Abstract: In a method and apparatus for movement correction for a magnetic resonance fingerprinting examination on an object under examination, a magnetic resonance signal shape of a region of the object is acquired using the magnetic resonance fingerprinting method, movement data for at least one sub-region of the region are detected movement information is generated from the acquired movement data, the acquired magnetic resonance signal shape is corrected with reference to the generated movement information, a signal comparison of the corrected magnetic resonance signal shape is made with multiple database signal shapes stored in a database, with a database value of at least one tissue parameter being assigned to each of the database signal shapes. A value of the at least one tissue parameter is assigned to the corrected signal shape as a result of the signal comparison.

Abstract: A system transmits electrical power between a first and a second alternating voltage network. A self-commutated converter can be connected to the second alternating voltage network, the converter being connected to an unregulated rectifier via a direct voltage connection. The unregulated rectifier can be connected to the first alternating voltage network on an alternating voltage side. The system has a network generation device, which can be connected to the first alternating voltage network and is provided for generating an alternating voltage in the first alternating voltage network. The network generation device is configured to exchange reactive power and active power with the first alternating voltage network. Furthermore, a method is provided which stabilizes a network frequency of the first alternating voltage network, in which the network frequency in the first alternating voltage network is regulated by changing a voltage at the direct voltage terminal of the self-commutated converter.

Abstract: A method for magnetic resonance fingerprinting and to a magnetic resonance device is provided. The method for magnetic resonance fingerprinting includes the following method steps—detecting a magnetic resonance signal waveform of an examination area of an examination object by means of a magnetic resonance fingerprinting method, comparing the detected magnetic resonance signal waveform with a number of signal waveforms stored in a database, wherein a database value of at least one tissue parameter is assigned to each of the database signal waveforms, and determining a value of the at least one tissue parameter on the basis of the signal comparison, wherein an influence of a temperature of the examination object on the magnetic resonance signal waveform is taken into consideration in the further processing of the magnetic resonance signal waveform.

Abstract: A rail vehicle includes a chassis, a vehicle structure and a support unit disposed at the end face of the rail vehicle. The vehicle is comparatively lightweight and economical and can also advantageously perform other tasks in addition to supporting a track reamer. The support unit includes a plateau section which is part of the vehicle structure and includes a climbing protection device on its end face and a track reamer holder for supporting a track reamer. The track reamer holder is disposed below the plateau section and is rigidly secured thereto.

Abstract: An RF pulse alignment method for determining transmit scaling factors used in the control of a magnetic resonance system having a number of radiofrequency transmit channels, via which RF pulse trains are transmitted in parallel during operation, is provided. A common reference pulse train is specified for a number of the radiofrequency transmit channels in the course of the control function. A plurality of candidate images of an object that is to be examined are acquired using different candidate sets of transmit scaling factors. Optimal transmit scaling factors with respect to a predefined criterion are selected for each of the radiofrequency transmit channels based on the acquired candidate images.

Abstract: A magnetic resonance apparatus has a computer designed to emit, on each of at least one control channel, a control signal generated from a sequence of values to control, via each channel, at least one component of the magnetic resonance apparatus. A buffer device is provided for each channel, which includes at least one read control device and a control buffer memory for that control channel. A software tool running on the computer is designed to determine the values as a function of predefined parameters and write them to the control buffer memory. The read control device is designed to read values from the control buffer memory and to supply them, with a read clock derived from a clock that was set independently of the computer, to the respective component. For each of the control buffer memories, the order in which the values are read corresponds to the order in which they are written.

Abstract: A receiver of a magnetic resonance imaging system and a magnetic resonance imaging system are provided. The receiver includes a receiving end for receiving an analog magnetic resonance signal from a local coil of the magnetic resonance imaging system, a sending end for sending a digital magnetic resonance signal to an image reconstruction apparatus of the magnetic resonance imaging system, at least two digital processing channels connected to the sending end for digitizing the analog magnetic resonance signal to the digital magnetic resonance signal, and a channel selection unit connected between the digital processing channels and the receiving end for selecting a corresponding digital processing channel from the digital processing channels according to type information about the local coil. The embodiments may be compatible with many types of local coils without re-designing the local coils, which significantly reduces the cost of the system.

Abstract: A multi-functional fuel nozzle (10) for a combustion turbine engine is provided. A nozzle cap (50) may be disposed at a downstream end of the nozzle. A heat shield (60) is mounted onto the nozzle cap. A plurality of cooling channels (62) is arranged between a forward face of the nozzle cap and a corresponding back side of the heat shield. The plurality of cooling channels may be arranged to discharge cooling air over a forward face of an atomizer assembly in the multi-functional fuel nozzle.

Abstract: A burner device for a gas turbine with a burner body, wherein the burner body has an axial end face, a first supply channel having a first opening in the axial end face, and a burner end element arranged at the axial end face. The burner end element has a first plenum chamber coupled to the first opening of the first supply channel, such that a first fluid is feedable from the first supply channel to the first plenum chamber. The burner end element further has a lattice structure with a plurality of interconnected pores, wherein the first plenum chamber is coupled to the lattice structure for feeding the first fluid into the lattice structure. The lattice structure forms a part of a burner surface which points to a burning chamber of the gas turbine such that a fluid connection between the burning chamber and the lattice structure is formed.

Abstract: A milling device is provided, having a milling tool that rotates about a tool rotation axis, wherein the milling device has a slide, and in that the milling tool is held on a pivot axis that extends transversely, in particular perpendicular, to the tool rotation axis and through the slide, wherein the slide is designed and the position of the milling tool is selected such that, during milling, a traversing movement is effected by manually moving the slide and advance is effected by pivoting the milling tool about the pivot axis. Also provided is a method for milling within a slot of a component, in particular within a blade root receiving slot of a turbomachine, using a milling device.

Abstract: A seal arrangement (15; 26; 43; 50) for sealing an annular gap (14) between a high-pressure steam space (12) and an adjacent low-pressure steam space (13). The gap is defined between two turbine casings (10, 11) each split into two casing halves, the seal arrangement (15; 26; 43; 50) has a seal element (24; 47; 58) which is formed in a segmented and annular manner and extends between the two turbine casings (10, 11) and engages in an annular receiving groove (9, 23; 30, 34; 49; 54) by means of at least one of its radial end regions. The seal arrangement (15; 26; 43; 50) has at least one segmented ring (16, 20; 27, 31; 44; 51; 55) with a first circumferential surface (17, 21; 28, 32; 45; 52, 56) releasably attached to one of the turbine casings (10, 11) in the region of the annular gap (14), and has an opposite second circumferential surface (18, 22; 29, 33; 46; 53, 57) with the annular receiving groove (9, 23; 30, 34; 54) or, in a one-piece form, with the radially projecting annular seal element (47; 58).

Abstract: An exhaust-gas section for a gas turbine, having a surrounding shroud having a first opening, which is arranged in a region of the exhaust-gas section that has a pressure lower than the air pressure of the outer environment of the gas turbine in an operating state of the gas turbine and which forms the outlet of an air channel, the inlet of which is connected to the outer environment of the gas turbine. The air channel has a chamber at the outlet-side end of the air channel, which chamber has a second opening, through which a specified gas mass flow is admitted into the chamber.

Abstract: A part of a casing of a turbomachine is provided. The part is of one piece of material. The part includes a cavity extending along a circumference of a rotational axis of the turbomachine, the cavity having a radially outer wall and a radially inner wall. The part also includes an inlet opening for supplying a cooling medium into the cavity and an outlet opening for discharging the cooling medium from the cavity. The radially inner wall is configured to support at least vanes or rotor seals facing rotor blades of the turbomachine, or a carrier for these vanes or seals. The proposed design provides enhanced efficiency without increasing production costs. The turbomachine may include, for example, a gas turbine, a steam turbine or a compressor.

Abstract: A method and a system collect via a MES, time-stamps of working-statuses of machines and operators, called also actors, for a calculation of a time-dependant component of OLE and OEE indicators in a manufacturing task. The method includes providing a token for assigning to an actor the responsibility of data provision, and defining two meta-statuses for a machine in a task, called operating and booked meta-status respectively. Each meta-status groups a set of machine statuses. A machine is defined to be in an operating meta-status when the machine is in a status engaged in the task and it is able to know and notify its own status. A machine is defined to be in a booked meta-status when the machine is in a status engaged in the task and it is unable to notify its own status.

Abstract: A method for cooling down a gas turbine, wherein the gas turbine is run down from the power operation thereof to cool-down operation, and wherein a liquid is sprayed into air sucked in by a compressor of the gas turbine during the cool-down operation, and wherein the liquid is sprayed into the sucked-in air in dependence on a humidity of the sucked-in air, a flow velocity of cooling air flowing in the gas turbine in the region of at least one flow-guiding component of the gas turbine, which component is to be cooled, and a temperature difference between a temperature of the sucked-in air and a temperature of the at least one flow-guiding component of the gas turbine.

Abstract: An access system for a hub of a wind turbine, wherein the hub comprises a first flange for mounting a first rotor blade, a second flange for mounting a second rotor blade and a third flange for mounting a third rotor blade is provided. The hub comprises a first opening, a second opening and at least a third opening, each of the openings being suitable for accessing an interior of the hub from outside of the hub. The access system comprises a first ladder with a plurality of first rungs, the first ladder extending inward from the first opening, a second ladder with a plurality of second rungs, the second ladder extending inward from the second opening, and a third ladder with a plurality of third rungs, the third ladder extending inward from the third opening.

Abstract: In a method and magnetic resonance (MR) tomography system for generating image data of a subject to be examined, situated in an MR scanner, during a magnetic resonance measurement the subject is repeatedly moved back and forth relative to a magnet/gradient system of the MR scanning between a starting position and an end position. During this movement, portions of a total raw image data set, which is required for the reconstruction of image data for slices of an image stack in the subject, are in each case acquired in different sweeps from the starting position to the end position and/or from the end position to the starting position.

Abstract: An apparatus for cooling an electrical component includes a circuit board with the electrical component disposed on the circuit board. The apparatus includes a cover disposed on the circuit board. The cover and the circuit board form a closed cavity in which the electronic component is disposed. The cavity has a first opening for introduction of a fluid and a second opening for discharge of a fluid.

Abstract: A method for assembling a turbomachine, the turbomachine has an inner part for arranging in an outer case, which has a parting joint extending along an axis and is divisible into an outer-case upper part and an outer-case lower part. The inner part has rotor parts for rotating about the axis during operation and static components and has at least one seal extending in the circumferential direction for sealing a gap between the inner part and a sealing surface of the outer case. The method includes: providing the outer-case lower part, inserting the inner part into the outer-case lower part in a first axial position, joining the outer-case lower part and outer-case upper part, axially moving the inner part in the outer case in relation to the outer case from the first axial position into an axial end position such that the seal comes in contact with the sealing surface.

Abstract: A wheel hub transmission includes an outer surface configured as an end face. The end face has a plurality of radially oriented cooling fins at regular spaced-apart relationship. A cover is provided to cover the cooling fins at the end face. The cover has a central opening and forms with pairs of adjacent ones of the cooling fins a plurality of radially oriented cooling ducts.