• The KIPS Transactions:PartD
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• v.9D no.5
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• pp.813-818
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• 2002

This paper describes how to convert the *.mdl design information generated from the UML editor into the corresponding XML data, which is arranged to be saved in the relational database system. Also, various design informations can be referred and modified to make teams collaborate with each other on the web through the web browser. In addition, we provide an environment in which all the project team members can share a lot of source codes and execution files as well as object files produced from a web-based collaborative development environment. This thesis is the study about a navigation tool system that aids software developers in managing their web-based searches for relationships of design information.

• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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• 2004.04a
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• pp.275-278
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• 2004

The geo-referencing of satellite imagery is a key task in remote sensing. GCPs are points the position of which is known both in the image and in the supporting maps. Mapping function makes the determination of map coordinates of all image pixels possible. Generally manual operations are done to identify image points corresponding to the points on a digital topographic map. In order to accurately measure ground coordinates of GCPs, differential global positioning system (DGPS) surveying are used. To acquire the sufficient number of well distributed GCPs is one of the most time-consuming and cost-consuming tasks. This paper describes the procedure of automatically extracting GCOs using GCP database. GCP image chips and image matching technique are used for automatic extraction of GCPs. We developed image processing tool for making image chip GCPs and Web Server for management of GCPs.

• Proceedings of the Korean Information Science Society Conference
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• 1999.10b
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• pp.632-634
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• 1999

현재는 HTML(Hypertext MarkUp Language) 기반의 웹 페이지가 가장 널리 사용되고 있다. 그러나 사용자의 요구는 갈수록 높아져 2차원의 HTML로서는 표현하지 못하는 3차원 세계의 구현을 갈구하고 있다. 그래서 탄생한 것이 VRML(Virtual Reality Modeling Language)이며 현재 ISO 표준안으로 지정되어 있다. 사용자는 VRML로서 3차원 세계를 구현할 수 있지만, 가상세계의 규모가 커지고 복잡해지면서 문서편집기만으로 구축하기는 거의 불가능하다. 이런 이유로, 기존의 저작도구가 출현하게 되었고, 사용자에게 많은 편이를 제공하였다. 하지만, 이것 역시 몇 가지 문제점 (객체 설계 능력, VRML에 관한 지식 숙지, 일반 사용자에게 부담되는 비용) 때문에 VRML의 대중화를 방해되는 요소로 작용하고 있다. 그러므로 앞에서 제시한 문제점을 개선하기 위해, 사용자가 복잡한 가상객체를 디자인하는 것이 아니라 웹에서 이미 디자인된 객체와 개인자료를 합성하게 함으로써 일반 사용자에게 부담을 크게 줄일 수 있는 새로운 방법으로 개발했다. 그러므로, 본 논문은 인터넷 사용자라면 누구나 쉽게 가상공간을 제작할 수 있는 웹 기반의 저작도구인 WVRAT(Web based Virtual Reality Authoring Tool)의 설계 및 구현에 대해 기술한다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.9 no.2
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• pp.830-842
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• 2015

Trust and trustworthiness of web services and organizations is calculated as scalar values. But there is still a certain level of risk for the overall reliability of this value. In this article, we focus on calculating trust values as intervals between upper and lower bounds based on predefined confidence values through an additional confidence probability. This will give us a more realistic approach to the trust assessments between individuals and organizations. We also developed a web-based software tool, TAST (Trust Assessment Software Tool) that collects the web services' evaluation of different customer groups for similar organizations through the user interface and calculates the trust intervals for predefined and previously selected confidence values. Our model uses a weighted calculation of mean and variances of customer groups in specific periods and analyses the total and incremental trust of different customer groups.

• Proceedings of the Korea Society for Simulation Conference
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• 2001.10a
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• pp.354-358
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• 2001

Cosim (Hardware and Software Co-Simulator) is a JavaBeans-based simulation tool fur validating systems architecture and estimating performance of web applications. Cosim has four components: Modeler, Translator, Engine and Scenario. Users start from Modeler to describe systems architecture in UML(Unified Modeling Language) deployment diagram, and then specify hardware & software performance parameters such as execution delay, network topology, and frame size. All information specified on Modeler are sent to Translator, and then automatically converted to Java programs. Scenario is responsible to run the Java program and produce results in text reports and graphs. Developers can reduce development time and cost by validating systems architecture of web applications before the actual deployment.

• Journal of Institute of Control, Robotics and Systems
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• v.8 no.5
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• pp.413-417
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• 2002

The Internet technology has been recognized not only as a tool far communication in the 21st century but also as an environment for enabling changes in the paradigm of teaching and learning. This paper describes a web-based system development for chemical engineering education. Simulation and visualization of dynamic systems in the environment of a standard web-browser is made possible by extending its capabilities. ActiveX control is used to simulate the system tool far online representation of Virtual Lab. System that is developed using visual basic. The courseware is classified into tutorial, exercises, and virtual experiments.

• Proceedings of the Korean Society of Machine Tool Engineers Conference
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• 2003.10a
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• pp.30-35
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• 2003

Recently, with the rapid growth of information technology, many studies have been performed to implement web-based manufacturing system. Such technologies are expected to meet the need of many manufacturing industries those want to adopt E-manufacturing system for the construction of globalization, agility, digitalization to cope with the rapid changing market requirements. In this research, areal-time web-based machine tool and machining process monitoring system is developed as a first step fur implementing I-manufacturing system. In this system, main spindle motor current and feed current are measured using hall sensors. And the relationship between the cutting force and the spindle motor RMS current at various spindle rotational speed is obtained. Also, a rule-based expert system is developed in order to monitor the machining process effectively. Finally, developed system is applied to real machining process to verify the effectiveness.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2001.04a
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• pp.430-434
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• 2001

Virtual manufacturing system is integrated computer model that represents the precise and whole structure of manufacturing system and simulates its physical and logical behavior in operation.[1] A virtual machine is computer model that represents a CNC machine tool and one of core elements of virtual manufacturing system. In this paper, it is emphasized that a virtual machine must be web-based system for serving information to all attendants in a real machine tool without the restriction of time or location, and then in the fault diagnosis, one of important modules of a virtual machine, the methods of both using the controller signal and web-based expert system are proposed.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2003.06a
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• pp.1257-1260
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• 2003

Rapid Prototyping technology has many advantages such as Rapid Tooling. However, Using the RT technique is limited by the poor surface quality of the RP part. Thus, additional post-machining is required for improving the surface roughness by the sanding, grinding and polishing etc. But, these traditional finishing techniques are time and labor cost consuming. Hence, improving and formulation the finishing technique is inevitably necessary for the RF part. A new post-machining methodology for RP part is presented by the SLS part is used for automobile components in this research. Also, a web based interface tool that user requirements are rapidly ordered for post-machining RP part is developed.

• Genomics & Informatics
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• v.6 no.3
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• pp.157-159
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• 2008

Multiple sequence alignment (MSA) is the most important step for many of biological sequence analyses, homology search, and protein structural assignments. However, large amount of data make biologists difficult to perform MSA analyses and it requires much computational time to align many sequences. Here, we have developed a simple and fast web alignment tool for aligning, editing, and visualizing large amount of sequence data. We used a cluster server installed ClustalW-MPI using web services and message passing interface (MPI). It also enables users to edit multiple sequence alignments for manual editing and to download the input data and results such as alignments and phylogenetic tree.