Results 11 to 20 of about 1,018,840 (301)
On two energy-like invariants of line graphs and related graph operations
Journal of Inequalities and Applications, 2016 For a simple graph G of order n, let μ 1 ≥ μ 2 ≥ ⋯ ≥ μ n = 0 $\mu_{1}\geq\mu_{2}\geq\cdots\geq\mu_{n}=0$ be its Laplacian eigenvalues, and let q 1 ≥ q 2 ≥ ⋯ ≥ q n ≥ 0 $q_{1}\geq q_{2}\geq\cdots\geq q_{n}\geq0$ be its signless Laplacian eigenvalues.
Xiaodan Chen, Yaoping Hou, Jingjian Li
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Randi�� Incidence Energy of Graphs
Transactions on Combinatorics, 2014 11 ...
Gu, Ran, Huang, Fei, Li, Xueliang
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Science Progress, 2023 To explore the propagation characteristics of acoustic emission (AE) signals in wood at different angles. The AE signals at different angles were obtained by changing the angle of incidence by sawing the inclined surfaces at different angles. The Zelkova
Ming Li +6 more
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Influence of Collision Cascade Statistics on Pattern Formation of Ion-Sputtered Surfaces [PDF]
, 2004 Theoretical continuum models that describe the formation of patterns on surfaces of targets undergoing ion-beam sputtering, are based on Sigmund's formula, which describes the spatial distribution of the energy deposited by the ion.
A. K. Hartmann +12 more
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Clinical and Applied Thrombosis/Hemostasis, 2020 This study aimed to investigate the relationship between the incidence of deep vein thrombosis (DVT) during hospitalization and the energy of injury in tibial plateau fractures (TPFs).
Li Jiahao MD +9 more
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Graphs with extremal incidence energy
Filomat, 2015 For a simple connected graph $G$, the incidence energy $IE(G)$ is defined as the sum of all singular values of its incidence matrix. In this paper, we characterize the graphs with the maximum incidence energies among all graphs with given chromatic number and given pendent vertex number, respectively.
Jianbin Zhang, Haibin Kan, Xiaodong Liu
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Epidemiology of trauma in the subarctic regions of the Nordic countries
BMC Emergency Medicine, 2022 Background The northern regions of the Nordic countries have common challenges of sparsely populated areas, long distances, and an arctic climate. The aim of this study was to compare the cause and rate of fatal injuries in the northernmost area of the ...
Tine Steinvik +8 more
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Inelastic energy loss of Ar ions scattered Al2O3 surface under grazing incidence
Фізика і хімія твердого тіла, 2021 In this paper presents the investigation of the surface Al2O3 by ion scattering spectroscopy. The trajectory of small angle scattered ions calculated by the method of binary collision approximation. It was found dependence of inelastic energy loss and
A.S. Ashirov +4 more
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Some improved bounds on two energy-like invariants of some derived graphs
Open Mathematics, 2019 Given a simple graph G, its Laplacian-energy-like invariant LEL(G) and incidence energy IE(G) are the sum of square root of its all Laplacian eigenvalues and signless Laplacian eigenvalues, respectively. This paper obtains some improved bounds on LEL and
Cui Shu-Yu, Tian Gui-Xian
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Nutritional deficiencies in low-sociodemographic-index countries: a population-based study
Frontiers in Nutrition, 2023 BackgroundWe aimed to estimate the burden of nutritional deficiency according to sex and age in countries with a low sociodemographic index (SDI).MethodsFollowing the methods of the Global Burden of Diseases, Injuries, and Risk Factors Study 2019 ...
Huansong Li +3 more
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