Materials Literature
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Present investigation was undertaken with a view to develop fast dissolving tablets of Telmisartan which offers a new range of product having desired characteristics and intended benefits. Fast dissolving tablets of Telmisartan using various superdisintegrants such as Sodium Starch Glycolate (SSG), Crosspovidone (CP)…
The Eastern Europe Research Reactor Initiative was established in January 2008 to enhance cooperation between the Research Reactors in Eastern Europe. It covers three areas of research reactor utilisation: irradiation of materials and fuel, radioisotope production, neutron beam experiments, education and training. In…
In this paper, TiO2/ ordered mesoporous carbon (CMK-3) composites were prepared by hydrolysis method after electron beam (EB) pretreatment. The XRD results showed pure TiO2/CMK-3 composites can be obtained under mild reaction conditions (0.06 M TiF4 solution, and at 60 °C), and the SEM/TEM images showed that the TiO2…
Traveling wave reactors are envisioned to run on depleted or natural uranium with no need for enrichment or reprocessing, and in a manner which requires little to no operator intervention. If feasible, this type of reactor has significant advantages over conventional nuclear power systems. However, a practical impleme…
The crude extracts of Citrus sinensis seed coats were evaluated for anthelmintic activity using adult earthworms. Petroleum ether, chloroform and methnolic extracts of Citrus sinensis seed coats were evaluated separately for anthelmintic activity by using adult Indian earthworms, Pheretima posthuma (Annelida) . Variou…
Adhesion and mechanical properties of vinyl aromatic thermoplastic elastomers on the Russian market were studied. Significant differences between the materials were shown that are due to differences in the chemical natures and structural parameters of block copolymers.
In order to understand effects of oil thermal aged state on space charge behaviors in oil-paper insulation further, transformer oil with different aged states is prepared by accelerated thermal aging. What's more analysis on physical and chemical properties of oil is made. The samples are made of new kraft paper which…
지구궤도 상에는 무수히 많은 우주파편(Orbital debris)이 존재하며 매우 높은 속도로 선회하고 있기 때문에 정상가동중인 인공위성과 충돌 시 위성구조체에 치명적인 손상을 일으킬 수 있다. 본 연구에서는 입자완화유체동역학(Smoothed particle hydrodynamics, SPH)을 이용하여 우주파편과의 초고속충돌로 인해 발생 가능한 저궤도 위성구조체의 손상분석을 수행하였다. 위성구조체의 본체 패널(Panel)로 사용되는 허니콤샌드위치패널(Honeycomb sandwich panel, HC/SP)에 대해 충돌속도에 따른 손상분석을 수행하였으며 위성구조체…
Accumulation of space charge within a polymeric dielectric material, especially under dc voltage, is associated with its degradation. Space charge accumulation modifies the local field within the material and might contribute to its aging. Further, it would modify the conduction through the material. Formation of spac…
High Voltage Direct Current (HVDC) converter stations represent a significant investment and source of revenue for the electric utilities owning them. Many installations are approaching or exceeding thirty (30) years of service. Components are aging. Manufacturers may no longer be in business or have merged and consol…
A new method is developed for the synthesis of branched and network polymers that give rise to poly(epoxy isocyanurate) matrices during thermal curing. Matrix polymers are prepared on the basis of polyethers (poly(propylene glycol) or poly(tetramethylene glycol)), diisocyanate, and an epoxy oligomer. The chemistry of…
A detailed understanding of the permeation of hydrogen isotopes through structural materials is an important issue concerning the reliability, safety, fuelling and environmental impact of fusion power reactors. The permeation of hydrogen through SUS 316L stainless steel, which will be used in various parts of fusion p…
his paper studies the feasibility of preparation high strength fired bricks from iron tailings with addition of clay and coal gangue. The results indicated that the optimum conditions were found to be that the hematite tailings content were 35%–50%; the firing temperature was 1000 °C. Under these conditions, the mecha…
A two-component polyurethane adhesive based on solvent-free was prepared with PBA, vegetable oil polyols, IPDI and several different small molecular polyols as main raw materials. The influences of different mole ratios of NCO groups (from prepolymer )and OH groups (from the mixed polyols) on water absorbing capacity…
Based on experimental investigation of precipitates behavior, formation mechanism on hot delivery crack of microalloy steel was analyzed by binding microstructure evolution and thermal stress changing. The results show that different conveied way and different hot charging temperature are effect significantly on preci…
The possibility of realizing highly tunable non-reciprocal devices with graphene is explored. Magnetically-biased graphene exhibits strong Faraday rotation at microwave frequencies and supports highly-confined edge magneto-plasmons at THz and infrared frequencies. The Faraday rotation direction and the edge along whic…
Single wall carbon nanotube reinforced yttria stabilized zirconia ceramic materials have been obtained by means of spark plasma sintering technique. Single wall carbon nanotubes were treated in an acid solution before mixing with zirconia powders to obtain a uniform distribution of both powders. This method allows obt…
The purpose of this research is to study the effect of heat input on microstructure and hardness of SKD 61 hot work tool steel by using Gas Metal Arc Welding (GMAW) process. The specimens made of SKD 61 steel plates were austenized and oil-quenched to room temperature, then they were double tempered. Base on identical…
The effect of bath temperature on the morphologies, crystallographic structure and adhesive strength of TiO2 nanotube arrays fabricated by electrochemical anodization of titanium in dimethyl sulfoxide containing hydrofluoric acid electrolyte were studied in this paper. The results show that the crystalline anatase TiO…
The transition-metal oxide(ZrO2, Fe2O3) and rare earth-metal oxide(La2O3, CeO2) promoted Ag/Al2O3 catalysts for selective catalytic reduction of NO by C3H6 were investigated. These catalysts were characterized by temperature programmed desorption of NO and O2 (NO-TPD and O2-TPD), N2 adsorption/desorption isotherms (BE…