摘要:
A heat-exchange element has a plurality of heat-exchange components each having a circular heat-exchange plate. The circular heat-exchange plate has a plurality of ribs projecting from a surface thereof and extending generally in one direction. The outer circumferential edge of the circular heat-exchange plate is divided into four substantially equal edges. The circular heat-exchange plate includes a pair of sealing ribs extending respectively along two diametrically opposite ones of the edges substantially parallel to the ribs, and a pair of end walls extending respectively along two other diametrically opposite ones of the edges substantially transversely to the ribs. The heat-exchange components are stacked into a cylindrical shape in which the end walls of each of the circular heat-exchange plates fittingly engage the sealing ribs of another one of the circular heat-exchange plates.
摘要:
The invention provides (i) a process for preparing tetracalcium phosphate particles, the process comprising the steps of (1) sintering or fusing a powder mixture at a temperature of not lower than 1,400.degree. C., the mixture comprising a powder of calcium source and a powder of phosphorus source in a Ca/P molar ratio of 2/1, and about 0.005 to about 5 parts of an aluminum compound, calculated as Al.sub.2 O.sub.3, per 100 parts of tetracalcium phosphate to be produced in terms of the theoretical amount, and (2) finely dividing the obtained product; (ii) tetracalcium phosphate particles prepared by said process; (iii) apatite-coated tetracalcium phosphate particles; (iv) a process for preparing the apatite-coated tetracalcium phosphate particles; (v) a tetracalcium phosphate-based setting composition; (vi) a composition for forming a hardening material using coated tetracalcium phosphate particles and an acidic aqueous solution; and (vii) the composition as defined in (vi) in which the acidic aqueous solution can satisfy the concentration relationships as represented below:(a) 25%.ltoreq.citric acid.ltoreq.50%(b) 30%.ltoreq.citric acid+phosphoric acid.ltoreq.70%(c) 10%.ltoreq.citric acid-phosphoric acid.ltoreq.50%
摘要:
An address management system which is integrally compatible to an plurality of communication services and a plurality of communication application programs, and a communication terminal which utilizes such an address management system are disclosed. The address management system comprises type of communication service table and address management table which stores a number of identification information of communication destinations and types of communication services available to the communication destinations and associated communication addresses, a request acceptance unit for accepting a communication address inquiry request command, a type of communication service discrimination unit which discriminates a type of communication service which the communication application program of the communication address inquiry requestor uses, a communication address retrieval unit which searches the address management table to retrieve a communication address in accordance with identification information of the communication address inquiry request and the discriminated type of communication service, and a response unit which sends the retrieved communication address back to the communication address inquiry requestor. A proper communication address can be obtained by merely designating the terminal name of the destination terminal by the communication application program without identifying the type of communication service.
摘要:
An earthquake-resistant crane including a plurality of girders supported on wheels for movement along rails includes a vertical vibration damping device to ensure safe operation of the crane. The vertical vibration damping device includes a resilient support for supporting the girders in a vertical direction, a vibration direction converting arrangement mounted between the girders and the wheels for converting vertical vibrations of the girders to a horizontal displacement of the wheels, and drive control device connected to the wheels. The vertical vibration damping device operates such that the vertical vibrations of the girders are converted to a horizontal displacement of the wheels to dissipate the energy of vibrations by the sliding friction produced between the wheels and the rails when the wheels move in the horizontal direction, whereby the amplitude of vibrations produced in response to the vertical vibrations of the girders can be reduced.
摘要:
A method and system for continuously regenerating dehumidifiers of a charcoal adsorber system are provided. Off-gas, including radioactive noble gases, such as xenon and krypton, is physically adsorbed in charcoal adsorbers and discharged to the atmosphere after its radioactivity has decayed. Before passing to the charcoal adsorbers, the off-gas is subjected to dehumidifiers consisting of a molecular sieve or some other desiccant. A couple of dehumidifiers is alternately used because periodic regeneration for the dehumidifier is necessary to recover moisture adsorption ability of the desiccant. The regeneration for the dehumidifier is completed by the steps of purging the dehumidifier with fresh air, and thereafter circulating the fresh air within a closed loop including a heater, dehumidifier, cooler condenser, and blower. Moisture absorbed in the dehumidifier is carried away by circulating heated fresh air and separated from the fresh air by cooling condensers. After completion of the regeneration, the fresh air is returned to the charcoal adsorber system for further treatment. By employing fresh air as regeneration gas, the regeneration for dehumidifiers can be completed faster and with less contamination as compared with a conventional method of employing off-gas for regeneration.
摘要:
A vehicle exterior monitoring device obtains position information of a three-dimensional object present in a detected region, divides the detected region with respect to an horizontal direction into plural first divided regions, derives a first representative distance corresponding to a peak in distance distribution of each first divided region based on the position information, groups the first divided regions based on the first representative distance to generate one or more first divided region groups, divides the first divided region group with respect to a vertical direction into plural second divided regions, groups second divided regions having relative distances close to the first representative distance to generate a second divided region group, and limits a target range for which the first representative distance is derived within the first divided region group in which the second divided region group is generated to a vertical range corresponding to the second divided region group.
摘要:
A vehicle detecting system includes image taking means for taking an image of the surroundings of a subject vehicle, vehicle detecting means for detecting a vehicle from the taken image, and lateral-position detecting means for detecting a lateral position of the vehicle in the taken image. The lateral-position detecting means vertically divides, into a plurality of sections, a region set in a portion of the taken image in which an image of the vehicle is included or is presumed to be included. The lateral-position detecting means calculates average brightnesses of pixels belonging to pixel columns vertically extending in the sections and having a width corresponding to one pixel or a plurality of number of pixels. The lateral-position detecting means calculates differences in average brightness between pixel columns adjacent in a lateral direction, and detects the lateral position of the vehicle on the basis of absolute values of the differences.
摘要:
An environment recognition system includes image taking means for taking a pair of images of an object in a surrounding environment with a pair of cameras and outputting the pair of images, stereo matching means for conducting stereo matching on a plurality of pairs of images that are taken by different image taking methods or that are formed by subjecting the pair of taken images to different image processing methods and forming distance images respectively for the pairs of images, selection means for dividing the distance images into a plurality of sections, calculating representative parallaxes respectively for the sections, and selecting any of the representative parallaxes of the corresponding section as a representative parallax of the section, and detection means for detecting the object in the image on the basis of the representative parallaxes of the sections.
摘要:
A vehicle exterior monitoring device obtains position information of a three-dimensional object present in a detected region, divides the detected region with respect to an horizontal direction into plural first divided regions, derives a first representative distance corresponding to a peak in distance distribution of each first divided region based on the position information, groups the first divided regions based on the first representative distance to generate one or more first divided region groups, divides the first divided region group with respect to a vertical direction into plural second divided regions, groups second divided regions having relative distances close to the first representative distance to generate a second divided region group, and limits a target range for which the first representative distance is derived within the first divided region group in which the second divided region group is generated to a vertical range corresponding to the second divided region group.
摘要:
Provided is an ultraviolet-curable ink jet ink composition with excellent curability and storage stability, the composition containing a monomer A represented by Formula (I): CH2═CR1—COOR2—O—CH═CH—R3 (wherein R1 represents a hydrogen atom or a methyl group, R2 represents a C2-C20 divalent organic residue, and R3 represents a hydrogen atom or a C1-C11 monovalent organic residue); a (meth)acrylated amine compound; a hindered amine compound other than the (meth)acrylated amine compound; and a photopolymerization initiator.