Results 91 to 100 of about 4,489 (204)

K-Band Spectroscopy of an Obscured Massive Stellar Cluster in the Antennae Galaxies (NGC 4038/4039) with NIRSPEC [PDF]

open access: yes, 1999
We present infrared spectroscopy of the Antennae Galaxies (NGC 4038/4039) with NIRSPEC at the W. M. Keck Observatory. We imaged the star clusters in the vicinity of the southern nucleus (NGC 4039) in 0.39" seeing in K-band using NIRSPEC's slit-viewing ...
Becklin, E. E.   +8 more
core   +1 more source

ASSESSMENT OF WORKING CONDITIONS AT WORKPLACES OF BOBBIN-DISK AND CYLINDER GRINDING MACHINES

open access: yesAdvanced Engineering Research, 2011
The working conditions at the workplace of the bobbin-disk and cylinder grinding woodworking machines are evaluated. The excess of the standard values of such occupational hazards as dust and noise parameters is stated.
Mikhail A. Tamarkin, Mikhail Y. Shcherba
doaj  

Identification of Technosols formed from industrial dust in the area of Yazd city (Central Iran) by ground-based radiometry

open access: yesБюллетень Почвенного института им. В.В. Докучаева
Intensive industrial development in the form of metallurgical plants and quarries for mining of mineral resources in the vicinity of the city of Yazd resulted in significant dustiness of the ground layer of atmosphere and accumulation of industrial dust ...
M. Akhavan Ghalibaf   +3 more
doaj   +1 more source

Assessment of solar panel contamination via its image in Libya climate

open access: yesСистемный анализ и прикладная информатика
Modern solar power plants are usually built in deserts, in conditions of lack of water and a lot of dust. Dustiness of solar panels leads to a decrease in their efficiency, and cleaning the panels from dust is an energy consuming operation.
A. A. Albagoush, A. B. Kupriyanov
doaj   +1 more source

Can We Trust Real Time Measurements of Lung Deposited Surface Area Concentrations in Dust from Powder Nanomaterials? [PDF]

open access: yes, 2016
Asbach, Christof   +10 more
core   +1 more source

Temporal and spatial variations of the atmospheric dust loading throughout West Africa over the last thirty years

open access: yesAnnales Geophysicae
The dust haze conditions, typical of the African atmosphere south of the Sahara, are a result of wind-generated dust from arid lands. The magnitude of the dust haze is evaluated for the 30-year period beginning in 1957 by calculating the number of ...
G. M. N'Tchayi   +3 more
doaj  

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