• 도로교통
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• s.81
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• pp.31-35
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• 2000

• Proceedings of the Korea Technology Innovation Society Conference
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• 2017.05a
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• pp.733-751
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• 2017

본 연구에서는 기술사업화 관련 1987년부터 2016년까지 국내 등재학술지에 발표된 198편의 논문을 선정하여 분석함으로써 관련 국내연구의 동향을 살펴보았다. 그 동안 축적된 국내 기술사업화연구의 시대별 흐름과 전체적인 경향을 살펴보고자 기술적분석(descriptive analysis)방법을 적용하여 연구영역, 연구방법, 연구주제, 연구대상에 대한 분석을 실시하였다. 연구시기별 분석을 통해 "기술이전촉진법" 제정 후 약 2년 후인 2002년부터 국내등재학술지에 기술사업화 연구논문 게재가 본격화되었고, 지난 2016년에는 2002년 대비 5배에 달하는 연구논문 증가세를 확인할 수 있었으며, 연구영역분석에서는 기술혁신 연구관련 4대 학회지(기술혁신학회지, 벤처창업연구, 기술혁신연구, 지식재산연구)의 연구논문이 전체의 40% 점유사실이 관찰되었으며, 분석대상논문들에 적용된 연구방법들을 살펴본 결과, 양적연구가 전체의 53%, 문헌연구 29%, 질적연구 11%, 혼합연구 8%의 순으로 나타났다. 연구대상별 연구동향은 기술수요기업을 대상으로 하는 연구가 전체의 33%, 정부의 정책 제도 및 시스템을 연구대상하는 연구가 29%를 점유하고 있다는 분석결과가 나왔으며, 연구주제의 동향분석과 관련해서는 '사업화 프로세스'를 주제로 연구한 논문이 전제의 28%, '기술사업화 요소'에 대한 연구가 전체의 23%를 차지함을 살표볼 수 있었다. 본 연구에서는 지난 30여년에 걸친 기술혁신정책들과 연계하여 그 동안 축적된 연구들을 분석하여 국내학계의 연구동향을 보다 넓은 시각에서 조망해보는 최초의 시도라는 점에서 우선적인 의의를 찾을 수 있으며, 기존 연구들을 체계적으로 분석하고 정리해 봄으로서, 그 결과로부터 향후 기술사업화 정책방향에 대한 시사점 제공과 향후 연구방향에 대한 실질적인 함의를 제공할 수 있는 기초자료로 활용될 수 있기를 기대해본다.

• Proceedings of the KIPE Conference
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• 2004.07a
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• pp.374-379
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• 2004

H-브릿지 멀티레벨 인버터는 여러 개의 단상 Power Cell을 직렬로 연결함으로써 저전압 전력용 반도체를 사용하여 고전압을 얻을 수 있고, 정현파에 가까운 출력전압 파형을 얻을 수 있는 멀티레벨 인버터 토폴로지이다. 본 토폴로지는 출력전압 레벨에 비례하여 Power Cell의 수가 증가하므로, 주제어기의 연산능력에 대한 부담증가와 신호선의 많아지는 단점이 있다. 따라서 Power Cell제어를 직접적인 PWM 신호가 아닌 통신을 사용함으로써 이러한 단점을 극복할수 있으며, 신뢰성 측면이나 보수/유지 측면에서도 유리하다. 본 논문은 산업현장에서 신뢰성을 인정받아 많이 사용되고 있는 직렬통신 방식의 일종인 CAN통신 인터럽터를 이용한 H-브릿지 멀티레벨 인버터 Power Cell의 PWM 동기화 및 위상 전이 방법에 관한 것이다. 제안된 방법의 주요 장점은 주제어기와 셀 제어기 사이에 직렬통신(CAN)을 사용함으로써 주제어기와 셀 제어기의 신호선의 단순화, 주제어기의 부담 감소, Power Cell의 모듈화, 셀 단위의 보호동작 용이, 확장성 향상 그리고 제어 신호 및 Power Cell의 신뢰성을 향상에 있다. 13레벨로 구성된 H-브릿지 멀티레벨 인버터 시험을 통해 제안된 방법의 타당성과 신뢰성을 입증하였다.

• The Journal of Korean Association of Computer Education
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• v.11 no.4
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• pp.71-83
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• 2008

The recent advances of the information technology have motivated lots of research efforts to develop new computer-aided teaching and learning methodologies on various computer science topics, such as data structures, operating system, computer networks, and computer architecture. However, there have been only few studies to educate the database subject although it is one of the most important topics in the computer science. Specifically, among the various issues in the database subject, a learner often suffers to understand the mechanism of the concurrency control and recovery of database transaction in the database because it highly interacts with other functions in the database. Obviously, an intelligent visualization tool can help a learner to understand the process of the concurrency control and the recovery of database transaction. The purpose of this study is to develop an efficient visualization tool which can help users understand the two phase locking protocol (2PLP)-based concurrency control. Specifically, this visualization tool is designed to encourage a users' participation and raise their interest by visualizing the process of transactions and allowing users to specify and manipulate their own transactions.

• Journal of the Korean Society for Library and Information Science
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• v.43 no.1
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• pp.333-361
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• 2009

Aims of subject specialist librarian's education is an improvement of their professionalism which could reinforce librarians' ability to achieve their speciality. The curriculum should be competency based one which could gain knowledge and skills to accomplish subject librarian services. The study aims to suggest competency based curriculum that is needed for specialist librarian's work. The study proposes six educational courses and fifteen subjects. Six courses are as followings: resource development, information services, library marketing, user education, subject research, and library administration.

• Journal of the Korean Society for Library and Information Science
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• v.31 no.4
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• pp.35-52
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• 1997

At present we have access to a plethora of university journals. The purpose of this study is to estimate the use of these university Journals in research fields by focussing on the level of usage in each discipline in addition to the level of usage of each university journal in linguistics. The results indicate the level of academic use of each Journal in lingustics as well as of usage levels between disciplines. From these results, the follow-up measure is requested for differentiation and specialization of university journals.

• The Journal of the Korea Contents Association
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• v.20 no.4
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• pp.530-539
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• 2020

In this paper, we implement a digital content that visualizes the ten kings of Hell kings appearing in Buddhist myths according to their keyword. The ten kings of Hell are called ShiWang, and can be found in ordinary temples as tangible cultural Heritage such as paintings of the Buddha. ShiWang is a great king who controls the underworld and has been passed on in various forms in shamanism and Buddhist culture. We analyze the ShiWang, who appears in ancient literature, analyzes its features by hell and categorizes keywords. When the public chooses keywords of interest from implemented digital content, digital content represents the ShiWang and Hell image and descriptions associated with the selected keywords. Applications of the digital content are as follows; development of games and cultural characters, digital storytelling using traditional culture, teaching Buddhist culture and doctrines, games, etc.

• Journal of the Korean Society for Library and Information Science
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• v.42 no.1
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• pp.253-272
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• 2008

While relevant studies emphasize the significance of user-oriented indexing associated with fulfilling both topical and non-topical needs of individual users, a great number of operational retrieval systems supports only those searches related to subject attributes of the users' needs. Retrieval systems for presidential image collections are not an exception for such a restriction. Upon this reality. this study seeks diversification of access points for presidential images based on descriptors directly presented by potential user groups. Improvements of subject-based descriptors are suggested based on those descriptors identified.

• Journal of Information Management
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• v.39 no.4
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• pp.121-154
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• 2008

In this paper, a ontology-based keyword structuring method is proposed to represent the knowledge structure of scholarly documents and to make inferences from the semantic relationships holding among them. The characteristics of thesaurus as a knowledge organization system(KOS) for subject heading is critically reviewed from the information retrieval point of view. The domain concepts are identified and classified by analysis of the information activities occurring in a general research process based on scholarly sensemaking model. The ontological structure of keyword set is defined in terms of the semantic relationship of the canonical concepts which constitute scholarly documents such as journal articles. As a result, each ontologically structured keyword set of a document represents the knowledge structure of the corresponding document as semantic index. By means of the axioms and inference rules defined for information needs, users can efficiently explore the scholarly communication network built on the semantic relationship among documents in an analytic way based on the scholarly sensemaking model in oder to efficiently retrieve the relevant information for problem solving.

• Journal of the Korean Society for information Management
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• v.40 no.4
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• pp.259-277
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• 2023

This study aims to identify the academic landscape of the field of Library and Information Science by analyzing the research areas of the four major domestic journals using structural topic modeling and network analysis. The results show that each journal focuses on different research areas. The Journal of the Korean Society for Library and Information Science covers the most comprehensive range of research areas in the field, while the Journal of the Korean Biblia Society for Library and Information Science shows a similar research trend but with a higher preference for research areas related to library management and library programs. The Journal of Korean Library and Information Science Society deals more with topics related to school libraries and reading education and the Journal of the Korean Society for Information Management focuses more on information technology and information science. This study is able to provide valuable foundational data for researchers in submitting their papers and for the topical specialization and diversification of the journals in the field of Library and Information Science.