Results 31 to 40 of about 208,038 (301)

On-Site Wireless Power Generation

open access: yes, 2018
Conventional wireless power transfer systems consist of a microwave power generator and a microwave power receiver separated by some distance. To realize efficient power transfer, the system is typically brought to resonance, and the coupled-antenna mode
Alu, A.   +6 more
core   +1 more source

Extendable Array Rectenna for a Microwave Wireless Power Transfer System

open access: yesIEEE Access, 2021
In this study, a rectenna is adopted in a microwave-based wireless power transfer system to rectify the received radio frequency (RF) to DC power. Each rectenna comprises a DC-DC converter at the DC output port to ensure a stable power supply and a ...
Jeong-Min Woo   +6 more
doaj   +1 more source

Synchronization of spin-transfer oscillators driven by stimulated microwave currents

open access: yes, 2005
We have simulated the non-linear dynamics of networks of spin-transfer oscillators. The oscillators are magnetically uncoupled but electrically connected in series.
A. Fert   +7 more
core   +1 more source

Ranging On-Demand Microwave Power Transfer in Real-Time

open access: yesIEEE Microwave and Wireless Components Letters, 2021
This letter presents a novel system for real-time ranging wireless power transfer (WPT) “on-demand.” This is obtained by duty-cycling a frequency diverse array (FDA) and by suitably choosing the time delay of the pulse. First, the theoretical design of the time- and frequency-dependent array is developed, and then it is applied to predict the ranging ...
Fazzini E., Costanzo A., Masotti D.
openaire   +2 more sources

Computer simulation of microwave-assisted drying: Coupled influence of microwave power and pulse ratio on product and process characteristics

open access: yesCurrent Research in Food Science
Shrinkage consideration is pivotal in modeling heat and mass transfer during drying processes. This study investigated the interactive effects of microwave power and pulse ratio on various properties of potato slices during drying. The drying process was
Jalal Dehghannya, Mahdi Habibi-Ghods
doaj   +1 more source

Power transfer model of electromagnetic energy harvesting used in mine tunnels

open access: yesGong-kuang zidonghua, 2016
In order to apply electromagnetic energy harvesting technology in mine tunnels, the power transfer characteristics of electromagnetic energy harvesting were studied using experimental measurement and statistical analysis method.
LIU Xiaoming, MAN Zhongcheng, ZHAO Duan
doaj   +1 more source

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

open access: yesAdvanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk   +7 more
wiley   +1 more source

Convective and Microwave Assisted Drying of Wet Porous Materials with Prolate Spheroidal Shape: A Finite-Volume Approach

open access: yesAgriculture, 2020
Convective heating is a traditional method used for the drying of wet porous materials. Currently, microwave drying has been employed for this purpose, due to its excellent characteristics of uniform moisture removal and heating inside the material ...
Edna G. Silva   +10 more
doaj   +1 more source

Recent Advances in Joint Wireless Energy and Information Transfer

open access: yes, 2014
In this paper, we provide an overview of the recent advances in microwave-enabled wireless energy transfer (WET) technologies and their applications in wireless communications. Specifically, we divide our discussions into three parts. First, we introduce
Bi, Suzhi, Ho, Chin Keong, Zhang, Rui
core   +1 more source

Impact of Pre‐Oxidation Treatments on a Recycled MgO/Steel‐Composite as Carbon Free Anode in Aluminum‐Electrolysis Environments

open access: yesAdvanced Engineering Materials, EarlyView.
Cermets (60 vol.% AISI 316L stainless steel, 40 vol.% recycled MgO), intended for use in aluminum electrolysis, were pre‐oxidized in three furnaces with different heating technologies and subjected to a cryolite corrosion test. The different atmospheres influenced the formation of oxide layers, which in turn affected corrosion resistance and ...
Patricia Kaiser   +4 more
wiley   +1 more source

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