David Metcalf、James P. Bolender、Michael S. Driver 等 4 位作者1993-01-01The Journal of Physical Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChiral discrimination in electronic energy transfer between dissymmetric lanthanide(III) and cobalt(III) complexes in solution: effects of ligand size, shape, and configuration in the acceptor complexesDavid H. Metcalf, James P. Bolender, Michael S. Driver, and F. S. Richard…
Metal complexes synthesis and propertiesLanthanide and Transition Metal ComplexesElectrochemical Analysis and Applications
Ran Tu、Chunhua Lu、K Thyagarajan 等 8 位作者1993-01-01Journal of Biomedical Materials Research
A new biomaterial has been developed by fixing native collagen with a polyepoxy compound (PC) fixative. In this study, bovine internal thoracic arteries were fixed with PC under various conditions to help understand the kinetics of the collagen-PC reactions and optimize the fixation process. At predetermined time inte…
Orthopaedic implants and arthroplastyElectrospun Nanofibers in Biomedical ApplicationsCollagen: Extraction and Characterization
D.J. Ilett、M. Saiful Islam1993-01-01Journal of the Chemical Society Faraday Transactions
Atomistic computer simulation techniques are used to investigate the role of key defect and transport properties of La2O3 that may be involved in the catalytic activity. The theoretical techniques are based upon efficient energy minimization procedures and Mott–Littleton methodology for accurate defect modelling. The…
Catalytic Processes in Materials ScienceCatalysis and Oxidation ReactionsElectronic and Structural Properties of Oxides
Akihiko Toda1993-01-01Faraday Discussions
The growth kinetics and morphology of polyethylene single crystals of a narrow molecular mass fraction (Mw= 1.36 × 104 and Mw/Mn= 1.19) have been studied. Single crystals extracted from the melt show two types of curved lateral habit: a lenticular shape elongated in the direction of the b-axis and a truncated lozenge…
Polymer crystallization and propertiesMaterial Dynamics and PropertiesRheology and Fluid Dynamics Studies
Gerhard Pfaff1993-01-01Journal of Materials Chemistry
The strontium titanates SrTiO3, Sr2TiO4, Sr3Ti2O7 and Sr4Ti3O10 can be synthesized by a sol–gel method at low temperatures. The reaction between strontium acetate solution and titanium(IV) isopropoxide leads to the formation of strontium titanate gels. The gels can be converted to the strontium titanates by drying and…
Ferroelectric and Piezoelectric MaterialsMicrowave Dielectric Ceramics SynthesisElectronic and Structural Properties of Oxides
Nina Aas、Michael Bowker1993-01-01Journal of the Chemical Society Faraday Transactions
The adsorption and decomposition of acetic acid has been studied on Pd(110) using temperature-programmed desorption (TPD). On the clean surface, the acid dissociates to form a stable acetate, and hydrogen is desorbed at 300 K. Some of the acetate then decomposes at around 353 K to yield CO2 and H2 into the gas phase a…
Advanced Chemical Physics StudiesCatalytic Processes in Materials ScienceCatalysts for Methane Reforming
K. Beilenhoff、Harald Klingbeil、W. Heinrich 等 4 位作者1993-01-01IEEE Transactions on Microwave Theory and Techniques
Coplanar MMIC stub configurations are investigated by means of the finite-difference method in the frequency domain. The open end, the short end, and a capacitively loaded short end (MIM-short) are analyzed. Their parasitic effects are described in terms of the effective length extension l/sub ext/. The influence of t…
Radio Frequency Integrated Circuit DesignMicrowave Engineering and WaveguidesCopper Interconnects and Reliability
Т. П. Шахтшнейдер、В. В. Болдырев1993-01-01Drug Development and Industrial Pharmacy
The effect of mechanical treatment in a planetary ball mill on the transformations of polymorphs of sulfathiazole were studied by means of X-ray diffraction analysis, infrared spectroscopy and differential scanning calorimetry. It has been shown that mechanical treatment initiates transitions of sulfathiazole polymorp…
Crystallography and molecular interactionsEnergetic Materials and CombustionCrystallization and Solubility Studies
P Garrou、R.H. Heistand、Mitchell G. Dibbs 等 10 位作者1993-01-01IEEE Transactions on Components Hybrids and Manufacturing Technology
The feasibility of rapid thermal curing (RTC) of benzocyclobutene (BCB) thin films using an infrared belt furnace is demonstrated. The effects on film properties resulting from a dramatic reduction in cure time (5 h to 5 min) are summarized. The extent of cure was determined by Fourier-transform infrared (FTIR) method…
Epoxy Resin Curing ProcessesSynthesis and properties of polymersPhotopolymerization techniques and applications
C. Liang、C. A. Rogers1993-01-01Journal of vibration and acoustics
Shape memory alloys (SMAs) have several unique characteristics, including their Young’s modulus-temperature relations, shape memory effects, and damping characteristics. The Young’s modulus of the high-temperature austenite of SMAs is about three to four times as large as that of low-temperature martensite. Therefore,…
Shape Memory Alloy Transformations
Sanqi Yang、Jenn‐Ming Wu1993-01-01Journal of the American Ceramic Society
Characteristics of the sintered compacts and the microstructures and electrical properties of Nb‐doped TiO 2 varistors with added Ba and Bi were studied at various sintering temperatures ranging from 1250° to 1400°C. Adding both Ba and Bi to Nb‐doped TiO 2 ceramics resulted in a maximum intergranular phase and a minim…
ZnO doping and propertiesGas Sensing Nanomaterials and SensorsDielectric properties of ceramics
R. J. Van Brunt、E.W. Cernyar、P. von Glahn1993-01-01IEEE Transactions on Electrical Insulation
The significance of memory propagation in controlling the stochastic behavior of partial-discharge phenomena is demonstrated by determination of various conditional amplitude and phase-of-occurrence distributions for both measured and simulated discharge pulses. A system that can be used to measure directly a set of b…
High voltage insulation and dielectric phenomenaLightning and Electromagnetic PhenomenaPower Transformer Diagnostics and Insulation
P.A. Stolk、Albert Polman、W.C. Sinke1993-01-01Physical review. B, Condensed matter
The crystallization rate of liquid silicon has been measured during epitaxial explosive crystallization of amorphous silicon. The measurements, together with numerical temperature calculations indicate that freezing in silicon saturates at 15.8 m/s for large undercooling (>130 K) below the equilibrium melting tempe…
Material Dynamics and PropertiesThin-Film Transistor TechnologiesMetallic Glasses and Amorphous Alloys
Xueping Xu、D. Wayne Goodman1993-01-01The Journal of Physical Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructural and chemisorptive properties of model catalysts: copper supported on silica thin filmsXueping Xu and D. W. GoodmanCite this: J. Phys. Chem. 1993, 97, 3, 683–689Publication Date (Print):January 1, 1993Publication History Published online1 May 2002Published inissue…
Electrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceMesoporous Materials and Catalysis
A. Robert Hillman、Stanley Bruckenstein1993-01-01Journal of the Chemical Society Faraday Transactions
A model involving the transport of mobile species and film structure relaxation processes is developed for redox switching of permselective electroactive polymer films. Free-energy profiles for such systems show that a variety of pseudo-equilibrium (metastable) states may be populated. The initial polymer film state i…
Conducting polymers and applicationsElectrochemical Analysis and ApplicationsAnalytical Chemistry and Sensors
Emad Eldin Hassan、James M. Gallo1993-01-01Journal of drug targeting
A magnetic cationic microsphere delivery system, prepared from the polysaccharide chitosan and containing oxantrazole (OX), was examined for its ability to enhance brain delivery of OX compared to administration of OX in solution (OX-S). Magnetic chitosan microspheres containing OX (MCM-OX) and OX-S were administered…
Nanoparticle-Based Drug DeliveryAdvanced Drug Delivery SystemsNeuroscience and Neural Engineering
James M. Howe1993-01-01International Materials Reviews
The fracture behaviour of metal/ceramic interfaces is reviewed. It is shown that fracture is a complicated process which depends on many factors such as the geometry of the test specimen and loading conditions, strength of the interfacial bond, thermal, elastic, and fracture properties of the metal and ceramic, thickn…
Advanced ceramic materials synthesisNumerical methods in engineeringAluminum Alloys Composites Properties
R. B. Ramgulam、J. Amirbayat、I. Porat1993-01-01Journal of the Textile Institute
The paper describes the application of laser triangulation to the grading of fabric pilling. Part II goes further to compare the experimental results with the corresponding gradings as assessed by a panel of experts.
Optical measurement and interference techniquesTextile materials and evaluationsSurface Roughness and Optical Measurements
Juergen Koening、Christoph Boettcher、Hanspeter Winkler 等 6 位作者1993-01-01Journal of the American Chemical Society
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMagic angle (54.7.degree.) gradient and minimal surfaces in quadruple micellar helicesJuergen Koening, Christoph Boettcher, Hanspeter Winkler, Elmar Zeitler, Yeshayahu Talmon, and Juergen Hinrich FuhrhopCite this: J. Am. Chem. Soc. 1993, 115, 2, 693–700Publication Date (Prin…
Supramolecular Self-Assembly in Materials
G. Subhash、Sia Nemat‐Nasser1993-01-01Journal of the American Ceramic Society
Transformation plasticity in Mg‐PSZ and Y‐TZP ceramics is investigated using a novel stress reversal Hopkinson bar technique recently developed at the University of California–San Diego (UCSD) for dynamic recovery experiments. 1 The longitudinal and transverse strains are measured by strain gauges mounted on the speci…
Advanced ceramic materials synthesisHigh-Velocity Impact and Material BehaviorAdvanced materials and composites