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Uniform fluid flow distribution in a symmetric volume can be realized through a symmetric branched tree. It is shown here, however, that the flow partitioning can be highly sensitive to deviations from exact symmetry if inertial effects are…

生物物理 · 物理学 2009-11-10 B. Mauroy , M. Filoche , J. S. Andrade , B. Sapoval

In the research scope of forest stand self-thinning, the analysis reveals a broad picture in which the -3/2 rule takes a definite and special place. The application of the simple geometrical model to the Douglas-fir and Scots pine data…

种群与进化 · 定量生物学 2014-10-10 Vladimir L. Gavrikov

We study the behaviour of a natural measure defined on the leaves of the genealogical tree of some branching processes, namely self-similar growth-fragmentation processes. Each particle, or cell, is attributed a positive mass that evolves…

概率论 · 数学 2019-08-13 François Gaston Ged

This work reports an extensive study of three-dimensional topological ordered phases that, in one of the directions behave like usual topological order concerning mobility of excitations, but in the perpendicular plane manifest type-II…

强关联电子 · 物理学 2024-12-12 Heitor Casasola , Guilherme Delfino , Yizhi You , Paula F. Bienzobaz , Pedro R. S. Gomes

Snowflake growth provides us with a fascinating example of spontaneous pattern formation in nature. Attempts to understand this phenomenon have led to important insights in non-equilibrium dynamics observed in various active scientific…

计算物理 · 物理学 2016-11-11 G. Demange , H. Zapolsky , R. Patte , M. Brunel

Farmers frequently assess plant growth and performance as basis for making decisions when to take action in the field, such as fertilization, weed control, or harvesting. The prediction of plant growth is a major challenge, as it is…

计算机视觉与模式识别 · 计算机科学 2023-12-07 Lukas Drees , Laura Verena Junker-Frohn , Jana Kierdorf , Ribana Roscher

Geometrical cues play an essential role in neuronal growth. Here, we quantify axonal growth on surfaces with controlled geometries and report a general stochastic approach that quantitatively describes the motion of growth cones. We show…

生物物理 · 物理学 2019-06-13 Joao Marcos Vensi Basso , Ilya Yurchenko , Marc Simon , Daniel J. Rizzo , Cristian Staii

We study the growth of a time-ordered rooted tree by probabilistic attachment of new vertices to leaves. We construct a likelihood function of the leaves based on the connectivity of the tree. We take such connectivity to be induced by the…

数据结构与算法 · 计算机科学 2020-11-03 Nomvelo Sibisi

The amplification of magnetic fields in a highly conducting fluid is studied numerically. During growth, the magnetic field is spatially intermittent: it does not uniformly fill the volume, but is concentrated in long thin folded…

混沌动力学 · 物理学 2009-11-10 A. A. Schekochihin , S. C. Cowley , J. L. Maron , J. C. McWilliams

Unstable homoepitaxy on rough substrates is treated within a linear continuum theory. The time dependence of the surface width W(t) is governed by three length scales: The characteristic scale $l_0$ of the substrate roughness, the terrace…

统计力学 · 物理学 2009-10-31 Joachim Krug , Martin Rost

Cells adapt to different conditions by altering a vast number of components, which is measurable using transcriptome analysis. Given that a cell undergoing steady growth is constrained to sustain each of its internal components, the…

细胞行为 · 定量生物学 2014-07-15 Kunihiko Kaneko , Chikara Furusawa , Tetsuya Yomo

Astronomical observations suggest that the Universe may be anisotropic on the largest scales. In order to model this situation, we develop a new approach to cosmology that allows for large-scale anisotropy to emerge from the growth of…

广义相对论与量子宇宙学 · 物理学 2023-06-26 Theodore Anton , Timothy Clifton

We tackle the question of whether the presence of particles in a pipe flow can influence the linear transient growth of infinitesimal perturbations, in view of better understanding the behaviour of particulate pipe flows in regimes of…

流体动力学 · 物理学 2019-03-26 Anthony Rouquier , Alban Potherat , Chris C. T. Pringle

Network science provides an indispensable theoretical framework for studying the structure and function of real complex systems. Different network models are often used for finding the rules that govern their evolution, whereby the correct…

物理与社会 · 物理学 2020-09-02 Ana Vranić , Marija Mitrović Dankulov

Conformal field theories with central charge $c\le1$ on random surfaces have been extensively studied in the past. Here, this discussion is extended from their equilibrium distribution to their critical dynamics. This is motivated by the…

高能物理 - 理论 · 物理学 2025-06-03 Christof Schmidhuber

We experimentally study linear and nonlinear waves on the surface of a fluid covered by an elastic sheet where both tension and flexural waves take place. An optical method is used to obtain the full space-time wave field, and the…

流体动力学 · 物理学 2014-02-10 Luc Deike , Jean-Claude Bacri , Eric Falcon

We solve a coarsening system with small but arbitrary anisotropic surface tension and interface mobility. The resulting size-dependent growth shapes are significantly different from equilibrium microcrystallites, and have a distribution of…

统计力学 · 物理学 2007-05-23 Andrew D. Rutenberg , Benjamin P. Vollmayr-Lee

Many properties of soft contact interfaces are controlled by the contact area (e.g. friction, contact stiffness and surface charge generation). The contact area increases with the contact age at rest. In contrast, it usually reduces under…

软凝聚态物质 · 物理学 2024-10-31 Bo Zhang , Mariana de Souza , Daniel M. Mulvihill , Davy Dalmas , Julien Scheibert , Yang Xu

We derive the stochastic model of plasma-condensate systems by taking into account anisotropy in transference of adatoms between neighbor layers and by introducing fluctuations of adsorbate flux. We show, that by varying the fluctuation's…

介观与纳米尺度物理 · 物理学 2019-03-27 Vasyl O. Kharchenko , Alina V. Dvornichenko

Stochastic growth processes give rise to diverse intricate structures everywhere and across all scales in nature. Despite the seemingly unrelated complex phenomena at their origin, the Laplacian growth theory has succeeded in unifying their…

统计力学 · 物理学 2016-05-31 J. R. Nicolás-Carlock , J. L. Carrillo-Estrada , V. Dossetti
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