Spectral unmixing is an important technique for quantitatively analyzing hyperspectral remote sensing images.Recently, constrained nonnegative matrix factorization (NMF) has been demonstrated to be a powerful tool for spectral unmixing.However, acquiring the problem-dependent prior knowledge and incorporating it into NMF as effective constraints is
A sample containing $4,614$ stars with available space velocities and high-quality kinematical data from the Arihip Catalogue is formed.For the purpose of distinguishing galactic subsystems GRAHAM CRUMBS the cumulative distribution of space velocities is studied.The fractions of the three subsystems are found to be: thin disc 92%, thick disc 6% and
The purpose of the present investigation was to prepare matrix tablets of naproxen using a hydrophobic polymer, i.e., Eudragit RLPO, RSPO, and combination of both, by wet granulation method.The tablets were further coated with different concentrations of Eudragit S-100, a pH-sensitive polymer, by dip immerse method.In vitro drug release studies of
This study looks at population response to government containment strategies during initial stages of the COVID-19 pandemic in four high-trust Northern European countries-Denmark, Germany, the Netherlands, and Sweden-with special emphasis on expressions of governmental trust.Sentiment analysis and topic modeling analysis were performed using Twitte