نتایج جستجو برای: hexagonal shaped structure

تعداد نتایج: 1632645  

2013
J. P. Shinde

The various perturbing structures for generation of circular polarization (CP) in a hexagonal shaped microstrip antenna (HMSA) with patch side length of 20 mm is used to resonate in the Mobile Satellite Service (MSS) band at a centre frequency of 2 GHz. The hexagonal geometry to achieve CP is perturbed in four different ways: first with a rectangular slot at centre, second with two narrow slits...

Journal: :Optical and Quantum Electronics 2021

Efficient light absorption is the most crucial factor for high spectral responsive photodetection phenomenon. Nanopillars constitute a great opportunity in enhancing efficiency along with reducing electrical cross-section of device. Here an analytical investigation proposed periodic GaAs material based half octagonal cut vertically oriented hexagonal nanopillar array deployed over 5um x front d...

2014
Kitty Y. M. Yeung Jingyee Chee Hosang Yoon Yi Jing Kong Donhee Ham

Our graphene plasmonic crystals are realized by creating hexagonal lattices of apertures in continuous graphene media. The hexagonal lattice—whether its aperture is circularly or hexagonally shaped—possesses the C6v point group symmetry with 6-fold rotation axes and 6 reflection planes; see Fig. S1 in case of the hexagonal lattice with circular apertures. Following the crystallographic conventi...

Journal: :Applied Science and Convergence Technology 2014

2005
Wenjing Jia

Using hexagonal grids to represent digital images have been studied for more than 40 years. Increased processing capabilities of graphic devices and recent improvements in CCD technology have made hexagonal sampling attractive for practical applications and brought new interests on this topic. The hexagonal structure is considered to be preferable to the rectangular structure due to its higher ...

2007
XIANGJIAN HE HUAQING WANG WENJING JIA QIANG WU NAMHO HUR JINWOONG KIM

Hexagonal structure is different from the traditional square structure for image representation. The geometrical arrangement of pixels on hexagonal structure can be described in terms of a hexagonal grid. Uniformly separating image into seven similar copies with a smaller scale has commonly been used for parallel and accurate image processing including image compression on hexagonal structure. ...

Journal: :Journal of optics 2023

An ultra-wideband band-stop plasmonic filter (UWB-BSF) in mid-infrared (MIR) range based on metal–insulator–metal (MIM) waveguide coupled with a hexagonal resonator is proposed this work. Using RSoft CAD commercial software, the designed BSF numerically and theoretically investigated by 2D Finite-Difference Time-Domain method. To enhance BSFs system mid-infrared, obtaining ultra-wide bandgap wi...

2013
Fabien Silly

This document is the unedited author’s version of a Submitted Work that was subsequently accepted for publication in Journal of Physical Chemistry C, copyright c © American Chemical Society after peer review. To access the final edited and published work see http://pubs.rsc.org/en/journals/journalissues/tc. Two-dimensional (2D) self-assembly of star-shaped 1,3,5-Tris(4-carboxyphenyl)benzene mol...

Journal: :The journal of physical chemistry. B 2005
Subhajit Biswas Soumitra Kar Subhadra Chaudhuri

Manganese-incorporated ZnS (MnxZn1-xS) nanorods were synthesized by a simple solvothermal process. Synthesized nanorods were single crystalline. Manganese incorporation in the ZnS lattice induces a phase transformation from hexagonal wurtzite to cubic zinc blende structure. The diameter of the nanorods increased with the increase of Mn concentration. Intense orange luminescence at approximately...

2017
Jin Heui Koo Byeong Woo Lee

Zinc oxide (ZnO) powders were synthesized by a simple hydrothermal process in the temperature range of 50 to 100 C. Nanocrystallites were formed by a simple hydrothermal route from aqueous solutions of zinc nitrate hexahydrate (Zn(NO3)2·6H2O) and NaOH under controlled process conditions such as precursor concentration (0.07 to 1 mol/L), reaction pH (7 to 11) and temperatures. Single phase ZnO p...

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