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Приказ резултата 21-30 од 662
Characterisation of dispersive systems using a coherer
(Međunarodni Institut za nauku o sinterovanju, Beograd, 2002)
The possibility of characterization of aluminium powders using a horizontal coherer has been considered. Al powders of known dimension were treated with a high frequency electromagnetic field or with a DC electric field, ...
Oxygen reduction at platinum nanoparticles supported on carbon cryogel in alkaline solution
(Srpsko hemijsko društvo, Beograd, 2007)
The oxygen reduction reaction was investigated in 0.1 M NaOH solution, on a porous coated electrode formed of Pt particles supported on carbon cryogel. The Pt/C catalyst was characterized by the X-ray diffraction (XRD), ...
Antioxidant Properties of Phenolics in Castanea sativa Mill. Extracts
(University of Zagreb, 2009)
Using electron paramagnetic resonance (EPR) spectroscopy, antioxidant properties of chestnut extracts have been investigated as a source of phenolic compounds. In addition to their high antioxidant activities against ...
Seasonal variations of microbiological parameters of water quality of the Velika Morava river Serbia
(Srpsko biološko društvo, Beograd, i dr., 2012)
In this study, we investigated the level of sanitary pollution and organic contamination of the Velika Morava River, the largest river in central Serbia. Samples of water for microbiological analysis were collected at 5 ...
Phenolic Compounds and Peroxidases in Sunflower Near-Isogenic Lines After Downy Mildew Infection
(Institut za ratarstvo i povrtarstvo, Novi Sad, 2006)
Two near-isogenic lines of sunflower, resistant (+Pl6 gene) and susceptible (-P16 gene) to downy mildew were used in this paper. Secondary infection with a suspension of Plasmopara halstedii spores was done on the plants ...
Spectral sensitivity of the perch (Perca fluviatilis) from the danube
(Srpsko biološko društvo, Beograd, i dr., 2007)
In spectral sensitivity studies, electroretinograms (ERG) were recorded from the in situ eyecup of immobilized perch (Perca fluviatilis) electrofished in the floodplain zone of the Danube River. It is shown that the ERG ...
Contribution to studies on white-tailed eagle (Haliaeetus albicilla Linnaeus, 1758) in Western Serbia and the Republic of Srpska
(Srpsko biološko društvo, Beograd, i dr., 2007)
Determination of the sources of nitrate and the microbiological sources of pollution in the Sava River Basin
(Elsevier, Amsterdam, 2016)
Coupled measurements of nitrate (NO3-), nitrogen (N), and oxygen (O) isotopic composition (delta N-15(NO3) and delta O-18(NO3)) were used to investigate the sources and processes of N cycling, while the microbial source ...
Semiconductor Gas Sensors: Materials, Technology, Design, and Application
(MDPI, Basel, 2020)
This paper presents an overview of semiconductor materials used in gas sensors, their technology, design, and application. Semiconductor materials include metal oxides, conducting polymers, carbon nanotubes, and 2D materials. ...
Antimicrobial and Immunomodulating Activities of Two Endemic Nepeta Species and Their Major Iridoids Isolated from Natural Sources
(MDPI, Basel, 2021)
Two Balkan Peninsula endemics, Nepeta rtanjensis and N. argolica subsp. argolica, both characterized by specialized metabolite profiles predominated by iridoids and phenolics, are differentiated according to the stereochemistry ...