Southern African countries have a good cultural tourism development potential, and many countries in the region have identifi ed the development of cultural tourism as one of the key growth areas in tourism. A specifi c element of cultural tourism is based on crafts that are sold for visitors in various sites and market places. Crafts and craft markets are relatively visible in the Southern Afr...

At the present time several hundred hydrofoil craft are in service throughout the world. The upsurge in the use of these craft did not really begin until the late 1950s, although fascination with the idea of supporting small boats with underwater wings dates well back into the nineteenth century. About he turn of the century, hydrofoil flight was achieved, to be followed in a few years by Bell ...

As statistical independence exists between marine mammals sound and watercraft emitted noise and among different organism signals, the study introduces blind source separation into marine mammal signals processing. Blind source separation with single hydrophone is a special underdetermined blind separation problem and blind source separation based on matrix calculating is no longer suitable. Th...

This paper presents a novel marine mapping system using an Autonomous Surface Craft (ASC). The platform includes an extensive sensor suite for mapping environments both above and below the water surface. A relatively small hull size and shallow draft permits operation in cluttered and shallow environments. We address the Simultaneous Mapping and Localization (SLAM) problem for concurrent mappin...