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The effect of Y2O3 addition on thermal shock behavior of magnesium aluminate spinel
(International Institute for the Science of Sintering, Beograd, 2009)
The effect of yttria additive on the thermal shock behavior of magnesium aluminate spinel has been investigated. As a starting material we used spinel (MgAl2O4) obtained by the modified glycine nitrate procedure (MGNP). ...
A comparative study of the electrochemical properties of carbon nanotubes and carbon black
(Elsevier Science Sa, Lausanne, 2009)
Two samples of commercial multi-walled carbon nanotubes (Sigma-Aldrich and Sun Nanotech) and a sample of carbon black (Vulcan XC-72R) were investigated in raw state and after the activation in nitric and sulfuric acid by ...
Correlation between apparent activation energy for hot working and temperature of no recrystallization in microalloyed steels
(Trans Tech Publications Ltd, Durnten-Zurich, 2003)
Two-stage linear ln[sinh(as)] vs 1/T plots, based on the stress data derived from either continuous or multipass flow curves generated by testing low carbon Nb/Ti microalloyed steel (Nb steel) and medium carbon V-microalloyed ...
Total lipids of the intramuscular tissue of fallow deer - Non-isothermal, non-oxidative and oxidative TG
(Springer, Dordrecht, 2007)
In this study non-isothermal non-oxidative and oxidative TG analysis was applied as a method for determining the thermal stability of the total lipids extracted from raw and maturing intramuscular tissue of fallow deer ...
New analytical HFET I-V characteristics model
(Natl Inst Optoelectronics, Bucharest-Magurele, 2006)
In this paper the new analytical model of current - voltage characteristics of a Heterostructure Field Effect Transistor (HFET), is proposed. The model is relatively simple, and at the same time, it describes complex HFET ...
The Candida rugosa lipase catalyzed synthesis of amyl isobutyrate in organic solvent and solvent-free system: A kinetic study
(Elsevier, Amsterdam, 2006)
The Candida rugosa lipase catalyzed esterification of butyric acid with amyl alcohol in isooctane and in solvent-free system was studied. Nearly complete conversion ( gt 95%) of substrates was achieved using low enzyme ...
Doped gamma-Bi2O3: synthesis of microcrystalline samples and crystal chemical analysis of structural data
(Walter de Gruyter Gmbh, Berlin, 2007)
A series of microcrystalline products containing the gamma-Bi2O3 phase doped with Co, Fe, Mn, Pb, Sb, Si, Ti, V and Zn has been prepared by solid state reaction. Based on the heating temperature and heating time, the ...
Ca-alginate hydrogel mechanical transformations - The influence on yeast cell growth dynamics
(Elsevier, Amsterdam, 2007)
A mathematical model was formulated to describe yeast cell growth within the Ca-alginate microbead during air-lift bioreactor cultivation. Model development was based on experimentally obtained data for the intra-bead cell ...
Electrophoretic deposition of thin alumina films from water suspension
(Elsevier, Amsterdam, 2002)
Alumina water suspensions have been prepared for thin alumina film deposition on steel. The type and quantity of deflocculant have been determined using zeta potential and viscosimetric measurements. The deposition was ...
Protective properties of epoxy coatings electrodeposited on steel electrochemically modified by Zn-Ni alloys
(Elsevier Science Sa, Lausanne, 2004)
A review is given on Zn-Ni alloys electrochemically deposited on steel under various deposition conditions. The influence of deposition current density and type of deposition solution on the chemical content, phase structure ...