Results 31 to 40 of about 21,938 (263)

Fault Line Selection Method Based on Transfer Learning Depthwise Separable Convolutional Neural Network

Journal of Electrical and Computer Engineering, 2021
With the continuous development of artificial intelligence technology, the value of massive power data has been widely considered. Aiming at the problem of single-phase-to-ground fault line selection in resonant grounding system, a fault line selection ...
Haixia Zhang, Wenao Cheng
doaj   +1 more source

Identifying Faulty Feeder for Single-Phase High Impedance Fault in Resonant Grounding Distribution System

Energies, 2019
The identification of faulty feeder for single-phase high impedance faults (HIFs), especially in resonant grounding distribution system (RGDS), has always been a challenge, and existing faulty feeder identification techniques for HIFs suffer from some ...
Tao Tang, Chun Huang, Zhenxing Li, Xiuguang Yuan   +3 more
doaj   +1 more source

Topolectrical circuits

, 2017
Invented by Alessandro Volta and F\'elix Savary in the early 19th century, circuits consisting of resistor, inductor and capacitor (RLC) components are omnipresent in modern technology. The behavior of an RLC circuit is governed by its circuit Laplacian,
Bayer, Florian, Berger, Christian, Brehm, Johannes, Imhof, Stefan, Kiessling, Tobias, Lee, Ching Hua, Molenkamp, Laurens W., Thomale, Ronny   +7 more
core   +1 more source

Optical Feshbach resonances and ground-state-molecule production in the RbHg system [PDF]

Physical Review A, 2017
We present the prospects for photoassociation, optical control of interspecies scattering lengths and finally, the production of ultracold absolute ground state molecules in the Rb+Hg system. We use the "gold standard" ab initio methods for the calculations of ground (CCSD(T)) and excited state (EOM-CCSD) potential curves.
Borkowski, Mateusz, Rodriguez, Rodolfo Muñoz, Kosicki, Maciej B., Ciuryło, Roman, Żuchowski, Piotr S.   +4 more
openaire   +2 more sources

Blocking a wave: Frequency band gaps in ice shelves with periodic crevasses [PDF]

, 2011
We assess how the propagation of high-frequency elastic-flexural waves through an ice shelf is modified by the presence of spatially periodic crevasses.
Ashcroft, Chou, Douglas R. MacAyeal, Jason M. Amundson, Julian Freed-Brown, Landau, Sheng, Van der Veen, Van der Veen, Wendy W. Zhang   +9 more
core   +2 more sources

Fault line selection method for earth faults occurred in different phases of two feeders connected to the same bus based on the ratio of zero-sequence admittance amplitude

电力工程技术
When the earth faults occur in different phases of two feeders connected to the same bus in the resonant grounding system, the conventional fault line selection devices are inaccurate.
HAN Jie, LIU Zhiyong, ZHOU Qilin, TONG Rui, LING Yuchang, LIANG Guokai   +5 more
doaj   +1 more source

Deterministic delivery of externally cold and precisely positioned single molecular ions

, 2011
We present the preparation and deterministic delivery of a selectable number of externally cold molecular ions. A laser cooled ensemble of Mg^+ ions subsequently confined in several linear Paul traps inter-connected via a quadrupole guide serves as a ...
A. Friedenauer, A. Ostendorf, B. Roth, C. Wieman, D. Gerlich, D. Madsen, D.J. Larson, D.J. Wineland, F. Diedrich, G. Leschhorn, G. Webster, H.L. Bethlem, H.L. Bethlem, H.N. Chapman, J.B. Fenn, K. Mølhave, L. Young, M. Drewsen, M. Seibert, M.D. Barrett, N. Kjaergaard, P.F. Staanum, P.W. Smith, R. Henderson, R. Neutze, S. Kahra, S. Kahra, S. Schiller, S. Willitsch, S.A. Rangwala, T. Junglen, T. Schaetz, T. Schaetz, T. Schneider, U. Schramm, U. Schramm, W. Paul   +36 more
core   +1 more source

A Technique of Direct Tension Measurement of a Strung Fine Wire [PDF]

, 1998
We present a new technique of direct measurement of wire tensions in wire chambers. A specially designed circuit plucks the wire using the Lorentz force and measures the frequency of damped transverse oscillations of the wire.
Asano, Bhadra, Borghesi, Burns, Calvetti, Carlsmith, Cavalli-Sforza, Coupland, D'Antone, Durkin, Graessle, Hoshi, J Ting, Jones, K Lang, Regan, Shenhav, Stephenson, V Vassilakopoulos   +18 more
core   +2 more sources

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

FEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso, Jaime Hiniesta‐Valero, Alejandra Guerra‐Castellano, Miguel A. De la Rosa, Irene Díaz‐Moreno   +4 more
wiley   +1 more source

Reduction of heat sink common-mode currents in switching mode power supply circuits [PDF]

, 2011
In this paper, a new filter design for a heat sink is presented. The parasitic couplings between electric power devices and the heat sink are responsible for common-mode currents.
J. H. Hagmann, J. Kulanayagam, K. F. Hoffmann, S. Dickmann   +3 more
core   +1 more source