Abstract: A gas seal which extends in a circumferential direction in an axis has a rotating slip ring and an axially movable stationary slip ring. A slip sleeve guides the stationary slip ring in the axial movement direction by a first sliding face on a second sliding face. The slip sleeve is fastened to a stator of the gas seal, wherein the slip sleeve has a first recess extending in the circumferential direction, and the stator has a second recess, opposite the first recess in the region of the fastening, extending in the circumferential direction, such that the first recess and the second recess define a common cavity extending in the circumferential direction. In the cavity there is an elongate fixing element which at least partially fills the first recess and the second recess such that an unlimited axial relative movement is only possible when the fixing element is radially deformed.

Abstract: Various embodiments include methods and arrangements for identifying obstacles on escape routes, in particular in buildings, wherein a desired state of the escape route is stored in particular in a corresponding data model on a computer system as a reference state; wherein an actual state of the escape route is acquired by the computer system and is mapped in the data model; and wherein by comparing the actual state with the stored reference state determines whether the escape route has obstacles.

Abstract: Various embodiments include a reactor for implementation of equilibrium-limited reactions comprising: a reaction space; a reactant feed; an outlet for reaction products; a device for accommodating catalyst material; and a stirrer device comprising: a hollow shaft with a gas inlet opening at one end of the hollow shaft; a first stirrer paddle with gas exit orifices mounted on the hollow shaft; and a second stirrer paddle mounted on the hollow shaft proximate the device for accommodating the catalyst material.

Abstract: In a method for monitoring a magnetic bearing device for an electric rotating machine, a first pair of at least essentially diametrically opposed sensors and a second pair of at least essentially diametrically opposed sensors are arranged in offset relation about an angle. A distance is determined between each of the sensors and a body of rotation arranged inside the first and second pairs of sensors. A first average distance is determined from distance values of the first pair of sensors and a second average distance is determined from distance values of the second pair of sensors. A first change in the first average distance is captured and a second change in the second average distance is captured. The first and second changes are compared and a warning signal is outputted when a difference between the first and second changes exceeds a limit value.

Abstract: In order to provide radiation dose estimation during a treatment, one or more characteristics of the patient are used. A camera captures the patient so that the characteristics (e.g., organ position) may be derived. Radiation exposure and/or absorption are determined from the characteristics. A Monte Carlo, machine-learnt, or other model estimates the dosage for different locations in the patient. During the treatment, the dosage may be presented as a warning when exceeding a threshold or other visualization.

Abstract: A magnetic resonance facility is operated by an external control device. The magnetic resonance facility includes an interface for communicating with the external control device and establishes a communications link between the external control device and the magnetic resonance facility via the interface, acquire an instruction from the external control device via the interface, and carries out the instruction on the magnetic resonance facility.

Abstract: A method and system for non-invasive assessment of coronary artery stenosis is disclosed. Patient-specific anatomical measurements of the coronary arteries are extracted from medical image data of a patient acquired during rest state. Patient-specific rest state boundary conditions of a model of coronary circulation representing the coronary arteries are calculated based on the patient-specific anatomical measurements and non-invasive clinical measurements of the patient at rest. Patient-specific rest state boundary conditions of the model of coronary circulation representing the coronary arteries are calculated based on the patient-specific anatomical measurements and non-invasive clinical measurements of the patient at rest. Hyperemic blood flow and pressure across at least one stenosis region of the coronary arteries are simulated using the model of coronary circulation and the patient-specific hyperemic boundary conditions.

Abstract: A strap-fastening apparatus for fastening safety straps is provided, wherein the strap-fastening apparatus has at least one fastening rail and at least one fastening clip. The at least one fastening clip has a strap-fastening element and the strap-fastening element, in a state of the at least one fastening clip arranged with the at least one fastening rail, is arranged within the at least one fastening rail.

Abstract: A method for updating process objects of an automation project stored in an engineering system, wherein an automation device is designed and/or configured via the engineering system to control a technical process and wherein, furthermore, the technical process to be controlled can be operated and monitored via an operator system in which changes to process objects made during the run-time are not lost but secured and are automatically “updated” or “traced” in the engineering system.

Abstract: A method and system for simulating patient-specific atrial electrophysiology is disclosed. A patient-specific anatomical atria model is generated from medical image data of a patient. A patient-specific atria electrophysiology model is generated based on the patient-specific anatomical atria model and electrophysiology measurements of the patient. One or more virtual electrophysiological therapies are performed by performing atrial electrophysiology simulations using the patient-specific atria electrophysiology model. Atrial electrophysiology simulation results resulting from the one or more virtual electrophysiological therapies are displayed.

Abstract: A slip-ring arrangement for an electrical rotary machine has a rotor and a sliding-contact device which is arranged on the rotor and has a slip ring, and a sliding-contact element with which the slip ring can make electrical contact. Furthermore, a radial fan impeller with an intake device is arranged on the rotor, wherein the intake device is designed in such a way that, during operation of the radial fan impeller, a cooling fluid can be drawn into the radial fan impeller through the intake device along the sliding-contact device. Furthermore, the slip-ring arrangement has a spiral housing which is of spiral design and surrounds a radial circumference of the radial fan impeller.

Abstract: A method for acquiring an image volume using a magnetic resonance imaging device includes performing an acquisition process to acquire a first dataset corresponding to a first portion of an anatomical region of interest at a first slice resolution, wherein the first dataset comprises a first plurality of three-dimensional slabs or a first plurality of two-dimensional slice regions. Additionally, one or more additional acquisition processes is performed to acquire a second dataset corresponding to a second portion of the anatomical region of interest at a second slice resolution that is lower or higher than the first slice resolution, wherein the second dataset comprises a second plurality of three-dimensional slabs or a second plurality of two-dimensional slice regions. Once the datasets are acquired, a reconstruction process is applied to jointly reconstruct the first dataset and the second dataset as a single consistent volume.

Abstract: A method for producing an image of a subject using a magnetic resonance imaging (MRI) system includes acquiring a series of echo signals by sampling k-space along radial lines that each pass through the center of k-space. Each projection of the radial lines is divided into multiple echoes and successive projections are spaced by a predetermined angular distance. The series of echo signals are reconstructed into a plurality of images, wherein each image corresponds to a distinct echo signal.

Abstract: In a method and apparatus for correction of magnetic resonance image data, at least on environmental conditions map is provided to a computer, measurement data are acquired using a prospective correction method and storage of a first set of correction data, established within the framework of the prospective correction method, is stored. Image data are reconstructed from the recorded measurement data, and a second set of correction data are determined for the created image data and/or the recorded measurement data by a second correction method on the basis of the environmental conditions map and on the basis of the first set of correction data. Corrected image data are generated using the second set of correction data.

Abstract: For count loss correction, the capability of the discriminator, measured periodically, to detect an event is identified. Rather than inserting an actual event or a signal emulating an actual event for discrimination, the capability to discriminate is tested by a virtual injection. The count loss may be directly measured without causing extra actual discrimination by the discriminator. Direct measurement with virtual testing may avoid loss of accuracy due to time and use-case variation.

Abstract: A process extends manufacturing execution system (MES) functionalities in a domain having MES lineage contextualized entities (MLCEs) and commands. The process includes selecting a command implementing the functionality to be extended; contextualizing the command with a MLCE to obtain an entity contextualized command (ECC); extending the MLCE and the ECC, to obtain an extended MLCE (EMLCE) and an extended ECC (EECC); registering in the routing system a first and second handler of the command in association with the lineage of the MLCE and the EMLCE; and communicating between domains by delivering message(s) including a name of the command and the MLCE or the EMLCE, the routing system selecting the first or the second handler, for executing the functionality or the extended functionality, based on a mapping between the lineage registered for the first or the second handlers in the routing system, and a lineage derived from the message.

Abstract: A method comprises: detecting a plurality of radiation events using a plurality of radiation detectors; determining a fraction of the plurality of radiation events, such that a coincidence circuit has sufficient capacity to process each radiation event in the fraction of the plurality of radiation events; counting the determined fraction of the plurality of radiation events using the coincidence circuit, and excluding a remainder of the plurality of radiation events from the counting; and performing positron emission tomography (PET) processing on each radiation event in the fraction of the plurality of radiation events.

Abstract: A computer-implemented method for exploration of medical visualization parameters in virtual spaces includes detecting a user location and a user orientation in a physical space and generating a display of an immersive layout centered at the user location and the user orientation. A plurality of holograms is generated within in the immersive layout. Each hologram depicts a rendering of a medical image with a distinct combination of rendering parameter values. The display is updated based on a change to one or more of the user location and the user orientation in the physical space.

Abstract: A film-cooled gas turbine component for a gas turbine has a surface exposed to a hot gas and a number of film-cooling openings open out, which film-cooling openings combined to form at least one row transverse to a flow direction of the hot gas. Each of the film-cooling openings has a duct section and a diffuser section having an upstream diffuser edge, two diffuser longitudinal edges and a downstream diffuser edge. At least two immediately adjacent film-cooling openings, of the respective row have their duct axes of the respective duct sections laterally inclined relative to the local flow direction of the hot gas and their diffuser sections are formed asymmetrically with respect to a projection of the duct axis, such that immediately adjacent corner regions of the respective film-cooling openings are in alignment without the respective diffuser sections making contact with one another.