• Journal of the Korea Safety Management & Science
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• v.15 no.4
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• pp.63-72
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• 2013

Recent trends in rail industry can be characterized by the multifunctionality and very high-speed modes of operations. In particular, the adoption of the unmaned or operatorless operations has been getting increased attention in which case ensuring systems safety is crucial. On the other hand, according to the result of analyzing rail accidents, the human/operator errors have turned out to be one of the key causes of the accidents. Therefore, the effort of improving the work environment of locomotive cabs is quite necessary in order to decrease the accidents. The objective of this paper is studying on how to incorporate the factors related to the train operators in the design of the locomotive cabs and also on how to evaluate the design results obtained, which is subsequently reflected in the generation of the test and evaluation procedure. The approach taken is based on systems engineering, yielding the procedure document as a result. The results obtained in the paper can be useful in confirming the design of locomotive cabs utilizing the domestic human/operator measure. Also, the way of achieving the objectives can be utilized to cover the expanded rail systems development with appropriate design activities added.

• Journal of The Korean Association of Information Education
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• v.6 no.2
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• pp.154-162
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• 2002

In a small-scale class, children gradually lose interests in studying and develop negative and passive attitudes in class activities due to the uniform education. Although many cooperative instruction WBI models are studied and designed, there has not been any research on cooperative instruction model appropriate for a small-scale class. In this study, instructors participate in classes, each in connection with other small-scale classes, and WWW based cooperative instruction model, WIEZ, which can affect students' learning attitude on long-term basis, was designed and embodied. Currently, WIEZ is being under experimental test in three schools at Kyung-nam where instructors design classes, and students divided into groups participate in classes in this system.

• Journal of Korean Academy of Nursing
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• v.35 no.6
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• pp.1113-1124
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• 2005

Purpose: The purpose of this study was to develop an e-Learning program about medication for nurses to enhance nurses' medication performance ability and to analyze learners' responses after studying with this program. Method: For the development of the e-Learning program, the NBISD(Network Based Instructional Systems Design) model, suggested by Jung(I999) was applied as a basic model and the instruction design theory of Gagne & Briggs(1979) and ARCS theory of Keller(I983) were applied. After the operation of this program for one month to 34 new nurses, learners' responses were analyzed. Result: Learners' knowledge of medication was greatly improved after this program. In addition learners' satisfaction with the overall education program, help in field applicability, ease of screen shift and exploration, and tutor activities were high and the contents were regarded suitable for e-Learning. Many things were advantageous such as easy accessibility, easy understandability with pictures and flash animation, practical cases and feedback from a tutor. Provision of a supplementary handout and improvement of a tight time schedule were pointed out as things to be improved. Conclusion: This e-Learning program can be used effectively for medication education for registered nurses, student nurses, and new nurses.

• Proceedings of the Korea Contents Association Conference
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• 2006.11a
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• pp.860-864
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• 2006

Various kinds of digital contents developers are recognizing the importance of interface design, but they have no integrated and arranged interface design principles, so are facing difficulties in applying them. About the interface of web-site which is one field of the digital contents, there came out necessary principles about the interface design to some extent by the active studying activities in and out of the country. However, the researchers are proposing various principles, so it is difficult to apply which design principle in what situation. To this, this study looks into the common design principles while comparing and analyzing the design principles of Donald A. Norman, Jakob Nielson, Jeff Johnson and Manna Sjoberg. Based on this, we suggest 10 interface design principles to improve the functionality and aesthetics of the digital contents.

• Biomedical Science Letters
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• v.18 no.2
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• pp.175-179
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• 2012

It is desirable that a wound healing membrane acts as a barrier for coverage of a damaged skin and has the biological activities such as anti-inflammatory effects. In this study, we prepared the hydrogel film containing the propolis nanoparticles as a wound healing membrane. The propolis nanoparticles were prepared by incorporation of propolis into the hydrophobic core of ${\gamma}$-cyclodextrin. The incorporation efficiency of propolis in the nanoparticles was $50{\pm}2.3%$. Propolis nanoparticles observed by a scanning electron microscope (SEM) were spherical with the size of 30~40 nm. The swelling behaviors of the hydrogel film containing propolis nanoparticles showed a similar pattern with the hydrogel film without propolis nanoparticles. The cumulative amount of propolis released from the hydrogel film containing propolis nanoparticles in the buffer of pH 7.4 and 5.5 was $86.0{\pm}2.0%$ and $64.6{\pm}1.0%$ of total propolis loaded in the hydrogel film within 9 h, respectively. These results provide a rationale for studying wound healing application of the hydrogel film containing propolis nanoparticles in a clinical setting.

• Proceedings of the Acoustical Society of Korea Conference
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• spring
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• pp.235-239
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• 2004

Sound transmission either as airborne or structure borne is a potential problem that occurs in buildings either from sources within or from outside. With the expansion of real estate activities in countries like India, the need to attend sound insulation requirements also assumes greater dimensions. The focus of this research is on studying the sound transmission characteristics of building structures made of hollow blocks, neocrete block, aerocon block and prefabricated panels such as Ferrocement panel. The tests were carried out the blocks with and without plastering and their sound reduction index was measured at one-third octave frequencies. In the case of ferrocement panels, different types of systems were tested in the TL suite. Panels with cavity, with cavity ties, with insulation, with stiffeners and with plasterboard were investigated. Sound reduction index of these panels was measured with additional quantities like longitudinal wavespeed, and loss factors (internal and total loss factor). Tests were also conducted on Cypcrete wall panel and Sandwiched wooden panel in a similar way. Theoretical investigations were carried out using Statistical Energy Analysis (SEA) for the above systems. Sound reduction index was then compared between the predicted and the measured values.

• Journal of Gifted/Talented Education
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• v.8 no.2
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• pp.175-191
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• 1998

The purpose and content of Chonnam National University Center for Science Talented Education program and students' responses were described. The program was developed with the purpose of providing various learning opportunities for science talented students according to the level of their learning abilities. Students are given a variety of activities based on their potentials and interest. The program was developed in four subjects, such as mathematics, information science, science Ⅰ (physics and earth science), and science Ⅱ (biology and chemistry). Each subject consisted of simple inquiry, advanced one, and project, even though it had its own distinctions. Students were selected for each subject based on two criteria, that is, achievements in school science or mathematics (the upper 3 percent of the 8th grade students) and examination scores. Means and standard deviations for each subject were as follows: 51.8 and 13.3 for Science Ⅰ, 53.1 and 13.9 for Science Ⅱ, 36.7 and 10.7 for mathematics and 36.4 and 12.5 for information science. Thirty hours of summer classes were performed, and a survey was administered to obtain students' responses concerning difficulty, interest, teaching and content of the program. They gave relatively favourable responses in most area, but lack of time for studying was revealed in mathematics and information science. Further study in needed to get detailed and more accurate results of our program.

• Korean Institute of Interior Design Journal
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• v.16 no.2 s.61
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• pp.105-114
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• 2007

As a result of imminent recognition on nature from modern world, the need for the combination between architecture and nature has been raised as another topic in architectural arena, and this kind of work is being conducted under the notion of Landscape. As the term 'Landscape' emerges as the key word in contemporary architecture, 'Landscape' begins to transcend the mere meaning of landscape architecture(gardening). The word, Landscape, has gone beyond the meaning of mere landscape, or rural vista one-dimensionally, and, after having introduced the attributes of nature into building activities, has emerged as a notion trying to form 'the architecture as landscape.' Together with these, 'Landscape' is expanding as a notion having various layers. The notion's, 'Landscape', occupying the significant position in contemporary architecture has been a recent phenomenon over 1980-1990s, and its category of practice has not certain limitation, rather it has started simultaneously from various areas. This study, before reviewing the architectural notion of Landscape by studying the Landscape notion and its various embodying methods being shown in contemporary architecture. As a result of examining the features of Landscape notion shown in various directions(ways), being influenced by the four Landscape types presented by Eduard Bru and the currents of the times, we can see that, though the features are somewhat similar, they are classified and explained as different types respectively. So, we are able to recategorize the features into 6 domains in this study.

• Korean Institute of Interior Design Journal
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• v.18 no.2
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• pp.71-79
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• 2009

It is the youth period that the personality is shaping gradually. The residential environments have influence on the young ego. Especially residential design should include more youth friendly design elements than any other facilities. The purpose of this study was to provide the youth friendly design elements about the space design of apartment through analysis of youth's needs. This study was progressed to the survey method about five districts of apartment design competitions in 2007. The collected cases are analyzed by using statistics software SPSS for windows release 11.0. The result of the study was as below. First, the youth satisfaction of current residential space got more satisfied as floor space got larger. Second, most of youth uses them own room that is satisfied with their floor space for sleeping, inviting friends, studying, playing activities. Third, generally youth preferred to place their own room not far from the restroom, but the result of distance between master room and entrance was classified depend on sex, personal inclination, and residence environment, also generally satisfied with volume of their room. Fourth, for the restroom, although it is too small that satisfied with bath facilities relatively. And cast, youth's preferred room for extra was 'movie/music room', 'game room' and 'dress room' which is higher preference than 'study room'.

• Journal of Nutrition and Health
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• v.31 no.4
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• pp.679-686
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• 1998

This study was performed to determine whether the infusion of nucleosides and a nucleotide mixture directly ito intestinal lumen can induce a regenerative effect on impaired intestinal mucosa. The effects of massive small bowel resention and also total parenteral nutrition were induced by surgical creation of Thirty-Vella fistual in male Sprague-Dawley rats. The rats received saline solution (Control group) or nucleosides and a nucleotide mixture(lower concentration group(Nucl) or higher concentration group (Nuc2) every two days into the fistula. Mucosal protein, DNA , ornithine decarboxylase(ODC) activity, and morphometry were evaluated at 9 or 21 days postoperation in the fistual and also in the residual ileal segment. On the 9th day, mucosal protein, DNA content, and villous surface area in the fistula and also in the residual ileum increased in rats that received nucleosides and a nucleotide mixture of lower concentration (Nuc 1). On the 21 th day, there were no significant differences in intestinal mucosa between the control group and the lower level nucleoside nucleotide mixture-treated group. The fistula villous height of the higher nucleosides and a nucleotide mixture group was higher than in the control rats. Fistula mucosal ODC activities were not significantly different between groups although the mucosal ODC activity of the residual ileal segment was increased on the 9th day. Our data suggests that this animal model is suitable for studying the effect of dietary factors on intestinal mucosal growth and regeneration after villous stropy , differentiating direct effects of diet on the intestine from systemic effects. It is also suggested that external nucleosides and nucleotides have supportive effects on intestinal mucosal regeneration.