Results 21 to 30 of about 1,457,577 (286)

Multi-Level Estimation of the Heat Transfer Processes Efficiency in the Power Plants Elements [PDF]

open access: yesProblems of the Regional Energetics, 2020
The increase of power plants efficiency by improving the processes of heat and mass transfer of the working fluid between their elements is a relevant problem. The influence of the heat transfer processes intensity on the values of the simple and complex
Kuznetsov V.V.
doaj   +1 more source

Maximizing Transfer Efficiency with an Adaptive Wireless Power Transfer System for Variable Load Applications

open access: yesEnergies, 2021
Electronic devices usually operate in a variable loading condition and the power transfer efficiency of the accompanying wireless power transfer (WPT) method should be optimizable to a variable load.
Jung-Hoon Cho   +2 more
doaj   +1 more source

Design and Implementation of a Wireless Charging-Based Cardiac Monitoring System Focused on Temperature Reduction and Robust Power Transfer Efficiency [PDF]

open access: yes, 2020
Wireless power transfer systems are increasingly used as a means of charging implantable medical devices. However, the heat or thermal radiation from the wireless power transfer system can be harmful to biological tissue.
Dawon Jeong   +6 more
core   +1 more source

Nonradiating sources for efficient wireless power transfer [PDF]

open access: yesNanophotonics, 2021
Abstract Nonradiating sources of energy realized under a wave scattering on high-index dielectric nanoparticles have attracted a lot of attention in nano-optics and nanophotonics. They do not emit energy to the far-field, but simultaneously provides strong near-field energy confinement.
Esmaeel Zanganeh   +7 more
openaire   +2 more sources

A Linear-Power-Regulated Wireless Power Transfer Method for Decreasing the Heat Dissipation of Fully Implantable Microsystems

open access: yesSensors, 2022
Magnetic coupling resonance wireless power transfer can efficiently provide energy to intracranial implants under safety constraints, and is the main way to power fully implantable brain–computer interface systems.
Haochuan Wang   +6 more
doaj   +1 more source

Asynchronous Focusing Time Reversal Wireless Power Transfer for Multi-Users With Equal Received Power Assignment

open access: yesIEEE Access, 2021
Time reversal wireless power transfer (TR-WPT) provides an efficient radiated method for wirelessly transferring power to multiple users at a middle distance in complicated multipath environments.
Zhouming Yang   +6 more
doaj   +1 more source

High Efficiency Wireless Power Transfer System for Medium Power [PDF]

open access: yesProceedings of the 2016 International Conference on Electrical, Mechanical and Industrial Engineering, 2016
As the technology matures and increased demand for wireless charging, the development of wireless power transfer technology is getting more and more concern. This paper analyzed the wireless power transfer system through mutual inductance equivalent model and obtained the mathematical relationship between various parameters. It also analyzed the system'
Zuosheng Xie   +3 more
openaire   +1 more source

Power Transfer Efficiency Analysis for Omnidirectional Wireless Power Transfer System Using Three-Phase-Shifted Drive

open access: yesEnergies, 2018
In order to implement the omnidirectional wireless power transfer (WPT), a novel three-phase-shifted drive omnidirectional WPT system is proposed.
Zhaohong Ye   +5 more
doaj   +1 more source

Efficient modeling of the wireless power transfer efficiency for varying positions and orientations between transmitter and receiver [PDF]

open access: yes, 2015
A method that efficiently calculates the Power Transfer Efficiency (PTE) of a Wireless Power Transfer (WPT) system is described in this paper. It allows for arbitrary relative positions and orientations between devices in the system, both in far-field ...
Rogier, Hendrik   +2 more
core   +1 more source

Boosting the Efficiency: Unconventional Waveform Design for Efficient Wireless Power Transfer [PDF]

open access: yesIEEE Microwave Magazine, 2015
Traditionally, wireless power is delivered through single-carrier, continuous-wave (CW) signals. Most research efforts to enhance the efficiency of wireless power transfer systems have been confined to the circuit-level design. However, in recent years, attention has been paid to the waveform design for wireless power transmission.
Boaventura, Alírio   +5 more
openaire   +1 more source

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