• Journal of Korean Library and Information Science Society
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• v.42 no.1
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• pp.417-440
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• 2011

Public libraries face various changes and challenges in the knowledge society of the 21st century. The necessity of introducing 'marketing' concept into the management of public libraries is increasing. This study focuses on 'Family Place Library' program among the children services of public libraries in the United States. 'Family Place Library' is the library program for the youngest children and families, which has been spread over 300 public libraries of USA until February, 2011. The researcher did participation observation and in-depth interview at the libraries which are the main cases for 'Family Place Libraries' in New York, USA. And the researcher analysed the content of the program and did in-depth interviews with related professionals in and out of libraries over many states of USA. Based on the results of this study, the researcher suggested marketing strategies for the management of public libraries.

• Journal of Advanced Navigation Technology
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• v.19 no.6
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• pp.507-514
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• 2015

The Spatial information research institute of the LX Korea land and geospatial informatix corporation manages infrastructure for the LX global navigation satellite system (GNSS), which comprises 30 monitoring stations nationwide. Since 2014, it has conducted network real-time kinematic (RTK) tests using the master-auxiliary concept (MAC). This study introduces the infrastructure of LX GNSS and presents the results of a performance analysis of the LX RTK service. The analysis was based on a total of 25 cadastral topographic control points in Jeonju, Seoul, and Incheon. For each point, performance was measured over one observation, two repeated observations, and five repeated observations. The measurements obtained from LX MAC and the VRS of the National Geographic Information Institute were compared with the announced coordinates derived from cadastral topographic control points. As a result, the two systems were found to have similar performance with average error and standard deviation differing only by 1 to 2 cm.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.2
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• pp.759-767
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• 2013

This study analysed Emergency Medical Technology(EMT) students' satisfaction in clinical practice. It was discovered that satisfaction was a means of 3.61(${\pm}0.70$) and the factor which had a significant influence on satisfaction was desired job area (F=3.98, p=0.004). The factors which were significant to satisfaction were practice beginning grade(t=0.43, p=0.038), period of practice(F=2.82, p=0.025), and departments(F=11.81, p=0.000) In respect to significant positive correlations between practice procedures and satisfaction, observation frequency (r=0.221, p=0.000) and practice frequency(r=0.170, p=0.002) had significantly positive correlations with satisfaction. Based on the results above, it is suggested that to enhance EMT students' satisfaction in clinical practice, students should have clear points of view on their job and practice beginning grade and practice period should be properly considered according to characteristics of students. Also, effective practice programs which carefully consider peculiarity of Emergency Medical Technology should be developed further.

• The KIPS Transactions:PartA
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• v.10A no.6
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• pp.757-768
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• 2003

Recently, the renewable energy resources play an important role as an energy resources of future due to an environmental pollution and lack of resources and so on. The development and diffusion of information systems related to renewable energy resources have been driven actively abroad. However, at domestic an efficient history management for renewable energy resource data and web retrieve service are not provided. Therefore, in this paper, we propose a history data management system for the renewable energy resources, which stores and manages vast history information of renewable energy resource data systematically. This system collects renewable energy resource data in the outside observation system and stores them in the history database. The stored Information is retrieved through the history query process and can be provided in various forms - table, graph, chart and counter line, etc. - on the internet. Especially, the proposed system manages the history data in real-time so the latest information is always provided to the users through the web interface.

• Korean Journal of Agricultural and Forest Meteorology
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• v.13 no.2
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• pp.79-86
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• 2011

Cold-air drainage and pooling occur in most mountain valleys at night. Local climates with cold-air pooling could affect phenology and distribution of crop plants. A high resolution infrared imaging radiometer was used to visualize the cold-air drainage and thermal belt formation over a small mountainous watershed (ca. $10{\times}5{\times}1$ km for the maximum length${\times}$width${\times}$depth). Thermal images on $640{\times}480$ pixels were scanned across the Akyang valley (south of Mt. Jiri National Park) by the radiometer installed at a local peak ('Hyongjebong', 1,117 m a.s.l.) at dawn of 17 May 2011, when the synoptic condition was favorable for the surface cooling and cold-air drainage. Major findings are: (1) Cold-air drainage and accumulation was clearly identified by the lowest brightness temperature mainly at the valley bottom. (2) So-called 'thermal belt' with higher brightness temperature was found partway up the valley sidewalls and showed up to $5^{\circ}C$ departure from the valley bottom temperature. (3) Digital thermography showed feasibility for validation of the high definition geospatial temperature models currently in use for the plot-specific agrometeorological service.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.6
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• pp.3648-3657
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• 2014

This study aims to enhance child care teachers' ability to offer health care by developing an educational program for children's health care and safety. This study was carried out using a one-group pretest-posttest design based on a survey of 400 child care teachers in 3 cities. The educational program for child care teachers consisted of three parts: child health observations, disease management for child and emergency care for children. The educational program was conducted 3 times for 3 hours, totaling 9 hours. The educational program showed better grades of child care teachers in child health observation, emergency care for children, and disease management for children. The finding indicates that more child care teachers will adopt a health care education program to improve the quality of child care service.

• Journal of Advanced Navigation Technology
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• v.24 no.2
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• pp.61-66
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• 2020

Since the ocean accounts for 70.8 percent of the earth's surface, the success of IoT technology in the marine industry is to collect information from devices placed in a wider range. LPWA is a feature with a wide range of communication and is very suitable for deployment in the ocean. In this paper, the real-sea performance distance experiment was carried out based on Private LoRa, a key technology for executing the electronic phrase real-name system. A private LoRa module based on sx1276 was developed, and Gateway was developed to transfer data received by private LoRa to the server using SKT Cat. M1. After installing gateways at 599 meters above sea level and experimenting with data transmission and reception at 25 km, 40 km and 60 km, we were able to see that the communication success rate was obtained to be 96.1%. 97.1% and 96.2% respectively.

• Journal of Satellite, Information and Communications
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• v.11 no.4
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• pp.10-14
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• 2016

Korean satellite development projects were divided military objectives such as national security, and commercial communication satellites. The First geostationary Korean earth observation satellite, GeoKOMPSAT is a turning point to concern another way to utilizing satellite. In the past, the main concern was the sharp ground images, now days, it is more important to make high added value from satellite data. In particular, environmental payload, GEMS mounted on the satellite GeoKOMPSAT-2 will monitor air quality which is not observed by visual material, may be referred to as case by utilizing the satellite. Satellite data utilization is likely to receive a great influence on the appropriate public policy data. If the public is expected to be fully revealed that potential demand. It is time to change the management policy on the security aspects of weak satellite data. Depending on the expanding use of satellites, it is necessary to investigate the status of disclosing satellite data, and suggests policy options for the distribution of materials for the environment satellite characteristics.

• Korean Journal of Social Welfare
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• v.60 no.4
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• pp.131-156
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• 2008

The purpose of this study was to understand the daily life of the residents in Jjok-bang. To achieve this purpose, I conducted an ethnographic approach. I contacted the residents in Jjok-bang, collected data from an in-depth interview, participative observation, documents, and analysed data by an ethnographic approach. In research findings, I presented four dimensions of the daily life: subject, place, time, way of life. Subjects were categorized as 'I', 'We', and 'They'. I investigated the residents' places that were categorized as three places such as Jjok-bang, a Jjok-bang region, and a Jjok-bang service center. I identified the residents' experiences in time of the past, the present, and the future. In addition, I gained a deep understanding of their way of life which was divided to survival, living, and life. Based on the results, I offer suggestions for policy, administration, practice, and further researches.

• Journal of the Korean Institute of Intelligent Systems
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• v.14 no.2
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• pp.142-149
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• 2004

It is important to retrieve exact information coinciding with user's need from lots of Usenet news and filter desired information quickly. Differently from email system, we must previously register our interesting news group if we want to get the news information. However, it is not easy for a novice to decide which news group is relevant to his or her interests. In this work, we present a service classifying user preferred news groups among various news groups by the use of Kohonen network. We first extract candidate terms from example documents and then choose a number of representative keywords to be used in Kohonen network from them through fuzzy inference. From the observation of training patterns, we could find the sparsity problem that lots of keywords in training patterns are empty. Thus, a new method to train neural network through reduction of unnecessary dimensions by the statistical coefficient of determination is proposed in this paper. Experimental results show that the proposed method is superior to the method using every dimension in terms of cluster overlap defined by using within cluster distance and between cluster distance.