Materials Literature
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The high prospects of galvanic displacement for the preparation of high-reactivity mixed catalysts with a small content of platinum metal have been shown for a Pd(Cu)/support system.
Nanoparticles of FePd and FePdPt with the average size of ∼3 nm have been prepared by modified polyol route. As‐prepared nanoparticles are crystallized in fcc phase, whereas, 550–600° C annealed nanoparticles are crystallized in fct phase. As‐prepared samples are superparamagnetic at 300 K, whereas, annealed samples a…
Tight focusing properties of partially coherent radially polarized vortex beams are studied based on vectorial Debye theory. We focus on the focal properties including the intensity and the partially coherent and polarized properties of such partially coherent vortex beams through a high numerical aperture objective.…
Received: J anuary 17,2009 Abstract. ZrTiO4 was obtained from zirconium n-propoxide and titanium isopropoxide, at the Zr:Ti molar ratio of 1:1, in propanol, through the sol-gel process at ambient temperature. ZrTiO4 pow-34ABF4A4CA40C43C74A<0;H0C O \n O 0=3O5>A \t 7'74?>F34AB>1C08=43F4A4 characterized by thermal analys…
Pre-embedding nanogold silver and gold intensification methods involve immunoreactions with nanogold-labeled antibodies and intensification of the nanogold particles before embedding and ultrathin sectioning. These highly sensitive methods show good resolution and ultrastructural preservation. They also are useful for…
Abstract– None of the well‐established nitrogen‐related IR absorption bands, common in synthetic and terrestrial diamonds, have been identified in the presolar diamond spectra. In the carbonado diamond spectra, only the single nitrogen impurity (C center) is identified and the assignments of the rest of the nitrogen‐r…
Short-term variations in the response of ground heat exchangers (GHEs) have significant effects on the overall performance of ground source heat pump (GSHP) systems. In this paper, a review of existing analytical solutions to determine the short-term response of the GHE is presented. The strengths and limitations of t…
Metal matrix composites (MMCs) ensure outstanding application possibilities in many industrial fields; therefore the development of half-industrial and industrial products is extremely important. In our work a MMC pipe was produced by pressure infiltration technique. Near eutectic AlSi12 aluminium alloy was used as ma…
Co thin films were prepared on SrTiO3(100), SrTiO3(110), and SrTiO3(111) single-crystal substrates by ultra-high vacuum molecular beam epitaxy. The film structure and the magnetic properties were investigated. Co epitaxial thin films are obtained on these SrTiO3 substrates at elevated temperatures with different film…
An electrochemical and mechanical modeling approach to simulate formation of corrosion induced cracks in reinforced concrete structures is presented. The electrochemical model allows simulation of the propagation of macro cell corrosion in a homogeneous defect-free concrete-steel system. To simulate cracking a finite…
Inclusions contributing to acicular ferrite nucleation were investigated from a crystallographic point of view to understand the formation mechanism for acicular ferrite microstructure in mild and low alloy steel weld metals.The samples with different oxygen content in Ti–B weld metal were prepared in this study. In t…
A simple, rapid, and reliable HPTLC method has been established for simultaneous determination of Nebivolol and SAmlodipine in pharmaceutical dosage forms. Identification and quantification were performed on silica gel 60 F254 HPTLC plates, prewashed with methanol, with chloroform:toluene:methanol:glacialacetic acid,…
Molecular analyses of nineteen species of planktonic Anabaena strains collected from eutrophic lakes and ponds in Japan were conducted and the phylogenetic relationships compared. Using cultured strains with clearly identified morphological characters, there was no discrepancy between the identification results from t…
Chromatography technology was employed to clarify the mechanism of interaction between multi-wall carbon nanotubes (MWCNT) and proteins. A column (16x100 mm) was packed with purified MWCNT, and various proteins were eluted with phosphate buffered saline (PBS) with and without gradient systems. It was found that albumi…
In this letter, a novel procedure is introduced for the simulation of carbon nanotube (CN) antennas directly in the time domain. This formulation is based on the time-domain electric-field integral equation (TD-EFIE) for thin-wires, including external loads. Appropriate loads have been derived to match the physical re…
Two new polymerizable fluorescent dyes based on naphthalimide derivatives were prepared. For this purpose, acenaphthene as a primary material was brominated and further reacted by various unit processes such as oxidation, imidation and amination in order to obtain polymerizable fluorescent dyes. The UV-vis spectrophot…
Purpose: In this paper the effect of diffusion on platinum coatings deposited on the surface of nickel based superalloy was evaluated. Design/methodology/approach: The platinum coatings with thickness of 3 mm and 7 mm were deposited by electroplating process on Inconel 713 LC Ni-base superalloy. The heat treatment of…
The electrochemical properties of ionic liquids (ILs) make them attractive for possible replacement of inorganic salts in high temperature molten salt electrochemical processing of nuclear fuel. To be a feasible replacement solvent, ILs need to be stable in moderate and high doses of radiation without adverse chemical…
The paper proposes a novel instrument for the eddy current non-destructive testing on conductive materials. The instrument is composed by a smart eddy current probe, based on a Giant Magneto Resistance sensor, and a suitable processing unit. Key features of the proposed instrument are the capability to detect, locate…
By using the soluble salt as the dispersant, a facile synthetic route has been developed to prepare GaN nanoparticle powders on a large scale and in a high yield of 95.8% through the direct nitridation of Ga–Na2SO4 mixture at 700 °C and followed by washing with water. This preparation method is also applicable to some…