منابع مشابه
Turnaround Scheduling
This paper concerns the highly complex task of scheduling large-scale maintenance activities during a plants shutdown or turnaround. We model it as a discrete time-cost tradeoff problem with capacity constraints and individual working shifts for different resource types with a cost function regarding a balanced resource consumption. We introduce and model the problem, give an overview on the la...
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The NHS Institute for Innovation and Improvement has determined that a £7 million saving can be achieved per trust by improving theatre efficiency. The aim of this quality improvement project was to improve orthopaedic theatre turnaround without compromising the patient safety. We process mapped all the stages from application of dressing to knife to skin on the next patient in order to identif...
متن کاملTurnaround in cyclic cosmology.
It is speculated how dark energy in a brane world can help reconcile an infinitely cyclic cosmology with the second law of thermodynamics. A cyclic model is described, in which dark energy with w<-1 equation of state leads to a turnaround at a time, extremely shortly before the would-be big rip, at which both volume and entropy of our Universe decrease by a gigantic factor, while very many inde...
متن کاملOncology drug discovery: planning a turnaround.
We have made remarkable progress in our understanding of the pathophysiology of cancer. This improved understanding has resulted in increasingly effective targeted therapies that are better tolerated than conventional cytotoxic agents and even curative in some patients. Unfortunately, the success rate of drug approval has been limited, and therapeutic improvements have been marginal, with too f...
متن کاملTurnaround Scheduling in Chemical Manufacturing
In chemical manufacturing and petroleum refining, large-scale maintenance activities must be conducted on a regular basis. Entire production units are shut down for disassembly and comprehensive inspection and renewal. Such a process is called Shutdown and Turnaround (or turnaround for short). It is an essential process but causes high out-of-service cost. Therefore a good schedule for the turn...
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ژورنال
عنوان ژورنال: Bulletin of the Atomic Scientists
سال: 2007
ISSN: 0096-3402,1938-3282
DOI: 10.1080/00963402.2007.11461123