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Browsing Samuel Ginn College of Engineering by Title

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Atterburg Limits 
Elton, David; Elton, Dave (2014-02-06)
Atterberg Limits describe the water contents at which clays change behavior. The water content indicating the division between the liquid and plastic state is the liquid limit. The Liquid Limit is determined using a brass ...
AU Smart Cart Senior Design Project Report Fall 2012 
Poole, Brandon; Bennett, Geoffrey; Liner, James; Chumbler, Joshua; Johnson, John; Goyal, Harshit; Roppel, Thaddeus (2017-10-26)
Team 3 consists of six members working together to design and build a fully autonomous shopping cart. The purpose of the cart is to perform as a personal shopping assistant to the user as he/she shops in different environments. ...
Automatically identifying, counting, and describing wild animals in camera-trap images with deep learning 
Norouzzadeh, Mohammad Sadegh; Nguyen, Anh; Kosmala, Margaret; Swanson, Alexandra; Palmer, Meredith S.; Packer, Craig; Clune, Jeff (2020-07-27)
Having accurate, detailed, and up-to-date information about the location and behavior of animals in the wild would improve our ability to study and conserve ecosystems. We investigate the ability to automatically, accurately, ...
A Bayesian Approach to Detect the Firms with Material Weakness in Internal Control 
Simsek, Serhat; Bayraktar, Engin; Ragothaman, Srini; Dag, Ali (2019-08-01)
Capturing of relevant patterns in company’s financial data and the implications on the reporting are important for various financial statement users to identify the triggers of the significant deficiencies and material ...
Bearing Capacity 
Elton, David; Elton, Dave (2014-02-06)
The pressure that a foundation unit can impose onto the supporting earth mass without causing overstressing (or shear failure) is the soil's bearing capacity. The three principal modes of soil failure established by the ...
Categorizing Sedimentary Rocks by Origin 
Elton, David; Elton, Dave (2014-02-06)
Using examples, this video tells students what to look for in order to identify rocks.
Characterization of Plenoptic Imaging Systems and Efficient Volumetric Estimation from Plenoptic Data 
Anglin, Paul; Reeves, Stanley J.; Thurow, Brian S. (2015-01-13)
Plenoptic imaging is a rapidly growing field driven by the ever-declining cost of imaging systems and the promise of image focus, perspective, and depth of field manipulation during post-processing. While plenoptic ...
An efficient auxiliary variable method for quantification of spin density, R2* decay and field inhomogeneity maps in magnetic resonance imaging 
Hu, Chenxi; Reeves, Stanley (2015-04-07)
Quantification of spin density, $R_2^*$ decay and off-resonance frequency maps is very important in some applications of magnetic resonance imaging (MRI). To reconstruct these parameter maps, a time-varying model such as ...
Field‐based robotic phenotyping of sorghum plant architecture using stereo vision 
Bao, Yin; Tang, Lie; Breitzman, Matthew; Salas-Fernandez, Maria; Schnable, Patrick; 0000-0002-3548-1823 (2020-02-24)
Sorghum (Sorghum bicolor) is known as a major feedstock for biofuel production. To improve its biomass yield through genetic research, manually measuring yield component traits (e.g. plant height, stem diameter, leaf angle, ...
Forest restoration as a strategy to mitigate climate impacts on wildfire, vegetation, and water in semiarid forests 
O'Donnell, Frances C.; Flatley, William T.; Springer, Abraham E.; Fulé, Peter Z.; https://orcid.org/0000-0002-5886-8270 (2020-05-18)
Climate change and wildfire are interacting to drive vegetation change and potentially reduce water quantity and quality in the southwestern United States, Forest restoration is a management approach that could mitigate ...
LaTeX seminar 
Reeves, Stanley (2010-06-28)
No Change in the Recent Lunar Impact Flux Required Based on Modeling of Impact Glass Spherule Age Distributions 
Huang, Ya-Huei; Minton, David A.; Zellner, Nicolle E. B.; Hirabayashi, Masatoshi; Richardson, James E.; Fassett, Caleb I. (2020-05-27)
The distributions of Ar-40/Ar-39-derived ages of impact glass spherules in lunar regolith samples show an excess at <500 Ma relative to older ages. It has not been well understood whether this excess of young ages reflects ...
Noble gas abundance and isotope ratios in the atmosphere of Jupiter from the Galileo Probe Mass Spectrometer 
Mahaffy, PR; Niemann, HB; Alpert, A; Atreya, SK; Demick, J.; Donahue, TM; Harpold, DN; Owen, TC (2020-06-30)
The Galileo Probe Mass Spectrometer provided the first data on the noble gas mixing and isotope ratios in the Jovian atmosphere. These measurements and the comparison with solar values constrain models of Jupiter's formation. ...
On the Characterization and Reduction of Ill-Conditioning in Jointly Estimating Proton Density, T2* Decay and the Field Map 
Hu, Chenxi; Reeves, Stanley (2014-02-13)
We employ principal angles as a tool to demonstrate that the complex frequency is the main cause for ill-conditioning of model-based MRI reconstruction. We show that kernels of EPI and spiral trajectories have different ...
The Role of Breccia Lenses in Regolith Generation From the Formation of Small, Simple Craters: Application to the Apollo 15 Landing Site 
Hirabayashi, Masatoshi; Howl, Bryan A.; Fassett, Caleb I.; Soderblom, Jason M.; Minton, David A.; Melosh, H. J.; 0000-0002-1821-5689 (2020-05-28)
Impact cratering is likely a primary agent of regolith generation on airless bodies. Regolith production via impact cratering has long been a key topic of study since the Apollo era. The evolution of regolith due to impact ...
Sea level rise and inundation of island interiors: Assessing impacts of lake formation and evaporation on water resources in arid climates 
Gulley, J.D.; Mayer, A.S.; Martin, J.B.; Bedekar, V. (2020-04-01)
Coasts of many low-lying islands will be inundated should sea level rise by 1 m by 2100 as projected, thereby decreasing water resources through aquifer salinization. A lesser known impact occurs if rising sea level elevates ...
A Solution of Rigid Perfectly Plastic Deep Spherical Indentation based on Slip Line Theory 
Jackson, Robert; Ghaednia, Hamid; Pope, Sara (2015-11-16)
During indentation it is often important to determine the relationship between the average pressure and the yield strength. This work uses slip line theory to determine this relationship for the case of a rigid sphere ...
Structural analysis of asteroid Ryugu 
Hirabayashi, Masatoshi (2019-02-28)
This document describes the input files of ANSYS structural analyses for Ryugu rotating at spin periods of 3.5 hr and 3.75 hr.
Trust region methods for estimation of a complex exponential decay model in MRI with a single-shot or multi-shot trajectory (in review) 
Hu, Chenxi; Reeves, Stanley (2015-05-05)
Joint estimation of spin density, R2* decay and off-resonance frequency maps is very useful in many magnetic resonance imaging (MRI) applications. The standard multi-echo approach can achieve high accuracy but requires a ...
Unconfined Compression Test 
Elton, David; Elton, Dave (2014-02-06)
The unconfined compression test. Collect approcimately 1200g of soil passing through the No. 4 Sieve. Add water and mix soil sample thoroughly. Weigh empty Harvard Miniature Mold and place layer of soil in mold. Compact ...