Materials Literature
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In contemporary semiconductor devices speed and functionality depends on signal propagation and, subsequently, on the geometrical design of the device and its material properties. Power dissipation, current leakage, and cross-talk noise are the issues plaguing signal propagation. These issues can be crucial at the dim…
Le but de ce travail est de montrer, dans le cadre de la mecanique de la rupture avec le modele de rupture de Dugdale- Barenblatt, ou de facon plus generale, les modeles de forces cohesives, que les defauts de petite taille devant la longueur caracteristique du materiau ont pratiquement peu d’influence sur les capacit…
During the continuous hot-rolling, the ultimate tensile strength, yielding strength and elongation of the Ti-5Al-1Sn-1Cr-1Fe alloy are in the range of 980~1060MPa, 860~1000MPa and 24-40%, respectively. The main purposes of the present studies are to investigate the effects of heat treatment on the microstructures of t…
Foram produzidos filtros de carvão ativado para redução de hipoclorito em água potável. Sistemas poliméricos compostos por polióxido de etileno como plastificante e poliacrilatos ou poliuretanos como ligantes foram escolhidos para estudar a possibilidade de extrusão destes filtros. Nestes sistemas o ligante permanece…
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Ma Bing for their help, discussion and friendship. I would also like to express my appreciation to the
La caractérisation de la pliabilité \n d'alliage d’aluminium de la série 6xxx a été faite par pliage. Aucun paramètre \n macroscopique s’est révélé satisfaisant. Les mécanismes d’endommagement locaux ont été \n observés à l’EBSD et par mesure de déformation locale. Les tôles s’endommagent par la \n formation d’ondulat…
Investigations on high performance thermoelectric materials have recently been an attractive area of research due to the possibility of using these materials for many potential applications in thermoelectric cooling and thermoelectric power generation. \nThis project focused on the study of CoSb3, which is widely used…
Transparent conductive oxides (TCO) are indispensable as front contact for most of the thin film solar cells. In consideration of low cost and environmental friendliness, aluminum-doped zinc oxide (ZnO:Al) is one of the most suitable TCO candidates. In the present work, thin films of aluminum-doped zinc oxide were pre…
Οι μεμβρανικές πρωτεΐνες επιτελούν μια σειρά από πολύ σημαντικές λειτουργίες, απαραίτητες για την ζωή του κυττάρου, δρώντας ως υποδοχείς, δίαυλοι, αντλίες, ένζυμα και μεταγωγείς ενέργειας καθώς και επιτρέποντας την επικοινωνία μεταξύ κυττάρων και τη συγκόλληση τους. Ταξινομούνται σε δύο μεγάλες κατηγορίες: τις ενσωματ…
Molecular Dynamics simulation is a computer simulation in which particles are allowed to interact for a period of time. It is a specialized discipline of molecular modeling and computer simulation with ergodic hypothesis as the main justification of Molecular Dynamics. In this project, a Molecular Dynamics solver is d…
A bolometric technique has been developed to measure the frequency dependence of the surface resistance, R[sub s], of high temperature superconductor single crystals near IK over the range 0.1 to 20 GHz. This experiment measures the shape of the conductivity spectrum, while also having the sensitivity to measure the r…
In the present paper, press molding for thermo-plastic resin toughened by carbon nanofiber were discussed. Polycarbonate(PC) and vapor grown carbon nanofiber (VGCF) are used for the resin matrix and the reinforcement. In order to investigate and simulate the process molding process of the PC/VGCF composite by finite e…
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Grain growth of nanostructured materials at room or elevated temperature is one of most important problems in the science of nanotechnology. Distribution of second phase particles is one of the most important methods for grain growth inhibition. In this paper a comprehensive study is performed to investigate grain gro…
Characterization of materials used for the fabrication of fuel cell components was made and reported.Electrodes have been designed for the single unit fuel cells and for fuel cell stacks.Designing, of single unit fuel cell was completed by designing the process and hardware of the proton exchange membrane fuel cell (P…
Zinc oxide (ZnO) wire was synthesized by hydrothermal method at 70° C by using Zn acetate dihydrate and ammonium hydroxide as the starting material. The sample was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), electron disperse X-ray (EDX), electro diffraction (ED) and transmission elec…
Various research papers have shown that Electrostatic Atomization (EA) is capable of producing monodispersed and self-assembled nanostructures. These provided a platform for future exploration of its potential in creating a monodispersed SWCNTs based channel for transistor. In this report, the novel deposition of vary…
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The technique of oblique angle deposition provides a convenient and inexpensive new way of fabricating nanostructured metal coatings on the tips of standard silica optical fibres. These fibres demonstrate excellent sensing capabilities in both direct and remote sensing configurations, based on Surface-enhanced Raman s…