Q LR (1987)34 (11) F. General 1005

Fll0. Meetings, seminars, committees 87:6625

Knox, R.A., 1987. Overview of the [U.S.] Physical Oceanography Report [to IUGG]. Revs Geophys., 25(2): 181-182.

This short overview mentions some of the key themes and results of 1982-86 progress in U.S. physical oceanography. New ideas, observations and instrumentation in such areas as smallest scales of motion, the upper ocean, coastal oceanography, the equatorial ocean, high latitude regions, and numer- ical modeling are discussed. Scripps Inst. of Oceanogr., La Jolla, CA 92093, USA.

87:6626 Staff, 1986. Development of marine sciences in Arab

universities. Meeting of experts held at the Marine Science Station, Aqaba, Jordan, 1-5 December 1985. UNESCO Repts mar. Sci., 39:19pp.

F160. Applied oceanography 87:6627

Paliou, C., M. Shinozuka and Y.N. Chen, 1987. Reliability and durability of marine structures. J. struct. Engng, Am. Soc. civ. Engrs, 113(6): 1297- 1314.

The dynamic response of offshore towers to wind- generated random ocean waves is studied using two methods of reliability analysis: a statistical fatigue damage analysis to demonstrate the influence of the design stress level for fatigue-critical members on the fatigue reliability, and a first-passage failure prob- ability with periodic inspections. For the latter, a crack growth analysis is performed using fracture mechanics to estimate propagated crack size and corresponding residual strength under random serv- ice loading conditions. Periodic inspections are very important if a fatigue crack already exists. Dept. of Civ. Engng and Engng Mech., 610 SW Mudd, Columbia Univ., New York, NY 10027, USA.

F170. Engineering and industry 87:6628

Finke, Michael, 1984. Measurements of mooring component drag coefficients. Ber. Inst. Meeresk. Christian-Albrechts-Univ., 129:96pp. (In Ger- man, English abstract.)

Tow tank experiments are described for a deter- mination of the drag coefficients of the Aanderaa

Current Meter and Aanderaa Thermistor String Recorder, Benthos Glass Ball Hardcaps in various combinations and Divinicell buoyancy elements of elliptical shape. Considerable deviations were found between drag coefficients determined from these experiments and those obtained from the assumption of idealized shape. Inst. fur Meereskunde, Dustern- brooker Weg 20, 2300 Kiel 1, FRG.

87:6629 Galvin, Cyril and C.R. Rollins, 1987. The well ring

seawall at Hollywood Shores, Maryland. Shore Beach, 55(2):33-41.

87:6630 Kaplan, Gadi (ed.), 1987. Special report: on good

design. IEEE Spectrum, 24(5):29-72; 22 papers.

'Modern day designers too often believe that a drawing is the real world,' but NASA investigators have noted that direct first-hand experience with how hardware behaves and can fail is 'of the essence' for design engineers. The papers and case studies presented here illustrate the tenets of good design in everything from circuitry to aircraft. One section is devoted to the tools for good design; there is also an interview with Apple Corporation's Don North. (fcs)

87:6631 Le Guerch, Eric, 1987. The deep towing of under-

water fish: [cable] behaviour patterns during haft-turn manoeuvres. Ocean Engng, 14(2):145- 162.

Having defined the criteria necessary for ship maneuvering under optimal conditions, a mathe- matical model for simulating cable dynamics was introduced in order to determine typical behavior patterns of half-turn maneuvers for the various immersions envisaged (from 2000 to 6000 m). IFREMER, B.P. 330, 83507 La Seyne sur Mer, France.

87:6632 Sugio, Satoru, Kinya Nakada and D.W. Urish, 1987.

Subsurface seawater intrusion barrier analysis. J. hydraul. Engng, Am. Soc. cir. Engrs, 113(6):767- 779. Div. of Civ. Engng, Miyazaki Univ., Kumano, Miyazaki 889-21, Japan.

F190. Navigation, cartography, etc.

87:6633 Jordan, S.K. and J.L. Center Jr., 1986. Establishing

requirements for gravity surveys for very accurate