• Title/Summary/Keyword: knowledge diffusion

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Numerical Analysis of Heat and Mass Transfet in the Absorbent By Surfactant Addition (계면활성제첨가에 의한 흡수용액내의 열 및 물질이동해석)

  • ;;Heo Boo, Back Mok
    • Journal of the Korean Society of Safety
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    • v.6 no.3
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    • pp.40-49
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    • 1991
  • To better understand the phenomena inside an absorber, where heat and mass transfer coexist, this study selected the most baslc absorption model from in whifh water vapor is absorbed on the surface of a stationary lithium bromide absurbent solution. The purpose of this study is to obtain basic knowledge of heat and mass transfer processes as affected by Marangoni convection induced by addition of surfactant. We apply a non-flowing bulk absorption model and assume that dropwise surfactant is fixed on the absorbent surface. Four governing equation-continuity, laminar monentum, energy and diffusion are solved numerically to obtain temperature and concentraion distributions during steam absorption with Marangonl convection.. In conclusion, Sh and Nu genrally increase at the initial absorption stage.

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Library and Information Science versus Commmication studies: A Comparison of Theoretical and Research Perspectives (문헌 정보학과 커뮤니케이션 연구의 학문적 연관성 고찰)

  • 정동열;권수영
    • Journal of the Korean Society for information Management
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    • v.8 no.2
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    • pp.125-138
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    • 1991
  • This paper focuses on issues in the relat~onshlp of library and information science with a closely allied chsciphne, communication studies. It is obvious that researchers in both fields study topics similar in focus, such as information theory, information-seeking behavior includ~ng user studies, systems theory, invisible colleges, the diffusion of knowledge, human interaction with information /communication technologies and the information society. In order to discuss the comparison of theoretical

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Policy on Promoting Venture Business based on Patent and Technology in Metro Taejon and Chungcheong Area (대전 .충청지역 특허기술기반 벤처산업의 육성방안)

  • 이영덕
    • Journal of Korea Technology Innovation Society
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    • v.2 no.2
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    • pp.309-325
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    • 1999
  • If we want to overcome the current IMF-guarded economic situations as early as possible and to change the present industry structure to the new knowledge-based structure, it is a great necessity to increase the capability of technology innovation as a key factor of the international competitiveness, and to establish the infrastructure of venture business for increasing utilization of technologly and patent. Even though there has been a great increase in application and enrollment of the Industrial Property Rights (i.e. IPRs) including patent recently, the number of unused IPRs are increasing progressively every year (for example, the ratio of unused patent is about 60% in 1997), and illegal use of patent and dependance on the foreign patent are increasing sharply. This paper will suggest policy on nurturing venture business for increasing utilization of the unused IPRs, including technology transaction strategy and link strategy of the high-tech industries between metro Taejon and Chungcheong Area.

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A study on the convergence of library and information science and communication studies (문헌정보학과 커뮤니케이션연구의 집중(convergence)에 관한 고찰)

  • 윤혜영
    • Journal of Korean Library and Information Science Society
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    • v.20
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    • pp.471-495
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    • 1993
  • This paper focuses on issues in the convergence of library and information science and communication studies. Common research topics in both fields include scholarly communication, knowledge gaps, invisible colleges, diffusion of innovations, human interaction with communication technologies, information-seeking behavior, information theory, and the information society. To consider these two disciplines in this broader context, this paper compares these two discipline's paradigms, suggests four models of convergence, and traces bibliometric studies performed. This study may be of use to those studying scholarly communication or bibliometrics, to faculty constructing curricula in either of the disciplines, to communication and information science scholars seeking new areas of research, and to collection development librarians in drawing the boundaries of these disciplines.

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Optimizing Product Design in Cyberspace through Knowledge Mining Agents

  • Kim, Steven H.;Park, Hwa-Gyoo;Chae, Bong-Sug;Shin, Sung-Woo;Lee, Tae-Jong
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 1998.10a
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    • pp.56-59
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    • 1998
  • The rapid diffusion of the Internet and the World Wide Web is facilitating greater interaction - and potential opportunities for customization - between vendors and customers. For instance, virtual reality and multimedia technologies allow consumers to envision their designed products. The increasing pace of the business environment highlights the need to deploy intelligent systems in all stages of product design and production planning. This paper deals with a system to generate an appropriate product design by adapting customer preferences and constraints using the case based reasoning methodology. Moreover, intelligent agents are integrated with virtual reality technology to provide a friendly user interface.

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New Paradigm for Agricultural Extention Service in the 21st-Century (21세기 농촌지도사업의 새 패러다임)

  • Kim, Jae-Ho
    • Journal of Agricultural Extension & Community Development
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    • v.6 no.2
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    • pp.3-15
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    • 1999
  • The objectives of this study were 1) to review the developmental process of agricultural extension services since 1960 in Korea, and 2) to suggest new paradigm of agricultural extension education in the 21st century. The study suggested major objectives of agricultural extension service in Korea should be focused on; 1) Agricultural technology transfer for environmentally friendly food production, 2) Diffusion of energy saving and safe farming technologies and upbringing export oriented agriculture, 3) Education and training of capable farmers for competitive world, and 4) Technological support for home improvement considering harmony of human, environment and life. To achieve major objectives of extension services the following strategies should be employed; 1) National administration and financing. 2) Farmer oriented services should be performed since extension education is originally two-way communication process to help farmers in better decision making, 3) Human resource development for extension educators to meet increasing demands of target population, and policy measures should be implemented to increase morale of extension educators, and 4) Role of public extension should be strengthened to meet needs of majority farmers and public interests in the knowledge based information society in the 21st century.

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A Case of Metronidazole-Induced Encephalopathy: Atypical Involvement of the Brain on MRI

  • Hwang, Eunjin;Chang, Suk-Ki;Lee, Seun-Ah;Choi, Jung-Ah
    • Investigative Magnetic Resonance Imaging
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    • v.22 no.3
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    • pp.200-203
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    • 2018
  • Metronidazole is an antimicrobial agent widely used for the treatment of anaerobic infection or antibiotics-associated diarrhea. It is generally thought to be safe, but can induce reversible toxic encephalopathy in the case of excessive or cumulative over-dose. Metronidazole-induced encephalopathy generally demonstrates the characteristic features of typical lesion location and bilaterality on magnetic resonance imaging (MRI). We report a case of metronidazole-induced encephalopathy with the involvement of asymmetric white matter. To our knowledge, only a few cases have been reported with respect to white matter lesion characteristics on MRI with diffusion-weighted images.

An Assessment and Policy Implication of Information Technology Convergence Programs in Korean Public Service Area (공공부문 IT신기술 적용사업의 추진현황 평가와 정책적 시사점)

  • Kim, SungHyun
    • Journal of Information Technology Services
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    • v.11 no.sup
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    • pp.1-16
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    • 2012
  • Information technology is a useful strategic weapon that can create competitive advantage and new business opportunity by applying it in the organization' value chain. IT convergence can be understood as an attempt of industrial level IT adoption to facilitate the innovation of the industry and the birth of a new industry. This study provides the comprehensive review of the Korean government' three IT assimilation programs, ubiquitous technology diffusion program of the Ministry of Knowledge Economy, u-service program of the Ministry of Public Administration and Security, and u-Defence cooperation program of the Department of Defense. The analysis is done through the interpretation of the existing literature and the logic model. The result proposes inter-agency cooperation and building of new technology road-map in the planning stage, flexible management in the execution phase, and failure tolerant evaluation system. The proposal for developing competencies and institutional foundations for IT convergence also presented.

Polarization Behavior of Li4Ti5O12 Negative Electrode for Lithiumion Batteries

  • Ryu, Ji-Heon
    • Journal of Electrochemical Science and Technology
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    • v.2 no.3
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    • pp.136-142
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    • 2011
  • $Li_4Ti_5O_{12}$ is prepared through a solid-state reaction between $Li_2CO_3$ and anatase $TiO_2$ for applications in lithium-ion batteries. The rate capability is measured and the electrode polarization is analyzed through the galvanostatic intermittent titration technique (GITT). The rate characteristics and electrode polarization are highly sensitive to the amount of carbon loading. Polarization of the $Li_4Ti_5O_{12}$ electrode continuously increases as the reaction proceeds in both the charge and discharge processes. This relation indicates that both electron conduction and lithium diffusion are significant factors in the polarization of the electrode. The transition metal (Cu, Ni, Fe) ion added during the synthesis of $Li_4Ti_5O_{12}$ for improving the electrical conductivity also greatly enhances the rate capability.

A Study on Conquest Plans of the Barrier and Resistance in Innovation Management (혁신관리에 있어서 장애와 저항의 극복방안)

  • Lee, Seung-Hee;Noh, Kyoo-Sung
    • Journal of Digital Convergence
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    • v.3 no.1
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    • pp.9-25
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    • 2005
  • The purpose of this study is to explore conquest plans of the barrier and resistance in innovation management. In addition, this study is to describe the model of innovation resistance that reflects adoption process stages and identify the factors that drive the resistance of consumers and the barriers. Whenever organizations try to plan and implement some kind of innovation in organizations, they confront the resistance and barriers in many ways. By understanding innovation resistance and barrier, organizations can not only design better innovations but can develop strategies to reduce resistance and conquer the barriers. Thus they accelerate innovation. Also, these results indicate that people resist innovation strongly when it betrays their value, needs and beliefs or when they felt the pressure on self-conviction and mental risk, loss, and lack of knowledge. Understanding the factors that drive the innovation resistance and barrier has important implications for both theoretical development and managerial action.

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