Abstract: Disclosed is a transformer-based voice recognition technology using an improved voice as a conditioning feature. A voice recognition method performed by a voice recognition system may include inputting, to a voice recognition model, clean voice data estimated by a voice improvement model and voice data including noise and performing voice recognition based on the estimated clean voice data and the voice data including the noise by using the voice recognition model. The voice recognition model may be trained to perform the voice recognition robust against noise through a combination of a voice feature of the voice data including the noise and a voice feature of the estimated clean voice data by using the estimated clean voice data as a conditioning feature.

Abstract: Provided is an etching method. The etching method includes loading a substrate into a process chamber, wherein the process chamber includes a first chamber part and a second chamber part, and the substrate is loaded into the second chamber part, supplying high-density gas plasma to the first chamber part, supplying ultra-low electron temperature plasma to the second chamber part using at least a portion of the high-density gas plasma, adsorbing radicals of the ultra-low electron temperature plasma to a surface of the substrate, and applying a bias to the substrate to accelerate at least one of ions or electrons of the ultra-low electron temperature plasma so as to collide with the substrate.

Abstract: Disclosed are quantum dots including a luminescent dopant. More particularly, each of the quantum dots according to an embodiment of the present invention includes a core and a shell surrounding the core, wherein at least one of an interior of the core and an interface between the core and the shell is doped with a luminescent group I dopant.

Abstract: An apparatus for measuring properties of a thermosetting polymer includes a body having a first chamber and a second chamber each filled with the thermosetting polymer material. A first FBG sensor is disposed in the polymer material within the first chamber and a second FBG sensor is disposed in the polymer material within the second chamber. A first dielectric constant sensor is in the first chamber, and a second dielectric constant sensor is in the second chamber. A computing device is configured to measure properties of the thermosetting polymer based on wavelength data measured using the first FBG sensor and the second FBG sensor, and a loss coefficient of the polymer material measured using the first dielectric constant sensor and the second dielectric constant sensor, while the thermosetting polymer solidifies in the first chamber and the second chamber.

Abstract: Disclosed are a membrane electrode assembly for water electrolysis, a water electrolysis cell including the membrane electrode assembly, and a method for fabricating the membrane electrode assembly. An anion exchange membrane of the membrane electrode assembly for water electrolysis includes a polymer having a stable backbone without aryl ether linkages and containing piperidinium groups with high chemical stability and phenyl-based blocks with excellent mechanical properties introduced therein. Due to its structure, the polymer has improved alkaline stability and processability and excellent mechanical properties, based on which the durability of the membrane electrode assembly can be improved. Therefore, the membrane electrode assembly for water electrolysis can be used to manufacture a water electrolyzer with high current density, low resistance, and improved life characteristics.

Abstract: The present disclosure relates to a method and device for providing a V2X service in a next generation radio access technology (new RAT). The present embodiments may provide a method and device for performing sidelink communication by a transmission terminal, the method comprising the steps of: receiving, from a base station, one or more pieces of DMRS pattern information and a resource information set comprising information about one or more sidelink resources; selecting, on the basis of the resource information set, one sidelink resource for performing sidelink communication; selecting, on the basis of the selected one sidelink resource, a particular DMRS pattern from among the one or more pieces of DMRS pattern information; and transmitting a PSCCH and a PSSCH in one slot by using the selected sidelink resource, and transmitting, on the basis of the particular DMRS pattern, a DMRS from a particular symbol of the PSSCH.

Abstract: A stabilized elementary metal structure is disclosed. The stabilized elementary metal structure may include an elementary metal having at least one layer and having a two-dimensional layer structure, and an organic molecular layer provided on at least one of a top surface and a bottom surface of the elementary metal.

Abstract: Provided herein are a fabric-based substrate and an organic electronic device including the same. The fabric-based substrate includes a fabric layer having an upper surface and a lower surface. A plurality of electrodes are disposed on the upper surface of the fabric layer. An adhesive layer is provided on the upper surface and the lower surface of the fabric layer and filled at least some empty regions between the electrodes and the fabric layer, between the electrodes, and at least some pores in the fabric layer. A self-healing polymer layer is disposed on the adhesive layer located on the lower surface of the fabric layer.

Abstract: Disclosed are a system and method for automating the design of a sound source separation deep learning model. A method of automating a design of a sound source separation deep learning model, which is performed by a design automation system, may include automatically searching for a combination of hyper parameters of a separation model constructed in a sound source separation deep learning model by using a neural architecture search (NAS) algorithm and reconstructing the sound source separation deep learning model based on the retrieved combination of the hyper parameters of the separation model.

Abstract: A pixel circuit driving method of controlling an operation of a light-emitting element provided in a pixel of a display panel may comprise: applying pulse amplitude modulation (PAM) signals having a plurality of levels to a first terminal of a first transistor having a second terminal connected to a control terminal of a second transistor configured to drive the light-emitting element with a current according to a gray scale required for the light-emitting element; and applying a PAM signal of any one level selected from the PAM signals to the control terminal of the second transistor during each sub-frame time corresponding to a turn-on time of the first transistor controlled by a pulse width modulation (PWM) signal having a plurality of sub-frames in a single frame according to the gray scale.

Abstract: A method for manufacturing a tellurium-based semiconductor device comprises the steps of: preparing a substrate; depositing, on the substrate, a tellurium-based semiconductor material including tellurium and a tellurium oxide so as to form a tellurium-based semiconductor layer; and forming a passivation layer on the tellurium-based semiconductor layer. According to the manufacturing method, heat treatment at a high temperature or cryogenic conditions are not required, and thus, it is possible to manufacture a semiconductor device through a practical process. In addition, since the crystallinity of the tellurium-based semiconductor layer is improved during the manufacturing process, it is possible to provide a p-type semiconductor device having excellent electrical characteristics such as electric field mobility and a current blink ratio.

Abstract: A method, performed by an electronic device, of matching a musical imaginary electroencephalogram (EEG) with a melody includes obtaining an EEG generated by imagining music from a user, obtaining at least one brain wave segment from the EEG, identifying key points included in the at least one brain wave segment, matching a pitch value to each of the at least one brain wave segment based on the identified key points, and compensating for the pitch value matching the at least one brain wave segment based on a musical probability map.

Abstract: Provided are a method and device for providing vehicle-to-everything (V2X) services in next generation wireless access technology (New RAT). The method controls the sidelink HARQ feedback operation by a terminal. A PSSCH scheduled by a PSCCH including sidelink control information is received from a transmitting terminal. Wireless resources of a PSFCH including HARQ feedback information regarding the PSSCH are determined and allocated in one symbol. The PSFCH, allocated in the one symbol, are repeatedly transmitted to the transmitting terminal in two consecutive symbols.

Abstract: A magnetic catheter is disclosed. The magnetic catheter comprises: a first fixed magnet which is coupled to the front end of a catheter tube; a guide rod of which one end is coupled to the front end of the catheter tube, and the other end protrudes to the front of the catheter tube by a predetermined length; a body which is provided with a drill tip on the front end thereof, and has formed therein an inner space in which the other end of the guide rod is positioned; and a first drive magnet which is coupled to the body along the outer peripheral surface of the body.

Abstract: A transformable wheel module is disclosed. The transformable wheel module comprises: a plurality of lobes; and a mode switching unit for switching modes between a first traveling mode in which the lobes are coupled in a ring shape and a second traveling mode in which the lobes are separated from each other, wherein the mode switching unit can include: a first rotary link; a second rotary link positioned on the same rotational axis as the first rotary link; a plurality of first connecting links for individually connecting the first rotary link and the lobes; a plurality of second connecting links for individually connecting the second rotary link and the lobes; a first driving motor for rotating the first rotary link; and a second driving motor for rotating the second rotary link.

Abstract: An apparatus for estimating blood pressure includes: a photoplethysmogram (PPG) sensor configured to measure a PPG signal from an object; a force sensor configured to measure a force signal acting between the object and the PPG sensor; and a processor configured to (i) divide a predetermined blood pressure range into a plurality of classes, (ii) input the measured PPG signal and the measured force signal into a blood pressure estimation model to obtain the probability values for each of the classes, and (iii) estimate blood pressure based on the obtained probability values for the respective classes.

Abstract: According to an aspect, a WPE-based dereverberation apparatus using virtual acoustic channel expansion based on a deep neural network includes a signal reception unit for receiving as input a first speech signal through a single channel microphone, a signal generation unit for generating a second speech signal by applying a virtual acoustic channel expansion algorithm based on a deep neural network to the first speech signal and a dereverberation unit for removing reverberation of the first speech signal and generating a dereverberated signal from which the reverberation has been removed by applying a dual-channel weighted prediction error (WPE) algorithm based on a deep neural network to the first speech signal and the second speech signal.

Abstract: The present invention relates to a method for in vitro production of red blood cells. The method for in vitro production of red blood cells, according to the present invention, specifies, by cell size, the maturation step of cells exhibiting optimal effects in an agitation-type culture, so that even if an expert does not always identify cell shape, automated processes of culturing are possible, and thus automation in bioreactors is possible in the mass-production of uniform quality and red blood cells.

Abstract: A spin-orbit-torque (SOT)-based magnetic sensor is provided. The magnetic sensor includes a substrate, an electrode layer formed on the substrate, and a pair of first and second sensing elements stacked on the substrate so as to be connected to the electrode layer, wherein directions of respective currents flowing through the first and second sensing elements via the electrode layer are opposite to each other.

Abstract: The present embodiments relate to a method and device for obtaining location information of a terminal by using a wireless communication system. Provided according to an embodiment is a device for acquiring the location information of a terminal, the device comprising at least one downlink signal receiver, at least one uplink signal receiver, and a controller for controlling the downlink signal receiver and uplink signal receiver, wherein the controller configures uplink resource assignment information on the basis of control information received by the downlink signal receiver and determines whether an uplink signal is received, on the basis of the uplink resource allocation information.