Browsing Civil engineering by Title
Now showing items 1-20 of 413
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A Connected Vehicle Based Coordinated Adaptive Navigation System
Real-time data communication and analysis are important to support many smart transportation applications. The connected vehicle (CV) technology leads to a system in which vehicles can communicate with other vehicles, ... -
A Framework for Regional Scale Quantitative Landslide Risk Analysis
Landslides are among the most common and damaging natural hazards on earth. Policy makers, land use planners, and community members need to know not only when and where landslides are likely to occur (hazard) but also the ... -
A Framework for Understanding and Addressing Bias and Sparsity in Mobile Location-Based Traffic Data
Traffic data derived from Global Positioning System (GPS) traces of individual travelers is achieving widespread adoption in transportation engineering and planning, practice, and research. Currently, the majority of such ... -
A General Methodology for Inferring Failure Propagation Process from Post-disaster Disruptions Data
Cascading failures, where failures propagate from an initially small portion of a system to a much larger portion or even the entire system, are ubiquitous phenomenon in a number of natural, social and technical systems, ... -
A Machine Learning and Computer Vision Framework for Damage Characterization and Structural Behavior Prediction
This work focuses on using computer vision to relate surface (and limited subsurface) damage observations to quantitative damage and load levels in structural components. In particular, image processing and machine learning ... -
A New Snow Depth Measurement Technique using ICESat-2 SlideRule in the Western U.S.
Snow depth is highly variable across watersheds, yet most snow depth data in the Western U.S. come from sparse point measurements. The water resources community is in need of more spatially representative snow depth data ... -
A Novel Framework for Real-time Traffic Flow Parameter Estimation from Aerial Videos
Unmanned aerial vehicles (UAVs) are gaining popularity in traffic monitoring due to their low cost, high flexibility, and wide view range. Traffic flow parameters such as speed, density, and volume extracted from UAV-based ... -
A Pilot Data System and Analytical Framework for Tribal and Rural Community Traffic Safety Equity Assessments
There is a systemic inequity in terms of traffic safety between rural and urban areas throughout the nation. Rural, isolated, tribal, and indigenous communities do not often have the funding access to address transportation ... -
A Pre-Tensioned, Rocking Bridge System for Accelerated Construction and Enhanced Seismic Performance
A new bridge bent system has been developed to reduce on-site construction time, minimize residual displacements even after a large earthquake, and reduce seismic damage in comparison with conventional cast-in-place ... -
A RC Slab to CFT Column Connection for Improved Seismic Behavior of Multi-Story Buildings
Slab-column systems are commonly used as the gravity system of reinforced concrete buildings in high seismic regions. These systems are economical and typically constructed using stud rails at the reinforcement for the ... -
A Rhizosphere-Scale Investigation of Root Effects on Wetland Methane Dynamics
The largest natural source of CH4 to the atmosphere is wetlands, which produce 20% to 50% of total global emissions. Vascular plants play a key role regulating wetland CH4 emissions through multiple mechanisms. They often ... -
A Scalable Open-source Web-analytic Framework to Improve Satellite-based Operational Water Management in Developing Countries
Satellite based observations are becoming more widespread for operational and decision making activities in water resources due to their near real-time availability as well as minimization of difficulties related to ground ... -
A Study of Removal Techniques for Arsenic Species in Landfill Gas Condensate
Arsenic is a highly toxic contaminant of concern to many entities, notably for a landfill utility within King County (KC), where its high concentrations have been observed in landfill gas (LFG) condensate, a byproduct of ... -
A Study of Variable Friction Base Isolation Systems
Variable Friction Systems (VFS) have been recently proposed as possible alternatives to traditional base isolation devices. The main benefit of VFS over other systems lies in their superior energy absorption properties ... -
Adaptive or absent: A critical review of building system resilience in the LEED rating system
With time spent indoors dominating the lives of individuals across developed nations particularly within Europe, North America, and Australia, protecting indoor environmental quality becomes critical to protecting human ... -
Adaptive Pitch Composite Blades for Axial-Flow Marine Hydrokinetic Turbines
Marine hydrokinetic (MHK) turbines are quickly becoming a viable and valuable method of generating renewable energy from ocean, tidal, and river currents. Modern MHK turbine blades are typically constructed from fiber ... -
Adaptive radiation of marine ammonia-oxidizing archaea
(2014-04-30)We report here on the basic physiology of two new isolates of marine ammonia-oxidizing archaea (AOA) and their relationship to Nitrosopumilus maritimus, the first isolated representative of the marine AOA. Although all ... -
Adaptive Reservoir Operation in the Transboundary Nile River Basin
The Nile River Basin (NRB) is home to more than 200 million people sharing the water resources for agriculture, industry, municipal uses, in-stream navigation, and hydropower generation. A central and existential water ... -
Adaptive Sampling Methods for Vehicle Trajectory Data
The ubiquitous use of smartphones and the emergence of new technologies such as ridesourcing and connected/automated vehicles provide new opportunities for mobile sensors in traffic monitoring and data collection. To make ... -
Advancing Precipitation and Transboundary Flood Forecasting in Monsoon Climates
About a billion people are directly or indirectly affected by annual monsoon flooding in South and Southeast Asia. Skillful flood forecasting is crucial in this densely populated part of the world, where most of the countries ...