DSpace@Çankaya

Tür "article" için Elektronik ve Haberleşme Mühendisliği Bölümü Yayın Koleksiyonu listeleme

Tür "article" için Elektronik ve Haberleşme Mühendisliği Bölümü Yayın Koleksiyonu listeleme

Sırala: Sıra: Sonuçlar:

  • Al-Mihrab, M.; Salim, A.; Al-Saedi, H.; Ali, J. (2020)
    A penta-band printed monopole antenna based on a hexagonal open loop shape is presented in this paper. The proposed antenna demonstrated a variety in the polarization. Antenna is loaded with some parts and two stair-shaped ...
  • Yıldırım, Erdem Kamil; Güvenç, Büşra (Pergamon-Elsevier Science Ltd, 2009-06)
    In this work we present the results of a detailed theoretical research for the small Li(n)B(m) clusters and their hydrogen storage properties by means of density functional theory. All calculations were performed by using ...
  • Umul, Yusuf Ziya (Elsevier Science Bv, 2011-09-01)
    The solution of Maliuzhinets of the diffraction problem of waves by an impedance wedge is transformed into a physical optics integral. The resultant expression is suitable for the investigation of various diffraction ...
  • Şener, Göker (Taylor&Francis Ltd, 2013-07-01)
    This article describes a new method to determine the directions of the zero fields in antenna radiation measurements. Zero-field detection is important when there are null constraints in antenna analysis or synthesis. To ...
  • Umul, Yusuf Ziya (Elsevier GMBH, 2019)
    Dirac equation is based on a novel method that expresses the roots of a square-root operation in terms of matrices. Instead of this technique we propose an alternative approach. The square-root expression is represented ...
  • Sermutlu, Emre; Eyyuboğlu, Halil T. (Elsevier Science, 2007-01-01)
    In MATLAB environment, a new quadrature routine based on Gaussian quadrature rule has been developed. Its performance is evaluated for improper integrals, rapidly oscillating functions and other types of functions requiring ...
  • Umul, Yusuf Ziya (Elsevier Science Bv, 2013-03-15)
    The diffraction integral of Kirchhoff is rearranged according to its integral boundaries. The new approach is based on the theory of the edge dislocation waves and provides a more correct field representation for the ...
  • Umul, Yusuf Ziya (2021-11)
    In the non-relativistic case, the problem of quantum harmonic oscillator is solved by the aid of the Schro spacing diaeresis dinger equation. An additional term of potential energy that is related with the square of the ...
  • Mezaal, Yaqeen S.; Eyyuboğlu, Halil T.; Ali, Jawad K. (IEEE, 2013)
    New characteristics of fractal design scheme has been introduced to generate compact two poles capacitively coupled microstrip bandpass filter by using additional coupling stubs for different wireless applications. The ...
  • Umul, Yusuf Ziya (2021-04)
    A relativistic electron, in an electromagnetic wave is studied. The relativistic energy-momentum relation is taken into consideration for the derivation of a wave equation for spin-1/2 particle. The electromagnetic wave ...
  • Rafiq, Muhammad; Ahmad, Waheed; Abbas, Mujahid; Baleanu, Dumitru (2020-10-01)
    The purpose of this article is to discuss the dynamics of the spread of Ebola virus disease (EVD), a kind of fever commonly known as Ebola hemorrhagic fever. It is rare but severe and is considered to be extremely dangerous. ...
  • Dursun, İbrahim H.; Güvenç, Ziya B.; Kasap, E. (Elsevier Science Bv, 2010-05)
    An analytical embedded atom method which can treat bcc transition metal iron has been developed. In this model, a new potential was presented and a modified term has been introduced to fit the negative Cauchy pressure P-C ...
  • Eyyuboğlu, Halil T. (Springer, 2008-06)
    We derive the source field expressions of different Mathieu beams. In particular, Mathieu beams consisting of the infinite summations of J-type Bessel functions and their Gaussian counterparts are studied. Mathieu beams ...
  • Umul, Yusuf Ziya (Elsevier GMBH, 2019)
    The solution of the relativistic tunneling problem with the aid of the Klein-Gordon and kinetic energy based wave equations are reviewed. The behaviors of the transmitted and reflected wave functions by the potential barrier ...
  • Umul, Yusuf Ziya (Elsevier GMBH, 2017)
    A function which occurs in the scattering problem of the spherical waves by a perfectly conducting half-plane is introduced for constructing the transition functions of the uniform theory of diffraction and uniform asymptotic ...
  • Schmidt, Klaus Werner (Pergamon-Elsevier Science LTD, 2010-09)
    In this paper, we investigate the verification of codiagnosability for discrete event systems (DES). That is, it is desired to ascertain if the occurrence of system faults can be detected based on the information of multiple ...
  • Özaydın, Selma (2018-08)
    This paper presents the acoustic and linguistic properties of Turkish Whistle Language. Whistle Language is a natural communication method usually used for far-distance interaction in some regions in the world. In a whistled ...
  • Cai, Yangjian; Korotkova, Olga; Eyyuboğlu, Halil T.; Baykal, Yahya (Optical Soc Amer, 2008-09-29)
    Propagation of stochastic electromagnetic beams through paraxial ABCD optical systems operating through turbulent atmosphere is investigated with the help of the ABCD matrices and the generalized Huygens-Fresnel integral. ...
  • Baykal, Yahya (Taylor&Francis LTD, 2020-02-06)
    Adaptive optics correction of the scintillation index of a Gaussian laser beam in underwater turbulence is studied. To introduce the adaptive optics correction, filter functions providing the piston, tilt and astigmatism ...
  • Umul, Yusuf Ziya (2021-12)
    A new relativistic Airy-type matter wave is introduced as a solution of the kinetic energy based wave equation. The parametric solution of the related differential equation is obtained. The total energy and momentum of the ...