Results 121 to 130 of about 1,002,790 (325)

An Identification Method of Main Harmonic Current Indicator Based On Active Power Direction Method

MATEC Web of Conferences, 2017
It is difficult to determine the harmonic current which flows through the line element in power grid, the paper proposed a new method for identifying the main harmonic current indicator at the Point of Common Coupling (PCC) based on the strict mathematic
Zhao Junyi, Yang Chaoying, Xue Zhiwei, Yuan Lin   +3 more
doaj   +1 more source

Series-shunt Distributed Compensation for Harmonic Mitigation and Dynamic Power Factor Correction

Eletrônica de Potência, 2012
This work present the development of an electronically controlled harmonic mitigation device with the property that it can inserts specific series harmonic impedances in the electric system.
Gleisson J. França, Braz J. Cardoso Filho   +1 more
doaj   +1 more source

Current fluctuations in a single tunnel junction

, 1995
We study noise spectra of currents through a tunnel junction in weak tunneling limit. We introduce effective capacitance to take into account the interaction effect and explicitly incorporate the electromagnetic environment of the junction into the ...
A. J. Dahm, A. N. Cleland, A. O. Caldeira, A. O. Caldeira, A. O. Caldeira, B. Yurke, C. de C. Chamon, C. Dekker, E. Ben-Jacob, F. Liefrink, G. B. Lesovik, H. B. Callen, Hyunwoo Lee, K. Flensberg, L. S. Levitov, M. Büttiker, M. Büttiker, M. H. Devoret, M. Reznikov, P. Fendley, R. Landauer, S. M. Girvin, S. R. E. Yang, V. Scalia, W. Zwerger, Y. P. Li   +25 more
core   +2 more sources

Universal Electronic‐Structure Relationship Governing Intrinsic Magnetic Properties in Permanent Magnets

Advanced Functional Materials, EarlyView.
Permanent magnets derive their extraordinary strength from deep, universal electronic‐structure principles that control magnetization, anisotropy, and intrinsic performance. This work uncovers those governing rules, examines modern modeling and AI‐driven discovery methods, identifies critical bottlenecks, and reveals electronic fingerprints shared ...
Prashant Singh
wiley   +1 more source

Research on the Harmonic Impedance of Three-phase PWM Converter

Kongzhi Yu Xinxi Jishu, 2013
Harmonic impedance is a key parameter used to analyze the stability of system, optimized design of filter, and so forth. It developed an output impedance model in abc coordinates and dq coordinates as an example of a typical three-phase PWM inverter ...
SHI Hongtao, ZHUO Fang, HOU Lixiang, YUE Xiaolong, ZHANG Dong, GENG Zhiqing   +5 more
doaj  

Design of Millimeter-wave Detector for Gyrotron Power Monitoring

, 2019
The real-time power monitoring of gyrotron is one of the key issues in the operation of electron cyclotron resonance heating system. The detector can be used for real-time power monitoring.
Liu, Fukun, Wang, Xiaojie, Xu, Handong, Xu, Weiye   +3 more
core   +1 more source

High Entropy Wide‐Bandgap Borates with Broadband Luminescence and Large Nonlinear Optical properties

Advanced Functional Materials, EarlyView.
High‐entropy rare‐earth borates exhibit excellent nonlinear optical and broadband luminescence properties arising from multi‐component doping, chemical disorder, increased configurational entropy, and increased lattice and electronic anharmonicity. This formulation enabled us to obtain a large, environmentally stable single crystal with 3X higher laser‐
Saugata Sarker, Yu Wang, Yongwen Sun, Caeli Benyacko, Saeed S.I. Almishal, Tao Zhou, Zhiyu Zhang, Jadupati Nag, Himirkanti Sarkar, Jeffrey Shallenberger, Hemant Yennawar, Yang Yang, Jon‐Paul Maria, Zhiqiang Mao, Venkatraman Gopalan   +14 more
wiley   +1 more source

Calculation and Optimization of Resistive Wall and RF Cavity Impedance in Medium Energy Diffraction Limit Storage Ring

Yuanzineng kexue jishu, 2022
In the diffraction limit storage ring, the size of the vacuum chamber was greatly reduced compared with the third-generation synchronous light source due to the high-gradient small-aperture magnet, and the impedance of ring is significantly increased ...
WANG Meng;ZHANG Wenzhi;TIAN Shunqiang;CAI Chuanbing;LIU Xinzhong
doaj  

Laser radio transmitter

, 2019
Since the days of Hertz, radio transmitters have evolved from rudimentary circuits emitting around 50 MHz to modern ubiquitous Wi-Fi devices operating at gigahertz radio bands.
Belyanin, Alexey, Capasso, Federico, Chevalier, Paul, Connors, Michael K., McNulty, Daniel, Piccardo, Marco, Rubin, Noah A., Schwarz, Benedikt, Tamagnone, Michele, Wang, Christine A., Wang, Yongrui   +10 more
core   +2 more sources

Micro and Nanostructural Diversity of Lizard Osteoderm Capping Tissue in Relation to Mechanical Performance

Advanced Functional Materials, EarlyView.
This study shows that lizard osteoderm capping tissue is a hyper‐mineralized hydroxyapatite layer consistently covering the superficial osteoderm surface in those species studied here, yet it varies greatly in morphology, nanostructure, and mechanical performance across species.
Adrian Rodriguez‐Palomo, Marius Didziokas, Malene Siri Berg Jacobsen, Thorbjørn Erik Køppen Christensen, Innokenty Kantor, Mads Ry Vogel Jørgensen, Klaus Pagh Almtoft, Jesper Skovhus Thomsen, Anthony Herrel, Catherine J.A. Williams, Henrik Birkedal   +10 more
wiley   +1 more source