Browsing Civil and Environmental Engineering by Issue Date
Now showing items 1-20 of 851
-
Implications of Lateral Flow Generation on Land-Surface Scheme Fluxes
(University of Waterloo, 2002)This thesis details the development and calibration of a model created by coupling a land surface simulation model named CLASS with a hydrologic model named WATFLOOD. The resulting model, known as WatCLASS, is able to ... -
A Planning Model for Optimizing Locations of Changeable Message Signs
(University of Waterloo, 2004)Changeable Message Signs (CMS) are commonly utilized by transportation agencies to inform motorists of traffic, roadway, and environmental conditions. They may be used to provide information, such as delay and alternate ... -
Measurement of Ventilation and Drying of Vinyl Siding and Brick Clad Wall Assemblies
(University of Waterloo, 2004)Control of moisture and heat flow through building enclosure assemblies is a critical component of overall building performance. This thesis shows that significant drying of moisture in wall assemblies is possible and ... -
Numerical Simulations of Undrained Granular Media
(University of Waterloo, 2004)The objective of the present study was to develop a fluid flow-coupled distinct element model capable of capturing the undrained behaviour of granular soils by considering fundamental physical mechanisms that involve fluid ... -
Risk-Based Decision Support Model for Planning Emergency Response for Hazardous Materials Road Accidents
(University of Waterloo, 2004)Hazardous Materials (HazMat) are transported throughout Canada in a great number of road shipments. The transportation of HazMat poses special risks for neighboring population and environment. While HazMat accidents ... -
Snow Accumulation in a Distributed Hydrological Model
(University of Waterloo, 2004)The cryosphere is defined as the portions of the earth where water is in solid form. It represents a very important part of the hydrologic cycle, affecting ecological, human and climate systems. A number of component ... -
An investigation of UV disinfection performance under the influence of turbidity & particulates for drinking water applications
(University of Waterloo, 2005)UV disinfection performance was investigated under the influence of representative particle sources, including wastewater particles from secondary effluent in a wastewater treatment plant, river particles from surface ... -
Quantifying the Technical Efficiency of Canadian Paratransit Systems Using Data Envelopment Analysis Method
(University of Waterloo, 2005)Paratransit service operators in Canada are under increasing pressure to improve the operational productivity of their services due to increased demand and tightening financial constraints. To achieve this, Paratransit ... -
The Analysis of Seasonally Varying Flow in a Crystalline Rock Watershed Using an Integrated Surface Water and Groundwater Model
(University of Waterloo, 2005)Researchers, explorers, and philosophers have dedicated many lifetimes attempting to discover, document, and quantify the vast physical processes and interactions occurring in nature. Our understanding of physical ... -
Sustainable Drinking Water Treatment for Small Communities Using Multistage Slow Sand Filtration
(University of Waterloo, 2005)Slow sand filtration is a proven and sustainable technology for drinking water treatment in small communities. The process, however, is sensitive to lower water temperatures that can lead to decreased biological treatment, ... -
Treatment of Arsenic Contaminated Groundwater using Oxidation and Membrane Filtration
(University of Waterloo, 2005)Arsenic is a known carcinogen, causing cancers of the skin, lungs, bladder and kidney. Current research suggests that drinking water is the most common pathway for long-term low dose exposure. Arsenic contaminated ... -
A Mathematical Model for Winter Maintenance Operations Management
(University of Waterloo, 2005)Scheduling of winter maintenance operations such as plowing or salting is a difficult and complex problem. Proper selection and timing of such operations is critical to their effectiveness, however scheduling decisions ... -
Disinfection By-Product Formation in Drinking Water Treated with Chlorine Following UV Photolysis & UV/H<sub>2</sub>O<sub>2</sub>
(University of Waterloo, 2005)ABSTRACT As far back as the early 1900?s when it was discovered that water could be a mode of transmitting diseases, chlorine was used to disinfect water. In the 1970?s, the formation of disinfection by-products ... -
Mould Resistance of Full Scale Wood Frame Wall Assemblies
(University of Waterloo, 2006)The primary objective of this study was to investigate mould growth resistance of different types of wood products which include the sheathing and framing within full scale wall assemblies. Secondary objectives were to ... -
Boundary Integral Equation Method in Elasticity with Microstructure
(University of Waterloo, 2006)Problems involving mechanical behavior of materials with microstructure are receiving an increasing amount of attention in the literature. First of all, it can be attributed to the fact that a number of recent experiments ... -
Hydraulic Performance of the Seepage Collection Ditches at the Albian Sands Muskeg River Mine
(University of Waterloo, 2006)The tailings pond at the Muskeg River Mine is a large structure with a 11 km-long ring dyke that contains process affected water (PAW) and tailings sand. The dyke is made of permeable tailings sand and therefore it is ... -
Study of the effect of lateral inhomogeneities on the propagation of Rayleigh waves in an elastic medium
(University of Waterloo, 2006)The use of geophysical testing methods has considerable potential to be a cost effective and accurate technique to assess near-surface soil conditions. Multi channel analysis of surface waves (MASW) test is a geophysical ... -
An Evaluation of the Safety and Operational Impacts of a Candidate Variable Speed Limit Control Strategy on an Urban Freeway
(University of Waterloo, 2006)Variable Speed Limit Sign (VSLS) systems enable transportation managers to dynamically change the posted speed limit in response to prevailing traffic and/or weather conditions. VSLS are thought to improve safety and ... -
Evaluating the Effects of Grain Size and Divalent Cation Concentration on the Attenuation of Viruses and Microspheres through Crushed Silica Sand
(University of Waterloo, 2006)Over the last decade in North America, an increasing number of microbiological drinking water regulations have been used to manage groundwater resources that are potentially influenced by surface water. Regulations such ... -
Interaction of Chemical Oxidants with Aquifer Materials
(University of Waterloo, 2006)In situ chemical oxidation (ISCO) is a leading-edge technology for soil and groundwater remediation, and involves injecting a chemical oxidant (e. g. , permanganate, hydrogen peroxide, or persulfate) into the subsurface ...