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Приказ резултата 11-20 од 42
The flow of Newtonian and drag-reducing fluids around sphere
(Serbian Chemical Society, Belgrade, 1996)
The flow around a sphere placed coaxially in a cylindrical tube, the separation of the boundary layer and the wake shedding phenomena are investigated. The results of the simultaneous determination of the drag coefficients ...
On the serrated yielding in AlMg6.5 alloy sheet
(Serbian Chemical Society, Belgrade, 1998)
Room temperature tensile tests were performed on AlMg6.5 alloy sheet, with Initial strain rates of 6.7x10(4) s(1), 6.7x10(-3) s(-1) and 6.7x10(-2) s(-1), after imposing 70% cold rolling reductions, and annealing at 320 ...
Modeling of drawing thin glass sheet from a preform
(Serbian Chemical Society, Belgrade, 1998)
A one-dimensional model of thin glass sheet drawing has been developed. This model includes momentum, heat and mass balance equations. The density, viscosity and specific heat of the glass were calculated as functions of ...
Reactivity of beta-aroylacrylic acids with diazodiphenylmethane
(Serbian Chemical Society, Belgrade, 1998)
The rate constants for 10 trans-substituted beta-aroylacrylic acids in their reaction with diazodiphenylmethane (DDM) were determined in ethanol at 30 degrees C. The intention was to study the transmission of electronic ...
Application of the MvdW1 and HVOS-NRTL mixing rules to the simultaneous correlation of excess enthalpies and W-shaped excess heat capacities data of 1,3-dioxolane plus n-alkane systems
(Serbian Chemical Society, Belgrade, 1999)
The Peng-Robinson-Stryjek-Vera (PRSV) equation of state (EOS) coupled with a modified two parameter van der Waals one-fluid mixing rule (MvdW1) and the Huron-Vidal-Orbey-Sandler mixing rule incorporating the NRTL equation ...
Preparation of thermoplastic starch
(Serbian Chemical Society, Belgrade, 1997)
Native starch and WX-starch, i.e., native starch enriched with amylopectin, were mixed with plasticizers and thermomechanically treated in a twin screw mixer in order to obtain thermoplastic starch. Ethylene glycol, propane ...
Immobilization of lipase on a hydrophobic zeolite type Y
(Serbian Chemical Society, Belgrade, 1998)
Lipase from Candida cylindracea was immobilized by adsorption on a hydrophobic zeolite type Y. The maximal amount of bound protein of 8.2 mg g(-1) and an immobilization efficiency of 33% were achieved under optimum conditions. ...
Analysis of mass transfer in beer dialysis and diafiltration with two different membranes
(Serbian Chemical Society, Belgrade, 1996)
Experimental investigation of selective alcohol removal from beer by dialysis and dialysis with transmembrane pressure (diafiltration), using two different hollow-fiber membranes: Cuprophan (regenerated cellulose) and ...
Mass spectrometric study of glassy carbon surface stability
(Serbian Chemical Society, Belgrade, 1996)
The combinaton of temperature-programmed desorption (TPD) and quadrupole mass spectrometry was used to investigate glassy carbon surface stability. TPD experiments provide valuable information about the nature and the ...
Blends of thermoplastic starch and some thermoplastic polymers
(Serbian Chemical Society, Belgrade, 1998)
Thermoplastic starch (TPS) was blended in a twin screw mixer with 5 and 10 mass % of poly(ethylene-co-acrylic acid) (EAA), poly(ethylene-co-vinyl acetate) (EVA) or cellulose acetate (CA) in order to improve the TPS properties. ...