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相关论文: Modeling Heterogeneous Materials via Two-Point Cor…

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Within a holographic model, we calculate the time evolution of 2-point and 1-point correlation functions (of selected operators) within a charged strongly coupled system of many particles. That system is thermalizing from an anisotropic…

高能物理 - 理论 · 物理学 2019-10-02 Casey Cartwright , Matthias Kaminski

We study time-harmonic Maxwell's equations in meta-materials that use either perfect conductors or high-contrast materials. Based on known effective equations for perfectly conducting inclusions, we calculate the transmission and reflection…

偏微分方程分析 · 数学 2018-09-25 Mario Ohlberger , Ben Schweizer , Maik Urban , Barbara Verfürth

We introduce a general tensor model suitable for data analytic tasks for {\em heterogeneous} datasets, wherein there are joint low-rank structures within groups of observations, but also discriminative structures across different groups. To…

机器学习 · 统计学 2022-10-04 Davoud Ataee Tarzanagh , George Michailidis

An interacting lattice model describing the subspace spanned by a set of strongly-correlated bands is rigorously coupled to density functional theory to enable ab initio calculations of geometric and topological material properties. The…

强关联电子 · 物理学 2019-03-26 Ryan Requist , E. K. U. Gross

We address some key conditions under which many-body lattice models, intended mainly as simulated condensed matter systems, can be investigated via immersed, fully controllable quantum objects, namely quantum probes. First, we present a…

量子物理 · 物理学 2017-05-24 Francesco Cosco , Massimo Borrelli , Francesco Plastina , Sabrina Maniscalco

Random microstructures of heterogeneous materials play a crucial role in the material macroscopic behavior and in predictions of its effective properties. A common approach to modeling random multiphase materials is to develop so-called…

We prove up-to-constants bounds on the two-point function (i.e., point-to-point connection probabilities) for critical long-range percolation on the $d$-dimensional hierarchical lattice. More precisely, we prove that if we connect each pair…

概率论 · 数学 2021-04-01 Tom Hutchcroft

The optimal use of resources has motivated the engineering community to employ controlled distribution of material within their structural designs, often relying on cellular and lattice porous structures. In this research work, a…

材料科学 · 物理学 2022-07-15 A. E Gomez-Ovalle

Heterogeneous materials exhibit anisotropy which is influenced by factors such as individual phase properties and microstructural configuration that form crucial descriptors of heterogeneity. A review of anisotropy indices proposed in the…

材料科学 · 物理学 2025-04-15 Abhilash M Nagaraja

Digital modeling of the microstructure is important for studying the physical and transport properties of porous media. Multiscale modeling for porous media can accurately characterize macro-pores and micro-pores in a large-FoV (field of…

图像与视频处理 · 电气工程与系统科学 2023-05-03 Pengcheng Yan , Qizhi Teng , Xiaohai He , Zhenchuan Ma , Ningning Zhang

We restrict our attention to space-time point pattern data for which we have a single realisation within a finite region. Second-order characteristics are used to analyse the spatio-temporal structure of the underlying point process. In…

统计理论 · 数学 2013-04-29 Edith Gabriel

In this work we deal with the stochastic homogenization of the initial boundary value problems of monotone type. The models of monotone type under consideration describe the deformation behaviour of inelastic materials with a microstructure…

偏微分方程分析 · 数学 2017-01-16 Martin Heida , Sergiy Nesenenko

Mat\'ern's hard-core processes are valuable point process models in spatial statistics. In order to extend their field of application, Mat\'ern's original models are generalized here, both as point processes and particle processes. The…

统计方法学 · 统计学 2012-09-13 Jakob Teichmann , Felix Ballani , Karl Gerald van den Boogaart

This guide contains a collection of the tips, tricks, and techniques that we have found to be useful when performing very large, correlated Bayesian fits of two, and three-point correlation functions for semileptonic decays, in this case…

高能物理 - 格点 · 物理学 2024-10-02 W. G. Parrott

In recent years, machine learning has demonstrated impressive capability in handling molecular science tasks. To support various molecular properties at scale, machine learning models are trained in the multi-task learning paradigm.…

机器学习 · 计算机科学 2024-10-15 Yuxuan Ren , Dihan Zheng , Chang Liu , Peiran Jin , Yu Shi , Lin Huang , Jiyan He , Shengjie Luo , Tao Qin , Tie-Yan Liu

Recent innovations in x-ray technology (namely phase-based and energy-resolved imaging) offer unprecedented opportunities for material discrimination, however they are often used in isolation or in limited combinations. Here we show that…

Inspired by natural cellular materials such as trabecular bone, lattice structures have been developed as a new type of lightweight material. In this paper we present a novel method to design lattice structures that conform with both the…

计算工程、金融与科学 · 计算机科学 2019-09-06 Jun Wu , Weiming Wang , Xifeng Gao

We simulate static memory materials on a two-dimensional lattice. The bulk properties of such materials depend on boundary conditions. Considerable information can be stored in various local patterns. We observe local probabilities…

统计力学 · 物理学 2018-02-26 D. Sexty , C. Wetterich

A contemporary procedure to grow artificial tissue is to seed cells onto a porous biomaterial scaffold and culture it within a perfusion bioreactor to facilitate the transport of nutrients to growing cells. Typical models of cell growth for…

组织与器官 · 定量生物学 2018-05-01 Andrew L. Krause , Dmitry Beliaev , Robert A. Van Gorder , Sarah L. Waters

We study the homogenization of a steady diffusion equation in a highly heterogeneous medium made of two subregions separated by a periodic barrier through which the flow is proportional to the jump of the temperature by a layer conductance…

偏微分方程分析 · 数学 2008-11-08 Abdelhamid Ainouz