Results 21 to 30 of about 120,896 (238)
Eccentric topological properties of a graph associated to a finite dimensional vector space
Main Group Metal Chemistry, 2020 A topological index is actually designed by transforming a chemical structure into a number. Topological index is a graph invariant which characterizes the topology of the graph and remains invariant under graph automorphism.
Liu Jia-Bao +5 more
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Computation of Edge Resolvability of Benzenoid Tripod Structure
Journal of Mathematics, 2021 In chemistry, graphs are commonly used to show the structure of chemical compounds, with nodes and edges representing the atom and bond types, respectively.
Ali Ahmad +4 more
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Simulation methods of rigid holonomic multibody systems with bond graphs
Advances in Mechanical Engineering, 2019 Bond graph software can simulate bond graph models without the user needing to manually derive equations. This offers the power to model larger and more complex systems than in the past.
Benjamin Boudon +4 more
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The Dynamic Modelling and Simulation of Spatial Multibody Systems with Prismatic Joint Based on Vector Bond Graph [PDF]
Advanced Materials Research, 2012 For the modelling and simulation of complex spatial multibody systems, the vector bond graph method is proposed. By the kinematic constraint condation, spatial prismatic joint can be modeled by vector bond graph. For the algebraic difficulties brought by differential causality in system automatic modeling and simulation, the effective decoupling method
Shang Liu +2 more
openaire +1 more source
Graph Networks as a Universal Machine Learning Framework for Molecules and Crystals [PDF]
, 2019 Graph networks are a new machine learning (ML) paradigm that supports both relational reasoning and combinatorial generalization. Here, we develop universal MatErials Graph Network (MEGNet) models for accurate property prediction in both molecules and ...
Chen, Chi +4 more
core +4 more sources
Jixie chuandong, 2021 For the dynamics modeling， simulation and analysis of a triangular connecting rod toggle press mechanism with considering the kinematic pair clearance， the corresponding vector bond graph procedure is proposed. Based on the kinematic pair clearance model
Zhongshuang Wang, Jiuzheng Yin
doaj
Quantum ergodicity for quantum graphs without back-scattering [PDF]
, 2015 We give an estimate of the quantum variance for $d$-regular graphs quantised with boundary scattering matrices that prohibit back-scattering. For families of graphs that are expanders, with few short cycles, our estimate leads to quantum ergodicity for ...
Brammall, Matthew, Winn, Brian
core +2 more sources
Bounding basic characteristics of spatial epidemics with a new percolation model
, 2010 We introduce a new percolation model to describe and analyze the spread of an epidemic on a general directed and locally finite graph. We assign a two-dimensional random weight vector to each vertex of the graph in such a way that the weights of ...
Meester, Ronald, Trapman, Pieter
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AKLT Models with Quantum Spin Glass Ground States
, 2010 We study AKLT models on locally tree-like lattices of fixed connectivity and find that they exhibit a variety of ground states depending upon the spin, coordination and global (graph) topology. We find a) quantum paramagnetic or valence bond solid ground
C. R. Laumann +6 more
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(2-Hydroxy-7-methoxynaphthalen-1-yl)(4-methylphenyl)methanone
Acta Crystallographica Section E, 2010 In the title compound, C19H16O3, an intramolecular O—H...O=C hydrogen bond is formed between the hydroxy and carbonyl groups on the naphthalene ring system, resulting in an S(6) ring. The angles between the C=O bond vector and the least-squares
Atsushi Nagasawa +3 more
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