MEASURING OF CONSULTING ENGINEER EFFICIENCY WHEN USING CONSTRUCTIVE-TECHNOLOGICAL TEMPLATES

assessment of the efficiency of s.p.g.c refineries using network dea

data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...

Measuring Interval Efficiency in Convex Hull of Data Using DEA

Constructive and Technological Development of Hypoid Gears

In this paper we present a new method for analyzing and developing the hypoid gears in order to improve their constructive and technological particularities.. The first part describes the methodologies for optimization the backlash. Then, the variation of the normal vectors and curvature is analyzed in the neighbourhood of the contact point. In the final part is presented a method for modelling...

Measuring technological gap ratio of wheat production using StoNED approach to metafrontier

The aim of this paper is to use the concept of the metafrontier function to study the determination of efficiency differentials and Technological Gap Ratio (TGR) on wheat production in Khorasan Razavi province. In this study, we used the metafrontier function and group frontier based on the concept of Stochastic Nonparametric Envelopment of Data analysis (StoNED). The data used in this stud...

Measuring cardiac efficiency using PET/MRI.

Lawrence Berkeley National Laboratory, USA Heart failure (HF) is a complex syndrome that is projected by the American Heart Association to cost $160 billion by 2030. In HF, significant metabolic changes and structural remodeling lead to reduced cardiac efficiency. A normal heart is approximately 20-25% efficient measured by the ratio of work to oxygen utilization (1 ml oxygen = 21 joules). The ...