Results 61 to 70 of about 92,312 (333)

Reduction of radiated emission from resonance coil in GaN wireless power transmission circuit by using Nd–Fe–N magnetic material

AIP Advances, 2020
In this study, the Nd–Fe–N materials are employed as an electromagnetic shield, for the first time, for the resonance coil in the 13.56-MHz-GaN wireless power transmission circuit.
Toshihide Ide, Nobuyoshi Imaoka, Mikio Oomori, Kimihiro Ozaki, Mitsuaki Shimizu, Noriyuki Takada   +5 more
doaj   +1 more source

High‐Performance Millimeter Scale Electromagnetic Generator

Advanced Functional Materials, EarlyView.
A high‐performance millimeter‐scale electromagnetic generator (mmEMG) is developed using magnetic flux concentrator (MFC) films on both coil ends to enhance magnetic flux. Through simulations and experiments, structural and magnetic properties are optimized, achieving a 5.6‐fold electrical output improvement.
Jin Pyo Lee, Xinran Zhou, Yangyang Xin, Dace Gao, Peiwen Huang, Pooi See Lee   +5 more
wiley   +1 more source

Tube Electromagnetic Free Bulging Based on Internal Negative-External Positive Three-Coil System

IEEE Access, 2020
Controlling the direction and profile of the electromagnetic force (EMF) is a key of improving the tube axial-uniformity and wall thickness during the electromagnetic forming process.
Li Qiu, Chenglin Wang, Ahmed Abu-Siada, Wang Bin, Weikang Ge, Chang Liu, Peng Chang   +6 more
doaj   +1 more source

Mathematical Modeling of an Electromagnetic Forming System with Flat Spiral Coils as Actuator [PDF]

, 2010
This study presents mathematical modeling and calculation procedure for problems of electromagnetic forming of thin circular metal sheets using flat spiral coil as actuator.
Geier, M., Homrich, R. P., Ortiz, J. C. S., Pacheco, J. L., Paese, E.   +4 more
core  

Magnetically Guided Mechanoactive Mineralization Scaffolds for Enhanced Bone Regeneration

Advanced Functional Materials, EarlyView.
A 3D‐printed ‘rebar‐concrete’ inspired scaffold (PGS‐P@MGel) synergizes spontaneous biomineralization with magneto‐mechanical stimulation through PDA@Fe3O4‐embedded hydrogel. This dual biointerface activates Piezo1/β‐catenin/YAP mechanotransduction axis, enhancing BMSCs osteogenesis and angiogenesis simultaneously.
Xuran Guo, Zaijin Tao, Zhenzhen Dai, Yinghua Gao, Chengzhen Chu, Cunyi Fan, Shen Liu, Xin Ma, Fangchun Jin, Zhengwei You, Jia Jiang   +10 more
wiley   +1 more source

Electromagnetic Meissner effect launcher [PDF]

, 1991
An electromagnetic projectile launcher provides acceleration of a superconducting projectile through the diamagnetic repulsion of the superconducting projectile. A superconducting layer is provided aft of the projectile, either directly on the projectile
Robertson, Glen A.
core   +1 more source

Transducer Materials Mediated Deep Brain Stimulation in Neurological Disorders

Advanced Functional Materials, EarlyView.
This review discusses advanced transducer materials for improving deep brain stimulation (DBS) in neurological disorders. These materials respond to light, ultrasound, or magnetic fields, enabling precise, less invasive neuromodulation. Their stimulus‐responsive properties enhance neural control and adaptive therapy, paving the way for next‐generation ...
Di Zhao, Zhengyang Cao, Guangjun Zhong, Limin Shi, Junxia Xie, Jianhua Hao   +5 more
wiley   +1 more source

Self-decoupled radiofrequency coils for magnetic resonance imaging

Nature Communications, 2018
Conventional coil arrays require complex decoupling technologies to reduce electromagnetic coupling between coil elements. Here, the authors report a self-decoupled RF coil design that achieves high inter-coil isolation between adjacent and non-adjacent ...
Xinqiang Yan, John C. Gore, William A. Grissom   +2 more
doaj   +1 more source

Double Helical Plasmonic Antennas

Advanced Functional Materials, EarlyView.
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin, Luka Zurak, Krzysztof Maćkosz, Lorenz Löffler, Victor Deinhart, Ivo Utke, Thorsten Feichtner, Katja Höflich   +7 more
wiley   +1 more source

Investigating the electric field distribution in the human brain model induced by a high focality transcranial magnetic coil

AIP Advances, 2023
Transcranial magnetic stimulation (TMS) is a noninvasive neuromodulation technique for treating various neurological disorders. The geometry of the TMS coil determines the focality, stimulation field strength, and stimulation depth of the induced ...
Yong Wang, Yonghui Yang, Yihao Qi, Enzhong Gong, Haiyang Zhang, Liantao Shi, Zhengguo Li   +6 more
doaj   +1 more source