Materials Literature
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The chemistry of N-organosilylalkyl-substituted heterocyclic bases (thymine, adenine and cytosine) is described, covering the structures of model compounds, the synthesis of substituted oligo-siloxanes and a preliminary report of the synthesis of a poly(organosiloxane) with pendant N-alkyl(heterocycle) functionalities…
There is a need to explore circuit application in new emerging technologies for their rapid commercialization as the CMOS technology is approaching its limits. Carbon Nanotube Field-Effect Transistor (CNFET) is a promising candidate for future electronic devices for low-power low-voltage digital or analog circuit appl…
This paper discusses the efficiency of photocyclic initiating system (PCIS) based on a pyrromethene dye (EMP), an amine as electron donor (NPG) and an iodonium salt as electron acceptor (I250) under homogenous irradiation and holographic recording. It is shown that the PCIS is more efficient than the corresponding two…
Silica gel (SG) was synthesized via acidification of sodium silicate solution then doped with Fˉ or Zr(IV) in molar ratios of F/Si 3/100, and Zr/Si 0.75/100 and 3.75/100 and sintered at 500°C, 800°C and 1000°C. The samples were investigated by X-ray diffractometry, infrared absorption and Raman spectra, surface area m…
In the present study, CdS nanorod particles with the stacking fault structures were hydrothermally synthesized through a dissolution-recrystallization approach in concentrated ammonia solvent, for the first time. It was clear that concentrated ammonia solution contained a large number of hydroxyl ions and large number…
Reaction of Ba(NO3)2 with Fe(NO3)3·9H2O and H2C2O4·2H2O in aqueous medium readily affords, in high yield, the bimetallic complex polymer of chemical composition {Ba6(H2O)17[Fe(C2O4)3]4}·7H2O (1), consistent with the expected ratio of 3BaII vs. 2FeIII. Compound 1 was fully characterized by elemental and thermal analyse…
Iron-chromium cast alloys are basically abrasive wear resistant materials particularly employed in mining industry; these alloys are often utilized in the manufacture of milling balls. In particular, high Cr and high C cast alloys have been subjected of significant research; for instance, most reports have been addres…
Mainly for aluminum castings the properties depend on the grain structure, it is desirable to achieve a fine equiaxed grain structure. The formation of fine equiaxed grain structure depends on the rate of solidification, addition of grain refiners. Al-Ti-B master alloys are used in Al-Si alloys casting industries as a…
Mass spectrometric studies of the vapours over solid lead oxide in a flow of gaseous arsenic and antimony trioxides were conducted. The following ions of the ternary oxides were detected: Pb3As2O6(+), Pb3AsO4(+), PbAs2O4(+), PbAsO2(+), PbSb2O4(+), and PbSbO2(+). The origin of these species produced by the ionisation a…
The L1 0 -FePt film has been fabricated via layer-by-layer assembly under an external magnetic field and exhibits significant perpendicular magnetic anisotropy.
We study, beyond the Gaussian approximation, the decay of the translational order correlation function for a d -dimensional scalar periodic elastic system in a disordered environment. We develop a method based on functional determinants, equivalent to summing an infinite set of diagrams. We obtain, in dimension , the…
A novel procedure involving pyridinium-assisted hydrothermal synthesis has been developed for the preparation of monodisperse graphene quantum disks (GQDs) with a homogeneous size. Due to the high water solubility and pH stability, the first application of GQDs in the bioimaging of HeLa cells has been demonstrated.
Quality of cocoons determined by its silk content which is directly related with the market value. Silk is broadly used in textiles and it is costly too. Farmers are selling the cocoons in a bulk with an average market value to the yarn producers. Presently, the quality of cocoons is verified by visualizing the color,…
We present the theories used in solid-state nuclear magnetic resonance and the expansion schemes used as numerical integrators for solving the time dependent Schrodinger Equation. We highlight potential future theoretical and numerical directions in solid-state nuclear magnetic resonancesuch as the Chebychev expansion…
A simple method to resolve the features that are characteristic of hydroxyl radicals in sonoluminescence (SL) spectra from aqueous solutions has been developed. Using a modified version of cavitation threshold (CT) cell in which single band filters were sandwiched between the UV grade fused silica window and the photo…
Synthesis of nanocrystalline, spherical, and anatase type TiO2 photocatalyst were performed by supercritical gas antisolvent process in the range of 50150 C and 100150 bar. As-prepared samples were calcined at 500 C and characterized by X-ray diraction, scanning electron microscopy, BrunauerEmmettTeller method, dieren…
Fabric electrode is an emerging electrode element; due to some of its advantages, it can replace traditional conductive gel to become the next generation of electrode. This paper starts from the definition of fabric electrode, introduces the definition and working principle of fabric electrode, materials of producing…
The decomposition analysis of void reactivity coefficient for innovative BWR assemblies is presented in this paper. The innovative assemblies were loaded with high enrichment UO2and MOX fuels. Additionally the impact of the moderation enhancement on the void reactivity coefficient through a full fuel burnup discharge…
A general particle population control method has been derived from splitting and Russian Roulette for dynamic Monte Carlo particle transport. A well-known particle population control method, known as the particle population comb, has been shown to be a special case of this general method. This general method has been…
We investigated mechanism of the dissolution of HBPE-NO2 films to the developer by analysis of the developer after development. A HBPE-NO2 film containing BADNQ2 was irradiated with 500 mJ/cm2 of exposure dose and developed with 25wt% TMAHaq. The developer was then neutralized by HClaq. and the solution was evaporated…