نتایج جستجو برای: background concentrations
تعداد نتایج: 1108431 فیلتر نتایج به سال:
The U.S. Clean Air Act identifies 188 hazardous air pollutants (HAPs), or "air toxics," associated with adverse human health effects. Of these air toxics, 18 were targeted as the most important in a 10-City Pilot Study conducted in 2001 and 2002 as part of the National Air Toxics Trend Sites Program. In the present analysis, measurements available from monitoring networks in North America were ...
in the present study, the effect of e-64 at different concentrations (0.5, 1, 5 and 10 µm) added to (1) the ivm medium on oocyte nuclear maturation and developmental competence of ovine oocytes, and (2) to the ivc medium on embryonic development of ovine embryos were investigated.
In the quantification model of emission intensity sources, estimation background concentration greenhouse gases near an source is important problem. The traditional method estimating through statistical information often results in a certain deviation. order to solve this problem, we propose adaptive CO2 concentrations sources work, which takes full advantage robust local regression and Gaussia...
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