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Wyszukujesz frazę "Vasić, B." wg kryterium: Autor


Wyświetlanie 1-4 z 4
Tytuł:
Confined Metamaterial Structures Based on Coordinate Transformations
Autorzy:
Vasić, B.
Gajić, R.
Isić, G.
Hingerl, K.
Powiązania:
https://bibliotekanauki.pl/articles/1807844.pdf
Data publikacji:
2009-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
03.50.De
41.20.Jb
42.70.-a
Opis:
We apply transformation optics to structures in which the electromagnetic field is confined by highly conducting coatings. The possibility of changing the field propagation direction without perturbation is demonstrated on the example of a waveguide bend. Using this approach it is also possible to reshape a confined structure in order to meet certain external requirements and to redistribute a field in order to obtain desired field distribution. The structure implementation implies replacing a part of given confined structure with a metamaterial designed using the technique of transformation optics. Simplification of structure realization based on using reduced set of material parameters is examined. Our theoretical considerations are confirmed by full wave finite element simulations of a waveguide bend.
Źródło:
Acta Physica Polonica A; 2009, 116, 1; 96-98
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling the Variable Angle Reflection and Transmission from Metamaterial Slabs
Autorzy:
Isić, G.
Vasić, B.
Mirić, M.
Jokanović, B.
Bergmair, I.
Gajić, R.
Hingerl, K.
Powiązania:
https://bibliotekanauki.pl/articles/1795623.pdf
Data publikacji:
2009-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
41.20.-q
42.25.Bs
42.70.Qs
Opis:
We consider metamaterial slabs composed of perfectly conducting split-ring resonators. Assuming bianisotropic constitutive relations, we describe an S-parameter retrieval method that allows us to obtain the full material parameter tensors from numerically calculated S parameters. The retrieval has been done for various angles of incidence, ranging from 0° to 75°. It has been found that the parameters depend on the angle of incidence, but that this dependence is relatively small.
Źródło:
Acta Physica Polonica A; 2009, 116, 4; 631-634
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterization of New Structure for Silicon Carbide X-Ray Detector by Method Monte Carlo
Autorzy:
Stankovic, S.
Ilic, R.
Jankovic, K.
Vasic-Milovanovic, A.
Loncar, B.
Powiązania:
https://bibliotekanauki.pl/articles/1503337.pdf
Data publikacji:
2011-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.85.Fv
87.55.kh
85.30.Kk
61.72.uf
77.84.Bw
Opis:
This work presents a characterization of radiation absorption properties of silicon carbide (SiC) as semiconductor for the realization of detectors for X-rays. SiC detectors can potentially reach superior performance with respect to all the other semiconductors presently employed in hazardous environments in nuclear and space science and technology. Physics and numerical modeling of photons transport through SiC detector is incorporated in non-destructive Monte Carlo method for determining the energy deposited and dose distribution. The Monte Carlo code has been adopted for numerical simulations for different detector conditions and configurations. The X-ray characterization of new SiC structures originates the improving of design of these detector systems.
Źródło:
Acta Physica Polonica A; 2011, 120, 2; 252-255
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal Stability and Mechanism of Thermally Induced Crystallization of $Fe_{73.5}Cu_1Nb_3Si_{15.5}B_7$ Amorphous Alloy
Autorzy:
Vasić, M.
Minić, D.
Blagojević, V.
Žák, T.
Pizúrová, N.
David, B.
Powiązania:
https://bibliotekanauki.pl/articles/1402117.pdf
Data publikacji:
2015-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
64.70.dg
64.70.kd
64.70.pe
Opis:
Investigation of thermal stability of the alloy revealed stepwise crystallization process, manifested by two distinct complex exothermic peaks in differential scanning calorimetry curves. Kinetic parameters of individual crystallization steps were found using the Kissinger and Vyazovkin methods. Structural characterization of thermally treated samples showed formation of different iron-based phases including α-Fe(Si), Fe₂B, Fe₁₆Nb₆Si₇ and Fe₂Si and some metastable intermediary species. Morphology characterization of the surface and cross-section of the thermally treated samples showed granulated structure composed of several different phases and indicated occurrence of impingement effects during crystal growth. Value of estimated lifetime suggested very high stability against crystallization at room temperature and abrupt decrease of lifetime with temperature increase.
Źródło:
Acta Physica Polonica A; 2015, 128, 4; 657-660
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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