• 제목/요약/키워드: field goal

검색결과 1,018건 처리시간 0.027초

고등학교 육상선수의 성취목표성향과 자기관리의 관계 (Relationships between achievement goal orientation and self-management in high school track & field athletes)

  • 고의석;한건수
    • 한국산학기술학회논문지
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    • 제13권10호
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    • pp.4445-4452
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    • 2012
  • 본 연구의 목적은 고등학교 육상선수들의 성취목표성향과 자기관리의 관계가 성별, 세부종목별, 그리고 운동경력에 따라 어떠한 차이가 있는지를 규명하는 것이다. 체육고등학교에 재학 중인 229명의 육상선수들이 설문에 참여하였으며, 설문자료를 분석하여 다음과 같은 결과를 도출하였다. 남학생들의 성취목표성향은 여학생들에 비해 과제목표지향적이었으며(p<0.05), 자기관리의 세부영역 중에서도 대인관리, 정신관리, 그리고 몸 관리에서 여학생들보다 높게 나타났다(p<0.05). 세부종목에 따른 결과를 살펴보면, 도약 선수들이 투척선수들에 비해 정신관리가 높게 나타났으며(p<0.05), 다른 자기관리의 세부영역에서는 통계적 유의성이 없었다. 성취목표성향과 자기관리는 고등학교 육상선수들의 경기력에 영향을 미치는 요인으로 볼 수 있지만 현장에서 적용하기 위해서는 본 연구에서 나타난 결과를 보다 세심한 주의가 필요하다.

축구 동영상에서의 장면 구조 분석에 기반한 자동적인 하이라이트 장면 검출 (Automatic Detection of Highlights in Soccer videos based on analysis of scene structure)

  • 박기태;문영식
    • 정보처리학회논문지B
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    • 제14B권1호
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    • pp.1-4
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    • 2007
  • 본 논문에서는 축구 동영상으로부터 자동적으로 하이라이트 장면들을 검출하는 방법을 제안한다. 축구 동영상에서 하이라이트 장면들은 슈팅 장면들이나 골 장면들로 정의 될 수 있다. 우리는 축구 동영상에 대한 구조적 분석을 통해서 일반적으로 골 포스트(goal posts) 영역 주위에서 하이라이트 장면들이 나타나는 것과 하이라이트 장면 이후에는 TV 카메라가 축구 선수들이나 관중석을 확대해서 보여주는 것을 확인할 수 있었다. 본 논문에서 축구 동영상으로부터 하이라이트 장면들을 검출하기 위한 과정은 세 단계로 구성된다. 첫 번째 단계는 통계적인 문턱치(statistical threshold)를 이용한 그라운드(playing field) 영역을 추출한다. 두 번째 단계는 골 포스트를 찾기 위해서 그라운드 영역과 그라운드가 아닌 영역들의 경계선 부분을 검출한다. 그리고 마지막 단계에서는 축구 선수나 관객들의 확대 장면을 검출하기 위해서 그라운드가 아닌 영역들에 대해서 connected component labeling 기법을 적용하여 한 장면 내에서 그라운드가 아닌 영역들의 비율을 계산한다. 본 논문에서는 하이라이트 장면 검출에 대한 성능을 평가하기 위하여 정확률(precision)과 재현율(recall)을 사용하고, 실험을 통하여 제안된 방법이 정확률 95.2%, 재현율 854%로 축구 동영상에서 하이라이트 장면을 효과적으로 검출할 수 있음을 확인하였다.

전위장을 이용한 로봇 경로계획의 구조적 Local minimum을 극복하는 경로계획 방법 (A trajectory plannings avoiding structural local minimum problem in robot path planning using potential field)

  • 남헌성;이지홍;류준
    • 전자공학회논문지B
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    • 제33B권9호
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    • pp.13-23
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    • 1996
  • When artificial potential field approach is used to avoid obstacle, the problem can be occurred in case that manipulator selects the path which across over an obstacle among paths. In thiscase manipulator can't reach the desired goal form obstacle. This problem is a case of structual local minimum. so this paper proposes the method to solve structual local minimum in this case. The method is that the manipulator goes via temporary goal. This paper proposes that visual region concept to select the temporary goal. The temporary goal is selected on the border of the visual region. To prove its effectiveness, two simulation examples are done by two link manipulator in two dimension and by three link manipulator in three dimension.

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실용화 자기부상열차의 부상용 전자석 설계 검토 (DESIGN STUDY OF ELECTROMAGNET FOR MAGLEV)

  • 강병관;김국진;김봉섭;최규철
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2004년도 춘계학술대회 논문집
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    • pp.1303-1307
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    • 2004
  • MAGLEV is the vehicle which can run in levitated condition by the electro-magnets, and the vehicle can run without any contact condition. In MAGLEV system achieving a high magnetic field for minimum weight is a noteworthy goal. Unfortunately the two aspects of this goal high field and low weight are contradictory. Suitable designs must be sought using optimization techniques. In this paper, magnet attraction force is calculated and conformed by experimental data for designing a electro-magnet.

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자기부상열차용 전자석 최적 설계 (OPTIMUM DESIGN OF ELECTROMAGNET FOR MAGLEV)

  • 강병관;김국진
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2003년도 춘계학술대회 논문집
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    • pp.439-443
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    • 2003
  • MAGLEV is the vehicle which can run in levitated condition by the electro-magnets, and the vehicle can run without any contact condition. In MAGLEV system achieving a high magnetic field for minimum weight is a noteworthy goal. Unfortunately the two aspects of this goal high field and low weight are contradictory. Suitable designs must be sought using optimization techniques. In this paper is a technique for designing a electro-magnet in terms of simple equation.

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화학공학분야 교육비전 수립 연구 (A Proposal for the Education Vision for Chemical Engineering Field)

  • 이규녀;황주영;이광복;한수경;이영우
    • 공학교육연구
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    • 제21권6호
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    • pp.99-107
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    • 2018
  • The purpose of this study is to establish and propose educational vision of chemical engineering field in order to search for academic identity and future education direction in chemical engineering field. In order to achieve this research purpose, we investigate the literature and data on the vision, educational goals, and curriculum of the department of chemical engineering in domestic and foreign universities. We also analyze the SWOT of internal and external environmental factors respectively. The validity of the proposal was verified through delphi survey with delphi panels and the vision was developed by revising and improving upon the opinions of professionals. The vision is comprised of the value and mission of learning, the educational purpose, and the educational goal. The first stage is value and mission of chemical engineering. The educational purposes and the educational goals are divided into 'Department of Chemical Engineering' and 'Department of Chemical and Biological Engineering'. The application of the educational vision of chemical engineering field is as follows. First, we expect that the vision to be a valuable, philosophical, and theoretical basis for establishing educational objectives and goals in the field of chemical engineering. Hopefully, it will be used as a general education goal for the top-level education. Second, we hope that the vision will be used to develop customized vision, customized educational purpose, and educational goals that reflect the characteristics of region, departments, graduates, and educational needs in the field of chemical engineering. Finally, we hope that these results will be the starting point to discuss the educational vision in the department of chemical engineering.

미용분야 종사자의 경력개발이 조직몰입에 미치는 영향 (The effects of career development of beauty industry professionals on organizational commitment)

  • 홍수남;권오혁
    • 한국의상디자인학회지
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    • 제22권4호
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    • pp.39-48
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    • 2020
  • This study's research method was to investigate the effects of career development in the field of beauty on organizational commitment. A survey targeted 271 beauty workers living in Seoul and Gyeonggi-do. For data analysis, SPSS 21.0 was used for statistical processing. First, descriptive statistics were analyzed, followed by a factor analysis and reliability analysis, third, correlation analysis, and finally linear regression analysis. Detailed research results are as follows. First, the effect of career development of beauty workers and organizational commitment was investigated. The result is as follows. The independent variables, self-development, goal orientation, and career orientation, which are sub-variables of career development, were found to have a statistically significant positive effect. Second, the effect of career development of beauty workers on co-workers' organizational commitment was investigated. The result is as follows. By the independent variable, self-development, and career orientation, which are sub-variables of career development, are found to have a significant positive effect. However, goal orientation had no effect. Therefore, based on the results of this study, the implications are as follows. As beauty is a creative pursuit, it is often done in collaboration rather than alone, and therefore camaraderie plays an important part in the foundation of a commitment to a company. It is a field that goes after a goal after committing to a community mindset, instead of pursuing a goal alone.

목표 및 고객 관점에서의 비즈니스 모델링 (Business Modeling Focused on the Viewpoint of Goal and Customer)

  • 변대호
    • 산업공학
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    • 제18권2호
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    • pp.193-204
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    • 2005
  • The modeling of business processes is key component of any improvement or re-engineering endeavor. Present trends of business modeling methodologies are to include the social context of an organization. Although various methodologies have been developed specially for the business process field and have a social context, it is not in terms of goals and customers, but processes, activities, and tasks. We describe our stance on business process modeling, based on the viewpoint of goal and customer. First, we formalize a goal-oriented business process model and its evaluation mechanism. Second, we propose a methodology of business process modeling, which starts from perceiving and describing interactions between organization and customer from the customer's viewpoint.

미식축구의 필드골(Field Goal) 킥(Kick)에 대한 운동학적 분석 (A three-dimensional kinematic analysis of the field goal kicking motion in American football)

  • 안찬규;김기형;최승방
    • 한국운동역학회지
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    • 제13권1호
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    • pp.139-153
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    • 2003
  • The purpose of the study was to present technical guidance about the field goal kicking motion in American football for novices. For this purpose, kinematic analysis on the field goal kicking motion of two skilled players and two unskilled players was carried out. The following conclusions were made: 1. In comparison on the total elapsed time of the kicking, there were no significant differences between two groups. The progressing time from BP event to impact among experts group, however, took 0.141 second less than that of novices group. 2. The experts group showed right hip rotatier horizontally toward the targeted ball fixing left hip as the axis. On the other hand, the novices group didn't use the left hip as the axis in the kicking motion. 3. At the impact of kicking the ball, regarding with the distance of the ball and the supporting leg, the right and left distance of experts was 3.45cm longer than that of novices, the front and the rear distance of experts was 5.14cm shorter than novices. 4. At the impact, experts' initial velocity of the targeted ball was $5.27^m/s$ faster than novices', besides experts' incidence angular displacement was $3.78^{\circ}$ larger than novices'. 5. After BP event, experts showed a stable movement maintaining flexion and extension at left hip joint and knee joint. On the other hand, for novices, the angle of the left lower extremities became larger. 6. Experts showed the efficient flexion and extension of the hip joint and the knee joint during following procedure in the whole event of the kicking motion. At the BP event, the right knee joint angle of novices was $11.46^{\circ}$ larger than that of experts. However, the duration of the impact event and FT event among, novices had less extension of knee joint than experts. 7. At the 2nd phase, for both of the groups, the angular velocity of the knee joint drastically increased as the angular velocity of hip joint decreased. However, only novices showed the largest negative angular velocity at the impact.