• Title/Summary/Keyword: 입수

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A Development Method for Water Entry Point Selection Algorithm by Detection Probability Analysis (탐지확률 분석에 의한 입수점 선정 알고리듬 개발 방안)

  • Cho, Sung-Bong
    • Journal of the Korea Institute of Military Science and Technology
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    • v.10 no.4
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    • pp.30-37
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    • 2007
  • In this paper, Water Entry Point Selection Algorithm(WEPSA) for selecting an optimal Water Entry Point of anti-submarine missiles which maximizes Detection Probability about a given target was investigated. WEPSA is a method which decides the position of an optimal Water Entry Point with calculating the target Detection Probability of a torpedo in the whole domain which centered by the target, performing the Monte-Carlo Simulations which include errors for the target informations and for weapon delivery. We can decide an optimal Water Entry Point of anti-submarine missiles which maximizes Detection Probability about a given target with WEPSA, if we get target informations about target range, target bearing, target speed and target course from Combat Systems.

A Process for Handling Prompt Overseas S&T information Service (신속성이 유지되는 해외 과학기술정보의 처리 프로세스)

  • 한선화;최성배
    • Proceedings of the Korea Contents Association Conference
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    • 2003.11a
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    • pp.321-327
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    • 2003
  • In the era of global competition, international competitiveness depends greatly on the prompt provision of overseas information. In the field of Science and Technology, it is very important to catch the research or technical trends of advanced countries in time. In this paper, we explain the process of collecting, evaluating, and distributing KISTI's overseas S&T trend information service. We also explain a quality management system which evaluates the quality of the information without loosing promptness.

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Design and Implementation of Optimal Bibliographic DB by SISAC Barcode (SISAC 바코드를 이용한 최적의 서지DB제작시스템 설계 및 구현)

  • Noh, Kyung-Ran;Kwon, Oh-Jin;Yae, Yong-Hee;Shin, Young-Ho
    • Annual Conference of KIPS
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    • 2002.11c
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    • pp.2293-2296
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    • 2002
  • 과거 서지DB 제작시스템은 자료의 수집부터 DB제작에 이르기까지 자료입수지연 및 서지데이터입력오류, 중복레코드생성, 권호정보의 부정확한 기입, 철자오류와 관련된 많은 문제들을 내포하고 있었다. 본 연구는 이와같은 문제들을 최소화하기 위해 SISAC기반 서지DB 제작시스템을 설계 구현하였다. 이 시스템은 기존 가용자원을 최대한 활용하기 위해 SISAC 바코드를 스캐닝하여 자료의 입수처리를 신속하게 하고, 서지데이터를 입력할 때 기존에 구축된 데이터를 공유함으로써 데이터 중복입력으로 인한 시간소모적인 작업을 줄인다. 그리고 개방형 환경에서 양질의 능력을 지닌 DB제작 전문가를 선정하는데 투명성을 제공하고, 이들 DB제작전문가를 활용함으로써 데이터의 품질향상에 기여한다.

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Numerical Analysis of Water Entry Behavior of the High Speed (고속으로 입수하는 물체의 입수 거동 해석)

  • Kim Y. W.;Park W. G.;Kim C. S.
    • 한국전산유체공학회:학술대회논문집
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    • 1998.11a
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    • pp.167-174
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    • 1998
  • The numerical methodology for simulating water entry behaviors of the high-speed bodies has been developed. Since the present method assumed the impact occurs within a very short time interval, the viscous effects do not have enough time to play a significant role in the impact forces, that is, the flow around a water-entry object was assumed as an incompressible potential flow and is solved by the source panel method. The elements fully submerged into the water are routinely teated, but the elements intersected by the effective planar free surface are redefined and reorganized to be amenable to the source panel method. To validate the present code, it has been applied to the ogive model and compared with experimental data. Good agreement has been obtained. The water entry behavior of the bouncing phenomena from the free surface has been also simulated using the impact forces and two degree of freedom dynamic equation. Physically, acceptable results have been obtained.

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Experimental Study of Water Impact Loads on Symmetric and Asymmetric Wedges (대칭 및 비대칭 2차원 쐐기의 입수 충격에 관한 실험적 연구)

  • Kim, Kyong-Hwan;Lee, Dong Yeop;Hong, Sa Young;Kim, Young-Shik;Kim, Byoung Wan
    • Journal of Ocean Engineering and Technology
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    • v.28 no.3
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    • pp.209-217
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    • 2014
  • In the present study, the water impact loads on two-dimensional symmetric and asymmetric wedges were mainly studied. The impact pressure and force were measured during a vertical drop of the symmetric and asymmetric wedges. The measured pressure was compared with analytic solutions. The measured force at a local area of the wedge was compared with the integrated pressures and analytic solutions. Some findings on symmetric and asymmetrical wedge drops are presented, and the reliability of the force sensor used for the measurement of the local impact force is discussed.

Design of a recommendation service for transfer locations in Jeju bus system. (제주 버스 환승지점 추천 서비스 설계)

  • Byun, Sejung;Kim, Jihwan;Kang, Minju;Lee, Junghoon
    • Annual Conference of KIPS
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    • 2020.11a
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    • pp.526-527
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    • 2020
  • 본 연구는 대중교통 활용도를 높이고자 효율적인 버스 환승지 추천 서비스를 설계한다. 제주데이터 허브에서 입수한 승하차데이터를 처리하여 승객수와 버스의 정류장 도착시간 등을 예측함은 물론 인터넷 연결을 통해 버스정보시스템과 연동하여 현재의 교통상황을 실시간으로 입수하여 효율적인 환승지를 추천한다. 승객은 변동되는 교통상황에 따라 이동중에도 더 좋은 환승 노선으로 변경할 수 있으며 데이터센터 관점에서는 축적되고 있는 버스 데이터의 활용도도 높일 수 있다.

A Study on the Waterscape Formation Techniques of China's Suzhou Classical Garden Based on the Water Inlet and Outlet (수구(水口)를 중심으로 분석한 중국 소주고전원림(蘇州古典園林)의 수경관 연출기법)

  • RHO Jaehyun;LYU Yuan
    • Korean Journal of Heritage: History & Science
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    • v.57 no.3
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    • pp.116-137
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    • 2024
  • This study quantitatively explored the interrelationship between water features and surrounding waterscape elements through a literature review and observational study targeting nine waterscapes of Suzhou Classical Garden in Jiangsu Province, China, which is designated as a UNESCO World Heritage Site. The purpose was to understand the objective characteristics of classical Chinese gardens and seek a basis for their differences from Korean gardens. The average area of water space in Suzhou gardens was 1,680.7㎡, which accounted for 21.3% of the total garden area, showing large variation by garden. Most of the Suzhou Gardens use springs and wells as their water sources. The Surging Waves Pavillion uses surface water, and Retreat & Reflection Garden uses seasonal water as its water source. The water pipes in Suzhou Garden are divided into a water outlet and a water outlet(water holes). Of these, the water outlet is a water outlet that imitates the water outlet just to induce a visual effect, and focuses on the meaning of the water system. It is judged to have been combined with the trend of Suzhou gardens. In addition, it was confirmed that, semantically, the arrangement of the water polo in Suzhou Garden is based on the traditional 'Gamyeo(堪輿) theory'. Meanwhile, there are five types of methods for bringing water to Suzhou Garden: Jiginbeop(直引法), Myeonggeobeop(明渠法), Invasionbeop(滲透法), Gwandobeop(管道法), and Chakjeongbeop(鑿井法). Suzhou Classical Garden mainly applies the infiltration method and the irrigation method as a method of securing water in the garden, which can be classified and defined as the water catchment method(集水法) and the water pulling method(引水法) in the domestic classification method. Among the watering techniques in Korean traditional gardens, watering methods such as 'suspension waterfall(懸瀑)', 'flying waterfall(飛瀑)' and water eluted(湧出), have not been found, and it is believed that they mainly 'rely on hide with dignity(姿逸)' and 'submerged current(潛流)' techniques. As for the watering technique, no watering technique was found that uses a Muneomi, which is applied in traditional Korean gardens. As this was applied, the seal method, penetration method, and Gwandobeop were also used in water extraction techniques. And at the inlet and outlet of Suzhou Garden, the main static water bodies were lakes, swamps, and dams. While the eastern water bodies are classified into streams, waterfalls, and springs, the water spaces in the three gardens reflect the centrifugal distributed arrangement, and the water spaces in the six places reflect the water landscape effect due to the centripetal concentrated arrangement. And as a water space landscape design technique, the techniques of 'Gyeok(隔)' and 'Pa(破)' were mainly applied at the inlet, and the techniques of 'Eom(隔)' and 'Pa(破)' were mainly applied at the outlet. For example, most bridges were built around the inlet, and sa(榭), heon(軒), gak(閣), pavilion(亭), and corridor(廊) were built, and the outlet was concealed with a stone wall. Therefore, it is understood to have embodied Suzhou Garden's idea of water(理水), which says, "Although it was created by humans, it is as if the sky is mine(雖由人作,宛自天開)."A trend was detected. Lastly, as a result of analyzing the degree of concealment and exposure in the visual composition of the inlet and outlet, it was confirmed that the water outlet was exposed only at the Eobijeong and Mountain Villa with Embracing Beauty view points of The Surging Waves Pavillion and the water outlet was hidden at other view points. Looking at these results, the 'Hyang-Hyang-Ba-Mi-Bob(向向發微法)' from the perspective of left-orientation theory of Feng Shui, which is applied in Korean traditional gardens in classical Chinese garden water management, "makes water visible as it comes in, but invisible as it goes out." It is judged that the technique was barely matched.

아 ㆍ태평양지역의 석유제품수출입 현황과 전망

  • Korea Petroleum Association
    • Korea Petroleum Association Journal
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    • no.6 s.64
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    • pp.7-39
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    • 1986
  • 이 자료는 최근 일본의 에너지경제연구소가 일본의 석유제품 수입자유화를 계기로 문헌조사 및 해외현지조사를 통해 작성한 연구조사보고서를 입수, 번역한 것이다. <편집자 주>

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BERLIN시의 상수도

  • Korea Water and Wastewater Works Association
    • 수도
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    • s.5
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    • pp.42-45
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    • 1975
  • IWSA회원인 본회 박형석감사의 제공으로 입수된 국제상수도협회지 AQUA 1975년 3호 에 게재된 Berlin의 상수도 전문을 번역 소개한다.

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