Journal ArticleDOI
Optimization of energy required and greenhouse gas emissions analysis for orange producers using data envelopment analysis approach
TLDR
In this paper, the authors used data envelopment analysis for measuring the efficiency of orchardists, discriminate efficient and inefficient produce from inefficient ones and identify wasteful uses of energy using data envelope analysis for orange production in Guilan province of Iran.About:
This article is published in Journal of Cleaner Production.The article was published on 2014-02-15. It has received 153 citations till now. The article focuses on the topics: Data envelopment analysis.read more
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Modeling and Optimization of Energy Inputs and Greenhouse Gas Emissions for Eggplant Production Using Artificial Neural Network and Multi-Objective Genetic Algorithm
TL;DR: In this article, the authors studied the modeling and optimization of energy use and greenhouse gas emissions of eggplant production using artificial neural network and multi-objective genetic algorithm in Guilan province of Iran.
Journal ArticleDOI
Applying DEA optimization approach for energy auditing in wheat cultivation under rice-wheat and cotton-wheat cropping systems in north-western India
TL;DR: In this article, the energy input-output relationship for wheat cultivation was estimated from data collected from 80 wheat producers (40 each in rice-wheat and cottonwheat cropping system) by face-to-face survey.
Journal ArticleDOI
Carbon footprint of China's livestock system – a case study of farm survey in Sichuan province, China
TL;DR: Wang et al. as mentioned in this paper quantified and quantified the carbon footprint (CF) of livestock production to offer insights into how livestock production contributes to climate change and help to establish potential greenhouse gas mitigation options.
Journal ArticleDOI
Applying data envelopment analysis to evaluation of energy efficiency and decreasing of greenhouse gas emissions of fattening farms
Homa Hosseinzadeh-Bandbafha,Dariush Safarzadeh,Ebrahim Ahmadi,Ashkan Nabavi-Pelesaraei,Ehssan Hosseinzadeh-Bandbafha +4 more
TL;DR: In this paper, data envelopment analysis was employed for determining the energy efficiency of fattening farms in order to separate efficient and inefficient ranchers and to calculate the wasteful uses of energy.
Journal ArticleDOI
Measuring technical efficiency of potato production in Iran using robust data envelopment analysis
TL;DR: In this paper, a nonparametric method of data envelopment analysis (DEA) was applied to analyze the technical and scale efficiency of potato production in 23 Iranian provinces, and the proposed DEA for 23 Iranian potato-producing provinces reveals that the average technical efficiency is 90% and the scale efficiency is 97%.
References
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Journal ArticleDOI
Coefficient alpha and the internal structure of tests.
TL;DR: In this paper, a general formula (α) of which a special case is the Kuder-Richardson coefficient of equivalence is shown to be the mean of all split-half coefficients resulting from different splittings of a test, therefore an estimate of the correlation between two random samples of items from a universe of items like those in the test.
Journal ArticleDOI
Measuring the efficiency of decision making units
TL;DR: A nonlinear (nonconvex) programming model provides a new definition of efficiency for use in evaluating activities of not-for-profit entities participating in public programs and methods for objectively determining weights by reference to the observational data for the multiple outputs and multiple inputs that characterize such programs.
Journal ArticleDOI
Some Models for Estimating Technical and Scale Inefficiencies in Data Envelopment Analysis
TL;DR: The CCR ratio form introduced by Charnes, Cooper and Rhodes, as part of their Data Envelopment Analysis approach, comprehends both technical and scale inefficiencies via the optimal value of the ratio form, as obtained directly from the data without requiring a priori specification of weights and/or explicit delineation of assumed functional forms of relations between inputs and outputs as mentioned in this paper.
Book
Data Envelopment Analysis: A Comprehensive Text with Models, Applications, References and DEA-Solver Software
TL;DR: In this article, the basic CCR model and DEA models with restricted multipliers are discussed. But they do not consider the effect of non-discretionary and categorical variables.
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Carbon emission from farm operations
TL;DR: The available information on energy use in farm operations, and its conversion into carbon equivalent (CE) is a synthesis of the available information and shows that an output/input ratio, expressed either as gross or net output of C, must be >1 and has an increasing trend over time.