Abstract: A method for actuating an actuable deflection device of an optical system for a virtual retinal display. A first eye status of the user of the virtual retinal display, detected and/or determined using an eye status detection device of the optical system, is received by way of a control unit of the optical system at a first time. In addition, first actuation signals are generated for the actuable deflection device using the control unit, in such a way that the scanning region of the deflection device is adjusted in accordance with the detected and/or determined first eye status of the user.

Abstract: A method operates a braking device for motor vehicles, in particular for utility vehicles. Along a trailer supply line for supplying air to a parking brake of a trailer and/or a trailer control line for supplying air to an operating brake of a trailer, the air pressure is measured by at least one pressure transducer and is transmitted in the form of an electric signal to an electronic control unit of the motor vehicle. In the event of a faulty pressure change response, an open trailer supply line and/or an open trailer control line is detected.

Abstract: The present invention relates to a method for increasing the magnesium ion concentration of feed water. The method comprises the steps of providing an inlet flow of feed water QIN and passing said flow QIN through a solid bed comprising a magnesium ion source to obtain an outlet flow of treated water QOUT having an increased concentration of magnesium ions. The invention further relates to a water treatment system for increasing the magnesium ion concentration of feed water and a corresponding flow reactor.

Abstract: The present invention relates to a method for increasing the magnesium ion concentration of feed water. The method comprises the steps of providing an inlet flow of feed water (QIN), increasing the concentration of carbon dioxide in said inlet flow QIN to obtain a flow of carbon dioxide-containing feed water (QCO2), and passing said flow QCO2 through a solid bed comprising a magnesium ion source to obtain an outlet flow of treated water (QOUT) having an increased concentration of magnesium ions. The invention further relates to a water treatment system for increasing the magnesium ion concentration of feed water and a corresponding flow reactor.

Abstract: A method operates a braking device for motor vehicles, in particular for utility vehicles. Along a trailer supply line for supplying air to a parking brake of a trailer and/or a trailer control line for supplying air to an operating brake of a trailer, the air pressure is measured by at least one pressure transducer and is transmitted in the form of an electric signal to an electronic control unit of the motor vehicle. In the event of a faulty pressure change response, an open trailer supply line and/or an open trailer control line is detected.

Abstract: The present invention relates to a method for increasing the magnesium ion concentration of feed water. The method comprises the steps of providing an inlet flow of feed water (QIN), increasing the concentration of carbon dioxide in said inlet flow QIN to obtain a flow of carbon dioxide-containing feed water (QCO2), and passing said flow QCO2 through a solid bed comprising a magnesium ion source to obtain an outlet flow of treated water (QOUT) having an increased concentration of magnesium ions. The invention further relates to a water treatment system for increasing the magnesium ion concentration of feed water and a corresponding flow reactor.

Abstract: The present invention relates to a method for increasing the magnesium ion concentration of feed water. The method comprises the steps of providing an inlet flow of feed water QIN and passing said flow QIN through a solid bed comprising a magnesium ion source to obtain an outlet flow of treated water QOUT having an increased concentration of magnesium ions. The invention further relates to a water treatment system for increasing the magnesium ion concentration of feed water and a corresponding flow reactor.