You should be able to download both of them using the command line program "youtube-dl"
Installation instructions are here:
https://github.com/rg3/youtube-dl/#installation
Commands to type:
Code:
youtube-dl 'http://www.mathworks.com/videos/modeling-wind-power-grid-integration-81773.html?form_seq=conf1092&elqsid=1459286432725&potential_use=Student&country_code=CA&refresh=true'
youtube-dl 'http://www.mathworks.com/videos/modeling-and-simulation-of-pv-solar-power-inverters-81813.html?form_seq=conf882'