Abstract: A mobile robot includes at least two first reflection parts, each of the at least two first reflection parts having a first reflection surface on a side surface thereof, the first reflection surface being configured to reflect electromagnetic waves. For each of the at least two first reflection parts: a cross-sectional shape obtained by being cut in a first direction perpendicular to a reference axis is symmetrical and continuous with respect to points passing through the reference axis, the first direction being parallel to a top surface of the first reflection part or a bottom surface of the first reflection part; and a reflection surface angle defined by the points passing through the reference axis and both ends of the first reflection surface is 90 degrees or more to 360 degrees or less when the first reflection part is viewed along the reference axis.

Abstract: An electricity storage module includes: an electricity storage device; a case that houses the electricity storage device and includes a bottom surface part and the opening part located at a side opposite to the bottom surface part; a lid that covers an opening part; and a sealing member that seals between the case and the lid. The case has a first case surface that surrounds the opening part along an outer periphery of the opening part. The lid has a first lid surface facing the first case surface. The sealing member is disposed between the first case surface and the first lid surface.

Abstract: Provided are wireless communication devices and methods. A wireless communication device can comprise: circuitry operative to map at least a first type of reference signals (RSs) onto orthogonal frequency division multiplexing (OFDM) symbol(s) other than the OFDM symbols onto which shortened transmission time intervals (TTIs) are mapped in a subframe, each of the shortened TTIs comprising 1-7 OFDM symbols; and a transmitter operative to transmit a physical channel in one of the shortened TTIs and transmit at least the first type of RSs.

Abstract: A communication apparatus includes: an antenna including a base having a dome shape, a first antenna element disposed in a first region including a zenith of the base, and one or more second antenna elements disposed in a second region surrounding the first region; and beam forming circuitry that controls, based on position information of a target satellite to communicate with, a beam formation of the first antenna element and the one or more second antenna elements.

Abstract: An imaging device including pixels each including: a photoelectric converter including a first electrode, a second electrode, and a photoelectric conversion layer between the first electrode and the second electrode, the second electrode of each of the pixels being electrically connected to each other; and a transistor having a gate electrically connected to the first electrode. The imaging device further including voltage supply circuitry electrically connected to the second electrode, in which the voltage supply circuitry supplies a first voltage to the second electrode in an exposure period, the voltage supply circuitry supplies a second voltage to the second electrode in a non-exposure period, an a potential difference between the first electrode and the second electrode in the non-exposure period is less than a potential difference between the first electrode and the second electrode in the exposure period.

Abstract: The tool system includes a body, a driver, and a tool sensing unit. To the body, a tool is attachable. The driver is configured to drive the tool attached to the body. The tool sensing unit is configured to perform identification of a type of the tool attached to the body.

Abstract: In an authentication method, a first controller generates a first group key, executes first mutual authentication with devices within a group, and shares the first group key with devices that have succeeded in the first mutual authentication. When a second controller joins the group, the first controller decides which coordinator manages a group key used in common. The first controller executes second mutual authentication with the coordinator, and shares the first group key with the coordinator when the second mutual authentication is successful. The coordinator performs encrypted communication within the group using the first group key, generates a second group key when the first group key valid time runs out and before updating the first group key, executes third mutual authentication with the devices and a third controller, and updates the first group key of the devices and the third controller that have succeeded in the third authentication.

Abstract: A solid-state imaging device includes: a pixel unit that outputs a pixel signal corresponding to an amount of incident light; an A/D converter that performs A/D conversion on the pixel signal; and a D/A conversion circuit that generates a reference signal to be used by the A/D converter. The D/A conversion circuit includes a first buffer circuit that outputs a base voltage VTOP for generating the reference signal, and the first buffer circuit includes a differential pair circuit including a first transistor and a second transistor, and a suppression circuit that suppresses a variation in the base voltage by canceling out a characteristic difference between the first transistor and the second transistor.

Abstract: A diagnosis circuit makes a diagnosis of a first multiplexer. The first multiplexer receives input data elements, selects one of the input data elements, and outputs the selected one as a selected data element. The diagnosis circuit includes a comparator unit and a second multiplexer. The comparator unit compares each of the input data elements to be supplied to the first multiplexer with the selected data element provided by the first multiplexer. The second multiplexer receives comparative data elements corresponding one to one to results of comparison made by the comparator unit with respect to the input data elements and outputs, out of the comparative data elements, a comparative data element, including a result of comparison between the one input data element selected by the first multiplexer and the selected data element, as a result data element.

Abstract: A solar cell 100 includes a substrate 1, a first electrode 6, an electron transport layer 2, a first photoelectric conversion layer 3, and a coating layer 5. The first photoelectric conversion layer 3 is disposed between the first electrode 6 and the substrate 1. The substrate 1 has a first main surface and a second main surface, and the second main surface has an uneven structure. The electron transport layer 2 has a first main surface and a second main surface, and the first main surface and the second main surface each have an uneven structure. The first photoelectric conversion layer 3 has a first main surface and a second main surface. The second main surface of the substrate 1 faces the first main surface of the electron transport layer 2.

Abstract: A ScAlMgO4 monocrystalline substrate that is highly cleavable and that does not easily cause cracking in the GaN film id grown on the substrate and a method for manufacturing such a ScAlMgO4 monocrystalline substrate are provided. The ScAlMgO4 monocrystalline substrate has a crystal oxygen concentration of 57 atom % or less as measured by inductively coupled plasma atomic emission spectroscopy analysis.

Abstract: A secondary battery including a positive electrode, a negative electrode, and an electrolyte. The negative electrode includes a carbon material, a first silicon-containing material, and a second silicon-containing material. The first silicon-containing material includes a silicate phase, and first silicon phases dispersed in the silicate phase. The second silicon-containing material includes a carbon phase, and second silicon phases dispersed in the carbon phase.

Abstract: A positive electrode for a nonaqueous electrolyte secondary battery includes a composite oxide containing lithium and a transition metal, and an additive covering at least a portion of a surface of the composite oxide, wherein the additive includes a cyclic inorganic phosphoric acid compound.

Abstract: Provided is a learning device that acquires computational imaging information of a computational imaging camera that captures an image with blurring; acquires a normal image captured by a normal camera that captures an image without blurring or an image with blurring smaller than that of the computational imaging camera, and a correct answer label assigned to the normal image; generates an image with blurring based on the computational imaging information and the normal image; and performs machine learning using the image with blurring and the correct answer label to create an image identification model for identifying an image captured by the computational imaging camera.

Abstract: Provided is a server that executes: acquiring at least one deterioration characteristic calculation model of a storage battery based on a test; acquiring operation data on the storage battery after the test; acquiring a degree of deterioration of the storage battery in the operation data; inputting the operation data into the at least one deterioration characteristic calculation model to calculate at least one deterioration coefficient; inputting the operation data into a degree-of-deterioration calculation model for calculating a degree of deterioration of the storage battery to calculate a degree of deterioration using the at least one deterioration coefficient calculated; adjusting the at least one deterioration characteristic calculation model to calculate a degree of deterioration close to the degree of deterioration acquired; calculating at least one deterioration characteristic using the at least one deterioration characteristic calculation model adjusted; and outputting the at least one deterioration

Abstract: An information processing device includes: a state information acquisition unit that acquires state information representing a state of a battery mounted on an electric device driven by the battery; an association information acquisition unit that acquires association information representing an association between the state of the battery and a deterioration rate of the battery; a deterioration information deriving unit that derives deterioration information related to the deterioration rate of the battery, based on the state information and the association information; and an output unit that outputs the deterioration information.

Abstract: A method for recommending household goods and clothing information to a first user of household goods and clothing, and an apparatus thereof. The method includes: transmitting a request for recommended household goods and clothing for the first user, to be displayed on the first user's display; receiving the purchase history of one or more of household goods and clothing by a plurality of users of the one or more of the household goods and clothing; extracting a second user, from among the plurality of users, who has purchased a household good or clothing with a design or function similar to a household good or clothing purchased by the first user; transmitting a recommendation for the first user of a household good or clothing purchased by the second user; and displaying on the display of the first user, the recommended household good or clothing purchased by the second user.

Abstract: Provided is a system that enables inexpensive and accurate identification of the seating position of each user in a free address office without incurring additional equipment costs. The system identifies a user who has entered an office by performing a face verification operation which involves comparing a face image of an entering person who is entering the office acquired from an image captured by a first entrance camera, with the face image of each registered user for matching, and identifies the seating position of the user in the office by performing a person verification operation which involves comparing a first person image acquired from an image captured by a second entrance camera, with a second person image acquired from an image captured by an in-area camera to thereby associate a person who has entered the office with a corresponding person who is seated in the office.

Abstract: An interval between a pinhole and a pinhole is set to a first interval at which a degree of superimposition of subject images captured through the corresponding pinholes falls within a predetermined range when an image of a subject located at a distance less than a predetermined distance from the multi-pinhole camera is captured. An interval between the pinhole and a pinhole is set to a second interval narrower than the first interval at which a degree of superimposition of subject images captured through the corresponding pinholes falls within a predetermined range when an image of the subject located at a distance equal to or more than the predetermined distance from the multi-pinhole camera is captured.

Abstract: The server acquires first data concerning a load applied to a body of an electric mobile apparatus, acquires second data concerning the performance of a storage battery mounted on the mobile apparatus, calculates a remaining lifetime of the body on the basis of the first data, calculates a remaining lifetime of the battery on the basis of the second data, compares the remaining lifetime of the body with the remaining lifetime of the storage battery, and instructs at least one of an activation of an unused function and an enhancement of a used function among a plurality of functions consuming the electric power of the mobile apparatus when the remaining lifetime of the body is shorter than the remaining lifetime of the storage battery.