Results 11 to 20 of about 676,492 (269)

Coupled piezoelectric-circuit FEA to study influence of a resistive load on power output of piezoelectric energy devices [PDF]

open access: yes, 2012
This paper presents, for the first time, a coupled piezoelectric-circuit finite element model (CPC-FEM) to analyze the power output of vibration-based piezoelectric energy harvesting devices (EHDs) when connected to a resistive load.
Zhu, Meiling   +2 more
core   +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

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

Improving LCC Series-Based Wireless Power Transfer System Output Power at High Temperature

open access: yes, 2021
Adding a core to a coupling coil can improve transmission efficiency. However, the added core causes the self-inductance of the coupling coil to increase at a high temperature due to the temperature-sensitive property of the core material’s ...
Chien-Lung Chen, Chung-Wen Hung
core   +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

Forecast of Solar Photovoltaic Power Output Based on Polycrystalline Panel-based Employing Various Ensemble Machine Learning Methods

open access: yes, 2022
This paper presents solar photovoltaic (PV) energy prediction based on Polycrystalline technology utilizing various ensemble machine learning (ML) models.
Mubarak, H   +5 more
core   +1 more source

Battery Energy Storage System for PV Output Power Leveling [PDF]

open access: yes, 2014
Fluctuating photovoltaic (PV) output power reduces the reliability in power system when there is a massive penetration of PV generators. Energy storage systems that are connected to the PV generators using bidirectional isolated dc-dc converter can be ...
Taghizadeh, S   +3 more
core   +1 more source

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

High power fiber sources: more than kilowatts [PDF]

open access: yes, 2007
Fiber lasers and amplifiers have reached several kilowatts of output power, and offer many attractions beyond raw power. This tutorial discusses basic scientific and practical issues of fiber sources, and advantages and limitations that derive from ...
Nilsson, J., Johan Nilsson
core   +1 more source

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