Abstract: A host communicating with a key-value storage device includes a host memory that stores a computer program, and a host controller including a processor configured to execute the computer program. The computer program is configured to process a file or a directory related to file data received by an application stored in the host, and provide the file or the directory to the key-value storage device, map the file or the directory to a key-value object storable in the key-value storage device, translate a file operation requested by the application stored in the host into a key-value operation that is performable in the key-value storage device, manage a transaction related to the key-value object and the key-value operation and provide the transaction to the key-value storage device, and abstract the file or the directory into a meta-object or a data object.

Abstract: A device for conveying a biological material includes a body including an aperture configured to enable connection with an outside of the body and a chamber configured to store a biological material, a plurality of conveyors accommodated in the body and configured to convey the material, and a driver configured to select one of the plurality of conveyors, align the selected conveyor with the aperture, and move the selected conveyor to the outside of the body through the aperture.

Abstract: An electrode composed of a substrate including a graphene layer coated on a first metal; and a complex including a second metal deposited on the substrate and a hydroxide of the first metal, where the complex is in the form of core-shell in which the second metal is a core and the hydroxide of the first metal is a shell, and the second metal has a higher standard reduction potential than the first metal. The graphene-coated metal foam of the present invention is the first case that proves not only theoretically but also by experiment that the remarkable catalytic ability reducing other metals (Au, Pt, Ag, and Cu, etc.) with a higher reduction potential than the metal by graphene coated on the metal surface it electroless deposition without additional reductant or electrical reduction conditions is due to the electrical double layer or interfacial dipole induced between the graphene and the metal.

Abstract: Provided are an odorant receptor marker of microglia and a use thereof, and according to the odorant receptor marker of microglia and a use thereof according to one aspect, microglia may be detected by measuring an activity or expression level of a protein of an odorant receptor (OR) Olfr110 or Olfr111, and OR ligands of microglia may be selected using them, and an inhibitor or activator against the interaction between the OR and 2-pentylfuran is effectively used in treatment of a neuroinflammatory disease or meningitis.

Abstract: The present disclosure relates to a positioning network system, apparatus, and method using a mobile object, and more particularly, to a positioning network system, apparatus, and method using a mobile object, that are capable of improving positioning accuracy while reducing an amount of calculation for positioning by arranging a plurality of positioning nodes included in a positioning mobile object in a right angle direction, and also efficiently expanding a positionable region by using a plurality of positioning mobile objects or an intermediate mobile object.

Abstract: One example of the present invention provides a negative electrode material. Such a negative electrode material may comprise lithium titanium oxide-based particles and a graphene quantum dot coating layer doped with nitrogen that is positioned on the lithium titanium oxide-based particles.

Abstract: The present invention relates to a device for measuring grip strength including a basis; a cover coupled to the basis to form an enclosed pressure space separated from the outside; a cap disposed between the basis and the cover and configured to form a sensing space separated from the pressure space; magnets mounted on the cap or the basis to form a magnetic field; and a magnetic sensor for detecting change in the magnetic field. With this configuration, when measuring the grip strength of the user's hand, accuracy or sensitivity may be increased.

Abstract: A linear variable differential transformer includes: a moving portion having a shape extending in a direction of an axial line; a bobbin including a through hole formed such that the moving portion is movable in the direction of the axial line, an outer circumferential surface of the bobbin having a shape inclined symmetrically with respect to a center line thereof based on the direction of the axial line; a primary coil wound around the outer circumferential surface of the bobbin; and a secondary coil wound around the wound primary coil, a wound outer surface of the secondary coil having a shape parallel to the axial line.

Abstract: A hybrid wave computer that computes an inputted original signal as frequency information includes: an input module configured to separate a frequency of the original signal by detecting an oscillation of an piezoelectric element by each position as the original signal having an embedded frequency of several bands is transmitted in a form of acoustic waves on a substrate provided with the piezoelectric element; a calculation module including at least one vibration amplifier or vibration damper for receiving the frequency of the original signal separated in the input module and amplifying or attenuating a wave for each frequency band to calculate the inputted original signal in a frequency band; and a storage module configured to store binarized frequency information in the calculation module as digital information, so that the original signal is interfaced in a form of waves.

Abstract: The present invention relates to a composition for preventing or treating central nerve system diseases, and by means of a compound according to one aspect, by inhibiting the death of adult hippocampal neural stem cells caused by stress and preserving the number of neural stem cells, the composition can be utilized in the prevention, amelioration, or treatment of mental diseases or neurodegenerative diseases, or in the prevention or amelioration of stress.

Abstract: Disclosed are a spiral curve type music sheet in which different notes are displayed at different positions on a spiral curve based on the pitches of notes, and an apparatus and method for providing a spiral curve type music sheet. The apparatus for providing a spiral curve type music sheet may include a memory configured to store a spiral curve type music sheet in which different notes are displayed at different positions on a spiral curve based on the pitch of the note and note data, and a processor configured to determine the note symbol position related to the note data on the spiral curve in the spiral curve type music sheet based on the frequency of the note data.

Abstract: A series elastic actuator includes a first body, a motor, a pulley, a second body, a wire, a first adjuster, a second adjuster, a first spring, and a second spring. The wire is curved around a seat portion of the pulley, a first extending portion of the wire and the first adjuster are elastically supported with respect to the second body by the first spring, and the second extending portion of the wire and the second adjuster are elastically supported with respect to the second body by the second spring. When an external load is applied to the second body and relative rotation is generated between the pulley and the second body, a moment arm by the load is constant and the external load can be measured on the basis of the measured relative rotation angle and the spring constants of the first spring and the second spring.

Abstract: Provided is a solid electrolyte membrane including a porous frame including a metal or a polymer material, solid electrolyte particles covering both surfaces of the porous frame, and filling pores of the porous frame, and a binder between the solid electrolyte particles.

Abstract: Provided is a method of transmitting security information of a single-bit analog-to-digital converter (ADC) wiretap channel. In the method of transmitting the security information of the single-bit ADC channel, a transmitting terminal adds additive noise to a transmission signal and transmits the transmission signal, and a receiving terminal and a wiretap terminal which each include a single-bit ADC receive the transmission signal, wherein received information is processed so as not to be determined by the wiretap terminal. When intensity of additive noise of the receiving terminal is less than that of additive noise of the wiretap terminal, a binary phase-shift keying (BPSK) distribution is used, and when the intensity of the additive noise of the receiving terminal is greater than that of the additive noise of the wiretap terminal, a codebook is designed using an asymmetric BPSK distribution in which both of two message points have a positive value.

Abstract: A method of processing database queries according to an embodiment of the disclosure includes the steps of acquiring an input query of a database, generating a join graph consisting of vertexes corresponding to the tables of the database and edges corresponding to join information among the tables, dividing the join graph into a plurality of subgraphs, and for the input query, generating an execution plan of a target query including N-ary join operators by using the plurality of subgraphs, optimizing the execution plan of the target query based on a cost model, acquiring a table sort algorithm of the N-ary join operators included in the target query based on an available size of a GPU or CPU memory, determining a sort order of one or more join columns included in the tables of the N-ary join operators, and based on the sort order of the one or more join columns, performing an operation for the plurality of subgraphs.

Abstract: The present invention relates to a composition for preventing or treating a degenerative brain disease, comprising 2-pentylfuran or a solvate thereof, a stereoisomer thereof or a pharmaceutically acceptable salt thereof as an active ingredient.

Abstract: Disclosed herein is a recirculating programmable photonic circuit including a programmable optical coupler including two first programmable waveguides and configured to adjust optical coupling efficiency of an optical signal based on a vertical movement of one of the two first programmable waveguides, a phase shifter including a second programmable waveguide and configured to change a phase of the optical signal based on a horizontal movement of the second programmable waveguide with respect to the first programmable waveguides, a plurality of core cells connected to each of the programmable optical coupler and the phase shifter to form a predetermined shape, the core cells being selectively driven by moving the optical signal from the predetermined shape according to the optical coupling efficiency and the phase, and an actuator electrically connected to one side of each of the plurality of core cells and configured to control the vertical movement and the horizontal movement.

Abstract: A method of manufacturing an electronic device is provided. The method includes forming a stack structure by placing a to-be-peeled layer on a substrate, applying thermal shock to the stack structure, detaching the to-be-peeled layer from the substrate, and transferring the detached to-be-peeled layer to a target substrate.

Abstract: The present invention relates to a method for determining a decrease in the functions of the hippocampus by using the correlation between a micro RNA (miRNA) and an N-methyl-D-aspartate receptor (NMDAR), a method for inhibiting the decrease in the functions, and a method for screening for inhibitors of the decrease in the functions.

Abstract: A vehicle lamp including a light source, a glass disposed in front of the light source, a housing supporting the light source and the glass, and a thermoelectric element unit generating cold wind and hot wind. The thermoelectric element unit includes a first part connected to the first flow path and generating one of cold air and hot air, a second part connected to the second flow path and generating the other one of the cold air and the hot air, a body accommodating the first part and the second part and having an opening formed on an upper surface, and a fan configured to be disposed on the opening of the body and introduce the air in a direction from the upper surface to a lower surface of the body. The thermoelectric element unit is positioned on an upper end of an external rear surface of the housing.