Documents disponibles écrits par cet auteur

Facile approach for superparamagnetic CNT - Fe3O4 / polystyrene tricomponent nanocomposite via synergetic dispersion / Wu Zhong in Industrial & engineering chemistry research, Vol. 51 N° 37 (Septembre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 37 (Septembre 2012) . - pp. 12017–12024 Titre : Facile approach for superparamagnetic CNT - Fe3O4 / polystyrene tricomponent nanocomposite via synergetic dispersion Type de document : texte imprimé Auteurs : Wu Zhong, Auteur ; Peng Liu, Auteur ; Zhaobin Tang, Auteur Année de publication : 2012 Article en page(s) : pp. 12017–12024 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Nanocomposite  Synergetic  dispersion Résumé : A facile one-pot in-situ radical bulk polymerization strategy was developed for preparation of the superparamagnetic multiwalled carbon nanotubes-Fe3O4/polystyrene (CNT-Fe3O4/PS) tricomponent nanocomposite by the synergetic dispersion strategy via the multiwalled carbon nanotubes (CNT) immobilized Fe3O4 nanoparticles (CNT-Fe3O4) with oleic acid (OA) as surface modifier. Compared with the tricomponent nanocomposite prepared with the multiwalled carbon nanotubes and Fe3O4 nanoparticles added separately, immobilization of Fe3O4 nanoparticles on multiwalled carbon nanotubes could avoid efficiently aggregation of the Fe3O4 nanoparticles in polymer matrices. OA molecules adsorb onto the surfaces of the Fe3O4 nanoparticles immobilized on the multiwalled carbon nanotubes, improving efficiently the dispersibility of the multiwalled carbon nanotubes in styrene, which resulted in the well-dispersed CNT-Fe3O4/PS tricomponent nanocomposite. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie300891h [article] Facile approach for superparamagnetic CNT - Fe3O4 / polystyrene tricomponent nanocomposite via synergetic dispersion [texte imprimé] / Wu Zhong, Auteur ; Peng Liu, Auteur ; Zhaobin Tang, Auteur . - 2012 . - pp. 12017–12024. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 37 (Septembre 2012) . - pp. 12017–12024 Mots-clés : Nanocomposite  Synergetic  dispersion Résumé : A facile one-pot in-situ radical bulk polymerization strategy was developed for preparation of the superparamagnetic multiwalled carbon nanotubes-Fe3O4/polystyrene (CNT-Fe3O4/PS) tricomponent nanocomposite by the synergetic dispersion strategy via the multiwalled carbon nanotubes (CNT) immobilized Fe3O4 nanoparticles (CNT-Fe3O4) with oleic acid (OA) as surface modifier. Compared with the tricomponent nanocomposite prepared with the multiwalled carbon nanotubes and Fe3O4 nanoparticles added separately, immobilization of Fe3O4 nanoparticles on multiwalled carbon nanotubes could avoid efficiently aggregation of the Fe3O4 nanoparticles in polymer matrices. OA molecules adsorb onto the surfaces of the Fe3O4 nanoparticles immobilized on the multiwalled carbon nanotubes, improving efficiently the dispersibility of the multiwalled carbon nanotubes in styrene, which resulted in the well-dispersed CNT-Fe3O4/PS tricomponent nanocomposite. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie300891h

Pavement structures damage caused by Hurricane Katrina flooding / Zhongjie Zhang in Journal of geotechnical and geoenvironmental engineering, Vol. 134 N°5 (Mai 2008) 

Public ISBD [article]  in Journal of geotechnical and geoenvironmental engineering > Vol. 134 N°5 (Mai 2008) . - pp. 633–643 Titre : Pavement structures damage caused by Hurricane Katrina flooding Type de document : texte imprimé Auteurs : Zhongjie Zhang, Auteur ; Wu Zhong, Auteur ; Mark Martinez, Auteur Année de publication : 2008 Article en page(s) : pp. 633–643 Note générale : Geotechnical and geoenvironmental engineering Langues : Anglais (eng) Mots-clés : Hurricanes  Floods  Damage  Pavements  Statistics  Louisiana Résumé : In September of 2005, Hurricane Katrina devastated New Orleans and caused sustained flooding. Limited pre- and postflooding tests indicated that the pavement structures tested were adversely impacted by the flood water. Consequently, the Louisiana Dept. of Transportation and Development hired an independent contractor to structurally test approximately 383 km ( [Math Processing Error] ) of the region’s federally aided urban highway system both inside and outside of the flooding area. Falling weight deflectometer (FWD) tests were performed every 161 m ( [Math Processing Error] ) over each selected roadway, along with other field tests. The FWD data were imported into a geographical information system and plotted against a USGS geo-referenced map. Comparative analyses were made possible through the use of extensive flood maps made available through NOAA and FEMA. This arrangement made it possible to classify spatially and graphically all test points on the basis of flooding versus nonflooding, short flooding duration versus longer flooding duration, shallow flooding versus deep flooding, and thin pavements versus thick pavements. Three pavement types, asphaltic concrete, Portland cement concrete, and composite, were considered in this analysis. The statistical inference about the difference in the means of compared data groups was conducted with 95% confidence. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%291090-0241%282008%29134%3A5%2863 [...] [article] Pavement structures damage caused by Hurricane Katrina flooding [texte imprimé] / Zhongjie Zhang, Auteur ; Wu Zhong, Auteur ; Mark Martinez, Auteur . - 2008 . - pp. 633–643. Geotechnical and geoenvironmental engineering Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 134 N°5 (Mai 2008) . - pp. 633–643 Mots-clés : Hurricanes  Floods  Damage  Pavements  Statistics  Louisiana Résumé : In September of 2005, Hurricane Katrina devastated New Orleans and caused sustained flooding. Limited pre- and postflooding tests indicated that the pavement structures tested were adversely impacted by the flood water. Consequently, the Louisiana Dept. of Transportation and Development hired an independent contractor to structurally test approximately 383 km ( [Math Processing Error] ) of the region’s federally aided urban highway system both inside and outside of the flooding area. Falling weight deflectometer (FWD) tests were performed every 161 m ( [Math Processing Error] ) over each selected roadway, along with other field tests. The FWD data were imported into a geographical information system and plotted against a USGS geo-referenced map. Comparative analyses were made possible through the use of extensive flood maps made available through NOAA and FEMA. This arrangement made it possible to classify spatially and graphically all test points on the basis of flooding versus nonflooding, short flooding duration versus longer flooding duration, shallow flooding versus deep flooding, and thin pavements versus thick pavements. Three pavement types, asphaltic concrete, Portland cement concrete, and composite, were considered in this analysis. The statistical inference about the difference in the means of compared data groups was conducted with 95% confidence. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%291090-0241%282008%29134%3A5%2863 [...]