Results 1 to 10 of about 122,556 (220)

Ordering graphs with large eccentricity-based topological indices [PDF]

open access: goldJournal of Inequalities and Applications, 2021
For a connected graph, the first Zagreb eccentricity index ξ 1 $\xi _{1}$ is defined as the sum of the squares of the eccentricities of all vertices, and the second Zagreb eccentricity index ξ 2 $\xi _{2}$ is defined as the sum of the products of the ...
Yunfang Tang, Xuli Qi
doaj   +3 more sources

Computing the Eccentricity Distribution of Large Graphs [PDF]

open access: goldAlgorithms, 2013
The eccentricity of a node in a graph is defined as the length of a longest shortest path starting at that node. The eccentricity distribution over all nodes is a relevant descriptive property of the graph, and its extreme values allow the derivation of ...
Frank W. Takes, Walter A. Kosters
doaj   +5 more sources

Resonant Excitation of Planetary Eccentricity due to a Dispersing Eccentric Protoplanetary Disk: A New Mechanism of Generating Large Planetary Eccentricities [PDF]

open access: goldThe Astrophysical Journal, 2023
We present a new mechanism of generating large planetary eccentricities. This mechanism applies to planets within the inner cavities of their companion protoplanetary disks. A massive disk with an inner truncation may become eccentric due to nonadiabatic
Jiaru Li, Dong Lai
doaj   +4 more sources

Theoretical and Experimental Flow Characteristics of a Large-Scale Annular Channel in Terms of Deformation Gradient, Eccentricity, and Water Compressibility [PDF]

open access: goldLubricants, 2023
Hydraulic water plunger pumps have come to be widely used in coal mining, seawater desalination, and oil exploitation due to their high output pressure and large flow characteristics. In a high-pressure large-flow plunger pump, the leakage of the annular
Shendan Zhao   +4 more
doaj   +2 more sources

Analysis of rotor winding interturn short circuits affected by the initial dynamic eccentricity in large synchronous condensers

open access: goldIET Electric Power Applications, 2022
To investigate the effect of initial dynamic eccentricity on the rotor winding turn‐to‐turn short circuit (RWISC) in a large synchronous condenser, this paper uses the study object of a 300 MVar dual water intercooler condenser. Firstly, the air gap flux
Minghan Ma   +5 more
doaj   +2 more sources

Confocal Annular Josephson Tunnel Junctions with Large Eccentricity [PDF]

open access: greenJournal of Low Temperature Physics, 2018
arXiv admin note: text overlap with arXiv:1707 ...
R. Monaco   +2 more
openalex   +5 more sources

The evolution of large cavities and disc eccentricity in circumbinary discs [PDF]

open access: greenMonthly Notices of the Royal Astronomical Society, 2020
ABSTRACT We study the mutual evolution of the orbital properties of high-mass ratio, circular, co-planar binaries and their surrounding discs, using 3D Smoothed Particle Hydrodynamics simulations. We investigate the evolution of binary and disc eccentricity, cavity structure, and the formation of orbiting azimuthal overdense features in ...
Enrico Ragusa   +4 more
openalex   +7 more sources

Ordering unicyclic graphs with large average eccentricities

open access: hybridFilomat, 2014
The eccentricity of a vertex u in a connected graph G is the maximum distance from u to other vertices of G. The n-vertex unicyclic graphs with the i-th largest average eccentricity are determined for all i up to [n/2]- 1 with n ? 6.
Yunfang Tang, Bo Zhou
openalex   +3 more sources

Covert object recognition at large visual eccentricity

open access: goldJournal of Vision, 2010
Muriel Boucart   +4 more
openalex   +2 more sources

Numerical simulation of plane flow field and the force on the inner rod induced by planetary motion of the rod string [PDF]

open access: yesE3S Web of Conferences, 2021
In order to a the flow of the plane flow field induced by the inner rod rotates and revolves in the cylinder, the Fluent software is used to numerically simulate the plane flow field of the eccentric annulus generated by the planetary motion of the rod ...
Zhang Yang   +6 more
doaj   +1 more source

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