It is inevitable in distribution processing on a network to improve resource management or to provide task scheduling with high efficiency. This sound-proof wall, though light in weight, has a superior sound insulation property and will never corrode because it is made of FRP. The satellite routes the message to the selected gateway through at least one Inter-Satellite Link to at least one further satellite. An operational amplifier has an inverting input terminal coupled to the fourth conduction node, a non-inverting input terminal biased at the voltage at the third conduction node, and an output terminal coupled in feedback mode to the inverting input by a feedback resistor. The first plurality of guide channels conform to the shape of the plurality of cup-shaped pins to allow movement of the plurality of cup-shaped pins in a first direction while restraining movement transverse to the first direction. In particular, the present method is applicable to electrochemical sensors where the sensor includes a substrate, first and second working electrodes, and a reference electrode and either the first and second or only the second working electrode include regions which are bare of reagent.