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To improve the spatial resolution of the global aerosol optical depth (AOD) distribution, a new method for AOD retrieval is proposed over land in this paper. A monthly Global Land Surface Reflectance Database (GLSRD) was constructed using the long time serious of MODIS surface reflectance product (MOD09A1) and used for the surface reflectance estimation over land for AOD retrieval. A seasonal Global...
Recycled aggregates Concrete (RAC) has rich and extensive resources of uncertainty. It's physical and mechanical performances and durability are complicated and uncertain. While the durability of RAC is concerned by people that limit the broad usage in industry. This paper presents a detailed discussion about the durability of RAC including replacement rate, age, water to ratio, addition, and loading.
Sound field is described by sound pressure and velocity; this is different from the former concept. This paper has discussed the application of vertical sound intensity stream in shallow and low frequency sound field based on fast field program (FFP) model. The vector signal processing technique is analyzed from physical angle of view, and is made use of to judge the surface ship or submarine. For...
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