• 한국IT서비스학회지
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• 제7권2호
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• pp.181-195
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• 2008

The rapid growth of mobile communication technology has provided the expansion of mobile internet services, particularly mobile realtime transaction takes much weight among mobile fields. There is an increasing demand for various mobile applications to process transactions in a mobile computing fields. Thus, During transmission in wireless networks a base station failure inevitably causes data loss of the base station buffer. It is required to compensate the loss for communication. The existing methods for a base station failure are not adequate because they all suffer from too much overhead and resolve only the link failure. In this paper, we study an efficient recovry systems for a mobile DBMS. We propose SLL (Segment Log List) that enables the mobile host to compensate data loss efficiently in the case of base station failure. In SLL, a base station deliveries an output information of data cells to a mobile host. when a base station fails, the mobile host can retransmit just next data cells. We also prove the efficiency of new method.

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2004년도 추계 학술발표대회 논문집
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• pp.20-21
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• 2004

• Journal of information and communication convergence engineering
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• 제8권1호
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• pp.89-94
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• 2010

The most important of rule-base system is the knowledge base that determines the power of rule-base system. The important form of this knowledge is how to descript kinds of rules. The Rule-Base System (RBS) has been using in many field that need reflect quickly change of business rules in management system. As far, when develop the Rule-Based System, we must make a rule engine with a general language. There are three disadvantage of in this developed method. First, while there are many data that must be processed in the system, the speed of processing data will become very slow so that we cannot accept it. Second, we cannot change the current system to make it adaptive to changes of business rules as quickly as possible. Third, large data make the rule engine become very complex. Therefore, in this paper, we propose the two important methods of raising efficiency of Rule-Base System. The first method refers to using the Relational database technology to process the rules of the Rule-Base System, the second method refers to a algorithm of according to Quine McCluskey formula compress the rows of rule table. Because the expressive languages of rule are still remaining many problems, we will introduce a new expressive language, which is Rule-Base Data Model short as RBDM in this paper.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1997년도 춘계학술대회 논문집
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• pp.677-682
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• 1997

Vibration diagnosis of steam turbine generator is essential for safe operation. For a fast few decades, several data base systems for diagnosis of steam turbine generators have been developed and proved useful. However, there still remains a problem in using data base systems such that they require an expert engineer who has a deep insight or knowledg into the system. Moreover,such data base systems can not give any information if the input is not completely fit with data base. This paper presents an effective method for vibration diagnosis of steam turbine generators using fuzzy inference. The proposed method includes also a strategy to overcome the drawback of data base system such that one cannot obtain any information when the input is insufficient or not exact. A computer program is written to realize the entire procedure for the diagnosis. Three realistic problems are dealt with to show the effectiveness of the proposed method.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2011년도 제44차 하계학술발표논문집 19권2호
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• pp.217-219
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• 2011

Smart Grid를 위해서 전기의 끊김없는 공급과 안전한 전기사용이 중요하다. Smart Grid에 사용되는 전기IT기기의 성능평가와 인증을 받기 위해서는 모듈 기준값, 모듈 성능값, 제품별 기능, 실험장비, 허용오차 등 실험 DataBase가 발생한다. 전기IT기기는, 기존의 존기기기에 IT와 통신기능을 융합하여 전기의 공급과 안전성을 강화시킨 제품이다. 본 논문에서는 Smart Grid DataBase 개발을 위한 전기IT기기들을 안전하게 관리하고, IT와 통신을 통한 인터넷 웹브라우저에서 접속할 수 있는 Java Servlet 기술을 이용한, 전기IT기기에 대한 평가기관 및 인증기관이 실시간으로 평가와 인증 자료를 관리 할 수 있도록 한다.

• 한국음향학회지
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• 제15권2호
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• pp.61-71
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• 1996

본 논문에서는 음성합성을 위한 대화체(회화체) 음성의 triphone 단위 데이터베이스 구축에 대하여 보고한다. 특히 본 연구는 방송 매체를 이용하여 대화체 음성을 수집하고 3차에 걸친 대화체 표기(transcription)작업을 거쳐 triphone 단위의 분할 및 음성기호층 단계의 레이블링을 목표로 진행되었다. 수집된 총 10시간 방송분량중 6시간 분량을 데이터베이스 구축에 사용하였으며, 나머지 4시간은 예비 분으로 수집되었다. 낭독체 음성 데이터베이스 구축과는 여러 면에서 다른, 대화체 음성 데이터베이스 구축을 위한 음성 데이터 수집에서부터 triphone 단위 레이블링까지의 과정을 본 논문에서 기술하고, 보다 체계적이고 일관성있는 대화체 음성 데이터베이스 구축을 위해 필요한 계획 및 요구 사항에 대해서 논하고자 한다.

• 한국과학교육학회지
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• 제12권3호
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• pp.35-47
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• 1992

The purpose of this study was to develop a data base system for the information on science education research and development. As a part of this study, a data base program was developed on the Macintosh SE using the 4th Dimension from ACI. The data base consisted of two files, dissertation and journal. The information on the 107 theses including the master's theses and the doctoral dissertations from the Department of Scince Education, Seoul National University and on the 640 papers on science education from the first issues to the 1991 issues of five selected science education journals was input into the data base. The selected five Journals were Journal of the Korean Association for Research in Science Education(published by the Korean Association for Research in Science Education, 148 papers), Teaching Physics(published by Korean Physical Society, 164 papers),Chemical Education(published by The Korean Chemical Society, 98 papers), The Korean Journal of Biological Education(published by The Korean Society of Biological Education, 148 papers), and Journal of Science Education(published by Science Education Center, College of Education, Seoul National University,82 papers).

• 한국데이타베이스학회:학술대회논문집
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• 한국데이타베이스학회 1997년도 International Conference MULTIMEDIA DATABASES on INTERNET
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• pp.358-375
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• 1997

가. 패션 디자인 기초 정보 수집/분석 - 국내외에 산재하는 패션디자인 정보의 기초자료를 입수 - 디자이너별/ 컬렉션별/주제별로 분류 - 가공 나- 패션디자인정보의 멀티미디어 DATA BASE개발 - 화상(IMAGE)/해설(TEXT)/ SOUND의 복합 DATA BASE SYSTEM - PC통신망 서비스를 위한 DATA개발 다. 패션디자인 관련자료의 DB화 - 패션디자인 이론서 - 패션디자인 컨테스트 / 이벤트 정보 - 패션디자인 교육기관 정보 - 패션브랜드 정보 (내셔널 / 디자이너 / 수입) 라. DATA BASE 공급 서비스 - PC통신망을 통한 서비스(DOWN LOAD 가능) - 디자인작품 IMAGE 및 CONCEPT/ DETAILS/ CAPTION - PC통신을 이용 디자인 인력 구인/구직정보 활용 - 패션디자인 해외유학 정보 마. Inter-NET 서비스 - Inter-NET을 이용 국내디자이너작품 해외 소개(중략)

• 한국정밀공학회지
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• 제5권2호
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• pp.56-61
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• 1988

For the use of computer to store, modify and retieve technical data, GT coding system has been considered as one of the effective methods. Effective data management is important for Computer Intergrated Manufacturing. Based on actual data obtained from a hand-tool maker, a die/tool coding system is developed as an example and its data base is designed susing a linked list structure. It is suggested that industries use this method to make their own data base.

• 한국세라믹학회지
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• 제35권4호
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• pp.378-384
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• 1998

We investigated the possibility of systemizing data for the colour gradation of classical ceramics by build-ing program and D-basing each data information in pottery field that has been fall behind in forming data be-cause of many variable and lacking of data system. In this study we manufactured $CoAl_2O_4$ stain that has stable spinel structure at high temperature and then mixed base glaze with stain for the additive per-centage of 0.5 , 1, 5, 10, 15 wt% In thie colouring of Lime base glaze with the wide ranged melting tem-perature the colour development of cobalt-blue sintered at $1250^{\circ}C$ is better than that of $1150^{\circ}C$ $1350^{\circ}C$ The experimental conditions and data are D-based simulated programming of computer. The result of -based data appeared to be more smoothed fusion-adherence in the Matt glaze range of Lime base glaze, The variation of colouring is not found when additive content of glaze is more than 5 wt% and the stable colour development of stain was shown at the content that RO, $R_2O$ percentage is high (the content that R2O3 per-centage is low)