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USE OF GEOGEBRA IN THE STUDY OF ROTATIONS
(Western Serbia Academy of Applied Studies, Užice (Serbia), 2021-10-08)
With the development of information technologies and educational software, there was a need for research and examination of how and in what way to use them in teaching, without losing the quality of existing traditional ...
Assessment of air temperature and precipitation trends: case study of Mačva (Serbia)
(University of Novi Sad, Faculty of Sciences, Department of Geography, Tourism and Hotel Management, Novi Sad, 2021-09-29)
Recent climate change causes significant natural and socio-economic consequences. Global climate changes are caused by natural processes and anthropogenic factor. They represent one of the major environmental problems of ...
Determinisanje promena u SRP “Gornje Podunavlje” (AP Vojvodina) primenom CORINE Land Cover (CLC) baze podataka (1990-2018)
(Asocijacija prostornih planera Srbije, Univerzitet u Beogradu – Geografski fakultet, Beograd., 2021-10-27)
Specijalni rezervat prirode (SRP) „Gornje Podunavlje“ je lociran u severozapadnoj Bačkoj, uz panonski sektor toka Dunava. U radu su predstavljene promene na osnovu CORINE Land Cover (CLC) baze podataka (1990-2018) za ...
The influence of the modification of the montmorillonite KSF and K10 on the hydrolytic stability of UF composites
(2021-09-24)
In this work, the hydrolytic stability of composites based on the urea-formaldehyde resin (UF) and montmorillonite-MMT (K1 0 and KSF) as a formaldehyde (FA) scavenger was investigated. K10 and KSF were activated by sodium ...
The effect of UV-irradiation on the thermal stability of modified urea-formaldehyde resins with thermally activated montmorillonite
(RAD Centre, 2021-06-14)
The montmorillonite as a 2:1 smectite type clay has two tetrahedral sheets of silica sandwiching the alumina octahedral sheet. The particles of this mineral are plate-shaped with the thickness of 0.96 nm and an average ...
Irradiation resistance of elastomeric composites based on NR/CSM blend and waste rubber powder
(RAD Centre, Niš, Serbia, 2021-06-14)
Effect of waste rubber particles (WTR) size on elastomers based on natural rubber and chlorosulfonated polyethylene rubber (NR/CSM= 50:50) was studied. Two types of WTR with different particle size (150–250 μm and 450–600μm) ...
Domestic material made by calcification of modified UF resins with incorporated Fe-particles-a sensitive platform for electroanalytical quantification of gallic acid.
(University "Union Nikola Tesla", Belgrad, Serbia, 2021-09-24)
In this work, we present domestic high performance electrode material
prepared by thermolysis of in situ synthesized urea-formaldehyde (UF)
resins modified with Fe(III) nitrate. For comparison, material produced ...
Security and Standardization at E-learning platforms
(2021-07-01)
The process of developing e-learning is based on standards in the field of information security (ISO) and learning technologies (IEEE, IMS), and criteria for quality assurance have been taken as input parameters. The overall ...