Frédéric Vitse2002-12-17OhioLink ETD Center (Ohio Library and Information Network)
Under a stratified flow regime and under dewing conditions, internal corrosion can occur at the top of horizontal pipelines.Corrosive gases such as carbon dioxide dissolve in the freshly condensed water on the inner pipewall where continuous injection of inhibitors of corrosion is not possible.In absence of such inhib…
Structural Integrity and Reliability AnalysisEngineering Diagnostics and ReliabilityMaterial Properties and Failure Mechanisms
J.W. Chang、R.S. Gorur2002-12-17OpenAlex
The objectives of this study on silicone rubber materials were: (1) to determine the threshold of low molecular weight (LMW) silicone polymer on the surface needed for hydrophobicity recovery, after it has been temporarily lost due to dry band arcing, and (2) to determine the dominant source of LMW chain regeneration…
High voltage insulation and dielectric phenomenaGa2O3 and related materialsSmart Materials for Construction
I. Alvarez‐Armas、A.F. Armas、S. Hereñú 等 5 位作者2002-12-17Fatigue & Fracture of Engineering Materials & Structures
ABSTRACT Cyclic tests performed in the temperature range 300–773 K on duplex stainless steel DIN 1.4460 show that the cyclic stress–strain behaviour of this steel is strongly temperature dependent. At 300 and 473 K an almost constant peak tensile stress stage, is followed by a slight softening that continues up to fai…
Corrosion Behavior and InhibitionMicrostructure and Mechanical Properties of SteelsHydrogen embrittlement and corrosion behaviors in metals
D. Fournier、C. Dang、L. Paquin2002-12-17OpenAlex
Electrical breakdown at the interface of two dielectric surfaces is a complex phenomenon and is one of the major causes of failure for cable accessories. The dielectric strength of an interface increases with interfacial pressure and is substantially improved by the presence of electrical insulating greases. In order…
High voltage insulation and dielectric phenomenaElectrostatic Discharge in ElectronicsElectrical Fault Detection and Protection
G.C. Montanari、M. Loggini、A. Cavallini 等 4 位作者2002-12-17OpenAlex
A method for compensation of flicker and harmonic distortion in electrical plants supplying arc-furnaces, which consists of the insertion of series inductors and AC harmonic filters, is investigated. For this purpose, a three-phase model of an arc furnace, implemented by EMTP, is provided, where arc-length time variat…
Machine Fault Diagnosis TechniquesPower Quality and HarmonicsMagnetic Properties and Applications
Suha SHIHAB、V. Melik、Liming Zhou 等 5 位作者2002-12-17OpenAlex
Surface flashovers of high voltage insulators occasionally occur in areas where industrial or coastal pollution is present. Particularly they may take place on sites where the level of pollution has been underestimated at the design stage or the equipment and its insulation have not been properly designed for the spec…
High voltage insulation and dielectric phenomenaLightning and Electromagnetic PhenomenaThermal Analysis in Power Transmission
S.Y.R. Hui、Jianguo Zhu2002-12-17OpenAlex
This paper describes the Preisach theory of hysteresis models using a graphical approach. A new simple mathematical function which can relate the Preisach diagrams and the B-H limiting loop is developed and presented. With this new function, the Preisach hysteresis model can be implemented easily without the use of an…
Magnetic properties of thin filmsElectric Motor Design and AnalysisMagnetic Properties and Applications
Adriano Moehlecke、Izete Zanesco、A. Ĺuque2002-12-17OpenAlex
In this paper, we present a practical process to obtain bifacial Si solar cells. These cells are made using p/sup +/nn/sup +/ structure on high-medium base resistivity, continuous emitters and with a process that maintains high bulk minority carrier lifetime. Efficiencies of 19.1% and 18.1% are achieved under standard…
Silicon and Solar Cell TechnologiesSilicon Nanostructures and PhotoluminescenceNanowire Synthesis and Applications
Young Ji Yun、Sun Min Park、Byeang Hyean Kim2002-12-17Chemical Communications
We report on a synthesis of novel thymidine based organogelators and a study of their gelation types in relation to structure and solvent, using various data acquired through FT-IR, SEM images and differential scanning calorimetry.
Lipid Membrane Structure and BehaviorCarbohydrate Chemistry and SynthesisSupramolecular Self-Assembly in Materials
M. Beigert、H.-G. Kranz2002-12-17OpenAlex
This approach describes the destruction free evaluation of the ageing behaviour of polymeric cable insulations using a new dielectric method. Ageing is influenced by electrical, physical, mechanical and morphological properties. All these changes have a strong influence on the residual strength and the lifetime of a p…
High voltage insulation and dielectric phenomenaPower Transformer Diagnostics and InsulationThermal Analysis in Power Transmission
J. Stropp、Gerd Trachta、G. Brehm 等 4 位作者2002-12-17Journal of Raman Spectroscopy
Abstract The drop coating technique was applied to generate thin films of various polymer nanospheres as a basis for the preparation of AgFON (Ag films over nanospheres). In contrast to the well known spin coating technique, the chosen procedure also allows the use of multiwell (microtiter) plates as substrate, thereb…
Gold and Silver Nanoparticles Synthesis and ApplicationsAdvanced biosensing and bioanalysis techniquesBiosensors and Analytical Detection
M. Hoof、R. Pätsch2002-12-17OpenAlex
This paper presents a new method of partial discharge data analysis for the investigation of space charge and degradation phenomena in high voltage insulation systems. The basic principles of the pulse-sequence-analysis are illustrated and the characteristic differences with regard to standard procedures that have bee…
Semiconductor materials and devicesHigh voltage insulation and dielectric phenomenaElectrostatic Discharge in Electronics
I.W. McAllister、G.C. Crichton、A. Pedersen2002-12-17OpenAlex
The accumulation of space charge in solid dielectrics is examined from the macroscopic point of view using electromagnetic field theory. For practical dielectrics, it is shown that the occurrence of such charges is an inherent consequence of a non-uniform conductivity. The influence of both temperature and electric fi…
High voltage insulation and dielectric phenomenaLightning and Electromagnetic PhenomenaPower Transformer Diagnostics and Insulation
Yanbing Wang、Gregory A. Sotzing、R. A. Weiss2002-12-17Chemistry of Materials
Open-cell polyetherurethane foams impregnated with polypyrrole were utilized as amine sensors. These foams were prepared via gas-phase loading of iodine followed by exposure to pyrrole vapor. These foams exhibited reproducible resistance responses upon exposure to triethylamine vapor. Furthermore, the sensor response…
Conducting polymers and applicationsAnalytical Chemistry and SensorsAdvanced Chemical Sensor Technologies
Zhi Liu、Yun Sun、Francisco Machuca 等 6 位作者2002-12-17Journal of Vacuum Science & Technology A Vacuum Surfaces and Films
Chemical cleaning of the GaAs(100) surface has been studied with high-resolution photoemission spectroscopy using synchrotron radiation (in the range of 30–1300 eV) at the Stanford Synchrotron Radiation Laboratory. The high surface sensitivity of the technique has allowed us to identify the chemical state of the surfa…
Semiconductor materials and devicesAdvancements in Photolithography TechniquesElectron and X-Ray Spectroscopy Techniques
Zhihui Yin、Christian Koulic、C. Pagnoulle 等 4 位作者2002-12-17Langmuir
The progress of the interfacial reaction of polystyrene chains end-capped by a primary amine (PS-NH 2 ) and PMMA chains end-capped by an anhydride (PMMA-anh) has been monitored by SEC-UV, by using anthracene-labeled polystyrene chains (anth-PS-NH 2 ) as a probe. Assemblies of an anth-PS-NH 2 layer and a PMMA-anh layer…
Polymer crystallization and propertiesAdvanced Polymer Synthesis and CharacterizationFuel Cells and Related Materials
Mark B. Mitchell、V. N. Sheinker、Aron Tesfamichael 等 5 位作者2002-12-17The Journal of Physical Chemistry B
The adsorption and decomposition reactions of dimethyl methylphosphonate (DMMP) on cerium and iron oxides supported on aluminum oxide have been examined at 25 °C. The capacities of these solids for the decomposition of DMMP have been measured, and the identities and amounts of the decomposition products determined. Th…
Catalytic Processes in Materials ScienceRadioactive element chemistry and processingThermal and Kinetic Analysis
Ningyi Dai、F.C. Lee2002-12-17OpenAlex
An analysis of the edge effect in high-frequency transformers is performed by modeling the winding as either all-foil or wire-foil. The effects of the winding positions in the core and the winding widths on the AC resistance and leakage inductance of the transformer are investigated by using the two-dimensional finite…
Silicon Carbide Semiconductor TechnologiesMagnetic Properties and ApplicationsInduction Heating and Inverter Technology
Michael S. Watson、Martin J. Whitaker、Steven M. Howdle 等 4 位作者2002-12-17Advanced Materials
A very clean route to porous materials , utilizing the combination of conventional solution and supercritical fluid processing, is exploited to prepare porous tissue engineering scaffolds that contain biologically active material for controlled release. This allows accurate dosing of the biological agent, whilst retai…
Phase Equilibria and ThermodynamicsPolymer Foaming and Composites
S. Valızadeh、Lars Hultman、J.-M. George 等 4 位作者2002-12-17Advanced Functional Materials
Abstract The electrochemical deposition of Au/Co multilayers into 20 μm‐thick ion track etched polycarbonate membranes with pore diameters of 110–150 nm was studied in a single electrolyte containing cobalt sulfate, gold cyanide, and citric acid. Cyclic voltammetry, chronoamperometry, and pulse‐potential experiments w…
Electrocatalysts for Energy ConversionSemiconductor materials and devicesAnodic Oxide Films and Nanostructures