Abstract: The importance of the work of Huygens and Hooke on the use of the conical pendulum to the development of control theory and practice is discussed. It is argued that their work had little ...

Abstract: Free wave propagation in periodically stiffened cylindrical shells is investigated using a periodic finite element method developed by the authors. The modification of longitudinal wave modes was ...

Abstract: An optimization model that determines the minimum cost detention and drainage channel system for a watershed is described. The model determines the location and size of detention basins, the size, type, and number of outlet ...

Abstract: Earlier numerical work on viscous flow in the inlet region of a straight channel indicated some curious features in the velocity profiles. These are now investigated further to establish that ...