Ahmed A. Basfar、Jaroslav Mosnáček、T. M. Shukri 等 6 位作者2007-09-24Journal of Applied Polymer Science
Abstract Formulations of chemically crosslinked and radiation‐crosslinked low‐density polyethylene (LDPE) containing an intumescent flame retardant such as ammonium polyphosphate were prepared. The influence of blending LDPE with a poly(ethylene vinyl acetate) copolymer (EVA) and the effects of various coadditives, in…
Polymer Nanocomposites and PropertiesFlame retardant materials and propertiesPolymer Nanocomposite Synthesis and Irradiation
D. Weissenberger、Michael Dürrschnabel、Dagmar Gerthsen 等 9 位作者2007-09-24Applied Physics Letters
ZnO nanorods were implanted with Ga+ ions in a combined scanning-electron-microscope/focused-ion-beam system with doses from 1011to1017cm−2. Electrical resistance measurements performed on single ZnO nanorods yield first an increase of the resistance due to defect formation which lowers the electron mobility. Implanta…
ZnO doping and propertiesQuantum Dots Synthesis And PropertiesCopper-based nanomaterials and applications
Xutong Han、Ye Tian、Lihua Wang 等 4 位作者2007-09-24Journal of Applied Polymer Science
Abstract A soluble polyimide was synthesized from 2,2′‐bis[4‐(3,4‐dicarboxyphenoxy)phenyl]propane dianhydride (BPADA) and 3,3′‐dimethyl‐4,4′‐diaminodiphenylmethane (DMMDA) by a two‐step method, and it had good solubility both in strong bipolar solvents and in common low‐boiling‐point solvents. The BPADA–DMMDA polyimid…
Mesoporous Materials and CatalysisSynthesis and properties of polymersSilicone and Siloxane Chemistry
A. Ruotolo、A. Oropallo、F. Miletto Granozio 等 7 位作者2007-09-24Applied Physics Letters
The authors have performed experiments on current-induced domain wall (DW) displacement in La0.7Sr0.3MnO3 nanostructures patterned by gallium (Ga) focused-ion-beam milling. A dc current is found to assist or hinder, according to polarity, an external magnetic field in the depinning of a DW trapped in a nanoconstrictio…
Magnetic properties of thin filmsMagnetic and transport properties of perovskites and related materialsMultiferroics and related materials
Huiru Zhang、Huihui Zhang、Mingwei Tong 等 5 位作者2007-09-24Journal of Applied Polymer Science
Abstract Lyocell fibers were produced from a cheap pulp with a high hemicellulose content and from a conventional pulp with a high α‐cellulose content. The mechanical properties, supermolecular structure, fibrillation resistance, and dyeing properties as well as the fibril aggregation size of the high hemicellulose Ly…
Advanced Cellulose Research StudiesMaterial Properties and ProcessingScientific Research and Discoveries
Mirelle Lomar Viana、R. Dı́ez Muiño、E.A. Soares 等 5 位作者2007-09-24Journal of Physics Condensed Matter
Photoelectron diffraction (PED) is an experimental technique widely used to perform structural determinations of solid surfaces. Similarly to low-energy electron diffraction (LEED), structural determination by PED requires a fitting procedure between the experimental intensities and theoretical results obtained throug…
Electron and X-Ray Spectroscopy TechniquesX-ray Diffraction in CrystallographyCrystallography and Radiation Phenomena
Yong Zhu、Jinlian Hu、Ka‐Fai Choi 等 6 位作者2007-09-24Journal of Applied Polymer Science
Abstract To illustrate the crystallization properties of soft segments in shape‐memory polyurethane (SMPU) ionomers, a series of SMPU ionomers with various ionic group contents and two kinds of counterions were synthesized with a prepolymerization method. An isothermal crystallization kinetic method was used to analyz…
Polymer Nanocomposites and PropertiesPolymer composites and self-healingEpoxy Resin Curing Processes
Yasuyuki Agari、Kiyofumi Sakai、Yosikazu Kano 等 4 位作者2007-09-24Journal of Polymer Science Part B Polymer Physics
Abstract We prepared biodegradable poly(ethylene oxide) (PEO)/poly( L ‐lactic acid) (PLLA) graded blends by the dissolution–diffusion process, and discussed the biodegradability and tensile strength of the graded blends by comparing isotropic blend and PLLA only. All the graded blends were degraded more largely than t…
biodegradable polymer synthesis and propertiesMicroplastics and Plastic PollutionAdditive Manufacturing and 3D Printing Technologies
Pilar Luna、Miguel Ángel de la Fuente、Daniela P. Marchi Salvador 等 4 位作者2007-09-24Lipids
The oxidation kinetics of conjugated methyl linoleate was compared with that of non-conjugated methyl linoleate under mild oxidation conditions (30 degrees C in the dark). Samples of methyl 9-cis,11-trans-linoleate, methyl 10-trans,12-cis linoleate and methyl 9-cis,12-cis linoleate were assayed separately and in mixtu…
biodegradable polymer synthesis and propertiesPolymer composites and self-healingPolydiacetylene-based materials and applications
M. H. Rümmeli、Christian Kramberger、Franziska Schäffel 等 11 位作者2007-09-24physica status solidi (b)
Abstract We have systematically explored the synthesis parameters in laser evaporation and CVD for the synthesis of carbon nanotubes. Our findings point to a dependence of the resultant tubes on the volume to surface area ratio of the catalyst particle. The data furthers our understanding on the nucleation of carbon n…
Carbon Nanotubes in CompositesGraphene research and applicationsFullerene Chemistry and Applications
Jannette Carey、J. Brynda、J. Wolfova 等 7 位作者2007-09-24Protein Science
The crystal structure of the flavodoxin-like protein WrbA with oxidized FMN bound reveals a close relationship to mammalian NAD(P)H:quinone oxidoreductase, Nqo1. Structural comparison of WrbA, flavodoxin, and Nqo1 indicates how the twisted open-sheet fold of flavodoxins is elaborated to form multimers that extend cata…
Photosynthetic Processes and MechanismsEnzyme Structure and FunctionTryptophan and brain disorders
M. Otani、Nathan D. Lowhorn、Peter K. Schenck 等 7 位作者2007-09-24Applied Physics Letters
The authors have developed a high-throughput screening tool that maps out thermoelectric power factors of combinatorial composition-spread film libraries. The screening tool allows one to measure the electrical conductivity and Seebeck coefficient of over 1000 sample points within 6h. Seebeck coefficients of standard…
Advanced Thermoelectric Materials and DevicesThermal Expansion and Ionic ConductivitySurface and Thin Film Phenomena
D. M. N. M. Dissanayake、Ross A. Hatton、Thierry Lutz 等 6 位作者2007-09-24Applied Physics Letters
PbS nanocrystal (nc-PbS)-C60 photovoltaic devices are demonstrated, in which nc-PbS function as electron donors, showing infrared photosensitivity up to 1600nm. Annealing nc-PbS is proved to remove capping oleic acid ligands, studied using x-ray photoelectron spectroscopy, significantly improving the short circuit cur…
Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsMolecular Junctions and Nanostructures
Leon Mishnaevsky2007-09-24Medical Entomology and Zoology
Preface. 1 Composites. 1.1. Classification and types of composites. 1.2. Deformation, damage and fracture of composites: micromechanisms and roles of phases. 2. Mesoscale level in the mechanics of materials. 2.1. On the definitions of scale levels: Micro- and mesomechanics. 2.2. Size effects. 2.3. Biocomposites. 2.4.…
Material Properties and ApplicationsMechanical and Thermal Properties AnalysisMaterial Properties and Failure Mechanisms
Tieshu Huang、Gregory E. Hilmas、William G. Fahrenholtz 等 4 位作者2007-09-24International Journal of Applied Ceramic Technology
The dispersion of ZrB 2 particles was investigated. In aqueous systems, the surface of ZrB 2 consists of a thin layer of ZrO 2 that controls the surface chemistry and surface charge. Measurements showed that the ZrB 2 had an isoelectric point of pH=4.7 and a maximum ζ potential of −50 mV at pH=9. The addition of a dis…
Advanced ceramic materials synthesisNuclear materials and radiation effectsChemical Synthesis and Characterization
Lili Liu、Chuncheng Chen、Xuefeng Hu 等 7 位作者2007-09-24New Journal of Chemistry
Ionic liquid (IL), such as 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim][PF6]), as an activator for the epoxidation of a wide variety of olefins with H2O2 catalyzed by Keggin polyoxometalate [bmim]3PW12O40 has been demonstrated. Use of IL results both in significant enhancement of TOF and selectivity for ole…
Polyoxometalates: Synthesis and ApplicationsChemical Synthesis and ReactionsOxidative Organic Chemistry Reactions
Jaewon Kim、A. Gopinath2007-09-24Physical Review B
Simulation results of a metamaterial structure which uses cubic high dielectric resonators, periodically embedded in a low dielectric background in a cubic lattice, are presented. Cubic dielectric resonators have degenerate modes, which imply that the TE and TM modes have the same resonant frequency. The proposed meta…
Antenna Design and AnalysisMetamaterials and Metasurfaces ApplicationsAdvanced Antenna and Metasurface Technologies
Frank Tietz、Qingxi Fu、V.A.C. Haanappel 等 6 位作者2007-09-24International Journal of Applied Ceramic Technology
High‐power density and high durability are the main targets for solid oxide fuel cell (SOFC) development at Forschungszentrum Jülich. Power density has been further increased by variation of the material composition of perovskite‐based cathodes (Sr content, Co content, substoichiometry) and by optimization of the diff…
Advancements in Solid Oxide Fuel CellsCatalysis and Oxidation ReactionsElectronic and Structural Properties of Oxides
P. Jaffrennou、Julien Barjon、Jean‐Sébastien Lauret 等 8 位作者2007-09-24physica status solidi (b)
Abstract Optical properties of multiwall boron nitride nanotubes are investigated by means of luminescence and absorption spectroscopies. Cathodoluminescence imaging shows that boron nitride nanotubes are highly UV luminescent materials and that the luminescence is located all along the nanotube. In comparison with th…
Graphene research and applicationsFullerene Chemistry and ApplicationsBoron and Carbon Nanomaterials Research
Anton V. Polotai、Gaiying Yang、Elizabeth C. Dickey 等 4 位作者2007-09-24Journal of the American Ceramic Society
Microstructural control in thin‐layer multilayer ceramic capacitors (MLCCs) is one of the present‐day challenges for maintaining an increase in capacitive volumetric efficiency. The present paper continues a series of investigations aimed at understanding and controlling the microstructural stability of ultrathin Ni e…
Ferroelectric and Piezoelectric MaterialsSemiconductor materials and devicesElectrodeposition and Electroless Coatings