• 대한임베디드공학회논문지
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• 제4권4호
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• pp.180-189
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• 2009

Currently, most automobile companies are interested in research on intelligent autonomous vehicle. They are mainly focused on driver's intelligent assistant and driver replacement. In order to develop an autonomous vehicle, lateral and longitudinal control is necessary. This paper presents a lateral and longitudinal control system for autonomous vehicle that has only mono-vision camera. For lane detection, we present a new lane detection algorithm using clothoid parabolic road model. The proposed algorithm in compared with three other methods such as virtual line method, gradient method and hough transform method, in terms of lane detection ratio. For adaptive control, we apply a vanishing point estimation to fuzzy control. In order to improve handling and stability of the vehicle, the modeling errors between steering angle and predicted vanishing point are controlled to be minimized. So, we established a fuzzy rule of membership functions of inputs (vanishing point and differential vanishing point) and output (steering angle). For simulation, we developed 1/8 size robot (equipped with mono-vision system) of the actual vehicle and tested it in the athletics track of 400 meter. Through the test, we prove that our proposed method outperforms 98 % in terms of detection rate in normal condition. Compared with virtual line method, gradient method and hough transform method, our method also has good performance in the case of clear, fog and rain weather.

• 영재교육연구
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• 제11권3호
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• pp.221-244
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• 2001

북한은 최근 ‘강성대국’론이라는 통치이념 아래 영재교육을 과학기술 강국으로 도약하기 위한 필수적인 교육정책으로 내세우고 있다. 북한은 과학기술 분야 중에서도 정보통신, 컴퓨터 교육을 강조하면서 영재교육을 통해 현대적 지식과 기술을 겸비한 과학기술 인력을 양성하는데 주력하고 있다. 북한은 이미 1960년부터 음악학교·외국어학교·조형예술학교·무용학교·체육학교 등을 설립하여 다양한 분야에서의 영재교육을 추진하였으며, 1984년부터는 제1고등중학교라는 과학영재학교를 설립하여 운영해 오고 있다. 또한 군사분야의 영재학교로 만경대혁명학원을 설립하였다. 대학에서의 영재교육도 강화하고 있는데 제1고등중학교를 졸업한 학생들을 위하여 김일성종합대학, 김책공업종합대학, 리과대학 등에는 특별 과정을 개설하여 첨단 과학기술 분야에서의 영재교육을 실시하고 있다. 또한 예·체능 전문대학의 경우에는 어릴 때부터 소질 있는 영재아들을 조기에 발굴하여 꾸준한 연계교육을 실시하고 있다.

• 성인간호학회지
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• 제17권1호
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• pp.44-55
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• 2005

Purpose: The purposes of this study were to examine the effects of recreational therapy (60 minutes * 3times/week * 6weeks) on dementia behavior & affection, and activity of daily living of senile people with dementia. Methods: The subjects were 27 senile people with dementia, 16 experimental group, 11 control group, admitted at K hospital in Chungnam province in quasi-experimental study. The recreational therapy program was developed, based on the recreational program for senile welfare made by athletics science research institute in Chungnam National University(1997). It consisted of rhythm game, ball play, and beanbag game. The data were collected through questionnaires from May 1st to June 10th 2003 and were analyzed using descriptive statistics, ${\chi}^2$-test, Fisher' exact test, and Man Whitney U test. Result: The dementia behavior and affection score was significantly different between the two groups (U=32.5, p=.005). The ADL score was significantly different between the two groups (U=12.0, p=.000). There were significant decrease in dementia behavior & affection, and improvement in ADL in the experimental group compared to the control group. Conclusion: Recreational therapy intervention was proved effect in decreasing dementia behavior & affection and promoting ADL of senile people with dementia. We recommended re-test in containing a communicating variable.

• 대한족부족관절학회지
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• 제7권1호
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• pp.95-100
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• 2003

Purpose: To evaluate the incidence, contributing factors, and clinical results of refracture of proximal 5th metatarsal stress fracture treated operatively in athletes Materials and Methods: This study included 8 patients who had been treated for refracture of proximal 5th metatarsal stress fracture with operaton. Their charts & radiologic findings were evaluated retrospectively. Results: The overall incidence of refracture was 13%. Main contributing factors were time of return to sports activity and associated deformities such as cavus foot or flat foot. Seven cases were managed with nonoperative treatment, and we added percutaneous pin fixation under local anesthesia in one case. Bony union was seen at average 8. 5 weeks in 7 cases except 1 nonunion and all of 8 patient returned to athletics at average 16 weeks. Conclusion: The incidence of refracture of proximal 5th metatarsal stress fracture treated operatively in athletes was relatively high. Time of rerum to sports activity must be decided very carefully on individual situation and further imaging study may be helpful for bony union evaluation. The non-operative treatment may have a good result if bone graft was done initially.

• 한국전문물리치료학회지
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• 제12권1호
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• pp.63-70
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• 2005

To compare the effects of forward walking and backward walking on surface electromyographic analysis of quadriceps muscles at treadmill grades of 0%, 5% and 10%, subjects were randomized to eleven athletics (5 females, 6 males), with a mean age of 17.8 years, and a SD of 4.66 years. The values of the surface electromyographic (SEMG) activity of the rectus femoris (RF), vastus lateralis (VL) and vastus medialis oblique (VMO) were measured during forward walking and backward walking on a treadmill at grades of 0, 5 and 10%. The subjects walked for approximately 10 seconds at 4.0 km/h. The data were analyzed by repeated measuring of the two-way ANOVA and analyzed by a paired t-test between forward walking and backward walking. The SEMG activity levels of the RF, VL and VMO were the highest when both the forward walking and backward walking increased incrementally for treadmill grades of 0% to 10%, but the VMO/VL ratio had no significant changes. The SEMG activity levels of the RF, VL and VMO were significantly different between directions. However, SEMG activity levels of the RF, VL, VMO and VMO/VL ratio did not show significant difference among the treadmill grades. No statistically significant interactions were detected between the direction of walking and treadmill grade. Backward walking on the treadmill at 4 km/h and grades of 0%, 5%, 10% elicited a greater SEMG activity on the quadriceps muscles than did forward walking under the same conditions. The results suggest that the quadriceps may be effectively activated by performance at treadmill grades of 10%. This investigation confirms that backward walking up an incline may place additional muscular demands on individuals.

• 디지털융복합연구
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• 제14권7호
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• pp.497-506
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• 2016

본 연구의 목적은 스킨스쿠버다이빙 참여자의 경험적 가치와 감정반응 및 행동반응과의 관계를 규명하는 데 있다. 본 연구의 대상은 2016년 서울올림픽 경기장 스쿠버 다이빙 풀과 수원 월드컵 경기장 스쿠버 다이빙 풀에서 다이빙을 하고 있는 참여자 300명을 편의표본 추출법을 활용하여 표집 하였다. 이중 불성실한 답변으로 간주되는 41부를 삭제하여 총 259의 최종유표본을 가지고 자료처리 하였다. 자료처리는 PASW 18.0 Ver을 활용하여 빈도분석, 탐색적 요인분석, 신뢰도 분석, 상관관계분석, 다중회귀분석을 실시하였다. 구체적인 결과는 다음과 같다. 첫째, 스킨스쿠버 다이빙 참여자의 경험적 가치는 감정반응에 유의한 영향을 미치는 것으로 나타났다. 둘째, 스킨스쿠버 다이빙 참여자의 경험적 가치는 행동반응에 유의한 영향을 미치는 것으로 나타났다. 셋째, 스킨스쿠버 다이빙 참여자의 감정반응은 행동반응에 유의한 영향을 미치는 것으로 나타났다.

• 한국운동역학회지
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• 제23권3호
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• pp.189-200
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• 2013

The purpose of this study was to compare the kinematic analyses of the women's pole vault skills difference between skilled group (1st to 8th place) and less skilled group (10th to 15th place) who participated in IAAF World Championships Daegu 2011. To achieve this goal, 16 women's pole vault player's kinematic analyses was conducted. Player's best performance was recorded by five normal video cameras operating at 60 Hz. The results of this study through the research procedures above are as follows. First, Skilled group's average step length and the ratio of step length to her height were longer than less skilled's group in run-up phase. Second, Skilled group's horizontal velocity was faster than less Skilled group's results. And pole plant angle was lower than less Skilled group's results in take-off phase. Third, Maximum pole flexion angle did not show difference of between two groups in pole bending phase. However, Skilled group's vertical velocity was higher than less skilled group's results.

• 한국산학기술학회논문지
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• 제12권9호
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• pp.4054-4060
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• 2011

본 연구의 목적은 투척선수들의 지도자 신뢰가 선수만족 및 인지된 경기력에 미치는 영향을 규명하는 것이다. 연구 대상은 2011년 4월21일부터 25일까지 5일간 개최된 제40회 전국종별육상선수권에 참가한 고등부, 대학부, 일반부 남 여 육상투척선수 198명이었다. 수집된 자료는 분석 목적에 따라 사례별로 분리 입력하였다. 지도자와 선수의 신뢰가 선수만족 및 인지된 경기력에 미치는 영향을 분석하기 위하여 SPSS 18.0 프로그램으로 각 변인별 상관관계 분석 및 다중회귀분석(multiple regression)을 실시하였다. 첫째, 투척선수들의 지도자 신뢰는 선수만족에 의미 있는 영향을 미친다. 즉, 지도자 신뢰의 하위요인인 성실성, 능력, 일관성, 이타성, 개방성은 선수만족의 하위요인인 기술분석, 지도능력, 코치자질에 유의한 영향을 주었다. 둘째. 투척선수들의 지도자신뢰는 인지된 경기력에 의미 있는 영향을 미친다. 즉, 지도자 신뢰의 하위요인인 성실성, 능력, 일관성, 이타성, 개방성은 인지된 경기력의 하위요인인 승리의지, 기량발휘에 의미 있는 영향을 미치는 것으로 나타났다. 이러한 결과로 볼 때, 투척선수들의 지도자신뢰는 선수만족은 물론 인지된 경기력에 유의미한 영향을 미친다고 할 수 있다.

• 대한통합의학회지
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• 제10권2호
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• pp.61-72
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• 2022

Purpose : This study aimed to identify the educational effects of the International Development Cooperation and Healthcare course from 2018 to 2020. Methods : Changes in awareness of international development cooperation (understanding international development cooperation as well as government Official Development Assistance [ODA], thoughts on aid, and thoughts on government's aid scale) were analyzed using web-based surveys. The pre-course survey was conducted 1-2 weeks before the semester started, and the post-course survey was conducted 1-2 weeks after the semester ended. All data were analyzed using the SPSS 26.0 program, and statistical significance was set at p< .05. Results : A total of 314 people participated in the survey before taking the course, and 286 people participated in the survey after taking the course. Analysis of the changes in students' awareness of international development cooperation showed that all items (understanding international development cooperation and government ODA, as well as having thoughts on aid and government's aid scale) were improved. Regarding changes in awareness according to general characteristics, thoughts on aid were statistically significant according to all characteristics except for 2018. Regarding government's aid scale, awareness scores increased after taking the course in students who majored in healthcare, fine arts and athletics, broadcasting and media studies, and digital contents. Conclusion : This study showed that changes in awareness of international development cooperation were largest in second-year students. Compared to changes regarding international development cooperation, government ODA, and thoughts on aid, changes regarding thoughts on government's aid scale were minor. In the future, it is necessary to develop class content suitable for the first-year level and to supplement and operate content that can change the way of thinking on government's aid scale.

• 실천공학교육논문지
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• 제16권1_spc호
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• pp.71-78
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• 2024

본 연구에서는 운동부 학생들의 진로탐구를 위하여 교육 프로그램을 개발하였다. 운동부 학생들이 운동으로 성공하지 못할 때를 대비하여 우리 사회의 다른 분야에 대한 진로지도의 필요성을 강조하였고, 기존 연구를 분석하고 요구사항을 파악하여 학습 계획을 설계하였다. 이를 바탕으로 단계별로 기록관리 시스템 개발 관련 교육 방안을 마련하였다. 초·중·고등학교에서 연구되었던 진로지도 관련 기존 연구를 참고하여 4가지 단계 즉, 분석, 설계, 개발, 적용을 거쳐 연구를 진행하였다. 아울러 운동부 학생들이 본인의 분야에 관련된 소프트웨어를 개발해 봄으로써 더욱 흥미를 갖고 학습을 할 수 있도록 하였다. 본 연구를 통하여 운동부 학생을 위한 진로지도에 대한 연구가 다양해질 것으로 기대한다.