Sentences with phrase «in plasma density»

PPPL researchers have now found the disparity in plasma density in experiments conducted on the MRX.
The combined electron and ion heating altered the gradient, or spatial rate of change in the plasma density.
The motions of objects beyond the heliosphere showed that the charged gas, or plasma, that fills the space between stars should be much denser outside the border than within, and the Voyager team was at last convinced of an exit from the heliosphere thanks to a sudden increase in plasma density.

Not exact matches

Direct asymmetry measurement of temperature and density spatial distributions in inertial confinement fusion plasmas from pinhole space - resolved spectra
Generation of Superponderomotive Electrons in Multipicosecond Interactions of Kilojoule Laser Beams with Solid - Density Plasmas
Observation of a Kelvin - Helmholtz Instability in a High - Energy - Density Plasma on the Omega Laser
Measurements of turbulent mixing due to Kelvin - Helmholtz instability in high - energy - density plasmas
The modeling helps scientists deduce important pieces of information for space weather forecasting — in this case, for the first time, the density of the plasma around the shock, in addition to the speed and strength of the energized particles.
«This higher - density, cold plasma changes about every plasma physics process it comes in contact with,» Foster says.
Forest and his colleagues created plasma for the first time in the device last fall, and since then have been measuring its density, temperature and other properties.
The Cassini team will use data collected by one of the spacecraft's science instruments (the Radio and Plasma Wave Subsystem, or RPWS) to ascertain the size and density of ring particles in the gap in advance of future dives.
Oscillations in the plasma surrounding the probe seen in late 2012 and early 2013 showed that its density has been on the rise and is now about 40 times as high as it was before.
In addition, antennas tuned to the right plasma densities can be sensitive to lower radio frequencies while remaining unresponsive to the higher frequencies used by most radars.
Consequently, fusion plasmas possess large differences in temperature and density between the hot, dense center (where heating and refueling is applied) and the cooler wall area (where plasma may leak out).
The key lies not in individual reactions between neutrinos and electrons, but in the way the vast numbers of neutrinos affect wave - like fluctuations in the density of electrons in the plasma, known as «plasma waves».
Diagnostics techniques for fusion plasma research are applied to this achievement and make it possible to diagnose electron density using an interferometer, which in the past had been difficult due to influences from the atmosphere.
By being able to measure electron density with high accuracy in atmospheric pressure low - temperature plasma, it is no longer necessary to rely solely upon experience and trial and error.
We know approximately how much of certain atoms must be made in a given type of star, says Mac Low, but lab - based experiments could help nail down exact numbers under various conditions, such as changing temperatures or plasma density.
But in the case of atmospheric pressure low - density plasma, due to the influences of changes in the atmospheric pressure in a plasma as well as around the plasma, it was difficult to accurately measure electron density.
On the other hand, in magnetic field confinement fusion plasma intended for a fusion reactor, which research is being conducted at the National Institute for Fusion Science, development of high precision electron density measurements is becoming an important research topic.
Aiming for the achievement of fusion energy, research on confining a high temperature, high density plasma in a magnetic field is being conducted around the world.
In a plasma confined by the toroidal magnetic field, as the pressure rises (higher temperature and higher density) there is a tendency for the plasma to become unstable.
And at the same time as being a result that solves a fifty - year old riddle in the plasma, it also offers a guideline for maintaining high temperature and high density plasma.
As a result, we clarified that the influence of the ion mass appeared remarkably in a high - density plasma and that the detailed physical mechanism in which turbulence is suppressed through an effect caused by electron - ion collisions.
The relatively high density of plasma in the cloud prevents the formation of electromagnetic waves that would otherwise accelerate electrons to high speeds, turning them into a form of radiation.
We don't know for sure, but of the, what I call, baryonic matter, which is 5 percent of the total mass energy density of the universe, one would guess about 90 or 95 percent of it, is in the form of ionized gas called plasma.
Wurden expects his experiment to create a plasma higher in density than ITER's but lower than NIF's compressed - pellet plasma.
These promising new directions include higher fusion power densities, and hence smaller reactors; development of «transport barriers» in the plasma, leading to improved energy confinement and smaller sizes; self - driven plasma currents that permit steady - state operation and low recirculating power; and the development of advanced divertor concepts to provide particle control and heat removal over long reactor lifetimes.
Coronal holes are areas where the sun's corona appears darker because the plasma has high - speed streams open to interplanetary space, resulting in a cooler and lower - density area as compared to its surroundings.
These tiny droplets «flow» in a manner similar to the behavior of the quark - gluon plasma, a state of matter that is a mixture of the sub-atomic particles that makes up protons and neutrons and only exists at extreme temperatures and densities.
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.
Proton density after laser impact on a spherical solid density target: irradiated by an ultra-short, high intensity laser (not in picture) the intense electro - magnetic field rips electrons apart from their ions and creates a plasma.
The first is the FIELDS experiment which will examine the different fields in the corona, including the Sun's magnetic field, electric fields, waves, plasma density, electron temperature, density fluctuations and radio emissions.
In the core of the Sun, gravity compresses plasmas to densities ten times higher than that of lead.
The Department of Energy's (DOE) National Nuclear Security Administration (NNSA) and Office of Science (SC) have awarded more than $ 14 million in research awards as part of the Joint Program in High Energy Density Laboratory Plasmas (HEDLP).
This approach to fusion differs from experiments on the NSTX - U, which confines low - density plasma in magnetic fields to produce fusion reactions.
To analyze how the density gradient affected the strength of the electron turbulence, the team fed information about the plasma's temperature and density into a program run on computers at the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility at Lawrence Berkeley National Laboratory in Berkeley, California.
Recent fusion experiments on the DIII - D tokamak at General Atomics in San Diego and the Alcator C - Mod tokamak at MIT show that beaming microwaves into the center of the plasma can be used to control the density in the center of the plasma.
The planet's mass and diameter are consistent with the hypothesis that it has a low average density due to an inferred composition of three - fourths water (possibly 47 percent) and other ices (that have subliminated into a «supercritical fluid» above an «electronically conductive,» dense fluid plasma below a steamy atmosphere) and one - fourth rock and iron in the core.
The laser technique the scientists are using is new in the area of high energy density plasma and allows scientists to control the magnetic field to manipulate it in various ways.
Experiments show how heating electrons in the center of hot fusion plasma can increase turbulence, reducing the density in the inner core
The concentration of plasma TRLs reflects a balance between de novo synthesis in the liver (very low - density lipoproteins [VLDLs]-RRB-, intestinal absorption of dietary fats (chylomicrons), lipoprotein lipase — mediated (LPL - mediated) lipolysis in the peripheral circulation, and hepatic TRL clearance.
As the Ukrainian experiments have shown, with small amounts of energy, significant fusion (and fission) can occur in 10 - 8 second with a self - focused (Z - pinched) electron beam in a high - density plasma.116
«While the major CVD benefit of statins is due to reduction in plasma low density lipoprotein cholesterol (LDL - C), [2] statins also produce moderate increases, ranging from 4 % to 10 %, in levels of high density lipoprotein cholesterol (HDL - C).
Increased plasma lycopene levels have also been correlated with lower cardiovascular disease and lower cholesterol — since studies are showing that lycopene in the diet can help to increase the breakdown of low - density lipoproteins (LDL cholesterol, the kind that builds up) in the body.
Fat utilization during exercise: adaptation to a fat rich diet increases utilization of plasma fatty acids and very low density lipoproteins - triacylglycerol in humans.
Fat utilization during exercise: adaptation to a fat - rich diet increases utilization of plasma fatty acids and very low density lipoprotein - triacylglycerol in humans.
Dietary glycemic load assessed by food - frequency questionnaire in relation to plasma high - density - lipoprotein cholesterol and fasting plasma triacylglycerols in post-menopausal women
Furthermore, preliminary studies indicate that one of soy's protein fractions, 7S, may have a role in inhibiting the development of atherosclerosis by acting directly on the artery wall rather than on plasma lipids, or low - density lipoprotein cholesterol receptors.
In relation to CVD, elevated blood pressure has been shown to be positively associated with higher intakes of red and processed meat, even though the mechanism is unclear, except that possibly meat may substitute for other beneficial foods such as grains, fruits, or vegetables.32 Mean plasma total cholesterol, low - density lipoprotein cholesterol, very - low - density lipoprotein cholesterol, and triglyceride levels were found to be decreased in subjects who substituted red meat with fish.33, 34 Vegetarians have lower arachidonic, eicosapentaenoic, and docosahexaenoic acid levels and higher linoleate and antioxidant levels in platelet phospholipids; such a biochemical profile may be related to decreased atherogenesis and thrombogenesis.34 - In relation to CVD, elevated blood pressure has been shown to be positively associated with higher intakes of red and processed meat, even though the mechanism is unclear, except that possibly meat may substitute for other beneficial foods such as grains, fruits, or vegetables.32 Mean plasma total cholesterol, low - density lipoprotein cholesterol, very - low - density lipoprotein cholesterol, and triglyceride levels were found to be decreased in subjects who substituted red meat with fish.33, 34 Vegetarians have lower arachidonic, eicosapentaenoic, and docosahexaenoic acid levels and higher linoleate and antioxidant levels in platelet phospholipids; such a biochemical profile may be related to decreased atherogenesis and thrombogenesis.34 - in subjects who substituted red meat with fish.33, 34 Vegetarians have lower arachidonic, eicosapentaenoic, and docosahexaenoic acid levels and higher linoleate and antioxidant levels in platelet phospholipids; such a biochemical profile may be related to decreased atherogenesis and thrombogenesis.34 - in platelet phospholipids; such a biochemical profile may be related to decreased atherogenesis and thrombogenesis.34 - 36
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