Some Factors Influencing Required Reservoir Storage
The impact of streamflow variability and correlation and demand patterns on the required capacity of a water supply reservoir were studied. Inflow traces were generated by simple Markov...

In-Plane Bending and Buckling of Arches
The state of knowledge of the in-plane bending and buckling of arches is summarized herein. There is a remarkable correlation between the critical thrusts for arches and columns. The buckling...

Problems Associated with Planning BOD Experiments
Possible inadequacies of commonly used long-term BOD experimental strategies are studied using actual BOD data and the first-order reaction model as a vehicle of analysis. The relation...

Run-Up Distributions of Waves Breaking on Slopes
Run-up of irregular waves which break on a slope is calculated by assuming that on the average the run-up of each wave with a given height and period equals the run-up of a periodic wave...

Estimation of Design Freezing Indices
A method for arriving at a rational estimate of the design freezing index for any place on the Canadian Prairies is described. A correlation between mean annual temperature, mean freezing...

Dynamics of Correlated Random Pulse Trains
Based upon the concept of infinite impulse trains, the paper introduces a physically realizable stochastic model defined as an impulse process. This model allows the random amplitudes...

Impact of Spheres on Ice
An oscilloscopic method for determining the coefficient of restitution, e, by impact of spheres on ice was developed. Teflon, acrylic, nylon,...

Ultimate Torque of Rectangular Reinforced Concrete Beams
Test results are presented herein concerning effectiveness of stirrups, distribution of longitudinal steel, and ultimate torque equation. The correlation with test results is also included....

Physics of Desaturation in Porous Materials
Previous investigations of the hydraulic properties of porous materials have been primarily empirical, i.e., correlations have been based upon experimental data. A physical description...

Nitrogen Removal by Modified Activated Sludge Process
A modified activated sludge process called contact-stabilization-denitrification makes it possible to eliminate 80% to 90% of the incoming total nitrogen in addition to the usual BOD removal....

Hydrograph Synthesis by Digital Computer
This study consists of hydrograph synthesis based on an investigation of runoff from small drainage basins in Texas. A technique for determination of the temporal distribution of infiltration...

Space Correlations in Round Turbulent Jet
Turbulence measurements were conducted in the mixing region of a turbulent round jet having a 0.2 ft diam and an efflux velocity ranging from 35 to 50 fps. All three components of the...

Dispersion of Floating Particles in Uniform Channel Flow
An investigation is given of the dispersion of small particles floating on the surface of an open channel with uniform flow and wide rectangular cross section. The dispersion was exclusively...

Unit Graphs for Nonuniform Rainfall Distribution
Correlation between Snyder's basin constants Ct and 640 Cp and basin physical characteristics...

Regional Drought Frequency Analysis
Analysis of severity and duration of droughts in central United States and Massachusetts is compared with available drought data from California, the Clearwater River, Illinois, the Soviet...

Load Transfer for Axially Loaded Piles in Clay
An analytical method for developing a theoretical load-settlement curve for axially loaded piles in clay is presented. The method is based on the correlation of the ratio of load transfer...

In Situ Measurement of Solids in Final Clarifiers
An apparatus was assembled and a method was developed for the in situ measurement of solids concentration gradients occurring in final clarifiers of an activated sludge process. Tests...

Spurious Correlation in Hydraulics and Hydrology
Spurious correlation is the correlation built into ratios, products, or other functions of two sets of random variables when the two sets have some elements in common. In hydraulic and...

Traffic Accident Study On Milwaukee Expressway
Correlations between traffic accidents and geometric design features of freeways are presented. On through lanes, visibility relationships with geometric features along the through lanes...

Evaluation of Hydraulic Efficiency of Sedimentation Basins
Detention time distribution curves of a pilot sedimentation basin were analyzed by the conventional method using central tendency values of the flow curve and by a new method in which...

 

 

 

 

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