Affiliation: | (1) Centre dʼIng?nierie des Syst?mes dʼAutomatique et de M?canique Appliqu?e, Universit? Catholique de Louvain, 4 Avenue G. Lema?tre, 1348 Louvain-la-Neuve, Belgium;(2) Department of Mechanical Engineering, Korea University, Anam-dong, Sungbuk-ku, 136-701 Seoul, Korea |