• Journal of Advanced Navigation Technology
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• v.25 no.6
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• pp.562-568
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• 2021

Seat reservations and civil complaints in the library reading room have been done face-to-face by managers, and efficient management has been difficult. In addition, there is a problem that it is difficult to take action in the event of a civil complaint due to user inconvenience, such as a noise problem between users in the reading room. In this study, an online reservation system was developed for efficient management of seats in the library reading room so that it could be serviced non-face-to-face. In addition, when using the library reading room, it is possible to apply for non-face-to-face civil complaints when complaints occur due to noise problems between users, loss of belongings, and snoring during the user's sleep. Managers can smoothly manage library reading rooms through non-face-to-face inconvenience reports. It is possible to increase the satisfaction of using the library by resolving the inconvenience of users. The developed service app allows seat reservations and anonymous inconvenience reports. The administrator can check the received inconvenience report and warn the user of the seat with an IoT sensor-based LED. When corrective action is completed, the result of the action may be fed back to the reporter.

• Korean Journal of Human Ecology
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• v.18 no.3
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• pp.583-595
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• 2009

The study was to see if the perceptions of pre-service kindergarten teacher toward the education of children's fundamental habit would show different characteristics based on their school type, education learning experience, and practicum experience. Subjects were 200 students majoring in early childhood education who were attending 3-year colleges and 4-year universities in Jellabuk-do and Daejeon. Preceding researches were referenced to develop questionnaire for the research method. The collected data was analyzed through t-test and Chi-square test. The followings are results: First, the interest in education showed significant difference in school type, but not significant difference in education learning experience and practicum experience. Second, the recognition in educational goal showed significant difference in practicum experience, but not significant difference in school type and education learning experience. the educational content showed significant difference in education learning experience, but not in school type and practicum experience. the recognition in educational principal showed significant difference in school type, but not significant difference in education learning experience and practicum experience. the recognition in educational method showed no significant difference in school type, education learning experience and practicum experience. Third, the recognition in educational hardship toward teaching showed significant difference in school type, education learning experience and practicum experience. The results of study would provide the righteous cognitive establishment of children's fundamental habit education and serve the appropriate guidelines being professor for our perspective kindergarten teachers. Also, they would be utilized as basic information to plan the direction of children's fundamental habit education to develop the program of children's life guidance.

• The Transactions of the Korea Information Processing Society
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• v.5 no.12
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• pp.3047-3062
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• 1998

This paper deseribes the desihn and the implementation of the Realtime Transport Protocol(RTP)/ Rdaltime Control Protocol(RTCP) (RFC 1889,1890) that is used to transmit the audio/video data to any destination and to feedback the Quality of Service (QoS) information of the received media data to the sender, in the teleconferencing systems proposed by ITU-T. These protocols are implemented with multi thead technique and run on top of UDP/IP-Multicast through the socket interface as the underlying protocol. The upper layer is impelmented such that in can be accessed by the H245 comference control protocol. The RTP packetizes the digitized audio/video data from the encoder info a fixed format, and multieast to the participants. The RTCP monitors RTP packets and extracts the QoS values from it such as round-trip delay, jiter and packet loss to form RTCP packets and non periokically sends them to the sender site. In this Paper, we also descritx the study of measurement and analysis for QoS factors that observed on performing teleconferencing system over Internet. The results from this experiment is indicate that RTT and Jitter value are acceptable even entwork load is high. However, it appears that packet loss rate is high in daytime and most losses periods have length one or two.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.7
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• pp.92-101
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• 2017

The SNS website can take full advantage of the characteristics of users to conduct e-commerce. The e-commerce website's organizing ability will be greatly strengthened by SNS and creates greater value for consumers. This article examined the Chinese largest SNS (Weibo) users as research objects, and combined the development status of SNS in China. This article focuses on the influence to consumer's purchase intention in three aspects: number of comments, consumer involvement level, and consumer appealing method and examines how the interaction of the number of comments and consumer appealing method affects the purchase intention. An investigation was conducted on 400 users of SNS and using valid questionnaires to perform reliability analysis, validity analysis, independent sample t-test, and double factor variance analysis using SPSS21. The research results indicated that the number of comments and rational appealing method had significant effect on the purchase intention. The mediating or controlling the purchase involvement level will disturb the influence of the number of comments but will have no effect on the information appealing method.

• Korean Journal of Clinical Pharmacy
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• v.31 no.4
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• pp.268-277
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• 2021

Background: Most antipsychotic drugs studies have been mainly conducted on side effects, randomized clinical trials, utilization rates, and trends. But there have been few studies on the influencing factors in elderly patients. The purpose of this study was to analyze the influencing factors on the outpatient prescription of antipsychotic drugs in the elderly patients. Methods: Active ingredients of antipsychotic drugs in Korea were selected according to the Korean Pharmaceutical Information Center (KPIC)'s classification. Data source was Korean Health Insurance Review and Assessment Service (HIRA) claims data in 2020 and target patient group was the elderly patient group. We extracted patients who have been prescribed one or more antipsychotic drugs and visited only one medical institution. Data were analyzed using descriptive statistics, chi-square, t-test, negative binomial regression. Results: A number of outpatients were 245,197 and prescriptions were 1,379,092. Most characteristics of patients were 75-85 year's old, female, health insurance type, no disease (dementia, schizophrenia), atypical drugs, cci score (>2) and characteristics of medical institution were neurology in specialty, rural region, general hospitals. Results of regression showed that patient's characteristics and medical center characteristics had significant effect on the outpatient prescription of antipsychotic drugs in the elderly patients. Conclusion: This study suggests that national policy of antipsychotic drugs in the elderly patients, with the consideration of the patients' and medical institutions' characteristics, is needed.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.14 no.5
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• pp.3-10
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• 2004

A Wireless Lan has an importance of access control, because we can use wireless Internet via AP(Access Point). Moreover, to use wireless LAN, we will go through authentication process of EAP. DoS(Denial of Service) attack is one of the fatal attack about these AP access and authentication process. That is, if malicious attacker keeps away access of AP or consumes memory of server and calculation ability of CPU and etc. compulsorily in authentication process, legal user can't get any services. In this paper, we presents the way of protection against the each attack that is classified into access control, allocation of resource, attack on authentication protocol. The first thing, attack to access control, is improved by pre-verification and the parameter of security level. The second, attack of allocation of resource, is done by partial stateless protocol. And the weak of protocol is done by time-stamp and parameter of access limitation.

• Culinary science and hospitality research
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• v.13 no.1 s.32
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• pp.192-203
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• 2007

The purpose of this study is to figure out the plans to improve business in Hotel French restaurants. This study conducts documentary study and empirical study. To achieve the purpose, a survey was conducted by 172 staffs of Hotel French restaurants in Seoul. The result of this research is as follows. Hotel restaurant operators recognize the importance of promotion and development of new sales goods. But they haven't done long-term marketing directions focusing on cost-saving and ephemeral sales promotion effects. Hotel restaurants should establish public information strategies uniformly and look for the plans that offer customers adequate information. Also, they should make a differentiation strategy within the same industry, can always give recency to customers, and enhance the event-connecting promotion menu and business activation.

• Proceedings of the Korean Society of Computer Information Conference
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• 2014.07a
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• pp.397-398
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• 2014

연구기획 단계부터 사업화에 대한 고려를 위해서 기존의 연구 성과에 대한 조사 분석을 포함하는 해당 연구 주제에 대하여 기술동향, 시장분석, 정책 등 다양한 정보를 종합적이고 전략적으로 활용할 수 있는 정보 서비스 환경에 대한 필요가 급증하고 있으며, 국가연구 생산성 제고를 위해 후속심화 연구를 위한 연구 성과의 효율적인 공유 및 재사용을 지원하는 표준화 기반의 정보공유인프라 구축 및 운영이 필요하다. 이를 위해 국가R&D정보와 NDSL 정보를 연계하고, 이를 활용하여 연구자의 R&D활동관련 문제해결을 지원하는 서비스 체계를 구축할 필요가 있다. 이를 위해, NDSL-NTIS 연계 및 융 복합 서비스를 개발하고 이를 뒷받침하기 위해 연계체계 구축, 분석기반 개선, 개념기반 체계 구축, 연계활용을 지원하는 메타데이터 관리기능 개선을 수행하는 것을 목표로 국가R&D정보 네비게이션 서비스를 개발하였다.

• Journal of Korean Library and Information Science Society
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• v.31 no.1
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• pp.87-114
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• 2000

The purpose of this study is offering appropriate system and training program to helf the system designer and the trainer in addition to analyze information use behavior about the web search tools and evaluate the estimated system by user groups. The results of the study are as follows $\circledS1$ It is desirable to consider age than other demographic variables in the case of web search tool. $\circledS2$ It is desirable to design Directory Search Tool in the case of web search tool which serves the student user group. $\circledS3$ An Intelligent Search Tool is more appropriate for the students who are using keyword search tool than any other tools. $\circledS4$ A discussion about standard classification of the web information should be accomplished soon because users feel confused in using web search tools due t o absence of standard mode of classification about classified item. $\circledS5$ Librarians need the cognition about data on internet s a source of information and need positive service and user training program about these information because student users hardly get help from librarians or library orientation for learning method to use web search tool. $\circledS6$ Internet use experience and years of computer use had effect on their use ability when using web search tool, whereas computer use experience, library use experience and Online Public Access Catalogs (OPAC) use experience had no effect on it. Especially, OPAC use experience had no effect on use ability of web search tool of student user group because student user groups had no information about internet and web search tool and they did not recognized the difference about search method between web search tool and OPAC. $\circledS7$In the case of web search tool, it si important to index the increasing web resource automatically by a searching robot. But in the case of student users, web search tool is much more needed to index by index expert due to the absence of ability about selecting and combining keyword.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.4
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• pp.1946-1952
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• 2014

The purpose of this study is to suggest some improvements of information service on the Internet through a comparative analysis of information use patterns of science and technology researchers in universities, research institutes and business enterprises. We classify information use patterns into information use purpose, information use types, a frequently used/referenced portal site, the initial method of internet search, information service selection factors and the channels of off-line information acquisition. The results of this study are as follows: First, according to frequency analysis, there are some information use patterns among S & T research groups. Second, according to ${\chi}^2$ analysis, there are some significant differences in ratio of information use patterns among them.