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Приказ резултата 31-40 од 61
The retention behaviour of some cholic acid derivatives on different adsorbents
(Research Inst Medicinal Plants, Budakalasz, 2002)
The thin-layer chromatographic behavior of cholic acid and fourteen of its synthetic derivatives has been studied in six reversed-phase and three normal-phase systems. Four significantly different adsorbents were used - ...
Parameters optimization of acid activated bentonite clay from the coal mine 'Bogovina' / Optimizacija parametara kiselinske aktivacije bentonitnih glina iz RMU Bogovina
(Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije, Beograd, 2002)
The bentonite clays, depending on the type of activation, are used as an adsorption media, as the starting material for the catalyst's supports, in the water purification processing plants, in the storage processing of ...
Mass transfer in vertical two-phase flow of liquid coarse particles / Prenos materije u vertikalnom dvofaznom toku tečnost-krupne čestice
(Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije, Beograd, 2002)
Wall-to bed mass transfer in single-phase and vertical two phase flow of inert spherical particles 1.20, 1.94 and 2.98mm in diameter in a 25.4mm I.D. tube was studied. Mass transfer coefficients were determined by following ...
Reflection and structural characteristics of semi-bright and mirror bright nickel coatings / Refleksione i strukturne karakteristike polusjajnih i ogledalski sjajnih prevlaka nikla
(Serbian Chemical Society, 2002)
The reflection and structural characteristics of the nickel coatings obtained in the presence of a basic brightening addition agent only, and of both a basic and top brightening addition agent are examined. It is shown ...
Interaction of different third intracellular loop fragments of human dopamine d2l receptor with a-subunit of gi1 protein - prospective therapeutic application / Interakcija različitih fragmenata treće citoplazmatične petlje dopaminskog d2l receptora čoveka sa a-podjedinicom gi1 proteina - moguća terapeutska primena
(Jugoslovenska medicinska biohemija, 2002)
In order to find the essential structural motif of the D2L dopamine receptor necessary for the interaction with a-subunit of Gi1 protein, four fragments of the third cytoplasmic loop (CPL3) of this receptor were cloned, ...
A consideration of fabrication-induced imperfections in photonic crystals for optical frequencies
(IEEE Computer Society, 2002)
We analyze fabrication-induced imperfections and disorder in our photonic crystals (PC) fabricated by microsystem technologies. Based on a correspondence between holograms and photonic crystals, we introduce technological ...
Influence of adsorption-desorption process on resonant frequency and noise of micro-and nanocantilevers
(IEEE Computer Society, 2002)
Scientists in the field of NEMS today are focused on the problem of achieving the lowest detectable mass of the atomic force microscope and molecular microscope probes. This paper deals with this problem starting from the ...
Partial hydrogenation of edible oils: Synthesis and verification of the nickel catalyst / Parcijalno hidrogenovanje jestivih ulja - sinteza i verifikacija katalizatora na bazi nikla
(Association of Chemical Engineers of Serbia, 2002)
Developed in the late 1800s as a butter substitute, margarine is made with vegetable oils. Margarine was created by a scientist from Provence (France) Hippolyte Mege-Mouries, in response to an offer by the Emperor Louis ...
Optical fibers with composite magnetic coating
(Elsevier, 2002)
The goal of these investigations was to define the process parameters that enable the formation of a composite coating with the most uniform thickness on an optical fiber. The composite coating was obtained by drawing the ...
Titanium tetrachloride promoted reaction of silyl ketene acetals with epoxides: a new method for the synthesis of gamma-butanolides
(Oxford : Pergamon-Elsevier Science Ltd, 2002)
A new method for the synthesis of gamma-butanolides is described. The titanium tetrachloride promoted reaction of silyl ketene acetals with epoxides, followed by acidic work-up, affords the corresponding butyrolactones in ...