Abstract: System (10) for controlling a vessel, which vessel is provided with: propulsion means (40) for propelling the vessel, directional means for determining the direction in which the vessel is propelled, which system is provided with: speed regulating means (32, 36) for influencing the propulsion supplied by the propulsion means, steering means (30, 34) for influencing the directional means, at least one or more navigational aids (28) which provide those who are operating the speed regulating means and/or the steering means with data relating to the navigation, in which the system is provided with means by which the data (14, 16, 22, 24) coming from the navigational aid (28) is used to determine areas where the vessel must not go, and in which the speed regulating means or the steering means or both are provided with limiters (32, 36) by means of which the operation of the abovementioned means is rendered difficult if such operation would lead to the vessel moving in the direction of the abovementioned areas.

Abstract: A method and device for heating and cooling, such as for the sterilization, pasteurization, drying and/or roasting, of food products, such as nuts and beans, for example whole and crushed peanuts and coffee and cocoa beans, comprising bringing the raw food products into contact with a heated granular material, separating of the granular material from the food products after the heat transfer from the heated granular material to the food products, and the subsequent cooling of the food products, the cooling of the food products taking place by means of a granular material which is first conveyed to the product to be cooled and is separated therefrom after the cooling.

Abstract: A hip joint endoprosthesis has a downward tapering stem (1) which is to be anchored in the femur and is composed of a main part (7) connected to the condyle head (4) and of a plurality of wedge pieces (10) which are movably guided longitudinally along the main part by means of cooperating guide surfaces (11,12). The friction on the guide surfaces between the main part (7) and the wedge pieces (10) is smaller than the friction caused by the outer surface (13), formed for promoting adhesion, of wedge pieces (10) on the bone. When the medullary cavity receiving the prosthesis stem widens, the load on the main part (7) causes an expansion of the wedge pieces (10) and hence an adaptation of the shape of the prosthesis.