منابع مشابه
Improving Air Quality with Electric Vehicles
• Components of Photochemical Smog • Why High Levels of Ozone in the Air are Undesirable Antioxidants in the Lungs Ozone as an Oxidizing Agent • Automobile Emissions Increase Ozone Concentrations Incomplete Combustion of Gasoline Produces Volatile Organic Hydrocarbons (VOC) Combustion at High Temperatures Produces NO VOC, NO and Sunlight Result in Ozone Formation • Reducing Nitrogen Oxides and ...
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This study offers evidence for an environmental effect on languages while relying on continuous linguistic and continuous ecological variables. Evidence is presented for a positive association between the typical ambient humidity of a language's native locale and that language's degree of reliance on vowels. The vowel-usage rates of over 4000 language varieties were obtained, and several method...
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Lyophilization, the removal of water by freezing and then volatilization at low pressure and temperature, has been employed as a standard long-term preservation method for many filamentous fungi. The method outlined involves the use of standard shelf freeze-drying and skimmed milk as a suspending solution/lyoprotectant. This approach has been employed to freeze-dry the majority of the 50,000 fu...
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[1] We report results of a field campaign conducted in the Nevada desert with a suite of electric field instruments consisting of a field mill (FM) and a short dipole antenna (SDA). Furthermore, we show that a combination of the measurements of these two instruments allows the estimation of the electric resistivity of air, an important quantity that is extremely difficult to measure near the Ea...
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ژورنال
عنوان ژورنال: Nature
سال: 2002
ISSN: 0028-0836,1476-4687
DOI: 10.1038/415383a