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Приказ резултата 11-20 од 68
Investigation of the reactivity of 4-pyrimidinecarboxylic, 6-hydroxy-4-pyrimidinecarboxylic and 5-hydroxyorotic acids with diazodiphenylmethane in various alcohols: Part III / Ispitivanje reaktivnosti 4-pirimidinkarboksilne, 6-hidroksi-4-pirimidinkarboksilne i 5-hidroksiorotinske kiseline sa diazodifenilmetanom u različitim alkoholima
(Serbian Chemical Society, Belgrade, 2007)
Rate constants for the reaction of diazodiphenylmethane (DDM) with 4-pyrimidinecarboxylic, 6-hydroxy-4-pyrimidinecarboxylic and 5-hydroxyorotic acids were determined in twelve protic solvents at 30 °C using the well known ...
Crystal structure of potassium lead bismuth oxide hydrate, K-1.09(Bi0.93Pb0.07)O-3 center dot 1/6H(2)O
(Oldenbourg Verlag, Munich, 2007)
Bi0.93H0.33K1.09O3.Pb-17(0.07), cubic, Im (3) over bar (no. 213), a = 10.013(l) angstrom, V = 1003.9 angstrom(3), Z = 12, R-gt(F) = 0.010, wR(ref)(F-2) = 0.023, T = 295 K.
Crystallization shelves for laboratory furnaces
(Wiley-VCH Verlag Gmbh, Weinheim, 2007)
Several designs of air coolers (modular bilateral "crystallization shelves"), installed in laboratory furnaces are presented. The setup allows easy regulation and simultaneous crystallization of several substances at ...
Wall-to-liquid mass transfer in fluidized beds and vertical transport of inert particles / Prenos mase zid-fluid u fluidizovanim slojevima i pri vertikalnom transportu inertnih čestica
(Serbian Chemical Society, Belgrade, 2007)
Mass transfer coefficients in single phase flow, liquid fluidized beds and vertical hydraulic transport of spherical inert particles were studied experimentally using 40 mm and 25.4 mm diameter columns. The mass transfer ...
A kinetic study of the thermal degradation of cetyltrimethylammonium bromide inside the mesoporous SBA-3 molecular sieve / Kinetičko izučavanje termičkog razlaganja cetiltrimetilamonijum−bromida unutar mezoporoznog molekulskog sita SBA-3
(Serbian Chemical Society, Belgrade, 2007)
The thermal degradation of cetyltrimethylammonium bromide (CTMAB) inside the mesoporous SBA-3 was studied under non-isothermal conditions. There are two distinct and complex kinetic processes which partly overlap, each ...
Alginate microbeads as a cell support for cartilage tissue engineering: Bioreactor studies
(8th Conference of the Yugoslav Materials Research Society, 2007)
Alginate was shown to be a suitable support for entrapment and cultivation of chondrocytes and bone marrow stromal cells, which under appropriate in vitro conditions synthesized cartilaginous components. The main limitation ...
An experimental study of the partial oxidation of ethane to ethylene in a shallow fluidized bed reactor / Eksperimentalno ispitivanje parcijalne oksidacije etana do etilena u reaktoru sa plitkim fludizovanim slojem
(Serbian Chemical Society, Belgrade, 2007)
The partial catalytic oxidation of ethane to ethylene was investigated experimentally in a shallow fluidized bed. The performances of two catalyst types, pure γ-Al2O3 and V2O5/γ-Al2O3 particles 1.8 mm in diameter, were ...
Modeling and investigation of SiGe based MOSFET structure transport characteristics
(8th Conference of the Yugoslav Materials Research Society, 2007)
The focus of this paper was the investigation and modeling of transport characteristics in a strained SiGe based MOSFET structure, which might be of fundamental importance for the understanding of its operating characteristics. ...
Osmotic and activity coefficients of {yKCl+(1-y)MgCl2}(aq) at T=298.15 k
(Springer/Plenum Publishers, New York, 2007)
Isopiestic vapor-pressure measurements were made at the temperature 298.15 K for aqueous KCl + MgCl2 solutions using KCl(aq) as the reference standard. The measurements for these ternary solutions were made at KCl ionic ...
Release and diffusion studies of hydrogels based on itaconic acid
(8th Conference of the Yugoslav Materials Research Society, 2007)
Controlled release studies of drugs (theophylline (TH), fenethylline hydrochloride (FE) and gentamicin sulphate (GS)) from pH sensitive poly(2-hydroxyethyl methacrylate/itaconic acid) (P(HEMA/IA)) hydrogels obtained by ...