• 한국CDE학회논문집
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• 제8권1호
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• pp.35-40
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• 2003

In this paper, we present the methods to develop a Web-based CAM system that is capable to simulate machining processes in solid model form through internet. The methods include the dynamic representation on Web of machining operation, workpiece definition on the request of users, interpretation technique of NC par programs through CORBA, and algorithm for efficient machining simulation. Based on the methods, a Web-based CAM system it implemented at http://virtual.ulsan.ac.kr. Using the Web-based CAM system, public users tan simulate machining processes by own NC part programs.

• 대한원격탐사학회지
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• 제24권5호
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• pp.389-396
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• 2008

In these days, various kinds of web applications based on web 2.0 paradigm have been developed. In web 2.0 paradigm pursuing participation, sharing, and openness on the web-as-platform, web mapping or web GIS application are regarded as top most applications, so that web applications, handling geo-spatial contents, with user-interaction interface and search engine of high performance have been provided for both public users and expert users in the special domains. Public and industrial needs for web mapping mashup application by open API, linked with the practical web computing technologies, are gradually increasing. In this study, a user interface in mashup for geo-spatial feature generation was implemented by using mainly Google maps API. Spatial database resources in this implementation are those of Google mapping server. As the results, public users on web client can create their own geo-spatial data sets in web vector formats, without the help of any GIS tools or access to proprietary databases. It is concluded that web-based mashup application in client-side using open API can be used as an alternative for geo-browsing system or portable feature generation system.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2008년도 추계학술대회A
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• pp.1255-1258
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• 2008

Roll to roll (R2R) system, known as 'web processing', is the process of producing these electronic devices on a roll of flexible plastic. With the need of improved performance and productivity in R2R industry, effective control and on-line supervision for web quality is essential. In this report, we present a system for on-line measurement of wrinkles, one of defects incurring due to compressive stresses developed in the web. This system is able to capture an image generated when a well defined line shape laser beam passes through a transparent web. The system calculates 3D shape information, including the height of the wrinkle on the web, and displays the images for the shape information of the web in real time. By using area scan camera and machine vision laser, this system takes more advantages of setting up as a simple and low cost system compared to the line scan camera systems that widely used in web manufacturing. Specific calibration method and analysis on the achievable accuracy will be discussed.

• 인터넷정보학회논문지
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• 제11권6호
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• pp.73-86
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• 2010

최근 웹 공격 기술의 발달로 인하여 기존 웹 로그 분석에 통한 공격 탐지 기술뿐만 아니라 웹 방화벽 로그, 웹 IDS 및 시스템 이벤트 로그 등과 같이 다수의 웹 관련 감사 자료를 이용하여 웹 시스템에 대한 공격 이벤트를 분석하고 비정상 행위를 탐지할 필요가 있다. 따라서 본 연구에서는 웹 서버에서 생성되는 IIS 웹 로그 정보와 웹 방화벽 및 웹 IDS 시스템에서 생성되는 이벤트 로그 정보 등을 이용하여 일차적으로 통합 로그를 생성하고 이를 이용하여 웹 공격을 탐지할 수 있는 시스템을 설계 및 구현하였다. 본 연구에서 제안한 시스템은 다중 웹 세션에 대한 분석 과정을 수행하고 웹 시스템 공격과 관련된 연관성을 분석하여 대용량의 웹 로그 및 웹 IDS/방화벽 정보를 대상으로 효율적 공격 탐지 기능을 제공하도록 하였다. 본 연구에서 제시한 시스템을 사용할 경우 능동적이고 효율적인 웹 로그 공격 이벤트 분석 및 웹 공격을 탐지할 수 있는 장점이 있다.

• Asia pacific journal of information systems
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• 제12권4호
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• pp.55-75
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• 2002

The purposes of this study are in threefold; to explain the interactivity in web site, to extend the Technology Acceptance Model(TAM) in the WWW context, and to examine its relationship with the existing TAM components. We proposed that the WWW is not just web systems but interactive spaces for virtual community. Web interactivity is represented by the two constructs: system interactivity and social interactivity. We extended and empirically examined the TAM for the web context. An individual's attitude toward the use of the web site is significantly affected by the individual's perception about ease of use, usefulness, and system interactivity. At the same time, behavioral intentions to use the web site is highly related to the social interactivity. The results showed that the system interactivity and social interactivity of a web site are important factors in affecting the user's beliefs and behavior intention of such a web site, So web page providers not only have to make the web site useful and easy to use, but also need to design an interactive web page by putting both systemic aspects and social aspects.

• 한국CDE학회논문집
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• 제7권2호
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• pp.110-120
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• 2002

This paper presents the method that allows easy and rapid integration of legacy resources within the company and between departments. The proposed system can easily construct a distributed environment for collaborative design between departments in the companies. It supports knowledge-based integration system, which allows designers to develop product with deep knowledge about product design. For the purpose, DOME (Distributed Object-based Modeling Environment)-which has been developed through various studies-was used in this paper. To overcome its problems and insufficiency, the Web-Integrator is proposed. The Web-Integrator is very suitable for an Internet environment because it uses HTTP (Hyper Text Transfer Protocol) and XML (extensible Markup Language) as its main communication method. By supporting the remote object access via URL (Uniform Resource Locator), the implementation of the integrated system makes the Web-Integrator systematic and intuitive. All the functions and resources provided by DOME could be used with the interface that enables bi-directional communication with the DOME system. Web-Integrator provides full web-based environments for the general designers, who do not have a full design knowledge and experience, and the proposed system allows design operations to happen at any place and anytime. Also it provides XML-RPC(Remote Procedure Call) based web service framework, which allows other systems to use easily the service that the DOME system supplies regardless the location and the platform.

• 한국정보통신학회논문지
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• 제19권5호
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• pp.1117-1124
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• 2015

본 논문은 BYOD(Bring Your Own Device)를 포함한 모바일 웹 환경을 위한 웹 세션 관리 시스템에 대해서 기술한다. 이 시스템은 보안이 강화된 세션 토큰으로 운영되며, 고유 식별자, time stamp, 암호 알고리즘으로 구성된다. 시스템에서 고유 식발자는 BYOD를 포함한 모바일 환경에서 보안을 위하여 각 단말기를 구분한다. 시스템에서 time stamp는 BYOD를 포함한 모바일 환경에서 보안을 위하여 세션 유효성을 판단한다. 시스템에서 암호 알고리즘은 세션 토큰의 내부 정보를 보호한다. 본 논문은 시뮬레이션 기법을 사용해서 모바일 웹 상에서 세션 관리 시스템의 보안성을 분석한다. 제시된 방법은 기존 방법에 비하여 BYOD 환경의 모바일 웹 보안에 있어서 더 적합하다.

• 한국통신학회논문지
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• 제24권7B호
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• pp.1331-1341
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• 1999

본 연구에서는 SQL과 유사한 질의어를 사용하여 웹에 등록된 정보를 검색하는 시스템인 WebDBs(Web DataBase system)를 제안한다. 제안된 시스템에서는 웹에 산재되어 있는 HTML 문서로부터 검색에 필요한 정보들을 자동으로 추출한다. 추출된 자료에 대하여 SQL 기반의 질의 처리가 가능하도록 하였다. 웹 데이터베이스 시스템에서는 대부분의 질의 수행 시간이 통신 회선을 통한 문서 획득에 소요된다. 따라서, 웹 검색의 경우 웹 지역성에 많이 의존한다는 점에 착안하여, 사용자 검색 결과를 캐쉬에 저장하고 유사한 응용에서 이를 재사용 하고자 한다. 이때 캐쉬에 저장된 정보들을 검색된 질의와 연관하여 저장함으로써 좀더 사용자 응용을 고려한 캐쉬 관리기법을 제안하였다. 또한 위와 같은 개념에 입각한 웹 검색엔진을 구하였다.

• 한국정밀공학회지
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• 제18권5호
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• pp.84-89
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• 2001

The alignment of the rollers carrying the web is found to be one of important factors to the lateral behavior of the moving web and to the quality of the final web products. But, the perfect alignment of the rollers is not always possible and the web itself can be cambered. Thus the control of lateral behavior of the moving web is critical in the most of web handling systems. The web guiding system that adjusts the angle of the alignment between two adjacent rollers is commonly used in industry. But, in this paper a new web guiding system is proposed by using the lateral dynamics of the moving web induced by a tilted roller in normal direction of a web. The computer simulation study was carried out to verify the steering performance of the suggested guiding system. Computer simulation study shows that the performance of the new guiding mechanism is better than that of an existing guiding mechanism.

• Journal of information and communication convergence engineering
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• 제17권4호
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• pp.234-238
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• 2019

Existing web applications and services have historically been implemented using JavaScript. However, new technologies such as artificial intelligence, the Internet of Things, and Big Data are being developed as part of the Fourth Industrial Revolution. With the definition of the HTML5 web standard, services (such as the technologies mentioned above) that were previously not available through the Web become available. These services, however, need to have the same performance as native applications, and implementing these services will require new technologies. Therefore, additional tools that can work on the Web with native performance are needed. In this paper, a system for branching processing was established using JavaScript and WebAssembly, a language that can operate on the Web. This system performs user requests in advance, and requests are branched in a language that produces faster results. Therefore, a service capable of quick response times can be implemented.