Abstract: A master communication apparatus comprises a master wired communicator, a master wireless communicator, and a master controller. The master wired communicator is configured to communicate with a slave wired communicator of a slave communication apparatus in the human-powered vehicle via a wired communication channel. The master wireless communicator is configured to communicate with a slave wireless communicator of the slave communication apparatus via a wireless communication channel. The master controller is configured to transmit, via one of the master wired communicator and the master wireless communicator, a control signal to control a component of the human-powered vehicle. The master controller is configured to control the master wired communicator and the master wireless communicator in accordance with a priority order. The master controller is configured to set the priority order in accordance with information relating to the master communication apparatus and the slave communication apparatus.

Abstract: Provided is artificial leather that combines good texture, high wear resistance, and a high-quality appearance without the addition of polyurethane resin. Artificial leather that includes at least a surface fiber layer constituting a first surface, the artificial leather being characterized by the following: the surface fiber layer includes main fibers and a thermoplastic resin; the main fibers have a fineness of 0.01 dtex to 0.

Abstract: A method of manufacturing a light source device includes: disposing bumps containing a first metal on a first substrate which is thermally conductive; disposing a bonding member on the bumps, the bonding member containing Au—Sn alloy; disposing a light emitting element on the bumps and the bonding member; and heating the first substrate equipped with the bumps, the bonding member, and the light emitting element.

Abstract: A negative electrode material for a lithium-ion secondary battery includes graphite particles satisfying the following Formula (1): [Springback rate×7.6]+[Compressive load (kN/cm2)]?4.2??(1).

Abstract: A lithium-ion secondary-battery negative electrode material, consisting of graphite particles satisfying the following (1) to (3): (1) having a specific surface area of 2.7 m2/g or less; (2) having a compression pressure of 2.8 kN/cm2 or more; and (3) having a value, representing elastic energy/plastic deformation energy, or 4 or more.

Abstract: A heat exchanger includes: refrigerant channels that extend in a first direction, are disposed along a second direction intersecting with the first direction, and are disposed along a third direction intersecting with the first direction and the second direction; and heat transfer tubes defining the refrigerant channels. One or both of a size of an outer edge and a size of an inner edge of the heat transfer tubes are different between a first position and a second position in the first direction. Outer surfaces of the heat transfer tubes each include a protrusion that protrudes in a direction intersecting with the first direction, and is in contact with an outer surface of one of the heat transfer tubes adjacent thereto in the second direction. The protrusion includes a concave portion extending along the third direction.

Abstract: A shutter unit includes a base plate having an opening, a first blade member movable between a closed state and a retracted state, a first driving member biased by a first biasing member, a second driving member biased by a second biasing member, a first charging member configured to cause the first driving member to move in the second direction against a biasing force, a second charging member configured to cause the second driving member to move in the first direction against a biasing force, and a motor configured to supply a driving force to the first and second charging members. In a case where the first charging member causes the first driving member to move, the motor rotates in a direction opposite to a rotation direction in a case where the second charging member causes the second driving member to move.

Abstract: A heat exchanger includes: a flat tube having a width greater than a thickness of the flat tube; and fins fixed to the flat tube and that each include a plate-shaped fin body. The plate-shaped fin body of each of the fins faces the plate-shaped fin body of an adjacent one of the fins. Each of the fins has a tube receiving opening into which the flat tube is inserted. An edge of the tube receiving opening includes a first longitudinal side edge portion extending in a width direction of the flat tube. The tube receiving opening is in a notch shape that has: an open end on a first side of the first longitudinal side edge portion; and a closed end on a second side of the first longitudinal side edge portion.

Abstract: A spindle unit includes a swing mechanism fixed to a fixed frame, a support member swingably supported by the swing mechanism, a spindle main body and an electromagnetic brake supported by the support member. The spindle main body rotates integrally with a bobbin around which a yarn is wound. The electromagnetic brake applies a resistance to the rotating spindle main body. The swing mechanism includes a fixed attachment member fixed to the fixed frame, a swing shaft supported by the fixed attachment member, a spring, and a sensor. The spring applies a spring force to the support member in a direction opposite to a direction in which the support member swings by the tension of the yarn. The sensor detects the tilt amount of the support member when the support member swings.

Abstract: A method of manufacturing an anode material for a lithium-ion secondary battery includes (a) a step of obtaining a mixture containing a graphitizable aggregate, a graphitizable binder, and an aromatic compound; (b) a step of obtaining a molded product with a density of 1.3 g/cm3 or less by molding the mixture; (c) a step of obtaining a graphitized product by graphitizing the molded product; and (d) a step of obtaining a ground product by grinding the graphitized product.

Abstract: A heat exchanger includes: refrigerant channels that extend in a first direction, are disposed along a second direction intersecting with the first direction, and are disposed along a third direction intersecting with the first direction and the second direction; and heat transfer tubes defining the refrigerant channels. One or both of a size of an outer edge and a size of an inner edge of the heat transfer tubes are different between a first position and a second position in the first direction. Outer surfaces of the heat transfer tubes each include a protrusion that protrudes in a direction intersecting with the first direction, and is in contact with an outer surface of one of the heat transfer tubes adjacent thereto in the second direction. The protrusion includes a concave portion extending along the third direction.

Abstract: A shutter unit includes a base plate having an opening, a first blade member movable between a closed state and a retracted state, a first driving member biased by a first biasing member, a second driving member biased by a second biasing member, a first charging member configured to cause the first driving member to move in the second direction against a biasing force, a second charging member configured to cause the second driving member to move in the first direction against a biasing force, and a motor configured to supply a driving force to the first and second charging members. In a case where the first charging member causes the first driving member to move, the motor rotates in a direction opposite to a rotation direction in a case where the second charging member causes the second driving member to move.

Abstract: A heat exchanger includes: a gas-refrigerant pipe; a header connected to the gas-refrigerant pipe; and heat transfer tubes connected to the header. The header includes: a first plate member; and a second plate member that is stacked on the first plate member in a plate-thickness direction. The first plate member includes a first opening that constitutes an internal space of the header. The second plate member includes a second opening that, together with the first opening, constitutes the internal space of the header. The internal space of the header communicates with the heat transfer tubes. A first direction is perpendicular to both the plate-thickness direction and a direction in which the heat transfer tubes are arranged. A width of a part of the first opening in the first direction is different from a width of the second opening in the first direction.

Abstract: A heat exchanger includes heat transfer tubes and a header that forms a refrigerant flow path. The header includes: a first member that includes a first plate-shaped portion; a second member that includes a second plate-shaped portion; a third member that includes a third plate-shaped portion positioned between the first plate-shaped portion and the second plate-shaped portion in a first direction that is a direction in which the first plate-shaped portion and the second plate-shaped portion are arranged; a fourth member that includes a fourth plate-shaped portion positioned between the first plate-shaped portion and the second plate-shaped portion in the first direction and a second opening that constitutes a part of the refrigerant flow path, where a second is along a longitudinal direction of the second opening; and a fifth member.

Abstract: A heat exchanger includes: a header that extends in a first direction; and a plurality of heat transfer tubes that extend in a second direction crossing the first direction, each of which has one end connected to the header, and that are arranged in the first direction at intervals. The header includes: a header body having a tubular shape, a first member through which the one end of each of the heat transfer tubes extends, and a second member positioned between the header body and the first member in the second direction. The second member includes: a base portion that extends in the first direction, and a plurality of protruding portions that extend from the base portion toward the first member in the second direction.

Abstract: A heat exchanger exchanges heat between refrigerant flowing inside and air flowing outside. The heat exchanger includes: an upstream-side flat tube; downstream-side flat tubes on a downstream side of the upstream-side flat tube in a direction of air flow; and a space formation member that defines a distribution space in which the refrigerant coming out of the upstream-side flat tube is distributed to the downstream-side flat tubes.

Abstract: A land-and-air vehicle configured to switch between a first form to be taken during ground traveling and a second form to be taken during flight includes a main body, a main wing unit, an operation unit, and a controller. The controller is configured to control, on the basis of an operation performed on the operation unit by an operator, a behavior of the land-and-air vehicle during the ground traveling and during the flight. The operation unit includes a handle and a step. The handle of the operation unit includes a throttle unit. The controller is configured to control, both during the ground traveling and during the flight, yawing of the land-and-air vehicle in response to an operation performed on the handle, and to control thrust for the land-and-air vehicle during the flight in response to an operation performed on the throttle unit.

Abstract: A negative electrode material for a lithium ion secondary battery, including composite particles, each of the composite particles including: a spherical graphite particle; and flat graphite particles that are gathered or bound together such that the flat graphite particles have non-parallel orientation planes, wherein the composite particles satisfy the following (1) and (2): (1) a pore volume in a range of a pore diameter of from 0.10 to 8.00 ?m obtained by the mercury intrusion method is from 0.20 to 1.00 mL/g; and (2) in a log differential pore volume distribution obtained by the mercury intrusion method, at least two peaks appear in a range of a pore diameter of from 0.10 to 8.00 the two peaks including a first peak P1 and a second peak P2 at a higher diameter than the first peak P1.

Abstract: A spindle unit includes a support shaft, an electromagnetic air-gap brake, a spindle member, and a coupler. The support shaft is attached to the stationary frame of a creel. The brake is connected to the front end of the support shaft. The spindle member is rotatably supported by the support shaft in a state in which the support shaft and the brake are inserted in the spindle member. The coupler couples the spindle member and the brake shaft.

Abstract: A heat exchanger unit includes: a first heat exchanger including a first header, a second header, and a first flat pipe group that includes first flat multi-hole pipes connected to each of the first header and the second header; and a second heat exchanger: disposed in parallel with the first heat exchanger on an air downstream side, from the first heat exchanger, of air flow generated by a fan; and including a third header, a fourth header, and a second flat pipe group that includes second flat multi-hole pipes connected to each of the third header and the fourth header. The fourth header causes a refrigerant that flows in from the third header to flow out to the first header.