Abstract: A particle group characteristic measurement device includes an image acquisition portion that acquires images of a particle group, a particle information extraction portion that processes acquisition images acquired by the image acquisition portion, and then extracts particle information which is information about particles appearing in the acquisition images, and a particle group characteristic calculation portion that calculates a particle group characteristic at a plurality of time points in a time series based on the particle information extracted from a plurality of the acquisition images acquired prior to respective time points.

Abstract: A control device is configured to perform torque response slip control for bringing an engagement device into a slip engaged state so that transfer torque of the engagement device has a magnitude corresponding to required torque, shift control for shifting the shift speed of an automatic transmission, and transfer torque limit control for limiting the transfer torque of the engagement device to a value equal to or less than a limit value smaller than the required torque, the required torque being torque that is required to be transferred from the rotating electrical machine side to the automatic transmission via the engagement device that connects and disconnects power transmission between the rotating electrical machine and the automatic transmission. The control device performs the transfer torque limit control instead of the torque response slip control in a case where the torque response slip control is being performed when performing the shift control.

Abstract: An image forming apparatus includes an image forming device that forms an image on a recording medium and circuitry that controls the image forming device. The image forming device forms an invisible image with an invisible material on the recording medium and forms a visible image with a visible material on the invisible image. Each of first and second adhesion amounts includes respective adhesion amounts of the visible material and the invisible material per unit area in a portion, in which the visible image is formed on the invisible image, of the composite image. The second adhesion amount is smaller than the first adhesion amount. The controller adjusts the amount of the invisible material included in the second adhesion amount to be smaller than that included in the first adhesion amount, to cause the image forming device to form the image according to the second adhesion amount.

Abstract: An image forming apparatus includes an image forming device that forms an image on a recording medium and circuitry that controls the image forming device. The image forming device forms an invisible image with an invisible material on the recording medium and forms a visible image with a visible material on the invisible image. Each of first and second adhesion amounts includes respective adhesion amounts of the visible material and the invisible material per unit area in a portion, in which the visible image is formed on the invisible image, of the composite image. The second adhesion amount is smaller than the first adhesion amount. The controller adjusts the amount of the invisible material included in the second adhesion amount to be smaller than that included in the first adhesion amount, to cause the image forming device to form the image according to the second adhesion amount.

Abstract: An image forming apparatus includes an image bearer, an image former, a transferor, and circuitry. The image bearer bears an image and an identification pattern. The image former forms the image and the identification pattern on the image bearer. The transferor transfers the image and the identification pattern on the image bearer directly or indirectly to a recording medium. The circuitry determines whether the identification pattern is an image portion pattern arranged at a position superimposed on the image or a position adjacent to the image, or a non-image portion pattern arranged at neither a position superimposed on the image nor a position adjacent to the image. The circuitry further causes the image former to form the non-image portion pattern larger than the image portion pattern.

Abstract: A conveying device includes a plurality of rotating bodies and a plurality of projecting rotators. The rotating bodies are spaced apart in a sheet conveyance direction in which a sheet is conveyed. The projecting rotators are spaced apart in the sheet conveyance direction on a side of an opposite face opposite a liquid applied face of the sheet. Each of the projecting rotator has a plurality of projections projecting radially outward. The rotating bodies are arranged to contact the projecting rotators. A contact pressure of the rotating bodies with the projecting rotators is smaller on an upstream side than on a downstream side in the sheet conveyance direction. One of an interval between the rotating bodies in the sheet conveyance direction and an interval between the projecting rotators in the sheet conveyance direction is smaller on the upstream side than on the downstream side in the sheet conveyance direction.

Abstract: A data analysis device (10) is a data analysis device that extracts groups of important features from multidimensional data by using Sparse Group Lasso, and includes: a matrix norm computation unit (11) that computes a norm of a Gram matrix of given data; a score computation unit (12) that computes a score for a computation-target group among the groups of the data based on the norm; an omission determination unit (13) that determines whether or not to omit computation for the computation-target group based on the score; and a solver application unit (14) that applies, to the computation-target group, computation processing of Block Coordinate Descent used in Sparse Group Lasso in solving an optimization problem, when the omission determination unit (13) determines not to omit the computation for the computation-target group.

Abstract: An image forming apparatus includes an image forming device that forms an image on a recording medium and circuitry that controls the image forming device. The image forming device forms an invisible image with an invisible material on the recording medium and forms a visible image with a visible material on the invisible image. Each of first and second adhesion amounts includes respective adhesion amounts of the visible material and the invisible material per unit area in a portion, in which the visible image is formed on the invisible image, of the composite image. The second adhesion amount is smaller than the first adhesion amount. The controller adjusts the amount of the invisible material included in the second adhesion amount to be smaller than that included in the first adhesion amount, to cause the image forming device to form the image according to the second adhesion amount.

Abstract: A drying device for drying a recording medium includes a medium guide part that guides the recording medium; a heating body that heats the medium guide part; a cover that is arranged opposing the medium guide part such that the medium carrying path intervenes between the cover and the medium guide part and an air flow path is formed with the medium guide part and the cover; a fan that generates an air flow; and (e) a duct that is configured to discharge the air in the air flow path together with a vapor generated as the recording medium is heated, wherein an air intake port that takes the air in the air flow path into the duct is formed on the downstream side of the flow direction with resect to the heating body.

Abstract: A conveying device includes a plurality of rotating bodies and a plurality of projecting rotators. The rotating bodies are spaced apart in a sheet conveyance direction in which a sheet is conveyed. The projecting rotators are spaced apart in the sheet conveyance direction on a side of an opposite face opposite a liquid applied face of the sheet. Each of the projecting rotator has a plurality of projections projecting radially outward. The rotating bodies are arranged to contact the projecting rotators. A contact pressure of the rotating bodies with the projecting rotators is smaller on an upstream side than on a downstream side in the sheet conveyance direction. One of an interval between the rotating bodies in the sheet conveyance direction and an interval between the projecting rotators in the sheet conveyance direction is smaller on the upstream side than on the downstream side in the sheet conveyance direction.

Abstract: A calculation unit (121) calculates, for an output signal of an output layer in a neural network, an output function obtained by replacing an exponential function included in softmax with a product of the exponential function and a predetermined function having no parameter, the output function having a non-linear log likelihood function. An update unit (122) updates a parameter of the neural network on the basis of the output signal such that the log likelihood function of the output function is optimized.

Abstract: A drying device for drying a recording medium includes a medium guide part that guides the recording medium; a heating body that heats the medium guide part; a cover that is arranged opposing the medium guide part such that the medium carrying path intervenes between the cover and the medium guide part and an air flow path is formed with the medium guide part and the cover; a fan that generates an air flow; and (e) a duct that is configured to discharge the air in the air flow path together with a vapor generated as the recording medium is heated, wherein an air intake port that takes the air in the air flow path into the duct is formed on the downstream side of the flow direction with resect to the heating body.

Abstract: A handicraft roller, used for pressing a piece of cloth to put a sharp crease or fold in the fabric, includes an elongated grip with first and second ends spaced from each other in the longitudinal direction of the grip. A rolling member is attached to the first end of the grip so as to be rotatable about a predetermined axis. The rolling member is made up of a constant diameter portion and two decreasing diameter portions flanking the constant diameter portion. The constant diameter portion has an outer diameter that remains constant over a predetermined length of the axis. Each of the decreasing diameter portions has an outer diameter that decreases with increasing distance from the constant diameter portion along the axis.

Abstract: A learning apparatus according to the present invention is a learning apparatus that performs learning using a stochastic gradient descent method in machine learning, and includes: a processor configured to: calculate a first-order gradient in the stochastic gradient descent method; calculate a statistic of the first-order gradient; remove an initialization bias when calculating the statistic of the first-order gradient from the statistic of the first-order gradient calculated; adjust a learning rate by dividing the learning rate by standard deviation of the first-order gradient based on the statistic of the first-order gradient; and update a parameter of a learning model using the learning rate adjusted.

Abstract: A discharging method used in an image forming apparatus includes discharging, with an exposure device, an exposure range of the latent image bearer, and discharging, with a discharger, an area of the latent image bearer outside the exposure range and inside a developing range in a main scanning direction. The exposure range is inside the developing range in the main scanning direction. The discharging with the exposure device and the discharging with the discharger are performed when a rotation of the latent image bearer is stopped after a toner image is transferred from the latent image bearer.

Abstract: A handicraft roller, used for pressing a piece of cloth to put a sharp crease or fold in the fabric, includes an elongated grip with first and second ends spaced from each other in the longitudinal direction of the grip. A rolling member is attached to the first end of the grip so as to be rotatable about a predetermined axis. The rolling member is made up of a constant diameter portion and two decreasing diameter portions flanking the constant diameter portion. The constant diameter portion has an outer diameter that remains constant over a predetermined length of the axis. Each of the decreasing diameter portions has an outer diameter that decreases with increasing distance from the constant diameter portion along the axis.

Abstract: A glass including at least one type of oxide selected from TiO2, Nb2O5, WO3, and Bi2O3 as a glass component therefor, having a total TiO2, Nb2O5, WO3, and Bi2O3 content of at least 20 mol %, and having a ?OH value indicated in formula (1) that fulfills the relationship indicated in formula (2). ?OH=?[ln(B/A)]/t??(1); ?OH?0.4891×ln(1/HR)+2.48??(2).

Abstract: A discharging method used in an image forming apparatus includes discharging, with an exposure device, an exposure range of the latent image bearer, and discharging, with a discharger, an area of the latent image bearer outside the exposure range and inside a developing range in a main scanning direction. The exposure range is inside the developing range in the main scanning direction. The discharging with the exposure device and the discharging with the discharger are performed when a rotation of the latent image bearer is stopped after a toner image is transferred from the latent image bearer.