Results 41 to 50 of about 23,688 (250)

Automatic optimal control of transcutaneous wireless energy transfer system with magnetic position feedback

Wireless Power Transfer
A high percentage of the world population suffers from end-stage heart failure, which may lead to the need for heart transplantation. A left ventricular assist device (LVAD) may be required for deteriorating patients whilst on the waiting list for a ...
Sarath S. Nair, Sachin J. Shenoy, Sivadasanpillai Harikrishnan   +2 more
doaj   +1 more source

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

Sensors, 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, Chenglong Zhu, Wenkai Jin, Junjie Tang, Zhanxiong Wu, Keming Chen, Hui Hong   +6 more
doaj   +1 more source

Laser‐Welded Cellulose‐Carbon Nanotube Nanocomposites as a 3D Scaffold of Si Anodes for High‐Performance Lithium‐Ion Batteries

Advanced Functional Materials, EarlyView.
A Si anode comprising entangled networks of cellulose and SWCNT (C‐CNT) nanocomposites as an anode electrode for a high‐performance LIB is realized by fully utilizing the generated microstructure of a novel conductive 3D scaffold via a low‐temperature and eco‐friendly process. Additionally, localized heating via photo‐thermal conversion can be utilized
Boeun Ryu, Younghoon Jung, Hojin Son, Min‐Young Kim, Jinsub Lim, Changhun Yun   +5 more
wiley   +1 more source

Efficiency control for multi-receiver inductive power transfer systems without knowing realtime coupling

Wireless Power Transfer
This study is centered on maintaining high efficiency within a multi-receiver system in the absence of real coupling information. It explores the derivation of an optimal driving current crucial for efficiency maximization, revealing its reliance on both
Xinlin Wang, Rong He, Ziyuan Lin, Minfan Fu   +3 more
doaj   +1 more source

Wireless Power Transfer—A Review

Energies, 2022
This paper presents the current state of knowledge in the field of wireless power transfer. The concept of such a transfer and the basic methods of its implementation are described, together with block diagrams of the necessary devices.
Kalina Detka, Krzysztof Górecki
doaj   +1 more source

Magnetism and Nonlinear Charge Transport in NiFe2O4/γ‐Al2O3/SrTiO3 Heterostructure: Toward Spintronic Applications

Advanced Functional Materials, EarlyView.
In this report, we demonstrate that a crystalline phase of 52nm thick NiFe2O4 can be grown by RF sputtering on top of γ‐Al2O3(8nm)/SrTiO3 at a significantly low temperature (150 °C) without compromising the mobility and carrier density of the 2D electron gas at the γ‐Al2O3(8nm)/SrTiO3 interface.
Amit Chanda, Thor Hvid‐Olsen, Christina Hoegfeldt, Anshu Gupta, Alessandro Palliotto, Fardin Ghaffari‐Tabrizi, Maja A. Dunstan, Kasper S. Pedersen, Dae‐Sung Park, Damon J. Carrad, Thomas Sand Jespersen, Felix Trier   +11 more
wiley   +1 more source

Application of wireless self powered communication sensors in 6G networks for tennis sports

Wireless Power Transfer
With the gradual approach of 6G network technology, the field of the Internet of Things (IoT) has ushered in unprecedented development opportunities, especially in the intelligent management of tennis.
Yanan Xie, Bing Bai, Yunpeng Zhao
doaj   +1 more source

Gourd‐Inspired Design of Unit Cell with Multiple Gradients for Physiological‐Range Pressure Sensing

Advanced Functional Materials, EarlyView.
Gourd‐shaped micro‐dome arrays with coordinated modulus, conductivity, and geometric gradients co‐optimize sensitivity and linearity in piezoresistive tactile sensors. Under pressure, a solid upper dome embeds into a porous lower dome, triggering rapid contact‐area growth and series‐to‐parallel conduction, enabling unsaturated, intensity‐resolved ...
Jiayi Xu, Ming Lei, Yuanzhe Liang, Biao Qi, Ziyi Dai, Yong Zhao, Bingpu Zhou   +6 more
wiley   +1 more source

Implementation of a CC-CV wireless charging bidirectional resonant converter for electric vehicles

Wireless Power Transfer
In this study, a contactless bidirectional power converter with magnetic induction is proposed to transfer the power bi-directionally between a DC power grid and EV battery with a digital control mechanism.
Sen-Tung Wu, Jung-Yu Chen
doaj   +1 more source

A New Threshold Switching Device With Tunable Negative Differential Resistance Based on ErMnO3 Polymorphs

Advanced Functional Materials, EarlyView.
Polymorph engineering in ErMnO3 enables low‐voltage, forming‐free threshold switching with tunable negative differential resistance. Conducting orthorhombic regions embedded in an insulating hexagonal matrix provide controlled Joule‐heating‐enhanced Poole–Frenkel transport. The hexagonal phase prevents excessive heating and breakdown.
Rong Wu, Florian Maudet, Thanh Luan Phan, Wassim Hamouda, Richard Schroedter, Ahmet Samil Demirkol, Ronald Tetzlaff, Veeresh Deshpande, Catherine Dubourdieu   +8 more
wiley   +1 more source