In the process of preparing biodiesel using microreactors, cosolvents and homogeneous catalysts are generally used, which adds to separation cost. Hence, this study explored use an opposite-side feed micro-fixed-bed reactor with inner diameter 2 mm produce by transesterification soybean oil methanol without any cosolvent, in a fixed solid base acted as catalyst obstacles. A yield 99.4% was achi...

Addition of marine oils containing long-chain n-3 polyunsaturated fatty acids to the diet of pregnant sows may reduce piglet mortality. In previous experiments, when marine oils have been fed to pregnant sows, improvements in piglet tissue 22 : 6n-3 status have been accompanied by potentially undesirable decreases in 20 : 4n-6. The objective of the present experiment was to establish an amount ...

This paper describes the experimental study of the shaft oil feed mechanism of a rotary compressor. The oil contained in the shaft in which an oil pump is inserted is fed to the respective sliding surfaces of the subbearing section, eccentric section and main bearing section of the shaft by centrifugal force of shaft rotation. The oil feed pressure of shaft rotation is approximately 0.1 kg/cm2 ...

The purpose of this paper is to investigate the effect gross domestic product per capita, trade openness, renewable energy, energy consumption, foreign direct investment, carbon emission, and oil prices on innovation for selected 11 oil-importing oil-exporting countries compare results from both country groups see differences similarities. For purpose, we employ Poisson regression negative bino...

Here, we investigate the surface shear rheology of class II HFBII hydrophobin layers at the oil/water interface. Experiments in two different dynamic regimes, at a fixed rate of strain and oscillations, have been carried out with a rotational rheometer. The rheological data obtained in both regimes comply with the same viscoelastic thixotropic model, which is used to determine the surface shear...

Introduction: The health hazards resulting from exposure to formalin have given rise the need of developing safer alternative fixatives. Almond oil has been widely used in aromatherapy and cosmetic industry for its good penetrating skin-rejuvenating properties, whereas vitamin E is a known anti-oxidant. present study aimed test fixative efficacy almond with as compared formalin.
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Nigella sativa (N. sativa) grows in various parts of the world, particularly in Iran. It has been traditionally used as a folk remedy to treat a number of diseases. The seeds of this plant contain moisture, proteins, carbohydrates, crude fiber, alkaloids, saponins, ash, fixed oils and essential oil. The major components of the essential oil are thymoquinone, p-cymene, trans-anethole, 2-methyl-5...

the organization of the petroleum exporting countries (opec) has a key role in making universal political and economic decisions regarding petroleum. therefore, it seems highly important to assess the opec member’s degree of concentration and its monopoly.  this research, aims to assess and classify the concentration of petroleum export in the opec countries during the 1997-2011 period by the h...

The objective of this study was to evaluate different strategies for the application of entomopathogenic nematodes (EPN). Three different models of spray nozzles with air induction (AI 11003, TTI 11003 and AD-IA 11004), three spray pressures (207, 413 and 720 kPa), four different additives for tank mixtures (cane molasses, mineral oil, vegetable oil and glycerin) and the influence of tank mixtu...

The fixed oil of Laurus nobilis fruit is used as a fragrance, spice, and tea in the field food today; it medicine with its various effects such antifungal, antioxidant antimicrobial. While obtaining oil, presumed that different parts plant methods to be extraction will change yield pharmaceutical effect oil. Therefore, this study, three which are fruit, seed peel were extracted by cold pressed ...