• 대한공업교육학회지
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• v.32 no.1
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• pp.117-133
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• 2007

The purpose of this study was to develop the force measuring device of learning wind tunnel, teaching-learning materials in order to enhance understanding of flight principle and give interest about aviation technology in secondary school. The content of this study was consisted of the development and experiment of force measuring device for learning wind tunnel. The main results of this study were as follows: This device developed here is simple structure applying lever principle instead of the comparatively expensive load cell used in engineering college or a aviation research institute and so on. Measurement of lift and drag as well as the comparison experiment of a fluid resistance is possible with only one device developed here. The lift coefficient with angle of attack has shown the same tendency in both of theoretical and experimental values. And the stall phenomenon was found under the larger angle of attack of experimental rather than expected theoretical values. The drag coefficient with angle of attack has shown the same tendency in both of theoretical and experimental values. And drag coefficient the rate of increasement of the experimental values increased more gently than its theoretical values.

• Journal of Advanced Navigation Technology
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• v.18 no.5
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• pp.409-414
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• 2014

Since the five-day workweek has implemented and the spare time increased, the tourist industry has been showing the growth with quality. The tourist industry takes center stage as the twenty-first century higher value-added business on the strength of electronic communication development. Especially as being surrounded by water on three sides and national income has incremented, people have the interest in marine leisure industry. The Ministry of Maritime Affairs and Fisheries carries out a plan to promote marine tourism promotion plan through the significant policy support. Also, they makes an effort to lure the tourist through blending cultures. Therefore, through the 360 degree camera, the activity that mobilizes the policy fund can be monitored rightly and the application strategy that is useful to promote a higher value-added tourist industry can be suggested.

• Journal of Korean Library and Information Science Society
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• v.48 no.3
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• pp.303-331
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• 2017

Local Arts Organization has performed various events in the provinces such as performances, exhibitions, competitions, and festivals, has been a place where local artists share information of arts, and has contributed greately to the development of art culture in the provinces for a long time. Records of Local Arts Organization are historical records showing the level and value of past and present local cultural arts, so systematic management and preservation is necessary. Also, since the records of Local Arts Organization are high in interest and demand of users, exhibition services are needed to show them effectively. Therefore, this study shows how to construct a Local Arts Organization based on CollectiveAccess, which is open software, to manage Local Arts Organization and provide exhibition services.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.14 no.10
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• pp.2324-2330
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• 2010

In middle and high school to learn the principles of fluid mechanics to Experiments in space and time constraints and difficulties for the study of the principles of fluid mechanics to the problem is superficial. In this paper, Pascal's principles, Archimedes' Principle, Bernoulli's Theorem, etc. learning about the fluid mechanics and implemented in Web Browser, In connection with flash and HTML, web simulation is to implement. Web Based Instruction program that implemented a comparative analysis became an effect of 15% to industrial total high school students in satisfaction, Interest, Achievement. The fluid mechanics education through engineering design and web design through the actual web server is implemented on the Internet over broadband. Department of Education, this study the fluid mechanics and the Internet will contribute to the development of distance education.

• The KIPS Transactions:PartB
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• v.15B no.2
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• pp.95-102
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• 2008

The interactive virtual reality technology has used in scientific inquiry learning since it can overcome the restriction of real world and it draws user's interest and foster active participation. However, prior works are mostly designed for a specific inquiry learning lesson and it is quite difficult to use them for constructing other inquiry learning environments. Hence, we developed the integrated virtual reality system, SASILE (System for Augmenting Scientific Inquiry Learning Environments), that helps ease the development of the scientific inquiry learning environment. In this paper, we first describe the related works on supporting VR scientific inquiry learning systems, followed by the SASILE system architecture and implementation. Then, we illustrate the use of this system to develop a Virtual Moyangsung application for teaching a scientific structure of Korean traditional house by exploring and observing the convection currents as well as a Mars Rover application for estimating the asteroid impacts on Mars by measuring rock properties. Finally, we will discuss the future research directions for this system.

• The Journal of the Korea Contents Association
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• v.11 no.4
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• pp.101-111
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• 2011

Due to recent development in wireless communication technologies and mobile information devices, the services on ubiquitous computing technology without time and place restriction have been spotlighted. Moreover, the interest of the Wireless Sensor Networks (WSNs) and context-awareness technologies have largely been escalating and their technologies utilization is active in the various applications such as healthcare, farm management and so on. However, the direct adaption of the existing context-awareness technique to the WSN technology has several drawbacks as follows. First, such systems waste precious energy of sensor nodes, due to unnecessary data transmissions. Secondly, since the existing work was designed to support only specific applications, it is required to implement a new context-awareness application for a specific purpose. Therefore, we, in this paper, propose a new real-time monitoring system based on context-awareness in WSNs. Our system not only enhances energy efficiency by reducing data transmissions by doing context-awareness on a sensor node, but also is scalable in terms of supporting new context-awareness functionalities through modularization.

• The Journal of the Korea Contents Association
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• v.11 no.6
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• pp.438-448
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• 2011

The purpose of this paper is to enrich storytelling contents for culture and tourism industry and provide the implication for carrying out governmental policy by estimating economic value of storytelling using a Contingent Valuation Method. The empirical result shows that the economic value of storytelling development in culture and tourism industry is annually estimated 16,000 won per person, resulting from logit model and WTP mean method. The willingness-to-pay, degree of support and perception of the policy and culture contents expenditure have meaningful effects on probability of supporting and participating in execution of the policy. The findings imply that the economic value of storytelling development highly increases as the interest and expenditure of culture contents increase. Futhermore, informing storytelling related policy and business to the people will increase economic value of fostering storytelling-based culture and tourism.

• Ocean and Polar Research
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• v.38 no.3
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• pp.225-234
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• 2016

This project sought to conduct an economic feasibility study regarding the commercial production of bio-hydrogen by the marine hyperthermophilic archaeon, Thermococcus onnurineus NA1 using carbon monoxide-containing industrial off-gas. We carried out the economic evaluation of the bio-hydrogen production process using the raw material of steel mill by-product gas. The process parameter was as follows: $H_2$ production rate was 5.6 L/L/h; the conversion of carbon monoxide was 60.7%. This project established an evaluation criterion for about 10,000 tonne/year. Inflation factors were considered as 3%. The operating costs were recalculated based on prices in 2014. The total investment required for development was covered 30% by capital and 70% by a loan. The operation cost for the 0.5-year test and integration, and the cost for the first three months in the 50% production period were considered as the working capital in the cost estimation. The costs required for the rental of office space, facilities, and other related costs from the construction through to full-scale production periods were considered as continuing expenses. Materials, energy, waste disposal and other charges were considered as the operating cost of the development system. Depreciation, tax, maintenance and repair, insurance, labor, interest rate charges, general and administrative costs, lubrication and miscellaneous expenses were also calculated. The hydrogen price was set at US$ 4.15/kg for the economic evaluation. As a result, the process was considered to be economical with the payback period of 6.3 years, NPV of 18 billion Won and IRR of 26.7%.

• Journal of the Korean Society of Costume
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• v.56 no.4 s.103
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• pp.33-47
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• 2006

In 21 century, the ubiquitous environment is advanced fast through the so-called digital convergence. This research experts what is the next generation of traditional fashion product purchase behaviors. The purpose of this study is to analyze the fashion product purchase decision making in the development stages of ubiquitous environment. The quantitative Investigation was executed for 487 collegians and the data were analyzed with Frequency, percentage, ANOVA, Duncan test and multiple regression by using SPSS win version 10 package. The results of this research were as followed: First, in the 1st stages of ubiquitous developmental environment, using internet pc or mobile phone was analyze the difference between fashion shopping orientation group and purchase restricted factor Second, as a result of the factor analysis of the ubiquitous 2nd stages, four lower dimensions were made: giving information; wearable effect, buying facility; interest from purchase. as a result of ANOVA, there were any differences between fashion shopping orientation group and ubiquitous 2nd stages. Third, in the 3rd stages of ubiquitous developmental environment, there are differences between fashion shopping orientation group and ubiquitous 3rd stages. And the result from regression analysis of the ubiquitous 2nd stages and 3rd stages showed that buying facility factor in increasing need recognition, wearable effect factor in fashion information acquisition, giving information factor in have a intention to buy in ubiquitous #3 rendition are most influential.

• Fashion & Textile Research Journal
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• v.7 no.6
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• pp.657-664
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• 2005

Man's search for beauty has been going on from prehistoric time until today, and the pursuit of beauty has been progressing, regardless of the times, as a human psychological desire. In the search for beauty, hair and make-up have been subjects of interest for a long time, but the development of designs for these two aspects are still behind compared to other areas. Therefore, this study aims to propose various new and creative hair and make-up designs and to suggest their possible development. Using existing literature, this paper studied the skin color and hair color of Koreans that had been studied in earlier papers. It also aimed to understand the hair color and hair color images that are suitable for each skin color, classify the modern hair and make-up trends into different images - natural, surrealistic, minimalist, and cyber look, and also analyze them. Actual hair and make-up were also designed based on these images. To depict the natural image, the make-up was made intentionally dark as the skin color; natural materials were used for hair decoration; brown and yellow were used for the eye shadow to express the natural and romantic image of autumn, in general. Second, in the work expressing the surrealistic image, the hair was creatively decorated with a collage of various objects; yellow, green, and red eye shadows and lip expression were used to visually achieve the surrealistic fantasy look. Thirdly, in the work expressing the minimalist image, hair style with bangs without any hair decoration was used; make-up colors were minimized as well, creating a generally simple image. Finally, for the work expressing the cyber image, metallic material decoration was used on a puff-up hair style; the cyber image was emphasized through the use of graphical elements in the make-up.