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 250315 / 307428 页 · 当前展示 5,006,281–5,006,300 / 6,148,556 条匹配结果 · 摘要仅作预览

New nickel-uranium-arsenic mineral species from the oxidation zone of the Belorechenskoye deposit, Northern Caucasus, Russia: I. Rauchite, Ni(UO2)2(AsO4)2·10H2O, a member of the autunite group

Igor V. Pekov、Viktor V. Levitskiy、Sergey V. Krivovichev 等 7 位作者2012-04-03European Journal of Mineralogy

Rauchite, ideally Ni(UO 2 ) 2 (AsO 4 ) 2 ·10H 2 O (IMA no. 2010-037), a new arsenate mineral species of the autunite group, was found at the Belorechenskoye deposit, Adygea Republic, Northern Caucasus, Russia. It is a supergene mineral associated with dymkovite, annabergite and goethite in cavities of a dolomite vein…

Crystal Structures and PropertiesRadioactive element chemistry and processingNuclear materials and radiation effects

X‐ray scattering study on the damage in fibers used in soft body armor after folding

Haruki Kobayashi、Walter G. McDonough、Joy P. Dunkers 等 9 位作者2012-04-03Polymer Composites

Abstract The goals of the research effort described in this article are to develop a framework to evaluate improvements in next‐generation fibers used in soft body armor and to anticipate long‐term performance and potential fiber deterioration. This effort to date has included the effect of folding on the fibers and e…

Advanced ceramic materials synthesisGlass properties and applicationsAerogels and thermal insulation

SYNTHESIS AND CHARACTERIZATION OF NICKEL DOPED CdS NANOPARTICLES

B. Srınıvasa Rao、V. Rajagopal Reddy、B. Rajesh Kumar 等 4 位作者2012-04-03International Journal of Nanoscience

In the present work, conventional chemical co-precipitation method was employed for the preparation of Nickel (2, 4, 6, 8 and 10 at.% of Ni ) doped CdS nanoparticles. The crystallite size and lattice parameters for each sample are determined from X-ray diffraction (XRD) analysis. From XRD patterns the broadening of th…

Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsCopper-based nanomaterials and applications

Some spin and spin‐free aspects of coulomb correlation in molecules

A. V. Luzanov2012-04-03International Journal of Quantum Chemistry

Abstract A spin component analysis of the cumulant (irreducible) density matrices is provided. In particular, the spin‐up spin‐down cumulant density matrix, π , is considered as the most general definition of the Coulomb‐hole density matrix. The local atomic cumulants produced from π , turn out to be the most importan…

Advanced Chemical Physics StudiesZeolite Catalysis and SynthesisMachine Learning in Materials Science

THE FATIGUE AND FRACTURE BEHAVIOR OF MICRON-RUBBER AND NANO-SILICA PARTICLES MODIFIED EPOXY POLYMER

C. M. Manjunatha、N. Jagannathan、K. Padmalatha 等 5 位作者2012-04-03International Journal of Nanoscience

A thermosetting epoxy polymer was hybrid-modified by incorporating 9 wt.% of CTBN rubber microparticles and 10 wt.% of silica nanoparticles. The resin was poured into steel mould and cured to produce bulk epoxy polymer sheets from which fatigue test specimens were machined. The total fatigue life of the hybrid-modifie…

Mechanical Behavior of CompositesPolymer Nanocomposites and PropertiesEpoxy Resin Curing Processes

Oxalate Release and Formation during Alkaline Pulping

Hailong Li、Xin‐Sheng Chai、Nikolai DeMartini2012-04-03Journal of Wood Chemistry and Technology

In this work, we investigated the release and formation of oxalate during alkaline pulping of southern pine and acacia. The results showed that a significant amount of oxalate is formed during alkaline pulping in addition to the oxalate released from the wood. Acacia was found to have more oxalate in the wood and it a…

Wood Treatment and PropertiesAdvanced Cellulose Research StudiesLignin and Wood Chemistry

Application of double patterning technology to fabricate optical elements: Process simulation, fabrication, and measurement

S. Babin、G. Glushenko、Thomas Weber 等 6 位作者2012-04-03Journal of Vacuum Science & Technology B Nanotechnology and Microelectronics Materials Processing Measurement and Phenomena

Double patterning is an important technique for the improvement of spatial resolution in fabricated micro and nanostructures. In this paper, we investigated and applied the double patterning technique to fabricate diffractive optical elements. Simulations of multiple dry etch and film deposition steps were performed t…

Advancements in Photolithography TechniquesOptical Coatings and GratingsNanofabrication and Lithography Techniques

Terahertz Surface Plasmon Polaritons on a Periodically Structured Metal Film with High Confinement and Low Loss

X. F. Zhang、Lin Shen、Jiawei Wu 等 4 位作者2012-04-03Journal of Electromagnetic Waves and Applications

Spoof surface plasmon polaritons (SPPs) on a real metal film with periodic cut-through slits are investigated theoretically at terahertz frequencies. For both symmetric and antisymmetric modes of spoof SPPs on the film, the propagation length is severely limited by the absorbing loss in the metal when the fields are h…

Plasmonic and Surface Plasmon ResearchPhotonic Crystals and ApplicationsOptical Coatings and Gratings

Tunable surface plasmon polaritons in metal-strip waveguides with magnetized semiconductor substrates in Voigt configuration

Gishamol Mathew、Vincent Mathew2012-04-03Semiconductor Science and Technology

The properties of surface plasmon polaritons (SPPs) in a magnetically tunable strip waveguide geometry comprising of a metal film of finite width deposited on a magnetized semiconductor and covered by an isotropic dielectric material were studied in Voigt configuration. The method of lines was used to compute the disp…

Plasmonic and Surface Plasmon ResearchPhotonic Crystals and ApplicationsOptical Coatings and Gratings

Nitrogen mineralisation from amended and unamended intensively managed tropical andisols and inceptisols

Ladiyani Retno Widowati、Steven Sleutel、Diah Setyorini 等 5 位作者2012-04-03Soil Research

Intensive vegetable production systems throughout South East Asia are characterised by large nutrient inputs and low nitrogen (N) use efficiencies. In Indonesia, intensive vegetable production is concentrated on volcanic highland soils starting from an altitude of around 700 m above sea level. We measured potential N…

Soil Carbon and Nitrogen DynamicsSoil and Unsaturated FlowClay minerals and soil interactions

DFT study of structure and vibrational spectra of ceramide 3: comparison to experimental data

Soni Mishra、Poonam Tandon2012-04-03Molecular Simulation

The Fourier transform Raman and infrared (IR) spectra of the Ceramide 3 (CER3) have been recorded in the regions 200–3500 cm− 1 and 680–4000 cm− 1, respectively. We have calculated the equilibrium geometry, harmonic vibrational wavenumbers, electrostatic potential surfaces, absolute Raman scattering activities and IR…

Porphyrin and Phthalocyanine ChemistryPhotochemistry and Electron Transfer StudiesFree Radicals and Antioxidants

A combinatorial approach for directing the amount of fibronectin fibrils assembled by cells that uses surfaces derivatized with mixtures of fibronectin and cell binding domains

Pradnya P. Kshatriya、Stella Karuri、Chun-Yi Chiang 等 4 位作者2012-04-03Biotechnology Progress

Fibrillar fibronectin (FN) has the crucial role of attracting and attaching cells as well as molecules that mediate tissue repair during wound healing. A previous study demonstrated higher extracellular staining of FN fibrils in cells cultured on surfaces tethered with an equimolar mixture of a FN binding domain and F…

Cellular Mechanics and InteractionsCell Adhesion Molecules ResearchSilk-based biomaterials and applications

Spatial angle dependent lasing from a dye-doped two-dimensional hexagonal photonic crystal made of holographic polymer-dispersed liquid crystals

Dan Luo、Haitao Dai、Hilmi Volkan Demir 等 6 位作者2012-04-03Optics Express

The observation of spatial angle dependent lasing from a dye-doped two-dimensional photonic crystal (2D PC) holographic polymer dispersed liquid crystals made of hexagonal lattice structure is reported. With the increasing output angle of the laser beam in the plane perpendicular to the 2D PC, the lasing wavelength is…

Photonic and Optical DevicesLiquid Crystal Research AdvancementsPhotonic Crystals and Applications

Crystallographic, UV spectroscopic and computational studies of the inclusion complex of α-cyclodextrin with p-aminobenzoic acid

Kossay Elasaad、Bernadette Norberg、Johan Wouters2012-04-03Supramolecular chemistry

Crystal structure of the cyclomaltohexaose (α-cyclodextrin, α-CD) inclusion complex with p-aminobenzoic acid (pABA) has been determined by X-ray diffraction. The host:guest stoichiometry is 1:1. The pABA molecule is included in the cavity with its axis coincident with the axis of α-CD; the benzoic group is inserted in…

Drug Solubulity and Delivery SystemsSurfactants and Colloidal SystemsCrystallization and Solubility Studies

Application of Cu-Al-Mn superelastic alloy bars as reinforcement elements in concrete beams

Kshitij C. Shrestha、Yoshikazu Araki、Takuya Nagae 等 9 位作者2012-04-03Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

Experimental works are done to assess the seismic behavior of concrete beams reinforced with superelastic alloy (SEA) bars. Applicability of newly developed Cu-Al-Mn SEA bars, characterized by large recovery strain, low material cost, and high machinability, have been proposed as partial replacements for conventional…

Structural Behavior of Reinforced ConcreteShape Memory Alloy TransformationsConcrete Corrosion and Durability

Dynamics of diffusivity and pressure drop in flow‐through and parallel‐flow bioreactors during tissue regeneration

Jagdeep T. Podichetty、Dhananjay V. Dhane、Sundararajan V. Madihally2012-04-03Biotechnology Progress

In this study, transport characteristics in flow-through and parallel-flow bioreactors used in tissue engineering were simulated using computational fluid dynamics. To study nutrient distribution and consumption by smooth muscle cells colonizing the 100 mm diameter and 2-mm thick scaffold, effective diffusivity of glu…

Mesenchymal stem cell researchElectrospun Nanofibers in Biomedical Applications3D Printing in Biomedical Research

An amperometric biosensor for choline determination prepared from choline oxidase immobilized in polypyrrole-polyvinylsulfonate film

Merve Özdemir、Fatma Arslan、Halit Arslan2012-04-03Artificial Cells Blood Substitutes and Biotechnology

In this paper, a novel amperometric choline biosensor with immobilization of choline oxidase on electrochemically polymerized polypyrrole-polyvinylsulphonate (PPy-PVS) film has been accomplished via the entrapment technique. The effects of pH and temperature were investigated and optimum parameters were found to be 9.…

Electrochemical sensors and biosensorsConducting polymers and applicationsAnalytical Chemistry and Sensors

Solubilization of entecavir by povidone to overcome content uniformity challenges for low-dose tablet formulations

Divyakant Desai、Danping Li、Abizer I Harianawala 等 6 位作者2012-04-03Pharmaceutical Development and Technology

Development of 0.1, 0.5, and 1.0 mg entecavir tablet formulations for the treatment of hepatitis B virus was challenging for content uniformity. Entecavir with pKa of 2.8 and 9.8 does not have sufficient solubility in acidic or alkaline medium or in common pharmaceutical solvents such as ethanol to dissolve the drug i…

Drug Solubulity and Delivery SystemsHIV/AIDS drug development and treatmentCrystallization and Solubility Studies

Polarization-reduced quaternary InAlGaN/GaN HFET and MISHFET devices

N. Ketteniss、Abdelrahman M. Askar、B. Reuters 等 7 位作者2012-04-03Semiconductor Science and Technology

The reduction of the polarization charge in a GaN-based single-heterostructure field-effect transistor (HFET) by polarization engineering is proposed as a method for achieving normally off operation. The concept minimizes the dependence of the threshold voltage on the barrier layer thickness. Therefore, thicker gate d…

ZnO doping and propertiesGaN-based semiconductor devices and materialsGa2O3 and related materials

AgGaSe2thin films grown by chemical close-spaced vapor transport for photovoltaic applications: structural, compositional and optical properties

C. Merschjann、Mathias Mews、Tayfun Mete 等 11 位作者2012-04-03Journal of Physics Condensed Matter

Thin films of chalcopyrite AgGaSe(2) have been successfully grown on glass and glass/molybdenum substrates using the technique of chemical close-spaced vapor transport. The high crystallinity of the samples is confirmed by grazing-incidence x-ray diffraction, scanning and transmission electron microscopy, and optical…

Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsCopper-based nanomaterials and applications