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Browsing Endüstri Mühendisliği Bölümü by Title

Browsing Endüstri Mühendisliği Bölümü by Title

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  • Analysis of an inventory system with emergency ordering option at the time of supply disruption 
    Demirci, Ece Zeliha; Poormoaied, Saeed (SPRINGERONE NEW YORK PLAZA, SUITE 4600 , NEW YORK, NY 10004, UNITED STATES, 2021-12)
    This paper studies a continuous-review stochastic inventory problem for a firm facing random demand and random supply disruptions. The supplier experiences operational (on) and disrupted (off) periods with exponentially ...
  • Chemotherapy appointment scheduling under uncertainty by considering workload balance among nurses 
    Gül, Serhat (PAMUKKALE UNIV, 2021)
    Balancing nurse workload while scheduling outpatient chemotherapy appointments under uncertainty is a challenging problem. In this study, a two-stage stochastic mixed-integer programming model is proposed for setting ...
  • Codon optimization: a mathematical programing approach 
    Kargar, Kamyar; Sen, Alper; Akgün, Esma; Pınar, Mustafa C. (OXFORD UNIV PRESS, 2020-07)
    otivation: Synthesizing proteins in heterologous hosts is an important tool in biotechnology. However, the genetic code is degenerate and the codon usage is biased in many organisms. Synonymous codon changes that are ...
  • Coordinated Inventory Replenishment and Outsourced Transportation Operations 
    Gurler, Ulku; Alp, Osman; Buyukkaramikli, Nasuh Cagdas (PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND, 2014)
    We consider a one-warehouse N retailers supply chain with stochastic demand. Inventory is managed in-house whereas transportation is outsourced to a 3PL provider. We develop analytical expressions for the operating ...
  • Coordinated Logistics: Joint Replenishment with Capacitated Transportation for a Supply Chain 
    Buyukkaramikli, Nasuh C.; Gurler, Ulku; Alp, Osman (WILEY-BLACKWELL, 111 RIVER ST, HOBOKEN 07030-5774, NJ USA, 2014)
    In this study, we consider the integrated inventory replenishment and transportation operations in a supply chain where the orders placed by the downstream retailer are dispatched by the upstream warehouse via an in-house ...
  • Designing intervention scheme for vaccine market: a bilevel programming approach 
    Demirci, Ece Zeliha; Erkip, Nesim Kohen (SPRINGER, 2020-06)
    Public-interest goods benefit consumers and also generate external benefits boosting societal welfare. Despite this characteristic of these goods, their level of consumption or production are generally well below the ...
  • Endogenous Effects of Hubbing on Flow Intensities 
    Taner, Mehmet R.; Kara, Bahar Y. (SPRINGER, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS, 2016)
    Location of hub facilities and the allocation decisions in transport networks endogenously affect both the flow intensities and the transportation costs. Since the introduction of the hub location problem to the operations ...
  • An Evolutionary Approach to Generalized Biobjective Traveling Salesperson Problem 
    Koksalan, Murat; Ozturk, Diclehan Tezcaner (PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND, 2017)
    We consider the generalized biobjective traveling salesperson problem, where there are a number of nodes to be visited and each node pair is connected by a set of edges. The final route requires finding the order in which ...
  • Finding All Nondominated Points of Multi-objective Integer Programs 
    Lokman, Banu; Koksalan, Murat (SPRINGER, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS, 2013)
    We develop exact algorithms for multi-objective integer programming (MIP) problems. The algorithms iteratively generate nondominated points and exclude the regions that are dominated by the previously-generated nondominated ...
  • Finding Highly Preferred Points for Multi-objective Integer Programs 
    Lokman, Banu; Koksalan, Murat (TAYLOR & FRANCIS INC, 530 CHESTNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA, 2014)
    This article develops exact algorithms to generate all non-dominated points in a specified region of the criteria space in Multi-Objective Integer Programs (MOIPs). Typically, there are too many non-dominated points in ...
  • Finding Nadir Points in Multi-objective Integer Programs 
    Koksalan, Murat; Lokman, Banu (SPRINGER, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS, 2015)
    We address the problem of finding the nadir point in a multi-objective integer programming problem. Finding the nadir point is not straightforward, especially when there are more than three objectives. The difficulty further ...
  • Folding-shearing: Shrinking and stretching sheet metal with no thickness change 
    Music, Omer; Allwood, Julian M.; Cleaver, Christopher J.; Loukaides, Evripides G. (ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2019)
    50% of all sheet metal is scrapped, mainly by trimming following deep-drawing. To combat this a novel process inspired by the mechanics of spinning is proposed and its feasibility is tested with a novel experimental rig. ...
  • An Interactive Algorithm to Find the Most Preferred Solution of Multi-objective Integer Programs 
    Lokman, Banu; Koksalan, Murat; Korhonen, Pekka J.; Wallenius, Jyrki (SPRINGER, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS, 2016)
    In this paper, we develop an interactive algorithm that finds the most preferred solution of a decision maker (DM) for multi-objective integer programming problems. We assume that the DM's preferences are consistent with ...
  • An Interactive Approach for Biobjective Integer Programs Under Guasiconvex Preference Functions 
    Ozturk, Diclehan Tezcaner; Koksalan, Murat (SPRINGER, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS, 2016)
    We develop an interactive algorithm for biobjective integer programs that finds the most preferred solution of a decision maker whose preferences are consistent with a quasiconvex preference function to be minimized. During ...
  • Inventory Control with Multiple Setup Costs 
    Alp, Osman; Huh, Woonghee Tim; Tan, Tarkan (INFORMS, 5521 RESEARCH PARK DR, SUITE 200, CATONSVILLE, MD 21228 USA, 2014)
    We consider an infinite-horizon, periodic-review, single-item production/inventory system with random demand and backordering, where multiple setups are allowed in any period and a separate fixed cost is associated for ...
  • Joint Capacity, Inventory, and Demand Allocation Decisions in Manufacturing Systems 
    Bayram, Vedat; Gzara, Fatma; Elhedhli, Samir (TAYLOR & FRANCIS INC, 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA, 2019)
    We study the demand, inventory, and capacity allocation problem in production systems with multiple inventory locations and a production facility operating under linear and concave costs. Independent stochastic demand from ...
  • A mixed-method optimisation and simulation framework for supporting logistical decisions during offshore wind farm installations 
    Barlow, Euan; Ozturk, Diclehan Tezcaner; Revie, Matthew; Akartunali, Kerem; Day, Alexander H.; Boulougouris, Evangelos (ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2018)
    With a typical investment in excess of 100 million for each project, the installation phase of offshore wind farms (OWFs) is an area where substantial cost-reductions can be achieved; however, to-date there have been ...
  • Optimal Sourcing From Alternative Capacitated Suppliers with General Cost Structures 
    Tan, Tarkan; Alp, Osman (PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND, 2016)
    Most manufacturers or retailers must procure items or services necessary for their businesses, in an environment that typically includes a number of competing suppliers with varying cost structures, price schemes, and ...
  • A Progressive Hedging Approach for Surgery Planning Under Uncertainty 
    Gul, Serhat; Denton, Brian T.; Fowler, John W. (2015)
    We propose a multistage stochastic mixed-integer programming formulation for the assignment of surgeries to operating rooms over a finite planning horizon. We consider the demand for and the duration of surgery to be random ...
  • Risk-averse hub location: Formulation and solution approach 
    Kargar, Kamyar; Mahmutoğulları, Ali İrfan (Elsevier Ltd, 2022-07)
    In this study, we present risk-neutral and risk-averse two-stage stochastic formulations for the uncapacitated multiple allocation p-hub median problem and discuss the impact of risk-aversion on the optimal solution. ...

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