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相关论文: Modeling water relative permeability in uniform gr…

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The continuous-time random walk (CTRW) model is useful for alleviating the computational burden of simulating diffusion in actual media. In principle, isotropic CTRW only requires knowledge of the step-size, $P_l$, and waiting-time, $P_t$,…

统计力学 · 物理学 2017-01-19 Shahar Amitai , Raphael Blumenfeld

We investigate the upscaling of diffusive transport parameters as function of pore scale material structure using a stochastic framework. We focus on sub-REV (representative elementary volume) scale where the complexity of pore space…

材料科学 · 物理学 2021-06-21 Alraune Zech , Matthijs de Winter

We investigate the behaviour of the mean size of directed compact percolation clusters near a damp wall in the low-density region, where sites in the bulk are wet (occupied) with probability $p$ while sites on the wall are wet with…

数学物理 · 物理学 2015-06-18 H Lonsdale , I Jensen , J W Essam , A L Owczarek

We seek a generalization of regression and principle component analysis (PCA) in a metric space where data points are distributions metrized by the Wasserstein metric. We recast these analyses as multimarginal optimal transport problems.…

最优化与控制 · 数学 2020-04-20 Amirhossein Karimi , Luigia Ripani , Tryphon T. Georgiou

Precipitation and dissolution are prime processes in carbonate rocks and being able to monitor them is of major importance for aquifer and reservoir exploitation or environmental studies. Electrical conductivity is a physical property…

地球物理 · 物理学 2020-09-01 Flore Rembert , Damien Jougnot , Luis Guarracino

Diffusing wave spectroscopy (DWS) can be employed as an optical rheology tool with numerous applications for studying the structure, dynamics and linear viscoelastic properties of complex fluids, foams, glasses and gels. To carry out DWS…

软凝聚态物质 · 物理学 2018-11-06 Chi Zhang , Mathias Reufer , Danila Gaudino , Frank Scheffold

Motivated by recent claims, we revisit how coherent perfect absorption (CPA) influences cavity and polaritonic linewidths. Using standard input output theory and measurements on single port bare microwave cavities and cavity magnon hybrids,…

光学 · 物理学 2025-10-28 M. Ebrahimi , Y. Huang , A. Rashedi , J. P. Davis

Accurate modeling of gas relative permeability has practical applications in oil and gas exploration, production and recovery of unconventional reservoirs. In this study, we apply concepts from the effective-medium approximation (EMA) and…

地球物理 · 物理学 2020-04-08 Behzad Ghanbarian , Feng Liang , Hui-Hai Liu

A method is presented for the evaluation of the permeability-porosity relationship in a low-permeability porous material using the results of a single transient test. This method accounts for both elastic and non-elastic deformations of the…

地球物理 · 物理学 2009-03-16 Siavash Ghabezloo , Jean Sulem , Jérémie Saint-Marc

The sorption curve is an essential feature for the modelling of heat and mass transfer in porous building materials. Several models have been proposed in the literature to represent the amount of moisture content in the material according…

应用统计 · 统计学 2021-04-21 Julien Berger , Thibaut Colinart , Bruna R. Loiola , Helcio R. B. Orlande

Projections of hypercubes have been applied to visualize high-dimensional binary state spaces in various scientific fields. Conventional methods for projecting hypercubes, however, face practical difficulties. Manual methods require…

数据分析、统计与概率 · 物理学 2025-10-08 Yoshiaki Horiike , Shin Fujishiro

We develop a path-integral dynamics method for water that resembles centroid molecular dynamics (CMD), except that the centroids are averages of curvilinear, rather than cartesian, bead coordinates. The curvilinear coordinates are used…

化学物理 · 物理学 2019-09-04 George Trenins , Michael J. Willatt , Stuart C. Althorpe

Principal component analysis (PCA), the most popular dimension-reduction technique, has been used to analyze high-dimensional data in many areas. It discovers the homogeneity within the data and creates a reduced feature space to capture as…

统计方法学 · 统计学 2026-03-24 Daning Bi , Le Chang , Yanrong Yang

We investigate the accuracy of the coherent potential approximation (CPA) for a one-dimensional array with nearest-neighbor interactions and a Gaussian distribution of fluctuations in the on-site potential. The CPA values of the integrated…

无序系统与神经网络 · 物理学 2015-05-18 I. Avgin , D. L. Huber

The pore-solid interface and its characteristics play a key role in chemical interactions between minerals in the solid soil matrix and the liquid in pore space and, consequently, solute transport in soils. Specific surface area (SSA),…

地球物理 · 物理学 2021-02-19 Behzad Ghanbarian , Allen G. Hunt , Marco Bittelli , Markus Tuller , Emmanuel Arthur

Dimensionality reduction is a fundamental technique in machine learning and data analysis, enabling efficient representation and visualization of high-dimensional data. This paper explores five key methods: Principal Component Analysis…

其他统计学 · 统计学 2025-02-19 Yuan-chin Ivan Chang

A common approach to perform PCA on probability measures is to embed them into a Hilbert space where standard functional PCA techniques apply. While convergence rates for estimating the embedding of a single measure from $m$ samples are…

机器学习 · 统计学 2026-02-03 Gachon Erell , Jérémie Bigot , Elsa Cazelles

Translational diffusion coefficients are routinely estimated from molecular dynamics simulations. Linear fits to mean squared displacement (MSD) curves have become the de facto standard, from simple liquids to complex biomacromolecules.…

计算物理 · 物理学 2020-11-20 Jakob Tómas Bullerjahn , Sören von Bülow , Gerhard Hummer

The scaled particle theory is applied to a description of thermodynamic properties of one-dimensional hard rod fluid in disordered porous media. To this end, we extended the SPT2 approach, which had been developed previously. Analytical…

软凝聚态物质 · 物理学 2012-07-13 M. Holovko , T. Patsahan , W. Dong

Coherent perfect absorption (CPA) refers to interferometrically induced complete absorption of incident light by a partial absorber independently of its intrinsic absorption (which may be vanishingly small) or its thickness. CPA is…