Sentences with phrase «from oxygen gas»

Not exact matches

They need an atmosphere to breathe, which means that the appropriate amount of oxygen and other gases have to be kept at a constant level, despite being constantly used up while carbon dioxide is constantly exhaled from breathing.

If you have an airlock set up (like what's used when brewing beer), the gases released from fermentation escapes through the airlock, but oxygen stays out.

and get blocked off from oxygen, which results in a slow break down process (anaerobic decomposition) and the release of methane, a greenhouse gas.

Gas, essential for life which is carried by the blood from the lungs to the tissues; concentrated oxygen may be given through an ambu bag, ventilator, hood, nasal CPAP or prongs.

Proper breathing allows for better gas exchange, fueling the brain with oxygen and disposing of excess carbon dioxide from the blood.

«One of the proposed scenarios,» comments Romano Corradi, director of the GTC and another of the authors «is the presence of a component in the gas which is different from that which we normally find, poor in hydrogen and rich in heavier elements such as oxygen and carbon.

The technology can be applied to upstream production of gas as well as in petrochemical plants and for medical uses to harvest oxygen from other gases.

BUGGING OUT Not only can this insectlike robot fly and swim, but it also splits water into hydrogen and oxygen gas, which the bot ignites to propel itself from the water.

The separation into two chambers means there are two separate flue gas streams to deal with too: air with a reduced concentration of oxygen is discharged from one chamber, water vapour and CO2 from the other.

The gas seems to act as an antioxidant, protecting brain cells from the toxic aftereffects of oxygen starvation that strokes can cause.

Another mystery — when oxygen made its debut as a leading gas in Earth's life support system — was pushed back from 1.2 billion years ago, the time when the earliest land - based life appears in the fossil record.

Many of us are familiar with electrolytic splitting of water from their school days: if you hold two electrodes into an aqueous electrolyte and apply a sufficient voltage, gas bubbles of hydrogen and oxygen are formed.

Although the catalyst does produce oxygen from water, it does not produce hydrogen gas (H2) that can be burnt in a fuel cell.

Not only does it come from renewable resources, but it's better than PET at sealing out gases like oxygen and carbon dioxide, which is critical for preserving foodstuffs.

Scientists are keeping a close watch on variables that might affect life in the open ocean, including depleted oxygen levels caused by a feeding frenzy from oil - and gas - eating microbes, and the unknown effects of dispersants, which break the oil into droplets but may keep it suspended in the water.

Under steady - state conditions, the consumed lattice - oxygen is continuously restored by oxygen uptake from the gas phase.

By separating out the starlight from the planet light, we can identify molecules in the planet's atmosphere and look for gases produced by life, like oxygen, ozone and ammonia.

Subject to a surface temperature of about 1,800 degrees Fahrenheit, oxygen and carbon are ripped away from the planet by lighter hydrogen gas and carried in a streaming halo behind it.

Ideally smaller - scale factories would also be able to make hydrogen peroxide on site, but this would require a completely different set of chemistry, direct synthesis of H2O2 from hydrogen and oxygen gas, which has long been poorly understood according to researchers at the University of Illinois at Urbana - Champaign.

For instance, when particles from uranium bump into water, they can create hydrogen gas, hydrogen peroxide, and oxygen.

Oil and gas result mostly from the rapid burial of dead microorganisms in environments where oxygen is so scarce that they do not decompose.

Because the gas strips oxygen from the water, subsurface hypoxia might linger longer than the gas itself.

Conventional processing methods use a high - temperature blast furnace to heat the iron ore and other compounds to remove oxygen and yield a desired alloy, a method that creates a lot of carbon dioxide, according to a report last year from U.S. EPA on greenhouse gas emissions from the iron and steel sector.

As it rose from the lunar depths, that carbon combined with oxygen to make substantial amounts carbon monoxide (CO) gas.

Scientists could not understand where the gas came from, because they thought methane was produced only in oxygen - poor environments like swamps and rice paddies, where decomposition occurs.

The plumes of oil and gas spreading from the Deepwater Horizon wellhead, which have the potential to create a low - oxygen dead zone, have attracted intense scrutiny from researchers.

What the team discovered was an odd oxygen isotope telling them that the sulfates came from gases that had undergone atmospheric reactions en route to the valley.

But such solid - oxide fuel cells (SOFCs) can efficiently combine everyday fossil - fuel natural gas with oxygen from the air — without burning — to generate electricity on a small scale.

On Earth, oxygen, ozone and methane eliminate each other rapidly and other gases are destroyed by ultraviolet radiation from the sun.

Scientists from the University of Bath's Department of Pharmacy & Pharmacology and Centre for Regenerative Medicine and from the Faculty of Pharmaceutical Sciences, University of São Paulo, Brazil, showed that ozone gas, obtained by passing electricity through oxygen, effectively sterilises one of the most common types of polymer used in medical implants.

Tests of gas levels in blood flowing to and from the replacement organs showed that they were taking in oxygen and releasing carbon dioxide at 95 % of normal efficiency.

Not only can they hide from mackerel amongst the jellies» stinger - covered tentacles when they rise from the seafloor to feed and digest at night, they can also survive for hours within the ocean floor's low - or no - oxygen muds, which are pervaded by poisonous hydrogen sulfide gas — an inhospitable place lacking any other vertebrate species.

In the first stage, the flux affects the diffusion and adsorption of oxygen from gas to the gas / oxide interface.

When the radiation from this object hit the gas cloud, it excited oxygen atoms, causing the cloud to glow green.

Eventually, Stars Aa and Ab will lose much of their current mass, from intensified stellar winds that eventually puff out their outer gas envelopes of hydrogen and helium (and lesser amounts of higher elements such as carbon and oxygen) into interstellar space as planetary nebulae.

But in December 2012, when the ice moon was at its farthest point from the gas giant, they caught a pair of plumes bearing clear signs of oxygen and hydrogen — the components of water vapor — shooting from near the southern pole.

When the star's ultraviolet radiation strikes the gases in the nebula, they heat up, giving out radiation ranging in wavelength from blue — emitted by hot oxygen in the bubble near the star — to yellow — emitted by hot hydrogen and nitrogen.

It will focus on catalyst development for four applications: proton exchange membrane fuel cells to convert stored energy in non-fossil fuels into electricity; electrolysers for splitting water into oxygen and hydrogen — a potential clean fuel cell source; syngas, a mixture of CO and H2, which is generated from coal, gas and biomass, and widely used as a key intermediate in the chemical industry; and lithium - air batteries.

From his own research in chemical oceanography, along with data from a number of recent studies, Weber points out that some negative consequences of greenhouse gas emissions and warming «are manifesting faster than previously predicted,» including ocean acidification and oxygen loss, which are expected to affect «a large fraction of marine species if current trends continue unchecked.&raFrom his own research in chemical oceanography, along with data from a number of recent studies, Weber points out that some negative consequences of greenhouse gas emissions and warming «are manifesting faster than previously predicted,» including ocean acidification and oxygen loss, which are expected to affect «a large fraction of marine species if current trends continue unchecked.&rafrom a number of recent studies, Weber points out that some negative consequences of greenhouse gas emissions and warming «are manifesting faster than previously predicted,» including ocean acidification and oxygen loss, which are expected to affect «a large fraction of marine species if current trends continue unchecked.»

Presumably, the strong stellar wind emitted by giant stars eventually blows the titanium oxide out of the star's outer regions (along with hydrogen and helium gases and dust made of elements and molecules like carbon) into interstellar space, until vigorous convection brings out more titanium and oxygen that are created from nuclear processes deeper in the star.

The various colors in the picture arise from different chemical elements in the expanding gas, including hydrogen (orange), nitrogen (red), sulfur (pink), and oxygen (green).

So, starting from the only example we have, NASA's Exoplanet Exploration program is aiming to build a telescope that will look for oxygen or other similarly odd gases in other earth - like planets atmospheres as possible signatures of life.

Earth's much thicker layer of low - level ozone, however, has a much larger contribution from the build - up of molecular oxygen beginning some 2.4 billion years ago from photosynthetic microbes excreting oxygen as a waste gas, which now along with plant life is constantly replenishing Earth's two - atom as well as three - stom ozone oxygen molecules.

Seen from space humans, trees, elephants, or even whales are undetectable and unremarkable, yet Earth would reveal its secret to an outside observer through the surprising abundance of a highly reactive gas, molecular oxygen.

The amount of oxygen in a galaxy is determined primarily by three factors: how much oxygen comes from large stars that end their lives violently in supernova explosions — a ubiquitous phenomenon in the early Universe, when the rate of stellar births was dramatically higher than the rate in the Universe today; how much of that oxygen gets ejected from the galaxy by so - called «super winds,» which propel oxygen and other interstellar gases out of galaxies at hundreds of thousands of miles per hour; and how much pristine gas enters the galaxy from the intergalactic medium, which doesn't contain much oxygen.

Moreover, the presence of carbon monoxide in the gas indicates that it came from the core of earlier generation of stars, where carbon and oxygen were created by fusion reactions.

If I'm understanding this correctly, then, much of what's doing the re-radiating is ordinary oxygen and nitrogen that have had the energy from excited CO2 (and other greenhouse gases) transferred to them by collisions.

The still slightly burning superheated exhaust gasses from too much oxygen in the AFR from incorrect carburetor settings slowly overheated his valves and they deteriorated over time until they began to even crack a bit.

This linear oxygen sensor control goes into operation immediately after the engine starts from cold, providing information about the exhaust gas constituents which the electronic control unit of the V6 uses for a controlled warm - up.

The company's primary products are atmospheric gases, which are produced from air (e.g., oxygen and nitrogen) and process gases, which are produced through additional processes (e.g., carbon dioxide, hydrogen, and acetylene).