Abstract: A method for laser beam joining of at least two joining partners, in which a laser beam device produces a continuous weld seam along an application path with a preferably very long path length. Irregularities in the weld seam due to high process speeds are avoided as follows: in a first process step, at least two weld seam sections spaced apart from one another in the longitudinal direction of the path, are respectively produced with an intermediate weld seam interruption. In a second process step the laser beam device produces in each weld seam interruption a further weld seam section, such that all weld seam sections merge together without interruptions, in particular with formation of the continuous weld seam.

Abstract: A device operates an electrical energy store for supplying components of an electrically operable motor vehicle, wherein operating limits are defined in each case for one or more characteristic variables of the energy store. A control unit prevents the operating limits from being exceeded during normal operation of the energy store. The device has an interface for receiving a user-side request message from an apparatus, the request message including change information about an intended shift in the operating limit of at least one of the characteristic variables.

Abstract: Techniques and solutions are provided for generating allocation tasks for a plurality of tasks requesting one or more instances of an element, the element being associated with a plurality of allocation units. At least one allocation unit is an aggregation unit that comprises multiple instances of the element. Certain disclosed techniques allow for a combination of types of allocation tasks, such as an allocation task that directly allocates one or more instances of an allocation unit to a task, or an allocation task that has subtasks of withdrawing one or more instances of an aggregation unit and then distributing element instances of the aggregation unit or units among a plurality of tasks. Another technique determines whether a multiple of a given aggregation unit can exactly satisfy multiple tasks of the plurality of tasks. Another aspect provides for splitting tasks into groups to allow for more efficient allocation.

Abstract: A method for determining an operating temperature of a battery cell in which (i) a value of a measure variable for determining an external temperature of the battery cell is detected, (ii) an internal temperature of the battery cell is determined by detecting an electrical impedance of the battery cell, and (iii) a value of the operating temperature of the battery cell is determined from the external and/or the internal temperature. The internal temperature of the battery cell in a first operating state of the battery cell is determined more frequently when the value of the determined external temperature, the internal temperature and/or the operating temperature lies within a predefined first safe range, and is determined less frequently when the value of the determined external temperature, the internal temperature and/or the operating temperature lies outside the predefined first safe range.

Abstract: A method for monitoring a battery system having a battery module that has a plurality of battery cells. A battery management system is not active in a sleep mode of the battery system. The method includes monitoring a measured value in the sleep mode by a sensor arrangement and comparing the measured value with default values by the sensor arrangement. A wake-up signal is triggered when the measured value deviates from the default values which ends the sleep mode, activates the battery management system, and starts an emergency mode. The method also includes alternatively triggering the wake-up signal when a predefined wake-up time is passed and determining and predefining a new wake-up time and new default values before the battery management system switches into the sleep mode again.

Abstract: The present invention relates to a kit for improving food shelf life comprising a sheet-like element component and an alkaline component. The sheet-like element component comprises a particulate filler comprising surface-reacted calcium carbonate, a binder and an oxygen scavenger. The oxygen scavenger is a compound comprising at least two phenolic hydroxyl groups, which can be deprotonated by the alkaline component, thus activating the oxygen scavenger. Further aspects of the present invention relate to an activated sheet-like element formed from the inventive kit, a process for the manufacture of a kit for improving shelf life, a process for the manufacture of a sheet-like element component, a process for activating the sheet-like element component, a supply device comprising the activated sheet-like element, a food packaging comprising the activated sheet-like element and the use of the kit or the activated sheet-like element in a food packaging and for prolonging food shelf life.

Abstract: A metering device for granular material, such as seed or fertilizer, is arranged to deliver the granular material in adjustable quantities, where the metering device includes a metering housing, a drivable metering wheel arranged in the metering housing, and a movable shut-off valve, where the metering housing includes a metering cover that can be moved to different positions and a lock that is associated with the metering cover. The position of the shut-off valve can prevent the lock from being actuated so that the metering cover cannot be opened.

Abstract: A sanitary fitting (1) that contains a fitting body (2), a first spray plate (3), a second spray plate (4), and a two-way valve (5), which can be used to selectively route a liquid to the first spray plate (3) or to the second spray plate (4), wherein the two-way valve (5) is arranged in the fitting body (2) and having a valve body (6), which is mounted rotatably about an axis of rotation (11) in a valve housing (25) of the two-way valve (5) between a first valve seat (7) of a first outlet (8) of the two-way valve (5) and a second valve seat (9) of a second outlet (10) of the two-way valve (5).

Abstract: Disclosed is a battery cell including an electrode, a housing, a cell interior inside the housing, a temperature sensor, and a heat-conducting part which differs from the electrode, is entirely or partially disposed inside the housing of the battery cell, and is thermally connected to the temperature sensor.

Abstract: A method for determining the parameters of an equivalent circuit for representation of the impedance of a lithium ion cell is provided. The equivalent circuit includes at least one RC element having an ohmic resistor R1, a capacitor C1, and a series resistor Rs. The series resistor Rs is determined by an impedance measurement.

Abstract: A calibration method includes (a) connecting a impedance measuring device to an impedance standard which has at least two excitation terminals for feeding an excitation signal and two measuring terminals for determining a measurement signal, and which has a fixed or adjustable impedance which corresponds to the impedance target; (b) applying a voltage signal to the excitation terminals and measuring the current flowing through the impedance standard due to the voltage signal at the measuring terminals; or supplying a current signal to the excitation terminals and measuring the dropping voltage at the measuring terminals; and (c) calibrating the impedance measuring device against the impedance standard to the impedance target. The geometrical arrangement of terminals of the impedance standard corresponds to the geometrical arrangement of the terminals of the cell of which the impedance is to be measured.

Abstract: A gas measuring device (100) and a gas measuring process measure a concentration of a combustible target gas (CH4). A detector (10), having a detector heating segment (20), oxidizes combustible target gas. A compensator (11) having a compensator heating segment (30) oxidizes less or no target gas. A temperature sensor (14) measures the ambient temperature. A first detection variable (?U_B) depends on the detector temperature, a second detection variable (U11) depends on the compensator temperature. An evaluation unit (9) applies a first and a second functional relationship in order to determine, depending on the two detection variables (?U_B, U11), both the target gas concentration and a further environmental condition, particularly the ambient humidity. The second functional relationship, a dependence between the further environmental condition on the one hand and the detection variables and the ambient temperature on the other hand, is valid if no target gas is present.

Abstract: A method for producing a bipolar plate strand comprises: providing of the unipolar plate strands; moving of the unipolar plate strands in the direction of a roll gap of a roll pair provided with roll structures of a rolling device; sending of a laser beam of a laser device onto a rotating mirrored polygon wheel, so that the laser beam is directed at a plurality of individual positions of a surface of one or both of the unipolar plate strands and the individual positions are thus heated to a joining temperature immediately before or upon entry of the unipolar plate strands in the roll gap; and joining of the unipolar plate strands at least at one of the individual positions of the surface to form a bipolar plate strand upon transporting of the unipolar plate strands through the roll gap under the action of pressure. A method for production of a bipolar plate as well as a device to implement the method are also provided.

Abstract: A resource management system (39) manages a supply of resource material and/or resource items to a plurality of at least two additive manufacturing machines (3) for additive manufacturing. The resource management system (39) includes a control unit (41) that is configured to receive a signal indicative of a demand for resource material and/or resource items of any of the additive manufacturing machines (3). The control unit (41) is configured to schedule the supply of demanded resource material and/or resource items according to a predetermined prioritization scheme for resolving demand conflicts.

Abstract: Disclosed is a system (100) and method for tracking an inventory item (102, 202, 304) within a facility. The system comprises a unique identification tag (208, 306) for the inventory item and a plurality of cameras (104, 106, 204, 206) positioned within the facility. The unique identification tag is visible in images (302, 308, 312) captured by at least one of the plurality of cameras. An image processor (108) configured to receive at least one image of the inventory item from at least one of the plurality of cameras. The image processor identifies one or more parameters such as a type, a class, a state associated with the inventory item from the at least one image. The image processor further identifies the unique identification tag from the at least one image and identify the inventory item associated with it. The image processor employs at least one of: computer vision, neural networks, image processing algorithms for processing of the image.

Abstract: Disclosed is a system arranged to track a surgical kit comprising a container and one or more surgical tools. The system comprises a unique identification tag for container and a unique identification tag for one or more surgical tools; and an image processor configured to receive at least one image of unique identification tag for container and/or unique identification tag for one or more surgical tools captured by at least one imaging arrangement and process at least one image to: identify unique identification tag for container and/or one or more surgical tools, determine identity of container and/or one or more surgical tools based on one or more parameters identified from unique identification tag, and track a location of container and/or one or more surgical tools, based on a location of at least one imaging arrangement that captured the image of container and/or one or more surgical tools.

Abstract: Disclosed is a system and a method for managing traffic in an environment comprising at least one operational vehicle and at least one autonomous vehicle therein.

Abstract: A high-voltage battery for a motor vehicle includes a battery housing for receiving a plurality of battery modules in an interior space of the battery housing, and a detection device for detecting damage to the battery housing. The detection device includes at least one pressure sensor arranged in the interior space of the battery housing, which is configured to detect a pressure signal in the interior space of the battery housing, and an evaluation unit, which is configured to identify the damage to the battery housing based on the pressure signal detected by the pressure sensor. A method and a motor vehicle using the high-voltage battery are also provided.

Abstract: A hydromount for mounting a motor vehicle unit is disclosed. The hydromount includes a supporting spring supporting a mount core and surrounding a working chamber, and a compensation chamber separated from the working chamber by a dividing wall and delimited by a compensation diaphragm. In embodiments, the compensation chamber and the working chamber are filled with a liquid and are connected by a damping duct incorporated into the dividing wall. In an embodiment, the dividing wall has two dividing plates between which a diaphragm is accommodated in a manner capable of oscillating. In an embodiment, the diaphragm and the dividing wall delimit an air chamber connected to the environment via an opening in the dividing wall, and the opening can be unblocked and closed by a switchable non-return device having a pressure-actuatable non-return valve with an opening pressure set to or having an oscillation amplitude of the diaphragm.

Abstract: An optical component comprises a metasurface comprising nanoscale elements. The metasurface is configured to receive incident light and to generate optical outputs. The geometries and/or orientations of the nanoscale elements provide a first optical output upon receiving a polarized incident light with a first polarization, and provide a second optical output upon receiving a polarized incident light with a second polarization that is different from the first polarization.