Surface oxidized carbon vulcane XC-72 is prepared as catalyst support and platinumnanoparticles are chemically anchored onto the modified surface. The nanoparticles of Pt weresynthesized by reduction of H2PtCl6 with sodium borohydride in a 5.5 M buffer solution ofsodium citrate; the complexation of citrate with metal ions is beneficial to the formation ofnanoparticles. The electro-oxidation of ...

Abstract Steel sheet pile walls are being widely used in civil engineering projects for support systems. Soil is not uniform in depth, sometimes may be exit loose or soft soil layer in various depth. This issue can cause different effects on ground surface displacements, forces and moments acting on sheet piles and struts during excavation procedure, compared with status that soil is uniform...

in this paper, we present a multi-formalism modeling framework (abbreviated by mfmf) for modeling and simulation. the proposed framework is defined based on the concepts of meta-models and uses object-orientation to overcome the complexities and to enhance the extensibility. the framework can be used as a basis for modeling by various formalisms and to support model composition in a unified man...

It has been widely reported that the sintering productivity and bed permeability would be reduced when adopting ultra-deep sintering. To solve aforementioned problems, double-layer process with stand-support (DLSP-S) is proposed in this research to achieve of a 1000 mm bed. The results showed compared process, DLSP-S improved yield from 64.53% 1.76 t·m−2·h−1 66.74% 2.12 t·m−2·h−1, respectively....

EXTENDED ABSTRACT Mobility, from the perspective of a network, is the ability to change network points of attachment. Support for mobility can be provided at the link layer (e.g. cell phones, 802.11) or at the network layer (e.g. Mobile IP). Link layer solutions are limited to point-to-point connectivity choices between the mobile and a base station. Network layer solutions are limited to infor...