A knock-down, modular furniture frame including a plurality of panels having interlocking sides and at least one tensioning device having a band that girds the plurality of panels to secure the plurality of panels together under tension into an interlocking relationship. The last known temperatures of a first component and a second component are read and a first temperature difference therebetween is calculated. In the approach of this application, the control surface effectively uses the Magnus effect to delay or stop a separation bubble from forming, which can increase lift, reduce drag, and delay degrees of stall by directly manipulating the velocity gradient in the fluid boundary layer. The access of the terminal to the non-CDMA2000 network is granted upon successful authentication.