Abstract: A method for determining an actual geometry of a track by a track inspection vehicle which is movable on the track, wherein reference points positioned in a lateral environment of the track are automatically recorded by a non-contacting recording system arranged on the track inspection vehicle and their respective actual distance from the track is determined. A three-dimensional trajectory of the track is recorded by an inertial measuring system arranged on the track inspection vehicle, wherein the trajectory is divided by a computing unit into trajectory sections each having a section starting point related to a first reference point and a section end point related to a second reference point, wherein a virtual longitudinal chord is defined for each trajectory section in relation to the assigned reference points, and wherein actual distances between the trajectory and the respectively defined longitudinal chord are calculated for each trajectory section.

Abstract: A device for treating a biological liquid has a housing with a first chamber defining a cavity and which is adapted to receive a liquid to be treated. At least one gas exchanger is at least partly disposed in the first chamber. An inlet portion is formed in a first surface of the housing for the inlet of the liquid to be treated into the chamber. The inlet portion is formed at an acute angle relative to the surface of the housing. Such a device allows a gas exchange in a lung assist method for example.

Abstract: A device for treating a biological liquid has a housing with a first chamber defining a cavity and which is adapted to receive a liquid to be treated. At least one gas exchanger is at least partly disposed in the first chamber. An inlet portion is formed in a first surface of the housing for the inlet of the liquid to be treated into the chamber. The inlet portion is formed at an acute angle relative to the surface of the housing. Such a device allows a gas exchange in a lung assist method for example.

Abstract: A fastening system for fixing a first assembly unit to a second component for use especially in the motor vehicle industry is presented, which has at least one fastening screw, a corresponding first preassembly thread on the first assembly unit, in which the fastening screw is fixed after the preassembly, and a fastening thread on the first assembly unit or on the second component for fixing the first assembly unit to the second component by means of the fastening screw. The fastening screw has at least two threaded areas for preassembly and for fastening with different thread pitches, wherein the preassembly thread and the fastening thread as well as the threaded areas are provided with different pitches and the second threaded area, which is used for fastening and is facing away from the screw head, has a smaller diameter than the threaded area that is used for the preassembly and is adjacent to the screw head.