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New taxon of the genus Navicula (Bacillariophyceae) for the diatom flora of Serbia
(Valjevo (Serbia) : Bojan Petrovic, 2014)
The main objective of this paper is to report benthic, epilithic diatom species from the Raška River. First time Husted described Navicula jakovljevicii in 1945. This taxon has been found outside the Balkan area for the ...
Epiphytic diatoms from genus Navicula (Suvi Do, Pešte plateau, Serbia)
(Beograd : Srpsko društvo za zaštitu voda, 2013)
Rad sadrži podatke o sastavu epifitskih silikatnih algi roda Navicula (sensu stricto i sensu lato) sa lokaliteta Suvi Do (Pešterska visoravan, Srbija). Uzorci su sakupljani u julu i septembru 2008. godine i u maju 2009. ...
The application of diatom indices for water quality assessment – case study of Jovac and Ročnjak streams
(University of Belgrade - Faculty of Agriculture, 2018)
U ovom istraživanju predstavljeni su rezultati analize epilitskih zajednica silikatnih algi
iz potoka Jovac i Ročnjak, dve pritoke akumulacije Vrutci. Uzorci su sakupljani mesečno u
periodu od decembra 2014. do oktobra ...
Proposal for determining the minimum volume of the reservoir for characteristic compressed gases based on the concept of maximum work / Predlog za određivanje minimalne zapremine rezervoara za karakteristične komprimovane gasove na bazi koncepta maksimalnog rada
(Proceedings of 49th International HVAC&R Congress and Exhibition, 2018)
Starting from the main relation for closed thermodynamic systems for maximum work of reverse processes, a general model for determining the minimum volume of the tank containing compressed ideal gases, nitrogen and oxygen, ...
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 ...
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, ...
Dimensioning and assemblying of brazed aluminium heat exchanger for needs of agricultural process plants
(Belgrade: University of Belgrade - Faculty of Agriculture, 2023)
Heat exchangers used in agricultural processes are mainly manufactured by three technologies: brazed copper-brass, mechanically assembled aluminum and brazed aluminum. The appropriate choice depends on various criteria: ...
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 ...
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 ...
Analytical error during selection of reference state in thermodynamic of ideal gas / Analitička greška kod izbora referentnog stanja u termodinamici idealnog gasa
(Banja Luka, Republic of Srpska, Bosnia and Herzegovina : Tehnološki fakultet Univerziteta u Banjoj Luci, 2016)
The paper is based on the fact that the internal energy, enthalpy and enthropy as most important thermodynamic state functions, can not be determined in absolut terms without reference state slections. It is demonstrated ...