Results 121 to 130 of about 82,272 (307)

Partially Segmented Permanent-Magnet Losses in Interior Permanent-Magnet Motors

Energies
Permanent-magnet losses in interior permanent-magnet (IPM) motors can result in high magnet temperatures and potential demagnetization. This study investigates using partially segmented magnets as an alternative to traditional segmented magnets to reduce
Jeremiah Vannest, Julia Zhang
doaj   +1 more source

Designing Advanced Soft Magnetic Powder Cores with Ultralow Energy Loss by Combining Ultrasonic and Static Compaction

Advanced Science, EarlyView.
Increasing the density and homogeneity of soft magnetic composites are critical for achieving high power density and low core loss. This work proposes a novel strategy by combining ultrasonic‐assisted pressing and cold pressing. In this line, the density and permeability of magnetic core have been increased a lot, while the core loss is decreased ...
Xiaoying Huang, Dongming Zhu, Xiao Jin, Yanan Chen, Meng Gao, Xuanyuan Zhang, Min Nie, Bingnan Yao, Wei Xu, Lijian Song, Juntao Huo, Wenbo Wang, Xiaojun Zhao, Mingliang Xiang, Jun‐Qiang Wang, Yan Zhang   +15 more
wiley   +1 more source

Pendekatan psikologi dakwah menangani histeria remaja muslim di Selangor [PDF]

, 2015
Gejala histeria dalam kalangan remaja di Malaysia merupakan epidemik sosial yang telah lama berlaku dalam masyarakat. Kejadian tersebut mengganggu proses pengajaran dan pembelajaran, psikologi, jasmani dan spiritual remaja.
Saparudin, Intan Farhana
core  

Nanozyme Microrobots: Programmable Spatiotemporal Catalysis for Targeted Therapy and Diagnostics

Advanced Science, EarlyView.
This review presents nanozyme microrobots as emerging catalytic systems that integrate mobility, external actuation, and adaptive reactivity to achieve precise biochemical functions. By examining mobility‐regulated catalysis, spatial targeting, integrated designs, and translational demonstrations, the article highlights how nanozyme robotics enables ...
Hong Huy Tran, Nil Kanatha Pandey, David P. Cormode, Daeyeon Lee, Edward Steager, Hyun Koo   +5 more
wiley   +1 more source

Exchange Length Tailored Magnetic Resonance for Broadband Absorption in FeCo‐Based Alloys

Advanced Science, EarlyView.
To break the high‐frequency magnetic loss bottleneck in soft magnetic alloys, a magnetic exchange length (Lex)‐guided strategy is proposed. Cu doping increases Lex and intergranular coupling, which effectively reduces magnetic anisotropy and pushes the exchange resonance to 12.0 GHz.
Xiaoyang Liu, Yingli Zhu, Shuangxin Zhang, Gangtao Luo, Mengke Qiao, Jiang Wu, Xiangcheng Li   +6 more
wiley   +1 more source

An Analytical Thermal Model for Coaxial Magnetic Gears Considering Eddy Current Losses

Modelling
This work presents an analytical 2D model for estimating eddy current losses in the permanent magnets (PMs) of a coaxial magnetic gear (CMG), with a focus on loss minimization through magnet segmentation.
Panteleimon Tzouganakis, Vasilios Gakos, Christos Papalexis, Christos Kalligeros, Antonios Tsolakis, Vasilios Spitas   +5 more
doaj   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

Advanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

Iron loss calculation model of high‐voltage multi‐pole asynchronous motors considering high harmonic flux density

IET Electric Power Applications
A variable coefficient segmented iron loss calculation model is proposed for high‐voltage multi‐pole asynchronous motors, which fully considers the influence of high‐order harmonic magnetic density on such motors.
Shiyong Xiao, Lizhu Xue, Shuai Qi, Weihao Zhang   +3 more
doaj   +1 more source

Towards Climate Neutrality by 2050: Role of Aluminum for Short‐ and Long‐Term Energy and Hydrogen Storage

Advanced Energy Materials, EarlyView.
The Aluminum energy storage cycle involves the use of renewable energy for Al production and the generation of heat (dry cycle) and heat and H2 (wet cycle) for energy production via Al‐steam combustion. ABSTRACT Reaching climate neutrality by 2050 requires innovative long‐term energy storage (LTES) solutions beyond the current use of fossil fuels ...
Lorenzo Trombetti, Stefano Passerini, Linda Barelli   +2 more
wiley   +1 more source

Flux Weakening Strategy Optimization for Five-Phase PM Machine with Concentrated Windings [PDF]

, 2012
The paper applies an Efficient Global Optimization method (EGO) to improve the efficiency, in flux weakening region, of a given 5-phase Permanent Magnet (PM) machine. An optimal control for the four independent currents is thus defined.
ASLAN, Bassel, GILLON, Frédéric, JILIN, Gong, SEMAIL, Eric   +3 more
core   +4 more sources