Abstract: A manufacturing method of a catalyst may modify a carbon layer structure by using various heat treatment gases such as inert gas (Ar), hydrogen, and carbon monoxide in a carbon layer manufacturing process, thereby optimizing the carbon layer structure according to the purpose of a metal without changing a size of the metal.

Abstract: Disclosed are a method for preparing a graphene dot-palladium hybrid having a nanosponge structure that includes reducing a palladium precursor in the presence of a carbon dot and sodium bromide, and a graphene dot-palladium hybrid catalyst prepared according to the method. The nanosponge structure of the graphene dot-palladium hybrid is encapsulated by a graphene dot. The carbon dot is doped with at least one heteroatom selected from the group consisting of nitrogen, sulfur, phosphorus, and boron.

Abstract: The present disclosure relates to a kit and an information providing method capable of predicting or diagnosing a cause-specific therapeutic effect of sensorineural hearing loss. The kit and the method according to one aspect of the present invention can diagnose a cause-specific therapeutic effect of sensorineural hearing loss at an early stage and allow selection of the most appropriate treatment method.

Abstract: A battery risk assessment device for a battery module including a plurality of battery cells, including a data measurement unit configured to generate sensing data corresponding to the battery module, wherein the sensing data include cell voltage data comprising voltage information about the plurality of battery cells, cell temperature data comprising temperature information about the plurality of battery cells, module voltage data comprising information about a voltage output from the battery module, and module current data comprising information about a current output from the battery module; a deviation calculator configured to: calculate diffusion resistance data of the plurality of battery cells by using a Thevenin equivalent circuit of the battery module, and calculate deviation information based on the sensing data and the diffusion resistance data, wherein the deviation information indicates at least one from among a voltage deviation of the plurality of battery cells, a temperature deviation of the p

Abstract: A battery life prediction device, including a state data generator configured to receive information about a battery in real time and to generate state-of-health data; a state data storage configured to store the state-of-health data and past state data; and a battery life calculator configured to: generate a health state model based on the past state data, generate state prediction data based on the state-of-health data using the health state model, determine whether to modify the health state model based on the state prediction data and the state-of-health data, and calculate a remaining life of the battery, wherein the generating of the health state model includes generating an initial model including a non-linear function, determining an initial model coefficient using a least squares approximation based on the past state data, and generating the health state model based on the initial model coefficient and the initial model

Abstract: Proposed is a lithium secondary battery cathode active material doped with B and Al. The cathode active material has a high specific capacity upon charging and discharging, a high capacity resilience, and a high capacity retention rate.

Abstract: Proposed are luminescent nanoparticles and a method of preparing the same. The luminescent nanoparticles include a core-shell composite and a polymer brush grafted on the surface of the composite, in which the composite is composed of a core containing porous silica nanoparticles and CsPbX3 (X is a halogen) perovskite nanocrystal supported in the porous silica nanoparticles and a lead-containing silicate shell formed on the surface of the core.

Abstract: Disclosed is an apparatus for measuring the distribution of radiation dose emitted from a brachytherapy insertion tool, the apparatus including a housing having defined therein a measurement space in which the brachytherapy insertion tool is located, a fluorescent member disposed at the housing, the fluorescent member being configured to react with radiation emitted to the measurement space and to emit light, a camera disposed in the housing, and a cover coupled to one surface of the housing, the cover being configured to cover the fluorescent member. The portion of the fluorescent member to which radiation from a radiation source of the brachytherapy insertion tool is applied reacts with the radiation and generates light, brightness of the light varies depending on distribution of the radiation, and the position at which the light is bright is calculated to measure the direction in which the brachytherapy insertion tool has no shielding.

Abstract: A wide-band low-noise amplifier structure for removing an out-of-band blocker includes a transconductance pre-amplifier stage configured to convert a voltage signal into a current signal, a filter stage including a main path and an auxiliary path connected in parallel, the main path passing a first signal including all of the current signal, and the auxiliary path passing a second signal including only an out-of-band portion of the current signal, and a combination stage configured to output a third signal corresponding to a difference between the first signal and the second signal, the third signal including only an in-band portion of the current signal.

Abstract: Disclosed is a high-quality and high-functional graphene-based TFT, including: a gate electrode, a gate insulating layer disposed on the gate electrode; an active layer including a nitrogen-doped graphene layer, on which disposed in a partial region of the gate insulating layer; a first electrode disposed on a region of one side of the active layer; and a second electrode disposed on a region of the other side of the active layer. The present invention allows obtaining the TFT having excellent characteristics by directly growing graphene on a Ti layer, implementing damages with remote plasma, and doping with nitrogen gas to fabricate a graphene active layer.

Abstract: Disclosed is a nonincendive electrolyte for lithium secondary battery, the electrolyte using an organic solvent mixture including a first solvent containing fluorine and sulfur, a second solvent that is a linear carbonate-based compound containing fluorine, a third solvent that is a linear ester-based compound containing fluorine, and a fourth solvent that is a cyclic carbonate-based compound. Thus, the electrolyte is nonflammable or flame-retardant, thereby preventing a lithium secondary battery from catching on fire or exploding. That is, the electrolyte greatly improves the safety of a lithium secondary battery, allows the high voltage charge of a lithium secondary battery, and prevents the degradation of battery performance of a lithium secondary battery. In addition, a lithium secondary battery including the electrolyte is disclosed.

Abstract: Provided is a method of enhancing quality of audio data which comprise obtaining a spectrum of mixed audio data including noise, inputting two-dimensional (2D) input data corresponding to the spectrum to a convolutional network including a downsampling process and an upsampling process to obtain output data of the convolutional network, generating a mask for removing noise included in the audio data based on the obtained output data and removing noise from the mixed audio data using the generated mask, wherein, in the convolutional network, the downsampling process and the upsampling process are performed on a first axis of the 2D input data, and remaining processes other than the downsampling process and the upsampling process are performed on the first axis and a second axis.

Abstract: A battery cell measurement module includes a lower housing having a connection part and a fixing part connected to the lower housing. An upper portion of the fixing part has a battery cell accommodation space accommodating a battery cell. The fixing part includes a connection hole that is in communication with the battery cell accommodation space and has the connection part arranged therein. Module includes a height control part that extends from the battery cell accommodation space to the connection part via the connection hole. Module includes an upper housing detachably attached to the lower housing, arranged to surround the fixing part and the height control part, and provided with a transparent window. The battery cell has an opening in an upper surface of the battery cell and is accommodated in the battery cell accommodation space such that the opening is located at a position vertically overlapping the transparent window.

Abstract: A multi-party session key agreement method includes: a test session for exchanging a short-term key between parties of 3 to n peers; and an original session for exchanging a long-term key between the parties who have exchanged the short-term key. Peer (n) that has conducted the test session and the original session has cluster (n) that manages the keys as a result of conducting the sessions, and cluster (n) agrees with a result of the session conducted in peer (n) by communicating with cluster (n+1) of another peer (n+1).

Abstract: The electrolyte for a lithium secondary battery includes: a lithium salt; a solvent; and a functional additive, wherein the functional additive includes: at least one high-voltage additive selected from a group consisting of lithium bis(phthalato)borate, represented by the following formula 1; hexafluoroglutaric anhydride, represented by the following formula 2; and phosphoric acid tris(2,2,2-trifluoroethyl)ester, represented by the following formula 3:

Abstract: An operating method of a radar sensor includes: performing object classification on a detected target; comparing a confidence score of a result of the object classification with a threshold value; determining whether high-resolution information on the detected target is to be generated based on a result of the comparison; in response to a determination that the high-resolution information is to be generated, selecting one or more of a plurality of analog-to-digital converters (ADCs) of the radar sensor, and determining control information for changing a setting of the selected one or more ADCs; changing the setting of the selected one or more ADCs based on the determined control information; generating first intermediate frequency signals based on respective first reception signals and a frequency modulated signal, the first reception signals being signals received through reception antennas after a first transmission signal output by the radar sensor is reflected by the detected target, and the first transmi

Abstract: Provided is a method of enhancing quality of audio data which comprise obtaining a spectrum of mixed audio data including noise, inputting two-dimensional (2D) input data corresponding to the spectrum to a convolutional network including a downsampling process and an upsampling process to obtain output data of the convolutional network, generating a mask for removing noise included in the audio data based on the obtained output data and removing noise from the mixed audio data using the generated mask, wherein, in the convolutional network, the downsampling process and the upsampling process are performed on a first axis of the 2D input data, and remaining processes other than the downsampling process and the upsampling process are performed on the first axis and a second axis.

Abstract: An oil adsorbent is manufactured by including performing heat treatment on a non-woven fabric for low-temperature carbonization, and has the effect of adsorbing and evaporating oil having various carbon numbers ranging from a low boiling point to a high boiling point to remove the oil, has photothermal conversion efficiency, high evaporation efficiency of oil by sunlight, and a high adsorption amount and high adsorption rate, thereby making the adsorption-evaporation cycle fast and efficiently performing the adsorption-evaporation, and has an environmentally friendly effect that does not cause any environmental problems even if the oil adsorbent is put into a river, a sea, or the like and then lost.

Abstract: Disclosed is a method for estimating twin defect density in a single-crystal sample, including: (A) etching the observed surface of a single crystal to form etch pits; (B) selecting bar-shaped etch pits caused by twin defect; (C) from the long-axis direction lengths of the etch pits caused by twin defect, estimating the twin defect density by using the following equation: twin defect density=?kx?i/area of sample, wherein 2?k?3, and x?i is the long-axis direction length of an etch pit caused by the i-th twin.

Abstract: The present invention relates to a composition for inhibiting sebum secretion comprising a FABP4 inhibitor, more specifically, relates to a composition for inhibiting sebum secretion capable of regulating sebum secretion by reducing lipid synthesis in sebocytes, inhibiting lipid synthesis-related signal transduction systems, and reducing the expression of lipid synthesis-related electronic factors. Also, the composition of the present invention can be used for preventing, treating or improving acne or seborrheic dermatitis.