Results 1 to 10 of about 6,985,617 (243)
Calibration and measurement of X-ray personal dose equivalent with a Hp(10) ionization chamber [PDF]
Nuclear Technology and Radiation Protection, 2021 The value of the personal dose equivalent at a 10 mm depth is to characterize the energy deposition of strong penetrating radiation in the human body and is derived by measurement of air kerma and application of conversion coefficients from the ISO ...
Xu Yang, Zhao Rui
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Economia & Região, 2021 This study aims to identify the regions with the most significant potential for implementing new plants and photovoltaic energy consumer units. In addition to these, verify the real and potential solar incidence, and identify remote self-consumption and ...
Emerson Zonel Inácio da Silva +2 more
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Environmental Challenges, 2021 This study aimed to investigate the relationship between energy-resource depletion, health and the Environmental Kuznets Curve (EKC) hypothesis in the panel for the Middle East and North Africa (MENA) countries over 2005-2017 period. To sturdy inferences,
Hamid Amirnejad +2 more
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On the Boundary of Incidence Energy and Its Extremum Structure of Tricycle Graphs
Frontiers in Physics, 2020 With the wide application of graph theory in circuit layout, signal flow chart and power system, more and more attention has been paid to the network topology analysis method of graph theory.
Hongyan Lu, Zhongxun Zhu
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On the maximum ABC index of bipartite graphs without pendent vertices
Open Chemistry, 2020 For a simple graph G, the atom–bond connectivity index (ABC) of G is defined as ABC(G) = ∑uv∈ E(G)d(u)+d(v)−2d(u)d(v), $\sum_{uv\in{}E(G)} \sqrt{\frac{d(u)+d(v)-2}{d(u)d(v)}},$where d(v) denotes the degree of vertex v of G.
Shao Zehui +4 more
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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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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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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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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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