Sentences with phrase «photochemical reactions»

The effects of very short wavelength UV on photochemical reactions in the stratosphere leading to heating at very high altitudes is something that is under appreciated in the climate science community but the meterologists would have likely let them know when to look for these affects.

Low - level ozone is produced by a complex photochemical reaction on hot, sunny days involving gases found in vehicle exhausts.

This new algorithm was developed through a DOE Office of Science - supported Scientific Discovery through Advanced Computing (SciDAC) project focused on advancing software and algorithms for photochemical reactions.

The relatively high energy of ultraviolet light gives rise to certain photochemical reactions.

Volatile organic compounds, referred to as VOCs, are characterized as any compounds of carbon, excluding carbon monoxide, carbon dioxide, carbonic acid, metallic carbides or carbonates, and ammonium carbonate that participate in atmospheric photochemical reactions.

Themechanicallyreproducednatureofphotographicsourcematerialstandsinoppositiontothe paint - erly process: the indexical «freezing» of a dynamic scene through photochemical reaction and the mimetic translation of this through marking, layering and scraping down.

It comes from the same basic process, too — photochemical reactions in the air.

Photochemical reactions would deplete the methane in Titan's atmosphere within 15 million years, so something must be replacing the destroyed gas.

«Concentrated light drives the photochemical reaction, which generates high - energy intermediates and heat to drive thermochemical carbon - chain - forming reactions, thus producing hydrocarbons in a single - step process.»

«If there is more ultraviolet light hitting the atmosphere, it will drive these photochemical reactions more efficiently,» said Domagal - Goldman.

Felix N. Castellano, Goodnight Innovation Distinguished Chair of Chemistry at NC State, had previously shown that semiconductor nanocrystals could transfer energy to molecules, thereby extending their excited state lifetimes long enough for them to be useful in photochemical reactions.

STM enables researchers to follow and understand the photochemical reactions on various surface sites.

From this photochemical reaction, two radicals of opposite charge are formed, a highly reducing anion and a highly oxidising cation.

The photochemical reaction of volcanic sulfur dioxide may not be the only method of creating a mass independent fractionation of sulfur.

Photochemical reactions are critical to a wide range of natural and technological phenomena, including photosynthesis, vision, nanomaterials and solar energy.

By Supriya Tiwari and Madhoolika Agrawal Abstract The photochemical reactions leading to O3 formation and the variables on which these reactions depend are undergoing rapid alterations owing to the present climate change scenario.

Berkeley Lab researchers have developed a new technique called two - dimensional electronic - vibrational spectroscopy that can be used to study the interplay between electrons and atomic nuclei during a photochemical reaction.

K - Laser Class IV therapeutic lasers deliver specific red and near - infrared wavelengths of laser light to induce a photochemical reaction and therapeutic effect.

Even so, it has not been regarded as a threat to the ozone layer, because its typical lifetime in the atmosphere before it is broken down in photochemical reactions is only about five months.

There is no better «proof» of the photons of radiation for in these photochemical reactions photons become one of the reactants.

This while the photochemical reactions are different but the mechanism involved in warming their atmosphere is similar to our oxygen - ozone system.

Photochemical reactions during photosynthesis enable plants to convert solar energy into chemical energy that is stored as sugars in the plants» biomass.