Search
Now showing items 71-80 of 195
Evaluation of resilient moduli and layer coefficients of aggregate materials for AASHTO flexible pavement design.
(1998)
Layer coefficients were calculated for use in the design of flexible pavements by using the AASHTO design methodology. Multiple linear regression models were developed for predicting the layer coefficients of the two ...
Application of Traffic Speed Deflectometer and AI-Based Models for Structural Calibration and Pavement Management Enhancement
(2023)
Currently, different methods are used for the evaluation of pavement conditions including the surface, base, subbase, and subgrade. Among these, Falling Weight Deflectometer (FWD) and/or Fast Falling Weight Deflectometer ...
A framework-based finite element approach for solving large deformation problems in multi-phase porous media.
(2005)
The performance of the uniform gradient element formulation is studied by simulating settlement of a footing and dynamic behavior of a saturated clay embankment and a level ground. Significant hourglassing is seen for the ...
A practicing engineer's perspective on nonlinear finite element analysis techniques for reinforced concrete structures.
(2004)
The research demonstrates the continued progress in finite element analysis of reinforced concrete structures. Increasingly, structural engineers will use this method in their designs, and in research into materials and systems.
Modeling Rates and Energetics of Anaerobic Hydrocarbon Biodegradation
(2012)
Hydrocarbons are ubiquitous in the environment, originating from both natural and refined sources and are an important class of compounds because of their role in the world's energy requirements, their toxicity, and their ...
AN INVESTIGATION OF SUSTAINABLE FLUORIDE WATER TREATMENT TECHNOLOGIES WITH A FOCUS ON ETHIOPIA
(2014)
Human consumption of unsafe drinking water from an unimproved source is a global issue affecting approximately 748 million people worldwide. While this number has been decreasing in recent years, an additional 1.2 billion ...
A qualitative model for designing and implementing effluent trading programs.
(1999)
Effluent trading programs (ETPs) have been proposed as cost-effective alternatives to command-and-control regulations for surface water quality management. In addition to reducing environmental compliance costs, ETPs may ...
Land application of sewage sludge in agricultural land in Nigeria with special reference to Enugu.
(1982)
Comparison of the costs of producing some Nigerian agricultural crops by using sewage sludge and commercial fertilizer showed that sewage sludge is 14 and 33 times less expensive than commercial fertilizer using sludge ...