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    A Method for Performance Evaluation of Project Based on Combining the Concept of Golden Triangle and Decision Making Techniques

    , M.Sc. Thesis Sharif University of Technology Shekari, Mohammad (Author) ; Mostafavi, Mostafa (Supervisor)
    Abstract
    In today’s highly competitive world, the countries with strong economies are able to produce their products at a lower price, better quality and at the right time in the market, therefore, in the performance evaluation of economic of the organizations and project management, several factors are involved; the most important are: time, price, and product quality. In this dissertation, a new method for performance evaluation in the field of project management based on combining the concept of the golden triangle of the project and the techniques available in decision science is presented. At first, three major areas of the golden triangle namely time, cost, and quality are selected for... 

    Development of Airport Capacity Management Model Based on Decision Support System

    , M.Sc. Thesis Sharif University of Technology Salimi, Mohammad (Author) ; Pourtakdoust, Hossein (Supervisor)
    Abstract
    Airports are one of the most important elements of the aviation system that provide the ground infrastructure that is required for enabling or flight across the globe. Master Planning is currently the dominant approach to airport strategic planning. However, history shows that this approach can often result in costly mistakes. Because there are many stakeholders with conflicting objectives, deep uncertainty about the future, and many potential strategies, planners often narrow their scope by using a single forecast for the future, leaving out alternative strategies, and excluding stakeholders, resulting in a Master Plan that quickly becomes obsolete and may be opposed by some stakeholders.... 

    An Integrated GIS and Multi-criteria Decision-making Approach for Site Selection of Offshore Wind Farms (Case Study: The Persian Gulf and the Sea of Oman)

    , M.Sc. Thesis Sharif University of Technology Mohammadi Jare Nasero, Yavar (Author) ; Abbaspour, Madjid (Supervisor) ; Mehdigholi, Hamid (Co-Supervisor)
    Abstract
    The use of clean energy sources has become increasingly popular around the world in recent years. One of the most important of these sources is wind energy. Due to the high wind potential in offshore areas than on land, this study uses the integration of multi-criteria decision-making methods and GIS to identify the best areas for developing offshore wind farms in the Persian Gulf and the Sea of Oman. Criteria applied in this study are divided into two categories: restrictive criteria, such as recommended transportation routes and anchored restricted areas, and technical criteria, such as wind speed and water depth. After removing the inappropriate areas using restrictive criteria, the... 

    Synergy of Energy Transition of Iran and China Under 25-year Cooperation Agreement

    , M.Sc. Thesis Sharif University of Technology Eslami, Mohammad Ali (Author) ; Maleki, Abbas (Supervisor)
    Abstract
    The Iran-China 25-year Cooperation Program on the further economic development particularly energy area signed on 27 March 2021 by Iran, which suffered from many years of political and economic isolation and China, the second global economy. Energy transition is an essential issue in both country's energy systems which calls for a medium energy carrier that will be the natural gas. China is seeking for new natural gas resources in order to achieve its ambitious net-zero goals and Iran has targeted 50% reduction in its energy intensity. The necessity of supplying the natural gas for Pakistan and China through the CPEC (China-Pakistan Economic Corridor) by Iran is an important criterion in the... 

    A Framework for Facilitating the Simultaneous Implementation of the SAFe 5.1 and ITIL 4

    , M.Sc. Thesis Sharif University of Technology Rouhafza, Reza (Author) ; Shokraneh Moghaddam, Shokraneh (Supervisor)
    Abstract
    One of the most widely used approaches for managing Agile product development in large software organizations is the Scaled Agile Framework (SAFe). Additionally, many organizations use ITIL as a framework for providing services around these products. Neither of these management methods has provided a precise opinion on the other's domain, which can create a realm of ambiguity when implementing both of these management approaches simultaneously. This research attempts to mitigate the ambiguities associated with the concurrent use of SAFe 5.1 and ITIL 4 management methods by proposing a framework to facilitate their implementation. In this study, after identifying the gaps between these... 

    An optimal path in a bi-criteria AGV-based flexible jobshop manufacturing system having uncertain parameters

    , Article International Journal of Industrial and Systems Engineering ; Volume 13, Issue 1 , 2013 , Pages 27-55 ; 17485037 (ISSN) Fazlollahtabar, H ; Mahdavi Amiri, N ; Sharif University of Technology
    2013
    Abstract
    We propose an approach for finding an optimal path in a flexible jobshop manufacturing system considering two criteria of time and cost. With rise in demands, advancement in technology and increase in production capacity, the need for more shops persists. Therefore, a flexible jobshop system has more than one shop with the same duty. The difference among shops with the same duty is in their machines with various specifications. A network is configured in which the nodes are considered to be the shops with arcs representing the paths among the shops. An automated guided vehicle functions as a material handling device through the manufacturing network. To account for uncertainty, we consider... 

    Application of a fuzzy analytical hierarchy process to the prediction of vibration during rock sawing

    , Article Mining Science and Technology ; Volume 21, Issue 5 , 2011 , Pages 611-619 ; 16745264 (ISSN) Mikaeil, R ; Ataei, M ; Yousefi, R ; Sharif University of Technology
    Abstract
    A new predictive model for evaluating the vibration of a sawing machine was developed using a new rock classification system. The predictors are machine parameters and a rock sawability index. The new rock classification system includes four major parameters of the rock: uniaxial compressive strength, abrasivity index, mean Moh's hardness, and Young's modulus. The FAHP approach was used when determining the weights of these parameters by six decision makers. Two groups of carbonate rocks were sawn using a fully-instrumented laboratory sawing rig at different feed rates and depths of cut. During the sawing trials system vibration was monitored as a measure of saw performance. Then, a new... 

    A prioritization model for locating relief logistic centers using analytic hierarchy process with interval comparison matrix

    , Article Knowledge-Based Systems ; Volume 86 , September , 2015 , Pages 173-181 ; 09507051 (ISSN) Bozorgi Amiri, A ; Asvadi, S ; Sharif University of Technology
    Elsevier  2015
    Abstract
    When natural disasters happen, relief logistic centers (RLCs) and the quality of their services become absolutely important. In other words, choosing proper locations for RLCs has a direct impact on operating costs and timeliness of responses to the rising demands. This paper aims at proposing a decision support system for prioritizing RLC's locations to facilitate providing emergency helps when natural disasters occur. The present study, focuses on considering availability, risk, technical issues, cost and coverage in locating RLCs. It is assumed that applying analytic hierarchy process (AHP) can facilitate the problem of locating these centers. The most important step in this process is... 

    Integration of simulation and fuzzy multi-attribute decision making for modelling and assessment of fuzzy parameters

    , Article International Journal of Industrial and Systems Engineering ; Volume 6, Issue 4 , 2010 , Pages 483-502 ; 17485037 (ISSN) Azadeh, A ; Seifoory, M ; Abbasi, M ; Sharif University of Technology
    2010
    Abstract
    This article introduces a methodology to integrate fuzzy multiattribute decision making (FMADM) and fuzzy simulation. According to this method, a fuzzy simulation method is applied to study the effect of different alternative on system's performance and decision criteria taking into account fuzzy inputs. Using a fuzzy analytical hierarchy process (FAHP) and the results of fuzzy simulation, a FMADM is conducted to select the best alternative. This article introduces how to incorporate fuzzy set theory with discrete-event simulation in order to model uncertain activity duration in simulating a realworld system, especially when insufficient or no sample data are available. A case study is... 

    Multi-objective optimization for sustainable development of the power sector: An economic, environmental, and social analysis of Iran

    , Article Energy ; Volume 161 , 2018 , Pages 493-507 ; 03605442 (ISSN) Atabaki, M. S ; Aryanpur, V ; Sharif University of Technology
    Elsevier Ltd  2018
    Abstract
    This paper aims to analyze Iran's long-term power sector development from economic, environmental, social, and sustainable perspectives. For this purpose, a linear programming model is developed, which includes three objective functions: minimization of costs, minimization of CO2 emissions, and maximization of created jobs. To provide a sustainable plan, analytical hierarchy process is employed to allocate expert-based weights to the objective functions. Moreover, to support the decision-makers, Pareto-optimal alternatives are explored by varying the weights of objectives. The multi-objective model is solved by applying a weighted method based on fuzzy membership functions. The results show... 

    A robust decision making framework for GEP of grid connected micro-power systems

    , Article 2007 Large Engineering Systems Conference on Power Engineering, LESCOPE'07, Montreal, QC, 10 October 2007 through 12 October 2007 ; January , 2007 , Pages 239-243 ; 9781424415830 (ISBN) Khodayar, M ; Ehsan, M ; Rahimikian, A ; Kamalinia, S ; Abbasi, E ; Sharif University of Technology
    2007
    Abstract
    In this paper a strategic planning framework is proposed for generation expansion planning of grid-connected micro-power systems. The proposed framework is composed of two different decision making techniques that results a robust planning approach compared to previous techniques to identify the feasible and efficient plans according to attributes and uncertain parameters considered in planning environment. The framework considers the robustness and risk exposure of different configurations according to uncertain parameters in the planning environment to select the plans which meet the objectives more efficiently with least risk exposure. The proposed methodology is implemented for... 

    Locating wind farm for power and hydrogen production based on Geographic information system and multi-criteria decision making method: An application

    , Article International Journal of Hydrogen Energy ; Volume 47, Issue 58 , 2022 , Pages 24569-24583 ; 03603199 (ISSN) Hosseini Dehshiri, S. S ; Hosseini Dehshiri, S. J ; Sharif University of Technology
    Elsevier Ltd  2022
    Abstract
    Hydrogen generation from renewable energy resources is considered as a suitable solution to solve the problems related to the energy sector and the reduction of greenhouse gases. The aim of this study is to provide an integrated framework for identifying suitable areas for the construction of wind farms to produce hydrogen. For this purpose, a combined method of Geographic Information System (GIS) and multi-criteria decision making (MCDM) has been used to locate the power plant in Yazd province. The GIS method in the present study consisted of two parts: constraints and criteria. The constraint section included areas that were unsuitable for the construction of wind farms to produce power... 

    A novel optimized design of a piezoelectric-driven 4-stage amplified compliant microgripper using a 2-step multi-objective algorithm

    , Article SN Applied Sciences ; Volume 4, Issue 4 , 2022 ; 25233971 (ISSN) Haghshenas Gorgani, H ; Shabani, S ; Honarmand, M ; Sharif University of Technology
    Springer Nature  2022
    Abstract
    Abstract: Advancements in microscale technologies have prompted a demand for high precision micro-manipulation. Microgrippers are the primary means of conducting micro-scale operations, and they significantly affect the procedure's performance. This paper presents a novel optimized design for compliant microgrippers, intending to enhance functionality and durability. The mainframe of the proposed microgripper is based on a compact flexure-based compliant structure with four stages of movement amplification. Experiments were designed based on the L25 Taguchi orthogonal arrays. The experiments were conducted using the finite element method in Abaqus 6.14 workbench. Range of motion and maximum... 

    Bi-objective optimization of a three-echelon multi-server supply-chain problem in congested systems: Modeling and solution

    , Article Computers and Industrial Engineering ; Volume 99 , 2016 , Pages 41-62 ; 03608352 (ISSN) Maghsoudlou, H ; Rashidi Kahag, M ; Akhavan Niakib. S. T ; Pourvaziri, H ; Sharif University of Technology
    Elsevier Ltd  2016
    Abstract
    A novel bi-objective three-echelon supply chain problem is formulated in this paper in which cross-dock facilities to transport the products are modeled as an M/M/m queuing system. The proposed model is validated using the epsilon constraint method when applied to solve some small-size problems. Since the problem belongs to the class of NP-hard and that it is of a bi-objective type, a multi-objective particle swarm optimization (MOPSO) algorithm with a new solution structure that satisfies all of the constraints is developed to find Pareto solutions. As there is no benchmark available in literature, three other multi-objective meta-heuristic algorithms called non-dominated ranking genetic... 

    Integrating spatial multi criteria decision making (smcdm) with geographic information systems (gis) for delineation of the most suitable areas for aquifer storage and recovery (asr)

    , Article Journal of Hydrology ; Volume 551 , 2017 , Pages 577-595 ; 00221694 (ISSN) Ahani Amineh, Z. B ; Hashemian, S. J. A.D ; Magholi, A ; Sharif University of Technology
    Elsevier B.V  2017
    Abstract
    Hamoon-Jazmoorian plain is located in southeast of Iran. Overexploitation of groundwater in this plain has led to water level decline and caused serious problems such as land subsidence, aquifer destruction and water quality degradation. The increasing population and agricultural development along with drought and climate change, have further increased the pressure on water resources in this region over the last years. In order to overcome such crisis, introduction of surface water into an aquifer at particular locations can be a suitable solution. A wide variety of methods have been developed to recharge groundwater, one of which is aquifer storage and recovery (ASR). One of the fundamental... 

    Generation expansion planning of stand-alone micro-power systems using MADM techniques

    , Article 42nd International Universities Power Engineering Conference, UPEC 2007, Brighton, 4 September 2007 through 6 September 2007 ; 2007 , Pages 68-72 ; 1905593368 (ISBN); 9781905593361 (ISBN) Khodayar, M. E ; Afsharnia, S ; Ehsan, M ; Kamalinia, S ; Sedighizadeh, M ; Sharif University of Technology
    2007
    Abstract
    In this paper, Analytic Hierarchy Process and Data Envelopment Analysis are introduced as multi attribute decision making techniques in planning of standalone micro-power systems. The objective of the planning framework is to select the best configuration and capacity of different generating technologies in micro-power systems to minimize certain economical and environmental attributes. The economical attributes are capital cost and net present cost and the environmental attribute is emission. The proposed framework is illustrated by a case study on a real network in northern region of Iran  

    A combination of MADM and genetic algorithm for optimal DG allocation in power systems

    , Article 42nd International Universities Power Engineering Conference, UPEC 2007, Brighton, 4 September 2007 through 6 September 2007 ; 2007 , Pages 1031-1035 ; 1905593368 (ISBN); 9781905593361 (ISBN) Kamalinia, S ; Afsharnia, S ; Khodayar, M. E ; Rahimikian, A ; Sharbafi, M. A ; Sharif University of Technology
    2007
    Abstract
    Distributed Generation (DG) can help in reducing the cost of electricity to the customer, relieve network congestion, provide environmentally friendly energy close to load centers as well as promote system technical characteristics such as loss reduction, voltage profile enhancement, reserve mitigation and many other factors. Furthermore, its capacity is also scalable and it can provide voltage support at distribution level. The planning studies include penetration level and placement evaluation which are influenced directly by DG type. Most of the previous publications in this field chose one or two preferred parameter as basic objective and implement the optimizations in systems. But due...