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Articles 1 - 8 of 8
Full-Text Articles in Engineering
Experimental Validation Of A Numerical Forward Model For Tunnel Detection Using Cross-Borehole Radar, Arvin Farid, Jose A. Martinez-Lorenzo, Akram N. Alshawabkeh, Carey M. Rappaport
Experimental Validation Of A Numerical Forward Model For Tunnel Detection Using Cross-Borehole Radar, Arvin Farid, Jose A. Martinez-Lorenzo, Akram N. Alshawabkeh, Carey M. Rappaport
Civil Engineering Faculty Publications and Presentations
The goal of this research is to develop an experimentally validated twodimensional (2D) finite difference frequency domain (FDFD) numerical forward model to study the potential of radar-based tunnel detection. Tunnel detection has become a subject of interest to the nation due to the use of tunnels by illegal immigrants, smugglers, prisoners, assailants, and terrorists. These concerns call for research to nondestructively detect, localize, and monitor tunnels. Nondestructive detection requires robust image reconstruction and inverse models, which in turn need robust forward models. Cross-Well Radar (CWR) modality is used for experimentation to avoid soil-air interface roughness. CWR is not a versatile …
How Rapidly Should Developing Countries Implement Intelligent Transportation Systems (Its) To Solve The Growing Urban Traffic Congestion Problem?, Mandar Khanal
Civil Engineering Faculty Publications and Presentations
Many newly developing countries are growing rapidly. One example is India, currently the second most populous country in the world. According to the Indian Ministry of Urban Development, from 1981 to 2001, the population in six major Indian cities increased twofold while motor vehicles increased eightfold. Such rapid growth in vehicles without a comparable growth in transportation infrastructure leads to increasing traffic congestion. Cities in India are already considered congested today, and are going to be even more congested in the coming years since the rate of urbanization in India in 2006 was only 29% and is expected to grow …
Near Surface Hydrometeorology For Sustainable Water Management, V. Sridhar, W. T. A. Jaksa
Near Surface Hydrometeorology For Sustainable Water Management, V. Sridhar, W. T. A. Jaksa
Civil Engineering Faculty Publications and Presentations
Due to strong interactions between the land and atmosphere and the resulting feedbacks as altered by the anthropogenic changes, it is critical to quantify the surface fluxes and boundary layer properties that has direct implications on the regional evolution of hydrometeorology. This study evaluates the impact of irrigation using the Weather Research and Forecasting (WRF) numerical weather prediction (NWP) model in the Snake River Basin in Idaho. Our simulation extends for the period in the growing season and compares the control and irrigation runs to assess the irrigation induced cooling on the surface energy balance. Understanding this near surface cooling …
Camp Rainbow Gold: New Design, Andrew Campbell, Marcus Rasulo, Alex Nelson, Jill Pruett, Jarom Gray
Camp Rainbow Gold: New Design, Andrew Campbell, Marcus Rasulo, Alex Nelson, Jill Pruett, Jarom Gray
College of Engineering Poster Presentations
Camp Rainbow Gold is a summer camp for children diagnosed with cancer. The camp has experienced substantial growth since its inception, reaching the capacity of its current site, and is exploring alternative sites. Awesome Engineering was tasked to design a new resident camp facility to meet the needs of a growing Camp Rainbow Gold as a Civil Engineering Design project. We were given a 77-acre site located two miles south of Bellevue, Idaho, and a list of facility requirements for the camp. Our job is to design the facilities as well as investigate the required permits and codes. We will …
Impacts Of Climate Change On Hydrology And Water Resources In The Boise And Spokane River Basins, Xin Jin, Venkataramana Sridhar
Impacts Of Climate Change On Hydrology And Water Resources In The Boise And Spokane River Basins, Xin Jin, Venkataramana Sridhar
Civil Engineering Faculty Publications and Presentations
In the Pacific Northwest, warming climate has resulted in a lengthened growing season, declining snowpack, and earlier timing of spring runoff. This study characterizes the impact of climate change in two basins in Idaho, the Spokane River and the Boise River basins. We simulated the basin-scale hydrology by coupling the downscaled precipitation and temperature outputs from a suite of global climate models and the Soil and Water Assessment Tool (SWAT), between 2010 and 2060 and assess the impacts of climate change on water resources in the region. For the Boise River basin, changes in precipitation ranged from −3.8 to 36%. …
Interaction Between Electromagnetic Waves And Transport In Saturated Media, Mahsa Azad, Harlan Sangrey, Arvin Farid, Jim Browning, Elisa Barney Smith
Interaction Between Electromagnetic Waves And Transport In Saturated Media, Mahsa Azad, Harlan Sangrey, Arvin Farid, Jim Browning, Elisa Barney Smith
Civil Engineering Faculty Publications and Presentations
Air sparging is one of the most popular remediation technologies. However, it is limited to a small radius of influence (ROI) surrounding the air injection well. Hence, there have been several efforts to improve its effectiveness. To study the possibility of improving the effectivity of air sparging electromagnetic (EM) waves, an easily visible analogous problem (dye transport in water) is studied in this paper. In order to quantify the effects of EM stimulation on flow of an inert, nonreactive dye in water, EM-stimulated and unstipulated dye transport experiments tests were performed and compared. To quantify this interaction, both dye transport …
Predict The Service Life Of Pavement: Evaluate Moisture Sensitivity And Oxidative Aging Of Asphalt, Yang Lu
Predict The Service Life Of Pavement: Evaluate Moisture Sensitivity And Oxidative Aging Of Asphalt, Yang Lu
Yang Lu
Pavements are subject to different stresses during their service life. Correctly predicting the service life provides decisive information to pavement design and rehabilitation. A properly designed pavement material will perform adequately during its design life, and normally the distresses will not exceed the allowable limits. However, premature pavement failure may often appear due to several degradation factors. Moisture sensitivity and asphalt aging properties are two main factors that contribute to the pavement service life reduction. In this editorial, the author will give some comments on the current research status about these two phenomena.
Modeling Groundwater Levels On The Calera Aquifer Region In Central Mexico Using Modflow, Jairo E. Hernández, Prasanna H. Gowda, Terry A. Howell, Jean L. Steiner, Francisco Mojarro, Ernesto P. Núñez, José R. Avila
Modeling Groundwater Levels On The Calera Aquifer Region In Central Mexico Using Modflow, Jairo E. Hernández, Prasanna H. Gowda, Terry A. Howell, Jean L. Steiner, Francisco Mojarro, Ernesto P. Núñez, José R. Avila
Civil Engineering Faculty Publications and Presentations
A conceptual model for the Calera Aquifer has been created to represent the aquifer system beneath the Calera Aquifer Region (CAR) in the State of Zacatecas, Mexico. The CAR area was uniformly partitioned into a 500 X 500 m grid generating a high resolution model that represented the natural boundaries of the aquifer. A computer model was calibrated and validated to verify output from the model corresponding to situations that matched the historical aquifer performance. Predicted groundwater levels were compared with measured data collected from nine observation wells between 1954 and 2004 to evaluate model performance. The main objective of …