@article{oai:kitami-it.repo.nii.ac.jp:00008699,
 author = {A.M.M. Sharif , Ullah and A.M.M. Sharif , Ullah},
 issue = {2},
 journal = {Mathematical and Computational Applications},
 month = {May},
 note = {Dynamical systems play a vital role in studying highly non-linear phenomena. One of the families of the dynamical systems is integer sequences. There is an integer sequence called Q-sequence: Q(n) = Q(n - Q(n - 1)) + Q(n - Q(n - 2)); for n = 3, 4, . . . ; and Q(1) = Q(2) = 1. It exhibits a unique chaotic-order that might help develop approximate models of highly nonlinear phenomena. We explore this possibility and show how to modify a segment of the Q-sequence so that the modified segment becomes an approximate model of surface roughness (a highly non-linear phenomena that results from the material removal processes (e.g., turning, milling, grinding, and so on). The Q-sequence-based models of surface roughness can be used to recreate the surface heights whenever necessary. As such, it is a helpful means for developing simulation systems for virtual manufacturing.},
 title = {Surface Roughness Modeling Using Q-Sequence},
 volume = {22},
 year = {2017}
}