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Приказ резултата 21-30 од 69
Investigation of pretertiary and tertiary surface sediments from Serbia: Organic geochemical interpretation / Ispitivanje pretercijarnih i tercijarnih površinskih sedimenata Srbije - organsko-geohemijska interpretacija
(Association of Chemical Engineers of Serbia, 2002)
Samples of surface sediments originating from different localities in Serbia which contained more than 0.5 % organic matter were investigated in this paper. According to age, these samples were classified into two groups ...
Antimalarial peroxides: The first intramolecular 1,2,4,5-tetraoxane / Antimalarijski peroksidi - prvi intramolekulski 1,2,4,5-tetraoksan
(Serbian Chemical Society, 2002)
An intramolecular steroidal 1,2,4,5-tetraoxane has been synthesised in six steps starting from methyl3-oxo-7α,12α-diacetoxy-5β-cholan-24-oate. The synthesised 1,2,4,5-tetraoxane has moderate in vitro antimalarial activity ...
The estimation of solid copper surface tension in copper sulfate solutions / Procena vrednost i površinskog napona čvrstog bakra u rastvorima bakar-sulfata
(Serbian Chemical Society, 2002)
In metal electrodeposition in the limiting diffusion current density range the deposition current density remains constant regardless of the deposition overpotential used. At the same time, the larger the deposition ...
The representative particle of copper powder and branch of copper dendrites / Reprezentativna čestica bakarnog praha i grananje dendrita bakra
(Serbian Chemical Society, 2002)
Electrochemically deposited copper powders, which are formed of particles of different size and morphology, are characterized by some properties like specific surface and apparent density. Aprocedure of the determination ...
Photo-pyro-piezo-electric elastic bending method: Investigation of metalsemiconductor structure
(IEEE Computer Society, 2002)
The metal-semiconductor (MS) junction is investigated by new method based on two techniques: the acphotovoltage and pyro-piezo-electric technique. The sample with metal-semiconductor-metal configuration was attached to the ...
Silicon resonant cavity enhanced UV flame detector
(IEEE Computer Society, 2002)
The need for selectively sensitive UV photodetectors poses a requirement both for novel detector structures and for new materials and technologies to produce them. In this paper we consider, for the first time, a possibility ...
A novel analytical model of a SiC MOSFET
(IEEE Computer Society, 2002)
This paper presents a novel analytical model for simulation of characteristics of a n-channel MOSFET based on silicon-carbide (SiC). Using known experimental results, a semiempirical relation for carrier mobility (/spl ...
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 ...
A novel lectin from the sponge Haliclona cratera: isolation, characterization and biological activity
(Elsevier Science Inc, New York, 2002)
A lectin from the Adriatic sponge Haliclona cratera was purified by ion-exchange and gel chromatography The molecular mass of the lectin is approximately 29 kDa. Purified lectin is rich in hydrophobic and basic amino acids ...
Investigation of surface energy states on Si by photoacoustic spectroscopy
(IEEE Computer Society, 2002)
The spectral and dynamic characteristics of surface energy states on Si wafer are investigated by photoacoustic (PA) spectroscopy. The PA spectra were measured as a function of the wavelength and modulation frequency of ...