Improvements in design and construction of apparatus, greater precision in the measurement of radiation dose not only on the body surface but also at depths below the surface, and the greater penetration of both gamma and x rays achieved by the use of larger quantities of radium and of x-ray units operating at higher voltages have all contributed to an ever-increasing efficiency in technique. A...

in this paper, using the value efficiency in dea pattern by taking decisive obtain. generally, non-radial model of ve and use proper weight to reduce input and output gain are the appropriate pattern. this paper introduces a multi-objective linear programming problem and efficiency determines the value of inefficient units. use interactive methods to solve molp proposed and applied. in conclusi...

Efficiency evaluation of units has been of interest since many years in different domains such as management, economy, business, banking, and many others. Data envelopment analysis is one of the popular operations research methods for measuring the relative efficiency of units, which use multiple inputs to produce multiple outputs. As we know, universities play a key role in many aspects of a c...

introduction: hospitals as important sector of health care system has special location in health economic science. increasing of the operational costs in hospital and limitation in financing cause that hospital as an economic firm use cost analysis and prepare effective using of resource and boost productivity. therefore this study was conducted to calculate daily- patient hotel cost in hospita...

this paper deals with the problem of optimizing two-stage structure decision making units (dmus) where the activity and the performance of two-stage dmu in one period effect on its efficiency in the next period. to evaluate such systems the effect of activities in one period on ones in the next term must be considered. to do so, we propose a dynamic dea approach to measure the performance of su...

traditional dairy farm can be one of the main entities of milk production in the country. regarding livestock feed limitations and the rise in price and shortage of necessary inputs in iran, the policy of boosting the efficiency of stock units, could be one of the good policies to reduce the costs, produces more benefits and increases the competitiveness among the units. taking in to account th...