a series of x(co, mn)/tio2 catalysts (x=2–12wt.%) containing 25%co and 75%mn were prepared by the co-impregnation method. all prepared catalysts have been tested in fischer-tropsch synthesis for production of c2-c4 olefins. it was found that the catalyst containing 8wt.%(co,mn)/tio2 is an optimal catalyst for production of c2-c4 olefins. the effect of operation conditions such as the h2/co mola...

Modelos são abstrações que nos ajudam a compreender e agir sobre realidade (Fischer, 2001). Gestão de pessoas (GP) caracteriza-se como um conjunto políticas práticas permitem conciliação expectativas entre organização as pessoas, para ambas possam realizá-las ao longo do tempo (Dutra, Dutra, & 2017). Para compreendermos melhor estes modelos caracterizados, apresentaremos teorias autores dis...

In this article we construct an irreducible simple subgroup G = 〈q, y, t, w〉 of GL8671(13) from an irreducible subgroup T of GL11(2) isomorphic to Mathieu’s simple group M24 by means of Algorithm 2.5 of [13]. We also use the first author’s similar construction of Fischer’s sporadic simple group G1 = Fi23 described in [11]. He starts from an irreducible subgroup T1 of GL11(2) contained in T whic...