The plasma protection is designed to increase the adhesion of the coating and therefore its resistance over time. fter a while
Plasma treatment is a versatile and powerful technique: by producing high frequency electric discharges, plasma generates'ionised'gas that can change the surface properties of the material it is in contact with.
Bugnicourt says the consortium looked at plasma treatments as they can either'hydrophobise'(waterproof) wood surfaces
or make them more compatible with waterborne coatings. She says the plasma pre-treatment could add five to seven years life to the wood. lasma is an innovative technology with many applications,
and is something that we will hear more from over time, Bugnicourt says. t has many qualities,
and know-how regarding how plasma adds to wood protection, she adds. The European wood processing industry which includes forest workers
The design builds on existing technology and creates a magnetic field within a closed space to hold plasma in place long enough for fusion to occur allowing the hot plasma to react and burn.
The reactor itself would be largely self-sustaining meaning it would continuously heat the plasma to maintain thermonuclear conditions.
The new design is known as a spheromak meaning it generates the majority of magnetic fields by driving electrical currents into the plasma itself.
The researchers have tested successfully the prototype s ability to sustain a plasma efficiently and as they further develop
and expand the size of the device they can ramp up to higher-temperature plasma and get significant fusion power output.
The sun consists of hot plasma made of electrons and ions. Magnetic field lines extend from the solar surface all the way into the corona.
but are rooted in the photosphere s turbulent plasma whose behavior is described in terms of fluid dynamics the science of the movement of fluids and gases.
However calculations based solely on plasma turbulence were also unable to reproduce the occurrence of solar flares in full.
Using a supercomputer the team was able to show that the model consistently generated correct results even when changing details such as the number of flux tubes or the energy of the plasma.
The mechanism takes into account the#shear#effect of mass movement of the ionised gas known as plasma
I. Kim is affiliated also with the Neuroscience Program the Institute for Genomic Biology the Beckman Institute and the departments of bioengineering of materials science and engineering and of nuclear plasma and radiological engineering at the U. of I d
plasma-based unit to generate sodium cyanide at the mine itself. This technology eliminates the need to transport,
when the charged plasma cooled into neutral atoms, that those photons could fly freely. Today they make up the CMB,
and neutral atoms of hydrogen and helium were beginning to form from the seething mass of charged plasma.
#Floating, Touchable'Fairy Lights'Unveiled A team of researchers from Japan has found a way to use a high-speed laser to create a touchable plasma display in mid-air.
Nagoya Institute of technology and the University of Tokyo believe their laser-induced plasma, which they've dubbed"Fairy Lights,
Laser-induced plasma can also be controlled precisely. The researchers behind the project believe the technology has several applications,
thanks to tiny etchings made with oxygen plasma. Because of these slight differences, the stem cells developed into different types of cardiac tissue cells
An unexpected pattern has been glimpsed in the solar wind the turbulent plasma of charged particles that streams from the sun. It offers clues for handling plasmas that roil inside nuclear fusion reactors On earth.
These create energy in the same way as the sun by fusing a superheated plasma of hydrogen nuclei to form helium.
Though less dense and cooler than the hydrogen of a fusion reactor the wind is a plasma
By adding the fractal behaviour to their plasma models fusion scientists may be able to control turbulence
which can cause plasma to escape the magnetic field containing it in the reactor. They may also be able to use turbulence to disrupt high energy plasma blobs that can rip holes in the reactor.
These results look very promising says Todd Evans of nuclear energy firm General Atomics in San diego California.
#Earth raises a plasma shield to battle solar storms Earth can raise shields to protect itself against solar storms.
For the first time satellites and ground-based detectors have watched as the planet sends out a tendril of plasma to fight off blasts of charged solar matter.
and the resulting plasma becomes trapped by magnetic fields in a doughnut-shaped ring around the planet.
Theory had suggested that an extra-strong electric field from the sun can rip plasma away from the plasmasphere during reconnection triggering a plume.
and saw a tendril of increased electron density curling away from the north pole indicating that a plume of plasma was veering off towards the sun. At the same time three of NASA's THEMIS spacecraft
For the first time we were able to monitor the entire cycle of this plasma stretching from the atmosphere to the boundary between Earth's magnetic field
Not every solar storm generates a plasma plume which means ground-based observations will continue to be vital for understanding the phenomenon.
These are bright regions where hot plasma wells up surrounded by darker boundaries where it cools
Our solar system has a tail reminiscent of a four-leaf clover according to new observations of the plasma bubble that shields the solar system from the rest of the galaxy.
At the same time a stream of particles blowing out from the sun the solar wind inflates a bubble of plasma around the solar system called the heliosphere Astronomers have assumed long that the sun's motion through the galaxy squashes
Then they expose the array to a plasma rich in carbon. The nanotubes grow up under the catalyst particles
a plasma then etches the material away according to the pattern. The recipe is the gases power pressure level time
When associate professor Qi Hua Fan of the electrical engineering and computer science department set out to make a less expensive supercapacitor for storing renewable energy he developed a new plasma technology that will streamline the production of display screens.
and plasma technologies Fan was named researcher of the year for the Jerome J. Lohr College of Engineering.
Through this project Fan developed a faster way of treating the biochar particles using a new technology called plasma activation.
Treating means you use plasma to change the material surface such as creating pores Fan said.
The plasma treatment activates the biochar in five minutes and at room temperature Fan explained. Conventional chemical activation takes several hours to complete
Plasma processing is a very critical technology in modern optoelectronic materials and devices Fan explained.
The high-energy plasma can deposit highly transparent and conductive thin films create high quality semiconductors and pattern micro-or nanoscale devices thus making the display images brighter and clearer.
Fan will work with Wintek to develop a prototype plasma system. The activation method has the potential to improve production efficiency saving time and energy he noted d
Then they expose the array to a plasma rich in carbon. The nanotubes grow up under the catalyst particles
a plasma then etches the material away according to the pattern. The recipe is the gases power pressure level time
Particle size and chemical composition are determined by dynamic light scattering, analytical centrifugation, electron microscopy and inductively coupled plasma mass spectrometry (ICP-MS),
whose lab created the study's crystalline magnetic carbon nanoparticle using an electric plasma discharge inside a toulene solution.
carbon nanotube clusters architecture via chemical vapor deposition and inductively coupled plasma treatment. Lithium ion batteries based on this novel architecture demonstrate a high reversible capacity and excellent cycling stability.
A tile got hit on launch allowing reentry heat to go through one of the wings like a plasma torch!
State-run news agency Ria Novosti has said that it will carry dust monitors and plasma sensors to sense high-energy cosmic rays as well.
Initially working with Lew Meixler on a federal Cooperative Research and development Agreement in the Plasma Surface Laboratory, she solved the problem by treating the metal (steel or titanium) with a plasma.
or a wakefield (using high energy unchesof electrons to blast a tunnel through plasma; when the tunnel collapses back on itself,
RF accelerators can reach energies of a few tens of mega electron volts before the RF energy itself begins to destabilize the mechanism in what called plasma breakdown.
In wakefield approaches, balancing the skittish plasma bubble requires terawatt or petawatt lasers, tricky micromachinging,
the frequency is high enough that the plasma breakdown threshold for surface electric fields increases The terahertz approach also allows them to use readily available picoseconds lasers.
or another carbon-containing gas and superheated into a glowing plasma ball. That creates particles that crystallize into diamonds,
Surprisingly, the researchers found that the metabolic activity of the bone marrow of patients with MGUS was significantly different to plasma from healthy volunteers,
as well as plasma from cancer patients. The latter served for the preliminary study of the predictive power of the integrins identified, that is,
whether analysis of the exosome integrins alone will make it possible to know in which organs there could be metastasis."Our work suggests that a high level of certain integrins in the plasma of patients with breast cancer
The behavior of this plasma, and the process by which it cooled to form matter as we know it,
The pockets of plasma born of these collisions are much smaller than those created by heavier atoms,
not because the plasma itself will ever be long-lived enough to be useful, but because the data gathered as it winks in
#High-tech comb uses plasma to kill lice As some parents will already know, head lice infestations can be very difficult to treat.
in the form of a comb that zaps the pests with cold plasma. Already in use in some German pediatric clinics, the comb has conductive teeth that serve as electrodes.
generating plasma. Exposure to that plasma kills both adult lice and their eggs, which are known as nits.
Because the pulses are very short, however, the plasma is no warmer than room temperature. Therefore
there's no danger of burns or singeing to the patient. Just one treatment reportedly kills half of the lice and nits immediately,
in plasma isolated from blood. By measuring the level of genetic mutations in the ctdna, the test can predict the nature of metastatic disease
Nanoparticles were fabricated in the Australian National University by e-beam lithography followed by plasma-phase etching.
plasma-based ion engines meaning it packs a Punch in January, Accion tested a miniature version of MAX-1,
Then the team exposed the graphene to an oxygen plasma that knocked carbon atoms out of the graphene's nanoscale chicken wire lattice to create pores.
The longer the graphene membrane was exposed to the plasma, the bigger the pores that formed,
So far, the oxygen plasma approach worked the best, "he added. He worries more about gremlins that plague today's reverse osmosis membranes--growths on membrane surfaces that clog them (called"biofouling)
a high-frequency microwave oscillator developed in collaboration with Richard Temkin of MIT Department of physics and Plasma Science and Fusion Center.
which allows plasma components including brain-reactive autoantibodies into the brain. There, the autoantibodies can bind to neurons
it is safer and simpler to take it into space than a plasma or gas.
A laser-driven plasma wave accelerates and wiggles electrons, giving rise to a brilliant kev X-ray emission. his so-called betatron radiation is emitted in a collimated beam with excellent spatial coherence and remarkable spectral stability.
First, the laser pulse ploughs through a plasma consisting of positively charged atomic cores and their electrons like a ship through water, producing a wake of oscillating electrons.
creating a plasma shield in between the explosion and the vehicle. The plasma's temperature and density help deflect
and absorb the shockwaves from the explosion. In the patent illustration, the force field protects a military HMMWV,
while heavier-armored tanks and MRAPS could save their plasma blasts for only larger threats.
#Whoa, researchers have levitated liquid droplets on glowing plasma French researchers have found a new way to levitate liquid droplets by using a stream of electricity to create a tiny cushion of plasma.
managing to float liquid droplets using plasma. More than just a cool party trick, the new technique provides some important insight into the production of plasma.
It works in a very similar way to something called the Leidenfrost effect, where liquid droplets sitting on an incredibly hot surface begin to levitate on a hot cushion of vapour.
they'd actually managed to ionise the gas into plasma.""This method is probably an easy and original way to make a plasma,
"lead researcher and physicist Cedric Poulain said in a press release. But he admits that this was far from the original reason for the experiment,
"Although they weren't expecting to generate plasma at all, what surprised the team most of all was the blue light emission,
which gave rise to the very high electric field necessary to generate a long-term and dense plasma with little energy.
The next step is for the team to analyse the composition of the plasma cushion, which appears to be a superposition of two types of plasma-something that scientists known very little about."
"It's very exciting, "said Poulain of the research's unexpected turn. Even though it wasn't
their results could could provide some fascinating insight into the physics of plasma and potentially lead to new,
the study is the first time low temperature plasmas (LTPS) have been applied on cells grown directly from patient tissue samples.
It is the result of a unique collaboration between the York Plasma Institute in the Department of physics and the Cancer Research Unit (CRU) in York Department of biology.
Low temperature plasmas are formed by applying a high electric field across a gas using an electrode, which breaks down the gas to form plasma.
This creates a complex, unique reactive environment containing high concentrations of reactive oxygen and nitrogen species (RONS).
when transferred through plasma to a target source, is a key mediator of oxidative damage and cell death in biological systems.
a Phd student at the York Plasma Institute who has been working with Dr Fiona Frame on the project,
monitoring the precision of plasma application. If all subsequent trials are successful, LTP could be used to treat cancer patients within 10-15 years 1
Initially working with Lew Meixler on a federal Cooperative Research and development Agreement in the Plasma Surface Laboratory, she solved the problem by treating the metal (steel or titanium) with a plasma.
"Our findings indicate that a subset of genes involved with elevated plasma lipid levels and inflammation may also increase the risk for developing AD.
Elevated levels of plasma lipids and inflammation can be modified with treatment, which means it could be possible to identify
Plasma synthesis, which consumes large amounts of energy and involves significant material wastage, is used another generally method.
They have exploited the underlying physics to reduce the necessary laser power for plasma generation. Researchers at the University of Rochester's Institute of Optics have shown that a laser-generated microplasma in air can be used as a source of broadband terahertz radiation.
Ph d. student and lead author Buccheri explains that they exploited the underlying physics to reduce the necessary laser power for plasma generation.
For this, a plasma is needed. Buccheri explains that spectroscopy works by looking at which frequencies are absorbed by certain materials.
"Until now, approaches to use a plasma as a broadband source of terahertz have used commonly an elongated plasma generated by combining together two laser beams of different frequencies, i e.,
The"one-color"approach uses single laser frequency to generate the plasma. Pioneered by Harald Hamster and colleagues in 1993,
if by creating a plasma with a laser in one of these"weirder"polarization states
The trick was to replace elongated plasmas, with lengths ranging from few millimeters to several centimeters, with a microplasma, about the width of a human hair.
plasma levels and higher levels of Id1 in myeloid peripheral blood cells. Targeting Id1 might provide a three-pronged therapeutic approach,
In order to detect HIV-1 in recently infected individuals the researchers developed an assay that can detect the presence of the virus in whole blood or plasma.
or plasma where they bind to the virus creating aggregates of antibody and viral lysate.
the researchers found they could ionize the gas into a plasma that glowed a soft blue light."
"This method is probably an easy and original way to make a plasma, "said Cedric Poulain, a physicist at The french Alternative energies and Atomic energy commission.
Poulain speculates that the deformability of a liquid drop would let the researchers rig up a device to move the plasma along a surface,
what gives rise to the very high electric field necessary to generate a long-term and dense plasma with little energy.
Arraythe researchers next plan to analyze the composition of the plasma layer. They say it appears to be a superposition of two types of plasma that is not well understood.
They will also study the fast dynamics at the bottom of the drop just as the sparks begin to fly,
which should yield additional insights into the plasma. Although plasma dynamics may seem far removed from the problem of film boiling in nuclear reactors,
Poulain is happy about the path the curiosity-driven research has taken the team.""It's very exciting,
"he said of the team's foray into plasma levitation n
#Paving the way for a faster quantum computer Since its conception, quantum mechanics has defied our natural way of thinking,
Plasma accelerator technology, which is also at an experimental stage right now, promises to produce even higher accelerations,
In the future, these infections will be prevented thanks to a new plasma implant coating that kills pathogens using silver ions.
in addition to combining it with a hydrophilic plasma polymer coating, which attracts moisture, "says Dr. Ingo Grunwald,
Researchers have integrated silver nanoparticles into the thin plasma polymer coating, which is up to just 100 nanometers thick.
with two plasma polymer layers surrounding a center layer of silver. Within this structure a biocide reservoir is formed
This allows the silver ions to penetrate the outermost plasma polymer layer over a set period of time deemed necessary to properly integrate the implant.
The test samples were coated using a plasma polymerization facility at the IFAM in Bremen. Researchers confirmed the mechanical stability
A demonstration unit of the plasma polymer coating is currently available. Researchers will be presenting a dental implant featuring the Dentaplas coating at the MEDICA trade fair in Düsseldorf from November 16-19 at the joint Fraunhofer booth t
Finally, the structures are treated with oxygen plasma to remove graphene. Scanning electron micrographs of the structures reveal extremely small nanogaps between the gold layers.
Raman spectroscopic measurements of the gold nanostructures reveal that small amounts of graphene still remain between the gold layers after being treated with oxygen plasma.
and lattice vibrations in a crystal of lithium niobate and to observe how a laser focused onto a glass plate creates a hot, rapidly expanding plume of plasma.
The blood samples would be spun on a simple mechanical device resembling an eggbeater to separate the plasma from the blood cells.
The plasma would then be placed into a test tube or other container with a pellet containing the modified E coli.
Once mixed with the plasma, the E coli would multiply, producing the color corresponding to the level of zinc in the blood plasma.
when the plasma sample is added, though we are hoping to accelerate that, said Styczynski. The testing wouldn be done to identify individuals in need of treatment,
The challenge is to contain the hot plasma and keep it stable; the fusion reactors of today,
California, said in early August that it has succeeded in keeping a high-energy plasma stable for five millisecondsuch less than the blink of an eye,
that fires two clouds of plasma at each other to form a ring of plasma. The magnetic field that holds the ring together is generated by the plasma itself technique known as a field-reversed configuration.
The plasma is sustained by the injection of high-energy particles from accelerators. The challenge for Tri Alpha design, says Binderbauer,
is ot enough and long enough? keeping the plasma stable at a high-enough temperature to achieve energy-positive fusion.
The recent experiment indicated that the companyhich has attracted millions of dollars in funding from investors including Goldman sachs and Vulcan Inc,
Making the plasma hot enough is the next key challenge. Next year, Tri Alpha will begin building a new
At MIT Plasma Science and Fusion Center, a group headed by Dennis Whyte a professor of nuclear science and engineering and the center director, published a conceptual design in July for a machine called the ARC reactor (ffordable, robust, compact.
The novelty of the ARC design is the nature of the electromagnets that confine the plasma.
The researchers also envision a liquid lanketsurrounding the plasma that will absorb neutrons without damage
Increasing the amplitude of the surrounding magnetic field raises the amount of fusion power produced in the plasma to the fourth power dramatic increase that could lead to a commercial prototype in a matter of years,
Jonathan Menard, a plasma physicist at the Princeton Plasma physics Laboratory, directs the National Spherical Torus Experiment,
These sparks knock atoms out of the material resulting in a plasma that emits multicolored light.
The plasma light is split into two beam channels and broken down into several wavebands like the colors of a rainbow
This reveals the nature and concentration of particles suspended in the plasma from which it is possible to derive information on the composition of the steel sample.
so that the instrument can distinguish between light emitted by te plasma and that emitted by the sparks.
We used magnetic beads of 3 micrometers in diameter to pull down the exosomes in plasma samples Zeng said.
In order to avoid other interfering species present in plasma the bead surface was modified chemically with an antibody that recognizes
The plasma containing magnetic beads then flows through the microchannels on the diagnostic chip in which the beads can be collected readily using a magnet to extract circulating exosomes from the plasma.
Beyond lung cancer Zeng said the lab-on-a-chip could be used to detect a range of potentially deadly forms of cancer.
Plasma levels of antibodies to Clpb and melanotropin were higher in these patients. Furthermore their immunological response determined the development of eating disorders in the direction of anorexia or bulimia.
Most research efforts use a method that tries to contain hot plasma within magnetic fields in a doughnut-shaped device called a tokamak.
This approach tries to contain plasma by reflecting particles from high-density magnetic fields to low-density ones.
The small team developing the reactor at the company s skunkworks in Palmdale California has done 200 firings with plasma Mcguire said
However he said of the plasma it looks like it s doing what it s supposed to do.
Helion Energy of Redmond Washington which is developing a system that attempts to use a combination of compression and magnetic confinement of plasma;
and Lawrenceville Plasma physics in Middlesex New jersey which is working on a reactor design that uses what s known as a dense plasma focus.
Another startup General Fusion based in Vancouver British columbia tries to control plasma using pistons to compress a swirling mass of molten lead
Oxygen plasma etches out the polymer leaving behind a lattice of hollow ceramic tubes. Greer s lab showed that by changing the thickness of the tube walls it s possible to control how the material fails.
Daniel Feuermann and Jeffrey Gordon) that reconstitutes the immense brightness within the plasma of high-power xenon discharge lamps at a remote reactor,
The voxels are light emitted by plasma that created when the laser focused energy ionizes the air.
Ochiai says the most surprising thing he realized was that plasma was actually safe to touch in this application,
and these pulses ionise the air to create plasma which can be touched (pictured) The breakthrough was made by Japanese researchers from the University of Tokyo, University of Tsukuba, Utsunomiya University Nagoya Institute of technology.
Researchers and companies have used this technology to create plasma displays in the past but these involved lasers that pulse with bursts that last for nanoseconds, for example.
To solve this problem the Japanese researchers created plasma voxels using femtosecond lasers instead. A femtosecond is a quadrillionth of a second
since plasma induced by a femtosecond laser is safer than that generated by a nanosecond laser.'
and dsync+(TITECH/Georgia Tech) Near real-time plasma disruption detection using ADIOS (Princeton Plasma Research Lab/ORNL) Automated microscopy image analysis for cancer detection,
It was possible thanks to the use of plasma. In the Aerial Burton once noted that they created a device is absolutely safe for humans,
including those in contact with the plasma. Possibility to work with such displays provide lasers,
and in the process of ionization towards the plasma a air begins to emit light. To achieve this effect allowed the femtosecond laser pulse
< Back - Next >
Overtext Web Module V3.0 Alpha
Copyright Semantic-Knowledge, 1994-2011