Results 261 to 270 of about 166,451 (293)

Automatic compensation technique for alternating current metrology based on synchronous filtering

Review of Scientific Instruments, 1998
In alternating current electrical metrology, the balancing procedure is the act of reduction to zero of a measured terminal-pair voltage (or current), accomplished via injection of a compensation voltage (current) in the circuit. An automatic compensation technique is described here: the terminal-pair voltage is continuously sensed, by means of vector ...
CALLEGARO, LUCA, D'ELIA V.
openaire   +3 more sources

Synchronized achieving amount reduction and efficiency increase of lithium salt-type additive by alternating current pulse discharge technology

Chemical Engineering Journal
Shiyou Li, Yulong Zhang, Shumin Wu, Yin Quan, Meiling Wu, Peng Wang, Dongni Zhao, Xiaoling Cui   +7 more
openalex   +2 more sources

Control-Action Optimization in Synchronous Reluctance and Inductor Alternating-Current Drives

Russian Electrical Engineering, 2018
An algorithm for optimizing the control action in the torque contours of synchronous reluctance and inductor ac drives is described in this paper. It allows one to search for an optimal principle for electric-drive operation that is suitable for any electromechanical converter with magnetic asymmetry of the rotor.
A. N. Gorozhankin, A. A. Gryzlov, A. T. Tsirkunenko, A. M. Zhuravlev   +3 more
openaire   +2 more sources

Eddy‐current computation on a one pole‐pitch model of a synchronous claw‐pole alternator

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 2003
This paper deals with 3D finite‐element calculation of eddy currents in the claws of a claw‐pole alternator taking the rotational geometry movement into account. Two transient edge‐based vector formulations are utilised. The reduction of the model to only one pole pitch in combination with a special boundary pairing in the air gap for the applied lock ...
Gerhard Henneberger, Christian Kaehler
openaire   +3 more sources

Eddy-current computation in the claws of a synchronous claw-pole alternator in generator mode

IEEE Transactions on Magnetics, 2002
This paper deals with the three-dimensional finite-element (FE) calculation of eddy currents in the claws of a claw-pole alternator taking the rotational geometry movement into account. For this calculation a transient edge-based A/spl I.oarr/, A/spl I.oarr/ - T/spl I.oarr/ formulation is utilized. The generation of the FE model with a special focus on
C. Kaehler, G. Henneberger
openaire   +2 more sources

Switching motion analysis and synchronization control of a locally active memristive neuron model

Physica Scripta, 2023
In this paper, a new four-dimensional HR neuron model is developed by means of injecting external alternating current and introducing a locally active memristor to simulate the induced current in the synapse.
Yanlan Ren, Li Zhang, Xinlei An, Jiangang Zhang   +3 more
semanticscholar   +1 more source

Synchronous multi-species alternations between the northern Humboldt and Kuroshio Current systems

Deep Sea Research Part II: Topical Studies in Oceanography, 2019
Abstract Synchrony of species alternations in the northern Humboldt (NHCS) and Kuroshio (KCS) Current systems was examined by comparing time series data of landings and population statistics of major small pelagic fish species along with climate indices from 1960 to 2015.
Yoshioki Oozeki, Miguel Ñiquen Carranza, Akinori Takasuka, Patricia Ayón Dejo, Hiroshi Kuroda, Jorge Tam Malagas, Takeshi Okunishi, Luis Vásquez Espinoza, Dimitri Gutiérrez Aguilar, Hiroshi Okamura, Renato Guevara Carrasco   +10 more
openaire   +2 more sources

Thermal Modeling of a Hybrid Excitation Synchronous Generator with Alternated Current Linkages for Stand-Alone Power Supply

International Review of Electrical Engineering (IREE), 2015
This paper presents the thermal modelling and analysis of a hybrid excitation synchronous generator with alternated current linkages (HESG-ACL) for stand-alone power supply. The HESG-ACL belongs to a class of hybrid excitation synchronous machines (HESMs), which combine the merits of electrically excited synchronous machines (EESMs) and permanent ...
Juha Pyrhonen, Valeriy Zaboin, Katteden Kamiev, Yulia Alexandrova   +3 more
openaire   +4 more sources

Research of the Regulation Effect of Transcranial Alternating Current Stimulation on Vigilant Attention

Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2018
Vigilant attention plays an important role in some industries and everyday life. However, the relationship between the variation of vigilant attention and phase synchronization is still unknown.
H. Cui, Jinwen Wei, Yufeng Ke, X. An, Chang Sun, Minpeng Xu, Hongzhi Qi, Dong Ming, Peng Zhou   +8 more
semanticscholar   +1 more source

Calculation of synchronous reactances of small permanent-magnet alternating-current motors: comparison of analytical approach and finite element method with measurements

IEEE Transactions on Magnetics, 1998
The synchronous reactances of permanent magnet (PM) motors have been determined using: (1) analytical method, i.e., form factors of the stator field (armature reaction factors), (2) finite element method (FEM), and (3) experimental tests on a special machine set.
J. GIERAS, SANTINI, Ezio, M. WING
openaire   +2 more sources