Results 111 to 120 of about 20,438 (288)

Application and perspectives of multiphase induction motors / Daugiafazių variklių naudojimo sritys ir perspektyvos

Mokslas: Lietuvos Ateitis, 2012
The article considers the areas of applying multiphase induction motors. Their advantages against three phase motors have become the main reason for employing them in multiphase drives.
Benas Kundrotas
doaj   +1 more source

Structural and Mechanical Dynamics of Polymer Membranes Across Multilength Scales

Advanced Science, EarlyView.
Distinct surface‐to‐bulk mechanical contrasts in polymer membranes were unveiled, highlighting the need to probe both regions to fully capture their functional behavior. By integrating in situ SAXS–WAXS with AFM‐based nanomechanics, nanodomain‐level heterogeneity and real‐time structural transformations induced by thermal and mechanical stimuli were ...
Rifan Hardian, Hakkim Vovusha, Yue Yuan, Changxia Shi, Eugene Y.‐X. Chen, Mario Lanza, Gyorgy Szekely   +6 more
wiley   +1 more source

3D‐Printed Aerogel Metamaterials with Multiple Heterogeneous Interfaces Enables Integrated Control of Microwave Field, Acoustic Field, and Thermal Field

Advanced Science, EarlyView.
The Direct‐Ink‐Writing (DIW) 3D‐printed aramid nanofibers (ANF)/carbon nanotubes (CNT)/liquid metal (LM) aerogel metamaterial demonstrates an effective and lightweight strategy to achieve polarization insensitive & ultra‐wideband microwave absorption from 2.65‐18 GHz, broadband noise reduction effect in the 2800‐6400 Hz and thermal suppression ...
Yijie Liu, Kokila Khanal, Weimeng Chu, Sreekanth Ginnaram, Yijing Zhao, Chunlin Jia, Udeshwari Jamwal, Jiaqi Tao, Lvtong Duan, Wentao Yan, Yong Yang   +10 more
wiley   +1 more source

Enhancing Interfacial Dioxygen Bridging Dynamics of Waste‐Derived Cathode Catalysts for Augmented High‐Rate Performance in Li‐O2 Batteries

Advanced Science, EarlyView.
This study fabricates Fine Slag/Ti4O7@TiC hybrids with interfacial dioxygen bridge coupling to optimize oxygen redox dynamics in lithium‐oxygen batteries (LOBs). Lattice distortion from oxygen vacancies and inherent charge repulsion of Ti‐O‐C interfacial coupling reconstruct and refine the surface coordination environment.
Jixiong Zhang, Shuxuan Ma, Hengfeng Liu, Binbin Huo, Yunbo Wang, Zhihui Sun, Kai Zeng   +6 more
wiley   +1 more source

Emerging Technologies for Advanced Power Electronics and Machine Design in Electric Drives

Applied Sciences
The paper presents a comprehensive overview of recent advancements in power electronics and electric machine design, focusing on novel topologies, semiconductor technologies, and integrated design techniques for electric drives.
Andraž Rihar, Mitja Nemec, Henrik Lavrič, Peter Zajec, Danjel Vončina, David Nedeljković, Vanja Ambrožič, Klemen Drobnič   +7 more
doaj   +1 more source

Sensorless speed control of a five-phase induction machine under open-phase condition

The Journal of Engineering, 2014
Recently, multiphase machines have been promoted as competitors to their three-phase counterparts in high-power safety-critical drive applications. Among numerous advantages of multiphase induction machine (IM) drives, self-starting and operation under ...
Ahmed S. Morsy, Ayman S. Abdelkhalik, Shehab Ahmed, Ahmed Mohamed Massoud   +3 more
doaj   +1 more source

PWM strategies fo multilevel multiphase AC drives [PDF]

, 2017
Pulse width modulation (PWM) strategies for multilevel multiphase ac drives have been analysed in this thesis. The large amount of published work in the area of multiphase drives recognises their advantages compared to the standard three-phase solutions.
openaire   +1 more source

Mechanism of Solid Solution‐Driven Texture Induced by Ag Doping in YBCO Superconductor

Advanced Science, EarlyView.
Ag‐doped YBCO with a designed concentration gradient is produced by dual‐material co‐extrusion and freeze‐drying. During annealing, Ag+ ions diffuse into Y123, substituting for Cu(1) and inducing c‐axis relaxation. This leads to the formation of [001]‐oriented YBCAO, creating a coherent interface that templates the textured growth of Y123. Consequently,
Fenyan Zhao, Baoqiang Zhang, Xiyang Su, Yantang Zhao, Xingyi Zhang   +4 more
wiley   +1 more source

Enhanced Photocatalytic CO2 Reduction Performance by External Electric Field‐Driven Charge Separation on Interdigitated Micro‐Spacing Structure

Advanced Science, EarlyView.
An external electric field‐enhanced photocatalytic system is developed using interdigitated electrodes with 100 µm spacing to overcome the liquid‐phase limitations of traditional PEC. The induced high‐intensity electric field effectively drives the directional migration of charge carriers under low voltage. This strategy significantly suppresses charge
Xidan Tang, Zhenyu Yu, Jie Liang, Xiaoguang Wang, Qin Shi, Honghui Pan, Xixiang Liu, Pengyi Tang   +7 more
wiley   +1 more source

Concurrent AI Tuning of a Double-Loop Controller for Multi-Phase Drives

Machines
The control of electric drives is an important topic due to the wide-spread use of such devices. Among these, multi-phase induction machines are gaining momentum in variable-speed applications.
Manuel G. Satué, Federico Barrero, Juana María Martínez-Heredia, Francisco Colodro   +3 more
doaj   +1 more source