Results 11 to 20 of about 4,890,068 (298)
Effects of ZnO magnetron sputtering on surface charge and flashover voltage of oil-impregnated paper
High Voltage, 2019 With the aim of exploring an alternative method of nano-doping in cellulose paper and improving flashover strength of oil-impregnated paper, radio frequency (RF) magnetron sputtering method is introduced into the structural modification of insulating ...
Boxue Du +4 more
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The surface charge of trypanosomatids [PDF]
Anais da Academia Brasileira de Ciências, 2002 The surface charge of trypanosomatids was evaluated by means of the binding of cationic particles, as visualized by electron microscopy and by direct measurements of the electrophoretic mobility of cells. The results obtained indicate that most of the trypanosomatids exhibit a negatively charged surface whose value is species specific and varies ...
openaire +5 more sources
Gas–solid interface charge characterisation techniques for HVDC GIS/GIL insulators
High Voltage, 2020 Surface charge accumulation on the spacers is one of the key issues restraining the development of HVDC GIS/GIL. The precise measurement of surface charge properties provides the basis for further study of the surface charge transport mechanism as well ...
Lei Zhang +13 more
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High Voltage, 2021 PEEK (polyetheretherketone) and N2 are used in the packaging of high‐voltage power electronics as the frame material and insulation gas, respectively. The surface discharge behaviours of PEEK in N2 under positive repetitive square voltage are the main ...
Ye Li +4 more
doaj +1 more source
IET Generation, Transmission & Distribution, 2022 The transient surface charging characteristics of a tri‐post insulator in a ± 500 kV direct current gas‐insulated transmission lines (DC‐GIL) filled with sulfur hexafluoride (SF)6 gas are investigated.
Xiaolong Li +5 more
doaj +1 more source
Physical Review E, 2017 Experiments in several laboratories have demonstrated that identical materials brought into repeated contact generate unexplained and growing surface charge domains. Here we show that the growth of charge from these experiments can be fitted to a previously developed first-principles model for contact charging based on feedback of random surface ...
Troy Shinbrot +2 more
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Tribo-electric Charging and Adhesion of Cellulose Ethers and their Mixtures with Flurbiprofen [PDF]
, 2014 The pervasiveness of tribo-electric charge during pharmaceutical processing can lead to the exacerbation of a range of problems including segregation, content heterogeneity and particle surface adhesion.
Šupuk, Enes +4 more
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Charge transport and accumulation around the cone-type insulator in SF(6)-filled 550 kV DC GIL
The Journal of Engineering, 2019 The gas-insulated transmission line (GIL) has the advantages of large transmission capacity, high operation reliability and environmental friendliness. It is suitable for the high voltage direct current (HVDC) power transmission of hydropower stations or
Bo Zhang +5 more
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Surface charges toolkit for gravity [PDF]
International Journal of Modern Physics D, 2020 These notes provide a detailed catalog of surface charge formulas for different classes of gravity theories. The present catalog reviews and extends the existing literature on the topic. Part of the focus is on reviewing the method to compute quasi-local surface charges for gauge theories in order to clarify conceptual issues and their range of ...
Ernesto Frodden, Diego Hidalgo
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Effect of long-term fluorination on surface electrical performance of ethylene propylene rubber
High Voltage, 2019 To investigate the effect of fluorination on surface electrical performance of ethylene propylene rubber (EPR), four pieces of EPR specimens are prepared and fluorinated for different duration ranging from 120 min to 480 min.
Rujia Men +7 more
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