• Proceedings of the Korean Society of Plant Pathology Conference
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• 2004.10a
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• pp.46-46
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• 2004

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• Proceedings of the Korean Magnestics Society Conference
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• 2007.05a
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• pp.168.1-168.1
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• 2007

• The Transactions of The Korean Institute of Electrical Engineers
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• v.64 no.4
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• pp.605-611
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• 2015

The measurement and analysis of angular change have been studied in many fields. This study developed an angle measurement technique with optical fiber and photodiode. The position and attached angle of photodiode were investigated to find the proper combination of parameter. The results showed that the increased measuring range was achieved when the position of detector was away from the center of rotation. Inverse mathematical model was used to obtain angular changes with an optical fiber. The applications of this study include in optical sensor, joint angle measurement, and sport science.

• Journal of Electrical Engineering and Technology
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• v.10 no.5
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• pp.2155-2161
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• 2015

This study suggests an optical method to measure cardinal of gait (step width, step length, and stride length) with position sensitive detector (PSD). The effect of reflector’s shape (flat and cylinder) on the PSD output voltage was examined for the application of the suggested system to real situations with a curved shape reflector (e.g. shoes). Various mathematical models were evaluated to find the optimal equation for the distance measurement. Considering the effect of shape on detected signal, the inverse polynomial model was developed. The suggested method is simple to operate, low in cost, small in size, and can evaluate gait parameters in real time. This method is expected to be useful in the field of rehabilitation and sport science

• Bulletin of the Korean Chemical Society
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• v.34 no.6
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• pp.1879-1882
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• 2013

• Proceedings of the Korean Society of Crop Science Conference
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• 2021.04a
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• pp.19-19
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• 2021

• Journal of the Korean Chemical Society
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• v.61 no.4
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• pp.185-190
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• 2017

One-dimensional CdTe nanorods (NRs) are obtained by the reaction of various Cd precursors with single crystalline Te nanorod templates, which are pre-synthesized from Te precursors by a simple and reproducible solvothermal method. Throughout the process, the diffraction intensity of different crystal facets of single crystalline Te NRs varied with reaction times. Finally, by alloying Cd ions along the axial direction of Te NRs, polycrystalline cubic phase CdTe NRs with diameters of 80-150 nm and length up to $1.2-2.4{\mu}m$ are obtained. The nucleation and growth processes of Te and CdTe NRs are discussed in details, and their properties are characterized by XRD, SEM, TEM, Raman scattering, and UV-vis absorption spectra. It was found that the key elements of synthesizing CdTe NRs such as reaction temperatures and Cd sources will strongly influence the final shape of CdTe NRs.

• Proceedings of the Korean Magnestics Society Conference
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• 2008.12a
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• pp.139.1-139.1
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• 2008

• Proceedings of the Korean Magnestics Society Conference
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• 2008.12a
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• pp.203.1-203.1
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• 2008

• Proceedings of the Korean Magnestics Society Conference
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• 2008.12a
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• pp.260.2-260.2
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• 2008