Materials Literature
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Restoration of working capacity of details of cars and the equipment by means of polymeric composite materials finds the increasing application in the service enterprises, owing to simplicity and availability of technologies of their application. The analysis of properties of glutinous structures and studying of domes…
La sintesis de nanoparticulas de oxido de hierro, soportadas sobre aluminosilicatos mesoporosos del tipo MCM-41 y SBA-15, asistida por microondas se muestra como una via interesante para la deposicion de nanoparticulas en materiales porosos ya que permite controlar los parametros de la irradiacion con microondas y el…
Thin solid films were extensively used in the making of solar cells, cutting tools, magnetic recording devices, etc. As a result, the accurate measurement of mechanical properties of the thin films, such as hardness and elastic modulus, was required. The thickness of thin films normally varies from tens of nanometers…
β‐Ga2O3 nanostructures on a large scale were fabricated on the Silicon substrate via vapor transport method in nitrogen ambient. The growth was carried out in a tube furnace with Ga metal and Ga2O3 powder serving as the source materials. The as synthesized products were characterized by GIXRD, SEM, HRTEM and room temp…
This thesis presents wheat gluten foams as an alternative to the available commercialfoams. Polymeric foams, like all plastics, are mostly made from petroleum, and this isaffecting the environment negatively with the emission of greenhouse gases and generation oflandfills. During the past decades, there has been a dri…
Here are some results of changes in physical-mechanical and barrier properties of cellulose and paper material for surface treatment of the melting polyethylene. Analyze showed the influence of the electrets state of laminated corrugated board for the strength of quality indicators. There are an explanations the obser…
The performance of the CeO2-based composite anodes depends on microstructural features such as particle size, tripe phase boundaries (TPB), surface area, and percolation. To improve the performance ...
The results of experimental estimate of propylene-ethylene block copolymer on titanium-magnesium catalyst in respect to process flowsheet of polypropylene manufacturing have been introduced. The conditions of synthesis and properties of the produced polymers were given. The possibility in principle of manufacturing wa…
A series of 1,2-bisubstituted ethane's liquid crystals containing polyfluorophenyl group were synthesized from penta-fluorobromobenzene and aliphatic aldehydes.Their phase transition behaviours were studied by DSC and thermal polarizing microscopy.The results showed this series of compounds have high clearing point an…
Single molecule tracking using fluorescent dye or nanoparticle labels has emerged as a useful technique for probing biomolecular processes. Considerable interest arises in the development of nanoparticle labels with brighter fluorescence in order to improve the spatial and temporal resolution of single molecule detect…
The protein alpha synuclein is the primary component in the amyloid fibrils that form the pathogenic neural plaques in Parkinson's disease. The structural conversion of alpha synuclein in vivo from a membrane-bound α-helix to an amyloidogenic β-conformation is an essential step in the toxic aggregation of the protein.…
A simple chemical process has been used to synthesize nanocrystalline CuInS2. The material was synthesized by pouring a mixture of aqueous solutions of CuCl2, InCl3 and CS(NH2)2 (thiourea) into a patry dish which was then heated in an oven (for 45 minutes) at various constant temperatures ranging from 200 °C to 400 °C…
The study addresses the problem of uniform distribution of points required to create a structure of fibrous composite shells of arbitrary shapes with transversely isotropic properties. The proposed approach is based on statistical modeling. The universal mathematical model is described, which makes it possible to dist…
Σκοπός της παρούσας Διδακτορικής Διατριβής ήταν η μελέτη του ρόλου της κάμψης του ριζικού σωλήνα στον μηχανισμό θραύσης των μηχανοκίνητων μικρο¬εργαλείων Ενδοδοντίας Ni-Ti του συστήματος ProFile (Dentsply Maillefer, Ballaigues, Switzerland) σε συνθήκες κλινικής προσομοίωσης και επαναλαμβανό¬μενης χρήσης. Χρησιμοποιήθη…
The diffusion behavior of block copolymer Pluronic F-127 in aqueous dispersions of single-walled (SW) and multi-walled (MW) carbon nanotubes (CNT) has been studied by pulsed-field-gradient (PFG) 1H ...
Micro/nano scale materials have shown great potential for a variety of applications. However, the widespread use of many of these materials for biomedical application has been restricted by their poor biocompatibility and physiological/anatomical limitations. In this study, both novel micro and nano scale biomaterials…
The temperature dependence of the hyperfine splittings and widths of the absorption lines of two different paramagnetic probes dissolved in two nematic liquid crystals with different viscosities are studied using the EPR technique. Special attention is devoted to the changes of the hyperfine splittings and linewidths…
The main focus of this thesis is the characterization of defects and microstructure in high-energy ball milled magnesium hydride powder and magnesium-based multilayered composites. Enhancement in kinetics of hydrogen cycling in magnesium can be achieved by applying severe plastic deformation. A literature survey revea…
Based on experimental studies carried out on samples of titanium alloy, simulating shell design, it shown that the factor influencing the development of the welding process and the quality of the diffusion junction, is a microstructure of welded blanks. The numerical simulation revealed that the contact zone of the wo…
The question of the self-consistency of spin wave theory as applied to different spin arrangements in magnetically ordered crystals has been reinvestigated. A set of equations, involving the probabilities of finding a given number of spin deviations at a given site first proposed by Van Kranendonk and Van Vleck (1958)…