pun4dDownload scientific diagram | Schematics of PUND method with a) continuous waveform and b) corresponding I-t curve. Schematics of c) pulse-and d) continuous-type triangular waveformsmaxwindifun4d. is 11 months 1 week old. It is a domain having extension. This website is estimated worth of $ 8.95 and have a daily ine of around $ 0.15.