Abstract: Disclosed are a process and a system for ascertaining an operating point of a nonlinear power amplifier, wherein a signal amplified by the power amplifier is received, and a value of a measure of a deviation of the amplitude distribution of the received signal from a Gaussian distribution is ascertained.

Abstract: A battery system for an electrically drivable vehicle includes at least one set of battery electronics that delivers a battery voltage, and at least one rechargeable traction battery connected to an input of the set of battery electronics, the traction battery configured for connection to at least one supplementary traction battery connectable in series or parallel to enable the traction battery capacity and/or life to be extended. The battery system may include a traction battery housing having a main compartment configured to receive the traction battery and at least one supplemental compartment configured to receive a modular supplemental traction battery.

Abstract: The invention relates to a system for determining and/or monitoring a state variable of a measurement object comprising an analysis sensor, a control apparatus and a read-out apparatus. The analysis sensor is configured to be introducible into the measurement object for remaining within the same, to be sensitive to an ion type and to generate measurement data based on a concentration of the ion type in the measurement object. The control apparatus controls the analysis sensor with respect to the generation of the measurement data. The read-out apparatus reads the measurement data out of the analysis sensor. Further, the invention relates to a respective method.

Abstract: A method for providing an item of conversion information describing an allocation rule of at least one physical property value of a material in a voxel relating to an image value of the voxel in a three-dimensional image dataset recorded with an X-ray apparatus is provided. By scanning a phantom including at least one calibration material in the X-ray apparatus, a calibration database that is used for determining the allocation rule is determined. The image dataset is recorded with a receiving spectrum geared to an X-ray detector of the X-ray apparatus. The receiving spectrum is described by at least one spectral parameter. For determining the allocation rule dependent upon the spectral parameter, calibration data derived from the measured calibration dataset describing different receiving spectra is used.

Abstract: A method is for determining a respiratory phase is based on receiving tomographic raw data on the basis of a spiral scan of an examination region of a patient, the examination region including at least part of the torso and/or abdomen of the patient. Slice image pairs are reconstructed on the basis of the tomographic raw data, wherein a slice image pair includes two slice images having a first interval at an identical position along a predefined axis. The position refers to the position of the examination region. This enables determining of differences between reference positions of the examination region in two slice images respectively of a slice image pair and determining a respiratory phase on the basis of the differences. The differences correspond in each case to the change in the anatomy of the examination region, wherein this change occurs during the first interval.

Abstract: A method is for providing a medical image of a patient, acquired via a computed tomography apparatus. An embodiment of the method includes acquiring first projection data of a first measurement region; acquiring second projection data of a second measurement region; registering a reference image to the at least one respiration-correlated image of the patient, wherein the reference image corresponds to the at least one functional image of the patient or is reconstructed under a second reconstruction rule from the second projection data, to produce a deformation model; applying the deformation model to the at least one functional image of the patient; combining the at least one functional image of the patient, deformed by the applying of the deformation model, with the at least one respiration-correlated image of the patient, to produce the medical image of the patient; and providing the medical image of the patient.

Abstract: A method is for providing a medical image of a patient. The method includes acquiring medical measurement data of the patient, including a set of multiple sampled state combinations; a first state space, including first physiological states, and a second state space, including second physiological states, together spanning a third state space. Each of the combinations includes a state from the first and second state spaces, and the third state space includes the set of combinations. The method further includes generating a medical image of the patient using the medical measurement data acquired, including a further state combination; the further state combination including a state from the first and second state space, the third state space including the further state combination, and the further state combination lying within the third state space outside the set of combinations. Finally, the method includes providing the medical image of the patient generated.

Abstract: Operating a communication system comprises providing N transmitting antennas (TA) for transmitting symbol streams (SST) and K ground receivers (GR) which may be provided with symbol streams (SST) transmitted by transmitting antennas (TA). Transmitting antennas (TA) are located with a distance from Earth (E). Ground receivers (GR) are spatially separated from each other, wherein the constraint K>N applies. The method includes: simultaneously transmitting N symbol streams (SST) by N transmitting antennas (TA), receiving a linear combination of N simultaneously transmitted symbol streams (SST) by each ground receiver (GR), respectively, determining the respective linear combination for N transmitting antennas (TA) and each of the K ground receivers (GR), respectively, deciding on the basis of the determined linear combinations which of the K ground receivers (GR) is assigned to a respective common receiver group in order to be simultaneously and with the same frequency provided with symbol streams (SST).

Abstract: A method is provided for determining the stopping power from computed tomography scans. The method includes preparing computed tomography scans of a body region with two different recording energies; determining the stopping power for different CT numbers from dual energy image areas of the computed tomography scans; forming a data field in which the determined values for the stopping power for different CT numbers from dual energy image areas are applied as a function of the CT numbers; forming a look-up table from the data field; determining the stopping power for different CT numbers from single energy image areas of the computed tomography scans by the look-up table. A corresponding device and control device, a corresponding particle therapy system, and a corresponding computed tomography system, are also provided.

Abstract: Method and systems are provided for automatically generating a volume model of correction data for an X-ray based medical imaging device. A plurality of X-ray images is recorded of a body region of a patient to be examined from different positions in each case. The plurality of X-ray images is used to generate a first volume model of the body region. Image artifacts are corrected in the first volume model using the plurality of X-ray images and thus a corrected volume model is generated. The corrected volume model is used to determine a contour of an artifact volume affected by image artifacts in the first volume model and the contour of the artifact volume is defined as a volume model of correction data. The volume model of correction data is stored on a data medium and/or output via an interface.

Abstract: The invention relates to a continuous method for the production of Grignard adducts, in which the magnesium chips are activated mechanically in situ. Furthermore, the invention relates to a device for implementation of the method according to the invention.

Abstract: A system and method for controlling a hybrid vehicle having an electric operating mode selectively modify a pressure point for an accelerator pedal in response to current vehicle and/or ambient operating conditions to reduce unintentional starting of an internal combustion engine and maintain electric mode operation while the accelerator pedal position is less than the pressure point. The vehicle operating conditions or mode may indicate a parking maneuver, stop-and-go traffic, or an eco mode where electric operation may be desired.

Abstract: A dynamic CT imaging method is provided. With the method, projection measurement data for a region of an examination object to be imaged is captured, with simultaneous correlated capture of the respiratory movement of the examination object. A phase of the respiratory movement, for which image data is to be reconstructed, is selected. Phase projection measurement data assigned to the selected phase is also determined. Transition regions of partial images of the region to be imaged between successive respiratory cycles are then reconstructed on a trial basis based on a part of the phase projection measurement data, and a standard reconstruction is performed using parts of the phase projection measurement data for each of the successive respiratory cycles assigned to an optimum reconstruction.

Abstract: The description relates to a method for operating a drive unit comprising an internal combustion engine, which is at least drive-connectable to an electric machine which delivers power to a drive train or receives power, and comprising at least one automatically actuable clutch, wherein the electric machine is at least drive-connectable to a manually shiftable transmission of the drive train, the manually shiftable transmission is shiftable without actuation of a clutch.

Abstract: In a method and medical imaging apparatus for depiction of medical imaging data, medical imaging data of the examination object are acquired over a period of time, and an artifact parameter is established, which characterizes artifacts that occur as a result of breathing of the examination object during the period of time. The medical imaging data are displayed on a display screen together with a depiction of the artifact parameter.

Abstract: A method is disclosed for performing an imaging examination of a patient via a computer tomograph. The method includes: capturing a respiratory movement of the patient; determining a respiration-correlated parameter, from the respiratory movement of the patient; specifying a measurement region of the imaging examination the measurement region including at least one z-position; automatically calculating at least one measurement parameter in accordance with the respiratory movement, using the respiration-correlated parameter as an input parameter; and performing the imaging examination of the patient, in accordance with the at least one measurement parameter in the measurement region via the computer tomograph, to capture the projection data, wherein the projection data, when captured, depicts the respiratory cycle of the patient at the at least one z-position over the complete time duration of the respiratory cycle.

Abstract: What is disclosed is a measuring device for measuring biosignals of a creature comprising a measurement electrode, a stimulation electrode and a control unit. The control unit stimulates by means of the stimulation electrode nerve fibers of the body of the creature at a positioning location of the measurement electrode, such that sweat is produced at the positioning location. The invention also refers to a corresponding method.

Abstract: A method for the reconstruction of planning images is based on a plurality of first respiratory cycles of a patient and tomographic raw data recorded at the same time as the first respiratory cycles being received. A reference cycle is determined based on respiratory cycles of the patient, in particular based on the first respiratory cycles of the patient. A reference cycle is subdivided into temporally equidistant reference phases, a reference amplitude being associated with each reference phase. The reference amplitudes are not equidistantly scanned therefore. Furthermore, the first respiratory cycles of the patient are subdivided into first phases, the temporal positions of the first phases each being based on one of the reference amplitudes. Reconstruction of planning images based on first intervals of the raw data follows, wherein the first intervals correspond to the first phases.

Abstract: An adaptive method for generating CT image data is described. In the method, projection measurement data of an examination region of an examination object is acquired. Furthermore, uncorrected image data of the examination region is generated. Artifact-affected subregions of the examination region are determined on the basis of at least one part of the uncorrected image data. An artifact-reduced image reconstruction is carried out in the artifact-affected subregions of the examination region. Only artifact-reduced subimage data of the artifact-affected subregions is generated. Finally, artifact-reduced image data of the entire examination region is generated by combining at least one part of the uncorrected image data and the artifact-reduced subimage data. A reconstruction device is also described. Moreover, a computed tomography system is described.

Abstract: A method is for provisioning quantitative CT image data acquired from a scanning field via a dual-source CT device the dual-source CT device including a first radiation source-detector system with a first capture region and a second radiation source-detector system with a second capture region. The method includes dividing the scanning field into a first subregion, representing at least a part of the intersection of the first region and the second capture region, and a second subregion, disjoint from the second region; acquiring first CT scan data from the first subregion and second CT scan data from the second subregion; reconstructing first quantitative CT image data from the first CT scan data and second quantitative CT image data from the second CT scan data; combining the first quantitative CT image data and the second quantitative CT image data to quantitative CT image data; and provisioning the quantitative CT image data.