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Isik University Academic Open Access
Institutional Repository
275 Publications
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  • Unit element bandpass filter design via simplified real frequency technique for UWB microstrip patch antenna

    Köprü, Ramazan; Kılınç, Sedat; Aksen, Ahmet; Yarman, Bekir Sıddık Binboğa (2015)
    Design of a UWB (Ultra Wideband) microstrip patch antenna to operate in the first channel of the UWB standard and a bandpass (BP) UE (Unit Element) microstrip filter (BPUEF) for this antenna are studied and presented with promising experimental results. A typical UE BP filter is a lossless 2-port network which is formed with certain number of cascade connected commensurate transmission lines. Based on the simplified real frequency technique (SRFT) in Richards domain, driving point Darlington ...

    Türkiye'de ihracatta KDV iadesi uygulaması:yaşanılan sorunlar ve çözüm önerileri

    Aygül, Cihan (2016)
    Text in Turkish; Abstract: Turkish Includes bibliographical references (leaves: 89-93) vii, 97 leaves Bu çalışmada; Türkiye’de ihracatta KDV iadesi uygulaması ve uygulamada karşılaşılan sorunlar üzerine bir araştırma yapılmıştır. Bu bağlamda ulusal ve uluslararası Katma Değer Vergisi iade sistemleri ele alınarak, ülkemizde uygulamanın aksaklıklarına ve çözüm önerilerine yönelik değerlendirmeleri içeren bir araştırma yapılmıştır. Konusunda Uzman akademisyenler, yeminli mali müşavirler...

    An Application of the Modified Reductive Perturbation Method to a Generalized Boussinesq Equation

    Demiray, Hilmi (2013)
    In this work, we apply "the modified reductive perturbation method" to the generalized Boussinesq equation and obtain various form of generalized KdV equations as the evolution equations. Seeking a localized travelling wave solutions for these evolution equations we determine the scale parameters g(1) and g(2), which corresponds to the correction terms in the wave speed, so as to remove the possible secularities that might occur. Depending on the sign and the values of certain parameters the ...

    Fabric defect detection in frequency domain using fourier analysis

    Titrek, Nuri Gökay (2016)
    Text in English; Abstract: Turkish and English Includes bibliographical references (leaves: 44-46) x, 46 leaves An overwhelming majority of image processing based defect detection approaches rely on machine learning methods to train a model for comparison of test examples. This requires a training phase for each item to be learned and costly computations to tune model parameters. The fabric of textile always has repeating patterns that lends itself to automating the training phase by...

    Fractional Hankel and Bessel wavelet transforms of almost periodic signals

    Ünalmış Uzun, Banu (2015)
    The main objective of this paper is to study the Hankel, fractional Hankel, and Bessel wavelet transforms using the Parseval relation. We construct a generalized frame and write new relations and inequalities using almost periodic functions, strong limit power signals, and these transform methods. Publisher's Version
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