Results 21 to 30 of about 221,077 (342)

Effects of Temperature and Mechanical Stresses on the Dielectric Breakdown Strength of GF /EP Composites

open access: yesJournal of Harbin University of Science and Technology, 2018
To research the effects of temperature and mechanical stresses on the dielectric breakdown strength ( DBS) of Glass Fiber /Epoxy ( GF /EP) composites,the AC breakdown test has been carried out on the GF /EP composites under different temperatures ...
LIU Shu-mei, AO Ming, LI Zhong-hua
doaj   +1 more source

Design and characterization of dielectric filled TM$_{110}$ microwave cavities for ultrafast electron microscopy [PDF]

open access: yes, 2018
Microwave cavities oscillating in the TM$_{110}$ mode can be used as dynamic electron-optical elements inside an electron microscope. By filling the cavity with a dielectric material it becomes more compact and power efficient, facilitating the ...
A. H. Kemper   +11 more
core   +2 more sources

Predicting Wood Strength using Dielectric Parameters

open access: yesBioResources, 2015
There are various methods for nondestructive imaging of the internal structure of wood. A microwave nondestructive method based on the dielectric properties of a medium is an area of great interest for predicting wood strength in the worldwide wood ...
Hamiyet Şahin Kol, İlker Yalçın
doaj   +1 more source

Semiconductor quantum tubes: dielectric modulation and excitonic response [PDF]

open access: yes, 2010
We study theoretically the optical properties of quantum tubes, one-dimensional semiconductor nanostructures where electrons and holes are confined to a cylindrical shell.
Goldoni, Guido   +2 more
core   +2 more sources

Reliability Assessment of Statistical Distributions for Analyzing Dielectric Breakdown Strength of Polypropylene

open access: yesApplied Sciences, 2023
Various statistical distributions, such as Weibull, log-normal, and exponential functions, are frequently employed to interpret the dielectric breakdown (BD) strength data of insulating materials, including cross-linked polyethylene, low-density ...
Keon-Hee Park   +3 more
doaj   +1 more source

Dielectric confinement of excitons in type-I and type-II semiconductor nanorods [PDF]

open access: yes, 2010
We theoretically study the effect of the dielectric environment on the exciton ground state of CdSe and CdTe/CdSe/CdTe nanorods. We show that insulating environments enhance the exciton recombination rate and blueshift the emission peak by tens of meV ...
J I Climente   +4 more
core   +3 more sources

Morphological and Electrical Properties of Nanocellulose Compounds and Its Application on Capacitor Assembly

open access: yesInternational Journal of Polymer Science, 2020
The rise for innovation in the electrical industry is strongly driven by development of new materials. Features of new materials are changing design paradigms for engineers. In this paper, the electrical properties of films of cellulose nanocrystals were
José Alfredo Hernández-Flores   +7 more
doaj   +1 more source

Study the Effect of Volume Fraction of Mica With Different Particle Size on the Mechanical and Electrical Properties for Unsaturated Polyester Composites [PDF]

open access: yesEngineering and Technology Journal, 2012
This study was carried out to investigate the effect of adding mica (5, 10, 15, 20, 25 % vf) with variable particle size (35, 57, 70μm) on the mechanical and electrical properties of the unsaturated polyester composites.
Rafah A.Nasif
doaj   +1 more source

Dielectric breakdown properties of CF3I-N2 mixtures containing a small amount of SF6

open access: yesAIP Advances, 2019
CF3I-N2 mixtures have garnered much attention as potential SF6-substitutes due to their excellent dielectric strengths, and the dielectric strength of SF6-N2 mixtures has a good synergy effect. This paper attempts to propose an approach of adding a small
Hu Zhao, Yunkun Deng, Zengyao Tian
doaj   +1 more source

Optimization Studies on Improving the Dielectric Properties of Alkali Treated Fibers from Phaseolus Vulgaris Reinforced Polyester Composites by Central Composite Design

open access: yesJournal of Natural Fibers, 2021
This study investigates the dielectric efficiency of a composite prepared using a fiber extracted from Phaseolus vulgaris. The extraction of fiber was statistically modeled using face-centered central composite design.
B. Gurukarthik Babu   +5 more
doaj   +1 more source

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