999 resultados para Bi-segmented regression
Resumo:
1879/12/15 (A1,N24).
Resumo:
1901/09/01 (A23,N15).
Resumo:
1893/11/01 (A15,N21).
Resumo:
1881/05/01 (A3,N9).
Resumo:
1887/11/15 (A9,N22).
Resumo:
1900/04/01 (A22,N7).
Resumo:
1889/12/15 (A11,N24).
Resumo:
1880/01/01 (A2,N1).
Resumo:
1898/02/15 (A20,N4).
Resumo:
1902/05/15 (A24,N10).
Resumo:
1901/09/15 (A23,N16).
Resumo:
Acetylation was performed to reduce the polarity of wood and increase its compatibility with polymer matrices for the production of composites. These reactions were performed first as a function of acetic acid and anhydride concentration in a mixture catalyzed by sulfuric acid. A concentration of 50%/50% (v/v) of acetic acid and anhydride was found to produced the highest conversion rate between the functional groups. After these reactions, the kinetics were investigated by varying times and temperatures using a 3² factorial design, and showed time was the most relevant parameter in determining the conversion of hydroxyl into carbonyl groups.
Resumo:
1904/06 (A26,N6)-1904/07 (A26,N7).
Resumo:
1893/11/15 (A15,N22).
Resumo:
1887/10/15 (A9,N20).
