Academic literature on the topic 'Multi-scale limit'

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Journal articles on the topic "Multi-scale limit"

1

Khoei, A. R., and M. Jahanshahi. "Multi-scale modeling of plastic deformations in nano-scale materials; Transition to plastic limit." International Journal for Numerical Methods in Engineering 109, no. 8 (2016): 1180–216. http://dx.doi.org/10.1002/nme.5327.

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2

MINH, C. HA, FR BOUSSU, A. IMAD, T. KANIT, and D. CRÉPIN. "MULTI-SCALE MODEL TO PREDICT THE BALLISTIC IMPACT BEHAVIOR OF MULTI-LAYER PLAIN-WOVEN FABRICS." International Journal of Computational Methods 11, no. 03 (2014): 1343011. http://dx.doi.org/10.1142/s0219876213430111.

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This paper presents a multi-scale model that can predict the ballistic impact behavior of multi-layer plain-woven fabrics using the finite element method (FEM). Multi-layer fabrics of 30.5 × 30.5 cm, woven by high performance yarns Kevlar® 29 3000 denier, are impacted by a 0.3 fragment simulating projectile (FSP). Using a multi-scale approach, behavior of multi-layer fabrics subjected to different impact velocities is numerically analyzed. Ballistic limit of the fabric can also be predicted. The multi-scale model shows an effective gain of computation time in comparison with current mesoscopic
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3

Jung, M., T. F. Illenseer, and W. J. Duschl. "Multi-scale simulations of black hole accretion in barred galaxies." Astronomy & Astrophysics 614 (June 2018): A105. http://dx.doi.org/10.1051/0004-6361/201731688.

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Due to the non-axisymmetric potential of the central bar, in addition to their characteristic arms and bar, barred spiral galaxies form a variety of structures within the thin gas disk, such as nuclear rings, inner spirals, and dust lanes. These structures in the inner kiloparsec are extremely important in order to explain and understand the rate of black hole feeding. The aim of this work is to investigate the influence of stellar bars in spiral galaxies on the thin self-gravitating gas disk. We focus on the accretion of gas onto the central supermassive black hole and its time-dependent evol
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4

Kyoya, Takashi, Kenjiro Terada, and Toshikazu Kawamoto. "Multi-scale limit load analysis for discontinuous rock mass based on the homogenization method." International Journal for Numerical and Analytical Methods in Geomechanics 23, no. 10 (1999): 995–1019. http://dx.doi.org/10.1002/(sici)1096-9853(19990825)23:10<995::aid-nag21>3.0.co;2-b.

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5

Cotter, C. J., G. A. Gottwald, and D. D. Holm. "Stochastic partial differential fluid equations as a diffusive limit of deterministic Lagrangian multi-time dynamics." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 473, no. 2205 (2017): 20170388. http://dx.doi.org/10.1098/rspa.2017.0388.

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In Holm (Holm 2015 Proc. R. Soc. A 471 , 20140963. ( doi:10.1098/rspa.2014.0963 )), stochastic fluid equations were derived by employing a variational principle with an assumed stochastic Lagrangian particle dynamics. Here we show that the same stochastic Lagrangian dynamics naturally arises in a multi-scale decomposition of the deterministic Lagrangian flow map into a slow large-scale mean and a rapidly fluctuating small-scale map. We employ homogenization theory to derive effective slow stochastic particle dynamics for the resolved mean part, thereby obtaining stochastic fluid partial equati
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6

Sun, Xiangkun, Changwei Zhou, Mohamed Ichchou, Jean-Pierre Lainé, and Abdel-Malek Zine. "Multi-Scale Homogenization of Transversal Waves in Periodic Composite Beams." International Journal of Applied Mechanics 09, no. 03 (2017): 1750039. http://dx.doi.org/10.1142/s1758825117500399.

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This paper deals with the deduction of new homogenized models for the flexural wave in bi-periodic beams. According to the homogenization theory, the long-wave assumption is used and the valid frequency range of homogenized models is limited to the first Bragg band gap. However, the classical homogenization method, whose idea is taking the component’s mean values as effective material properties, has limitations in mimicking the dispersive behavior and the real valid frequency range is far less than the limit. Thus, enriched homogenized models, derived by the multi-scale asymptotic homogenizat
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7

Vulliez, Margot, Matthew A. Gleason, Aurélien Souto-Lebel, et al. "Multi-scale Curvature Analysis and Correlations with the Fatigue Limit on Steel Surfaces after Milling." Procedia CIRP 13 (2014): 308–13. http://dx.doi.org/10.1016/j.procir.2014.04.052.

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8

Xiao, Liang, Yan Li, Huangqing Xiao, Zheren Zhang, and Zheng Xu. "Electromechanical Transient Modeling of Line Commutated Converter-Modular Multilevel Converter-Based Hybrid Multi-Terminal High Voltage Direct Current Transmission Systems." Energies 11, no. 8 (2018): 2102. http://dx.doi.org/10.3390/en11082102.

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A method for electromechanical modeling of line commutated converter (LCC)-modular multilevel converter (MMC)-based hybrid multi-terminal High Voltage Direct Current Transmission (HVDC) systems for large-scale power system transient stability study is proposed. Firstly, the general idea of modeling the LCC-MMC hybrid multi-terminal HVDC system is presented, then the AC-side and DC-side models of the LCC/MMC are established. Different from the conventional first-order DC-side model of the MMC, an improved second-order DC-side model of the MMC is established. Besides considering the firing angle
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9

Yang, Mao, Yu Cui, Dawei Huang, Xin Su, and Gang Wu. "Multi-time-scale coordinated optimal scheduling of integrated energy system considering frequency out-of-limit interval." International Journal of Electrical Power & Energy Systems 141 (October 2022): 108268. http://dx.doi.org/10.1016/j.ijepes.2022.108268.

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10

Hart, W. S., P. K. Maini, C. A. Yates, and R. N. Thompson. "A theoretical framework for transitioning from patient-level to population-scale epidemiological dynamics: influenza A as a case study." Journal of The Royal Society Interface 17, no. 166 (2020): 20200230. http://dx.doi.org/10.1098/rsif.2020.0230.

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Multi-scale epidemic forecasting models have been used to inform population-scale predictions with within-host models and/or infection data collected in longitudinal cohort studies. However, most multi-scale models are complex and require significant modelling expertise to run. We formulate an alternative multi-scale modelling framework using a compartmental model with multiple infected stages. In the large-compartment limit, our easy-to-use framework generates identical results compared to previous more complicated approaches. We apply our framework to the case study of influenza A in humans.
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