Abstract: In order to remove dust attached to a filter member 40 to surely clean the filter member 40, an analysis apparatus 100 includes: a sample containing part 10 that contains a sample; the filter member 40 through which gas produced from the sample heated in the sample containing part 10 passes; and a gas flow path L1 adapted to lead the gas having passed through the filter member 40 to an analyzer. In addition, the filter member 40 is formed in a tubular shape, and in one end part of the filter member 40, a gas lead-out port 40a connecting to the gas flow path L1 is formed. Further, it is configured that the gas passes through a side wall part 42 of the filter member 40 from outside to inside, and flows from the gas lead-out port 40a to the gas flow path L1.

Abstract: The present invention provides an oxidation catalyst for bleaching containing a component (a) which is an anion caused from a chelating agent having less than or equal to coordination position 5 and/or the chelating agent, and a component (b) which is a copper and/or manganese compound; and a binder compound (c); a hydrogen peroxide-based compound (d) which dissolves in water and generates hydrogen peroxide, the bleaching composition containing a granulated product or a molded product in which at least the component (b) and the component (c) are granulated or molded together. According to the invention, an oxidation catalyst that promotes the oxidation effect of hydrogen peroxide-based compounds with a trace amount of the composition, and has excellent effects of suppressing the decomposition of hydrogen peroxide-based compounds and suppressing coloration of the catalyst itself, and a bleaching composition containing the oxidation catalyst can be utilized.

Abstract: This invention is intended to make a crucible feeder mechanism simple in configuration, to realize low cost and to increase the number of accommodated crucibles while making the crucible feeder mechanism small in size. In the crucible feeder mechanism, the crucibles are mounted on an inclined mount surface 311 in parallel and a tapered guide surface guides 312b the crucibles sliding down the mount surface 311 to a crucible moving mechanism 313 provided at an outlet port of a guide member. This crucible moving mechanism includes an accommodation concave portion 3131X accommodating one of the crucibles and provided on a circumferential surface portion 3131a of the crucible moving mechanism. The crucible moving mechanism rotates and moves between an accommodation position at which the accommodation concave portion receives the sliding-down crucible and a feed position at which the accommodation concave portion communicates with a crucible feed port 314 and drops the sliding-down crucible.

Abstract: In a switching regulator, when a control switching signal received from outside is indicating PWM control, a second reference voltage generating circuit outputs, as a second reference voltage, a voltage that is lower than the minimum voltage of an output voltage range of an error amplifying circuit, so that output signals from a comparator are fixed at a high level. When a control switching signal received from outside is indicating VFM control, the second reference voltage generating circuit adjusts the second reference voltage according to the voltage difference between an input voltage and an output voltage, because the optimum second reference voltage varies according to the voltage difference between the input voltage and the output voltage.

Abstract: A racket string 10 of the present invention includes a synthetic fiber. The cross section is flattened by heating, compressing, and deforming the string after it has been formed, and an indentation is made in any part of the string. The flattened string is wound in a substantially non-twisted state. A method for producing the racket string includes heating the string at a temperature of Tg (° C.) or more and Tm ?10 (° C.) or less, where Tg (° C.) represents a glass transition point and Tm (° C.) represents a melting point of a main synthetic fiber constituting the string, compressing and deforming the string between rollers 7a and 7b that are arranged with a predetermined clearance therebetween; and then cooling and winding up the string.

Abstract: The present invention provides an oxidation catalyst for bleaching containing a component (a) which is an anion caused from a chelating agent having less than or equal to coordination position 5 and/or the chelating agent, and a component (b) which is a copper and/or manganese compound; and a binder compound (c); a hydrogen peroxide-based compound (d) which dissolves in water and generates hydrogen peroxide, the bleaching composition containing a granulated product or a molded product in which at least the component (b) and the component (c) are granulated or molded together. According to the invention, an oxidation catalyst that promotes the oxidation effect of hydrogen peroxide-based compounds with a trace amount of the composition, and has excellent effects of suppressing the decomposition of hydrogen peroxide-based compounds and suppressing coloration of the catalyst itself, and a bleaching composition containing the oxidation catalyst can be utilized.

Abstract: This invention is intended to make a crucible feeder mechanism simple in configuration, to realize low cost and to increase the number of accommodated crucibles while making the crucible feeder mechanism small in size. In the crucible feeder mechanism, the crucibles are mounted on an inclined mount surface 311 in parallel and a tapered guide surface guides 312b the crucibles sliding down the mount surface 311 to a crucible moving mechanism 313 provided at an outlet port of a guide member. This crucible moving mechanism includes an accommodation concave portion 3131X accommodating one of the crucibles and provided on a circumferential surface portion 3131a of the crucible moving mechanism. The crucible moving mechanism rotates and moves between an accommodation position at which the accommodation concave portion receives the sliding-down crucible and a feed position at which the accommodation concave portion communicates with a crucible feed port 314 and drops the sliding-down crucible.

Abstract: In a switching regulator, when a control switching signal received from outside is indicating PWM control, a second reference voltage generating circuit outputs, as a second reference voltage, a voltage that is lower than the minimum voltage of an output voltage range of an error amplifying circuit, so that output signals from a comparator are fixed at a high level. When a control switching signal received from outside is indicating VFM control, the second reference voltage generating circuit adjusts the second reference voltage according to the voltage difference between an input voltage and an output voltage, because the optimum second reference voltage varies according to the voltage difference between the input voltage and the output voltage.

Abstract: An element analyzer D comprises a combustion section 1 for burning a sample S, a sample injection member 2 for injecting the sample S into the combustion section 1, and a detection section 29 for measuring a gasified sample formed by burning the sample S in the combustion section 1. The element analyzer D further includes a cleaning-agent injection member 2 for injecting a cleaning agent W into the combustion section 1.

Abstract: An element analyzer D comprises a combustion section 1 for burning a sample S, a sample injection member 2 for injecting the sample S into the combustion section 1, and a detection section 29 for measuring a gasified sample formed by burning the sample S in the combustion section 1. The element analyzer D further includes a cleaning-agent injection member 2 for injecting a cleaning agent W into the combustion section 1.

Abstract: Natural rubber containing viscosity stabilizers is treated under drying conditions to result in 10% or less of the difference of gel content and 85% or more of molecular weight retention between before and after drying, and methods for manufacturing natural rubber comprise treating under drying conditions to result in 10% or less of the difference of gel content and 85% or more of molecular weight retention between before and after drying.Natural rubber containing viscosity stabilizers is treated with a strainer, and methods for manufacturing natural rubber comprise treating with a strainer after compounding hydrazide stearate into the natural rubber.Gelation (storage hardening) is suppressed and a decrease in molecular weight is prevented.

Abstract: Natural rubber contains a viscosity stabilizer for the natural rubber, and the viscosity stabilizer includes a hydrazide compound of the following general formula,R--CONHNH.sub.2wherein R is an alkyl group having 1 to 5 carbon atoms or a cycloalkyl group having 3 to 5 carbon atoms. As a result, gelation (storage hardening) is suppressed and a decrease in molecular weight is prevented.

Abstract: In mixed analog/digital integrated circuit constructed by an analog unit, typically an A/D converter, which processes an analog signal and converts it into a digital signal, a digital unit for processing the digital signal, and a clock signal generator for supplying operating clock signals to the analog unit and the digital unit, a clock signal stop circuit for stopping an operating clock signal supplied to the digital unit during an operation of the analog unit is provided, thus adverse effect on the analog unit by the digital noise generated by the digital unit is eliminated.

Abstract: A low heat generation type rubber composition is disclosed, which comprises at least one rubber selected from the group consisting essentially of natural rubber and a synthetic diene rubber, a reinforcing filler, and a thiadiazole compound expressed by the following general formula: ##STR1## in which R.sub.1 and R.sub.2, which may be the same as or differ from each other, denote a mercapto group, an amino group and a trifluoromethyl group. The reinforcing filler and the thiadiazole compound are contained in amounts of 20 to 150 parts by weight and 0.1 to 10 parts by weight, respectively.

Abstract: A rubber composition containing a specifically limited imidazole compound or imidazoline compound, or benzimidazole or its specifically limited derivative has a large tan .delta. at high temperature range, and a tire having a tread using such rubber composition is prevented from being lowered in the value of tan .delta. due to the temperature rising during the running and has an improved grip performance during the high speed running. The use of Bronsted acid in combination with the imidazole, imidazoline or benzimidazole can obviate the drawback of poor scorch resistance of a rubber composition containing the imidazole, imidazoline or benzimidazole alone, and the resulting rubber composition has a very large tan .delta. at high temperature range, and a tire having a tread using the rubber composition has a remarkably improved grip performance during the high speed running.

Abstract: A rubber composition having improved reinforcing properties and low heat build-up is disclosed, which comprises 20-150 parts by weight of carbon black having IA of not less than 60 mg/g and DPB of not less than 75 ml/100 g and 0.1-3 parts by weight of at least one of p-nitroso-N-methylaniline, p-nitroso-N-ethylaniline and p-nitroso-N-propylaniline, based on 100 parts by weight of rubber.

Abstract: This invention relates to a novel rubber composition having improved green properties such as high green tensile strength and high green modulus and improved hysteresis loss and cut growth property, which comprises 100 parts by weight of a diene rubber, about 20 to about 00 parts by weight of a reinforcing filler, about 0.1 to about 3.0 parts by weight of a nitroso compound having the formula (I) ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, are selected from the group consisting of a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, a hydroxyalkyl group having from 1 to 6 carbon atoms, a cycloalkyl group and an aryl group and about 0.1 to about 3.0 parts by weight of an halogenated organic compound having the formula (II) ##STR2## wherein R.sub.3 is selected from the group consisting of a hydrogen atom, a methyl group, a chlorine atom and a bromine atom and X is a chlorine atom or a bromine atom.

Abstract: A rubber composition in which a metal salt between a resin acid and cobalt is blended in a content of from 0.05 to 0.7 part by weight in terms of the content of a metal element with respect to 100 parts by weight of rubber containing not less than 70% by weight of at least one rubber of natural rubber and a synthetic polyisoprene rubber; as the metal salt is used a cobalt resinate which has a melting point in a range of 140.degree. to 180.degree. C., an oxidation degree of not more than 60% in a gas chromatography (GLC), and not more than 2,000 ppm of a sulfur concentration in the metal salt; when the metal salt is divided into a dissolved portion and an undissolved portion by using toluene and water, the undissolved portion in both toluene and water has a characteristic absorption of around 3,600 cm.sup.-1 in an infrared absorption spectrum (IR); and when elevated in temperature at a rate of 5.degree. C./min.

Abstract: A pneumatic radial tire comprising: (1) a cylindrical tread portion; (2) side portions located at both sides of the tread portion and extending inwardly in the radial direction; (3) bead portions located at the inner edge portions of the side portions; (4) a carcass comprising at least one ply which is reinforced with a belt arranged on the inside of the tread portion, wherein said belt and/or said carcass ply is reinforced by steel cords; and (5) a rubber composition surrounding the steel cords, wherein said rubber composition comprises: (a) 100 parts by weight of at least one rubber selected from the group consisting of natural rubber and dienic synthetic rubber; (b) 0.1-5.0 parts by weight of alkadiene sulfone; and (c) 0.05-1.0 parts by metal weight of at least one metal salt of an organic acid selected from the group consisting of cobalt salt of an organic acid and nickel salt of an organic acid.

Abstract: A polybutadiene rubber composition having an improved green strength is disclosed, which comprises a polybutadiene having a content of cis-1,4 bond of at least 70%, an average chain length of 1,4-bond of 110.about.450 and a molecular weight distribution represented by a ratio of weight-average molecular weight to number-average molecular weight of not less than 5.0.