Abstract: A method for determining an efficiency and/or calibrating a torque of a drivetrain comprises two tests. The drivetrain has a motor-side end at a main shaft connectable to a motor and a generator-side end, with a generator arranged between the ends. In a first test, the motor-side end of the drivetrain is driven. A variable dependent on the main shaft torque is determined at the motor-side end of the drivetrain and an electrical power Pelec is determined at the generator-side end of the drivetrain. In a second test, the generator-side end of the drivetrain is driven and the variable dependent on the main shaft torque is determined at the motor-side end and the electrical power is determined at the generator-side end. An efficiency and/or calibration parameters is/are determined from the electrical power values and the variables dependent on the main shaft torque determined in the first test and second tests.

Abstract: The invention relates to a method for dividing a transparent workpiece (1) by means of pulsed laser radiation (2) by way of creating a beam convergence zone (3) in the volume of the workpiece, in which the intensity of the laser radiation (2) exceeds a threshold value for non-linear absorption, wherein the beam convergence zone (3) and the workpiece (1) are moved relative to each other, thereby creating a two-dimensional weakening in the workpiece (1) extending along a predetermined separating line (4), and wherein the workpiece (1) is subsequently divided along the separating line (4). The invention proposes that by selecting the duration of the energy input generated by the non-linear absorption of the pulsed laser radiation and by spatial beam shaping, non-linear propagation of the laser radiation (2) in the volume (1) of the workpiece outside the beam convergence zone (3) is suppressed.

Abstract: A method for generating an electromagnetic useful radiation having a useful frequency is provided and includes generating and radiating an electromagnetic pump radiation with a pump frequency, coupling the pump radiation into an external optical resonator having a resonance frequency. The resonance frequency is at least initially substantially equal to the pump frequency, such that resonator electromagnetic radiation oscillates in the resonator at the resonance frequency.

Abstract: The embodiment of the present disclosure relates to methods and apparatuses for sounding reference signal configuration and triggering in wireless communications network such as advanced 5G networks. A method performed by a user equipment comprising: receiving a higher layer configuration that associates SRS resource, with a control resource set pool index which is a higher-layer parameter in a configuration of CORESET comprising resources on which a PDCCH is transmitted from a network node and deriving a spatial relation or a reference signal as pathloss reference for said SRS resource with reference to at least one reference signal from quasi-colocation (QCL) information of a CORESET associated with the control resource set pool index; wherein the QCL information comprises a relationship between one or more reference signals and DMRS port(s) of the PDCCH transmitted on the CORESET and the relationship indicates parameter(s) that are obtained from the reference signals.

Abstract: A video encoder is configured to entropy encode an absolute value of a quantization level of a current transform coefficient at position (xC, yC), wherein the absolute value is encoded using context adaptive binary arithmetic encoding of bins of a first binarization. The video coder is further configured, for the current transform coefficient, to encode a bin of the first binarization by using a context which is determined based on a sum of minimum absolute values of transform coefficient quantization levels, based on encoded bins of the first binarization, at one or more transform coefficient positions among (xC+1, yC), (xC+2, yC), (xC+1, yC+1), (xC, yC+1), and (xC, yC+2).

Abstract: The application relates to a communication device [e.g., UE] for communicating with one or more other communication devices using multiple-input-multiple-output, MIMO, communication, wherein the communication device is configured to: select [e.g., from ?] one or more preferred beams [e.g., bi]; and find one or more other beams [e.g., those such that INRk(cl)>?1] which have a comparatively high spatial correlation with the one or more preferred beams or which have a comparatively high probability of interference with the one or more preferred beams [e.g., if INRk(cl)>?1], wherein the communication device is configured to provide, to a coordinating communication device [e.g., BS, gNB]: first information [e.g., Fk,1] identifying the one or more preferred beams [e.g., Fk,1 is made of columns identifying the preferred beams]; and second information [e.g., rk,i,1, rk,i,2] identifying the one or more found other beams or a region [e.g.

Abstract: A production method includes fixing ball elements of a semiconductor material to a carrier substrate by means of heat and pressure; and one-sided thinning of the ball elements fixed to the carrier substrate to form plano-convex lens elements of a semiconductor material.

Abstract: A casting core for casting moulds can include a central core and a core shroud arranged around the central core. The core shroud containing contains or consists of ceramic particles bound to a binder. The central core contains ceramic particles bound to a binder, wherein the ceramic particles of the central core contain at least one component, which exhibits, at a temperature in a range from 100° C. to 1500° C., a thermally induced phase transformation, and/ or at least two components, the thermal expansion coefficients of which at 20° C. differ by at least 5·10?6K?1.

Abstract: Embodiments provide a terminal point of a communication system, wherein a control signal is emitted in the communication system for coordinating the participants of the communication system, wherein the control signal is transferred distributed in correspondence with a frequency hop-based occupancy of resources of the frequency band, indicated by a control signal hopping pattern, wherein the terminal point has a receiver, wherein a receive bandwidth of the receiver is smaller at least by the factor 3 than a bandwidth of the frequency hop-based occupancy of resources of the frequency band, indicated by the control signal hopping pattern, wherein the terminal point is configured to receive a reference signal, the reference signal having information on the control signal, wherein the terminal point is configured to receive the control signal based on the information on the control signal.

Abstract: An embodiment provides a method for synchronizing a plurality of super frames to a beam switching time plan defining a plurality of dwell times, the beam switching time plan scheduling a switching between at least two beams which are transmitted using a high-altitude platform or a satellite, wherein each beam covers a respective service area so as to forward a respective data frame to the respective service area via the respective beam; wherein each super frame comprises a data frame to be forwarded by the satellite to the respective service area.

Abstract: The embodiments relate to a method for producing a solar cell having a rear-side contact with a tunnel barrier. A monocrystalline wafer having a front side and a rear side may be provided with silicon and a dopant. A tunnel barrier is produced on the wafer, and a polycrystalline or amorphous layer is deposited on the tunnel barrier. The polycrystalline or amorphous layer includes silicon and a dopant. The polycrystalline or amorphous layer is removed on the front side by gas-phase etching.

Abstract: The present invention relates to a method for irradiating a population of mammalian cells comprising at least one target mammalian cell with electron beams and/or X-rays, characterized in that: (i) a composition comprising a population of mammalian cells is irradiated in vitro with electron beams and/or X-rays, the population of mammalian cells containing at least one target mammalian cell and the dose rate being within the range from 5 Gy/sec to 107 Gy/sec, and (ii) optionally viable target mammalian cells are isolated or enriched from the population of mammalian cells, and to agents obtainable thereby and to uses thereof.

Abstract: Concepts are described which enable improved suitability of a respective codec for parallel processing at encoder and/or decoder.

Abstract: An encoder for encoding an audio signal has: an analyzer configured for deriving prediction coefficients and a residual signal from an unvoiced frame of the audio signal; a gain parameter calculator configured for calculating a first gain parameter information for defining a first excitation signal related to a deterministic codebook and for calculating a second gain parameter information for defining a second excitation signal related to a noise-like signal for the unvoiced frame; and a bitstream former configured for forming an output signal based on an information related to a voiced signal frame, the first gain parameter information and the second gain parameter information.

Abstract: The present invention relates to a casting core for casting molds, wherein the casting core contains or consists of ceramic particles bound with a silica sol. The casting core has a pore structure, in which the average pore size of the pores increases at least in sections from the outside to the inside in the casting core. The present invention also relates to a method for producing the casting core according to the invention and to the use of the casting core according to the invention.

Abstract: A video encoder for providing an encoded video representation, wherein the video encoder is configured to provide a video stream comprising encoded parameter information describing a plurality of encoding parameters, encoded video content information and one or more merge identifiers indicating whether and/or how the encoded video representation can be merged with another encoded video representation.

Abstract: A method for introducing heat into at least one component of an exhaust-gas aftertreatment device of an internal combustion engine (15). The method involves at least partially reacting a partial flow of an exhaust-gas flow with fuel in a heated catalyst (2) and then feeding back the resulting product to the exhaust-gas flow, The amount of fuel fed to the heated catalyst and/or the partial flow fed to the heated catalyst is controlled, by open-loop or closed-loop control, in accordance with the exhaust-gas temperature upstream and/or downstream of the component. The amount of fuel fed to the heated catalyst and/or the partial flow fed to the heated catalyst is determined by means of at least one heated-catalyst characteristic map. A computer readable medium stores a signal sequence representing data suitable for transmission by means of a computer network, to an open-loop or closed-loop control device to carry out the above-described method.

Abstract: An optical transmission/reception unit includes a carrier rotatable around an axis of rotation, an optical receiver arranged at the carrier on the axis of rotation so as to receive an optical reception signal from a first direction, an optical transmitter arranged at the carrier adjacent to the optical receiver so as to emit an optical transmission signal in a second direction, and a transmission/reception optic arranged at the carrier on the axis of rotation above the optical receiver and extending across the optical receiver and the optical transmitter, wherein the transmission/reception optic includes a reception optic and a transmission optic arranged in the reception optic, wherein the reception optic is configured to guide the optical reception signal striking the transmission/reception optic towards the optical receiver on the axis of rotation.

Abstract: An apparatus for decoding an encoded multichannel signal includes: a base channel decoder for decoding an encoded base channel to obtain a decoded base channel; a decorrelation filter for filtering at least a portion of the decoded base channel to obtain a filling signal; and a multichannel processor for performing a multichannel processing using a spectral representation of the decoded base channel and a spectral representation of the filling signal, wherein the decorrelation filter is a broad band filter and the multichannel processor is configured to apply a narrow band processing to the spectral representation of the decoded base channel and the spectral representation of the filling signal.

Abstract: The invention relates to a device for detecting water flow through or over at least one layer of biological cells, the device containing a first and a second container, the second container being situated at least in part within the first container such that two separate compartments are formed. The base of the second container consists, at least in regions, of a planar, water-permeable substrate for growing biological cells, and the base of the first container has an electrode pair, the electrodes of which each have an electrical connection which leads into a space outside the first container. By means of the device according to the invention, water flow over at least one layer of biological cells can be detected easily, quickly, robustly, and reproducibly, with a high temporal resolution. The invention also relates to a method for detecting water flow over at least one layer of biological cells.