• 한국시뮬레이션학회논문지
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• 제19권4호
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• pp.261-270
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• 2010

무기체계 효과도 분석을 위한 통합 시뮬레이션 엔진은 모델의 개발부터 시뮬레이션 수행 및 분석에 이르는 모델링 및 시뮬레이션 전 단계에 걸쳐 도구와 서비스 및 인터페이스를 제공해야 한다. 다양한 국방 통합 시뮬레이션 엔진을 제공하고 있는 국외와는 달리, 국내에서는 자체적인 분산 실시간 모의체계 엔진에 대한 연구 및 개발이 미흡하여 무기체계 M&S(Modeling and Simulation) 활동 시 유사 업무가 반복되고 있는 실정이다. 본 논문에서는 국외의 기 개발된 국방 M&S 모의엔진의 서비스를 비교 분석하여 무기체계 효과도 분석을 지원하기 위한 통합 시뮬레이션 엔진인 OpenSIM(Open Simulation Engine for Interoperable Model)을 소개하고, OpenSIM에서 제공하는 서비스의 범위 및 내용을 정의한다. 정의된 서비스는 모델링 실행 분석에서 공통적으로 많이 사용되는 클래스, 함수 및 데이터 등을 구현하여 프로그래밍의 복잡도를 감소시킬 수 있다.

• 안보군사학연구
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• 통권4호
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• pp.83-118
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• 2006

This study is to develop digital leadership in a field of national defense. Today, korean society is facing the crisis of national security. But national defense leadership is not show in the circumstance of national security crisis. As you know, national defense leadership is a process that make use of influence. Which means it converges people's interest and demands well and also show people the right vision of national defense and make them to comply the policy about national security. Because of the environmental change, our national defense leadership is having a new turning point. First, international order, which is under post-cold war, raises possibility of guarantee of peace and security in international society but also, cause the increase of multiple uncertainty and small size troubles in security circumstance. In addition, Korean society is rushing into democratization and localization period by success in peaceful change of political power went through about three times. The issue of political neutralization of military is stepping into settlement but still, negative inheritance of old military regime is worrying about it. In this situation, we can't expect rise in estimation about the importance of security and military's reason for being. So, military have to give their concern to not only internal maintenance of order and control and growth of soldiers but also developing external leadership to strength influence to society and military's the reason for being. So for these alternative I'm suggesting a digital leadership of national defense which fits digital era. This digital leadership is the leadership which can accept and understand digital technology and lead the digital organization. To construct digital national defense we need a practical leadership. The leadership has to be digital leadership with digital competence that can direct vision of digital national defense and carry out the policy. A leader who ha s digital leadership can lead the digital society. The ultimate key to construct digital government, digital corporate and digital citizen depends on digital leader with digital mind. To be more specific, digital leadership has network leadership, next generation leadership, knowledge driven management leadership, innovation oriented leadership. A leader with this kind of leadership is the real person with digital leadership. From now on, to rise this, we have to build up human resource development strategy and develop educational training program.

• 산업경영시스템학회지
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• 제35권1호
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• pp.198-213
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• 2012

Navy ship acquisition management business contributed to the korean Navy and defense exports with government suppliers in Korea for over 40 years. But due to advanced technology, development trend of Navy ship and defense export requirements, it enable to make a contribution to a better system improvement are being demanded. In this paper, an adjective Navy ship acquisition process is presented in order to improve the acquisition process takes the first step for acquisition planning process to enhance the efficiency and rationality that is based on consensus of Navy ship expert and experienced. In addition, systems engineering (SE) and quality control (QC) techniques based on Modeling and Simulation are investigated to carry out efficient project management and scientific quality control system in Navy ship acquisition process. Finally, it is suggested to apply SE/QC based on M&S for Navy ship acquisition process using civilian infrastructure and organizations in order to take advantage of the world's leading domestic industry based on considering the difficult conditions of Navy ship suppliers.

• 한국광학회지
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• 제19권2호
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• pp.144-149
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• 2008

대구경 레이저 광집속장치의 쿠데(Coude) 광경로를 구성하는 레이저 반사경들의 레이저 빔조사에 의한 열변형과 이에 따른 광파면 왜곡에 대한 연구를 수행하였다. 쿠데 광경로는 연결거울 3개와 고속조종거울 1개로 구성된다. 반사경은 레이저 빔 파장에 대하여 99.5%의 반사율을 갖으며, 반사경 거울면에 조사된 레이저 에너지는 초당 500 W 정도가 흡수된다. 레이저 빔을 5초 동안 조사하면서 유발된 열하중에 의한 거울의 열 변형과 이에 따른 광파면 왜곡을 분석하였다. 광파면 왜곡은 연결거울의 경우 334 nm_PV, 98 nm rms로 나타났으며 고속조종거울은 $11.5\;{\mu}m$_PV, $3\;{\mu}m$ rms로 나타났다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2009년도 제40회 하계학술대회
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• pp.1383_1384
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• 2009

In this study, CPPS(Compact Pulsed Power Suppy) has been developed. The goals of CPPS are charging energy 150kJ, trapezoidal pulsed power shaping of 150~250MW with about 1msec pulse width, consecutive charging rate of several times/min, and total system volume below $0.5m^3$. The CPPS is composed of 4 modules of 37.5kJ which can be operated independently. This paper describes the design, setup and performance of CPPS in experiment and simulation.

• 한국군사과학기술학회지
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• 제20권3호
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• pp.421-430
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• 2017

In this research, we propose a methodology for assessing security vulnerability of the national defense intelligence system, considering not only target elements but also the interconnection relationship of the whole system. Existing approaches decide the security vulnerability of the whole system by assessing only target elements. However, those approaches have an issue with potentially showing the same outcome for the systems that have identical target elements but the different types of interconnection relationships. We propose a more practical assessment method which takes the interconnection relationship of a whole system into consideration based on the concept of SNA(Social Network Analysis).

• The Korean Journal of Physiology
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• 제1권1호
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• pp.121-130
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• 1967

Determination of weekly and daily energy expenditure was made on 62 Republic of Korea Army cadets who were selected at random in order to estimate the weekly and daily ealorie expenditure. Basal metabolic rate (B.M.R.), and energy cost of various military and daily activities were measured by indirect calorimetry using open circuit method. Time-motion studies were also carried on using a stop-watch. The total weekly energy expenditure was calculated by summation of data using energy cost per minute, and the time spent on each activity. Determination of daily energy expenditure was deduced from each data of weekly energy expenditure. Food survey was also carried on for a week, and daily calorie intake was determined by a weekly average discounting loss in cooking. All measurements were determined from the Standard Table of Food Composition published by the Ministry of National Defense (1961). Following data were observed. 1. Physical status of cadets are as follows. Please note that the height and weight averages are 1-2cm and 4-5kg respectively over that of the Seoul National University students. First year Height 167.92 cm $(S.D.{\pm}4.09)$ Weight 61.72 kg $(S.D.{\pm}4.53)$ Second year Height 167.89 cm $(S.D.{\pm}3.46)$ Weight 63.01 kg $(S.D.{\pm}4.61)$ Third year Height 168.15 cm $(S.D.{\pm}4.24)$ Weight 43.48 kg $(S.D.{\pm}5.03)$ Fourth year Height 168.10 cm $(S.D.{\pm}3.70)$ Weight 64.02kg $(S.D.{\pm}5.10)$ 2. The B.M.R. of cadets averaged $36.57\;Cal./m^2/hr.(S.D.{\pm}3.63\;Cal./m^2/hr.)$ is almost equal with data on the same ages of civilians and the Japanese, but a lower average of $5.1\;Cal./m^2/hr.$ than that of a common soldier. 3. The energy expenditure during various military activities is close agreement with Consolazio. Passmore and Durnin, and Japanese reports.

• 한국멀티미디어학회논문지
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• 제22권8호
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• pp.930-939
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• 2019

High-Level Architecture(HLA)/Run-Time Infrastructure(RTI) are standards for distributed simulation systems and offer a technology to interconnect them and form one single simulation system. In defense domain, M&S is the only way to prove effectiveness of weapon systems except for Live Fire Testing (LFT). This paper focuses on guided missile simulations in weapon systems for engagement analyses and proposes the integrated flying vehicle model that is based on HLA/RTI. There are a lot of missiles in real world; therefore, we should develop each missile models in M&S in order to apply battlefield scenarios. To deal with the difficulties, in this paper, firstly, I classify these missiles into three models: ballastic, cruise, and surface-to-air missile models, and then I design each missile model and integrates them into a single model. This paper also offers a case study with my integrated flying vehicle model. At the conclusion, this paper presents contributions of this paper.

• 한국시뮬레이션학회논문지
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• 제26권2호
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• pp.31-39
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• 2017

본 연구는 무기체계의 단위비용을 고려한 K2(KC와 KAMD) 체계의 효과분석을 수행하였다. 단일 KC와 다중(고층 및 저층) KAMD를 가정하고, 각 체계에 임의의 무기체계를 설정하여 각각의 조합에 따라 총 12개의 시나리오를 작성하였다. 효과도는 전체 탄도미사일 위협 수량 대비 감소된 탄도미사일 위협의 비율로 정의하였으며, 비용은 발사된 무장의 수량과 단위비용으로 계산하였다. K2 체계의 효과도와 총비용은 몬테카를로 시뮬레이션을 1,000번 반복하여 추정하였다. 각각의 시나리오를 대안으로 하여 비용대 효과분석을 실시하였고, 효과고정법을 사용하여 최적 대안을 선정하였다. 연구 결과 KC 능력이 K2 체계의 방어 효과와 총비용을 결정하는 가장 중요한 요소였으며, 적정 수준의 저층방어체계를 갖춰야 요구되는 방어 효과를 달성할 수 있음을 확인하였다. 향후 연구에서 실질적인 무기체계 제원과 수명주기비용을 고려한 비용대 효과분석이 이루진다면 더욱 현실적인 분석이 가능할 것이다.

• 한국융합학회논문지
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• 제11권6호
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• pp.359-365
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• 2020

이 연구의 목적은 2019년 세계여자핸드볼선수권대회에서 상위 6개 국가에 대한 전력분석으로 주요득점 경로와 슈팅 유형별 성공률, 어시스트 빈도, 스틸, 블록, 슈팅 유형별 골키퍼 방어율에 대한 정보를 수집하여 분석하였다. 연구 결과를 바탕으로 다음과 같은 결론을 얻었다. 첫째, 득점 경로 분석결과, 대회 1위 네덜란드와 2위 스페인은 6m슛과 7m슛이 가장 많았으며, 3, 4, 5, 6위에서도 6m슛이 가장 많이 나타났다. 둘째, 슈팅 유형별 성공률 분석결과에서는 상위 6팀 모두 7m슛, 돌파슛, 속공슛 등으로 나타났다. 셋째, 어시스트 빈도분석 결과 기록에 의하면 대회 4위의 노르웨이가 6팀 중 가장 많은 어시스트를 기록했다. 넷째, 스틸 빈도분석 결과 6개 팀 중 노르웨이는 평균 5.2회로 가장 많은 스틸을 기록하였다. 다섯째, 슈팅 유형별 골키퍼 방어율을 분석한 결과 6팀 골키퍼 모두가 9m 슈팅에 대한 방어율이 가장 높은 것으로 나타났다. 따라서, 심층적인 경기전략분석을 위해서는 선수 개인 경기력에 대한 특성파악 및 정보 수집을 통하여 향후 후속연구로 진행될 필요가 있다고 생각된다.