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A novel composite nanofiltration membrane was prepared from O-carboxymethyl chitosan (O-CMC) and epoxy chloropropane (ECH) through coating and chemical cross-linking reaction on the polyacrylonitrile (PAN) supporting layer. O-CMC was synthesized from chitosan and monochloroacetic acid. Chemical structures and compositions of O-CMC and NF membranes were characterized by infrared spectroscopy, and morphological...
Our previous work identified thermal instability of p-type skutterudite as a primary cause of degradation during thermoelectric generator operation at 650°C. Residual Sb in the microstructure was believed to be the cause of diminished thermal stability, especially above the melting point of Sb (631°C). This work investigated addition of Nb to p-type skutterudite to from NbSb2, thus scavenging elemental...
A novel approach to designing stable fuzzy controllers with perception-based information using fuzzy-arithmetic-based Lyapunov synthesis in the frame of computing with words (CW) is presented. It is shown that a set of conventional fuzzy control rules can be derived from the perception-based information using the standard-fuzzy-arithmetic-based Lyapunov synthesis approach. On the other hand, a singleton...
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