Simple Model for Ocean Outfall Plumes
We have shown that a power law model provides a simple technique for predicting the dilution as a function of depth, for depths characteristic of most outfall systems. In particular, we...

Ice Sheet Loads on Marina Piles
Two marina piles were instrumented with steel sleeves. The steel sleeves were fixed rigidly to the top of the piles. The bottoms of the sleeves were free to freeze into the ice sheet....

Sedimentation of River Navigation Channels
The sedimentation of navigation channels due to leveling of side slopes is investigated. This leveling is caused by the deviation of the particle path from the direction of bed shear on...

Electric Energy Supply into 21st Century: Challenges and Changes
Present forecasts for the total United States energy consumption for the year 2000 range to 192 quadrillion Btu indicating need for an annual energy supply about twice current consumption....

Overland Flow Pretreatment of Poultry Manure
The overland flow pretreatment process for poultry manure resulted in 77%, 69%, 66% and 56% mass reduction of COD, TOC, TKN, and TP, respectively, after 30 m of flow. In comparison, flow...

Methodology for Calibrating Stormwater Models
A method for calibrating coupled quantity-quality stormwater management model is presented. The United States Environmental Protection Agency Storm Water Management Model is used as an...

Measurements of Bed Load in Oscillatory Flow
Measurements have been made of the quantities of sediment moving as bed load in oscillatory flow over a flat bed. Most of the measurements were made with an oscillating tray in still water...

Transport Canada Airfield Pavement Load Evaluation
Particular attention is paid to the load rating system recently developed for use in the Canadian airport system. Aircraft and pavements are assigned load ratings on a common pavement...

Pavement Strength Rating Methods as Viewed by Airframes Manufacturers
The effects of allowable aircraft payload of variations in tire pressure, axle spacing, and wheel spacing were explored using four important pavement design/rating methods. The methods...

Trickle Irrigation Uniformity and Efficiency
Expressions are developed and presented for the pressure head available at any point within a trickle irrigation subunit. Histograms are drawn showing the distributions of pressure within...

Management of Rural Water Supply Peak Flow Rates
Flow rates in lines serving four and fifteen families were recorded continuously during two summer peak periods on a low-density rural domestic water system in Utah. During the second...

Stormwater Analysis and Prediction in Houston
Analyses of available stormwater hydrologic and water quality data for several Houston area watersheds yielded direct linear relationships between pollutant mass loading rates and cumulative...

Drainage Density as Index of Watershed Development
Studies have been completed on watersheds in Florida, and a methodology developed to predict environmental impacts using drainage characteristics of developing watersheds. The drainage...

Stochastic Design of Flow Equilization Basins
A deterministic-stochastic time series model for wastewater flow rates is used in simulated real-time operation of in-line flow equalization process. To size wastewater flow equalization...

Transport Efficiencies and Vehicle Occupancy Rates

Optimal Plastic Design: Allowance for Self-Weight
One of the most useful tools in structural optimization is the Prager-Shield condition which requires the strain rates to be everywhere equal to the gradient of the specific cost function....

Application of Flow-Sediment Model to Red River
An easily applicable method of computing sediment transport throughout a reach of river is presented. More specifically, a method to determine areas of scour and deposition along the river...

Viscoelastic Response of Imperfect Surface Slab
The problem of an infinite slope with a shear-free slope parallel imperfection zone is considered and analyzed to evaluate the stress and strain concentrations produced by this type of...

Personnel Survivability in Blast Wind Environment
An analysis method has been developed for the purpose of predicting the survivability (relative safety) of people who may be located in conventional buildings when subjected to the direct...

Beach Sand Transport: Distribution and Total Drift
Considerable data have been collected in laboratory wave basins in an attempt to relate the sand transport rate to the wave conditions. This study undertakes a review of laboratory data...

 

 

 

 

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