|  |  |  |  |  | SIE has extensive experience 
    in the field of passive energy dissipation for seismic structural control. 
    This expertise has been developed through design, implementation and testing 
    of a wide range of dampers, including viscoelastic, friction, yielding metallic, 
    viscous, and shape memory alloy devices. In addition to design and analysis 
    services, SIE provides design/peer review and testing inspection services 
    for energy dissipation projects. SIE principals actively participate on major 
    committees currently developing code regulations and design guidelines for 
    energy dissipation devices, have numerous courses and seminars on energy dissipation 
    for enhanced seismic design, and have presented state-of-the-art papers at 
    national and international conferences.  SIE is experienced with 
    the products of a large number of damper manufacturers. This experience is 
    of great benefit in the developmental phase of system design, through to the 
    actual manufacturing of dampers and prototype and production testing. Among 
    these companies are: Bridgestone, Enidine, E*Sorb Systems, FIP, Fluor Daniel/Grinnell 
    Corporation, Lisega, Oiles Corporation, Pall Dynamics, Penguin Engineering, 
    Sumitomo Metal Industries, Taylor Devices, Tekton, and 3M Company.  |  |  |