A transmission circuit including four transmission component sets for Ethernet is provided. These two error signals are separately weighted according to the absolute value of the amplitude error, the weight of the amplitude error signal decreasing and the weight of the squared envelope error signal increasing as the absolute value of the amplitude error increases. And an amount of power that is applied to at least one of the plurality of electrodes is modulated so as to deposit the material on the stationary substrate with a desired characteristic. Additionally, the connector may include a mechanism for closing the auxiliary flow lines of one or both components upon disconnection of the fluid connection between the two components. The arched crown contains arches in two dimensions.