item: #1 of 247 id: jnsps-10 author: Fagbemigun, T. S.; Olorunfemi, M. O.; Wahab, S. A. title: Modeling of Self Potential (SP) Anomalies over a Polarized Rod with Finite Depth Extents date: 2019-05-31 words: 2710 flesch: 53 summary: We also generated six (6) superimposed SP anomaly curves for same depth of burial but different dips and six (6) superimposed SP anomaly curves for same geologic dip but different depths of burial. The SP anomaly curves generated show that increase in depth of burial causes reduction in the peak negative amplitude of SP anomaly curves. keywords: amplitude; angle; anomalies; anomaly; burial; curves; depth; different; dip; distribution; equation; field; figure; geologic; geophysics; interpretation; journal; method; modeling; negative; nig; peak; polarized; potential; profiles; rod; sciences; self; soc; sp anomaly; study; superposition; target cache: jnsps-10.pdf plain text: jnsps-10.txt item: #2 of 247 id: jnsps-100 author: Kuboye, John; Elusakin, O. R.; Quadri, O. F. title: Numerical Algorithms for Direct Solution of Fourth Order Ordinary Differential Equations date: 2020-11-15 words: 3735 flesch: 73 summary: [15] J. O. Kuboye & Z. Omar, “New Zero-stable block method for direct so- lution of fourth order ordinary differential equation”, Indian Journal of Science and Technology 8 (2015) 1. [7] Z. Omar & J. O. Kuboye, “Comparison of block methods with differ- ent step-lengths for solving second order ordinary differential equations”, Journal of Computational and Theoretical Nanoscience Science and Tech- nology 15 (2018) 966. keywords: 2.2204460e-016; block; derivation; differential; eisbm; equations; error; fourth; hybrid; initial; journal; kuboye; method; nig; numerical; odes; omar; order; ordinary; phys; problem; sci; science; second; soc; solution; table; value; ;  cache: jnsps-100.pdf plain text: jnsps-100.txt item: #3 of 247 id: jnsps-101 author: B M, Dyavappa title: The Mass Resolution of Ca, K Isotopes and CO, N2 and C2H4 Isobars in Isotopes Separator On-Line trap Mass spectrometry date: 2020-08-01 words: 4072 flesch: 67 summary: Therefore the mass resolving power (M.R.P.) of masses of isotopes of ions is given by [1, 2, 3] (M.R.P.)ion = m δm = f0 ∆ f1/2 , (4) where m → mass of ion and δm → full width at half maximum in mass spectrum, f0 → centre frequency of the resonance line, ∆ f1/2 → full width at half maximum of the resonance line. Time of flight detection of cyclotron resonance of isotopes of potas- sium ions 3919 K +and 4119 K + at magnetic field 0.25T by RF excitation from 90-105 kHz drawn by using Mass Spectrometry Data Base of ions 3919 K + and 4119 K +from motional resonance spectrum are 98.426156 kHz and 93.624975 kHz respectively and hence the mass of ion of less abundant potassium isotope 4119 K + is deter- mined to be 40.9618 amu. keywords: 28(c2h4)]+; amu; charge; cyclotron; detector; different; excitation; field; figure; flight; frequencies; frequency; ions; isobars; isotopes; line; magnetic; mass; mass spectrometry; mass spectrum; masses; motion; penning; quadrupole; ratio; resolving; resonance; separator; specific; spectrometry; spectrum; state; time; trap cache: jnsps-101.pdf plain text: jnsps-101.txt item: #4 of 247 id: jnsps-1017 author: Sunday, Joshua; N. Ndam, Joel; J. Kwari, Lydia title: An Accuracy-preserving Block Hybrid Algorithm for the Integration of Second-order Physical Systems with Oscillatory Solutions date: 2023-01-14 words: 7314 flesch: 74 summary: Ref[10] formulated a continuous explicit hybrid method for the solution of second order differential equations. Ref[11] developed an order eight implicit block method for the solution of second order differential equations. keywords: accuracy; anomaly; applied; bha; block; continuous; damping; differential; equations; error; example; figure; fn+; fn+1; fn+k; form; global; hybrid; initial; j(t; j+2; journal; mathematics; maximum; method; n+r; n+s; nig; nonlinear; numerical; order; ordinary; oscillatory; physical; points; preserving; problems; proposed; region; results; second; soc; solution; stability; step; sunday; systems; t)y; table; value; y(tn cache: jnsps-1017.pdf plain text: jnsps-1017.txt item: #5 of 247 id: jnsps-1021 author: Hassan, Jabar; Majeed, Haider ; Arif, Ghassan Ezzulddin title: System of Non-Linear Volterra Integral Equations in a Direct-Sum of Hilbert Spaces date: 2022-10-01 words: 2964 flesch: 82 summary: It is clear ( H[t j, t j +4t],‖·‖H[t j,t j +4t] ) is a complete matrix space. The inner product in H[t j, t j + 4t] is defined by: 〈~f ,~g〉H[t j,t j +4t] = 〈 f1, g1〉V [t j,t j +4t] + 〈 f2, g2〉V keywords: +4 t; equations; existence; function; h[a; h[t; h[t j; hilbert; integral; j +4; kernel; linear; non; s,~h(s; solutions; space; t j; t t; theorem; uniqueness cache: jnsps-1021.pdf plain text: jnsps-1021.txt item: #6 of 247 id: jnsps-1028 author: Oladosu, Stephen Olushola; Alademomi , Alfred Sunday; Olaleye, James Bolarinwa; Olusina, Joseph Olalekan; Salami, Tosin Julius title: Evaluation of ANFIS Predictive Ability Using Computed Sediment from Gullies and Dam date: 2023-05-21 words: 8998 flesch: 62 summary: This shows that the proposed model is capable of generation output for every in- stance where predicted gully sediment volume and dam’s sedi- ment volume exist. The Ordinary Least Square (OLS) regression model on sediment volume retained all covariates with p<0.05, explaining 93.8% of the variability in the dataset. keywords: adaptive; algorithm; anfis; anfis model; ann; approach; area; average; bathymetric; bed; benin; best; calculated; channel; coefficient; computing; consequent; cross; dam; dam volume; data; dataset; depth; development; earth; edo; engineering; environment; equation; erosion; error; factor; figure; form; function; fuzzy; gullies; gully; gully erosion; gully volume; ikpoba; ikpoba dam; input; international; j. nig; journal; layer; learning; length; level; load; loss; mae; max; mean; membership; method; model; monitoring; network; neural; neuron; nig; nigeria; node; normalised; number; oladosu; output; parameters; phys; predictive; process; rainfall; regression; research; reservoir; result; river; rmse; rule; sci; sciences; sediment; sediment loss; sediment volume; set; size; slope; soc; soil; state; study; summary; systems; table; test; time; total; total volume; training; transit; university; validation; value; variables; vdam; velocity; volume; water; weight; year cache: jnsps-1028.pdf plain text: jnsps-1028.txt item: #7 of 247 id: jnsps-1029 author: Babalola, M. I.; Iyorzor, B. E.; Ebuwa, S. O. title: First Principles calculation of Half metallic proprieties of QCrAs (Q=Hf, Ti and Zr) date: 2023-01-21 words: 3326 flesch: 62 summary: Structural properties A cubic structure with MgAgAs type C1b structure forms during the crystallization of half Heusler alloys (UVW). [8] T. Yang, J. You, L. Hao, R. Khenata, Z. Y. Wang & X. Wang, “Struc- tural configuration and phase stability in full Heusler alloys Cr2ZnSi and Cr2ZnGe”, Journal of Magnetism and Magnetic Materials 498 (2020) 166188. keywords: alloys; babalola; band; calculation; channels; chemistry; compounds; constants; electronic; energies; energy; figure; half; half heusler; heusler; heusler alloys; hfcras; journal; lattice; magnetic; materials; mechanical; metallic; metals; moment; physical; physics; point; properties; qcras; ratio; results; spin; state; structural; table; thermodynamic; ticras; value; zrcras cache: jnsps-1029.pdf plain text: jnsps-1029.txt item: #8 of 247 id: jnsps-1048 author: Abdurrahman, Abdulwasiu; Waziri, Saidu Muhammad ; Ajayi, Olusegun Ayoola ; Dabai, Fadimatu Nyako title: Optimization of Potassium Carbonate-based DES as Catalyst in the Production of Biodiesel via Transesterification date: 2023-01-21 words: 6815 flesch: 54 summary: The mole ratio of K2CO3/glycerol also has a sig- nificant impact on biodiesel production, therefore a mole ratio of 1:32.58, a concentration of 8.96 percent w/w of DES, and a duration of 69.58 minutes are identified as the optimalreaction conditions. FAME yields in the range of 88.97–98.15% were obtained at DES component ratios of 1:20, 1:30, and 1:40, reaction times ranging from 30 to 120 minutes, and DES con- centrations ranging from 8 to 10% w/w, as indicated in Table 3. 3.2.1. keywords: abdurrahman; acid; analysis; biodiesel; bond; carbonate; catalyst; catalyzed; cetane; chcl; chemical; colorless; concentration; conditions; content; crude; curcas; data; deep; deep eutectic; density; des; design; dess; energy; engineering; eutectic; experimental; fame; fatty; figure; free; fuel; glycerol; heterogeneous; high; hydrogen; ionic; jatropha; journal; k2co3; koh; liquid; methyl; minutes; mixture; model; mole; nig; number; oil; order; phys; physical; potassium; process; production; properties; quality; range; ratio; reaction; response; result; salt; sci; separation; significant; soc; society; solvents; study; synthesis; synthesized; table; temperature; time; transesterification; value; viscosity; yield cache: jnsps-1048.pdf plain text: jnsps-1048.txt item: #9 of 247 id: jnsps-105 author: Labulo, Ayomide; Adesuji, Elijah Temitope ; Oseghale, Charles Ojiefoh ; Elias Emeka Elemike; Adamu Usman; Akinola Kehinde Akinola; Enock Olugbenga Dare title: Effect of benzophenone on the physicochemical properties of N-CNTs synthesized from 1-ferrocenylmethyl (2-methylimidazole) catalyst date: 2020-11-15 words: 8197 flesch: 61 summary: XPS N 1s spectra of (a) N-CNTs-0%, (b) N-CNTs-3% and (c) N-CNTs-Fe centration (Table 8); a result consistent with Raman and TGA data. An increase in N content was observed with the introduction of a lower concentration of oxygen, followed by a gradual decrease at higher oxygen concentration. keywords: acetonitrile; acid; activity; adv; aligned; alignment; amorphous; analysis; applications; area; at.%; bamboo; benzophenone; carbon; carbon nanotubes; catalyst; catalytic; characterization; chem; chemical; cm−1; cnts; cnts-3; co2; concentration; content; cvd; d002; decrease; defects; deposition; diameter; different; doping; effect; elemental; energy; fcmech3; ferrocenyl; figure; formation; ftir; functional; graphene; graphitic; groups; growth; high; higher; hydrogen; images; increases; introduction; labulo; lee; lett; liu; loss; method; methylimidazole; mixture; morphology; nanoparticles; nanotubes; nig; nitrogen; oxygen; oxygen concentration; peaks; phys; potential; properties; pyrrolic; raman; ray; reaction; result; role; samples; sci; single; soc; south; spacing; species; spectra; structure; study; surface; synthesis; table; temperature; thermal; thickness; type; vapour; wall; walled; wang; water; xps; zeta; zhang cache: jnsps-105.pdf plain text: jnsps-105.txt item: #10 of 247 id: jnsps-1050 author: A. Sherin Fathima; I. Kartharinal Punithavthy; S, S. Johnson Jayakumar; A. Rajeshwari; A. Sindhya; A. Muthuvel title: Structural, Optical and Electrical Properties of V2O5 Thin films at different Molarities by Spray pyrolysis method date: 2022-11-27 words: 4373 flesch: 51 summary: Abstract Vanadium pentoxide (V2O5) and indium tin oxide (ITO) coated V2O5 thin films were prepared by hydrothermal technique. DOI:10.46481/jnsps.2022.1050 Keywords: V2O5 Thin films, Optical properties, Surface Morphology. keywords: absorption; analysis; applications; arrangement; average; band; batteries; boat; coated; concentration; crystal; deposition; different; edax; effect; electrical; electrochemical; fathima; fig; figure; films; gap; high; ito; journal; like; materials; metal; method; molarities; molarity; morphological; morphology; nanoparticles; nig; optical; oxide; oxygen; peaks; phases; photocatalytic; phys; physical; prepared; process; properties; pure; pure v2o5; pyrolysis; result; sakthipandi; sci; sem; size; soc; spectra; spray; structural; studies; substrate; surface; synthesis; temperature; thin; thin films; v2o5; vanadium; vo2; xrd cache: jnsps-1050.pdf plain text: jnsps-1050.txt item: #11 of 247 id: jnsps-1054 author: Ramanuja, M.; Kavitha, J.; Sudhakar, A.; Radhika, N. title: Study of MHD SWCNT-Blood Nanofluid Flow in Presence of Viscous Dissipation and Radiation Effects through Porous Medium date: 2023-01-14 words: 7719 flesch: 59 summary: [7] have investigated, via a stretching flat surface, the effect of thermal radiation on MHD fluid flow. [30] D. Nouri, M. Pasandideh-Fard, M. J. Oboodi, O Mahian & A. Z. Sahin, “Entropy generation analysis of nanofluid flow over spherical heat source inside a channel with sudden expansion and contraction”, Int. keywords: base; blood; boundary; carbon; casson; channel; chemical; conductivity; convection; decreases; density; dimensionless; dissipation; eckert; effects; entropy; equations; et al; field; figure; flow; fluid; free; friction; generation; heat; heat transfer; human; hydromagnetic; impact; injection; int; journal; layer; magnetic; mass; mathematical; medium; mhd; model; nanofluid; nanofluid flow; nanoparticles; nig; non; noticed; number; numerical; nusselt; parameter; phys; physical; plate; porous; profile; properties; quantity; radiation; ramanuja; results; sci; sheet; skin; slip; soc; source; stretching; suction; surface; swcnt; table; temperature; thermal; thickness; transfer; unsteady; values; velocity; vertical; viscosity; viscous; θ(ς; ρcp; ρn f; ∂y2 cache: jnsps-1054.pdf plain text: jnsps-1054.txt item: #12 of 247 id: jnsps-1055 author: Bolaji, Bolarinwa; Omede, B. I.; Odionyenma, U. B.; Ojih, P. B.; Ibrahim, Abdullahi A. title: Modelling the transmission dynamics of Omicron variant of COVID-19 in densely populated city of Lagos in Nigeria date: 2023-04-17 words: 10913 flesch: 63 summary: Consequently, all the solutions in R7+ is attracted to region D. Since the domain D is positively-invariant, it is sufficient to in- vestigate the dynamics of the flow generated by the Omicron variant of COVID-19 model (2) in D. Consequently, the model (2) is both mathematically and epidemiologically well posed. Therefore, by the LaSalle’s invariance principle [37], the DFE of the Omicron variant of COVID-19 model (2) is globally asymptotically stable whenever R0 ≤ 1. 3.4. keywords: active; analysis; b3 b4; b4 b5; bolaji; cases; city; class; compartment; contact; control; coronavirus; covid-19; cumulative; data; days; detection; dfe; disease; dynamics; equations; face; figure; fitting; function; help; individuals; infected; infectious; inhabitants; lagos; masks; mathematical; measures; model; nigeria; number; numerical; omicron; pandemic; parameters; people; phys; plot; population; protocols; public; qσθb3; rate; reproduction; safety; sci; simulations; size; soc; spread; stability; surface; symptomatic; testing; time; transmission; values; variant; work; αia; αqσb3; γ j; σb1; ψb1 cache: jnsps-1055.pdf plain text: jnsps-1055.txt item: #13 of 247 id: jnsps-1075 author: Ajileye, Ganiyu ; James, Adewale title: Collocation Method for the Numerical Solution of Multi-Order Fractional Differential Equations date: 2023-06-11 words: 3971 flesch: 79 summary: DOI:10.46481/jnsps.2023.1075 Keywords: Keywords: Differential equation, Fractional derivatives, Approximate solution, Power series. Some of the numerical solution of fractional differential equations developed in the literature include: Perturbed collocation method [2], Adomian decompositions method by [3-5], Collocation method by [6-9], Chebyshev- Gelerkin method [10], Bernoulli matrix method [11], Differential transform method keywords: approximate; collocation; differential; equation; form; fractional; function; integral; integro; j(s; journal; k=0; linear; mathematics; method; multi; numerical; order; s)1.5−1; sci; solution; substituting; t)m; w(x; w(xi; y(x; γ(1.5; γ(m; γ(m j; γ(n; γ(β; −α j cache: jnsps-1075.pdf plain text: jnsps-1075.txt item: #14 of 247 id: jnsps-108 author: Akinnukawe, B. I.; Muka, K. O. title: L-Stable Block Hybrid Numerical Algorithm for First-Order Ordinary Differential Equations date: 2020-08-01 words: 3299 flesch: 73 summary: Some of the ODEs have been proven not to have closed-form solution hence the need to develop numerical methods to pro- vide approximate solutions to these problems. [13] J. D. Lambert, Numerical methods for ordinary differential systems, John Wiley, New York, 1991. keywords: akinnukawe; bhmm; block; conditions; continuous; derivative; differential; equations; error; fn+; form; hybrid; initial; journal; mathematics; methods; muka; multistep; new; numerical; odes; order; ordinary; problem; second; solution; stability; stable; stiff; systems cache: jnsps-108.pdf plain text: jnsps-108.txt item: #15 of 247 id: jnsps-1081 author: Lawal, Y. B.; Omotoso, E. T. title: Investigation of Point Refractivity Gradient and Geoclimatic Factor at 70 m Altitude in Yenagoa, Nigeria date: 2023-01-27 words: 4104 flesch: 53 summary: Radio point refractivity gradient and geoclimatic factors are major quantities whose values must be taken into consideration when designing inter-terrestrial radio links. This implies that extremely poor prop- agation condition (ducting) is likely to occur in November due to the extreme values of point refractivity gradient and geocli- matic factor. keywords: altitude; atmospheric; august; average; coastal; conditions; data; design; dry; ecmwf; equation; estimation; factor; figure; geoclimatic; geoclimatic factor; gradient; height; humidity; index; international; itu; january; journal; lawal; links; monthly; months; nigeria; parameters; phys; point; pressure; propagation; radio; rainfall; rainy; refraction; refractivity; refractivity gradient; research; results; sci; season; signal; soc; state; surface; temperature; terrestrial; units; values; variation; yenagoa cache: jnsps-1081.pdf plain text: jnsps-1081.txt item: #16 of 247 id: jnsps-1083 author: Abdulkadhim, T. M. J.; Alsaati, S. A. A.; Shinen, M. H. title: Theoretical Investigation of Diameter Effects and Edge Configuration on the Optical Properties of Graphdiyne Nanotubes in the Presence of Electric Field date: 2023-03-02 words: 4845 flesch: 62 summary: Investigating the Structural Properties Similar to carbon nanotubes, Graphdiyne nanotubes are pro- duced by rolling the Graphdiyne sheet (plate). This difference leads to more structural flexibility for Graphdiyne nanotubes compared to carbon nanotubes keywords: 0.2v; absence; absorption; ant; armchair; axis; band; band gap; band structure; carbon; carbon nanotubes; coefficient; comparison; conductivity; diagram; diameter; different; direction; e=0.1; electric; electric field; energy; external; external electric; field; figure; function; gdy; graphdiyne; graphdiyne nanotubes; index; intensity; nanotube diameter; nanotubes; nig; optical; phys; presence; properties; reflection; refractive; related; results; sci; size; soc; structure; table; zigzag; znt cache: jnsps-1083.pdf plain text: jnsps-1083.txt item: #17 of 247 id: jnsps-1087 author: Hussain, Kashif; Adeyeye, Oluwaseun; Ahmad, Nazihah title: Numerical Solution of Second Order Fuzzy Ordinary Differential Equations using Two-Step Block Method with Third and Fourth Derivatives date: 2023-04-04 words: 6985 flesch: 75 summary: Linear block approach using Taylor series expansion is adopted for the derivation of the proposed method and the basic properties are established using the definitions of stability and consistency for block methods. To bypass the rigor of re- duction, block methods were introduced for the direct solution of second-order FODEs in [15-17]. keywords: 1,α; absolute; accuracy; approximate; article; block; block method; definition; derivative; differential; ebhdef; equation; error; exact; example; figure; fn+1; fn+2; fodes; form; fuzzy; hussain; initial; level; lim; linear; lower; math; method; n+1; n+2; nig; numerical; order; phys; polynomial; problems; region; results; sci; second; section; set; soc; solution; stability; step; table; terms; time; tsbm; upper; value; ŷ(x; ŷn; α α cache: jnsps-1087.pdf plain text: jnsps-1087.txt item: #18 of 247 id: jnsps-109 author: Hassan, Adamu Shitu; Hussaini, Nafiu title: Analysis of an HIV - HCV simultaneous infection model with time delay date: 2021-02-16 words: 8157 flesch: 69 summary: Thus we have IH (t − τ1)e−µτ1 representing the HIV only infectives that can only infect after the elapse of τ1, (the latent period for HIV) and e−µτ1 , the survival probability over the latent period. Lastly, IHC (t − τ3)e−µτ3 stand for the HIV and HCV infectives that can infect after the elapse of τ3, (the latent period for simul- taneous infection of HIV and HCV), while e−µτ3 is the survival probability over the latent period. keywords: 1–11; analysis; assumed; average; basic; death; delay; dfe; diseases; dynamics; endemic; equation; equilibrium; e−µτβhc; following; global; hassan; hcv; hepatitis; hiv; hussaini; ihc; individuals; infected; infection; journal; latent; mathematical; model; nig; number; parameter; period; phys; population; properties; rate; real; reproduction; rhc; root; sci; simultaneous; soc; stability; stable; susceptible; t −τ; threshold; time; transmission; values; virus; βhc cache: jnsps-109.pdf plain text: jnsps-109.txt item: #19 of 247 id: jnsps-1094 author: Aminu Yamusa, Shehu; Shaari, A; Isah, Ibrahim; Bello Ibrahim, Usama; I. Kunya, Salisu ; Abdulkarim, Sani; Itas, Y. S. ; Alsalamh, M. title: Effects of Exchange Correlation Functional (Vwdf3) on the Structural, Elastic, and Electronic Properties of Transition Metal Dichalogenides date: 2023-01-14 words: 4157 flesch: 57 summary: The valence band maximum (VBM) and conduction band minimum (CBM) located at Γ and between Γ − K, respectively, were used to determine the band gaps as shown in Table 3. To further explain the efficiency of VdW-DF3 XC func- tional, the electronic band structure and density of states were calculated for MoS2, MoSe2 and MoTe2 systems, the results presented in Figure 2 show that MoS2 demonstrated band gap of 0.79 eV, MoSe 2 revealed 0.88 eV and MoTe2 was found to be 0.67 eV. This results showed significant improvement in narrowing the band gap of TMDs by vdW-DF3 XC functional which brought them to new applications for optoelectronics [25]. The calculations were performed via ab initio density functional theory (DFT) using plane-wave basis as implemented in the Quantum-ESPRESSO package, this in- cludes the optimization, and determination of equilibrium lat- tice parameters, and electronic band gaps. keywords: band; bulk; calculated; correlation; density; department; der; df3; dft; dichalcogenides; dielectric; elastic; electronic; energy; exchange; figure; functional; gap; imaginary; journal; júnior; lattice; materials; mos2; mote2; mox2; nig; optical; parameters; pbe; phys; physical; physics; properties; range; results; rvv10; science; soc; state; structural; study; systems; table; tmds; transition; van; vdw; waals; yamusa cache: jnsps-1094.pdf plain text: jnsps-1094.txt item: #20 of 247 id: jnsps-11 author: Bello, I. T.; Odedunmoye, Y. A.; Adedokun, O.; Shittu, H. A.; Awodugba, A. O. title: Numerical Simulation of Sandwiched Perovskite-Based Solar Cell Using Solar Cell Capacitance Simulator (SCAPS-1D) date: 2019-06-19 words: 2815 flesch: 56 summary: 3. Methodology and Simulations Numerical simulation technique of solar cells devices has over the years proved to be a viable tool for studying and under- standing the properties of solar cell devices such as the optical, electrical and mechanical properties of complex solar cell de- vices [5]. Perovskite solar cells have at- tracted salient attention of the academic community since the first reported article in 2012 keywords: absorber; band; bello; capacitance; cell; czts; device; diagram; efficiencies; efficiency; electron; energy; figure; gap; higher; hole; hybrid; journal; layer; materials; nig; observed; parameters; perovskite; photovoltaic; phys; pscs; sandwiched; scaps-1d; sci; simulated; simulator; soc; solar; solar cell; thickness; wavelength; work; zno cache: jnsps-11.pdf plain text: jnsps-11.txt item: #21 of 247 id: jnsps-1103 author: Disu, A. B.; Salawu, S. O. title: Thermal distribution of magneto-tangent hyperbolic flowing fluid over a porous moving sheet: A Lie group analysis date: 2023-02-24 words: 6662 flesch: 60 summary: [11] examined the cross- diffusion impact on magnetohydrodynamic fluid flow through a stretched sheet with velocity slip. Prandtl number Pr and thermal slip term b. • A rising thermal boundary film viscosity structure is formed with increasing the fluid heat conduction term ζ, radiative heat term Nr, Darcy number as well as the heat source parameter Q. References [1] T. Abbas, S. Rehman, A. S. Muhammad & I. Utmankhel, ”Analysis of MHD Carreau fluid flow over a stretching permeable sheet with variable viscosity and thermal conductivity”, Physica A: Statistical Mechanics Ap- plications 551 (2020) 215. keywords: analysis; approach; boundary; conditions; conductivity; darcy; differential; distribution; disu; effect; energy; engineering; enhancement; eqs; equations; field; figure; flow; fluid; flux; group; heat; heating; hyperbolic; impact; influence; journal; layer; lie; liquid; magnetic; magnetohydrodynamic; mass; material; mhd; model; motion; nig; nonlinear; number; numerical; ordinary; parameter; partial; phys; physical; plate; porous; power; prandtl; radiation; radiative; rate; salawu; sci; sheet; slip; soc; source; stretching; structure; study; suction; surface; tangent; temperature; term; thermal; transfer; transformation; transport; velocity; viscosity; viscous; θ(η; ∂y2; ∂ψ∗ cache: jnsps-1103.pdf plain text: jnsps-1103.txt item: #22 of 247 id: jnsps-1109 author: Afolagboye, Lekan Olatayo; Arije, Zaccheaus Olajide ; Talabi, Abel Ojo; Owoyemi, Olubunmi Oluwadare title: Effect of Pre-Test Drying Temperature on the Properties of Lateritic Soils. date: 2023-02-04 words: 7118 flesch: 63 summary: The free swell index of the lateritic soils increased with increasing pre-test drying temperatures (up to 60 ◦C) before decreasing when the temperature rose to 110 ◦C. This study has revealed the effect that pre-test drying temperatures may have on the properties of lateritic soils, and these may produce soil properties that do not likely indicate the actual field performance of the tested soils. DOI:10.46481/jnsps.2023.1109 Keywords: Lateritic soil, Pre-test drying temperature, Index properties, Oven drying, Soil classification. keywords: afolagboye; air; average; c oven; charnockite; classification; clay; consistency; content; different; doi; drying; effect; engineering; fractions; geology; granite; increase; index; inorganic; lateritic; lateritic soils; limits; mdd; method; moisture; nigeria; nmc; omc; oven; parent; particle; plasticity; pre; properties; quartzite; residual; rock; samples; sand; sci; size; soils; standard; strength; study; table; temperature; test; ucs; ◦ c cache: jnsps-1109.pdf plain text: jnsps-1109.txt item: #23 of 247 id: jnsps-1112 author: Bashir, Dlal; Kamarulhaili, Hailiza; Babarinsa, Olayiwola title: A Review on Quadrant Interlocking Factorization: WZ andWH Factorization date: 2023-02-24 words: 10357 flesch: 75 summary: To get the matrix B, we express B as B = ( W (2) ·W (1) ·P(1) )−1 ·H 4. Investigation for further studies on W Z and W H factor- ization There are bridging gaps to be uncovered not only between W Z factorization and W H factorization but also within Z-matrix and hourglass matrix. The two forms of QIF among others, which are not only similar in algorithm but also in computation, are W Z factorization and W H factorization yet differs in applications and properties. keywords: 1,2; 1,3; 10w; 5,6; = z; = −; algorithm; appl; babarinsa; bashir; block; breakdown; bylina; column; compute; computing; conference; cramer; dominant; elements; entries; equation; evans; factorization; form; graph; hourglass; hourglass matrix; i,1; ieee; interchange; interlocking; journal; k w; k−1; linear; math; matrices; matrix; matrix b; method; mixed; nig; nonsingular; nonzero; number; n−1; n−k+1; odd; order; parallel; permutation; phys; qif; quadrant; row; sci; science; set; soc; step; suitable; systems; theorem; time; update; w h; w z; ⇒; ;  cache: jnsps-1112.pdf plain text: jnsps-1112.txt item: #24 of 247 id: jnsps-1116 author: Abdul-Hammed, Misbaudeen; Adedotun, Ibrahim Olaide ; Afolabi, Tolulope Irapada Afolabi; Ismail, Ubeydat Temitope ; Akande, Praise Toluwalase ; Issa, Balqees Funmilayo title: Analysis of the Bioactive Compounds from Carica papaya in the Management of Psoriasis using Computational Techniques date: 2023-02-27 words: 7456 flesch: 52 summary: 3.58 SD2 C62H111N11O12 1202.61 278.80Ų 15 2.92 -8.15 0.17 0.79 0 10.00 M. F = Molecular formular, M.W = Molecular weight, #RB = Rotatable bond, B.S = Bioavailability score, S.A = Synthetic accessibility C1=Dehydrocarpaine II, C2=Chlorogenic acid , C3=Dehydrocarpaine I , C4=Coumaroylquinic acid, SD1=methotrexate , SD2=Cyclosporine Table 6. L1 = 2,6Dimethoxyphenol, L2 = Gentisyl Alcohol, L3 = Cinnamic acid, L4 = Sinapinic acid, L5 = Salicylic Acid, L6 = Caffeic Acid, L7=phydroxybenzoic acid, L8=pcoumaric acid, L9=Coumaroylquinic acid, L10=Chlorogenic Acid, L11=transLinalool oxide, L12 = PHydroxyl Benzoic, L1 = Citric acid , L14 = Malic acid, L15= nHexadecanoic acid, L16= Butanoic acid, L17=Linoleic acid, L18=Oleic acid, L19=Palmitic acid, L20=nButyric acidl, L21=nOctanoic acid, L22=Myristic acid L23=Stearic acid, L24=nHexanoic acid, L25=cisvaccenic, L26=Dehydrocarpaine I, L27=Dehydrocarpaine II, SD1=methotrexate, SD2=Cyclosporine 3.2. keywords: 6n7b; abdul; acid; active; activity; admet; alpha; amino; analysis; anti; arg1007; asn1008; asp1021; binding; bioactivity; bioavailability; biological; blood; bond; carica; cells; chemistry; chlorogenic; compounds; constant; coumaroylquinic; cyclosporine; dehydrocarpaine; dermatology; development; discovery; disease; docking; drug; efficiency; excellent; factor; good; human; iii; inflammation; inflammatory; inhibition; inhibitors; interactions; jak1; janus; journal; kcal; kinase; lead; leu1010; ligands; likeness; main; methotrexate; mode; mol; molecular; necrosis; nig; non; oral; papaya; pass; pdb; phys; phytochemicals; potential; prediction; properties; protein; psoriasis; psoriatic; range; receptor; results; sci; sd1; sd2; site; skin; soc; standard; structure; table; target; therapeutic; tnf; toxic; treatment; tumor; web cache: jnsps-1116.pdf plain text: jnsps-1116.txt item: #25 of 247 id: jnsps-112 author: S. O. Ikubanni; S. J. Adebiyi; B. O. Adebesin; O. S. Bolaji; B. J. Adekoya; B. W. Joshua; J. O. Adeniyi title: GPS-TEC Variations over the African Low-latitude Ionosphereduring March 2013 and 2015 Geomagnetic Storms date: 2020-11-15 words: 7483 flesch: 63 summary: [18] J. B. Habarulema, E. Yizengaw, Z. T. Katamzi-Joseph, M. B. Moldwin & S. Buchert, “Storm time global observations of large-scale TIDs from ground-based and in-situ satellite measurements”, J. Geophys. [27] D. J. Crain, J. J. Sojka, R. W. Schunk & L. Zhu, “Parameterized study of the ionospheric modification associated with sun-aligned polar cap arcs”, J. Geophys. keywords: african; beginning; changes; crest; data; day; days; ddef; decreases; depletions; disturbance; disturbed; earth; effects; eia; electric; electron; enhancements; equatorial; events; field; figure; geomagnetic; geophys; higher; hours; ikubanni; imf; increase; interplanetary; ionospheric; irregularities; j. geophys; large; latitude; local; low; magnitude; main; march; nig; north; northern; observations; observed; patrick; peak; phase; physics; plasma; ppef; prominent; quiet; recovery; region; res; sci; sector; soc; solar; southern; space; stations; storm; structure; sym; tec; time; trough; value cache: jnsps-112.pdf plain text: jnsps-112.txt item: #26 of 247 id: jnsps-1137 author: Ibidoja, Olayemi Joshua; Shan, Fam Pei ; Mukhtar; Sulaiman, Jumat ; Majahar Ali, Majid Khan title: Robust M-estimators and Machine Learning Algorithms for Improving the Predictive Accuracy of Seaweed Contaminated Big Data date: 2023-02-04 words: 5129 flesch: 65 summary: To propose a hybrid model that combines robust M- estimators and machine learning models to improve the prediction accuracy. Table 4 is the summary of the original model without using robust method and the hybrid models ,which combines machine learning models and robust estimation techniques. keywords: algorithm; bagging; content; data; doi; drying; estimation; forest; function; hampel; highest; huber; hybrid; i=1; important; journal; learning; lowest; machine; malaysia; method; model; moisture; nig; number; ols; outliers; parameters; phys; random; regression; removal; residuals; results; robust; sci; sciences; seaweed; selection; significant; soc; square; study; support; table; variables; vector; |e| cache: jnsps-1137.pdf plain text: jnsps-1137.txt item: #27 of 247 id: jnsps-1143 author: Al-Ali, Suha Ibrahim Salih; Abudi, Zaidun Naji; Abbas, Mohammed Nsaif title: Modelling and Simulation for the use of Natural Waste to Purified Contaminated Heavy Metals date: 2022-12-23 words: 7167 flesch: 53 summary: The percentage of copper ions adsorption and the adsorption capacity are calcu- lated using equations 1 and 2 The influ- ence of acidity on the efficiency of Cu+2 ions adsorption was studied within a range of 1 to 8, while other factors remained constant at their optimum values. keywords: abbas; active; adsorbent; adsorption; adsorption efficiency; ali; aqueous; batch; calibration; capacity; chemical; concentration; constant; contaminated; copper; copper ions; cu+2; curve; dose; effect; efficiency; energy; engineering; environment; equation; equilibrium; figure; form; general; heavy; ibrahim; increase; influence; initial; ions; journal; kinetic; langmuir; leaves; m. n.; material; maximum; media; metals; model; n. abbas; natural; nig; number; peels; phys; pollutants; pollution; process; removal; results; rice; sci; sciences; sites; soc; solution; speed; study; surface; tea; tea leaves; temperature; thermodynamic; time; toxic; treatment; unit; use; values; waste; water cache: jnsps-1143.pdf plain text: jnsps-1143.txt item: #28 of 247 id: jnsps-1148 author: Nandhini, K.; Vidhya, V. title: An Alleviation of Cloud Congestion Analysis of Fluid Retrial User on Matrix Analytic Method in IoT-based Application date: 2023-04-04 words: 6965 flesch: 66 summary: This section includes the set of governing equation driven by QBD process over fluid retrial queue with non-persistent users. The phenomenon of fluid queues has garnered a lot of attention over the last two decades. keywords: access; analysis; analytic; approach; arrival; background; behaviour; buffer; busy; cloud; computing; congestion; content; data; death; distribution; equation; event; figure; fluid; function; f̂00(s; information; intensities; international; iot; journal; k=0; markov; matrix; method; model; nandhini; network; nig; non; occupancy; operational; orbit; packet; performance; phys; probability; process; proof; queue; queueing; r(s; rate; research; result; retrial; sci; section; server; service; set; soc; solution; sr0; stability; state; stationary; steady; storage; system; theorem; time; traffic; transition; user; variation; vidhya; virtual; µ+θp̄1; θp̄1; θp̄1r(s; θµp; λ)(sr0; λq1; χ(s cache: jnsps-1148.pdf plain text: jnsps-1148.txt item: #29 of 247 id: jnsps-1154 author: Duru, Chidi; Enyoh, Christian; Duru, Ijeoma Akunna; Enedoh, Margaret Chinyelu title: Degradation of PET Nanoplastic Oligomers at the Novel PHL7 Target:Insights from Molecular Docking and Machine Learning date: 2023-01-27 words: 3666 flesch: 52 summary: The results revealed that the binding affinity of PET NPs at the enzyme target decreased from -5.2 kcal/mol to -0.8 kcal/mol, with an increase in PET chain length from 2.18 nm to 5.45 nm (2-5 PET chains). NP1 1.09 - 5.4 NP2 2.18 - 5.2 NP3 3.27 - 5.1 NP4 4.36 - 3.8 NP5 5.45 - 0.8 NP6 6.54 23.2 NP7 7.63 38.5 NP8 8.72 51.4 NP9 9.81 137.8 NP10 10.90 139.8 Figure 2: Plot of PET chain length against binding affinity at PHL7 active site 4 C. E. Duru et al. / J. Nig. keywords: active; affinities; affinity; ann; artificial; binding; c. e.; chain; chemical; chemistry; computational; degradation; docking; duru; energy; environmental; enzyme; figure; function; hidden; hydrolase; hydrolysis; imo; input; journal; kcal; layer; length; molecular; nanoplastic; network; nig; novel; nps; oligomers; pet; phl7; phys; physical; plastic; polyester; polymer; recycling; results; sci; sciences; site; soc; state; study; table; target; terephthalate; units cache: jnsps-1154.pdf plain text: jnsps-1154.txt item: #30 of 247 id: jnsps-1160 author: Gopi, C. ; Anand E, Edward; Charles, A.; Manivannan, C.; Lakshmi, S .Ponsadai; Jose, A.; Muthiyan, M. title: Physico-Chemical and Trace Metal Analysis in Groundwater of Nagapattinam Region in Nagapattinam District of Tamilnadu State date: 2023-03-18 words: 4182 flesch: 60 summary: Total Dissolved Solids Total dissolved solids (TDS) indicate the salinity behavior of ground water sample. 2. Materials and Methods In the post-monsoon period of 2020, water samples were taken from ten sample points in Nagapattinam and the sur- rounding area (January) in the depth of 40 Ft. APHA [5] was used to collect and analyze the samples. keywords: activity; agricultural; area; assessment; bore; calcium; chemical; chloride; concentration; copper; correlation; detection; district; drinking; groundwater; hardness; health; heavy; higher; human; increase; india; iron; january; level; limit; low; magnesium; maximum; metal; monsoon; nagapattinam; nig; nitrate; parameters; permissible; phosphate; physico; potassium; present; quality; region; samples; sci; soc; sodium; study; sulphate; table; tds; total; trace; value; waste; water; zinc cache: jnsps-1160.pdf plain text: jnsps-1160.txt item: #31 of 247 id: jnsps-1180 author: Fasasi, Adeniyi Yisau; Ajenifuja, Emmanuel; Osagie, Edward; Animashaun, Lukman; Adeoye, Abiodun ; Obiajunwa, Eusebius title: Optical, Dielectric and Optoelectronic Properties of Spray Deposited Cu-doped Fe2O3 Thin Films date: 2023-06-14 words: 9628 flesch: 59 summary: In thin films”, Journal of Materials Research and Technology 2 (2013) 227. [80] K.A. Aly, A.A. Elnaeim, M. Uosif & O. Abdel-Rahim, “Optical proper- ties of Ge–As–Te thin films”, Physica B: Condensed Matter 406 (2011) 4232. Composition and thickness measurements determined by RBS revealed that ethanol precursor produced thinner films of 94.45 and 51.77 nm while aqua precursor produced films of 1,370 and 1,120 nm for undoped and Cu-doped Fe2O3 respectively. keywords: absorption; afs; alcohol; applications; average; band; bandgap; carbon; characterization; chem; chemistry; coefficient; composition; conductivity; constant; crystalline; davis; density; deposition; depth; determination; dielectric; dispersion; distilled; effective; electronic; energies; energy; eosc; equation; ethanol; fasasi; fe2o3; figure; films; frequency; gap; hematite; high; index; indirect; international; iron; journal; kbt; liu; low; magnetic; materials; method; model; mott; nanoparticles; nig; non; nonlinear; number; optical; oscillator; oxide; parameters; passes; performance; photon; phys; physics; precursor; properties; pyrolysis; ratio; rbs; refractive; result; single; skin; slope; soc; solar; solid; solution; splitting; spray; state; structural; studies; study; substrate; supercapacitors; synthesis; table; tail; tauc; thickness; thin; thin films; transition; transmittance; undoped; urbach; values; wang; water; wavelength; zhou cache: jnsps-1180.pdf plain text: jnsps-1180.txt item: #32 of 247 id: jnsps-12 author: Ogunniran, M. O. title: A Class of Block Multi-derivative Numerical Techniques for Singular Advection Equations date: 2019-07-13 words: 5341 flesch: 71 summary: Also, Figures 4-11, in pairs, Figure 5: Graph of Numerical Solution of Example 1 show the graphical comparison of derived methods with exact for the advection problems considered. Summary and Discussion of Results This work contains a new class of multi-derivative method. keywords: -16; 62–71; advection; class; computational; cpu; derivative; difference; differential; equations; error; exact; example; figure; fn+; fn+1; fn+2; linear; method; multi; nig; numerical; ogunniran; order; partial; phys; points; relative; sci; singular; soc; solution; stability; step; table; time; u(x; v(x; ;  cache: jnsps-12.pdf plain text: jnsps-12.txt item: #33 of 247 id: jnsps-1208 author: TOKAM, Leonce Wehnelt; OURO-DJOBO, Sanoussi S. title: Non-Intrusive Load Monitoring (NILM), Interests and Applications date: 2023-05-27 words: 8262 flesch: 53 summary: In addition to presenting non-intrusive load monitoring (NILM) in its general framework, this article presents the interests and applications of this approach in various fields. DOI:10.46481/jnsps.2023.1208 Keywords: Non-intrusive load monitoring (NILM), power consumption, interests, applications Article History : Received: 25 March 2023 Received in revised form: 06 May 2023 Accepted for publication: 10 May 2023 Published: 27 May 2023 keywords: addition; algorithms; appliances; applications; approach; artificial; authors; case; characteristics; classification; co2; concept; consumption; current; data; dataset; demand; detection; devices; different; disaggregation; djobo; electrical; electricity; end; energy; event; example; extraction; features; fields; figure; frequency; hidden; high; hmm; households; identification; ieee; information; intelligence; interest; international; intrusive; intrusive load; journal; learning; literature; load; load monitoring; low; machine; management; markov; methods; model; monitoring; multi; nig; nilm; non; nonintrusive; number; operating; operation; order; ouro; overall; performance; phys; power; rate; real; research; researchers; results; sampling; sci; semi; signal; signatures; smart; soc; solutions; state; steady; supervised; system; time; tokam; training; transient; type; unlabeled; use; voltage; water; work cache: jnsps-1208.pdf plain text: jnsps-1208.txt item: #34 of 247 id: jnsps-1221 author: Basim, M.; N. Senu; A. Ahmadian; Ibrahim, Z. B.; Salahshour, S. title: Solving fractional variable-order differential equations of the non-singular derivative using Jacobi operational matrix date: 2023-05-05 words: 6899 flesch: 74 summary: Keywords: Fractional differential equations; Atangana-Baleanu Caputo; Variable order; Operational matrix. [8] S. Arshad, I. Saleem, O. Defterli, Y. Tang, & D. Baleanu, “Simpson’s method for fractional differential equations with a non-singular kernel ap- plied to a chaotic tumor model”, Physica Scripta 96 (2021) 124019. keywords: abc; abcdαy(t; absolute; applications; approximate; atangana; baleanu; basim; calculus; caputo; chebyshev; collocation; derivative; differential; doha; equations; error; exact; example; fdes; figure; fractional; i(t; initial; j(u; jacobi; jom(0,0.5; journal; k=0; linear; lom; m(α; mathematics; matrix; method; mtslp; n +; nig; non; nonlinear; numerical; operational; order; phys; polynomials; prco; problems; respect; sci; section; shifted; sjps; soc; solution; spectral; table; tau; v)l; variable; vector; y(t; ψ(t; −α(t cache: jnsps-1221.pdf plain text: jnsps-1221.txt item: #35 of 247 id: jnsps-1222 author: Busari, Rafiu Adewale; Omotoso, Ezekiel; Animasahun, Lukman O.; Adewinbi, Saheed Adekunle; Adewumi, Emmanuel O.; Famoroti, Comfort T.; Taleatu, Bidini A.; Fasasi, Adeniyi Y. title: Tuning the optical properties and some surface structure of Cd-O thin film electrodeposited by two-electrode: An effect of Cobalt incorporation date: 2023-05-02 words: 4777 flesch: 54 summary: Sci. 5 (2023) 1222 3 Figure 1: EDX spectrum of (a) CdO thin film; (b) Co-CdO thin film Figure 2: SEM images of (a) pure CdO, (b) Co-CdO @ CdO thin film struc- ture with lattice parameter of ∼ 0.474 nm, which is near the value of 0.46948 nm for CdO keywords: absorption; band; busari; cadmium; cdo; cdo thin; characterization; coefficient; concentration; conductivity; constant; deposition; dielectric; diffraction; dopant; electrode; energy; extinction; figure; films; frequency; gap; growth; high; incident; index; journal; light; materials; nig; observed; optical; optoelectronic; orientation; oxide; parameters; photon; physical; physics; polycrystalline; properties; pure; ray; refractive; samples; sci; soc; structural; substrates; surface; synthesis; technique; temperature; thin; thin films; transparent; university; values; wavelength cache: jnsps-1222.pdf plain text: jnsps-1222.txt item: #36 of 247 id: jnsps-1231 author: Sharma, Pushap Lata; Kapalta, Mohini ; Kumar, Ashok; Bains, Deepak; Gupta, Sumit; Thakur, Pankaj title: Electrohydro dynamics convection in dielectric rotating Oldroydian nanofluid in porous medium date: 2023-03-02 words: 5079 flesch: 63 summary: − W = ( D2 − a2 ) Θ − ( 1 + λ2 ∂ ∂t ) q D  , (12) 1 σ ∂φ ∂t + 1 ε q D.∇φ = 1 Le ∇ 2φ + NA Le ∇ 2T, (13) ∂T ∂t + q D.∇T = ∇2T + NB Le ∇φ.∇T + NA NB Le ∇T.∇T, (14) E = −∇ϕ, (15) K = [ 1 −γT (T0 − T1) ] , (16) where the non-dimensional parameters are λ1 = λαm σd2 is the Deborah number, λ2 = λ0αm σd2 is the Strain-Retardation time pa- rameter, Pr = µ ρ f αm is the Prandtl number, Dr = k1 d2 is the Darcy number, Va = εPr Dr is the Vadasz number, Le = αm DB is the Lewis number, Ra = ρ f gβdk1 keywords: arrangement; conductivity; convection; darcy; different; dimensional; distribution; effect; electric; equation; field; figure; free; heat; heavy; increase; journal; layer; media; medium; modified; nanofluid; nanoparticles; nig; non; number; oldroydian; phys; porous; rayleigh; sci; sharma; soc; stationary; system; thermal; transfer; values; variations; wave cache: jnsps-1231.pdf plain text: jnsps-1231.txt item: #37 of 247 id: jnsps-1244 author: Falk, Constantin; El Ghayed , Tarek ; van de Sand, Ron; Reiff-Stephan, Jörg title: A Data-Driven Approach Towards the Application of Reinforcement Learning Based HVAC Control date: 2023-02-24 words: 6108 flesch: 56 summary: White et al. indicated that a model is MDP if the transitions from one state to another depends only on the current state and are therefore independent of any previous states or agent actions [23]. Reinforcement learning approaches are dependant on a learn- ing environment. keywords: action; actual; agent; algorithm; approach; case; chiller; cold; condenser; consumption; control; controller; cooling; deep; difference; energy; environment; et al; evaporator; exchanger; exploitation; falk; feed; figure; flow; function; gain; heat; hvac; industrial; inlet; journal; learning; limits; model; nig; optimal; outside; phys; plant; policy; power; rate; real; refrigeration; reinforcement; reinforcement learning; results; reward; sci; set; simulated; simulation; soc; speed; state; step; storage; study; system; tei; temperature; thermal; time; value; warehouse; water; work cache: jnsps-1244.pdf plain text: jnsps-1244.txt item: #38 of 247 id: jnsps-1250 author: Anate, Essodossomondom ; Kata, N’Detigma ; Samah, Hodo-Abalo ; Maiga, Amadou Seidou title: Study of the passivation of defects in the perovskite cell: application to Sahelian climate conditions date: 2023-05-14 words: 2985 flesch: 56 summary: Sci. 5 (2023) 1222 3 Table 1: Characteristics of the simulated modules PV module base on : Passivated cell Cell with defects Real cell Number of cells 55 in series 55 in series 55 in series Efficiency (%) 27.87% 24.73% 17.9% Voc (V) 71.61 63.86 58.7 [17] B. Chen, P. N. Rudd, S. Yang, Y. Yuan & J. Huang, “Imperfections and their passivation in halide perovskite solar cells”, Chemical Society Re- views 48 (2019) 3842. keywords: acceptor; africa; anate; band; cell; cm−2; conditions; day; decrease; defects; effect; efficiency; figure; htl; interfaces; irradiance; journal; layer; module; neutral; nig; passivation; performance; perovskite; photovoltaic; phys; physical; ratio; real; results; saharan; sciences; season; simulation; soc; society; solar; study; sub; temperature; types; voc; wang cache: jnsps-1250.pdf plain text: jnsps-1250.txt item: #39 of 247 id: jnsps-1263 author: ADJASSA, Mahouton Justine Carine ; KOTO N'GOBI, Gabin ; DONNOU, Hagninou Elagnon Venance ; KOUCHADE, Clément Adéyèmi ; KOUNOUHEWA, Basile Bruno title: Generation of Electricity From a Hydraulic Turbine in the Djonou River (Benin) date: 2023-05-21 words: 6289 flesch: 67 summary: [41] for their part have examined different meth- ods of manufacturing Archimedean screw turbines such as the 3D printing method still in their early stages of development and additive manufacturing as having a relatively lower envi- ronmental impact than conventional manufacturing of turbine blades. [37] S. Simmons, G. Dellinger, A. A. Aliabadi & W. D. Lubitz, “Dynamic overflow leakage in Archimedes screw generator”, Proceedings of the Canadian Society for Mechanical Engineering International Congress 2021 CSME Congress Charlottetown PEI Canada (2021) 1. keywords: abomey; adjassa; angle; archimedean; archimedean screw; authors; benin; blades; calavi; conference; dellinger; design; device; djonou; efficiency; electrical; electricity; energy; engineering; et al; experimental; figure; flow; fluid; generator; geometric; height; hydraulic; hydro; inclination; international; journal; length; materials; maulana; mechanical; modeling; nig; number; optimal; order; parameters; performance; phys; pitch; power; production; radius; rate; ratio; renewable; research; river; rotation; scale; sci; sciences; screw; screw turbine; shaft; site; small; soc; speed; study; table; technology; trough; turbine; university; values; water; work cache: jnsps-1263.pdf plain text: jnsps-1263.txt item: #40 of 247 id: jnsps-1264 author: TOWANOU, Odilon Joseph ; Donnou, Hagninou Elagnon Venance ; N’Gobi, Gabin Koto; Leode, Augustin Enonsi; Kounouh´ewa, Basile title: Solar Energy Storage by Fuel Cell Technology at Abomey-Calavi (Benin) date: 2023-04-22 words: 5179 flesch: 61 summary: The very numerous works undertaken over the past decade for the production of electricity by hydrogen fuel cells bear witness to this. Today, several researchers and industrial companies are still working constantly, giving much more interest to hydrogen production in order to improve en- ergy storage’s performance. keywords: abomey; air; applications; authors; calavi; cell; current; des; efficiency; electrical; electricity; electricity production; electrolyser; energy; energy storage; et al; experiment; figure; fuel; fuel cell; function; gas; hydrogen; hydrogen production; increase; intensity; journal; low; materials; min; nig; order; phys; pipe; plates; power; production; renewable; results; review; sci; soc; solar; stainless; steel; storage; study; system; technologies; technology; time; towanou; values; voltage; volume; water; yield cache: jnsps-1264.pdf plain text: jnsps-1264.txt item: #41 of 247 id: jnsps-13 author: Eli, D.; Onimisi, M. Y.; Garba, S.; Ugbe, R. U.; Owolabi, J. A.; Ige, O. O.; Ibeh, G. J.; Muhammed, A. O. title: Simulation and Optimization of Lead-Based Perovskite Solar Cells with Cuprous Oxide as a P-type Inorganic Layer date: 2019-08-30 words: 5904 flesch: 61 summary: Influence of thickness of ETM and HTM Figure 6(A) is the plot of solar cell parameters; VOC , JS C , FF and PCE versus thickness of the ETM; T iO2. Sci. 1 (2019) 72–81 Journal of the Nigerian Society of Physical Sciences Original Research Simulation and Optimization of Lead-Based Perovskite Solar Cells with Cuprous Oxide as a P-type Inorganic Layer D. Elia,d,∗, M. Y. Onimisia, S. Garbab, R. U. Ugbea, J. A. Owolabia, O. O. Igea, G. J. Ibeha, A. O. Muhammedc aDepartment of Physics, Nigerian Defence Academy, Kaduna, Nigeria bDepartment of Chemistry, Nigerian Defence Academy, Kaduna, Nigeria cDepartment of Physics, Bayero University, Kano, Nigeria dDepartment of Physical Sciences, Greenfield University, Kaduna, Nigeria Abstract The hole transporting material (HTM) is responsible for selectively transporting holes and blocking electrons which also plays a crucial role in the efficiency and stability of perovskite solar cells (PSCs). keywords: absorber; affinity; band; carrier; cells; ch3; cm−3; concentration; cu2o; curves; defect; density; device; doping; efficient; electron; eli; energy; etm; figure; high; hole; htm; increases; influence; inorganic; interface; io2; jsc; kim; layer; lead; liu; macm−2; materials; nature; nig; parameters; pbi3; pce; performance; perovskite; perovskite solar; phys; psc; pscs; recombination; results; science; simulation; soc; solar; solar cells; table; thickness; type; values; variation; voc; wang; yang cache: jnsps-13.pdf plain text: jnsps-13.txt item: #42 of 247 id: jnsps-132 author: B M, Dyavappa title: Velocity distribution of 43Ca+ion cloud in the low temperature limit in a quadrupole Penning Trap date: 2021-02-25 words: 2158 flesch: 63 summary: The velocity distribution of 43Ca+ ions along axial direction, in radial plane and total velocity distribution due to resulting motion of both axial and radial motion of ions in low temperature limit in a Quadrupole Penning trap are presented here. The total probability density of velocity distribution in trapping region increases sharply up to √ mv2/2kBT = 1.4086 at ρ = 3.399 × 1032, decreases abruptly and remains almost a constant in low temperature limit as shown in Figure 5. keywords: axial; cloud; density; direction; distribution; dyavappa; energy; field; figure; ions; kbt; limit; low; penning; plane; probability; quadrupole; quantum; radial; temperature; total; trap; velocity cache: jnsps-132.pdf plain text: jnsps-132.txt item: #43 of 247 id: jnsps-133 author: C. O. Lawani ; Ibeha, G. J. ; Ige, Olumide; Danladi, Eli; Emmanuela, J. O. ; Ukwenya, A. J. ; Oyedare, P. O. title: Numerical Simulation of Copper Indium Gallium Diselenide Solar Cells Using One Dimensional SCAPS Software date: 2021-05-29 words: 5787 flesch: 62 summary: Sci. 3 (2021) 48–58 Journal of the Nigerian Society of Physical Sciences Numerical Simulation of Copper Indium Gallium Diselenide Solar Cells Using One Dimensional SCAPS Software C. O. Lawania, G. J. Ibeha, O. O. Igea, D. Elia,b,∗, J. O. Emmanuela,c, A. J. Ukwenyaa, P. O. Oyedared aDepartment of Physics, Nigerian Defence Academy, Kaduna, Nigeria bDepartment of Physical Sciences, Greenfield University, Kasarami, Kaduna, Nigeria cDepartment of Basic Science and General Studies, Federal College of Forestry Mechanization, Kaduna, Nigeria dDepartment of Science Laboratory Technology, Federal Polytechnic Ede, Osun State, Nigeria Abstract The effect of multivalent defect density, thickness of absorber and buffer layer thickness on the performance of CIGS solar cells were investigated systematically. J-V curve of CIGS solar cell with initial parameters. keywords: absorber; absorber layer; band; buffer; buffer layer; cells; charge; cigs; cigs solar; circuit; cm2; cm−3; concentration; current; decrease; defect; density; effect; efficiency; electron; energy; experimental; factor; figure; fill; gap; holes; in2s; increase; initial; journal; jsc; lawani; layer; layer thickness; material; multivalent; nig; number; numerical; observed; parameters; performance; photons; photovoltaic; phys; properties; quantum; recombination; sci; semiconductor; simulation; soc; solar; solar cells; table; thickness; values; voc; wavelength; work cache: jnsps-133.pdf plain text: jnsps-133.txt item: #44 of 247 id: jnsps-1350 author: Ahmad, Abdulaziz G.; Okechi, Nnamdi F.; Uche, David U.; Salaudeen, Abdulwasiu O. title: Numerical Simulation of Nonlinear and Non-Isothermal Liquid Chromatography for Studying Thermal Variations in Columns Packed with Core-Shell Particles date: 2023-04-24 words: 6575 flesch: 59 summary: DOI:10.46481/jnsps.2023.1350 Keywords: Non-isothermal chromatography, Non-linear isotherm, One-dimensional lumped kinetic model, High-resolution scheme Article History : Received: 15 January 2023 Received in revised form: 06 March 2023 Accepted for publication: 10 March 2023 Published: 24 April 2023 In contrast, a higher Pez,M value results in narrower peaks, which improves column performance. keywords: adsorption; ahmad; axial; chemical; chromatography; coefficient; column; component; concentration; conditions; core; dimensional; efficiency; elution; equations; figure; fraction; heat; high; hplc; initial; isothermal; journal; liquid; lkm; mass; mathematical; min; mobile; model; mol; nig; non; nonlinear; number; numerical; order; parameter; particles; performance; pez; phase; phys; plot; preparative; process; productivity; profiles; radius; rate; scheme; sci; shell; single; soc; solid; solute; symbol; table; temperature; time; transfer; tref; values; ζcut; ∆ha cache: jnsps-1350.pdf plain text: jnsps-1350.txt item: #45 of 247 id: jnsps-1364 author: Fuhnwi, Gerard Shu ; Agbaje, Janet O.; Oshinubi, Kayode; Peter, Olumuyiwa James title: An Empirical Study on Anomaly Detection Using Density-based and Representative-based Clustering Algorithms date: 2023-04-19 words: 8143 flesch: 66 summary: We also observe that DBSCAN performs very well on data sets with fewer number of data points. In this regard, density-based and representative-based clustering algo- rithms have been widely used in anomaly detection due to their ability to identify clusters of data points dissimilar to the ma- jority of the data. keywords: alarm; algorithm; anomalies; anomaly; best; better; cardio; center; class; clustering; clusters; coefficient; data; data set; dbscan; density; detection; different; empirical; evaluation; factor; false; fuhnwi; high; implementation; initialization; initialization.kcentre; initialization.uniform; instances; jaccard; labels; learning; low; means−−; measures; methods; nearest; nig; noise; normal; number; outliers; pairs; paper; parameters; phys; pima; points; rate; representative; results; run; sci; score; set; sets; shuttle; small; soc; table; techniques; time cache: jnsps-1364.pdf plain text: jnsps-1364.txt item: #46 of 247 id: jnsps-1366 author: Pushap Lata Sharma; Deepak Bains; Pankaj Thakur title: Thermal instability of rotating Jeffrey nanofluids in porous media with variable gravity date: 2023-05-20 words: 6358 flesch: 66 summary: [30] R. Chand & G. Rana, “On the onset of thermal convection in rotating nanofluid layer saturating a darcy–brinkman porous medium”, Interna- tional Journal of Heat and Mass Transfer 55 (2012) 5417. [41] S. M. Alex, P. R. Patil & K. Venkatakrishnan, “Variable gravity effects on thermal instability in a porous medium with internal heat source and inclined temperature gradient”, Fluid Dynamics Research 29 (2001) 1. keywords: boundary; chand; conditions; convection; darcy; destabilising; distinct; effect; equation; et al; figure; gravity; h(z; heat; impact; instability; international; jeffrey; journal; layer; media; medium; nanofluid; nanoparticles; nield; nig; non; number; parameter; phys; porous; rana; rayleigh; rd)c; results; rotation; sci; sharma; soc; stationary; tb(z; thermal; values; variable; yadav; δh(z cache: jnsps-1366.pdf plain text: jnsps-1366.txt item: #47 of 247 id: jnsps-1368 author: Issa, Kazeem; Olorunnisola, Steven Ademola; Aliu, Tajudeen; Adeniran Dauda, Adeshola title: Approximate solution of space fractional order diffusion equations by Gegenbauer collocation and compact finite difference scheme: Solution of space fractional diffusion equation date: 2023-05-22 words: 5741 flesch: 77 summary: Abstract In this paper, approximation of space fractional order diffusion equation are considered using compact finite difference technique to discretize the time derivative, which was then approximated via shifted Gegenbauer polynomials using zeros of (N − 1) degree shifted Gegenbauer polynomial as collocation points. Conclusion This paper studied space fractional order diffusion equation by proposing a new technique for finding the approximate so- lution using compact finite difference method to discretize the time derivative, then use shifted Gegenbauer polynomials as ap- proximating polynomial. keywords: a(xn; absolute; approximate; boundary; caputo; chebyshev; compact; derivative; difference; differential; diffusion; equations; errors; example; figure; finite; fractional; gegenbauer; issa; literature; method; model; m−1; n3,1; nig; numerical; order; phys; polynomials; results; sci; section; sfodes; shifted; soc; solution; space; table; time; u(x; values; ω(t; ∂xw cache: jnsps-1368.pdf plain text: jnsps-1368.txt item: #48 of 247 id: jnsps-1371 author: Hadisaputra, Saprizal; Savalas, Lalu Rudyat Telly title: Corrosion Inhibition Properties of Lawsone Derivatives againts Mild Steel: A Theoretical Study date: 2023-06-14 words: 5621 flesch: 64 summary: Jalan Majapahit 62, Mataram, 83125, Indonesia Abstract Theoretical studies have been carried out using DFT, ab initio MP2 and Monte Carlo (MC) simulations of corrosion inhibitors from lawsone derivatives against carbon steel. Plant extracts have reportedly been used as corrosion inhibitors that are safe for the environment [4]. keywords: /100h2o; a. a.; acid; adsorption; atoms; b3lyp; carlo; characteristics; chemical; chemistry; corrosion; corrosion inhibitors; density; derivatives; dft; efficiency; ehomo; electrons; elumo; energy; experimental; figure; fukui; functional; hadisaputra; hydrochloric; inhibition; inhibitors; initio; ionization; journal; lawsone; media; metal; mild; molecular; molecules; monte; mp2; nh2; nig; no2; o11; o12; o13; och3; organic; organic inhibitors; phys; physical; potential; quantum; results; savalas; sci; science; simulation; soc; society; steel; structure; studies; study; surface; table; theoretical; theory; transfer; value cache: jnsps-1371.pdf plain text: jnsps-1371.txt item: #49 of 247 id: jnsps-1386 author: Adindu, Chinonso; Nwanonenyi, Simeon; Ikpa, Chinyere title: Experimental and computational studies of the corrosion inhibitive effects of Zingiber officinale rhizomes on mild steel corrosion in acidic solutions date: 2023-08-12 words: 6658 flesch: 43 summary: This study is aimed at investigating the corrosion inhibitive effects of ZO ethanol extract on mild steel corrosion in acidic solutions using experimental and theoretical studies respectively. The Nyquist and Bode plots re- spectively for mild steel corrosion in 1 M HCl and 0.5 M H2SO4 acid solution respectively are presented in Figures 5 (a & b) and 6 (a & b) respectively while the electrochemical parameters from the EIS experiments are presented in Table 2. keywords: absolute; acid; acidic; active; adindu; adsorption; analysis; anodic; carbon; cathodic; charge; chemistry; compounds; computational; constituents; corrosion; corrosion inhibition; density; different; doi; dynamic; effects; eis; electrochemical; electrode; electron; energy; environment; ester; experimental; extract; figure; ftir; functional; gas; ginger; groups; h2o; h2so4; h3o+; hcl; high; imo; impedance; inhibitor; interaction; international; journal; materials; metal; mild; mild steel; molecular; molecule; nig; officinale; oguzie; parameters; pdp; phys; plant; polarization; potential; prepared; presence; protection; quantum; rct; research; results; sci; science; simulation; soc; solution; spectroscopy; state; steel; steel corrosion; structures; studies; study; surface; table; theoretical; transfer; values; zingiber cache: jnsps-1386.pdf plain text: jnsps-1386.txt item: #50 of 247 id: jnsps-1389 author: Ajao, Saheed; Olopade, Isaac; Akinwumi, Titilayo; Adewale, Sunday; Adesanya, Adelani title: Understanding the Transmission Dynamics and Control of HIV Infection: A Mathematical Model Approach date: 2023-04-19 words: 7541 flesch: 71 summary: Using the Goh-Volterra type of Lyapunov function, we have M = S − S ∗∗ − S ∗∗ln S S ∗∗ + L − L∗∗ − L∗∗ln L L∗∗ + C ( HU − H ∗∗ U − H ∗∗ U ln HU H∗∗U ) Sci. 5 (2023) 1389 8 Taking the derivative of (29), we have Ṁ = Ṡ − S ∗∗ Ṡ S + keywords: aids; ajao; art; available; basic; bifurcation; cases; children; class; classes; data; disease; dynamics; endemic; equilibrium; figure; fraction; free; global; h ∗∗; health; hiv; h∗∗d; h∗∗u; h∗∗w; individuals; infected; infection; initial; lh∗∗u; l∗∗; l∗∗hu; mathematical; model; nig; nigeria; number; people; phys; population; positive; rate; reproduction; result; sci; soc; stability; stable; study; t2(t1t3t4; t5η3; time(years; transmission; treatment; unity; values; xt2; − �; −φy; −φyγw; ∗∗ d; ∗∗ w; ∗∗ − cache: jnsps-1389.pdf plain text: jnsps-1389.txt item: #51 of 247 id: jnsps-139 author: W. A. Yahya title: Alpha decay half-lives of 171-189Hg isotopes using Modified Gamow-like model and temperature dependent proximity potential date: 2020-11-15 words: 4731 flesch: 75 summary: DOI:10.46481/jnsps.2020.139 Keywords: Alpha decay, half-life, Gamow-like model, proximity potential, Radioactive decay Article History : Received: 26 September 2020 Received in revised form: 04 November 2020 Accepted for publication: 05 November 2020 [27] S. S. Hosseini, H. Hassanabadi, D. T. Akrawy & A. H. Ahmed, “Theo- retical studies on alpha decay half-lives of astatine isotopes”, Int. keywords: alpha; calculated; cluster; coulomb; cppm; daughter; decay; decay half; dependent; deviation; drop; experimental; figure; gamow; half; heavy; isotopes; like; like model; liquid; lives; mass; mglm2; model; modified; neutron; new; nuclear; nuclei; nucleus; number; particle; phys; potential; potential model; proximity; proximity potential; rev; standard; temperature; values cache: jnsps-139.pdf plain text: jnsps-139.txt item: #52 of 247 id: jnsps-1392 author: Olorunfunmi, Sunday; Bahini, Armand; Olatinwo, Adenike title: Theoretical Study on 10C Elastic Scattering Cross Sections Using Different Cluster Density Distributions and Different Potentials date: 2023-05-21 words: 6588 flesch: 65 summary: + 27Al at inci- dent energy 29.1 MeV are investigated for 6Be + α, 9B + p, 8Be + p + p, and α + α + p + p cluster densities of 10Ca, and the results are shown in Figure 2. Method of calculation The first step in calculating elastic scattering cross section is to obtain the complex total optical potential. keywords: 10c; 208pb; 27al; 58ni; 6be; 6be+α; 8be; calculations; cluster; cluster density; configurations; cross; data; density; different; distribution; effective; elastic; energy; experimental; figure; folding; imaginary; incident; interactions; jlm; m3y; mev; model; nig; nuclei; nucleus; olorunfunmi; optical; p cluster; phys; potential; projectile; reaction; real; ref; results; rev; scattering; sci; sections; soc; structure; study; table; target; theoretical; values cache: jnsps-1392.pdf plain text: jnsps-1392.txt item: #53 of 247 id: jnsps-14 author: Latunde, Tolulope; Oluwaseun Richard, Joseph; Esan, Opeyemi Odunayo; Dare, Damilola Deborah title: Sensitivity of Parameters in the Approach of Linear Programming to a Transportation Problem date: 2019-11-12 words: 4127 flesch: 69 summary: Sci. 1 (2019) 116–121 Journal of the Nigerian Society of Physical Sciences Original Research Sensitivity of Parameters in the Approach of Linear Programming to a Transportation Problem Tolulope Latunde∗, Joseph Oluwaseun Richard, Opeyemi Odunayo Esan, Damilola Deborah Dare Department of Mathematics, Federal University, Oye-Ekiti, Nigeria Abstract Linear programming has served as a great tool in dealing with transportation problems to make a positive difference in economic and social activity. Keywords: Linear Programming, transportation problem, parameters, sensitivity Article History : Received: 26 September 2019 Received in revised form: 26 October 2019 Accepted for publication: 29 October 2019 keywords: analysis; buses; cost; data; day; destination; different; ekiti; fuel; ijebu; income; latunde; linear; method; model; number; nurtw; optimal; parameters; park; parking; passengers; problem; programming; road; routes; sango; sensitivity; service; solution; table; time; total; transportation; transportation problem; trip; vehicles; work; years cache: jnsps-14.pdf plain text: jnsps-14.txt item: #54 of 247 id: jnsps-140 author: Olaiya, Olumide O.; Azeez, Rasaq A.; Modebei, Mark I. title: Efficient Hybrid Block Method For The Numerical Solution Of Second-order Partial Differential Problems via the Method of Lines date: 2021-02-25 words: 6886 flesch: 81 summary: Authors who have worked extensively on numerical methods for approximation of solution of a differential equation include but no limited to Brugnano and Trigiante [1], Onumanyi et al. The analysis of the new methods showed that all satisfy the properties of numerical methods for the solution of differen- tial equations. keywords: 26–37; 6xn+; block; boundary; characteristic; differential; equations; error; exact; example; fn+; fn+1; fn+2; following; form; h2bm2; hybrid; initial; jator; journal; mathematics; matrix; method; ngwane; nig; numerical; o[h]10; olaiya; order; p+2=; pde; phys; points; problems; sci; second; soc; solution; system; table; value; y(x; yn+; yn+1; y′n+ cache: jnsps-140.pdf plain text: jnsps-140.txt item: #55 of 247 id: jnsps-141 author: Babaji Muhammad, Idris; Usaini, Salisu title: Dynamics of Toxoplasmosis Disease in Cats population with vaccination date: 2021-02-18 words: 6195 flesch: 70 summary: S − S e [14] K. Sornsong, S. Naowarat & P. Thongjaem, “Mathematical model for the dynamics transmission of rabies with control measures”, Austr. keywords: + βoes; analysis; cats; death; disease; doi; dynamics; e −; endemic; environment; equilibrium; gondii; human; infected; infection; mathematical; model; nig; number; numerical; oocysts; parameter; phys; population; rate; recovered; reproduction; s e; s s; sci; sensitivity; soc; spread; stability; stable; susceptible; system; theorem; threshold; toxoplasma; toxoplasmosis; transmission; usaini; vaccinated; vaccination; values cache: jnsps-141.pdf plain text: jnsps-141.txt item: #56 of 247 id: jnsps-1427 author: A, Thirumalai; K, Muthunagai; Agarwal, Ritu title: Pre-functions and Extended pre-functions of Complex Variables date: 2023-05-21 words: 3845 flesch: 82 summary: Relation between pre-circular and pre- exponential func- tions Using Euler’s formula, the relation between circular and ex- ponential functions, we arrive at the following: pcos(z,β) = (−i)β pexp(iz,β) + (i)β pexp(−iz,β) 2 − (i)β + (−i)β 2 + 1 psin(z,β) = (−i)β pexp(iz,β) − (i)β pexp(−iz,β) 2i − (−i)β − (i)β 2i . ptan(z,β) = i (−i)β − (i)β − (−i)β pexp(iz,β) + (i)β pexp(−iz,β) (−i)β pexp(iz,β) + (i)β pexp(−iz,β) − (i)β − (−i)β + 2 psec(z,β) = 2 (−i)β pexp(iz,β) + (i)β pexp(−iz,β) − (i)β − (−i)β + 2 Table 2: Expressions for the pre-hyperbolic functions S.No (z,β) pcosh(z,β) psinh(z,β) 1 (z, 0) cosh(z) sinh(z) 2 (z,1) sinh z − z + 1 cosh z − 1 3 (z,2) cosh keywords: complex; differential; equations; exponential; extended; figure; functions; hyperbolic; i)β; m3,1(z; n +; n=1; nig; pcos(z; pexp(iz; pexp(z; phys; pre; psin(z; sci; series; soc; thirumalai; trigonometric; variable; γ(4; −1)β; ∣∣∣∣∣ cache: jnsps-1427.pdf plain text: jnsps-1427.txt item: #57 of 247 id: jnsps-1435 author: Sanni, Kehinde; Adediran, Adeshola; Tajudeen, Aliu title: Numerical investigation of nonlinear radiative flux of non-Newtonian MHD fluid induced by nonlinear driven multi-physical curved mechanism with variable magnetic field date: 2023-06-11 words: 7247 flesch: 72 summary: However, fluids flow accompanied by thermal energy over stretchable materials have important applications in many in- dustrial processes which are not limited to- cooling of metallic sheets, liquified and plastic film, glass blowing, paper produc- tion, drawing of plastic film, glass fiber, food processing, poly- mer sheet extrusion from dye among several others. At- tentions have been given towards heat flow and thermal en- ergy exchange through a physical system that involve heat mechanisms like convection, conduction as well as radiation. keywords: analysis; boundary; conditions; convection; cross; curvature; curved; effects; energy; eqs; equations; error; et al; field; figure; flow; fluid; flux; force; hayat; heat; heating; h′′; i−1; i−1/2; k i−1; khan; law; layer; lorentz; magnetic; mhd; model; n+1; nanofluid; newtonian; nig; nonlinear; number; numerical; parameters; phys; physical; point; power; present; problem; profile; r+r; radiation; radiative; results; sanni; sci; sheet; soc; stagnation; stretching; surface; temperature; thermal; transfer; variable; velocity; viscous; |(e3; γ)2 cache: jnsps-1435.pdf plain text: jnsps-1435.txt item: #58 of 247 id: jnsps-1437 author: Yahya, Waheed B.; Bello, Yusuf; AbdulRaheem, Abdulrazaq title: Model Fitness and Predictive Accuracy in Linear Mixed-Effects Models with Latent Clusters date: 2023-06-11 words: 5150 flesch: 65 summary: doi.org/10.1007/s10182-019- 00359-z [14] A. F. Zuur, E. N. Ieno, N.J. Walker, A. A. Saveliev & G.M. Smith, Mixed effects models and extensions in Ecology with R, Springer Sci- ence+Business Media New York, 2009. PLMM DLMM LM PLMM DLMM LM PLMM DLMM 40 915.9 806.2 720.0 940.2 834.0 747.8 1.609 0.965 0.735 41 847.5 798.0 659.4 871.4 825.2 686.6 1.568 1.117 0.677 42 1057.1 971.1 772.1 1082.3 999.9 800.9 1.670 1.144 0.671 43 1074.0 963.8 799.4 1099.5 993.0 828.6 1.564 1.011 0.663 43b 1084.2 991.8 827.6 1109.5 1020.7 856.5 1.694 1.139 0.720 44 1143.8 1048.0 860.0 1169.5 1077.5 889.5 1.675 1.137 0.711 44b 1034.4 943.0 777.4 1059.4 971.5 805.9 1.696 1.118 0.693 44c 1138.1 1041.8 848.7 1163.8 1071.0 878.1 1.681 1.136 0.696 45 1052.5 979.8 816.0 1077.5 1008.4 844.5 1.743 1.198 0.738 45b 1154.6 1060.3 866.4 1180.4 1089.8 895.9 1.672 1.141 0.699 45c 1094.9 1011.3 826.9 1120.2 1040.3 855.9 1.715 1.174 0.709 46 1064.9 993.7 818.4 1090.0 1022.4 847.1 1.732 1.205 0.723 46b 1156.4 1060.9 868.5 1182.2 1090.4 898.0 1.678 1.140 0.701 46c 1150.6 1056.9 875.8 1176.3 1086.3 905.3 1.683 1.145 0.714 47 1168.8 1073.1 882.0 1194.7 1102.7 911.6 1.669 1.135 0.702 Mean 1075.8 986.6 814.6 1101.1 1015.5 843.5 1.670 1.127 0.704 Figure 5. keywords: accuracy; aic; analysis; assessment; bic; clustering; clusters; criteria; criterion; data; distance; dlmm; dual; effects; fitness; groups; higher; icc; increase; information; intercept; l(y; latent; linear; maic; marginal; mixed; model; multivariate; nig; number; observations; phys; plmm; plmm dlmm; predictive; primal; random; rmse; sci; significant; slope; smaller; soc; table; values; variance; σ2e; σ2υ; σ2υ σ; σ2υ σ2υ cache: jnsps-1437.pdf plain text: jnsps-1437.txt item: #59 of 247 id: jnsps-1438 author: Labulo, A. H.; Terna, Augustine; Oladayo, O. F. ; brahim, H. I; Tanko, N. S. ; Ashonibare, R. A. ; Opeyemi, J. D.; Tywabi-Ngeva, Z. title: Photocatalytic and antibacterial activities of green-mediated Khaya senegalensis-silver nanoparticles and oxidized carbon nanotubes date: 2023-06-21 words: 7291 flesch: 45 summary: [35] A. Rana, S. M. S. Jilani & K. Alhooshani, “Water Quality Characteriza- tion Using ASTM Methods in an Undergraduate Advanced Instrumental Analysis Laboratory Course”, Journal of Chemical Education, 98 (2021) 2919. [7] M. Y. Tahir, A. Ahmad, A. A. Alothman, M. S. S. Mushab & S. Ali, “Green Synthesis of Silver Nanoparticles Using Thespesia populnea Bark Extract for Efficient Removal of Methylene Blue ( MB ) Degradation via Photocatalysis with Antimicrobial Activity and for Anticancer Activity 202 (2022) 74. keywords: a. a.; a. h.; absorbance; absorption; acid; activities; activity; agnps; analysis; antibacterial; antibacterial activity; antibiotics; antimicrobial; applications; aqueous; aureus; average; bio; capping; carbon; carbon nanotubes; cell; change; characterization; chemistry; cm-1; coli; color; compounds; decolourization; degradation; delivery; diffraction; drug; effective; effectiveness; effects; efficiency; electron; environmental; evaluation; extract; figure; ftir; gold; gram; green; green synthesis; groups; high; industrial; journal; khan; khaya; labulo; leaf; leaves; materials; metal; method; multi; nanoparticles; nanotubes; negative; nig; nigeria; ocnts; orange; peaks; photocatalytic; phys; physical; plant; positive; present; ray; reduced; reduction; research; results; sci; science; sem; senegalensis; sensitive; shape; silver; silver nanoparticles; size; soc; spectra; spectroscopy; spherical; staphylococcus; study; surface; susceptibility; synthesis; tem; total; treatment; university; visible; walled; waste; wastewater; water; xrd cache: jnsps-1438.pdf plain text: jnsps-1438.txt item: #60 of 247 id: jnsps-1453 author: Almutairi, Dalal Khalid; Abdoon, Mohamed A.; Salih Yousuf Mohamed Salih; Shahinaz A.Elsamani; Guma, Fathelrhman EL; Berir, Mohammed title: Modeling and Analysis of a Fractional Visceral Leishmaniosis with Caputo and Caputo–Fabrizio derivatives date: 2023-07-26 words: 3414 flesch: 62 summary: (9) Figure 1: Systems of fractional orders model for α=0.99. Figure 2: Systems of fractional orders model for α=1 (First part) keywords: abdoon; abmiv; analysis; applications; berir; caputo; day−1; derivative; differential; equations; equilibrium; fabrizio; fractional; infected; journal; leishmaniasis; mathematics; model; nonlinear; numerical; order; population; rate; sci; sudan; susceptible; treatment; visceral; α t; −δih cache: jnsps-1453.pdf plain text: jnsps-1453.txt item: #61 of 247 id: jnsps-1464 author: Guma, Fathelrhman EL; Badawy, Ossama M.; Berir, Mohammed ; Abdoon, Mohamed A. title: Numerical Analysis of Fractional-Order Dynamic Dengue Disease Epidemic in Sudan date: 2023-05-28 words: 3732 flesch: 65 summary: The Caputo- derivative to the fractional model Introducing the notion of fractional derivative in the sense of Riemann-Liouville to reformulate the dynamics of the clas- sical model (9) in terms of fractional derivatives, we apply the Caputo derivative to the dengue fever model (9). [8] S. Fadugba, “Solution of fractional order equations in the domain of the Mellin transform” , Journal of the Nigerian Society Of Physical Sciences 1 (2019) 138 keywords: abdoon; analysis; bβmh; caputo; definition; dengue; derivative; differential; disease; equations; equilibrium; fever; figure; fractional; function; guma; human; infected; infectious; journal; method; model; mosquitoes; number; numerical; order; outbreak; parameters; phys; size; soc; stability; sudan; susceptible; system; t j; time; values; y(t; θ2s cache: jnsps-1464.pdf plain text: jnsps-1464.txt item: #62 of 247 id: jnsps-148 author: Adamu, Jamilu; B. M. Abdulhamid; D. T. Gbande; A. S. Halliru title: Simple motion pursuit differential game problem of many players with integral and geometric constraints on controls function. date: 2021-02-18 words: 3474 flesch: 76 summary: DOI:10.46481/jnsps.2021.148 Keywords: Differential game, pursuer, evader, geometric constraint, integral constraint, Hilbert space Article History : Received: 01 January 2021 Received in revised form: 28 January 2021 Accepted for publication: 29 January 2021 Published: 27 February 2021 c©2021 Journal of the Nigerian Society of Physical Sciences. Introduction In view of the extensive literature on differential games of several player’s with the control functions subjected to either geometric, integral or both constraints. keywords: admissible; constraints; control; differential; equations; evader; functions; game; hilbert; ibragimov; integral; journal; mathematics; motion; order; players; problem; pursuers; pursuit; simple; space; sufficient; y(θ; ρ2j; ∣∣∣∣∣∣ cache: jnsps-148.pdf plain text: jnsps-148.txt item: #63 of 247 id: jnsps-149 author: A. Abdulrahim; M. D Shehu; E Yisa; Z. A. Ishaq title: Mathematical Models and Comparative Analysis for Rice and Soya Bean Irrigation Crop Water Needs: A Case Study of Bida Basin Niger State, Nigeria date: 2021-11-29 words: 3812 flesch: 58 summary: The results for the computational method with the size of Land for irrigation shows that there is an increase in crop water need for the crops than the results of CROPWAT 8.0 software developed by the Food and Agriculture Organization (F.A. O) in which the size for the land is not considered. [7] the understanding of crop water need becomes necessary, as it enables efficient use of water and bet- ter irrigation practices like scheduling as the supply of water through rainfall is limited in these areas. keywords: agriculture; aquifer; area; basin; bida; coefficient; computational; constant; crop; crop water; cropwat; data; density; equation; et0; etcwn; evapotranspiration; f.a.o; food; irrigation; journal; land; mathematical; method; need; nill; pressure; rainfall; requirement; results; size; software; soya; study; vapour; water; − ed cache: jnsps-149.pdf plain text: jnsps-149.txt item: #64 of 247 id: jnsps-150 author: Obarhua, Friday; Adegboro, Oluwasemire John title: An Order Four Continuous Numerical Method for Solving General Second Order Ordinary Differential Equations date: 2021-02-25 words: 3546 flesch: 71 summary: Among the first methods developed are first derivative methods that are imple- mented in predictor-corrector mode, and Taylor series expan- 42 Obarhua Adegboro / J. Nig. It is well con- ceived that this type of equation can either be solved directly or solved by reducing to system of first order differential equa- tions before applying different methods available to solve the resulting system of first order ODEs Chan et al. keywords: base; constant; continuous; derivative; differential; equations; error; fn+1; fn+2; fn+3; hybrid; initial; interval; kayode; linear; method; multistep; new; numerical; obarhua; order; ordinary; problem; results; sci; second; solution; stability; system; table; value; y(x cache: jnsps-150.pdf plain text: jnsps-150.txt item: #65 of 247 id: jnsps-1512 author: AL-Ali, Suha Ibrahim Salih; AL-Awsi, Nihad Jalal Kadhem title: Simulation of the Movement of Groundwater in an Aquifer date: 2023-06-22 words: 5067 flesch: 69 summary: [( k L ) π (y − 1) ] sin [( k L ) πk ] .(12) and equation ω = (1 −ψ) π cosh [( k L ) π (y − 1) ] sin [( k L ) πx ] .(14) keywords: ali; boundary; coastal; conditions; cosh; density; depth; equation; flow; fluid; following; fourier; free; freshwater; function; ghyben; green; groundwater; impact; interface; intrusion; island; journal; k l; layers; lens; linear; plane; point; pressure; problem; rate; ratio; research; saltwater; se1; series; sin; solution; study; surface; tub cache: jnsps-1512.pdf plain text: jnsps-1512.txt item: #66 of 247 id: jnsps-1514 author: Alaba, Oluwayemisi Oyeronke; Kibria, B. M. Golam title: The Efficiency of the K-L Estimator for the Seemingly Unrelated Regression Model: Simulation and Application date: 2023-06-14 words: 5831 flesch: 66 summary: ρxi x j K LS UR RFGLS RS UR K LS UR RFGLS RS UR K LS UR RFGLS RS UR 0.0 9.7560 36.2392 256.4695 716.2386 35.4935 406.7923 12.0147 40.1432 308.325 0.1 6.4118 36.2199 459.8962 10.6846 37.8609 658.1879 12.6002 38.8413 253.003 0.2 7.7878 36.0814 193.1198 9.9320 39.0815 1772.816 739.9870 42.2980 171.349 0.3 14.6262 39.5822 284.7212 11.7001 40.6640 251.5625 27.9862 43.0574 692.950 0.4 16.2656 39.2694 248.8817 68.8660 42.2592 860.8801 21.2453 45.0407 477.386 0.5 12.6930 42.5478 2629.349 20.1253 45.4033 22608.84 25.9884 47.7564 4292.16 0.6 37.4753 43.3222 286.5887 78.1266 47.4747 252.3527 76.0018 51.3518 581.977 0.7 91.8338 48.2507 769.2762 186.599 53.0107 1751.206 12291.26 57.8010 7708.11 0.8 408.0553 57.7729 6626.982 482.442 65.6280 94973.63 7459.204 72.5054 1255.63 0.9 27135.45 82.4109 3004.294 8687.57 96.2975 18763.57 98272.26 96.1662 2682.17 Table 7. ρxi x j K LS UR RFGLS RS UR K LS UR RFGLS RS UR K LS UR RFGLS RS UR 0.0 2.1482 33.8490 33.4394 2.58122 33.6536 32.9963 3.0486 34.1725 33.4501 0.1 2.4351 29.8788 47.1569 2.83488 30.7532 29.9543 3.3416 31.2885 32.5218 0.2 2.2597 34.6346 33.5944 3.1033 31.2482 30.7619 3.5688 32.5834 31.1876 0.3 2.9817 35.3758 34.6432 3.5219 36.6019 35.7699 4.0414 36.7851 35.7306 0.4 3.4258 32.9304 32.1480 4.0364 33.0953 32.6963 4.6313 33.6982 48.0887 0.5 4.1175 37.4169 36.4355 4.7903 34.6699 35.0898 5.5344 34.1078 1134.971 0.6 5.0357 35.1816 266.3296 5.9218 35.9237 35.6257 7.0024 36.8212 38.8586 0.7 6.8262 37.1196 504.2674 8.0604 38.0785 683.5997 9.21488 39.7283 2209.564 0.8 12.1846 39.4336 26492.285 13.0759 41.5627 775.9910 16.8529 43.1572 330.2718 0.9 23.4235 52.9490 1302.4404 36.8351 56.4241 6609.2648 44.5576 57.7298 2350.237 for ρεM = {0.0, 0.1, 0.2, · · · , 0.7}. keywords: alaba; correlation; different; efficiency; equations; error; estimator; explanatory; generalized; j k; journal; k ls; kibria; kλ−1; methods; model; multicollinearity; nig; phys; regression; rfgls rs; ridge; rs ur; sci; simulation; soc; squares; study; sur; table; test; tmse; unrelated; ur estimator; ur k; ur rfgls; values; variables; ρxi; ρεm cache: jnsps-1514.pdf plain text: jnsps-1514.txt item: #67 of 247 id: jnsps-157 author: J. Damisa; J. O. Emegha; I. L. Ikhioya title: Deposition Time induced Structural and Optical Properties of Lead Tin Sulphide Thin Films date: 2021-11-29 words: 2796 flesch: 55 summary: Sci. 3 (2021) 455–458 Journal of the Nigerian Society of Physical Sciences Deposition Time induced Structural and Optical Properties of Lead Tin Sulphide Thin Films J. Damisaa,∗, J.O. Emeghaa, I.L. Ikhioyab aDepartment of Physics, University of Benin, Benin City, Edo State, Nigeria bDepartment of Physics and Astronomy, University of Nigeria, Nsukka, Enugu State, Nigeria Abstract Lead tin sulphide (Pb-Sn-S) thin films (TFs) were deposited on fluorine-doped tin oxide (FTO) substrates via the electrochemical deposition process using lead (II) nitrate DOI:10.46481/jnsps.2021.157 Keywords: Thin films, XRD, band gap, Pb-Sn-S, refractive index, absorption coefficient Article History : Received: 19 January 2021 Received in revised form: 17 September 2021 Accepted for publication: 18 September 2021 keywords: absorbance; absorption; band; coefficient; deposition; effect; electrochemical; energy; figure; films; gap; index; journal; lead; materials; observed; optical; physics; preparation; prepared; properties; refractive; science; sns; solar; structural; study; sulphide; system; table; technique; tfs; thin; thin films; time; tin; values; xrd cache: jnsps-157.pdf plain text: jnsps-157.txt item: #68 of 247 id: jnsps-1576 author: Khan, Muluh Emmanuel; Elum, Chijioke Ezekiel; Ijeomah, Augustina Onyebuchi; Ameji, hilip John; Osigbemhe, Izuagbe Gilbert; Emmanuel Etim (PhD); Anyam, John Veshima; Abel, Alexander; Agber, CyprianTernenge title: Isolation, Characterization, Antimicrobial and Theoretical Investigation of Some Bioactive Compounds Obtained from the Bulbs of Calotropisprocera date: 2023-08-01 words: 7086 flesch: 54 summary: [11] N. Tour, & G. Talele, “Anti-inflammatory and gastromuscal protective effects of Calotropis procera (Asclepiadaceae) stem bark”, J. Nat. Med. 65 (2011) 598, doi:10-1007/s11418-011-0522-1. [12] H. B. Fernandes, D. L. Machado, J. M. Dias, T. V. Brito, J. A. Batista, R. O. Silva, A. Pereira, G. P. Ferreira, M. V. Ramos, J. V. R. Medeiros, K. S. Aragão, R. A. Ribeiro, A. L. R. Barbosa, & J. S. Oliveira, “Laticifer proteins from Plumeria pudica inhibit the inflammatory and nociceptive responses by decreasing the action of inflammatory mediators and pro- inflammatory cytokines”, Revista Brasileira de Farmacognosia 25 (2015) 269. [8] R. A. Maplestone, M. J. Stone, & D. H. Williams, “The evolutionary role of secondary metabolites- keywords: -amyrin; acetate; activities; activity; admet; anti; antimicrobial; atom; aureus; bbb; bioactive; bioavailability; bond; bulbs; calotropisprocera; candida; candidates; chemistry; coli; compounds; concentration; crude; data; department; development; discovery; dna; docking; drug; escherichia; experimental; extracts; federal; figure; gyrase; hmbc; hsqc; hydrogen; inflammatory; inhibition; j. nig; journal; khan; ligands; literature; mbc; medicinal; medium; metabolites; methanol; methyl; mfc; minimum; molecular; molecules; natural; nig; nigeria; nmr; number; oral; pharmacokinetic; phys; phytochemicals; plant; ppm; presence; products; profiles; properties; protons; quaternary; resistant; results; rule; salmonella; sci; sciences; screening; secondary; silico; soc; spectrum; standard; staphylococcus; state; table; taraxasterol; target; test; therapeutic; toxicity; typhi; university; δ ppm cache: jnsps-1576.pdf plain text: jnsps-1576.txt item: #69 of 247 id: jnsps-159 author: Dawodu, Kazeem adebowale title: Extension of ADMMAlgorithmin Solving Optimal Control Model Governed by Partial Differential Equation date: 2021-05-29 words: 7602 flesch: 81 summary: f ′′x (xi , t j +1) 2 , ' 1 2 [ fi −1, j − 2 fi , j + fi +1, j δ2 + fi −1, j +1 − 2 fi , j +1 + fi +1, j +1 δ2 ] (5) where fi , j ' f (xi , t j ) and uk , j ' uk (t j ) for i = 0, 1, 2, . . . , n, j = 0, 1, 2, . . . , N −1 and k = 1, 2. For j = N − 1; −θ f1,N −1 −θ f1,N + 2(θ− 1) f2,N −1 + 2(θ+ 1) f2,N −θ f3,N −1 −θ f3,N = 0 for 0 ≤ j ≤ keywords: admm; algorithm; constraint; control; convergence; convex; dawodu; discretization; discretized; dual; effects; eqn; eqns; equation; figure; function; h2(y; iterations; j +1; k+1; matrix; method; min; model; multipliers; nig; number; objective; optimal; optimization; parameter; pde; penalty; phys; problem; relaxation; results; sci; size; soc; sparsity; step; t j; table; temperature; time; tol; tolerance; update; variables; yields cache: jnsps-159.pdf plain text: jnsps-159.txt item: #70 of 247 id: jnsps-16 author: Nwankwo, Wilson; Ukhurebor, Kingsley title: Investigating the Performance of Point to Multipoint Microwave Connectivity across Undulating Landscape during Rainfall date: 2019-10-14 words: 5807 flesch: 58 summary: Wireless networks have some constraints to a wider option in enterprise network design and implementation. In the area of communication, there is relatively a heavy pres- ence of mobile network base stations which have given rise to increased growth in the use of the Internet. keywords: analysis; area; attenuation; base; base station; characteristics; communication; conditions; connectivity; control; data; days; design; distribution; edo; effects; fading; figure; frequency; ghz; high; international; iyamho; journal; level; losses; microwave; minutes; mobile; multipoint; network; nig; nigeria; node; nwankwo; packets; performance; period; phys; physical; point; propagation; radio; rainfall; received; relationship; remote; remote stations; research; results; sci; science; sensor; series; signal; soc; station; study; system; table; technology; time; trees; ukhurebor; undulating; university; variables; vegetation; weather; wind; wireless cache: jnsps-16.pdf plain text: jnsps-16.txt item: #71 of 247 id: jnsps-160 author: L. O. Animasahun; B. A. Taleatu; S. A. Adewinbi; H. S. Bolarinwa; A. Y. Fasasi title: Synthesis of SnO2/CuO/SnO2 Multi-layered Structure for Photoabsorption: Compositional and Some Interfacial Structural Studies date: 2021-05-29 words: 5228 flesch: 54 summary: It is also capable of measuring quantitatively the interfacial mixing in multi-layered films. [35] L. O. Animasahun, B. A. Taleatu, H. S. Bolarinwa, A. Y. Fasasi, M. A. Eleruja & E. I. Obinajunwa, “Spray Pyrolysis deposition and character- izations of dielectric SnO2 thin films”. keywords: absorbing; absorption; analysis; animasahun; annealed; annealing; applications; atoms; bandgap; chemistry; composition; copper; cuo; diffusion; effect; energy; figure; films; formation; gas; heat; heterostructures; high; increase; interfacial; journal; layered; layers; light; materials; metal; mixed; mixing; multi; nig; observed; optical; oxide; photocatalytic; photodegradation; photon; phys; physics; pollutants; properties; pyrolysis; rbs; result; sample; sci; sensing; sensors; sno2; soc; solutions; spray; structure; substrate; surface; table; temperature; thickness; thin; tin; transmittance; treatment; university; urbach; values; visible cache: jnsps-160.pdf plain text: jnsps-160.txt item: #72 of 247 id: jnsps-162 author: Aladodo, Shehu Sharafadeen; Akoshile, Clement Olufemi; Otu, J. O. title: A Review of Evidence of Aerosol Transmission of SARS-CoV-2 Particles date: 2021-08-29 words: 3678 flesch: 56 summary: Studies have shown with the significant num- ber of evidence that SARS-CoV-2 is transmissible through the inhalation of infected aerosol particles present in the air most especially in air recirculated environments. [24] S. L. Miller, W. W. Nazaroff & J. L. Jimenez, “Transmission of SARS- CoV-2 by inhalation of respiratory aerosol in the Skagit Valley Chorale superspreading event”, (2020), https://doi.org/2020.06.15.20132027. keywords: acute; aerosol; aerosol transmission; air; airborne; aladodo; atmosphere; cases; china; cloud; coarse; control; coronavirus; cov-2; covid-19; deposition; diameters; disease; droplet; dry; dust; emission; environment; evidence; fine; health; hospital; infectious; mode; mouth; nigeria; nucleation; pandemic; particles; phys; properties; respiratory; review; sars; sci; severe; size; soc; studies; surface; suspension; syndrome; time; transmission; virus cache: jnsps-162.pdf plain text: jnsps-162.txt item: #73 of 247 id: jnsps-166 author: J. O. Coker; A. A. Rafiu; N. N. Abdulsalam; A. S. Ogungbe; A. A. Olajide; A. J. Agbelemoge title: Investigation of Groundwater Contamination from Akanran Open Waste Dumpsite, Ibadan, South-Western Nigeria, using Geoelectrical and Geochemical Techniques date: 2021-05-29 words: 5268 flesch: 60 summary: The inverse resistivity models of the subsurface from 2D imag- ing revealed low resistivity value less than 10 Ωm suspected to be leachate infiltration. Resistivity distributions observed at greater depth are high when compared with low resistivity values observed at the surface. keywords: akanran; analysis; area; basement; bulk; clay; coker; coli; collected; concentration; contamination; control; density; depth; drinking; dumpsite; electrical; electrical resistivity; figure; geochemical; groundwater; high; ibadan; lateritic; layer; leachate; lead; level; limit; low; nigeria; nitrate; onsite; permissible; phys; plume; profile; resistivity; results; rocks; sample; sci; shows; soc; soil; solid; study; subsurface; surface; survey; topsoil; total; value; waste; water; zone cache: jnsps-166.pdf plain text: jnsps-166.txt item: #74 of 247 id: jnsps-168 author: Adesina, Olumide Sunday title: Bayesian Multilevel Models for Count Data date: 2021-08-29 words: 5313 flesch: 63 summary: As identified by [8] that Geometric family have the ability to model count data effectively, the same has been demonstrated in this study using Bayesian multi-level regression approach. Table 4 shows that hurdle negative binomial (4) has the highest of such observations, Poisson, negative binomial, and hurdle Poisson model has 3 of such observations while Geo- metric, zero inflated poisson and zero inflated negbin has two (2) each. keywords: adesina; analysis; bad; bayesian; binomial; carlo; count; count data; data; discrete; dispersion; distribution; encounter; est; figure; fit; fitting; generalized; geometric; good; health; hurdle; increases; inflated; insurance; journal; level; linear; log; loo; marginal; model; modelling; monte; multilevel; negative; negbin; nig; number; package; parameters; phys; plot; poisson; prior; regression; relationship; response; sampler; sci; shows; simulated; soc; study; table; type; users; variable; waic; weibull; zip cache: jnsps-168.pdf plain text: jnsps-168.txt item: #75 of 247 id: jnsps-17 author: Akinsola, Ibukun; Alabi, Aderemi Babatunde; Soliu, Muibat A; Akomolafe, Taiye title: Optimization of Method and Components of Enzymatic Fuel Cells date: 2019-12-30 words: 2302 flesch: 57 summary: The results which show that fuel cells constructed using bitter leaf with carbon electrode has the highest open circuit voltage, short circuit current and generated power of 162.8 mV , 1.65 µA and 268.62 nW respectively at 720 mins is obtained from the plots generated by the use of Microsoft Excel. Keywords: Enzymes, Fuel cells, Power generation. keywords: biofuel; bitter; bitter leaf; carbon; carbon electrodes; cells; circuit; copper; current; electrodes; energy; enzymatic; enzymes; figure; fuel; fuel cells; highest; hydrogen; leaf; microbial; open; phosphate; pipe; power; pvc; short; time; voltage; water cache: jnsps-17.pdf plain text: jnsps-17.txt item: #76 of 247 id: jnsps-170 author: Tuteja, Gurpreet; Singh, Tapshi title: Comments on “The Solution of aMathematicalModel for Dengue Fever Transmission Using Differential Transformation Method: J. Nig. Soc. Phys. Sci. 1 (2019) 82-87” date: 2021-05-29 words: 5014 flesch: 81 summary: −µh Rh (t ), τh > 0 being the treatment rate for infected humans and Ih (t ) is positive in time t , we can write as: d Rh Rh = −µh d t . E v (t ), S v (t ) is positive in time t and λD keywords: dengue; differential; dtm; e v; equations; fever; function; humans; infected; k=0; mathematical; method; model; population; positive; positivity; rate; s v; solution; susceptible; t k; treatment; vectors; ∣∣∣∣ cache: jnsps-170.pdf plain text: jnsps-170.txt item: #77 of 247 id: jnsps-172 author: Akpanibah, Edikan E.; Ini, Udeme O. title: An Investor’s Investment Plan with Stochastic Interest Rate under the CEV Model and the Ornstein-Uhlenbeck Process date: 2021-08-29 words: 8946 flesch: 77 summary: Sci. 3 (2021) 239–249 242 α1 = F n(AB−C2) 2C(2µ1µ2 −µ1r −µ2r) ,α2 = FBµ1 (µ1 − r) (AB−C2) 2C(2µ1µ2 −µ1r −µ2r) −G, α3 = FAµ2 (µ2 − r) (AB−C2) 2C(2µ1µ2 −µ1r −µ2r) −H, α4 = Fµ1 s1 (µ2 − r) (AB−C2) 2C(2µ1µ2 −µ1r −µ2r) , α5 = Fµ2 s2 (µ2 − r) (AB−C2) 2C(2µ1µ2 −µ1r −µ2r) , α6 = (BD−CE)Fµ1δρ 2C(2µ1µ2 −µ1r −µ2r) − k1δρ (µ1 − r) , α7 = (AE−CD)Fµ1δρ 2C(2µ1µ2 −µ1r −µ2r) − k2δρ s2β1 s β 2 z gz + s1 x gs1 + (BD−CE) δρ x ( AB−C2 ) sβ1 gr ϕ∗2 = [ Csβ2 (µ1 − r) −As β 1 (µ2 − r) ] x ( AB−C2 ) sβ1 s 2β 2 z gz + s2 x gs2 + (AE−CD) δρ x ( AB−C2 ) sβ2 gr 246 Akpanibah & Ini / J. Nig. keywords: 2β+2; ab−c2; akpanibah; assets; asymptotic; cev; constant; different; dual; elasticity; equation; figure; financial; form; free; function; gs1; ini; interest; investment; investor; legendre; logarithm; ls1; ls2; lxx; l̂zz; market; model; nig; optimal; optimal investment; pension; phys; plan; portfolio; price; process; rate; risk; sci; soc; solution; stochastic; stock; substituting; time; utility; volatility; −2β cache: jnsps-172.pdf plain text: jnsps-172.txt item: #78 of 247 id: jnsps-173 author: David Opeoluwa Oyewola; Dada, Emmanuel Gbenga ; Ndunagu , Juliana Ngozi; Abubakar Umar, Terrang ; S.A, Akinwunmi title: COVID-19 Risk Factors, Economic Factors, and Epidemiological Factors nexus on Economic Impact: Machine Learning and Structural Equation Modelling Approaches date: 2021-11-29 words: 7977 flesch: 59 summary: The main objective of this paper is to apply Structural Equation Modeling (SEM) and Machine Learning (ML) to determine the relationships among COVID-19 risk factors, epidemiology factors and economic factors. Bagging (BAG), Boosting (BST), Support Vector Machine (SVM), Decision Tree (DT) and Random Forest (RF) Machine Learning techniques was applied to predict the impact of COVID-19 risk factors. keywords: 395–405; age; algorithms; analysis; bagging; bst; cases; coronavirus; correlation; countries; covid-19; covid-19 risk; covid19; crude; data; dataset; date; decision; disease; economic; economic factors; economy; effect; epidemiology; epidemiology factors; equation; error; estimate; factors; financial; findings; forest; function; future; health; high; impact; journal; korea; latent; learning; linear; machine; markets; mean; modeling; models; nations; negative; nig; nigeria; novel; number; observed; oil; oyewola; pandemic; paper; patients; people; phys; positive; prediction; price; random; regression; relationship; research; respect; result; risk; risk factors; sci; sem; sex; significant; soc; social; south; spread; state; structural; structural equation; study; support; svm; table; techniques; tree; variables; variance; world cache: jnsps-173.pdf plain text: jnsps-173.txt item: #79 of 247 id: jnsps-174 author: O. E. Osafile; O. N. Nenuwe title: Lattice Dynamics and thermodynamic Responses of XNbSn Half-Heusler Semiconductors: A First-Principles Approach date: 2021-05-29 words: 7846 flesch: 57 summary: no: +2347033249124 Email address: osafile.omosede@fupre.edu.ng (O. E. Osafile ) two main classes of Heusler alloys; these are the full and half Heusler alloys. The universal anisotropy indices are 0.16, 0.03, and 0.009 for CoNbSn, IrNbSn, and RhNbSn half Heusler alloys. keywords: acoustic; alloys; anisotropy; applications; applied; approximation; atomic; average; band; bandgap; behaviour; bulk; c11; calculations; coefficient; compound; computational; conbsn; concentration; conductivity; constants; crystal; cubic; debye; density; dispersion; elastic; electrical; electronic; energy; equilibrium; figure; formation; functional; gemanam; half; half heusler; hardness; harmonic; heat; heusler; heusler alloys; high; increases; irnbsn; journal; lattice; literature; materials; mechanical; modes; modulus; negative; nig; optical; orbitals; parameter; perturbation; phonon; physical; physics; possible; pressure; principles; properties; quantum; ratio; results; review; rhnbsn; sci; seebeck; semiconductors; shear; soc; sound; stability; state; structure; table; temperature; theory; thermal; thermodynamic; thermoelectric; transverse; type; valence; values; velocity; volume; wang; work; xnbsn; zhang cache: jnsps-174.pdf plain text: jnsps-174.txt item: #80 of 247 id: jnsps-177 author: Olubi, Omodele; Oniya, Ebeneze; Owolabi, Taoreed title: Development of Predictive Model for Radon-222 Estimation in the Atmosphere using Stepwise Regression and Grid Search Based-Random Forest Regression date: 2021-05-29 words: 4988 flesch: 52 summary: MAE (Bq/m3) Training Test Training Test Training Test GS-RFR 0.99 0.83 8.57 20.26 5.38 14.07 SWR 0.64 0.61 23.86 23.89 0.01 0.10 (a) (b) (c) (d) Figure 2: Performance comparison between the developed models for training (TR) and test (TS) sets on the basis of RMSE on (a) KSG training dataset (b) KSG test dataset (c) JBS training dataset (d) JBS test dataset made a potential success in describing the non-linear rela- tionship between atmospheric radon concentration and in- fluencing meteorological parameters considering strong cor- relation coefficients it achieved. Despite the progress that has been made in radon instru- mentation, access to data on atmospheric radon concentra- tion is still to a large extent, lacking in the public domain. keywords: absolute; air; algorithm; analysis; atmospheric; classification; coefficient; concentration; correlation; data; dataset; environmental; error; figure; forest; gas; grid; humidity; hyperparameters; jbs; journal; ksg; linear; mae; mean; measurements; meteorological; models; nig; olubi; parameters; performance; phys; predictive; predictor; process; radon; random; regression; research; rfr; rmse; root; sci; search; selection; series; soc; soil; square; station; stepwise; swr; table; temperature; test; time; training; trees; variables; wind cache: jnsps-177.pdf plain text: jnsps-177.txt item: #81 of 247 id: jnsps-18 author: Eguda, Felix Yakubu; James, Andrawus; Babuba, Sunday title: The Solution of a Mathematical Model for Dengue Fever Transmission Using Differential Transformation Method date: 2019-09-03 words: 3389 flesch: 71 summary: = { 1, k = m 0, k , m y (t) = f (t) g (t) Y (k) = ∑k m=0 G(m) f (k − m) y (t) = e(λt) Derivation of Model Equations Let NH (t) and NV (t) denote the total number of humans and vectors at time t, respectively. keywords: dengue; differential; disease; dtm; eguda; equations; fever; figure; humans; journal; k=0; m=0; mathematical; method; model; population; rate; s h; s v; sci; solution; susceptible; t k; transformation; treatment; vectors cache: jnsps-18.pdf plain text: jnsps-18.txt item: #82 of 247 id: jnsps-182 author: Sylvester J. Gemanam; Nursakinah Suardi; Barnabas A. Ikyo; Samson Damilola Oluwafemi; Terver Daniel; Samuel T. Kungur title: Biostimulation Effects and Temperature Variation in Stimulated Dielectric Substance (Diabetic Blood Comparable to Non-Diabetic Blood) Based on the Specific Absorption Rate (SAR) in Laser Therapy date: 2021-05-29 words: 5928 flesch: 54 summary: The effect of blood temperature on diabetic blood SAR. Prior knowledge of blood SAR evaluating its dielectric properties is significant, but this is under investigation. keywords: absorption; average; biostimulation; bloat; blood; cells; changes; conditions; crenate; crenation; diabetes; diabetic; diabetic blood; dielectric; different; diseases; duration; effects; energy; exposure; figure; frequency; gemanam; heat; high; human; increase; irradiated; irradiation; journal; laser; level; low; medicine; mellitus; minutes; morphological; morphology; nig; non; observed; output; parameters; patients; peak; physiological; physiology; point; positive; power; properties; range; rate; research; results; samples; sar; saturation; sci; smeared; soc; specific; table; temperature; therapy; threshold; time; usm; values; variation cache: jnsps-182.pdf plain text: jnsps-182.txt item: #83 of 247 id: jnsps-183 author: Umar, Degree; Omonona, Olufemi Victor; Okogbue, Celestine title: Groundwater Quality Assessment Using Multivariate Analysis and Water Quality Index in some Saline Fields of Central Nigeria date: 2021-11-29 words: 6799 flesch: 59 summary: [22] M. Vasanthavigar, K. Srinivasamoorthy, K. Vijayaragavan, R. Ganthi, S. Chidambaram, P. Anandhan, R. Manivannan & S. Vasudevan, “Applica- tion of water quality for groundwater quality assessment: Thirumanimut- tar Sub basin, Tamil Nadu, India” Environmental Monitoring Assessment 171 (2010) 595. “Application of water quality for groundwater quality assessment of Tamil Nadu and Pondicherry India” Journal of Environmental Research and Development 8 (2014) 443. keywords: agricultural; analysis; aquifer; area; assessment; awe; awgu; benue; calcite; central; characteristics; chemistry; cluster; component; concentrations; controlling; correlation; different; dissolution; dolomite; drinking; earth; environmental; ezeaku; facies; fields; figure; formation; geology; groundwater; groundwater quality; hco3; high; hydrochemical; index; irrigation; journal; keana; lafia; locations; low; marine; minerals; nigeria; nitrate; no3; phys; physicochemical; ppm; principal; processes; purposes; quality; regression; results; river; saline; salinity; samples; sandstone; sci; sciences; shales; soc; sources; study; table; tds; total; trough; umar; unsuitable; value; wqi cache: jnsps-183.pdf plain text: jnsps-183.txt item: #84 of 247 id: jnsps-184 author: Akinsola, Ibukun; Alabi Aderemi Babatunde; Adedayo Kayode Seun; Coppede, Nicola title: Characterizations of Galena as Potential Photosensitizer in a Natural Dye-Sensitized Solar Cell date: 2021-05-29 words: 2767 flesch: 53 summary: The absorption spectra of Galena dye is given in figure 1. As a result, that these dyes are characterized by its toxicity, relatively ex- pensive, and difficult method of synthesis, increasing activi- ties for using natural dyes have been reported [5]. keywords: absorption; cells; cm−1; colour; diffraction; dssc; dye; dyes; electromagnetic; energy; figure; galena; groups; high; iron; lead; material; mineral; natural; nig; phys; potential; ppm; radiation; ray; region; ruthenium; sci; sensitized; soc; solar; spectra; table; transitions; visible; xrd cache: jnsps-184.pdf plain text: jnsps-184.txt item: #85 of 247 id: jnsps-188 author: Asere, A. M.; Owolabi, T. O.; B. D. Alafe, B. D. ; Alabi, O. P.; Alimi, M. B. title: Assessment of Excess Gamma Dose Exposure Level in Typical Nigeria Commercial Building Materials Distribution Outlets date: 2021-08-29 words: 5094 flesch: 65 summary: The type of building material and where it is sourced from can determine the amount of radionu- clides in the material since building materials reflect their geo- logic formation and origin Sci. 3 (2021) 216–223 Journal of the Nigerian Society of Physical Sciences Assessment of Excess Gamma Dose Exposure Level in Typical Nigeria Commercial Building Materials Distribution Outlets A. M. Aserea,∗, T. O. Owolabia, B. D. Alafea, O. P. Alabia, M. B. Alimia aDepartment of Physics and Electronics, Adekunle Ajasin University, Akungba Akoko, Ondo State, Nigeria Abstract The gamma dose rate exposure levels from different brands of building materials at commercial distribution stores/shops in two major cities in Ondo State, Nigeria, were measured using a well calibrated Inspector 1000 scintillator detector. keywords: akoko; akure; annual; annual effective; asere; background; building; building materials; cities; city; commercial; dose; dose rate; effective; effective dose; environment; excess; exposure; figure; gamma; gamma dose; ikare; indoor; levels; materials; mean; measurements; msv; natural; nigeria; ondo; outdoor; outlets; phys; pipes; radiation; radioactive; radioactivity; radionuclides; range; rate; research; sci; sheets; shops; soc; state; stores; table; tiles; total; typical; value; vy−1; water; year cache: jnsps-188.pdf plain text: jnsps-188.txt item: #86 of 247 id: jnsps-19 author: Ibrahim, Yusuf title: Common Fixed Point Theorems for Multivalued Generalized F-Suzuki-Contraction Mappings in Complete Strong b-Metric Spaces date: 2019-09-28 words: 5463 flesch: 96 summary: such that ∀x, y ∈ X, d(T x, T y) > 0 such that ∀x, y ∈ X, d(T x, T y) > 0 keywords: b−metric; complete; contraction; corollary; d(xn; d(xn+1; d(y; fixed; generalized; mapping; metric; n→∞; point; s y; sequence; space; t x; xm+1; xn+1; xn+2; ∣∣∣∣∣ cache: jnsps-19.pdf plain text: jnsps-19.txt item: #87 of 247 id: jnsps-194 author: Maihulla, Anas Sani; Yusuf, Ibrahim title: Performance Analysis of Photovoltaic Systems Using (RAMD) Analysis date: 2021-08-29 words: 4264 flesch: 67 summary: Variation in system reliability as a result of PV Module failure rate variation PV System PV System PV modules PV modules Time (in days) Variation in system reliability as a result of charge controller failure rate variation PV System PV System charge controller charge controller Time (in days) keywords: analysis; availability; copula; days; dependability; device; diagram; distribution; failure; indices; inverter; maihulla; maintainability; nig; performance; photovoltaic; phys; plant; power; ramd; rate; reliability; repair; sci; series; soc; state; steady; study; subsystem; system; table; time; unit; variation; yusuf cache: jnsps-194.pdf plain text: jnsps-194.txt item: #88 of 247 id: jnsps-196 author: Ayuba, Solomon A.; Akeyede, Imam; Olagunju, Adeyemi title: Stability and Sensitivity Analysis of Dengue-Malaria Co-Infection Model in Endemic Stage date: 2021-05-29 words: 5771 flesch: 69 summary: Effect of malaria recovery rate (α) on infectious (Ihm) population As seen in Figure 2, it is shown that α plays a significant influence in decreasing malaria infection. [22] H. Yin, C. Yang, & X. Zhang, “Dynamics of malaria transmission model with sterile mosquitoes”, J. Bio. keywords: -ve; 0 ηvdλd; analysis; control; death; dengue; dfep; disease; dynamics; endemic; equilibrium; fever; figure; free; human; idm; ihd; ihm; infected; infection; ivd; ivm; journal; malaria; mathematical; model; nh 0; nh s; number; parameters; phys; point; population; r0d; rate; recovery; region; sci; sensitivity; spread; stability; susceptible; transmission; vectors; virus; µh nh; ηvdλd; ηvmλm cache: jnsps-196.pdf plain text: jnsps-196.txt item: #89 of 247 id: jnsps-198 author: Abba, Ezra; Shehu, Zaccheus; Lamayi Danbature, Wilson ; Poloma Yoriyo, Kennedy; Dogara Kambel , Rifkatu; Nsor Ayuk, Charles title: A Novel developments of ZnO/SiO2 nanocomposite: a nanotechnological approach towards insect vector control date: 2021-08-29 words: 2779 flesch: 57 summary: Synthesis of ZnO/SiO2 Nanocomposite One gram (1 g) of Gum Arabic was poured into a beaker containing 40 ml of distilled water which was magnetically stirred for 10 minutes at 90◦C. Following this, 2 g of Zn(NO3)6 .6H2O and 2 g of silica gel were added and stirred for 30 min- utes. Characterization of the Green synthesized ZnO/SiO2 nanocom- posite ZnO/SiO2 Nanocomposite was characterized using Ultraviolet- visible Spectroscopy, Fourier transformed infrared spectroscopy (FT-IR) and Scanning Electron Microscopy (SEM) coupled with energy dispersed x-ray techniques. 2.4. keywords: 1st; 2nd; 3rd; activity; analysis; arabic; characterization; cm−1; concentrations; control; culex; different; edx; ezra; figure; gombe; green; gum; instar; larvae; larvicidal; mortality; mosquito; nanocomposite; nanoparticles; nig; phys; quinquefasciatus; res; sem; silica; sio2; sio2 nanocomposite; soc; spectroscopy; spectrum; state; study; synthesis; vector; visible; water; zno cache: jnsps-198.pdf plain text: jnsps-198.txt item: #90 of 247 id: jnsps-2 author: Kure, N.; Daniel, H. I.; Afuwai, C. G.; Adoyi, E. J.; Bello, I. A. title: The Delineation of Groundwater and Geotechnical Parameters within Marmara Area of Chikun Local Government of Kaduna State, Nigeria date: 2019-03-30 words: 3358 flesch: 58 summary: The Areas found to meet the conditions of high basement resistivity and shallow depth to basement, are found to be at VES A1, A2, A3, A4 and A6. Climate and vegetation of study area has a typical sa- vannah climate with distinct wet and dry seasons, the wet sea- son ranges from April to October, while the dry season between end October to March, the average annual rainfall for Kaduna is 300mm. keywords: aquifer; area; basement; buildings; clay; competent; configuration; construction; current; curve; data; depth; electrode; figure; fractured; fresh; geoelectric; geotechnical; groundwater; high; interpretation; journal; kaduna; laterite; layer; method; nigeria; parameters; potential; ranges; resistivity; sounding; state; study; subsurface; thickness; topsoil; value; ves; weathered; zones cache: jnsps-2.pdf plain text: jnsps-2.txt item: #91 of 247 id: jnsps-20 author: Otuokere, I. E.; Ohwimu, J. G.; Amadi, K. C.; Alisa, C. O.; Nwadire, F. C.; Igwe, O. U.; Okoyeagu, A. A.; Ngwu, C. M. title: Synthesis, Characterization and Molecular Docking Studies of Mn (II) Complex of Sulfathiazole date: 2019-10-13 words: 4179 flesch: 63 summary: The use of transition metal complexes as medicinal compounds has become more and more prominent. [11] B. K. Singh, H. K. Rajour & A. Prakash, “Synthesis, characterization and biological activity of transition metal complexes with Schiff bases derived from 2-nitrobenzaldehyde with glycine and methionine”, Spectrochimica Acta A 94 (2012) 143. keywords: ace; activity; atomic; attractive; aureus; biological; characterization; chemistry; cm−1; coli; complex; complexes; component; contact; crystal; data; degradosome; docking; energy; enolase; figure; global; group; interactions; journal; kcal; ligand; metal; mn(i; mn(sftz; molecular; nig; nuclease; otuokere; phys; ppm; refinement; schiff; sci; soc; solution; spectra; spectrum; structure; studies; sulfathiazole; synthesis; table; vdw cache: jnsps-20.pdf plain text: jnsps-20.txt item: #92 of 247 id: jnsps-201 author: Ojo, O. E.; Gelbukh, A.; Calvo, H.; Adebanji, O. O. title: Performance Study of N-grams in the Analysis of Sentiments date: 2021-11-29 words: 3995 flesch: 57 summary: Sci. 3 (2021) 477–483 Journal of the Nigerian Society of Physical Sciences Performance Study of N-grams in the Analysis of Sentiments O. E. Ojo∗, A. Gelbukh, H. Calvo, O. O. Adebanji aInstituto Politécnico Nacional, Natural Language and Text Processing Laboratory, Centro de Investigacion en Computación, CDMX, Mexico Abstract In this work, a study investigation was carried out using n-grams to classify sentiments with different machine learning and deep learning methods. Us- ing the training set to train the algorithm, we translated the data into numeric form, while the test set was used to evaluate the performance of the machine and deep learning models. keywords: 477–483; accuracy; algorithms; analysis; bigram; classification; data; dataset; deep; different; economic; features; figure; gelbukh; grams; information; language; learning; lrm; machine; machine learning; methods; mlp; models; ojo; performance; phys; precision; recall; results; reviews; rfc; sci; score; sentiment; soc; study; svm; tags; techniques; text; training; trigram; unigram; use cache: jnsps-201.pdf plain text: jnsps-201.txt item: #93 of 247 id: jnsps-202 author: Afolabi, A. F.; Oluyamo, S. S.; Fuwape, I. A. title: Synthetic characterization and Structural Properties of Nanocellulose from Moringa oleifera seeds date: 2021-08-29 words: 3713 flesch: 53 summary: Additionally, the high crystallinity of nanocellulose depends on the three hydroxyl groups in fundamental chemical structure of cellulose which have potential to instigate large intra and inter- molecular hydrogen bonding included in the cellulose chains, granting the crystalline packing of cellulose chains into greatly compact system (crystal structure) The crystallinity index of isolated cellulose from Moringa oleifera seeds (62.6%) is lower than the crys- tallinity index of the nanocellulose (65.4%), this contributed to high degree of crystallinity of the nanocellulose [27,28,29,30]. keywords: acid; afolabi; carbohydrate; cellulose; chains; characterization; chemical; cm−1; crystalline; crystallinity; degree; doi; engineering; figure; fourier; ftir; high; hydrolysis; index; infrared; intensity; isolated; isolated cellulose; isolated nanocellulose; isolation; journal; materials; moringa; moringa oleifera; nanocellulose; nanocrystals; nig; oleifera; peaks; phys; polymers; properties; research; sample; sci; seeds; soc; spectra; stretching; structure; surface; waste; water; xrd cache: jnsps-202.pdf plain text: jnsps-202.txt item: #94 of 247 id: jnsps-203 author: Aloysius Ndubisi, Orlunta; Briggs-Kamara, Margaret Apaem; Sigalo, Friday Barikpe; Iyeneomie, Tamunobereton-Ari title: Analysis of Indoor Radon Level and its Health Risks Parameters in Three Selected Towns in Port Harcourt, Rivers State, Nigeria date: 2021-08-29 words: 4530 flesch: 67 summary: 4. Conclusion The analysis of indoor radon concentration level and its health risk parameters has been done in Borikiri, Diobu and Trans-Amadi towns in Port Harcourt, Rivers State, Nigeria us- ing the Corentium Arthings radon digital detector. The Airthings Corentium digital detector can be used to monitor radon concentration levels for a minimum period of 48 hours, for daily, weekly, monthly and yearly. keywords: absorbed; annual; area; average; borikiri; bqm−3; calculated; cancer; concentration; coordinates; diobu; dose; effective; effects; elcr; equivalent; excess; health; icrp; indoor; international; level; life; lung; mean; msv; nigeria; orlunta; phys; protection; radiation; radon; radon-222; rate; rebisi; risk; sample; table; time; towns; values; yrs; ×10−3 cache: jnsps-203.pdf plain text: jnsps-203.txt item: #95 of 247 id: jnsps-206 author: Afolabi, A. F.; Oluyamo, S. S.; Fuwape, I. A. title: Synthetic Characterization of Cellulose from Moringa oleifera seeds and Potential Application in Water Purification date: 2021-08-29 words: 2719 flesch: 54 summary: The cellulose sample isolated from Moringa oleifera seed was characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM) and fourier transform infrared spectroscopy (FTIR). The aim of this re- search is to identify the intrinsic potential of the cellulose of Moringa oleifera seed for the purification of water. keywords: body; bond; cellulose; characterization; crystallinity; doi; fourier; ftir; functional; groups; health; high; human; index; infrared; isolated; isolation; journal; material; moringa; moringa oleifera; nig; oleifera; particles; peak; phys; properties; purification; research; sample; sci; seeds; soc; stretching; structure; transform; use; water; xrd cache: jnsps-206.pdf plain text: jnsps-206.txt item: #96 of 247 id: jnsps-209 author: Onate, C. A.; Onyeaju, M. C. title: Entropic system in the relativistic Klein-Gordon Particle date: 2021-08-29 words: 4975 flesch: 68 summary: [44] X. –J. Xie & C. –S. Jia, “Solutions of the Klein–Gordon equation with the Morse potential energy model in higher spatial dimensions”, Physica Scripta 90 (2015) 035207. [50] Han-Bin Liu1 · Liang-Zhong Yi2 · Chun-Sheng Jia, “Solutions of the Klein–Gordon equation with the improved Tietz potential energy model”, Journal of Mathematical Chemistry 56 (2018) 2982. keywords: energy; entropic; entropies; entropy; equation; figure; gordon; hellmann; ikot; information; jia; journal; klein; kratzer; measures; model; momentum; morse; n +; onate; onyeaju; physical; physics; position; potential; relation; relativistic; results; rényi; shannon; solutions; space; state; strength; system; tsallis; uncertainty; wave; γ(2η cache: jnsps-209.pdf plain text: jnsps-209.txt item: #97 of 247 id: jnsps-213 author: Labulo, Ayomide Hassan ; Elijah Temitope Adesuji; Charles Ojiefoh Oseghale; Elias Emeka Elemike; Adamu Usman; Akinola Kehinde Akinola; Enock Olugbenga Dare title: Corrigendum to "Effect of benzophenone on the physicochemical properties of N-CNTs synthesized from 1-ferrocenylmethyl (2-methylimidazole) catalyst" [J. Nig. Soc. Phys. Sci. 2 (2020) 205-217] date: 2021-05-29 words: 271 flesch: 47 summary: Sci. 2 (2020) 205-217] Ayomide Hassan Labuloa,∗, Elijah Temitope Adesujia, Charles Ojiefoh Oseghalea, Elias Emeka Elemikeb, Adamu Usmana, Akinola Kehinde Akinolac, Enock Olugbenga Darec aDepartment of Chemistry, Federal University of Lafia, Lafia, Nasarawa State, Nigeria bDepartment of Chemistry, Federal University of Petroleum, Nigeria cDepartment of Chemistry Federal University of Agriculture, Abeokuta, Ogun State, Nigeria DOI:10.46481/jnsps.2021.213 Article History : Received: 28 April 2021 Accepted for publication: 15 May 2021 Published: 29 May 2021 c©2021 Journal of the Nigerian Society of Physical Sciences. In addition, the sentence that reads “Ayomide is grateful to Prof. Vincent Nyamori, Prof. Bernand Omondi, and Mrs. Rashidat Labulo for proofreading this manuscript” should have read “Ayomide is grateful to Mrs. Rashidat Labulo for proofreading this manuscript”. keywords: ayomide; chemistry; federal; phys; research; university cache: jnsps-213.pdf plain text: jnsps-213.txt item: #98 of 247 id: jnsps-217 author: Abubakar, Hamza; Masanawa, Abdu Sagir; Yusuf, Surajo; Boaku, G. I. title: Optimal representation to High Order Random Boolean kSatisability via Election Algorithm as Heuristic Search Approach in Hopeld Neural Networks date: 2021-08-29 words: 6225 flesch: 56 summary: If the mR of the model HNN network approaches one after the computing cycle, all solutions generated in the network have achieved global minimum energy[19]. In this work, a novel and powerful heuristics search technique is known as Election algorithms has been explored for effective training of Hopfield neural network model. keywords: abc; abubakar; advertisement; algorithm; approach; artificial; clauses; complexity; computational; cpu; election; election algorithm; eligibility; equation; error; figure; final; follows; franks; global; hnn; hopfield; hopfield neural; hybrid; i=1; journal; learning; local; logical; mae; minimum; model; n n; network; neural; neural network; neurons; new; nig; number; optimal; optimization; order; parties; party; performance; phase; phys; population; problem; process; random; ranksat; representation; robustness; rule; satisfiability; sci; search; searching; soc; solution; space; sse; state; study; time; training cache: jnsps-217.pdf plain text: jnsps-217.txt item: #99 of 247 id: jnsps-22 author: Latunde, Tolulope; Esan, Opeyemi Odunayo; Richard, Joseph Oluwaseun; Dare, Damilola Deborah title: Analysis of a Stochastic Optimal Control for Pension Funds and Application to Investments in Lower Middle-Income Countries date: 2020-01-25 words: 3833 flesch: 58 summary: The two types of pension funds aggregated pension fund in this work where their growth rate g and µ respectively we have: dPt = gPt dCt = µCt (1) The dynamic model can be used to calculate optimal as- set allocation as it also takes change in the climate investment such as change in expected risk and returns, this model is also important for managing pension fund asset. keywords: analysis; asset; benefit; capita; condition; contribution; control; countries; country; determined; dynamic; economics; equation; figure; free; fund; ghana; growth; income; investment; kenya; latunde; lower; management; mathematics; middle; model; nigeria; optimal; parameters; pension; phys; plan; population; portfolio; problems; rate; risk; sci; sensitivity; soc; stochastic; time; volatility; world cache: jnsps-22.pdf plain text: jnsps-22.txt item: #100 of 247 id: jnsps-222 author: Aliyu, U. S.; Geidam, I. G.; Otto, M. S.; Hussaini, M. title: Investigations of the Elastic Moduli of Er2O3 NPs Doped TeO2 – B2O3 – SiO2 Glasses using Theoretical Models date: 2022-02-27 words: 5263 flesch: 64 summary: Packing Density (Vt ), Dissociation Energy (Gt ), Elastic Moduli (Em, Km and Gm) and Poisson Ratio (σm) for glass system of {[(TeO2)0.7 (B2O3)0.3]0.8 (SiO2)0.2}1−y (Er2O3 NPs)ycomposition. The elastic moduli for glass system of {[(TeO2)0.7 (B2O3)0.3]0.8 (SiO2)0.2}1−y (Er2O3 NPs)y composition is pre- sented in Figure 5 and Table 4. keywords: atomic; b2o3)0.3]0.8; bond; bulk; composition; compression; concentration; constant; density; dissociation; doi; elastic; elastic moduli; er2o3; figure; force; glass; glasses; gpa; increase; mackenzie; makishima; mater; model; moduli; modulus; molar; nps)y; number; optical; oxide; packing; phys; physical; poisson; properties; ratio; ring; rocherulle; sci; shear; sio2)0.2}1−y; stretching; structural; system; table; tellurite; teo2)0.7; theoretical; umar; values; young cache: jnsps-222.pdf plain text: jnsps-222.txt item: #101 of 247 id: jnsps-230 author: Selvaraju Sivamani; Marwan Ahmed Sulieman Al Aamri; Aseela Musalem Awad Anthroon Jaboob; Azeezah Mohammed Masoud Kashoob; Layal Kamall Abdullah Al-Hakeem; Mouna Salim Mhaad Said Almashany; Muna Ahmed Mohammed Safrar title: Heterogeneous Catalyzed Synthesis of Biodiesel from Crude Sunflower Oil date: 2022-02-27 words: 3144 flesch: 59 summary: [12] M. Ahmad, K. Ullah, M. A. Khan, M. Zafar, M. Tariq, S. Ali & S. Sultana, ”Physicochemical analysis of hemp oil biodiesel: a promising non edible new source for bioenergy”m Energy Sources [18] Y. Shimada, Y. Watanabe, A. Sugihara & Y. Tominaga, ”Enzymatic alco- holysis for biodiesel fuel production and application of the reaction to oil processing”, J. Mol. keywords: acid; agitation; alkali; biodiesel; calcium; catalyst; conversion; crude; edible; effect; energy; fats; fatty; ffa; figure; fuel; heterogeneous; hydroxide; mass; methanol; mixed; non; oil; oils; percentage; petro; process; production; pure; reaction; rpm; sci; sivamani; speed; sunflower; technol; temperature; time; transesterification; vegetable; volume; waste cache: jnsps-230.pdf plain text: jnsps-230.txt item: #102 of 247 id: jnsps-237 author: Kannaiyan, Sathish Kumar; Rengaraj R; Venkata krishnan G R; Gayathri P K; Lavanya G; Hemapriya D title: Antimicrobial activity of green synthesized tri-metallic oxide Ni/Cr/Cu nanoparticles date: 2021-08-29 words: 2792 flesch: 54 summary: This antimicrobial property of tri-metallic oxide NPs may be utilized in the field of medical research, pharmaceutical industries and environmental sciences. DOI:10.46481/jnsps.2021.237 Keywords: Tri-metallic oxide NPs, UV-Vis, XRD, antimicrobial activity, zone of inhibition. keywords: activity; agar; antibacterial; antifungal; antimicrobial; aureus; coli; comprising; concentration; control; coriander; extract; figure; flavus; green; inhibition; metallic; metallic nps; metallic oxide; method; nanoparticles; nps; observed; oxide; peaks; penicillium; plates; property; results; sativum; sci; size; species; staph; study; synthesis; tri; vis; xrd; zoi; zone cache: jnsps-237.pdf plain text: jnsps-237.txt item: #103 of 247 id: jnsps-238 author: Amos, O.; Odetoye, T. E ; Ogunniyi, D. S. title: Preparation and characterization of Zinc metal soap from shea butter (Vitellaria paradoxa) date: 2021-11-29 words: 2898 flesch: 56 summary: Sci. 3 (2021) 340–343 Journal of the Nigerian Society of Physical Sciences Preparation and characterization of Zinc metal soap from shea butter (Vitellaria paradoxa) O. Amosa,∗, T. E. Odetoyeb, D. S. Ogunniyib aDepartment of Industrial Chemistry, Federal University, Lokoja, P.M.B 1154, Lokoja, Nigeria bDepartment of Chemical Engineering, University of Ilorin, P.M.B 1515, Ilorin, Nigeria Abstract Zinc metal soaps are of great importance in the manufacture of personal care products and other industrial applications. Shea butter (Vitellaria paradoxa), being a valuable industrial raw material, was investigated for the synthesis of zinc metal soap. keywords: absorption; acid; alkalinity; butter; carboxylates; characterization; chloride; cm−1; colour; crude; degradation; fatty; figure; free; ftir; industrial; journal; koh; material; metal; metal soap; methods; oil; paradoxa; prepared; production; properties; raw; reaction; refined; saponification; sciences; seed; shea; shea butter; soap; spectra; synthesis; table; value; vitellaria; water; zinc; zinc metal cache: jnsps-238.pdf plain text: jnsps-238.txt item: #104 of 247 id: jnsps-240 author: Venkatakrishnan, G. R.; Rengaraj, R.; Sathish, K. K.; Dinesh, R. K.; Nishanth, T. title: Implementation of Modified Differential Evolution Algorithm for Hybrid Renewable Energy System date: 2021-08-29 words: 4426 flesch: 56 summary: [14] M. S. Ismail, M. Moghavveni, T.M.I Mahila “Genetic algorithm based op- timization on modeling and design of hybrid renewable energy systems”, Energy Conversion and Management 85 (2014) 120. The combination of wind as well as solar energy systems with battery as a backup source was being implemented to var- ious test case systems in [6] and [7]. keywords: algorithm; area; battery; best; cost; crossover; data; demand; differential; economic; energy; energy system; engineering; evolution; evolutionary; figure; flow; hourly; hybrid; implementation; international; issues; journal; load; maximum; minimum; modified; mutation; nig; optimal; optimization; output; paper; phys; power; pso; rate; renewable; renewable energy; resources; results; sci; soc; solar; speed; storage; study; system; technique; turbine; venkatakrishnan; wind cache: jnsps-240.pdf plain text: jnsps-240.txt item: #105 of 247 id: jnsps-247 author: Shaalini, V. J. ; Fadugba, S. E. title: A New Multi-Step Method for Solving Delay Differential Equations using Lagrange Interpolation date: 2021-08-29 words: 3187 flesch: 74 summary: Numerical Examples Example 1: (Stiff linear system with multiple delays) y1 ′ (t) = − 1 2 y1 (t) − 1 2 y2 (t − 1) + f1 (t) , y2 ′ (t) = −y2 (t) − 1 2 y1 ( t − 1 2 ) DOI:10.46481/jnsps.2021.247 Keywords: Multi-step method, Delay differential equations, Interpolating function, Lagrange interpolation, Stability polynomial, Stability region Article History : Received: 08 June 2021 Received in revised form: 12 July 2021 Accepted for publication: 24 July 2021 Published: 29 August 2021 c©2021 Journal of the Nigerian Society of Physical Sciences. keywords: ddes; delay; differential; epmm; equations; error; example; function; initial; journal; l=−r1; method; multi; numerical; order; polynomial; rmm2; s1∑; shaalini; solution; stability; step; time; yn+2 cache: jnsps-247.pdf plain text: jnsps-247.txt item: #106 of 247 id: jnsps-248 author: Okoye, Peter Chibuike; Azi, Samuel Ogochukwu; Owolabi, Taoreed O. title: Perovskite tetragonality modeling for functional properties enhancement using Newtonian search based support vector regression computational method date: 2022-02-28 words: 4527 flesch: 53 summary: Performance generalization of SVR model is determined by regularization factor C, the epsilon parameter �, and the ker- nel option, which are carefully selected user-defined parame- ters. Following the initialization of the number of agents, every agent in the population was used to train SVR algorithm with the training set of data, and their fitness was evaluated with the test- ing set of data. keywords: 20–26; absolute; agent; algorithm; constant; data; developed; distortion; doi; equation; error; figure; force; functional; gravitational; gsa; gsb; hybrid; hyper; kernel; lattice; law; learning; mae; mape; mass; masses; maximum; mean; model; nig; number; objects; optimization; parameters; performance; perovskite; phys; position; prediction; properties; regression; sci; search; soc; space; step; support; svr; tetragonality; training; vector cache: jnsps-248.pdf plain text: jnsps-248.txt item: #107 of 247 id: jnsps-249 author: Salawu, M. A.; Gbolahan, J. A. ; Alabi, A. B. title: Assessment of Radiation Shielding Properties of Polymer-Lead (II) Oxide Composites date: 2021-11-29 words: 3139 flesch: 56 summary: At the same time, their perfor- mance as radiation shielding materials are appreciable partic- ularly at higher concentrations and for low energy gamma ray sources. The results obtained proved that the polymer composites considered exhibits excellent lightness relative to conventional radiation shielding materials such as Lead, Barite, Steal, Concrete Lead Glass, whose % heaviness ranges between 54.85 and 100. keywords: attenuation; ba-133; co-60; coefficient; composites; cs-137; density; different; energy; epoxy; figure; filler; gamma; half; heaviness; journal; kev; layer; lead; length; linear; linear attenuation; materials; measured; nuclear; pbo; physics; polymer; properties; radiation; ray; rays; relaxation; resin; salawu; samples; shielding; soc; sources; study; thickness; value; weight cache: jnsps-249.pdf plain text: jnsps-249.txt item: #108 of 247 id: jnsps-252 author: Yusuf Olanrewaju Saheed; Mufutau Abiodun Salawu; Aderemi Babatunde Alabi title: Mechanical Evaluation and Minerals Phases Identification of Fine and Coarse Okelele Block Clay Composites for Furnace Lining Application date: 2022-02-27 words: 3455 flesch: 63 summary: [10] O. Ombaka, “Characterization and classification of clay minerals for po- tential applications in Rugi Ward, Kenya”, African Journal of Environ- mental Science and Technology 10 (2016) 415. 10 g, 15 g, 25 g, 35 g and 45 g of coarse clay were added respectively to the 230 g of homogenous fine clay paste in different container. keywords: application; block; break; characterization; clay; coarse; composites; compression; def; deflection; engineering; figure; fine; fire; force; furnace; ilorin; journal; kaolinite; lining; materials; maximum; mineral; mm2; modulus; okelele; peak; phys; quartz; refractory; samples; state; strain; stress; table; temperature; test; time; yield cache: jnsps-252.pdf plain text: jnsps-252.txt item: #109 of 247 id: jnsps-253 author: Duru, Chidi; Duru, Ijeoma ; Chidiebere, Chiagoziem title: Virtual Screening of Selected Natural Products as Human Tyrosinase-Related Protein 1 Blockers date: 2021-08-29 words: 2993 flesch: 53 summary: About 75% of Nigerian women and between 52-67% of Senegalese women apply skin bleaching products [3]. Their binding affinity on this enzyme was determined and compared with hydroquinone in the bid to understand their mode of ac- tion and identify possible candidates that could replace this syn- thetic compound in skin lightening products. keywords: acid; affinity; amino; arbutin; ascorbic; binding; bleaching; chemistry; compound; computational; creams; dermatol; docking; duru; enzyme; glutathione; his381; human; hydrogen; hydroquinone; i.a; interactions; kcal; ligand; lightening; melanin; mol; natural; niacinamide; nig; phys; production; products; protein; results; salicin; sci; ser394; silico; similar; site; skin; soc; structure; studies; study; synthetic; table; thr391; tropolone; tyrosinase; tyrp1; use cache: jnsps-253.pdf plain text: jnsps-253.txt item: #110 of 247 id: jnsps-259 author: B. N., HIKON; YEBPELLA, GARY G; JAFIYA, LAMI; Ayuba, S. title: Preliminary Investigation of Microplastic as a Vector for Heavy Metals in Bye-ma Salt Mine, Wukari, Nigeria date: 2021-08-29 words: 3264 flesch: 63 summary: DOI:10.46481/jnsps.2021.259 Keywords: microplastics, sediment, aquatic, heavy metals, functional group. The hydrophobic nature of the microplastics attract persis- tent organic pollutants and accumulate heavy metals like cad- mium (cd), copper (Cu), iron (Fe), silver (Ag), manganese (Mn), aluminum (Al) zinc (Zn) and lead (Pb), which could lead to a greater bio-accessibility of metals when aquatic animals con- sume micro plastics [12]. keywords: absorption; acetate; aquatic; area; bands; bend; cadmium; cm−1; concentration; debris; environment; ethylene; following; ftir; functional; groups; heavy; hikon; lead; marine; materials; metals; microplastics; nig; phys; pollutants; pollution; polymer; result; samples; sampling; sci; sciences; sediment; sites; soc; state; stretch; study; table; vinyl cache: jnsps-259.pdf plain text: jnsps-259.txt item: #111 of 247 id: jnsps-261 author: Sodeinde, K. O.; Olusanya, S. O.; Momodu, D. U.; Enogheghase, V. F.; Lawal, O. S. title: Waste glass: An excellent adsorbent for crystal violet dye, Pb2+ and Cd2+ heavy metals ions decontamination from wastewater date: 2021-11-29 words: 5569 flesch: 56 summary: Optimum adsorption efficiency of 94%, 97.5% and 89.1% was attained for Pb2+, Cd2+ ions and CV dye respectively at 70◦C. Adsorption process followed more accurately pseudo-first order model and isotherm fitted perfectly into Freundlich model indicating a multilayer adsorption mechanism for CV dye and the heavy metals. 89.87% reduction in Chemical Oxygen Demand (COD) level of wastewater was reported upon treatment with waste glass adsorbent affirming its efficiency for dye and heavy metal pollutants removal. Effect of adsorbate concentration Adsorption experiments were carried out at a concentra- tion range of 1-20 ppm with an adsorbent dosage of 0.5 g of waste glass adsorbent at 30◦C for 30 min (Figure 6a). keywords: adsorbate; adsorbent; adsorption; adsorption efficiency; analysis; aqueous; area; cd2; concentration; contact; crystal; cv dye; dosage; dye; dyes; edx; effect; efficiency; effluent; equilibrium; figure; freundlich; glass; heavy; increase; ions; isotherm; kinetic; langmuir; materials; medium; metal; min; model; nig; order; pb2; phys; pollutant; porous; powder; pseudo; removal; result; sample; sci; second; sem; soc; sodeinde; solution; studies; surface; temperature; textile; time; treatment; violet; waste; waste glass; wastewater; water cache: jnsps-261.pdf plain text: jnsps-261.txt item: #112 of 247 id: jnsps-262 author: Bwede, D. D. ; Wuana, R. A. ; EGAH, G. O.; Itodo, A. U. ; Ogah, E. ; Yerima, E. A. ; Ibrahim, A. I. title: Characterization and Evaluation of Human Health Risk of Heavy Metals in Tin Mine Tailings in Selected Area of Plateau State, Nigeria date: 2021-11-29 words: 5417 flesch: 66 summary: The Rtotal results for As, Cr, Pb and Ni for mining site S3 were found to be (1.39 × 102, 2.02 × 10−7, 3.30 × 103 and 8.17 × 10−8), and control site (3.42 × 103, 2.64 × 10−5, 38.30 × 101, 6.90 × Two samples of 50 g each were taken from mining sites in Zabot (S3) and Tafan (S4) in Barkin Ladi Local Government Area of Plateau State, with their respective control. keywords: activities; adults; area; assessment; bwede; carcinogenic; carcinogenic risk; children; concentration; control; dermal; dose; environmental; exposure; greater; hazard; health; health risk; heavy; heavy metals; high; human; ingestion; inhalation; journal; metals; mining; nigeria; non; phys; plateau; pollution; research; results; risk; risk assessment; rtotal; sample; sci; significant; site; soc; soil; state; sum; surface; table; tafan; tailings; threshold; tin; values; zabot cache: jnsps-262.pdf plain text: jnsps-262.txt item: #113 of 247 id: jnsps-265 author: Adams, Samuel Olorunfemi; Obaromi, Davies Abiodun; Irinews, Alumbugu Auta title: Goodness of Fit Test of an Autocorrelated Time Series Cubic Smoothing Spline Model date: 2021-08-29 words: 5726 flesch: 60 summary: Selection of the smoothing parameter The smoothing parameter in cubic spline smoothing is to control the smoothness of the fitted curve, to estimate the op- timal value of the smoothing parameter λ, three smoothing pa- rameter selection criteria are considered and compared in this study: Generalized Cross-Validation (GCV), Generalized Max- imum Likelihood (GML) and Mallow Cp (MCP). DOI:10.46481/jnsps.2021.265 Keywords: Cubic spline, Goodness-of-fit test, Generalized Maximum Likelihood (GML), Generalized Cross-Validation (GCV), Mallow CP criterion (MCP) keywords: adams; adjusted; autocorrelation; best; criterion; cross; cubic; cubic smoothing; cubic spline; curve; data; error; estimation; figure; fit; function; gcv; generalized; gml; goodness; journal; levels; life; likelihood; maximum; mcp; mean; methods; model; nig; nigeria; nonparametric; observations; parameter; performance; phys; predictive; real; regression; result; sample; sci; section; selection; series; simulation; sizes; smoothing; smoothing spline; soc; spline; square; statistics; study; test; time; validation; value cache: jnsps-265.pdf plain text: jnsps-265.txt item: #114 of 247 id: jnsps-267 author: Faremi, A. A.; Oluyamo, S. S.; Adedayo, K. D.; Odusote, Y. A.; Olusola, O. I. title: Influence of Silicon Nanoparticle on the Electrical Properties of Heterostructured CdTe/CdS thin films based Photovoltaic Device date: 2021-08-29 words: 3523 flesch: 47 summary: CdTe thin film as one of the primary candi- dates in the field of photovoltaic technology has gained world- wide prominence owning to its near ideal bandgap energy of 1.45 eV for the absorption of photons [6]. [20] H. I. Salim, V. Patel, A. Abbas, J. M. Walls & I. M. Dharmadasa, “Elec- trodeposition of CdTe thin films using nitrate precursor for applications in solar cells”, Journal of Material Science: Materials in Electrons 26 (2015) 3119. keywords: bath; cadmium; cathodic; cds; cdte; cells; characterization; circuit; cm2; current; device; electrical; electrodeposition; electrometer; faremi; figure; films; fto; gel; heterostructured; high; journal; materials; maximum; nanoparticles; nig; parameters; peaks; photovoltaic; phys; polycrystalline; potential; properties; research; science; silicon; soc; solar; structural; substrate; surface; synthesis; technique; technology; thin; voc; voltage cache: jnsps-267.pdf plain text: jnsps-267.txt item: #115 of 247 id: jnsps-27 author: Shamsudeen, A. ; S., Shuaibu; Abdu, S.G. ; Abubakar, M. S. ; lawal, Abdullahi title: First-principles calculations of Fluorine-doped Titanium dioxide: A prospective material for solar cells application date: 2019-12-17 words: 4972 flesch: 61 summary: Eundoped + µo −µF (1) where, Edoped is the total energy of the anatase T iO2 material; Eundoped is the total energy of the anatase undoped T iO2 system; µo is the chemical potential per atom of Oxygen bulk crystal; µF is the chemical potential per atom of Fluorine bulk crystal. For the anatase TiO2 phase the calculated electronic band structures of pureTiO2 and TiO2 doped Fluorine nanocrystals are displayed along a high symmetry directions and the energy range of band structure is plotted from 0.0 eV to 3.9 eV , the energy separation between the bottom of the conduction band and the top of valence band occurred at the Γ and N points, indicating that anatase T iO2 is an indirect band gap material with an approximate value of 2.30 eV energy gap, this value is consistent with previous DFT result. keywords: anatase; anatase t; atom; band; calculated; calculations; cells; chemical; convergence; cut; density; dft; dopant; doping; electronic; energy; experimental; figure; fluorine; formation; functional; gap; high; indirect; io2; journal; kinetic; lot; materials; nig; optical; orbital; oxygen; pbe; physical; physics; points; potential; properties; respect; results; rutile; sci; soc; solar; stability; stable; state; structure; study; t io2; tio2; total; total energy; undoped; value; work cache: jnsps-27.pdf plain text: jnsps-27.txt item: #116 of 247 id: jnsps-271 author: Kida, M.; Adamu, S.; Aduroja, O. O; Pantuvo, P. T title: Numerical Solution of Stiff and Oscillatory Problems using Third Derivative Trigonometrically Fitted Block Method date: 2022-02-27 words: 8072 flesch: 80 summary: cos 5hω  ζ12 = 1 2  24 cos hω + 63 cos 2hω− 28 cos 3hω− 10 cos 4hω +4 cos 5hω + cos 6hω− 32h2ω2 + 32h2ω2 cos hω −16h2ω2 cos 2hω + 32h2ω2 cos 3hω− 16h2ω2 cos 4hω +48hω sin hω + 48hω sin 2hω− 72hω sin 3hω cos 3 2 hω +9 cos 52 hω− 20h 2ω2 + 18h2ω2 cos 12 hω + 2h 2ω2 cos 32 hω +8hω sin hω + 16hω sin 2hω + 70hω sin 12 hω− 45hω sin 3 2 hω −3hω sin 52 hω− 86  ω  12 sin hω− 22 sin 2hω− 42 sin 12 hω + 27 sin 3 2 hω + 5 sin 5 2 hω +26hω + 4hω cos hω + 2hω cos 2hω− 32hω cos 12 hω +hω cos 32 hω− hω cos 5 2 hω  γ12 = 1 2  39 sin hω− 24 sin 2hω + 3 sin 3hω− 12 sin 12 hω− 6 sin 3 2 hω +6 sin 52 hω− 26hω + 8h 2ω2 sin hω + 2h2ω2 sin 2hω + 4h2ω2 sin 12 hω −6h2ω2 sin 32 hω− 2h 2ω2 sin 52 hω + 17hω cos hω + 10hω keywords: 26hω; 2hω; 32hω; 3hω; 4hω; 52hω; 5hω; 64hω; 6hω; 8hω; approximate; better; block; case; cos; cos 3hω; cos hω−; derivative; differential; equations; error; example; figure; fn+1; hybrid; initial; journal; kida; linear; mathematics; method; new; nig; numerical; order; ordinary; oscillatory; phys; point; problems; result; sin; sin 4hω; soc; solution; stability; step; stiff; table; theorem; time; value; ;  cache: jnsps-271.pdf plain text: jnsps-271.txt item: #117 of 247 id: jnsps-28 author: Oveh, R. O.; Efevberha-Ogodo, O.; Egbokhare, F. A. title: Software Process Ontology: A case study of software organisations software process sub domains date: 2019-12-17 words: 3884 flesch: 47 summary: To provide clarity and efficiency in the for- mal representation of software process knowledge, the concepts from the harvested knowledge were categorized into the four main knowledge entities: 1. In this paper, Software process knowledge from successful organisations was harvested and formally modelled using ontology. keywords: approach; business; case; code; coding; concepts; conference; data; definition; design; development; domain; engineering; entities; experts; figure; ieee; implementation; instances; journal; key; knowledge; maintenance; management; nig; objects; ontologies; ontology; organisations; oveh; phys; process; processes; property; representation; requirements; review; sci; sharing; soc; software; software process; specific; stakeholders; step; string; study; subdomains; systems; table; tasks; users cache: jnsps-28.pdf plain text: jnsps-28.txt item: #118 of 247 id: jnsps-282 author: Etim, E. E; Khan, M. E; Godwin, O. E; Ogofotha, G. O title: Quantum Chemical Studies on C4H4N2 Isomeric Molecular Species date: 2021-11-29 words: 4687 flesch: 70 summary: no: Email address: emmaetim@gmail.com (E. E. Etim ) C4H4N2 has many isomeric species of wide spread relevance. [7] E. E. Etim, Prsanta Gorai, Ankan Das & E. Arunan, “Interstellar Proto- nated Molecular Species” Advances in Space Science, 60, (2017) 709. keywords: a(1; a(2; a(3; a(4; a(5; a(6; angles; bond; c4h4n2; calculated; chemical; cm−1; computational; constants; dipole; etim; experimental; formation; frequencies; good; intensities; interstellar; isomeric; isomers; level; molecular; nig; phys; pyrimidine; r(1; r(2; r(3; r(4; r(5; rotational; sci; soc; species; study; table; values; vibrational cache: jnsps-282.pdf plain text: jnsps-282.txt item: #119 of 247 id: jnsps-283 author: Najib, Kabiru Lere; Hassan, Adamu Shitu title: Food and environmental degradation as causative agents of honey bee colonies decline: Mathematical model approach date: 2021-11-29 words: 6542 flesch: 65 summary: We add a compartment that models the food in bee colony surrounding to investigate how gradual change in the environment will affect the dynamics of bee colony. Numerical simulation of the model depicting the effect of en- vironmental degradation on food stored in bee colony and surrounding using parameter values in Table 1 except for µ = 0.043, 0.044, 0.045. keywords: analysis; availability; bee colony; bees; brood; c.c.d; change; collapse; collection; colonies; colony; conditions; day; days; death; decline; degradation; development; dynamics; effect; eggs; environmental; equations; equilibrium; figure; food; foragers; f∗2; global; hassan; hive; honey; honey bee; initial; journal; mathematical; model; najib; nig; non; number; numerical; parameter; phys; plos; pollen; population; prcc; queen; rate; research; results; sci; sciences; sensitivity; simulations; soc; surrounding; survival; table; theorem; time; trivial; values; worker; αmax; αmin cache: jnsps-283.pdf plain text: jnsps-283.txt item: #120 of 247 id: jnsps-297 author: Iyorzor, Benjamin; Babalola, Michael title: Half-metallic Characteristics of the Novel Half Heusler Alloys XCrSb (X=Ti, Zr, Hf ) date: 2022-02-27 words: 4956 flesch: 65 summary: This ob- servation is in line with observations by other researchers who worked on half Heusler alloys. Structural, electronic, elastic and mechanical properties of novel ZrMnAs half Heusler alloy from first principles. keywords: alloys; atom; babalola; band; calculations; compounds; constants; debye; density; elastic; electronic; energy; fermi; ferromagnetic; figure; half; heusler; heusler alloys; hfcrsb; initio; iyorzor; journal; lattice; magnetic; majority; materials; mechanical; metallic; modulus; moment; nig; novel; orbital; physical; physics; principles; properties; results; review; sci; soc; spin; stability; states; structural; study; table; temperature; thermodynamic; ticrsb; total; xcrsb; zrcrsb cache: jnsps-297.pdf plain text: jnsps-297.txt item: #121 of 247 id: jnsps-298 author: Terver Daniel; F. Eriba-Idoko; J. O. Tsor; S. T. Kungur; E. O. Enokela; F. Gbaorun; E. C. Hemba; A. A. McAsule; N. S. Akiiga; P. O. Ushie title: Effects of Repeated Frying on Physical Properties of Cooking Oil obtained from Local Markets in Makurdi Metropolis, Benue State, Nigeria. date: 2021-11-29 words: 4947 flesch: 64 summary: The viscosity of the different brands of cooking oil was measured with the instrumentality of Brookfield Viscometer. no: +234(0)8167598988 Email address: terver.daniel@yahoo.co.uk, tdaniel@bsum.edu.ng (P. O. Ushie) cocoa-nut trees, groundnut and soybean plants are few exam- ples of plants whose seeds and fruits can be processed in order to extract various kinds of cooking oils that are mostly con- sumed on daily basis in this part of the world. keywords: available; benue; brookfield; change; coconut; consumption; cooking; cooking oil; daniel; days; decrease; density; different; effect; equation; figure; flow; fluid; food; frying; gravity; groundnut; health; heat; high; increase; kernel; makurdi; market; mass; metropolis; nigeria; oil; oils; olive; palm; palm oil; physical; physics; point; potatoes; process; properties; rate; results; room; samples; sci; shear; soc; soybean; specific; spindle; state; table; technol; temperature; university; vegetable; viscometer; viscosity; viscous; work; world; yams cache: jnsps-298.pdf plain text: jnsps-298.txt item: #122 of 247 id: jnsps-3 author: Oguntoye, O. S.; Okooboh, A. M.; Bello, O. M.; Usman, A. H. ; Abdussalam, S. S.; Awolola, G. V. title: Antimicrobial Assessment of Different Solvent Extracts of the Root-bark, Stem-bark and Leaves of Acacia ataxacantha Linn. date: 2019-03-13 words: 4471 flesch: 56 summary: The zone of inhibition of A. ataxacantha plant extracts were determined by using selected pathogenic micro-organisms ob- tained from the National Veterinary Research Institute, (NVRI) Vom, near Jos in Plateau State. Further- more, zone of inhibition of A. ataxacantha plant extracts were evaluated according to the methods used by Lalnundanga et al. and Mathur keywords: + +; acacia; acetate; activity; agar; antibacterial; antimicrobial; ataxacantha; bacteria; bark; concentration; different; diseases; e.a; ethyl; extract; fungi; growth; h2o; hex; hexane; infectious; inhibition; journal; leaves; mbc; meoh; methanol; mfc; mic; minimum; nigeria; parts; phytochemical; plant; pneumonia; research; resistance; result; root; stem; study; table; typhi; values; water; zone cache: jnsps-3.pdf plain text: jnsps-3.txt item: #123 of 247 id: jnsps-30 author: Adeniran, Adefemi; A. A. Sodipo; C. G. Udomboso title: A Modifed Forced Randomized Response Model date: 2020-02-28 words: 9405 flesch: 68 summary: − V ar(π̂s propo) ≥ 0. − V ar(π̂spropo) keywords: 36–50; adeniran; answers; ar(π̂s; ar(π̂stpropo; boruch; comparison; data; design; distribution; efficient; equation; estimate; estimator; function; h=1; journal; l(π̂sh; likelihood; mangat; maximum; mfrrm; mixed; model; nig; noh; number; original; p(1; phys; population; posterior; prior; probability; procedure; proportion; proposed; pπs; question; randomization; randomized; randomized response; respondents; response; response model; results; rrm; sample; sampling; sci; section; sensitive; soc; statistical; strata; stratified; stratum; study; survey; table; unbiased; unrelated; variance; warner; whπ̂sh; yes; β(a; πsh(1; π̂bayesian; π̂mle; π̂sh; − p; −πsh;  cache: jnsps-30.pdf plain text: jnsps-30.txt item: #124 of 247 id: jnsps-301 author: Khan, M. E; Etim, E. E.; Anyam, V. J; Abel, A; Osigbemhe, I. G; Agber, C. T title: Computational studies on Emodin (C15H10O5) from Methanol extract of Pteridium acquilinum leaves date: 2021-11-29 words: 6646 flesch: 55 summary: 360–384 371 Table 9 – Continued from previous page 11 -11.30275 Occupied A 12 -11.29346 Occupied A 13 -11.29192 Occupied A 14 -11.28269 Occupied A 15 -11.28221 Occupied A 16 -11.2699 Occupied A 17 -11.2639 Occupied A 18 -11.26076 Occupied A 19 -11.25788 Occupied A 20 -11.24752 Occupied A 21 -1.45133 Occupied A 22 -1.443 Occupied A 23 -1.43897 Occupied A 24 -1.43163 Occupied A 25 -1.4124 Occupied A 26 -1.21648 Occupied A 27 -1.19863 Occupied A 28 -1.12143 Occupied A 29 -1.07739 Occupied A 30 -1.06499 Occupied A 31 -1.05973 Occupied A 32 -0.9952 Occupied A 33 -0.9526 Occupied A 34 -0.92195 Occupied A 35 -0.89005 Occupied A 36 -0.86663 Occupied A 37 -0.83926 Occupied A Continued on next page 371 Khan et al. / J. Nig. Sci. 3 (2021) 360–384 372 Table 9 – Continued from previous page 38 -0.79888 Occupied A 39 -0.77404 Occupied A 40 -0.76007 Occupied A 41 -0.73987 Occupied A 42 -0.72586 Occupied A 43 -0.69958 Occupied A 44 -0.69417 Occupied A 45 -0.67067 Occupied A 46 -0.66231 Occupied A 47 -0.65235 Occupied A 48 -0.64739 Occupied A 49 -0.63103 Occupied A 50 -0.62251 Occupied A 51 -0.61638 Occupied A 52 -0.60289 Occupied A 53 -0.60155 Occupied A 54 -0.59301 Occupied A 55 -0.58622 Occupied A 56 -0.58475 Occupied A 57 -0.56457 Occupied A 58 -0.56087 Occupied A 59 -0.55885 Occupied A 60 -0.54681 Occupied A 61 -0.54236 Occupied A 62 -0.53297 Occupied A 63 -0.49741 Occupied A 64 -0.48094 Occupied A Continued on next page 372 Khan et al. / J. Nig. keywords: a(2; acetate; adamawa; angles; anthraquinone; aquilinum; atoms; bond; calculations; chemical; chemistry; cm−1; computational; constants; continued; dipole; distances; e. e.; emodin; et al; ethyl; etim; extract; figure; frequencies; frequency; geometry; isolated; j. nig; journal; khan; khan et; leaf; leaves; level; m062x/6; methanol; molecule; moments; natural; nig; nigeria; nmr; page; phys; plant; previous; previous page; products; pteridium; quantum; raman; research; rotational; sci; sciences; soc; spectra; spectrum; state; stretching; structure; studies; table; theory; tlc; university; unoccupied; vlc cache: jnsps-301.pdf plain text: jnsps-301.txt item: #125 of 247 id: jnsps-304 author: O. G. Obadina; Adedotuun, Adedayo Funmi; O. A. Odusanya title: Ridge Estimation's Effectiveness for Multiple Linear Regression with Multicollinearity: An Investigation Using Monte-Carlo Simulations date: 2021-11-29 words: 2411 flesch: 58 summary: Giacalone et al, [7] define multicollinearity as a condition were regressor variables in multiple linear regression model is almost linearly dependent. I Ullah, M. Aslam, S. Altaf, & M. Ahmed “Some new diagnostics of multicollinearity in linear regression model”, Sains Malaysiana 48 (2019) 2051. keywords: approach; carlo; coefficients; error; estimator; fuzzy; independent; journal; linear; lkm; lkm mrr; mean; method; model; monte; mrr; mrr mrr; multicollinearity; multiple; parameter; predictors; regression; ridge; simulation; square; variables; variance; x′x; βols cache: jnsps-304.pdf plain text: jnsps-304.txt item: #126 of 247 id: jnsps-308 author: Umarani, V; Julian, A; Deepa, J title: Sentiment Analysis using various Machine Learning and Deep Learning Techniques date: 2021-11-29 words: 5780 flesch: 57 summary: Sentiment analysis is an automated computational method for studying or evaluating sentiments, feelings, and emotions expressed as comments, feedbacks, or critiques. The supervised machine learning technique is the most used mechanism for sentiment analysis. keywords: 385–394; accuracy; algorithm; analysis; approach; aspect; bayes; cell; classification; classifier; cnn; convolution; curve; data; decision; deep; feature; figure; forest; function; gate; hidden; information; input; journal; knn; layer; learning; level; logistic; lstm; machine; method; model; naive; negative; network; neural; nig; number; output; performance; phys; pooling; positive; precision; process; random; recall; regression; restaurant; reviews; roc; sci; score; selection; sentiment; sentiment analysis; set; size; soc; state; supervised; support; techniques; text; training; tree; twitter; umarani; value; vector; word cache: jnsps-308.pdf plain text: jnsps-308.txt item: #127 of 247 id: jnsps-31 author: Fadugba, Sunday Emmanuel title: Solution of Fractional Order Equations in the Domain of the Mellin Transform date: 2019-12-30 words: 3230 flesch: 75 summary: D α t f (t); ω) = ∫ ∞ 0 dn dtn h(t)tω−1dt = ∫ ∞ 0 hn(t)tω−1dt (12) with h(t) = 0 D −(n−α) t f (t) (13) = 1 Γ(α) ∫ t 0 (t −τ)α−1 f (τ)dτ,α > 0,τ > 0 keywords: caputo; derivative; differential; equations; f(ω; fractional; fractional derivative; function; integral; liouville; m(0; mellin; mellin transform; miller; order; riemann; ross; solution; t f; transform; yields; γ(1; γ(ω; −ω−α cache: jnsps-31.pdf plain text: jnsps-31.txt item: #128 of 247 id: jnsps-315 author: Nigerian Society of Physical Sciences title: Introducing article numbering to Journal of the Nigerian Society of Physical Sciences date: 2022-08-12 words: 274 flesch: 52 summary: While journal volumes and issue numbers will remain in place, article numbering will now play the key role in identifying specific articles. For papers that use article numbers, the page number will start from 1 and the article number is used instead of the page range in the citation. keywords: article; journal; nigerian; physical; sciences; society cache: jnsps-315.pdf plain text: jnsps-315.txt item: #129 of 247 id: jnsps-320 author: Adesokan, S. A.; Giwa, A. A. ; Bello, I. A. title: Removal of Trimethoprim from Water using Carbonized Wood Waste as Adsorbents date: 2021-11-29 words: 6461 flesch: 60 summary: Comparison of qmax of some adsorbents reported in lit- eratures indicated that ZAC and PACB were better adsorbents for TMP adsorption from aqueous solution. Both processes were physical because n greater than 1 for Table 4: Isotherm parameters for TMP adsorption onto the ZAC and the PACB Isotherm ZAC PACB Langmuir q0 (mg/g) 4.115 6.495 kL keywords: adesokan; adsorbate; adsorbents; adsorption; antibiotics; carbon; chemical; constant; contaminants; daniellia; data; diffusion; doi; dubinin; effect; environment; equations; equilibrium; figure; halsey; high; higher; initial; intercept; isotherm; journal; kinetic; langmuir; log; mass; min; model; mol; molecules; multilayer; neutral; new; nig; oliveri; order; pacb; parameters; pharmaceuticals; phpzc; phys; physical; plot; pore; processes; products; pseudo; radushkevich; rate; removal; sawdust; sci; second; slope; soc; solution; study; surface; system; table; temkin; temperature; thermodynamic; time; tmp; trimethoprim; unit; values; water; zac; zhang cache: jnsps-320.pdf plain text: jnsps-320.txt item: #130 of 247 id: jnsps-323 author: Mark I. Modebei; Olumide O. Olaiya; Ignatius P. Ngwongwo title: Computational study of a 3-step hybrid integrators for third order ordinary differential equations with shift of three off-step points date: 2021-11-29 words: 7762 flesch: 85 summary: = 0 such that the system is solved by the Newtons method of the form Y j+1 = Y j − (J j)−1Z j where Y = (y′0, y ′′ 0 , y1/4, y ′ 1/4, y ′′ 1/4, y1/2, y ′ 1/2, y ′′ 1/2, y3/4, y ′ 3/4, y ′′ 3/4, y1, . . . y′ n+ 32 = − 3yn 4h + yn+1 2h + yn+2 4h − h 2 ( 958907 fn 92897280 − 1048031 f n+ 14 18627840 + 1702583 f n+ 12 9676800 − 219329 f n+ 34 1555200 + 4451939 fn+1 30965760 + 2958517 fn+2 1083801600 − 128971 fn+3 2189721600 ) keywords: 10−13; 120x; 3yn; 504x; block; boundary; cpu; efficiency; error; fn+1; fn+2; fn+3; following; journal; maximum; method; modebei; order; points; problems; s3hi2; solution; step; time; value; xn+1; xn+3; y(10)(xn)h; yn+2; y′′ cache: jnsps-323.pdf plain text: jnsps-323.txt item: #131 of 247 id: jnsps-325 author: Osikoya, S. A.; Adeyefa, E. O. title: Jensen-based New Cryptographic Scheme date: 2022-02-27 words: 2888 flesch: 69 summary: This re- search is to contribute to the new research direction of develop- ing cryptographic schemes using Laplace transform as a trans- formation tool for encryption of text message from plain text to cipher text. In [1], Hiwarekar introduced the application of Laplace trans- form for cryptographic scheme using hyperbolic function as the mathematical object for the transformation of the message into ciphertext using Laplace transform. keywords: adeyefa; algorithm; ascii; cipher; coefficients; cryptographic; encryption; equation; function; jensen; key; laplace; mathematical; message; polynomial; research; resultant; scheme; security; step; table; text; transform; value cache: jnsps-325.pdf plain text: jnsps-325.txt item: #132 of 247 id: jnsps-327 author: Adebesin, B. O.; Adeniyi, J. O. ; Adimula, I. A. ; Adebiyi, S. J. ; Ikubanni, S. O. ; Adekoya, B. J. title: Current Understanding of the Equatorial E x B Drift velocities in the African Sector: A Short Review date: 2022-02-27 words: 4607 flesch: 56 summary: The space-borne drift measurements through the use of the Incoherent Scatter Radar (ISR) have been well documented over Jicamarca and Millstone Hill and had been the major source of data for modelling ionospheric vertical plasma drift [16]. [34] VHF Radar Peruvian (Jicamarca) High 50.0b 17.0 38.1 ainsignificant magnitude bEquinoctial average values 5. Conclusion and Recommendation A review of the morphology of vertical plasma drift in the African region was presented. keywords: activity; adebesin; adeniyi; adimula; african; american; b. o.; condition; current; data; daytime; density; drift; electrojet; equatorial; evening; geophys; ground; height; high; higher; hmf2; h′f; ilorin; ionosonde; ionospheric; isr; jicamarca; journal; layer; low; magnetic; magnitude; measurements; model; observations; ouagadougou; peak; period; peruvian; physics; plasma; pre; quiet; region; reinisch; res; research; sector; solar; solstice; space; table; time; values; velocities; vertical cache: jnsps-327.pdf plain text: jnsps-327.txt item: #133 of 247 id: jnsps-33 author: Abdulganiy, Ridwanulahi; Akinfenwa, Olusheye; Yusuff, Olaoluwa; Enobabor, Osaretin; Okunuga, Solomon title: Block Third Derivative Trigonometrically-Fitted Methods for Stiff and Periodic Problems date: 2020-02-28 words: 9498 flesch: 73 summary: 84)/ρ β2,1 = 1 3 (16sin (3u) u 3 + 81sin (2u) u3 + 6u4 − 54cos (u) u2 + 78cos (3u) u2 + 144cos (2u) u2 + 150sin (u) u −102sin (3u) u − 120sin (2u) u + 12u2 + 57cos (u) + 57cos (3u) + 24cos (2u) − 1080)/ρ δ3,2 = 1 4 (13sin (u) u 3 − sin (3u) u3 + 13sin (2u) u3 − 24cos (u) u2 + 24cos (2u) u2 − 87sin (u) u − 3sin (3u) u +48sin (2u) u − 288cos (u) + 72cos (2u) + 216/ρ γ3,2 = 1 24 (78cos (u) u 2 − 6cos (3u) u2 + 78cos (2u) u2 + 353sin (u) u + 13sin (3u) u − 340sin (2u) u keywords: 12cos; 24cos; abdulganiy; aguiar; akinfenwa; backward; berghe; block; btdtfm; coefficients; comparison; computational; continuous; cos; cos(u; derivative; differential; differentiation; equations; error; et al; example; figure; form; frequency; function; hybrid; initial; jator; journal; kutta; linear; mathematics; methods; multistep; nig; number; numerical; okunuga; order; ordinary; periodic; phys; problems; results; runge; sci; second; sin; sin(u; soc; solution; stability; step; stiff; systems; table; trigonometric; value; vanden; vigo cache: jnsps-33.pdf plain text: jnsps-33.txt item: #134 of 247 id: jnsps-331 author: Yusuf, A. B ; Dima, R. M; Aina, S. K title: Optimized Breast Cancer Classification using Feature Selection and Outliers Detection date: 2021-11-29 words: 6897 flesch: 54 summary: [25] M. Nilashi, O. Ibrahim, H. Ahmadi & L. Shahmoradi, “A knowledge- based system for breast cancer classification using fuzzy logic method,” Telematics and Informatics 34 (2017) 133. Breast cancer develops when cancerous tumors form on the surface of the breast cells. keywords: accuracy; algorithms; analysis; approach; area; attributes; benign; best; breast; breast cancer; cancer; cases; classification; classifiers; comparison; computer; correlation; dataset; decision; detection; diagnosis; different; disease; feature; feature selection; figure; forest; fuzzy; greatest; information; instances; international; islam; journal; knn; learning; machine; malignant; mean; medical; method; mining; model; negative; node; number; numeric; ocfs; order; outliers; pca; pearson; performance; phys; points; positive; prediction; random; research; result; sci; science; selection; soc; splitting; study; svm; systems; table; techniques; training; tree; values; variables; wdbc; wdbc dataset; work; worst; yusuf cache: jnsps-331.pdf plain text: jnsps-331.txt item: #135 of 247 id: jnsps-332 author: Danladi, Eli; Onimisi, M. Y.; Garba, S.; Ugbe, R. U.; Owolabi, J. A. ; Ige, O. O.; Ibeh, G. J.; Muhammed, A. O. title: Corrigendum to "Simulation and Optimization of Lead-Based Perovskite Solar Cells with Cuprous Oxide as a P-type Inorganic Layer [J. Nig. Soc. Phys. Sci. 1 (2019) 72–81, https://doi.org/10.46481/jnsps.2019.13]" date: 2021-08-29 words: 179 flesch: 54 summary: Sci. 1 (2019) 72–81, https://doi.org/10.46481/jnsps.2019.13]” Eli Danladia,d,∗, M. Y. Onimisia, S. Garbab, R. U. Ugbea, J. A. Owolabia, O. O. Igea, G. J. Ibeha, A. O. Muhammedc aDepartment of Physics, Nigerian Defence Academy, Kaduna, Nigeria bDepartment of Chemistry, Nigerian Defence Academy, Kaduna, Nigeria cDepartment of Physics, Bayero University, Kano, Nigeria dDepartment of Physical Sciences, Greenfield University, Kaduna, Nigeria DOI:10.46481/jnsps.2021.332 Article History : Received: 06 August 2021 Accepted for publication: 13 August 2021 Communicated by: B. J. Falaye The original content of this published Article has an error in the name of one of the co-authors Eli Danladi which was written incorrectly as D. Eli. keywords: eli; nigerian; phys; physical; sciences cache: jnsps-332.pdf plain text: jnsps-332.txt item: #136 of 247 id: jnsps-333 author: Lawani, C. O.; Ibeh, G. J.; Ige, O. O.; Danladi, Eli; Emmanuel, J. O.; Ukwenya, A. J.; Oyedare, P. O. title: Corrigendum to "Numerical Simulation of Copper Indium Gallium Diselenide Solar Cells Using One Dimensional SCAPS Software [J. Nig. Soc. Phys. Sci. 3 (2021) 48–58, https://doi.org/10.46481/jnsps.2021.133]" date: 2021-08-29 words: 185 flesch: 46 summary: Sci. 3 (2021) 48–58, https://doi.org/10.46481/jnsps.2021.133]” C. O. Lawania, G. J. Ibeha, O. O. Igea, Eli Danladia,b,∗, J. O. Emmanuela,c, A. J. Ukwenyaa,1, P. O. Oyedared aDepartment of Physics, Nigerian Defence Academy, Kaduna, Nigeria bDepartment of Physical Sciences, Greenfield University, Kasarami, Kaduna, Nigeria cDepartment of Basic Science and General Studies, Federal College of Forestry Mechanization, Kaduna, Nigeria dDepartment of Science Laboratory Technology, Federal Polytechnic Ede, Osun State, Nigeria DOI:10.46481/jnsps.2021.333 Article History : Received: 06 August 2021 Accepted for publication: 13 August 2021 Communicated by: B. J. Falaye The original content of this published Article has an error in the name of one of the co-authors Eli Danladi which was written incorrectly as D. Eli. keywords: eli; nigeria; phys; physical; sciences cache: jnsps-333.pdf plain text: jnsps-333.txt item: #137 of 247 id: jnsps-337 author: Atabo, Victor Oboni; Adee, Solomon Ortwer title: A New Special 15-Step Block Method for Solving General Fourth Order Ordinary Differential Equations date: 2021-11-29 words: 11118 flesch: 77 summary: [10] A. O. Adesanya, A. A. Momoh, M. Adamu & A. Tahir, “Five steps block method for the solution of fourth order ordinary differential equations”, International Journal of Engineering Research and Applications 5 (2012) 991. www.ijera.com [12] D. O. Awoyemi, “Algorithmic collocation approach for direct solution of fourth order ordinary differential equations”, International Journal of Computer and Mathematics 82 (2005) 321. https://doi.org/10.1080/00207160412331296634. keywords: adee; atabo; block; differential; equations; error; fn+15; fn+2; fn+3−; fn+4; fn+6; fn+7; fn+8; fn+9−; fourth; h10; h11; h12; h14; h2 fn+15; h2 fn+8; h3 fn+2; h4 fn+10; h4 fn+4; method; new; nig; ns4o15; numerical; order; ordinary; phys; problem; sci; soc; solution; step; ξ10; ξ11; ξ12; ξ14; ξ16; ξ17; ξ18; ξ19 cache: jnsps-337.pdf plain text: jnsps-337.txt item: #138 of 247 id: jnsps-34 author: Ohaegbuchu, Henry Ekene; Anyadiegwu, F. C. ; Odoh, P. O.; Orji, F. C. title: Review of top notch electrode arrays for geoelectrical resistivity surveys date: 2020-01-19 words: 6664 flesch: 61 summary: Square array resistivity surveys would be a good fit for iden- tifying environmental problems. Keywords: electrode arrays, wenner, schlumberger, dipole-dipole, pole-dipole, resistivity surveys Article History : Received: 16 September 2019 Received in revised form: 08 January 2020 Accepted for publication: 11 January 2020 keywords: advanced; apparent; applications; area; array; azimuthal; benefits; considerations; current; current electrodes; data; depth; different; dipole; dipole array; direction; distance; electrical; electrode array; electrodes; equatorial; exploration; field; figure; fractures; geoscience; gradient; gradient array; ground; image; inc; infinity; instrument; line; masse; measurements; meter; method; mise; modern; nig; ohaegbuchu; phys; point; potential; procedure; profiling; reading; receiver; resistivity; schlumberger; schlumberger array; signal; soc; sounding; spacing; square; square array; strong; survey; use; ves; water; wenner; wenner array cache: jnsps-34.pdf plain text: jnsps-34.txt item: #139 of 247 id: jnsps-346 author: Willoughby, A. A.; Soge, A. A. ; Dairo, O. F. ; Olukanni, O. D.; Durugbo, E. U. ; Michael, W. S. ; Adebayo, T. A. title: Fabrication and Characterization of a Dye-Sensitized Solar Cell using Natural Dye Extract of Rosella (Hibiscus sabdariffa L.) as Photosensitizer date: 2021-11-29 words: 3347 flesch: 52 summary: The fabricated DSSC delivered a short-circuit current of 5 µA and an open-circuit voltage of 0.637 V. DOI:10.46481/jnsps.2021.346 Keywords: dye-sensitized solar cells, rosella flowers, natural dye, energy conversion efficiency, photosensitizers, absorption spectra Article History : Received: 13 August 2021 Received in revised form: 24 September 2021 Accepted for publication: 25 September 2021 The advantages of natural dyes include their abundance in nature, environmental friendliness, and affordability. keywords: absorption; aqueous; cells; circuit; conversion; current; dsscs; dye; dyes; dyesensitized; efficiencies; efficiency; electrodes; electrolyte; energy; extract; fabricated; figure; film; flowers; groups; hydroxyl; journal; light; materials; natural; natural dye; nig; open; performance; photosensitizer; phys; region; rosella; sabdariffa; sciences; sensitized; soc; solar; solar cells; spectra; state; tio2; vis; visible; voltage cache: jnsps-346.pdf plain text: jnsps-346.txt item: #140 of 247 id: jnsps-347 author: Chidiebere, C. W.; Duru, C. E. ; Mbagwu, JP. C. title: Application of computational chemistry in chemical reactivity: a review date: 2021-11-29 words: 4767 flesch: 46 summary: Frontier molecular orbital theory is an exemplification of molecular orbital theory which elucidates HOMO/LUMO syn- ergies [34]. [4] F. Wang, L. Zhongling, L. Yan, S. Alessandro, J. M. Poblet, & C. de Graaf, “Density functional theory study of single-molecule ferroelectric- ity in Preyssler-type polyoxometalates”, APL Materials 9 (2021) 021109. keywords: application; approximations; atomic; basis; calculation; chemical; chemistry; chemists; chidiebere; computational; computational chemistry; data; density; density functional; dft; electron; energy; equation; fork; frontier; frontier molecular; functional; functional theory; fundamental; gap; good; hartree; highest; homo; journal; large; lowest; lumo; materials; method; models; molecular; molecular orbital; molecule; nig; orbital; orbital theory; particle; physical; physics; quantum; reactions; reactivity; review; science; set; single; soc; software; state; structure; study; surface; system; theory; theory study; understanding; unoccupied; use; wang; wave; work; zhang cache: jnsps-347.pdf plain text: jnsps-347.txt item: #141 of 247 id: jnsps-352 author: Magaji, I; Shuaibu, A; Abubakar, M. S; Isah, M title: Effect of Substitutional Point Defect of Gold (Au) in Indium (In) Site of Double Halide Perovskite (Cs2InSbCl6) date: 2021-11-29 words: 3606 flesch: 55 summary: Sci. 3 (2021) 334–339 Journal of the Nigerian Society of Physical Sciences Effect of Substitutional Point Defect of Gold (Au) in Indium (In) Site of Double Halide Perovskite (Cs2InSbCl6) I. Magajia,∗, A. Shuaibua, M. S. Abubakara, M. Isaha, A. Hussainia aDepartment of Physics, Faculty of Science, Kaduna State University, P.M.B, 2339, Kaduna, Nigeria Abstract Lead (Pb) free (non-toxic) perovskite solar cells materials have attracted great interest in the commercialization of the photovoltaic devices. Perovskite materials which are generally photonic materials have shown great promising qualities to replace sil- icon as solar cell materials. keywords: absorption; alloyed; application; band; bond; bulk; cell; compound; conductivity; cs2ausbcl6; defect; density; dft; dielectric; double; electronic; energy; figure; function; gap; gold; good; halide; high; higher; indium; initial; lead; length; light; material; means; modulus; optical; peaks; perovskite; photovoltaic; phys; point; properties; reflectivity; region; result; shows; soc; solar; state; structural; value cache: jnsps-352.pdf plain text: jnsps-352.txt item: #142 of 247 id: jnsps-355 author: Kure, N.; Daniel, I. H; Hamidon, N. M; Lakin, I. I; Machu, B. U; Adoyi, E. J title: Effect of Time on the Syntheses of Carbon Nanotubes via Domestic Oven date: 2022-02-27 words: 2984 flesch: 58 summary: Sci. 4 (2022) 59–63 Journal of the Nigerian Society of Physical Sciences Effect of Time on the Syntheses of Carbon Nanotubes via Domestic Oven N. Kurea,∗, I. H. Daniela, N. M. Hamidonb, I. I. Lakina, B. U. Machua, E. J. Adoyia aDepartment of Physics, Faculty of Science, Kaduna State University, Kaduna, Nigeria bInstitute of Nanoscience and Nanotechnology, Universiti Putra Malaysia, Selangor, Malaysia Abstract In this study, carbon nanotubes (CNTs) were synthesized directly on coated silicon substrate via commercial microwave oven at 2.45 GHz for 3 minutes (Sample A) and 4 minutes (Sample B). [16] T. Belin & F. Epron, “Characterization methods of carbon nanotubes: a review,” Materials Science and Engineering: B, 119 (2005) 105. keywords: band; carbon; catalyst; cnts; diameter; fesem; figure; graphite; graphitic; hrtem; image; intensity; journal; kure; materials; microwave; minutes; nanotubes; nature; oven; phys; plasma; polyethylene; precursor; properties; raman; sample; shows; structures; substrate; synthesis; temperature; twisted cache: jnsps-355.pdf plain text: jnsps-355.txt item: #143 of 247 id: jnsps-364 author: Manickavelan, K.; Ahmed, S.; Mithun, K.; Sathish, P.; Rajasekaran , R.; Sellappan, N. title: A review on Transforming plastic wastes into fuel date: 2022-02-27 words: 9039 flesch: 62 summary: Recent Developments in plastic waste pyrolysis Most of the recent works on waste plastic pyrolysis has taken place in the areas related to the use of renewable energy, biorefineries and bimetallic catalysts. When wax is the primary result of plastic pyrolysis, the recovery system must be built specifically for waxes. keywords: 64–74; analysis; applications; astm; bed; bimetallic; biomass; calorific; carbon; catalyst; catalytic; challenges; char; characteristics; chemical; commercial; content; conventional; degradation; density; diesel; different; doi; effect; energy; eng; et al; feedstock; figure; fluid; form; fuel; gas; gases; generation; hdpe; heating; high; higher; important; kolandasami; kumar; ldpe; like; liquid; low; lower; manag; material; methods; mixed; needs; nig; non; oil; parameters; pet; phys; plastic; plastic pyrolysis; plastic waste; point; polyethylene; polymers; presence; pressure; primary; process; production; products; properties; pvc; pyrolysis; pyrolysis oil; pyrolysis process; rate; raw; reaction; reactor; recovery; recycling; research; residence; review; sci; screw; singh; soc; solar; solid; study; table; technology; temperature; thermal; thermolysis; time; types; use; value; viscosity; waste; wax; work; wt.%; yield; zeolite cache: jnsps-364.pdf plain text: jnsps-364.txt item: #144 of 247 id: jnsps-371 author: Dyavappa, B. M. title: Higher order Motional Resonances Spectra of electrons with Non-linear Axial Oscillations in Quadrupole Penning trap date: 2022-02-27 words: 4645 flesch: 62 summary: When we drive the simple oscillator with a sinusoidal driving force, Figure 6: Axial resonance frequency versus square root of storage voltage we get a response at the driving frequency. A periodically forced barrel spring with a steel ball at the free end can be regarded as a model of non-linear oscillator and a periodically forced steel ball hung through a flexible rod, which is deflected alternately toward the two magnets can be regarded as a mechanical model of Duffing oscillator are developed, in analogy to observed higher order motional resonances of the electron cloud excited with different RF field powers. keywords: 75–82; axial; ball; cloud; cos; cyclotron; different; dips; duffing; dyavappa; electrons; end; equation; field; figure; force; frequencies; frequency; harmonic; higher; linear; magnetic; model; motional; motional resonances; nig; non; order; oscillator; penning; phys; potential; power; quadrupole; resonances; soc; spectra; spring; steel; storage; time; trap; voltage cache: jnsps-371.pdf plain text: jnsps-371.txt item: #145 of 247 id: jnsps-379 author: Adamu, Jamilu; Halliru, Aminu Sulaiman; Abdulhamid, Bala Ma’aji title: Pursuit differential game problem with integral and geometric constraints. date: 2022-02-27 words: 3765 flesch: 75 summary: In many studies of differential game problems, motions of the two players (i.e. pursuer and evader) are explicitly stated and are considered to be differential equations of the same order. Abstract We study pursuit differential game problem in which a countable number of pursuers chase one evader. keywords: completion; constraints; control; differential; equations; evader; functions; game; geometric; ibragimov; integral; journal; number; order; players; problem; pursuers; pursuit; space; v(t)dt; y(θ; ∣∣∣∣∣; ∣∣∣∣∣∣ cache: jnsps-379.pdf plain text: jnsps-379.txt item: #146 of 247 id: jnsps-4 author: Fagbamigbe, Adeniyi F.; Basele, Gomolemo K.; Makubate, Boikanyo; Oluyede, Broderick O. title: Application of the Exponentiated Log-Logistic Weibull Distribution to Censored Data date: 2019-03-31 words: 4760 flesch: 71 summary: Also, the value of SS from the probability plot in Figure 1 is the smallest for ELLoGW model. The likelihood function, L(Θ), of the type II doubly censored sample t(r+1),...,t(m) from the ELLoGW distribution with pdf gELLoGW (.), cdf GELLoGW (.) and survival function S ELLoGW (.) is given by L(Θ) = n! keywords: better; c)−1; c)−1 e−αt; censored; censoring; ctc−1i; data; distribution; ellogw; exponentiated; e−αt; e−αt β; figure; fit; fits; function; l(θ; likelihood; lloge; logistic; maintenance; model; new; observations; probability; right; survival; table; tci; ti s; type; value; weibull; δ−1 cache: jnsps-4.pdf plain text: jnsps-4.txt item: #147 of 247 id: jnsps-407 author: Onate, C. A; Egharevba, G. O; Bankole, D. T title: Eigensolution to Morse potential for Scandium and Nitrogen monoiodides date: 2021-11-29 words: 3051 flesch: 62 summary: Abstract The solutions for Morse potential energy function under the influence of Schrödinger equation are examined using supersymmetric approach. [19], another form of Morse potential called Shifted Morse was studied. keywords: approach; calculated; diatomic; dissociation; eigenvalues; energies; energy; equation; experimental; form; function; improved; journal; model; molecular; molecules; monoiodide; morse; nitrogen; onate; parameter; physics; potential; quantum; results; sci; screening; solutions; state; study; supersymmetric; wave; α2~2 cache: jnsps-407.pdf plain text: jnsps-407.txt item: #148 of 247 id: jnsps-414 author: Yusuf, Tunde Tajudeen; Abidemi, Afeez; Afolabi, Ayodeji Sunday; Dansu, Emmanuel Jesuyon title: Optimal Control of the Coronavirus Pandemic with Impacts of Implemented Control Measures date: 2022-02-27 words: 8911 flesch: 52 summary: In this work, we investigate optimal control strategies for containing the COVID-19 pandemic with a focus on Nigeria. Sci. 4 (2022) 88–98 98 [18] C. O. Ijalana & T. T. Yusuf, “Optimal control strategy for Hepatitis B virus epidemic in areas of high endemicity”, International Journal of Scientific and Innovative Mathematical Research, 15 (2017) 28. keywords: analysis; cases; class; conditions; contact; control; control measures; control strategy; coronavirus; cost; covid-19; days; detection; detection control; disease; dynamics; effective; efficiency; equations; figure; hospitalized; humans; individuals; infected; infectious; initial; intervention; journal; management; management control; mathematical; max; maximum; measures; min; model; new; nigeria; non; optimal; optimal control; optimality; order; outbreak; pandemic; period; personal; phys; population; prevalence; preventive; problem; protection; sci; simulations; soc; spread; state; strategies; strategy; study; symptomatic; system; testing; time; transmission; u1(t; u2(t; u3(t; u4(t; use; variables; yusuf cache: jnsps-414.pdf plain text: jnsps-414.txt item: #149 of 247 id: jnsps-417 author: Oyelami, C. A.; Akande, W.; Kolawole, T. O. title: A Preliminary Geotechnical Assessment of Residual Tropical Soils around Osogbo Metropolis as Materials for Road Subgrade date: 2022-05-29 words: 5019 flesch: 60 summary: In terms of soil strength, the maximum dry density (MDD) and optimum moisture content varies from 1210-1520 kg/m3 and 13-24 %, respectively while California Bearing Ratio (CBR) value varied between 2.27- 45.32 % at 2.5 mm and 3.01 - 44.59 % at 5.0 mm. DOI:10.46481/jnsps.2022.417 Keywords: Subgrade, subbase, geotechnics, CBR, soil strength, lateritic soils. keywords: area; atterberg; base; cbr; characteristics; compaction; construction; content; density; dry; engineering; federal; figure; geological; geology; geotechnical; gneisses; good; grade; high; higher; index; journal; kaolinite; lateritic; limits; liquid; materials; maximum; moisture; new; nigeria; obo; optimum; osogbo; osun; oyelami; percentage; phys; plasticity; poor; present; properties; quartz; residual; results; road; rocks; samples; sandy; sci; shear; silt; soc; soils; south; southwestern; specification; state; strength; study; sub; subgrade; suitable; use; values; western cache: jnsps-417.pdf plain text: jnsps-417.txt item: #150 of 247 id: jnsps-418 author: Iseh, Matthew; Usoro, Anthony; Ekong, Nsisong; Ukpe, Idara title: Juxtaposing Vertically Transmitted Infections (VTIs) and the Spread of HIV/AIDS in a Typically Infection Prevalent Region in Nigeria date: 2022-02-27 words: 4271 flesch: 63 summary: Dev Df Deviance Pr(> Chi) 1 1566 1059.3 2 1567 1059.4 -1 -0.048187 0.8265 References [1] E. A. Anigilaje, O. J. Dabit, B. Ageda, S. Hwande, T. T. Bitto, “The prevalence and predictors of HIV infection among children of mothers who missed prevention of mother to child transmission of HIV interven- tions in Makurdi, Nigeria”, J AIDS Clin Res. 4 (2013) 249. Use of antiretroviral drugs for treat- ing pregnant women and preventing HIV infection in infants. keywords: age; aids; akwa; analysis; binary; child; data; deviance; disease; distribution; dosage; drugs; health; hiv; ibom; infected; infections; likelihood; linear; logistic; logistic regression; model; mother; nigeria; odds; pregnant; prevention; probability; ratio; reduced; regression; result; state; table; test; transmission; value; variables; wald; weight; women; β̂1; β̂2 cache: jnsps-418.pdf plain text: jnsps-418.txt item: #151 of 247 id: jnsps-427 author: Onokare, E. P.; Odokuma, L. O.; Sikoki, F. D.; Nziwu, B. M.; Iniaghe, P. O.; Ossai, J. C. title: Physicochemical characteristics and toxicity studies of crude oil, dispersant and crude oil-- dispersant test media to marine organisms date: 2022-02-28 words: 8131 flesch: 63 summary: Abstract In this study, the physicochemical characteristics of crude oil, dispersant (Ecobestr) and crude oil-dispersant testsystems,and their toxicities on representative marine organismswas assessed. The test media included mechanically dispersed crude oil-in-water(MDO) and its water ac- commodated fraction (WAF), chemically dispersed crude oil-in-water (CDO) and its water accommodated fraction (CEWAF), the Dispersant (D), and a reference toxicant, sodium dodecyl sulphate (SDS). keywords: 0.43±0.01a; acute; africanus; analysis; aquatic; bacteria; bod; cdo; cewaf; characteristics; cod; concentration; crude; crude oil; department; different; different test; dispersant; dispersed; ecobestr; effect; environment; exposure; factor; fish; guineensis; habitat; hydrocarbons; journal; lc50; levels; limit; l−1; marine; mdo; media; medium; metals; methods; mg l−1; mortality; nd nd; nig; nigeria; oil; onokare; organisms; oxygen; pahs; parameters; permissible; petroleum; physicochemical; prepared; range; salinity; sci; sds; sea; significant; soc; static; studies; study; table; tds; temperature; test; test media; test organisms; times; total; toxicant; toxicity; toxicity test; tph; tss; university; value; water cache: jnsps-427.pdf plain text: jnsps-427.txt item: #152 of 247 id: jnsps-43 author: J. O. Kuboye; O. F. Quadri; O. R. Elusakin title: Solving third order ordinary differential equations directly using hybrid numerical models date: 2020-05-13 words: 4336 flesch: 94 summary: − 1) ( 3h6 s6 − 45h6 s5 +223h6 s4 − 249h6 s3 − 1193h6 s2 + Equation (1) is differenti- ated thrice to give: y ′′′ (x) = k+4∑ j=0 j( j − 1)( j − 2)a j x j−3 (2) where step number k=4. keywords: 50s; block; differential; equations; fn+1; fn+2; fn+3; fn+4; kuboye; methods; new; numerical; order; ordinary; solution; sxn; sxn2; sxn3; sxn4; value; xn2; xn3; xn4; ;  cache: jnsps-43.pdf plain text: jnsps-43.txt item: #153 of 247 id: jnsps-431 author: Odekina, Gabriel O.; Adedotun, Adedayo F.; Imaga, Ogbu F. title: Modeling and Forecasting the Third wave of Covid-19 Incidence Rate in Nigeria Using Vector Autoregressive Model Approach date: 2022-02-27 words: 4339 flesch: 61 summary: The Vector autoregressive model and Co-integrated Vector Autoregressive models are time series models used for multi- variate time series data set. DOI:10.46481/jnsps.2021.431 Keywords: Covid-19, Vector Autoregressive model, Akaike Information Criterion, Final Prediction Error, Hannan Quinn Information Criterion Article History : Received: 07 October 2021 Received in revised form: 10 February 2022 Accepted for publication: 10 February 2022 Published: 28 February 2022 c©2022 Journal of the Nigerian Society of Physical Sciences. keywords: adf; analysis; autocorrelation; autoregressive; autoregressive model; cases; coronavirus; covid-19; covid-19 cases; criterion; critical; data; deaths; disease; equation; error; february; forecast; forecasting; health; incidence; integrated; journal; lag; lockdown; model; modeling; mortality; nigeria; non; normality; number; odekina; pandemic; phys; plot; prediction; rate; research; sci; series; soc; stationary; statistic; study; table; test; time; value; variables; vector; vector autoregressive; virus cache: jnsps-431.pdf plain text: jnsps-431.txt item: #154 of 247 id: jnsps-44 author: Ndam, Joel; O. Adedire title: Comparison of the Solution of the Van der Pol Equation Using the Modified Adomian Decomposition Method and Truncated Taylor Series Method date: 2020-05-13 words: 3927 flesch: 72 summary: doi: 10.1016/j.jppr.2018.05.005 [4] I. L. El-Kalla, “Error analysis of Adomian series solution to a class of nonlinear differential equations”, Applied Mathematics E-notes 7 (2007) 214. This procedure, which generates series solutions to differential equations that converge very rapidly, is called Adomian decomposition method, named after the author [18]. keywords: absolute; adedire; adomian; analytic; approximate; comparison; component; decomposition; der; differential; doi; equation; errors; figure; journal; lindstedt; madm; mathematics; method; ndam; nig; nonlinear; order; phys; poincare; polynomials; procedure; sci; series; soc; solutions; table; taylor; ttsm; u(t; van cache: jnsps-44.pdf plain text: jnsps-44.txt item: #155 of 247 id: jnsps-45 author: Adeyefa, Emmanuel; O. S. Esan title: Exponentially Fitted Chebyshev Based Algorithm as Second Order Initial Value Solver date: 2020-03-05 words: 2336 flesch: 70 summary: Phys. Sci. 2 (2020) 51–54 53 − ( d1 − 4 ( 1 4 d2 − 1 4 e x ) x − ex ) xn −( 1 4 d2 − 1 4 e x ) ( 2x2n − 1 ) a2(2(xn + h)2 − 1) + exn +h − a1 xn − a2(2x2n − 1) − e xn (11) where Y = yn+1 keywords: differential; equation; initial; integrator; journal; methods; new; numerical; order; problems; solutions; value; yn+1 cache: jnsps-45.pdf plain text: jnsps-45.txt item: #156 of 247 id: jnsps-46 author: B. M. Dyavappa title: Energy distribution of an ion cloud in a quadrupole Penning Trap date: 2020-05-13 words: 3452 flesch: 64 summary: In the low temperature limit [14] qVq (r, z) � kBT (24) qVT (r, z) + qVq (r, z) + m 2 ωφ ( ωc −ωφ ) r2 = 0 (25) If we neglect Coulomb interaction potential Vq (r, z) then probability of energy distribution distribution function is [14] dP ( EPr,Pφ,Pz ) = A′ exp The probability density of energy distribution of ions along axial direction, in radial plane and the total probability density of energy distribution due to resulting motion of both axial and radial motion of ions under high temperature and low temperature limits in a Quadrupole Penning trap are presented here. keywords: axial; cloud; density; direction; distribution; dyavappa; energy; energy distribution; exp; figure; high; ions; kbt; limit; low; penning; plane; probability; probability density; quadrupole; radial; temperature; temperature limit; total; total probability; trap cache: jnsps-46.pdf plain text: jnsps-46.txt item: #157 of 247 id: jnsps-48 author: Mohammed, Shehu Shagari title: On Fuzzy Soft Set-Valued Maps with Application date: 2020-02-28 words: 7889 flesch: 87 summary: In line with this development, in this paper, we combine the two aforementioned notions to initiate a novel concept of set-valued maps whose range set is a family of fuzzy soft sets. Keywords: Soft set, Fuzzy soft set, Fuzzy soft set-valued map, Fuzzy soft fixed point, Weak contraction Article History : Received: 30 January 2020 Received in revised form: 14 February 2020 Accepted for publication: 15 February 2020 Published: 28 February 2020 c©2020 Journal of the Nigerian Society of Physical Sciences. keywords: applications; complete; contraction; corollary; d(u; d(u1; d(x; d(x0; d(x1; d(y; d(z; definition; e](t; following; function; fuzzy; fuzzy soft; i(e;x; journal; k)-weak; mapping; max; metric; multi; phys; point; sci; set; sets; soc; soft; soft set; space; suzuki; t x; t x]ee; t y; theorem; theory; type; u ∈; z]ee cache: jnsps-48.pdf plain text: jnsps-48.txt item: #158 of 247 id: jnsps-5 author: Adamu, L.; Hussaini, N. title: An Epidemic Model of Zoonotic Visceral Leishmaniasis with Time Delay date: 2019-05-09 words: 7137 flesch: 72 summary: = (1 − f1)ζH IH − (β + γ + µH )PH, I′V = λV ( ΠV µV − IV ) IR −µV IV, I′R = λR ( ΠR µR − IR ) IV −µR IR. [ (1 − f1)ζH IH − (β + γ + µH )PH ] +µVµR [ λV ( ΠV µV − IV ) IR −µV IV ] +λV ΠV [ λR ( ΠR µR − IR ) keywords: adamu; bifurcation; control; delay; disease; dynamics; endemic; equation; equilibrium; following; free; hand; hopf; humans; hussaini; incubation; individuals; infected; infection; i∗v; leishmaniasis; mathematical; model; negative; nig; parameter; period; phys; pkdl; population; positive; rate; real; reservoir; roots; sandflies; sandfly; sci; sign; soc; stable; susceptible; system; theorem; time; transmission; vector; visceral; zoonotic; zvl; µvµr cache: jnsps-5.pdf plain text: jnsps-5.txt item: #159 of 247 id: jnsps-502 author: Ikhioya, Imosobomeh L.; Danladi, Eli; Nnanyere, Okoli D.; Salawu, Abdulazeez O. title: Influence of Precursor Temperature on Bi Doped ZnSe Material via Electrochemical Deposition Technique for Photovoltaic Application date: 2022-02-27 words: 3516 flesch: 54 summary: Sci. 4 (2022) 123–129 Journal of the Nigerian Society of Physical Sciences Influence of Precursor Temperature on Bi Doped ZnSe Material via Electrochemical Deposition Technique for Photovoltaic Application Imosobomeh L. Ikhioyaa, Eli Danladib,∗, Okoli D. Nnanyerec, Abdulazeez O. Salawud aDepartment of Physics and Astronomy, Faculty of Physical Sciences, University of Nigeria, Nsukka, Enugu State, Nigeria bDepartment of Physics, Faculty of Science, Federal University of Health Sciences, Otukpo, Benue State, Nigeria cDepartment of Physics and Industrial Physics, Faculty of Physical Sciences, Nnamdi Azikiwe University, Awka, Anambra State, Nigeria dDepartment of Computer Science, Nile University of Nigeria Abstract In this study, Bismuth (Bi) doped ZnSe thin films were deposited on conducting glass substrates by electrochemical deposition technique and the influence of precursor temperature (room, 50, 55, 60 oC) on their optical and structural properties were systematically studied using the combined effect of X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM) and UV-VIS spectrophotometer. Bi- doped ZnSe thin film has a transparent nature, and its band gap nature results to potential support for heterojunction layers in solar cells. keywords: 50oc; 55oc; 60oc; absorbance; absorption; biznse; cells; conductivity; constant; deposition; different; electrical; electrochemical; energy; figure; films; ikhioya; increase; index; journal; material; nig; nigeria; optical; photon; physical; physics; precursor; properties; range; ray; refractive; room; science; sem; semiconductor; size; soc; solar; spectra; structural; substrates; surface; technique; temperature; thin; thin films; transmittance; wavelength; xrd; znse cache: jnsps-502.pdf plain text: jnsps-502.txt item: #160 of 247 id: jnsps-51 author: Daniel, T.; A. A. McAsule title: Measurement of the Excited Energies Identified in 42Ca using the ROSPHERE Gamma-ray Arrays date: 2020-08-01 words: 2065 flesch: 64 summary: All detected gamma energies (γ) recorded were compared with various literatures from NNDC and this shows an excellent agreement with each and the results are presented together with their calculated relative intensities. On the 1227 keV gate, gamma transitions of 145-, 264-, 382-, 437- , 810-, 815-, 910-, 917-, 1347-, 1525-, and 1645-keV were observed to be in coincidence with one another with 437-keV having the highest counts of approximately 2000 counts/keV. Looking at both Figures 1.0 and 2.0, 1227 keV and 1525 keV are coincident with each other. keywords: 192os; 42ca; beam; coincidence; current; daniel; energies; energy; figure; gamma; hpge; kev; level; measured; nuclear; nucleus; observed; physics; ray; relative; state; table; target; transitions; work cache: jnsps-51.pdf plain text: jnsps-51.txt item: #161 of 247 id: jnsps-518 author: ADEBISI, JOHN; Babatunde, Olubayo title: Green Information and Communication Technologies Implementation in Textile Industry Using Multicriteria Method date: 2022-05-29 words: 6818 flesch: 55 summary: It’s fundamental relevance to textile industry requires urgent attention than ever. Sci. 4 (2022) 165–173 167 fashion business, so this work addresses research in Green ICT specifically for Textile industry. keywords: adebisi; adoption; alternatives; analysis; application; approach; babatunde; business; chain; challenges; cloud; communication; computing; consumption; cost; criteria; data; decision; development; energy; environmental; experts; framework; friendliness; fuzzy; green; green ict; ict; impact; implementation; important; industry; information; int; making; management; method; multi; multicriteria; nig; optimization; performance; phys; power; preferred; process; production; proposed; research; results; sci; selection; services; soc; software; solutions; step; study; supplier; supply; sustainability; sustainable; systems; table; technologies; technology; telecommuting; textile; textile industry; topsis; use; user; virtualization; vvh; vvmi; work cache: jnsps-518.pdf plain text: jnsps-518.txt item: #162 of 247 id: jnsps-525 author: Akinpelu, F. O.; Oderinu, R. A.; Ohaegbue, A. D. title: Analysis of Hydromagnetic Double Exothermic Chemical Reactive Flow with Convective Cooling through a Porous Medium under Bimolecular Kinetics date: 2022-02-27 words: 4942 flesch: 62 summary: Many studies have been carried out on exothermic chemical re- active fluid flows and its applicability in energy storage sys- tems, atomic reactor plan, geophysics, polymer expulsion and MHD reactive fluid flow. The comprehensive survey on generation of heat by hydromagnetic fluid flow considering all the basic physical properties was reported in [8-9]. keywords: activation; akinpelu; analysis; boundary; channel; chemical; combustion; conductivity; convective; cooling; double; energy; equation; exothermic; figure; flow; fluid; generation; ha2; heat; hydromagnetic; increase; journal; kinetics; makinde; medium; method; mhd; nig; non; number; phys; porous; profile; reaction; reactive; residual; result; sci; second; soc; solution; step; study; system; temperature; term; thermal; transfer; values; variable; velocity; viscosity; viscous; weighted cache: jnsps-525.pdf plain text: jnsps-525.txt item: #163 of 247 id: jnsps-527 author: Emmanuel Etim (PhD) title: Benchmark Studies on the Isomerization Enthalpies for Interstellar Molecular Species date: 2023-04-18 words: 12111 flesch: 59 summary: A New Interstellar Ring Molecule”, ApJ 642 (2006) 933 [115] D. R. Johnson, F. J. Lovas, C. A. Gottlieb, E. W. Gottlieb, M. M. Litvak, M. Guélin, P. Thaddeus, “Detection of Interstellar Ethyl Cyanide”, ApJ. 218 (1977) 370. [13] F. J. Lovas, J. M. Hollis, A. J. Remijan, P. R. Jewell, “Detection of Keten- imine (CH2CNH) in Sagittarius B2(N) Hot Cores”, ApJ 645 (2006) 137. keywords: 0.0; a&a; a. j.; abundance; abundant; accurate; acid; analogue; apj; astronomical; astronomical detection; atoms; b. e.; bonding; c. a.; c3h; c5h; c5n; c5o; c5s; carbon; chain; chemistry; clouds; cnc; corresponding; cyanide; cyclic; detection; different; discovery; e. e.; e. etim; energies; energy; enthalpies; enthalpy; ether; etim; f. j.; figure; formation; gottlieb; group; group isomers; guélin; high; hollis; hydrogen; identification; interstellar; interstellar molecules; irc; irvine; ism; isocyanide; isomeric; isomeric species; isomerization; isomerization enthalpies; isomers; isomers relative; j. cernicharo; j. lovas; j. m.; j. nig; j. r.; jewell; kcal; ketene; l. e.; l. m.; lovas; m. a.; m. c.; m. guélin; m. hollis; method; methyl; methylene; microwave; mol; molecular; molecular species; molecules; new; nig; observed; ohishi; p. r.; pairs; parameters; phys; potential; present; process; radical; range; relative; remijan; rotational; sci; snyder; sources; space; species; spectroscopic; stable; stable isomers; status; structures; study; thaddeus; tmc-1; w. m.; ∆fho cache: jnsps-527.pdf plain text: jnsps-527.txt item: #164 of 247 id: jnsps-530 author: Ejegwa, P. A.; Onyeke, I. C. ; Terhemen, B. T. ; Onoja, M. P. ; Ogiji, A. ; Opeh, C. U. title: Modified Szmidt and Kacprzyk’s Intuitionistic Fuzzy Distances and their Applications in Decision-making date: 2022-05-29 words: 5368 flesch: 64 summary: DOI:10.46481/jnsps.2022.530 Keywords: Decision-making, Distance measure, Intuitionistic fuzzy set, Pattern recognition, Medical diagnosis Article History : Received: 12 December 2021 Received in revised form: 21 April 2022 Accepted for publication: 24 April 2022 Intuitionistic fuzzy sets Numerous works on IFSs have been carried out keywords: application; coefficient; correlation; decision; diagnosis; distances; ejegwa; fuzzy; fuzzy sets; i=1; ifss; iii; information; intuitionistic; intuitionistic fuzzy; journal; kacprzyk; making; measure; medical; modified; nig; novel; pattern; phys; problems; proof; recognition; sci; sets; similarity; soc; systems; szmidt; table; |νc; |υc; φ̃∗(c cache: jnsps-530.pdf plain text: jnsps-530.txt item: #165 of 247 id: jnsps-533 author: Azeez, Samsudeen Olanrewaju; Jimoh, Akeem Adebayo; Saheed, Ismaila Olalekan; Otun, Kabir Opeyemi; Mustapha, Aliru Olajide; Adekola, Folahan Amoo title: Optimization by Box Behnken Design for Eosin Yellow Dye Removal from Aqueous Medium using Date Palm Seeds-Porous Carbon@TiO2 Blend date: 2022-05-29 words: 7454 flesch: 61 summary: The results also showed the acceptability of the Box Behnken design in response surface methodology for the optimization of EYD removal from aqueous media using DPSC and TiO2-DPSC blends. Simultaneous effect of initial EYD concentration and pH The simultaneous effect of the initial EYD concentration and pH on the amount of EYD removal by DPSC and TiO2-DPSC is given in Fig. keywords: acid; adsorbent; adsorption; aqueous; area; azeez; behnken; bet; box; carbon; chem; concentration; constant; contact; date; design; dose; dpsa; dpsc; dye; dyes; effect; eng; eosin; experimental; eyd; eyd concentration; eyd removal; fig; figure; high; increase; initial; initial eyd; interaction; low; methodology; min; model; nig; optimization; optimum; organic; palm; parameters; phys; plots; pore; porous; prepared; process; quantity; removal; removed; respectively; response; response surface; results; sci; seeds; significant; simultaneous; soc; solution; studies; surface; table; terms; time; tio2; tio2dpsc; values; variables; wastewater; water; yellow cache: jnsps-533.pdf plain text: jnsps-533.txt item: #166 of 247 id: jnsps-548 author: Abdullahi, S. A.; Hussaini, N.; Habib, A. G. title: Mathematical Model of In-host Dynamics of Snakebite Envenoming date: 2022-05-29 words: 8713 flesch: 65 summary: Snake venom is the poisonous, nat- urally yellow fluid stored in the adapted salivary glands of ven- omous snakes. Snake venom is mainly categorized into three namely: cytotoxins, neurotoxins and hemotoxins, which tar- get body cells, nervous system and cardiovascular system re- spectively [14, 24]. keywords: abdullahi; accessed; action; analysis; antivenom; bites; blood; blood cells; body; cells; complexes; component; control; cytotoxic; damaged; diseases; doi; dose; dynamics; effects; elimination; envenomation; envenoming; equation; equilibrium; figure; free; global; health; hemotoxic; host; initial; journal; mathematical; model; nig; nigerian; numerical; organization; phys; physical; platelets; plos; point; quantity; rate; red; red blood; result; sci; sciences; set; simulation; snake; snake venom; snakebite; soc; society; stability; state; study; system; target; target cells; theorem; time; tissue; tissue cells; toxicon; toxins; trivial; tropical; use; venom; venom free; venom toxins; venomous; victim; viper; warrell; week; world cache: jnsps-548.pdf plain text: jnsps-548.txt item: #167 of 247 id: jnsps-55 author: Alfa, Baba; Yakubu Adamu; Daniel Alberto Pena Perez title: Optimal Power Point on the I-V Curve of a Photovoltaic Solar System (Modelling and Analysis) date: 2020-05-13 words: 7926 flesch: 62 summary: In Figure 14, the power increases to a maximum level point (highest power output value) and after some fluctuations be- came stable, the voltage input generated by the PV panel work well on the maximum value as the output voltage increases to 60 V. this power point was achieved as a result of the boost con- verter implementation. Despite the remarkable growth of this technology, it’s often characterized with low efficiency, which are mostly due to bad solar orientation or adaptation which makes it difficult to extract maximum output power from the PV panel [1]. keywords: alfa; analysis; behaviour; boost; cell; changes; circuit; conditions; converter; current; curve; different; diode; efficiency; energy; equation; figure; implementation; impp; increases; input; irradiance; load; maximum; maximum power; model; module; mppt; nig; nnskbt; output; panel; parameters; performance; photovoltaic; phys; point; power; power output; power point; pwm; resistance; resistor; rsh; sci; series; shunt; soc; solar; system; table; temperature; time; topology; value; variation; voltage cache: jnsps-55.pdf plain text: jnsps-55.txt item: #168 of 247 id: jnsps-555 author: Oluwasina, Olugbenga Oludayo title: Analysis of Adenanthera pavonine L. (Febaceae) Pod and Seed as Potential Pyrolysis Feedstock for Energy production date: 2022-05-29 words: 6056 flesch: 56 summary: Thus, the seed and pod of Adenanthera pavonine can be adjudged to be good energy biomass. Higher heating value (HHV) is used to quantify the energy worth of biomass fuel. keywords: ability; acacia; acid; activation; adenanthera; analysis; ash; bioenergy; biofuels; biomass; bioresour; carbon; cellulose; characterization; combustion; composition; content; conversion; data; degradation; different; effect; energy; experiment; extractive; feedstock; fraction; free; fuel; good; heating; hemicellulose; hhv; higher; kinetic; kjmol-1; lignin; lignocellulosic; lower; materials; matter; moisture; mol−1; nig; oil; oluwasina; parameters; pavonine; phys; plant; pod; potential; production; products; properties; proximate; pulp; pyrolysis; residue; results; sample; sci; seed; soc; solid; soluble; study; technol; temperature; thermal; thermochemical; thermodynamic; ultimate; utilization; values; volatile; water; weight; wood cache: jnsps-555.pdf plain text: jnsps-555.txt item: #169 of 247 id: jnsps-588 author: Okono, M. A.; Agbo, E. P.; Ekah, B. J.; Ekah, U. J.; Ettah, E. B.; Edet, C. O. title: Statistical Analysis and Distribution of Global Solar Radiation and Temperature Over Southern Nigeria date: 2022-08-14 words: 8192 flesch: 58 summary: Their results also showed a positive relationship between so- lar radiation and temperature for all stations, while showing a negative linear relationship between solar radiation and relative humidity. solar radiation for all locations in each zone. keywords: abakiliki; ambient; ambient temperature; analysis; annual; asaba; average; box; calabar; climate; climatic; conditions; data; distribution; eco; energy; error; false; figure; forest; gaussian; global; global solar; guinea; harcourt; irradiance; journal; kde; kendall; linear; locations; lowest; mangrove; mangrove swamp; mann; meteorological; monthly; nigeria; nst; okono; osogbo; peak; phys; plots; positive; radiation; rain; rainforest; region; regression; relationship; results; savannah; sci; sen; significance; similar; slope; soc; solar; solar radiation; southern; statistic; study; swamp; table; temperature; test; trends; value; variables; variation; vegetation; zone cache: jnsps-588.pdf plain text: jnsps-588.txt item: #170 of 247 id: jnsps-589 author: Olotu, Olusegun; Aladesaye, Charles ; Dawodu, Kazeem Adebowale title: Modified Gradient Flow Method for Solving One-Dimensional Optimal Control Problem Governed by Linear Equality Constraint date: 2022-02-28 words: 7159 flesch: 81 summary: (Z ∗)y, [where y = Z − Z∗]. For any Z̄ satisfying gZ (Z∗)Z̄ = 0, then, Z̄T LZZ (Z∗,λ∗)Z̄ > 0 where Z̄ = Z − Z∗. It indicates that the pair (Z(t),λ0(Z(t))) tends to (Z∗,λ∗) as t → ∞ provided the starting point Z0 is sufficiently close to point Z∗. Proof : We start by deploying the Poincare-Lyapunov stability theo- rem stated in Haddad et al. keywords: adekunle; akeremale; algorithm; constraint; control; convergence; definite; discretization; discretized; eqn; eqns; flow; gradient; gtz; hkθ3; hzk; linear; lk+1,1; lzk; matrix; method; mgfm; nig; numerical; objective; olotu; optimal; optimization; phys; point; positive; problem; results; scheme; sci; soc; solution; state; step; table; theorem; variables; x(t; yields; zk+2; λ0(z cache: jnsps-589.pdf plain text: jnsps-589.txt item: #171 of 247 id: jnsps-596 author: Adama, Kenneth; Onyeachu, Ikenna title: The corrosion characteristics of SS316L stainless steel in a typical acid cleaning solution and its inhibition by 1-benzylimidazole: Weight loss, electrochemical and SEM characterizations date: 2022-05-29 words: 5106 flesch: 48 summary: [13]. Apparently, not much work has been reported for imidazole derivatives as stainless steel corrosion inhibitors. Current global regulations encourage environmentally-benign molecules as corrosion inhibitors. keywords: acid; acid solution; adama; adsorption; alloy; anodic; benzylimidazole; carbon; charge; cleaning; concentration; corrosion; coupons; derivatives; efficiency; eis; electrochemical; figure; film; freundlich; hcl; i.b; immersion; industrial; inhibitor; interface; isotherm; journal; layer; liquids; loss; measurements; metal; molecular; mpy; nacl; nig; onyeachu; passivation; passive; pdp; phys; plots; polarization; potential; ppm; presence; rate; region; reported; resistance; results; sci; sem; soc; solution; ss316l; stainless; stainless steel; state; steel; surface; table; temkin; uninhibited; value; weight cache: jnsps-596.pdf plain text: jnsps-596.txt item: #172 of 247 id: jnsps-6 author: Binuyo, Adeyemi Olukayode title: Eigenvalue Elasticity and Sensitivity Analyses of the Transmission Dynamic Model of Corruption date: 2019-05-29 words: 2642 flesch: 57 summary: Creating strong and efficient anti corruption institutions: another arsenal to win the fight against corruption and the reduce the effective rate of corruption contact is for the government to establish more anti corruption agen- cies in addition to the already established ones. In order to reduce the rate of effective corruption contact among the populace, the following recommendations are necessary: 1. keywords: analysis; binuyo; class; contact; corruption; diff(mat31; dynamics; effective; eguda; eigenvalue; elasticity; government; greatest; immune; impact; individuals; mathematical; model; parameter; phys; practices; rate; reformed; respect; sensitivity; society; susceptible; time; transmission; values cache: jnsps-6.pdf plain text: jnsps-6.txt item: #173 of 247 id: jnsps-608 author: EL CHAAL, RACHID; Aboutafail, M. O. title: Statistical Modelling by Topological Maps of Kohonen for Classification of the Physicochemical Quality of Surface Waters of the Inaouen Watershed Under Matlab date: 2022-05-29 words: 4582 flesch: 64 summary: Kohonen maps (SOM) Kohonen maps are used in data analysis to project a point cloud into a two-dimensional space in a non-linear manner using a rectangular neighbourhood. keywords: analysis; artificial; caco3; chaal; chemical; classes; classification; clustering; conductivity; conference; data; database; doi; elements; error; figure; groundwater; hco3; hierarchical; high; inaouen; kohonen; learning; linear; low; m.o.aboutafail; map; maps; matrix; max; mean; min; network; neural; neuron; nh3; nig; niger; no3; parameters; pc1; pc2; phys; physico; quality; quantization; rainfall; samples; sci; self; so4; soc; solids; som; stat; study; surface; tds; technique; topological; topology; total; variables; watershed cache: jnsps-608.pdf plain text: jnsps-608.txt item: #174 of 247 id: jnsps-62 author: Osu, Bright O.; K. N. C. Njoku; B. I. Oruh title: On the Investment Strategy, Effect of Inflation and Impact of Hedging on Pension Wealth during Accumulation and Distribution Phases date: 2020-08-01 words: 6595 flesch: 69 summary: In order to deal with optimal investment strategy, the need for maximization of the expected utility of the terminal wealth became necessary. We conclude that the CRRA utility approach has little or no effect on the investment strategy, and this depicts the ef- fect of inflation on optimal investment strategy. keywords: ai+1; a±(a2−2k2; cara; ci+1; constant; contributors; crra; dead; distribution; dual; effect; figure; function; fund; inflation; interest; investment; kin; k−12; market; model; nig; noninflationary; optimal; orthogonal; osu; pension; period; phase; phys; policy; risk; sci; soc; stochastic; stock; strategies; strategy; table; time; u2s; utility; values; variable; wealth cache: jnsps-62.pdf plain text: jnsps-62.txt item: #175 of 247 id: jnsps-620 author: David, T. W.; Adekoya, Bolarinwa; Michael, Chizurumoke; Adekoya, Sofiat; Adenuga, Omolara; Kareem, Semiu; Oladunjoye, Hamid; Ajetunmobi, Abayomi; Williams, Oyindamola; Ogundele, Damilola title: A Study of the Relationship Between Southward Bz > -10 nT and Storm Time Disturbance Index During Solar Cycle 23 date: 2022-11-11 words: 6667 flesch: 58 summary: The complex structure of intense geomagnetic storms associated with the Bz > −10 nT is rare and possesses a special configuration of magnetic field and solar wind parameters structures which are CIR manifestations. The interplanetary origin of intense geomagnetic storms has been widely studied [3,12-21]. keywords: activity; analysis; classes; complex; cycle; descending; different; dst; duration; earth; energy; events; field; figure; frequency; geoeffectiveness; geomagnetic; geomagnetic storms; geophysical; gonzalez; high; imf; index; intense; intense geomagnetic; intense storms; interplanetary; journal; magnetosphere; magnitude; maximum; minimum; moderate; moderate southward; occurrence; parameters; peak; period; phase; physics; plasma; properties; research; solar; solar cycle; solar maximum; solar wind; southward; southward bz; space; speed; storms; structure; table; time; tsurutani; value; weak; wind cache: jnsps-620.pdf plain text: jnsps-620.txt item: #176 of 247 id: jnsps-621 author: Adams, S.; Joseph, E.; Kamal, G. title: Validation of Tritium Calibration Curve in CIEMAT/NIST Activity Measurement Using Non Linear Least Squared Fittings and Calculations of the Half-Life and Decay Constant of Potassium-40 date: 2022-08-20 words: 4413 flesch: 58 summary: Sci. 4 (2022) 621 3 Figure 2: Illustration model for CIEMAT/NIST method [14]. Figure 3: Efficiency calibration curve (a plot of efficiency of 40K versus tracer efficiency) of the sample εK−40and Abstract Non-linear curve fitting of tracer efficiency is one of the uncertainty contributors in CIEMAT/NIST method for specific activity measurement and half-life evaluation of radionuclide. keywords: 40k; activity; adams; analysis; associated; calibration; ciemat; constant; counting; curve; decay; different; efficiencies; efficiency; equation; figure; fit; fitting; half; interpolated; life; linear; measurement; method; nig; nist; non; order; phys; polynomial; potassium; radionuclide; relative; samples; sci; scintillation; soc; specific; squared; standard; study; table; tracer; tritium; uncertainties; uncertainty; values; εh−3 cache: jnsps-621.pdf plain text: jnsps-621.txt item: #177 of 247 id: jnsps-63 author: Aliyu Itari Abdullahi; Nuhu Degree Umar title: Application of Remote Sensing and Geoinformatics Techniques in Erosion Mapping and Groundwater Management in the River Amba Watershed, Central Nigeria date: 2021-05-29 words: 3985 flesch: 57 summary: A combination of these thematic maps and the selection of the weights yield the final map of erosion prone areas. [10],b)the study area receives significant amounts of rainfall, fact that lead to a rapid recharging of groundwa- ter resources, and c) the groundwater flow in the study area discharges through the Amba river and many springs. keywords: accumulation; aliyu; amba; area; average; benue; central; contamination; data; direction; effect; elevation; erosion; factor; farming; fig; figure; flood; flow; formation; geology; gis; groundwater; hazardous; high; intensity; journal; lafia; land; level; main; management; map; maps; nasarawa; nigeria; nuhu; phys; prone; rainfall; remote; risk; river; sci; sensing; slope; soc; soil; springs; state; study; study area; university; use; vulnerability; watershed cache: jnsps-63.pdf plain text: jnsps-63.txt item: #178 of 247 id: jnsps-637 author: Mariya Helen; V, Prabhakar title: Computational investigation of free convection flow inside inclined square cavities date: 2022-05-29 words: 6625 flesch: 64 summary: Pr = 0.71; PS & QR-cold; SR-adiabatic; PQ-hot φ Mathematica results COMSOL results 15 ◦ 45 ◦ 75 ◦ integrals appearing in the transformed residual equations are evaluated using hybrid function of block pulse function and La- grange polynomial. DOI:10.46481/jnsps.2022.637 Keywords: Penalty finite element analysis, inclined square cavities, thermal distribution, fluid distortion, Mathematica, hybrid function, numerical integration, COMSOL Article History : Received: 04 February 2022 Received in revised form: 07 April 2022 Accepted for publication: 07 April 2022 Published: 29 May 2022 c©2022 Journal of the Nigerian Society of Physical Sciences. keywords: angle; block; boundary; case; cavity; cold; comsol; conditions; convection; differential; domain; dxdy; element; equations; finite; flow; fluid; function; heat; hot; hybrid; inclination; inclined; integrals; integration; isotherms; j ∂x; j=1; journal; lagrange; mariya; mathematica; method; natural; nig; numerical; phys; polynomial; prabhakar; pulse; residual; results; sci; soc; square; streamlines; study; table; temperature; thermal; transfer; u j; wall; ∂n j; ∂ni; ∂y ∂n; ;  cache: jnsps-637.pdf plain text: jnsps-637.txt item: #179 of 247 id: jnsps-653 author: Onate, Clement; Okon, I. B.; Onyeaju, M. C.; Antia, A. D. title: Approximate Solutions of the Schrodinger Equation for a Momentum-Dependent potential date: 2022-05-29 words: 4349 flesch: 66 summary: dependent potential as En,` = De + α2~2 2µ Variation of energy En,`(eV ) against the screening parameter α(Å) with momentum dependent potential ρ1 (a) and without momen- tum dependent potential ρ0 (b) for three different quantum states with µ = ~ = l = 1, re = 0.2 Å, De = 3 eV and D0 = 6 eV . as ρ1 −→ ρ1 + α for a0 = ρ1, we can write a recurrent relation of the form ρ2 = a0 + 2α, ρ3 = a0 + 3α, ρ4 = a0 + 4α and consequently, ρn = a0 + nα. keywords: deng; dependent; dependent parameter; dependent potential; different; energy; equation; expectation; eαr; e−αr; fan; figure; function; hulthén; journal; modified; momentum; momentum dependent; nig; onate; parameter; physics; potential; quantum; sci; screening; soc; solutions; states; system; values; variation; wave; α2~2 cache: jnsps-653.pdf plain text: jnsps-653.txt item: #180 of 247 id: jnsps-664 author: Jegede, Segun L.; Lukman, Adewale F.; Ayinde, Kayode ; Odeniyi, Kehinde A. title: Jackknife Kibria-Lukman M-Estimator: Simulation and Application date: 2022-05-29 words: 8775 flesch: 72 summary: This parameter (37) is the squared root of harmonic mean of the biasing parameter used for ridge estimator. [24] Z. Y. Algamal, “A new method for choosing the biasing parameter in ridge estimator for generalized linear model”, Chemometrics and Intelli- gent (2018). keywords: bias; error; estimator; i=1; jackknife; jegede; journal; k l; ki)−1; kibria; l =; linear; lukman; mean; model; ms e; mses; multicollinearity; new; nig; ols; outliers; parameter; phys; regression; ridge; rjkl; rjkl estimator; robust; sci; simulation; soc; square; study; table; α̂k; α̂k α̂m; α̂m k; α̂rjk; α̂rjk l; λi −; ωii; − k cache: jnsps-664.pdf plain text: jnsps-664.txt item: #181 of 247 id: jnsps-682 author: Hanvey, R. R. ; Bunonyo, K. W. title: Effect of Treatment Parameter on Oscillatory Flow of Blood Through an Atherosclerotic Artery with Heat Transfer date: 2022-08-15 words: 5099 flesch: 61 summary: DOI:10.46481/jnsps.2022.682 Keywords: Blood flow, Heat Transfer, Atherosclerosis, Treatment, [1] studied the impact of treatment param- eter on blood flow in an atherosclerotic artery. keywords: arteries; artery; blood; blood flow; body; bunonyo; effect; equation; field; figure; flow; hanvey; heat; inclined; increases; influence; international; journal; magnetic; medium; mhd; number; oscillatory; parameter; porous; presence; profile; research; rt =; solution; stenosed; stenosis; study; temperature; transfer; treatment; unsteady; values; variation; velocity; w(r cache: jnsps-682.pdf plain text: jnsps-682.txt item: #182 of 247 id: jnsps-687 author: Awonusika, Richard Olu; Mogbojuri, Oluwaseun Akinlo title: Approximate Analytical Solution of Fractional Lane-Emden Equation by Mittag-Leffler Function Method date: 2022-05-29 words: 11381 flesch: 85 summary: − B 1 1B 4 1 241920 − B21B 3 1 51840  · 3991680013 = 2905085293. B 1 0(2, 1; 2) = − C 2 0,0 · 1 3 = −b00 · 1 3 = − 1 3 B 2 0(2, 1; 2) = − C 2 1,0 · 6 5 = − B10 2! · 6 5 = 1 6 · 6 5 = 1 5 B 3 0(2, 1; 2) = − C 2 2,0 · 5! 7 = − B20 4! · 5! 7 = − 1 5! · keywords: 265–280; = −; approximate; awonusika; b2,2; calculus; caputo; case; coefficients; derivative; differential; dβy(x; emden; equation; example; expansion; follows; fractional; functions; initial; k=0; lane; leffler; m=0; method; mittag; nig; nonlinear; order; p2 =; phys; problem; sci; series; soc; solution; special; value; x10; xα−β; y(x; y′(0; y′′; γ(2; γ(α; ; ;  cache: jnsps-687.pdf plain text: jnsps-687.txt item: #183 of 247 id: jnsps-69 author: Uwaheren, O. A.; Adebisi, A. F.; Taiwo, O. A. title: Perturbed Collocation Method For Solving Singular Multi-order Fractional Differential Equations of Lane-Emden Type date: 2020-08-01 words: 4288 flesch: 75 summary: Fractional order differential equation is a special kind of differential equations with fractional order derivative say α, which is a non-integer. [7] presented a numerical solution method for solving fractional differential equations using Bernstein poly- nomials. keywords: approximate; assumed; collocation; conditions; differential; differential equations; emden; equations; error; exact; example; form; fractional; journal; lane; linear; method; multi; nonlinear; numerical; order; phys; results; soc; solution; system; type; uwaheren; y(x; ;  cache: jnsps-69.pdf plain text: jnsps-69.txt item: #184 of 247 id: jnsps-699 author: Ajetunmobi, A. E.; Musthapha, A. O.; Okeyode, I. C.; Gbadebo, A. M.; Al-Azmi, D.; David, T. W. title: Assessing the need for radiation protection measures in artisanal and small scale mining of tantalite in Oke-Ogun, Oyo State, Nigeria date: 2022-08-16 words: 4160 flesch: 49 summary: Activity concentration of radionuclides in process materi- als The ranges of activity concentrations of 40K, 226Ra, 232Th and 238U in the Tantalite, Soil and rock samples are( 0.003- 1.183) Sci. 4 (2022) 699 6 Table 2: Activity concentration of radionuclides in samples of materials involved in the mining operations and 222Rn concentration in the mine air Location and material Range of activity concentrations (Bq/g) Average 222Rn con- centration ( keywords: 222rn; 226ra; 232th; 238u; 40k; activity; ajetunmobi; approach; bdl; concentrations; dose; dust; effective; eluku; exposure; gamma; graded; iaea; komu; materials; measures; mines; mining; need; nigeria; ogun; oke; open; operations; phys; pit; processing; protection; radiation; radiological; radionuclides; radon; regulatory; rock; safety; samples; scenarios; sci; small; soc; soil; table; tantalite; underground; workers cache: jnsps-699.pdf plain text: jnsps-699.txt item: #185 of 247 id: jnsps-702 author: Owolabi, Abiola T.; Ayinde, Kayode; Adejumo, Taiwo J.; Kasali, Wakeel A.; Adewuyi, Emmanuel T. title: Comparative Analysis of the Implication of Periods Before and During Vaccination of COVID-19 Infection in Some Regional Leading African Countries date: 2022-05-29 words: 7266 flesch: 56 summary: This research investigates and compares the efficiency of COVID-19 vaccines in five (5) African countries and evaluates the risk or preventive factors inherent in COVID-19 spread. In this light, this study aims at investigating the effectiveness of COVID-19 vaccines, comparing case fatality, incidence, and infection rates caused by COVID-19 in the pres- ence of non-pharmaceutical intervention (Pre-vaccination) and during the inception of pharmaceutical intervention (vaccina- tion) in five regional leading African countries. keywords: africa; analysis; arid; aridity; average; cameroon; case fatality; cases; china; climate; coronavirus; countries; country; cov-2; covid-19; covid19; daily; data; days; death; different; disease; efficacy; ethiopia; factors; fatality; fatality rate; incidence; incidence rate; index; infected; infection; infection rate; interval; journal; like; living; martonne; measures; months; morocco; new; nigeria; number; observed; outbreak; owolabi; pandemic; people; period; phys; population; positive; proportion; rate; region; risk; sars; sci; semi; soc; social; south; south africa; spread; study; table; times; total; vaccination; vaccination period; vaccine; variant; wet; world cache: jnsps-702.pdf plain text: jnsps-702.txt item: #186 of 247 id: jnsps-706 author: Familua, Adefunke Bosede; Omole, Ezekiel Olaoluwa; Ukpebor, Luke Azeta title: A Higher-order Block Method for Numerical Approximation of Third-order Boundary Value Problems in ODEs date: 2022-08-25 words: 5512 flesch: 72 summary: [29] L. O. Adoghe, B. G. Ogunware & E. O. Omole, “A family of symmet- ric implicit higher order methods for the solution of third order initial value problems in ordinary differential equations”, Journal of Theoretical Mathematics & Applications 6 (2016) 67. [34] A. S. Abdullah, Z. A. Majid & N. Senu, “Solving third order boundary value problem with fifth order block method”, Math. keywords: 10−06; 10−13; absolute; block; boundary; bvps; comparison; computational; convergence; differential; direct; equations; error; familua; form; function; hbm; hybrid; initial; international; journal; linear; mathematics; maximum; method; new; nig; non; numerical; omole; order; ordinary; phys; problem; results; sci; second; series; soc; solution; step; system; table; value cache: jnsps-706.pdf plain text: jnsps-706.txt item: #187 of 247 id: jnsps-711 author: Otobrise, C.; Orotomah, G. A. title: Estimation of Critical and Thermophysical Properties of Saturated Cyclic Alkanes by Group Contributions date: 2022-08-20 words: 5159 flesch: 68 summary: Σi NiCi + ωΣ j M j D j This can also be expressed as: Tc = tc0 ln ( Σi Nitc1i + Σ j M jtc2 j ) (6) tc0 is a constant (universal adjustable parameter) with the value 181.128 K, tc1i represents group contribution of the first order group of type-i, tc2 j represents group contribution of the second order group of type- j. keywords: adjustable; ard; chemical; contribution; critical; cycloalkanes; cyclohexane; cyclopentane; data; decahydronaphthalene; dimethyl; equation; estimation; experimental; g m; gcms; group; group contribution; lyd; m j; method; order; otobrise; pc2; prediction; properties; propyl; second; type; values cache: jnsps-711.pdf plain text: jnsps-711.txt item: #188 of 247 id: jnsps-712 author: Fatunsin, Oluwatoyin; Adeyeye, Omolola F. ; Olayinka, Kehinde; Oluseyi, Temilola title: Effect of pH on the Leaching of Potentially Toxic Metals from Different Types of Used Cooking Pots date: 2022-11-27 words: 6050 flesch: 65 summary: The results of this study therefore reveal the health implications associated with using metal pots for cooking slightly acidic foods as metals can be easily leached from the pots into the foods. Effect of pH on the amount of PTMs leached from alu- minum pot Aluminum pot sometimes referred to as pressed aluminum pots was used to boil distilled water of pHs 3 to 7 and the re- sults of analyses of the water samples for leached metals are as shown in Table 1S (Supplementary data) and Figure 1. keywords: acidic; al ≤; alabi; aluminum; aluminum pot; cast; cast pot; chromium; clay; concentration; cooked; cooking; cookware; corrosion; cr ≤; data; different; distilled; effect; environmental; et al; exposure; fatunsin; figure; food; glass; glass pot; health; heavy; higher; highest; irin; iron; journal; leached; leaching; lead; levels; limit; metals; neutral; ni ≤; nigeria; non; nonstick; physical; pot; pots; ptms; results; samples; science; soc; society; solutions; stainless; stainless steel; steel; steel pot; stick; study; table; toxic; values; water; zinc cache: jnsps-712.pdf plain text: jnsps-712.txt item: #189 of 247 id: jnsps-713 author: Shewa, G. A.; Ugwuowo, F. I. title: Combating the Multicollinearity in Bell Regression Model: Simulation and Application date: 2022-08-15 words: 4972 flesch: 74 summary: The ridge and the Liu estimator were developed to combat correlated regressors in Bell regression model. In this study, we developed a new method of parameter estimation in Bell regression model to compete with the existing ones. keywords: bell; bias; count; d)i)−2; data; distribution; e j; error; estimator; j=1; journal; k(1; ki)−1; ki)−1(e; kibria; liu; matrix; mean; method; mml; model; mse; msem; multicollinearity; new; parameter; performance; poisson; regression; regression model; ridge; simulation; squared; study; variable; variance; γ̂kd−b cache: jnsps-713.pdf plain text: jnsps-713.txt item: #190 of 247 id: jnsps-72 author: Adedire, Oludare; J. N. Ndam title: Mathematical modelling of concentration profiles for species transport through the single and the interconnected multiple-compartment systems date: 2020-05-14 words: 3970 flesch: 59 summary: Phys. Sci. 2 (2020) 61–68 Journal of the Nigerian Society of Physical Sciences Original Research Mathematical modelling of concentration profiles for species transport through the single and the interconnected multiple-compartment systems O. Adedire∗, J. N. Ndam Department of Mathematics, University of Jos, Nigeria. Keywords: Concentration profile, species, single-compartment, interconnected, multiple-compartment Article History : Received: 17 March 2020 Received in revised form: 02 May 2020 Accepted for publication: 04 May 2020 keywords: adedire; boundary; chemical; compartment; concentration; conditions; different; diffusion; diffusivities; diffusivity; doi; equations; figure; higher; initial; interconnected; i−1; journal; min; minutes; model; multiple; ndam; nig; order; phys; profile; reaction; results; sci; second; single; soc; species; system; values cache: jnsps-72.pdf plain text: jnsps-72.txt item: #191 of 247 id: jnsps-734 author: Anasthesia, A. E. ; Ibrahim, U.; Yusuf, S. D. ; Joseph, D. Z.; Flavious, N.; Sidi, M. ; Shem, S.; Mundi, A. ; Dare, A. ; Joseph, D. S. ; Ningi, Y. A. title: Diagnostic Reference Levels (DRLs) and Image Quality Evaluation for Digital Mammography in a Nigerian Facility date: 2022-05-29 words: 4073 flesch: 52 summary: [10] D. R. Dance, “Monte Carlo calculation of conversion factors for the esti- mation of mean glandular breast dose”, Phys. Med. [11] D. R. Dance, C. Skinner, K. C. Young, J. R. Beckett & C. J. Kotre, “Ad- ditional factors for the estimation of mean glandular breast dose using the UK mammography dosimetry protocol”, Phys. Med. keywords: breast; caudal; chips; cranio; criteria; diagnostic; digital; dose; drls; evaluation; factors; glandular; glandular dose; icrp; image; image quality; international; lateral; lateral oblique; level; mammograms; mammography; mean; mean glandular; medical; medio; mgy; nigeria; oblique; oblique projections; optimization; patient; phys; procedure; projections; quality; radiation; radiography; radiological; reference; score; study; table; tissue; tld; university; values cache: jnsps-734.pdf plain text: jnsps-734.txt item: #192 of 247 id: jnsps-740 author: O. Martins, Titus ; A. Ofudje, Edwin ; A. Ogundiran, Abimbola ; A. Ikeoluwa, Ojo ; A. Oluwatobi, Osipitan ; F. Sodiya, Ezekiel; Ojo, Opeyemi title: Cathodic Corrosion Inhibition of Steel by Musa Paradisiaca Leave Extract date: 2022-11-05 words: 6128 flesch: 58 summary: DOI:10.46481/jnsps.2022.740 Keywords: Corrosion, corrosion inhibitor, desorption, green chemistry, M. paradisiaca, mild steel Article History: Received: 27 March 2022 Received in revised form: 25 June 2022 Accepted for publication: 09 September 2022 Published: 05 November 2022 This has resulted in the synthesis of corrosion inhibitors that are envi- ronmentally affable and are called Organic Corrosion Inhibitors (OCI) keywords: acid; acidic; activation; adsorption; analysis; chem; chemical; cm−1; concentration; constant; corrosion; corrosion inhibitor; corrosion rate; coupons; different; effect; efficiency; electrons; endothermic; energy; equation; experiment; extract; extraction; figure; functional; green; hcl; hours; hydrochloric; immersion; increase; inhibitor; investigation; iron; isotherm; leaves; loss; low; martins; mater; mechanism; media; medium; metal; mild; molecules; mpl; musa; nig; paradisiaca; physical; plant; present; process; properties; quraishi; rate; reaction; rise; sci; soc; solution; steel; study; surface; table; temperature; time; value; weight cache: jnsps-740.pdf plain text: jnsps-740.txt item: #193 of 247 id: jnsps-746 author: Mohammad Tanko, Musa; Liman, Muhammad Sanusi; Lumbi, Williams Lucas; Aliyu, Umar Sa'ad; Sarki, Musa Usman title: Field Strength Variability Mapping of Nigeria date: 2022-08-15 words: 3794 flesch: 60 summary: The result shows a seasonal variation with higher field strength variability during the dry season and lower field strength variability during the wet season. Higher temperature give rise to higher field strength variability while the reverse is the case with humidity as can be seen on the temperature and hu- midity contours. keywords: antenna; atmosphere; coastal; country; dry; field; field strength; figure; higher; humidity; january; lower; march; maximum; moisture; nigeria; output; period; pressure; propagation; quarter; radio; rainforest; refractivity; sahel; savannah; season; spatial; stations; strength; strength variability; study; surface; temperature; tropical; values; variability; variation; wave; wet; zone cache: jnsps-746.pdf plain text: jnsps-746.txt item: #194 of 247 id: jnsps-751 author: Lakshmi, S. Ponsadai; Deepa, R.; Sankari, S. Ganapathy; Jeyachandran, M. title: Pollution Status of Groundwater Resources Through Hydrochemical Characteristics - A Case Study From Southern India date: 2022-11-07 words: 7508 flesch: 61 summary: From the identified twenty locations, water samples were collected. In this study area 19 bore wells and one open well were selected for collecting water samples during the study period. keywords: acceptable; agricultural; alkalinity; area; borewell; calcium; characteristics; chemical; chloride; collected; concentration; content; desirable; district; drinking; electrical; fig; figure; fluoride; frequency; frequency histogram; groundwater; groundwater samples; guideline; hardness; health; higher; highest; histogram; human; india; ion; journal; lakshmi; limit; magnesium; mayiladuthurai; median; nadu; nature; nig; nitrate; parameters; percentage; percentage frequency; phosphate; physical; potassium; presence; present; profile; profile b; purposes; quality; range; research; results; river; samples; sampling; sar; sci; sciences; soc; sodium; soil; stations; study; sulphate; tamil; tds; total; values; waste; water cache: jnsps-751.pdf plain text: jnsps-751.txt item: #195 of 247 id: jnsps-769 author: Udeze, Chinedu L.; Eteng, Idongesit E.; Ibor, Ayei E. title: Application of Machine Learning and Resampling Techniques to Credit Card Fraud Detection date: 2022-08-15 words: 5203 flesch: 55 summary: Credit card fraud detection is often carried out using large datasets and historical data. [8] C. Ivo, F. Fabiana & S. Inna, “Industry paper: The uncertain case of credit card fraud detection,” Proceedings of the 9th ACM In- ternational Conference on Distributed Event-based Systems, (2015), https://dl.acm.org/doi/10.1145/2675743.2771877 [9] S. Ishan, P. Rameshwar & N. Ullas, “Ensemble learning for credit card fraud detection”, The ACM India Joint International Conference on Data Science and Management of Data, (2018), https://dl.acm.org/doi/10.1145/3152494.3156815 [10] H. T. Phuong, P. T. Kim, T. H. Truong, H. Cedric, H. T. Phuong & H. L. Thi, “Real time data-driven approaches for credit card fraud detection”, Proceedings of the 2018 International Conference on E-business and Ap- plications, (2018), https://dl.acm.org/doi/10.1145/3194188.3194196 [11] A. Artikis, N. Katzouris, I. Correia, C. Baber, N. Morar, I. Skarbovsky, F. Fournier & G. Paliouras,“A prototype for credit card fraud man- agement: industry paper”, The Proceedings of the 11th ACM Inter- national Conference on Distributed and Event-Based Systems (2017), https://dl.acm.org/doi/10.1145/3093742.3093912 [12] F. Kang, C. Dawei, T. Yi & Z. Liqing, “Credit card fraud de- tection using convolutional neural networks,” International Con- ference on Neural Information Processing. keywords: accuracy; algorithms; analysis; approach; baseline; better; card; class; classifier; conference; confusion; credit; credit card; dataset; deep; detection; dnn; et al; evaluation; features; figure; forest; fraud detection; fraudulent; hmm; international; journal; learning; legitimate; machine; matrix; method; metrics; model; network; neural; nig; oversampling; performance; phys; physical; precision; random; recall; records; research; results; sci; score; soc; split; system; table; techniques; tensorflow; training; transactions; udeze; undersampling; validation; xgboost cache: jnsps-769.pdf plain text: jnsps-769.txt item: #196 of 247 id: jnsps-777 author: Sunday, J.; Kumleng, G. M.; Kamoh, N. M.; Kwanamu, J. A.; Skwame, Y.; Sarjiyus, O. title: Implicit Four-Point Hybrid Block Integrator for the Simulations of Stiff Models date: 2022-05-29 words: 7114 flesch: 75 summary: − xn+5/2)(x − xn+7/2)(x − xn+4) ( − xn+5/2)(x − xn+3)(x − xn+7/2)(x − xn+4) (xn − xn−1)(xn keywords: 10−4; 15s; accuracy; authors; block; chemical; computational; dibbdf; differential; drug; equations; error; figure; fn+; fn+2; fn+3; fn+4; fn−1; form; fphbi; hybrid; implicit; implicit fphbi; integrator; journal; mathematics; method; models; new; nig; nigerian; numerical; order; ordinary; pharmacokinetics; phys; physical; points; pol; polynomial; problem; rate; region; results; s(s; sci; sciences; simulations; soc; society; solution; stability; stable; step; stiff; stiffness; sunday; test; time; van; xn)(x; xn+2)(x; xn+4; xn+5/2)(x; xn−1; λyn+ cache: jnsps-777.pdf plain text: jnsps-777.txt item: #197 of 247 id: jnsps-787 author: Odion, P. O.; Musa, M. N.; Shuaibu, S. U. title: Age Prediction from Sclera Images using Deep Learning date: 2022-08-15 words: 5281 flesch: 55 summary: [12] S. Das, I. D. Ghosh & A. Chattopadhyay, “Deep age estimation using sclera images in multiple environment”, Applied Information Processing Systems (2022) 93. Experiment was conducted to determine how accurately the age group of a person can be classified from sclera images using pre- trained CNN architectures. keywords: accuracy; age; age estimation; aging; architecture; art; classification; cnn; computer; conference; dataset; deep; different; efficientnet; estimation; eye; facial; features; figure; group; human; images; international; iris; journal; layer; learning; machine; method; metrics; mobilenetv2; models; network; neural; nig; nigerian; number; odion; otsu; performance; phys; physical; pre; precision; prediction; problem; processing; recall; recognition; region; research; retina; scaling; sci; sciences; sclera; score; segmentation; soc; society; state; study; table; use; vgg-16; vision; ; × cache: jnsps-787.pdf plain text: jnsps-787.txt item: #198 of 247 id: jnsps-796 author: R. E. Mfon; Deshi, J. J. ; Al Amri , Z.; Madugu, J. S. title: Biochemical synthesis, characterization and electrodeposition of silver nanoparticles on a gold substrate date: 2022-08-14 words: 3665 flesch: 56 summary: Thus if larger grains are de- sired, Og- silver nanoparticles should be used but for smaller, well- packed grains, the Va- silver nanoparticles should be em- ployed. Sci. 4 (2022) 796 Journal of the Nigerian Society of Physical Sciences Biochemical synthesis, characterization and electrodeposition of silver nanoparticles on a gold substrate R. E. Mfona,b,∗, J. J. Deshic, Z. Al Amria,d, J. S. Madugue a School of Physics, H.H Wills Physics Laboratory Tyndall Avenue, University of Bristol, Bristol BS8 1TL United Kingdom b Department of Physics, Federal University of Lafia, P.M.B 146 Lafia, Nasarawa State, Nigeria c Chemistry Department, Modibbo Adama University of Technology, P.M.B. 2076,Yola, Adamawa State, Nigeria d Engineering Department, University of Technology and Applied Sciences, Salalah Dhofar Region, Thumrait Rd, 211 Salalah, Sultanate of Oman e Department of Pure and Applied Physics, Adamawa State University,P.M.B 25, Mubi, Adamawa State, Nigeria Abstract Silver nanoparticles (AgNPs) antibacterial and antimicrobial properties have made them useful in the fields of medicine, for health care, consumer products, industrial purposes and more specifically food packaging industries. keywords: agnps; cm2; coefficient; coverage; current; diffusion; electrochemical; electrodeposition; equation; figure; film; food; gold; journal; leaf; methods; mfon; migration; nanoparticles; nig; packaging; peak; phys; process; properties; rate; scan; sci; shows; silver; silver nanoparticles; size; soc; substrate; surface; synthesis; thin; time; university; vasilver cache: jnsps-796.pdf plain text: jnsps-796.txt item: #199 of 247 id: jnsps-797 author: Olaiya, Olumide O.; Modebei, Mark I.; Bello, Saheed A. title: A One-Step Block Hybrid Integrator for Solving Fifth Order Korteweg-de Vries Equations date: 2022-08-19 words: 5826 flesch: 76 summary: [2] G. Amit, J. Singh & D. Kumar, “A reliable algorithm for KdV equations arising in warm plasma”, Nonlin. [7] P. D. Lax, “Integrals of nonlinear equations of evolution and solitary waves”, Commun. keywords: block; coefficients; derivatives; derived; differential; equation; error; exact; example; fifth; figure; form; hybrid; integrator; journal; k=1(1)5; kdv; korteweg; linear; matrix; method; modebei; nig; nigerian; nonlinear; numerical; olaiya; order; ordinary; pdes; phys; physical; problems; region; sci; sciences; soc; society; solution; stability; step; system; table; time; vries; waves; work; y(v; y(x; ym+1; ∣∣∣∣∣ cache: jnsps-797.pdf plain text: jnsps-797.txt item: #200 of 247 id: jnsps-812 author: Ngwu, Benitho; Mbah, Godwin C. E.; Mmaduakor, Chika O.; Isienyi, Sunday; Ajewole, Oghenekevwe R.; Ajibade, Felix D. title: Characterisation of Singular Domains in Threshold-Dependent Biological Networks date: 2022-08-20 words: 7640 flesch: 67 summary: Using the result of equation (33), the number of thresholds walls associated with these thresholds is 1(1 + 1) × Classifying transparent wall as decreasing or increasing reveals the behaviour of variable in the vicinity of threshold walls. keywords: analysis; behaviour; black; boundaries; boundary; boxes; class; control; definition; differential; discontinuous; domains; equation; example; figure; filippov; focal; function; hyperplane; journal; linear; models; nature; network; number; order; piecewise; points; properties; proposition; qualitative; regulatory; result; said; singular; solution; stability; state; study; switching; systems; threshold; transparent; variable; vector; walls; white; ẋ1; ẋ2 cache: jnsps-812.pdf plain text: jnsps-812.txt item: #201 of 247 id: jnsps-818 author: Alzaki, Lamees K.; Jassim, Hassan Kamil title: Time-Fractional Differential Equations with an Approximate Solution date: 2022-08-18 words: 4712 flesch: 70 summary: DOI:10.46481/jnsps.2022.818 Keywords: Fractional differential equations, Homotopy perturbation method, Sumudu transform Article History : Received: 16 May 2022 Received in revised form: 05 July 2022 Accepted for publication: 26 July 2022 Published: 18 August 2022 There is a significant literature dealing with the subject area of approximating solutions to fractional differential equations ∗Corresponding author tel. keywords: alzaki; analytical; applications; applied; approximate; baleanu; decomposition; definition; derivative; differential; diffusion; e2µ; engineering; equations; fractional; function; homotopy; jassim; journal; local; method; n=0; nig; nonlinear; operator; order; partial; perturbation; phys; pnϕn(µ,τ; sci; science; soc; solutions; sumudu; s−1; technique; time; transform; γ(δ; τ2δ; ωδs; ϕ(µ; ∂µ2 cache: jnsps-818.pdf plain text: jnsps-818.txt item: #202 of 247 id: jnsps-82 author: Badakaya, Abbas Ja'afaru; Muhammad, Bilyaminu title: A Purusit Differential Game Problem on a Closed Convex Subset of a Hilbert Space date: 2020-08-01 words: 3602 flesch: 82 summary: We define a pursuit differential game problem in which count- able but finite number of pursuers P j, j ∈ J = {1, 2, . . . Results To present our result, we need the following notations: ρ2 := m∑ j=1 ρ2j and σ j := σ ρ ρ j, f or j ∈ keywords: 2dt; a(t; admissible; b(t; closed; constraints; control; convex; differential; evader; functions; game; ibragimov; integral; j(t; j−1; players; problem; pursuers; pursuit; set; space; strategy; subset; v(t; win; x10 cache: jnsps-82.pdf plain text: jnsps-82.txt item: #203 of 247 id: jnsps-820 author: Aweda, Francis Olatunbosun; Akinpelu, Jacob Adebayo; Samson, Timothy Kayode; Sanni, Mohammed; Olatinwo, Bukunmi Sunday title: Modeling and Forecasting Selected Meteorological Parameters for the Environmental Awareness in Sub-Sahel West Africa Stations date: 2022-08-12 words: 6361 flesch: 57 summary: Abidjan Figure (Aa, Ba, Ca, Da, Ea.) revealed that air temperature had a sig- nificant effect on the other parameters considered, as shown in Figure 2(Aa), the temperature got to it minimum T = 24.4 oC in August, while relative humidity got to it minimum RH = 71.9% in January and maximum temperature T = 27.9 oC was recorded in February while the maximum relative humidity 2 Aweda et al. / J. Nig. Therefore, the forecast model indicates that maximum temperature are expected in February, March, April, and June while minimum temperatures in January, August, December. keywords: abidjan; abuja; air; analysis; april; ari; arima; atmospheric; august; aweda; bamako; climate; conakry; correlation; dakar; data; different; direction; effect; environmental; february; figure; forecasting; gautam; hpa; humidity; increase; january; journal; ma(1,0,1)(1,0,1)12; maximum; maximum temperature; meteorological; minimum; modelling; models; monthly; months; niamey; nig; parameters; phys; pressure; rainfall; region; relative; research; result; sci; series; significant; soc; speed; station; statistical; study; temperature; time; value; variation; wind cache: jnsps-820.pdf plain text: jnsps-820.txt item: #204 of 247 id: jnsps-823 author: Anya, Augustine Igwebuike; Ofe, Uko; Khan, Aftab title: Mathematical Modeling of Waves in a Porous Micropolar Fibrereinforced Structure and Liquid Interface date: 2022-08-20 words: 4869 flesch: 64 summary: [10] D. G. Albert, “A comparison between wave propagation in saturated and air-saturated porous materials”, Journal of Applied Physics 73 (1993) 28. Sci. 4 (2022) 823 5 [4] C. G. Knott, “Reflection and refraction of elastic waves with seismolog- ical Applications”, The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science 48 (1899) 64. keywords: abd; abo; alla; anisotropic; anya; boundary; conditions; dahab; elastic; eqs; fibre; half; incident; interface; international; journal; jω2ρ; khan; liquid; longitudinal; materials; mathematical; media; medium; micropolar; modeling; nig; nigerian; p21; p21 p; phase; physical; plane; porous; propagation; qlt; quasi; reflection; rotation; sciences; singh; society; solid; space; structure; surface; transmission; velocity; voids; waves; ωκρ cache: jnsps-823.pdf plain text: jnsps-823.txt item: #205 of 247 id: jnsps-832 author: Shagari, Shehu Magawata; Gabi, Danlami; Dankolo, Nasiru Muhammad ; Gana, Noah Ndakotsu title: Countermeasure to Structured Query Language Injection Attack for Web Applications using Hybrid Logistic Regression Technique date: 2022-10-01 words: 6030 flesch: 50 summary: [2] S. O. Uwagbole, W. J. Buchanan & L. Fan, “Applied machine learning predictive analytics to SQL injection attack detection and prevention”, IFIP/IEEE Symposium on Integrated Network and Service Management (IM) (2017) 1087. [6] S. O. Uwagbole, W. J. Buchanan & L. Fan, “Applied machine learning predictive analytics to SQL injection attack detection and prevention”, IFIP/IEEE Symposium on Integrated Network and Service Management (IM) (2017) 1087. keywords: accuracy; algorithm; analysis; applications; approach; attack; computing; conference; database; dataset; dbms; default; detecting; detection; developed; document; engineering; environment; equation; evaluation; fpr; frequency; improved; injection; international; internet; inverse; itfidf; journal; learning; logistic; machine; metrics; model; nig; number; paper; parameter; performance; phys; precision; prevention; query; rate; recall; record; regression; research; sample; sci; score; section; security; shagari; soc; software; specificity; sql; sql injection; sqlias; svm; system; table; techniques; term; training; web; word cache: jnsps-832.pdf plain text: jnsps-832.txt item: #206 of 247 id: jnsps-834 author: Ajileye, Ganiyu ; James, Adewale; Abdullahi, Ayinde ; Oyedepo, Taiye title: Collocation Approach for the Computational Solution Of Fredholm-Volterra Fractional Order of Integro-Differential Equations date: 2022-10-03 words: 4341 flesch: 77 summary: (t) dt ] d s. Subtract (8) from (18) gives EN (x) = yN (x) − y(x). − 0.16454e − 5x5 ) keywords: approximate; boundary; collocation; conditions; differential; equations; exact; example; fractional; fredholm; integro; journal; mathematics; method; nig; numerical; order; p1y; phys; problems; s)α−1; sci; soc; solution; table; volterra; y(x; γ(α; λ2 ∫; φ(s; φ(t; − ∫ cache: jnsps-834.pdf plain text: jnsps-834.txt item: #207 of 247 id: jnsps-835 author: Iorhuna, Boniface Tersoo; Awuhe, Timothy Tertsea; Azuaga, Igbalagh Chia; Isaac, Ernest; Shuaibu, Faisal; Yohanna, Banwala title: Synthesis, Characterization and Antimicrobial Activities of Copper-Tea Leaves (Camellia Sinensis) Extract Nanoparticles.: None date: 2022-11-10 words: 3076 flesch: 51 summary: Test for Saponins: a test-tube containing 4 mL of aqueous extract of Tea Leaves was vigorously shaken, and a 1 cm foam layer was formed which indicated the presence of saponins [11]. Test for Phenols: to a 2.5 mL of ethanol was added equal volume of Tea Leaves extract and a few drops of iron(III) chlo- ride. Sci. 4 (2022) 835 4 (a) (b) Figure 3: (a) UV-visible spectrum of synthesized copper nanoparticles, (b) UV- visible spectrum of Tea Leaves extract. keywords: activity; agents; analysis; antibacterial; antimicrobial; camellia; capping; characterization; coli; colour; copper; cunps; escherichia; extract; figure; flavonoids; ftir; green; journal; leaves; leaves extract; materials; mixture; nanoparticles; nigeria; phenols; physical; phytochemicals; presence; properties; reduction; sciences; sinensis; society; spectrum; state; steroids; synthesis; synthesized; table; taraba; tea; tea leaves; test cache: jnsps-835.pdf plain text: jnsps-835.txt item: #208 of 247 id: jnsps-842 author: Adesokan, S. A.; Giwa, A. A.; Bello, I. A. title: Environmental, Health and Economic Implications of Emerging Contaminants in Nigeria Environment date: 2022-08-19 words: 7619 flesch: 49 summary: In a period of 19 years (1990-2009), Nigeria population increased by 59,065,292 (Table 1) and the pesticides application increased by 115,000 metric tons. It was estimated that Nigeria pharmaceutical market grew at 13% annually. keywords: abuse; additives; adesokan; agrochemicals; amoxicillin; application; applied; aquatic; available; average; care; ccl; chemicals; chemistry; classes; common; concentrations; concern; contaminants; control; delta; diclofenac; diseases; doi; drinking; drugs; eccs; economic; economy; ecosystem; effects; endocrine; environment; estimated; evaluation; exposure; factors; flame; food; frs; general; glyphosate; health; herbicides; high; human; impact; implications; increase; industrial; information; international; journal; lagos; level; list; management; materials; maximum; medium; metric; new; nigeria; nigeria environment; oil; oyo; personal; pesticides; pharmaceutical; phase; phys; plastic; plasticizers; poisoning; pollutants; pollution; population; potential; ppcps; presence; products; public; recommendations; regulatory; research; resources; retardants; review; risk; river; sci; season; soc; south; state; study; substances; surface; threshold; time; tons; united; university; usage; vich; wastes; water; weeding; worth; yearly cache: jnsps-842.pdf plain text: jnsps-842.txt item: #209 of 247 id: jnsps-843 author: Chouit, El Mehdi; RACHDI, Mohamed ; BELLAFKIH, Mostafa; RAOUYANE, Brahim title: Forecasting of the epidemiological situation: Case of COVID-19 in Morocco date: 2022-10-11 words: 4463 flesch: 64 summary: He concluded that STARIMA models are more reliable in forecast- ing future epidemics of COVID-19 than ARIMA models due to the inclusion of spatial information i.e. neighboring effect in the form of the spatial weight matrix. For the illustrated dataset, the STARIMA model has only three parameters for the three locations, whereas ARIMA model has numerous parameters, under such cases pa- rameterization may prompt to lower sum of squares of residu- als. keywords: analysis; arima; autoregressive; average; cases; chouit; coronavirus; country; covid-19; daily; data; dataset; deaths; different; disease; epidemic; error; fbprophet; figure; forecasting; future; government; impact; journal; mae; march; mean; measures; metrics; model; morocco; moving; nig; number; outbreak; pandemic; people; phys; prediction; recovered; results; rmse; sci; sciences; series; soc; spread; statistical; study; table; time; transmission; virus cache: jnsps-843.pdf plain text: jnsps-843.txt item: #210 of 247 id: jnsps-844 author: Babarinsa, Olayiwola title: Graph Theory: A Lost Component For Development in Nigeria date: 2022-08-20 words: 6264 flesch: 74 summary: This article shows the paucity, importance, and necessity of graph theory in the development of Nigeria. Introduction The mathematical structures used to model pairwise relation- ships between things are studied in graph theory. keywords: adjacency; analysis; applications; babarinsa; bridges; classification; degree; doi; dual; e(g; edges; energy; euler; f.c.t; figure; g 0; graph; graph theory; gutman; instance; interaction; journal; kogi; konigsberg; laplacian; lokoja; map; mathematics; matrix; minimum; mixed; nigeria; non; number; paucity; people; phys; planning; representation; research; science; set; simple; simple graph; soc; spectrum; state; table; theory; types; undirected; vertex; vertices; vol; weighted cache: jnsps-844.pdf plain text: jnsps-844.txt item: #211 of 247 id: jnsps-848 author: Makubate, Boikanyo; Matsuokwane, Marang ; Oluyede, Broderick O.; Gabaitiri, Lesego; Chamunorwa, Simbarashe title: The Type II Topp-Leone-G Power Series Distribution with Applications on Bladder Cancer date: 2022-08-15 words: 4125 flesch: 63 summary: Figure 1b shows that the special case TIITLWP distribution can capture upside-down bathtub followed by bathtub and uni-modal shapes hazard rate function(s). Therefore, modifications of the well-established distributions are highly recommended to obtain more flexible new families of distributions. keywords: applications; bathtub; bladder; cancer; class; data; distribution; doi; exponentiated; family; fit; function; g2(xi; generalized; i=1; journal; leone; likelihood; log; makubate; maximum; model; moment; new; non; odd; oluyede; parameter; plots; poisson; power; properties; section; series; statistics; tiitlgps; tiitlwp; topp; type; weibull; θ[1; ψ)]b cache: jnsps-848.pdf plain text: jnsps-848.txt item: #212 of 247 id: jnsps-854 author: Sodeinde, K. O.; Animashaun, S. A.; Adubiaro, H. O. title: Methods for the Detection and Remediation of Ammonia from Aquaculture Effluent: A Review date: 2022-12-08 words: 8682 flesch: 48 summary: [94] E. H. Eding, A. Kamstra, J. A. J. Verreth, E. A. Huisman & A. Klap- wijk, “Design and Operation of nitrifying trickling filters in recirculating aquaculture:a review”, Aquac. [103] Y. Ding, Z. Guo, J. Mei, Z. Liang, Z. Li & X. Hou, “Investigation into the novel Micro algae membrane bioreactor with internal circulating fluidized bed for marine aquaculture wastewater treatment”, Membranes 10 (2020) 353. keywords: adsorption; advantages; agricultural; algae; ammonia; ammonia nitrogen; ammonia removal; ammonia treatment; ammonium; analysis; analytical; application; aquaculture; aquaculture effluent; aquaculture wastewater; aquatic; aqueous; area; batch; bed; biological; bioreactor; carbon; cations; chitin; chitosan; clay; concentration; continuous; cost; degradation; detection; determination; development; different; diffusion; direct; dosage; effective; effects; efficiency; effluent; electrochemical; electrode; eng; environmental; et al; exchange; fertilizers; figure; filters; fish; flow; fluidized; fluorometric; food; friendly; gas; generation; high; impacts; important; injection; international; journal; large; levels; lin; liu; major; management; materials; medium; membrane; method; microorganisms; modified; municipal; nanomaterials; natural; nessler; nh4; nig; nigeria; nitrite; nitrogen; non; organic; organisms; oxidation; oxygen; parameters; performance; phenate; phosphate; phys; pollutants; presence; process; processes; properties; rate; reaction; reagent; release; remediation; removal; result; review; salt; samples; scale; sci; sensitive; sensitivity; soc; sodeinde; soil; solution; surface; sustainability; system; temperature; time; tio2; total; toxic; treatment; use; wang; wastewater; wastewater treatment; waters; wetlands; zhang cache: jnsps-854.pdf plain text: jnsps-854.txt item: #213 of 247 id: jnsps-86 author: Edikan E. Akpanibah; Ini, Udeme title: Portfolio Strategy for an Investor with Logarithm Utility and Stochastic Interest Rate under Constant Elasticity of Variance Model date: 2020-08-01 words: 6603 flesch: 78 summary: − 2βσa1 √ r √ q f2rq f3 (T, r, q) = 0 (72) Let f1 (t, r, q) = K0 (t, r) + qK1 (t, r) (73) and( f1t = K0t + qK1t, f1q = K1, f1qq = 0 ) (74) D7 (T, r) = 0 (51) D8t − 2µβD8 keywords: akpanibah; asset; cev; constant; equation; free; function; interest; investment; investor; logarithm; marketable; model; nig; optimal; pension; phys; portfolio; ra21; risk; sci; security; soc; solution; solving; stochastic; strategies; strategy; substituting; time; utility; volatility; σa1 cache: jnsps-86.pdf plain text: jnsps-86.txt item: #214 of 247 id: jnsps-865 author: Joseph, Folake Lois ; Olagunju, Adeyemi Sunday; Adeyefa, Emmanuel Oluseye; James, Adewale Adeyemi title: Hybrid Block Methods with Constructed Orthogonal Basis for Solution of Third-Order Ordinary Differential Equations date: 2022-12-22 words: 8832 flesch: 84 summary: − 3 α 2 3 (t) = 9t2 2 + 15t 2 + 3 β0(t) = fnh 3 ( 3 280 t7 − 1 1811776004788461600 t6 − 7 240 t5 − 1 48 t4 + 1 523827403997699330 t3 + 7 2160 t2 + 9 9349 t [ k∑ j=1 jqα j − q(q − 1)(q keywords: block; continuous; differential; equations; error; fn+; fn+1; fn+2; function; hybrid; j(x; joseph; journal; mathematics; methods; nig; numerical; order; ordinary; orthogonal; phys; points; polynomials; problem; sci; second; soc; solution; step; xn+; y′′n; ×10−6 cache: jnsps-865.pdf plain text: jnsps-865.txt item: #215 of 247 id: jnsps-867 author: AKINOLA, EMMANUEL; Oderinu, Rasaq Adekola; Alao, Saheed; Opaleye, Emmanuel title: An Integral Transform-Weighted Residual Method for Solving Second Order Linear Boundary Value Differential Equations with Semi-Infinite Domain date: 2022-11-11 words: 3675 flesch: 65 summary: Motivation The reason for compling the two methods is to be able to solve boundary value problems within semi-infinite domain by the process of Adoodh Transform method as Adoodh Trans- form cannot independently deal with boundary condition at in- finity naturally. Nigeria Abstract Solving boundary value problem with semi-infinite domain in a conventional way or using some of the available approximate methods poses a lot of challenges or better still seems almost impossible over the years, and some of the alternative ways for crossing this hurdle is by fixing value for infinity that is in the domain. keywords: 10−11; aboodh; akinola; applied; boundary; condition; decomposition; differential; domain; equations; exact; function; illustration; infinite; integral; journal; mathematics; method; nig; numerical; order; ordinary; phys; problems; residual; sci; semi; soc; solution; transform; trial; value; weighted; wrm cache: jnsps-867.pdf plain text: jnsps-867.txt item: #216 of 247 id: jnsps-87 author: Ogunniran, M. O.; Tayo, O. A. ; Haruna, Y.; Adebisi, A. F. title: Linear Stability Analysis of Runge-Kutta Methods for Singular Lane-Emden Equations date: 2020-08-01 words: 4101 flesch: 79 summary: Existing methods of Runge-Kutta are of orders 2, 3, and orders greater than 4. Methods of orders greater than 4 are regarded as higher-order methods of Runge- Kutta. Discussion of Results and Conclusion It is worthy to note that numerical methods were programmed via MATLAB 9.2 version on a personal computer with the fol- lowing specifications: • keywords: 10−1; differential; emden; equations; example; figure; h(µ1; initial; journal; kutta; lane; mathematics; method; numerical; ogunniran; order; problems; roul; runge; singular; solution; stability; stage; table; type; value cache: jnsps-87.pdf plain text: jnsps-87.txt item: #217 of 247 id: jnsps-871 author: Aliyu, Yakubu; Usman, Umar title: On Bivariate Nadarajah-Haghighi Distribution derived from Farlie-Gumbel-Morgenstern copula in the Presence of Covariates date: 2023-05-01 words: 8258 flesch: 62 summary: Tobacco data n sex age T1 δ1 T2 δ2 control31 M 83 0.063014 1 0.013699 0 control34 M 36 6.69863 0 6.079452 0 control69 M 49 5.021918 0 F 50 5.6 0 4.980822 0 control14 M 58 keywords: aliyu; applications; bayesian; bivariate; bivariate distributions; bivariate nadarajah; censored; copula; copula function; covariates; data; density; dependence; dgamma(1,1; dic; different; discrete; distribution; equation; error; estimates; estimation; exponential; exponential distribution; fgm; fgmbnh; fingers; fits; function; generalized; haghighi; haghighi distribution; information; joint; journal; lifetimes; methods; model; nadarajah; nig; parameters; phys; posterior; presence; prior; probability; product; properties; random; sci; section; soc; statistical; survival; t1i; t2i; table; tobacco; usman; weibull; weibull distribution; θ2t2 cache: jnsps-871.pdf plain text: jnsps-871.txt item: #218 of 247 id: jnsps-874 author: Babarinsa, Olayiwola; Ihinkalu, Olalekan; Cyril-Okeme, Veronica; Kamarulhaili, Hailiza ; Mandangan, Arif; Sofi, Azfi Zaidi Mohammad ; Disu, Akeem B. title: Application of hourglass matrix in Goldreich-Goldwasser-Halevi encryption scheme date: 2022-10-08 words: 4168 flesch: 67 summary: Sci. 4 (2022) 874 Journal of the Nigerian Society of Physical Sciences Application of hourglass matrix in Goldreich-Goldwasser-Halevi encryption scheme Olayiwola Babarinsaa,∗, Olalekan Ihinkalub, Veronica Cyril-Okemea, Hailiza Kamarulhailic, Arif Mandangand, Azfi Zaidi Mohammad Sofie, Akeem B. Disuf aDepartment of Mathematics, Federal University Lokoja, Kogi State, Nigeria bDepartment of Computer Sciences, Federal University Lokoja, Kogi State, Nigeria cSchool of Mathematical Sciences, Universiti Sains Malaysia, 11800 Pulau Pinang, Malaysia dFaculty of Science and Natural Resources, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Malaysia eFaculty of Bioengineering & Technology, Universiti Malaysia Kelantan, 16100 Kota Bharu, Malaysia fDepartment of Mathematics, National Open University of Nigeria, Abuja, Nigeria Abstract Goldreich-Goldwasser-Halevi (GGH) encryption scheme is lattice-based cryptography with its security based on the shortest vector problem (SVP) and closest vector problem (CVP) with immunity to almost all attacks, including Shor’s quantum algorithm and Nguyen’s attack of higher lattice dimension. Section 2 gives the detail of an hourglass matrix and its factorization algorithm, while Section 3 entails the application of hourglass matrix and its factorization technique in GGH encryption scheme. keywords: algorithm; alice; attack; babarinsa; basis; bob; cryptography; cvp; dimension; doi; encryption; entries; factorization; form; ggh; hadamard; hourglass; hourglass matrix; instance; key; k−1; lattice; matrix; message; nonsingular; private; problem; public; quantum; ratio; scheme; sciences; security; unimodular; vectors; ;  cache: jnsps-874.pdf plain text: jnsps-874.txt item: #219 of 247 id: jnsps-878 author: Wahab, O. T.; Usamot, I. F.; Alata, S. M.; Tijani, K. R. title: On Nonexpansive and Expansive Semigroup of Order-Preserving Total Mappings in Waist Metric Spaces date: 2022-12-22 words: 5265 flesch: 82 summary: A nonempty subset X of a convex waist metric space (M,ω, u)α is said to be convex if u(x, y,λ) ∈ X for all x, y ∈ X and λ The map αs : X → X is called a nonexpansive semigroup of order-preserving total map ONTn if for x, y ∈ X and s ∈ S , ω(xαs, yαs ) ≤ ω(x, y). keywords: closed; convex; definition; dom(α; finite; fixed; fo(αs; lemma; lim; mappings; math; metric; nonempty; nonexpansive; ontn; order; otn; partial; point; proof; results; sci; semigroup; semitopological; set; soc; space; subset; theorem; total; transformations; waist; xδk; ω(x; ω(xδk; ω)α cache: jnsps-878.pdf plain text: jnsps-878.txt item: #220 of 247 id: jnsps-883 author: Igbawua, Tertsea; Gbanger, Martha Hembafan; Ujoh, Fanan title: Suitability Analysis for Yam Production in Nigeria using Satellite and Observation Data date: 2022-11-06 words: 7161 flesch: 55 summary: Raster map showing suitability criteria for yam cultivation Nigeria, constraint (a) mean temperature, (b) mean precipitation, (c) relative humidity (d) Cations Exchange Capacity, (e) Soil Organic Carbon, (f) Land cover, (g) slope agricultural system. PCM of all the variables relevant to yam crop suitability in Nigeria TEMP PRE LCD CEC SOC pH R.HUM SLP WEIGHT TEMP 1.000 2.000 3.000 5.000 4.000 6.000 5.000 7.000 30.9 PRE 0.500 1.000 3.000 4.000 4.000 5.000 5.000 7.000 24.7 LCD 0.333 0.333 1.000 3.000 3.000 5.000 4.000 6.000 15.9 CEC 0.200 0.250 0.333 1.000 3.000 4.000 3.000 3.000 10.0 SOC 0.250 0.250 0.333 0.333 1.000 4.000 3.000 5.000 8.1 pH 0.167 0.200 0.200 0.250 0.250 1.000 3.000 3.000 4.5 R.HUM 0.200 0.200 0.250 0.333 0.333 0.333 1.000 1.000 3.2 SLP 0.143 0.143 0.167 0.333 0.200 0.333 1.000 1.000 2.7 Figure 3. keywords: agricultural; ahp; analysis; area; available; benue; cassava; cec; central; change; classes; climate; comparison; contrast; country; cover; criteria; crop; cultivation; data; decision; dioscorea; environmental; exchange; factors; figure; food; gap; gis; growth; high; humidity; hunger; igbawua; impact; importance; index; infiltration; journal; june; land; low; map; matrix; mean; methods; months; multi; ndvi; nigeria; order; organic; pairwise; parameters; phys; precipitation; process; production; regions; relative; research; results; rice; saaty; sci; science; season; slope; soc; soil; spatial; state; study; sub; suitability; suitability classes; suitable; system; technique; temperature; tons; tropical; use; values; variables; vegetation; water; weights; work; world; yam; yam production; yams; yield cache: jnsps-883.pdf plain text: jnsps-883.txt item: #221 of 247 id: jnsps-884 author: Inyang, E. P. ; Obisung, E. O.; Iwuji, P. C.; Ntibi, J. E.; Amajama, J.; William, E. S. title: Masses and thermal properties of a Charmonium and Bottomonium Mesons date: 2022-08-19 words: 5706 flesch: 63 summary: (6) The second derivative of equation (6) is given as d2U(q) dq2 = 2w3 dU(w) dw + w4 d2U(w) dw2 (7) Replacing equations (6) and (7) in equation (8) gives; d2U(w) dw2 + 2w w2 dU dw + 1 w4 [ 2µEnl ~2 + 2µG0w ~2 − 2µG1 ~2w (8) − 2µG2 ~2w2 − 2µG3w2 ~2 − 2µG4 ~2 − l (l + 1) w2 ] U(w) = 0 The approximation scheme (AS) is introduced by assuming that there is a characteristic radius r0 of the meson. [62] gives τ(w) = 2w − X0w √ ε + 2ε √ ε (19) Equation (19) gives τ′(w) = 2 − X0 √ ε (20) Using equations (19) and equation (21) of Ref. keywords: abu; bb̄; bottomonium; cc̄; charmonium; cornell; different; e.p; e.s; energy; equation; figure; function; generalized; gev; heavy; hms; hulthén; inyang; journal; mass; masses; mesons; method; model; molecules; nig; nikiforov; non; omugbe; physical; physics; potential; properties; quantum; quark; quarkonium; relativistic; sci; shady; soc; solutions; spectra; spectrum; state; study; system; tps; uvarov; values; wave; william; x0√; yukawa; ϑr0 cache: jnsps-884.pdf plain text: jnsps-884.txt item: #222 of 247 id: jnsps-887 author: Lala, M. A.; Kawu, S.; Adesina, O. A.; Sonibare, J. A. title: Assessment of Heavy Metal Pollution Status in Surface Soil of a Nigerian University date: 2022-08-15 words: 8070 flesch: 58 summary: The multivariate statistical analyses indicated that vehicles, power generating sets, petrol station, machine workshops, production plants and emissions from outdoor roasted food spots were the major sources of heavy metals contamination on the universitys’ soil. In some years back, series of studies have been carried out on the assessment urban soils for heavy metals contamination [9-11]. keywords: ab10; ab2; ab4; ab9; abuad; activities; analysis; areas; assessment; average; background; central; chemical; concentration; contamination; contamination level; control; copper; corresponding; different; distribution; ecological; emissions; engineering; enrichment; environment; factor; figure; generating; health; heavy; heavy metals; high; higher; igeo; index; ipi; journal; lala; lead; level; limit; low; machine; major; mean; mechanic; metals; natural; nigeria; pca; phys; plants; pollution; power; present; production; research; risk; samples; sampling; sci; section; selected; similar; site; soc; soils; sources; standard; station; study; surface; table; trace; university; urban; value; workshop; zinc cache: jnsps-887.pdf plain text: jnsps-887.txt item: #223 of 247 id: jnsps-89 author: Olaoluwa, Daud; Abdulhadi E. Abdulmalik; Taoreed A. Muraina; Sadisu Girigisu; Ayo F. Balogun title: Dissolution of a Nigerian sourced Muscovite ore for use as an ingredient in paint production date: 2020-08-01 words: 3413 flesch: 49 summary: The optimal acid concentration obtained was employed to study the extent of reaction temper- ature on the dissolution rate of muscovite ore dissolution over the temperature ranges of 28 − 75◦C and its result is as shown in the Figure 4. From the plot, it can be observed that the dissolution of muscovite is positively influenced as the leaching time rises at 130 Olaoluwa et al. / J. Nig. Extent of HCl concentrations on muscovite ore dissolution per different leaching time (min.). keywords: acid; calculated; chemical; concentration; conditions; different; diffusion; dissolution; elements; experimental; figure; hcl; high; hydrochloric; leaching; materials; mechanism; minutes; mol; muscovite; muscovite ore; nig; olaoluwa; optimal; order; ore; paint; particle; phys; process; production; products; purification; quartz; rate; raw; reaction; research; result; sample; sci; sem; size; soc; studies; study; surface; temperature; time; use; water; xrd cache: jnsps-89.pdf plain text: jnsps-89.txt item: #224 of 247 id: jnsps-891 author: Ajah, D. N.; Agboeze, E.; Ihedioha, J. N.; Chukwudi-Madu, E.; Chime, C. C. title: Levels of Zinc (Zn), Copper (Cu), Iron (Fe), and Cadmium (Cd) in Soil, Rice Stalk, and Oryza Sativa Grain in Ishiagu Rice Field, Ebonyi State, Nigeria; Human Health Risk date: 2022-09-25 words: 7297 flesch: 67 summary: Mean ± SD of metal concentrations (mg/kg) Sample Copper Zinc Iron Cadmium Soil control 2.22 ± 0.75 5.26 ± 2.2 814.40 ± 7.52 - Soil b/4 planting 3.40 ± 0.91 7.28 ± 3.90 803.04 ± 26.76 1.14 Ash 156.81 ± 156.81 42.07 ± 42.07 848.28 ±848.28 - Soil after harvest 4.64 ± 0.69 11.33 ± 2.51 735.47 ± 73.20 - Rice stalk 2.46 ± 2.95 45.14 ± 13.73 150.02 ± 85.20 0.53±0.85 Rice grain 4.14 ± 3.92 24.90 ± 6.06 107.78 ± 138.15 - Table 4. Metal concentrations (mg/kg) in rice, PMTDI (mg/kg /person/day) with EDI (mg/kg bw/day) and THQ data for a 60 kgadult METAL MEAN ± SD PMTDI EDI THQ Copper 4.14±3.92 0.05-0.5 0.01 0.00017 Zinc 24.90±6.06 0.3-1 0.04 0.00014 Iron 107.78±138.15 0.8 0.18 0.00026 Cadmium - - - Provisional maximum tolerable daily intake (PMTDI) by JECFA According to the international rice research institute (2001), the average Nigerian consumes 24.8kg of rice per year, equivalent to 0.1kg per person/day. keywords: agricultural; ajah; analysis; ash; assessment; cadmium; china; collected; concentration; consumption; contaminated; contamination; control; copper; correlation; daily; different; environmental; field; food; grain; harvest; hazard; health; heavy; highest; human; intake; iron; journal; limits; lowest; maximum; mean; mean concentration; metals; nig; nigeria; permissible; phys; planting; potential; quality; research; results; rice; rice grain; risk; samples; sci; soc; soil; stalk; standards; study; table; test; thq; value; zinc cache: jnsps-891.pdf plain text: jnsps-891.txt item: #225 of 247 id: jnsps-896 author: Kolo, Matthew Tikpangi; Olarinoye, Oyeleke ; Salihu, Simon Olonkwoh ; Ugwuanyi, Hyginus Anayo ; Onuche, Paul ; Falade, Opeyemi ; Chibueze, Nwachukwu title: Annual Effective Dose and Excess Lifetime Cancer Risk due to Ingestion and Inhalation of Radon in Groundwater of Bosso Community Minna, North-Central Nigeria date: 2023-04-19 words: 5877 flesch: 59 summary: [25], observed differences in radon concentrations in LW and BH may be due to the depth of water sources, hydrogeo- logical state of the source location and the prevailing climatic conditions. [5] H. Nuhu, S. Hashim, M. S. M. Sanusi & M. A. Saleh, “Radon activity concentration measurements in water sources from Perak state Malaysia”, Journal of Radiation Research and Applied Sciences 13 (2020) 665. keywords: 222rn; air; annual; area; average; body; boreholes; bosso; cancer; central; children; community; concentration; consumption; detector; dose; drinking; effective; effects; ekiti; elcr; exposure; groundwater; health; human; icrp; indoor; infants; ingestion; inhalation; journal; kolo; lifetime; l−1; mean; minna; msv; nigeria; north; open; phys; population; radiation; radon; radon concentration; results; risk; rocks; safety; samples; sci; sciences; soc; sources; state; stomach; study; table; values; water; waterborne; waterborne radon; wells; world; y−1; µsv cache: jnsps-896.pdf plain text: jnsps-896.txt item: #226 of 247 id: jnsps-9 author: Ibrahim, Yusuf title: Strong Convergence Theorems for Split Common Fixed Point Problem of Bregman Generalized Asymptotically Nonexpansive Mappings in Banach Spaces date: 2019-05-16 words: 13406 flesch: 90 summary: [kn + 1] 4p (zn, v) + µn; 4p(zn, v) ≤4p(xn, v)}, xn+1 = Π p Cn+1 (x1), n ≥ 1 (71) where λn =  1 ‖J pE2 (I−ΠpCn T n )xn‖ , xn , 0 〈J pE2 (I−ΠpCn T n )xn,xn−Π p Cn T n xn〉p−1 ‖J pE2 (I−ΠpCn T n )xn‖p , xn = 0 and γ ∈ (0, 1) and τn = 1 ‖xn‖p−1 are chosen such that ρE∗1 (τn) = γ 2qGq × 〈J pE2 (I − Π p Cn T n)xn, xn − Π p Cn T n xn〉 ‖xn‖p‖J p E2 (I − ΠpCn T n)xn‖ , and {αn} ⊂ (0, 1) satisfies lim inf n→∞ αn(1 − αn) > 0. Axn − Π p ACn T n Axn〉 −λn〈(J p E2 (I − ΠpACn T n)Axn, Axn − Π p ACn T n Axn〉 + λn〈(J p E2 (I − ΠpACn T n)Axn, Axn〉 = λn〈(J p E2 (I − ΠpACn T n)Axn, (Av − Axn) − (Π p ACn T n Axn − Axn)〉 −λn〈(J p E2 (I − ΠpACn T n)Axn, Axn − Π p ACn T n Axn〉 + λn〈(J p E2 (I − ΠpACn T n)Axn, Axn〉 = −λn〈(J p E2 (ΠpACn T n − I)Axn, (Av − Axn) − (Π p ACn T n Axn − Axn)〉 −λn〈(J p E2 (I − ΠpACn T n)Axn, Axn − Π p ACn T n Axn〉 + λn〈(J p E2 (I − ΠpACn T n)Axn, Axn〉. keywords: 4p(zn; ack t; axk −; axn −; banach; bounded; bregman; closed; cn+1; common; continuous; convex; definition; following; generalized; ibrahim; j p; j pe2; lemma; lim; mapping; n axn; nig; nonexpansive; n→∞; operator; p acn; p e1; p e2; p xn+1; p −; pe1; pe2; phys; point; problem; projection; p−1; sci; sequence; smooth; soc; spaces; split; t k; t k)axk; t n; t n)axn; t)v2; tv1; uniformly; xn+1; yusuf; λk〈(j p; π p; πpacn t; ρe∗1; ‖a‖p; − j; − π; − πpacn cache: jnsps-9.pdf plain text: jnsps-9.txt item: #227 of 247 id: jnsps-909 author: Bolarinwa, Sherifdeen O. ; Danladi, Eli; Ichoja, Andrew; Onimisia, Muhammad Y.; Achem, Christopher U. title: Synergistic Study of Reduced Graphene Oxide as Interfacial Buffer Layer in HTL-free Perovskite Solar Cells with Carbon Electrode date: 2022-08-17 words: 7770 flesch: 55 summary: In this paper, we reported the performance of perovskite solar cells by integrating Reduced Graphene Oxide (rGO) as a buffer layer. DOI:10.46481/jnsps.2022.909 Keywords: Perovskite solar cells, Reduced Graphene Oxide, Buffer layer, HTM Article History : Received: 01 July 2022 Received in revised form: 02 August 2022 Accepted for publication: 04 August 2022 Published: 17 August 2022 keywords: absorbance; absorbing; absorption; absorptivity; addition; analysis; architecture; band; bolarinwa; box; buffer; carbon; cbg; cells; ch3nh3pbi3; circuit; configuration; conversion; current; delocalized; density; device; difference; duncan; effect; efficiency; electrons; energy; evident; figure; film; free; fto; good; graphene; graphite; harvesting; high; hole; intensity; journal; jsc; layer; light; magnification; mapbi3; material; maximum; mesoporous; minimum; minutes; nig; observed; oxide; pce; peaks; performance; perovskite; perovskite solar; photovoltaic; phys; plot; preparation; presence; pscs; raman; range; rate; region; reported; research; result; rgo; role; sample; sci; science; sem; significant; soc; solar; solar cells; stability; statistical; table; test; tio2; transport; value; visible; voc; voltage; wang cache: jnsps-909.pdf plain text: jnsps-909.txt item: #228 of 247 id: jnsps-911 author: Khalil, Samy A. title: Performance Evaluation and Statistical Analysis of Solar Energy Modeling: A Review and Case Study date: 2022-10-09 words: 21516 flesch: 83 summary: [92] F. J. Newland, “A study of solar radiation models for the coastal region of South China”, Solar Energy 43 (1989) 227. http://dx.doi.org/10.1016/0038-092X(89) 90022-4. [93] K. K. Gopinathan & A. Soler “A sunshine dependent global insolation model for latitudes between 60◦N and 70◦N’, Renew Energy 2 (1992) 401. http://dx.doi. Sci. 4 (2022) 911 Journal of the Nigerian Society of Physical Sciences Performance Evaluation and Statistical Analysis of Solar Energy Modeling: A Review and Case Study Samy A. Khalil∗ Solar and Space Department, National Research Institute of Astronomy and Geophysics (NRIAG), 11421, Helwan, Cairo, Egypt Abstract The main target of this research is a quantitative review of literature on global solar radiation (GSR) models available for different stations around the world. keywords: -1.356; -11.325; -13.269; -14.214; -2.314; -2.457; accuracy; analysis; angstrom; appl; aras et; areas; assi et; atmospheric; augustine; author; average; calculation; case; clearness; coefficient; comparison; continue; convers; correlation; coulibaly; daily; daily global; data; daylight; different; diffuse; duration; egypt; empirical; energy; error; estimation; et al; evaluation; figure; gana; garg; global; global radiation; global solar; gpi; gsr; hejase et; horizontal; hours; hussain et; ibrahim; index; india; indicator; information; int; j. nig; jain; jin et; katiyar et; khalil; khogali; kolebaje; locations; mabe; mae; mare; mbe; mean; measured; meteorological; model rank; modeling; models; monthly; monthly average; months; mpe; mustapha; nig; nigeria; nnabuchi; nwokoye; ogolo; okundamiya et; olayinka; onyango et; ouedoraogo; page; parameters; performance; period; photovoltaic; phys; point; present; radiation; radiation models; rank; references; relapse; relative; renew; rensheng et; research; results; review; rietveld; rmse; s0)2; s0)3; sci; score; sebaii et; second; sekhar et; sites; soc; solar; solar energy; solar radiation; specific; srivastava et; statistical; study; sunshine; surface; sustainable; table; technol; temperature; test; togrul et; u95; values; world; worldwide cache: jnsps-911.pdf plain text: jnsps-911.txt item: #229 of 247 id: jnsps-915 author: Ogunyemi, B. T.; Ojo, F. K. title: Corrosion Inhibition Potential of Thiosemicarbazide Derivatives on ALuminium: Insight from Molecular Modelling and QSARs Approaches date: 2023-01-14 words: 7616 flesch: 50 summary: Their performance as corrosion inhibitors were evaluated using their calculated quantum chemical parameters such as molecular weight, softness, electronegativity, dipole moments, hardness, bandgap energy (∆E), highest occupied molecular orbital energy (EHOMO), and the lowest unoccupied molecular orbital energy (ELU MO). Over the years, painting, cathodic and anodic protec- tion, galvanizing, and the use of corrosion inhibitors (CIs), have been explored to alleviate the corrosion problem keywords: absolute; acid; adsorption; atoms; charge; chemical; chemistry; compounds; corrosion; corrosion inhibition; density; derivatives; descriptors; dft; dipole; distribution; effective; efficiencies; efficiency; ehomo; electronegativity; electrons; electrophilicity; energy; equation; experimental; figure; functional; hardness; high; highest; increases; inhibition; inhibitors; journal; low; metal; mild; model; molecular; molecules; moment; nig; ogunyemi; ojo; orbital; organic; parameters; phys; potential; qsar; quantum; reactivity; relationship; result; schiff; sci; science; soc; softness; steel; structure; studied; study; surface; table; theoretical; thiosemicarbazide; transfer; tsc1; tsc2; tsc3; tsc4; tsc5; tsc6; values cache: jnsps-915.pdf plain text: jnsps-915.txt item: #230 of 247 id: jnsps-917 author: Onate, C. A. ; Oluwayemi, M. O.; Okon, I. B. title: Dirac Equation for Energy-Dependent Potential With Energy-dependent Tensor Interaction date: 2023-01-14 words: 6443 flesch: 82 summary: M − Enκ] , (25) βs = M + Enκ − Cs. Fnκ (r) = [ MC2 + Enκ − ∆(r) ] Gnκ(r) (10) ( d dr − κ r ) Gnκ (r) = [ MC2 − keywords: 0f5/2; 1d3/2; 2d5/2; 2p3/2; b2 enκ; constant; coulomb; degeneracies; degenerate; dependent; different; dirac; doublets; edp; energy; enκ; enκ)βp; equation; fnκ(r; following; h1(1; h1,2; h22; interaction; kratzer; limit; mc2; method; mie; m−1; nig; non; obtain; onate; phys; potential; pseudospin; quantum; sci; soc; solution; spin; symmetry; table; tensor; −λ2(1 cache: jnsps-917.pdf plain text: jnsps-917.txt item: #231 of 247 id: jnsps-92 author: Fadugba, S. E.; Ogunyebi, S. N.; Falodun, B. O. title: An Examination of a Second Order Numerical Method for Solving Initial Value Problems date: 2020-08-01 words: 2783 flesch: 70 summary: In this paper, the performance of SOCNM in terms of accuracy and stability, that provides numerical solutions to IVPs in ODEs is examined. One way is to use numerical methods for approximating the solution of the differential equations using prescribed initial or boundary con- ditions. keywords: accuracy; comparative; differential; equations; fadugba; figure; fos; imem; initial; ivps; method; numerical; odes; order; problem; results; socnm; solution; step; y(xn cache: jnsps-92.pdf plain text: jnsps-92.txt item: #232 of 247 id: jnsps-924 author: Salawu, S. O.; Kareem, R. A.; Ajilore, J. O. title: Eyring-Powell MHD nanoliquid and entropy generation in a porous device with thermal radiation and convective cooling date: 2022-10-08 words: 5816 flesch: 60 summary: [29] E.O. Fatunmbi, A.T. Adeosun & S.O. Salawu, “Irreversibility analysis for Eyring–Powell nanoliquid flow past magnetized Riga device with nonlin- ear thermal radiation”, Fluid 6 (2021) 416. [17] T. M. Agbaje, S. Mondal, S.S Motsa & P. Sibanda, “A numerical study of unsteady non-Newtonian Powell-Eyring nanofluid flow over a shrinking sheet with heat generation and thermal radiation”, Alexandria Engin. keywords: analysis; boundary; chemical; cooling; device; dissipation; effects; entropy; equations; et al; eyring; field; figure; flow; fluid; friction; generation; heat; hydromagnetic; impact; irreversibility; magnetic; mhd; nanofluid; nanoliquid; newtonian; nig; non; number; numerical; parameters; phys; plate; porosity; porous; powell; process; radiation; rate; reaction; reactive; results; salawu; sci; soc; species; stretching; study; system; temperature; terms; thermal; thermodynamic; transfer; values; variable; velocity; vertical; wall cache: jnsps-924.pdf plain text: jnsps-924.txt item: #233 of 247 id: jnsps-926 author: Etim, I. P.; Mfon, R. E. title: A comparison of the performance and energy resolution of CdTe and Si detectors in the X-ray Fluorescence studies of metal samples and Alloys date: 2022-11-27 words: 5112 flesch: 64 summary: DOI:10.46481/jnsps.2022.926 Keywords: X-ray fluorescence, Cadmium Telluride detector, Silicon detector, Energy resolution, energy efficiency Article History: Received: 09 July 2022 Received in revised form: 10 October 2022 Accepted for publication: 11 November 2022 Published: 27 November 2022 c© 2022 An electron from the outer orbits moves in to fill that hole resulting in the emission of a photon with energy equal to the energy difference of the initial and final states producing X-ray fluorescence (XRF) keywords: amplifier; angle; beam; brass; calibration; cdte; cdte detector; characteristic; copper; detector; different; efficiency; electrons; element; emission; energies; energy; energy resolution; error; figure; fluorescent; higher; intensity; kev; lower; model; new; number; peak; photons; plot; ratio; ray; rays; resolution; results; sample; secondary; si detector; small; source; spectra; steel; table; visible; xrf cache: jnsps-926.pdf plain text: jnsps-926.txt item: #234 of 247 id: jnsps-93 author: Daniel, Terver; Kisyov, Stanimir; Regan, Patrick ; Marginean, Nicu; Podolyak, Zsolt; R. Marginean; K. Nomura; M. Rudigier; R. Mihai; V. Werner; R. J. Carroll; Gurgi, Laila; A. Oprea; Berry, Tom; A. Serban; C. R. Nita; C. Sotty; R. Suvaila; A. Turturica; C. Costache; L. Stan; A. Olacel; M. Boromiza; S. Toma; S. J. Gemanam; F. Gbaorun; I. Ochala; E. C. Hemba title: Prompt Response Function (PRF) of Lifetime Measurement in the 2+ State of 192Os Nuclei Energy Levels from Triple-Gamma Coincidence Techniques date: 2020-11-15 words: 3255 flesch: 59 summary: [28] E. de Lima et al., “Tests of the Methods of Analysis of Picosecond Life- times and Measurement of the Half-life of the 569.6 keV Level in 207Pb”, Nuclear Instruments and Methods 151 (1978) 221. 260 Daniel et al. / J. Nig. [4] T. Daniel et al., “Review of the nuclear systematics for nuclei 140214”, Journal of the Nigerian Association Of Mathematical Physics 49 (2019) 251. keywords: 192os; associated; coincidence; convolution; daniel; decay; difference; energy; excited; figure; fwhm; gamma; half; instruments; kev; labr3(ce; lifetime; lines; measured; measurements; methods; neutron; nuclear; nuclei; pairs; physical; physics; picosecond; prf; prompt; ray; response; spectra; state; technique; time; transitions; university; value; yrast cache: jnsps-93.pdf plain text: jnsps-93.txt item: #235 of 247 id: jnsps-931 author: Onuegbu, S. C.; Oluyamo, S. S.; Olusola, O. I. title: Influence of Bath pH values on the Structural and Optical Properties of Electrodeposited MgO Thin Films for Optoelectronic applications date: 2023-03-18 words: 5484 flesch: 59 summary: DOI:10.46481/jnsps.2023.931 Keywords: MgO thin films, Bath pH, Electrodeposition. MgO thin films have been utilized as buffer layer for super- conducting and ferroelectric thin film fabrications; however, its wide band gap, low optical loss and relatively low refractive index have reported improved the optical modes in many ferroelectric materials [12]. keywords: absorbance; absorption; applications; band; bath; bath ph; calculated; characterization; chemical; conductivity; deposited; deposition; different; doi; effect; electrochemical; electrodeposition; electron; energy; fabrication; figure; films; fto; gap; growth; high; increase; index; journal; layer; like; magnesium; materials; mgo; mgo films; mgo thin; morphological; nanoparticles; nanostructures; nig; onuegbu; optical; optical properties; oxide; ph values; phys; physical; physics; properties; ray; reflectance; refractive; region; results; sci; science; soc; solar; spectra; structural; substrate; surface; synthesis; technique; technology; temperature; thin; thin films; transmittance; values; vis; wavelength; zno cache: jnsps-931.pdf plain text: jnsps-931.txt item: #236 of 247 id: jnsps-94 author: Adedotun, A. F.; Latunde, T.; Odusanya, O. A. title: Modelling and Forecasting Climate Time Series with State-Space Model date: 2020-08-01 words: 5219 flesch: 66 summary: For the case of state-space models with correlated errors, further work can be done here by taking into consideration cor- relation between the error terms in state equation when consid- ering structural models of the form trend, seasonal, cycle and an autoregressive process. Models are built by taking into account average monthly maximum and minimum temperature, relative humidity, wind speed and pre- cipitation amount. keywords: adedotun; analysis; average; climatic; component; criterion; cyclic; data; differencing; equation; error; estimation; figure; filter; forecasting; frequency; function; important; initial; journal; kalman; likelihood; maximum; mean; method; model; monthly; nig; pakistan; parameters; patterns; period; permanent; phys; precipitation; process; rainfall; residuals; results; sci; seasonal; series; soc; space; space model; spectral; state; structural; study; system; table; temperature; time; trend; underlying; values; variables; variance; vector cache: jnsps-94.pdf plain text: jnsps-94.txt item: #237 of 247 id: jnsps-945 author: Saini, Monika; Kumar, Ashish; Maan, Vijay Singh; Sinwar, Deepak title: Efficient and Intelligent Decision Support System for Smart Irrigation date: 2022-11-11 words: 4170 flesch: 58 summary: no: +917725922864 Email address: ashish.kumar@jaipur.manipal.edu (Ashish Kumar) smart irrigation system based on soli and environmental mea- surements irrigation decision can be made. [6] proposed model for smart irrigation systems in var- ious aspects. keywords: agriculture; algorithm; availability; decision; efficient; failure; figure; gwo; intelligent; irrigation; iterations; maximum; model; nig; optimization; parameters; phys; population; rates; repair; saini; sci; sensor; size; smart; soc; standby; system; table; time; unit; water cache: jnsps-945.pdf plain text: jnsps-945.txt item: #238 of 247 id: jnsps-949 author: O. Oluwasina, Olugbenga ; D. Aderibigbe, Abiodun ; Petinrin, Damilola C.; Adebisi, Adeyemi S.; Oluwasina, Olayinka O.; Wahab, Oluwasegun J. title: Potential of Anacardic Acid for Nanosized Cellulose Preparation Under Different Treatment Conditions date: 2022-11-05 words: 3305 flesch: 47 summary: Akure, Ondo State, Nigeria bDepartment of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom cSchool of Chemistry and Physics, University of KwaZulu-Natal, Westville Campus, Private Bag X54001, 4000, 7 South Africa Abstract Herein, anacardic acid was applied for the preparation of nanosized cellulose using three different treatment conditions including ultrasonication, microwave irradiation, and reflux. Overall, the study shows that anacardic acid holds potential for the preparation of nanosized cellulose. keywords: acid; anacardic; anacardic acid; cashew; cellulose; characterization; chemical; chemistry; conditions; development; different; fibre; figure; ftir; hydrolysis; industrial; inflorescence; irradiation; journal; liquid; material; methods; microwave; mnc; nanosized; nanosized cellulose; nig; nut; olugbenga; organic; phys; physical; pis; pis cellulose; plantain; preparation; prepared; products; reflux; rnc; samples; sci; sem; soc; stalk; tem; treatment; ultrasonication; unc; water; xrd cache: jnsps-949.pdf plain text: jnsps-949.txt item: #239 of 247 id: jnsps-951 author: Ajaelu, C. J.; Oyedele, O.; Ikotun, A. A.; Faboro, E. O. title: Safranin O dye removal using Senna fistula activated biomass: Kinetic, equilibrium and thermodynamic studies date: 2022-12-22 words: 5750 flesch: 57 summary: This study with our previous research on Safranin O dye adsorption em- ploying the African Border tree After SO dye adsorption, this band has shifted to a higher fre- quency of 1744 cm−1 and also appeared as a strong band. keywords: acid; adsorbate; adsorbent; adsorption; african; ajaelu; aqueous; band; biomass; capacity; carbon; chemical; cm−1; concentration; constant; contact; copper; data; dye; dyes; effect; energy; engineering; equilibrium; figure; fistula; freundlich; high; increase; initial; interaction; isotherm; journal; kinetic; langmuir; linear; log; model; modified; mol; molecules; msf; nig; order; parameters; phys; physical; pods; process; pseudo; rate; red; removal; safranin; sci; science; second; senna; senna fistula; sites; soc; solution; studies; study; surface; table; temkin; temperature; thermodynamic; time; uptake; value; waste; water cache: jnsps-951.pdf plain text: jnsps-951.txt item: #240 of 247 id: jnsps-954 author: Lala, M. A.; Adesina, O. A.; Odejobi, O. J.; Sonibare, J. A. title: Theoretical Air Requirement and Combustion Flue Gases Analysis for Indigenous Biomass Combustion date: 2022-09-19 words: 7826 flesch: 59 summary: This is because stoichiometric combustion air required and wet combustion air flow rate both depend on the stoichiometric volume of oxy- gen. DOI:10.46481/jnsps.2022.954 Keywords: Rice-husk, Biomass combustion, Theoretical combustion air, Ultimate analysis, Proximate analysis Article History : Received: 25 July 2022 Received in revised form: 16 August 2022 Accepted for publication: 17 August 2022 Published: 19 September 2022 c© 2022 keywords: abundant; air; air volume; analysis; ash; biomass; calculated; carbon; chemical; co2; combustible; combustion; combustion air; composition; content; dioxide; dry; elemental; emission; energy; equation; excess; fixed; flow; flue; flue gas; fuel; gas; gas volume; gases; h2o; heating; high; humidity; husk; hydrogen; kg fuel; lala; level; moisture; n m3; nerica; nigeria; nitrogen; oxygen; percentage; phys; present; process; production; proximate; quantity; rate; required; requirement; result; rice; sample; sci; soc; solid; stoichiometric; stoichiometric combustion; stoichiometric volume; sulphur; table; temperature; theoretical; total; ultimate; use; value; vapour; variety; volatile; volume; waste; water; wet; work cache: jnsps-954.pdf plain text: jnsps-954.txt item: #241 of 247 id: jnsps-957 author: Orverem, J. M.; Haruna, Y.; Abdulhamid, B. M.; Adamu, M. Y. title: The Use of Differential Forms to Linearize a Class of Geodesic Equations date: 2022-10-08 words: 4528 flesch: 73 summary: Differential forms are used to linearize a class of geodesic differential equations in this research. Sci. 4 (2022) 957 Journal of the Nigerian Society of Physical Sciences The Use of Differential Forms to Linearize a Class of Geodesic Equations J. M. Orverema,b,∗, Y. Harunaa, B. M. Abdulhamida, M. Y. Adamua aDepartment of Mathematical Sciences, Abubakar Tafawa Balewa University Bauchi, Bauchi State, Nigeria bDepartment of Mathematical Sciences, Federal University Dutsin-Ma, Katsina State, Nigeria Abstract Lie was the first to consider linearization of differential equations many years ago. keywords: class; coefficients; constant; cosy; coty; differential; equations; forms; geodesic; geometry; integrating; journal; linearization; methods; msec2; order; ordinary; orverem; problem; sciences; second; secx; siny; solution; space; sphere; straight; surface; symmetry; systems; tanx; ;  cache: jnsps-957.pdf plain text: jnsps-957.txt item: #242 of 247 id: jnsps-961 author: Saliu, Afis; Oladejo, Semiu Oladipupo title: On Lemniscate of Bernoulli of q-Janowski type date: 2022-10-08 words: 5406 flesch: 94 summary: [ 2 ( [ j]q[n − j]q − 1 ) (12) + ∣∣∣∣(B + 1)[ j]q[n − j]q − (A + 1) ∣∣∣∣]∣∣∣a jan− j∣∣∣ } < ∣∣∣B [ 2q + |B − A| + |(1 + B)q keywords: analytic; appl; class; convex; corollary; following; functions; g(z; j(z; j=1; j]q; jan−; khan; l∗q(a; math; n=1; n=2; nig; phys; proof; results; saliu; sci; sequence; soc; starlike; theorem; univalent; zdq; |(1 +; |an| cache: jnsps-961.pdf plain text: jnsps-961.txt item: #243 of 247 id: jnsps-967 author: Enoch, Opeyemi O.; Adeniji, Adejimi A.; Salaudeen, Lukman O. title: The Derivation of the Riemann Analytic Continuation Formula from the Euler’s Quadratic Equation date: 2022-12-20 words: 3655 flesch: 75 summary: DOI:10.46481/jnsps.2023.967 Keywords: Riemann zeta function, Euler’s equation, Meromorphic function, Non-trivial zeros Article History : Received: 31 July 2022 Received in revised form: 20 November 2022 Accepted for publication: 25 November 2022 Published: 20 December 2022 c© 2022 Sci. 5 (2023) 967 3 ζE (z) = (z + 2n) (z − 1) ( kz2 − kz + G(n) ) ; k = 4 (12) Or ζE (z) = (z + 2n) (ez−1 − 1) ( kz2 − kz + G(n) ) ; k = 4 (13) Provided that G(n) is also known. keywords: analytic; continuation; d≤n; enoch; equation; euler; formula; function; log; n≥1; polynomials; quadratic; riemann; zeros; zeta cache: jnsps-967.pdf plain text: jnsps-967.txt item: #244 of 247 id: jnsps-983 author: Olutona, Godwin O. title: Health Risk Assessment of Heavy Metals in Sediment of Tropical Freshwater Stream date: 2023-02-24 words: 9694 flesch: 67 summary: The range of values (mg/kg) of heavy metals in bed sediment were: Fe (2850 – 7260), Mn (58 – 209), Co (0.7 – 33), Ti (21.6 – 67), Ba (1.61 – 9.81), Zn (7.5 – 79), Cu (5.6 – 25), As (8 – 137), Al (273 – 2160), Y (24 – 49), and Sr (0.10 – 5.3). The health risk assessment of heavy metals in the bed sediments revealed that carcinogenic risk was almost insignificant while the non-carcinogenic risk was significant since their values were above the recommended minimal risk level. keywords: accumulation; adult; agency; analysis; anthropogenic; arsenic; assessment; asunle; asunle stream; august; background; background value; bdl; bed; bed sediment; carcinogenic; cdi; children; chronic; co ti; concentration; contamination; daily; day; december; dry; dumpsite; elemental; elements; enrichment; environmental; exposure; factor; february; figure; geo; hazard; health; heavy; heavy metals; high; higher; human; icp; index; intake; journal; kg elemental; level; location; low; manganese; mean; metals; minimal; monthly; nigeria; non; oes; olutona; oral; phys; pollution; respect; results; risk; samples; sampling; sci; science; season; seasonal; sediment; sediment samples; severe; shales; soc; soil; status; stream; study; table; ti ba; total; toxic; typical; university; values; variation; water; wet cache: jnsps-983.pdf plain text: jnsps-983.txt item: #245 of 247 id: jnsps-992 author: Ibor, Ayei; Edim, Edim; Ojugo, Arnold title: Secure Health Information System with Blockchain Technology date: 2023-04-18 words: 5646 flesch: 52 summary: DOI:10.46481/jnsps.2023.992 Keywords: blockchain, health information system, distributed databases, encryption algorithms, medical records Article History : Received: 16 August 2022 Received in revised form: 06 November 2022 Accepted for publication: 06 November 2022 Published: 29 April 2023 Inter- action between the patient and health personnel, including hav- ing access to medical records shapes a crucial piece of the fo- cal activities underlying health information systems. keywords: able; access; application; architecture; authors; blockchain; centralised; client; computer; control; data; database; design; different; electronic; failure; figure; file; folder; hash; health; health information; health records; healthcare; ibor; implementation; information; integrity; international; ipfs; journal; language; layer; management; medical; medical records; network; nig; nodes; participants; parties; patients; peer; personnel; phys; privacy; records; related; results; review; sci; section; secure; security; sense; server; smart; soc; storage; system; technologies; technology; tier; time; transactions; use cache: jnsps-992.pdf plain text: jnsps-992.txt item: #246 of 247 id: jnsps-994 author: Adeyemi, Adewunmi O.; Adeleke, Ismail A.; Akarawak, Eno E. E. title: Modeling Extreme Stochastic Variations using the Maximum Order Statistics of Convoluted Distributions date: 2023-02-24 words: 8429 flesch: 65 summary: The limiting distribution of X(n:n) for a non-degenerate distribution function G(x) belong to the family of extreme value distributions with the mathematical expressions give by Pr { X(n:n) Some other tech- niques for investigating extreme phenomena and the modeling of real life datasets from the extreme scenario includes • The use of generalized extreme value distribution for r- largest order statistics • keywords: 1αθ; adeyemi; annual; application; applied; beta; cdf; convoluted; data; datasets; density; distribution; exponential; extreme; f(n; f(x; family; figure; fit; flood; function; g(x; generalized; goodness; hydrology; i=0; journal; kumaraswamy; maximum; maxos; modeling; models; moments; new; nig; nkwei; n−1∑; order; order statistics; p(−λxθ)[1−ex; parameters; pareto; pdf; phys; plots; precipitation; properties; rainfall; random; results; sample; sci; soc; statistics; study; table; value; weibull; wep; x(n; αθ +1; αθ γ; θ−1; − ex; −1)i;  cache: jnsps-994.pdf plain text: jnsps-994.txt item: #247 of 247 id: jnsps-999 author: Ugbe, F. C.; Ominigbo, O. E.; Akano, A. O. title: Tectonic Setting of the Syenite Around Igarra, Southwestern Nigeria: Constraints from Geochemistry date: 2023-02-24 words: 6286 flesch: 54 summary: Given the orogenic to post-orogenic signatures shown from the discrimination plots for the tectonic setting, we pro- Figure 6: Hacker diagram (major oxides vs. SiO2) the Igarra syenites Figure 7a: Primitive-mantle normalized trace elements pattern for Igarra syenites [chondrite normalization values after 24] pose that although the emplacement of the Igarra syenite com- menced during the active phase of the Pan-African reactivation (probably towards the end of the orogeny), the formation and evolution of the rock continued into the early post-orogenic pe- riod. Sci. 5 (2023) 999 2 try rocks – granites, gneisses, and schists keywords: african; al2o3; analyses; area; attributes; basement; basement complex; belt; boundaries; classification; complex; craton; crustal; earth; elements; event; evolution; feo; field; figure; geochemical; geochemistry; geodynamic; geological; geology; granites; high; igarra; igarra syenites; journal; k2o; major; mapping; mgo; na2o; nigeria; older; origin; orogenic; orogeny; oxides; pan; petrogenesis; phys; plot; post; ppm; ppm ppm; present; rare; ratios; reactivation; reported; research; rocks; sample; schist; sci; sciences; setting; sio2; soc; southwestern; studies; study; syenites; syenitic; tectonic; trace; ugbe; values; vs. cache: jnsps-999.pdf plain text: jnsps-999.txt