Претраживање
Приказ резултата 181-190 од 207
The use of image analysis for the study of interfacial bonding in solid composite propellant / Korišćenje analize slike za određivanje interakcija u čvrstim kompozitnim gorivima
(Serbian Chemical Society, Belgrade, 2007)
In the framework of this research, the program Image Pro Plus was applied for determining the polymer-oxidizer interactions in HTPB-based composite propellants. In order to improve the interactions, different bonding agents ...
Investigations of the reactivity of pyridine carboxylic acids with diazodiphenylmethane in protic and aprotic solvents, Part I: Pyridine mono-carboxylic acids / Ispitivanje reaktivnosti piridin-monokarbonskih kiselina u reakciji sa diazodifenilmetanom u protičnim i aprotičnim rastvaračima. Deo I
(Serbian Chemical Society, Belgrade, 2005)
Rate constants for the reaction of diazodiphenylmethane with isomeric pyridine carboxylic acids were determined in chosen protic and aprotic solvents at 30 °C, using the well known UV spectrophotometric method. The values ...
Modelling of volumetric properties of binary and ternary mixtures by CEOS, CEOS/Ge and empirical models / Modelovanje volumetrijskih svojstava binarnih i ternernih smeša pomoću CEOS, CEOS/Ge i empirijskih modela
(Serbian Chemical Society, Belgrade, 2007)
Although many cubic equations of state coupled with van der Waals-one fluid mixing rules including temperature dependent interaction parameters are sufficient for representing phase equilibria and excess properties (excess ...
Lipase catalyzed synthesis of flavor esters in non-aqueous media: Optimization of the yield of pentyl 2-methylpropanoate by statistical analysis / Sinteza mirisnih estara katalizovana lipazama u nevodenoj sredini - optimizacija prinosa pentil-2-metilpropanoata statističkom analizom
(Serbian Chemical Society, Belgrade, 2008)
In this study, the synthesis of pentyl 2-methylpropanoate employing a commercial lipase from Candida rugosa was investigated, the emphasis being placed on analyzing the effects of various process conditions on the yield ...
A study of the electrochemical activity of some macrolide antibiotics on a gold electrode in a neutral electrolyte / Proučavanje elektrohemijske aktivnosti nekih makrolidnih antibiotika na elektrodi od zlata u neutralnom elektrolitu
(Serbian Chemical Society, Belgrade, 2007)
The aim of the present study is to present the different reactivity of azithromycin and clarithromycin (pure and commercial) at a gold electrode in neutral electrolyte using cyclic linear sweep voltammetry under the same ...
Synthesis, structure and solvatochromism of 5-methyl-5-(3-or 4-substituted phenyl)hydantoins / Sinteza, struktura i solvatohromizam 5-metil-5-(3- ili 4-supstituisanih fenil)-hidantoina
(Serbian Chemical Society, Belgrade, 2009)
Several 5-methyl-5-(3- or 4-substituted phenyl)hydantoins were prepared and their ultraviolet absorption spectra were recorded in the region 200-400 nm in twelve solvents of different polarity. The effect of solvent ...
The mechanism of cathodic electrodeposition of epoxy coatings and the corrosion behaviour of the electrodeposited coatings / Mehanizam kataforetskog taloženja epoksidnih prevlaka i koroziono ponašanje dobijenih prevlaka
(Serbian Chemical Society, Belgrade, 2002)
The model of organic film growth on a cathode during electrodeposition process proposes the current density-time and film thickness-time relationships and enables the evaluation of the rate contents for the electrochemical ...
ESI-MS spectra of 3-cyano-4-(substituted phenyl)-6-phenyl-2(1H)-pyridinones / ESI-MS spektri 3-cijano-4-(supstituisani fenil)-6-fenil-2(1H)-piridinona
(Serbian Chemical Society, Belgrade, 2009)
Twelve 3-cyano-4-(substituted phenyl)-6-phenyl-2(1H)-pyridinones were investigated by tandem mass spectrometry using positive as well as negative electrospray ionization. The influence of the electron affinity of the ...
Saturated-liquid heat capacity calculation of alkanes / Predskazivanje toplotnog kapaciteta zasićene tečnosti alkana
(Serbian Chemical Society, Belgrade, 2005)
An empirical model for the calculation of the heat capacity of alkanes is recommended. This model was tested and compared to known models (Luria-Benson and Růžička-Domalski) using 68 sets with 1155 literature experimental ...
(NH4)2SO4 corrosion of cement in concrete analyzed by an improved mathematical model / (NH4)2SO4 korozija cementa u betonu analizirana poboljšanim matematičkim modelom
(Serbian Chemical Society, Belgrade, 2009)
This paper gives a critical analysis of the equation that predicts and estimates the progress of degradation for various building materials, recently proposed by Matsufuji et al.1 After the analysis, the paper suggests an ...