This article gives you proof that bimetallic transition metal clusters with the difference in electronegativity are better catalysts than monoatomic one. To prove this fact, a study of ethylene adsorption on bimetallic clusters vanadium-nickel VnNim (2≤n+m≤6) has been demonstrated. Our result shows that hardness has a quite good linear correlation with the non-Lewis of VnNi (n=1-5) cluster (R2=...

Clusters play important role for understanding and transferring microscopic to macroscopic properties.Geometric and electron properties of Small nickel clusters up to the tetramer has been investigated by Density Functional Theory (DFT). Raising the number of nickel clusters atoms were indicated decreasing the average equilibrium (Ni-Ni) distance of atoms and also the binding energy of per atom...

background recent studies suggest that rare codon clusters are functionally important for protein activity. methods here, for the first time we analyzed and reported rare codon clusters in hepatitis c virus (hcv) genome and then identified the location of these rare codon clusters in the structure of hcv protein. this analysis was performed using the sherlocc program that detects statistically ...

This article presents a new feature extraction technique based on the temporal tracking of clusters in spectro-temporal features space. In the proposed method, auditory cortical outputs were clustered. The attributes of speech clusters were extracted as secondary features. However, the shape and position of speech clusters change during the time. The clusters temporally tracked and temporal tra...

Evolution of languages has always been of interest to linguists.  In this paper we study  the natural progress of the syllable structure from Old  Persian  (O.P)  to Middle Persian (Mi.P) and up to the Modern Persian (Mo.P). For this purpose all the words containing consonant sequences are collected from specific sources of each  of these  languages,  and then  analysed  according to the syllab...

in today's competitive world, maintaining competitive power of industries is the requirement of remaining in the competition. in the case of small industries, it also needs to think about strategies of making the industries more competitive in order to survive and have successful activity in competition. in many countries, one of the methods that have gained successful experience in increa...