4D printing provides a means to create dynamic structures for self-actuating devices fabricated by additive manufacturing techniques. Most existing 4D printing processes are only capable of one-way sh
Earthquakes in Spain from 1st August 2020 to 30th October 2020. Fields: Date (DD/MM/YYYY) Time UTC (hh:mm:ss) Latitude (signed float) Latitude Cardinal (character) Longitude (signed flo