Results 11 to 20 of about 3,588 (298)

Load-locked dc high voltage GaAs photogun with an inverted-geometry ceramic insulator

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2010
A new dc high voltage spin-polarized photoelectron gun has been constructed that employs a compact inverted-geometry ceramic insulator. Photogun performance at 100 kV bias voltage is summarized.
P. A. Adderley   +8 more
doaj   +2 more sources

Correlation analysis between ceramic insulator pollution and acoustic emissions

open access: yesTecnoLógicas, 2015
Most of the studies related to insulator pollution are normally performed based on individual analysis among leakage current, relative humidity and equivalent salt deposit density (ESDD).
Benjamín Álvarez-Nasrallah   +4 more
doaj   +3 more sources

Studi Pola Arus Bocor Isolator Keramik Selama Waktu Pemakaian 24 Jam

open access: yesRekayasa Hijau: Jurnal Teknologi Ramah Lingkungan, 2020
ABSTRAK Isolator merupakan komponen yang penting dijaga keandalannya dalam sistem transmisi dan distribusi tenaga listrik. Isolator rentan mengalami kegagalan akibat lingkungan, karena terpapar langsung kondisi dimana isolator tersebut terpasang.
Dini Fauziah   +2 more
doaj   +1 more source

Ceramic Thermal Insulator Based on Diatomite Obtained by Starch Consolidation Casting [PDF]

open access: yes, 2023
Researchers are continuously seeking to develop new materials to protect against inclement weather and thus optimize energy efficiency in housing. This research aimed to determine the influence of corn starch percentage on the physicomechanical and ...
Raúl Siche   +2 more
core   +2 more sources

A Hierarchical Mesoporous Insulation Ceramic

open access: yesNano Letters, 2019
Light-weight ceramic aerogels hold promise for superinsulation. However, its mechanical instability and complex manufacturing hampered its technical applications. In this study, we demonstrate lightweight pore-gradient ceramic aerogel-like foam monoliths (PGAFoams) through one-pot and in situ bubble supported pore gradient formation.
Ruizhe Yang   +7 more
openaire   +3 more sources

Using Field-Effect Gas Sensors for Monitoring H2 in Transformer Oil [PDF]

open access: yesMATEC Web of Conferences, 2020
Hydrogen can be released during the thermal decomposition of organic materials, therefore, monitoring its level in the working industrial high-voltage transformer oil allows you to identify the development of degenerative processes in advance, because ...
Litvinov Artur   +5 more
doaj   +1 more source

Use of waste ceramics to produce sustainable concrete: A review

open access: yesCleaner Materials, 2022
In the present construction industry, the utilization of ceramic materials is growing day by day in the form of ceramic tiles, electrical insulators, sanitary ware fittings, etc. But a huge quantity of ceramic materials goes to waste during manufacturing,
Ram Vilas Meena   +3 more
doaj   +1 more source

Classification of common discharges in outdoor insulation using acoustic signals and artificial neural network

open access: yesHigh Voltage, 2019
Condition monitoring of outdoor insulation systems is crucial to the integrity of distribution and transmission overhead lines and substations. The objective of this study is to use a commercial acoustic sensor along with artificial neural network (ANN),
Satish Polisetty   +4 more
doaj   +1 more source

Thermal-Electrical-Mechanical Simulation of High Pressure Spark Plasma Sintering (HP-SPS) Process [PDF]

open access: yesMATEC Web of Conferences, 2019
In the present work, we investigate the stresses distribution using a high pressure die during SPS (Spark Plasma Sintering) experiments. In this context, we used a finite element modeling (FEM) in the case of the sintering of an alumina sample, chosen as
Achenani Youssef   +3 more
doaj   +1 more source

Use of a Natural Clinoptilolite Monolith as a Negative Temperature Coefficient Thermistor

open access: yesEngineering Proceedings, 2023
Geomorphic clinoptilolite, a mechanically and thermally stable mineral substance, has very useful electrical properties due to the presence of extra-framework cations in the crystal structure. Indeed, owing to the electrical transport that alkaline earth
Loredana Schiavo, Gianfranco Carotenuto
doaj   +1 more source

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