Results 31 to 40 of about 30,179 (147)
THERMOCHEMICAL STABILITY OF INSULATING OILS [PDF]
Journal of Sustainable Energy, 2015 The widespread use of insulating oils (transformer oils) having mineral origin, because of their toxic organic substances and xenobiotic, poses a serious risk to the environment. Synthetic ester oils, although limited risk to the environment, its use
LINGVAY I., RADU E., UDREA O.
doaj
Egyptian Journal of Petroleum, 2020 Lubricating oil producers are shifting attention toward the use of renewable and biodegradable energy sources for the production of lubricating oils. This is necessitated by the depleting mineral based energy sources and the negative impact of continuous
F.J. Owuna +9 more
doaj +1 more source
Salāmat-i kār-i Īrān, 2018 Background and aims: Mineral oils are petroleum derivatives used in metalworking processes. In recent years, considering the carcinogenicity of less refined mineral oil, two separate threshold limit values considered in recent years.
Athena Rafieepour +3 more
doaj
EFFECT OF MINERAL AND VEGETABLE OIL ON DEFORMATION PROPERTIES OF CONCRETE
RUDN Journal of Engineering Research, 2017 The production or use of vegetable and mineral oils in industrial processes is one of the characteristics of industrial buildings. Negative impact of vegetable, mineral oil and petroleum products on concrete and reinforced concrete leads to decrease of ...
A P Svintsov, T SF Gamal, E E Shumilin
doaj +1 more source
Experimental investigations of mineral and ester-based oils at low temperature [PDF]
Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2014 The aim of this study is to create references to mineral oil and recommendations for design rules for ester oil applications. Interest in the application of natural and synthetic ester-based fluids in different types of high voltage power equipment has ...
Anđelković Miloš, Đorđević Dragan
doaj +1 more source
Acta Scientiarum Polonorum: Hortorum Cultus, 2017 The experiment assess the effectiveness of two mineral oils: Sunspray 850 EC (85% mineral oil) and Sunspray Ultra-Fine (98.8% mineral oil) on tulip ‘Leen van der Mark’ fields. Tulip plants were sprayed once a week for three weeks.
Barbara Marcinek +2 more
doaj
Experimental Investigation of the Use of Waste Mineral Oils as a Fuel with Organic-Based Mn Additive
Energies, 2018 The heat values of waste mineral oils are equal to the heat value of the fuel oil. However, heat value alone is not sufficient for the use of waste minerals oils as fuel.
Bülent Özdalyan, Recep Ç. Orman
doaj +1 more source
High Voltage, 2019 Insulation oil is an important dielectric in power devices, and many studies on mixed insulation oil have been conducted in recent years to improve the performance of insulation oils.
Dawei Feng +5 more
doaj +1 more source
LubricantsIn a previous experimental study, a high-frequency reciprocating rig tribotester was used to test several base oils, including a mineral oil and a vegetable oil, as well as a blend of the two, with and without the addition of carbon-based nanoparticles ...
Jack Nasr, Diana-Luciana Cursaru
doaj +1 more source
Toxicity and Biochemical Impacts of Garlic and Camphor Essential Oils against Aphis gossypii and Gynaikothrips ficorum Compared to Chitosan and Mineral Oil [PDF]
Journal of Plant Protection and PathologyAphis gossypii (Glover) (Hemiptera: Aphididae) and Gynaikothrips ficorum Marchal (Thysanoptera: Phlaeothripidae) are important economic insect pests in Egypt. They cause economic losses to many crops.
R. Abdullah, Wessam Aziz, N. Ghanim
doaj +1 more source