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Приказ резултата 11-20 од 84
The influence of some factors on the electrical conductivity and particle size of core/shell polystyrene/polyaniline composites / Утицај неких фактора на електричну проводљивост и величину честица композита са језгром од полистирена и омотачем од полианилина
(Serbian Chemical Society, 2005)
The electrically conductive, micron-sized, core/shell polystyrene (PS)/polyaniline (PANI) composite particles were synthesized by chemical oxidative polymerization of aniline in the presence of micron-sized PS particles ...
Open-framework aluminophosphates: Synthesis, characterization and transition metal modifications / Porozni alumofosfati - sinteza, karakterizacija i modifikovanje jonima prelaznih metala
(Serbian Chemical Society, Belgrade, 2005)
This review is a brief summary of open-framework aluminophosphates and their transition metal-substituted modifications. The materials exhibit structural and compositional diversity, as well as a wide range of pore openings, ...
(C4H12N2)[Zn-2(PO4)(HPO4)(H2PO4)], a layered zinc phosphate with intercalated N-methylpropane-1,3-diaminium cations
(Int Union Crystallography, Chester, 2005)
The title compound, catena-poly[[N-methylpropane-1,3diaminium [mu-phosphato-(mu-hydrogen phosphato)(mu-dihydrogen phosphato) dizincate(II)]], {(C4H14N2)[Zn-2(PO4)(HPO4)(H2PO4)]}(n), consists of macroanionic [Zn-2(PO4)(HP ...
Dynamic recrystallization in M2 tool steel during friction welding
(Savez inženjera metalurgije Srbije, Beograd, 2005)
Friction welding of M2 tool steel and 1730 quenched and tempered steel was performed with the aim to reveal the origin of extremely fine martensitic grain in M2 steel after welding. Taking into account thermomechanical ...
The growth of ruby single crystals / Раст монокристала рубина
(Serbian Chemical Society, 2005)
Ruby (Cr:Al2O3) single crystals were grown by the Czochralski technique in an argon atmosphere. The critical crystal diameter dc = 1.0 cm and the critical rate of rotation ωc = 20 rpm were calculated by equations of the ...
The gas holdup in a multiphase reciprocating plate column filled with carboxymethylcellulose solutions / Утицај концентрације раствора и степена полимеризације карбоксиметилцелулозе на садржај гаса у реактору са вибрационом мешалицом
(Serbian Chemical Society, 2005)
Gas holdup was investigated in a gas-liquid and gas-liquid-solid reciprocating plate column (RPC) under various operation conditions. Aqueous carboxymethylcellulose (sodium salt, CMC) solutions were used as the liquid ...
1,3-Propanediammonium [μ4-1,2,4,5-benzenetetracarboxylato(4-) ]copper(II) dihydrate with a microporous structure
(Serbian Chemical Society, 2005)
Crystal structure analysis of the title complex, (H3NC 3H6NH3)[Cu{C6H2(COO) 4}] ·2H2O, showed that the structure is built up from Cu(II) and tetradentate 1,2,4,5-benzenetetracarboxylate(4-) (btc) ions forming a 3D ...
A pseudo-fluid representation of vertical liquid-coarse solids flow / Vertikalno kretanje tečnosti i čvrstih čestica tretirano kao pseudo-fluid
(Serbian Chemical Society, 2005)
The pseudo–fluid concept has been applied for the prediction of the pressure gradient and voidage in vertical liquid-coarse solids flow. Treating the flowing mixture as a single homogenous fluid, the correlation for the ...
Bioethanol from corn meal hydrolyzates / Proizvodnja bioetanola na hidrolizovanom kukuruznom brašnu
(Association of the Chemical Engineers of Serbia, 2005)
The two-step enzymatic hydrolysis of corn meal by commercially available α-amylase and amyloglycosidase and the subsequent or simultaneous ethanol fermentation of the hydrolyzates by Saccharomyces cerevisiae yeast were ...
An algorithm for LC1 optimization
(Faculty of Organizational Sciences, Belgrade, 2005)
In this paper an algorithm for LC1 unconstrained optimization problems, which uses the second order Dini upper directional derivative is considered. The purpose of the paper is to establish general algorithm hypotheses ...