Design with Residual Materials
Geotechnical and Construction Considerations
Residual materials are in-place soil and rock like material derived from the chemical weathering of rock. The nature of residual material is a function of the type of parent material and...
The Return of Deep Soil Mixing
Deep soil mixing, a technique originally developed in the U.S. in the 1970s but virtually ignored because for cost reasons, is regaining acceptance here due in large part to mechanical...
Partnering with the Enemy
When you think of EPA and a major corporation, you probably envision them squaring off in court over a Superfund site. But these days representatives from the two groups are just as likely...
Greening of Ground Water
As many as 69 different organic compounds and 24 metal species can be found in ground water underlying the 85 acre Bofors-Nobel Superfund site in Muskegon County, Mich., a testimony to...
Not Your Father's Concrete
A simple mixture of water, aggregate and cement, conventional concrete is environmentally-friendly by nature. But with landfills bloating and hazardous wastes becoming increasingly difficult...
Capping with Fiber Clay
Landfill-cap construction is expensive and often results in economic hardship, especially for small towns. Costs for conventional clay or geomembrane caps for municipal solid-waste landfills...
The Boom in In Situ Bioremediation
In situ bioremediation was first applied in 1972 when a subsurface release of high-octane gasoline threatened the water supply of a small town in Pennsylvania. Soluble inorganic nutrients...
The Role of Computer Graphics in Teleoperation
Computer graphics techniques developed by the Advanced Teleoperation (ATOP) Project at the Jet Propulsion Laboratory (JPL) for the control of remote manipulators, primarily for space applications,...
URSULA: Design of an Underwater Robot for Nuclear Reactor Vessel Inspection
This paper describes the development of an underwater robotic system that will be used to perform ultrasonic inspections of nuclear reactor vessel weldments. The development effort consists...
Robotic Workcell for Waste Handling
During the sorting and repackaging of recovered waste, robotic systems for grasping and manipulating odd-shaped objects of varying sizes will be needed. Also, during the removal of buried...
Advancement of Material Handling Technologies for In-Place Asphalt Pavement Recycling
New technologies for asphalt pavement resurfacing are improving dramatically with the advancements being made to related equipment technologies. This paper focuses on the recent developments...
Behavior of Bolted Joints in 3-D Braided Composites
As composites are used more as replacements for metals in space structures, the question arises as to the most efficient way to join the components. Mechanical fasteners are a common joining...
Resource Recovery Facilities for Earth Approaching Comets
Mankind's next large resource location may be off the planet. The facilities required for mining and material processing offer interesting concepts for the development of mankind's first...
Lunar Mining
Mining the moon for materials that can be used for the advancement of space research would be very profitable. It would be necessary to develop equipment for mining. There would be a need...
Mineral Liberation and Beneficiation of Lunar High-Ti Mare Basalt, 71055: Digital-Imaging Analyses
Knowledge of the abundance of various lunar minerals and the ability to effectively beneficiate thee minerals are important requirements for effective utilization of lunar resources. SEM/EMP...
Reservoir Estimates for the Sulpicius Gallus Region
Estimates presented here show that 1.1?109 metric tons of oxygen could of produced from one of the enriched areas that have been detected by spectrographic...
Kinetic Interpretations of First Reactivity Experiments on Lunar Basalt Samples
For the first time, water/oxygen production from Apollo program lunar samples has been experimentally demonstrated. The experiments gave extremely encouraging results as all ilmenite was...
Lunar Oxygen Production in a Hydrogen Cold Plasma
This paper examines the concept of oxygen production from unbeneficiated lunar regolith using a non-equilibrium or 'cold' hydrogen plasma. An experimental investigation has indicated that...
Optical Waveguide Solar Energy System for Lunar Material Processing
This paper summarizes a study of the optical waveguide (OW) solar energy system for lunar material processing. In the OW solar energy system, solar radiation is collected by the concentrator...
Onboard Image Processing With Transputers
A transputer based onboard computer for planetary vehicles is being designed in the KFKI Research Institute for Particle and Nuclear Physics (RMKI), Budapest, Hungary. In this paper we...
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