This article demonstrates a planar dual-band array antenna for millimeter-wave applications, which has a left-hand circular polarization and a right-hand circular polarization for two operating bands, respectively.By using aperture-fed stacked-curls, the proposed English Saddle antenna can attain broad axial ratio (AR) bandwidths in both K- and Ka-
Background ionospheric propagation effects are adverse to the performance of Geosynchronous Synthetic Aperture Radar (GEO SAR) system.This paper focuses on the background ionospheric phase advance, which can be modelled as a function of Slant Total Electron Content (STEC).The dispersive feature of the phase advance caused by the background ionosphe
Damaged cardiac valves attract blood-borne bacteria, and infective endocarditis is often caused by viridans group streptococci.While such bacteria use multiple adhesins to maintain their normal oral commensal state, recognition of platelet sialoglycans provides an intermediary for binding to damaged valvular endocardium.We use a customized sialogly
Orthphoto mosaic, and digital elevation models (DEMs) that created from UAV imagery can be used to delineate tree crowns.The goal of this research is to compare two segmentation techniques in the estimation of crown diameter.In this regard, two successful flights were carried out in two different seasons (leaf-off and leaf-on).Then we generated acc