Sentences with phrase «plasma jet»

Mirror bore coating technology is a process in which the cylinder walls are sprayed by a special plasma jet.

The ceramic coating is then applied with a plasma jet onto the bond layer.

The study suggests that the dimensions offering the greatest energy density inside the chamber will yield the longest plasma jet.

«Experimental results show that the longest plasma jet length can be obtained by adjusting the geometric factors,» said Jiaming Xiong, from the Huazhong University of Science and Technology and one of the authors.

«Novel plasma jet offshoot phenomenon explains blue atmospheric jets: Physicists identify mysterious right - angle side - jet occurring off the plasma arc in air at ambient pressure conditions.»

It requires not one but both electrodes to have a high voltage to obtain an apokamp plasma jet, which typically develops from the bending point of the discharge channel.

In their next study, the researchers will use combinations of different pulse discharge circuits and discharge energies to see how these factors impact the plasma jet length.

When plasma expands in the capillary chamber due to arc energy heating, plasma ejects from the capillary nozzle forming the plasma jet.

Did plasma jets squeezed from black holes fertilise the gas clouds that gave birth to stars?

Steve: Check our JR Minkel's recent article on plasma jets at http://www.snipurl.com/26dun-sciam1 and to see some nifty Plasma sims that Blandford used in his talk at the American Physical Society meeting, see JR's blog item at http://www.snipurl.com/26dv2-sciam2

«Getting the biggest bang out of plasma jets.»

Capillary discharge plasma jets are those that are created by a large current that passes through a low - density gas in what is called a capillary chamber.

When the researchers simulated the plasma jets, they found that the electrodes in the instrument — which are needed to create the electric field that makes the plasma — generate heat.

«Capillary plasma jets have a wide range of applications and the length of the plasma jet is an important characteristic parameter.»

Non-equilibrium atmospheric pressure plasma jets, however, are cool to the touch.

Physicists working with plasma jets, made of a stream of ionised matter, have just discovered a new phenomenon.

Astronomers using the National Science Foundation's Very Long Baseline Array (VLBA) have discovered jets of plasma blasted from the cores of distant galaxies at speeds within one - tenth of one percent of the speed of light, placing these plasma jets among the fastest objects yet seen in the Universe.

They devour whatever gases survive the supernova blowout, and in the process emit high - speed plasma jets that blast away remaining gases.

The astrophysicists used the National Science Foundation's Very Large Array (VLA) radio telescope to capture the faintest details yet seen in the plasma jets emerging from the microquasar SS 433, an object once dubbed the «enigma of the century.»

They routinely create hot plasma jets and gas bubbles that are thought to prevent the cooling of galaxies and regulate the formation of stars, which requires cold hydrogen gas as a building block.

It has been known for long that some of these massive black holes eject spectacular plasma jets at a near speed - of - light that can extend far beyond the confines of their host galaxy.

It is thought that there are magnetic fields all across the universe and they have significant impact on various cosmic phenomena including plasma jets emanating from the vicinity of supermassive black holes and evolution of baby stars.

Astronomers observe black hole producing cold, star - making fuel from hot plasma jets and bubbles.

Using high - powered pulsed lasers based on Earth to create plasma jets on space debris could cause them to slow down slightly and to then re-enter and either burn up in the atmosphere or fall into the oceans.

Not exact matches

One of his main achievements was inventing a «magnetic nozzle» that could spray the plasma particles in a high - speed jet.

Earlier research with NASA's Chandra X-ray observatory revealed that the jets from this AGN are carving out a pair of giant «radio bubbles,» huge cavities in the hot, diffuse plasma that surrounds the galaxy.

Due to mechanisms that are poorly understood, twin jets of electrically charged gas, or plasma, shoot out perpendicular to the disk.

That model assumes that relativistic jets store energy primarily in the form of hot matter (plasma) and less in the form of magnetic fields generated by shock waves at the front of the jets.

Since the researchers know the energy of the jet when it is produced, and can measure its energy coming out, they can calculate its energy loss, which provides clues to the density of the plasma and the strength of its interaction with the jet.

«We have made, by far, the most precise extraction to date of a key property of the quark - gluon plasma, which reveals the microscopic structure of this almost perfect liquid,» says Xin - Nian Wang, physicist in the Nuclear Science Division at Berkeley Lab and managing principal investigator of the JET Collaboration.

In this new work, Wang's team refined a probe that makes use of a phenomenon researchers at Berkeley Lab first theoretically outlined 20 years ago: energy loss of a high - energy particle, called a jet, inside the quark gluon plasma.

One difficulty in using a jet as an x-ray of the quark - gluon plasma is the fact that a quark - gluon plasma is a rapidly expanding ball of fire — it doesn't sit still.

The team determined one particular property of the quark - gluon plasma, called the jet transport coefficient, which characterizes the strength of interaction between the jet and the ultra-hot matter.

The approach taken by the JET Collaboration to achieve it, by combining efforts of several groups of theorists and experimentalists, shows how to make other precise measurements of properties of the quark gluon plasma in the future.»

These are spicules, and despite their abundance, scientists didn't understand how these jets of plasma form nor did they influence the heating of the outer layers of the sun's atmosphere or the solar wind.

Because this cone feeds directly into the 1000 - light - year - long, 6 - degree - wide jet seen in older images, Junor's team concludes that something is squeezing the plasma into a tight stream.

As the comet gets closer to the sun and is heated more and more, it will produce a complex and dynamic atmosphere of gas, dust, and plasma called a coma, full of outbursts and jets.

Solar physicist Bart De Pontieu of the Lockheed Martin Solar and Astrophysics Laboratory in Palo Alto, California, and his colleagues report in the 7 January issue of Science that they can trace jets of plasma, or ionized gas, rising into the corona.

No light escapes from these regions, and astrophysicists like Bergmann must instead study the traces of gas, dust, and the piercing jets of plasma that are sometimes found in their vicinity.

In blowout jets, the eruption of relatively cool plasma leads to magnetic reconnection too and this in turn drives the eruption of hot plasma, so that both hot and cold material are carried into space.

Late in that century researchers began investigating how jets of plasma might be used to carve up flesh just as industrial plasma cutters have carved up metal since the 1960s.

So these are not sort of small players, these are major parts of the energy budget of an accreting black hole and by extension, they have an important impact on their environment; and the jets associated with accreting black holes and nuclei galaxies inflate giant lobes of plasma outside the galaxy and these heat the surrounding gas, they affect the fuel supply, they stimulate star formation, they in fact stimulate galaxy formation.

Roger Blandford is the coauthor of the Blandford - Znajek Process, the leading explanation for how black holes produce jets of plasma traveling at near light speed, but what's plasma?

But there are two jets — one that goes up and one that goes down — and these are associated with the region very close to the black hole and those jets contain plasmas that are moving at relativistic speeds, that is to say, speeds close to that of light.

Even protostars — these are young stars that are just forming and making their own planetary disks and so on — they make very powerful outflows called, the same sort of jets obviously moving at slower speeds, but they are full of plasma, that is flowing out at high speed; white dwarfs, neutron stars, black holes big and small, they seem able to do this task, it really seems to be a very common phenomenon.

«Plasma flows in laboratory used to understand how beam - like jets may form in space.»

This week in Review of Scientific Instruments, from AIP Publishing, a new study examines how the dimensions of the capillary producing the plasma affect the jet's length.

The nozzle firing a jet of carbon nanotubes with helium plasma off and on.

«These jets of plasma are ejected so fast that they could traverse the length of California in just a couple of minutes,» said De Pontieu.

The project may involve the following topics: — Interaction of the solar wind with magnetised and unmagnetised planets — Space weather forecasts — Numerical (HPC) and analytical modelling of MHD wave processes and jets in solar and astrophysical plasma — MHD wave observations and solar magneto - seismology — Application of advanced data analysis to solar system science — Physics of collisionless shocks (including planetary and interplanetary shocks)-- Analysis of multi-point measurements made by space missions, e.g Cluster (ESA), THEMIS (NASA), MMS (NASA)