Materials Literature
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The research results of the hydrodynamic situation, as well as the chemical and isotopic compositions of target aquifers in the vicinity of radioactive waste storage are considered. The surpassing of water quality standards for Ra- 226, α-activity, Si, Fe, F, and some heavy metals was detected in target Upper Carbonif…
Particle crushing can result in changes in the mechanical properties of granular materials. By using Discrete Element Method (DEM), a model is established to simulate the breakage of two-dimensional particles for three different shapes (triangle, square and hexagon). In the simulations, each particle consists of two s…
Facile method of synthesizing organic-inorganic solid foam in complex structure is presented. The synthesis method is based on the use of neutral surfactant (1-hexadecylamine, C16H33NH2) as structure directing agent and inorganic salt (vanadium nitride, VN) as precursor. The foam containing C16H33NH2 has been synthesi…
In this study, water-based polyurethane coating with anti-graffiti property was prepared. The pot life and volatilization process of volatile matters of the coating were investigated. General properties of pencil hardness, flexibility, adhesion and impact resistance were tested. Along with the increase of anti-graffit…
Indium–tin oxide transparent films were deposited by modified method for radiofrequency (RF) vacuum sputtering on flexible substrate for application as display electrode. Amorphous, colourless and highly flexible polyethyleneterephtalate (PET) foil, having melting point of 80°C, was chosen as a flexible substrate. Mod…
This article introduces a numerical scheme to simulate water impact on rigid structures, in which the air-water two phase flow is solved using the pressure-based Computational Fluid Dynamics method. This method is implemented using an in-house code, the General Transport Equation Analyser, which is an unstructured gri…
Particle sedimentation is an essential tool for determining the stability behaviour of colloidal dispersions. In this study, we derive new analytical equations of motion for estimating the settling velocity-time function of particles sedimenting in colloidal dispersions under uniformly accelerated sedimentation model.…
Abstract. Present publication gives a general theoretical concept and also presents the relevant experimental results concerning the effect of the magnetostatic coupling between the twin layers on the magnetic-field-controlled superelastic behavior during the mechanical cycling in magnetic field in Ni-Mn-Ga.
We have investigated the electronic and lattice properties of AlBN and related ternary polytypes which are sp3-bonded compounds. Considered polytypes are 2H-, 3H-, 4H-, 5H-, 6H-, 3×2H-, and 12H. Internal atoms (Al or N) of AlN polytypes replaced with B, P, or As atoms as AlBN, AlPN, and AlAsN. Their electronic and lat…
This paper deals with possibility of cold and warm bending for cylindrical pipe of AZ61(Mg-6%Al-1%Zn) magnesium alloy. Work piece is a pipe of 22mm outer diameter D and 18mm inner diameter. The pipe of 330mm long with a support distance of 240mm for bending test was prepared. Three kinds of upper bending dies with ave…
The grafting polymerization of methyl methacrylate and Agave cellulose was prepared and their structural analysis and morphology were investigated. The grafting reaction was carried out in an aqueous medium using ceric ammonium nitrate as an initiator. The structural analysis of the graft copolymers was carried out by…
We combined the density gradient theory (DGT) with the PC-SAFT and Peng-Robinson equations of state to model the homogeneous droplet nucleation and compared it to the classical nucleation theory (CNT) and experimental data. We also consider the effect of capillary waves on the surface tension. DGT predicts nucleation…
The second-harmonic generation in thin (from 430 to 2330 nm) tetra-aminodiphenyl films obtained by thermal evaporation in vacuum is investigated. The dependences of the quadratic optical susceptibility on the film thickness are analyzed for several models assuming different location of nonlinear sources. The film nonl…
Abstract Porous reticular tin–iron oxide composite have been prepared by electrostatic spray deposition method for lithium‐ion batteries. The structure of depsitied electrodes are investigated by X‐ray Diffraction (XRD), which shows that the film is amorphous. Electrochemical characterization by galvanostatic charge‐d…
Background. The clinical applications of hepatic phosphorus-31 magnetic resonance spectroscopy (31P MRS) remain to be difficult because the changes of phosphates between normal hepatic tissues and pathological tissues are not so obvious, and furthermore, up to now there is few literature on hepatocyte-targeted 31P MRS…
We demonstrate heterogeneous chemistry between Li and anatase TiO2 nanoparticles under UHV. The reduction of TiO2 upon formation of lithium oxide proceeds via two different schemes: one that reduces Ti(4+) to Ti(3+) and one that reduces Ti(4+) directly to Ti(2+). The second scheme sets in only after a critical degree…
We report the synthetic route of two ruthenium dye-sensitizers; namely, Ru(4,4-dicarboxylic-2,2-bipyridine)(1,10-phenanthroline)(NCS)2 (6) and Ru(4,4-dicarboxylic-2,2-bipyridine)(1,10-phenanthroline-5-carboxylic acid)(NCS)2 (7), which both complexes were characterized by 1H NMR, 13C NMR and UV-Vis spectroscopic te…
SEM (scanning electron microscopy) is a useful technique for the observation of the surface morphology of various materials. Compared to TEM (transmission electron microscope), one of the advantages of SEM is easy sample preparation, although the spatial resolution of SEM is normally less than that of TEM. To improve…
The Ge-Nd has been critically assessed by means of the CALculation of PHAse Diagram (CALPHAD) technique. For the liquid phase, the associate model was used with the constituent species Ge, Nd, Ge 3 Nd 5 and Ge 1.6 Nd in the Ge-Nd system. The terminal solid solution diamond-(Ge), dhcp-(Nd) and bcc_A2-(Nd) in the Ge-Nd…
Phosphor thermometry is a semi-invasive surface temperature measurement technique utilizing the luminescence properties of thermographic phosphors. Typically these ceramic materials are coated onto the object of interest and are excited by a short UV laser pulse. Photomultipliers and high-speed camera systems are used…