NEHRP Clearinghouse

displaying 1 - 4 results in total 4

  • Yang, J. N.; Long, F. X.; Wong, D.
    Optimal Control of Nonlinear Flexible Structures.
    National Science Foundation, Washington, DC., January 22, 1988, 113 p.
    Identifying Number(s): NCEER-88-0002
    Keywords: Optimal control algorithms; Elastic waves; Nonlinear flexible structures; Dynamic structure analysis; Earthquake resistant structures

  • Shoja-Taheri, J.
    Seismological Studies of Strong Motion Records.
    National Science Foundation, Washington, D.C., January 1977, 213 p.
    Identifying Number(s): UCB/EERC-77/04
    Keywords: Ground motion; Elastic waves; Earthquake engineering; Earthquakes; Earth movements; Frequency distribution; Time dependence; Seismograms; California; Statistical analysis; Seismic risk

  • Najita, K.
    An Engineering Feasibility Study of an Ionospheric Technique to Improve Tsunami Warning Systems.
    National Science Foundation, Washington, DC. Engineering and Applied Science., September 30, 1976, 210 p.
    Keywords: Ray tracing; Tsunamis; Elastic waves; Computer programs; Earthquakes; Doppler effect; Infrasonic radiation; Fortran; Warning systems; Fortran 4 programming language; Ionosphere; Ionospheric disturbance; Rayleigh waves

  • Helmberger, D. V.; Harkrider, D. G.
    Modeling Earthquakes with Generalized Ray Theory.
    Air Force Office of Scientific Research, Bolling AFB, DC, January 1978, 21 p.
    Identifying Number(s): CONTRIB-2959
    Keywords: Elastic waves; Iterations; Ray theory; Earthquakes; Faults (Geology); Numerical analysis; Cagniard deHoop technique; Wave propagation; Reprints; Seismic waves