CHAPELS AND ALTARS OF THE PAPAL APOSTOLIC AND PRINCIPAL CATHEDRALS OF THE CATHOLIC PILGRIMAGE IN THE VATICAN




Effect of Plasma on Polyethylene by Positron Lifetime Spectroscopy

Hypothesis: The use of plasma is widely used as a method to change polymer surfaces.The use of atmospheric cold veuve ambal rose plasma has more advantages than other plasma, laser and X-ray methods.This method is simple and it uses inexpensive equipment.Considering the many uses of polyethylene in industry, it can be effective to investigate its c

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