نتایج جستجو برای: plane structure
تعداد نتایج: 1660304 فیلتر نتایج به سال:
the present paper investigates the advantages of a new class of composite grid structures over conventional grids. thus far, a known grid structure such as orthogrid or isogrid has been used as an orthotropic layer with at most in-plane anisotropy. the present laminated grid is composed of various numbers of thin composite grid layers. the stiffness of the structure can be adjusted by choosing ...
co-fe films were electrodeposited on cu substrate from electrolytes with different co concentration levels. x-ray diffraction (xrd) was used to investigate the films crystal structures. the results indicate that if the co concentration is less that the fe concentration, the cubic structure appears in the films, while the hexagonal structure dominates when the co co...
In this research, we have studied the photonic band structure, optical properties and thermal emission spectrum of 2D Silicon photonic crystal with hexagonal structure. The band structure, band gap map and the gap size versus radius have been calculated by plane wave expansion method. The maximum band gap size of TE (TM) polarization and the complete gap size are 51% (20%) and 17% at air hole r...
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