Abstract: An object is to provide an optical device for which size reduction can be achieved, and for which an increase in manufacturing cost is suppressed. An optical device of the present invention is an optical device in which an optical component is accommodated inside a case, the optical device including an optical component fixing member OF on which the optical component is mounted, in which a side surface portion CS and a bottom surface portion CB of the case are joined, and the optical component fixing member OF abuts on the side surface portion CS and is joined to the bottom surface portion CB.

Abstract: Provided is a tank inspection method capable of efficiently draining water injected into a tank at the time of inspection. A tank inspection method TIM includes a supporting step, a water injection step, a pressure increasing step, and a draining step. The supporting step supports a tank with the central axis crossed with the horizontal plane such that openings provided at both ends in a direction along the central axis of the tank become upper and lower openings. The water injection step injects water into the tank from the lower opening and discharges air inside the tank from the upper opening. The pressure increasing step increases water pressure inside the tank to a predetermined pressure by pumping water to the lower opening, with an upper valve, which opens and closes an upper flow path, closed, and the draining step drains water from the lower opening of the tank.

Abstract: To provide a tank capable of reducing a fiber bundle amount while ensuring strength. A tank having a tank body portion capable of filling a gas therein, the tank body portion comprising: a liner having a hollow cylindrical shape; and a fiber bundle layer covering an outer surface of the liner, wherein the fiber bundle layer has an inner layer, an outer layer, and an intermediate layer disposed between the inner layer and the outer layer, the end portion of the intermediate layer being located axially inwardly than the end portion of the fiber bundle layer.

Abstract: A gas tank includes: a liner including a tubular body portion having a central axis and a dome portion being located at each of two ends of the body portion; and a reinforcing layer covering the outer periphery of the liner. The reinforcing layer includes at least one a first fiber layer. The first fiber layer includes, on an outer periphery of the body portion, a first reinforcing portion and a second reinforcing portion. The first reinforcing portion is a portion in which fibers are wound in a staggered weave pattern, and the second reinforcing portion is a portion in which the fibers are wound at a predetermined angle with respect to the central axis.

Abstract: An optical modulator that suppresses poor welding between a case main body and a lid portion is provided.

Abstract: An optical device includes a housing that accommodates at least an optical waveguide element, a main body portion 1 of the housing having an opening portion OP on one surface and a lead pin PN1 fixed to a side surface adjacent to the one surface, and including a metal member 2 disposed to surround the opening portion OP and a lid member 11 that closes the opening portion OP and is joined to the metal member 2, in which end portions of the metal member 2 and the lid member 11 along the side surface of the main body portion 1 at which the lead pin PN1 is disposed are located on an inner side of the main body portion 1 than the side surface of the main body portion 1.

Abstract: An optical waveguide device includes a substrate on which an optical waveguide is formed, and a reinforcing block disposed on the substrate, along an end surface of the substrate on which an input portion or an output portion of the optical waveguide is disposed, in which an optical component that is joined to both the end surface of the substrate and an end surface of the reinforcing block is provided, a material used for a joining surface of the optical component and a material used for the substrate or the reinforcing block have at least different linear expansion coefficients of a direction parallel to the joining surface, and an area of the joining surface is set to be smaller than a maximum value of a total of areas of cross sections of the substrate and the reinforcing block parallel to the joining surface.

Abstract: An optical waveguide device includes a substrate on which an optical waveguide is formed, and a reinforcing block disposed on the substrate, along an end surface of the substrate on which an input portion or an output portion of the optical waveguide is disposed, in which an optical component that is joined to both the end surface of the substrate and an end surface of the reinforcing block is provided, a material used for a joining surface of the optical component and a material used for the substrate or the reinforcing block have at least different linear expansion coefficients of a direction parallel to the joining surface, and an area of a joining portion of the optical component is set to be smaller than an area of the end surfaces including joining portions of the substrate and the reinforcing block.

Abstract: An optical waveguide device includes a substrate on which an optical waveguide is formed, and a reinforcing block disposed on the substrate, along an end surface of the substrate on which an input portion or an output portion of the optical waveguide is disposed, in which an optical component that is joined to both the end surface of the substrate and an end surface of the reinforcing block is provided, a material used for a joining surface of the optical component and a material used for the substrate or the reinforcing block have at least different linear expansion coefficients of a direction parallel to the joining surface, and an area of the joining surface is set to be smaller than a maximum value of a total of areas of cross sections of the substrate and the reinforcing block parallel to the joining surface.

Abstract: An optical waveguide device includes a substrate on which an optical waveguide is formed, and a reinforcing block disposed on the substrate, along an end surface of the substrate on which an input portion or an output portion of the optical waveguide is disposed, in which an optical component that is joined to both the end surface of the substrate and an end surface of the reinforcing block is provided, a material used for a joining surface of the optical component and a material used for the substrate or the reinforcing block have at least different linear expansion coefficients of a direction parallel to the joining surface, and an area of a joining portion of the optical component is set to be smaller than an area of the end surfaces including joining portions of the substrate and the reinforcing block.

Abstract: Damage to a driving device or a ring gear or both due to an excessive force at a meshing portion therebetween is effectively prevented. In the embodiment described above, a driving device includes a driving device body that is provided in one structure at a movable section of a wind turbine and has a drive gear meshing with a ring gear provided in the other structure at the movable section, and an abnormality detection unit that monitors a force generated between the ring gear and the drive gear or the state of the driving device body or monitors both of the face and the state. Output from the drive gear of the driving device body to the ring gear is stopped when the abnormality detection unit detected an abnormality.

Abstract: An information processing device includes a hardware processor that: acquires image data obtained by imaging the same place for a plurality of times; detects a person from the image data; and generates filter information indicating a movable region in which the person is able to move, based on coordinates indicating a predetermined position in a person region representing the person detected at each time.

Abstract: An optical modulator capable of curbing deterioration of transmission properties due to deformation of a housing is provided. Provided is an optical modulator including a substrate (10) on which an optical waveguide (20) is formed and a housing (30) that accommodates the substrate, in which the optical waveguide includes mode conversion branching portions (21, 22) which convert a mode of light waves propagating through the optical waveguide and branch the light waves, a mounting portion (32) protruding from a surface (31) inside the housing and holding the substrate is formed, and the substrate is fixed to the mounting portion in an arrangement in which a fixed end (33) between the substrate and the mounting portion is positioned outside a region including the mode conversion branching portions when the substrate is seen in a plan view.

Abstract: An information processing device is connected to a plurality of processors to which one or more of kinds of tasks are allocable. The tasks are for processing data output from a data generator. The information processing device includes a controller that allocates one or more of the tasks to each of the processors based on processability information and throughput information, the processability information representing processability of each of the processors, the throughput information representing throughput for each of the tasks to process the data in a predetermined unit.

Abstract: An information processing apparatus, system, and control method are provided. The information processing apparatus connected to a plurality of networks having different segments receives an execution request of an application installed in the information processing apparatus from a communication apparatus connected to a specific network among the plurality of networks, determines whether the application corresponding to the execution request received through the specific network satisfies a predetermined condition, and updates history information indicating an execution history of the application associated with the specific network when it is determined that the predetermined condition is satisfied.

Abstract: An information processing apparatus includes: a memory and a hardware processor coupled to the memory. The hardware processor: monitors progress condition of AI processing in an AI processing device performing the AI processing; outputs data generated by one or more data generating devices to the AI processing device when it is determined that the AI processing device is not congested; and skips output of the data to the AI processing device when it is determined that the AI processing device is congested.

Abstract: A determination device includes: an acquirer, a determiner, and an output. The acquirer acquires first data and second data from image data of a person. The first data represents a physical characteristic of the person and the second data represents an accessory of the person. The determiner derives first information from the first data and the second data, and determines the person based on the first information. The output outputs a result of the determined person.

Abstract: An information processing device includes a specification circuit and a count circuit. The specification circuit specifies, based on a similarity of speed depending on a change in positions of a plurality of movable objects in an image, two or more movable objects that correspond to a same real movable object in the movable objects. The count circuit counts the number of real movable objects that corresponds to the movable objects based on the specification result of the specification circuit.

Abstract: There is provided a manufacturing method of a tank. The manufacturing method comprises a cooling process of cooling down a resin-adhering fiber bundle that has a resin adhering to a fiber bundle; and a winding process of winding the resin-adhering fiber bundle that is cooled down by the cooling process, on a rotating liner. The cooling process cools down the resin-adhering fiber bundle to make a temperature of the resin-adhering fiber bundle that is being wound on the liner in the winding process, equal to or lower than a set temperature which is set in advance as a temperature to provide a viscosity of the resin that prevents the resin from being splashed from the resin-adhering fiber bundle by rotation of the liner in a course of winding the resin-adhering fiber bundle on the liner.

Abstract: The objective of the present invention is to provide an optical modulator adapted for use with various modulating units and various modulation regions, and with which variability in optical losses is limited as far as possible.