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최영두,김석표,이동언,양창혁 한국화재감식학회 2021 한국화재감식학회 학회지 Vol.12 No.3
Due to the recent abnormal temperature phenomenon, smoke screen disinfection is used to control pests relatively easily in livestock houses and farm houses due to severe damage to pests regardless of the season As a result, fire cases are often reported. In this study, the temperature change of the vaporizer during the operation of the fogging machine was measured using a total of three types of fogging machine, and the possibility of fire due to surrounding combustibles was confirmed through reproduction experiments. Through reproduction experiments and fire cases in this study, we would like to suggest safety measures and prevention measures when using a fogging machine.
추나로 발생된 통증으로 오인된 만성 기침에 의해 유발된 늑골골절 1례
최영두,조수정,정찬영,김경호,김갑성,이승덕,Choi, Young-Doo,Jo, Su-Jeong,Jung, Chan-Yung,Kim, Kyung-Ho,Kim, Kap-Sung,Lee, Seung-Deok 척추신경추나의학회 2015 척추신경추나의학회지 Vol.10 No.2
Objectives: The purpose of this study is to discriminate the cough-induced rib fracture with chest pain occurred after chuna therapy. Methods: A 68-year-old female patient who is suffering from left chest wall pain with chronic cough was treated by Korean medical treatment and chuna therapy from November 11th 2014 to November 15th 2014. The improvement of the patient's pain was measured by 100 mm Visual Analog Scale (VAS). For diagnosis the rib fracture, we conducted the radiography, computed tomography (CT), and bone scan. Results: After treatment, pain intensity was decreased and the rib fracture was negative in radiography and CT. But, in bone scan, the 5th-8th rib fractures in left side were detected. Conclusions: When the patient with chest pain visit the hospital after chuna therapy, a doctor keep in mind the possibility of coughinduced rib fracture.
최영두,김석표,이동언,고석균 한국화재감식학회 2019 한국화재감식학회 학회지 Vol.10 No.3
In the tourism submarine, there exist no explosive materials, but two fire cases are reported. Hydrogen emitted from the lead-acid battery of submarine is filed up for a long time and causes an explosion. Frictional sparks generated by grinding work start the ignition. In the experiment, the amount of hydrogen generated from the battery is calculated and the pressure to cause the explosion is proved. Since the minimum ignition energy of hydrogen is small(0.02mJ), ignition starts even for the small spark of grinder. Providing a suitable ventilation system and battery storage system is the most useful methods to prevent the explosion fire of the tourism submarine. Way to prevent explosion by hydrogen inside the submarine by providing a ventilation and detection system of hydrogen that causes explosion.
근접 센서의 방위정보를 이용한 수중표적 예상위치 추정 기법
최영두,김정훈,윤경식,서익수,이동훈,이균경,Choi, Young-Doo,Kim, Jung-Hoon,Yoon, Kyung-Sik,Seo, Ik-Su,Lee, Dong-Hun,Lee, Kyun-Kyung 한국군사과학기술학회 2014 한국군사과학기술학회지 Vol.17 No.4
Proximity sensor networks are aimed at estimation kinematic state of target using estimated position of the target by each sensor node or target parameter. To analyze the kinematic state of target, traditional approaches require detections on multiple sensors, very large number of sensors to achieve acceptable performance. In this paper, we propose a novel method which can estimate predicted position of the underwater target using minimum proximity sensor with bearing information to this problem. The proposed algorithm was verified performance through simulation.
금융위기 이후 정치역학의 변화에 따른 EMU 체제와 은행연합
최영두,강보경,이갑수 한국유럽학회 2015 유럽연구 Vol.33 No.1
The first decade of economic and monetary union in Europe(EMU) has been a resounding success. EMU has brought significant benefits to its member countries: it has led to remarkable macroeconomic stability and accelerated trade and, in particular, financial integration in the euro area. However, imbalances within EMU - differences in growth, inflation, competitiveness, current account and budget balances - have also increased during the last 10 years, and the global economic crisis has made these imbalances and their economic implications more visible and challenging. There are important policy lessons to be learned from the crisis. Policy coordination among the EMU members should be improved and structural reforms accelerated, the framework for the supervision of financial markets strengthened, and external representation streamlined. With the necessary political will, the crisis can be a catalyst for deeper and broader economic coordination and surveillance in the euro area. 유럽 국가들은 1920년대 변동환율제에서 환율전쟁의 경험으로 인해 고정환율제의 필요성에 대한 의견이 일치되었다. 그리고 EMU는 체제의 출범 후 10년 동안 다양한 성과를 거두었음에도 불구하고 글로벌 금융위기로 인하여 EMU 회원국들의 재정상황은악화되었다. 현재, 위기극복을 위한 정책수단으로 유럽안정메커니즘(ESM)을 도입하고다양한 경제정책의 Governance 개혁을 시도하고 있다. 유럽 금융위기는 개별 국가 차원의 위기 해결을 위한 정책수단에는 한계가 있었으며 유로존 금융기관들이 상호 밀접하게 연계되어 있었기 때문에 위기 상황이 빠른 시간 내 해소되기 어려웠다. 유로존 차원의 근본적 해결방안이 논의되고 있지만, 각국의 정치적 입장 차이로 단기간 합의점을찾는 것 또한 어려운 상황이다. EU 통화통합의 이론적 토대가 된 최적통화지역 이론은 아직 체계적인 틀을 갖춘 이론이기 보다는 다양한 이론들의 총합으로 보는 것이 적절하다 유로지역 통화통합 전개 과정을 . 살펴보면, EU는 고정환율제를 통해 거시경제와 금융시장의 안정을 추구했지만, 시도하는 고정환율제들이 모두 실패했다. 본 연구에서는유로지역 통화통합 이후 EU 금융시장의 제도적 진화에 대하여 살펴보고, 최근 유럽 금융위기에 대한 유럽연합의 대응 및 역내 채무위기 탈출을 위한 새로운 해법으로서의 정책수단들을 정치적 결정요인으로 전망코자 한다.
다중경로 환경에서 균일한 크기의 첨두치를 가자는 LFM 잔향 백색화 기법의 성능 분석
최영두(Young-Doo Choi),최병웅(Byung-Woong Choi),윤경식(Kyung-Sik Yoon),이균경(Kyun-Kyung Lee) 대한전자공학회 2015 대한전자공학회 학술대회 Vol.2015 No.6
In this paper, we analyse a peformance of prewhitening method LFM reverberation with regular value of peaks in the multipath environment. In the algorithm, the error of AR modeling for reverberation is reduced by extending the modeling range to satisfy stationary for frequency and it improve the performance of the existing prewhitening method for reverberation with regular value of peaks. The algorithm performance is analyzed through Simulation.