the electrocatalysis of the oxygen reduction reaction (orr) on carbon supportedpt-v (1:1) catalyst in polymer electrolyte fuel cells (pefc) was investigated. atan oxygen pressure of one atm an enhanced electrocatalytic property of pt-v/ccompared with pt/c is revealed. these results indicate the occurrence of adifferent electrocatalytic mechanism for the orr on pt/c and pt-v/c. anincrease of mas...

The first half of this paper constitutes the lecture given at the conference meeting, and contains some general discussion and a survey of the area. The second half gives proofs of some new results that were mentioned but not given. The reader interested only in these, (the theorems of the abstract) can turn to §2.2 Theorem 12 and §2.3. We assume at those points a working familiarity with fine ...

Nickel base superalloy alloys are used in the manufacture of gas turbine engine components, which in use are exposed to high temperatures and corrosive environments. The platinum aluminide coatings described here have been developed to protect nickel base superalloy alloys from oxidation. In this study, the effect of cyclic oxidation, platinum layer thickness and aluminizing process on beha...

abstract: the research at hand discusses about the notion of the theme in persian scientific and literary genres from the point of view of halliday’s systemic functional grammar (sfg) and explains and determines the similarities and differences of the two genres in persian language. in this research, after mentioning the obvious differences of the two genres from the point of view of theme type...

Collection and provision of all data, which may differ in spatial and time scales, and ensuring their long-term availability and readability are the primary goals of a central data management in a research project. One approach is setting up a central information system, which visualizes the manifold data of all subprojects in a uniform format and makes them publicly available. The setup and th...

In recently years, high-throughput experimental techniques such as microarray, RNA-Seq and mass spectrometry can detect cellular moleculars at systems-level. These kinds of analysis generate huge quantitaties of data, which need to be given a biological interpretation. A commonly used approach is via clustering in the gene dimension for grouping different genes based on their similarities(Yu et...

In addition to their roles in organizing the actin cytoskeleton, members of the Rho family of GTP-binding proteins have recently been implicated in a plethora of other functions, including the activation of kinase cascades and transcription factors, and the control of endocytosis and secretion. Alongside this expansion is proposed functions has been the identification of multiple target protein...