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    Article

    Prediction of transitional behavior of out-of-plane welding distortion by solar radiation in upper deck of hull structure

    During hull construction, solar radiation in summer is one of the major factors hindering productivity because it induces unnecessary correction work due to the excessive out-of-plane distortion on the decks e...

    Dong-Ju Lee, Sang-Beom Shin, Myung-Hyun Kim in Journal of Marine Science and Technology (2020)

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    Article

    Design of hybrid type’s optical pickup actuator for system stability in high density reading and recording

    Recently, there has been a trend to have large capacity and high data transfer rate in optical disk drive. Pickup actuator also should have high performance for satisfying this trend. Since moving magnet type ...

    Dong-Ju Lee, Jung-Hyun Woo, No-Cheol Park, Jeong-hoon Yoo in Microsystem Technologies (2009)

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    Article

    Design of swing arm actuator for small and slim optical disc drives

    Recent advancements in mobile devices have fueled a requirement for information storage systems with characteristics such as subminiature size, low cost, and minimum power consumption. Small optical disk drive...

    Dong-Ju Lee, Je-Seung Oh, Sa-Ung Kim, Jeong-Hoon Yoo in Microsystem Technologies (2007)

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    Article

    Development of symmetric type slim optical pickup actuator for flexible disk system

    Recently, in information storage devices, several characteristics such as high data transfer rate, large storage capacity and small drive size are required as high-definition television (HDTV) broadcasting, mo...

    Dong-Ju Lee, Choong Kim, Myeong-Gyu Song, Jung-Hyun Woo in Microsystem Technologies (2007)

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    Article

    Design and analysis of two-wire focusing actuator for small-sized ODD with linear VCM type’s actuator

    Recent advancements in mobile devices have fueled a requirement for information storage systems with characteristics such as subminiature size, low cost, and minimum power consumption. Small optical disk drive...

    Dong-Ju Lee, Se-June Park, Ki-Suk Woo, No-Cheol Park in Microsystem Technologies (2005)