Browsing Scholarly Works, Civil and Environmental Engineering by Title
Now showing items 204-223 of 304
-
Packing Characteristics of Aggregate with Consideration of Particle size and Morphology
(MDPI, 2019-02-28)The packing characteristics of aggregates are very important for aggregate blend design, which is closely related to the performance of mixtures. In this study, an indoor packing experiment was designed to investigate the ... -
Parametric Computational Study on Butterfly-Shaped Hysteretic Dampers
(2019)Structural steel plates oriented to resist shear loading can be used as hysteretic dampers in seismic force resisting systems. Some steel plate hysteretic dampers have engineered cut-outs leaving shear links that exhibit ... -
Patterns and Limitations of Urban Human Mobility Resilience under the Influence of Multiple Types of Natural Disaster
(Public Library of Science, 2016-01-28)Natural disasters pose serious threats to large urban areas, therefore understanding and predicting human movements is critical for evaluating a population’s vulnerability and resilience and developing plans for disaster ... -
pH-Triggered Molecular Alignment for Reproducible SERS Detection via an AuNP/Nanocellulose Platform
(Nature, 2015-12-11)The low affinity of neutral and hydrophobic molecules towards noble metal surfaces hinders their detection by surface-enhanced Raman spectroscopy (SERS). Herein, we present a method to enhance gold nanoparticle (AuNP) ... -
Plasmonic colorimetric and SERS sensors for environmental analysis
(The Royal Society of Chemistry, 2015-03-10)The potential for water pollution outbreaks requires the development of rapid, yet simple detection methods for water quality monitoring. Plasmonic nanostructures such as gold (AuNPs) and silver (AgNPs) nanoparticles are ... -
Pollution Transport Patterns Obtained Through Generalized Lagrangian Coherent Structures
(MDPI, 2020-02-06)Identifying atmospheric transport pathways is important to understand the effects of pollutants on weather, climate, and human health. The atmospheric wind field is variable in space and time and contains complex patterns ... -
Precipitation Estimation Methods in Continuous, Distributed Urban Hydrologic Modeling
(MDPI, 2019-06-28)Quantitative precipitation estimation (QPE) remains a key area of uncertainty in hydrological modeling and prediction, particularly in small, urban watersheds, which respond rapidly to precipitation and can experience ... -
Precise control of iron activating persulfate by current generation in an electrochemical membrane reactor
(Elsevier, 2019-07-26)Activated persulfate (PS) oxidation is promising for contaminant removal but a lack of controllable activation can lead to a loss of reagents and thus low contamination degradation. Herein, we have proposed and investigated ... -
A Preliminary Study on the IoT-Based Pavement Monitoring Platform Based on the Piezoelectric-Cantilever-Beam Powered Sensor
(Hindawi, 2017-06-07)Green and sustainable power supply for sensors in pavement monitoring system has attracted attentions of civil engineers recently. In this paper, the piezoelectric energy harvesting technology is used to provide the power ... -
Preparation and evaluation of nanocellulose-gold nanoparticle nanocomposites for SERS applications
(The Royal Society of Chemistry, 2015-06-09)Nanocellulose is of research interest due to its extraordinary optical, thermal, and mechanical properties. The incorporation of guest nanoparticles into nanocellulose substrates enables production of novel nanocomposites ... -
Prevalence and Characterization of Salmonella Present during Veal Harvest
(2019-05)Beef and veal products have been vehicles implicated in the transmission of Salmonella enterica, a gastroenteritis-causing bacteria. Recent regulatory samples collected from veal have indicated bob veal, or calves harvested ... -
Probabilistic seismic assessment of a mid-rise eccentrically braced steel frame equipped with butterfly-shaped dampers
(2020-09)While modern code-conforming steel buildings can withstand seismic events without collapse through substantial inelastic action, the damages to structural members limit the building’s post-earthquake functionality and ... -
Probabilistic Seismic Demand Analysis of a Bridge with Unbonded, Post-Tensioned, Concrete-Filled, Fiber-Reinforced Polymer Tube Columns
(MDPI, 2019-03-18)Ground motions at sites close to a fault are sometimes affected by forward directivity, where the rupture energy arrives at the site in a form of a very short duration pulse. These pulses impose a heavy demand on structures ... -
Probiotics and virulent human rotavirus modulate the transplanted human gut microbiota in gnotobiotic pigs
(2014-09-09)We generated a neonatal pig model with human infant gut microbiota (HGM) to study the effect of a probiotic on the composition of the transplanted microbiota following rotavirus vaccination and challenge. All the ... -
Protein-aided formation of triangular silver nanoprisms with enhanced SERS performance
(Royal Society of Chemistry, 2016-05-10)In this work, we present a modified seed-mediated synthetic strategy for the growth of silver nanoprisms with low shape polydispersity, narrow size distribution and tailored plasmonic absorbance. During the seed nucleation ... -
Quantifying Human Mobility Perturbation and Resilience in Hurricane Sandy
(Public Library of Science, 2014-11-19)Human mobility is influenced by environmental change and natural disasters. Researchers have used trip distance distribution, radius of gyration of movements, and individuals' visited locations to understand and capture ... -
Quantifying Hydrological Impacts of Climate Change Uncertainties on a Watershed in Northern Virginia
(2019-12)Forecasted changes to climate were used to model variations in the streamflow characteristics of a northern Virginia catchment. Two emission scenarios were applied from international climate projections along with four ... -
Quantitative Spatio-Temporal Characterization of Scour at the Base of a Cylinder
(MDPI, 2017-03-20)The measurement of the morphologic characteristics of evolving sediment beds around hydraulic structures is crucial for the understanding of the physical processes that drive scour. Although there has been significant ...