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Приказ резултата 31-40 од 67
Effect of substituents on the 13C-NMR chemical shifts of 3-methylene-4-substituted-1, 4-pentadienes - Part I / Efekti supstituenata na 13C-NMR hemijska pomeranja 3-metilen-4-supstituisanih-1,4-pentadiena - deo I
(Serbian Chemical Society, Belgrade, 2003)
The principles of linear free energy relationships were applied to the 13C substituent chemical shifts (SCS) of the carbon atoms in the unsaturated chain of 3-methylene-4-substituted-1,4-pentadienes. Correlations of the ...
Rheokinetic study of crosslinking of α,ω-dihydroxy oligo(alkylene maleate)s with a trisisocyanate / Reokinetičko izučavanje umrežavanja α,ω-dihidroksi oligo(alkilen maleata) triizocijanatima
(Serbian Chemical Society, Belgrade, 2003)
The crosslinking reaction of three series of α,ω-dihydroxy oligo(alkylene maleate)s with a trifunctional isocyanate was followed by dynamic mechanical analysis and FTIR spectroscopy. The evaluation of rheological parameters ...
Electrochemical deposition and characterization of Zn-Fe alloy coatings / Elektrohemijsko dobijanje i karakterizacija prevlaka legura cink-gvožđe
(Engineering Society for Corrosion, Belgrade, Serbia, 2003)
The influence of the deposition current density and temperature of deposition solution on the phase structure and corrosion properties of Zn-Fe alloys was examined. Alloys were deposited on a rotating disc electrode and ...
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, ...
The kinetics of the reactions of 2-substituted nicotinic acids with diazodiphenylmethane in various alcohols / Kinetika reakcija 2-supstituisanih nikotinskih kiselina sa diazodifenilmetanom u različitim alkoholima
(Serbian Chemical Society, Belgrade, 2003)
The rate constants of 2-substituted nicotinic acids in reaction with diazodiphenylmethane (DDM) in eight alcohols at 30 ºC have been determined. In order to explain the obtained results through solvent effects, the second ...
Ibuprofen: Synthesis, production and properties / Ibuprofen - dobijanje i svojstva
(Association of Chemical Engineers of Serbia, 2003)
Since its introduction in 1969, ibuprofen has become one of the most common painkillers in the world. Ibuprofen in an NSAID (non-steroidal anti-inflammatory drug) and like other drugs of its class it possesses analgetic, ...
Calculation of elasticity modulus of particulate composite biomaterials using finite element method / Numeričko određivanje modula elastičnosti čestično kompozitnih biomaterijala primenom metode konačnih elemenata
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2003)
The influence of particle geometry, volume fraction and particle distribution on the modulus of elasticity of a hydroxyapatite (HAp) particulate reinforced polymer (poly -L-lactide) matrix composite biomaterial was ...
Electrochemical synthesis and corrosion behavior of thin polyaniline film on mild steel / Elektrohemijska sinteza i koroziono ponašanje tankih filmova polianilina na mekom čeliku
(Engineering Society for Corrosion, Belgrade, Serbia, 2003)
The electrochemical synthesis of polyaniline (PANI) on mild steel from the sodium-benzoate solutions has been investigated. It has been concluded that thin, highly adherent, polyaniline films could be obtained by anodic ...
Immobilization of fish chromatophores for use as a micro-biosensor for biological toxins / Imobilizacija hromatofora riba radi korišćenja kao biosenzor za biološke toksine
(Association of Chemical Engineers of Serbia, 2003)
Chromatophores isolated from the Siamese fighting fish, Betta splendens represent a class of living cells that provide a vivid color response to microbial pathogens and environmental toxins. The selection of the most ...
Embedding of optical fibers as sensors in thermoplastic composite laminates / Ugradnja optičkih vlakana kao senzora u slojevite termoplastične kompozitne materijale
(Institut bezbednosti, Beograd, 2003)
Application of optical fibers as sensors for the purpose of in-service health monitoring in composite materials have increased in last few years. Advantages of optical fiber sensors over conventional sensing methods are ...