Papers by Author: Ja Choon Koo

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Authors: Seong In Moon, Ja Choon Koo, Jae Boong Choi, Young Jin Kim, Sung Sik Choi, Jeoung Gwen Lee
1773
Authors: Yun Jae Kim, Ja Choon Koo, Seong In Moon, Young Jin Kim
1767
Authors: Hui Je Cho, Dae Sung Bae, Jin Hwan Choi, Ja Choon Koo

Abstract: Dynamic analysis of many mechanical systems is often involved with contacts among bodies. This paper presents an efficient and...

129
Authors: Ja Choon Koo, H.S. Kim, Jae Boong Choi, Young Jin Kim

Abstract: Application of Hamilton’s theorem is limited to rigid body dynamics problems in spite of its benefit that always yield a set of first order...

716
Authors: Ja Choon Koo, Hyouk Ryeol Choi, Min Young Jung, Kwang Mok Jung, Jae Do Nam, Young Kwan Lee

Abstract: Smart polymer based actuators have demonstrated various benefits over the traditional electromagnetic or piezoelectric-material actuators....

665
Authors: Hyouk Ryeol Choi, Kwang Mok Jung, Min Young Jung, Ja Choon Koo, Jae Do Nam, Young Kwan Lee

Abstract: As ElectroActive Polymers (EAPs) attract keen attentions from various engineering fields, they have been proven more beneficial over the...

1193
Authors: Ja Choon Koo, Kwang Mok Jung, Min Young Jung, Hyouk Ryeol Choi, Jae Do Nam, Young Kwan Lee

Abstract: Many publications have demonstrated advantages of smart polymer actuators over the traditional electromagnetic transducers. One of the most...

1187
Authors: Hyouk Ryeol Choi, Kwang Mok Jung, Ja Choon Koo, Jae Do Nam, Young Kwan Lee, Mi Suk Cho

Abstract: ElectroActive Polymers (EAPs) are emerging as new actuating means replacing the existing technologies such as piezoelectric, electrostatic,...

622
Authors: Byung Sun Kim, Dock Jin Lee, Ja Choon Koo, Jae Boong Choi, Young Jin Kim, Jong Nam Lee, Young Bee Chu

Abstract: As the TFT-LCDs are getting more attention for the next generation display device, specifications of the mechanical functionalities of the...

1679
Authors: Dong Ho Oh, Nam Hoon Lee, Ja Choon Koo, Hyeon Ki Choi, Yeon Sun Choi

Abstract: As the fluid dynamic bearing spindles are to be actively adopted to various small form factor mobile applications, mechanical...

1595
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