Browsing Scholarly Works, Civil and Environmental Engineering by Title
Now showing items 194-213 of 304
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Observations of sesquiterpenes and their oxidation products in central Amazonia during the wet and dry seasons
(European Geophysical Union, 2018-07-23)Biogenic volatile organic compounds (BVOCs) from the Amazon forest region represent the largest source of organic carbon emissions to the atmosphere globally. These BVOC emissions dominantly consist of volatile and ... -
Occupational Safety and Health Concerns in Logging: A Cross-Sectional Assessment in Virginia
(MDPI, 2017-11-15)Increased logging mechanization has helped improve logging safety and health, yet related safety risks and concerns are not well understood. A cross-sectional study was completed among Virginia loggers. Participants n = ... -
Occurrence of Free Amino Acids in the Source Waters of Zhejiang Province, China, and Their Removal and Transformation in Drinking Water Systems
(MDPI, 2019-12-24)Free amino acids (FAAs) are key components of the global nitrogen cycle and important disinfection byproduct (DBP) precursors. The knowledge gap of FAA occurrence in source and engineered water is discussed in this paper. ... -
A One-Dimensional Model for Turbulent Mixing in the Benthic Biolayer of Stream and Coastal Sediments
(2020-12)In this paper, we develop and validate a rigorous modeling framework, based on Duhamel's Theorem, for the unsteady one-dimensional vertical transport of a solute across a flat sediment-water interface (SWI) and through the ... -
One-pot synthesis of high-performance Co/graphene electrocatalysts for glucose fuel cells free of enzymes and precious metals
(The Royal Society of Chemistry, 2015-05-01)A facile recipe has been developed to prepare three-dimensional nanoarchitectures of nitrogen-doped graphene loading Co nanoparticle hybrids (Co/NG). The hybrids show an outstanding electrocatalytic activity for glucose ... -
Opportunistic Premise Plumbing Pathogens: Increasingly Important Pathogens in Drinking Water.
(MDPI, 2015-06-09)Opportunistic premise plumbing pathogens are responsible for a significant number of infections whose origin has been traced to drinking water. These opportunistic pathogens represent an emerging water borne disease problem ... -
An Optimal Constrained Pruning Strategy for Decision Trees
(INFORMS, 2009)This paper is concerned with the optimal constrained pruning of decision trees. We present a novel 0-1 programming model for pruning the tree to minimize some general penalty function based on the resulting leaf nodes, and ... -
Optimizing the performance of a membrane bio-electrochemical reactor using an anion exchange membrane for wastewater treatment
(The Royal Society of Chemistry, 2015-03-05)A membrane bioelectrochemical reactor (MBER) is a system integrating ultrafiltration membranes into microbial fuel cells (MFCs) for energy-efficient wastewater treatment. To improve nitrogen removal, an MBER based on an ... -
Osmotic bioelectrochemical systems
(2013-01-17)A bioelectrochemical system includes an anode, a saline solution chamber, and a cathode. The anode is at least partially positioned within an anode chamber containing an aqueous reaction mixture including one or more organic ... -
Oxygen reduction reaction catalysts used in microbial fuel cells for energy-efficient wastewater treatment: a review
(Royal Soc Chemistry, 2016-09-01) -
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 ...
