Novel Chromium-Free Technologies for the Prevention of Wet Stack Corrosion on Hot Dipped Metallic Coatings: A Review

CORROSION ◽  
10.5006/2772 ◽  
2018 ◽  
Vol 74 (8) ◽  
pp. 918-935
Author(s):  
Thomas Jurak ◽  
Sina Jamali ◽  
Yue Zhao ◽  
Joe Williams ◽  
Abhishek Saxena ◽  
...  
Keyword(s):  
Atmospheric Corrosion ◽  
Corrosion Inhibitors ◽  
Steel Strip ◽  
Sol Gel ◽  
Earth Metal ◽  
Ultra Violet ◽  
Metal Corrosion ◽  
Metallic Coatings ◽  
Ultra Violet Radiation ◽  
Smart Coatings

Advances in novel corrosion prevention technologies, including organic-inorganic hybrid sol-gel coatings, ultra violet radiation curable coatings, rare earth metal corrosion inhibitors, and other additions for the fabrication of smart coatings, and their potential application to hot dipped metallic coated steel strip products have been reviewed. Rather than exploring the prevention of atmospheric corrosion as in similar publications in the field, the authors have instead placed emphasis on the feasibility of the technologies for protection against “wet stack corrosion,” also known as wet storage staining. Such corrosion of hot dipped metallic coatings is a common problem in industry, but one rarely explored in academia.

Green Synthesis of Copper Oxide Nanoparticles using Cucumis sativus (cucumber) Extracts and their Bio-physical and Biochemical Characterization for Cosmetic and Dermatologic Applications

2020 ◽  
Vol 20 ◽  
Author(s):  
Monika Vats ◽  
Shruti Bhardwaj ◽  
Arvind Chhabra
Keyword(s):  
Copper Oxide ◽  
Green Synthesis ◽  
Biochemical Characterization ◽  
Chemical Characterization ◽  
Ultra Violet ◽  
Skin Penetration ◽  
Copper Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Ultra Violet Radiation ◽  
Anti Fungal

Background & Objective: Nanoparticles are used in cosmetic and dermatologic products, due to better skin penetration properties. Incorporation of natural products exhibiting medicinal properties in nano-preparations could significantly improve efficacy of these products and improve the quality of life without the side effects of synthetic formulations. Methods: We here report green synthesis of Copper Oxide nanoparticles, using Cucumber extract, and their detailed biophysical and bio-chemical characterization. Results: These Copper Oxide-Cucumber nanoparticles exhibit significant anti-bacterial and anti-fungal properties, Ultra Violet-radiation protection ability and reactive-oxygen species inhibition properties. Importantly, these nanoparticles do not exhibit significant cellular toxicity and, when incorporated in skin cream, exhibit skin rejuvenating properties. Conclusion: Our findings have implications for nanoparticle-based cosmetics and dermatologic applications.

Ultra-Violet Radiation and Varicose Ulcers

BMJ ◽  
1927 ◽  
Vol 2 (3479) ◽  
pp. 472-472
Author(s):  
M. Weinbren
Keyword(s):  
Ultra Violet ◽  
Ultra Violet Radiation ◽  
Violet Radiation

Ultra-Violet Radiation and the Production of Twins and Double Monsters

1931 ◽  
Vol 4 (3) ◽  
pp. 461-485 ◽  
Author(s):  
Marie A. Hinrichs ◽  
Ida T. Genther
Keyword(s):  
Ultra Violet ◽  
Ultra Violet Radiation ◽  
Violet Radiation

scholarly journals Extensive reduction of surface UV radiation since 1750 in world's populated regions

2009 ◽  
Vol 9 (20) ◽  
pp. 7737-7751 ◽  
Author(s):  
M. M. Kvalevåg ◽  
G. Myhre ◽  
C. E. Lund Myhre
Keyword(s):  
Uv Radiation ◽  
Correlation Coefficients ◽  
Ultra Violet ◽  
Radiative Transfer Model ◽  
Transfer Model ◽  
Polar Regions ◽  
Ultra Violet Radiation ◽  
Wide Range ◽  
Extensive Surface ◽  
Year 2000

Abstract. Human activity influences a wide range of components that affect the surface UV radiation levels, among them ozone at high latitudes. We calculate the effect of human-induced changes in the surface erythemally weighted ultra-violet radiation (UV-E) since 1750. We compare results from a radiative transfer model to surface UV-E radiation for year 2000 derived by satellite observations (from Total Ozone Mapping Spectroradiometer) and to ground based measurements at 14 sites. The model correlates well with the observations; the correlation coefficients are 0.97 and 0.98 for satellite and ground based measurements, respectively. In addition to the effect of changes in ozone, we also investigate the effect of changes in SO2, NO2, the direct and indirect effects of aerosols, albedo changes and aviation-induced contrails and cirrus. The results show an increase of surface UV-E in polar regions, most strongly in the Southern Hemisphere. Furthermore, our study also shows an extensive surface UV-E reduction over most land areas; a reduction up to 20% since 1750 is found in some industrialized regions. This reduction in UV-E over the industrial period is particularly large in highly populated regions.

Effects of Ultra-Violet Radiation on Oysters

Nature ◽  
1958 ◽  
Vol 181 (4614) ◽  
pp. 1013-1013 ◽  
Author(s):  
I. A. ABOUL-ELA
Keyword(s):  
Ultra Violet ◽  
Ultra Violet Radiation ◽  
Violet Radiation
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