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Mostrando ítems 121-130 de 633
Artículo
Dependence of exchange anisotropy and coercivity on the Fe–oxide structure in oxygen-passivated Fe nanoparticles
(American Institute of Physics, 1999)
Ultrafine Fe particles have been prepared by the inert gas condensation method and subsequently oxygen passivated. The as-obtained particles consist in an Fe core surrounded by an amorphous Fe-oxide surface layer. The ...
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Artículo
Shotgun metagenomic sequencing in culture negative microbial keratitis
(Wichtig Publishing Srl, 2023-07)
Purpose: To evaluate the microbiota of culture negative Corneal Impression Membrane (CIM) microbial keratitis samples with the use of shotgun metagenomics analysis. Methods: DNA of microbial keratitis samples were collected ...
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Parallel Cellular Automata-based Simulation of Laser Dynamics using Dynamic Load Balancing
(InderScience Publishers, 2008)
We present an analysis of the feasibility of executing a parallel bioinspired model of laser dynamics, based on cellular automata (CA), on the usual target platform of this kind of applications: a heterogeneous non-dedicated ...
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Influence of Mn content on the microstructure and hyperfine interaction parameters of amorphous and nanocrystalline Hitperm-type FeCoMnNbB alloys.
(Russian Academy of Sciences, 2008)
Effects of Mn addition on the devitrification kinetics, microstructure and hyperfine inter- action parameters of FeCoMnNbB alloys were investigated. As-cast and nanocrystalline samples were studied by different experimental ...
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Monolithic supports based on biomorphic SiC for the catalytic combustion of hydrogen
(Royal Society of Chemistry, 2016)
Catalytic hydrogen combustion was studied with H2/air mixtures in conditions that simulate the H2 concentration of the exhaust gases from fuel cells (3–4% v/v H2 in air). Pt-impregnated monoliths based on porous biomorphic ...
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Glass-forming ability and crystallization behavior of Co62−xFexNb6Zr2B30Co62−xFexNb6Zr2B30 (x=0,16)(x=0,16) amorphous alloys with large supercooled liquid region.
(AIP Publishing, 2002)
The kinetics of the glass transition and the crystallization process of Co 62 2 x Fe x Nb 6 Zr 2 B 30 ( x 5 0,16) amorphous alloys with large supercooled liquid region was investigated by ...
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Supersaturated Solid Solution Obtained by Mechanical Alloying of 75% Fe, 20% Ge and 5% Nb Mixture at Different Milling Intensities
(Elsevier, 2009)
Mechanical alloying process of Fe75Ge20Nb5 composition has been studied at different milling frequencies from initial pure powder mixture to the development of a single bcc phase (supersaturated solid solution). As an ...
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Uso de la espectroscopía Raman en la determinación de fases en Y-PSZ monocristalino
(1991)
Se ha estudiado la estabilidad de la fase tetragonal en monocristales de Zr02 parcialmente estabilizados con 3,4; 4,7 y 6,3% mol de Y2O3 mediante espectroscopia Raman, tratados térmicamente a 1.600ºC hasta 1.000 horas. ...
Artículo
Structure of 5,5-dimethyl-2-(4-nitrophenylaminomethylene)-1,3- cyclohexanedione
(International Union of Crystallography, 1991)
CIsHI6N204, triclinic, P1, a = 12.719 (3), b= 7.485 (2), c= 7.728 (2) A, a =93"18 (2), fl = 100-40 (2), 3' = 99-24 (2) °, V = 711-5 (3) •3, Z = 2, Dm = 1.35, Dx = 1.34 Mg m -3, A(Mo Ka) = 0.7107/~, /.+ = 0"092 mm-~, ...