Results 21 to 30 of about 179,026 (288)

A Molecular Dynamics Study of the Generation of Ethanol for Insulating Paper Pyrolysis

open access: yesEnergies, 2020
Cellulosic insulation paper is usually used in oil-immersed transformer insulation systems. In this study, the molecular dynamics method based on reaction force field (ReaxFF) was used to simulate the pyrolysis process of a cellobiose molecular model ...
Yiyi Zhang   +4 more
doaj   +1 more source

Investigations of the Applicability of Oil-Palm Empty Fruit Bunch as Paper Insulation in Transformers

open access: yesIEEE Access, 2022
The availability of the raw materials needed to produce fibre is decreasing as demand for fibre increases over time. In an effort, to preserve natural biodiversity and improve waste management, this research aims to substitute available raw materials for
Jaafar Adnan   +6 more
doaj   +1 more source

µTransparent insulating channels as components for miniaturized chemical separation Devices [PDF]

open access: yes, 2000
Currently, miniaturized devices that apply electro osmotic pumping or electrophoretic separations are mostly constructed by etching small insulating channels for supply and separation on glass substrates.
Berg, A. van den   +2 more
core   +2 more sources

Correlation between stabilizer consumption and degree of polymerization of thermally upgraded paper aged in insulating natural ester and insulating mineral oil

open access: yesPolímeros, 2016
Insulating paper holds significant importance in the insulation system of power transformers, and thus, its degradation is the subject of many studies.
Larissa Mildemberger   +5 more
doaj   +1 more source

Pseudospin S=1 formalism and skyrmion-like excitations in the three body constrained extended Bose-Hubbard model [PDF]

open access: yes, 2014
We have focused in the paper on the most prominent and intensively studied S=1 pseudospin formalism for extended bosonic Hubbard model (EHBM) with truncation of the on-site Hilbert space to the three lowest occupation states n = 0, 1, 2.
Moskvin, A. S.
core   +1 more source

Improving the thermal stability of 1-3 piezoelectric composite transducers manufactured using thermally conductive polymeric fillers [PDF]

open access: yes, 2003
With a view to improving the thermal stability of ultrasonic transducers prepared using 1-3 piezoelectric composites, the use of front face layers manufactured from thermally insulating and partially thermally conductive polymeric materials has been ...
Hayward, G.   +3 more
core   +1 more source

Temperature-dependent magnetization in diluted magnetic semiconductors [PDF]

open access: yes, 2002
We calculate magnetization in magnetically doped semiconductors assuming a local exchange model of carrier-mediated ferromagnetic mechanism and using a number of complementary theoretical approaches. In general, we find that the results of our mean-field
A. Chattopadhyay   +50 more
core   +1 more source

A Review of Research Status and Prospect of Vacuum Insulated Tubing Insulation System [PDF]

open access: yesE3S Web of Conferences, 2020
Vacuum heat insulating tubing is an important wellbore heat insulating facility for heavy oil thermal recovery at present. Its heat insulating performance directly affects the thermal recovery efficiency.
Yu Xing   +5 more
doaj   +1 more source

Study on the discharge characteristics along the surface of insulating media in the low air pressure and strong airflow environment

open access: yesAIP Advances, 2022
In this paper, a surface discharge test was conducted on a silicone rubber insulating sheet, an epoxy resin insulating sheet, a porcelain insulating sheet, and a glass insulating sheet by using an independently constructed test platform of insulating ...
Guangquan Zhang   +6 more
doaj   +1 more source

Thermally Accelerated Aging of Insulation Paper for Transformers with Different Insulating Liquids

open access: yesEnergies, 2021
The article presents issues related to the aging behavior of oil-paper insulations in transformers using different oil- and ester-based insulating fluids.
Tobias Münster   +3 more
doaj   +1 more source

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