منابع مشابه
Aerosol and NOx emission factors
Aerosol and NOx emission factors and submicron particle number size distributions in two road tunnels with different traffic regimes D. Imhof, E. Weingartner, A. S. H. Prévôt, C. Ordóñez, R. Kurtenbach, P. Wiesen, J. Rodler, P. Sturm, I. McCrae, Å. Sjödin, and U. Baltensperger Paul Scherrer Institut, Laboratory of Atmospheric Chemistry, Villigen, Switzerland University of Wuppertal, Physical Ch...
متن کاملUltraviolet light and pterygium.
The purpose of this study was to evaluate the contribution of ultraviolet light (UV) as a causal factor of primary and pterygium recurrence. A conjuctival autograft transplantation was a surgical method of pterygium treatment. In the first group (38 eyes) were patients with primary and recurrent pterygium exposed to sun (worked outdoors), evaluating geodemographic status, and in the second grou...
متن کاملUltraviolet Light
Ultraviolet light (UV) is a recognized disinfection alternative to chlorine and ozone in many applications from drinking water to wastewater treatment. UV provides effective disinfection without production of problematic disinfection byproducts. Information on the mechanism and application of UV for drinking water disinfection is presented. Advantages and disadvantages of the technique are disc...
متن کاملDevelopment of NOx Emission and Electrochemical Detection in Atmosphere
Reactive NOx is one of the major air pollutants, which also plays a key role as greenhouse gas. Many research efforts have been devoted to not only detection of NOx in air but also abatement of NOx emission. The aim of this mini review is to provide a panoramic snapshot of the electrochemical analysis methods for the emission and detection of NOx in atmosphere, with special emphasis on NOx sens...
متن کاملUltraviolet Light and Reptiles, Amphibians
Ultraviolet lighting is integral for the growth and maintenance of many reptile and amphibian species. But providing an adequate source of light can be challenging. Many disease processes seen by veterinarians are attributed to ultraviolet lighting deficiencies. In mammals, disease due to excess ultraviolet lighting has been noted, and some veterinarians feel this may be a potential issue in re...
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ژورنال
عنوان ژورنال: Nature
سال: 2003
ISSN: 0028-0836,1476-4687
DOI: 10.1038/422134a