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Topic: Plasma


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In the News (Mon 22 Oct 18)

  
  Plasma (physics) - Wikipedia, the free encyclopedia
In physics and chemistry, a plasma is typically an ionized gas, and is usually considered to be a distinct phase of matter.
The dynamics of plasmas interacting with external and self-generated magnetic fields are studied in the academic discipline of magnetohydrodynamics.
For many purposes the electric field in a plasma may be treated as zero, although when current flows the voltage drop, though small, is finite, and density gradients are usually associated with an electric field according to the Boltzmann relation.
en.wikipedia.org /wiki/Plasma_physics   (2639 words)

  
 Plasma Science Report, 1995 (Contents and Overview)
The plasma medium is inherently nonlinear because the charged particles composing the plasma interact collectively with the electromagnetic fields produced self-consistently by the charge density and currents associated with the plasma particles.
A similar phenomenon occurs in space plasmas, where a plasma sheath separates a satellite from the surrounding space plasma, and the properties of this sheath determine the interaction of the plasma particles with the satellite.
Examples of applications of nonneutral plasmas are electron beams and plasmas for the generation of electromagnetic waves, pure ion plasmas in traps for atomic clock applications, advanced concepts for particle accelerators, and the confinement of antimatter such as positrons and antiprotons.
www.nap.edu /readingroom/books/plasma/contents.html   (8807 words)

  
 Blood Bank of the Redwoods   (Site not responding. Last check: 2007-10-21)
Plasma is the liquid part of your blood that carries your platelets, red cells and white cells through your body.
Plasma supports the recovery of hundreds of patients suffering with liver disease, severe burns, hemophilia, and leukemia.
Plasma products can be frozen in an ultra-cold freezer for up to one year after donation to preserve the valuable clotting factors.
www.bbr.org /plasma.html   (451 words)

  
 Plasma   (Site not responding. Last check: 2007-10-21)
Airlifted to a trauma center after her car was struck head-on, plasma transfusions helped her through several surgeries to reconstruct a shattered hip.
Plasma is the clear yellowish fluid portion of the blood that transports water and nutrients to all the cells in the body.
Blood is composed of plasma, red blood cells, white blood cells and platelets.
www.bloodct.org /Plasma.htm   (661 words)

  
 Plasma Properties
Plasma is overwhemingly the dominant constituent of the universe as a whole.
Plasma in the stars and in the tenuous space between them make up over 99% of the visible universe and perhaps most of that which is not visible.
Plasma is defined as an assemblage of charged particles called electrons and ions that react collectively to forces exerted by electric and magnetic fields.
public.lanl.gov /alp/plasma/ubiquitous.html   (1532 words)

  
 SPACE.com -- Advanced Rocketry: NASA Works On Powerful Plasma Rockets
Plasma, known as the fourth state of matter, is electrically charged gas made up of atoms stripped of electrons.
Plasma typically occurs in environments of high pressure and temperature, such as stars.
Another key feature of the plasma engine is its ability to throttle, which allows it to increase or decrease in thrust when needed to enter or escape a planets gravity.
www.space.com /businesstechnology/technology/plasma_propulsion_000616.html   (825 words)

  
 The Vision: Plasma for KDE
Plasma will deliver new looks for most traditional panel elements, an extensions system designed for beautiful results and graphic treatments that will firmly cement it as the desktop by which others are measured.
Looks aside, Plasma must offer the average KDE user efficient and ergonomic access to their desktop first and foremost.
The Plasma team is spending a lot of time thinking and working on these new desktop components.
plasma.kde.org /cms/1029   (1030 words)

  
 American Red Cross
The plasma component serves a variety of functions, from maintaining blood pressure to supplying critical proteins for blood clotting and immunity.
Plasma transfusion is most often used to control bleeding due to low levels of some clotting factors.
Because plasma is quickly replenished by your body, you can donate plasma as frequently as every 48 hours, but no more than 12 times a year.
www.redcross.org /services/biomed/0,1082,0_20_,00.html   (369 words)

  
 Plasma Laboratory at Weizmann Institute of Science
Implication of the development of plasma switches, intense X-ray sources, generation of electron and ion beams, and industrial applications based on plasma-surface interaction are studied.
The use of the hot and dense plasmas for X-ray lasers and the use of intense X-ray sources for high-resolution microscopy of living biological cells are considered as well.
The diagnostic methods are based on fast high-resolution plasma spectroscopy of spontaneous emission in the region from visible to X-rays and spectroscopy of laser absorption and laser-stimulated emission.
plasma-gate.weizmann.ac.il   (259 words)

  
 The Plasma Universe   (Site not responding. Last check: 2007-10-21)
Plasmas, the "4th state of matter", (no, we are not talking about blood), are the dominant form of matter in the universe.
A plasma can be described as a collection of ionized particles, which interact collectively by long-range electromagnetic forces associated with their charges and motion.
At Los Alamos, we study plasmas of all kinds, and seek to harness them for controlled thermonuclear energy production, for use in the processing of materials, for environmental restoration and decontamination, to understand the physics of high energy density states of matter, and in various astrophysical contexts.
plasma.lanl.gov   (411 words)

  
 Plasma Cleaner for Electron Microscopy - SPI Supplies
The SPI Plasma Prep™ Plasma Cleaner is a compact "bench top" sized plasma cleaner, that uses the "dry plasma process" for the removal of contamination on the TEM specimen holder, the sample itself, and also the part of the rod assembly for side entry goniometer stages actually seeing the high vacuum.
Generally speaking, a plasma etcher is a unit that operates at 100 watts or higher but a plasma cleaner operates at power levels perhaps as low as 10 watts, but not more than about 50 watts.
Plasma cleaning, using a far lower power and is designed literally to "tickle" the top surface of anything is sees, so for the purpose of removing thin adsorbed layers of contamination on a TEM foil sample for example, or on the sample holder itself, a low power plasma cleaner will do the job just fine.
www.2spi.com /catalog/instruments/plasma-cleaner.shtml   (770 words)

  
 Plasma - Wikipedia, the free encyclopedia
Look up plasma in Wiktionary, the free dictionary.
Plasma (KDE), a reimplentation and redesign of the KDE free desktop environment for Linux
This is a disambiguation page: a list of articles associated with the same title.
en.wikipedia.org /wiki/Plasma   (118 words)

  
 Plasma [Oulu]   (Site not responding. Last check: 2007-10-21)
In a weakly ionized plasma the charge-neutral interactions are still important, while in strongly ionized plasma the multiple Coulomb interactions are dominant.
A plasma is a conductor of electricity, but a volume with dimensions greater than the so-called Debye length exhibits electrically neutral behavior.
On the Earth, plasmas usually do not occur naturally except in the form of lightning bolts, which consist of narrow paths of air molecules of which approximately 20 percent are ionized, and in parts of flames.
www.oulu.fi /~spaceweb/textbook/plasma.html   (407 words)

  
 Plasma Tv Review at Plasma Television Review: Plasma Review, Plasma Television Review, Review Plasma Tv, Plasma Screen ...   (Site not responding. Last check: 2007-10-21)
Over the last five years, plasma technology has revolutionized the television market with its life-like color and stunning clarity that have set the new standard for home entertainment and office presentations.
Plasma Television Reviews strives to keep pace with renowned plasma television manufacturers such as Sony, Panasonic, Samsung, Pioneer and Philips as well as second and third tier plasma TV brands that are not as eminent like BenQ, Sampo, NEC, Viewsonic, and Luce.
Make way and get ready to enter the exciting world of plasma televisions as the big flat screen plasma TV panels are swifty settling into living rooms and conference broads all over the world.
www.plasmatelevisionreview.com   (219 words)

  
 Plasma TV Science.org: Plasma Television, Reviews and Buying Tips
The basic idea of a plasma screen is to illuminate tiny colored fluorescent lights to form an image.
Plasma is often called the "Fourth State of Matter", the other three being solid, liquid and gas.
A plasma is a distinct state of matter containing a significant number of electrically charged particles, a number sufficient to affect its electrical properties and behavior.
www.plasmatvscience.org   (311 words)

  
 Plasma Power Pure Neem Oil, Neem Cake and Neem products for pest control and health care products.
Plasma Power is one of the largest exporters of neem, karanja and soap nut products in the world.
Plasma Power harnesses the power of Neem Tree with a patented process to produce Plasma Neem Oil and Plasma Neem cake, having high azadirachtin, nimbin and salanin content.
Plasma Neem Oil, Neem Cake, Karanja Oil and Karanja Cake, are tested by HPLC to detect aflatoxin.
www.plasmaneem.com   (320 words)

  
 Plasma, Plasma, Everywhere: A new model of the plasmasphere surrounding our world   (Site not responding. Last check: 2007-10-21)
Plasma often behaves like a gas, except that it conducts electricity and is affected by magnetic fields.
The coldest magnetospheric plasma is most often found in the plasmasphere, a donut-shaped region surrounding the Earth's middle.
Plasma can cause an electric charge to accumulate on one part of a spacecraft but not another, sometimes resulting in an electric arc, or discharge.
science.nasa.gov /newhome/headlines/ast07sep99_1.htm   (1282 words)

  
 Plasma Science and Technology - Basics - What are Plasmas?
Plasma is by far the most common form of matter.
The word "PLASMA" was first applied to ionized gas by Dr. Irving Langmuir, an American chemist and physicist, in 1929.
Plasma consists of a collection of free moving electrons and ions - atoms that have lost electrons.
www.plasmas.org /what-are-plasmas.htm   (281 words)

  
 Chem4Kids.com: Matter: Plasmas
Plasmas are a lot like gases, but the atoms are different because they are made up of free electrons and ions of the element.
The plasma glows a special color depending on what kind of gas is inside.
They are still both forms of plasma, even with different physical characteristics.
www.chem4kids.com /files/matter_plasma.html   (304 words)

  
 Directory of Plasma Conferences   (Site not responding. Last check: 2007-10-21)
This listing of plasma science and engineering conferences is sponsored by the Plasma Science and Applications Committee of the Institute of Electrical and Electronics Engineers.
It is intended both to inform the plasma research community of relevant professional meetings and to assist conference organizers in avoiding schedule conflicts.
See Plasma Conference Statistics for the number of conferences listed by year and continent, as well as the monthly distribution of conferences in 2004.
www.ieee.org /plasma_meetings   (230 words)

  
 Open Directory - Science: Physics: Plasma
Coalition for Plasma Science - A group of institutions, organizations, and companies joining forces to increase awareness and understanding of plasma science and its many applications and benefits for society.
Plasma and Fusion Glossary - Frequently used terms in plasmas physics and fusion energy research.
Plasma Simulation Projects - Projects on numerical plasma simulation, including HPEM code, Monte Carlo Module, and Feature Profile Model, developed at the Computational Optical and Discharge Physics Group, University of Illinois.
dmoz.org /Science/Physics/Plasma   (291 words)

  
 Coalition for Plasma Science - Index
he Coalition for Plasma Science is a group of institutions, organizations, and companies joining forces to increase awareness and understanding of plasma science and its many applications and benefits for society.
he plasmas of interest here are the electrically charged gases, or "ionized" gases, that are found in nature as well as in numerous devices.
t the present time when someone encounters the term "plasma" he or she often thinks of blood plasma; the ionized-gas type has to be explained.
www.plasmacoalition.org   (197 words)

  
 Plasma Processing   (Site not responding. Last check: 2007-10-21)
Fundamental understanding of plasma processes is now sufficient that plasma models are emerging as tools for the developing new plasma equipment and processes, as well as, the diagnosing process difficulties.
In addition, plasma diagnostics are now being implemented as process monitors, end point detectors, and process controllers to improve processing flexibility and reliability.
Studied the ion-enhance surface kinetics that are responsible for directional plasma etching using beams to simulate the fluxes which impinge on the surfaces during processing.
plasma-processing.com   (4334 words)

  
 Plasma TV Shopping Directory
This plasma TV features a wide, 16:9 aspect ratio to match the dimension of most movies and HDTV broadcasts, and it's compatible with standard-definition 480i, enhanced-definition 480p, and high-definition 720p and 1080i signals.
Daewoo's 42-inch wide-screen plasma TV is large enough and affordable enough, relatively speaking, to make it a strong contender for any style-conscious home theater enthusiast.
The DTS-42 plasma TV is an EDTV (enhanced-definition TV) with native 480p pixel resolution and display compatibility with standard-, enhanced- and full high-definition input sources (480i, 480p, 720p, 1080i), making it perfect for use with progressive-scan DVD players, personal computers, and DTV set-top receivers alike.
www.flat-screen-tv.org /Plasma-TV.htm   (328 words)

  
 Plasma on the Internet
Laboratory of Plasma Chemistry at the University of Patras
Plasma Sciences Laboratory at Fisk University, Nashville, TN
Plasma Physics and Fusion and Laboratory for Laser Energetics at the University of Rochester, NY
plasma-gate.weizmann.ac.il /PlasmaI.html   (1656 words)

  
 Plasma Etch, Plasma Cleaner, Plasma Desmear, Plasma Equipment
Plasma Etch, Inc. is the leading manufacturer of plasma units, serving the US and abroad.
Plasma Etch technology is being used, worldwide, to remove organic and inorganic contamination, increase wetability, increase bond strength, and remove residues.
The utility and flexibility of Plasma Etch technology stems from the fact that plasma can be used to modify a variety of surfaces.
www.plasmaetch.com   (245 words)

  
 aseigo: Plasma
plasma is the fourth state of matter, an excited and brilliant event.
the orange plasma lozenge represents the slick and energetic new desktop shell.
the three "gumdrops" of coloured plasma represent the fusion of kicker, desktop and superkaramba as well as the cohesion of Javascript, Python and Ruby bindings (the Orange glob is C++, of course) as well as the combination of technical excellence, artistic beauty and usability.
aseigo.blogspot.com /2005/06/plasma.html   (1170 words)

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