Now showing items 1-20 of 45

  • A fuzzy multicriteria generation expansion planning model 

    Yildirim, Mehmet Bayram; Nezami, Farnaz Ghazi; Masud, Abu S.M.; Meza, Jose L. Ceciliano (Inderscience Publishers, 2011)
    In this paper, we present a fuzzy multi-objective model for power generation expansion planning problem with uncertainty in objective functions and demand balance constraints. The purpose of the fuzzy generation expansion ...
  • 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 ...
  • Allocation of component types to machines in the automated assembly of printed circuit boards 

    Yildirim, Mehmet Bayram; Duman, Ekrem; Duman, Dilek; Cetinkaya, Coskun (Academy Publisher, 2007-09)
    Although the use of electronic component placement machines has brought reliability and speed to the printed circuit board (PCB) assembly process, to get higher utilization, one needs to solve the resulting complex operations ...
  • 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 ...
  • An ant colony optimization algorithm for load balancing in parallel machines with sequence dependent setup times 

    Keskinturk, Timur; Yildirim, Mehmet Bayram; Barut, Mehmet (Elsevier, 2010)
    This study introduces the problem of minimizing average relative percentage of imbalance (ARPI) with sequence-dependent setup times in a parallel-machine environment. A mathematical model that minimizes ARPI is proposed. ...
  • 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, ...
  • 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 ...
  • 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 ...
  • Designing a global multi-disciplinary classroom: a learning experience in supply chain logistics Management 

    Barut, Mehmet; Yildirim, Mehmet Bayram; Kilic, Kemal (2006-04-12)
    Global competition has created multinational supply chains where raw materials production, marketing, and consumption can be in different countries in order to achieve cost-effective production and higher customer service ...
  • Dispatching rules for allocation of component types to machines in the automated assembly of printed circuit boards 

    Yildirim, Mehmet Bayram; Duman, Ekrem; Duman, Dilek (Springer Verlag, 2006)
    In this paper, we propose a model and algorithms to solve a load balancing problem on a printed circuit board assembly line. On this line of two identical machines, the problem of allocation of component types to ...
  • 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 ...
  • A first best toll pricing framework for variable demand traffic assignment problems 

    Yildirim, Mehmet Bayram; Hearn, Donald W. (Elsevier, 2005)
    In this paper, we present a toll pricing framework for a general variable demand traffic assignment problem with side constraints, where the demand between an origin destination pair is a function of the least total travel ...
  • A framework to minimise total energy consumption and total tardiness on a single machine 

    Mouzon, Gilles C.; Yildirim, Mehmet Bayram (Taylor & Francis, 2008)
    A great amount of energy is wasted in industry by machines that remain idle due to underutilisation. A way to avoid wasting energy and thus reducing the carbon print of an industrial plant is to consider minimisation ...
  • 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 ...
  • 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 ...
  • 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 ...
  • Hospital patient-care and outside-the-hospital energy profiles for hemodialysis services: report of two cases 

    Soltani, Seyed A.; Overcash, Michael; Twomey, Janet M.; Esmaeili, Mohammad Amin; Yildirim, Mehmet Bayram (John Wiley & Sons Inc., 2015-06)
    Studies investigated the patient-care (in-hospital) and outside-the-hospital energy consumptions for delivering the hemodialysis (HD) service. A life cycle inventory methodology was used for this patient-based analysis for ...
  • Hospital radiology department overhead energy estimation 

    Esmaeili, Mohammad Amin; Jahromi, Ashkan S.; Twomey, Janet M.; Yildirim, Mehmet Bayram; Overcash, Michael; Dominquez, Fernando; Thomas, Nicholas; Mcadam, Ashlee (IEEE, 2011-05)
    The interest in the energy management is found in every sector of the economy. This is true of the commercial sector which includes the healthcare industry. The focus of this study is on estimating the overhead energy ...
  • Integrated maintenance and production planning with energy consumption and minimal repair 

    Yildirim, Mehmet Bayram; Nezami, Farnaz Ghazi (Springer, 2014-10)
    In this study, we analyze an integrated production-preventive maintenance planning problem where product processing times are affected by machine degradation. Preventive maintenance and repair can return the degraded ...