Scopus İndeksli Yayınlar Koleksiyonu

Permanent URI for this collectionhttps://hdl.handle.net/20.500.12416/8651

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Institution Author: search.filters.institutionAuthor.Umul, Yusuf Z.Subject: search.filters.subject.Diffraction

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Now showing 1 - 5 of 5
  • Article
    Citation - WoS: 1
    Citation - Scopus: 1
    The Relation Between Wave Vector and Momentum in Quantum Mechanics
    (Elsevier Gmbh, 2016) Umul, Yusuf Z.
    The fundamental relation of quantum mechanics, which correlates the momentum of a quantum particle to the wave vector of the matter wave, is re-interpreted. The wave vector, in the relation, is formulized as the integration of it along the angular coordinates for two and three dimensional cases. Various evaluations of the wave vector are performed for different types of waves and the results are discussed. Also the edge diffracted fields are considered according to the new interpretation. (C) 2016 Elsevier GmbH. All rights reserved.
  • Article
    Citation - WoS: 3
    Citation - Scopus: 4
    Diffraction of Plane Waves by a Black Wedge
    (Elsevier Sci Ltd, 2010) Umul, Yusuf Z.
    The scattering of plane waves by a black wedge is examined. Two methods are considered for the solution of the problem. A closed-form series solution is derived by performing the technique of the separation of variables using boundary conditions of Macdonald. The second approach is the method of the modified theory of physical optics. The results are compared numerically. (C) 2009 Elsevier Ltd. All rights reserved.
  • Article
    Citation - WoS: 14
    Citation - Scopus: 15
    Closed Form Series Solution of the Diffraction Problem of Plane Waves by an Impedance Half-Plane
    (Iop Publishing Ltd, 2009) Umul, Yusuf Z.
    The scattering problem of plane waves by an impedance half-plane is solved by using the method of separation of variables, and a closed form series expression, which separately reduces to the cases of soft and hard half-planes, is obtained. The results are investigated numerically and compared with the solutions in the literature.
  • Article
    Citation - WoS: 33
    Citation - Scopus: 36
    Mtpo Based Potential Function of the Boundary Diffraction Wave Theory
    (Elsevier Sci Ltd, 2008) Umul, Yusuf Z.
    A novel potential function is introduced by using the modified theory of physical optics integrals for a perfectly conducting half-plane. The function is valid for arbitrary aspects of observation. The line integration of these functions gives the total scattered fields. The method is applied to the problem of diffraction of plane waves by an opaque half-plane for oblique incidence. (c) 2008 Elsevier Ltd. All rights reserved.
  • Article
    Citation - WoS: 7
    Citation - Scopus: 8
    The Theory of the Boundary Diffraction Wave for Wedge Diffraction
    (Taylor & Francis Ltd, 2008) Umul, Yusuf Z.
    A new potential function, line integration which gives the edge diffracted fields, is constructed for wedge diffraction by using the method of modified theory of physical optics. The surface integrals are transformed into line integrals by the technique of asymptotic reduction. As an application of the novel potential function, the diffracted field is obtained for the geometry of a wedge for arbitrary incidence of plane waves.