Abstract: A measuring cell for receiving a blood sample is designed such that it can be transilluminated with a light source. The light source and a means for determining the luminous intensity corresponding to the light source can be arranged on the measuring cell for determining the luminous intensity of the light of the light source emerging from the measuring cell, wherein the measuring cell has constant, predefined properties with respect to the light of the light source, so that the blood oxygen content of the blood sample can be detected on the means for determining the luminous intensity due to a change of the luminous intensity of the light of the light source.

Abstract: A measuring cell for receiving a blood sample is designed such that it can be transilluminated with a light source. The light source and a means for determining the luminous intensity corresponding to the light source can be arranged on the measuring cell for determining the luminous intensity of the light of the light source emerging from the measuring cell, wherein the measuring cell has constant, predefined properties with respect to the light of the light source, so that the blood oxygen content of the blood sample can be detected on the means for determining the luminous intensity due to a change of the luminous intensity of the light of the light source.

Abstract: A method of controlling an internal combustion engine is provided, in which at least two operating states are differentiated, at least one operating variable of the engine being controlled, a setpoint torque being predetermined on the basis of the optimum operating point for the respective operating state and on the basis of the position of a throttle valve operated by the driver, and the value of at least one operating variable to be output being determined from the setpoint torque. A cylinder-individual firing angle retardation value is predetermined by a knock control system, so that the cylinder-individual firing angle retardation value is taken into account directly in calculating the setpoint torque.

Abstract: A method of controlling an internal combustion engine is described; in this method, at least two operating states are differentiated, at least one operating variable of the engine being controlled, a setpoint torque being predetermined on the basis of the optimum operating point for the respective operating state and on the basis of the position of a throttle valve operated by the driver, the value of at least one operating variable to be output being determined from the setpoint torque. A cylinder-individual firing angle retardation value is predetermined by a knock control system, so that the cylinder-individual firing angle retardation value is taken into account directly in calculating the setpoint torque.

Abstract: A receptacle includes a receiving chamber into which an injection fluid is to be injected. An injection unit includes a syringe having a needle adapted to pierce a diaphragm of the receptacle. The injection unit has a second needle [(28)] that may be advanced through a further diaphragm into a return chamber of the receptacle. The second needle is secured to a sliding pipe coupled to the syringe via a coupling means. Both needles are advanced simultaneously into the receptacle. Then, the syringe is ejected by moving the syringe plunger. The liquid volume displaced from the return chamber reaches the rear barrel chamber via the sliding pipe, the volume of the rear barrel chamber increasing by the amount in which the injection fluid has been ejected, subtracting the volume of the plunger rod. The exchange of liquid is supported by the suction effect of the partial vacuum generated by the lowering of the syringe plunger. The fluid of the injection device is sealed tight against the environment.