• 제목/요약/키워드: Scale measurement

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데오드라이트 시스템의 측정 정확도에 대한 연구(II) -기준자 측정 높이에 따른 측정 정확도 (A Study on Measurement Accuracy of Theodolite System(II) -A Measurement Accuracy for a Height of Scale Bar)

  • 윤용식;이동주;정종길
    • 한국공작기계학회논문집
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    • 제13권4호
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    • pp.37-43
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    • 2004
  • A measurement accuracy of theodolite system may be affected by a measurement environment, a measurement distance change and so on. This study was performed for measuring an accuracy when the height of scale bar is changed 0.05m, 0.5m, 1m and 1.5m under the distance 3m between two theodolites, the distance 4m from the theodolite system to scale bar and the distance 5m from the thodolite system to the horizontal target bar. And we could know that the best height is 0.05m and 1m.

체지방측정이 가능한 전자식 체중계의 개발 (Development of body-fat measurable electronic scale.)

  • 최병상;김일환;박찬원
    • 산업기술연구
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    • 제26권B호
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    • pp.243-248
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    • 2006
  • The purpose of this study is to design a body-fat measurable electronic scale which can measure body impedance and weight. The hardware configuration of this system for the body-fat measurement includes a sinewave constant current generator, a analog switch circuit and a microprocessor with peripheral interface as well as electronic scale circuit. And the dedicated software is also designed for calculating body fat and body composition analysis from the result of the measurement.

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데오드라이트 시스템의 측정 정확도에 대한 연구(V) - 타켓 바의 거리에 따른 측정 정확도 (A Study on Measurement Accuracy of A Theodolite System(V) - A Measurement System Accuracy depending on the distance from theodolite system to target Bars)

  • 윤용식;이동주
    • 한국공작기계학회논문집
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    • 제14권4호
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    • pp.13-21
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    • 2005
  • The affected factors for an accuracy of theodolite system are not only the measurement environment of temperature, illumination, etc. but also the measurement processes of the distance between two theodolites, the distance from theodolite system to scale bar and the distance from theodolite system to targets. We have known that the best collimation distance between two theodolites and the best distance from theodolite system to scale bar is $3{\sim}4m$. This study was performed for searching the best distance from theodolite system to targets on above measurement configuration. And, we could know that the best distance from theodolite system to targets is $2{\sim}6m$ and the system accuracy could be within ${\pm}0.025mm$.

Flexible camera series network for deformation measurement of large scale structures

  • Yu, Qifeng;Guan, Banglei;Shang, Yang;Liu, Xiaolin;Li, Zhang
    • Smart Structures and Systems
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    • 제24권5호
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    • pp.587-595
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    • 2019
  • Deformation measurement of large scale structures, such as the ground beds of high-rise buildings, tunnels, bridge, and railways, are important for insuring service quality and safety. The pose-relay videometrics method and displacement-relay videometrics method have already presented to measure the pose of non-intervisible objects and vertical subsidence of unstable areas, respectively. Both methods combine the cameras and cooperative markers to form the camera series networks. Based on these two networks, we propose two novel videometrics methods with closed-loop camera series network for deformation measurement of large scale structures. The closed-loop camera series network offers "closed-loop constraints" for the camera series network: the deformation of the reference points observed by different measurement stations is identical. The closed-loop constraints improve the measurement accuracy using camera series network. Furthermore, multiple closed-loops and the flexible combination of camera series network are introduced to facilitate more complex deformation measurement tasks. Simulated results show that the closed-loop constraints can enhance the measurement accuracy of camera series network effectively.

우리 나라 공급업체의 유통경로구성원 성과 특정 (Suppliers Measurement of Channel Member Performance in Korea)

  • 김종훈;한장희
    • 한국유통학회지:유통연구
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    • 제4권2호
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    • pp.21-39
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    • 1999
  • This study investigates the general applicability of the measurement scale for assessing channel-member performance for the supplier's view that was proposed by Kumar, and Achrol (1992). First, we attempted to examine whether the measurement-scale could be used without any change; the results from the initial data-analysis proposed that the scale needed a certain amount of a revision for further utilization. It seemed that the scale needed some adjustment for being applied to this study; their scale was developed with the data collected from the network of independent dealers handling multiple product items or multiple brands in the U.S. and Canada, while the data of this study were provided by a Korean car manufacturer having a dealer network selling and servicing only its own brand without ownership. Accordingly, we determined that it was necessary to develop a newly finalized performance-measurement scale revising Kumar et al.'s. During the data-analysis of the data resulted in a scale of fifteen items measuring three facets-financial performance, behavioral performance, and competence, each of which consisted of five items respectively. This empirically developed scale looked more valid for the situation of this study than the Kumar, Stern, and Achrol's which was composed of twenty-one items measuring seven facets--three items each.

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데오도라이트 시스템의 측정 오차 요인에 대한 연구 (A Study on Measurement Error Factors of Theodolite System)

  • 윤용식;이동주
    • 한국공작기계학회논문집
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    • 제12권4호
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    • pp.36-42
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    • 2003
  • Theodolite measurement system is non-contacted 3-dimensional measurement system. The system accuracy is ${\pm}0.5mm$or better for distance 0~100m. And the system is used for the measurement of a product of middle and large scale. This study is performed for the measurement error factors of the system. We could know that the main measurement error factors are temperature, illumination and skill. Also, we performed the study for the effect according to the height difference of scale bar.

데오도라이트 시스템의 측정 불확도 연구 (A Study on Measurement Uncertainty of Theodolite System)

  • 이건탁;이동주;박흥철;오재명
    • 한국공작기계학회:학술대회논문집
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    • 한국공작기계학회 2003년도 춘계학술대회 논문집
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    • pp.229-233
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    • 2003
  • Theodolite measurement system is non-contacted 3-dimensional measurement system. The system accuracy is 0.5 mm or better for distance 0 ~ 100m. And the system is used for a product of middle and large scale. This study is performed for the measurement uncertainty of the system. We could know that the main uncertainty factors are temperature, illumination and skill. And, we perform the study for the effect according to the height difference of scale bar. And, we calculated the measurement uncertainty with those factors.

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Evidence from Turkish and Syrian People for the Measurement Invariance of the CBBE Scale and Clues for the Distribution Strategies of the Brands

  • Ahmet KAYAOGLU;Yavuz Selim GULMEZ
    • 유통과학연구
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    • 제21권5호
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    • pp.75-82
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    • 2023
  • Purpose: This research aims to test the measurement invariance of the consumer-based brand equity scale on Turkish and Syrian university students who live together but are from different cultural groups. Research design, data, and methodology: The consumer-based brand equity scale developed by Buil et al. (2008) is applied to the participants. In testing the consumer-based brand equity scale, the Netflix brand, which is considered well-known by both cultural groups, is preferred. It is thought that choosing an internationally recognized brand would facilitate the conduct of this research. Structural invariance and measurement invariance are tested using structural equation modeling. Results: The consumer-based brand equity scale has measurement invariance on Turkish and Syrian university students. Therefore, it has been revealed that the responses of participants from both cultures regarding the Netflix brand are comparable. Conclusion: The findings of the study provide clues for practitioners to review their distribution strategies. As a matter of fact, cultural studies conducted in different countries are common. Still, the originality of this study is ensured by the profile of participants who live in the same country but come from different countries.

한국형 결혼만족도 척도 개발을 위한 이론적 고찰 (A Theoretical Review for developing a Korean Type Marital Satisfaction Scale)

  • 정현숙
    • 대한가정학회지
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    • 제39권11호
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    • pp.89-106
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    • 2001
  • The purpose of this study is to critically review the related issues of marital satisfaction scale in order to develop a Korean Type Marital Satisfaction Scale. Especially definitional ambiguity, unit of analysis theory of marital satisfaction and issues about measurement and cultural implication are reviewed. Also a section deals with suggestions that could be considered to develop Korean Type Marital Satisfaction Scale.

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Electro-spray 마이크로 추진 장치 개발 및 나노 크기의 힘 측정 (Development of electro-spray micro-thruster and measurement of nano-scale thrust)

  • 이영종;;변도영
    • 한국추진공학회:학술대회논문집
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    • 한국추진공학회 2007년도 제28회 춘계학술대회논문집
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    • pp.45-48
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    • 2007
  • 기존에 사용되는 피에조 타입의 센서는 추력의 측정 범위가 제한되어 있으므로 이를 개선하고자 레이져 변위측정기와 cantilever를 이용하여 변위 측정 장치를 개선하였고, 스테인레스 캐필러리를 이용하여 추력 모델을 만든 후 추력을 측정하였다. 이와 더불어 extrude shape의 노즐을 갖는 마이크로 추력 장치를 PMMA(Polymethyl methacrylate)를 이용하여 공정하였으며, 매니스커스의 형상 변화를 관찰하였다.

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