Secondary Waves Defined. Secondary waves, or S-waves, are seismic waves produced by an earthquake. As one side of a fault slips past the other, the pressure that had been stored is released and travels radially away from the focus of the earthquake.
Non-Absorbable sutures include :- Polypropylene sutures, Nylon (poylamide), Polyester, PVDF, silk and stainless steel sutures. Monofilament and Multifilament Sutures. Sutures can also be divided into two types on the basis of material structure i.e. monofilament sutures and multifilament or braided sutures. Braided sutures provide better knot security whereas monofilament sutures provide better passage through tissues.
Polypropylene overview Transcript. Polypropylene or PP is a thermoplastic material that is mainly sold in resin pellets to processors who then shape it into a wide variety of products including car bumpers, oil containment booms and medicine caps.olypropylene overview Transcript. Polypropylene or PP is a thermoplastic material that is mainly sold in resin pellets to processors who then shape it into a wide variety of products including car bumpers, oil containment booms and medicine caps.