Materials Literature
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The results of the first Critical Assessment of Fully Automated Structure Prediction (CAFASP-1) are presented. The objective was to evaluate the success rates of fully automatic web servers for fold recognition which are available to the community. This study was based on the targets used in the third meeting on the C…
An icosahedral quasicrystalline phase was found to precipitate as a primary phase from the supercooled liquid in the Zr65Al7.5Ni10Cu17.5−xPdx (x=5 and 10 at%) amorphous alloys. No icosahedral phase is formed for the present Zr65Al7.5Ni10Cu17.5 alloy and hence the addition of Pd promotes the precipitation of the icosah…
Control of the microarchitecture in a metallo-supramolecular double-helical array results from inter-strand edge–face π-stacking interactions which pull the ligand strands together thereby creating two distinct helical grooves (major and minor).
The compound ${\mathrm{La}}_{1/3}{\mathrm{Ca}}_{2/3}{\mathrm{MnO}}_{3}$ has been studied in the temperature range from 1.5 to 400 K. The anomalous behavior of the resistivity, magnetic susceptibility, specific heat, and lattice parameters are the signature of a charge-ordering transition taking place at around 270 K.…
Reports of the synthesis of new dendrimers containing organometallic fragments have increased dramatically over the past few years and examples of dendrimers containing many different metals are now known. This article highlights some of the the ways in which transition metals and their ligand systems have been incorp…
Americanae nace como un proyecto conjunto que surge dentro de la Red Europea de Información y Documentación sobre América Latina (REDIAL), y que ha afrontado la Biblioteca de la Agencia Española de Cooperación Internacional para el Desarrollo (AECID). Esta nueva biblioteca virtual hace más accesibles los libros digita…
A spin cast film of poly(2,6 dimethyl-1,4-phenylene oxide) [PPO, also known as PPE, poly(phenylene ether)] was analyzed by XPS using monochromatic Al Kα excitation. The measured atomic composition closely matched the expected stoichiometry of the polymer. Peak positions of the individual chemically shifted C 1s and O…
Crystal structures of Ba 2 In 2 O 5 , Ba 2 (In 1−x Ga x ) 2 O 5 (X=0.20, 0.25, 0.30, 0.35, 0.40, 0.45), and (Ba 1−x La x )In 2 O 5 (X=0.20, 0.30, 0.40, 0.50) were analysed and electrical conductivity were measured. Rietveld analysis indicated that Ba 2 In 2 O 5 belongs to orthorhombic Ibm2 space group at room temperat…
Non-oriented 3% silicon steel sheets were cold-rolled to 0.1 mm thick by various methods, and then they were finally annealed in an argon atmosphere for 1.5 hours at 900/spl deg/C with a cooling rate of 0.025/spl deg/C/s. Their magnetic properties changed depending on cold-rolling method used. A sample which had magne…
我々は, おからを原料として炭酸カリウムを賦活剤に用いて活性炭の製造を試みた.その結果, 炭化・賦活温度800℃で比表面積2,656m2/gという大きな比表面積を有する活性炭を製造できた.そして, 賦活機構について検討したところ以下のことが明らかとなった.まず, 含浸, 乾燥過程でおからと炭酸カリウムとの反応により炭酸カリウムは超酸化カリウム, シュウ酸カリウムに変化した.そして, おからは, 改質され, 低分子化され水溶性の有機成分が増加した.その結果, 炭化・賦活温度500℃までのおからの重量減少挙動が変化して, おから単独の炭化物の細孔構造とは異なり大きな比表面積を有する炭化物となった.さらに温度が上昇し, 700℃になると…
Kinetics and mechanism of oxidation of L-serine by manganese(III) ions have been studied in aqueous sulfuric acid medium at 323 K. Manganese(III) sulfate was prepared by an electrolytic oxidation of manganous sulfate in aqueous sulfuric acid. The dependencies of the reaction rate are: an unusual one and a half-order o…
The linear thermal expansion coefficients (LTEC) of silica glasses produced by the Nippon Glass lnc. Ltd. have been measured in the temperature range 0 ∼50°C using an interferometric dilatometer. The measurement system consists of a double-path optical heterodyne interferometer and a compact vaccum thermal bath contro…
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 Song-Ho Chong, Fumio Hirata; Mode-coupling theory for molecular liquids based on the interaction-…
"Physiologic Effects of Wearing Corsets: Studies with Reenactors." Dress, 26(1), pp. 63–70
The hydrolytic decomposition of dichlorodifluoromethane (CFC-12) on modified zirconium oxide surfaces and on charcoal has been studied. The reaction was carried out under flow conditions at 450 °C. Complete CFC-12 conversion was obtained by employing a molar excess of water in the gas phase which depresses the formati…
The effect of chain extender chemical structure on the physical and mechanical\nproperties of thermoplastic polyurethane/urethaneurea elastomers was systematically\ninvestigated.\nSeveral series of materials were synthesised using 4,4' -diphenylmethane diisocyanate\n(MDI) and poly(tetramethylene oxide) glycol (PTMG),…
We report the fabrication of a high-concentration Er-doped phosphate-niobate glass. The glass composition has been optimized for doping with erbium and for ion-exchange processing. Formation and modelling of planar ion-exchanged waveguides with silver and potassium dopants are also presented to confirm that this glass…
BaSno.9Sbo.1O3 /Ti electrodes were prepared by painting a slurry containing the oxide, synthesised by high-temperature solid state reaction, and Triton X-100 on titanium supports. The electrochemical behaviour of the electrodes was studied by cyclic voltammetry. From the voltammetric data the electrodes surface roughn…
A new method for the deposition of polypyrrole (PPY) thin films on a metal oxide surface through a grafting polymerization has been developed for the purpose of enhancing adhesion of the deposited PPY films to the substrates.
The a -axis electrical resistivity and the transverse magnetoresistance (aT-MR ) of stage-2 to 6 graphite intercalation compounds (GICs) have been measured in the temperature ( T ) range between 4.2 and 300 K and magnetic field ( H ) range between 0 and 7 kOe. The data are analysed together with the results of c -axis…