Abstract:
Apparatus 1 for evaluating catalyst performance according to the invention comprises a reaction vessel 2 in which a plurality of catalysts S are disposed at a distance, supply pipes 3 for supplying a reactant gas into the reaction vessel 2, a plurality of measuring instruments 7 provided with gas sensors 71 for sensing the gas formed by the contact of the reactant gas with a plurality of catalysts S, and outputting signals according to the kinds and concentrations of the formed gas, and a calculating unit 8 for receiving the output signals from the plurality of measuring instruments 7 and identifying the kinds of the formed gas and calculating the concentrations thereof. With such a constitution, performance evaluation on a plurality of catalysts can be made concurrently, quick and in simple steps.
Abstract:
A separator for alkaline secondary batteries comprising a porous sheet comprising organic fiber 1, a binder resin 4, and ion-exchange fine powder 3, wherein the ion-exchange fine powder 4 is adhered to the porous sheet with the binder resin 3 that infiltrates and seals the fine voids 2 or slits provided on the surface of the organic fiber 1 of the porous sheet, and wherein the ion-exchange fine powders do not fall out, electrolyte retention is excellent, and ion-exchange performance can be exhibited for a long time; and an alkaline secondary battery using the above-mentioned separator. The surface of the olefin-based finer 1 is provided with fine voids 2 and slits on its surface. The fine voids 2 and slits are formed by etching the olefin-based fiber with an organic solvent. The binder resin 3 is adhered to the porous sheet in a manner in which the binder reins partially infiltrates the fine voids 2 or slits while projecting outwards. On the tip of the projecting part, the ion-exchange fine powder 4 is fixed. As the binder resin 3, styrene―ethylene― butylene―styrene (SEBS) thermoplastic copolymer is preferred.
Abstract:
A high-resolution patterning method of a resist layer is disclosed by patternwise irradiation of the resist layer with electron beams utilizing a methanofullerene compound as the electron beam resist material, which is graphitized and made insoluble in an organic solvent by the electron beam irradiation in a dose of, for example, 1 × 10 -4 C/cm 2 or larger. The thus formed resist layer is highly resistant against dry etching to ensure utilizability of the method in the fine patterning work for the manufacture of semiconductor devices.
Abstract translation:抗蚀剂层的高分辨率图案化方法通过利用电子束利用亚甲基富烯(methanofullerene)化合物对抗蚀剂层进行图案式照射而被公开,该亚甲基富勒烯化合物作为电子束抗蚀剂材料,其通过电子束照射以石墨化并且不溶于有机溶剂 剂量例如为1×10 -4 C / cm 2或更大。 由此形成的抗蚀剂层对干法蚀刻具有高度耐受性,以确保该方法在用于制造半导体器件的精细图案化工作中的可用性。
Abstract:
A manganese-based composite oxide single crystal of the chemical composition (LaxSr 1-x ) y + 1 Mn y 0 3y+1 , in which the subscript x is a number in the range from 0.3 to 0.5 and the subscript y is a number substantially equal to 1 or 2, having, differing from a conventional perovskite structure, a single-layered or double-layered laminar structure, respectively, exhibits a very unique magnetic resistance behavior so that it is promising as an element in a memory switching magnetic resistance device. The single crystals can be prepared from the oxides of respective elements by reacting and sintering a powder blend of an exact blending proportion into a sintered body which is subjected to the process of single crystal growing by the method of floating zone melting.
Abstract:
A grain boundaryless crystalline body of a perovskite structure having a chemical composition of the general formula:
La 1-X Sr X MnO 3
in which x is 0.168 to 0.178 which may be prepared by sintering a powder blend of the oxides of the respective elements and subjecting the sintered body to the process of crystal growth by the floating zone melting method, exhibits a phase transition of the crystalline structure under application of a magnetic field at a temperature of 60 to 350 K. The phase transition is reversible with a phenomenon of hysteresis to provide a possibility of obtaining a memory switching-type magnetoresistance element.
Abstract:
A novel synthetic mixed-layer silicate consisting of layers of serpentine and layers of saponite each having a specified chemical composition has excellent dispersibility in water to form colloidal dispersions capable of being converted into gels by standing so as to be useful as a gelating agent exhibiting thixotropy along with unique porosity characteristics which enable use as an adsorbent. The mixed-layer silicate is prepared by a process comprising the steps of: (a) preparing an acidic aqueous solution containing silicic acid, magnesium salt and aluminum salt; (b) alkalifying the solution by the addition of an alkaline compound to precipitate a hydrous composite oxide containing silicon, magnesium and aluminum; (c) collecting the precipitates of the hydrous composite oxide; (d) admixing the precipitates of the hydrous composite oxide with an aqueous solution of an alkali metal hydroxide to give an aqueous slurry; and (e) subjecting the aqueous slurry of the hydrous composite oxide to a hydrothermal treatment by heating at a temperature up to 500 °C.
Abstract:
In a comb-like or wedge-like electron emitting device, an emitter or both an emitter and an anode electrode are processed from a single-crystal silicon thin film of an SOI wafer. The single-crystal silicon thin film in portions other than the processed portion is removed so that the silicon oxide layer is dug down further slightly. A gate electrode for applying an electric field in order to draw electrons out of the emitter is provided in the dug-down portion. When the end and side faces of the emitter are formed as (111) faces by anisotropic etching in the condition that the single-crystal silicon thin film is oriented to a (100) face, the emitter has a sharp edge at about 55° with respect to the substrate. In a conical electron emitting device, the gate electrode is constituted by a single-crystal silicon thin film of an SOI wafer so that a pyramid surrounded by the (111) faces is formed on the single-crystal silicon substrate.
Abstract:
A process for the production of hydrocarbons having 2 or more carbon atoms by oxidative coupling of methane includes a step of contacting a feed gas containing methane with an oxide of metals having the following composition: MCo 1-x Fe x O Y wherein M stands for at least one alkaline earth metal x is a number greater than 0 but not greater than 1 and y is a number in the range of 2.5-3.5, at a temperature of 500-1000 °C.