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