Materials Literature
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Ruthenium (Ru) is one of the major fission products contained in the High-Level Radioactive Waste (HLW). During reprocessing spent nuclear fuel, Ru is immobilized with the other fission products in borosilicate glass matrix. Japan Nuclear Fuel Limited (JNFL) currently operates a nuclear reprocessing plant in Japan whe…
Wrightia tinctoria Roxb. R.Br. (family Apocynaceae) bark ethanol extract and isolated steroidal alkaloid fraction (WTSA) was investigated on different experimentally induced diarrhea models of rats, isolated rat ileum, and on enteric bacterium to establish the therapeutic potential. The extract at 500 and 1000 mg/kg d…
This research work investigated the corrosion resistance of nickel plated medium carbon steel in cocoa liquor. It simulated the effect of continuous use of the material in a cocoa liquor environment where corrosion products are left in place. Medium carbon steel samples were nickel electroplated at 4V for 20, 25, 30,…
ABSTRACT: The pollution flashover performance of large tonnage insulators typically used in ±800 kV DC transmission lines were studied in this paper. As V string and double I string would probably be adopted in lines, the influence that structure exerts on pollution flashover voltage has been tested. Test results show…
Graphene shows unusual low-energy electronic excitations described in terms of Dirac fermions. The fractional quantum Hall effect in a bilayer graphene in different Landau levels within the supersymmetric formalism has been studied. The quantized Hall conductivity is found to be σ xy = ± (n+1)v e2 h , where n = 0, 1,2…
Strongly acidic sulfonovaný cation exchanger on polystyrene nanofibrous matrix (Nanospider TM technology) was prepared by simultaneous sulfonation and crosslinking. Weakly basic nanofibrous anion exchanger was prepared after transformation of sulfogroups to sulfochloride by reaction with ethylene diamine. Nanofibrous…
The possibility to reduce soot emissions by means of injecting diesel fuel through a porous injector is investigated. From literature it is known that better oxygen entrainment into the fuel spray leads to lower soot emissions. By selection of porous material properties and geometry, the spray is tunable such that a m…
Neutron irradiation embrittlement of reactor pressure vessel steels (RPVs) is one of the important material ageing issues. In Japan, almost 40 years have past since the first plant started its commercial operation, and several plants are expected to become beyond 40 years old in the near future. Thus, the safe operati…
A three-kilowatt turboshaft engine with a ceramic recuperator and turbine has been designed for small unmanned air vehicle (UAV) propulsion and portable power generation. Compared with internal combustion (IC) engines, gas turbines offer superior reliability, engine life, noise and vibration characteristics, and compa…
Polycrystalline Dy-doped SrTiO3 thin films deposited by pulsed laser deposition (PLD) on CeO2-buffered yttria-stabilized zirconia (YSZ) single crystal substrates showed oxygen sensing characteristics at room temperature. The oxygen gas sensing characteristics depended on the amount of Dy-doping, and 1.5 mol% Dy-doping…
The phase transformation due to mechanical loading in cold-rolled stainless steel 301LN sheets is investigated experimentally. A series of uniaxial tension experiments is performed to quantitatively investigate the effect of initial anisotropy on the martensitic transformation kinetics. Three methods are employed to m…
We report on anodic homopolymerization and copolymerization of aniline (Ani) and pyrrole (Py) on composite 2B pencil graphite in aqueous medium. The electrochemical syntheses of these polymers in para -toluene sulfonic acid with and without potassium chloride (KCl) are investigated. The presence of KCl in the medium h…
The interaction between the additive components chloride, accelerator, and suppressor is the focus of the present paper. Based on Frumkin and Damaskin's adsorption theory, an advanced concept for the superfilling mechanism is introduced. Cyclovoltammetry measurements show the additive impact on the current–potential b…
Automatic recognition of skin symptom plays an importance role in the skin diagnosis and treatment. Feature selection is to increase the classification performance of skin symptom. In this paper, the effects of feature selection on the classification of 4-class skin symptoms (chloasma, blackhead, freckled and comedone…
In view of the problems of using traditional monitoring method for SF6 gas leakage in electrical equipments, according to the photoacoustic spectrometry technology, the photoacoustic spectrometry experiment system is designed for detecting SF6 gas concentration. The generation of photoacoustic spectrum is presented, t…
Destructive oxidation of ethanol in the corona discharge reactor The results of investigation of ethanol destructive oxidation (model aliphatic alcohol) in a corona discharge reactor are presented. The process was performed at the temperature of 303 K in the corona discharge generator - the reactor system manufactured…
Some TiO2 powders, prepared from titanium(IV)tetraisopropoxide by the sol‐gel method and thermally treated between 100 and 1000∘C, have been characterized by X‐ray powder diffraction and by nitrogen adsorption and desorption at 77 K to calculate the BET‐specific surface area, from which the micropore volume and the ex…
Ca-P-O films were prepared by laser CVD using Ca(dpm)2 and (C6H5O)3PO metal organic precursors. The crystal phase of Ca-P-O films changed depending on deposition temperature (Tdep), total pressure (Ptot), laser power (PL) and molar ratio of Ca to P (RCa/P). β-TCP films in a single phase were obtained in a P-rich and h…
Abstract The electronic structure of a new type of polyoxometalate [Ti12Nb6O44]10− has been investigated using density functional theory (DFT). The calculations represent that the LUMO in fully oxidized [Ti12Nb6O44]10− delocalizes among the titanium (Ti) and niobium (Nb). Therefore, both Ti and Nb have the probability…
The aim of this study was to increase compatibility of immiscible PLA/PCL blend by using elec- tron beam irradiation in the presence of glycidyl methacrylate(GMA). The blends of PLA/PCL containing GMA were irradiated at doses of 10, 50 and 100 kGy and then the irradiated samples were characterized by observing morphol…