Abstract: A remote water quality monitoring arrangement, a distributed water quality monitoring system with said remote water quality monitoring arrangement, and a method for replacing or installing said remote water quality monitoring arrangement in said distributed water quality monitoring system are provided. The remote water quality monitoring arrangement may include a position detection device, for example a GPS-receiver (Global Positioning System), while a current location of said remote water quality monitoring arrangement is automatically detectable/detected. Water quality measurements, i.e., measurement data, of said remote water quality monitoring arrangement can automatically be assigned with the detected location facilitating a central server—receiving the measurements, i.e.

Abstract: A method clusters a plurality of users in a mobile network, according to a specific profile. Data regarding the user is allocated to each user. Data is immediately exchanged between at least two users as soon as said users are located in a predefined communication range in order to spot users with profiles having a given content.

Abstract: In a high-voltage circuit-breaker having arcing contact pieces that are movable relatively to each other, and an axially movable insulating nozzle, provision is made for an axially displaceable field electrode on the side lying opposite the drive. Used as an auxiliary drive for the field electrode is a first coupling shank which is connected to the axially movable insulating nozzle and which acts upon a gearing composed of a swivelling lever with a control pin a connecting link guide and a second coupling shank connected to the control pin and to the field electrode. For additionally driving the second arcing contact piece surrounded by the field electrode, the first coupling shank, with the assistance of a journal, also acts upon a deflection gear composed of a two-armed lever, having a fork-like design at one end for the coulisse-type guidance of the journal, and a pendulum element at the other end of the lever coupled to the second arcing contact piece.

Abstract: In an exemplary embodiment, in order to operate the X-ray diagnostic generator with a decreasing (or "falling") load during an X-ray exposure, there is disposed in the primary circuit of the high voltage transformer a bridge rectifier in whose D.C. current branch there is disposed a series of networks each consisting of at least one resistance and one capacitor in parallel, and a switch for the purpose of switching the network into and out of the circuit. A timing control initially short circuits the resistance-capacitance networks to provide for maximum primary current at the start of an exposure, the shunt capacitor absorbing such primary current when each resistance-capacitance network is first switched into the circuit to initiate a relatively smoothly decreasing primary current as a function of time. As secondary voltage tends to decrease, the X-ray tube current is progressively reduced to maintain the selected X-ray tube voltage, the result being the desired smoothly decreasing load characteristic.