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McMaster, Heather

doi:10.1023/a:1005475717321

Cited by 26 publications

(4 citation statements)

References 15 publications

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“…The main challenge for understanding the impact of climate change on severe thunderstorms is that they are not resolved in traditional climate modeling frameworks (Bindoff et al, 2013;Kunkel et al, 2013). Early studies on the effects of climate change on severe convection were limited by horizontal model resolution and limited computational resources (McMaster, 1999;Niall & Walsh, 2005). Increasing spatial and temporal resolution since the CMIP3 generation led to several studies that explored projected changes in convective environments in response to increasing CO 2 concentration (Allen et al, 2014b;Brimelow et al, 2017;Diffenbaugh et al, 2013;Glazer et al, 2020;Hoogewind et al, 2017;Mohr et al, 2015;Púčik et al, 2017;Rädler et al, 2019;Seeley & Romps, 2015;Singh et al, 2017;Trapp et al, 2007Trapp et al, , 2009, focusing primarily on the CONUS and more recently Europe.…”

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confidence: 99%

Future Global Convective Environments in CMIP6 Models

et al. 2021

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The response of climate extremes to increasing atmospheric CO 2 concentration has been studied in great depth in the last decade (Bindoff et al., 2013;Collins et al., 2013;Kunkel et al., 2013). The need to understand changes to these hazardous events motivated an IPCC report focused solely on the topic (Field et al., 2012, IPCC Special Report on Extremes, SREX). This report provided insight as to the limited confidence that the scientific community had in the expected changes of the extremes for a variety of processes (i.e., precipitation, temperature, wind speed, and tropical cyclones). The greatest confidence is attributable to quantities that are more easily modeled, for example, for extreme precipitation the report stated that it "was very likely that heavy precipitation events … would increase over most areas of the globe."

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confidence: 99%

Future Global Convective Environments in CMIP6 Models

et al. 2021

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“…Miscible blends with SAN weight fraction higher than 0.25 develop an interpenetrating co-continue morphology if they are above critical temperature [29,30]. Melt processing of these blends above the critical temperature leads to the double percolation phenomenon which reduces the MWCNT electrical percolation threshold concentration (see Fig.…”

Section: Resultsmentioning

confidence: 99%

Enhancing electrical properties of MWCNTs in immiscible blends of poly(methyl methacrylate) and styrene‐acrylonitrile copolymer by selective localization

Sarvi

Sundararaj

2014

Polymer Composites

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Multiwalled carbon nanotubes (MWCNTs) were introduced into poly(methyl methacrylate) (PMMA) and styrene‐acrylonitrile copolymer (SAN) blends by melt mixing in an asymmetric miniature mixer (APAM). A composition of 70 wt% of PMMA and 30 wt% of SAN was mixed to create a co‐continuous morphology. Transmission electron microscopy images of ultra‐microtomed samples (70 nm in thickness) showed selective localization of MWCNTs inside the percolated SAN phase. The occurrence of the double percolation phenomenon resulted in lower electrical percolation thresholds of PMMA/SAN/MWCNT blends molded at high temperatures. Dielectric spectroscopy indicated a higher electrical permittivity for samples that were compression molded at 260°C. Due to the higher affinity of MWCNTs to SAN, there was a migration of MWCNTs into the SAN phase during the melt processing. Conductivity measurements revealed a significant decrease in electrical percolation threshold (0.4 wt%) for PMMA70/SAN30 blends compared with MWCNT‐filled SAN and MWCNT‐filled PMMA (ca. 0.8 wt%). POLYM. COMPOS., 37:1523–1530, 2016. © 2014 Society of Plastics Engineers

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“…As the interfacial tension is directly proportional to domain size, CMC can be estimated from the plot of domain size versus copolymer concentration. 45 Many authors [46][47][48][49][50][51] have extensively reported this type of equilibration in the dispersed phase domain size upon the increasing addition of the compatibilizer. It is interesting to note that in most of the cases a 2.5-5% of the graft polymer is found to be sufficient for interfacial saturation.…”

Section: Morphology Of the Blendsmentioning

confidence: 99%

Reactive compatibilization of nylon copolymer/EPDM blends: experimental aspects and their comparison with theory

Komalan

George

Jacob

et al. 2007

Polymers for Advanced Techs

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In situ reactive compatibilization was first time applied to a low melting nylon (nylon 6 and 66 copolymer) and EPDM blend system. The effects of in situ compatibilization and concentration of compatibilizer on the morphology and mechanical properties of nylon/EPDM blends have been investigated. The influence of EPM-g-MA on the phase morphology was examined by the scanning electron microscopy (SEM) after preferential extraction of the minor phase. The SEM micrographs were quantitatively analyzed for domain size measurements. The compatibilizer concentrations used were 0, 1, 2.5, 5, and 10 wt%. The graft copolymer (nylon-g-EPM) formed at the interface showed relatively high emulsifying activity. A maximum phase size reduction was observed when 2.5 wt% of compatibilizer was added to the blend system. This was followed by a leveling-off at higher loadings indicating interfacial saturation. The conformation of the compatibilizer at the interface was deduced based on the area occupied by the compatibilizer at the blend interface. The experimental compatibilization results were compared with theoretical predictions of Noolandi and Hong. It was concluded that the molecular state of compatibilizer at interface changes with concentration. The in situ compatibilized blends showed considerable improvement in mechanical properties. Measurement of tensile properties shows increased elongation as well as enhanced modulus and strength up on compatibilization. At higher concentrations of compatibilizer, a leveling-off of the tensile properties was observed. A good correlation has been observed between the mechanical properties and morphological parameters.

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Untitled

Cited by 26 publications

References 15 publications

Future Global Convective Environments in CMIP6 Models

Future Global Convective Environments in CMIP6 Models

Enhancing electrical properties of MWCNTs in immiscible blends of poly(methyl methacrylate) and styrene‐acrylonitrile copolymer by selective localization

Reactive compatibilization of nylon copolymer/EPDM blends: experimental aspects and their comparison with theory

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