• Journal of the military operations research society of Korea
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• v.12 no.1
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• pp.16-37
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• 1986

This paper first examines the importance of SLOC from the Korean standpoint, second conducts general survey for SLOC protection strategies of four major powers, US, USSR, China and Japan, third analyzes the surrounding sea lane environments, and finally derives optimum protection strategy for ROK SLOC, a 'life line'.

• Proceedings of the International Union of Geodesy And Geophysics Korea Journal of Geophysical Research Conference
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• 2003.05a
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• pp.15-15
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• 2003

The first crustal refraction survey in the Korean Peninsula was carried out over the survey line connecting Seosan-Yeongdong-Kyeongiu on Dec. 15, 2002. The total length of the survey line was about 300 Km and 198 portable seismometers were deployed with approximately 1.5-km interval. The survey line itself was geologically important since it was almost normal to the so-called Sino-Korean structural trend. Two shots, one at Seosan (west end point) and the other at Yeongdong (mid-point), were exploded. They were 100-m deep drill well explosions. The Seosan shot consisted of a ton emulsion type explosive, while Youngdong consisted of 500 kg one. Both shots generated signals with good S/N ratios to the farthest receivers. Seismic signals were recorded by 195 receivers out of 198 ones. Although the originally planned Kyeongju shot (east end point) could not be exploded due to public discontent, the experiment was evaluated very successful. First breaks in all recorded traces were picked up and two preliminary analyses were carried out. The one is conventional flat layer analysis and the other was refraction tomographic analysis. The one resulted in average 32-km thick two-layer crust and the underlying mantle with 8.05-km/s P-velocity. The top crust layer with 3.86 kw/s P-velocity was 2.5-km thick and the lower crust layer with 6.0l km/s P-velocity was 29.5-km thick. The other resulted in a velocity cross-section. The confidence level of the velocity cross-section could not be evaluated at this time because only two shot were exploded. Detailed analyses such as surface wave dispersion are on going. Continuing crustal scale refraction surveys are planned in Korea.

• Journal of the Korea Convergence Society
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• v.10 no.7
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• pp.411-419
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• 2019

The purpose of this study is to examine nursing students' satisfaction and to analyze satisfaction difference according to the general characteristics of the research subjects in blended learning. A survey was conducted for 4th grade nursing students who took 'Introduction to Nursing I (1)' course and agreed to participate in the study. 122 answers out of total 142 were analyzed. The findings are as follows; first, students' satisfaction was topped by off-line learning, followed by on-line learning, and blended learning; second, there was a difference in on-line learning satisfaction depending on the gender among the general characteristics of the research subjects, and also there was a significant difference in off-line learning satisfaction depending on the self-evaluation on grade; third, students pointed out that what needs to be improved most is technical support and system. This study would provide the measures to improve utilization and effectiveness of blended learning, and the basic data to establish university policies for the blended learning.

• The Journal of the Korea Contents Association
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• v.12 no.3
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• pp.487-497
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• 2012

The purpose of this study is to increase the level of learning achievement and satisfaction by developing of on-line learning instruments. This study was to investigate the relationship among learning instrumments(lecture, homeworks, on-line interaction and off-line interaction), learning achievement and learning satisfaction. This survey was conducted 226 responses of e-learning social welfare education learners. Research method used Amos 18. Result indicated that homeworks and off-line interactive instruments had a positive effect on learning achievement and satisfaction. And lecture had a positive effect on learning satisfaction, but on-line mode interaction instruments had no effect. In order to improve the effectiveness of learning, structural development of activity learning instrument is necessary. And to foster learning satisfaction, it will be necessary to increase the learning achievement.

• Journal of The Korean Association of Information Education
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• v.14 no.3
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• pp.341-353
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• 2010

The purpose of the present study is to verify the structural relationship among on-line task value, university support, satisfaction, learning persistence in Cyber University. For this study, W cyber university in Korea was chosen to conduct web survey. A hypothetical model was proposed, which was composed of on-line task value, university support as exogenous variables, satisfaction, learning persistence as endogenous variables. And satisfaction have been suggested as intervening endogenous variables. The result of this study is as follows: First, on-line task value and university support affect satisfaction. Second, university support and satisfaction affect learning persistence. Lastly, satisfaction mediated on-line task value, university support and learning persistence.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.8
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• pp.2078-2087
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• 2009

The Air and Correspondence High School (ACHS) has played a key role as an organization of lifelong learning since 1974. However, extra-curriculum in ACHS has not been operated successfully due to lacks of educational supports and on-line contents. So we surveyed demands of the ACHS teachers and students for successful operation of extra-curriculum, found four subjects that students preferred in the developing activity area which is one of extra-curricular activities, and experimentally developed four on-line contents for extra-curriculum. And we also applied the developed on-line contents to the students of Chongju H.S. After the application, another survey and interview were carried out to measure learner's satisfaction, find out problems of learning with on-line contents and suggest the ways of improving extra-curriculum learning system.

• Journal of the Korea Fashion and Costume Design Association
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• v.23 no.1
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• pp.129-142
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• 2021

This study aims to identify the perception of New-Hanbok one-piece dresses that female consumers have purchased and to analyze the design preference based on design types and brands. Analysis was conducted on New-Hanbok brand websites, and additional research was carried out through a survey of 402 women in their 20s and older. The survey consisted of 36 questions, which were divided into categories including pattern, color, material, and recognition of the one-piece dress. The research results are as follows. First, the preferred design form of the New-Hanbok one-piece dress was long length, medium fit, princess line, round git, rectangular git, regular width git, V neckline, regular width dongjeong, front closing with a wide overlap of the chest are a, narrow goreum, a skirt part with moderate crease spacing and number of pleats, A-line skirt silhouette, long and narrow sleeves, diagonal shoulder line, and a cuff at the end of each sleeve. Second, the preferred colors of the New-Hanbok one-piece dress were bright, neutral, or light and were predominately monochromatic Third, the preferred fabric conveyed a contemporary atmosphere through its print pattern. The most favored fabric material was cotton. Through this study, more systematic design development research should be carried out focusing on the current situation and identifying problems, thereby improving traditional culture.

• Publications of The Korean Astronomical Society
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• v.25 no.1
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• pp.23-28
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• 2010

We present results of a test-study of the large-scale survey using the multi-beam receiver system recently installed on the 14 m telescope at Taeduk Radio Astronomy Observatory (TRAO). We have tested several modes of mapping, and found suitable (time-saving) mapping parameters of 'ON-SOURCE' = 8, 'OFF-SOURCE' = 1 when using 'RPT' = 3 as a position-switching mode. We observed 504 spectra towards the NGC 7538, a star forming molecular cloud in the transition of J = 1 - 0 of $^{12}CO$. From the Outer Galaxy Survey database (Heyer et al., 1998) we obtained 504 spectra for the same region. We compared integrated intensities, line profiles of two databases, and found that they are consistent to each other. From the intensity ratio of these two databases we also found that the value of forward spillover scattering of the TRAO telescope system is 0.58.

• The Mathematical Education
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• v.50 no.1
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• pp.27-40
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• 2011

The purpose of this paper is to analyze and discuss the viewpoint dealing with the fundamental figures-point, line segment, and angle-of elementary school teachers. In fact, our main subjects in this article are as follows; how do elementary school teachers deal with the fundamental figures?, what is the general notion about the fundamental figures of elementary school teachers? Our such subjects come from the survey results about the 'fundamental figures in J. A. Ko(2009); the elementary school students have a tendency to regard the fundamental figures as not mathematical figures. In this article, we discuss mainly the meta-cognitive shift in the transform of notion, for example, from 'congruent' concept to 'equal' concept, about the fundamental figures.

• Journal of Engineering Education Research
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• v.17 no.6
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• pp.53-61
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• 2014

This study aims to identify on the possibility of the convergence education in engineering. Delphi survey on a panel of experts was chosen to be the main methodology for this study, drawing the main factors of convergence education in engineering. From Oct. 10 to Nov. 25, 2013, a three-round Delphi survey was implemented to collect data. A panel of eighteen experts were involved in this survey. For statistical processing, descriptive statistics including frequency, percentage, mean and standard deviation were carried out along with internal reliability test on the survey instrument. First, the possible convergence of disciplines in engineering were found to Design, Industrial design, ICT, Health care services, Video media, Business and Administration, Organizational psychology, Sociology, Humanities and Aesthetics. Second, the convergence education factors to be most important demanded creativity, idea generation techniques such as the expression of thought communication skills, technical expertise in the field per line, understanding of basic knowledge, verification of common elements among different disciplines, understanding of other disciplines fusion in engineering, artistry and imagination, etc. Third, requirements for the talented person of convergence were the open mind and enthusiasm, creative imagination, accept the opinions of others, skills capacity as a creative expression, and challenges. Above-mentioned requirements are found to be the necessary elements for convergence education.