Multi-objective two-stage grey transportation problem using utility function with goals

Multi-criteria feasibility assessment of the monorail transportation system in metu campus Tarighi, Amin; Sayın, Erol; Department of Industrial Engineering (2011) The overall objective of this thesis is to assess the financial, technical and social feasibility of investing in modern Automated People Movers (APM) transportation systems, generally known as monorails, in METU campus which presents a unique opportunity to fulfill the modern-day transportation needs of METU campus. This study complements the Presidency Office’s long term goal to integrate environmental, social and economic sustainability into the policies, practices and culture of the university and ultim...
Broadband Multilevel Fast Multipole Algorithm Based on an Approximate Diagonalization of the Green's Function Ergül, Özgür Salih (2015-07-01) We present a broadband multilevel fast multipole algorithm (MLFMA) for fast and efficient solutions of three-dimensional multiscale problems involving large objects with dense discretizations. The proposed solver is based on the approximate diagonalization of the Green's function using scaled spherical and plane waves, leading to stable interaction computations for arbitrarily short distances in terms of wavelength. Despite contradictory requirements on the scaling factor that limit the accuracy of the diag...
Incomplete-Leaf Multilevel Fast Multipole Algorithm for Multiscale Penetrable Objects Formulated With Volume Integral Equations Takrimi, Manouchehr; Ergül, Özgür Salih; ERTÜRK, VAKUR BEHÇET (2017-09-01) Recently introduced incomplete-leaf (IL) tree structures for multilevel fast multipole algorithm (referred to as IL-MLFMA) is proposed for the analysis of multiscale inhomogeneous penetrable objects, in which there are multiple orders of magnitude differences among the mesh sizes. Considering a maximum Schaubert-Wilton-Glisson function population threshold per box, only overcrowded boxes are recursively divided into proper smaller boxes, leading to IL tree structures consisting of variable box sizes. Such a...
Multi-item two-echelon spare parts inventory control problem with batch ordering in the central warehouse under compound Poisson demand Topan, E; Bayındır, Zeynep Pelin (Informa UK Limited, 2012-8) We consider a multi-item two-echelon spare part inventory system in which the central warehouse operates under an (nQ, R) policy and the local warehouses implement order-up-to S policy, each facing a compound Poisson demand. The objective is to find the policy parameters minimizing expected system-wide inventory holding and fixed ordering costs subject to an aggregate mean response time constraint at each warehouse. In this paper, we propose four alternative approximations for the steady state performance o...
Multi-item Two-echelon Spare Parts Inventory Control Problem with Batch Ordering in the Central Warehouse under Compound Poisson Demand Bayındır, Zeynep Pelin (null; 2011-08-30) Multi-item Two-echelon Spare Parts Inventory Control Problem with Batch Ordering in the Central Warehouse under Compound Poisson Demand Z. Pelin Bayindir, Department of Industrial Engineering, Middle East Technical University, Engin Topan We consider a multi-item spare part two-echelon inventory system in which the central warehouse operates under an (nQ,R) policy and the local warehouses implement order-up-to S policy, each facing a compound Poisson demand. The objective is to find the policy parameters...

Citation Formats

S. K. Roy, G. Maity, and G. W. Weber, “Multi-objective two-stage grey transportation problem using utility function with goals,” CENTRAL EUROPEAN JOURNAL OF OPERATIONS RESEARCH, pp. 417–439, 2017, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/52458.