Abstract: An in-vehicle communication system includes communication transmission paths, a first electronic device and second electronic devices each of which is connected directly/indirectly with the first electronic device through the communication transmission path(s), the first electronic device includes an evaluation unit sending a predetermined evaluation signal to the second electronic device(s) as target device(s), receiving a reply signal sent back by the target device in response to the evaluation signal, and evaluating a transmission quality of the communication transmission path(s), each of the second electronic devices includes a first communicator folding back a propagation direction of the evaluated signal received as the target device and sending the evaluated signal as the reply signal to the first electronic device, and the evaluation unit stores an evaluation result about the transmission quality, in association with the second electronic device that is the target device.

Abstract: In an aerodynamic bearing, an outer peripheral surface of a shaft and an inner peripheral surface of a sleeve face each other in a radial direction. The sleeve includes a through hole penetrating the sleeve in the radial direction. A space on a radially inner side of the sleeve communicates with an external space of a motor through the through hole. A stationary portion includes a wall portion radially overlapping the through hole with a gap interposed therebetween on a radially outer side of the through hole.

Abstract: A blower includes an impeller that is rotatable about a central axis extending in a vertical direction, a motor that rotates the impeller, and a base portion on which the motor is mounted. The impeller includes a cup portion that covers the motor, and blades extending radially outward from the cup portion and arranged in a circumferential direction. A gap is provided between the cup portion and the base portion such that the gap becomes narrower in an outward direction with increasing distance from an interior of the cup portion.

Abstract: The developing member includes a substrate, and an electroconductive layer on the substrate, wherein the electroconductive layer has electrically insulating domains on an outer surface thereof, the domains being independent from each other, the developing member has an outer surface including a surface of the electroconductive layer and surfaces of the domains, and wherein, when each of the domains is orthographically projected onto the surface of the electroconductive layer, defining respective areas of projected images of the domains as S, and defining respective areas of convex envelopes of the projected images as H, at least one domain satisfies the relation represented by 0.05?S/H?0.80.

Abstract: In an aerodynamic bearing, an outer peripheral surface of a shaft and an inner peripheral surface of a sleeve face each other in a radial direction. The sleeve includes a through hole penetrating the sleeve in the radial direction. A space on a radially inner side of the sleeve communicates with an external space of a motor through the through hole. A stationary portion includes a wall portion radially overlapping the through hole with a gap interposed therebetween on a radially outer side of the through hole.

Abstract: The developing member includes a substrate, and an electroconductive layer on the substrate, wherein the electroconductive layer has electrically insulating domains on an outer surface thereof, the domains being independent from each other, the developing member has an outer surface including a surface of the electroconductive layer and surfaces of the domains, and wherein, when each of the domains is orthographically projected onto the surface of the electroconductive layer, defining respective areas of projected images of the domains as S, and defining respective areas of convex envelopes of the projected images as H, at least one domain satisfies the relation represented by 0.05?S/H?0.80.

Abstract: A blower includes an impeller that is rotatable about a central axis extending in a vertical direction, a motor that rotates the impeller, and a base portion on which the motor is mounted. The impeller includes a cup portion that covers the motor, and blades extending radially outward from the cup portion and arranged in a circumferential direction. A gap is provided between the cup portion and the base portion such that the gap becomes narrower in an outward direction with increasing distance from an interior of the cup portion.

Abstract: Provided is an electrophotographic member which can suppress adhesion of the toner component and fogging even in the case of printing a large number of sheets. The electrophotographic member includes an electroconductive support and an elastic layer and has convex portions composed of the elastic layer on a surface of the electrophotographic member and a filled portion containing a resin at a valley portion between the convex portions, the filled portion has a height lower than heights of the convex portions, and the surface of the electrophotographic member has a specific Martens hardness.

Abstract: Provided is an electrophotographic member which can suppress adhesion of the toner component and fogging even in the case of printing a large number of sheets. The electrophotographic member includes an electroconductive support and an elastic layer and has convex portions composed of the elastic layer on a surface of the electrophotographic member and a filled portion containing a resin at a valley portion between the convex portions, the filled portion has a height lower than heights of the convex portions, and the surface of the electrophotographic member has a specific Martens hardness.

Abstract: The present disclosure provides developing member superior in triboelectric charge imparting ability to a toner. The developing member includes a substrate and a surface layer, the surface layer containing alumina particles and a resin, the surface layer having protrusions on the surface thereof. Each of the protrusions containing the alumina particles, part or all of the alumina particles being exposed at the surfaces of the protrusions, and the resin being interposed among the alumina particles.

Abstract: The present disclosure provides developing member superior in triboelectric charge imparting ability to a toner. The developing member includes a substrate and a surface layer, the surface layer containing alumina particles and a resin, the surface layer having protrusions on the surface thereof. Each of the protrusions containing the alumina particles, part or all of the alumina particles being exposed at the surfaces of the protrusions, and the resin being interposed among the alumina particles.

Abstract: A combined-type gas turbine engine system is provided which achieves high efficiency by very effectively using exhaust heat from a gas turbine engine. In a gas turbine engine system including: a compressor for compressing a first working medium; a heater for heating the compressed first working medium by an external heat source; a turbine for outputting power from the first working medium; an intermediate cooler provided at the compressor for cooling the first working medium compressed by a low-pressure compression part of the compressor and supplying the first working medium to a high-pressure compression part of the compressor; and an exhaust heat boiler using as a heating medium an exhaust gas from the turbine, a Rankine cycle engine using the intermediate cooler and the exhaust heat boiler as heat sources and a cooling medium of the intermediate cooler as a second working medium.

Abstract: A developer quantity control blade is provided which can sufficiently impart charge to toner and which allows bleeding of a material from a blade member to be suppressed even in application of a voltage. The developer quantity control blade includes a supporting member and a blade member, wherein the blade member is composed of a thermoplastic elastomer composition including a block copolymer having a polyamide structure and a polyether structure, and an ion conductive agent; in the blade member, a quantity of an extraction component to be extracted with methyl isobutyl ketone as a solvent is 0.5% by mass or more and 2.4% by mass or less; and a quantity of a molecule having a molecular weight of 5000 or less in the extraction component is 70% by mass or more.

Abstract: A developer quantity control blade is provided which can sufficiently impart charge to toner and which allows bleeding of a material from a blade member to be suppressed even in application of a voltage. The developer quantity control blade includes a supporting member and a blade member, wherein the blade member is composed of a thermoplastic elastomer composition including a block copolymer having a polyamide structure and a polyether structure, and an ion conductive agent; in the blade member, a quantity of an extraction component to be extracted with methyl isobutyl ketone as a solvent is 0.5% by mass or more and 2.4% by mass or less; and a quantity of a molecule having a molecular weight of 5000 or less in the extraction component is 70% by mass or more.

Abstract: A mirror surface angle adjusting device includes: a pivot plate (10) which supports a mirror (6) and is attached to a holder (9) pivotably three-dimensionally on a pivot shaft (76); a bracket (8) disposed on a vehicle body; a mirror tilting drive section (11) contained between the bracket (8) and the holder (9) attached to the bracket (8); an operation shaft (44A, 44B) of the mirror tilting drive section (11), the operation shaft penetrating through the holder (9) and being connected to the pivot plate (10); a detection rod (101A, 101B) which moves following the pivot plate (10); an angle detection section (100) which detects a tilt angle of the pivot plate (10); a pivot depressed portion (80) into which the pivot shaft can be press-fitted; and a gear positioning rib (69) provided on an inner wall of the holder (9) to position the mirror tilting drive section (42).

Abstract: A gas turbine engine system is provided which achieves high efficiency while using sunlight as a heat source. In a gas turbine engine system including: a compressor configured to compress a first working medium; a heater configured to heat the compressed first working medium by an external heat source; a turbine configured to output power from the first working medium; and an intermediate cooler provided at the compressor and configured to cool the first working medium compressed by a low-pressure compression part of the compressor and supply the first working medium to a high-pressure compression part of the compressor, an organic Rankine cycle engine using, as a second working medium, an organic substance which is a cooling medium of the intermediate cooler is provided.

Abstract: A combined-type gas turbine engine system is provided which achieves high efficiency by very effectively using exhaust heat from a gas turbine engine. In a gas turbine engine system including: a compressor for compressing a first working medium; a heater for heating the compressed first working medium by an external heat source; a turbine for outputting power from the first working medium; an intermediate cooler provided at the compressor for cooling the first working medium compressed by a low-pressure compression part of the compressor and supplying the first working medium to a high-pressure compression part of the compressor; and an exhaust heat boiler using as a heating medium an exhaust gas from the turbine, a Rankine cycle engine using the intermediate cooler and the exhaust heat boiler as heat sources and a cooling medium of the intermediate cooler as a second working medium.

Abstract: A support shaft connects between a flange and a pump unit. An intermediate member, which connects between the support shaft and pump unit, enables a relative positional change between the support shaft and the pump unit in an axial direction of the support shaft. The intermediate member limits a relative positional change between the support shaft and the pump unit in a circumferential direction of the support shaft. A resilient member is received in the support shaft and exerts a restoring force in an axial direction of the support shaft to urge the pump unit, which is movable relative to the support shaft in the axial direction, toward a bottom portion of the fuel tank.

Abstract: An outer ring and an inner ring of a rolling bearing are constituted of steel containing 0.77 to 0.85% of carbon, 0.01 to 0.25% of silicon, 0.01 to 0.35% of manganese, 0.01 to 0.15% of nickel, 3.75 to 4.25% of chromium, 4 to 4.5% of molybdenum and 0.9 to 1.1% of vanadium with the rest consisting of iron and impurities, a nitrogen-enriched layer having a nitrogen concentration of at least 0.05 mass % is formed on a region including a rolling surface, and the total of a carbon concentration and the nitrogen concentration in the nitrogen-enriched layer is at least 0.82 mass % and not more than 1.9 mass %. A DLC coating layer is arranged on a region including an outer ring contact surface.

Abstract: An outer ring, an inner ring and a ball serving as mechanical components configuring a deep groove ball bearing are formed of steel containing at least 0.11 mass % and not more than 0.15 mass % of carbon, at least 0.1 mass % and not more than 0.25 mass % of silicon, at least 0.15 mass % and not more than 0.35 mass % of manganese, at least 3.2 mass % and not more than 3.6 mass % of nickel, at least 4 mass % and not more than 4.25 mass % of chromium, at least 4 mass % and not more than 4.5 mass % of molybdenum and at least 1.13 mass % and not more than 1.33 mass % of vanadium with a remainder consisting of iron and impurity, and have raceway/rolling contact surfaces, the surface being included in a region having a nitrogen enriched layer having a nitrogen concentration of at least 0.05 mass %, the nitrogen enriched layer having a carbon concentration and the nitrogen concentration, in total, of at least 0.55 mass % and not more than 1.9 mass % at a depth of 0.1 mm from the surface.