Results 41 to 50 of about 524,603 (302)

Study on the Fast Transient Process of Primary Equipment Operation in UHV Fixed Series Capacitors Based on PEEC Method

Sensors
This manuscript proposes a fast transient simulation method based on PEEC to model overvoltage caused by spark gap and disconnecting switch operations in UHV series compensation (FSC).
Baojiang Tian, Kai Xu, Yingying Wang, Pei Guo, Chao Xiao, Wei Han, Yiran Dong, Jingang Wang   +7 more
doaj   +1 more source

The electromagnetic stability analysis of superconducting high-speed maglev system [PDF]

AIP Advances
The electromagnetic stability analysis of electro-dynamic high-speed maglev systems is a key research topic. An electromagnetic stability analysis model of the high-speed superconducting maglev system is introduced. The model could be used to analyze the
Weilai Shang
doaj   +1 more source

Transient Electromagnetic 1-Dimensional Inversion Based on the Quantum Particle Swarms Optimization-Smooth Constrained Least Squares Joint Algorithm and Its Application in Karst Exploration

Advances in Civil Engineering, 2022
Before the construction of the bridge bored pile in the karst area, geological conditions of the excavation area should be investigated. In order to avoid the karst caves in underground space making adverse impacts on the construction, bearing capacity ...
Xue Liu, Chunwei Pan, Fangkun Zheng, Ying Sun, Qingsong Gou   +4 more
doaj   +1 more source

Self‐Sintering Ionogel Binder for Flexible, Recyclable, and Healable Printed Giant Magnetoresistive Sensors

Advanced Functional Materials, EarlyView.
ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo, Xiaotao Wang, Guannan Mu, Proloy Taran Das, Igor Veremchuk, Conrad Schubert, Aaron D. Cross, Yevhen Zabila, Xuan Peng, Larysa Baraban, Denys Makarov   +10 more
wiley   +1 more source

Thermal modeling of the cylindrical electromagnets in transient and steady-state modes

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 2022
Purpose An excessive increase in temperature will reduce the lifespan and even burn the coil. The variety of materials in the structure of the electromagnet along with its multi-layer winding creates a complex and heterogeneous thermal structure. There are very few researches that are completely focused on the thermal analysis of electromagnets.
Ali Hashemi, Parsa Yazdanpanah Qaraei, Mostafa Shabanian   +2 more
openaire   +1 more source

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

Advanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang, Zhewen Xu, Yuwen Xu, Björn Josteinsson, Simon Josephy, Dawei Zhang, Yunlong Sun, Heung‐Sik Park, Jihun Kim, Kanghyun Chu, Kyung Song, Danyang Wang, Chan‐Ho Yang, Andrea Morales, Jan Seidel   +14 more
wiley   +1 more source

Reduced‐order electromagnetic transient model based on equivalent flux linkage derivative for induction motors under voltage sag condition

IET Electric Power Applications
Precise electromagnetic transient simulation of induction motors (IMs) under voltage sag condition is necessary in Electro‐Magnetic Transient Programme. Although traditional fifth‐order model can accurately reflect the electromagnetic transient behaviour
Guangliang Yang, Tongyu Guan, Jinping Kang, Yang Zhan, Guorui Xu, Haisen Zhao   +5 more
doaj   +1 more source

Electromagnetic Transient Modelling and Verifying of Wind Turbine Generator

Zhongguo dianli, 2020
The transient characteristics of wind turbine generator have great influence on the stable operation of renewable energy base and the power grid in the near region, therefore it is of great significance to build accurate wind turbine generator model for ...
Xing ZHANG, Yanxia SUN, Lina LI, Caiyun GAO, Junhua MA, Liping GAO, Keke LIU, Guoqing HE, Guanghui LI   +8 more
doaj   +1 more source

Chiral Phase Change Nanomaterials

Advanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow, Md Shah Alam, Riad Yahiaoui, Evan M. Smith, Ryan Laing, Jules Gardener, Thomas A. Searles, Piyush J. Shah, Shivashankar Vangala, Joshua R. Hendrickson, Andrew M. Sarangan, Imad Agha   +11 more
wiley   +1 more source

Modelling and Operation Analysis of Electromechanical Transient- Electromagnetic Transient Hybrid System

Chemical Engineering Transactions, 2017
The electromechanical-electromagnetism hybrid simulation technology combines the advantages of electromechanical transient simulation and electromagnetic transient simulation. It can coordinate the simulation scale, precision and speed and provide new ideas and ways to study the stability and dynamic of large-scale power system characteristics.
openaire   +2 more sources