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Now showing items 11-20 of 25
Investigating Biodegradability of Dissolved Organic Nitrogen in Oligotrophic and Eutrophic Systems
(North Dakota State University, 2014)
Dissolved organic nitrogen (DON) in water and wastewater is a major public concern. In drinking water treatment plants (WTP), DON and biodegradable DON (BDON) may form carcinogenic by-products during disinfection and might ...
Crack-Dependent Response of Structural Steel Members Repaired with CFRP
(North Dakota State University, 2014)
Cracking of the lower flange in steel-girder bridges is a critical consideration because it will influence flexural behavior such as load-carrying capacity. Timely rehabilitation will save long-term repair costs and warrant ...
In Situ Groundwater Remediation using Enricher Reactor-Permeable Reactive Biobarrier
(North Dakota State University, 2012)
Permeable reactive biobarrier (PRBB) is a flow-through zone where microorganisms degrade contaminants in groundwater. Discontinuous presence of contaminants in groundwater causes performance loss of a PRBB in removing the ...
An Integrated System for Road Condition and Weigh-in-Motion Measurements using In-Pavement Strain Sensors
(North Dakota State University, 2016)
The United States has the world’s largest road network with over 4.1 million miles of roads supporting more than 260 million of registered automobiles including around 11 million of heavy trucks. Such a large road network ...
Corrosion Risk Assessment System For Coated Pipeline System
(North Dakota State University, 2018)
Steel is widely used as building material for large-scale structures, such as oil and gas pipelines, due to its high strength-to-weight ratio. However, corrosion attack has been long recognized as one of the major reasons ...
Dynamic Interaction of Vehicle and Bridge Subjected to Prestress Force Loss and Foundation Settlement
(North Dakota State University, 2016)
Plenty of bridges in U.S. are suffering from prestress force loss and foundation settlements. The loss of prestress force in bridge load-carrying members such as girders may lead to the malfunction and even failure of the ...
Parametric Cost Estimating and Risk Analysis of Transportation Tunneling Projects
(North Dakota State University, 2016)
Due to the increased scrutiny of construction costs for infrastructure projects by the
public and legislators, it is becoming increasing important for project developers to prepare
accurate conceptual cost estimates for ...
A Stochastic Bayesian Update and Logistic Growth Mapping of Travel-Time Flow Relationship
(North Dakota State University, 2017)
The travel-time flow relationship is not always increasing in nature, it is very difficult to predict precisely. Traditional method fails to replicate this unique conditions. Until millennium, although various researchers ...
Spatial Scale Dependence of Drought Characteristics and Impact of Drought on Agriculture and Groundwater
(North Dakota State University, 2016)
Drought is a water related natural hazard. It is difficult to characterize drought because of its diffused nature and spatiotemporal variability. However, understanding the variability of drought characteristics such as ...
Fate and Transformation of a Conjugated Natural Hormone 17β-Estradiol-3-Glucuronide in Soil-Water Systems
(North Dakota State University, 2011)
The objectives of the study were to investigate the sorption and degradation of a glucuronide conjugated natural hormone, 17β-estradio1-3-glucuronide (E2-3G), and its estrogenic metabolites in soil-water systems. Radiolabeled ...