Results 21 to 30 of about 460,773 (264)

AlGaInAs GRADED-DAP GUNN DIODE [PDF]

open access: yesРадиофизика и электроника, 2016
Gunn diodes are the active elements for generating electromagnetic waves in the millimeter range. An urgent task of today is to increase their cutoff frequency and output power. One of the ways to do it is to use graded-gap semiconductors.
I. P. Storozhenko, М. V. Kaydash
doaj   +1 more source

Research on frequency stability of magnetic coupling wireless power transfer system

open access: yesGong-kuang zidonghua, 2021
The natural oscillation frequency of the magnetic coupling wireless power transfer system is easily affected by circuit parameters and frequency bifurcation phenomenon often occurs.
ZHANG Lian   +4 more
doaj   +1 more source

Experimental and Numerical Study on the Effect of Interfacial Heat Transfer on Performance of Thermoelectric Generators

open access: yesEnergies, 2019
The application of thermoelectric generator (TEG) systems in waste heat recovery has attracted more and more attention. In this work, the effect of interfacial heat transfer on the performance of TEG module was experimentally and numerically investigated.
Gen Li   +5 more
doaj   +1 more source

Segmented, modular synchronous reluctance direct-drive minimising the drive-train costs

open access: yesThe Journal of Engineering, 2019
High-torque motors in direct-drive applications are advantageous especially with regard to the current trend of compact, cost-effective system integration.
Claude P. Weiss   +2 more
doaj   +1 more source

Arraying of microphotosynthetic power cells for enhanced power output

open access: yesMicrosystems & Nanoengineering, 2022
AbstractMicrophotosynthetic power cells (µPSCs) generate power through the exploitation of living photosynthetic microorganisms by harvesting sunlight. The thermodynamic limitations of this process restrict the power output of a single µPSC. Herein, we demonstrate µPSCs in four different array configurations to enhance power output from these power ...
Kiran Kuruvinashetti   +1 more
openaire   +3 more sources

Quantitative Analysis of Solar Photovoltaic Panel Performance with Size-Varied Dust Pollutants Deposition Using Different Machine Learning Approaches

open access: yesMolecules, 2022
In this paper, the impact of dust deposition on solar photovoltaic (PV) panels was examined, using experimental and machine learning (ML) approaches for different sizes of dust pollutants. The experimental investigation was performed using five different
Abhishek Kumar Tripathi   +6 more
doaj   +1 more source

Effect of royal jelly supplementation on aerobic power output and anaerobic power output: Royal jelly and power output

open access: yesProgress in Nutrition, 2020
This study with a placebo-controlled experimental design intends to investigate the effect of Royal Jelly (RJ) on the aerobic and anaerobic power output of sedentary men at a dose of 1000 mg/day. For this purpose, a total of 20 adult sedentary men aged 21 to 23 years were included in this study. The subjects visited the laboratory every day for 15 days
Taşdoğan, Ali Muhittin   +3 more
openaire   +2 more sources

A Free-Piston Linear Generator Control Strategy for Improving Output Power

open access: yesEnergies, 2018
This paper presents a control strategy to improve the output power for a single-cylinder two-stroke free-piston linear generator (FPLG). The comprehensive simulation model of this FPLG is established and the operation principle is introduced. The factors
Chi Zhang   +7 more
doaj   +1 more source

Research on transmission characteristics of magnetically coupled resonant wireless power transfer system

open access: yesGong-kuang zidonghua, 2020
In view of the influence of coil parameters and load resistance changes on transmission performance of magnetically coupled resonant wireless power transfer(MCR-WPT) system, output power and efficiency of the system are derived using equivalent circuit ...
SUN Xiangyu   +3 more
doaj   +1 more source

Design of Matching Network for Magnetic Field Energy Harvesting in Wide Frequency Range

open access: yesZhongguo dianli, 2021
Magnetic field induction energy harvesting is an effective solution for self-powered sensors in electromagnetic environment. Different from electric field and RF energy of single frequency, the electromagnetic field in power conversion systems contain ...
Qingqing NIE   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy