Materials Literature
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Brushite (BR) and hydroxyapatite (HA) nanoparticles were fabricated through reverse microemulsion and hydrothermal processing route, respectively. The processing routes influenced nucleation and crystal growth although both methods resulted in nanorods formation. The calcium-to-phosphate ratio was 1.67, similar to tha…
Employing hybrid HF/DFT functional in conjunction with the relativistic effective core potential for Pu atoms and all-electron basis set 6-311g（d） for O atoms, the equilibrium geometrical structures of PuO, PuO2 and Pu2O3 molecules are obtained in the geometry optimization. The infrared and Raman spectra are also calc…
We have implemented a new multilevel parallel decomposition in the Denovo discrete ordinates radiation transport code. In concert with Krylov subspace iterative solvers, the multilevel decomposition allows concurrency over energy in addition to space-angle. The original space-angle partitioning in Denovo placed an eec…
二潜在的新奇环境地友好的无灰的蔬菜油添加剂， 2-mercaptobenzothiazole 衍生物，di-n-dodecyl-[2-( 2-benzothiazolyl ) thio ] ethylborane ( LBN )和di-n-dodecylthio-[2-( 2-benzothiazolyl ) thio ] ethylborane ( LBNS )，被综合，他们在油菜籽的添加剂上油的 tribological 表演( RSO )被评估用一四球穿测试者。他们的防腐蚀的性质和热稳定性也被检验。钢球的穿的表面借助于扫描电子显微镜学(SEM ) 和 X 光检查光电子光谱学(XPS ) 被分析。结果证明 2-mercapto…
has been measured between 4.2 K and 0.3 K in fields up to 3.4 Tesla. The data can be described by variable-range hopping (VRH) in a magnetic field and by postulating a second transport mechanism independent of the magnetic field. A model based on orbital shrinking of the localized wavefunction (positive MR) and on a Z…
The initial experiments conducted in the late 1960's at Radiation Dynamics, Inc. (now IBA Industrial, Inc.) showed that by removing the pigment from a radiation curable coating formulation, the same binder system could be used as a matrix system for electron beam (EB) cured fiber reinforced composites. Recently, the b…
Chlorine-free CuO/AC,Cu2O/AC,and Cu0/AC catalysts(AC:activated carbon) were prepared by heat treatment of Cu2(NO3)(OH)3/AC in an inert atmosphere,and their catalytic properties for the direct vapor-phase oxidative carbonylation of methanol to dimethyl carbonate(DMC) were investigated.When the Cu2(NO3)(OH)3/AC was heat…
In this contribution we consider the occurrence and the origin of parasitic currents in the DNS (direct numerical simulation) VOF (volume of fluid) code Free Surface 3D (FS3D) for isothermal, incompressible two-phase flows in 3D. Up to now, the presence of parasitic currents has limited the range of phenomena accessib…
Le développement de nouveaux alliages, caractérisés par un rapport résistance-poids élevé et par un faible coût de production est un des objectifs majeurs de l'industrie de l'automobile afin de réduire les émissions de CO2 en réduisant le poids des pièces tout en conservant les propriétés mécaniques à haute températur…
Bulk heterojunction polymer solar cells, based on thin films of polymer/fullerene blends, have progressed rapidly during the past few years. Efficiencies over 6% have been achieved in research labs. In this chapter, a brief review on recent progress was given by focusing on polymers over 3% efficiency in bulk heteroju…
廃棄物溶融炉で用いられるクロム含有耐火物は優れた耐食性を示すが，その一方で，スラグとの反応により6価クロム化合物を生成する懸念がある。本研究では，Cr2O3粉末にCaO, SiO2, Al2O3粉末を混合し，加熱温度を変化させた加熱試験を行った。その結果，1,300～1,500℃で2時間加熱した後水冷した試料中に，XRD分析により6価クロム化合物であるCa4A16CrO16が検出された。これより，1,300℃以上の高温域では，CaCrO4がAl2O3により安定化されていることが示唆された。また，この化合物には溶出性があることがわかった。回転侵食試験で得られた水冷スラグ断面のEPMA分析により，耐火物から剥離したと思われるCr2O3…
The effect of preliminary removal of silica from raw material was studied as well as that of the use of a new activating agent (carbamide) on the properties of porous carbonaceous material, obtained by chemical activation of rice husks. Two different approaches have been applied to prepare the porous carbonaceous mate…
(2). Even though water constitutes less than 10% of the final product, it acts as a carrier throughout the production process. Depending on the type of process, water is used from the initial stage of debarking, through pulping, washing, bleaching and papermaking with between 1 and 16 m3/tonne used at any stage. In ad…
Two new iridoids floribundane A (1) and floribundane B (2) and the known compounds lupenone (3), scopoletin (4) and 4,5-dihydroblumenol A (5) were isolated from trunk bark and leaves of Hymenodictyon floribundum B.L. Rob. The structures of all compounds were established from their spectroscopic data.
Copper was electrodeposited directly onto a 5 nm thick physical vapor deposited tantalum (Ta) diffusion barrier layer in a copper–ammonium–citrate bath. An anodic potential was applied to Ta in a saturated KOH solution to remove native Ta oxide before seedless copper deposition on Ta. The dense growth of copper films…
This research was designed to study the effects of chitosan and citric acid (CA) on pericarp browning and polyphenol oxidase (PPO) activity of longan fruit. The experiment was conducted by dipping longan fruit in 1.2% (w/v) chitosan coating solution containing 1.0% CA (pH 3.3) for 2 min, in 1.0% CA solution (pH 2.6) f…
The present study deals with experiments so as to highlight the solute (drug nimesulide) ‐ solvent(water) interactions and related modifications in case of the presence of hydrotropic agents at different temperatures T(=298.15 to 313.15)K. Density and viscosity values of nimesulide have been determined in water in (0.…
Ultra High Molecular Weight Polyethylene (UHMWPE) film is dip coated onto piranha and air–plasma treated silicon substrates, to study the effect of surface pre-treatment on the adhesion strength and the tribological properties of the film. After the pre-treatment, water contact angle measurements were conducted and th…
The magnetization reversal process for dot arrays is likely to start from a nucleation followed by propagation process. In this study, we estimated the nucleation diameter D n for dot arrays made from thin hcp-CoPt perpendicular films (thickness δ=3 nm) and Co/Pt multilayered films (δ=9 nm), respectively. The dot diam…
The triplet state of positronium, o-Ps, is used as a probe to characterize a starch-20% w/w sucrose matrix as a function of temperature (T). A two-step decomposition (of sucrose, and then starch) starts at 440 K as shown by a decrease in the o-Ps intensity (I(3)) and lifetime (τ(3)), the latter also disclosing the occ…