A. S. Alexandrov、A. M. Bratkovsky2003-10-22arXiv
We analyze the applicability of our analytical theory of combination harmonics in canonical low-dimensional multi-band Fermi liquids, which was recently criticized by Champel (Phys. Rev. B 65, 153403 (2002)). It is shown that his claim that our analytical theory does not apply at low temperatures and in clean samples,…
Mesoscale and Nanoscale PhysicsMaterials Sciencecond-mat.stat-mech
Junhui He、Toyoki Kunitake、Aiko Nakao2003-10-22OpenAlex
In situ synthesis of noble metal (Ag, Au, Pt, Pd) nanoparticles was carried out under ambient conditions in porous cellulose fibers as nanoreactors. Particles of less than 10 nm were readily prepared using the described approach, and monodisperse nanoparticles were obtained under an optimized concentration of the meta…
Advanced Cellulose Research StudiesCopper-based nanomaterials and applicationsNanomaterials for catalytic reactions
Kenneth K. S. Lau、José Bico、Kenneth B. K. Teo 等 8 位作者2003-10-22OpenAlex
The present study demonstrates the creation of a stable, superhydrophobic surface using the nanoscale roughness inherent in a vertically aligned carbon nanotube forest together with a thin, conformal hydrophobic poly(tetrafluoroethylene) (PTFE) coating on the surface of the nanotubes. Superhydrophobicity is achieved d…
Carbon Nanotubes in CompositesSurface Modification and SuperhydrophobicityAdvanced Sensor and Energy Harvesting Materials
T. A. Eremina、V. A. Kuznetsov、T. M. Okhrimenko 等 4 位作者2003-10-21Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
On the basis of crystal chemical analysis and modeling KDP structure, the mechanism of incorporation of bivalent ions (Ni2+, Co2+, Fe2+, Mn2+) of radii 0.75 Å < r < 1.1 Å and trivalent ions (Al3+, Fe3+, Mn3+, Y3+, La3+) in KDP crystals is analyzed. For the considered bivalent (Me2+) and trivalent (Me3+) impurity ions,…
Photonic and Optical DevicesNonlinear Optical Materials ResearchSemiconductor Lasers and Optical Devices
Taehwan Ahn、Yun Heum Park、Seong Hun Kim 等 4 位作者2003-10-21Journal of Applied Polymer Science
Abstract Poly(ether ester) elastomers (PEEs) were synthesized in which dimethyl terephthalate (DMT) was the primary diester compound in the hard segment (H/S) and dimethyl 2,6‐naphthalene dicarboxylate (NDC), which has a more rigid aromatic chemical structure than DMT, was the secondary diester in the H/S. The block P…
Polymer crystallization and propertiesAdvanced Polymer Synthesis and CharacterizationSynthesis and properties of polymers
Jean‐François Pilichowski、Tibor Liptaj、Myriam Morel 等 5 位作者2003-10-21Polymer International
Abstract T 2 proton NMR relaxation times were used to follow the changes in the macromolecular chain mobility of a chemically (by dicumyl peroxide) cross‐linked polybutadiene matrix. The same phenomenon was also studied by an investigation of the ability of the polymer to crystallize using DSC measurements. The solubi…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesPolymer composites and self-healing
Mohammad L. Hassan2003-10-21Journal of Applied Polymer Science
Abstract Jute textile was recycled into composites using different percents of phenol formaldehyde (PF) resin. The effect of the resin percent, from 12 to 30%, on the flexural strength, tensile strength, water absorption, and thickness swelling of the produced composites was studied. To improve the dimensional stabili…
Natural Fiber Reinforced CompositesAdditive Manufacturing and 3D Printing TechnologiesTextile materials and evaluations
Benedict Newling、Stephen N. Batchelor2003-10-21The Journal of Physical Chemistry B
PFG NMR results are reported on H 2 O, PEG200, PEG1500, PEG8000, and PEG20000 in wet cotton fibers and H 2 O in wet cotton linters. The data are analyzed in terms of a two-site exchange model (water/cotton) and show that the probe molecules in fibers are trapped in cages. The cage size decreases from 10 to 2 μm as the…
Textile materials and evaluationsResearch in Cotton Cultivation
J. E. Imanah、F. E. Okieimen2003-10-21Journal of Applied Polymer Science
Abstract Cocoa pod powdered (CP) and Carbonized Cocoa pod powdered (CCP) sieved through 150 μm mesh were characterized in terms of loss on ignition, surface area, moisture content, and oil absorption and used as filler in compounding natural rubber and vulcanized using efficient vulcanization system. The processing an…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesNatural Fiber Reinforced Composites
Manwar Hussain、Russell J. Varley、Mattias Zenka 等 4 位作者2003-10-21Journal of Applied Polymer Science
Abstract An organophosphorus epoxy resin with diglycidyl ether of bisphenol A (DGEBA), which has improved fire performance, was synthesized from the reaction of 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide and DGEBA. The epoxy resin was then cured with an isomeric mixture of 3,5‐diethyltoluene‐2,4‐diamine and 3,…
Epoxy Resin Curing ProcessesFlame retardant materials and propertiesSynthesis and properties of polymers
Xuejia Ding、Riwei Xu、Dingsheng Yu 等 5 位作者2003-10-21Journal of Applied Polymer Science
Abstract Nylon 6 (PA6) is a widely used engineering plastic. However, its poor toughness limits its applications. Therefore, toughening PA6 has been a point of interest in the field of PA6 modification. Generally, toughening a plastic with an elastomer reduces the stiffness and heat distortion temperature of the matri…
Polymer crystallization and propertiesPolymer Nanocomposites and Propertiesbiodegradable polymer synthesis and properties
Concepción Domingo、A. Belmonte Vega、María A. Fanovich 等 5 位作者2003-10-21Journal of Applied Polymer Science
Abstract Microspheres based on synthetic polymers such as poly(methyl methacrylate) (PMMA) and PMMA blends are known for their medical and optical applications. The development of methods for processing polymeric microspheres using a nontoxic solvent, like supercritical carbon dioxide (SCCO 2 ), is desirable. This wor…
Phase Equilibria and ThermodynamicsCarbon dioxide utilization in catalysisPolymer Foaming and Composites
José M. Fraile、José A. Mayoral、Jorge Serrano 等 6 位作者2003-10-21Organic Letters
[reaction: see text] A readily available chiral amino alcohol has been immobilized on silica by sol-gel synthesis and grafting. The solid prepared according to the latter method led to the best enantioselectivity (77% ee) described for the asymmetric addition of diethylzinc to benzaldehyde using inorganic solids.
Mesoporous Materials and CatalysisAnalytical Chemistry and ChromatographySurface Chemistry and Catalysis
Krystyna Rachlewicz、Sian‐Ling Wang、Chih‐Hsiung Peng 等 5 位作者2003-10-21Inorganic Chemistry
Iron(II) 2-aza-21-carbaporphyrins have been characterized by paramagnetically shifted (1)H and (2)H NMR spectra. The high-spin iron(II) complex (HCTPPH)Fe(II)Br displays the beta-H resonances which reflect the combination sigma and pi routes of spin density delocalization. The uniquely large isotropic shift of the inn…
Porphyrin and Phthalocyanine ChemistryHemoglobin structure and functionPorphyrin Metabolism and Disorders
Yair Cohen、Mikhael D. Levi、Doron Aurbach2003-10-21Langmuir
Polypyrrole (PPy) films obtained by low-current galvanostatic polymerization of pyrrole in propylene carbonate solutions exhibit excellent reversibility, high anodic stability, and, at the same time, a characteristic change in the shape of the voltammetric response and an increase in the film's doping level during lon…
Conducting polymers and applicationsElectrochemical Analysis and ApplicationsAnalytical Chemistry and Sensors
Carlos Andrés Díaz Rodríguez、Jorge Medina、Helmut Reinecke2003-10-21Journal of Applied Polymer Science
Abstract The preparation of new cellulose fiber reinforced thermoplastics is described, and the mechanical properties and water absorption of these materials are measured. In order to improve the compatibility between cellulosic and plastic materials, different amounts of coupling agents, such as organotitanate compou…
Natural Fiber Reinforced CompositesAdvanced Cellulose Research StudiesElectromagnetic wave absorption materials
作者信息未提供2003-10-21Materials Today
With the growth in the aged population and the need to extend average individual healthspan, biomaterials have an increasingly important role in the development of new generation medical devices, drug delivery systems, and medical diagnostic technologies. This column seeks to provide an insight into the latest develop…
Electrospun Nanofibers in Biomedical Applications
M. Nowak、Piotr Szperlich、Andrzej Kidawa 等 6 位作者2003-10-21Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
The optical transmittance and reflectance of SbSI single crystals had been measured for photon energies from 1.5 to 2.6 eV in temperature range from 77 K to 343 K. The experimental data had been evaluated to determine anisotropic, spectral and temperature dependences of real part of refractive index and absorption coe…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsSolid-state spectroscopy and crystallography
R. Colaço、R. Vilar2003-10-21Journal of Laser Applications
In this article a novel methodology for the development of hardfacing materials, the so-called laser-assisted rapid-alloy-prototyping technique, based on variable powder feed rate laser cladding, is described. An Fe–Cr–C metallic matrix composite, reinforced with NbC carbide particles, was chosen as a case study for t…
Additive Manufacturing Materials and ProcessesHigh Entropy Alloys StudiesMetal Alloys Wear and Properties
Weihua Li、Yue Huang、Guosheng Zhang 等 4 位作者2003-10-21Polymer International
Abstract Brill transition behaviour of nylons 6/16, 4/16 and 2/16 has been studied systematically by variable‐temperature wide‐angle X‐ray diffraction (WAXD) and real‐time FTIR. It is shown that all nylons investigated undergo Brill transitions before melting on heating. Brill temperatures detected by real‐time FTIR a…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesSurfactants and Colloidal Systems