Articles with "block lengths" as a keyword



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The effect of PCL/PEG ABA block lengths on the crystallization of homo/block- based polyurethane/CNW nanocomposites

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Published in 2021 at "Journal of Polymer Research"

DOI: 10.1007/s10965-020-02376-y

Abstract: We report synthesis and characterization of a set of thermoset polyurethane (PU) bionanocomposites based on a polyol blend of poly(ε-caprolactone)/ polyethylene glycol (PCL/PEG) ABA block copolymers and their homopolymers (M w : 2000 D). ABA… read more here.

Keywords: block lengths; block; aba block; pcl peg ... See more keywords
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Determining Critical Rail Line Blocks and Minimum Train Headways for Equal and Unequal Block Lengths and Various Train Speed Scenarios

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Published in 2017 at "Engineering Journal"

DOI: 10.4186/ej.2017.21.3.281

Abstract: This paper presents a primary model to maximize rail line capacity by minimizing the train headway, defining block time as the time when a train first enters until it leaves the block. The analysis was… read more here.

Keywords: block lengths; block; rail line; speed ... See more keywords