Multi-Regression Prediction Of Metal Partition Coefficients Under Various Physical/Chemical Conditions Design Of Experiments As, Cr, Cu, Ni And Zn, Eid A. Alkhatib, Danielle Grunzke, Trey Chabot
Eid A. Alkhatib
The behavior of metals in surface water is complex and their partition coefficients can be impacted by many factors. Organic matter (OM) content in sediments, pH and salinity, are factors that may influence speciation and partitioning of metals. The difficulty in describing the impacts and relationships are that these processes are interconnected with no dominant associations among all. In this study, the partitioning of five metals (As, Cr, Cu, Ni and Zn) under different levels of salinity, pH, and OM content were investigated. A series of factorial design experiments are evaluated in which three levels of OM are tested each ...
Prediction Of Metal Remobilization From Sediments Under Various Physical/ Chemical Conditions “Design Of Experiments Cd, Co And Pb”, Eid A. Alkhatib, Trey Chabot, Danielle Grunzke
Eid A. Alkhatib
The metal partition coefficient Kd (L/kg) is the ratio of sorbed metal concentration on the solid phase m (mg/kg) to the dissolved metal concentration at equilibrium. The behavior of metals in surface water is complex and their partition coefficients can be impacted by many factors. Organic matter (OM) content in sediments, pH and salinity, are factors that may influence speciation and partitioning of metals. In this study, the partitioning coefficient of three metals (Cd, Co and Pb) under different levels of salinity, pH, and OM content were examined. A series of factorial experiments were evaluated in which three ...
Netpoint®, 2017 Construction Engineering & Management, Purdue University
Netpoint®, Purdue Ect Team
ECT Fact Sheets
The vast majority of construction scheduling software uses a combination of spreadsheets and Gantt charts for developing and depicting Critical Path Method (CPM) schedules. While this paradigm works for the expert scheduler, it is not conducive to collaboration, and it is prohibitively difficult for non-scheduling experts to understand.
NetPoint® provides a dynamic, visual interface conducive to touch and gestural input. Activities are drawn directly on a time-scale and may be placed on the same row or arranged automatically using codes or the WBS. Such control of the presentation makes it easier to communicate the plan to any type of audience ...
Fluid Isolator, 2017 Construction Engineering & Management, Purdue University
Fluid Isolator, Purdue Ect Team
ECT Fact Sheets
The reliability of concrete infrastructure is vital to ensuring daily life, as well as commerce, can progress without interruption. From the pavement of interstate highways to the driveways and sidewalks in a local neighborhood, concrete is expensive to install and often even more expensive, and intrusive, when it needs to be replaced. Unfortunately, to maintain functionality in winter climates concrete is heavily exposed to deicing salts. This not only affects the roads, driveways, and sidewalks where salt is applied directly, but many other areas such as parking and residential garages where vehicles (and people) will track salt along with water ...
Impacts Of Climate Change On Streamflow In The Upper Mississippi River Basin: A Regional Climate Model Perspective, Manoj K. Jha, Zaitao Pan, Eugene S. Takle, Roy R. Gu
Impact of climate change on streamflow in the Upper Mississippi River Basin is evaluated by use of a regional climate model (RCM) coupled with a hydrologic model, Soil and Water Assessment Tool (SWAT). The RCM we used resolves, at least partially, some fine-scale dynamical processes that are important contributors to precipitation in this region and that are not well simulated by global models. The SWAT model was calibrated and validated against measured streamflow data using observed weather data and inputs from the U.S. Environmental Protection Agency Better Assessment Science Integrating Point and Nonpoint Sources (BASINS) geographic information systems/database ...
The Impacts Of Climate Change On Stream Flow In The Upper Mississippi River Basin: A Regional Climate Model Perspective, Manoj K. Jha, Zaitao Pan, Eugene S. Takle, Roy R. Gu
We evaluate the impact of climate change on stream flow in the Upper Mississippi River Basin (UMRB) by using a regional climate model (RCM) coupled with a hydrologic model, the Soil and Water Assessment Tool (SWAT). The SWAT model was calibrated and validated against measured stream flow data using observed weather data and inputs from the Environmental Protection Agency’s BASINS (Better Assessment Science Integrating Point and Nonpoint Sources) geographical information/database system. The combined performance of the SWAT and RCM was examined using observed weather data as a lateral boundary condition in the RCM. The SWAT and RCM were ...
Smartvid.Io, 2017 Construction Engineering & Management, Purdue University
Smartvid.Io, Purdue Ect Team
ECT Fact Sheets
The collection, organization, and retrieval of industrial media is a pervasive challenge that is especially glaring for companies in the AEC industry. Construction projects often generate large volumes of pictures & videos from the field for tracking progress and communicating between engineers, contractors, and subcontractors. It is not uncommon for field personnel to capture hundreds of photos per week on any given jobsite.
Smartvid.io is a cloud-based software solution designed for the specific needs of industrial media. The application’s internal deep-learning engines, collectively nicknamed VINNIE (for ‘Very Intelligent Neural Network for Insight and Evaluation’), use speech and image recognition ...
Hillman Composite Beam (Hcb®), 2017 Construction Engineering & Management, Purdue University
Hillman Composite Beam (Hcb®), Purdue Ect Team
ECT Fact Sheets
The Hillman-Composite Beam (HCB®), is an innovative structural member for use in highway and railroad bridges as well as marine facilities. The HCB is essentially a lightweight reinforced concrete beam strengthened and protected by a corrosion-resistant and resilient Fiberglass Reinforced Polymer (FRP) shell.
The beam is comprised of three main components, a concrete arch (compression reinforcement), an FRP bottom flange encapsulating steel strands tying the ends of the arch together (tension reinforcement) and the FRP shell. Galvanized Rebar “shear connectors” are used to make the beam composite with the concrete deck in the same manner as pre-stressed concrete beams.
The Significance Of A High Resolution 2d Hydraulic Model Including Green Infrastructure For Assessment Of Coastal Community Vulnerability And Resilience, Katie M. Miller
Theses and Dissertations
This paper outlines the development of an enhanced hydraulic flood model that uses a fine-scale grid to analyze significant areas of flooding for improved flood predictions and resiliency planning. This study modeled the extent of Atlantic City and Camden, New Jersey. The capabilities of the model were compared to coarser national models, HAZUS-MH and SLOSH, to understand the significance of fine-scale hydraulic modeling. The results illustrated that the HAZUS and SLOSH models showed gaps in some areas and lacked accuracy due to lower resolution. This paper also describes how these developed models show the impacts of severe storms, and the ...
Industrial-Grade Monitoring Solution: Hoistcam, 2017 Construction Engineering & Management, Purdue University
Industrial-Grade Monitoring Solution: Hoistcam, Purdue Ect Team
ECT Fact Sheets
Safety and productivity are top priorities for contractors and industrial operations. Improving either makes a company more profitable and competitive. Technology advancements that can do both are important for every company to consider. HoistCamTM industrial-grade video monitoring solutions can improve employees’ productivity and workplace safety in the construction industries. HoistCam also improves efficiency of operations and reduces job site accidents resulting in substantial cost savings to a contractor.
HoistCam™ is an integrated, wireless video system. The use of HoistCam eliminates blind lifts, blind spots and can share the live video with anyone, anywhere with solid security and easy control ...
Energy-Water Reduction And Wastewater Reclamation In A Fluid Milk Processing Facility, 2017 University of Nebraska-Lincoln
Energy-Water Reduction And Wastewater Reclamation In A Fluid Milk Processing Facility, Carlyrain Adams, Yulie E. Meneses, Bing Wang, Curtis Weller
Dissertations, Theses, & Student Research in Food Science and Technology
The energy-water nexus is the inseparable connection linking water and energy. We are faced with a unique opportunity to co-manage these resources, as conservation of one is directly linked to the conservation of its counterpart. Therefore, immediately facing this critical challenge, will lead to tangible impacts on the water and energy crisis our food system is faced with. Determining the role of water and energy in the food industry has proved to be the starting point for reducing the distance between process productivity and resource efficiency. Therefore, this research focuses on determining opportunities for water-energy optimization and wastewater reduction and ...
Purdue Ect Report - Fourth Quarter 2016, 2017 Construction Engineering & Management, Purdue University
Purdue Ect Report - Fourth Quarter 2016, Purdue Ect Team
ECT Fact Sheets
Fourth Quarter 2016
This is a quarterly report from the Purdue ECT.
Integrated Assessment Of Novel Two-Season Production Systems In Mato Grosso, Brazil, 2017 Universität Hohenheim
Integrated Assessment Of Novel Two-Season Production Systems In Mato Grosso, Brazil, Marcelo Moraes, Affonso Libera, Evgeny Latynskiy, Anna Hampf, José Maria Silveira, Thomas Berger
One of the most significant advantages of growing crops in Mato Grosso (in mid-western Brazil) is that farmers can grow two crops (in some specific cases even three) in the same season. From an economic point of view, on the one hand, this provides a strong comparative advantage. On the other hand, this increases the number of decision variables that a decision making agent has to take into account. The agricultural production planning is complex and dynamic and it needs to consider crop rotation/succession in accordance with annual variability of climatic conditions. We developed a region-specific bio-economic micro-simulation model ...
Bicp Global Bim Study - Lessons For Ireland’S Bim Programme, 2017 Dublin Institute of Technology
Bicp Global Bim Study - Lessons For Ireland’S Bim Programme, Barry Mcauley, Alan Hore, Roger West
The Construction IT Alliance (CitA) has been promoting the benefits of digitisation in the construction and engineering industry in Ireland since its formation back in 2002. Whilst the Alliance has always strived to ensure that its members are exposed to a wide spectrum of contemporary digital tools and processes, the concept of Building Information Modelling (BIM) has dominated the focus of its activities over the past five years.
BIM can be described as a digital tool that facilitates everybody to better understand a building or structure through the use of a digital model which draws on a range of data ...
Road Zipper™, 2017 Construction Engineering & Management, Purdue University
Road Zipper™, Purdue Ect Team
ECT Fact Sheets
Construction work zones are growing in number around the world. The natural aging of existing roadway infrastructure ensures that more and more maintenance and rehabilitation will be required. Work zones, by their very definition, create two major problems that must be addressed in some way: safety and mobility. In the United States, highway work zones are responsible for almost 25% of all non-recurring congestion and 10% of overall congestion. Vehicle accidents are more common in work zones, and traffic congestion through work zones on urban arterials and freeways is often considered to be “unavoidable." To address these issues, ROAD ZIPPER ...
Environmental Implications Of Nanotechnology, 2017 University of Massachusetts Amherst
Environmental Implications Of Nanotechnology, Boris Lau, Joann Mariie Rodríguez
Science and Engineering Saturday Seminars
No abstract provided.
Methods For Incorporating Ecological Impacts With Climate Uncertainty To Support Robust Flood Management Decision-Making, 2017 University of Massachusetts - Amherst
Methods For Incorporating Ecological Impacts With Climate Uncertainty To Support Robust Flood Management Decision-Making, Caitlin M. Spence
Doctoral Dissertations May 2014 - current
Modern and historic flood risk management involves accommodating multiple sources of sources of uncertainty and potential impacts across a broad range of interrelated sectors. Sources of uncertainty that affect planning include internal climate variability, anthropogenic changes such as land use and system performance expectations, and more recently changes in climatology that affect the resources supporting the system. Flood management systems potentially impact human settlements within and beyond the systems’ scope of planning, local weather patterns, and associated ecological systems. Federal guidelines across nations have called for greater consideration of uncertainty and impacts of water resources planning projects, but methods for ...
High Performance Techniques Applied In Partial Differential Equations Library, 2017 College of Saint Benedict/Saint John's University
High Performance Techniques Applied In Partial Differential Equations Library, Shilei Lin
All College Thesis Program
This thesis will explore various Trilinos packages to determine a method for updating the deal.ii library. The deal.ii library specialize in solving partial differential equations by finite element methods. This thesis will begin with introducing some related concepts and the goals of this project, following the methods of achieving those goals by exploring analytical solution of one-dimensional Boussinesq equations and developing of newer prototypes based on Trilinos packages. After demonstrating the reduction of solving time in prototypes, the same methods have been applied to update the deal.ii library. Finally, an example program from the deal.ii library ...
Evaluating Filter Materials For E. Coli Removal From Stormwater, 2017 South Dakota State University
Evaluating Filter Materials For E. Coli Removal From Stormwater, Ghaem Hooshyari
Theses and Dissertations
Stormwater runoff from agricultural and urban areas carries a wide range of pollutants and pathogens that can negatively affect surface water bodies and cause significant risks to the ecosystem and public health. Bacteria is one of the pollutants carried by stormwater, and Escherichia coli (E. coli) is commonly used as a microbial pollution indicator of surface water. The aim of this research was to investigate the removal of E. coli from stormwater using low-cost filter materials. Two industrial byproducts (steel slag and steel chips) and two natural minerals (zeolite and limestone) with three different sizes (0.5-1 mm, 1-2 mm ...
Impact Of Subsurface Drainage On Hydrology For Typical Soil And Weather In Eastern South Dakota, 2017 South Dakota State University
Impact Of Subsurface Drainage On Hydrology For Typical Soil And Weather In Eastern South Dakota, Govinda Karki
Theses and Dissertations
Subsurface drainage in agricultural land changes the field water balance by providing an alternate pathway for subsurface water. Determining the effects of subsurface drainage on downstream hydrology requires quantifying the components of the water balance. A number of studies have looked at the hydrological impacts of subsurface drainage. However, the effects are complex and difficult to generalize. The complex interaction involves the interrelation among variables such as soil type and properties, climate (rainfall and evapotranspiration), and drainage design configuration (drainage intensity and drainage coefficient), which all are local in nature. Additionally, most studies have been conducted in humid climates, whereas ...