Results 11 to 20 of about 159,584 (286)
This paper deals with a comparative study of AC and DC breakdown voltages of based mineral oil mixtures with natural and synthetic esters mainly used in high voltage power transformers.
Abderrahmane Beroual +3 more
doaj +3 more sources
¿Raúl, te acuerdas…? Neruda y González Tuñón ante la Guerra Civil española [PDF]
The mechanism mass change in system «gas–coalhydrargium a liquid» is considered. The mathematical model mass change off water of mineral oils is developed.
А.Й. Пашинський +2 more
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In this work, three different type of mineral oils, with same amount (%1 as ratio), have been added to two different soap recipes from animal origin oils and vegetable derived fatty acids that have the same rate of foaming agent and similar critical ...
Esra GÜL +2 more
doaj +1 more source
Wear resistance evaluation of palm fatty acid distillate using four-ball tribotester [PDF]
Petroleum reserves are declining nowadays while ironically petroleum is a major source of pollution despite many uses. Researchers are in effort to find an alternative to replace petroleum as a lubricant.
Ani, Farid Nasir +2 more
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Lipoid pneumonia can develop from exposure to different types of oil, but occupational exposure is rare. A 58‐year‐old woman was referred to our hospital for patchy airspace opacities in the lungs with lower lobe predominance on chest computed tomography.
Sunji Park, Ji Eun Park, Jaehee Lee
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A new approach to understanding the frequency response of mineral oil [PDF]
Dielectric spectroscopy is non-invasive diagnostic method and can give information about dipole relaxation, electrical conduction and structure of molecules.
Chen, George +4 more
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Impedance Spectroscopy as a Tool for the Diagnosis of the State of Vegetable Oils Used as Lubricants
In this research the performance of sesame seeds and sweet almond oils was analyzed used as lubricants in preventive wear testing (AW) in a four-ball tribometer. The impedance spectroscopy technique was used in the frequency range of 0.2 to 2000 kHz as a
E. Delgado, W. Aperador, A. Hernández
doaj +1 more source
CORROSIVE TRENDS OF MINERAL OILS AND EFFECTS OF SUCH DISTINCTIVE COMPOSITES ON THE METALS [PDF]
The investigations of the impact of corrosive properties in mineral oils on the corrosion rates of different types of metals and the nature of such corrosion with respect to the corrosive compounds of mineral oils and the metal types were the aims and ...
Jagath K. PREMACHANDRA
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Reducing environmental pollution caused by construction plant [PDF]
Quantifiable data produced in a national report by the Environment Agency of England and Wales entitled ‘Water pollution incidents in England and Wales 1997’ and published by the Stationery Office in 1998, identifies that of over 3,723 substantiated ...
Jackson, F, Morledge, R
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Assessing Friction Characteristics of Liquid Lubricants [PDF]
The decline of fossil fuel reserves and the increasing awareness of greenhouse gas emissions have been the primary driving forces behind the need to conserve energy.
Hargreaves, Douglas J., Tang, John C. H.
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