• 전자공학회논문지C
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• 제36C권10호
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• pp.29-38
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• 1999

본 논문은 조합 논리회로에서의 시험 불가능한 결함(untestable faults)을 확인하는 새로운 알고리즘 RICP(Redundancy Identification using Critical-pair Paths)를 제시한다. 조합 논리회로에서의 시험 불가능 결합은 회로의 과잉(redundancy)에 의해서 발생한다. 회로의 과잉은 팬 아웃 스템(fanout stem)과 재결집 게이트(reconvergent gate)의 영역을 분석함으로서 찾을 수 있다. 시험 불가능한 결함들은 임계 경로의 확장된 개념인 임계-쌍 경로를 이용하여 스템 영역을 분석함으로써 확인되어진다. RICP 알고리즘이 FIRE(Fault Independent REdundancy identification) 알고리즘보다 효율적이라는 것을 보여준다. ISCAS85 벤치마크 테스트 회로에 대한 두 알고리즘의 실험 결과를 비교하였다

• Journal of Information Processing Systems
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• 제15권1호
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• pp.159-168
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• 2019

Accurate forest fires detection algorithms remain a challenging issue, because, some of the objects have the same features with fire, which may result in high false alarms rate. This paper presents a new video-based, image processing forest fires detection method, which consists of four stages. First, a background-subtraction algorithm is applied to detect moving regions. Secondly, candidate fire regions are determined using CIE $L{\ast}a{\ast}b{\ast}$ color space. Thirdly, special wavelet analysis is used to differentiate between actual fire and fire-like objects, because candidate regions may contain moving fire-like objects. Finally, support vector machine is used to classify the region of interest to either real fire or non-fire. The final experimental results verify that the proposed method effectively identifies the forest fires.

• 대한중풍순환신경학회지
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• 제9권1호
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• pp.8-13
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• 2008

Objectives : This study was to investigated the correlation between average temperature & precipitation and pattern identification of the patients with stroke. Methods : 115 stroke patients within 30days of onset were registered during the study period. Pattern identification of stroke was classified into Fire and heat, Turbid phlegm and others. We took the mean of average temperature according to pattern identification and analyzed pattern identification into two groups according to climatological normal of average temperature in Seoul. We also analyzed pattern identification into two groups according to existence of precipitation. Results : Heat and fire, and other type of pattern identification had high frequency when average temperature was higher than 12.2℃. And there was no correlation between precipitation and pattern identification of stroke.

• 대한안전경영과학회지
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• 제10권4호
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• pp.93-104
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• 2008

A successful fire risk assessment is depends on identification of risk, the analytical process of potential risk, on estimation of likelihood and the width and depth of consequence. Take the influence on enterprise into consideration, Fire risk assessment could carry out along the evaluation of the risk importance, the risk level and the risk acceptance. A large part of the limitation of choosing the risk assessment techniques impose restrictions on expense and time. If it is unnecessary high level risk assessment or Probabilistic Risk Assessment of buildings, in compliance with the Relative Ranking Method, Fire risk indexing and assessing is possible. As working-level technique, AHP method is useful with practical technique.

• 국제초고층학회논문집
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• 제7권4호
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• pp.265-285
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• 2018

This paper presents a state-of-the-art review on the design, research and education aspects of fire safety engineering (FSE) with a particular concern on high-rise buildings. FSE finds its root after Great Fire of Rome in 64 AD, followed by Great London Fire in 1666. The development of modern FSE is continuously driven by industry revolution, insurance community and government regulations. Now FSE has become a unique engineering discipline and is moving towards performance-based design since 1990s. The performance-based fire safety design (PBFSD) involves identification of fire safety goals, design objectives, establishment of performance criteria, and selection of proper solutions for fire safety. The determination of fire scenarios and design fires have now become major contents for PBFSD. To experience a rapid and positive evolution in design and research consistent with other engineering disciplines, it is important for fire safety engineering as a profession to set up a special educational system to deliver the next-generation fire safety engineers. High-rise buildings have their unique fire safety issues such as rapid fire and smoke spread, extended evacuation time, longer fire duration, mixed occupancies, etc., bringing more difficulties in ensuring life safety and protection of property and environment. A list of recommendations is proposed to improve the fire safety of high-rise buildings. In addition, some source information for specific knowledge and information on FSE is provided in Appendix.

• 문화기술의 융합
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• 제9권5호
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• pp.843-847
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• 2023

본 논문은 현대 기술이 발전함에 따라 다양한 화학 제품 및 인화성 물질이 광범위하게 사용되면서 각종 산업재해 및 농지와 대형 산불로 이어질 수 있는 화재 예방을 위해 효율적인 화재 식별을 탐지하는 모델을 제시한다. 본 논문에서는 영상을 활용하여 효율이 높고 빠른 시간안에 화재 연기를 검출할 수 있는 알고리즘을 제시하며, SVM(Support Vector Machine)과 K 접힘 교차 검증 기술을 기반으로 한 알고리즘을 제시한다. 영상을 분석하여 화재 및 연기 검출 알고리즘은 기존의 알고리즘에 비해 상대적으로 검출 성능이 우수하며, 본 논문에서 검출하는 화재 및 연기의 특징 분석이 안정적이고 효율적으로 분석되어 향후 화재 위험에 노출될 수 있는 다양한 분야에서 활용될 것으로 판단된다.

• 한국화재소방학회:학술대회논문집
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• 한국화재소방학회 2011년도 추계학술논문발표회 논문집
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• pp.123-126
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• 2011

화재의 원인과 확산과정을 과학적으로 설명하는 화재 감식분석에 있어 예방과 피해를 최소화하기 위해 화재 감식분석기법은 계속 변화되고 있으며 또한 이에 대한 과제가 증가되고 있는 추세이다. 따라서 본 연구에서는 화재감식에서 기초적이고 필수적인 화재성격판단과 연소흔적 판단, 발화원의 판단에 대해서 서술하고 이에 대한 향후 과제를 제시하였다.

• 한국화재소방학회:학술대회논문집
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• 한국화재소방학회 2011년도 추계학술논문발표회 논문집
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• pp.127-130
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• 2011

화재 시뮬레이션이라 함은 현실적으로 화재의 재현은 불가능한 관계로 컴퓨터를 이용하여 화재모델을 표현하는 방법을 취하는 것으로 이것을 시뮬레이션이라 하며, 이를 통하여 대상물의 특징을 해석 규명하여 현실화 한 것이 화재 시뮬레션이다. 나날이 증가하고 있는 화재시뮬레이션의 필요와 중요성에도 불구하고 국내에선 개발자체가 지지부진한 상태이며, 금번 화재감식 시뮬레이션의 개발에 앞서 외국에서 사용되고 있는 화재 시뮬레이션의 비교 분석을 통하여 미력이나마 시뮬레이션 개발에 도움이 되고자 한다.

• 동의생리병리학회지
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• 제24권2호
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• pp.177-186
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• 2010

This study is about researching DongEuiBoGam by analysing with pattern identification of modern Traditional Korean medical patholgy as more logical, systematic and standardized theory. Disease pattern mechanisms of essence, spirit, qi and blood in NaeGyungPyeb of DongEuiBoGam are these. In Essence, this explain mechanism of disease patterns those are seminal emission, dream emission, spermatorrhea, white ooze. These disease pattern's mechanisms are kidney yang deficiency, kidney yin deficiency, heart yang deficiency, heart yin deficiency, heart qi deficiency, spleen qi deficiency and so on. On viewpoints of viscera and bowels they are related with heart, kidney, spleen. And most of them are deficiency from deficiency-excess Pattern Identification. Classifying disease pattern of qi is about upward, downward movement and more concentrated deficiency than excess pattern. Fright palpitations can be classified heart deficiency with timidity, heart blood and qi deficiency, heart qi deficiency, heart blood deficiency, heart qi movement stagnation, water qi intimidating the heart, phlegm-fire harassing the heart, phlegm clouding the pericardium, and so on. Palpitations can be classified heart blood deficiency, heart yin deficiency, heart deficiency with timidity, heart spleen blood deficiency, spleen qi deficiency, phlegm-fire harassing the heart, intense heart fire, and so on. Forgetfulness can be classified heart spleen blood deficiency, heart spleen qi deficiency, kidney essence deficiency, heart qi deficiency, non-interaction between the heart and kidney, etc. for deficiency pattern, phlegm clouding the pericardium for excess pattern. In Blood just say inside bleeding pattern's category, there are nose bleeding, flopping syncope, qi counterflow, blood vomiting, hemoptysis, spitting of blood, bloody stool, hematuria, and so on. Like these, this study identify pattern of disease in DongEuiBoGam by mechanism of disease theory.

• 한국안전학회지
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• 제38권4호
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• pp.23-31
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• 2023

Revising the Occupational Safety and Health Act led to enacting and revising related laws and systems, such as placing fire observers in hot workplaces. However, the operating standards in such cases are still ambiguous. Although fire accidents occur through multiple and multi-step factors, the hazards of fire accidents have been identified in this study as individual rather than interrelated factors. The aim has been to identify multiple factors of accidents, outlining fire and explosion accidents that recently occurred in the domestic manufacturing industry. First, major keywords were extracted through text mining. Then representative accident types were derived by combining the main keywords through the co-word network analysis to identify the hazards and their relationships. The representative fire accidents were identified as six types, and their major hazards were then addressed for improving safety measures using the identification of hazards in the "Risk Assessment" tool. It is found that various safety measures, such as professional fire observers' training and clear placement standards, are needed. This study will provide useful basic data for revising practical laws and guidelines for fire accident prevention, system supplementation, safety policy establishment, and future related research.