• Proceedings of the IEEK Conference
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• 1999.06a
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• pp.757-760
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• 1999

Depending upon the existence of the battery, transponder is divided into active and passive transponder. The passive transponder operates without battery and so has no limitation in its operating range and life time. But it needs the RF-DC conversion circuit. In this paper, the analysis and design of the RF-DC conversion circuit in passive transponder operated in high frequency is presented and is confirmed by simulation and experiment.

• Journal of the Korean Society for information Management
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• v.31 no.1
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• pp.207-230
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• 2014

This study aims to explore measures to help establish a management direction and policies of local public libraries based on local residents' needs for library services based on the community characteristics. To that end, a community survey was conducted focusing on eight urbans (gus) and two rural districts (guns) in Incheon Metropolitan City. The districts were categorized into three types, original urban center (Area 1), new urban center (Area 2), and urban-rural complex (Area 3). The residents in each type were analyzed in terms of library use, awareness, needs, and satisfaction. In terms of library use, awareness, and satisfaction;we identified differences among the area types. This paper suggested management directions of local public libraries based on the community characteristics.

• Journal of Korean Society of Archives and Records Management
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• v.18 no.3
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• pp.165-191
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• 2018

The National Archives of Korea and other archives now provide services through social media such as Facebook or Twitter, and use such platforms to interact with users. To be specific, users communicate with and get information from these archives via the National Sinmoongo, the place for civil petition. Therefore, it is significant to understand the users' needs and the contents of the communication by analyzing the comments and petitions that have appeared in these channels. For this, this study analyzed users' perceptions and information needs shared through social media and the National Sinmoongo of the National Archives of Korea. The social media content analyzed here were posts and comments from the Facebook accounts of the National Archives of Korea, e-Record, the Busan Archives, and the Presidential Archives of Korea. Also, sentences containing the words "National Archives of Korea" and "Presidential Archives of Korea" that have appeared in texts in the National Sinmoongo were analyzed. Based on the analysis results, suggestions that could activate the user-centered archival information services in the archives and records centers were made.

• Journal of the Korean Society for information Management
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• v.39 no.1
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• pp.351-374
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• 2022

The purposes of this study include i) to understand the circumstances of exposure to information during foreign refugees' stay in South Korea, ii) to investigate their information needs and the use of information sources, and iii) to propose the change needed in the Korean society, the role of South Korea in the global community, and the service direction of libraries and information professionals. To this end, legally recognized refugees who have stayed in South Korea were recruited for semi-structured in-depth interviews and observations on their perception, situation, and active behavior. The discussions were transcribed for coding. The codes were analyzed by content analysis technics based on relevant previous studies and factors of Dervin's Sense-making theory and Chatman's Information Poverty theory. Based on these analyses, this study proposed strategies for foreign refugees and individuals and public organizations, including libraries and NGOs, from an information service perspective. It is expected that the proposed strategies will supplement related empirical quantitative research and add value to information services for solving information problems.

• Journal of Korean Library and Information Science Society
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• v.34 no.1
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• pp.351-378
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• 2003

This study has been examined in information service in related aspect of its user. Also this subject is researching of information itself attribution and relationship with end user And, in information facilities of library and information center it has been studied how to develope satisfaction service for user, along with fur causing both theory and practical application. For this object it has been also reviewed theoretically through out 5 fields as below; 1) information need and using 2) information storage and retrieval 3) information property and value 4) bibliometrics and citation analysis 5) administration and management.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.28 no.3
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• pp.67-93
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• 2017

This study aims to investigate research trends on disaster safety Information based on the language network analysis methods. To accomplish it, we collected 312 Korean thesis and scholarly articles on disaster safety information published between 2008 and 2017 from RISS (Research Information Sharing Service) site. With the collected data, this study performed the statistical analysis based on bibliographic data. Also, this study performed the analysis of frequency and language network on keyword extracted from titles on the collected scholarly articles and thesis. This study found out that researches recently on Bigdata related to disaster safety information have been rapidly increased. Also, the needs of sharing and utilizing disaster safety information have increased. Also the various types of disaster safety information such as spatial data, real-time information, geographic information has been used for the disaster response.

• Journal of Families and Better Life
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• v.21 no.3
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• pp.75-85
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• 2003

This study is aimed at sowing two purposes. The first is to analyze the real condition and demand of profession development from the human ecology majors. The second is to develop necessary methods in which ordinary people can collect necessary information about family life. Related questionnaire was distributed to 147 the human ecology majors, and analysis was performed on the several web sites providing with information related to family life. Web sites such as“www.yahoo.com”and“www.naver.com”were included in the analysis. Questionnaire consisted of questions about whether the students majoring in the human ecology were familiar with the information-related terms or futuristics-related books, and whether they have ever taken the related courses in college. The results of analysis are as follows: First, analysis shows that the present level of the human ecology majors' information orientation and networking experiences is extremely low. Secondly, according to the analysis on whether they have optimistic or pessimistic attitude toward the contemporay informatized society, the human ecology majors have rather optimistic attitude in group while having pessimistic one individually. As to their response to the question about whether informatized society is connected with industrial society or not, the human ecology majors are divided in neatly equal ratio. Thirdly, analysis of the human ecology majors' understanding of profession relevant to their major indicates that they have high level of perception and information about the professions of fashion designing, traditional garment designing, nutrition counselling or consumer counselling. On the other hand, they are not familiar with the information about professions such as professional QR Programming, eating habit-related information business and family welfare. Lastly, level of web sites supplying information about family life is fragmentary. Especially, probe into the directories providing with necessary information of family life subdivided into special areal of life shows that they lack systematic organization making more convenient consumer use.

• Proceedings of the Korean Society of Agricultural Engineers Conference
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• 2003.10a
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• pp.507-510
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• 2003

The development of a basin-wide runoff analysis model is to analysis monthly and daily hydrologic runoff components including surface runoff, subsurface runoff, return flow, etc. at key operation station in the targeted basin. A short-term water demand forecasting technology will be developed taking into account the patterns of municipal, industrial and agricultural water uses. For the development and utilization of runoff analysis model, relevant basin information including historical precipitation and river water stage data, geophysical basin characteristics, and water intake and consumptions needs to be collected and stored into the hydrologic database of Integrated Real-time Water Information System. The well-known SSARR model was selected for the basis of continuous daily runoff model for forecasting short and long-term natural flows.

• Journal of information and communication convergence engineering
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• v.16 no.1
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• pp.48-51
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• 2018

The traditional documents analysis was centered on words based system was implemented using a morpheme analyzer. These traditional systems can classify used words in the document but, cannot help to user's document understanding or analysis. In this problem solved, System needs extract for most valuable paragraphs what can help to user understanding documents. In this paper, we propose system extracts paragraphs of normalized XML document. User insert to system what filename when wants for analyze XML document. Then, system is search for keyword of the document. And system shows results searched keyword. When user choice and inserts keyword for user wants then, extracting for paragraph including keyword. After extracting paragraph, system operating maintenance paragraph sequence and check duplication. If exist duplication then, system deletes paragraph of duplication. And system informs result to user what counting each keyword frequency and weight to user, sorted paragraphs.

• Journal of Environmental Impact Assessment
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• v.22 no.5
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• pp.525-528
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• 2013

River otter(Lutra lutra) are listed as endangered species and Natural monument in Korea, and this study examined the possibility of extinct of river otter in Hongchon river using with the application of Population Viability Analysis (PVA) technique. In Hongchon river areas population was estimated 9 individuals for the last 1999-2005 years and PVA analysis was done for the next 10 years using the average population of 9. Using the initial population the river otter was estimated 30% of extinct for the next 10 years. This estimation was quite low considering water pollution and construction of highways. Also PVA only used population size lacking in other life history information. Nonetheless river otter population can be in risk of extinction if the current construction of crossovers, cement bank are maintained. Long term information regarding life history needs essential.