Abstract: An object is to provide a highly reliable display unit having a function of sensing light. The display unit includes a light-receiving device and a light-emitting device. The light-receiving device includes an active layer between a pair of electrodes. The light-emitting device includes a hole-injection layer, a light-emitting layer, and an electron-transport layer between a pair of electrodes. The light-receiving device and the light-emitting device share one of the electrodes, and may further share another common layer between the pair of electrodes. The hole-injection layer is in contact with an anode and contains a first compound and a second compound. The electron-transport property of the electron-transport layer is low; hence, the light-emitting layer is less likely to have excess electrons. Here, the first compound is the material having a property of accepting electrons from the second compound.

Abstract: A learning unit of an operation management system extracts, according to performance information and event logs of a device to be managed, a first abnormality occurrence period using the performance information, calculates a first TF-IDF vector created using event logs in the first abnormality occurrence period, and stores at least the first TF-IDF vector as a learning model. A recommendation section calculates, using the performance information and event logs newly acquired by the device, a second abnormality occurrence period and a second TF-IDF vector, calculates a first degree of similarity between the first TF-IDF vector in the learning model and the second TF-IDF vector, and outputs recommendation information regarding the calculated second abnormality occurrence period when the first degree of similarity is equal to or less than a predetermined value.

Abstract: A centrifugal compressor includes: a compressor impeller; a motor including a stator and a rotor; and a housing. The rotor includes a tubular member, a magnetic body, a first shaft member and a second shaft member, an axial passage, and a plurality of radial passages. A dimension of each of the radial passages in a circumferential direction of the second shaft member gradually increases toward a radially outward side of the second shaft member. Each of the radial passages includes an opening that is opened at the outer peripheral surface of the second shaft member. The outer peripheral surface of the second shaft member has an interposed surface that is interposed between the opening of one of the radial passages and the opening of another of the radial passages adjacent to each other in the circumferential direction of the second shaft member.

Abstract: An ultrasonic wave converging part (12) and a waveguide (13) have a through-hole (20) penetrating the converging part and the waveguide in a front-rear direction. An inner circumferential surface (20A) forming the through-hole has inner circumferential surface (21) and deformed portion (23) located on a front-end side relative to the inner circumferential surface. The inner circumferential surface has, as a cross-sectional shape in the front-rear direction, a shape linearly extending in the front-rear direction. The deformed portion is, in a cross section in the front-rear direction, at least one of a portion located inward of the inner circumferential surface and a portion located outward of the inner circumferential surface (FIG. 1 showing the portion located inward of the first inner circumferential surface), and is formed in a part of or over an entire circumference (FIG. 1 showing the entire circumference) of the inner circumferential surface in a circumferential direction.

Abstract: An image forming apparatus includes an image forming unit configured to form an image with toner, a halftone processor configured to convert image data by performing halftone processing, a first determining unit configured to determine a first toner consumption amount for each page based on the image data, a second determining unit configured to determine a second toner consumption amount for each page based on the converted image data, a print percentage calculator configured to calculate a print percentage for one page based on the first toner consumption amount, a notifying unit configured to notify a remaining amount of the toner of the image forming unit based on the first toner consumption amount of a page of which the print percentage is larger than a threshold and the second toner consumption amount of a page of which the print percentage is equal to or smaller than the threshold.

Abstract: A potassium sodium niobate sputtering target having a relative density of 95% or higher. A method of producing a potassium sodium niobate sputtering target, including the steps of mixing a Nb2O5 powder, a K2Co3 powder, and a Na2Co3 powder, pulverizing the mixed powder to achieve a grain size d50 of 100 ?m or less, and performing hot press sintering to the obtained pulverized powder in an inert gas or vacuum atmosphere under conditions of a temperature of 900° C. or higher and less than 1150° C., and a load of 150 to 400 kgf/cm2. A high density potassium sodium niobate sputtering target capable of industrially depositing potassium sodium niobate films via the sputtering method is provided.

Abstract: The manufacturing method of a porous silicon material of the present disclosure includes a particle forming step of melting a raw material containing Al as a first element in an amount of 50% by mass or more and Si in an amount of 50% by mass or less to obtain a silicon alloy, a pore forming step of removing the first element from the silicon alloy to obtain a porous material, and a heat treatment step of heating the porous material to diffuse elements other than Si to a surface of the porous material.

Abstract: A motor control device includes a timer circuit, a control mode setting unit, a PWM control unit, an angle calculation unit, and an angle synchronization control unit. The PWM control unit switches the operation mode of the angle synchronization control unit according to the control mode set by the control mode setting unit, and executes the PWM control when the operation mode of the angle synchronization control unit is the PWM mode. The angle synchronization control unit executes the angle synchronization control when the operation mode is the angle synchronization mode.

Abstract: A work tool includes: a motor; a housing including a gripping part; an electronic switch; a controller controlling the motor based on a signal from the switch; an operating part provided at the gripping part; and an intervening part movably intervened between the operating part and the switch. The switch is provided at the housing at a first position in an axial direction of the gripping part, and is switchable between an ON position for driving the motor and an OFF position for stopping the motor. A direction connecting the ON position and the OFF position to each other is a crossing direction crossing the axial direction. The operating part is movable in the crossing direction to drive and stop the motor. The intervening part transmits movement to the switch by a moving amount smaller than movement in the crossing direction of the operating part passing through the first position.

Abstract: Provided is a tungsten sintered sputtering target, wherein the phosphorus content is 1 wtppm or less and the remainder is other unavoidable impurities and tungsten. The inclusion of phosphorus heavily affects the abnormal grain growth of tungsten and the deterioration in the target strength. In particular, if phosphorus is contained in an amount exceeding 1 ppm, crystal grains subject to abnormal grain growth will exist in the tungsten target. Thus, the object is to prevent the abnormal grain growth of tungsten and improve the product yield of the target by strongly recognizing the phosphorus contained in the tungsten as a harmful impurity and controlling the inclusion thereof to be as low as possible.

Abstract: The present concepts relate to devices that can approximate virtual objects when touched by a user. One example device can include a location assembly configured to sense a location of the device on a surface and configured to move the robotic device on the surface and a shape assembly secured to the location assembly and configured to adjust a height and a pitch of an upper surface of the robotic device.

Abstract: An ultrasonic transducer (1) includes a base portion (14), a piezoelectric element (11), a vibration plate (10), and a resonator (12). The resonator (12) is joined to a first surface (21) of the vibration plate (10). A surface, of the piezoelectric element (11), on a side opposite to a side on which the piezoelectric element is joined to the base portion (14), is joined to a second surface (22) of the vibration plate (10). A through-hole (30) is formed in the piezoelectric element (11) so as to penetrate therethrough in a thickness direction of the vibration plate (10). In a planar direction orthogonal to the thickness direction of the vibration plate (10), a joined portion (40) between the vibration plate (10) and the resonator (12) is located inward of a node (20) of vibration of the vibration plate (10), and the through-hole (30) is located inward of the node (20).

Abstract: An ultrasonic transducer (1) including: a plurality of vibrators (11); and a connection portion (30) connecting the vibrators (11) to each other. Each of the vibrators (11) has a piezoelectric element (21) and a vibration plate (20) joined to the piezoelectric element (21). The connection portion (30) connects the vibration plates (20) to each other. A width (W2) of the connection portion (30) is smaller than a width (WI) of the vibration plate (20). In this configuration, the relative positional relationship among the vibrators (11) is easily stabilized.

Abstract: A processing device generates, for learning data including a query text, label and reply text, a first sentence vector including a vector about the query text, generates, based on the first sentence vector, a first model that, when the query text is input, outputs a label corresponding to the input query text, divides the learning data for each label, generates a second sentence vector, including vectors for each word, about the query text included in the divided learning data for each label, makes the second sentence vector a second model, generates, based on the first model and the second model, a recommended reply text to a new query text and a reason for recommendation of the recommended reply text, and presents the recommended reply text and the reason for recommendation that were generated.

Abstract: The manufacturing method of a porous silicon material of the present disclosure includes a particle forming step of melting a raw material containing Al as a first element in an amount of 50% by mass or more and Si in an amount of 50% by mass or less to obtain a silicon alloy, a pore forming step of removing the first element from the silicon alloy to obtain a porous material, and a heat treatment step of heating the porous material to diffuse elements other than Si to a surface of the porous material.

Abstract: An image forming apparatus includes an image forming unit configured to form an image on a sheet of perforated paper; an input unit configured to receive first information and second information; and a processor configured to display an alarm display without performing sheet-passing of the sheet of perforated paper. The first information is information concerning the sheet of perforated paper on which an image is to be formed by the image forming unit and the second information is information concerning whether to perform automatic double-sided printing on the sheet of perforated paper or not. The processor is configured to display the alarm display in a case where the automatic double-sided printing is instructed and it is determined that the sheet of perforated paper has a cut-off portion.

Abstract: An image forming apparatus includes a fixing portion including a fixing nip for fixing a toner image on a sheet. A controller executes image formation on a first sheet and a second sheet of which size in a widthwise direction is larger than that of the first sheet. The controller changes a time from when a trailing end of the sheet has passed through the fixing nip until when a following sheet reaches the fixing nip. When a width of the toner image to be formed on the sheet in the widthwise direction is defined as an image area width, the controller controls so that the time when the width of the first sheet is equal to or longer than the image area width of the second sheet is shorter than the time when the width of the first sheet is shorter than the image area width.

Abstract: An electric tool is provided which enables preventing adherence to a rotor core of dust, such as iron powder, that has entered a motor. The electric tool includes a cylindrical motor housing 10 accommodating and supporting the motor, and a cooling fan attached to a rotation shaft of the motor, and cools the motor by flowing air generated by the cooling fan toward the back or front of the motor housing 10, wherein a fan guide 50 guiding cooling air is provided in front of an insulator 35 of a stator 30 of the motor. The fan guide 50 includes a first cylindrical part 51 which covers a rotation space of the cooling fan, a guide surface 53, and a second cylinder 55 which extends backward from the guide surface 53, wherein a labyrinth space 39 is formed by the insulator 35 and the second cylinder 55. By providing the labyrinth space 39, it is possible to block the flow of cooling air from the outer peripheral side of the stator 30 to an opening 53a.