Претраживање
Приказ резултата 41-50 од 78
Influence of natural zeolite addition on potassium retention from different types of soils / Uticaj prirodnog zeolita kao suplementa na zadržavanje kalijuma urazličitim vrstama zemljišta
(Institut PKB Agroekonomik, Padinska skela, 2015)
This study presents the impact of addition of natural zeolite - clinoptilolite on potassium retention in the soil. Three different types of soil (from three different locations): Norway, Serbia and Bosnia and Herzegovina ...
Synthesis and characterization of the surface modified titanium dioxide/epoxy nanocomposites / Sinteza i karakterizacija nanokompozita na bazi površinski modifikovanih nanočestica titan-dioksida i epoksidne smole
(Univerzitet u Nišu - Tehnološki fakultet, Leskovac, 2015)
TiO2 nanoparticles, obtained by acid catalyzed hydrolysis of titanium isopropoxide, were surface modified by three gallic acid esters with different hydrophobic part length: octyl, decyl and lauryl gallate, and then used ...
The application of natural zeolites in agriculture / Upotreba iznačaj prirodnog zeolita u poljoprivredi
(Institut PKB Agroekonomik, Padinska skela, 2015)
Zeolites are natural microporous crystals that are formed by the elements from the earth’s core: silicon, aluminium and oxygen, Natural zeolite deposits were formed millions of years ago from volcanic ash, There are about ...
Kompresija odevnih tkanina pre i posle termičkog fiksiranja međupostave / Compression of clothing woven fabrics before and after thermal fixation of the interlining
(Savez inženjera i tehničara tekstilaca Srbije, 2017)
U radu su ispitivana kompresiona svojstva odevnih tkanina pre i posle termičkog fiksiranja tkane međupostave. Kao eksperimentalni materijal korišćene su tkanine sirovinskog sastava pamuk/poliestar izrađene u keper 3/1S ...
Automatic feeder for domestic and wild animals on pastures / Automatski uređaj za prihranu domaćih i divljih životinja na pašnjacima
(Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd, 2020)
This paper presents a prototype of an automatic feeder for domestic and wild animals in organic farming. A simple, self-contained domestic and wild animal feeder was presented that has fully autonomous operation for up to ...
Influence of maize hybrid on bioethanol yield and quality of dried distillers' grains / Uticaj hibrida kukuruza na prinos bioetanola i kvalitet suve kukuruzne džibre
(Serbian Association of Plant Breedings and Seed Producers, 2015)
Maize (Zea mays L.) is one of the most important cereal crops. and one of the most significant renewable raw materials for the production of energy and many different products. Bioethanol is a biofuel that is mostly used ...
The effect of bacterial isolates from rhizosphere soils on wheat and barley seed germination / Uticaj bakterijskih izolata iz zemljišta rizosfere na indukciju klijavosti semena pšenice i ječma
(Serbian Soil Science Society, Belgrade, 2019)
Soil microorganisms, which are usually found in plant rhizosphere, have a wide spectrum of beneficial effects on the promotion of plant growth. The most comprehensively studied bacteria with these effects belong to the ...
Ecological modification of polyester surface properties using plasma treatment / Ekološko modifikovanje površinskih svojstava poliestra upotrebom plazme
(Union of Textile Engineers and Technicians of Serbia, Belgrade, 2017)
During plasma treatment of polyester, the morphological structure and chemical composition of the fiber is being modified. Thereby, the surface roughening and formation of new functional groups occur. Then, the surface ...
Antioxidant activity in different morphological fractions of some cereal grains / Antioksidativna aktivnost različitih morfoloških frakcija zrna nekih cerealija
(Društvo za ishranu Srbije, Beograd, 2017)
The purpose of this study was to examine the antioxidant properties of 70% ethanolic extracts of cereal grains and their different morphological fractions. Wheat (Triticum durum L.), barley (Hordeum vulgare L.), rye (Secale ...
Risk maps for industrial occupational health and safety / Mape rizika za zdravlje i bezbednost na radu u industriji
(Univerzitet u Nišu, Niš, 2016)
Risk assessment is a complex process, of which the outputs are often to be used by decision makers for policy development and risk management. Risk communication in Environmental sciences is often made simpler using risk ...