• 대한치과교정학회:학술대회논문집
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• 2004.11a
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• pp.41.1-41.1
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• 2004

• 대한치과교정학회:학술대회논문집
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• 2001.11a
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• pp.27.2-27.2
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• 2001

• 대한치과교정학회:학술대회논문집
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• 2002.11a
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• pp.20.1-20.1
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• 2002

• 대한치과교정학회:학술대회논문집
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• 2002.11a
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• pp.31.2-31.2
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• 2002

• 대한치과교정학회:학술대회논문집
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• 2002.11a
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• pp.26.2-27
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• 2002

• 대한치과교정학회:학술대회논문집
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• 2005.11a
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• pp.67.1-67.1
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• 2005

• 대한치과교정학회:학술대회논문집
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• 1998.10a
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• pp.73.2-73.2
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• 1998

• 대한치과교정학회:학술대회논문집
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• 1998.10a
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• pp.79.1-79.1
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• 1998

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.39 no.7
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• pp.682-687
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• 2011

Calibration mirror mechanism has been widely used for on-board calibration with black body. The calibration mirror is deployed to reflect the radiation energy from the black body to the image sensor for calibrating the sensor system. After the calibration, the calibration mirror is stowed not to hide a main optical path. It also has a fail-safe function which can stow the mirror by just removing the input power of motor when the calibration mirror is stopped at certain position during the calibration. In the present work, the operation concept, design, torque analysis and functional test results of the calibration mirror mechanism with the aforementioned function have been introduced and investigated.

• The korean journal of orthodontics
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• v.31 no.4 s.87
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• pp.393-401
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• 2001

The purposes of this study were to assess the treatment results in orthodontic department, Kyung Hee University, to evaluate the occlusion at 2 year follow-up control, in relation to the original malocclusion, and changes occurring in the follow-up period, and to determine whether treatment and posttreatment changes of the PAR index were related to the original Angle classification Dental study casts of 25 patients in permanent dentition were evaluated using Peer Assessment Rating (PAR) index. The PAR index was measured at the pretreatment stage, immediately after treatment, and at 2 yews posttreatment. The following results were obtained : 1. The treatment reduced the PAR index by 85.05% and it indicates that KHDC clinic has a high standard of treatment 2. The follow-up result of 75.40% PAR score reduction implies a gain of 9.55% of posttreatment PAR score during follow-up period. 3. There is no relationship between the treatment changes of the PAR index and the orignal Angle classification.