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It is well known that microwave emission from soil is very well correlated to its moisture content. One experimental area near Changchun was selected for the research of retrieval of soil moisture from C-band microwave radiometer. Measurements were carried out on bare smooth soils, bare soils with ridge, dry grass covered soils and standing straw covered soils with different view angles. Soil moisture...
An imaging system at 600 GHz has been constructed with the objective of providing a platform for exploration across a range of THz imaging applications. These applications include imaging concealed structures through plastic and paper based packaging, imaging of water content in leaves, and non-destructive testing. The active system uses a commercially available source and superconducting detectors...
To optimize the current-voltage characteristics of Nb/AlOx-Al/Nb Josephson tunnel junctions, a uniform and well defined insulating barrier (AlOx) is required so that no leakage current occurs between the upper and lower Nb electrodes. We investigated the dependence of the surface morphology of dc magnetron-sputtered Nb thin films on deposition parameters using atomic force microscopy (AFM), the cross-sectional...
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