Abstract: The invention relates to an injection device for the metered injection of two liquids, in predeterminable quantity ratios, into a reaction chamber, the device having a housing (1) that includes an injection nozzle, the opening (13) of which forms an injection valve with the valve seat (14) in the housing (1) and a valve body (15) that can be positioned on the valve seat (14); the valve body (15) can be moved by a first actuator; the collection chamber (16) of the device is associated with the nozzle opening (13), and is connected to a supply line (17) for the first liquid (A) and a supply line (21) for the second liquid (B), with a metering valve (22) being set up to block at least one supply line (21) to the collection chamber, the valve being actuated by a second actuator; one of the two liquids is under a higher pressure than the other liquid; the device further has a control device (10), which can actuate the two actuators as a function of a load-stipulated total injection quantity and as a function of a

Abstract: In the present method for broadcasting a message in an incomplete radio communication network (2) having a fluctuating number of subscribers (4-12) for forwarding the message, with each subscriber having a transmitting and receiving device for messages and a positioning system for determining his global position, subscribers (6-12) determine their own position, and the distance d from the sender of the message, who is also a subscriber (6-12), after receiving the message, and transmit the message, with their own position, to further subscribers (6-12) after a predetermined waiting period t, which decreases monotonically as the distance d increases. This measure ensures a rapid transmission of the message that does not burden the radio communication network (2).

Abstract: There is provided a method of generating no error in the output of a resonator fiber optic gyro even when the polarization dependency loss is present in a ring resonator of the resonator fiber optic gyro. The relationship between &Dgr;L and &Dgr;&bgr; is set to satisfy the formula &Dgr;&bgr;&Dgr;L=&pgr;+2n&pgr; [radian] (n: integer), or &Dgr;&bgr;&Dgr;L is close to the value obtained from the formula, where &Dgr;L is defined as the difference between the lengths L1 and L2 of two portions of a waveguide divided by a coupler and a polarization-rotating point in the ring resonator, and &Dgr;&bgr; is defined as the difference in propagation constant of two axes of polarization having the waveguide. &Dgr;L is set so that the error induced by the polarization fluctuation is minimized.