Abstract: A biosensor using an array antenna includes: at least two antenna elements that are spaced apart from each other along the lateral circumference of an object, radiate electromagnetic waves having a directivity toward the inside of the object, and receive a scattered electromagnetic field; a signal generator for generating a feed signal with a frequency sweep; a phase shifter for adjusting the phase of the feed signal and transmitting the feed signal to the at least two antenna elements; and a controller for detecting the location of a target part inside the object based on the scattered electromagnetic field received in response to the radiated electromagnetic waves by sweeping the frequency and phase of the feed signal.

Abstract: An antenna device includes: a first and a second conductive wire; a third and a fourth conductive wire which are disposed along a part of the boundary of a second area on a second plane parallel to and spaced apart from the first plane while being spaced apart from each other; a fifth and a sixth conductive wire which are disposed along a part of the boundary of a third area on a third plane parallel to and spaced apart from the second plane while being spaced apart from each other; connection parts connecting the second conductive wires.

Abstract: There is provided an electroencephalogram (EEG) signal amplifier for boosting impedance in an analog front end (AFE). The EEG signal amplifier includes a first feedback loop configured to amplify an EEG signal, a second feedback loop connected to the first feedback loop and configured to amplify an input impedance, and an attenuator included in the second feedback loop.

Abstract: Provided is a dielectric thin film. The dielectric thin film includes: a plurality of ferroelectric domains including phonons having displacement in a direction of a first axis; and a plurality of spacers configured to block elastic interaction between the phonons, wherein the ferroelectric domains and the spacers are alternately and repeatedly arranged along a second axis which is perpendicular to the first axis.

Abstract: An input sensing unit that utilizes conductive layers to sense various types of input. The input sensing unit may include a first conductive layer including first sensing electrodes; a second conductive layer disposed on the first conductive layer, the second conductive layer including second sensing electrodes and third sensing electrodes; and at least one insulating layer insulating the first conductive layer and the second conductive layer from each other. The input sensing unit senses at least one of a touch, a pressure, and a degree of moisture based on a change in capacitance between the conductive layers.

Abstract: Disclosed is a method of preparing single crystal ingot of barium zirconium oxide. The method includes preparing a cylindrical BaZrO3 ceramic by pulverizing a BaZrO3 compound into a powder and sintering the same into a cylindrical ceramic form, ii) fixing two cylindrical BaZrO3 ceramics to an optical floating zone furnace, joining the two cylindrical BaZrO3 ceramics together and melting the junction at a temperature of 2,600 to 3,500° C. using light emitted from a xenon lamp or laser, and after the melting, moving the two cylindrical BaZrO3 ceramics in a direction parallel to an axis of rotation thereof, enabling the molten junction to be solidified, and thereby growing a single crystal.

Abstract: A bio sensor using electromagnetic waves according to an embodiment may comprise a resonator assembly, a power supply unit, and a processor. The resonator assembly may include at least one feeding line which is disposed along the outer edge of a feeding area and can feed electric power to the feeding area, and a pattern wire which is disposed along a pattern in the feeding area and can receive electric power from the feeding line through capacitive coupling. The power supply unit may supply electric power to the resonator assembly. While a frequency of the electric power is swept, the processor may acquire a parameter which is biometric data corresponding to a concentration of a target analyte existing around the resonator assembly and is related to a resonant frequency of the resonator assembly.

Abstract: The present invention relates to a recombinant microorganism for producing formic acid, which has a formate dehydrogenase 1 alpha subunit (FDH1?)-encoding endogenous gene deleted therefrom and an FDH1-encoding exogenous gene introduced thereinto, and a method for production of formic acid by using the microorganism.

Abstract: A perovskite light emitting diode having degradation of the characteristics of the light emitting device, caused by PEDOT:PSS can be improved by replacing PEDOT:PSS contained in a conventional hole transport layer with an anionic conjugated polymer having ammonium-based counter ions, and the light emission characteristics can be greatly improved by passivating defects of a perovskite light emitting layer with a hole transport layer containing a conjugated polymer and increasing crystal growth.

Abstract: The present invention provides a quantum dot of which a surface is passivated with a short chain ligand, and a method of passivating a surface of the quantum dot using a ligand exchange reaction.

Abstract: Disclosed is a method and apparatus for extracting data in a deep learning model. The method includes receiving an input query, determining a first decision boundary set being a subset of a decision boundary set corresponding to a target layer of the deep learning model, extracting a decision region including the input query based on the first decision boundary set, and extracting data included in the decision region.

Abstract: The present disclosure relates to a method for manufacturing a coin-type secondary battery. The method includes at least: bonding one or more solid electrolytes to an anode upper case; forming an anode active material layer on an anode current collector; sequentially stacking the anode current collector on which the anode active material layer is formed and the anode upper case to which the one or more solid electrolytes are bonded on an anode bottom case to obtain an anode part; sequentially stacking the anode part, a separator, a cathode current collector, and a second case including one or more openings on a first case; bonding the first case to the second case; and introducing an ion-containing solution containing sodium, lithium, magnesium, and a combination thereof from the outside of the second case into an interior thereof.

Abstract: A catalyst with a core-shell structure for methane oxidation, a method of preparing the catalyst, and a method of methane oxidation using the catalyst are disclosed. The catalyst includes a core structure consisting of a nano-support and core nanoparticles; and a shell coating layer coated on the core structure in which the core nanoparticles have a particle diameter smaller than that of the nano-support and are coated on the nano-support to form a core structure. The catalyst has excellent thermal stability during methane oxidation reaction at high temperature and an effect of increasing methane conversion and formaldehyde selectivity.

Abstract: The present disclosure relates to an apparatus for charging and discharging a coin-type secondary battery. The apparatus includes at least: a vessel filled with a solution containing water or sodium ions; a jig part installed at the vessel, having an interior in which a coin-type secondary battery is mounted, and configured to allow a cathode part of the coin-type secondary battery to be brought into contact with the solution in the vessel; an anode terminal installed at the jig part and electrically connected to an anode part of the coin-type secondary battery; and a cathode terminal electrically connected to the cathode part of the coin-type secondary battery.

Abstract: The present disclosure relates to a rechargeable battery including a cell assembly including a plurality of unit cells disposed to be separated by a predetermined interval, a casing member receiving the cell assembly, a first connection part connecting the plurality of unit cells, and a second connection part disposed parallel to the first connection part and connecting the plurality of unit cells, wherein each of the plurality of unit cells includes a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode.

Abstract: The present invention relates to a glucose measurement device which is arranged and operates under the skin of a subject. One embodiment can comprise: a transmitting unit for wirelessly receiving power and transmitting measured biometric-related parameters; a clock recovery unit for recovering a frequency used for the wireless power reception of the communication unit; a direct frequency synthesizer for converting the recovered frequency recovered by the clock recovery unit into a first band frequency; a clock control unit, which divides the recovered frequency so as to input same in an injection locked oscillator as a specific interval frequency; the injection locked oscillator, which receives the first band frequency and the specific interval frequency so as to output a second band frequency; and a measurement unit for measuring subcutaneous biometric-related parameters by using the second band frequency.

Abstract: The present disclosure relates to a photoelectrochemical photoelectrode for water splitting, which includes a plate-type photoelectrode including a transparent electrode substrate and a photoanode layer disposed on the transparent electrode substrate, wherein the plate-type photoelectrode exists in a plural number, and the plural plate-type photoelectrodes are disposed in such a manner that the transparent electrode substrate of one photoelectrode may face the photoanode layer of the other photoelectrode, while being spaced apart from each other. In this manner, it is possible to scale-up the photoelectrochemical photoelectrode for water splitting, while providing improved water splitting performance.

Abstract: Disclosed is a ferromagnetic element-substituted room-temperature multiferroic material having ferromagnetism and ferroelectricity at room temperature, wherein the ferromagnetic element-substituted room-temperature multiferroic material includes a compound of chemical formula 1: <chemical formula 1> (Pb1-xMx)Fe1/2Nb1/2O3. In chemical formula 1, M represents a ferromagnetic element, and x represents a number greater than 0 and smaller than 1.

Abstract: A method and apparatus for partitioning memory bandwidth of a system determines state combinations of techniques for partitioning the memory bandwidth of the system based on at least one application program executed on cores of the system, determines candidate state combinations corresponding to characteristics of the application program, among the state combinations, by profiling the application program based on the state combinations, selects a final state combination for the application program by exploring a state space of the system corresponding to the candidate state combinations, and partitions the memory bandwidth of the system based on the final state combination.

Abstract: The present invention relates to a centrifugal force-based nanoparticle separation apparatus and method. Specifically, the present invention is based on having a low centrifugal force and a small size, and may thus separate nanovesicles unrelated to antibody specificity in a short time and without using an ultracentrifuge. Further, the present invention requires no additional professional personnel and enables accurate fluid measurement by integrating and automating all processes after sample injection, and may thus reduce the loss of nanovesicles.