One Small Step
A concept design for an inflatable habitat on Mars incorporates indigenous ice as a structural element and a shield to protect occupants from galactic cosmic radiation....
Taking Treatment to the Extremes
Designing a wastewater treatment facility that meets current environmental guidelines can be challenging enough. But designing it so it can be shipped, constructed, operated, and maintained...
UV Acceptance
Ultraviolet disinfection of wastewater is increasingly being used. The method has been available since the early part of the century, but chlorine was widely available and generally cheaper....
Analyzing Drought with a Simplified Climate Model
A simplified climate model with combined atmospheric-hydrologic processes has been developed at the University of California Davis for the study of physical processes related to drought....
Design Guidelines for UV Disinfection Facilities
Current design methods for UV disinfection facilities depend largely on experience with minimum input design variables, such as water UV transmittance and required disinfection efficiency....
Numerical Modeling of Flows in Ultraviolet Disinfection Channels
Current design methods for UV disinfection facilities depend largely on experience with minimum input design variables, such as water UV transmittance and required disinfection efficiency....
Environmental Hardening of a Mobile-Manipulator System for Nuclear Environments
The research report involves the radiation hardening of a commercially-available, mobile robot, the REMOTEC ANDROS. This hardening effort will culminate in the availability of a mega-rad...
Thermal Response in Antenna Under Laser Irradiation
This investigation focuses on the thermal response of two objects under medium-intensity continuous-wave (CW) laser irradiation: (1) a homogeneous slab and (2) a complex electronic component,...
Overview of Space Environmental Effects
The natural environment for low Earth orbit subjects satellites to various forms of damage, ranging from particulate impacts, ultraviolet light, atomic oxygen erosion and charged particle...
Inter-stellar Propulsion: The Need for Speed
Interstellar travel is certainly one of mankind's next step to reach for the stars. Four ideas for interstellar propulsion are discussed in this paper: the Orion Project, Deep Space Ramjets,...
Nuclear Propulsion: Safety Measures and Concerns
Since nuclear fission was discovered, many potential uses for it have been found. One such application of fission is nuclear propulsion systems in space ships; however, the elements resulting...
Methodology for Comparing Lunar Settlement Designs
This paper examines a methodology used to compare divergent lunar settlement proposals. It is suggested that the methodology be added to other selection tools for determining which is...
Engineering Implications of Levitating Lunar Dust
In this paper an attempt is made to provide a physical understanding of these various phenomena and their long-term effects on the lunar environment. This understanding is then applied...
Lunar Base Construction Using the Reinforce Earth Method with Geotextile
This paper focuses on the construction of layered embankments using regolith and filmy materials (called geotextiles) with a robot machine before setting up of the cylindrical module on...
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...
The Lunar Ultraviolet Telescope Experiment (LUTE)
The Lunar Ultraviolet Telescope Experiment (LITE) is a feasible scientific payload which could initiate a unique ultraviolet (UV) sky survey from the lunar surface prior to our manned...
Removal of Bromate After Ozonation by Electron Beam Irradiation
Drinking water regulations related to disinfection, disinfectant by-product (DBP) control, DBP precursor removal and contaminated source water pre-treatment will become increasingly stringent...
Significance of Campaigned Spent Fuel Shipments
Operational experience associated with spent fuel or irradiated hardware shipments to or from the General Electric Morris Facility is presented. The following specific areas are addressed:...
New Directions for EPA's High-Level Waste Standards
Recently enacted legislation passed by the 102nd Congress directs a significant change in the Environmental Protection Agency's (EPA) development of standards for spent fuel, high-level...
Plutonium and Minor Actinide Transmutation by Long Irradiation in LWR
An investigation was made on the conceptual possibility of burning in a thermal reactor MOX fuel together with special pins containing plutonium, minor actinides and long-lived fission...
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