Abstract: The invention relates to an attenuation element. According to the invention, this attenuation element has two rail pieces (46, 48) and two conducting pieces (50, 52), wherein a rail piece (46, 48) and a conducting piece (50, 52) each are electrically connected in parallel, wherein these rail pieces (46, 48) are spatially disposed in parallel at a distance from each other, and wherein the conducting pieces (50, 52) each are made of electrically highly conductive material, and the rail pieces (46, 48) each are made of an electrically poorly conductive material. In this manner, the high-frequency currents can be substantially attenuated in a rectifier having distributed intermediate voltage circuits without the power loss in the intermediate voltage circuit markedly increasing such that the capacitors (10, 12, 24, 28) of the rectifier having distributed intermediate voltage circuits no longer need to be oversized with regard to an RMS current of the intermediate voltage circuit of this rectifier.

Abstract: A dynamoelectric machine includes a stator in which a winding system is positioned, and at least a multi-part plug housing with a pivot joint between housing parts of the plug housing. The pug housing has at least one plug-type connector with at least two plugging elements. At least one housing part of the plug housing is made of electrically conductive material and connected to at least one plugging element by a flexible electric line. The electrically conductive housing part of the plug housing faces the dynamoelectric machine and is connected in an electrically conductive fashion to an electrically conductive surface of a motor housing of the dynamoelectric machine.

Abstract: An apparatus monitors discharge processes in a conductor of a medium-voltage system or a high-voltage system. The apparatus contains at least one transformer which is suitable for detecting a current flowing in the conductor. The at least one transformer is connected to a device for monitoring the discharge process. In order to be able to monitor even very short discharge processes in an energy-saving manner, a release and at least one storage circuit are arranged between the transformer and the monitoring device. When a threshold current flowing in the conductor is exceeded, the release switches the monitoring device from a passive mode that is not suitable for monitoring into an active mode that is suitable for monitoring. The storage circuit stores the discharge current to be monitored and/or recorded by the monitoring device.

Abstract: A method produces a data stream. The data stream is subdivided into at least one data segment. A key which is associated unambiguously with that data segment is created. A node is selected from a set of nodes in a network for that data segment on the basis of the key associated with that data segment, and the data segment is transmitted to the node selected for that data segment. Furthermore, a method calls at least one data segment in a data stream by a receiver node. A key which is associated unambiguously with that data segment is produced. A node is selected from a set of nodes in the network for the data segment on the basis of the key associated with that data segment. A request message is sent to the selected node to transmit the data segment associated with the key, and the data segment is received by the receiver.

Abstract: The invention relates to a busbar pack comprising n busbars (2) and at least n-1 insulating bars (4) the surfaces of which project beyond the busbars (2), one insulating bar (4) being interposed between two busbars (2), said stack of bars (2, 4) being immobilized in their position relative each other by devices. The invention is characterized in that at least one inner busbar (2) is provided with a reticular bar (6) on both sides thereof and has perforations (14) that are arranged to match crossbars (12) of corresponding reticular bars (6). The invention allows production of a busbar pack at least the inner busbar (2) of which is convection-cooled, said busbar cooling system being producible at low costs.

Abstract: The present invention relates to a system and a method for processing an initial image of coronary arteries. In accordance with the proposed method, a healthy region and a stenosed region of said arteries are first demarcated in the initial image. A first intermediate image is obtained by generating a contour of said healthy region of said arteries by segmentation of said healthy region using a level set function. A second intermediate image obtained by performing edge detection on said stenosed region. The first and second intermediate images are then combined to obtain a composite image of a single connected component represented by a plane curve on said composite image.

Abstract: A valve of a converter of a high-voltage direct current transmission system has a plurality of valve sections, each comprising a plurality of thyristors electrically connected in series, and a surge arrester, which is electrically connected in parallel to the valve. According to the invention, a surge arrester is connected electrically in parallel to each valve section. Thus a thyristor valve of a converter of a high-voltage direct current transmission system is obtained, which does not require control capacitors.

Abstract: The invention relates to a stator (2), in particular for a housing-less electrical machine (1), wherein substantially axially running cooling channels (3, 13) are located in the stator (2), into which channels cooling pipes (4, 6, 7) can be inserted and, at least in sections, means are provided which, by means of deformation of the cooling channels (3, 13), cause the cooling pipes (4, 6, 7) to be pressed against the cooling channel (3, 13) on the side facing the heat sources of the electrical machine (1); efficient liquid cooling is therefore provided.

Abstract: The invention relates to a short stroke linear motor. In order to improve the dynamics of such a short stroke linear motor, the primary part (12) of the motor is provided with a single-strand winding. The primary part (12) and the secondary part (1) have essentially the same pole pitch (tZ=tM). In this way, a very high motor torque is produced in a limited range of displacement. In order to be able to reach a plurality of working positions without an inactive intermediate position, a short stroke linear motor having a double-strand winding is additionally provided, both strands being operated at a phase difference of <90°. The pole pitch of the primary part and the secondary part are again essentially the same.

Abstract: Converter and method for controlling a converter with power semiconductor switches, having a filter (1) which is connected to the power semiconductor switches and having a drive circuit (4) which is connected to the power semiconductor switches for the purpose of modulation, wherein, as a result of the modulation, a fundamental at a fundamental frequency (fGS) is generated in a passband (P) of the filter (1), modulation products are generated in a first frequency band (FB1), in a second frequency band (FB2) and in an intermediate frequency band (ZFB) which is formed between the first frequency band (FB1) and the second frequency band (FB2), the modulation products in the intermediate frequency band (ZFB) are reduced in comparison with the modulation products in the first frequency band (FB1) and the modulation products in the second frequency band (FB2),; and the intermediate frequency band (ZFB) is generated, in a resonant range (R) of a resonant frequency (fres) of the filter (1), between the passband (P) a

Abstract: A method and system for brain tumor segmentation in multi-spectral 3D MRI images is disclosed. A trained probabilistic boosting tree (PBT) classifier is used to determine, for each voxel in a multi-spectral 3D MR image sequence, a probability that the voxel is part of a brain tumor. The brain tumor is then segmented in the multi-spectral 3D MRI image sequence using graph cuts segmentation based on the probabilities determined using the trained PBT classifier and intensities of the voxels in the multi-spectral 3D MR image sequence.

Abstract: A hanging protocol simulator system and method permit the design and storage of hanging protocol without requiring the actual hardware utilized in the design. The creation and/or modification of hanging protocols can be made either: a) automatically, by sending images to the simulator and receiving the configuration based on these images, or b) manually, in which case the user utilizes a hanging protocol editor to define the preferred screen layout. The user can define a preferred screen layout and then test it, without need of available real hardware, and can check the performance of the configuration long before investing in the ultimately required hardware. A database is provided for storing hanging protocols which can be accessed, and/or user-provided input can further be provided to define or refine hanging protocols.

Abstract: The HMI system is provided with a mobile control and monitoring device for automation components of a technical system. It comprises means for contactless data transmission between the mobile control and monitoring device and the automation components, a manual device for triggering or blocking security relevant operations of the technical system and means for locating the mobile control and monitoring device. Evaluation means are provided for managing an active operational area and which activate the automation components for security-relevant operations of the technical system via the mobile control and monitoring device solely when the manual device is released and the locating means detect that the mobile control and monitoring device is located inside the active operational area, the advantage thereof being that manual triggering of security-relevant operations by an operator is the condition upon which they can be activated via the mobile control and monitoring device.

Abstract: The present invention relates to a method for imaging using an image-generating, endoluminal instrument (1) by means of which a sequence of 2D image data of a hollow channel (2), in particular a vessel, of an object under investigation is recorded, wherein the images are recorded in a known temporal relation to a periodic movement of the object under investigation and spatial coordinates of the image are captured by means of a position sensor during each recording of an image (5) and stored as position data (9, 10) together with the 2D image data of the image (5). The method is characterized in that first position data (10) which does not lie in a predefinable movement phase of the object under investigation is corrected, before or after being stored, by interpolation between second position data (9) which does lie in the specified movement phase and/or by subtraction or addition of predetermined values.

Abstract: The invention relates to a burner having an annular premixing channel in which fuel can be discharged in a radially distributed manner. The radial distribution of the fuel can be regulated during operation of the burner in that fuel can be supplied, independently of one another, into a first and a second part of admission devices having admission holes varying radially in opposite direction by means of fuel supply lines. The invention also relates to a method for operating a gas turbine in which radial distribution of the fuel is regulated in a premixing channel of a burner.

Abstract: The invention relates to an automation system with a control unit, to which at least one sensor or actuator is connected. To connect it to the control unit, the sensor or actuator is connected to the connector which features an RFID chip with relevant data of the sensor or actuator. The data for use in the control unit can be read out by means of a reader.

Abstract: A compression device has a compression plate that applies a pressure to a subject on a support plate. The compression plate has a number of elastically-deformable compression plate elements that are substantially transparent for an examination field used with the compression device. In a method for compressing a subject, at least one pressure sensor measures the pressure applied by a compression device to a subject, and wirelessly supplies a signal representing the detected pressure to a control unit, wherein the detected pressure is compared to a stored compression pressure value. The control device adjusts the pressure applied to the subject by the compression device so that the pressure detected by the sensor is equal to the stored compression pressure value.

Abstract: A method and device are provided for suppressing periodic interference signals, including a unit which is used to provide a period length for the periodic interference signal, an interference detection unit for detecting a signal corresponding to the interference signal, and a subtraction unit for subtracting the signal corresponding to the interference signal. The interference detection unit carries out multiple superpositioning of the input signal and scales the multiple superpositioned input signal depending on the period length of the interference signal in order to detect the signal corresponding to the interference signal.

Abstract: A method for producing a correlation between a first state of a piezoelectric component (1, 20) comprising a piezoceramic element and a second state of the component comprises the following steps: a) a first group of components respectively in the first state is prepared (101), b) at least one defined characteristic of each component of the first group is determined (102), c) the piezoceramic element of the components of the first group is polarised, and a corresponding component of a second group in the second state is thus created from each component of the first group (103), d) at least one defined characteristic of each component of the second group is determined (104), and e) the correlation is produced by comparing the defined characteristics of each component of the first group with the defined characteristic of the corresponding component of the second group (105).

Abstract: A conductor for windings cooled by liquid, especially for transformer windings, has an insulating covering which surrounds the entire conductor (1). At least one layer (2) of the covering completely surrounds the conductor (1). An external layer (3) provided with at least two layers (2, 3) of the covering comprises openings (4), holes (5) or frays (6) through which a coolant flowing around the conductor is placed in a turbulent state and better heat exchange is obtained.