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Physics Preprint PDF DOI

Statistical State Dynamics of Large-Scale Structure Formation in Shallow Water Magnetohydrodynamic Turbulence

Eojin Kim, Brian F. Farrell ยท 2026

Zonal jets (ZJ) are prominent coherent structures that spontaneously emerge from the background turbulent state in both stellar and planetary atmospheres. Although formation and maintenance of coherenโ€ฆ

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Physics Preprint PDF DOI

Statistical State Dynamics Based Study of the Turbulent Ekman Layer

Eojin Kim, Brian F. Farrell ยท 2026

Streamwise roll and streak structures (RSS) are prominent features observed in both atmospheric and oceanic planetary boundary layers (PBL) as well as in laboratory scale Wall bounded shear flows. Desโ€ฆ

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Physics Preprint PDF DOI

Statistical State Dynamics based study of turbulence in Eady fronts. Part 1. Instability

Eojin Kim, Brian F. Farrell ยท 2025

The streamwise roll and streak structure (RSS) is prominent in observations of the planetary boundary layer in the atmosphere and ocean and in unstratified wall-bounded shear flows. Although the RSS iโ€ฆ

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Mathematics Preprint PDF DOI

Abstract computation over first-order structures. Part IIa: Moschovakis' operator and other non-determinisms

Christine Ga{ss}ner ยท 2025

BSS RAMs over first-order structures help to characterize algorithms for processing objects by means of useful operations and relations. They are the result of a generalization of several types of absโ€ฆ

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Computer Science Preprint PDF DOI

A $(1+\epsilon)$-Approximation for Ultrametric Embedding in Subquadratic Time

Gabriel Bathie, Guillaume Lagarde ยท 2025

Efficiently computing accurate representations of high-dimensional data is essential for data analysis and unsupervised learning. Dendrograms, also known as ultrametrics, are widely used representatioโ€ฆ

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AI & Data Science Preprint PDF DOI

A generalized dual potential for inelastic Constitutive Artificial Neural Networks: A JAX implementation at finite strains

Hagen Holthusen, Kevin Linka, Ellen Kuhl, Tim Brepols ยท 2025

We present a methodology for designing a generalized dual potential, or pseudo potential, for inelastic Constitutive Artificial Neural Networks (iCANNs). This potential, expressed in terms of stress iโ€ฆ

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AI & Data Science Preprint PDF DOI

Automated Model Discovery for Tensional Homeostasis: Constitutive Machine Learning in Growth and Remodeling

Hagen Holthusen, Tim Brepols, Kevin Linka, Ellen Kuhl ยท 2024

Soft biological tissues exhibit a tendency to maintain a preferred state of tensile stress, known as tensional homeostasis, which is restored even after external mechanical stimuli. This macroscopic bโ€ฆ

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Physics Preprint PDF DOI

Seven years of the proxy-SU(3) shell model symmetry

Dennis Bonatsos, Andriana Martinou, S.K. Peroulis, T.J. Mertzimekis, N. Minkov ยท 2024

The proxy-SU(3) symmetry was first presented in HINPw4 in Ioannina in May2017, justified within the Nilsson model and applied to parameter-free predictions of the collective variables beta and gamma iโ€ฆ

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AI & Data Science Preprint PDF DOI

Accounting for plasticity: An extension of inelastic Constitutive Artificial Neural Networks

Birte Boes, Jaan-Willem Simon, Hagen Holthusen ยท 2024

In this work, we extend the existing framework of inelastic constitutive artificial neural networks (iCANNs) by incorporating plasticity to increase their applicability to model more complex material โ€ฆ

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Mathematics Preprint PDF DOI

Upgraded free independence phenomena for random unitaries

David Jekel, Srivatsav Kunnawalkam Elayavalli ยท 2024

We study upgraded free independence phenomena for unitary elements $u_1$, $u_2$, \dots representing the large-$n$ limit of Haar random unitaries, showing that free independence extends to several largโ€ฆ

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Mathematics Preprint PDF DOI

Counting triangles in regular graphs

Jialin He, Xinmin Hou, Jie Ma, Tianying Xie ยท 2023

In this paper, we investigate the minimum number of triangles, denoted by $t(n,k)$, in $n$-vertex $k$-regular graphs, where $n$ is an odd integer and $k$ is an even integer. The well-known Andr\'asfaiโ€ฆ

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Computer Science Preprint PDF DOI

Musico-acoustic Depictions of Laminar and Turbulent Flows in Ligeti Piano Etude No. 9 and a Novel Method of Analysis

Noah Chuipka ยท 2023

The relationship between musical material and physical phenomena has become a topic in the musicological literature over the last several decades, particularly concerning elements of the musical systeโ€ฆ

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Chemistry Preprint PDF DOI

Thermalization of open quantum systems using the multiple-Davydov-D2 variational approach

Mantas Jakucionis, Darius Abramavicius ยท 2023

Numerical implementation of an explicit phonon bath requires a large number of oscillator modes in order to maintain oscillators at the initial temperature when modeling energy relaxation processes. Aโ€ฆ

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Computer Science Preprint PDF DOI

Assessing Network Operator Actions to Enhance Digital Sovereignty and Strengthen Network Resilience: A Longitudinal Analysis during the Russia-Ukraine Conflict

Muhammad Yasir Muzayan Haq, Abhishta Abhishta, Raffaele Sommese, Mattijs Jonker, Lambert J.M. Nieuwenhuis ยท 2023

We conduct longitudinal and temporal analyses on active DNS measurement data to investigate how the Russia-Ukraine conflict impacted the network infrastructures supporting domain names under ICANN's Cโ€ฆ

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Biology & Life Sciences Preprint PDF DOI

Ancestry-specific analyses of genome-wide data confirm the settlement sequence of Polynesia

Alexander G. Ioannidis, Javier Blanco-Portillo, Erika Hagelberg, Juan Esteban Rodriguez-Rodriguez, Keolu Fox, Adrian V. S. Hill, Carlos D. Bustamante, Marcus W. Feldman, Alexander J. Mentzer, Andres Moreno-Estrada ยท 2022

By demonstrating the role that historical population replacements and waves of admixture have played around the world, the genetics work of Reich and colleagues has provided a paradigm for understandiโ€ฆ

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Engineering Preprint PDF DOI

Deep Learning-Based Automatic Diagnosis System for Developmental Dysplasia of the Hip

Yang Li, Leo Yan Li-Han, Hua Tian ยท 2022

Objective: The clinical diagnosis of developmental dysplasia of the hip (DDH) typically involves manually measuring key radiological angles -- Center-Edge (CE), Tonnis, and Sharp angles -- from pelvicโ€ฆ

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Physics Preprint PDF DOI

Compact objects in quadratic Palatini gravity generated by a free scalar field

Renan B. Magalhaes, Luis C. B. Crispino, Gonzalo J. Olmo ยท 2022

We study the correspondence that connects the space of solutions of General Relativity (GR) with that of Ricci-based Gravity theories (RBGs) of the $f(R,Q)$ type in the metric-affine formulation, wherโ€ฆ

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Physics Preprint PDF DOI

Mod\'elisation Magn\'etohydrodynamique

Quentin Cauvet ยท 2021

To better understand the occurrence and evolution of ionospheric perturbations, the CEA develops CLOVIS, a physical code that describes the dynamics of neutrals and ionized particles in the Earth's maโ€ฆ

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Physics Preprint PDF DOI

Fine-Tuning the Polarizable CL&Pol Force Field for the Deep Eutectic Solvent Ethaline

Rafael Maglia de Souza, Mikko Karttunen, Mauro Carlos Costa Ribeiro ยท 2021

Polarizable force fields are gradually becoming a common choice for ionic soft matter, in particular for molecular dynamics (MD) simulations of ionic liquids (ILs) and deep eutectic solvents (DESs). Tโ€ฆ

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Computer Science Preprint PDF DOI

The Colombian Scientific Elite -- Science Mapping and Bibliometric Outlook

Julian D. Cortes, Daniel A. Andrade ยท 2021

A well established agenda on the research output, impact, and structure of global scientific elites such as Nobel Prize laureates has generated interest in the scientific elites from developing countrโ€ฆ

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