Abstract: Disclosed herein is an untact DC electric-field sensor having improved sensitivity. The untact DC electric-field sensor has a circuit composed of a variable capacitor and an RF generator and improves sensitivity through resonance of the circuit by connecting an inductor to the sensor.

Abstract: The present invention relates to a method for preparing an alkali metal ion conductive chalcogenide-based solid electrolyte, a solid electrolyte prepared thereby, and an all-solid-state battery comprising the same.

Abstract: The present invention relates to a multi-band optical filtering method and apparatus and to a multi-band optical filtering method and apparatus capable of filtering wavelengths of two or more bands in order to create a multi-wavelength image of a subject. In the present invention, the optical filtering apparatus for creating a multi-wavelength image of a subject comprises a filter unit having a plurality of sub filter units comprising a first sub filter unit through which a first wavelength band passes and a second sub filter unit through which a second wavelength band, which is different from the first wavelength band, passes, wherein while the light generated in a light source passes through the filter unit, the filter unit filters the light such that an intensity of the first wavelength band is dominant in a first region, and an intensity of the second wavelength band is dominant in a second region.

Abstract: The present invention relates to a method for preparing a perfluorodialkyl ether, comprising the steps of: (A) preparing a perfluorodialkyl ether from a compound represented by Formula 1 in the presence of a metal fluoride; and (B) isolating the perfluorodialkyl ether, and to an apparatus for preparing perfluorodialkyl ether, comprising: a reactor for preparing a perfluorodialkyl ether from a compound represented by Formula 1 in the presence of a metal fluoride; a reactant supplier for introducing the compound represented by Formula 1 into the reactor; and a discharge unit for discharging the perfluorodialkyl ether from the upper portion of the reactor.

Abstract: The objective of the present invention is to provide a temperature discretization digital device capable of achieving thermalBIT, which controls the characteristic of bifurcation of a temperature solution of a thermoelectric heat equation by adjusting an internal calorific value control parameter such as a current/voltage/thermoelectric property coefficient, so as to cause numbers 0 and 1 to correspond to the numerical range of a temperature solution. To this end, the present invention comprises a thermalBIT solution realizing material having a multi-temperature solution in a medium-sized current or voltage area, controls the characteristic of bifurcation of a temperature solution of a thermoelectric heat equation by adjusting an internal calorific value control parameter; and causes numbers 0 and 1 to correspond to the numerical range of a multi-temperature solution so that thermalBIT is realized.

Abstract: Disclosed is a rapidly rechargeable lithium secondary battery. The present invention provides a negative electrode for a lithium secondary battery, the negative electrode being characterized by including: a current collector; a negative electrode material layer which is formed on the current collector and includes negative electrode active material particles, conductive material particles, and a binder; and a surface layer which is formed on the surface of the negative electrode material layer, is formed of insulating particles that are inert with respect to lithium, and partially shields the negative electrode material layer. According to the present invention, a negative electrode for a lithium secondary battery having a high charging speed without lifetime degradation can be provided.

Abstract: The present invention relates to silver ink for printing a three dimensional microstructure and a 3D printing method using the same. The present invention provides a method for printing a 3-dimensional silver structure pattern, the method including: a step of providing a nozzle with liquid ink including capped silver nanoparticles and exhibiting Newtonian fluid behavior; a step of forming, at a predetermined point on a substrate, a meniscus of the liquid ink with ink extruded from the nozzle; a step of allowing the ink of the nozzle to be extruded by means of the surface tension of the meniscus while moving the nozzle along a path in a direction perpendicular to the substrate, in a direction parallel to the substrate, or according to a combination of said directions; and a step of forming a silver structure pattern corresponding to the movement path of the nozzle by evaporating a solvent from the extruded ink from the region closer to the substrate.

Abstract: The present invention relates to an anode active material, a nonaqueous lithium secondary battery comprising the same, and a preparation method therefor, and the purpose of the present invention is to improve high-rate charging characteristics without deterioration of charging and discharging efficiency and lifetime characteristics when applying an amorphous carbon coating layer as the anode active material of the nonaqueous lithium secondary battery, wherein the amorphous carbon coating layer comprising MoPx particles composed of MoP and MoP2 is formed on the surface of a carbon-based material, thereby reducing resistance when intercalating lithium ions into the surface of the carbon-based material, and improving reactivity and structural stability of the surface. The anode active material according to the present invention comprises a carbon-based material, and an amorphous carbon coating layer comprising MoPx particles composed of MoP and MoP2 formed on the surface of the carbon-based material.

Abstract: A method of manufacturing a carbon nanotube (CNT) composite material structure is provided. The method includes providing ink, in which a CNT composite material including a CNT and a rheological modifier is dispersed, to a nozzle, positioning the nozzle at a predetermined point on a substrate, and moving the nozzle along a predetermined path on the substrate while discharging the ink from the nozzle by surface tension of a meniscus formed at a leading end of the nozzle and printing a CNT composite material pattern corresponding to a movement path of the nozzle. In printing the CNT composite material pattern, the pattern is stacked as the CNT composite material by evaporation of a solvent within a meniscus formed by the ink extruded from the nozzle between the nozzle and the substrate.

Abstract: The present invention relates to a stacking structure of a superconducting wire. The present invention provides a superconducting wire in which a metal substrate, a buffer layer, a superconducting layer, and a stabilizing layer are stacked, the superconducting wire including: a plurality of wedges which penetrates through the superconducting layer and the buffer layer to connect the stabilizing layer and the metal substrate. According to the present invention, it is possible to provide the superconducting wire of which mechanical strength is improved to have high resistance against to deterioration or delamination. Further, the present invention may provide the superconducting wire which is self-protectable against a quench phenomenon. Further, the present invention may provide the superconducting wire which is suitable for application of a high magnetic field.

Abstract: The present invention relates to a permanent magnet electrical machine, and more particularly, to a permanent magnet electrical machine for reducing a detent force, the machine being capable of reducing a detent force by arranging a plurality of movers having the same teeth at predetermined intervals. In addition, according to the present invention, the permanent magnet electrical machine comprising a stator and a plurality of movers configured to perform linear motion, curvilinear motion, or rotary motion with respect to the stator is provided.

Abstract: The present invention relates to a breast cancer diagnosis device. More particularly, the present invention relates to a breast cancer diagnosis device for early detection of the presence or absence of breast cancer lesions inside the breast of a diagnosis subject. The breast cancer diagnosis device includes: an X-ray diagnosis unit generating an X-ray image of a diagnosis subject; an optical diagnosis unit generating an optical transmission image of the diagnosis subject; and a transfer unit which is coupled to the X-ray diagnosis unit and the optical diagnosis unit to transfer all or part of the X-ray diagnosis unit and the optical diagnosis unit, and sequentially transfer all or part of the X-ray diagnosis unit or the optical diagnosis unit toward the diagnosis subject.

Abstract: The present invention relates to a method for removing data frame redundancy in a network environment and a device for carrying out the method, which can comprise: a data frame reception step of receiving a first data frame from an adjacent node; and a redundant frame determination step of determining whether a reception completion indicator of a second data frame having the same identification information as the first data frame exists, on the basis of a preset redundancy check table, and processing the first data frame according to the determination result. Disclosed is the data frame redundancy removal method, which deletes the first data frame when the reception completion indicator of the second data frame having the same identification information as the first data frame exists in the redundancy check table.

Abstract: The present invention relates to a superconducting coil having a structure in which an insulation layer electrically insulates the space between adjacent wound wires. The present invention provides a superconducting coil in which superconducting wires extended at a predetermined width in a lengthwise direction are stacked and wound, the superconducting coil comprising a metal-insulator transition (MIT) material layer interposed so as to electrically insulate space between adjacent superconducting wires in the stacking direction of the superconducting wires. According to the present invention, provided is a superconducting coil having high stability, and easily controlling electromagnetic properties including response properties and having a self-protective function against a quench phenomenon and the like during the driving of a magnet.

Abstract: The present invention relates to a battery charging system using wireless power transmission, including a charging power supply device that comprises: a power supply unit that supplies power for wireless power transmission; a power transmission unit that comprises at least one power transmission coil and wirelessly transmits power for charging a battery; and a transmission impedance matching unit that matches the impedance between the power supply unit and the power transmission unit; and a battery charging device that receives power wirelessly transmitted from the charging power supply device through power reception coils individually corresponding to one or more batteries and charges the batteries. According to the present invention, a plurality of unit batteries can be simultaneously charged by one charging power supply device, that is, one transmission module. With this advantage, a plurality of battery cells can be simultaneously charged wirelessly without wires, and quick charging is also possible.

Abstract: The microwave heating apparatus of the present invention enables microwaves to be propagated onto an object to be heated through a waveguide such that the microwaves propagate to a microwave space reduced by a wavelength controller which is arranged, as a solid-state object, to occupy a predetermined space in the waveguide. Thus, the microwave heating apparatus of the present invention heats the object to be heated which has been placed in the reduced space. The microwave heating apparatus of the present invention utilizes the effects of lengthening the wavelength of the microwaves propagating to the reduced space so as to be longer than the wavelength before entering the reduced space by a predetermined multiple depending on a near-cutoff condition.

Abstract: Provided is a low-temperature superconducting wire having a low stabilizing matrix ratio. The present invention provides a superconducting wire including: a low-temperature superconducting filament; a stabilizing Matrix encompassing the filament; and a sheath of a Metal-Insulator Transition (MIT) material, which encompasses the stabilizing matrix on the exterior of the stabilizing matrix. According to the present invention, a low stabilizing matrix ratio is achieved while coping with heat caused by a quench phenomenon, thereby reducing manufacturing cost and achieving a high current density.

Abstract: The present invention relates to a method for removing data frame redundancy in a network environment and a device for carrying out the method, which can comprise: a data frame reception step of receiving a first data frame from an adjacent node; and a redundant frame determination step of determining whether a reception completion indicator of a second data frame having the same identification information as the first data frame exists, on the basis of a preset redundancy check table, and processing the first data frame according to the determination result. Disclosed is the data frame redundancy removal method, which deletes the first data frame when the reception completion indicator of the second data frame having the same identification information as the first data frame exists in the redundancy check table.

Abstract: A method for manufacturing a conductive film, the method comprising the steps of: preparing a mixture liquid in which a catalytic metal is dispersed in a precursor or a precursor compound of a two-dimensional nanomaterial; and forming a catalytic metal/two-dimensional nanomaterial by irradiating the mixture liquid with ultrasonic waves to generate microbubbles, degrading the precursor compound using energy, which is generated when the microbubbles burst, to synthesize the two-dimensional nanomaterial on an outer wall of the catalytic metal, wherein the method further comprises: dispersing the catalytic metal/two-dimensional nanomaterial in a dispersion to prepare ink; and applying the ink on a substrate and performing rapid air-sintering. Thus, the two-dimensional nanomaterial is synthesized on an outer wall of a non-noble metal having high oxidative characteristics, thereby preventing oxidation of the metal from air and increasing thermal conductivity and electrical conductivity.

Abstract: Disclosed is a method of printing a CNT 3D structure. The present invention provides a method of manufacturing a CNT composite material structure, the method including: providing ink, in which a carbon nanotube (CNT) composite material including a CNT and a rheological modifier is dispersed, to a nozzle; positioning the nozzle at a predetermined point on a substrate; and moving the nozzle along a predetermined path on the substrate while discharging the ink from the nozzle and printing a CNT composite material pattern corresponding to a movement path of the nozzle, in which in the printing of the CNT composite material pattern, the pattern is stacked as the CNT composite material by evaporation of a solvent within a meniscus formed by the ink extruded from the nozzle between the nozzle and the substrate.