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Now showing items 11-20 of 47
Assessing risk and potential reuse of hard rock mine drainage passive treatment residual solids
(2021-08)
Ecologically engineered mine drainage passive treatment systems rely on a series of biogeochemical reactions to decrease concentrations of ecotoxic trace metals and have proven to be an effective way to improve water quality ...
Evaluating the Performance of a Nonlinear Dual-Mode Vibration Isolator/Absorber System
(2021)
During the event of an earthquake, motion-sensitive equipment inside a building can be protected from seismic disturbance using a floor isolation system (FIS). Its behaviour is assumed linear when it displaces within the ...
Designing and Characterizing Negative Stiffness Devices for Apparent Weakening and Vertical Isolation
(2020-05)
Nonlinear systems leveraging the effects of negative stiffness can exhibit beneficial qualities for passive seismic mitigation in structures. Such systems can be achieved by placing nonlinear devices displaying negative ...
Effect of fiber content on tensile strength of non-proprietary ultra-high performance concrete
(2020-12-18)
Ultra-high performance concrete (UHPC) is being used to solve challenging concrete structural applications where conventional concrete would otherwise deteriorate and improved structural properties can be utilized. UHPC ...
Evaluation of Phosphate Recovery and Release Performance of Calcium Silicate Hydrate Made From Rice Husk
(2020)
In this study, calcium silicate hydrate was synthesized using silica-rich rice husk for recovering phosphorus from wastewater and reusing it as fertilizer under simulated soil conditions. By controlling pH and inhibiting ...
Ecosystem Structural and Functional Indicators to Evaluate Conservation Easement Success in the Horse Creek Watershed near the Grand Lake o' the Cherokees, Oklahoma
(2022-12-17)
Stream restoration activities in the United States commonly seek to improve aquatic and riparian structure. Traditional assessment methods evaluate ecosystem structure by estimating metrics such as biotic community ...
Optimization of red brick dust-based geopolymers for use in sustainable construction
(2023-12-15)
With the rising carbon dioxide levels affecting climate change, sustainable and eco-friendly alternatives to ordinary portland cement (OPC) are being investigated. To reduce the overall environmental impact, industrial ...
Infrastructure damage due to earthquakes and flooding in the Little River Watershed: a HAZUS investigation
(2023-08-04)
The Socially Sustainable Solutions for Water, Carbon, and Infrastructure Resilience in Oklahoma (S3OK) is a multidisciplinary research project to identify socially sustainable solutions to “wicked” problems within the State ...
Identifying latent diversity, equity, inclusion, and accessibility (DEIA) indicators for multimodal transportation systems
(2023-12-15)
Traditional transportation policies unfairly affect marginalized travelers and under-represented groups, limiting their access to social and economic opportunities and contributing to residential segregation. Even though ...
Assessing the potential for beneficial reuse of passively-treated mine waters for livestock watering and crop irrigation
(2020-12-18)
Passive treatment of mine drainage provides demonstrated water quality improvements and substantial removal of ecotoxic metals via biogeochemical, microbiological, and physical mechanisms. When mine drainage is treated to ...