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151.发明申请公开(公告)号：US20220147561A1
公开(公告)日：2022-05-12
申请号：US17326565
申请日：2021-05-21
Inventor： Myungjae JEON , Kichul KIM , Yongkyu KIM , Hongseok LEE , San KIM , Hyekwan YUN , Donggeun LEE
Abstract: A preconditioned conjugate gradient (PCG) solver, embedded in an electronic device to perform a simultaneous localization and mapping (SLAM) operation, includes an image database, a factor graph database, and a back-end processor, wherein the back-end processor is configured to receive an image from the image database to perform re-localization, receive, from the factor graph database, data for calculating six degrees of freedom (DoF)-related components, construct a matrix including the six degrees of freedom-related components based on the received data, and load and rearrange the matrix and a vector, to perform calculation on each block of each row of the matrix and the vector, then output first data, and shift second data to a location of the first data.
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公开(公告)号：US11302455B2
公开(公告)日：2022-04-12
申请号：US16348594
申请日：2017-10-19
Inventor： Yong Jun Choi
Abstract: A method for removing iodine by using Deinococcus radiodurans having a gold nanoparticle synthesis ability is disclosed. More particularly, a method for removing radioactive iodine by adsorbing radioactive iodine onto gold nanoparticles synthesized in cells of Deinococcus radiodurans is disclosed. A recombinant microorganism having an enhanced radioactive iodine removal ability according to the present invention may selectively remove radioactive iodine present in various types of solutions at a high efficiency of 99% or higher, and thus may be very effective in removing radioactive iodine generated in large-scale hospitals, industries, nuclear facility accidents, and the like.
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公开(公告)号：US20220026100A1
公开(公告)日：2022-01-27
申请号：US17299887
申请日：2019-12-18
Inventor： Byung Deok YU , Hyunsoo MIN , Junjin JEON , Jinwoo PARK
Abstract: An air control system and method using air in an upper zone of the atmosphere are disclosed. An air control system using air in an upper zone of the atmosphere includes: a floating body 11 provided to stay in the upper zone of the atmosphere; air transporting pipes 15a and 15b interlocked with the floating body 11 to transport air in the upper zone of the atmosphere; blowers 22a and 22b mounted below the air transporting pipe 15a and 15b; and an air transporting controller 18 controlling an operation of the blowers 22a and 22b. According to the embodiment of the present invention, it is possible to implement functions such as cooling, drying, and purifying of the surrounding air, removing mist, or generating clouds through the transport of dry and low-temperature clean air in the upper zone of the atmosphere with a simple structure. In addition, according to the embodiment of the present invention, it is possible to freely adjust a height of air control because there is no need to install a post tower to support an elevating device because it supports the floating body 11 on the ground without the post tower.
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公开(公告)号：US11156961B2
公开(公告)日：2021-10-26
申请号：US16361422
申请日：2019-03-22
Inventor： Hojung Kim , Kichul Kim , Yongkyu Kim , Hongseok Lee
Abstract: A method and apparatus for processing hologram image data capable of optimizing image quality of a hologram image are provided. The image processing method includes receiving input image data, reading a header included at a predetermined location in the input image data, and generating hologram data configured to display a hologram image by performing a Fourier calculation and pixel encoding on the input image data based on at least one parameter recorded in the header, wherein the at least one parameter recorded in the header includes at least one of depth information, scale information, and gamma information.
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公开(公告)号：US20210304907A1
公开(公告)日：2021-09-30
申请号：US17216676
申请日：2021-03-30
Inventor： Young Wook KIM , Jung Hye EOM , Yu Kwang SEO , Seung Jae LEE
IPC: G21C3/62 , C04B35/628 , C04B35/626 , C04B35/634 , C04B35/565 , C04B35/632 , C04B35/645 , C04B38/00 , G21C3/20 , G21C21/04
Abstract: The present invention relates to a method for preparing a fully ceramic capsulated nuclear fuel material containing three-layer-structured isotropic nuclear fuel particles coated with a ceramic having a composition which has a higher shrinkage than a matrix in order to prevent cracking of ceramic nuclear fuel, wherein the three-layer-structured nuclear fuel particles before coating is included in the range of between 5 and 40 fractions by volume based on after sintering. More specifically, the present invention provides a composition for preparing a fully ceramic capsulated nuclear fuel containing three-layer-structured isotropic particles coated with the substance which includes, as a main ingredient, a silicon carbine derived from a precursor of the silicon carbide wherein a condition of ΔLc>ΔLm at normal pressure sintering is created, where the sintering shrinkage of the coating layer of the three-layer-structured isotropic nuclear fuel particles is ΔLc and the sintering shrinkage of the silicon carbide matrix is ΔLm; material produced therefrom; and a method for manufacturing the material. The residual porosity of the fully ceramic capsulated nuclear fuel material is 4% or less.
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Patent Agency Ranking
156.发明申请公开(公告)号：US20210302658A1
公开(公告)日：2021-09-30
申请号：US17191357
申请日：2021-03-03
Inventor： Ju Han LEE , Tae Yoon KIM , Kunkyu KANG , Junha JUNG
Abstract: The present invention relates to an optical fiber device for removing cladding light, an apparatus and a method for etching the same. The optical fiber device comprises: a first optical fiber section through an Nth optical fiber section arranged in sequence along a light travelling direction; and a first tapered coupling section coupling a Kth optical fiber section and a (K+1)th optical fiber section, where the Kth optical fiber section is any one of the first optical fiber section through the Nth optical fiber section and the (K+1)th optical fiber section is any one of the first optical fiber section through the Nth optical fiber section adjacent to the Kth optical fiber section, wherein the Kth optical fiber section comprises: at least one first subsection and at least one second subsection alternately arranged along the light travelling direction, each of the at least one first subsection having a diameter D2K−1 and a length L2K−1; and each of the at least one second subsection having a diameter D2K and a length L2K; and a second tapered coupling section coupling the first subsection and the second subsection adjacent to the first subsection, wherein the diameter D2K−1 and the length L2K−1 of the first subsection and the diameter D2K and the length L2K of the second subsection of the Kth optical fiber section and a diameter D2K+1 and a length L2K+1 of the first subsection and a diameter D2K+2 and a length L2K+2 of the second subsection of the (K+1)th optical fiber section satisfy D2K−1>D2K, D2K+1>D2K+2, L2K−1>L2K+1, L2K>L2K+2 and D2K−1=D2K+1, and satisfy D2K>D2K+2 for odd K and D2K
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公开(公告)号：US11004570B2
公开(公告)日：2021-05-11
申请号：US15751164
申请日：2016-07-19
Inventor： Young Wook Kim , Jung Hye Eom , Yu Kwang Seo , Seung Jae Lee
IPC: G21C3/62 , C04B35/628 , C04B35/626 , C04B35/634 , C04B35/565 , C04B35/632 , C04B35/645 , C04B38/00 , G21C3/20 , G21C21/04
Abstract: The present invention relates to a method for preparing a fully ceramic capsulated nuclear fuel material containing three-layer-structured isotropic nuclear fuel particles coated with a ceramic having a composition which has a higher shrinkage than a matrix in order to prevent cracking of ceramic nuclear fuel, wherein the three-layer-structured nuclear fuel particles before coating is included in the range of between 5 and 40 fractions by volume based on after sintering. More specifically, the present invention provides a composition for preparing a fully ceramic capsulated nuclear fuel containing three-layer-structured isotropic particles coated with the substance which includes, as a main ingredient, a silicon carbine derived from a precursor of the silicon carbide wherein a condition of ΔLc>ΔLm at normal pressure sintering is created, where the sintering shrinkage of the coating layer of the three-layer-structured isotropic nuclear fuel particles is ΔLc and the sintering shrinkage of the silicon carbide matrix is ΔLm; material produced therefrom; and a method for manufacturing the material. The residual porosity of the fully ceramic capsulated nuclear fuel material is 4% or less.
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公开(公告)号：US10951337B2
公开(公告)日：2021-03-16
申请号：US16700352
申请日：2019-12-02
Inventor： Sung-Oh Hwang , Yong-Han Kim , Kyung-Mo Park , Sung-Ryeul Rhyu
Abstract: A method for receiving a multimedia service is provided. The method includes receiving service specific information for at least one multimedia service provided from different networks, selecting one service based on the service specific information, and receiving the selected service. The service specific information includes one of a first service map table including information about at least one service which is transmitted over a plurality of logical channels, and a second service map table including information about at least one service which is transmitted over a single logical channel. Each of the first and second service map tables includes asset-related information.
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公开(公告)号：US20210033726A1
公开(公告)日：2021-02-04
申请号：US16627127
申请日：2019-08-12
Inventor： Hyung-Sup JUNG , Won-Kyung BAEK , Sung-Ho CHAE
Abstract: The present disclosure relates to a method and apparatus for phase unwrapping of an SAR interferogram based on an SAR offset tracking surface displacement model, in which the apparatus according to the present disclosure includes a Synthetic Aperture Radar (SAR) image acquisition unit that acquires two SAR images of a same object acquired at different times, a single look complex (SLC) image production unit that produces two SLC images corresponding to each of the two SAR images, an interferogram production unit that generates an SAR interferogram using SAR interferometry for the two SLC images, a surface displacement model production unit that produces an offset tracking surface displacement model using SAR offset tracking method for the two SLC images, an unwrapped residual interferogram generation unit that generates a residual interferogram by subtracting the SAR interferogram and the offset tracking surface displacement model, and generates an unwrapped residual interferogram by unwrapping the generated residual interferogram, and an unwrapped interferogram generation unit that generates an unwrapped SAR interferogram by adding the unwrapped residual interferogram to the offset tracking surface displacement model.
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公开(公告)号：US10809663B2
公开(公告)日：2020-10-20
申请号：US15954144
申请日：2018-04-16
Inventor： Hojung Kim , Kichul Kim , Yongkyu Kim , Hongseok Lee
Abstract: An image processing system for processing image data includes an image processing apparatus configured to process the image data to generate a hologram image; and a first memory and a second memory that store the image data. The image processing apparatus performs a first process and a second process in parallel, wherein the first process includes reading first data from the first memory and writing the first data to the second memory, and the second process includes reading second data from the second memory and writing the second data to the first memory.
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