Chemical and isotopic compositions of hydrothermal manifestations and minerals from the Broken Spur hydrothermal field

A representative collection of hydrothermal manifestations was sampled practically from all hydrothermal mounds of the Broken Spur hydrothermal vent field with use of the Mir manned submersibles during three cruises of R/V Akademik Mstislav Keldysh. Mineral associations characteristic for different morphological types of sulfide ores from hydrothermal pipes, plates, and diffusers are assessed. Particular attention is paid to distribution of minor elements and their distribution patterns determined by mineralogical zonation. Measured isotopic composition of sulfur in sulfide minerals varies from 0.4 to 5.2 per mil that indicates their similarity with ores from the Snake Pit vent field and is related to dilution of hot ore-bearing solutions by seawater and reduction of water sulfate ions to H2S with heavy isotopic composition.

Field experiences with floating breakwaters in the eastern United States /

In the past 10 years, the use of floating breakwaters as temporary coastal structures has become increasingly widespread in the United States as an inexpensive means for suppressing waves. However, as with any new technology, there have been many failures and a substantial number of imaginative, successful innovations. One of the chief problems contributing to the failure rate has been a lack of awareness by designers of reliable, up-to-date technical information. As part of a large research effort to remedy this problem, a survey was conducted on field experience with floating breakwaters in the Eastern United States. Results of the survey confirmed that state-of-the-art technical literature is not being properly disseminated. Structures built according to early design manuals were shown to have failed before the completion of their design life. Conversely, floating breakwaters built to the standards set by recent research have fared well and show promise of meeting their design golas. The weakest areas of the present technology are flotation and the anchoring systems. It is recommended that a concentrated research effort be directed toward these problem areas; it is also recommended that the monitoring of state-of-the-art projects continue. (Author).

Underground insulated piping systems : excluding walk-in tunnels.

"Prepared under Contract No. CST 263 between the National Academy of Sciences and the National Bureau of Standards."

Data zur Akustik : eine Abhandlung vorgelesen bey der Sitzung der naturforschenden Freunde in Berlin, den 15ten Dezember 1800 /

Mode of access: Internet.

Cost evaluation for nine Federal Motor Vehicle Safety Standards: Task VIII - FMVSS 301, fuel system integrity - determination of the model year when manufacturers made changes to meet Standard's 1976 requirements. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

Final report of a 1991 Plymouth Acclaim rear impact CNG fuel tank integrity.

National Highway Traffic Safety Administration, Washington, D.C.

A 1992 Dodge Ram B250 van rear impact CNG fuel tank integrity. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

An analysis of fires in passenger cars, light trucks, and vans.

National Highway Traffic Safety Administration, Office of Research and Development, Washington, D.C.

Automobile fuel tanks.

Mode of access: Internet.

Evaluation methodology for federal motor vehicle safety standards. Volume I: executive summary. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

Evaluation methodology for federal motor vehicle safety standards. Volume II: technical findings. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

Evaluation methodologies for four federal motor vehicle safety standards. FMVSS 214: side door strength. FMVSS 301: fuel system integrity. FMVSS 215: exterior protection. FMVSS 208: occupant crash protection. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

Review of four federal motor vehicle safety standards: FMVSS 214, 215, 301, 208. Task #1 report.

National Highway Traffic Safety Administration, Washington, D.C.

Final design and implementation plan for evaluating the effectiveness of FMVSS 301: fuel system integrity. Tasks #4 & #5 report.

National Highway Traffic Safety Administration, Washington, D.C.

Truck noise IV-A: project summary - the reduction of noise levels on the International Harvester quieted truck. Final report.

Transportation Department, Office of Noise Abatement, Washington, D.C.