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Now showing items 71-80 of 1604
An enlarged approach to yarn self: Abrasion testing / Prošireni pristup ispitivanju samoabrazije pređe
(Union of Textile Engineers and Technicians of Serbia, Belgrade, 2002)
An attempt has been made to use the Staff - tester, an instrument for checking the surface condition of yarns by their self abrasion in the loop with new types of yarn contacts. The basic metrological indicator of this ...
Preliminary studies on controlled release of acetylsalycilic acid from membrane module
(Association of Chemical Engineers of Serbia, 2004)
Supercritical carbon dioxide extraction of sesquiterpenes from valerian root
(Elsevier Science Bv, Amsterdam, 2007)
Supercritical carbon dioxide extraction of sesquiterpenes from valerian root was investigated. Extractions from cultivar Arterner zuctung and two wild grown valerian subspecies were performed. The influence of extraction ...
Antimicrobial activity of the essential oil and different fractions of Juniperus communis L. and a comparison with some commercial antibiotics / Antimikrobna aktivnost etarskog ulja i različitih frakcija Juniperus communis L. i poređenje sa nekim komercijalnim antibioticima
(Serbian Chemical Society, Belgrade, 2007)
The essential oil of common juniper (Juniperus communis L., from the southern part of Serbia) and its fractions of different composition, as well as commercial antibiotics were used for testing their antimicrobial activity ...
Methanolysis of sunflower oil using alumina/silica supported potassium oxide (K2O) as a heterogeneous catalyst / Metanoliza suncokretovog ulja katalizovana kalijum oksidom (K2O) na alumosilikatnom nosaču
(Univerzitet u Nišu - Tehnološki fakultet, Leskovac, 2009)
Biodiesel, the most promising alternative to diesel fuel, is renewable, biodegradable, environmentally friendly and can be used in existing engines. Certain disadvantages of conventional processes of biodiesel, i.e. fatty ...
Prediction for debonding damage process of glass beads-reinforced modified polyphenylene oxide under simple shear
(Elsevier Science Sa, Lausanne, 2005)
A three-dimensional finite element cell modeling technique has been applied to predict the particle-matrix debonding process of particulate polymer composite (PPC) subject to simple shear loading. The particle-matrix ...
Prevention and control of dimethylamine vapors emission: Herbicide production plant
(Association of the Chemical Engineers of Serbia, 2008)
The widely used herbicide, dimethylamine salt of 2,4-dichlorophenoxy acetic acid (2,4-D-DMA), is usually prepared by mixing a dimethylamine (DMA) aqueous solution with a solid 2,4-dichlorophenoxy acetic acid (2,4-D). The ...
Vinča landfill leachate characteristics prediction by the leaching method / Ispitivanje karakteristika procednih voda deponije 'Vinča' metodom izluživanja
(Association of Chemical Engineers of Serbia, 2006)
Under the newly implemented waste management policy in European Union countries, sanitary landfilling constitutes the fourth and the least preferred of the alternative management options for the disposal of solid urban ...
Electrophoretic deposition of boehmite coatings on titanium from aqueous sols
(Trans Tech Publications Ltd, Durnten-Zurich, 2004)
The electrophoretic deposition from sots and colloidal suspensions of ceramic powders has many advantages over conventional ceramic powder processing methods. In this way it is possible to control the thickness and ...
Substituent and solvent effects on the UV/Vis absorption spectra of 5-(4-substituted arylazo)-6-hydroxy-4-methyl-3-cyano-2-pyridones
(Elsevier, Amsterdam, 2004)
Absorption spectra of ten 5-(4-substituted arylazo)-6-hydroxy-4-methyl-3-cyano-2-pyridones have been recorded in fifteen solvents in the range 200-600 nm. The substituents at the phenyl nucleus are as follows: OH, OCH3, ...