Abstract: The present disclosure relates to an air vent structure and, more specifically, to a slim air vent structure provided in a vehicle interior and using a Coanda effect. The air vent structure includes a collection plate disposed on a first side in a passage through which air flows. An inclined surface is disposed on a second side that is opposite to the first side, and the inclined surface has an inclination. A projection is configured to be retractable from the inclined surface. A volume of the projection, protruding from the inclined surface, is adjustable.

Abstract: Disclosed are quantum dots including a luminescent dopant. More particularly, each of the quantum dots according to an embodiment of the present invention includes a core and a shell surrounding the core, wherein at least one of an interior of the core and an interface between the core and the shell is doped with a luminescent group I dopant.

Abstract: Provided is a portable IPL sterilizer comprising: a body partitioned into a central region and a peripheral region surrounding at least a portion of the central region; a xenon lamp light source for sterilization provided in the central region of the body; and a light-shielding comb part provided in the peripheral region of the body.

Abstract: The present disclosure relates to a method and a device for providing a V2X service in a next generation radio access technology (new RAT). The present embodiments relate to a method for a terminal to control a sidelink HARQ feedback operation, the method comprising the steps of: receiving, from a transmitting terminal, group cast sidelink data through a physical sidelink shared channel (PSSCH); determining, on the basis of positional information of the transmitting terminal, whether to transmit HARQ feedback information of the group cast sidelink data; and, when it is determined to transmit the HARQ feedback information, transmitting the HARQ feedback information.

Abstract: A motor driven power steering system includes: a power source for generating a steering assistance force assisting the steering of a vehicle; a transfer gear positioned between a power source and a column for transferring the steering assistance force generated by the power source to the column; a parameter estimation unit for estimating a friction parameter of a dynamic friction model based on the actual friction torque actually generated in the transfer gear; and a state estimation unit for calculating a state variable of the dynamic friction model based on a contact surface moving speed of the transfer gear and for estimating expected friction torque according to the dynamic friction model by using the calculated state variable and the friction parameter of the dynamic friction model estimated by the parameter estimation unit.

Abstract: There may be provided a fuel cell stack unit comprising: a first gas separating plate; a first sealing gasket; a metal support, an end cell, and an air inlet being formed in the outer peripheral side of the center portion; a second sealing gasket; and a second gas separating plate stacked on the lower side of the second sealing gasket, wherein air introduced from the air inlet of the first gas separating plate successively passes through the air inlets formed in the first sealing gasket, the metal support, and the second sealing gasket, respectively, and flows from one side of the end cell to the other side thereof along a stacking boundary between the lower side of the end cell and the upper side of the second gas separating plate; and the second sealing gasket is recessed inward from an edge of the second sealing gasket.

Abstract: The present disclosure relates to an apparatus for detecting nuclear reactor coolant leaks that is capable of maintaining radiation detection reliability and the integrity of a radiation detector from high-dose background radiation inside a nuclear reactor when a coolant leaks from the primary coolant system of the nuclear reactor. The apparatus of the present disclosure includes a shield having an internal space into which sample air containing a coolant leaking from a primary coolant system pipe of a nuclear reactor is introduced, and configured to close the exposed internal space or expand the internal space through detachable coupling; a first sensor disposed in the internal space to obtain a radiation measurement signal from the sample air; and a discriminator for determining whether a coolant is leaking based on the radiation measurement signal. This work was supported by Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government (MOTIE) (No.

Abstract: Provided is a color transformation filter including a plurality of nanostructures included in a subpixel and spaced apart from each other, the plurality of nanostructures having a first refractive index, a low refractive index layer provided adjacent to the plurality of nanostructures, the low refractive index layer having a second refractive index less than the first refractive index, and a color transformation element included in the low refractive index layer.

Abstract: A magnetic tunnel junction device and an operating method thereof are disclosed. The magnetization switching of a free layer may be induced through spin orbit torque or spin transfer torque, and a magnetization direction of a pinned layer may be easily set according to the intention of a designer through ferromagnetic coupling and antiferromagnetic coupling.

Abstract: Disclosed are a self-healing memory device including a lower electrode; a polymer nanocomposite layer formed on the lower electrode, wherein, when a structural defect occurs, the polymer nanocomposite layer repairs the structural defect and restores a memory function damaged due to the structural defect through a self-healing mechanism characterized by movement of a polymer material and hydrogen bonding; and an upper electrode formed on the polymer nanocomposite layer and a method of manufacturing the self-healing memory device.

Abstract: Disclosed are an electronic voting system based on homogeneous cryptography and a method thereof. An electronic voting method includes the steps of: (a) generating a serial number sn by using election identification information eid and a his/her secret key, wherein the election identification information eid is shared through a block chain; (b) encrypting a voting message M through verifiable homogeneous cryptography to generate a ciphertext CT, and generating a zero-knowledge proof key ? for the voting message; and (c) transmitting an electronic ballot including the serial number sn, the ciphertext CT, and the zero-knowledge proof key ? to a block chain network as a transaction.

Abstract: Disclosed is an activation device. The activation device, which serves as a device coming into contact with an object to activate surrounding materials according to a dielectric barrier discharge principle, includes: a dielectric having a predetermined thickness and formed with an outer surface coming into contact with the object and an inner surface facing the outer surface; and an electrode provided inside the dielectric and having an outer surface facing the inner surface of the dielectric, wherein the outer surface of the electrode includes a contact area that comes into contact with the inner surface of the dielectric, and a non-contact area that does not come into contact with the inner surface of the dielectric.

Abstract: Disclosed are a three-dimensional flash memory, which reduces leakage current and supports a hole injection erase technique, and a method for manufacturing same. According to an embodiment, the three-dimensional flash memory comprises: a substrate; a channel layer extending in one direction on the substrate and having the shape of a hollow macaroni; and a P-type filer extending in the one direction while filling the inner space of the channel layer.

Abstract: Provided is a method of forming a customized alveolar bone tissue. The method includes obtaining first data having image information corresponding to an original alveolar bone of an alveolar bone defect, obtaining second data having image information on a defective portion of the alveolar bone defect, calculating third data having image information on a barrier membrane covering the alveolar bone defect by using the first data and the second data, and forming a barrier membrane artificial tissue corresponding to the barrier membrane by using the third data.

Abstract: According to an aspect of an embodiment, a fine dust measurement module includes a fluid inlet into which fluid including fine dust with particles of various diameters is flowed, a first channel through which, of the fine dust introduced through the fluid inlet, first fine dust with particles having a diameter greater than or equal to a first diameter passes, a second channel through which, of the fine dust introduced through the fluid inlet, second fine dust with particles having a diameter less than the first diameter passes, a flow ratio control nozzle arranged in the first channel and configured to control a flow ratio between fluid flowing into the first channel and fluid flowing into the second channel, and a fine dust sensor configured to sense fine dust flowing into the second channel.

Abstract: Embodiments relate to a method and device for transmitting and receiving sidelink HARQ feedback information. An embodiment relates to a method of receiving, by user equipment, a positioning reference signal (PRS). The user equipment receives configuration information regarding a PRS resource, which is used in reception of a PRS, from a base station, configures the PRS resource for the user equipment in accordance with the configuration information, and receives the PRS from the base station via the PRS resource.

Abstract: A catheter system is disclosed. A catheter system comprises a catheter module and a magnetic robot, which can be coupled to the catheter module, wherein: the catheter module comprises a catheter having an accommodation space formed on the front end thereof, and a rotational magnet that is rotatable; and the magnetic robot comprises a body and a magnet member, which is coupled to the body and induces magnetism with the rotational magnet.

Abstract: The invention relates to a method and a device for decoding an image by means of a partition unit comprising an additional region. The method of decoding an image by means of a partition unit comprising an additional region comprises the steps of: partitioning, by reference to a syntax element acquired from a received bit stream, an encoded image, which is included in the bitstream, in at least one partition unit; define an additional region for at least one partition unit; and decoding the encoded image based on the partition unit for which the additional region is defined. The invention improves the image coding efficiency.

Abstract: The present invention pertains to a positive electrode active material for a lithium secondary battery, the positive electrode active material having a layered structure and containing lithium, transition metals, fluorine (F), and oxygen, wherein the layered structure includes a lithium layer consisting solely of lithium and a transition metal layer consisting solely of transition metals including nickel, the nickel includes Ni3+ and Ni2+ in terms of oxidation number, and the ratio (Ni2+/Ni3+) of Ni2+ to Ni3+ increases as the fluorine content increases.

Abstract: Disclosed are a surface-modified quantum dot surface-modified with a ligand complex having a specific structure on the surface of the semiconductor nanocrystal, a method for preparing the same, and a quantum dot-polymer composite or electronic device including the same.