Yutaka Imamura、Seiichiro Ten‐no、Kenji Yonemitsu 等 4 位作者1999-10-01The Journal of Chemical Physics
Electronic and geometrical structures of bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF) molecules are studied using ab initio molecular orbital methods. The optimized structure of a BEDT-TTF monomer is close to the experimental one within errors of 0.02 Å and 0.5 deg in bond length and angle, respectively, except th…
Magnetism in coordination complexesMolecular Junctions and NanostructuresOrganic and Molecular Conductors Research
A. L. Johnson、J. T. Bridgham、Thomas E. Jensen1999-10-01Endocrinology
Expression of Bcl-x protein was evaluated in hen ovarian follicles, relative to stage of development, and in cultured granulosa cells after treatment with various apoptosis-suppressing or -inducing agents. Using Western blot analysis, Bcl-X(LONG) was most frequently observed migrating as a doublet with a molecular mas…
Protein Kinase Regulation and GTPase SignalingEnzyme Structure and FunctionAldose Reductase and Taurine
Mingming Geng、Jianwen Han、Feng Feng 等 4 位作者1999-10-01Journal of The Electrochemical Society
The high rate discharge capability of the negative electrode in a Ni/MH battery is mainly determined by the charge transfer process at the interface between the metal hydride (MH) alloy powder and the electrolyte, and the transfer process in the bulk MH alloy powder. In this study, the anodic polarization curves of a…
Fuel Cells and Related MaterialsHydrogen Storage and MaterialsAmmonia Synthesis and Nitrogen Reduction
A. Llobet、J. L. Garcı́a-Muñoz、Carlos Frontera 等 4 位作者1999-10-01Physical review. B, Condensed matter
The structural changes associated with the ferromagnetic (FM)/metallic to antiferromagnetic (AFM)/insulating transition of ${\mathrm{Pr}}_{1/2}{\mathrm{Sr}}_{1/2}{\mathrm{MnO}}_{3} (I4/mc\stackrel{\ensuremath{\rightarrow}}{m}{P2}_{1}/n)$ are described in detail. Based on high-resolution neutron-diffraction data, in th…
Magnetic and transport properties of perovskites and related materialsRare-earth and actinide compoundsAdvanced Condensed Matter Physics
Steven Manning、Robert B. Moore1999-10-01Polymer Engineering and Science
Abstract Blends of polypropylene and polyamide‐6,6 have compatibilized with polypropylene that was carboxylated through a reactive extrusion process with an asymmetric functional peroxide. The compatibilized blends demonstrated a finely dispersed minor phase as shown by SEM. Because of the enhanced dispersion, additio…
Polymer crystallization and propertiesPolymer Nanocomposites and Propertiesbiodegradable polymer synthesis and properties
Chang Kyu Park、Tae Jin Kang1999-10-01Textile Research Journal
A quantitative method for evaluating seam pucker in garment manufacturing is devel oped from three-dimensional image analysis using artificial intelligence. A laser scanning system created with a specially designed laser sensor measures the surface profile of seam pucker. Since the conventional AATCC rating system is…
Optical measurement and interference techniquesTextile materials and evaluationsIndustrial Vision Systems and Defect Detection
Sandeep Kumar、M. Manickam、Venkatachalapathy S. K. Balagurusamy 等 4 位作者1999-10-01Liquid Crystals
Functionalization of triphenylene-based discotic liquid crystals by direct nitration of hexaalkoxytriphenylene has very recently been reported to produce exclusively the mononitrohexaalkoxytriphenylene. W e have found that nitration of such discotics is not restricted to only one ring of triphenylene, but all the thre…
Organic Electronics and PhotovoltaicsLiquid Crystal Research AdvancementsSynthesis and Properties of Aromatic Compounds
Hiromitsu Kozuka、Masahiro Kajimura1999-10-01Chemistry Letters
Abstract BaTiO3 coating films were prepared from Ba(CH3COO)2-Ti(OC3H7i)4-H2O-CH3COOH-C3H7i OH solutions containing poly(vinylpyrrolidone) with average molecular weight of 630000. Formation of crack-free BaTiO3 films 1.2 μm in thickness was successfully achieved via single-step, non-repetitive dip-coating. The film had…
Metal and Thin Film MechanicsPolymer Surface Interaction StudiesDendrimers and Hyperbranched Polymers
Feng Fei Liang、Youqi Wang、Xiuxiu Sun1999-10-01Journal of Polymer Engineering
This paper investigated the curing process and mechanical properties of protein based polymers made from soybeans. Soybean protein isolate mixed with additives was used to fabricate test specimens. First, the flow-curing properties of the soy-protein polymer were examined. Then, a curing procedure was designed based u…
Nanocomposite Films for Food Packagingbiodegradable polymer synthesis and propertiesElectrospun Nanofibers in Biomedical Applications
Lucia Caporaso、Lorella Izzo、Leone Oliva1999-10-01Macromolecules
An experiment was conducted to show the presence of ethylene as catalyst reactivator in the propene-styrene copolymerization. The copolymerizations have been performed by bubbling the gaseous monomers at atmospheric pressure into a flask containing a styrene solution of the prototypical ansa-zirconocene complex rac-(e…
Organometallic Complex Synthesis and CatalysisPolymer crystallization and propertiesAdvanced Polymer Synthesis and Characterization
Kingo Uchida、Go Masuda、Yoshifumi Aoi 等 5 位作者1999-10-01Chemistry Letters
Abstract Tetrathiafulvalene (TTF) derivatives with diarylethene moieties have been synthesized. A derivative having 2,4,5-trimethylthiophene rings as the aryl groups showed photochromism, while a derivative with 2,5-dimethylthiophene rings did not show any color change by UV irradiation. The different reactivity was a…
Porphyrin and Phthalocyanine ChemistryPhotochromic and Fluorescence ChemistryPhotoreceptor and optogenetics research
N. Ishizawa、Yuta Matsushima、Miyuki Hayashi 等 4 位作者1999-10-01Acta Crystallographica Section B Structural Science
The fluorite-related cubic structure of yttria-stabilized zirconia, Zr(0.75)(8)Y(0.24)(2)O(1.87)(9), has been studied by single-crystal X-ray diffraction using synchrotron radiation and by EXAFS. Two diffraction data sets obtained at X-ray energies of 512 and 10 eV below the Y K edge revealed that in the average struc…
Nuclear Materials and PropertiesNuclear materials and radiation effectsX-ray Diffraction in Crystallography
Hung-Kuang Chang、Gerben J. Zylstra1999-10-01Journal of Bacteriology
The ophD gene, encoding a permease for phthalate transport, was cloned from Burkholderia cepacia ATCC 17616. Expression of the gene in Escherichia coli results in the ability to transport phthalate rapidly into the cell. Uptake inhibition experiments show that 4-hydroxyphthalate, 4-chlorophthalate, 4-methylphthalate,…
biodegradable polymer synthesis and propertiesMicrobial Fuel Cells and BioremediationClay minerals and soil interactions
T. F. Stalcup、J. S. Brooks、Robert C. Haddon1999-10-01Physical review. B, Condensed matter
We have studied the time-dependent resistivity of $\ensuremath{\kappa}\ensuremath{-}({\mathrm{B}\mathrm{E}\mathrm{D}\mathrm{T}\ensuremath{-}\mathrm{T}\mathrm{T}\mathrm{F})}_{2}{\mathrm{Cu}[\mathrm{N}(\mathrm{CN})}_{2}]\mathrm{Br},$ a high transition temperature organic superconductor ${(T}_{c}$=11.6 K), in the tempera…
Magnetism in coordination complexesOrganic and Molecular Conductors ResearchN-Heterocyclic Carbenes in Organic and Inorganic Chemistry
Isabel Castro、M. Luisa Calatayud、Jorunn Sletten 等 8 位作者1999-10-01Inorganic Chemistry
The preparation, crystal structures, and variable-temperature magnetic susceptibility data for two dithiosquarate-bridged copper(II) complexes of formulas [Cu(2)(bpca)(2)(1,2-dtsq)(H(2)O)].2H(2)O (1) and [Cu(2)(bpca)(2)(1,3-dtsq)].2H(2)O (2) (where bpca = the bis(2-pyridylcarbonyl)amide anion, 1,2-dtsq = dianion of 3,…
Magnetism in coordination complexesLanthanide and Transition Metal ComplexesOrganometallic Compounds Synthesis and Characterization
Martin Walsh、Gwyndaf Evans、Ruslan Sanishvili 等 5 位作者1999-10-01Acta Crystallographica Section D Biological Crystallography
The multiwavelength anomalous dispersion (MAD) method of protein structure determination is becoming a routine technique in protein crystallography. The increased number of wavelength-tuneable synchrotron beamlines capable of performing challenging MAD experiments, coupled with the widespread availability of charge-co…
Enzyme Structure and FunctionBiochemical and Molecular Research
Isabelle Dez、Joëlle Levalois-Mitjaville、Hansjörg Grützmacher 等 5 位作者1999-10-01European Journal of Inorganic Chemistry
The reaction of hexachlorocyclotriphosphazene with two equivalents of the chelating diols 2,2′-dioxybiphenyl and 2′,2′′-dioxy-1′,1′′-bi-2-naphthyl was investigated. Although a mixture of different stereoisomers may be expected, only the formation of the meso-compounds [(R,S)-(O,O)2Cl2P3N3] is found (O,O stands for the…
Synthesis and characterization of novel inorganic/organometallic compoundsFlame retardant materials and propertiesSynthesis and properties of polymers
I. R. Fisher、M. J. Kramer、T. A. Wiener 等 9 位作者1999-10-01Philosophical Magazine B
Icosahedral Al71Pd21,Mn8 quasicrystals have been grown from the ternary melt via a ‘self-flux’ technique. The nucleation is exceptionally well controlled, and individual grains can have masses of up to almost 30 g (limited only by the dimensions of the growth crucible). The quasicrystals grown by this technique are re…
Quasicrystal Structures and PropertiesMineralogy and Gemology Studies
Johnny C. Ho、H. H. Hamdeh、Michel W. Barsoum 等 4 位作者1999-10-01Journal of Applied Physics
For the binary Ti–Al system, an ordering transformation in Ti3Al has been shown to result in a significant lowering of the electronic heat-capacity coefficient, γ, by removing electrons from conducting states. When γ is normalized to a per Ti atom basis, the same tendency is found in low temperature calorimetric studi…
Advanced ceramic materials synthesisMXene and MAX Phase MaterialsInorganic Chemistry and Materials
M. Montecchi、E. Nichelatti、A. Mancini 等 4 位作者1999-10-01Journal of Applied Physics
The complex refractive index of a LiF crystal surface layer irradiated by low-energy electrons is modified by the stable formation of color centers embedded in it. A simplified dipole-electromagnetic field interaction model has been adopted in order to estimate the dispersion curves of colored LiF from a single optica…
Optical Coatings and GratingsElectron and X-Ray Spectroscopy TechniquesIntegrated Circuits and Semiconductor Failure Analysis