Jilin Zhang、Yanchun Han2007-12-22Langmuir
In this paper, we have prepared of a topography/chemical composition gradient polystyrene (PS) surface, i.e., an orthogonal gradient surface, to investigate the relationship between surface wettability and surface structure and chemical composition. The prepared surface shows a one-dimensional gradient in wettability…
Surface Modification and SuperhydrophobicityFluid Dynamics and Heat TransferAdhesion, Friction, and Surface Interactions
Fuyi Chen、Roy L. Johnston2007-12-22ACS Nano
Using a genetic algorithm global optimization approach combined with density functional theory calculations, a search has been made for the lowest energies of (AgAu)(m) nanoalloys with 20-150 atoms (diameters of 1.0-2.0 nm). A total of 31 decahedra, 35 icosahedra, and 2 close-packed motifs are identified in two icosah…
Quantum Dots Synthesis And PropertiesNanocluster Synthesis and Applicationsnanoparticles nucleation surface interactions
Balbir Kaith、A. S. Singha、Sanjeev Kumar 等 4 位作者2007-12-22International Journal of Polymeric Materials
In this article, modification of mercerized flax (MFx) through graft co-polymerization with methylmethacrylate (MMA) using ferrous ammonium sulphate–potassium per sulphate (FAS–KPS) redox initiator has been reported. Water uptake and moisture absorbance properties of methylmethacrylate grafted mercerized flax (MFx-g-M…
Natural Fiber Reinforced CompositesElectrospun Nanofibers in Biomedical ApplicationsTribology and Wear Analysis
M. A. Hoefer、T. J. Silva、M. D. Stiles2007-12-22arXiv
A model of spin torque induced magnetization dynamics based upon semi-classical spin diffusion theory for a single layer nanocontact is presented. The model incorporates effects due to the current induced Oersted field and predicts the generation of a variety of spatially dependent, coherent, precessional magnetic wav…
Materials Science
Yanguang Li、Bing Tan、Yiying Wu2007-12-22Chemistry of Materials
We report an ammonia-evaporation-induced synthetic method for metal (Ni, Cu, Zn, and Cd) hydroxide/oxide nanostructures including hierarchical CuO spheres with radiating nanoplates, densely branched ZnO nanowires, Cd(OH) 2 nanofibers, and Ni(OH) 2 nanoplates. One important feature of this mild and surfactant-free meth…
ZnO doping and propertiesTransition Metal Oxide NanomaterialsCopper-based nanomaterials and applications
Sebastian Maćkowski、Stephan Wörmke、Andreas J. Maier 等 9 位作者2007-12-22Nano Letters
Ensemble and single-molecule spectroscopy demonstrates that both emission and absorption of peridinin-chlorophyll-protein photosynthetic antennae can be largely enhanced through plasmonic interactions. We find up to 18-fold increase of the chlorophyll fluorescence for complexes placed near a silver metal layer. This e…
Gold and Silver Nanoparticles Synthesis and ApplicationsPhotosynthetic Processes and MechanismsLuminescence and Fluorescent Materials
Konstantin N. Kudin、Bulent Ozbas、Hannes C. Schniepp 等 6 位作者2007-12-22OpenAlex
We investigate Raman spectra of graphite oxide and functionalized graphene sheets with epoxy and hydroxyl groups and Stone-Wales and 5-8-5 defects by first-principles calculations to interpret our experimental results. Only the alternating pattern of single-double carbon bonds within the sp2 carbon ribbons provides a…
Carbon Nanotubes in CompositesGraphene research and applicationsFiber-reinforced polymer composites
R. S. Hixson、D. D. Koller、G.T. Gray 等 9 位作者2007-12-21AIP conference proceedings
Lead is a material of fundamental scientific interest because of its relatively low melting point and ductility. Alloys of lead are used for practical reasons which include the desire to have a slightly harder form of the metal to be able to handle without damage. A practical question is how lead and alloys with small…
High-pressure geophysics and materialsEnergetic Materials and CombustionHigh-Velocity Impact and Material Behavior
V. V. Dremov、A. V. Karavaev、Andrey Kutepov 等 9 位作者2007-12-21AIP conference proceedings
At ambient conditions Be and Mg have hcp structure with non‐ideal c/a ratio. This does not allow using the simple, spherically symmetric potential in MD simulations. The Modified Embedded Atom Model (MEAM) accounting for local environment and angular forces has been applied to MD simulation of thermodynamic and mechan…
Microstructure and mechanical propertiesMetal and Thin Film MechanicsBoron and Carbon Nanomaterials Research
Roxana Judele、Michael J. Dix、Sabine Laschat 等 10 位作者2007-12-21Zeitschrift für anorganische und allgemeine Chemie
Abstract Hexaalkoxy‐substituted azamacrocyclic metal complexes 1 · MX n [MX n = FeCl 3 , CuCl 2 , SrCl 2 , Ln(NO 3 ) 3 ; Ln = La, Pr, Eu, Ho, Er] with various chain lengths were prepared by a convergent approach using 1,2‐bisalkoxy‐4,5‐diamines 3 and 4‐alkoxy‐pyridine‐2,6‐dicarbaldehydes 4 as key building blocks for t…
Organometallic Complex Synthesis and CatalysisMetal complexes synthesis and propertiesMagnetism in coordination complexes
Katsumi Tanaka、Mark Elert、Michael D. Furnish 等 6 位作者2007-12-21AIP conference proceedings
A particular characteristic of an explosively produced weld is that the profile of the weld interface often has a regular wavy appearance. Effects of detached shock wave and jetting on the metal interface of explosive welding has been considered by SPH. Numerical results show wavy interface which is observed in severa…
Energetic Materials and CombustionFluid Dynamics Simulations and InteractionsHigh-Velocity Impact and Material Behavior
Aaron Koskelo、Scott R. Greenfield、Dennis L. Paisley 等 15 位作者2007-12-21AIP conference proceedings
This paper presents results on the dynamics of damage in copper under incipient spall conditions for multicrystalline specimens. Specimens were annealed from polycrystalline material to reduce the number of grain boundaries the shock wave traverses in passing through the specimen. The specimens incorporated unique fid…
Energetic Materials and CombustionHigh-Velocity Impact and Material BehaviorElectromagnetic Launch and Propulsion Technology
L. Jong2007-12-21Journal of Applied Polymer Science
Abstract Carboxylated styrene‐butadiene (SB) composites reinforced by a mixture of defatted soy flour (DSF) and carbon black (CB) were investigated in terms of their dynamic mechanical properties. DSF is an abundant renewable commodity and has a lower cost than CB. DSF contains soy protein, carbohydrate, and whey. Aqu…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesNatural Fiber Reinforced Composites
Ruijun Gu、B. V. Kokta2007-12-21Journal of Thermoplastic Composite Materials
Study on the effect of concentration of maleated polypropylene (MAPP), dicumyl peroxide (DCP), nanoclay (NC), and aspen fiber loading on the mechanical properties of Aspen—PP composites has been undertaken with the objective to protect or increase the impact strength without losing or weakening the tensile strength. T…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesNatural Fiber Reinforced Composites
Fang Fang、Dongxu Zhao、Dezhen Shen 等 5 位作者2007-12-21Inorganic Chemistry
Ultrathin ZnO nanowire bundles have been synthesized on an indium-tin oxide substrate without any catalyst by using a simple thermal evaporation method, where self-organized ZnO nanowire bundles were grown on the hexagonal heads of ZnO nanocolumns. The nanowires obtained typically have diameters of 8 nm, with lengths…
ZnO doping and propertiesNanowire Synthesis and ApplicationsGa2O3 and related materials
Eric Lanteigne、Amor Jnifene2007-12-21Journal of Intelligent Material Systems and Structures
This study describes the design and fabrication of a pressurized hyper-redundant manipulator driven by high strain shape memory alloy (SMA) actuators. Hyper-redundant devices are characterized by repeating independently controlled structures connected in series; their architecture is comparable to that of a snake or w…
Shape Memory Alloy Transformations
Jong G. Ok、Bo Hyun Kim、Do Kwan Chung 等 10 位作者2007-12-21Journal of Micromechanics and Microengineering
A reliable and precise machining process, electrical discharge machining (EDM), was investigated in depth as a novel method for the engineering of carbon nanomaterials. The machining characteristics of EDM applied to carbon nanomaterials 'in air' were systematically examined using scanning electron microscopy (SEM), h…
Carbon Nanotubes in CompositesAdvanced Machining and Optimization TechniquesNanotechnology research and applications
С. В. Разоренов、G. I. Kanel、B. Herrmann 等 10 位作者2007-12-21AIP conference proceedings
Spall experiments have been carried out for copper in different structural states. The samples were copper single crystals, crystals of Cu+0.1% Si, copper crystals with silica particles of 180 nm average size, and polycrystalline copper. In experiments, the free surface velocity histories were recorded with the VISAR.…
Energetic Materials and CombustionHigh-Velocity Impact and Material BehaviorElectromagnetic Launch and Propulsion Technology
Yasunori Tanaka、Yoshitaka Takeuchi、Toshiaki Sakuyama 等 6 位作者2007-12-21Journal of Physics D Applied Physics
Numerical and experimental investigations on thermal interaction between thermal plasma and solid polymer powders using induction thermal plasma technique, Tanaka, Yasunori, Takeuchi, Y, Sakuyama, T, Uesugi, Y, Kaneko, S, Okabe, S
High voltage insulation and dielectric phenomenaVacuum and Plasma ArcsAerosol Filtration and Electrostatic Precipitation
César Reiriz、Luis Castedo、Juan R. Granja2007-12-21Journal of Peptide Science
We report here the preparation and structural characteristics of a novel self-assembling peptide composed of alternating alpha,alpha-dialkylated alpha-amino and cis-4-aminocyclopent-2-enecarboxylic acids. The use of alpha,alpha-dialkylated amino acids represents a novel method to prevent the formation of extensive bet…
Chemical Synthesis and AnalysisSupramolecular Self-Assembly in MaterialsPolydiacetylene-based materials and applications