We investigate, through a fractional mathematical model, the effects of physical distance on SARS-CoV-2 virus transmission. Two controls are considered in our model for eradication spread COVID-19: media education, campaigns explaining importance social distancing, use face masks, etc., towards all population, while second one is quarantine isolation exposed individuals. A general order optimal...

Impedance control is widely applied in contact force for robot manipulators. The traditional impedance model linear, and has limitations describing the actual force. In addition, time-varying dynamic coupling characteristics pose critical challenges to high-speed high-precision control. this paper, a fractional order controller (FOIC) proposed industrial manipulator systematic FOIC parameters t...

fractional calculus has been used to model the physical and engineering processes that have found to be best described by fractional differential equations. for that reason, we need a reliable and efficient technique for the solution of fractional differential equations. the aim of this paper is to present an analytical approximation solution for linear and nonlinear multi-order fractional diff...

in this paper we introduce a type of fractional-order polynomials basedon the classical chebyshev polynomials of the second kind (fcss). also we construct the operationalmatrix of fractional derivative of order $ gamma $ in the caputo for fcss and show that this matrix with the tau method are utilized to reduce the solution of some fractional-order differential equations.