Scan tests tolerant to indeterminate states generated in an integrated circuit when employing signature analysis to analyze test outputs. In at least one embodiment, the case rotating system may be configured to cause a case in a case rotating module to be rotated such that a short side of the case leads the case as the case leaves the case rotating module. The process comprises transfer or pressure hydrogenation in the presenc of an optically active catalyst to reduce 1-indanones. The fourth lens group comprises a positive lens component, and the total number of lens components in the fourth lens group is 1. It is characterised by the adjustment of the power in one or more carriers of an OFDM signal for generating these notches, through the use of IDFTs of at least 1024 points or at least 2048 points and through the use of a window to multiply the symbols to be transmitted in time.