The invention relates to a polymeric indicator fixed in a polymeric gel carrier, wherein the polymeric gel carrier comprises a hydrophilic polymer, wherein the polymeric indicator and the hydrophilic polymer are present together in the form of a combined cross-linked hydrogel network fixed by chemical bonds.
A method for counting bicycle path traffic by emitting ultrasonic pulses or series of pulses crossing the path with two ultrasonic transceivers, spaced with a distance from one another being larger than the length of the vehicles to be counted, on one side of the path, followed by a specified number of counted repetitive clock cycles whether the signal is reflected and, if so, it is registered in which cycle and when it occurred, and at the end of the second specified period of time (T2) following the pulse output, the pulse or pulse train output and the subsequent cycle counting and monitoring are repeated, and the passing by of a vehicle or person is detected based on the phenomenon that the clock cycles counted until the reflection is detected should be proximately constant, and the direction of movement is detected based on whether the first signal reflection is detected by the first or the second transceiver unit (20, 30).
The method of the subject matter innovation is used for detecting leaks in pipelines carrying a flowing medium.
The efficiency of embryo implantation is surprisingly low in humans. This can either be attributed to the high rate of chromosomally abnormal embryos, or to uterine factors, if the embryo is chromosomally normal.
Mass spectrometric ionization methods have traditionally been developed to study molecules present in the gas phase.