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Prikaz rezultata 1-10 od 699
Ecobiological study of medicinal plants in some regions of Serbia
(Czech Academy Agricultural Sciences, Prague, 2006)
Ecobiological study of medicinal plants includes the analysis of particular soil features and the ecological indexes of plant species as site indicators. Two experimental serpentine areas in northwest and central Serbia ...
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 ...
Bioprotective agents in safety control / Bioprotektivni agensi u kontroli zdravstvene bezbednosti
(Association of Chemical Engineers of Serbia, 2003)
Food poisoning is the one of the main health hazards even today. More than 200 known diseases are transmitted through food. The causes of foodborne illness include viruses, bacteria, parasites, toxins, metals, and prions ...
The use of image analysis for the interaction of 1,3,5-trisubstituted isocyanurates with oxidizer and different binders in composite materials / Korišćenje analize slike za utvrđivanje interakcije 1,3,5-trisupstituisanih izocijanurata sa oksidansom i različitim vezivima u kompozitnim gorivima
(Association of Chemical Engineers of Serbia, 2006)
Composite propellants are non-homogenous propellants and comprise primarily crystalline oxidizer and metal fuels uniformly suspended in a resin binder. The strength of the bonds between the polymer matrix and the oxidizer ...
Kinetics of the reaction of 5-substituted orotic acids with diazodiphenylmethane / Kinetika reakcije 5-supstituisanih orotinskih kiselina sa dizaodifenilmetanom
(Serbian Chemical Society, Belgrade, 2004)
Rate konstants for the reaction of eight 5-substituted orotic acids with diazodiphenylmethane (DDM) in dimethylformamide (DMF) were determined at 30 ºC by the known spectrophotometricmethod. The determined rate constants ...
The kinetics of the reaction of 6-substituted nicotinic acids and some p-substituted benzoic acids with diazodiphenylmethane in various alcohols / Kinetika reakcija 6-supstitutisanih nikotinskih kiselina i nekih p-supstituisanih benzoevih kiselina sa diazodifenilmetanom u različitim alkoholima
(Serbian Chemical Society, Belgrade, 2000)
Rate constants have been determined for the reactions of diazodiphenylmethane with a number of 6-substituted nicotinic acids and p-substituted benzoic acids in twelve alcohols. A comparative study was used to evaluate and ...
Synthesis and characterization of bioglass thin films
(Inst Materials Physics, Bucharest, 2007)
We report the successful pulsed laser deposition on medical grade Ti substrates of thin films made of two bioactive glasses in the SiO2 - Na2O- K2O - CaO - MgO - P2O5 system. The films were topographically and chemically ...
Analysis of amphetamines illegally produced in Serbia / Analiza amfetamina ilegalno proizvedenog u Srbiji
(Serbian Chemical Society, Belgrade, 2008)
Forensic practice in the Republic of Serbia faced the illegal production of amphetamine for the first time in 2003. This paper presents the results of the chemical characterization of 32 batches of amphetamine samples from ...
Synthesis and investigation of solvent effects on the ultraviolet absorption spectra of 1, 3-bis-substituted-5, 5-dimethylhydantoins / Sinteza i ispitivanje efekata rastvarača na UV spektre 1,3-bis-supstituisanih-5,5-dimetilhidantoina
(Serbian Chemical Society, Belgrade, 2003)
A series of 1,3-bis-substituted-5,5-dimethylhydantoins was synthesized using the reaction of 5,5-dimethylhydantoin with the corresponding alkyl halide in the presence of trimethylamine as catalyst and sodium hydroxide, ...
Electrochemical properties and thermal stability of epoxy coatings electrodeposited on aluminium and modified aluminium surfaces / Elektrohemijske karakteristike i termička stabilnost epoksidnih kataforetskih prevlaka na aluminijumu i modifikovanim površinama aluminijuma
(Serbian Chemical Society, Belgrade, 2001)
The corrosion behavior of epoxy coatings electrodeposited on aluminum, as well as on electrochemically and chemically modified aluminum were investigated during exposure to 3 % NaCl. Electrochemical impedance spectroscopy ...