Претраживање
Приказ резултата 21-30 од 81
Conventional and spark-plasma sintering of cordierite powders synthesized by sol-gel methods
(Elsevier Sci Ltd, Oxford, 2013)
Cordierite powders synthesized by colloidal and alkoxide sol-gel methods were conventionally and spark-plasma sintered. The powders for the sintering investigations were obtained by calcination of the gels at a temperature ...
Evaluation of periodic processes with two modulated inputs based on nonlinear frequency response analysis. Case study: CSTR with modulation of the inlet concentration and flow-rate
(Pergamon-Elsevier Science Ltd, Oxford, 2013)
In our previous work, a new, fast and easy, nonlinear frequency response method for analysing potential improvements of reactor performance by forced periodic operation was presented. This method, which is based on Volterra ...
Experimental measurement and modelling of viscosity of the binary systems pyridine or nicotine with polyethylene glycols at T = (288.15-333.15) K. New UNIFAC-VISCO and ASOG-VISCO interaction parameters
(Elsevier Science Bv, Amsterdam, 2013)
Viscosities of four binary mixtures: pyridine + PEG200, pyridine + PEG400, nicotine + PEG200 and nicotine + PEG400 have been measured in temperature range 288.15-333.15 K with temperature step of 5 K and at the atmospheric ...
Catalysis of hydrogen evolution on different Pd/Au(111) nanostructures in alkaline solution
(Pergamon-Elsevier Science Ltd, Oxford, 2013)
Hydrogen evolution reaction (HER) was studied on Pd/Au(1 1 1) bimetallic surfaces in alkaline solution. Au(1 1 1) was modified by palladium nanoislands spontaneously deposited using PdSO4 center dot 2H(2)O and PdCl2 salts. ...
Kinetic measurements and in situ Raman spectroscopy study of the formation of TBAF semi-hydrates with hydrogen and carbon dioxide
(Pergamon-Elsevier Science Ltd, Oxford, 2013)
The kinetics of formation of semi-clathrate hydrates of tetra n-butyl ammonium fluoride (TBAF) with hydrogen (H-2) and carbon dioxide (CO2) were studied in order to elucidate their potential for H-2 storage as well as for ...
Correlation of microstructure with the wear resistance and fracture toughness of white cast iron alloys
(Korean Inst Metals Materials, Seoul, 2013)
The objective of this investigation was to set down (on the basis of the results obtained by the examination of white cast iron alloys with different contents of alloying elements) a correlation between chemical composition ...
Influence of size scale and morphology on antibacterial properties of ZnO powders hydrothemally synthesized using different surface stabilizing agents
(Elsevier Science Bv, Amsterdam, 2013)
Metal oxide nanoparticles represent a new class of important materials that are increasingly being developed for use in research and health-related applications. Although the antibacterial activity and efficiency of bulk ...
Phylogenetic Analysis of Dysbiosis in Ulcerative Colitis During Remission
(Lippincott Williams & Wilkins, Philadelphia, 2013)
Background: Presence of intestinal microbes is a prerequisite for the development of ulcerative colitis (UC), although deviation of the normal intestinal microbiota composition, dysbiosis, is presumably implicated in the ...
The influence of thin benzoate-doped polyaniline coatings on corrosion protection of mild steel in different environments
(Elsevier Science Sa, Lausanne, 2013)
The corrosion process of mild steel in the presence of benzoate-doped polyaniline coatings exposed to different environments (3% NaCl, atmosphere, and the Sahara sand) has been investigated. This system was also tested for ...
Hydrogen evolution on Au(111) catalyzed by rhodium nanoislands
(Elsevier Science Inc, New York, 2013)
Pronounced catalysis of hydrogen evolution reaction (HER) by rhodium nanoislands spontaneously deposited on Au(111) has been observed. Different Rh/Au(111) nanostructures were characterized ex situ by both height and phase ...