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  1. Processing of poly(hydroxybutyrate-co-hydroxyvalerate)-based bionanocomposite foams using supercritical fluids

    Supercritical fluid (SCF) N2 was used as a physical foaming agent to fabricate microcellular injection-molded poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV)–poly(butylene adipate-co-terephthalate) (PBAT)–hyperbranched-polymer (HBP)–nanoclay (NC) bionanocomposites. The effects of incorporating HBP and NC on the morphological, mechanical, and...

    Author(s):
    Alireza Javadi; Yottha Srithep; Craig C. Clemons; L-S. Turng; Shaoqin Gong
    Year:
    2012
    Keywords:
    Nanoclay, Biopolymer, HPBV, Microcellular, hyperbranched polymer
    Source:
    Journal of Materials Research, Volume 27, Issue 11, 2012, pp. 1506 1517; 2012.

  2. Field validation of a free-agent cellular automata model of fire spread with fire–atmosphere coupling

    A cellular automata fire model represents ‘elements’ of fire by autonomous agents. A few simple algebraic expressions substituted for complex physical and meteorological processes and solved iteratively yield simulations for ‘super-diffusive’ fire spread and coupled surface-layer (2-m) fire–atmosphere processes. Pressure anomalies, which are integrals of the thermal...

    Author(s):
    Gary Achtemeier
    Year:
    2012
    Keywords:
    fire behavior, fire-atmosphere interaction, cellular automata
    Source:
    International Journal of Wildland Fire

  3. Microcellular poly(hydroxybutyrate-co-hydroxyvalerate)-hyperbranched polymer-nanoclay nanocomposites

    The effects of incorporating hyperbranched polymers (HBPs) and different nanoclays [Cloisite® 30B and halloysite nanotubes (HNT)] on the mechanical, morphological, and thermal properties of solid and microcellular poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) were investigated. According to the X-ray diffraction (...

    Author(s):
    Alireza Javadi; Yottha Srithep; Srikanth Pilla; Craig C. Clemons; Shaoqin Gong; Lih-Sheng Turng
    Year:
    2012
    Keywords:
    Nanoclay, Biopolymer, HPBV, Microcellular, hyperbranched polymer
    Source:
    POLYMER ENGINEERING AND SCIENCE, 51. pp. 1815-1826

  4. Piloted ignition of live forest fuels

    The most unpredictable and uncontrollable wildfires are those that burn in the crowns of live vegetation. The fuels that feed these crown fires are mostly live, green foliage. Unfortunately, little is known about how live fuels combust. To understand how live fuels burn, piloted ignition experiments were performed with lodgepole pine and Douglas-fir. The thermal...

    Author(s):
    S. McAllister; I. Grenfell; A. Hadlow; W. M. Jolly; M. Finney; J. Cohen
    Year:
    2012
    Keywords:
    ignition, moisture content, wildfire
    Source:
    Fire Safety Journal. 51: 133-142.
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