Abstract: An aspect of the present invention may provide a method for manufacturing a welded steel pipe having superior wear resistance and low-temperature toughness. And, the present invention may also provide a method for manufacturing a welded steel pipe having particularly suitable physical properties for delivering the slurry by minimizing occurrence of high-temperature cracks in a welded portion.

Abstract: A vehicle powertrain shift control method includes a step of determining which of four types of divided hydraulic pressure difference areas a main hydraulic pressure difference belongs, by a controller, the main hydraulic pressure difference being a value obtained by subtracting a coupling-side preparatory hydraulic pressure from a coupling-side preliminary target pressure, and a step of limiting the inclination of the control hydraulic pressure corrected calculated value of a first shift initiation phase or a second shift initiation phase so as not to deviate from predetermined limit values, by the controller, when corresponding to an area in which the main hydraulic pressure difference is equal to/less than a predetermined positive first reference value, and an area in which the main hydraulic pressure difference is equal to/larger than a predetermined negative second reference value, respectively, among the four types of hydraulic pressure difference areas.

Abstract: According to aspects of the present invention, provided are a welded steel tube and a manufacturing method for the same which can provide excellent wear resistance and also minimize hot cracking of the welded portion, so a lifespan thereof may be effectively maximized even when applied in harsh wear-resistant environments.

Abstract: A shift control method for a vehicle powertrain includes determining, by a controller, whether a transmission is shifting and determining the type of shifting when the transmission is shifting, selecting a predetermined control matrix depending on whether the transmission is shifting and the type of shifting, calculating a necessary torque of a control target shift element on the basis of the selected control matrix, calculating a control hydraulic pressure for implementing the necessary torque of the control target shift element, and controlling the control target shift element by using the calculated control hydraulic pressure, and the control matrix is calculated by using relationship formulas of angular velocities, angular accelerations, moments of inertia, and torques of powertrain components and using a boundary condition according to a state of the transmission.

Abstract: A touch sensor includes a first electrode, a second electrode, and a sensing channel. The first electrode includes first electrode cells arranged in a first direction, a first connection portion connecting the first electrode cells in the first direction and a first opening disposed in at least one of the first electrode cells. The second electrode includes an electrode portion disposed in the first opening. The electrode portion is disposed on a same layer as the first electrode cells and separated from the first electrode. The sensing channel includes a first terminal and a second terminal. The first terminal is connected to the first electrode. The second terminal is connected to the second electrode.

Abstract: A method of producing three-dimensional face scan data according to the present disclosure includes the steps of: acquiring a face image obtained by photographing a face of a patient; generating 3D data from the face image; acquiring a tooth area image obtained by photographing a tooth area of the patient; generating tooth area 3D data from the tooth area image; extracting a tooth area contour for the face image or the face 3D data; separating and acquiring tooth area contour 3D data corresponding to the tooth area contour from the tooth area 3D data; and aligning and inserting the tooth area contour 3D data to the face 3D data.

Abstract: An arc extinguishing unit and an air circuit breaker comprising same are disclosed. The arc extinguishing unit according to an embodiment of the present disclosure comprises an arc extinguishing magnet located above a grid. The arc extinguishing magnet forms a magnetic field in the arc extinguishing part and in a fixed contact and a movable contact that are located adjacent to the arc extinguishing part. An arc generated as the fixed contact and the movable contact are separated from each other receives an electromagnetic force in the formed magnetic field. The electromagnetic force passes through the grid and is formed in a direction facing the exterior of the arc extinguishing part. Thus, the generated arc may be quickly extinguished and moved.

Abstract: A touch sensor includes a base layer; a first electrode member that includes a plurality of first electrodes arranged on the base layer and electrically connected to each other along a first direction, each of the first electrodes including a first opening; a second electrode member that includes a plurality of second electrodes arranged on the base layer and electrically connected to each other along a second direction that intersects the first direction; a conductive member that includes a plurality of conductive patterns electrically connected to each other along the first direction; and a proximity detector that is electrically connected to the conductive member and configured to detect proximity of an object by receiving a proximity sensing signal from the conductive member. Each of the conductive patterns is located in the first opening of each of the first electrodes and spaced apart from each of the first electrodes, respectively.

Abstract: A method and apparatus for providing a service based on a digital card connected to a digital code are provided. A service providing server is configured to generate a digital code connected to a service account of a partner terminal by connecting a plurality of digital codes selected by the partner terminal to a digital code and a user terminal is configured to use a digital card associated with the a user account among the plurality of digital cards connected to the digital code by scanning the digital code displayed on an online area and an offline area.

Abstract: A display device includes: a substrate; a first sensor electrode and a second sensor electrode disposed on the substrate; an antenna electrically separated from the first sensor electrode to transmit and receive radio frequency signals; and an antenna feed line electrically connected to the antenna pattern.

Abstract: A touch sensor includes first touch electrode members disposed on a base layer and located in a sensing area, each of the first touch electrode members including a plurality of first touch electrodes arranged along a first direction, each of the first touch electrodes including a first opening; second touch electrode members disposed on the base layer and located in a sensing area, each of the second touch electrode members including second touch electrodes arranged along a second direction, each of the second touch electrodes including a second opening; and a first pressure sensor disposed on the base layer and including a first strain gauge. A portion of the first strain gauge is located in the second sensing area, and the first strain gauge includes a portion located in the second sensing area and disposed in the same layer as the first touch electrodes and the second touch electrodes.

Abstract: A touch sensor includes a first electrode, a second electrode, and a sensing channel. The first electrode includes first electrode cells arranged in a first direction, a first connection portion connecting the first electrode cells in the first direction and a first opening disposed in at least one of the first electrode cells. The second electrode includes an electrode portion disposed in the first opening. The electrode portion is disposed on a same layer as the first electrode cells and separated from the first electrode. The sensing channel includes a first terminal and a second terminal. The first terminal is connected to the first electrode. The second terminal is connected to the second electrode.

Abstract: The present disclosure provides an entrance and exit position detection device for a power device. The entrance and exit position detection device for a power device comprises: a cradle which is open on one side and has an arrangement space formed therein; a power device body which may be in the arrangement space and has a guide plate formed on one side portion thereof; and a position detection part which linearly detects the displaced position of the power device body while the cradle enters and exits the arrangement space. Also, the present disclosure provides an entrance and exit monitoring system which has the above-described entrance and exit position detection device for the power device.

Abstract: A display device includes a display region and a sensing region overlapping with each other, a plurality of pixels in the display region, a plurality of first electrodes arranged in a first direction in the sensing region, a plurality of second electrodes arranged in a second direction in the sensing region, and a driving circuit including a display driver for driving the pixels corresponding to image data, and a touch driver for sensing a touch input using a sensing signal input from each of the first electrodes, and configured to supply a noise compensation signal corresponding to the image data to the second electrodes during a period in which the pixels are driven.

Abstract: A method of controlling a powertrain of a vehicle includes determining, by a controller, whether or not a transmission is shifting and, if the transmission is shifting, the type of shifting, selecting a predetermined control matrix according to whether or not the transmission is shifting and the type of shifting, calculating a required torque of a transmission component to be controlled based on the selected control matrix, calculating a hydraulic control pressure to implement the required torque of the transmission component to be controlled, and controlling the transmission component to be controlled using the calculated hydraulic control pressure, wherein the control matrix is calculated using correlation equations of angular velocities, angular accelerations, moments of inertia, and torques of powertrain components, and boundary conditions according to the state of the transmission.

Abstract: A display device includes: a substrate; a first sensor electrode and a second sensor electrode disposed on the substrate; an antenna electrically separated from the first sensor electrode to transmit and receive radio frequency signals; and an antenna feed line electrically connected to the antenna pattern.

Abstract: According to an embodiment of the disclosure, there is provided a drone control system in which the drone user may directly adjust the torque required in the flight environment, that is, the torque required by the drone motor, with the transmitter control when controlling the transmitter stick. According to an embodiment, a drone control system comprises a flight controller receiving a stick control value from a transmitter, converting the stick control value into a motor speed value, and outputting the motor speed value and an electronic speed controller receiving the motor speed value from the flight controller, converting the motor speed value into a motor torque value, converting the motor torque value into a power driving value, and outputting the power driving value to a motor.

Abstract: The present invention relates to a server and a method for providing an exercise management solution to a user. Furthermore, one embodiment of the present invention relates to technology applying the look-up table (LUT). Furthermore, one embodiment of the present invention relates to technology applying artificial intelligence.

Abstract: A touch detecting unit comprises first sensor electrodes arranged in a first direction and electrically connected with one another; second sensor electrodes arranged in a second direction crossing the first direction, and electrically connected with one another, the second sensor electrodes electrically separated from the first sensor electrodes, and third sensor electrodes electrically separated from the first sensor electrodes and the second sensor electrodes. Amounts of change in first capacitances between the first sensor electrodes and the second sensor electrodes are detected in a first mode. Amounts of change in the first capacitances and amounts of change in a second capacitance between the first sensor electrodes and the third sensor electrodes are detected in a second mode.

Abstract: A touch sensor includes a base layer; a first electrode member that includes a plurality of first electrodes arranged on the base layer and electrically connected to each other along a first direction, each of the first electrodes including a first opening; a second electrode member that includes a plurality of second electrodes arranged on the base layer and electrically connected to each other along a second direction that intersects the first direction; a conductive member that includes a plurality of conductive patterns electrically connected to each other along the first direction; and a proximity detector that is electrically connected to the conductive member and configured to detect proximity of an object by receiving a proximity sensing signal from the conductive member. Each of the conductive patterns is located in the first opening of each of the first electrodes and spaced apart from each of the first electrodes, respectively.