Abstract: An ion source head may include a reaction chamber and a coil. The reaction chamber may be configured to provide an ionization space. The reaction chamber may be divided into a lower region, a central region and an upper region. The coil may be configured to be wound on an outer surface of the reaction chamber. The coil may include a first coil, a second coil and a third coil. The first coil may be spirally wound on an outer surface of the lower region of the reaction chamber. The second coil may be wound on the central region of the reaction chamber. The third coil may be spirally wound on an outer surface of the upper region of the reaction chamber. The second coil may be connected between the first coil and the third coil. The second coil may have a winding direction obliquely to a winding direction of the first and third coils.

Abstract: Disclosed is a temperature measurement system including: a light source unit for receiving excitation light; a target material on which the temperature-sensitive film is attached in order to emit the received excitation light into emission light; a phosphorescence detector for extracting the emission light into a phosphorescence decay signal; and a temperature extraction unit for extracting temperature of the target material using the phosphorescence decay signal.

Abstract: A structural adhesive composition having high elongation and impact resistance contains an epoxy resin, a urethane resin formed by using a polyol comprising a long chain as a functional group, and an epoxy curing agent.

Abstract: Disclosed is a device for resolving high-speed competition and distributing multi-channels in consideration of large-scale access based on LoRaWAN that enables efficient and stable communication through limited channel resources in a large-scale wireless transmission environment through a wireless communication wide area network. The device includes a terminal node competition unit for receiving a synchronization beacon and transmitting an access request signal to a base station, and performing an aptive contention window algorithm and enabling a terminal node to enter a transmitter according to a feedback packet (FBP) competition result when the FBP is received from the base station; and a terminal node transmitter for selecting a channel according to queuing rules and checking data transmission queue (DTQ) order, transmitting data when the DTQ order is a transmission turn, standing by FBP reception, and determining whether a contention resolution interval is ended to perform a DTQ reassignment process.

Abstract: A method for producing a catalyst for a fuel cell comprising: a) injecting carbon particles into a fluidized bed reactor; b) evacuating the fluidized bed reactor to form a base pressure; c) introducing a catalytic metal precursor together with a carrier gas into the fluidized bed reactor to contact the catalytic metal precursor with the carbon particles; d d) purging a purge gas into the fluidized bed reactor; e) introducing a reaction gas into the fluidized bed reactor to attach the catalytic metal precursor to the carbon particles; and f) purging a purge gas into the fluidized bed reactor, wherein, the catalytic metal is attached to the carbon particles in a form of nano-sized spot.

Abstract: Disclosed is a device for increasing reliability of downlink traffic to mobility devices in an RPL environment that can increase reliability of downlink traffic by dual path generation and redundant packet retransmission for the mobile device in an environment where mobility exists. The moving device includes a directed acyclic graph (DAG) rank value acquisition unit for receiving a destination oriented directed acyclic graph information object (DIO) of parent devices to obtain a DAG rank value of each parent device; a parent device selection unit for selecting prefer parents and alternate parents based on a DAG rank of the parent device; and a destination advertisement object (DAO) signal processing unit for transmitting a DAO to a sync device when the prefer parents and the alternate parents are determined.

Abstract: Disclosed is a system for generating test documents for context-sensitive spelling error correction. The system includes: an input unit inputting an error-free document for generating an error document; an error target word segment test unit checking possibility of an error in a word segment by sequentially examining word segments of the entire sentences in the document input through the input unit and searching for a candidate word appearing at the corresponding position together with surrounding context; an error word candidate selection unit selecting error word candidates among candidate words found at the corresponding position by considering edit distances to a correct word and keyboard typographical errors; and an error word determination and presentation unit calculating probabilities of an error word candidate and its surrounding context and determining an error word of the highest priority as a final error word.

Abstract: A cover unit includes: a body to which an ultrasound generator adapted to generate ultrasound is coupled; first slits disposed at a lower portion of the body in the form of multiple rings having different radii and spaced apart from each other, the first slits having a first width; second slits depressed from an upper surface of the body to communicate with the first slits and having a second width smaller than the first width; third slits depressed from the upper surface of the body and each disposed between adjacent second slits, the third slits having a third width smaller than the first width; a bottom formed under the first slits; a first sidewall formed between adjacent first slits; and a second sidewall formed between the second slit and the third slit.

Abstract: Disclosed is an ultrasonic wave transmission structure which is provided on a path of ultrasonic waves to amplify incident ultrasonic waves. The ultrasonic wave transmission structure includes: multiple rings each provided with a body portion having a different radius from other body portions and spaced apart from another body portion adjacent thereto and a slit disposed between adjacent body portions; and a membrane disposed in the multiple rings, wherein the mass of the membrane is adjusted to vary a resonant frequency in multiple sub-membrane regions.

Abstract: A control method of an automatic compression circular anastomosis device, includes: correcting a zero point when an operation switch provided in a handle unit is turned on, by a control unit; controlling a motor to compress a tissue in a direction reaching a minimum distance at which a distance between a top surface of an anastomosis unit and a bottom surface of an anvil is minimized, by the control unit; measuring a real-time pressure applied to the tissue and a real-time distance between the top surface of the anastomosis unit and the bottom surface of the anvil in real-time, by the control unit; and controlling, when the real-time pressure and the real-time distance reach a set pressure and a set distance Dr stored in advance, the anastomosis unit to cut unnecessary parts of the tissue and anastomose the tissue with a plurality of staples, by the control unit.

Abstract: Disclosed is a hardware module with a 32-bit unit operation for processor supporting ARIA encryption and decryption, including: an instruction pipeline that executes an instruction fetch, instruction decoding, and an instruction execution; and an ARIA operation module that has a 32-bit unit operation system provided in the instruction execution pipeline to support ARIA encryption and decryption. Two types of instructions, ARIA substitution layer and diffusion layer instructions are provided as a 32-bit unit operation instruction in order to provide an ARIA encryption/decryption function through the ARIA operation module, the substitution layer instruction includes two instructions for an even round and an odd round of the ARIA encryption/decryption, and the diffusion layer includes four types of diffusion layer instructions for the even sub-round and four types of diffusion layer instructions for the odd sub-round.

Abstract: A 3D stacked parallel-parallel power combiner includes first and second parallel power combining transformers and a first parallel power combiner. The first parallel power combining transformer includes first and second primary windings receiving first and second input signals, and a first secondary winding coupled to the first and second primary windings and providing a first output signal based on the first and second input signals. The second parallel power combining transformer includes third and fourth primary windings receiving third and fourth input signals, and a second secondary winding coupled to the third and fourth primary windings and providing a second output signal based on the third and fourth input signals. The first parallel power combiner is connected to output terminals of the first and second parallel power combining transformers and provides a third output signal by combining the first and second output signals.

Abstract: Disclosed are fast cell allocation scheduling device and method for a mobile node in a 6TiSCH network, in which when link quality of the mobile node is changed, a fixed path directed to a route node is allocated to establish a movement-route node fixed path minimizing a delay time between the mobile node and the route node.

Abstract: A method of manufacturing an optical fiber probe includes: stretching one end of the optical fiber in an axial direction thereof to form a first tapered portion in a first conical shape in which a diameter is gradually decreased toward a leading end of the optical fiber probe at a first ratio in an axial direction of the optical fiber probe to a point spaced a predetermined distance from a point fixed to a probe holder; and immersing and etching an end of the first tapered portion in an etching solution to form a second tapered portion formed in a second conical shape in which a diameter is gradually decreased at a second ratio greater than the first ratio in the axial direction from an end of the first tapered portion to form the leading end of the optical fiber probe.

Abstract: A storage device of the inventive concept may include at least one processor. The at least one processor may be configured to acquire a surface scan image in an image tile format of a set size, bind a set number of image tiles in one segment, and store a plurality of segments as files, respectively, instead of storing the image tiles without modification.

Abstract: Disclosed is a device for increasing reliability of downlink traffic to mobility devices in an RPL environment that can increase reliability of downlink traffic by dual path generation and redundant packet retransmission for the mobile device in an environment where mobility exists. The moving device includes a directed acyclic graph (DAG) rank value acquisition unit for receiving a destination oriented directed acyclic graph information object (DIO) of parent devices to obtain a DAG rank value of each parent device; a parent device selection unit for selecting prefer parents and alternate parents based on a DAG rank of the parent device; and a destination advertisement object (DAO) signal processing unit for transmitting a DAO to a sync device when the prefer parents and the alternate parents are determined.

Abstract: Disclosed are a method and apparatus for analyzing a cause of a product defect. The apparatus includes a pre-processing unit configured to receive process data and perform pre-processing for analyzing a cause of a product defect, a search unit configured to search for a primary defect cause-conditional sentence to represent a primary defect cause through solution encoding and decoding and solution fitness calculation for a plurality of candidate solutions in order to search for a conditional sentence using the pre-processed process data and to output the primary defect cause-conditional sentence, and a post-processing unit configured to receive the primary defect cause-conditional sentence, remove a redundant conditional sentence, and output the final defect cause-conditional sentence.

Abstract: A method and apparatus for decompressing FASTQ data through character frequency-based sequence reordering implemented by a computer apparatus, the method including separating genome sequencing data into components of an identifier, a nucleotide sequence read, and prediction quality information; measuring character frequency for the entire data of each of the nucleotide sequence read and the prediction quality information; producing a score by applying the measured character frequency for the nucleotide sequence read and the prediction quality information; reordering the nucleotide sequence read and the prediction quality information based on a condition that is preset based on the score; and compressing at least one of information of the identifier, an identifier of the nucleotide sequence read, and an identifier of the prediction quality information through a compression program by including the reordered nucleotide sequence read and the reordered prediction quality information and generating compressed geno

Abstract: Disclosed are a system and method for calculating elliptic curve cryptography scalar multiplication using an FPGA (Field Programmable Gate Array), the system and method scheduling calculation, which is used in a Montgomery ladder Algorithm, and enabling efficient calculation through an improved modular arithmetic calculation method. The system for calculating elliptic curve cryptography (ECC) scalar multiplication using an FPGA includes: a scheduler implementing Montgomery ladder step calculation in a pipeline structure; a pipeline modular adder/subtractor implementing n-bit modular addition in a d-stage pipeline structure; and a modular multiplier implementing n-bit modular multiplication in a 10-stage pipeline structure up to maximum 256 bits.

Abstract: Provided is a method of preparing an SnSe thermoelectric material including (a) heating a mixture including Sn2+ and Se2?, (b) cooling the mixture at a cooling rate greater than 0 and equal to or less than 3 K/h, and forming single crystal Sn1?xSe (where 0<x<1), and an SnSe thermoelectric material prepared thereby and including Sn vacancies.