In this study we developed LaNixAl1-xO3 perovskite systems using a sol-gelmethod (with propionic acid as solvent) to use in methane-reforming reactions for producing synthesis gas. To understand the roles of the nature of the precursor and calcination conditions on the formation of LaNixAl1-xO3, we carried out identifications using NMR, FT-IR, XRD, SEM, and TEM. The precursor struc...

steam reforming is one of the most important processes for producing hydrogen from hydrocarbon fuels such as lpg and has attracted much attention due to its high efficiency and economy. in this study, the lpg steam reforming reaction was investigated on nickel catalysts supported on four various zeolites (h-y, na-y, hzsm5 and ferrierite). the catalytic tests were performed in a tubular fixed be...

In 1981, under military government, Chile moved away from a badly-designed set of diverse defined-benefit plans (Soto 2007), and put in place a mandatory fully-funded defined-contribution plan in the formal sector, with a guaranteed minimum for workers with at least 20 years of contributions. Moving to such a plan was widely touted by the Chilean authorities, by some analysts, and by the World ...

There is some intuitive plausibility to the idea that composers create musical works by indicating sonic types in a historical context. But the idea is technically indefensible as it stands, requiring a thorough representational reform that also eliminates the type-theoretic commitments of current versions. On the reformed account, musical 'indication' is an operation of high level representati...

This article discusses a proposal for reform in thinking, grounded on Heisenberg’s principle of uncertanty, Chew’s bootstrap theory and Bohm’s implicated order. By synthetizing all three grounds together, it is concluded that thought ought to be turned the uncertainty phenomena. Behind lies an order, which mantains interactive pattern with onself, others world.

Compared with their higher-income counterparts, children growing up in low-income families in the United States typically complete less schooling, report worse health, and work and earn less in adulthood. Moreover, changes in the American economy over the last 40 years have raised the level of skills and qualifications that children need to obtain a good middle-class job, as well as making it m...