• The Journal of Korean Society for Radiation Therapy
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• v.24 no.2
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• pp.77-84
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• 2012

Purpose: To develop a geometrical quality control real-time analysis program using an electronic portal imaging to replace film evaluation method. Materials and Methods: A geometrical quality control item was established with the Eclipse treatment planning system (Version 8.1, Varian, USA) after the Electronic Portal Imaging Device (EPID) took care of the problems occurring from the fixed substructure of the linear accelerator (CL-iX, Varian, USA). Electronic portal image (single exposure before plan) was created at the treatment room's 4DTC (Version 10.2, Varian, USA) and a beam was irradiated in accordance with each item. The gaining the entire electronic portal imaging at the Off-line review and was evaluated by a self-developed geometrical quality control real-time analysis program. As for evaluation methods, the intra-fraction error was analyzed by executing 5 times in a row under identical conditions and procedures on the same day, and in order to confirm the infer-fraction error, it was executed for 10 days under identical conditions of all procedures and was compared with the film evaluation method using an Iso-align$^{TM}$ quality control device. Measurement and analysis time was measured by sorting the time into from the device setup to data achievement and the time amount after the time until the completion of analysis and the convenience of the users and execution processes were compared. Results: The intra-fraction error values for each average 0.1, 0.2, 0.3, 0.2 mm at light-radiation field coincidence, collimator rotation axis, couch rotation axis and gantry rotation axis. By checking the infer-fraction error through 10 days of continuous quality control, the error values obtained were average 1.7, 1.4, 0.7, 1.1 mm for each item. Also, the measurement times were average 36 minutes, 15 minutes for the film evaluation method and electronic portal imaging system, and the analysis times were average 30 minutes, 22 minutes. Conclusion: When conducting a geometrical quality control using an electronic portal imaging, it was found that it is efficient as a quality control tool. It not only reduces costs through not using films, but also reduces the measurement and analysis time which enhances user convenience and can improve the execution process by leaving out film developing procedures etc. Also, images done with evaluation from the self-developed geometrical quality control real-time analysis program, data processing is capable which supports the storage of information.

• Journal of the Korean Professional Engineers Association
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• v.34 no.4
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• pp.55-61
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• 2001

Enterprise Information Portals (EIPs) are the applications that enable companies to get access to Internally and externally stored information. Also EIPs offer inside and outside users of the company, a unified window to personalize whatever Information they need for accurate business decisions. EIPs will be applied to B2E, B2B, B2C, G2B, G4C and G2G Portals of e-Business.

• Journal of Information Technology Applications and Management
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• v.15 no.4
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• pp.77-101
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• 2008

The market size of Internet portals has been continuously expanded and also competition has been fierce. For the business success of Internet portals, it is necessary to repeatedly perform a renewal project which improves their services, reflecting more improved or changed strategies. Accordingly, this paper proposes an analysis methodology for performing the renewal project more systematically and effectively. The methodology consists of four phases : establishing improved strategies, analyzing customers, deriving service alternatives, and determining services. The methodology places an emphasis on reflecting effectively customers' standpoints (i.e. customers' needs) and service providers' standpoints (i.e. business strategy) upon service improvement. Furthermore, the methodology includes a specific technique for analyzing the feasibility of services. To demonstrate the practical usefulness of the methodology, a real-life case is illustrated.

• The Korean Journal of Applied Statistics
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• v.24 no.6
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• pp.1169-1179
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• 2011

Through social network analysis using portal site information, we study the relation of the probability distributions that appear in statistics textbooks with probability distributions that appear in daily life. Based on daily life, we discuss probability distributions that must be emphasized in frequent use.

• Journal of Multimedia Information System
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• v.4 no.4
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• pp.211-218
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• 2017

Recently, the number of subscribers of the webtoons published by some major internet portal companies and others is increasing and their revenues are continually rising. Accordingly, a number of studies are being conducted for this phenomenon. For the uploaders off webtoons, their works are graded and added up for the promotion review but the criteria of such a promotion system usually fall short of readers' expectations. Although most of the subscribes of webtoons are drawn into subscription mainly by the recommendation of people around them, the responses from the new subscribers were often quite different from what the portal companies have anticipated, affecting the rank of the webtoon. Thus, a promotion management system which provides a reliable and clear method of assessment is proposed in this study including the revenue and copyright management scheme for the cartoonists.

• Korean Journal of Oriental Medicine
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• v.16 no.2
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• pp.109-118
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• 2010

Traditional Korean Medicine Information Portal OASIS has been upgraded continuously from the beginning of it's service. It builds up more contents and adds more functions to provide rich information for TKM's researcher. But it's improvement strategy is not systematic and not supported from objective data. So we did online survey and analyzed the results to get insight for improving and activating the OASIS. Also we compared the survey with the previous one conducted in 2009. From the analysis of survey, we can get the 4 results. First OASIS have aged users than young users. Second 39.0% users are using OASIS 2-3 times in a month. Third 18.8% users want OASIS to provide the conference paper in TKM. Finally 21.7% users want paper map analysis system. We must do information strategy planning to get the insight for the improvement. And this survey analysis result will be most important material to our planning. Also we will use this survey analysis result to satisfy the users' needs.

• Journal of the Korean Society for Library and Information Science
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• v.56 no.1
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• pp.47-65
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• 2022

This study investigated college students' demand for academic information portals and conducted an improvement plan to help ScienceON become an eco-friendly portal for college students. To this end, an academic information portal similar to ScienceON was investigated and analyzed, and FGI interviews were conducted with college students to derive improvements based on the problems ScienceON felt by college students. The improvement measures proposed based on the research results are as follows. First, it is necessary to strengthen the integrated search function and instill confidence that college students can obtain all the information they want from ScienceON. Second, it is necessary to have UIs such as Google and Naver, which are preferred by college students, and improve the current hard design. Third, it is necessary to make ScienceON familiar by promoting it targeting lower grades of the university. Currently, college students belong to the MZ generation, and the MZ generation is expected to become a generation that forms a social core in the future, and related research on the MZ generation is increasing. Therefore, this study can be used as basic data for research on MZ generation, and in particular, it seems that it can be used as a reference for the demand for information search and services of MZ generation.

• Proceedings of the Korea Society for Industrial Systems Conference
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• 2000.11a
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• pp.169-211
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• 2000

Enterprise Portal 이란 기업 내에 저장되어 있는 정보를 기업 안팎에서 공유할 수 있도록 해주고 사용자들로 하여금 의사결정을 하는데 필요한 정보로의 개인화 된 단일창구를 제공해주는 IT와 Business Model을 통칭한 개념입니다. Knowledge Management System ; 전사적인 지식 공유를 통한 경쟁력 강화를 목적으로, 인터넷 플랫폼과 개방형 표준 아키텍쳐를 이용하여 분산된 데이터와 애플리케이션 레벨을 통합.(중략)

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 2004.11a
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• pp.40-40
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• 2004

• Digital Contents
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• no.11 s.102
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• pp.54-57
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• 2001

본고는 기업정보 포탈 (Enterprise Information Portal : EIP)의 필요성에 대해 일본인 전문가들이 기술한 원고이다. 이글을 통해 일본의 EIP 수준을 알아보고 우리나라의 경우와 비교하여 경쟁력을 가늠해 보고자 한다. 다만 EIP에 대한 개념정리가 주로 다뤄지고 있어 그러한 비교분석만에 초점을 맞춘다는 것이 무리가 있을수 있다. 일본의 시장이나 기술 수준을 평가하기에는 다소 미흡한 점이 있으나 다만 일본에서의 논의되고 있는 수준을 짐작하는데에는 무리가 없을 듯 싶다.