Abstract: In a sound system that uses over-the-air (OTA), a blockchain platform server is configured to support performance of a virtual sound transaction in a virtual environment. An OTA server is configured to manage a virtual sound transmitted from the blockchain platform server. A vehicle communication control device is configured to perform wireless communication with the OTA server. The vehicle communication control device is configured to download the virtual sound from the OTA server, determine whether the virtual sound is similar to a predetermined specific sound, perform an OTA state test of the virtual sound when the virtual sound is not similar to the predetermined specific sound, and control a sound processing device to play the virtual sound when the virtual sound passes the OTA state test.

Abstract: A two-way welding gun includes a first welding tip or a second welding tip selected to be used depending on the shape of the flange of a vehicle body panel, which is an object for the spot welding, so that flanges of first vehicle body panels each including a shape matching the first welding tip are easily spot welded to each other using the first welding tip, and flanges of second vehicle body panels each including a shape different from the first welding tip but matching the second welding tip are easily spot welded to each other using the second welding tip.

Abstract: A DC-DC converter according to an embodiment of the present invention comprises: a maximum power point tracking control unit for performing a maximum power point tracking control when a communication module is connected to a solar panel; and a constant current/constant voltage control unit for receiving an input of power output from the maximum power point tracking control unit, outputting power having a constant voltage at the time of constant voltage control, and outputting power having a constant current at the time of constant current control.

Abstract: A hydrogen supply method includes a two-side heat exchange mode in which both introducing a second fluid into a hydrogen storage part after the second fluid exchanges heat with a first fluid in a second heat exchanger in a state in which a compressor is driven to compress the first fluid and introducing the second fluid into the hydrogen storage part after the second fluid is heated or cooled in a thermal device are performed. The method also includes a one-side heat exchange mode in which one of introducing the second fluid into the hydrogen storage part after the second fluid exchanges heat with the first fluid in the second heat exchanger in a state in which the compressor is driven to compress the first fluid and introducing the second fluid into the hydrogen storage part after the second fluid is heated or cooled in the thermal device is performed.

Abstract: A method for inferring intent and discrepancies in a label coding scheme is described. The method includes compiling data indicating how one or more individuals labeled unstructured content according to the label coding scheme comprising a plurality of labels. The method also includes analyzing a context associated with a content labeled in a particular manner by the one or more individuals. The method further includes detecting discrepancies of meaning for a particular label used by the one or more individuals. The method also includes inferring a strategic thinking of the one or more individuals associated with the discrepancies of meaning detected for the particular label. The method further includes displaying recorded metadata associated with the strategic thinking and the discrepancies of meaning detected for the particular label between the one or more individuals regarding a coded dataset.

Abstract: A display device has a base layer, including light-emitting regions of first to third colors, respectively, at least one light-receiving region, and a non-light-emitting region surrounding the light-emitting regions and the at least one light-receiving region; a display element layer disposed on the base layer, including first to third light-emitting elements each corresponding to the light-emitting regions of the first to third colors, respectively, and a light-receiving element corresponding to the at least one light-receiving region; and a color filter layer disposed on the display element layer and including first to third color filters, first regions each having one color filter corresponding to a respective one of the first to third color filters disposed therein and each overlapping a respective one of the first to third color light-emitting regions, and a second region in which two different color filters of the first to third color filters are stacked.

Abstract: A display device including: a substrate; first to third light emitting portions on the substrate; a light sensing portion on the substrate and configured to sense an incident light, a light blocking layer having a light blocking opening that overlaps the light sensing portion; a first color filter on the first light emitting portion, and configured to transmit the first light, and block the second light and the third light; a second color filter on the second light emitting portion, overlapping the light blocking opening, and configured to transmit the second light, and block the first light and the third light; a third color filter on the third light emitting portion, and configured to transmit the third light, and block the first light and the second light; and a first light blocking pattern on the second color filter and overlapping a portion of the light blocking opening.

Abstract: A liquefied gas storage tank includes a corner block disposed on a corner portion, wherein the corner block includes a lower block, an upper block and an upper connecting block, the upper block includes a first inner fixing unit and a second inner fixing unit respectively provided inside a first surface and a second surface, bonded and connected to a secondary barrier, and each having a structure in which a primary inner plywood, a primary corner insulating material, and a primary outer plywood are stacked, and an inner bent portion installed at a corner spatial portion between the first inner fixing unit and the second inner fixing unit, and both side surfaces of the inner bent portion that are perpendicular to the secondary barrier each have a height reduced from a total height of each of the first and second inner fixing units.

Abstract: A method for measuring blood sugar that is performed by an apparatus for measuring blood is provided. The method includes calculating color data from multiple skin regions of interest in a skin image, classifying a user's meal state into a pre-meal state or a post-meal state through analysis of acquired user information, estimating blood sugar by applying the calculated color data to a blood sugar regression linear equation corresponding to the classified user's meal state, and measuring robust blood sugar by weighted averaging the estimated blood sugar.

Abstract: A selector according to an embodiment of the present disclosure includes a first electrode; a second electrode disposed opposite to the first electrode; an ion supply layer disposed between the first electrode and the second electrode to be on the side of the first electrode and doped with a metal, wherein the doped metal diffuses toward the second electrode; a switching layer disposed between the first electrode and the second electrode to be on the side of the second electrode, wherein the doped metal diffuses from the ion supply layer into the switching layer so that metal concentration distribution inside the switching layer is changed to generate metal filaments; and a diffusion control layer inserted between the ion supply layer and the switching layer, wherein the diffusion control layer serves to adjust electrical characteristics related to the generated metal filaments as the amount of the diffusing metal is adjusted in proportion to a thickness of the diffusion control layer.

Abstract: The present invention relates to a support pole assembly for mounting an antenna and, particularly, to a support pole assembly for mounting an antenna, comprising: a support pole which is formed in a hollow structure and has an antenna device mounting hole formed at the circumferential surface thereof; an antenna device which is mounted to the support pole while passing through and covering the antenna device mounting hole and the rear portion of which is placed in the inner space of the support pole. Accordingly, the present invention provides an advantage in that the protrusion amount of the antenna device with respect to the support pole is reduced and thus the space required for mounting the antenna device can be reduced.

Abstract: A surface plasmon resonance imaging apparatus is provided. The surface plasmon resonance imaging apparatus includes a light irradiation unit configured to irradiate polarized light onto a metal coating film provided on one surface of a prism, a light modulator configured to spatially pattern-encode light reflected by the metal coating film and the prism, a light detector configured to detect a pattern-encoded light signal, obtained through pattern-encoding by the light modulator, as a spectral signal, a signal processor configured to spatially decode the spectral signal and analyze a decoded spectral signal to generate characteristic data of a sample provided on the metal coating film, and an output unit configured to output the characteristic data of the sample as a two-dimensional (2D) image.

Abstract: A hinge device of a portable terminal with a foldable structure according to the present invention includes: housing positioned between one end of a first body and one end of a second body; first hinge blade and second hinge blade fixed to the first body and the second body, respectively, and supported against the housing to rotate at a predetermined angle between an ‘unfolded position’ in which the first body and the second body are placed on the same horizontal line and a ‘folded position’ in which the first body and the second body face each other and thus come into contact with each other; and first interlocking gear and second interlocking gear for interlocking the first hinge blade and the second hinge blade with each other so that the first hinge blade and the second hinge blade move relative to each other, wherein the first interlocking gear and the second interlocking gear are mounted on the corresponding housing in such a way as to rotate relative to each other by a predetermined angle around gear s

Abstract: Provided is a holographic optical element printing method using a tunable focus lens and a rotating mirror. According to an embodiment, a holographic printer includes: a first optical engine and a second optical engine configured to adjust a phase of an incident collimated beam and emit the collimated beam; and a first reduction optical system and a second reduction optical system configured to reduce the beam emitted from the first optical engine and the second optical engine and to allow the beam to enter a holographic material, wherein each of the first optical engine and the second optical engine includes: a rotating mirror configured to reflect while adjusting the phase of the incident collimated beam through rotation; and a tunable focus lens configured to refract while adjusting the phase of the incident collimated beam reflected from the rotating mirror through focus tuning.

Abstract: A hydrogen storage system is disclosed and includes a storage unit including a plurality of unit storage containers, in which metal hydride materials are respectively provided in an interior thereof and which are connected to each other in parallel, and a thermal fluid line defining a thermal fluid passage, which passes via the plurality of unit storage containers continuously and through which a thermal fluid flows for heating or cooling the unit storage containers, thereby enhancing a storage performance and an efficiency of the hydrogen.

Abstract: Provided is a cognitive experiment method for change in periphery region image quality for parameter determination of a foveated hologram. According to an embodiment, a cognitive experiment method for determining foveated image parameters includes: generating a foveated image which includes a foveal region and a periphery region while reducing image quality regarding the periphery region; displaying the generated foveated image; receiving an input of a response to image quality of the periphery region from a subject; and collecting information regarding appropriate image quality of the periphery region, based on the response inputted by the subject. Accordingly, in applying a foveated hologram generation algorithm for real-time reproduction, various parameters such as a boundary between a foveal region image and a periphery region image in a foveated hologram, and a degree of quality degradation of the periphery region image may be appropriately determined through a cognitive experiment.

Abstract: A hydrogen storage device includes a storage container having an accommodation space in an interior thereof, a first metal hydride material provided in the interior of the storage container and that stores hydrogen, and a second metal hydride material provided in the interior of the storage container and that stores the hydrogen at a pressure that is different from that of the first metal hydride material. An advantageous effect of restraining an excessive rise of a pressure of the storage container and enhancing safety and reliability may be obtained.

Abstract: A semiconductor device can include a field insulation layer including a planar major surface extending in first and second orthogonal directions and a protruding portion that protrudes a particular distance from the major surface relative to the first and second orthogonal directions. First and second multi-channel active fins can extend on the field insulation layer, and can be separated from one another by the protruding portion. A conductive layer can extend from an uppermost surface of the protruding portion to cross over the protruding portion between the first and second multi-channel active fins.

Abstract: Provided is a hologram image normalization method for a holographic printer. In a holographic printing method according to an embodiment, generating, encoding, and normalizing for the (n+1)-th hogel are performed in parallel with loading and recording of a normalized hologram for the n-th hogel, and moving and waiting for the (n+1)-th hogel. Accordingly, a global maximum value and a global minimum value for normalization may be calculated as approximate estimation values, and a hologram generation process and a printing process may be performed in parallel, so that a total printing time may be minimized and memory usage may be optimized when holographic printing is performed.

Abstract: A window member includes a main part including a first side extending in a first direction, a second side extending in a second direction, and a first corner side connecting the first and second sides. The window member further includes a first side part in contact with the first side, a second side part in contact with the second side, and a first corner part connecting the first and second side parts. The first corner part includes a first upper corner part, a first middle corner part, and a first lower corner part. A lower surface of the first middle corner part has a first radius of curvature, a lower surface of the first lower corner part has a second radius of curvature, and the first radius of curvature is greater than the second radius of curvature.