نتایج جستجو برای: viscosity index

تعداد نتایج: 429264  

Mazandarani E. Mehran Aghaie, Sadeghi ghari H.

The lubricating oils in each mechanical device are affected by shear forces. Polymers in lubricating oils engine, in particular, undergo many changes because of the influence of the applied forces. Awareness of these changes can help us to design optimal formulations. In this work, shear stability of four commercial was studied. Calculation of various parameters about viscosity in the enhancing...

2015
Dipika Agrahar Murugkar Paridhi Gulati Nachiket Kotwaliwale Chetan Gupta Subir Kumar Chakraborty

Nutrient dense instant porridge was prepared with flours from corn, whole wheat, malted finger millet, sprouted whole green gram, soy protein isolates, unsalted roasted peanuts, dairy whitener and dried papaya in different ratios to make the multi-nutrient mix. Processing parameters viz. Flour Concentration (FC):10-20%, Sugar Concentration (SC): 50-75% and Cooking Time (CT): 1-5 min were optimi...

2008
Arjun B. Chhetri

As crude oil price reach a new high, the need for developing alternate fuels has become acute. Alternate fuels should be economically attractive in order to compete with currently used fossil fuels. In this work, biodiesel (ethyl ester) was prepared from waste cooking oil collected from a local restaurant in Halifax, Nova Scotia, Canada. Ethyl alcohol with sodium hydroxide as a catalyst was use...

Journal: :Scientific American 1919

Journal: :journal of sciences islamic republic of iran 0

it has been shown that the boltzmann equation for the viscosity of the a-phase of superfluid 3he at low temperatures has the same form as for a normal ferrni liquid. the viscosity coefficients a, b, c, d and e are derived exactly. the h , parameter plays an important role in determining the temperature dependence of the viscosity coefficients

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2008
vahid samavati sayed hadi razavi sayed mohammad mousavi

the effects of some synthetic sweeteners on the rheological and physical properties of guar gum in dilute solutions were investigated.measurements include the determination of intrinsic viscosity and the particle size, surface weighted mean [d3, 2], volume weighted mean [d4,3] and specificsurface area ofguar gum andsyntheticsweeteners mixtures. the concentration of these sweeteners were 0, 0.1,...

Journal: :transport phenomena in nano and micro scales 2014
s. akbarzadeh m. farhadi k. sedighi m. ebrahimi

in this paper, the measurement of the viscosity of zno in ethylene glycol, propylene glycol, mixture of ethylene glycol and water (60:40 by weight), and a mixture of propylene glycol and water (60:40 by weight) and the thermal conductivity in ethylene glycol and propylene glycol as base fluids in the range of temperature from 25 ºc to 60 ºc are investigated. the results indicate that as the tem...

Journal: :transport phenomena in nano and micro scales 2015
m. izadi m. m. shahmardan a. behzadmehr a. m. rashidi a. amrollahi

this paper was aimed to address the modeling of effective thermal conductivity and viscosity of carbon structured nanofluids. response surface methodology, d_optimal design (dod) was employed to assess the main and interactive effects of temperature (t) and weight percentage (wt %) to model effective thermal conductivity and viscosity of multi wall and single wall carbon nanotube, cvd and rgo g...

Journal: Journal of Nuts 2014
M. Eshaghi M. H. Azizi S. Khorasani

This research aimed to assess and determine rheological properties of chocolate pistachio produced from various volumes of monoglycoside (1% and 2%), date powders (34, 38 and 42%) and pistachio pastes. The analyses were performed at temperaturesof 45 ºC, 65 ºC after 3 and 5 hours of processing. These products were found to exhibit nonNewtonian, pseudo-plastic behavior at all treatments. Apparen...

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