Abstract: A fuse circuit assembly has a first supply path and a second supply path. The first supply path includes a first supply-connection node, a first load-connection node for connecting a safety-relevant load, a first fuse node, a first electrical fuse and a second electrical fuse. The first electrical fuse is arranged between the first supply-connection node and the first fuse node. The second electrical fuse is arranged between the first fuse node and the first load-connection node. The second supply path includes a second supply-connection node, a second load-connection node for connecting the safety-relevant load, and a third electrical fuse which is arranged in a third connection between the second supply-connection node and the second load-connection node. The first fuse node is connected to the second supply-connection node via a fourth electrical fuse.

Abstract: A battery connection circuit is equipped with a first and a second battery terminal, a first and a second load terminal, a configuration circuit and with a DC-DC converter. The DC-DC converter has a first side which is connected to the first battery terminal and a second side which is connected to the second battery terminal. The DC-DC converter is set up to perform DC-DC conversion between the sides. The first load terminal is connected to the first side. The second load terminal is connected to the second side. The configuration circuit is connected to the battery terminals and set up to selectively provide a series state or a parallel state. The configuration circuit selectively connects the battery terminals to one another: in series in the series state, or in parallel in the parallel state. Furthermore, a vehicle on-board electrical system having such a battery connection circuit is described.

Abstract: The invention relates to a spring element for vibration damping and/or suspension of a rail vehicle, comprising at least one elastic damping body and at least one fire-resistant cover layer arranged on the damping body, the cover layer having at least one compensation zone, wherein the compensation zone is compressed in the loaded state of the spring element such that wrinkling of the cover layer is prevented, wherein the cover layer and the damping body are inseparably connected to form a composite element. The invention further relates to a cover layer and the use of a spring element or a cover layer.

Abstract: The disclosure relates to a method and a device for evaluating a signal. The signal is provided from a signal source via a signal conditioning unit to a microcontroller for signal evaluation. The method includes detecting the signal from the signal source and transmitting the signal to the signal conditioning unit, which has an anti-aliasing filter. The method also includes filtering the signal by the anti-aliasing filter, which is set on the basis of the signal to be detected and providing the filtered signal to the microcontroller. The method also includes processing and evaluating the filtered signal in the microcontroller.

Abstract: The invention relates to a cell culture apparatus for cultivating cell spheroids, comprising at least one compartment having n compartment walls which define a compartment base area and a volume VK above the compartment base area and a multiplicity of microwells having p top edges and a volume VM, wherein the microwells are arranged in the compartment base area such that the compartment base area outside the microwells merely has inclined surfaces, the number of microwells is chosen such that the entire compartment base area is covered with microwells, all the microwells have the same volume VM and the microwells have the shape of a pyramid or a cone having a rounded tip for accommodation of cells and additionally rounded edges between the tip and the base of the pyramid or the cone.

Abstract: A delivery unit for dispensing adhesive having a housing, a melting apparatus arranged within the housing for melting the adhesive, a distributing device for dispensing molten adhesive in at least one line connectable to the distributing device, and a pump for conveying the molten adhesive through the distributing device, wherein the housing has a plurality of outer side faces, two of the outer side faces are of a flat configuration and arranged perpendicular to a support plane of the delivery unit on a base and substantially at a right angle to each other, and wherein the distributing device, in a region in which the line is connectable to a connector of the distributing device, has a boundary surface of a flat configuration. The two outer side faces are arranged at a distance apart with the boundary surface therebetween forming an obtuse angle with each of the two outer side faces.

Abstract: The invention relates to a spring element for vibration damping and/or suspension of a rail vehicle, comprising at least one elastic damping body and at least one fire-resistant cover layer arranged on the damping body, the cover layer having at least one compensation zone, wherein the compensation zone is compressed in the loaded state of the spring element such that wrinkling of the cover layer is prevented, wherein the cover layer and the damping body are inseparably connected to form a composite element. The invention further relates to a cover layer and the use of a spring element or a cover layer.

Abstract: A delivery unit for dispensing adhesive having a housing, a melting apparatus arranged within the housing for melting the adhesive, a distributing device for dispensing molten adhesive in at least one line connectable to the distributing device, and a pump for conveying the molten adhesive through the distributing device, wherein the housing has a plurality of outer side faces, two of the outer side faces are of a flat configuration and arranged perpendicular to a support plane of the delivery unit on a base and substantially at a right angle to each other, and wherein the distributing device, in a region in which the line is connectable to a connector of the distributing device, has a boundary surface of a flat configuration. The two outer side faces are arranged at a distance apart with the boundary surface therebetween forming an obtuse angle with each of the two outer side faces.

Abstract: A collector for a projection exposure apparatus for microlithography comprises a plurality of reflective sections which are embodied and arranged in such a way that they can be impinged upon during the focusing of radiation from a first focus into a second focus with angles of impingement in a predefined angular spectrum.

Abstract: An illumination optical unit for projection lithography has a first polarization mirror device to reflect and polarize of illumination light. A second mirror device, which is disposed downstream of the polarization mirror device reflects an illumination light beam. At least one drive device is operatively connected to at least one of the two mirror devices. The two mirror devices are displaceable relative to one another via the drive device between a first relative position, which leads to a first beam geometry of the illumination light beam after reflection at the second mirror device, and a second relative position, which leads to a second beam geometry of the illumination light beam after reflection at the second mirror device, which is different from the first beam geometry. This results in a flexible predefinition of different illumination geometries, in particular of different illumination geometries with rotationally symmetrical illumination.

Abstract: The disclosure relates to optical systems of a microlithographic projection exposure apparatus, and to a microlithographic exposure method. According to an aspect of the disclosure, an optical system has a light source, a ray-splitting optical element, which splits a light ray incident on this element when the projection exposure apparatus is in operation into a first partial ray and a second partial ray, with the first and the second partial ray having mutually orthogonal polarization directions, and at least one ray-deflecting optical element for generating a desired polarized illumination setting from the first partial ray and the second partial ray, wherein the ray-splitting optical element is arranged such that light incident on this ray-splitting optical element when the projection exposure apparatus is in operation has a degree of polarization of less than one.

Abstract: An apparatus for dispensing flowable substances, having a nozzle having an exit opening for dispensing the substances from the nozzle, and a closure part movable by a control element, disposed outside of the nozzle, and configured to release the exit opening and close the exit opening, in the region of a closure part surface that faces the nozzle end. The closure part surface is delimited, in the movement direction of the closure part from the open position to the closed position, by a leading edge, in the leading direction. The closure part surface is disposed next to the nozzle and at a level upstream from the exit opening, with reference to the flow direction of the substances through the nozzle, in the open position. The closure part can be moved from the open position to the closed position by the control element, such that the leading edge of the closure part surface is moved past the free nozzle end.

Abstract: A valve device including a valve housing which bounds a valve chamber in which a valve member is accommodated for movement between a blocking position and a release position in order to influence a free flow cross-section for a fluid in a flow path between an inlet passage terminating into the valve chamber and an outlet passage leading from the valve chamber, further including a first absolute pressure sensor for providing a first pressure signal as a function of an operating pressure in the flow path, and further including an evaluation circuit for processing the first pressure signal. It is provided that a second absolute pressure sensor is located outside the flow path, which is designed to provide a second pressure signal as a function of an operating pressure outside the flow path and which is connected to the evaluation circuit for enabling a differential pressure between the first and second pressure signals to be determined.

Abstract: An apparatus for dispensing flowable substances, having a nozzle having an exit opening for dispensing the substances from the nozzle in the region of a free nozzle end, and a closure part that can be moved by means of a control element, disposed outside of the nozzle. The closure part releases the exit opening in an open position and closes the exit opening in a closed position. The control element has a frame, a transfer medium that brings about shape fit and has wheels, the transfer medium generates angle synchronicity of wheels mounted in the frame so as to pivot, a drive for the transfer medium, for pivoting the respective wheel in two opposite pivot directions, a bearing element for the closure part, mounted in wheels so as to pivot. The bearing element is mounted about pivot axles in the wheels, so as to pivot. The pivot axles are disposed in the frame parallel to the pivot axles of these wheels. The closure part is mounted in the bearing element.