Abstract: Disclosed are a method and an apparatus for transmitting or receiving uplink feedback information in a communication system. An operation method of a terminal may comprise receiving downlink control information (DCI) from a base station, the DCI including resource allocation information of a physical downlink shared channel (PDSCH); receiving data #n from the base station through the PDSCH indicated by the DCI; generating a hybrid automatic repeat request (HARQ) codebook including an HARQ response bit #n for the data #n and an HARQ response bit #n?1 for data #n?1 received from the base station before the data #n; and transmitting the HARQ codebook to the base station. Therefore, the performance of the communication system can be improved.

Abstract: An actuator group for an automotive power seat according to the present disclosure includes: three or more types of actuators constituting the automotive power seat, and each actuator of the actuator group includes: a motor assembly 10 having a BLDC motor configured therein; and a reducer assembly 20 coupled to the motor assembly 10 on a side where a motor shaft 15 of the BLDC motor extends and receiving a rotational force of the BLDC motor to decelerate, and the reducer assembly 20 is configured differently from each other depending on a type of an actuator, but the motor assembly 10 is shared.

Abstract: The present disclosure provides chemical-mechanical polishing (CMP) particles exhibiting a high polishing rate and a high polishing quality of generating few defects or scratches due to their modified surface thereof. The present disclosure also provides a polishing slurry composition including the polishing particles.

Abstract: An embodiment rail device includes an upper rail, a first bearing support on the upper rail, a lower rail, a bearing connection end on the lower rail and inserted into the first bearing support, a vertically elongated bearing contact adjustment hole on the lower rail, an upper bearing rotatably connected to the bearing connection end and in close contact with a floor of the first bearing support, a lower plate including a fastening groove that receives a lower end of the lower rail, a bearing shaft mounting hole on a wall surface portion of the fastening groove and matched with the bearing contact adjustment hole, a second bearing support outside the fastening groove and having an opened upper portion, a lower bearing rotatably disposed within the second bearing support, and a bearing shaft fastened to the bearing shaft mounting hole and the bearing contact adjustment hole by a screw.

Abstract: A footprint generator capable of applying a constant force includes: a base plate in which a target surface may be on an upper surface of the base plate; a shoe mounting member that is apart from the upper surface of the base plate and capable of mounting a shoe; a driving unit that is apart from the upper surface of the base plate and capable of moving the shoe mounting member up and down; and a force measuring unit configured to measure an impact force when the shoe mounting member descends and contacts the shoe with the target surface to generate a footprint on the target surface.

Abstract: An operation method of a terminal in a communication system may comprise receiving first random access (RA) configuration information and second RA configuration information from a base station; transmitting a Msg1 to the base station based on the second RA configuration information; receiving a Msg2, which is a response to the Msg1, from the base station; and repeatedly transmitting a Msg3 K times to the base station.

Abstract: A mask assembly includes: a mask frame; a mask supported by the mask frame, the mask including a plurality of pattern holes; and a magnetic part disposed on one surface of the mask. The magnetic part provides a magnetic force between the mask and a target substrate and improves an adhesion between the mask and the target substrate to prevent deposition defects.

Abstract: An embodiment rail device includes an upper rail, a first bearing support on the upper rail, a lower rail, a bearing connection end on the lower rail and inserted into the first bearing support, a vertically elongated bearing contact adjustment hole on the lower rail, an upper bearing rotatably connected to the bearing connection end and in close contact with a floor of the first bearing support, a lower plate including a fastening groove that receives a lower end of the lower rail, a bearing shaft mounting hole on a wall surface portion of the fastening groove and matched with the bearing contact adjustment hole, a second bearing support outside the fastening groove and having an opened upper portion, a lower bearing rotatably disposed within the second bearing support, and a bearing shaft fastened to the bearing shaft mounting hole and the bearing contact adjustment hole by a screw.

Abstract: A display apparatus includes a display panel, a driving controller and a data driver. The driving controller processes input image data according to a variable input frequency and generates a data signal having a varied frame length. The data driver converts the data signal into a data voltage and outputs the data voltage to the display panel. The driving controller determines a variable frequency mode and generates an asymmetric data signal including a positive data signal and a negative data signal which are asymmetric with respect to a common voltage for a same grayscale value in the variable frequency mode.

Abstract: An operation method of a first terminal, for synchronized operations according to time-sensitive networking, may comprise: receiving information on a reference time from a base station; obtaining an offset of the first terminal with respect to the reference time or information for deriving the offset, and deriving the offset from the information for deriving the offset; determining a timing at which uplink transmission is performed by reflecting the offset to the reference time; and performing the uplink transmission at the determined timing.

Abstract: A device for displaying lateral rear images of a vehicle using a room mirror for a vehicle, includes: a smart room mirror 10 equipped with a camera sensor 11 for recognizing a driver's gesture and a motion sensor 12 for recognizing a driver's 3D gesture; camera modules 310, 410 for capturing vehicle lateral rear images, installed in left and right side-view mirrors 30, 40 of a vehicle 20; and a central processing device 60 for controlling to store, compare and analyze image information from the camera modules 310, 410 installed in the left and right side-view mirrors 30, 40, respectively, and image information from the camera sensor 11 and the motion sensor 12 of the smart room mirror 10, the central processing device 60 controlling to access a black box 50 and a communication module 51 and receive images stored in the black box 50.

Abstract: Provided are an environmental gas sensor and a method of manufacturing the same. The environmental gas sensor includes an insulating substrate, metal electrodes formed on the insulating substrate, and a sensing layer in which different kinds of nanofibers are arranged perpendicular to each other on the metal electrodes. Thus, the environmental gas sensor can simultaneously sense two kinds of gases.

Abstract: Provided are an environmental gas sensor and a method of manufacturing the same. The environmental gas sensor includes an insulating substrate, metal electrodes formed on the insulating substrate, and a sensing layer in which different kinds of nanofibers are arranged perpendicular to each other on the metal electrodes. Thus, the environmental gas sensor can simultaneously sense two kinds of gases.

Abstract: An ultra-sensitive gas sensor using semiconductor oxide nanofibers and a method of fabricating the same are provided. The gas sensor includes an insulating substrate, a metal electrode formed on the insulating substrate, and a semiconductor metal oxide nanofibers layer formed on the metal electrode and having nanoparticles of high sensitivity coated thereon. The method of fabricating a semiconductor oxide nanofibers gas sensor includes fabricating an oxide using a solution for electrospinning, electrospinning the solution, performing an annealing process to form an oxide semiconductor nanofiber, and partially coating a nano-sized metal oxide or metal catalyst particle having high sensitivity to a specific gas on a surface of the nanofiber having a large specific surface area. As a result, a semiconductor oxide nanofibers gas sensor having ultra sensitivity, high selectivity, fast response and long-term stability can be fabricated.

Abstract: Provided are a method of fabricating a multilayered thin film transistor using a plastic substrate and an active matrix display device including the thin film transistor fabricated by the method. The method includes: preparing a substrate formed of plastic; forming a buffer insulating layer on the plastic substrate; forming a silicon layer on the buffer insulating layer; patterning the silicon layer to form an active layer; forming a gate insulating layer on the active layer; stacking a plurality of gate metal layers on the gate insulating layer; patterning the plurality of gate metal layers; and etching a corner region of the lowest gate metal layer formed on the gate insulating layer of the patterned gate metal layers. Accordingly, a gate metal is formed which includes a multilayered gate metal layer and has an etched corner region, thereby reducing an electric field of the corner to reduce a leakage current of the TFT.

Abstract: A nano-crystalline composite-oxide thin film for an environmental gas sensor, an environmental gas sensor using the thin film, and a method of manufacturing the environmental gas sensor are provided. The nano-crystalline composite-oxide thin film is formed of hetero-oxide nano-crystalline particles having independent crystalline phases from each other, and the environmental gas sensor including the thin film has excellent characteristics including high sensitivity, high selectivity, high stability and low power consumption.

Abstract: Provided are a method of fabricating a multilayered thin film transistor using a plastic substrate and an active matrix display device including the thin film transistor fabricated by the method. The method includes: preparing a substrate formed of plastic; forming a buffer insulating layer on the plastic substrate; forming a silicon layer on the buffer insulating layer; patterning the silicon layer to form an active layer; forming a gate insulating layer on the active layer; stacking a plurality of gate metal layers on the gate insulating layer; patterning the plurality of gate metal layers; and etching a corner region of the lowest gate metal layer formed on the gate insulating layer of the patterned gate metal layers. Accordingly, a gate metal is formed which includes a multilayered gate metal layer and has an etched corner region, thereby reducing an electric field of the corner to reduce a leakage current of the TFT.