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Discussion Topic 5: In recent years, millions of solar panels have been placed on roofs around the world. Discuss how safe are t

Submitted by JOHN BOSCO ALI… on

Discussion Topic 5: In recent years, millions of solar panels have
been placed on roofs around the world. Discuss how safe are they? Discuss the
hidden pollution caused by solar panels.

Effect of Surface Energy on Mechanical Behaviour of Nano Structural Elements

Submitted by M. Shaat on

Extremely small size of nano-structures such as beams, sheets and
plates, which are commonly used as components in Nanoelectromechanical Systems
(NEMS), presents a significant challenge to the researchers of nano-mechanics.
Several studies have been developed on the mechanical behavior of nano-sized
bars, tubes, sheets and plates. The results of these studies show that the
elastic modulii of such nano-structural elements depend on their size.
Unfortunately, classical elasticity lacks an intrinsic length scale and thus