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Приказ резултата 61-70 од 100
Stanje i pravci razvoja materijalno-tehničkih aspekata sredine za učenje/nastavu hemije u beogradskim osnovnim školama
(Beograd : Savez pedagoških društava Jugoslavije, 2013)
Теоријска разматрања и емпиријска истраживања указују да је средина за учење/наставу важан фактор за реализацију наставе високог квалитета. Параметри за уређење средине за учење/наставу хемије у Републици Србији стандардизовани ...
Characterisation of fly ash-based geopolymers activated with sodium silicate
(University of Belgrade, Technical Faculty in Bor and Mining and Metallurgy Institute Bor, Serbia, 2014)
The present work examines the effects of sodium silicate activating solution on the properties of fly ash-based geopolymers. Various geopolymers were synthesized utilizing fly ash, sodium silicate solution and NaOH. Moduli ...
Light propagation in quasi-periodic Fibonacci waveguide arrays
(Journal of the Optical Society of America B, 2015)
We investigate light propagation along one-dimensional quasi-periodic Fibonacci waveguide array optically induced in Fe:LiNbO3 crystal. Two Fibonacci elements, A and B, are used as a separation between waveguides. We ...
The use of river hopper barges as facilities for aquaculture: The growth characteristics of carp (Cyprinus carpio) depending on stocking density
(Journal of Agricultural Sciences, Belgrade, 2010)
Ground Bounce Reduction in Digital Circuit Using EMI Suppressors
(IEEE 16th International Symposium on Power Electronics-Ee2011, 2011)
Ground noise voltage generated by a logic gate on a signal return conductor is investigated in this paper. An analytical method for calculating the ground bounce and the factors that affect it are discussed. The efficiency ...
The analysis of genotoxic effect of trace elements on erytrocites of barbel (Barbus barbus) with standard alkaline comet assay
(European Environmental Mutagen Society, Španija, 2011)
The resistance of alkali-activated cement-based binders to chemical attack
(Woodhead Publishing, 2014)
This chapter provides an overview on resistance of alkali-activated binders to the effects of various aggressive aqueous solutions. Alkali-activated binders show generally good resistance to sulphate attack. Higher resistance ...
Поступак за добијање портланд-цементног клинкера
(2010)
Портланд-цемент је најважнији материјал који се користи у грађевинарству, за израду бетона. Добија се од смеше природних сировина које су необновљиве (кречњак, лапорац, глина). За производњу једне тоне цементног клинкера, ...
Dopamine-modified pectins for laccase induced hydrogel formation and immobilization
(Serbian Biochemical Society, 2019)
Pectins belong to a group of a plant polysaccharides that are structural components of plant
cell walls. These polysaccharides have big potential for use in the food industry as a
gelling agents and biomedical application ...
Climate Change and Adoption Strategies – A Report from the Republic of Serbia
(Springer, Dordrecht., 2012)
This paper deals with global climate change, which is one of the most pressing environmental, economic, political and social issues of the world. Serbia is no exception, and there is obvious evidence about climate changes ...