• 제목/요약/키워드: Assessement

검색결과 48건 처리시간 0.023초

Risk Assessement를 통한 土地利用安全化計劃 (Risk Assessement-Safety for Rand use Planning)

  • 노삼규
    • 한국안전학회지
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    • 제3권2호
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    • pp.17-23
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    • 1988
  • Planning controls for the hazardous situation from Petrochemical Complexes in residential areas requires on theoretical estimation of risks. Engineering criteria and standards should e interpreted as acceptable risks for the safety of industrial workers and the community arising from industrial accident. An approach to formulate a safety criteria as distance between the origin and object of hazards and their impact are discussed.

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강우빈도해석에서 Bootstrap을 이용한 확률분포의 매개변수 추정에 대한 불확실성 해석 (Uncertainty Analysis for Parameter Estimation of Probability Distribution in Rainfall Frequency Analysis Using Bootstrap)

  • 서영민;박기범
    • 한국환경과학회지
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    • 제20권3호
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    • pp.321-327
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    • 2011
  • Bootstrap methods is the computer-based resampling method that estimates the standard errors and confidence intervals of summary statistics using the plug-in principle for assessing the accuracy or uncertainty of statistical estimates, and the BCa method among the Bootstrap methods is known much superior to other Bootstrap methods in respect of the standards of statistical validation. Therefore this study suggests the method of the representation and treatment of uncertainty in flood risk assessment and water resources planning from the construction and application of rainfall frequency analysis model considersing the uncertainty based on the nonparametric BCa method among the Bootstrap methods for the assessement of the estimation of probability rainfall and the effect of uncertainty considering the uncertainty of the parameter estimation of probability in the rainfall frequency analysis that is the most fundamental in flood risk assessement and water resources planning.

현장계측사례를 통한 압밀특성 평가 (Assessement of Consolidation Characteristics by Field Instrumentation)

  • 송정락;백승훈;오다영
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 1992년도 가을학술발표회 논문집
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    • pp.121-130
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    • 1992
  • Assessement of comsolidation characteristics of soft soil is very important in the project of soft soil improvement. In the design step, the consolidation characteristics of soil is determined by the laboratory tests (typically oedometer test), generally. But there is big differences between the condition of laboratory test and the condition of field(in situ). the differences results in the considerable difference between the predicted and measured consolidation behavior. This article analyzed the consolidation data of the "SOFT SOIL IMPROVEMENT PROJECT of the 2nd Namdong Industrial Complex at Inchon". The project was improving the road way net work in the 2nd Namdong Industrial Complex by preloading and sand pile method. Field instrumentation was performed at 10 points which consist of pneumatic piezometers, magnetic probe extensometers, inclinometers and electronic dipmeter. The results showed that there is big difference in the laboratory predicted consolidation behavior and field consolidadion behavior. Also there was big difference in the settlement behavior and pore pressure behavior. This article investigated the above factors by comparing the settlement, pore pressure and strength at different conditions.onditions.

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음성DB 및 음성입출력 평가법 관련 국제협력활동 소개 및 제안 (International Cooperative efforts for speech DB and speech I/O assessement technology)

  • 이용주
    • 한국음향학회:학술대회논문집
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    • 한국음향학회 1998년도 제15회 음성통신 및 신호처리 워크샵(KSCSP 98 15권1호)
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    • pp.363-366
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    • 1998
  • 음성언어처리기술의 응용이 활발해져 감에 따라 각국에서는 이들 기술의 성능을 객관적으로 평가하기 위한 국제적인 협력활동이 활발하다. 본고에서는 이들 음성 DB 및 음성 입출력 평가법 관련 국제협력활동을 소개하고 국내에서도 이에 적극적으로 대응하기 위한 방안을 제안하고자 한다.

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KS 인증 심사기준에서 과학적 기법의 적용 및 개선 방안 (Implementation and Improvement Strategies of Scientific Techniques in the Assessement Criteria of KS Certification)

  • 최성운
    • 대한안전경영과학회:학술대회논문집
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    • 대한안전경영과학회 2010년도 춘계학술대회
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    • pp.181-188
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    • 2010
  • The research presents the implementation and improvement strategies of scientific methodologies and techniques in the audit criteria of KS certification. The paper discusses the establishment of management strategy and quality policy by the alignment of BSC or policy deployment, the effective handling methodologies of control plan based on SPC, and the traceability of calibration uncertainty and MSA, etc.

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누적영향평가를 위한 평가범위 산정에 대한 연구 - 생활환경분야를 중심으로 - (A Study on Range of Environmental Impact Assessment for Cumulative Effect Assessement - A Review on Living Environment Sector -)

  • 김영하;이온길;이영수
    • 환경영향평가
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    • 제17권5호
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    • pp.299-309
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    • 2008
  • Cumulative effects can be defined as impacts on environment which results from incremental impacts of a proposed project, which covers other past, present, and reasonably foreseeable future actions. The necessity of Cumulative Effect Assessment is that, when there are several projects near the project area, environmental effects of individual project can be larger or smaller than those of individual project without having projects nearby because of synergy, ascending and descending effects. This study was intended to help Environmental Impact Assessment practitioners identify spatial and temporal boundaries during the scoping stage. To do this, literature review of domestic and foreign legislations, guidelines, textbooks and papers related to Environmental Impact Assessment and Cumulative Effect Assessment was accomplished. This study suggests that continuous research be needed in order to identify spatial boundaries for other assessment fields and to develop methodologies for cumulative effect assessment.

열간 후방압출된 Ti-6Al-4V 튜브의 성형결함 해석 (Assessement of Forming Defects in Hot Backward Extruded Ti-6Al-4V Tube)

  • 염종택;심인규;나영상;박노광;홍성석;심인옥
    • 한국소성가공학회:학술대회논문집
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    • 한국소성가공학회 2003년도 춘계학술대회논문집
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    • pp.347-350
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    • 2003
  • The metal forming behavior and defect formation in Ti-6Al-4V tube during hot backward extrusion were investigated. To predict the forming-defects such as shear band, inner cracks or surface cracks, dynamic material model(DMM) including Ziegler's instability criterion and modified Cockcroft-Latham fracture criterion(C-L model) were used. These models were coupled to the internal variables generated from FE analysis. The chilling effect and friction indicated a great influence on the deformation mode of the tube and the formation of surface cracks. The simulation results for the backward extrusion were compared with the experimental observations.

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