KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Daeok
Koh, Dongyeun
Choi, Woosung
Kim, Hansol
Park, Hyeonji
Kim, Kyunam
Hwang, Youngeun
Abstract
A volatile organic compound adsorbent includes a honeycomb-shaped glass fiber support and a microporous polymer covering a surface of the glass fiber support. A method of manufacturing a volatile organic compound adsorbent including a polymer-glass fiber composite includes: degassing a honeycomb-shaped glass fiber support; preparing a mixed solution of a microporous polymer and a solvent; preparing a polymer-glass fiber composite in which the microporous polymer is applied onto a surface of the glass fiber support by applying the mixed solution onto the surface of the glass fiber support; and drying the polymer-glass fiber composite.
B01D 53/02 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Min, Byung Ju
Kim, Seung Geun
Kang, Min Woo
Oh, Nam Gue
Kim, San Ha
Jeong, Ji Hun
Eom, Youn Sick
Abstract
A sub-pad for a polishing pad is disclosed. The sub-pad is stacked under a top pad that is brought into contact with a wafer to perform polishing, and includes a nanofiber nonwoven fabric pad. The nanofiber nonwoven fabric pad has a nanofiber density of an outer circumferential part that is formed to be 1.2 to 5 times higher than the nanofiber density of other portions inside the outer circumferential part. A polishing pad including the sub-pad and a method for manufacturing the sub-pad for the polishing pad are disclosed.
Korea Advanced Institute of Science And Technology (Republic of Korea)
Inventor
Yoon, Jun-Bo
Lee, Soyoung
Kim, Taesoo
Abstract
The present invention relates to an eletromechanical switch and a method for manufacturing the same, and more particularly, to an electromechanical switch with an electrostatic driving method having a fast-switching time, low on-resistance, and low leakage current and a method for manufacturing the same. An electromechanical switch according to an embodiment of the present invention includes: a substrate; a first electrode disposed on the substrate; a second electrode spaced apart from the first electrode on the substrate; a third electrode disposed on the first electrode and the second electrode, including a contact part spaced apart from the first electrode to form an air gap, and bringing the contact part into mechanical contact with the first electrode by electrostatic force with the second electrode.
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Bae, Hanyeoreum
Gouk, Donghyun
Lee, Seungjun
Kim, Jiseon
Koh, Sungjoon
Zhang, Jie
Jung, Myoungsoo
Abstract
A data storage device includes a memory array including a data region and a journal region; and a control circuit configured to generate journal region information including an address of the journal region, process a transaction command corresponding to a transaction based on the journal region information, and perform a checkpointing operation on a selected transaction among a predetermined number of transactions.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Yoo, Hongki
Lee, Seung Eon
Abstract
This optical coherence tomography (OCT) system comprises: a light source unit for generating source light; a sample arm for providing measurement light to a sample and providing the measurement light reflected from the sample to an optical coupler; a reference arm having an optical structure reflecting reference light; the optical coupler which divides the source light into the measurement light and the reference light to provide same to the sample arm and the reference arm, respectively, and combines and outputs the reflected measurement light and the reflected reference light respectively provided from the sample arm and the reference arm; and an optical detection unit for generating an optical coherence tomography image from the combined measurement light provided from the optical coupler, wherein the sample arm comprises a dispersion lens pair for inducing chromatic aberration of the measurement light by allowing the measurement light to have a plurality of different divergence angles according to wavelengths.
G01N 21/45 - RefractivityPhase-affecting properties, e.g. optical path length using interferometric methodsRefractivityPhase-affecting properties, e.g. optical path length using Schlieren methods
G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Jang, Jihwan
Choi, Jinseok
Chung, Jaehoon
Abstract
The present disclosure is for beamforming in a wireless communication system. This method performed by an apparatus comprises the steps of: transmitting, in different directions, beams including a synchronization signal; performing synchronization on the basis of the synchronization signal; receiving channel state information; acquiring initial information on the basis of the beams; determining a metric for beamforming on the basis of the initial information; finding a solution for a beamforming problem on the basis of the metric by using at least one algorithm; and forming a beam on the basis of the solution and the channel state information.
H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Lee, Hee Chul
Roh, Young Tak
Abstract
Provided is a radiation-tolerant 3D unit MOSFET having at least one selected from a dummy drain (DD), an N-well layer (NW), a deep N-well layer (DNW), and a P+ layer to minimize an influence by a total ionization dose effect and an influence by a single event effect.
H01L 29/06 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions
H01L 23/552 - Protection against radiation, e.g. light
H01L 27/02 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
H01L 29/08 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions with semiconductor regions connected to an electrode carrying current to be rectified, amplified, or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate
H10D 30/62 - Fin field-effect transistors [FinFET]
H10D 62/10 - Shapes, relative sizes or dispositions of the regions of the semiconductor bodiesShapes of the semiconductor bodies
H10D 62/13 - Semiconductor regions connected to electrodes carrying current to be rectified, amplified or switched, e.g. source or drain regions
H10D 89/60 - Integrated devices comprising arrangements for electrical or thermal protection, e.g. protection circuits against electrostatic discharge [ESD]
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Nam, Hui Beom
Lee, Yoon Sung
Ban, Sung Ho
Lee, Tae Rim
Rhee, Jun Ki
Lee, Yong Ho
Moon, Hyeon Gyu
Choi, Nam-Soon
Abstract
The present disclosure is an electrolyte solution for a lithium secondary battery and a method of preparing the same. The electrolyte solution enhances the output performance and high-temperature life characteristics of a lithium secondary battery, especially a lithium secondary battery including LiFePO4 (LFP)-based positive electrode active material, using 1-(trimethylsilyl)-1H-benzotriazole and similar additives.
H01M 10/0567 - Liquid materials characterised by the additives
H01M 4/02 - Electrodes composed of, or comprising, active material
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 10/0568 - Liquid materials characterised by the solutes
H01M 10/0569 - Liquid materials characterised by the solvents
9.
OPTICAL FREQUENCY COMB-BASED TERAHERTZ FREQUENCY GENERATOR, AND OPERATING METHOD THEREOF
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Young-Jin
Kim, Seung-Woo
Shin, Dongchel
Kang, Guseon
Kim, Byung Soo
Kim, Jaeyoon
Abstract
A terahertz frequency generator includes: a source laser configured to output an optical frequency comb; a first stabilization module configured to stabilize the optical frequency comb to a frequency reference source; a heterodyne module configured to extract a pair of comb lines from the stabilized optical frequency comb, with a frequency difference corresponding to a terahertz frequency, and optically couple the pair of comb lines; and a photomixer configured to convert an optical signal generated by the heterodyne module into the terahertz frequency.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Shin, Kijung
Kwon, Taehyung
Ko, Jihoon
Jung, Jinhong
Abstract
A tensor loss compression technique using neural network-based tensor-train decomposition is disclosed. The tensor loss compression method performed by a computer system, according to one embodiment, may comprise the steps of: inputting, into a neural network-based tensor train (TT) decomposition model, a mode index of a target item to be restored; and obtaining, through the neural network-based tensor train decomposition model, a tensor train core from the mode index of the target item to be restored.
G06N 3/0442 - Recurrent networks, e.g. Hopfield networks characterised by memory or gating, e.g. long short-term memory [LSTM] or gated recurrent units [GRU]
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Lee, Sangyup
Choi, Soyoung
Ahn, Dahee
Chae, Tong Un
Abstract
The present invention relates to a metabolically engineered recombinant microbial enzyme and a method for preparing poly(ester amide)s using same. The recombinant microorganism and the method for preparing poly(ester amide)s using same according to the present invention can biosynthesize various poly(ester amide) polymers from various carbon sources such as glucose, amino acids, hydroxy acids, and carboxylic acids, and are thus useful for the industrial production of poly(ester amide)s.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Min Hyuk
Ha, Hyunho
Abstract
Disclosed is a high-resolution three-dimensional (3D) scanning method and system that may acquire high-detail geometry by connecting a volumetric fusion and multiview shape-from-shaping (SfS) in two stages and may include estimating an illumination and acquiring a scalar depth value; estimating a photometric normal and a diffuse albedo using the scalar depth value acquired from the estimated illumination; and integrating the scalar depth value to a volumetric distance field, refining the photometric normal and the diffuse albedo, and blending the photometric normal and the diffuse albedo in a texture space.
Korea Advanced Institute of Science and Technology (Republic of Korea)
Foundation of Soongsil University-Industry Cooperation (Republic of Korea)
Inventor
Shin, Kijung
Kwon, Taehyung
Ko, Jihoon
Jung, Jinhong
Abstract
Disclosed is a lossy tensor compression method using neural tensor-train decomposition (NTTD). A lossy tensor compression method performed by a computer system may include inputting, to a neural tensor-train decomposition (NTTD) model, mode indices of a target entry to be reconstructed, and obtaining tensor-train (TT) cores from the mode indices of the target entry to be reconstructed through the NTTD model.
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Cho, Kwang Hyun
Kim, Nam Hee
Hwang, Chae Young
Kim, Tae Young
Abstract
The present invention relates to a composition for inhibiting metastasis and enhancing anticancer drug sensitivity, the composition removing, from cancer cells, stem cell properties and heterogeneity acquired by epithelial-to-mesenchymal transition (EMT), thereby being capable of inducing the cancer cells into a phenotype which has regained responsiveness to a chemotherapeutic agent. A combination of a p53 activator, a SMAD4 inhibitor and an ERK inhibitor of the present invention enables a mesenchymal cell phenotype to return to an epithelial cell phenotype, and also enables the ability of cancer cells to metastasize to be inhibited by overcoming the high plasticity and drug resistance of the cancer cells, and thus may be widely used in the field of cancer treatment.
A61K 31/496 - Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
A61K 31/513 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim having oxo groups directly attached to the heterocyclic ring, e.g. cytosine
A61K 31/704 - Compounds having saccharide radicals attached to non-saccharide compounds by glycosidic linkages attached to a carbocyclic compound, e.g. phloridzin attached to a condensed carbocyclic ring system, e.g. sennosides, thiocolchicosides, escin, daunorubicin, digitoxin
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Bonghoe
Ha, Jeongseok
Park, Taehee
Han, Seokju
Abstract
cc number of second bit sequences having uppermost minimum log likelihood ratio (LLR) values that are greater than a predetermined second threshold value among the P number of second bit sequences.
H03M 13/00 - Coding, decoding or code conversion, for error detection or error correctionCoding theory basic assumptionsCoding boundsError probability evaluation methodsChannel modelsSimulation or testing of codes
H04L 1/00 - Arrangements for detecting or preventing errors in the information received
16.
HYBRID LSCFP-BASED ELECTRODE AND MANUFACTURING METHOD THEREOF
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Lee, Kang Taek
Bae, Kyung Taek
Akhmadjonov, Akromjon
Abstract
A hybrid LSCFP-based electrode includes an electrode having porous pores formed between a plurality of nanofibers and pulverized nanofibers positioned within the porous pores, to solve the contact problem at a solid electrolyte interface, thereby providing excellent characteristics of electrolytic performance and stability at high temperatures, and providing a method for manufacturing a hybrid LSCFP-based electrode by a simple method.
C25B 11/077 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of a single catalytic element or catalytic compound the compound being a non-noble metal oxide
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Cho, Kwang-Hyun
Kim, Nam Hee
Abstract
A method of identifying a cell state regulation path is described, including the steps of setting a state of each node constituting an expanded network generated from a Boolean network corresponding to a biomolecular network of a particular cell to a value of a predetermined given initial state of the Boolean network; selecting a test subject node from diff-FBLs having complementary states in the initial state of the Boolean network and in a given target state, among the Boolean network FBLs, and perturbing the selected test subject node by computer simulation; testing whether the perturbation changes the values of all nodes in the diff-FBLs from initial state values to target state values; and, if the test subject node passes the test, determining that the test subject node is a master regulator, which must be controlled to transition the Boolean network from the initial state to the target state.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Lee, Sanghyun
Kim, Jaehong
Han, Dongsu
Kim, Sangeon
Min, Seunghyun
Lee, Yunheon
Lim, Hwijoon
Abstract
A method performed by a base station in a wireless communication system may comprise: determining the priority of flows to be transmitted to at least one user; based on a new flow coming in, an intra-user flow scheduler determines whether the flow size is smaller than a specified threshold and updates the priority; and allocating the flow to a queue on the basis of the updated priority.
H04W 72/566 - Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
H04L 47/62 - Queue scheduling characterised by scheduling criteria
H04L 47/6275 - Queue scheduling characterised by scheduling criteria for service slots or service orders based on priority
H04W 28/02 - Traffic management, e.g. flow control or congestion control
H04W 72/1263 - Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
19.
METHOD AND DEVICE FOR QUANTUM ERROR FILTERING USING QUANTUM ERROR FILTERING CODE
Korea Advanced Institute Of Science And Technology (Republic of Korea)
Inventor
Bae, Joonwoo
Kwon, Hyeokjea
Abstract
Provided is a method and device for quantum error filtering using a quantum error filtering code that may encode a quantum state for input data, may output, to a quantum circuit, a plurality of logical qubits each implemented as a plurality of physical qubits based on a predefined quantum error filtering code, and may detect a quantum error in one of the input logical qubits based on parities measured from the physical qubits for the logical qubits input through the quantum circuit.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Sanha
Kang, Sukkyung
Kim, Seong Jae
Jeong, Ji-Hun
Abstract
Various embodiments of the present disclosure relate to a fixed-abrasive pad using vertically aligned carbon nanotubes and a fabrication method for the same. The fixed-abrasive pad may include a pad made of a polymer material; and vertically aligned carbon nanotubes (VACNT) which are configured such that one side thereof is impregnated into the pad and the other side protrudes from the pad.
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Son, Dae Yong
Yu, Jung Han
Kim, Byoung Su
Lee, Hyun Joo
Kim, Hee Eun
Abstract
Disclosed are a catalyst complex which may suppress cell voltage reversal in a fuel cell and a method for manufacturing the same. The catalyst complex includes a support, a first catalytic active material supported on the support and comprising a platinum component including one or more selected from the group consisting of platinum and a platinum alloy, and a second catalytic active material supported on the support and comprising one or more selected from a noble metal other than platinum and an oxide thereof, and the support includes functional groups including oxygen.
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Yang, Eunho
Kim, Changhun
Park, Joonhyung
Shim, Hajin
Abstract
Disclosed is test-time adaptation technology for a speech recognition model through sequential level-generalized entropy minimization that may include acquiring a logit based on a beam search for a single utterance in a target domain; and adjusting parameters of the speech recognition model by performing entropy minimization and negative sampling using the acquired logit.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Jung, Myoungsoo
Choi, Minyoung
Kwon, Miryeong
Abstract
A method and an apparatus for classifying data and allocating blocks using the bit error rate. According to an embodiment of a present disclosure, a method for classifying data and allocating blocks using the bit error rate includes classifying data into first data and second data using information on quality of service (QoS) and a bit error rate. The method also includes determining a group ID using the information on QoS and a mapping table. The method also includes acquiring a block from an idle block pool of a group based on the group ID using the group ID. The method also includes allocating the block to the first data or the second data.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Woo, Woontack
Kim, Dooyoung
Abstract
A method for operating a mixed reality telepresence system comprises the steps of: extracting, from a first virtual space of a host and a plurality of second virtual spaces of a plurality of clients, a first subspace in which a target object is set and a plurality of second subspaces in which the target object is set; on the basis of the first subspace, the plurality of second subspaces, and an optimization function, generating a plurality of alignment spaces in which the plurality of second subspaces overlap the first subspace; determining a plurality of first positions on the plurality of alignment spaces; and on the basis of the plurality of first positions, setting a plurality of first interactable areas in the first virtual space.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
KOREA NATIONAL INSTITUTE OF HEALTH (Republic of Korea)
Inventor
Kim, Yoosik
Lee, Keonyong
Kim, Soo Hwan
Yeo, Jinah
Lee, Taeyoung
Jeon, Ji Hyang
Kim, Dokeun
Kim, You-Jin
Kim, Seo Yeon
Abstract
The present invention relates to a nucleic acid molecule capable of controlling innate immunity by RNA and, more specifically, to a short duplex hairpin RNA (sdhRNA) that binds to protein kinase R (PKR), which is activated upon recognition of RNA, thereby inhibiting the activity of PKR and suppressing PKR-mediated innate immunity and which, when introduced into the 3'-UTR of mRNA, can increase the expression level of an antigen. The sdhRNA motif according to the present invention inhibits the activity of protein kinase R (PKR) by binding to PKR activated by recognizing RNA. Therefore, when administered into cells in combination with exogenous RNA or as an insert into the 3'-UTR of mRNA, the sdhRNA motif exhibits the effect of reducing RNA-indued PKR activation, mitigating RNA-induced cell death, and downregulating the expression of interferon-stimulated gene (ISG) as well as improving the expression efficiency of a protein encoded by the mRNA. With the effects, the motif is applied to various RNA-based uses, for example, vaccines, in vivo/ex vivo gene therapeutic agents, and the like.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Park, Yoonsu
Park, Se Jin
Abstract
One aspect of the present invention relates to a titanium complex compound represented by chemical formula 1 and an organic light emitting device comprising same. The titanium complex compound according to one aspect can overcome the low luminous efficiency and instability of existing titanium-based light emitters and realize significantly improved luminous properties. [Chemical formula 1] (In Chemical Formula 1, Y1, Y2, R1to R7 and p to r are as described in the specification.)
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Cho, Kwang Hyun
Gong, Jeong Ryeol
Lee, Chun Kyung
Kim, Hoon Min
Kim, Ju Hee
Abstract
The present invention relates to a method for constructing a gene network through a single-cell transcriptome and a method for discovering key genes in differentiation using same, and a composition for the prevention, alleviation, or treatment of colon cancer using the target discovered through the method. The method for constructing a gene network of key genes according to the present invention employs single-cell transcriptome data and thus can be applied to all single-cell transcriptome data. The combination of MYB/HDAC2/FOXA2 discovered upon application to colon cells can serve as a cancer treatment target that promotes the differentiation of colon cancer cells to revert same into differentiated normal cells.
G16H 20/10 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to drugs or medications, e.g. for ensuring correct administration to patients
28.
LOCATION METHODS FOR FREQUENCY MODULATION CONTINUES WAVE (FMCW) RADAR AND COMMUNICATION DEVICES
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Song Min
Bae, Kangmin
Moon, Hankyeol
Abstract
In an existing method of measuring a location of a communication device by using FMCW radar, a frequency reflected from the communication device is used, and a method of calculating a difference between a frequency of a transmission signal of the FMCW radar and a frequency of a reflect wave reflected from the communication device is used. However, in the process of identifying the frequency difference, frequency difference is measured with a frequency resolution a reciprocal of a unit chirp time length, and the exact frequency cannot be measured.
In an existing method of measuring a location of a communication device by using FMCW radar, a frequency reflected from the communication device is used, and a method of calculating a difference between a frequency of a transmission signal of the FMCW radar and a frequency of a reflect wave reflected from the communication device is used. However, in the process of identifying the frequency difference, frequency difference is measured with a frequency resolution a reciprocal of a unit chirp time length, and the exact frequency cannot be measured.
The present disclosure is to solve the above problem, and provides
the effect of quickly and accurately measuring a distance between an FMCW radar and a communication device by using the FMCW radar and a frequency modulation tag, by transmitting a continuous chirp signal from the FMCW radar, simultaneously calculating an intermediate signal (IF), which is the frequency difference between transmitted and received signal, and demodulating the accurate modulation frequency f_m.
G01S 13/34 - Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Song Min
Bae, Kangmin
Moon, Hankyeol
Abstract
An existing method for measuring the location of a communication device using an FMCW radar uses a frequency carried by the communication device, and uses a method for calculating the difference between the frequency of a transmission signal of the FMCW radar and the frequency of a carrier wave carried by the communication device. However, in the process of identifying the frequency difference, the frequency of the reciprocal of the unit chirp time length is only measured as the resolution, and an accurate frequency is unable to be measured. In order to solve the above problem, the invention of the present application transmits a continuous chirp signal from the FMCW radar by using the FMCW radar and a frequency modulation tag, calculates an intermediate signal (IF) which is the difference in frequency between signals received at the same time, and demodulates an accurate modulation frequency f_m, thereby quickly and accurately measuring the distance between the FMCW radar and the communication device.
G01S 13/34 - Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Do Heung
Jeon, Hyo Jin
Yim, Kyoungwon
Im, Jangbin
Kang, Byungchan
Im, Sung Gap
Kang, Minjeong
Jang, Wontae
Choi, Keonwoo
Abstract
The present invention relates to a carbon/silicon-polymer composite and a method for manufacturing same. A carbon/silicon-polymer composite according to an embodiment of the present invention has excellent thickness uniformity of a polymer thin film, while the polymer thin film hardly affects electrical conductivity and lithium-ion conductivity. Therefore, when used as a negative electrode material, the carbon/silicon-polymer composite can act as a stable solid electrolyte interface layer while maintaining high specific capacity and Coulombic efficiency, and thus can suppress degradation in battery performance and lifespan.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Cho, Kwang Hyun
Lee, Jung Eun
Gong, Jeong Ryeol
Abstract
The present invention relates to a pharmaceutical composition for the prevention or treatment of cancer, comprising a DEAD-box helicase 54 (DDX54) inhibitor and a cancer immunotherapy agent, and to a combination therapy of cancer immunotherapy. The DDX54 inhibitor according to the present invention can enhance the efficacy of cancer immunotherapy when used in combination with a cancer immunotherapy agent, and the composition containing the DDX54 inhibitor and a cancer immunotherapy agent inhibits proliferation of cancer, which is a key characteristic thereof, and simultaneously inhibits a signal transduction pathway known as an immune evasion mechanism, and thus may be provided for the prevention or treatment of cancer.
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Yoo, Hoi Jun
Kim, Sang Yeob
Abstract
An AI neural network accelerator for a transformer neural network includes a calculator configured to predict output tokens in units of input tokens and including a plurality of transformer operation cores operating based on a transformer model using n weights (n being a natural number), a weight generator including a weight embedding logic generated in advance as a result of training by matching weights of the transformer neural network with a×b kernel location information of the transformer neural network, and configured to generate an implicit weight based on location information of a kernel input from an external memory, and a controller configured to control an operation of each of the transformer operation cores after determining a size of the transformer model based on a number of weights.
Electronics and Telecommunications Research Institute (Republic of Korea)
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Moon, Kiwon
Hwang, Hyeon
Seo, Min-Kyo
Lee, Hansuek
Ju, Jung Jin
Kim, Min-Su
Kim, Hong-Seok
Park, Jaegyu
Slusar, Tetiana
Kim, Jinwoo
Kim, Jin Tae
Park, Jiho
Abstract
Disclosed are a quantum light source device and an optical system including the same. The quantum light source device includes a substrate, a buffer layer provided on the substrate, and an optical waveguide layer provided on the buffer layer and including a signal waveguide and a resonant waveguide adjacent to one side of the signal waveguide. The resonant waveguide includes a periodic polarization inversion structure having a plurality of polarizations periodically inverted.
G02B 6/126 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind using polarisation effects
G02B 6/12 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
34.
METHOD FOR PRODUCING POROUS MAGNESIUM, POROUS MAGNESIUM PRODUCED THEREBY, AND HYDROGEN STORAGE MATERIAL COMPRISING HYDROGEN SUPPORTED BY POROUS MAGNESIUM
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
SAUDI ARABIAN OIL COMPANY (Saudi Arabia)
Inventor
Cho, Eun Seon
Kim, Hye Sun
Aqil, Jamal
Kim, Hyeonji
Abstract
Provided are a method for producing porous magnesium having a simple solution process of adding a magnesium precursor to a reductant solution and reacting, porous magnesium produced by the method, and hydrogen storage material containing hydrogen supported in the porous magnesium.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Ju Ho
Yang, Sae Lyne
Tilekbay, Bekzat
Suryapranata, Alex Tio
Abstract
A video editing method according to an embodiment of the present invention comprises: a preprocessing step; and a natural language parsing step of parsing an input natural language command by using a conversational natural language processing model and classifying same into any one of a temporal reference, a spatial reference that stores information on a natural language command capable of referring to the location or area of a video frame, an editing task reference that stores information on a natural language command capable of indicating a selectable editing task, and an editing parameter reference that stores information on a natural language command capable of referring to a specific parameter of a selected editing task.
H04N 21/435 - Processing of additional data, e.g. decrypting of additional data or reconstructing software from modules extracted from the transport stream
G06F 40/211 - Syntactic parsing, e.g. based on context-free grammar [CFG] or unification grammars
36.
METHOD FOR TRANSMITTING LAGUERRE-GAUSSIAN BEAMS USING MULTI-UNIFORM CIRCULAR ANTENNA, METHOD FOR RECEIVING LAGUERRE-GAUSSIAN BEAMS, AND COMMUNICATION SYSTEM USING MULTI-UNIFORM CIRCULAR ANTENNA
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Kang, Joonhyuk
Yoo, Seong Hoon
Park, Sang Uk
Abstract
Proposed is a communication system using a multi-uniform circular antenna. The system may include a transmission apparatus including at least one of transmission-side multi-uniform circular antennas configured to transmit a plurality of Laguerre-Gaussian (LG) beams. The system may also include a reception apparatus including at least one of reception-side multi-uniform circular antennas configured to receive the plurality of LG beams. A number of the at least one of the reception-side multi-uniform circular antennas may be set corresponding to a number of the at least one of the transmission-side multi-uniform circular antennas.
H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H04B 7/08 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
37.
METHOD FOR OBJECT INTERACTION IN EXTENDED REALITY, DEVICE FOR PERFORMING THE SAME, AND EXTENDED REALITY DISPLAY SYSTEM INCLUDING THE DEVICE
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Park, Jinah
Lee, Chanhyeok
Abstract
A device includes a first module configured to generate a point cloud of a target object based on a plurality of view vectors, a second module configured to generate a hand bubble based on a hand point and a hand point angle and a third module configured to generate an approximate sphere based on the point cloud and the hand bubble, and to determine a final interaction point of the target object based on the approximate sphere and a hand vector.
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
G06F 3/04815 - Interaction with a metaphor-based environment or interaction object displayed as three-dimensional, e.g. changing the user viewpoint with respect to the environment or object
G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
G06T 19/00 - Manipulating 3D models or images for computer graphics
38.
Compounds with nematicidal activity to pinewood nematode Bursaphelenchus xylophilus
A01N 43/16 - Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atom with one hetero atom six-membered rings with oxygen as the ring hetero atom
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Cho, Kwang-Hyun
Han, Younghyun
Abstract
A method for determining suitability of a drug administered for cell state transition, including: acquiring baseline states of actual cells, perturbed states of the actual cells to which the drug is administered, an initial cell state of a patient, and a target cell state representing the normal state of the patient's cells; encoding the baseline states, the perturbed states, the initial cell state, and the target cell state to generate latent baseline states, latent perturbed states, a latent initial cell state, and a latent target cell state, respectively; calculating a representative distance vector indicating distance between the latent baseline states and the latent perturbed states, and calculating a reference distance vector, which is the distance vector between the latent initial cell state and the latent target cell state; and determining suitability of the drug based on the degree of similarity between the representative distance vector and the reference distance vector.
G16H 20/10 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to drugs or medications, e.g. for ensuring correct administration to patients
G16H 50/20 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for computer-aided diagnosis, e.g. based on medical expert systems
40.
MOBILE WIRELESS OPTICAL COMMUNICATION RECEIVER FOR MAXIMUM RATIO COUPLING TO DAYLIGHT NOISE AND METHOD ASSOCIATED THEREWITH
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Lee, Hojae
Kim, Hoon
Park, Gihong
Lee, Sangrim
Nguyen, Thi Mat
Abstract
Provided are a method and a device used in an optical wireless communication (OWC) system. A receiver comprises an optical amplifier and detector that receives an optical signal including a target signal and/or daylight noise as an input to output baseband electrical signals for digital signal processing. The optical amplifier and detector comprises: (1) an optical amplifier that amplifies the optical signal; (2) an optical diplexer that filters the amplified optical signal into an in-band wavelength band and an out-of-band wavelength band, respectively; (3) an optical attenuator that receives the target signal present in the in-band wavelength band as an input and outputs an attenuated target signal; (4) a first photodetector that converts the attenuated target signal into a first baseband electrical signal; (5) an electric filter; and (6) a second photodetector that converts the daylight noise into a second baseband electrical signal.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Bonghoe
Ha, Jeongseok
Han, Seokju
Abstract
A communication device may: receive a signal and obtain a first bit sequence of a length N from the received signal; generate P-1 second bit sequences by applying P-1 different permutations to the first bit sequence; output P-1 third bit sequences on the basis of performing successive cancellation decoding on each of the P-1 second bit sequences); output an additional third bit sequence on the basis of the P-1 third bit sequences; and output results of the decoding on the basis of a reception bit sequence and P third bit sequences including the additional third bit sequence.
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Park, Hyuncheol
Jee, Jeongju
Abstract
Disclosed is a multi-base station-based cooperative integrated sensing and communication (ISAC) method and system using deep learning. A multi-base station-based cooperative ISAC method performed by a cooperative ISAC system may include inputting, to a second network, result data acquired from channel information acquired at each base station and location data of a target through a first network; and outputting a beamforming matrix for ISAC of each base station through the second network.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kang, Jiheong
Jang, Jinha
Park, Chan Beum
Abstract
An additive for a secondary battery and a lithium metal battery including the same are provided. The additive comprises an ionic liquid compound that includes a cation and an anion and is in a liquid state at an atmospheric pressure and at a temperature of 100° C. or less. The cation has a standard reduction potential lower than that of lithium cation (Li+) based on a standard hydrogen electrode (SHE) and has a structure in which an even number of aliphatic hydrocarbon groups having 3 or more carbon atoms identical to each other are bonded to a central element of the cation such that the cation has a symmetrical structure based on the central element. The additive is capable of suppressing dendritic lithium growth and induce uniform lithium growth on lithium metal thin films, thereby improving performance and life of the lithium metal battery.
H01M 10/0567 - Liquid materials characterised by the additives
H01M 4/02 - Electrodes composed of, or comprising, active material
H01M 4/134 - Electrodes based on metals, Si or alloys
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 10/0568 - Liquid materials characterised by the solutes
45.
MACHINE LEARNING-BASED BATTERY CHARGE/DISCHARGE CURRENT PREDICTION METHOD AND DEVICE FOR CHARGE/DISCHARGE STRATEGY FOR BATTERY THERMAL MANAGEMENT
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Koo, Yong Rack
Seo, Jun Yong
Lee, Bong Jae
Han, Ji Hye
Ryu, Mi Ran
Yoon, Seok Joon
Abstract
The present invention provides a method by which a computing device predicts a battery charge/discharge current, comprising the steps of: acquiring, according to a charge/discharge current profile of a battery, training data and verification data including a temperature profile; using the training data to train a machine learning model; using the verification data to verify and retrain the trained machine learning model; and using the machine learning model to predict a current profile according to the temperature profile of the battery.
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
46.
SYSTEM FOR SEARCHING OPTIMAL ROUTE FOR DELIVERY UAV IN CONSIDERATION OF CONNECTIVITY WITH BASE STATION AND HANDOFF COST
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Chung, Jaehoon
Im, Hyeon-Seong
Lee, Si-Hyeon
Kim, Kyu-Yeong
Abstract
An operation method of a terminal, according to the present disclosure, for determining a movement route of a terminal in a wireless communication system, comprises the steps of: transmitting a setup request signal to a first base station; receiving a setup response signal from the first base station on the basis of the setup request signal; setting a movement route on the basis of the setup response signal; receiving a reference signal from a second base station; and transmitting a measurement report to the second base station on the basis of the reference signal, wherein the movement route is determined on the basis of a handover cost and a connectable range in which the terminal can perform communication for at least one base station, wherein the connectable range can be updated through the measurement report.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Munchurl
Youk, Geunhyuk
Abstract
A method and device for restoring a video are disclosed. The method of restoring a video includes obtaining a plurality of blurred images due to the motion of an object captured in the video. The method includes generating a first kernel including degradation information on the plurality of blurred images, optical flow information on a moving direction of the object, and first motion information of the object included in the plurality of blurred images, based on the plurality of blurred images included in the video. The method includes generating dynamic filtering information to filter the plurality of blurred images, based on the plurality of blurred images, the first motion information, the optical flow information, and the first kernel. The method includes restoring a target image to be restored among the plurality of blurred images, based on the dynamic filtering information and the plurality of blurred images.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Yoon, Dong Ki
You, Ra
Lee, Changjae
Abstract
The present invention relates to a method of preparing a shape-reconfigurable micropatterned polymer haptic material using an electric field technique, and more particularly, to a method of preparing a shape-reconfigurable micro-patterned polymer thin film and a haptic material by controlling the orientation of a liquid-crystalline organic polymer using an electric field control system and inducing the generation of defect structures having a regular microstructure array in a polymer film.
H10N 30/078 - Forming of piezoelectric or electrostrictive parts or bodies on an electrical element or another base by depositing piezoelectric or electrostrictive layers, e.g. aerosol or screen printing by liquid phase deposition by sol-gel deposition
B06B 1/06 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
H10N 30/00 - Piezoelectric or electrostrictive devices
H10N 30/06 - Forming electrodes or interconnections, e.g. leads or terminals
H10N 30/079 - Forming of piezoelectric or electrostrictive parts or bodies on an electrical element or another base by depositing piezoelectric or electrostrictive layers, e.g. aerosol or screen printing using intermediate layers, e.g. for growth control
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Song Min
Ahn, Nam Jo
Kim, Min Seok
Abstract
Disclosed is a communication method using a meta-surface, the communication method including providing, by a base station, a control signal to a beam steering apparatus including a reconfigurable meta-surface; performing, by the beam steering apparatus, time synchronization with the base station by using the control signal; performing, by the beam steering apparatus, beam sweeping with a plurality of different beams formed by reconfiguring the meta-surface; and performing communication, by a user terminal, with the base station by using one of the plurality of beams swept by the beam steering apparatus, wherein the time synchronization, the beam sweeping, and the communication may be performed periodically.
H04B 7/04 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
H04B 7/0408 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Whang, Euijong
Park, Jaeyoung
Abstract
Disclosed are a method and device for fair few-shot CIL. The method includes constructing a separate storage device by using samples of a first super class having first accuracy and samples of a second super class having second accuracy lower than the first accuracy, performing incremental learning on the separate storage device, adjusting the number of samples of the first super class and the number of samples of the second super class in the separate storage device when the results of the incremental learning satisfy a fairness criterion or when the first accuracy is lower than the second accuracy in the results of the incremental learning, and performing incremental learning in a next step on the separate storage device.
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Kim, Yongdae
Oh, Taekkyung
Abstract
Provided is a method and system for tracking a physical location of a user equipment (UE) in a mobile communication network that may specify a physical location by monitoring an uplink signal of a target UE, the method including generating a specific traffic pattern by generating voice and short message service (SMS) traffic and tracking a radio network traffic identifier (RNTI) of a target UE using fingerprinting based on the specific traffic pattern; fixing the RNTI of the target UE and continuously receiving scheduling information on an uplink signal transmitted from the target UE by decoding a downlink control information (DCI) message transmitted from a base station; and tracking a physical location by monitoring the uplink signal of the target UE based on the scheduling information.
H04W 4/029 - Location-based management or tracking services
H04W 4/14 - Short messaging services, e.g. short message service [SMS] or unstructured supplementary service data [USSD]
H04W 72/21 - Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
52.
THIN-FILM LIQUID METAL ELECTRODE, ITS FABRICATING METHOD USING SEQUENTIAL DEPOSITION AND STRETCHABLE ELECTRONIC DEVICE USING THE ELECTRODE FABRICATED THEREFROM
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Lee, Jung-Yong
Han, Seungseok
Abstract
Provided are a thin-film liquid metal electrode, a method of fabricating the same using a sequential deposition, and a stretchable electronic device using the electrode fabricated therefrom. The thin-film liquid metal electrode may be applied to various application fields, such as a solar cell, a display, a biosensor, and a flexible/stretchable device using the thin-film liquid metal electrode by providing the thin-film liquid metal electrode in which at least two types of liquid metal nanoclusters are sequentially over-layered with an oxide film in therebetween and deposited as thin films on a surface-treated stretchable substrate in an over-layered structure, by fabricating the liquid metal nanoclusters in a no-direct contact structure, and by implementing negative piezoresistivity (NPR) property in which resistance decreases up to 85% during first 50% stretching since an additional electrical path is generated between two liquid metal nanoclusters as the oxide film is ruptured due to mechanical deformation.
H01B 1/02 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of metals or alloys
53.
ELECTROLYTE FOR LITHIUM SECONDARY BATTERIES AND LITHIUM SECONDARY BATTERIES COMPRISING THE SAME
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Nam, Hui Beom
Lee, Yoon Sung
Ban, Sung Ho
Lee, Tae Rim
Rhee, Jun Ki
Lee, Yong Ho
Choi, Nam-Soon
Moon, Hyeon Gyu
Abstract
In an electrolyte for the lithium secondary battery, which is used in forming protective layers on the surfaces of positive and negative electrodes, the electrolyte contains 1-vinyl-1,2,4-triazole additives. In the instant case, vinylene carbonate further contained in the additives stabilizes the protective layer on the surface of the negative electrode, and 1,3-propane sultone further contained in the additives stabilizes the protective layer on the surface of the positive electrode, thereby improving the long-term life performance and high-temperature life characteristics of the lithium secondary battery.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Yu, Jongwon
Kim, Seongjin
Lee, Hyowon
Abstract
The present invention relates to an operation method of a transmitter configured to transmit power to a receiver through three orthogonal transmission coils, the method comprising the steps of: calculating a target transmission current in a transmission module including each transmission coil for maximum transmission efficiency; determining the magnitude and phase of an input voltage capable of inducing the target transmission current in each transmission module by considering the mutual inductance between the transmission coils; and inducing the target transmission current in each transmission module through the input voltage determined for each transmission module.
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H03H 7/48 - Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source
55.
PHARMACEUTICAL COMPOSITION FOR PREVENTING OR TREATING COGNITIVE DYSFUNCTION OR DEGENERATIVE BRAIN DISEASE, COMPRISING SOMATOSTATIN OR DERIVATIVE THEREOF AND HESPERIDIN OR DERIVATIVE THEREOF
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Lee, Seung-Hee
Park, Bo Kyung
Abstract
The present invention relates to a pharmaceutical composition for preventing or treating cognitive dysfunction or degenerative brain disease, the composition comprising: somatostatin or a somatostatin derivative or a pharmaceutically acceptable salt thereof as a first active ingredient; and hesperidin or a hesperidin derivative or a pharmaceutically acceptable salt thereof as a second active ingredient. The composition comprising somatostatin or a somatostatin derivative and hesperidin or a hesperidin derivative as active ingredients according to one specific embodiment of the present invention not only improves behavior related to reduced cognitive ability and degenerative brain diseases, but also has a neuroprotective effect and the effect of alleviating cognitive dysfunction or degenerative brain diseases through decreased production of inflammatory transcription factors and increased production of anti-inflammatory transcription factors, and can thus be effectively used as a therapeutic agent for cognitive dysfunction or degenerative brain diseases.
A61K 31/352 - Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having six-membered rings with one oxygen as the only ring hetero atom condensed with carbocyclic rings, e.g. cannabinols, methantheline
A61K 31/7048 - Compounds having saccharide radicals and heterocyclic rings having oxygen as a ring hetero atom, e.g. leucoglucosan, hesperidin, erythromycin, nystatin
A61P 25/28 - Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
A23L 33/10 - Modifying nutritive qualities of foodsDietetic productsPreparation or treatment thereof using additives
METHOD FOR AUTOMATICALLY GENERATING SKETCH IMAGE, APPARATUS FOR AUTOMATICALLY GENERATING SKETCH IMAGE USING THE METHOD, AND COMPUTER READABLE MEDIUM HAVING PROGRAM FOR PROCESSING THE METHOD
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Noh, Junyong
Seo, Changwook
Abstract
A method for automatically generating a sketch image according to an embodiment may include inputting a color image, and extracting a shape data from the color image, inputting a reference image, and extracting a style data from the reference image, and outputting the sketch image based on the shape data and the style data.
G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersectionsConnectivity analysis, e.g. of connected components
G06V 10/46 - Descriptors for shape, contour or point-related descriptors, e.g. scale invariant feature transform [SIFT] or bags of words [BoW]Salient regional features
G06V 10/74 - Image or video pattern matchingProximity measures in feature spaces
G06V 10/774 - Generating sets of training patternsBootstrap methods, e.g. bagging or boosting
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Song Min
Ahn, Nam Jo
Kim, Min Seok
Abstract
Disclosed is a beam steering apparatus that reflects a beam for steering, the beam steering apparatus including a front end unit configured to receive a control signal; and a meta-surface with controllable unit cells arranged in an array, the unit cells including metal plates spaced apart from each other, a variable capacitance element connected between the metal plates, and a line to which a meta-surface control signal is provided; and a computation and control unit configured to generate a meta-surface control signal for controlling the meta-surface according to the control signal wherein the beam reflected from the meta-surface is steered according to the control signal.
H04B 7/04 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
H01Q 3/00 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Shin, Jang-Ho
Kum, Dong-Suk
Lim, Joon-Hee
Abstract
A path generation system for vehicular collision avoidance and mitigation generates a path with a lowest risk level of collision damage at the point in time at which an ego vehicle faces an imminent collision. The path generation system includes a neural network learning unit configured to output a terminal state of the ego vehicle based on information of the ego vehicle and information of surrounding vehicles. The path generation system may thus generate a path for minimizing damage to a driver and a passenger of the ego vehicle at the point in time at which the ego vehicle faces an imminent collision.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
NATIONAL CANCER CENTER (Republic of Korea)
Inventor
Choi, Jung Kyoon
Kim, Kyeong Hui
Jung, So Youn
Kong, Sun Young
Park, Jong Bae
Abstract
The present disclosure relates to an information provision method for predicting the prognosis of breast cancer by using immunosuppressive fibroblast activity measurement data. The information provision method for predicting the prognosis of breast cancer, according to the present invention, can predict the prognosis of breast cancer patients, and also provide various pieces of information that can further understand the breast cancer tumor ecosystem.
C12Q 1/6886 - Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for diseases caused by alterations of genetic material for cancer
60.
RECOMBINANT MICROORGANISM CAPABLE OF PRODUCING POLYHYDROXYALKANOATE AND METHOD FOR PRODUCING POLYHYDROXYALKANOATE USING THE SAME
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
EWHA UNIVERSITY - INDUSTRY COLLABORATION FOUNDATION (Republic of Korea)
Inventor
Lee, Sang Yup
Choi, So Young
Park, Si Jae
Son, Jin-A
Kim, Yujin
Kim, Chaerin
Yoon, Dohye
Abstract
The present invention relates to a recombinant microorganism capable of producing polyhydroxyalkanoate and a method for producing polyhydroxyalkanoate, using same and, more specifically, to: a recombinant microorganism in which a gene encoding an enzyme for converting amino acids into 2-hydroxy acids, a gene encoding hydroxyisocaproate-CoA transferase, and a gene encoding polyhydroxyalkanoate synthase are introduced or amplified; and a method for producing polyhydroxyalkanoate, using the recombinant microorganism.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION (Republic of Korea)
Inventor
Kim, Yoon Ki
Hwang, Hyun Jung
Boo, Sung Ho
Shin, Min-Kyung
Abstract
The present invention addresses a novel method for rapidly degrading a target mRNA, and is a technology for artificially binding a circular RNA having EJC to a target mRNA 3' UTR, thereby reducing the expression of a corresponding gene through selective degradation of the target mRNA.
C12N 15/113 - Non-coding nucleic acids modulating the expression of genes, e.g. antisense oligonucleotides
A61K 48/00 - Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseasesGene therapy
A61K 31/7088 - Compounds having three or more nucleosides or nucleotides
A61P 25/28 - Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Yoo, Changdong
Yoon, Eunseop
Yoon, Hee Suk
Abstract
Disclosed is a model training device including: an accent module trained to extract an accent feature from an audio feature of an utterance speech; and a prompt generator for extracting a first accent feature from a prompt concatenation input that concatenates the prompt to the audio feature, and a second accent feature from the audio feature by using the accent module, and being adversarially trained to minimize interdependence between the first accent feature and the second accent feature to generate a prompt from the audio feature.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Shin, Seung Won
Jin, Young Jin
Jang, Eu Gene
Yim, Da Yeon
Chung, Jin Woo
Lee, Yong Jae
Cui, Jian
Yoon, Chang Hoon
Yang, Seung Yong
Abstract
Provided is a system for training a language model for cybersecurity, which includes: a document collection unit that collects a cybersecurity document used for training a language model for cybersecurity; an extraction unit that identifies non-linguistic elements in the cybersecurity document based on a non-linguistic element database; a tokenization unit that tokenizes the cybersecurity document to generate a plurality of tokens; and a language model application unit that controls the language model to simultaneously perform a first task of classifying types of the non-linguistic elements including at least one of a Bitcoin address, a hash value, an IP address, and a vulnerability identifier included in the cybersecurity document and a second task of recovering only linguistic elements of the cybersecurity document.
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Hwang, Sung Ju
Lee, Ha Yeon
An, So Hyun
Kim, Min Seon
Abstract
The present disclosure relates to a method for training a deep learning model to search for an optimal architecture of a neural network for knowledge distillation. An information about a metadata set related to a first domain is obtained. An information about at least one candidate architecture of a neural network included in a search space using the information about the metadata set is obtained. A performance evaluation information about the at least one candidate architecture is output by inputting the information about the metadata set and the information about the at least one candidate architecture into the deep learning model. The deep learning model is trained through backpropagation to minimize a loss function that is determined on the basis of the performance evaluation information and label information included in the information about the metadata set.
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Son, Daeyong
Oh, Jongkil
Lee, Hyun Joo
Jeon, Sun Seo
Jeon, Hye Seong
Abstract
An embodiment water electrolysis catalyst includes iridium oxide including a rutile phase and iridium-nickel oxide including a hexagonal phase. An embodiment method of preparing a water electrolysis catalyst includes preparing a mixture including an iridium precursor, a nickel precursor, and cysteamine hydrochloride, drying the mixture, grinding the dried mixture, and firing a ground product, wherein the water electrolysis catalyst includes iridium oxide including a rutile phase and iridium-nickel oxide including a hexagonal phase.
C25B 11/091 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of at least one catalytic element and at least one catalytic compoundElectrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of two or more catalytic elements or catalytic compounds
C25B 1/04 - Hydrogen or oxygen by electrolysis of water
C25B 9/23 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
66.
METHOD AND DEVICE FOR TRANSMITTING INFORMATION, AND METHOD AND DEVICE FOR RECEIVING INFORMATION
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Bonghoe
Ha, Jeongseok
Han, Seokju
Abstract
The present method relates to a method by which a device transmits a signal in a communication system and to a device therefor, the method comprising the steps of: generating a first encoded bit sequence from an information bit sequence on the basis of a polar code; generating a second encoded bit sequence by puncturing the first encoded bit sequence, on the basis of a code rate; and transmitting the second encoded bit sequence, wherein the first encoded bit sequence is processed on the basis of a proposed puncturing pattern, and the puncturing pattern satisfies a nested property.
H03M 13/00 - Coding, decoding or code conversion, for error detection or error correctionCoding theory basic assumptionsCoding boundsError probability evaluation methodsChannel modelsSimulation or testing of codes
H03M 13/09 - Error detection only, e.g. using cyclic redundancy check [CRC] codes or single parity bit
67.
CHIP-SCALE ATOMIC CLOCK AND MANUFACTURING METHOD THEREFOR
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Park, Jongcheol
Na, Ye-Eun
Kim, Chaehwan
Kang, Il-Suk
You, Jong-Bum
Abstract
A chip-scale atomic clock, according to one embodiment of the present invention, comprises: a vapor cell comprising a semiconductor substrate having a cavity for receiving alkali metal vapor therein, an upper transparent substrate disposed on the upper surface of the semiconductor substrate, and a lower transparent substrate disposed on the lower surface of the semiconductor substrate; an upper alignment part disposed on the upper transparent substrate; and a lower alignment part disposed on the lower transparent substrate. The upper alignment part and the lower alignment part are in contact with each other, and the vapor cell is inserted into a recess formed in the upper alignment part and the lower alignment part so as to be aligned.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Chung, Jaehoon
Park, Junbeom
Kim, Song Min
Abstract
A method performed by a first node in a wireless communication system, according to one embodiment of the present disclosure, comprises the steps of: receiving, from a first base station (BS), a first signal including a legacy short training field (L-STF), a legacy long training field (L-LTF), and a legacy signal (L-SIG) field; acquiring, from the L-SIG field included in the first signal, information related to the transmission time of a second signal to be transmitted from a second BS to a second node; and performing back-off on the basis of the information related to the transmission time of the second signal, wherein the first signal can be generated through the steps of: adjusting a sampling rate for a wireless fidelity (Wi-Fi) signal; performing a fast Fourier transform (FFT) on the Wi-Fi signal with the adjusted sampling rate; demodulating the Wi-Fi signal on which FFT has been performed; and performing channel coding-related reverse engineering on the demodulated Wi-Fi signal.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Park, Yong-Hwa
Lee, Sunghyun
Lim, Yoonseop
Abstract
According to one embodiment of the present disclosure, a multipath interference correction system for a coaxial scanning LIDAR, includes a scanner driving unit configured to drive a scanner included in a coaxial scanning LIDAR and obtain a position signal of the scanner, a measurement light modulation signal input unit configured to obtain a demodulation signal of measurement light emitted from laser of the coaxial scanning LIDAR, a detection light input unit configured to receive detection light mixed with reflection light and multiple interference light from an avalanche photodiode of the coaxial scanning LIDAR and output a detection light signal, and a real-time processor for outputting a depth map based on the detection light signal, the demodulation signal of the measurement light, and the position signal of the scanner.
G01S 7/4915 - Time delay measurement, e.g. operational details for pixel componentsPhase measurement
G01S 17/36 - Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated with phase comparison between the received signal and the contemporaneously transmitted signal
G01S 17/894 - 3D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Yoon, Duk-Hyoung
Kim, Hee-Tak
Shin, Dongjae
Abstract
Provided are: an all-solid-state rechargeable battery comprising a positive electrode, a negative electrode, and a solid electrolyte layer disposed between the positive electrode and the negative electrode and including an inorganic solid electrolyte, wherein the negative electrode includes a patterned negative electrode current collector and a negative electrode coating layer disposed on the patterned negative electrode current collector and including a lithium-philic metal, a carbon material, or a combination thereof; and a manufacturing method thereof.
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Cho, Kwang Hyun
Gong, Jeong Ryeol
Kim, Ju Hee
Abstract
The present invention relates to a composition comprising a SETMAR inhibitor for preventing or treating cancer. It has been identified that if SETMAR is inhibited in cancer cells, carcinogenesis reversion, which is the differentiation of cancer cells into normal cells, is successfully achieved, and thus, unlike conventional anticancer agents that simply induce cancer cell death, the present invention can be effectively used as a treatment method excluding the side effect of normal cell death that can occur during anticancer treatment, and converting cancer cells into normal cells.
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Myung, Hyun
Marsim, Kevin Christiansen
Oh, Min Ho
Yu, Byeong Ho
Lee, Seung Jae
Abstract
A walking robot pose estimation method is provided. The walking robot pose estimation method according to an embodiment of the present disclosure includes the calculation a kinematic factor considering data measured by an inertial measurement unit (IMU) mounted on the walking robot and joint kinematics while the walking robot is in motion, obtaining point cloud data with respect to the environment where the walking robot is located by using the LiDAR sensor mounted on it, obtaining image data with respect to the environment where the walking robot is located by using the image sensor mounted on it, data fusion operation of the kinematic factor, the point cloud data, and the image data, and pose estimation of the walking robot based on the fused data.
B62D 57/032 - Vehicles characterised by having other propulsion or other ground-engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members with alternately or sequentially lifted supporting base and legVehicles characterised by having other propulsion or other ground-engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members with alternately or sequentially lifted feet or skid
73.
HYDROGEN STORAGE COMPOSITE FOR LOW PURITY HYDROGEN STORAGE AND MANUFACTURING METHOD THEREOF
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Cho, Eun Seon
Cho, Hyun
Abstract
The present invention relates to a hydrogen storage composite and a manufacturing method thereof. More specifically, the hydrogen storage composite of the present invention has a form in which a hydrogen permeation and oxidation prevention film for selectively separating only hydrogen molecules surrounds hydrogen storage particles, and is a composite in which an existing hydrogen purification process and a storage process are unified. The hydrogen storage composite can prevent oxidation and performance deterioration of the hydrogen storage particles due to oxidizing species gas, and can delay oxidation of the hydrogen storage particles and continuously store hydrogen even under a low-purity hydrogen environment.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Lee, Haeshin
Yang, Han-Yeol
Ju, Hyerin
Lee, Sun Hee
Abstract
The present invention relates to a multipurpose adhesive composition comprising a polymer coacervate formed by polyphenol action, the composition having excellent adhesion to cuticles and skin, being easily removable with water without irritation, and being easy for users to handle. The present invention provides the multipurpose adhesive composition comprising: a polyvinyl alcohol compound; a water-soluble polyphenol compound; and a solvent.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Cho, Eun Seon
Bang, Ki Ryuk
Shin, Ye Ji
Abstract
The present invention relates to an ion exchange membrane containing asymmetric ion channel units, and the ion exchange membrane is based on covalent organic frameworks (COFs) and contains ion channel units having different diameters, degrees of hydrophilicity, and charge characteristics, such that an ion exchange membrane having both excellent ion conductivity and ion selectivity may be produced.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Byon, Hye Ryung
Choi, Rak Hyeon
Abstract
The present invention relates to: a solid electrolyte for a lithium secondary battery; and a lithium secondary battery comprising same, the solid electrolyte comprising a covalent organic framework (COF) film solid electrolyte represented by chemical formula 1, having unit structures linked by a beta ketoenamine functional group, and comprising a lithium sulfonate functional group.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Donghwan
Choi, Junil
Lee, Hyeongtaek
Chung, Jaehoon
Abstract
The present disclosure is for performing communication by using a reconfigurable intelligent surface (RIS) in a wireless communication system. An operation method of a first base station may comprise the steps of: transmitting a reference signal to a first terminal; receiving, from the first terminal, first channel information measured on the basis of the reference signal; receiving second channel information from a second base station; determining a reflection pattern of a reconfigurable intelligent surface (RIS) on the basis of the first channel information and the second channel information; and transmitting a data signal to the first terminal.
H04B 7/04 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H04B 17/309 - Measuring or estimating channel quality parameters
H04B 7/024 - Co-operative use of antennas at several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Lee, Jae Hyuk
Choi, Chan Yong
Bae, Su Yeon
Choi, Eun Mi
Kim, Dae Sik
Kim, Hee Tak
Seok, Kyung Hwa
Abstract
The present invention relates to a method for reducing vanadium ions and a method for manufacturing an electrolyte for a vanadium redox battery using same, wherein in the reduction of vanadium ions, (A) a first reducing agent is added to a first vanadium compound solution having a first oxidation state, followed by reaction, thereby preparing a second vanadium compound solution having a second oxidation state lower than the first oxidation state; and (B) a second reducing agent and a catalyst are added to the second vanadium compound solution having the second oxidation state, followed by reaction, thereby preparing a third vanadium compound solution having a third oxidation state lower than the second oxidation state, wherein the first oxidation state is 4.5 to 5, the second oxidation state is 4.1 to 4.4, and the third oxidation state is 3 to 4 (exclusive).
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Kum, Dongsuk
Syamil, Abi Rahman
Jang, Hanbin
Abstract
Disclosed is a method and system for real-time model predictive control-based planning of an autonomous vehicle based on identification and classification learning of constraints. A real-time model predictive control-based planning method may include generating a class prediction decision value that determines an upper bound and a lower bound of constraints in an optimal control problem through an observation value for a driving environment; and receiving the class prediction decision value and the observation value from the driving environment and generating a main trajectory.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
S2W INC. (Republic of Korea)
Inventor
Shin, Seung Won
You, Myoung Sung
Suh, Sang Duk
Yoon, Chang Hoon
Kim, Yeon Keun
Abstract
According to the present specification, a method for inspecting a high-speed network packet payload by a terminal includes: a step of receiving L7 (Layer 7) policy related to containers from a user; a step of extracting string patterns to be inspected for each of the containers on the basis of the L7 policy through a pattern compiler; a step of creating a deterministic finite automaton (DFA) on the basis of the extracted string patterns through the pattern complier; and a step of converting a state transition table of the deterministic finite automaton into a match-action table through the pattern compiler and storing the match-action table in an eBPF (extended Berkeley Packet Filter) map for a payload inspection engine.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Sanha
Yang, Inyeong
Won, Dongyeon
Abstract
The present invention relates to a negative electrode for a lithium-free secondary battery, which can reduce galvanic corrosion and side reactions on the negative electrode while being lightweight and thin and enables uniform electrodeposition of lithium metal, and a manufacturing method therefor, wherein the negative electrode for a lithium-free secondary battery is characterized by comprising: a porous metal layer having a three-dimensional microstructure; and a conductive carbon nanostructure formed on the porous metal layer, wherein the porous metal layer comprises a metal mesh layer in which a fibrous metal having a micron-scale diameter forms a network structure, and a metal nanostructure formed on the fibrous metal, and at least some parts of the metal nanostructure are connected to each other to define a plurality of pores on the porous metal layer.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Seong Been
Byeon, Jae Ho
Lee, Jin Woo
Kim, Sung Min
Shin, Sang Rim
Woo, Jin Woo
Kang, Kyoung Woong
Lee, Min Zae
Abstract
Disclosed is a catalyst for a hydrogen evolution reaction or a hydrogen oxidation reaction, which can be used under alkaline conditions and has significantly improved kinetic properties compared to conventional commercially-available platinum catalysts. The present invention provides a catalyst for electrochemical hydrogen reactions under alkaline conditions, which has 2 to 20 ruthenium atoms supported in an ensemble form on the surface of a molybdenum carbide-carbon nanocomposite support, and a manufacturing method therefor, and a ruthenium-based catalyst electrode comprising the catalyst, which can be used as an electrode for anion exchange membrane-based water electrolysis cells and fuel cells.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Do Kyung
Ponraj, Rubha
Abstract
Disclosed are a secondary battery and a method for manufacturing the secondary battery. A secondary battery according to one aspect of the present invention comprises: a positive electrode unit; a negative electrode unit; and an electrolyte unit disposed between the positive electrode unit and the negative electrode unit, wherein the positive electrode unit comprises a positive electrode current collector made of a first metal material, a positive electrode active material including lithium, and a lithium alloy layer interposed between the positive electrode current collector and the positive electrode active material and formed by an alloy of the first metal of the positive electrode current collector and lithium.
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/02 - Electrodes composed of, or comprising, active material
84.
A PRESSURE-SENSITIVE BIOADHESIVE FOR WET TISSUES AND ORGANS
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Lee, Yuhan
Karp, Jeffrey M.
Park, Seongiun
Nam, Kum Seok
Park, Geonhu
Kim, Yeji
Hwang, Kiwook
Abstract
A pressure-sensitive adhesive (PSA), method of manufacturing a PSA, and various uses thereof synergistically combines the advantages of viscoelastic PSAs and bioadhesives. Enabled by a one-pot scalable copolymerization of a polyester and hydrophilic polymer, the PSA provides near-instant (~ 1 s), robust, and repeatable (over 1,000 times) adhesion to wet biological tissues (i.e., skin, lung, heart) and engineering (i.e., metals, plastics) substrates without prior surface functionalization.
A61F 13/0246 - Adhesive bandages or dressings characterised by the skin-adhering layer
C09J 167/03 - Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the hydroxy and the carboxyl groups directly linked to aromatic rings
C09J 7/25 - PlasticsMetallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
85.
METHOD FOR PRODUCING CHEMICALLY RECYCLABLE POLY(VINYL ALCOHOL) COPOLYMER THROUGH RING-OPENING METATHESIS POLYMERIZATION OF CYCLOHEXENE DERIVATIVES
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Hong, Soon Hyeok
Choi, Kyungmin
Abstract
The present invention relates to a method for producing a chemically recyclable polyvinyl alcohol copolymer through ring-opening metathesis polymerization of cyclohexene derivatives, wherein the ring strain energy of cyclohexene monomers is increased using trans-fused cyclic carbonate groups to perform ring-opening metathesis polymerization (ROMP) while efficiently controlling same to produce a polyvinyl alcohol copolymer with a well-defined structure of 1,2-diol per six carbon atoms and exhibiting high hydrolytic stability, excellent oxygen protective properties, and processability. In addition, the polyvinyl alcohol copolymer can be chemically recycled into 1,2-diol containing cyclohexene through the ring-closing metathesis of the polyvinyl alcohol polymer, and useful compounds, including industrially useful α,ω-dialdehyde compounds, can be produced by chemically cleaving 1,2-diol groups.
C08G 61/12 - Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
C07C 29/48 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by oxidation reactions with formation of hydroxy groups
C07C 45/27 - Preparation of compounds having C=O groups bound only to carbon or hydrogen atomsPreparation of chelates of such compounds by oxidation
C07C 51/16 - Preparation of carboxylic acids or their salts, halides, or anhydrides by oxidation
C08J 11/16 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with inorganic material
H01M 10/0565 - Polymeric materials, e.g. gel-type or solid-type
86.
STRUCTURE FOR PENETRATING ACOUSTIC BARRIER IN A BROADBAND FREQUENCY RANGE
KOREAN ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Jeon, Wonju
An, Junyong
Lee, Kiyong
Kim, Chankyu
Abstract
The present disclosure relates to a structure attached to front interface for acoustic barrier penetration in broadband frequency range and, in more detail, relates to a structure that is composed of an impedance matching layer minimizing wave energy reflection between a background medium and an acoustic barrier and a wave interference control layer for controlling multiple reflection in the acoustic barrier and is attached to a front surface of an acoustic barrier, thereby being able to improve convenience and implement high transmittance in a wide frequency band.
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Kim, Song Min
Shim, Seung Woo
Shin, Hyeon Ho
Abstract
A low-resolution imaging apparatus configured to form and transmit a low-resolution image of an object, includes: a low-resolution camera configured to form the low-resolution image of the object; a microcontroller including an analog-to-digital convertor (ADC) that converts the low-resolution image into a digital image; an energy harvesting module configured to provide power to the low-resolution camera and the microcontroller; and a radio frequency identification (RFID) unit configured to transmit the digital-converted low-resolution image. The microcontroller extracts pixel values of pixels at the same position in two consecutive frames of the low-resolution image formed by the low-resolution camera, and calibrates the low-resolution image by adjusting exposure of the pixels in which a difference between the extracted pixel values is greater than a threshold value.
G06V 10/77 - Processing image or video features in feature spacesArrangements for image or video recognition or understanding using pattern recognition or machine learning using data integration or data reduction, e.g. principal component analysis [PCA] or independent component analysis [ICA] or self-organising maps [SOM]Blind source separation
G06V 10/62 - Extraction of image or video features relating to a temporal dimension, e.g. time-based feature extractionPattern tracking
G06V 10/774 - Generating sets of training patternsBootstrap methods, e.g. bagging or boosting
H04N 7/18 - Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
H04N 23/65 - Control of camera operation in relation to power supply
H04N 23/72 - Combination of two or more compensation controls
H04N 23/73 - Circuitry for compensating brightness variation in the scene by influencing the exposure time
H04N 23/741 - Circuitry for compensating brightness variation in the scene by increasing the dynamic range of the image compared to the dynamic range of the electronic image sensors
88.
LEARNING DEVICE, LEARNING METHOD, AND TEST DEVICE AND TEST METHOD USING SAME
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Joung, Sung Hun
Yoon, Kuk Jin
Jeong, Jae Woo
Kim, Ji Hun
Abstract
In a learning device and learning method, and a test device and a test method using the same, the learning device includes an encoder that outputs a main encoding feature, and a peripheral encoding, a cylindrical feature mapping device that maps the main encoding feature and the peripheral encoding feature to a first cylindrical shell to a n-th cylindrical shell, and outputs an integrated shell feature including a main feature and a peripheral feature, a cylindrical transformer that updates the integrated shell feature by modifying a value of the main feature with reference to the peripheral feature, a decoder that outputs predicted main depth information, and a parameter update device, that is configured to determine a first loss, and updates at least some of parameters of the encoder, the cylindrical feature mapping device, the cylindrical transformer, and the-decoder by use of the first loss.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Lee, Sang Yup
Cho, In Jin
Abstract
The present invention relates to recombinant bacteria to which a novel lipid peroxidation system has been applied and a method for preparing a biofuel and a biopolymer using same. The artificial lipid peroxidation system of the present invention can be used to prepare ultra-high concentrations of free fatty acids through artificial lipid peroxidation without cell death, and a biofuel and a biopolymer can be prepared therefrom. In addition, the artificial lipid peroxidation system according to the present invention increases intracellular redox energy density and can thus additionally promote carbon dioxide fixation. Accordingly, it is possible to prepare increased quantities of a biofuel and a biopolymer.
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Kim, Song Min
Shim, Seung Woo
Shin, Hyeon Ho
Abstract
A low-resolution imaging apparatus configured to form and transmit a low-resolution image of an object, includes: a low-resolution camera configured to form the low-resolution image of the object; a microcontroller including an analog-to-digital convertor (ADC) that converts the low-resolution image into a digital image; an energy harvesting module configured to provide power to the low-resolution camera and the microcontroller; and a radio frequency identification (RFID) unit configured to transmit the digital-converted low-resolution image. The microcontroller extracts pixel values of pixels at the same position in two consecutive frames of the low-resolution image formed by the low-resolution camera, and calibrates the low-resolution image by adjusting exposure of the pixels in which a difference between the extracted pixel values is greater than a threshold value.
G06V 10/77 - Processing image or video features in feature spacesArrangements for image or video recognition or understanding using pattern recognition or machine learning using data integration or data reduction, e.g. principal component analysis [PCA] or independent component analysis [ICA] or self-organising maps [SOM]Blind source separation
G06V 10/62 - Extraction of image or video features relating to a temporal dimension, e.g. time-based feature extractionPattern tracking
G06V 10/774 - Generating sets of training patternsBootstrap methods, e.g. bagging or boosting
H04N 7/18 - Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
H04N 23/65 - Control of camera operation in relation to power supply
H04N 23/72 - Combination of two or more compensation controls
H04N 23/73 - Circuitry for compensating brightness variation in the scene by influencing the exposure time
H04N 23/741 - Circuitry for compensating brightness variation in the scene by increasing the dynamic range of the image compared to the dynamic range of the electronic image sensors
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Cho, Gyu Hyeong
Huh, Yeun Hee
Shin, Se Un
Choi, Sung Won
Ju, Yong Min
Lim, Sang Jin
Abstract
The present invention relates to a multi-path converter, which adds a current transfer path using a capacitor to a current transfer path using an inductor to supply a current that is output to an output end (load) to a plurality of parallel paths, thereby reducing a total RMS current flowing through the inductor, and a control method therefor.
H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
92.
ELECTRONIC DEVICE FOR PREDICTING CHARACTERISTIC OF SEMICONDUCTOR DEVICE AND OPERATING METHOD OF ELECTRONIC DEVICE
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Hwang, Seonghyeon
Whang, Euijong
Kwak, Hyunsoo
Ryu, Sung Yoon
Lee, Sooseok
Sohn, Younghoon
Abstract
A method of operating an electronic device includes selecting, by at least one processor, M first sample-label pairs (M being a positive integer); obtaining, by the at least one processor, M K-values; selecting, by the at least one processor, M second sample-label pairs respectively corresponding to the M first sample-label pairs based on the M K-values, generating, by the at least one processor, M third sample-label pairs based on the M first sample-label pairs and the M second sample-label pairs, and training, by the at least one processor, a regression analysis module based on the M third sample-label pairs, and the regression analysis module is trained to predict labels, which are associated with the semiconductor device, from the M third sample-label pairs.
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Rhu, Minsoo
Bang, Jehyeon
Abstract
Disclosed is a method and apparatus for predicting a training time. The method includes generating a first execution graph representing a distributed learning process of a neural network model, wherein the first execution graph includes a computation node representing a repeated computation of the neural network model based on a parallelism technique; generating a second execution graph based on the first execution graph and a target operator corresponding to the computation node, wherein the second execution graph includes an execution time of a hardware kernel performing the target operator; and predicting a training time of the neural network model based on the second execution graph.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Dongjin
Jung, Kangjae
Yu, Jong-Won
Kim, Seong-Jin
Kim, Jeong-Wook
Abstract
According to embodiments, provided is an antenna comprising: a substrate of a square shape including first to fourth corners; a radiation unit disposed on the substrate and including a first radiation unit and a second radiation unit that radiate a wireless signal; a first feed line that applies the wireless signal to the first radiation unit; a second feed line that applies the wireless signal to the second radiation unit and has an extension line that perpendicularly intersects with an extension line of the first feed line; and a ground portion disposed on the substrate and spaced apart from the radiation unit and having at least a portion of a boundary area including a step shape, wherein the ground unit includes a shared ground unit that is disposed diagonally from a first edge to a third edge, is located between the first radiation unit and the second radiation unit, and performs impedance matching of the first radiation unit and the second radiation unit.
H01Q 5/335 - Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Heejung
Park, Seongjun
Jo, Kyunghyun
Abstract
The present disclosure relates to a bio-stimulation apparatus. The bio-stimulation apparatus according to one embodiment of the present disclosure may comprise: a plurality of electrodes: a plurality of driving units electrically, each connected to each of the plurality of electrodes so as to supply alternating current; and a control unit, wherein the control unit divides the plurality of electrodes into a first group and a second group on the basis of a first position in a region corresponding to the plurality of electrodes, divides the plurality of electrodes into a third group and a fourth group on the basis of a second position in the region corresponding to the plurality of electrodes, controls a first driving unit, corresponding to a first electrode included in the first group and the third group, such that a first alternating current having a first frequency and a third alternating current having a third frequency flow through the first electrode, controls a second driving unit, corresponding to a second electrode included in the second group and the third group, such that a second alternating current having a second frequency and the third alternating current flow through the second electrodes, controls a third driving unit, corresponding to a third electrode included in the first group and the fourth group, such that the first alternating current and a fourth alternating current having a fourth frequency flow through the third electrode, and controls a fourth driving unit, corresponding to a fourth electrode included in the second group and the fourth group, such that the second alternating current and the fourth alternating current flow through the fourth electrode, each of the first group to the fourth group includes two or more from among the plurality of electrodes, the number of electrodes included in the first group and the number of electrodes included in the second group correspond to the first position, and the number of electrodes included in the third group and the number of electrodes included in the fourth group correspond to the second position.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Heejung
Kim, Dongwon
Park, Seongjun
Jo, Kyunghyun
Abstract
The present disclosure relates to a biostimulation device. The biostimulation device according to an embodiment of the present disclosure may comprise: multiple electrodes; multiple driving units electrically connected to the multiple electrodes, respectively, so as to supply an alternating current; and a control unit. The control unit may determine multiple first electrodes corresponding to a first frequency and multiple second electrodes corresponding to a second frequency, among the multiple electrodes; may control multiple first driving units corresponding to the multiple first electrodes so that a first alternating current having the first frequency flows through the multiple first electrodes; and may control multiple second driving units corresponding to the multiple second electrodes so that a second alternating current having the second frequency flows through the multiple second electrodes. The number of the multiple first electrodes and the number of the multiple second electrodes may correspond to a predetermined position of an area corresponding to the multiple electrodes.
Korea Advanced Institute of Science and Technology (Republic of Korea)
Inventor
Cho, Yeongon
Han, Yunki
Kim, Lee-Sup
Abstract
Embodiments of the present disclosure describe a processing apparatus that may obtain embedding information of a first node to be added to a graph and connection information between the graph and the first node, receive, supernode information for a supernode of a compressed graph corresponding to the graph, wherein the supernode includes a plurality of nodes from the graph, and generate modified embedding information of the first node based on the supernode information, the initial embedding information, and the connection information using a graph convolutional network (GCN) model.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Lee, Hyun Joo
Shin, Sang Yong
Kwon, Jae Hoon
Nam, Jeong Hyun
Abstract
An embodiment of the present invention provides a carbon-embedded platinum-transition metal alloy sub-nano cluster catalyst and a manufacturing method thereof, wherein the catalyst is an oxygen reduction reaction catalyst for a hydrogen fuel cell, and reduces platinum usage and has high durability due to being produced in a form wherein platinum nano particles are inserted into the surface of a carbon carrier and embedded.
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kang, Jiheong
Chong, Jooyeun
Abstract
The present invention relates to a highly conductive tissue-like hydrogel adhesive that provides a hydrogel having three-dimensional nanofibers including a double network in which a soft and stretchable polyacrylic acid network and a conductive PEDOT:PSS network are uniformly formed along the polyacrylic acid network, thereby exhibiting excellent adhesive properties, as well as physical properties similar to living tissue, high stretchability, and high electrical properties, and a manufacturing method thereof.
C09J 133/02 - Homopolymers or copolymers of acidsMetal or ammonium salts thereof
A61B 5/259 - Means for maintaining electrode contact with the body using adhesive means, e.g. adhesive pads or tapes using conductive adhesive means, e.g. gels
A61B 5/268 - Bioelectric electrodes therefor characterised by the electrode materials containing conductive polymers, e.g. PEDOT:PSS polymers
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Jeon, Wonju
Ryoo, Hyeonbin
Kim, Jiwan
Abstract
The present invention relates to a broadband sound absorption device using area division, the device comprising: Helmholtz resonators including a neck portion and a cavity portion connected to the neck portion and having a predetermined area and thickness; and a unit sound absorber including at least one pair of the Helmholtz resonators, wherein a plurality of unit absorbers are arranged on a plane or curved surface, and the plurality of sound unit absorbers are formed to have cavity portions with different areas to minimize the thickness while enabling sound absorption for a wider band.