Results 141 to 150 of about 23,991 (249)

Enhancement of power transformer state of health diagnostics based on fuzzy logic system of DGA [PDF]

open access: yes, 2019
Aburaghiega, Ehnaish   +3 more
core   +1 more source

Influence of mineral oil and additives on microhardness and surface chemistry of magnesium oxide (001) surface [PDF]

open access: yes
X-ray photoelectron spectroscopy analyses and hardness experiments were conducted with cleaved magnesium oxide /001/ surfaces. The magnesium oxide bulk crystals were cleaved into specimens along the /001/ surface, and indentations were made on the ...
Buckley, D. H., Miyoshi, K., Shigaki, H.
core   +1 more source

Effect of thermally aged oil on space charge dynamics in oil/paper insulation system

open access: yes, 2011
The formation of space charge in oil/paper insulation system can lead to material degradation in the high electrical field region and affect system reliability.
Chen, George, Hao, Jian, Liao, Ruijin
core  

NASA five-ball fatigue tester: Over 20 years of research [PDF]

open access: yes
Studies were conducted to determine the effect on rolling-element fatigue life of contact angle, material hardness, chemistry, heat treatment and processing, lubricant type and chemistry, elastohydrodynamic film thickness, deformation and wear, vacuum ...
Anderson, W. J.   +2 more
core   +1 more source

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