Bed Load Fluctuation: Applications
Based on the distribution of transport rate, the fluctuation of bed load and its application to hydrological measurement have been studied. The variance and coefficient of variation of transport rate for...

Torsion of Hollow Circular Cylinders with Creep
An exact analysis is presented for the load-deformational behavior of twisting of hollow circular cylinders made of materials that creep. The hyperbolic sine law is used. Curves which relate the variables,...

Pore Pressure Rise During Cyclic Loading of Sands
A new model for the quantitative determination of the pore pressure increase during undrained cyclic loading of saturated loose sands is proposed. The model depends on four parameters which are determined...

Hypolimnion Oxygenation Studies in Clark Hill Lake
Discharges from stratified hydroelectric generating impoundments are frequently drawn from the hypolimnin due to the low elevatin of the penstocks. The hypolimnion contains the colder water and thus provides...

Dynamic Estuary Model Performance
Applications of the Dynamic Estuary model (DEM) to both the Delaware and Potomac Estuaries by the Environmental Protection Agency during the 1970s are summarized and evaluated. Methods for calibrating,...

Beam Web Shear Connections: An Experimental Study
Bolted shear web connections were tested to evaluate the 1978 AISC Specification provisions concerning edge distance, end distance, and bearing stresses. Tests wee performed on beams with both standard...

Beams Under Lateral Projectile Impact
The influence of transverse shear effects, rotary inertia and the boundary conditions on the dynamic behavior of rigid perfectly plastic beams subjected to projectile impact at midspan is studied. Theoretical...

Response of Taut Strip Models to Turbulent Wind
An experimental investigation was conducted to clarify the fundamental behaviour of the proposed taut strip wind tunnel model of long span bridge deck systems. The study shows that this method is relatively...

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 for the processes...

Dynamic Response of Plate on Elastic Half-Space
Analytical results are presented for the dynamic response of a plate bearing on an elastic half-space and subjected to harmonic forces. The present work represents a departure from existing analyses in...

Plates of Varying Thickness with Four Simply Supported Edges
The methods of double finite Fourier transformation and two Trancendental Functions, Six and Cix, are adopted. A general expression of solution is given for a thin plate of variable thickness subject to...

Urban Impacts of Water Supply Reservoir
Water quality of Lake Houston, a rapidly urbanizing water supply reservoir near Houston, Texas, was characterized in terms of sediments, nutrients, and algal population. Data was collected at five in-lake...

Wave Spectrum Changes on Sloped Beach
A comparison of all the different approaches to analyze the problem of wave spectrum change on a sloped beach is presented. It is shown how the heuristic, theoretical and numerical formulations compare...

Task Committee on Engineering Education: Report to the Board of Direction
Engineering education, not civil engineering education alone, is in a crisis which could seriously damage the engineering profession and the national interest. Too few graduates are earning advanced degrees,...

Asymptotic Solution for Dam-Break Problem
The kinematic wave approximation is used to obtain a simple, closed-form solution for the catastrophic failure of a dam upon a dry, sloping channel. The solution validity is investigated by computing orders...

Safety Factor of Dams and Retaining Walls
Whatever the definition of the safety factor against overturning of dams and retaining walls, the state of minimum stability occurs when there is some water present in front of the wall. The correct definition...

Calorific Value of Wastewater Plant Sludges
Calorific values of wastewater plant sludges are best determined using an oxygen bomb calorimeter, an apparatus which is not readily available in many plants. Using a variety of sludges from thirteen municipal...

Generalized Wave Equation in Finite Domains
A generalized equation governing one dimensional wave propagation in finite domains is solved by employing the finite Sturm-Liouville transform. The formulation includes the effects of time dependent boundary...

Prediction of Water Level in Tidal Inlet
A very important and difficult problem is operation of gates at the inlet of tidal lakes in order to control water quality and quantity. The gate operation must sufficiently satisfy both flood control...

Slipforming of Reinforced Concrete Shield Building
The unique design and construction features of slipforming the heavily reinforced concrete cylindrical shield walls at the Satsop nuclear plant site are presented. It proved that, with proper planning,...

 

 

 

 

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