We consider a combined traffic equilibrium model for mode and route choice with elastic demand, stated as an optimization problem. We state a problem for finding sensitivity information on changes in link flows and travel demands with respect to changes in certain design parameters in the model. In the presentation, we state the sensitivity analysis problem, and propose a solution algorithm sui...

Network virtualization realizes the vision of an Internet where resources offered by different stakeholders are used and shared by multiple coexisting virtual networks. The abstraction introduced by network virtualization opens new business opportunities. We expect that in the near future, infrastructure providers (or resource brokers and resellers) will offer flexibly specifiable and on-demand...

The advent of virtualisation and the increasing demand for outsourced, elastic compute charged on a payas-you-use basis has stimulated the development of large-scale Cloud Data Centres (DCs) housing tens of thousands of computer clusters. Of the significant capital outlay required for building and operating such infrastructures, server and network equipment account for 45 and 15% of the total c...

In earlier work a toll pricing framework for congestion pricing has been developed for both fixed and elastic demand traffic assignment models as an alternative to traditional marginal social cost pricing. Within the framework it is possible to define alternative objectives such as minimizing toll costs, minimizing the number of toll booths, etc. This paper will report the results of recent com...

reservoir characterization plays an important role in different parts of an industrial project. the results from a reservoir characterization study give insight into rock and fluid properties which can optimize the choice of drilling locations and reduce risk and uncertainty. delineating hydrocarbon bearing zones within a reservoir is the main objective of any seismic reservoir characterization...

Past earthquakes have demonstrated that old RC bridges may be seismically vulnerable. Bridge responses during the last decades illustrated the necessity of the seismic assessment of bridges especially those which were designed with old codes. In this research an existing concrete bridge representative of the most common bridges in the highway system in Iran are studied. Push over and nonlinear ...

Witnessing the rapid progress and accelerated commercialization made in recent years for introduction of air taxi services near future across metropolitan cities, our research focuses on one most important consideration such services, i.e., infrastructure planning (also known as skyports). We consider design skyport locations taxis accessing airports, where we present location problem a modifie...

We develop an estimator for the parameters of a utility function that has interactions between the unobserved demand error and observed factors including price. We show that the Berry (1994)/Berry, Levinsohn, and Pakes (1995) inversion and contraction can still be used to recover the mean utility term that now contains both the demand error and the interactions with the error. However, the inst...

Most windowing systems follow the independent overlapping windows approach, which emerged as an answer to the needs of early computer users. Due to advances in computers, display technology, and increased information needs, modern users demand more functionality from window management systems. We propose Elastic Windows with improved spatial layout and rapid multi-window operations as an altern...