Renal agenesis. Renal agenesis is a medical condition in which one (unilateral) or both (bilateral) fetal kidneys fail to develop.
Polycrystalline cells are composed of multiple silicon crystals, which is a cheaper way to manufacture solar modules. Put simply, these cells are easier for a factory to produce, so they are less expensive. Polycrystalline cells are made by several methods, but most commonly with a cast of molten silicon.
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.