Results 1 to 10 of about 1,089,730 (251)

Maximum Reciprocal Degree Resistance Distance Index of Bicyclic Graphs [PDF]

open access: yesDiscrete Dynamics in Nature and Society, 2021
The reciprocal degree resistance distance index of a connected graph G is defined as RDRG=∑u,v⊆VGdGu+dGv/rGu,v, where rGu,v is the resistance distance between vertices u and v in G. Let ℬn denote the set of bicyclic graphs without common edges and with n
Gaixiang Cai, Xing-Xing Li, Guidong Yu
doaj   +5 more sources

Degree resistance distance of trees with some given parameters [PDF]

open access: yesTransactions on Combinatorics, 2018
The degree resistance distance of a graph $G$ is defined as $D_R(G)=\sum_ ...
Fangguo He, Xinnong Jiang
doaj   +3 more sources

Bicyclic Graphs with the Second-Maximum and Third-Maximum Degree Resistance Distance [PDF]

open access: yesJournal of Mathematics, 2021
Let G=V,E be a connected graph. The resistance distance between two vertices u and v in G, denoted by RGu,v, is the effective resistance between them if each edge of G is assumed to be a unit resistor.
Wenjie Ning, Kun Wang, Hassan Raza
doaj   +2 more sources

Ripping paw tools for preparing the soil for planting [PDF]

open access: yesE3S Web of Conferences, 2023
The paper discusses parameters of the loosening paw tool to prepare the soil the strip sowing of melons. Scheme of mutual arrangement of the paired housing and the ripper is given. Formulas were obtained for determining the depth of tillage, the width of
Mamatov Farmon, Ergashov Gayrat
doaj   +1 more source

Constructal Design of an Idealize Arterial Bypass Graft: Effect of ‎the Bypass Attachment Pointon Resistance to Flow‎ [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
This paper aims to investigate, through the 3D numerical analysis of an idealized arterial bypass graft, the dependence of the resistance to flow on the bypass insertion point.
Andrea Natale Impiombato   +3 more
doaj   +1 more source

On the Normalized Laplacian Spectrum of the Linear Pentagonal Derivation Chain and Its Application

open access: yesAxioms, 2023
A novel distance function named resistance distance was introduced on the basis of electrical network theory. The resistance distance between any two vertices u and v in graph G is defined to be the effective resistance between them when unit resistors ...
Yuqing Zhang, Xiaoling Ma
doaj   +1 more source

Effectiveness of corridors varies among phytosociological plant groups and dispersal syndromes. [PDF]

open access: yesPLoS ONE, 2018
In agricultural landscapes, semi-natural habitats are scarce and remaining habitat patches are largely isolated. However, linear landscape elements might facilitate dispersal of plant species through the agricultural landscape matrix. We investigated the
Jan Thiele   +2 more
doaj   +1 more source

Investigation of the Hydrodynamic Characteristics of Two Manta Rays Tandem Gliding

open access: yesJournal of Marine Science and Engineering, 2022
Collective motion is a unique biological habit of manta rays. As the most basic unit, the hydrodynamic mechanism of tandem gliding deserves further study. In this paper, a numerical simulation method was used to explore the influence of the front-to-back
Yunlong Ma   +3 more
doaj   +1 more source

Maximum Reciprocal Degree Resistance Distance Index of Unicyclic Graphs

open access: yesDiscrete Dynamics in Nature and Society, 2020
The reciprocal degree resistance distance index of a connected graph G is defined as RDRG=∑u,v⊆VGdGu+dGv/rGu,v, where rGu,v is the resistance distance between vertices u and v in G. Let Un denote the set of unicyclic graphs with n vertices.
Gai-Xiang Cai, Xing-Xing Li, Gui-Dong Yu
doaj   +1 more source

Influences of ventilation conditions of fully mechanized excavation face on dust-resistance effect of radial swirling air curtain

open access: yesMeikuang Anquan, 2022
In order to improve the dust-resistance efficiency of radial swirling air curtain in fully mechanized excavation face and prevent high-concentration dust pollution on the working area, the method of combining numerical simulation and engineering ...
WANG Hao   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy