摘要:
A carbonaceous material having a total pore volume of from 0.5 to 1.5 cm3/g per unit mass, a volume of micropores having diameters of from 10 to 20 Å of from 10 to 45% based on the total pore volume, a volume of mesopores having diameters of from 20 to 200 Å of from 35 to 65% based on the total pore volume, a volume of macropores having diameters exceeding 200 Å of not more than 15% based on the total pore volume, and a specific surface area of from 1,000 to 2,500 m2/g. The carbonaceous material is incorporated into an electric double layer capacitor to provide increased capacitance.
摘要:
L-Ascorbic acid-2-O-maleic acid-&agr;-tocopherol diester.1-propanol adduct or its pharmacologically acceptable salt; cosmetic components, antioxidants, radical scavengers, anti-inflammatory agents and elastase inhibitors containing the same as the active ingredient; and a process for producing the above-described adduct characterized by comprising extracting a solution containing L-ascorbic acid-2-O-maleic acid-&agr;-tocopherol diester with a solvent, distilling off the solvent, and adding to the residue 1-propanol mixed with an organic solvent followed by crystallization.
摘要:
Decarbamylases are provided capable of producing D-.alpha.-amino acids by hydrolysis of N-carbamyl-D-.alpha.-amino acids. A source of the decarbamylases is recombinant microorganisms produced by gene manipulation methods. Decarbamylases having improved thermostability can be obtained in which amino acids at a thermostability-related site of a natural decarbamylase have been replaced with other amino acids by mutating a DNA fragment encoding the natural decarbamylase. Recombinant DNA is obtained from a vector DNA and a DNA fragment encoding a natural decarbamylase where the nucleic acid sequence encoding an amino acid at a thermostability-related site is replaced with a nucleic acid sequence encoding another amino acid. The recombinant DNA is used to produce transformants that produce thermostable decarbamylases. The decarbamylases may be immobilized in purified, partially-purified or crude form or in the form of decarbamylase-containing microbial cells on a support such as a polymer having ion exchange groups or covalent bonding groups. The presence of an antioxidant such as dithiothreitol results in an immobilized decarbamylase preparation that can be repeatedly used 30 times or more.
摘要:
A vehicle speed control device for providing constant speed traveling including a main switch circuit for enabling the constant speed traveling, a CPU coupled to the main switch circuit for providing a constant speed traveling control signal, and an actuator for activating a throttle value coupled thereto in response to the control signal output by the CPU. An electromagnetic relay coupled to the actuator inhibits the actuator in response to several signals including a signal from a timer circuit and the timer circuit provides its signal for a time after the start of the engine of the vehicle that is related to a sensed temperature in the engine.
摘要:
A printed circuit board having a circuit pattern formed on at least one of the first and second faces of a substrate and having characters and symbols representing components to be mounted on said substrate printed on the first face and the second face of the substrate, wherein the characters printed on the first face have been printed in the reversed images in about the corresponding positions of the back face. Since the characters printed on the first face of the printed circuit board are also printed in the reversed images in the immediately corresponding positions of the second face of the board, these characters can be used as indexes to find a particular position on the printed circuit board, and the first or second face can be instantly distinguished from the second or first face. The present invention also provides a method for the fabrication of a printed circuit board comprising the steps of printing on the first face of a substrate which has a circuit pattern formed on at least one of the first and second faces of the substrate with a first printing plate on which characters are disposed, preparing a second printing plate having the reversed character images by turning over the above first printing plate to reverse the normal characters, and printing the reversed character images on the second face of the substrate with the second printing plate.
摘要:
A program schedule generating device includes a program schedule individual data generating unit that generates program schedule individual data including graphics rendering definitions for using raw material data to form images indicating display information, and raw material data reference information indicating the positions on video memory at which the raw material data used in the graphics rendering definitions are stored, a program schedule display list generating unit that generates a program schedule display list indicating the positions at which to display the image rendered on the basis of the program schedule individual data for each item of the program schedule individual data, and a rendering unit that renders the image for each program by use of the raw material data on the basis of the program schedule individual data and places the rendered image on the basis of the program schedule display list, thereby generating the screen data for a program schedule screen.
摘要:
Disclosed are an image generating apparatus and an image generating method with which the size of a storage region required to display animated images can be suppressed. In the image generating apparatus (1), processing blocks (12, 16, 17) configuring an image generation unit obtain object data segment (130p) and a display operation pattern to be applied to the object data segment (130p) from data storage units (13, 14), in accordance with a specified picture-plane configuration information item (150i) , and generate animated images of the object data segment (130p) in accordance with the object data segment (130p) and the display operation pattern.
摘要:
To provide a process for safely producing a perfluoroacyl peroxide with good productivity.By supplying a perfluoroacyl halide-containing organic solvent solution, an aqueous solution of hydrogen peroxide or a metal peroxide, and an aqueous basic alkali metal compound solution to a tubular reactor to allow them to react with one another, in a flow rate ratio of, as represented by molar ratio of the compounds in the solutions, from 1.00 to 1.35 of the basic alkali metal compound and from 0.60 to 40 of hydrogen peroxide or the metal peroxide per 1 of the perfluoroacyl halide, the yield of a perfluoroacyl peroxide based on the material perfluoroacyl halide can be remarkably improved as compared with conventional technique.
摘要:
To provide a process for safely producing a perfluoroacyl peroxide with good productivity.By supplying a perfluoroacyl halide-containing organic solvent solution, an aqueous solution of hydrogen peroxide or a metal peroxide, and an aqueous basic alkali metal compound solution to a tubular reactor to allow them to react with one another, in a flow rate ratio of, as represented by molar ratio of the compounds in the solutions, from 1.00 to 1.35 of the basic alkali metal compound and from 0.60 to 40 of hydrogen peroxide or the metal peroxide per 1 of the perfluoroacyl halide, the yield of a perfluoroacyl peroxide based on the material perfluoroacyl halide can be remarkably improved as compared with conventional technique.
摘要:
A conduit structure for molten glass, a conduit system for molten glass, a vacuum degassing apparatus and a method for vacuum-degassing molten glass by use of the vacuum degassing apparatus, which are capable of effectively removing components eluted from a refractory brick forming a conduit for molten glass, foreign substances generated in the interface between molten glass and a platinum wall surface forming a conduit for molten glass, a bubble remaining in a surface layer of molten glass, a glass material denatured by volatilization, and the like, are provided.A conduit structure for molten glass, which is formed of a hollow pipe made of platinum or a platinum alloy, includes a double-pipe structure disposed in at least a downstream portion of the conduit structure, the double-pipe structure being formed of an inner pipe and an outer pipe; the inner pipe having an upstream end and a downstream end formed as open ends; the outer pipe having a downstream end formed as a closed end in a region located in a gap between the inner pipe and the outer pipe and as an open end in a region located in the inner pipe in the double-pipe structure; the conduit structure having an upstream end formed as an open end; and the outer pipe having an opening formed in a portion close to the downstream end thereof.