The entire stress-strain curve can now be determined using nanoindentation with a flat-ended cylindrical punch and novel analysis of the resulting force-displacement data 1. Unlike pyramidal indenters ...

JA Solar and TÜV Rheinland have reported the results of a one-year energy yield test at the national outdoor yield test base for PV products in Qionghai, Hainan, China. The test aimed to study and ...