Abstract: A nebulizer unit for use in a nebulizer includes an aerosol generator, a housing, a medication reservoir and a cap. The aerosol generator having a supply side and a discharge side, which is retained between a sealing ring at the supply side and a retaining structure at the discharge side. The housing encloses the aerosol generator, the sealing ring and the retaining structure. The medication reservoir is integrated into the housing and includes an interior hollow volume, into which the medication liquid is introduced. The cap seals the reservoir, and includes a closure pin that subdivides the interior space of the reservoir into a first partial volume another partial volume. The liquid-tight closure being formed by the complementary partial surfaces. At least one of the two complementary partial surfaces of the closure pin and of the inner space of the reservoir having a rubber or silicone covering.

Abstract: A charge pump structure is disclosed. In an embodiment a regulated charge pump structure includes an output terminal configured to provide a regulated output voltage, a first charge pump configured to generate the output voltage as a function of an input supply voltage and a control circuit configured to limit a level of the output voltage and to generate a control voltage, wherein the level of the output voltage is controlled by the control voltage such that the output voltage does not exceed a threshold value.

Abstract: A bushing for switchgear is composed of an outer metal ring, a current-conducting element and a disk-shaped ceramic insulating element which can be mounted in a floating manner in the outer metal ring. There is also described a switchgear with such a bushing.

Abstract: A nebulizer unit includes a housing, an aerosol generator, and an exchangeable mouthpiece. The aerosol generator is supported within the housing by a sealing ring and a retaining structure, and includes an outlet end having an integrally formed mouthpiece connector. The exchangeable mouthpiece is configured to be received by the mouthpiece connector. One side of the mouthpiece includes at least one air channel, each air channel having a first end that opens into an aerosol chamber. The aerosol chamber is delimited at an end face by the aerosol generator and circumferentially by the mouthpiece connector and the mouthpiece.

Abstract: A nebulizer unit includes a housing, which includes an aerosol generator with a feed chamber disposed at one side, an ampoule receiver, an opening device with at least one opening, which is in communication with the feed chamber, and an ampoule with liquid, which comprises at least one opening, with which it can be inserted or used in the ampoule receiver, wherein the ampoule has a connection region, which interacts with a connector of the ampoule receptacle in order to hold the ampoule firmly in the ampoule receiver and to connect the openings such that they are leak tight.

Abstract: In a method for performing an inhalation a reservoir is filed with a medication fluid or a medication container is connected to a designated connecting piece, a nebulizer unit is connected to a control unit and a mouthpiece, the nebulizer unit is activated, the medication fluid is atomized into a fine particulate aerosol which is emitted into an aerosol chamber formed by the nebulizer unit and the mouthpiece, and an inhalation is performed by a user. A pressure within the aerosol chamber and/or a flow rate through the aerosol chamber is measured using the control unit. The nebulizer is activated with each breath on occurrence of at least one activation criterion detected using the control unit. The nebulizer unit is deactivated with fulfillment of at least one stop criterion.

Abstract: The present disclosure is directed to systems and methods for generating one or more farm-level power curves for a wind farm that can be used to validate an upgrade provided to the wind farm. The method includes operating the wind farm in a first operational mode. Another step includes collecting turbine-level operational data from one or more of the wind turbines in the wind farm during the first operational mode. The method also includes aggregating the turbine-level operational data into a representative farm-level time-series. Another step includes analyzing the operational data collected during the first second operational mode. Thus, the method also includes generating one or more farm-level power curves for the first operational mode based on the analyzed operational data.

Abstract: The present disclosure is directed to a system and method for determining wake losses of a wind farm. The wind farm includes a plurality of wind turbines. The method includes operating the wind farm in a first operational mode. Another step includes collecting turbine-level data from at least one upstream wind turbines in the wind farm during the first operational mode. The method also includes estimating a freestream farm-level power output for the wind farm during first operational mode based, at least in part, on the collected turbine-level data. A further step includes measuring an actual farm-level power output for the wind farm for the first operational mode. Thus, the method also includes determining the wake losses of the wind farm for the first operational mode as a function of the measured actual farm-level power output and the estimated freestream farm-level power output.

Abstract: A bushing for switchgear is composed of an outer metal ring, a current-conducting element and a disk-shaped ceramic insulating element which can be mounted in a floating manner in the outer metal ring. There is also described a switchgear with such a bushing.

Abstract: The present disclosure is directed to a system and method for assessing farm-level performance of a wind farm. The method includes operating the wind farm in a first operational mode and identifying one or more pairs of wind turbines having wake interaction. The method also includes generating a pairwise dataset for the wind turbines pairs. Further, the method includes generating a first wake model based on the pairwise dataset and predicting a first farm-level performance parameter based on the first wake model. The method also includes operating the wind farm in a second operational mode and collecting operational data during the second operational mode. Moreover, the method includes predicting a first farm-level performance parameter for the second operational mode using the first wake model and the operational data from the second operational mode. The method further includes determining a second farm-level performance parameter during the second operational mode.

Abstract: An injector for a fuel supply system of an internal combustion engine, namely for a common rail fuel supply system of an internal combustion engine which is formed in particular as a large diesel internal combustion engine or ship's diesel internal combustion engine, having an injection nozzle, a control valve and a retaining body. The injection nozzle and the control valve form a clamped composite, and the composite formed of the injection nozzle and control valve can be mounted on the retaining body as a unit and disassembled from the retaining body as a unit.

Abstract: A method for controlling a wind farm includes: receiving temperature data associated with a plurality of locations along a sound path between the wind farm and a sound immission point from one or more sensors; estimating a propagation characteristic of the sound path based at least in part on the temperature data; predicting a noise level at the sound immission point based at least in part on the propagation characteristic; determining a control signal for one or more wind turbines in the wind farm based at least in part on the noise level; and using the control signal to control the one or more wind turbines.

Abstract: An electrical component may include an electrically conductive element and electrical insulation that at least partially surrounds the element and without contact. A heat pipe may be surrounded by the insulation at least at one end and may partially protrude from the insulation, wherein the part of the heat pipe protruding from the insulation protrudes closer to the central element than the insulation.

Abstract: The present disclosure is directed to a system and method for assessing farm-level performance of a wind farm. The method includes operating the wind farm in a first operational mode and identifying one or more pairs of wind turbines having wake interaction. The method also includes generating a pairwise dataset for the wind turbines pairs. Further, the method includes generating a first wake model based on the pairwise dataset and predicting a first farm-level performance parameter based on the first wake model. The method also includes operating the wind farm in a second operational mode and collecting operational data during the second operational mode. Moreover, the method includes predicting a first farm-level performance parameter for the second operational mode using the first wake model and the operational data from the second operational mode. The method further includes determining a second farm-level performance parameter during the second operational mode.

Abstract: The present disclosure is directed to a system and method for determining wake losses of a wind farm. The wind farm includes a plurality of wind turbines. The method includes operating the wind farm in a first operational mode. Another step includes collecting turbine-level data from at least one upstream wind turbines in the wind farm during the first operational mode. The method also includes estimating a freestream farm-level power output for the wind farm during first operational mode based, at least in part, on the collected turbine-level data. A further step includes measuring an actual farm-level power output for the wind farm for the first operational mode. Thus, the method also includes determining the wake losses of the wind farm for the first operational mode as a function of the measured actual farm-level power output and the estimated freestream farm-level power output.

Abstract: The present disclosure is directed to systems and methods for generating one or more farm-level power curves for a wind farm that can be used to validate an upgrade provided to the wind farm. The method includes operating the wind farm in a first operational mode. Another step includes collecting turbine-level operational data from one or more of the wind turbines in the wind farm during the first operational mode. The method also includes aggregating the turbine-level operational data into a representative farm-level time-series. Another step includes analyzing the operational data collected during the first second operational mode. Thus, the method also includes generating one or more farm-level power curves for the first operational mode based on the analyzed operational data.

Abstract: A metal-cutting machine for flat material parts comprises metal-cutting tools (21, 22, 23), held on a machine frame, and a support unit (10), on which a flat material part to be machined can be placed for a positioning in the metal-cutting machine. The support unit comprises a feed table (10), which is clamped remote from the beams and on one side about a pivot axis that is pivotable parallel to the beam orientation (39) and the free end (26) of which feed table in the parking position rests on a support surface (27) assigned to the lower beam (21), which support surface is connected via a sliding surface (28) to the top side (29) of the lower beam (21).

Abstract: An electrical component may include an electrically conductive element and electrical insulation that at least partially surrounds the element and without contact. A heat pipe may be surrounded by the insulation at least at one end and may partially protrude from the insulation, wherein the part of the heat pipe protruding from the insulation protrudes closer to the central element than the insulation.

Abstract: A rotary piston pump with at least two double- or multi-lobe rotary pistons rotating in opposite directions, the drive shafts whereof include seals, wherein the seals are constituted as slip ring seals or lip seals or stuffing-box seals, which in each case are disposed on the shaft shoulder belonging to the respective rotary piston, and one slip ring per seal is provided with a locking device, which includes a large number of fixing positions. The seals are pushed onto a tubular shoulder of the rotary piston, the rotary piston is introduced into the pump housing, the securing element is connected to the slip ring seal in a form-fit manner by rotation of the rotary piston and the shaft shoulder is then rigidly connected to the drive shaft.

Abstract: A rotary piston pump for the delivery of liquids and for the delivery of liquids containing solids. The rotary piston pump includes a pump housing which is provided with an inlet and an outlet. The pump housing includes a lining. Disposed in the pump housing, or inside the lining, are at least two counter-rotating rotary pistons, which form pump spaces during their rotation. During the rotational movement, the rotary pistons are sealed against one another, against the pump housing and against the lining. Disposed in the pump housing and/or in the lining, in the spatial vicinity of the inlet and/or the outlet, are means with which the pulsation can be reduced or even completely prevented.