This pa.per investigates the asymptotic behavior of a single server queue with truncated heavy-tailed arrival sequences. 14'-e have discovered and explicitly asymptotically cha.ra.cterized a unique asymptotic behavior of t,he queue length distribution. Informally, this distribution on t,he log scale resembles a stair-wave function t h t lias steep drops a t specific buffer sizes. This has impor...

We report a computational fluid dynamics-discrete element method (CFD-DEM) simulation study on the interplay between mass transfer and a heterogeneous catalyzed chemical reaction in cocurrent gas-particle flows as encountered in risers. Slip velocity, axial gas dispersion, gas bypassing, and particle mixing phenomena have been evaluated under riser flow conditions to study the complex system be...

A method for calculating optic flow, using robust statistics, is developed. The method generally out-performs all competing methods in terms of accuracy. One of the key features in the success of this method, is that we use Least Median of Squares, which is known to be robust to outliers. The computational cost is kept very low by using an approximate solution to the Least Median of Squares onl...

Airline mergers and acquisitions (MAs) are on the rise across the globe and have been a growing trend in the U.S. aviation industry in the last few years. MAs are taking several factors into consideration, such as cost efficiency, competition, and geographic coverage. For airlines, these transactions can eliminate overlapping routes and help reduce competition, leading airlines to achieve highe...

Industrial ventilation problems can be linked to the formation of thermal plumes that develop due to natural convection above various heat sources. These plumes, independent of the energy losses and thermal constraints caused, can also be the carrier of polluting products. This article describes an experimental study of the dynamic, thermal, and mass fields that develop from a hot rectangular (...

1. AN HISTORICAL PERSPECTIVE Economics began with Xenophon=s AOeconomicus@ (c 360 BCE), in which Socrates interviews a model citizen who has two primary concerns. He goes out to his farm in the country to monitor and motivate his workers there. Then he goes back to the city, where his participation in various political institutions is essential for maintaining his rights to own this farm. Such ...

The growing field of complexity leadership argues that leadership emerges from within interactions. The specific nature of the interaction dynamics that enable organizing to emerge in social entrepreneurial enterprises provides a context for leadership in these projects. Three dimensions of this complexity context are identified and described. A gene rative context for leadership is present whe...

In this article we report on the effort of the university library of the Vienna University of Economics and Business Administration to integrate a digital library component for research documents authored at the university into the existing library infrastructure. Setting up a digital library has become a relatively easy task using the current data base technology and the components and tools f...

In this paper, Pareto oplima1it.y is studied i n the context of multiclass telecon~.naui~ica~ions networks v i t h constraints on the maxin~.unt alloulahle user delays. The perforn~~a.i~~ce objective of each individual class is th.e naaxin~~izat ioi~~ of throughput under a delay constraiii.t. Users share the net.work on a processor sharing basis. Th.e i~?~altiohjective problem that arises is so...

A non-cooperative model of network formation is developed. Link formation is one-sided. Information flow is two-way. The model builds on the work of Bala and Goyal who permit links to fail with a certain common probability. In our model the probability of failure can be different for different links. The set of networks which are Nash for suitably chosen model parameters consists of all essenti...