Abstract: A method for operating a burner, comprising supplying a controlled quantity of combustion air to the burner, supplying a controlled quantity of fuel to the burner, igniting the air-fuel mixture in the burner, determining a pressure pulsation value in the exhaust gas downstream of the burner and/or in an air path upstream of the burner, and adjusting the quantity of combustion air and/or the fuel depending on the pressure pulsation value. Further proposed are a computing unit and a computer program product for performing such a method.

Abstract: The present invention relates to heteroleptic complexes comprising a phenylimidazole or phenyltriazole unit bonded via a carbene bond to a central metal atom, and phenylimidazole ligands attached via a nitrogen-metal bond to the central atom, to OLEDs which comprise such heteroleptic complexes, to light-emitting layers comprising at least one such heteroleptic complex, to a device selected from the group consisting of illuminating elements, stationary visual display units and mobile visual display units comprising such an OLED, to the use of such a heteroleptic complex in OLEDs, for example as emitter, matrix material, charge transport material and/or charge blocker.

Abstract: The present invention relates to a cell comprising (aa) a nucleic acid comprising in 5? to 3? direction (i) at least one adeno-associated virus (AAV) inverted terminal repeat (ITR) sequence; (ii) a promoter which is capable of being activated by (a) helper polypeptide(s) and optionally (a) helper polynucleotide(s); and (iii) a transgenic coding sequence under the control of said promoter of (aa)(ii); and (ab) a nucleic acid comprising in 5? to 3? direction (i) a promoter which is capable of being activated by said helper polypeptide(s) and optionally said helper polynucleotide(s); and (ii) at least one AAV rep gene coding sequence under the control of said promoter of (ab)(i); wherein said cell does not comprise an AAV cap gene and/or is not able to express any AAV cap gene product.

Abstract: A coupling arrangement for a screw coupling for liquid conduits of a high-pressure cleaning apparatus is provided. The coupling arrangement includes a plug part which is pluggably connectable to a complementarily configured plug part of a second coupling arrangement of the screw coupling for establishing a liquid-tight and releasable connection therewith with a sealing ring interposed therebetween, and a connecting part having a thread that is screwably connectable to a complementarily configured thread of the second coupling arrangement. The thread can be of multiple-threaded configuration and the connecting part can include a clamping element which is aligned in an in-line relationship with the thread relative to the thread longitudinal axis and is releasably clampable against a complementarily configured clamping element of the second coupling arrangement by axially inserting one into the other.

Abstract: A coupling arrangement is provided for a screw coupling for liquid conduits of a high-pressure cleaning device. The coupling arrangement is connectable in a liquid-tight manner to a further coupling arrangement of the screw coupling, and includes a conduit piece having a channel for liquid under pressure, a multi-start thread for screwing the coupling arrangement to the further coupling arrangement, and a clamping device which is clampable to a clamping face of the further coupling arrangement. The clamping device includes a dimensionally stable clamping ring mount on which a clamping ring is held, wherein the clamping ring is deformable and adaptable to the shape of the clamping face by pressing onto the clamping face of the further clamping arrangement. In addition, a screw coupling with a coupling arrangement of that kind is provided.

Abstract: A nozzle arrangement includes a nozzle inlet part having an inlet duct for liquid under pressure, and a nozzle outlet part which is displaceable relative to the nozzle inlet part between a first and second position and which has a high-pressure nozzle and a low-pressure nozzle each configured as a fan-jet nozzle. In the first position, only the high-pressure nozzle is connected to the inlet duct and in the second position the high-pressure and the low-pressure nozzles are connected to the inlet duct. The at least one low-pressure nozzle is arranged radially offset to the high-pressure nozzle, and the nozzle outlet part has a connecting nipple via which the high-pressure nozzle is in a flow connection with the inlet duct and which interrupts or allows a flow connection of the inlet duct with the low-pressure nozzle depending on whether the nozzle outlet part is in the first or second position.

Abstract: A coupling arrangement for a screw coupling for liquid conduits of a high-pressure cleaning apparatus is provided. The coupling arrangement includes a plug part which is pluggably connectable to a complementarily configured plug part of a second coupling arrangement of the screw coupling for establishing a liquid-tight and releasable connection therewith with a sealing ring interposed therebetween, and a connecting part having a thread that is screwably connectable to a complementarily configured thread of the second coupling arrangement. The thread can be of multiple-threaded configuration and the connecting part can include a clamping element which is aligned in an in-line relationship with the thread relative to the thread longitudinal axis and is releasably clampable against a complementarily configured clamping element of the second coupling arrangement by axially inserting one into the other.

Abstract: A wheel washing apparatus is provided, including at least two washing brushes, each of which is capable of being driven in rotation about a brush axis, wherein the brush axes of the at least two washing brushes are different from one another. In order to provide a wheel washing apparatus which allows a better cleaning result to be achieved, it is proposed that the at least two washing brushes be capable of being driven in rotation about a common central axis which is different from the brush axes.

Abstract: A wheel washing apparatus is provided, including at least two washing brushes, each of which is capable of being driven in rotation about a brush axis, wherein the brush axes of the at least two washing brushes are different from one another. In order to provide a wheel washing apparatus which allows a better cleaning result to be achieved, it is proposed that the at least two washing brushes be capable of being driven in rotation about a common central axis which is different from the brush axes.

Abstract: A method is provided for inserting a plastic body into an opening of a sensor housing, whereby the opening has a lateral surface with an edge, in that a collar-shaped bead is formed at the edge and a shoulder-shaped ledge at the lateral surface for the placement of the plastic body, before the placement of the plastic body a strip-like seal is introduced onto the ledge, the plastic body is placed on the ledge of the lateral surface in such a way that a lateral surface of the plastic body is lined up with the lateral surface of the sensor housing in a butt-joint-like manner, a form-fitting, elastically supported connection is created by means of forming between at least one part of the lateral surface of the sensor housing and one part of the lateral surface of the plastic body, so that a substantially seamless and substantially smooth transition between the sensor housing and the plastic body is formed at the connection site on the top side of the sensor housing and of the plastic body.

Abstract: A method for producing a connection between a metal surface and a plastic surface, in which a collar-shaped bead and a lateral surface with a shoulder-shaped ledge for the placement of the plastic surface are formed at least one edge at the metal surface, before the placement of the plastic surface a strip-like seal is introduced onto the ledge. The plastic surface is placed on the ledge of the lateral surface in such a way that a lateral surface of the plastic surface is lined up with the lateral surface of the metal surface in a butt-joint-like manner, and a form-fitting, elastically supported connection is created by forming between at least one part of the lateral surface of the metal surface and one part of the lateral surface of the plastic surface, so that a substantially seamless and substantially smooth transition between the metal surface and plastic surface is formed at the connection site on the top side of the metal surface and the plastic surface.