Comparative Study of Certain Synthetic Polymers via Bond-Additive Invariants
IEEE Access, 2021 Polymers, like vulcanized rubber, bakelite, and poly-methyl methacrylate (PMMA), are widely utilized as denture based materials, and their prominence has been nothing short of excellent. Recently, Ahmad et al.
Maqsood Ahmad +2 more
doaj +1 more source
On Degree-Based Topological Indices of Thermodynamic Cuboctahedral Bi-Metallic Structure
Journal of Mathematics, 2022 Porous material such as metal-natural constructions and their particular partner metal-natural poly-hydra are made up of inorganic clusters with no saturation and exhibit great capability for utilization in the absorption of gas and ascending opening in ...
Guozhen Ma +4 more
doaj +1 more source
Block Iterative Eigensolvers for Sequences of Correlated Eigenvalue Problems [PDF]
, 2013 In Density Functional Theory simulations based on the LAPW method, each self-consistent field cycle comprises dozens of large dense generalized eigenproblems.
Berljafa, Mario, Di Napoli, Edoardo
core +2 more sources
Topological Indices of the Pent-Heptagonal Nanosheets VC5C7 and HC5C7
Advances in Materials Science and Engineering, 2019 In this paper, we computed the topological indices of pent-heptagonal nanosheet. Formulas for atom-bond connectivity index, fourth atom-bond connectivity index, Randić connectivity index, sum-connectivity index, first Zagreb index, second Zagreb index ...
Fei Deng +4 more
doaj +1 more source
Testing the quality of molecular structure descriptors. Vertex-degree-based topological indices [PDF]
Journal of the Serbian Chemical Society, 2013 The correlation ability of 20 vertex-degree-based topological indices, occurring in the chemical literature, is tested for the case of standard heats of formation and normal boiling points of octane isomers. It is found that the correlation ability of
Gutman Ivan, Tošović Jelena
doaj +1 more source
Progressivity of personal income tax in Croatia: decomposition of tax base and rate effects [PDF]
, 2006 This paper presents progressivity breakdowns for Croatian personal income tax (henceforth PIT) in 1997 and 2004. The decompositions reveal how the elements of the system – tax schedule, allowances, deductions and credits – contribute to the achievement ...
Urban, Ivica
core +2 more sources
Microelectrode recordings from the human cervical vagus nerve during maximal breath-holds. [PDF]
Exp PhysiolAbstract Voluntary breath‐holds can be sustained for a long time following training, but ultimately, regardless of duration, the asphyxic break‐point is reached and the apnoea terminated. The physiological changes occurring during the apnoea include a marked increase in sympathetically‐mediated vasoconstriction in non‐essential organs, such as skeletal
Macefield VG +7 more
europepmc +2 more sources
Multiplicative Topological Properties on Degree Based for Fourth Type of Hex-Derived Networks
Journal of Function Spaces, 2022 Chemical graph theory is a subfield of graph theory that uses a molecular graph to describe a chemical compound. When there is at least one connection between the vertices of a graph, it is said to be connected.
Haidar Ali +4 more
doaj +1 more source
On Computation Degree-Based Topological Descriptors for Planar Octahedron Networks
Journal of Mathematics, 2021 A molecular graph is used to represent a chemical molecule in chemical graph theory, which is a branch of graph theory. A graph is considered to be linked if there is at least one link between its vertices.
Wang Zhen +4 more
doaj +1 more source