Results 91 to 100 of about 9,614,342 (296)

Thermal performance analysis and optimization of a stator core water-cooling system for high-power-density permanent magnet synchronous motors

Case Studies in Thermal Engineering
The stator core water-cooling structure is an effective thermal solution for high-power-density permanent magnet synchronous motors (PMSMs). However, the additional thermal outlets of circulation loss and eddy loss introduced by the cooling pipes often ...
Keyue Du, Zhicheng Chen, Jia Fu, Zhongjun Yu, Zhaowen Wang   +4 more
doaj   +1 more source

Rotor Eddy Current Loss Calculation of a 2DoF Direct-Drive Induction Motor

Energies, 2019
A two-degree-of-freedom direct-drive induction motor (2DoFDDIM), whose solid rotor is coated with a copper layer, is capable of linear, rotary, and helical motions and has widespread applications.
Wei Wu, Jikai Si, Haichao Feng, Zhiping Cheng, Yihua Hu, Chun Gan   +5 more
doaj   +1 more source

Rare‐Earth–Sulfur Surface Modification Enables SiC Ceramics for Low‐Frequency Electromagnetic Wave Absorption in Extreme Environments

Advanced Science, EarlyView.
By altering surface chemical bonds to prolong relaxation time and shift absorption to lower frequencies, SiC/rare earth–sulfur (RE─S, RE = La, Ce, Pr, Sm, Gd, Er) materials achieve excellent low‐frequency electromagnetic wave absorption under extreme conditions, offering a new direction for designing high‐performance SiC‐based absorbers.
Zhanming Wu, Xiaojun Zeng, Yu‐Nan Tan, Chi Yu, Nuohua Xie, Yanfeng Gao   +5 more
wiley   +1 more source

Study on method of eddy-current-loss suppression and power-factor enhancement of integrated magnetic-field-modulated machine

Xibei Gongye Daxue Xuebao
Integrated magnetic-field-modulated machine is a single-air-gap magnetic-field-modulated machine, which is highly integrated by using the magnetic gear and high-speed permanent-magnet machine.
HUANG Jian, SUN Bixun, YIN Zuosheng, ZHAI Kun, ZHAO Dongdong   +4 more
doaj   +1 more source

Effect of eddy current in shielding plate and electron gun on flux distribution in CRT [PDF]

, 2002
The eddy current induced in an inner magnetic shield (IMS) and an electron gun affect the flux distribution of a cathode ray tube, causing a possible degrade of picture quality.
Nakano, Katsumi, Takahashi, Norio, Shimada, Koji, Ochi, Yoshiyuki, Wakasono, Hiromi   +4 more
core   +1 more source

DDSurfer: A Weakly‐Supervised Dual‐Stream Deep Learning Framework for Cortical Surface Reconstruction From Diffusion MRI

Advanced Science, EarlyView.
DDSurfer reconstructs cortical surfaces directly from diffusion MRI without requiring T1‐weighted scans. By fusing complementary microstructural features and learning diffeomorphic deformations, it efficiently generates accurate white matter and pial surfaces, improving geometric fidelity and morphometric reliability across datasets for robust surface ...
Chengjin Li, Wei Zhang, Xi Zhu, Yuqian Chen, Nir A. Sochen, Jarrett Rushmore, Carl‐Fredrik Westin, Yogesh Rathi, Lauren J. O'Donnell, Ofer Pasternak, Fan Zhang   +10 more
wiley   +1 more source

Simulation of Eddy Current Losses in Twisted Wires

Periodica Polytechnica Electrical Engineering and Computer Science
Twisted wires made of insulated strands, known as stranded conductors or litz wires, are used in various areas where the eddy current loss within the wire needs to be reduced. These areas include induction heating, resonance-based wireless energy transfer, and certain radio frequency devices. Some litz wires consist of thousands of individual conductor
openaire   +1 more source

Curvature-related eddy-current losses in laminated axial flux machine cores [PDF]

, 2005
In this paper we present an axiperiodic quasi-static model to evaluate the magnetic flux density distribution and power loss due to curvature related radial flux in the laminated core of axial flux machines.
Hewitt, Andrew, Ahfock, Tony L.
core   +1 more source

A Global Methane Observation System to Reduce Uncertainty for Anthropogenic and Natural Sources and Sinks for Detecting and Attributing Climate Feedbacks

Advanced Science, EarlyView.
Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais, S. Peng, J. Chang, F. Li, Q. Zhu, K. Yuan, G. Hugelius, H. Li, Y. Cai, F. Chevallier, K. Tibrewal, E. A. Kort, K. Arndt, J. Watts, B. Buma, N. Besic, P. I. Palmer, H. Cadillo‐Quiroz, E. Euskirchen, M. J. Gondwe, A. Hoyt, R. Jackson, S. Malone, D. Monteverde, S. Natali, M. Ramonet, C. Rey‐Sanchez, L. B. Sagang, E. A. G. Schuur, R. Vargas, R. Varner, Z. Zhang, B. Poulter   +32 more
wiley   +1 more source

A Permanent-Magnet Eddy-Current Loss Analytical Model for Axial Flux Permanent-Magnet Electric Machine Accounting for Stator Saturation

Energies
This paper introduces a hybrid analytical model (HAM) for the evaluation of permanent-magnet (PM) eddy-current loss in dual-stator single-rotor axial flux permanent-magnet machine (AFPMM), accounting for stator saturation.
Hao Liu, Jin Tian, Guofeng He, Xiaopeng Li   +3 more
doaj   +1 more source