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Приказ резултата 41-50 од 3242
Vapor-liquid equilibria of triglycerides-methanol mixtures and their influence on the biodiesel synthesis under supercritical conditions of methanol / Ravnoteža para-tečnost za sistem trigliceridi-metanol i njen uticaj na kinetiku sinteze biodizela pod uslovima natkritičnog metanola
(Serbian Chemical Society, Belgrade, 2007)
The non-catalytic synthesis of biodiesel (fatty acids methyl esters) from triglycerides and methanol proceeds at elevated pressures above 100 bar and temperatures above 523 K. Kinetic investigations of the system revealed ...
Photoelectrochemical properties of sol-gel obtained titanium oxide / Fotoelektrohemijska svojstva titan-oksida dobijenog sol-gel postupkom
(Serbian Chemical Society, Belgrade, 2008)
The photoelectrochemical properties of a sol-gel prepared titanium oxide coating applied onto a Ti substrate were investigated. The oxide coating was formed from an inorganic sol thermally treated in air at 350°C. The ...
Simultaneous correlation of the excess enthalpy and W-shaped excess heat capacity of 1, 4-dioxane- n-alkane systems by PRSV-HVOS CEOS / Simultano korelisanje dopunske entalpije i dopunskog toplotnog kapaciteta sa w-oblikom eksperimentalnih tačaka kod sistema 1,4-dioksan+n-alkani pomoću prsv-hvos ceos
(Serbian Chemical Society, Belgrade, 2003)
In this work the Peng-Robinson-Stryjek-Vera (PRSV) equation of state coupled with the Huron-Vidal-Orbey-Sandler (HVOS) rule was tested for the correlation of the excess enthalpy (HE) and the excess heat capacity (cp E) ...
Temperature dependence of the Kovats retention indices for alkyl 1, 3-diketones on a DB-5 capillary column / Temperaturna zavisnost kovačevih retencionih indeksa 1,3-diketonan a DB-5 kapilarnoj koloni
(Serbian Chemical Society, Belgrade, 2004)
A series of alkyl 1,3-diketones were used to study the temperature dependence of the Kovats retention indices in the temperature range 130–190 ºC (403–463 K). The temperature dependence is described by the empirical equation ...
Glass-ceramic enamels derived from the Li2O-Na2O-Al2O3-TiO2-SiO2 system / Staklo-keramički emajli izvedeni iz sistema Li2O-Na2O-Al2O3-TiO2-SiO2
(Serbian Chemical Society, Belgrade, 2002)
The results of research on the conditions for obtaining model glass-ceramic enamels, derived from the basic Li2O-Na2O-Al2O3-TiO2-SiO2 system, by varying the initial composition and thermal treatment conditions, are presented ...
Carrier's mobility temperature dependence in analytical model of SiC based MOSFET structure current-voltage characteristics / Temperaturna zavisnost pokretljivosti nosilaca u analitičkom modelu strujno-naponskih karakteristika MOSFET strukture izrađene na bazi SiC
(Savez inženjera i tehničara Srbije, Beograd, 2007)
In this paper temperature dependence on current-voltage characteristics of a SiC based MOSFET structure is considered. This influence is modeled by introducing temperature impact on carrier's mobility. Proposed model ...
Analytical models of temperature impact on SiC MOSFET structure transconductance and output conductance / Analitički modeli uticaja temperature na transkonduktansu i izlaznu konduktansu sic mosfet strukture
(Savez inženjera i tehničara Srbije, Beograd, 2009)
In this paper, the results of investigation and modeling one of the most frequently used electron component - MOSFET (Metal Oxide Semiconductor Field Effect Transistor), made of SiC, are presented. At the begging, very ...
Synthesis of Silica Particles Using Ultrasonic Spray Pyrolysis Method
(Metals, 2021)
Silica has sparked strong interest in hydrometallurgy, catalysis, the cement industry, and paper coating. The synthesis of silica particles was performed at 900 degrees C using the ultrasonic spray pyrolysis (USP) method. ...
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 ...
Adhesion of epoxy cataphoretic coatings on Zn alloys / Adhezija epoksidnih kataforetskih prevlaka na legurama cinka
(Serbian Chemical Society, Belgrade, 2007)
One of the most important factors in corrosion prevention by protective coatings is the loss of coating adhesion under environmental influence. In this work, the adhesion of epoxy cataphoretic coatings was examined on steel ...