Results 21 to 30 of about 1,078,856 (288)

Green Communication via Power-optimized HARQ Protocols [PDF]

open access: yes, 2013
Recently, efficient use of energy has become an essential research topic for green communication. This paper studies the effect of optimal power controllers on the performance of delay-sensitive communication setups utilizing hybrid automatic repeat ...
Amat, Alexandre Graell i   +2 more
core   +2 more sources

Influence of ROV umbilical on power quality when supplying electrical loads [PDF]

open access: yes, 2005
The paper investigates the effects of a 3 km electrical umbilical cable on power transmission for an "island" supply onboard an all/more electric 'work-class' remote operated vehicle (ROV).
Bingham, Chris, Snary, P, Stone, D A
core   +1 more source

The analysis of continuous admissible currents and active power losses in overhead power lines taking into account climatic factors [PDF]

open access: yesОмский научный вестник, 2023
Formulas for calculating continuous admissible currents and active power losses for overhead power transmission lines under conditions of natural and forced convection for insulated and non-insulated conductors are presented. The correct determination
E. V. Petrova   +4 more
doaj   +1 more source

A critical review of recent progress in mid-range wireless power transfer [PDF]

open access: yes, 2014
Starting from Tesla’s principles of wireless power transfer a century ago, this critical review outlines recent magneto-inductive research activities on wireless power transfer with the transmission distance greater than the transmitter coil dimension ...
Hui, SYR, Lee, CK, Zhong, W
core   +1 more source

Analysis of frequency characteristics of three-coil magnetic coupling resonant wireless power transmission system

open access: yesGong-kuang zidonghua, 2018
An equivalent circuit model of three-coil magnetic coupling resonant wireless power transmission system was built, and formulas of system transmission power and transmission efficiency were deduced.
LI Xinheng   +5 more
doaj   +1 more source

Constant output voltage and non-communication-based maximum efficiency tracking for wireless power transfer systems: Single current control of primary-side

open access: yesEnergy Reports, 2023
Wireless power transfer (WPT) technology is a novel power transmission technology using electromagnetic field as the transmission medium. It uses the advantages of electromagnetic coupling in the near field to realize contactless transmission of electric
Pengcheng Zhao   +3 more
doaj   +1 more source

Coaxial tube array space transmission line characterization [PDF]

open access: yes, 1987
The coaxial tube array tether/transmission line used to connect an SP-100 nuclear power system to the space station was characterized over the range of reactor-to-platform separation distances of 1 to 10 km.
Bents, David J., Switzer, Colleen A.
core   +2 more sources

Research of load characteristics of wireless power transmission system based on magnetic coupling resonance

open access: yesGong-kuang zidonghua, 2015
In order to study the influence of load on transmission performance of wireless power transmission system, circuit model of wireless power transmission system based on magnetic coupling resonance was established.
XUE Hui   +3 more
doaj   +1 more source

Proposed asymmetric phase shift modulation strategy to improve zero-voltage-switch range and transmission power range for dual active bridge converter

open access: yesEnergy Reports, 2023
The dual active bridge (DAB) DC–DC converter is typical in DC transformers to realize the voltage transformation and power transmission, which is determined by modulation. However, in traditional phase shift modulation strategies, the zero-voltage-switch
Yiting Xiao, Yuanpeng Guan, Li Qin
doaj   +1 more source

Thermoelectric efficiency at maximum power in low-dimensional systems

open access: yes, 2010
Low-dimensional electronic systems in thermoelectrics have the potential to achieve high thermal-to-electric energy conversion efficiency. A key measure of performance is the efficiency when the device is operated under maximum power conditions.
Linke, Heiner   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy