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Recognition of Hangul Characters with Input Noise (잡음성분을 포함한 한글 문자 인식)

  • Chang, Sun-Young;Cho, Dong-Sub
    • Proceedings of the KIEE Conference
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    • 1990.11a
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    • pp.465-469
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    • 1990

  • This thesis proposes a new scheme for the recognition of presegmented Hangul characters. The proposed approach is rather insensitive to noise and variation by applying 2 dimensional convolution to learning patterns. In this thesis, the hangul recognition neural network is implemented in the basis of this scheme and recognition rate is analyzed in boo cases of learning which are learning by binary patterns and learning by binary patterns and convoluted patterns together.

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Changes in Cell Cycle-related Genes Expression of Chineses Hamster Ovary Cells cultured using Serum-free Media

  • Seo, Sung-Keum;Park, Hong-Woo;Choe, Tae-Boo
    • 한국생물공학회:학술대회논문집
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    • 2003.10a
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    • pp.153-158
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    • 2003

  • The genome-wide program of gene expression during the cell division cycle response to serum free media in chinese hamster ovary(CHO) cells was characterized using cDNA microarrays. Many transcripts of genes showed variation during the cell cycle. Characterization is critical step toward understanding the basic cell cycle processes and serum-free media role in CHO cells

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Comparison of the results by the Matrix method and the Coupled wave method in analyzing Bragg Reflector structures

  • Kim, Boo-Gyoun-
    • Proceedings of the Optical Society of Korea Conference
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    • 1990.02a
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    • pp.87-90
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    • 1990

  • We compare the reflectivity spectrum and phase change of Bragg reflectors obtained by the matrix method and the coupled wave method. We show that the results obtained by the two methods agree well generally and the discrepancy between the results obtained by the two methods increases as the fractional refractive index difference between adjacent layers increases and/or the absorption loss increases, due to the approximations inherent in the coupled wave method for the analysis of multiple dielectric layers.

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