1. Epidermis: The multilayered envelope of the epidermis varies in thickness, depending on the cell size and number of cell layers, which ranges from 0.8mm on palms and soles down to 0.06mm on the eyelids. It further consists of two layers: a) Stratum corneum: It is the outermost layer of the skin and also termed as horny layer. It is approx 10mm thick when in dry conditions but swells to several times the thickness when fully hydrated. It is flexible but relatively impermeable and known as the principal
the elements are combined together to achieve a system which is more useful and more functional than any of the constituent alone. Composite materials are becoming more and more important to today’s material due to the advantages it brings to us. Some clear evidence of the advantages of composite materials is that composite materials are low in weight, resistant against corrosion, has high fatigue strength etc. Nowadays, they are widely used in the manufacturing of aircraft structures, electronic packaging