M. R. Fernández、J. C. Merino、M. I. Gobernado-Mitre 等 4 位作者2000-08-01Applied Spectroscopy
Crystallization of isotactic polypropylene (iPP) from the melt in the presence of poly(ethyleneterephthalate) (PET) fibers has been shown to produce preferential nucleation at the fiber surfaces leading to formation of columnar or transcrystalline growth. The crystalline development of PP has been examined by using op…
Polymer crystallization and propertiesSpectroscopy and Chemometric AnalysesSpectroscopy Techniques in Biomedical and Chemical Research
J. Karger‐Kocsis2000-08-01Polymer Composites
Abstract Polypropylene (PP) composites with glass and natural fiber mat reinforcement (GMT‐PP and NMT‐PP, respectively) are widely used in different applications, competing with metallic sheets and thermoset polymer composites. Their production occurs via melt impregnation, slurry deposition and various textile archit…
Mechanical Behavior of CompositesNatural Fiber Reinforced CompositesFiber-reinforced polymer composites
José Marı́a Román、Joan Soto2000-08-01Physical review. B, Condensed matter
We present the effective Lagrangian for low energy and momentum spin waves in canted phases at next to leading order in the derivative expansion. The symmetry-breaking pattern $\mathrm{SU}(2)\ensuremath{\rightarrow}1$ of the internal spin group and that of the crystallographic space group imply that there is one ferro…
Magnetic and transport properties of perovskites and related materialsRare-earth and actinide compoundsAdvanced Condensed Matter Physics
E. Breval、Jiping Cheng、Dinesh Agrawal2000-08-01Journal of the American Ceramic Society
The performance of many wear‐resistant materials can be improved further by incorporating diamond into the structure. Diamond that has been coated with titanium is known to adhere well to the matrix particles and also prevents reaction with H 2 , which often is used in the sintering atmosphere. Two coating methods of…
Metal and Thin Film MechanicsDiamond and Carbon-based Materials ResearchTribology and Wear Analysis
Xuefeng Wang、Mingfei Zhou、Lester Andrews2000-08-01The Journal of Physical Chemistry A
Laser-ablated manganese atoms react with CO and NO mixtures upon condensation in excess argon and further annealing to produce a series of unsaturated manganese carbonyl nitrosyl complexes including Mn(CO)(NO), Mn(CO)(NO) 2, and Mn(CO) 2 (NO). The Mn(CO)(NO) complex isomerizes to Mn(CO)(η 2 -NO) on visible photolysis,…
Advanced Chemical Physics StudiesCatalytic Processes in Materials ScienceCatalysis and Oxidation Reactions
Du Thi Xuan Thao、C.A.J. Ammerlaan、T. Gregorkiewicz2000-08-01Journal of Applied Physics
Photoluminescence measurements have been made on float-zone and Czochralski-grown silicon samples which were doped with erbium by ion implantation. The characteristic luminescence spectra in the wavelength range between 1.5 and 1.6 μm were observed. Differences in the multiple line structure of the spectra indicated t…
Semiconductor materials and devicesThin-Film Transistor TechnologiesSilicon Nanostructures and Photoluminescence
T. Strunskus、V. Zaporojtchenko、K. Behnke 等 5 位作者2000-08-01Advanced Engineering Materials
Based on a good knowledge of the basic processes occurring in the initial stages of metal/polymer interface formation the preparation conditions can be selected to obtain a desired interfacial morphology. Very sharp or spread-out metal/polymer interfaces can thus be formed, the cluster density on the surface can be ad…
Block Copolymer Self-AssemblyElectrostatics and Colloid InteractionsSurface and Thin Film Phenomena
S. V. Bulyarskiĭ、A. E. Kozhevin、S. N. Mikov 等 4 位作者2000-08-01physica status solidi (a)
The photoluminescence spectra of Al2O3:Cr3+ nanopowder under excitation by a frequency-doubled YAG:Nd laser (λex = 532 nm) and a nitrogen-vapour pulsed laser (λex = 337.1 nm) have been studied. A considerable difference between the spectra of nanocrystalline and macrocrystalline samples has been observed. The nanocrys…
Silicon Nanostructures and PhotoluminescenceSemiconductor materials and interfacesIon-surface interactions and analysis
J.L. Valverde、Pablo Cañizares、María del Rosario Sun Kou 等 4 位作者2000-08-01Clays and Clay Minerals
Abstract A commercial bentonite (primarily smectite) from Fischer Scientific Company (F bentonite) and a natural bentonite from Peru (P bentonite) were used in the preparation of pillared clays with polyoxymetal cations of Al that were subsequently modified with Ce and La. Several Al/metal ratios (5 and 9) were used t…
Mesoporous Materials and CatalysisClay minerals and soil interactionsLayered Double Hydroxides Synthesis and Applications
Dominique Bourgeois、Ulrike Wagner、Michaël Wulff2000-08-01Acta Crystallographica Section D Biological Crystallography
Laue data reduction has now reached a level of sophistication that allows nearly automated processing to be performed. The software described enables complete reduction of the data with essentially no user intervention, making Laue processing almost as straightforward as monochromatic data processing. Interactive work…
Protein Structure and DynamicsMetabolomics and Mass Spectrometry StudiesEnzyme Structure and Function
Y.L. Buisson、Kanniah Rajasekaran、Alfred D. French 等 5 位作者2000-08-01Textile Research Journal
Abrasion and heat damage to desized and scoured cotton fabric during drying in a household tumble dryer are evaluated by SEM (scanning electron microscopy) and weight and tensile/strain tests for breaking strength and elongation. Wet fabric dried with heat shows severe fiber damage, and wet fabric tumbled at room temp…
Textile materials and evaluations
N. A. McPherson、Y. Li、T. N. Baker2000-08-01Science and Technology of Welding & Joining
Butt welds of duplex stainless steel plate (grade 2205) have been produced using grade 2209 consumables for a variety of welding processes employed in the shipbuilding industry. The welding processes were used initially with interpass temperatures in the range 250–350°C. When the interpass temperature was controlled t…
Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsWelding Techniques and Residual Stresses
Matilde de Romero、Zoilabet Duque、Oladis Troconis de Rincón 等 6 位作者2000-08-01CORROSION
Alloy Cu-10% Ni (ASTM B-111, UNS C70600) has been used extensively for condenser and heat exchanger tubes in power stations. However, there have been cases of severe localized corrosion in this alloy. This paper presents the evaluation of Cu-10% Ni in a dynamic online monitoring system with one-way circulation using a…
Corrosion Behavior and InhibitionMetal Extraction and BioleachingWater Treatment and Disinfection
K. Ziegler、Fred J. Longstaffe2000-08-01Clays and Clay Minerals
Abstract Chlorite and illite are commonly associated with ubiquitous secondary K-rich feldspar in the rocks located immediately above and below the Precambrian-Paleozoic unconformity in southwestern Ontario, and elsewhere in the mid-continent of North America. This alteration assemblage is attributed to long-distance…
Groundwater and Isotope GeochemistrySoil and Unsaturated FlowClay minerals and soil interactions
Virginie Hornebecq、Catherine Elissalde、François Weill 等 6 位作者2000-08-01Journal of Applied Crystallography
Electron diffraction analysis, nuclear magnetic resonance measurements, structure determinations and refinements were performed on two ferroelectric lead-containing ceramics (classical and relaxor), with tetragonal tungsten bronze structure, in order to investigate the origin of the relaxor behaviour in such compounds…
Ferroelectric and Piezoelectric MaterialsAcoustic Wave Resonator TechnologiesMicrowave Dielectric Ceramics Synthesis
Tao Huang、Musa R. Kamal2000-08-01Polymer Engineering and Science
Abstract A physical model of semicrystalline polymer solidification is proposed, along with an outline of general theoretical aspects of morphological modeling. Computational modeling, based on the proposed envelop evolution equation associated with a primary nucleation model and the elastic energy equation of the lam…
Polymer crystallization and propertiesRheology and Fluid Dynamics StudiesInjection Molding Process and Properties
Sheng‐Xiang Qiu、Xing‐Cong Li、Yansan Xiong 等 8 位作者2000-08-01Planta Medica
A cytotoxic steroidal glycoside was isolated from Chlorophytum malayense Ridley and its structure was characterized as a known compound, neohecogenin 3-O-beta-D-glucopyranosyl(1-->2)-[beta-D-xylopyranosyl(1-->3)]-beta-D- glucopyranosyl(1-->4)-beta-D-galactopyranoside (chloromaloside A). The structural identification w…
Natural product bioactivities and synthesisPhytochemical Studies and BioactivitiesPhytochemistry and Bioactive Compounds
M. W. Matsen、John M. Gardiner2000-08-01The Journal of Chemical Physics
Based on weak- and strong-segregation theories, symmetric AB diblock copolymers and the homologous A2B2 starblock copolymers formed by joining pairs of diblocks together by their junctions should have identical order–disorder transitions (ODT’s) and lamellar periods. However, recent experiments report that the starblo…
Theoretical and Computational PhysicsRheology and Fluid Dynamics StudiesBlock Copolymer Self-Assembly
Jinsoo Kim、Y. S. Lin2000-08-01AIChE Journal
Abstract Thin dense yttria‐stabilized‐zirconia (YSZ)/Pd composite (dual‐phase) membranes were fabricated on porous YSZ membranes by a new approach that combines the reservoir method and chemical vapor deposition (CVD) technique. A thin porous YSZ layer was coated on a porous alumina support by dip coating the YSZ susp…
Catalytic Processes in Materials ScienceAdvancements in Solid Oxide Fuel CellsMolten salt chemistry and electrochemical processes
Bradley Hernlem、Lee‐Shin Tsai2000-08-01Journal of Food Science
ABSTRACT Electroflotation is a promising technology for simultaneous disinfection and removal of floatable constituents of food process water or fluid products. A bench‐scale electroflotation apparatus was constructed. The device demonstrated that disinfection was affected by the presence of chloride and the applied c…
Advanced oxidation water treatmentWater Treatment and DisinfectionUltrasound and Cavitation Phenomena