Abstract: A power supply system contains a plurality of power generating devices, a plurality of power consuming devices, and a controller. The controller controls the power supply system based on a rated consumption value indicating an anticipated power consumption of the power supply system and also based on a standby value indicating a standby power. The standby value indicates the standby power made available by the power supply system at which emergency measures can be avoided if the actual power consumption deviates from the rated consumption. The power supply system further has a preprocessing device for calculating a rated consumption value and a standby value at which an emergency measure-free operation can be attained with the required probability, based on consumption values recorded in the past and using a probability value defined on the user side which defines the probability of the emergency measure-free operation of the power supply system.

Abstract: Disclosed are new boronizing compositions consisting of boron fluoride and boron oxide, borax, or an iron boride. The compositions reduce the heating temperature and time. Further disclosed are methods of boronizing a metal substrate including these compositions, or any combination thereof.

Abstract: A method compensates for image artifacts in a first imaging device for imaging a first subregion of a body. The image artifacts are caused by a second subregion of the body being disposed outside of a first field of view for the first device. First measured data for the first field of view is acquired by the first device. The first subregion lies in the first field of view. Second measured data are acquired for a second field of view in a second imaging device. Image data representing the subregions in the second device are calculated from the second measured data. A model representing the subregions is calibrated using the calculated image data. The data representing the second subregion in the first device are simulated using a calibrated model. A correction of the first measured data is performed using simulated data for reducing the image artifacts.

Abstract: A clutch mechanism includes a transmission shaft, driven by an output shaft of a motive power device; a clutch element, including an engagement end, in unidirectional transmission connection with the transmission shaft, and a meshing end; a push rod, passing through the clutch element and including a contact end and a fixed end connected to the transmission shaft; a gear shaft, including a transmission gear in transmission connection with the meshing end; a rotary element, surrounding the gear shaft in a rotatable fashion and including a transmission end and a drive end; and a restoring element, one end bearing against the transmission shaft and another end bearing against the output shaft; and a drive gear, in transmission connection with the gear shaft and provided in a circumferential direction with a drive portion capable of pushing the transmission end. A gas insulated circuit breaker including clutch mechanism is also disclosed.

Abstract: An arrangement with an actuator has a transmitting device for transmitting control telegrams with a control command for the actuator. At least two receiving devices receive the control telegrams and generate a control signal for the actuator. A decision device between the receiving devices and the actuator allows the actuator to implement the control signals with a release signal if the control signal is present from all or a minimum number of receiving devices. The transmission device transmits the control command to each receiving device with a receiver-specific control telegram that is provided with a respective control instruction that indicates the continuous telegram number of the respective transmitted control telegram in encrypted or non-encrypted form. The receiving devices accept a control telegram as valid if the control instruction indicates a telegram number that is expected by the receiver. The control signal is generated if the control telegram is valid.

Abstract: A converter outputs reactive power and has three phase branches connected to a phase of an alternating voltage source. Each of the phase branches has a phase module with a series circuit containing two-pole sub modules. A voltage which is dropped across each phase module corresponds to the sum of the voltages which are dropped across the sub modules. The first and the third phase branch are electrically connected to one another by a magnetically coupled throttle pair. A control device controls phase module currents. The control device contains current controllers which are associated with the phase modules, a decoupling unit for decoupling control differences by a computational during control of the phase module currents, a coupling unit for correcting the decoupled computational actuating variables in accordance with the magnetic coupling of the first throttle pair to obtain corrected actuating voltages, and a control unit for driving the sub modules.

Abstract: A manufacturing process for a structure having a porcelain body and a flange includes: inserting an end portion of the body into a flange opening, providing a gap between the body end portion and a metal surface of the flange, filling the gap with adhesive to create a bond between the surfaces, installing an electrically active subassembly in the porcelain body and placing the structure in a heated environment to simultaneously dry the subassembly and fully cure the adhesive to provide the bond.

Abstract: A device for assisting the aligning of a patient support dockable onto an operating table is provided A sensing unit is configured to be arranged on the patient support or the operating table and configured to sense a feature of the patient support and/or of the operating table, said feature lying opposite the sensing unit. The sensing unit configured to sense a position-dependent physical interaction and herefrom to generate a signal that depends on the spatial relative position between the patient support and the operating table. An evaluating unit is configured to receive the signal from the sensing unit and to generate an output that characterizes the relative position between the operating table and the patient support.

Abstract: An exhaust-gas section for a gas turbine, having a surrounding shroud having a first opening, which is arranged in a region of the exhaust-gas section that has a pressure lower than the air pressure of the outer environment of the gas turbine in an operating state of the gas turbine and which forms the outlet of an air channel, the inlet of which is connected to the outer environment of the gas turbine. The air channel has a chamber at the outlet-side end of the air channel, which chamber has a second opening, through which a specified gas mass flow is admitted into the chamber.

Abstract: The present disclosure relates to a detection layer on a substrate. For example, a detection layer may include perovskite crystals of the type ABX3 and/or AB2X4. A may include at least one monovalent, divalent or trivalent element from the fourth or a higher period in the periodic table and/or mixtures thereof. B may include a monovalent cation, the volumetric parameter of which is sufficient, with the respective element A, for perovskite lattice formation. X may be selected from the group consisting of anions of halides and pseudohalides. The layer may have a thickness of at least 10 ?m.

Abstract: The present disclosure relates to thermochemical heat storage units. The teachings thereof may be embodied in systems and methods for operating, including charging and discharging, a thermochemical heat storage unit. For example, a method for operating a thermochemical heat storage unit may include: producing a first steam and feeding it to a heat exchanger; partially condensing the steam with release of its thermal energy, in the heat exchanger; subsequently pressurizing water condensed from the steam; feeding the pressurized water to the heat exchanger; evaporating the water into a second steam; and storing at least a portion of the second steam in a steam storage unit.

Abstract: An arrangement and a method of rotating a hub of a wind turbine are provided. A wind turbine includes a hub mounted to a nacelle, whereby the hub is rotatable around an axis of rotation in respect to the nacelle. A rotor blade is arranged at the hub that leads to a torque around the axis of rotation of the hub. A counter weight is attached to the hub, whereby the counter weight has a mass that leads to a counter-torque around the axis of rotation. The counter-torque interacts with the torque during the installation of a second rotor blade to the hub. The counter weight is mounted to the hub by a mechanical arrangement that is rotatable in respect to the hub around the axis of rotation of the hub. The mechanical arrangement and the counter weight are rotatable in respect to the hub into a certain predetermined position.

Abstract: A method and an imaging system are disclosed. The method, for determining at least one value of at least one recording parameter for a recording of an X-ray image of a patient positioned on an examination table, uses contactless scanning of at least part of the surface of the patient via at least one electromagnetic sensor, to calculate the three-dimensional contour of the scanned surface without additional exposure to radiation. At least one anatomic landmark of the patient can be identified using the three-dimensional contour, and the position of the anatomic landmark is determinable in the coordinate system of the table. The value of the recording parameter is determinable using the position of the anatomic landmark. The value of the recording parameter is determinable quickly and easily since contactless scanning of surfaces can be achieved quickly and easily in terms of technology.

Abstract: Gas turbine engine blade squealer tips incorporate cooling slots formed in the suction side rail downstream of the leading edge for directing cooling gas flow along an inside edge of the squealer tip pressure side rail. Some embodiments incorporate a tip fin on the suction side rail proximal a cooling slot. Segmented suction side rail embodiments abrade opposing turbine casing abradable surfaces prior to potential contact with the pressure side rail, reducing likelihood of pressure side rail friction heating. During turbine engine operation cooler pressure side rails reduce likelihood of squealer tip erosion.

Abstract: A method for starting a continuous steam generator is provided. The steam generator includes a combustion chamber provided with a plurality of burners, a water-steam separation device that is mounted downstream of evaporator tubes of the water-steam separation device on a flow-medium side. The amount of water flowing into the water-steam separation device during a starting process is kept to a minimum. The firing power of at least one of the burners is adjusted in accordance with a filling level characteristic value of the water-steam separation device.

Abstract: A silo combustion chamber for a gas turbine having a flame tube having an inner wall and flame tube base delimiting a combustion chamber; an outer wall surrounding the inner wall, forming a cavity; an annular chamber at least partly surrounding the outer wall and a number of supply lines fluidically coupled to the hot side of a heat exchanger during operation of the turbine; a number of burners, each of which opens into the combustion chamber on the outlet side through an opening in the flame tube base. The oxygen supply is fluidically connected to the annular chamber. A collecting chamber is arranged over the flame tube base. The annular chamber is connected to the collecting chamber via each connecting piece, each burner is fluidically connected to the collecting chamber to supply oxygen. The cavity between the inner and outer wall is locally fluidically separated from the collecting chamber.

Abstract: A method and an apparatus for a magnetic resonance imaging system are provided. A type of further processing of signals transmitted by a local coil to a magnetic resonance imaging (MRI) system is determined in dependence on information received in or from the local coil about a local-coil type of the local coil.

Abstract: A method is disclosed for selectively turning off a switch arrangement for current distribution. A corresponding switch arrangement is also disclosed, including an upstream switch and a directly downstream switch connected in series, each switch being configured to check a current condition associated therewith. Connected between the upstream switch and the downstream switch is a communication link onto which the downstream switch puts a delay signal if its current condition is met and there is no fault present. Following reception of the delay signal, the upstream switch opens only after a delay time. In order to ensure turning off when there is a fault in the opening of a downstream switch even in the case of small overcurrents, when the current condition is met and the fault that prevents opening occurs, the downstream switch puts a fault report onto the communication link that trips the upstream switch.

Abstract: A molded-case circuit breaker includes a handle, a contact system and an actuating device. In an embodiment, the handle is movable between an “ON” position and an “OFF” position, the contact system includes at least one stationary contact and a movable contact and the actuating device is operatively connected to the handle and the contact system such that, when the handle is actuated, it is possible to open and close the contact system. Furthermore, in the event of a fault state, the handle can be brought into a “TRIP” position arranged between the “ON” position and the “OFF” position by the actuating device.