The six-degree equations of flight in their classic form do not provide a proper physical perception due to a number of interferences. Nor do they render visible the important role of attack angles. In this study, attempts have been made to develop a complete set of 3D acceleration equations from the equations of normal and tangential acceleration αN=vωv, αt=v ̇. For this purpose, a coordinate s...

The government organizations grant incentives to promote green product consumption, improve green product quality, boost remanufacturing activities, etc. through various policies. The objective of this study is to highlight pros and cons of two incentive policies, namely (1) incentive on manufacturer’s R&D investment and (2) direct incentive to consumer based on greening level of the product on...

Using Donnell-type shell theory a simple and exact procedure is presented for linear buckling analysis of functionally graded conical shells under axial compressive loads and external pressure. The solution is in the form of a power series in terms of a particularly convenient coordinate system. By analyzing the buckling of a series of conical shells, under various boundary conditions and diffe...

We study models of coordination, negotiation and collaboration in multi-agent systems (MAS). More specifically, we investigate scalable models and protocols for various distributed consensus coordination problems in large-scale MAS. Examples of such problems include conflict avoidance, leader election and coalition formation. We are particularly interested in application domains where robotic o...

Inspired by recent innovations in the retail industry, we study an on-demand personal shopper service that lets customers shop online for products from brick and mortar stores. A fleet of shoppers fulfills customer orders, performing both shopping at stores delivery to customers. The operation such a requires dynamically offer incoming requests, coordinate shoppers, schedule operations stores, ...