Results 21 to 30 of about 4,727,589 (239)

Hu Y. S., Wei H. J., Yu B., Yang O. X., Wang J., Wu J. Research on the vapor injection of two-stage rotary compressor / trans. from Engl. M. A. Fedorova [PDF]

Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2021
In order to understand the vapor injection flow characteristics of two-stage rotary compressor in the course of compression, a mathematical model based on mass conservation equation, energy equation and thermodynamic identity was established and proved
M. A. Fedorova
doaj   +1 more source

Impact of the evanescent waves on the backflow of power in the near field

Journal of Physics: Conference Series, 2019
Abstract For an elliptically polarized optical vortex with an arbitrary integer topological charge, using the expressions for all six components of the electric and magnetic field strength vectors, we obtain an expression for the longitudinal component of the Poynting vector in the initial plane.
V V Kotlyar, A A Kovalev, D S Kalinkina
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Minimum Return Power Control for Three-Level Dual Active Hybrid Full-Bridge DC-DC Converters

Shanghai Jiaotong Daxue xuebao, 2023
Hybrid three-level full bridge (H-TLFB) DC-DC converters increase the input voltage range by introducing a three-level bridge arm. Aimed at the problems of large power return and high current stress in the traditional dual phase shift control, a minimum ...
TAO Haijun, ZHANG Jinsheng, XIAO Qunxing, ZHENG Zheng
doaj   +1 more source

Performance Evaluation of Modulation Techniques in Single-Phase Dual Active Bridge Converters

IEEE Open Journal of the Industrial Electronics Society, 2021
This research presents a thorough comparison of different modulation techniques employed in dual active bridge (DAB) converters. The performance of a DAB converter is essentially affected by the modulation technique and the operating point, including ...
Negar Noroozi, Ali Emadi, Mehdi Narimani
doaj   +1 more source

1996 Wholesale Power and Transmission Rate Schedules. [PDF]

, 1996
Bonneville Power Administration`s (BPA) 1996 Wholesale Power Rate Schedules, 1996 Ancillary Products and Services Rate Schedule, 1996 Transmission Rate Schedules, and General Rate Schedule Provisions, contained herein, were approved on an interim basis ...
United States. Bonneville Power Administration.
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Melbourne Backflow

, 2022
Melbourne Backflow is your go-to plumber for Backflow Services in Melbourne. We offer Backflow Valve Servicing, Backflow Valve Testing, Backflow Valve Installation, Replacement and Reporting.
Michael Treppo
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Impact of Reverse Power Flow on Distributed Transformers in a Solar-Photovoltaic-Integrated Low-Voltage Network

Energies, 2022
Modern low-voltage distribution systems necessitate solar photovoltaic (PV) penetration. One of the primary concerns with this grid-connected PV system is overloading due to reverse power flow, which degrades the life of distribution transformers.
Issah Babatunde Majeed, Nnamdi I. Nwulu
doaj   +1 more source

Living and Working Safely Around High-Voltage Power Lines. [PDF]

, 1998
High-voltage transmission lines can be just as safe as the electrical wiring in the homes--or just as dangerous. The crucial factor is ourselves: they must learn to behave safely around them.
United States. Bonneville Power Administration.
core   +1 more source

Inhibiting Oil Splitting and Backflow in Electrowetting Displays by Designing a Power Function Driving Waveform

Electronics, 2022
Electrowetting display (EWD) is one of the latest and most promising reflective displays. However, some defects are easily caused in a driving process. For example, the aperture ratio of pixels can be reduced due to oil splitting, and the grayscale cannot be stabilized due to charge trapping. These defects can be effectively solved by designing driving
Tian, Lixia, Zhang, Hu, Yi, Zichuan, Zhang, Bingsong, Zhou, Rui, Zhou, Guofu, Gong, Jianlong   +6 more
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Backflows In- And Feedback From Jet-Powered Agns

, 2016
During the propagation of a jet within the Interstellar medium of its host galaxy an expanding cavity filled with hot, turbulent gas forms, within which the jet itself propagates. We have performed a series of numerical experiments aiming at studying the large scale circulation within this jet-cocoon system. The gas advected by this backflow has a very
Antonuccio-Delogu, V., Cielo, S., Silk, J., Romeo, A. D.   +3 more
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