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In this paper, we present a numerical simulation study of nitride-based p-i-n ultraviolet bandpass photodetectors, which was designed with a high Al composition AlGaN unipolar barrier layer. The AlGaN unipolar blocking layers act as potential barrier that reduce the collection of carriers generated by high energy photons in p-Al0.1Ga0.9N short-wave filter layer. Compared to the conventional nitride-based...
The aim of event detection in time series is to identify particular occurrences of user-interest in one or more time lines, such as finding an anomaly in electrocardiograms or reporting a sudden variation of voltage in a power supply. Current methods are not adequate for detecting certain kinds of events without any domain knowledge. Therefore, we propose a Genetic Programming (GP) based event detection...
Landing on the moon, Mars or other planets safely is of great significance for the success of space exploration. Compared with the previous cameras and human vision to look for a safe landing area, LIDAR can quickly detect the undesired zone with gravels, craters, scarps and other dangerous features. A type of laser scanner, which is designed by Shanghai Institute of Technical Physics of the Chinese...
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