L. Bindi2005-10-01American Mineralogist
To study the temperature-dependent structural changes accompanying the phase transformation leadhillite ↔ susannite and to verify the close structural relationships between heated leadhillite and susannite, a leadhillite crystal has been investigated by X-ray single-crystal diffraction methods within the temperature r…
Geological and Geochemical AnalysisHigh-pressure geophysics and materialsCrystal Structures and Properties
N. I. Solin、V. A. Kazantsev、L. D. Fal’kovskaya 等 4 位作者2005-10-01Physics of the Solid State
Variations in the thermopower, electrical resistivity, magnetoresistance, thermal expansion coefficients, and their anisotropy with temperature were detected near room temperature in single crystals of weakly doped lanthanum manganites La 1− x A x MnO 3 ( A = Ca, Sr; x = 0.07–0.125) with orthorhombic structure. The re…
Magnetic and transport properties of perovskites and related materialsRare-earth and actinide compoundsAdvanced Condensed Matter Physics
Lai Chen、Tang Shaoqiu、Yingjun Wang 等 5 位作者2005-10-01Synthesis and Reactivity in Inorganic Metal-Organic and Nano-Metal Chemistry
The present experiment demonstrates a systematic morphosynthesis of calcium phosphate crystals with controlled morphology in reverse micelles solution of CTAB/n‐pentanol/water/cyclohexane. Well‐defined morphologies of calcium phosphate particles, such as nanowires, tablets, brushlike particles, and fiber bundles, can…
Bone Tissue Engineering MaterialsCalcium Carbonate Crystallization and InhibitionClay minerals and soil interactions
Jehuda Greener、Herong Lei、James F. Elman 等 4 位作者2005-10-01Journal of the Society for Information Display
Abstract— Many of the films used in polarizer assemblies in LCDs ( e.g. , triacetyl cellulose or TAC) are produced by a solvent‐casting process, which is known to impart optical anisotropy to the film expressed as finite out‐of‐plane birefringence. This feature of the film could have a significant impact on the optica…
Liquid Crystal Research AdvancementsPolymer Nanocomposites and PropertiesSurface Roughness and Optical Measurements
Г. А. Политова、И. С. Терешина、С.А. Никитин 等 7 位作者2005-10-01Physics of the Solid State
The effect of hydrogenation on the magnetic ordering temperature and magnetostriction of the Tb0.27Dy0.73Fe2 and Tb0.27Dy0.73Co2 compounds with compensated magnetic anisotropy of the rare-earth sublattice was studied. It was established that the incorporation of hydrogen atoms into the crystal lattice of the compounds…
Magnetic properties of thin filmsMagnetic Properties and ApplicationsMagnetic Properties of Alloys
S. L. Abd‐El‐Messieh、Hala F. Naguib2005-10-01Polymer-Plastics Technology and Engineering
A systematic dielectric study over a frequency range of 100 Hz up to 100 k Hz was carried out on some poly(alkyl methacrylate)s: poly(methyl methacrylate) (PMMA), poly(ethyl methacrylate) (PEMA), and poly(butyl methacrylate) (PBMA) blended with polyvinylpyrrolidone (PVP). The compatibility investigation, which was tes…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesPolymer Science and PVC
Anindya Ghosh、S. M. Ishtiaque、R. S. Rengasamy2005-10-01Textile Research Journal
A generalized mathematical model has been developed for predicting the strength of spun yarns produced by ring, rotor, air-jet and open-end friction spinning systems. The model is based on the translation of fiber bundle tenacity into the yarn tenacity and it is applicable to all spun yarns. The model describes the fa…
Mechanical Behavior of CompositesTextile materials and evaluationsStructural Analysis and Optimization
Kyung-Woo Lee2005-10-01Textile Research Journal
The bending moment-curvature relation was derived for generalized elliptical cross-section fibers made of nonlinear material and particular values were found to agree with those already obtained for elliptical cross-section and rectangular cross-section. The bending shape factors, the relation between bending rigidity…
Mechanical Behavior of CompositesTextile materials and evaluationsMechanical Engineering and Vibrations Research
Cevdet Söğütlü2005-10-01Journal of Polytechnic
Bu çalışmada, zımparalanmış ağaç malzeme yüzey pürüzlülüğüne kesiş yönü ve zımpara çeşidinin etkileri araştırılmıştır. Bu maksatla, ülkemizde yetişen akasya (Robinia pseudoacacia L.), armut (Pirus communis L.), kestane (Castanea sativa Mill.), sapsız meşe (Quercus petraea Lieble) ve Toros sediri (Cedrus libani A. Rich…
Textile materials and evaluations
Yu. A. Kotov、A. V. Bagazeyev、I. V. Beketov 等 10 位作者2005-10-01Technical Physics
The properties of NiO nanopowders prepared by electrical explosion of a wire in an oxygen-containing atmosphere are presented. Most of the NiO nanopowders are found to be oxygen-enriched, the excess of oxygen depending mainly on the nickel vapor concentration. The dependences of the powder particle size on the oxygen…
Magnesium Oxide Properties and ApplicationsLaser-Ablation Synthesis of Nanoparticles
Ricardo Galván-Martínez、Graciela García-Caloca、Rubén Durán‐Romero 等 6 位作者2005-10-01Materials and Corrosion
This work compares three electrochemical techniques, linear polarization resistance (LPR), electrochemical impedance spectroscopy (EIS) and electrochemical noise (EN), used in the study of corrosion of X52 steel samples in an environment containing a culture of sulfate reducing bacteria (SRB). The study emphasizes the…
Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsConcrete Corrosion and Durability
Yuan Shi-ping、Jiang Peixue2005-10-01Progress in Natural Science Materials International
The inhmogenmus non-equilibrium molecular dynamics (NEMD) scheme is applied to model phonon heat conduction in thin nickel films. The electronic contribution to the thermal conductivity of the film is deduced from the electrical conductivity through the use of the Wiedemann-Fmnz law. At the average temperature of T= 3…
Carbon Nanotubes in CompositesForce Microscopy Techniques and ApplicationsThermal properties of materials
Debjyoti Ray、A. K. Himanshu、T. P. Sinha2005-10-01Indian Journal of Pure & Applied Physics
The intrinsically conducting polymer (ICP), polyaniline (PANI) is synthesized by chemical oxidative polymerization process with the help of water soluble support polymer poly-vinyl alcohol (PVA). The field dependence of the dielectric response is measured in the frequency range 50 Hz-1 MHz and temperature range 140-31…
Advanced Sensor and Energy Harvesting MaterialsConducting polymers and applicationsAnalytical Chemistry and Sensors
M.J. Pérez-Zurita、Gabriela J. Pérez-Quintana、Alfonso J. Hasblady 等 7 位作者2005-10-01Clays and Clay Minerals
Abstract Of all the known pillared layered clays (PILC), Al-PILC is the most studied. In spite of that, its use on a commercial scale is not yet possible due to the large amount of water required for its synthesis. The aim of the present work was to take advantage of the beneficial effects of ultrasound radiation for…
Layered Double Hydroxides Synthesis and ApplicationsChemical Synthesis and CharacterizationMagnesium Oxide Properties and Applications
Jana Vejpravová、J. Plocek、D. Nižňanský 等 6 位作者2005-10-01IEEE Transactions on Magnetics
Well-defined CoFe/sub 2/O/sub 4/ nanoparticles embedded in an amorphous SiO/sub 2/ matrix have been synthesized by a sol-gel method, characterized and investigated by Mo/spl uml/ssbauer spectroscopy and magnetic properties measurements. The mean particle size increases from 3 to 15nm consistently with the temperature…
Magnetic properties of thin filmsMagnetic Properties and Synthesis of FerritesIron oxide chemistry and applications
Satoshi Sugimoto、K. Haga、Masami Nakata 等 6 位作者2005-10-01IEEE Transactions on Magnetics
xFe/(100-x)(NiZnCu)Fe/sub 2/O/sub 4/(x: wt%) composite films were prepared by the aerosol deposition (AD) method. The as-deposited x=80 film exhibited the maximum relative permeability of /spl mu//sub rmax/"=18 at around 450 MHz. The AD film also showed /spl mu//sub r/"=9 at 3 GHz, which were comparable to the values…
Electromagnetic wave absorption materialsElectromagnetic Compatibility and Noise SuppressionFull-Duplex Wireless Communications
R. Markandeya、S. Nagarjuna、D. S. Sarma2005-10-01Materials Science and Technology
The influence of prior cold work on age hardening behaviour of solution treated (ST) Cu–3Ti–0·1Zr and Cu–4Ti–0·1Zr alloys subjected to cold deformations of 50, 75 and 90% has been investigated by hardness and tensile tests and optical as well as transmission electron microscopy. Hardness of Cu–3Ti–0·1Zr and Cu–4Ti–0·1…
Microstructure and mechanical propertiesAluminum Alloy Microstructure PropertiesMetallurgy and Material Forming
Luca Aldega2005-10-01American Mineralogist
Illite crystals in siliciclastic sediments are heterogeneous assemblages of detrital material coming from various source rocks and, at paleotemperatures >70 °C, of superimposed diagenetic modification in the parent sediment. We distinguished the relative proportions of 2M 1 detrital illite and possible diagenetic 1…
Geological and Geochemical AnalysisSoil and Unsaturated FlowClay minerals and soil interactions
Ayman I. Hawari、Jianwei Chen2005-10-01IEEE Transactions on Nuclear Science
Pebble bed reactors are characterized by multipass fuel systems in which spherical fuel pebbles are circulated through the core until they reach a proposed burnup limit (80000-100000 MWD/MTU). For such reactors, the fuel is assayed on-line to ensure that the burnup limit is not breached. We considered assaying the fue…
Nuclear reactor physics and engineeringNuclear Materials and PropertiesNuclear Physics and Applications
Th. Speliotis、D. Niarchos、Polycarpos Falaras 等 5 位作者2005-10-01IEEE Transactions on Magnetics
Magnetic NdFeB thick films were prepared by screen printing an NdFeB-based ink. The films are isotropic and the thickness varied from 30 /spl mu/m to 1 mm. The printing parameters were optimized with respect to the mechanical and magnetic properties of the films. After curing at 120/spl deg/C good adhesive nonporous f…
Magnetic properties of thin filmsMagnetic Properties and ApplicationsMagnetic Properties of Alloys