Abstract: A computer-implemented method for detecting artefacts in a medical image comprises obtaining input data associated with acquiring at least one image by a medical imaging system, applying a machine-learning model to the input data, whereby information about an image artefact in the image is determined, and providing the information about the image artefact, such as information about the presence and possible root-causes of the image artefact.

Abstract: The present invention provides an electromechanical drive system (1) with at least one electromechanical drive unit (2) to actuate a movable component (3). The electromechanical drive unit (2) comprises a drive unit interface 20 for receiving drive unit control signals (DA), an electromechanical motor (21) controlled by actuation signals (AS) to actuate the component (3), a safety module (4) and a position sensor (5) connected to the safety module via a first data connection (51). The position sensor is adapted to monitor (S1) component (3) and/or motor (21) position and/or speed of the actuated component (3) and/or motor (21); where the safety module (4) is connected to the drive unit interface (20) for receiving the drive unit control signal (DA), and where the safety module is connected to the motor control unit (22) via a third data connection (41) to transmit actuation signals (AS) like actuation speed and desired component position to the motor control unit (22) for actuating (A) the component (3).

Abstract: A method for the operation of a pitch system of a wind turbine with at least one rotor blade, wherein the pitch system has at least one input rectifier and at least one pitch drive, each rotor blade can be rotated around its longitudinal axis by the one pitch drive or by at least one of several pitch drives, each input rectifier is supplied with alternating voltage by a supply network, and each pitch drive is supplied with electric power by the one input rectifier or by at least one of several input rectifiers, each pitch drive is connected to an emergency power storage device, whereby each pitch drive can be supplied with electric power by the emergency power storage device that is connected to it.

Abstract: A converter system with a rectifier (1) and at least two inverters (2) is described and depicted, wherein the rectifier (1) can be supplied with energy from an alternating current source (3), the rectifier (1) is connected to each of the inverters (2) via a common direct voltage circuit (4) in order to supply energy to the inverters (2) and each inverter (2) can be connected to a respective electrical load (5) in order to supply energy to the respective electrical load (5). According to the invention, a converter system that is especially reliable is realized in that a decoupling device (6) is arranged in at least one of the connections between the direct current circuit (4) and one of the inverters (2), wherein the decoupling device (6) prevents electrical energy coming from the inverter (2) from being transmitted in the direction of the direct current circuit (4).

Abstract: A method for the operation of a pitch system of a wind turbine with at least one rotor blade, wherein the pitch system has at least one input rectifier and at least one pitch drive, each rotor blade can be rotated around its longitudinal axis by the one pitch drive or by at least one of several pitch drives, each input rectifier is supplied with alternating voltage by a supply network, and each pitch drive is supplied with electric power by the one input rectifier or by at least one of several input rectifiers, each pitch drive is connected to an emergency power storage device, whereby each pitch drive can be supplied with electric power by the emergency power storage device that is connected to it.

Abstract: A receiver and a method are applied in a wireless communication system for detecting interference with a coexisting radar system. A signal received from an antenna (100) is fed through an analog part (200) and a subsequent digital part (300) of said receiver. The receiver comprising an element (240, 260) with a-priori known attenuation values for a predefined set of frequencies, a first branch-off element (230, 252) for deriving a first detection signal (S10, S22) from the signal before said element (240, 260) and a second branch-off element (251, 270) for deriving a second detection signal (S21, S30, S20) from the signal after said element (240, 260).

Abstract: The invention relates to a method of multiplexing data words in a multicarrier transmit diversity system. The method comprises the step of generating a plurality of data blocks, each data block comprising data words and each data word containing data symbols derived from a data signal, the step of determining for one or more data blocks in dependence on at least one transmission constraint if the data words of said one or more data blocks are to be multiplexed in the time domain or in the frequency domain and the step of multiplexing the data words of the data blocks in accordance with the determination result.