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Related papers: Changes in sinking of plankton--like particle: com…

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We conduct numerical simulations based on a model of blowing snow to reveal the long-term properties and equilibrium state of aeolian particle transport from $10^{-5} \hspace{0.5 ex} \mathrm{m}$ to $10 \hspace{0.5 ex} \mathrm{m}$ above the…

Geophysics · Physics 2017-04-26 Hirofumi Niiya , Kouichi Nishimura

We present laboratory experiments of surface wave turbulence excited by paddles in the deep water regime. The free surface is seeded with buoyant particles that are advected and dispersed by the flow. Positions and velocities of the…

The lower solar atmosphere is an intrinsically multi-component and collisional environment with electron and proton collision frequencies in the range $10^{8}-10^{10}$ Hz, which may be considerably higher than the gyro-frequencies for both…

Solar and Stellar Astrophysics · Physics 2013-06-04 J. Vranjes , P. S. Krstic

Aims. We aim to improve the understanding of the physical mechanisms behind the slower than free-fall motion and the two-stage evolution (an initial phase of acceleration followed by an almost constant velocity phase) detected in coronal…

Solar and Stellar Astrophysics · Physics 2020-02-05 David Martínez-Gómez , Ramón Oliver , Elena Khomenko , Manuel Collados

For over hundreds of millions of years, sea turtles and their ancestors have swum in the vast expanses of the ocean. They have undergone a number of evolutionary changes, leading to speciation and sub-speciation. However, in the past few…

Computer Vision and Pattern Recognition · Computer Science 2021-07-30 Aditya Jyoti Paul

In this work, we present a leptonic, time-dependent model of pulsar wind nebulae (PWNe). The model seeks a solution for the lepton distribution function considering the full time-energy dependent diffusion-loss equation. The time-dependent…

High Energy Astrophysical Phenomena · Physics 2015-06-11 Jonatan Martin , Diego F. Torres , Nanda Rea

Air pollution has become a major issue and caused widespread environmental and health problems. Aerosols or particulate matters are an important component of the atmosphere and can transport under complex meteorological conditions. Based on…

Atmospheric and Oceanic Physics · Physics 2018-08-15 Yongwen Zhang , Dean Chen , Jingfang Fan , Shlomo Havlin , Xiaosong Chen

This paper discusses the time series trend and variability of the cyclone frequencies over Bay of Bengal, particularly in order to conclude if there is any significant difference in the pattern visible before and after the disastrous 2004…

Applications · Statistics 2017-08-15 Arnab Hazra

Sub-Neptune type exoplanets are abundant in our galaxy yet have no solar system analogs. They exist in a broad range of stellar forcing and rotational regimes that are distinctly different from solar system planets and more commonly studied…

Earth and Planetary Astrophysics · Physics 2023-06-01 Ekaterina Landgren , Alice Nadeau , Nikole Lewis , Tiffany Kataria , Peter Hitchcock

We investigate ocean circulation changes through the lens of data assimilation using a reduced-order model. Our primary interest lies in the Stommel box model which reveals itself to be one of the most practicable models that has the…

Dynamical Systems · Mathematics 2024-09-17 Nathaniel Smith , Anvaya Shiney-Ajay , Emmanuel Fleurantin , Ivo Pasmans

The process by which particles are entrained by the fluid in Rayleigh-B\'{e}nard convection is studied by means of particle-resolved numerical simulations in a periodic domain at a Rayleigh number of $10^7$. The fluid Prandtl number is 1…

Fluid Dynamics · Physics 2024-10-07 Xianyang Chen , Rodolfo Ostilla Monico , Daniel Floryan , Andrea Prosperetti

Using kinetic Monte Carlo simulations and a bond-counting ansatz, thermal stability and diffusion of an adatom island on a crystal surface are studied. At low temperatures, the diffusion constant $D$ is found to decrease for a wide range of…

Condensed Matter · Physics 2009-10-31 T. Muller , W. Selke

This work investigates the impact of seasonal variations in seismic noise on the low-frequency performance of the Einstein Telescope (ET) at the Sardinia candidate site, focusing on implications for compact binary coalescence observations.…

The effects of sampling rate and total measurement time have been determined for single-point measurements of step fluctuations within the context of first-passage properties. Time dependent STM has been used to evaluate step fluctuations…

Statistical Mechanics · Physics 2007-05-23 D. B. Dougherty , C. Tao , O. Bondarchuk , W. G. Cullen , E. D. Williams , M. Constantin , C. Dasgupta , S. Das Sarma

The deposition of nanometer-scale particles is of significant interest in various industrial processes. While these particles offer several advantages, their deposition can have detrimental effects, such as reducing the heat transfer…

Fluid Dynamics · Physics 2025-02-19 A. K. Nayak , A. Singh , M. Mesgarpour , M. S. Shadloo

We study how changes in population size and fluctuating environmental conditions influence the establishment of seed banks in plants. Our model is a modification of the Wright-Fisher model with seed bank, introduced by Kaj, Krone and…

Probability · Mathematics 2026-02-05 Alison Etheridge , João Luiz de Oliveira Madeira

Wavelet Monte Carlo dynamics simulations are used to study the dynamics of passive particles in the presence of microswimmers, taking account of the often-omitted thermal motion alongside the hydrodynamic flows generated by the swimmers.…

Soft Condensed Matter · Physics 2021-07-23 Oliver T. Dyer , Robin C. Ball

We study the dependency of the concentration on mass and redshift using three large N-body cosmological hydrodynamic simulations carried out by the Magneticum project. We constrain the slope of the mass-concentration relation with an…

Cosmology and Nongalactic Astrophysics · Physics 2019-05-08 Antonio Ragagnin , Klaus Dolag , Lauro Moscardini , Andrea Biviano , Mauro D'Onofrio

$\beta$-decay, a process that changes a neutron into a proton (and vice versa), is the dominant decay mode of atomic nuclei. This decay offers a unique window to physics beyond the standard model, and is at the heart of microphysical…

A model-data inversion is applied to a very large observational dataset collected in the Southern Ocean north of the Ross Sea during late autumn to early winter, producing estimates of the frequency-dependent rate of dissipation by sea ice.…

Atmospheric and Oceanic Physics · Physics 2020-06-16 W. Erick Rogers , Michael H. Meylan , Alison L. Kohout