Results 31 to 40 of about 282,415 (218)

Global dust model intercomparison in AeroCom phase I [PDF]

open access: yes, 2011
This study presents the results of a broad intercomparison of a total of 15 global aerosol models within the AeroCom project. Each model is compared to observations related to desert dust aerosols, their direct radiative effect, and their impact on the ...
Schulz, M.   +8 more
core   +2 more sources

Dust emission by powder handling: Influence of the hopper outlet on the dust plume [PDF]

open access: yes, 2011
Dust generation in solids handling involving free fall of bulk materials and impacts on a stockpile can cause many problems in industry and be a great danger for operators health. This paper describes an experimental set up to characterize the dust plume
Letourneau, Jean-Jacques   +8 more
core   +1 more source

SPECIFIC FEATURES OF STRUCTURES IN THE INNER COMA OF COMET C/2017 T2 (PANSTARRS) AS OBSERVED WITH THE OMT-800 TELESCOPE OF THE ODESSA OBSERVATORY TELESCOPE NETWORK

open access: yesOdessa Astronomical Publications, 2020
Observations of the comet were carried out using the OMT-800 telescope (the primary mirror diameter D = 80 cm; the focal length F = 214 cm) of the Odessa Observatory telescope network from January to June 2020.
V. V. Kleshchenok   +3 more
doaj   +1 more source

Wide-field polarization imaging and numerical modeling of the coma and tail of comet C/2023 A3 (Tsuchinshan-ATLAS)

open access: yesAstronomy & Astrophysics
Context. Imaging polarimetry enables the spatially resolved investigation of cometary dust properties across different morphological structures. While cometary comae have been studied thoroughly in the pertinent literature, cometary tails have remained ...
Arnaut M.   +5 more
doaj   +1 more source

Development of a compact excavator mounted dust suppression system [PDF]

open access: yes, 2013
This paper reports on the investigation of an excavator mounted dust suppression system for demolition and construction activities. Ever increasing pressure is placed on contractors to improve their environmental performance, especially dust emissions ...
Cheung, Wai Ming, Wallace, Kieran
core   +1 more source

The Pre-perihelion Evolution of the Activity of Comet C/2017 K2 (Pan-STARRS) during the Water Ice-line Crossover

open access: yesThe Astronomical Journal
Comets, relics from the early solar system, consist of dust and ice. The ice sublimates as comets approach the Sun, ejecting dust from their nuclei seen as activity.
Yuna G. Kwon   +6 more
doaj   +1 more source

Synergistic transition from type‐I‐like to type‐II‐like symptomology in a pyrethroid mixture and its impact on knockdown–mortality relationships in Musca domestica L

open access: yesPest Management Science, Volume 82, Issue 10, Page 9614-9627, October 2026.
In the present study, relationship between knockdown and mortality of insecticides was examined against the adult female housefly, Musca domestica. Type‐I pyrethroid insecticides showed a weak linkage, as early knocked down flies did not always result in mortality, while type‐II pyrethroids and organophosphates exhibited strong correlation between the ...
Junho Yoon, Jun‐Hyung Tak
wiley   +1 more source

Charge Measurement of Dust Particles on Photovoltaic Module [PDF]

open access: yes, 2013
Photovoltaic (PV) systems are one of the most promising renewable energy sources in the world, and hence it is important to explore the factors that affect the working / operational efficiency of this source.
Kolhe, M.   +9 more
core   +1 more source

Six Outbursts of Comet 46P/Wirtanen

open access: yesThe Planetary Science Journal, 2021
Cometary activity is a manifestation of sublimation-driven processes at the surface of nuclei. However, cometary outbursts may arise from other processes that are not necessarily driven by volatiles.
Michael S. P. Kelley   +37 more
doaj   +1 more source

Physics of intact capture of cometary coma dust samples [PDF]

open access: yesAIP Conference Proceedings, 2012
The physics of hypervelocity impact into foams are of interest because of application to comet dust capture during flyby encounters. Particles much larger than the foam cells behave as if the foam were a continuum, so that standard equations of fluid mechanics describe the effects of drag and ablation.
Anderson, W. W., Ahrens, Thomas
openaire   +2 more sources

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