Abstract: An information processing system includes: an acquisition unit configured to divide a target area into a plurality of meshes of a predetermined size, and acquire mesh data indicating the environment of the target area with height information about the plurality of meshes on a per-mesh basis; a first ray tracing unit configured to determine a two-dimensional ray trace from a transmission point to a reception point on the basis of the mesh data, a radio wave being transmitted at the transmission point, the radio wave being received at the reception point; a second ray tracing unit configured to determine a three-dimensional ray trace corresponding to the two-dimensional ray trace, on the basis of the mesh data, and height information about the transmission point and the reception point; and a radio field intensity calculation unit configured to calculate an intensity of the radio wave at the reception point, using one or more three-dimensional ray traces determined by the second ray tracing unit.

Abstract: A communication design support apparatus includes: a propagation model storage unit that stores a propagation model; an acquisition unit that acquires point cloud data of a structure and measurement data of radio wave intensities in a plurality of frequency bands; a parameter update unit that updates a parameter of the propagation model based on the acquired data; and an estimation unit that estimates propagation loss based on the propagation model.

Abstract: A tubular fuser device rotates and is in contact with a sheet on which a positively charged toner image is formed to fix the toner image to the sheet. The fuser device includes a tubular substrate made of a metal, a rubber layer covering the outer periphery of the substrate, an adhesion layer covering the outer periphery of the rubber layer, and a surface layer made of a resin covering the outer periphery of the adhesion layer. The adhesion layer has a first adhesion layer that is in contact with the rubber layer and a second adhesion layer interposed between the first adhesion layer and the surface layer. The first adhesion layer is made of a fluororesin-based adhesive, and the second adhesion layer is made of a silicone rubber-based adhesive containing an ionic conductor.

Abstract: An information processing device includes processing circuitry to manage a rule regarding cooperation of a plurality of devices, to acquire device operation information indicating a user operation on a first device and to infer the rule including a trigger condition as a condition for starting a cooperation device operation on a second device; to notify the terminal of an inquiry including the inferred rule via the communication unit and to acquire response information regarding whether to register the rule or not from the terminal; and to perform the cooperation device operation based on the rule when the device operation information satisfying the trigger condition included in the registered rule is inputted to the first device, wherein the processing circuitry registers the rule when the response information indicates approval for the registration of the rule, and performs the cooperation device operation based on the registered rule.

Abstract: A connection destination switching control method executed by a communication apparatus, the connection destination switching control method comprising: a data acquisition step of acquiring observed values of received power of signals transmitted from a base station; a prediction processing step of predicting future received power by using the observed values acquired in the data acquisition step as input data into a prediction model; and a connection destination switching processing step of executing control for handover based on the future received power predicted in the prediction processing step.

Abstract: An operation lever for a working vehicle, the operation lever being arranged to one side of an operator seat of the working vehicle, includes: a swing body configured to be swingable; and a grip arranged on an upper portion of the swing body. The grip includes: a gripping arranged to the one side; an operating portion arranged to another side opposed to the one side and provided with an operation switch; an extending portion extending backward from a lower portion of the gripping portion; and an anti-slip portion arranged between a surface of the gripping portion and a surface of the extending portion.

Abstract: Provided is a model parameter learning device and the like capable of learning model parameters such that the influence of a noise in input data can be suppressed. A model parameter learning device (1) alternately carries out first learning processing for learning model parameters W1, b1, W2 and b2 such that an error between data Xout and data Xorg is minimized, and second learning processing for learning model parameters W1, b1, Wm, bm, Wq and bq such that a loss function LAE is minimized.

Abstract: Control facilities and incidental facilities in fields are flexibly managed. Since identification information enabling to identify uniquely information regarding control facilities of which design timing and architectures are mutually different or facilities incidental to the control facilities is encoded, pieces of identification information are coupled and uniqueness is guaranteed. Further, a parent-child relation between identifiers is constructed and the identifiers are structured as a tree structure based on the structure of the control facilities. A control facility operation management device manages combination of the structured identifiers and information of management target or combination of the structured identification information and identification information of a database.

Abstract: A cement composition is disclosed containing: cement; cellulose nanofibers; and water, wherein a mass ratio of the water to cement is 0.4 or less. The cement is preferably Portland cement. It is preferred that the Portland cement is high-early-strength Portland cement, and that a mass ratio of fine aggregate to the high-early-strength Portland cement is 2.0 or less. A unit amount of cellulose nanofibers in the cement composition can be 0.1 kg/m3 to 15 kg/m3 Furthermore, a hardened body of the cement composition is disclosed, wherein a ratio of a splitting tensile strength of the hardened body at a material age of 91 days obtained by curing in air, to the splitting tensile strength of the hardened body at the material age if 91 days obtained by curing in water is 0.90 or more and 1.10 or less, the splitting tensile strength being measured in accordance with JIS-A-1113 (2006).