Method for correcting an angle error of an absolute-angle detector that detects the angular position of a first shaft whose rotary movement is linked to a second shaft. A photovoltaic system may extract the radiating energy, and a laser system may extract a significant fraction of the reaction energy in the form of coherent radiation. Prior to a mobility event in respect of said sender, a suitable transfer anchor node is identified within said network, and the tree re-rooted to that transfer anchor node. As content objects are input to the system or as a user selects desired objects for inclusion in a content object, the system arranges the content objects hierarchically, e. Each one of such adapters includes a plurality of adapter ports each one being coupled to a corresponding port of the host computer. A cylindrical cavity, concentric with the inner and outer cylindrical bodies, provides space for a sheet diaphragm looping around a seat provided by the inner cylindrical body.