Abstract: An optical imaging system includes a reflective member having a reflective surface for changing an optical path of light, a first lens having positive refractive power, a second lens having negative refractive power, a third lens, a fourth lens, and a fifth lens. The first lens to the fifth lens are sequentially disposed along an optical axis from an object side and are each disposed closer to an image sensor than the reflective member. The optical imaging system satisfies 0.2 mm<C1.0<0.3 mm, where C1.0 is a distance by which the image sensor moves in a direction perpendicular to the optical axis with respect to a shake amount of 1.0° measured by a shake detection unit.

Abstract: A battery sub-packing unit includes a plurality of secondary battery cells, a cell support member including a seating portion for accommodating the plurality of secondary battery cells, and a venting inducing portion connecting the seating portion to an external area, and a case member provided to surround the secondary battery cell accommodated in the seating portion and to seal around the secondary battery cell.

Abstract: An embodiment roof assembly for a vehicle includes a roof panel including a core, an upper skin attached to a top surface of the core, and a lower skin attached to a bottom surface of the core, a face sheet disposed above the roof panel, and a foam layer interposed between the roof panel and the face sheet.

Abstract: A bulk-acoustic wave (BAW) resonator includes a central portion in which a first electrode, a piezoelectric layer, and a second electrode are sequentially stacked on a substrate, and an extension portion extending externally from the central portion, and an insertion layer and a loss prevention film are disposed in the extension portion between the substrate and the second electrode. The loss prevention film is formed to have a thickness of 50 ? to 500 ?. The insertion layer is stacked on the loss prevention film, and has a side surface opposing the central portion, the side surface is formed as a first inclined surface having a first inclination angle. The loss prevention film has a side surface opposing the central portion, the side surface is formed as a second inclined surface having a second inclination angle. The second inclination angle is formed to be greater than the first inclination angle.

Abstract: An organic light emitting diode display according to an exemplary embodiment includes: a substrate; a first buffer layer on the substrate; a first semiconductor layer on the first buffer layer; a first gate insulating layer on the first semiconductor layer; a first gate electrode and a blocking layer on the first gate insulating layer; a second buffer layer on the first gate electrode; a second semiconductor layer on the second buffer layer; a second gate insulating layer on the second semiconductor layer; and a second gate electrode on the second gate insulating layer.

Abstract: An atomic layer etching method using a ligand exchange reaction may include a substrate providing step of putting a substrate with a thin film formed thereon into a reaction chamber, a halogenated thin film forming step of forming a halogenated thin film on a surface of the thin film by infusing a halogenated gas into the reaction chamber, and an etching step of etching the halogenated thin film by infusing a ligand without a metal or metal precursor into the reaction chamber with the substrate with the halogenated thin film.

Abstract: Proposed is an all-solid-state battery including a self-standing sheet layer positioned on a negative electrode current collector. The all-solid-state battery may include the negative electrode current collector, the self-standing sheet layer positioned on the negative electrode current collector, a solid electrolyte layer positioned on the sheet layer, a positive electrode active material layer positioned on the solid electrolyte layer, and a positive electrode current collector positioned on the positive electrode active material layer. The sheet layer contains carbon nanotubes.

Abstract: A battery fire detection device according to an embodiment includes: a first sensor configured to detect whether a gas vent of a battery cell is opened; a second sensor configured to detect a temperature of the battery cell; and a controller configured to determine whether there is a risk of fire or whether a fire occurs in the battery cell based on detection results of the first sensor and the second sensor.

Abstract: An apparatus and method for manufacturing iron-based mixed powder with excellent flowability is provided. The apparatus includes a hopper which stores and discharges a main raw material of iron-based powder, a transport means which transports the main raw material of iron-based powder discharged from the hopper, a magnetizing means that applies magnetic force to the main raw material transported and falling from the transport means to process the main raw material of iron-based powder into a main raw material bundle in a crumbly type in which the main raw material of iron-based powder is agglomerated with each other, a first mixer in which the main raw material bundle in a magnetized state and an auxiliary raw material of iron-based powder are loaded and mixed while being rotated and transported, and a second mixer in which a first iron-based mixed powder is mixed while being rotated and transported.

Abstract: A display apparatus including a display and a supporter. The supporter being mounted on the display and configured to support the display and rotate the display module between a first position and a second position. The supporter including a drive motor, a first gear, and a detection sensor. The drive motor configured to supply a driving force to rotate the display. The first gear configured to rotate together with the display by receiving the driving force from the drive motor. The detection sensor configured to detect a rotation amount of a second gear configured to rotate in with the first gear.

Abstract: An optical imaging system includes: a first lens group including a plurality of lenses; a second lens group including a plurality of lenses; a first reflecting member disposed on an object side of the first lens group; and a plurality of second reflecting members arranged between the second lens group and an image sensor. One or both of the first lens group and the second lens group is movable along an optical axis, an interval along the optical axis between the first lens group and the second lens group is varied between a first interval and a second interval smaller than the first interval, and as at least one of the first lens group and the second lens group is moved, one or more of the second reflecting members are moved.

Abstract: Provided is a cluster node recommendation system. A method of controlling the cluster node recommendation system includes: inputting user selection information from a user, the user selection information including at least one of a cloud vendor, an Information Technology (IT) resource size, and a free resource size; checking resource requirements of a designated application; outputting a node configuration by inputting the input user selection information and the checked resource requirements of the application to an artificial intelligence module; verifying validity by arranging a container in which the application is executed, in the output node configuration; and providing a final node configuration in which validity verification is made, to the user.

Abstract: An apparatus and a method for generating a sound of an electric vehicle are provided. The apparatus determines whether a current condition may be a regenerative braking condition, generates a regenerative braking sound based on an amount of change in motor torque in the regenerative braking condition, and outputs the generated regenerative braking sound.

Abstract: Proposed are a method of manufacturing a sapphire cover window, which includes: preparing a sapphire wafer; forming a cell edge processing portion on the sapphire wafer with a laser beam; forming an etched portion on the sapphire wafer by selectively performing wet etching on the cell edge processing portion; and separating a cell from the sapphire wafer by compressing the sapphire wafer on which the etched portion are formed, and a sapphire cover window manufactured thereby.

Abstract: According to various embodiments of the present invention, disclosed is an electronic device comprising: a first antenna element configured so as to transmit and receive a signal of a first frequency band or a second frequency band; a second antenna element configured so as to transmit and receive the signal of the first frequency band or the second frequency band; a first RF block electrically connected to the first antenna element and the second antenna element and including a first transmission and reception circuit and a second transmission and reception circuit; an RF reception circuit for receiving the signal of the first frequency band or the second frequency band from the first antenna element or the second antenna element; and a transceiver, wherein the first transmission and reception circuit processes the signal of the first frequency band or the second frequency band, the second transmission and reception circuit processes the signal of the first frequency band or the second frequency band, and th

Abstract: A water shortage detection system comprises: a body; a drive unit which is provided in the body to supply power for traveling of a robot cleaner; a plurality of rotary members which rotate about a plurality of respective rotation axes by the power from the drive unit and to which cleaners for wet cleaning of a surface to be cleaned can be fixed respectively; a water tank which is provided in the body to store water; a pump motor which supplies water stored in the water tank to the rotary members; and a control unit which measures the load current of the pump motor, wherein a water shortage state in the water tank is detected on the basis of the measured value of the load current of the pump motor.

Abstract: A battery diagnosis device for a battery including a parallel connection structure of unit cells includes a processor and memory having programmed thereon instructions that, when executed, are configured to cause the processor to collect charge/discharge data including a voltage time series indicating a time-dependent change of a voltage across the battery and a current time series indicating a time-dependent change of a charge/discharge current flowing through the battery; determine an estimated capacity value indicating a full charge capacity of the battery based on the charge/discharge data; and diagnose an abnormality in the parallel connection structure by monitoring a time-dependent change of the estimated capacity value.

Abstract: The present disclosure in at least one embodiment provides a wireless communication device, comprising a lower case, an upper radome, coupled to the lower case, creating a storage space between the lower case and the upper radome, an antenna disposed in the storage space, and a plurality of internal substrates, disposed between the antenna and the lower case in the storage space, of which one of the plurality of internal substrates is connected to the antenna, wherein each internal substrate of the plurality of internal substrates is disposed along a first direction parallel to a surface of the lower case facing the plurality of internal substrates.

Abstract: The present disclosure relates to a vehicle rear seat including: a center seat; and side seats located on the left and right of the center seat, wherein, the center seat is capable of protruding by moving the center seat forward with respect to the side seats, and in the state in which the center seat protrudes forward, it is possible to increase an inter-passenger distance so that physical contact between the passenger of the center seat and the passenger of each of the side seats can be prevented as much as possible.

Abstract: A semiconductor device includes channels spaced apart from each other on a substrate in a vertical direction substantially perpendicular to an upper surface of the substrate, a gate structure on the substrate and bordering lower and upper surfaces and a first sidewall of at least a portion of each of the channels, and a source/drain layer on a portion of the substrate adjacent to the gate structure and contacting second sidewalls of the channels. A nitrogen-containing portion is formed at an upper portion of an uppermost one of the channels, and may be doped with nitrogen.