Abstract: A method for atomic layer etching may include a step of providing a substrate on which a material to be etched is formed, a modifying step of controlling the substrate at a first temperature and modifying a surface layer of the material to be removed by supplying a modifying gas to the substrate, and an etching step of controlling the substrate at a second temperature different from the first temperature and removing the modified surface layer by supplying an etching gas to the substrate.

Abstract: A memory device includes a first data strobe pad; a strobe signal generation circuit suitable for generating a read data strobe signal based on a read timing signal; a monitoring receiver suitable for receiving the read data strobe signal fed back through the first data strobe pad according to a monitoring enable signal; a sampler suitable for generating a sampling clock by sampling the fed back read data strobe signal according to a random clock; a first counter suitable for generating a first counting signal by counting the random clock; a second counter suitable for generating a second counting signal by counting the sampling clock; and a duty detector suitable for generating a duty ratio detection signal based on the first counting signal and the second counting signal.

Abstract: The present invention relates to a composition for preventing hearing loss, containing mesenchymal stem cells (MSC) or exosomes derived therefrom as an active ingredient. Specifically, an effect of preventing damage to the inner hair cells and outer hair cells of the cochlea caused by ototoxic drugs is exerted since a large amount of HSP70 protein is contained in exosomes contained in an MSC culture solution obtained according to the present invention, MSCs co-cultured with cochlear explants according to the present invention, and exosomes contained in a co-culture solution of MSCs and cochlear explants, and thus the MSCs co-cultured with cochlear explants, culture solution, and exosomes isolated therefrom can be usefully utilized as an active ingredient of a composition for preventing hearing loss.

Abstract: One embodiment of the present invention provides a method for manufacturing a light-transmissive film, a light-transmissive film manufactured by the manufacturing method, and a display device comprising the light-transmissive film, the method comprising the steps of: preparing a light-transmissive resin powder; preparing a light-transmissive resin solution by dissolving a first amount of the light-transmissive resin powder in a first solvent; preparing a filler dispersion solution by dispersing a filler in a second solvent; preparing a first mixture solution by mixing the filler dispersion solution and the light-transmissive resin solution; and preparing a second mixture solution by adding a second amount of the light-transmissive resin powder to the first mixture solution and dissolving same.

Abstract: A user equipment (UE) receives a timing advance medium access control (MAC) control element. The UE applies a timing advance command of the timing advance MAC control element and to start or restart a time alignment timer. The UE releases physical uplink control channel (PUCCH) resources and releases any assignment sounding reference signal (SRS) resources, when the time alignment timer expires. The UE flushes hybrid automatic request (HARQ) buffers, when the time alignment timer expires or is stopped.

Abstract: An operation method of a terminal in a communication system may include: receiving, from a base station, a first reference signal through a use channel; generating subchannel state information for each of a plurality of subchannels of the use channel based on the first reference signal; compressing the subchannel state information using a first neural network encoder; forming a subchannel group including at least one subchannel; generating subchannel group state information from the compressed subchannel state information of the at least one subchannel belonging to the subchannel group by using a second neural network encoder; and transmitting the subchannel group state information to the base station.

Abstract: The present invention relates to an animal model for age-related hearing loss (ARHL) and a method for preparing the same, particularly to a method for preparing an animal model for hearing loss, which comprises feeding a high fat diet to an animal and injecting galactose to the animal in intermittent hypoxia to age and damage the auditory organ in a short period of time, and an animal model prepared by the preparation method.

Abstract: The present invention relates to a method for supporting reading of a fundus image of a subject, and a computing device using the same. Specifically, the computing device according to the present invention acquires the fundus image of the subject, extracts attribute information from the fundus image on the basis of a machine learning model for extracting the attribute information of the fundus image, and provides the extracted attribute information to an external entity. In addition, when evaluation information on the extracted attribute information or modification information on the attribute information is acquired, the computing device according to the present invention can also update the machine learning model on the basis of the acquired evaluation information or modification information.

Abstract: An example system includes an electronic device and a server. The electronic device includes a display; a first communicator; and a first controller configured to: control to transmit, to the server, location data identifying locations of the electronic device. The server includes a second communicator; and a second controller configured to: control to receive the location data; identify a course of travel; link photograph images to locations on the course of travel; and control to transmit to the electronic device the course of travel and the photograph images. The first controller of the electronic device is configured to control to receive the course of travel and the photograph images and to control to display on the display, at the same time, a map image, the course of travel, and one or more of the photograph images linked to a selected location on the course of travel.

Abstract: An electronic hydraulic brake device includes a main braking unit configured to provide a braking fluid to a plurality of wheel cylinder units by driving of a motor; a storage unit connected to the main braking unit and configured to store the braking fluid; and an auxiliary braking unit connected to the main braking unit and the storage unit and configured to provide the braking fluid to some of the plurality of wheel cylinder units when an operation error of the main braking unit occurs, so that braking of a vehicle may be stably performed by the auxiliary braking unit even though the operation error of the main braking unit occurs.

Abstract: Disclosed is a speed reduction device for a vehicle motor. The speed reduction device includes an output gear connected to an output shaft of the motor, a transmission gear engaged with the output gear, a cam formed to be integrated with the transmission gear, a cycloid inner gear, a pair of wedges compressed against the inner peripheral surface of a through hole of the cycloid inner gear by elastic restoring force of a spring and configured to closely contact the cam, a ring gear partially engaged with the cycloid inner gear when the cycloid inner gear is eccentrically rotated, an end plate, and a final output gear configured to finally output rotational force of the cycloid inner gear, thereby preventing backlash between gears during rotational driving of the motor and reliably preventing movement of a seat after swivel adjustment is completed.

Abstract: An image sensor may include a first photo-sensing device on a semiconductor substrate and configured to sense light of a first wavelength spectrum, and second and third photo-sensing devices integrated in the semiconductor substrate and configured to sense light of a second and third wavelength spectrum, respectively. The first photo-sensing device may overlap each of the second and third photo-sensing devices in a thickness direction of the semiconductor substrate. The second and third photo-sensing devices do not overlap in the thickness direction and each have an upper surface, a lower surface, and a doped region therebetween. The third photo-sensing device includes an upper surface deeper further from the upper surface of the semiconductor substrate than the upper surface of the second photo-sensing device and a doped region thicker than the doped region of the second photo-sensing device. The image sensor may omit the first photo-sensing device.

Abstract: Disclosed is a water purifier. A water purifier according to one example of the present invention includes: a filter unit including a reverse osmosis filter; a water outlet unit including a water outlet member connected to the filter; and a control unit for discharging water filtered by the filter unit to the outside through the water outlet member, wherein the reverse osmosis filter is provided with a reverse osmosis film that divides the reverse osmosis filter into a non-filtering side and a filtering side, and the control unit causes the filtering side to be flushed before the water filtered by the filter unit is discharged through the water outlet member, and can cause the non-filtering side to be flushed after the water filtered by the filter unit is discharged through the water outlet member.

Abstract: An antenna device according to an embodiments of the present invention includes a substrate layer, a ground layer disposed on a bottom surface of the substrate layer, a radiation control layer disposed on a top surface of the substrate layer, the radiation control layer including a plurality of radiation control patterns formed of a conductive mesh structure, each of the radiation control patterns having a hollow portion, an antenna dielectric layer disposed on the radiation control layer, and an antenna unit disposed on the antenna dielectric layer.

Abstract: An antenna structure according to an embodiment includes a radiator including a plurality of radiating portions integrally connected to each other, the plurality of radiating portions having sequentially reducing widths, a transmission line electrically connected to the radiator, and a pair of ground patterns facing each other with the transmission line interposed therebetween to be physically spaced apart from the radiator and the transmission line. A broadband antenna structure capable of providing a multi-band radiation can be implemented.

Abstract: An autocorrelator and a pulse amplifying device including the same are provided. The autocorrelator includes a parabolic mirror configured to transmit and reflect pulse laser beam, a prism on one side of the parabolic mirror and configured to split the pulse laser beam, a first lower retro-reflector under the prism and provided at a first distance from the prism to reflect a portion of the pulse laser beam, a first upper retro-reflector on the prism, provided at a second distance different from the first distance from the prism, and configured to reflect another portion of the pulse laser beam to generate a first time difference between pulses of the pulse laser beam upper retro-reflector, and a first sensor under the parabolic mirror and configured to receive the pulse laser beam to detect a pulse width of the pulse laser beam.

Abstract: The present invention relates to a cathode material for a lithium-air battery and a method of manufacturing a cathode using the same. The cathode material of the present invention includes a solvent component and thus includes an electrolyte in a small amount compared to a conventional cathode material, thereby reducing the weight of a cathode manufactured using the cathode material, ultimately increasing the energy density of a lithium-air battery including the cathode.

Abstract: An anode for a secondary battery, a method for preparing the same, and a secondary battery including the anode are provided. The anode for a secondary battery includes an anode current collector and an anode mixture layer including an anode active material formed on at least one surface of the anode current collector. The anode mixture layer has a colorimetric value of 42.5 or greater, and a Z-tensor value of an internal pore of the anode mixture layer is 0.25 or greater.

Abstract: Provided is a two step instant tent including: a frame part including central frames each having one end rotatably hinged to a central hub, and leg frames detachably and selectively connected to other ends of the central frame; and a main body including a roof part having a central region connected to the central hub, and a body part in which points on an upper periphery are fixed to corner regions, and points on a lower periphery are supported by other ends of the leg frames, wherein area and height of the tent are variable to reduce a volume of the tent when stored and allow a desired size when installed, and wherein a roof part is connected and fixed to a central hub and a leg frame is separated from the tent, so as to be quickly and accurately installed without kinking of the leg frame and damages to the body.

Abstract: A water purifier includes a water purification module that filters raw water to generate purified water, and a water outlet module that receives the purified water and outputs the purified water to the outside. The water outlet module includes a housing, a purified water inlet flow path of which at least a portion is disposed inside the housing and into which the purified water is introduced, a movable part displaced between a first position in which the movable part is retracted into the housing and a second position in which the movable part is extracted to a front side of the housing, a driving part that displaces the movable part, and a water outlet part that includes a plurality of link water outlet flow paths rotatably connected to each other and is connected to the movable part to receive the purified water and discharge the purified water to an outside.