Announcement+and+Updates

= Annoucement, news and events =


 * 1st April 2011 - Thanh:** check the external search page for formulae and equations for 2 degrees-of-freedom spring mass isolator.

-- Brief summary on Active vibration control added, check Concept evaluation page.
 * Jan 27 2011 - Thanh:** I revised the customer identification and interview part and updated the PDS, check PDS document page.