Results 51 to 60 of about 3,034 (213)

Large Anomalous Hall Effect, Non‐Vanishing Berry Curvature in (110) FeRh Antiferromagnet Films via Interface Strain

Advanced Science, EarlyView.
This study demonstrates a strain‐tunable anomalous Hall response in the (110)‐oriented FeRh thin film. First‐principles calculations reveal that strain‐induced symmetry lowering redistributes Berry curvature near the Fermi level via band shifts and avoided crossings.
Yun‐Ho Kim, Gil‐Sung Kim, Jae Won Choi, Jung‐Min Cho, Won‐Yong Lee, Hongkee Yoon, Yeonho Choi, Shelby Fields, Steven Bennett, Mona Zebarjadi, Young‐Gui Yoon, Sang‐Kwon Lee   +11 more
wiley   +1 more source

Analysis of High-speed EMUs Noise Source

, 2015
To improve riding comfort and optimize noise insulation design for high-speed EMUs, the noise source was analyzed, and noise value of high-speed EMUs typical position passenger room was introduced. Noise source under different speed was discussed and indicated mainly from wheel-track noise and pneumatic noise. When the speed of vehicle was under 200 km/
XU Li, WANG Zhichun, ZHOU Jianfeng
openaire   +1 more source

Study on Traction Converter for PMSM Traction System of High-speed EMU

机车电传动, 2020
The traction system, power circuit, fault protection, structure, dissipate heat for the permanent magnet synchronous motor (PMSM) of high-speed EMU were studied and analyzed on basis of the features of PMSM traction system.
Dangbing ZOU, Da LIU, Yi DING
doaj  

Biocompatible Magnetopyroelectric Composite Films for Cell Stimulation

Advanced Science, EarlyView.
Magnetopyroelectric films couple Fe3O4 nanoparticles with pyroelectric P(VDF‐TrFE) to turn alternating magnetic fields into controlled heat and pyroelectric currents. This heavy‐metal free platform safely boosts neural progenitor cells differentiation via synergistic thermal and pyroelectrical cues, engages AKT and calcium pathways, and opens practical
Hao Ye, Joaquin Llacer‐Wintle, Semih Sevim, Elric Zhang, Denis von Arx, Lukas Hertle, Martina Accursi, Minsoo Kim, Josep Puigmartí‐Luis, Bradley J. Nelson, Xiang‐Zhong Chen, Salvador Pané   +11 more
wiley   +1 more source

Service Performance Tracking Research on High-speed EMUs

, 2017
Along with the operation of more passenger dedicated lines, the service environment of domestic high-speed trains becomes more complex, which brings new challenge to the safe and reliable operation of China high-speed trains. For researching the service performance of high-speed trains under the complex service environment, long service performance ...
BAI Yanchao, AN Chao, LI Minggao, LIN Jianhui, LI Qiang   +4 more
openaire   +1 more source

An Intelligent Loading System for Freight EMU ContainerBased on Genetic Algorithm

Kongzhi Yu Xinxi Jishu, 2020
When running speed of high-speed freight EMU exceeds 250 km/h, wheel pressure difference caused by uneven load could lead to hidden danger of operation safety.
YANG Shuai, WANG Baochao, GUAN Xin, NAN Guangxi   +3 more
doaj  

Tuning Li+ and Na+ Functionality in Renewable Carbon Electroactive Material Through Site‐Specific Nanostructural Disorder

Advanced Science, EarlyView.
This study presents a selective thermal transformation of polycarbonate into hybrid carbon materials. The structured carbon enhances electrochemical performance, particularly in lithium‐ion systems. Investigations reveal improved bimetallic ion diffusivity through the hybrid microstructure, contributing to excellent charge kinetics.
Montajar Sarkar, Rumana Hossain, Jian Peng, Dilan Kumara Thilakarathna, Yu Wang, Yin Yao, Neeraj Sharma, Veena Sahajwalla   +7 more
wiley   +1 more source

Tunable Charge Transport Properties Through Precise π‐Stacking Modulation in Isostructural Porous Molecular Conductors

Angewandte Chemie, EarlyView.
An intrinsic structure–property relationship in through‐space conductive MOFs is investigated using a series of counterion‐free porous molecular conductors (PMC‐3) with carrier‐doped π‐stacked columns. The constant carrier density and halide‐dependent tunable π‐stacking geometry in PMC‐3 enable the discovery of a linear correlation between the lattice ...
Liyuan Qu, Hiroaki Iguchi, Kenta Ueno, Shinya Takaishi, Masahiro Yamashita, Chanel F. Leong, Deanna M. D'Alessandro, Takao Tsumuraya, Wakana Matsuda, Shu Seki, Ryotaro Matsuda   +10 more
wiley   +2 more sources

Gate Enhancing Charge‐Spin Conversion in Organic Chiral Field Effect Transistors

Advanced Science, EarlyView.
Room‐temperature organic chiral multiferroic field effect transistors are demonstrated, enabling bidirectional control between spin and charge. Specifically, spin polarization affects the ferroelectric polarization, and ferroelectric polarization, in turn, can modulate spin polarization and spin‐dependent transport.
Shilin Li, Renjie Hu, Xiangping Zhao, Xi Wang, Wei Qin   +4 more
wiley   +1 more source

Sensors Burned Cause Analysis of High-speed EMUs

, 2014
In order to solve the malfunctions of bogie gear-box temperature sensor, axle head speed sensor, and axle temperature sensor for breakdown by high voltage at operation process of CRH380BL trains, the EMUs grounding system was studied, and a simple grounding model was built and analyzed, which gave the malfunctions solutions and provided grounding ...
ZHANG Qiumin, WANG Xinghua, HAO Mingyuan, WANG Yanqin, LI Ying   +4 more
openaire   +1 more source