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More Effective Accident Records Systems Using Natural Language Processing
The paper identifies three problems associated with state Accident Records Systems: quality control of data input, inconsistencies among data files, and poor accessibility. The paper discusses...

A Microcomputer Program for Roadway Lighting Design
LUMSIM is a knowledge-based design program that uses operator input data and design criteria to select the most economical lighting system. The initial input parameters include pavement...

Using Lap Tops as Connections to Minicomputers in the City of Portland
Over the past few years, the City of Portland has used a mix of personal computers and minicomputers to accomplish its mission. This paper describes four applications of using lap top...

Expert System for Flexible Pavement Management Using Lotus 1-2-3
The paper shows how a spreadsheet, LOTUS 1-2-3, can be used in developing expert systems without using any other software. The application program is for selecting a dominant maintenance...

Structural Reliability Through Machine Learning From Case Histories
The development of a management tool for the control of structural safety is described. Artificial intelligence techniques of 'machine learning' are employed...

Infiltration or Roughness from Surface Irrigation Advance
Over the past several decades, a significant effort has gone into the development of mathematical models of water flow over the soil surface. Significant progress has been made in prediction...

Bottom Plugging Dynamics in Recharge Basins
The Orange County Water District is investigating the reasons why percolation rates in deep recharge basins rapidly decrease. The interrelationship between microbiological activities in...

Effect of Water Depth and Groundwater Table on Infiltration from Recharge Basins
The actual effect of water depth on infiltration depends on the depth to groundwater and on whether the wetted perimeter of the basin is clean or covered by a clogging layer of fine particles...

Artificial Recharge in the Southern Ogallala?Experiences with Playa Lake Water and Filter Underdrains
Ground water in southern portions of the Ogallala Aquifer has declined significantly over the past several years. Attempts to recharge playa water in the past have failed due to the clogging...

Droughts and Water Supply
The current drought in California and the western U.S. are set in the framework of drought persistence, drought forecasting and reducing the consequences of droughts. During the fifteen...

Transmission Losses, Flood Peaks, and Groundwater Recharge
Abstractions of streamflow in ephemeral stream channels from infiltration in the channel beds and banks are called transmission losses. These losses are important because water is 'lost'...

Harvest of Ephemeral Runoff for Artificial Groundwater Recharge in Arid Basin Water Management
Harvest of springtime flow to a playa in Lemmon Valley, north of Reno, was evaluated as a means of increasing local groundwater supplies through artificial recharge. Surface water and...

Water Budget Analysis for Semi-Arid Alluvial Basins
In developing arid basins in the southwestern United States, the availability of suitable water supplies is of critical importance. Scarcity of dependable, perennial streams and rivers...

Shop Creek Stormwater Quality Enhancement Project
The advent of NPDES regulations for stormwater discharges creates a need to verify, on a regional basis, the effectiveness of emerging water-quality control technologies such as extended...

Urban Stormwater Management Practices: Concepts and Misconceptions
A variety of methods are practiced for the management of urban stormwater runoff. These include detention basins/ponds, retention basins, infiltration basins, and seepage pits. This paper...

The Stacked Drift Tunnel
The Mount Baker Ridge Tunnel is the first of its kind and the last: a forward thrust of technology and a look back to the flow of federal highway funds, which paid 90% of its cost. The...

Prospects for International Engineering Practice
International trade is growing in construction products and services. It is stimulated by international efforts to reduce technical barriers to trade and the formation of a single European...

Recharging Ground Water
For more than 55 years, the Orange County Water District has been responsible for the protection and management of the extensive ground water basin which lies under Orange County, California....

Do the Right Thing
Engineers and scientists at the Center for Advanced Decision Support for Water and Environmental Systems (CADSWES) are developing software to support water resource and environmental decision...

A Prototype Expert System for Steel Connections
A PC-based, menu-driven, five-module prototype knowledge-based system has been developed for steel connections. The system can solve various steel connection problems by utilizing the...

 

 

 

 

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