This paper investigates a two-echelon stochastic inventory system with returns and partial backlogging; our proposed model, which is realistic for practical situations, might ...

In this paper, simulations of the approximation solutions of time-fractional wave, forced wave (shear wave), and damped wave equations are given. The common finite difference ...

Queueing networks are used as a main tool for modeling and analysis of many engineering applications. These applications include for example computer systems, communication ...

This notebook illustrates how to use MathCode F90 to build a dynamic model of a physical system and then generate efficient code for simulation.

Luc presents the current business model of Wolfram|Alpha, how it has evolved over the last 3 years, and how it is likely to evolve in the near future.

Standard optical imaging systems change their focal length by mechanical movement of lenses and lens groups along the optical axes. An alternative approach is realized in ...

Statistical Inference Package is a Mathematica application package that makes it easy for users to do classical likelihood-based statistical inference. It provides the ...

Dark energy cosmologies with an equation of state parameter w less than -1 are often found to violate the null energy condition and show unstable behaviour. A solution to ...

The free vibration analysis of cylindrical helical springs is carried out by means of an analytical study. In the governing equations of the motion of the springs, all ...

Artificial neural networks (ANNs) are used extensively to model unknown or unspecified functional relationships between the input and output of a ‘‘black box’’ ...