A Mixed Method for the Elastoplastic Torsion Problem

In this paper a mixed formulation for the elastoplastic torsionproblem is given. This formulation is discretized with the finiteelements of Raviart & Thomas (1977) and error estimatesare obtained. For solving the (non-linear) approximated probleman iterative algorithm is proposed and analysed.     

炼钢渣和炭的混合物用于微波辅助甲烷干气重整反应(英文)

The use of steel-making slag as catalysts for microwave-assisted dry reforming of CH4 was studied. Two carbon materials (an activated carbon and a metallurgical coke), mixtures of the carbon materials and Fe-rich slag, and mixtures of the carbon materials and Ni/Al2O3 were tested as catalysts. The mixtures of slag with carbons gave rise to higher and steadier conversions than those achieved over the carbon materials alone. In addition, the use of the metallurgical coke mixed with metal-rich catalysts gave rise to remarkable results. Thus, no CH4 and CO2 conversions were achieved when coke was used alone, whereas high conversions were obtained when it was mixed with the metal-rich catalysts.