Abstract This paper presents a numerical simulation of the steady propulsion state manta rays and investigates influence single motion parameters addition perturbation signals on hydrodynamic characteristics vortex evolution rays. A model equations ray were established by observing living organisms, then computational method combining immersed boundary (IBM) Sphere function-based Gas Kinetic Sc...

This paper analyzes renewal input state dependent queue with $N$- policy wherein the server takes exactly one vacation. Using the supplementary variable technique and recursive method, we derive the steady state system length distributions at various epochs. Various performance measures has been presented. Finally, some numerical  computations in the form of graphs are presented to show the par...

in this paper, distributed parameter process systems behavior is studied in frequency domain. based on the dominant gain concept that is developed for such studies, a method is presented to control distributed parameter process systems. by using dominant gain concept, the location of open loop zeros, resulted from the time delay parameter in the process model, were changed from the right half p...

In this article, we propose an adaptive grid based on mesh equidistribution principle for two-parameter convection-diffusion boundary value problems with continuous and discontinuous data. A numerical algorithm based on an upwind finite difference operator and an appropriate adaptive grid is constructed. Truncation errors are derived for both continuous and discontinuous problems. Parameter uni...

Abstract Traditionally, the energy efficiency properties of building envelope components are prescribed world-wide using steady-state “U-value” where insulation capabilities rely on thermal conductivity construction materials only. However, heat flow through is also restricted by effect other material combined in form inertia, a widely used parameter that can be controlled environment transient...