Abstract: Various embodiments include a coil device for a power converter, the device comprising: a cooling plate; and a plurality N?3 of coil windings. The cooling plate is thermally coupled to at least one end face of one of the plurality of coil windings. The coil windings are spatially offset from one another by an angle of 2?/N. The cooling plate defines a cooling channel extending at least partially around each of the plurality of coil windings.

Abstract: Embodiments relates to the field of industrial security technologies to improve visibility of an OT system, thereby effectively preventing a security risk. Embodiments provide an OT monitoring system, including: at least one network sensor to obtain at least one data packet transmitted in an OT system and send the at least one data packet to an OT monitoring apparatus; and the OT monitoring apparatus, to extract, from the obtained at least one data packet, information about at least one asset included in the OT system; and either provide a first application programming interface (API) according to the extracted information, where when the first API is invoked, an asset directory of the OT system is generated; or determine an asset directory of the OT system according to the extracted information. The asset directory of the OT system can improve visibility of the OT system, to more accurately locate the security risk.

Abstract: In a magnetic resonance method and apparatus for determining an item of deformation information of an examination object that exhibits a cyclical movement within an examination subject, a spatial magnetization pattern is generated in an MR scanner, and MR signals are acquired from the subject during at least two cycles of the cyclical movement, with the spatial magnetization exhibiting differences in a subsequent cycle of the movement compared to an earlier cycle. Segmented subsequent MR images are acquired in a subsequent cycle and the examination object is localized therein. This localization of the examination object is then used to localize the examination object in segmented earlier MR images from the earlier cycle, and the item of deformation information is determined in a spatial direction from the segmented earlier MR images.

Abstract: A method for providing a diagnostic message associated with at least one process in a rail vehicle, includes using at least one device of the vehicle to carry out the process, using a diagnostic device of the vehicle associated with the process to produce at least one diagnostic report, and using a data acquisition device to acquire at least one environment dataset. In order to keep the time required for the preprocessing of the information content short despite high data volume, the data acquisition device includes at least one image and/or sound-recording unit. Image and/or sound data being recorded by the image and/or sound-recording unit, the environment dataset containing image and/or sound data, the diagnostic report and the environment dataset are combined by an aggregation unit of the vehicle to produce the diagnostic message. A rail vehicle having an apparatus providing a diagnostic message is also provided.

Abstract: A regulating device for a brushless excitation system for supplying at least one excitation coil of a rotor of a synchronous machine with excitation current, having a detection device to detect a strength of a magnetic flux; a regulating unit to generate an auxiliary excitation DC current supplied to the main excitation machine by rectifying an auxiliary excitation three-phase current, and to regulate the current strength of the auxiliary excitation DC current such that a magnetic flux generated between the rotor and the stator of the main excitation machine is kept constant independently of the current strength of the excitation current; and an adjusting unit rotationally fixed to a rotor shaft of the synchronous machine to generate the excitation current by rectifying an excitation three-phase voltage generated by the main excitation machine and to regulate the current strength of the excitation current supplied to the rotor of the synchronous machine.

Abstract: A drive system of a wind turbine includes a transmission gear configured to be connected to a wind rotor shaft, the transmission gear having a first planetary gear set and a second planetary gear set, and a generator downstream of the transmission gear. The transmission gear and the generator are mounted in sliding bearings.

Abstract: A method (300) of using hot isostatic pressing to join metallic members that form a component in a gas turbine engine is disclosed. The method (300) may include applying (306) a surface treatment to the outer surfaces (14, 15, 16, 20, 22, 24) of first and second metallic members (12, 18) based on whether a mechanical or metallurgical joint for the component is desired. Additionally, the method (300) may include aligning (310) the outer surfaces (14, 15, 16, 20, 22, 24) of the first and second metallic members (12, 18) to create a sealed cavity, which encompasses the joint, between the first and second metallic members (12, 18). Once the outer surfaces (14, 15, 16, 20, 22, 24) are aligned, the method (300) may include subjecting (314) the members (12, 18) to hot isostatic pressing such that material from the first metallic member (12) flows into a recess (26) within the second metallic member (18) so as to join the first and second metallic members (12, 18) to form a consolidated component (10).

Abstract: A method and machine for validating an investigated sensor within a sensor group includes receiving sensor data from sensors of the sensor group measuring the same physical property, calculating a deviation of the sensor data received from the investigated sensor within the sensor group from sensor data reconstructed based on the sensor data received from all other sensors of the sensor group, and signaling a sensor fault of the investigated sensor if the calculated deviation is outside of a trusted range.

Abstract: A modular door drive control system for subjecting electrical drive motors to open-loop control and/or closed-loop control to open and close doors or door leaves in different applications includes at least one motor control unit, and a plurality of peripheral adaptation units for adapting the motor control unit or a plurality of the motor control units to match one of the different applications, where the motor control unit or a plurality of the motor control units are selectively connectable to each of the peripheral adaptation units to transmit electrical power for the drive motor, which is respectively connected to the motor control unit, via a common intermediate circuit such that door drive controllers for different applications can be realized with the aid of a modular door drive control system of this kind, without a relatively high level of expenditure on adaptation.

Abstract: A measuring device measures an electrical current and contains a light source for generating a polarized primary light signal for feeding into a Faraday sensor unit, and a detector for detecting a secondary light signal provided by the Faraday sensor unit and polarization-altered in relation to the primary light signal. An optical-electrical compensation element, by which the polarization alteration of the secondary light signal can be compensated via an opposite polarization alteration, and a measurement signal, according to the opposite polarization alteration, for the electrical current can be deduced. A method for measuring an electrical current by use of the measuring device is further disclosed.

Abstract: A display unit and an installation are disclosed for distributing electrical energy. In an embodiment, a display unit includes a plurality of switches. The display unit is connected via a communication link to the switches and is configured to receive data relating to the operation of the switches. Each switch of the installation comprises two mechanically disconnectable switching elements, a sensor unit to detect the current flowing over the switching elements, an electronic trip unit to initiate the disconnection of the switching elements if a trip condition allocated to the switch is fulfilled, and a mechanical switching unit to disconnect the switching elements if the trip condition is fulfilled.

Abstract: A coupling device for connecting a clutch to a turbine train, a turbine train having a clutch, and a method for connecting a clutch to a generator and to a turbine. The coupling device for connecting the clutch has a first coupling flange and a second coupling flange, wherein the first coupling flange and the second coupling flange each have at least one bore for accommodating a coupling bolt. The first coupling flange and the second coupling flange are centered in relation to each other by means of at least one coupling bolt, which is inserted into the bores in the first and in the second coupling flange.

Abstract: A combine cycle power plant is presented. The combine cycle power plant includes a gas turbine, a heat recovery steam generator, a main steam turbine and a supercritical steam turbine. The supercritical steam turbine may be operated as a separate steam turbine that may be not a single steam turboset with the main steam turbine. The supercritical steam turbine receives supercritical steam generated in the heat recovery steam generator to produce power output. Exiting steam from the supercritical steam turbine may be routed to the main steam turbine. The supercritical steam turbine may be operated at a rotational speed that is higher than a grid frequency. The rotational speed of the supercritical steam turbine may be reduced to the grid frequency via a gearbox.

Abstract: The invention relates to a sensor (300) for determining a dielectric property of a medium (205). The sensor (300) has a substrate (301, 302), which has at least one via (203, 204), and a waveguide (12), which is arranged so as to be planar in relation to an upper surface of the substrate (301). The waveguide (12) can be connected to an analysis device (20) by means of the at least one via (203, 204). Furthermore, the waveguide (12) is designed to receive an input signal from the analysis device (20) and to output an output signal to the analysis device (20). When of the waveguide (12) is in contact with a medium (205), properties of the input signal and of the output signal are indicative of the dielectric property of the medium (205). The arrangement of the waveguide (12) so as to be planar in relation to the substrate (301) enables larger measurement ranges and improved measurement accuracies. Furthermore, a compact construction is achieved by the planar structure.

Abstract: In a method, computer and magnetic resonance imaging system for determining a control sequence for operating the magnetic resonance imaging system to generate magnetic resonance image data of a region to be imaged of an examination subject, from which magnetic resonance raw data are acquired, information describing the anatomical structure of the region to be imaged is made available in the computer, and a surrounding area and a central area are specified in the region to be imaged dependent on the determined anatomical structure. Furthermore, a one-dimensional water/fat saturation pulse sequence for saturating the surrounding areas is determined and a multidimensional water/fat saturation pulse sequence for saturating the central area is determined.

Abstract: It is proposed that known digital rights management (EDRM: Enterprise Digital Rights Management) be extended such that control over the access to data stored in a cloud remains with the user or originator of the data. This requires the access information to be coordinated between a rights application in the cloud and a rights server in the region of the user (that is to say outside the cloud). A rights policy can be used for fine-grained regulation of the access for users (user groups), computers (client, server) and validity periods. In this context, the access comprises a wide variety of actions which can be performed with the data. In particular, it is advantageous that a server application is provided with (temporally limited) access to a portion of the data in order to index said data, for example, without the server being able to access the complete contents of the data in the process.

Abstract: In a method for determining a minimum possible echo time for a radio-frequency coil used in a magnetic resonance scanner, magnetic resonance signals are acquired with the radio-frequency coil in a magnetic resonance measurement of a free induction decay at fixed time intervals, the minimum possible echo time being determined by evaluating the time series of magnetic resonance signals as the instant from which an exponential signal decay was measured.

Abstract: In a method and a magnetic resonance system for fat saturation when acquiring magnetic resonance data in a predetermined volume segment of an examination object, a SPAIR pulse is emitted and an RF excitation pulse is emitted following a predetermined time period after the SPAIR pulse, and magnetic resonance data are thereafter acquired. The time period of at least one slice is set so as to be different from the time period for the remaining slices.

Abstract: In a method and magnetic resonance (MR) apparatus for acquiring MR signals from an examination object an RF excitation pulse is directed into the examination object while activating magnetic field gradients in two different spatial directions, such that a magnetization in the examination object in the two different spatial directions is limited by the RF excitation pulse and the switching of the magnetic field gradients. The magnetization is excited in one of the two spatial directions, of a slice selection direction, in a number of periodic layers, so MR signals are generated in the multiple periodic slices. The MR signals in the multiple periodic layers are read out using multiple reception coils of the MR scanner.

Abstract: In a method and apparatus for generating a phase-describing map in a firm that is usable to generate magnetic resonance (MR) image data, first and second sets of magnetic resonance echo raw data are acquired from a region of the examination subject, at two different echo times, said first and second sets of magnetic resonance echo raw data originating from two different chemical substance types. First and second image data sets of the defined region are reconstructed respectively from the first and second sets of magnetic resonance echo raw data. An energy function is determined that contains at least one term that places phase-describing values of map points of a phase-describing map in relation to each other dependent on a difference of the respective phase-describing values of the respective map points. The energy function is optimized to obtain an optimized phase-describing map.