An apparatus and method using a program protection engineering toolkit to provide program protection engineering, security management, and report preparation for sensitive and classified projects. The seismic data is transformed from the offset-time domain to the time-slowness domain using a Radon transformation. The comparators compare the input signals to reference signals and provide the results to a latch, which provides an oscillator output signal and controls the charging and discharging of the capacitors that provide the input signals. A plurality of connectingdisconnecting members are provided in a clearance between the driving shaft and the driven shaft for connecting or disconnecting the driving shaft and the driven shaft by being fitted or disconnected tofrom respective opposite surfaces. The capped poly is isolated andor purified by methods that reduce the concentrations of polar impurities that contribute to water absorption by the cured composition. The center hinge allows flexing of the panel to conform to the pitch of a roof.