... CorporationAdvances in Difference EquationsVolume 2011, Article ID 934094, 12 pagesdoi:10.1155/2011/934094 Research Article Time-Delay and Fractional Derivativ esJ. A. Tenreiro MachadoDepartment ... case of approximation orders and fractional orders r {1, 2, 3} and α {0.1, 0.2, ,0.9}, respectively. In what concerns the bandwidth are considered ωmin0, and ωmax {100, 200, ,500} ... J.Sabatier,O.P.Agrawal,andJ.A.TenreiroMachad,Eds.,Advances in Fractional Calculus: TheoreticalDevelopments and Applications in Physics and Engineering, Springer, Dordrecht, The Netherlands, 2007.14...