Extraction of Potable Water from Urine for Space Applications
A regenerative technology capable of managing water and wastewater on-board long-term manned space platforms is essential if the Bush Administration's Space Exploration Initiative (SEI)...
A Systems Approach to Water Recycling Research
Because of the cost of Earth resupply, water recycling from wastewater is a critical enabling technology for long duration space missions. The need and the fact that water quality is not...
Developments of Modelling Software for Civil Engineers
The paper describes some of the recent problems in the development of software tools for civil engineers, especially software for hydrodynamic and water quality simulations for environmental...
Thirty Year Simulation of Chesapeake Bay Eutrophication
Eutrophication processes in Chesapeake Bay, 1959-1988, are simulated using a three-dimensional model package. Results link the volume of anoxic water to degree of stratification and to...
Model Development for Operational Use to Help Spill Combating and Sea Rescue
Based on twenty years' experience on flow velocity measurements, transport experiments and numerical modeling the three-dimensional (3D) models of water currents, transport and water quality...
Modeling Transport and Fate of Micropollutants in Coastal Waters
In order to assess rate and risk of pollution of coastal waters, attention should be given to the input of pollutants, the transport of pollutants, the transfer of pollution between water...
Circulation Modelling and Water Quality Prediction
A circulation and water quality modelling system for use in areas where horizontal transport is dominating is presented. The water quality can either be described as BOD-DO processes or...
Modeling Tidal and Wind Driven Circulation in Sarasota and Tampa Bay
As part of an effort to quantify the effects of hydrodynamics on water quality within Sarasota Bay, Tampa Bay and their adjoining waters, a field and modeling study of circulation and...
Application of a Boundary Fitted Coordinate Mass Transport Model
A three-dimensional, boundary fitted coordinate, finite difference, mass transport model was applied to the Providence River in Upper Narragansett Bay, Rhode Island. The governing advection-diffusion...
Water Quality Modelling: Prediction of the Transport of Water Constituents in the Weser Estuary (Germany)
Water quality monitoring of the Weser estuary is carried out in conjunction with numerical modelling of the transport processes. For analytical and prognostical studies, and especially...
Numerical Simulation of a Shallow Estuary?Weeks Bay, Alabama
This paper describes a study of Weeks Bay, Alabama, an estuary located on the eastern shore of Mobile Bay in the northern Gulf of Mexico. In this study the WIFM model is used to simulate...
Numerical Simulation of Tidally Induced Three-Dimensional Hydrodynamics of New York Bight
A time-varying three-dimensional (3D) numerical hydrodynamic model has been applied to the coupled New York Bight, Long Island Sound, and Hudson River flow system. The modeling effort...
A PC-Based Integrated Water Quality Impact and Analysis System
An integrated water quality model system (WQ Shell) has been developed for the PC. The system is designed to provide an easy-to-use graphical interface which integrates geographical and...
Hydrodynamic and Water Quality Modeling of Lower Green Bay
A confined disposal facility (CDF) for dredged material presently exists in lower Green Bay, Wisconsin. A planned expansion of the CDF is being studied to assess its impact on current...
Impact of Breakwater Removal on Hydrodynamics and Water Quality in Flushing Bay, New York
Hydrodynamic and water quality models were used to simulate the potential effect of removing a breakwater to increase flushing and improve water quality in Flushing Bay, New York City....
Grouting Against Hazwaste
Grouting has only recently entered the hazardous-waste arena, mainly in the form of positive cutoff slurry walls. At an industrial landfill near Niagara Falls, N.Y., a three sided, single-line...
Green Architecture: Designing an Ecologically Sound Dwelling
Green architecture has evolved in many places with various names such as natural, healthy, ecological, organic, biological, harmonic, sacred, holistic, etc. The general focus of Modern...
Customer Requirements in Industrialized Housing
Residential construction efforts in the U.S. are highly fragmented, and this has slowed the application of new technologies. While there has been an increase in the use of manufactured...
Transportation Planning Requirements of the Federal Clean Air Act Amendments (CAAAs) of 1990: A Highway Perspective
The transportation community faces many challenges ahead, as it tries to meet the Nation's mobility needs, reduce congestion levels, and improve air quality. Traffic congestion is increasing...
Opportunities for Improved Transportation Planning
The approaches, technical procedures, and analytical methodologies utilized for urban transportation planning need to be improved if the intent of the 1990 amendments to the Clean Air...
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