Abstract: Various embodiments of the teachings herein include power electronics assemblies. An example assembly includes: a substrate with a metallization forming first and second structures separated from each other by interspaces and with thickness of at least 300 ?m; a power semiconductor mounted on the first structure; and an electric insulator having a thermal conductivity of at least 50 W/mK arranged at least sectionally in such a way that the structures adjacent to the respective interspace are thermally connected by the insulator.

Abstract: A dental coil comprises a first element and a second element. The first element is composed of a dimensionally stable material and has a recess that is configured to receive at least one of a mouth region or a nose region of a patient when the dental coil is positioned on the jaw region of the patient during use. The second element has a flexible element that is configured to allow the flexible element to take the shape of the jaw region of the patient. The first element and the second element have an antenna configured to receive high-frequency signals in a frequency and power range of a magnetic resonance measurement.

Abstract: A transmission arrangement for a drivetrain of an agricultural towing vehicle includes an input shaft, an output shaft, a transmission device, a transmission unit, and an electric machine. The transmission device includes a mechanical transmission branch and a variable transmission branch with a magnetic-electrical epicyclic transmission stage having an internal rotor, an external stator, and an interposed rotatable magnetic modulation ring being rotationally conjointly connectable to a clutch drive shaft. The transmission unit is arranged downstream in the power flow and includes a first clutch and a second clutch connected to the clutch drive shaft and at least four gear sets for establishing at least four gear ratio stages. The electric machine is coupled to the input shaft and configured to transmit electrical power to the external stator, which is configured to rotate the modulation ring.

Abstract: An electric vehicle with at least one brake system and an axle and a method to operate the electric vehicle. The at least one brake system is arranged at the axle and includes a wet service brake, a parking brake, and an actuator. The actuator is adjustable and can communicate with a service brake in a service brake region or with the parking brake in a securing region to generate a braking action at the axle in each instance. A neutral region in which the actuator communicates neither with the service brake nor with the parking brake is located between the service brake region and the securing region. A plurality of brake systems are advantageously used jointly in the various configurations.

Abstract: A medical device of an embodiment includes at least one movably mounted and motor-adjustable component; at least one drive unit for adjusting the at least one component; at least one motor control unit associated with the drive unit; and at least one sensing unit for sensing a position parameter dependent on the position of the at least one component. According to an embodiment of the invention, a safety function is integrated in the motor control unit. The safety function limits at least one operating parameter associated with the motion of the at least one component to be performed. An apparatus control unit controls the drive unit in dependence on the position parameter in accordance with the safety function. At least one embodiment of the invention further relates to a method for operating a medical device.

Abstract: A method for joining two metallic, tubular joining members to one another, the method including arranging two metallic, tubular joining members with respect to one another in an overlapping or end-face manner, and joining the joining members by material bond along a joining zone of the joining members. In the joining, a chain of joining spots extending in the circumferential direction of the joining members is produced in the joining zone, wherein successive joining spots in the chain overlap, wherein, in the joining, the joining spots are produced by means of TIG pulse welding with an arc time of up to 100 ms, preferably of up to 50 ms, wherein an arc of a welding pulse of the TIG pulse welding is extinguished after the arc time has been reached. A corresponding welding apparatus is also described.

Abstract: Various embodiments include a sprayable formulation for an insulation system of an electrical machine, the formulation comprising a sprayable resin mixture including: a monomeric and/or oligomeric, at least diepoxidic carbon-based first resin component; and a monomeric and/or oligomeric second resin component based on alkyl-/arylpolysiloxane with at least one glycidyl ester and/or glycidyl ether functionalities; and a curing agent and based on at least one of: anhydride, (poly)amine, and amino- and/or alkoxy-functional alkyl-/arylpolysiloxane.

Abstract: A method teaches a control function, preferably a characteristic curve, of a hydrostatic motor of a traction drive of a work machine when in drive mode. The traction drive is provided with the hydrostatic motor and a hydrostatic pump, which is hydraulically connected to the hydrostatic motor. The method includes setting a pivot angle of the hydrostatic motor while taking into account a desired velocity of the work machine when in the drive mode, and checking whether predefined conditions are met. If the predefined conditions are met and a current velocity differs from the desired velocity, the method includes correcting the control function of the hydrostatic motor by taking into account a difference between the desired velocity and the current velocity. At least one value of the corrected control function of the hydrostatic motor is taught during the correcting.

Abstract: A rear derailleur is configured as a hierarchical, at least two-level modular construction system and comprises at least several of the modules: “base element module”, “swivel formation module”, “shifting element module”, and “chain guiding device module”. At least one of the modules is replaceable and handleable in one piece. At least one of the modules includes at least one sub-assembly that is replaceable and handleable in one piece. In an embodiment the modular construction system is configured to use at least one family of sub-assemblies comprising at least two family members within at least one of the modules.

Abstract: A construction machine uses a controller configured to determine a cross-sectional profile of a design surface at a selected position and orientation of a milling drum of the construction machine. The controller automatically determines a preferred sensor sub-set from a plurality of possible sensor sub-sets selected from a set of available sensors. The preferred sensor sub-set must be usable to create at least a portion of the cross-sectional profile of the design surface. The controller automatically maintains or switches control of the milling depth to use the preferred sensor sub-set.

Abstract: A medical device having a time-controlled start function and a control unit, which enables user-friendly operation of the medical device, is described. The medical device has a control unit, which is equipped for automatic start-up of the medical device at a predetermined point in time and for checking on whether, after start-up of the medical device, a predetermined event has occurred, and has a display screen for display of information when the check reveals that the event has not occurred. Furthermore, a corresponding process for user-friendly operation is described.

Abstract: An electronics arrangement contains a printed circuit board (PCB), a semiconductor device and a heat sink. A first side of the semiconductor device points toward the PCB and a second side, opposite the first side, bears the heat sink, which is thermally connected to the semiconductor device. A fan is provided for producing an airflow flowing around the heat sink. An air guide device is mounted on the PCB and is configured such that, together with the PCB, it forms an air duct having an air duct inlet and an air duct outlet. The airflow flowing into the air duct flows through the air duct inlet and leaves through the air duct outlet. The air guide device has an air guide ramp that is arranged in the area of the air duct inlet such that the airflow flowing into the air duct inlet is deflected toward the heat sink.

Abstract: An electronic assembly has a circuit board and two or more heat sinks arranged on the printed circuit board, each having a straight air duct section from an air inlet opening of the heat sink to an air outlet opening of the heat sink. The heat sinks are spaced apart from each other one behind another in a row by intervening spaces, with their air duct sections lying in a straight line and forming an air duct. Through-hole-mounted THT components, which in each case rest against an outside surface of one of the heat sinks, have connecting pins secured in the printed circuit board. A fan generates an air stream that enters the air inlet opening of the heat sink that is located at the beginning of the row and flows through the air duct.

Abstract: The invention relates to a partial oxidation reactor (POX reactor) for producing a raw synthesis gas stream by partial oxidation of a carbon-containing input stream in gaseous form, in liquid form or in solid, particulate form dispersed in a carrier liquid or a carrier gas in the presence of an oxygen-containing oxidant stream and optionally a moderator stream containing steam and/or carbon dioxide. The invention further relates to a process for producing a raw synthesis gas stream. The partial oxidation reactor according to the invention provides for introducing a cylindrical or frustoconical inlet region having a constant diameter or a diameter that is smaller on the entrance side. The inlet region is arranged upstream of a cylindrical main reactor portion and represents a bottleneck-like section since the largest diameter of the inlet region is smaller than the diameter of the cylindrical main reactor portion.

Abstract: A pressing device for pressing meat products, in particular frozen and/or partly frozen meat products, preferably fresh meat products and/or bacon, comprises a pressing chamber which extends along a longitudinal axis and into which a product to be pressed can be inserted, wherein the pressing chamber comprises at least one counter-element and at least one contact element, which is movable in the direction of the counter-element, that cooperate such that the product inserted into the pressing chamber can be compressed between the at least one counter-element and the at least one contact element; and wherein the pressing device comprises at least one servomotor that is configured to move the at least one contact element.

Abstract: Thermal post-treatment of a silicon carbide (SiC) volume monocrystal which has a substantially cylindrical basic shape with a crystal length in an axial direction, a crystal diameter in a radial direction, a crystal central longitudinal axis extending in the axial direction, and with three boundary surfaces, namely, a bottom surface, a top surface and a circumferential edge surface. The SiC volume monocrystal is brought to a post-treatment temperature in order to reduce mechanical stresses present in the SiC volume monocrystal after completion of the previous growth, wherein an inhomogeneous temperature profile with a radial thermal gradient is set in the SiC volume monocrystal, which rises continuously from the crystal central longitudinal axis to the circumferential edge surface, and a heat exchange of the SiC volume monocrystal with a surrounding free space takes place via free heat radiation on at least two of the three boundary surfaces.

Abstract: A method for localizing a sound source for a binaural hearing system with first and second hearing instruments. First and second input signals are formed from an ambient sound signal and directional signals are formed by directional signal processing of the input signals. The directional signals have a minimum sensitivity in different minimum directions with respect to a preferred direction of the binaural hearing system. Based on the directional signals, first and second source directions of the sound source are determined starting from the first and second hearing instrument, respectively. Based on the source directions and a distance between the first and second hearing instruments, the distance of said sound source from a reference point of the binaural hearing system and a main direction of the said sound source are determined to thereby localize the sound source.

Abstract: The present invention relates to systems and methods for growing bulk semiconductor single crystals, and more specifically, for growing bulk semiconductor single crystals, such as silicon carbide, based on physical vapor transport. The sublimation system comprises a crucible (202) having a longitudinal axis (212) and a sidewall (218) extending along the longitudinal axis (212), wherein the crucible (202) comprises a fixing means for at least one seed crystal (210) and at least one source material compartment (204) for containing a source material (208); and a heating system for generating a temperature field around a circumference of the crucible (202) along the longitudinal axis (212) of the crucible (202); a thermally insulating unit (214) arranged within the source material compartment (204) at the sidewall (218) of the crucible (202).

Abstract: The present invention relates to systems and methods for growing bulk semiconductor single crystals, and more specifically, for growing bulk semiconductor single crystals, such as silicon carbide, based on physical vapor transport. The sublimation system comprises a crucible (102) having a longitudinal axis (120) and a sidewall (116) extending along the longitudinal axis (120), wherein the crucible comprises a fixing means for at least one seed crystal (110) and at least one source material compartment (104) for containing a source material (108), and a heating system being formed to generate a temperature field around a circumference of the crucible along the longitudinal axis of the crucible, wherein the crucible (102) comprises at least one first heat radiation cavity (118), which is arranged opposite to the fixing means and adjacent to the source material compartment (104), the first heat radiation cavity (118) being closed on all of its sides.

Abstract: In a method of pressing and processing meat products, in particular frozen and/or partly frozen meat products, preferably fresh meat products and/or bacon, the products are inserted into a pressing chamber of a pressing device and are pressed in the pressing chamber by at least one displaceable contact element, with the contact element being moved by means of a servomotor.