Abstract: An electric motor as well as a manufacturing method for the electric motor and a manufacturing tool are provided, the electric motor being for a deep well vertical turbine pump and having a stator assembly that has a stator bore to hold a rotor and slots that are radially open to the inside, respectively separated from each other by a stator tooth, and in which electrical conductors made of round wire of coils of a coil assembly lie, with the distributed windings on one axial end of the coil assembly forming a winding head in which the coils are encapsulated. The winding head only extends between an inner diameter and an outer diameter which is smaller than the diameter of the stator bore in which the coil assembly is inserted axially into the slots of the stator assembly.

Abstract: Provided are a method and a tool for manufacturing a coil assembly of an electric motor for a deep well vertical turbine pump with a stator assembly that has a stator bore to receive a rotor and slots radially open to the inside which are respectively separated from each other by a stator tooth and in which electrical conductors of coils of the coil assembly lie, forming distributed windings and, at one axial end of the coil assembly, a winding head. The coil assembly is manufactured by shaping and encapsulating the coils within the tool so that the winding head extends only between an inner diameter and an outer diameter that is smaller than the diameter of the stator bore in order to enable axial insertion of the coil assembly into the stator assembly leading with the winding head in which the coils are respectively wound individually, drawn into the tool as wire bundles and encapsulated within it.

Abstract: A vehicle wheel arrangement includes a wheel with a wheel hub and a carrier element for mounting the wheel on a vehicle part and/or for arrangement of a power-transmitting unit. In a joined state of the vehicle wheel arrangement a joining portion of the wheel hub corresponds with a joining portion of the carrier element. In the joined state of the vehicle wheel arrangement, the wheel hub and the carrier element are connected to one another in form-fitting fashion at least in a circumferential direction of a wheel hub axis. The wheel hub includes, in a region of the joining portion, one or more fiber plies with fibers arranged unidirectionally in the circumferential direction of the wheel hub axis. Furthermore, a method can be used to produce a vehicle wheel arrangement having a wheel hub made of fiber-reinforced composite and a carrier element.

Abstract: A process is disclosed for the electro-refinement of titanium aluminides to produce titanium-aluminum master alloys which process is effective even in the presence of substantial amounts of aluminum and in the presence of ten (10) or more weight percent oxygen in the material(s) to be refined. The process is likewise effective without the addition of titanium chlorides or other forms of soluble titanium to the electrolyte bath comprising halide salts of alkali metals or alkali-earth metals or a combination thereof.

Abstract: A facility for identifying multi-word expressions in a natural language sentence is described. The facility provides the sentence to each of multiple natural language processing modules including a first module, a second module, and a third module. Each natural language processing module uses a different approach to identify a multi-word expression and a type of the multi-word expression. Upon determining that the multiple identifiers of the multi-word expression differ, the facility determines the multi-word expression using a resolution process, which can involve a logical rule set or a machine learning model.

Abstract: A facility for retrieving content. The facility invokes an API, as part of the invocation passing to the API: (1) information identifying one or more units of content to return; and (2) an indication that an entity on behalf of which the invocation is performed attests that the entity is compliant with a license that applies to the identified units of content. The facility receives a response to the API invocation that contains the identified units of content.

Abstract: A dental material having at least one copolymer obtained by (I) copolymerizing one or more monomers MG having a polymerizable (meth)acrylate group, one or more OH group-containing (meth)acrylates MF, one or more strongly acidic adhesive monomers MH and optionally of one or more polymerizable carboxylic acid monomers MCS, (II) reacting the resulting copolymer A0 in a polymer-analogous reaction with a functionalized, radically polymerizable monomer MP, which reacts with the OH groups of the monomer MF in the polymer chain of A0 to form a copolymer AP having pendant polymerizable groups, and (III) neutralizing the copolymer Ap with a base. The material is particularly suitable as a dental adhesive.

Abstract: A vehicle transmission includes a hydraulic circuit and a control unit. The control unit is configured to: obtain (20) a target pressure specification; convert (26) the target pressure specification into a target volume flow rate; determine (42) a valve volume flow rate as a function of the target volume flow rate and as a function of parameters that represent system properties of the hydraulic circuit; determine (46) a pressure drop at a valve due to flow forces as a function of the valve volume flow rate; determine (48) a compensated valve output pressure as a function of the valve volume flow rate and the pressure drop; determine (58) the electric control current as a function of the compensated valve output pressure; and activate a valve with the electric control current.

Abstract: A method for calibrating gradient amplifiers of a magnetic resonance apparatus is provided. The magnetic resonance apparatus includes one or more gradient coils that include at least two coil segments configured to generate a gradient magnetic field with a gradient in a spatial direction, and a gradient amplifier for each of the at least two coil segments. The gradient amplifier is configured to supply the respective coil segment with electric current. A plurality of magnetic field distributions are measured, each being generated via at least one coil segment of the at least two coil segments. For measuring each magnetic field distribution of the plurality of magnetic field distributions, the at least one coil segment that generates the respective magnetic field distribution is supplied with a predetermined electric current via the respective gradient amplifier. The gradient amplifiers are calibrated via a comparison of the plurality of measured magnetic field distributions.

Abstract: A method for operating a magnetic resonance facility in which a measurement gradient pulse is used to record magnetic resonance signals for sampling k-space along a trajectory section. The recorded magnetic resonance signals are assigned to k-space points using a shape function describing the time profile of the measurement gradient pulse. To correct deviations of the real time profile of the measurement gradient pulse from an assumed target profile, a first correction measurement is performed to ascertain first magnetic resonance signals of the trajectory section. A second correction measurement is then performed using a reference sampling pattern or a reference gradient pulse with fewer deviations from an assigned reference target profile. If a deviation criterion is met, a correction function for the shape function is ascertained by aligning the first and second magnetic resonance signals to one another, providing correction information to be used in an imaging measurement.

Abstract: In a method for measuring a gradient field in a magnetic resonance tomography (MRT) system, a first slice is excited by a first radio frequency (RF) pulse being emitted and by a first slice selection gradient being switched at least partly at the same time as the first RF pulse. A second slice is excited by a second RF pulse being emitted and by a second slice selection gradient being switched at least partly at the same time as the second RF pulse. The second slice intersects with the first slice in an intersection region. After the excitation of the second slice, a readout gradient is switched, and an MR signal emitted from the intersection region is acquired. Depending on the MR signal, a disruption variable is computed, which determines a deviation of a temporal course of an amplitude of the readout gradient from a predetermined required course.

Abstract: In a method, an imaging sequence is irradiated into an examination region in which an examination object is located. The imaging sequence includes an acquisition section. The acquisition section includes acquiring a plurality of echo signals, each of which samples a k-space region of a k-space. The plurality of echo signals comprises a plurality of first echo signals and a plurality of second echo signals. The plurality of first echo signals and the plurality of second echo signals are generated from different magnetization configurations. The k-space regions sampled by the plurality of first echo signals sample the k-space in a different order to the k-space regions sampled by the plurality of second echo signals.

Abstract: The disclosure relates to a magnetic resonance tomography scanner and to a method for operating the magnetic resonance tomography scanner. The method includes determining a B0 field map. The method further includes determining an excitation of the nuclear spins to be achieved and a spectrally selective excitation pulse for transmission by a transmitter by way of an antenna as a function of the B0 field map. In the method, the excitation pulse is configured here to generate the excitation of the nuclear spins to be achieved in the patient. The excitation pulse is then output by way of the antenna.

Abstract: A computer-implemented method for provision of a result dataset having position information of a local radio-frequency coil, including: providing input data having at least magnetic resonance data, which is acquired by means of the local radio-frequency coil; determining a result dataset by applying a trained function to the input data, wherein the result dataset comprises position information for determining the position of the local radio-frequency coil; and providing the result dataset.

Abstract: Methods for automatically compensating eddy currents in a magnetic resonance apparatus include determining modified magnetic resonance sequence data by a compensation computing unit and performing a magnetic resonance measurement in which a gradient generating system generates magnetic field gradients based on the modified magnetic resonance sequence data.

Abstract: Light signals are converted into first electric signals by a first group of light-receiving elements, and the light signals are additionally converted into second electrical signals by a second group of light-receiving elements. The second group has a lower degree of sensitivity for converting the photons into an electric current than the first group. The first electric signals are used to ascertain the distance to an object by means of a time-correlated photon counting process depending on a starting time for the emission of the light signals. Furthermore, the second electric signals are used to determine the distance depending on the starting time but using a second signal processing different from the process used for the first electric signals.

Abstract: In a method for providing setting parameter sets for at least one measuring protocol described by protocol parameters for acquiring magnetic resonance data with a magnetic resonance facility, setting parameter set is determined for each of at least two temperature status categories of the magnetic resonance facility using a temperature model describing a development of a temperature status of at least one component of the magnetic resonance facility. The method also includes preventing overheating of the at least one component due to the measurement with the measuring protocol being repeated a maximum number of times for a specified number of repetitions.

Abstract: The disclosure relates to a method for generating a B0 map for a magnetic resonance examination of an examination subject, a magnetic resonance device, and a computer program product for executing the method. The method provides for the application of at least two preparatory RF pulses during a preparatory stage and at least one readout RF pulse during an acquisition stage. At least one stimulated echo signal is acquired after the readout RF pulse. A B0 map that shows the actual spatial distribution of the magnetic field strength of the main magnetic field is derived from the at least one acquired FID echo signal and the at least one acquired stimulated echo signal.

Abstract: A control device establishes a change in a main magnetic field expected for a respective time instant and based on the established expected change in the main magnetic field, correctively adjusts the main magnetic field and/or a nominal receive frequency of the RF receive coil and/or a transmit frequency for subsequent RF transmit pulses and/or takes the expected change in the main magnetic field into account in the evaluation of the received MR signals. At least for some of the RF transmit pulses, the control device acquires, via a sensor device, a portion of the respective radiofrequency wave supplied to the RF transmit coil. The controller extracts therefrom an oscillation corresponding to a respiratory motion of the patient and based on the variation with time of the extracted oscillation, establishes the change in the main magnetic field expected for the respective time instant.

Abstract: An adjustment device for adjusting a visual field of a Lidar measuring device in a focal plane array arrangement on a vehicle, with: a pitch angle estimating unit for determining a pitch angle (N) of the vehicle; an area unit for determining a desired object detection area in relation to an alignment of the vehicle based upon the pitch angle; a selection unit for determining a selection of rows (Z1-Z6) of transmitting elements of a Lidar transmitting unit of the Lidar measuring device and/or sensor elements of a Lidar receiving unit of the Lidar measuring device running parallel to a horizontal plane of the vehicle based upon the desired object detection area; and a control interface for activating the selection of rows of transmitting elements of the Lidar transmitting unit and/or sensor elements of the Lidar receiving unit of the Lidar measuring device, so as to detect objects within the object detection area.