Abstract: The present invention describes a water recirculation system 1 intended for recycling of water or discarding of water not suitable to recycle, said water recirculation system 1 comprising a heating unit 2 with one cold-side space 3 intended for a water flow in the water recirculation system 1 to be heated and one hot-side space 4 arranged to provide a heating fluid which indirectly heats said water flow in the cold-side space 3, said hot-side space 4 being connected to any of the following: a reservoir comprising hot glycol or a hot water/glycol mixture; and/or one side of a heat-exchanger arrangement with water on one side and glycol or a water/glycol mixture on the other side.

Abstract: The present invention describes a water recirculation system intended for recycling of water or discarding of water not suitable to recycle, said water recirculation system (1) comprising a flow path for recirculation (50), at least one water treating unit (6), and a sensor unit (7) arranged for measurement of at least water quality, and wherein the sensor unit (7) is connected to a control unit which decides if water should be recycled or discarded in a point of separation (30) based on the measurement of the water quality, said water recirculation system (1) also comprises a first heating source (00), and wherein the water recirculation system (1) also comprises a second heating source (200).

Abstract: A fingerprint identification/verification system using bitmaps of a stored fingerprint to correlate with a bitmap of an input fingerprint, wherein an accurate reference point is located and selected two-dimensional areas in the vicinity of the reference point of the input image of the fingerprint are correlated with stored fingerprint recognition information to determine if the input fingerprint image and the stored fingerprint recognition information are sufficiently similar to identify/verify the input fingerprint.

Abstract: A fingerprint identification/verification system using bitmaps of a stored fingerprint to correlate with a bitmap of an input fingerprint, wherein an accurate reference point is located and selected two-dimensional areas in the vicinity of the reference point of the input image of the fingerprint are correlated with stored fingerprint recognition information to determine if the input fingerprint image and the stored fingerprint recognition information are sufficiently similar to identify/verify the input fingerprint.