Semi-active control devices, also called “Intelligent” control devices, constitute the positive aspects of both the passive and active control devices. A semi-active control strategy is similar to the active control strategy, but this control device has been shown to be more energy-efficient than active devices. A particular type of semi-active control device, the Variable Stiffness Device (VSD...

In this paper, I review some current technologies and software used in collaborative knowledge building and learning in general and then discuss the interactive system I designed to facilitate collaborative knowledge building and learning in tertiary education. This system is used in conjunction with a wireless intelligent personal electronic response system in the classroom. Contributors and l...