• Title/Summary/Keyword: Disaster Causes

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A Phenomenological Studies on Ignition Characteristics of Wires by Local Impact, Over Loading and Overcurrent (국부적 충격, 과부하 및 과전류에 의한 전선의 발화특성에 관한 현상학적 연구)

  • Lee, Jeong-Jin;Lee, Chang-Woo;Choi, Don-Mook
    • Journal of the Korea Safety Management & Science
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    • v.12 no.4
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    • pp.53-60
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    • 2010
  • When a fire breaks out, it is difficult to find out the causes of the fire, because combustible things around fire scene are usually burnt away. Among many causes of fires are electronic wires, this thesis deal with the destroyed sheath of electronic wires caused by fire. It was studied with the use of measurement devices focusing on the distinctions of wires and conductors. This study especially emphasized the process of deterioration, burning pattern, and composition of electronic wire conductor. It also has a phenomenological approach to the distinctive cause of fire by some partial force. The fire prevention methods have been suggested through the analysing results of fire patterns. This study is expected to be a useful material for analyzing various electrical fires.

A Study on the Types and Measures of Fatal Accidents Due to Construction Project Schedule Rate (건설현장 공사 공정율에 기인한 중대재해 분포 및 대책)

  • Park, Ok-Nam
    • Proceedings of the Korean Society of Disaster Information Conference
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    • 2022.10a
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    • pp.169-170
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    • 2022
  • As the size of construction projects has become larger in recent years, the nature of the disaster safety factors along with the progress of construction is also becoming more complex and diversified. Accordingly, the introduction of computerized construction, new technologies, and new construction methods has resulted in a variety of risk factors in the process and operations, and many new safety construction methods are being tried. Since the construction industry has variable working environments and constantly changes working methods and components depending on the rate of progress, workers at construction sites are always exposed to risk depending on the specific circumstances of the construction industry. This study attempts to collect and analyze major accident cases generated by major accident construction projects as a result of progress in construction work, and to derive the major causes and causes for each safety management activity that affect safety accidents.

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The Meteorological Disaster Analysis for the Natural Disaster Mitigation in the Korean Peninsula (자연재해 저감을 위한 한반도 피해 현황 분석)

  • Park, Jong-Kil;Choi, Hyo-Jin;Jung, Woo-Sik
    • 한국방재학회:학술대회논문집
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    • 2007.02a
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    • pp.319-322
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    • 2007
  • This study aims to find the characteristics of damage and states of natural disasters at the Korean Peninsula from 1985 to 2004. Using the data of Statistical yearbook of calamities issued by the National Emergency Management Agency and Annual Climatological Report issued by the Korea Meteorological Administration. we have analyzed the cause, elements, and vulnerable regions for natural disasters. Major causes of natural disaster at Korean Peninsula are four, such as a heavy rain, heavy rain typhoon, typhoon, storm snow, and storm. The frequency of natural disaster is the highest from June to September. The period from December to March also shows high frequency. The total amount of damage is high during the summer season(Jul.-Sept). The period from January to March shows relatively high amount of damage due to storm and storm snow The areas of Gangwon-do, Gyeongsangnam-do and Gyeongsangbuk-do are classified the vulnerable region for the natural disasters. By establishing mitigation plans which fit the type and characteristics of disaster for each region, damage from disaster can be reduced with efficient prevention activities.

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Prevention Meteorological Database Information for the Assessment of Natural Disaster (자연재해 평가를 위한 방재기상 DB 정보)

  • Choi, Hyo-Jin;Park, Jong-Kil;Jung, Woo-Sik
    • 한국방재학회:학술대회논문집
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    • 2007.02a
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    • pp.315-318
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    • 2007
  • In order to reduce the amount of damage from natural disasters, we needs prevention meteorological database classified into the cause of disaster, damage elements etc. For this, we have analyzed four data, such as Statistical yearbook of calamities issued by the National Emergency Management Agency and Annual Climatological Report issued by the Korea Meteorological Administration and Recently 10 years for natural disaster damage and Statistics Yearbook from the Ministry of Government Administration and Human affairs. Through the analysis of disaster data, we have selected input variables, such as causes and elements, occurrence frequencies, vulnerable areas of natural disaster, etc. In order to reduce damage from natural disaster, the prevention activities and forecasting based on meteorological parameters and damage datas are required. In addition, it is necessary to process meteorological information for disaster prevention activities. Through these procedure, we have established the foundation of database about natural disasters. This database will be used to assess the natural disasters and build risk model and natural disasters mitigation plan.

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A Method for Preventing Falling Accident in Small and Medium-sized Construction Companies (중소건설업체의 떨어짐 재해 예방방법)

  • Kim, Eun-Jeung
    • Journal of the Regional Association of Architectural Institute of Korea
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    • v.20 no.6
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    • pp.25-32
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    • 2018
  • According to the data released by Korea Occupational Safety & Health Agency, construction workers suffering from falling disaster have been increasing continuously for the last five years, and in fact, small and medium construction companies' falling disaster forms over 97% of all every year. This means that to reduce falling disaster significantly, it is needed to get rid of disaster taking place in small and medium construction companies. Here, this study aims to analyze various causes of falling disaster in small and medium construction companies, examine how those factors are correlated with one another, and suggest how to manage the risk of falling disaster effectively. According to the study results, main factors influencing falling disaster in small and medium construction companies are found as follows: Situational Awareness/Risk Perception, Fatigue/Alertness, Communications, Equipment/Facilities, and Personal Protective Equipment (PPE) in the Direct Level, Management/Supervision, Education/Training, and Planning in the Organizational Level, and Management's Commitment to Safety in the Policy Level.

Implementation of Framework for Efficient and Scalable Disaster Response Services

  • Seokjin Im
    • International Journal of Advanced Culture Technology
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    • v.11 no.1
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    • pp.290-295
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    • 2023
  • The global warming by greenhouse gases causes climate change and disasters such as earthquakes and tsunamis frequently, leading to great damage. It is important to build efficient and scalable disaster response services to minimize the damage. Existing disaster warning service by the mobile text is limited by the scalability and the data size to be delivered. In this paper, we propose a framework for disaster response services that is efficient and flexible by allowing to adopt various indexing schemes and scalable by supporting any number of clients in disaster situations anytime and anywhere. Also, the framework by wireless data broadcast can be free from the limitation of the size of data to be delivered. We design and implement the proposed framework and evaluate the framework. For the evaluation, we simulate the implemented framework by adopting various indexing schemes like HCI, DSI and TTSI, and by comparing the access times of the clients. Through the evaluation, we show that the proposed framework can provide efficient and scalable and flexible disaster response services.

A Study of Disaster Recognition Based on Disaster-related Place Names (재난과 관련된 지명에 투영된 방재인식에 관한 연구)

  • PARK, Kyeong;KIM, Sunhee
    • Journal of The Geomorphological Association of Korea
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    • v.17 no.2
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    • pp.15-28
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    • 2010
  • This study aims at the exploration of usefulness of traditional knowledge reflected in the place names. This study is useful and pragmatic for the establishment of disaster prevention measures from the analyses of disaster database, which shows the regional distribution and historical changes of disaster characteristics through history. The construction and categorization of disaster-related place names are based on historical maps and literatures on place names. One hundred twenty eight disaster-related place terminologies are selected based on disaster causes and possibilities. Design of field structures and category codes for the disaster-related place names has been proposed and the construction of disaster-related place names from the six sources has been completed.

Assessment of Human Impact on Mekong River Flood by Using Satellite Nightlight Image

  • Try, Sophal;Lee, Giha;Lee, Daeeop;Thuy, HoangThu
    • Proceedings of the Korea Water Resources Association Conference
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    • 2016.05a
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    • pp.187-187
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    • 2016
  • High intensity of population distribution in deltaic setting especially in Asia tends to have increased and causes coastal flood risk due to lower elevations and significant subsidence. Maximum or peak discharge of flood always causes numerous deaths and huge economic losses. New technology of spatial satellite image has been applied to analyze flood damage. In this research, the relationship of nightlight intensity associated with flood damages has been determined during 1992-2013 with spatial resolution of 30 arc sec ($0.0083^{\circ}$) which is nearly one kilometer at the equator in whole six countries along the Mekong River (i.e., China, Myanmar, Lao PDR, Thailand, Cambodia and Vietnam). ArcGIS Hydrological Flow Length Tool has been used to determine the distance of each pixel areas from the rivers and streams. Statistical analysis results highlight the significant correlation R = 0.47 between nightlight digital number and economic damages per unit area (US$/km2) and R = 0.62 for number of affected people for unit area ($people/km^2$). The areas near by the Mekong River and its tributaries correspond to high flood damage. This spatial analysis result is going to be prestigious key information to the regions and all related stakeholders for decisions and mitigation strategies.

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On the Characteristics of Damage and States of Natural Disasters for Water Resources Control at Gimhae, Gyeongsangnam-do (김해시 수자원관리를 위한 자연재해 현황과 피해특성분석)

  • Park, Jong-Kil;Choi, Hyo-Jin;Jung, Woo-Sik;Gwon, Tae-Sun
    • 한국방재학회:학술대회논문집
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    • 2007.02a
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    • pp.94-97
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    • 2007
  • This study aims to find the characteristics of damage and states of natural disasters at Gimhae, Gyeongsangnam-do from 1985 to 2004. Using the data of Statistical yearbook of calamities issued by the National Emergency Management Agency and Annual Climatological Report issued by the Korea Meteorological Administration. we have analyzed the cause, elements, and vulnerable regions for natural disasters. Major causes of natural disaster at Gimhae are four, such as a heavy rain, heavy rain typhoon, typhoon, storm snow, and storm. The cause of disaster recorded the most amount of damage is typhoon. The areas of Hallim-myeon, Sangdong-myeon, and Saengnim-myeon are classified the vulnerable region for the natural disasters in Gimhae. Therefore, it seems necessary to build natural disaster mitigation plan each cause of disaster to control water resources and to reduce damage for these areas.

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Problems and Improvement Directions for Damage Investigation of Aquaculture Products from Natural Disaster (양식수산물 자연재해 피해조사의 문제점과 개선방향 연구)

  • Kang, Jong-Ho;Moon, Gun-Ho
    • The Journal of Fisheries Business Administration
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    • v.50 no.3
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    • pp.31-42
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    • 2019
  • This study aims to determine problems of the damage investigation system of aquaculture products resulting from natural disaster and to deduce improvement plans for such problems. The main problems revealed from this study were as follows: 1) detailed damage investigation is carried out only by one particular organization, 2) for aquaculture insurance subscribers another detailed damage investigation is conducted to reveal the causes of natural disaster by a joint investigator team formed according to a different legislation with a different purpose, 3) damage investigation is usually suffered from lack of labor, budget and time due to the restriction of natural damage to a certain period of season leading to the absence of quick reaction capability for irresistible natural disasters, and 4) there are no specified procedures and protocols for deciphering causes of a natural demage. The improvement plans to find solutions for such problems are as follows: 1) for the investigation, the object, method and role of the investigation organization should be clarified by improving the present legislation, 2) investigation methods for determining the demage causes should be systematized by making a manual to minimize disputes, and 3) supports for the investigation organization should be institutionalized to guarantee sufficient budget and manpower. Under the present circumstance with continuous natural damages, smooth procedures of damage compensation would lead to the management stability of aquaculture farms.