Abstract: Provided is a system for estimating oxygen saturation by using a photoplethysmography (PPG) signal sensing ring.

Abstract: A display device includes: a substrate; a transparent electrode on one surface of the substrate; a reflective electrode on the transparent electrode; a transistor on the reflective electrode; and a light emitting element between the transparent electrode and the reflective electrode. The transistor overlaps the light emitting element.

Abstract: The present disclosure relates to a 3D printer for construction for printing and forming various structures, in which agitating blades 45 capable of auto-rotation are mounted inside a nozzle 10 discharging a printing material such as concrete or mortar, to thereby enable agitation of a fluid printing material inside the nozzle 10. According to the present disclosure, agitation of the fluid printing material inside the nozzle 10 of the 3D printer for construction may be facilitated to prevent material segregation and maintain a homogeneously mixed state of materials constituting the fluid printing material.

Abstract: A predictive maintenance algorithm providing method for bus maintenance priority determination according to the present invention includes operations of (a) grouping and classifying, by a data processing unit of an operational server, a plurality of buses to be monitored according to preset classification criteria, (b) receiving, by a monitoring unit of the operational server, bus monitoring information including a plurality of types of data collected by vehicle information collection devices installed on the buses for each group classified according to the operation (a), (c) performing, by the data processing unit, refinement on the bus monitoring information, (d) inputting, by the data processing unit, the bus monitoring information refined in the operation (c) as training data for an artificial intelligence machine to build an artificial intelligence model for determining bus maintenance priorities, (e) re-receiving, by the monitoring unit, the bus monitoring information collected by the vehicle informatio

Abstract: Disclosed herein is an apparatus for testing liquefied hydrogen valve that can configure the test valve to environmental conditions of a temperature below 20K by using only low-cost helium gas without using liquefied hydrogen or liquid helium as the test fluid. This helps companies developing liquefied hydrogen valves to safely and conveniently perform valve leakage and performance tests.

Abstract: An electrolyte for a lithium secondary battery, and a lithium secondary battery including the same are disclosed herein. In some embodiments, an electrolyte for a lithium secondary battery includes a lithium salt having a molar concentration of 1.5 M to 2.0 M, an oligomer containing a unit represented by Formula 1 and having an acrylate group at an end thereof, a first additive represented by Formula 2, and an organic solvent.

Abstract: A pre-active safety seat system applied to the vehicle implements a method for improving a pre-active safety seat speed, which confirms a risk region by matching a recline angle, a slide movement position, and a cushion tilt angle, which are detected from each of a plurality of sensors of a multi-seat sensor in a risk collision situation detected by a vehicle environment sensor of an ADAS, with a seat safety map, and combines and simultaneously controls a plurality of motors of a multi-seat motor configured for a seat target posture of a seat for converting the risk region into a safety region, by a controller, shortening a pre-active safety seat (PSS) required time of a seat target posture in the pre-active safety seat (PSS) operable section before collision of the vehicle from a risk detection.

Abstract: A non-aqueous electrolyte and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte includes an organic solvent, a lithium salt, and an additive, wherein the additive includes a compound represented by Formula I and a compound represented by Formula II wherein, in Formula I, R1 is an alkylene group having 1 to 4 carbon atoms, and wherein, in Formula II, R2, R3, and R4 are each independently a fluorine atom or a fluorine-substituted alkyl group having 1 to 10 carbon atoms.

Abstract: A non-aqueous electrolyte including an additive represented by Formula 1 is described: wherein in Formula 1, R may be any one selected from the group consisting of an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an alkynyl group having 2 to 10 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, and a cycloalkenyl group having 3 to 12 carbon atoms, R1 and R2 may each independently be any one selected from the group consisting of hydrogen (H), an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an alkynyl group having 2 to 10 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, and a cycloalkenyl group having 3 to 12 carbon atoms, and A may be an alkylene group having 1 to 5 carbon atoms.

Abstract: An electronic device comprises a speaker; a wireless communication interface configured to communicate with an external device, wirelessly; and a controller configured to transmit a sound source to the speaker, transmit the sound source to the external device through the wireless communication interface, obtain a first audio corresponding to the sound source output through the speaker and a second audio corresponding to the sound source output through the external device, and control an EQ (Equalizer) mode of the external device based on a comparison result between the first audio and the second audio, or output a calibrated sound source to the speaker.

Abstract: The present disclosure relates to a 3D printer for construction for printing and forming various structures, in which agitating blades 45 capable of auto-rotation are mounted inside a nozzle 10 discharging a printing material such as concrete or mortar, to thereby enable agitation of a fluid printing material inside the nozzle 10. According to the present disclosure, agitation of the fluid printing material inside the nozzle 10 of the 3D printer for construction may be facilitated to prevent material segregation and maintain a homogeneously mixed state of materials constituting the fluid printing material.

Abstract: A display device includes a display unit including pixels. A sensor unit overlaps with the display unit and includes sensors. A sensor driver transmits a driving signal to the sensors, and receives sensing signals corresponding to the driving signal from the sensors. One sensing period includes a first sensing period and a second sensing period. The sensor driver transmits a first driving signal having a first frequency to the sensors in the first sensing period, and transmits a second driving signal having a second frequency different from the first frequency to the sensors in the second sensing period.

Abstract: A display device, includes: a substrate including a plurality of pixel areas each having an emission area; and a pixel provided in each of the pixel areas, wherein the pixel comprises: at least one light emitting element on a first surface of the substrate; a first insulating layer on the light emitting element; at least one transistor on the first insulating layer and electrically connected to the light emitting element; a second insulating layer on the transistor; a common electrode on the second insulating layer; and a pixel electrode on a third insulating layer of the common electrode and electrically connected to the transistor, wherein the light emitting element comprises a semiconductor structure on the substrate, and first and second electrodes on the semiconductor structure to be spaced apart from each other.

Abstract: An embodiment mounting and demounting device for a wireless electronic device includes a pair of holder wings arranged symmetrically to each other and configured to press both sides of the wireless electronic device, a holder wing adjusting device configured to apply a force to adjust a gap between the holder wings using a driving force of a drive motor, a lifting implementing device configured to interlock with the holder wing adjusting device to lift the wireless electronic device upward in a case in which the holder wings are spread apart by a predetermined reference gap or more, a lower housing wrapped around a lower side of the holder wings, the holder wing adjusting device, and the lifting implementing device, and an upper housing coupled to an upper side of the lower housing and configured to allow the wireless electronic device to pass through in an up and down direction.

Abstract: The present invention provides method and apparatus for purifying exhaust gas of a vessel and a vessel including the same, in which a risk for a vessel and crew of being exposed to ammonia gas used to collect carbon dioxide included in exhaust gas emitted from a vessel may be minimized and an ammonia solution may be recycled and reused to collect carbon dioxide, in order to satisfy regulations on discharge of exhaust gas by the IMO. Also, the present invention provides an apparatus 1000 for purifying exhaust gas of a vessel and a method of purifying exhaust gas of a vessel using the same, in which carbon dioxide and sulfur dioxide included in exhaust gas emitted from a vessel may be collected by using a reaction solution and may be changed into a substance that does not affect the environment so as to be stored and transported to land.

Abstract: A display device and a method of manufacturing the display device are proposed. The method may include disposing light emitting elements on a first transfer film; stretching the first transfer film so that the plurality of light emitting elements are spaced apart from each other; transferring the light emitting elements onto a thin film transistor array substrate; and removing the transfer film from the light emitting elements.

Abstract: A novel compound for a light emitting device, and an organic light emitting device containing the same are disclosed.

Abstract: A non-aqueous electrolyte including an additive represented by Formula 1 is described: wherein in Formula 1, R may be any one selected from the group consisting of an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an alkynyl group having 2 to 10 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, and a cycloalkenyl group having 3 to 12 carbon atoms, R1 and R2 may each independently be any one selected from the group consisting of hydrogen (H), an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an alkynyl group having 2 to 10 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, and a cycloalkenyl group having 3 to 12 carbon atoms, and A may be an alkylene group having 1 to 5 carbon atoms.

Abstract: An electrolyte for a lithium secondary battery and a lithium second battery including the same are disclosed herein. In some embodiments, an electrolyte includes an additive containing a compound represented by Formula 1, an oligomer containing a unit represented by Formula 2 and having an acrylate group at an end thereof, a lithium salt, and an organic solvent.

Abstract: The present invention relates to a non-coating thermoplastic resin composition, a method for manufacturing a molded article by using the same, and a molded article manufactured by the same. More specifically, the present invention is characterized by providing the thermoplastic resin composition which contains polycarbonate, polysiloxane-polycarbonate copolymer, polyester, master-batched carbon black, and additives in specific contents and the molded article, which has excellent chemical resistance, mechanical properties, light resistance, hydrolysis resistance, and low glossiness, manufactured by using the same.