Engineering Highlights

Total Listing: 30 (Listed by the order of record adding time, Descending)

( 1 )

Recorded at: 8/14/2019 back to top
Title Multiple Sampling Photodiode Readout That Overcomes ADC Resolution Limit.
Citation 2018 IEEE Photonics Conference (IPC). 2018, doi: 10.1109/IPCon.2018.8527180. Koerner LJ, Johnson SM, Manke LS. University of St. Thomas
Description We present a light detection system (for point-of-care diagnostics) consisting of a multiple-sampling readout that forgoes the resolution limit set by a low-cost microcontroller ADC. Experimental measurements demonstrate a >5 * 106 input range and a noise floor of <210 fA.
Faculty Lucas Koerner is assistant professor of electrical and computer engineering at University of St. Thomas (UST).
Student Savannah M. Johnson is a third-year UST mechanical engineering major, electrical engineering minor, and completed work on this project in the spring 2018 semester. As a third-year UST mechanical engineering major, business minor, Lucas S. Manke completed work on this project during the spring 2018 semester. He will graduate in 2019.
Funding This research was supported by a UROP summer grant.

( 2 )

Recorded at: 7/24/2017 back to top
Title Using Simulations and Computational Analyses to Study a Frequency-Modulated Continuous-Wave Radar
Citation International Journal of Interdisciplinary Telecommunications and Networking, 2017; 1. doi: 10.4018/ijitn.2017010104. Luttamaguzi J, Eslami A, Brooks DM, Sheybani E, Javidi G, Gabriel PM. NASA Goddard Space Center
Description This paper describes a method for simulating Frequency-Modulated Continuous-Wave (FMCW) radar. FMCW radar system simulations are an example of a real-world application, invested in rich mathematical/physical content that exercise these competencies. Unlike conventional radars that operate in the time domain, FMCW radars operate in the frequency domain. Spectral and phase analyses are required to infer range and the range resolved velocity of meteorological targets such as rain or drizzle.
Faculty Jamiiru Luttamaguzi is a faculty member in the Department of Mathematics and General Sciences at Prince Sultan University in Riyadh, Saudi Arabia. Akbar Eslami is a professor in the Department of Technology at Elizabeth City State University.
Student Dwayne Brooks was a mathematics student at Elizabeth City State University and a 2012 NASA intern at NASA Goddard Space Center during this project. Currently he works for a company in Hampton, VA. Ehsan Sheybani is assistant professor of information systems and decision science and Giti Javidi is assistant professor of information technology at the University of South Florida Sarasota-Manatee. Philip M. Gabriel works at General Analytics in Wolfville, Nova Scotia, Canada.
Funding This research was supported by a NASA-Science and Technology Institute for Minority Institutions grant.

( 3 )

Recorded at: 4/6/2017 back to top
Title An Evaluation of Cognitive Skill Degradation in Information Automation
Citation Human Factors and Ergonomics Society, 2016; 60: 1:Volz K, Yang E, Dudley R, Lynch E, Dropps M, & Dorneich MC. Iowa State University
Description The purpose of this research is to investigate long-term effects of cognitive skill degradation (CSD) through the use of automation. Measurement and analysis of the effects of Information Automation (IA) on cognitive performance is an important first step in understanding CSD, which should be considered during design of these systems. The use of an automation aid was expected to result in a high level of performance degradation over time. Participants were placed into three groups and asked to perform flight planning calculations; the results of this study show that the use of an automation aid presented the highest level of performance degradation. This work provides the foundation for design of guidelines/recommendations for IA systems in order to prevent CSD.
Faculty Michael C. Dorneich is an associate professor for industrial and manufacturing systems engineering.
Student Katherine Volz is a concurrent MS student and has been working on this research from fall 2013 to spring 2016. Euijung Yang graduated from Iowa State with her PhD and is currently employed. She worked on this project from spring 2014 to spring 2016. Rachel Dudley graduated from Iowa State with her MS and is currently employed. She worked on this project during fall 2013. Elizabeth Lynch is a senior at Iowa State and worked on this project during Spring 2014. Maria Dropps graduated with her BS at Iowa State and is currently employed. She worked on this project during spring 2015.
Funding This work was funded by the Industrial and Manufacturing Systems Department’s Undergraduate Research Assistant program.

( 4 )

Recorded at: 4/6/2017 back to top
Title The Economic Costs of Natural Disasters, Terrorist Attacks, and Other Calamities: An Analysis of Economic Models that Quantify the Losses Caused by Disruptions
Citation Systems and Information Engineering Design Symposium at the University of Virginia, 2016; 1: 32-37, Al Kazimi A, MacKenzie C. Iowa State University
Description Over the past decade, numerous studies have estimated the economic impacts of a variety of disruptions. This paper compiles the results from economic models in order to compare the costs of different disruptions and help decision makers prioritize among disruptions. We compare the direct and indirect economic losses from a variety of disruptions, including earthquakes, hurricanes, terrorist attacks, pandemic diseases, and port closures. Some studies model hypothetical scenarios, but other studies quantify the economic losses from historical events such as the September 11 attacks and the 2011 Japanese tsunami. This paper provides a useful benchmark to understand the consequences from disruptions and highlight areas that public officials could address in planning for future disruptions.
Faculty Cameron MacKenzie is an assistant professor in industrial and manufacturing systems engineering at Iowa State University.
Student Amro Al Kazimi is a senior in industrial and manufacturing systems engineering at Iowa State University.
Funding Funding of this project was through the IMSE department at Iowa State University.

( 5 )

Recorded at: 3/7/2016 back to top
Title Mobile Standards-Based Traffic Light Detection in Assistive Devices for Individuals with Color-Vision Deficiency
Citation Intelligent Transportation Systems, IEEE Transactions on., 2015; 16: 3:1305-1320, Almagambetov A, Velipasalar S, Baitassova A.. Syracuse University / Embry-Riddle Aeronautical University
Description This paper presents a robust, traffic-standards-based, and computationally efficient method for detecting the status of the traffic lights without relying on GPS, lidar, radar information, or prior (map-based) knowledge and is the first work to use official ITE and BSI standards for defining traffic light colors.
Faculty Akhan Almagambetov is an assistant professor of electrical and computer engineering (Embry-Riddle Aeronautical University) and Senem Velipasalar is an associate professor in the department of electrical engineering and computer science (Syracuse University).
Student Assel Baitassova, a senior computer science major (Syracuse University), was involved in the research as an independent project. Assel is currently a project manager at the National Bank of the Republic of Kazakhstan.
Funding This research was supported by a grant from the National Science Foundation (NSF).

( 6 )

Recorded at: 3/7/2016 back to top
Title Growth and Microstructure-Dependent Hardness of Directionally Solidified WC–W2C Eutectoid Ceramics
Citation Journal of the American Ceramic Society. Year: 2015. Volume: 98. Issue: 3., 2015; 98: 3:Wei-Ting C, Caleb HM, Elizabeth CD.. North Carolina State University
Description The research investigated the Tungsten Carbide (WC) based refractory ceramics typically used to manufacture high performance cutting tools in an attempt improve their mechanical properties using laser surface processing. The research involved using known eutectoid compositions between WC and W2C phases to produce two-phase lamellar microstructures which together boost the mechanical properties beyond the limits of each of the individual phases. Using laser surface processing the scale of the eutectoid lamellar microstructure could be controlled to examine the size dependence of the microstructure. It was found that the indentation hardness of material increased with decreasing lamellar spacing. An indentation hardness of 28.5 GPa was achieved with the smallest interlamellar spacing, the highest hardness value reported in the WC system.
Faculty Elizabeth Dickey is a Professor and Director of Graduate Programs in the Department of Material Science and Engineering, Director of the Center of Dielectrics and Piezoelectrics and Associate Director of the Analytical Instrumentation Facility at North Carolina State University.
Student Caleb Meredith took part in research as an undergraduate from 2012 to 2014 while studying in the department of Material Science and Engineering at North Carolina State University. He is currently working as an researcher at a green technology startup company in Raleigh North Carolina.
Funding The research was supported by the National Science Foundation, Grant Number: CMMI-1139792.

( 7 )

Recorded at: 3/7/2016 back to top
Title Scour Characteristics of Saturated Levees Due to Floodwall Overtopping
Citation 2015; Karimpour M, Heinzl K, Stendback E, Galle K, Zamiran S, Osouli A. Southern Illinois University Edwardsville
Description In this study, the effects of overtopped water from floodwall impinging the soil surface on scour development are studied. For this purpose, laboratory-scaled simulator of a typical levee on the banks of Mississippi river with a scale of 1:20 was constructed. Silty soil materials were used to observe scour potential of the soil. In all the tests, the scour development and the stability of the wall were monitored and analyzed. In addition, the erodibility of the levee materials was determined using Erosion Function Apparatus (EFA). The results of EFA tests were compared to physical model tests results.
Faculty Dr. Abdolreza Osouli, Assistant Professor, a faculty member of Civil Engineering department.
Student Kyle Heinzl graduated in 2014 and currently works at PSI engineeirng. Emaline Stendback and Kevin Galle are senior undergraduate students in Civil Engineering.
Funding The research was supported by STEP grant funded by Southern Illinois University and Undergraduate Research Creativity Award Program.

( 8 )

Recorded at: 2/27/2015 back to top
Title Aerial Deployed Unfolding Autonomous Glider System
Citation 2014; Smith AJ. university of Nevada, Reno
Description This paper described the development and experimental testing of an aerially deployed UAV. The developed system decreases response time and increases the range over traditional UAVs which can aid in emergency situations.
Faculty Eric Wang is an associate professor of mechanical engineering.
Student n/a
Funding This research was supported by the Nevada NASA Space Grant Consortium

( 9 )

Recorded at: 2/27/2015 back to top
Title A Proportional Odds Model of Particle Pollution
Citation Environments., 2014; 1: Chimka JR, Ozdemir E.. University of Arkansas
Description A linear regression model of particle pollution and an ordered logistic regression model of the relevant index were selected for observations in the US city of Los Angeles, California. Models were used to forecast Air Quality Index (AQI) from a sample, and were compared and contrasted. Methods are comparable overall but markedly different in their powers to predict certain categories.
Faculty Justin Chimka is an associate professor of industrial engineering.
Student Ege Ozdemir is currently in a master's program in industrial engineering at the University of Arkansas.

( 10 )

Recorded at: 9/15/2014 back to top
Title High strength lightweight concrete (HSLC): Challenges when moving from the laboratory to the field
Citation Construction and Building Materials., 2014; 56: 44–52, Moreno D, Zunino F, Paul A, Lopez M.. Pontificia Universidad Católica de Chile
Description High strength lightweight concrete (HSLC) has been studied extensively in the laboratory and used in projects over the last decade. Few studies have focused on the issues associated with the field implementation of HSLC. These issues are explored and addressed in this study. There are small differences in the compressive strength, unit weight, modulus of elasticity, tensile strength, and bond strength of HSLC between the laboratory and the field. Special considerations during mixture design, careful moisture control of the lightweight aggregates (LWA), and consolidation are crucial for minimising variability and maintaining performance in the field.
Faculty Mauricio Lopez is an associate professor at School of Engineering, Pontificia universidad Católica de Chile
Student Moreno was a Master of Science (MSc) student at Pontificia Universidad Catolica de Chileand developed this research as part of his thesis work, he is currently employed. Zunino is currently a graduate MSc student at Pontificia Universidad Catolica de Chile, and collaborated on the data analysis and writing process of this research paper being a 5th year undergraduate civil engineering student, as part of an undergrad research opportunity offered by professor Lopez. Paul is currently a PhD student at Georgia Institute of Technology, and collaborated in this research after graduating from his MSc studies at Pontificia Universidad Catolica de Chile.
Funding The research was funded by INNOVA-CORFO (07CT7PCT-09).

( 11 )

Recorded at: 9/15/2014 back to top
Title Zebrafish as an in Vivo Screen for Early Black Cranberry Proanthocyanidin Biomolecular Activity
Citation American Journal of Molecular Biology, 2014; 4: 2:37-48, Macedo NJ, Neto CC, Liberty AM, Ferreira TL.. University of Massachusetts Dartmouth
Description The present study was designed to test in vivo the role of cranberry proanthocyanidins (PACs) in inhibiting cancer cell survival. The zebrafish are a useful in vivo model and they were used to look at the effect of PACs on developing embryos. In vitro results were supported showing that the PACs inhibit cells undergoing rapid cell division preferentially over adult normal cells. This work supports in vitro work indicating that PACs can inhibit cancer cells more than normal cells.
Faculty Tracie Ferreira is an Associate professor in the Dept of Bioengineering, Cathy Neto is a Professor in the Chemistry/Biochemistry Department.
Student Nicholas Macedo began this work as a sophomore student in the Bioengineering program. He performed this work as a summer project and throughout the semester as an independent project.
Funding He was supported by the College of Engineering Deans office (URIP-undergraduate research incentive program) as well as the Office of Undergraduate Research (OUR) programs at UMass Dartmouth.

( 12 )

Recorded at: 7/9/2014 back to top
Title Discriminative capacity of impulse oscillometry in diagnosis and treatment of asthmatic children
Citation Proceedings of the 29th Southern Biomedical Engineering Conference (SBEC), 2013 978-0-7695-5032-9/13 $26.00 © 2013 IEEE DOI 10.1109/SBEC.2013.15, 2013; 1: 1:Rodriguez L, Nazeran H, Meraz E, Estrada E, Rodriguez C, Edalatpour R. University of Texas at El Paso
Description The purpose of this research was to determine the discriminative capacity of the Impulse Oscillometry System (IOS) to properly diagnose airway impairments in children. IOS data from 112 Anglo and Hispanic asthmatic and non-asthmatic children were used to determine the sensitivity and specificity of the IOS and model parameters in diagnosing children with asthma. The outcomes confirmed that IOS should be considered for clinical diagnosis and treatment of asthma.
Faculty Homer Nazeran is a Professor of Electrical and Computer Engineering and a Professor of Biomedical Engineering Graduate Programs at the University of Texas at El Paso
Student Roya Edalatpour is a sophomore/junior and has been in Dr. Nazeran’s Biomedical Engineering Research (Pervasive Health Technology) Lab. since her freshman year in 2012 as a summer project by UTEP Provost Gonazlez. Roya is planning to attend medical school and has gained early acceptance
Funding This research was supported in part by the UTEP Provost Gonzalez’s Summer Student Research Experience Funds in 2012

( 13 )

Recorded at: 7/9/2014 back to top
Citation 2013; Doughty TA, Heintz J, Ishii M. University of Portland
Description Students designed and tested an eating utensil that is tuned to reduce hand tremor associated with Parkinsons. Theoretical developments were experimentally validated and the final design was successfully shown to be effective with human subjects.
Faculty Timothy Doughty is an Associate Professor of Mechanical Engineering
Student Melissa is a graduate student at Imperial College in London. Jordan is pursuing his PhD at UC Boulder.
Funding n/a

( 14 )

Recorded at: 7/9/2014 back to top
Title Numerical Enhancement of NMT for Predicting Fatigue Failure
Citation 2014; Doughty TA, Dally MR, Bacon MR. University of Portland
Description This study examined three enhancement techniques to better implement the Nonlinear Modal Tracking method of health monitoring. The research was applied to cantilevered beams shaken until failure and allowed for successful premonition of said failure.
Faculty Timothy Doughty is an Associate Professor of Mechanical Engineering
Student Matt and Mikah are both applying to graduate institutions.
Funding Funding for this work was awarded internally through the Donald P Shiley School of Engineering.

( 15 )

Recorded at: 7/9/2014 back to top
Title Thermally-assisted spatially-directed pore formation in Polydimethylsiloxane (PDMS)
Citation Applied Physics Letters., 2013; 103: 1-5, Banait A, Vishwakarma V, Choobineh L, Jain A.. The University of Texas at Arlington
Description This research presents a means to achieve spatially controlled self-assembly of micropores in the soft polymer Polydimethylsiloxane (PDMS). The proposed method utilizes thermocapillary effect, which causes bubbles in uncured PDMS to migrate toward a hot region created by a micro-scale heating device on a micro-fabricated chip. As a result, pores can be formed in different patterns by controlling the shape of the microheater. Linear and C-shaped pore formation is demonstrated and it is observed that pore formation mechanism is governed by microheater temperature.
Faculty Ankur Jain is an assistant professor in the Mechanical and Aerospace Engineering Department of UT Arlington.
Student This research was undertaken during Arya Banait’s junior year and is now the topic of her senior honors thesis. Arya is a senior undergraduate student of Mechanical Engineering at UT Arlington and will be attending Stanford University for her graduate studies in Fall 2014. Vivek Vishwakarma and Leila Choobineh are currently working on their doctoral degrees under the mentorship of Prof. Ankur Jain at the Microscale Thermophysics Laboratory at UT Arlington (Mechanical and Aerospace Engineering Department).
Funding A part of this research was funded by UT Arlington Honors College through an Undergraduate Research Assistantship awarded to Arya Banait in Summer 2013.

( 16 )

Recorded at: 12/5/2013 back to top
Title Experimental Evaluation of a Self-Contained Circulation-Control Wing
Citation Journal of Aircraft., 2013; 50: 3:764-777, Traub LW, Biegner M.. Embry Riddle Aeronautical University (Prescott)
Description A low-speed experimental investigation detailing the implementation of a self-contained circulation-control wing is presented. The trailing-edge jet was produced using two internal impellers drawing air off the wing tips. Testing indicated that the circulation-control system could achieve a moderate zero-lift angle-of-attack shift; however, the primary effect of the jet was flow control at high incidence, in which stall was delayed significantly.
Faculty Lance Traub is an Associate Professor of Aerospace Engineering
Student Matthew Biegner performed the experimental research at Embry Riddle Aeronautical University (Prescott) over the summer of 2011. The work was performed as part of a summer research project. Matthew is currently employed by Norhrop-Grumman.
Funding The research was supported by the NASA space grant

( 17 )

Recorded at: 12/5/2013 back to top
Title The Need: Education – Science, Technology, Engineering and Mathematics (STEM)
Citation Journal of Research Association of Minority Professors. 15, 6 -18. (Dillard University), 2013; 15: 6-18, Broadway R,Buddington SA, Stepney, A. Dillard University
Description This evaluative study explored the impact of a Saturday Science Academy on the academic performance of the 3rd – 5th and 6th - 8th grade minority students. The Saturday Science Academy (SSA) significantly, substantively or practically, impacted the academic performance of the 3rd – 5th and 6th - 8th grade minority students, who participated. Students’ scores increased in Mathematics, Science, English Language/Arts., with greatest increase in English/Language Arts, followed by Mathematics, and then Science. The majority of the students were African Americans (97.5 %), this demonstrated that the program has tremendous value and practicability in improving minority students’ academic performances in Science, Technology, Engineering, and Mathematics (STEM) and other related disciplines.
Faculty Ruby Broadway is an associate professor of biology and Steve Buddington is a professor of sociology/social work and is the program coordinator of the sociolgy education program
Student Ana Stepney is senior social work student who participated in this 2012 study to improve her knowledge in research methodology and data analysis – using the Statistical Package for the Social Sciences (SPSS). Ana Stepney, who will be graduating in May 2013, is applying to masters and joint masters/doctoral programs in social work.
Funding The research was supported by a grant from British Petroleum (BP), which was awarded to Ruby Broadway

( 18 )

Recorded at: 12/5/2013 back to top
Title Thermal Analysis of NAC-LWT Package under Normal and Fire Accident Conditions
Citation Packaging, Transport, Storage and Security of Radioactive Material, 2012; 23: 1:22-29, Mittal K, Greiner M.. University of Nevada, Reno
Description The current study analyzes the ability of a Used Nuclear Fuel transportation cask to reliably contain its contents under hypothetical accident conditions. Computation thermal analyses were performed to study the behavior of the NAC-LWT cask during and after a 30-minute fire, in accordance with Federal Regulations (10 CFR 71.73). It was determined that the fuel cladding and package seal temperatures would not exceed their limit temperatures.
Faculty Dr. Miles Greiner is a professor of Mechanical Engineering.
Student Ketan Mittal is currently pursuing his Bachelor of Science in Mechanical Engineering. He has been working as an undergraduate research assistant since his junior year, and is currently applying to graduate programs.
Funding This research project was funded by the Nuclear Regulatory Commission under contract NRC-HQ-11-P-02-0189.

( 19 )

Recorded at: 12/5/2013 back to top
Title Preliminary Analysis of Physiological Changes of Nursing Students during Training
Citation IEEE Engineering in Medicine and Biology Society, 2012; 28: 3772- 3775, Milosevic M, Jovanov E, Frith KH, Vincent J, Zaluzec E.. University of Alabama in Huntsville
Description The precise detection and assessment of occupational stress can be accomplished with real-time wearable monitoring of physiological parameters. Using nursing students during training on a simulator in lab, we recorded the heart rate, Heart Rate Variability (HRV), respiration, and physical activity of 14 nursing students. The results indicate significant strain on subjects during simulation: heart rate increased 16.7%, from 82.8 to 96.6 bpm (p<0.001), falling to a slightly increased level after the training session (84.9 bpm); Root Mean Square of Successive RR Differences (RMSSD) decreased from 38.9 ms to 37.7 ms. Simulated patient-related events created even more prominent response; the average heart rate increased 17.4 bpm (p<0.001) at the onset of “patient in crisis” event.
Faculty Dr. Karen Frith is a professor of nursing. Dr. Emil Jovanov is an associate professor of computer engineering.
Student Julie Vincent was an undergraduate nursing student who was involved in the literature review and in the data collection parts of the study. She is currently enrolled in graduate study at UAH. Eric Zalusec was an undergraduate engineering student who was involved in testing procedures and data collection.
Funding University of Alabama in Huntsville funded the study under the University Research Infrastructure Investment Program.

( 20 )

Recorded at: 9/10/2012 back to top
Title Prediction of the Dynamic Response of a Mini-Cantilever Beam Partially Submerged in Viscous Media using Finite Element Method
Citation Finite Elem Anal Des., 2012; 48: 1:1339-1345, Hossain A, Humphrey L, Mian A.. Montana State University
Description In this work, the use of mini cantilever beams for characterization of rheological properties of viscous materials is demonstrated. The dynamic response of a mini cantilever beam partially submerged in air and water is measured experimentally using a duel channel PolyTec scanning vibrometer. The changes in dynamic response of the beam such as resonant frequency, and frequency amplitude are compared as functions of the rheological properties of fluid media. Next, finite element analysis method is adopted to predict the dynamic response of the same cantilever beam and then compared with experimental results already performed to validate the FEA modeling scheme. After model validation, further numerical analysis was conducted to investigate the variation in vibration response with changing fluid properties.
Faculty Awlad Hossan is an assistant professor of mechanical engineering at Eastern Washington University. Ahsan Mian is an associate professor of mechanical engineering at Montana State University.
Student Luke Humphrey performed the experimental portion of the research at Montana State University (MSU) during the academic year of 2010-2011. This work was as part of his independent study credit. Luke completed his BS in mechanical engineering from MSU in December 2011. He will start Ph.D. at Georgia Tech in fall 2012.

( 21 )

Recorded at: 7/12/2012 back to top
Title Enhanced performance consistency in nanoparticle/TIPS pentacene-based organic thin film transistors
Citation Adv. Funct. Mater., 2011; 21: 19:3617–3623, He Z, Xiao K, Durant W, Hensley DK, Anthony JE, Hong K, Kilbey II SM, *Chen J, and Li D.. The University of Alabama and Oak Ridge National Laboratory
Description In this study, we take a novel approach to manipulate the morphology of 6,13-bis(triisopropylsilylethynyl)-pentacene (TIPS pentacene) thin film by blending inorganic silica nanoparticles and study the performance of solution-processed organic thin film transistors (OTFTs). The resultant drop-cast films yield improved morphological uniformity at ~10% SiO2 loading. We conclude that the blending of SiO2 and TIPS pentacene is an effective way to reduce the crystal anisotropy and enhance device performance uniformity.
Faculty Dr. Dawen Li is an Assistant Professor in the Department of Electrical and Computer Engineering at The University of Alabama.
Student Currently Mr. William Durant is still enrolled as an undergraduate student in Electrical and Computer Engineering at UA. Mr. Durant conducted the research under supervision of Dr. Li as a summer intern student at Oak Ridge National Laboratory.
Funding Supported by summer intern program from the Oak Ridge National Laboratory and Alabama DOE EPSCoR travel fund at UA

( 22 )

Recorded at: 6/13/2012 back to top
Title Continuous flow separation of particles and cells in a serpentine microchannel via curvature-induced dielectrophoresis
Citation Microfluid Nanofluid., 2011; 11: 6:Published online. DOI: 10.1007/s10404-011-0839-9., Zhu J, Canter RC, Keten G, Vedantam P, Tzeng T, Xuan X.. Clemson University
Description This study demonstrates a continuous-flow electrokinetic separation of polymer particles and biological cells in a serpentine microchannel through curvature-induced dielectrophoresis. The separation arises from the particle size-dependent cross-stream dielectrophoretic deflection that is generated by the inherent electric field gradients within channel turns. Through the use of a sheath flow for focusing, we implement a continuous separation of 1 and 5 um particles and a continuous separation of yeasts and 3 um particles in a serpentine microchannel under small DC electric fields.
Faculty Xiangchun Xuan is an assistant professor of mechanical engineering.
Student Cameron Canter worked in Dr. Xuan's lab first as an honor undergraduate student in Jan.-Dec. 2010 and then as an Creative Inquiry undergradaute student in Jan.-May 2011. He is currently a graduate student at GA Tech.Gyunay Keten worked in Dr. Xuan's lab as a Creative Inquiry undergradaute student in 2009-2010. He is a co-author of two journal papers from Dr. Xuan's group.
Funding This research was supported by NSF and Clemson University (Creative Inquiry Program and Calhoun Honors Program).

( 23 )

Recorded at: 6/13/2012 back to top
Title The global potentials for small- to mid-sized wind (10–500 kW) production: Using a Kenyan case study.
Citation Energy Sources, Part B: Economics, Planning, and Policy, 2012; 7: 1:91-103, Acker TL, Smith DH, Weathers B, Zinenko A.. Northern Arizona University
Description According to the Human Development Report 2007/2008 there are 1.577 billion people in the world without electricity, from which 1.569 billion are from developing countries. It raises a question: Should they use fossil fuels for their electricity needs as the developed world did in 19th century or could they leapfrog to renewable energy technologies? The majority of developed countries understand the problem of carbon emission and issue of climate change. One of the adaptation options is the usage of renewable energy such as wind and solar energy. The purpose of this article is to estimate the type and size of the wind energy system suitable for an unelectrified community of approximately 200 homes.
Faculty Thomas L. Acker is a professor of mechanical engineering and Dean Howard Smith is a professor of economics and applied Indigenous studies.
Student Brandt Weathers (Economics) and Anna Zinenko (Environmental Sciences) were undergraduate research assistants on this project in 2008 as part of a research exchange program.
Funding This project was funded in part by the Sustainable Energy Solutions Group at Northern Arizona University and the International Research Exchange program.

( 24 )

Recorded at: 6/13/2012 back to top
Title Aggregate interference distribution from large wireless networks with correlated shadowing: An analytical-numerical-simulation approach.
Citation IEEE Transactions on Vehicular Technology, 2011; 6: 2752-2764, Szyszkowicz SS, Alaca F, Yanikomeroglu H, Thompson J.. Carleton University
Description As the demand for wireless Internet connectivity continues to increase at a rapid pace, cellular network operators are pressed to deploy more advanced networks which can deliver higher speeds. In order to reliably deliver high speed connectivity, these networks must take into account detailed information about the environment, including interference from other users or loss in signal strength caused by obstacles such as buildings. This information should be accurate and quick to calculate. This work presents a simulation approach which provides accurate information about the interference received by a wireless node while reducing computational time in the order of thousands when compared to traditional approaches.
Faculty Halim Yanikomeroglu is Professor of wireless communications in the Department of Systems and Computer Engineering at Carleton University. John Thompson is Professor of signal processing and ommunications in the Institute for Digital Communications at the University of Edinburgh.
Student Furkan Alaca completed his B.Eng. in Communications Engineering at Carleton University, and is currently a Master 's student under the supervision of Professor Yanikomeroglu. Sebastian S.Szyszkowicz completed his PhD in Electrical and Computer Engineering and holds an NSERC Postdoctoral Fellowship at Communications Research Centre Canada.
Funding Furkan participated as an NSERC Undergraduate Summer Research Award holder under the supervision of Szyszkowicz and Yanikomeroglu. Szyszkowicz’s PhD studies were funded by an NSERC Postgraduate Scholarship.

( 25 )

Recorded at: 6/13/2012 back to top
Title A Distributed Wiki System Based on Peer-to-Peer File Sharing Principles
Citation IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology, 2011; 1: 364-371, Craig, A, Davoust, A, Esfandiari, B. Carleton University
Description We present P2Pedia, a distributed wiki system applying the principles of peer-to-peer (P2P) file-sharing networks to collaborative editing of documents: contributors may maintain their own version of each document, while accessing and reusing the contributions of others. This collaboration model generates a different type of versioning hierarchy, and changes the semantics of wikilinks. We show how the versioning hierarchy of documents and the wikilinks create a graph of documents, that can be searched using an existing file-sharing infrastructure, and propose some trust indicators to help users choose between available search results. Finally, we present the design and implementation of P2Pedia, and propose some scenarios where our proposed collaboration model is most appropriate.
Faculty Babak Esfandiari is Associate Professor in the Department of Systems and Computer Engineering at Carleton University.
Student Alexander Craig is currently a M.A.Sc. student in the Department of Systems and Computer Engineering at Carleton University. Alan Davoust is a PhD candidate in the Department of Systems and Computer Engineering at Carleton University.
Funding Alexander Craig undertook the work during a summer intership in 2010 as part of a USRA NSERC scholarship.

( 26 )

Recorded at: 6/13/2012 back to top
Title Analysis of coherent structures and atmosphere-canopy coupling strength during the CABINEX field campaign
Citation Atmos. Chem. Phys., 2011; 11: 11921-11936, Steiner AL, Pressley SN, Botros A, Jones E, Chung SH, Edburg SL.. University of Michigan and Washington State University
Description This study analyzed transport processes between a forest and the atmosphere, showing that intermittent coherent structures are responsible for a large fraction of the total air mass exchange. These coherent structures need to be considered when studying the mixing and chemical reactions of trace gases and aerosols between a forest canopy and the atmosphere. The percent contribution of mass and energy transport in and out of the canopy is quantified using two methods, the quadrant-hole analysis and the wavelet analysis. The methods predicted that coherent structures are responsible for 40-65% of the energy exchange between the forest canopy and the atmosphere.
Faculty Allison Steiner is an assistant professor in the Department of Atmospheric, Oceanic and Space Sciences at University of Michigan. Shelley Pressley and Serena Chung are assistant research professors in the Laboratory for Atmospheric Research, Department of Civil and Environmental Engineering at Washington State University. Steven Edburg is a research associate in the Geography department at University of Idaho.
Student Eric Jones participated in a REU program at Washington State University during the summer of 2010 after his freshman year. He is currently a junior enrolled at Olin College and expects to graduate in May 2013. Abraham Botros participated in a REU program at the University of Michigan during the summer of 2010 after his sophomore year. He is currently pursuing a neuroscience degree at University of California, Los Angeles and expects to graduate in June 2012.
Funding Jones was supported by a NSF-REU grant at WSU, Botros was supported by a NSF-REU grant at UM, and Steiner, Pressley, Chung and Edburg were all supported by NSF grants.

( 27 )

Recorded at: 6/13/2012 back to top
Title Decisions in Disaster Recovery Operations: A game theoretic perspective on organization cooperation
Citation Journal of Homeland Security and Emergency Management., 2011; 8: 1:1-14, Coles JB, Zhuang J.. University at Buffalo, SUNY
Description In this paper we proposed an approach to support and guide decision makers in emergency environments on how to select and develop relationships to improve resource utilization and project outcomes in the wake of a disaster. Using game theory, we provide an initial approach for the development of a decision support framework for emergency managers entering a disaster environment.
Faculty Jun Zhuang is an assistant professor in the Department of Industrial and System Engineering at the University at Buffalo, SUNY.
Student John B. Coles was a senior at the University at Buffalo in the Spring of 2009 when the research was performed through an undergraduate research seminar (IE 499) taught by Dr. Zhuang. John was a School of Engineering and Applied Sciences (SEAS) Senior Scholar, a program which provided funding to help develop the work now published. Mr. Coles is now working on his PhD at the University at Buffalo in Industrial and Systems Engineering with Dr. Zhuang as his advisor. John is also a current National Science Foundation Graduate Fellow.
Funding The work was performed by John using a small Scholarship which he was awarded through the SEAS Senior Scholar Program.

( 28 )

Recorded at: 6/13/2012 back to top
Title Capstone experiences: effects of adapted physical activity design projects on attitudes and learning.
Citation Proceedings of FIE Conference, 2011; 1: Hey DW, McCarey BJ, Slivovsky LA, Taylor JK, Self B, Widmann J.. California Polytechnic State University
Description Eight innovative senior level capstone engineering projects were completed at California Polytechnic State University (2008-present) involving (n=28) students (23 male/5 female). All projects involved the design of equipment to facilitate physical activity for people with disabilities. The effects on: i) learning design, ii) attitude towards people with disabilities, and iii) motivation to complete team design projects were analyzed through eight one-hour focus groups. Project challenges included: budget constraints, group communication, fabrication delays, detachment from client, and a desire for increased product testing time. Although students reported high levels of learning and motivation to complete their project; attitudes toward people with disabilities did not change significantly.
Faculty David W. Hey is an Assistant Professor in the Kinesiology Department. Bridie Jean McCarey, is a Kinesiology Student. Lynne A. Slivovsky is an Associate Professor in the Electrical Engineering Department. J. Kevin Taylor is a Professor in the Kinesiology Department. Brian Self is a Professor in the Mechanical Engineering Department. James Widmann is a Professor in the Mechanical Engineering Department.
Student Bridie is a Kinesiology major graduating spring 2011. In winter and spring quarters 2011, Bridie completed her 20-week senior project with a 6-page paper that was accepted and published at the fall 2011 FIE Conference. She is applying for graduate school as a Physician Assistant.
Funding The research was funded through a National Foundation Grant (Grant DUE-1062297).

( 29 )

Recorded at: 6/13/2012 back to top
Title A simplified PV model for low power MPPT controller design.
Citation 2010; Patangia H,Gourisetti SNG,Siddiqui A, Sharma S.. University of Arkansas at Little Rock
Description The paper presents a simplified PV model to assist in developing low cost MPPT controller in applications employing mini solar panels. High power drain of the control electronics isprohibitive for such low power application. Theoretical insight assisted by practical test data has been used to develop an equivalent Thevenin’s model where the Thevenin’s resistance is nonlinear and voltage dependent. The approach has provided a new MPPT criterion in terms of equivalent resistance that is both novel and useful in developing a controller that tracks themaximum power point under dynamic conditions.
Faculty Hirak Patangia is a Professor in Electronics and Computer Engineering Technology.
Student Srinikhil Gupta Gourisetti undertook the work in his Senior year(4th year) as a senior thesis project. He is currently in Master of Science Program.Afzal Siddiqui undertook the work in his Senior year(4th year) as a senior thesis project. He is currently in Master of Science Program.Sachin Sharma undertook the work in his Senior year(4th year) as a senior thesis project. He is currently in the process of applying to graduate programs.
Funding This research was supported by Arkansas Economic Development Commission (AEDC).

( 30 )

Recorded at: 6/13/2012 back to top
Title UGR Highlight #4
Citation Energ Source Part B., 2010; 5: 315-326, Acker TL, Glauth M, Atwater C, French E, Smith DH.. Northern Arizona University
Description Increasing energy and water concerns in Arizona are the driving forces to improve the efficiency of agricultural production within the state. This study addresses energy and water uses in growing a variety of crops in Arizona. The goal of the project is to identify and quantify all energy and water uses from the production of the initial seed, through the treatments of the soil and various chemical introductions, until the crop is harvested in the field. Thus, the analysis is “from seed to the edge of the field.” Using a series of secondary data sources, the research provides ranges for the energy and water consumption for the predominant crops grown in the major agriculture areas of the state.
Faculty Tom Acker is a professor of mechanical engineering and Dean Smith is a professor of economics and Applied Indigenous Studies.
Student Edana Wolf was a sophomore mechanical engineering student at the time of the research and is now working in the energy field as a manufacturing engineer. Chelsea Atwater was a senior economics student at the time of the research and is now working in the environmental field.
Funding These undergraduates were paid research assistants within the Sustainable Energy Solutions research group at Northern Arizona University.