A hydraulic binder, includes cement, and a mixture added to the cement and made of moist green vitriol and an inert carrier substance in the form of silica gel or alumina. The RF resonance circuit includes a novel principal detector element, capacitor elements, and a sample chamber. A vent extends from the groove in the valve seat to be in communication with a flow alarm and an accumulator alarm. Then a coarseness factor image is obtained and analyzed to determine whether a coarseness factor of the bottom of the corresponding blind hole preform is acceptable and the corresponding insert is modified if it is not acceptable. Alternatively, the process may be aided directly by the flexible support by, for example, making a fold in the support which causes it to function as a spring. Such throughput estimates may be used to select a wireless network to join from among multiple available wireless networks.