Research Materials (Civil & Environmental Engineering)

2016-01-01

Mojtaba Rahimi, Dave Chan, Alireza Nouri, Rouzbeh Rasouli

Sand response changes with intensity of cementation bonds between sand grains, magnitude of intermediate principal stress and with fabric anisotropy. First a critical state bounding surface plasticity model is presented in this paper. In this constitutive model, the loading surface always...

2019-11-11

ArianVelayati, Alireza Nouri

Steam assisted gravity drainage (SAGD) is a thermal hydrocarbon recovery method by which extra-heavy oil is produced through steam injection and bitumen heating. The presence of emulsions in the produced fluid has been detected from the very beginning of SAGD deployment. However, this...

2018-01-01

Fraser Mah, Travis Hnidan, Evan Davies, Ania Ulrich

Bacteriological contamination of drinking water wells poses a challenge to many rural areas of First Nations communities in Alberta that rely on wells as the primary drinking water source for large proportions of their populations. Here we reviewed available historical data for the Samson Cree...

2023-07-19

Thayanne G. M. Ciriaco, Syeda N. Zehra, Veronica Wambura, Stephen D. Wong

Extreme weather events and other hazardous events often require a range of strategies to safely shelter people, distribute resources, and start recovery efforts. This is particularly important for underserved populations who often lack reliable access to shelters, transportation, and social...

2019-01-01

Goerz, Stefan J.B.

There is a unique technology called Direct Pipe InstallationTM (DPI) developed by Herrenknecht Tunnelling Systems (Herrenknecht) which is becoming more a prominent construction method in the pipeline crossing industry. This construction technique is completed by connecting a micro tunnel boring...

2020-08-01

Jesus David Montero Pallares, Chenxi Wang, Mohammad Haftani, Alireza Nouri

Wire-wrapped screens (WWSs) are one of the most-commonly used devices by steam-assisted gravity drainage (SAGD) operators because of the capacity to control plugging and improve flow performance. WWSs offer high open-to-flow area (OFA) (6 to 18%) that allow a high release of fines, hence, less...

2016-01-01

Gargoum, Suliman and El Basyouny, Karim

Road safety is influenced by many factors; these factors include characteristics of the road, climate, traffic and, most importantly, vehicle speeds. Previous research shows that increases in speed are typically associated with an increased collision risk. Moreover, previous studies have also...

2019-01-01

Seresht, Nima Gerami, Fayek, Aminah Robinson

Purpose – Due to its key role in the successful delivery of construction projects, construction productivity is one of the most researched topics in construction domain. While the majority of previous research is focused on the productivity of labor-intensive activities, there is a lack of...

2017-01-01

Huixin Zhang; Jeffrey Seaman; Yinan Wang; Hongbo Zeng; Ravin Narain; Ania Ulrich; Yang Liu

In this study, a surrogate of Cryptosporidium parvum oocysts was prepared using Cryptosporidium-sized carboxylated polystyrene microspheres and an alpha-1-acid glycoprotein (AGP). The zeta potential of the modified surrogates was found to be similar to that of viable Cryptosporidium parvum. These...

2011-05-23

Barsom and Rolfe