• 제목/요약/키워드: chemical defense

검색결과 395건 처리시간 0.027초

화생방 보고관리 및 모델링 S/W 시스템(NBC_RAMS)의 라그랑지안 퍼프 및 입자 모델에 따른 화학작용제 이송·확산 분석 (A Study on Transport and Dispersion of Chemical Agent According to Lagrangian Puff and Particle Models in NBC_RAMS)

  • 구혜윤;서지윤;남현우
    • 한국군사과학기술학회지
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    • 제26권1호
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    • pp.102-112
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    • 2023
  • This research mainly focuses on the transport and dispersion of chemical agent plume according to the Lagrangian Puff Model and Lagrangian Particle Model of NBC_RAMS(Nuclear, Biological, Chemical Reporting And Modeling S/W System). NBC_RAMS was developed with the purposes of estimating the fate of Chemical, Biological, and Radioactive(CBR) agent plumes and evaluating damages in the Republic of Korea. First, it calculates the local weather pattern, i.e. wind speed, wind direction, and temperature, by considering the effects of land uses and topography. The plume behaviors are calculated by adopting the Lagrangian Puff Model(LPFM) or Lagrangian Particle Model(LPTM). In this research, we assumed a virtual chemical agent exposure event in a stable atmospheric condition during the summer season. The plume behaviors were estimated by both LPFM and LPTM on the used area(urbanized and dry area) and the agricultural land. The higher heat flux in the used area led to stronger winds and further downward movement moving of the chemical agent than the farmland. The lateral dispersion of the chemical plume was emphasized in the Lagrangian Puff Model because it adopted Gaussian distribution.

ABL의 한국적 미사일방어 적용 가능성 연구 (A Study on the Possibility of Airborne Laser Applications to the Korean Missile Defense)

  • 권용수;박은주
    • 한국군사과학기술학회지
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    • 제12권1호
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    • pp.51-59
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    • 2009
  • This work describes the possibility of ABL(Airborne Laser) applications to the Korean missile defense. The missile defense system is the multilayered defense system that consists of shooters, sensors and BM/C4I. The ABL is the missile defense system of boost phase. It is placing a high energy, megawatt class chemical oxygen iodine laser and highly sophisticated beam control/fire control and battle management systems on a modified Boeing 747-400F aircraft to detect, track and destroy ballistic missiles in their boost phase of flight. This work analysis the ballistic missile's threat of North Korea and the flight trajectory for the SCUD missile that is cut-off by the ABL. From this analysis the possibility of the ABL applications to the Korean missile defense is presented.

Synthesis of Polymers Including Both Triazole and Tetrazole by Click Reaction

  • Shin, Jung-Ah;Lim, Yeong-Gweon;Lee, Kyung-Hee
    • Bulletin of the Korean Chemical Society
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    • 제32권2호
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    • pp.547-552
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    • 2011
  • Azido contained polymers were treated with various substituted N-propargyl tetrazoles in $CH_2Cl_2/H_2O$ at room temperature by Cu-catalyzed [2+3] cycloaddition to afford high yields of the corresponding polymers, possessing both triazole and tetrazole moiety.

지표면 화학작용제 비접촉 탐지를 위한 단자외선 라만분광법 연구 (Deep UV Raman Spectroscopic Study for the Standoff Detection of Chemical Warfare Agents from the Agent-Contaminated Ground Surface)

  • 최선경;정영수;이재환;하연철
    • 한국군사과학기술학회지
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    • 제18권5호
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    • pp.612-620
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    • 2015
  • Short-range detection of chemical agents deposited on ground surface using a standoff Raman system employing a pulsed laser at 248 nm is described. Mounted in a vehicle such as an NBC reconnaissance vehicle, the system is protected against toxic chemicals. As most chemicals including chemical warfare agents have unique Raman spectra, the spectra can be used for detecting toxic chemicals contaminated on the ground. This article describes the design of the Raman spectroscopic system and its performance on several chemicals contaminated on asphalt, concrete, sand, etc.