Abstract: A device switches a direct current in a branch of a direct current voltage network node. The device contains a constant current path extending between two connection terminals, in which a mechanical switch is disposed. The device further has a switching current path bridging the constant current path and a power switching unit is disposed therein. The power switching unit has power semiconductor switches which can be switched on and off and configured to interrupt a short-circuit current in the event of a fault. The device contains a longitudinal voltage source for generating a counter-voltage in a loop formed by the constant current path and the switching current path. The device can be used economically over long periods of time to control the load flow on a network node. Accordingly, the longitudinal voltage source has a circuit for connecting and disconnecting the electrical power.

Abstract: A steam generator is provided. The steam generator has a combustion chamber having a peripheral wall formed at least partially from gas-proof, welded steam generator pipes, at least two additional inner walls formed at least partially from additional steam generator pipes which are arranged inside the combustion chamber. The inner walls are connected one behind the other on the flow medium side by an intermediate collector. The steam generator has a high service life and is reliable. The flow medium on the inlet of the inner wall upstream of the intermediate collector has a lower temperature than that of the flow medium on an inlet of the peripheral wall.

Abstract: In a method and a magnetic resonance system for acquisition of spectroscopy data in a predetermined volume segment of an examination subject, spectroscopy data in the volume segment are acquired in multiple measurement steps, and spatially resolved MR data of the examination subject also are acquired in multiple measurement steps. Each of the measurement steps to acquire the spectroscopy data or to acquire the MR data respectively includes an excitation step and a readout step associated with that excitation step. At least one of the measurement steps to acquire the MR data occurs between one of the measurement steps to acquire the spectroscopy data and another of the measurement steps to acquire the spectroscopy data.

Abstract: A closing assembly for closing a blade ring inserted into a circumferential T-groove of a blade support of a turbomachine, having two insertion elements, each has a C-shaped basic form having a resting leg, retention leg, and connection leg connecting the resting leg and the retention leg and is designed to reach around a ridge of the T-groove. The resting leg reaches over the ridge and the retention leg reaches under the ridge, and an intermediate element, is positioned between the insertion elements to prevent the insertion elements from moving to the center of the T-groove. The intermediate element reaches below the retention legs of the insertion elements in the assembled state, and a positioning element is associated with the intermediate element, which is supported between the groove base of the T-groove and the intermediate element and to position the intermediate element at a desired distance from the groove base.

Abstract: A wheel disk assembly, having a wheel disk, a plurality of blade devices, which are fastened along the outer circumference of the wheel disk, and a plurality of sealing plates, which are retained in two annular grooves radially spaced apart from each other. A first annular groove is in the wheel disk and a second annular groove is formed by the blade devices in a segmented manner. Simplified mounting of the sealing plates is achieved in that the first annular groove is expanded by an axially extending recess.

Abstract: The present disclosure relates to electrolysis systems and methods. The teachings thereof may be embodied in methods and systems for the utilization of carbon dioxide and production of carbon monoxide. For example, a method may include: passing an electrolyte and carbon dioxide in front of a cathode through a cathode chamber; and removing electrolysis byproducts from an electrolyte/electrolysis product mixture using a catalytic filter system. The cathode may include material to reduce carbon dioxide. The process may generate a hydrocarbon compound or carbon monoxide as the electrolysis product and a formate as an electrolysis byproduct. The filter system may include a functionalized complex or a functionalized support material which catalyzes a cleavage reaction of formates (a) to hydrogen and carbon dioxide, or (b) to water and carbon monoxide.

Abstract: An insulating tape having a tape adhesive comprising at least one tape accelerator. The tape accelerator may be comprised of an imidazole, an imidazole derivative, a pyrazole, a pyrazole derivative, and combinations thereof. The tape is particularly useful for insulation for stator coils of electrical machines.

Abstract: An embodiment of the present invention relates to a model generating method and apparatus, for realizing automatic creation of a system model. A model generating method of an embodiment includes: collecting configuration information of a system; extracting semantic description information from the configuration information; generating a model of the system according to the semantic description information, the model of the system including a relationship between model nodes and the model nodes corresponding to a device in the system or data produced by a device in the system. By extracting semantic description information from configuration information to generate a system model, a method for realizing automatic creation of a system model is provided, giving higher precision than manual creation of a system model.

Abstract: A rotor, in particular a gas turbine rotor, having multiple rotor discs, each of which has an axial through-opening, and the rotor discs are axially clamped by at least one tie rod extending through the through-openings and are combined so as to form at least one rotor disc unit. At least one support ring which surrounds the tie rod and is in engagement with a paired rotor disc rests against the outer diameter of the tie rod, and the tie rod is supported against the rotor disc by the support ring. In order to axially secure the at least one support ring, at least one securing ring is provided which is secured to the paired rotor disc by a rotational lock and which holds the support ring against the rotor disc. The securing ring is prevented from unscrewing by a securing plate.

Abstract: The present disclosure relates to electrochemical utilization of carbon dioxide. The teachings may be embodied in methods and electrolysis systems in which carbon dioxide is introduced into an electrolysis cell and reduced at a cathode. For example, a reduction method for carbon dioxide utilization by means of an electrolysis system may include: delivering carbon dioxide into a chamber containing a cathode; introducing a first material in the cathode chamber, enabling catalysis of a reduction reaction of carbon dioxide to a hydrocarbon compound or to carbon monoxide; and introducing a second material together with the electrolyte or a reactant/electrolyte mixture into the cathode chamber or metered separately into the cathode chamber. The second material enables cocatalysis of the reduction reaction by promoting charge transfer from the cathode to the first material.

Abstract: An electronic switching device includes a housing with at least one housing door, a lockable rotary handle rotatable at least between an ON position and an OFF position, a handle locking device for locking the rotary handle at least in the OFF position when engaged, and a POFF device for preventing the rotary handle to be rotated and/or fixed in OFF position when activated. The electronic switching device further includes a locking coulisse, movably arranged at the electronic switching device and arrangeable in at least a first position, a second position and a third positions with respect to the housing of the electronic switching device. The locking coulisse is configured for allowing an engagement of the handle locking device and the POFF device in the first position, locking the housing door in the second position and blocking the activation of the handle locking device in the third position.

Abstract: A superconducting coil device includes at least one coil winding, including at least one first and one second superconducting strip conductor, the first and second strip conductors each having a superconducting layer and a contact side provided with a contact layer; at least one first contact electrically connecting the contact side of the first strip conductor to an external circuit via a first contact piece; at least one second contact electrically connecting the contact side of the second strip conductor to the external circuit via a second contact piece; and a third contact electrically connecting the first and second strip conductors via the contact layer of the first and the second strip conductor within the coil winding, wherein the contact side of the first strip conductor has a different orientation relative to a center of the coil winding than the contact side of second strip conductor.

Abstract: A method controls the operation of electric energy generators. A correction signal is sent to the control device and indicates a deviation of a current energy requirement of a supply network from a planned energy requirement. The control device transmits control signals to the energy generators, the correction signal being used for determining the control signals. To react to a correction signal, a control energy quantity is determined which indicates an energy quantity to be jointly provided by all energy generators, and a first energy generator is selected for providing a proportion of the control energy quantity. Further energy generators are sequentially selected, until the extent of the control energy quantity has been completely assigned to respective selected energy generators, and control signals are generated for the selected energy generators, which control signals indicate the proportions of the control energy quantity to be provided by the energy generators.

Abstract: A method of guiding a catheter during an embolization operation includes receiving volume data of a patient volume, the patient volume including a lesion and a feeding vessel for the lesion, detecting the feeding vessel in the volume data, define a vessel connection path for the feeding vessel, the vessel connection path connecting first and second points in the volume data, the second point being disposed along the feeding vessel, receiving fluoroscopic projection data of the patient volume, and rendering the fluoroscopic projection data with an overlay during the embolization operation, the overlay including the vessel connection path for the feeding vessel.

Abstract: A method is provided for operating a multi-cell power supply that includes multiple series-connected power cells in each of multiple legs. Each power cell includes a bypass device that may be used to selectively bypass and de-bypass the power cell. After a first power cell faults and is bypassed as a result of the fault, the method includes de-bypassing the first power cell without stopping the multi-cell power supply if the first power cell fault was caused by a predetermined operating condition. Numerous other aspects are provided.

Abstract: A transportation device, such as a rail vehicle, has a water supply device with a freshwater tank, at least one used water device connected to the freshwater tank and a collecting container connected to the used water device. The collecting container collects and stores used water which comes from the used water device The water supply device includes a control device which, by way of at least one control signal, can predefine one of at least two different operating modes, specifically a normal operating mode and an economy operating mode in which, compared to the normal operating mode, at least one operational resource which is necessary to operate the water supply device is consumed to a lesser extent than in the normal operating mode.

Abstract: A device switches a direct current. The device contains an operating current branch in which a mechanical switch is arranged, a protective switch connected to the operating current branch for interrupting the current flow in the operating current branch, a capacitor branch connected in parallel with the operating current branch in which capacitor branch a capacitor is arranged, and a damping apparatus which has a resistance element. The damping apparatus is arranged in the capacitor branch in series with the capacitor or in the operating current branch in series with the mechanical switch, which damping apparatus can be bypassed by a bypass switch connected in parallel with the damping apparatus.

Abstract: A slurry composition for aluminizing a superalloy component is provided, wherein the slurry includes an organic binder and a solid content including at least aluminum, silicon, and at least one of hafnium or yttrium.

Abstract: A connector part which is a female connector part for engagement with a male connector part having a pin. A connector body has a front portion with an opening for receiving a pin of a male connector part. A chamber inside the connector body is filled with dielectric liquid. A shuttle pin is configured to seal the opening in the front portion of the connector body when the connector part is in a de-mated state. The shuttle pin is moveable rearwardly into a rear portion of the connector body during mating. The first latching mechanism latches the shuttle pin to the pin of the male connector part during mating. A second latching mechanism in the rear portion of the connector body inside a fluid-filled chamber latches at least one of the shuttle pin or the pin towards the connector body in a mated state.

Abstract: A differential voltage measuring system is described. The differential voltage measuring system has a signal measuring circuit for measuring bioelectric signals, and an interference-signal measuring circuit coupled to the potential of the differential voltage measuring system and electrically connected to a fixed reference potential. In this case, the interference-signal measuring circuit is designed for measuring a current flowing from the potential of the differential voltage measuring system to the fixed reference potential. A differential voltage measuring system with an additional path is also described. Furthermore, a differential voltage measuring system with an averaging potential measuring method is described.