id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
alkej-353	Jasim, Haider Hadi	تقويم أداء طلاء الايبوكسي لخزانات مياه الشرب باستخدام طريقة الممانعة الكهروكيميائية الطيفية	2017	10	.pdf	application/pdf	6636	346	58	The impedance can be represented by a modulus Z and a phase angle shift φ: |Z| = �Z��� + Z��� … (7) tanϕ = ������ … (8) The impedance data can be represented by two methods: -Nyquist plot: the imaginary part of impedance This excitation induces a sinusoidal current ∆I having ∆Io amplitude with a phase shift ∅with respect to the applied potential: Δ� = |Δ��| sin(� � − �) … (3) These values of a sinusoidal applied voltage ∆E and a sinusoidal current ∆I can be represented in the complex plane as: ∆� = ∆��� + � ∆��� … (4) ∆I = ∆I�� + i ∆I�� … (5)	cache/alkej-353.pdf	txt/alkej-353.txt