The current paper presents a six-port low-loss waveguide coupler based on ridge gap structure with potential application in various mmWave wireless systems. challenges the fabrication faced frequencies can be overcome by using technology. excitation of presented junction is done standard WR-28 flanges at bottom. performance proposed confirmed and measurement. measured results show that operates...

Understanding how skin microstructure affects slowly adapting type I (SA-I) mechanoreceptors in encoding edge discontinuities is fundamental to understanding our sense of touch. Skin microstructure, in particular papillary ridges, has been thought to contribute to edge and gap sensation. Cauna's 1954 model of touch sensibility describes a functional relationship between papillary ridges and edg...

We report a new type of plasmonic nanoscale ridge aperture and its fabrication process which is based on layer-by-layer planar lithography. This new fabrication method allows us to create desired nanoscale features of a plasmonic ridge waveguide nanoscale aperture, which helps to confine a near-field spot to sub-wavelength dimensions. Numerical simulations using Finite Element Method (FEM) are ...

A transistor laser (TL), having the structure of a transistor with multi-quantum wells near its base region, bridges the functionality gap between lasers and transistors. However, light emission is produced at the expense of current gain for all the TLs reported up to now, leading to a very low current gain. We propose a novel design of TLs, which have an n-doped InP layer inserted in the emitt...

Abstract This paper reports the findings of a comprehensive field investigation on flow through mountain gap subject to range stably stratified environmental conditions. study was embedded within Perdigão campaign, which conducted in region parallel double-ridge topography with ridge-normal wind climatology. One ridges has well-defined (col) at top, and an array situ remote sensors, including n...

Quercus-Pinus forests of the eastern USA cover millions of hectares and span a variety of ecoregions. Understanding the influence of natural disturbance on developmental and successional pathways is important for managers that wish to sustain Pinus spp. in these mixtures. Quantifying developmental and successional patterns in this forest type can help assess the need to actively manage natural ...