• Title/Summary/Keyword: 코너 부

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Integrity comparison for various design specifications of corner protections in LNG storage tank (LNG저장탱크 코너프로텍션의 설계사양에 따른 건전성 비교)

  • Kim Hyoungsik;Hong Seongho;Seo Heungseok
    • Journal of the Korean Institute of Gas
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    • v.6 no.4 s.18
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    • pp.33-39
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    • 2002
  • [ $9\%$ ] nickel steel LNG storage tank have double containments that can store cryogenic LNG independently. Inner tank material is used as $9\%$ nickel steel and outer tank is constructed by concrete. Comer protection which is installed on inner surface of concrete corner is consist of $9\%$ nickel steel liner and form glass insulator that make reduce tension at corner when LNG is leaked from inner tank. It is very difficult to design corner protection because expansion and contraction of liner make stress state complex. Corner protections of operating tank in KOGAS are designed by Japanese engineering company such as TKK, KHI and England company of WHESSOE. This paper is mainly focused on the integrity comparison of them according to requirements of Appendix 4 in ASME Section VIII Div. 2 by using FEM.

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Text Region Extraction from Videos using the Harris Corner Detector (해리스 코너 검출기를 이용한 비디오 자막 영역 추출)

  • Kim, Won-Jun;Kim, Chang-Ick
    • Journal of KIISE:Software and Applications
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    • v.34 no.7
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    • pp.646-654
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    • 2007
  • In recent years, the use of text inserted into TV contents has grown to provide viewers with better visual understanding. In this paper, video text is defined as superimposed text region located of the bottom of video. Video text extraction is the first step for video information retrieval and video indexing. Most of video text detection and extraction methods in the previous work are based on text color, contrast between text and background, edge, character filter, and so on. However, the video text extraction has big problems due to low resolution of video and complex background. To solve these problems, we propose a method to extract text from videos using the Harris corner detector. The proposed algorithm consists of four steps: corer map generation using the Harris corner detector, extraction of text candidates considering density of comers, text region determination using labeling, and post-processing. The proposed algorithm is language independent and can be applied to texts with various colors. Text region update between frames is also exploited to reduce the processing time. Experiments are performed on diverse videos to confirm the efficiency of the proposed method.

Processing Speed Improvement of Software for Automatic Corner Radius Analysis of Laminate Composite using CUDA (CUDA를 이용한 적층 복합재 구조물 코너 부의 자동 구조 해석 소프트웨어의 처리 속도 향상)

  • Hyeon, Ju-Ha;Kang, Moon-Hyae;Moon, Yong-Ho;Ha, Seok-Wun
    • Journal of Convergence for Information Technology
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    • v.9 no.7
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    • pp.33-40
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    • 2019
  • As aerospace industry has been activated recently, it is required to commercialize composite analysis software. Until now, commercial software has been mainly used for analyzing composites, but it has been difficult to use due to high price and limited functions. In order to solve this problem, automatic analysis software for both in-plane and corner radius strength, which are all made on-line and generalized, has recently been developed. However, these have the disadvantage that they can not be analyzed simultaneously with multiple failure criteria. In this paper, we propose a method to greatly improve the processing speed while simultaneously handling the analysis of multiple failure criteria using a parallel processing platform that only works with a GPU equipped with a CUDA core. We have obtained satisfactory results when the analysis speed is experimented on the vast structure data.

Development of Design Formulas for Pipe Loops Used in Ships Considering the Curvature of Corners (코너부 곡률을 고려한 선박용 파이프 루프 설계식 개발)

  • Park, Chi-Mo;Yang, Park-Dal-Chi
    • Journal of Ocean Engineering and Technology
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    • v.23 no.4
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    • pp.91-99
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    • 2009
  • Many longitudinally arranged pipes in ships are subject to considerable displacement loads caused by the hull girder bending of ships and/or thermal loads in some special pipes through which fluids with highly abnormal temperatures are conveyed. As these loads may cause failure in the pipes or their supporting structures, loops have been widely adopted as a measure to prevent such failure, with the idea that they can lower the stress level in a pipe by absorbing some portion of these loads. But since such loops have some negative effects, such as causing extra manufacturing cost and occupying extra space, the number and dimensions of the loops need to be minimized. This research developed design formulas for pipe loops, modeling them as a spring element, for which the axial stiffness is calculated based on the beam theory, incorporating the effects of the curvature of loop corners and the flexibility of the straight portion of the pipe. The accuracy of the proposed design formulas was verified by comparing two results respectively obtained by the proposed formulas and MSC/NASTRAN. The paper ends with a sample application of the proposed formulas showing their efficiency.

건강과 자연농업 제222호

  • Jeong, Jin-Yeong
    • THE HEALTH and ORGANIC FARMING
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    • no.222
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    • pp.1-12
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    • 2006
  • 병술년 새해엔 풍요와 행복이 충만하길/우리나라 고유의 기농산품을 개발하여 세계화에 진력하자/우리의 산야초/토양검정은 친환경적 토양관리의 첫단계/제4회 친환경 유기농박람회 개최/경주시협의회 정기총회 개최/화천군,친환경농업 활성화대책 포럼개최/천안염암대,자연순환형 유기농.축산업의 발전방향 위한 국제 심포지엄 개최/농림부.환경부공동 제2회 친환경농업대상 시상/무항생제 축산물의 생산기술과 전략/우리조상들이 연구한 물이야기/농림부,농업경영컨설팅 사업 대폭 개선/착각하고 있는 잘못된 웰빙/왜 홍콩으로 가야 했나?/식물을 깨워 저항성을 갖게 하자/엽채류 균핵병 방제/친환경 고품질 오이 다수확재배 하려면?/협회 무농약17호/우수농산물코너/1월중 협회 일정 안내/농산물 인증제도 대폭개선 소비자 혼란방지 위해 6종류에서 3종류로/해충의 습성을 이용한 퇴치/12월중 새식구 명단/협회소식/'줌마렐라'뜬다 유기농 먹고 요가 즐기고/친환경 농산물 생산매뉴얼 발간/모르고 먹은 음식,약을 독으로 만들 수 있어요/지표시비

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인터뷰 - 강원도회 김철호 회장

  • 대한기계설비건설협회
    • 월간 기계설비
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    • s.304
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    • pp.70-75
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    • 2015
  • 전국 시 도회는 지난 해 개최된 총회를 통해 제9대 시 도회장을 새롭게 구성하고 각 지역에서 설비건설업계 및 협회 발전을 위해 활발한 활동을 벌이고 있다. 이에 본지는 전국 시 도회장으로부터 사업계획을 듣는 코너를 연재하고 있다. 이번 호에는 김철호 강원도회 회장[한신이엔지건설(주) 대표]으로부터 강원도회의 사업추진 현황과 향후 사업계획을 들었다. 김철호 회장은 강원지역 건설경기 악화로 어려움에 처한 회원사의 경영환경 개선을 위해 국방부 신축사업 기계설비공사 분리발주 추진 및 강원지역 건설공사 예산삭감 저지 등 활발한 대외활동과 회원사 화합을 위해 폭넓은 유대활동을 펼치고 있다.

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People Inside - 에드워드 권(Edward Kwon, 이케이푸드 대표)

  • Jang, Seong-Yeong
    • KOREAN POULTRY JOURNAL
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    • v.45 no.3
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    • pp.88-90
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    • 2013
  • 세계 최고의 7성급 명품 호텔 두바이 버즈알아랍 수석총괄주방장으로 활약했던 한국인 요리사가 있다. 에드워드 권(본명 권영민) 셰프는 내로라하는 세계 유명 셰프들 가운데 요리실력 만큼은 최고로 인정받아 스타 셰프로 부상했다. 몇 년 전 해외활동을 접고 귀국해 각종 방송 개인 사업으로 바쁜 와중 (주)체리부로 전속모델로 활약하며 명품 닭고기를 홍보하는 그. 진공저온요리라고 일컫는 수비드(Sous Vide) 조리법을 사용하면서 기름기 없는 닭가슴살을 부드럽게 요리해 고객들이 입맛을 사로잡을 수 있다고 말한다. 월간양계 People Inside 코너를 통해 만난 그와의 인터뷰 내용을 정리했다.

The Effect of Load Variation on the Performance of an Injection Heat Pump with an Economizer (이코너마이저 적용 열펌프 시스템의 부하변화에 따른 성능 특성 연구)

  • Choi, Jong Min;Park, Yong-Jung;Kang, Shin-Hyung
    • Journal of the Korean Society for Geothermal and Hydrothermal Energy
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    • v.10 no.3
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    • pp.1-7
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    • 2014
  • Heat pumps have received a fair amount of attention all over the world for their high efficiency and low environmental impact. Employing heat pumps for residential heating and cooling produces only about 2038 kg-$CO_2$/year, an amount which is less than half that of conventional boiler systems. However, the use of single-stage heat pumps becomes uneconomical when they are operated at very low evaporating temperature or high condensing temperature. Two-stage heat pumps systems can be used successfully for low or high temperature applications. In this paper, the experimental study on the performance of two-stage heat pump with an economizer was executed in heating mode. When the secondary fluid inlet temperature to the indoor heat exchanger increased, the COP enhancement rate of two-stage heat pump with an economizer was increased. For all outdoor inlet temperature conditions, the performance of the heat pump with an economizer was higher than it without an economizer.

Study on the Design of Upper Deck Hatch Corner Insert Plates of Large Container Carriers (대형 컨테이너선 상갑판 해치코너부 보강판의 설계에 관한 연구)

  • Park, Sung-Gu;Lee, Joo-Sung
    • Journal of the Society of Naval Architects of Korea
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    • v.43 no.3 s.147
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    • pp.331-339
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    • 2006
  • The objective of this paper is to calculate the fatigue strength for upper deck hatch corner insert plate of large container carriers without wave load analysis and global finite element analysis at the initial design stage. Wave load analysis and global F.E. analysis for three container carriers have been performed by GL(Germanischer Lloyd) procedure to propose the equation for hatch corner stress range which is the important factor in fatigue strength calculation. Considering the restraining effect of bulkhead, three types of equation, that is, single tight bulkhead, double tight bulkhead and support bulkhead have been proposed. Using the proposed equations, a simplified fatigue analysis based on GL rules has been performed for two container carriers of which fatigue strength analysis was carried out by GL. From the comparison between fatigue strength result of using the proposed equations and that of GL, it has been found that proposed stress range equations are useful for scantling of upper deck hatch corner insert plates for over 8,000 TEU class container carriers.