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By a ball-milling method, graphite nanofibers (GNF) were prepared from used carbon paper in proton exchange membrane fuel cells. All the results conducted at 80 t-an operational temperature of proton exchange membrane fuel cells. The specific surface area of GNF was 229 m2/g, and mesopore volume was 0.146 crnVg. The morphology of Pt/GNF and Pt/C catalysts was characterized by transmission electron...
It is widely considered that standardization is an important means for information processing, exchanging, managing and clearing up technical bulwark more effectively. The paper studied the theoretics and methods about the SaaS platform. After analyzing the issues of standardization and existing standards for sustainable development information sharing (SDIS) such as XML, RosettaNet and so on. The...
The paper analyzes the current situation of business environment and business intelligence systems (BIS) framework at first, and studies the theoretics and methods about the business intelligence system based on ontology. Based on ontology, this paper proposes an integration framework for business intelligence systems. A service resource based-ontology is proposed in this research, including the data...
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