نتایج جستجو برای: hexagonal shaped structure

تعداد نتایج: 1632645  

ژورنال: مواد پرانرژی 2016

In this paper, the penetration process of the follow warhead in anti structure tandem projectiles is investigated by numerical and experimental methods. These projectiles are usually shaped charge or EFP. In the follow projectile, geometry and material are considered as the two main parameters. Numerical modeling of the problem has been performed in AUTODYN code. The numerical results have ...

Journal: :journal of nanostructures 2015
y. zeraatkish m. jafarian m. g. mahjani

electrochemical properties of various rock-shaped-cuo/graphite (g) composites and monoclinic structure cuo nanoparticles as the cathode versus a zinc plate as the anode in a 4m naoh electrolyte were elucidated by electrochemical impedance spectroscopy (eis) and chronopotentiometry (cp) in a two electrode configuration cell. various values of g 9, 16 and 28 wt% were prepared and studied as catho...

In this paper, a plasmonic filter made of a split ring, two U-shaped structures and two straight waveguides is designed and investigated. In the proposed structure, the split ring and U-shaped structures are situated between straight waveguides. Simulations are done based on FDTD method. Split ring, U-shaped structures and straight waveguides are made of air in the silver background. In the pro...

Waveguides with low confinement loss, low chromatic dispersion, and low nonlinear effects are used in optical communication systems. Optical fibers can also be employed in such systems. Besides optical fibers, photonic crystal fibers are also highly suitable transmission media for optical communication systems. In this paper, we introduce two new designs of index-guiding photonic crystal fiber ...

2015
Keshav Thakur Pooja Gupta

In today’s world all the imaging data or information is processed and stored in a digital form. The digital imaging used in many applications like forensic imaging, medical imaging and computer graphics etc. The image is first captured by the hardware and then converted into digital form and stored in memory device. The digital images are represented and stored in the form of square pixel. The ...

2017
Zhilong Jiang Yiming Li Ming Wang Bo Song Kun Wang Mingyu Sun Die Liu Xiaohong Li Jie Yuan Mingzhao Chen Yuan Guo Xiaoyu Yang Tong Zhang Charles N. Moorefield George R. Newkome Bingqian Xu Xiaopeng Li Pingshan Wang

Five- and six-pointed star structures occur frequently in nature as flowers, snow-flakes, leaves and so on. These star-shaped patterns are also frequently used in both functional and artistic man-made architectures. Here following a stepwise synthesis and self-assembly approach, pentagonal and hexagonal metallosupramolecules possessing star-shaped motifs were prepared based on the careful desig...

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