Претраживање
Приказ резултата 31-40 од 164
Solid State Synthesis of Extra Phase-Pure Li4Ti5O12 Spinel
(Međunarodni Institut za nauku o sinterovanju, Beograd, 2011)
Extra phase-pure Li4Ti5O12 spinel with particle sizes less than 500 nm was synthesized by solid state reaction of mechanochemicaly activated mixture of nano anatase and Li2CO3 for a very short annealing time, 4 h at 800 ...
Population viability analysis and potential of its application to Danube sturgeons
(Srpsko biološko društvo, Beograd, i dr., 2009)
Sturgeon species in the Danube River basin have experienced severe decline. Besides overexploitation, habitat loss, and pollution, they are further endangered by lack of efficient policy and management, as well as by serious ...
The effect of pH on the activity of soluble peroxidase in needles of Serbian spruce (Picea omorika (Panc.) Purkinye): application of a mathematical model
(General Physiol And Biophysics, Bratislava, 2010)
We studied the dependence of peroxidase (POD) activity on pH in crude extract of Picea omorika (Pane.) Purkinye needles and in its acidic and basic fractions, obtained by ion exchange chromatography. Nonlinear regression ...
The anthropogenic impact on water quality of the river danube in Serbia: microbiological analysis and genotoxicity monitoring
(Srpsko biološko društvo, Beograd, i dr., 2011)
The aim of this work was to examine the impact of urban wastewaters on the water quality of the Danube River in Serbia. Samples of water and sediments for microbiological analysis and genotoxicity monitoring were collected ...
SiC Synthesis Using Natural Mg-Silicates
(Međunarodni Institut za nauku o sinterovanju, Beograd, 2012)
The silicon carbide powders are prepared by carbothermal reduction of domestic mineral resources (white and brown sepiolite), at relatively low temperatures (1200 - 1600 degrees C). Carbothermal reduction process is greatly ...
Lipase production by Yarrowia lipolytica using olive oil processing wastes as substrates
(Srpsko hemijsko društvo, Beograd, 2013)
In this study, the solid and liquid wastes from the olive oil processing industry were evaluated as substrates for Yarrowia lipolytica growth with the aim of lipase production. Olive mill wastewater and olive oil cake ...
Spectrofluorimetric and HPLC Determination of Morin in Human Serum
(Slovenian Chemical Society, 2009)
Morin is a flavonol antioxidant. In ethanol-water mixtures (70 wt% of ethanol) it reacts with Al3+ to give Al(Morin)(2) in the pH range 3-6. The conditional stability constant of this complex at 298 K was found to be log ...
Effect of Binder Molecular Weight on Morphology of TiO2 Films Prepared by Tape Casting and Their Photovoltaic Performance
(Međunarodni Institut za nauku o sinterovanju, Beograd, 2012)
Titanium(IV) oxide in the form of anatase has proven to be the best choice for photoanodic material in dye-sensitized solar cells (DSCs). The aim of the work was to study the influence of binder molecular weight on the ...
Freshwater jellyfish craspedacusta sowerbyi lankester, 1880 (hydrozoa, olindiidae)-50 years' observations in Serbia
(Srpsko biološko društvo, Beograd, i dr., 2010)
Detailed and relevant limnological investigations of Serbian waters were initiated in 1958 and have continued to the present. During the period 1971-2008 we monitored biological elements as a part of working studies/projects, ...
The potential of different lime tree (tilia spp) genotypes for phytoextraction of heavy metals
(Društvo genetičara Srbije, Beograd, 2012)
The research of heavy metals contents (Pb, Mn, Zn, Ni, Fe) in soil in the area of the National Park, Fruska gora", along the highway M21 shows lower values for manganese, zinc and iron than the maximum allowed quantity ...