Abstract: Example embodiments include a battery insulation sheet having a structure in which a first substrate, an aerogel layer, and a second substrate are laminated, wherein opposite surfaces of the aerogel layer is in contact with the first substrate or the second substrate adjacent thereto. Example embodiments also include a method of manufacturing a battery insulation sheet, and a battery module including the battery insulation sheet.

Abstract: An activation function conversion program unit and method may be configured to approximate a target activation function to a programmed activation function through machine-learning of an artificial neural network. The method may include setting up a target activation function; approximating the target activation function to a programmed activation function by machine-learning an artificial neural network; and converting the programmed activation function into a slope and offset and storing it in a lookup table. Accordingly, the computation speed and power consumption of the programmed activation function execution unit of an NPU may be optimized.

Abstract: An optical inspection device includes: a barrel; a first light source unit at a first side of the barrel and configured to irradiate light of a first wavelength range through a first light path; a second light source unit at a second side of the barrel, the second side being different from the first side, and configured to irradiate light of a second wavelength range that is different from the first wavelength range through a second light path; and a camera. At least a portion of the first light path is different from the second light path.

Abstract: A security-enhanced vehicle authentication system enables user authentication only through a device previously registered in a security server. The vehicle authentication system includes: a vehicle controller configured to be installed in a vehicle and to determine whether to allow the vehicle to be driven through user authentication; a user terminal configured to generate authentication data related to the user authentication and to transmit the authentication data to the vehicle controller; and a security server configured to generate a secret key and an encryption key for generating the authentication data. The security server may generate the secret key and the encryption key using unique information of at least any one of the vehicle controller or the user terminal.

Abstract: A network system can communicate with user and provider devices to facilitate the provision of a network-based service. The network system can identify optimal service providers to provide services requested by users. The network can utilize context data in matching service providers with users. In particular, the network system can determine, based on context data associated with a user, whether to perform pre-request matching for that user. A service provider who is pre-request matched with the user can be directed by the network system to relocate via a pre-request relocation direction. When the user submits the service request after the pre-request match, the network system can either automatically transmit an invitation to the pre-request matched service provider or can perform post-request matching to identify an optimal service provider for the user.

Abstract: A method of controlling an aerosol generating device includes measuring a temperature of a heater, selecting one of a plurality of temperature correction algorithms, based on the measured temperature, and correcting the measured temperature by applying the selected temperature correction algorithm. In addition, a method of controlling an aerosol generating device includes measuring a temperature of a heater operating in an operation section including a plurality of sections, determining, from among the plurality of sections, a current section in which the heater is operating, selecting one of a plurality of temperature correction algorithms, based on the selected current section of the heater, and correcting the measured temperature of the heater by applying the selected temperature correction algorithm.

Abstract: The present invention relates to a flat-plate focusing ultrasonic transducer and an acoustic lens composed of an annular array piezoelectric element and methods of manufacturing and designing thereof, more particularly to a flat-plate focusing ultrasonic transducer composed of an annular array piezoelectric element, wherein the annular array piezoelectric element has a plurality of concentric regions which is concentrically arranged in a concentric circle shape with respect to a center point, the concentric region has ring shaped sound insulation regions and piezoelectric regions which are alternatively formed in a direction from the center point to a radius direction, so as to focus a sound wave near a focal point, wherein the piezoelectric regions are composed of a piezoelectric ring that is composed of a piezoelectric material and thus excites a sound wave, the concentric region is in a shape of a flat-plate of which both sides are flat and which has a constant thickness, and each radius of the plurality o

Abstract: Disclosed is a mobile negative pressure chamber, that includes a bed, a main cover separably coupled to the bed, and having a main cavity, an auxiliary cover coupled to one side of the bed to be separable, that seals the main cavity while being engaged with the main cover, and having an auxiliary cavity, in which a lower body of the surgical recipient is located in an interior thereof, a main treatment part provided in at least one of the main cover and the auxiliary cover, and provided with a glove mounted on an arm of the surgical operator, and an auxiliary treatment part provided in at least one of the main cover and the auxiliary cover, and into and from which the arm of the surgical operator or a medical instrument is inserted and extracted.

Abstract: A display device including a scan line extending in a first direction, a sensing scan line extending in the first direction and spaced from the scan line, a data line extending in a second direction crossing the first direction, a sensing line extending in the second direction and spaced from the data line, a sensing enable signal line extending in the second direction and spaced from the data line and the sensing line, and a sub-pixel connected to the scan line, the sensing scan line, the data line, the sensing line, and the sensing enable signal line. The sub-pixel includes a plurality of light emitting elements between a first node and a second node, a first transistor configured to supply a driving current to the first node according to a voltage of a gate electrode, and a second transistor to control a connection between the first and second nodes.

Abstract: An apparatus for controlling a suspension of a vehicle to improve ride comfort of the vehicle includes: a sensor that measures rainfall around the vehicle, a camera that takes an image of a road surface ahead the vehicle, and a controller that recognizes an obstacle located on the road surface based on the image of the road surface ahead the vehicle. In particular, the controller determines a type of the obstacle depending on the measured rainfall around the vehicle, and controls a damping force of the suspension based on control information corresponding to the determined type of the obstacle when the vehicle passes over the obstacle.

Abstract: Disclosed is a convenience equipment pull-out device for a vehicle. The convenience equipment pull-out device includes: a housing mounted on a headliner of the vehicle, a body which is mounted on the housing and coupled to a movable driving portion and to a plurality of movement guides. In particular, the body slides along the movement guides when the driving portion is driven. The device further includes a pull-out portion rotatably coupled to the body and selectively pulled out towards the interior of the vehicle while a hinge region connected to the body slides along a guide rail member of the housing.

Abstract: A display device includes a display part, a degradation compensator that generates a first compensated grayscale value by compensating for a first grayscale value corresponding to a first pixel, and generates a second compensated grayscale value by compensating for a second grayscale value corresponding to a second pixel, and a data driver that generates a first data signal based on the first compensated grayscale value to supply the first data signal to the first pixel, and generates a second data signal based on the second compensated grayscale value to supply the second data signal to the second pixel. A second degradation curve is defined by a first degradation coefficient corresponding to a first degradation curve, and a second degradation coefficient corresponding to a first estimated degradation curve for the light conversion particles of a second color calculated by applying the first degradation curve.

Abstract: The present disclosure discloses a quick-connecting receptacle for a liquid hydrogen storage tank. The quick-connecting receptacle comprises: a storage tank for storing liquid hydrogen; and a receptacle connecting an external transmission pipe and the storage tank so that liquid hydrogen introduced through the external transmission pipe is stored in the storage tank. The receptacle includes an upper receptacle connected to a lower end portion of the transmission pipe and a lower receptacle connected to an upper portion of the storage tank. The lower receptacle includes a cylinder member accommodated therein, and as the cylinder member moves up and down, liquid hydrogen or gaseous hydrogen is stored in the storage tank or liquid hydrogen or gaseous hydrogen is discharged from the storage tank to outside.

Abstract: A display device includes: a memory; a pixel unit including first pixels disposed with a first density in a first area and second pixels disposed with a second density smaller than the first density in a second area in contact with the first area; and a degradation compensator which updates degradation information stored in the memory, based on input grayscales for the first and second pixels, and changes the input grayscales to output grayscales, based on the degradation information. The degradation compensator stores the degradation information in the memory in a unit of block for the pixel unit. The memory stores only first degradation information for each of first blocks including only the first pixels, stores only second degradation information for each of second blocks including only the second pixels, and stores the first and second degradation information for each of third blocks including both the first and second pixels.

Abstract: A random access method performed by a communication node may comprise: receiving RACH configuration information; measuring a distance between a base station and a terminal or a signal characteristic value corresponding to the distance between the base station and the terminal; determining a timing offset value to be applied to random access preamble transmission using the signal characteristic value, preset threshold value, and preset timing offset value; and transmitting a random access preamble generated on the basis of the RACH configuration information to the base station, wherein the threshold value and the timing offset value are included in the RACH configuration information.

Abstract: The present disclosure relates to a hydrogen liquefaction system, comprising a hydrogen pipe, where gaseous hydrogen is introduced at a front end, heat exchange occurs in a heat exchange unit leading to liquefaction of gaseous hydrogen into liquid hydrogen; a pre-cooling device formed between the front end of the hydrogen pipe and the first heat exchange unit; an oxygen pipe, where gaseous oxygen is introduced at a front end, heat exchange occurs in the pre-cooling device leading to liquefaction of gaseous oxygen into liquid oxygen; and a heat exchange device, which is in thermal contact with the first heat exchange unit of the hydrogen pipe so as to perform heat exchange with the first heat exchange unit of the hydrogen pipe such that pre-cooled gaseous hydrogen can be liquefied into liquid hydrogen.

Abstract: The present disclosure relates to a hydrogen liquefaction system and hydrogen liquefaction method optionally enabling O-P conversion in a hydrogen liquefaction process, and may include: a hydrogen pipe, where gaseous hydrogen is introduced at a front end, heat exchange occurs in a heat exchange section leading to liquefaction of gaseous hydrogen into liquid hydrogen, and liquefied liquid hydrogen can be discharged at a rear end; a cooling cycle device that is in thermal contact with the heat exchange section of the hydrogen pipe so as to perform heat exchange with the heat exchange section of the hydrogen pipe such that gaseous hydrogen can be liquefied into liquid hydrogen; and an Ortho-Para (O-P) converter formed in the hydrogen pipe, converting a ratio of ortho-hydrogen to para-hydrogen in a process of liquefying gaseous hydrogen into liquid hydrogen.

Abstract: The present disclosure relates to a hydrogen liquefaction system and hydrogen liquefaction method capable of increasing a hydrogen liquefaction amount through a pre-cooling process, and may comprise a hydrogen pipe, where gaseous hydrogen is introduced at a front end, heat exchange occurs in a heat exchange section leading to liquefaction of gaseous hydrogen into liquid hydrogen, and liquefied liquid hydrogen can be discharged at a rear end; a pre-cooling device formed between the front end of the hydrogen pipe and the heat exchange section, pre-cooling gaseous hydrogen; and a cooling cycle device, which is in thermal contact with the heat exchange section of the hydrogen pipe so as to perform heat exchange with the heat exchange section of the hydrogen pipe such that pre-cooled gaseous hydrogen can be liquefied into liquid hydrogen.

Abstract: The present disclosure relates to a hydrogen liquefaction device, which may comprise: a cradle for forming an accommodating space in which a mobile storage container capable of storing liquefied hydrogen or a mobility that uses liquefied hydrogen as a power source can be accommodated; and a liquefier installed on one side of the cradle, cooling hydrogen in a gaseous state supplied from outside to a temperature which is equal to or below liquefaction temperature to generate liquefied hydrogen in a liquid state so as to supply liquefied hydrogen to the mobile storage container or the mobility, or recover vaporized gas generated from the mobile storage container in which liquefied hydrogen is stored or from the mobility for re-liquefaction into liquefied hydrogen.

Abstract: A display device includes a display panel including sub-pixels arranged in an image display region of the display panel to display an image, a data driver that applies a data voltage to data lines, a scan signal driver that applies scan signals to scan signal lines, a data compensator that analyzes image data received from an outside to divide at least one deterioration region and deterioration peripheral regions, and compares and analyzes image data of the at least one deterioration region and the deterioration peripheral regions to compensate or modulate the image data of the at least one deterioration region, and a timing controller that controls the data driver and the scan signal driver to display compensation data including the compensated or modulated image data as an image.