Abstract: A pharmaceutical composition includes a Quisqualis indica extract as an active ingredient, for preventing or treating prostatic hyperplasia, and to a food composition. The Quisqualis indica extract can be favorably used to treat and prevent prostatic hyperplasia by exhibiting effects of a reduction in prostate weight, a reduction in DHT as a prostatic hyperplasia inducing factor, and a reduction in prostate epithelial cell hyperplasia.

Abstract: According to various embodiments, a helmet device includes a communication module, a sensor module, a camera module, and a processor, wherein the processor is set to determine whether a user wears the helmet device using the sensor module, when it is determined that the user wears the helmet device, transmit a first transmission signal indicating that the user wears the helmet device to a user device interworking with the helmet device through the communication module, upon receiving a first response signal for the first transmission signal from the user device through the communication module, activate the camera module and then determine whether an external object approaches based on an image acquired through the camera module, and in response to the approach of the object, provide a notification to the user. Various other embodiments are also possible.

Abstract: A perovskite nanocrystal having improved colloidal stability and a preparation method thereof are proposed. The perovskite nanocrystal includes a CsPbX3 (X is halogen) perovskite nanocrystal and a hydrazinium (NH2—NH3+) ligand bonded to a surface of the CsPbX3 perovskite nanocrystal.

Abstract: The present invention relates to a method for vitrification and thawing of oocytes of animals for somatic cell cloning. More specifically, the present disclosure relates to a method for vitrification and thawing of canine oocytes, and to thus produced frozen-thawed oocytes. In a conventional approach of the vitrification-frozen oocyte production for the dog, an estrous cycle may not coincide with an experimental schedule. However, the method for vitrification and thawing of the canine oocyte according to the present disclosure and the resulting frozen-thawed oocyte allows an experimental schedule to coincide with the estrous cycle, resulting in high nuclear transfer and fertilization effects.

Abstract: The present invention comprises a pair of current collectors positioned parallel to each other at a predetermined interval, wherein the pair of current collectors have a three-dimensional sharp protrusion structure formed on the surface thereof, so that the charge distribution is concentrated on the three-dimensional sharp protrusion structure to increase the charging capacity per unit area of a battery.

Abstract: Proposed is a liquid-crystal-based binary phase shifter using a liquid crystal, a material in the spotlight in the super-high-frequency field. The liquid-crystal-based binary phase shifter includes a phase shift circuit board having an upper substrate and a lower substrate combined each other with a spacer having a liquid crystal cell gap therebetween, a liquid crystal being inserted into the spacer; metal vias provided at opposite ends of the upper substrate with transmission lines between the metal vias; and a phase shift meander line provided on a lower metal ground plane placed between the metal vias positioned at the opposite ends, wherein phase shift regions of the lower metal ground plane are selectively divided and bias is discretely applied by region. Beyond the use of a liquid crystal in an RF circuit, a unique method of applying a bias voltage is proposed for a variable speed of the liquid crystal, thereby obtaining the maximum phase shift amount and the highest response speed.

Abstract: A battery management apparatus includes a plurality of battery cells connected to one another in at least one of a series connection or a parallel connection; a detector configured to detect electrical signals of the battery cells; a monitor configured to obtain the electrical signal for each of the battery cells and values of correlation coefficient corresponding to correlation results obtained based on the electrical signals, and to generate identification signals corresponding to the electrical signals of the battery cells based on the values of correlation coefficient and a reference value; and a storage configured to store the identification signals generated by the monitor for each of the battery cells. The monitor is configured to recognize a risk of failure of each of the battery cells based on an accumulated number of identification signals stored in the storage for each of the battery cells.

Abstract: A method of estimating an SOC value of a battery, includes measuring an initial voltage and an initial current of the battery, estimating resistance parameters of respective battery models based on the measured initial voltage and the measured initial current, converting the estimated resistance parameters by comparing an actually measured voltage value with OCVs determined through the estimated resistance parameters, determining probabilities that the battery corresponds to the respective battery models based on difference values between voltage values of the battery models estimated based on the estimated resistance parameters of the respective battery models and the actually measured voltage value, determining a fused OCV by applying weights to the probabilities that the battery corresponds to the respective battery models based on model OCV information of the respective battery models determined based on the converted resistance parameters, and estimating the SOC value of the battery based on the fused OC

Abstract: Disclosed is a qualitative evaluation method of a volumetric defect density due to other grains having different crystal orientations from a single crystal matrix in a (001) monoclinic gallium oxide sample or a (010) monoclinic gallium oxide sample. The method includes the steps of: forming an etch pit by etching an observation plane of a single crystal; and selecting a quadrilateral etch pit formed by volumetric defects except for void defects.

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 present disclosure relates to an immune-enhanced virus vaccine based on virus surface engineering. A linker peptide according to one aspect has the property of being attachable to a virus, and may be used as a linker that may effectively bind an immune-enhancing substance, which activates the immune system, to the surface of the virus, and thus may improve the immunogenicity of the vaccine. By incorporating the linker peptide into virus surface engineering technology, an immune-enhancing substance may be attached to the surface of the virus, which may be useful in an immune-enhanced vaccine platform.

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 invention relates to an apparatus for reinforcing security of a mobile trusted execution environment, and relates to an apparatus for reinforcing security of a mobile trusted execution environment for constructing a general-purpose trusted execution environment. According to an embodiment of the present invention, a technology available for a general purpose in a mobile device operating on the basis of an ARM architecture has effects of configuring a trusted execution environment for guaranteeing safe execution of an application without depending on an existing commercial security technology, and of configuring a mobile trusted execution environment by using a write area execution prevention function and a debugging watchpoint, which are general-purpose hardware functions.

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 deep learning-based image stitching method and apparatus are provided. The deep learning-based image stitching method includes receiving a plurality of images including a first image and a second image stitched to the first image, extracting a feature map of the plurality of images, generating a plurality of flow maps indicating movement information of pixels of the plurality of images, based on the feature map, generating a plurality of warping images in which the pixels of the plurality of images are moved, by applying the plurality of flow maps to the plurality of images, respectively, generating a plurality of weight maps for blending the plurality of warping images, based on the feature map, and generating a stitch image in which the first image and the second image are stitched, by blending the plurality of warping images based on the plurality of weight maps.

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: 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: 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.