A step-by-step algorithm for enhancement of periodic signals that are highly corrupted by additive uncorrelated white gausian noise is proposed. In each adaptation step a new parallel second-order section is added to the previous filters. Every section has only one adjustable parameter, i.e., the center frequency of the self-tuning filter. The bandwidth and the convergence factor of each secti...

abstractderivative action is an action filed by shareholders against corporatedirectors in order to recover corporate’s rights. this mechanism is set up tohave the directors answerable for their failure in carrying out their duties.prior to the ca 2006, foss v. horbottle rule deprived shareholders of takingany action against directors but in exceptional cases. acknowledging theright of filing d...

section gamosepalum has been reported from turkey for the first time by dudley. in recent years, several species of this section were reported as new records for iran. four species of alyssum section are tranfered from sect. alyssum to sect. gamosepalum with considering of important characters in each section. these changes made two synonymies. five species of gamosepalum section including a. l...