Results 11 to 20 of about 382,871 (240)

Evaluation of the ability of radiation transmission model and MODIS images to estimate aerosol optical depth [PDF]

open access: yesمدیریت بیابان, 2018
Aerosols play an important role in the climate system of the atmosphere. These atmospheric particles are directly affected by changing radiation exposure by diffusing and absorbing different wavelengths and indirectly by changing the optical properties ...
Saeid Farhadi   +4 more
doaj   +1 more source

Spatial and temporal variations of aerosols around Beijing in summer 2006: Model evaluation and source apportionment [PDF]

open access: yes, 2009
Regional aerosol model calculations were made using the Weather Research and Forecasting (WRF)-Community Multiscale Air Quality (CMAQ) and WRF-chem models to study spatial and temporal variations of aerosols around Beijing, China, in the summer of 2006 ...
Blake, DR   +13 more
core   +1 more source

Extreme Saharan dust events expand northward over the Atlantic and Europe, prompting record-breaking PM10 and PM2.5 episodes [PDF]

open access: yesAtmospheric Chemistry and Physics
Unprecedented extreme Saharan dust (duxt) events have recently expanded northward from subtropical NW Africa to the Atlantic and Europe, with severe impacts on the Canary Islands, mainland Spain and continental Portugal.
S. Rodríguez, J. López-Darias
doaj   +1 more source

Application of a wireless sensor system for object protection using infrared sensors

open access: yesКомпьютерная оптика, 2021
In this work, an algorithm that makes decisions on whether or not an object under protection has been penetrated based on data from infrared (IR) sensors included in a wireless sensor system is considered. Based on theoretical considerations, methods for
V.I. Parfenov, V.D. Le
doaj   +1 more source

Constraints on climate forcing by sulphate aerosols from seasonal changes in Earth's spin [PDF]

open access: yes, 2014
Angular momentum exchanges between atmosphere and solid Earth are strongly modulated by variations in global atmospheric circulation. Geodetically determined length-of-day (LOD) fluctuations provide an independent resource to investigate climate ...
SOTTILI, Gianluca
core   +1 more source

Practicalities and Driving Dynamics of a Real Driving Emissions (RDE) Euro 6 Regulation Homologation Test

open access: yesEnergies, 2019
One of the most important sources of air pollution, especially in urban areas, is the exhaust emissions from passenger cars. New European emissions regulations, to minimize the gap between manufacturer-reported emissions and those emitted on the road ...
Timothy Bodisco, Ali Zare
doaj   +1 more source

On the Insignificance of Photochemical Hydrocarbon Aerosols in the Atmospheres of Close-in Extrasolar Giant Planets [PDF]

open access: yes, 2004
The close-in extrasolar giant planets (CEGPs) reside in irradiated environments much more intense than that of the giant planets in our solar system. The high UV irradiance strongly influences their photochemistry and the general current view believed ...
-T, Anthony Y.   +5 more
core   +3 more sources

Measurement of PM2.5 Mass Concentration Using an Electrostatic Particle Concentrator-Based Quartz Crystal Microbalance

open access: yesIEEE Access, 2019
Particulate matter (PM) is one of the most critical air pollutants, and various instruments have been developed to measure PM mass concentration. Of these, quartz crystal microbalance (QCM) based instruments have received much attention.
Nhan Dinh Ngo   +3 more
doaj   +1 more source

Development and qualitative assesment of medicinal aerosol with lidocaine hydrochloride based on sodium alginate [PDF]

open access: yesFarmacja Polska, 2021
Medicinal aerosols for external use are a less popular form of the drug than aerosols for internal use, i.e., inhalation aerosols. Most common are dermal and nasal aerosols. If the aerosol is used on damaged skin, it must be sterile.
Marta Czapiewska, Piotr Bilski
doaj   +1 more source

Photophoresis – a Forgotten Force ??

open access: yesKONA Powder and Particle Journal, 2014
In general a force will act on a particle illuminated by light or other radiation and absorbing part of the flux, and as a consequence a motion will result.
Helmuth Horvath
doaj   +1 more source

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