A method for providing an application carousel includes providing a self-service website for a third party partner supplier to create, select or group apps in a unique app carousel created by the supplier in the website. The method also includes determining the root mean square signal power of an AC component of the digitized electrical signal at the modulation frequency. The purified water is then additionally purified, the mud consisting of impurities from the pre-purification and the main purification process is physically separated, and the transformation of raw water into purified water is carried out continuously. A filtering unit filters the monitor instruction and the response signal. By controllably varying these stresses within NFET and PFET devices formed on a substrate, improvements in IC performance have been demonstrated. If the comparison yields an energy insufficiency, the energy source is instructed to recharge the accumulator, and hence increase its energy level.