Results 1 to 10 of about 9,364,788 (352)

Heat absorption properties of ground material for solar chimney power plants [PDF]

open access: yes, 2016
One of the major challenges to the widespread application of the solar chimney power plant is its low-power conversion efficiency because of the three technological processes involved.
Al-Azawiey, S. S., Hassan, S. B.
core   +1 more source

Photovoltaic conversion of laser power to electrical power [PDF]

open access: yes
Photovoltaic laser to electric converters are attractive for use with a space-based laser power station. The results of modeling studies for a silicon vertical junction converter used with a Nd laser are given. A computer code was developed for the model
Heinbockel, John H., Walker, Gilbert H.
core   +4 more sources

One-Shot Fault Diagnosis of Wind Turbines Based on Meta-Analogical Momentum Contrast Learning

open access: yesEnergies, 2022
The rapid development of artificial intelligence offers more opportunities for intelligent mechanical diagnosis. Fault diagnosis of wind turbines is beneficial to improve the reliability of wind turbines.
Xiaobo Liu, Hantao Guo, Yibing Liu
doaj   +1 more source

Relaxed damage threshold intensity conditions and nonlinear increase in the conversion efficiency of an optical parametric oscillator using a bi-directional pump geometry [PDF]

open access: yes, 2010
A novel bi-directional pump geometry that nonlinearly increases the nonlinear optical conversion efficiency of a synchronously pumped optical parametric oscillator (OPO) is reported.
Baxter   +12 more
core   +1 more source

Enhanced Grid-Connected Phase-Locked Loop Based on a Moving Average Filter

open access: yesIEEE Access, 2020
Moving average filter (MAF)-based phase-locked loops (PLLs) have received considerable attention in recent years due to their attractive features. Indeed, they are able to completely eliminate the unwanted effect of harmonics, dc offset, and unbalanced ...
Cong Liu   +3 more
doaj   +1 more source

Wind Turbine Generator Winding Temperature Prediction Based on XGBoost and LSTM

open access: yesZhongguo dianli, 2021
Generator stator winding temperature is a significant representation of the health status of wind turbines. Accurate prediction of winding overheating can help us timely formulate operation and maintenance plan and find out the fault source.
Wei TENG   +3 more
doaj   +1 more source

Hybrid Power Harvesting for Increased Power Conversion Efficiency

open access: yesIEEE Microwave and Wireless Components Letters, 2015
This work presents a cooperative power harvesting scheme, collecting power from two or more independent ambient energy sources into a single non-linear component. It is shown that the interaction of uncorrelated signals in a nonlinear device can greatly improve the conversion efficiency of the harvester.
Lorenz, Carlos   +5 more
openaire   +2 more sources

Potentialities of TEC topping: A simplified view of parametric effects [PDF]

open access: yes, 1980
An examination of the benefits of thermionic-energy-conversion (TEC)-topped power plants and methods of increasing conversion efficiency are discussed. Reductions in the cost of TEC modules yield direct decreases in the cost of electricity (COE) from TEC-
Morris, J. F.
core   +2 more sources

Overview of free-piston Stirling engine technology for space power application [PDF]

open access: yes, 1987
An overview is presented of free-piston Stirling engine activities, directed toward space power applications. One of the major elements of the program is the development of advanced power conversion.
Slaby, Jack G.
core   +1 more source

Efficient low-power terahertz generation via on-chip triply-resonant nonlinear frequency mixing

open access: yes, 2009
Achieving efficient terahertz (THz) generation using compact turn-key sources operating at room temperature and modest power levels represents one of the critical challeges that must be overcome to realize truly practical applications based on THz. Up to
A. W. Rodriguez   +8 more
core   +1 more source

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