Abstract: A method for operating a railway system. Cryptographic data which includes at least one key and/or at least one digital certificate is stored in a storage device of a vehicle of the railway system. The vehicle transmits the cryptographic data to at least one track-side device of the railway system when the vehicle is in communication range of the least one track-side device as part of the train travel. There is also described a corresponding rail vehicle of a railway system.

Abstract: The present invention relates to a formulation comprising a polyether siloxane, which is characterized in that a polyether that is terminated with an ester group and that is different from the polyether siloxane is present in the formulation in an amount of from 0.5 to 10% by weight based on the complete formulation, to a process for the production of a defoamed composition, wherein the inventive formulation is added to the composition to be defoamed, and to a composition comprising a formulation according to the invention, wherein the composition is a coating agent, a paint or a varnish.

Abstract: An apparatus servs for detecting metal objects in and on articles moving relative to the apparatus. The apparatus comprises a transmitter device including a transmitter coil and configured for generating a magnetic alternating field at multiple operating frequencies using the transmitter coil, a receiver device including at least one receiver coil and configured for detecting the magnetic alternating field influenced by the moving articles and for outputting a receiver signal as a function of the detected magnetic alternating field, a filter device configured for filtering multiple partial signals out of the receiver signal, each of the partial signals being associated with one of the operating frequencies, and an analysis device configured for analyzing the partial signals. The filter device is configured for band-elimination filtering each of the partial signals which is associated with one of the operating frequencies with regard to all others of the operating frequencies.

Abstract: The invention relates to a method for manufacturing of a sinterable green body from sodium-?-aluminate- and/or precursor-particles bonded via binders by means of slip casting, wherein a castable slip containing the particles as well as dispersants and binders is introduced into a casting mold and, after solidification, is demolded as a green body.

Abstract: An adjusting device is provided for positioning an object. The adjusting device includes a base and a supply line. The base is configured to move an object that is connectable to the base in the connected state along a path of motion in a position-controlled manner. The supply line supplies the energy and/or signal transmission to and/or from the base. The supply line is coupled to the base in a reversibly detachable manner.

Abstract: A guide bar for a chainsaw has a middle section which forms a groove base of a guide groove. The middle section has an edge layer which includes at least one hardened region extending from a first end having a first edge layer depth to a second end having a second edge layer depth. The first edge layer depth at the first end is less than the second edge layer depth at the second end. The second edge layer depth at the second end is greater than 1 mm. The first edge layer depth at the first end of the hardened region is at most 3 mm.

Abstract: A cutting chain for cutting mineral or metallic materials has central drive links with a projection. Pairs of two side members are positioned laterally at the central drive links. The central drive links and the side member pairs are pivotably connected to each other. At least two cutting members are arranged sequentially in running direction of the cutting chain and each have one pair of side members and an abrasive cutting element connecting the two side members to each other. A drive link is arranged between the two cutting members and the projection of the drive link projects into a space between the cutting elements. The cutting chain has a cutout arranged such that a maximum sag of the cutting chain, at which the projection of the drive link comes into contact with one of the cutting elements, is enlarged compared to the same cutting chain without cutout.

Abstract: The invention relates to a method for monitoring a status of at least one component of a mechanical plant, in particular of a wind turbine, that comprises the following steps: (i) receiving an evaluation signal that is formed based on values of a measurement quantity recorded in the plant, (ii) determining at least one parameter data set on the basis of the evaluation signal as a function of a signal that is representative for a stress of the plant and/or based on a spectral analysis of the evaluation signal, (iii) evaluation of an indicator signal as a function of at least one parameter data set and determining the status of the component of the plant as a function of the indicator signal.

Abstract: The invention relates to a method and an arrangement for the continuous production of compressed oxygen from air using mixed conducting ceramic membranes. The aim of the invention is to provide a way of isolating pure oxygen from the air and compressing said oxygen to pressures above the ambient pressure, without using mechanical or electromechanical compression of air or oxygen. To achieve this aim, according to the invention water in various aggregate states is conducted in a circuit and the configuration of the equipment is designed such that the desired high oxygen pressure is produced in a separate area from the membrane module and the oxygen produced is prevented from mixing with the freshly produced water vapour.

Abstract: A guide bar for a saw chain includes an elongate, flat base body made of a basic material. The base body extends along a longitudinal center axis and, in order to guide a saw chain, has a running surface formed on an outer periphery thereof and a guide groove formed in the outer periphery of the base body. The guide groove has a groove base. A direction-reversing section for the saw chain is provided at one end of the base body. The direction-reversing section includes at least one add-on component having a running surface made of more wear-resistant material than the basic material of the base body. The add-on component is secured to the base body of the guide bar by at least one weld seam. The weld seam extends between the add-on component and the base body and is located spatially beneath the groove base.

Abstract: The invention relates to a method for monitoring a status of at least one component of a mechanical plant, in particular of a wind turbine, that comprises the following steps: (i) receiving an evaluation signal that is formed based on values of a measurement quantity recorded in the plant, (ii) determining at least one parameter data set on the basis of the evaluation signal as a function of a signal that is representative for a stress of the plant and/or based on a spectral analysis of the evaluation signal, (iii) evaluation of an indicator signal as a function of at least one parameter data set and determining the status of the component of the plant as a function of the indicator signal.

Abstract: The invention relates to a method and an arrangement for the continuous production of compressed oxygen from air using mixed conducting ceramic membranes. The aim of the invention is to provide a way of isolating pure oxygen from the air and compressing said oxygen to pressures above the ambient pressure, without using mechanical or electromechanical compression of air or oxygen. To achieve this aim, according to the invention water in various aggregate states is conducted in a circuit and the configuration of the equipment is designed such that the desired high oxygen pressure is produced in a separate area from the membrane module and the oxygen produced is prevented from mixing with the freshly produced water vapour.

Abstract: A chain for a work implement has lateral connecting members connected to central driving members via studs. The stud has two lateral portions spaced apart from one another by a collar. A driving member is mounted pivotably on the collar. At the collar the stud has a surface layer harder than the base material. For a high chain service life, the stud has a diffusion layer above a surface layer above the base material. To produce the stud, the stud is provided with a diffusion layer at least at the collar, and a surface region of the collar is hardened, such that a surface layer is formed between the diffusion layer and the base material of the stud. For a method for producing a driving member, the driving member is provided with a diffusion layer at least at a circumferential surface of a hole and the driving member is hardened.

Abstract: A guide bar for a chain saw has an elongate main body of steel. The main body has flat sides and upper and lower peripheries defining a guide groove for a saw chain. An elongate window is formed in the main body between the peripheries and is filled with an insert made of a fiber composite material made up of resin and fibers. The fibers are in the direction of the longitudinal axis of the main body. The insert includes a plurality of fiber layers that are bonded with resin. A central layer is formed from a fiber layer and the fibers thereof are at an angle to the longitudinal axis. Two fiber layers having fibers oriented in the direction of the longitudinal axis of the main body are on both sides of the central layer. The inner fiber layers are covered outwardly by a woven fabric.

Abstract: A chain for a work implement has lateral connecting members connected to central driving members via studs. The stud has two lateral portions spaced apart from one another by a collar. A driving member is mounted pivotably on the collar. At the collar the stud has a surface layer harder than the base material. For a high chain service life, the stud has a diffusion layer above a surface layer above the base material. To produce the stud, the stud is provided with a diffusion layer at least at the collar, and a surface region of the collar is hardened, such that a surface layer is formed between the diffusion layer and the base material of the stud. For a method for producing a driving member, the driving member is provided with a diffusion layer at least at a circumferential surface of a hole and the driving member is hardened.

Abstract: A method for detecting barge-in in a speech dialog system comprising determining whether a speech prompt is output by the speech dialog system, and detecting whether speech activity is present in an input signal based on a time-varying sensitivity threshold of a speech activity detector and/or based on speaker information, where the sensitivity threshold is increased if output of a speech prompt is determined and decreased if no output of a speech prompt is determined. If speech activity is detected in the input signal, the speech prompt may be interrupted or faded out. A speech dialog system configured to detect barge-in is also disclosed.

Abstract: A guide bar for a saw chain includes an elongate, flat base body made of a basic material. The base body extends along a longitudinal center axis and, in order to guide a saw chain, has a running surface formed on an outer periphery thereof and a guide groove formed in the outer periphery of the base body. The guide groove has a groove base. A direction-reversing section for the saw chain is provided at one end of the base body. The direction-reversing section includes at least one add-on component having a running surface made of more wear-resistant material than the basic material of the base body. The add-on component is secured to the base body of the guide bar by at least one weld seam. The weld seam extends between the add-on component and the base body and is located spatially beneath the groove base.

Abstract: A cutting chain for a hand-operated implement for cutting metal and mineral materials such as a stone cutter has central connecting links which are connected to one another by lateral connecting links. The central connecting links comprise first central connecting links which each have a drive tooth. The cutting chain has two central connecting links with drive teeth shaped differently to the drive teeth on the first central connecting links; or located a different distance from the leading drive teeth; or having no drive teeth. A hand-operated implement for cutting mineral materials has a drive motor which drives the cutting chain around a guide bar by a drive sprocket. The cutting chain is guided round part of the circumference of the drive sprocket and round a nose sprocket on the guide bar. The drive sprocket or nose sprocket have different first and second areas matched to the cutting chain.

Abstract: A guide bar for a chain saw has an elongate main body of steel. The main body has flat sides and upper and lower peripheries defining a guide groove for a saw chain. An elongate window is formed in the main body between the peripheries and is filled with an insert made of a fiber composite material made up of resin and fibers. The fibers are in the direction of the longitudinal axis of the main body. The insert includes a plurality of fiber layers that are bonded with resin. A central layer is formed from a fiber layer and the fibers thereof are at an angle to the longitudinal axis. Two fiber layers having fibers oriented in the direction of the longitudinal axis of the main body are on both sides of the central layer. The inner fiber layers are covered outwardly by a woven fabric.