In this study, DEA (data envelopment analysis) was applied to analyze the energy efficiency of wheat farms in order to … (technical efficiency), PTE (pure technical efficiency) and SE (scale efficiency) were determined. Furthermore, the effect of … inputs can be saved if the performance of inefficient farms rises to a high level. Additionally, it was observed that the …

use pattern for tomato production in Iran was investigated and a non-parametric data envelopment analysis (DEA) technique … tomato production in the region. Moreover, the results of DEA application revealed that of the average pure technical …

technical and scale efficiency of producers were analyzed using a non-parametric data envelopment analysis technique. The study … efficient and the mean efficiency of farmers was found to be 0.74 and 0.88 under constant and variable returns to scale …

and use of energy and exergy based performance criteria, and of the Second Law efficiency, with an aim at the advancement …Performance criteria, such as efficiencies and coefficients of performance, for energy systems, are commonly used but …

in the world. To discuss the problem from economics and business perspectives, this study proposes a new use of DEA (Data … under natural and managerial disposability. The proposed DEA approach evaluates various organizations by the three … efficiency measures such as OE (Operational Efficiency), UEN (Unified Efficiency under Natural disposability) and UENM (Unified …

efficiency of 0.4379. Moreover, contribution of each input factor for energy saving was assessed by DEA approach. …The main objective of the present study was to determine the energy use efficiency of soil-wheel interaction in a soil … energy waste of soil-tire interface. The potential of nonparametric technique of DEA (data envelopment analysis) and hybrid …

relative technical efficiency and productivity change of these companies. In order to verify the stability of our DEA model and …This paper provides an empirical analysis of the determinants of energy efficiency in 32 power electric generation … management companies over the period 2005–2009. The study uses non-parametric Data Envelopment Analysis (DEA) to estimate the …

energy efficiency by Data Envelopment Analysis (DEA) in corn production of Iran during a seven years period. Results … results showed that average energy use efficiency, energy productivity, specific energy and net energy gain in the studied … period was 2.59, 0.17 kg MJ−1, 7.24 MJ kg−1 and 51.34 GJ ha−1, respectively. DEA considered the yield (kg ha−1) as output and …

facilities. In this work, the LCA + DEA methodology was used to benchmark the operational and environmental performance of a …The combined use of Life Cycle Assessment and Data Envelopment Analysis (LCA + DEA methodology) facilitates the …, potential relationships between efficiency and annual power generation, location or average wind speed were discussed. …