• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2008년도 추계학술대회 및 정기총회
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• pp.448-452
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• 2008

Organization wishes to develop newer and more complex system according as social structure is more complex and a technology develops more. Therefore, field of system engineering in development of new system is realized by all-important essential boundary. However cost of SE have considered restrictively being not about SE cost having applied SE. About this problem, this study provides COSYSMO as model for SE cost estimation, as the application example, estimate SE cost for smart UAV system applying COSYSMO in PRICE Trueplanner.

• 시스템엔지니어링학술지
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• 제8권2호
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• pp.1-10
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• 2012

This paper aims to analyze the result of SE Process Implementation on Light Rail Transit(LRT) Project. Currently the Light Rail Transit Project of Korea applies SE to the intermediate phase, that is, E&M phase which is a manufacturing and designing procedure. More seriously, the application effect of SE is not remarkable because it applies to some specific engineering fields like RAMS and it depends on superficial consulting of foreign companies with low SE support capability and investment capital. This study points out that the "Requirement Analysis" and "System Alternative Review" has not been conducted from the initial phase (basic plan and basic design) of the LRT projects. Several projects indicate that the amount of investments for SE activities through the Korea LRT project is relatively very small in comparison with the global capital which is about 10% of total project budget. Furthermore, Korea LRT projects have very few SE professionals and weak SE organization with no government directions and guide book for the efficient implementation of SE for the LRT projects.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.3312-3317
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• 2011

Recently, the demand regarding reliability and safety of the railroad are increased as built to Driverless LRT system. Therefore, PM and SE technique is applied for efficient management of a construction business. In case of SE(System Engineering) in domestic, most foreign companies are doing to lead but we are under effort for the environment that a domestic company can lead. In this study, We emphasize to SE importance of pre-business for operation to be effective of Driveless LRT system, and propose about activities in the SE at requirements definitions and requirements analysis steps of a highest level. To achieve this, We propose SE Application Methods of Pre-Business regarding assistance process of project planning, evaluation and control, and risk management.

• 시스템엔지니어링학술지
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• 제3권1호
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• pp.1-7
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• 2007

For the systems engineering process-based development, all requirements of 'Smart UAV Development Program' have been constructed as the database of CORE(R), computer aided systems engineering tool. In this paper, the construction and application of model-based test & evaluation system using those database is described, which prevents omitting essential tests and performing unnecessary rests and enables automatic reflection of database changes and standardization of document formats.

• 한국산학기술학회논문지
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• 제16권6호
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• pp.4137-4146
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• 2015

시스템의 규모와 요구기능은 점점 대형화되고 복잡해지고 있다. 이러한 시스템 개발 프로젝트의 성공적인 수행을 위해서는 프로세스에 따른 체계적인 시스템공학(SE)과 프로젝트관리(PM) 활동이 요구되고 있다. 시스템 개발 조직에서는 SE&PM 프로세스 개선 및 능력평가 모델인 CMMI를 채택하여 SE&PM 능력 확보에 노력하고 있으며, 이를 위해 조직의 비즈니스 특성에 맞는 조직 표준 프로세스를 구축하여 적용하고 있다. 하지만 시스템 개발조직 현장에서는 CMMI 프로세스영역 간 상호연관성에 대한 충분한 이해부족으로 조직 프로세스 구축에 어려움이 따르고 있다. 또한 SE와 PM활동은 시스템 개발에 있어서 상호 밀접하게 연관되어 있기 때문에 SE와 PM 프로세스는 상호 통합 및 연계성이 확보되어야만 효과적이고 효율적인 프로젝트 수행이 될 것이다. 본 논문에서는 시스템 개발 조직에서 CMMI 기반 조직 프로세스 구축에 참조되고 활용될 수 있는 조직의 SE&PM 통합 프로세스 아키텍처를 제시한다.

• Bulletin of the Korean Chemical Society
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• 제34권8호
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• pp.2321-2324
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• 2013

An improved hybrid solar cell was obtained by focusing on the effects of ligand for CdSe nanoparticles, in the active layers. The performance was compared by mixing nanoparticles capped with pyridine or oleic acid for the acceptor material into poly(3-hexylthiophene):[6,6]-phenyl C61 butyric acid methyl ester based active layer. The solar cells with pyridine capped CdSe nanoparticles showed a power conversion efficiency of 2.96% while oleic acid capped CdSe nanoparticles showed 2.85%, under AM 1.5G illumination. Formation of percolation pathways for carrier transport and a reduction in the hopping event resulted in better performance of pyridine capped nanoparticles.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2003년도 추계학술대회 논문집(II)
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• pp.98-103
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• 2003

Recently, to solve the urban transportation problem, the introduction of Light Rail Transit system has been proceeded positively. therefore, development of the Korean standard LRT system in which safety, efficiency and cost effectiveness are emphasized. The Korea Railroad Research institute study on Rubber Tired AGT system of Light Rail Transit to obtain the essential technology and engineering know-how, which leads lower LRT construction cost. In the development procedure, SE(system Engineering) is needed for combination of subsystem and optimum operation effect. This study is focused on the interface of LRT subsystem(Development of the rubber tired LRT, Power supply system, signalling and train control system, Elevated track structure for the rubber tired LRT), a important part of SE, to develop of the driverless LRT system and establish the test and evaluation.

• 한국분말재료학회지
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• 제23권2호
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• pp.143-148
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• 2016

A microfluidic reactor with computer-controlled programmable isocratic pumps and online detectors is employed as a combinatorial synthesis system to synthesize and analyze materials for fabricating CdSe quantum dots for various applications. Four reaction condition parameters, namely, the reaction temperature, reaction time, Cd/Se compositional ratio, and precursor concentration, are combined in synthesis condition sets, and the size of the synthesized CdSe quantum dots is determined for each condition. The average time corresponding to each reaction condition for obtaining the ultraviolet-visible absorbance and photoluminescence spectra is approximately 10 min. Using the data from the combinatorial synthesis system, the effects of the reaction conditions on the synthesized CdSe quantum dots are determined. Further, the data is used to determine the relationships between the reaction conditions and the CdSe particle size. This method should aid in determining and selecting the optimal conditions for synthesizing nanoparticles for diverse applications.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2010년도 춘계학술대회 논문집
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• pp.903-909
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• 2010

The highest priority for passenger safety should be system performance guarantee in LRT(Light Rail Transit) based on a fully-automated manless metro system. In order to realize spotless manless automatic operating system through system performance guarantee, the role of SE(Systems Engineering) is of utmost importance. Currently, SE initiatives for local LRT projects are not cost-effective and heavily dependent on overseas firms due mostly to the lack of knowledge and experience in SE. This paper aims to review the appropriateness of cases of SE implementation on the basis of LRT projects either in progress or in the introduction stage to local market by examining, comparing and analyzing the applied cases.

• 시스템엔지니어링학술지
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• 제19권2호
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• pp.135-144
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• 2023

Artificial Intelligence (AI) is a prominent topic in almost every field. In Korea, Systems Engineering (SE) procedures are applied in Defense Acquisition, and it is anticipated that SE procedures will also be applied to systems incorporating AI capabilities. This study explores the applicability of the concepts "AI4SE (AI for SE)" and "SE4AI (SE for AI)," which have been proposed in the United States, to the Korean context. The research examines the feasibility of applying these concepts, identifies necessary tasks, and proposes implementation strategies. For the AI4SE, many attempts and studies applying AI to SE Processes both Requirements & Architectures Define, System implementation & V&V, and Sustainment. It needs Explainability and Security. For the SE4AI, the Functional AI implementation level, Quality & Security of the Data-set, AI Ethics, and Review policies are needed. Furthermore, it provides perspectives on how these two concepts should ultimately converge and suggests future directions for development.