Results 61 to 70 of about 4,883,509 (244)
Computing Fourth Atom-bond Connectivity Index of V-Phenylenic Nanotubes and Nanotori
Acta Chimica Slovenica, 2013 Among topological descriptors connectivity topological indices are very important and they have a prominent role in chemistry. One of them is atom-bond connectivity (ABC) index defined as ABC(G)= [formula:see text], in which degree of vertex v denoted ...
Mohammad Reza Farahani
doaj
Atom-bond sum-connectivity index of line graphs [PDF]
Discrete Mathematics Letters, 2023 Yanyan Ge, Zhen Lin, Jiajia Wang
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Advanced Functional Materials, EarlyView.A multicomponent supramolecular hydrogel integrating cell‐adhesive and antibacterial peptides within an alginate‐cellulose nanofibril matrix is developed. Peptide co‐assembly simultaneously strengthens the hydrogel network, improves extrusion printability, and imparts cell‐adhesive and antibacterial functions, offering a versatile platform for ...
Mor Tsuriano‐Zernichov +4 more
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2D Co‐Assembly of Solid Acids Enables Stable Superprotonic Conduction Above 260°C
Advanced Functional Materials, EarlyView.A two‐dimensional co‐assembly strategy integrates antimony phosphate and phosphotungstic acid nanosheets into free‐standing inorganic lamellar membranes with confined acid–acid interfaces. The resulting interfacial hydrogen‐bond network enables anhydrous proton conductivity exceeding 0.1 S cm−1 at 260°C and supports stable high‐temperature fuel‐cell ...
Qiuning Li +8 more
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On atom-bond connectivity molecule structure descriptors [PDF]
, 2016 The atom-bond connectivity index (ABC) is a degree-based molecular structure descriptor with well-documented chemical applications. In 2010, a distance-based new variant of this index (ABCGG ) was proposed.
Gutman I., das, kinkar, Furtula, Boris
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On the eccentric atom-bond sum-connectivity index of trees and unicyclic graphs with given diameter
Open MathematicsThe eccentric atom-bond sum-connectivity index (ABSC e) of a graph G is defined as ABSCe(G)=∑uv∈E(G)eu+ev−2eu+ev $ABS{C}_{e}\left(G\right)={\sum }_{uv\in E\left(G\right)}\sqrt{\frac{{e}_{u}+{e}_{v}-2}{{e}_{u}+{e}_{v}}}$ , where e u and e v represent the ...
Song Rui
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Analysis of expected value of connectivity indices of random 2T2 kink chains
Frontiers in PhysicsIn this work, we calculated the product connectivity index of three structures for the T2-type twists and formulated expressions of expected values of the forgotten index, atom bond connectivity index, sum connectivity index, product connectivity index ...
Xuemin Ling +8 more
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Study of Hardness of Superhard Crystals by Topological Indices
Journal of Chemistry, 2021 Topological indices give immense information about a molecular structure or chemical structure. The hardness of materials for the indentation can be defined microscopically as the total resistance and effect of chemical bonds in the respective materials.
Xiujun Zhang +3 more
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Advanced Functional Materials, EarlyView.Polarity‐matched Zr–MOFs program Nafion's nanoscale morphology during solution casting. Hydrophilic UiO‐66 preserves hydrated pathways, while hydrophobic UiO‐67 increases the proton hopping sites by densifying ionic clusters. Combining both fillers yields a membrane that delivers 176 mS cm−1 conductivity, reaches 1.46 W cm−2 under 200 kPa, and triples ...
Yonghwi Cho +13 more
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Some Topological Invariants of Graphs Associated with the Group of Symmetries
Journal of Chemistry, 2020 A topological index is a quantity that is somehow calculated from a graph (molecular structure), which reflects relevant structural features of the underlying molecule.
Chang-Cheng Wei +6 more
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