نتایج جستجو برای: grease
تعداد نتایج: 1378 فیلتر نتایج به سال:
Foreign Direct Investment (FDI) is seen as a significant driver of economic growth and potential ally in the struggle against poverty inequality, making emerging countries focus on attracting this type investment. Thus, understanding factors that impact concentration regional FDI essential to verifying which characteristics encourage or deter foreign Likewise, literature has explored institutio...
Esterification and transesterification of high free fatty acid (FFA) oils to fatty acid alkyl ester (FAAE) by sol-gel entrapped lipase B from Candida antarctica (CalB) and lipase from Burkholderia cepacia were investigated. The optimal conditions for the esterification catalyzed by the immobilized CalB were determined to be 50 °C, 1.7:1 molar ratio of methanol to fatty acid, and 0.36 g of water...
An instrumentation technique is developed using embedded capacitive sensors to measure the thickness and evenness of coverage of a thin layer of dielectric thermal interface material (TIM) between two substrates. The technique requires an array of sensors embedded into one substrate, with an electrically conductive opposing substrate. Local capacitance measurements are sensitive to both local b...
Lubrication plays a key role in increasing availability of wind turbines, extending unit life and reducing operating costs. In view the problems valve core lag, grease hardening difficulty removing waste oil centralized lubrication system, an improved system recovery were designed this study. Discharge bearing cavity was simulated under different vacuum conditions. It shown that degree is propo...
This paper investigates the growth-corruption relationship in a sample of 146 countries for the period 1984-2009 using panel generalized method of moments. While negative effects of corruption on growth have drawn economists’ interest in recent years, our main contribution is to examine the effects by employing the hierarchical polynomial regression to evaluate the relationship after controllin...
there are many potential sources of stormwater pollutants in urban areas; one of these sources is gas stations, which are numerous and spread city-wide. a study was conducted to evaluate the water quality of runoff from gas stations in the city of tijuana, mexico. pollutant loads in runoff from gas stations in the study area were higher than in other published studies. the estimated loads from ...
in this research performed during 1993-1994, the effluent of behran oil refmery, in south of tehran, which produces different types of industrial oil and greases, was studied and 3 methods of gravity separation, coagulation and flocculation and dissolved air flotation were investigated. in the first phase of the survey, the quality and quantity of the effluent were determined. this showed an av...
A thermal bridge is a part of the building envelope where the otherwise uniform thermal resistance is significantly changed by: • Full or partial penetration of the building envelope by materials with a different thermal conductivity and/or • A change in thickness of the structure and/or • A difference between internal and external areas, such as occur at wall-floor-ceiling junctions. INTRODUCT...
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