Predictive Maintenance (PdM), also known as condition-based maintenance, attempts to evaluate the condition of equipment by performing periodic or continuous (online) equipment condition monitoring.
Just below the epidermis lies the second layer, the dermis. The dermis, although it contains blood vessels, nerves, and hair follicles, is primarily made up of a protein called collagen.. This protein forms a network of fibers that provides a framework for the growth of cells and blood vessels.ust below the epidermis lies the second layer, the dermis. The dermis, although it contains blood vessels, nerves, and hair follicles, is primarily made up of a protein called collagen.. This protein forms a network of fibers that provides a framework for the growth of cells and blood vessels.
The dermis also contains blood and lymph vessels, hair follicles, sweat glands, and the sebaceous glands, which produce oil. Nerves in the dermis sense touch and pain. 1  Collagen: Collagen is the most abundant protein in the skin.2  Elastin: This protein is found together with collagen and is responsible for giving structure to your skin and organs. Collagen: Collagen is the most abundant protein in the skin. 2  It makes up 75% of your skin. 3  This is also your fountain of youth, responsible for warding off wrinkles and fine lines. 4  Over time, environmental factors and aging diminish your body's ability to produce collagen.