Materials Literature
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Microstructural evolution accompanying mechanical properties change by aging treatment at 723 K in cold-swaged Ti-29Nb-13Ta-4.6Zr were investigated in order to obtain an optimized aging condition for getting excellent mechanical properties. The precipitate free zone exists in Ti-29Nb-13Ta-4.6Zr after aging treatment f…
As hemp is a renewable resource with the high biomass yield it could be considered as potential abundant local biomass material for a wide range of applications. In this article hemp fibres architecture as a source of high strength cellulose are analysed. In experimental part steam explosion technology is applied to d…
In this paper CdO thin films were prepared by using chemical bath deposition method. Three different thicknesses of CdO films (84.1nm, 165.1nm, 194.23nm) were used .x-ray diffraction technique has confirmed the formation of cadmium oxide, where reveals the changes in films structure with thickness increase. Many struc…
Thermoelectric materials of the skutterudites In0.3Co4Sb12-xSex(x=0—0.3) were prepared by melt-annealing and spark plasma sintering. The existence forms of the element In were investigated, and the effect of doping Se in In filled-skutterudites on the structure and thermoelectric properties were also studied systemati…
Studies on the corrosion behaviour of mild steel electrodes in inhibited hydrochloric acid are described. Conventional weight loss measurements show that a maximum concentration of 140 ppm of tannin from Rhizophora racemosa is required to achieve 72% corrosion inhibition. Similar concentration of tannin: H3PO4 in rati…
We numerically examine the nonlinear rubber elasticity of topologically constrained polymer networks. We propose a simple and effective model based on Graessley and Pearson's topological model (GP model) for describing the topological effect. The main point is to take account of a nonequilibrium effect in the synthesi…
Disseminated euhedral to subhedral crystals of perovskite occur in association with monticellite, clintonite, magnetite, spinel... . the compositional changhes indicate a limited range of REE3+Fe3+Ca-1Ti-1 substitutions.
A new corrosion inhibitor, namely diethyl 2-(2-oxopyrrolidin-1-yl) ethyl phosphonate (P1) was synthesized and its action on the corrosion of steel in 0.5 M H2SO4 solution has been studied. Weight loss measurements, potentiodynamic polarisation and linear polarisation resistance (Rp) and impedance spectroscopy (EIS) me…
*** delimitate three different states of the cellulose solution: semi-diluted entangled network, semi-diluted tangled network and concentrated solutions. The results are favorable for predicting the spinnability of the cellulose-NaOH complex spinning solution, being particularly important before using this effective s…
The morphology of porous silicon treated by electrochemical process depends sensitively on the anodization parameters, such as the current density and electrolyte concentration. In this work, the self-assembly quasi-regular arrangements porous silicon have been fabricated by controlling of the several important anodiz…
Polyhydroxyalkanoates (PHAs) are polyesters of hydroxyalkanoates synthesized by numerous bacteria as an intracellular carbon and energy storage compounds. PHAs have attracted much attention as substitute for non-degradable plastics derived from petrochemicals because of their similar material properties to conventiona…
Liposome surface functionalization facilitates the enormous potential applications of liposomes, such as stabilizing and targeting carrier systems for delivering active molecules in biomedical research and applications. Cell surface carbohydrates have been an attractive model system for liposome surface functionalizat…
A brief introduction to the available main methods of calculating the axial compressive strength of steel tube-reinforced concrete composite columns is presented.The ultimate state of axial compressive strength of composite columns and a formula for calculating the peak compressive strain of the composite column are p…
The method of fault diagnosis and condition evaluation for internal insulation of GIS equipment by measuring SF6 decomposition products is with the advantages of strong anti-interference ability and high sensitivity,so it is applied in the field test of equipment.Different test methods were introduced in this paper.So…
Double-bubble ultrasonic cavitation dynamic differential equation obtained from superposition principle is normalized. MATLAB is used to analyse the effects of bubble linearity, double-bubble distance, sound frequency, sound pressure amplitude on cavitation process. Bifrequency ultrasound is introduced into the equati…
Ceramic foams with additional strut porosity were prepared by a self-foaming process of a polysilsesquioxane. The strut porosity was generated by adding sacrificial pore formers comprising of polymethylmethacrylate or of polyethylene to the self-foaming silicone. The polymer-inherent shrinkage was reduced by adding Si…
In order to overcome trial-and-error situation in the enantioseparation by the diastereomeric salt formation, we carried out systematic studies on the enantioseparation of racemic 1-arylethylamines with/without a substituent on the aryl group by using enantiopure arylglycolic acids. The studies revealed that there are…
A novel backward microstrip coupled-line coupler which has been designed based on the metamaterial and composite right/left handed (CRLH) transmission line (TL) concepts is proposed. Coupling coefficient, bandwidth and size of proposed microstrip coupler are improved by coupled interdigital TLs which have been realize…
Henri Van Heurck examined a sample collection of sea ice and underlying sea floor sediment material during the Belgian Antarctic Expedition (1897–1899). He described eight new taxa of the monoraphid diatom genus Cocconeis from this collection including: C . antiqua var. tenuistriata , C . gautierii var. gautierii and…
Electric conductivities of PbWO4- and PbMoO4-based oxide ion conductors have been measured in the reducing atmospheres to investigate the transport properties and to evaluate the applicability to the solid electrolytes of fuel cells. Although almost all the solid solutions showed conductivity enhancements due to appea…