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A method to predict the orientation relationship, interface planes and morphology between a crystalline precipitate and matrix. Part I. Approach

Abhay Raj Singh Gautam、James M. Howe2011-05-14The Philosophical Magazine A Journal of Theoretical Experimental and Applied Physics

A model based on the near-coincidence of diffraction intensity weighted reciprocal-lattice spots is proposed to determine preferred orientation relationships between two crystalline phases. The preferred orientation is found by minimizing the three-dimensional lattice mismatch, i.e. by maximizing the total overlapping…

Microstructure and mechanical propertiesAluminum Alloy Microstructure PropertiesX-ray Diffraction in Crystallography

Partial Oxidation of Methane and Oxygen Permeation in SrCoFeOx Membrane Reactor with Different Catalysts

Jay Kniep、Y. S. Lin2011-05-14Industrial & Engineering Chemistry Research

Partial oxidation of methane (CH 4 ) and oxygen permeation in a dense SrCoFeO x disk membrane reactor were studied with the reducing side of the membrane packed with different catalysts (catalyst support γ-Al 2 O 3, La 0.6 Sr 0.4 Co 0.8 Fe 0.2 O 3−δ, and 10 wt % Ni/γ-Al 2 O 3 ) of increasing reaction activities for CH…

Catalytic Processes in Materials ScienceAdvancements in Solid Oxide Fuel CellsElectronic and Structural Properties of Oxides

Copper Nanoparticles Synthesis from Electroplating Industry Effluent

Ratnika Varshney、Seema Bhadauria、M. S. Gaur 等 4 位作者2011-05-14Nano Biomedicine and Engineering

In present investigation, samples from wastewaters of electroplating industry were collected and analyzed for the concentration of Cu 2+ heavy metal.

Nanoparticles: synthesis and applicationsNanotechnology research and applications

Homogeneous Synthesis and Characterization of Cellulose Acetate Butyrate (CAB) in 1-Allyl-3-Methylimidazolium Chloride (AmimCl) Ionic Liquid

Yan Cao、Huiquan Li、Jun Zhang2011-05-14Industrial & Engineering Chemistry Research

Cellulose acetate butyrate (CAB) with butyryl content of 6–47 wt % was homogeneously synthesized in 1-allyl-3-methylimidazolium chloride (AmimCl) in a single step without using any catalysts. The effects of different acylating agents (acetic anhydride and butyric anhydride) addition methods and reaction conditions on…

Nanocomposite Films for Food PackagingAdvanced Cellulose Research Studiesbiodegradable polymer synthesis and properties

MetalDetector v2.0: predicting the geometry of metal binding sites from protein sequence

Andrea Passerini、Marco Lippi、Paolo Frasconi2011-05-14Nucleic Acids Research

MetalDetector identifies CYS and HIS involved in transition metal protein binding sites, starting from sequence alone. A major new feature of release 2.0 is the ability to predict which residues are jointly involved in the coordination of the same metal ion. The server is available at http://metaldetector.dsi.unifi.it…

RNA and protein synthesis mechanismsTrace Elements in HealthEnzyme Structure and Function

The model marine diatom Thalassiosira pseudonana likely descended from a freshwater ancestor in the genus Cyclotella

Andrew J. Alverson、Bánk Beszteri、Matthew L. Julius 等 4 位作者2011-05-14BMC Evolutionary Biology

BACKGROUND: Publication of the first diatom genome, that of Thalassiosira pseudonana, established it as a model species for experimental and genomic studies of diatoms. Virtually every ensuing study has treated T. pseudonana as a marine diatom, with genomic and experimental data valued for their insights into the ecol…

Marine and coastal ecosystemsAlgal biology and biofuel productionDiatoms and Algae Research

Sn-Modified ZSM-5 As Support for Platinum Catalyst in Propane Dehydrogenation

Yiwei Zhang、Yuming Zhou、Li Huang 等 5 位作者2011-05-14Industrial & Engineering Chemistry Research

Sn modified ZSM-5 was hydrothermally synthesized and this kind of zeolite was used as the support for platinum catalyst in propane dehydrogenation. In this tin-doped material, XRD results established the presence of highly crystalline and the analysis of SEM showed the deterioration in crystal quality. The incorporati…

Catalytic Processes in Materials ScienceZeolite Catalysis and SynthesisCatalysis and Oxidation Reactions

Shock Dynamics in Layered Periodic Media

David I Ketcheson、Randall J. LeVeque2011-05-14arXiv

Solutions of constant-coefficient nonlinear hyperbolic PDEs generically develop shocks, even if the initial data is smooth. Solutions of hyperbolic PDEs with variable coefficients can behave very differently. We investigate formation and stability of shock waves in a one-dimensional periodic layered medium by computat…

Materials Sciencecs.NAmath-phmath.MPmath.NA

Fluorescence lifetime modification in Eu:Lu2O3 nanoparticles in the presence of silver nanoparticles

Haoyan Wei、Zachary Cleary、Sang Park 等 5 位作者2011-05-14arXiv

Europium-doped lutetium-oxide (Eu:Lu2O3) nanoparticles were synthesized using a combustion technique and a co-precipitation technique, and their properties were compared. Surface-modification utilizing small silane molecules and long chain polymers were explored to de-agglomerate and disperse the particles. Structural…

Materials Science

Infrared and photoelectron spectroscopy study of vapor phase deposited poly (3-hexylthiophene)

Haoyan Wei、L. Scudiero、Hergen Eilers2011-05-14arXiv

Poly (3-hexylthiophene) (P3HT) was thermally evaporated and deposited in vacuum. Infrared spectroscopy was used to confirm that the thin films were indeed P3HT, and showed that in-situ thermal evaporation provides a viable route for contaminant-free surface/interface analysis of P3HT in an ultrahigh vacuum (UHV) envir…

Materials ScienceChemical Physics

Subchronic inhalation toxicity of gold nanoparticles

Jae Hyuck Sung、Jun Ho Ji、Jung Duck Park 等 16 位作者2011-05-14Particle and Fibre Toxicology

BACKGROUND: Gold nanoparticles are widely used in consumer products, including cosmetics, food packaging, beverages, toothpaste, automobiles, and lubricants. With this increase in consumer products containing gold nanoparticles, the potential for worker exposure to gold nanoparticles will also increase. Only a few stu…

Nanoparticles: synthesis and applicationsAir Quality and Health ImpactsHeavy Metal Exposure and Toxicity

Carbon-Based Supercapacitors Produced by Activation of Graphene

Yan-Wu Zhu、Shanthi Murali、Meryl D. Stoller 等 13 位作者2011-05-14OpenAlex

Supercapacitors, also called ultracapacitors or electrochemical capacitors, store electrical charge on high-surface-area conducting materials. Their widespread use is limited by their low energy storage density and relatively high effective series resistance. Using chemical activation of exfoliated graphite oxide, we…

Advancements in Battery MaterialsSupercapacitor Materials and FabricationAdvanced Battery Materials and Technologies

Ultrasmall Color‐Tunable Copper‐Doped Ternary Semiconductor Nanocrystal Emitters

Suresh Sarkar、Niladri S. Karan、Narayan Pradhan2011-05-13Angewandte Chemie

Durch Kationenaustausch von ZnII gegen InIII an der Oberfläche kann die Emission von Cu-dotierten Zinkindiumselenid-Halbleiternanokristallen zwischen 660 und 540 nm abgestimmt werden. Somit lässt sich die Emissionsfarbe von Rot nach Grün verändern (siehe Bild; der Pfeil markiert steigenden ZnII-Gehalt).

Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsNanocluster Synthesis and Applications

Fluorescence emission mechanism and fluorescence properties of ternary Tb(III) complex with diphenyl sulphoxide and bipyridine

Wen‐Xian Li、Yu‐Shan Zheng、Wen‐Juan Chai 等 8 位作者2011-05-13Luminescence

A novel ternary complex, TbL(5) L'(ClO(4))(3) · 3H(2)O, two binary complexes, TbL(7) (ClO(4))(3) · 3H(2)O and TbL'(3.5) (ClO(4))(3) · 4H(2)O has been synthesized (using diphenyl sulphoxide as the first ligand L, bipyridine as the second ligand L'). Their composition was analysed by element analysis, coordination titra…

Metal complexes synthesis and propertiesMagnetism in coordination complexesLanthanide and Transition Metal Complexes

Physical and mechanical properties of spinach for whole-surface online imaging inspection

Xiuying Tang、Chang Yeun Mo、Diane E. Chan 等 8 位作者2011-05-13Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

The physical and mechanical properties of baby spinach were investigated, including density, Young's modulus, fracture strength, and friction coefficient. The average apparent density of baby spinach leaves was 0.5666 g/mm<sup>3</sup>. The tensile tests were performed using parallel, perpendicular, and diagonal direct…

Textile materials and evaluationsCollagen: Extraction and CharacterizationMaterial Properties and Processing

Comparison of shape memory polyurethanes and polyurethane-ureas having crystalline reversible phase

Feng Long Ji、Jin Lian Hu2011-05-13High Performance Polymers

Shape memory polyurethanes (SMPUs) have been extensively investigated but shape memory polyurethane-ureas (SMPUUs) with aromatic diamines as chain extenders have been rarely reported. In the present study, a series of SMPUs and SMPUUs having crystalline reversible phase were prepared. The shape memory properties inclu…

Polymer composites and self-healingMarine Sponges and Natural ProductsPhotochromic and Fluorescence Chemistry

Phase Structure and Enhanced Piezoelectric Properties of Lead‐Free Ceramics (1− x )(K 0.48 Na 0.52 )NbO 3 –( x /5.15) K 2.9 Li 1.95 Nb 5.15 O 15.3 with High Curie Temperature

Youliang Wang、Yiqing Lu、Mengjia Wu 等 6 位作者2011-05-13International Journal of Applied Ceramic Technology

Lead‐free (1− x )(K 0.48 Na 0.52 )NbO 3 –( x /5.15)K 2.9 Li 1.95 Nb 5.15 O 15.3 (KNN–KLN100 x , x =0–0.25) piezoelectric ceramics have been prepared by a conventional solid‐state sintering technique. The effects of potassium lithium niobate (KLN) content on the phase structure and piezoelectric properties were investi…

Ferroelectric and Piezoelectric MaterialsAcoustic Wave Resonator TechnologiesMicrowave Dielectric Ceramics Synthesis

Elastic properties and electronic structures of MgCe intermetallic compounds from first‐principles calculations

Fang Yang、Jiwei Wang、Jiang‐Ling Ke 等 5 位作者2011-05-13physica status solidi (b)

Abstract First‐principles calculations have been carried out to investigate the elastic properties and electronic structures of the main binary MgCe phases MgCe, Mg 2 Ce, and Mg 3 Ce. The optimized equilibrium lattice constants are in agreement with the available experimental values, and the structural stability of M…

Boron and Carbon Nanomaterials ResearchMXene and MAX Phase MaterialsSuperconductivity in MgB2 and Alloys

Optical amplification of Eu(TTA)_3Phensolution-filled hollow optical fiber

Zhijia Hu、Weiwei Qiu、Xusheng Cheng 等 15 位作者2011-05-13Optics Letters

A liquid core optical fiber (LCOF) composed of hollow fiber and a solution of Eu(TTA)(3)Phen (TTA=2-thenoyltrifluoroacetone, Phen=1, 10-phenanthroline) in dimethyl sulfoxide (DMSO) has been fabricated, in which the concentration of Eu(TTA)(3)Phen in DMSO is 0.8 wt.%, the core diameter of the LCOF is 10 μm, and the fib…

Lanthanide and Transition Metal ComplexesQuantum optics and atomic interactionsAtomic and Subatomic Physics Research

Cyclization of Pseudoionone to β-Ionone: Reaction Mechanism and Kinetics

Madhvanand N. Kashid、Igor Yuranov、Pauline Raspail 等 7 位作者2011-05-13Industrial & Engineering Chemistry Research

Cyclization of pseudoionone (PI) to β-ionone is an important reaction used in the synthesis of vitamin A and in perfumery. Though the reaction is used for commercial production, its mechanism and kinetics are not known, and the same holds for the optimal performance of the process. This paper deals with experimental i…

Polyoxometalates: Synthesis and ApplicationsChemical Synthesis and ReactionsOrganic Chemistry Cycloaddition Reactions