Results 31 to 40 of about 469,970 (301)
Dielectric characterisation of Fe(3)P nanoparticles based ester oil
IET Nanodielectrics, 2018 The insulation as the root source of failure and ageing assessor makes it a crucial point for any power equipment design. The transformer's insulation requires an efficient dielectric fluid that acts as an ideal electrical insulant and better thermal ...
Qasim Khan +2 more
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Influence of Frequency and Distance on Acoustic Emission Velocity Propagating in Various Dielectrics
Applied Sciences, 2020 The results obtained for the measurements of acoustic emission (AE) signal parameters emitted in three dielectric liquids are presented in this paper. In particular, the velocity of AE wave was calculated based on the time of arrival of the AE signal.
Daria Wotzka
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Application of Near-Infrared Spectroscopy to Measure the Water Content in Liquid Dielectrics
Energies, 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
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Triterpene Esters: Natural Products from Dorstenia arifolia (Moraceae) [PDF]
Molecules, 2013 The phytochemical study of Dorstenia arifolia Lam. (Moraceae) has led to the identification of 18 triterpenes esterified by fatty acids, five triterpenes without esterification, 12 triterpenes esterified by acetic acid, together with a known furanocoumarin: α-amyrin (1), β-amyrin (2) α-amyrin acetate (3) β-amyrin acetate (4), α-amyrin octanoate (5), β ...
Maria Auxiliadora C. Kaplan +3 more
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Microbubbles enhanced synthetic phorbol ester degradation by ozonolysis [PDF]
, 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
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Vitamin A Transport Mechanism of the Multitransmembrane Cell-Surface Receptor STRA6. [PDF]
, 2015 Vitamin A has biological functions as diverse as sensing light for vision, regulating stem cell differentiation, maintaining epithelial integrity, promoting immune competency, regulating learning and memory, and acting as a key developmental morphogen ...
Kassai, Miki +4 more
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Energies, 2020 Natural and synthetic esters are liquids characterized by insulating properties, high flash point, and biodegradability. For this reason, they are more and more often used as an alternative to conventional mineral oils.
Maciej Zdanowski
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Mechanism and Application of Baker–Venkataraman O→C Acyl Migration Reactions [PDF]
, 2014 This literature review focuses on the O→C acyl migration of aryl esters to yield the corresponding 1,3-dicarbonyl products—a reaction known as the Baker–Venkataraman rearrangement—and outlines their subsequent transformations.
Ameen, Dana, Snape, Timothy James
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IEEE Access, 2020 The characteristics of lighting impulse breakdown voltage (LI-BDV) constitute key performance indicators of insulating materials, especially in insulations based on liquids and liquid-paper for high voltage applications.
Abderrahmane Beroual, Usama Khaled
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Dual-Temperature Evaluation of a High-Temperature Insulation System for Liquid-Immersed Transformer
Energies, 2018 A high-temperature oil–paper insulation system offers an opportunity to improve the overloading capability of distribution transformers facing seasonal load variation.
Xiaojing Zhang +6 more
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