• 제목/요약/키워드: complex system products

검색결과 322건 처리시간 0.024초

우리 나라 복합시스템 제품의 기술혁신 특성에 대한 탐색적 연구 - 통신시스템 사례를 중심으로 - (An Exploratory Study on the Characteristics of Complex System Product Innovation in Korea: Telecommunication Industry Case)

  • 송위진;황혜란;조황희
    • 기술혁신학회지
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    • 제2권2호
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    • pp.275-289
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    • 1999
  • This study aims at investigating the stylized facts of the complex system products innovation in Korea. It reviewed the preceeding studies on the innovation patterns of complex system products and selected the issues to be examined in investigating Korean case. In addition, the stylized facts of innovation patterns of Korean complex system products were suggested. The peculiar characteristics of Korean cases are as follows: Korea has succeeded in integrating foreign technologies and components into commercial complex system products and in substituting the foreign system products in the domestic market. However, it faces a great difficulty in upgrading the products to the next generation. It lacks capabilities which facilitate the evolution of system products competing in the world market.

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Autoxidation of Cycloalkenes by the System “Molecular Oxygen-bis(acetylacetonato) Cobalt (II) Complex-butyraldehyde”

  • Fang, Zhao;Tang, Rui-Ren;Zhang, Rui-Rong;Huang, Ke-long
    • Bulletin of the Korean Chemical Society
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    • 제30권10호
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    • pp.2208-2212
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    • 2009
  • Oxidation of cycloalkenes with $O_2$ promoted by heterogeneous bis(acetylacetonato) cobalt (II) complex catalyst which can be recycled has been performed under mild conditions. It was found that $\beta$-ionone, cyclohexene, 1-methylcyclohexene, and $\alpha$-ionone were efficiently oxidized with $O_2$ in the presence of Co (II) complex and butyraldehyde at $55\;{^{\circ}C}$. A simple treatment of the resulting products led to epoxides as predominant products and a small amounts of allylic oxides, the chemoselectivity for the former being 82.1 - 90.8% with a 70.6 - 98.6% substrate conversion. On the other hand, oxidation of 1-phenylcyclohexene, 1-cyclohex-1-enylethan-1-one, $\alpha$-pinene, and $\beta$-pinene gave allylic oxides as major products.

농공단지 활성화를 통한 서천군 지역발전방안 (Regional development through vitalization of agro-industrial complex in seocheongun)

  • 양희석;김태철
    • 농업과학연구
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    • 제39권2호
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    • pp.263-270
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    • 2012
  • The vitalization of Agro-industrial complex could be an alternative to enhance farmers off-farm income and overcome FTA's impacts on the import of agricultural products. However, it is evaluated the governmental policy on the Agro-industrial complex has not been successfully done as expected. The Agro-industrial complex started to be composed in 1984 and the 427 Agro-industrial complex have been composed nationwide by 2011. Meanwhile, three Agro-industrial complex where 61 factories are running have been composed and two Agro-industrial complex are being under construction in Seocheongun as of 2011. It is investigated that there are constraints in the government supporting systems for Agro-industrial complex. They are; Aged and poor infrastructure facilities, Weak marketing competition, Scattered supporting agencies, and Poor loan system, etc. In this respect, the policy of supporting system was suggested and recommended to vitalize Agro-industrial complex in the study. They are; Better loan system, Improving aged facilities, Marketing support, Assisting technology, Suppling labor power, and Forming factory-network, etc.

지역사회 공동체 형성을 위한 농업교류에 관한 연구 - 개성공단 농산물 계약재배를 중심으로 - (A Study on Agricultural Interchange for Forming Community - focus on agricultural products contracting cultivation in Kaesong industrial complex -)

  • 최락인
    • 한국컴퓨터정보학회논문지
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    • 제12권5호
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    • pp.179-190
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    • 2007
  • 본 연구는 개성공단에 진출한 우리 인력과 북한주민들에게 우리 농산물을 제공할 것인가에 대한 대응방안을 모색하고 향후 북한지역과의 지역사회 공동체 형성을 위한 농업교류에 대한 정책적 방안을 제시하고자 하는데 목적이 있다. 지역사회 공동체 형성을 위한 농산물 계약재배를 추진하기 위해서는 첫째, 북한 체제를 이해해야 한다. 둘째, 계약재배 시 제한품목인 경우 북한과의 계약이전에 통일부와 품목, 생산량 등을 협의하여 추진해야 한다. 셋째 구체적으로 계약에 임해야 한다. 마지막으로 정부의 법적 제도적 정비와 정책적 지원이 계속 내실 있게 추진해야 하며 남북간 지역 공동체 형성에 있어 의회, 기업, 민간단체, 학계 등의 활동을 적극적으로 지원하고 국제적인 지원을 유도하는 데도 적극 나서야 한다.

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DEVELOPMENT OF INFORMATION FLOW RETRIEVAL SYSTEM FOR LARGE-SCALE AND COMPLEX CONSTRUCTION PROJECTS

  • Jinho Shin;Hyun-soo Lee;Moonseo Park;Kwonsik Song
    • 국제학술발표논문집
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    • The 5th International Conference on Construction Engineering and Project Management
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    • pp.648-651
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    • 2013
  • The information generated in large-scale and complex construction projects are transferred continuously and transformed into project products on the long span life cycle. Therefore, information flow management is related with the success of project directly. However, certain characteristics of large-scale and complex construction projects make the solving the problem more difficultly. Although several information retrieval systems support the information management system, it is not suitable to grasp information flows. Hence, we developed an information retrieval system specialized with the information flow based on a preceding research. The system consists of a relation-based database and the process information transferring relation inference application module. The system enables project managers to manage the entire project process more efficiently and each project member to work their own task being served the information flow retrieval results.

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Effect of NaCl/Monosodium Glutamate (MSG) Mixture on the Sensorial Properties and Quality Characteristics of Model Meat Products

  • Chun, Ji-Yeon;Kim, Byong-Soo;Lee, Jung-Gyu;Cho, Hyung-Yong;Min, Sang-Gi;Choi, Mi-Jung
    • 한국축산식품학회지
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    • 제34권5호
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    • pp.576-581
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    • 2014
  • Sodium chloride is an important ingredient added to most of foods which contributes to flavor enhancement and food preservation but excess intake of sodium chloride may also cause various diseases such as heart diseases, osteoporosis and so on. Therefore, this study was carried out to investigate the effect of monosodium glutamate (MSG) as a salty flavor enhancer on the quality and sensorial properties of the NaCl/MSG complex and actual food system. For characterizing the spray-dried NaCl/MSG complex, surface dimension, morphology, rheology, and saltiness intensity were estimated by increasing MSG (0-2.0%) levels at a fixed NaCl concentration (2.0%). MSG levels had no effect of the characteristics of the NaCl/MSG complex, although the addition of MSG increased the surface dimension of the NaCl/MSG complex significantly (p<0.05). Furthermore, the effect of MSG on enhancing the salty flavor was not observed in the solution of the NaCl/MSG complex. In the case of an actual food system, model meat products (pork patties) were prepared by replacing NaCl with MSG. MSG enhanced the salty flavor, thereby increasing overall acceptability of pork patties. Replacement of NaCl with MSG (<1.0%) did not result in negative sensorial properties of pork patties, although quality deterioration such as high cooking loss was found. Nevertheless, MSG had a potential application in meat product formulation as a salty flavor enhancer or a partial NaCl replacer when meat products were supplemented with binding agents.

Developing the Optimized Method of Reliability-Growth Target Setting for Complex and Repairable Products from Business View

  • So, Young-Kug;Jeon, Young-Rok;Ryu, Byeong-Jin
    • 한국신뢰성학회지:신뢰성응용연구
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    • 제15권4호
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    • pp.248-255
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    • 2015
  • Purpose : The purpose of this research is to develop the optimized method and process in the reliability-growth target setting, especially for complex and repairable system (or products) such as vehicle and airplane, construction equipment. Method : A reliability-growth test plan specifies a scenario to achieve the planned reliability value (or reliability target). The major elements in test planning are reliability-growth starting time and reliability level at that time, reliability-growth rate and reliability-growth target. All of them except a reliability target can be referred to the previous development data and reference researches. The reliability target level is directly influencing to test period (or time) which is related to test and warranty cost together. There are a few researches about the reliability target setting method and but showing the limitations to consider the views of engineering, business and customer together. There is no research how to handle the target setting process in detail. Result : We develop the optimized method and systematic process in reliability target setting with considering such views. This research also establish the new concept as production capability which means company (or supplier) capability to product its products. Conclusion : In this research result, we apply the new method to a few projects and can set the reasonable test planning. The developing results is showing the good balance between the developing cost and warranty cost at market.

온라인 전력계통 고장 진단 시스템 개발 (On Line Fault Diagnosis in the Large Power System)

  • 김정년;백영식;서규석
    • 대한전기학회논문지:전력기술부문A
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    • 제54권5호
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    • pp.205-211
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    • 2005
  • Recently, power system is getting larger and more complex. When the complex power system has a problem, it is very difficult even for the experts to find out where the problem is and to make a timely decision by operators. There have been many studies on these problems but the results are not good enough for applying to real power system. Therefore, power system operators always had to judge the exact state of power system and be preparative for the problems that can occur later. We developed new methods that can be applied to complex power system by dividing the system into small modules. By using 'module', we can combine small modules together to make complex power systems and the knowledge base that is applied to fault diagnosis system. As a result, compared to previously developed diagnosis products, operation time is shortened and the knowledge base is become simpler and clearer, which made online usage capable. This system can be used as a complementary measurement that helps the operator from making any mistakes.

계통 내 온라인 고장 진단 시스템 개발 (ON-LINE FAULT DIAGNOSIS IN THE LARGE POWER SYSTEM)

  • 서규석;백영식;김정년
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2004년도 추계학술대회 논문집 전력기술부문
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    • pp.122-124
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    • 2004
  • Recently, power system is getting larger and more complex. When the complex power system has a problem, it is very difficult even for the experts to find out where the problem is and to make a timely decision by operators. There have been many studies on these problems but the results are not good enough for applying to real power system. Therefore power system operators always had to judge the exact state of power system and had to be preparative for the problems that can occur later. We developed new methods that can be applied to complex power system by dividing the system into small modules. By using 'module' we can combine small modules together to make complex power systems and the knowledge base that is applied to fault diagnosis system. As a result, compared to previously developed diagnosis products, operational time has shortened, and the knowledge base becomes simpler and clearer, which made online usage capable. This system can be used as a complementary measure that helps the operator from making any mistakes.

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공공연구기관에서의 복합제품개발을 위한 기술혁신시스템 (The Technology Innovation System for Complex System Product Development of Public Research Institutes)

  • 조황희
    • 기술혁신학회지
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    • 제1권3호
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    • pp.313-325
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    • 1998
  • Government-Supported Research Institutes(GSRI) have done complex product(CP) development with national needs. The products to be developed have very limited demand. The most important things at CP development are technology innovation through knowledge creation and acquisition. Then, this paper suggests the technology innovation system for CP development. In CP development like satellite, government must do strategic management at national level and technology management at program level. Two managements are tools to achieve the strategic goals. The key points in CP are integration and interface among subsystems and person. From these factors and innovation system, R&D planning and practice are based on sharing and creation of knowledge. CP development projects ought to overlap and parallel for sustainable acquisition and creation of knowledge.

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