J.R. Withers、C. Ruschmann、Pasano Bojang 等 5 位作者2004-12-16Inorganic Chemistry
Treatment of [M(II)(en)(3)][OTs](2) or methanolic ethylenediamine solutions containing transition metal p-toluenesulfonates (M(II) = Mn, Co) with aqueous K(4)M(IV)(CN)(8).2H(2)O or Cs(3)M(V)(CN)(8) (M(IV) = Mo, W; M(V) = Mo) affords crystalline clusters of [M(II)(en)(3)][cis-M(II)(en)(2)(OH(2))(mu-NC)M(IV)(CN)(7)].2H(…
Metal-Organic Frameworks: Synthesis and ApplicationsMagnetism in coordination complexesLanthanide and Transition Metal Complexes
Shenghong Zhang、Stephen H. Garofalini2004-12-16Journal of the American Ceramic Society
The interface structures of calcium–alumino–silicate (CAS) glassy intergranular films (IGFs) formed between the combined basal and prism orientations of α‐Al 2 O 3 crystals were studied using molecular dynamics simulations. Preferential adsorption of specific ions from the IGFs to the contacting surfaces of the alumin…
Material Dynamics and PropertiesGlass properties and applicationsMetallic Glasses and Amorphous Alloys
G.-L. Liu、J.-S. Zhou、John B. Goodenough2004-12-16Physical Review B
Measurement of specific heat ${C}_{p}(T)$ below $300\phantom{\rule{0.3em}{0ex}}\mathrm{K}$ of melt-grown samples of ${\mathrm{La}}_{1\ensuremath{-}x}{\mathrm{Ca}}_{x}\mathrm{Mn}{\mathrm{O}}_{3}$ $(0\ensuremath{\leqslant}x\ensuremath{\leqslant}0.3)$ and ${R}_{0.7}{A}_{0.3}\mathrm{Mn}{\mathrm{O}}_{3}$ $(R=\text{rare}\te…
Magnetic and transport properties of perovskites and related materialsAdvanced Condensed Matter PhysicsThermal Expansion and Ionic Conductivity
Wang、Jianyu Huang、Ren2004-12-16Langmuir
We present a low-temperature inverse micelle solvothermal approach for the synthesis of germanium nanocubes using the surfactant heptaethylene glycol monododecyl ether as a capping agent. X-ray diffraction results indicate that the as-prepared nanocubes are diamond-type pure germanium. Transmission electron microscopy…
Quantum Dots Synthesis And PropertiesMolecular Junctions and NanostructuresNanowire Synthesis and Applications
Luminita Marilena Toma、Rodrigue Lescouëzec、Jacqueline Vaissermann 等 7 位作者2004-12-16New Journal of Chemistry
The preparation, X-ray crystallography and magnetic study of compounds PPh4[Cr(ampy)(CN)4]·H2O (1), PPh4[Cr(phen)(CN)4]·H2O·CH3OH (2), {[Cr(ampy)(CN)4]2Mn(H2O)2}·6H2O (3) and {[Cr(phen)(CN)4]2Mn(H2O)2}·4H2O (4), with PPh4+ = tetraphenylphosphonium cation, ampy = 2-aminomethylpyridine and phen = 1,10-phenanthroline, ar…
Magnetism in coordination complexesLanthanide and Transition Metal ComplexesOrganic and Molecular Conductors Research
Costas Kiparissides、Apostolos Baltsas、Stratos Papadopoulos 等 7 位作者2004-12-16Industrial & Engineering Chemistry Research
A comprehensive mathematical model is developed for the free-radical copolymerization of ethylene with various comonomers (e.g., vinyl acetate, methyl or ethyl acrylate, and acrylic or methacrylic acid) in high-pressure tubular reactors. Polar copolymers usually exhibit lower crystallinity and yield strength than low-…
Phase Equilibria and ThermodynamicsProcess Optimization and IntegrationThermal and Kinetic Analysis
Thomas S. Key、Buckley Crist2004-12-16Journal of the American Ceramic Society
Alumina‐rich mixtures of La 2 O 3 and Al 2 O 3 have equilibrium phases that are perovskite (LaAlO 3 ) and β‐alumina (LaAl 11 O 18 ). Annealing initially glassy samples with compositions 3La 2 O 3 –5Al 2 O 3 or 11La 2 O 3 –14Al 2 O 3 between 860° and 1075°C creates a metastable state that is clearly detected by X‐ray d…
Ferroelectric and Piezoelectric MaterialsGlass properties and applicationsMicrowave Dielectric Ceramics Synthesis
Wakao Fukuda、Yulia Sari Ismail、Toshiaki Fukui 等 5 位作者2004-12-16Archaea
Although the interconversion between C4 and C3 compounds has an important role in overall metabolism, limited information is available on the properties and regulation of enzymes acting on these metabolites in hyperthermophilic archaea. Malic enzyme is one of the enzymes involved in this interconversion, catalyzing th…
Bacterial Genetics and BiotechnologyEnzyme Structure and FunctionAmino Acid Enzymes and Metabolism
A. Singh、Y. Lee、Walter J. Dressick2004-12-16Advanced Materials
Cotton threads bearing adsorbed branched polyethylenimine–organophosphorous hydrolase (BPEI/OPH) multilayers are woven into cotton cloth (CC) that actively hydrolyzes methyl parathion (MPT) in solution to p-nitrophenol (PNP) over several weeks. These results form the basis for smart fabrics capable of remediation of e…
Microplastics and Plastic PollutionPolymer Surface Interaction StudiesPesticide and Herbicide Environmental Studies
Yunle Gu、Luyang Chen、Yitai Qian 等 5 位作者2004-12-16Journal of the American Ceramic Society
Nanocrystalline boron carbide (B 4 C) was synthesized via a solvothermal reduction of carbon tetrachloride using metallic lithium as reductant in the presence of amorphous boron powder at 600°C in an autoclave. The X‐ray diffraction pattern of the product powder was indexed to the hexagonal B 4 C phase, with lattice c…
Advanced ceramic materials synthesisDiamond and Carbon-based Materials ResearchBoron and Carbon Nanomaterials Research
K. Ravichandran、N. Natchimuthu2004-12-16Polymer International
Abstract Scrap rubber recycling combined with waste leather particles in natural rubber compounds has been studied. The effect of leather and scrap rubber loading on vulcanization characteristics of natural rubber compounds has been evaluated. The presence of leather was found to reduce the scorch time and increase th…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesNatural Fiber Reinforced Composites
Mamata Pradhan、Parag Bhargava2004-12-16Journal of the American Ceramic Society
Ceramic foams with porosity exceeding 90% were prepared by direct foaming and casting of aqueous suspensions containing cetyl trimethyl ammonium bromide (CTAB) as a foaming agent. Foaming of the suspensions, particularly with lower viscosity, was initially non‐homogeneous but the foam appeared to homogenize with milli…
Catalysis and Hydrodesulfurization StudiesPickering emulsions and particle stabilization
Gary D. Roberts、J. Michael Pereira、Duane M. Revilock 等 6 位作者2004-12-16Journal of Aerospace Engineering
Impact tests using a soft gelatin projectile were performed to identify failure modes that occur at high strain energy density during impact loading. Failure modes were identified for aluminum plates and for composites plates and half-rings made from triaxial carbon fiber braid having a 0∕±60° architecture. For alumin…
Energetic Materials and CombustionHigh-Velocity Impact and Material BehaviorStructural Response to Dynamic Loads
Maryna Ornatska、Sergiy Peleshanko、B Rybak 等 5 位作者2004-12-16Advanced Materials
One-dimensional supramolecular structures self-assemble from irregular, highly branched, flexible amphiphiles containing a polyester core and an alkyl- or anthracene-functionalized shell. A combination of intermolecular interactions and steric limitations cause the structures to form nearly perfectly organized microfi…
Luminescence and Fluorescent MaterialsSupramolecular Self-Assembly in MaterialsDendrimers and Hyperbranched Polymers
Masaru Yao、Yuko Iwamura、Hidenari Inoue 等 4 位作者2004-12-16Langmuir
Five amphiphilic meso-disubstituted porphyrins bearing one polar group were synthesized, and their monolayer films were prepared. Their limiting molecular areas obtained from pi-A isotherms were 0.5-0.6 nm2, which were smaller than those of the corresponding meso-tetrasubstituted porphyrins. At the air-water interface…
Porphyrin and Phthalocyanine ChemistryPhotochemistry and Electron Transfer StudiesLuminescence and Fluorescent Materials
Gregory N. Morscher、Hee Mann Yun、James A. DiCarlo2004-12-16Journal of the American Ceramic Society
The occurrence of matrix cracks in melt‐infiltrated SiC/SiC composites with a three‐dimensional (3D) orthogonal architecture was determined at room temperature for specimens tested in tension parallel to the Y ‐direction (perpendicular to Z ‐bundle weave direction). The fiber types were Sylramic and Sylramic‐iBN in th…
Advanced ceramic materials synthesisMechanical Behavior of CompositesAluminum Alloys Composites Properties
Veena Tikare、Michael Braginsky、Eugene A. Olevsky 等 4 位作者2004-12-16Journal of the American Ceramic Society
Microstructural evolution during simple solid‐state sintering of two‐dimensional compacts of elongated particles packed in different arrangements was simulated using a kinetic, Monte Carlo model. The model used simulates curvature‐driven grain growth, pore migration by surface diffusion, vacancy formation, diffusion a…
Advanced ceramic materials synthesisAluminum Alloys Composites PropertiesInjection Molding Process and Properties
M. Luisa Ferrer、Francisco del Monte2004-12-16The Journal of Physical Chemistry B
Highly fluorescent Nile Red (NR) nanoparticles embedded in a hybrid sol-gel glass are reported. The crystallite growth within the confined system created by the porous hybrid matrix results in NR nanoparticles of averaged dimensions below 36 nm. The preparation process allows for the control of both the conformation a…
Quantum Dots Synthesis And PropertiesPorphyrin and Phthalocyanine ChemistryLuminescence and Fluorescent Materials
Lotfi Bessais、E. Dorolti、C. Djéga‐Mariadassou2004-12-16Journal of Applied Physics
We have shown that the out-of-equilibrium hexagonal P6∕mmm phase adopts the stoichiometry Sm(Fe,Ga)9 in the Sm–Fe–Ga system. X-ray diffraction analysis has been combined with Mössbauer spectrometry. A specific program for the Wigner–Seitz cell (WSC) volume calculation of the equilibrium and of the metastable structure…
Magnetic properties of thin filmsMagnetic Properties and ApplicationsMagnetic Properties of Alloys
Guillem Aromı́、Joshua Telser、Andrew Ozarowski 等 6 位作者2004-12-16Inorganic Chemistry
The complex [Mn(dbm)(2)(py)(2)](ClO(4)) (dbm = anion of 1,3-diphenyl-1,3-propanedione (dibenzoylmethane), py = pyridine) was synthesized and characterized by X-ray crystallography. It has tetragonally distorted geometry with the axial positions occupied by the py ligands and the equatorial positions by the dbm ligands…
Metal complexes synthesis and propertiesMagnetism in coordination complexesLanthanide and Transition Metal Complexes