نتایج جستجو برای: electric current distribution

تعداد نتایج: 1454952  

One of the big concerns of big cities is facing with the increase of fossil fuel vehicles in the roads. The cars intensify greenhouse gas emission in civic centers. One approach to reduce the emission is replacing the cars by Plug-In Electric Vehicles (PEVs). In spite of reducing the emission, PEVs have some adverse effect on electric distribution networks. Technical challenges such as load and...

2016
Si-Wen Xiao Chao Wang Zhi-Peng Zhou

In process of AC square wave submerged arc welding, electric signal waveform determines the arc energy characteristics in the time and frequency domain, which also reflects the arc stability of welding proc ess and quality indirectly. Using Wigner-Ville distribution (WVD), time frequency analysis is conducted to the current signal of AC square wave submerged arc welding. The Pseudo Wigner-Ville...

Journal: :Transactions of the American Institute of Electrical Engineers 1888

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
abdolrahman showkatbakhsh dept. of orthodontics, school of dentistry, shahid beheshti university of medical sciences, tehran, iran farnaz younessian dentofacial deformities research center, research institute of dental sciences, shahid beheshti university of medical sciences, tehran, iran. omid dianat dept. of endodontic, school of dentistry, shahid beheshti university of medical sciences, tehran, iran. seyed sadra izadi dept. of clinical sciences, faculty of veterinary medicine, university of tehran, tehran, iran. mohammadreza badiee dentofacial deformities research center, research institute of dental sciences, shahid beheshti university of medical sciences, tehran, iran. mehrdad showkatbakhsh phd student of electrical engineering, university of southern california, california, usa.

objectives: the purpose of this study was to evaluate whether intra-canal application of controlled direct electric current (dec) could accelerate the amount of orthodontic tooth movement (otm) in young adult mixed breed dogs. methods: fourth premolars of both jaws of five young adult mixed breed dogs were divided into two groups of control and experimental groups. orthodontic force was applied...

Journal: :Biophysical journal 1998
D Miklavcic K Beravs D Semrov M Cemazar F Demsar G Sersa

Cells exposed to short and intense electric pulses become permeable to a number of various ionic molecules. This phenomenon was termed electroporation or electropermeabilization and is widely used for in vitro drug delivery into the cells and gene transfection. Tissues can also be permeabilized. These new approaches based on electroporation are used for cancer treatment, i.e., electrochemothera...

Journal: :Electric Power Systems Research 2022

This paper proposes a new power flow (PF) formulation for electrical distribution systems using the current injection method and applying Laurent series expansion. Two solution algorithms are proposed: Newton-like iterative procedure fixed-point iteration based on successive approximation (SAM). The convergence analysis of SAM is proven via Banach theorem, ensuring numerical stability, uniquene...

Journal: :Physical review letters 2002
Boris Korenblum Emmanuel I Rashba

The electrical field arising around an inhomogeneous conductor when an electrical current passes through it is not screened, as distinct from 3D conductors, in low-dimensional conductors. As a result, the electrical field depends on the global distribution of the conductivity sigma(x) rather than on the local value of it, inhomogeneities of sigma(x) produce giant capacitances C(omega) that show...

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