• 제목/요약/키워드: systems

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A Study on the Application of Systems Engineering for Systems of Systems (복합시스템을 위한 시스템엔지니어링 적용방안에 대한 연구)

  • Kim, Jong Yoel;Ham, Bum Sik;Cho, Tae Hyoung;Lee, Bum Sug
    • Journal of the Korean Society of Systems Engineering
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    • 제6권1호
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    • pp.15-23
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    • 2010
  • This paper describes the application method of systems engineering for systems of systems and addressed the evolution in approach as organizations have evolved from standalone platform providers to architect of SoS. There is an increasing need to perform Systems of Systems Engineering(SoSE) in a global environment This has stimulated the development of new, innovative SoSE approaches that surpass current military and industry state-of-the-art systems engineering processes. The simple scaling of the former process was ineffective in dealing with global distributed large-scale integration efforts of network-centric systems of systems. A new SoSE process has been developed which is a significant breakthrough in the development of large complex systems and net-centric systems of systems. The SoSE process provides a complete, detailed and systematic development approach for military and civil SoS. In this point of view, this paper analyzes functionally the architecture framework, process and integrated verification & validation of SoSE. From results of this analysis, perspectives on the application of SoSE suitable for Korea aquisition environment are presented.

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High Speed and Sensitive X-ray Analysis System with Automated Aberration Correction Scanning Transmission Electron Microscope

  • Inada, Hiromi;Hirayama, Yoichi;Tamura, Keiji;Terauchi, Daisuke;Namekawa, Ryoji;Shichiji, Takeharu;Sato, Takahiro;Suzuki, Yuya;Ohtsu, Yoshihiro;Watanabe, Keitaro;Konno, Mitsuru;Tanaka, Hiroyuki;Saito, Koichiro;Shimoyama, Wataru;Nakamura, Kuniyasu;Kaji, Kazutoshi;Hashimoto, Takahito
    • Applied Microscopy
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    • 제45권1호
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    • pp.1-8
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    • 2015
  • We have developed a new HD-2700 (Hitachi High-Technologies Corp., Japan) scanning transmission electron microscope (STEM) that includes an automatic aberration correction function, and a large-solid-angle energy-dispersive X-ray spectroscopy detector that enables high-resolution and sensitive analysis. For observation with atomic resolution, using spherical-aberration-corrected STEM, in order that satisfactory performance of the device can be achieved readily, and within a short time, irrespective of the operator's skill level, a spherical-aberration-correction device with an automatic aberration-correction function was developed. This automatic aberration-correction function carries out the entire correction-related process (aberration measurement, selection and correction) automatically, with automatic selection of the aberrations that require correction, and automatic measurement of the appropriate corrections.

A Study on the ITS integrated airport security system (ITS 통합 공항 보안시스템에 관한 고찰)

  • Kim, Chun-Suk
    • The Journal of the Korea institute of electronic communication sciences
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    • 제8권2호
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    • pp.339-344
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    • 2013
  • Airport security activities to ensure the airport's facilities and assets from crime, such as theft, to prevent. security systems that support these activities efficiently so you can be called. security center systems, CCTV systems, access control systems, intrusion detection systems, security communication systems, warning broadcasting system, network security systems, perimeter intrusion detection systems, search systems, and information security systems for the security system will be examined.

THE INTEGRATION OF COMPONENTS OF FIRE TECHNOLOGY

  • Marchant, Eric W.
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 한국화재소방학회 1997년도 International Symposium on Fire Science and Technology
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    • pp.11-18
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    • 1997
  • Fire safety systems in large buildings are likely to be complex and may be designed independently of other systems. This means that the interactions and interfaces between the fire safety systems and between the environmental control systems and the fire safety systems may not be carried out properly. Many large, recent buildings have many technological component systems that are used for the control of the environment within the building. Because of the "special" nature of the fire safety systems there is little consideration is given to the possibility systems with a dual function. However, many of the functions of fire safety systems are extensions of systems that provide the day to day control over the internal environment. The present world-wide trend towards the establishment of performance codes, and regulations, will enable the functional design of all systems and thereby allow closer integration of the "ordinary" and "special" systems. Some aspects of the functional and performance characteristics of systems in buildings are introduced and discussed. Special reference is made to the contributions of the systems to the minimisation of fire damage.e minimisation of fire damage.

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The Influences on Self-Efficacy to Quality of Mobile Financial Information Systems (자기효능감이 모바일 금융 정보 시스템 품질에 미치는 영향)

  • Lee, Jang-Hyung;Kim, Jong-Won
    • The Journal of Information Systems
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    • 제20권4호
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    • pp.103-117
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    • 2011
  • The rapid pace of adoption of mobile handsets has created new mobile financial services. The success of mobile financial information systems will depend on consumer self-efficacy and a sound business model. Self-efficacy has been described as the belief that one is capable of performing in a certain manner to attain certain goals. This is directly related to consumer behavior, but it also affects consumer behaviors indirectly through its impact on goals. And self-efficacy influences the challenges that people take on as well as how high they set their goals. The objective of the study to investigates the effect of self-efficacy on mobile financial information systems. In order to do that, self-efficacy, mobile financial information systems reliability, mobile financial information systems use intensity are conceptualized by survey questionnaire. Our empirical analysis based on 462 survey data shows that self-efficacy effects on mobile financial information systems quality. In addition we also found that self-efficacy effects on mobile financial systems reliability and usage intention. And we found that mobile financial information systems reliability effects on mobile financial systems use intention. And we also found that mobile financial information systems usage intention effects mobile financial systems quality.

Integration of Expert Systems Into Decision Support Systems for Decision-Making

  • Park, Young H.
    • Journal of Korean Society for Quality Management
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    • 제17권2호
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    • pp.113-120
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    • 1989
  • The purposes of this paper are to compare expert systems and decision support systems, and illustrate the possible benefits when expert systems are integrated into the model base of a decision support systems for supporting decision-makers. Integrating expert systems capability into decision support systems may enhance the quality and efficiency of both computerized systems. This integration can improve selection of model, analysis, model management, judgement, and modeling. Thus the results are much more powerful decision support systems than are presently available.

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Application of Permanent Magnet Synchronous Machines in Automotive Steering Systems

  • Sebastian Tomy;Islam Mohammad S.;Mir Sayeed
    • KIEE International Transaction on Electrical Machinery and Energy Conversion Systems
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    • 제5B권2호
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    • pp.111-117
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    • 2005
  • Several of the conventional hydraulic systems in an automobile are now being replaced by more reliable and energy efficient electromechanical systems. Developments in the brushless permanent magnet machine and in the power and control electronics are the key factors responsible for this transformation. These applications brought out some performance challenges associated with the brushless machines. This paper will focus on these challenges to be able to use these machines in such applications. In terms of replacing hydraulic systems with electromechanical systems, steering system is leading the way in automobiles. Currently, steering systems using Electro-hydraulically assisted systems and Electrically assisted (Electromechanical) systems are in the market. Though the Electrically assisted power steering has several advantages over other systems, certain performance and cost challenges delayed the penetration of such systems in to the market.

A Study on Discrete Continuity of Information System, Knowledge System, and e-Business System

  • Choi, Jae Young
    • Journal of Korea Society of Digital Industry and Information Management
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    • 제6권3호
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    • pp.203-209
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    • 2010
  • Since information systems are pervasive in the business and non-business areas, the issue of extending researches on information systems to knowledge systems and e-business systems is one of the most profitable topics of researches. We propose a historical, discontinuous changes introducing ambiguity in explaining and interpreting innovative nature of three paradigms of systems: information systems, knowledge systems, and e-business systems. Resorting to the historical perspective in developing ideas into meaningful themes, we proposed a discrete continuity in interpreting changes of paradigms of systems. Discrete continuity may be explained by ambiguously-shared meaningful perspectives applied to different paradigms of systems and interpretive elements of each system. The discrete continuity has been adopted to make ambiguity utilized have instrumental contribution in researches. The engrafted ambiguity in systems design, development, and use could have enduring instrumental value in interpreting the types or variants of systems in each paradigm of systems.

A Systems Engineering Process Refinement : Focused on Technical Process (시스템 엔지니어링 공통 프로세스 개선 연구 : 기술 프로세스를 중심으로)

  • Lee, Taekyong;Lee, Joong-Yoon
    • Journal of the Korean Society of Systems Engineering
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    • 제13권1호
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    • pp.41-50
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    • 2017
  • Systems engineering is being applied to various fields of industry such as national defense, aerospace, transportation, railway, and information technology industries. But in Korea, systems engineering has been selectively applied to government-driven projects such as space rocket development projects and unmanned flight development projects. And systems engineering processes introduced from international systems engineering standards has been directly applied to those projects. Unfortunately, this application method is not recommended as it requires highly experienced systems engineers. From our previous paper, we have proposed that domain specific engineering standards should be developed to be used as references for development of organizational engineering guide, so that more successful engineering performances can be achieved. And in this paper we have proposed a refinement of systems engineering processes from international systems engineering standards as they are bases of domain specific engineering standards.