Characteristics of Guri Soils

The Decay of Turbulence in a Stratified Fluid

The Civil Engineer and the Decay of America's Infrastructure
With the infrastructure of the United States continuing to deteriorate, the problem becomes who will decide how much to spend in both repairing, maintaining and building new facilities...

Densification of Paper Mill Sludge Materials
Dewatered paper industry primary sludges have a consistency similar to very soft remolded clays. Densification involves removal of additional water, usually by placement of a surcharge...

DO Model for Discharges from Deep Impoundments
A simple model is presented for the annual dissolved oxygen (DO) cycle of releases from the hypolimnion of deep impoundments. The model includes mathematical formulations and rate constants...

Design Approach to Dual-Power Aerated Lagoons
Completely- and partially-suspended lagoon cells are defined and their use in dual-power level, multicellular systems is discussed. A procedure is presented for the design of such systems...

Distribution of Toxic Substances in Rivers
A statistical technique was used to determine if hydrophobic organic substances have vertically a uniform distribution in a river. At a river polluted with chlorinated organic pesticides,...

Hydromechanics of Tidal Jets
A unified theoretical investigation of the fully-developed region of a tidal jet is presented. The jet is treated as a vertically-averaged flow and the effects of lateral mixing, bottom...

Decomposition of Solid Waste in Test Lysimeters
Eight test lysimeters containing 100-200 tons of refuse each were monitored for seven years for leachate and runoff rates, leachate and gas composition, refuse temperature, and surface...

Wave Decay Characteristics in Slowly Varying Depth

Ignition Test for Soil Organic-Content Measurement
Problems with organic soils are often avoided by engineers because of uncertainties in organic-content measurement and lack of information on potential decomposition. High temperatures,...

Separated Flow Through Large Sudden Expansions
Flow patterns for large, sudden expansions have been obtained experimentally. The experimental studies reveal that flow patterns for large expansions are highly asymmetric and unsteady....

Organic Carbon Decay in a Stream with Biofilm Kinetics

A Decomposition Method for Lifeline Risk Analysis

Civil Engineers Revitalize Ailing Inner-City Hospital
The reconstruction of the Cooper Medical Center in Camden, New Jersey, is described. The Medical facilities are part of the urban renewal plan for Camden. A unique feature of the project...

St. Louis, City on the Rebound, Willing to Try
Urban renewal plans in St. Louis have focused on giving incentives to private enterprise to develop inner city real estate for commercial, industrial, and residential use. The dollar volume...

Cost Optimization of Buildings
The methodology consists of the decomposition of the overall building design problem into a series of problems, one for each building subsystem, e.g., foundation, structure, roofing. The...

Strength Decay in R.C. Beams under Load Reversals
An experimental investigation to determine the effectiveness of intermediate longitudinal reinforcement in limiting shear strength decay of reinforced concrete members is presented. Test...

Convection Limited Sorption Kinetics in Packed Beds
If the rate capacity of sorbent particles to sorb exceeds the bulk convection rate of sorbate to those particles, then the latter mechanism is rate controlling. In a continuous flow packed...

Kinetics of Pure Oxygen Activated Sludge
No difference in the pertinent kinetic parameters has been found in experiments comparing two activated sludge systems one aerated by air and the other by pure oxygen. The kinetic parameters...

 

 

 

 

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