Abstract: A power tool switching device, in particular for portable power tools, includes at least one switching unit having at least one movably mounted control element configured to actuate a mechanical, electrical and/or electronic switching element. The power tool switching device further includes at least one guide unit, which, upon an actuation of the control element along a direction of main extent of the control element, is configured to convert a movement of the control element along the direction of main extent at least into a movement of the control element running transversely in relation to the direction of main extent.

Abstract: A gray cast iron brake disk for a motor vehicle has a wear-reducing surface coating applied thermally, for example, by flame spraying. The brake disk also includes an intermediate layer of, for example, nickel. Due to its resilience, the intermediate layer reduces mechanical stress between the surface coating and the brake disk.

Abstract: A brake disk has a wear-reducing surface coating including a wear indicator and a friction ring. The wear indicator is a raised portion on the friction ring and is underneath the surface coating. The raised portion runs around the friction ring in the form of a wavy line, for example. The raised portion has a height which corresponds to a wear limit.

Abstract: A method for operating a direct wiper drive having a motor, in particular for a windshield wiper, is described. The method comprises making available a limiting load torque for normal operation, determining at least a first characteristic variable for the plausibility of an exceptional case, determining at least a second characteristic variable for the reliability of an exceptional case, and deactivating the limiting load torque as a function of the first characteristic variable and the second characteristic variable.

Abstract: A method for producing silicon microneedle arrays with drilled holes includes producing a silicon microneedle array. For each microneedle in a plurality of microneedles in the microneedle array, a laser is positioned relative to a microneedle and a drilled hole is drilled into the microneedle array by laser drilling. The drilled holes are drilled in microneedles, in flanks of the microneedles or alongside microneedles. A microneedle array includes a substrate composed of a micromechanical semiconductor material. The microneedle array has microneedles that project from the substrate and has drilled holes. The microneedles are composed of a porous micromechanical semiconductor material.

Abstract: A storage-battery-operated screwing tool is controlled by means of an external USB/Bluetooth keyboard.

Abstract: An energy storage device. An energy supply branch, with a plurality of energy storage modules is connected in series via first module connections along a first energy supply line and via second module connections along a second energy supply line. The energy storage modules include an energy storage cell module having an energy storage cell, a first coupling device having first coupling elements, configured to switch or bypass the energy storage cell module selectively between the first module connections, and a second coupling device having second coupling elements, which are designed to switch or bypass the energy storage cell module selectively between the second module connections. The energy storage device also includes an output connection coupled to an output of the first energy supply line; and two additional connections coupled to the outputs of the second energy supply line.

Abstract: A method for operating a multi-fuel internal combustion engine in which a plurality of control units are used. The system is easily scalable and adaptable to internal combustion engines with different numbers of cylinders, wherein the number of cylinders is not limited by the control unit structure.

Abstract: A measuring device includes a plurality of measuring modules and a control module. The plurality of measuring modules is configured to measure vital parameters of a patient, with at least two measuring modules of the plurality of measuring modules being configured to measure different vital parameters. The control module is configured to evaluate the measured vital parameters and/or to carry out calculations based on the measured vital parameters.

Abstract: An electrical apparatus (1) comprising a base (2) for being attached to a substrate (4), a functional head (3) which has at least one electrical or electronic functional device (10), wherein the functional head (3) is attached to the base (2) with a bayonet connection (6), wherein the base (2) has a first contact (14) and the functional head (3) has a second contact (30), which are contact-connected to one another, wherein the bayonet connection (6) can be formed by a relative movement of the functional head (3) in relation to the base (2) in an axial direction (A), and a subsequent relative rotation, and the first contact (14) and second contact (30) can be contact-connected to one another by the relative rotation.

Abstract: A surveillance camera having at least one optical sensor for picking up an optical signal from the environment of the surveillance camera, wherein the optical signal comprises at least one coded data word. The surveillance camera has a configuration device for configuring the surveillance camera and a decoder device for decoding the coded data word. The configuration device is designed for utilizing the decoded data word for configuring the surveillance camera.

Abstract: A method and apparatus are provided for detecting contaminants, such as ethylene glycol and diethylene glycol, in various materials, including household products, and medicines. The contaminants can be detected using enzyme assays that produce measurable changes in light absorption and/or light fluorescence.

Abstract: A method for the control of a first current in a first direct voltage network which is connected to a direct voltage converter, wherein energy is transmitted between the first and a second direct voltage network via a transformation unit of the direct voltage converter, wherein a current control is provided for the control of a second current in the second direct voltage network. A second current setpoint is determined from a first current setpoint of the first direct voltage network based on a transfer function of the transformation unit, which second current setpoint is fed to the current control and therefore, due to the transformation ratio of the transformation unit, a first actual current of the current-control-free direct voltage network is controlled.

Abstract: An electrohydraulic control device and a method for actuating such an electrohydraulic control device include a hydraulic consumer having an actuator element and a pressure medium source that is quantity-adjustable. The speed of the actuator element is controlled by the pressure medium source and the position of the actuator is controlled by digital hydraulics.

Abstract: A modular surveillance camera kit includes a group of camera heads each having a respective set of performance characteristics, a group of system controllers each having a respective set of performance characteristics, and a group of communications modules each having a respective set of performance characteristics. Each of the communications modules is configured to be coupled to a system interface. A surveillance camera system is assembled in a selected one of a plurality of possible combinations by selecting one of the group of camera heads, one of the group of system controllers and one of the group of communications modules such that the selected system controller electrically and mechanically interconnects the selected camera head and the selected communications module.

Abstract: A method of identifying a living being includes using a camera to capture a blurred visual image of an iris of the living being. The blurred visual image is digitally unblurred based on a distribution of eye image gradients in an empirically-collected sample of eye images and characteristics of pupil region. The unblurred image is processed to determine an identity of the living being.

Abstract: An accessory attachment system for a power tool having an elongated housing with a nose portion, an output shaft to which a cutting blade that oscillates through a small angle is attached, the attachment comprising, an accessory interface removably mounted to the nose portion of the housing and a depth guide attachment rotatably mounted to the accessory interface, the depth guide attachment further comprising a relatively thin body portion having a generally circular first opening with a center axis generally parallel to the output shaft, the body portion fitting on the accessory interface and being rotatable thereon and having a second circular opening transverse to the first opening center axis, a depth guide member adjustably mounted on the body portion and having an offset outer end portion, and a locking member configured to secure the depth guide member in a desired position.

Abstract: In one embodiment, a flow battery system includes a reactor, a first pump operably connected to a first electrolyte tank and to the reactor, a second pump operably connected to a second electrolyte tank and to the reactor, a memory including program instructions stored therein, and a controller operably connected to the first pump, the second pump, and the memory and configured to execute the program instructions to determine a first flow rate through the first pump based upon first pump operating parameters including a differential pressure across the first pump, control the first pump based upon the first flow rate, determine a second flow rate through the second pump based upon second pump operating parameters including a differential pressure across the second pump, control the second pump based upon the second flow rate.

Abstract: A manual distance measuring apparatus includes at least one computing unit, an image acquisition means and a laser measuring device, which determines a distance of a measurement point on a measurement object in a measurement direction during a measuring process. The computing unit is configured to control, at least by open-loop control, the measurement direction depending at least on an output characteristic variable of the image acquisition means.

Abstract: A method for operating a machine located in choppy waters, in particular a wave energy converter, for converting energy from a wave movement of a fluid into another form of energy includes determining measurement variables at a first, relatively early time, and calculating a variable characterizing a wave movement expected at a second, later time on the basis of the determined measurement variables.