Materials Literature
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In the present investigation, the effect of two different mineral nano clays and a synthetic nano layered silicate on the properties of a transparent polyurethane resin has been studied. Both high rotator Torusmill and high intensity ultrasonic deagglomerator are utilized for the dispersion process. Observations by me…
In this work, comparative studies of three different mixed-oxide synthetic routes i.e. the conventional, the B-site precursor and the combination of B-site precursor and perovskite phase stabilizer on phase formation, microstructure and dielectric properties of ferroelectric lead zinc niobate-based ceramics were demon…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation H. Gao, S. Ali, B. Lopez, P. Lopez; New developments in EMAT techniques for surface inspection. A…
The effect of isothermal forging on microstructure and mechanical properties of Ti-44Al-4Nb-4Zr-0.2Si-1B alloys were investigated by means of BSE, TEM, tensile and the high cycle fatigue test at room temperature. The results showed that the lamellar thickness and volume fraction of equiaxed γ phases and B2+ω phases de…
In this study, temperature-sensitive amphiphilic core-shell nanoparticles of N -isopropylacrylamide (NIPAM) were prepared via interfacial in situ polymerization of styrene (S) and NIPAM. Oil soluble cumene hydroperoxide (CHPO) oxidizer and water soluble reductant iron(II) sulfate (FS), polyurethane and hexadecane were…
The aim of this research is using different doses of UVB radiation to study the influence on the cell behaviour and elasticity of Hs68 human dermal fibroblasts. These studies include cell viability analysis, proliferation index, gene expression and Young's modulus measurement using atomic force microscope (AFM). Resul…
The applicability of the model of irreversible aggregation for theoretical description of the process of nanofiller particle aggregation in polymer nanocomposites is shown. The main factors that influence the indicated process have been revealed. It is shown that strongly expressed aggregation of the particles of a di…
Single crystals of MoTe2 grown by chemical vapour transport technique were used here. X-ray diffraction technique reveals that the MoTe2 crystals belong to hexagonal crystal structure. The optical response of these crystals has been obtained by UV-VIS-NIR spectroscopy. The transmittance of MoTe2 crystal has been used…
Pyrophosphates are essential in all living organisms for normal cellular functioning. Strontium pyrophosphate (Sr2P2O7) nano-particles were synthesize by surfactant mediated approach. Transmission Electron Microscopy (TEM) study confirmed the nano-size, the dimensions in the range from 22 nm to 50 nm. The dielectric s…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Feng Xue, Youhe Zhou; Effect of strain on critical current density in grain boundaries of superco…
In the current research, electrospun gelatine fibers for vascular tissue egineering was successfully fabricated with the aim of increasing the adhesion and stability of cells under shear stress. The gelatin solutions were prepared with different amount of gelatin (10, 15, 20 and 25% wt) which dissolved in different ra…
A variety of cast iron and steel grades are used for manufacturing dies in stamping industry. The costs of these materials may vary considerably. However, with appropriate surface treatments, coatings and lubricants, a cost-effective die material may outperform the expensive ones. Therefore, in selecting die materials…
Streszczenie — Stosuj¹c dwuetapow¹ (prepolimerow¹) metode otrzymano segmentowe elastomery uretanowe z wbudowanym chemicznie reaktywnym nanonape³niaczem, ktorym by³ funkcjonalizowany poliedryczny oligosilseskwioksan (PDSPOSS). W ramach pierwszego etapu prowadzono poliaddycje w masie 4,4’-diizocyjanianu difenylometanu (…
Time-resolved measurements of the photoluminescence (PL) decay upon pulsed laser excitation (TRPL) allow to study the recombination kinetics in photovoltaic absorber materials. Hence, the PL decay time measures the electronic quality of the semiconductor. TR-PL might thus be an attractive technique for the in-line ins…
Las interfaces gráficas son útiles para especificar y examinar estructuras químicasy propiedades físicas de materiales. En este artículo se presenta el software SIMMON (Simulación de propiedades magnéticas de manganitas) como un programa de visualización cuyo objetivo es mostrar la magnetización, la susceptibilidad ma…
We report on the statistics of bubble size, topology, and shape and on their role in the coarsening dynamics for foams consisting of bubbles compressed between two parallel plates. We find that in the scaling regime, all bubble distributions are independent not only of time, but also of liquid content. For coarsening,…
Blend fibers consisting of equal amount of poly(L-lactic acid)(PLLA)and poly(D-lactic acid)(PDLA)were prepared by a melt-electrospinning process using a CO2 laser irradiation. The fiber structure was investigated by a differential scanning calorimetry, a scanning and a transmission electron microscopies, and an X-ray…
Due to the wide spread of power electronics equipment in modern electrical systems, the increase of the harmonics disturbance in the ac mains currents has became a major concern due to the adverse effects on all analysis and simulation using MATLAB-SIMULINK of a three-phase shunt active equipment. This paper presents…
In [(2-amino-5-methylpyridinium) (PbBr 3 )] n the asymmetric unit comprises a cation (C 6 H 9 N 2 + ) and half unit of the dimer anion hexabromodiplumbate (Pb 2 Br 6 2− ). The plumbate dianion forms a polymer, and together with the cation repeat symmetrically to form the extended [(2-amino-5-methylpyridinium) (PbBr 3…
This thesis deals with the transformation of ethanol into acetonitrile. Two approaches are investigated: (a) the ammoxidation of ethanol to acetonitrile and (b) the amination of ethanol to acetonitrile. The reaction of ethanol ammoxidation to acetonitrile has been studied using several catalytic systems, such as vanad…