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The Introduction of Crack Opening Stress Modeling into Strain-Life and Small Crack Growth Fatigue Analysis
(University of Waterloo, 2011-01-17)
The work in this thesis is concerned with the mechanics of the initiation and growth of small fatigue cracks from notches under service load histories. Fatigue life estimates for components subjected to variable amplitude ...
Enhancement of Modeling Phased Anaerobic Digestion Systems through Investigation of Their Microbial Ecology and Biological Activity
(University of Waterloo, 2012-01-25)
Anaerobic digestion (AD) is widely used in wastewater treatment plants for stabilisation of primary and waste activated sludges. Increasingly energy prices as well as stringent environmental and public health regulations ...
Improvement to Highway Safety through Network Level Friction Testing and Cost Effective Pavement Maintenance
(University of Waterloo, 2010-05-18)
Pavements encompass a significant component of the total civil infrastructure investment. In Ontario, the Ministry of Transportation (MTO) is responsible for the maintenance and construction of approximately 39,000 ...
Characterization of Pretreatment Impacts on Properties of Waste Activated Sludge and Digestibility
(University of Waterloo, 2010-02-17)
Technologies for pretreatment of waste activated sludges (WAS) prior to digestion are of
increasing interest to wastewater treatment utilities because of their promise for improving
sludge digestibility and reducing the ...
Progressive-Failure Analysis of Steel Building Structures under Abnormal Loads
(University of Waterloo, 2007-04-18)
Engineered structures are designed to resist all expected loadings without failure. However, structural failures do occasionally occur due to inadequate design and construction, especially for extreme and abnormal loads. ...
Integrating Observational and Microscopic Simulation Models for Traffic Safety Analysis
(University of Waterloo, 2014-08-19)
In safety analysis, two questions typically need to be addressed: 1) how to identify unsafe sites for priority intervention? and 2) how to determine the effectiveness of treatments introduced at these and other sites? ...
Finite Element Model of a Two-cell Contact and Separation Experiment
(University of Waterloo, 2009-01-08)
Cell-cell adhesion is important to understanding the mechanics of cell-cell interactions. A recent study of cell adhesion was conducted by others using an Atomic Force Microscopy to measure forces when two cells are brought ...
A Field Study of Airflow in a High-Rise Multi-Unit Residential Building
(University of Waterloo, 2014-01-23)
Airflow into, out of, and within buildings is fundamental to their design and operation as it can affect occupant health and comfort, building durability, and energy consumption. This thesis works to develop the understanding ...
Microscopic Overtaking Model to Simulate Two-lane Highway Traffic Operation and Safety Performance
(University of Waterloo, 2013-11-14)
Rural two-lane highways make up a large portion of road networks around the world. The special geometric and traffic attributes of these highways pose special challenges to safety and traffic operation. In recent years, ...
Engineered Fibre-reinforced Concrete Systems for Bridge Deck Link Slab Applications
(University of Waterloo, 2014-01-24)
Rehabilitation and maintenance of the aging transportation infrastructure are of major concern in the Province of Ontario. A large portion of this work is related to the durability of highway bridges around the province. ...