Methods and systems of delivering a stent at an elevated temperature are disclosed herein. The filtration article includes a filtration medium that includes a porous membrane. Further embodiments describe a system for transferring credit of a mobile phone or SIM card to a new mobile phone on authentication of the identity of a user. The second simulated wrap includes a second wrap surface extending in a second helical pattern intertwined helically with the first wrap surface. The selected pattern is placed in the sub-region. In one example, the ability of the system to accurately issue deploy commands to an airbag squib is tested at selected EMI frequencies.