• Title/Summary/Keyword: 피해확산

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환경오염등에 의한 농업피해 법률상식

  • Korea Duck Association
    • Monthly Duck's Village
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    • s.56
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    • pp.60-63
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    • 2008
  • 오늘날 인류가 누리는 문명은 자연에 대한 인류의 끊임없는 도전으로 이루어진 성과이지만 인류의 능력이 지나치게 거대화되어 자연의 평형상태를 깨뜨린 것이다. 또 산업 발달로 대량의 오염물질이 자연계에 확산됨으로써 자연계뿐아니라 인류 자신에게도 직접, 간접적인 피해를 주게 되었다. 근대화의 폐해로 생긴 다양한 환경오염과 생태파괴로 인해 위협받는 우리 삶을 반성적으로 성찰하고 지속 가능한 미래를 위해, 우리 먹을거리의 생산지이자 물질순환의 핵심고리인 농업의 피해를 개선해 나가고자 하는 것이다.

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Development of Damage Index Model and Cumulative Damage Days Model (실제피해엄중도 Model과 누적피해일 Model의 개발)

  • 여용석
    • Korean journal of applied entomology
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    • v.34 no.1
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    • pp.33-39
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    • 1995
  • 본문은 가지의 포전시험자료에 근거하여 점박이응애붙이(Tetranichus cinabaruinus(Boisduval))의 밀도와 피해엄중도간의 관계를 검토하였는데 그 결과 응애밀도와 피해엄중도간의 농약을 살포하기전 혹은 응애가 확산하기 전에는 정상관성(r=${0.865}^{\ast}{\ast}$)을 나타냈으나 통상적인 수량적 관계는 나타내지 않았다. 계통적조사에 근거하여 실제피해엄중도(DI) 증가율 model과 실측피해엄중도 model을 작성한 후 그 두 model로 실제피해엄중도 측정 model을 구성하였다. 피해정도를 잘 반영할 수 있는 누적피해일(cumulative damage days, CDD) 개념을 제출하고 그 수학적 model을 세웠다. 누적피해일은 실제피해엄중도곡선아래의 면적으로서 적분으로 표할 수 있는데 그속에 피해의 점차적이며 누적적인 기본 과정이 뒷받침 되어 있지 않다. 여러 가지 피해정도 표기법을 서로 서로 비교한 결과 CDD가 가장 합리적이었고 또한 동일한 생태조건(동지)하에서는 CDD와 DI가 일정한 등가성이 있었다.

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A evaluation study of a fire smoke diffusion delay device installed in a great depth underground double deck tunnel (대심도 복층터널에 설치 가능한 화재연기 확산지연장치 성능 평가 연구)

  • Shin, Tae-Gyun;Moon, Jung-Joo;Yang, Yong-Won;Lee, Yun-Taek
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.20 no.1
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    • pp.225-234
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    • 2018
  • Domestic urban areas are experiencing serious traffic congestion problems due to continuous population growth and increased traffic volume. In order to solve the problem of traffic congestion, the study of great depth underground double deck tunnels using underground space is being actively carried out in the urban areas. The characteristics of great depth underground double deck tunnels are low in cross section, so the spread of fire smoke is expected to spread faster than the road tunnel in case of fire. Therefore, it is necessary to provide a fire smoke delay device which delays the spread of fire smoke when a fire occurs in a tunnels. In the previous study, the diffusion effect was analyzed according to the blocking area when the fire smoke spread delay device was operated through the 3D CFD in the study of preventing the smoke spread in the case of the tunnel fire. A study on fire smoke diffusion delay device using spring elasticity which is excellent in applicability to a tunnel and economical value is studied. In this study, fire smoke spread delay system was developed to fire smoke delay was experimentally analyzed. Fire smoke delay effect of fire smoke delay device appeared. Therefore, it is considered that the can minimize the damage of the victims when installed in the great depth underground double deck tunnels.

실시간 피폭해석 시스템 검증을 위한 야외 확산실험

  • 한문희;김은한;서경석;황원태
    • Proceedings of the Korean Nuclear Society Conference
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    • 1996.05d
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    • pp.71-74
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    • 1996
  • 원자력시설의 비상사태시 대기중으로 방출된 방사성 물질로부터 주변 주민 및 환경이 받는 영향을 신속·정확하게 평가하고 그 피해를 최소화하기 위해 실시간 방사선 피폭해석 시스템을 개발하였다. 수립된 대기 확산모델의 검증 및 정확도 향상을 위하여 야외 확산실험이 수행되었다. 대기 확산모델의 계산결과와 실험을 통하여 관측된 추적자 가스의 농도 분포를 상호 비교한 바 어느 정도 일치하고 있었다. 그러나 일부 경우에서는 관측된 농도값과 계산된 농도값이 차이를 보이고 있는데, 이는 실험 대상 지역에서 충분한 기상 관측을 수행하지 못하여 시간에 따른 풍속의 변화를 확산모델에 자세히 반영하지 못하였기 때문이었다.

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Study on the economic losses in the industrial sector in case of a Mt. Baekdu eruption scenario (백두산 화산재해로 인한 산업부문 피해액 산정에 관한 연구)

  • Choi, Eun-Kyeong;Yu, Soonyoung;Kim, Sung-Wook;Yoon, Seong-Min
    • Journal of International Area Studies (JIAS)
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    • v.18 no.3
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    • pp.145-168
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    • 2014
  • Given the distance from Mt. Baekdu, volcanic ash will have the direct impact on South Korea in case Mt. Baekdu erupts. Ash fall deposits or particulate matters(PM10) in the air will cause damages in various sectors. In particular, the PM10 impact on the manufacturing sector when the ash disperses in Korea is needed to be assessed since South Korea's manufacturing sector accounts for more than 30% of GDP. Meanwhile the economic impacts of PM10, including Asian dust, have been researched in Korea as the events become frequent, and losses in the manufacturing have been also reported. This study is to identify vulnerable sectors to volcanic ash in the korean industry, and to assess economic losses in case of a Mt. Baekdu eruption scenario, based on the historical loss experience with particulate matters. Study results show that airline, precision such as electronics and semiconductors, distribution, shipbuilding, car, leisure, glass, dairy farming are vulnerable to volcanic ash, or PM10. The economic losses in both car and shipbuilding industry is estimated to 46.49 billion Korean won due to shutdown for 6 hours in case of a Mt. Baekdu eruption scenario.

Development of Crown Fire Propagation Probability Equation Using Logistic Regression Model (로지스틱 회귀모형을 이용한 수관화확산확률식의 개발)

  • Ryu, Gye-Sun;Lee, Byung-Doo;Won, Myoung-Soo;Kim, Kyong-Ha
    • Journal of the Korean Association of Geographic Information Studies
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    • v.17 no.1
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    • pp.1-12
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    • 2014
  • Crown fire, the main propagation type of large forest fire, has caused extreme damage with the fast spread rate and the high flame intensity. In this paper, we developed the probability equation to predict the crown fires using the spatial features of topography, fuel and weather in damaged area by crown fire. Eighteen variables were collected and then classified by burn severity utilizing geographic information system and remote sensing. Crown fire ratio and logistic regression model were used to select related variables and to estimate the weights for the classes of each variables. As a results, elevation, forest type, elevation relief ratio, folded aspect, plan curvature and solar insolation were related to the crown fire propagation. The crown fire propagation probability equation may can be applied to the priority setting of fuel treatment and suppression resources allocation for forest fire.