Results 61 to 70 of about 1,018,848 (380)

Multi-Physics Coupling Simulation of Heat Transfer in Transformer Winding

Chemical Engineering Transactions, 2020
In the electric power industry, the requirements for capacity, voltage level and compactness of transformers are getting higher and higher, which lead to significant problems, such as increased loss and more serious hot spots phenomena.
Xiaoyu Jia, Wenrong Si, Chenzhao Fu, Yining Wu, Qiuwang Wang, Mei Lin, Jian Yang   +6 more
doaj   +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

Battery‐Free, Wireless Multi‐Sensing Platform for Comprehensive Management of Pressure Injury and Hygiene

Advanced Functional Materials, EarlyView.
A battery‐free, wireless device for real‐time monitoring of pressure injury and hygiene integrates pressure (≈10 kPa), temperature (≈40 °C), and NH3 gas sensing with antibacterial functionality. Enabled by near‐field communication, it ensures simultaneous, interference‐free mechanical and chemical monitoring, offering a practical solution for pressure ...
Myungwoo Choi, Sunwoo Lee, Sang Won Kim, Ji Yeon Lee, Younghan Kim, Jewook Kim, Gye Hyeon Lee, Saehan Choi, Seonggwang Yoo, Hak‐Young Ahn, Taehoon Kim, Je‐Sang Lee, Weon Gi Min, Inkyu Park, Young‐Seok Shim, Yoon Sung Nam, Seokwoo Jeon, Jeong‐O Lee, Yong Suk Oh, Donghwi Cho   +19 more
wiley   +1 more source

Electromagnetic hammer removes weld distortions from aluminum tanks [PDF]

, 1965
Distortions around weld areas on sheet-aluminum tanks and other structures are removed with a portable electromagnetic hammer. The hammer incorporates a coil that generates a controlled high-energy pulsed magnetic field over localized areas on the metal ...
Schwinghamer, R. J.
core   +1 more source

First measurements of the flux integral with the NIST-4 watt balance

, 2015
In early 2014, construction of a new watt balance, named NIST-4, has started at the National Institute of Standards and Technology (NIST). In a watt balance, the gravitational force of an unknown mass is compensated by an electromagnetic force produced ...
Cao, A., Chao, L. S., Haddad, D., Newell, D. B., Pratt, J. R., Schlamminger, S., Seifert, F., Sineriz, G.   +7 more
core   +1 more source

Research on borehole transient electromagnetic positioning method of azimuthal coil scanning detection

Meitan xuebao
The borehole transient electromagnetic method is used to detect the long-range water-bearing bodies around the borehole wall by using the advanced water exploration borehole in the heading roadway, which avoids the “one’s opinion in one hole” because the
Jiulong CHENG, Chenglin JIANG, Yao LI, Renxi BAI   +3 more
doaj   +1 more source

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

Influence of structural parameters on the pulse effect of pulsed coils

Results in Physics, 2022
Large-area icing is a natural disaster that presents a serious threat to the safety of aerospace and power systems, so achieving fast and efficient de-icing is an important cornerstone of energy security.
Yu Chen, Xingliang Jiang, Yi Liao, Qiulin Chen, Maozheng Wang, Tao Li, Qin Hu   +6 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

Biefeld - Brown effect and space curvature of electromagnetic field

, 2012
With applying of new proposed electromagnetic gravity Lagrangian together with Einstein-Hilbert equation not zero space curvature was derived. The curvature gives "a priory" postulate of equivalence of mass and electromagnetic field gravity properties ...
Antano, Maknickas Algirdas
core   +1 more source