Yayın tarihi için Mühendislik Fakültesi listeleme
Toplam kayıt 346, listelenen: 61-80
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Long term wind speed estimation for a randomly selected time interval by using artificial neural networks, Amasra, Turkey
(Sila Science, 2012)In this study, a new ANN estimation model has been developed in order to estimate wind speed in the long term. The data used in the model developed for this study was provided from the wind station in the province of Amasra, ... -
Decomposition of Process Damping Ratios and Verification of Process Damping Model for Chatter Vibration
(2012)In the previous study, by the same authors, titled ‘‘A new process damping model (PDM) for chatter vibration (Measurement, 44 (8) (2011) 1342–1348)’’, a new approach has been presented for obtaining process damping ratios ... -
Minci (Minzi) peynirinin özelliklerinin belirlenmesi
(2012)Minci (Minzi), Karadeniz bölgesinde geleneksel yöntemlerle üretilen bir peynir çeşidimizdir. Bu çalışmada Trabzon ve Rize’de piyasada satılan Minci peynirlerinin (21 adet) mikrobiyolojik, kimyasal ve duyusal analizleri ... -
Analysis of wind turbine blade deformation with STFT method
(Sila Science, 2012)This study is intended for investigating electrical and mechanical faults of electro-mechanical systems in wind turbine. In the study, generator rotor speed, generator torque and gear torque occurred as a result of possible ... -
Testing the Reliability of A Velocity Definition in Dispersive Medium
(2012)We introduce a method to test if a given velocity definition corresponds to an actual physical flow in a dispersive medium. We utilize the equivalence of the pulse dynamics in the real-? and real-k Fourier expansion ... -
Modified finite element-transfer matrix method for the static analysis of structures
(Techno-Press, 2012)In this paper the Modified Finite Element-Transfer Matrix Method, which is the combination of Transfer Matrix Method and Finite Element Method, is applied to the static analysis of the structures. In the method, the structure ... -
Determination of effect of slot form on slot leakage flux at rotating electrical machines by the method of artificial neural networks
(Sila Science, 2012)In this study, first of all, for the one-layered winding form of the rotating electrical machines, self-induction coefficient of slot leakage has been calculated according to varying forms of slot. Given the differences ... -
Coherence analysis between hydrogen flow and electricity current in fuel cells
(Sila Science, 2012)In this study the spectral properties of the hydrogen flow and electricity current data which are collected from a fuel cell system are extracted. The electricity current of the fuel cell system is in the DC character ... -
Spectral and statistical analysis for ferroresonance phenomenon in electric power systems
(Springer, 2012)This study presents our findings on the ferroresonance phenomenon for the Seyitomer-Isiklar part of the Electric Power System of 380 kV in Turkey. In this context, the power spectral density approach and Short-Time Fourier ... -
ENVIRONMENTAL ASSESSMENT OF WIND ENERGY CONVERSION SYSTEMS IN TURKEY
(Scibulcom Ltd, 2012)Nowadays, approximation of fossil-based fuel to exhaustion reveals that countries will have difficulty in meeting energy needs in the near future. Renewable energy sources are prognosed as a solution to this problem. Among ... -
Application of wavelet transform to defect detection of building's structure
(Kaunas Univ Technol, 2012)Various methods can be used to detect the defects of structures. In this paper wavelet transform method is used. Continuous wavelet transform (CWT) is applied to vibration signal analysis of building's construction with ... -
10 kW grid-connected three-phase inverter system: Control, simulation and experimental results
(2012)In this study, implementation of a 10kW three-phase grid-connected inverter system is discussed. The system includes a high voltage dc-link, a two-level inverter and filter inductances. The high voltage dc-link is obtained ... -
Application of Artificial Neural Networks for Defect Detection in Ceramic Materials
(Polska Akad Nauk, Polish Acad Sciences, Inst Fundamental Tech Res Pas, 2012)In this study, an artificial neural network application was performed to tell if 18 plates of the same material in different shapes and sizes were cracked or not. The cracks in the cracked plates were of different depth ... -
The application of instantaneous reactive power calculation methods to a real power system
(Sila Science, 2012)Many calculation methods have been developed to calculate the reactive power used in energy transmission lines. In this study; preferred instantaneous power calculation techniques such as instantaneous orthogonal currents, ... -
Testing the reliability of a velocity definition in a dispersive medium
(Amer Physical Soc, 2012)We introduce a method to test if a given velocity definition corresponds to an actual physical flow in a dispersive medium. We utilize the equivalence of the pulse dynamics in the real-omega and real-k Fourier expansion ... -
Speed Estimation of Brushless Direct Current (BLDC) Motor with Multilayer Perceptron
(Wydawnictwo Sigma-N O T Sp Z O O, 2012)This study used an artificial neural network model to estimate the revolutions per minute of a brushless direct current (BLDC) motor operating at different driver modes and different load currents. The dataset that was ... -
Determination of the optimum hybrid renewable power generating systems for Kavakli campus of Kirklareli University, Turkey
(Pergamon-Elsevier Science Ltd, 2012)This study is to search for possibilities of supplying the load demand of Kavakli campus of Kirklareli University with solar energy and the fuel cell power generating system (electrolyzer/hydrogen tank/fuel cell) by using ... -
An investigation into the usability of straight light-pipes in Istanbul
(Sila Science, 2012)With the impact of global warming, recent years has witnessed a tremendous revival of interest in environmental issues. At the moment, the world's electricity generation mainly depends on the fossil fuels which are eventually ... -
Wind Speed Correlation Between Neighboring Measuring Stations
(Springer Heidelberg, 2012)This study provides a wind speed estimation of the target station using wind speed data of the neighboring station despite the mountainous structure of the Southeastern Anatolian Region of Turkey. Within the study, a method ... -
Diagnostics of construction defects in a building by using time-frequency analysis
(Kaunas Univ Technol, 2012)The paper analyzes the problem of detection and identification of the defects in the layers of the buildings. In order to analyze the behaviour of the damaged and undamaged layer, the defects in the layers were modelled ...