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Now showing items 41-50 of 118
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 ...
Calibration of a Handheld X-Ray Fluorescence Device to Detect Chemical Stabilizers in Soil Subgrades
(2018-12)
Chemically stabilized subgrades increase the overall quality of pavements compared to non-treated subgrades. Currently, there is no efficient way to detect chemical stabilizers (CS) in pavement subgrades. Generally, only ...
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 ...
TESTING STRUCTURAL ELEMENTS FOR FREE VIBRATION TO UNDERSTAND THEIR LINEAR DYNAMIC BEHAVIORS
(2018)
Dynamic forces such as strong seismic, wind, and impact loads can cause severe deterioration of structural elements in residential, commercial and other structural systems. In the field of structural health monitoring ...
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 ...
The Effect of the Antibacterial Handsoap Matrix on the Kinetics of Triclosan Dissolution from Sand
(2016-12-16)
Triclosan (5-Chloro-2-(2,4-dichlorophenoxy)phenol) is present in many common household products. Most notably, triclosan, is an active ingredient in disinfecting hand soaps, cosmetics, and dental products because of its ...
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 ...
Assessing Impact of Climate Change on Oklahoma Bridge Deck and Superstructure Deterioration using National Bridge Inventory Data
(2017-05-13)
Bridge deterioration is a prominent problem in the United States. Bridge deck and superstructure elements are often exposed to harsh conditions and their performance is critical in the overall sufficiency of a bridge. Many ...