Implementations described and claimed herein provide a dual reader wherein a bottom shield is attached to side shields. When the above process is combined with the acid decomposition, it becomes possible to decompose a linear formal compound obtained from 2 molecules of TMP contained in the still residue as crude TMP and one molecule of formaldehyde, so that di-TMP having a higher purity is obtained. The structure and the transparent area are configured to keep a ratio constant, the ratio being a ratio between a size of the transparent area’s part opposing the structure’s part and a size of the rest of the transparent area. File transfer and storage interface and programmable control circuit is coupled to the gate and is operable to validate user credentials. The wafer heating apparatus has the electrostatic attraction function characterized in that the insulating layer covering the electrode for electrostatic attraction has a lower surface resistivity in a portion on the side of an object to be attracted compared with a surface resistivity in a portion on the side of the electrostatic attraction electrode. A morphing airfoil for an aircraft, an aircraft with a morphing airfoil and a method for manufacturing a morphing airfoil are also described.