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: A stamped or fine-blanked, workpiece is inserted in an embossing device, and the burr created on the workpiece during stamping or fine blanking is rounded by way of a die of the embossing device and the height of the rollover created during stamping or fine blanking is decreased using the same stroke of the embossing device by way of which the burr rounding is carried out.

Abstract: A gas turbine and method are disclosed by which the gas turbine can be safely operated at nominal speed with reduced margin to a surge limit of a compressor. The gas turbine, via a directly driven generator which generates alternating current with an operating frequency and which is connected in a frequency-coupled manner to an electricity grid, can deliver electric power to this grid. In the case of an underfrequency event the compressor of the gas turbine is unloaded by controlled, fast closing of the variable compressor guide vanes (VGV) and as a result maintains a sufficient margin to the surge limit of the compressor.

Abstract: A stamped or fine-blanked, workpiece is inserted in an embossing device, and the burr created on the workpiece during stamping or fine blanking is rounded by way of a die of the embossing device and the height of the rollover created during stamping or fine blanking is decreased using the same stroke of the embossing device by way of which the burr rounding is carried out.

Abstract: A method is provided for operating a gas turbine plant, in which compressed air is extracted from a compressor and for cooling is directed in an internal cooling passage through thermally loaded components to the combustion chamber and/or to the turbine, then re-cooled, and added to the compressor main flow in the compressor. At least a portion of the recirculated air is supersaturated, or partially saturated, with drops of water during or before recirculation into the compressor and a cooling mist is created. A gas turbine plant is provided with a closed cooling circuit which, for implementing the method, includes an injection arrangement for introducing water into the recirculated cooling air.

Abstract: A method for controlling a gas turbine, including during transient operating states, and such a gas turbine are provided. The gas turbine includes a compressor for compressing inducted combustion air, a combustion chamber for generating hot gas by combusting a fuel with the aid of the compressed combustion air, and a multistage turbine for expanding the generated hot gas and performing work. The controlling of the gas turbine is carried out in accordance with the hot gas temperature which is derived from a plurality of other measured operating variables of the gas turbine. A reliable controlling of the gas turbine is achieved, even during rapid changes, by pressure measurements being gathered exclusively at different points of the gas turbine for derivation of the hot gas temperature.

Abstract: A method of manufacturing a battery is provided. A cathode assembly is provided, including a cathode and a cathode tab. The cathode tab is welded to a positive terminal of the battery. The welding is made in a circular movement.

Abstract: Parts with high surface finish are removed from tools of a fine blanking press with accuracy and at high speed. The press has high opening and shutting speeds achieved by a direct drive having high acceleration power, a high turning moment, and small construction dimensions. A cross slide is movable transverse to a working direction of tool parts and is fixed at a frame of the direct drive. The direct drive includes a drive shaft which changes turning direction based on the stroke of a ram that is pivotally connected to the cross slide via an arm, a bracket, and a rapid-action coupling. Rotating motion is converted into a linear motion, which reverses between a rear stop position and a front stop position of the cross slide in a working area.

Abstract: A multi-layer composite precursor is provided comprising a substrate, wherein the substrate comprises a light emitting organic compound, a first surface, and a second surface, wherein the second surface is superimposed by a transparent electrically conducting layer, a liquid phase superimposing at least a part of the first surface comprising a metal-organic compound, wherein the metal-organic compound comprises an organic moiety, wherein the organic moiety comprises a C?O group; and wherein the liquid phase further comprises a first silicon compound, wherein the first silicon compound comprises at least one carbon atom and at least one nitrogen atom.

Abstract: A method is provided for operating a gas turbine plant, in which compressed air is extracted from a compressor and for cooling is directed in an internal cooling passage through thermally loaded components to the combustion chamber and/or to the turbine, then re-cooled, and added to the compressor main flow in the compressor. At least a portion of the recirculated air is supersaturated, or partially saturated, with drops of water during or before recirculation into the compressor and a cooling mist is created. A gas turbine plant is provided with a closed cooling circuit which, for implementing the method, includes an injection arrangement for introducing water into the recirculated cooling air.

Abstract: A method for controlling a gas turbine, including during transient operating states, and such a gas turbine are provided. The gas turbine includes a compressor for compressing inducted combustion air, a combustion chamber for generating hot gas by combusting a fuel with the aid of the compressed combustion air, and a multistage turbine for expanding the generated hot gas and performing work. The controlling of the gais turbine is carried out in accordance with the hot gas temperature which is derived from a plurality of other measured operating variables of the gas turbine. A reliable controlling of the gas turbine is achieved, even during rapid changes, by pressure measurements being gathered exclusively at different points of the gas turbine for derivation of the hot gas temperature.

Abstract: A device for removing precision punching respectively fine blanking parts from a tool of a mechanically or hydraulically driven press is provided. The device includes a linked to the ram (18) of the press (14) tool part (22) and a tool part (15) on the bedplate of the press fixed at the frame of the press, a cross slide (8) movable transverse to the working direction of the tool parts, which is developed movable into the working area between the tool parts when one of the tool parts opens and out of it to remove the parts (21) out of the working area when one of the tool parts closes, wherein the cross slide (8) is connected to a fixed at the frame (1) of the press direct drive (2).

Abstract: A gas turbine and method are disclosed by which the gas turbine can be safely operated at nominal speed with reduced margin to a surge limit of a compressor. The gas turbine, via a directly driven generator which generates alternating current with an operating frequency and which is connected in a frequency-coupled manner to an electricity grid, can deliver electric power to this grid. In the case of an underfrequency event the compressor of the gas turbine is unloaded by controlled, fast closing of the variable compressor guide vanes (VGV) and as a result maintains a sufficient margin to the surge limit of the compressor.

Abstract: The present invention relates to a toothbrush attachment for an electric toothbrush, having a preferably tube-shaped body part on which an electronic module, such as a transponder, is mounted. The invention further relates to a method for producing such a toothbrush attachment and to a toothbrush having such a toothbrush attachment. According to the invention, the at least one electronic component is welded into the toothbrush attachment. According to the invention, the electronic component is encapsulated in an intermediate space between two body parts of the toothbrush attachment and is closed by at least one weld seam bonding the two body parts to each other. This ensures comprehensive protection of the electronic component by the body parts covering it.

Abstract: A method of manufacturing a battery is provided. A cathode assembly is provided, including a cathode and a cathode tab. The cathode tab is welded to a positive terminal of the battery. The areas to be welded are cleaned prior to welding to remove an oxide layer.

Abstract: The invention pertains to a method for locally heating an object with electromagnetic radiation and substantially simultaneously cooling the immediate vicinity of the object region to be heated by a flowing fluid. The inventive method is characterized in that the flowing fluid and the electromagnetic radiation emitted in the toward the region to be heated are guided along paths that are spatially separated from one another.

Abstract: An electric pressing iron in which a plate-shaped soleplate made of an aluminum material with a low silicon content is bonded to the iron body by a temperature-resistant adhesive, wherein the surface of the soleplate is provided with a hard and wear-resistant aluminum oxide coating. Because the soleplate is made of an aluminum material with a low silicon content, anodizing produces an aluminum oxide coating of a particularly uniform coloring, with a temperature-resistant as well as corrosion- and scratch-resistant ironing surface that affords particular economy of manufacture.