in this paper, a location allocation (la) problem in construction and demolition (c&d;) waste management (wm) is studied. a bi-level model for this problem under a fuzzy random environment is presented where the upper level is the governments who sets up the processing centers, and the lower level are the administrators of different construction projects who control c&d; waste and the after tre...

In Darwin’s world the user creates robot-like graphical creatures with behavior defined by a simple programming language. These creatures migrate around a small two-dimensional grid, each according to its simple program created by the user. The GUI application that controls and displays the location of these creatures must interpret the program instructions supplied in a simple text file for ea...

This paper shows how object oriented programming concepts may be used to establish a framework for supporting simulation model programming. It describes how this has been implemented in a system written in CH called SIC. Its support of stochastic simulation concerns three fields: First, a library of simulation tools for random number generation and statistical analysis is offered along with a m...

We present an iterative algorithm to determine the dynamic user equilibrium for link costs given by a traac simulation model. Each driver's route choice is modelled by a discrete probability distribution which is used to select a route in the simulation. After each simulation run, the probability distribution is adapted to minimize the perceived costs. As an example application, a dynamic versi...

This paper presents the design, simulation, and measurement of two low-cost broadband circularly polarized (CP) printed antennas: a single element and an array at C band. The proposed single element antenna is excited by an L-shaped strip with a tapered end, located along the circular-slot diagonal line in the back plane. From the array experimental results, the 3 dB axial ratio bandwidth can r...

Peltier technology opens new opportunities for special applications. In the current project, this technology was applied to design and fabricate a portable thermoelectric beverage cooler and thermoelectric cup. The simulation and results of the experiment showed that the common beverage cooler is not a suitable design for ignoring the effect of natural convection in cooling. In our thermoel...