Results 31 to 40 of about 76,366 (278)

The biharmonic index of connected graphs

open access: yesAIMS Mathematics, 2022
Let $ G $ be a simple connected graph with the vertex set $ V(G) $ and $ d_{B}(u, v) $ be the biharmonic distance between two vertices $ u $ and $ v $ in $ G $.
Zhen Lin
doaj   +1 more source

Elucidating the material basis and potential mechanisms of Myricaria germanica acting on rheumatoid arthritis by UPLC-Q-TOF-MS /MS and network pharmacology

open access: yesPhytomedicine Plus, 2023
Objective: This study used the UPLC-Q-TOF-MS/MS technique, network pharmacology, and molecular docking technology to elucidate the molecular mechanism of action of Myricaria germanica against rheumatoid arthritis.
Likuan Liu   +6 more
doaj   +1 more source

A numerical study of two-phase flow with dynamic capillary pressure using an adaptive moving mesh method [PDF]

open access: yes, 2016
Motivated by observations of saturation overshoot, this paper investigates numerical modeling of two-phase flow incorporating dynamic capillary pressure.
Zegeling, Paul Andries, Zhang, Hong
core   +3 more sources

Minimal Surfaces with Arbitrary Topology in H^2xR [PDF]

open access: yes, 2020
We show that any open orientable surface S can be properly embedded in H^2xR as an area minimizing surface.Comment: 26 pages, 6 figures. With the editors' request, the paper splitted into two parts. The other part posted as APP for Tall Curves (arXiv:
Coskunuzer, Baris
core   +3 more sources

Extreme graphs on the Sombor indices

open access: yesAIMS Mathematics, 2022
Gutman proposed the concept of Sombor index. It is defined via the term $ \sqrt{d_F(v_i)^2+d_F(v_j)^2} $, where $ d_F(v_i) $ is the degree of the vertex $ v_i $ in graph $ F $.
Chenxu Yang   +3 more
doaj   +1 more source

On the sum of the largest $ A_{\alpha} $-eigenvalues of graphs

open access: yesAIMS Mathematics, 2022
Let $ A(G) $ and $ D(G) $ be the adjacency matrix and the degree diagonal matrix of a graph $ G $, respectively. For any real number $ \alpha \in[0, 1] $, Nikiforov defined the $ A_{\alpha} $-matrix of a graph $ G $ as $ A_{\alpha}(G) = \alpha D(G)+(1 ...
Zhen Lin
doaj   +1 more source

Simulating the current and future northern limit of permafrost on the Qinghai–Tibet Plateau [PDF]

open access: yesThe Cryosphere, 2022
Permafrost has been warming and thawing globally, with subsequent effects on the climate, hydrology, and the ecosystem. However, the permafrost thermal state variation in the northern lower limit of the permafrost zone (Xidatan) on the Qinghai–Tibet ...
J. Zhao   +26 more
doaj   +1 more source

The thinning of lamellae in surfactant-free foams with non-Newtonian liquid phase [PDF]

open access: yes, 2008
Thinning rates of liquid lamellae in surfactant-free non-Newtonian gas–liquid foams, appropriate for ceramic or polymer melts and also in metals near the melting point, are derived in two dimensions by matched asymptotic analysis valid at small capillary
Brush, L.B., Roper, S.M.
core   +1 more source

Matching preclusion and conditional matching preclusion for hierarchical cubic networks

open access: yesAIMS Mathematics, 2022
Matching preclusion originates from the measurement of interconnection network robustness in the event of edge failure. Conditional matching preclusion belongs to generalized matching preclusion.
Jinyu Zou , Haizhen Ren
doaj   +1 more source

Optimal topological simplification of discrete functions on surfaces [PDF]

open access: yes, 2010
We solve the problem of minimizing the number of critical points among all functions on a surface within a prescribed distance {\delta} from a given input function.
A. Danner   +32 more
core   +2 more sources

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