• Title, Summary, Keyword: National Transportation Safety Board

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Chest Compression Energy(kg) Measurement of 4 Types of Rescue Device on the Floor (4종류의 구급장비 및 마루(Floor) 위에서 시행한 가슴압박 에너지(kg)측정 실험에 관한 연구)

  • Shin, Dong-Min;Han, Yong-Taek;Kim, Seung-Yong;Park, Si-Eun
    • Journal of the Korean Society of Safety
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    • v.29 no.6
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    • pp.125-131
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    • 2014
  • The purpose of this study is to investigate the effect of high quality CPR using the 4 types of rescue device equipment and chest compressions energy measurement in pre-hospital settings. So, we used the mode to insert load cell in ALS Skill master Manikin to develop CFMM(Compression Force Measurement Manikin) on main stretcher, CPR board, long spine board, scoop stretcher and floor. And, our research team could know that the main stretcher needed average force of 32.55 (${\pm}1.01$) kg, CPR board of 27.23 (${\pm}1.08$) kg, long spine board of 27.13 (${\pm}1.18$) kg, Scoop Stretcher of 27.38 (${\pm}1.05$) kg and Floor of 27.24 (${\pm}0.93$) kg. CPR board must be necessary in the case of CPR on main stretcher in a moving ambulance. But if the condition of patient's back surface is the removable stretcher and the long spine plate, the patient doesn't have to be spent time to use a CPR board. Furthermore, this research suggests to consider that how to take advantage of the education to students for the equipment to check in real time the energy(kg) requirement of chest compressions.

The Analysis of the Major Accidents caused by Fatigue of Pilot with TEM (조종사 피로에 의한 항공사고의 TEM 적용을 통한 공통요인 도출에 관한 연구)

  • Jeon, Seung-Joon;Choi, Jin-Kook
    • Journal of Convergence for Information Technology
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    • v.9 no.12
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    • pp.157-165
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    • 2019
  • Charles Lindbergh has experienced the uncontrolled situation of the aircraft while he was asleep with open eyes during his Atlantic crossing flight around 20 hours after departure from the New York in 1927 because of the fatigue. According to the NTSB(National Transportation Safety Board) reports, about 40 incidents are related fatigue in each year. The sleep loss is the most wanted item for the NTSB and may cause the similar effect as the alcohol does. The fatigue may affect the management of the threats and errors especially during take-off and landing. In this study, threats and errors of major accidents that NTSB analysed fatigue as a causal factor will be identified in order to understand the seriousness of fatigue.

The Relative Analysis of the Civil Helicopter Accident (민수용 헬리콥터의 사고 비교분석)

  • Lee, Jung-Hoon;Ahn, Iee-Ki
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.15 no.1
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    • pp.18-25
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    • 2007
  • The safety should be primarily considered for air vehicle, such as helicopter, which is not easy to cope with when out of order or loss of control that followed catastrophe. The U.S National Transportation Safety Board (NTSB) investigated and analyzed for 34 years rotorcraft accidents that occurred from 1963 through 1997. This paper handles intensively the relative investigation and analysis of recent 10 years domestic civil helicopter accidents to those of the United States in order to increase the safety of helicopter transportation and to consider the main design parameter before we develop Korean Civil Helicopter. To understand the overview of civil turbine helicopter accident, it uses the NTSB's accident investigation results and the overall accident trend for U.S civil single and twin turbine engine helicopter according to category, cause, activity, and phase of operation.

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The Thermal Stability Analysis of Fumes and Mists During the Drying Process of a PCB (PCB 건조공정의 흄과 미스트에 대한 열안정성 분석)

  • Chu, Chang Yeop;Lee, Jung Suk;Baek, Jong Bae
    • Journal of the Korean Society of Safety
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    • v.34 no.4
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    • pp.32-40
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    • 2019
  • During the manufacturing process of a printed circuit board(PCB), fumes and mists are generated as the ink dries on the PCB surface. The generated fumes and mists are deposited in the dryer wall and the exhaust duct. Deposited fumes and mists may present a fire hazard if the dryer temperature control system fails. In this study, the thermal stability of the fumes and mists deposited in the dryer and ducts has been analyzed by experimental methods such as thermo gravimetric analysis (TGA), differential scanning calorimetry (DSC), auto ignition temperature (AIT), and multiple mode calorimetry(MMC). According to the experimental analyses, experimental samples are likely to generate gas at the temperature ($180{\sim}240^{\circ}C$) that deviates from the normal operating temperature ($150{\sim}156^{\circ}C$). It has been shown that the thermal stability is degraded when the temperature is deviated from the normal operating temperature. In the end, engineering and management safety measures of accidental prevention have been suggested.

Development of an Autonomous Worker-Following Transport Vehicle (I) - Manufacture and indoor experiment of the prototype vehicle - (농작업자 자동 추종 운반차 개발(I) - 시작기 제작 및 실내성능시험 -)

  • 권기영;정성림;강창호;손재룡;한길수;정석현;장익주
    • Journal of Biosystems Engineering
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    • v.27 no.5
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    • pp.409-416
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    • 2002
  • This study was conducted to develop a vehicle, leading or following a worker at a certain distance to assist laborious transporting works in greenhouses. A prototype vehicle, which consisted of the rear driving, the front steering and the console units, was designed and tested in the ideal indoor conditions. Results of this study were summarized as following: 1. The driving unit was designed to travel at the speed ranges of 0.3∼0.8 m/sec depending on the operating modes with a maximum payload of 100 kg. 2. The console unit consisted of a main-board including a 80C196KC microprocessor and peripheral devices, a power-board and safety interlock. Worker-leading, and following modes were available in automatic and manual modes. 3. Steering was achieved by turning the steering motor against the sensed direction. Proper steering angles for correcting travel direction were determined as 5 and 9 degrees when sensing cultivation beds and plants, respectively.

Regulation and Its Tasks of Privately Contracted Armed Security Personnel on Board Ships Against Somali-based Piracy (소말리아 해적행위 대응을 위한 민간무장보안요원 승선의 규제 및 그 과제에 관한 연구)

  • Keum, Jong-Soo
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.20 no.1
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    • pp.26-32
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    • 2014
  • The increased threat to commercial shipping by Somalia-based pirates has triggered an increased use of PMSC(Private Maritime Security Contractors). The use of PMSC to protect merchant ships against Somali-based piracy threat seems to have been most effective counter-piracy measures. However, there are various legal and practical questions around using PMSC and PCASP(Privately Contracted Armed Security Personnel) on board at sea. This paper aims to study the regulation and its problems of PMSC and PCASP on board to protect merchant ships against Somali-based piracy in the Indian Ocean and Gulf of Aden. In particular, this paper focuses on the legal issues including jurisdictional issues of PCASP on board merchant vessels, use of force by PCASP in self-defense, and authority for using PMSC. Currently, the legal framework relating to use of PMSC and PCASP on board protecting ships from Somali-based piracy is complex, sometimes ambiguous or inconsistent, and currently in a state of flux. Thus, this paper concludes that at this juncture an effort to coordinate this legal framework is necessary, as regards both the interpretation of existing rules related to PCASP on board merchant ships under UNCLOS(United Nations Convention on the Law of the Sea) and the creation of new rules. Also, this paper suggested that there is an urgent need to establish the PMSC-specific laws in Korea.

Analysis of risk factors of the fisherman's in coastal purse seine fishery using the accident compensation insurance proceeds payment data of NFFC (수협 어선원 재해보상보험 자료를 이용한 연안선망어업 위험요인 분석)

  • CHOI, Kyu-Suk;LEE, Chun-Woo;PARK, Su-bong;JANG, Yong-Suk;LEE, Yoo-Won
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.56 no.4
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    • pp.340-346
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    • 2020
  • In this study, the risk factors of coastal purse seine fisherman were analyzed through a survey of fishery workers of coastal purse seine fishery and the accident compensation insurance data of the fisheries workers of the National Federation of Fisheries Cooperatives (NFFC). The classified fishing operation accident data was analyzed through 4M (Man, Machine, Media, Management) model of the National Transportation Safety Board (NTSB) and the accident prevention measures were presented using Harvey's 3E (Engineering, Education, Enforcement) model. The rate of accidents on coastal purse seinens each year was 75.8‰, 36.7‰ and 74.8‰ from 2015 to 2017. The accident frequency resulting from slipping was the highest, and the risk of a contact with gear was low. When comparing each insurance data, the average value of the contact with gear accident was the highest. This research result is expected to be important data in identifying and preventing safety hazards of coastal purse seiner fisherman in the future.

A Study on the Maneuvering Area of Ship in Moving at Single Point Mooring (SPM 이안 선박의 조종영역에 관한 기초 연구)

  • Kim Jin-Soo;Jong Jae-Yong;Kim Kung-Tae;Kim Jong-Rok
    • Proceedings of KOSOMES biannual meeting
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    • pp.21-26
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    • 2005
  • The work of VLCC SPM mainly is accomplished on the open sea On the open sea as a result of meteorological condition and the ocean wave influence, When the weather condition is get bed, peremptorily moving to the safety place, because of the gale and the billow, almost happened frequently, the pilot is unable to go on board and the tug is also unable to be used Now bemuse of the bad weather the VLCC SPM moving to the other safety place frequently happened in the ulsan port. the construction of new harbor, it constructed many break water around SPM. So that it is necessary to propose the new standard about how to maneuvering area actually. Now our country is at the blank stage about the establishment of SPM research Most of the situations are refer to overseas standard But these standards lack of consistency and clarity. So when moving to the other safety place from SPM, we must carry through the researching and study on the ships using by sailing data of AIS. we must put forward a new standard about maneuvering area of ship in moving at SPM.

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A Study on the Maneuvering Area of Ship in Moving at Single Point Mooring (SPM 이안 선박의 조종영역에 관한 기초 연구)

  • Kim Jin-Soo;Jong Jae-Yong;Kim Kyung-Tae
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.11 no.2
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    • pp.19-25
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    • 2005
  • The work of VLCC SPM mainly is accomplished on the open sea. On the open sea as a result of meteorological condition and the ocean wave influence, When the weather condition is get bed, peremptorily moving to the safety place, bemuse of the gale and the billow, almost happened frequently, the pilot is unable to go on board and the tug is also unable to be used Now bemuse of the bad weather the VLCC SPM moving to the other safety place frequently happened in the ulsan port. the construction of new harbor, it constructed many break water around SPM. So that it is necessary to propose the new standard about how to maneuvering area actually. Now our country is at the blank stage about the establishment of SPM research Most of the situations refer to overseas standards. But these standards lack consistency and clarity. So when moving to the another safe place from SPM, we must Carry through the research and study on the ships using sailing through AIS Data We must put forward a new standard about maneuvering area of ships moving at SPM.

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