Abstract: Disclosed is an ultrasonic wave transmission structure which is provided on a path of ultrasonic waves to amplify incident ultrasonic waves. The ultrasonic wave transmission structure includes: multiple rings each provided with a body portion having a different radius from other body portions and spaced apart from another body portion adjacent thereto and a slit disposed between adjacent body portions; and a membrane disposed in the multiple rings, wherein the mass of the membrane is adjusted to vary a resonant frequency in multiple sub-membrane regions.

Abstract: Disclosed are a nanoenergetic material composite-based solid propellant, a method of preparing the same, and a projectile using the same. The propellant includes: potassium nitrate-sucrose (KNSU) composite powder; and nanoenergetic material (nEM) composite powder in a solid powder form mixed with the KNSU composite powder to prepare a KNSU/nEM propellant. The method includes: preparing KNSU composite powder; preparing nEM composite powder; and preparing a KNSU/nEM propellant by mixing the KNSU composite powder and the nEM composite powder in a solid powder form. The projectile includes: a clay block; a clay nozzle responsible for releasing the pressure generated by explosion of a propellant; and a propellant lamination area disposed between the clay block and the clay nozzle. Upon ignition of the KNSU/nEM propellant, the nEM composite powder increases the combustion rate and combustion temperature of a potassium nitrate-sucrose (KNSU) propellant.

Abstract: A holographic-based directional sound device is provided, the device including: a sound wave generating means generating a sound wave; and a flat plate configured to have the sound wave generating means installed at the center so as to radiate the sound wave to the outside through a surface, and to be composed of a plurality of unit cells, in which at least one groove is formed on a surface of the unit cell, and a radiation angle of the sound wave is determined according to a depth of the groove with respect to the unit cell, wherein the depth of the groove is determined by an individual surface admittance calculated by a cosine function or a sine function of the sum of a first value and a second value on the basis of a preset radiation angle of the sound wave and a preset frequency of the sound wave.

Abstract: A preparing method for a cathode active material precursor for a lithium-ion batteries with a tailor-made concentration gradient, includes: an aqueous metal ion solution preparation step for preparing an aqueous metal ion solution A for center and an aqueous metal ion solution B for surface having different compositions, concentrations, and volumes; a mixed metal ion solution formation step for gradually mixing the aqueous metal ion solution B for surface to the aqueous metal ion solution A for center; a control step for setting a composition and a concentration gradient of the mixed metal ion solution and controlling the same in real time, before moving the mixed metal ion solution to a co-precipitation reactor; and a co-precipitation reaction step for performing a co-precipitation reaction according to conditions set in the control step.

Abstract: An SNN circuit structure based on thin-film transistors, includes: a synaptic pass-transistor unit in which a synaptic transistor circuit unit in which N thin-film transistors are connected in parallel is connected to a common pass-transistor load to maintain an output voltage range of the synaptic transistor circuit unit constant; an output circuit unit configured to output a fire signal according to an output signal output from the synaptic pass-transistor unit; and a backpropagation generating transistor unit configured to provide a backpropagation signal transmitted to the synaptic transistor circuit unit with the fire signal output from the output circuit unit as an input.

Abstract: A blockchain-based platform system for interworking with one machine-to-machine (oneM2M) and lightweight machine-to-machine (LWM2M) and a method of implementing a blockchain-based platform are provided. The blockchain-based platform system for interworking with oneM2M and LWM2M includes a hyperledger fabric network configured to validate chaincode called in association with a first client application and generate an event in association with the validated chaincode, and a fabric bridge gateway configured to perform interworking with an LWM2M protocol and a oneM2M platform by transmitting a request or a response corresponding to the event to a second client application.

Abstract: The present invention relates to a pharmaceutical composition for combined administration of melatonin and prostaglandin E2 (PGE2) for the treatment of intestinal epithelial injury diseases, and it is confirmed that when intestinal epithelial organoids are treated in combination with melatonin and PGE2, the expression of revival stem cell markers increases more than when the two substances are treated alone, and therefore it can be usefully used as a composition for preventing, treating or improving intestinal epithelial injury diseases.

Abstract: A system and a method including a receiving module configured to receive medical data from a medical institution server, a data extraction module configured to extract text data for a body region from the medical data, an image calling module configured to call or generate image data modeling from a position and a shape of the body region by using extracted text data, an object calling module configured to call the image data as an object, and a code editing module configured to write or edit a programming code for the body region corresponding to a called object according to a received input.

Abstract: The present invention relates to a photocurable hemostatic composition and, specifically, to a photocurable liquid hemostatic composition containing a hyaluronic acid-based photocrosslinkable compound and a photoinitiator as active ingredients, and to a hemostatic agent of a film or sponge formulation freeze-dried from the composition, wherein, by increasing the degree of substitution of a photocrosslinkable functional group, the composition can quickly form a gel or a film adhesive layer within a few seconds during light radiation, and the resulting gel remains in a body more stably for a long time, thus enhancing hemostasis and tissue regeneration effects.

Abstract: Disclosed is an output matching network including a first transmission line and a second transmission line each having one end connected to a respective balanced port of a pair of balanced ports; a third transmission line having one end connected to an unbalanced port; and a fourth transmission line. A first capacitor is connected to the unbalanced port and a load. A second capacitor is connected to an end of the fourth transmission line. The third and fourth transmission lines are coupled to the first and second transmission lines.

Abstract: Disclosed is an anti-inflammatory composition containing N-benzyl-N-methyldecan-1-amine or a derivative thereof as an active ingredient. The anti-inflammatory composition contains a compound represented by a following Chemical Formula 1 as an active ingredient. wherein in the Chemical Formula 1, R1 represents hydrogen, fluorine, an alkyl group having 1 to 5 carbon atoms, or an alkoxy group having 1 to 5 carbon atoms, each of R2 and R3 independently represents an alkyl group having 1 to 5 carbon atoms.

Abstract: Provided is a composition for emulsion polymerization which includes: an asymmetric compound represented by the following Chemical Formula 1; an aromatic vinyl monomer; and a conjugated diene-based monomer, and a rubber compound prepared from the same. (in Chemical Formula 1, X is a C1-C10 alkoxy group.

Abstract: There are provided a large-area single-crystal silver thin-film structure using a single-crystal copper thin-film buffer layer, and a method for manufacturing same. The large-area single-crystal silver thin-film structure includes a transparent substrate; a single-crystal copper thin-film buffer layer formed by deposition on the transparent substrate; and a single-crystal silver thin-film layer deposited on the single-crystal copper thin-film buffer layer and having a certain directionality.

Abstract: The present invention relates to a metal doped organic framework-based catalyst, and an oxygen sensing electrode using same, wherein the 3D oxygen sensing electrode is manufactured easily and quickly at a low cost by using a trace amount of noble metal, by means of a polymer/graphene/nanocatalyst composition prepared by 3D printing and nanocatalyst synthesis on the basis of a metal doped organic framework and the 3D oxygen sensing electrode is capable of selectively sensing gases and dissolved oxygen and exhibits long-term stability.

Abstract: A mold for producing a hydrogel support for a 3-dimensional (3D) cell culture, includes: an upper mold comprising a base and a plurality of upper unit molds protruding downward from the base to form accommodating portions of a female type corresponding to shapes of hydrogel supports, having through holes at bottoms thereof, and patterned at a lower portion of the base; a lower mold where a plurality of lower unit molds are patterned, the plurality of lower unit molds formed in a female type to respectively accommodate the plurality of upper unit molds protruding downward and having sealed lower portions; and an ejecting unit for separating, from the accommodating portions of the plurality of upper unit molds, the hydrogel supports that are coagulated after being inserted into the through holes respectively formed in the plurality of upper unit molds.

Abstract: There is provided an RF sputtering apparatus for controlling an atomic layer of a thin film. The RF sputtering apparatus includes: a sputtering main body including a substrate, a target facing the substrate, and a chamber for performing a sputtering process to deposit the target on the substrate; a power supply unit connected to the target of the sputtering main body via a network to apply RF power; a roughing pump unit for forming vacuum inside the chamber of the sputtering main body; and a gas supply unit for supplying reaction gas to the inside of the chamber. A power cable for supplying a power source to the power supply unit is formed with a single crystal copper wire.

Abstract: Disclosed is a method of appraising a genuine product using a quantum dot which includes obtaining image data for fluorescence generated from a target product and a quantum dot layer located in one region of the target product by laser light; determining a relative height and a relative distance between target quantum dots constituting the quantum dot layer by using the image data for the fluorescence, and generating a quantum dot arrangement map; and determining whether the target product is genuine by comparing the quantum dot arrangement map with a previously stored reference quantum dot arrangement map.

Abstract: The present disclosure relates to a pharmaceutical composition containing a cinnamic amide derivative that activates FXR or an isomer, solvate, or pharmaceutically acceptable salt thereof, and a method for preparing the same.

Abstract: A a composition for prevention or treatment of a Staphylococcus aureus infectious disease and a composition for prevention or treatment of a thrombotic disorder caused by Staphylococcus aureus infection are disclosed. Cell lysis by 11 toxins of Staphylococcus aureus can be thoroughly inhibited by using the cross-reactivity of antibodies against Staphylococcus aureus toxins, even with a minimal combination of antigens. The composition can be used as an effective therapeutic composition that can comprehensively remove or alleviate comprehensive pathological conditions caused by infection, away from piecemeal amelioration of individual symptoms caused by Staphylococcus aureus infection, by inducing opsonophagocytosis and effectively controlling blood coagulation in infected individuals.

Abstract: A method and system for training an image classification model is disclosed. An aspect is to separate training processes of a feature value extraction model and an image classification model and train the feature value extraction model on a representative feature value suitable for image classification into a specific label value (e.g., “Peak”), thereby improving accuracy and performance of a classification model for a ground-penetrating radar (GPR) image that is captured by a GPR and is not easy for feature value extraction.