The present invention provides an electrical connecting member and an electrical connecting method for achieving electrical connection securely through conductive particles regardless of a slight unevenness of an object matter. The method also includes accessing a sparse representation index using the identified features. The participants transmit data indicative of their preferences among or between the presented design alternatives. A second feed designed for operation on a second RF frequency band includes a second feed horn and a second sub-reflector, each positioned at a location along the boresight axis of the main reflector so that they share a commonly located second phase center. The cylindrical plug is defined by a central plug axis that is offset from the central clamp axis.