The ratio of observed to emitted
energy flux is derived from eq.
Like the changing pitch of a wailing ambulance as it moves past an observer, X rays emitted
by the approaching material are shifted to shorter, or bluer, wavelengths, while those from the receding material get shifted to longer, or redder, wavelengths.
Today there are two types of extraoral film-screen systems, commonly referred to according to the color of the visible light emitted
by their fluorescent materials.
Because the machine is supposed to destroy as much as 99 percent of the chemicals during the heating process, limited quantities are expected to be emitted
, officials said.
Before we began installing catalytic mufflers on cars in 1975 and light trucks in 1980, these vehicles emitted
about 2,000 pounds of exhaust hydrocarbons during a 100,000-mile lifetime.
OSRAM credits its OSTAR LED lighting breakthrough to its proprietary thin-film technology that ensures all the internally produced light is emitted
at the top of the device.
Carbon Monoxide Emissions from Electric Arc Furnaces - ESCO originally used AP-42 information for this source, expressed as pounds of carbon monoxide (CO) emitted
per ton of metal poured (pptp).
This work has confirmed that any potential allergenic species of platinum emitted
, if present at all, would be hundreds to many thousands of times below the most conservative published reference safe exposure levels.
Furthermore, because the coating lies directly on the LED chip, some of the phosphor's light is emitted
back toward the semiconductor chip, where it's absorbed.
Emission reduction credits will be issued to companies that help get rid of the old equipment based on the pounds of pollutants each machine emitted
per year, minus the pollution caused by the replacement model.
Light can also be emitted
in both the visible and non-visible spectrum.
Because the anomalous effects occurred both day and night, the phantom VOCs probably aren't related to isoprene, which is emitted
by vegetation only during daylight hours.