نتایج جستجو برای: and reflection
تعداد نتایج: 16836103 فیلتر نتایج به سال:
We study the transport of electrons in a graphene NSN structure in which two normal regions are connected by a superconducting strip of thickness d. Within Dirac-Bogoliubov-de Gennes equations we describe the transmission through the contact in terms of different scattering processes consisting of quasiparticle cotunneling, local and crossed Andreev reflections. Compared to a fully normal stru...
In this paper photonic band gaps of 1D photonic crystal are compared by using transfer matrix method and Fresnel coefficients method. In Fresnel coefficients method, the refractive indices of each layer and incidence light angle to the surface are used for calculating Fresnel coefficients, and then the necessary and sufficient condition for a 100% reflection from the surface of double layer die...
The improvement in the temporal resolution of seismic data is a critical issue in hydrocarbon exploration. It is important for obtaining more detailed structural and stratigraphic information. Many methods have been introduced to improve the vertical resolution of reflection seismic data. Each method has advantages and disadvantages which are due to the assumptions and theories governing their ...
carnival is one of polyphonic word basis in mikhail bhaktin’s theory of dialogue logic. since “the carnival” is emerged from the mass celebrates in the middle ages, this element in language, is demonstrated with components, as humor, mockery and joking, rejecting the values of society, mixture of life and death, according to flesh and physical delight, social criticism, and in general, anything...
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