Electric discharge effect

Electric discharge methods are known [31] to be very effective for nonactive polymer substrates such as polystyrene, polyethylene, polypropylene, etc. They are successfully used for cellulose-fiber modification to decrease the melt viscosity of cellulose-polyethylene composites [32] and to improve the mechanical properties of cellulose-polypropylene composites [28]. 

An allotrope of oxygen, ozone, 03 (8), is formed in the stratosphere by the effect of solar radiation on 02 molecules. Its total abundance in the atmosphere is equivalent to a layer that, at the ordinary conditions of 25°C and 1 bar, would cover the Earth to a thickness of only 3 mm, yet its presence in the stratosphere is vital to the maintenance of life on Earth (see Box 13.3). Ozone can be made in the laboratory by passing an electric discharge through oxygen. It is a blue gas that... 

The main factors governing hydrogen embrittlement are the metal surface films that can restrict hydrogen absorption, the effect of electrical discharge machining that may... 

Instability of electrical discharges and matrix effects lead to only moderate precision. 

The leaves of a plantlike object open and close in correspondence with the position of the sun - a process that is familiar to everyone from floral behavior. Photovoltaic foils on the surfaces of both arms generate the energy for their movement as well as for a further effect an electric discharge occurs between them at regular intervals - a periodic visualization of the solar energy circulating through the object. 

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