Carbon fibres show great potential as multifunctional negative electrode for novel structural battery composites – a rechargeable electrochemical cell with function. The performance of carbon materials can be enhanced nitrogen heteroatoms, which conveniently are inherent in polyacrylonitrile (PAN)-based fibres. However, it is not fully understood how the governed by microstructure and compositi...

We show that most connectivity types of simple directed graphs defined by A. Ádám in [1] are nonempty. The nonexistence of the three types that remain missing is the consequence of a fairly plausible conjecture, stated at the end of this paper. Introduction This paper gives an almost complete answer to a question raised by A. Ádám in [1] concerning the connectivity types of simple directed grap...

The atom-bond connectivity index of graph is a topological index proposed by Estrada et al. as ABC (G)  uvE (G ) (du dv  2) / dudv , where the summation goes over all edges of G, du and dv are the degrees of the terminal vertices u and v of edge uv. In the present paper, some upper bounds for the second type of atom-bond connectivity index are computed.

Background Policy makers need models to be able to detect groups at high risk of HIV infection. Incomplete records and dirty data are frequently seen in national data sets. Presence of missing data challenges the practice of model development. Several studies suggested that performance of imputation methods is acceptable when missing rate is moderate. One of the issues which was of less concern...

background: the aim of the article is demonstrating an application of multiple imputation (mi) for handling missing clinical data in the setting of rheumatologic surveys using data derived from 10291 people participating in the first phase of the community oriented program for control of rheumatic disorders (copcord) in iran . methods: five data subsets were produced from the original data set....

The title compound, [Au(III)Cl(2)(C(12)H(12)N(2))](2)[Au(III)Cl(4)][Au(I)Cl(2)], contains three distinct types of Au atom. In the cation, the Au(III) atom is four-coordinated in a distorted square-planar arrangement by an N,N'-bidentate 5,5'-dimethyl-2,2'-bipyridine ligand and two terminal Cl atoms. In the [AuCl(4)](-) anion, the centrosymmetric Au(III) atom has a square-planar coordination. Th...

Study of a comprehensive evaluation of interaction mechanism of the doxorubicinwith affibody to prevent the cytotoxicity of the drug when such complex molecule are used as an specific targeted drug delivery, by an in silico approach such as interaction mode,binding constant and binding site.The analysis of DOX binding site to affibody suggested that the types of interactions that contribute in ...

We propose a scheme for localizing an atom in a four-level configuration inside a classical standing wave field, conditioned upon the measurement of frequency of a weak probe field. In the classical standing wave field, the interaction between the atom and the field is position dependent due to the Rabi-frequency of the driving field. Hence, as the absorption frequency of the probe field is mea...

It is shown that the superconducting transition temperature for compounds in seven different structure types exhibits a peak at about 3.7 to 3.9 valence electrons per atom.