Abstract

The present invention relates to a method for detecting a defective tire using 3D image data. The method may comprise the steps of: a) detecting a tire area from 3D image data of the surface of the tire; b) converting the detected tire area to normalized image data; c) acquiring a training result for vent spew area detection by training a YOLO detector on the normalized image data; and d) detecting a vent spew area in a 3D image of the tire by using the training result in step c).

IPC Classes  ?

• G01N 21/88 - Investigating the presence of flaws, defects or contamination
• G01N 21/95 - Investigating the presence of flaws, defects or contamination characterised by the material or shape of the object to be examined
• G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
• G01M 17/02 - Tyres
• G06T 7/00 - Image analysis
• G06T 17/30 - Surface description, e.g. polynomial surface description
• G06N 3/08 - Learning methods
• B60C 25/00 - Apparatus or tools adapted for mounting, removing or inspecting tyres

Abstract

Disclosed are a device and a method for controlling the thrust ripple of a linear transport system including a magnet plate and a coil, or a stator and a mover that are equipped with a coil and a magnet plate, respectively. The control device comprises: a position controller for controlling a position of a mover on the basis of a position command; a thrust ripple compensator that provides a thrust ripple compensation signal on the basis of predetermined thrust ripple compensation data; a compensated thrust command generator that generates a compensated thrust command on the basis of an output signal of the position controller and the thrust ripple compensation signal; and a current controller that generates a voltage command for controlling the current of a coil on the basis of the compensated thrust command.

IPC Classes  ?

• B65G 43/08 - Control devices operated by article or material being fed, conveyed, or discharged
• B65G 54/02 - Non-mechanical conveyors not otherwise provided for electrostatic, electric, or magnetic
• H02P 25/064 - Linear motors of the synchronous type
• H02P 6/10 - Arrangements for controlling torque ripple, e.g. providing reduced torque ripple

Abstract

The present invention relates to a nondestructive inspection method with respect to a special steel pipe used for reinforcing ground and, more specifically, to a steel pipe inspection system using a sound signal, wherein a sound is provided to a steel pipe so as to determine whether the steel pipe is defective by detecting a sound passing through the steel pipe. Considering that main defects of a steel pipe are caused by porosity or cracks due to poor welding, and poor pipe manufacturing, a conventional pipe inspection method has been generally performed by visual inspection with respect to some samples. However, in reality, it is difficult to visually identify, and in particular, it is difficult to inspect all the manufactured products with naked eyes. Therefore, a total inspection method employing a nondestructive inspection method is needed. The present invention provides a steel pipe inspection system using a sound signal, which can generate a sound having a determined frequency and amplitude with respect to a steel pipe, detect a sound transferred through the steel pipe, contrast detected information with acoustic analysis information learned according to steel pipe defects so as to determine whether the steel pipe is defective or not.

IPC Classes  ?

• G01N 29/04 - Analysing solids
• G01N 29/12 - Analysing solids by measuring frequency or resonance of acoustic waves
• G01N 29/265 - Arrangements for orientation or scanning by moving the sensor relative to a stationary material
• G01N 29/34 - Generating the ultrasonic, sonic or infrasonic waves
• G01N 29/36 - Detecting the response signal
• G01N 29/44 - Processing the detected response signal
• G06N 3/08 - Learning methods
• G08C 17/02 - Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link

Abstract

The present invention relates to an anode having a multilayer structure and a secondary battery comprising same. The anode having a multilayer structure, according to an embodiment of the present invention, comprises: a current collector; a first layer formed on one surface or both surfaces of the current collector and comprising a first anode active material, a first binder, and a conductive material; and a second layer formed on the first layer and comprising a second anode active material and a second binder.

IPC Classes  ?

• H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
• H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to an apparatus for manufacturing a pre-oxidized porous metal thin film, a method for manufacturing a porous metal oxide thin film, and the porous metal oxide thin film manufactured thereby. An apparatus for manufacturing a pre-oxidized porous metal thin film, according to one embodiment of the present invention, comprises: an upper chamber including a first region; a lower chamber including a second region; a metal plate which is positioned at a connecting point between the upper chamber and the lower chamber, and which has at least one hole allowing metal particles coming out from a target to pass therethrough; a jig for supporting a substrate in the second region; and an oxygen gas ring formed between the metal plate and the jig.

IPC Classes  ?

• C23C 14/00 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
• C23C 14/08 - Oxides
• C23C 14/58 - After-treatment
• C23C 14/34 - Sputtering
• C23C 14/35 - Sputtering by application of a magnetic field, e.g. magnetron sputtering
• C23C 14/56 - Apparatus specially adapted for continuous coatingArrangements for maintaining the vacuum, e.g. vacuum locks
• C23C 14/22 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating

Abstract

3). Through such a method, a process is simplified and the cost is lowered when large-area/large-diameter single crystal diamond is heterogeneously grown, stress due to differences in a lattice constant and a coefficient of thermal expansion between the heterogeneous substrate and diamond is relieved, and an occurrence of defects or cracks is reduced even when a temperature drops, such that a high-quality single crystal diamond substrate may be manufactured and the diamond substrate may be easily self-separated from the heterogeneous substrate.

IPC Classes  ?

• H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof

Abstract

An optical refractive index sensor according to one embodiment comprises: an optical module; a fiber optic cable connected to the optical module; and a plurality of gratings attached to the cross-section of an end of the fiber optic cable, wherein the refractive index of an object to be measured can be measured inside the object to be measured, by using the reflectivity of light reflected via the gratings.

IPC Classes  ?

• G01N 21/41 - RefractivityPhase-affecting properties, e.g. optical path length
• G01J 1/08 - Arrangements of light sources specially adapted for photometry
• G01N 21/43 - RefractivityPhase-affecting properties, e.g. optical path length by measuring critical angle
• G01J 1/04 - Optical or mechanical part

Abstract

y1-yx1-xx1-x1-xN barrier layer has a gate electrode, a source electrode and a drain electrode formed on the upper portion thereof, the gate electrode is disposed between the source electrode and the drain electrode, x and y satisfy 0≤y

IPC Classes  ?

• H01L 31/0304 - Inorganic materials including, apart from doping materials or other impurities, only AIIIBV compounds
• H01L 31/109 - Devices sensitive to infrared, visible or ultraviolet radiation characterised by only one potential barrier or surface barrier the potential barrier being of the PN heterojunction type
• H01L 31/0735 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier the potential barriers being only of the PN heterojunction type comprising only AIIIBV compound semiconductors, e.g. GaAs/AlGaAs or InP/GaInAs solar cells

Abstract

A linear transfer system and a control method therefor are disclosed. The control method for a linear transfer system according to the present invention comprises the steps of: having a rotor on a conveyor move by a first torque generated from a motor in response to an input position command wherein a plurality of stators are installed in the conveyor; identifying, from among the plurality of stators, an overlapping stator at least partially overlapping the rotor according to the movement of the rotor; changing a torque constant value used in generating the first torque according to the area of the region in which the rotor and the overlapping stator overlap; and driving the motor using the changed torque constant value to generate a second torque for moving the rotor.

IPC Classes  ?

• B65G 54/02 - Non-mechanical conveyors not otherwise provided for electrostatic, electric, or magnetic
• B65G 43/08 - Control devices operated by article or material being fed, conveyed, or discharged
• H02K 41/035 - DC motorsUnipolar motors
• H02P 6/16 - Circuit arrangements for detecting position
• H02P 6/28 - Arrangements for controlling current
• H02P 25/06 - Linear motors

Abstract

The present invention provides an ultrasonic sensor comprising: a sensor die including a sensing unit in which a plurality of nano-rods having a piezoelectric effect are arrayed to sense a user's fingerprint, a first electrode that is in electrical contact with the nano-rods along a line of the nano-rods in a first axial direction so as to form one surface of the sensing unit, a second electrode that is in electrical contact with the nano-rods along a line of the nano-rods in a second axial direction so as to form the other surface of the sensing unit, a first flip-chip electrode that is in electrical contact with one end of the first electrode so as to integrally distribute an electrical signal to the nano-rods located in the line in the first axial direction, and a second flip-chip electrode that is in electrical contact with one end of the second electrode so as to integrally distribute an electrical signal to the nano-rods located in the line in the second axial direction; and an ultrasonic sensor substrate having solder balls formed at one end or the other end of the first axis in the line in the first axial direction of the arrayed nano-rods so as to be in contact with the first flip-chip electrode and solder balls formed at one end or the other end of the second axis in the line in the second axial direction of the nano-rods so as to be in contact with the second flip-chip electrode, wherein the solder balls bonded to the sensor die is provided in a number equal to or less than half of the number of the arrayed nano-rods, wherein the sensor die is flip-chip bonded to the ultrasonic sensor substrate.

IPC Classes  ?

• H01L 23/498 - Leads on insulating substrates
• H01L 23/00 - Details of semiconductor or other solid state devices
• H01L 27/20 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including magnetostrictive components
• H01L 23/66 - High-frequency adaptations
• H01L 23/528 - Layout of the interconnection structure
• H01L 23/58 - Structural electrical arrangements for semiconductor devices not otherwise provided for
• H01L 41/113 - Piezo-electric or electrostrictive elements with mechanical input and electrical output
• H01L 41/09 - Piezo-electric or electrostrictive elements with electrical input and mechanical output

Abstract

The present invention provides a light-emitting diode comprising: a substrate; an n-type semiconductor layer on the substrate; a first active layer and a second active layer disposed to be spaced apart from each other on the n-type semiconductor layer; a first p-type semiconductor layer on the first active layer; a second p-type semiconductor layer on the second active layer; a first transparent electrode on the first p-type semiconductor layer; a second transparent electrode on the second p-type semiconductor layer; a plurality of first p-type electrodes on the first transparent electrode; and a second p-type electrode on the second transparent electrode, wherein the light-emitting diode comprises a plurality of breakdown induced conductive channels that are broken down by applying a bias greater than or equal to a negative threshold bias.

IPC Classes  ?

• H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
• H01L 33/20 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
• H01L 27/15 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier, specially adapted for light emission
• H01L 33/42 - Transparent materials

Abstract

The present invention relates to a method of manufacturing an AlN-based transistor. An AlN-based high electron mobility transistor (HEMT) element according to the present invention may use an AlN buffer layer, and include an AlGaN composition change layer inserted into a GaN/AlN interface to remove or suppress a degree of generation of a two-dimensional hole gas (2DHG), thereby decreasing an influence of a coulomb drag on a two-dimensional electron gas (2DEG) layer and improving mobility of a two-dimensional electron gas (2DEG).

IPC Classes  ?

• H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
• H01L 29/20 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
• H01L 29/66 - Types of semiconductor device
• H01L 29/778 - Field-effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT

Abstract

The present invention relates to an artificial neural network-based electricity market price prediction method and apparatus, and the electricity market price prediction method may comprise the steps of: collecting electricity transaction data from a database; processing the collected data into a state that can be input to an artificial neural network; performing learning of the artificial neural network with the processed data; and predicting a system marginal price (SMP) by using the learned artificial neural network. According to the present invention, it is possible to predict the system marginal price (SMP) of a day-ahead market and/or a real-time market through the learned artificial neural network.

IPC Classes  ?

• G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
• G06Q 50/06 - Energy or water supply
• G06N 3/08 - Learning methods

Abstract

A vehicle key capable of generating electrical energy by itself through energy harvesting, and a method of manufacturing the vehicle key are provided. The vehicle key includes a power generator including an energy generation module configured to generate electrical energy using energy harvesting and an electric condenser configured to store the generated electrical energy; an inputter configured to receive a user input; a communicator configured to communicate with the vehicle; and a controller configured to control the communicator to transmit a control signal corresponding to the received user input to the vehicle. At least one of the inputter, the communicator, and the controller may be configured to receive power from the power generator.

IPC Classes  ?

• B60R 25/40 - Features of the power supply for the anti-theft system, e.g. anti-theft batteries, back-up power supply or means to save battery power
• H02N 1/08 - Influence generators with conductive charge carrier, i.e. capacitor machines
• B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
• B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate
• B60R 25/24 - Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user

Abstract

The present invention relates to a method and a device for analyzing the operating cost of an electric power system. An analysis method according to one embodiment of the present invention comprises the steps of: collecting power generation information for each generator included in an electric power system and characteristic information about facilities of generators; grouping the generators included in the electric power system according to the type of fuel on the basis of fuel prices; linearizing nonlinear variables included in the collected information on the basis of constraints on reserve capacity of the generators, and determining a reserve distribution amount for each group of generators; and determining an annual operating cost of the entire electric power system on the basis of the determined reserve distribution amount by using an objective function for an economic analysis of the generators included in the electric power system.

IPC Classes  ?

• G06Q 50/06 - Energy or water supply
• G06F 17/18 - Complex mathematical operations for evaluating statistical data

Abstract

The present invention relates to a microgrid operation method and apparatus capable of providing flexibility for an operation of large-scale electric power system. An operation method according to one embodiment of the present invention comprises the steps of: collecting characteristic information of facilities in a microgrid and transaction information between the microgrid and a large-scale electric power system; determining ramping capability on the basis of information collected in consideration of the facilities in the microgrid; and determining an operating cost of the microgrid on the basis of an objective function for participation in a ramping capability market of the microgrid.

IPC Classes  ?

• H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers

Abstract

In order to achieve the purpose, the present invention relates to an electric assist module provided on a wheelchair frame in which a seating portion on which a passenger sits is provided on a frame forming a footrest and handles, and driving wheels are provided on both sides of the frame. The electric assist module comprises: a caterpillar unit mounted on the wheelchair frame to move the wheelchair frame up stairs or steps, as a continuous track type driving member provided with a plurality of wheels and a chain belt for rotating the wheels; and a landing gear part, provided in the caterpillar part, for raising/lowering free ends forward/rearward of the center of gravity of the wheelchair frame, such that, when one end of the landing gear part is raised, the caterpillar unit contacts stairs or a stepped surface by being raised and then the steps are climbed by the driving of the caterpillar unit in order to raise the wheelchair frame over the stairs or the slope of the steps without an assistant.

IPC Classes  ?

• A61G 5/06 - Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle-mounting facilities, e.g. for climbing stairs
• A61G 5/04 - Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven

Abstract

The present invention provides an electric power assist system provided in a wheelchair frame, in which a seat part on which a rider sits is provided on a frame having a footrest and a handle, and driving wheels are provided on both sides of the frame. The electric power assist system is characterized by comprising: a caterpillar part in the form of an endless track-type traveling member which is mounted to the wheelchair frame to allow the wheelchair frame to ascend or descend stairs or stepped portions; a landing gear part which is provided in the caterpillar part and has front and rear free ends that ascend or descend about the center of gravity of the wheelchair frame; a three-axis acceleration sensor for measuring the x, y, and z-axis accelerations of the caterpillar part; and a control unit for calculating the roll angle and the pitch angle from data from the acceleration sensor, and estimating the yaw angle of the caterpillar part, wherein, when one end of the landing gear part ascends, the caterpillar part ascends and contacts a stair or stepped surface, and then the wheelchair frame is driven by the caterpillar part to travel on the stepped portions, thus allowing the wheelchair frame to ascend or descend the slope of the stair or stepped portion without an assistant.

IPC Classes  ?

• A61G 5/06 - Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle-mounting facilities, e.g. for climbing stairs
• A61G 5/04 - Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
• A61G 5/10 - Parts, details or accessories

Abstract

Provided is a light emitting diode. The light emitting diode includes a substrate, a first semiconductor layer on the substrate, an active layer on the first semiconductor layer, a second semiconductor layer on the active layer, and a conductor passing through the second semiconductor layer and the active layer to contact the first semiconductor layer.

IPC Classes  ?

• H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
• H01L 33/42 - Transparent materials
• H01L 33/20 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
• H01L 33/26 - Materials of the light emitting region
• H01L 27/15 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier, specially adapted for light emission
• H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof

Abstract

The present invention presents: a semi-active above-knee prosthesis having a bending assist device provided to a passive above-knee prosthesis so as to enable the angle of bending of the passive above-knee prosthesis to be automatically increased so that the angle of bending of the prosthesis can be adjusted as necessary in specific conditions such as when going up and down the stairs; and a control method for the semi-active above-knee prosthesis. The semi-active above-knee prosthesis having the bending assist device comprises the passive above-knee prosthesis and the bending assist device, and the control method for the semi-active above-knee prosthesis relates to a method for controlling the operation of the semi-active above-knee prosthesis having the bending assist device, set forth in claim 1, and performs a flatland walking step, a stairs determination step, an ascending/descending determination step, a stairs-ascending walking step, and a stairs-descending walking step.

IPC Classes  ?

• A61F 2/60 - Artificial legs or feet or parts thereof
• A61F 2/68 - Operating or control means
• A61F 2/80 - Sockets, e.g. of suction type
• A61B 5/11 - Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
• A61F 2/70 - Operating or control means electrical
• A61F 2/50 - Prostheses not implantable in the body

Abstract

233), an air gap structure having a crystalline correlation with a lower substrate, and then grow a diamond. The method simplifies a process during the heterogeneous growth of large-area/large-diameter single crystal diamond and lowers costs, and mitigates the stress caused by a difference in lattice constants and thermal expansion coefficients between a heterogeneous substrate and diamond and reduces defects or cracks even during drops in temperature, thereby manufacturing a single crystal diamond substrate with high quality and facilitating self-separation of the diamond substrate from the heterogeneous substrate.

IPC Classes  ?

• H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
• H01L 21/027 - Making masks on semiconductor bodies for further photolithographic processing, not provided for in group or
• H01L 21/324 - Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering

Abstract

The present invention relates to a method for manufacturing an aluminum nitride-based transistor. An aluminum nitride (AlN)-based HEMT device of the present invention uses an AlN buffer layer, wherein an AlGaN composition variation layer is inserted in the interface of GaN/AlN to remove or inhibit the degree of formation of two-dimensional hole gas (2DHG), to thereby reduce the effect of Coulomb drag in a two-dimensional electron gas (2DEG) layer and improve the mobility of 2DEG.

IPC Classes  ?

• H01L 29/778 - Field-effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT
• H01L 29/66 - Types of semiconductor device

Abstract

A vehicle to vehicle (V2V) communication method and an apparatus using the same, for changing a communication method with a surrounding vehicle in consideration of an event type, may include: when an event occurs, determining whether the event is an important event, when the event is the important event, broadcasting data of the event, when the event is not the important event, determining a transmission method depending a communication situation with a surrounding vehicle, and multicasting or broadcasting the data of the event depending on the determined transmission method.

IPC Classes  ?

• H04W 76/40 - Connection management for selective distribution or broadcast
• G08G 1/09 - Arrangements for giving variable traffic instructions
• H04W 4/08 - User group management
• H04W 4/46 - Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]

Abstract

A software defined network (SDN)-based network management apparatus includes: an SDN controller including a first management unit to store a plurality of heterogeneous protocol information items, and an SDN switch controlled by the SDN controller and including a second management unit to store at least one heterogeneous protocol information item acquired from the SDN controller and a gateway to communicate with a vehicle network. In particular, upon receiving a packet corresponding to a new protocol that has not been used for access, from an external source, the SDN switch sends a request to the SDN controller for analysis of the received packet, and the SDN controller forwards protocol information corresponding to the received packet among the plurality of heterogeneous information items stored in the first management unit, to the SDN switch.

IPC Classes  ?

• H04L 29/06 - Communication control; Communication processing characterised by a protocol
• H04L 12/24 - Arrangements for maintenance or administration
• H04L 29/08 - Transmission control procedure, e.g. data link level control procedure
• H04L 12/46 - Interconnection of networks
• H04L 12/40 - Bus networks

Abstract

The present invention relates to: a hybrid bio-ink which comprises a mixture of a first bio-ink obtained by liquefying extracellular matrices of decellularized tissues and a second bio-ink containing alginate or fibrinogen, provides advantages in terms of the survival, proliferation, and differentiation of cells due to excellent biocompatibility, and due to excellent physical strength, does not undergo deformation due to cells even after ionic crosslinking; a method of preparing the hybrid bio-ink; and a method of preparing artificial tissues using same, the present invention comprising: a first bio-ink obtained by liquefying the extracellular matrices of the decellularized tissues; and a second bio-ink containing alginate or fibrinogen, wherein the first bio-ink and the second bio-ink are mixed preferably in a volume ratio (v/v) of 1.5-9:1.

IPC Classes  ?

• A61L 27/36 - Materials for prostheses or for coating prostheses containing ingredients of undetermined constitution or reaction products thereof
• A61L 27/20 - Polysaccharides
• A61L 27/22 - Polypeptides or derivatives thereof
• A61L 27/38 - Animal cells
• B33Y 80/00 - Products made by additive manufacturing

Abstract

The mixing device of cell printing composition according to the present disclosure comprises a first syringe comprising a first container for containing first liquid, a first moving element discharging the first liquid contained in the first container; a second syringe comprising a second container for containing second liquid, a second moving element discharging the second liquid contained in the second container; a mixing container which comprises a rotating mixing unit and receives the discharged first liquid and the discharged second liquids; a power transmission unit for driving the first moving element, the second moving element and the mixing unit; a first threaded guide where the first moving element is movably connected; a second threaded guide where the second moving element is movably connected; and a rod for rotating the mixing unit.

IPC Classes  ?

• B01F 15/02 - Feed or discharge mechanisms
• B01F 7/18 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a vertical axis with paddles or arms
• B01F 7/24 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a vertical axis with helices
• B01F 15/00 - Accessories for mixers
• C12M 1/06 - Apparatus for enzymology or microbiology with gas introduction means with agitator, e.g. impeller
• B05C 17/005 - Hand tools or apparatus using hand-held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material through an outlet orifice by pressure
• B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
• B05C 17/01 - Hand tools or apparatus using hand-held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material through an outlet orifice by pressure with mechanically or electrically actuated piston or the like
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• C12M 1/26 - Inoculator or sampler

Abstract

The present invention relates to a method for manufacturing hollow silica particles having a titanium dioxide shell and, more specifically, to a method for manufacturing hollow silica particles, the method comprising the steps of: preparing inorganic template particles; forming a first shell containing silicon and silica on a surface of the inorganic template particles; removing the inorganic template particles to form hollow silica particles; and forming a second shell containing titanium dioxide on a surface of the hollow silica particles.

IPC Classes  ?

• C01B 33/18 - Preparation of finely divided silica neither in sol nor in gel formAfter-treatment thereof
• C01G 23/053 - Producing by wet processes, e.g. hydrolysing titanium salts

Abstract

The present invention relates to a method for manufacturing an ultrasonic fingerprint sensor by using a nanorod structure, the method comprising: a conductive mold generating step of etching a conductive substrate so as to generate a plurality of rod generating holes spaced apart by a predetermined interval; a nanorod generating step of filling the plurality of rod generating holes with a nano piezoelectric material so as to generate nanorods; a side electrode generating portion indicating step of marking side electrode generating portions on conductive mold edge portions on one sides of the rod generating holes; a conductive mold etching step of primarily etching the remaining conductive mold, excluding the nanorods, the marked side electrode generating portions, and the conductive substrate base connecting the same, so as to generate nanorods and side electrodes; an insulating material filling step of filling parts etched through the conductive mold etching step with an insulating material; a lower electrode forming step of conducting secondary etching so as to expose first end portions of the nanorods and of the side electrodes, which are surrounded by the insulating material through the insulating material filling, and forming lower electrodes on the exposed first end portions of the nanorods and of the side electrodes; a dummy substrate attaching step of attaching a dummy substrate to the surface on which the lower electrodes are formed; and an upper electrode forming step of forming upper electrodes on second end portions of the nanorods and of the side electrodes, which are exposed by removing the conductive substrate base connecting the nanorods and the side electrodes.

IPC Classes  ?

• H01L 41/113 - Piezo-electric or electrostrictive elements with mechanical input and electrical output
• G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
• H01L 41/18 - Selection of materials for piezo-electric or electrostrictive elements
• H01L 41/047 - Electrodes
• H01L 29/06 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions
• H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
• H01L 21/28 - Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups

Abstract

A cell printing apparatus of the present disclosure comprises a nozzle configured to discharge a heat-sensitive cell printing composition; and a heating unit for transferring heat to the upper side of the heat-sensitive cell printing composition which is discharged from the nozzle to be laminated. A predetermined space is formed between the heating unit and the nozzle so that the heating unit does not contact with the nozzle.

IPC Classes  ?

• C12M 1/02 - Apparatus for enzymology or microbiology with agitation meansApparatus for enzymology or microbiology with heat exchange means
• C12M 3/00 - Tissue, human, animal or plant cell, or virus culture apparatus
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• C12M 1/00 - Apparatus for enzymology or microbiology
• C12M 1/26 - Inoculator or sampler

Abstract

A cell printing apparatus according to the present disclosure comprises: a nozzle through which a liquid cell substance is discharged; a container in which the liquid cell substance discharged through the nozzle is laminated into a three-dimensional structure; and a supply unit for supplying the liquid heated to a predetermined temperature to the container.

IPC Classes  ?

• C12M 1/02 - Apparatus for enzymology or microbiology with agitation meansApparatus for enzymology or microbiology with heat exchange means
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• C12N 11/00 - Carrier-bound or immobilised enzymesCarrier-bound or immobilised microbial cellsPreparation thereof
• B29C 64/30 - Auxiliary operations or equipment
• C12M 1/26 - Inoculator or sampler
• B29C 64/364 - Conditioning of environment
• B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
• C12M 3/00 - Tissue, human, animal or plant cell, or virus culture apparatus
• B29C 64/106 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
• B29C 64/295 - Heating elements
• B33Y 10/00 - Processes of additive manufacturing

Abstract

The present invention relates to a method for producing a hollow silica particle, the method comprising: a step for producing a ZnO inorganic template particle by applying heat to a solution obtained by mixing a Zn precursor and an alkaline precipitant; a step for producing a ZnO/silica core-shell particle by forming a silica shell on the surface of the ZnO inorganic template particle by reacting a silica precursor and a salt with the ZnO inorganic template particle; and a step for removing the ZnO inorganic template particle from the ZnO/silica core-shell particle. The method of the present invention produces a hollow silica particle by using a ZnO inorganic template particle which may be easily removed through an acid-treatment process without performing a separate heat treatment or using an organic solvent, and thus can prevent problems of contamination and particle coagulation that occur during a process for removing a template particle using an organic solvent and a heat treatment. In addition, the method of the present invention improves hollowing efficiency by maximizing the hollow size of hollow silica by controlling the size and shape of a ZnO inorganic template particle, and can provide the hollow silica particle that is required according to the field of application.

IPC Classes  ?

• C01G 9/02 - OxidesHydroxides
• C01B 33/18 - Preparation of finely divided silica neither in sol nor in gel formAfter-treatment thereof

Abstract

A mixing device for a cell printing composition, of the present invention, comprises: a first syringe comprising a first accommodation part for accommodating a first liquid, and a first operation part for discharging the first liquid to be accommodated in the first accommodation part; a second syringe comprising a second accommodation part for accommodating a second liquid, and a second operation part for discharging the second liquid to be accommodated in the second accommodation part; a mixing container comprising a mixing part in which the first liquid to be discharged and the second liquid to be discharged enter so as to be mixed and rotate; and a power transmission part for operating the first operation part, the second operation part, and the mixing part.

IPC Classes  ?

• C12M 1/06 - Apparatus for enzymology or microbiology with gas introduction means with agitator, e.g. impeller
• B01F 7/18 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a vertical axis with paddles or arms
• B01F 7/24 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a vertical axis with helices
• B01F 15/00 - Accessories for mixers

Abstract

Disclosed are a method and an apparatus for estimating a channel in a communication system. A wireless transmission apparatus may detect a channel environment, calculate channel variation on the basis of the detected channel environment, and allocate pilot symbols to frequency domains according to the channel variation. Further, the wireless transmission apparatus may transmit and receive data by using OFDM, and may estimate a symbol position and a channel through compressive sensing which utilizes an average of a plurality of received samples in a time domain.

IPC Classes  ?

• H04L 25/02 - Baseband systems Details
• H04L 5/00 - Arrangements affording multiple use of the transmission path

Abstract

The present invention relates to a method for filling two or more different kinds of multiple inks in an ink discharge member for three-dimensional printing and to a three-dimensional printing method using the filled inks, the three-dimensional printing method using multiple inks comprising the steps of: producing an ink discharge by allowing the accommodated multiple inks to be discharged under pressure from a single discharge port of a discharge unit; and printing using the ink discharge.

IPC Classes  ?

• B29C 67/00 - Shaping techniques not covered by groups , or
• A61L 27/20 - Polysaccharides
• A61L 27/22 - Polypeptides or derivatives thereof
• A61L 27/24 - Collagen
• A61L 27/36 - Materials for prostheses or for coating prostheses containing ingredients of undetermined constitution or reaction products thereof
• A61L 27/38 - Animal cells

Abstract

The present invention relates to an ultraviolet light emitting device transparent electrode and a manufacturing method therefor and, more specifically, to: an ultraviolet light emitting device transparent electrode comprising a first oxide layer, a metal layer formed on the first oxide layer, and a second oxide layer formed on the metal layer, wherein the first oxide layer and/or the second oxide layer comprises fluorine-doped tin oxide (FTO); and a manufacturing method therefor. The present invention can provide the ultraviolet light emitting device transparent electrode, which has high transmittance with respect to a short wavelength region, and reduce manufacturing costs of an ultraviolet light emitting device.

IPC Classes  ?

• H01L 33/42 - Transparent materials
• H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
• H01L 33/02 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies

Abstract

The present invention relates to a multiple ink printing device and a printing method using the same and, more specifically, to a multiple ink printing device comprising an ink extrusion member, the ink extrusion member comprising: a storage part which is partitioned into a plurality of containing parts for respectively containing multiple inks; and an extrusion part having a single passage through which the multiple inks, contained in the storage part, pass, and to a three-dimensional printing method of a printout having a cross-sectional pattern, the method comprising a step of supplying different inks to partitioned spaces by using the printing device and applying pressure in the same condition to the contained inks so as to extrude the inks contained in two or more partitioned spaces through a single extrusion port, thereby producing an ink extrusion product and performing printing.

IPC Classes  ?

• C12M 1/26 - Inoculator or sampler
• B29C 67/00 - Shaping techniques not covered by groups , or
• C12N 5/00 - Undifferentiated human, animal or plant cells, e.g. cell linesTissuesCultivation or maintenance thereofCulture media therefor

Abstract

Provided are a system and method for estimating the center of gravity of a walking rehabilitation robot, the system being provided with: a sensor module for estimating the point of the center of gravity, and provided with: a sensor unit mounted on a footplate to sense the pressure when a person walks; output means for outputting a voltage value corresponding to preset conditions according to a pressure signal sensed by the sensor module; and estimating means for calculating an angle value corresponding to the voltage value outputted by the output means, and estimating the center of gravity, wherein a body center can be estimated by obtaining an accurate detection using a small-sized system that has a relatively low-cost sensor module installed therein.

IPC Classes  ?

• G01M 1/12 - Static balancingDetermining position of centre of gravity
• B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
• G01L 1/20 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress

Abstract

The present invention relates to a method for preparing hollow silica particles by using a supersaturated solution. More specifically, the present invention relates to a method for preparing hollow silica particles by using a supersaturated solution, the method being capable of generating hollow silica particles by using, as a core material for generating core shell particles, an undissolved solute present in the supersaturated solution. The present invention comprises the steps of: (a) generating a supersaturated solution by injecting a solute into a solvent; (b) generating, by injecting a silica precursor into the supersaturated solution, core shell particles comprising a solute core, which is undissolved solute particles contained in the supersaturated solution, and a silica shell to be generated from the silica precursor; and (c) removing the solute core. According to the present invention, since an undissolved solute contained in a supersaturated solution is used as a core material for generating core shell particles and a core material for generating hollow silica particles can be easily removed by a solvent, there are effects of simplifying manufacturing process and lowering manufacturing cost.

IPC Classes  ?

• C01B 33/18 - Preparation of finely divided silica neither in sol nor in gel formAfter-treatment thereof

Abstract

A cell printing apparatus according to the present invention comprises: a nozzle through which a cellular liquid substance is discharged; a container in which the cellular liquid substance discharged through the nozzle is layered into a three-dimensional structure; and a supply part for supplying the liquid heated to a set temperature to the container.

IPC Classes  ?

• C12N 11/00 - Carrier-bound or immobilised enzymesCarrier-bound or immobilised microbial cellsPreparation thereof
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor

Abstract

A cell printing apparatus according to the present invention comprises: a nozzle through which a heat-sensitive cell printing composition is discharged; and a heating unit provided so as to transmit heat from above the heat-sensitive cell printing composition which is discharged from the nozzle and layered. A set space is provided between the heating unit and nozzle so that the heating unit and nozzle do not come into contact with each other.

IPC Classes  ?

• C12N 11/00 - Carrier-bound or immobilised enzymesCarrier-bound or immobilised microbial cellsPreparation thereof
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor

Abstract

A shielding film for alveolar bone regeneration according to the present invention comprises: a first biodegradable fibrous layer which is in contact with a bone graft material side; a second biodegradable fibrous layer which is provided on the first biodegradable fibrous layer and is in contact with a gum layer; and a first reinforcing biodegradable fibrous layer which is provided at a portion in contact with a cap which is bonded to an artificial dental root.

IPC Classes  ?

• A61C 5/00 - Filling or capping teeth
• A61C 19/06 - Implements for therapeutic treatment
• A61C 8/00 - Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereonDental implantsImplanting tools

Abstract

An energy storage system (ESS) includes a battery pack, a power converter, a battery management system (BMS) configured to control and monitor, in real time, the battery pack, a load power controller coupled to the battery pack and an external power source, connected to loads, and an integrated controller configured to control an operation of each component, determine an exclusive supply initiation time based on energy management schedule information including the exclusive supply initiation time, an exclusive supply termination time, and power supply timing information, control power to be supplied to the loads exclusively using power of the battery pack at the exclusive supply initiation time, and, when a current residual charge amount of the battery pack is at least one residual charge amount in the power supply timing information, control power supply to one of the loads set to correspond to the residual charge amount to be cut.

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• H02J 1/12 - Parallel operation of dc generators with converters, e.g. with mercury-arc rectifier
• H02J 3/32 - Arrangements for balancing the load in a network by storage of energy using batteries with converting means
• H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
• H02J 7/34 - Parallel operation in networks using both storage and other DC sources, e.g. providing buffering

Abstract

The present invention relates to a system and a method for controlling a joint angle of a knee-joint type walking training robot which estimates a walking stage of a person receiving rehabilitation for walking and actively responds to the walking stage on the basis thereof. The present invention can easily control the joint angle of the knee-joint type walking training robot by providing a configuration comprising: a pressure measuring device for measuring the pressure on the sole of a walker's foot by using a pressure sensor; and a joint angle estimating device for estimating the joint angle of a knee-joint by extracting movement time of the walk and the length of the part of the sole contacting the ground on the basis of the sole's pressure measured by the pressure measuring device.

IPC Classes  ?

• A61H 3/00 - Appliances for aiding patients or disabled persons to walk about
• A61H 1/02 - Stretching or bending apparatus for exercising
• A61B 5/103 - Measuring devices for testing the shape, pattern, size or movement of the body or parts thereof, for diagnostic purposes
• A61B 5/11 - Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
• B25J 9/16 - Programme controls

Abstract

The present invention relates to an apparatus for measuring a wetting angle between a liquid oxide and a solid oxide, which have reactivity or solubility, and comprises: a main body comprising a heating element for heating the inside of the main body and an insulative wall; a stage located inside the main body and in which a solid-state first oxide sample is located; a drop ejector for storing a second oxide in a liquid state and dropping the liquid-state second oxide on the surface of the first oxide sample in droplet form; and an image-recording device for capturing the wetting angle of the first oxide sample and the second oxide droplets. The apparatus for measuring a wetting angle, of the present invention, comprises a separate drop ejector so as to drop a liquid oxide onto a solid sample in droplet form, and thus, compared to when conventionally applying heat in a state in which a liquid oxide is put on the surface of a solid sample, the apparatus minimizes the reaction or dissolution processing time on the contact surface of the solid oxide and the liquid oxide, thereby enabling the wetting angle measurement to be performed in a more accurate manner.

IPC Classes  ?

• G01N 13/00 - Investigating surface or boundary effects, e.g. wetting powerInvestigating diffusion effectsAnalysing materials by determining surface, boundary, or diffusion effects
• G01N 13/02 - Investigating surface tension of liquids
• G01B 11/26 - Measuring arrangements characterised by the use of optical techniques for measuring angles or tapersMeasuring arrangements characterised by the use of optical techniques for testing the alignment of axes
• G01B 21/22 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapersMeasuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for testing the alignment of axes

Abstract

Disclosed is a device for harvesting hybrid energy, according to an embodiment of the present invention, comprising: a resilient beam that includes a piezoelectric member and a non-magnetic resilient material that are bonded to each other; a ferromagnetic body inserted into the resilient beam to deform the shape of the resilient beam while reciprocating between a heat source and a cooling source; a fixing support means provided on one side of the resilient beam to fix the resilient beam; and a simple support means provided on an opposite side of the resilient beam to support the resilient beam and to allow the resilient beam to rotate, wherein the piezoelectric member produces electrical energy when the shape of the resilient beam is deformed by the reciprocating of the ferromagnetic body. Further, the device for harvesting hybrid energy, according to the embodiment of the present invention, can produce electrical energy using external vibration by adjusting the natural frequency of the resilient beam using a proof mass member installed on the resilient beam.

IPC Classes  ?

• H02N 2/18 - Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators

Abstract

The present invention relates to a device for detecting communication disconnection with a smart clamp meter and a method for operating communication disconnection detection. A device for detecting communication disconnection with the smart clamp meter according to the present invention comprises: a Bluetooth low energy (BLE) chip for receiving measurement data from the smart clamp meter according to a short-range wireless communication scheme; a flag module which is activated or deactivated according to whether the measurement data is received through the BLE chip; and a processing module for inspecting the flag module when an inspection period has arrived, and determining a session with the smart clamp meter as a disconnection state when the flag module is found to be deactivated.

IPC Classes  ?

• H04L 12/26 - Monitoring arrangements; Testing arrangements
• H04L 1/20 - Arrangements for detecting or preventing errors in the information received using signal-quality detector

Abstract

Provided are a system and method for estimating the center of gravity of a walking rehabilitation robot, the system being provided with: a sensor module for estimating the point of the center of gravity, and provided with: a sensor unit mounted on a footplate to sense the pressure when a person walks; output means for outputting a voltage value corresponding to preset conditions according to a pressure signal sensed by the sensor module; and estimating means for calculating an angle value corresponding to the voltage value outputted by the output means, and estimating the center of gravity, wherein a body center can be estimated by obtaining an accurate detection using a small-sized system that has a relatively low-cost sensor module installed therein.

IPC Classes  ?

• B25J 19/00 - Accessories fitted to manipulators, e.g. for monitoring, for viewingSafety devices combined with or specially adapted for use in connection with manipulators
• B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices

Abstract

The present invention provides a tray, a pot, and a water supply structure. The tray comprises: a pot insertion tube which protrudes, to be upwardly inclined, from the edge of an opening which is in communication with a pot chamber; and a water release part for supplying water to the pot chamber from a water supplying part disposed above. The pot comprises: a porous structure for enabling water flow therein; and a water collecting cover for receiving water flowing therein, the pot entering the pot insertion tube from the bottom side and being inserted to the opening of the tray to be inclined such that an inlet faces the upper side. The water supply structure uses a guide pipe extending from the water release part such that an outlet comes in contact with a plant growing medium accommodated in the pot. In addition, the present invention provides a greening apparatus comprising the tray, the pot and the water supply structure.

IPC Classes  ?

• A01G 9/02 - Receptacles, e.g. flower-pots or boxes Glasses for cultivating flowers
• A01G 1/00 - Horticulture; Cultivation of vegetables (labels or name-plates G09F 3/00, G09F 7/00)
• A01G 27/00 - Self-acting watering devices, e.g. for flower-pots
• E04F 13/08 - Coverings or linings, e.g. for walls or ceilings composed of covering or lining elementsSub-structures thereforFastening means therefor composed of a plurality of similar covering or lining elements

Abstract

The present invention comprises the steps of: (A) receiving a dispute patent set comprising at least two lawsuit patent and appeal patents; (B) receiving dispute information related to the dispute patents; (C) assigning a dispute numeric value to the dispute patents belonging to the dispute patent set; and (D) with respect to the dispute patent set to which the dispute numeric value is assigned and a non-dispute patent set comprising two or more non-dispute patents to which dispute numeric values are assigned as a non-dispute numeric reference value, establishing at least one patent dispute risk measurement model by setting the dispute numeric value and the non-dispute numeric reference value as reaction variable values and using a description variable value for each of two or more description variables and a statistical scheme for the dispute patents and the non-dispute patents.

IPC Classes  ?

• G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)

Abstract

The present invention relates to a system and a method for controlling a joint angle of a knee-joint type walking training robot which estimates a walking stage of a person receiving rehabilitation for walking and actively responds to the walking stage on the basis thereof. The present invention can easily control the joint angle of the knee-joint type walking training robot by providing a configuration comprising: a pressure measuring device for measuring the pressure on the sole of a walker's foot by using a pressure sensor; and a joint angle estimating device for estimating the joint angle of a knee-joint by extracting movement time of the walk and the length of the part of the sole contacting the ground on the basis of the sole's pressure measured by the pressure measuring device.

IPC Classes  ?

• A61H 3/00 - Appliances for aiding patients or disabled persons to walk about
• A61H 1/00 - Apparatus for passive exercisingVibrating apparatusChiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
• B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
• B25J 19/02 - Sensing devices

Abstract

The present invention provides: an artificial soil composition comprising 100 parts by weight of nonwoven fabric, 90-110 parts by weight of urethane foam, 90-110 parts by weight of a low-melting-point bonding yarn, 5-10 parts by weight of an absorbent polymer, 0.3-1 parts by weight of a charcoal powder, and 0.3-1 parts by weight of a zeolite powder; and a method for manufacturing an artificial flowerpot by using the same.

IPC Classes  ?

• A01G 9/10 - Pots for seedlings; Soil-blocks for seedlings; Means for forming soil-blocks
• C05F 11/04 - Horticultural earth from peat
• A01G 9/02 - Receptacles, e.g. flower-pots or boxes Glasses for cultivating flowers

Abstract

The present invention relates to a vertical type light emitting diode, a method for manufacturing the same, an ultraviolet ray light emitting diode, and a method for manufacturing the same. A vertical type light emitting diode according to the present invention is on the basis of a nitride semiconductor having a p-n conjunction structure, a transparent material layer is formed on a p type clad layer, the transparent material layer having a refractive index different from that of the p type clad layer and having a pattern structure. A reflective metal electrode layer is formed on the transparent material layer as a p-electrode. After a stereoscopic pattern is formed in the transparent material layer, the p-electrode is deposited, and thus a pattern is formed in the p-electrode. Light from an active layer is emitted in a wide radiation angle by the pattern formed in the p-electrode, and reflectance is improved according to a patterned form and a refractive index of a material. Meanwhile, in depositing the p-electrode on the p type clad layer in the ultraviolet ray light emitting diode, when the p-electrode is deposited on only 10 to 70 % of the upper portion of the p type clad layer, an area where the p type clad layer is exposed is wide, therefore it is possible to increase a transmittance of ultraviolet rays through an area where the p-electrode is not deposited. A form of the p-electrode may be a mesh form, a punched plate form, a one-dimensional grid form, etc. The vertical type light emitting diode of the present invention is manufactured through a simple process, and has high reflection efficiency since light is emitted in a wide angle by the pattern of the p-electrode. Therefore, the present invention can provide a highly efficient vertical type light emitting diode. In addition, even when emitted light is ultraviolet rays, a transmittance can be increased.

IPC Classes  ?

• H01L 33/10 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a light reflecting structure, e.g. semiconductor Bragg reflector

Abstract

The aim of the present invention is to provide a high-emission-angle lens adapted to allow a lens having high emission angle properties to be made and to allow a thin-form flat lighting device to be constituted while at the same time saving on costs by constituting the lens as a spherical surface instead of a conventional semi-spherical surface, this being achieved through an increase in the angle of emission of light by using the spherical lens in the lens of a flat lighting device which is used during backlighting with LCDs or the like.

IPC Classes  ?

• H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
• F21V 5/04 - Refractors for light sources of lens shape
• G02B 3/00 - Simple or compound lenses
• G02F 1/13357 - Illuminating devices

Abstract

Provided are a high-quality non-polar/semi-polar semiconductor device with reduced defect density and improved internal quantum efficiency and light extraction efficiency, and a manufacturing method thereof. The manufacturing method is a method for manufacturing a semiconductor device, in which a template layer and a semiconductor device structure are formed on a sapphire substrate having a crystal plane for growing a non-polar or semi-polar nitride semiconductor layer. The sapphire substrate is etched to form uneven patterns, and the template layer including a nitride semiconductor layer and a GaN layer is formed on the sapphire substrate in which the uneven patterns are formed.

IPC Classes  ?

• H01L 21/20 - Deposition of semiconductor materials on a substrate, e.g. epitaxial growth
• H01L 33/20 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
• H01L 33/16 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular crystal structure or orientation, e.g. polycrystalline, amorphous or porous
• H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof

Abstract

The present invention relates to a method and system for FPGA design verification in a distributed environment, which can enable hardware limitations in SoC development to be overcome, improve convenience, and shorten development time.

IPC Classes  ?

• G06F 15/16 - Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
• G06F 9/455 - EmulationInterpretationSoftware simulation, e.g. virtualisation or emulation of application or operating system execution engines
• G06F 11/22 - Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing

Abstract

A method for measuring critical current density of superconductor wires according to the present invention is characterized in that it includes: (a) applying an external magnetic field to the superconductor wires, (b) measuring a magnetization loss of the superconductor wires according to the application of the external magnetic field, (c) normalizing the measured magnetization loss, and then calculating a fully-penetration magnetic field of the superconductor wires according to the normalized magnetization loss, (d) calculating a critical current density of the superconductor wires according to the calculated fully-penetration magnetic field. Therefore, the critical current density of parallel superconductor wires such as stacked superconductor wires may be measured without applying current to the superconductor wires directly.

IPC Classes  ?

• G01R 27/00 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
• G01R 33/12 - Measuring magnetic properties of articles or specimens of solids or fluids

Abstract

The present invention relates to a multiple transposition method for a superconducting wire in which a primarily transposed second generation superconducting wire consists of superconducting wire units, and the superconducting wire units are transposed in a lengthwise direction such that phases of the units are changed, wherein the method comprises the following steps: slitting a superconducting wire in a zigzagged manner to form a curvature, and repeating the formation of the curvature to prepare a strand of a desired length; superimposing a plurality of strands such that the curvatures of adjacent strands contact each other, and coupling the strands together so as to form a primarily transposed superconducting wire unit; preparing a plurality of primarily transposed superconducting wire units, and arranging the plurality of superconducting wire units in parallel to one another in a lengthwise direction so as to prepare a superconducting wire unit bundle; rotating the plurality of superconducting wire units in a lengthwise direction, about the central axis of the superconductor wire unit bundle, and twisting and coupling the plurality of superconducting wire units together to secondly transpose the units. The method of the present invention can transpose a plurality of strands while reducing patterns of the strands, thus enabling the transposition of superconducting wires to be easily performed even in a large current-superconducting device. The method of the present invention enables the easy manufacture and handling of superconducting wires, and simplifies processes and reduces manufacturing costs.

IPC Classes  ?

• H01B 12/00 - Superconductive or hyperconductive conductors, cables or transmission lines
• H01B 12/08 - Stranded or braided wires

Abstract

The present invention relates to a method for estimating the critical current density of a superconducting wire using an estimation of magnetization loss, wherein the method comprises the following steps: (a) applying a magnetic field from an external source to the superconducting wire; (b) measuring the magnetization loss of the superconducting wire caused by the application of the magnetic field from an external source; (c) normalizing the measured magnetization loss, and calculating the completely permeated magnetic field of the superconducting wire on the basis of the normalized magnetization loss; and (d) calculating a critical current density of the superconducting wire on the basis of the completely permeated magnetic field calculated in the previous step. Accordingly, critical current densities of parallel-type superconducting wires such as stacked type superconducting wires can be measured when current is not directly applied to the superconducting wires.

IPC Classes  ?

• G01R 19/08 - Measuring current density
• G01N 27/00 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means

Abstract

The present invention provides a high-quality nonpolar or semipolar semiconductor device and a fabrication method thereof, which can reduce the defect density of a nitride semiconductor layer and improve the inner quantum efficiency and the light extraction efficiency. The method for fabricating the semiconductor device is to form a semiconductor device structure and a template layer on a sapphire or SiC or Si substrate having a crystal face for the growth of a nonpolar or semipolar nitride semiconductor layer, and the method comprises the steps of: forming the nitride semiconductor layer on the substrate; performing surface modification for the nitride semiconductor layer into a porous layer; forming the template layer in which a nitride semiconductor layer is regrown on the surface-modified nitride semiconductor layer; and forming the semiconductor device structure on the template layer.

IPC Classes  ?

• H01L 33/16 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular crystal structure or orientation, e.g. polycrystalline, amorphous or porous

Abstract

The present invention relates to a high quality non-polar/semi-polar semiconductor element and a fabrication method thereof, wherein a nitride semiconductor crystal is formed on a sapphire crystal plane that enables the growth of a non-polar/semi-polar nitride semiconductor layer to eliminate an piezoelectric effect; and a template layer is formed on a corresponding off-axis of the sapphire crystal plane tilted in a predetermined direction to reduce the defect density of the semiconductor element and improves the internal quantum efficiency and extraction efficiency. In the fabrication method of a semiconductor element by forming a template layer and a semiconductor element structure on the sapphire substrate having a crystal plane for the growth of a non-polar or semi-polar nitride semiconductor layer, the sapphire substrate is a substrate having the crystal plane tilted in a predetermined direction, and a nitride semiconductor layer and the template layer comprising a GaN layer are formed on the tilt substrate.

IPC Classes  ?

• H01L 33/02 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies

Abstract

Disclosed are: a high-quality non-polar/semi-polar semiconductor element with reduced defect density and improved internal quantum efficiency and light-extraction efficiency in the semiconductor element; and a production method therefor. The semiconductor element production method is one in which a template layer and semiconductor element structure are formed on a sapphire substrate having a crystal face for growing a non-polar or semi-polar nitride semiconductor layer, wherein the sapphire substrate is etched to form an unevenly structured pattern, and then the nitride semiconductor layer and the template layer which comprises a GaN layer are formed on the sapphire substrate on which the unevenly structured pattern was formed.

IPC Classes  ?

• H01L 33/02 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies

Abstract

Disclosed are an interface device for an emulator and a method thereof. The emulator interface device according to one embodiment of the present invention may comprise: a connection unit which receives data for logic emulation from a host computer and transmits the resulting logic data back to the host computer; a transfer unit which receives the data from the connection unit, writes the received data in a first region of a register array, reads result data written in a second region of the register array if the result data is stored in the second region of the register array, and transfers the read data to the connection unit; and an interface unit, which includes at least one register array, uses the data stored in the first region to output a set clock (CLK) to the logic, and writes the result data outputted from the logic in the second region.

IPC Classes  ?

• G06F 9/455 - EmulationInterpretationSoftware simulation, e.g. virtualisation or emulation of application or operating system execution engines
• G06F 9/06 - Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
• G06F 13/00 - Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
• G06F 1/04 - Generating or distributing clock signals or signals derived directly therefrom

Abstract

The present invention relates to a superconducting power transformer device. According to the present invention, the superconducting power transformer device comprises a transformer acceptor wherein a transformer cable passage hole is formed and the inside of the transformer acceptor is filled with a liquid cooling means; a superconducting transformer which is in an immersed state in the cooling means and accepted into the transformer acceptor; an exchanger acceptor wherein an exchanger cable passage hole is formed and the exchanger acceptor is in a vacuum state sealed from the outside; a power tap exchanger which is accepted into the exchanger acceptor in a vacuum state; and a cable connecting tube which connects the transformer cable passage hole and the exchanger cable passage hole of the exchanger acceptor so that a transformer winding tap cable which connects the superconducting transformer and the power tap exchanger is permitted to pass, wherein the cable connecting tube is in a vacuum state sealed from the transformer acceptor and the exchanger acceptor. Accordingly, a superconducting transformer and a power tap exchanger such as an on load tap changer which operate at extremely low temperatures are provided..

IPC Classes  ?

• H01F 27/08 - CoolingVentilating

Abstract

Disclosed is the structure of a persistent current switch and a control method for the same. In the switch structure, a portion of a superconducting wire to be used as a switch is formed with slits such that the flow of current is controlled by the switch, to facilitate a transition between the superconducting state and the normal state of the superconducting wire. The structure of the persistent current switch includes a first slit longitudinally extending from a first point on one end of a superconducting wire to a second point and from a third point to a fourth point, the second, third, and fourth points being arranged sequentially in a longitudinal line, and second and third slits provided at opposite sides of a region between the second point and the third point where no first slit exists, the second and third slits having a length longer than a distance between the second point and the third point. As a result of providing the switch with the slits to facilitate a transition between the superconducting state and the normal state of the superconducting wire by controlling the flow of current through the superconducting wire, the superconducting wire can be easily changed from the superconducting state to the normal state even by slight heat. Accordingly, in an actual use thereof, the superconducting wire can reduce thermal load to be applied to a cooling system and assure easy regulation in the position of the switch.

IPC Classes  ?

• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding

Abstract

Disclosed herein is a method and apparatus for fabrication of a thin film superconductor. Specifically, provided is a method and apparatus for fabrication of a thin film superconductor using spray pyrolysis chemical vapor deposition, comprising dissolving an inorganometallic compound as a raw material in distilled water to prepare a precursor solution, spraying the resulting precursor solution in a state of fine droplets, and coating an epitaxial thin film on a substrate (such as a ceramic material, a nickel metal, a nickel alloy, stainless steel or the like) via a pyrolysis process. The method comprises dissolving an inorganometallic compound having a water-solubility in distilled water to prepare a precursor solution; processing the precursor solution into droplets having a size of several &mgr;m to several tens of &mgr;m and storing the droplets in a raw material storage; transferring the droplets in the storage to a main pipe via a pump and simultaneously supplying the droplets, in conjunction with carrier and reactant gases supplied by operation of a valve, to a nozzle; heating the droplets sprayed from the nozzle by an auxiliary heat source to evaporate the distilled water, thereby preparing fine-sized particles of the inorganometallic compound; elevating a temperature of a heater formed in a table, such that the resulting particles react with the reactant gas to form an oxide; uniformly forming a film of the oxide at opposite sides on a single crystal substrate having a certain texture provided to the table via conveyers, by a 㖗 shaped stainless steel plate, thereby forming an oxide template having a certain texture on the upper part of the substrate, and sufficiently heating the single crystal substrate prepared by forming an oxide buffer layer on the resulting oxide template to form an oxide thin film; and subjecting the resulting oxide thin film to an oxygen heat-treatment to complete a thin film superconductor having superconducting properties. That is, the present invention provides a method for fabrication of a thin film superconductor made of REBa2Cu3O7-x (RE = a rare-earth element selected from the group consisting of Y, La, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and any combination thereof), using a precursor solution prepared by dissolving an inexpensive inorganometallic compound in distilled water. Therefore, the present invention enables production of superconductors at a significantly lower cost, as compared to the use of a conventional expensive β-chelate compound, i.e., 2,2,6,6-tetramethyl-3,5-heptanedione (tmhd).

IPC Classes  ?

• H01L 21/205 - Deposition of semiconductor materials on a substrate, e.g. epitaxial growth using reduction or decomposition of a gaseous compound yielding a solid condensate, i.e. chemical deposition

Abstract

Disclosed herein is a pharmaceutical composition having preventative and therapeutic effects on liver diseases, comprising an extract from Lonicera caerulea L. var. edulis. The composition has preventative and therapeutic effects on hepatitis, liver cirrhosis, fatty liver, and the like.

IPC Classes  ?

• A61K 36/355 - Lonicera (honeysuckle)
• A61P 1/16 - Drugs for disorders of the alimentary tract or the digestive system for liver or gallbladder disorders, e.g. hepatoprotective agents, cholagogues, litholytics

Abstract

Disclosed herein is a food composition having the effect of restoring liver function, comprising an extract from Lonicera caerulea L. var. edulis. The composition may be useful in the manufacture of confectionery products, functional food, health food, or health supplements.

IPC Classes  ?

• A23L 1/29 - Modifying nutritive qualities of foods; Dietetic products ( A23L 1/09 takes precedence;dietetic salt substitutes A23L 1/22)

Abstract

Disclosed are a superconductive magnet manufactured by winding a thin superconductive rod wire in a coil without joint for maintaining a persistent current mode, and a method for manufacturing the same. The method includes winding both ends of a superconductive rod wire (10) on a first bobbin (21) and a second bobbin (22) respectively; forming a first unit rod wire (10a) and a second unit rod wire (10b) by slitting the superconductive rod wire (10) i n the lengthwise direction; producing a pancake coil by winding the first and second unit rod wires (10a, 10b) on third bobbins (25) in one direction; and arranging the first and second unit rod wires (10a, 10b) such that magnetic fields (B, B') in t he same direction are generated from the pancake coil, by reversing one of the third bobbins (25) on which the first and second unit rod wires (10a, 10b) are wound.

IPC Classes  ?

• H01F 41/04 - 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 for manufacturing coils
• H01F 6/06 - Coils, e.g. winding, insulating, terminating or casing arrangements therefor

Abstract

Disclosed herein are method for preparing an organometallic precursor solution by dissolving a metal salt and a metal oxide in an aqueous solution of an organic acid (S 1 ), evaporating the solvent (S 2) and dissolving the formed viscous jelly in organic solvent (S 3). The organometallic precursor solution is applied to a substrate (S 4) whose surface is textured (a ceramic single crystal substrate or a metal-ceramic composite substrate in which a textured ceramic thin film is formed on a metal substrate ) to produce an oxide superconductor. According to the method for preparing the organometallic precursor solution, an organic acid is used as a raw material other than trifluoroacetic acid, thereby enabling production of an oxide superconducting thin film with excellent superconductivity at reduced costs without being largely affected by the presence of moisture in air even during storage and processing, such as coating, in air.

IPC Classes  ?

• H01L 39/24 - Processes or apparatus specially adapted for the manufacture or treatment of devices provided for in group or of parts thereof
• H01L 39/12 - Devices using superconductivity or hyperconductivity; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof - Details characterised by the material
• H01B 12/06 - Films or wires on bases or cores
• C04B 35/40 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on ferrites with rare earth oxide
• C04B 35/45 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on copper oxide or solid solutions thereof with other oxides