This paper presents a numerical scheme of arbitrary order accuracy in both space and time, based on the high-order derivatives methodology, for transient acoustic simulations. The combines nodal discontinuous Galerkin method spatial discretization Taylor series integrator (TSI) time integration. main idea TSI is temporal expansion all unknown variables which are replaced by via Cauchy-Kovalewsk...

in this research, we address the application of uncertaintyprogramming to design a multi-site, multi-product, multi-period,closed-loop supply chain (clsc) network. in order to make theresults of this article more realistic, a clsc for a case study inthe iron and steel industry has been explored. the presentedsupply chain covers three objective functions: maximization ofprofit, minimization of n...

A new fractional time-stepping technique for solving incompressible flows with variable density is proposed. The main feature of this method is that, as opposed to other known algorithms, the pressure is determined by just solving one Poisson equation per time step, which greatly reduces the computational cost. The stability of the method is proved and the performance of the method is numerical...

PURPOSE The objective of this study was to determine the positional relationship between the center of mass (COM) and the center of pressure (COP) at the time of step landing, and to examine their relationship with the joint moments exerted by the supporting limb, with regard to factors of the successful backward step response. METHODS The study population comprised 8 community-dwelling elder...