Претраживање
Приказ резултата 1-10 од 895
The effect of hydrogen co-deposition on the morphology of copper electrodeposits. II. Correlation between the properties of electrolytic solutions and the quantity of evolved hydrogen
(Elsevier, 2008)
Formation of irregular deposits by electrodeposition from acid sulfate solutions of various H2SO4 concentrations was examined by the determination of the average current efficiency of hydrogen evolution and by the scanning ...
Barium strontium titanate powders prepared by spray pyrolysis
(Elsevier Science Sa, Lausanne, 2005)
Ultasonic spray pyrolysis (SP) has been investigated for the production of the barium strontium titanate (BST) powders from the polymeric precursors. The processing parameters, such as flux of aerosol and temperature profile ...
A Kinetic Study of Candida rugosa Lipase-Catalyzed Synthesis of 4,6-Dimethyl-3-cyano-2-pyridone
(Sociedade Brasileira de Química, 2010)
The synthesis of 4,6-dimethyl-3-cyano-2-pyridone was studied in a reaction catalyzed with Candida rugosa lipase. A response surface methodology (RSM) was applied for the optimization of the experimental conditions. The ...
Photochemical Behavior of the Insecticide Methomyl Under Different Conditions
(Taylor & Francis Inc, Philadelphia, 2010)
This article describes the photolytic and photocatalytic removal of the insecticide methomyl at low concentration from different types of water, upon UV, visible or natural solar light radiation, in the presence of TiO2 ...
Surface characterisation of PLLA polymer in HAp/PLLA biocomposite material by means of nanoindentation and artificial neural networks
(Taylor & Francis Ltd, Abingdon, 2010)
In this paper, the mechanical properties of polymer matrix phase (modulus of elasticity, yield stress and work hardening rate) have been determined using combined methods such as nanoindentation, finite element modelling ...
Kinetic study of methanol oxidation on carbon-supported PtRu electrocatalyst
(Pergamon-Elsevier Science Ltd, Oxford, 2003)
Methanol electrooxidation was investigated on the carbon-supported PtRu electrocatalyst (1:1 atomic ratio) in acid media. X-ray diffraction measurement indicated alloying of Pt and Ru. Cyclic voltammetry of the sample ...
Oxidation of carbon monoxide and formic acid on bulk and nanosized Pt-Co alloys
(Springer, New York, 2012)
Bulk Pt3Co and nanosized Pt3Co and PtCo alloys supported on high area carbon were investigated as the electrocatalysts for the COads and HCOOH oxidation. Pt3Co alloy with Co electrochemically leached from the surface (Pt ...
Fabrication and characterization of HA-ZrO2-MWCNT ceramic composites
(Sage Publications Ltd, London, 2010)
In this article, a new kind of hydroxyapatite-zirconia-carbon nanotube (HA-ZrO2-MWCNT) ceramic composites was fabricated to enhance the mechanical properties of a hydroxyapatite (HA) ceramic for satisfying various requirements ...
Preparation of Silver(I) Complexes with Itaconic Acid-Based Hydrogels for Biomedical Application
(Taylor & Francis Inc, Philadelphia, 2009)
Silver(I) complexes based on itaconic acid hydrogel were prepared and characterized in order to examine the potential use of these materials. FTIR, AFM, in vitro fluid-uptake, metal sorption, and antibacterial activity ...
Comparative analysis of fecal DNA extraction methods with phylogenetic microarray: Effective recovery of bacterial and archaeal DNA using mechanical cell lysis
(Elsevier Science Bv, Amsterdam, 2010)
Several different protocols are used for fecal DNA extraction, which is an integral step in all phylogenetic and metagenomic approaches to characterize the highly diverse intestinal ecosystem. We compared four widely used ...