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The physics of wind-blown sand and dust [PDF]

open access: yesReports on Progress in Physics, 2012
The transport of sand and dust by wind is a potent erosional force, creates sand dunes and ripples, and loads the atmosphere with suspended dust aerosols.
Karam, Diana Bou   +3 more
core   +9 more sources

A physics-guided machine learning framework for enhancing dust storm visibility prediction in arid and semi-arid regions [PDF]

open access: yesScientific Reports
Dust sharply degrades visibility in arid and semi-arid regions, yet operational forecasting remains challenged by near-surface process errors in numerical weather prediction (NWP) and the poor generalization of purely data-driven models.
Chang Xu   +8 more
doaj   +2 more sources

Charged Atmospheric Aerosols from Charged Saltating Dust Aggregates

open access: yesAtmosphere, 2023
Grain collisions in aeolian events, e.g., due to saltation, result in atmospheric aerosols. They may regularly be electrically charged, but individual charge balances in collisions including small grains are not easily obtained on the ground.
F. Chioma Onyeagusi   +4 more
doaj   +1 more source

The outer dusty edge of accretion disks in active galactic nuclei

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Recent models for the inner structure of active galactic nuclei (AGN) aim at connecting the outer region of the accretion disk with the broad-line region and dusty torus through a radiatively accelerated, dusty outflow.
Hermine Landt
doaj   +1 more source

Analysis of gamma-emitting radionuclides in soils around high energy accelerators

open access: yesRadiation Medicine and Protection, 2022
Objective: To investigate the specific activities of gamma radionuclides in the soils around high energy accelerators, and to analyze the influence of rays emitted by nuclides with characteristic peaks at similar energy points on nuclide measurement ...
Jiaying Wang   +4 more
doaj   +1 more source

Influence of multi-ion on the dust grain surface potential of complex plasmas using non-Maxwellian approach

open access: yesResults in Physics, 2021
Dust grain surface potential in multi-ion plasmas having two negative ions within the context of kappa-distributed dusty plasma is studied analytically and numerically.
Abdullah Khan   +6 more
doaj   +1 more source

Analyzing LDEX's Current Measurements in Lunar Orbit

open access: yesThe Planetary Science Journal, 2023
The Lunar Dust Experiment (LDEX) on board the Lunar Atmosphere and Dust Environment Explorer mission orbited the Moon from 2014 September to 2015 April and observed a dynamic, permanently present dust cloud produced by continual meteoroid bombardment. In
Edwin Bernardoni   +2 more
doaj   +1 more source

Time-Synchronized Microwave Cavity Resonance Spectroscopy and Laser Light Extinction Measurements as a Diagnostic for Dust Particle Size and Dust Density in a Low-Pressure Radio-Frequency Driven Nanodusty Plasma

open access: yesApplied Sciences, 2022
In a typical laboratory nanodusty plasma, nanometer-sized solid dust particles can be generated from the polymerization of reactive plasma species. The interplay between the plasma and the dust gives rise to behavior that is vastly different from that of
Tim Donders, Tim Staps, Job Beckers
doaj   +1 more source

Late-time behaviour of the Einstein-Vlasov system with Bianchi I symmetry

open access: yes, 2010
The late-time behaviour of the Einstein-dust system is well understood for homogeneous spacetimes. For the case of Bianchi I we have been able to show that the late-time behaviour of the Einstein-Vlasov system is well approximated by the Einstein-dust ...
Calogero S   +8 more
core   +3 more sources

Simulation of grid morphology’s effect on ion optics and the local electric field

open access: yesAIP Advances, 2022
Electric field ion optics are employed by many scientific instruments for investigating ions, e.g., using time-of-flight mass spectrometers. A common design feature of such instruments is the grounded grid that provides boundaries between regions that ...
Z. Levin, S. Kempf
doaj   +1 more source

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