Abstract: A three-dimensional semiconductor device includes a first active region on a substrate, the first active region including a lower channel pattern and a lower source/drain pattern connected to the lower channel pattern, a second active region stacked on the first active region, the second active region including an upper channel pattern and an upper source/drain pattern connected to the upper channel pattern, a gate electrode on the lower channel pattern and the upper channel pattern, a lower contact electrically connected to the lower source/drain pattern, the lower contact having a bar shape extending on the lower source/drain pattern in a first direction, a first active contact coupled to the lower contact, and a second active contact coupled to the upper source/drain pattern. A first width of the lower source/drain pattern in a second direction is larger than a second width of the lower contact in the second direction.

Abstract: There is provided a semiconductor device having improved performance and reliability. A semiconductor device comprises an active pattern extending in a first direction, a gate structure including a gate electrode, a gate spacer, and a gate capping pattern on the active pattern, the gate electrode extending in a second direction different from the first direction and the gate capping pattern including a lower gate capping pattern and an upper gate capping pattern; a source/drain pattern disposed on the active pattern; and a source/drain etch stop film disposed on an upper surface of the source/drain pattern and extending along a sidewall of the gate spacer. The lower gate capping pattern is disposed on an upper surface of the gate electrode and an upper surface of the gate spacer, and the source/drain etch stop film does not extend along a sidewall of the lower gate capping pattern.

Abstract: A fuel cell system and a control method using the same. The fuel cell system includes a propeller wing of a flying object and connected to a rotor, a main radiator and a sub-radiator arranged so that heat of cooling water is dissipated by a downdraft generated by rotation of the propeller wing, and a controller to provide the cooling water to one or both of the main radiator and the sub-radiator based on an operation mode of the flying object.

Abstract: A circuit board according to an embodiment includes an insulating portion; and a pattern portion disposed on the insulating portion, wherein the insulating portion includes: a first insulating region, and a second insulating region disposed outside the first insulating region and spaced apart from the first insulating region with a separation region therebetween; wherein the pattern portion includes: a first pattern portion for signal transmission; and a second pattern portion including a dummy pattern separated from the first pattern portion, wherein the first pattern portion includes: a first terminal portion disposed on the first insulating region; a second terminal portion disposed on the second insulating region; and a connection portion disposed on the separation region and connecting between the first terminal portion and the second terminal portion, wherein the second pattern portion includes: a second-first pattern portion disposed on the first insulating region; and a second-second pattern portion d

Abstract: The present disclosure is directed to an antenna array. The antenna array includes a plurality of dielectric windows coupled to a support structure comprising a plurality of gas ports, a primary frame comprising a primary conduit connected to a power source and a plurality of secondary frames supported by the primary frame. The secondary frame includes a secondary conduit connected to the primary conduit. A plurality of inductive couplers are disposed over the plurality of dielectric windows and supported by the secondary frames. The plurality of inductive couplers include a plurality of antenna connectors and a plurality of plurality of antennas. The plurality of antenna connectors connect the plurality of antennas to the secondary conduit.

Abstract: A negative electrode active material as well as a method of preparing a negative electrode active material which includes preparing a silicon-based compound including SiOx, wherein 0.5<x<1.3; disposing a polymer layer including a polymer compound on the silicon-based compound; disposing a metal catalyst layer on the polymer layer; heat treating the silicon-based compound on which the polymer layer and the metal catalyst layer are disposed; and removing the metal catalyst layer, wherein the polymer compound includes any one selected from the group consisting of glucose, fructose, galactose, maltose, lactose, sucrose, a phenolic resin, a naphthalene resin, a polyvinyl alcohol resin, a urethane resin, polyimide, a furan resin, a cellulose resin, an epoxy resin, a polystyrene resin, a resorcinol-based resin, a phloroglucinol-based resin, a coal-derived pitch, a petroleum-derived pitch, a tar and a mixture of two or more thereof.

Abstract: A monitoring device and a vehicle having the same. The monitoring device includes a camera configured to obtain an image; a display configured to display the image; a tilting adjustor configured to adjust a tilting angle of the camera; and a controller configured to recognize a brightness of a first image displayed on the display and control the tilting adjustor to adjust the tilting angle of the camera in response to determining that the recognized brightness is greater than or equal to a reference value, and after adjusting the tilting angle of the camera, control the tilting adjustor to adjust the tilting angle of the camera to an initial tilting angle in response to determining that a brightness of a second image displayed the display is less than or equal to a release value.

Abstract: A ternary logic circuit includes: a first inverter unit; a second inverter unit arranged in parallel with the first inverter unit; a first junction unit arranged between the first inverter unit and an output terminal and including a tunnel PN junction; and a second junction unit arranged between the second inverter unit and the output terminal and including a tunnel PN junction, wherein, when an absolute value of an input voltage applied to an input terminal is less than a first input voltage, the output terminal outputs a first output voltage, and when the absolute value of the input voltage is greater than the first input voltage and less than a second input voltage, the output terminal outputs a second output voltage, and when the absolute value of the input terminal is greater than the second input voltage, the output terminal outputs a third output voltage.

Abstract: The present invention relates to a heteroaryl derivative compound and a use thereof. Since the heteroaryl derivative of the present invention exhibits excellent inhibitory activity against EGFR, the heteroaryl derivative can be usefully used as a therapeutic agent for EGFR-associated diseases.

Abstract: A method for estimating locomotion in virtual reality performed by at least one processor includes measuring a plurality of pressure points according to a user's locomotion using a high-resolution tactile sensor including a plurality of pressure sensors, extracting a plurality of footprint images including the plurality of measured pressure points, clustering the plurality of pressure points into a first set of pressure points corresponding to a left foot and a second set of pressure points corresponding to a right foot, based on the plurality of extracted footprint images, and estimating at least a portion of a locomotion direction and a locomotion speed of the user using a first cluster corresponding to the first set of pressure points and a second cluster corresponding to the second set of pressure points.

Abstract: A fuel cell system includes a fuel cell stack, a valve controlling cooling water to flow to at least one of a cooling line including the fuel cell stack and a radiator and a bypass line different from the cooling line, a heater increasing a temperature of the cooling water, an ion filter removing ions in the cooling water, and a controller determining a starting method of the fuel cell based on an outside air temperature and the temperature of the cooling water at an inlet of the fuel cell stack and determining an opening angle of the valve and an operation of the heater based on the temperature of the cooling water passing through the valve and the temperature of the cooling water passing through a connection line including the ion filter and connected to the cooling line and the bypass line when the starting method is cold start.

Abstract: It is to be understood that while the invention has been described in conjunction with the detailed description thereof, the foregoing description is intended to illustrate and not limit the scope of the invention, which is defined by the scope of the appended claims. Other aspects, advantages, and modifications are within the scope of the following claims.

Abstract: A fuel cell system includes a coolant control valve to switch a flowing path of a coolant passing through a fluid passage connected to a fuel cell stack, and a controller to control a valve opening amount of the coolant control valve while performing a start sequence previously defined, when a condition for normal start of the fuel cell stack is satisfied, and the coolant control valve is formed by integrating a first valve to switch a flowing path of a coolant flowing into a first pump with a second valve to switch a flowing path of a coolant pumped by the first pump.

Abstract: The present disclosure discloses an image/video feature descriptor extraction method and apparatus for image/video search. An image/video feature descriptor extraction method may comprise obtaining a search requested image/video from a user, performing spatio-temporal transformation on the search requested image/video, extracting a feature map from the image/video subjected to the spatio-temporal transformation, and extracting an image/video feature descriptor by applying TNIP (Temporal Nested Invariance Pooling) to the feature map.

Abstract: Described herein is a fuel cell system including a coolant control valve to switch a flowing path of a coolant through a first fluid passage passing through a fuel cell stack and a second fluid passage passing through a cathode oxygen depletion (COD) heater, and a controller to perform a shutdown sequence and control a valve opening amount of the coolant control valve connected to the first fluid passage and the second fluid passage, when shutdown is requested for the fuel cell stack. The coolant control valve is formed by integrating a first valve to switch a flowing path of the coolant flowing into a pump with a second valve to switch a flowing path of a coolant pumped by the pump.

Abstract: Disclosed is a desalination apparatus using a solvent extraction scheme.

Abstract: The present invention includes a jig for installing a protection member to a portable electronic device and a guide jig device including the same. The jig includes a main body and retaining members formed to be elastically deformed and coupled or connected to the main body while surrounding a mounting space in which the portable electronic device formed in the main body is inserted. The guide jig device is advantageous in that it can be used for a portable electronic device that is manufactured and sold in a size relatively greater than the size of the portable electronic device disclosed before its release.

Abstract: A touch screen driving circuit for driving a touch screen which includes a display layer and a touch sensor layer on the display layer is provided. The touch screen driving circuit includes: a touch controller configured to provide a plurality of drive signals respectively to a plurality of first electrodes of the touch sensor layer, in a driving period, wherein the plurality of drive signals are phase synchronized during a first sub-period of the driving period; and a display driving circuit configured to provide a compensation signal to at least some of a plurality of source lines of the display layer in the first sub-period of the driving period, wherein the plurality of compensation signals are phase synchronized opposite to the plurality of drive signals in the first sub-period.