篮球滚球大小球技巧

Technology
Plasma 

Matter is composed of molecules and molecules are composed of atoms.  Atoms are composed of a positively charged nucleus and negatively charged electrons. The nucleus is surrounded by electrons. Under the influence of external energy, electrons will detach from the nucleus and become free electrons.  Then, matter will become ion paste which consists of a positively charged nucleus and negatively charged electrons.  An ion  paste with equal amount of positive and negative charges are called plasma. 
Plasma is by far the most common form of matter, the other three being solid, liquid, and gas.  Plasma in the stars and in the tenuous space between them makes up over 99% of the visible universe and perhaps most of that which is not visible.

[1] Venugopalan M,Reaction under cold plasma conditions,vol.1.New York:Wilery/Interscience;1971.
[2] Nasser E.Fundamentals of gaseous ionization and plasma electronics.New York;Wiley/Interscience;1971.
[3] Herman H.Plasma-sprayed coatings.Sci Am 1988;259(3):112-7.
[4] Mac Rae DR.Plasma arc process systems,reactors,and applications.Plasma Chem Plasma Process 1989;9(1,Suppl):85S-118S.
[5] Smith RW,Wei D,Apelian D.Thermal plasma materials processing-applications and opportunities.Plasma Chem Plasma Process 1989;9(1,Suppl):135S-65S.
[6] Leveroni E,Pfender E.A unified approach to plasma-particle heat transfer under noncontinuum and nonequilibrium conditions.Int J Heat Transfer 1990;33(7):1497-509.
[7] Chang Ch,Pfender E.Nonequilibrium modeling in lowpressure argon plasma jet.Part II:turbulent flow.Plasma Chem Plasma Process.