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    Development of public cloud manufacturing markets: a mechanism design approach

    , Article International Journal of Systems Science: Operations and Logistics ; 2022 ; 23302674 (ISSN) Delaram, J ; Houshamand, M ; Ashtiani, F ; Fatahi Valilai, O ; Sharif University of Technology
    Taylor and Francis Ltd  2022
    Abstract
    Online manufacturing markets are new emerging types of markets that are spreading in the shade of public Cloud Manufacturing. This paper introduces a public Cloud Manufacturing market and denotes its differences from a private one. Public Cloud Manufacturing enables service-oriented manufacturing models for everyone in society. The prosperity of such market is tied to appropriate matching between providers to consumers. This paper elaborates on a mechanism to prescribe an appropriate allocation between resources and demands in this public market. The mechanism exploits the VIKOR method to develop preference lists for providers and consumers, the method also is augmented by the Intuitionistic... 

    Depicting additive manufacturing from a global perspective; Using Cloud manufacturing paradigm for integration and collaboration

    , Article Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture ; Volume 229, Issue 12 , September , 2015 , Pages 2216-2237 ; 09544054 (ISSN) Valilai, O. F ; Houshmand, M ; Sharif University of Technology
    SAGE Publications Ltd  2015
    Abstract
    Globalization is one of the widely considered factors in today's manufacturing industries. This paradigm may be adopted for new technologies such as additive manufacturing. Additive manufacturing has been identified as an innovative manufacturing technology in recent years. The characteristics of this manufacturing technology, especially its support for quick design to manufacturing, have dominated it as an efficient generation of manufacturing techniques for today's global manufacturing paradigm. This article discusses the requirements and necessities of additive manufacturing with respect to a globalized perspective. Considering the two major requirements studied as integration of... 

    Stable allocation of services in public cloud manufacturing platforms: A game theory view

    , Article 30th International Conference on Flexible Automation and Intelligent Manufacturing, FAIM 2021, 7 September 2021 through 10 September 2021 ; Volume 55, Issue C , 2021 , Pages 306-311 ; 23519789 (ISSN) Delaram, J ; Houshamnd, M ; Ashtiani, F ; Fatahi Valilai, O ; Sharif University of Technology
    Elsevier B.V  2021
    Abstract
    With unbounding the manufacturing resources and capabilities from shopfloors and being available as on-demand services for everyone who needs, the service allocation problem becomes critical. Despite of private Cloud Manufacturing platforms in which the service allocation problem is an optimization matching problem, in public Cloud Manufacturing platforms the service allocation problem is a matching game between manufacturing providers and consumers. This is a complex form of games that has two sides, one side is the players that has manufacturing resources and capabilities and the other side is the players who want to receives such services. In this paper, we present a matching game model... 

    A matching mechanism for public cloud manufacturing platforms using intuitionistic Fuzzy VIKOR and deferred acceptance algorithm

    , Article International Journal of Management Science and Engineering Management ; Volume 16, Issue 2 , 2021 , Pages 107-122 ; 17509653 (ISSN) Delaram, J ; Fatahi Valilai, O ; Houshamand, M ; Ashtiani, F ; Sharif University of Technology
    Taylor and Francis Ltd  2021
    Abstract
    Online manufacturing platforms are spreading in the manufacturing industry in the shade of Cloud Manufacturing systems. The paper manipulates a matching mechanism for public Cloud Manufacturing platforms based on the Intuitionistic Fuzzy Sets Theory, VIKOR method, and Deferred Acceptance algorithm. The VIKOR method provides a rational, scientific, and systematic approach to enable providers and consumers to evaluate the attributes of each other and develop their preference lists. The method is augmented by the Intuitionistic Fuzzy Sets Theory to grasp the high level of vagueness and uncertainty in the process of preference list development. The utilization of Deferred Acceptance algorithm... 

    Multi-phase matching mechanism for stable and optimal resource allocation in cloud manufacturing platforms Using IF-VIKOR method and deferred acceptance algorithm

    , Article International Journal of Management Science and Engineering Management ; Volume 17, Issue 2 , 2022 , Pages 103-111 ; 17509653 (ISSN) Delaram, J ; Houshmand, M ; Ashtiani, F ; Fatahi Valilai, O ; Sharif University of Technology
    Taylor and Francis Ltd  2022
    Abstract
    Public platforms are one of the most important Cloud Manufacturing modes. Public platforms enable an environment for manufacturers and demanders to freely and directly connect with each other. Exploiting the high potentials of public platforms depends on final matching. This paper has developed a multi-phase matching mechanism for stable and optimal resource allocation in public platform. The proposed mechanism grades the demanders using an intuitionistic fuzzy VIKOR method using three measures of quality, time, and sustainability. Then, the mechanism clusters the demanders based on these three measures; and finally, allocates the clusters using the Deferred Acceptance (DA) algorithm to the... 

    Adaptive capacity management in cloud manufacturing hyper-network platform: Case of COVID-19 equipment production

    , Article International Journal of Management Science and Engineering Management ; Volume 17, Issue 4 , 2022 , Pages 239-258 ; 17509653 (ISSN) Rezapour Niari, M ; Eshghi, K ; Fatahi Valilai, O ; Sharif University of Technology
    Taylor and Francis Ltd  2022
    Abstract
    Cloud Manufacturing (CMfg) is a service-oriented manufacturing (SOM) paradigm that provides a dynamic, scalable, and virtualized working ecosystem. The CMfg collaborative structure can be modeled as a hyper-network-based service-demand matching architecture. It is enriched with quality of service (QoS) characteristics to produce customized products in a stable and reliable network. This stability should be considered in the overall manufacturing network mechanism. This paper has provided adaptive strategies utilizing available resources and capacities to enhance the system’s stability and reliability against the unexpected events. The capabilities of the enhanced framework are utilized to... 

    A platform for optimisation in distributed manufacturing enterprises based on cloud manufacturing paradigm

    , Article International Journal of Computer Integrated Manufacturing ; Vol. 27, Issue 11 , 2 November , 2014 , pp. 1031-1054 ; ISSN: 0951192X Fatahi Valilai, O ; Houshmand, M ; Sharif University of Technology
    Abstract
    The synergy of fundamental factors like changes in governmental policies, global expansions of the manufacturing industries and improvements in technology related to reliability of manufacturing information flow have created the global manufacturing revolution in the first years of the twenty-first century. Although the concept of global manufacturing enterprise has created benefits and opportunities for todays manufacturing enterprises, it has enforced enterprises to endure costs to adopt the global manufacturing solutions. Besides, considering the researches aimed to enable the global manufacturing paradigm, there is still a need for efficient solutions to fulfil the global product... 

    A Novel Heuristic Mathematical Model for Cloud Manufacturing Service Composition Problem Focusing on Benders Algorithm

    , M.Sc. Thesis Sharif University of Technology Hosseini, Fatemeh (Author) ; Fatahi Valilai, Omid (Supervisor)
    Abstract
    Today, Information Technology is a critical aspect for the development of the modern manufacturing industry. Network technology can connect customers, partners, and the general public to work together and provide resources across the supply chain to improve product performance. To meet the goal of higher performance with lower operational costs and shorter delivery times for new products, many network-driven or service-oriented models have been proposed. These models focus more on communicating with dispersed partners rather than Integrated management and generalization of dynamic resource partnerships. But, cloud manufacturing has been recognized in the literature for generating computing... 

    A Framework for the Definition, Elaboration and Optimization of Service levels in Cloud Manufacturing Network, Considering Service Composition in the Transportation and Logistics

    , M.Sc. Thesis Sharif University of Technology Sabaei, Aysan (Author) ; Fatahi Valilai, Omid (Supervisor)
    Abstract
    Regarding to emergence of the globalization concepts in manufacturing, technology and information technology has come to aid of the organizations to expand communication across the globe, in order that companies can overcome many of their deficiencies in this way. To achieve this goal, Cloud Manufacturing (CMfg) system have been investigated, while today the CMfg is a new manufacturing paradigm and is one of the dominant concepts in manufacturing industries. Regarding to the nature of the cloud, the resources used to meet the customer demands are not necessarily concentrated in a specific geographic location, or the demand of a customer may not be satisfied with a distinct service, as a... 

    Optimization of Service Composition Problem in Cloud Manufacturing

    , M.Sc. Thesis Sharif University of Technology Kerdegari, Adeleh (Author) ; Eshghi, Koroush (Supervisor)
    Abstract
    Service composition is an important problem in the cloud manufacturing paradigm in which, after receiving a customer request, combination of cloud services are determined for accomplishment of customer needs. Actually, customer need is decomposed to some distinct tasks such that each one is done by a company or a group of them. In this way, virtual and cloud-based production line can be developed based on requirements of customers. The ultimate goal of service composition is optimum assignment of tasks to factories while some objective functions (e.g. minimization of cost and time) and constraints (e.g. minimum reliability and availability) are considered. In this study, integer programming... 

    Mutual Operation and Routing Problem Considering Customer Clustering in Cloud Manufacturing

    , M.Sc. Thesis Sharif University of Technology Assari, Mozhgan (Author) ; Fattahi Valilai, Omid (Supervisor)
    Abstract
    Regarding to globalization concept, all companies around the world can communicate with each other, share their technologies and also compensate their production deficiencies. To achieve this goal, cloud manufacturing system have been proposed and investigated. One of the most important issues in cloud manufacturing is focusing on the service composition, in which a composition of cloud services is determined to meet customer demands. Also due to the distribution of the resources in the different points and geographic locations, considering to the production and routing which previously have been studied in the classical space is very important. Considering this, the problem is as follows:... 

    An Optimization Model for Cloud Service Composition and Matching of Mutual Operation and Routing Outsourcing in Cloud Supply Networks

    , M.Sc. Thesis Sharif University of Technology Jamshidi, Mohammad Reza (Author) ; Fatahi, Omid (Supervisor)
    Abstract
    With the development of science and technology and its application in IT (e.g. internet, intranet and URL) the sharing of manufacturing resources reaches higher research attention, where resource virtualization enables new possibilities in terms of collaboration. As a result of these changes, with the intention of sharing optimum allocation of cloud manufacturing resource and capability among service providers and service users, the concept of service composition was introduced. Cloud services can be combine to build virtual manufacturing chain, so a strategy focusing on the evaluation and selection of virtual manufacturing resources to fulfill given services is fundamental exercise to... 

    A new Model for Mutual Logistic and Operation Outsourcing Considering Flexibility in Operation Process Chart (OPC) Selection

    , M.Sc. Thesis Sharif University of Technology Malek, Mahsa (Author) ; Fatahi Valilai, Omid (Supervisor)
    Abstract
    Cloud Manufacturing is a new paradigm which under development and has been introduced as one of the promising models for providing ubiquitous, convenient, on-demand network access to a shared pool of configurable manufacturing resources (e.g, networks, servers, facilities, applications, robots, machines and services) that can be rapidly provisioned with minimal management effort and service provider’s interaction. Cloud Manufacturing is defined based on Cloud Computing. Like the Cloud Computing, Cloud Manufaturing offers a service-oriented architecture that is based on information technology (IT) in which each manufacturing resources is expressed as a service. For providing a... 

    Provide a Model Providing IT-based Services in the Cloud Manufacturing Requirements with Regard to ITIL

    , M.Sc. Thesis Sharif University of Technology Karimnejad, Mohsen (Author) ; Fatahi Valilai, Omid (Supervisor)
    Abstract
    With the advent of the globalization paradigm, the industrial interactions among manufacturing companies have become easier, and the possibility of sharing of the resources among them has been introduced. This issue, coupled with the increasing diversity of customer needs, has led to a change in business models of manufacturing industries and because of that, in the field of globalized manufacturing, a new paradigm called cloud manufacturing has been proposed in which service-orientation is one of the main features. Despite of the extensive studies on cloud manufacturing, the lack of a framework that, based on the service-orientation, determines the improving of manufacturing processes to... 

    A Novel Service Selection in Cloud Manufacturing System Considering Uncertainty and Strategic Perspective

    , M.Sc. Thesis Sharif University of Technology Abbaspour, Solmaz (Author) ; Fatahi Valilai, Omid (Supervisor)
    Abstract
    Nowadays. global competition in manufacturing industries is increasing dramatically. In fact, the traditional production systems are not able to satisfy the needs of customers whom their production complexity is increasing. In order to fulfill the mentioned challenge, a new manufacturing system entitled “cloud Manufacturing” is introduced. In this new paradigm, manufacturing resources and capabilities of production are virtualized through internet and in the whole life cycle of manufacturing and production. These resources are available for end-users via the internet based on an XaaS (everything as aservice) approach. Moreover, although there are some limitations when manufacturing services... 

    An Agent-based Architecture for Reverse Logistics in Cloud Manufacturing

    , M.Sc. Thesis Sharif University of Technology Hamidi Moghaddam, Simin (Author) ; Houshmand, Mahmoud (Supervisor)
    Abstract
    Cloud Manufacturing (CMfg) which is one of the newest and important business models, can have a great effect in enterprises' success by sharing information and production resources among them. Due to the semi-made products which should be transferred between distributed production centers, Logistics and Transportation concept in CMfg are very important. Reverse Logistics (RL) that is the flow of used products from customer to manufacturer, by its role in recycling and proper disposal of components, has a great impact on industry effect on environment and helps enteprises to make better profit. Despite this importance, working on RL in CMfg has not been paid attention to in former researches.... 

    A Service Matching Model in Cloud Manufacturing Systems Considering the Extended Relationship Among Supply Demand Services Focusing on Metaheuristic Algorithms

    , M.Sc. Thesis Sharif University of Technology Ganji, Narjess (Author) ; Fatahi Valilai, Omid (Supervisor)
    Abstract
    In recent years, economy globalization has led to a major focus on the needs of customers, Moreover globalization has resulted in geographically distributed suppliers across the globe. In such a space, using cloud manufacturing as one of the novel technologies in manufacturing that deals with resource management has been more and more taken into consideration. one of the most important issues in cloud manufacturing is service composition, in which, after receiving customer’s demand, a combination of cloud services is provided to meet customer’s demand. In fact, the customer's need is decomposed in different tasks, each of which is carried out by one (or more) manufacturing plant. the purpose... 

    A New Model for Vehicle Routing Problem (VRP) Considering Cross Docking Services in Cloud Manufacturing Systems

    , M.Sc. Thesis Sharif University of Technology Dejkam, Rahil (Author) ; Fatahi Valilai, Omid (Supervisor)
    Abstract
    Nowadays, the modern manufacturing dramatically has changed due to the intense global competition and the globalization of economics, resources, and rapid progress in manufacturing systems, information, computer and information management. Cloud manufacturing systems are a new network-based manufacturing paradigm which by utilizing cloud computing and service generation enables technologies to transfer manufacturing resources into manufacturing services. Moreover, recent researches have shown that security, reliability, and quality are enhanced by cloud computing systems. In cloud manufacturing systems, resources that are located in different geographic points enable the distribution of... 

    Simulation-based Service Allocation in Cloud Manufacturing Environments for a Specific Product Type Considering Focusing on Uncertainty in Services' Supply Demand

    , M.Sc. Thesis Sharif University of Technology Rezghi, Atieh (Author) ; Fatahi Valilai, Omid (Supervisor)
    Abstract
    Nowadays, both academic and industrial environment have come to the conclusion that recent manufacturing paradigms are probably no longer applicable to the ever-changing today’s business environments. That is why manufacturing is moving gradually from production-oriented to service-oriented approaches. Service-oriented manufacturing results in a variety of services through a product life cycle which create an abundance of high value-added markets promoting efficient collaboration and amazing innovation. Cloud Manufacturing as an intelligent newly developed service-oriented manufacturing paradigm provides platforms of shared and interconnected distributed manufacturing resources and... 

    A Novel Digital Dentistry Platform Based on Cloud Manufacturing Paradigm

    , Ph.D. Dissertation Sharif University of Technology Valizadeh, Siavash (Author) ; Houshmand, Mahmoud (Supervisor) ; Fatahi Valilai, Omid (Supervisor) ; Vasegh, Zahra (Supervisor)
    Abstract
    This thesis has developed a novel platform for digital dentistry which facilitates the interoperability among different digital components and improves digital workflow in a collaborative environment. The platform is inspired by the cloud manufacturing paradigm for enabling the interoperability and collaboration management and also applies the DICOM standard to improve the integration for the coordination among the different stakeholders for better sharing of their resources while they are geographically distributed. The paper has proposed the application of the PACS concept to include design, implant planning, process planning and production workstations. The paper has conducted a...