Michael Berkei、Eduard Bernhardt、Markus Schürmann 等 5 位作者2002-08-01Zeitschrift für anorganische und allgemeine Chemie
Die Reaktion von Hg(NO3)2 mit K[B(CN)4] führt zu Hg[B(CN)4]2 (1). Eine Komproportionierungsreaktion von 1 mit elementaren Quecksilber liefert das entsprechende Quecksilber(I)-Salz Hg2[B(CN)4]2 (2). Die Charakterisierung von 1 und 2 erfolgt anhand von Schwingungsspektren, 13C- und 11B-NMR-Spektren sowie der Auswertung…
Organic and Molecular Conductors ResearchOrganometallic Compounds Synthesis and CharacterizationInorganic Chemistry and Materials
Briain D. MacNeill、Irina Pomerantseva、Harry C. Lowe 等 5 位作者2002-08-01Vascular Medicine
Strategies to treat atherosclerotic coronary artery disease include coronary artery bypass grafting (CABG), in which grafts are used to bypass atherosclerotic vessels and restore blood flow to the ischemic myocardium. The grafts used include healthy arteries or veins harvested from a separate site. Results with arteri…
Mesenchymal stem cell researchElectrospun Nanofibers in Biomedical ApplicationsTissue Engineering and Regenerative Medicine
Jonas I. Goldsmith、Kazutake Takada、Héctor D. Abruña2002-08-01The Journal of Physical Chemistry B
The diffusion coefficients of polyamidoamine (PAMAM) dendrimers (generations 0−4) surface-modified with terpyridyl and bipyridyl ruthenium complexes were determined using cyclic voltammetry (CV), voltammetry at a rotating disk electrode (RDE), and pulsed field gradient spin−echo nuclear magnetic resonance (PFGSE-NMR).…
Fuel Cells and Related MaterialsConducting polymers and applicationsDendrimers and Hyperbranched Polymers
Ichiro Yamanaka、Toshihide Hashimoto、Kiyoshi Otsuka2002-08-01Chemistry Letters
Abstract A higher concentration of H2O2 solution (>1 wt%) was catalytically and directly synthesized from O2 and H2 over a [active carbon+vapor-grown-carbon-fiber] cathode by a new type of fuel cell system at 1 atm.
Electrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceCO2 Reduction Techniques and Catalysts
Horst Fischer、Walter Rentzsch、R. Marx2002-08-01Journal of Dental Research
Some technical ceramics exhibit the R-curve effect, i.e., an increasing fracture resistance with crack extension which is a desirable material property because more energy is necessary to propagate a microscopic crack. The objective of this study was to prove whether dental ceramic materials exhibit R-curve behavior.…
Dental materials and restorationsAdvanced ceramic materials synthesisInjection Molding Process and Properties
Martin Schröder、Siegmar Diele、G. Pelzl 等 5 位作者2002-08-01Liquid Crystals
Three phase diagrams of binary systems are presented where one of the mixing components is a bent-core mesogen and the other is a calamitic mesogen. In two of these systems transitions between the ‘banana phase’ B2 and more usual smectic phases in the sequences B2-SmA, B2-SmC, B2-SmC-SmA, B2-SmC-SmA-N could be observe…
Liquid Crystal Research AdvancementsPlant Diversity and EvolutionPlant Reproductive Biology
Tigran S. Kurtikyan、Garik G. Martirosyan、Ivan M. Lorković 等 4 位作者2002-08-01Journal of the American Chemical Society
The interactions of nitric oxide gas with thin layers of Fe(II)(TPP) and Ru(II)(TPP), obtained by sublimation onto low-temperature substrate (77 K), has been investigated by means of IR spectroscopy (TPP = meso-tetraphenylporphyrinate). Only simple addition of NO to form Fe(TPP)(NO) is observed for the iron-porphyrin…
Nitric Oxide and Endothelin EffectsPorphyrin and Phthalocyanine ChemistryHemoglobin structure and function
R. Torsten Clay、S. Mazumdar、David Campbell2002-08-01Journal of the Physical Society of Japan
We investigate theoretically charge ordered states on the anisotropic triangular lattice characteristic of the theta-(BEDT-TTF)_2 X materials. Using exact diagonalization studies, we establish that the charge order (CO) pattern corresponds to a ``horizontal'' stripe structure, with ...1100... CO along the two directio…
Magnetism in coordination complexesOrganic and Molecular Conductors ResearchN-Heterocyclic Carbenes in Organic and Inorganic Chemistry
P.A. Rolland、Keith Dicks、R. Ravel-Chapuis2002-08-01Microscopy and Microanalysis
P Rolland, K Dicks, R Ravel-Chapuis; EBSD Spatial Resolution in the SEM when Analyzing Small Grains or Deformed Material, Microscopy and Microanalysis, Vol
Advanced Electron Microscopy Techniques and ApplicationsElectron and X-Ray Spectroscopy TechniquesIon-surface interactions and analysis
Sami Valkama、Juha Hartikainen、Mika Torkkeli 等 8 位作者2002-08-01Macromolecular Symposia
Comb-shaped supramolecules are constructed using flexible polymers and semi-rigid conjugated undoped or doped conjugated polymers upon complexing Zinc dodecyl benzene sulphonate, Zn(DBS)2. Selforganized nanostructures are formed in the bulk due to competing attractive interactions (coordination or water mediated hydro…
Conducting polymers and applicationsAnalytical Chemistry and SensorsSynthesis and properties of polymers
Kentaro Ochiai、Axel Klix、Jun-ichi Hori 等 6 位作者2002-08-01Journal of Nuclear Science and Technology
To improve the nuclear performance of fusion breeding blankets, the application of thermal type blankets with 6Li-enriched ceramics and low-activation ferritic steel is suggested. However, appropriate neutronics experiments to investigate the nuclear performance of such blankets have never been carried out. Therefore,…
Fusion materials and technologiesNuclear reactor physics and engineeringNuclear Physics and Applications
A. Zalar、J. van Lier、E. J. Mittemeijer 等 4 位作者2002-08-01Surface and Interface Analysis
Abstract Early‐stage interfacial reactions were studied in three different heat‐treated oxide/metal bilayers (the oxide is amorphous (a) TiO 2 and the metal is crystalline (c) Ti, c‐Ti 3 Al or amorphous a‐TiAl) by means of Auger electron spectroscopy (AES) depth profiling. The oxide/metal bilayers were sputter deposit…
Catalytic Processes in Materials ScienceMetal and Thin Film MechanicsIntermetallics and Advanced Alloy Properties
Byung Ho Lee、James L. White2002-08-01Polymer Engineering and Science
Abstract The synthesis of polyetheramide, containing poly(tetramethylene ether) (PTMEG) as the soft segment phase and polylactams as the hard phase was carried out in a Leistritz modular intermeshing counter‐rotating twin‐screw extruder in a one‐step, solvent‐free process. No by‐product such as carbon dioxide or H 2 O…
biodegradable polymer synthesis and propertiesCarbon dioxide utilization in catalysisSynthesis and properties of polymers
Haihua Yang、Jinghong Ma、Wengang Li 等 5 位作者2002-08-01Polymer Engineering and Science
Abstract Reactive blending of poly(ethylene terephthalate)/poly(ethylene naphthalene 2,6dicarboxylate) with addition of 2,2'‐bis(1,3‐oxazoline) (BOZ) has been studied under various mixing conditions for the different compositions. The transesterification level, the sequence length of both PET and PEN short blocks, and…
Polymer crystallization and propertiesPolymer Nanocomposites and Propertiesbiodegradable polymer synthesis and properties
M. Kurth、P. C. J. Graat2002-08-01Surface and Interface Analysis
Abstract X‐ray photoelectron spectra of free‐electron metals such as magnesium and aluminium contain pronounced electron energy‐loss peaks due to plasmon excitations. Part of the intensity contained in these plasmon peaks is of an intrinsic nature. In this work a procedure is presented that allows the determination of…
Corrosion Behavior and InhibitionX-ray Spectroscopy and Fluorescence AnalysisElectron and X-Ray Spectroscopy Techniques
Alexander V. Tavrov2002-08-01Optical Engineering
Universita¨t StuttgartInstitut fu¨r Technische OptikPfaffenwaldring 970569 Stuttgart, DeutschlandE-mail: tavrov@ito.uni-stuttgart.deAbstract. The signal-to-noise ratio required to obtain 10-nm accuracy inthe measurement of lateral position is studied with an interference mi-croscope. Evaluations are performed using th…
Optical measurement and interference techniquesAdvanced Measurement and Metrology TechniquesOptical Coatings and Gratings
I. M. Krygin、A. D. Prokhorov、V. Dyakonov 等 5 位作者2002-08-01Physics of the Solid State
The spin-spin interaction of Dy3+ ions in a KY(WO4)2 single crystal is investigated by electron paramagnetic resonance (EPR) spectroscopy at a temperature of 4.2 K and a frequency of 9.2 GHz. The EPR spectra of ion pairs located in different coordination shells are analyzed. It is revealed that the considerable contri…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsTheoretical and Computational Physics
Peter Waldner、Herbert Ipser2002-08-01International Journal of Materials Research (formerly Zeitschrift fuer Metallkunde)
Abstract The complete nickel-indium system was thermodynamically assessed at a total pressure of 1 bar from room temperature up to liquidus temperatures. The Gibbs energies of five condensed soluti...
Electronic Packaging and Soldering Technologiesnanoparticles nucleation surface interactionsMetallurgical and Alloy Processes
P. Duhaime、P. Mercille、Mitchell Antonine Pineau2002-08-01Mineral Processing and Extractive Metallurgy Transactions of the Institutions of Mining and Metallurgy Section C
Two routes currently exist for the commercial production of primary magnesium: thermal and electrolytic. The electrolytic process accounts for 75% of the Western world's production capacity and this level is expected to increase if known magnesium projects materialize in the near future. Commercial applications of the…
Zeolite Catalysis and SynthesisBauxite Residue and UtilizationMagnesium Oxide Properties and Applications
Ferdinando Bosi、Sergio Lucchesi、A. Della Giusta2002-08-01American Mineralogist
Ten hausmannite crystals (from Ilfeld and Friedrichrode, Harz, Germany), belonging to the (Mn 1-x Zn x )Mn 2 O 4 (0 ≤ x ≤ 0.26) system (I4 1 /amd hausmannite structure type), were characterized by chemical (electron microprobe) and structural (single-crystal X-ray diffractometer) analysis. The prevailing trivalent cat…
Magnetic Properties and Synthesis of FerritesLayered Double Hydroxides Synthesis and ApplicationsMicrowave Dielectric Ceramics Synthesis