A foaming composition for filling contains a polymer, an organic peroxide, and azodicarbonamide, and a viscosity thereof measured at a temperature of 120\xb0 C. In general, current locations of a number of users are obtained. A storage container reference list is maintained, wherein for each of the storage containers the storage container reference list identifies which files of a plurality of files reference a storage object within a given storage container. The skeleton includes one or two elastic sub beams, located below and approximately parallel to the main beam which supports the rubber strip. A locking arm is locks the locking mechanism assembly to the lock bar assembly, thereby securely holding the transportable vehicle. When this occurs a certain portion of the passageway is cut off meaning there is no fluid flow from at least one of inlet ports through the outlet port.