Abstract

The present disclosure provides an object cutting device for manufacturing a composite material including an arrangement unit configured to support an object at both sides, an upper cutting unit including an upper cutter configured to cut the object at an upper side, a lower cutting unit including a lower cutter configured to cut the object a lower side, and a collection unit configured to collect cut objects. According to embodiments of the present disclosure, it is possible to wind and unwind a connected object or positionally move an end thereof to prevent a reduction in a tensile force, thereby easily acquiring an object that is cut into more uniform lengths and enabling the mass production of the object.

IPC Classes  ?

• B26D 7/14 - Means for treating work or cutting member to facilitate cutting by tensioning the work
• B26D 7/08 - Means for treating work or cutting member to facilitate cutting
• B26D 7/26 - Means for mounting or adjusting the cutting memberMeans for adjusting the stroke of the cutting member
• B29B 15/08 - Pretreatment of the material to be shaped, not covered by groups of reinforcements or fillers

Abstract

Disclosed herein is an elevator landing control system according to various embodiments of the present disclosure for achieving the above-described objects. The elevator landing control system includes an upper frame provided in an upward direction of a cage and provided with a main rope connected thereto, a position adjusting device connecting the cage and the upper frame, and a sensor device configured to detect a landing error between a floor of the cage and a floor of a platform, wherein the position adjusting device may adjust a distance between the upper frame and the cage based on the landing error detected from the sensor device to correct a height of the cage.

IPC Classes  ?

• B66B 1/42 - Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings separate from the main drive

Abstract

The present invention relates to a twist tensile tester for a wire, which performs a tensile test by twisting the wire that is applied to a wearable robot and undergoes repeated compression and tension using a servomotor and a LVDT, wherein a tester frame (100) is installed, a servomotor (200) is installed at an upper side of an upper frame (110), a test jig (300) is installed between the upper frame (110) and a lower frame (130) for performing a twist tensile test for a wire, and the test jig (300) includes an upper wire fixture (310) coupled to a motor shaft (not shown) of the servomotor (200) and installed at a lower side of the upper frame (110), a lower wire fixture (320) installed vertically below the upper wire fixture (310), upper vertical driving support bars (330) installed below the lower wire fixture (320) and driven up and down an intermediate frame (120), and an upper and lower support bar frame (340) installed below the upper vertical driving support bars (330) and supporting an upper side of a lower vertical drive support bar (350).

IPC Classes  ?

• G01N 3/14 - Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by dead weight, e.g. pendulumInvestigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by spring tension
• G01N 3/22 - Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional forces
• G01N 3/04 - Chucks
• G01B 7/04 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
• G01L 5/04 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands

Abstract

A system and a method for training a neural network for removing a hair image included in a skin image are disclosed. In a training system, according to one embodiment, for removing a hair image included in a skin image through unsupervised learning based on a generative adversarial neural network including a hair removal neural network and an authenticity determination neural network implemented through a synthesis neural network, the hair removal neural network is configured to receive a skin image including hair so as to generate a hair-removed image from which a hair image has been removed, and the authenticity determination neural network can be configured to determine, on the basis of the hair-removed image and a comparative image, whether the hair-removed image is a fake image generated by means of the hair removal neural network.

IPC Classes  ?

• G06T 5/00 - Image enhancement or restoration
• G06T 7/00 - Image analysis
• G06N 20/00 - Machine learning

Abstract

Disclosed are: a companion animal skin diagnostic system for diagnosing a skin disease through a preprocessing procedure in which hair is removed from image data obtained by capturing an image of the skin of a companion animal; and an operation method thereof. The companion animal skin diagnostic system according to an embodiment comprises: a smart comb which includes a camara and generates image data by capturing an image of the skin of a companion animal through the camera; and a user terminal which receives image data from the smart comb and outputs, through an interface, the received image data and skin diagnosis data analyzed on the basis of the image data.

IPC Classes  ?

• A61B 5/00 - Measuring for diagnostic purposes Identification of persons
• A01K 13/00 - Devices for grooming or caring of animals, e.g. curry-combsFetlock ringsTail-holdersDevices for preventing crib-bitingWashing devicesProtection against weather conditions or insects
• A61N 5/06 - Radiation therapy using light
• G16H 50/20 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for computer-aided diagnosis, e.g. based on medical expert systems
• G16H 40/67 - ICT specially adapted for the management or administration of healthcare resources or facilitiesICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for remote operation

Abstract

A heater for an evaporator includes a heating wire and a support, and the heating wire includes a tunnel part that surrounds an outer surface of a container in which an organic material is accommodated and is coiled in a cylindrical shape, a flange part that is connected to an upper end of the tunnel part and has a spiral structure in which a radius increases in a plane direction, a first straight part extending downward from a lower end of the tunnel part, and a second straight part extending downward from a distal end of the flange part, and the support includes a ring part that supports a lower surface of the flange part, and a plurality of bars extending downward form the ring part.

IPC Classes  ?

• H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
• H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)

Abstract

The present invention relates to a fish farm parasite removal system including an ultrasonic-microbubble system and, more specifically, to a cleaning apparatus including the ultrasonic-microbubble system, the apparatus using ultrasonic waves and microbubbles such that parasites and fine materials to be removed can be removed, and having excellent detergency.

IPC Classes  ?

• A01K 63/04 - Arrangements for treating water specially adapted to receptacles for live fish
• E02B 15/10 - Devices for removing the material from the surface

Abstract

The present invention relates to a method for producing an article by using an additive manufacturing method including: (a) a step for producing an article or one or more layers by means of additive manufacturing (AM); and (b) a step for performing ultrasonic nanocrystalline surface modification (UNSM) on the surface of the article or the one or more layers, wherein a product having excellent friction and wear properties and significantly improved strength compared to articles using existing bulk materials can be manufactured at lower cost by applying an ultrasonic nanocrystalline surface modification (UNSM) technique to a layer or article manufactured using 3D printing.

IPC Classes  ?

• B22F 3/24 - After-treatment of workpieces or articles
• B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing

Abstract

The present invention relates to a method for manufacturing a semiconductor coating film by using magnetization, the method being capable of improving performance, over that of pre-magnetization, of a semiconductor by enhancing electron mobility of the semiconductor and lowering band gap energy, by using a process for magnetizing the semiconductor containing a ferromagnetic material. The present invention relates to the method for manufacturing the semiconductor coating film by using the magnetization, the manufactured coating film has lower band gap energy than a coating film, which do not pass through a magnetization step, such that semiconductor performance and photocatalytic performance are improved, and the improvement of power generation efficiency of a solar cell can be expected when an electrode for solar cell is manufactured by using the same method.

IPC Classes  ?

• H01L 31/0216 - Coatings
• H01L 31/0224 - Electrodes
• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
• H01L 43/12 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
• H01G 9/20 - Light-sensitive devices
• H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings

Abstract

The present invention relates to transparent α-SiAlON ceramics tri-doped with erbium, thulium, and holmium and a method for preparing the same. The ceramics are characterized in that upconversion occurs at at least one wavelength of 657 nm, 679 nm, and 805 nm when the ceramics are irradiated with light of 980 nm at room temperature. The observed hardness and fracture toughness of sintered α-SiAlON ceramics are higher than those of other commercial optically active polycrystalline transparent ceramics including YAG and Y2O3.

IPC Classes  ?

• C04B 41/50 - Coating or impregnating with inorganic materials
• C04B 35/645 - Pressure sintering

Abstract

The present invention relates to a visible light-responsive photocatalyst effective for eliminating algae and a preparation method therefor and, more particularly, to a visible light-responsive photocatalyst comprising nickel-doped bismuth vanadate (BiVO4) for the removal of algae, and a method for preparing the same. A nickel-doped bismuth vanadate photocatalyst of the present invention was observed to exhibit a more outstanding effect of eliminating algae than bismuth vanadate having no nickel dopants thereon and to be effective for degrading drug wastes such as ibuprofen.

IPC Classes  ?

• B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
• B01J 23/755 - Nickel
• B01J 23/18 - Arsenic, antimony or bismuth
• B01J 23/22 - Vanadium
• B01J 37/02 - Impregnation, coating or precipitation
• A01N 59/00 - Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
• B01J 37/04 - Mixing
• B01J 19/12 - Processes employing the direct application of electric or wave energy, or particle radiationApparatus therefor employing electromagnetic waves

Abstract

The present invention relates to a surface treatment method for performing heat treatment only with regard to a part of a large component, such as a crankshaft of a large diesel engine, a large gear, a bearing, a mold, or the like, the part being needed in view of the usage/function thereof, thereby improving the strength thereof. Conventional surface treatment methods using existing heat treatment and local heating technologies have a problem in connection with the limitation in that no consideration has been made regarding methods for endowing better mechanical characteristics by modifying the surface of the object together with hardness improvement and post-treatment for changing tensile residual stress formed in the surface of the object after heat treatment to compressive residual stress. In order to solve said problem, the present invention provides a surface treatment method using local heating and ultrasonic nanocrystal surface modification, the method being configured such that local heating and surface treatment processes can be performed as continuous processes by the same equipment by merging/combining a local heating technology and an ultrasonic nanocrystal surface modification (UNSM) technology, thereby improving all of the mechanical characteristics of the object, the performance thereof, and the life thereof.

IPC Classes  ?

• C21D 10/00 - Modifying the physical properties by methods other than heat treatment or deformation
• C22F 3/02 - Changing the physical structure of non-ferrous metals or alloys by special physical methods, e.g. treatment with neutrons by solidifying a melt controlled by supersonic waves or electric or magnetic fields

Abstract

The present invention relates to a low-friction member imitating shark skin and a manufacturing method therefor, the low-friction member implementing a structure similar to shark skin and having riblets by stacking, in layers, composite particles formed by attaching spherical particles on the surfaces of plate-shaped particles, and thus the low-friction member has excellent low-friction characteristics. The present invention comprises: a base plate; plate-shaped particles stacked in layers on the surface of the base plate in the form of scales; and a plurality of spherical metal lubricating particles having a size smaller than that of the plate-shaped particles, and coated on the surfaces of the plate-shaped particles, wherein the metal lubricating particles are arranged in the form of a bridge connecting the base plate and the plate-shaped particles, and the plate-shaped particles to each other.

IPC Classes  ?

• C25D 3/12 - ElectroplatingBaths therefor from solutions of nickel or cobalt
• C25D 5/18 - Electroplating using modulated, pulsed or reversing current
• C25D 5/20 - Electroplating using ultrasonics
• F01M 1/00 - Pressure lubrication
• C25D 13/22 - Servicing or operating
• C25D 15/00 - Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires
• F16N 15/00 - Lubrication with substances other than oil or greaseLubrication characterised by the use of particular lubricants in particular apparatus or conditions
• F16N 19/00 - Lubricant containers for use in lubricators or lubrication systems
• C10M 103/02 - CarbonGraphite
• C10M 103/04 - MetalsAlloys
• C10M 125/02 - CarbonGraphite
• C10M 125/26 - Compounds containing silicon or boron, e.g. silica, sand
• C10M 125/28 - Glass

Abstract

The present invention relates to a surface treatment method for treating the surfaces of machine parts such as a bearing, a gear, a shaft or a turbine, or the surfaces of molding tools such as a roll in a press mold, the steel industry, paper-manufacturing, and the semiconductor display industry. According to the present invention, in order to solve problems of: a conventional surface treatment method using existing thermal spray coating (TSC) technology in which post-processes for restoring an object fatigued by a coating operation and for modifying the surface thereof have not been considered at all; and the existing possibility of the occurrence of the generation of a non-uniform coating or porosity and a problem in the adhesive strength of a coating layer, provided is a surface treatment method using TSC and ultrasonic nanocrystal surface modification (UNSM), the method being configured so as to apply desired mechanical properties by performing TSC on an object and to modify the surface of the coating layer by performing UNSM, through the merging and convergence of the TSC technology and a UNSM technology, thereby applying more remarkable mechanical properties and, simultaneously, enabling all of mechanical properties, performance, and lifespan to be improved.

IPC Classes  ?

• C23C 4/12 - Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
• B29C 33/56 - CoatingsReleasing, lubricating or separating agents
• C23C 4/18 - After-treatment
• F16C 3/02 - ShaftsAxles

Abstract

The present invention relates to: transparent α-SiAlON ceramics having co-doped erbium and holmium or co-doped erbium and thulium; and a preparation method therefor. The ceramics have an infrared transmittance of 80% or more at a wavelength of 3,000 nm when the thickness of a molded product having co-doped erbium and thulium is 0.2 mm, and the observed hardness and fracture toughness of sintered α-SiAlON ceramics are higher than those of the other commercial optically active polycrystalline transparent ceramics including YAG and Y2O3.

IPC Classes  ?

• C04B 35/597 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides based on silicon oxynitrides
• C04B 35/645 - Pressure sintering

Abstract

The present invention relates to a wiring connector used during installation of an electronic column in vacuum equipment, more specifically to a connector for wiring together and fixing a feedthrough for outer wiring and electronic column in a vacuum chamber in which an electronic column is used. The connector comprises as basic elements a fixing part connected to the electronic column in a socket-like manner, flexible wiring and an elastic body.

IPC Classes  ?

• H01J 37/32 - Gas-filled discharge tubes
• H01J 37/18 - Vacuum locks
• H01J 37/147 - Arrangements for directing or deflecting the discharge along a desired path

Abstract

A method for preparing a sintered rare earth-based magnet using a melting point depression element and a sintered rare earth-based magnet prepared by the same are disclosed. The method for preparing a sintered rare earth-based magnet according to the present invention comprises the steps of: heating an R-Fe-B based magnet powder to a predefined temperature to produce a sintered magnet, wherein R is a rare earth element or a combination of rare earth elements; coating the surface of the produced sintered magnet with a coating solution prepared by mixing a heavy rare earth powder and a melting point depression element powder in a solvent; and heat-treating the coated sintered magnet.

IPC Classes  ?

• H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets

Abstract

Disclosed is an electrostatic quadrupole deflector for a microcolumn. The deflector includes an electron beam passage hole, deflecting electrodes to which a deflection voltage is applied, and floating electrodes to which the deflection voltage is not applied. The deflector is structurally stable and has a simple driving system. The deflector has good performance and characteristics.

IPC Classes  ?

• H01J 37/147 - Arrangements for directing or deflecting the discharge along a desired path
• H01J 37/073 - Electron guns using field emission, photo emission, or secondary emission electron sources
• H01J 37/26 - Electron or ion microscopesElectron- or ion-diffraction tubes
• H01J 9/02 - Manufacture of electrodes or electrode systems

Abstract

Disclosed is a micro-electron column including nanostructure tips each of which has a tubular, columnar, or blocky structure ranging in size from several nanometers to dozens of nanometers. In the micro-electron column, the nanostructure tips can easily emit electrons because a high electric field is generated at the end of the nanostructure tips when a voltage is applied to the nanostructure tips, and an induction electrode is disposed between the electron emitter and a source lens so as to help electrons emitted from the electron emitter to enter an aperture of a first lens electrode layer of the source lens, thereby realizing improved performance of the micro-electron column. In the micro-electron column, the size of the nanostructure tips may be larger than that of the aperture of a source lens.

IPC Classes  ?

• B82Y 10/00 - Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
• H01J 37/063 - Geometrical arrangement of electrodes for beam-forming
• H01J 37/147 - Arrangements for directing or deflecting the discharge along a desired path
• H01J 37/065 - Construction of guns or parts thereof
• H01J 37/073 - Electron guns using field emission, photo emission, or secondary emission electron sources

Abstract

The present invention relates to a method for producing a low friction member, the method enabling the formation of a graphene pattern having a regular or irregular shape by using a metal solid lubricant, thereby realizing a composite lubricant having the metal solid lubricant and graphene combined, thus enabling the increasing of a friction reduction effect therethrough. Such present invention comprises the steps of: dispersing and coating a metal solid lubricant on the surface of a base material; thermal processing so that the metal solid lubricant is fixed in a state of being coated on the surface of the base material; and growing graphene through CVD processing using the metal solid lubricant as a catalyst.

IPC Classes  ?

• B32B 9/00 - Layered products essentially comprising a particular substance not covered by groups
• B32B 3/10 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material
• B32B 37/24 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate

Abstract

The present invention relates to a low friction member having seaweed-type nanotubes, the nanotubes which protrude like seaweed on the surface of a base material being concentrated in the moving direction of a sliding member, thereby improving the fluidity of a liquid lubricant, thus enabling the effective reduction of surface friction. Such present invention comprises: a base material which has a plurality of dimples formed on the surface thereof so as to reduce friction occurring due to the surface contact of a sliding member; a fixing material which is filled inside the dimples; nanotubes which are buried in the fixing material and protrude to the outside by means of the surface processing of the fixing material; and a liquid lubricant which is coated on the surface of the base material, wherein, as the protruding nanotubes become concentrated in the moving direction of the sliding member, the fluidity of the liquid lubricant is improved, thereby enabling the effective reduction of surface friction.

IPC Classes  ?

• B32B 33/00 - Layered products characterised by particular properties or particular surface features, e.g. particular surface coatingsLayered products designed for particular purposes not covered by another single class
• F16C 33/10 - Construction relative to lubrication
• B32B 17/00 - Layered products essentially comprising sheet glass, or fibres of glass, slag or the like

Abstract

The present invention relates to a low-friction member imitating shark skin and a manufacturing method therefor, the low-friction member implementing a structure similar to shark skin and having riblets by stacking, in layers, composite particles formed by attaching spherical particles on the surfaces of plate-shaped particles, and thus the low friction member has excellent low-friction characteristics. The present invention comprises: a base plate; plate-shaped particles stacked in layers on the surface of the base plate in the form of scales; and a plurality of spherical metal lubricating particles having a size smaller than that of the plate-shaped particles, and coated on the surfaces of the plate-shaped particles, wherein the metal lubricating particles are arranged in the form of a bridge connecting the base plate and the plate-shaped particles, and the plate-shaped particles to each other.

IPC Classes  ?

• F16N 15/00 - Lubrication with substances other than oil or greaseLubrication characterised by the use of particular lubricants in particular apparatus or conditions
• F16N 19/00 - Lubricant containers for use in lubricators or lubrication systems

Abstract

The present invention relates to a method relieving the fatigue accumulated due to the repetition of mechanical contact, rotation, bending and the like of metal or alloy materials or mechanical parts such as shafts, gears or bearings so as to extend the lifespan of the corresponding part or materials. According to the present invention, provided is a method for relieving a fatigue lifespan by using nanoskins, comprising the steps of: classifying the kinds of objects for the metal or alloy materials or the mechanical parts such as shafts, gears or bearings; evaluating the structures and fatigue states of the objects by properly performing a nondestructive test such as an analysis method of a finite element method (FEM), residual stress measurement or fluorescence analysis for finding fine cracks of a surface layer, according to the kinds of classified objects; detecting the position, at which the fatigue is accumulated, on the basis of the evaluation result; and forming the nanoskin on the surface of the object by applying vibration energy to the detected position, at which the fatigue is accumulated, by using ultrasonic waves and the like, thereby modifying the surface of the object and relieving the accumulated fatigue by forming the nanoskin on the surface of the object, such that the fatigue lifespan and the overall lifespan of products can be extended.

IPC Classes  ?

• C23C 26/00 - Coating not provided for in groups
• G01N 21/88 - Investigating the presence of flaws, defects or contamination
• G01N 21/64 - FluorescencePhosphorescence

Abstract

An ultra-miniaturized electron optical microcolumn is provided. The electron optical microcolumn includes an electron-emitting source emitting electrons using a field emission principle, an extraction electrode causing the emission of electrons from the electron-emitting source, a focusing electrode to which voltage is flexibly applied in response to a working distance to a target for regulating a focusing force of electron beams emitted from the electron-emitting source, an acceleration electrode accelerating electrons emitted by the extraction electrode, a limit electrode regulating an amount and a size of electron beams using electrons accelerated by the acceleration electrode, and a deflector deflecting electron beams towards the target.

IPC Classes  ?

• H01J 29/46 - Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
• H01J 3/36 - Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration
• H01J 3/14 - Arrangements for focusing or reflecting ray or beam
• H01J 3/26 - Arrangements for deflecting ray or beam

Abstract

The present invention relates to a visible light sensitive photocatalyst and a method for manufacturing the same, and is characterized in that the visible light sensitive photocatalyst contains an erbium (Er3+)-doped bismuth vanadate (BiVO4) compound, the compound being prepared by a microwave hydrothermal synthesis method. The photocatalyst according to the present invention has band gap energy allowing absorption of visible light and thus exhibits high absorption efficiency of visible light, and has a small effective mass of charges and thus exhibits high charge transfer efficiency. In addition, the photocatalyst has valence and conduction band energy levels corresponding to potentials suitable for the decomposition of water and thus can have a high overvoltage to the oxidation of water. Therefore, the photocatalyst according to the present invention can be used as a highly efficient water decomposing photocatalyst with high efficiency.

IPC Classes  ?

• C01G 31/00 - Compounds of vanadium
• C01G 29/00 - Compounds of bismuth
• B01J 23/31 - Chromium, molybdenum or tungsten combined with bismuth
• B01J 19/12 - Processes employing the direct application of electric or wave energy, or particle radiationApparatus therefor employing electromagnetic waves

Abstract

Disclosed herein is a multi-particle beam column including electrode layer with eccentric apertures. The multi-particle beam column includes two or more particle beam columns each comprising a particle beam emission source, a deflector, and two or more electrode layers. The multi-particle beam column includes at least one electrode layer having one or more apertures that are eccentric from respective beam optical axes of the particle beam columns.

IPC Classes  ?

• G21K 5/00 - Irradiation devices
• G21K 1/08 - Deviation, concentration, or focusing of the beam by electric or magnetic means
• G21K 5/04 - Irradiation devices with beam-forming means

Abstract

The present invention relates to a low friction material for a car engine, which can promote car fuel reduction and engine life extension by significantly reducing surface friction and wearing by using a combined application of a plurality of dimples having optimal size and arranged at optimal spacing through laser patterning and a graphene layer coated thereon, and a method for manufacturing a low friction material for a car engine by using laser patterning. The method for manufacturing a low friction material for a car engine comprises: a laser patterning step for forming the plurality of dimples in a form in which the plurality of dimples are separated each other by irradiating a laser on a material surface so as to reduce surface friction occurring due to surface contact; a polishing step for polishing the surroundings of dimples formed in the laser patterning step; and a coating step for forming the graphene layer by coating graphene on the material surface after the polishing step.

IPC Classes  ?

• F02F 1/00 - CylindersCylinder heads
• B23K 26/00 - Working by laser beam, e.g. welding, cutting or boring
• C23C 16/26 - Deposition of carbon only

Abstract

Disclosed is a use of CabZIP which provides a plant with resistance to environmental stress. A plant transformed into CabZIP according to the present invention displays resistance to environmental stress, for example, a corn field, such that the plant can be effectively used in developing a plant having resistance to an environmental disaster.

IPC Classes  ?

• A01H 5/00 - Angiosperms, i.e. flowering plants, characterised by their plant partsAngiosperms characterised otherwise than by their botanic taxonomy
• C07K 14/415 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from plants
• C12N 15/29 - Genes encoding plant proteins, e.g. thaumatin
• C12N 15/82 - Vectors or expression systems specially adapted for eukaryotic hosts for plant cells

Abstract

The present invention relates to ceramics for a phosphor, the ceramics comprising a compound of the following chemical formula 1 and a rare earth oxide. [Chemical formula 1] MgxSi12-(m+n)Al(m+n)OnN16-n, where m=0.9, n=0.45, and 0.2≤x≤0.5.

IPC Classes  ?

• C04B 35/50 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare earth compounds
• C04B 35/645 - Pressure sintering

Abstract

The present invention relates to a dielectric nanocomposite material and to a method for manufacturing same and, more particularly, to a dielectric nanocomposite material having high dielectric breakdown characteristics and to a method for manufacturing same. The dielectric nanocomposite material of the present invention has increased interfacial adhesion strength due to the specific ratio of SiO2 and increases particle density so as to have greater dielectric breakdown strength.

IPC Classes  ?

• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• C08K 3/36 - Silica
• C08G 59/18 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
• H01B 3/40 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes epoxy resins

Abstract

The present invention discloses a method for remanufacturing bearings which uses a surface peening apparatus using an ultrasonic nanosurface reformer, a peening apparatus, or giant magnetostrictive materials to restore the tracks and balls or rollers of damaged or worn bearings in order to remove accumulated fatigue layers from the tracks and the balls or rollers and also to reform the surfaces at a nanostructural level so as to remanufacture bearings which are not inferior to new bearings in terms of longevity and performance. According to the present invention, the disclosed method for remanufacturing bearings comprises the steps of: preparation of a bearing to be remanufactured; initial processing of the surfaces of the track and the ball or roller of the prepared bearing according to the state of the surfaces; secondary processing using a surface peening apparatus using an ultrasonic nanosurface reformer, a peening apparatus, or giant magnetostrictive materials to reform the surfaces of the track and the ball or roller which have been initially processed; and readjustment of the gaps between the track and the ball or roller of the bearing which have undergone secondary processing, and assembly of the bearing.

IPC Classes  ?

• B23P 21/00 - Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
• B23P 9/00 - Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearingsFeatures of such surfaces not otherwise provided for, their treatment being unspecified
• F16C 43/00 - Assembling bearings
• F16C 33/00 - Parts of bearingsSpecial methods for making bearings or parts thereof

Abstract

A charge relay enhancer used in relaying a charge produced in a solar cell to a charger, and a solar cell system including the charge relay enhancer. The charge relay enhancer includes: a charge induction and pumping device inducing a charge by using a power voltage from among two power voltages of different polarities selected in response to a control signal, and pumping the induced charge; and a charge pathway selecting device relaying the charge input to an input terminal via two input/output terminals, to the charge induction and pumping device, receiving the charge pumped by the charge induction and pumping device via the two input/output terminals, and outputting the charge to an output terminal. Accordingly, as charges produced in a solar cell may be relayed to a charging device as much as possible, efficiency of relaying charges produced in the solar cell to the charging device may be maximized.

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• H02J 7/35 - Parallel operation in networks using both storage and other DC sources, e.g. providing buffering with light sensitive cells

Abstract

The present invention relates to a charge relay enhancer and to a solar cell system including the enhancer, and more particularly relates to a charge relay enhancer which is used in relaying the charge produced in a solar cell to a charger and relates to a solar cell system including the enhancer. According to the present invention, the charge relay enhancer and the solar cell system including the enhancer comprise: charge induction and pumping devices (120, 130) for inducing charge by using one power-source voltage from among two power-source voltages (V+, V-) of mutually different polarities selected in response to a control signal (CON), and for pumping the induced charge; and a charge-pathway-selecting device (110) for relaying the charges, which have been input at input terminals (In), to the charge induction and pumping devices (120, 130) via two input/output terminals (I/O1, I/O2), and for outputting the charges, which have been pumped at the charge induction and pumping devices (120, 130), to output terminals (Out) after respective receipt via the two input/output terminals (I/O1, I/O2).

IPC Classes  ?

• H02J 7/35 - Parallel operation in networks using both storage and other DC sources, e.g. providing buffering with light sensitive cells
• H02M 3/155 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

A stent fatigue testing apparatus according to the present invention comprises: a first mounting unit and a second mounting unit disposed separately from each other and mounted at both ends of a stent test piece; and a magnetostriction member (Terfenol-D) composed for generating vibrations using a strain of materials according to the change of an applied magnetic field to apply the vibrations to any one of the first mounting unit and the second mounting unit, thereby repetitively increase or decrease a distance between the first mounting unit and the second mounting unit. According to the present invention, it is possible to carry out acceleration test evaluation since the vibration frequency applied to the stent may be increased to several hertz (㎑), apply vibrations of various amplitudes to the stent even without any additional components for vibration amplification, simplify the stent fatigue test noticeably since any process for controlling resonance is not necessary, and carry out the stent fatigue test under the circumstances equal to immersion states into real blood.

IPC Classes  ?

• G01N 3/38 - Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by electromagnetic means
• G01R 31/02 - Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection
• G01B 7/16 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge

Abstract

According to the present invention, an ultra-high frequency fatigue-testing apparatus comprises: a first piezoelectric transducer provided at a region on one side of a test piece; a first amplifier horn connecting the first piezoelectric transducer to one end of the test piece, and amplifying vibrations generated by the first piezoelectric transducer and relaying the amplified vibrations to the test piece; a second piezoelectric transducer at a region on the other side of the test piece; and a second amplifier horn connecting the second piezoelectric transducer to the other end of the test piece, and amplifying vibrations generated by the second piezoelectric transducer and relaying the amplified vibrations to the test piece. According to the present invention, fatigue stresses are regularly applied to the test piece, thus improving fatigue-testing reliability.

IPC Classes  ?

• G01N 3/38 - Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by electromagnetic means
• G01M 7/02 - Vibration-testing

Abstract

The seat of the present invention comprises: a pair of hip bone loading portions formed by downwardly forming recesses or perforations in a hip bone portion of a seat; and a pair of side support portions formed into a laterally symmetrical linear or curved wing shape inclined from the side surfaces of a hip bone of a pelvis toward the hip joint connected to the femur. The seat of the present invention has a structure for guiding the pelvis of a user to the correct position, to thereby minimize pelvic distortion, prevent the hip bone area from being pressed, thus preventing pains in the hip bone, and support the periphery of the lower end of the pelvis to hold the pelvis by the repulsive force of the weight of the upper body of the user and to tighten the lower end of the hip of the user when the user sits on the seat.

IPC Classes  ?

• A61F 5/01 - Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces
• A47C 7/02 - Seat parts
• A47C 9/00 - Stools for specified purposes
• A61F 7/08 - Warming pads, pans or matsHot-water bottles
• A61H 23/00 - Percussion or vibration massage, e.g. using supersonic vibrationSuction-vibration massageMassage with moving diaphragms

Abstract

The present invention relates to a limited slip differential that includes a differential case that has a ring gear rotated by an input shaft; two side gears which are rotatably mounted in the differential case and are respectively connected to left/right axle shafts that are respectively connected with left/right wheels; pinion gears that are rotatably fitted to a pinion shaft fixed to the differential case and also rotate by engaging with the side gears; and a limiting means that limits differential action generated in the side gears and the differential case. According to the invention, even after the side gears and friction rings are assembled in face contact condition by pre-pressure of the spring, force for limiting differential action is adjustable according to the pressing amount of the spring, so that it has advantages that convenience in use can be conꂌ siderably improved and noise is also largely reduced by applying surface treatment of nano layer of dimple structure on friction surfaces for improving durability and reducing noise.

IPC Classes  ?

• F16H 48/20 - Arrangements for suppressing or influencing the differential action, e.g. locking devices