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Development mechanism of aging depth of bitumen with increasing UV aging time
Case Studies in Construction Materials, 2022 The UV aging of bitumen has a significant influence on the pavement service life, therefore, the research on UV aging has attracted increasing attention recently.
Yuanyuan Li +6 more
doaj +2 more sources
Structural and Performance Studies of Lanthanum–Nitrogen Co-Doped Titanium Dioxide Thin Films Under UV Aging [PDF]
MicromachinesIn this study, lanthanum–nitrogen co-doped titanium dioxide (La-N-TiO2) thin films were fabricated using Ion Beam Assisted Deposition (IBAD) and subjected to accelerated ultraviolet (UV) aging experiments to systematically investigate the impact of co ...
Pengcheng Cao, Li Zhang, Yanbo Yuan
doaj +2 more sources
Optical and UV-Aging Properties of LDH-Modified Bitumen. [PDF]
Materials (Basel), 2015 Layered double hydroxides (LDHs) are an ultraviolet-light (UV) resistant material. In this study, LDHs were used to modify bitumen. The optical and UV aging properties of LDHs modified bitumen were investigated. Firstly, the thin films of bitumen, with and without LDHs, were prepared.
Liu X, Wu S, Liu G, Li L.
europepmc +4 more sources
Dermato-Endocrinology, 2012 Skin is a model of choice in studies on aging. Indeed, skin aging can be modulated by internal and external factors, reflecting its complexity. Two types of skin aging have been identified: intrinsic, mainly genetically determined and extrinsic-also called "photo-aging"-resulting on the impact of environmental stress and more precisely of UV rays ...
Debacq-Chainiaux, Florence +3 more
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Kinematics and Ages of UV Ceti Stars [PDF]
International Astronomical Union Colloquium, 1995 AbstractThe kinematic properties of 93 UV Ceti stars of the solar neighborhood are studied, based on a list of flares within 25 pc of the Sun (π ≥ 0".04). With updated values for their distances, proper motions and radial velocities (Gliese & Jahreiss 1991) space velocity dispersions are calculated for these stars.
A. Poveda, C. Allen, M. A. Herrera
openaire +1 more source
Reviews on Advanced Materials Science, 2023 To clarify the effect of Hindered amine light stabilizer (HALS) on ultraviolet (UV) aging behavior of asphalt binder, the evolution history and characteristics of the UV induced micro-structure of modified asphalt were characterized.
Sun Xiaolong +6 more
doaj +1 more source
Case Studies in Construction Materials, 2023 Compared with hot mix asphalt, warm mix asphalt ( WMA) has inferior adhesion performance, and ultraviolet (UV) aging will further weaken the adhesion performance of WMA.
Bo Li +6 more
doaj +1 more source
UV Aging Effects on Polycarbonate Properties [PDF]
Journal of Failure Analysis and Prevention, 2020 This work deals with the effects of ultraviolet (UV) aging on polycarbonate (PC) properties. Thus, a PC was subjected to accelerated UV radiation with a wavelength range from 200 to 280 nm, at different times. Induced changes in the material were studied by UV–visible spectrophotometry, Fourier transform infrared (FTIR) spectroscopy and X-ray ...
Redjala, S. +5 more
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Synergistic effect of thermal oxygen and UV aging on natural rubber
e-Polymers, 2023 The oxidation of natural rubber (NR) leads to a decrease in mechanical properties, even resulting in failure of NR products. Many studies focusing on this single factor have failed to fully elucidate the impact of tropical island environment on NR ...
Zhou Meng-Zhen +4 more
doaj +1 more source
Dermato-Endocrinology, 2012 Age-associated skin lesions linked to UV radiation (UVR) include actinic keratosis, non-melanoma skin cancer-such as basal cell carcinoma and squamous cell carcinoma-lentigo senilis and lentigo maligna. Their incidence is increasing worldwide, mainly due to exaggerated UV exposure and to an aging population. Early diagnosis and therapy of pre-malignant
Tsatsou, Fragkiski +4 more
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