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The purpose of this work was to study the condensation heat transfer and pressure drop characteristics ofHFC-134a in a micro-fined tube with an 18 degree helix angle and to compare them to those in a smooth tube for various operating conditions.The experimental test facility is designed, developed and is used to determine the condensation HTC and pressure drop in smooth and micro-fin tubes for various HFC refrigerants namely HFC-134a, R-404A, R-407C, R-507A. The experimentation covers wide range of operating parameters such as mass flux and condensing temperatures. The...

Prevalence of yoke gall was studied under three different situations-among clinical cases, among animals disposed for sale and slaughter. Classification and evaluation of eight different treatments was made in 57 clinical cases of yoke gall. The bullocks were divided into eight groups for the evaluation of treatment. In group I, diclofenac sodium injection and topical application of Khand ointment (turmeric and lime juice) were given. In group II, diclofenac sodium injection and topical application of Khand ointment and dimethyl sulfoxide liquid were used. In group III, only topical...