Results 11 to 20 of about 964,849 (249)

A giant electrocaloric effect of a Pb0.97La0.02(Zr0.75Sn0.18Ti0.07)O3 antiferroelectric thick film at room temperature [PDF]

open access: yes, 2014
A 2-µm-Pb0.97La0.02(Zr0.75Sn0.18Ti0.07)O3 (PLZST) antiferroelectric (AFE) thick film with tetragonal structure was deposited on LaNiO3/Si (100) substrates via a sol-gel technique.
Hao, Xihong, Zhang, Qi, Zhao, Ye
core   +1 more source

Study of resonances in 1 x 25 kV AC traction systems with external balancing equipment [PDF]

open access: yes, 2016
© 20xx IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new ...
Mesbahi, Nadhir   +2 more
core   +2 more sources

Effect of electrospinning parameters on the air filtration performance using electrospun polyamide-6 nanofibers [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2017
Due to their high filtration efficiency and low basis weight nanofibrous filters are suitable for filtration applications. The objective of this study was to investigate the effect of electrospinning parameters including polymer solution concentration ...
Aliabadi Majid
doaj   +1 more source

Optimization of Imaging Parameters in Micro-CT Scanner Based On Signal-To-Noise Ratio for the Analysis of Urinary Stone Composition [PDF]

open access: yesIranian Journal of Medical Physics, 2020
Introduction: Micro-CT scanner with a resolution of about 5 micrometers is one of the modalities used to create three-dimensional/two-dimensional images of urinary stones.
Leni Fitri   +4 more
doaj   +1 more source

Influence of High-Speed Train Power Consumption and Arc Fault Resistances on a Novel Ground Fault Location Method for 2 × 25 kV Railway Power Supply Systems

open access: yesEnergies, 2018
The 2 × 25 kV power supply system is the most frequently used traction rail system to provide the huge power needed by high-speed trains.
Carlos A. Platero   +3 more
doaj   +1 more source

Spatial Magnetic-Field Description Method Aimed at 2 × 25 kV Auto-Transformer Power Supply System in High-Speed Railway

open access: yesApplied Sciences, 2018
Complete and accurate spatial magnetic field description is the premise of effectively assessing the power supply capability of a high-speed railway (HSR).
Yunchuan Deng   +3 more
doaj   +1 more source

Autotransformer fed traction power supply system: analysis, modeling and simulation

open access: yesGlobal Energy Interconnection, 2018
For many decades, Ethiopia had been using a meter gauge railway from Addis Ababa to the red sea port of Djibouti. Currently, the century old railway is completely replaced by a brand new standard gauge electrified railway line aiming to connect the ...
Getachew Biru Worku, Asegid Belay Kebede
doaj   +1 more source

Study of resonances in 1 x 25 kV AC traction systems [PDF]

open access: yes, 2015
AC traction systems are 1 x 25 or 2 x 25 kV 50-Hz single-phase, non-linear, time-varying loads that can cause power quality problems. One of the main concerns about these systems is voltage distortion, because adjustable-speed drives for trains may ...
Monjo Mur, Lluís, Sainz Sapera, Luis
core   +4 more sources

Normally-off β-Ga2O3 MOSFET with an Epitaxial Drift Layer

open access: yesMicromachines, 2022
A normally-off β-Ga2O3 metal-oxide-semiconductor field-effect transistor (MOSFET) is proposed using a technology computer-aided design (TCAD) device simulation, which employs an epitaxial drift layer grown on an n-type low-doped body layer. The low-doped
Chan-Hee Jang   +2 more
doaj   +1 more source

Charge injection, electroluminescence, and ageing of an epoxy resin in high divergent fields [PDF]

open access: yes, 2000
[INTRODUCTION]Most experimental studies of electrical ageing have concentrated on semi-crystalline polymers such as those used in cable insulation and capacitors (see for example [1]). Theoretical models [2-4] for electrical ageing have been developed on
Dissado, L. A.   +5 more
core   +1 more source

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