• Title/Summary/Keyword: cluster tool

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From Specialisation to Diversification in Science and Technology Parks

  • Hassink, Robert;Hu, Xiaohui
    • World Technopolis Review
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    • v.1 no.1
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    • pp.6-15
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    • 2012
  • Science and technology parks have been popular among policy-makers at several spatial levels to promote innovation and economic growth of certain localities. However, this mainly property-led policy tool has been criticised for two reasons. First, it often failed to successfully support regional networking and technology transfer to regional firms. Only unplanned science and technology parks, such as Silicon Valley, seem to have been successfully fostering regional networking and technology transfer which has led, in turn, to the development of competitive innovative clusters. Secondly, it has too often bet on the same horses and become too specialised in the same fields, such as in micro-electronics or in biotechnology. This specialisation has been theoretically supported by the cluster concept. It has led to both a zero sum game of competition between locations as well as potentially negative path dependence and lock-ins. This paper suggests increasingly supporting diversification in science and technology parks by bringing together hitherto unconnected technologies. Several recently discussed concepts could be used to support diversification, such as related variety (Frenken et al. 2007), regional branching (Boschma and Frenken 2011), regional innovation platforms (Harmaakorpi et al. 2011) and transversality (Cooke 2011).

Development of Performance Evaluation Protocols for Physicians in a University Hospital (한 대학병원의 진료과별 업무성과 평가 도구 개발 과정)

  • Kim, Chang-Yup;Kim, Sunmean
    • Quality Improvement in Health Care
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    • v.5 no.2
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    • pp.296-310
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    • 1998
  • Background : Performance evaluation of medical care providers has become more important than before in Korea. Especially in university hospitals, job contents of medical staffs are so complicated that evaluation is not easily performed. In addition, in order that the feedback of evaluation be successful, acceptance of staffs to be evaluated is essential. This study is aimed at the development of items for evaluation and weighting of each item in one university hospital, and clustering departments by different weight given by medical staffs. Methods : Through resource group meeting. performance items were listed up by categories of education, research, medical services, and other activities in and out of the hospital. For each item, all the medical staffs were asked how important they thought, compared with publishing one original article. By factor analysis, the items in each category were grouped into a few subgroups. In turn, cluster analysis was done for the purpose of grouping departments by priority the medical staffs gave. Results and Conclusion : Among five major categories, medical staffs regard education, research, and medical services more important than other activities in and out of the hospital. Five categories consisted of two or three components. Departments in hospital were grouped into three. However, characteristics of each group was not clearly delineated. This result suggests that more comprehensive tool should be developed and applied in the process of performance evaluation in university hospitals.

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MDP-Based Stepwise Network Reconfiguration Scheme for Dynamic WDM Network (동적 WDM네트워크를 위한 MDP기반의 단계적 망 재구성 기법)

  • Park, Byoung-Seob
    • The Journal of the Korea Contents Association
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    • v.8 no.1
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    • pp.160-168
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    • 2008
  • We completed a new cluster system based on WDM by proposing virtual topology reconfiguration schemes. The key idea of the proposed scheme Is to construct a set with the longest chains of requests of connecting nodes which need to be assigned a wavelength. All the sets have no common factor, that is, there is no duplicated link among the requests of connecting. After making the set satisfying this condition, we could assign a wavelength to per corresponding set. We could reconfigure a virtual topology with this scheme collectively. we compared our scheme to existing approaches by the OWns simulation tool. As the results, we gained improved performances, reducing 10% of blocking rate and improving 30% of ADM utilization in terms of the blocking probability and the ADM utilization.

An Experimental Study of Cocitation Analysis on Web Information (웹 정보원의 동시인용분석에 관한 실험적 연구)

  • 정동열;최윤미
    • Journal of the Korean Society for information Management
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    • v.16 no.2
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    • pp.7-26
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    • 1999
  • This experimental study examines informetric analysis of World Wide Web based upon cocitation analysis of Web pages and features of Web resources in the field of communication studies. Cocitation analysis is basically performed to examine the intellectual structure of the communication studies in reflecting link count on the Web. The selected Web resources in the field are mapped in two dimensions based upon the similarities of cocitation frequency, correlation matrix, mutidimensional scale and cluster analysis. Cocitation analysis methods using organizational homepage, personal homepage, or Web index, to Web produced clustering of Web resources that had topical similarities. So far, although informetric analysis of Web resources is in the preliminary stage, it shows that Web can be a new tool for indicating the intellectual structure of a specific research field. In addition, this study analyzes characteristics of printing resources and Web resources, and differences of research methods in applying cocitation analysis.

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Poly-Si Thin Film and Solar Cells by VHF-PECVD (VHF-PECVD를 이용한 다결정 실리콘 박막 증착 및 태양전지 제조)

  • Lee, J.C.;Chung, Y.S.;Kim, S.K.;Youn, K.H.;Park, I.J.;Song, J.S.;Kwon, S.W.;Lim, K.S.
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2003.07b
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    • pp.995-998
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    • 2003
  • This paper presents the deposition of poly-Si thin-film and fabrication of a solar cell by VHF-PECVD method. The poly-Si thin films. and pin-type solar cells are fabricated using multi-chamber cluster tool system. A 7.4% conversion efficiency was achieved from poly-Si thin film solar cells with total thickness less than $5{\mu}m$. The physical characteristic was measured by Raman spectroscopy, solar cell characteristic was measured under AM1.5 illumination.

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Market Segmentation and Satisfaction according to the Motives of Food Festival Attendants - Focusing on the Case of Seoul Food Festival - (푸드 페스티발 참가자의 동기에 따른 시장세분화 및 만족의 차이 - 서울푸드페스티발을 중심으로 -)

  • Kim, Ju-Yeon;Lee, Hyun-Jong
    • Culinary science and hospitality research
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    • v.14 no.4
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    • pp.469-483
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    • 2008
  • The motives of festival attendance have been used as a valuable marketing tool for promotion and understanding segment characteristics. This study attempted to segment the food festival market based on delineated motives and find the difference of characteristics and satisfaction among the segments. The study also explored the influence of motivation factors on satisfaction. The results are as follows : (1) Derived factors of the motivation of food festival attendance were 'food', 'information', 'education', 'cultural events', and 'experience'. (2) A cluster analysis identified two segments for five motivation factors. Two segments named 'utilitarian motivation group' and 'hedonic motivation group' were found to be different according to age, occupation, income, company, information source. (3) Two groups show the difference on satisfaction about festival programs. Utilitarian motivation group was more satisfied with 'holiday food performance' and 'food performance', whereas hedonic motivation group presented more satisfaction with 'cocktail show'. (4) Three(cultural events, food and information) out of five motivation factors had significant influence on satisfaction.

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Use of Smokeless Tobacco among Male Students of Zahedan Universities in Iran: a Cross Sectional Study

  • Honarmand, Marieh;Farhadmollashahi, Leila;Bekyghasemi, Mahmoud
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.11
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    • pp.6385-6388
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    • 2013
  • Background: Smokeless tobacco consumption is one of the causes of oral cancer. The aim of this study was to determine the prevalence of smokeless tobacco consumption among male students of Zahedan universities and associated factors in 2012. Materials and Methods: In this cross-sectional study, 431 students were selected from the universities of Zahedan using multi-stage random cluster sampling. The data collection tool was a questionnaire including questions about demographic information, history of smokeless tobacco consumption, and awareness of smokeless tobacco hazards. Data were analyzed by SPSS19 using Chi-square test and multinomial logistic regression, with p<0.05 considered significant. Results: At the time of conducting this study, 102 students (23.7%) had already consumed smokeless tobacco and 49 students (11.4%) were current users (consuming at least once in 30 days before the study). There was a significant relationship between history of smokeless tobacco consumption, university/college, place of living, mean GPA, and mother's education level (p<0.05). Also there was a significant association between knowledge and prevalence of smokeless tobacco use (p<0.001). Conclusions: There is a relatively high prevalence of smokeless tobacco consumption among the male students of universities of Zahedan, which shows the need to emphasize the provision and implementation of prevention programs in universities.

The Formation of the Machine Tool Cluster and The Accumlation of Technological Capability of the Numerical Controller Industry in Korea (클러스터 형성을 위한 지식 집약적 IT 부품 연구개발정책의 Dilemma : 공작기계제어 컴퓨터 사례)

  • 임채성
    • Proceedings of the Technology Innovation Conference
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    • 2000.06a
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    • pp.47-64
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    • 2000
  • This paper analyses characteristics of the numerical controller industry in market formation and the Flow of information between users and producers and the characteristic of knowledge base of the industry and discusses the difficulties derived, from the characteristics, in accumulation of technological capability In market formation betweenusers and producers, the multi-layered market is not favorable to domestic producers in that lower end market is not large enough to provide cardle market to them which produce inferior quality and lower price than importer products. The credibility of the permance of a product is difficult to prove until a critical mass of products are sold. Therefore gaining market share is deterred by unproven credibility of the performance of the product. The flow of information between users and producers is limited. The flow of information on users environment through mass market to producers is essential for improving credibility of a product. The nature of knowledge base is tacit and the means of knowledge transmission is limited. Technological licensing and reverse engineering, Which have been conventional industry. These characteristics provide conditions of vicious circle in accumulation of technological capability of the numerical controller industry. This paper argues that these characteristics of the industry challenges existing approach to R&D management and framework of science and technology policy.

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Visualization of Landscape Tree Forms Using Computer Graphic Techniques: Using the Plant Editing Module in AccuRender (컴퓨터 그래픽스를 활용한 조경수목 형상자료의 가시화 - AccuRender의 수목 모델링 모듈 활용을 중심으로 -)

  • 박시훈;조동범
    • Journal of the Korean Institute of Landscape Architecture
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    • v.27 no.4
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    • pp.143-150
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    • 1999
  • The purpose of this research is to find som ways to model tree forms more efficiently in reference with surveying structural data and handling parameters in plant Editor of AccuRender, the AutoCAD-based rendering software adopting the procedural plant modeling technique. In case of modelling a new tree, because it is efficient to modify an existing tree data as a template, we attempted to classify 81 species' data from existing plant library including conifers and deciduous tree. According to the qualitative characteristics and quantitative parameters of geometrical and branching structure, 8 types of tree form were classified with factor and cluster analysis. Some critical aspects found in the distributions of standardized scores of parameters in each type were discussed for explaining the tree forms intuitively. For adaptability of the resulted classification and typical parameters, 10 species of tree were measured and modelled, and proved to be very similar to the real structures of tree forms. CG or CAD-based plant modelling technique would be recommended not only as a presentation tool but for planting design, landscape simulation and assessment.

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A Detection Tool of Message Races in Parallel Programs for Linux Cluster Systems (리눅스 클러스터 시스템을 위한 병렬프로그램의 메시지경합 탐지 도구)

  • Park, S.;Kim, Y.;Park, M.;Kim, S.;Lee, S.;Jun, Y.
    • Proceedings of the Korea Information Processing Society Conference
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    • 2000.10a
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    • pp.645-648
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    • 2000
  • 병렬 오류인 메시지경합을 가진 메시지전달 프로그램은 비결정적인 수행결과를 보이므로, 이를 탐지하고 수정하는 것이 어렵다. 기존의 메시지경합 탐지 도구들은 메시지경합에 관련된 간접적인 정보를 제공하는 수준이며, 메시지경합의 원인을 자동으로 탐지하지 못한다. 그리고 탐지과정 중에 부가적인 메시지전달 작업이 발생하며, 대상 프로그램을 수정해야 하는 부담이 있다. 본 논문에서 제안된 탐지 도구는 리눅스 클러스터 시스템을 위한 병렬 프로그램의 메시지경합을 자동으로 탐지하여 직접적인 경합 정보를 제공한다. 그리고 탐지 엔진 부분을 리눅스 커널에 설치함으로써 경합 탐지를 위한 부가적인 메시지전달의 필요성을 제거하고, 대상 프로그램의 수정없이 경합을 탐지할 수 있는 투명성을 제공한다.

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