Now showing items 1-20 of 23

    • Computational methods for congestion toll pricing models 

      Hearn, Donald W.; Yildirim, Mehmet Bayram; Ramana, M. V.; Bai, L. H. (IEEE Intelligent Transportation Systems, 2001-08)
      In earlier work a toll pricing framework for congestion pricing has been developed for both fixed and elastic demand traffic assignment models as an alternative to traditional marginal social cost pricing. Within the ...
    • A toll pricing framework for networks with advanced traveler information systems 

      Yildirim, Mehmet Bayram; Gupta, Amit (2004)
      In this paper, we propose a toll pricing framework for a stochastic multimode tra±c assignment problem. This model assumes that there are two types of users on the network: those who have information about the network ...
    • A global learning experience in supply chain logistics management 

      Yildirim, Mehmet Bayram; Barut, Mehmet; Kilic, Kemal (2004)
      Global competition created multinational supply chains where raw materials from different countries are manufactured in a country, marketed in another, and consumed by consumers in different countries so that cost ...
    • A neuro-genetic algorithm for parallel machine scheduling to determine the number of machines and priority scheduling rules 

      Yildirim, Mehmet Bayram; Barut, Mehmet; Cakar, Tarik (2004)
      In this paper, we propose a neuro-genetic artificial neural network framework to achieve certain targeted productivity measures/ performance values in a flow shop with parallel processors (resources) at each stage. The ...
    • A material handling scheduling system in an agent based environment 

      Thomas, S.; Krishnan, Krishna K.; Yildirim, Mehmet Bayram (2004)
      Agent based manufacturing systems are being developed to model and develop control strategies. Material handling systems when modeled as part of agent based system require new strategies for bidding. This paper describes ...
    • A material handling scheduling system in an agent based environment 

      Krishnan, Krishna K.; Jithavech, Id; Nayak, Chandan N.; Yildirim, Mehmet Bayram; Thomas, S. (2005)
      Adapting changes to satisfy demand is a must for any firm to survive in competitive environment. Changes narrate foremost to manufacturing environment which are dynamic and stochastic. In any job shop environment, material ...
    • Data collection framework on energy consumption in manufacturing 

      Drake, Rebekah; Yildirim, Mehmet Bayram; Twomey, Janet M.; Whitman, Lawrence E.; Ahmad, Jamal S.; Lodhia, Prashant (2006)
      In this paper, we propose a framework to characterize the energy consumption of machines and their subcomponents (e.g., spindle, coolant pump, controller, heater, hydraulic system in injection molding machine, motors in ...
    • A multi-objective model for power generation expansion planning 

      Masud, Abu S.M.; Meza, Jose L. Ceciliano; Yildirim, Mehmet Bayram (2007)
      This paper describes and evaluates a multi-objective generation expansion model that includes aspects such as incorporation of four objectives to generate the expansion alternatives, importance given to renewable ...
    • Analysis of material handling scheduling using simulation 

      Jithavech, Id; Krishnan, Krishna K.; Yildirim, Mehmet Bayram (2007)
      This paper presents a new due date driven Material Handling Rule Priority Index for material handling equipment scheduling strategy. The development of an agent based material handling equipment control strategy using ...
    • Nanofiber Fabrication and Characterization for the Engineering Education 

      Asmatulu, Ramazan; Yildirim, Mehmet Bayram; Khan, Waseem Sabir; Adeniji, Adebayo; Wamocha, Humphrey Lusenaka (2007)
      Electrospinning is a novel process of producing sub-micron and nano-sized fibers that consist of higher physical properties (e.g., surface area, porosity and flexibility). In a typical electrospinning process, a jet is ...
    • Genetic algorithm to solve a multi-objective scheduling problem 

      Mouzon, Gilles C.; Yildirim, Mehmet Bayram (Wichita State University. Graduate School., 2007-04-27)
      Energy is expensive and a potential way to reduce energy consumption may be through using intelligent scheduling techniques. In this paper, we propose a genetic algorithm to solve a single machine scheduling problem where ...
    • CNT Reinforced Nanocomposite Fiber Fabrication for Undergraduate Students 

      Asmatulu, Ramazan; Khan, Waseem Sabir; Yildirim, Mehmet Bayram (2008)
      The research, development and teaching of nanofiber fabrication and characterization have recently gained much attention due to their unique properties and potential applications in various fields, such as medical, ...
    • Synthesizing Magnetic Nanocomposite Fibers by Electrospinning method 

      Asmatulu, Ramazan; Khan, Waseem Sabir; Nguyen, K.D.; Yildirim, Mehmet Bayram (2008)
      Flexible magnetic nanocomposite fibers were produced by electrospinning method using a polymeric solution containing poly(acrylonitrile) and magnetite nanoparticles. Magnetic nanoparticles (~10 nm) were prepared by a ...
    • “Paralel makineli bir üretim sisteminin karinca koloni,” Optimizasyonu ile çizelgelenmesi (Scheduling Parallel machines using ant colony optimization metaheuristic) 

      Kucuk, B.; Keskinturk, Timur; Yildirim, Mehmet Bayram (2008)
      Makine Çizelgeleme problemleri genel olarak işleri makinelere amaç fonksiyonuna uygun biçimde atamayı amaçlar. Paralel makine çizelgelemede ise n sayıda işin m sayıda makineye atanmasının yine amaç fonksiyonuna uygun ...
    • A framework to minimize total energy consumption and total tardiness on a single machine 

      Mouzon, Gilles C.; Yildirim, Mehmet Bayram (Wichita State University. Graduate School., 2008-04-25)
      A great amount of energy is wasted in industry by machines which stay idle due to underutilization. A way to avoid consuming the wasted energy is to incorporate energy consumption into consideration while making the ...
    • Acoustical properties of electrospun nanofibers for aircraft interior noise reduction 

      Asmatulu, Ramazan; Khan, Waseem Sabir; Yildirim, Mehmet Bayram (2009)
      Electrospun micro and nanofibers produced via electrospinning method were used for the sound absorption purposes. Polymers were initially dissolved in dimethyleformamide (DMF) or ethanol with a ratio of 80:20 and ...
    • A nonlinear approach for integrated marketing-economic production quantity problem 

      Ghazi-Nezami, Farnaz; Yildirim, Mehmet Bayram (2010-12)
      Pricing is a key activity in determining any firm's profit in a supply chain due to the competitive nature of markets. Consequently, modeling the relation between marketing and manufacturing departments in a manufacturing ...
    • A genetic algorithm metaheuristic for bakery distribution vehicle routing problem with load balancing 

      Keskintürk, Timur; Yildirim, Mehmet Bayram (2011-05)
      In this paper, we analyze a distribution problem at a bakery company in Istanbul, Turkey. The bakery wants to distribute products with the available fleets of trucks, while maintaining balance in workload between different ...
    • Energy consumption of VA hospital CT scans 

      Esmaeili, Mohammad Amin; Jahromi, Ashkan S.; Twomey, Janet M.; Yildirim, Mehmet Bayram; Overcash, Michael; Elsken, Tyson; Dominquez, Fernando; Thomas, Nicholas; Mcadam, Ashlee (IEEE, 2011-05)
      The United States healthcare spending was about $7,681 per resident and accounted for 16.2% of the nation's GDP in 2008 and rose to compromise about 18% of the nation's GDP by 2010. As healthcare sector continues to grow ...
    • Environmental impacts of healthcare services: delivery of x-ray services 

      Esmaeili, Mohammad Amin; Twomey, Janet M.; Yildirim, Mehmet Bayram; Overcash, Michael; Jahromi, Ashkan S.; Thomas, Nicholas; Mcadam, Ashlee; Dominquez, Fernando (IEEE, 2011-05)
      THE healthcare sector of the U.S rose to compromise about 18% of the nation's GDP in 2010. In meeting patient needs healthcare organizations spend nearly $8.8 billion each year on energy. To achieve energy reduction, the ...