Abstract: A DC-feeding-voltage calculating apparatus includes storage that stores train model information including information for controlling a regenerative power reducing amount in a train in an electrified section; feeding network model information including position information on a substation; and substation model information including control information on a substation voltage. On the basis of: the stored information; a voltage value, current values of feeders by train direction, the voltage and current values being measured in the substation; and first train information on a train including a wireless communication apparatus, an estimator estimates second train information on a train not including a wireless communication apparatus and outputs train operation information.

Abstract: The present invention relates to improving precision in a gate-type moving device. The gate-type moving device includes: a base, a gate-type moving body that is placed on the base via an air layer and moves on the base in a non-contact state, and an air bearing that forms the air layer, wherein the gate-type moving body is comprised of two leg parts that stand on an upper surface of the base, a beam portion that connects the leg parts, and a beam-direction moving body that moves along the beam portion, the air bearing is provided at a rear surface of at least one of the leg parts, and comprises an air blowout port that opens toward an upper surface of the base and an air suction port that opens toward the upper surface of the base, and the air suction port sucks air around the air suction port.

Abstract: The present invention has an object to suppress an overshoot in the outlet temperature of a heat medium. A heat source machine controlling apparatus includes a computing unit and a set temperature changing unit. The computing unit calculates a load change rate using a predetermined arithmetic expression. The set temperature changing unit determines whether or not the load change rate calculated by the computing unit exceeds a predetermined threshold value. In the case where the load change rate exceeds the predetermined threshold value, the set temperature changing unit changes a set chilled water outlet temperature so as to suppress a change in a chilled water outlet temperature.

Abstract: A tire includes a pair of beads, a carcass, chafers, an insulation, and cushion layers. Each bead includes a core positioned inward of the bead in a radial direction. At an inside of the core in the radial direction, the insulation is laminated on the chafers so as to be located outward of the chafers in the radial direction. Each cushion layer is laminated on the insulation so as to be located outward of the insulation in the radial direction. The insulation and the cushion layer are formed from respective crosslinked rubbers different from each other. A compressive elastic modulus E?* of the crosslinked rubber of the cushion layer is smaller than a compressive elastic modulus E?* of the crosslinked rubber of the insulation.

Abstract: A slide caliper of this disclosure includes: a fine adjustment measurement part including: a finger-press type rotation part; and a supporter, wherein the finger-press type rotation part includes: a roller part including two disks; and a roller shaft part, wherein at least a portion of inner surfaces of the two disks and the main scale come into contact with each other by frictional force, wherein the roller bearing part includes: an inclined surface along which the roller shaft part is movable when the measuring force is applied; and a stopper disposed at a position where the stopper and the roller shaft part come into contact with each other, and when the measuring force is applied, the frictional force with respect to the roller part is reduced as the roller shaft part moves along the inclined surface while contacting with the stopper to limit the measuring force.

Abstract: An object of the present invention is to provide a heat source machine that can reduce the environmental load and can output the thermal energy with high temperature, and a method for operating the heat source machine. A heat source machine of the present invention includes a centrifugal compressor, condensers, expansion valves, and an evaporator, in which a refrigerant enclosed in a refrigerant circulation circuit configured by sequentially connecting the centrifugal compressor, the condensers, the expansion valves, and the evaporator contains a composition A, a composition B, or a composition C, the composition A has 4 or 5 carbon atoms, 6 or more fluorine atoms, and one or more oxygen atoms, the composition B has 4 or 5 carbon atoms and 6 or more fluorine atoms, the composition C has 3 carbon atoms, 2 chlorine atoms, 3 fluorine atoms, and an intramolecular double bond, and the composition A, the composition B, or the composition C has a boiling point of 20° C. or more and a critical temperature of 180° C.

Abstract: This chiller control device (74) is provided with: a storage unit (18) which stores operation data detected at each site in a turbo chiller; a compression unit (34) which, when the size of the operation data accumulated over time in the storage unit (18) becomes too large, converts the operation data each time a condition depending on the type of operation data is met, thereby compressing the data size; and a diagnostic unit (36) which evaluates the state of the turbo chiller on the basis of the operation data converted by the compression unit (34). By this means, the state of the chiller can be diagnosed without increasing the storage capacity of the storage medium that stores operation data of the turbo chiller.

Abstract: This turbo chiller includes a shell-and-tube condenser; a header along a length direction of a shell is installed on a refrigerant inlet of the condenser, and openings are formed at least on both end portions of the header in the length direction, which allows high-temperature and high-pressure refrigerant gas from a compressor to be smoothly and evenly distributed to both length-direction end areas in the shell of the condenser through the header.

Abstract: The air bearing includes a main body part having a bearing surface opposed to a guide face, first and second flow path parts, which are provided in the main body part, for allowing compressed air supplied from outside to flow, an air supply hole, which is provided in the flow path part, for supplying compressed air to the guide face to form an air film between the bearing surface and the guide face, and a negative pressure generating part, which is provided in the second flow path part intersecting with the first flow path part, for generating a negative pressure for sucking air between the guide face and the main body part by increasing the flow velocity of the compressed air.

Abstract: This turbo chiller includes a shell-and-tube condenser; a header along a length direction of a shell is installed on a refrigerant inlet of the condenser, and openings are formed at least on both end portions of the header in the length direction, which allows high-temperature and high-pressure refrigerant gas from a compressor to be smoothly and evenly distributed to both length-direction end areas in the shell of the condenser through the header.

Abstract: An information processing system includes a storage unit that stores and associates a cause of a failure that has occurred in an electronic device, state information of the electronic device at the time the failure has occurred in the electronic device due to the cause of the failure, and a measure to be implemented in response to the cause of the failure. The information processing system further includes at least one processor that performs an acquisition process for acquiring the state information of the electronic device, and a failure diagnosis process for determining the cause of the failure that has occurred in the electronic device and the measure to be implemented in response to the cause of the failure based on the acquired state information of the electronic device.

Abstract: An image reading apparatus includes an image data obtaining unit, a foreign material position information obtaining unit, and a separation processor. The image data obtaining unit obtains image data read from a document passing over a read area. The foreign material position information obtaining unit obtains foreign material position information read from the read area in which the document is not present. The separation processor separates the image data into plural objects including a background object, detects, by using the foreign material position information, a streak image portion caused by foreign material in the read area and included in the image data, and assumes a pixel of the streak image portion to belong to the background object if the pixel is present in the background object and has a pixel value equal to or smaller than a threshold determined in accordance with a representative value of the background.

Abstract: Provided is an evaporator capable of, in a centrifugal chiller using a low pressure refrigerant used at a maximum pressure of less than 0.2 MPaG, preventing dry-out of a group of heat transfer pipes in an evaporator to increase heat transfer performance and to suppress reduced efficiency due to carryover of the low pressure refrigerant in a liquid phase to a turbo compressor side and a centrifugal chiller provided with same. An evaporator (7) comprises a pressure container (21) into which a refrigerant is compressed and introduced, a refrigerant inlet (22) provided on a lower portion of the pressure container, a refrigerant outlet (23) provided on an upper portion of the pressure container, a group of heat transfer pipes (25) that exchange heat with the refrigerant through the interior of the pressure container and a tabular refrigerant distribution plate (26) installed between the refrigerant inlet and the group of heat transfer pipes and in which refrigerant flow holes (26a) are drilled.

Abstract: The purpose of the present invention is to install an economizer having a sufficient internal volume in a compact turbo refrigeration apparatus specifically using a low-pressure refrigerant, and reduce refrigerant pressure loss and enhance efficiency in the turbo refrigeration apparatus. The turbo refrigeration apparatus according to the present invention comprises: a turbo compressor which compresses a refrigerant; a condenser which condenses the compressed refrigerant; a control valve which causes the condensed refrigerant to expand; an evaporator which causes the expanded refrigerant to evaporate; and an economizer which is installed in such a manner as to be sandwiched between the condenser and the evaporator, and separates the refrigerant expanded by the control valve into gas and liquid. The economizer is installed adjacent to a curved wall, having a drum shell shape, of the condenser and/or the evaporator, the curved wall being shared with the structural wall of the economizer.

Abstract: A machine quantity controlling device which controls a quantity of a heat source device to operate in a heat source system including a first heat source device and a second heat source device, the first heat source device being a waste heat recovery type absorption chiller, the second heat source device other than a waste heat recovery type absorption chiller, the machine quantity controlling device including an acquisition unit that obtains a waste heat utilization maximum load which is a maximum load when the first heat source device receives only supply of the waste heat; a determination unit that determines a predetermined load range from the waste heat utilization maximum load to be a first optimal load range as an optimal load range of the first heat source device; and a machine quantity control unit that controls a quantity of the second heat source device to operate so that the sum of a total of minimum values of the optimal load range of the first heat source device to operate and a total of minimum

Abstract: An information processing system includes one or more information processing apparatuses for determining lifetimes of components, to be replaced by preventive maintenance, of respective electric devices. The information processing system includes a leading variable specifying unit configured to specify, based on variables that represent use states of the electric devices and failure data of the electric devices which have been obtained from the electric devices, a plurality of leading variables relevant to the lifetimes of the components; a lifetime matrix creating unit configured to classify a plurality of values of each of the leading variables into sections to create a lifetime matrix in which the lifetimes of the components are set with respect to combinations of the sections each of which relates to a different leading variable; and a lifetime outputting unit configured to determine the lifetimes of the components with respect to the respective electric devices.

Abstract: A pneumatic tire 1 is provided in a bead portion 4 with a bead core 5 formed of a bead wire 20. The bead core 5 has a wound single bead wire structure formed from turns of the single bead wire 20, and has at least three wire layers 10. Each side face of the bead core 5 has a shape such that it is possible to draw a common tangent 30 to at least two turns of the bead wire 20 appearing in the side face 51 which common tangent is substantially parallel with the tire radial direction. The turns of the bead wire 21 in the 1st wire layer 11 are alternated with the turns of the bead wire 22 in the 2nd wire layer 12 disposed on the outside of the 1st wire layer 11. The 1st wire layer 11 includes a turn 21 having the winding-start end 16 of the bead wire, which turn 21 is positioned between adjacent two turns 22 of the bead wire in the 2nd wire layer 12.

Abstract: This centrifugal compressor is provided with an impeller mounted on a main shaft rotating around an axis line, and a vane device for adjusting the flow rate of a fluid in an inflow flow path to the impeller. The vane device includes: a plurality of vane main bodies provided at intervals in a circumferential direction, wherein a mounting angle of the plurality of vane main bodies is changed by rotating the shaft portion; a plurality of link members which is rotated along with the shaft portion; a drive ring which is formed with an annular shape centered on the axis line and is moved in a moving direction along a rotation locus of the link member, and a drive mechanism which is connected to the drive ring and transmits a force in a tangential direction to the drive ring.

Abstract: A compressor driving motor includes: a rotor; a stator surrounding an outer peripheral part of the rotor; a case accommodating the rotor and the stator; a liquid introduction portion introducing a liquid refrigerant from a refrigerant circuit including the compressor into the case; a gas introduction portion introducing a gas refrigerant from the refrigerant circuit into the case; and an injector using, as driving fluid, the gas refrigerant introduced by the gas introduction portion, and using, as suction fluid, the liquid refrigerant introduced by the liquid introduction portion. Wet steam of a mixture of the liquid refrigerant and the gas refrigerant mixed by the injector is injected toward at least a gap between the outer peripheral part of the rotor and an inner peripheral part of the stator.

Abstract: A compressor driving motor includes: a rotor; a stator surrounding an outer peripheral part of the rotor; a case accommodating the rotor and the stator; a liquid introduction path introducing a liquid refrigerant from a refrigerant circuit including a compressor; and a gas introduction path introducing a gas refrigerant from the refrigerant circuit. The case includes a downstream chamber located on one end side of the rotor and the stator in an axial direction and provided with the compressor, and an upstream chamber located on the other end side in the axial direction and communicating with the downstream chamber through a gap between the outer peripheral part of the rotor and an inner peripheral part of the stator. The introduced liquid refrigerant and the introduced gas refrigerant are mixed in the upstream chamber, and wet steam of the mixed refrigerant is supplied to at least the gap.