Now showing items 12-17 of 17

    • A sea floor winch system for wire line re-entry of deep sea boreholes 

      Berteaux, Henri O.; Bocconcelli, Alessandro; Koelsch, Donald E.; Stephen, Ralph A. (Woods Hole Oceanographic Institution, 1990-12)
      The following report describes the scientific motivations for the use of a Sea Floor Winch System for Wireline Re-entry of Deep Sea Boreholes and presents a conceptual design for the winch system.
    • SeisCORK meeting report 

      Stephen, Ralph A.; Pettigrew, Tom; Becker, Keir; Spiess, Fred N. (Woods Hole Oceanographic Institution, 2006-02)
      The purpose of this meeting was to explore design options to simultaneously acquire borehole seismic data and hydro-geological data (pressure, temperature, fluid sampling and microbiological sampling) on a single CORK ...
    • Tests of propellers for Alvin side propulsion units 

      Sharp, Arnold G.; Sullivan, James R. (Woods Hole Oceanographic Institution, 1967-07)
      Full scale dynamometer tests were run on a series of unshrouded propellers in the range of propeller diameters considered practical for use on the side propulsion units of the research submarine ALVIN. Measurements taken ...
    • Twenty-four (24) man-hour test of Alvin's environmental system 

      Learnard, H. H.; Marquet, William M.; McCamis, Marvin J. (Woods Hole Oceanographic Institution, 1964-11)
      ALVIN's specifications call for a 48 man-hour environmental system capability. To check this, a 24 man-hour test was run as follows: Two successive test periods of six (6) hours each with a two (2) man crew inside the ...
    • User's guide for FINDIF at SACLANTCEN 

      Stephen, Ralph A. (Woods Hole Oceanographic Institution, 1992-05)
      FINDIF solves the elastic wave equation for a line source in two dimensions by the finite difference method (Virieux,1986; Stephen,1988b). The solution is carried out in the time domain for either pulse or CW sources. ...
    • A user’s manual for finite difference synthetic seismogram codes on the CYBER 205 and CRAY XMP-12 

      Hunt, Mary M.; Stephen, Ralph A. (Woods Hole Oceanographic Institution, 1986-11)
      Over the past eight years, a software package has been developed to solve the elastic wave equation by the method of finite differences (Hunt et al., 1983; Stephen, 1983; Stephen, 1984a; Stephen, 1984b; Nicoletis, 1981). ...