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Prikaz rezultata 21-30 od 968
The influence of fly ash characteristics and reaction conditions on strength and structure of geopolymers
(Elsevier Sci Ltd, Oxford, 2015)
Reactivity of Class F fly ash (FA), development of strength, and structure of FA-based geopolymers, depending on the reaction conditions, were examined in this paper. The results of SEM/EDS and NMR analyses revealed that ...
Concentrations of metals and trace elements in different tissues of nine fish species from the meduvrsje reservoir (west Morava river basin, Serbia)
(Srpsko biološko društvo, Beograd, i dr., 2016)
Element concentrations in selected fish species from different trophic levels were analyzed. The following fish species were analyzed: common nase (Chondrostoma nasus), roach (Rutilus rutilus), freshwater bream (Abramis ...
Elemental concentrations in different tissues of European perch and black bullhead from Sava lake (Serbia)
(University of Ljubljana - Veterinary Faculty, 2015)
Distribution of 17 chemical elements in gills, muscle, and liver of the European perch (Perca fluviatilis) and black bullhead (Ameiurus melas) from the Sava Lake (Serbia) was studied to detect bioaccumulation patterns in ...
Pt nanoparticles on tin oxide based support as a beneficial catalyst for oxygen reduction in alkaline solutions
(Royal Soc Chemistry, Cambridge, 2015)
A platinum nanocatalyst on Sb doped tin oxide support (Sb-SnO2) was synthesized and characterized as a catalyst for oxygen reduction reaction in 0.1 mol dm(-3) NaOH solution at 25 degrees C. Sb (5%) doped tin oxide support ...
Acetylcholinesterase [AChE] Activity of Colorado Potato Beetle Populations in Serbia Resistant to Carbamates and Organophosphates
(Ars Docendi, Bucharest, 2017)
The resistance levels of the Colorado potato beetle (CPB) in Serbia to organophosphorus (OP) and carbamate (C) insecticides varied by population. The resistance level of populations to OPs indescending order was: Futog, ...
The effects of plant growth regulators on growth, yield, and phenolic profile of lentil plants
(Academic Press Inc Elsevier Science, San Diego, 2012)
The effects of plant growth regulators (PGRs) such as gibberellic acid (GA(3)), indole-3-acetic acid (IAA), kinetin, Prohexadione-Calcium (Prohex-Ca), and Topflor on lentil plants were investigated employing physiological ...
Oxygen regulation of alternative respiration in fungus Phycomyces blakesleeanus: connection with phosphate metabolism
(Elsevier, Amsterdam, 2013)
Environmental changes can often result in oxygen deficiency which influences cellular energy metabolism, but such effects have been insufficiently studied in fungi. The effects of oxygen deprivation on respiration and ...
Concentrations of 17 elements in muscle, gills, liver and gonads of five economically important fish species from the Danube River
(Edp Sciences S A, Les Ulis Cedex A, 2012)
The Danube River in the vicinity of the city of Belgrade receives large amounts of untreated or poorly treated communal and industrial waste waters. The aim of this study was to assess elemental accumulation patterns in a ...
Mn-Zn Ferrite Round Cable EMI Suppressor With Deep Grooves and a Secondary Short Circuit for Different Frequency Ranges
(IEEE-Inst Electrical Electronics Engineers Inc, Piscataway, 2013)
A novel Mn-Zn ferrite round cable electromagnetic interference (EMI) suppressor with deep grooves and a secondary short circuit was constructed, realized and measured. Three steps were passed in novel suppressor development: ...
Analysis of a Mn-Zn Ferrite Bundle EMI Suppressor Using Different Suppressing Principles and Configurations
(IEEE-Inst Electrical Electronics Engineers Inc, Piscataway, 2013)
A novel round cable electromagnetic interference (EMI) suppressor comprising a bundle of Mn-Zn ferrite tubes was realized using different principles of suppressing, such as direct suppressing, inverting/suppressing, ...