Abstract: An arrangement, system and method are described which enhance efficiency, reduce the stray field of wireless power transfer, and make use of special coil geometries for transmitter and receiver. The coil geometry is an approximation of a multipole current. Such currents have a faster decaying electromagnetic field compared to traditional coils. This allows higher power densities to be transferred.

Abstract: The use of measurement information from traditional process variables along with measurement signals from the refining zones in refiners for the refining and grinding of pulp is disclosed for estimating the quality of pulp output from the refiner lines. Control of the refining process is thus improved by means of a method used with a series of refiners utilizing estimated pulp quality information from each refiner in order to be able to rapidly control the refining disturbances in the process.

Abstract: A method for controlling a refining zone and to measure process variables directly in the refining zones of refiners in the pulp and paper industry is provided, the difference between the distributed axial force and the distributed steam force for high consistency refiners, or alternatively the liquid and pulp phase related forces for low consistency refiners, along the radius of the segments within the refiner is used to prevent fiber cutting and plate clash of the segments. The method of the present invention is also applicable to continuous control of the refining process close to limits of the machinery involved.

Abstract: The present invention concerns a ballistic protection against objects such as projectiles from fire arms, alternatively scatter from for example hand grenades. The protection comprises an enclosure (1, 2, 4, 5, 6, 7, 9) adapted so that the object (10) can penetrate the enclosure (1, 2, 4, 5, 6, 7, 9) in at least one area (2); at least one intermediate layer (3) comprising granules (27) arranged within the enclosure (1, 2, 4, 5, 6, 7, 9), which intermediate layer (3) and enclosure (1, 2, 4, 5, 6, 7, 9) are arranged to decelerate said object (10).