Results 21 to 30 of about 3,337,621 (340)

An Experimental Study and Statistical Analysis on the Electrical Properties of Synthetic Ester-Based Nanofluids

open access: yesEnergies, 2022
The rise in power demand today necessitates its generation and transmission at high voltages. The efficient transmission of electric power requires transformers with an insulation system that exhibits excellent dielectric properties.
Suhaib Ahmad Khan   +4 more
semanticscholar   +1 more source

Investigation on the Electrical and Rheological Properties of AlN-Based Synthetic Ester Nanofluids

open access: yesIEEE Access, 2022
The present study deals with the characterization of electrical and rheological behaviour of the Synthetic ester fluid incorporated with various concentration of Aluminium nitride (AlN) nanoparticles.
P. Anju   +4 more
semanticscholar   +1 more source

A route to anionic hydrophilic films of copolymers of l-leucine, l-aspartic acid and l-aspartic acid esters [PDF]

open access: yes, 1975
A series of copolymers of l-leucine and β-benzyl-l-aspartate [Leu/Asp(OBz)] covering the range 30–70 mol % of l-leucine, was synthesized by the N-carboxyanhydride (NCA) method.
Bantjes, A., Feijen, J., Sederel, W.L.
core   +11 more sources

Application of Molecular Sieves for Drying Transformers Insulated with Mineral Oil, Natural Ester, or Synthetic Ester

open access: yesEnergies, 2021
A high level of moisture in the insulation system of power transformers is often the cause of their failure. This can be prevented by drying a transformer in its place of installation. In the article the application of molecular sieves (MS) in the drying
Mateusz K. Cybulski, P. Przybylek
semanticscholar   +1 more source

Influence of Dielectric Liquid Type on Partial-Discharge Inception Voltage in Oil-Wedge-Type Insulating System under AC Stress

open access: yesEnergies, 2023
This article describes the results of laboratory tests on an oil-wedge-type electrode system, which were supplemented by FEM (finite element method) simulations. The studies were focused on the comparison of the partial-discharge inception voltage (PDIV)
Bartlomiej Pasternak, Pawel Rozga
doaj   +1 more source

Kinetics of alkaline hydrolysis of synthetic organic esters [PDF]

open access: yesInternational Journal of Chemical Kinetics, 2021
AbstractThe hydrolysis of phthalates and other synthetic organic esters (SEs) in the indoor environment may be connected with poor indoor air quality and “sick building syndrome.” We have made laboratory measurements of the alkaline hydrolysis kinetics and mechanisms of 2,2,4‐trimethyl‐1,3‐pentanediol monoisobutyrate (TMPD‐MIB), butylparaben (BP), bis ...
Do Young Maeng, V. Faye McNeill
openaire   +1 more source

Synthetic approaches to difluoroindolecarboxylic acid ethyl esters [PDF]

open access: yesArkivoc, 2003
Synthetic approaches to ethyl 4,5-difluoroindole-2-carboxylate and ethyl 5,6-difluoroindole-2- carboxylate by Fischer indole synthesis and by the reaction of lithiated N-BOC-3,4-difluoro-2- methylaniline with diethyl oxalate or ethyl bromopyruvate were investigated.
SILVESTRI, Romano   +3 more
openaire   +2 more sources

Microbubbles enhanced synthetic phorbol ester degradation by ozonolysis [PDF]

open access: yes, 2014
A phorbol-12-myristate-13-acetate (TPA) is a synthetic analogue of phorbol ester (PE), a natural toxic compound of Euphorbiaceae plant. The oil extracted from plants of this family is useful source for primarily biofuel.
Kuvshinov, Dmitriy   +2 more
core   +2 more sources

Application of Near-Infrared Spectroscopy to Measure the Water Content in Liquid Dielectrics

open access: yesEnergies, 2022
The article discusses the methods used to measure the water content in liquid dielectrics. The pros and cons of currently used methods are presented. The main aim of the research was to check the possibility of using near-infrared spectroscopy to measure
Piotr Przybylek
doaj   +1 more source

Impulsive Breakdown of Mineral Oil and Natural and Synthetic Ester Liquids When Containing Varying Levels of Moisture

open access: yesIEEE Transactions on Plasma Science, 2021
This article reports and discusses the results of impulse breakdown study of different insulating liquids under highly divergent electric field conditions.
C. Williamson   +6 more
semanticscholar   +1 more source

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