• Title/Summary/Keyword: 범아

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An Emergence of Tigers and Leopards in the Palace During the Joseon Period from the Environmental Historical Perspective (환경사 관점에서 본 조선시대 궁궐에 범과 표범의 출몰)

  • Hong, Hyoung-Soon
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.36 no.3
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    • pp.1-15
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    • 2018
  • This study aims to investigate an aspect of physical palace by reviewing the emergences of tigers and leopards in the palace in Hanyang from the environmental historical perspective. To do so, three topics in environmental history were reviewed including 'environment,' 'impact of human-beings on the environment,' and 'sense and attitude of human-beings on the environment' based on the historical records such as "'Wangjoshilok(王朝實錄)". The results of this study are as follows. First, It was confirmed that leopards and tigers were emerged not only in the palace but also near the City Wall of Hanyang from time to time in Joseon Dynasty. Moreover, tigers lived and propagated in the backyard. Second, This situation may be caused by the natural factors of palace in Hanyang including location, philosophy and technique of building, and so on. That means 'good location' placed by palace worked favorably not only for human-beings but also for the activities of tigers and leopards. Third, In addition to the locational environment, forest policies on the palace and capital may facilitate the emergences of leopards and tigers. With the managements of pine trees, prohibition of burials, prohibition of climbing, prohibition of mountain entrance, and so on, forests were developed in the mountainous territories, which might play a role of shelters or passages for the tigers and leopards. Fourth, It was confirmed that countermeasures on the emergences of tigers in the palace as well as the capital city were different by the kings. Out of these, Jeong-jo was highlighted to seek the realistic countermeasures with actual understanding on the emergences of tigers and leopards. Fifth, In summary, frequent emergences of tigers and leopards in the palace and capital city could be a practical evidence to show 'pro-naturalism' or 'eco-friendliness' of the palace in Joseon which was mentioned superficially, paradoxically speaking. Further studies with the related disciplines are required on the cultural or ecological history of the palace. In addition, it is considered to conduct more detailed scientific studies related to the trend of ecological changes in Joseon.

Some Statistical Issues to Compare the Two Proportions in a Sample Survey (동일조사에서 비율비교와 관련된 두 가지 흔한 오류)

  • 김현철
    • The Korean Journal of Applied Statistics
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    • v.16 no.1
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    • pp.169-179
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    • 2003
  • We suggest two types of misuses to analyze the same survey data. One is related with the fact that people nay use the wrong bounds of error when they compare two proportions. And the other is related with that some non-statisticians are apt to use wrong methods when there is a neutral answer in a question. We suggest these methods and compare them with the statistically good method. It will be a good results in educational purpose.

양돈업계사람들-원칙에 충실한 삶을 살아온 동물약품협회 서정범회장

  • Jo, Jin-Hyeon
    • The Korea Swine Journal
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    • v.21 no.4 s.236
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    • pp.152-154
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    • 1999
  • 시골버스와 화물 자전거에 몸을 싣고 한여름 무더위 속에서 무거운 약품가방을 한쪽 어깨에 맨 채 농장을 찾아다녔던 기억을 서정범 회장은 되살린다. 땀에 흠뻑젖은 셔츠에 넥타이를 매고 농장마다 찾아다니며 동물약품의 필요성에 대해 열변을 토하고 이해시키기 위해 뛰어다녔던 서 회장의 젊은 시절, 그 때가 있었기에 현재의 우리 축산업계와 동물약품업계가 있는 것인지도 모른다. 언젠가, 누군가는 했을 일이라고 서 회장은 겸손히 말하지만, 지금도 있는 많은 축산단지의 설립과 양돈단지로 자리잡은 이 당시 나환자촌 개발의 주역이 바로 서 회장이다. 아무것도 없었던 동물약품업계에 첫발을 내디딘 후 양축농가 계몽과 선도를 지상최대의 과제로 생각하고, 꾸준히 지금까지 동물약품업계를 이끌어 온 서정범 회장은 추간업계의 큰 조력자이자, 동물약품업계의 살아있는 역사이다.

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Development of an efficient 3-node plate bending element by using the Hellinger-Reissner functional (Hellinger-Reissner 범함수를 이용한 효율적인 3절점 판 유한요소의 개발)

  • Lee, Youn-Gyu;Choi, Chang-Koon;Lee, Phill-Seung
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2011.04a
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    • pp.760-763
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    • 2011
  • 본 논문의 목적은 효율적인 3절점 판 유한요소를 개발하는 것이다. Hellinger-Reissner 범함수에 근거한 혼합정식화(mixed formulation)를 사용한다. 잠김현상을 일으키는 전단변형률장을 독립적으로 분리한 후, MITC(Mixed Interpolation of Tensorial Components)방법을 이용하여 대체전단변형률장(assumed transverse shear strain field)을 구성한다. 추가적으로 회전된 반변기저벡터(contravariant base vector)로 정의된 근사전단변형률장(approximated transverse shear strain field)에 미지수(unknowns)를 도입하여 혼합정식화를 완성시키고 정적응축(static condensation)을 통해 최종 강성행렬을 구성한다. 거짓영에너지모드시험(spurious zero energy mode test), 조각시험(patch test), 등방성시험(isotropic test) 등을 실시하였으며, 4변 완전구속 정사각형 판 구조물과 60도 기울어진 단순지지 판 구조물 등 예제들을 해석하여 MITC3판 유한요소와 수렴성능을 비교하였다.

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