Results 1 to 10 of about 908,977 (157)

Series DC Arc Simulation of Photovoltaic System Based on Habedank Model

Energies, 2020
Despite the rapid development of photovoltaic (PV) industry, direct current (DC) fault arc remains a major threat to the safety of PV system and personnel. While extensive research on DC fault arc has been conducted, little attention has been paid to the
Xinran Li, Chenyun Pan, Dongmei Luo, Yaojie Sun   +3 more
doaj   +3 more sources

Research on Modeling and Simulation of Transient Ground Potential Rise Caused by GIS Disconnector Action

南方能源建设, 2022
[Introduction] Massive usage of gas-insulated metal-enclosed switchgear (GIS) has caused serious electromagnetic interference, especially when the isolating switch in GIS is operated with small capacitive current, it does not have arc extinguishing ...
LI Jiahui
doaj   +1 more source

Circuit-Based Mathematical Model of an Arc Heater for Control System Development

IEEE Access, 2021
A novel circuit-based mathematical model of an electric arc heater is presented so that an arc heater system can be modeled, and a control algorithm can be developed and simulated.
Brian R. Brown, Satish M. Mahajan
doaj   +1 more source

Subclasses of Normal Helly Circular-Arc Graphs [PDF]

, 2011
A Helly circular-arc model M = (C,A) is a circle C together with a Helly family \A of arcs of C. If no arc is contained in any other, then M is a proper Helly circular-arc model, if every arc has the same length, then M is a unit Helly circular-arc model,
Bang-Jensen, Bhowmick, Booth, Corneil, Crespelle, Deng, Deogun, Durán, Fishburn, Francisco J. Soulignac, Fulkerson, Gardi, Gavril, Gilmore, Golumbic, Habib, Hedman, Hell, Hell, Hell, Hsu, Huang, Jayme L. Szwarcfiter, Joeris, Kaplan, Kaplan, Korte, Kratsch, Lekkerkerker, Lin, Lin, Lin, Lin, Lin, Lin, Lin, Lin, Looges, McConnell, McKee, Min Chih Lin, Mitas, Müller, Nussbaum, Roberts, Roberts, Skrien, Tucker, Tucker   +48 more
core   +3 more sources

Comparison and analysis of the fault arc characteristics of flexible DC transmission lines

The Journal of Engineering, 2019
VSC-HVDC grid is one of the important development directions of the smart grid in the future. The arc characteristics of transient fault on the transmission line are the theoretical basis for determining reclosing time and reclosing strategy of DC ...
Botong Li, Hanqing Cui, Yichao Liu, Bin Li   +3 more
doaj   +1 more source

Electrical Modelling of Switching Arcs in a Low Voltage Relay at Low Currents

Energies, 2020
The arc behaviour of short, low current switching arcs is not well understood and lacks a reliable model. In this work, the behaviour of an arc in the air is studied during contact separation at low DC currents (0.5 A to 20 A) and for small gap lengths ...
Ammar Najam, Petrus Pieterse, Dirk Uhrlandt   +2 more
doaj   +1 more source

Simulation Study on Surface Temperature Distribution of Collector Strip Material Under Pantograph-Catenary Arc of Urban Rail

IEEE Access, 2023
With the increasing speed of urban rail trains, the vibration between the pantograph collector strip and the contact wire intensifies, and the pantograph-catenary arc occurs frequently, which severely wear the surface materials of the pantograph-catenary.
Xiaoying Yu, Mengjie Song, Ze Wang
doaj   +1 more source

Characteristic analysis of pantograph–catenary detachment arc based on double‐pantograph–catenary dynamics in electrified railways

IET Electrical Systems in Transportation, 2022
With the increase of train speed in electrified railways, the increasingly violent interaction of pantograph–catenary (PC) makes the PC detachment arc an extrusive phenomenon, especially in the double‐pantograph–catenary (DPC) system.
Hongyi Zhou, Zhigang Liu, Jiaming Xiong, Fuchuan Duan   +3 more
doaj   +1 more source

A Regression Model to Predict Augmented Renal Clearance in Critically Ill Obstetric Patients and Effects on Vancomycin Treatment

Frontiers in Pharmacology, 2021
Background: Augmented renal clearance (ARC) risk factors and effects on vancomycin (VCM) of obstetric patients were possibly different from other populations based on pathophysiological characteristics.
Lian Tang, Xin-yuan Ding, Lu-fen Duan, Lan Li, Hao-di Lu, Feng Zhou, Lu Shi, Jian Lu, Yi Shen, Zhi-wei Zhuang, Jian-tong Sun, Qin Zhou, Chen-qi Zhu, Jing-jing Li, Yan-xia Yu   +14 more
doaj   +1 more source

The twisted arc model for chiral molecules [PDF]

, 2007
We present a simple model for chiral molecules which yields the frequency-dependent multipole-multipole polarizabilities required for calculating the dispersive van der Waals constants in a simple, closed, and consistent form.
Balazs, Buckingham, Buckingham, Chan, Chiu, Cina, Craig, Craig, Jenkins, Johannes Trost, Klaus Hornberger, Kondru, Landau, Leuliette-Devin, Mavroyannis, Nolte, Osinga, Pericou-Cayere, Power, Power, Rauk, Rijks, Sears, Stone, Tinoco   +24 more
core   +3 more sources