• Journal of the Korea Safety Management & Science
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• v.6 no.2
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• pp.241-250
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• 2004

Recently, growth of internet causes rapid changes in many areas of statistics such as statistical computation and education. Especially, bootstrap is the most interesting statistical methods applying computer resampling simulation. In this study, we try to present how to use a method of bootstrap on the internet. We also develop to user a statistical system which is programed with java applet for user to handle easily.

• Proceedings of the Korea Multimedia Society Conference
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• 1998.04a
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• pp.339-343
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• 1998

본 연구에서는 Web 환경에서 분산객체 기술인 CORBA(Common Object Request Broker Architecture)를 이용하여 Java Applet으로 구현되는 의료영상회의 시스템의 Web Client를 설계 구현하였다. 플랫폼(platform)에 독립적이고, 다양한 개발 언어를 지원하는 CORBA를 기반으로 한 이 의료영상회의 시스템은 시스템의 개발, 확장성 및 유지 보수 측면에서 아주 뛰어나다. 또한 객체 지향언어이면서 다양한 플랫폼에 구애를 받지 않는(Architecture Neutral) Java 언어를 이용하여 Web 환경에서 쉽게 실행 가능한 Applet으로 의료영상회의를 할 수 있는 Web Client를 설계 구현하였으므로 Web 브라우저를 이용할 수 있는 환경이라면 손쉽게 이용할 수 있는 장점을 가진다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.6 no.6
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• pp.915-922
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• 2002

This paper presents an implementation of an Remote Examination System on Internet using Java and SWING GUI API. The system is consisted of three parts: generating examination part that is Java application, answering questions part that is Java Applet, reviewing results part that is Java Applet. The first part is implemented with the 2-tier client/server architecture and the last two parts is implemented the 3-tier client/server architecture. Database programming is done using Java JDBC API for database independence and portability. This system can be used the evaluation of lectures, and substituted for pen-and-pencil examinations or adopted to survey applications based on Internet.

• Journal of Advanced Navigation Technology
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• v.3 no.2
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• pp.132-138
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• 1999

This paper describes the development of an automatic dependent surveillance system(ADS) with Java on Web environment. The ADS consists of a server module and a client one. The server module performs a database server for gathering GPS data from airplanes. It also dose an Web server function for sending Java applet to clients. The applet enables each client to obtain the current flight information from the server via the Internet without a special client software. This client-server based ADS with Java environment has several advantages over other systems. One is not to need for installing special client software on each client system. The other is its simplicity on system maintenance. The reason why it has simplicity is to require only server program modification including the applet without updating client software. After testing the ADS system with the flight information of a Mooney, we can show that the prototype system can be a candidate for developing commercial products.

• Proceedings of the KSME Conference
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• 2001.06e
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• pp.488-493
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• 2001

This paper introduces some useful Java technologies for utilizing the Internet in numerical analysis, and suggests one architecture performing efficient numerical analysis in the Intranet by using them. The present work has verified it's possibility by implementing some parts of this architecture with two easy examples. One is based on Servlet-Applet communication, JDBC and Swing. The other is adding multi-threads, file transfer and Java Remote Method Invocation to the former. Through this work it has been intended to make the base for the later advanced and practical research that will include efficiency estimates of this architecture and deal with advanced load balancing.

• Journal of Korea Multimedia Society
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• v.2 no.4
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• pp.419-429
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• 1999

In this paper, we have designed and implemented Web-based realtime distant education system by using multimedia CAI and Java technology. The proposed system can provide not only Web-based courseware but also text-based text lecture and distant OHP in real time. The Courseware provides computer basic education and has been developed by using Authorware. The Client/server program of Text lecture and distant OHP for a realtime distant education has been developed by using Java applet and application. Java servlet has been used to construct CGI programs.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2003.06a
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• pp.1735-1738
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• 2003

The dynamic design and evaluation of mechanisms need to be performed in a collaboration or concurrent system in order to shorten the development period of the product. A web-based system is the most suitable concurrent system to promote effective collaboration. In order to develop such a web-based system, Java Applet, which is not restrained by a computer's H/W and S/W, is widely used. This paper introduces a web-based 3D animation system for visualizing the motions of mechanisms. This web-based 3D animation system uses a JAVA Applet program method, which can be operated in a web-browser, and the Open Inventor for Java, which supports 3D graphics. It does not only allows the user to verify dynamic simulation results and design variables through the web, but it also has the advantage of supporting collaboration among a number of users through simultaneous connections.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2003.06a
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• pp.1747-1750
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• 2003

The development of a Web-based powertrain performance simulation system is introduced. The development approach of system architecture and each module is introduced along with the H/W and S/W used. The interface with all users is developed via a JAVA applet. The powertrain modeling and other job history data of a user is managed systematically on the server by database to increase the reusability of the data. A self-developed program using object-oriented programming is used as a solver for the performance simulation. The graph tool for the analysis of simulation results has the collaboration support developed based on JAVA so that synchronous users can view the same result. As a result, the powertrain simulation is possible only with Web-browser for the user and the collaboration support among the relevant engineers is possible.

• Proceedings of the Korean Information Science Society Conference
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• 2004.04a
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• pp.280-282
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• 2004

최근 개인자료의 유출 및 불법적인 사용이 사회적으로 큰 이슈가 되고 있어 개인의 정보보호 및 신분확인에 대한 요구가 증가하게 되었다. 이로 인하여 최근 안전한 데이터 전송과 거래를 위해 스마트카드의 이용이 증가되고 있는 추세이다. 특히 자바카드는 스마트카드 플랫폼에 자바의 기술을 접목시킨 것으로 양방향 통신, 정보의 보호기능 등을 수행할 수 있으며, 개인을 확인할 수 있고 이동성이 뛰어나며 복제가 어렵고 암호 알고리즘을 카드 내부에서 수행하여 보안상 매우 좋은 이점을 지니고 있어 스마트카드에서 필요로 하고 있는 다양한 서비스의 내용을 충분히 안정적으로 제공하고 있다. 본 논문에서는 이런 다양한 응용분야에 이용되는 자바카드의 보안성을 높이기 위하여 기존의 단순한 사용자 인증에 사용되는 PIN정보와 생체정보인 사인데이터를 함께 이용한다. 또한 개인에 따른 정보를 저장하는 방법과 이 정보를 접근하기 위하여 데이터를 사용하는 사용자간의 접근을 제한하기 위한 사용자의 접근권한을 설계하였다. 이와 같은 Applet을 설계함으로써 개인정보의 보다 안전하고 신뢰성을 보장하고 개인의 불법적인 유출 및 도용의 완벽한 제어가 될 것으로 기대된다.

• Proceedings of the IEEK Conference
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• 2000.07a
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• pp.257-259
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• 2000

In this paper, a word-unit recognition is performed to implement a speech recognition system over the web, using JAVA Applet and continuous distributed HMM. The system based on Client/server model is designed. A client computer processes speech with Applet, and then transmits feature parameters to the server computer though the Internet. The speech recognition system in the server computer transmits the result applied by the forward algorithm to the client computer and the result is displayed in the client computer by text.