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: 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 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.

Abstract: An optical interferometric LiDAR system to control the main measurement range using active selection of a reference optical path length according to an absolute position of an object to be measured, including: a laser source unit configured to emit light having a variable wavelength; a light dividing unit configured to divide the light into a variable reference arm and a measurement arm; a variable reference arm having a structure for selecting an optical path length of a reference arm; a measurement arm configured to propagate light and receive light reflected from a target object; and a light detecting unit configured to detect an optical signal generated as light passing through the variable reference arm and light passing through the measurement arm cause optical interference.

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: 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: 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: 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: Disclosed is a link-based autonomous cell scheduling device including: a routing information manager that records and manages information on a node's preferred parent node and child nodes in a routing information table; a slot frame manager that generates and modifies a number of slot frames by referring to routing information in the routing information table, packet queue information, and transmission/reception result information; a slot frame schedule determiner that integrates a number of slot frames to generate one integrated slot frame corresponding to a global slot frame size and record the same in an integrated slot frame table, by referring to a link unicast slot frame table, a broadcast slot frame table, and an EB slot frame table; and a TSCH MAC layer driver that operates after checking for a cell assigned to the integrated slot frame by referring to the integrated slot frame table at the TSCH MAC layer.

Abstract: A form of a color-changeable plastic includes: a first conductive electrode layer; a color change layer disposed on the first conductive electrode layer, configured to cover a top surface of the first conductive electrode layer, and made of a substance that changes color depending on whether a voltage is applied; a second conductive electrode layer disposed on the color change laver, configured to cover a top surface and side surfaces of the color change layer, and configured to change the color of the color change layer with the first conductive electrode layer when the voltage is applied; and a conductive guide disposed at at least one of the first conductive electrode layer or the second conductive electrode layer, and configured to guide a movement of electrons and a color change direction of the color change layer when the voltage is applied.

Abstract: A method for producing a metal catalyst, including applying an anodic current with a positive (+) sign to form a metal oxide having a bipyramidal shape, and then applying a cathodic current with a negative (?) sign or applying a potential in a negative (?) direction to form uniform atomic scale pores on the surface and inside of the metal particles, and controlling the amount of oxygen remaining in the metal to modify the metal surface.

Abstract: The present invention relates to a composition for drug delivery to a tissue having a tight junction comprising a triolein emulsion of an internal water phase/oil phase/external water phase (Water/Oil/Water, W/O/W) structure in which oil droplet comprises triolein and water droplets are enclosed in the oil droplet, as an active ingredient, and a method of preparing the same, and the triolein emulsion of the W/O/W-type structure according to the present invention has excellent safety because it retains the BBB opening activity of triolein as it is and the water droplets are enclosed in the oil droplets and contain surfactants and can further enclose fat-soluble drugs in the oil droplets and thus it can more effectively deliver drugs to tissues having tight junctions such as the brain, testicles, and retina.

Abstract: Disclosed are a polymeric dispersant capable of hybridizing nano-metal and nano-carbon, a polymeric dispersant being composed of a monomer capable of undergoing radical polymerization while having a disulfide functional group, 2-(dimethylamino)ethyl methacrylate, and an aromatic monomer having at least one unsaturated group, a method for preparing thereof, and a method of manufacturing a hybrid film using the polymeric dispersant.

Abstract: Disclosed herein is an image processing method and an image processing system for deep learning. The image processing method includes converting image data including at least one figure image into a vector image by changing a data format, encrypting at least one first attribute value for a position of the figure image in the vector image according to a selected encryption scheme, constructing a de-identified image for the image data by using a second attribute value which is changed by the encryption, and transferring the de-identified image to a cloud server in which a deep learning model is managed and processing deep learning operations of the de-identified image by the cloud server.

Abstract: A pharmaceutical composition includes an NAG-1 inhibitor as an active ingredient for inhibiting resistance against an anticancer drug of an ovarian cancer patient and a method of diagnosing prognosis of resistance against an anticancer drug of an ovarian cancer patient by using the NAG-1 inhibitor. It is found by controlling NAG-1 protein that NAG-1, which is overexpressed in an ovarian cancer patient and in an ovarian cancer stem cell having resistance against an anticancer drug, plays a key role in a chronic inflammatory reaction and resistance against an anticancer drug, and in this regard, NAG-1 can be used as a target gene for effective tumor therapy.

Abstract: A composite pin fin heat sink configured to dissipate heat generated by a heating element including a background region and a hot spot region having a higher temperature than the background region while the heating element is generating heat, the heat sink including a base plate having a first surface and a second surface, the first surface being configured to contact the heating element; and an array of pin fins protruding from the second surface and arranged at regular intervals. The base plate and the array of pin fins are divided into a first heat sink region corresponding to the hot spot region of the heating element, and a second heat sink region corresponding to the background region of the heating element. The first heat sink region is made of a material having a higher thermal conductivity than a material of which the second heat sink region is made.

Abstract: An assembly type rod for an occlusal plane taking is presented. An assembly type rod according to one embodiment comprises: a bite rod of which the middle portion thereof is placed between the upper and lower anterior teeth of a patient to obtain information of the frontal occlusal plane parallel to the interpupillary line; and an extension portion which is coupled to the bite rod in the form of a ball-and-socket through a ball-shaped coupling portion and is rotatable in a state of being coupled with the bite rod such that information of a lateral occlusal plane according to Camper's line on both sides can be acquired.