There is much work that remains to be done with the visible emissions.

There are no visible emissions which would indicate that lead is being released into the air.

Concern for air pollution focused exclusively upon visible emissions, especially smoke.

The visible emission was still too faint for eyes to make out, but quite enough for their instruments.

They'd spend good money on a device to suppress the visible emission, then quickly make up the cost in cheap fuel.

To prevent visible emission of steam, two opposite systems were used:

Any vehicle with excessive visible emissions can be ticketed.

Investigate foul odours, visible emissions (smoke), or noise that would be unpleasant to neighbours.

Both Coke Production and Steelmaking have programs in place to reduce visible emissions.

The visible emission spectrum of MgD has been reexamined at high resolution.

ASI will continue to apply flame technology to enhance the control of visible emissions from this source.

Although the plant met regulatory requirements and emitted innocuous steam, the company had promised the community there would be no visible emissions.

For aeropropulsion technologies there is the additional challenge of environmental effects where both noxious and particulate or visible emissions must be reduced.

(1) Subject to subsection (2), a new generating unit should not emit visible emissions with opacity greater than 20%.

However, the wavelength of the visible emission is much longer than predicted by the Bohr relation and the 19 V interval.

Later that year, Nick Holonyak, Jr. demonstrated the first semiconductor laser with a visible emission.

It's just water vapor; the E.P.A. strictly regulates visible emissions.

All of the installations to date and those in progress have been very effective in the elimination of visible emissions from power station chimneys.

I've been looking into that increase in IR and visible emission," Zak told her once she had settled in. "

Blast Furnace Visible Emissions 1.

• Dofasco continues to monitor and submit an annual Visible Emission Reduction Plan.

Blast Furnace Visible Emissions a) Study / experiment with flame system.

US EPA-certified wood stoves are legal, but it is required that they burn with no visible emissions after the first 20 minutes.

• Steelmaking spent $3 million this past year to significantly reduce visible emissions from KOBM operations.

Photosphere-(n) The hot, opaque, convectively stable plasma layer of a star beginning at the photopause, responsible for most thermal and visible emissions.