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This work focused on the influence of processing conditions on the mechanical properties of polypropylene (PP) and PP/mesoporous silica-hydroxyapatite (PP/MCM-41-HA) hybrid nanocomposites. The mechanical properties of PP were enhanced by adding MCM-41-HA nanoparticles. Neat PP and hybrid nanocomposites based on PP, containing maleic anhydride-grafted polypropylene (PP-g-MA) and MCM-41-HA, were ...
Disa Conference), edited by DJ Cockrell. Leicester, England, Leicester University Press, 1972, pp 298-304 9. Clark A: Thin film gauges for fluctuating velocity measurements in blood. J Sci Instrum 7: 548-556, 1974 10. Ling SC, Atabek HB, Fry DL, Patel DJ, Janicki JS: Application of heated-film velocity and shear probes to hemodynamic studies. Circ Res 23: 789-801, 1968 11. Yellin EL: Hydraulic ...
BACKGROUND The effect of antiretroviral treatment (ART) eligibility expansions on patient outcomes, including rates of timely ART initiation among those enrolling in care, has not been assessed on a large scale. In addition, it is not known whether ART eligibility expansions may lead to "crowding out" of sicker patients. METHODS AND FINDINGS We examined changes in timely ART initiation (withi...
PP-g-PS copolymer is a typical compatilizer used in polypropylene and polystyrene immiscible blends. PP-g-PS copolymers with different side chain lengths were synthesized, and their thermal and mechanical properties were characterized by differential scanning calorimetry (DSC), polarizing optical microscopy (POM) and dynamic mechanical analysis (DMA), respectively. The DSC and POM results show ...
La plupart des jeunes qui ne trouvent pas d'emploi après leurs études ont droit, au terme d’une période non indemnisée d’un an, à une allocation de chômage, appelée « d'insertion ». En 2015, le gouvernement Michel a supprimé droit cette pour deux groupes : les plus 25 ans et moins 21 sans diplôme d'études secondaires. L'objectif était d'inciter chercher davantage un emploi quitter l'école préma...
J.A. MacGillivray and L.H. Sackett, with contributions by J.N. Bottema-Mac Gillavry, T.F. Cunningham, C. Doherty, J.M. Driessen, D. Evely, P. Jerome, O.H. Krzyszkowska, Mylona, Reese, J. Russell, A. Sarpaki, S. Wall-Crowther, Westlake G. Younger, Palaikastro Building I. British School at Athens Supplementary Volume 48. pp. 614; col. frontispiece; 78 B/W plates; 280 figures (1 fold-out); 6 table...
In this work, a series of polypropylene/polyvinyl butyral (PP/PVB) blends were prepared by melt-blending process, at PVB loadings 3 wt%, 10 wt%, and 30 wt%. The effects of PVB on crystallization behavior of PP were investigated by differential scanning calorimetry (DSC), and polarized optical microscopy (POM). The isothermal crystallization kinetics were analyzed by Avrami equations. It was fou...
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