نتایج جستجو برای: reforming
تعداد نتایج: 6522 فیلتر نتایج به سال:
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...
n engl j med 360;7 nejm.org february 12, 2009 653 fees.1 Congress appropriately feared the potential problems with access to care that could result from such a fee reduction. But although putting more money into the same broken physician-reimbursement system may buy lawmakers a little more time to address the need for a new one — helpful only if they use it to set the direction for a new system...
Trade Performance Depends on Bold Reform. The comparative study of What's inside ... he radical transformations of the fifteen countries of the former Soviet Union (FSU), along with those of the transition economies of Eastern Europe, are producing demographic trends never before seen in developed countries. These include declining birth rates in all fifteen countries, plunging some of them to ...
“Architecture” may seem a rather pretentious word to describe the ad hoc set of arrangements that make up the current international financial system . Even a reformed financial system will surely lack the clarity of structure and design that are the hallmarks of good architecture . But a financial system should nevertheless conform to certain broad principles, which can be readily understood an...
Many countries are in the earliest stage of reforming the care sector. Reformers face challenges as they develop public policy to expand family based care and shrink institutional care. To mention a few: installing the keystone component of care reform - a system to monitor and support children post-institutionalization; enabling children to grow up where they belong, in families; meeting child...
Direct internal reforming in solid oxide fuel cell (SOFC) results in increased overall efficiency of the system. Present study focus on the chemical and electrochemical process in an internally reforming anode supported SOFC button cell running on humidified CH4 (3% H2O). The computational approach employs a detailed multi-step model for heterogeneous chemistry in the anode, modified Butler–Vol...
The activity of Ni supported on mesoporous SBA-15, MCM-41, KIT-6, and a sol-gel prepared Ni/γAl2O3, for catalysing methane dry reforming was investigated. The chemical and physical characteristics of the catalysts before and after catalytic testing were investigated using X-Ray diffraction, X-ray Photoemission Spectroscopy, Transmission Electron Microscopy, Scanning Electron Microscopy / Energy...
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