2016 Cilt 21 Sayı 1

Permanent URI for this collectionhttps://hdl.handle.net/11452/11719

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Browsing by Department "Elektrik Elektronik Mühendisliği Bölümü"

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    Analysis of material position and size in a waveguide fed resonator
    (Uludağ Üniversitesi, 2016-02-09) Kent, Sedef; Süle, Okan; Mühendislik Fakültesi; Elektrik Elektronik Mühendisliği Bölümü
    The main factors that affect electric field distribution, and therefore heat distribution, are the dimensions of the resonator, heating frequency, shape and dielectric properties of the material to be heated, position of the material to be heated within the resonator and the position of the feed guide on the resonator. From among these factors that directly affect heating, this work examined the material thickness. The purpose of this study was to determine the material thickness that will minimise the reflection coefficient. The accuracy of the results obtained by means of the mode matching method was demonstrated by comparing those results with the results obtained through Ansoft’s High Frequency Structure Simulator.
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    Differential equation solver simulator for runge-kutta methods
    (Uludağ Üniversitesi, 2016-01-19) Hatun, Metin; Vatansever, Fahri; Mühendislik Fakültesi; Elektrik Elektronik Mühendisliği Bölümü
    Many of problems in engineering and science is modeled by differential equations mathematically, therefore their solutions have an important role. Various methods have been developed for analytical or numerical solutions of differential equations. In proportion to the development of technology, the numerical solution methods are utilized widely. In particular, the main objectives in real time applications are to reach the correct solution as soon as possible with minimal processing and maximum precision. In the performed study, a simulator that contains Runge-Kutta based forty-eight methods was developed for numerical solution of differential equations. In the user friendly simulator which can be used also for educational purposes, the solution of defined differential equation under the specified initial condition with given step size or according to the number of points requested within the specified range can be obtained by the selected method. Solutions can be presented to the user both numerical (step values, computation time) and graphically; also the subject explanations about the methods/solutions can be given. Furthermore, the comparative solutions (performance analysis) can be implemented by the simulator. So, the users can realize the numerical solutions of differential equations with different methods by the simulator; the students learn the methods in this field visually with the aid of subject explanation and can implement step by step; the designers can choose the most appropriate method easily, effectively and accurately for their systems by the comparative analysis.