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Приказ резултата 21-30 од 98
Corrosion behavior of magnesium, aluminum and zinc as anodic materials in chloride based electrolytes for use in primary and secondary electrochemical power sources
(Elsevier Sci Ltd, Oxford, 2009)
Corrosion behavior of magnesium, aluminum and zinc in 0.2 mol dm(-3) NH4Cl; 0.1 mol dm(-3) NH4Cl with addition of 0.1 mol dm(-3) Na-citrate and corrosion behavior of zinc in 0.3 mol dm-3 NH4Cl with addition of 0.8 mol ...
Failure analysis of rotary screw pump / Analiza havarije rotacione vijčane pumpe
(Society for Structural Integrity and Life, Institute for Material Testing, 2009)
A case study of damage of a rotary high-pressure three screw oil hydraulic pump for regulator oil in hydroelectric power plant is presented. Results of chemical composition analysis, mechanical properties, impact energy ...
Cross-section analysis of the morphology of electrodeposited copper obtained in the hydrogen co-deposition range / Morfologija poprečnog preseka prevlaka bakra dobijenih elektrohemijskim taloženjem u oblasti ko-depozicije vodonika
(Serbian Chemical Society, 2009)
Cross-section analysis of copper deposits electrodeposited in the hydrogen co-deposition range at a constant overpotential and in a pulsating overpotential (PO) regime was performed. It was shown that a complete structural ...
Silver(I)-complexes with an itaconic acid-based hydrogel / Kompleksi srebra I kopolimernih hidrogelova na bazi itakonske kiseline
(Association of Chemical Engineers of Serbia, 2009)
Silver(I) itaconic acid-based hydrogel complexes were synthesized and characterized in order to examine the potential use of these systems; FTIR, AFM, in vitro fluid-uptake, metal sorption and antibacterial activity assay ...
Određivanje sadržaja teških metala u čajevima sa tržišta u Beogradu, Srbija / Determination of heavy metal concentrations in tea samples taken from Belgrade market, Serbia
(Savez hemijskih inženjera Srbije, 2009)
U ovom radu su ispitivane koncentracije bakra, cinka, mangana, nikla, kadmijuma i olova u uzorcima čajeva (crni, zeleni, nana, kamilica) uzetih iz lokalnih prodavnica u Beogradu u maju 2008. godine. Priprema uzoraka vršena ...
The influence of pesticide residues on chemical hazards in processing of raw vegetables and fruit / Uticaj rezidua pesticida na hemijske rizike u procesu prerade sirovog povrća i voća
(Univerzitet u Nišu - Tehnološki fakultet, Leskovac, 2009)
Pesticides are used in primary agricultural production, food industry, transportation and households. The presence of harmful pesticide residues in or on food has caused a great concern among the consumers. The aim of our ...
Local heat transfer coefficients during the evaporation of 1,1,1,2-tetrafluoroethane (R-134a) in a plate heat exchanger / Lokalni koeficijenti prelaza toplote pri isparavanju 1,1,1,2-tetrafluoretana (R-134a) u pločastom razmenjivaču toplote
(Serbian Chemical Society, Belgrade, 2009)
The evaporation heat transfer coefficient of the refrigerant R-134a in a vertical plate heat exchanger was investigated experimentally. The area of the plate was divided into several segments along the vertical axis. For ...
Frequency response analysis as a tool for fast evaluation of periodic operations. Case study: A heterogeneous catalytic reacator
(2nd European Process Intensification Conference (EPIC 2009), Venice, Italy, 2009)
One way to achieve process intensification is to operate the process in a periodic way, in order to obtain better average performance compared to the optimal steady-state operation. The source of the possible improvement ...
Natural resources protection by municipal solid waste recycling / Očuvanje prirodnih resursa reciklažom materijala iz komunalnog otpada
(Naučno-stručno društvo za zaštitu životne sredine Srbije - Ecologica, Beograd, 2009)
Rapid population growth, urbanization and industrial growth have led to severe waste management problems in the cities of developing countries. The improper management of municipal solid waste is a major source of air, ...
A novel bioreactor with mechanical stimulation for skeletal tissue engineering
(Association of the Chemical Engineers of Serbia, 2009)
The provision of mechanical stimulation is believed to be necessary for the functional assembly of skeletal tissues, which are normally exposed to a variety of biomechanical signals in vivo. In this paper, we present a ...