• Title/Summary/Keyword: The causes of fire

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A Study on the Actual Education Condition and Improvement Program of Fire Investigator (화재조사자의 교육실태 및 개선방안에 관한 연구)

  • Choi, D.M.;Park, C.W.;In, S.J.;Lee, C.W.
    • Fire Science and Engineering
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    • v.21 no.4
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    • pp.72-80
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    • 2007
  • In order to breed fire investigators, can scientifically find out the truth of fire causes, the development of special and systematic education programs and the repetitive retraining are the most important factor. In this study, the working problems of curriculum for fire investigation course were analyzed through the survey. The curriculum and management status of domestic and foreign professional fire investigation education authority were compared and analyzed. And we suggested that the possible solutions to the problem, which can affect on the education effects, curriculums, training methods, selective methods, and effective applying method.

The Standardized Methods for Improvement of Maintenance and Performance Construction of Deterioration caused by Fire damage (화재피해 콘크리트의 유지관리 및 시공성능 향상을 위한 표준화방안)

  • Seo, Dong-Goo;Kim, Dong-Eun;Kim, Bong-Chan;Kwon, Young-Jin
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2013.05a
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    • pp.16-18
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    • 2013
  • A fire outbreak in a reinforcement concrete structure looses the organism by different contraction and expansion of hardened cement pastes and aggregate, and causes cracks by thermal stress, leading to the deterioration of the durability. So, concrete reinforcement structure is damaged partial or whole structure system. Therefore accurate diagnosis of deterioration is needed based on mechanism of fire deterioration in general concrete structures. Fundamental information and data on the properties of concrete exposed to high temperature are necessary for accurate diagnosis of deterioration. In this study, consider case of investigation methods and repair work in fire damaged structure concrete.

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The Standardized Methods for Improvement of Maintenance Deterioration caused by Fire damage (국제 표준화를 위한 화재이후의 유지관리 시스템 개발)

  • Kwon, Young-Jin;Koo, In-Hyuk;Kim, Dong-Eun;Seo, Dong-Goo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2013.11a
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    • pp.230-231
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    • 2013
  • A fire outbreak in a reinforcement concrete structure looses the organism by different contraction and expansion of hardened cement pastes and aggregate, and causes cracks by thermal stress, leading to the deterioration of the durability. So, concrete reinforcement structure is damaged partial or whole structure system. Therefore accurate diagnosis of deterioration is needed based on mechanism of fire deterioration in general concrete structures. Fundamental information and data on the properties of concrete exposed to high temperature are necessary for accurate diagnosis of deterioration. In this study, consider case of investigation methods and repair work in fire damaged structure concrete.

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Fire Suppression Performance of a New Automatic Fire Extinguisher with Fusible Metal Detectors (이융성금속 응용 자동감지형소화기의 소화성능 특성에 관한 연구)

  • 박용환
    • Fire Science and Engineering
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    • v.17 no.1
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    • pp.1-7
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    • 2003
  • In general, small buildings and residence housings rely on manual fire extinguishers instead of automatic fire suppression systems, which causes bigger disasters during the absence of human-beings or in the presence of children or the olders. For this reason, simple structured and low-cost automatic fire extinguisher using fusible metal detector was newly developed and patented. In this paper, some field tests were carried out to investigate its fire suppression performance. As a result, reaction time of the detection parts varied from 2 min 19s to 7 min 20s depending upon the room size and installation position. It was suggested that to reduce reaction time within 3 minutes, fusible metals with lower melting point should be adopted and the installation location should be moved to near ceiling instead of below 1.5 m.

The Damage Countermeasures and Aspects of the fire on the power lines (전력선로에서의 화재의 양상과 피해 감소방안)

  • NamKung, D.;Ahn, J.S.;Min, B.W.;Choi, Y.C.;Jo, S.S.;Han, S.O.
    • Proceedings of the KIEE Conference
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    • 2001.11b
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    • pp.142-145
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    • 2001
  • Recently transmission and distribution power facilities have been often damaged severely by fire which broke out around the facilities in forest. It causes a power failure and thus gives an economic losses to both the public and the power utilities. Sometimes the fire can happen by an electrical accident such as the electrical short circuit or the ground short circuit. In this paper, trend of breaking out the fire has been investigated and an countermeasure against the economic losses due to the fire has been studied.

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A Study on the Performance Variation Depending on Using Period of Ionization Smoke Detector (이온화식연기감지기의 사용기간 경과에 따른 성능변화 연구)

  • Kim, Shi-Kuk;Baek, Won-Don;Ok, Kyung-Jea;Lee, Chun-Ha
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2008.04a
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    • pp.175-179
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    • 2008
  • This paper studied on the performance variation depending on using period of ionization smoke detector. In korea, there were a lot of loss of lives and property because of fire. In many cases, an alarm equipment didn't operate though it was set up, so it causes the failure of early evacuation and fire suppression. Accordingly, an experiment on the change of ionization smoke detector in capacity performed with ionization smoke detector which is set up with fire objects.

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Fire Patterns According to the Blood Hb-CO Concentration of Charred Bodies (소사체의 혈중 헤모글로빈-일산화탄소 농도에 따른 연소형태 연구)

  • Choi, Seung-Bok;Oh, Bu-Yeol;Choi, Don-Mook
    • Fire Science and Engineering
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    • v.26 no.3
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    • pp.40-48
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    • 2012
  • Fire patterns have been used to determine the origin and cause of fires in every setting imaginable. However, it is very difficult to identify fire patterns and causes from the fire-damaged remains of a devastated structure. If someone was killed by the fire, it is possible to identify fire patterns by analyzing the Hb-CO concentration in charred bodies of deceased as well as the pace of the fire. For example, a low level of Hb-CO concentration in the charred bodies indicate a rapid fire with accelerants and the death was caused by severe heat and thick toxic fumes. However, a high level of Hb-CO concentration in the charred bodies demonstrates that the fire was slow and/or there was a flameless form of combustion. Thus, it is possible to identify fire patterns through analyzing the level of Hb-CO concentration on the dead from the fire. In this study, the Hb-CO concentration in the charred bodies was from 3 % at the case of gas burning oneself to death to 93 % at the death caused by smoldering fire.

An Observation of the Pediatric Diarrhea (소아설사(小兒泄瀉)에 관(關)한 문헌적(文獻的) 연구(硏究))

  • Lee Ji-Eun;Kim Jang-Hyun
    • The Journal of Pediatrics of Korean Medicine
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    • v.13 no.1
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    • pp.167-180
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    • 1999
  • Diarrhea is the most common digestive disease next to influenza especially in chidren. The most important spleen function is that of transporting and transforming food and fluids. Any spleen disharmomny will therefore always influence the digestive process, with such symptom as abdominal distention, lack of appetite and loose stools. The results were as follows: 1. The most common causes of diarrhea were cold(寒) Fire(熱) Dampness(濕) and the other causes of diarrhea were Fear(驚) 담(Phlegm) spleen-Qi defiency(脾氣虛), injury diet(傷食). 2.Treatment of oriental medicine consist of herb-medicine Cause of cold is Bujaejungtang(附子理中湯) Cause of fire is Sungbisan(醒脾散) Cause of dampness is Oryungsan(五笭散)

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A literatual study on the causes and treatments of the melasma. (기미에 關한 文獻的 考察)

  • Shin, Yun-sang;Roh, Sek-seon
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.11 no.1
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    • pp.82-98
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    • 1998
  • In the literatual studies on the causes and treatments of the melasma, the results were as follows. 1. Melasma is the blackish patch on the face, is belong to the cartegory of the 'Myunjin(面塵)', 'Myunganzung(면간증)', 'Jakban(雀斑)' etc. in Oriental medicine 2. Melasma is deeply associated with Yangming channel in Meridian, with the spleen, stomach, heart and kidney in Viscera. 3. The pathogenic factors of Melasma is divided five parts. One is insufficient of Yangming's energy in Neijing(內經). Two is incoordination between vital energy and blood caused by wind-evil and phlegm-retention syndrome. Three is anxiety impairing the spleen. Four is kidney-asthenia and fire-hyperactivity. Five is heat-evil. 4. In the treatments of Melasma, Sthenia-syndrome was used cooling blood and activating blood circulation, or dispelling wind-evil and promoting meridian, or expelling fire-evil and removing toxic material etc. Asthenia-syndrome was used invigorating the liver and kidney, or nourishing yin and keeping fire downwards etc. 5. Melasma is concerned with sun-light, is mostly seen in female. 6. In the prescription of Melasma, it was used Jujesamultang(酒製四物湯加減), Okyong -san(玉容散), Chunghwasungitang(沖和順氣湯), Okyongseosisan(玉容西施散), Yukmiji-hwanghwan(六味地黃丸) etc.

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An Experimental Study on the Fire Investigation to the Broken Plane Types of Glass (유리 파단면의 화재감식에 관한 실험적 연구)

  • Mun, Yong-Soo;Kong, Ha-Sung
    • Journal of the Korea Safety Management & Science
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    • v.10 no.4
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    • pp.105-109
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    • 2008
  • The purpose of this study is to distinguish the causes of broken glass on doors or windows when it is originally kept among the remains on the floor in fire site - whether it was broken due to heating or outer power-through test and characteristics of the broken plane including the pattern on the plane. Addition to it, the study tries to find characteristics to judge the point and direction of breakdown through the analysis of glass broken by outer power. With two assumed causes - a) breakdown due to heating and b) breakdown due to outer power-3 pieces of glass plates ($30cm{\times}30cm{\times}5mm$) were tested for each case, getting the results as following: First, for the glass broken due to the change of temperature, the broken plane is of slow and smooth curve without any pattern. Second, for the glass broken due to outer power, with the impact point as the center, the glass shows breakdown of radial type and the side shows breakdown of near-perpendicular type. The far the broken piece is from the impact point, the bigger the size is. The broken piece at the impact point is of long triangle type and the two long planes of the triangle shows semi-arc with the center of breakdown point and the other plane shows opposite pattern. Third, when glass that is damaged by outer power is heated, damaged forms and side patterns of the glass that is damaged by outer power are heated and disappeared.