Abstract: According to an embodiment, a communication device includes one or more processors. The processors share encryption keys with a plurality of external communication devices. The processors, based on residual quantities of the encryption keys, decide on a route for sending transmission data. The processors encrypt, for each external communication device of one or more external communication devices included in the route, a header in which the external communication device is set as a destination, using an encryption key shared with the external communication device. The processors generate a packet that includes the transmission data and encrypted headers for the one or more external communication devices. The processors send the generated packet along the route.

Abstract: According to an embodiment, a communication system includes a plurality of nodes that forms a wireless multi-hop network. Transmission timings of network advertising packets transmitted from the plurality of nodes are controlled based on a transmission schedule in which each of the plurality of nodes has one transmission cell at a location different from other nodes. One of the nodes includes a processor and a wireless communication controller. The processor determines a transmission timing of the corresponding network advertising packet based on the transmission schedule. The wireless communication controller transmits the network advertising packet at the transmission timing.

Abstract: An information processing apparatus includes: a housing; a substrate fixed in the housing; a touch panel installed in the housing and disposed to be inclined in a direction approaching the substrate toward a front of the information processing apparatus; and an opening detection switch provided between an edge of the touch panel on a front side and the substrate. The opening detection switch includes: a contact opening and closing portion fixed to the substrate; a key top having a hemispherical surface in contact with the edge; and an elastic member elastically deformable by a pressing force from the key top pressed by the edge to press down the contact opening and closing portion.

Abstract: A plasticizing device that plasticizes at least a part of a material to generate a plasticized material, the plasticizing device includes: a drive motor; a screw configured to rotate around a rotation axis by a drive force of the drive motor and having a groove forming surface in which a groove is formed; a speed reducer disposed between the drive motor and the screw and configured to transmit the drive force of the drive motor to the screw; a barrel having a facing surface facing the groove forming surface and having a through hole into which the plasticized material flows; a first heater configured to heat the material supplied between the screw and the barrel; a first cooling unit configured to cool the drive motor; and a heat insulating unit disposed between the first cooling unit and the speed reducer. At least a part of the heat insulating unit overlaps the first cooling unit when viewed along the rotation axis of the screw.

Abstract: An information processing apparatus includes: a body having a top configured to allow a touch panel to be disposed thereon; and an input auxiliary device. The input auxiliary device includes: a frame including a first holding piece and a second holding piece configured to hold one side and another side of the body, respectively, to mount the frame on the top; and a key unit attachable to a backside of the frame. The one side includes: a card slot; and a second underside extending along the top toward the another side between the top and the card slot. The first holding piece is configured to be locked to the second underside.

Abstract: An electrolysis element for alkaline water electrolysis includes: an electroconductive separating wall including a first face and a second face; an anode for generating oxygen; a cathode for generating hydrogen; a first connecting means fixing the anode to the separating wall such that the anode faces the first face of the separating wall at a first distance, and electrically connecting the anode to the separating wall; an electroconductive elastic body supporting the cathode; and a cathode current collector supporting the elastic body, the cathode current collector being fixed to the separating wall, to face the second face of the separating wall at a second distance, and being electrically connected to the separating wall, the first connecting means including: an electroconductive bolt including at least a shaft, wherein the anode is removably fixed to the separating wall by means of the electroconductive bolt.

Abstract: An information processing apparatus includes: a housing; a substrate fixed in the housing; a touch panel installed in the housing and disposed to be inclined in a direction approaching the substrate toward a front of the information processing apparatus; and an opening detection switch provided between an edge of the touch panel on a front side and the substrate. The opening detection switch includes: a contact opening and closing portion fixed to the substrate; a key top having a hemispherical surface in contact with the edge; and an elastic member elastically deformable by a pressing force from the key top pressed by the edge to press down the contact opening and closing portion.

Abstract: According to an embodiment, a device sends, to an access point device, a network access authentication request issued with respect to a first network. An authentication server device includes a first device-authentication processing unit that, in response to the network access authentication request, performs an authentication operation based on first-type authentication information. The access point device includes a transfer processing unit and a second device-authentication processing unit. When second-type authentication information is not included in the network access authentication request, the transfer processing unit transfers the network access authentication request to the authentication server device.

Abstract: According to an embodiment, a communication system includes a device, a server apparatus, and a user terminal. A setting processing unit of the device executes operation setting processing of setting operation setting of the device when receiving authorization information generated by the server apparatus, from the user terminal. A communication unit of the device encrypts operation setting data transmitted from the device and transmits it to the user terminal. A communication unit of the server apparatus encrypts operation setting data transmitted from the server apparatus and transmits it to the user terminal. An acquisition unit of the user terminal performs authentication with the server apparatus, and acquires the authorization information from the server apparatus when the authentication succeeds. A transfer unit of the user terminal transfers the authorization information to the device and then transfers the operation setting data between the device and the server apparatus.

Abstract: A communication system according to an embodiment includes a server system and one or more communication apparatuses. The server system includes a first hardware processor. The first hardware processor determines frequency information indicating processing frequency of predetermined processing executed by the communication apparatuses. The frequency information is determined on the basis of determination information affecting the predetermined processing. The first hardware processor transmits processing frequency of the predetermined processing to the communication apparatuses. The processing frequency is determined on the basis of the frequency information. The communication apparatuses each include a second hardware processor. The second hardware processor receives the processing frequency of the processing from the server system. The second hardware processor executes the predetermined processing on the basis of the received processing frequency.

Abstract: An elastic mat for an alkaline water electrolysis vessel includes: at least one wire net being woven or knitted with a metal wire and having spring elasticity in a thickness direction thereof, wherein the metal wire is a solid wire having a diameter of 0.16 to 0.29 mm, or a stranded wire including a plurality of solid wires each having a diameter of 0.08 to 0.15 mm, or any combination thereof.

Abstract: A gas production apparatus including: an electrolysis vessel; first and second electrolyte circulation systems; and an electrolyte exchanger, the first/second electrolyte circulation system including: a first/second circulation tank receiving and storing a first/second electrolyte flowing out from an anode chamber/a cathode chamber; and a first/second circulation pump supplying the first/second electrolyte to the anode chamber/the cathode chamber, the electrolyte exchanger transferring part of the first electrolyte existing in the first electrolyte circulation system into the second electrolyte circulation system on one hand, and transferring part of the second electrolyte existing in the second electrolyte circulation system into the first electrolyte circulation system on the other hand.

Abstract: A communication device according to an embodiment includes one or more hardware processors. The one or more hardware processors: receives, from a server device performing communication by a communication method of synchronizing a number indicating a communication timing, a reference number indicating the number serving as a reference; and determines a processing timing of predetermined processing, based on the reference number.

Abstract: An information processing apparatus includes: a housing; a touch panel installed in the housing; an opening detection switch configured to detect opening of the touch panel from the housing; a first flexible substrate connected to the touch panel, bent at a bent portion, provided with an electronic component mounted thereon in the housing, and disposed along the touch panel; and a holder member installed in the housing between the touch panel and the first flexible substrate. The holder member includes a rib protruding toward the first flexible substrate. The first flexible substrate has an engagement hole through which the rib penetrates.

Abstract: An information processing apparatus includes a processor configured to display a relationship object indicating a positional relationship of at least two or more measurement spots in a molded product at a position corresponding to the relationship on a three-dimensional model of the molded product.

Abstract: A three-dimensional shape data processing apparatus includes a processor. The processor receives three-dimensional shape data represented by dividing a space including an object into plural three-dimensional regions, at least one of the plural three-dimensional regions having a size different from another three-dimensional region, extracts from the space a unit shape formed in which a predetermined position in each of the three-dimensional regions included in a three-dimensional region group formed of three-dimensional regions adjacent to each other is defined as a vertex, without missing or repeating any unit shape, and configures a surface of the object as a formation face represented by a flat face, based on each of the extracted unit shapes.

Abstract: An information processing apparatus includes a processor configured to acquire voxel data and polygon mesh data, the voxel data representing a three-dimensional body by using multiple voxels, each of the multiple voxels retaining an attribute, the polygon mesh data representing the three-dimensional body by using multiple polygons, and output the polygon mesh data after assigning attributes retained by the multiple voxels to the multiple polygons.

Abstract: A wireless communication device according to an embodiment is a wireless communication device included in a multi-hop network in which data is relayed in multiple stages in time division communication. A decision unit decides an additional slot, based on identification information received from a child node that transmits data to the wireless communication device. A communication processing unit transmits and receives data using the additional slot and a basic slot assigned based on frame information in the time division communication.

Abstract: A plasticizing device that plasticizes at least a part of a material to generate a plasticized material, the plasticizing device includes: a drive motor; a screw configured to rotate around a rotation axis by a drive force of the drive motor and having a groove forming surface in which a groove is formed; a speed reducer disposed between the drive motor and the screw and configured to transmit the drive force of the drive motor to the screw; a barrel having a facing surface facing the groove forming surface and having a through hole into which the plasticized material flows; a first heater configured to heat the material supplied between the screw and the barrel; a first cooling unit configured to cool the drive motor; and a heat insulating unit disposed between the first cooling unit and the speed reducer. At least a part of the heat insulating unit overlaps the first cooling unit when viewed along the rotation axis of the screw.

Abstract: In electric resistance welding for energizing a workpiece formed by superimposing plural metal plates, an energization resistance reduction amount between a pair of electrodes pressurizing the workpiece is detected at a specified time interval during each welding process under a specified welding condition, frequency distribution of the energization resistance reduction amount under the welding condition is calculated on the basis of data relating to the energization resistance reduction amount, the frequency distribution is fitted with a Gaussian function, and occurrence of an expulsion under the welding condition is determined on the basis of whether the fitting is statistically significant.