item: #1 of 261 id: esrj-100754 author: Bektaş, Sebahattin title: Rigorous spherical bearing with Soldner coordinates and azimuth angles on sphere date: 2022-11-29 words: 3979 flesch: 74 summary: As it is known, the di- rections of the edges are shown with azimuth angles in the geographic coordinate system and the bearing angles in the Soldner coordinate system. Bearing or azimuth angles are frequently used in geodetic calculations. keywords: angle; azimuth; bearing; coordinates; formulas; meridian; soldner cache: esrj-100754.pdf plain text: esrj-100754.txt item: #2 of 261 id: esrj-101477 author: de Oliveira Carvalho-Junior, Oldemar title: Role of Ocean-Atmosphere Interface in Annual and Semiannual SST Cycles in the Indian Ocean date: 2022-11-29 words: 7605 flesch: 53 summary: Observed temperature trends in the Indian Ocean over 1960–1999 and associated mechanisms. The isotherms are mainly meridional along the western boundary, but zonal in the southern Indian Ocean. keywords: component; current; data; figure; harmonic; indian; indian ocean; monsoon; ocean; sea; semiannual; sst; surface; temperature; wind cache: esrj-101477.pdf plain text: esrj-101477.txt item: #3 of 261 id: esrj-103605 author: Liu, Xuemei title: A detection method of urban underground geological anomalies in the United Kingdom based on feature fusion date: 2022-11-29 words: 6543 flesch: 40 summary: It can be seen from the data in the table that the average time consumption of this method in underground space geological data collection, feature extraction, feature fusion, and abnormal physical examination is 105.25 ms, 101.31 ms, 139.55 ms, and 128.45 ms. The highest fusion degree of underground space geological characteristics of London and Sheffield is 98.88% and 98.88%, respectively; 3. keywords: anomalies; attribute; bodies; body; characteristics; data; extraction; feature; fusion; geological; london; method; multi; paper; point; sheffield; space; underground cache: esrj-103605.pdf plain text: esrj-103605.txt item: #4 of 261 id: esrj-103981 author: Vargas Jimenez, Carlos Alberto; Solano, Juan M.; Gulisano, Adriana M.; Santillana, Sergio; Casallas, Edwin A. title: Seismic properties of the permafrost layer using the HVSR method in Seymour-Marambio Island, Antarctica date: 2022-11-29 words: 6765 flesch: 51 summary: Keywords: H/V spectral ratio; seismic response; permafrost; Marambio; Antartic; fluids' saturation Propiedades sísmicas del permafrost a través del método de relaciones espectrales horizontal/vertical en la isla Seymour-Marambio de la Antártida Palabras Clave: Relaciones espectrales H/V; respuesta sísmica; permafrost; Marambio; Antártida; saturación de fluidos Record Manuscript received: 29/07/2022 Accepted for publication: 16/08/2022 How to cite item: Vargas, C. A., Solano, J. M., Gulisano, A. M., Santillana, S., & Casallas, E. A. (2022). Rock quality, seismic velocity, attenuation, and anisotropy. keywords: authors; et al; figure; hvsr; island; layers; marambio; noise; permafrost; properties; ratio; response; seymour cache: esrj-103981.pdf plain text: esrj-103981.txt item: #5 of 261 id: esrj-20901 author: None title: Search | Earth Sciences Research Journal date: None words: 694 flesch: 30 summary: REDIB cuenta con una clara vocación de promoción de la innovación tecnológica de las herramientas de producción editorial. REDIB (Red Iberoamericana de Innovación y Conocimiento Científico) REDIB es una plataforma de agregación de contenidos científicos y académicos en formato electrónico producidos en el ámbito iberoamericano. keywords: earth; journal; search cache: esrj-20901.htm plain text: esrj-20901.txt item: #6 of 261 id: esrj-20984 author: None title: Search | Earth Sciences Research Journal date: None words: 694 flesch: 30 summary: REDIB cuenta con una clara vocación de promoción de la innovación tecnológica de las herramientas de producción editorial. REDIB (Red Iberoamericana de Innovación y Conocimiento Científico) REDIB es una plataforma de agregación de contenidos científicos y académicos en formato electrónico producidos en el ámbito iberoamericano. keywords: earth; journal; search cache: esrj-20984.htm plain text: esrj-20984.txt item: #7 of 261 id: esrj-20991 author: None title: Search | Earth Sciences Research Journal date: None words: 694 flesch: 30 summary: REDIB cuenta con una clara vocación de promoción de la innovación tecnológica de las herramientas de producción editorial. REDIB (Red Iberoamericana de Innovación y Conocimiento Científico) REDIB es una plataforma de agregación de contenidos científicos y académicos en formato electrónico producidos en el ámbito iberoamericano. keywords: earth; journal; search cache: esrj-20991.htm plain text: esrj-20991.txt item: #8 of 261 id: esrj-20992 author: None title: Search | Earth Sciences Research Journal date: None words: 694 flesch: 30 summary: REDIB cuenta con una clara vocación de promoción de la innovación tecnológica de las herramientas de producción editorial. REDIB (Red Iberoamericana de Innovación y Conocimiento Científico) REDIB es una plataforma de agregación de contenidos científicos y académicos en formato electrónico producidos en el ámbito iberoamericano. keywords: earth; journal; search cache: esrj-20992.htm plain text: esrj-20992.txt item: #9 of 261 id: esrj-20993 author: None title: Search | Earth Sciences Research Journal date: None words: 694 flesch: 30 summary: REDIB cuenta con una clara vocación de promoción de la innovación tecnológica de las herramientas de producción editorial. REDIB (Red Iberoamericana de Innovación y Conocimiento Científico) REDIB es una plataforma de agregación de contenidos científicos y académicos en formato electrónico producidos en el ámbito iberoamericano. keywords: earth; journal; search cache: esrj-20993.htm plain text: esrj-20993.txt item: #10 of 261 id: esrj-20994 author: None title: Search | Earth Sciences Research Journal date: None words: 694 flesch: 30 summary: REDIB cuenta con una clara vocación de promoción de la innovación tecnológica de las herramientas de producción editorial. REDIB (Red Iberoamericana de Innovación y Conocimiento Científico) REDIB es una plataforma de agregación de contenidos científicos y académicos en formato electrónico producidos en el ámbito iberoamericano. keywords: earth; journal; search cache: esrj-20994.htm plain text: esrj-20994.txt item: #11 of 261 id: esrj-20995 author: None title: Search | Earth Sciences Research Journal date: None words: 694 flesch: 30 summary: REDIB cuenta con una clara vocación de promoción de la innovación tecnológica de las herramientas de producción editorial. REDIB (Red Iberoamericana de Innovación y Conocimiento Científico) REDIB es una plataforma de agregación de contenidos científicos y académicos en formato electrónico producidos en el ámbito iberoamericano. keywords: earth; journal; search cache: esrj-20995.htm plain text: esrj-20995.txt item: #12 of 261 id: esrj-20996 author: None title: Search | Earth Sciences Research Journal date: None words: 694 flesch: 30 summary: REDIB cuenta con una clara vocación de promoción de la innovación tecnológica de las herramientas de producción editorial. REDIB (Red Iberoamericana de Innovación y Conocimiento Científico) REDIB es una plataforma de agregación de contenidos científicos y académicos en formato electrónico producidos en el ámbito iberoamericano. keywords: earth; journal; search cache: esrj-20996.htm plain text: esrj-20996.txt item: #13 of 261 id: esrj-21095 author: Atya, Magdy A.; Khachay, Olga A; Soliman, Mamdouh M.; Khachay, Oleg Yu; Khalil, Ahmed B.; Gaballah, Mahmoud; Shaaban, Fathy F.; El Hemali, Ibrahim A. title: CSEM IMAGING OF THE NEAR SURFACE DYNAMICS AND ITS IMPACT FOR FOUNDATION STABILITY AT QUARTER 27, 15th OF MAY CITY, HELWAN, EGYPT date: 2010-01-01 words: 6044 flesch: 53 summary: Wide profile data collection; is a procedure employed to measure the electromagnetic response over a volume, therefore, it may be called volume CSEM. Volume CSEM data collection along wide profile. keywords: center; city; data; electromagnetic; hachay; khz; profile; quarter; receiver; surface; transmitter cache: esrj-21095.pdf plain text: esrj-21095.txt item: #14 of 261 id: esrj-21098 author: Londoño B., John Makario title: ACTIVITY AND Vp/Vs RATIO OF VOLCANO-TECTONIC SEISMIC SWARM ZONES AT NEVADO DEL RUIZ VOLCANO, COLOMBIA date: 2010-01-01 words: 6372 flesch: 68 summary: Bohorquez (1993) analyzed arrival times of P and S waves, polarity of the P wave, spectra of frequencies and par- ticle motion of VT earthquake swarms occurred at August - October 1990. VT seismic activities located beneath the crater zone and to the west of the volcano were related with the two phreato-magmatic eruptions that had occurred to date at NRV (Londoño and Sudo, 2001). keywords: activity; crater; del; earthquakes; nevado; nrv; ratio; ruiz; seismic; swarm; volcanic; volcano; zones cache: esrj-21098.pdf plain text: esrj-21098.txt item: #15 of 261 id: esrj-21106 author: Campos, A.; Moreno, S.; Molina, R. title: CHARACTERIZATION OF VERMICULITE BY XRD AND SPECTROSCOPIC TECHNIQUES date: 2009-07-01 words: 5723 flesch: 58 summary: The X-Ray identification and crystal struc- tures of clay minerals. Interlayer and interca- lation complexes of clay minerals. keywords: campos; charge; clay; enero; et al; mineral; p p; vermiculite; vol cache: esrj-21106.pdf plain text: esrj-21106.txt item: #16 of 261 id: esrj-21111 author: Yesugey, Sadik Cengiz title: COMPARATIVE EVALUATION OF THE INFLUENCING EFFECTS OF GEOMAGNETIC SOLAR STORMS ON EARTHQUAKES IN ANATOLIAN PENINSULA date: 2009-01-01 words: 4438 flesch: 58 summary: Keywords: Earthquake, Earthquake triggering, geomagnetic storms. Phone: +902324535716 Fax: +902324532986 Corresponding author Email: cengiz.yesugey@deu.edu.tr ABSTRACT Earthquakes are tectonic events that take place within the fractures of the earth’s crust, namely faults. keywords: data; day; earthquakes; magnitude; range; storms; values cache: esrj-21111.pdf plain text: esrj-21111.txt item: #17 of 261 id: esrj-21112 author: K, Srinivasamoorthy; VS, Sarma; M, Vasantavigar; K, Vijayaraghavan; S, Chidambaram; R, Rajivganthi title: ELECTRICAL IMAGING TECHNIQUES FOR GROUNDWATER POLLUTION STUDIES: A CASE STUDY FROM TAMIL NADU STATE, SOUTH INDIA date: 2009-01-01 words: 4767 flesch: 53 summary: This depth layer between the depth ranges (15-40 m) has a comparatively moderate resistivity from 150 to 1018 Ù m. A thick layer with a comparatively high resistivity (>218 Ùm) is also observed below the lay- ers of low to intermediate resistivity rocks. The profile indicates that the area is underlined by varying high resistivity rock materials by sharp changes in their electrical resistivity values. keywords: area; contamination; depth; groundwater; imaging; india; resistivity; rock; study; survey; tamil; zone cache: esrj-21112.pdf plain text: esrj-21112.txt item: #18 of 261 id: esrj-21113 author: Krishnamacharyulu, S.K.G.; Poornachandra Rao, G.V.S. title: MAGNETIC AND PALAEOMAGNETIC STUDIES AS AN AID IN DECIPHERING GROUNDWATER FLOW: A CASE STUDY FROM DECCAN TRAPS date: 2009-01-01 words: 2702 flesch: 50 summary: This paper presents a novel idea on the utilization of the palaeomagnetic studies cou- pled with ground magnetic anomalies in deciphering groundwater flow. Magnetic anomalies in an area of around 4 sq. km in the university campus, Nanded, Maharashtra, India brought out two distinct anomaly closures that can be attributed to bodies with different di- rections of magnetizations. keywords: anomalies; area; deccan; flow; groundwater; india; palaeomagnetic; studies; study cache: esrj-21113.pdf plain text: esrj-21113.txt item: #19 of 261 id: esrj-21114 author: Muzio, Rossana; Peel, Elena; Morales, Ethel; Veroslavsky, Gerardo; Conti, Bruno title: MESOZOIC MAGMATISM IN EAST URUGUAY: PETROLOGICAL CONSTRAINTS RELATED TO THE SIERRA SAN MIGUEL REGION date: 2009-01-01 words: 6087 flesch: 70 summary: Geología de la Sierra de San Miguel, depar- tamento de Rocha (Uruguay). RESUMEN Este trabajo presenta nuevos resultados geológico-estructurales y geoquímicos relacionados con el magmatismo Mesozoico del extremo Este de Uruguay (Sierra de San Miguel, Departamento de Rocha), asociados a la apertura del océano Atlántico Sur. keywords: dykes; et al; felsic; magmatism; mesozoic; miguel; muzio; region; rocks; samples; san; sierra; sub; uruguay; veroslavsky; volcanic cache: esrj-21114.pdf plain text: esrj-21114.txt item: #20 of 261 id: esrj-21115 author: A., Akinmosin; O.O., Osinowo; M. A., Oladunjoye title: RADIOGENIC COMPONENTS OF THE NIGERIAN TAR SAND DEPOSITS date: 2009-01-01 words: 4170 flesch: 64 summary: For instance, naturally but non-series 40K was detected at 1460.75keV in all the samples except in Tar L2, Tar L3, Tar sand 13, Tar sand 17 and Tar sand 18; there activity values range between 7.04 ± 0.45Bqkg-1 and 1003.91 ± 48.57Bqkg-1 The 238U series are more prominent in the sam- ples analyzed than the 232Th series.214Bi activity val- ues range between 5.02 ± 0.33Bqkg-1 and 193.01 ± 19.94Bqkg-1; 226Ra activity values range between 6.10 ± 0.84BgKg-1 and 148.07 ± 9.81BgKg-1 ; 228Ac activity values range between 2.14 ± 0.60Bqkg-1 and 53.66 ± 4.44Bqkg-1 ; 208TI values range between 1.09 ± 0.38Bqkg-1 and 86.81 ± 2.6Bqkg-1. 130.33 1.14 S15 Tar sand 66.41 ± 5.00 53.66 ±4.44 92.37 0.81 S16 Tar sand 39.19 ± 3.11 26.52 ±5.22 78.36 0.68 S17 keywords: adegoke; basin; deposits; dose; enu; formation; gamma; geology; nigeria; samples; sand; shale; tar cache: esrj-21115.pdf plain text: esrj-21115.txt item: #21 of 261 id: esrj-21116 author: L.L.A, Castillo; T. de S., Kazmierczak; Jr., F., Chemale title: RIO GRANDE CONE TECTONO-STRATIGRAPHIC MODEL – BRAZIL: SEISMIC SEQUENCES date: 2009-01-01 words: 5061 flesch: 50 summary: Interpretação Sismoes- tratigrafica da Porção da Bacia de Pelotas que engloba o Cone de Rio Grande e a Avaliação do seu Potencial Petrolífero. Dip seismic line display of Seismic Attribute analysis and seismic stratigraphy interpretation JULIO 6-GEOCIENCIAS-VOL 13-1 2009.prn D:\GEOCIENCIAS 13-1 JUN 2009\GEOCIENCIAS-VOL 13-1 2009.vp martes, 07 de julio de 2009 18:10:50 p p p Composite 133 lpi at 45 degrees a sequence stratigraphic model, and delineated by geomorphological elements like channels. keywords: attributes; cone; data; faults; figure; geociencias; grande; interpretation; julio; model; p p; rio; seismic; sequences; stratigraphy; vol cache: esrj-21116.pdf plain text: esrj-21116.txt item: #22 of 261 id: esrj-21117 author: Balobaev, V. T.; Kutasov, I. M.; Eppelbaum, L. V. title: THE MAXIMUM EFFECT OF DEEP LAKES ON TEMPERATURE PROFILES – DETERMINATION OF THE GEOTHERMAL GRADIENT date: 2009-01-01 words: 5327 flesch: 60 summary: (3) we obtain � � �* ( , ) ( )� � � � dT z dz T dM dz is ot � (11) or �� � �� � � �* ( )T T dM dz is ot (12) Introducing the reduced temperatures, TR(�, z) from eq. � �* ( , ) ( ) ( ) / � � � � � � � � � � � � T z z T T R z R is ot i i 0 2 2 2 3 2 (9) �� � � �� � � � � � � � � � �* ( ) ( ) / is ot i i T R z R 2 2 2 3 2 (10) keywords: borehole; climate; effect; geothermal; lake; profiles; surface; temperature cache: esrj-21117.pdf plain text: esrj-21117.txt item: #23 of 261 id: esrj-21118 author: A. Candeiro, Carlos Roberto title: VERTEBRATES OF THE MARÍLIA FORMATION (LATE MAASTRICHTIAN) FROM THE PEIRÓPOLIS PALEONTOLOGICAL SITE: TOWARD A BETTER UNDERSTANDING date: 2009-01-01 words: 4214 flesch: 55 summary: Ovo e fragmentos de cascas de ovos de dinossauros, provenientes da região de Peirópolis, Uberaba, 14 CARLOS ROBERTO A. CANDEIRO JULIO 6-GEOCIENCIAS-VOL 13-1 2009.prn D:\GEOCIENCIAS 13-1 JUN 2009\GEOCIENCIAS-VOL 13-1 2009.vp martes, 07 de julio de 2009 18:10:41 p p p Composite 133 lpi at 45 degrees Minas Gerais. La ocurrencia en Peirópolis de taxa típicos y de amplia distribución en la América del Sur es importante para la correlación entre keywords: area; bauru; brazil; candeiro; cretaceous; formation; gerais; julio; marília; minas; peirópolis; site; vertebrate; vol cache: esrj-21118.pdf plain text: esrj-21118.txt item: #24 of 261 id: esrj-21188 author: Pabón, J.D.; Dorado, J. title: INTRASEASONAL VARIABILITY OF RAINFALL OVER NORTHERN SOUTH AMERICA AND CARIBBEAN REGION date: 2008-07-01 words: 5214 flesch: 50 summary: 62 Aeropuerto G. L. Valencia 2,43 –76,58 1730 Colombia 63 La Sierra 2,37 –77,37 1870 Colombia 64 La Macarena 2,30 –73,13 350 Colombia 65 66 Paleterá Aeropuerto Antonio Nariño 2,08 1,67 –76,05 –77,47 2900 1796 Colombia Colombia 67 68 69 70 Aeropuerto San Luis Aeropuerto Artunduaga Obonuco Valparaiso 1,42 1,36 1,30 1,15 –78,13 –75,32 –77,05 –75,42 2961 244 2710 270 Colombia Colombia Colombia Colombia Pabon, 2000; Giannini et al., 2000; Chang & Stephenson, 2000; Chang & Taylor, 2002; Taylor et al., 2002; Poveda, 2004, Nobre et al., 2006), espe- cially the associated to ENSO, with purpose to im- prove seasonal-interannual climate prediction. Country 1 Montego Bay 18,50 –77,91 1 Jamaica 2 3 Las Américas Aeropuerto San Juan Intl 18,43 18,41 –69,66 –66,00 18 19 Dominican Rep. Puerto Rico 4 5 Barahona Kingston 18,20 17,93 –71,10 –76,78 3 3 Dominican Rep. Jamaica 6 Aeropuerto El Embrujo 13,37 –81,35 1 Colombia 7 Aeropuerto Sesquicentenario 12,58 –81,72 1 Colombia 8 Aeropuerto Queen Beatrix 12,50 –70,01 18 Aruba 9 10 Aeropuerto Hato Aeropuerto Flamingo 12,20 12,15 –68,96 –68,28 9 6 Netherl Antills Netherl Antills 11 12 Manaure Coro 11,77 11,41 –72,45 –69,66 1 16 Colombia Venezuela 13 14 Matitas Esc Agr Carraipia 11,25 11,22 –73,05 –72,37 20 118 Colombia Colombia 15 Apto. keywords: aeropuerto; america; caribbean; climate; colombia; days; intraseasonal; isv; period; precipitation; rainfall; region; south; variability cache: esrj-21188.pdf plain text: esrj-21188.txt item: #25 of 261 id: esrj-21189 author: Akintola, O. F; Adekeye, J. I. D. title: MINERALIZATION POTENTIALS OF PEGMATITES IN THE NASARAWA AREA OF CENTRAL NIGERIA date: 2008-07-01 words: 11811 flesch: 60 summary: About 100km north-east of the area of study at Wamba, rare metal pegmatites have also been geochemically linked to peraluminous late Pan-Afri- can tectonic granitoids, the emplacement of which have largely been controlled by the regional fractures (Kuster, 1990). ThehighnegativecorrelationofK/Rb versus Cs is characteristic of K-feldspars of rare metalpegmatitesandhasbeenusedalongwithK/Rb versusCs in themicasas reliableprospectionaids for rare metal pegmatites (Preinfalk et al., 2000). keywords: african; area; bdl; elements; feldspars; mineralization; muscovites; nigeria; pan; pegmatites cache: esrj-21189.pdf plain text: esrj-21189.txt item: #26 of 261 id: esrj-21191 author: Demirel, Mehmet C.; Kahya, Ercan; Rivera, Diego title: DISCUSSION OF “CLUSTERING ON DISSIMILARITY REPRESENTATIONS FOR DETECTING MISLABELLED SEISMIC SIGNALS AT NEVADO DEL RUIZ VOLCANO” BY MAURICIO OROZCO-ALZATE, AND CÉSAR GERMÁN CASTELLANOS-DOMÍNGUEZ date: 2008-07-01 words: 1878 flesch: 55 summary: Also, its multi-resolution property can help detecting the clusters at different levels of accuracy (Sheikholeslami et al., 1998). In- deed, Arciniega-Ceballos et al. (2008) applied bandpass filters before clustering in seismic data and Rouyer et al., (2008) applied a wave- let-based clustering technique. keywords: analysis; clustering; demirel cache: esrj-21191.pdf plain text: esrj-21191.txt item: #27 of 261 id: esrj-21192 author: Ríos Reyes, Carlos Alberto; Castellanos Alarcón, Oscar Mauricio; Takasu, Akira title: A NEW INTERPRETATION FOR THE GARNET ZONING IN METAPELITIC ROCKS OF THE SILGARÁ FORMATION, SOUTHWESTERN SANTANDER MASSIF, COLOMBIA date: 2008-01-01 words: 14966 flesch: 57 summary: Yttrium is potentially useful for monitoring reactions involving Ca-rich minerals such as epidote and plagioclase because this element substitutes for Ca in mineral structures and Y discon- tinuities in garnet zoning may correlate with inflec- tions in Ca zoning (Hickmott & Spear, 1992). If the consumption or production of these phases and the changes in how Ca and other elements are locally partitioned between garnet and other minerals, accounts for garnet zoning, there should be trends in zoning in other Ca-rich phases. keywords: core; element; figure; formation; garnet; growth; low; mineral; phases; rim; rocks; santander; silgará; staurolite; trace; vol; zone; zoning cache: esrj-21192.pdf plain text: esrj-21192.txt item: #28 of 261 id: esrj-21197 author: Bakkali, Saad; Amrani, Mahacine title: DENOISING RESISTIVITY PHOSPHATE “DISTURBANCES” USING HAAR MOTHER WAVELET TRANSFORM (SIDI CHENNANE, MOROCCO) date: 2008-01-01 words: 3956 flesch: 53 summary: [ , ] x if x x if x x if x � � � � � � � � � 1 0 1 2 1 1 2 1 0 0 1 The signal f(x) then is described as: f x c x d xp q p q p q o q qp pq ( ) ( ) ( ), , , ,� � ��� � 0 0 0 � � (6) where c f x x dxp q p q0 0, ,( ) ( )� � � � (7) and d f x x dxp q p q, ,( ) ( )� � � � (8) In the expansion of f(x) by equation 6, the first term represents the approximation of the signal and the second the signal details, filtered by the approxi- mation. keywords: analysis; data; disturbances; haar; mother; phosphate; resistivity; signal; transform; wavelet cache: esrj-21197.pdf plain text: esrj-21197.txt item: #29 of 261 id: esrj-21199 author: Imhof, Luis Armando; Santamarina, Juan Carlos title: SEISMIC VELOCITY DETERMINATION IN GRAVEL AND SANDS USING PIEZOCRYSTALS date: 2008-01-01 words: 4116 flesch: 60 summary: After obtaining the first re- cord the cap was removed and more sample material was added, until the next distance H, repeating the acquisition. Table 1 summarizes sample characteristics which brought to six complete tests. keywords: 2-#8; figure; frequency; propagation; sample; signal; velocity; waves cache: esrj-21199.pdf plain text: esrj-21199.txt item: #30 of 261 id: esrj-21200 author: Batayneh, Awni T. title: MAPPING SUBSURFACE FORMATIONS ON THE EASTERN RED SEA COAST IN JORDAN USING GEOELECTRICAL TECHNIQUES: GEOLOGICAL AND HYDROGEOLOGICAL IMPLICATIONS date: 2007-07-01 words: 5131 flesch: 53 summary: Among the four types of curves, Type I and Type II curves show similar shape of field curves with layer resistivities decreasing with depth such that ρ1>ρ2>ρ3. Based on the lithological log from the K3028 borehole, the geological interpretation of the geoelectrical model for VES 4 and VES 5 (Fig. 2) is: (i) a resistive layer (500-1700 ohm-m) with variable thickness and moisture content at the surface, which consists of a mixture of gravel, silt, and sand; (ii) a thick clay and clayish sand layer having resistivity values of 30 to 40 ohm-m; and (iii) a saturated sandy layer with saline water having resistivity values of 1 to 10 ohm-m. FIELD RESULTS ANALYSIS OF VES CURVES Due to the distinctive characteristics features in the field of the apparent resistivity curves, the VES stations show four types of curves: Type I, Type II, Type III, and Type IV (Figure 3). keywords: area; clay; curves; field; fig; jordan; layer; ohm; resistivity; sand; type; water cache: esrj-21200.pdf plain text: esrj-21200.txt item: #31 of 261 id: esrj-21201 author: Kamguia, J.; Tabod, C. T.; Tadjou, J. M.; Manguelle-Dicoum, E.; Nouayou, R.; Kande, L. H. title: Accurate gravity anomaly interpolation: a case-study in Cameroon, Central Africa date: 2007-07-01 words: 3578 flesch: 62 summary: Theoretically, Bouguer gravity anomalies are smoother and therefore suited for prediction processes than free-air anomalies. This paper presents the comparison of various prediction methods applied on different types of gravity anomalies and considering the relative geological complexity of the study area. keywords: anomalies; anomaly; areas; bouguer; cameroon; data; gravity; interpolation; point; prediction cache: esrj-21201.pdf plain text: esrj-21201.txt item: #32 of 261 id: esrj-21203 author: H. Gallardo, Adrian; Marui, Atsunao title: Hydraulic characteristics of sedimentary deposits at the J-PARC proton-accelerator, Japan date: 2007-07-01 words: 6163 flesch: 49 summary: Although not shown here, data collected from other wells indicated the lowest salinities occur in the upper 40 m below the ground, where alluvial deposits of higher hydraulic conductivity promote a rapid inflow of meteoric waters and the existence of a freshwater aquifer. On the other hand, hydraulic conductivity was measured by a number of parameters such as a log-normal distribution. keywords: accelerator; conductivity; deposits; distribution; grain; japan; parc; permeability; porosity; properties; proton; sediments; size; soil; water; wells cache: esrj-21203.pdf plain text: esrj-21203.txt item: #33 of 261 id: esrj-21204 author: Greinwald, S.; Ortega, A.; Rugeles, A.; Ips, M., v. Seth title: Self-potential signals caused by eruptions of the Galeras volcano – Colombia date: 2007-07-01 words: 2979 flesch: 62 summary: En julio del 2004 un nuevo período de actividad del Galeras comenzó con dos emisiones fuertes de ceniza. en el volcán de Galeras, al sudoeste de Colombia. keywords: activity; component; eruption; galeras; july; signals; station cache: esrj-21204.pdf plain text: esrj-21204.txt item: #34 of 261 id: esrj-21205 author: Alzate, Mauricio Orozco; Castellanos-Domínguez, César Germán title: CLUSTERING ON DISSIMILARITY REPRESENTATIONS FOR DETECTING MISLABELLED SEISMIC SIGNALS AT NEVADO DEL RUIZ VOLCANO date: 2007-07-01 words: 2699 flesch: 51 summary: A generalized kernel approach to dissimilarity based classification. In addition, recent studies have claimed that the dissimilarity- based classification approach is a feasible and sometimes advantageous alternative to the feature-based method (Duin et al., 1998, Pękalska et al., 2001, Pękalska and Duin, 2002, Paclík and Duin, 2003b, Pękalska and Duin, 2005). keywords: classification; clustering; data; dissimilarity; duin; ruiz cache: esrj-21205.pdf plain text: esrj-21205.txt item: #35 of 261 id: esrj-21206 author: Vargas J., Carlos A.; Zamora R, Armando; Pardo, Andres title: GEOINFORMATION DENSITY: A criterion on ANH Block Negotiation date: 2007-01-01 words: 2974 flesch: 38 summary: METHODOLOGICAL ASPECTS Based on the general information included within the ANH Exploration and Production Information Service - EPIS such as longitude and location of several seismic programs, gravimetric, magnetometric, and geochemical location coverage along with well distribution performed during the exploratory history of Colombia, information distribution densities have been determined from territory area discretization (e.g., 25km x 25km). Cumulative probability curves for seismic density information fitted to typical normal and exponential distribution curves. keywords: anh; block; data; densities; density; distribution; figure; information; negotiation cache: esrj-21206.pdf plain text: esrj-21206.txt item: #36 of 261 id: esrj-21208 author: Piedrahita, Carlos; Montaña, Clara L. title: METHODOLOGY IMPLEMENTED FOR THE 3D-SEISMIC MODELLING USING GOCAD AND NORSAR 3D SOFTWARE APPLIED TO COMPLEX AREAS IN THE LLANOS FOOTHILLS date: 2007-01-01 words: 2530 flesch: 54 summary: E-mail: clara.montana@ecopetrol.com.co Phone Number: (577) 6847199 ABSTRACT A methodology has been applied in order to use seismic modeling and generate synthetic data which are compared with results from field data. Seismic modeling has turned into the new option for designing acquisition parameters, being able to simulate the whole seismic experiment before acquisition. keywords: areas; data; figure; gocad; methodology; modeling; norsar; software cache: esrj-21208.pdf plain text: esrj-21208.txt item: #37 of 261 id: esrj-21212 author: Orozco, Mauricio; García, Marcelo E.; P.W. Duin, Robert; G. Castellanos, César title: DISSIMILARITY-BASED CLASSIFICATION OF SEISMIC SIGNALS AT NEVADO DEL RUIZ VOLCANO date: 2006-07-01 words: 2965 flesch: 42 summary: Among the applications of pattern recognition techniques to volcanic-seismic signals, two recent works are highlighted: Automatic classification of seismic signals at Mt. Vesuvius volcano, Italy (Scarpetta et al., 2005) and automatic classification of seismic events at Soufrière Hills volcano, Montserrat (Langer et al., 2006). Dissimilarity representations were constructed by calculating pairwise Euclidean distances and a non-Euclidean measure on the normalized spectra, which is based on the difference in area between spectral curves. keywords: classification; classifiers; dissimilarity; duin; problem; representations; ruiz; signals cache: esrj-21212.pdf plain text: esrj-21212.txt item: #38 of 261 id: esrj-21215 author: López K, Jesús M.; Moreira, Jesús; Gandarillas, José title: GEOLOGY OF THE FLORENCIA GOLD – TELLURIDE DEPOSIT (CAMAGÜEY, CUBA) AND SOME METALLURGICAL CONSIDERATIONS date: 2006-07-01 words: 4211 flesch: 58 summary: The principle aim of this study was to determine the mineral assemblage of gold ore deposits and the way in which precious gold and silver elements occur. Valuable information is provided for the exploration, mining and processing of gold ores from other nearby deposits with similar characteristics. keywords: camagüey; cuba; deposit; florencia; gold; mineral; silver; south; telluride cache: esrj-21215.pdf plain text: esrj-21215.txt item: #39 of 261 id: esrj-21218 author: Pérez, Gabriel; Marfurt, Kurt title: IMPROVING VERTICAL AND LATERAL RESOLUTION BY STRETCH-FREE, HORIZON-ORIENTED IMAGING date: 2006-07-01 words: 3429 flesch: 57 summary: In the interest of maximi- zing the science with a reasonable computational effort, pre-stack time migration has been used as the preferred imaging method. HORIZON-ORIENTED STRETCH-FREE PRESTACK IMAGING As discussed by Levin (1998), wavelet stretch occurs in all pre-stack imaging methods. The central sample is migra- ted to the “exact” position in the output and, for time migration; surrounding samples are migra- ted to positions in which the difference in time with respect to the central migrated sample are preserved. keywords: data; horizon; migration; offset; stretch; target cache: esrj-21218.pdf plain text: esrj-21218.txt item: #40 of 261 id: esrj-21226 author: Eppelbaum, L.V.; Kutasov, I.M.; Barak, G. title: GROUND SURFACE TEMPERATURE HISTORIES INFERRED FROM 15 BOREHOLES TEMPERATURE PROFILES: COMPARISON OF TWO APPROACHES date: 2006-01-01 words: 4622 flesch: 60 summary: Deriving century – long trends of surface temperature change from borehole temperatures, Geophysical Research Letters, 23, 257-260. Borehole temperatures, climate change and the pre-observational surface air temperature mean: Allowance for hydraulic conditions, Global Planetary Change, 45, 265-276. keywords: borehole; change; ground; gsth; model; profiles; surface; table; temperature; warming cache: esrj-21226.pdf plain text: esrj-21226.txt item: #41 of 261 id: esrj-21228 author: Lushnikov, Sergey V.; Frank, Yulia A.; Vorobyov, Danil S. title: OIL DECONTAMINATION OF BOTTOM SEDIMENTS EXPERIMENTAL WORK RESULTS date: 2006-01-01 words: 3376 flesch: 51 summary: Corresponding Author: Sergey V. Lushnikov, e-mail: pribor@mail.tomsknet.ru ABSTRACT This article presents the results of experimental work during 2004-2005 on oil decontamination of bottom sediments of Lake Schuchye, situated in the Komi Republic (Northern Russia). Determination of the necessary decontamination level of bottom sediments of the reservoir, after which mechanisms of natural self-purification start actively working, is very important for a wide appli- cation of flotation technology to oil decontamination of water bodies. keywords: decontamination; lake; oil; russian; schuchye; sediments; surface; water; work cache: esrj-21228.pdf plain text: esrj-21228.txt item: #42 of 261 id: esrj-21235 author: Jaramillo Giraldo, Erika Cristina; Vega Manchola, Ximena; Monsalve Jaramillo, Hugo title: APPLICATION OF GRAVIMETRY AND ELECTRIC TOMOGRAPHY METHODS TO OBTAIN STRATIGRAFIC PROFILES: CASE STUDY AT UNIVERSITY OF QUINDÍO AND PUERTO ESPEJO AREA, ARMENIA-COLOMBIA date: 2005-01-01 words: 4547 flesch: 42 summary: Memorias mapa ge- ológico generalizado del departamento del Quindío. INGEOMINAS, Bogotá. El Sismo de Armenia (25-01-99, Mw=6.2): Análisis telesísmico y características de las ondas de cuerpo. keywords: area; electric; espejo; figure; humidity; layers; profiles; puerto; quindío; resistivity; university; values cache: esrj-21235.pdf plain text: esrj-21235.txt item: #43 of 261 id: esrj-21236 author: Monsalve Jaramillo, Hugo; Correa Montaño, Isabel Cristina; Valencia, Mina William title: SEISMOLOGICAL OBSERVATORY AT QUINDIO UNIVERSITY (O.S.Q.): A FIRM LONG-TERM STEP TOWARD RESOLVING REGIONAL SEISMICITY date: 2005-01-01 words: 5509 flesch: 52 summary: A firm Long-Term Step Toward Resolving Regional Seismicity Figure 2. Number of local earthquakes registered by the OSQ, from 1999 to August 2005. For these reasons, the OSQ (Sesimological Observatory of Quindio, from its acronym in Spanish) and INGEOMINAS, as government offices in charge of monitoring earthquake activity, have to contribute, along with research centers of the region, to the development of seismological studies and analysis of local tectonic activity in order to obtain new knowledge regarding natural disasters which are threat to the communities in region and be able to better understand the internal crustal structure in the Coffee Belt region. keywords: armenia; coffee; earthquakes; events; local; magnitude; model; monsalve; quindío; region; seismicity; seismological; university cache: esrj-21236.pdf plain text: esrj-21236.txt item: #44 of 261 id: esrj-21237 author: Vargas, Carlos A.; Kammer, Andreas; Valdes, Mireya; Rodríguez, Carlos E.; Caneva, Alexander; Sánchez, Jhon J.; Arias, Eliana; Cortes, Carlos A.; Mora, Héctor title: NEW GEOLOGICAL AND GEOPHYSICAL CONTRIBUTIONS IN THE SECTION IBAGUÉ – ARMENIA, CENTRAL CORDILLERA - COLOMBIA date: 2005-01-01 words: 3878 flesch: 49 summary: Unidades litodémicas de la Cordillera Central de Colombia. Contribución al conocimiento de la Cordillera Central de Colombia Sección entre Ibagué y Armenia. keywords: armenia; cajamarca; carlos; central; colombia; complex; cordillera; fault; figure; ibagué; rocks; section cache: esrj-21237.pdf plain text: esrj-21237.txt item: #45 of 261 id: esrj-21239 author: Karlin, Lev; Villegas, Nancy title: SIMULATION OF NEAR-SURFACE LAYER OF THE COLOMBIAN PACIFIC OCEAN date: 2005-01-01 words: 4427 flesch: 57 summary: Sunny and weak wind weather regime If in the ocean surface exists a convective mixed layer and the mixture of this layer is so strong that the temperature vertical gradient is zeroed, then we use heat equation in vertical direction, integrating from surface to inferior boundary of convective layer h: t T h q q q qT So h T h 0 02 2 = + - -R 7) here, q So is the radiation flux through ocean-atmo- sphere boundary, °Cm/s; q h is the radiation flux on bottom boundary of convective layer, °Cm/s; qT0R is the heat flux through ocean surface caused by evaporation, turbulent heat exchange and long-wave radiation, °Cm/s. Equation (7) requires the expression of turbulent energy balance integrated in limits of convective layer. Mixed layer thickness with night convection regime is deepened (in average) in 15 m, with Tw change from 27,3 to 26.9°C. keywords: hours; layer; nsl; station; thickness; time; wind cache: esrj-21239.pdf plain text: esrj-21239.txt item: #46 of 261 id: esrj-21240 author: Bakkali, Saad title: ANALYSIS OF PHOSPHATE DEPOSIT “DISTURBANCES” USING THE HORIZONTAL-GRADIENT RESPONSES OF RESISTIVITY DATA (OULAD ABDOUN, MOROCCO) date: 2005-01-01 words: 3312 flesch: 58 summary: A map of apparent resistivity anomalies of the area of study. High values of apparent resistivity were encountered due to the presence of near-vertical faulting between areas of contrasting resistivity, and fault zones which may contain more or less highly conducting fault gouge. keywords: deposit; depth; disturbances; figure; gradient; horizontal; map; phosphate; resistivity; rock cache: esrj-21240.pdf plain text: esrj-21240.txt item: #47 of 261 id: esrj-21241 author: Bravo Niño, Claudia Lily; Montes Vides, Luis Alfredo title: WAVE EQUATION DATUMING TO CORRECT TOPOGRAPHY EFFECT ON FOOTHILL SEISMIC DATA date: 2005-01-01 words: 2468 flesch: 56 summary: Recently effects of topography in foothill data have been studied (Malaver et al., 2005; Montes et al 2003) and new approaches have been proposed to increase quality in seismic data recorded in these regions (Montes et al. 2005). The shots were upward continued to a rough surface through WED, simulating seismic data recorded in foothill zones, one of these synthetic shots is Figure 4. keywords: data; datum; equation; figure; shot; static; topography; wave cache: esrj-21241.pdf plain text: esrj-21241.txt item: #48 of 261 id: esrj-21247 author: Gómez Londoño, Ernesto; Castillo López, Luís; Kazmierczak, Thaís de Souza title: USING THE KARHUNEN-LOÈVE TRANSFORM TO SUPPRESS GROUND ROLL IN SEISMIC DATA date: 2005-01-01 words: 2829 flesch: 58 summary: The conventional filtering techniques: f-k, High-Pass and BandPass are applied in the frequency domain but in the case of Ground Roll amplitude stronger than reflection signals, f-k filters cause serious distortion of the signal (Karsh and Bayrak, 2004). ABSTRACT The Sacchi’s algorithm (2002) based on the Karhunen-Loève (K-L) Transform was modified and imple- mented to suppress Ground Roll without distortion of the reflection signals, it provided better results than conventional techniques for noise removal like f-k, High-Pass and Band Pass Filters. keywords: amplitude; data; figure; filter; gather; ground; roll; seismic; transform cache: esrj-21247.pdf plain text: esrj-21247.txt item: #49 of 261 id: esrj-21257 author: Moncayo, Édgar; Vargas, Carlos; Durán, Juan title: TEMPORAL VARIATION OF CODA-Q AT GALERAS VOLCANO, COLOMBIA date: 2004-01-01 words: 3167 flesch: 62 summary: ABSTRACT The Temporal variation of coda-Q was analyzed for Galeras volcano, located in the Andes of southwestern Colombia. Key words: attenuation, coda-Q, scattering, Colombia, Galeras volcano. keywords: changes; coda; colombia; eruption; galeras; volcano cache: esrj-21257.pdf plain text: esrj-21257.txt item: #50 of 261 id: esrj-21258 author: Trenkamp, Robert; Mora P, Héctor; Salcedo H, Elkin; Kellogg, James N. title: POSSIBLE RAPID STRAIN ACCUMULATION RATES NEAR CALI, COLOMBIA, DETERMINED FROM GPS MEASUREMENTS (1996-2003) date: 2004-01-01 words: 4622 flesch: 52 summary: al norte y occidente de Cali. Igualmente Robert Trenkamp et al. 26 asociado a la subducción oblicua de la placa de Nazca en el corte de Colombia y Ecuador es el escape del bloque Norandino (NAB). keywords: analysis; cali; cauca; colombia; data; del; earthquakes; gps; measurements; rates; south; strain cache: esrj-21258.pdf plain text: esrj-21258.txt item: #51 of 261 id: esrj-21259 author: Sánchez, John J.; McNutt, Stephen R. title: UNEXPECTED RESPONSE OF MT. WRANGELL VOLCANO, ALASKA, TO THE SHAKING FROM A LARGE REGIONAL EARTHQUAKE: A PUZZLE FOR INTERMEDIATE-TERM EARTHQUAKE-VOLCANOES INTERACTIONS date: 2004-01-01 words: 7243 flesch: 58 summary: 43 some step-wise changes in earthquake rates at the volcano. 37 We investigated the sensitivity of the z values versus time curve to the presence of abrupt changes in seismicity rates by computing the z values of several synthetic data sets with varying amounts of change (decreases) in the number of earthquakes per unit time. keywords: change; data; decrease; dfe; earthquakes; figure; rates; seismicity; time; values; volcano; wrangell; z values cache: esrj-21259.pdf plain text: esrj-21259.txt item: #52 of 261 id: esrj-21260 author: Villegas, Nancy title: FINE THERMOHALINE STRUCTURE OF THE COLOMBIAN PACIFIC OCEAN date: 2004-01-01 words: 3341 flesch: 57 summary: Numbers of station and type of stability Layers, m 1 5 14 17 29 33 42 43 47 49 79 81 107 111 114 0-10 LC AS AS AI AS LC AI AS AS SF AS SF SF AS AI 10-25 AS LC AS AS AS AS AS AS AS AS AS AS AS AS AS 25-50 AS AS AS AS AS AS AS AS AS AS SF SF AS AS SF 50-75 AS AS AS SF AS AS AS AS AS AS AS AS AS AS AS 75-100 AS AS AS AS AS SF SF AS SF SF SF SF AS SF AS 100-150 AS AS AS AS AS AS AS AS SF AS AS SF SF AS SF 150-200 AS SF AS SF SF SF AS SF SF AS SF AS SF SF AS 200-300 SF SF SF AS SF SF SF SF SF SF SF SF SF SF SF 300-400 – SF SF SF SF SF SF SF SF SF – SF SF SF SF 400-500 – SF SF – – SF AS SF – SF – AS SF SF SF 500-600 – – – – – – – – – SF – – SF – SF CONCLUSIONS Layers with predominance of different mechanisms of fine structure were determined. In shift instability of currents and internal waves, turbulence and elements of fine structure of hydrophysical fields arise under action of strong hydrodynamical instability in zones with high vertical gradients of speed current, like located areas observed as separate turbulent spots (Benilov, 1985, Maderich and Nikishev, 1986). keywords: colombian; fine; ocean; pacific; sf sf; stability; structure; temperature; vertical cache: esrj-21260.pdf plain text: esrj-21260.txt item: #53 of 261 id: esrj-21261 author: Riascos, Pedro; Racines, Andres; Caicedo, Jhon; Mejia, Jorge; Meyer, Hans title: OSSODAS, A PORTABLE DIGITAL SYSTEM FOR SEISMOLOGICAL SIGNAL ACQUISITION date: 2004-01-01 words: 1728 flesch: 37 summary: System description The digital acquisition system has been provided with six analog input channels available for instrumentation, which can be connected to two sensors (i.e., a tri-axial seismometer or 3- components accelerometer). In brief, we propose in this paper a system design option for seismological instrumentation, which presents significant advantages also for other regions and countries with high seismicity and needs of earthquake monitoring, but have serious limitations in acquiring and maintaining commercial systems imported from developed countries. keywords: acquisition; data; digital; linux; ossodas; signal; stage; system cache: esrj-21261.pdf plain text: esrj-21261.txt item: #54 of 261 id: esrj-21262 author: Rodríguez, Óscar; Obando, Milton; Castillo, Luis; Cepeda, Héctor title: PYROCLASTIC FLOW MODELING TO RECONSTRUCT A VOLCANIC EDIFICE IN PAIPA (BOYACÁ-COLOMBIA). date: 2004-01-01 words: 2411 flesch: 58 summary: Pyroclastic flow deposits were mapped and detailed to reconstruct a volcanic edifice generated during the resurgence. DISCUSSION AND CONCLUSIONS It was found that the altitude of the volcanic build was 3100 m.o.s.l., and the friction coefficient a0 is 0.18, value coherent with observations made in other sites with pyroclastic flow deposits generated by dome collapse (figures 7´s and 8). keywords: alto; colombia; deposits; figure; flows; model; paipa; pyroclastic; sheridan; volcanic cache: esrj-21262.pdf plain text: esrj-21262.txt item: #55 of 261 id: esrj-21263 author: Piedrahita, Carlos; Piedrahita, Carlos; Salinas, Trino; Altamar, Hernando; Pachano, Karen title: SLOWNESS SURFACE CALCULATION FOR DIFFERENT MEDIA USING THE SYMBOLIC MATHEMATICS LANGUAGE MAPLE® date: 2004-01-01 words: 1802 flesch: 58 summary: Key Words: Christoffel matrices, slowness vector, cubic symmetry, hexagonal symmetry, isotropic, symmetry, slowness surfaces, eigenvalues, eigenvectors RESUMEN Partiendo de la ecuación en diferentes medios, obtenemos los diferentes tipos de ondas que pueden existir en tales medios. Stiffness matrix for sandstone (Thomsen, 2000) CONCLUSIONS The theoretical study of anisotropic media is important for studying the effect of different type of media on wave propagation. keywords: dir_l; ∂ ∂ cache: esrj-21263.pdf plain text: esrj-21263.txt item: #56 of 261 id: esrj-27204 author: Ferreira de Oliveira, Emerson; Rangel, Caio César; Sullivan de Jesus Alves, Diego; Silva Limonta, Filipi; Carvalho, Adelino; A. Candeiro, Carlos Roberto title: Communication regarding the geology and vertebrate palaeontology of the Adamantina formation (Bauru group, Upper Cretaceous) in Campina Verde, Minas Gerais State, Brazil date: 2011-01-01 words: 2750 flesch: 43 summary: Von Huene (1934) recovered fragmentary fossil sauropod dinosaur remains while conducting palaeontological reconnaissance in Campina Verde in 1910; Barcelos (1984) recognised the deposits in which they were found as being Adamantina formation (Fernandes and Coimbra). GEOCIENCIAS 15-1 JULIO 2011.vp Communication regarding the geology and vertebrate palaeontology of the Adamantina formation (Bauru group, upper Cretaceous) in Campina Verde, Minas Gerais State, Brazil Emerson Ferreira de Oliveira, Caio César Rangel, Diego Sullivan de Jesus Alves, Filipi Silva Limonta, Adelino Carvalho, Carlos Roberto A. Candeiro Laboratório de Geologia da Universidade Federal de Uberlândia Campus Pontal, Ituiutaba-MG, Brasil. E-mail author: oliveira_geoscience@yahoo.com.br A B S T R A C T Several geological events occurred on the surface of the earth with the division of the megacontinent Gondwana, including volcanic activity involving extensive lava flows, thus locally and regionally altering the surface’s geology. keywords: adamantina; bauru; campina; candeiro; formation; fossil; group; triângulo; verde cache: esrj-27204.pdf plain text: esrj-27204.txt item: #57 of 261 id: esrj-27298 author: Brindha, K.; Elango, L. title: Hydrochemical characteristics of groundwater for domestic and irrigation purposes in Madhuranthakam, Tamil Nadu, India date: 2011-07-01 words: 3308 flesch: 54 summary: Comparison of groundwater samples with BIS and WHO standards. Figure 4 shows the plot of groundwater samples grouped on the above basis. keywords: area; groundwater; india; irrigation; purposes; quality; samples cache: esrj-27298.pdf plain text: esrj-27298.txt item: #58 of 261 id: esrj-27300 author: Carvajal, Eduar; Montes, Luis; Almanza, Ovidio A. title: Quaternary dating by electron spin resonance (ESR) applied to human tooth enamel date: 2011-07-01 words: 3565 flesch: 59 summary: (1) Quaternary dating by electron spin resonance (ESR) applied to human tooth enamel 117 The aim is to determine the accumulated dose (DA) to which a sample has been exposed whilst being buried; the exposure time is then deter- mined by comparing D A to the average dose rate over such period: T= DA (D) The results regarding either physical or geological phenomena may not be chronologically equal, hence the importance of having techniques like ESR which can directly Quaternary dating by electron spin resonance (ESR) applied to human tooth enamel 119 and absolutely determine the age of individuals of interest. keywords: age; dating; dose; electron; enamel; esr; radiation; resonance; sample; spin; tooth cache: esrj-27300.pdf plain text: esrj-27300.txt item: #59 of 261 id: esrj-27713 author: K., Brindha; L., Elango title: Hydrochemical characteristics of groundwater for domestic and irrigation purposes in Madhuranthakam, Tamil Nadu, India date: 2011-07-01 words: 3311 flesch: 54 summary: Comparison of groundwater samples with BIS and WHO standards. Figure 4 shows the plot of groundwater samples grouped on the above basis. keywords: area; groundwater; india; irrigation; purposes; quality; samples cache: esrj-27713.pdf plain text: esrj-27713.txt item: #60 of 261 id: esrj-27714 author: Peña Q, Andrés J; Jaramillo R., Álvaro; Paternina Q., María J title: Detecting low frequency cycles in rainfall series from Colombian coffee-growing area by using descriptive methods date: 2011-07-01 words: 2406 flesch: 57 summary: The purpose of this paper was therefore to assess rainfall time series at five locations having an annual dataset going back more than 46 years in the Colombian coffee-growing area (a rain-fed crop system) to detect other cycles, apart from ENSO, which could be used as predictable patterns for annual rainfall forecasting. Moving averages for annual rainfall time series. keywords: cycles; figure; rainfall; series; time; year cache: esrj-27714.pdf plain text: esrj-27714.txt item: #61 of 261 id: esrj-27715 author: Carvajal, Eduar; Montes, Luis; Almanza, Ovidio A. title: Quaternary dating by electron spin resonance (ESR) applied to human tooth enamel date: 2011-07-01 words: 3571 flesch: 59 summary: (1) Quaternary dating by electron spin resonance (ESR) applied to human tooth enamel 117 The aim is to determine the accumulated dose (DA) to which a sample has been exposed whilst being buried; the exposure time is then deter- mined by comparing D A to the average dose rate over such period: T= DA (D) The results regarding either physical or geological phenomena may not be chronologically equal, hence the importance of having techniques like ESR which can directly Quaternary dating by electron spin resonance (ESR) applied to human tooth enamel 119 and absolutely determine the age of individuals of interest. keywords: age; dating; dose; electron; enamel; esr; radiation; resonance; sample; spin; tooth cache: esrj-27715.pdf plain text: esrj-27715.txt item: #62 of 261 id: esrj-31201 author: Díaz, Ramiro L. title: Una solución al problema inverso en geomagnetismo date: 1992-01-01 words: 1605 flesch: 79 summary: El modelo propuesto por Campbell & Hines (1981 ) , permite calcular la anomalía magnética de la estructura bidimensional sobre un perfil determinado conociendo la posición y geometría de la fuente magnética. Si se tienen n muestras de campo magnético total y se desea encontrar la profundidad de la interfase magnética bajo cada punto de muestreo, se debe pensar en un sistema de n ecuaciones con n incógnitas , lo cual keywords: que cache: esrj-31201.pdf plain text: esrj-31201.txt item: #63 of 261 id: esrj-31212 author: Montes Vides, Luis Alfredo title: Fractales y series de datos geofísicos date: 1993-01-01 words: 2390 flesch: 65 summary: 2. FUNDAMENTOS TEORICOS La definici6n formal del concepto de fractal fue planteada por el creador de la Geometrfa fractal, Benoit Mandelbrot, en los siguientes terminos: Un fractal es un conjunto para el cual la dimensi6n Hausdorf-Besicovith estrictamente 10 Montes: o = 10g(N) / log(r) A diferencia de la dimensi6n Euclidiana, la dimensi6n fractal es estrictamente no entera, Bajo magnificaci6n, un segmento de la figura principal luce parecida perc no identica a la primera. keywords: datos; del; dimensi6n; escala; fractal; hurst; los; para; que; una cache: esrj-31212.pdf plain text: esrj-31212.txt item: #64 of 261 id: esrj-31215 author: Briseño G., Luis A.; León, Robinson title: Los potenciales espontáneos: aspectos básicos y sus aplicaciones date: 1993-01-01 words: 1624 flesch: 55 summary: AI realizar las medidas se observa su comporlamiento con el tiempo y con las condiciones de su medida (calidad y tipo de equipos, condiciones del subsuelo y metodologia de adquisici6n de datos). d) Control temporal: para asegurar la estabilidad y calidad de las medidas, se hicieron en cada ocasi6n medidas multiples en el tiempo, que generaron series de largos perfodos, para observaciones de mas de 30 minutos. keywords: con; del; electrodos; las; los; que; sobre cache: esrj-31215.pdf plain text: esrj-31215.txt item: #65 of 261 id: esrj-31283 author: Briceno Guarupe, Luis Alberto title: Maestría en geofísica, una nueva opción en las geociencias date: 2000-01-01 words: 878 flesch: 34 summary: La puesta en marcha de la Maestria en Geofisica ha contado en esta oportunidad con la activa colaboraci6n directa 0 indirecta de personas e instituciones, ajenas a la Universidad, que han entendido 10 positivo del esfuerzo y que estan dispuestos a seguir trabajando para que este posgrado sea cada vez rnejor y sea una opci6n concreta, para quienes quieran formarse a nivel avanzado e investigar en esta area de la Geociencias. Las Geociencias en Colombia, siguiendo esta hip6tesis, han tenido un desarrollo de ires y venires. keywords: con; geociencias; geofisica; las; que cache: esrj-31283.pdf plain text: esrj-31283.txt item: #66 of 261 id: esrj-31287 author: Geofísica, Colombiana title: Nota editorial date: 2001-01-01 words: 478 flesch: 27 summary: Nuevamente registramos la continua participacion en la construcci6n de conocimiento de Instituciones como Ingeominas, Universidad del Quindio, Universidad Aut6noma de Mexico, Universidad del Valle, Universidad Distrital «Francisco Jose de Caldas» y Universidad Nacional de Colombia a traves de sus distintos prograrnas y sedes. Ese compromiso manifiesto de las nuevas generaciones se evidencia cuando en esta edici6n se plasman los trabajos de dos egresados del programa de Magister en Geoffsica de la Universidad Nacional de Colombia. keywords: universidad cache: esrj-31287.pdf plain text: esrj-31287.txt item: #67 of 261 id: esrj-31395 author: Geofísica, Colombiana title: Contenido date: 2002-01-01 words: 296 flesch: 8 summary: modelamiento por elementos finitos ROBINSON QUINTANA, SANDRA CESPEDES, ALFREDO GHISAYS, GABRIEL PEREZ y LUIS MONTES VIDES 5 Amenaza sismica por metoda determlntsta en el trianqulo de fallas Valera-Bocono-Oca en el occidente de Venezuela 9 RAYMI A. CASTILLA, FRANK A. AUDERMARD M. Y JOSE ANTONIO RODRiGUEZ Cambios temporales del valor de b: Lposibles correlaciones con la actividad hidrotermal del volcan Tungurahua? C. INDIRA MOLINA P., MARIO C. RUIZ 17 Monitoreo de emisiones de gas radon vinculado a la actividad microsismica en la zona de Sampacho, Cordoba, Argentina VIRGINIA GROSSO, ROMINA DAGA, GUILLERMO SAGRIPANTI Y DIEGO VILLALBA 2A Dispersion sismica por presencia de capas someras de alta velocidad: modelamiento con diferencias finitas 2S SANDRA CESPEDES, ROBINSON QUINTANA, ALFREDO GHISAYS, GABRIEL PEREZ Y LUIS MONTES AnalisiS espacial V temporal de Q-coda en el Piedemonte L1anero (Colombia) JUAN P. DURAN, CARLOS A. VARGAS Y LUIS A. BRICENO 33 Determinacion de mecanismos focales para temblores pequeiios 0 keywords: del cache: esrj-31395.pdf plain text: esrj-31395.txt item: #68 of 261 id: esrj-31410 author: Montes Vides, Luis Alfredo title: Nota editorial date: 2003-01-01 words: 454 flesch: 23 summary: Henos un afio despues, nuevamente aqui, con la publicacion del septimo numero de la revista Geofisica Colombiana, en la cual, con gran teson y mediante el esfuerzo encomiable de investiga- dores latinoamericanos de las ciencias de la tierra, presentamos a la comunidad cientifica los resul- tados de investigaciones en los campos de la geofisica. Invitamos a nuevos iniciados en esta ciencia, para que se acerquen a la luz del saber y el cono- cimiento cienrifico, proyectando su interes al tenor de la geofisica, ciencia que, por su naturaleza aplicada, reconforta al entre gar sus frutos, y por su fundamentacion teorica henche de curiosidad la mente de inquietos jovenes, Finalmente, extendemos la invitacion a toda la comunidad cientifica a participar en el Primer Congreso Latinoamericano de Sismologia que va a realizarse en la ciudad de Armenia, tanto con la presentacion de sus alcances en investigaciones como con su grata presencia en esta acogedora ciudad; para ella incluimos en este numero la informacion pertinente de este acontecimiento. keywords: los; que cache: esrj-31410.pdf plain text: esrj-31410.txt item: #69 of 261 id: esrj-31427 author: Castillo López, Luis Antonio title: True amplitude migration in constant gradient velocity media date: 2003-01-01 words: 1566 flesch: 50 summary: (1998) 72 Seismogram Distance o 0 5 (Km) I 1.5 2 I -i------=+=~~~_rT'-i-r-,....,...,~.,....,..-,--L----___+ E 0.5 -I------+-++-I-++-;.+:~~F.l=m!-'l-+-----____+ f.== O-l------J-LLLLLLLLLj...LJLULU--'--'--'--,------t Ray trajectories in constant gradient velocity media with commom shot configuration o r-~-----''-'-T'T'rr-rT'CrroCT>--rT..--.rrr~~~---' vO=2kml 0.2 I ;S 0.4 c. OJo 0.6 0.8L--~-~~~~-~-~-~-~-~----J o 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 Offset (km) Figure 2. The seismic model consists of by a curved reflector bellow an inho- mogeneous domo with constant gradient velocity medium, where the near surface velocity is 2.0 kmls (varying with the depth), and its gradient is 1.25/s. The shot position is 0.4 km on the left, with 0.5 km and 1.45 km for the near and far offset, respectively. keywords: amplitude; depth; gradient; migration; ray; stack; velocity cache: esrj-31427.pdf plain text: esrj-31427.txt item: #70 of 261 id: esrj-33791 author: Yousefirad, Mostafa title: Using conodont elements to distinguish Permian-Triassic boundary disconformity near Haftad Gholleh, central Iran date: 2013-01-01 words: 2240 flesch: 42 summary: Pachycladina oblique (Staesch), posterior view, X90, early Triassic (early Triassic) - 1 Sweetognathus whitei (Rhodes), lateral view, X80, middle Permian (Guadalupian) - 2 Hindeodella nevadensis (Muller), lateral view, X80, early Triassic (early Triassic) - 3 Hindeodus minutes (Ellison), lateral view, X80, upper Permian - 4 Hindeodella multihamata (Huckriede), lateral view, X95, middle Triassic (Anisian) - 5 Chirognathus sp., lateral view, X80, early Triassic (Scythian) - 6 Neostreptognathodus pequopensis (Behnken), outer view, X80, upper Permian - 7 Ligonodina triassica (Muller), lateral view, X80, early Triassic (early Triassic) - 8 Enantiognathus bitortus (Bender), outer view, X120, early Triassic (early Triassic) - 9 - 10 Hindeodella triassica (Muller), lateral view, X80, middle Permian - lower Triassic - 11 Hindeodus excavatus (Behnken), lateral view, X150, middle Permian (Guadalupian) - 12 Streptognathus barskovi (Kozur), lateral view, X80, middle-upper Per- mian - 13 Xaniognathus sp., lateral view, X80, lower Triassic - 14 Prioniodella prioniodellides (Tatge), lateral view, X120, middle Triassic (Anisian) - 15 Lonchodina nevadensis (Muller), lateral view, X110, early Triassic (early Triassic) - 16 Merrillina divergens (Bender & Stopple), lateral view, X80, (Guada- lupian) - 17 Parachirognathus geiseri (Clarck), lateral view, X95, (early Triassic - Anisian) - 18 Ellisonia triassica (Muller), lateral view, X80, early Triassic (early Trias- sic). Two assemblage zo- nes and one acrozone for Permian deposits and two assemblage zones for Triassic deposits were identified based on the emergence, decline and ex- panding stratigraphic accumulation index for conodonts having known elements. keywords: area; biozone; boundary; conodont; hindeodella; iran; permian; triassic; view cache: esrj-33791.pdf plain text: esrj-33791.txt item: #71 of 261 id: esrj-33850 author: Ersoy, Hakan; Kanik, Derya title: Multicriteria decision-making analysis based methodology for predicting carbonate rocks' uniaxial compressive strength date: 2012-01-01 words: 5583 flesch: 25 summary: Thus, in the study, ten groups of carbonate rock samples were collected in the Southern Zone of the eastern Pontides (NE Turkey) to establish some relationships between UCS and index properties In the study the index and strength properties of the rocks were de- termined in accordance with ISRM (1981) Geochemistry and petrogenesis of the eastern Pontide volcanic rocks, Northeast Turkey Chemie der Erde, 57: 157–187 Babacan, A E , Ersoy, H , Gelisli, K (2009) Determination of physical and mechanic properties of rocks with direct and indirect methods: A case study on the beige limestones in the Eastern Pontides, Proceed- ings of the 21st International Mining Congress and Exhibition of Turkey, Antalya, 123-130 Bieniawski, Z T (1974) Estimating the strength of rock materials Journal of the South African Institute Mining Metallurgy, 74: 312-320 Cargill, J S , Shakoor, A (1990) Evaluation of empirical methods for measuring the uniaxial compressive strength International Journal of Rock Mechanic and Mining Science, 27: 495-503 Chang, C , Mark, D , Zoback, A , Abbas, K B (2006) Empirical relations between rock strength and physical properties in sedimentary rocks Journal of Petroleum Science and Engineering, 51: 223-237 Chau, K T , Wong, R H C (1996) keywords: analysis; carbonate; index; limestone; porosity; properties; regression; rock; samples; strength; travertine; ucs; uniaxial cache: esrj-33850.pdf plain text: esrj-33850.txt item: #72 of 261 id: esrj-34266 author: Ersoy, Arzu Firat; Gültekin, Fatma title: DRASTIC-based methodology for assessing groundwater vulnerability in the Gümüşhacıköy and Merzifon basin (Amasya, Turkey) date: 2013-01-01 words: 4694 flesch: 58 summary: The study area was divided into three zones according to groundwater vulnerability assessment results: low (risk index <100); middle (risk index 100–140) and high groundwater vulnerability risk (risk index >140). Vol. 17, No. 1 (June, 2013): 33 - 40 DRASTIC-based methodology for assessing groundwater vulnerability in the Gümüşhacıköy and Merzifon basin (Amasya, Turkey) keywords: aquifer; area; basin; drastic; ersoy; figure; groundwater; gümüşhacıköy; map; media; merzifon; study; vulnerability cache: esrj-34266.pdf plain text: esrj-34266.txt item: #73 of 261 id: esrj-34287 author: Corchete, V title: A methodology for the analysis of the Rayleigh-wave ellipticity date: 2013-07-01 words: 5060 flesch: 57 summary: Shear wave velocity structure of the Sinai Peninsula from Rayleigh wave analysis. Some new theoretical considerations about the ellipticity of Rayleigh waves in the light of site-effect studies in Israel and Mexico. keywords: analysis; earth; ellipticity; figure; inversion; model; rayleigh; velocity; wave; wave ellipticity cache: esrj-34287.pdf plain text: esrj-34287.txt item: #74 of 261 id: esrj-34299 author: Olu-Owolabi, Bamidele I.; Agunbiade, Foluso O.; Adebowale, Kayode O. title: Metal speciation in sediments from crude oil prospecting in the coastal area of Ondo State, Nigeria date: 2013-01-01 words: 7016 flesch: 56 summary: The use of metal species in now being adopted (Ianni et al., 2000; Korfali and Davies, 2004). 15.6±1.1 4.49±0.3 4.24±0.4 Table 1: Total concentration of metal species in sediment from the Ondo coastal area Figure 1. keywords: area; carbonate; coastal; exchangeable; figure; fraction; metal; metal species; oil; organic; sediments; site; species cache: esrj-34299.pdf plain text: esrj-34299.txt item: #75 of 261 id: esrj-34799 author: Ogala, Jude E.; Akaegbobi, Mike I. title: Using aromatic biological markers as a tool for assessing thermal maturity of source rocks in the Campano-Maastrichtian Mamu Formation, southeastern Nigeria date: 2014-01-01 words: 7976 flesch: 51 summary: Email: izumike20022002@yahoo.com PETROLEUM GEOLOGY Record Manuscript received: 06/11/2012 Accepted for publication: 29/04/2014 52 Jude E. Ogala & Mike I. Akaegbobi INTRODUCTION Aromatic biomarkers and their structural isomers have been found useful for the maturity assessment of oils, source rocks and coals (Radke et al., 1982a; Radke and Welte, 1983; Alexander et al., 1985; Radke et al., 1986; Garrigues et al., 1988; Strachan et al., 1988; Akaegbobi et al., 2000; Akinlua et al., 2007; Sonibare et al., 2008). The methylphenanthrene index (MPI-1) is one of the most widely used maturity parameters based on aromatic hydrocarbons (Radke et al., 1982a, 1982b; Radke, 1988). keywords: anambra; basin; coal; et al; extracts; hydrocarbons; maturity; oils; petroleum; radke; rock; shale; source; table; volume cache: esrj-34799.pdf plain text: esrj-34799.txt item: #76 of 261 id: esrj-35101 author: Yousefirad, Mostafa; Shaabanian, Rahim; Khamooshi, Touran title: Late Permian brachiopoda fauna in north-western Iran date: 2013-01-01 words: 2655 flesch: 51 summary: Late Permian brachiopoda fauna in north-western Iran Based upon brachiopod fossils, (cephalopods and condonts), the age of the Jolfa Formation has been classified as being Late Dzhulfian in terms of Permian stages in the Tethyans region (Chen et al., 2005). keywords: abich; ali; bashi; brachiopods; formation; iran; late; permian; section; shell cache: esrj-35101.pdf plain text: esrj-35101.txt item: #77 of 261 id: esrj-35798 author: Senapathi, Venkatramanan title: A multivariate statistical approaches on physicochemical characteristics of ground water in and around Nagapattinam district, Cauvery deltaic region of Tamil Nadu, India date: 2013-07-01 words: 4879 flesch: 51 summary: The high salinity of ground water and the heavy reliance on ground water for irrigation necessitate the overall assessment of ground water quality for irrigation purposes. Results and Discussion Summary of ground water analysis The water quality analysis of different ground water samples were carried out to determine different physicochemical parameters such as for pH, EC, TDS, Ca, Mg, Na, K, HCO3, SO4, and Cl; and the results are presented in Table 1 and Figure 2. pH value of ground water samples between 7.4-8.2 and 7.2-7.8 during the monsoon and summer seasons, respectively. keywords: analysis; aquifer; factor; ground; ground water; journal; monsoon; quality; study; summer; water cache: esrj-35798.pdf plain text: esrj-35798.txt item: #78 of 261 id: esrj-36908 author: Odukoya, Sesan; Oresanya, O; Abimbola, A F title: Biogeochemical and engineering characteristics of soils and groundwater around a dumpsite date: 2013-01-01 words: 4335 flesch: 52 summary: Atterberg limits (%) Grain size distribution (%) Permeability (K) coefficient X 10-5 Rating LL PL PI Clay Silt Sand Gravel L1 0-1 9.17 18.69 28.13 52.92 0.28 18.6 Low 1-2 9.07 22.23 34.71 42.92 0.14 8.46 Low 2-3 5.68 33.27 20.99 12.28 56.03 22.05 22.93 0.00 2.61 Low 3-4 10.03 13.65 23.98 59.73 2.65 41.8 Low L2 0-1 17.99 30.39 15.08 15.31 56.57 20.70 22.74 0.00 2.61 Low 1-2 17.07 30.59 19.83 10.76 54.56 22.11 22.73 0.61 3.35 Low L3 0-1 33.33 44.29 23.36 20.93 26.57 33.40 30.68 9.36 9.09 Low 1-2 23.58 46.70 25.49 21.21 32.66 26.60 31.59 6.75 5.61 Low L4 0-1 11.71 37.16 22.98 14.18 44.11 32.55 23.24 0.00 7.84 Low 1-2 20.01 33.65 20.79 12.86 60.72 18.91 20.21 0.17 1.96 Low Biogeochemical and engineering characteristics of soils and groundwater around a dumpsite Table 2: Summary of physical-chemical analysis result of water samples Table 4: Summary of soil samples’ chemical and microanalysis parameters Table 3: Summary of phenol and microbiological parameters in water samples ND: not detected Major elements –Mg/l Trace elements –µg/l Parameter Range N=12 Mean USEPA (2009) Leachate pH 4.86-7.58 5.21 6.5-8.5 7.58 TDS 26-453 184.80 1000 3,580 Al 0.1-0.6 0.29 87 0.8 Ba Bdl-100 61.82 1000 520 Cu 4-28 16.93 1000 1,300 Ni Bdl-600 122.0 20 1,000 Zn 30-1100 449.60 5000 2,065 Sr 20-250 48 260 Ca 16-128 24.55 200 407.89 Fe Bdl-0.47 0.13 0.3 0.79 K 0.4-194 19.05 200.28 The concentration of trace elements and microorganisms was highest in soil samples and this may have been due to clay’s retention ability and its high sorption ability. keywords: attenuation; depth; dumpsite; elements; groundwater; leachate; m depth; natural; samples; soil; table; total; water cache: esrj-36908.pdf plain text: esrj-36908.txt item: #79 of 261 id: esrj-36910 author: Ozturk, Serkan title: A New Empirical Relation between Surface Wave Magnitude and Rupture Length for Turkey Earthquakes date: 2014-01-01 words: 12458 flesch: 54 summary: Parameters of earthquake fault were given as 80° 21A New Empirical Relation between Surface Wave Magnitude and Rupture Length for Turkey Earthquakes for dip and 0.37 m for mean displacement (Lekkas and Vassilakis, 1999; Aktar et al. 2000). 25A New Empirical Relation between Surface Wave Magnitude and Rupture Length for Turkey Earthquakes It is well known that the length of rupture at the surface is related with earthquake magnitude and many studies in literature relate magnitude to rupture length or some another earthquake source parameters for regions of different geographic or tectonic setting (e.g., Acharya, 1979; Wells and Coppersmith, 1994). keywords: data; dip; displacement; earthquake; epicenter; et al; fault; faulting; geological; length; magnitude; mean; nalbant; normal; north; regression; rocks; rupture; slip; turkey cache: esrj-36910.pdf plain text: esrj-36910.txt item: #80 of 261 id: esrj-37073 author: Tongal, Hakan title: Nonlinear forecasting of stream flows using a chaotic approach and artificial neural networks date: 2013-07-01 words: 6119 flesch: 53 summary: Artificial neural network model as a potential alternative for groundwater salinity forecasting. Discrete wavelet-Ann approach in time series flow forecasting-a case study of Brahmaputra river. keywords: correlation; dimension; ffnn; flow; forecasting; function; model; number; river; series; system; time; values cache: esrj-37073.pdf plain text: esrj-37073.txt item: #81 of 261 id: esrj-37612 author: Mori, H; Shimoyama, S; Soejima, K title: The geomorphic history of the Ainoura plain, Kyushu, Japan, based on excavation of the Monzen ruins date: 2012-07-01 words: 3944 flesch: 55 summary: This area lacks flatlands, but there are occasional wide river val- leys; the Ainoura plain in western Sasebo, in which monzen ruins are located, is one of these. Record manuscript received: 03/10/2011 Accepted for publications: 06/05/2012 Hirotsugu Mori, Shoichi Shimoyama and Kazuaki Soejima88 20 m 100 m 100 m 100 m 300 m 300 m 300 m 500 m 20 m Kitamatsuura Basalts Ainoura River Monzen Ruin Ainoura Plain 129°38’E 129°42’E 129°46’E 33°10’N 33°12’N Legend Reclaimed land Sand stone and Conglomerate Sand and Conglomerate Sand, mud, and tu� stone Basalts Fluvial Sediment Landslide Sediment Kitamatsuura Basalt Quaternary Rough counter line Remnants of landslides 1 km Figure 1. keywords: ainoura; ainoura plain; figure; japan; kyushu; layers; monzen; mud; nagasaki; plain; river; ruins; sand cache: esrj-37612.pdf plain text: esrj-37612.txt item: #82 of 261 id: esrj-37613 author: Akbulut, S; Nese, Z; Arasan, S title: Surfactant modified clays’ consistency limits and contact angles date: 2012-07-01 words: 4493 flesch: 57 summary: a) Contact angle image of natural clay (35o); b) Contact angle image of TMG (10%) modified clay (14o); c) Contact angle image of QEFA (15%) modified clay (54o) Figure 10. However, little research has indicat- ed that chemicals have increased CL or kaolinite clay liquid limit (Rao and Mathew, 1995; Sivapullaiah and Manju, 2005; Park et al., 2006; Arasan and Yetimoglu, 2008). keywords: angle; anionic; cationic; clay; consistency; contact; figure; limit; liquid; plasticity; surface; surfactant cache: esrj-37613.pdf plain text: esrj-37613.txt item: #83 of 261 id: esrj-37614 author: Öztürk, Serkan title: Statistical correlation between b-value and fractal dimension regarding Turkish epicentre distribution date: 2012-07-01 words: 5028 flesch: 59 summary: Since the uniform distribution of earthquakes decreases with an increase in the clustering of events, it is reasonable to assume that higher Dc values (≥2.2) and lower b- values (0.8≤) are the dominant structural feature in the study area and may have arisen due to clusters. many stations have been built in Turkey, especially after two destructive earthquakes in 1999, minimum earth- quake magnitude now being seen to be around 1.5 (average value may sometimes be higher than 3.25 which is not high value for Turkish earth- quakes). keywords: a.o; correlation; dimension; earthquakes; fault; fractal; regions; relationship; turkey; value; zone; öncel cache: esrj-37614.pdf plain text: esrj-37614.txt item: #84 of 261 id: esrj-37615 author: Dahrazma, B; Kharghani, M title: The impacts of alkaline mine drainage on Ba, Cr, Ni, Pb and Zn concentration in the water resources of the Takht coal mine, Iran date: 2012-07-01 words: 2890 flesch: 57 summary: Tunnel effluent and drainage of tailing washing were the main sources of pollution, containing heavy metals Ba, Cr, Ni, Pb and Zn. E-mail: behnaz_dahrazma@yahoo.com ABSTRACT The release of heavy metals into the environment represents one of the most important environmental effects involved in extracting coal; it needs to be studied more fully. keywords: alkaline; coal; concentration; downstream; metals; water cache: esrj-37615.pdf plain text: esrj-37615.txt item: #85 of 261 id: esrj-37616 author: Goudarzi, Ali; Riahi, M A title: Adaptive seismic ground roll attenuation using the double density dual tree discrete wavelet transform (DWT) method date: 2012-07-01 words: 4815 flesch: 59 summary: Wavelet transform is a simple and reliable tool for sig- nal and image processing and has overcome the limitations of the Fourier transform. The main point concerned the choice of transform (in the chain) to be applied before discrete wavelet transform. keywords: data; dddtdwt; domain; dwt; frequency; ground; method; noise; roll; selesnick; signal; transform; wavelet cache: esrj-37616.pdf plain text: esrj-37616.txt item: #86 of 261 id: esrj-37617 author: Ephraim, Bassey Edem title: Investigation of the geochemical signatures and conditions of formation of metacarbonate rocks occurring within the Mamfe embayment of south-eastern Nigeria date: 2012-07-01 words: 11124 flesch: 58 summary: Following Ikhane et al., (2009) the low Al 2O3 concentration measured in Nsofang rock is interpreted as being indicative of a low energy environment. Vol. 16, No. 2 (December, 2012): 39 - 56 Investigation of the geochemical signatures and conditions of formation of metacarbonate rocks occurring within the mamfe embayment of south-eastern Nigeria Bassey Edem Ephraim Department of Geology, University of Calabar, P. m. B. 1115 keywords: al2o3; cameroon; cao; concentration; data; dolomite; earth; eastern; elements; embayment; figure; geochemical; log; mamfe; metacarbonate; mgo; nigeria; nsofang; ppm; rock; sample; sedimentary; table; trace cache: esrj-37617.pdf plain text: esrj-37617.txt item: #87 of 261 id: esrj-37618 author: Okunlola, O; Idowu, O title: The geochemistry of claystone-shale deposits from the Maastritchian Patti formation, Southern Bida basin, Nigeria date: 2012-07-01 words: 7051 flesch: 62 summary: The other chemical impuri- ties in shale samples from the Patti formation were Fe 2O3 (3.75%) and TiO2 (1.74%). A discriminant function diagram for sandstone (taken from Bhatia, 1983) showing fields for shale samples from passive continental margins, oceanic island arcs, continental island arc and active continental margins. keywords: al2o3; basin; bida; claystone; claystone samples; element; formation; nigeria; patti; ratios; rocks; samples; shale; tio2 cache: esrj-37618.pdf plain text: esrj-37618.txt item: #88 of 261 id: esrj-37619 author: Ogala, Jude title: The geochemistry of lignite from the Neogene Ogwashi-Asaba Formation, Niger Delta Basin, southern Nigeria date: 2012-07-01 words: 9188 flesch: 67 summary: Trace elements indicated the following concentration range in parts per million (ppm): Be (2-5), Zr (4-63), Sr (5-22), y (13-68), Ba (9-89), V (4-216), Zn (17- 176), Ni (8-28), Co (5-13), Cr (2-31), Cu (1-22) and Ga (1-14). Several researchers have attempted to study the geochemical features of trace elements contained in coal to understand and evaluate trace elements’ mode of occurrence as well as their behaviour during combustion (Gluskoter et al., 1977; Swaine, 1990; Finkelman, 1994; meij, 1995; Spears and Zheng, 1999; Davidson, 2000; Vassilev et al., 2001). keywords: analysis; asaba; basin; coal; elements; factor; formation; fus; geology; icp; lignite; major; nigeria; ogwashi; samples; table; trace; trace elements cache: esrj-37619.pdf plain text: esrj-37619.txt item: #89 of 261 id: esrj-37620 author: Vargas, Carlos title: Letter from the Editor date: 2012-07-01 words: 721 flesch: 23 summary: This important meeting is leadership by the AGU and also sponsored by institutions like: Asociación Argentina de Geofísicos y Geodestas (AAGG), Asociación Latinoamericana de Geofísica Espacial (ALAGE), Asociación Latinoamericana de Paleomagnetismo y Geomagnetismo (LatinMag), Chi- lean Geological Society (CGS), Centro Regional de Sismología para América del Sur (CERESIS), Geochemical Society (GS), Mexican Association of Exploration Geophysicists (AMGE), Mexican Geological Society (SGM), Mexican Union for Quaternary Studies (UMEC), Mineralogical So- ciety (MS), Sociedade Brasileira de Geofísica (SBGf ), Society of Exploration Geophysicists (SEG) and Unión Geofísica Mexicana (UGM). Four pieces of geochemical work, one of them related to the effects of runoff from a coal mine in Iran and the other three related to the environmental characterisation of several Mesozoic and Palaeo- zoic formations in Nigeria and Cameroon, emphasise new geological knowledge emerging from Asia and Africa. keywords: events; society cache: esrj-37620.pdf plain text: esrj-37620.txt item: #90 of 261 id: esrj-37621 author: Vargas, Carlos title: Corrigendum date: 2012-07-01 words: 258 flesch: 44 summary: DATACION DE RESTOS HUMANOS PREHISPANICOS A TRA- VES DE ESMALTE DENTAL USANDO RESONANCIA PARAMAGNETICA ELECTRONICA (EPR) (2010). Asimismo, no corresponde al sitio arqueológi- co Aguazuque, sino que corresponde al sitio arqueológico Checua. keywords: earth cache: esrj-37621.pdf plain text: esrj-37621.txt item: #91 of 261 id: esrj-38712 author: Momeni, Ehsan; Nazir, Ramli; Jahed Armaghani, Danial; Maizir, Harnedi title: Application of Artificial Neural Network for Predicting Shaft and Tip Resistances of Concrete Piles date: 2015-01-01 words: 6253 flesch: 57 summary: There are numerous methods for assessing pile bearing capacity and its distribution. In another study, Lee and Lee (1995) employed ANN for estimation of pile bearing capacity. keywords: ann; artificial; bearing; bearing capacity; capacity; data; engineering; figure; model; network; neural; pda; pile; rmse; shaft; testing; tip cache: esrj-38712.pdf plain text: esrj-38712.txt item: #92 of 261 id: esrj-38760 author: Muñoz, Enrique; Tume, Pedro; Ortíz, Gabriel title: Uncertainty in rainfall input data in a conceptual water balance model: effects on outputs and implications for predictability date: 2014-01-01 words: 6198 flesch: 47 summary: Additionally, to quantify the propagation of rainfall uncertainty effects, Table 3 presents a summary of the average width of the uncertainty bands (in m3/s) for the different variations in the rainfall data. Actualmente disponer de modelos para simular el comportamiento hidrológico de una cuenca resulta indispensable, sin embargo, también es necesario conocer los límites de predictibilidad y de confiabilidad de las salidas de un modelo. keywords: bands; basin; calibration; data; figure; flows; model; outputs; parameters; period; rainfall; range; uncertainty; water cache: esrj-38760.pdf plain text: esrj-38760.txt item: #93 of 261 id: esrj-39966 author: Balambal, Usha; Mudgal, B. V. title: Climate variability and its impacts on runoff in the Kosasthaliyar sub-basin, India date: 2014-01-01 words: 3506 flesch: 55 summary: Both past and future impacts on runoff were mapped using field data and climate model data, i.e., data from RCM PRECIS using a horizontal resolution of 25 km X 25 km. These downscaled data are used to study runoff changes due to climate change for the Kosasthaliyar sub-basin in South India. keywords: basin; change; chennai; climate; data; future; model; rainfall; runoff; study; water cache: esrj-39966.pdf plain text: esrj-39966.txt item: #94 of 261 id: esrj-40335 author: Vargas J., Carlos A. title: Letter from the editor date: 2013-01-01 words: 742 flesch: 45 summary: Coming from Turkey, other study shows the preparation of vulnerability maps to prevent contami- nation in aquifers. Based on seven data profiles, study indicates the centre of the Island had low resistivity values, while those values increase laterally outside the island. keywords: area; iran; journal; study cache: esrj-40335.pdf plain text: esrj-40335.txt item: #95 of 261 id: esrj-40664 author: Arian, Mehran title: Seismotectonic-Geologic Hazards Zoning of Iran date: 2015-01-01 words: 5391 flesch: 58 summary: East Iran province The dominant structural trend in East Iran province (Fig. 2) is N-S. From tectonics point of view, this province contains a collision belt brought about by eastward subduction of East-Central Iran miniplate (Fig. 1) beneath Central blocks of Afghanistan. East Iran province is hit by moderate to high earthquakes with middle to high (on fault terminations) frequency, medium repeat time and down to 15Km focal depth. keywords: alborz; arian; basin; earthquakes; east; faulting; fig; hazards; iran; journal; province; tectonics cache: esrj-40664.pdf plain text: esrj-40664.txt item: #96 of 261 id: esrj-40995 author: Kahraman, Bayram title: Determining Optimal Polypropylene Fiber Dosages In Sprayed Concrete For Mining And Civil Engineering Applications date: 2015-01-01 words: 2309 flesch: 63 summary: Experimental Work The EFNARC panel test was used to compare the toughness of shotcrete panels with different reinforcement and amount of reinforcement. PF, SM and PF+SM concrete mixture estimation costs, furthermore, were compared in terms of unit load and energy absorption cost. keywords: absorption; energy; load; shotcrete cache: esrj-40995.pdf plain text: esrj-40995.txt item: #97 of 261 id: esrj-41083 author: Ochoa, Luis H.; Niño, Luis F.; Vargas, Carlos A. title: Severity Classification of a Seismic Event based on the Magnitude-Distance Ratio Using Only One Seismological Station date: 2014-07-01 words: 6051 flesch: 60 summary: [Complexity C=0.1] Predicted Real A B A 9 32 B 0 98 [Complexity C=1] Predicted Real A B A 20 12 B 4 94 [Complexity C=10] Predicted Real A B keywords: algorithm; america; b b; bulletin; data; distance; events; magnitude; results; signal; society; station; wave cache: esrj-41083.pdf plain text: esrj-41083.txt item: #98 of 261 id: esrj-41810 author: Buyuksarac, Aydın; Over, Semir; Genes, Mehmet Cemal; Bikce, Murat; Kacin, Selcuk; Bektas, Ozcan title: Estimating shear wave velocity using acceleration data in Antakya (Turkey) date: 2014-07-01 words: 5064 flesch: 52 summary: Thus, the response spectral values S (Spv, Spa and Sd) (Eq. 1) for earthquake ground motion should be considered to be a function expressed in the following form (Clough and Penzien, 1993; Tehranizadeh and Hamedi, 2002) S = S(SM, ED, FD, GC, M, SC, ξ ,T) Consequently, the effect of the type of soil on earthquake ground shaking is an important component for a seismic hazard analysis. keywords: acceleration; amplification; antakya; clay; data; earthquake; ground; response; site; soil; station; velocity cache: esrj-41810.pdf plain text: esrj-41810.txt item: #99 of 261 id: esrj-41988 author: Mokhtari, Maryam; Heshmati R., Ali Akbar; Shariatmadari, Nader title: Compression ratio of municipal solid waste simulation using artificial neural network and adaptive neurofuzzy system date: 2014-07-01 words: 5467 flesch: 50 summary: Key words: Municipal solid waste, Compression ratio, Physical properties, ANFIS model, ANN model, Statistical criteria The compression ratio of Municipal Solid Waste (MSW) is an essential parameter for evaluation of waste settlement. J. Vol. 18, No. 2 (December, 2014): 165 - 171 ABSTRACT RESUMEN Record Manuscript received: 10/02/2014 Accepted for publication: 29/07/2014 GEOTECHNICS Compression ratio of municipal solid waste simulation using artificial neural network and adaptive neurofuzzy system Maryam Mokhtari¹*, Ali Akbar Heshmati R¹, Nader Shariatmadari¹ ¹ School of Civil Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran 16846-13114, Iran, Tel: +98 21 77240565 ¹ School of Civil Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran 16846-13114, Iran, Tel: +98 21 77240565, corresponding author: mokhtari_ma@iust.ac.ir ¹ School of Civil Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran 16846-13114, Iran, Tel: +98 21 77240565 ISSN 1794-6190 e-ISSN 2339-3459 http://dx.doi.org/10.15446/esrj.v18n2.41988 http://dx.doi.org/10.15446/esrj.v18n2.41988 166 Ali Akbar Heshmati R, Maryam Mok htari, Nader Shariatmadari Introduction Settling municipal solid waste (MSW) is a significant issue considered in geotechnical design of a landfill. keywords: anfis; ann; compression; data; fuzzy; input; model; municipal; network; neural; ratio; testing; training; waste cache: esrj-41988.pdf plain text: esrj-41988.txt item: #100 of 261 id: esrj-42492 author: Bensoula, Mohamed; Missoum, Hanifi; Bendani, Karim title: Critical undrained shear strength of sand-silt mixtures under monotonic loading date: 2014-07-01 words: 6447 flesch: 60 summary: The understanding of soil liquefaction is continuously being revised due to new field and laboratory observations. “Initiation of soil liquefaction under static loading conditions.” Journal of Geotechnical Engineering, 114(4), 412-430.dx.doi.org/10.1061/(ASCE)0733- 9410(1988)114:4(412) Ladd, R. S. (1974). keywords: content; figure; fines; liquefaction; mixtures; ratio; sand; shear; silt; soil; strength; stress; void cache: esrj-42492.pdf plain text: esrj-42492.txt item: #101 of 261 id: esrj-43199 author: Samadianfard, Saeed; Kazemi, Honeyeh; Kisi, Ozgur; Liu, Wen-Cheng title: Water temperature prediction in a subtropical subalpine lake using soft computing techniques date: 2016-04-01 words: 7607 flesch: 52 summary: Also, some attempts have been made to relate lake water temperature to meteorological parameters such as air temperature. A review of statistical water temperature models. keywords: anfis; ann; data; figure; gep; lake; model; network; neural; parameters; prediction; results; surface; table; temperature; water; water temperature cache: esrj-43199.pdf plain text: esrj-43199.txt item: #102 of 261 id: esrj-43841 author: Seutloali, Khoboso Elizabeth; Reinhard Beckedahl, Heinrich title: A Review Of Road-Related Soil Erosion: An Assessment Of Causes, Evaluation Techniques And Available Control Measures date: 2015-01-01 words: 7078 flesch: 54 summary: Hence, soil erosion control through the establishment of a dense vegetation cover is a priority for restoration of roadside slopes (garcía-Palacios et al., 2010). Three hydro- seeding revegetation techniques for soil erosion control on anthropic steep slopes, Land degradation & development. keywords: control; cover; erosion; erosion control; et al; loss; processes; rainfall; road; runoff; sediment; slopes; soil; soil erosion; surface; vegetation; water cache: esrj-43841.pdf plain text: esrj-43841.txt item: #103 of 261 id: esrj-44429 author: Mariño Martinez, Jorge Eliecer; Amaya, Erika title: Lithofacies cyclicity determination in the guaduas formation (Colombia) using Markov chains date: 2016-07-01 words: 5063 flesch: 46 summary: Through the statistical analyses of facies transitions it was found that tidal facies are prevalent in the Socota section, more specifically in the upper part. Statistical embedded Markov Chain processes were used to analyze facies transitions and to determine the stacking pattern of the lithofacies of the Guaduas formation. keywords: amaya; chain; coal; fluvial; formation; guaduas; lithofacies; markov; section; stratigraphic; transition cache: esrj-44429.pdf plain text: esrj-44429.txt item: #104 of 261 id: esrj-44491 author: Zare, Maryam title: Spatial distribution of sediment pollution in the Khajeh Kory River using Kriging and GIS date: 2014-07-01 words: 5623 flesch: 54 summary: The conducted studies revealed that geochemical characteristics and river contamination differ at various points. Pollution can concentrate in fine-grain texture, and the data from this texture indicates area contamination. keywords: area; contamination; data; enrichment; khajeh; kory; kriging; map; method; pollution; river; sediments cache: esrj-44491.pdf plain text: esrj-44491.txt item: #105 of 261 id: esrj-44642 author: Liang, Wang; Zhengfu, Bian; Hongquan, Chen title: Land ecological security assessment for Yancheng city based on catastrophe theory date: 2014-07-01 words: 4877 flesch: 46 summary: Using the catastrophe theory and pressure-state- response (PSR) model, the purpose of the research was to judge the degree of land ecological security in Yancheng city from 2002 to 2011 and determine the requirements to ensure the sustainable development of this region. The objective is to demonstrate the method and evaluate the degree of land ecological security in Yancheng city from 2002 to 2011 as a tool to determine the requirements to ensure sustainable development of this region. keywords: assessment; catastrophe; city; control; eco; indices; land; level; model; person; security; state; theory; yancheng cache: esrj-44642.pdf plain text: esrj-44642.txt item: #106 of 261 id: esrj-45175 author: Golekar, Rushikesh Baburao; Baride, Mukund Vasantrao; Patil, Sanjaykumar Narayan; Adil, S H title: Altimetric and hypsometric analysis for soil and water conservation: A case study of Anjani and Jhiri river basin, Northern Maharashtra, India date: 2015-01-01 words: 5164 flesch: 55 summary: This type of structure can be constructed in the lower part of the Anjani and Jhiri river catchment, mainly at Ahire Bk, Pashtane Bk and Tarde Bk villages in Anjani river basin and at Vaktuki, Anjan vihire and Jhurkheda village in Jhiri river basin. The longitudinal profile reveals the presence of nick points at three locations in Anjani river and two locations in Jhiri river. keywords: anjani; area; basin; hypsometric; india; jhiri; jhiri river; longitudinal; maharashtra; plateau; river; river basin; stage; study; water cache: esrj-45175.pdf plain text: esrj-45175.txt item: #107 of 261 id: esrj-45202 author: Aiping, Zhang; Du, Yangsong; Cao, Yi; Pang, Zhenshan; Luo, Gan; Xu, Kangkang title: Petrology and mineralogy of the Fenghuanshan granodiorite, Anhui Province, China: implications for petrogenesis and metallogenesis implication date: 2015-01-01 words: 5740 flesch: 49 summary: As such, this suggests the magma that formed the intrusion underwent typical assimilation and fractional crystallization (AFC) processes (Liu et al., 2002; Mao et al., 2004; Wang et al., 2008; Qu et al., 2010; Li et al., 2014). School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China 2. Development and Research Center of China Geological Survey, Beijing 100037, China Correspondence should be addressed to Aiping Zhang, e-mail: zhangaiping_cugb@163.com EARTH SCIENCES RESEARCH JOURNAL Earth Sci. Res. J. Vol. 19, No. 1 (June, 2015): 31 - 37 ABSTRACT RESUMEN Key words: Fenghuangshan granodiorite, mineralogy, geothermometry–barometry, emplacement depth, denudation, Tongling, Anhui Province, China. keywords: amphibole; area; china; copper; deposit; et al; fenghuangshan; granodiorite; intrusion; magma; ore; plagioclase cache: esrj-45202.pdf plain text: esrj-45202.txt item: #108 of 261 id: esrj-47000 author: Whitehead, Neil Evan; Ulusoy, Ü. title: Origin of Earthquake Light Associated with Earthquakes in Christchurch, New Zealand, 2010-2011 date: 2015-07-01 words: 7845 flesch: 65 summary: ABSTRACT RESUMEN Keywords: : Earthquake light, earthquake precursors. Earthquake light above Mt Wilson Observatory. keywords: associated; blue; christchurch; city; earthquake; eql; figure; flashes; freund; green; ground; hills; light; lightning; local; new; white; zealand cache: esrj-47000.pdf plain text: esrj-47000.txt item: #109 of 261 id: esrj-47432 author: Vargas J., Carlos A. title: Letter from editor date: 2014-01-01 words: 512 flesch: 53 summary: This 2014 has been full of challenges moving us to find the best ways to present new manuscripts. J. Vol. 18, No. 1 (June, 2014): 74 Letter from editor Welcome to Earth Sciences Research Journal, Volume 18, Number 1. keywords: sciences; study cache: esrj-47432.pdf plain text: esrj-47432.txt item: #110 of 261 id: esrj-47433 author: Beltrán Rivas, Julián Daniel; Vargas Jiménez, Carlos Alberto title: Hydrocarbon Production Scenarios in Colombia. Review of Field Sizes, Hydrocarbon Reserves and Expectations of Conventional and Unconventional Resources. date: 2014-01-01 words: 5914 flesch: 53 summary: J. Vol. 18, No. 1 (June, 2014): 77 - 83 ABSTRACT RESUMEN Key words: ultimately recoverable resources, oil production, gas production, production peak, oil reserves, gas reserves, decline rates. Regarding gas production, 88% of the gas delivered to the pipeline originates in large fields (Fig. 5), which indicates the strong production control exerted by large fields in Colombia. 0   100.000   200.000   300.000   400.000   19 90   19 95   20 00   20 05   20 10   M bb l   Daily  oil  produc/on  (1990  -­‐  2012)     Producción  Total   Super  Grande   Gigantes   79Hydrocarbon Production Scenarios in Colombia. keywords: colombia; decline; fields; gas; hydrocarbon; oil; production; reserves; resources; scenarios cache: esrj-47433.pdf plain text: esrj-47433.txt item: #111 of 261 id: esrj-47677 author: Erkoyun, Hülya; Kadir, Selahattin title: Occurrence of Cr-bearing beryl in stream sediment from Eskişehir, NW Turkey date: 2016-07-01 words: 5531 flesch: 53 summary: Wet chemical analysis of Eskişehir beryl yielded 61.28% SiO2, 15.13% Al2O3, 12.34% BeO, 0.18% Cr2O3, 1.49% MgO, 1.69% Na2O, 0.98% Fe2O3, and 0.008% V2O3, resulting in the formula (Al1.75Cr0.01Mg0.22Fe0.08)(Be2.90Si6.00)(Na0.32)O18. Additionally, Eskişehir beryl can be classified as chromium-containing beryl according to the Gemological Institute of America (Sinkankas, 1994). keywords: area; beryl; chromium; crystals; deposits; emerald; eskişehir; ppm; rocks; schist; sediment; stream; study; units cache: esrj-47677.pdf plain text: esrj-47677.txt item: #112 of 261 id: esrj-49405 author: Agbazo, Médard Noukpo; Koto N'Gobi, Gabin; Kounouhewa, Basile; Alamou, Eric; Afouda, Abel; Akpo, Aristide title: Estimation of IDF Curves of Extreme Rainfall by Simple Scaling in Northern Oueme Valley, Benin Republic (West Africa) date: 2016-01-01 words: 6228 flesch: 55 summary: Bendjoudi, et al. (1997) used a multifractal point of view on rainfall IDF curves. Recently, Özger, et al. (2010) focused on the scaling properties of rainfall at 43 rain gauge stations in Texas; Ceresseti (2011) used a multifractal point of view on rainfall IDF curves in France to characterize IDF curves; Ghanmi (2014) developed regional relationship for ungauged locations based on the scaling theory in Tunisia. keywords: benin; curves; data; duration; et al; frequency; idf; intensity; min; model; properties; rainfall; scale; scaling; simple; stations; time cache: esrj-49405.pdf plain text: esrj-49405.txt item: #113 of 261 id: esrj-49560 author: Sanjurjo-Sánchez, Jorge; Alves, Carlos; Vidal Romani, Juan Ramón title: Assessing the weathering of granitic stones on historical urban buildings by geochemical indices date: 2016-07-01 words: 7798 flesch: 59 summary: Moreover, some aspects must be taken into account referring rock weathering in buildings. Bulk changes produced by weathering in granitic rocks have been studied by several methods, including chemical weathering indices. keywords: alves; buildings; chemical; correlation; elements; environment; façades; indices; quarry; rock; samples; sanjurjo; sánchez; weathering; weathering indices cache: esrj-49560.pdf plain text: esrj-49560.txt item: #114 of 261 id: esrj-49641 author: Vargas, Carlos A. title: Letter from editor date: 2014-07-01 words: 652 flesch: 29 summary: The event hosted case studies from some of the pioneers in Colombian development, using the latest reservoir data fiscal updates and global scale technology case studies, to evaluate real potential Colombia holds for unconventional development. J. Vol. 18, No. 2 (December, 2014) Letter from editor During the outgoing year, successful events took place, as Latin American and Caribbean Seismological Commission Assembly, on July 23, 24, 25, in Bogotá, Colombia. keywords: colombia; development; event cache: esrj-49641.pdf plain text: esrj-49641.txt item: #115 of 261 id: esrj-49829 author: Sattari, Mohammad Taghi; Dodangeh, Esmaeel; Abraham, John title: Estimation of daily soil temperature via data mining techniques in semi-arid climate conditions date: 2017-04-01 words: 5895 flesch: 54 summary: Over past decades, remote sensing techniques have also been utilized to measure and predict soil temperature over large areas but a major drawback of this approach is the availability of soil temperature data in the top few centimeters (Elshorbagy and Parasuraman, 2008). Error analysis of temperature predictions at different soil depths indicates that all three models perform well in predicting surface soil temperature data rather than at deeper depths. keywords: algorithm; anfis; data; depths; layer; model; node; output; soil; soil temperature; temperature; tree; values cache: esrj-49829.pdf plain text: esrj-49829.txt item: #116 of 261 id: esrj-50101 author: Işık, Ercan; Kutanis, Mustafa title: Determination of Local Site-Specific Spectra Using Probabilistic Seismic Hazard Analysis for Bitlis Province, Turkey date: 2015-07-01 words: 4238 flesch: 49 summary: Analysing earthquake hazard in Papua New Guinea. The results of this work will form the basis for the replacement of the existing earthquake design spectra in the assessment of earthquake performances of the existing buildings in Bitlis province. keywords: analysis; bitlis; displacement; earthquake; fault; figure; hazard; probabilistic; region; seismic; spectral; turkey; van; zone cache: esrj-50101.pdf plain text: esrj-50101.txt item: #117 of 261 id: esrj-50256 author: Abualhin, Khaldoun Salman title: Mapping of Underwater Seabed Morphology of the Gaza Strip Coastal Zone Using Remote Sensing Technique date: 2016-04-01 words: 4386 flesch: 52 summary: The indices of band 2 and band 4 and of band 3 and band 4 showed less capability in mapping sand bar features. Some of the geomorphological features in the coastal zone of the Gaza Strip are seasonal features such as underwater sand bars. keywords: band; bars; coastal; depth; figure; gaza; mapping; quickbird; seabed; sensing; strip; zone cache: esrj-50256.pdf plain text: esrj-50256.txt item: #118 of 261 id: esrj-50337 author: Lazzús, Juan A; Salfate, Ignacio title: Long-term prediction of wind speed in La Serena City (Chile) using hybrid neural network-particle swarm algorithm date: 2017-01-01 words: 5296 flesch: 61 summary: Wind speed time series Once the capability of the hybrid algorithm was proved, it was used to forecast the long-term of wind speed time series. There are various strategies for wind speed prediction that can be classified into two categories: (1) statistical methods that can be subdivided into numerical weather prediction (NWP) and persistence and (2) artificial intelligence techniques that have subdivisions such as artificial neural networks (ANN) and fuzzy logic (Monfared et al., 2009). keywords: algorithm; data; network; neural; prediction; series; shows; speed; term; time; values; wind cache: esrj-50337.pdf plain text: esrj-50337.txt item: #119 of 261 id: esrj-50724 author: Fattah, Mohammed Y.; Joni, Hasan H.; Al-Dulaimy, Ahmed S. A. title: Compaction and Collapse Characteristics of Dune Sand Stabilized with Lime-Silica Fume Mix date: 2016-04-01 words: 5064 flesch: 58 summary: Investigation of geotechnical specifications of sand dune soil. The purpose of this research is to assess the suitability of dune sands as construction materials, moreover, such a purpose is considered beneficial in assessing appropriate methods for soil stabilization or ground improvement and to assess the suitability of dune sands as subgrade layer for carrying roads and rail foundation. keywords: cbr; collapse; density; dune; fume; lime; sand; silica; soil; table; test cache: esrj-50724.pdf plain text: esrj-50724.txt item: #120 of 261 id: esrj-50889 author: Ozturk, Serkan title: Space-time assessing of the earthquake potential in recent years in the Eastern Anatolia region of Turkey date: 2017-04-01 words: 10039 flesch: 60 summary: Temporal changes in earthquake magnitudes with MD≥4.0 including 1155 events between 1970 and 2015. An application of the earthquake hazard and aftershock probability evaluation methods to Turkey earthquakes. keywords: analysis; anatolia; earthquake; eastern; fault; figure; magnitude; quiescence; region; study; time; turkey; value; zone; öztürk cache: esrj-50889.pdf plain text: esrj-50889.txt item: #121 of 261 id: esrj-51218 author: Aykut, Nedim Onur; Gülal, Engin; Akpinar, Burak title: Performance of Single Base RTK GNSS Method versus Network RTK date: 2015-07-01 words: 3998 flesch: 55 summary: On the other hand, single base RTK stations are being operated in Turkey. Las diferencias entre las coordenadas medidas y las coordenadas conocidas se calcularon en un rango de 1-2 centímetros horizontalmente y cerca de 3 centímetros verticalmente para la estación YLDZ con el método RTK. ABSTRACT RESUMEN Keywords: RTK GNSS, CORS, Single Base RTK Palabras clave: Navegación Cinética Satelital en Tiempo Real, Sistema global de Navegación por Satélite, estaciones de referencia de funcionamiento continuo, base única RTK. keywords: base; coordinates; cors; gnss; network; points; receiver; rtk; time; yldz cache: esrj-51218.pdf plain text: esrj-51218.txt item: #122 of 261 id: esrj-51450 author: Arístegui Cortijo, Andrés; Pérez González, María Eugenia title: Soil sealing in Madrid (Spain), study case of Colmenar Viejo date: 2017-07-01 words: 4575 flesch: 57 summary: This work analyses soil loss over the last 150 years due to urban growth in one of the boroughs of highest environmental value around Madrid (Spain), i.e. Colmenar Viejo. Urban growth in Colmenar Viejo has been steady, has registered exponential increases (soil sealing affected 0.14% of the total municipal territory in 1861 and covers 2.64% nowadays) and has followed similar patterns to other Spanish towns influenced by metropolitan processes. keywords: area; colmenar; growth; madrid; maps; population; sealing; soil; spain; study; viejo cache: esrj-51450.pdf plain text: esrj-51450.txt item: #123 of 261 id: esrj-51562 author: Vargas Jiménez, Carlos A. title: Letter from editor date: 2015-01-01 words: 591 flesch: 39 summary: As part of the strategies to warrant water resources, the method presented in next work is accomplished to be more efficient and cheaper to estimate runoff in a case based in Tamilnadu District, in India. Our call is for regional collaboration optimizing resources, promotion of open journal publications, no isolated academic communities, etcetera. keywords: earth; research; sciences cache: esrj-51562.pdf plain text: esrj-51562.txt item: #124 of 261 id: esrj-51863 author: Agbazo, Medard Noukpo; Gabin, Koton'Gobi; Basile, Kounouhewa; Eric, Alamou; Abel, Afouda; Norbert, Hounkonnou title: Multi-fractal Behaviors of long term daily relative humidity and temperature observed over Benin synoptic stations (West Africa) date: 2019-10-01 words: 5204 flesch: 54 summary: It can help understand the mechanisms governing the dynamics of temperature time series in Benin. ABSTRACT Multifractal Behaviors of Daily Temperature Time Series Observed over Benin Synoptic Stations (West Africa) As shown in Figure 6d, f > 0 for the original, shuffled and surrogate temperature times series over all synoptic stations. keywords: benin; et al; multifractal; series; spectrum; stations; synoptic; temperature; time cache: esrj-51863.pdf plain text: esrj-51863.txt item: #125 of 261 id: esrj-53670 author: Mohamad, Mohamad Tarmizi; Fatt, Ng Tham; Konjing, Zainey; Ashraf, Muhammad Aqeel title: Development of Tropical Lowland Peat Forest Phasic Community Zonations in the Kota Samarahan-Asajaya area, West Sarawak, Malaysia date: 2016-01-01 words: 8318 flesch: 48 summary: From 1.5 to 1.0 m, the presence of peat pollen types that may support the vegetational successions or zones ranging from phasic community I and phasic community IV to VI is noted (Anderson and Muller, 1975). However, peak abundance of Stenochlaena palustris occurs at this interval, thus signifying vegetation succession of phasic community I. From 1.0 to 0.5 m, at approximately 2380 ± 30 years B.P., the presence of peat pollen types that may support the vegetational succession of phasic community zones that range from phasic community I to VI is observed (Anderson and Muller, 1975). keywords: anderson; area; community; deposits; forest; interval; ks.tp.10; lowland; mangrove; peat; pollen; study; swamp; tropical; type cache: esrj-53670.pdf plain text: esrj-53670.txt item: #126 of 261 id: esrj-54133 author: Lu, Lu; Li, Xin; Zhou, Jing; Chen, Genda; Yun, Dong title: Numerical Simulation of Shock Response and Dynamic Fracture of a Concrete Dam Subjected to Impact Load date: 2016-01-01 words: 4402 flesch: 58 summary: When extreme events such as earthquakes, tsunamis, hurricanes, and tornadoes took place, concrete dams can be subject to extensive shaking and wave impact. Concrete dams are thoroughly studied in this paper both experimentally and numerically to understand their behavior and failure modes. keywords: concrete; dam; dams; figure; fracture; impact; model; pressure; structures; time cache: esrj-54133.pdf plain text: esrj-54133.txt item: #127 of 261 id: esrj-54138 author: Chen, Xi; Wang, Ke-lin; Zhou, Wei-jun; Li, Hong-bin; Ashraf, Muhammad Aqeel title: Optimization of land use at Mt. Yuelu scenic area: an analysis using the ecological green equivalent date: 2016-01-01 words: 4603 flesch: 48 summary: First, there is ecological green equivalent land, characterized by its ability to be quantified regarding ecological mechanisms carried out by forest ecosystems. The overall green equivalent (1.13) was higher than the optimum forest coverage ecological green equivalent (1.00). keywords: area; ecosystem; equivalent; forest; green; land; land use; research; structure; use; yuelu cache: esrj-54138.pdf plain text: esrj-54138.txt item: #128 of 261 id: esrj-54140 author: He, Jinxian; Zhang, Xiaoli; Ma, Li; Wu, Hongchen; Ashraf, Muhammad Aqeel title: Geological Characteristics of Unconventional Gas in Coal Measure of Upper Paleozoic Coal Measures in Ordos Basin, China date: 2016-01-01 words: 4305 flesch: 55 summary: Distributional situation of gas resources of coal measures in Ordos basin and China (Zhao et al., 1998; Feng et al., 2002; Liu et al., 2009; Jie, 2010; Zhang et al., 2012a; Yang et al., 2015) In Chinese coal measure strata, because the coal seam, dark mud shale, and tight sandstone interbedded deposit, the geological phenomenon which several kinds of coal measures gasses jointly preserve is relatively prevalent. Analysis results are found that, the unconventional gas in coal measures is mainly developed in Upper Paleozoic in Eastern Ordos Basin, which including coalbed methane, shale gas and tight sandstone gas. keywords: basin; coal; formation; gas; measures; ordos; paleozoic; sandstone; shale cache: esrj-54140.pdf plain text: esrj-54140.txt item: #129 of 261 id: esrj-54141 author: Liu, Xianping; Ju, Xiaodong; Qiao, Wenxiao; Lu, Junqiang; Men, Baiyong; Zhang, Kai; Yao, Yongchao title: Research on Test-bench for Sonic Logging Tool date: 2016-01-01 words: 3374 flesch: 53 summary: The analog signal generated by the DAC is provided to corresponding test module after the processing of filtering and impedance matching. Array Induction Logging Tool (Men et al., 2011), Micro-resistivity Scanning Imaging Logging Tool (Yang et al., 2012), and have successfully applied to the test and calibration of tool modules and subs. keywords: board; controlling; data; interface; logging; software; test; tool cache: esrj-54141.pdf plain text: esrj-54141.txt item: #130 of 261 id: esrj-54144 author: Feng, Naichao; Cheng, Shiqing; Lan, Weixing; Mu, Guoquan; Peng, Yao; Yu, Haiyang title: Variable-Permeability Well-Testing Models and Pressure Response in Low-Permeability Reservoirs with non-Darcy Flow date: 2016-01-01 words: 4116 flesch: 53 summary: Permeability curve of low-velocity non-Darcy flow (i) Through the initial experimental data, plot the flow velocity versus pressure gradient curve V-∆P, then plot the K-∆P curve presenting the relationship between permeability and pressure gradient; (ii) Divide the curve into several linear sections, and consider the permeability of each linear section as a constant; (iii) The finite difference algorithm is employed to discretize the non- linear flow differential equations, and then set up a non-linear equation system in which the pressure is the unknown, and the permeability is a function of pressure gradient, K= K( dp/dr). Influence of non-Darcy effect on non-Darcy type curves In the early section of Figure 4, the type curves in log-log scale coincide as a 45o line, indicating the influence of wellbore storage effect. keywords: boundary; curves; darcy; effect; flow; gradient; non; permeability; pressure cache: esrj-54144.pdf plain text: esrj-54144.txt item: #131 of 261 id: esrj-54400 author: Li, Jian; Chen, Shang-Xiong; Jiang, Ling-Fa title: Test study on the influences of dynamic stress and load history to the dynamic properties of the remolded red clay date: 2016-10-01 words: 4824 flesch: 42 summary: Dynamic strength test curves Dynamic strength of soils varies with loading rate and the cyclic impacting effects of dynamic stress. Therefore, soil dynamic strength and modulus remain under the influence of friction between soil particles. keywords: clay; confining; consolidation; pressure; ratio; red; soil; strain; strength; stress; test; vibration cache: esrj-54400.pdf plain text: esrj-54400.txt item: #132 of 261 id: esrj-54402 author: Guo, Jin Yun; Shen, Yi; Zhang, Kaihua; Liu, Xin; Kong, Qiaoli; Xie, Feifei title: Temporal-spatial distribution of oceanic vertical deflections determined by TOPEX/Poseidon and Jason-1/2 missions date: 2016-04-01 words: 4296 flesch: 55 summary: Accuracy analysis of vertical deflection data observed with the Hannover Digital Zenith Camera System TZK2-D. Journal of Geodesy, 82(6), 347-356. Temporal-spatial distribution of oceanic vertical deflections determined by TOPEX/Poseidon and Jason-1/2 missions Record Manuscript received: 26/11/2015 Accepted for publication: 06/03/2016 How to cite item Guo, J. Y., Shen, Y., Zhang, K., Liu, X., Kong, Q. and Xie F. (2016). keywords: altimetry; components; crossover; data; dovs; gravity; meridional; oceanic; oceans; sea; vertical cache: esrj-54402.pdf plain text: esrj-54402.txt item: #133 of 261 id: esrj-54504 author: Guohui, Li; Xiaocheng, Ma; Chunling, Yang title: Engineering Innovation of a Length of Nearly 3300m large Diameter Pipeline Installed by HDD date: 2016-01-01 words: 3659 flesch: 62 summary: A new global horizontal directional drill (HDD) undersea crossing record has been set regarding pipe diameter, pipe weight and length of crossing, in Saudi Arabia, in 2007 (Share, 2009). Analyzing the cases mentioned regarding pipe diameter, pipe weight and length of the crossing, the case of utilizing a 1016mm diameter,with 3300 lengths and a weight reaching 2096tons pipe cannot complete pullback. keywords: coating; crossing; depth; diameter; formula; hdd; length; pipeline; river; scour cache: esrj-54504.pdf plain text: esrj-54504.txt item: #134 of 261 id: esrj-54555 author: Nagaraju, Arveti; Thejaswi, Arveti; Sreedhar, Yenamala title: Assessment of Groundwater Quality of Udayagiri area, Nellore District, Andhra Pradesh, South India Using Multivariate Statistical Techniques date: 2016-10-01 words: 4960 flesch: 50 summary: The multivariate statistical analysis such as principal component analysis (PCA) and hierarchical cluster analysis (HCA) is an approach to classify groundwater samples and make correlation between variables (Hussain et al. 2008). Results and Discussion From the geochemical analyses of groundwater samples as depicted in Table 1, the pH is in range of 6.98 to 7.70 indicates its suitability for irrigation. keywords: analysis; area; chemistry; correlation; groundwater; india; nagaraju; pradesh; quality; samples; study cache: esrj-54555.pdf plain text: esrj-54555.txt item: #135 of 261 id: esrj-54601 author: Vargas Jiménez, Carlos A. title: Letter from the editor date: 2015-07-01 words: 870 flesch: 46 summary: EARTH SCIENCES RESEARCH JOURNAL Earth Sci. Res. J. Vol. 19, No. 2 (December, 2015): 95-96 Letter from editor Earth Sciences Research Journal presents its latest issue, Volume 19, number 2, with a positive balance in the eve of 2016 and with the challenges for the future editions. During the last two decades, we have published more than 200 papers in all the spectrum of Earth Sciences. keywords: earth; quality; sciences cache: esrj-54601.pdf plain text: esrj-54601.txt item: #136 of 261 id: esrj-54710 author: Zhongpei, Liu; Jianhua, Ping; Yuping, Han title: Chemical Characteristics of Groundwater and Its Spatial Distribution in Urban area of Zhumadian City date: 2016-07-01 words: 2931 flesch: 41 summary: Study on chemical characteristics of shallow groundwater in the urban area of Zhumadian City is conductive to understand further of typical features of current shallow groundwater in the area. The results show that shallow groundwater is mainly of HCO3-Ca type. keywords: area; characteristics; chemical; city; figure; groundwater; resources; shallow; study; urban; zhumadian cache: esrj-54710.pdf plain text: esrj-54710.txt item: #137 of 261 id: esrj-55177 author: Huang, Jin; Yang, Wunian; Yang, Wunian; Yang, Xin; Yang, Xin; Deng, Bing; Deng, Bing title: The Influence of Eco-water Retrieved by Quantitative Remote Sensing on Runoff in Upper Minjiang River Basin date: 2016-07-01 words: 3445 flesch: 43 summary: Consistent seasons should be compared to the amount of eco-water resources in different years as vegetation and precipitation vary among seasons producing large differences in vegetation and soil water content. Deforestation is central to decreases in the supply of eco-water resources making plant protection and restoration for the eco-water layer protection and restoration crucial. keywords: basin; eco; minjiang; remote; river; runoff; sensing; soil; upper; vegetation; water cache: esrj-55177.pdf plain text: esrj-55177.txt item: #138 of 261 id: esrj-55178 author: Zongyong, Wang; Xin, Han; Guxian, LV; Xunyu, Zhang; Yingchun, Zhang; Xiao, Fan; Qinglong, Huo; Yaqing, Xu title: Rb-Sr Isotopic Geochronology and Geological Implications of Dongfeng Gold Deposit in Jiaodong Area date: 2016-01-01 words: 5344 flesch: 56 summary: Res. J. Vol. 20, No. 1 (March, 2016): I1 - I7 ABSTRACT Keywords: Rb–Sr isochron, (87Sr/86Sr) ratio, mineralization, Dongfeng gold deposit, Jiaodong gold-centralized area. Feng et al. (2009) studied the ore-forming conditions, ore body characteristics and wall rock alteration about the No.171 gold vein of Dongfeng gold deposit. keywords: abstract; area; chinese; deposit; dongfeng; dongfeng gold; gold; gold deposit; jiaodong; mineralization; ore cache: esrj-55178.pdf plain text: esrj-55178.txt item: #139 of 261 id: esrj-56382 author: Sun, Hui; Sun, Jianguo; Han, Fuxing; Sun, Zhangqing; Liu, Zhiqiang; Liu, Mingchen; Huang, Xingguo title: Research into the effects of seawater velocity variation on migration imaging in deep-water geology date: 2016-07-01 words: 4082 flesch: 50 summary: As is shown in Equation 3 migration position error of the thn interface correlates with seawater migration velocity mv and velocity in the overlying layer nv , which decreases with mv and increases with nv . Figure 4 shows that when seawater migration velocity is quite low, the orbit of pulse imaging points is the one above the true orbit. keywords: depth; interface; m/s; migration; model; seawater; seawater velocity; velocity cache: esrj-56382.pdf plain text: esrj-56382.txt item: #140 of 261 id: esrj-57177 author: Vargas J., Carlos A. title: Letter from the editor date: 2016-01-01 words: 455 flesch: 58 summary: It is not just Earth Sciences Research Journal that is changing, so too is the global petroleum market. Comments, reviews, and suggestions are always welcomed in Earth Sciences Research Journal through the mail account earthjour_fcbog@unal.edu.co. keywords: earth; journal cache: esrj-57177.pdf plain text: esrj-57177.txt item: #141 of 261 id: esrj-58000 author: Li, Teng; Wu, Caifang title: Influence of pressure, coal structure and permeability on CBM well productivity at various burial depths in South Yanchuan Block, China date: 2016-07-01 words: 6447 flesch: 56 summary: The coal matrix swells with increasing gas pressure, especially under low gas pressure conditions (approximately 3.5 MPa), leading to the reduction in coal permeability (Perera and Ranjith, 2012). Research on the pore structure of 34 coal samples with various maturity from North China has shown that coal permeability is close to the coal pore fractal, especially for middle- and high-ranked coal (Ro,max = 1.47-4.21 %). keywords: coal; coal reservoir; coalbed; et al; gas; methane; methane production; permeability; pressure; production; reservoir; stress; structure; type cache: esrj-58000.pdf plain text: esrj-58000.txt item: #142 of 261 id: esrj-59496 author: Ocalan, Taylan; Erdogan, Bahattin; Tunalioglu, Nursu; Durdag, Utkan Mustafa title: Accuracy Investigation of PPP Method Versus Relative Positioning Using Different Satellite Ephemerides Products Near/Under Forest Environment date: 2016-10-01 words: 6396 flesch: 49 summary: Moreover, when we compare the results among Web-based services, AUSPOS in relative solution and Trimble- RTX in PPP solution provides the best results. Owing to some advantages, such as work-duration and cost-effectiveness, many of users have implemented PPP method instead of the traditional relative positioning method for several applications. keywords: accuracy; coordinate; data; differences; gnss; gps; method; online; orbit; point; positioning; ppp; products; satellite; services; solutions; web cache: esrj-59496.pdf plain text: esrj-59496.txt item: #143 of 261 id: esrj-59822 author: Vargas, Carlos A. title: Letter from the editor date: 2016-04-01 words: 355 flesch: 59 summary: All those subjects are welcome in Earth Sciences Research Journal. Editor in Chief, Earth Sciences Research Journal L E T T E R F R O M T H E E D IT O R keywords: journal; research cache: esrj-59822.pdf plain text: esrj-59822.txt item: #144 of 261 id: esrj-59972 author: Palanisamy, Thanabalan; R, Vidhya title: Derivation of Soil Moisture using Modified Dubois Model with field assisted surface roughness on RISAT-1 data date: 2018-01-01 words: 4244 flesch: 58 summary: In order to quantatively compare the profiles and measure the spatial characteristics the spatial wave number (k) and spatial scale (2π) is used for estimating the surface roughness from soil moisture data using backscatter SAR (Evans 1992; Wang 2011; Fresnel 2005). ABSTRACT Keywords: Soil moisture, surface roughness, Modified Dubois Model, Topp’s model, RISAT 1-SAR. Derivation of Soil Moisture using Modified Dubois Model with field assisted surface roughness on RISAT-1 data ISSN 1794-6190 e-ISSN 2339-3459 http://dx.doi.org/10.15446/esrj.v22n1.59972 P. Thanabalan*, and R. Vidhya Institute of Remote Sensing, Anna University, Chennai – 600025, Tamilnadu, India. keywords: data; dubois; estimation; field; land; model; moisture; radar; remote; roughness; sar; soil; soil moisture; surface cache: esrj-59972.pdf plain text: esrj-59972.txt item: #145 of 261 id: esrj-60211 author: Chen, Yifu; Xie, Zhong; Qiu, Zhenge; Zhang, Min; Zhong, Saishang title: The model of direct relative orientation with seven constraints for geological landslides measurement and 3D reconstruction date: 2016-10-01 words: 5018 flesch: 53 summary: This model can directly calculate the eight unknowns 0 0 0 0 0 0 0 0 1 2 3 4 6 7 8 9, , , , , , ,L L L L L L L L with eight or more conjugate points without approximate values. 01 2 3 4 6 7 8 9, , , , , , ,L L L L L L L L can be calculated when the value of BX is fixed. keywords: accuracy; b b; l b; model; orientation; relative cache: esrj-60211.pdf plain text: esrj-60211.txt item: #146 of 261 id: esrj-60226 author: Cantillo, Victor; Mercado, Vicente; Pájaro, César title: Empirical Correlations for the Swelling Pressure of Expansive Clays in the City of Barranquilla, Colombia date: 2017-01-01 words: 2862 flesch: 53 summary: 4. Discussion A broader revision of swell pressure correlation equations can be found in Al-Rawas and Goosen (2006). In this study, the constant volume method was used to determine swell pressure values implemented to develop the correlations equations. keywords: barranquilla; clays; content; correlation; equations; figure; pressure; swell; water cache: esrj-60226.pdf plain text: esrj-60226.txt item: #147 of 261 id: esrj-61135 author: Abbasi, Saiq Shakeel; Liu, Jiangping; Hameed, Nayima; Ehsan, Muhsan title: A modified approach for Elastic Impedance Inversion due to the variation in value of K date: 2018-07-01 words: 5499 flesch: 59 summary: After generation of elastic impedance values at different angles, inversion procedure was applied; P-Impedance, S-impedance, and density of the following equation were inverted. To overcome this problem, Whitcombe (2002) introduced constants V Vp s0 0, and  0 which allow elastic impedance values to remain constant for a layer and does not change with the angle  and modified the elastic impedance function as following. keywords: avo; constant; impedance; inversion; reflection; type; value; wave;   cache: esrj-61135.pdf plain text: esrj-61135.txt item: #148 of 261 id: esrj-61365 author: Vargas J., Carlos A. title: Letter from the editor date: 2016-07-01 words: 490 flesch: 59 summary: Editor in Chief, Earth Sciences Research Journal L E T T E R F R O M T H E E D IT O R Is not our right to be protected when the unscrupulous science is applied, especially when the environment and our lives are at risk? keywords: earth; principle cache: esrj-61365.pdf plain text: esrj-61365.txt item: #149 of 261 id: esrj-62063 author: Qian, Fengkui; Wang, Weiwen; Zhang, Xuefeng; Zhang, Jingye; Bian, Zhenxing title: Dominant landscape characteristics of the arable land red line in Donggang, China date: 2022-05-11 words: 5845 flesch: 48 summary: Evaluation for landscape aesthetic value of the Natural World Heritage Site. Effects of past landscape changes on aesthetic landscape values in the European Alps. keywords: area; characteristics; china; city; donggang; evaluation; farmland; landscape; landscape characteristics; line; pattern; plots; resources; study; value cache: esrj-62063.pdf plain text: esrj-62063.txt item: #150 of 261 id: esrj-62552 author: Oktar, Osman; Erdoğan, Hediye title: Research of behaviors of continuous GNSS station by signal analysis methods date: 2018-01-01 words: 7864 flesch: 55 summary: 6 shows that there are 60, 90, and 312 days of periodic movements in Up direction of station YUNA coordinate time series and 15, 42,76, and 129 days of periodic movements in North direction of station KNYA1 coordinate time series. DWT was carried out to GNSS coordinate time series of North, East, and Up coordinates components of stations with multiresolutional analysis. keywords: analysis; components; coordinate; cors; days; direction; energy; gnss; gps; linear; movements; north; series; signal; stations; time; time series; wavelet cache: esrj-62552.pdf plain text: esrj-62552.txt item: #151 of 261 id: esrj-62783 author: Vargas J., Carlos A. title: Letter from the editor date: 2016-10-01 words: 630 flesch: 45 summary: EARTH SCIENCES RESEARCH JOURNAL Earth Sci. Res. J. Vol. 20, No. 4 (December, 2016) Letter from the editor At the end of the 2016 and early 2017, Earth Sciences Research Journal wants to thank you for making this project a successful journal. In Turkey, a country from many papers are coming from to Earth Sciences Research Journal, will celebrate the Fourth International Conference on Earthquake Engineering and Seismology, on October. keywords: conference; journal cache: esrj-62783.pdf plain text: esrj-62783.txt item: #152 of 261 id: esrj-63002 author: Huang, Lanying; Liu, Shengdong; Wang, Bo; Zhou, Fubao title: Quantitative Calculation of Aquifer Water Quantity Using TEM Data date: 2017-01-01 words: 3072 flesch: 57 summary: Therefore, transient electromagnetic method (TEM) was proposed, and TEM data was processed to detect the water yield property of a targeted layer in the coal mine. It can thus be concluded that it is feasible to predict aquifer water content with TEM data. keywords: aquifer; china; coal; data; figure; method; quantity; resistivity; tem; water cache: esrj-63002.pdf plain text: esrj-63002.txt item: #153 of 261 id: esrj-63003 author: Chen, Wangang; Yang, Yu; Sun, Hansen; Zhang, Chengwei; Wen, Qin; Li, Yanyan title: Solution and type curves for the seepage model of the water-bearing coalbed with leakage recharge date: 2017-01-01 words: 3511 flesch: 54 summary: A group of pressure derivative type curves (Figure 3) are drawn, with as ordinate against as abscissa and -2SDeb as the curve parameter. According to the definitions of dimensionless pressure, dimensionless time and dimensionless radius, the dimensionless partial differential equation is obtained after simplification. keywords: coalbed; curves; dimensionless; layer; leakage; model; pressure; seepage; type; water cache: esrj-63003.pdf plain text: esrj-63003.txt item: #154 of 261 id: esrj-63004 author: Deng, Hua; Li, Yan; Zhang, Yingchao; Zhou, Hou; Cheng, Peipei; Wang, Jia; Ashraf, Muhammad Aqeel title: Prediction of Hub Height Winds over the Plateau Terrain by using WRF /YSU/Noah and Statistical Forecast date: 2017-01-01 words: 5355 flesch: 57 summary: The WRF/YSU/Noah outputs without any post-processing show the lowest average 70-m wind speeds, which indicates that the NWP model outputs combined with statistical techniques are necessary for wind speed forecast. The three time-scale forecasting successfully forecast the westerly (from SSW to NNW) speed at 05012, and the nowcasting shows a significant degree of improvement in wind speed forecasting at all four sites. keywords: ann; forecast; forecasting; model; noah; prediction; speed; svm; term; time; wind; wind speed; wrf; ysu cache: esrj-63004.pdf plain text: esrj-63004.txt item: #155 of 261 id: esrj-63006 author: Wang, Bo; Liu, Shengdong; Li, Shining; Zhou, Fubao title: Double-transmitting and Sextuple-receiving Borehole Transient Electromagnetic Method and Experimental Study date: 2017-04-01 words: 4504 flesch: 44 summary: The transmitting circuit conveys electromagnetic field with the same value and opposite direction so that the electromagnetic field diffuses to the radial azimuth from the middle of the probe. En este trabajo se dedujo la respuesta de las ecuaciones del modo transmisión-recepción para la transmisión doble y la recepción séxtuple en las perforaciones con el método TEM, y se obtuvieron las respuestas características del segmento de inducción y el segmento de atenuación de las ondas de recepción basados en la solución de las ecuaciones en condición de apagado de la gráfica de función, lo que proporciona las bases para el análisis teórico. keywords: anomaly; borehole; electromagnetic; field; figure; loops; radial; receiving; response; tem; transient; transmitting cache: esrj-63006.pdf plain text: esrj-63006.txt item: #156 of 261 id: esrj-63007 author: Zhao, Baojun; Sun, Wenjin; Zhan, Tianming title: The Modified Quasi-geostrophic Barotropic Models Based on Unsteady Topography date: 2017-01-01 words: 2442 flesch: 55 summary: λ ~ 10 magnitude Large-scale atmospheric motion of large topography is suitable for such conditions (L ~ 106 m, U ~ 10m/s, f 0 Yang (2011,2012) and Song (2012, 2013) discussed topography changes over time discussed topography changes over time t, the influence of the nonlinear long wave amplitude and waveform. keywords: atmospheric; eqs; equation; journal; models; quasi; scale; topography cache: esrj-63007.pdf plain text: esrj-63007.txt item: #157 of 261 id: esrj-63425 author: Alvarez Ysabel, Santo Trinidad; Agredo Cardona, Gustavo Adolfo; Rincón, David Felipe title: Quantifying the statistical distribution of Tropical Cyclone Activity in the historical record of the Dominican Republic date: 2017-10-01 words: 7377 flesch: 50 summary: In this study, we re-examined the Official Hurricane Database from the National Hurricane Center (HURDAT- NHC), an agency associated with NOAA, for tropical cyclone activity from 1851 to 2012for the Dominican Republic on the island of Hispaniola in the Caribbean Basin. The North East Atlantic (NEA) and the Caribbean Sea Basin (CSB) are characterized as a high probability zone for the formation, development and impact of tropical cyclones (TC), according to the National Ocean and Atmospheric Administration (NOAA). keywords: activity; analysis; area; atlantic; caribbean; cyclone; database; distribution; dominican; events; historical; hurricane; landfall; major; period; probability; republic; storms; study; time; tracks; tropical; year cache: esrj-63425.pdf plain text: esrj-63425.txt item: #158 of 261 id: esrj-64008 author: Ogly Gahramanov, Gahraman Nariman title: Formation of oil and gas reservoirs in deep water areas of the South Caspian Depression date: 2017-10-01 words: 5661 flesch: 48 summary: Next, it is expedient to investigate the mechanism of formation of SCD structures during the emergence of vertical forces. Estimations of excessive pressures for various thicknesses and depths of gas condensate deposits were carried out in order to determine the regularities of the changes in excessive pressure and the gradients of reservoir pressure with depth (Table 1). keywords: basin; caspian; deposits; depths; formation; gas; oil; pressure; reservoir; scd; structure cache: esrj-64008.pdf plain text: esrj-64008.txt item: #159 of 261 id: esrj-64463 author: Vargas Jiménez, Carlos A. title: Letter from the editor date: 2017-01-01 words: 455 flesch: 66 summary: Science, not silence, Oceans are rising, and so are we, Fund Science = Fun Future, Policy without science is a Biohazard, Science is not a partisan issue, it is the foundation of our society, Science is NOT an opinion, were some of the messages exhibited by demonstrators in their marches. Climatic change, clean energy, petroleum, politic points of view using science for their own benefit. keywords: earth; science cache: esrj-64463.pdf plain text: esrj-64463.txt item: #160 of 261 id: esrj-64938 author: Wang, Bo; Liu, Shengdong; Zhou, Fubao; Zhang, Jun; Zheng, Fangkun title: Diffraction Characteristics of Small Fault ahead of tunnel face in coal roadway date: 2017-04-01 words: 3852 flesch: 52 summary: According to the seismic records and the wavefield snapshots of the model, with reference to kinematics and dynamics characteristics of various types of seismic wave, all kinds of waves can be recognized from the complex seismic wavefield, and they are as follows: A direct P-wave, this direct P-wave is with circular propagation from the source to the surrounding rock. In the aspect of reflected channel wave, Essen et al. (2007) analyzed the response characteristics of Rayleigh channel wave of split coal through numerical simulation; Yang et al. keywords: channel; coal; detection; diffraction; face; fault; roadway; tunnel; wave cache: esrj-64938.pdf plain text: esrj-64938.txt item: #161 of 261 id: esrj-65172 author: Wu, Guanglin; Zhu, Liangsheng; Li, Fangcheng title: Mean velocity and suspended sediment concentration profile model of turbulent shear flow with probability density function date: 2017-07-01 words: 3600 flesch: 53 summary: Other laws for turbulent velocity profile or concentration profile are based on an indirect turbulence model (Bucci et al., 2008; Nucci and Fiorucci, 2011). Thus, the upper mean velocity will increase along with an increasing value of m. The curve shape fits turbulent velocity profile when the value of m is lower in this case, such as m=0.25, 0.1 and 0.01. keywords: density; flow; function; mean; model; probability; profile; shear; ssc; velocity cache: esrj-65172.pdf plain text: esrj-65172.txt item: #162 of 261 id: esrj-65185 author: Ye, Xiaoling; Yang, Xing; Xiong, Xiong; Yang, Shuai; Chen, Yang title: Spatial Quality Control Method for Surface Temperature Observations Based on Multiple Elements date: 2017-04-01 words: 4653 flesch: 47 summary: Therefore, the efficiency and accuracy of RF model are improved. However, surface observation stations are easily affected by the gross error and random error during the data acquisition process. keywords: control; data; error; meteorological; method; model; observations; pca; quality; srt; stations; target; temperature cache: esrj-65185.pdf plain text: esrj-65185.txt item: #163 of 261 id: esrj-65192 author: Ouyang, Yuan; Yang, Wunian; Huang, Hanxiao; Liu, Hong; Zhang, Jianlong; Zhang, Jianhua title: Metallogenic Dynamics Background of Ga’erqiong Cu-Au Deposit in Tibet, China date: 2017-04-01 words: 6646 flesch: 54 summary: Metallogenic Dynamics Background of Ga’erqiong Cu- Au Deposit in Tibet, China. The testing result indicates: quartz diorite and granite porphyry were formed respectively in 88±2Ma and 83±1Ma, belonging to the magmatic activity of the early stage of Upper Cretaceous; quartz diorite and granite porphyry have geochemical characteristics similar to those of island arc rock of subduction zone and geochemical indexes similar to “adakite.” keywords: block; characteristics; crust; deposit; diorite; formation; ga’erqiong; quartz; rock; tibet; zircon cache: esrj-65192.pdf plain text: esrj-65192.txt item: #164 of 261 id: esrj-65215 author: Zhao, Jianjun; Zhoub, Junwu; Su, Weixing; Liu, Fang title: Online Outlier Detection for Time-varying Time Series on Improved ARHMM in Geological Mineral Grade Analysis Process date: 2017-07-01 words: 3629 flesch: 51 summary: ARHMM outlier detection algorithm also composed of two steps: One step-- Preliminary detection From Equation 1, we can see that there is a deviation between estimated process data by AR model and real process data. Subsequent simulation by model data and practical application verify the accuracy, robustness, and property of online detection of the algorithm. keywords: algorithm; analysis; arhmm; data; detection; grade; method; mineral; model; order; outlier; time cache: esrj-65215.pdf plain text: esrj-65215.txt item: #165 of 261 id: esrj-65216 author: Zhou, Yu; Wang, Tingling title: PNN-based Rockburst Prediction Model and Its Applications date: 2017-07-01 words: 4197 flesch: 59 summary: According to the mechanism of rock burst, rocks’ maximum tangential stress σ ө , rocks’ uniaxial compressive strength σ c , rocks’ uniaxial tensile strength σ t and elastic energy index W et are defined as the criterion indices for rock burst prediction in the proposed PNN-model. Applying our proposed prediction model to rock burst prediction of this engineering, the result of prediction is light rock burst activity. keywords: burst; classification; method; model; pnn; prediction; results; rock; rock burst cache: esrj-65216.pdf plain text: esrj-65216.txt item: #166 of 261 id: esrj-65577 author: Cepeda Cuervo, Edilberto; Achcar, Jorge Alberto; Andrade, Marinho G. title: Seasonal Hydrological and Meteorological Time Series date: 2018-04-01 words: 5694 flesch: 49 summary: Concluding Remarks In this paper, we introduce a new class of time series models assuming continuous random variables within the exponential family applied to hydrological and meteorological data. Different time series models as ARMA and higher orders of MA models have been used by some authors when considering hydrologic regionalization of watersheds (see for example, Chiang et al., 2002 a, b; Wang et al., 2015). keywords: analysis; beta; data; distribution; figure; mean; model; parameters; series; time; time series; variance cache: esrj-65577.pdf plain text: esrj-65577.txt item: #167 of 261 id: esrj-65640 author: Cordão Neto, Manoel Porfirio; Hernández, Oisy; Lorenzo Reinaldo, Raydel; Borges, Camila; Caicedo, Bernardo title: Study of the relationship between hydro-mechanical soil behavior and microstructure of a structured soil date: 2018-04-01 words: 5044 flesch: 54 summary: All tests presented in this study were performed on soil samples obtained from the experimental field of the University of Brasília (UnB) (from a depth of 2 m) in Brasília City, DF, Brazil. The general and congruent effects of structure in natural soils and weak rocks. keywords: behavior; brasília; clay; consolidation; curves; figure; pore; psd; results; samples; size; slurry; soil cache: esrj-65640.pdf plain text: esrj-65640.txt item: #168 of 261 id: esrj-66103 author: He, Peng; Sun, Liuying; Wang, Zhen title: Direct Shear Test of Unsaturated Soil date: 2017-10-01 words: 3224 flesch: 61 summary: It can be summarized from Figure 5 that soil shear stress increased with the rising of vertical pressure and matric suction. Direct shear test stress parameters of unsaturated soil. keywords: figure; matric; parameters; pressure; results; shear; soil; stress; test cache: esrj-66103.pdf plain text: esrj-66103.txt item: #169 of 261 id: esrj-66104 author: Zhou, Beibei; Chen, Xiaopeng title: Effect of Nano-Carbon on Water Holding Capacity in a Sandy Soil of the Loess Plateau date: 2017-10-01 words: 6448 flesch: 55 summary: Effect of different thicknesses of soil-nano carbon layers and nano carbon contents on soil water contents in the soil profile The findings of this study presented above have shown that the soil- nanocarbon could increase soil water infiltration rates. The soil water content in the control soil column varied little with depth, and the soil water content was relatively high even at the lower end of the soil column; this distribution of soil water contents was similar to that of the column containing the layer with a nanocarbon content of 0.1%. keywords: capacity; contents; effect; infiltration; layer; mixture; nanocarbon; nanocarbon contents; soil; soil water; water; water content cache: esrj-66104.pdf plain text: esrj-66104.txt item: #170 of 261 id: esrj-66105 author: Lu, Junfu; Li, Di; Xue, Xiaoqiang; Ling, Shenlin title: Macro-Micromechanical Properties of Sandy Pebble Soil of Different Coarse-Grained Content date: 2018-01-01 words: 4050 flesch: 52 summary: By checking calculation, the micromechanical parameters of sandy pebble soils of four different gradations were obtained, and the effect of coarse-grained content on the mechanical properties of sandy pebble soil was analyzed from the macro and micro points of view, and the following conclusions were obtained: The stress-strain curve of sandy pebble soil exhibited strain softening with the rise of coarse-grained content; when the confining pressure was the same, the stress peak increased gradually with the increase of coarse-grained content; The shear strength of sandy pebble soil increased steadily with the increase of coarse-grained content, and the internal friction angle and cohesion of sandy pebble soil linearly increased with the rise of coarse-grained content; Based on the micromechanical parameters of sandy pebble soil in the triaxial test, the micromechanical parameters of discrete element of sandy pebble soil of four different gradations were obtained using the comparative data method of numerical triaxial test, providing the theoretical support for the fine research on stability of sandy pebble soil; The increase of the coarse-grained content of sandy pebble soil resulted in increased contact stiffness and friction coefficient of micro parameters of discrete element, thus increasing the strength of sandy pebble soil; The dilatancy of specimens was caused by the particles in the upper and lower parts of the model moving to the middle and the particles in the middle of the model moving outward, and the numerical triaxial test can better reproduce the triaxial compression process. The displacement of sandy pebble soil particles in the triaxial compression process was analyzed, to reveal the micromovement of sandy pebble soil particles in the triaxial compression process. keywords: coarse; content; element; numerical; parameters; particle; pebble soil; strain; stress; test; triaxial cache: esrj-66105.pdf plain text: esrj-66105.txt item: #171 of 261 id: esrj-66106 author: Wang, Jiading; Ma, Yan; Guo, Qianyi; Chu, Di title: Influence of Pressure and Water Content on Loess Collapsibility of the Xixian New Area in Shaanxi Province, China date: 2017-10-01 words: 5041 flesch: 54 summary: The relation curves of pressure and strain at different levels of water content (Fig. 4) and the curves of water content and strain under different levels of loess pressure in the Xixian New Area (Fig. 5) were all obtained using the K0 test with 10 kinds of water content and 9 levels of pressure. Therefore, loess collapsibility will be the most important geotechnical problem in future foundation investigation and construction. keywords: area; collapsibility; content; deformation; increases; loess; new; pressure; soil; water; water content; xixian cache: esrj-66106.pdf plain text: esrj-66106.txt item: #172 of 261 id: esrj-66107 author: Zeng, Rui; Wang, Yingyan; Wang, Wanliang title: A co-occurrence region based Bayesian network stepwise remote sensing image retrieval algorithm date: 2018-01-01 words: 5234 flesch: 45 summary: Sub-image is taken as the minimum unit to judge whether image regions are spatially connected, preventing segmented regions from being spatially unconnected (Tariq et al., 2017). By comprehensively considering significance and distance between image regions, integrated region matching allows one region to match multiple regions, thereby minimizing retrieval errors caused by inaccurate image segmentation (Yasin et al., 2017). keywords: algorithm; bayesian; image; image retrieval; matching; region; retrieval; semantic; sensing; stepwise; time cache: esrj-66107.pdf plain text: esrj-66107.txt item: #173 of 261 id: esrj-66108 author: Jiang, Haibo title: The Relationship between Mechanical Properties and Gradual Deterioration of Microstructures of Rock Mass Subject to Freeze-thaw Cycles date: 2018-01-01 words: 4705 flesch: 53 summary: With the objective to incorporate freeze-thaw cycle experiment into headrace tunnel engineering, in the present study two groups of andesite rock samples in different states are tested under the conditions of the lowest freezing temperature of –40 ºC and the thawing temperature of 20 ºC. Damage detection was performed by magnetic resonance imaging for the interior microstructure of rock samples subject to different freeze-thaw cycles, and the relationship between the sample mechanical properties and gradual deterioration of rock microstructures was discussed. For rock samples saturated by vacuum, 40 freeze-thaw cycles lead to a decrease of 36.86% (equivalent to 58.2 MPa) in rock strength and a drop of 44.85% (equivalent to 2.83 GPa) in elasticity modulus. keywords: cycles; damage; deterioration; freeze; mass; pore; rock; samples; strength; thaw; thaw cycles cache: esrj-66108.pdf plain text: esrj-66108.txt item: #174 of 261 id: esrj-66446 author: Vargas Jiménez, Carlos Alberto title: Letter from the editor date: 2017-04-01 words: 432 flesch: 64 summary: As every two years, in a city strategically picked up to show the best of the Colombian and Latinamerican Geology, the Sociedad Colombiana de Geologia entity (Colombian Geology Society) presents the XVI Congress of Geology and the third Explorers Symposium. With the best regards, Carlos Alberto Vargas Jimenez Editor in chief L E T T E R F R O M T H E E D IT O R EARTH SCIENCES RESEARCH JOURNAL Earth Sci. Res. J. Vol. 21, No. 2 (June, 2017) keywords: earth; geology cache: esrj-66446.pdf plain text: esrj-66446.txt item: #175 of 261 id: esrj-67859 author: Prieto G., Germán A. title: Letter from the editor date: 2017-07-01 words: 323 flesch: 64 summary: Both events showed a normal faulting mechanism, and although they were widely felt, their major impact was in densely populated Mexico City, where wave amplification is expected due to the geological features of the City's soil structure. Numerous casualties and at least 40 buildings collapsed in Mexico City. keywords: city cache: esrj-67859.pdf plain text: esrj-67859.txt item: #176 of 261 id: esrj-67925 author: Wang, Pu; Jiang, Lishuai; Ma, Changqing; Yuan, Anying title: Evolution Laws of Mining-induced Stress in Floor Strata and Its Influence on the Stability of a Floor Roadway Affected by Overhead Mining date: 2020-01-01 words: 7045 flesch: 56 summary: Mechanical analysis of floor stress affected by overhead mining Given the relationship between the advancing direction of working face and floor roadway, the overhead mining was divided into mining with the advancing direction of the working face parallel to the roadway and mining in which the advancing direction was perpendicular to the roadway. Floor stress affected by overhead mining when LD = 60 m: (a) Distribution of floor stress; (b) plastic zone of coal roof and floor. keywords: coal; deformation; effect; face; figure; floor roadway; floor stress; mining; mining stress; model; rocks; roof; stress cache: esrj-67925.pdf plain text: esrj-67925.txt item: #177 of 261 id: esrj-68100 author: Godoy, Vanessa; Napa-García, Gian Franco; Zuquette, Lázaro title: Determination of the sodium retardation factor using different methods: Analysis of their characteristics and impact on the solute movement prediction in a structured Brazilian soil date: 2018-10-01 words: 7817 flesch: 55 summary: Because of that, it is of vital importance to evaluate each method and how they can be adequate for the soil under investigation when determining Rd. ABSTRACT Keywords: column experiment; solute transport prediction; undisturbed soil column. These results show the efficiency of the use of isotherms obtained from undisturbed soil columns to determine Rd. keywords: btc; cherry; column; concentration; determination; experimental; freeze; isotherm; journal; method; movement; prediction; retardation; sodium; soil; solute; solution; sorption; transport; url cache: esrj-68100.pdf plain text: esrj-68100.txt item: #178 of 261 id: esrj-68391 author: Li, Shuheng; Guo, Wei; Gao, Na title: Climatic and hydrological changes in Gaoyou Lake, eastern China over the last millennium, inferred from pollen and grain size records date: 2022-09-08 words: 9006 flesch: 57 summary: However, the paleoenvironmental studies of Gaoyou Lake sediments have not received adequate attention. Our research team combined grain size, magnetic susceptibility, and geochemical proxies in Gaoyou Lake sediments to infer regional climate fluctuations (Li et al., 2007; Li et al., 2015). keywords: changes; china; climate; core; et al; gaoyou; gaoyou lake; grain; gy08; lake; pollen; river; sediment; size; water cache: esrj-68391.pdf plain text: esrj-68391.txt item: #179 of 261 id: esrj-69899 author: Prieto G., Germán A. title: This issue of Earth Science Research Journal date: 2017-10-01 words: 394 flesch: 47 summary: Wang et al. investigate the collapsibility of loess deposits in the Xixian New Region using compressions tests under different pressure and water content conditions. Using high-resolution aeromagnetic survey data in combination with other geological-geophysical thematic maps, Batista takes advantage of GIS tools for identifying different tectonic regimes in the Sabinas Basin, northeastern Mexico. Regions where the basin is deepest and the delineation of faults allows for the determination of block boundaries as well. keywords: earth; sciences cache: esrj-69899.pdf plain text: esrj-69899.txt item: #180 of 261 id: esrj-70539 author: Zhu, Haihua; Zhang, Tingshan; Lang, Jun; Zeng, Jianli; Liang, Xing; He, Yong; Wang, Gaocheng; Li, Junjun title: Influence of black shale composition on methane adsorption and gas content: Implications for gas storage in the Longmaxi black shales date: 2018-01-01 words: 3169 flesch: 55 summary: Figure 4.Relative proportion of CH4 adsorbed on organic matter and minerals 5.2 Methane absorption capacity and shale gas content Due to the high-to-over thermal maturity of organic matter and strong tectonic deformation,the gas content of the Longmaxi shalesis controlled by many factors, especiallythe preservation condition, natural matter abundance, and reservoir quality(e.g.,Zou In the shale samples from Well YS8,the preservation conditions and thermal evolution processes of organic matterare similar, thus enablingan evaluation ofthe influence of shale composition on shale gas content. keywords: adsorption; capacity; ch4; content; gas; gas content; longmaxi; methane; samples; shale; toc cache: esrj-70539.pdf plain text: esrj-70539.txt item: #181 of 261 id: esrj-71706 author: Pacheco, Henry Antonio; Méndez, Williams; Moro, Armando title: Soil erosion risk zoning in the Ecuadorian coastal region using geo-technological tools date: 2019-10-01 words: 8753 flesch: 51 summary: Zonificación de la susceptibilidad de fenómenos de remoción en masa provocados por terremotos en la ciudad de Portoviejo. Keywords: Manabí province; GIT; soil erosion risk. keywords: areas; del; distribution; ecuador; erosion; erosion risk; land; low; manabí; map; ndvi; processes; province; rainfall; region; risk; soil; soil erosion; use; vegetation cache: esrj-71706.pdf plain text: esrj-71706.txt item: #182 of 261 id: esrj-71879 author: Ozdogan, Mehmet Volkan; Gonen, Alper title: Determination of Distance Required to Ensure Stope and Footwall-drift Non-interaction Zone based on Geological Strength Index date: 2019-01-01 words: 3644 flesch: 60 summary: Table 4 shows the displacements around the footwall drifts for various GSI values and various stope distances. ABSTRACT Keywords: Footwall drift, numerical analysis, underground stability. keywords: displacements; distance; drift; footwall; footwall drift; gsi; interaction; rock; stope; zone cache: esrj-71879.pdf plain text: esrj-71879.txt item: #183 of 261 id: esrj-72249 author: Li, Yuanhui; Zhou, Rui title: Analysis of Mechanical Characteristics and Instability Law of Inverse Fault under the Influence of Mining date: 2018-04-01 words: 4903 flesch: 56 summary: (3) Based on actual site conditions, rock burst was more likely to occur in the lanes approaching the fault zone, indicating that the spacing between the working surface and fault zone was an important factor affecting the occurrence of rock burst. ABSTRACT Keywords: Reverse fault; Normal stress; Shear stress; Fault instability; Rock burst; Analysis of Mechanical Characteristics and Instability Law of Fault under the Influence of Mining ISSN 1794-6190 e-ISSN 2339-3459 http://dx.doi.org/10.15446/esrj.v22n2.72249 Yuanhui Li1,Rui Zhou1,2* 1Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University, Shenyang 110819, P.R. China. keywords: coal; distance; face; fault; fault zone; mining; rock; shear; stress; surface; working cache: esrj-72249.pdf plain text: esrj-72249.txt item: #184 of 261 id: esrj-72250 author: Fan, Cunhui; Qin, Qirong; Hu, Dongfeng; Wang, Xiaolei; Zhu, MengYue; Huang, Wei; Li, Yuxi; Ashraf, Muhammad Aqeel title: Fractal characteristics of reservoir structural fracture: a case study of Xujiahe Formation in central Yuanba area, Sichuan Basin date: 2018-04-01 words: 5152 flesch: 52 summary: Contour map of the distribution of faults capacity dimension of T3x 4.2 Fractal features of fault This paper carried out different-scale gridding and calculated corresponding fractal dimensions to the T3x fault tectonic map (fig.3) of the Fault-Fold Belt of the central Yuanba area using the box covering method. The fitting relation between faults capacity dimension and fracture face density k = 8.6596D‘ – 11.014 on the sub-region of this coring well have the following fitting relationship: where D‘ is the capacity dimension of the fracture on the sub-region. keywords: area; central; development; dimension; distribution; fault; formation; fractal; fracture; gas; reservoir; study; xujiahe; yuanba cache: esrj-72250.pdf plain text: esrj-72250.txt item: #185 of 261 id: esrj-73438 author: Pazoki, Amir; Rashidi-Khabir, Reza; Jahanian, Reza; Pourbahaadini, Ali title: Characterization of Band-E Narges magnetite iron ore for mineral processing date: 2018-04-01 words: 2853 flesch: 52 summary: Use of floatation on magnetic separation concentrate Since after three stages of magnetic separation, the sulfur content was 1.08%, the concentrate was subjecting to a next grounding with 147Characterization Of Band-E Narges Magnetite Iron Ore for Mineral Processing Table 2. Magnetic separation and flotation methods for upgrading magnetite iron ore were carried out in different experimental conditions with varied parameters. keywords: content; floatation; grade; iron; micron; separation; sulfur cache: esrj-73438.pdf plain text: esrj-73438.txt item: #186 of 261 id: esrj-74108 author: Lázaro, Luís Vilcapoma; López Herrera, María Elena; Pereyra, Patrizia; Fernández, Daniel Palacios; Pérez, Bertin; Rojas, Jhonny; Sajo-Bohus, Laszlo title: Measurement of radon in soils of Lima City - Peru during the period 2016-2017 date: 2019-07-01 words: 11620 flesch: 57 summary: 175Measurement of radon in soils of Lima City - Peru during the period 2016-2017 Results and discussion Comments on results of soil gas radon concentrations and on the measure- ment methodology The minimum and maximum values of soil gas radon concentration in the study area were 0.1 kBq/m3 and 64.3 kBq/m3, respectively, which show great variability of the data. Since soil gas radon concentrations are integrated in periods of about two weeks, anomalies could be recorded in periods prior to the earthquake or in the period in which the event occurred. keywords: area; average; chillón; city; concentration; et al; gas; gas radon; hole; lima; lima city; measurements; period; radon; radon concentration; rivers; rocks; rímac; soil; soil gas; soil radon; uranium cache: esrj-74108.pdf plain text: esrj-74108.txt item: #187 of 261 id: esrj-74390 author: Chen, Xiaohui; Liu, Zhicheng; Liang, Xin; Zhang, Zhao; Zhan, Tingshan; Zhu, Haihua; Lang, Jun title: The shale gas revolution in China—problems and countermeasures date: 2018-07-01 words: 7373 flesch: 48 summary: The enormous success of shale gas development and exploration has attracted considerable attention from governments and energy companies all over the world and set off a boom in exploration for shale gas. The policies of central government related to shale gas development are mainly regarding to the setting of production goals, calculation of government subsidies, administration of taxes and fees, handling of market access, mineral classification of shale gas, and publishing of the shale gas industry standard (Table 1). keywords: china; development; energy; exploration; gas; gas development; gas exploration; industry; national; resources; shale; shale gas; states; united; water cache: esrj-74390.pdf plain text: esrj-74390.txt item: #188 of 261 id: esrj-75426 author: Fan, Cunhui; Qin, Qirong; Liang, Feng; Fan, Zenghui; Li, Zhi title: Fractures in Volcanic Reservoir: a case study of Zhongguai uplift in Northwestern Margin of Junggar Basin, China date: 2018-07-01 words: 4609 flesch: 50 summary: As such, the study of development periods and genetic mechanisms of tectonic fractures could throw useful information regarding the evaluation and development of that reservoir. Tectonic fractures originated from tectonism constitute the main seepage paths and reservoir spaces in the volcanic reservoirs. keywords: area; carboniferous; development; fracture; gas; oil; permeability; reservoir; rock; stress; volcanic; zhongguai; ° ± cache: esrj-75426.pdf plain text: esrj-75426.txt item: #189 of 261 id: esrj-76187 author: Wang, Zhongyu; Zhang, Huayong; He, Xing; Jiang, Qi; Xu, Weigang; Tian, Wang title: Effects of vegetation height and relative submergence for rigid submerged vegetation on flow structure in open channel date: 2022-05-11 words: 7475 flesch: 48 summary: The findings of the research may improve the comprehensive understandings of the effects of vegetation heights and 45Effects of vegetation height and relative submergence for rigid submerged vegetation on flow structure in open channel relative submergences of rigid submerged vegetation in open channel and may give some guidance to the practices of river ecological engineering design and management. With the water depths experimentally measured in this research, the difference between the maximum and minimum water depths corresponding to 9 different experimental tests can be calculated with: hd = hmax - hmin (2) Similarly, the formula for the difference between the maximum and minimum flow velocity is: Vd = Vmax - Vdmin (3) RESULTS AND DISCUSSION Effects of vegetation height on relative submergence With the water depths measured in the experiments, the relative submergence at each measurement points can be calculated with Equation (1) corresponding to different vegetation heights. keywords: average; channel; depth; doi; effects; figure; flow; heights; research; submergence; vegetation; vegetation height; velocity; water; water depth cache: esrj-76187.pdf plain text: esrj-76187.txt item: #190 of 261 id: esrj-77206 author: Tapia-Hernández, Edgar; Reddy, Elizabeth A.; Oros-Aviles, Laura Josabeth title: Earthquake predictions and scientific forecast: dangers and opportunities for a technical and anthropological perspective date: 2019-10-01 words: 7783 flesch: 49 summary: Earthquake predictions and scientific forecast: dangers and opportunities for a technical and anthropological perspective. Earth Sciences Research Journal, 23(4), 309-315. DOI: https://doi.org/10.15446/esrj.v23n4.77206 Supporting earthquake risk management with clear seismic communication may necessitate encounters with various popular misapprehensions regarding earthquake prediction. keywords: activity; disaster; doi; earthquake; gas; hazards; magnitude; predictions; public; radon; research; risk; social cache: esrj-77206.pdf plain text: esrj-77206.txt item: #191 of 261 id: esrj-77361 author: Chen, Cheng; Wang, Lei; Chen, Ruozhou; Xing, Fangliang; Chen, Jun title: Temporal-spatial characteristics and path analysis of maritime cyclones in Guangdong coastal areas in the South China Sea date: 2018-10-01 words: 4934 flesch: 64 summary: This study was conducted to analyze the maritime cyclone characteristics in Guangdong coast in the years of 1949 to 2016, including inter-annual variation, the intensity of tropical cyclones, generating location and time, and path direction. The strengths of the tropical cyclones were reduced from central Guangdong coast to the east and the west sides, and the section of Zhanjiang city to Shenzhen city was the most vulnerable to tropical cyclones. keywords: china; city; coastal; cyclones; guangdong; landing; path; sea; south; years cache: esrj-77361.pdf plain text: esrj-77361.txt item: #192 of 261 id: esrj-77362 author: Sun, Hui; Meng, Fanchang; Zhang, Zhihou; Gao, Cheng; Liu, Mingchen title: High-precision Joint 2D Traveltime Calculation for Seismic Processing date: 2018-10-01 words: 5764 flesch: 59 summary: Currently, traveltime calculation methods can mainly be divided into three kinds, including ray-based methods, finite difference methods, and new ray tracing methods based on graph processing techniques. Joint traveltime calculation method greatly improves the calculation accuracy of the source’s surrounding area and the calculation accuracy of FMM. keywords: band; calculation; calculation method; fmm; grid; method; model; nodes; ray; seismic; sun; traveltime; traveltime calculation; wfc cache: esrj-77362.pdf plain text: esrj-77362.txt item: #193 of 261 id: esrj-77379 author: Li, Run; Jian, Wenbin; Kang, Rongtao title: Study on Fatigue Life of Fractured Rock Under Constant Amplitude Cyclic Loading date: 2018-10-01 words: 3865 flesch: 56 summary: S f 1 represents the normalized value of rock fatigue limit, and it is obtained according to the ratio between the fatigue limit and the static strength of rock. Compared with other materials, the researches on rock fatigue are relatively limited at home and abroad, and rock fatigue is still one of the important lucubrate problems in rock engineering. keywords: curve; fatigue; fatigue life; life; limit; loading; rock; specimens; stress; test cache: esrj-77379.pdf plain text: esrj-77379.txt item: #194 of 261 id: esrj-77869 author: Patinha, Carla; Kasemodel, Mariana Consiglio; Ferreira da Silva, Eduardo Anselmo; Rodrigues, Valéria Guimarães; Marques, Jéssica Pelinsom title: Adsorption of lead (Pb) in strongly weathered tropical soil (Ribeira Valley region - Brazil) date: 2019-10-01 words: 11718 flesch: 61 summary: Batch type procedures for estimating soil adsorption of chemicals. Controls on accumulation and soil solution partitioning of heavy metals across upland sites in United Kingdom (UK). keywords: adsorption; brazil; capacity; cec; clay; concentration; content; environmental; et al; langmuir; ribeira; soil; solution; surface; são; tropical cache: esrj-77869.pdf plain text: esrj-77869.txt item: #195 of 261 id: esrj-78727 author: Cui, Kai; Sheng, Hang title: Effects of granular shape on shear modulus and damping ratio of gravel date: 2019-01-01 words: 4229 flesch: 52 summary: Experimental study of factors influencing dynamic shear modulus and damping ratio of dam inverted filler. Dynamic shear modulus of undisturbed soil under different consolidation ratios and its effects on surface ground motion. keywords: angular; confining; gravel; pressure; ratio; round; sample; shape; shear; shear modulus cache: esrj-78727.pdf plain text: esrj-78727.txt item: #196 of 261 id: esrj-78750 author: Wang, Bo; Liu, Shengdong; Jin, Biao; Qiu, Wanyong title: Fine Imaging by Using Advanced Detection of Reflected Waves in Underground Coal Mine date: 2019-01-01 words: 4501 flesch: 48 summary: However, in the process of calculating eigenvalues and eigenvectors and setting filtering function, corresponding relations between XYZ coordinate axes and P, SH, SV directions are usually artificially, without considering the corresponding relationship between the principal polarization direction of real-time particle in each receiver and propagation direction of seismic wave, which makes the results of unclean separation of P- and S-waves in the roadway. Research and analysis of forward prediction technology using seismic reflection wave in tunnel and laneway in China. keywords: detection; direction; figure; filtering; imaging; method; migration; polarization; time; tunnel; wave cache: esrj-78750.pdf plain text: esrj-78750.txt item: #197 of 261 id: esrj-78805 author: Sun, Ke; Tang, Shuheng; Zhang, Songhang; Xi, Zhaodong; Li, Jun title: The magma thermal field and the shallow-level gas accumulation of tight gas reservoirs in the middle-eastern parts of the Qinshui Basin date: 2019-01-01 words: 6937 flesch: 51 summary: In this study, the metal-non-metal mineral gas-water hydrothermal concept is used to analyze the movement channels of magmatic heating water. Further, the concept of fractures-faults-cracks microfissures hierarchical configuration of the movement channels of magmatic heating water is proposed. keywords: basin; eastern; gas; heating; heating water; hydrocarbon; magmatic; middle; parts; qinshui; qinshui basin; rocks; source; stage; thermal; water cache: esrj-78805.pdf plain text: esrj-78805.txt item: #198 of 261 id: esrj-78880 author: Negri, Cassio Vinícius Carletti; Segantine, Paulo Cesar Lima title: Estimation of GPS L2 Signal Observables Using Multilayer Perceptron Artificial Neural Networks for Positional Accuracy Improvement date: 2020-01-01 words: 5912 flesch: 50 summary: Estimation of GPS L2 signal observables using Multilayer Perceptron Artificial Neural Network for positional accuracy improvement. ABSTRACT Estimation of GPS L2 signal observables using Multilayer Perceptron Artificial Neural Network for positional accuracy improvement Estimación de los observables de señal GPS L2 utilizando redes neuronales artificiales de perceptrón multicapa para mejorar la precisión posicional ISSN 1794-6190 e-ISSN 2339-3459 https://doi.org/10.15446/esrj.v24n1.78880 keywords: ann; artificial; carrier; data; eesc; figure; gps; model; network; neural; observables; positioning; test; training cache: esrj-78880.pdf plain text: esrj-78880.txt item: #199 of 261 id: esrj-78990 author: Yang, Longwei; Wang, Wenpei; Zhang, Nan; Wei, Yunjie title: Characteristics and Numerical Runout Modeling Analysis of the Xinmo Landslide in Sichuan, China date: 2020-04-01 words: 9856 flesch: 58 summary: Therefore, it is very necessary to study the stability of old landslides in populated areas, calculate the scope of disaster mitigation for old landslides, and take the corresponding measures to prevent similar disasters. Additionally, the scraping effect of the landslide was quantitatively analyzed and the scraping depth was calculated across a range of 3 m to 10 m during landslide movement. keywords: accumulation; analysis; avalanche; body; china; debris; distance; figure; frictional; geological; landslide; mass; model; movement; rock; sliding; source; wang; xinmo landslide; zone cache: esrj-78990.pdf plain text: esrj-78990.txt item: #200 of 261 id: esrj-79537 author: Li, Jingxian ; Yu, Xuexiang ; Chen, Deshu ; Fang, Xinjian title: Research on the establishment of a mining subsidence prediction model under thick loose layer and its parameter inversion method date: 2021-07-19 words: 7900 flesch: 57 summary: W x W W x S W x D SPIM PIM PIM PIM PIM ° ( ) = × The specific steps of calculating mining subsidence prediction parameters with the ICSA are shown in Figure 3. Test by simulated working face A simulated working face is designed so as to test the stability and reliability of the ICSA and compare its accuracy with the CSA and the GA,. keywords: coal; error; face; gm gm; gm parameters; icsa; layers; method; mining; mining subsidence; model; parameters; pim; subsidence; value; working cache: esrj-79537.pdf plain text: esrj-79537.txt item: #201 of 261 id: esrj-79728 author: Viloria Ávila, Tony Jesús; Pesantez, Adriana; Vázquez Silva, Efrén; Delgado, Ernesto Manuel; Duque, Paola; Sajo-Bohus, Laszlo title: Levels of radium-226 in the rainbow trout, macroinvertebrates-substrates and water adjacent to the mining concession Loma Larga, Azuay-Ecuador date: 2020-01-01 words: 5188 flesch: 56 summary: Water samples Collection of surface water samples Obtaining water samples was carried out by the immersion method, following the protocol established for the Pylon AB6 detector (Pylon Electronics Inc., 2015). The levels of dissolved 226Ra activity in river waters are related to the composition of the soil and the physical and chemical properties of the waters. keywords: 226ra; concentration; ecuador; irquis; levels; matrices; mining; portete; rainbow; river; sampling; trout; water cache: esrj-79728.pdf plain text: esrj-79728.txt item: #202 of 261 id: esrj-79957 author: Xie, Jiatong; Qin, Qirong; Fan, Cunhui; Hu, Dongfeng; Li, Hu title: The quantitative prediction of tectonic fractures of Longmaxi formation in Dingshan area, southeastern Sichuan Basin date: 2019-04-01 words: 5154 flesch: 54 summary: (4) Binary method: The rock breaking value represents the possibility of tectonic fracture development, and the energy value represents the size of the ability for tectonic fractures to develop. Therefore, when predicting the tectonic fracture distribution in this study, the research outcomes of Ding (1998) and Xingui Zhou et al. were used to comprehensively consider these two methods—the rock breaking method and the energy method—and a “binary method” was proposed (the extent of tectonic fracture development is jointly determined by two aspects—the rock breaking rate and the strain energy density); the rock breaking rate represents the possibility of tectonic fracture development, and the strain energy density represents the size of the ability for tectonic fractures to develop. keywords: area; breaking; density; development; dingshan; energy; formation; fracture; longmaxi; method; prediction; rock; value cache: esrj-79957.pdf plain text: esrj-79957.txt item: #203 of 261 id: esrj-80156 author: Liu, Yaoning; Liu, Shucai; Li, Maofei; Liu, Xinming; Guo, Weihong title: Influence of metal roadway supports on transient electromagnetic detection in mines date: 2021-04-16 words: 4251 flesch: 57 summary: Thus, when the abnormal body is at the same position, observed 113Influence of metal roadway supports on transient electromagnetic detection in mines longer observation time is required in the presence of metal support. ABSTRACT Influence of metal roadway supports on transient electromagnetic detection in mines Influencia de los soportes metálicos en la calzada para la detección de electromagnetismo transitorio en minas ISSN 1794-6190 e-ISSN 2339-3459 https://doi.org/10.15446/esrj.v25n1.80156 keywords: electromagnetic; j j; j n; metal; support; transient cache: esrj-80156.pdf plain text: esrj-80156.txt item: #204 of 261 id: esrj-80895 author: Shang, Fuhua; Cao, Maojun ; Wang, Caizhi title: Application of Artificial Intelligence in Lithology Recognition of Petroleum Logging in Low Permeability Reservoirs date: 2021-07-19 words: 5658 flesch: 38 summary: Lithology identification methods based on laser-induced breakdown spectroscopy technology. In this paper, the application of artificial intelligence technology to low permeability reservoir oil logging lithology identification is proposed. keywords: artificial; data; figure; identification; intelligence; lithology; lithology identification; logging; method; parameters; permeability; pore; recognition; reservoirs; rock cache: esrj-80895.pdf plain text: esrj-80895.txt item: #205 of 261 id: esrj-81087 author: Alcalde-Aparicio, Sara; Vidal-Bardán, M.; Alonso-Herrero, E. title: Mineralogy and geochemical signatures as indicators of differential weathering in natural soil profiles from the West Asturian-Leonese Zone (NW Iberia) date: 2022-05-11 words: 11234 flesch: 50 summary: Keywords: geochemical relations; soil profiles; differential weathering; Plagioclase Index of Alteration (PIA); albite acid hydrolysis; Mineralogía de arcillas y señales geoquímicas como indicadores rápidos de procesos de meteorización química diferencial en una litosecuencia silícea de perfiles de suelos Este trabajo presenta resultados mineralógicos detallados junto con una caracterización geoquímica para una secuencia de seis perfiles de suelos naturales. This fact has been explained by some authors for weathering soil profiles from the Iberian massif (Molina et al., 1990; Vicente et al., 1991; Vicente et al., 1997; Molina & Cantano, 2002; Jiménez- Espinosa et al., 2007; Núñez & Recio 2007; Fernández-Caliani & Cantano 2010; Doval et al., 2012). keywords: al2o3; albite; alteration; chemical; clay; et al; figure; indices; k2o; kaolinite; minerals; na2o; pia; processes; profiles; rocks; samples; series; soil; sp-1; table; weathering cache: esrj-81087.pdf plain text: esrj-81087.txt item: #206 of 261 id: esrj-81615 author: Shi, Chaoyang ; Zhang, Zhen title: A prediction method of regional water resources carrying capacity based on artificial neural network date: 2021-07-19 words: 8559 flesch: 43 summary: Evaluation index of water resources system (1) Water resources per unit area (Cheng et al., 2018) (10000 m3 / km2): water resources per unit area refers to the ratio of the total water resources in the current year to the total land area of the region. According to the regional water resources quantity and utilization characteristics and evaluation emphasis, the evaluation index system of water resources carrying capacity is constructed to evaluate the importance and correlation of water resource carrying capacity. keywords: area; capacity; carrying; carrying capacity; county; development; evaluation; gdp; index; layer; network; neural; prediction; rate; total; value; water consumption; water resources; zhaozhou cache: esrj-81615.pdf plain text: esrj-81615.txt item: #207 of 261 id: esrj-81669 author: Shi, Xin; Di, Yuan title: GPU Parallelization Nested Decomposition Method for Solving Large Linear Systems in Reservoir Numerical Simulation date: 2019-07-01 words: 7664 flesch: 54 summary: After the mesh is dyed, the initial structure of the diagonal elements is first sorted by color number (that is, the elements whose subordinate color numbers are small are always in front of the elements with large numbers), the same color is internally sorted according to the core number, and the same core is internally meshed according to the grid. The preprocessor selection of CPR two stages is MPNF method. keywords: algorithm; block; color; cpr; grid; iterations; linear; matrix; method; mpnf; number; order; parallel; pressure; solution cache: esrj-81669.pdf plain text: esrj-81669.txt item: #208 of 261 id: esrj-81809 author: Feng, Wei title: Virtual Display System of Geological Body Based on Key Algorithms of Three-dimensional Modelling date: 2019-07-01 words: 3564 flesch: 41 summary: It is necessary to obtain borehole data, distribution data of boreholes and strata, and the description of the global bottom, which lays a theoretical foundation for the follow-up study of geological virtual display system. However, due to the late start of three-dimensional geological modelling technology in China, the lack of geological data, and the complexity, fuzziness and uncertainty of geological spatial distribution and structure, it is difficult to study three- dimensional geological modelling and visualization (Zhao, Wang, & Martinez, 2018). keywords: algorithm; body; data; display; information; modelling; ontology; system; virtual cache: esrj-81809.pdf plain text: esrj-81809.txt item: #209 of 261 id: esrj-82815 author: Suárez Silgado, Sindy Sofía; Calderon Valdiviezo, Lucrecia Janneth; Mahecha Vanegas, Leandro Fernando title: Application of life cycle assessment (LCA) methodology and economic evaluation for construction and demolition waste: a Colombian case study date: 2021-10-27 words: 10161 flesch: 48 summary: Construction waste: an option for soil recovery (Residuos de la construcción: una opción para la recuperación de suelos). Stone materials from construction waste. keywords: assessment; categories; cdw; companies; construction; cycle; demolition; demolition waste; earth; ibagué; impacts; landfill; life; management; process; recycling; stone; study; waste; waste management cache: esrj-82815.pdf plain text: esrj-82815.txt item: #210 of 261 id: esrj-82831 author: Candeiro, Carlos Roberto; Brusatte, Stephen; Queiroz, Glayce; Carvalho, Adelino; Maia, Débora; Dias, Tamires; Vidal, Luciano; Gomes, Musa Maria Nogueira ; Barros, Lucas Marques title: Late Cretaceous Bauru Group biota from Southern Goiás state, Brazil: history and fossil content date: 2021-01-26 words: 6987 flesch: 59 summary: Exposição: Dinossauros do Brasil Central, um primeiro olhar sobre os dinossauros dos estados de Goiás e Mato Grosso. Vertebrados fósseis do estado de Goiás, com ênfase em sua fauna de amniotas, compreendida entre o Período Permiano e a Época Pleistoceno. keywords: bauru; candeiro; cretaceous; et al; formation; fossil; goiás; goiás state; group; indet; marília; state cache: esrj-82831.pdf plain text: esrj-82831.txt item: #211 of 261 id: esrj-83340 author: Dana, Kamal; Nezafati, Nima; Vossoughi Abedini, Mansuor title: Study of involved fluids and geochemistry of rare earth elements of Aghbolagh copper deposit, in North Oshnavieh, West Azerbaijan Province of Iran date: 2020-04-01 words: 7928 flesch: 54 summary: Values of Rare earth Elements of Aghbolagh Ore deposit Samples and Ratios Between Rare earth Elements for Conditions Evaluation of Ore Formation Sample A qS G 2 A qS G 6 A qG T SH 2 A qS N S8 A qE PS H 4 A qS E S1 0 A qG O 20 A qS H S9 A qE P2 3 A qS E S7 LREE La-Nd ppm 2.12 50.56 84.06 154.74 121.88 114.48 24.21 127.37 47.62 121.54 MREE Sm-Tb ppm 0.28 2.77 4.42 14.95 7.11 8.72 1.34 11.06 5.12 13.79 HREE Er-Lu ppm 1.1 1.91 2.37 9.24 4.58 4.09 3.34 6.76 2.24 10.54 ∑REE (La-Lu) ppm 3.5 55.24 90.85 189.93 133.57 127.29 28.89 145.19 54.98 145.87 (Ln/Lu)n 1.30 12.61 17.53 14.28 15.58 2.60 5.77 6.49 11.69 2.60 La/Y 0.15 1.77 2.27 1.38 1.89 1.76 1.71 1.29 1.12 0.95 Eu/Eu* 14.12 1.68 1.29 0.76 0.75 0.62 1.53 0.96 0.93 0.76 (La/Sm)n 62.90 7.13 7.65 4.28 6.35 3.94 9.21 4.48 3.57 3.14 (La/Yb)n 2.25 16.37 20.23 6.45 9.67 10.11 2.89 7.64 9.74 3.55 (Gd/Yb)n 0.08 0.59 1.05 0.92 0.04 0.24 0.78 8.48 1.40 0.81 (Pr/Yn)n 0.11 3.57 5.25 3.18 4.16 5.12 0.50 3.41 3.85 1.97 Sample A qE X SH 1 A qG A E P A qS M 3 A qS M 17 A qS M 18 A qV 15 A qV 16 A qV T 8 A qV T 9 LREE La-Nd ppm 5.23 31.83 5.43 21.53 5.43 49.35 2.03 4.23 25.31 MREE Sm-Tb ppm 0.9 5.47 0.2 2.97 0.4 1.74 0.2 0.33 2.46 HREE Er-Lu ppm 4.11 2.64 0.22 0.72 0.74 0.85 0.22 0.42 2.95 ∑REE (La-Lu) ppm 10.24 39.94 5.85 25.22 6.57 51.94 2.45 4.98 30.72 (Ln/Lu)n 1.30 10.39 5.19 6.49 8.62 19.48 1.04 3.90 11.42 La/Y 0.53 0.67 0.53 0.27 2.24 0.32 0.48 0.78 Eu/Eu* 1.84 0.87 14.12 0.66 5.34 3.64 14.12 5.77 0.89 (La/Sm)n 4.27 1.20 125.81 2.28 17.97 7.93 50.32 31.45 6.12 (La/Yb)n 0.75 1.69 44.95 33.71 13.48 50.57 17.98 10.11 4.12 (Gd/Yb)n 0.85 1.37 0.01 0.76 1.06 0.20 0.81 0.12 0.34 (Pr/Yn)n 0.01 1.22 1.71 3.94 0.51 15.85 1.71 0.26 0.96 Figure 11. The examination of fluid inclusions determined two main groups of fluids in this mineralization system. keywords: aghbolagh; deposit; figure; fluid; formation; garnet; inclusions; liquid; mass; minerals; ore; phase; phase inclusions; quartz; salinity; sample; skarn; temperature cache: esrj-83340.pdf plain text: esrj-83340.txt item: #212 of 261 id: esrj-84008 author: Zhou, Hongsheng; Wang, Yunsheng; Shen, Tong; Feng, Qianqian title: The Comprehensive Treatment of the Ancient Landslide Deformable Body in the Giant Deep Rock Bedding based on the FLAC Analysis Model date: 2019-10-01 words: 4697 flesch: 48 summary: In order to study the comprehensive treatment of the deformable body of the ancient landslide in the giant deep rock bedding better, the treatment of JM tunnel landslide deformable body was selected to carry on the empirical study. Deformation and cracks of tunnel landslide in Jimei 305The Comprehensive Treatment of the Ancient Landslide Deformable Body in the Giant Deep Rock Bedding based on the FLAC Analysis Model Furthermore, assuming that the velocity component of node was ui, then the constant strain triangular element was obtained on the basis of the Gauss’s theorem: ∂υ ∂x A u n s i i i s = ∑1 ∆ (2) keywords: analysis; body; condition; construction; deformable; deformation; engineering; landslide; model; sliding; slope; treatment; tunnel cache: esrj-84008.pdf plain text: esrj-84008.txt item: #213 of 261 id: esrj-84100 author: Jian, Jinfeng; Chen, Huanzhen title: Advance of research on the numerical simulation of sediment transport in the Yellow River estuary date: 2019-10-01 words: 4415 flesch: 38 summary: Considering the influence of turbulence, tidal current, wave and the assumption of hydrostatic pressure distribution, By performing Reynolds average, wave period average and water depth average on the three- dimensional sediment transport model, a planar two-dimensional sediment transport model composed of hydrodynamic model (water flow continuous equation, water flow movement equation) and sediment transport model (sediment continuous equation, riverbed deformation equation) can be obtained (Yang, 1993; Dou, Dong, Dou & Li, 1995; Cao & Wang, 1993). Advance of research on the numerical simulation of sediment transport in the Yellow River estuary. keywords: element; finite; mathematical; method; model; numerical; river; sediment; sediment transport; simulation; transport; water cache: esrj-84100.pdf plain text: esrj-84100.txt item: #214 of 261 id: esrj-84113 author: Pan, Xin; Guo, Ying; Liu, Ziyuan; Zhang, Zikai; Shi, Yuxiang title: Impact of different standard lighting sources on red jadeite and color quality grading date: 2019-10-01 words: 6378 flesch: 63 summary: The light color of D65 light source distributes more uniformly, allowing red color of jadeite more objective and more similar to that under sunlight, which is suitable for the jadeite evaluation. Spectrum of D65 light source, CWF light source and A light source The color temperature of A light source (2856K) is lower than that of D65 light source (6504K), and its energy in the long-wave red zone is obviously higher than that in the short-wave blue-purple zone with overall light color of yellowish as a whole. keywords: color; cwf; d65; difference; fancy; grading; guo; jadeite; light; light source; ranges; red; samples; source; standard cache: esrj-84113.pdf plain text: esrj-84113.txt item: #215 of 261 id: esrj-84340 author: Wang, Yang; Li, Jun; Wang, Xuben; Jian, Xingxiang title: Inversion Technique of Physical Parameters Based on Regularization Extension Depth Constraint date: 2019-10-01 words: 3167 flesch: 46 summary: +0 1 (5) Formula 5 is the forward formula of field source gravity anomaly with known physical parameters. Magnetic source gravity anomaly of sphere model Figure 4. keywords: anomaly; continuation; depth; field; gravity; model; parameters; regularization; source cache: esrj-84340.pdf plain text: esrj-84340.txt item: #216 of 261 id: esrj-84350 author: Zhu, Danyao; Wan, Luhe; Gao, Wei title: Fusion Method Evaluation and Classification Suitability Study of Wetland Satellite Imagery date: 2019-10-01 words: 4407 flesch: 42 summary: Quantitative evaluation According to the above quantitative evaluation indexes, with the support of ENVI/IDL8.5, The eigenvalues of fusion images obtained by the three fusion algorithms used in this study are extracted, and the calculated results are shown in Table 2. Descending Means of fusion image: NND fusion image > GS fusion image > PC fusion image. keywords: accuracy; classification; fusion; fusion image; image; information; nnd; results; wetland cache: esrj-84350.pdf plain text: esrj-84350.txt item: #217 of 261 id: esrj-84394 author: He, Yunlan; Wang, Xikai; Sun, Hongjie; Xing, Zhenguo; Chong, Shan; Xu, Dongjing; Feng, Feisheng title: Coal Seam Roof: Lithology and Influence on the Enrichment of Coalbed Methane date: 2019-10-01 words: 4421 flesch: 58 summary: Wave impedance is the product of the propagation velocity of a sound wave in rock and the density of the rock, and it can be used to identify the lithology. However, sandstone and mudstone cannot be distinguished simply by wave impedance and can be influenced by many factors. keywords: coal; gas; impedance; methane; rock; roof; sandstone; seam; velocity; wave cache: esrj-84394.pdf plain text: esrj-84394.txt item: #218 of 261 id: esrj-84631 author: Mo, Jianghong ; Tian, Xinling ; Shen, Wei title: Tracing the source of heavy metal pollution in water sources of Tourist Attractions Based on GIS remote sensing date: 2021-07-19 words: 9420 flesch: 45 summary: In order to trace the sources of heavy metal pollution in water sources of scenic spots more quickly and conveniently, it is necessary to calibrate the data of heavy metal pollution sources in water sources of scenic spots on the basis of the compilation of watershed geographic information. Tracing of heavy metal sources and mobility in a soil depth profile via isotopic variation of Pb and Sr. Catena, 171, 440-449. keywords: attractions; coefficient; concentration; diffusion; direction; metal pollutants; metal pollution; metals; migration; pollutants; pollution source; sources; tourist; tracing; variation; water source cache: esrj-84631.pdf plain text: esrj-84631.txt item: #219 of 261 id: esrj-84838 author: Wang, Wei; Yu, Caili; Zhao, Le; Xu, Shuang; Gao, Lei title: Combining SEM and Mercury Intrusion Capillary Pressure in the characterization of pore-throat distribution in tight sandstone and its modification by diagenesis: A case study in the Yanchang Formation, Ordos Basin, China date: 2020-01-01 words: 6859 flesch: 57 summary: RCP can examine pore spaces and throats spaces separately according to the oscillation of intrusion pressures (Yuan and Swanson, 1989) but cannot reveal the distribution of tiny throats due to the limited maximum intrusion pressure (6.22 MPa) (Wang et al., 2018; Zhao et al., 2015). Comparison of low-field NMR and mercury intrusion porosimetry in characterizing pore size distributions of coals. keywords: content; distribution; intrusion; mercury; pcp; pore; pressure; rcp; samples; sandstone; space; throat cache: esrj-84838.pdf plain text: esrj-84838.txt item: #220 of 261 id: esrj-85206 author: Zhang, Qian title: Study on Optimization Method of Spatial Structure Characteristics of Peak Forest Landform in Wulingyuan Scenic Area date: 2020-01-01 words: 7682 flesch: 45 summary: The spatial pattern of peak forest landscape in Wulingyuan Scenic Area was analyzed by using various landscape indices. By using GIS and digital topographic analysis to study the basic features of sandstone peak forest landform, Wulingyuan peak forest landform and karst peak forest have great differences in lithological composition, as the weathering resistance is better than Cheltenham Badland landform; by using tree theory to analyze the features of Wulingyuan peak forest landform, according to area weight serialization of contour tree nodes, we can know the depression area. keywords: area; artificial; characteristics; development; forest landform; landform; landscape; meters; node; patch; patches; peak forest; rock; sandstone; sandstone peak; structure; study; vegetation; wulingyuan; wulingyuan peak cache: esrj-85206.pdf plain text: esrj-85206.txt item: #221 of 261 id: esrj-85231 author: Zhang, Hongzhou title: Study on the Internal Force of Geomembrane of Landfill in Heavy Metal Contaminated Area date: 2020-01-01 words: 5508 flesch: 59 summary: The influence of landfill height on the maximum tensile stress of Geomembrane Conclusion Based on the softening model of interface strength between Geomembrane and clay, the equilibrium equation of Geomembrane force is established, and the analytical solution of tension stress and displacement of Geomembrane is obtained. Firstly, according to the internal force analysis of Geomembrane model, the basic equation of Geomembrane is obtained, and the equation is analyzed by finite difference numerical solution, so as to analyze the internal force of Geomembrane in a landfill. keywords: displacement; geomembrane; interface; strength; stress; u p; u u;   cache: esrj-85231.pdf plain text: esrj-85231.txt item: #222 of 261 id: esrj-85366 author: Jiang, Chanjun; Wang, Youxue; Zeng, Gaofu title: Group Velocity Measurements of Earthquake Rayleigh Wave by S Transform and Comparison with MFT date: 2020-01-01 words: 3227 flesch: 61 summary: When the period is greater than 15 s, especially than 40 s, S transform has higher accuracy than MFT at all epicenter distances. When the period is less than or equal to 15 s, the accuracy of S transform is lower than that of MFT at epicentral distances of 1000 km and 8000 km (especially 8000 km), and the accuracy of such two methods is similar at the other epicentral distances. keywords: group; mft; rayleigh; transform; wave cache: esrj-85366.pdf plain text: esrj-85366.txt item: #223 of 261 id: esrj-85486 author: Wu, Guopeng; Chen, Wenwu; Cui, Kai title: The numerical simulation of Influence of Drying-wetting Cycles on the Deterioration Characteristics of Gypsum Rocks under Particle Flow Code date: 2020-01-01 words: 4039 flesch: 49 summary: Particle flow model of gypsum rocks When establishing the particle flow model of gypsum rock, because the macro-mechanical parameters of the model are affected by the number and size of gypsum rock particles, it is necessary to take into account the effect of RES (resolution) on the macro-mechanical parameters at the minimum scale of the model. As can be seen from the figure below, the cumulative water absorption of gypsum rock samples increases with the increase of wet and dry cycles. keywords: absorption; characteristics; cycles; deterioration; gypsum; gypsum rocks; pore; rocks; water; water absorption cache: esrj-85486.pdf plain text: esrj-85486.txt item: #224 of 261 id: esrj-85531 author: Bi, Taifu title: Optimal Allocation Algorithm of Geological and Ecological High-resolution Remote Sensing Monitoring Sampling Points date: 2020-01-01 words: 4264 flesch: 55 summary: Similarly, the MABO value of IBING algorithm was 65.36%, while the DR/MABO value of BING algorithm was 63.21%, indicating that the quality of candidate boxes extracted from remote sensing images by the improved algorithm was higher. In remote sensing image technology, target detection sampling point is one of the difficulties in remote sensing monitoring for geological ecological monitoring system. keywords: algorithm; bing; candidate; detection; image; remote; resolution; sensing cache: esrj-85531.pdf plain text: esrj-85531.txt item: #225 of 261 id: esrj-87003 author: Tunalioglu, Nursu; Altuntas, Cemali title: An experimental test for detecting effective reflector height with GPS SNR data date: 2022-05-11 words: 6730 flesch: 55 summary: The behavior of the signals of the GNSS satellites, which acts as high-flying fixed points at 15An experimental test for detecting effective reflector height with GPS SNR data an average altitude of 20200 km, is influenced during the propagation in the various layers of the atmosphere (delay in the signals in the ionosphere and troposphere). To detect the effective reflector heights on the site using GPS SNR data, a decrement as 10 cm assuming a vertical displacement occurred as an effect of changing the vertical distance was applied to both reflectors established on the stations. keywords: chc; data; elevation; elk1; elk2; gps; height; larson; multipath; signal; snow; snr; topcon cache: esrj-87003.pdf plain text: esrj-87003.txt item: #226 of 261 id: esrj-87228 author: Wang, Jianmin; Xie, Dongping title: GPS elevation fitting study based on ternary polynomial regression date: 2020-04-01 words: 3086 flesch: 56 summary: 3.73 21.0146 1.68 15 21.0076 21.0401 3.25 21.0093 0.17 16 21.0639 21.0721 0.8 21.0622 -0.17 17 21.0710 21.0733 0.23 21.0555 -1.55 18 21.0516 21.0868 3.52 21.0829 3.13 19 21.0138 21.0518 3.8 21.0389 2.51 204 Jianmin Wang, Dongping Xie From the results in Table 4, it can be seen that the fitting effect of seven- parameter ternary polynomial regression is better than that of three-parameter ternary polynomial regression. At present, through the research of some scholars, the methods of fitting GPS elevation data can be roughly divided into two categories. keywords: elevation; fitting; gps; height; method; point; regression cache: esrj-87228.pdf plain text: esrj-87228.txt item: #227 of 261 id: esrj-87248 author: Liu, Rui title: Research on Control Method of Pollutant Total Amount of Water Quality based on Fuzzy Mathematics date: 2020-04-01 words: 8918 flesch: 58 summary: The work plays a key role in establishing the input response relationship between pollution sources and the target of water quality control. Confirming the target of water quality control The main purpose is to determine the target of water quality control of the functional areas in the upstream sewage control area and downstream transition area. keywords: area; control; discharge; evaluation; membership; model; pollutant; pollution; s s; sewage; total; water; water quality;   cache: esrj-87248.pdf plain text: esrj-87248.txt item: #228 of 261 id: esrj-87364 author: Tang, Jinhui; Lou, Feng title: LA-ICP-MS Zircon U-Pb dating of Early Jurassic granite basement in Chagan Area of the Northest Guangdong and its geological implications date: 2020-04-01 words: 5850 flesch: 68 summary: LA-ICP-MS Zircon U-Pb dating of Early Jurassic granite basement in Chagan Area of the Northeast Guangdong and its geological implications. ABSTRACT LA-ICP-MS Zircon U-Pb dating of Early Jurassic granite basement in Chagan Area of the Northeast Guangdong and its geological implications Aplicación del método LA-ICP-MS y datación U-Pb en granitos de basamento de principios del Jurásico en el área de Chagan, en el noreste de Guangdong (China) keywords: age; basin; dating; early; granite; icp; jurassic; ratio; zircon cache: esrj-87364.pdf plain text: esrj-87364.txt item: #229 of 261 id: esrj-87441 author: Shanshan, Jia; Yanqing, Zhou title: Ecological Compensation Method for Soil Polluted by Heavy Metals Based on Internet of Things date: 2020-04-01 words: 7047 flesch: 49 summary: This process provided the basis for the ecological compensation standard of soil heavy metal pollution area. The standard of soil compensation and the amount of soil added in the study area are shown in Table 6. keywords: area; compensation; data; ecological; forest; hardware; internet; land; metals; method; operating; pollution; soil; system; things cache: esrj-87441.pdf plain text: esrj-87441.txt item: #230 of 261 id: esrj-87920 author: Liu, Bin; Jiang, Xiugen title: Consolidation and Deformation Characteristics of Soft Rock Foundation in Hydrological Wetland Environment date: 2020-04-01 words: 6010 flesch: 46 summary: The characteristics of soft rock and soil deformation with time under load easily lead to uneven settlement and excessive post-construction settlement of roadbed built on soft rock foundation (Zhang et al., 2019; Zhang & Wang, 2018). Consolidation and deformation characteristics of soft rock foundation in hydrological wetland environment are affected by many factors, such as physical and mechanical properties of soft rock and soil, sludge thickness of hydrological wetland, loading capacity, loading mode and field environment (Xu et al., 2017; Kotani et al., 2017). keywords: consolidation; deformation; embankment; figure; foundation; pore; pressure; rock; rock foundation; settlement; soil; variation; water; water pressure; wetland cache: esrj-87920.pdf plain text: esrj-87920.txt item: #231 of 261 id: esrj-87932 author: Wang, Suling; Wang, Xuefei; Chen, Minzhan; Xie, Wenqi; Zhang, Ziheng; Yang, Lei title: Shear Damage Mechanism and Early Warning Study of Shale Standard Layer Casing date: 2020-04-01 words: 4109 flesch: 52 summary: The simulation results are compared with actual logging results of Daqing Oilfield, the rationality of the numerical model is verified and a simulation method of standard casing damage is proposed. Keywords: casing damage; shear deformation; numerical simulation; critical strain; early warning. keywords: casing; casing damage; damage; deformation; layer; model; plastic; standard; strain cache: esrj-87932.pdf plain text: esrj-87932.txt item: #232 of 261 id: esrj-87956 author: Xu, Aimei title: Remote Monitoring System of Geological Exploration in Lava Area Based on GPS date: 2020-04-01 words: 6750 flesch: 47 summary: A V V f x=   ( ){ }min ,max ,1 1 (1) Where, 1 1≤ ≤ ( )V n f x, , , f (x) is the distribution density function of the reliability of remote monitoring data for geological exploration in the lava area. Considering that  is bigger in the monitoring data sequence with gross errors,  is taken as double- difference variance in the processing of remote monitoring data of geological exploration in the lava area. keywords: analysis; data; error; exploration; gps; lava area; module; monitoring; monitoring data; monitoring system; reliability; remote; survey; system; technology; value cache: esrj-87956.pdf plain text: esrj-87956.txt item: #233 of 261 id: esrj-89450 author: Li, Jing; Cai, Zhongyuan; Duan, Lianru title: Spatial Distribution Characteristics and Optimum Layout of Urban and Rural Areas in Different Geomorphological Types date: 2020-10-12 words: 8300 flesch: 34 summary: This work is supported by National Natural Science Foundation of China, Study on the green construction of rural settlement units in northwest China (51678481); Shaanxi provincial education department special research project (17JK0460); Xi’an university of architecture and technology, 2019 special research fund for new urbanization, (general items); Xi’an Polytechnic University, the project of General project of philosophy and social science (2019ZXSK02). Traffic trunk lines often become the guide of settlement development and evolution. keywords: areas; basin; characteristics; county; development; distribution; distribution characteristics; elevation; environment; guangnan; jinghe; jinghe river; karst; landform; loess; plateau; river; river basin; settlements; spatial; structure; town cache: esrj-89450.pdf plain text: esrj-89450.txt item: #234 of 261 id: esrj-89513 author: Hou, Jikun; Luo, Xingqi; Zhang, Lei title: Establishment of Evaluation Model for Shallow Geothermal Energy Resource Development Potential Based on Characteristic of Geotemperature date: 2020-10-12 words: 7850 flesch: 47 summary: Suitability zoning of groundwater ground source heat pump in Weinan City From the charts, we can see that the suitability of groundwater source heat pumps is obviously different due to the difference of hydrogeological characteristics. In order to study the validity of calculation and evaluation for the heat-exchange power and potential of groundwater ground source heat pumps in Weinan City, it is necessary to carry out practical analysis. keywords: area; development; energy; evaluation; geothermal; ground source; ground temperature; groundwater; groundwater source; heat pump; km2; potential; source heat; suitability; system; temperature; utilization cache: esrj-89513.pdf plain text: esrj-89513.txt item: #235 of 261 id: esrj-89819 author: Gökdaş, Ömer; Özlüdemir, Mustafa Tevfik title: Effects of the Continuously Operating Reference Station (CORS) network on the accuracy, precision, and Time to Fix Ambiguity (TTFA) performance date: 2022-09-08 words: 5185 flesch: 55 summary: In addition to CORS-TR, local CORS networks such as ISKI CORS network have been put into service in Turkey. Acknowledgements The authors would like to thank the Istanbul Water and Sewerage Administration for providing full access to ISKI CORS network data and Topnet Live software. keywords: accuracy; cors; cors network; figure; iski; network; pasa; reference; software; solution; station; ttfa; vrs cache: esrj-89819.pdf plain text: esrj-89819.txt item: #236 of 261 id: esrj-90111 author: Li, Jingxian; Yu, Xuexiang; Liang, Ya title: A prediction model of mining subsidence in thick loose layer based on probability integral model date: 2020-10-12 words: 4968 flesch: 47 summary: Assuming that the main influence radius in the original probability integral method model is r0, r1 is smaller than r0, and r1 mainly controls the position of the inflection point, r2 mainly controls the degree of boundary convergence. A prediction model of mining subsidence in thick loose layer based on probability integral model. keywords: coal; influence; integral; method; mining; model; probability; radius; subsidence; surface cache: esrj-90111.pdf plain text: esrj-90111.txt item: #237 of 261 id: esrj-90290 author: Xu, Aimei; Azarkhosh, Hojatallah; Wu, Erjun title: Monitoring Method of Longitudinal Land Subsidence and Deformation in Seismic Geological Disasters date: 2020-10-12 words: 6116 flesch: 41 summary: Distributed optical fiber monitoring technology is based on BOTDA (Brillouin Optical Time-Domain Analysis) monitoring technology. The experimental results are compared and analyzed to verify the feasibility of distributed optical fiber sensing technology in land subsidence monitoring (Kim et al., 2016). keywords: conditions; data; deformation; fiber; ground; land subsidence; longitudinal; method; monitoring; sensing; soil; subsidence; subsidence deformation; technology; vertical; working cache: esrj-90290.pdf plain text: esrj-90290.txt item: #238 of 261 id: esrj-90432 author: Jiang, Yudong; Luo, Jinming; Azarkhosh, Hojatallah; Wu, Erjun title: The switching control method for the nonlinear response of seismic surface based on the local T-S model date: 2020-10-12 words: 5997 flesch: 57 summary: When the controller has additive perturbation, the convergence speed of the state response of the method in this paper is fast and stable, which shows the accuracy of the method in this paper for the switching control of seismic surface nonlinear response. In addition to the application of this paper in the study of switching control of seismic surface response, it can also be applied to the air-to-air vehicle, for example. keywords: = =; control; controller; method; model; nonlinear; response; surface; switching; switching control cache: esrj-90432.pdf plain text: esrj-90432.txt item: #239 of 261 id: esrj-91114 author: Hou, Chaoyong ; Cai, Houan ; Pei, Senlong title: The SHRIMP U-Pb isotope dating of Mesozoic volcanic from Zhangwu-Heishan Area, West Liaoning Province, China date: 2021-01-26 words: 5339 flesch: 66 summary: Meanwhile, the researches on the stratigraphy, paleo-geography, paleoclimate, and paleomagnetism of the Mesozoic volcano-sedimentary basin in west Liaoning Province are gradually performed (Pan et al., 2001; Zhang et al., 2002; Zhu et al., 2001 & 2002; Gong et al., 2007; Li et al., 2002; Ren, 1997). For instance, whether volcanic rock in Yixian Formation is of late Jurassic Epoch (Wang, 1987; Ren et al., 1997; Wang, 1998; Luo et al., 1999), late Jurassic to early Cretaceous Epoch (Zhang et al., 1992; Chen et al., 1998; Ji et al., 1998; Sun & Zheng, 2000; Jiang et al., 2000; Wang et al., 2002) or early Cretaceous Epoch (Li et al., 2001; Wang et al., 1999; Wang et al., 2001; Xu et al., 1999; Ji et al., 2002; Wang et al., 2005; Zhang et al., 2006) is an open question. keywords: abstract; basalt; china; chinese; english; et al; liaoning; sihetun; volcanic; wang; yixian; zhang cache: esrj-91114.pdf plain text: esrj-91114.txt item: #240 of 261 id: esrj-91378 author: Xie, Xiaoping ; Fang, Xinqiu ; Liang, Minfu ; Ai, Dechun title: Geological evolution process, mechanism, and application of protective layer in semi-coal and rock face date: 2021-01-26 words: 6351 flesch: 53 summary: Keywords: Semi-coal rock; Geological Evolution; Non-coal pillar; Distressed blind-zone; Gas extraction. Layout of the 22201 working face of semi-coal rock 504 Xiaoping Xie, Xinqiu Fang, Minfu Liang, Dechun Ai for head-on construction. keywords: coal; coal seam; deformation; face; layer; mining; pillar; pressure; roadway; rock; seam; stress; width; working; zone cache: esrj-91378.pdf plain text: esrj-91378.txt item: #241 of 261 id: esrj-91473 author: Fan, Yang; Lifeng, Liu ; Qiquan, Ran; Jinping, Kong; Mengya, Xu; Jiaxin, Dong title: The characteristics of unconventional tight oil reservoir and its modification technology and productivity prediction date: 2021-01-26 words: 4783 flesch: 51 summary: The zonal productivity prediction model of volume fractured horizontal wells in tight reservoirs is established in this study based on the physical model of volume fractured horizontal wells to study the near-well seepage law of volume fractured horizontal wells in unconventional tight reservoirs. The application example of volume fractured horizontal wells in Lucaogou tight reservoir shows that the zonal productivity model established in this study can be used to predict the initial productivity of volume fractured horizontal wells. keywords: fracture; fracturing; pressure; production; productivity; reservoir; tight; volume; wells cache: esrj-91473.pdf plain text: esrj-91473.txt item: #242 of 261 id: esrj-91593 author: Yan, Xiaotong ; Wang, Shun; Wang, Ningwei title: Analysis and Evaluation Methods of Seismic Subsidence Characteristics of Loess and Field Seismic Subsidence date: 2021-01-26 words: 4511 flesch: 50 summary: Methodology Characteristics and influencing factors of loess seismic subsidence The main mechanism, disaster development mode, and disaster types of loess seismic subsidence are influenced by the material index of soil, topographic characteristics of loess field, and earthquake. It can be observed that the seismic subsidence coefficient produced by loess soil is proportional to A B keywords: coefficient; content; density; figure; loess; ratio; relationship; soil; strain; stress; subsidence; water cache: esrj-91593.pdf plain text: esrj-91593.txt item: #243 of 261 id: esrj-91626 author: Li, Juan ; Liu, Wei ; Zhang, Xinxin title: Evaluation algorithm of alhagi sparsifolia desertification control under different irrigation amounts date: 2021-01-26 words: 7455 flesch: 41 summary: ABSTRACT Evaluation algorithm of alhagi sparsifolia desertification control under different irrigation amounts Algoritmo de evaluación para el control de la desertificación del alhagi sparsifolia bajo diferentes cantidades de riego ISSN 1794-6190 e-ISSN 2339-3459 https://doi.org/10.15446/esrj.v24n4.91626 El control de la desertificación es un tema importante que debe considerarse en la sociedad moderna. There are significant differences in vegetation 451Evaluation algorithm of alhagi sparsifolia desertification control under different irrigation amounts (3) Principle of specific indicator operability The ecological benefit index should reflect the environmental benefits brought by the grassland desertification control project in a comprehensive and systematic way. keywords: alhagi; area; control; data; desertification; desertification control; evaluation; grassland; grassland desertification; index; indexes; process; project; sand; soil; sparsifolia; vegetation;   cache: esrj-91626.pdf plain text: esrj-91626.txt item: #244 of 261 id: esrj-92069 author: Miao, Jianjun; Lu, Qian title: An empirical study on the potential of land resources utilization in urban agglomeration development zones based on combination analysis date: 2021-01-26 words: 7844 flesch: 39 summary: Combined with the actual situation of land use in high-tech zone and the characteristics of sustainable land use in the county and referring to the evaluation standards of sustainable land use in China and abroad, an evaluation system of sustainable land use with the overall goal of sustainable land use in a high-tech zone is finally established, which includes four criteria levels: land-use level, resource security, economic feasibility, and social acceptability, as shown in Table 1. In conclusion, the evaluation results of sustainable land use in the high- tech zone are as follows: ① the rationality of land use in the area is relatively high, and the index continues to rise during the evaluation period, from 0.48 in 2014 to 0.81 in 2018, which is at a sustainable high level. keywords: area; combination; development; development zone; evaluation; factors; high; index; industrial; land; land area; land use; natural; potential; rate; tech; tech zone; use; years; zone cache: esrj-92069.pdf plain text: esrj-92069.txt item: #245 of 261 id: esrj-92151 author: Zhang, Yunxiang ; Wang, Bin; Zhang, Lei title: High-precision GPS measurement method without geographical restrictions using crowd-sensing technology date: 2021-01-26 words: 6108 flesch: 56 summary: DOI: https://doi. org/10.15446/esrj.v24n4.92151 In order to improve the flexibility of GPS measurement, a high-precision GPS measurement method that is not restricted by the geographical location under crowd-sensing technology was proposed. Sensing data may leak the privacy and sensitive information of the users, so a reasonable privacy protection mechanism must be designed to ensure the privacy of the users while completing data collection as much as possible. keywords: acquisition; crowd; data; frequency; gps; information; measurement; method; network; satellite; sensing; signal; system cache: esrj-92151.pdf plain text: esrj-92151.txt item: #246 of 261 id: esrj-92387 author: Huang, Yanyan title: Destruction process and restoration countermeasures of the ecological environment of a comprehensive geological structure date: 2021-01-26 words: 6375 flesch: 35 summary: Considering the geological structure of the mining area, from the perspective of the four problems shown in the table, the damage of mining to the ecological environment was analyzed, and then corresponding countermeasures for ecological environment restoration were proposed. No vegetation lake score 10 8 6 4 Land use Grading Arable land Woodland Grassland Bare ground Desert Swamp Water body score 9 8 7 6 2 2 4 Population density Grading <100 100-300 300-500 500-1000 >1000 score 2 4 6 8 10 Average annual rainfall Grading <100 100-300 300-700 700-1000 1000-4000 score 10 8 6 4 2 Geological hazard types Grading Landslides, mudslides Ground collapse Soil erosion Snowfall, freeze-thaw Medium Strong Medium Strong Medium Strong Medium Strong score 5 10 5 10 5 10 5 10 Geological disaster Score 10 8 6 4 2 frequency ≥10 5-9 3-4 1-2 0 Economic losses >100 10-100 1-10 0.1-1 ≤0.1 Casualties ≥10 5-9 3-4 1-2 0 Sphere of influence >1 0.1-1 0.01-0.1 0-0.01 0 Occupation and destruction of land resources Score 10 8 6 4 2 Occupied land area >1 0.5-1 0.1-0.5 0.01-0.1 ≤0.01 Area of occupied land >0.5 0.1-0.5 0.01-0.1 0-0.01 0 waste water disposal Score 10 8 6 4 2 Annual emissions >1 0.1-1 0.01-0.1 0-0.01 0 Solid waste discharge Score 10 8 6 4 2 Accumulated stock >10 1-10 0.1-1 0.01-0.1 ≤0.01 Wastewater toxicity Score 10 2 toxicity poisonous Non-toxic Groundwater equilibrium damage Score 10 8 6 4 2 Drainage area >1 0.1-1 0.01-0.1 0-0.01 0 435Destruction process and restoration countermeasures of the ecological environment of a comprehensive geological structure Where, S represents the productivity value of forest resources in the resource extraction area, n is constant, qi represents the area of the plant in i years, wi represents the increase in the unit area of forest resources, ei represents the price of net income per unit area of plant resources such as forests,  represents the price growth rate; L indicates the value of scientific research and tourism, ri indicates the benefits of scientific research and tourism brought by the unit forest, Ui represents the forest area for ecological environment restoration; H represents the average annual storage value, ti represents the average price of building a reservoir per square meter, yi indicates the amount of water stored before the restoration of the ecological environment,  represents the price increase factor; D represents the value of biodiversity, i indicates the ecological value of the unit area of the ecological environment, ci indicates the area of ecological environment restoration; Jis the value of degrading pollutants, miindicates the treatment cost per unit of pollutant, bi is the amount of pollutants degraded in the surrounding area after the restoration of the ecological environment.  is price growth rate. keywords: area; changes; countermeasures; damage; destruction; development; economic; environment; evaluation; land; mining; process; protection; resources; restoration; structure; surface; water cache: esrj-92387.pdf plain text: esrj-92387.txt item: #247 of 261 id: esrj-93184 author: Wang, Shuilin ; Liu, SongYong ; Meng, Fanping title: Fault diagnosis mechanism of gears and bearings for coal mining equipment in a complex geological environment date: 2021-04-16 words: 6976 flesch: 52 summary: According to the yield strength value, the critical value of functional failure of gear bearing capacity is confirmed. Represents the static tensile strength of a variable material. keywords: area; bearing; calculation; coal; data; diagnosis; equipment; fault; figure; formula; gear; geological; method; mining; value cache: esrj-93184.pdf plain text: esrj-93184.txt item: #248 of 261 id: esrj-93320 author: Wang, Zhongjie ; Lin, Min title: Finite Element Analysis Method of Slope Stability based on Fuzzy Statistics date: 2021-04-16 words: 6228 flesch: 53 summary: According to the American api code, the friction force f EI d= / of soft clay to the unit area of rock soil slope is not greater than the undrained shear strength cu of soft clay; the maximum end resistance stress (soil reaction at the bottom of slope) is 9cu. Finite element analysis of the stability of rock soil slope The key factor to determine the stability of rock soil slope is the embedment of foundation soil. keywords: analysis; calculation; displacement; element; finite; model; rock; rock slope; rock soil; slope structure; soil slope; stability; stress; structure; value cache: esrj-93320.pdf plain text: esrj-93320.txt item: #249 of 261 id: esrj-93700 author: Xiong, Yiying title: Correlation analysis between multifractal characteristics of regional geomorphology and development of geological disasters date: 2021-04-16 words: 5977 flesch: 37 summary: Combined with the above-mentioned spatial relationship of geological disaster development and the multifractal characteristic data of regional landforms, the correlation coefficient between the two is calculated to complete the correlation analysis between the multifractal characteristics of regional geomorphology and the development of geological disasters. Analysis of spatial relationship of geological disaster development Before analyzing the spatial relationship of geological hazard development, 12 geological points are selected first, and then the geological hazard is divided into landslide, collapse and debris flow by using the fractal characteristic parameters of landform and the spatial distribution characteristic parameters of geological point landslide hazard. keywords: analysis; characteristics; correlation; development; disasters; geomorphic; geomorphology; multifractal; number; regional cache: esrj-93700.pdf plain text: esrj-93700.txt item: #250 of 261 id: esrj-93725 author: Lv, Yan ; Lu, Laijun ; Cao, Mengxue title: Tracing method of Rare Earth Elements in surrounding rock of geological formation based on three-dimensional positioning algorithm date: 2021-04-16 words: 7071 flesch: 46 summary: v25n1.93725 Because of the interference of mass spectrum and non-mass spectrum, the tracing accuracy of rare earth elements in the surrounding rock of geological formation is low. Pretreatment of test sample reagent, dissolution of test sample residue, characterization of rare earth element doped materials, analysis of mass spectrometry and non-mass spectrometry interference in rare earth element tracking, using three-dimensional positioning algorithm to track rare earth elements in geological strata surrounding rock. keywords: determination; earth; earth elements; elements; heating; interference; mass; matrix; method; microwave; rock; sample; solution; standard; table; time; value cache: esrj-93725.pdf plain text: esrj-93725.txt item: #251 of 261 id: esrj-93896 author: Guo, Lin; Zhang, Xiaocun ; Chen, Yao ; Liu, Jun title: Remediation of High Concentration Chromium Contaminated Soil by Enhanced Electrodynamic Method date: 2021-07-19 words: 6387 flesch: 42 summary: After investigation, the pollution characteristics of excessive chromium in soil are as follows: from the analysis of valence state, the content of Cr (III) in soil chromium pollution is significantly higher than that of Cr (VI), the content of Cr (VI) in chromium residue site is only more than ten percent of Cr (III); from the analysis of morphology, the proportion of residual chromium is the largest. In the process of electrooxidation, there is still a lot of research space in the form of Cr (III) oxidized by potassium permanganate and the change of soil Cr form after electrooxidation. keywords: chromium; concentration; electrokinetic; iii; oxidation; permanganate; potassium; potassium permanganate; prb; reaction; remediation; residue; soil cache: esrj-93896.pdf plain text: esrj-93896.txt item: #252 of 261 id: esrj-93925 author: Zhang, Yannan ; Liang, Chuan title: Application of remote sensing technology in the analysis of periodic precipitation change in China’s Northern semi-arid area date: 2021-04-16 words: 6853 flesch: 46 summary: Among them, the maximum peak corresponds to the time scale of 50a, indicating that the cycle oscillation of about 50a is the strongest, which is the first main cycle of precipitation change in four areas; The 20a time scale corresponds to the second peak, which is the second main cycle of annual precipitation change; The third peak corresponds to the time scale of 14a, which is the third main cycle; The fourth peak corresponds to the time scale of 37a, which is the fourth main cycle; The fifth peak corresponds to the time scale of 6a, which is the fifth main period. Lan Yongchao et al. studied the impact of climate change on the water resources system in the upper reaches of the Yellow River; Xu Yueqing et al. studied the law of precipitation change in Hebei Plain based on wavelet analysis; Lin Zhenyao et al. studied the temporal and spatial characteristics of temperature and precipitation change in the Qinghai Tibet Plateau; Dai Xingang et al. studied the multi-scale characteristics of precipitation in flood season and the inter-generational decay characteristics of summer monsoon in North China Levy. keywords: 50a; arid; changchun; change; china; figure; harbin; oscillation; period; precipitation; precipitation change; term; time; wavelet; years cache: esrj-93925.pdf plain text: esrj-93925.txt item: #253 of 261 id: esrj-93927 author: Pinzón, Luis A.; Hidalgo-Leiva, Diego A.; Moya-Fernández , Aarón; Schmidt-Díaz, Victor; Pujades, Luis G. title: Seismic site classification of the Costa Rican Strong-Motion Network based on VS30 measurements and site fundamental period date: 2022-02-07 words: 4329 flesch: 55 summary: 1 Research Division, Universidad Católica Santa María La Antigua, Panama City, Panama 2 Earthquake Engineering Laboratory, Universidad de Costa Rica, San Jose, Costa Rica 3 Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya, Barcelona, Spain Keywords: Site classification; site fundamental period; shear-wave velocity; Costa Rica; HVSR; Vs30 Palabras clave: Clasificación de sitio; período fundamental de sitio; velocidad promedio de la onda de corte; Costa Rica; relaciones horizontales/ verticales; Vs30 ISSN 1794-6190 e-ISSN 2339-3459 https://doi.org/10.15446/esrj.v25n4.93927 EARTH SCIENCES RESEARCH JOURNAL Earth Sci. Res. Several parameters have been used as proxy to define the seismic site conditions based on the topography, geology, site fundamental period (or frequency) and shear-wave velocity of the soil profile. keywords: classification; costa; fundamental; period; seismic; site; soil; stations; vs30 cache: esrj-93927.pdf plain text: esrj-93927.txt item: #254 of 261 id: esrj-94076 author: Wang, Xuli title: Fractal characteristics of geomorphological heterogeneity in Xisha Islands waters under Multiple Linear Regression date: 2021-04-16 words: 7524 flesch: 51 summary: Fractal dimension calculation results of Xisha Islands water area based on projection coverage method Measuring order The correlation coefficient (r2) Geomorphic fractal dimension 1 0.9915 2.0142 2 0.9923 2.0254 3 0.9902 2.0326 4 0.9922 2.0534 5 0.9908 2.0575 6 0.9908 2.0654 7 0.9907 2.0664 8 0.9914 2.0818 9 0.9908 2.0745 Note: 9 significance tests were all extremely significant. Fractal characteristics of geomorphological heterogeneity in Xisha Islands waters under Multiple Linear Regression. keywords: characteristics; dimension; fractal; landforms; las; linear; method; projection; research; scale; shidao water; surface; water; water area; xisha islands cache: esrj-94076.pdf plain text: esrj-94076.txt item: #255 of 261 id: esrj-94162 author: Chen, Rong title: Application of UAV-Low Altitude Remote Sensing System in Sea Area Supervision date: 2021-04-16 words: 2747 flesch: 47 summary: Given this, this study proposes to use Aeronaves No Tripuladas (UAV) instead of artificial, using UAV remote sensing technology to detect islands in the sea area, hoping to provide a particular reference for the current sea area detection and supervision work. This study will detect the coastline of islands by UAV remote sensing technology. keywords: area; gps; image; method; remote; sea; sensing; study; uav cache: esrj-94162.pdf plain text: esrj-94162.txt item: #256 of 261 id: esrj-94403 author: Fateh, Hamid; Toube, Ahmad ; Gholipuri, Abdul Qayum title: Wheat physiological traits response in standard and ecological agricultural systems date: 2021-04-16 words: 4267 flesch: 46 summary: Higher soil capacity to retain moisture in ecological agricultural systems, especially biological systems, has been discussed in several sources (Lotter et al., 2003; The first factor, which was considered the main plot, consisted of high-input, low-input, and ecological agricultural systems. keywords: agricultural; effect; input; photosynthesis; priming; seed; system; transpiration; water; wheat; year cache: esrj-94403.pdf plain text: esrj-94403.txt item: #257 of 261 id: esrj-94786 author: Topçu, Emre title: Drought Monitoring Using MOWCATL Data Mining Algorithm in Aras Basin, Turkey date: 2022-09-08 words: 8351 flesch: 61 summary: The study results revealed that the antecedent parameters were ineffective in detecting arid conditions in Ardahan and Doğubeyazıt stations, and they were influential on drought conditions, especially in a-SPI-3 and a-SPI-12 month periods at other stations. Meteorological drought is the primary type, which is the impetus behind other droughts, bringing about a decrease in the normal long term precipitation. keywords: algorithm; antecedent; aras; basin; conditions; consequent; data; drought; index; mining; mowcatl; precipitation; rules; spi12(4; spi3(4; study; table; time cache: esrj-94786.pdf plain text: esrj-94786.txt item: #258 of 261 id: esrj-95060 author: Ilci, Veli; Sisman, Yasemin title: A Modelling Study by Factorial Design on GNSS Positioning date: 2022-02-07 words: 5518 flesch: 52 summary: The main results of the study can be summurazed as follows; • R2 values were satisfactory (98.56% for CORS horizontal, 92.91% for CORS vertical positioning errors). • Season (X1) and Season*DOP (X1*X3) effects of factors were insignificant on CORS vertical positioning errors at the 5% level. keywords: application; cors; data; design; effects; errors; factorial; factors; gnss; gps; horizontal; levels; positioning; study; vertical cache: esrj-95060.pdf plain text: esrj-95060.txt item: #259 of 261 id: esrj-95321 author: Calero Mosquera, Daniela; Hoyos Villada, Fanny ; Torres Prieto, Enrique A. title: Runoff Curve Number (CN model) Evaluation Under Tropical Conditions date: 2022-02-07 words: 6727 flesch: 52 summary: Runoff Curve Number (CN model) Evaluation Under Tropical Conditions Daniela Calero Mosquera, Fanny Hoyos Villada, Enrique Torres Prieto Universidad Nacional de Colombia *Corresponding author: dcalerom@unal.edu.co Keywords: flow; hydrology; rainfall; Runoff Curve Number (CN model) Evaluation Under Tropical Conditions. keywords: antecedent; cn model; cnq; curve; data; et al; events; hawkins; micro; model; moisture; rainfall; runoff; scs; soil; watershed cache: esrj-95321.pdf plain text: esrj-95321.txt item: #260 of 261 id: esrj-96209 author: Verma, Omkar; Prashanth, M; Greco, Roberto; Khosla, Ashu; Singh, Kulwant title: Geological education scenario in India and role of open educational resources in the light of COVID-19 pandemic date: 2022-11-29 words: 15262 flesch: 45 summary: Geological education: why it is important in India? Indian geological education has many strategies for meeting the varied needs of society, addressing the economic growth of the country using natural resources, and refining basic and applied principles of Geology (Sharma, 1998; Radhakrishna, 2005; Sheth, 2007; Jain et al., 2016; Mandal, 2016; Mukherjee et al., 2016; Mazumder et al., 2019; Parsons et al., 2020). Development of Indian higher geological education The study of geological phenomena in India had been recorded from time immemorial when Indians started to observe and record the behavior of Earth’s natural processes. keywords: country; covid-19; data; degree; development; earth; education; field; geological; geology; geoscience; india; learners; learning; master; oer; online; open; origin; pandemic; programs; research; resources; science; teaching; tlr; university; use; verma cache: esrj-96209.pdf plain text: esrj-96209.txt item: #261 of 261 id: esrj-96985 author: Ali, Arshad; Shahid, Muhammad S.; Jabeen, Iffat; El-Ghali, Mohamed A.K. title: Life on Mars (LoMars): History, advances, current research, and perspectives date: 2022-11-29 words: 7303 flesch: 51 summary: Thus far, the USA has dominated in the number of citations and collaborations related to Mars research, given its facilities equipped with relevant infrastructure and researchers’ capacity to explore the Solar System beyond Earth. With the exciting current and future developments in Mars research and prospects of human habitability on Mars, it is vital to evaluate the history and impact of the research on LoMars using statistical (i.e., bibliometric) methods. keywords: articles; authors; citations; figure; journal; life; lomars; mars; martian; nasa; number; publications; research; rover; science; space cache: esrj-96985.pdf plain text: esrj-96985.txt