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Accelerating phase-field-based microstructure evolution predictions via surrogate models trained by machine learning methods

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npj Computational Materials 2021年第1期7卷 9-19页

作者： David Montes de Oca Zapiain James A.Stewart Rémi Dingreville Center for Integrated Nanotechnologies Sandia National LaboratoriesAlbuquerqueNM 87185USA Energetic Materials Dynamic and Reactive Science Sandia National LaboratoriesAlbuquerqueNM 87185USA

The phase-field method is a powerful and versatile computational approach for modeling the evolution of microstructures and associated properties for a wide variety of physical,chemical,and biological ***,existing high-fidelity phase-field models are inherently computa fonally expensive,requiring high-performance computing resources and sophisticated numefical integration schemes to achieve a useful degree of *** this paper,we present a computationally inexpensive,accurate,data-driven surmogate model that directly learns the microstructural evolution of targeted systems by combining phase-field and history-dependent machine-learning *** integrate a statisti cally representative,low-dimensianal description of the micrastructure,obtained direcdy from phase-field simulations,with either a time-series multivariate adaptive regression splines autoregressive al garithm or a lang short-term memory neural *** neural-network-trained surrogate model shows the bestperformance and accurately predicts the nanlinear microstructure evolutian of a two-phase mixture during spinodal decomposition in seconds,without the need for"on-the-fly"solutions of the phase-field equations of *** also show that the predictions from our machine learned surrogate model can be fed directly as an input into a classical high-fideli ty phase-field model in order to accelerate the high-fidelity phase field simulations by leaping in *** machine-learned phase-field framework opens a promising path forward to use accelerated phase field simulations for discovering,understanding,and predicting processing-microstructure-performance relationships.

关键词： phase versatile statist

L'ACTUALITE ECONOMIQUE ET COMMERCIALE

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中国与非洲（法文版） 2023年第9期15卷 52-53页

Les recettes du tourisme egyptien se sont elevees a 10,7 milliards de dollars durant I'année fiscale 2021-2022 terminée en juin 2022,soit une hausse de pres de 120% par rapport aux 4,9 milliards de dollars de I'anne... 详细信息

关键词： dollar Les statist

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ABSTRACT

中国有色金属学会会刊：英文版 1993年第1期3卷 95-97页

11-0001 Existence and Distribution of Associated Gold amd Silver of Hengshanling-Shexingping. The existence, distribution and relativity of elements of Hengshan Ling-Shexingping Lead-Zine Ore were studied by means of ... 详细信息

关键词： Associated Silver quantities restoration elated restored ABSTRACT statist tables dated

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PANCREAS

China Medical Abstracts(Internal Medicine) 2001年第2期18卷 97-98页

STUDY ON STRUCTURE OF STRONG WIND IN THE ATMOSPHERIC BOUNDARY LAYER

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Chinese Science Bulletin 1985年第5期30卷 639-643页

作者：李兴生苏俊 Institute of Atmospheric Physics Academa Sinica Beijing University of Science and Technology of China Hefeitilizing the data of horizontal wind speed measured on the 325-m meteorological tower in Beijing we have analyesd the turbulent energy spectra gusting characteristics and the vertical distributions of strong wind under neutral and unstable conditions. The results show that : (ⅰ) There are two energy ranges in the cold front one is 20-130 min the other 3-10 min and their peak values vary in the region of 10~0-2×10~(-2)m~2S~(-2).

Utilizing the data of horizontal wind speed measured on the 325-m meteorological tower in Beijing, we have analyesd the turbulent energy spectra, gusting characteristics and the vertical distributions of strong wind under neutral and unstable conditions. The results show that : （ⅰ） There are two energy ranges in the cold front, one is 20—130 min, the other 3—10 min, and their peak values vary in the region of 100—2×10-2m2S-2.

关键词： turbulent meteorological tower averaged neutral unstable horizon statist exponent roughness

UMVUE OF TWO-SIDED TRUNCATION PARAMETERS

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Chinese Science Bulletin 1980年第2期25卷 113-115页

作者：卢昆亮赵林城 Graduate School University of Science and Technology of China

Ⅰ. INTRODUCTIONConsider the family of the two-sided truncation parameters distribution with densities （1） where a and b are fixed real numbers, h（x） > 0 for a. e. x ∈（a, b）（Lebesgue measure）. For every （θ... 详细信息

关键词： truncation sided integrable satis statist Lebesgue valid 玩古工老二运

X-RAY CRYSTAL STRUCTURE ANALYSIS OF ILEXOLIC METHYL-ESTER (Ⅱ)

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Chinese Science Bulletin 1985年第4期30卷 549-551页

作者：张树德林秀云曾陇梅苏镜娱 Institute of Biophysics Academia Sinica Beijing Department of Chemistry Zhongshan University Guangzhou Department of Chemistry Zhongshan University Guangzhoulex publeseens Hook et Arn is one of the Chinese medieval herbs. Its main pharmacological action is to increase the volume of blood flow of the coronary artery and to enhance the systolic function of the heart. It has certain curative effects for many diseases Clinical research has testified it to be a Chinese drug with great potentia lity.

Ilex publeseens Hook et Arn is one of the Chinese medieval herbs. Its main pharmacological action is to increase the volume of blood flow of the coronary artery and to enhance the systolic function of the heart. It has certain curative effects for many diseases, Clinical research has testified it to be a Chinese drug with great potentia lity.

关键词： curative systolic glucoside benzoyl rotation undesirable moderate refined analysed statist

CALCULATED ^(13)C-NMR CHEMICAL SHIFTS FOR THE METHYL CARBON OF ATACTIC POLY-PROPYLENE

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Chinese Science Bulletin 1981年第6期26卷 575-页

作者：朱善农杨小震 Institute of Chemistry Academia Sinica Institute of Chemistry

Tonelli’s γ effect in Macromolecules, 11 （1978） 565, and Flory’s rotational isomeric state model of polypropylene in Macromolecules, 8 （1975） 687, were employed to calculate the 13C-NMR chemical shifts expected... 详细信息

关键词： polypropylene producing Flory rotational bonds statist suggestion valuable