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Thermo-mechanical properties of rigid polyurethane foams with cement addition
(Society of Chemists and Technologists of Macedonia, 2016)
The parameters of foam preparation, such as addition of fillers, have a significant effect on the properties of polyurethane foams. The goal of this work was to study the effect of the cement addition on the thermo-mechanical ...
Recycling of Oily Waste Packaging by Pyrolysis / Reciklaža zauljene otpadne ambalaže procesom pirolize
(Society for robotics of B&H - Društvo za robotiku u Bosni i Hercegovini, 2016)
For commercial packing of lubricants, the most commonly used are polyethylene packing which are different designs and volume. After emptying the contents, used packing ending up as waste material in municipal landfills, ...
Energy Efficient Poly(Lactide) Obtaining by Microwave Synthesis
(University of Maribor Press, 2017)
The world is faced with the consequences of drastic reduction in fossil fuel reserves, because of their widespread use, not only as an energy source, but also as a feedstock for monomers obtaining. In order to solve this ...
Fermentation of lignocellulosic renewable resources and hydrogen production
(The Academy of Sciences and Arts of the Republic of Srpska, 2016)
Using cheap renewable raw materials such as lignocellulosic feedstock for hydrogen production by fermentation has great significance and potential to give a major contribution to future clean energy. Using hydrogen as a ...
New or rarely recorded diatoms taxa from Serbia (Dojkinačka stream, SE Serbia)
(Niš, Serbia : Department of Biology and Ecology, Faculty of Science and Mathematics, University of Niš, 2013)
Diatoms (Bacillariophyta) inhabiting different types of substrate including stone surfaces, sand, mud, filamentous algae and submerged mosses in the Dojkinačka stream (SE Serbia) were studied by light microscopy. Among ...
Diversity and ecology of diatoms from peat bog at Pester plateau (Serbia)
(Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung (AWI), 2015)
The subjects of the study were various types of diatom communities including epiphytes, benthos and plankton of the peat bog at Pešter plateau. A specific diatom flora inhabits all types of communities, comprising in total ...
Interesting Navicula Bory de Saint-Vincent species from Serbia
(Centre for ecological research, Hungarian academy of sciences centre of excellence, 2016)
The genus Navicula was originally described in 1822 by Bory de St. Vincent. The concept of Navicula has changed from extremely heterogeneous collective genus to a narrowly defined, apparently homogeneous genus. The group ...
The impact of trout farm effluent on diatoms richness in the Rasina river (Serbia)
(Macedonian Ecological Society, 2016)
The Rasina River is right tributary of the Zapadna Morava River, situated in central Serbia. The samples were collected in spring (April), summer (July) and autumn 2011, from 6 localities along the river at an altitudes ...
Diatoms on the green frogs skin (Pelophylax esculentus and P. ridibundus)
(Prague : Charles University in Prague, 2017)
It is known that diatoms may be present on the skin of various animals (whales, dolphins, manatees, turtles…) (Frankovich et al. 2015, Wetzel et al. 2012). In our study diatoms were collected from the skin of two green ...
Solving some problems in field of heat capacity by using of new correlation
(Banja luka : Akademija nauka i umjetnosti RS, 2013)
In the thermodynamics practice, both for semi – ideal and for real gases, the
dependence of the middle specific heat capacity of temperature, is usually determined by experimentally as linear function, mainly, for the ...