Materials Literature

文献浏览

按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。

清除
第 214217 / 228607 页 · 当前展示 4,284,321–4,284,340 / 4,572,133 条匹配结果 · 摘要仅作预览

Understanding the magnetic susceptibility measurements by using an analytical scale

M. E. Cano、Teodoro Córdova–Fraga、M. Sosa 等 5 位作者2008-02-19European Journal of Physics

A description of the measurement procedure, related theory and experimental data analysis of the magnetic susceptibility of materials is given. A short review of previous papers in the line of this subject is presented. This work covers the whole experimental process, in detail, and presents a pragmatic approach for p…

Magnetic Properties and Applications

Valley polarization effects on localization in graphene Landau levels

A. L. C. Pereira、P. A. Schulz2008-02-19Physical Review B

The effects of disorder and valley polarization in graphene are investigated in the quantum Hall regime. We find anomalous localization properties for the lowest Landau level (LL), where disorder can induce wave function delocalization (instead of localization), both for white-noise and Gaussian-correlated disorders.…

Graphene research and applicationsQuantum and electron transport phenomenaAdvancements in Semiconductor Devices and Circuit Design

Structural studies on cationic poly{9,9-bis[6-(N,N,N-trimethylammonium)alkyl]fluorene-co-1,4-phenylene} iodides in aqueous solutions in the presence of the non-ionic surfactant pentaethyleneglycol monododecyl ether (C12E5)

Hugh D. Burrows、Matti Knaapila、Andrew P. Monkman 等 9 位作者2008-02-19Journal of Physics Condensed Matter

Two cationic conjugated polyelectrolyte poly{9,9- bis [6-( N , N , N -trimethylammonium)alkyl]fluorene- co -1,4-phenylene} iodides in aqueous solution in the presence of the non-ionic surfactant pentaethyleneglycol monododecyl ether (C 12 E 5 ) were studied using optical absorption and fluorescence, NMR, and small-ang…

Surfactants and Colloidal SystemsLuminescence and Fluorescent MaterialsDendrimers and Hyperbranched Polymers

Minimally resolution biased electron-density maps

Angela Altomare、Corrado Cuocci、Carmelo Giacovazzo 等 6 位作者2008-02-19Acta Crystallographica Section A Foundations of Crystallography

Electron-density maps are calculated by Fourier syntheses with coefficients based on structure factors. Diffraction experiments provide intensities up to a limited resolution; as a consequence, the Fourier syntheses always show series-termination errors. The worse the resolution, the less accurate is the Fourier repre…

Nuclear Physics and ApplicationsElectron and X-Ray Spectroscopy TechniquesX-ray Diffraction in Crystallography

Flux dependence of cluster formation in neutron-irradiated weld material

F. Bergner、A. Ulbricht、Hieronymus Hein 等 4 位作者2008-02-19Journal of Physics Condensed Matter

The effect of neutron flux on the formation of irradiation-induced clusters in reactor pressure vessel (RPV) steels is an unresolved issue. Small-angle neutron scattering was measured for a neutron-irradiated RPV weld material containing 0.22 wt% impurity Cu. The experiment was focused on the influence of neutron flux…

Fusion materials and technologiesHydrogen embrittlement and corrosion behaviors in metalsNuclear Materials and Properties

Ferroic classifications extended to ferrotoroidic crystals

Д. Б. Литвин2008-02-19Acta Crystallographica Section A Foundations of Crystallography

Aizu's characterization of the 773 species of phase transitions by magnetization, polarization and strain is extended to include characterization by the recently observed toroidal moment. The resulting distinction quadruplet characterization is then used to classify the species into sub-ensembles, extending Schmid's c…

Magnetic properties of thin filmsMultiferroics and related materialsMagnetic Properties and Applications

Study of the correlation between the temperature dependence of viscosity and excess quantities in glycerol

Salvatore Magazù、F. Migliardo2008-02-19Journal of Physics Condensed Matter

The aim of the present paper is to investigate the behaviour of the kinematic viscosity, mean-square displacement and free volume of glycerol in order to theoretically and experimentally evaluate the fragility degree. Starting from the dependence of viscosity on temperature, the behaviour of the mean-square displaceme…

Phase Equilibria and ThermodynamicsMaterial Dynamics and PropertiesRheology and Fluid Dynamics Studies

Assembly of multilayer PSS/PAH membrane on coherent alginate/PLO microcapsule for long‐term graft transplantation

Andy Leung、Matt Trau、Lars K. Nielsen2008-02-19Journal of Biomedical Materials Research Part A

Conventional alginate/poly-L-ornithine (AP) membranes used to immunoisolate foreign tissue transplants fail in long-term transplantations of immortal cell lines. We have developed a novel layer-by-layer (LbL) membrane using polystyrene sulfonate and polyallylamine hydrochloride (PSS/PAH) on top of the coherent AP memb…

Membrane Separation TechnologiesElectrospun Nanofibers in Biomedical ApplicationsPolymer Surface Interaction Studies

Dimeric Complexes of a Tridentate Schiff Base Ligand – Crystal Structure of a CuII Complex with Uncommon μ2‐Nsulfonamido Bridges and Ferromagnetic Behaviour

Jesús Sanmartín‐Matalobos、Fernando Novio、Ana M. García‐Deibe 等 6 位作者2008-02-19European Journal of Inorganic Chemistry

Abstract N ‐[2‐(Tosylamino)benzylidene]‐2‐[(tosylamino)methyl]aniline(H 2 L) has afforded M II 2 (L) 2 · x MeCN · y H 2 O complexes (M = Ni, Pd, Cu, Zn and Cd; x = 0 or 2; y = 0, 4, 6 or 8). Physicochemical characterisation data are indicative of the dinuclear nature of the complexes obtained, where the potential N,N,…

Metal-Organic Frameworks: Synthesis and ApplicationsMetal complexes synthesis and propertiesMagnetism in coordination complexes

The effect of oxygen disorder on magnetic properties of PrBaCo2O5.50layered cobaltite

Carlos Frontera、J. L. Garcı́a-Muñoz、Óscar Castaño 等 5 位作者2008-02-19Journal of Physics Condensed Matter

Oxygen vacancy disorder is very common in RBaCo 2 O 5+δ cobaltites with large rare earths (R). This disorder affects the magnetic interactions and, obviously, the magnetic properties of these compounds. In this work we report the preparation and characterization of a well ordered PrBaCo 2 O 5.50 sample that has allowe…

Magnetic and transport properties of perovskites and related materialsAdvanced Condensed Matter PhysicsMagnetic Properties of Alloys

Rearrangement of twin variants in ferromagnetic shape memory alloy–polyurethane composites studied by stroboscopic neutron diffraction

J. Feuchtwanger、P. Lázpita、Nicolas Vidal 等 10 位作者2008-02-19Journal of Physics Condensed Matter

Rearrangement of twin variants in ferromagnetic shape memory alloy–polyurethane composites studied by stroboscopic neutron diffraction, Feuchtwanger, J, Lázpita, P, Vidal, N, Barandiaran, J M, Gutiérrez, J, Hansen, T, Peel, M, Mondelli, C, O’Handley, R C, Allen, S M

Shape Memory Alloy Transformations

Synthesis, self‐assembly in water, and cytotoxicity of MPEG‐block‐PLLA/DX conjugates

Zhigang Xie、Tiancheng Lu、Xuesi Chen 等 5 位作者2008-02-19Journal of Biomedical Materials Research Part A

Docetaxel (DX) is one of the most effective antineoplastic drugs. Its current clinical administration is limited because of its hydrophobicity and serious side effects. A polymer/DX conjugate is designed and successfully prepared to solve these problems. It is monomethoxy-poly(ethylene glycol)-block-poly(L-lactide)/DX…

Nanoparticle-Based Drug DeliveryAdvanced Polymer Synthesis and Characterizationbiodegradable polymer synthesis and properties

Magnetism of ZnO nanoparticles doped with 3d cations prepared by a solvothermal method

Jonathan Alaria、M. Venkatesan、J. M. D. Coey2008-02-19Journal of Applied Physics

A systematic procedure for producing ZnO nanoparticles by heating ethanol and salt under pressure has been used to make pure ZnO and ZnO doped with cations of all 3d metals from Sc to Cu. When the ZnO is uniformly doped with the 3d cations, the nanoparticles show no ferromagnetism down to 4.2K. However, when the precu…

ZnO doping and propertiesCopper-based nanomaterials and applicationsElectronic and Structural Properties of Oxides

Simultaneous birefringence, small- and wide-angle X-ray scattering to detect precursors and characterize morphology development during flow-induced crystallization of polymers

Lucia Fernandez-Ballester、Tim Gough、Florian Meneau 等 7 位作者2008-02-19Journal of Synchrotron Radiation

An experimental configuration that combines the powerful capabilities of a short-term shearing apparatus with simultaneous optical and X-ray scattering techniques is demonstrated, connecting the earliest events that occur during shear-induced crystallization of a polymer melt with the subsequent kinetics and morpholog…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesRheology and Fluid Dynamics Studies

Host–guest coupling in semiconducting Ba8Zn8Ge38

Mogens Christensen、Bo B. Iversen2008-02-19Journal of Physics Condensed Matter

Two samples of the type I clathrate Ba 8 Zn 8 Ge 38 have been prepared by a self-flux method with different cooling rates. Transport properties have been measured for a large single crystal of Ba 8 Zn 8 Ge 38 from the slow cooled batch, and they reveal the sample to be semiconducting. A high Seebeck coefficient of −17…

Advanced Thermoelectric Materials and DevicesThermal properties of materialsThermal Expansion and Ionic Conductivity

Laboratory Tests on Mercury Emission Monitoring with Resonating Gold-coated Silicon Cantilevers

Jarosław Drelich、C.L. White、Zhenghe Xu2008-02-19Environmental Science & Technology

To measure extremely low concentrations of mercury vapor in gases as encountered in flue gases of coal-fired power plants, accurate and reliable online and/or portable mercury detection systems are needed. As discussed in this communication, resonating silicon-based cantilevers coated with thin films of gold change th…

Diamond and Carbon-based Materials ResearchMechanical and Optical ResonatorsIon-surface interactions and analysis

Low-symmetry phases at the tilt boundary of thePb(Zr1−xTix)O3solid solution

G. Fraysse、Julien Haines、V. Bornand 等 7 位作者2008-02-19Physical Review B

The tilt boundary that separates the well-known rhombohedral phases $R3m$ and $R3c$ of the $\mathrm{Pb}({\mathrm{Zr}}_{1\ensuremath{-}x}{\mathrm{Ti}}_{x}){\mathrm{O}}_{3}$ solid solution was investigated by means of time-of-flight neutron powder diffraction, dielectric measurements, and resonance Raman spectroscopy. C…

Ferroelectric and Piezoelectric MaterialsMultiferroics and related materialsMicrowave Dielectric Ceramics Synthesis

A theoretical study for nanoparticle partitioning in the lamellae of diblock copolymers

Jiezhu Jin、Jianzhong Wu2008-02-19The Journal of Chemical Physics

Morphology control is important for practical applications of composite materials that consist of functional polymers and nanoparticles. Toward that end, block copolymers provide useful templates to arrange nanoparticles in the scaffold of self-organized polymer microdomains. This paper reports theoretical predictions…

Material Dynamics and PropertiesSurfactants and Colloidal SystemsBlock Copolymer Self-Assembly

Structure and properties of tailor‐made poly(ethyl acrylate)/clay nanocomposites prepared by in situ atom transfer radical polymerization

Haimanti Datta、Nikhil K. Singha、Anil K. Bhowmick2008-02-19Journal of Applied Polymer Science

Abstract An in‐depth study was carried out on the structure and properties of a series of poly(ethyl acrylate)/clay nanocomposites prepared by in situ atom transfer radical polymerization (PNCIs) with well‐defined molecular weights and narrow molecular weight distributions. Wide‐angle X‐ray diffraction and transmissio…

Advanced Polymer Synthesis and CharacterizationPolymer Nanocomposites and PropertiesPolymer Nanocomposite Synthesis and Irradiation