Variational Solutions of the Von Karman Plate Theory Based on a Mixed Formulation
A mixed formulation, involving the transverse deflection w(x,y) and the in-plane stress function F(x,y) as the unknown variables, will be used to obtain improved variational solutions...

Regularization Methods for Identification of Structural Damage
Generally, various non-unique solutions may be obtained from ill-conditioned equations. Several methods are available to obtain a unique (minimum energy) solution to a modified and thus...

Design Concepts for a Lunar Electric Power System
This paper discusses the results of ongoing research and the evaluation of various concepts for transmission, distribution and utilization of electric power for a lunar liquid oxygen plant....

Polycrystalline CdTe Solar Cells for Large-Scale Space Applications
Solar cells are recognized energy sources for use in space. In this talk, the current status of polycrystalline CdTe solar cell development and the potential use of this technology for...

Rocket Fuel to Earth Orbits from Near-Earth Asteroids and Comets
The analysis describes an architecture to bring 10,000 tons units of rocket fuel ore, propellant and construction mass back to low Earth orbit from newly discovered near-Earth comets or...

Control of Contaminant Transport in Estuaries
This paper describes the development of a computational procedure for the adaptive control of hazardous releases in a vertically-mixed estuary. In particular, the control strategy is aimed...

Lunar-Based System to Supply Power to Earth: Summary of Concept, Benefits, and Development
The Lunar Power System (LPS) is described, references are given to other published work, and possibilities for demonstrating LPS are outlined. Analyses indicate that LPS can provide inexpensive...

Performance Specifications for the Design and Manufacture of Energy Efficient Housing in the 21st Century
This paper reports on work in progress in `Design for Energy Efficiency', one of fifteen task areas of the U.S. Department of Energy sponsored Energy Efficient Industrialized Housing research...

Climatic Change and Ensuing Risks Facing Water Resources Managers
Global climatic changes will have a significant effect on the utilization of regional water resources and will influence markedly the operation and management of water storage and delivery...

System Engineering and Risk
System engineering means many things to many people, but there is a large group of practicing engineers in the defense and energy sectors who define system engineering as a structured...

Technology Transfer Lessons from a U.S. Water District
An interceptor canal will be constructed near the end of eight laterals to collect and transport operational discharge and returned farm deliveries to a reservoir for temporary storage....

Hydrogeotechnical Considerations for the Disposal of Oil Shale Solid Waste Material
Laboratory tests and five large scale lysimeters (7.3?3.0?3.0 m deep) have been constructed to collect information and data on hydrogeotechnical factors which affect an oil shale solid...

High Level Radioactive Waste Management 1992
The proceedings of the third International Conference on High Level Radioactive Waste Mnagement, held on April 12-16, 1992, Las Vegas, Nevada, provides information on the technical and...

Gate Maritime Wharf and Intermodal Facility
Gate Maritime Properties (GMP) is a small private port located in Jacksonville, Florida. In November of 1989, Gate signed a long-term lease agreement with the U.S. Department of the Navy...

Modifications to Coal Pier 6 Made Necessary by a Deeper Channel
In 1987 it became apparent to the Norfolk Southern Corporation that the U.S. Army Corps of Engineers proposed dredging of the Norfolk, Virginia Harbor would become a reality. Coal Pier...

Soil Contamination Issues at Port Marine Terminals
A preliminary survey of hydrocarbon contaminated soil and groundwater problems in U.S. west coast ports indicates that the problem occurs in most major port areas. Using the Port of Los...

Analytical Prediction of Gasoline Thickness on the Water Table
With the increased use of immiscible fluid products such as gasoline, the threats to groundwater resources by hydrocarbon products are increasing. The success of recovery of the hydrocarbon...

Water Supply Operations During Drought
During years when water supply may not be adequate to cover water demands, water supply decision maker or managers need to decide how to spread projected shortages through the anticipated...

The 1991 Revolution in Water Management
A revolution in water management took place in California in 1991, the fifth consecutive year of drought. Deliveries from California's major water projects in 1991 were reduced 70 to 100...

Managing Water Supply with Aquifer Storage and Recovery
The City of Chesapeake, located in the Hampton Roads area of Virginia, is experiencing a rapid growth in population which translates into an increased demand for water, particularly during...

 

 

 

 

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