Abstract: A ceria-carbon-sulfur (CeO2—C—S) composite including a ceria-carbon (CeO2—C) composite in which cylindrical carbon materials having ceria (CeO2) particles bonded to surfaces thereof are entangled and interconnected to each other in three dimensions; and sulfur introduced into at least a portion of an outer surface and an inside of the ceria-carbon composite, a method for preparing the same, and positive electrode for a lithium-sulfur battery and a lithium-sulfur battery including the same.

Abstract: The present invention provides zeolite hollow spheres in which zeolite crystals grow to form a framework of macropore through a hydrothermal crystallization process using the hydrophilic surface of a carbon sphere as a hard template, wherein the zeolite framework is an ordered, porous crystalline zeolite material with a number of channels or pores interconnected, which has pore structures including mesopores and micropores. The zeolite hollow spheres of the present invention can be used for various purposes such as catalysts and adsorbents.

Abstract: The present disclosure provides a basal ganglia-on-a-chip for screening therapeutic agents for brain and nervous system diseases and a method for fabricating the same. The present invention provides a method for screening therapeutic agents for dopamine-dependent brain and nervous system diseases by using a basal ganglia-on-a-chip. When the basal ganglia-on-a-chip of the present invention is used in the effect evaluation of therapeutic agents for brain and nervous system diseases, the effect evaluation of therapeutic candidate substances can be economically and promptly carried out compared with an existing technique.

Abstract: A 3-dimensional flash memory device and methods of fabricating and driving the same are provided. The device includes: a channel layer extending over a substrate in a first direction perpendicular to a surface of the substrate; an information storing layer extending along a sidewall of the channel layer in the first direction; control gates each surrounding the channel layer, with the information storing layer between the channel layer and the control gates; an insulating layer being between the control gates in the first direction and separating the control gates from each other; a fixed charge region disposed at an interface of the insulating layer and the information storing layer or in a portion of the information storing layer between the control gates in the first direction; and a doped region induced by the fixed charge region and disposed at a surface of the channel layer facing the fixed charge region.

Abstract: The present disclosure provides a video-based behavior recognition device, comprising a synthesized channel frame provision unit generating highlight information by comparing channel frames corresponding to the respective channels among a plurality of channels and synthesizing the channel frames and the highlight information to provide a synthesized channel frame, a neural network unit providing a middle frame on the basis of the synthesized channel frame and a multi-frame convolution neural network, and a behavior recognition result provision unit providing a behavior recognition result on the basis of the middle frame and a weighted value generated according to the middle frame, and a method operating thereof.

Abstract: A polymer blend membrane includes a polyether-based copolymer and a polyether polymerized in situ and has high permeability and high selectivity for carbon dioxide. In the polymer blend membrane, the free volume of the polyether-based copolymer is greatly increased, and the adsorption capacity for carbon dioxide is enhanced. Thus, it can have excellent mechanical properties and excellent permeability and selectivity for carbon dioxide.

Abstract: A communication terminal and a method of providing a unified natural language interface to the same are disclosed. The method includes: determining, when text information containing many characters is created, whether the text information conforms to one of preset grammatical constraints; extracting, when the text information conforms to one of the grammatical constraints, tokens of one or more of characters from the text information, and extracting, when the text information does not conform to one of the grammatical constraints, one or more characters having an attribute probability higher than a reference probability as a token; and analyzing the extracted tokens to determine a function to handle the extracted tokens, and executing the determined function based on the extracted tokens.

Abstract: Provided is a novel bacterial strain Bacteroides vulgatus MGM001 (Bacteroides vulgatus MGM001) and its use. The LPS from the strain of the subject matter has cytotoxicity weaker than the conventional ones and shows synergistic effect on the inhibition of biofilm formation when used in combination with LTA.

Abstract: Disclosed is a carbon dioxide absorbent and a carbon dioxide separation method using the same that greatly reduces energy consumption due to a small amount of latent heat required in regeneration of absorbents, enhances CO2 absorption rate, undergoes almost no thermal denaturation even at high temperatures while absorbing carbon dioxide, and results in a considerable reduction of the cost associated with absorption of carbon dioxide.

Abstract: A method for reporting channel state information (CSI) by user equipment (UE) for beamforming based on an antenna array in a wireless communication system according to an embodiment of the present disclosure includes: receiving a channel state information reference signal (CSI-RS); generating channel state information using the CSI-RS and a codebook generated in advance; and reporting the channel state information. The channel state information includes information related to a codevector determined in the codebook, the antenna array has a three-dimensional shape having omnidirectional symmetry, the codebook is generated based on a position of the UE having a center of the three-dimensional shape as an origin, and the position of the UE is represented based on a polar coordinate system.

Abstract: The present disclosure relates to technology that performs encrypted communication via a network or a bus, and a communication method using a security key between nodes connected via a network or a bus includes setting a critical cluster among multiple nodes, selecting a primary message shared between the set critical clusters, and encrypting a message using a key generated to be valid for a preset period to enable communication between the critical clusters, wherein each of the critical clusters stores the primary message for the preset period according to a same key generation scheme to generate a block, and generates and possesses a new key based on the generated block and a currently used key, so that information about a previous message and a previous key is sequentially accumulated in the new key.

Abstract: A titania-carbon-sulfur composite including a titania-carbon composite prepared by mixing cylindrical carbon materials and titania (TiO2-x), in which some oxygen is reduced (i.e., x is less than 2), to have a structure in which cylindrical carbon materials are entangled and interconnected in three dimensions; and sulfur introduced into at least a part of the external surface and inside of the titania-carbon (TiO2—C) composite, and a method for preparing the same.

Abstract: Provided is a microscopic specimen including a lower plate that includes a lower opening portion, an upper plate that covers the lower opening portion, a target material layer on the upper plate, a lower electrode layer between the upper plate and the target material layer, an upper electrode layer on the target material layer, and a wiring pattern electrically connected to each of the upper electrode layer and the lower electrode layer.

Abstract: In a method for operating a microscope, a lens unit transmits a first image laser to an object, and acquire a first scan image on the basis of a first reflection signal reflected from a first area included in the object. An ultrasound conversion unit transmits an ultrasound signal to the first area and focuses same so as to form air bubbles in the first area. The lens unit transmits a second image laser to the object, and can acquire a second scan image on the basis of a second reflection signal reflected from the second area included in the object. The ultrasound conversion unit transmits an ultrasound signal to the first area included in the object and focuses same so as to form air bubbles in the first area, thereby enabling an increase in the imageable depth of a microscope.

Abstract: The present disclosure relates to a search technology using a data structure for supporting multi-search in a blockchain-based IoT environment, and a method for providing a search function for blockchain includes receiving block data via a network, verifying transactions included in the received block data, and adding the block data as a node to an index tree of multidimensional index structures based on information about each transaction in the transaction verification.

Abstract: The present invention provides zeolite hollow spheres in which zeolite crystals grow to form a framework of macropore through a hydrothermal crystallization process using the hydrophilic surface of a carbon sphere as a hard template, wherein the zeolite framework is an ordered, porous crystalline zeolite material with a number of channels or pores interconnected, which has two independent pore structures including mesopores and micropores. The zeolite hollow spheres of the present invention can be used for various purposes such as catalysts and adsorbents.

Abstract: Disclosed is an image processing device. The image processing device includes an input unit, and a processor which retargets an image frame input through the input unit and acquires an output image frame, wherein the processor identifies an area, in which pixel values are to be padded, on the basis of the input image frame and information about the output image frame, identifies a first pixel block on the basis of a target pixel area included in the identified area, identifies a second pixel block on the basis of pixel values included in the first pixel block, and pads the target pixel area on the basis of pixel values included in the second pixel block, so as to able to acquire the output image frame.

Abstract: A beamforming device includes a sampler configured to sample a signal reflected from a focal point and received to a transducer array; a mixer configured to separate the sampled signal into an in-phase component signal and a quadrature component signal; a low pass filter configured to perform filtering on the in-phase component signal and the quadrature component signal; a decimator configured to perform decimation on the filtered in-phase component signal and quadrature component signal; a sampling delay compensator configured to compensate a sampling time delay based on a preset time delay resolution for the decimated in-phase component signal and quadrature component signal; a phase rotator configured to compensate a phase delay based on a preset phase resolution for the in-phase component signal and the quadrature component signal for which the sampling time delay is compensated; and a delay calculator configured to calculate a time delay resolution and the phase resolution, and to apply each to the sampl

Abstract: Provided are a nanocomposite body, a method of manufacturing the nanocomposite body, and a nanocomposite film including the nanocomposite body. The nanocomposite body includes: inorganic particles; a polymer matrix; and grafting polymer chains each of which includes a polyol structure, wherein the inorganic particles and the polymer matrix are linked by the grafting polymer chains.

Abstract: The present invention discloses a pump for measuring a pressure of fluid to be transferred, a fluid transport system using the same, and a method for operating the system. The pump includes a pumping portion alternately generating a positive pressure and a negative pressure; a first diaphragm which is provided on one side of the pumping portion and of which a shape is changed as the positive pressure and the negative pressure are alternately generated; a transport chamber which sucks and discharges a transport target fluid corresponding to the deformation of the first diaphragm; a second diaphragm which is provided on the other side of the pumping portion; a monitoring chamber which is provided on one side of the second diaphragm and of which a pressure changes corresponding to the deformation of the second diaphragm; and a pressure measuring portion measuring a pressure change of the monitoring chamber.