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.
Typical semicrystallinethermoplasticresinsarepolyamide(PA),polypropylene(PP)orB(POM)(Table1.3).The crystallization grade of semicrystalline thermoplastic depends on the regu-larity of the chain structure, the molecular weight and the mobility of the moleculechains, which can be hindered by loop formation [6].