Abstract: A pole-shaped aircraft framework assembly including a first plug-and-turn connector forming a first end, a second plug-and-turn connector forming a second end, the second end opposite the first end, a first rod extending from the first plug-and-turn connector towards the second plug-and-turn connector, and a coupling component coupled to the second plug-and-turn connector for detachable coupling with the first rod. The first rod has a circumferential outer surface including alternately on a circumferential path in a cross-sectional plane of the first rod a ridged section and a plain section. The coupling component includes a tubular part having a circumferential inner surface including alternately on a circumferential path in a cross-sectional plane of the tubular part at least one ridged section and at least one plain section. One of the first rod and the coupling component is rotatable relative to the other one, engaging respective ridges of the first rod and the coupling component.

Abstract: A pole-shaped aircraft framework assembly including a first plug-and-turn connector forming a first end, a second plug-and-turn connector forming a second end, the second end opposite the first end, a first rod extending from the first plug-and-turn connector towards the second plug-and-turn connector, and a coupling component coupled to the second plug-and-turn connector for detachable coupling with the first rod. The first rod has a circumferential outer surface including alternately on a circumferential path in a cross-sectional plane of the first rod a ridged section and a plain section. The coupling component includes a tubular part having a circumferential inner surface including alternately on a circumferential path in a cross-sectional plane of the tubular part at least one ridged section and at least one plain section. One of the first rod and the coupling component is rotatable relative to the other one, engaging respective ridges of the first rod and the coupling component.

Abstract: An energy system having a fuel cell arrangement, wherein the fuel cell arrangement has at least one fuel cell and the fuel cell arrangement has at least one first electrical contact and at least one second electrical contact for tapping off electrically generated energy of the fuel cell arrangement. An electrical component for warming up the fuel cell arrangement is electrically connectable between the first electrical contact and the second electrical contact. At least some of the electrical energy flow which is necessary to release the thermal energy can be fed back to the energy system by the electrical component.

Abstract: The present invention discloses a control device for an electric machine comprising a sensor interface designed to receive a sensor signal from a position sensor of the electric machine, wherein the position sensor is designed to detect the rotor position of the electric machine, a signal generator designed to generate a beat signal that corresponds to the sensor signal with a signal frequency increased by a beat frequency, a summation unit designed to form a sum signal from the sum of the beat signal with the sensor signal, and a correction unit designed to calculate a correction value for the sensor signal on the basis of a minimum of the sum signal. The present invention further discloses a corresponding method and a corresponding motor controller.

Abstract: The present invention discloses a control device for an electric machine comprising a sensor interface designed to receive a sensor signal from a position sensor of the electric machine, wherein the position sensor is designed to detect the rotor position of the electric machine, a signal generator designed to generate a beat signal that corresponds to the sensor signal with a signal frequency increased by a beat frequency, a summation unit designed to form a sum signal from the sum of the beat signal with the sensor signal, and a correction unit designed to calculate a correction value for the sensor signal on the basis of a minimum of the sum signal. The present invention further discloses a corresponding method and a corresponding motor controller.

Abstract: An energy system having a fuel cell arrangement, wherein the fuel cell arrangement has at least one fuel cell and the fuel cell arrangement has at least one first electrical contact and at least one second electrical contact for tapping off electrically generated energy of the fuel cell arrangement. An electrical component for warming up the fuel cell arrangement is electrically connectable between the first electrical contact and the second electrical contact. At least some of the electrical energy flow which is necessary to release the thermal energy can be fed back to the energy system by the electrical component.

Abstract: A hybrid system (1) having at least one metal/air battery (10) and at least one fuel cell stack (20), in which the hybrid system (1) has an air supply device (2) with an air feed line (3), an intake device (5) and a compressor (4) for compressing the air stream in the air feed line (3), the air supply device (2) being designed both for supplying air to the at least one metal/air battery (10) and for supplying air to the at least one fuel cell stack (20) with an air stream subjected to excess pressure. A method for supplying air to a hybrid system (1) of this kind having at least one metal/air battery (10) and at least one fuel cell stack (20).

Abstract: A method and instrument for determining the amounts of metabolic products in blood using a laser beam guided through an ATR plate placed against a blood supplied biological tissue. The intensity of the beam is then detected after being affected by the blood containing the metabolic elements and is used to determine the amounts of metabolic products in the blood.