Abstract: A particle beam system 1 for cleaning itself comprises an irradiation system to direct electromagnetic radiation onto the surfaces to be cleaned and a supply system 61 to supply a precursor gas to the interior of the vacuum chamber 11 of the particle beam system 1. The precursor gas is activated in a vicinity of the surfaces to be cleaned and is converted into a reaction gas which reacts with the contaminants present on the irradiated surfaces such that said contaminants may be pumped out then.

Abstract: An aperture unit for a particle beam device, in particular an electron beam device, is disclosed. Deposit supporting units are arranged at the aperture unit, with which deposit supporting units contaminations can be bound in such a way that the contaminations can no longer deposit at an aperture opening of the aperture unit. Coatings which can be arranged on the aperture unit make it possible to reduce interactions which cause contaminations to deposit at the aperture opening.

Abstract: A particle beam system 1 for cleaning itself comprises an irradiation system to direct electromagnetic radiation onto the surfaces to be cleaned and a supply system 61 to supply a precursor gas to the interior of the vacuum chamber 11 of the particle beam system 1. The precursor gas is activated in a vicinity of the surfaces to be cleaned and is converted into a reaction gas which reacts with the contaminants present on the irradiated surfaces such that said contaminants may be pumped out then.

Abstract: The invention relates to the fuselage structure of an aircraft with an outer skin (1) which is reinforced by several vertically aligned transverse ribs (7) and several horizontally aligned longitudinal ribs (8) wherein the outer skin (1) has several windows (5) which each comprise a window frame (6). In order to be able to have a free and flexible choice regarding both the size and arrangement of view or access openings in the fuselage shell it is proposed according to the invention that at least one transverse rib (7) runs through the window frame (6) of a window (5) so that the transverse rib ends in an upper section (9) of the window frame (6) and in a lower section (10) of the window frame (6).

Abstract: The object of the invention is to provide an economical vane-type camshaft adjuster system that meets the various requirements of various motors. For this purpose, according to the invention a modular system is provided for the valves of a vane-type camshaft adjuster system. Two different embodiments of valves are proposed. With one embodiment, a valve with mid-locking and without mid-locking may be constructed using the same bush. With the other embodiment, a valve with and without special utilization of the camshaft alternating torques may be constructed using the same bush.

Abstract: The present invention relates to an arresting brake (10) for arresting at least one rotatably mounted component (12, 14) with respect to a housing (32), and is suitable in particular for use in an agricultural or industrial utility vehicle. The arresting brake (10) comprises an electromagnet (26), two armature components (40, 42) and two rotatably mounted components (12, 14). The electromagnet (26) preferably has a core (26) and a coil (30; 50, 52). The armature components (40, 42) are arranged such that they can move in relation to the electromagnet (26) and are rotationally fixed with respect to the housing (32). The electromagnet (26) is arranged between the armature components (40, 42), in order to arrest the rotatably mounted components (12, 14) using the arresting brake (10), in each case an armature component (40, 42) can be engaged with, in each case, one rotatably mounted component (12, 14).

Abstract: A method of transmitting information in a WLAN (Wireless Local Area Network) network and corresponding WLAN communication devices and integrated circuit chips are provided. A correction signal is used for compensating for a dc offset in a data signal containing at least part of the information to be transmitted. The correction signal is varied by making it taking different values. For each of the different values, a strength of an indicator signal indicative of the dc offset is determined. Based upon the determined strength, an optimum value of the correction signal is identified at which the dc offset is minimized. The value of the correction signal is set to the optimum value. Further, a method of transmitting information in a WLAN network is provided, including compensating for a first and second dc offset in a first and second data signal, respectively, using a first and second feedback loop, respectively.

Abstract: The invention concerns a magnetic guiding device (1) having at least one element (2) to be guided magnetically in the axial direction, e.g.

Abstract: The invention concerns an exhaust gas turbocharger (1) having a shaft (2) on which a turbine wheel (4) and a compressor wheel (3) sit and which is guided in radial bearings (5, 6) and in at least one axial bearing (9), which is characterized in that the radial bearings (5, 6) are embodied as passive magnetic bearings having permanent magnets (23 through 31) generating axial magnetic fluxes; and the axial bearing (9) is embodied as an active magnetic bearing having an electromagnet (55), an axial sensor, and a controller for controlling the electrical current impinging upon the electromagnet (55).

Abstract: A method of transmitting information in a WLAN (Wireless Local Area Network) network and corresponding WLAN communication devices and integrated circuit chips are provided. A correction signal is used for compensating for a dc offset in a data signal containing at least part of the information to be transmitted. The correction signal is varied by making it taking different values. For each of the different values, a strength of an indicator signal indicative of the dc offset is determined. Based upon the determined strength, an optimum value of the correction signal is identified at which the dc offset is minimized. The value of the correction signal is set to the optimum value. Further, a method of transmitting information in a WLAN network is provided, including compensating for a first and second dc offset in a first and second data signal, respectively, using a first and second feedback loop, respectively.

Abstract: The invention concerns an exhaust gas turbocharger (1) having a shaft (2) on which a turbine wheel (4) and a compressor wheel (3) sit and which is guided in radial bearings (5, 6) and in at least one axial bearing (9), which is characterized in that the radial bearings (5, 6) are embodied as passive magnetic bearings having permanent magnets (23 through 31) generating axial magnetic fluxes; and the axial bearing (9) is embodied as an active magnetic bearing having an electromagnet (55), an axial sensor, and a controller for controlling the electrical current impinging upon the electromagnet (55).

Abstract: The invention concerns a magnetic guiding device (1) having at least one element (2) to be guided magnetically in the axial direction, e.g.

Abstract: A mobile locking element and a method for unlocking a mobile element via the mobile locking element interacting with the mobile element, the method comprising the following steps:

Abstract: A control lever controls movement of a system to be controlled. The control lever includes a manually operable handgrip attached to a platform. At least six connecting elements are arranged between the platform and a fixed console. Length sensors sense the length of the connecting elements, and/or force sensors sense forces acting on the connecting elements. A control unit evaluates the sensor signals and generates a control signal for controlling movement of the system. The connecting elements are be arranged in the form of a hexapod. The connecting elements may be telescoping members or rigid fixed length members.

Abstract: A check valve is mounted in a valve arrangement having a valve member with an annular channel and at least one bore opening into the annular channel. The check valve has a closing element configured to close the at least one bore in the annular channel. The closing element is formed of a strip shaped as a ring. The strip of the check valve is arranged in the annular channel of the valve member.

Abstract: A control lever controls movement of a system to be controlled. The control lever includes a manually operable handgrip attached to a platform. At least six connecting elements are arranged between the platform and a fixed console. Length sensors sense the length of the connecting elements, and/or force sensors senses forces acting on the connecting elements. A control unit evaluates the sensor signals and generates a control signal for controlling movement of the system. The connecting elements are be arranged in the form of a hexapod. The connecting elements may be telescoping members or rigid fixed length members.

Abstract: In a method for optimizing operation of fossil fuel based power plants, in which the economical effects of the changes of selected operational parameters are determined under consideration of the required economical expenditure, and, based on these additional operational costs, it is determined if, when, and/or what kind of measures should be taken for minimizing the additional operational costs. According to the method, the improvement measures are initiated as a function of the cause of the additional operational costs according to a hierarchal catalog of measures. The measures are: an immediate intervention into the operational course; a later measure implemented during a short shutdown; a later measure implemented during a service shutdown; and/or an operational downtime for a revision.

Abstract: A gas-tight joint for pipe linings and risers inside a bore, consisting of a neck with an outside thread and of a matching collar with an inside thread, with a groove in the vicinity of the thread on the collar and/or of the thread on the neck to accommodate a deformable gasket that, when the joint is screwed tight, is demarcated and deformed by the base of the groove in the neck and/or in the collar and by the contour of the thread on the other component. The cross-sectional area demarcated by the base of the groove in the neck and/or collar and by the contour of the thread on the other component once the two components have been screwed together remains constant along the groove and is equal to or larger than the cross-sectional area of the deformable gasket before the components are screwed together.