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

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 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: 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: 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 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: 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.

Abstract: A power tool includes a housing, a motor having a motor output shaft and located within the housing, the motor being configured to rotate the motor output shaft about a first axis, a drive component having (i) a body attached to the motor output shaft, and (ii) an output drive pin attached to the body, the output drive pin defining a second axis which is offset from the first axis, the body being caused to rotate about the first axis in response to rotation of the motor output shaft about the first axis, and the output drive pin being caused to be eccentrically driven in response to rotation of the body about the first axis, and further the body having a hub and a counterbalance arrangement attached to the hub, the counterbalance arrangement being positioned and configured to offset forces generated by the output drive pin when eccentrically driven, a linkage configured to oscillate in response to the output drive pin being eccentrically driven, and a tool mount configured to oscillate in response to oscillat

Abstract: A spade bit includes a shaft defining an axis about which the spade bit is configured to be rotated. The space bit also includes a blade attached to the shaft and having a first paddle portion and a second paddle portion. In addition, the spade bit includes a tip portion attached to the blade and aligned with the axis. The first paddle portion includes (i) a first leading end portion positioned on a first side of the axis and configured to define a first cutting edge portion, and (ii) a first lateral extension portion configured to define a first sloping surface. The first paddle portion defines a first relief space positioned adjacent to both the first sloping portion and the first leading end portion. The second paddle portion includes (i) a second leading end portion positioned on an opposite second side of the axis and configured to define a second cutting edge portion, and (ii) a second lateral extension portion configured to define a second sloping surface.

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 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 fan arrangement (1), in particular for cooling an engine system, comprising: an impeller (10) having one or more blades (4) which in operation convey a medium in the direction of an axis of rotation of the impeller (10) from an inlet side (E) to an outlet side (A); a housing shroud (6) having a base part (61) which extends in the direction of the axis of rotation and surrounds the impeller (10) completely or partially, wherein, on an end of the base part (61) oriented towards the outlet side (A) of the impeller (10), there is provided a discharge flow element (63) which extends radially outwards from the end of the base part (61).

Abstract: A hydraulic two-way valve includes a pump connection, a tank connection, and first and second working connections. The working connections are connectable to a hydraulic cylinder of an agricultural vehicle lifting mechanism. The pump connection is connectable to a hydraulic pump. In a first position, the pump connection, tank connection, and working connections are shut off. In a second position, the pump connection is connected to the first working connection and the tank connection to the second working connection. In a third position, the pump connection is connected to the second working connection and the tank connection to the first working connection. In a fourth position, the working connections are connected to the tank connection and the pump connection is shut off. In a fifth position, the tank connection is connected to the second working connection and the pump connection and first working connection are shut off.

Abstract: An electrical machine (1) with a machine housing (5) receiving an electrically excited rotor (2) and a stator (10) of the electrical machine (1) and with an electronics unit (18) fastened to the machine housing (5) and electrically connected to an exciter winding (3) of the rotor (2) via at least one sliding contact (11, 12) consisting of at least one slip ring (13, 14) assigned to the rotor (2) and at least one brush (15, 16) assigned to the electronics unit (18), the brush (15, 16) being arranged displaceably in a brush holder (20). In this case it is provided that the brush holder (20) is fastened exchangeably in a guiding recess (27) of the electronics unit (18).

Abstract: A method for operating an exhaust gas system of an internal combustion engine is described, wherein NOx is reduced by means of a SCR catalyst and a NOx reduction capability of an aqueous urea solution to be introduced into the exhaust gas system is monitored, and wherein at least one first variable characterizing the ammonia content of the water is ascertained and an ageing of the aqueous urea solution is inferred from said first variable.