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A novel broadband dual-polarized antenna array for base station applications is proposed. The single radiating element is required to perform wide band, dual-polarization and high radiation efficiency. In addition, we have integrated the structure into array and discussed the performance. The bandwidth covers from 2.6–3.8 GHz. By applying isolators and a bended reflector, high isolation and high front-to-back...
In this study, we propose a new fingertip detection algorithm using two-stage random decision forest (RDF). In the first stage, local depth difference pattern (LDDP) and 3D geodesic shortest path (GSP) are adopted for training a finger pixel classifier. Two spatial and temporal features are then added into RDF to further distinguish fingertip pixels from finger pixels in the second stage. Finally,...
A compact dual open-loops antenna with bandwidth enhancement is proposed for near-field operations in the ultra-high frequency (UHF) band, which is able to generate a strong and uniform magnetic field in a near-field zone of the smaller open-loop. The two open-loops with individual half-wavelength perimeters are etched on each sides of FR4 printed circuit board and used for widening bandwidth. The...
The photosynthetic thermophiles have advantage in sequestering CO 2 emitted from the energy sector due to their adaptation to high temperatures, growth at high concentrations of CO 2 , and economically important metabolites. The characterization of such a microorganism, a cyanobacterium from Taian hot springs in Taiwan is described here. This thermophilic cyanobacterium is rod-shaped...
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