• 제목/요약/키워드: Emergency Protection System

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Study on the Liquid Rocket Engine Health Monitoring and Emergency Protection System (액체로켓엔진 상태진단/비상보호시스템 연구)

  • Kim, Seung-Han;Nam, Chang-Ho;Seol, Woo-Seok
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2007.11a
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    • pp.178-182
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    • 2007
  • This paper reviews on the LRE health monitoring and emergency protection system to protect test object engine system and engine test facility, in case of various fault occurrence at LRE testing. General composition and major technical consideration of LRE health monitoring system and emergency protection system are reviewed. Moreover, some application of LRE health monitoring/emergency protection system to development test of major LRE component such as turbopump testing, gas generator and combustion chamber test are reviewed.

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Study on the Emergency Protection System of Liquid Rocket Engine (액체로켓엔진 비상보호시스템 연구)

  • Kim, Seung-Han;Han, Yeoung-Min
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2011.11a
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    • pp.97-103
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    • 2011
  • This paper describes the main considerations for the development of engine emergency protection system and applications to preliminary engine development tests. Emergency protection system performed its role without failure to shutdown test very quickly for the prevention of development of malfunctioning of test articles, which protected test articles and test facility in all abnormal situation occurred during preliminary engine development test program. This results will be used for the development of engine emergency protection system.

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A Study on the Necessity of an Addressable Emergency Broadcasting System to Improve Evacuation Performance (피난성능향상을 위한 주소형 비상방송시스템의 필요성에 관한 연구)

  • Kim, Si-Kuk;Lee, Min-Yong;Lee, Chun-Ha
    • Fire Science and Engineering
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    • v.29 no.5
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    • pp.14-22
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    • 2015
  • This thesis is based on the study of necessity of an addressable emergency broadcasting system to improve evacuation performance in order to minimize human casualty by avoiding the initial evacuation after fires such as the multi-unit dwelling fire in Euijeongbu in 2015. To minimize the damage from fire generated in a complex internal structure such as modern buildings, introduction of adaptable emergency broadcasting system, could increase the efficiency of evacuation by preventing of initial mistaken evacuation directions by alerting the accurate location of fire to the occupants, is needed. As such, this study designed and fabricated the addressable emergency broadcasting system using the existing addressable system. Its performance was compared with a conventional emergency broadcasting system to confirm the necessity of the addressable emergency broadcasting system to improve evacuation performance. The test result showed that the addressable emergency broadcasting system decreased the evacuation time by up to 30.3% in a small-scale model evacuation performance experiment, up to 54.6% in a hallway evacuation performance experiment compared to the conventional emergency broadcasting system.

A Comparative Study on the Interim Measures of Protection and the Emergency Arbitrator Systems of International Arbitration Institutions (중재판정부의 임시적 처분과 국제중재기관들의 긴급중재인 제도 비교 연구)

  • Joo, E-Wha;Bae, Sang-Phil;Shim, Sang-Ryul
    • Journal of Arbitration Studies
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    • v.22 no.3
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    • pp.215-238
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    • 2012
  • This paper is to review the interim measures of arbitral tribunals in international commercial arbitration and to compare the emergency arbitrator systems of international arbitration institutions including the ICDR, SCC, SIAC, ACICA, and ICC. Most arbitration legislation and arbitration rules permit the arbitral tribunal to grant orders for interim measures of protection. Orders for interim measures by the arbitral tribunal are not self-enforcing. However, the revised articles with regard to interim measures of UNCITRAL Model Law of 2006 are regarded to contribute significantly to the effectiveness of interim measures in international commercial arbitration. A party that needs urgent interim or conservatory measures that cannot await the constitution of an arbitral tribunal may make an application for such measures. Major international arbitration institutions have their own rules and provisions for the emergency arbitrator system, which was set forth first by the ICRD in 2006. The application requirements for emergency arbitrators are almost the same. However, there are significant differences in details such as appointments and applications for challenging emergency arbitrators, the process and form of the emergency arbitrator's decision, etc. Therefore, it will be necessary to consider these differences for more desirable emergency arbitrator proceedings in Korea.

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Security Structure for Protection of Emergency Medical Information System (응급의료정보시스템의 보호를 위한 보안 구조)

  • Shin, Sang Yeol;Yang, Hwan Seok
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.8 no.2
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    • pp.59-65
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    • 2012
  • Emergency medical information center performs role of medical direction about disease consult and pre-hospital emergency handling scheme work to people. Emergency medical information system plays a major role to be decreased mortality and disability of emergency patient by providing information of medical institution especially when emergency patient has appeared. But, various attacks as a hacking have been happened in Emergency medical information system recently. In this paper, we proposed security structure which can protect the system securely by detecting attacks from outside effectively. Intrusion detection was performed using rule based detection technique according to protocol for every packet to detect attack and intrusion was reported to control center if intrusion was detected also. Intrusion detection was performed again using decision tree for packet which intrusion detection was not done. We experimented effectiveness using attacks as TCP-SYN, UDP flooding and ICMP flooding for proposed security structure in this paper.

Initial Management of Radiation Injuries

  • Linnemann Roger E.
    • Journal of Radiation Protection and Research
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    • v.5 no.1
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    • pp.11-25
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    • 1980
  • The increasing utilization of radioactive isotopes in industry, medicine and research has raised the question, 'How should hospitals deal with radiation injuries when they occur?' A system for initial management of radiation injuries has been developed by Radiation Management Corporation. Radiation injuries are classified and a treatment plan outlined for each at the emergency and short term medical care phase. This system includes clinical prognosis as well as a detailed plan for quick set up or a Radiation Emergency Area in any hospital. Procedures for patient admission, preparation of the facility, general decontamination, sample taking, and wound decontamination are included.

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An Off-site Screening Process for the Public in Radiation Emergencies and Disasters

  • Yoon, Seokwon;HA, Wi-Ho;Jin, Young-Woo
    • Journal of Radiation Protection and Research
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    • v.41 no.3
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    • pp.301-309
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    • 2016
  • Background: A contamination screening process for the local population in radiation emergencies is discussed. Materials and Methods: We present an overview of the relevant Korean governmental regulations that underpin the development of an effective response system. Moreover, case studies of foreign countries responding to mass casualties are presented, and indicate that responses should be able to handle a large demand for contamination screening of the local public as well as screening of the immediate victims of the incident. Results and Discussion: We propose operating procedures for an off-site contamination screening post operated by the local government for members of the public who have not been directly harmed in the accident. In order to devise screening categories, sorting strategies assessing contamination and exposure are discussed, as well as a psychological response system. Conclusion: This study will lead to the effective operation of contamination screening clinics if an accident occurs. Furthermore, the role of contamination screening clinics in the overall context of the radiation emergency treatment system should be clearly established.

Driver's Protection Method of Ambulance Car Accident (응급구조 교통사고에 대한 운전자의 보호방안)

  • Park, Hi-Jin;Kwon, Hayrran;Lee, Young-Hyun
    • The Korean Journal of Emergency Medical Services
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    • v.4 no.1
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    • pp.63-71
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    • 2000
  • Exceptive clause of ambulance stated in Road Traffic Laws of ambulance car accidents is not properly applied and emergency staffs who transfer over 85% of emergency cases are to be forced to start out to the emergency field with unstable conditions which they may be punished on the criminal and civil laws. Hereby this study makes the following suggestions to activate the duties of transferring emergency cases by emergency staffs, promote their morale and diminish the victim of emergency staffs due to traffic accidents. 1) It is prescribed that ambulance car drivers should be protected legally by applying the exceptive clauses thoroughly regulated in special case clauses because ambulance cars are used for the purpose of saving the human life. 2) On the traffic accidents occurred during the transfer of emergency cases, the special insurance system is created for treating the ambulance car accidents, not to bind the emergency staff's mistake to traffic law and the victims are compensated by the nation on the basis of insurance system and emergency staffs have the systematic security. 3) On the road over six lanes, emergency lane is set on the center and ambulance car should be used as the exclusive lane. 4) Ambulance car drivers must have the habit of transferring emergency cases rapidly within the range of legal operation.

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Automotive Occupant Protection Technologies (차량용 탑승자 보호 기술)

  • Lee, Seongsoo
    • Journal of IKEEE
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    • v.22 no.1
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    • pp.223-226
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    • 2018
  • Recently, various safety technologies have been extensively developed to protect occupants from accidents. This paper surveys various automotive occupant protection technologies such as antilock braking system, traction control system, electronic brake distribution, electronic stability control, autonomous emergency braking, airbag, seatbelt pretensioner, and active headrest. Their operation principles and implementations are also explained.

Real-time wireless marine radioactivity monitoring system using a SiPM-based mobile gamma spectroscopy mounted on an unmanned marine vehicle

  • Min Sun Lee;Soo Mee Kim;Mee Jang;Hyemi Cha;Jung-Min Seo;Seungjae Baek;Jong-Myoung Lim
    • Nuclear Engineering and Technology
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    • v.55 no.6
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    • pp.2158-2165
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    • 2023
  • Marine radioactivity monitoring is critical for taking immediate action in case of unexpected nuclear accidents at nuclear facilities located near coastal areas. Especially when the level of contamination is not predictable, mobile monitoring systems will be useful for wide-area ocean radiation survey and for determination of the level of radioactivity. Here, we used a silicon photomultiplier and a high-efficiency GAGG crystal to fabricate a compact, battery-powered gamma spectroscopy that can be used in an ocean environment. The developed spectroscopy has compact dimensions of 6.5 × 6.5× 8 cm3 and weighs 560 g. We used LoRa, a low-power wireless protocol for communication. Successful data transmission was achieved within 1.4 m water depth. The developed gamma spectroscopy was able to detect radioactivity from a 137Cs point source (3.7 kBq) at a distance of 20 cm in water. Moreover, we demonstrated an unmanned radioactivity monitoring system in a real sea by combining unmanned surface vehicle with the developed gamma spectroscopy. A hidden 137Cs source (3.07 MBq) was detected by the unmanned system at a distance of 3 m. After successfully testing the developed mobile spectroscopy in an ocean environment, we believe that our proposed system will be an effective solution for mobile real-time marine radioactivity monitoring.