Results 51 to 60 of about 90,458 (256)
On Certain Aspects of Topological Indices
Journal of Mathematics, 2021 A topological index, also known as connectivity index, is a molecular structure descriptor calculated from a molecular graph of a chemical compound which characterizes its topology.
Tanweer Ul Islam +4 more
doaj +1 more source
Study of eccentricity based topological indices for benzenoid structure
South African Journal of Chemical Engineering, 2023 Topological indices play paramount role in defining chemical and structural properties of different compounds. Chemical graph theory is useful for predicting the bioactivity and physicochemical properties through numerical invariants.
Kamel Jebreen +5 more
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Advanced Functional Materials, EarlyView.Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco +7 more
wiley +1 more source
Degree-Based Topological Indices of Boron B12
Journal of Chemistry, 2021 Topological index sometimes called molecular descriptor is a numerical value which associates a chemical composition for correlating chemical structure with numerous physical properties, chemical reactivity, or biological activity.
Nouman Saeed +4 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Nanosecond pulse laser texturing yields superhydrophobic and superhydrophilic AA2024 surfaces. Salt‐spray tests show that periodic superhydrophobic patterns suppress pitting, whereas superhydrophilic textures enhance it, linking laser‐induced morphology, wettability, and oxide chemistry to corrosion resistance.
Lis Geraldine Zschach +8 more
wiley +1 more source
Topological aspects of some dendrimer structures
Nanotechnology Reviews, 2018 A numerical number associated to the molecular graph G that describes its molecular topology is called topological index. In the study of QSAR and QSPR, topological indices such as atom-bond connectivity index, Randić connectivity index, geometric index,
Aslam Adnan +3 more
doaj +1 more source
Eccentricity-Based Topological Indices of a Cyclic Octahedron Structure
Mathematics, 2018 In this article, we study the chemical graph of a cyclic octahedron structure of dimension n and compute the eccentric connectivity polynomial, the eccentric connectivity index, the total eccentricity, the average eccentricity, the first Zagreb index ...
Manzoor Ahmed Zahid +3 more
doaj +1 more source
Aestimum, 2023 Agricultural planning is a very complex task, since there are numerous goals, which should be achieved simultaneously, and various components and elements, which must be considered at the same time.
Masoud Masoudi, Elmira Asadifard
doaj +1 more source
Cusps of arithmetic orbifolds [PDF]
, 2006 This thesis investigates cusp cross-sections of arithmetic real, complex, and quaternionic hyperbolic $n$--orbifolds. We give a smooth classification of these submanifolds and analyze their induced geometry.
McReynolds, D. B.
core
Geometric contextuality from the Maclachlan-Martin Kleinian groups
, 2016 There are contextual sets of multiple qubits whose commutation is parametrized thanks to the coset geometry $\mathcal{G}$ of a subgroup $H$ of the two-generator free group $G=\left\langle x,y\right\rangle$.
Planat, Michel
core +3 more sources