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Design for Variable Frequency Drive Applications
This paper presents fundamental design criteria used to evaluate the operational and economic feasibility of installing a variable frequency drive (VFD) on a petroleum products pipeline....

An Investigation of the Supports of a Water Main
Two 48 inch (1. 22 m) diameter cast iron pipes constructed 50 to 70 years ago form a major part of the potable water transmission system of Atlantic City. For the most part of their length,...

Pipeline Infrastructure Rehabilitation
A significant amount of technological development has occurred during the past ten (10) years regarding the actual rehabilitation methods, or reconstruction procedures on the decaying...

Distribution System: Cost of Repair and Replacement
The Safe Drinking Water Act of 1974 mandates that EPA be concerned with the supply of potable water to the consumer. Although most emphasis has been placed on water quality as it leves...

Water Main Cleaning and Lining?A Utility Perspective
The Chester Water Authority is a regional water supply system located in Southeastern Pennsylvania serving a population of over 140,000 people in two countries and a large industrial complex...

Planning for Rehabilitation?MWRA Waterworks System
The Massachusetts Water Resources Authority (MWRA) operates and maintains 255 miles of large diameter distribution mains. Existing problems include increasing steel pipe repairs and extensive...

Computer Control for Salt Lake City Water System
In 1978 the Department of Public Utilities in Salt Lake City began to develop a computer system to aid in the operation of the water system. The Department of Public Utilities computer...

Energy/Environment Opportunities for Civil Engineers
In the West, Nuclear Facilities Decommissioning; In the East, Implementation of Waste to Energy Systems
The papers in this book examine and provide illustrations for civil engineering opportunities in resolving apparent conflicts between needs for energy generation and environmental acceptability....

Microcomputer Knowledge-Based Expert Systems in Civil Engineering
This book contains sixteen papers presenting applications of expert system technology to civil engineering problems with emphasis on microcomputer implementations. It is divided into four...

Infrastructure and Marketing in Water Resources
Marketing and infrastructure are two areas of growing interest and importance in engineering. Nearly every engineering discipline now uses some form of marketing to promote its products...

Chemigation Backflow Prevention Assemblies
Chemigation with sprinkler irrigation systems is widely used throughout the United States. One potential environmental hazard of this practice is the point source water contamination due...

Advanced Chemigation Systems for Environmental Safety and Groundwater Protection
A multifunction irrigation system has been developed which utilizes a separate dynamic in-canopy nozzle system for chemical application. Testing the system with a lithium tracer on four...

Drip Irrigation for a College Container Nursery
A drip irrigation system was installed by students during the summer of 1987 at the Ohio State University Agricultural Technical Institute, Wooster. The goals of this project were for...

Furrow Irrigation Performance Using Real Time Control
Computer simulations were conducted, using a simple feedback control algorithm, to determine the potential for improvement of irrigation performance using real-time feedback control. Field...

Needed Social, Cultural and Design Changes to Successfully Manage Nigerian Surface Irrigated Projects
The aim of this paper is to illustrate the broad nature of problems associated with the faulty initial designs of water distribution network and irrigation methods and poor participartion...

Conveyance Characteristics of Natural Channels in Wyoming
This paper addresses the quantification of instream or conveyance losses of water being transported within natural stream systems in Wyoming using a net total loss and incremental loss...

A Method for `Warped Surface' Land Forming Design
Most approaches to land forming are based on a plane surface design which in some cases may result in prohibitive costs or excessive removal of top soil....

Diagnostic Strategies of an Expert System for Simulating Snowmelt Runoff
An expert system, EXSRM, is being developed for an existing and well tested snowmelt runoff model. The expert system assists an unfamiliar user in setting up the model to run and then...

Cotton Response to High Frequency Irrigation
Three cotton production tests irrigated with the Low Energy Precision Application (LEPA) system were conducted from 1985 through 1987 on the Texas High Plains. Cotton treatments were irrigated...

A Comprehensive Tool for Tile Drainage Planning
The objective of the project is to design and develop a set of software tools, building on existing models and computer-assisted procedures, known as an Advanced Decision Support System...

 

 

 

 

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