• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 제36회 하계학술대회 논문집 A
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• pp.304-306
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• 2005

This paper presents the RTDS training course on using passive filters for control of harmonic currents. The course can show harmonic currents in porer system, which is occurred by function generators, with Fourier analysis function of RTDS and the effect of passive filters implemented in RTDS to eliminate harmonics. In addition to, With Jeju-Haenam HVDC system, we have simulated the effect of passive filters on harmonic currents occurred by massive power conversion system of HVDC.

• 공학교육연구
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• 제19권5호
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• pp.72-77
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• 2016

The flipped learning is currently suggested in engineering education, and several universities already have used it. However, research rarely examines whether using such special method in engineering education is effective to improve students' learning achievement. To illuminate this issue, we collected the data of students' achievement for two years from students who took system modeling and control course and analyzed them. Overall, the flipped learning is statistically effective to improve students' learning achievement about system modeling and control.

• Safety and Health at Work
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• 제3권3호
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• pp.199-208
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• 2012

Objectives: Although evidence-based medicine (EBM) is a useful method for integrating evidence into the decision-making process of occupational physicians, occupational physicians lack EBM knowledge and skills, and do not have the time to learn the EBM method. In order to enable them to educate themselves at the time and place they prefer, we designed an electronic EBM course. We studied the feasibility and utility of the course as well as its effectiveness in increasing EBM knowledge, skills, and behaviour. Methods: Occupational physicians from various countries were included in a within-subjects study. Measurements were conducted on participants' EBM knowledge, skills, behaviour, and determinants of behaviour at baseline, directly after finishing the course and 2 months later (n = 36). The feasibility and utility of the course were evaluated directly after the course (n = 42). Results: The course is applicable as an introductory course on EBM for occupational physicians in various countries. The course is effective in enhancing EBM knowledge and self-efficacy in practising EBM. No significant effect was found on EBM skills, behaviour, and determinants of behaviour. After the course, more occupational physicians use the international journals to solve a case. Conclusion: An electronic introductory EBM course is suitable for occupational physicians. Although it is an effective method for increasing EBM knowledge, it does not seem effective in improving skills and behaviour. We recommend integrating e-learning courses with blended learning, where it can be used side by side with other educational methods that are effective in changing behaviour.

• 대한지역사회영양학회지
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• 제15권6호
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• pp.750-759
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• 2010

This study was conducted to investigate the effect of two-year course of food and nutrition on improving nutrition knowledge, dietary attitudes and food habits of junior college female students by questionnaires. The subjects were 108 college female students enrolled in the department of food and nutrition in Gyeonggi area. The results were as follows: There were no significant changes in the weights and BMI (Body Mass Index) after 2-yr course of food and nutrition. Nutrition knowledge (14.7 vs 16.3, p < 0.001) and dietary attitude (34.3 vs 35.8, p < 0.01) increased significantly after 2-yr course. However, no significant changes in food habit were observed. Among nutrition knowledge, the scores of functions (4.5 vs 5.2, p < 0.001) and understanding (6.7 vs 7.4, p < 0.01) of nutrients were significantly increased. The recognition of nutrition knowledge increased significantly (83.1 vs 95.7, p < 0.001). Among food habit, dietary habit (13.2 vs 12.5, p < 0.01) and health related habit (15.6 vs 14.6, p < 0.001) were significantly lowered after 2-yr course. The change in dietary attitudes showed significantly positive correlation with food habit changes (p < 0.05). These results showed that 2-yr course of Food and Nutrition had improved the nutrition knowledge and dietary attitudes. Therefore, providing the more systematic and appropriate nutrition education to students during their study period will be improved dietary attitudes and food habits.

• 문화기술의 융합
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• 제6권1호
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• pp.413-418
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• 2020

관광코스 개발을 위한 관광객의 이동패턴을 통신사의 빅데이터를 바탕으로 관광객 정보를 수집 분석하여 관광코스의 질적 향상을 도모하고자 하며, 특히, 분석된 데이터를 통해 관광객의 관광 유입 효과를 추정할 수 있는 실증적인 데이터를 도출하고, 이를 바탕으로 관광코스의 특성과 향후 새로운 관광코스 개발에 필요한 기초자료로 활용하고자 한다. 지역 관광 코스 개발을 위한 관광객의 이동패턴을 통신사, 카드사, 기타의 수집 빅데이터를 바탕으로 관광객의 이동경로 및 체류시간 정보를 수집 분석하여 관광코스 개발의 질적 향상을 도모하기 위함이며, 특히 분석된 데이터를 통해 관광객의 관광유입 효과를 추정할 수 있는 실증적인 데이터를 도출하고, 이를 바탕으로 관광코스의 특성과 향후 새로운 관광코스 개발에 필요한 기초자료로 활용하고자 한다.

• 정보교육학회논문지
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• 제11권3호
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• pp.289-298
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• 2007

본 연구는 보육교사 양성을 위해 개발된 e-러닝 과정의 효과성을 분석하고, 나타난 결과에 대한 원인을 규명하며, 나아가 그 결과를 바탕으로 과정 개선 방향을 도출하기 위하여 수행되었다. 총 292명의 피험자가 참여한 양적 연구 결과, 사전-사후 성취도 검사 점수에서 통계적으로 유의미한 수준의 학업 성취도의 상승을 보였다. 이 효과는 교육 기회가 상대적으로 부족한 계층인 저학력, 비보육전공자, 비수도권 근무자들에게 있어 더욱 크게 나타남으로써, e-러닝의 확산을 통해 보육교사의 질 측면에서의 양극화를 해소할 수 있다는 가능성이 시사되었다. 이어 수행된 질적 연구를 바탕으로, 성취도 평가 방식, 미디어 활용 전략등에서 과정 설계 개선을 위한 구체적인 개선 사항들이 제시되었다.

• Journal of the Korean Data and Information Science Society
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• 제23권1호
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• pp.143-150
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• 2012

A대학교에서 상대평가로 성적을 부여하는 강의의 강의평가 자료를 대상으로 강좌특성이 강좌별 강좌평가점수에 미치는 영향을 분석하였다. 분석 결과 강좌별 강좌평가점수는 강좌 수강생의 평균학년과 남학생비율이 높을수록, 수강인원이 적을수록 높게 나타났다. 이러한 결과를 바탕으로 평가자의 학년과 성별의 효과를 통제할 수 있는 평가모형을 제안하고 제안한 사례를 통하여 평가모형의 수행능력을 고찰하였다.

• 근관절건강학회지
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• 제10권2호
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• pp.156-166
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• 2003

Purpose: To investigate the effects of self-management course in patients with ankylosing spondylitis. Method: Forty-nine subjects were sampled according to research criteria, and divided into two groups: 24 of the experimental group and 25 of control group. To the experimental group, self-management course which developed by the investigators was applied for 6 weeks, each session adopted for two hours per week and additional 30-minutes exercise was carried out two times a week. Result: After participating the self-management course in experimental group, 1) the degree of pain was significantly decreased 2) significant improvement in the flexibility of lumbar spine, 3) uncertainty was significantly decreased. 4) Self-efficacy was not changed between the two groups after self-management course. Conclusions: These findings indicate that the self-management course could be effective in improving the flexibility of lumbar spine and decreasing pain, and uncertainty in patients with ankylosing spondylitis.

• 대한조선학회논문집
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• 제48권4호
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• pp.357-362
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• 2011

It has been often reported that a water-jet propelled high speed vessel lost the course keeping ability in seaway. In this study, model tests of a high speed vessel were performed to measure the running attitude and to check the course keeping ability. The model ship may lose the course keeping ability due to bad running attitudes such as bow drop. So model tests were carried out to improve the running attitude by changing the position of longitudinal center of gravity and using appendages at the bow and the stern of a model. The position of lateral center of pressure moved toward stern and the course keeping ability was improved by modifying the transom wedge angle.

• 한국컴퓨터정보학회논문지
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• 제21권6호
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• pp.29-37
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• 2016

In this paper, we evaluated educational effects of H-STEAM group play contents(a course) and tried to suggest a convergent model for college liberal art curriculum. We opened a mixed course(math, art, engineering, and humanities) with team teaching for this purpose. For the test, we collected data from survey, K-W-L sheet, and reflection paper from 23 students who enrolled in this course. Students should do a team project during the course, propose a new group game, and write K-W-L sheet at the end of each session and reflection paper at the final stage. As a result, it is said that H-STEAM group contents had an effect on students' satisfaction and achievement. During the course, students made academic efforts and were able to construct convergent knowledge from the four fields. From this study, we are sure that H-STEAM contents can play a substitute role for the traditional liberal arts program and innovate the curriculum for the knowledge convergence society.