Abstract—In this paper, multiband meander-line antennas have been proposed which are of folded type meander–line antennas. The simulation performed in this paper used CST_STUDIO_2012. Far-field response, efficiency, gain, directivity and reflection coefficients have been chosen as performance factors for measuring antenna quality. Total four models have been represented in this paper starting f...

As hyperspectral imagery (HSI) contains rich spectral and spatial information, a novel principal component analysis (PCA) segmented-PCA (SPCA)-based multiscale 2-D-singular spectrum (2-D-SSA) fusion method is proposed for joint spectral–spatial HSI feature extraction classification. Considering the overall spectra adjacent band correlations of objects, PCA SPCA methods are utilized first dimens...

Photonic crystals (PCs) offer unique ways to control light-matter interactions. The measurement of dispersion relations is a fundamental prerequisite if we are create novel functionalities in PC devices. Angle-resolved spectroscopic techniques commonly used for characterizing PCs that work the visible and near-infrared regions. However, cannot be applied mid- long-wavelength infrared regions du...

The impact of the 1994 North American Free Trade Agreement (NAFTA) on relatively disadvantaged groups, including Mexican women, has provoked heated debate for over a decade and continues to divide opinions on NAFTA’s merits. This study uses a differences-in-differences approach to examine how NAFTA affected the female labor participation rate (FLP) in different Mexican regions. NAFTA increased ...

Phononic crystals (PCs) and metamaterials are artificially structured materials with the unprecedented property of existence complete stop-bands. However, generally narrow width stop-bands in such severely limits their applicability. Here, a particular kind gradient zigzag metamaterial beams exclusively flat bands within broad frequency range is proposed based upon our previously uniform counte...

The role of fibroblast growth factor (FGF) 2 and FGF9 as mediators of cell-cell interactions between Sertoli cells (SCs) and peritubular cells (PCs) was investigated. Using RT-PCR, we demonstrated that SCs and PCs recovered from 20-day-old rats expressed several of the seven FGF receptors (FGFRs), and more specifically the FGFR1 IIIc. FGF2 and FGF9 did not elicit any morphological changes in pr...

In this paper, we describe the implementation and evaluation of the distributed secure file system based on FUSE. A tremendous amount of content is now saved on file servers. File servers and network storage can also easily be installed in small organizations by using operating systems such as Linux. However, the storage capacity of PCs that are generally used is also increasing due to low-pric...

Studies of the refraction and dispersion properties of two-dimensional (2D) photonic-crystal (PC) slab waveguides are reported. The photonic band structure is strongly modified in a slab PC, and only a small number of bands satisfy the guiding conditions imposed by the lack of translation symmetry in the direction perpendicular to the slab; however, it was found that a significant number of the...