Wood polymer composites (WPC) are sensitive to moisture because of the hydrophilic nature wood fibers. The main objective this study was improve dimensional stability WPCs by coating. Polypropylene and polylactic acid were reinforced three pulp fibers (kraft, thermomechanical (TMP), chemothermomechanical (CTMP)) at fiber contents (50, 60, 70% w/w). resulting coated using two commercial coatings...

We introduce the notion of super-state automaton constructed from another automaton. This construction is used to solve an open question about enumerative sequences in rational trees. We prove that any IN-rational sequence s = (sn) n0 of nonnegative integers satisfying the Kraft inequality P n0 snk ?n 1 is the enumerative sequence of leaves by height of a k-ary rational tree. This result had be...

An ultrasound-assisted extraction (UAE) method using ethanol was applied for extracting arabinogalactan (AG) and dihydroquercetin (DHQ) simultaneously from larch wood, as a pretreatment for pulping and papermaking. The extraction parameters were optimized by a Box-Behnken experimental design with the yields of AG and DHQ as the response values. Under optimum conditions (three extractions, each ...

In the course of utilization of moso bamboo, some fractions are not effectively utilized due to the weakness in mechanical properties. Only a part of these residues are recovered for energy production or made into activated carbon; the remainder are discarded resulting in environment pollution (Mui et al., 2008). As the bamboo residue is a kind of polysaccharides-rich lignocellulosic material, ...

persistente Zielverfolgung an prognostischer Kraft. 2 Eine ausführliche Darstellung der Metastudie zum Lernverhalten wird im August 2014 erscheinen: Schulmeister, R.: Auf der Suche nach Determinanten des Studienerfolgs.