Претраживање
Приказ резултата 31-40 од 50
Nanofabrication of planar split ring resonators for negative refractive index metamaterials in the infrared range / Nanofabrikacija planarnih split ring rezonatora za metamaterijale sa negativnim indeksom prelamanja u infracrvenom opsegu
(Serbian Chemical Society, 2006)
Experimental nanofabrication of planar structures for one-dimensional metamaterials designed to achieve a negative effective refractive index in the mid-infrared range (5-10 micrometers) was performed. Double split ring ...
The formation of natural gas prices charged to very large industrial users in Serbia according to standards of the European union / Formiranje cena prirodnog gasa za velike industrijske potrošače u Srbiji prema standardima evropske unije
(Institut za istraživanja i projektovanja u privredi, Beograd, 2006)
Natural gas is a primary energy resource with the indicated highest annual growth of global demand and consumption in all recent forecasts. The chemical industry is a leading non-seasonal consumer of natural gas, mainly ...
The effect of rifamycin and chloramphenicol on antibiotic and protease production by Streptomyces hygroscopicus CH-7 / Dejstvo rifamicina i hloramfenikola na produkciju antibiotika i proteaza soja Streptomyces hygroscopicus CH-7
(Acta biologica iugoslavica - serija B: Mikrobiologija, 2006)
Streptomycetes are common soil bacteria that grow in a filamentous form and produced spores. Secondary metabolites, particularly antibiotics, as well as extracellular enzymes produced by them have very significant role in ...
Elektrohemijska oksidacija metanola i mravlje kiseline na model i realnim katalizatorima / Electrochemical oxidation of methanol and formic acid on model and real catalysts
(Универзитет у Београду, Технолошко-металуршки факултет, 2006)
Prema svim dosadašnjim saznanjima o okisdaciji metanola za odigravanje ove reakcije neophodo je prisustvo OH čestica na površini elektrode. One su neophodne i za oksidaciju mravlje kiseline po jednom od dva paralelna ...
Phytochemical investigation of Anthemis cotula / Фитохемијско испитивање биљне врсте Anthemis cotula
(Serbian Chemical Society, 2006)
The investigation of roots of Anthemis cotula (Asteraceae) from east Serbia revealed, in addition to polyacetylenes previously isolated from the same species, three prenylated 4-hydroxyacetophenones, detected for the first ...
Physical modeling of representative particles of electrodeposited copper powders / Fizičko modelovanje reprezentativnih čestica elektrohemijski istaloženog bakarnog praha
(Serbian Chemical Society, 2006)
A method for the estimation of the size of the representative particle of a copper powder is given. Cross sections of representative particles of flowing and non-flowing powders estimated by this procedure are also presented.
Reactions of α-4(20)-epoxy-5-O-mesyltriacetyltaxicine I induced by Bf3·Et2O/Bu4NBr / Reakcije α-4(20)-epoksi-5-O-meziltriacetiltaksicina I sa tetrabutilamonijum-bromidom u prisustvu bortrifluorid-eterata
(Serbian Chemical Society, 2006)
The reaction of α-4(20)-epoxy-5-O-mesyltriacetyltaxicine I (2) with BF3·Et2O/Bu4NBr can give rise to 4 different products. Each of these products can be obtained selectively, under the appropriate reaction conditions.
The cellular fatty acid composition of Bradyrhizobum japonicum and Sinorhizobium meliloti strains / Ćelijske masne kiseline sojeva Bradyrhizobum japonicum i Sinorhizobium meliloti
(Acta biologica iugoslavica - serija B: Mikrobiologija, 2006)
Microbial fatty acid analysis represents a simple and rapid method for identification of strains mainly for taxonomic purpose. Fatty acid composition in the whole cells and lipopolysaccharides in Rhizobiaceae were studied ...
Further guaianolides from Amphoricarpos neumayeri ssp murbeckii from Montenegro
(Verlag Z Naturforsch, Tubingen, 2006)
The aerial parts of Amphoricarpos neumayeri ssp. murbeckii afforded eleven guaianolides with the same relative (1 alpha H,4 beta H,5 alpha H, 7 alpha H) configuration of the basic skeleton. All of them contained a CH2OX ...
The morphology of copper powder obtained by different regimes of electrolysis / Morfologija bakarnog praha dobijenog različitim režimima elektrolize
(Belgrade, Serbia : Engineering Society for Corrosion, 2006)
The effect different deposition regimes (constant and reversing currents), on the powdered copper electrodeposits morphology were investigated. The morphology of electrodeposited copper powder were investigated using a ...