Results 1 to 10 of about 1,453,812 (287)

Wireless Power Transfer-Based Microrobot with Magnetic Force Propulsion Considering Power Transfer Efficiency [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2022
A microrobot that could continuously receive both electrical energy and propulsion force from a wireless power transfer system would offer tremendous benefits.
Dongwook Kim, Seungyoung Ahn
doaj   +2 more sources

Wireless Power Transfer Efficiency Optimization Tracking Method Based on Full Current Mode Impedance Matching [PDF]

open access: yesSensors
Wireless power transfer (WPT) technology is a contactless wireless energy transfer method with wide-ranging applications in fields such as smart homes, the Internet of Things (IoT), and electric vehicles.
Yuanzhong Xu, Yuxuan Zhang, Tiezhou Wu
doaj   +2 more sources

Maximizing wireless power transfer efficiency at exceptional points [PDF]

open access: yesCommunications Engineering
Magnetically coupled wireless power transfer (WPT) technology has been applied in stationary consumer electronics and holds great potential for charging traveling electric vehicles.
Wei-Kang Hu   +4 more
doaj   +2 more sources

Optimal Huygens’ Metasurface for Wireless Power Transfer Efficiency Improvement [PDF]

open access: yesIEEE Access, 2020
In this paper, we investigate the electromagnetic response of a Huygens' metasurface (HMS) embedded between the transmitter and receiver coils of a near field wireless power transfer (WPT) system and their interactions for the feasibility of increasing ...
Hemn Younesiraad   +2 more
doaj   +4 more sources

Comparison on cooling performance of pre-cooled natural draft dry cooling towers using nozzles spray and wet medium

open access: yesCase Studies in Thermal Engineering, 2021
Evaporative pre-cooling technology improves the cooling performance of natural draft dry cooling towers (NDDCTs) by introducing a certain amount of water into the air entrance. This paper compares the effects of different evaporative pre-cooling systems (
Jiayu Miao   +8 more
doaj   +1 more source

Analysis and Design of Asymmetric Mid-Range Wireless Power Transfer System with Metamaterials

open access: yesEnergies, 2021
In a wireless power transfer (WPT) system, the power transfer efficiency (PTE) decreases sharply with the increase in transfer distance. Metamaterials (MMs) have shown great potential to enhance PTE in mid-range WPT systems. In this paper, we propose two
Yingqin Zeng   +6 more
doaj   +1 more source

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

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

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

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