Results 71 to 80 of about 70,093 (290)

Efficient Wireless Power Transfer With Capacitively Segmented RF Coils

open access: yesIEEE Access, 2020
Wireless power transfer systems have been widely applied in the field of portable and implantable devices, featuring contact-free and reliable energy supply.
Sebastian Stoecklin   +3 more
doaj   +1 more source

A Review of Power Transfer Systems for Light Rail Vehicles: The Case for Capacitive Wireless Power Transfer

open access: yesEnergies, 2023
Light rail vehicles (LRVs) are increasingly in demand to sustainably meet the transport needs of growing populations in urban centres. LRVs have commonly been powered from the grid by direct-contact overhead catenary systems (OCS); however, catenary-free
Kyle John Williams   +4 more
doaj   +1 more source

Pore Size Effects of Mesoporous N‐Doped Carbon Nanospheres as Advanced Support Material on the Activity of Molybdenum Sulfide Catalysts for the Hydrogen Evolution Reaction

open access: yesAdvanced Functional Materials, EarlyView.
By tuning the pore size of mesoporous N‐doped carbon (MPNC) nanospheres as support material for molybdenum sulfide, the electrochemical activity of the composite material for the hydrogen evolution reaction can be optimized. An ideal MPNC pore size of 60 nm allows a high number of molybdenum sulfide active sites while maintaining efficient proton and ...
Niklas Ortlieb   +3 more
wiley   +1 more source

Analysis and Design of a Multi-Resonant Circuit for Applications of Wireless Capacitive Power Transmission

open access: yesEnergies, 2022
Capacitive technology for wireless power transmission has been shown to be a good option for charging the batteries of electric vehicles. It offers better coupling between the transmitter and the receiver than inductive power transmission.
Eduardo Salvador Estevez-Encarnacion   +6 more
doaj   +1 more source

Thermodynamics of Ion Separation by Electrosorption

open access: yes, 2018
We present a simple, top-down approach for the calculation of minimum energy consumption of electrosorptive ion separation using variational form of the (Gibbs) free energy.
Bazant, Martin Z.   +5 more
core   +2 more sources

Ceramic Particle‐Reinforced Medium‐Entropy Alloys With Outstanding Mechanical Properties Prepared by Novel Micro‐LPBF

open access: yesAdvanced Functional Materials, EarlyView.
An innovative medium entropy alloy (MEA) composite material was fabricated via micro laser powder bed fusion (μ‐LPBF) with appropriate nano‐ceramic particles doping and exhibited markedly improved overall performance, including synergistically enhanced strength and ductility, increased hardness and compressive strength, improved wear resistance and ...
Zhonglin Shen, Mingwang Fu
wiley   +1 more source

Antenna Design for Semi-Passive UHF RFID Transponder with Energy Harvester [PDF]

open access: yes, 2015
A novel microstrip antenna which is dedicated to UHF semi-passive RFID transponders with an energy harvester is presented in this paper. The antenna structure designed and simulated by using Mentor Graphics HyperLynx 3D EM software is described in ...
Jankowski-Mihulowicz, P.   +2 more
core   +2 more sources

Real‐Time, Label‐Free Monitoring of Cell Behavior on a Bioelectronic Scaffold

open access: yesAdvanced Functional Materials, EarlyView.
A bioelectronic nanofibrous scaffold is introduced that supports cell growth while enabling real‐time, label‐free monitoring of cellular behavior through impedance measurements. The system correlates electrical signals with cell viability and surface coverage, offering an integrated platform for studying dynamic biological processes and advancing next ...
Dana Cohen‐Gerassi   +10 more
wiley   +1 more source

A Capacitive Pressure Sensor Interface IC with Wireless Power and Data Transfer

open access: yesMicromachines, 2020
This paper presents a capacitive pressure sensor interface circuit design in 180 nm XH018 CMOS technology for an implantable capacitive pressure sensor, which has a wireless power supply and wireless data transfer function.
Chaoping Zhang   +3 more
doaj   +1 more source

Smart vest for respiratory rate monitoring of COPD patients based on non-contact capacitive sensing [PDF]

open access: yes, 2018
In this paper, a first approach to the design of a portable device for non-contact monitoring of respiratory rate by capacitive sensing is presented.
Barbarov-Rostán, Gerardo   +7 more
core   +1 more source

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