In this paper, we present an approximate method for solution of load-dependent, closed queuing networks having general service time distributions with low variability. The proposed technique is an extension of Marie's (1980) method. In the methodology, conditional throughputs are obtained by an...

This paper aims to show the use of the response surface methodology (RSM) in size optimization of an autonomous PV/wind integrated hybrid energy system with battery storage. RSM is a collection of statistical and mathematical methods which relies on optimization of response surface with design...

During a medical emergency in the USA, critical medical supplies such as medications, vaccines, gloves, masks and ventilators, are delivered to one location within each state. The state and local governments are responsible for delivering the supplies from this location, called the receiving,...

Approximation strategies for transaction waiting times are proposed for use in Autonomous Vehicle Storage and Retrieval Systems (AVS/RSs) with non-Poisson arrival rates and non-exponential service times. The proposed modelling tools dynamically adjust approximations based on the variance of the...

This paper deals with a new strategy for the assignment of Stock Keeping Units (SKUs) to storage locations in a warehouse, called Order Oriented Slotting (OOS). Given an empty warehouse, a set of orders to be picked and a routing policy, OOS stores the SKUs in such a way that the total time...

Recognising the learning styles of today's upper level engineering undergraduates, a multimedia educational tool is developed to supplement traditional instruction in courses related to Materials Handling (MH) and facility design. The CD-ROM based system teaches design and analysis principles by...