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 207598 / 224318 页 · 当前展示 4,151,941–4,151,960 / 4,486,344 条匹配结果 · 摘要仅作预览

Intrinsic Coupling between Current and Domain Wall Motion in (Ga,Mn)As

Kjetil M. D Hals、Anh Kiet Nguyen、Arne Brataas2009-06-27arXiv

We consider current-induced domain wall motion and, the reciprocal process, moving domain wall-induced current. The associated Onsager coefficients are expressed in terms of scattering matrices. Uncommonly, in (Ga,Mn)As, the effective Gilbert damping coefficient $α_w$ and the effective out-of-plane spin transfer torqu…

Mesoscale and Nanoscale PhysicsMaterials Science

Mechanism of degradation of stabilized corrosion‐resistant steel during the welding cycle

Eva Schmidová、Pavel Švanda、David L. Vesely 等 4 位作者2009-06-26Anti-Corrosion Methods and Materials

Purpose The purpose of this paper is to clarify the destabilisation mechanism that occurs with two types of ferritic corrosion‐resistant steel during the welding cycle. Design/methodology/approach A series of experimental weld joints was made to verify the actual response of non‐stabilised corrosion‐resistant steel, a…

Microstructure and Mechanical Properties of SteelsHigh Temperature Alloys and CreepMaterial Properties and Failure Mechanisms

Purification, crystallization and preliminary X-ray diffraction analysis of the FeoB G domain fromMethanococcus jannaschii

Stefan Köster、Werner Kühlbrandt、Özkan Yıldız2009-06-26Acta Crystallographica Section F Structural Biology and Crystallization Communications

The transmembrane protein FeoB plays a key role in ferrous iron acquisition in prokaryotes. The N-terminal domain of FeoB from Methanococcus jannaschii was overproduced, purified to homogeneity and crystallized in the presence of GTP and magnesium. The native protein crystallized in a tetragonal space group and the cr…

Mass Spectrometry Techniques and ApplicationsEnzyme Structure and FunctionPlant Micronutrient Interactions and Effects

Yellowing tendency of ozonated cotton fabric and ways to prevent this undesirable side effect

Seher Perinçek、M. İbrahim Bahtiyari、Kerim Duran 等 4 位作者2009-06-26Journal of the Textile Institute

This paper provides a general framework for studying the yellowing tendency of ozonated cotton fabric. Yellowing tendency of ozonated cotton fabric and ways to prevent this situation was examined extensively. For this purpose, five different treatments (hot/cold rinsing, washing, reductive washing, catalase treatment)…

Natural Fiber Reinforced CompositesDyeing and Modifying Textile FibersTextile materials and evaluations

New Reclaiming Process of Thermoset Polyurethane Foam and Blending with Polyamide-12 and Thermoplastic Polyurethane

Laura Berasain Gonella、Ademir J. Zattera、Mára Zeni 等 5 位作者2009-06-26Journal of Elastomers & Plastics

A new method to reclaim thermoset polyurethane (PU) foam by thermo-mechanical degradation using a batch Drais mixer was investigated, and the performance of reclaimed PU in blends with polyamide-12 (PA-12) or thermoplastic polyurethane (TPU) was studied. The reclamation method used disrupts the crosslinked structure o…

biodegradable polymer synthesis and propertiesPolymer composites and self-healingCarbon dioxide utilization in catalysis

Emission spectrum and spectral diffusion of a single CdSe/ZnS nanocrystal measured by photon-correlation Fourier spectroscopy

Laurent Coolen、Piernicola Spinicelli、Jean‐Pierre Hermier2009-06-26Journal of the Optical Society of America B

We describe a detailed photon correlation Fourier spectroscopy (PCFS) study of a single CdSe/ZnS nanocrystal at 10 K. PCFS provides the temporal and spectral resolution that is necessary for such a fast spectrally diffusing emitter. In the emitter spectrum, we distinguish a main 6 μeV zero-phonon line, the one- and tw…

Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsSpectroscopy and Quantum Chemical Studies

Thermal, Chemical, and Morphological Characterization of Microcellular Polyurethane Elastomers

Marcos F. M. Pacheco、Otávio Bianchi、Rudinei Fiório 等 7 位作者2009-06-26Journal of Elastomers & Plastics

In this study, three different microcellular polyurethane elastomers (MPUE) based on 4,4'-diphenylmethane diisocyanate with different rigid segment contents are prepared (Formulations 1, 2, and 3 with 32, 35, and 42% of rigid segment content, respectively). The MPUE are obtained through a two-step method using a prepo…

Electrospun Nanofibers in Biomedical ApplicationsPolymer composites and self-healingPolymer Foaming and Composites

Effect of electron beam irradiation on mechanical and thermal properties of waste polyamide copolymer blended with nitrile‐butadiene rubber

Khaled F. El‐Nemr、Medhat M. Hassan、Magdy A. Ali2009-06-26Polymers for Advanced Technologies

Abstract In the present study, the effect of electron beam irradiation on the morphological, thermal, and mechanical properties of waste polyamide copolymer (WPA‐66/6) blended with different contents of acrylonitrile butadiene rubber (NBR) were studied. The prepared blends were subjected to irradiation doses up to 150…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesPolymer Nanocomposite Synthesis and Irradiation

Weight optimisation of a salient pole synchronous generator by a new genetic algorithm validated by finite element analysis

M. Emre Celebi2009-06-26IET Electric Power Applications

In this study, a new approach for genetic algorithm (GA) is proposed and compared with conventional GA (CGA) in the weight optimisation of a 2-MVA salient pole synchronous machine. The main differences between the two algorithms are that, in the newly proposed method, individuals are paired and crossed over based on t…

Electric Motor Design and AnalysisMagnetic Properties and ApplicationsInduction Heating and Inverter Technology

Dipole of edge misfit dislocations and critical radius conditions for buried strained cylindrical inhomogeneity

Qihong Fang、Y.W. Liu、P.H. Wen2009-06-26The Philosophical Magazine A Journal of Theoretical Experimental and Applied Physics

A theoretical model is proposed for elastic stress relaxation of a buried strained cylindrical inhomogeneity, which assumes the edge misfit dislocation dipole formation in the soft matrix at some distance from the interface. The critical radius of the inhomogeneity for the formation of the edge misfit dislocation dipo…

Microstructure and mechanical propertiesNumerical methods in engineeringComposite Material Mechanics

Electron microscopy of octacalcium phosphate in the dental calculus

M. Kakei、T. Sakae、Masayoshi Yoshikawa2009-06-26Journal of Electron Microscopy

The purpose of this study was to morphologically demonstrate the presence of octacalcium phosphate in the dental calculus by judging from the crystal lattice image and its rapid transformation into apatite crystal, as part of our serial studies on biomineral products. We also aimed to confirm whether the physical prop…

Bone Tissue Engineering MaterialsEndodontics and Root Canal TreatmentsCalcium Carbonate Crystallization and Inhibition

Adsorption and diffusion of Au atoms on the (001) surface of Ti, Zr, Hf, V, Nb, Ta, and Mo carbides

Elizabeth Flórez、Francesc Viñes、José A. Rodríguez 等 4 位作者2009-06-26The Journal of Chemical Physics

The adsorption of atomic Au on the (001) surface of TiC, ZrC, HfC, VC, NbC, TaC, and delta-MoC and the mechanism of diffusion of this adatom through the surface have been studied in terms of a periodic density functional theory based approach. In all the cases, the Au adsorption energies are in the range of 1.90-2.35…

Catalytic Processes in Materials ScienceMetal and Thin Film MechanicsAdvanced materials and composites

Polymer-conjugated guanidine is a potentially useful anti-tumor agent

Holmberg2009-06-26International Journal of Oncology

Guanidine compounds have important biochemical properties. Aminoguanidine, as an example, is an anti-oxidant, a nitric oxide synthase inhibitor (NOS) which prevents nitric oxide formation, and an inhibitor of advanced glycosylation end products (AGEs). As an anti-oxidant, aminoguanidine may affect the formation of ath…

Synthesis and properties of polymersEnzyme function and inhibitionSynthesis and Biological Evaluation

Surface Modification of Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) Membrane by Combining Surface Aminolysis Treatment with Collagen Immobilization

Lingyun Wang、Yingjun Wang、Derong Cao2009-06-26Journal of Macromolecular Science Part A

Amino groups were introduced onto a poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) surface by applying 1,6-hexanediamine treatment. The effects of aminolysis time and 1,6-hexanediamine concentration on hydrophilicity of the treated PHBV were investigated using contact angle measurement. The occurrence of the amin…

biodegradable polymer synthesis and propertiesElectrospun Nanofibers in Biomedical ApplicationsPolymer Surface Interaction Studies

Investigation of the Crystallization Kinetics of Dextrose Monohydrate Using In Situ Particle Size and Supersaturation Monitoring

Abhay Markande、Amale Nezzal、John J. Fitzpatrick 等 4 位作者2009-06-26Particulate Science And Technology

In this work, a seeded batch cooling crystallizer was used to study dextrose monohydrate crystallization using in situ techniques. Experiments were conducted to investigate the influence of cooling profile (natural, linear, and controlled cooling) and seed mass on dextrose monohydrate crystallization. Two in situ tech…

Crystallization and Solubility StudiesFood Chemistry and Fat AnalysisFreezing and Crystallization Processes

The corrosion of silver in indoor conditions of an assembly process in the microelectronics industry

O.L. Vargas、Benjamín Valdez、M.L. Veleva 等 6 位作者2009-06-26Anti-Corrosion Methods and Materials

Purpose The purpose of this paper is to evaluate the corrosion of silver due to hydrogen sulphide pollutant in indoor conditions at a microelectronics plant located in Mexicali, Baja California, a semi‐arid zone in the northwest of Mexico. Design/methodology/approach Silver coupons and silver plated on to copper‐lead…

Corrosion Behavior and InhibitionConcrete Corrosion and DurabilityRecycling and Waste Management Techniques

Magnetic field-induced transitions in La0.42Eu0.25Ca0.33MnO3perovskite manganite

G. R. Turpu、Ajay Gupta、K. Rama Reddy2009-06-26Journal of Physics D Applied Physics

Electrical and magnetic transport properties of polycrystalline La 0.42 Eu 0.25 Ca 0.33 MnO 3 manganite perovskite are reported here. Temperature dependence of electrical transport, in 0 and 0.6 T external magnetic fields, shows insulating behaviour down to the lowest measured temperatures. Application of 6 T external…

Magnetic and transport properties of perovskites and related materialsRare-earth and actinide compoundsAdvanced Condensed Matter Physics

Inhibitor design for ribonuclease A: the binding of two 5′-phosphate uridine analogues

Vicky G. Tsirkone、Kyriaki Dossi、Christina E. Drakou 等 6 位作者2009-06-26Acta Crystallographica Section F Structural Biology and Crystallization Communications

In the quest for the rational design of selective and potent inhibitors for members of the pancreatic ribonuclease A (RNase A) family of biomedical interest, the binding of uridine 5'-phosphate (U5P) and uridine 5'-diphosphate (UDP) to RNase A have been investigated using kinetic studies and X-ray crystallography. Bot…

DNA Repair MechanismsEnzyme Structure and FunctionBiochemical and Molecular Research

Immobilization of Two Azacrown Ethers on Chitosan: Evaluation of Selective Extraction Ability Toward Cu(II) and Ni(II)

Sait Malkondu、Ahmet Koçak、Mustafa Yılmaz2009-06-26Journal of Macromolecular Science Part A

Two Schiff base-type chitosan-azacrown ethers were prepared by a reaction of chitosan (CTS) with N-(4′-formylphenyl)aza-crown ethers, and they were converted to secondary-amino derivatives by the reduction of CTS-azacrown ethers with sodium borohydride. Their structures were confirmed by elemental analysis, infrared s…

Adsorption and biosorption for pollutant removalNanocomposite Films for Food PackagingPolymer Surface Interaction Studies

Physico-chemical characterization in the light of toxicological effects

T.M. Meißner、Annegret Potthoff、Volkmar Richter2009-06-26Inhalation Toxicology

Toxicological investigations on nanoparticles require a comprehensive physico-chemical characterization to get useful information about the powder as well as the behavior of the suspended nanoparticles in water and physiological media. Therefore, we characterized the often used TiO(2) P25 and developed procedures to g…

Nanoparticles: synthesis and applicationsGold and Silver Nanoparticles Synthesis and ApplicationsField-Flow Fractionation Techniques