Abstract: A compressor rotor comprising a pinion shaft which has multiple interconnected segments that are arranged axially one behind the other and including a multipart seal which seals the pinion shaft is provided. The pinion shaft has a rotor segment which supports a rotor, a connection segment, and a toothed segment arranged axially between the rotor segment and the connection segment, the toothed segment having a toothing at each of the two ends of the toothed segment. The toothed segment is held axially between the rotor segment and the connection segment via toothings by means of corresponding mating toothings at ends of the rotor segment and the connection segment, and a multipart seal sealing element which is connected to the toothed segment in an at least force-fitting manner is arranged on said toothed segment.

Abstract: A method for analyzing a droplet fraction of an oil mist sample of a gas turbine is provided. A collecting device collects the oil mist sample, wherein the collecting device is arranged within a breather pipe which is coupled to the gas turbine such that oil mist is flowing through the breather pipe. The droplet fraction is separated from a gaseous fraction of the oil mist sample by a filter device, wherein the filter device is soaked with the droplet fraction, the droplet fraction is extracted from the filter device by using a tetrachloroethylene solvent. A composition of the droplet fraction is analyzed by a spectrometer.

Abstract: An arrangement for a turbomachine is provided. The arrangement includes a vane for directing a hot gas during the operation of the turbomachine, a stator ring for securing the vane, a heat shield for protecting the stator ring from the hot gas flow wherein the heat shield is arranged in downstream direction of the hot gas flow in front of the stator ring characterized in that the heat shield comprises a plurality of channels formed therein for directing a cooling air.

Abstract: For simplified projection of a cascaded fieldbus system which includes a first fieldbus with a plurality of first bus devices, a second fieldbus subordinate to the first fieldbus with a plurality of second bus devices and a third fieldbus subordinate to the second fieldbus with a plurality of third bus devices, an example embodiment of the invention provides that the second fieldbus is connected to the first fieldbus via a fieldbus access node device, and therefore bus devices of the second fieldbus are presented as virtual modules of the first fieldbus, and that a connection device, via which the third fieldbus is connected to the second fieldbus, is presented as a virtual fieldbus access node module of the first fieldbus, and therefore the remaining bus devices of the third fieldbus are presented as virtual modules of the first fieldbus.

Abstract: A process for producing a layer system is provided wherein the layer system has at least a substrate, a ceramic layer, which is applied to a surface structured in a targeted manner, in which process the intermediate layer, in particular the metallic layer, is applied in such a way that the recesses form during the coating. By introducing recesses into a surface, the stresses in the ceramic layer on the metallic substrate are reduced in such a manner that a longer lifespan for the ceramic layer is achieved.

Abstract: A coil arrangement for a magnetic resonance tomography device includes at least two antennas connected in parallel to one another for RF signals and connected in series with one another for direct current signals.

Abstract: A medical examination facility is provided, wherein the facility includes an imaging apparatus and a mobile patient table. Mechanical coupling devices to be connected to each other are provided on both the imaging apparatus and the mobile patient table for the purpose of mechanically coupling the patient table to the imaging apparatus in an end position. The mechanical coupling device of the imaging apparatus includes a pulling device that is movable to a locking position via a controllable drive motor. In order to automatically move the patient table, the pulling device engages a driver provided on the patient table, before the end position is reached, and carries it by moving to the locking position, in which the patient table is in the end position.

Abstract: An electric machine has a stator and a rotor. The rotor is arranged on a rotor shaft that can be rotated about an axis of rotation. The stator surrounds the rotor radially on the outside with respect to the axis of rotation. The stator is surrounded radially on the outside by a one-piece housing with respect to the axis of rotation. As viewed around the axis of rotation, the housing extends only over a partial angular range. As viewed around the axis of rotation, a remaining angular range, in which the stator is not surrounded by the housing, thus remains. In end regions located at the ends of the partial angular range, the housing has housing-side form-closure elements, which cause a form closure of the housing with the stator in interaction with stator-side form-closure elements.

Abstract: Methods are provided for measurement of RF excitation pulses by a magnetic resonance device. The methods include the following acts: (1) sending of an RF excitation pulse by a radio-frequency system of the magnetic resonance device, (2) triggering of a receive event for capturing the RF excitation pulse by the control device of the magnetic resonance device, and (3) capturing of the sent RF excitation pulse in the form of excitation data by the radio frequency system. The excitation data may be used for checking process execution sequences.

Abstract: A magnetic resonance coil arrangement for a magnetic resonance device includes at least two coil elements that may be read and/or controlled via an amplifier, and a matching circuit for power and/or noise matching between the at least two coil elements and the amplifier. Components of the matching circuit are dimensioned for wideband matching to a frequency band. The frequency band is limited by outermost relevant coupling modes that are displaced from the resonant frequency. The coupling modes occur due to the interaction of a coil element with at least one adjacent coil element.

Abstract: A connecting system is provided for detachably connecting a first pipe end to a second pipe end. The first pipe end has a sealing cone facing toward the second pipe end and a shoulder section. The connecting system includes a first clamping disk surrounding the first pipe end and a second clamping disk surrounding and connected to the second pipe end. The connecting system further includes a multiplicity of screws, detachably connecting the first clamping disk to the second clamping disk. The first clamping disk includes an outer circular disk ring and an inner circular disk ring which is detachably connected to the outer circular disk ring. The inner circular disk ring has multiple separate circular disk ring parts, and an outer diameter of the inner circular disk ring is greater than an outside diameter of the shoulder section provided on the first pipe end.

Abstract: An airfoil (10) for a gas turbine engine in which the airfoil (10) includes an internal cooling system (14) with one or more internal cavities having an insert (18) contained within an aft cooling cavity (76) to form nearwall cooling channels having enhanced flow patterns is disclosed. The flow of cooling fluids in the nearwall cooling channels may be controlled via a plurality of cooling fluid flow controllers (22) extending from the outer wall (24) forming the generally hollow elongated airfoil (26). The cooling fluid flow controllers (22) may be collected into spanwise extending rows. In at least one embodiment, the cooling fluid flow controllers (22) may be positioned within a pressure side nearwall cooling channel (48) and a suction side nearwall cooling channel (50) that are both in fluid communication with a trailing edge channel (30). The trailing edge channel (30) may also include cooling fluid flow controllers (22) extending between the outer walls (12, 13) forming the pressure and suction sides.

Abstract: A turbine assembly having a hollow aerofoil and impingement device, the aerofoil having a first side wall from leading to trailing edge and a cavity arranged a distance to an inner surface of the cavity for impingement cooling and a flow channel for cooling medium from the leading to trailing edge, the impingement device has first and second pieces arranged side by side, the second piece downstream of the first forming a first flow passage providing passage from one side of the aerofoil towards an opposite side. A blocking element is arranged in the flow channel between the second piece and first side wall at a suction side for blocking flow of cooling medium from leading to trailing edge denying access to a section of the flow channel downstream of the blocking element while directing cooling medium in the first flow passage away from the suction side towards pressure side.

Abstract: The manufacturing rate of selective production methods is increased by using thicker powder layers.

Abstract: A production system includes a production machine and a control device for generating a control command for the production machine based on production data. The control device includes an analysis apparatus to decide based on a prespecified quality criterion, whether an activated functionality, which is integrated in the control device, or an alternative functionality, which is provided in a database outside the control device or in unactivated form in the control device, is used to translate the production data into the specific control command, so that the control command which is output by the control device is replaced by a control command more suitable to satisfy the prespecified quality criterion. The control device is configured to save a control file for the alternative functionality, to provide the control file for a translation, and to provide the alternative functionality for a prespecified period and/or for a predetermined number of useful cycles.

Abstract: In an embodiment, an arc light sensor includes: a first polarizer, a second polarizer, a magneto-optical material, a first light filter and a processing unit. The first polarizer is used for polarizing incident first target light, to form first polarized light in a first polarization direction. The second polarizer is used for polarizing incident second target light, to form second polarized light in the first polarization direction. The magneto-optical material, in a current magnetic field, uses the current magnetic field to rotate a polarization direction of the first polarized light, to form third polarized light. The first light filter is used for filtering the third polarized light, to form fourth polarized light capable of passing in a second polarization direction. The processing unit is used for determining whether the second target light is arc light according to intensity of the second polarized light and intensity of the fourth polarized light.

Abstract: Provided are a mapping rule updating method, device and system, for timely updating a mapping rule so as to avoid generating a wrong evaluation result. A mapping rule updating method, includes receiving first data generated in a production process; determining a first execution condition of the production process according to the first data based on a mapping rule; generating an evaluation result, the evaluation result being used for indicating whether the first execution condition is in line with a production plan of the production process; acquiring feedback information, the feedback information including indication information for indicating whether the evaluation result is correct; and updating the mapping rule according to the feedback information. As the mapping rule can be automatically updated, the work load of manually configuring the mapping rule is reduced greatly, and the accuracy of the mapping rule and the timeliness of the update is improved.

Abstract: A method for cooling a generator using cooling air flowing through the generator, wherein a density of the cooling air when the generator is idling and running passively at a mains frequency of a mains network to which the generator is connected is reduced relative to a density of the cooling air when the generator is operating under load.

Abstract: An organic n-dopant for doping organic electron transport materials.

Abstract: The present disclosure relates to a corona shielding material. The teachings thereof may be embodied in a material with an adjustable resistance and/or a corona shielding system which comprises an overhang corona shielding system (OCS). In some embodiments, a corona shielding material may include: a matrix; and a filler comprising doped and undoped particles in a given size fraction. A resistance of the corona shielding material is set by a concentration of doped particles in the filler particle size fraction.