Systems and methods for operating with oscillators configured to produce an oscillating signal having an arbitrary frequency are described. The kits and compositions comprise soluble alginate and insoluble alginategelling ion particles. While the spanned virtual hard drive is maintained on the computer storage media, the method includes storing data of the non-spanned virtual hard drive on one of the computer-storage media. The system is then able to remove the noise by setting those bits to a fixed value. Then, the phase spectra for the different frequencies f are displayed vs. An imaging core is configured and arranged for inserting into the lumen.