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Assessment of viscoelastic crack bridging toughening in refractory materials
(Elsevier Sci Ltd, Oxford, 2008)
Viscoelastic bridges can be formed in refractory ceramics while cooling from high temperatures. Such bridges can shield crack tips, thus reducing the effective crack tip stress intensity factors leading to higher resistance ...
The optimization of zinc dialkyldithiocarbamates synthesis and determination of their antioxidant activity
(Association of the Chemical Engineers of Serbia, 2008)
A two-step optimized laboratory synthetic method of zinc dialkyldithiocarbamates is presented. In the course of the first phase, a sodium salt of dialkyldithiocarbamic acid has been synthesized from the dialkylamines, ...
Service life prediction for refractory materials
(Springer, New York, 2008)
Ultrasonic pulse velocity testing and image analysis were used to predict the thermal stability of cordierite-mullite refractories. Two compositions used as substrates in fast firing of porcelain whiteware, characterized ...
Estimation of single solute adsorption isotherms applying the nonlinear frequency response method using non-optimal frequencies
(Elsevier, Amsterdam, 2008)
In order to estimate single solute adsorption isotherms, the nonlinear frequency response (FR) of a chromatographic column is analyzed experimentally and evaluated using the concept of higher order frequency response ...
Heat transfer coefficient and pressure drop during refrigerant R-134a condensation in a plate heat exchanger
(Versita, Warsaw, 2008)
The condensation heat transfer coefficient and the two-phase pressure drop of refrigerant R-134a in a vertical plate heat exchanger were investigated experimentally. The area of the plate was divided into several segments ...
Surface carriers' concentration dynamics caused by a small alternating applied voltage
(Natl Inst Optoelectronics, Bucharest-Magurele, 2008)
One of our previous papers was devoted to threshold voltage in MOSFETs and MODFETs viewed as a problem of nonlinear dynamics. The behavior of surface carriers' concentration under D.C. (direct current) applied voltage has ...
Nanocomposite powders for new contact materials based on copper and alumina
(Association of the Chemical Engineers of Serbia, 2008)
This paper is a contribution to characterization of Cu-Al2O3 powders with nanostructure designed for the production of dispersion strengthened contact materials. New materials with predetermined properties can be successfully ...
Kinetics and specificity of Lipozyme-catalysed oil hydrolysis in supercritical CO(2)
(Inst Chemical Engineers, Rugby, 2008)
Blackcurrant seed oil is rich in linoleic and linolenic acids. Selective enzyme-catalysed oil hydrolysis was studied with aim to obtain different levels of alpha- and/or gamma-linolenic acid in the mixture of liberated ...
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 ...
In situ lead stabilization using natural and synthetic apatite
(Savez hemijskih inženjera, Beograd, 2008)
In this work, mineral apatite was investigated for the remediation of lead contamination. Two different apatite minerals were used: synthetic apatite, Ca10(PO4)6(OH)2 (hereafter denoted as HAP) and natural apatite from ...