Several new methods and their characters for rock fragmentation,such as equal ion rock fragmenting, electronic beam rock fragmenting, laser rock fragmenting, microwave rock fragmenting, thermal rock fragmenting and shooting bomb rock fragmenting, are introduced in this paper.

Plasma disruption, which seems to be unavoidable in Tokamak operation, occurs very fast and uncontrolled.

Combination of non-thermal plasma and heterogeneous catalysis for removal of low concentration benzene hydrocarbons in air;

Extraction and separation of intermediates in plasma degradation of benzene;

Effects of energy injection on removal of benzene hydrocarbons in the air by discharge plasma;

Application of plasma technology to the solid waste control;

Based on purifying automotive exhaust emission in cylinder by plasma technology, the influences of plasma modified gasoline on the content of NO in automobile exhaust emission were studied through thermodynamics analysis for the reactions occuried in automobile cylinder.

In this paper, the methods in common use for the decontamination of exhaust emission from automobile are reviewed; the methods of removal of the harmful components from the exhaust gas including microwave catalysis and plasma technology are stated.