Sentences with phrase «oxide gases in»

FIELD FUMES California's agricultural regions are responsible for between 20 and 51 percent of the total emissions of nitrogen oxide gases in the state, new research finds.

Not exact matches

... A number of scientific studies indicate that most global warming in recent decades is due to the great concentration of greenhouse gases (carbon dioxide, methane, nitrogen oxides and others) released mainly as a result of human activity... Doomsday predictions can no longer be met with irony or disdain.

Methane also remains in the atmosphere for 9 to 15 years; nitrous oxide remains in the atmosphere for 114 years, on average, and is 296 times more potent than CO2 — the gases released today will continue to be active in degrading the climate decades from now.

It has recently been announced that laughing gas (aka Nitrous Oxide) as a pain analgesia during labor is now available to you in some DC, Maryland, and Virginia hospitals.

The only thing that I had for my previous labors was nitrous oxide (laughing gas) and some remifentanyl (pain killer) in my IV.

That is, oxygen tends to fall out of the air as rust and other mineral oxides rather than linger as a gas, so when it exists in abundance, something — photosynthetic life, in Earth's case — must be constantly replenishing it.

The United States released 6,511 million metric tons of CO2 equivalent in 2016 when CO2, methane, nitrogen oxides and fluorinated gases are added together.

The Golden State is at the vanguard in the United States in reducing auto emissions of nitrogen oxide gases, which help produce toxic smog and acid rain.

In addition to the isotope concentration, the air bubbles trapped in the ice cores allow for measurement of the atmospheric concentrations of trace gases, including greenhouse gases carbon dioxide, methane, and nitrous oxidIn addition to the isotope concentration, the air bubbles trapped in the ice cores allow for measurement of the atmospheric concentrations of trace gases, including greenhouse gases carbon dioxide, methane, and nitrous oxidin the ice cores allow for measurement of the atmospheric concentrations of trace gases, including greenhouse gases carbon dioxide, methane, and nitrous oxide.

A single carbon nanotube about two billionths of a meter wide can compete with the best materials of today at detecting ammonia and nitrous oxide, a gas often found in automobile emissions.

Twenty years ago, they discovered that the gas nitric oxide (NO) is a major player in the complex signaling network that lets our neurons coordinate activity with one another.

TRACE amounts of laughing gas, or nitrous oxide, in Mars's atmosphere could aid the search for life on the Red Planet.

View a slide show of the world's first carbon capture and storage facility in operation The small stream of flue gas travels to the carbon - capture unit through plastic pipes reinforced with fiberglass and is cooled to between — 1 and 21 degrees Celsius from the 55 - degree C temperature at which it emerges from the other environmental technology add - ons that strip out the fly ash, sulfur dioxide and nitrogen oxides.

Many power plants already employ such ammonia in selective catalytic reduction units to strip nitrogen oxides out of the flue gas.

In a paper released for discussion in the journal Atmospheric Chemistry and Physics, Crutzen calculated that 3 to 5 percent of the nitrogen in the fertilizers used to raise crops for biofuels could end up in the atmosphere as nitrous oxide, a potent, long - lived greenhouse gaIn a paper released for discussion in the journal Atmospheric Chemistry and Physics, Crutzen calculated that 3 to 5 percent of the nitrogen in the fertilizers used to raise crops for biofuels could end up in the atmosphere as nitrous oxide, a potent, long - lived greenhouse gain the journal Atmospheric Chemistry and Physics, Crutzen calculated that 3 to 5 percent of the nitrogen in the fertilizers used to raise crops for biofuels could end up in the atmosphere as nitrous oxide, a potent, long - lived greenhouse gain the fertilizers used to raise crops for biofuels could end up in the atmosphere as nitrous oxide, a potent, long - lived greenhouse gain the atmosphere as nitrous oxide, a potent, long - lived greenhouse gas.

A group of projects that reduce emissions of nitrous oxide (N2O)-- a particularly potent greenhouse gas — from fertiliser production plants in China.

Irradiated fuel from Nuclear Electric's advanced gas cooled reactors was expected to be processed at Sellafield, in the thermal oxide reprocessing plant, which still needs government approval to begin operating.

And a Nobel - prize winning chemist has publicized his findings that biofuels made from nitrogen - thirsty plants (like corn and canola) actually produce a net increase in greenhouse gas emissions, because they release nitrous oxide during their production.

Neufeld's group recently found that the enzyme nitric oxide synthase 2 (NOS - 2), which produces toxic levels of the gas nitric oxide, is active in the eyes of rats that have their eyes» drainage channels blocked, causing an artificial form of glaucoma.

In laser deposition, researchers vaporize a polyethylene oxide with focused lasers, allowing the resulting gas to deposit on a silicon wafer.

Instead, they provide the ideal conditions for the growth of yet other bacteria that in turn produce more potent greenhouse gases, such as nitrous oxide and methane.

What happens to the ozone layer in the second half of the 21st century will largely depend on concentrations of CO2, methane and nitrous oxide — the three main long - lived greenhouse gases in the atmosphere.

By contrast, nitrous oxide, a by - product of food production, is both a powerful greenhouse gas and an ozone depleting gas, and is likely to become more important in future ozone depletion.

They rapidly detect and continuously respond to extremely small changes in the concentrations of gases including ammonia, carbon dioxide, and nitrogen oxide.

What proved possible included an extension of the Kyoto Protocol for a period of either five or seven years (excluding Canada, Japan and Russia but adding nitrogen trifluoride, used in semiconductor manufacture, to the list of gases covered — CO2, methane, nitrous oxide, sulfur hexafluoride, perfluorocarbons), a Green Climate Fund to help low - income countries cope (albeit without any actual funds yet), an Adaptation Committee to coordinate such efforts globally, rules for a global program to reduce deforestation and how to monitor such deforestation, and a Climate Technology Center that will help launch projects to reduce greenhouse gas emissions.

And as a basis for gas sensors in particular, carbon nanotubes combine advantages (and avoid shortcomings) of more established materials, such as polymer - based organic electronics and solid - state metal - oxide semiconductors.

In their approach, they discovered that germanium nanowires are grown by the reduction of germanium oxide particles and subsequent self - catalytic growth during the thermal decomposition of natural gas, and simultaneously, carbon sheath layers are uniformly coated on the nanowire surface.

Collisions between the particles and molecules in Earth's atmosphere produced nitrous oxide, a planet - warming greenhouse gas, and hydrogen cyanide, a crucial component for building DNA, the researchers propose May 23 in Nature Geoscience.

According to the U.S. Environmental Protection Agency, the process of manufacturing glass not only contributes its share of greenhouse gas emissions but also generates nitrogen oxides, sulfur dioxide and tiny particulates that can damage lung tissue when breathed in.

Treatment with inhaled nitric oxide (NO) has proven to be life saving in newborns, children and adults with several dangerous conditions, but the availability of the treatment has been limited by the size, weight and complexity of equipment needed to administer the gas and the therapy's high price.

These include methane, nitrous oxide («laughing gas»), halons, methyl bromide and chlorofluorocarbons (CFCs), which are notorious as «ozone killers» because they play a major role in ozone depletion in the polar regions.

In this nitric oxide (NO) generator, which can be incorporated into a mechanical ventilator or anesthesia machine, air is taken in through the inlet on the left and passes by the electrode at the top of the vertical segment, where a series of sparks generates NO gaIn this nitric oxide (NO) generator, which can be incorporated into a mechanical ventilator or anesthesia machine, air is taken in through the inlet on the left and passes by the electrode at the top of the vertical segment, where a series of sparks generates NO gain through the inlet on the left and passes by the electrode at the top of the vertical segment, where a series of sparks generates NO gas.

The solution Boyd hit upon was to use a system first developed in the 1960s to generate a hydrogen plasma — that is, hydrogen gas that has been electrified to separate the electrons from the protons — to remove the copper oxide at much lower temperatures.

Food production accounts for a third of all greenhouse gas emissions when one tallies those from fossil fuels used in growing, preparing and transporting food; the carbon dioxide released by clearing land for farming and pastures; the methane from rice paddies and ruminant livestock; and the nitrous oxide from fertilizer use.

In addition to trading greenhouse gases, Evolution helps broker deals for biofuels, natural gas, the uranium fuel for nuclear reactors, renewable energy credits, air pollution permits for sulfur dioxide and nitrogen oxides, even insurance against bad weather.

When they restored normal nitric oxide levels by having mice breathe in the short - lived gas — as patients have done in clinical trials — cell adhesion did not increase when oxygen levels decreased.

Among biogenic volatile organic molecules is a class of compounds called monoterpenes, which react with ozone, hydroxyl radicals, nitrogen oxides, and other gases in the atmosphere.

If only there were a way to deliver topically deliver nitric oxide, which is a gas, directly to the — ahem — area in question.

The compound, propylene oxide, exists in Sagittarius B2, a cloud of gas and dust near the center of the Milky Way.

In fact, without nitric oxide, erections would be impossible — the gas acts as a neurotransmitter, carrying the signal for an erection from nerves in the penis to muscles in the same orgaIn fact, without nitric oxide, erections would be impossible — the gas acts as a neurotransmitter, carrying the signal for an erection from nerves in the penis to muscles in the same orgain the penis to muscles in the same orgain the same organ.

(Industrial sectors such as oil and gas production don't emit ozone directly; rather, they emit compounds — such as nitrogen oxides and volatile organic compounds — that get converted to ozone in the atmosphere.)

In the mid-1980s, the company teamed up with another, Lean Burn Associates, to add a second component: a system which recirculates some exhaust gases into the air intake, which reduces emissions of oxides of nitrogen.

Nitrous oxide (N2O) is a powerful greenhouse gas and also the second largest contributor to ozone depletion in the stratosphere.

Strontium cobaltites are just one example of a class of materials known as transition metal oxides, which is considered promising for a variety of applications including electrodes in fuel cells, membranes that allow oxygen to pass through for gas separation, and electronic devices such as memristors — a form of nonvolatile, ultrafast, and energy - efficient memory device.

In this discovery, reported by Caltech researchers in June, radio telescopes picked up faint traces of the organic compound propylene oxide in a vast cloud of gas and dust called Sagittarius B2, which is near the center of our galaxIn this discovery, reported by Caltech researchers in June, radio telescopes picked up faint traces of the organic compound propylene oxide in a vast cloud of gas and dust called Sagittarius B2, which is near the center of our galaxin June, radio telescopes picked up faint traces of the organic compound propylene oxide in a vast cloud of gas and dust called Sagittarius B2, which is near the center of our galaxin a vast cloud of gas and dust called Sagittarius B2, which is near the center of our galaxy.

«There is a certain type of doping element that minimizes hydrogen's ability to penetrate, whereas other doping elements can introduce a maximum amount of electrons in the oxide, and facilitate the ejection of hydrogen gas right at the surface of the oxide,» says Mostafa.

«It is true that there are other factors (such as volcanism, the changes in the orbit and the axis of the Earth, the solar cycle), but numerous scientific studies indicate that most of the global warming in recent decades is due to the large concentration of greenhouse gases (carbon dioxide, methane, nitrogen oxide and others) mainly emitted due to human activity.»

Moreover, if the new rice supplies less carbon and other nutrients to the soil, farmers might eventually want to use more nitrogen - based fertilizers, resulting in the release of nitrous oxide, another strong greenhouse gas.

In the early 2000s, Maria's group had pioneered the single - atom approach for metals anchored on oxide supports as the exclusive active sites for the water - gas shift reaction to upgrade hydrogen streams for fuel cell use.

The novel metal oxide semiconductor (MOS) gas sensors and so - called gas - sensitive field - effect sensors, which Schütze has been developing in collaboration with partners in Sweden, Finland and Switzerland, are able to detect air contaminants such as formaldehyde, benzene or xylene at concentrations well below one in a million.