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相关论文: Scaling Relations for Auxin Waves

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Previous work has established the usefulness of the resolvent operator that maps the terms nonlinear in the turbulent fluctuations to the fluctuations themselves. Further work has described the self-similarity of the resolvent arising from…

流体动力学 · 物理学 2017-04-12 A S Sharma , R Moarref , B J McKeon

Spin-dependent partial conductances are evaluated in a tight-binding description of electron transport in the presence of spin-orbit (SO) couplings, using transfer-matrix methods. As the magnitude of SO interactions increases, the…

统计力学 · 物理学 2020-03-06 S. L. A. de Queiroz

In this work we upscale a prototypical kinetic transport equation which models a cell population moving in a fibrous environment with a chemo- or haptotactic signal influencing both the direction and the magnitude of the cell velocity. The…

偏微分方程分析 · 数学 2021-09-30 Anna Zhigun , Christina Surulescu

We study the high temperature transport behavior of the Aubry-Andr\'e-Harper (AAH) model, both in the isolated thermodynamic limit and in the open system. At the critical point of the AAH model, we find hints of super-diffusive behavior…

介观与纳米尺度物理 · 物理学 2018-05-30 Archak Purkayastha , Sambuddha Sanyal , Abhishek Dhar , Manas Kulkarni

We study the translocation of a flexible polymer through extended patterned pores using molecular dynamics (MD) simulations. We consider cylindrical and conical pore geometries that can be controlled by the angle of the pore apex $\alpha$.…

软凝聚态物质 · 物理学 2026-02-11 Andri Sharma , Abhishek Chaudhuri , Rajeev Kapri

We demonstrate that the pattern forming partial differential equation derived from the auxin distribution model proposed by Meyerowitz, Traas and others gives rise to all spiral phyllotaxis properties observed on plants. We show how the…

偏微分方程分析 · 数学 2015-06-12 Matthew Pennybacker , Alan C. Newell

The intensity distribution of electromagnetic polar waves in a chain of near-resonant weakly-coupled scatterers is investigated theoretically and supported by a numerical analysis. Critical scaling behavior is discovered for part of the…

介观与纳米尺度物理 · 物理学 2013-05-29 Sanli Faez , Ad Lagendijk , Alexander Ossipov

In this study, we consider an unmanned aerial vehicle (UAV)-assisted heterogeneous network that is offered as a cost-effective and easy to deploy solution to solve the problem related to transferring traffic of distributed small cells to…

信号处理 · 电气工程与系统科学 2022-03-29 Mohammad Taghi Dabiri , Mazen Omar Hasna

This article introduces a new class of fast algorithms to approximate variational problems involving unbalanced optimal transport. While classical optimal transport considers only normalized probability distributions, it is important for…

最优化与控制 · 数学 2017-05-23 Lenaic Chizat , Gabriel Peyré , Bernhard Schmitzer , François-Xavier Vialard

Recent advancements in physics-informed neural networks (PINNs) and their variants have garnered substantial focus from researchers due to their effectiveness in solving both forward and inverse problems governed by differential equations.…

机器学习 · 计算机科学 2026-01-06 Shivani Saini , Ramesh Kumar Vats , Arup Kumar Sahoo

We revisited the scaling behavior of the transport properties of a quantum dot system described by the spin-1/2 Anderson model using analytical methods. In the low temperature limit we show that the conductance has a universal behavior with…

介观与纳米尺度物理 · 物理学 2009-02-27 M. Crisan , I. Grosu , I. Tifrea

In the present study, the authors introduce a geometrically improved model inspired by the mammalian basilar membrane's properties and special vibratory behavior while conducting a parametric investigation. The goal of this model is to…

动力系统 · 数学 2024-12-18 Amirhossein Omidi Soroor , Pablo A. Tarazaga

Based on our recently proposed plane wave framework, we theoretically study the localized-extended transition in the one dimensional incommensurate systems with cosine type of potentials, which are in close connection to many recent…

计算物理 · 物理学 2020-08-19 Huajie Chen , Aihui Zhou , Yuzhi Zhou

This thesis deals with some theoretical aspects of deterministic freak wave generation in the wave basin of a hydrodynamic laboratory. We adopt the spatial nonlinear Schr\"odinger equation as a mathematical model to describe the deformation…

斑图形成与孤子 · 物理学 2020-06-02 Natanael Karjanto

Elastically-driven motion has been used as a strategy to achieve high speeds in small organisms and engineered micro-robotic devices. We examine the size-scaling relations determining the limit of elastic energy release from elastomer bands…

软凝聚态物质 · 物理学 2024-03-07 Mark Ilton , S. M. Cox , Thijs Egelmeers , Gregory P. Sutton , S. N. Patek , Alfred J. Crosby

We consider a version of the classical Hamiltonian FPU (Fermi-Pasta-Ulam) problem with nonlinear force-strain relation in which a hardening response is taken over by a softening regime above a critical strain value. We show that in addition…

斑图形成与孤子 · 物理学 2024-04-25 Anna Vainchtein , Lev Truskinovsky

We model the expansion of an interacting atomic Bose-Einstein condensate in a disordered lattice with a nonlinear diffusion equation normally used for a variety of classical systems. We find approximate solutions of the diffusion equation…

We present experimental results on hydrothermal traveling-waves dynamics in long and narrow 1D channels. The onset of primary traveling-wave patterns is briefly presented for different fluid heights and for annular or bounded channels,…

斑图形成与孤子 · 物理学 2009-11-07 Nicolas Garnier , Arnaud Chiffaudel , Francois Daviaud , Arnaud Prigent

A theoretical framework is developed for understanding the transient growth and propagation characteristics of thermodynamically coupled, meridional mode-like structures in the tropics. The model consists of a Gill-Matsuno type steady…

大气与海洋物理 · 物理学 2017-06-06 Cristian Martinez-Villalobos , Daniel J. Vimont

We study the longitudinal spin polarization of a relativistic fluid of massive spin-1/2 particles undergoing a boost-invariant expansion in the longitudinal direction and rotating in the transverse plane. We express the polarization vector…

核理论 · 物理学 2025-03-18 Nora Weickgenannt , Jean-Paul Blaizot