Search
Now showing items 21-30 of 54
Shake table testing of scaled rammed earth models
(2008)
The ancient method of rammed earth construction has been used in various parts of the globe, including Central and South America, which experience high seismic activity. Although some studies have been done on rammed earth, ...
SORPTION AND RELEASE OF NICKEL AND ZINC USING A MIXED ALGAE COMMUNITY COLLECTED FROM A MINE DRAINAGE PASSIVE TREATMENT SYSTEM
(2017-05)
Mine water from upwellings in Commerce Oklahoma is treated by the Mayer Ranch Passive Treatment System (MRPTS) to remove contaminants. The last treatment section of MRPTS is referred to as the polishing pond (also known ...
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 ...
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 ...
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 ...
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 ...
Development Length of 0.6 in. Prestressing Strands in Precast, Prestressed Calcium Sulfoaluminate Cement Concrete
(2016-12-16)
Calcium sulfoaluminate cement is a very rapid setting, hydraulic cement that releases
approximately half as much carbon dioxide during production as conventional portland
cement. Calcium sulfoaluminate cement produces ...
QUANTIFYING HYDRAULIC CONDUCTIVITY IN MINE DRAINAGE PASSIVE TREATMENT SYSTEM VERTICAL FLOW BIOREACTORS
(2016-12)
Heavy industrial mining has occurred in the United States for more than 100 years, and in many cases, has led to large-scale environmental degradation, especially from historical operations where mining occurred prior to ...
EVALUATION OF STORMWATER TREATMENT BY VARIOUS REACTIVE MEDIA FOR BIORETENTION CELL DESIGN CONSIDERATIONS
(2018-05)
Bioretention cells (BRC) can be effective at filtering particulate pollutants from stormwater runoff, but substantial removal of the dissolved pollutant fraction is challenging. Various reactive treatment media for BRCs ...
Development and implementation of a wetlands volunteer monitoring pilot program for Oklahoma
(2000)
Due to limited public and private manpower,citizens have become valuable tools for collecting environmental data. Currently over 700 volunteer environmental monitoring programs in the United States are actively collecting ...