• Journal of the Korea Institute of Information and Communication Engineering
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• v.10 no.6
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• pp.1119-1123
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• 2006

Wireless sensor network plays a prominent role in tracking the location of the target outdoor or indoor. This paper describes the implementation of the passive indoor location tracking system using ultrasonic and RF technologies that provides accurate location in the form of user space and position in three dimensions. Our system used a combination of RF and ultrasonic technologies to provide a location-support service to users and applicants. Ceiling-mounted beacons were spread through the building, publishing location information on an RF signal. The person carried a listener and the listener determined the location by calculating the distance from three beacons using triangulation algorithm.

• 보존과학연구
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• s.32
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• pp.185-193
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• 2011

The Wallace Collection in London (one of the national museums in the UK) has a gallery dedicated to conservation related displays. As well as permanent displays on the manufacturing techniques and materials of artifacts, there is a specially designed space for temporary conservation exhibitions. Through the example of the current conservation exhibition at the Wallace Collection and similar exhibitions and displays from other museums in the UK, this paper will study how the relationship and communication between the conservation profession and the general public have changed, from conservation as a behind-the-scenes and little-known activity to a closer interaction with the public and as a direct educational tool. The general function of a museum can be seen to have evolved from providing passive information to its visitors to offering more active and various forms of education. Conservation has developed with this change towards more awareness of the profession and its role in the preservation of cultural heritage through public outreach programs and displays.

• Journal of Advanced Marine Engineering and Technology
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• v.29 no.3
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• pp.306-312
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• 2005

IMO $NO_x$ levels are generally possible to meet by means of primary on-engine measures. Further significant follow-on reductions are likely to require a secondary after-treatment technique. SCR(Selective Catalytic Reduction) technology is used almost exclusively for $NO_x$ removal in stationary combustion systems. In order to develop a practical SCR system for marine application on board ship, a primary SCR system using urea was made. The SCR system was set up on the ship, 'HANNARA' as a test vessel. employed a two-stroke cycle diesel engine as main propulsion, which is a training ship of Korea Maritime University. The purpose of this paper is to report the results about the basic effects of the below system parameters, The degree of $NO_x$ removal depends on some parameters, such as the amount of urea solution added, space velocity, reaction gas temperature and activity of catalyst.

• Journal of Radiation Industry
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• v.9 no.4
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• pp.167-170
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• 2015

Radioisotope (Nuclear) battery using $^{63}Ni$ was prepared as beta cell. The electroplated $^{63}Ni$ on Ni foil is fabricated, and beta cell and photovoltaic hybrid battery was designed to use at both day and night in space project. A Ni-plating solution is prepared by dissolving metal particles including $^{62}Ni$ and $^{63}Ni$ from neutron irradiation of ($n,{\gamma}$). Electroplating solution of a chloride bath consists on nickel ions in HCl, $H_3BO_3$, and KOH. The deposition was carried out at current density of $10mA\;cm^{-2}$. The prepared beta source was attached on a PN junction and measured I-V properties. The power output at activity of 0.07 mCi and 0.45 mCi were 0.55 pW and 2.69 nW, respectively.

• Journal of KIBIM
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• v.9 no.2
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• pp.1-10
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• 2019

In this research, schedule optimization is defined as balancing the number of workers while keeping the demand and needs of the project resources, creating the perfect schedule for each activity. Therefore, when one optimizes a schedule, multiple potentials of schedule changes are assessed to get an instant view of changes that avoid any over and under staffing while maximizing productivity levels for the available labor cost. Optimizing the number of workers in the scheduling process is not a simple task since it usually involves many different factors to be considered such as the development of quantity take-offs, cost estimating, scheduling, direct/indirect costs, and borrowing costs in cash flow while each factor affecting the others simultaneously. That is why the optimization process usually requires complex computational simulations/modeling. This research attempts to find an optimal selection of daily maximum workers in a project while considering the impacts of other factors at the same time through OPEN BIM based multiple computer simulations in resource leveling. This paper integrates several different processes such as quantity take-offs, cost estimating, and scheduling processes through computer aided simulations and prediction in generating/comparing different outcomes of each process. To achieve interoperability among different simulation processes, this research utilized data exchanges supported by building SMART-IFC effort in automating the data extraction and retrieval. Numerous computer simulations were run, which included necessary aspects of construction scheduling, to produce sufficient alternatives for a given project.

• Research in Community and Public Health Nursing
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• v.32 no.3
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• pp.382-395
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• 2021

Purpose: The purpose of this qualitative study was to explore the transition experiences of the elderly from long-term care hospitals to their homes. Methods: The participants were eight elderly medicaid beneficiaries, who had been the subjects from the community care project in Korea. The data were collected with one-on-one interviews from April to November in 2020, and analyzed by phenomenological steps. Results: The seven themes derived in this study were 'Space to escape', 'Reliable supporter opened the way to discharge', 'Comfortable life at home', 'Obstacles to independent life', 'Struggling to live alone', 'Fence for community life', and 'Energizing in daily life' Conclusion: The results revealed the positive aspects of Community Care program in Korea. However, it is suggested that active communication between hospitals and community care institutions, and improvement of home environment to live in the community before discharge should be required. And system revision is needed to adjust activity in their home and support health problems of the elderly in the early stage of discharge. The results of this study can be referred to as the foundation of transitional care for the elderly.

• International Journal of Computer Science & Network Security
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• v.21 no.12
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• pp.61-64
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• 2021

The work is devoted to the problem of modernization of the higher education system of Ukraine through the integration of higher education institutions into the European Higher Education Area. Based on the analysis of statistical data, a conclusion was made about the collapse of the higher education system of Ukraine due to a number of problems, which negatively affects the formation of human capital. The importance of international cooperation with the EU in the field of education for the modernization of higher education is substantiated. The institutional principles of formation are investigated, the main priorities of its development at the present stage are determined. The legal bases of European integration of higher education in Ukraine are analyzed. An analysis of the development of international cooperation of Ukrainian universities and their participation in European educational programs. There is a positive tendency to increase the activity of Ukrainian universities in international cooperation, which increases their position in international rankings. Weaknesses of integration processes are revealed and directions of improvement of higher education are offered.

• Journal of Korean Elementary Science Education
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• v.38 no.1
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• pp.87-101
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• 2019

The purpose of this study was to investigate elementary school teachers' perception and the status of education program on science museum field trips by using a questionnaire (188 teachers) and interview (6 teachers). The results of the research are as follows. First, factors influencing elementary school teachers who choose the science museum as a place for field trips were 'student's interest', 'teacher's own experience related to the science museum', 'science curriculum', 'suggestions from a fellow teacher', 'space available for field work' and so on. Second, 82% of the respondents conducted pre-education program, but they mainly conducted safety education. Third, the teacher conducted post-education program less than pre-education program. In the post-education program, the most activities were to express and share knowledge and experience gained from the science museum. Fourth, 52.2% of the teachers provided tasks or activity sheets during science museum field trips. Fifth, the teachers mainly served as safety guide. In addition, the teachers thought that safety guide was the most important role of teacher in science museum field trips. Sixth, the teachers thought that the method of viewing the science museum's collection, which emphasizes the role of docent rather than the teacher, was more educational.

• Journal of Korean Society for Quality Management
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• v.46 no.4
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• pp.1015-1028
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• 2018

Purpose: This study attempts to find how the cultural marketing activities utilizing cultural space affect firm's brand image and brand loyalty, and whether this culture marketing technique is recognized as a social contribution activity by potential customers and thereby influence brand image and loyalty. Methods: The data was collected by using the structured questionnaires to consumers who have experience using the Naver Library, Starfield Library, and Hyundai Card Library. The proposed research model is tested using 178 valid questionnaires using Smart PLS 2.0. Results: This research indicated that among cultural marketing factors, cultural support and cultural promotion have little impact on brand image, whereas culture firm influence brand image. Brand image also had an impact on brand loyalty, but it was found that public libraries operated by companies were not recognized as corporate social contribution activities, nor did they have an impact on the formation of the company's brand image. Conclusions: The study offered a theoretical and empirical foundation for future research by empirically identifying the relationship between cultural marketing and brand image and loyalty and confirmed the coordinating effect of social contribution activities between a cultural firm and its brand image.

• The Bulletin of The Korean Astronomical Society
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• v.44 no.1
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• pp.77.1-77.1
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• 2019

It has been proposed by Gunn & Gott (1972) that galaxies may lose their interstellar gas by ram pressure due to the dense intra-cluster medium while falling to the cluster potential. The observational evidence for this process, which is known as ram pressure stripping, is increasing, and it is believed to be one of the key environmental effects that can dramatically change the star formation activity of galaxies and hence their evolution. Intriguingly however, some cases with clear signs of ram pressure stripping are found in the environment which betrays our expectations (e.g. large clustercentric distances), and our understandings to the detailed working principle behind ram pressure stripping seem to be still lacking. As one of the ways to gain more theoretical insights into the conditions for ram pressure stripping process, we have been comparing the gas truncation radius which is predicted based on the simple Gunn & Gott's prescription with what is actually observed in a sample of carefully selected Virgo galaxies. In this work, we present the results of our comparisons between the theoretically predicted truncation radius and the observationally measured truncation radius for individual galaxies in the sample and discuss which additional conditions are needed in order to fully understand the observations.