A stack of 50 layers of a first pitch-base carbon fiber sheet is formed, two sets of stack each having two second pitch-base carbon fiber sheets stacked therein are fabricated. The strips reduce gas leakage from occurring. The INT 13 access requests are directed to a translation function that maps cylinder head sector addresses and commands native to floppy disk media to linear block addresses and commands used to access data within SCSI devices. Rf2 is selected from perfluorinated C1-C10 alkyl groups and partially fluorinated C1-C10 alkyl groups, and derivatives thereof having catenated heteroatom. In the interval of a data signal, the weighting coefficients are updated from the initial weighting coefficients.