Abstract: A system for the control and monitoring of the distribution of goods. A first unit is mounted with the goods to be transported, specifically a control and monitoring unit in which freight-specific data are stored and in which sensors are also provided which sense the momentary condition of the distribution process and write it into corresponding memories. Access to the control and monitoring units takes place by way of a normal interface by means of an active memory card which, in turn, can be connected with an analysis unit by means of which a log of the distribution process can be established.

Abstract: A wall having a surface in contact with a fluid, has a surface configuration which reduces drag if there is relative movement between the surface and the fluid. The wall is made of metal or of fiber composite material in such a way that sharp edged or fine ridges and grooves between the ridges are formed as integral surface components of the wall structure for simplifying the construction, reducing the weight, and increasing the useful life of structures having such walls.