Now showing items 1-19 of 19

  • An analysis of development indicators for turkey based on the historical development of 500 largest industrial organizations 

    Authors:Otnar, Ferhan
    Publisher and Date:(Kadir Has University, 2015)
    Economies live rapid changes in terms of size direction and intention due to globalization population increase of countries and technological developments. These changes seemed clearer in developing countries because of fast progress and demand increases. Especially in last 10 year period Turkey gained economical acceleration along with growth and development. Parallel to these developments diversification in industrial areas and evolvement in remained areas used as an answer. in this aspect ...

  • Co-optimization models of generation and transmission investments with market-clearing equilibrium 

    Authors:Uyan, Zeki
    Publisher and Date:(Kadir Has University, 2018)
    Methods for co-optimizing transmission and generation investments including bi-level or multi-level problems consider trade-offs with market operations and interactions in electric power supply and demand. Under fairly general conditions it is known that simultaneous solution of these multi-level models using complementarity problems can give more useful results than iterative optimization methods or single-level optimization of generation or transmission expansion alone. Hence in this thesis we ...

  • Debris removal strategies to improve accessibility road networks 

    Authors:Özkenar, Tuğçe
    Publisher and Date:(Kadir Has University, 2019)
    Disasters are non-routine events which have occurred in every age of history and have resulted in losses of several lives and economic losses. Debris is one of the most devastating consequence of the disasters. Debris occurs by the collapse of buildings and roads, threatens life, causes environmental problems and interrupts daily life. It is very crucial to remove debris effectively to open blocked roads, reach affected areas and help the people in need. Debris removal operations require a rational ...

  • Designing of an enterprise product innovation system for companies 

    Authors:Demirhan, Mehmet Özhan
    Publisher and Date:(Kadir Has University, 2018)
    Today, innovation is the most decisive factor for companies to grow and gain competitive edge in the market. In particular, firms support a product innovation policy in order to be permanent in the market. Product innovation refers to the emergence of new products and the development of existing products. By means of companies' product innovation reduces expenditure; new customers win and make high profits. AHP Method with a numerical example to evaluate the projects in this system. Organizational, ...

  • Detection of fraudulent activities in mobile display advertising 

    Authors:Kaya, Safiye Şeyma
    Publisher and Date:(Kadir Has University, 2017)
    Most of the marketing expenditures in mobile advertising are conducted through realtime bidding (RTB) marketplaces in which ad spaces of the sellers (publishers) are auctioned for the impression of the buyers’ (advertisers) mobile apps. One of the most popular cost models in RTB marketplaces is cost per install (CPi). in a CPi campaign publishers place mobile ads of the highest bidders in their mobile apps and are paid by advertisers only if the advertised app is installed by a user. CPi cost model ...

  • Determination of time-of-use prices in electricity markets using clustering analyses 

    Authors:Hussain, Mohsan
    Publisher and Date:(Kadir Has University, 2016)
    in this thesis a clustering analysis to determine the blocks (clusters) of hours for time-of-use (TOU) pricing scheme is proposed and different clustering algorithms are compared using different measures i.e. change in overall revenue mean absolute percent error and adjusted coefficient of determination (R2) from multiple linear regression analyses. Hourly electricity price and demand (load) data for two seasons (winter and summer) from Pennsylvania-New Jersey-Maryland (PJM) wholesale electricity ...

  • Economic and operational analysis of compressed air energy storage systems 

    Authors:Kara, Esma Sedef
    Publisher and Date:(Kadir Has University, 2011)
    A Compressed Air Energy Storage System (CAES) is a way to store energy to be used when the demand for energy is high. in this system the air is pumped into a cavern when the power price is low and the air is used in a natural gas fired turbine to generate power when the price is high aiming to make profit from this price difference. The system can pump or generate or do both. Typically the power price is low at nights and high during the daytime. However the power and natural gas price along with ...

  • Electricty demand and supply scenario analysis for nigeria using long range energy alternatives planning 

    Authors:İbrahim, Hanif Auwal
    Publisher and Date:(Kadir Has University, 2017)
    Electricity demand and supply forecasts are very important tools for determining solutions to the problems in the electricity sector such as power outages. The Long Range Energy Alternatives Planning (LEAP) energy model was used for this study because of its low data requirements. The forecast for electricity demand and supply for Nigeria was carried out from 2010-2040. Three scenarios were generated which include Business as Usual (BAU) Energy Conservation (EC) and Renewable Energy (REN). The ...

  • Energy transition scenario analysis for Turkey using long range energy alternatives planning (LEAP) 

    Authors:Massaga, Daniel Julius
    Publisher and Date:(Kadir Has University, 2019)
    Fossil fuel thermal power plants constitute a large part of the Turkish electricity generation capacity. The Turkish government has been developing several energy policy documents to evaluate how various renewable energy sources of the country can be utilized optimally in the generation of electricity for the next 30 years. The study considers three scenarios in the transition to renewable energy for Turkey; the business as usual (BAU), energy conservation (EE) and renewable energy (REN) scenarios ...

  • An evaluation of energy and electricity in Pakistan 

    Authors:Humaiyun, Muhammad Jasim
    Publisher and Date:(Kadir Has University, 2016)
    Pakistan is a developing country and it can only move forward once the energy sector is secure and self sufficient. Right from the beginning the country has constantly faced energy shortages in all sectors due to incompetent policies and governence. This study frames the analysis of the current energy situation with main focus on electricity. All the factors which are hampering the growth of the energy sector are identified and potential solutions are discussed. Matching the electricity supply and ...

  • Market price simulations for Turkish electricity market using equilibrium models 

    Authors:Çakır, Hande
    Publisher and Date:(Kadir Has University, 2014)
    Electrical energy which is known as secondary energy sources is generated by the conversion of renewable energy sources to potential and chemical energy or is generated by variety processes of fossil fuels. Electricity is an important product in an economy and an important input for production of most of the goods and services. Electricity has unique properties such as non-storability and it has no full substitute and therefore the electricity industry is different from classical competitive ...

  • Market-clearing simulations and analyses for Turkish electicity market market 

    Authors:Şentürk Eker, Cansu
    Publisher and Date:(Kadir Has University, 2017)
    in this thesis current market structure of the Turkish electricity market which uses a uniform pricing system is analyzed and new market-clearing mechanisms (e.g. single or nodal pricing) are investigated for the market requirements. This has led to the development of different market-clearing models and market-price simulations that can be encountered in transition to a regional pricing model which provides market participants with greater transparency and simplicity in forecasting market outcomes. ...

  • Models for long-term electricity price forecasting for Turkish electricity market 

    Authors:Özçelik, Sirun
    Publisher and Date:(Kadir Has University, 2017)
    in this study we have developed models for long-term electricity price forecasts for Turkish electricity market using multiple regression and time series forecasting methods. For the regression models we have firstly obtained the monthly data for demand weighted average of market-clearing electricity price (dependent variable) electricity demand hydro power production wind power production and population as well as yearly gross domestic product (GDP) and human development index (HDi) as independent ...

  • Multi - objective location routing problem for nuclear power plants and nuclear waste disposal centers 

    Authors:Sezenler, Gül Ecem
    Publisher and Date:(Kadir Has University, 2011)
    Nuclear energy is used by many countries and has already taken its place among the future sources of energy. in Turkey nuclear energy has recently been accepted by the majority of people as an alternative energy source. As a result inspections and research have accelerated to establish a nuclear power plant. in this thesis a new multi-objective location-routing mathematical model is developed and implemented using actual data for Turkey. The model selects best locations for nuclear power plants ...

  • Multi-objective disaster relief logistics 

    Authors:Samarah, Mahdi M
    Publisher and Date:(Kadir Has University, 2018)
    Disaster relief logistics is one of the major fields of operations research. Deciding the locations of depots before the disaster by minimizing total costs and total distances between nodes of demands and these depots is the main purpose of this study. The efficiency of disaster relief logistics is expressed in terms of the total transportation cost. The other objective function is considering minimizing total accumulated time to represent efficacy to supply different number of pallets which include ...

  • A probabilistic model to maximize cross-selling revenues in financial institutions 

    Authors:Altun, Yasin
    Publisher and Date:(Kadir Has University, 2016)
    Alongside earns transaction volume and transaction number goals banks also have cross selling rate aims in recent years. Also again many banks of our day have studies on transaction cost and calculate costs for every single transaction without missing any and take this information into account while calculating the actual profitability of customer. We searched which product could be sold to customer in this process. While doing this we took the cost of offer into consideration and try to maximize ...

  • Risk constrained self-scheduling for a power producer using power to hydrogen storage in day-ahead markets 

    Authors:Nur Küçük, Nida
    Publisher and Date:(Kadir Has University, 2019)
    In this thesis, optimal weekly self-schedule of a natural gas power plant with a hydrogen storage system is determined by using a stochastic model with risk constraints in a day-ahead electricity market. Different electricity price scenarios have been created for a weekly schedule where each scenario represents a certain month in a year. The risk associated with this scheduling decision is characterized by a conditional value at risk (CVaR) measure and a trade-off between this risk and operation ...

  • The social return of investment metrics: Successful social media measurement 

    Authors:Cengiz, Yasemin
    Publisher and Date:(Kadir Has University, 2017)
    The world economy has been formed based on needs, innovations, wars, and trends until today. Primary sector became stepping stone, industrial development forwarded economy to 2000's and now, today, internet is shaping it with accordance to trends. If someone is aiming for an investment, clicking for stock market or F/X rate is too simple, if someone is looking for renting a house, it takes a few minutes to conclude, if someone is surfing for online shopping, there are many options to the point ...

  • A supplier selection model for designing framework agreements in relief chain 

    Authors:Ak, Deniz
    Publisher and Date:(Kadir Has University, 2011)
    When a disaster occurs disaster relief operations are undertaken immediately to help people affected by disasters. However in the aftermath of natural disasters relief supplies that are critical for survival may not be readily available in the desired amounts or prices. Hence procurement is an important function for disaster relief operations. Relief organizations face with several procurement decisions in managing the relief chain. Since quick response is critical in disaster relief designing ...