• 제목/요약/키워드: orientation control

검색결과 911건 처리시간 0.026초

유리온실내의 직달일사 또 산란일사 해석을 위한 시뮬레이션 모형 - 동방위가 단동 온실내의 직달일사 투과율에 미치는 영향 - (A Simulation Model for the Analysis of Direct and Diffuse Solar Radiation in Glasshouse - Effect of orientation on the transmissivity of direct solar radiation in single- span glasshouse -)

  • 김용현;이석건
    • 생물환경조절학회지
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    • 제6권3호
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    • pp.176-182
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    • 1997
  • 온실의 동방위 및 지붕경사각, 구조물의 재원, 설치 지역의 위도 등이 단동형 유리 온실내의 직달 및 산란일사 투과에 미치는 효과를 분석하고자 컴퓨터 시뮬레이션 모형이 개발되었다. 개발된 모형은 년중 일수, 온실의 방위 및 설치된 지점의 윈도, 지붕경사각이 서로 다른 단동 및 연동 온실에 대하여 적용할 수 있다. 본 연구에서 수행된 온실의 동방위가 온실내의 직달 및 산란일사 투과율에 미치는 영향에서 얻어진 결과를 요약하면 다음과 같다. 1. 단동의 유리온실에서 계산된 산란일사의 투과율은 60.4%로서, 동방위에 무관하게 일정한 값을 갖는 것으로 나타났다. 2. 겨울철에 직달일사의 투과율은 동서동에서 67∼69% 정도이고, 남북동의 경우 51∼55% 정도로서 동서동에서 14∼16% 정도 높게 나타났다. 3. 여름철에 직달일사의 투과율은 동서동에 서보다 남북동에서 높게 나타났다. 4. 직달일사의 투과율에 미치는 국내 지역간의 차이는 거의 없는 것으로 나타났다.

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부산지역 기혼남녀의 심리적 복지감에 관한 비교연구 (Comparison of the Psychological Well-Being of Married Men and Women in Busan)

  • 이정숙
    • 한국지역사회생활과학회지
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    • 제15권3호
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    • pp.85-95
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    • 2004
  • The purpose of this study was to empirically verify the influence of certain variables on the psychological well-being of married men and women and to provide a basis for promoting the quality of life. The subjects of this study were 366 married men and women in Busan. The data was obtained through administering a self-reported questionnaire. Statistical analysis was carried out using SPSS/WIN 10.0 and included frequencies, means, standard deviation, Chronbach'a, $$\chi$^2$, t-test, and regression analysis. The major results of this study were as follows: First, the scores for degree of income propriety, fate control orientation and material orientation of married men was higher than those of married women. The scores for degree of stress recognition and perceived equity showed no significant difference between men and women. The score for psychological well-being of married men and women was relatively low. The score of psychological well-being of married women(2.94) was higher than that of married men(2.67). Second, variables that affect the psychological well-being of married men were degree of income propriety(p>.001), degree of perceived stress(p>.001), fate control orientation(p>.001) and material orientation(p>.001). Variables that affect psychological well-being of married women were degree of income propriety(p>.001), degree of perceived stress (p>.001), fate control orientation(p>.001) and perceived equity(p>.01). The variable of perceived equity didn't affect psychological well-being of married men. The variable of material orientation didn't affect the psychological well-being of married women. Third, the influence level of the degree of income propriety of married men and women was the highest among the variables.

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The Effects of Goal Orientation Consciousness versus Unconsciousness on Consumers' Choice Tendency

  • CHOI, Nak-Hwan;CHEN, Fei
    • 산경연구논집
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    • 제11권1호
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    • pp.7-17
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    • 2020
  • Purpose: This study aimed at exploring the product choice tendency differences between the consciousness and unconsciousness of goal orientation when product attributes is perceived to be compatible with the goal orientation. Research design, data and methodology: Empirical study used a 2 (goal conscious vs. unconscious) × 3 (hedonic vs. performance vs. reliability attribute) between-subjects design and one control group. To verify hypotheses, χ2-test was conducted to 320 questionnaire data answered by undergraduate students of Jiangxi Normal University in China. Results: First, consumers under unconscious condition showed a higher product choice consistency based on compatibility between hedonic (performance) attribute of the product and their hedonic (performance) promotion goal-orientation than those under the conscious condition. Second, product choice effects of compatibility between reliability attribute of the product and prevention goal orientation were not significantly different between consumers' consciousness and unconsciousness of their prevention goal orientation. Conclusions: Marketers of 'under dog' should try to develop and deliver the product attributes different from the attributes of 'top dog.' And the 'top dog' marketers should help their customers to avoid the conflicts by developing the environment of inducing their goal orientation unconsciously. Brand marketers should always pay attention to the reliability attributes concerned with the prevention goal orientation.

의료기관의 서비스지향성 측정도구의 신뢰도와 타당도 평가 (Validity and Reliability of a Service Orientation Scale for Health Care Organization)

  • 이명하;박숙경;이옥주
    • 간호행정학회지
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    • 제20권4호
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    • pp.362-372
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    • 2014
  • Purpose: The purpose of this research was to develop and test the validity and reliability of the Service Orientation Scale for Health Care Organization. Methods: The Service Orientation Scale for Health Care Organization, $SERV^*OR$, was developed through forward-backward translation methods. Internal consistency and reliability, construct and criterion validity were calculated using SPSS Statistics WIN 17.0. Survey data were collected from 283 clinical nurses in a general hospital in J province. Results: The Service Orientation Scale for Health Care Organization showed reliable internal consistency with Cronbach's ${\alpha}$'s for the total scale ranging from .85~.91. Factor loading of the 30 items on four sub-scales ranged from .67~.83. The sub scales were named service leadership, service system, customer focus, and service control. Item convergent and discriminant validity were also established for the Service Orientation Scale for Health Care Organization. Criterion validity showed a significant correlation with customer orientation. Conclusion: The findings of the study demonstrate that the Service Orientation Scale for Health Care Organization has satisfactory construct and criterion validity, and reliability and can be used to measure service orientation.

초등학교 과학 수업에서 학생들의 수행 목표 지향성 수준에 따른 협동 학습의 효과 (The Effects of Cooperative Learning by Students' Performance Goal Orientation in Elementary Science Classes)

  • 고한중;김연실;강석진
    • 한국초등과학교육학회지:초등과학교육
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    • 제29권3호
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    • pp.307-315
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    • 2010
  • In this study, we investigated the effects of cooperative learning by the levels of students' performance goal orientation in science classes on 6th graders' science achievement and science learning motivation. Two classes (47 students) from an elementary school were respectively assigned to a control group and a treatment group. A performance goal orientation test and a science learning motivation test were administered as pretests. The intervention of cooperative learning lasted for 24 class periods. A researcher-made achievement test and the science learning motivation test were administered after the instructions. ANCOVA results indicated that the score of the treatment group was significantly higher than that of the control group in the achievement test. However, no interaction was found between the cooperative learning treatment and the levels of students' performance goal orientation. There were significant aptitude-treatment interactions in science learning motivation.

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도포형 자기기록 매체의 자성층에서 자성체의 배향거동과 배향상태에 따른 Tape 특성의 변화 (Effect of Orientation on Magnetic Tape Properties)

  • 김상문;김태옥;신학기;여운성
    • 한국자기학회지
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    • 제7권6호
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    • pp.314-320
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    • 1997
  • 폴리에스터 film 위에 자성도료를 도포 후 자성체의 배향 거동을 살펴보았다. static orientation 처리하여 평가한 결과 자성도료가 도포된 film이 배향자석을 통과할 때 배향자석의 입구측과 출구측에서 배향성이 최대로 나타나나 출구측이 약간 낮게 나타났으며 배향자석의 출구를 지나면서 static energy의 감소와 entropy의 증가에 의하여 도막의 건조과정 중 배향성은 서서히 감소되다가 완전히 건조되면서 일정한 수준으로 유지되었다. 그리고 film의 중심부보다 양쪽의 edge 부위에서의 배향성은 떨어지는데 그 원인은 배향자석의 형태에 기인하는 것으로 생각된다. Dynamic orientation 처리하여 평가한 결과 자기 tape에서 자성도막의 배향성이 향상됨에 따라 전 대역에서의 출력 특성은 향상되었으며 건조 조건에 따라서도 tape의 배향성이 변하였다. 따라서 자기 tape의 출력특성을 향상시키기 위하여는 배향자석의 설계 및 자성도료의 건조 조건 등의 검토가 필요하다고 생각한다.

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대칭형 자유동작에 의한 3D 아바타 실시간 제어 알고리즘 (An algorithm for real-time control of a 3D avatar by symmetry-formed motions)

  • 장희동
    • 한국게임학회 논문지
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    • 제3권2호
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    • pp.24-29
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    • 2003
  • The market of digital avatar with internet and digital technology is increasing rapidly. The users want to express any free-formed motion of their avatars in the cyber space. The user s motion capturing method as the avatar's motion can express any free-formed motion of the avatar in real-time but the methods are expensive and inconvenient. In this paper, we proposed a new method of expressing any free-formed motion of the avatar in real-time. The proposed method is an algorithm for real-time control of a 3D avatar in symmetry-formed free motion. Specially, the algorithm aims at the motion control of a 3D avatar for online dancing games. The proposed algorithm uses the skeleton character model and controls any one of two hands of the character model by a joystick with two sticks. In the symmetry-formed motion, the position and orientation of one hand can determine the position and orientation of the other hand. And the position and orientation of a hand as an end-effector can determine the pose of the arm by Inverse Kinematics. So the algorithm can control the symmetry-formed free motions of two arms by one joystick with two sticks. In the dance game, the algorithm controls the arm motion by the joystick and the other motion by the motion captured DB.

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간호대학생의 아동간호 임상실습 전 시뮬레이션 기반 오리엔테이션 프로그램의 효과 (Effects of Simulation-Based Orientation Program before Pediatric Clinical Practice of Nursing Students)

  • 하영옥;정소영
    • 산업융합연구
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    • 제18권6호
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    • pp.119-127
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    • 2020
  • 본 연구는 처음 아동간호 임상실습을 준비하는 학생들을 대상으로, 시뮬레이션 기반 오리엔테이션 프로그램의 효과를 확인하고자 시행되었다. 본 연구는 비동등성 대조군 전후설계의 유사실험연구로서, 임상실습을 시작하는 간호학과 3학년 학생 70명이 대상자이다. 실험군 35명의 학생에게는 시뮬레이션 기반 오리엔테이션을 적용하였고, 대조군 35명의 학생에게 기존의 강의형태 오리엔테이션을 적용하였다. 자료수집은 대상자들의 오리엔테이션 전과 실습 후에 간호수행능력, 지각된 스트레스, 자기효능감, 의사소통능력에 대한 설문으로 진행하였고, 수집된 자료는 SPSS WIN 23.0 프로그램을 사용하여 분석하였다. 연구결과 간호대학생의 아동간호 실습 전 시뮬레이션 기반 오리엔테이션 프로그램은 간호수행능력을 향상시키는 것으로 나타났다(t=5.390, p<.001). 지각된 스트레스와 자기효능감, 의사소통능력은 실습 후 모두 증가하였지만, 통계적으로 유의하지는 않았다. 따라서, 시뮬레이션 기반 오리엔테이션의 내용을 구성하고 운영할 때 학생들의 상황을 충분히 고려할 필요가 있다.

자속관측기를 이용한 유도 전동기 자계 Orientation형 센서리스 벡터제어 (Field Oriented Vector Control of Induction Motor without Speed Sensor Using Flux Observer)

  • 손의식;홍순일
    • Journal of Advanced Marine Engineering and Technology
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    • 제27권1호
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    • pp.100-107
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    • 2003
  • This study was to control magnetic field orientation-typed sensorless vector control by applying the theory of a rotor flux observer to drive an induction motor. This research suggested a new speed estimation method that estimates speed with the rotor flux obtained by using a flux observer and the variable of state current detected by a current sensor without a speed sensor. Because the speed estimation method is independent from the motor constants, it is not necessary to control the gain of the parameters and the algorithm is simple. In the findings of the study, the researcher was convinced of the control function and the possibility of realization in the simulation experiment of sensorless vector control system by using DSP(Digital Signal Prosessor).

임피던스 제어와 적분 슬라이딩 모드 제어를 이용한 메카넘 휠 이동로봇의 강인한 궤도 추적 제어 (Robust Trajectory Tracking Control of a Mecanum Wheeled Mobile Robot Using Impedance Control and Integral Sliding Mode Control)

  • 우철민;이민욱;윤태성
    • 로봇학회논문지
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    • 제13권4호
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    • pp.256-264
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    • 2018
  • Unlike normal wheels, the Mecanum wheel enables omni-directional movement regardless of the orientation of a mobile robot. In this paper, a robust trajectory tracking control method is developed based on the dynamic model of the Mecanum wheel mobile robot in order that the mobile robot can move along the given path in the environment with disturbance. The method is designed using the impedance control to make the mobile robot to track the path, and the integral sliding mode control for robustness to disturbance. The good performance of the proposed method is verified using the MATLAB /Simulink simulation and also through the experiment on an actual Mecanum wheel mobile robot. In both the simulation and the experimentation, we make the mobile robot move along a reference trajectory while maintaining the robot's orientation at a constant angle to see the characteristics of the Mecanum wheel.