Abstract: A centrifugal fan includes a fan configured to be driven to rotate, and a scroll casing housing the fan. The scroll casing includes a peripheral wall having a volute shape having an inner end of a spiral thereof at a boundary with a tongue portion of the scroll casing. When a portion at the peripheral wall at which a distance between the peripheral wall and a rotation shaft of the fan is minimum is defined as a closest portion, the peripheral wall includes a narrowed portion at which the distance between the peripheral wall and the rotation shaft is reduced from the inner end toward the closest portion in a rotation direction of the fan, and an expanded portion that is formed between the narrowed portion and the closest portion and at which the distance between the peripheral wall and the rotation shaft is increased.

Abstract: A management server performs processing including registering reservation information when it accepts the reservation information, when a period of use covers all time frames of a DR request, when an intention to participate in DR is indicated, and when a reservation can be made, canceling a tentative reservation when the reservation cannot be made but when a reservation can be made in a tentative reservation time slot, and registering tentative reservation information when the intention to participate in DR is not indicated and when a reservation can be made.

Abstract: A wire harness is arranged between a vehicle body and a sliding door in a vehicle, in which: a protector is mounted on a bent region of the wire harness having a shape in which a middle of the wire harness in a longitudinal direction is bent in a crank shape; the protector includes a groove having a shape corresponding to the bent shape of the wire harness and has a larger width than a radial size of the wire harness; a bottom surface of the groove has a hole into which a pin is detachably inserted, the pin constraining the wire harness in a state where the wire harness has looseness so as not to contact an inner angle portion at a bent site of the groove; and one side of the bent region of the wire harness is fixed to the protector using a fastening member.

Abstract: A method for controlling a mobile shop includes: determining a selling situation of a plurality of items using information about an inventory status of the plurality of items and information about a well-selling time of the plurality of items; setting a charging schedule for a battery (secondary battery) based on the selling situation; and causing the mobile shop to move to EVSE (charging facility) according to the charging schedule.

Abstract: A taxi vehicle management method includes: evaluating, based on DR contribution history information, a degree of contribution to demand response for energy management by a driver of a taxi vehicle, the DR contribution history information indicating a history of contribution to the DR by the driver using a power storage device of the taxi vehicle; and determining a calculation formula of a fare of the taxi vehicle driven by the driver, using a result of evaluation of the degree of contribution by the driver. The determining the calculation formula of the fare includes determining the calculation formula of the fare such that the fare becomes lower as the degree of contribution to the DR by the driver becomes higher.

Abstract: A water jet peening device includes a sealed vessel provided to cover a surface of a welded portion, and adapted to be in a sealed state where an internal pressure is higher than an outside, a jet nozzle adapted to jet high-pressure water to create a cavitation bubble toward the surface of the welded portion, inside the sealed vessel, and a pressure control hole adapted to be able to adjust the internal pressure of the sealed vessel. The water jet peening device can efficiently reform a tensile residual stress on the surface of the welded portion to a compressive residual stress.

Abstract: A water jet peening device includes a sealed vessel provided to cover a surface of a welded portion, and adapted to be in a sealed state where an internal pressure is higher than an outside, a jet nozzle adapted to jet high-pressure water to create a cavitation bubble toward the surface of the welded portion, inside the sealed vessel, and a pressure control hole adapted to be able to adjust the internal pressure of the sealed vessel. The water jet peening device can efficiently reform a tensile residual stress on the surface of the welded portion to a compressive residual stress.

Abstract: A pitch controller, uninterruptible power supply, and rotational speed detector are disposed in the rotor in a wind turbine. When a slip ring failure or wire breakage occurs, the pitch controller internally creates a pitch angle command so as to control the pitch angle.

Abstract: A pitch controller, uninterruptible power supply, and rotational speed detector are disposed in the rotor in a wind turbine. When a slip ring failure or wire breakage occurs, the pitch controller internally creates a pitch angle command so as to control the pitch angle.