Ozone gas is made of three molecules of oxygen connected with double bonds. This important molecule can be found in the stratosphere, or upper atmosphere, naturally. However, due to pollution it is also present in the troposphere, or lower atmosphere, where it can cause health problems and ...
The attenuation by atmospheric scattering, irrespective of source, is an inverse function of the wavelength. Absorption of insolation in the atmosphere is due mainly to ozone in the ultraviolet range and water vapor in the infrared range of the solar spectrum. Ozone absorption decreases with ...
Since the 1960s, the development of contraceptive methods, the expansion of economic wealth, the increasing education level among women, and the participation of women in the work force have prompted many women to delay family planning [1, 2]. Owing to this delay, an increasing number of ...
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Finally, inefficient development patterns and over-consumption in high-income countries are causing changes in the atmosphere that contribute significantly to global warming and ozone-layer depletion MultiUn 印度的《国家农村就业保障法》是被人广泛引用用于说明这种政策趋势的例子;该法案规定每年向大约5 000...
This is significantly better than LiF with similar WF (~3.0−3.4 eV), which fails within 5 mins even under nitrogen atmosphere6. Even for the TPHP(LiClO4)-coated graphene with an ultralow WF of 2.2 eV, it only shows ~0.05 eV increase in WF after standing in air for 5...
Hematopoietic stem cells provide the body with a constant supply of blood cells, including the red blood cells that deliver oxygen and the white blood cells that make up the immune system. Hematopoietic -- or blood -- stem cells must also make more copie
1. A cleaning sheet comprising a cleaning layer and a releasable protective film laminated on the cleaning layer, wherein each of the relative intensities of the fragment ions of CH3Si+, C3H9Si+, C5H15Si2O+, C5H15Si3O3+, C7H21Si3O2+, CH3SiO−, CH3SiO2−and Si+in the cleaning ...
of least variation of the k value with wavelength, it was learned that the atmosphere over the polar region was not as turbid as that over the deserts; and that the ozone, discovered from spectral inversion of the same data, is either low in the atmosphere or trapped in the polar cap. ...
Before entering the atmosphere, the spectrum of the sun radiance ranges from 200 to 2600 nm. At approximately 20 to 30 kms from the earth surface, a first alteration occurs, due to the presence of ozone which absorbs ultraviolets C (100–280 nm). While going down deeper into the ...