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Now showing items 81-90 of 104
Hydrogeochemical investigation of ground and surface water in the Neogene - Quaternary sediments / Hidrogeohemijska ispitivanja kvaliteta podzemnih i površinskih voda u neogenim - kvartarnim sedimentima
(Institut za rudarstvo i metalurgiju Bor, 2015)
Geochemical investigations in order to identify the mineral deposits, as well as the sources of water supply of rural settlements included in the area of Bela Crkva, between the Nera and the Karaš rivers, draining the ...
Properties of cotton yarns after oxidation of potassium permanganate in an acidic environment / Svojstva pamučne pređe posle oksidacije kalijum-permanganatom u kiseloj sredini
(Belgrade, Serbia : Engineering Society for Corrosion, 2017)
The impact of nonselective cellulose oxidation (cotton fibre) by potassium permanganate in acidic environment, with or without additional treatment by sodium metabisulfite, on change of sorption (silver ions sorption), and ...
Comparison of extraction agents for metal determination in sediments from artificial lakes and rivers in Serbia
(Acta Periodica Technologica, 2019)
The purpose of this paper was to investigate the effectiveness of three different extraction agents for the extraction of 25 elements from sediment samples collected from 4 artificial lakes and 12 rivers in Serbia (33 ...
Cyanobacteria and algae from biofilm at the entrance zone of Petnica Cave / Цијанобактерије и алге из биофилма са улазне зоне Петничке пећине
(Matica srpska, 2021)
The importance of biofilms in caves, the diversity of microorganisms
in them, their mutual relationship and relationship with the substratum are among the advancing research topics in microbial biospeleology. This research ...
Environmental and economic effects of investments in sustainable land management in the basin of Sutilovac stream / Еколошки и економски ефекти улагања у одрживо управљање земљишним ресурсима на подручју слива Шутиловачког потока
(Belgrade : University of Belgrade - Faculty of Forestry, 2019)
This paper presents the results of an erosion processes research on the territory of the morphological unit of Sutilovacki stream, the prevention measures of same processes, as well as the justification of socio-economic ...
Microwawe-assisted extraction of antioxidant compounds from Vaccinium Myrtillus leaves
(Institute for Medicinal Plant Research "Dr. Josif Pančić", 2023)
Vaccinium myrtillus L. (bilberry, Ericaceae), a perennial, wild, and small deciduous shrub that grows in the mountains and forests of Europe. The leaf extracts are widely used in traditional medicine due to their astringent, ...
Synthesis, characterization, and evaluation of antioxidant and antimicrobial activity of three novel n-heteroaromatic hydrazonyl-thiazoles / Sinteza, karakterizacija i procena antioksidativne i antimikrobne aktivnosti tri nova n-heteroaromatična hidrazonil-tiazola
(Centre for Evaluation in Education and Science (CEON/CEES), 2021)
(Thiazolyl-2-yl)hydrazones (THs) are a group of organic compounds containing both hydrazone and 1,3-thiazole pharmacophores present in many approved drugs. They have been investigated greatly in recent years due to potent ...
Corrodive cracks from flux residuals after brazing of thin leaves at an artistic desk lamp / Korozione pukotine od zaostalog topitelja posle lemljenja tankih listova na jednoj umetničkoj stonoj lampi
(Engineering Society for Corrosion, 2018)
Making of an artistic piece usually includes a number of different technologies. It implies that for understanding of eventually present irregularities one should knows a lot of technical details. Brazing technology is one ...
The model for improving the manufacturing process in Serbian small-scale production enterprises / Model za unapređenje procesa proizvodnje u srpskim preduzećima sa maloserijskim tipom proizvodnje
(Economics institute, Belgrade, 2017)
The paper presents a theoretic model for improving the manufacturing process that was developed and tested in small-scale production enterprises. The model also represents a new organizational model which enables a complete ...
Electrodeposition of Nb and Al from chloroaluminate melt on vitreous carbon
(Association of Metallurgical Engineers of Serbia AMES, 2016)
Niobium and aluminium were electrodeposited at 200 °C under argon
atmosphere onto vitreous carbon from inorganic chloroaluminate melts (AlCl3+NaCl)
with added niobium. Niobium was introduced into the electrolyte by anodic ...