• Journal of Information Technology Applications and Management
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• v.16 no.4
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• pp.263-283
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• 2009

Although some CASE tools supported conceptual data design, they required for users too much preliminary knowledge to learn how to use and handle them. In addition, in a number of studies on conceptual data design with natural language, they claimed passive participation for users with conforming to messages predefined by CASE tools. As an alternative to these traditional CASE tools, we proposed an ERD formulator for automated data design tool, called ERDF, so that even ordinary users, not necessarily data modeler, are capable of formulating ERD on business requirements by use of ERDF. We, first of all, introduced NSM as the standard methodology. We also designed the structure of ERDF including main controller, input controller, operation controller, regulation controller, schema controller, and output controller. We then defined conceptual domains and basic operations to lay down schema operations as well as sentence rules to handle input sentence in natural language. To get an ERD that is faithful to business requirements, we laid out supplementary design for dialogue and confirmation of soundness and completion.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2017.11a
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• pp.64-65
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• 2017

최근 1인 미디어인 개인방송은 무선통신망과 스마트폰 등의 발달로 현재 많은 사람들이 이용하고 있는 인터넷 서비스 중 하나이다. 개인방송이 인기를 끌고 있는 가장 큰 이유는 방송을 진행하는 브로드캐스터와 시청자가 실시간으로 소통하며 양방향 서비스를 제공할 수 있기 때문이다. 하지만 기존의 플랫폼에서는 단순히 시청자들의 채팅을 통해서만 양방향 소통을 진행한다는 한계점이 존재한다. 이에 본 논문은 채팅로그뿐만 아니라 시청자들의 사진, 카메라 롤, 영상, 음성의 링크를 채팅창에 띄우고 부가정보서비스 창을 구축하여 다양한 의견을 공유할 수 있게 되고 브로드캐스터 컨트롤 시스템을 이용하여 부가정보서비스를 제어할 수 있게 됨으로써 한층 더 흥미로운 방송을 운용할 수 있게 하는 프레임워크를 연구하였다.

• Journal of Korean Society on Water Environment
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• v.24 no.6
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• pp.817-822
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• 2008

In order to identify various Cryptosporidium species in environment, nested PCR-RFLP and DNA sequencing method were used. The sensitivity of nested PCR-RFLP based on 18s rRNA gene was shown to 1 oocyst. Therefore, we applied nested PCR-RFLP method to environmental samples. As a result, only 4 samples out of 8 samples confirmed as Cryptosporidium parvum by standard method of Cryptosporidium were identified as Cryptosporidium parvum by nested PCR-RFLP and DNA sequencing method. The rest of 4 samples among 8 samples were identified as Cryptosporidium muris, Cryptosporidium bailey. Therefore, in addition to standard method of Cryptosporidium, supplementary verification through nested PCR-RFLP and DNA sequencing should be needed to give more accurate information about risk of Cryptosporidium.

• Proceedings of the KIEE Conference
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• 1997.11a
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• pp.16-18
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• 1997

There have been great advances in communication and networking in recent times. It is necessary to take advantage of this information infrastructure for the purpose of developing an engineering education system. But the networking system was expensive or hard to develop. The current international networking is converging to the use of the World Wide Web system. It has become a new standard for global network communication. But there are not a great number of applications which take full advantage of this environment. In this Imper, an interactive education system for engineering education using the World Wide Web will be presented. This can be used as a supplementary kit for engineering education of synchronous machine design. The system is developed using JAVA and can be accessed using Web browsers.

• Journal of applied mathematics & informatics
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• v.22 no.1_2
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• pp.523-533
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• 2006

We analyze two finite buffers queueing system with priority scheduling dependent upon queue length. Customers are classified into two types ( type-l and type-2 ) according to their characteristics. Here, the customers can be considered as traffics such as voice and data in telecommunication networks. In order to support customers with characteristics of burstiness and time-correlation between interarrival, the arrival of the type-2 customer is assumed to be an Markov- modulated Poisson process(MMPP). The service order of customers in each buffer is determined by the queue length of two buffers. Methods of embedded Markov chain and supplementary variable give us information for queue length of two buffers. Finally, performance measures such as loss and mean delay are derived.

• Proceedings of the KIEE Conference
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• 2002.07d
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• pp.2451-2453
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• 2002

In this paper, we present an infrared sensors aided map building method for mobile robot using genetic algorithm and fuzzy logic. Existing Bayesian update model using ultrasonic sensors only has a problem of the quality of map being degraded in the wall with irregularity which is caused by the wide beam width of sonar waves and Gaussian probability distribution. In order to solve this problem we propose an improved method of map building using supplementary infrared sensors. In the method, wide beam width of sonar waves is divided by infrared sensors and probability is distributed according to infrared sensors' information using fuzzy logic and genetic algorithm.

• Proceedings of the KIEE Conference
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• 1997.07a
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• pp.27-29
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• 1997

There have been great advances in communication and networking in recent times. It is necessary to take advantage of this information infrastructure for the purpose of developing an engineering education system, but the networking system was expensive or hard to develop. The current international networking is converging to the use of the World Wide Web system. It has become a new standard for global network communication. But there are not a great number of applications which take full advantage of this environment. In this paper, an interactive education system for engineering education using the World Wide Web will be presented. This can be used as a supplementary kit for engineering education of DC machine design. The system is developed using JAVA and can be accessed using Web browsers.

• The Journal of the Korea Contents Association
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• v.10 no.12
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• pp.173-180
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• 2010

Cultural contents industry is a kernel industry based on knowledge. This study is to suggest some complements by watching and analyzing cultural industry policy and status of especially animation America, England, France and Japan and that of Korea to aim at American market. I described financial resources, creation and technology, development of human resources, export method, improvement of legal system for the supplementary method of animation export strategy. This reports could be applicable as a information to plan industry policy or to develop detail program.

• Journal of The Korean Association For Science Education
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• v.10 no.1
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• pp.33-45
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• 1990

To achieve the aim of science education, it is known that warious teaching, and learning materials should have to be used. As a sub-textbook for primary science education, 'Sil Hum-Kwan Chal (Experiment and Observation), teaching and learing material are developed and using now in science. This material have following characteristics; (a) Soruce-book contains reading materials for additional information, various pictures to enririch the science concepts, and supplementary and enrichment activities. (b) Work-book consists of the detailed procedures of activities of experiments presented in the textbook, student can record the experimental procedures and results. (c) Operational manuals provide operation techniques for experimental equipments which are used in science class. In this study the using status are surveyed for the 3rd grade of primary school, and based on this survey the improvement plan are discussed in view of design, quantity and utility, of sub-textbook.

• Proceedings of the KIEE Conference
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• 1999.07a
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• pp.197-199
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• 1999

There have been great advances in communication and networking in recent times. It is necessary to take advantage of this information infrastructure for the purpose of developing an engineering education system. But the networking system was expensive and hard to develop. The current international netwoking is converging to the use of the World Wide Web system. It has become a new standard for global network communication. But there are not a great number of applications which take full advantage of this environment. In this paper, an interactive virtual electrical machine lab system using the World Wide Web will be presented. This can be used as a supplementary kit for engineering experiment of transformer, induction motor, direct current motor, and synchronous motor. The system is developed using JAVA and can be accessed using Web browsers.