摘要:
A problem of the invention is to provide a process of producing high purity terephthalic acid by selectively recovering p-toluic acid in wastewater which has hitherto been discarded and using it as a raw material of terephthalic acid.The invention is concerned with a process of producing high purity terephthalic acid, which is characterized in that a p-toluic acid recovery step of recovering p-toluic acid from a primary mother liquor and feeding it into an oxidation reaction step includes the following respective steps of: (I) an adsorption step of feeding, as a liquid to be treated, the primary mother liquor or a secondary mother liquor obtained by subjecting the primary mother liquor as cooled to solid-liquid separation into an adsorption tower filled with an adsorbing agent in which the breakthrough time of p-toluic acid is longer than the breakthrough time of benzoic acid to adsorb p-toluic acid and benzoic acid in the liquid to be treated to the adsorbing agent, (II) a feed stopping step of stopping the feed of the liquid to be treated into the adsorption tower at an arbitrary point of time of exceeding the breakthrough time of benzoic acid, (III) a desorption step of feeding a desorbing agent into the adsorption tower to desorb adsorbed p-toluic acid, and (IV) a circulation step of feeding p-toluic acid contained in the desorbing agent flown out from the adsorption tower into the oxidation reaction step.
摘要:
A conductor of an electric cable for wiring, containing a copper alloy material containing 1.0 to 4.5 mass % of Ni, 0.2 to 1.1 mass % of Si, and the balance of Cu and unavoidable impurities, in which the copper alloy material has an average grain diameter of 0.2 to 5.0 μm.
摘要:
An apparatus including a substrate and a card element to be installed on the substrate includes a first plane which inclines at a predetermined angle with respect to the substrate; a second plane which is provided on the card element, inclines at the angle with respect to the substrate, and slides on the first plane in a direction corresponding to the angle; a first terminal which is provided on the substrate, and inclines at the angle with respect to the substrate; and a second terminal which is provided on the card element, inclines at the angle with respect to the substrate, and connects with the first terminal.
摘要:
To provide a digital correlated double sampling circuit having a plurality of functions such as flaw compensation, shading compensation and the like specific to CCD, said functions being added to a correlated double sampling circuit.A solid-state image-pickup device signal processing apparatus comprising a solid-state image-pickup device, an amplifier for amplifying an output signal of said solid-state image-pickup device, an D/A conversion circuit for converting an-analog output signal of said amplifier to a digital signal and a digital correlated double sampling circuit for removing noises by performing a subtraction process between a field-through portion and its directly subsequent video signal portion of a digital output signal of said D/A conversion circuit, wherein said digital correlated double sampling circuit has an optional-value direct current signal added to said video signal portion and variably controls said optional-value direct current signal for each frame or each of said video signal portions.
摘要:
A portable type information processing terminal device is provided which includes a substrate carrying a substantially annular antenna coil thereon, a signal processing integrated circuit element arranged inside the antenna coil, a magnetic plate arranged under the substrate and a metal plate arranged under the magnetic plate, which are integrally formed and arranged on one or more than one metal parts including a battery pack. The metal plate is used to substantially regulate the resonance frequency of the antenna coil so that it is allowed to be arranged in a cabinet of the portable device.
摘要:
A nuclear medicine imaging system is configured so that a semiconductor element and a metallic conductive member are bonded to one another with an electrically conductive adhesive composed of electric conductive particles and a resin binder, and a charge which is generated when radiation is incident on the semiconductor element is taken as a signal by a detection circuit from the conductive member through the electrically conductive adhesive, and a current source unit for forcing a larger current than that due to a charge generated by incoming radiation to flow at least through the electrically conductive adhesive and a protection circuit for protecting the detection circuit from the larger current passed by the current source unit are provided.
摘要:
In a ZIF connector having first and second connectors, the first connector includes an operating member rotatably held by a first insulator portion holding first contacts arranged adjacent to one another in a predetermined direction. The second connector includes a floating member held by a second insulator portion to be rotatable and slidable in the predetermined direction. The floating member has a first and a second surface which face the first contacts and the operating member, respectively, in a mutually fitted state of the first and the second connectors. Second contacts have one parts held by the first surface and arranged adjacent to one another in the predetermined direction. The floating member is rotated in a first rotating direction to bring the second contacts into contact with the first contacts when the operating member is rotated in the mutually fitted state.
摘要:
The present invention relates to a novel compound which is useful as an agent for prevention and treatment of diseases associated with HDAC, in particular, tumor or cell proliferative diseases. The depsipeptide compound or its pharmaceutically acceptable salt of the present invention has a good HDAC inhibitory activity and an inhibitory activity of cell proliferation against human cancer cells and, therefore, is useful in treatment and improvement of diseases and pathogenic conditions associated with histone acetylation, in particular, tumor or cell proliferative diseases.
摘要:
In a ZIF connector having first and second connectors, the first connector includes an operating member rotatably held by a first insulator portion holding first contacts arranged adjacent to one another in a predetermined direction. The second connector includes a floating member held by a second insulator portion to be rotatable and slidable in the predetermined direction. The floating member has a first and a second surface which face the first contacts and the operating member, respectively, in a mutually fitted state of the first and the second connectors. Second contacts have one parts held by the first surface and arranged adjacent to one another in the predetermined direction. The floating member is rotated in a first rotating direction to bring the second contacts into contact with the first contacts when the operating member is rotated in the mutually fitted state.
摘要:
A laminate which contains the following layers:(I) a stretched microporous resin film base layer having an opacity of at least 80%;(Ia) a heat sealable adhesive resin layer on the back side of the base layer;(II) a gas barrier resin film layer on the surface side of the base layer; and(III) an inorganic oxide thin film layer on the surface side of the gas barrier resin film layer,wherein the laminate:(i) has a water vapor permeability of at most 5 g/m.sup.2 .multidot.24 hr, and(ii) has an oxygen permeability of at most 5 cc/m.sup.2 .multidot.24 hr.multidot.atm.The laminate is useful, for example, for packaging a variety of articles, e.g., edible products, in which taste and freshness are desirably preserved during transportation and storage thereof.