My research interests lie in the field of emergency navigation and emergency management of confined places in both standard and emergency conditions. In conjunction, novel routing algorithms to realise energy efficiency in evacuation process are investigated. Disasters such as fire in buildings or vessels could cause a large amount of injuries and fatalities as well as enormous losses in proper...

BACKGROUND Decreasing hospital length of stay, and so freeing up hospital beds, represents an important cost saving which is often used in economic evaluations. The savings need to be accurately quantified in order to make optimal health care resource allocation decisions. Traditionally the accounting cost of a bed is used. We argue instead that the economic cost of a bed day is the better valu...

In this paper, we present a novel approach to the congestion control and resource allocation problem of elastic and real-time traffic in telecommunication networks. With the concept of utility functions, where each source uses a utility function to evaluate the benefit from achieving a transmission rate, we interpret the resource allocation problem as a global optimization problem. The solution...

Internet is widely used in the fast growing world. So the wired and wireless networks are mainly used in an active area and there are many limitations in the wireless mesh network. The Congestion Control in the Network field is by means of Scheduling packets from different traffic flows for processing at a specific node is done. In Wireless Adhoc Network, a channel assignment has to balance the...

Cost efficiency measures the cost of resource by output production. While conventional cost efficiency models set targets separately for each DMU, There are cases where the Central decision making is seeking the above targets, and at the same tries to obtain the target of Min cost efficiency for the total consumption. in this paper we consider that there is a centralized decision maker (DM). In...

The Internet has become a central means of communication on a global scale. Its emergence over the last two decades has been facilitated by the introduction of congestion control methodologies such as TCP, that allow millions of users to share network resources without causing congestion collapse. Beginning with the work of Frank Kelly [2], researchers have discovered that many currently used p...

in the deregulated power systems, transmission congestion is one of the significant and main problems of the electrical networks which can cause incremental cost in the energy. this problem has resulted to new challenging issues in different parts of power systems which there was not in the traditional systems or at least had very little importance. transmission congestion happens when the maxi...

We explore the properties of a congestion game where users of a congested resource anticipate the effect of their actions on the price of the resource. When users are sharing a single resource, we show existence and uniqueness of the Nash equilibrium, and establish that the aggregate utility received by the users is at least 3/4 of the maximum possible aggregate utility. We also consider extens...

Yan Chen, School of Information, University of Michigan, 1075 Beal Avenue, Ann Arbor, MI 48109-2112. Email: [email protected]. Laura Razzolini Department of Economics, School of Business, Virginia Commonwealth University, 1015 Floyd Avenue, Box 844000 Richmond, VA 23284-4000. E-mail: [email protected]. Theodore L. Turocy Department of Economics, Texas A&M University, College Station TX 77843. ...