• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.256-259
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• 2011

Smart phones mixed with mobile devices and computers are biggest change of information technology and user-installed applications of them provide various information and services which were only possible on PC and Internet in the past. They are expected to be used by ten million people in 2011 and people with disabilities can get easily information and location of disabled facilities using them. In this paper, we design a mobile information service system for person with disabilities, which provides various information and location of disabled facilities. We build information of disabled facilities using acquisition information through existing web sites and provide location based service with user's location.

• Journal of muscle and joint health
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• v.10 no.2
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• pp.167-187
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• 2003

Ankylosing spondylitis(AS) is one of the most common forms of chronic arthritis causing pain and progressive disability. The purposes of this study were 1) to develop an offline educational program and online educational program for the patients with ankylosing spondylitis; and 2) to test the effectiveness of each program in terms of changes in ankylosing spondylitis self-efficacy, exercise continuity disease activity, physical functioning, and depression. The convenient samples for three groups were selected acceding to the inclusion criteria. Online education group consists of 7 patients, and 14 patients were included for the offline group, while 12 patients were assigned to the control group. Outcomes variables included self efficacy, exercise continuity, disease activity, physical function, and depression and the reliability of each measure was ranged from .88 to .95 in the present study. The offline educational program demonstrated positive effects on self-efficacy, exercise continuity, disease activity, and depression, whereas the online educational program on exercise continuity, disease activity, and depression. The self-efficacy was showed positive effect only in the offline educational program, whereas physical functioning did not improve in both intervention groups. These partial improvements may be due to the small sample size and the methods of online education program. In conclusion, the effectiveness of the offline and online educational programs was partially supported in the present study. For the improvement of these programs, the further study would be necessary to apply this kind of intervention program with larger sample and to test the psychometric of the newly development tools.

• Journal of Korea Multimedia Society
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• v.11 no.1
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• pp.117-128
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• 2008

Recently, as the increase in interaction between the person and the person, the people plentifully use the business card to exchange personal information. So, the people have many business cards. Thus, the people are liable to lose the business cards and finding a wanted business card is very difficult in the huge business cards in offline. And, the people think the business card is a way, which can express individuality. So, the people want to have the business card, which has individuality. Thus, this paper proposes the card system, which is satisfied to solve many problems of the card system in offline and express individuality. The proposed business card system can produce various business cards and puts contents such as video, photo, voice into business cards via mobile devices in anywhere, anytime. Also, this business card system follows the vCard format, which is a file format standard for personal data interchange. Finally, we provide with content-based business card retrieval using video and photo inserted into business cards. Thus, this paper proposes the hybrid business card system, which is satisfied to produce business cards expressed individuality and follows the vCard format.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.9 no.3
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• pp.627-632
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• 2005

Almost all network systems provide an authentication mechanism based on user ID and password. In such system, it is easy to obtain the user password using a sniffer program with illegal eavesdropping. The one-time password and challenge-response method are useful authentication schemes that protect the user passwords against eavesdropping. In client/ server environments, the one-time password scheme using time is especially useful because it solves the synchronization problem. It is the stability that is based on Square Root problem, and we would like to suggest OPI(One Pass Identification), enhancing the stability for all of the well-known attacks by now including Free-playing attack, off-line Literal attack, Server and so on. OPI does not need to create the special key to read the password. OPI is very excellent in identifying the approved person within a very short time.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.5 no.5
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• pp.985-993
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• 2001

Neural networks are shown to be effective in being able to distinguish incomplete penetration-like weld defects by directly analyzing the plasma which is generated on each impingement of the laser on the materials. The performance is similar to that of existing methods based on extracted feature parameters. In each case around 93% of the defects in a database derived from 100 artificially produced defects of known types can be placed into one of two classes: incomplete penetration and bubbling. The present method based on classification using plasma is faster, and the speed is sufficient to allow on-line classification during data collection.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.27 no.2
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• pp.213-222
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• 2017

Online advertisement has many benefits comparing to offline advertisement but it also has many challenging problems by online ad abuses. Advertisement injection (Ad injection) is one of the threats that surreptitiously inserts advertisements without a permission of site owners. Users are exposed to additional ads and redundant web traffic by injected ads can cause a service quality problem. Moreover, advertisers can have economic loss when injected ads are different from original ones. Although ad injection leads to these problems it has not been fully studied yet. A few ad injection researches are done by online advertising providers such as Google. In this paper, we analyze ad injection activities to Korean major portal, Naver. We classify 6 types of ad injections and describe their characteristics by analyzing 27 downloaders and 199 installed programs.

• Journal of Engineering Education Research
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• v.16 no.1
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• pp.3-14
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• 2013

The previously developed practical inquiry activity supporting tools, deduced from the design principles and implementation principles based on the study of precedent researches and theories, applicable to conceptual learning in engineering education were implemented to an on-line learning community, a web-based Windows application, to find out its effectiveness in actual classroom situation through experimental research. The On-line learning community includes the inquiry activity menu to implement learning procedure of inquiry based conceptual learning, the functions supporting the communication among participants, the information sharing function, the scheduling function of class and inquiry activity, the mentoring function, and the evaluation of on-line activities of learners. Experimental study were also conducted in order to analyze the effects of inquiry activity supporting tools on inquiry based conceptual learning in engineering education.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.16 no.9
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• pp.1997-2002
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• 2012

Smart phones mixed with mobile devices and computers are biggest change of information technology and user-installed applications of them provide various information and services which were only possible on PC and Internet in the past. They are expected to be used by thirty million people in 2012 and people with disabilities can get easily information and location of disabled facilities using them. In this paper, we design a mobile information service system for person with disabilities, which provides various information and location of disabled facilities. We build information of disabled facilities using acquisition information through existing web sites and provide location based service with user's location. We also implement and service the proposed system and we show efficiency of our system.

• Journal of Digital Convergence
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• v.18 no.9
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• pp.453-461
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• 2020

This is a study to investigate the factors affecting the Self-control in COVID-19 non-face-to-face online learning participate and to present a strategy for effective program development. The subjects of this study were 105 participants of COVID-19 non-face-to-face online learning participate in J-do area and collected data by self-reported questionnaire. Data were analyzed by t-test, ANOVA, correlation analysis and stepwise multiple regression analysis. The results of this study were the explanatory power was 50.7% with self-control, self-regulation efficacy, self-confidence. As a result of the above, in order to improve the self-control of participants in Multiple disaster situations non-face-to-face online offline learning, it is necessary to develop a fundamental and continuous educational program that improves the self-regulation efficacy and confidence of learning participants.

• The Korean Journal of Archival Studies
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• no.55
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• pp.235-273
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• 2018

The National September 11 Memorial is the institution that collects, assesses, arranges, uses, exhibits, and preserves collections related to the terror attack on September 11, 2001 (9/11), and the explosion incident at the World Trade Center (WTC) on February 26, 1996. After the 9/11 incident, various groups, including the LMDC and the PANYNJ, have participated in the establishment of this organization. Since its initial establishment, the necessity for memorial institutions and detailed characteristics had been discussed in meetings to gather citizens' opinions. Furthermore, the enactment of the 9/11 Memorial Act has secured the institution's stable operation and management. To properly manage disaster-related collections, a just agreement among the citizens and the government should be made to arrive at rational decision-making. This instution can provide answers regarding those ways. Moreover, managing disaster-related collections should be discussed as an important means of remembering, preserving memories, educating, revealing the truth, and preparing academic information and sources. As a result, collaborative governance in records management after a disaster is expected.