Results 111 to 120 of about 4,883,509 (244)

Extreme Atom-Bond Connectivity Index of Graphs

open access: yes, 2011
NSFC [10831001]The atom-bond connectivity (ABC) index of a graph G, is defined as the sum of the weights (d(u) + d(v) - 2/d(u)d(v))(1/2) of all edges uv of G, where d(u) denotes the degree of a vertex u in G.
Chen, J. S., 郭晓峰, Guo, X. F.
core  

An atom-bond connectivity index: Modelling the enthalpy of formation of alkanes [PDF]

open access: yes, 1998
849-855The atom-bond connectivity index (ABC), a novel graph theoretical invariant, based on the connectivity between atoms and bonds in a molecule, is proposed.
Torres, Luis   +3 more
core  

Hydrophobic MFI‐Type Zeolites via Alkali‐Cation‐Induced Defect Healing: Implications for Adsorbent and Catalyst Design

open access: yesAdvanced Materials, EarlyView.
Sub‐stoichiometric amounts of Na+ or K+ enhance defect healing during Silicalite‐1 (MFI) and TS‐1 calcination by promoting Si–O–Si annealing and healing framework vacancies. The resulting defect‐free zeolites are more hydrophobic and show improved butanol/water separation and improved activity and selectivity in the epoxidation of 1‐hexene, offering a ...
Christos Kanteler   +14 more
wiley   +1 more source

The fifth version of atom bond connectivity index (ABC(5)) of an infinite class of dendrimers

open access: yes, 2011
The atom-bond connectivity index-5(ABC(5)) is a new topological index defined as; ABC(5)(G) = Sigma(uv is an element of E(G)) root M-u + M-v - 2/MuMv where M-u denotes the product of the degrees of adjacent vertices of u.
Calimli, Mehmet Harbi
core   +1 more source

Polymeric Sorbents as Energy‐Efficient Alternative to Cryogenic Distillation for Light Hydrocarbon Purification

open access: yesAdvanced Materials, EarlyView.
The transition from cryogenic distillation to polymeric sorbents for light hydrocarbon purification is crucial for energy and environmental sustainability. The polymeric sorbents are engineered to separate gas mixtures based on their specific properties.
Kelechi Festus   +9 more
wiley   +1 more source

Flax Composites With Improved Interfacial Strength Through Microbially Induced Mineral Precipitation

open access: yesAdvanced Materials, EarlyView.
A bio‐inspired biomineralization strategy introduces an additional hierarchy to flax fiber composites. By controlling microbe‐mediated mineral particle deposition through tuned salt concentrations, stress transfer within the natural fiber composite is enhanced.
Deniz Sayinbas   +5 more
wiley   +1 more source

Polyphenol‐Inspired Materials for Agricultural Applications

open access: yesAdvanced Materials, EarlyView.
This review outlines the use of polyphenol‐inspired materials for sustainable agriculture, highlighting their molecular design, interfacial assembly, structure–property relationships, and prospects toward precision agriculture, climate resilience, ecosystem protection, and circular bioeconomy strategies.
Haofu Liu   +8 more
wiley   +1 more source

Elastomeric 3D‐Printed Microenvironments Enable Nanonewton Force Measurements in Healthy and Diseased Human Pluripotent Stem Cell‐Derived Neuroepithelial Cells

open access: yesAdvanced Materials, EarlyView.
We present elastomeric three‐dimensional (3D) microstructures fabricated via two‐photon polymerization (2PP) and post‐processed through wet etching, for quantifying nanonewton (nN)‐scale forces applied by healthy and diseased neural cells. The mechanically characterized free‐standing beam architectures enable measurement of traction forces of ...
Pieter F. J. van Altena   +7 more
wiley   +1 more source

Engineering Metal‐Pocket Cooperativity in Single‐Atom COF Nanozymes for Selective Cascade Catalysis

open access: yesAdvanced Materials, EarlyView.
A multilevel programming strategy is developed to engineer single‐atom COF nanozymes with tunable metal centers and chiral pockets inspired by heme–pocket cooperativity. This approach enables controlled metal–pocket interplay for asymmetric cascade catalysis, delivering high activity, selectivity, and recyclability in an asymmetric oxidation–aldol ...
Ziping Li   +7 more
wiley   +1 more source

Atom-bond connectivity index of graph with two edges added

open access: yes, 2016
The atom-bond connectivity index of a graph G, denoted as ABC(G), is defined as the sum of the weight r du + dv ? 2 dudv of all edges uv of G, where du (or dv) denotes the degree of vertex u (or v) in G.
Anis Amalina
core  

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