Abstract: A refrigerant flow rate adjustment device and a system using the same include a refrigerant provided at a quantitative flow rate to a heat exchanger such that the occurrence of a liquid refrigerant is reduced at an outlet end of an evaporator. The refrigerant flow rate adjustment device and system prevent the occurrence of the liquid refrigerant at the outlet end of the heat exchanger, prevent an increase in load, and prevent a lubrication defect of a compressor.

Abstract: The present disclosure provides a battery inspection device and a battery inspection method. The battery inspection device includes: a plasma application unit irradiating plasma to a test object while being moved in a predetermined direction; a signal acquisition unit contacting the test object and electrically connected thereto, and receiving an electrical signal induced by plasma; and a control unit controlling the plasma application unit and the signal acquisition unit, wherein the control unit determines whether damage has occurred to the exterior of the test object by analyzing a waveform derived from the electrical signal received from the signal acquisition unit.

Abstract: A water purifying filter coupled to a mouth (20) of a beverage container (10) in which water or drinking water is stored, includes: a tubular housing (100) having a first screw (110) for coupling to a screw part (21) provided at the mouth of the beverage container that is formed on an inside of a lower end portion thereof and a second screw (120) for coupling a cap (30) of the beverage container that is formed on an outside of an upper end portion thereof; a first filter (200) disposed inside the housing to primarily purify the drinking water discharged from the beverage container; a second filter (300) disposed at an upper end portion of the first filter to secondarily purify the drinking water primarily purified through the first filter; and a cover unit (400) inserted into a lower end portion of the housing.

Abstract: Provided are a modifier represented by Formula 1, which is useful for modifying a conjugated diene-based polymer, has excellent affinity with a filler and improves the compounding properties of the conjugated diene-based polymer, a modified conjugated diene-based polymer comprising a functional group derived from the modifier, and a method for preparing the modified conjugated diene-based polymer, wherein all the variables are described herein.

Abstract: A semiconductor device includes a first delay circuit having a first delay amount that decreases according to a common bias, and configured to generate a first delay control signal based on the first delay amount; a second delay circuit having a second delay amount that increases according to the common bias, and configured to generate a second delay control signal based on the second delay amount; a signal generation circuit configured to generate a plurality of internal control signals in response to at least one of the first delay control signal and the second delay control signal; and an internal operation circuit configured to complementarily perform a first operation and a second operation within a target time in response to the internal control signals.

Abstract: An embodiment bumper structure includes a bracket configured to be fastened to an inner side of a bumper, a radar unit configured to be located in an opening in the bumper and fastened to the bracket, a first molding configured to surround an outer circumference of the radar unit, and a second molding configured to be assembled to the first molding and fastened to the bracket through the first molding and the radar unit.

Abstract: An embodiment roof cover for mounting an autonomous driving sensor includes a base cover portion mountable to a vehicle roof, the base cover portion being divided into a plurality of mounting regions, a first cover portion coupled to the mounting regions such that mounting positions of a radio detection and ranging (RADAR) sensor module and a first camera module are fixable to a front surface of the vehicle roof, and a second cover portion coupled to the first cover portion such that mounting positions of a light detection and ranging (LIDAR) sensor module and an antenna module are fixable to an upper surface of the vehicle roof.

Abstract: An embodiment fender cover for mounting of an autonomous driving sensor includes a first cover part fastenable to a fender for a vehicle in which a mounting area is machined and configured to guide a first sensor to be mounted in a protruded state in the mounting area, a second cover part coupled to the first cover part and configured to guide a mounting position of the first sensor, and a third cover part coupled to the second cover part and fastened to the mounting area, disposed to support the second cover part and a second sensor mounted in the mounting area, and including a mounting guide hole with a shape corresponding to a shape of the second sensor.

Abstract: A novel transition metal compound and a catalyst composition including same are disclosed herein. In some embodiments, the transition metal compound is represented by formula 1 disclosed herein. In some embodiments, the catalyst composition comprises the transition metal compound represented by formula 1. The catalyst composition may be useful for preparing an olefin-based polymer having a high molecular weight in a low density region, and may be useful for preparing an olefin-based polymer having a low melting index (MI) in high temperature conditions and a high molecular weight.

Abstract: A level shifter according to an embodiment and a display device using the same are discussed. The level shifter includes a driving signal generation circuit configured to output driving signals through signal lines, and a pseudo signal generation circuit configured to generate phase-inverted pseudo signals of the driving signals. The pseudo signal generation circuit can raise or lower a voltage level of the pseudo signals by a variation magnitude adjusted according to the driving signals whenever a section with the driving signals overlapping on a time axis occurs.

Abstract: A method of producing a sintered magnet is disclosed herein. In some embodiments, a method of producing a sintered magnet comprises, sintering a R—Fe—B based magnetic powder to produce a sintered magnet; wherein the R is Nd, Pr, Dy, Ce or Tb, and infiltrating a eutectic alloy into the sintered magnet, wherein the eutectic alloy contains Pr, Al, Cu and Ga, and wherein infiltration the eutectic alloy includes applying the eutectic alloy to the sintered magnet and heat-treating the sintered magnet to which the eutectic alloy is applied.

Abstract: Provided are a polyethylene microporous membrane, a method for manufacturing the same, and a separator including the microporous membrane. According to an embodiment of the present disclosure, a microporous membrane is provided which includes a polyethylene having a weight average molecular weight of 1×105 g/mol to 10×105 g/mol, and has a thickness of 3 ?m to 20 ?m, a puncture strength of 0.25 N/?m or more, a gas permeability of 1.5×10?5 Darcy or more, a shrinkage rate in the transverse direction of 10% or less as measured after being allowed to stand at 131° C. for 1 hour, a tensile strength in the machine direction of 1500 kg/cm2 or more, a tensile strength in the transverse direction of 2000 kg/cm2 or more, and a ratio between the tensile strength in the machine direction and the tensile strength in the transverse direction of 0.5 to 0.7.

Abstract: A circuit board according to an embodiment includes a first insulating layer; a first circuit pattern disposed on the first insulating layer; and a second insulating layer disposed on the first insulating layer and having a width narrower than that of the first insulating layer; wherein an upper surface of the first insulating layer includes a first region vertically overlapping with the second insulating layer, and a second region excluding the first region, wherein the first circuit pattern includes an extension portion extending from the first region to the second region; and wherein a width of the extension portion in the second region is greater than a width of at least a part of the extension portion in the first region.

Abstract: A sintered magnet and a method for producing the same are provided. The method includes producing an R—Fe—B-based magnet powder by a reduction-diffusion method, adding a R—Al—Cu powder as a sintering agent to the R—Fe—B-based magnet powder to form a mixed powder, wherein the R—Al—Cu powder is an alloy of R, Al and Cu, and R is Nd, Pr, Dy, Tb or Ce, and sintering the mixed powder to form a sintered magnet.

Abstract: A circuit board according to an embodiment includes an insulating layer; a first circuit pattern layer disposed on the insulating layer; a first protective layer disposed on the first circuit pattern layer and having a width narrower than of a width of the insulating layer; a second circuit pattern layer disposed under the insulating layer; and a second protective layer disposed under the second circuit pattern layer and having a width narrower than the width of the insulating layer, wherein a first surface of the insulating layer includes a first region overlapping the first protective layer in a vertical direction, and a second region excluding the first region, wherein a second surface opposite to the first surface of the insulating layer includes a third region overlapping the second protective layer in the vertical direction, and a fourth region excluding the third region, and wherein a portion of the second region overlaps a portion of the fourth region in the vertical direction.

Abstract: A flap automatically-locking active air flap apparatus for a vehicle, includes a four-link mechanism that connects a driveshaft rotated by an actuator and a rotation shaft which separated from the driveshaft and about which the flap is rotated. Force of a traveling wind of a vehicle that rotates the flap and force of an actuator that locks the flap are set to be exerted in different directions when a four-link mechanism closes the flap. Thus, auto-locking is realized in a force equilibrium state. Accordingly, the flap is prevented from being open although the traveling wind of the vehicle applies a wind pressure to the flap. With a function of automatically locking the flap, the actuator producing a same output as an actuator in the related art is used without employing a separate structure, such as a stopper.

Abstract: A light emitting diode includes a first conductivity type semiconductor layer, a mesa disposed on the first conductivity type semiconductor layer, and including an active layer and a second conductivity type semiconductor layer, and a lower insulation layer covering the mesa and at least a portion of the first conductivity type semiconductor layer exposed around the mesa, and having a first opening for allowing electrical connection to the first conductivity type semiconductor layer and a second opening for allowing electrical connection to the second conductivity type semiconductor layer. The active layer generates light having a peak wavelength of about 500 nm or less, and the lower insulation layer includes a distributed Bragg reflector.