Cellulitis is a bacterial infection of the skin. Bacteria get into the skin through a cut, scrape, or other wound. Cellulitis can also affect the deeper layers of connective tissue beneath your skin and, in severe cases, spread to your lymph nodes.
Wire Rope Strength Design Factors. The rope strength design factor is the ratio of the rated strength of the rope to its operating stress. If a particular rope has a rated strength of 100,000 lbs. and is working under an operating stress of 20,000 lbs., it has a rope strength design factor of 5. It is operating at one-fifth or 20% of its rated strength.
Some rope is still made from natural fibres, such as coir and sisal, despite the dominance of synthetic fibres such as nylon and polypropylene, which have become increasingly popular since the 1950s. 1  A ropemaker at work, c. 1425. 2  A German ropemaker, around 1470 AD. 3  Public demonstration of historical ropemaking technique.