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• Yang, J. N.; Akbarpour, A.; Ghaemmaghami, P.
  Instantaneous Optimal Control Laws for Tall Buildings Under Seismic Excitations.
  National Science Foundation, Washington, DC., June 10, 1987, 108 p.
  Identifying Number(s): NCEER-87-0007
  Keywords: ; Seismic design; Algorithms; Buildings; Earthquake engineering; Optimal control; Open loop systems

• Yang, J. N.; Akbarpour, A.
  Practical Considerations for Structural Control: System Uncertainty, System Time Delay, and Truncation of Small Control Forces.
  National Science Foundation, Washington, DC., August 10, 1987, 159 p.
  Identifying Number(s): NCEER-87-0018
  Keywords: Sensitivity analysis; Riccati equation; Structural control; Algorithms; Graphs (Charts); Earthquake engineering; Time lag; Uncertainty; Optimal control; Control systems; Structural analysis