Results 21 to 30 of about 234,335 (333)

2.5D Flexible Wind Sensor Using Differential Plate Capacitors

open access: yesSensors, 2021
In this paper, a novel 2.5-dimensional (2.5D) flexible wind sensor is proposed based on four differential plate capacitors. This design consists of a windward pillar, two electrode layers, and a support layer, which are all made of polydimethylsiloxane ...
Yu Wan, Zhenxiang Yi
doaj   +1 more source

Polish origins of the Faculty of Mathematical and Natural Sciences of the University of Fribourg and the Polish contribution to the Fribourg industrial revolution (in Polish) [PDF]

open access: yesPrace Komisji Historii Nauki PAU, 2015
The article is dedicated to high-tech companies founded by Poles at the end of the 19th century in the rural canton of Fribourg in Switzerland. The text is divided into two parts. In the first part, the author attempts to present the economic, social and
Wojciech KOCUREK
doaj   +1 more source

Analysis of the DC-Link Voltage Ripple for the Three-Phase Voltage Source Converter under Nonlinear Output Current

open access: yesEnergies, 2022
The dc-link voltage ripple plays an important role in dc capacitor design for three-phase voltage source converters (VSCs). However, the analytical models of the dc-link voltage ripple have rarely been reported for VSCs with nonlinear output current ...
Shan Li, Lei Yang, Tao Wang
doaj   +1 more source

Design of a 100 kHz wide bandgap inverter for motor applications with active damped sine wave filter

open access: yesThe Journal of Engineering, 2019
In this study, a three-phase motor inverter with sinusoidal output voltages based on the application of gallium nitride transistors and advanced control is analysed.
Franz Maislinger   +4 more
doaj   +1 more source

Layer-by-Layer Materials for the Fabrication of Devices with Electrochemical Applications

open access: yesEnergies, 2022
The construction of nanostructured materials for their application in electrochemical processes, e.g., energy storage and conversion, or sensing, has undergone a spectacular development over the last decades as a consequence of their unique properties in
Eduardo Guzmán   +2 more
doaj   +1 more source

A new methodology called dice game optimizer for capacitor placement in distribution systems [PDF]

open access: yes, 2020
Purpose. Shunt capacitors are installed in power system for compensating reactive power. Therefore, feeder capacity releases, voltage profile improves and power loss reduces.
Al-Haddad, Kamal   +5 more
core   +3 more sources

Enhancing discharged energy density and suppressing dielectric loss of poly(vinylidene fluoride-ter-trifluoroethylene-ter-chlorofluoroethylene) by a sandwiched structure

open access: yesIET Nanodielectrics, 2018
Polymer dielectrics with high energy density and low dielectric loss are highly desired due to the rapid development of electric devices. Among known polymers, poly(vinylidene fluoride-ter-trifluoroethylene-ter-chlorofluoroethylene) P(VDF-TrFE-CFE) is ...
Yingke Zhu, Pingkai Jiang, Xingyi Huang
doaj   +1 more source

GaN-Based Versatile Waveform Generator for Biomedical Applications of Electroporation

open access: yesIEEE Access, 2020
Biomedical applications often require high-performance power supplies for diagnosis and treatment systems. In particular, modern electroporation techniques for cancer treatment require high-voltage generators with versatile waveform generation.
Hector Sarnago   +5 more
doaj   +1 more source

SIMULTANEOUS ALLOCATION OF MULTIPLE DISTRIBUTED GENERATION AND CAPACITORS IN RADIAL NETWORK USING GENETIC-SALP SWARM ALGORITHM

open access: yesElectrical engineering & Electromechanics, 2020
Purpose. In recent years, the problem of allocation of distributed generation and capacitors banks has received special attention from many utilities and researchers.
Chabane Djabali, Tarek Bouktir
doaj   +1 more source

The Influence of Thermal Processing with H2 Atmosphere on the Physical Properties and Microstructure for use in Electrolytic Capacitors of Nb [PDF]

open access: yesMaterials Research
This study evaluated the effect of thermal processing in hydrogen (H2) and argon (Ar) atmospheres on the physical and microstructural properties of niobium (Nb) powders for electrolytic capacitors.
A.S. Silva   +8 more
doaj   +1 more source

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