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
Citations
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Journal ArticleDOI
Energy flow analysis for rice production in different geographical regions of Iran
TL;DR: In this paper, the authors analyzed and compared the energy use pattern for rice production in different geographical regions, Golestan, Mazandaran and Guilan, northern provinces of Iran.
Journal ArticleDOI
Optimization of energy consumption and environmental impacts of arecanut production through coupled data envelopment analysis and life cycle assessment
TL;DR: In this article, the authors investigated the environmental impacts of arecanut production with a cradle to gate perspective; using, raw materials extraction, manufacture, use, and supply of inputs to the farm.
Journal ArticleDOI
Energy auditing and optimization approach for improving energy efficiency of rice cultivation in south-western Punjab, India
TL;DR: In this paper, the authors used data collected from 40 farmers during a face-to-face interview to optimize energy use in rice cultivation and found that rice cultivation was energy efficient with energy ratio (ER) of 5.0
Journal ArticleDOI
Decreasing environmental impacts of cropping systems using life cycle assessment (LCA) and multi-objective genetic algorithm
Benyamin Khoshnevisan,Elham Bolandnazar,Shahaboddin Shamshirband,Shahaboddin Shamshirband,Hanifreza Motamed Shariati,Nor Badrul Anuar,Miss Laiha Mat Kiah +6 more
TL;DR: In this article, a case study of watermelon production of 10.3 kg PM2.5 eq−1, 9485.5 kg CO2 eq−ha−1 and 186,432 MJ primary energy was performed.
Journal ArticleDOI
Life cycle assessment to compare the environmental impacts of different wheat production systems
TL;DR: In this paper, the authors evaluated and compared the energy consumption and total environmental impacts of irrigated and rainfed wheat production in central Iran, Mahyar plain, and reported that the share of fossil-based resources in the implementation of agricultural activities in Iran is very high.
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.