نتایج جستجو برای: critical surface tension

تعداد نتایج: 1133812  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1391

in this thesis protic and aprotic ammonium-based ionic liquids were synthesized and their surface tensions were measured in the range of 298-373k. the protics are alkyl ammonium-based ils with the carboxylate (formate, acetate, propionate) anion and aprotics are quaternary ammonium-based ils with bis(trifluoromethylsulfonyl)imide anion. capillary rise method was used for surface tension measure...

Journal: :iranian journal of pharmaceutical research 0
h orafai p kallinteri m garnett s huggins g hutcheon c pourcain

nanoparticles made of biodegradable polymers has become the best approach for nanoparticle making due to their compatibility with the human body. new glycerol adipate polymers with hydroxyl group substituted with different percent of acyl group, sited as figures within the abbreviated name in the text, and triptophan were synthesized and proposed to be used in the preparction of dexamethason ph...

Journal: :international journal of environmental research 0
e. moliterni chemical engineering department. institute for chemical and environmental technology (itquima), university of castilla-la mancha, 13071, ciudad real, spain r. gómez chemical engineering department. institute for chemical and environmental technology (itquima), university of castilla-la mancha, 13071, ciudad real, spain l. rodríguez alquimia soluciones ambientales s.l., c/ de la calidad 3, 13250 daimiel (ciudad real), spain f.j. fernández chemical engineering department. institute for chemical and environmental technology (itquima), university of castilla-la mancha, 13071, ciudad real, spain j. villaseñor chemical engineering department. institute for chemical and environmental technology (itquima), university of castilla-la mancha, 13071, ciudad real, spain

this work studies the biosurfactants production which enables the diesel biodegradation byusing mixed microbial consortia from polluted sites. it was carried out by culturing three microbial consortia(named as xa, xb and xc) obtained from polluted soils, and enriched in diesel as sole carbon source.batchexperiments were done to study the effects of three variables (temperature,hydrocarbon conce...

Journal: :international journal of environmental research 2012
e. moliterni r. gómez l. rodríguez f.j. fernández j. villaseñor

this work studies the biosurfactants production which enables the diesel biodegradation byusing mixed microbial consortia from polluted sites. it was carried out by culturing three microbial consortia(named as xa, xb and xc) obtained from polluted soils, and enriched in diesel as sole carbon source.batchexperiments were done to study the effects of three variables (temperature,hydrocarbon conce...

Journal: :international journal of nano dimension 0
j. e. jam composite materials and technology center, mut, tehran, iran. a. t. samaei composite materials and technology center, mut, tehran, iran.

in this paper, the modified euler-bernoulli beam model is presented to examine the influence of surface elasticity and residual surface tension on the critical force of axial buckling of nanotubes in the presence of rotary inertia. an explicit solution is derived for the buckling loads of microscaled euler beams considering surface effects. the size-dependent buckling behavior of the nanotube d...

A. T. Samaei J. E. Jam,

In this paper, the modified Euler-Bernoulli beam model is presented to examine the influence of surface elasticity and residual surface tension on the critical force of axial buckling of nanotubes in the presence of rotary inertia. An explicit solution is derived for the buckling loads of microscaled Euler beams considering surface effects. The size-dependent buckling behavior of the nanotube d...

A. T. Samaei J. E. Jam,

In this paper, the modified Euler-Bernoulli beam model is presented to examine the influence of surface elasticity and residual surface tension on the critical force of axial buckling of nanotubes in the presence of rotary inertia. An explicit solution is derived for the buckling loads of microscaled Euler beams considering surface effects. The size-dependent buckling behavior of the nanotube d...

ژورنال: مهندسی دریا 2016

In this study, two-dimensional flow analysis around cross-section of the surface piercing propeller with a linear profile trailing edge is studied in different Weber numbers. Due to collision of the two-dimensional cross section with surface water, aeration zone is created on the suction side that is heavily impact on the results. The ventilation pattern is a function of the geometrical paramet...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2007
reza tahery hamid modarress

by considering the fact that the surface tension of a real fluid arises from a combination of both repulsive and attractive forces between molecules, a new expression for the interfacial tension has been derived from scaled particle theory (spt)  based on the work of cavity formation and the interaction energy between molecules. at the critical temperature, the interfacial tension between coexi...

Journal: :Journal of the Korean Society of Mineral and Energy Resources Engineers 2019

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