Претраживање
Приказ резултата 31-40 од 53
NMR Characterization and Rietveld Refinement of the Structure of Rehydrated AlPO4-34
(American Chemical Society, 2000)
The triclinic form of AlPO4-34, a microporous aluminophosphate with the chabazite (CHA) topology, adopts a rhombohedral symmetry upon calcination. The framework structure of this phase remains intact under ambient conditions, ...
Gas chromatographic retention indices for the N-methyl-N-substituted benzamides on capillary columns
(Natl Inst Science Communication, New Delhi, 2000)
Gas chromatographic retention indices (1) for series of 20 synthesized N-methyl-N-substituted benzamides on DB-I, DB-5 and DB-WAX capillary columns isothermal at 170, 190 and 210 degreesC, and using temperature programmed ...
The influence of the aging time of RuO2 and TiO2 sols on the electrochemical properties and behavior for the chlorine evolution reaction of activated titanium anodes obtained by the sol-gel procedure
(Elsevier, 2000)
The influence of the aging time of RuO2 and TiO2 sols used for the preparation of (40% RuO2+60% TiO2)/Ti anodes by the sol-gel procedure on the electrochemical properties and behavior for the chlorine evolution reaction ...
Proučavanje mogućnosti dobijanja polimetakrilatnih vlakana specijalnih svojstava II: Utvrđivanje optimalnih parametara procesa formiranja vlakana / Study of possibility the polymethylmethacrylate special properties fibers obtaining II: Determination of the optimal parameters of fibers spinning process
(Loznica : Viskoza, 2000)
U ovom radu su, na bazi rezultata istraživanja termijskih, termomehaničkih i strukturnih karakteristika polimetilmetakrilata (PMMA), određeni parametri procesa formiranja polimetilmetakrilatnih vlakana specijalnih svojstava. ...
Enumeration of labelled quasi-initially connected digraphs
(Elsevier, 2000)
A new class of connected digraphs is introduced - the class of quasi-initially connected digraphs. They are enumerated in the labelled case. Using the apparatus developed for labelled quasi-initially connected digraphs ...
Kinetic analysis of hydrogen evolution at Ni-Mo alloy electrodes
(Elsevier Science Ltd, 2000)
The hydrogen evolution reaction (HER) on Ni, Mo and MoNi intermetallic compound was investigated with ac impedance and dc polarization measurements in 1.0 mol dm-3 NaOH solution at 25 °C. The rate constants of the forward ...
Alginatna vlakna programirane biološke aktivnosti / Alginate fibers with programmed biologically activity
(Loznica : Viskoza, 2000)
Alginatna vlakna poseduju niz veoma jedinstvenih svojstava i sa aspekta razvijene površine, hidrofilnosti, biokompatibilnosti i netoksičnosti prevazilaze većinu danas poznatih polimera. U ovom radu, alginatna vlakna su ...
Synthesis and FT-IR Study of Some N-Monosubstituted 2,2-Dimethylpropanamides / Sinteza i FT-IR studija nekih N-mono supstituisanih 2,2-dimetilpropanamida
(Banja Luka : Društvo hemičara i tehnologa Republike SrpskeBanja Luka : Tehnološki fakultet, 2000)
In our study of behaviour of the amide bond we investigated the conformations of some N-monasubstituted 2,2-dimethy|propanamides of the general formula CH3C(CH3)2CONHR, wherein R ranges from n-alkyl (C1-C7), iso-alkyil ...
Analysis of in vivo substitution of bone tissue by HAp/PLLA composite biomaterial with PLLA of different molecular weights using FTIR spectroscopy
(Uetikon-Zuerich : Trans Tech Publ, 2000)
Hydroxyapatite/poly-L-lactide (HAp/PLLA) composite biomaterial with PLLA of 50,000 and 430,000 g/mole molecular weight was studied in vivo. The biocomposite with PLLA of both molecular weights was implanted into mice and ...
Contribution to study of processes on the steel cast-sand mould contact surface during casting
(Elsevier Science B.V., 2000)
The testings involved in this paper were part of a comprehensive research project conducted to find out what complex processes were taking place at metal-mould contact surface. These investigations are of particular ...