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Refining of corrosive insulating oils by selective liquid-liquid extraction process
(42nd International Conference on Large High Voltage Electric Systems 2008, CIGRE 2008, 2008)
In recent years copper sulphide formation in transformer windings has been recognized as one significant risk factor for operation of power transformers, due to number of failures which have occurred as a consequence of ...
Antimicrobial activity of celery fruit isolates and SFE process modeling
(Elsevier, Amsterdam, 2008)
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 ...
Prediction of service life of cordierite-mullite refractory materials by non-destructive methods
(9th International Conference on Multiscale and Functionally Graded Materials, FGM IX, 2008)
Ultrasonic pulse velocity testing was used to perform non-destructive quality control of refractory plates used as substrates in fast firing of porcelain whitewares. The measurement of the ultrasonic velocity was used to ...
Synthesis and characterization of biodegradable aliphatic copolyesters with poly(ethylene oxide) soft segments
(Elsevier Ltd, 2008)
A series of multiblock poly(ether-ester)s based on poly(butylene succinate) (PBS) as the hard segments and hydrophilic poly(ethylene oxide) (PEO) as the soft segments was synthesized with the aim of developing degradable ...
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 characteristics and antibacterial activity of a silver-doped carbon monolith
(Natl Inst Materials Science, Ibaraki, 2008)
A carbon monolith with a silver coating was prepared and its antimicrobial behaviour in a flow system was examined. The functional groups on the surface of the carbon monolith were determined by temperature-programmed ...
Reciklovanje poliolefinskog otpada do energenta / Polyolephine waste recycling as source of power energy
(Association of Chemical Engineers of Serbia, 2008)
Poliolefinski otpad (polietilen, polipropilen) izvor je zagađivanja okoline. Razvijen je
veliki broj postupaka za reciklovanje poliolefinskog otpada. U ovome radu je prikazan
tehnološki postupak pod oznakom T-tehnologija® ...
Factors influencing the removal of divalent cations by hydroxyapatite
(Elsevier, Amsterdam, 2008)
The effect of pH, contact time, initial metal concentration and presence of common competing cations, on hydroxyapatite (HAP) sorption properties towards Ph2+, Cd2+, Zn2+, and Sr2+ ions was studied and compared using a ...