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CAD and Video Teleconferencing Network Development
The Institute for Telecommunication Sciences is developing a prototype network to demonstrate the integration of a variety of services and methods for fulfilling Navy shipbuilding requirements....

Environmental Risk Assessment at a Gas Utility
Over the past 10 years, Southern California Gas Company (SoCalGas) has developed an environmental risk management program to mitigate or eliminate the potential health risks to employees,...

Monte Carlo Simulations of Uncertainties in Risk Assessments of Superfund Sites Using Crystal Ball?
Most health risk assessments for Superfund sites combine a series of worst case assumptions to derive a 'point estimate' of risk that is 'conservative,'...

Radon Resistant New Construction Practices
This paper highlights the basic principles for building radon-resistant houses and it groups the construction techniques into four categories, i.e., the barrier approach, soil ventilation...

Cost of Radon Control Measures in New Construction
Installation of a radon prevention system in new construction increases costs to builders and to homebuyers as well. Builders and/or their engineers will need to assess different approaches...

QSAR Based Expert System For Environmental Hazard Management
This study was done to investigate the feasibility of developing an Expert System for application in environmental hazard management and control. The specific objective of the study was...

Analysis of Model Uncertainty Using Bayesian Monte Carlo
Bayesian Monte Carlo analysis combines Bayesian inference with standard Monte Carlo techniques to provide improved estimates of the uncertainty in water quality model parameters and results....

Mathematical Modeling of Compressible Cake Filtration
A numerical and analytical model of cake filtration was derived from liquid and solid continuity and momentum equations. Constitutive relationships describing porosity as functions of...

Irrigation and Drainage Practices
Salinity causes many problems in agriculture, by lowering production or requiring more intensive management on farms, or by degrading off-farm soils and waters. This paper describes causes...

Hydrologic Methodology for Evaluating Urban Development
It is recommended that a hydrologic methodology be utilized that contains sufficient parameters to enable the user to evaluate the impact of the changes to the watershed resulting from...

Modeling of Nitrate Transport Coupled Dentrification in the Saturated Zone
A numerical model for simulating nitrate transport coupled to microbial activity in the saturated zone is presented. A coupled system of equations describes the transport and microbial...

OMADSS?Operations and Maintenance Advanced Decision Support System
This paper presents a summary of the development of a prototype advanced decision-support system for operation and maintenance of dams and irrigation facilities. To set the development...

Parameter Identifiability in Conceptual Rainfall?Runoff Models
Computers have played a major role in the evolution of hydrologic rainfall-runoff models. Besides providing the computational power required for the simulation of the complex interacting...

Risk Management of the Ottawa River System
The Ottawa River System is a large-scale and complex system comprising 30 major reservoirs and 43 generating stations and has a long history of flooding that extends throughout the basin....

Mesoscale Numerical Weather Prediction for Reservoir Design and Flash Flood Management
A portable, interactive weather prediction system (PIWPS), which runs on a desktop workstation, has been developed and tested on several heavy precipitation events in the Rocky Mountains,...

Graphical Canal Model for System Operators and Planners
Contra Costa Water District operates the Contra Costa Canal, part of California's Central Valley Project. Hydrocomp, Inc. developed an interactive graphical model of the canal...

New Developments in Modeling 3-D Sedimentation Phenomena
This paper is intended to summarize the new findings accomplished recently in an effort to develop highly stable and efficient numerical models to correctly and accurately simulate three-dimensional...

Numerical Modeling of Suspended Sediment Transport
Validity domain of hypothesis of depth integration has been approached by comparison of results of depth integrated model with complete vertical models. Use of shape functions to represent...

A Tracer-Model for Morphological Simulations of an Estuary
Numerical models for longterm morphological simulations are traditionally based on assumptions like vertical integration of the flow and transport equations and their decoupled treatment....

On the Numerical Simulation of Suspended Sediment Transport in Estuaries
Estuarine fine sediment transport is governed by a wide range of hydrological, chemical and biological parameters including baroclinic circulation, tidal pumping, resuspension, deposition,...

 

 

 

 

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