Sensitivity analysis of criteria to optimize wind farm localizing: A case study

2019 ◽  
Vol 44 (3) ◽  
pp. 294-312 ◽  
Author(s):  
Mostafa Rezaei ◽  
Ali Mostafaeipour ◽  
Mohammad Saidi-Mehrabad ◽  
Mojtaba Qolipour ◽  
Ahmad Sedaghat ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Wind Farm ◽  
Distribution Networks ◽  
Data Envelopment Analysis Model ◽  
Dual Model ◽  
Analysis Model ◽  
Factors Affecting ◽  
Site Localization ◽  
The City

The objective of this study was to perform a sensitivity analysis on the factors affecting wind site localization. A case study is selected based on 13 cities in the province of Fars in Iran which is equally applicable in any other wind sites. Then, the cities are ranked using the dual form of the data envelopment analysis model. Next, six criteria are adopted including wind conditions, population, Available Land condition, distance to distribution networks, rate of natural disasters, and the cost of land. In the sensitivity analysis of each criterion, first, the criterion under analysis is omitted from the model, and then the dual model is applied again to obtain a new ranking. Evaluating the results of the ranking for 13 studied cities indicate that the city of Shiraz is just sensitive to the population criterion and fell 11 places in the ranking by omitting this criterion. But the city is insensitive to any other criteria.

scholarly journals New public spaces as the basic nodes for development of new city areas (case study of Kronstadt, Russia)

2020 ◽  
Vol 164 ◽  
pp. 04026
Author(s):  
Olga Kokorina ◽  
Dmitry Zinenkov ◽  
Tamara Datsuk
Keyword(s):  
Metropolitan Area ◽  
Public Spaces ◽  
Factors Affecting ◽  
Current State ◽  
New Public ◽  
Independent Unit ◽  
New City ◽  
The City ◽  
Further Development

The article presents research materials and analysis of factors affecting the creation of new nodes of public spaces, as starting points for the development of Kotlin Island and the city of Kronstadt. Their current state and problems, resources and opportunities are described. Currently, there is a process of rethinking the value of the coastal territories of Kronstadt, the potential of which is not realized. One of the possible ways to solve this problem is to increase the use of coastal territories by creating tourism and public-business infrastructure along the coastline. Kronstadt has a number of unique characteristics, the use of which can transfer it from degrading to developing. This is possible by creating a polycentric model in the city - new growth points, as well as rethinking the value of abandoned and coastal territories. This approach will not only increase funding, attract more people, provide a sufficient number of jobs, but also subsequently create conditions for the further development of the city as an independent unit - the center of the St. Petersburg metropolitan area.

scholarly journals A New DEA Model for Evaluation of Supply Chains: A Case of Selection and Evaluation of Environmental Efficiency of Suppliers

Symmetry ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 565 ◽  
Author(s):  
Krmac ◽  
Djordjević
Keyword(s):  
Sensitivity Analysis ◽  
Complex Problem ◽  
Environmental Efficiency ◽  
Data Envelopment Analysis Model ◽  
Data Envelopment ◽  
Analysis Model ◽  
Chain Management ◽  
Dea Model ◽  
Multi Stage ◽  
Stage System

Supply Chain Management (SCM) represents an example of a complex multi-stage system. The SCM involves and connects different activities, from customer’s orders to received services, all with the aim of satisfying customers. The evaluation of a particular SCM is a complex problem because of the internally linked hierarchical activities and multiple entities. In this paper, the introduction of a non-radial DEA (Data Envelopment Analysis) model for the evaluation of different components of SCM, primarily in terms of sustainability, is the main contribution. However, in order to confirm the novelty and benefits of this new model in the field of SCM, a literature review of past applications of DEA-based models and methods are also presented. The non-radial DEA model was applied for the selection and evaluation of the environmental efficiency of suppliers considering undesirable inputs and outputs resulting in a better ranking of suppliers. Via perturbation of the data used, behavior, as well as the benefits and weaknesses of the introduced model are presented through sensitivity analysis.

Uncertain SBM data envelopment analysis model: A case study in Iranian banks

2020 ◽  
Author(s):  
Mohammad Jamshidi ◽  
Masoud Sanei ◽  
Ali Mahmoodirad ◽  
Farhad Hoseinzadeh Lotfi ◽  
Ghasem Tohidi
Keyword(s):  
Data Envelopment Analysis ◽  
Data Envelopment Analysis Model ◽  
Data Envelopment ◽  
Analysis Model

Uncertain RUSSEL data envelopment analysis model: A case study in iranian banks

2019 ◽  
Vol 37 (2) ◽  
pp. 2937-2951 ◽  
Author(s):  
Mohammad Jamshidi ◽  
Masoud Saneie ◽  
Ali Mahmoodirad ◽  
Farhad Hoseinzadeh Lotfi ◽  
Ghasem Tohidi
Keyword(s):  
Data Envelopment Analysis ◽  
Data Envelopment Analysis Model ◽  
Data Envelopment ◽  
Analysis Model

Factors affecting farmers’ decisions to participate in direct marketing: A case study of cherry growers in the Kemalpasa District of Izmir, Turkey

2016 ◽  
Vol 32 (4) ◽  
pp. 291-305 ◽  
Author(s):  
Hakan Adanacioglu
Keyword(s):  
Direct Marketing ◽  
Marketing Channels ◽  
Marketing Strategies ◽  
Analysis Model ◽  
Gross Margin ◽  
Factors Affecting ◽  
Ordinal Logistic Regression Analysis ◽  
Cherry Orchard ◽  
The Subject

AbstractThe objective of this study is to explore the main factors that drive decisions of farmers to sell their products directly to consumers through farm direct marketing channels. A case study on cherry growers on the subject of direct marketing, which is one of the alternative marketing options in agricultural products marketing for farmers, is examined in this study. In addition, further suggestions are put forward on how to improve the use of direct marketing strategies by farmers in Turkey. An ordinal logistic regression analysis model was used to analyze the effects of agricultural businesses and demographic features on the tendency of growers to choose direct marketing channels in cherry selling. According to these model results, the cherry farming experience of the growers, the size of the cherry orchard, the level of specialization in cherry production, and the gross margin per hectare for cherry production have a statistically significant impact on the tendency of the growers to choose direct marketing channels in cherry selling. In particular, the growers whose experience is more than 20 yr, the farms that are semi-specialized, the farms providing a gross margin of more than US$5506 ha−1, and the farms having a cherry orchard between 1 and 2 ha in size were determined to have more of a tendency for direct marketing. These results show that owners of medium-sized farms are more interested in direct marketing. According to the interviewed cherry growers, the most important factor limiting their participation in direct marketing is that there are no organizations that will help them meet their direct marketing goals and build direct marketing arrangements between themselves and their consumers.

scholarly journals Study on the Sharing Transportation Based on Game Theory

2021 ◽  
Vol 13 (16) ◽  
pp. 9347
Author(s):  
Guanqiao Pan ◽  
Hongchao Jiang ◽  
Qianhui Jin ◽  
Tianyi Zhao ◽  
Jiajun Wang ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Distribution Center ◽  
Order Quantity ◽  
Analysis Model ◽  
Allocation Model ◽  
Game Situation ◽  
Logistics Enterprises ◽  
Multi Agent ◽  
Reducing Costs ◽  
The City

In order to solve the problems of mismatch between transportation resources and order volume in logistics transportation, we propose a cooperative pattern called sharing transportation to solve this problems. In this pattern, several logistics enterprises or alliances cooperate with each other and share transportation resources to achieve the goal of reducing costs and increasing income. In this paper, we set the application scene of sharing transportation to the section from the distribution center to the service outlets in the city. We first put forward the judgment function in the analysis model of cooperative pattern, and the possible cooperative pattern is divided into three kinds by constructing and solving the replication dynamic equation. Then we proposed the income allocation model by considering the functions of order quantity and overall income. Moreover, the proposed models are extended to the multi-agent game situation to realize the sharing transportation of multiple enterprises. Finally, we use the example simulation and sensitivity analysis to verify the rationality of the model. This paper provides a new idea for how to integrate the surplus resources to increase the profit in the process of logistics transportation.

scholarly journals Uniformization of frontiers in non-radial ZSG-DEA models: an application to airport revenues

2010 ◽  
Vol 30 (1) ◽  
pp. 175-193 ◽  
Author(s):  
Aline Bandeira de Mello Fonseca ◽  
João Carlos Correia Baptista Soares de Mello ◽  
Eliane Gonçalves Gomes ◽  
Lidia Angulo Meza
Keyword(s):  
Data Envelopment Analysis ◽  
Theoretical Approach ◽  
Approximate Algorithm ◽  
Data Envelopment Analysis Model ◽  
Data Envelopment ◽  
Analysis Model ◽  
Dea Models ◽  
Weights Restrictions ◽  
Zero Sum

We propose in this paper an extension to the Zero Sum Gains Data Envelopment Analysis model (ZSG-DEA). The proposed approach takes into account, simultaneously, non-radial projections and cone-ratio weights restrictions. We developed an iterative approximate algorithm to solve this model, as in the case study it is oriented only to the constant sum output. The theoretical approach is applied to the concession of discounts and surcharges problem, in terms of airport fees.

scholarly journals Reconstructing Maritime Incidents and Accidents Using Causal Models for Safety Improvement: Based on a Case Study

2021 ◽  
Vol 9 (12) ◽  
pp. 1414
Author(s):  
Lucjan Gucma ◽  
Andrej Androjna ◽  
Kinga Łazuga ◽  
Peter Vidmar ◽  
Marko Perkovič
Keyword(s):  
Human Error ◽  
Transport Systems ◽  
Analysis Model ◽  
Marine Transport ◽  
Sequence Of Events ◽  
Safety Improvement ◽  
A Chain ◽  
Simple Systems ◽  
The City

No advance in navigation has yet to prevent the occurrence of accidents (incidents are always implied when we discuss accidents) at sea. At the same time, advances in accident models are possible, and may provide the basis for investigations and analyses to help prevent future adverse events and improve the safety of marine transport systems. In such complex socio-technical systems models that treat accidents as the result of a chain or sequence of events are used most commonly. Such models are well suited to damage caused by failure of physical components in relatively simple systems. Although these often include methods for modeling human error, they do not cover broader aspects related to the management of the organization using the means of transport itself (shipowners) nor errors that may occur in the design phase. In particular, they do not cover changes in the systems over time. The paper presents accident investigation approaches and uses a modified causal model to analyze an incident that occurred in January 2019 on the city ferry in Świnoujście. The results of the analysis were used to provide guidelines for increasing safety at the crossing and to evaluate the accident analysis model used. Additionally, incidentally, through the study of this case we uncovered a problem in communication among stakeholders that unnecessarily complicates the models for the models for the improvement of safety.

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