C-BAND POLARIMETRIC SAR MEASUREMENTS FOR THE MONITORING OF GROWTH STAGES OF CORN FIELDS IN THE PIANA DEL SELE ZONE
2015 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
Authors: Nunziata, F.; Migliaccio, M.; Lopez-Sanchez, J. M.; Mascolo, L.; Mazzarella, G.; D'Urso, G.
Abstract
C-band RADARSAT-2 quad-pol and X-band COSMO-SkyMed incoherent dual-polarization PingPong SAR data are used to monitor corn fields phenology. The polarimetric analysis carried out at C-band shows a sensitivity of polarimetric observables to corn phenology that allows to interpret the different polarimetric signatures occurring along the cultivation cycle. Unfortunately, at the X-band, a physical interpretation is not properly provided, due to the unavailability of radar acquisitions for the most of the cultivation cycle. This is due to defense requirements which caused conflict acquisitions with the planned COSMO-SkyMed SAR data.
Water purification by polymer nanocomposites: an overview
NANOCOMPOSITES
Authors: Pandey, Neeta; Shukla, S. K.; Singh, N. B.
Abstract
In recent years, polymer nanocomposites (PNCs) have attracted the attention of scientists and technologists in water purification due to improved processability, surface area, stability, tunable properties, and cost effectiveness. PNCs showed fast decontamination ability with high sele-ctivity to remove various pollutants. This review provides up-to-date information about the importance of PNCs in the removal of metal ions, dyes, and microorganism from polluted water. The general methodology for preparation and properties of nanocomposites with reference to PNCs is given. Different adsorption isotherm and kinetic models along with thermodynamic parameters for adsorption have been discussed.
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