Now showing items 1-10 of 10

    • Automated robotic assembly line design with unavailability periods and tool changes 

      Gültekin, Hakan; Tula, Adnan; Akturk, M. Selim (Inderscience Enterprises Ltd, 2016)
      We focus on an assembly line design problem of a fully automated robotic spot-welding line. Different from existing studies, we take the prescheduled unavailability periods, such as lunch and tea breaks, into account in ...
    • Comparative Analysis of Load-Shaping-Based Privacy Preservation Strategies in a Smart Grid 

      Kement, Cihan Emre; Gültekin, Hakan; Tavlı, Bülent; Girici, Tolga; Uludag, Suleyman (IEEE-Inst Electrical Electronics Engineers Inc, 2017-12)
      A key enabler for the smart grid is the fine-grained monitoring of power utilization. Although such a mechanism is helpful in the optimization of the whole electricity generation, distribution, and consumption cycle, it ...
    • Cyclic scheduling of parts and robot moves in m-machine robotic cells 

      Gültekin, Hakan; Coban, B.; Akhlaghi, V.E. (Elsevier Ltd., 2018-02-27)
      We consider a flow shop type manufacturing cell consisting of m machines and a material handling robot producing multiple parts. The robot transfers the parts between the machines and loads/unloads the machines. We consider ...
    • Energy conscious scheduling of a material handling robot in a manufacturing cell 

      Gürel, Sinan; Gültekin, Hakan; Akhlaghi, Vahid Eghbal (Elsevier Ltd, 2019)
      In cyclic scheduling of material handling robots in manufacturing cells, a common approach is to minimize the cycle time objective, which is a measure of the throughput of the cell. In a typical robot move cycle, robot ...
    • The location-allocation problem of drone base stations 

      Çiçek, Cihan Tuğrul; Gültekin, Hakan; Tavlı, Bülent (Elsevier Ltd, 2019)
      In this study, we consider the 3D location problem of multiple Drone Base Stations (DBSs) together with the allocation of the resources to serve the users in a wireless communication network. The problem is formulated as ...
    • Maximizing Wireless Sensor Network lifetime by communication/computation energy optimization of non-repudiation security service: Node level versus network level strategies 

      Yildiz, Huseyin Ugur; Bıçakcı, Kemal; Tavlı, Bülent; Gültekin, Hakan; Incebacak, Davut (Elsevier Science Bv, 2016-02)
      In a typical Wireless Sensor Network (WSN) application, the basic communication service is the transportation of the data collected from sensors to the base station. For prolonging the network lifetime, energy efficiency ...
    • Measuring the value of energy storage systems in a power network 

      Agrali, Cansu; Gültekin, Hakan; Tekin, Salih; Öner, Nihat (Elsevier Ltd., 2020-09)
      The increased use of renewable generators and their intermittent behavior motivates network operators to deploy energy storage systems. In this study, energy storage types, locations, and capacities are optimized for a ...
    • Measuring the value of energy storage systems in a power network 

      Agrali, Cansu; Gültekin, Hakan; Tekin, Salih; Oner, Nihat (Elsevier Ltd, 2020)
      The increased use of renewable generators and their intermittent behavior motivates network operators to deploy energy storage systems. In this study, energy storage types, locations, and capacities are optimized for a ...
    • Pure cycles in two-machine dual-gripper robotic cells 

      Gültekin, Hakan; Dalgic, Ozden O.; Akturk, M. Selim (Pergamon-Elsevier Science Ltd, 2017-12)
      We consider a robotic cell served by a dual-gripper robot that consists of identical CNC machines placed linearly and a material handling robot loading/unloading the machines and transporting the parts between them. Identical ...
    • Scheduling in two-machine robotic cells with a self-buffered robot 

      Gundogdu, Emine; Gültekin, Hakan (Taylor & Francis Inc, 2016-02-01)
      This study considers a production cell consisting of two machines and a material handling robot. The robot has a buffer space that moves with it. Identical parts are to be produced repetitively in this flowshop environment. ...