Results 31 to 40 of about 10,248,710 (343)

Quantifying the Dynamics of Polystyrene Microplastics UV-Aging Process

open access: yesEnvironmental Science and Technology Letters, 2021
: Massive amounts of plastic waste have been released into ecosystems, generating huge amounts of microplastics (MPs) and nanoplastics (NPs) during the environmental aging process.
Ziyi Liu   +9 more
semanticscholar   +1 more source

STRUCTURAL INVESTIGATION OF UV AGED TENT FABRICS

open access: yesTekstil ve Konfeksiyon, 2019
Emergency tent is a basic human need and a critical determinant for survival and coping in the majority of crises. There are many reasons people might need temporary shelters. Natural disasters like hurricanes, earthquakes, floods, fires, and tornados are some of them.
Emrah TEMEL   +2 more
openaire   +3 more sources

UV Dichroism in Vertically Aligned Nematic Displays [PDF]

open access: yes, 2008
Vertically aligned negative nematics are employed in high-end projection applications, where extremely high light fluxes are employed. Under these conditions, the UV photochemical stability of the material becomes an issue that must be included in the ...
Bennis, Noureddine   +5 more
core   +2 more sources

Influence of Ultraviolet Aging on Adhesion Performance of Warm Mix Asphalt Based on the Surface Free Energy Theory

open access: yesApplied Sciences, 2019
To explore the effect of ultraviolet (UV) aging on the adhesion properties of warm mix asphalt (WMA), WMA binders were prepared by adding Evotherm M1 and Sasobit into base asphalt. The base asphalt and two WMA binders were aged using a self-made UV aging
Bo Li   +4 more
doaj   +1 more source

Overview on topical 5-ALA photodynamic therapy use for non melanoma skin cancers [PDF]

open access: yes, 2014
Ultraviolet radiation (UV) contributes to a variety of skin diseases including inflammation, degenerative aging, and cancer. Historically, humans have been exposed to UV radiation mainly through occupational exposure; recreational UV exposure, however ...
Bianchini, Daniela   +7 more
core   +3 more sources

Optical Polarization and Spectral Variability in the M87 Jet [PDF]

open access: yes, 2011
During the last decade, M87's jet has been the site of an extraordinary variability event, with one knot (HST-1) increasing by over a factor 100 in brightness. Variability was also seen on timescales of months in the nuclear flux.
Adams, Steven C.   +12 more
core   +3 more sources

Development and experimental validation of an overlay mortar with biocide activity [PDF]

open access: yes, 2016
Biodeterioration of concrete by microorganism colonisation may be a problem in several structures, especially in irrigation and hydroelectric canals.
Aguado de Cea, Antonio   +4 more
core   +2 more sources

Vapor phase surface functionalization under ultra violet activation of parylene thin films grown by chemical vapor deposition [PDF]

open access: yes, 2010
Various reactive gas phase treatments have been investigated as surface functionalization dry processes with the goal to improve the wettability of parylene C films, keeping good optical properties in the visible range. The films were grown on different
Maury, Francis   +2 more
core   +2 more sources

Rheological Properties and Microscopic Characterization of Delayed Decay-Modified Asphalt Based on UV Ageing

open access: yesAdvances in Materials Science and Engineering, 2023
For clarifying the applying feasibility of hindered amine light stabilizers in asphalt binder, two types of hindered amine light stabilizers were chosen as a UV ageing resistance modifier and the modified asphalt was prepared with a selected UV ageing ...
Hening Gu   +5 more
doaj   +1 more source

Influence of temperature, UV-light wavelength and intensity on polypropylene photothermal oxidation [PDF]

open access: yes, 2014
A criterion based on the energy absorbed by photosensitive species was proposed to describe the contribution of UV-light to the initiation of the polypropylene photothermal oxidation whatever the light source. The calculation of this energy was performed
COLIN, Xavier   +3 more
core   +4 more sources

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