Results 21 to 30 of about 864,788 (299)

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

The Influence Factor Analysis of Symmetrical Half-Bridge Power Converter through Regression, Rough Set and GM(1,N) Model

open access: yesAxioms, 2022
Analysis of power converter performance has tended to be engineering-oriented, focusing mainly on voltage stability, output power and efficiency improvement. However, there has been little discussion about the weight relations between these factors.
Shih-Kuen Changchien, Kun-Li Wen
doaj   +1 more source

Analysis and Experiment of the Laser Wireless Energy Transmission Efficiency Based on the Receiver of Powersphere

open access: yesIEEE Access, 2021
Long-distance wireless energy transmission is realized by photoelectric conversion through lasers and photovoltaic cells. However, existing devices have low transmission power and low transmission efficiency.
Tiefeng He   +5 more
doaj   +1 more source

Flexible Polymer Solar Cells with High Efficiency and Good Mechanical Stability

open access: yesInternational Journal of Photoenergy, 2022
Single-junction polymer solar cells have demonstrated exceptional power conversion efficiency. Interlayer adhesion will be critical in building flexible polymer solar cells since inorganic conveyance layers would surely break.
I. Kathir   +8 more
doaj   +1 more source

A polymer tandem solar cell with 10.6% power conversion efficiency. [PDF]

open access: yes, 2013
An effective way to improve polymer solar cell efficiency is to use a tandem structure, as a broader part of the spectrum of solar radiation is used and the thermalization loss of photon energy is minimized.
Chen, Chun-Chao   +10 more
core   +1 more source

Identification method of all-operating-point admittance model for wind farms considering frequency-coupling characteristics

open access: yesInternational Journal of Electrical Power & Energy Systems
Admittance identification is an effective tool to solve the issue of black-box admittance modeling in wind farms. However, due to the large operating range of wind farms, it is difficult to accurately identify the admittance model of wind farms under all
Zilin Zhang   +6 more
doaj   +1 more source

Soft-switching SiC power electronic conversion for distributed energy resources and storage applications

open access: yesJournal of Modern Power Systems and Clean Energy, 2019
Power electronic conversion plays an important role in flexible AC or DC transmission and distribution systems, integration of renewable energy resources, and energy storage systems to enhance efficiency, controllability, stability, and reliability of ...
Keyan Shi   +3 more
doaj   +1 more source

A High-Efficiency Driver Circuit for a Gas-Sensor Microheater Based on a Switch-Mode DC-to-DC Converter

open access: yesSensors, 2020
Low power consumption is one of the critical factors for successful Internet of Things (IoT) applications. In such applications, gas sensors have become a main source of power consumption because energy conversion efficiency of the microheater is ...
Tzu-Sen Yang, Jin-Chern Chiou
doaj   +1 more source

Multi-Source Information Fusion for Environmental Perception of Intelligent Vehicles Using Sage-Husa Adaptive Extended Kalman Filtering

open access: yesSensors
With the rapid advancement of intelligent driving technology, multi-source information fusion has become a vital topic in the field of environmental perception.
Yibo Meng, Huifang Kong, Tiankuo Liu
doaj   +1 more source

1.6 W continuous-wave Raman laser using low-loss synthetic diamond [PDF]

open access: yes, 2011
Low-birefringence ...
Bonner, Gerald M.   +8 more
core   +2 more sources

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