Abstract: Disclosed are an apparatus for managing quantum keys and a method of operating the same to rapidly and flexibly provide quantum keys for network services by effectively and efficiently distributing quantum keys in a quantum-secured network.

Abstract: Embodiments relate to a Brillouin distributed optical fiber sensor including a first light source to output a first light having a modulated intensity at a preset frequency, an optical modulation unit to generate Brillouin probe light and Brillouin pump light using the first light and apply the Brillouin probe light and the Brillouin pump light to one end and the other end of a test optical fiber, respectively, a second light source to apply a second light with a frequency that is different from a frequency of the first light to one end of the test optical fiber in a direction opposite to the Brillouin pump light, and an optical detection unit to detect Brillouin scattered light generated by interaction between the Brillouin pump light and the Brillouin probe light in the test optical fiber.

Abstract: Provided is a high-durability coloring metal member. The high-durability coloring metal member includes a metal substrate, a dielectric layer provided on the metal substrate, and an oxynitride compound layer provided on the dielectric layer. The metal member is capable of expressing vivid and various colors with a color protection layer applied on the surface of the metal member.

Abstract: A light-sensing device senses incident light of a predetermined wavelength and includes a photodiode substrate having a P-N junction structure and a first surface and a second surface facing each other; a metal layer formed on the first surface of the photodiode substrate; and a functional layer formed on the metal layer, and increasing an absorption rate of the metal layer with respect to light of the predetermined wavelength.

Abstract: The present application relates to an apparatus and method for evaluating XR-based upper limb motion control and motion control ability, the apparatus including a head mount display (HMD) configured to be worn on a user's head part and including a display for providing visual feedback information capable of monitoring a visual cue and a repetitive motion of muscle synergy or a direction and magnitude of a force that are contents for XR (eXtended Reality)-based multi-joint rehabilitation training of an upper limb, a measurement part, a synergy evaluation part, a visual cue control part and a composite biofeedback part.

Abstract: The present invention relates to a method for area-selective growth of a noble metal thin film using atomic layer deposition, which can increase the growth thickness of a thin film with a high selectivity by inducing the generation of volatile noble metal oxides and suppressing the growth of the thin film in non-growth areas in depositing a noble metal thin film on the growth area of a substrate using nucleation delay.

Abstract: The method comprises separating the outer green rind the room aloe vera leaf thereby cleaning and drying in sunlight for two days followed by oven drying at 80° C. for about 24 hours; pyrolyzing the dried outer green rind in an inert environment of N2 gas at 400° C. for about 1 hour to obtain a pre-carbonized carbon (AV-C); mixing the AV-C with K2CO3 in a 2:1 impregnation ratio to obtain a mixture;; pyrolyzing the mixture of the AV-C and K2CO3 at 900° C.; removing resulting black charred residue and cleaning the resulting charred residue with double-distilled water and isopropyl alcohol; homogenizing the cleaned black material of reduced graphene oxide using an ultrasonic homogenizer at 30% power for 1 hour with 10 pulse rates thereby drying and filtering the reduced graphene oxide to obtain 3D-HPN-rGO; h) preparing an electrode using the obtained 3D-HPN-rGO; and i) constructing a supercapacitor device using the electrodes.

Abstract: Provided are an apparatus and method for honeycomb artifacts removal for removing honeycomb artifacts in images received from an optical fiber imaging device through a honeycomb artifact removal model. The honeycomb artifact removal apparatus according to an embodiment includes a control unit configured to create a training dataset, build the honeycomb artifact removal model with the created training data, remove a honeycomb artifact in an input image through the built honeycomb artifact removal model and output a corrected image, wherein the control unit is configured to perform preprocessing of a raw image, acquire a honeycomb artifact image through the optical fiber imaging device, and synthesize the preprocessed raw image with the honeycomb artifact image to generate a honeycomb artifact synthesized image, and the training dataset is created by mapping the honeycomb artifact synthesized image as input data and the preprocessed raw image as output data.

Abstract: Disclosed is a noble metal-manganese oxide composite catalyst for a positive electrode of an aqueous rechargeable battery that can regenerate a solvent of an aqueous electrolyte. Also disclosed are a method for preparing the composite catalyst, a positive electrode for an aqueous rechargeable battery including the composite catalyst, and an aqueous rechargeable battery including the positive electrode. The composite catalyst can regenerate reaction products, including gases continuously generated from spontaneous corrosion of the electrodes or side reactions, back to water to prevent depletion of the electrolyte. Due to this ability, the composite catalyst improves the life characteristics of the battery and suppresses the occurrence of excessive overpotentials at the electrodes. Therefore, the use of the composite catalyst is effective in preventing the performance of the battery from deteriorating.

Abstract: According to a method and device for generating a head avatar using a shot video, a head mesh of neutral look and a head texture map of neutral look are generated based on a base mesh of a base model and at least one shooting image representing a face of neutral look among a plurality of shooting images generated from a camera shot video, and a head mesh reflecting a certain facial expression and a head texture reflecting the certain facial expression are generated based on at least one shooting image representing a face of a certain facial expression among the plurality of shooting images, the head mesh of neutral look, and the head texture map of neutral look.

Abstract: The present disclosure relates to a UV- and heat-curable ladder-like polysilsesquioxane copolymer and a method for preparing the same. Since a controlled functionality can be provided only on a desired region via a thiol-ene click reaction without an additional additive, an insulating layer having a low dielectric constant and a microcircuit pattern can be formed without an additional etching process.

Abstract: According to a main objective of the present invention, the three-dimensional arrangement of solar cells is adjusted so as to use sunlight directly coming from the sun mainly for solar power generation while transmitting wavelengths necessary for the growth of plants and reflecting wavelengths unnecessary for or hindering the growth of plants among wavelengths of sunlight passing through the solar cells to use the reflected wavelengths for additional solar power generation. Sunlight reflected by the dichroic optical filter may be used to additionally generate electricity using solar cells provided perpendicular to the dichroic optical filter, thereby maximizing the use efficiency of sunlight.

Abstract: Provided is a method for preventing, ameliorating, or treating inflammatory diseases by administering a composition containing extracellular vesicles (EVs) derived from Roseburia spp. strains and/or Bifidobacterium spp. strains, wherein the EVs exhibits effectiveness in improving inflammatory bowel disease (IBD), and additionally, all EVs derived from congeneric strains corresponding to Roseburia spp. strains or Bifidobacterium spp. strains. have been confirmed to exhibit strong anti-inflammatory effect, and the strains and EVs derived therefrom can be provided as a composition for preventing, ameliorating, or treating a variety of inflammatory diseases.

Abstract: The present invention relates to a heteroaryl derivative, a stereoisomer thereof, a hydrate thereof, a solvate thereof, or a pharmaceutically acceptable salt thereof, a method for preparing the same, and a pharmaceutical composition for preventing or treating cancer comprising the same as an active ingredient. The heteroaryl derivative of the present invention exhibits high inhibitory activity against overexpressed HER2, and thus, a pharmaceutical composition containing the same as an active ingredient can be usefully used for preventing or treating HER-2 positive cancer.

Abstract: A method of regenerating sodium borohydride includes: pretreating reactants including sodium tetraborate hydrate (Na2B4O7·xH2O, 0<x?10), a metal salt, and a reducing agent; and reacting the pretreated reactants by a ball-milling method, wherein the metal salt includes NaHCO2, KHCO2, LiHCO2, NaHCO3, Na2CO3, NaOH, KHCO3, K2CO3, LiHCO3, Li2CO3, Na2O2, NaH, or a combination thereof.

Abstract: The present invention relates to a porous particle composite for PCR, wherein the porous particle composite distributes photothermal nano-elements that generate heat by absorbing light in porous particles in which nucleic acid amplification occurs through temperature control so as not to adjust the temperature of the entire sample by using a hot plate or the like but to adjust the temperature inside the particles by irradiating light to the porous particles to allow nucleic acid amplification inside thereof, thereby reducing energy consumption and shortening diagnostic time.

Abstract: Disclosed is a disinfection robot capable of autonomous driving and recognition of a disinfection target. The disinfection robot includes: a recognition unit configured to generate recognition information by recognizing a surrounding environment of the disinfection robot; a movement unit configured to move a position of the disinfection robot; a light source unit configured to emit a light of a predetermined wavelength area for disinfection; an injection unit configured to inject a fluid for disinfection; and a control unit configured to move the disinfection robot through the movement unit based on the recognition information, wherein the control unit is configured to identify a disinfection target from the recognition information and control at least one of the light source unit and the injection unit to perform disinfection to at least one of the surrounding environment of the disinfection robot and the disinfection target.

Abstract: The tissue removal device using focused ultrasound includes a focused ultrasound output unit, a mode setting unit to set an output mode of the focused ultrasound, and a control unit to control output characteristics of the focused ultrasound according to the set mode, wherein the output mode is selected from a first mode for removing a tissue in a local area using a vapor bubble formed by the focused ultrasound, a second mode for removing a tissue in a narrower area than the first mode by controlling the output characteristics of the focused ultrasound immediately after the vapor bubble is formed by the focused ultrasound, and a third mode for obtaining a skin tightening effect by generating heating in a subcutaneous fat layer using focused ultrasound of lower intensity and a longer pulse length than the first mode and the second mode.

Abstract: Disclosed are a method of transmitting image data having a hybrid resolution and a method of generating a hybrid-resolution image. A main region of an original image is transmitted as a high-resolution image and the remaining regions are transmitted as a low-resolution background image. Accordingly, an amount of data to be transmitted is able to be reduced.

Abstract: Provided is a method of manufacturing a stretchable substrate having improved thickness deformation uniformity through control of a spatial crosslinking degree according to various embodiments of the present disclosure to implement the above object. The method includes forming a substrate part of an elastic material, forming an auxetic including a plurality of unit structures on the substrate part, and forming a fixing part on the substrate part on which the auxetic is formed, wherein the fixing part has a different vertical crosslinking density at each position.