A.E. Goeta、Judith A. K. Howard、Davide Maffeo 等 6 位作者2000-01-01Journal of the Chemical Society Dalton Transactions
The regioselective synthesis of the new N,N′-dialkylated tetraazamacrocycle 1,11-bis(2-pyridylmethyl)-1,4,8,11-tetraazacyclotetradecane, L1, has been achieved. The copper(II) complexes of L1 and of the isomeric ligand 1,8-bis(2-pyridylmethyl)-1,4,8,11-tetraazacyclotetradecane, L2, have been isolated and their crystal…
Supramolecular Chemistry and ComplexesMagnetism in coordination complexesLanthanide and Transition Metal Complexes
Y. Badr、Z. I. Ali、A?H Zahran 等 4 位作者2000-01-01Polymer International
The effect of gamma radiation on the thermal behavior and crystalline structure of low density polyethylene (LDPE) has been investigated using differential scanning calorimetry (DSC) and X-ray diffraction techniques (XRD). Gamma irradiation was carried out in atmospheric air to a maximum dose of 883 kGy. DSC results o…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesPolymer Nanocomposite Synthesis and Irradiation
Milan Laz�r、L'udmila Hr??kov�、Eberhard Borsig 等 6 位作者2000-01-01Journal of Applied Polymer Science
In the investigation of the course of degradation and build-up reactions during the decomposition of the tert-butyl perbenzoate (TBPB) (at eight different concentrations) in isotactic polypropylene (iPP), it was found that, at the beginning of the peroxide decomposition at all investigated peroxide concentrations from…
Polymer crystallization and propertiesbiodegradable polymer synthesis and propertiesPolymer Science and PVC
Hamilton Varela、Roberto M. Torresi2000-01-01Journal of The Electrochemical Society
Polyaniline films in nonaqueous media, mainly propylene carbonate and acetonitrile, are studied by using simultaneous potentio‐dynamic experiments with the electrochemical quartz crystal microbalance and electrochemical impedance spectroscopy. The role of ionic transport and solvent participation during redox reaction…
Fuel Cells and Related MaterialsConducting polymers and applicationsAnalytical Chemistry and Sensors
Shouguo Wang、Kebin Li、Zhixiang Chen 等 4 位作者2000-01-01Physical review. B, Condensed matter
The electrical resistivity, magnetization, thermoelectric power, and specific heat have been studied on a series of Zn-doped polycrystalline samples ${\mathrm{Fe}}_{1\ensuremath{-}x}{\mathrm{Zn}}_{x}{\mathrm{Cr}}_{2}{\mathrm{S}}_{4}$ $(0<~x<~0.75)$ with a spinel structure over a wide range of composition and tem…
Magnetic and transport properties of perovskites and related materialsMultiferroics and related materialsAdvanced Condensed Matter Physics
R.L. Spyker、R.M. Nelms2000-01-01IEEE Transactions on Industry Applications
The double-layer capacitor was developed in the late 1960s by SOHIO Corporation, with further development continued by NEC and Matsushita in Japan. In 1978, a commercial product was introduced by Matsushita, the Panasonic Gold capacitor. This technological advancement has mainly been applied in computer memory backup…
Supercapacitor Materials and FabricationAdvanced Sensor and Energy Harvesting MaterialsAdvanced Battery Technologies Research
Michael Buback、Johannes Sandmann2000-01-01Zeitschrift für Physikalische Chemie
The thermal decomposition in solution of
Inorganic and Organometallic ChemistryThermal and Kinetic AnalysisChemical Thermodynamics and Molecular Structure
Beulah J.M. Rajkumar、V. Ramakrishnan2000-01-01Journal of Raman Spectroscopy
A comparative study of the infrared and Raman spectra of L-valine nitrate and L-leucine nitrate helps in determining the role of hydrogen bonds in these crystals. Both compounds have carboxylic and protonated amino groups in the cation while the nitrate ion forms the anion. The wavenumbers of several modes of vibratio…
Nonlinear Optical Materials ResearchSolid-state spectroscopy and crystallographyMolecular spectroscopy and chirality
A. Durmiak2000-01-01IEEE Power Engineering Review
In this letter an approach for fitting saturation characteristic and hysteresis using arctangent functions is presented. It has direct application to modeling transformers and electric machines. The approach is based on measurements of the magnetizing curve of the ferromagnetic material. The analytical form of the cha…
Electric Motor Design and AnalysisMagnetic Properties and ApplicationsNon-Destructive Testing Techniques
S. Salon、Bruce LaMattina、K. Sivasubramaniam2000-01-01IEEE Transactions on Magnetics
This paper describes the modeling of shell type distribution transformers with varying degrees of complexity. Results from several types of studies are reported and used to evaluate the effectiveness of FEA methods for resolving the forces exerted on the coils of a single-phase shell form transformer. The sensitivity…
Magnetic Properties and ApplicationsVibration and Dynamic AnalysisMechanical stress and fatigue analysis
Sung‐Seen Choi2000-01-01Journal of Applied Polymer Science
Since silica has strong filler-filler interactions and adsorbs polar materials, a silica-filled rubber compound has a poor dispersion of the filler and poor cure characteristics. Improvement of the properties of silica-filled styrene-butadiene rubber (SBR) compounds was studied using acrylonitrile-butadiene rubber (NB…
Polymer Nanocomposites and PropertiesSynthesis and properties of polymersSilicone and Siloxane Chemistry
Hans Steffen、Jens Schmidt、Agustı́n R. González-Elipe2000-01-01Surface and Interface Analysis
Although graphitic carbon has been known and used as a biomaterial for a very long time, the excellent biocompatibility of diamond-like carbon (DLC) films has been addressed only in a few cases. We anticipate the combination of bioinert DLC films and surface-immobilized bioactive biomolecules with antithrombogenic pro…
Metal and Thin Film MechanicsDiamond and Carbon-based Materials ResearchPolymer Surface Interaction Studies
Nathali Strekal、Alexandre Maskevich、С. А. Маскевич 等 5 位作者2000-01-01Biopolymers
Annealing of "thick" metal films deposited onto a smooth dielectric substrate leads to high-order self-organization of metal clusters on the film surface. This work presents the first experimental evidence that the "thick" gold film (TGF) may be specifically annealed to serve as a substrate for surface-enhanced fluore…
Gold and Silver Nanoparticles Synthesis and ApplicationsAdvanced biosensing and bioanalysis techniquesNanocluster Synthesis and Applications
J. A. Duffy、Malcolm D. Ingram、Shirley K. Fong2000-01-01Physical Chemistry Chemical Physics
An investigation is made concerning the negatively charged environment, which the oxygen atoms of a glass provide for hosted metal ions, and the extent to which this changes on varying the glass composition. For Mn2+, d–d spectra show that the changes in the (average) oxygen electronic density of the glass are faithfu…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsTransition Metal Oxide Nanomaterials
Stanley Bruckenstein、Krystyna R. Brzezinska、A. Robert Hillman2000-01-01Physical Chemistry Chemical Physics
We describe electrochemical quartz crystal microbalance studies of polypyrrole films exposed to concentrated aqueous sodium tosylate solutions, in which the polymer is non-permselective in doped and undoped redox states at equilibrium. Then, sources and sinks of salt within the film open up new mechanistic possibiliti…
Conducting polymers and applicationsElectrochemical Analysis and ApplicationsAnalytical Chemistry and Sensors
Jui‐Che Lin、Sun-Lee Tiong、Chuh‐Yung Chen2000-01-01Journal of Biomaterials Science Polymer Edition
It is believed that the interactions between the biological environment and biomaterial surface are the key factors influencing its biocompatibility. Therefore, plasma processing, which can vary the surface properties without altering the bulk properties, has been considered as one of the important techniques for impr…
Surface Modification and SuperhydrophobicityMetal and Thin Film MechanicsDiamond and Carbon-based Materials Research
Vincent J. Catalano、Byron L. Bennett、B.C. Noll2000-01-01Chemical Communications
Metallocryptands based on trigonally coordinated Pt(0) or Pd(0) with P2phen [2,9-bis(diphenylphosphino)-1,10-phenanthroline] bind Pb(II) ion through very strong, closed-shell metallophilic interactions; their syntheses, characterization and X-ray crystallography are presented.
Organometallic Complex Synthesis and CatalysisSupramolecular Chemistry and ComplexesMagnetism in coordination complexes
Mitsunori Iwamuro、Yuji Wada、Takayuki Kitamura 等 5 位作者2000-01-01Physical Chemistry Chemical Physics
Photosensitized luminescence in the near-infrared region of five low vibrational β–diketonato neodymium(III) complexes, tris(1,1,1,5,5,5-hexafluoroacetylacetonato)neodymium(III) (1), tris(4,4,5,5,5-pentafluoro-1-pentafluorophenyl-1,3-pentanedionato)neodymium(III) (2), tris(4,4,5,5,6,6,6-heptafluoro-1-pentafluorophenyl…
Luminescence Properties of Advanced MaterialsPhotochemistry and Electron Transfer StudiesLanthanide and Transition Metal Complexes
Francesco Bigoli、P. Cassoux、Paola Deplano 等 8 位作者2000-01-01Journal of the Chemical Society Dalton Transactions
The new unsymmetrical [Bu4N][Ni(Pri2timdt)(dmit)] 4 and [Bu4N][Ni(Pri2timdt)(mnt)] 5 dithiolene complexes (Pri2timdt is the mono-anion of 1,3-diisopropylimidazolidine-2,4,5-trithione; dmit = 2-thioxo-1,3-dithiole-4,5-dithiolate; mnt = maleonitriledithiolate) have been prepared from the reaction of the neutral complex…
Perovskite Materials and ApplicationsMagnetism in coordination complexesOrganic and Molecular Conductors Research
Alain Lapp、H.-G. Kranz2000-01-01IEEE Transactions on Dielectrics and Electrical Insulation
A standardized format for partial discharge (PD) data recorded in gas-insulated switchgear (GIS) was proposed recently by a CIGRE Task Force (15.03.08). Being an open structure, the PD CIGRE data format can be used for all HV apparatus and equipment. Such a format is necessary to process PD measurements from any PD ac…
High voltage insulation and dielectric phenomenaThermal Analysis in Power TransmissionElevator Systems and Control