Central Office
A Central Office (CO) is where calls are processed. In the complex hierarchy of the PSN, there are many other facilities to which this definition applies; they are Digital Loop Carrier...
Outside Plant
Outside Plant can be defined as equipment and facilities connecting a CO to other COs, and connecting a CO to subscribers. Depending on the distance and the terrain involved, the methods...
Project Object
Modeling and managing water systems is a notoriously difficult task, one made simpler by PRSYM, a new object-oriented software package created by a consortium of public utilities, government...
Structural Aerodynamics (Available only in
One of the most strikingly ambitious public buildings in France, county governmental headquarters in Marseille, achieves the status of world-class architecture largely through its structural...
Small Firms, Big Challenges
Does it pay to be small? Though many small engineering firms find strength in their size, others are hampered by limited resources and a specialization that diminishes their client base....
A Gatehouse for Johnson
Philip Johnson's latest addition to his eclectic collection of architectural designs on his Connecticut property is a radical departure from his famed Glass House. Builders...
Rock `N' Roll in Cleveland
A glass tent, a cylinder perched on a single column, a collection of squares, rectangles, triangles and circles were amassed in and around a 167 ft tall tower by architect I.M. Pei to...
Translucent Structural Beacon
In East Los Angeles some 2,000 children, teens and adults are accessing their future inside a building that is as high-tech as the computers they are using to learn. The 40,000 sq ft building...
Catching Up on Composites
Until recently, Japan and Germany were way ahead of the U.S. in composite material technology for construction. Lighter, stronger and possibly more durable than conventional materials...
Lining the Line
Having succeeded in achieving dry stations and tunnels in mined construction, flexible waterproofing membranes are now being used to waterproof cut-and-cover subway stations and old, leaking...
Accessing Atlantic City
Construction of the 2.2 million sq ft Atlantic City Convention Center is well under way. With 486,000 sq ft of exhibition space, the center and accompanying rail terminal could help restore...
Returning Veteran
The Veteran's Memorial Bridge on the Cuyahoga River is a vital link in the transportation system of Cleveland and a gateway to the city's downtown area. But time...
Asphalt Update
Of the $150 million spent in the five-year Strategic Highway Research Program (SHRP), $50 million went to research to improve the durability and cost-effectiveness of asphalt pavements--on...
Start the Presses!
Turning an existing bleach manufacturing facility into a printing plant required careful structural design to support a wide range of production processes. The new Daily News facility...
Cable Corrosion in Bridges and Other Structures:
Causes and Solutions
This book provides the reader with basic facts concerning cable corrosion and means to avoid or rehabilitate corrosion damage. Corrosion problems associated with cable-supported structures...
Dynamic Optimal Groundwater Remediation by Granular Activated Carbon
Objective functions to describe the operating and capital costs of GAC treatment are incorporated into a control theory model for optimal pump-and-treat groundwater remediation design....
White River Fish Screen Project?Hydraulic Modeling
In 1983, Puget Sound Power and Light Company (Puget Power) proposed in a license application to FERC for the overall White River Project replacement of the existing fish screens constructed...
An Update on Surface Renewal Estimation of Evapotranspiration
The surface renewal (SR) method for estimating sensible heat flux density (H) has been shown to give good estimates of evapotranspiratiou (ET) when used in an energy balance equation with...
Permeability of Clay Liners with Contaminants
Clays are increasingly used as liners for waste disposal facilities. Chemical compatibility studies with hydraulic conductivity tests must be performed to determine the effect of the waste...
Rational Design and Operation of Packed Bed Adsorption Reactors
Design of packed bed adsorption reactors is based presently upon the parameter empty bed contact time (EBCT), a fallacious concept. The column wave front behavior, instead, should be the...
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