ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Woo, Seong Ho
Lee, Hyun Wook
Kim, Dae Sik
Lee, Sung Kook
Kim, Ji Young
Lee, Bo Ram
Park, Chang Hyun
Jung, Uk Hyun
Abstract
An apparatus for diagnosing a battery, the apparatus including a processor; and a memory storing instructions that, when executed on the processor, cause the processor to perform: generating a plurality of cross-sectional images of the battery from a three-dimensional (3D) image of the battery; plotting a plurality of points according to pixel values of a cross-sectional image of the plurality of cross-sectional images on the cross-sectional image to generate plot data in which at least some of the points are rounded; generating a two-dimensional (2D) flat image, in which the 3D image of the battery is spread out, by linearizing the generated plot data; and diagnosing the battery based on the generated 2D flat image.
G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
G06T 3/067 - Reshaping or unfolding 3D tree structures onto 2D planes
2.
APPARATUS AND METHOD FOR DIAGNOSING BATTERY, AND COMPUTER PROGRAM
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Woo, Seong Ho
Lee, Hyun Wook
Kim, Dae Sik
Lee, Sung Kook
Kim, Ji Young
Lee, Bo Ram
Park, Chang Hyun
Jung, Uk Hyun
Abstract
An apparatus for diagnosing a battery, the apparatus including a processor; and a memory storing instructions that, when executed on the processor, cause the processor to perform: generating a plurality of cross-sectional images of the battery from a three-dimensional (3D) image of the battery; plotting a plurality of points according to pixel values of a cross-sectional image of the plurality of cross-sectional images on the cross-sectional image to generate plot data in which at least some of the points are rounded; generating a two-dimensional (2D) flat image, in which the 3D image of the battery is spread out, by linearizing the generated plot data; and diagnosing the battery based on the generated 2D flat image.
G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
G06T 3/067 - Reshaping or unfolding 3D tree structures onto 2D planes
3.
APPARATUS AND METHOD FOR DIAGNOSING BATTERY, AND COMPUTER PROGRAM
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Woo, Seong Ho
Lee, Hyun Wook
Kim, Dae Sik
Lee, Sung Kook
Kim, Ji Young
Lee, Bo Ram
Park, Chang Hyun
Jung, Uk Hyun
Abstract
An apparatus for diagnosing a battery includes a processor; and a memory storing instructions that, when executed on the processor, cause the processor to perform: generating a plurality of cross-sectional images of the battery from a three-dimensional (3D) image of the battery; plotting a plurality of points according to pixel values of a cross-sectional image of the plurality of cross-sectional images on the cross-sectional image to generate plot data in which at least some of the points are rounded; generating a two-dimensional (2D) flat image, in which the 3D image of the battery is spread out, by linearizing the generated plot data; and diagnosing the battery based on the generated 2D flat image.
G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
G06T 3/067 - Reshaping or unfolding 3D tree structures onto 2D planes
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Rodney, Ruoff
Abstract
The present invention relates to a method for dissolving atoms in a metal, and provides a method for easily dissolving atoms in a metal having low solubility for the atoms by using, as a mediator, a metal which has high solubility for the atoms. Thus, elements such as carbon (C), boron (B), and nitrogen (N) can be stably introduced into metals in which these elements cannot be dissolved by using existing techniques or have very low solubility, thereby enabling the synthesis of new compounds and doped metals or alloys, resulting in improved physical properties of a metal, for example, properties such as strength, corrosion resistance, and conductivity.
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Song, Jong Chan
Kim, Won Keun
Shin, Jae Wook
Shin, Sung Hee
Ryu, Kyoung Han
Ha, Seong Min
Kang, Seok Ju
Baek, Kyung Eun
Abstract
Disclosed are a method of manufacturing a composite anode for a lithium ion battery and a composite anode for a lithium ion battery manufactured thereby. According to the method provide herein, since a metal catalyst precursor is reduced using Joule heating to obtain a carbon-metal catalyst composite layer, composite anode for a lithium ion battery having a large area in a short period of time can be provided, which is excellent in terms of economic feasibility. Further, since it is possible to manufacture a composite anode for a lithium ion battery with the improved lithium electrodeposition density and reversibility of lithium ions, a composite anode for a lithium ion battery having high capacity and improved life stability can be obtained.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Shin, Hyun Seo
Cho, Joo Yong
Kim, Su Jin
Yang, Bo Na
Kang, Geun Hee
Ryu, Ja Hyoung
Kim, Do Hyun
Park, Ga Eun
Yang, Gyeong Seok
Choi, Eun Seong
Abstract
A composition for the surface treatment of a polymer material includes a hyperbranched polyglycerol comprising a glycidol-derived repeating unit and an unsubstituted or substituted acrylate group at least at one end thereof. The composition has the effect of suppressing fibrosis, thrombus formation, or inflammatory cell adsorption by preventing proteins from being adsorbed to the surface of a polymer material that is surface-treated with the composition or an in-vivo implantation material including a polymer material.
C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
C08G 83/00 - Macromolecular compounds not provided for in groups
C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
7.
ELECTRONIC DEVICE FOR ADJUSTING DISPLAY COLOR AND CONTROL METHOD THEREFOR
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Seo, Guiwon
Ko, Minjeong
Kwak, Youngshin
Kim, Jonghwan
Moon, Youngsu
Abstract
An electronic device is disclosed. The electronic device includes a display; memory, the memory storing a first spectrum information of the display and information on a plurality of color matching functions (CMFs); and at least one processor connected with the memory, wherein the at least one processor is configured to: obtain picture spectrum information of a test image based on a second spectrum information of an external display device displaying the test image, obtain test images based on the picture spectrum information, the first spectrum information, and the information on the plurality of CMFs, wherein the test images comprise a respective test image for each of the plurality of CMFs corresponding to the test image, and control the display to display the test images.
G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
G06T 7/90 - Determination of colour characteristics
8.
CATHODE ACTIVE MATERIAL FOR ALL-SOLID-STATE BATTERY COMPRISING COATING LAYER INCLUDING TERNARY OXIDE AND METHOD OF MANUFACTURING SAME
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Ha, A Reum
Seong, Ju Yeong
Kim, Yong Gu
Song, In Woo
Min, Hong Seok
Yoon, Yong Sub
Kim, Yun Sung
Noh, Sung Woo
Jang, Yong Jun
Lee, Sang Heon
Cho, Jae Phil
Lee, Hyo Myoung
Abstract
A cathode active material for an all-solid-state battery includes: active material particles; and a coating layer covering at least a portion of the surface of the active material particles, wherein the coating layer includes lithium (Li), niobium (Nb), and at least one element selected from the group consisting of vanadium (V), zirconium (Zr) and combinations thereof.
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 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
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
9.
METHOD FOR SEPARATING CARBON ISOTOPES USING ELECTROMIGRATION
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Rodney, Ruoff
Seong, Won Kyung
Abstract
The present invention relates to an apparatus for separating carbon isotopes and a method for separating carbon isotopes using same. Specifically, the apparatus for separating carbon isotopes according to an aspect of the present invention comprises: a pocket part which is composed of a magnetic metal to store a carbon mixture in the center portion thereof; an electrode connection part at both ends; and a graphite precipitation part between the pocket part and the electrode connection part, wherein carbon isotopes can be efficiently separated and concentrated through electromigration.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Rodney, Ruoff
Pavel, Bakharew
Abstract
The present invention relates to: a carbon isotope separation apparatus using an electron beam heating method; and a carbon isotope separation method using same. Specifically, a carbon isotope separation apparatus according to one aspect comprises: a high vacuum electron beam chamber: a magnetic metal cylinder provided in the high vacuum electron beam chamber and including a carbon mixture storage unit on the upper surface thereof; and a water cooled sample holder in contact with the lower surface of the magnetic metal cylinder, and can efficiently separate and concentrate carbon isotopes
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Li, Ju
Yoon, Moonsu
Dong, Yanhao
Cho, Jaephil
Abstract
A mechanochemical process to synthesize single-crystalline cathode powders for the formation of cathodes in a lithium-ion battery includes mixing a transient metal oxide precursor with a lithium salt mixture. Thereafter, a mechanical agitation process may be applied to selectively melt the lithium salt mixture to form a molten salt liquid that wets, corrodes, and separates the grain boundaries of secondary particles in the transient metal oxide precursor. As a result, the secondary particles are deagglomerated resulting in a colloidal dispersion of primary particles. The mixture is then calcined to facilitate growth of single-crystalline particles from the primary particles, thus forming a single-crystalline cathode powder. The single-crystalline particles exhibit large particle size and little to no phase separation, thus improving electrochemical performance. This highly scalable process can be used to synthesize single-crystalline cathode powders from chemical-grade precursors or black mass.
SYNTHESIS OF PHOTODEGRADABLE IRON NITROSYL COMPLEX AND DEVELOPMENT OF PHARMACEUTICAL COMPOSITION FOR PREVENTION OR TREATMENT OF VASCULAR DISEASES, USING SAME
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
THE ASAN FOUNDATION (Republic of Korea)
UNIVERSITY OF ULSAN FOUNDATION FOR INDUSTRY COOPERATION (Republic of Korea)
Inventor
Cho, Jaeheung
Lee, Junyeop
Choe, Jisu
Abstract
The present invention relates to a compound represented by chemical formula 1 or a pharmaceutically acceptable salt thereof, a compound represented by chemical Formula 2 or a pharmaceutically acceptable salt thereof, a preparation method thereof, and uses of the compound represented by chemical formula 2 or a pharmaceutically acceptable salt thereof. The compound represented by chemical formula 2 or a pharmaceutically acceptable salt thereof exhibits the effect of releasing nitric oxide in vivo upon light stimulation, thereby dilating blood vessels.
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Cho, Yoon-Kyoung
Summit, Kumar
Abstract
The present invention relates to a nano-vesicle reactor and a method for producing the same. Specifically, the present invention provides a composition for producing a nano-vesicle reactor, characterized by comprising a first vesicle containing a first receptor on its surface and a second vesicle containing a second receptor on its surface, wherein the first receptor and the second receptor are bound with each other through a ligand system so that the first vesicle and the second vesicle are fused to form the nano-vesicle reactor; and a method for producing the above nano-vesicle reactor. The nano-vesicle reactor of the present invention can be utilized in production of energy inside a cell through cellular enzymatic reaction, a drug delivered system, and a diagnostic system.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Noh, Sam Hyuk
Lee, Eun Jae
Park, Hyun Seung
Kim, Jae Ho
Abstract
There is provided a method of classifying data by lifespan according to the number of times of moving data to improve performance and lifespan of a flash memory-based SSD. The method includes: a number of movements tracking step of tracking the number of times of moving a plurality of pages having data written therein from an arbitrary block to another block by Garbage Collection (GC) in the flash memory-based solid-state drive (SSD) starting from a time point of initial writing until a time point of invalidation of erasing or overwriting, by software mounted on a computer system; and a separation group forming step of forming separation groups by grouping one or more pages having the same number of times of moving data among the plurality of pages into one or more blocks by the software.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kwack, Younghwan
Yang, Jaekyung
Son, Seongho
Lee, Yongsoo
Jung, Jeehoon
Park, Hwapyeong
Kim, Mina
Abstract
An induction heat cooking apparatus that includes: a rectifier that is configured to convert alternating current (AC) voltage supplied from an external power source into direct current (DC) voltage; an inverter that is configured to generate current based on DC voltage received from the rectifier and provide the current to output nodes; heating coils that are configured to, based on the current generated by the inverter, generate magnetic fields for providing heat; a first capacitive unit that includes one or more resonance capacitors and that is coupled between the output nodes; a second capacitive unit that includes one or more wireless power transfer (WPT) capacitors and that is configured to be coupled between the output nodes; and a mode conversion switch that is configured to couple the second capacitive unit to the first capacitive unit in parallel is disclosed.
H02M 3/06 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider
H02M 7/10 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode arranged for operation in series, e.g. for multiplication of voltage
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Grzybowski, Bartorz
Cybulski, Olgierd
Quintana, Cristobal
Abstract
The present invention pertains to a method for selectively separating specific metals from a metal mixture-containing leachate by using a rotary reactor, the method comprising the steps in which: an aqueous feed phase, which includes the metal mixture-containing leachate, an organic phase, which is formed adjacent to the aqueous feed phase and includes at least one organic extractant for selectively extracting specific metals from the aqueous feed phase, and an aqueous receiving phase, which is formed adjacent to the organic phase, are formed as concentric layers inside a rotating reactor; and the organic extractant in the organic phase transfers specific metals from the aqueous feed phase to the aqueous receiving phase by acting as a molecular shuttle between the aqueous feed phase/organic phase interface and the organic phase/aqueous receiving phase interface.
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Kim, Ko Eun
Nam, Hui Beom
Ban, Sung Ho
Lee, Yoon Sung
Oh, Seung Min
Rhee, Jun Ki
Kim, Dong Uk
Lee, Seung Min
Kim, Hyeong Jun
Hong, Sung You
Jeong, Seo Young
Kwak, Sang Kyu
Abstract
The present disclosure relates to an electrolyte solution for a lithium secondary battery capable of improving the output and lifespan characteristics at high temperature of a lithium secondary battery, and a lithium secondary battery including the same. An electrolyte solution for a lithium secondary battery includes a lithium salt, a solvent, and a functional additive, wherein the functional additive includes a first electrode film additive, which is 3-(4-cyano-5-(4-nitrophenyl)-1H-1,2,3-triazol-1-yl)propyl 4-methylbenzenesulfonate.
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Kim, Ko Eun
Nam, Hui Beom
Ban, Sung Ho
Lee, Yoon Sung
Oh, Seung Min
Rhee, Jun Ki
Kim, Dong Uk
Lee, Seung Min
Kim, Hyeong Jun
Hong, Sung You
Jeong, Seo Young
Kwak, Sang Kyu
Abstract
The present disclosure relates to an electrolyte solution for a lithium secondary battery capable of improving the output and lifespan characteristics at high temperature of a lithium secondary battery, and a lithium secondary battery including the same. An electrolyte solution for a lithium secondary battery includes a lithium salt, a solvent, and a functional additive, wherein the functional additive includes a positive-electrode film additive, which is 3-(4-cyano-5-(4-nitrophenyl)-1H-1,2,3-triazol-1-yl)propyl methanesulfonate.
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Kwon, Eun Ji
Seo, Samuel
Oh, Gwang Seok
Kang, Seok Ju
Baek, Kyung Eun
Abstract
Disclosed are an electrolyte membrane for a lithium-air battery, a method of manufacturing the same, a cathode for a lithium-air battery, a method of manufacturing the same, and a lithium-air battery including the electrolyte membrane and the cathode. Particularly, the lithium-air battery includes i) an electrolyte membrane, which is manufactured using an inorganic melt admixture including two or more nitrogen-oxide compounds and thus may have a very low eutectic point, and ii) a cathode, which is manufactured by reducing a metal at a fast speed on a carbon material. As such, the lithium-air battery is capable of stably operating even at low temperatures and providing high power output.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Park, Jong-Nam
Kim, Kang-Yong
Jang, Chang-Hee
Abstract
538-xx538-xxx nanocrystals according to the producing method of the present invention provide the diversification of materials by covering from the induction of anisotropic growth to the energy control of self-trapped states through the precise control of synthesis parameters.
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Yoon, Seo Hyun
Chae, Han Gi
Jeon, Chang Beom
Ju, Hye Jin
Abstract
Proposed is a method of manufacturing a carbon precursor fiber for a gas diffusion layer having excellent tensile properties (e.g., strength and modulus) by controlling the cross-sectional shape of carbon fiber. The method includes preparing a polyacrylonitrile-based copolymer, preparing spinning products by spinning a spinning solution containing the polyacrylonitrile-based copolymer in a coagulation bath, and obtaining a carbon precursor fiber by drawing the spinning products through heat treatment. The coagulation bath includes an amount of about 60% to 90% by volume of methanol and an amount of about 10% to 40% by volume of dimethylformamide based on the total volume of the coagulation bath.
D01F 9/24 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK (USA)
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (USA)
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Chan, Emory
Abstract
A photo-switchable nanocrystal can be provided which can include solely one or more inorganic elements. Further, a method for synthesizing photo-switchable nanocrystal can be provided which can utilize solely inorganic elements. For example, the fully inorganic element(s) can comprise lanthanide ion (Ln3+)-based phosphors. Further, the nanocrystal can be photostable and/or does not photodegrade with light excitation cycles.
C01F 17/36 - Compounds containing rare earth metals and at least one element other than a rare earth metal, oxygen or hydrogen, e.g. La4S3Br6 halogen being the only anion, e.g. NaYF4
G02F 1/00 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics
23.
FLEXIBLE SOLID ELECTROLYTE MEMBRANE FOR ALL-SOLID-STATE BATTERY, ALL-SOLID-STATE BATTERY COMPRISING THE SAME, AND MANUFACTURING METHOD THEREOF
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Seok, Hoon
Cheon, Yeong Jun
Min, Hong Seok
Lee, Sang Young
Oh, Kyeong Seok
Lee, Yong Hyeok
Abstract
A flexible self-supporting solid electrolyte membrane, an all-solid-state battery including the membrane, and a manufacturing method thereof are disclosed. The solid electrolyte membrane may include: a substrate including pores therein; and a solid electrolyte layer disposed on at least one surface of the substrate and including a solid electrolyte and a cured compound. At least a portion of the solid electrolyte layer may penetrate into the pores of the substrate to form a conduction path of lithium ions in a thickness direction of the substrate.
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Seo, Guiwon
Ko, Minjeong
Kwak, Youngshin
Kim, Jonghwan
Moon, Youngsu
Abstract
An electronic device is disclosed. The electronic device comprises: a display; a memory in which first spectrum information about the display and information about a plurality of color matching functions (CMFs) are stored; and at least one processor connected to the memory so as to control the electronic device, wherein the at least one processor acquires second spectrum information about an outer display device displaying a test image, acquires image spectrum information about the test image on the basis of the acquired second spectrum information, acquires a test image for each of the plurality of CMFs corresponding to the test image on the basis of the acquired image spectrum information, the first spectrum information, and information about the plurality of CMFs, and can control the display so that the test image is displayed for each of the plurality of CMFs.
H04N 17/02 - Diagnosis, testing or measuring for television systems or their details for colour television signals
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
25.
ORGANIC LIGHT-EMITTING COMPOSITE AND METHOD FOR PATTERNING ORGANIC LIGHT-EMITTING THIN FILM COMPRISING SAME, ORGANIC LIGHT-EMITTING COMPOSITION COMPRISING SAME, AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY (Republic of Korea)
EWHA UNIVERSITY INDUSTRY COLLABORATION FOUNDATION (Republic of Korea)
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Do Hwan
You, Young Min
Kim, Bong Soo
Kweon, Hyuk Min
Park, Sang Jun
Jeong, Uk Jin
Choi, Seok Ran
Ha, Bo Ri Na
Chun, Yu Sung
Song, Da Yoon
Shahid, Ameen
Heo, Yu Chan
Abstract
An organic light-emitting composite and a high-resolution patterning method for an organic light-emitting thin film including same, an organic light-emitting composition comprising same, and an organic light-emitting device comprising same are disclosed. The present invention comprises: a curing phosphorescent host; a curing phosphorescent dopant; and an organic silica precursor forming a silicone (-Si-O-Si-) network structure with the curing phosphorescent host and the curing phosphorescent dopant, wherein the curing phosphorescent host and the curing phosphorescent dopant comprise a crosslinking functional group.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Han, Da-Kyung
Lee, Sang-Young
Seo, Ji-Young
Lee, Yong-Hyeok
Lee, Je-An
Jeong, So-Mi
Abstract
A separator including a porous polymer substrate having a first surface and a second surface opposite the first surface; a porous coating layer on at least one surface of the porous polymer substrate; and a conductive coating layer on a surface of the porous coating layer opposite the surface of the porous coating layer facing the first surface of the porous polymer substrate. The porous coating layer includes a plurality of inorganic particles and a first binder polymer totally or partially on the surfaces of the inorganic particles to interconnect and fix the inorganic particles. The conductive coating layer includes single-walled carbon nanotubes (SWCNTs) and a second binder polymer.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
MICO LTD (Republic of Korea)
Inventor
Kim, Gun Tae
Seong, A Rim
Jo, Hyo I
Abstract
Disclosed is solid electrolyte containing gallium and tellurium-doped lithium lanthanum zirconium oxide (LLZO), a method for preparing the same, and an all-solid-state battery including the same. The all-solid-state battery including the solid electrolyte containing gallium and tellurium-doped lithium lanthanum zirconium oxide (LLZO) exhibits excellent electrochemical performance.
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Kim, Gun-Ho
Cho, Jae Bum
Ro, Kyong Kwan
Park, Boo Seong
Lee, Chul Ho
Abstract
Proposed is a filter fixing module mounted to a handpiece cooling device having a connecting unit such that a refrigerant supply unit is coupled thereto, the filter fixing module including a body having a support surface formed in a plate shape, and a receiving surface formed on an edge of the support surface and protruding in a first direction relative to the support surface so as to prevent removal of a filter received in the support surface, and a grip unit connected to the body, wherein the grip unit comprises a first grip member and a second grip member extending in directions opposite to the protruding direction of the receiving surface relative to the body.
A61F 7/00 - Heating or cooling appliances for medical or therapeutic treatment of the human body
A61B 18/02 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
29.
COMPOSITION, KIT AND METHOD FOR SURFACE TREATMENT OF POLYMER MATERIAL
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Shin, Hyun Seo
Cho, Joo Yong
Kim, Su Jin
Yang, Bo Na
Kang, Geun Hee
Ryu, Ja Hyoung
Kim, Do Hyun
Park, Ga Eun
Yang, Gyeong Seok
Choi, Eun Seong
Abstract
The present invention relates to a composition for the surface treatment of a polymer material and, more specifically, to a composition which, by comprising glycidol-derived repeating units, and a hyperbranched polyglycerol containing an unsubstituted or substituted acrylate group at at least one end thereof, has the effect of suppressing fibrosis, thrombus formation, or inflammatory cell adsorption by preventing proteins from being adsorbed to the surface of a polymer material that is surface-treated with the composition or an in-vivo implantation material including a polymer material.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Ji-Eun
Lee, Sang-Young
Jeong, So-Mi
Seo, Ji-Young
Lee, Yong-Hyeok
Lee, Je-An
Abstract
A separator for an electrochemical device provided with a porous coating layer including multiple types of binder resins, and a method for manufacturing the same. The separator has high adhesion between an electrode and the separator, even when any separate adhesive layer is not disposed on the surface of the separator. In addition, the separator has higher adhesion to an electrode, as compared to a separator using a fluorinated binder resin, such as polyvinylidene fluoride, used conventionally in the art. In addition, since the separator has no separate adhesive layer, it is possible to provide low interfacial resistance between the separator and an electrode. Further, the separator has high affinity to an electrolyte, as compared to a semi-crystalline polymer, such as a fluorinated binder resin, and thus improves the output characteristics of a battery.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Ji-Eun
Sung, Dong-Wook
Lee, Sang-Young
Seo, Ji-Young
Lee, Yong-Hyeok
Lee, Je-An
Abstract
A separator for an electrochemical device provided with a porous coating layer including multiple types of binder resins, and a method for manufacturing the same. The separator shows high adhesion between an electrode and the separator, even when any separate adhesive layer is not disposed on the surface of the separator. In addition, the separator shows higher adhesion to an electrode, as compared to a separator using a fluorinated binder resin, such as polyvinylidene fluoride, used conventionally in the art. Therefore, when introducing the separator to a battery, it is possible to manufacture an electrode assembly under a mild temperature and pressure condition, to improve the productivity of assemblage, to reduce defect generation, and thus to increase the yield. Further, the separator shows high affinity to an electrolyte, as compared to a semi-crystalline polymer, such as a fluorinated binder resin, and thus improves the output characteristics of a battery.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Lee, Zonghoon
Lee, Suk Woo
Yoon, Jong Chan
Shin, Hyung-Joon
Kim, Yohan
Abstract
The present invention relates to a composite structure which makes it possible to realize an ultra-fine semiconductor device. In particular, the composite structure according to the present invention comprises: a laminate in which two-dimensional materials having an anisotropic atomic structure are laminated; and at least one conductive channel resulting from positioning transition metal atoms with periodicity in the thickness direction from one surface of the laminate.
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Byun, Soon Chul
Kim, Sang Mo
Choi, Yong Seok
Lim, Jae Min
Seok, Hoon
Lee, Sang Young
Lee, Yong Hyeok
Jeong, Yi Su
Abstract
Disclosed are a hybrid solid electrolyte sheet and a method of manufacturing the same. The hybrid solid electrolyte sheet includes a hybrid solid electrolyte layer including a gel polymer electrolyte, thereby securing flexibility and alleviating brittleness. In addition, the hybrid solid electrolyte sheet includes a porous polymer film having a plurality of pores, thus minimizing the content of the acrylate monomer in the pores thereof and providing advantages of maintaining the continuity of the solid electrolyte while minimizing a decrease in ionic conductivity.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Gun-Ho
Abstract
Proposed is a laser treatment device having a cooling system, the device including a laser module which irradiates a patient's skin with a laser, a sensing unit which detects a temperature of a surface of the patient's skin before, during, or after the skin is heated by the laser, a cooling module which includes an inlet which receives a refrigerant from a refrigerant storage unit, a nozzle which sprays the refrigerant on the skin, a conduit which connects the inlet with the nozzle, an flow rate control unit which controls a spray amount of the refrigerant by using a valve which is positioned on the conduit and connects or disconnects the inlet with or from the nozzle, and a refrigerant condition control unit which applies a thermal energy to the refrigerant by using a thermoelectric element located between the flow rate control unit and the nozzle.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Noh, Sam Hyuk
Lee, Eun Jae
Park, Hyun Seung
Kim, Jae Ho
Abstract
The present invention relates to a method for data classification by lifespan according to a data transfer frequency for improving the performance and lifespan of a flash memory-based solid-state drive (SSD). More specifically, the present invention relates to a method for data classification by lifespan according to a data transfer frequency for improving the performance and lifespan of a flash memory-based SSD, the method comprising: a transfer frequency tracking step of, by software installed in a computer system, tracking a transfer frequency that each of multiple pages, in which data has been created, is transferred from a random block to another block by garbage collections (GCs) from an initial creation time point to an invalidation time point at which the data is erased or overwritten in a flash memory-based SSD; and a classification group forming step of, by the software, forming a classification group in which one or more pages having the same transfer frequency from among the multiple pages are grouped into one or more blocks.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Jang, Ji-Hyun
Yoon, Jong Chul
Abstract
The present invention efficiently provides reduced graphene oxide which, by reducing graphene oxide in an environment lacking hydrogen by applying a specific pressure and temperature in the presence of a catalyst, to have a specific average crystalline size and oxygen content, has low resistance, high electrical conductivity, and excellent quality. In addition, in a method according to an embodiment of the present invention, reduction is carried out in an environment lacking hydrogen and under low-temperature conditions, and carbon loss during the reduction process can be minimized.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Lee, Ji Yong
Song, Jong Chan
Choi, Nam Soon
Kang, Da Young
Han, Seung Hee
Kim, Sae Hun
Lee, Min Young
Abstract
An electrolyte composition for a lithium secondary battery includes a lithium salt comprising a nitrogen element, a first additive having a LUMO (lowest occupied molecular orbital) value lower than a LUMO value of the lithium salt, and a second additive having a LUMO value higher than the LUMO value of the lithium salt.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Gun-Ho
Cho, Jae Bum
Ro, Kyong Kwan
Park, Boo Seong
Lee, Chui Ho
Abstract
Proposed is a filter fixing module mounted to a handpiece cooling device having a connecting unit such that a refrigerant supply unit is coupled thereto, the filter fixing module including a body having a support surface formed in a plate shape, and a receiving surface formed on an edge of the support surface and protruding in a first direction relative to the support surface so as to prevent removal of a filter received in the support surface, and a grip unit connected to the body, wherein the grip unit comprises a first grip member and a second grip member extending in directions opposite to the protruding direction of the receiving surface relative to the body.
A61F 7/00 - Heating or cooling appliances for medical or therapeutic treatment of the human body
A61B 18/02 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
A61B 18/00 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
39.
NANOVESICLE REACTOR AND MANUFACTURING METHOD THEREFOR
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Cho, Yoon-Kyoung
Sumit, Kumar
Abstract
The present invention relates to a nanovesicle reactor and a manufacturing method therefor, and specifically provides a composition for manufacturing a nanovesicle reactor and a manufacturing method therefor, wherein the composition comprises a first vesicle including a first receptor on the surface thereof and a second vesicle including a second receptor on the surface thereof and the first receptor and the second receptor are coupled to each other via a ligand system so that the first vesicle is fused to the second vesicle to form a nanovesicle reactor, whereby the nanovesicle reactor can be used for cell energy production, drug delivery systems, and diagnostic systems through cellular enzymatic reactions.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Cho, Yoon-Kyoung
Jonathan, Sabate Del Rio
Abstract
The present invention relates to a metal membrane that has nanoporosity and is nanostructured and uses thereof. The metal membrane that has nanoporosity and is nanostructured, is nanostructured in a form including stems in which metal nanograins are irregularly aggregated and extend in the thickness direction of the membrane, and has nanoporosity due to voids between the stems. The metal membrane according to the present invention has nanoporosity while being nanostructured, and thus, can be prevented from being contaminated (biofouling) by biological materials such as proteins while having a remarkably improved surface area.
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Song, Jong Chan
Kim, Won Keun
Shin, Jae Wook
Shin, Sung Hee
Ryu, Kyoung Han
Ha, Seong Min
Kang, Seok Ju
Baek, Kyung Eun
Abstract
A method of manufacturing a composite anode for a lithium ion battery and a composite anode for a lithium ion battery manufactured thereby. According to the method provide herein, since a metal catalyst precursor is reduced using Joule heating to obtain a carbon-metal catalyst composite layer, composite anode for a lithium ion battery having a large area in a short period of time can be provided, which is excellent in terms of economic feasibility. Further, since it is possible to manufacture a composite anode for a lithium ion battery with the improved lithium electrodeposition density and reversibility of lithium ions, a composite anode for a lithium ion battery having high capacity and improved life stability can be obtained.
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Lee, Sehwan
Sim, Hyeon Uk
Lee, Jongeun
Abstract
A processor-implemented neural network operation method includes: receiving a first activation gradient and a first threshold corresponding to a layer included in a neural network; sparsifying the first activation gradient based on the first threshold; determining a second activation gradient by performing a neural network operation based on the sparsified first activation gradient; determining a second threshold by updating the first threshold based on the second activation gradient; and performing a neural network operation based on the second activation gradient and the second threshold.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Kyung Rok
Jang, E San
Ryu, Min Woo
Ahn, Sang Hyo
Abstract
An antenna device according to an example embodiment includes a silicon substrate of first type doping, at least two first doped regions formed by second type doping different from the first type doping, a second doped region formed by the second type doping outside a channel region surrounding the at least two first doped regions, and at least two gates disposed on a dielectric layer. In the antenna device, a resonant frequency is adjusted according to an external voltage individually applied to the at least two gates, and polarization information of a terahertz (THz) light source is obtained based on a pattern and an amount of an electric field measured at the at least two gates.
H01L 29/06 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions
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
44.
Method and apparatus for determining bottleneck link
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Lee, Kyunghan
Park, Shinik
Abstract
A method, performed by a receiver, for controlling congestion, including receiving packets from a transmitter, determining a maximum transmission rate of the received packets; determining a minimum packet delay of the received packets; determining characteristics of a congestion window of next packets to be received from the transmitter based on the maximum transmission rate and the minimum packet delay; and transmitting information on the determined characteristics of the congestion window to the transmitter.
A61B 18/02 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
46.
Electrolyte for lithium-metal battery having improved stability
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Lee, Ji Yong
Song, Jong Chan
Choi, Nam Soon
Lee, Won Joon
Kim, Sae Hun
Lee, Min Young
Ahn, Young Joon
Abstract
An electrolyte capable of lip roving the stability of a lithium-metal battery is provided. The electrolyte includes an organic solvent, a cosolvent, which is different from the organic solvent and includes a fluorine-based compound, and an additive having a lower lowest unoccupied molecular orbital (LUMO) value than the organic solvent.
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Noh, Sung Woo
Seong, Ju Yeong
Kim, Yong Gu
Song, In Woo
Min, Hong Seok
Yoon, Yong Sub
Kim, Yun Sung
Ha, A Reum
Jang, Yong Jun
Lee, Sang Heon
Ahn, Ki Hong
Cho, Jae Phil
Abstract
An embodiment anode active material for an all-solid-state battery includes a carbon-based material including carbon-based particles and a coating layer formed on a surface of the carbon-based particles, the coating layer comprising amorphous carbon, and a silicon-based material. An embodiment method of manufacturing an anode active material for an all-solid-state battery includes manufacturing a carbon-based material by forming a coating layer including amorphous carbon from a hydrocarbon gas on a surface of carbon-based particles through thermal chemical vapor deposition, manufacturing a silicon-based material through thermal chemical vapor deposition using a feed comprising silane gas and ammonia gas, and mixing the carbon-based material and the silicon-based material.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Bang, Eun Byul
Kim, Do Eon
Park, Yun Hee
Park, Jong Nam
Kim, Kang Yong
Choi, Yong Hoon
Abstract
A technology disclosed in the present disclosure provides a Group III-V-based quantum dot including a seed which includes a Group III element, a Group V element, and an active metal having various oxidation numbers and in which a molar ratio of the Group III element and the active metal is 1:3 to 1:30, and a method of manufacturing the same.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Bang, Eun Byul
Lee, Chang Min
Shin, Jong Moon
Lee, Hyung Dong
Park, Jong Nam
Choi, Yong Hoon
Kim, Kang Yong
Abstract
A manufacturing method for quantum dots according to the present invention comprises: a seed forming step of forming seeds containing a group III element and a group V element; an oxidation inhibiting step of inhibiting oxidation of the surface of the seeds by introduction of a surface oxidation inhibitor, after the seed forming step; and a growth layer forming step of forming, on the seeds, a growth layer containing a group III element and a group V element or a growth layer containing a group III element, an additional element, and a group V element, after the oxidation inhibiting step.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Bang, Eun Byul
Lee, Chang Min
Shin, Jong Moon
Lee, Hyung Dong
Park, Jong Nam
Choi, Yong Hoon
Kim, Kang Yong
Abstract
Disclosed in the present invention are groups III-V-based quantum dots and a method for producing same, the quantum dots according to the present invention being groups III-V-based quantum dots comprising: a seed containing group III elements and group V elements; and a metal layer wrapped around the outer surface of the seed, the metal layer being thinner than the radius of the seed and made of one or more metal elements selected from the group consisting of Al, Ti, Mg, Na, Li, F, Zr, Sn, and Cu.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Park, Kyoung Duck
Lee, Dong Yun
Raschke, Markus B.
Abstract
The present invention relates to a near-field scanning optical microscope system and a method for controlling same, and, more specifically, to a near-field scanning optical microscope system and a method for controlling same, the system comprising: a metal tip having an end positioned adjacent to a material to be analyzed; a light source part for emitting light; an optical probe allowing light emitted from the light source part to be irradiated between the metal tip and the material to be analyzed; a spectroscope for receiving a tip-enhanced signal generated through interaction between the light and the material to be analyzed, and generating a spectrum; a feedback providing part for providing, step by step, feedback so as to find the wave front of the light, over which the tip-enhanced signal for a reference value in the spectrum is maximally amplified; and a wave front control part for controlling the wave front of the light for each segment constituting an active region on the basis of the feedback.
ULSAN National Institute of Science and Technology (Republic of Korea)
Inventor
Ha, A Reum
Seong, Ju Yeong
Kim, Yong Gu
Song, In Woo
Min, Hong Seok
Yoon, Yong Sub
Kim, Yun Sung
Noh, Sung Woo
Jang, Yong Jun
Lee, Sang Heon
Cho, Jae Phil
Lee, Hyo Myoung
Abstract
A cathode active material for an all-solid-state battery includes: active material particles; and a coating layer covering at least a portion of the surface of the active material particles, wherein the coating layer includes lithium (Li), niobium (Nb), and at least one element selected from the group consisting of vanadium (V), zirconium (Zr) and combinations thereof.
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 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
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
53.
METHOD AND APPARATUS FOR EXTRACTING MOTION-RELATED NETWORK CHARACTERISTICS BETWEEN CRANIAL NERVE CELLS FOR DECODING MOTION INFORMATION
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Sung Phil
Kim, Minki
Abstract
According to an embodiment, a method for extracting motion-related network characteristics between cranial nerve cells for decoding motion information may comprise the steps of: using signals of a plurality of cranial nerve cells to extract activity information of the cranial nerve cells; calculating a functional connectivity matrix by measuring the amount of normalized mutual information for a plurality of brain signal cell pairs; extracting a significant network model by removing the cranial nerve cell pairs having less than a threshold amount of normalized mutual information; extracting quantitative network characteristics by extracting the characteristics of the cranial nerve cell pairs of the significant network model; and predicting the motion state of the cranial nerve cells by using the extracted network characteristics by using a machine learning classifier.
G16H 50/70 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for mining of medical data, e.g. analysing previous cases of other 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
G16H 20/30 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising
G16H 50/30 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for calculating health indicesICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for individual health risk assessment
G16H 70/00 - ICT specially adapted for the handling or processing of medical references
54.
Method of safely using controlled cooling systems and devices
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Kim, Gun-Ho
Cho, Jae Bum
Kim, Dae Hyun
Lee, Chul Ho
Abstract
Present disclosure provides a cooling device with safety features and methods for controlling temperature of the cooling device for safe cooling of target surface.
A61B 18/02 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
A61B 18/00 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
55.
Electrolyte membrane for lithium-air battery, method of manufacturing same and lithium-air battery comprising same
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Kwon, Eun Ji
Seo, Samuel
Oh, Gwang Seok
Kang, Seok Ju
Baek, Kyung Eun
Abstract
Disclosed are an electrolyte membrane for a lithium-air battery, a method of manufacturing the same, a cathode for a lithium-air battery, a method of manufacturing the same, and a lithium-air battery including the electrolyte membrane and the cathode. Particularly, the lithium-air battery includes i) an electrolyte membrane, which is manufactured using an inorganic melt admixture including two or more nitrogen-oxide compounds and thus may have a very low eutectic point, and ii) a cathode, which is manufactured by reducing a metal at a fast speed on a carbon material. As such, the lithium-air battery is capable of stably operating even at low temperatures and providing high power output.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Jae Joon
Park, Chansham
Lee, Kwangmuk
Choi, Subin
Abstract
A system for measuring bioimpedance, a bioimpedance measurement method, and a computer-readable recording medium for executing same in embodiments may comprise an electric current supply device for supplying an electric current to a human body, and a readout IC (ROIC) which in response to the supply of electric current, extracts an AC signal by attenuating a DC signal in a voltage generated from the human body, and amplifies and outputs the AC signal. The embodiments may implement an efficient system capable of improving energy efficiency while being able to simultaneously use two types of signals, AC impedance and DC impedance signals.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Sung, Eunjin
Nguyen, Thi Duyen
Kim, Jae-Kyoung
Park, Wonsang
Byun, Gangil
Lee, Seongryong
Heo, Jinmyeong
Abstract
An electronic device includes a display panel including a display area and a non-display area. The electronic device includes an input sensor disposed on the display panel and including a plurality of bridge elements and a plurality of sensing patterns connected to the plurality of bridge elements, and an antenna disposed on the same layer as the input sensor. The antenna includes a first sub-antenna disposed on a same layer as the bridge element and including a first portion extending in a first direction and a second portion extending from one end of the first portion in a second direction crossing the first direction and a second sub-antenna disposed on a same layer as the sensing pattern and including a third portion and a fourth portion extending from one end of the third portion in a direction opposite to the second direction.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Ji-Eun
Sung, Dong-Wook
Lee, Sang-Young
Seo, Ji-Young
Lee, Yong-Hyeok
Lee, Je-An
Abstract
The present invention relates to a separator, provided with a porous coating layer comprising multiple types of binder resins, for an electrochemical device, and a method for manufacturing same. The separator according to the present invention has a high adhesive force between an electrode and the separator even if a separate adhesive layer is not disposed on the surface of the separator. In addition, the separator is higher in electrode-separator adhesive force than a separator to which a conventionally used fluorine-based binder resin, such as polyvinylidene fluoride, etc., is applied. Therefore, the introduction of the separator into a battery allows the fabrication of an electrode assembly in mild conditions for temperatures and pressures and exhibits the effect of improving assembly productivity and reducing the defective rate to increase the yield. Furthermore, since the separator according to the present invention does not have a separate adhesive layer formed therein, the interfacial resistance between the separator and the electrode can be lowered, and the affinity for the electrolyte is high compared to semi-crystalline polymers such as a fluorine-based binder resin, etc. so that there is an effect of improving the output characteristics of the battery.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Ji-Eun
Lee, Sang-Young
Jeong, So-Mi
Seo, Ji-Young
Lee, Yong-Hyeok
Lee, Je-An
Abstract
The present invention relates to: a separator, which is for an electrochemical element and provided with a porous coating layer including several types of binder resins; and a method for manufacturing same. The adhesiveness between the separator according to the present application and an electrode is high even when a separate adhesive layer is not disposed on the surface of the separator. Also, the adhesiveness between the electrode and the separator is greater than that between the electrode and a typical separator to which a fluorine-based binder resin such as polyvinylidene fluoride is applied. Thus, using the separator in a battery has the effects of allowing an electrode assembly to be manufactured under mild temperature and pressure conditions and improving the assembly productivity thereof, and decreasing the rate of defects and thus increasing yield. Also, the present invention has the effects in which: the interface resistance between the separator and the electrode can be reduced because a separate adhesive layer is not formed on the separator; and output characteristics of the battery are improved due to the high affinity with electrolytes compared to semi-crystalline polymers such as fluorine-based binder resins.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Byun, Gangil
Lee, Seongryong
Kim, Jae-Kyoung
Nguyen, Thi Duyen
Heo, Jinmyeong
Abstract
A display device includes a display panel, a conductive layer disposed on the display panel and including a plurality of first patterns and a plurality of second patterns having a shape different from the first patterns, and an antenna element spaced from the conductive layer and operating in each of a first frequency band and a second frequency band. A first signal within the first frequency band constructively interferes with a first reflected signal corresponding to the first signal reflected at least partially by the first patterns, and a second signal within the second frequency band constructively interferes with a second reflected signal corresponding to the second signal reflected at least partially by the second patterns.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
DRONEDOM CO., LTD. (Republic of Korea)
Inventor
Jeong, Yunwoo
Seo, Sungbin
Abstract
The present invention relates to a patient transfer device. Particularly, according to one embodiment of the present invention, provided is a patient transfer device comprising: a support part including a patient loading surface capable of supporting a patient; a plurality of propeller parts which are connected to the support part and which move the support part; a power supply part which is transferred while being supported by a user, and which supplies power to the propeller parts; and a connecting member for connecting the power supply part and the support part, wherein the support part moves by following the power supply part.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Jae Joon
Choi, Subin
Park, Kyeong-Hwan
Abstract
In a multi-channel resistance-based gas sensor system, the multi-channel array includes gas sensor channels respectively connected to resistive type gas sensors. The pre-processing unit selects a current mode, a resistance mode, or an external resistance mode, analyzes a sensing value obtained from any one of the gas sensor channels based on the selected mode and outputs a voltage value corresponding thereto. The analog-to-digital converter (ADC) converts the voltage value to digital data. The control unit controls the pre-processing unit to execute one of the current mode for analyzing a sensing value smaller than or equal to a preset first resistance value, the external resistance mode for analyzing a sensing value greater than or equal to a preset second resistance value greater than the preset first resistance value and the resistance mode for analyzing a sensing value between the preset resistance first value and the preset second resistance value.
G01N 27/04 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
G01N 33/00 - Investigating or analysing materials by specific methods not covered by groups
63.
Induction heat cooking apparatus to implement WPT and PFC power converter
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kwack, Younghwan
Yang, Jaekyung
Son, Seongho
Lee, Yongsoo
Jung, Jeehoon
Park, Hwapyeong
Kim, Mina
Abstract
An induction heat cooking apparatus that includes: a rectifier that is configured to convert alternating current (AC) voltage supplied from an external power source into direct current (DC) voltage; an inverter that is configured to generate current based on DC voltage received from the rectifier and provide the current to output nodes; heating coils that are configured to, based on the current generated by the inverter, generate magnetic fields for providing heat; a first capacitive unit that includes one or more resonance capacitors and that is coupled between the output nodes; a second capacitive unit that includes one or more wireless power transfer (WPT) capacitors and that is configured to be coupled between the output nodes; and a mode conversion switch that is configured to couple the second capacitive unit to the first capacitive unit in parallel is disclosed.
H02M 3/06 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider
H02M 7/10 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode arranged for operation in series, e.g. for multiplication of voltage
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kwon, Oh Min
Min, Hong Seok
Yoon, Yong Sub
Kim, Kyung Su
Oh, Dae Yang
Jung, Yoon Seok
Nam, Young Jin
Jung, Sung Hoo
Abstract
An improved, low porosity, solid electrolyte membrane and a method of manufacturing the solid electrolyte membrane are provided. The low porosity, solid electrolyte membrane significantly improves both mechanical strength and porosity of the membrane, inhibits the growth of lithium dendrites (Li dendrites), and thereby maintains and maximizes electrochemical stability of an all-solid-state battery. This is accomplished by wet-coating a sulfide or oxide solid electrolyte particle with a thermoplastic resin, or a mixture of the thermoplastic resin and a thermosetting resin, using a solvent to prepare a composite and hot-pressing the composite at a relatively low temperature and at a low pressure.
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
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Lee, Ki-Suk
Jeong, Daehan
Han, Hee Sung
Kim, Namkyu
Kang, Myeonghwan
Abstract
A method for designing a magnetic plate allowing magnetic particles contained in magnetic ink distributed at different densities includes estimating a distribution of the magnetic particles allowing the magnetic ink to be spread, estimating forms of magnetic field applying the magnetic force to the magnetic particles in order for the magnetic ink to be spread in a desired magnetic printing pattern within the printing layer, obtaining adjustment factors of the magnetic plate corresponding to the estimated forms of the magnetic field by using a model for which deep learning or machine learning has been performed using design conditions including at least one of an upper surface structure of the magnetic plate and a magnetization property of the magnetic plate and obtaining a parameter for the magnetic plate configured to form the magnetic printing pattern based on the obtained adjustment factors.
G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model
H01F 41/24 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates from liquids
G06F 119/14 - Force analysis or force optimisation, e.g. static or dynamic forces
66.
Ⅲ-V TYPE QUANTUM DOT AND METHOD FOR MANUFACTURING SAME
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Bang, Eun Byul
Kim, Do Eon
Park, Yun Hee
Park, Jong Nam
Kim, Kang Yong
Choi, Yong Hoon
Abstract
A technology disclosed in the present invention may provide a Ⅲ-V type quantum dot comprising a seed and a method for manufacturing same, wherein the seed has a group Ⅲ element, a group Ⅴ element, and an active metal having various oxidation numbers and the molar ratio of the group Ⅲ element and the active metal is 1 : 3 to 1 : 30.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Bang, Eun Byul
Kim, Do Eon
Park, Yun Hee
Park, Jong Nam
Kim, Kang Yong
Choi, Yong Hoon
Abstract
A technology disclosed in the present invention provides an active nano cluster comprising an active metal oxide-carboxylate and a manufacturing method therefor.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Bang, Eun Byul
Kim, Do Eon
Park, Yun Hee
Park, Jong Nam
Kim, Kang Yong
Choi, Yong Hoon
Abstract
Technology disclosed in the present invention provides a groups-III-V-based quantum dots and a method for manufacturing same, the quantum dots having a band gap control layer comprising: a seed comprising a group III element and a group V element; and a growth layer formed on the outer surface of the seed and comprising a group III element and a group V element. The quantum dots comprise an active metal which can have various oxidation numbers in at least one of the seed or growth layer forming the band gap control layer.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Bang, Eun Byul
Kim, Do Eon
Park, Yun Hee
Park, Jong Nam
Kim, Kang Yong
Choi, Yong Hoon
Abstract
The present invention provides: III-V quantum dots comprising a group III element, a group V element and an active metal that can have various oxidation numbers, and having a seed doped with one or more additional elements selected from the group consisting of Al, Ga, Ti, Mg, Na, Li and Cu, wherein the quantum dots have an emission wavelength of 500-650 nm and a full width at half maximum of 50 nm or less; and a preparation method therefor.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION (Republic of Korea)
Inventor
Lee, Joohee
Cheon, Junghee
Kim, Duhyeong
Yun, Aaram
Abstract
n; choosing, by a processor, a randomly uniform matrix A which satisfies A·s=e (mod q); choosing, by a processor, a random column vector b which satisfies
d×(d+1).
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Lee, Ki-Suk
Kang, Myeonghwan
Jeong, Daehan
Han, Hee Sung
Lee, Sooseok
Kim, Namkyu
Ok, Hye-Jin
Abstract
A magnetic domain drawing apparatus includes a magnetic plate moving module including a magnetic plate seating part configured to hold a magnetic plate seated thereon and a magnetic plate moving part configured to move the magnetic plate seating part, and at least one of magnetic domain deforming modules disposed to be spaced apart from the magnetic plate seating part at a predetermined distance and configured to deform a magnetic domain of the magnetic plate when the magnetic plate is seated on the magnetic plate seating part. The at least one of magnetic domain deforming modules is configured to deform the magnetic domain of the magnetic plate by applying at least one of heat, a magnetic field and an external force to the magnetic plate.
B41J 2/43 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material for magnetic printing
B41J 2/40 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material using multi-stylus heads providing current or voltage to the multi-stylus head
72.
Image processing apparatus and data receiving apparatus, and methods thereof
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Lee, Kyunghan
Nam, Wooseung
Abstract
An image processing apparatus includes a storage unit, a selection unit, and an encoding unit. The storage unit stores pre-synchronized image data. The selection unit selects as a reference image at least one of the pre-synchronized image data based on a result of comparison between the pre-synchronized image data and an original image data. The encoding unit generates a compressed image data by compressing the original image data using the reference image. The selection unit calculates similarity between the original image data and at least one of the pre-synchronized image data and selects the reference image among the synchronized image data based on the calculated similarity.
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Kim, Jae Joon
Choi, Subin
Abstract
A resistance measuring device includes an amplifying unit including an amplifier, a first and a second current supply unit, a voltage detection unit, and a controller. The controller controls the voltage detection unit to detect a first output voltage of an output terminal of the amplifier in a state where the current of the first current source flows in a forward direction to a measurement target resistor by controlling the first current supply unit, controls the voltage detection unit to detect a second output voltage of the output terminal of the amplifier in a state where the current of the second current source flows in a reverse direction to the measurement target resistor by controlling the second current supply unit, and calculates a resistance value of the measurement target resistor based on the detected first output voltage and the detected second output voltage.
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Lee, Kyunghan
Park, Shinik
Abstract
A method, performed by a receiver, for controlling congestion, including receiving packets from a transmitter, determining a maximum transmission rate of the received packets; determining a minimum packet delay of the received packets; determining characteristics of a congestion window of next packets to be received from the transmitter based on the maximum transmission rate and the minimum packet delay; and transmitting information on the determined characteristics of the congestion window to the transmitter.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Lee, Kyunghan
Kim, Junseon
Abstract
A network switching device includes: a communication unit; an information collection unit configured to obtain information on a network state of the network from first and second information for packets received through the communication unit; a marking reference calculation unit configured to calculate a marking reference based on the second information when it is determined that the network state has changed based on the first information; and a marking execution unit configured to perform marking indicating a congestion degree on at least a part of the packets received through the communication unit based on the calculated marking reference.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Jae Joon
Kim, Seungmok
Park, Kyeong-Hwan
Abstract
A differential mode converter that includes an input mode converter configured to convert an input voltage in a single-ended mode into a first differential voltage and a second differential voltage to be output, the first differential voltage and the second differential voltage being symmetric with respect to a reference voltage and having a form of a square wave; and a chopper configured to receive the first differential voltage and the second differential voltage and determine a first chopping voltage and a second chopping voltage based on the first differential voltage and the second differential voltage to output the first chopping voltage and the second chopping voltage, the first chopping voltage and the second chopping voltage being symmetric with respect to the reference voltage and having a form of a DC voltage.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Park, Won Sang
Kim, Seong Mun
Kim, Yun Ho
Kim, Il Nam
Park, Kyeong Min
Bien, Franklin
Song, Joo Hyeb
Jung, Keum Dong
Choi, Eun Ho
Heo, Sang Hyun
Abstract
A touch panel includes a touch sensing circuit including a plurality of driving electrode lines and a plurality of sensing electrode lines, which intersect the driving electrode lines. The touch panel further includes a driving signal generation circuit that generates a plurality of driving signals and transmits the driving signals to the driving electrode lines, and a sensing circuit that receives a plurality of sensing signals from the sensing electrode lines. The driving signals have voltages that are not equal to zero during a first time zone, and the sum of driving signals generated at the same time is maintained to be equal to zero during the first time zone.
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Kim, Jae Joon
Park, Chansham
Abstract
There is provided a phase-domain detection apparatus for MIT application. The phase-domain detection apparatus includes a phase-locked loop unit configured to generate a plurality of reference clock signals having different phases and a phase-domain detection unit. The phase-domain detection unit is configured to receive the reference clock signals from the phase-locked loop unit, receive a response clock signal that is a phase-shifted reference clock signal of a reference clock signal inputted and passed through to a target object among the reference clock signals, and detect a phase difference between the reference clock signal inputted to the target object and the response clock signal.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Lee, Deokjung
Jeong, Eun
Choe, Jiwon
Choi, Soo Young
Park, Jinsu
Jang, Jaerim
Zhang, Peng
Abstract
In a pressurized water reactor operation method, a fuel assembly including first fuel rods that operates for a preset first operation time and second fuel rods that operates for a second operation time longer than the first operation time is prepared. An operation schedule of a pressurized water reactor is created by mixing the first operation time of the first fuel rods and the second operation time of the second fuel rods. The pressurized water reactor operates by repeating the operation schedule.
G21C 3/335 - Exchanging elements in irradiated bundles
G21C 19/19 - Reactor parts specifically adapted to facilitate handling, e.g. to facilitate charging or discharging of fuel elements
G21C 1/08 - Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being highly pressurised, e.g. boiling-water reactor, integral-superheat reactor, pressurised-water reactor
G21C 3/32 - Bundles of parallel pin-, rod-, or tube-shaped fuel elements
G21C 3/326 - Bundles of parallel pin-, rod-, or tube-shaped fuel elements comprising fuel elements of different compositionComprising, in addition to the fuel elements, other pin-, rod-, or tube-shaped elements, e.g. control rods, grid support rods, fertile rods, poison rods or dummy rods
G21C 5/18 - Moderator or core structureSelection of materials for use as moderator characterised by the provision of more than one active zone
G21C 1/32 - Integral reactors, i.e. reactors wherein parts functionally associated with the reactor but not essential to the reaction, e.g. heat exchangers, are disposed inside the enclosure with the core
80.
Wireless power transmission system and communication system
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Bien, Franklin Don
Oruganti, Sai Kiran
Heo, Sang Hyun
Park, Woo Jin
Seo, Seok Tae
Lee, Bon Young
Abstract
A wireless power transmission system and communication system is disclosed. A wireless power transmission system and communication system according to an embodiment of the present invention comprises: a transmission part which includes a first surface wave antenna, installed in a metal wall, for transmitting and receiving an electromagnetic surface wave flowing along a surface of the metal wall, and a first monopole antenna connected to the first surface wave antenna in parallel; and a reception part which includes at least one of a second monopole antenna and a second surface wave antenna, installed in a space partitioned by the metal wall, for receiving an electromagnetic surface wave flowing along the surface of the metal wall.
H01Q 13/26 - Surface waveguide constituted by a single conductor, e.g. strip conductor
H02J 50/50 - Circuit arrangements or systems for wireless supply or distribution of electric power using additional energy repeaters between transmitting devices and receiving devices
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
H01Q 9/30 - Resonant antennas with feed to end of elongated active element, e.g. unipole
H02J 50/23 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas
H02J 50/27 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of receiving antennas, e.g. rectennas
KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (Republic of Korea)
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
GANGNEUNG-WONJU NATIONAL UNIVERSITY INDUSTRY ACADEMY COOPERATION GROUP (Republic of Korea)
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Lee, Se Hee
Park, Jong Hoo
Kim, Se Hoon
Lee, Sang Youp
Lee, Jong-Chul
Lee, Jaeseon
Kim, Su Hun
Abstract
A power generation device is disclosed. The disclosed power generation device comprises: a first fluid containing magnetic particles; a second fluid having a specific gravity greater than that of the first fluid and generating bubbles when heat is applied; a receiving part for receiving the first fluid and the second fluid; and a stator disposed adjacent to the first fluid, wherein the stator generates an induced electromotive force caused by a density change of the first fluid when bubbles generated from the second fluid pass through the first fluid to change the density of the first fluid.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Uhm, In-Sung
Lee, Sang-Young
Kang, Sung-Joong
Kim, Jeong-A
Kim, Je-Young
Kim, Ju-Myung
Lee, Yong-Hee
Lee, Jae-Hyun
Abstract
Provided are a three-dimensionally structured electrode comprising: a porous non-woven fabric including a plurality of polymer fibers; an active material composite positioned between the plurality of polymer fibers and including an active material particle and a first conductive material; and a second conductive material arranged on the outer surface of the active material composite, wherein the plurality of polymer fibers form interconnected pore structures which are uniformly filled with the active material composite and the second conductive material to construct a three-dimensional filling structure, and an electrochemical device comprising the three-dimensionally structured electrode.
H01M 10/054 - Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
H01M 12/08 - Hybrid cellsManufacture thereof composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type
H01M 12/06 - Hybrid cellsManufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
H01G 11/26 - Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features
83.
Low porosity solid electrolyte membrane and method for manufacturing the same
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kwon, Oh Min
Min, Hong Seok
Yoon, Yong Sub
Kim, Kyung Su
Oh, Dae Yang
Jung, Yoon Seok
Nam, Young Jin
Jung, Sung Hoo
Abstract
An improved, low porosity, solid electrolyte membrane and a method of manufacturing the solid electrolyte membrane are provided. The low porosity, solid electrolyte membrane significantly improves both mechanical strength and porosity of the membrane, inhibits the growth of lithium dendrites (Li dendrites), and thereby maintains and maximizes electrochemical stability of an all-solid-state battery. This is accomplished by wet-coating a sulfide or oxide solid electrolyte particle with a thermoplastic resin, or a mixture of the thermoplastic resin and a thermosetting resin, using a solvent to prepare a composite and hot-pressing the composite at a relatively low temperature and at a low pressure.
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
F16H 57/025 - Support of gearboxes, e.g. torque arms, or attachment to other devices
F16H 57/028 - GearboxesMounting gearing therein characterised by means for reducing vibration or noise
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
84.
DIFFERENTIAL MODE CONVERTING DEVICE, AND MEASURING DEVICE USING DIFFERENTIAL MODE CONVERTING DEVICE
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Jae Joon
Kim, Seungmok
Park, Kyeong-Hwan
Abstract
The present invention relates to a differential mode converting device and a measuring device using the same, and can comprise: a target resistor for measuring a resistance value; an input mode converting unit, which receives, in a single-ended mode, an input voltage provided through the target resistor, so as to convert the same into a first differential voltage and a second differential voltage which have square wave forms symmetrical to each other with respect to a reference voltage and output the same; a chopper unit, which receives the first differential voltage and the second differential voltage so as to output a first chopping voltage and a second chopping voltage which have direct current forms symmetrical to each other with respect to the reference voltage; a low pass filter unit, which receives the first chopping voltage and the second chopping voltage so as to output a first output voltage and a second output voltage with a minimized noise and offset; and an analog-to-digital conversion unit, which performs analog-to-digital conversion on the first output voltage and the second output voltage so as to output a digital signal corresponding to the resistance value of the target resistor.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Park, Jongnam
Kim, Hyun-Hong
Kim, Hyeonjung
Kim, Kang Yong
An, Byeong Uk
Noh, Dong Kyun
Abstract
Disclosed are aerogel surface-modified with a catechol-based compound, and a preparation method therefor, the aerogel having a large surface area, high porosity, and low thermal conductivity, and being economical and eco-friendly.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Jae Joon
Choi, Subin
Park, Kyeong-Hwan
Abstract
A multichannel resistance-type gas sensor system comprises: a multichannel array having multiple gas sensor channels connected to multiple resistance-type gas sensors, respectively; a fist preprocessing portion for analyzing a sensing value acquired from one of the multiple gas sensor channels and outputting a first voltage value corresponding thereto, by using a mode selected from a current mode, a resistance mode, and an external resistance mode; a first ADC for converting the first voltage value into digital data; and a control portion for controlling the first preprocessing portion so as to perform one of the modes. In the current mode, a sensing value equal to or smaller than a preset first resistance value can be analyzed. In the external resistance mode, a sensing value equal to or larger than a preset second resistance value can be analyzed. In the resistance mode, a sensing value larger than the preset first resistance value and smaller than the preset second resistance value can be analyzed.
G01N 27/04 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
G01N 33/00 - Investigating or analysing materials by specific methods not covered by groups
87.
Method and apparatus for TCP-based transmission control in communication system
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Lee, Jin-Sung
Lee, Kyunghan
Park, Jung-Shin
Lim, Han-Na
Lee, Joo-Hyung
Lee, Hyung-Ho
Abstract
The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data rate beyond a 4G communication system such as LTE. In addition, the present disclosure relates to a TCP-based transmission control method and apparatus which can reduce a delay time while improving a transmission rate in a communication system. A method for TCP-based transmission control in a communication system according to an embodiment of the present disclosure comprises the steps of: determining a maximum target transmission rate for TCP control using maximum congestion windows (CWNDs) estimated at predetermined times; determining a minimum target round trip time (RTT) for the TCP control using minimum RTTs estimated at the predetermined times; and updating at least one of a congestion window (CWND) and a receive window (RWND) in an RTT time slot, using the maximum target transmission rate and the minimum target RTT.
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Kim, Hee Reyoung
Kwak, Jae Sik
Abstract
Provided is an induced electromagnetic pump using a rotating magnetic field. The induced electromagnetic pump includes a flow channel pipe through which a conducting fluid passes, a fluid inlet formed at an outer surface of the flow channel pipe in one direction and through which the conducting fluid flows into the flow channel pipe, a fluid outlet formed at the outer surface at which fluid inlet is formed in the same direction thereas and through which the conducting fluid is discharged from the flow channel pipe, and a plurality of electromagnetic coils arranged at certain intervals on one surface of the flow channel pipe and connected to U-phase power, V-phase power, and W-phase.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Jae Joon
Lee, Kwangmuk
Abstract
According to the present invention, in order to compensate for a biosignal when a biosignal such as a human heart rate is inputted through any measurement device, different amplification rates can be adjusted and applied on a real-time basis so as to correspond to the magnitudes of biosignals inputted from an amplification stage amplifying the biosignal, such that even when the magnitude of an inputted biosignal is not constant because of a problem of the biosignal measurement device, a biosignal having a magnitude of a constant level can be stably outputted.
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Kang, Sang Hoon
Kim, Sung Shin
Kang, Hyunah
Abstract
The present disclosure relates to an upper limb multi-joint impedance measurement method and an apparatus using the same. An upper limb multi-joint impedance measurement apparatus includes an upper limb end connector connected to an end of an upper limb of a subject, a driver configured to drive the upper limb end connector so that the upper limb end connector applies perturbations to the end of the upper limb of the subject, a measurement controller configured to provide the driver with a control signal for the perturbations, a force sensor configured to detect a magnitude of a perturbation force applied to the end of the upper limb of the subject by the upper limb end connector, a position sensor configured to detect a variation of a position of the upper limb end connector according to the applied perturbations, an impedance calculator configured to calculate a mechanical impedance of the upper limb of the subject by using force data and position data indicating the detected magnitude of the force and the detected variation of the position, and an impedance output unit configured to output an output signal indicating a value of the calculated mechanical impedance.
Ulsan National Institute of Science and Technology (Republic of Korea)
Inventor
Lee, Jin-Sung
Lee, Kyunghan
Park, Jung-Shin
Lim, Han-Na
Lee, Joo-Hyung
Abstract
The present disclosure relates to a 5G or a pre-5G communication system for supporting a higher data transmission rate than a 4G communication system such as LTE. A method for controlling TCP congestion in a communication system provided in the present disclosure comprises the steps of: determining the maximum transmission rate of a network, while increasing the size of a congestion window at a predetermined time interval; determining a threshold transmission rate which is determined by a preset ratio with regard to the determined maximum transmission rate; and adjusting the size of the congestion window such that the current transmission rate is not less than the threshold transmission rate and the delay time is no longer than the maximum allowable delay time.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Jae Joon
Abstract
A composite monitoring apparatus comprises: a biosensor for detecting a bio-signal of a driver on a vehicle; an air quality sensor for sensing the air quality of the interior of the vehicle; and a control unit for determining whether sensing data on the air quality sensed by the air quality sensor exceeds a reference air quality value when sensing data on the bio-signal detected by the biosensor exceeds a reference bio-signal value, and generating an air quality warning alarm when the sensing data on the air quality exceeds the reference air quality value.
B60K 28/02 - Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver
B60K 28/06 - Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to incapacity of driver
B60H 1/00 - Heating, cooling or ventilating devices
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kyung, Gyouhyung
Lee, Ja Eun
Kim, Mu Gyeom
Lee, Seung Bae
Choi, Byeong Hwa
Park, Sungryul
Lee, Songil
Yi, Jihhyeon
Choi, Donghee
Nam, Kyung Hyun
Abstract
A method for controlling a curvature of a display device as a control method of the curvature of the display device including a flexible display panel, a curvature change member, a controller, and a photo sensor includes: measuring an amount of a light incident to the flexible display panel by using a photo sensor; confirming a position of a part where the amount of the measured light is more than a predetermined reference value in the flexible display panel when the amount of the measured light is more than the reference value; and changing the curvature around the part where the amount of the measured light is more than the reference value in the flexible display panel by using the curvature change member.
G06F 1/16 - Constructional details or arrangements
G09F 9/30 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Oh, Jaeeun
Jeon, Dongho
Abstract
The present invention relates to a cement-free binder and an application thereof. More specifically, the present invention provides an eco-friendly cement-free binder comprising fly ash, calcium oxide, and calcium chloride in a particular formulation, wherein the cement-free binder can be used and applied as mortar and concrete having low cost, high strength, light weight, and heavy metal adsorption and sound absorption performances, and thus can have great economic effects.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Kim, Jae Joon
Abstract
According to the present invention, a sensor monitoring method based on a dual mode can comprise the steps of: performing a low-power mode in which at least one sensor operates among a plurality of sensors forming a multichannel sensor array for sensing a target material; performing a high-resolution mode in which the entire multichannel sensor array operates when the target material is sensed in the low-power mode; and acquiring high-resolution data for detecting the type and sensitivity of the target material through the performance of the high-resolution mode.
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Lah, Myoung Soo
Han, Seungwan
Abstract
The present invention relates to a method for simply and efficiently regenerating a metal-organic framework (MOF), which has porosity damaged by water or the like, through acid-base treatment, wherein the method comprises the steps of: treating a damaged metal-organic framework with an acid; and regenerating the acid-treated metal-organic framework through an amide treatment or a base treatment. According to the method, the damaged metal-organic framework can be used for regeneration by being simply dissolved in a strong acid; the pH of a solution can be adjusted by forming an internal base and adding an external base; and the regenerating yield is excellent.
B01J 20/30 - Processes for preparing, regenerating or reactivating
B01J 20/22 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising organic material
B01J 38/60 - Liquid treating or treating in liquid phase, e.g. dissolved or suspended using acids
B01J 38/66 - Liquid treating or treating in liquid phase, e.g. dissolved or suspended using alkaline materialLiquid treating or treating in liquid phase, e.g. dissolved or suspended using salts using ammonia or derivatives thereof
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Chang, Young-Tae
Xu, Wang
Zhai, Duanting
Cho, Yoon-Kyoung
Kim, Tae-Hyeong
Abstract
The present invention relates to Caffeine Orange, a novel aqueous-phase fluorescence turn-on sensor for caffeine that is structurally based on a BODIPY-scaffold. The present invention further provides for methods of detecting and measuring caffeine in aqueous media. A change in the intensity or visible color of the fluorescence is detectable by either a fluorimeter or by the naked eye. The methods disclosed herein provide for the utilization of a reverse-phase SPE column, optionally as a component in a syringe or a microfluidics-based automation detection system. The invention further provides for the solid phase extraction of an analyte such as caffeine from a liquid medium, the extraction occurring on a microfluidic disc.
B04B 1/08 - Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls of conical shape
C09K 11/00 - Luminescent, e.g. electroluminescent, chemiluminescent, materials
ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (Republic of Korea)
Inventor
Abi-Samra, Kameel
Madou, Marc
Kim, Tae Hyeong
Cho, Yoon-Kyoung
Abstract
A microfluidic device, a microfluidic system and a method for controlling a microfluidic test device are provided. The microfluidic device includes a rotatable platform including a sample chamber to which a sample is supplied, a first reagent chamber; a first capture conjugate disposed in the first reagent chamber and configured to capture a target material contained in the sample; a second reagent chamber; a signal material disposed in the second reagent chamber and configured to be electrochemically induced by the first capture conjugate; a reaction chamber providing an area in which a biochemical reaction between the sample and the signal material supplied occurs when the platform rotates; a second capture material disposed in the reaction chamber and configured to capture the target material; a detection chamber separated from the reaction chamber, the detection chamber comprising a detector configured to detect an electrochemical signal generated by the signal material; and a plurality of channels connecting the chambers.