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- UWRL (3)
- NDOR (2)
- Cable guardrail (1)
- Composition (1)
- Distribution coefficient (1)
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- Enhanced bioremediation (1)
- Graph drawing (1)
- Groundwater (1)
- Infinite graph theory (1)
- Intersecting roadways (1)
- Low-tension (1)
- Particles (1)
- Phase IV (1)
- Pm10 (1)
- Pm2.5 (1)
- Short-radius guardrail (1)
- Size distribution (1)
- Spectral element method; hp finite element method; Exponential convergence; Jacobi polynomial; Nonlinear elasticity; Message passing interface (1)
- Swine (1)
- TCE (1)
- Terminal (1)
- Vegetable oil (1)
Articles 1 - 7 of 7
Full-Text Articles in Engineering
Impact Of Vegetable Oil On Distribution Of Trichloroethylene In Groundwater During Enhanced Bioremediation, M. Pu, Ryan Dupont, William J. Doucette
Impact Of Vegetable Oil On Distribution Of Trichloroethylene In Groundwater During Enhanced Bioremediation, M. Pu, Ryan Dupont, William J. Doucette
Civil and Environmental Engineering Faculty Publications
Vegetable oils are increasingly being used as long-term carbon donors to stimulate reductive dechlorination of trichloroethylene (TCE). Besides potential enhancement of biodegradation, the addition of vegetables oils may impact TCE fate and distribution within the aquifer by acting as non-aqueous phase liquids (NAPL). Distribution coefficients for TCE between groundwater and four vegetable oils were determined using a slow-stir technique. Log vegetable oil/water distribution coefficients (log Kvw) were found to range from 1.0 to 2.56. TCE/vegetable oil distribution coefficients statistically increased with an increase in oil weathering while the concentration of dissolved organic carbon (DOC) in the water did not change …
A Parallel Spectral Element Method For Dynamic Three-Dimensional Nonlinear Elasticity Problems, S. Dong, Z. Yosibash
A Parallel Spectral Element Method For Dynamic Three-Dimensional Nonlinear Elasticity Problems, S. Dong, Z. Yosibash
PRISM: NNSA Center for Prediction of Reliability, Integrity and Survivability of Microsystems
We present a high-order method employing Jacobi polynomial-based shape functions, as an alternative to the typical Legendre polynomial-based shape functions in solid mechanics, for solving dynamic three-dimensional geometrically nonlinear elasticity problems. We demonstrate that the method has an exponential convergence rate spatially and a second-order accuracy temporally for the four classes of problems of linear/geometrically nonlinear elastostatics/elastodynamics. The method is parallelized through domain decomposition and message passing interface (MPI), and is scaled to over 2000 processors with high parallel performance.
Independent Study On Infinite Graph Theory, Martin Zimmermann
Independent Study On Infinite Graph Theory, Martin Zimmermann
Technical Reports
In this paper we will prove some results about infinite graphs. We show that for every linear order there is a graph with a distinguished vertex such that the edges adjacent to that vertex have the given order in any plane drawing. The other results are concerned with connectivity. We prove a generalization of a characterization of 2-connected graphs and prove that k-connectedness does not imply the existence of finite kconnected subgraphs for k > 2.
Design Evaluation Of A Low-Tension Cable Guardrail End Terminal System, Cody S. Stolle, Karla A. Polivka, Ronald K. Faller, John R. Rohde, Dean L. Sicking, Rebecca A. Hitz, Kirk J. Molacek, John D. Reid
Design Evaluation Of A Low-Tension Cable Guardrail End Terminal System, Cody S. Stolle, Karla A. Polivka, Ronald K. Faller, John R. Rohde, Dean L. Sicking, Rebecca A. Hitz, Kirk J. Molacek, John D. Reid
Nebraska Department of Transportation: Research Reports
No abstract provided.
Generation Of Monthly Precipitation Under Limited Data And Climate Change: An Example From The Upper Blue Nile River Basin, U. Kim, Jagath J. Kaluarachchi, V. Smakhtin
Generation Of Monthly Precipitation Under Limited Data And Climate Change: An Example From The Upper Blue Nile River Basin, U. Kim, Jagath J. Kaluarachchi, V. Smakhtin
Civil and Environmental Engineering Faculty Publications
This work develops a methodology to project the future precipitation in large river basins under limited data and climate change while preserving the historical temporal and spatial characteristics. The computationally simple and reliable conditional generation method (CGM) is presented and applied to generate reliable monthly precipitation data in the upper Blue Nile River Basin of Ethiopia where rain-fed agriculture is prevalent. The results showed that the temporal analysis with the CGM performs better to reproduce the historical long-term characteristics than other methods, and the spatial analysis with the CGM reproduced the historical spatial structure accurately. A 100-year time series analysis …
Particle Composition And Size Distributions In And Around A Deep Pit Swine Operation, Randy S. Martin, P. J. Silva, Kori D. Moore, M. Erupe, V. S. Doshi
Particle Composition And Size Distributions In And Around A Deep Pit Swine Operation, Randy S. Martin, P. J. Silva, Kori D. Moore, M. Erupe, V. S. Doshi
Civil and Environmental Engineering Faculty Publications
The contribution of emissions from agricultural facilities is rapidly becoming a major concern for local and regional air quality. Characterization of particle properties such as physical size distribution and chemical composition can be valuable in understanding the processes contributing to emissions and ultimate fate of particulate matter from agricultural facilities. A measurement campaign was conducted at an Iowa, deep-pit, three-barn swine finishing facility to characterize near-source ambient particulate matter. Size-specific mass concentrations were determined using minivol samplers, with additional size distribution information obtain using optical particle counters. Particulate composition was determined via ion chromatographic analysis of the collected filters. A …
Phase Iv Development Of A Short-Radius Guardrail For Intersecting Roadways, Karla A. Polivka, Cody S. Stolle, Robert W. Bielenberg, Ronald K. Faller, Dean L. Sicking, John R. Rohde, John D. Reid
Phase Iv Development Of A Short-Radius Guardrail For Intersecting Roadways, Karla A. Polivka, Cody S. Stolle, Robert W. Bielenberg, Ronald K. Faller, Dean L. Sicking, John R. Rohde, John D. Reid
Nebraska Department of Transportation: Research Reports
No abstract provided.