• Hourly electricity demand forecasting using Fourier analysis with feedback 

  Authors:Yükseltan, Ergün; Yücekaya, Ahmet Deniz; Bilge, Ayşe Hümeyra
  Publisher and Date:(Elsevier, 2020)

  Whether it be long-term, like year-ahead, or short-term, such as hour-ahead or day-ahead, forecasting of electricity demand is crucial for the success of deregulated electricity markets. The stochastic nature of the demand ...
  
  

• Managing natural gas demand for free consumers under uncertainty and limited storage capacity 

  Authors:Aktunç, Esra Ağca; Yükseltan, Ergun; Yücekaya, Ahmet; Bilge, Ayşe Hümeyra
  Publisher and Date:(Elsevier, 2020)

  Demand for energy sources depends on several factors such as population growth, urbanization, industrialization, and climate. Among fundamental energy sources, natural gas is characterized by storage limitations and ...
  
  

• An analysis of price spikes and deviations in the deregulated Turkish power market 

  Authors:Gayretli, Gizem; Yücekaya, Ahmet; Bilge, Ayşe Hümeyra
  Publisher and Date:(Elsevier, 2019)

  The successful operation of a real time market is related to the planning in the day ahead market. We analyze the day ahead and real time market data for the Turkish power market for the period 2012-2015 to classify price ...
  
  

• Evaluation of Influenza Intervention Strategies in Turkey with Fuzzy AHP-VIKOR 

  Authors:Samanlıoğlu, Funda
  Publisher and Date:(Hindawi LTD, 2019)

  In this study, a fuzzy AHP-VIKOR method is presented to help decision makers (DMs), especially physicians, evaluate and rank intervention strategies for influenza. Selecting the best intervention strategy is a sophisticated ...
  
  

• Add to Marked List 36 of 36 An intelligent approach for the evaluation of innovation projects 

  Authors:Samanlıoğlu, Funda; Ayaǧ, Zeki
  Publisher and Date:(IOS Press, 2020)

  In this study, an intelligent approach is presented for the evaluation and selection of innovation projects. Selecting the best innovation project is a complicated multiple criteria decision making (MCDM) problem with ...
  
  

• The critical point of a sigmoidal curve 

  Authors:Bilge, Ayşe Hümeyra; Ozdemir, Yunus
  Publisher and Date:(Babeș-Bolyai University, 2020)

  Let y(t) be a monotone increasing curve with lim(t ->+/-infinity) y((n))(t) = 0 for all n and let t(n) be the location of the global extremum of the nth derivative y((n))(t). Under certain assumptions on the Fourier and ...
  
  

• Fuzzy AHP-GRA approach to evaluating energy sources: a case of Turkey 

  Authors:Ayaǧ, Zeki; Samanlioglu, Funda
  Publisher and Date:(EMERALD GROUP PUBLISHING LTD, 2020)

  Purpose Since the demand for energy has dramatically increased in the countries which have fast-growing population and economy, they have faced with a critical problem of how to evaluate a set of potential energy sources ...
  
  

• A Multi-Objective Stochastic Model for an Earthquake Relief Network 

  Authors:Yenice, Zeren D.; Samanlioglu, Funda
  Publisher and Date:(Wiley-Hindawi, 2020)

  Earthquake relief network involves storage and distribution of relief aid to people in need. In this paper, a new stochastic multi-objective mixed integer mathematical model is developed and implemented in Kadikoy municipality ...
  
  

• Determining matchdays in sports league schedules to minimize rest differences 

  Authors:Cavdaroglu, Burak; Atan, Tankut
  Publisher and Date:(ELSEVIER, 2020)

  Many sports leagues first announce the games to be played in each round and then determine their matchdays as the season progresses. This study focuses on the fairness criterion of minimizing the total rest difference among ...
  
  

• A Dynamic Game Theory Model For Tourism Supply Chains 

  Authors:Keskin, Kerim; Ucal, Meltem
  Publisher and Date:(SAGE PUBLICATIONS INC, 2020)

  This article contributes to the game-theoretic analysis of tourism supply chains. We start with a baseline model including three types of agents: (a) one theme park, (b) multiple accommodation providers, and (c) multiple ...
  
  

• Generation/transmission investment planning integrated with market equilibrium models in electricity markets 

  Authors:Çelebi, Emre
  Publisher and Date:(IEEE Computer Society, 2017)

  This paper introduces integrated models for transmission investments anticipating the generation investments and market-clearing equilibrium. Market-clearing models for deregulated electricity markets can inform decision ...
  
  

• The stability constants of the rare earth complexes with trimetaphosphoric acid 

  Authors:Şungur, Şana Kutun
  Publisher and Date:(2001)

  The stability constants of the complexes formed between the rare earth metal ions and the anion of trimetaphosphoric acid have been determined at a temperature of 20°C and an ionic strength of ?=0.1 by the ion-exchange ...
  
  

• On sectional curvatures of a Weyl manifold 

  Authors:Özdeǧer, Abdülkadir
  Publisher and Date:(2006)

  In this paper it is proved that if at each point of a Weyl manifold the sectional curvature is independent of the plane chosen then the Weyl manifold is locally conformal to an Einstein manifold and that the scalar curvature ...
  
  

• An analytic network process-based approach to concept evaluation in a new product development environment 

  Authors:Ayaǧ, Zeki; Özdemir, Rifat Gürcan
  Publisher and Date:(Taylor & Francis, 2007)

  Selecting the best product concept is one of the most critical tasks in a new product development (NPD) environment. Making decisions at this stage becomes very difficult due to imprecise and uncertain product requirements. ...
  
  

• Analytic Network Process (ANP) for solar power plant location problem 

  Authors:Ayaǧ, Zeki; Samanlioglu, Funda
  Publisher and Date:(Institute of Industrial Engineers, 2010)

  Solar energy is the most readily available source of energy and one of the most important sources of the renewable energy because it is non-polluting and helps in lessening the greenhouse effect. Main problem of establishing ...
  
  

• Determining master schedule of surgical operations by integer programming: A case study 

  Authors:Samanlioglu, Funda; Ayaǧ, Zeki; Batili, Burcin; Evcimen, Esra; Yılmaz, Gulsah; Atalay, Ozlem
  Publisher and Date:(Institute of Industrial Engineers, 2010)

  Fixed amounts of available Operating Room (OR) time compatibility of ORs and restrictions related to surgery equipment and surgeon availabilities complicate the process of preparing the master surgical schedule at hospitals. ...
  
  

• Conformal and generalized concircular mappings of Einstein-Weyl manifolds 

  Authors:Özdeǧer, Abdülkadir
  Publisher and Date:(2010)

  In this article after giving a necessary and sufficient condition for two Einstein-Weyl manifolds to be in conformal correspondence we prove that any conformal mapping between such manifolds is generalized concircular if ...
  
  

• Models for relief routing: Equity efficiency and efficacy 

  Authors:Huang, Michael; Smilowitz, Karen R.; Balcik, Burcu
  Publisher and Date:(Elsevier, 2011)

  In humanitarian relief operations vehicle routing and supply allocation decisions are critically important. Similar routing and allocation decisions are studied for commercial settings where efficiency in terms of minimizing ...
  
  

• Flow Structure in a Shallow Mixing Layer Developing over 2-D Dunes 

  Authors:Kirkil, Gökhan
  Publisher and Date:(EDP Sciences, 2018)

  A high resolution Detached Eddy Simulation (DES) are used to characterize the evolution of a shallow mixing layer developing between two parallel streams in a long open channel over two-dimensional (2D) dunes. The study ...
  
  

• Turkey - Romania subsea transmission cable investment: Time for reconsideration? 

  Authors:Guler, Burak; Fuller, David J.; Çelebi, Emre; Nathwani, Jatin S.
  Publisher and Date:(2013)

  Transmission investment is important for integrating electricity markets operated by different countries/transmission system operators (TSOs). Turkey and Romania have proposed a transmission cable linking the transmission ...
  
  

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