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
A comparative of modeling techniques and life cycle assessment for prediction of output energy, economic profit, and global warming potential for wheat farms
TL;DR: In this article , the authors provided mathematical, artificial neural networks (ANNs), adaptive neuro-fuzzy inference system (ANFIS) methods to predict output energy, economic profit, and global warming potential (GWP) of wheat production.
Book ChapterDOI
Artificial neural networks and adaptive neuro-fuzzy inference system in energy modeling of agricultural products
TL;DR: In this chapter, the data collection process and energy analysis method of agricultural products are outlined step by step, and designs of ANN and ANFIS models are explained in complete detail.
Journal ArticleDOI
New method to assess the long-term role of wind energy generation in reduction of CO2 emissions - Case study of the European Union.
TL;DR: A new method is proposed that estimates a range of potential CO2 emissions abated by wind energy based on two dynamic displacement emission factors, which are periodically updated according to the evolution of the future energy mix.
Journal ArticleDOI
Investigating the efficiency of greenhouse production in Oman: A two-stage approach based on Data Envelopment Analysis and double bootstrapping
TL;DR: In this article, the authors investigated the performance of greenhouse production in the Sultanate of Oman in two-stages, the first stage is to estimate the efficiency of greenhouse farmers and pinpoint the wasted resources and the second stage aims to identify the contextual (socioeconomic and environmental) factors that influence greenhouse farms.
Journal ArticleDOI
Energy and environmental indices through life cycle assessment of raisin production: A case study (Kohgiluyeh and Boyer-Ahmad Province, Iran)
TL;DR: In this paper, the status of energy consumption and environmental impacts in the raisin production using life cycle assessment (LCA) approach was investigated using data collected from 50 grape producers in Dena county and Raisin production workshop in Yasuj county.
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.
Journal ArticleDOI
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.