Mobility Tracking operations in a personal communication service (PCS) system are signaling consuming. Several strategies have been proposed in the literature to reduce both, the location update (LU) and the paging (PG) costs. In this paper, we propose a location-tracking algorithm called three-location area (TrLA), combined with selective paging. In the TrLA, the mobile terminal (MT) allocates...

Handling freight in a crossdocking terminal is labor-intensive, and therefore costly, because workers must unload, sort, and transfer a wide variety of freight from incoming to outgoing trailers. The eÆciency of workers depends, in large part, on how trailers are assigned to doors around the dock; that is, on its layout. A good layout reduces travel distances without creating congestion, but, u...

D riven by changing reimbursement models, the rapidly changing science of medicine and increasing competitive pressures on health systems, enterprise-level analytics is critical for healthcare organizations. Historically, health systems have approached analytics primarily from an incremental, retrospective and operational-siloed approach. This approach, " Analytics 1.0, " has historically labor...

the article of marc jamoulle shows the importance of the contribution of general practitioners (gps) in improving the quality and the efficiency of the health systems. starting from the concept of quaternary prevention for reducing excessive costs in the preventive procedures, he suggests a change of paradigm in every daily activity of the gp in order to have a stronger ethical approach to the ...

Title of dissertation: ALGORITHMIC APPROACHES TO REDUCING RESOURCE COSTS IN DATA CENTERS Koyel Mukherjee, Doctor of Philosophy, 2013 Dissertation directed by: Professor Samir Khuller Department of Computer Science A substantial portion of resource costs incurred by data centers relate to energy costs, with cooling energy and equipment powering energy accounting for a major fraction. Other major...

The Department of Defense (DoD) Environmental Security Technology Certification Program and the Environmental Protection Agency sponsored a project to evaluate the benefits and utility of contaminant transport simulation-optimization algorithms against traditional (trial and error) modeling approaches. Three pump-and-treat facilities operated by the DoD were selected for inclusion in the projec...

We study static repair priorities in a system consisting of one repair shop and one stockpoint, where spare parts of multiple repairables are kept on stock to serve an installed base of technical systems. Demands for ready-for-use parts occur according to Poisson processes, and are accompanied by returns of failed parts. The demands are met from stock if possible, and otherwise they are backord...

April 2007 | Volume 4 | Issue 4 | e104 In 2004, health-care providers in the United States consumed $US1.9 trillion, or about 16% of the gross domestic product. By 2010, the cost of health care is predicted to exceed 20% of the US gross domestic product [1]. The management of chronic diseases currently accounts for 70%–75% of health-care spending [2], and this proportion is likely to increase i...

Information systems can serve as intermediaries between the buyers and the sellers in a market, creating an “electronic marketplace” that lowers the buyers' cost to acquire information about seller prices and product offerings. As a result, electronic marketplaces reduce the inefficiencies caused by buyer search costs, in the process reducing the ability of sellers to extract monopolistic profi...