Nafiseh Shamsi Gamchi

Mitigating direct and indirect costs of unexpected pandemics: a parallel vaccination strategy utilizing agent-based simulation

Nafiseh Shamsi Gamchi, Maryam Esmaeili, Amir Hosein Afshar Sedigh

The prioritization of individuals for vaccination based on limited resources and decision-making time—primarily focusing on age groups—overlooks the broader impacts of lockdown policies on the economy and psychological well-being. This study emphasizes the need to draw lessons from epidemic disasters to inform …

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Counterfeiting From an Operations and Engineering Management Perspective

Nafiseh Shamsi Gamchi, Mehrdad Mohammadi, Luk N. Van Wassenhove, Reza Zanjirani Farahani

Counterfeiting poses a significant and growing threat to the global economy and has been examined through marketing, legal, manufacturing, and behavioral lenses. This paper introduces new directions for research from an Operations and Engineering Management (O&EM) perspective—including operations management, engineering management, and …

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An Integrated Queueing Model for Blood Delivery in Disaster Management

Atefeh Panahi, Amir Hosein Afshar Sedigh, Nafiseh Shamsi Gamchi

The problem of blood delivery has been a critical concern in past decades. However, the unsteady behavior of blood donors, along with the uncertainties associated with demands in a crisis imposes several challenges for resource management. In this research work, we analyze …

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A novel mathematical model for prioritization of individuals to receive vaccine considering governmental health protocols

Nafiseh Shamsi Gamchi, Maryam Esmaeili

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A novel vehicle routing problem for vaccine distribution using SIR epidemic model

Nafiseh Shamsi Gamchi, S. Ali Torabi, Fariborz Jolai

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ER Model Partitioning: Towards Trustworthy Automated Systems Development

Dhammika Pieris, Mehrotra S.C, Nafiseh Shamsi Gamchi

In database development, a conceptual model is created, in the form of an Entity-relationship (ER) model, and transformed to a relational database schema (RDS) to create the database. However, some important information represented on the ER model may not be transformed and …

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Supply chain coordination under revenue-sharing contract with value-added services considering risk-attitude of the customers

S. Ali Torabi, Nafiseh Shamsi Gamchi

In this paper, we address a dual-channel supply chain in which a manufacturer sells multiple products via both a direct channel (like an online market) and indirect channels (e.g., through some retailers). Different service contracts with different risk-attitudes are offered by different …

ir (code pays fourni par la source)

Supply chain coordination under revenue-sharing contract with value-added services considering risk-attitude of the customers

Nafiseh Shamsi Gamchi, S. Ali Torabi

In this paper, we address a dual-channel supply chain in which a manufacturer sells multiple products via both a direct channel (like an online market) and indirect channels (e.g., through some retailers). Different service contracts with different risk-attitudes are offered by different …

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An option contract for vaccine procurement using the SIR epidemic model

Nafiseh Shamsi Gamchi, S. Ali Torabi, Hamed Shakouri G.

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Vaccine Supply Management

Nafiseh Shamsi Gamchi, S. Ali Torabi

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Lean Healthcare

S. Ali Torabi, Shirin Haddad Pour, Nafiseh Shamsi Gamchi

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Cuckoo Optimization Algorithm for a Reliable Location-Allocation of Hubs among the Clients

Mohammad Mahdi Nasiri, Nafiseh Shamsi Gamchi, S. Ali Torabi

Hubs are critical elements of transportation networks. Location of hubs and allocation of demands to them are of high importance in the network design. The most important purpose of these models is to minimize the cost, but path reliability is also another …

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