The present disclosure is directed to charge generating compositions and methods of making the charge generating compositions. The display device includes: a touch panel; a display panel in close contact with the lower surface of the touch panel; and a plurality of sensors arranged under the touch panel and configured to sense a pressure which is applied to the touch panel. Dynamic factors can affect the refresh operation and the memory may be refreshed without restoring the entire system to a high power state. The mirror structures each include a reflective surface portion, which is arranged in close proximity to the reflective surface portions of other mirror structures and in a generally linear alignment, forming a row structure. Exemplary embodiments and aspects include, without limitation, re-use of nuclear fission fuel, alternate fuels and fuel geometries, modular fuel cores, fast fluid cooling, variable burn-up, programmable nuclear thermostats, fast flux irradiation, temperature-driven surface areavolume ratio neutron absorption, low coolant temperature cores, refueling, and the like. Variable pitch pulley adjust a serpentine belt which adjust the rotation of the planetary gears to adjust the output shaft.