U.S. Geological Survey Federal-State Program
The U.S. Geological Survey Federal-State Cooperative Water Resource Program is a partnership between the Geological Survey and State and local agencies for the collection of the hydrologic...

Water Law Primer
An overview of legal principles controlling water resources use and development is provided. The body of legal principles is a combination of federal and state law, with federal law generally...

TVA Hydro Scheduling Model: Theoretical Aspects
The optimization procedures used in the Tennessee Valley Authority (TVA) HYDROSIM model are described. Scheduling of the TVA operated reservoir system poses a stochastic, nonlinear, multireservoir...

Investigation of Daily Flow Forecasting Models
Two types of models for forecasting daily flows from a basin are investigated. These model types are a segmented model whose components are multi-input linear models of the basin between...

An Alternative to the Peripheral Canal
The present mode of water transfer through the Sacramento—San Joaquin Delta is not adequate to meet both future export requirements and maintain desired water quality. A 42-mile long Peripheral...

Elasto-Plastic Settlement of Rigid Footings
A simple method of estimating elasto-plastic settlement of circular or annular centrally loaded footings is presented. The method incorporates the elasto-plastic behavior manifested through...

Interaction of Soil and Penetration Projectile
The motion of a terradynamic penetrator is formulated, and some interaction characteristics as the added mass and the interaction pressure distribution are calculated. The magnitude of...

Interaction of Cable Roofs with Support Structure
Tensioned structures are becoming increasingly popular for covering large column free areas on account of efficient utilization of construction material, speedy construction and economy....

Microbial Activity in Activated Carbon Filters
To obtain information on the adsorption, bacteriological oxidation and desorption processes in filters, the oxygen consumption (ΔO2) and the removal...

Sewers and Cities: France and the United States Compared
The development and impacts of wastewater systems in France and the United States and their application for developing countries are discussed. Watercarriage technology was adopted in...

Anerobic Treatment in Novel Contact Digester
Laboratory studies are presented on a combined jet gas mixed and sludge blanket anaerobic contact digester with continuous sludge recycle. Raw piggery waste substrate is used as feed with...

Pharmaceutical Waste Treatment by Anaerobic Filter
The anaerobic filter has been used on a laboratory scale to treat a variety of industrial wastewaters. The process was known to be effective at treating fermentation pharmaceutical wastes...

Models of Landfill Leaching: Organic Strength
Mathematical models are applied to the dissolution, transport, and decay of organic materials in unsaturated sanitary landfills. The models are based on cascaded reactor concepts and on...

One Uses His Umbrella When It Rains
The engineering profession unity movement is reviewed, with a brief explanation of the reasons for forming the American Association of Engineering Societies. A brief historical background...

Simplified Earthquake Analysis of Suspension Bridge Towers
Free vibration and earthquake response analyses of a simplified continuous analytical model representing suspension bridge towers (fixed at the base) are presented. In addition, various...

Simplified Bending Theory for Wire Rope
A theory has been developed to predict the static response of wire rope subjected to tension, torsion and bending. This type of loading occurs frequently in ropes wrapped around sheaves....

Response of MDOF Systems to Vector Random Excitation
A model time history random vibration analysis is presented. The random excitation is nonwhite, nonstationary, vector-valued and correlated. Excitation components may have different frequency...

Sandwich Bean-Columns with Interlayer Slips
Elasticity solution for sandwich beam-columns bonded with non-rigid adhesives is presented. The solution satisfies the equilibrium equations of the face and core elements, the compatibility...

Boundary Element Analysis of Fluid Domain
The boundary element method of analysis is applied to the calculation of hydrodynamic pressures in a reservoir impounded by a gravity dam and subjected to a harmonic ground motion., It...

Residual Undrained Deformation from Cyclic Loading
Residual undrained deformation of anisotropically consolidated soil samples under cyclic loading is investigated. The magnitude of residual deformation is influenced by factors such as...

 

 

 

 

Return to search