Materials Literature
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The electronic structure of the recently suggested cubic ordered phase Ti5O5(cub:) of titanium monoxide has been studied by means of accurate first-principles calculations within the density functional theory with pseudo-potential approach based on the plane wave basis. It was found that Ti5O5(cub:) is the only phase…
An attempt is being made to develop nano particles reinforced metal matrix composites using powder metallurgy process. Uniform distribution of particles was achieved by sonication of reinforcement for distribution of Carbon nano tube (CNT). FESEM has shown the distribution with particle size conforming nano size and u…
The present investigation was aimed to formulate and evaluate of fast dissolving tablets of clopidogrel bisulphate solid dispersion. The solid dispersion was prepared by fusion method using PEG 6000 as carrier in various ratios. The physio-chemical characterization of solid dispersion was carried out by various parame…
Elastomers filled with hard nanoparticles are of great technical importance for the rubber industry. Dynamic mechanical analysis of conductive multiwall carbon nanotube reinforced microcellular silicone elastomer nanocomposites were used to study the structural analysis of viscoelastic materials as a function of tempe…
Stainless steel AISI 316 was coated with aluminum-silicon by Chemical Vapor Deposition in Fluidized Bed Reactor (CVD-FBR) to 540°C and subsequently heat treated to improve its mechanical properties and its behavior against oxidation, by inter diffusion of the alloying elements. Later, oxidation was performed austeniti…
Dislocation models of twins, represented by jogged positions of twinning dislocations at the boundaries, were examined. Uniform distribution of dislocations in an elastic twin, growing under the action of point load was calculated. Calculations of interaction of the contrary elastic twins were made. The results explai…
eld theory to investigates the rate of loss of energy of a beam of charged particles moving parallel and perpendicular to a silicene layer. The energy loss spectrum is presented as a function of the speed of the charged particles. We further study and compare the part of the energy absorbed by collective plasma excita…
We report the deposition of vacuum annealed (450 o C) zinc tin oxide thin films (thickness, 26 - 43 nm) on glass by dipping technique from precursor solutions of varying Sn to Zn content (R = 0.43 to 0.54) in 2-methoxy ethanol with acetylacetone. Grazing incidence XRD patterns confirm the formation of hexagonal ZnO at…
This paper deals with numerical analysis of 3D model of an SSHE is developed in order to study the fluid flow and heat transfer with a steady state laminar, non-isothermal flow of pure glycerine, which can be treated as a Newtonian fluid. The variation of the local heat transfer coefficient based on the inner wall tem…
In its early stages, this project aims to explore the practical implications of the Anti-Crack Model utilizing various delivery methods of avalanche explosives. This study is comprised of two main questions; the first, examines whether aerial or surface detonations of explosives are more effective in producing larger…
The effect of ash contents of fifty-two selected Nigerian timbers was analyzed. The results showed that Bombax brevicuspe had the highest ash contents of 3.4% while Dichapetalum barteri recorded the least ash contents of 0.28%. There are five sets of timbers with equal ash content values. They are, Gmelina arborea and…
The presentation starts with a brief description of the present state of multiscale modeling of quasi-static properties of filled elastomers following the rigorous physically based route from (non-Gibbsian) statistical mechanics of crosslinked and entangled networks to continuum mechanics and FE-mechanics. We show how…
Een thiol gefunctionaliseerde Periodieke Mesoporeuze Organosilica (PMO) werd gesynthetiseerd met een zelfgemaakte thiolprecursor en P123 als templaat. Een thermisch en hydrothermisch stabiel, hexagonaal geordend materiaal met een specifiek oppervlak van 528 m2/g werd bekomen. Er werd ook een co-condensatie van thiol e…
Cr(III) ions dopedNaCaAlPO4F3phosphorwas synthesized by using solid state reaction method using flux. The prepared sample was characterized by various spectroscopic techniques such as powder XRD, SEM with EDS, Optical absorption, Electron Paramagnetic Resonance (EPR), Photoluminescence and FT-InfraRed. From powder XRD…
In the present study, Turmeric oil was efficiently extracted from turmeric seeds in a pilot scale unit using R134a (1,1,1,2tetrafluoroethane) as a solvent. The effect of operating parameters (Pressure of solvent, average particle size of feed and time of extraction) on % extraction of oil was studied. Maximum oil yiel…
This paper report the simulation results for annealed glass subjected to air blast loading. In this research, 8 mm and 12 mm thick annealed glass was subjected to blast with a charge weight of 2kg and 5kg of TNT at a standoff distance of 3.0 meter. AUTODYN 3D hydrocode simulation software was used to simulate the beha…
Hydrogen sensing and photoelectric properties of a graphite/ZnO nanorods (NRs) junction were investigated. The graphite/ZnO NRs junction was prepared by low temperature hydrothermal growth and deposition of colloidal graphite. The proposed hydrogen sensor showed response to 1000ppm hydrogen in nitrogen even at room te…
Power quality standards (IEEE-519) compel to limit the total harmonic distortion within the acceptable range. Hybrid filter which has been used to monitors the load current constantly and continuously adapt to the changes in load harmonics. The power filter is consisting of a shunt passive filter connected in series w…
Effect of load ,sliding velocity ,material ,hardness of disks and roughness of the sample surface on coefficient of friction and wear rate were studied in this work .Pin on disk technique was used to satisfy the required aims ,and the testing samples were subjected to various conditions of velocities and loads. The re…
Objective: The purpose of this study was to express and purify recombinant anti-thrombin in Saccharomyces cerevisiae BY4741 expression system. Methods: cDNA of human anti-thrombin gene was amplified with specific primers and cloned into pYES2/CT vector with His-tag for easier purification using Ni2+ Results: Protein w…