Materials Literature
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In the original to remove steel and steel fiber reinforced concrete coarse aggregate in quartz powder and a small amount of activator, can boost steel fiber content, and its application in construction makes it more convenient, but how the penetration resistance works is not particularly clear. Through the penetration…
This study analyses the Fushun oil shale semi-coke samples prepared in 450°C, 550°C and 650°C by using STA449 TGA. The experiment studied their ignition points, concluded that with the ascent of the char-making-temperature the semi-coke’s ignition point is getting higher. The test used Coats-Redfern way to study the s…
This paper describes the development of a piezoelectric flextensional transducer, which aims toeffectively degrade the TCE contained in aqueous solution. In order to adjust the 1st flextensionalresonant frequency and output displacement of the flextensional transducer, the effect of the geometricalvariations on perfor…
Aiming at the bad performance when achieve rich colors of fabric with very limited yarns in the traditional woven industry, the paper comes up with a solution of selecting yarn from a set of yarns based on SAGA(simulated annealing genetic algorithm). In order to reduce the computational complexity, original image is c…
A substrate switch enables a novel two-dimensional arrangement of germanium atoms. A substrate switch enables a novel two-dimensional arrangement of germanium atoms.
In the experiment, the tetrabutyl titanate and samarium trinitrate were used as raw material, samarium doped TiO2 powder was prepared by sol-gel method. Main factors that affect the TiO2 nanoparticles, such as catalyst, ratio of raw materials, and calcination temperature of the preparation process were studied. TiO2 p…
MgZnO has attracted a lot of attention for flexible device. In the flexible substrate, the crystalstructure of the thin films as well as the surface morphology is not good. Therefore, in this study, westudied on the effects of the oxygen pressure on the structure and crystallinity of Mg0.3Zn0.7O thin films deposited o…
Magnetotransport properties are investigated in two-dimensional electron gas (2DEG) of AlGaN/GaN heterostructure, including the Drude conductance, the Shubnikov-de Haas (SdH) oscillations and the change with temperature, the electron-electron interaction (EEI) and the change with temperature, the weak antilocalization…
Abstract The eigen value approach, following Laplace and Fourier transforms has been employed to find the general solution of the field equation in a micropolar elastic solid with voids for the plane strain problem. An application of an infinite space with impulsive force has been taken to illustrate the utility of th…
A mathematical model is derived for the thermal-stress state of steel rollers quenched after inductive heating. The model involves numerical solution of a system of interrelated equations of nonlinear thermal conductivity and thermoviscoelasticity, with allowance for the kinetics of austenite phase transformation and…
The Raman scattering spectra of porous p −- and p +-silicon with a porosity of 20–70% are investigated. Conclusions on the morphology of silicon nanocrystallites are made based on this. It is shown that their size and shape depend on the level of sample doping. The crystallites are comprised of nanowires with diameter…
Vacuum insulation structure panel is the one type of the insulation materials. The characteristics of this material are not only low thermal conductivity, good sound insulation, energy efficient, environmental protection but also does not contain any ODS material. FLUENT software using Vacuum insulation structure pane…
A series of transition metal alanine-salicylaldehyde Schiff base chromium (III) complexes immobilized on MCM-41 were prepared and characterized by various physico-chemical measurements such as FIIR, XRD, HRTEM, N2 sorption and elemental analysis. The immobilized complexes were effective and stable catalysts for the ep…
Mullite material was prepared from quartz (SiO2) and industrial alumina (γ-Al2O3). The effects of mineral composition and sintering temperature on the final phase composition and physical properties of mullite were investigated. The results shown that a large number of mullite phase was emerged in samples when the rat…
In bone tissue engineering, synthetic scaffolds are commonly used and this should present the following requirements; (i) recapitulate the native three-dimensional (3D) hierarchical fibrous structure, (ii) possess biomimetic surface properties and (iii) demonstrate mechanical integrity. However, some methods of produc…
The general problems of hole transport and bimolecular recombination of charge carriers in molecularly doped polystyrene with an ultimately low dopant concentration (6 wt %) were considered. The experimental studies were performed by the radiation-induced time-of-flight method with bulk generation of charge carriers.…
Being added by H3BO3 as flux, the nanosize strong green phosphor Zn2SiO4: Mn2+ was prepared by an improved sol-gel method. The structure and the morphology of the samples were examined by XRD, UV-VL spectrophotometer and SEM. The photoluminescence properties were measured by fluorescence spectrometer. Results show tha…
We present a first-principles theoretical study of the relative formation energies and the electronic states of the $$InP\left( {111} \right)A - \left( {\sqrt 3 \times \sqrt 3 } \right)$$ surface. The energetically most favorable reconstruction has a T 4-site P trimer on the surface, which exhibits a metallic band cha…
Les optiques diffractives présentent de nombreux avantages par rapport aux optiques traditionnelles. Elles sont en général légères, peu encombrantes, possèdent des propriétés qui n’existent pas en optique traditionnelle et interviennent dans la fabrication d’éléments hybrides (modification de la polarisation, compensa…
We have previously synthesized silver-containing hydroxyapatite (Ag-HAp) powders by an ultrasonic spray-pyrolysis (USSP) technique. On the other hand, we have successfully fabricated novel calcium-phosphate cements (CPCs) composed of mainly β-tricalcium phosphate (β-TCP) phase with anti-washout property (hereafter, β-…