Abstract: A method and system for easily predicting a remaining lifetime of a hose are provided. A hose remaining lifetime prediction method and a hose remaining lifetime prediction system, for predicting a remaining lifetime of a hose 1 in use, include obtaining in advance, for a hose of the same type, relationship between use time of an inner tubular rubber layer 11 at a reference temperature and a physical property value of rubber forming the inner tubular rubber layer 11, generating a thermal degradation model for the inner tubular rubber layer 11, calculating, for the hose 1 in use, reference temperature use time being use time of the inner tubular rubber layer 11 at the reference temperature until a time of the prediction, and predicting the remaining lifetime of the hose 1 in use, based on comparison between the reference temperature use time and the thermal degradation model.

Abstract: A method disclosed herewith is a method for producing a first seamless metal tube with a first wall thickness and a second seamless metal tube with a second wall thickness by using a three-roll-type inclined rolling mill, and the method includes a first inclination rolling step (#5), a setting changing step (#10), and a second inclination rolling step (#15). At the first inclination rolling step, a first workpiece is rolled by the inclined rolling mill. At the setting changing step, a setup condition of the inclined rolling mill is changed in a manner (a) or (b) as described below. At the second inclined rolling step, a second workpiece is rolled by the inclined rolling mill under the changed condition. (a) When the second wall thickness is smaller than the first wall thickness, the cross angle of each of the inclined rolls is made greater than the cross angle set for the first inclination rolling step.

Abstract: A hose remaining service life prediction method to predict a remaining service life of an in-service hose at least including an inner tube rubber layer configured containing rubber having an inside portion contacted by a fluid and having a physical property value that changes with time and including a reinforcement layer disposed further to an outside periphery than the inner tube rubber layer.

Abstract: The fastening device for the air cylinder includes a belt having a first end portion and a second end portion, a coupling ring attached to the first end portion of the belt, and a buckle to which the second end portion of the belt is attached. The buckle includes locking grooves in which locking portions of the coupling ring are releasably locked. The locking grooves include openings that gradually widen toward a rear face side. The front face of the buckle includes bent portions that are brought into contact with an outer circumferential face of the air cylinder when coupling between the belt and the coupling ring is released.

Abstract: Disclosed is one example of a sliding device allowing for reliable sliding of members that close an opening of a fixed rail. The sliding device includes: a fixed rail including an opening arranged in a longitudinal direction of the fixed rail; a movable rail slidable with respect to the fixed rail in a state where at least part of the movable rail is exposed through the opening; a first closure member slidable with respect to the fixed rail and capable of closing at least part of the opening, the first closure member receiving a force from the movable rail to thereby slide; a first engaging portion provided to the first closure member and disengageably engaging with a first engaged portion provided to the movable rail; and a second engaging portion provided to the first closure member and disengageably engaging with a second engaged portion provided to the fixed rail.

Abstract: Disclosed is one example of a sliding device allowing for reliable sliding of members that close an opening of a fixed rail. The sliding device includes: a fixed rail including an opening arranged in a longitudinal direction of the fixed rail; a movable rail slidable with respect to the fixed rail in a state where at least part of the movable rail is exposed through the opening; a first closure member slidable with respect to the fixed rail and capable of closing at least part of the opening, the first closure member receiving a force from the movable rail to thereby slide; a first engaging portion provided to the first closure member and disengageably engaging with a first engaged portion provided to the movable rail; and a second engaging portion provided to the first closure member and disengageably engaging with a second engaged portion provided to the fixed rail.

Abstract: Disclosed is one example of a sliding device in which occurrence of damage of a member closing an opening of a fixed rail can be inhibited. The sliding device includes: a fixed rail including an opening opened upward, the opening being arranged in a longitudinal direction of the fixed rail; a movable rail slidable relative to the fixed rail in a state where at least part of the movable rail is exposed through the opening; and a first closure member slidable relative to the fixed rail and capable of closing at least part of the opening, the first closure member receiving a force from the movable rail to thereby slide in a state where an opposed surface opposed to the movable rail is spaced apart from the movable rail via a clearance. The movable rail includes a support portion that supports the first closure member in a slidable manner.

Abstract: Disclosed is one example of a sliding device allowing for reliable sliding of two members closing an opening of a fixed rail. The sliding device includes: a fixed rail including an opening arranged in a longitudinal direction of the fixed rail; a movable rail slidable relative to the fixed rail in a state where at least part of the movable rail is exposed through the opening; a first closure member slidable relative to the fixed rail and capable of closing part of the opening, the first closure member receiving a pressing force from the movable rail to thereby slide; and a second closure member slidable relative to the fixed rail and capable of closing part of the opening in cooperation with the first closure member, the second closure member being in sliding contact with the first closure member and receiving a pressing force from the movable rail to thereby slide.

Abstract: A structure for seismic isolation 10 provided on a structure plane 17 including a pair of left and right columns 5, 5 spaced apart in a horizontal direction, and a pair of upper and lower beams 7A, 7B spaced apart in a vertical direction, wherein the structure for seismic isolation comprises: a seismic isolation device 11 provided in a middle of each of the column 5, 5 to be displaced toward the beam 7A; and a horizontal rigid bearing element that is provided between an area in which the seismic isolation device 11 is provided and the beam 7B and that includes a connection beam 13 connecting the pair of columns 5, 5 and vertical braces 15L, 15R.

Abstract: Disclosed is one example of a sliding device allowing for reliable sliding of two members closing an opening of a fixed rail. The sliding device includes: a fixed rail including an opening arranged in a longitudinal direction of the fixed rail; a movable rail slidable relative to the fixed rail in a state where at least part of the movable rail is exposed through the opening; a first closure member slidable relative to the fixed rail and capable of closing part of the opening, the first closure member receiving a pressing force from the movable rail to thereby slide; and a second closure member slidable relative to the fixed rail and capable of closing part of the opening in cooperation with the first closure member, the second closure member being in sliding contact with the first closure member and receiving a pressing force from the movable rail to thereby slide.

Abstract: Disclosed is one example of a sliding device allowing for reliable sliding of members that close an opening of a fixed rail. The sliding device includes: a fixed rail including an opening arranged in a longitudinal direction of the fixed rail; a movable rail slidable with respect to the fixed rail in a state where at least part of the movable rail is exposed through the opening; a first closure member slidable with respect to the fixed rail and capable of closing at least part of the opening, the first closure member receiving a force from the movable rail to thereby slide; a first engaging portion provided to the first closure member and disengageably engaging with a first engaged portion provided to the movable rail; and a second engaging portion provided to the first closure member and disengageably engaging with a second engaged portion provided to the fixed rail.

Abstract: Disclosed is one example of a sliding device in which occurrence of damage of a member closing an opening of a fixed rail can be inhibited. The sliding device includes: a fixed rail including an opening opened upward, the opening being arranged in a longitudinal direction of the fixed rail; a movable rail slidable relative to the fixed rail in a state where at least part of the movable rail is exposed through the opening; and a first closure member slidable relative to the fixed rail and capable of closing at least part of the opening, the first closure member receiving a force from the movable rail to thereby slide in a state where an opposed surface opposed to the movable rail is spaced apart from the movable rail via a clearance. The movable rail includes a support portion that supports the first closure member in a slidable manner.

Abstract: In a boiler support structure in which certain seismic isolators are provided with a pullout countermeasure, the seismic isolators to be provided with the pullout countermeasure are individually identified according to whether the seismic isolator satisfies Formula (1): NDn+NEQn>Ntn . . . Formula (1), where NDn (NDn<0) is a compressive load occurring on each of the seismic isolators and calculated on the basis of a permanent load imposed on the boiler support structure; NEQn (NEQn>0) is a pullout force occurring on each of the seismic isolators and calculated on the assumption that an earthquake has occurred; and Ntn (Ntn>0) is an allowable pullout force of each of the seismic isolators and calculated using an allowable pullout stress of each of the seismic isolators.

Abstract: A structure for seismic isolation 10 provided on a structure plane 17 including a pair of left and right columns 5, 5 spaced apart in a horizontal direction, and a pair of upper and lower beams 7A, 7B spaced apart in a vertical direction, wherein the structure for seismic isolation comprises: a seismic isolation device 11 provided in a middle of each of the column 5, 5 to be displaced toward the beam 7A; and a horizontal rigid bearing element that is provided between an area in which the seismic isolation device 11 is provided and the beam 7B and that includes a connection beam 13 connecting the pair of columns 5, 5 and vertical braces 15L, 15R.

Abstract: In a boiler support structure in which certain ones of seismic isolators are provided with a pullout countermeasure, the seismic isolators to be provided with the pullout countermeasure are individually identified according to whether the seismic isolator satisfies Formula (1) : NDn+NEQn>Ntn . . . Formula (1) , where NDn (ND<0) is a compressive load occurring on each of the seismic isolators and calculated on the basis of a permanent load imposed on the boiler support structure; NEQn (NEQn>0) is a pullout force occurring on each of the seismic isolators and calculated on the assumption that an earthquake has occurred; and Ntn (Ntn>0) is an allowable pullout force of each of the seismic isolators and calculated using an allowable pullout stress of each of the seismic isolators.

Abstract: A swimming mask including an elastic skirt of which a rear peripheral region is partially provided with regions having an elastic stretchability higher than that of the remaining regions to ensure the elastic skirt to be kept in close contact with the wearer's facial surface. A rear peripheral portion 19 of an elastic skirt 13 includes an upper covering region 25, a lower covering region 26 and lateral covering regions 27, 28 wherein at least one of the upper covering region 25 and the lateral covering regions 27, 28 is formed with a pair of high elastically stretchable regions 31, 32, 33, 34 adapted to be more easily elastically stretched and contracted in a circumferential direction than a remaining region in the rear peripheral portion 19.

Abstract: A boiler support structure is provided that is capable of significantly reducing an effect of a seismic force and also capable of vibrating integrally during an earthquake. The boiler support structure is provided with a main boiler body (3), a support steel frame (11) that supports the main boiler body (3) in a suspended state and that includes a plurality of pillars (11a) that each stand on a foundation (1) with a pillar legs (11b) placed therebetween and a plurality of beams (11c) that connect the adjacent pillars (11a), and seismic isolation devices (5) that support the plurality of respective pillars (11a). In the boiler support structure (10), seismic isolation characteristics of each of the seismic isolation devices (5) are set in accordance with horizontal reaction forces occurring in the plurality of pillar legs (11b).

Abstract: An image forming apparatus for performing job processing includes a power supplying unit configured to supply power to a heating unit, a cooling unit configured to cool an inside of an enclosure of the image forming apparatus, a power generating unit configured to generate power by heat dissipated from the heating unit, a power storage unit configured to store the power generated by the power generating unit, and a power supply control unit configured to, after driving the cooling unit by the power from one of the power supplying unit and the power generating unit, switch a power source of the cooling unit from one of the power supplying unit and the power storage unit to the power generating unit.

Abstract: An optical information recording medium 1 is constructed by sequentially layering a reflective layer 11, a protective layer 12, a recording layer 13, a protective layer 14, and a light transmissive protective layer 15 on a substrate 10. As the recording layer 13, a recording layer containing ZnS, SiO2, and Sb as principal components, or preferably, a recording layer expressed by a compositional formula [(ZnS)x(SiO2)1-x]y(SbzX1-z)1-y (where 0<x?1.0, 0.3?y?0.7, and 0.8<z?1.0 are met and X denotes at least one element selected from a group of Ga, Te, V, Si, Zn, Ta, and Tb) is adopted.

Abstract: An image forming apparatus for performing job processing includes a power supplying unit configured to supply power to a heating unit, a cooling unit configured to cool an inside of an enclosure of the image forming apparatus, a power generating unit configured to generate power by heat dissipated from the heating unit, a power storage unit configured to store the power generated by the power generating unit, and a power supply control unit configured to, after driving the cooling unit by the power from one of the power supplying unit and the power generating unit, switch a power source of the cooling unit from one of the power supplying unit and the power storage unit to the power generating unit.