Sustainable closed-loop supply chain network: Mathematical modeling and Lagrangian relaxation

Behrooz Khorshidvand; Hamed Soleimani; Mir Mehdi Seyyed Esfahani; Soheil Sibdari

Volume 8, Issue 1 , July 2021, , Pages 240-260

  This paper addresses a novel two-stage model for a Sustainable Closed-Loop Supply Chain (SCLSC). This model, as a contribution, provides a balance among economic aims, environmental concerns, and social responsibilities based on price, green quality, and advertising level. Therefore, in the first stage, ...  Read More

A multi-objective optimization model for multiple project scheduling and multi-skill human resource assignment problem based on learning and forgetting effect and activities' quality level

Milad Hematian; Mirmehdi Seyyedesfahani; Iraj Mahdavi; Nezam Mahdavi Amiri; Javad Rezaeian

Volume 7, Issue 2 , August 2020, , Pages 98-118

  One of the most important aspects of human resource management is the allocation of the workforce to activities. Human resource assignment to project activities for its scheduling is one of the most real and common issues in project management and scheduling. This becomes even more significant when human ...  Read More

Operations research and health systems: A literature review

Samar Shetaban; Mir Mehdi Seyyed Esfahani; Abbas Saghaei; Abbas Ahmadi

Volume 7, Issue 2 , August 2020, , Pages 240-260

  Todays, human health is in the best situation ever. The progress of vaccines, development of hospitals, new medicines, advanced medical equipment, and new treatments preventing death will place the health system indicators at its best state in all ages and centuries. In addition, healthcare is one of ...  Read More

Identifying and classifying the factors affecting risk in automobile hull insurance in Iran using fuzzy Delphi method and factor analysis

Zahra Shams Esfandabadi; Mir Mehdi Seyyed Esfahani

Volume 5, Issue 2 , December 2018, , Pages 84-96

  Automobile hull insurance has attracted much attention due to the high rate of vehicle applications in daily lives. Since purchasing these policies is optional in Iran and their premium rates are set competitively, a competition is formed among the insurance companies for attracting low risk drivers. ...  Read More