For regions with a "Moderate" level of pollution by EPA definition, a major source is one that emits
100 TPY, and is allowed six years for compliance.
In conclusion we found EMIT
to be a rapid, viable, and specific assay for measuring CsA concentrations in transplant recipients.
result 7-Aminoflunitrazepam Emit
n Median (range), [micro] g/L 0 0 -- -- Negative, but >0 22 130 (80-180) 80 (60-120) Positive 100 350 (200-1000) 180 (60-1400) Emit
+ results are given as benzodiazepine equivalents with oxazepam as the standard substance.
In newer work, the researchers have created a three-dot LED that can emit
red, blue, and green.
Lin says his group plans to develop tungsten photonic crystals that include, on a single microchip, both a heated region that emits
infrared radiation and another region that converts those thermal emissions into laserlike beams for driving telecommunications networks.
What makes the new laser truly a single-atom device, McKeever says, is that the atom remains confined long enough-roughly a tenth of a second--to emit
a beam of photons by itself.
When electrons drop into those middle levels, they emit
photons with less energy, and therefore longer wavelengths, than usual.
These ions emit
a particular wavelength of blue light, 488.
Typically, lasers emit
light of one pure color, or wavelength.
Still, the work may spur researchers to pursue making lasers of deeply etched, or porous, silicon, which has been shown to emit
light in response to electric signals but not to amplify light, he says.