• Korea Information Processing Society Review
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• v.15 no.6
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• pp.14-24
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• 2008

• The KIPS Transactions:PartD
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• v.12D no.5 s.101
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• pp.709-718
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• 2005

To correspond with the unpredictable future tactical environment, Ive expanded the application of M&S(Modeling & Simulation) that is more scientific and more economic in a field of weapon system development process. This paper describes experience in development of ADSF(Air Defense Simulation Framework) that supports not only HLA(High Level Architecture) which is an international standard in M&S but also TCP/IP as well as real-time distributed simulation. ADSF has been applied to the M-SAM(Medium Range Surface to Air Missile) System Simulator, and satisfying test results through GPS(Global Positioning System) timer has been acquired. As a result, an ADSF which is able to support HLA and TCP/IP as veil as precise real-time simulation has been successfully made. we were in need or a real-time simulation engine to support Air Defense System Simulators that were consisted of several subsystems.

• Journal of the Korean Society of Clothing and Textiles
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• v.30 no.7 s.155
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• pp.1146-1159
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• 2006

The purpose of this study was to offer body suit sizing system for young women aged 18-24. Many anthropometric measurements and other related data form 418 subjects were analyzed by various statistical methods. As a result of cluster analysis, we categorized somatotypes into 3 types: H-type, A-type, N-type as the most common. Subjects was covered 86.5% by KS body suit sizing system and 33.2% by body suit company. So we considered to produce AAA, AA cup size and small size body suit for raising the coverage. As size distribution by cluster analysis, H-type was mainly distributed ${70{\sim}85(AAA{\sim}D)}$ and M, L's hip size. A-type was mostly was ranged ${70{\sim}85(A{\sim}C)}$ and S, M size. N-type was widely showed ${65{\sim}85(AAA{\sim}I)}$ and S, M, L's hip size. Accordingly, it is reasonable to consider size distribution and physical characteristics by these figure types when suggesting sizing system as well as design and production.

• Journal of Aerospace System Engineering
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• v.12 no.5
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• pp.48-53
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• 2018

In this study, Real-Time Operating System(RTOS) and 3-D collision avoidance algorithm are implemented to three different Miciro Controller Unit(MCU)s and their performances compared. We selected Microchip Technology's ATmega2560, STM's ARM Cortex-M3 and ARM Cortex-M4, because they are widely used. FreeRTOS, an open-source operating system, was also used. The 3D collision avoidance algorithm consists of the vertical and the horizontal avoidance algorithm, which is implemented using C++. The performances of the MCUs were compared with respect to used memory and calculation time. As a result, Cortex-M4's calculation time was the fastest and ATmega2560 used least memory.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.11
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• pp.2751-2757
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• 2015

To obtain the system requirement specification in the beginning of the precision guidance and control system development, the effectiveness and reliability analysis for the system are necessary. The main purpose of this research is to obtain the system requirement specification by carrying out the effectiveness analysis using the modeling and simulation(M&S) scheme. M&S model is constructed using 6-DOF dynamic model, environment model, guidanc -navigation & control model. Assume that the navigation sensor is consist of inertial navigation sensor(INS) and doppler velocity log(DVL), and the speed and direction of current is environment parameter. The effectiveness analysis is carried out using circular error probability(CEP) and variance analyze scheme. Also, the effectiveness analysis is utilized for cost-performance analysis considering the cost of commercial INS and DVL sensor. This paper shows the high-level INS and the low-level DVL configure a high price-performance integrated navigation system.

• Korean Journal of Animal Reproduction
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• v.24 no.3
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• pp.269-279
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• 2000

The present study was carried out to evaluate the effect of glycosaminoglycans added to the culture medium on the mouse embryo development to the blastocyst stage. In vitro fertilized mouse oocytes were cultured in Ham's F-10 supplemented with 10% FBS either in the absence or presence of 0.1, 0.5, 1.0 mg/$m\ell$ hyaluronic acid, chondroitin sulfate, and dermatan sulfate, respectively. After 4 days in culture, embryos developed to blastocysts were observed in all groups. There was a significant increase in blastocyst yield in the presence of hyaluronic acid and chondroitin sulfate (p<0.05), whereas dermatan sulfate was ineffective. Development to the blastocyst stage was best supported in 0.1, 0.5, 1.0 mg/$m\ell$ hyaluronic acid and 0.5mg/$m\ell$ chondroitin sulfate. It is concluded that hyaluronic acid and chondroitin sulfate support the development of mouse oocyte fertilized in vitro to the blastocyst stage. Furthermore, these results suggest that glycosaminoglycans can be utilized to support embryo development in vitro as a nutrient instead of serum.

• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.2081-2082
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• 2008

본 논문에서는 전기공사의 표준 공사원가 산정기준인 전기부문 표준품셈 체계개편이 2002-2004년까지 있었던 바, 동 체계개편 과정에서의 문제점 보완과 신규 제정 품셈에 대한 현황을 분석하고 공사원가에 미치는 영향 및 품셈 제.개정 과정에서의 문제점 등을 분석하여 합리적이고 객관적인 공사원가 산정기준을 만드는데 기여하고자 체계개편 내용과 동 내용을 적용한 2006년 이후 최근 2년간의 제 개정 현황을 비교하여 종합적으로 분석 표준품셈 제.개정의 합리적 개선방안을 제시하고자 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2016.04a
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• pp.229-232
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• 2016

개정된 정보통신망법 정보보호 관리체계에 대해 민간, 공공기관들의 관심과 인증을 준비하는 조직이 늘어나고 있다. 의무 인증대상자가 대. 중견기업, 비(非) 정보통신서비스 사업자로 확대되고 국제표준 요구사항의 일부 인정이 가능해지며 ISO/IEC 27001:2013과 정보보호 관리체계에 대한 동시 인증을 효과적으로 추진하기 위한 가이드라인이 필요하다. 본 연구에서는 '정보보호 관리체계'(ISMS)의 요구사항, 통제항목 및 심사 과정에서의 차이점 분석(gap analysis)을 통해, 국제표준과 국내 법령에 적합한 ISMS를 효과적으로 구현할 수 있도록 한다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.9
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• pp.397-404
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• 2019

When developing a weapon system, a T&E(Test and Evaluation) can be performed using M&S for the test items that cannot be evaluated in the real world. In this case, the VV&A activities are required to prove the credibility of M&S for the T&E. Recently, the use of M&S has been increasing as the R&D trends of weapon systems are becoming more advanced. Therefore, the VV&A activities are also increasing. The VV&A activities aim to verify, validate, and accredit that the simulation can represent a real system and ensure credibility regarding its purpose and intention of use. VV&A activities are divided into V&V and Accreditation. When performing VV&A in the ADD (Agency for Defense Development), the V&V activities are performed by a separate department of the ADD and the accreditation activities are performed in the DTAQ (Defense Agency for Technology and Quality). This paper proposes a V&V process for a T&E of M&S that has been performed in ADD. The process is used to verify and validate the documents and data generated during the development process according to the accreditation criteria, and provides objective data that can be used to judge whether the accreditation decision and acceptance criteria are met.

• Informatization Policy
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• v.18 no.1
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• pp.73-99
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• 2011

The Korean military has developed and operated computer, network, communication technologies as well as war game models to strengthen the national defense M&S continuously. In particular, lots of projects for developing models for drill/training, analyses, and acquired fields are being conducted in the military. However, it needs to look into the actual conditions and seek for strategies to develop the national defense M&S. First of all, in the field of war games, various national defense architectures have been built, including war and information environment architectures starting from the resource architecture in 2006. However, the function of drill and training is limited, so additional war game architectures are required to be built. To build joint war game architectures available as an effective verification tool to implement plans of the national defense and war architectures, this study examines the actual conditions of the current war game systems and suggested building joint war game architectures.