Embodiments of methods and apparatuses for transmission using a plurality of transmit chains based on a cost function for electromagnetic radiation are disclosed. A receiving section at the body of the stem front cap is provided for receiving and securing at least one aero support to enable the user to assume an aerodynamic operating posture on a bicycle. The system further includes an annealing stage for annealing the Erbium Oxide thin films by utilizing a low temperature treatment for a specified amount of time and temperature followed by a high temperature treatment for another specified amount of time and temperature, wherein the crystallinity of the thin films has improved. A collar with a transparent closed end is inserted into an opening in the housing.