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Приказ резултата 61-70 од 216
Structural effects during CO adsorption on Pt-bimetallic surfaces I. The Pt(100) electrode
(Elsevier, Amsterdam, 2000)
Synchrotron surface X-ray scattering (SXS) and rotating ring disk electrode (RRDE) measurements have been performed during the coadsorption of metal adatoms and carbon monoxide on the Pt(100) surface in an electrochemical ...
The influence of zinc surface pretreatment on the adhesion of epoxy coating electrodeposited on hot-dip galvanized steel
(Elsevier Science Sa, Lausanne, 2007)
The adhesion and electrochemical properties of epoxy coatings electrodeposited on hot-dip galvanized steel with and without passive films were investigated during exposure to 3% NaCl. The passive films were formed in hot ...
Metal sorption on macroporous poly(GMA-co-EGDMA) modified with ethylene diamine
(Elsevier Science Bv, Amsterdam, 2004)
Two samples of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate), poly(GMA-co-EGDMA), with different porosity parameters were synthesized by suspension copolymerization and modified by ...
Synthesis of nanosized calcium hydroxyapatite particles by the catalytic decomposition of urea with urease
(Cambridge Univ Press, New York, 2007)
Nanosized calcium hydroxyapatite particles were synthesized by the catalytic decomposition of urea with urease. The influence of the synthesis parameters, i.e., temperature and ratio of the reagents/urease concentrations, ...
Solids holdup and pressure drop in gas-flowing solids-fixed bed contactors
(Amer Chemical Soc, Washington, 2003)
Fundamentally based model for pressure drop in gas-flowing solids-fixed bed contactors is presented, together with a phenomenological semiempirical model for prediction of dynamic holdup. These simple models do not require ...
The non-oxidative thermal degradation of poly(di-n-alkyl itaconates). II. Analysis of the polymer residue
(Elsevier Sci Ltd, Oxford, 2005)
The residues remaining after the thermal degradation of poly(di-n-alkyl itaconates) with ester substituents ranging from methyl to n-octyl were studied. It was found that the thermal stability of the polymers decreased ...
Supercritical carbon dioxide essential oil extraction of Lamiaceae family species: Mathematical modelling on the micro-scale and process optimization
(Pergamon-Elsevier Science Ltd, Oxford, 2005)
In this paper the essential oil supercritical carbon dioxide extraction from leaves of Lamiaceae family species was studied. Recent investigations of Lamiaceae family essential oil storage have shown that most of the oil ...
Experimental design approach in the synthesis of hydroxyapatite by neutralization method
(Elsevier, Amsterdam, 2005)
Physicochemical properties of hydroxyapatite (HAP) synthesized by neutralization method are heavily dependent on the process variables. A Plackett-Burman two-level experimental design was therefore, chosen to screen a large ...
The non-oxidative thermal degradation of poly(di-n-alkyl itaconates). I. Analysis of the thermolysis volatiles
(Elsevier Sci Ltd, Oxford, 2005)
The volatiles arising from the thermal degradation of poly(di-n-alkyl itaconates) with ester substituents ranging from methyl to n-octyl were analysed. The corresponding monomer was found to be the major degradation product. ...
Thermal stability of starch benzoate
(Elsevier Sci Ltd, Oxford, 2005)
Starch esterification with benzoyl chloride was performed in two steps, the first being the alkali treatment of the starch and the second, esterification. Samples of hydrophobic starch benzoate were synthesized with degrees ...