Results 21 to 30 of about 1,089,730 (251)

Adjustable reach in a network centrality based on current flows

open access: yes, 2021
Centrality, which quantifies the "importance" of individual nodes, is among the most essential concepts in modern network theory. Most prominent centrality measures can be expressed as an aggregation of influence flows between pairs of nodes.
Gurfinkel, Aleks J., Rikvold, Per Arne
core   +1 more source

Bicyclic graphs with maximum degree resistance distance

open access: yesFilomat, 2016
Graph invariants, based on the distances between the vertices of a graph, are widely used in theoretical chemistry. Recently, Gutman, Feng and Yu (Transactions on Combinatorics, 01 (2012) 27- 40) introduced the degree resistance distance of a graph G, which is defined as DR(G) = ?{u,v}?V(G)[dG(u)+dG(v)]RG(u,v), where dG(u) is the degree of
Junfeng Du, Jianhua Tu
openaire   +2 more sources

On the Normalized Laplacian and the Number of Spanning Trees of Linear Heptagonal Networks

open access: yesMathematics, 2019
The normalized Laplacian plays an important role on studying the structure properties of non-regular networks. In fact, it focuses on the interplay between the structure properties and the eigenvalues of networks. Let H n be the linear heptagonal
Jia-Bao Liu   +3 more
doaj   +1 more source

Spatial genetic structure and landscape connectivity in black bears: Investigating the significance of using different land cover datasets and classifications in landscape genetics analyses

open access: yesEcology and Evolution, 2021
Landscape genetic analyses allow detection of fine‐scale spatial genetic structure (SGS) and quantification of effects of landscape features on gene flow and connectivity. Typically, analyses require generation of resistance surfaces.
Hope M. Draheim   +3 more
doaj   +1 more source

Mechanical characteristics of mining coal in reverse fault area

open access: yesMeikuang Anquan, 2022
In order to study the mechanical characteristics of the coal body in the area affected by the reverse fault under the mining path, taking 1503 working face of a mine as the research object, the stress analysis model of the coal body in the area affected
ZHOU Rui
doaj   +1 more source

Technology and machine tape preparation soil for seeding [PDF]

open access: yesE3S Web of Conferences, 2023
Mutual arrangement is a combined machine that performs strip preparation of the soil for sowing. The scheme and the functional scheme of the combined machine are given.
Mamatov F. M.   +4 more
doaj   +1 more source

Nordhaus-Gaddum-Type Results for Resistance Distance-Based Graph Invariants

open access: yesDiscussiones Mathematicae Graph Theory, 2016
Two decades ago, resistance distance was introduced to characterize “chemical distance” in (molecular) graphs. In this paper, we consider three resistance distance-based graph invariants, namely, the Kirchhoff index, the additive degree-Kirchhoff index ...
Das Kinkar Ch., Yang Yujun, Xu Kexiang
doaj   +1 more source

Faculties’ Satisfaction With Distance Education During COVID-19 Outbreak in Jordan

open access: yesFrontiers in Education, 2022
Although online teaching has been implemented worldwide, specifically in higher education, resistance to technology use exists, as faculty members may lack technology familiarity and may require both guidance and training.
Fadi Jarab   +3 more
doaj   +1 more source

Absorbing Random Walks Interpolating Between Centrality Measures on Complex Networks

open access: yes, 2020
Centrality, which quantifies the "importance" of individual nodes, is among the most essential concepts in modern network theory. As there are many ways in which a node can be important, many different centrality measures are in use. Here, we concentrate
Gurfinkel, Aleks J., Rikvold, Per Arne
core   +1 more source

Characterization of surface morphology, wear performance and modelling of graphite reinforced aluminium hybrid composites

open access: yesEngineering Science and Technology, an International Journal, 2020
In this work, morphological characterization and wear behaviour of micro graphite (Gr) and nano zirconia (ZrO2) reinforced aluminium (Al) hybrid composites were investigated.
Sajjad Arif   +5 more
doaj   +1 more source

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