Претраживање
Приказ резултата 31-40 од 1604
Izrada termoplastičnih kompozitnih cevi metodom namotavanja. III. Proračun termičkih napona / Fabrication of thermoplastic composite pipes using tape winding process. III. Thermal Stresses Calculation
(Društvo inženjera plastičara i gumara, 2006)
Cilj rada je da se na osnovu matematičkog modela procesa namotavanja kompozitnih cevi izvrši numerička simulacija procesa, kako bi se sagledao uticaj procesnih parametara na zaostale napone u kompozitnoj cevi, odnosno na ...
Magnetic properties of ND Rich Melt-Spun ND-FE-B alloy
(International Institute for the Science of Sintering, Beograd, 2005)
As a part of these experimental investigations of melt-spun Nd-Fe-B alloy with Nd rich content in relation to Nd2Fe14B prepared by rapid quenching process for optimally selected cooling rate and heat treatment, the influence ...
Concentrations of Cu, Zn, Cd and Pb in urban soils in parks and green areas of Belgrade / Zagađenje metalima urbanog zemljišta u parkovima i zelenim površinama u Beogradu
(Association of the Chemical Engineers of Serbia, 2006)
Several metals in urban soils of Belgrade were extracted by two methods which respectively give estimates of the available and "quasi total" contents. Soil samples were collected from six parks and three green areas within ...
Experimental design approach regarding kinetics of high pressure leaching processes / Dizajniranje eksperimenata u pogledu na kinetiku luženja pri visokim pritiscima
(Savez inženjera metalurgije Srbije, Beograd, 2003)
Kinetics of high pressure leaching of nickel latente ore "Rudjinci", Serbia was studied in this work. The following parameters: temperature, acid to ore ratio, stirring speed, and time were optimized in order to obtain the ...
Alumina/silica supported K2CO3 as a catalyst for biodiesel synthesis from sunflower oil
(Elsevier Sci Ltd, Oxford, 2009)
The new type of catalyst for fatty acid methyl esters (FAME or biodiesel) synthesis with K2CO3 as active component on alumina/silica support was synthesized using sol-gel method. Corresponding catalyst (xerogel) was prepared ...
A study of the synergistic antilisterial effects of a sub-lethal dose of lactic acid and essential oils from Thymus vulgaris L., Rosmarinus officinalis L. and Origanum vulgare L.
(Elsevier Sci Ltd, Oxford, 2007)
Commercial essential oils of Thymus vulgaris L., Rosmarinus officinalis L. and Origanum vulgare L. were chemically characterized by GC, GC/MS analyses. The antilisterial activity of the oils, and the sub-lethal concentration ...
The significance and possibility of functional food production / Značaj i mogućnosti proizvodnje funkcionalne hrane
(Association of Chemical Engineers of Serbia, 2002)
Abundant knowledge of the significance of food quality for all human living functions as well as growing human population and the occurrence of world "hidden hunger", directed food producers toward new production processes ...
The properties of carbon-supported hydrous ruthenium oxide obtained from RuOxHy sol
(Pergamon-Elsevier Science Ltd, Oxford, 2003)
Preparation of RuOxHy/carbon black nanocomposite material was performed by the impregnation method starting from RuOxHy sol as a precursor. Black Pearls 2000(R) (BP) and Vulcan(R) XC-72 R (XC) were used as supporting ...
Osmotic coefficient of K2SO4(aq) in supersaturated solution at T=298.15 K
(Amer Chemical Soc, Washington, 2005)
The Zdanovskii rule, in simple and modified form, was used for the estimation of supersaturated K2SO4-(aq) osmotic coefficients at T = 298.15 K by treatment of the isopiestic data of the mixed electrolyte solutions. The ...
Flow-injection chemiluminescence determination of formaldehyde in water
(Elsevier Science Bv, Amsterdam, 2007)
A modification of the Trautz-Schorigin reaction into a flow-injection analysis configuration is described. Different approaches were used at the optimization of chemi luminescence determination of formaldehyde in water ...