Sentences with phrase «hydrogen emission in»

«Astronomers detect atomic hydrogen emission in galaxies at record breaking distances.»

Not exact matches

Hydrogen fuel cells are a zero - emission technology, but the fueling infrastructure is extremely rare in the United States.

Honda established a division late last year to develop electric vehicles (EVs) as part of its long - held goal for lower - emission gasoline hybrids, plug - in hybrids, EVs and hydrogen fuel cell vehicles (FCVs) to account for two - thirds of its line - up by 2030, from about 5 percent now.

Mississauga, Ontario - headquartered Hydrogenics Corporation, a leading developer and manufacturer of hydrogen generation technology and hydrogen fuel cell systems, today announced that it has received an order valued at C$ 7.8 million to supply fuel cell power systems for zero - emission vehicles in China.

By finding places in the sky where radio telescopes pick up these 21 - centimeter emissions, astronomers can identify light from faraway, hydrogen - rich regions so ancient they date back to the era when stars were starting to form.

More accurate distances between the most common type of «planetary nebulae» and the Earth can be estimated simply with three sets of data: firstly, the size of the object on the sky taken from the latest high resolution surveys; secondly, an accurate measurement of how bright the object is in the red hydrogen - alpha emission line; and thirdly, an estimate of the dimming toward the nebula caused by so called interstellar - reddening.

The holes in the cheese represent places around stars and galaxies where UV radiation has ionized hydrogen atoms, bringing 21 - centimeter emissions to a halt.

Rampadarath explains: «Comparing the VLA images at radio wavelengths to Chandra's X-ray observations and the hydrogen - emission detected by Hubble, shows that features are not only connected, but that the radio outflows are in fact the progenitors of the structures seen by Chandra and Hubble.

The move is designed to increase the use of zero - emissions vehicles, or ZEVs: plug - in electrics, hybrid plug - ins and hydrogen fuel cell cars.

Only movie stars and select consumers have been able to get their hands on hydrogen fuel cell vehicles in the United States over the past few years, but now these zero - emissions cars are poised to bust onto the scene in a big way around 2015 to 2017.

Hydrogen can be made with no upstream emissions using renewable energy to separate hydrogen from a water molecule in a process called electHydrogen can be made with no upstream emissions using renewable energy to separate hydrogen from a water molecule in a process called electhydrogen from a water molecule in a process called electrolysis.

But he also advocates starting work on hydrogen technology because in the long run fuel - cell vehicles that use «clean» hydrogen would reduce emissions.

The group found that although fuel - cell vehicles would produce zero greenhouse - gas emissions during use, the extraction and refinement of hydrogen fuel would release three to five times as much carbon into the air as is released in procuring and refining gasoline and diesel.

Using the Very Large Array of the National Radio Astronomy Observatory in the US, the team observed radio emission from hydrogen in a distant galaxy and found that it would have contained billions of young, massive stars surrounded by clouds of hydrogen gas.

Hydrogen fuel cells may be the best option for powering zero - emission vehicles: Toyota has just introduced a hydrogen - powered car in Japan and will make them available in the United States Hydrogen fuel cells may be the best option for powering zero - emission vehicles: Toyota has just introduced a hydrogen - powered car in Japan and will make them available in the United States hydrogen - powered car in Japan and will make them available in the United States in 2015.

He chose the emission frequency of hydrogen because it is the most abundant element in the universe, and hence an obvious signal for any intelligent civilisation trying to get itself noticed by another.

When Greene began analyzing emissions from the aviation sector in the 1980s, «the consensus was there really wasn't a role for biofuels in aircraft — let alone hydrogen,» he says.

Making hydrogen fuel, however, is not emission free: today, making most hydrogen fuel involves natural gas in a process that releases CO2 into the atmosphere.

(Because Saturn's atmosphere is largely composed of hydrogen, aurora emissions are mainly in the ultraviolet band of wavelengths.)

But for one lengthy interval during the observations, the team spotted emissions from hydrogen (at a wavelength of 121.6 nanometers) in the same region.

Steffen Møller - Holst at SINTEF Energy Research believes that battery - powered vehicles will play a very important role in the emission - free transport of the future, but that this will happen in combination with hybrids, rechargeable hybrids and hydrogen - powered vehicles.

They noticed an object producing the hydrogen Lyman alpha emission line in its spectrum.

The appearance of the plumes in this graphic is based on spectroscopic observations of oxygen and hydrogen in the auroral emissions.

Roads in Finland in 2020 will hum to the sound of low - emission vehicles running on renewable energy, electricity, hydrogen and sustainable biofuels.

Hydrogen is an excellent fuel which, due to its high energetic density and zero greenhouse gas emission, is essential in a great number of industrial processes.

Doppler - shifted hydrogen Lyman - alpha (Lyα) emission from galaxies is currently measured and used in cosmology as an indicator of star formation.

When the rocket passes 60 miles, it will be above the bulk of hydrogen and water in Earth's atmosphere that block solar emissions from reaching Earth, and the instruments will begin collecting useful scientific data.

But hydrogen is commonly produced from natural gas heated by steam, which results in greenhouse gas emissions and other environmental problems.

* 3) For example, a research team led by Takuma Izumi and Kotaro Kohno at the University of Tokyo, both of whom are engaged in this research, suggests that there is enhanced emission of hydrogen cyanide (HCN) from the supermassive black hole in the barred spiral galaxy NGC1097 by past ALMA observations.

The rotational velocity is found from the 21 - cm emission of the neutral atomic hydrogen gas in the outer parts of the disk.

Synthetic fuels have one particular advantage over batteries or hydrogen as a route to low - carbon transport: by dropping in exactly where fossil fuels are used now, they can reduce emissions dramatically without the need for major new infrastructure or changes in consumer behaviour, which may be decisive in certain cases.

Over the past few years, advances in the development of software defined radio (SDR) have encouraged tinkerers to construct low - cost radio telescopes suitable for detecting emission from galactic neutral hydrogen.

Posted on 26 January 2015 in Carbon Capture and Conversion (CCC), Emissions, Hydrogen, Methanol, Power - to - Gas Permalink Comments (37)

Though it's the most abundant element in the universe by far, in our environment hydrogen hides so effectively that our methods of drawing it out as a so - called «zero - emissions» fuel have tended to be either ineffective or extremely dirty.

The bright clusters are highlighted in red by their associated emission from glowing hydrogen gas.

This Hubble composite image shows visible starlight as well as light from the emission of glowing hydrogen, which is associated with the most luminous young stars in the spiral arms.

As shown in our additional, composite image, part of the evidence for this heating process comes from the similarity in location between the hydrogen and X-ray emission, both thought to be caused by shocks, and the radio jets.

Posted on 21 January 2017 in Electric (Battery), Emissions, Fuel Cells, Hydrogen, LCFS, Policy, Regulations Permalink Comments (12)

We speculate that this truncation of the outer disk may be the signpost of a developing gap due to the effects of a growing protoplanet; the gap is still presumably evolving because material still resides in it, as indicated by the silicate emission, the molecular hydrogen emission, and by the continued accretion onto the central star (albeit at a much lower rate than typical of younger T Tauri stars).

Therefore, the research group targeted molecular line emissions from hydrogen cyanide (HCN), formyl ion (HCO +), and hydrogen sulfide (CS) at millimeter / submillimeter wavelengths (* 4) in the galaxy called NGC 1097 (about 50 million light years away) with the ALMA Telescope in the Atacama Desert in Chile.

The filters used to create this color image show oxygen in blue, hydrogen in green and a combination of sulfur and nitrogen emission in red.

Statistical arguments must be used in many cases, but the velocities of the gas, when compared with the velocities found for stars and those anticipated on the basis of the dynamics of the Galaxy, provide useful clues as to the location of the different sources of hydrogen radio emission.

Type I supernovae happen in close binary systems and do not show strong hydrogen emission lines.

The light we received from the galaxy in the distant Universe tells us - from hydrogen, oxygen, and neon emission lines - that they followed a different rule to produce the heavy elements.

Type II supernovae happen in single star systems (or at least far enough away from any companion star to retain their hydrogen outer layers) and have strong hydrogen emission lines.

Even before they first detected the emission from neutral hydrogen in 1951, astronomers were aware of interstellar gas.

In doing so, as the CMB photons traveled through this hydrogen gas, it absorbed a particular frequency — so rather than look for a specific emission, astronomers have been looking for a specific type of absorption, or a certain frequency of CMB radiation that was missing.

Massive yet non-supergiant entities known as «Be stars» are main - sequence stars that notably have, or had at some time, one or more Balmer lines in emission, with the hydrogen - related electromagnetic radiation series projected out by the stars being of particular interest.

Unlike the two slightly closer quasars that were also found in April 2001, however, the emission absorption impact of neutral hydrogen gas was detected in the spectrum of J1030 dating it to the period when the first stars and quasars formed (Fan et al, 2001; Becker et al, 2001; and Jordi Miralda - Escude, 1997).

Radio Telescope: ARROW — A robotically directed receiver tuned to radio emission from hydrogen in the Milky Way.