The ozone layer(臭氧层) is a thin layer of gas around the earth. It forms a special “blanket” around the planet. This “blanket” protects the earth from dangerous rays produced by the sun. Without the ozone layer, the earth’s climate could warm to dangerous levels. This increase in...
The evolution of the ozone layer is affected by the interplay betweenatmospheric chemistryand dynamics like wind and temperature. Total polar ozone in the northern and southern hemispheres as measured by various instruments, including GOME, SCIAMACHY and GOME-2 flown on ERS-2, Envisat and MetOp, r...
Destruction of the Ozone Layer: The ozone layer is an important concentration of ozone gas that exists in the stratosphere. In the 1920's to the 1970's refrigerants, coolants, and aerosols were produced that contained chemicals that reacted with and destroyed the ozone layer. The production of...
the ozone layer, how- ever, shields the earth by absorbing ultraviolet radiation and thus prevents most of this lethal radiation from reach- ing the earth's surface. 12.7 • Dalton's Law of partial pressures 267 In the lower atmosphere ozone is a harmful pollutant. Ozone is formed in the...
ultraviolet radiation; it wasn’t until about 2.4 Ga that photosynthetic cyanobacteria oxygenated Earth’s atmosphere to form a protective stratospheric ozone layer that the flux of UV radiation reaching Earth’s surface diminished significantly85. Third, all complex, multicellular life is eukaryotic. ...
For example, even with a large overall density of molecular trajectories in Figure 1, the diffusion coefficient map (Fig. 1b) exhibits low density within the photodegraded areas. This is due to the very short residence times in those surface regions, which results in short local trajectories....
Photovoltaic (PV) panels are one of the most important solar energy sources used to convert the sun’s radiation falling on them into electrical power
This meant that the droplets were prone to floating out of the field of view on the microscope when using a normal, flat cover slip, while using the HF-etched shallow microwells meant that the droplets could be contained within the viewing area. Flat cover slips actually worked perfectly well...
About 90% of atmospheric ozone (O3) is contained in the ozone layer at around 25 km height, which absorbs the solar ultraviolet radiation (UV) and heats the stratosphere [1]. Following the discovery of the Antarctic ozone hole in 1985 [2] and the report of an indication of an ozone rec...
Within the work, to derive this mode of reasoning, the sciences and the dialectics are asserted in their unity. The relationship between the organism and its inorganic nature is one of tension. The organism in its finitude is in opposition to its inorganic nature; it is compelled to act to...