Abstract: A unit cell for a fuel cell includes a membrane-electrode-assembly (MEA), a gas diffusion layer disposed on one surface of the MEA, a separator plate disposed to be spaced from the gas diffusion layer, and at least one coil spring interposed between the gas diffusion layer and the separator plate to elastically support the gas diffusion layer and the separator plate while electrically connecting the gas diffusion layer with the separator plate and providing a reactant gas passage to transfer reactant gas.

Abstract: A urea solution injection device includes an exhaust pipe for discharging exhaust gas generated in a combustion chamber to the exterior; an injector is installed and pierces into the exhaust pipe to inject urea solution into the exhaust gas flowing in the exhaust pipe. A catalyst is disposed at a position after the injector when viewed in a flow direction of the exhaust gas and the exhaust gas is discharged to the exterior to decompose the exhaust gas mixed with the urea solution. A urea solution mixer is provided at an end of the injector and installed and pierces into the exhaust pipe. Accordingly the urea solution injected from the injector is dispersed therein. An installation unit provides for the urea solution mixer to be installed in the exhaust pipe and pierces into the exhaust pipe.

Abstract: Disclosed herein is an X-ray imaging apparatus having an improved structure which is configured for preventing an entrance of foreign materials. The X-ray imaging apparatus includes: an X-ray source configured to generate X-rays, and to irradiate the generated X-rays; an X-ray detector configured to detect the irradiated X-rays; and a first frame and a second frame coupled with each other to form an outer appearance of the X-ray detector. The first frame is tightly coupled with the second frame so that no gap exists between the first frame and the second frame in order to prevent a foreign material from entering the inside of the X-ray detector.

Abstract: A display device with a display panel including a display area and a plurality of pixels arranged in the display area, a photosensor layer including a sensing area overlapping the display area and a plurality of photosensors arranged in the sensing area, a light-guiding layer arranged between the display panel and the photosensor layer and configured to include a plurality of light-transmission holes corresponding to the photosensors, respectively, and a light-condensing layer arranged between the display panel and the photosensor layer to overlap the light-guiding layer.

Abstract: There is provided a display device including a high-sensitivity touch sensor. A display device includes: pixels arranged in a display region; sensing electrodes arranged in a sensing region; sensing lines coupled to the respective sensing electrodes; a noise detection electrode disposed on the same layer as the sensing electrodes; sensing channels each including a first input terminal coupled to any one of the sensing electrodes and a second input terminal coupled to the noise detection electrode, the sensing channels each generating an output signal corresponding to a voltage difference between the first and second input terminals; and a processor detecting a touch input, using the output signals of the sensing channels.

Abstract: A method and an apparatus for supporting mobility in a communication system. An operation method for a mobile communication node includes: measuring channel quality between the mobile communication node and at least one adjacent communication node, on the basis of a signal received from the at least one adjacent communication node; transmitting a report message including information on the channel quality to a serving communication node connected to the mobile communication node; receiving, from the serving communication node, a response message including configuration information for a target communication node determined on the basis of the report message; and performing a connection establishment procedure with the target communication node indicated by the response message. Therefore, the performance of a communication system can be improved.

Abstract: An oscillator control circuit includes a zero-temperature coefficient (ZTC) estimator estimating a ZTC voltage based on a supply voltage supplied to the oscillator and a frequency of an oscillation signal output by the oscillator. The ZTC voltage is the magnitude of the supply voltage VDD which corresponds to the ZTC condition for the oscillator. The ZTC estimator generates a bias control signal such that the magnitude of the supply voltage becomes the ZTC voltage.

Abstract: Disclosed are a communication method and a communication apparatus using multiple antennas in a wireless communication system. A communication method of a receiver comprises receiving reference signals from a transmitter of the communication system through beams to which the hybrid beamforming is applied; selecting at least one analog beam having a quality equal to or higher than a preset threshold value among analog beams belonging to the beams, based on the reference signals; and selecting at least one digital beam corresponding to the at least one analog beam and having a quality equal to or higher than the preset threshold value among digital beams belonging to the beams, based on the reference signals. Thus, performance of the communication system can be improved.

Abstract: A display device includes: a first substrate including a display area; a thin film transistor positioned on the first substrate; a pixel electrode connected to the thin film transistor; a color filter overlapping the pixel electrode; a second substrate overlapping the first substrate; a liquid crystal layer positioned between the first substrate and the second substrate; and a stain correction layer positioned between the second substrate and the liquid crystal layer and including a semiconductor nanocrystal. The display area includes a first region and a second region excluding the first region. The stain correction layer is positioned in the first region.

Abstract: A clock jitter measurement circuit includes: an internal signal generator configured to generate a single pulse signal and an internal clock signal which are both synchronized with an input clock signal received by the clock jitter measurement circuit, a plurality of edge delay cells serially connected to each other and configured to generate a plurality of edge detection signals respectively corresponding to a plurality of delay edges obtained by delaying an edge of the internal clock signal, a plurality of latch circuits configured to latch the single pulse signal in synchronization with the plurality of edge detection signals and output a plurality of sample signals, and a count sub-circuit configured to count a number of activated sample signals of the plurality of sample signals and output a count value based on the counted number of activated sample signals.

Abstract: In an embodiment, a touch sensor may include a sensor part including a first electrode and a second electrode, a signal receiving part, an amplifier circuit part connected between the second electrode and the signal receiving part, an analog-to-digital converter part configured to output a digital signal corresponding to a voltage difference between input terminals, and a processor configured to detect a touch input from the sensor part in response to the digital signal when operating in a first mode, and to output a gain control signal for calibrating a gain value of the amplifier circuit part in response to the digital signal when operating in a second mode.

Abstract: Disclosed herein are an X-ray detector, in which an active area of the X-ray detector has an improved structure for a user's convenience, and an X-ray imaging apparatus having the same, The X-ray detector is configured to detect X-rays irradiated from an X-ray source, and includes: a top frame that includes a first area, a second area which is bent from the first area, and an active area which is biased from a center of the first area; a side frame that includes a top frame resting part which is formed in an outer surface which faces an outside of the X-ray detector and on which the second area rests, the side frame being coupled with the top frame to form an accommodation space; and a sensor panel disposed in the accommodation space and configured to convert the detected X-rays into an electrical signal, the sensor panel being biased from the center of the first area to correspond to the active area.

Abstract: A shift lock structure of a shift lever, includes: an engaging lever provided at a lower end portion of the shift lever and rotated when the shift lever is rotated; a solenoid valve having a plunger extending in a direction intersecting a direction in which the engaging lever is rotated and configured to allow the plunger to be retracted or extracted depending on a shift stage; and a lock lever located in a rotation direction in which the engaging lever is rotated from a P-stage to another stage, and coupled with the plunger such that, when the shift stage is the P-stage, when the plunger is extracted and moved in an axial direction thereof, the lock lever blocks rotation of the engaging lever, implementing the shift lock.

Abstract: A base station defines a short TTI (transmission time interval) equal to the length of one subslot as the minimum unit of a time resource for data transmission in a subframe including a plurality of subslots, determines the RS type the terminal will use for transmission, among a plurality of RS types, based on the positions of RSs (reference signals) within the short TTI, and sends information on the RS type the terminal will use for transmission to the terminal.

Abstract: A semiconductor device includes a substrate including a cell array region including a cell active region. An insulating pattern is on the substrate. The insulating pattern includes a direct contact hole which exposes the cell active region and extends into the cell active region. A direct contact conductive pattern is in the direct contact hole and is connected to the cell active region. A bit line is on the insulating pattern. The bit line is connected to the direct contact conductive pattern and extends in a direction orthogonal to an upper surface of the insulating pattern. The insulating pattern includes a first insulating pattern including a non-metal-based dielectric material and a second insulating pattern on the first insulating pattern. The second insulating pattern includes a metal-based dielectric material having a higher dielectric constant than a dielectric constant of the first insulating pattern.

Abstract: A display device that senses externally applied pressure and a change in the resonant frequency of a piezoelectric element. The display device includes a piezoelectric sensor layer including a piezoelectric sensor; and a display panel disposed on the piezoelectric sensor layer. The piezoelectric sensor includes: a piezoelectric element having a first electrode, a second electrode facing the first electrode, and a piezoelectric material disposed between the first electrode and the second electrode; an alternating current (AC) voltage generator connected to the first electrode and applies a voltage having a resonance frequency to the piezoelectric element. A sensing circuit connected to the second electrode is configured to measure a change in impedance of the piezoelectric element.

Abstract: A wireless power transmission apparatus includes a resonator configured to be magnetically coupleable to a wireless power reception apparatus; an inverter configured to operate the resonator; and a resonant frequency controller configured to control a resonant frequency of the resonator in response to a change in operating frequency of the inverter.

Abstract: The X-ray detector includes a sensor module provided with at least one sensor detecting an event, a communication interface connectable to at least one workstation, and a controller. The controller determines occurrence or non-occurrence of the predefined event based on an output value of the sensor module, and performs a configuration operation of the communication interface based on configuration information corresponding to the generated predefined event when occurrence of the predefined event is determined.

Abstract: An apparatus for transmitting power wirelessly includes a power transmitter configured to transmit power wirelessly to an apparatus for receiving power wirelessly, and an identification information manager configured to transmit first identification information allocated to the apparatus for transmitting power wirelessly to other devices.

Abstract: A method and apparatus for analyzing cyber threat intelligence data. The method includes: acquiring first and second CTI graphs including first and second CTI data, respectively, classified based on a first classification item; classifying the first CTI data and the second CTI data based on a second classification item determined depending on the first classification item; outputting a graph similarity of the first and second CTI graphs determined based on a first CTI similarity between the first and second CTI data when the first and second CTI data belong to the same classification as a result of the classification; setting the first CTI graph and the second CTI graph to be included in one group when the graph similarity is equal to or greater than a threshold value; and outputting CTI information including the first and second CTI data for each group.