Engineering Commons^™

Thin-Film Fabrication For High Pressure Thermoelectric And Electrical Resistivity Studies, Jorge L. Reynaga, Rama Venkat, Ravhi S. Kumar

Festival of Communities: UG Symposium (Posters)

Thermoelectric materials are of interest for application such as thermoelectric cooler in microprocessors and power generators in cars. High pressure plays an important role in understanding the changes in the figure of merit of thermoelectric thin films. To study the thermoelectric thin films a direct approach is to fabricate the thin film on the surface of a diamond anvil, so that the pressure dependence of structure and transport properties can be investigated easily. If we could successfully fabricate the electrical probes by depositing thin films, then it reduces the use of electrical wires as probes inside the diamond cell, as …

Construction And Use Of A Direct Calorimeter To Estimate Energy Expenditure In Hibernators, Mark S. Burger, Frank Van Breukelen

Festival of Communities: UG Symposium (Posters)

Metabolic rates have traditionally been estimated through indirect calorimetry (gas exchange or respirometry) due to its ease and availability. Oxygen consumption neglects the contributions of anaerobic metabolism, while direct calorimetry (heat production) estimates both anaerobic and aerobic metabolism. Walsberg and Hoffman (2005) report anaerobic metabolism may be more important to small rodents than was previously thought. During the non-steady state of mammalian hibernation, we hypothesize that anaerobic processes may play an even greater role in fueling metabolism. To address this question, we constructed a very sensitive calorimeter that utilizes the Seebeck effect from a thermoelectric element (Peltier device). We describe …

Graphene: Material That Will Change The Future, Jigar Desai, Darryl Reese

Festival of Communities: UG Symposium (Posters)

Graphene is the most recent material discovered by scientists and is a star on the horizon of materials science and condensed matter physics. The one atom thick, two dimensional materials is an amazing conductor of electricity. Although graphene was not discovered completely until 2004, it has already revealed potential applications and scientists have begun researching ways of developing graphene products for the market. Only two products have been successfully produced so far, but scientists have encountered amazing results. This material has many potential applications in the real world and is about to change the future in a positive way.

Aspect Ratio Dependent Buckling Mode Transition In Single-Walled Carbon Nanotubes Under Compression, Jeremy Feliciano

Festival of Communities: UG Symposium (Posters)

Using molecular dynamics simulations, we study axial compressive behavior of single-walled carbon nanotubes (SWCNTs) with a wide range of aspect ratios (length to diameter ratio). It is shown that the difference in aspect ratio leads to distinct buckling modes in SWCNTs. Small-aspect-ratio SWCNTs primarily exhibit shell buckling; they switch to column buckling mode with increasing aspect ratio. Further compression of the already column buckled large-aspect-ratio SWCNTs results in a shell buckling. This shell buckling mode is distinct from that of small-aspect-ratio SWCNTs in that it originates from the column buckling induced bending deformation.

Investigation Of Structural And Magnetic Properties Of Iron Clusters Encapsulated In Carbon, Andrew Mohrland, Eunja Kim, Phillipe Weck, Pang Tao, Kenneth Czerwinski

Festival of Communities: UG Symposium (Posters)

Our goal is to investigate and predict the properties of iron-carbon nanostructures by performing numerical calculations using the density-functional theory. We are interested in which nanostructures are most stable, and in how they are likely to form. We have a particular interest in the magnetic properties of carbon "buckyballs" containing iron particles. These structures have potential for biomedical application, including use in anti-cancer treatment. Lone iron clusters have potential for use as a catalyst designed to reduce vehicle emissions.

X-Ray Diffraction On The Thermoelectric Silicides At High Pressure, Deep Patel, Ravhi S. Kumar, Andrew Cornelius

Festival of Communities: UG Symposium (Posters)

Cobalt Silicide (CoSi2) is a transition metal disilicide that has gathered scientific interest due to its interesting thermoelectric properties and applications in silicon-based devices because of their high temperature stability. It has been reported that CoSi2 undergoes a phase transition at around 0.4 GPa and again at 13 GPa. Furthermore, at 13 GPa the material changes from a cubic cell to an orthorhombic cell, but details of the phase transition at 0.4 GPa could not be determined. To further study the properties of CoSi2 and understand its pressure induced phase changes, we recorded the structural behavior of CoSi2 under pressure.

Computational Study Of Carbon Nanotubes Under Strain, Jeremy Feliciano, William Wolfs

Festival of Communities: UG Symposium (Posters)

We perform computational studies of carbon nanotubes (CNTs) using molecular dynamics simulations to examine the behavior of single-walled (SW) and multiwalled (MW) CNTs under large compressive and bending strains. We study the effects of defects, heating and chirality on their properties. Research on CNTs holds great promise for developing new advanced materials in applications ranging from high-strength composites to next-generation electronics.

Event Program, Carl Reiber, Nicholle Booker

Festival of Communities: UG Symposium (Posters)

UNLV Undergraduates from all departments, programs and colleges participated in a campus-wide symposium on April 16, 2011. Undergraduate posters from all disciplines and also oral presentations of research activities, readings and other creative endeavors were exhibited throughout the festival.

Proceedings, Msvscc 2011, Old Dominion University, Department Of Modeling, Simulation & Visualization Engineering, Old Dominion University, Virginia Modeling, Analysis & Simulation Center

Modeling, Simulation and Visualization Student Capstone Conference

Proceedings of the 5th Annual Modeling, Simulation & Visualization Student Capstone Conference held on April 14, 2011 at VMASC in Suffolk, Virginia. 186 pp.

Partnership For International Research And Education In Microfluidic Technology With Applications In Point Of Care Diagnostic, Mohammed Faghri, Sigrid Berka, John Grandin, Thomas Mather, D.M.L Meyer, Zongqin Zhang, Otto Gregory, Stephan Grilli, Christopher Baxter, Constantine Anagnostopoulos, Assem Abolmaaty

Discovery@URI

This poster summarizes the research highlights of a project conducted as part of an National Science Foundation (NSF) partnership for research and education. The objective of this multidisciplinary, international project was to conduct research on microfluidic technology and applications. The project team is comprised of participants from the University of Rhode Island and the Technical University of Braunschweig in Germany. The research focuses on the following four tasks: Task 1 – Discovery of disease biomarkers; Task 2 –Streaming based microfluidic platform for pumping, mixing, separation and detection; Task 3 – Development of rapid, quantitative and sensitive microfluidic fluorescence immunosensors for …

Keynote 2: The Alberta Oil Sands — Wrestling Bitumen Out Of The Wild North, David Rudolph

North American Energy Water Nexus Roundtable

Athabasca Oil Sand Reserve:

- Oil sands are contained within the Cretaceous McMurray Formation. (149,000 km2)

- 2.5 trillion barrels of extractable oil (~ 25 % of Canada Crude Oil Production)

- Surface mineable deposits cover 2,800 km2

- 450 billion L of process water used annually

- Currently over 130 km2 of tailings ponds (largest man-made structures in the world)

Panel Discussion Presentation: U.S. – Mexico Transboundary Perspectives, Martin J. Pasqualetti

North American Energy Water Nexus Roundtable

Panel Discussion: U.S.-Mexico Transboundary Perspectives

Principal Question: What are the implications of the energy/ water nexus at the US/Mexico border?

1. Water Supply and Demand

2. Water Costs of Electricity

3. Virtual Water Transfers

4. Renewable Energy Resources

5. Solar/Water nexus at the US/Mexico Border

Panel Discussion Presentation: Regional Politics, International Dreams, Kathryn Furlong

North American Energy Water Nexus Roundtable

Panel Discussion: U.S.-Canada Transboundary Perspective

The Main Idea:

What are the drivers of hydro-electric development? What are the influences of domestic politics? In what ways are they international?

Panel Discussion Presentation: Columbia River Treaty, Kelvin Ketchum

North American Energy Water Nexus Roundtable

Panel Discussion: U.S.-Canada Transboundary Perspectives

Slide titles:

- Columbia River Treaty – the setting

- What does the Treaty Do?

- Social & Environmental Costs of the Treaty in Canada

- Treaty benefits and term

- Treaty priorities for water usage

- Example of Flood Control Curves

- Actual Treaty operations

- Supplemental operating agreements

- Treaty Implementation

- Reasons for Treaty Success

Panel Discussion Presentation: Canada-U.S. Transboundary Perspectives, David Rudolph

North American Energy Water Nexus Roundtable

Panel Discussion: U.S.-Canada Transboundary Perspectives

Longest international border in the world: 8,890km, over 3,000km are water!

- Major transboundary river systems (Columbia, Red River)

- 1997 Red River Flood

- Strategies for future power and water needs

- Canadian resource-based economy

Event Program, University Of Nevada, Las Vegas

North American Energy Water Nexus Roundtable

The North American Energy-Water Nexus roundtable was held April 1, 2011, to promote the discussion of how energy and water issues converge in addressing international relations. The roundtable focused on water issues specific to the U.S.-Mexico and U.S.-Canada borders, including stakeholder-driven solutions for water policies and water technologies. The event was co-sponsored by the UNLV Urban Sustainability Initiative; Desert Research Institute; the Canadian Consulate of Los Angeles; and the government of Ontario, Canada.

Nextgen Technology: From Metaphysical Perfection To Complete Failure, Anne E. Burnett

Continuing Legal Education Presentations

In this paper, I explore technologies currently available on the web which can improve the efficiency of your practice. I also point to new trends in innovation along with examples of the products coming out of those trends and recommend resources for keeping up-to-date with new gadgets and applications.

They Passed That? He Decided What? Tools And Techniques For Staying Informed About The Law, Jason Tubninis

Continuing Legal Education Presentations

Thanks to the wide-scale adoption of the Internet as a primary means of disseminating information, the amount available is increasing at an exponential rate every day. This is especially true for the legal field and the practice of law. There is an incredible amount of information being released from a myriad of sources; government agencies, legal scholars, private practitioners, experts and more are distributing a veritable treasure trove of resources online.

The question is no longer “Is it out there?” but “How can I find it?” Unfortunately, this question is becoming increasingly difficult as the shear amount being released begins …

Internet Ethics: Complications Of The Digital Age And Web Sites To Help You Untangle Them, Maureen Cahill

Continuing Legal Education Presentations

Computers and the Internet have profoundly changed at least the mechanics of the practice of law. Client communication, legal research, document drafting and transmittal, and record storage are increasingly paper free undertakings. As someone who began the practice of law long before the advent of the personal computer or the Internet, I can attest that the shift to computers and the Internet has greatly increased efficiency, productivity and convenience. At the same time, these tools can greatly complicate many traditional ethical considerations.

The paper is divided into two parts. In the first portion of this paper, I will try to …

Poster Session, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Fate of Stable Isotope Label During Predation of 15N-Tagged Wild-Type Escherichia coli by Protozoa, Ashley Barton and Alan Fryar, Dept Earth and Environmental Sciences, UK
• Cane Run Watershed Assessment and Restoration – Phase One Accomplishments, Amanda Gumbert and others, UK Cooperative Extension Service
• Improving Water Quality: Riparian Edge versus River Channel, Renee Kirtman and Kristy Hopfensperger, Biological Sciences, Northern Kentucky University
• Microscopic Population Dynamics and their Relationships to the Activated Sludge Process in a 30 MGD Wastewater Treatment Plant, Maria Lundin and David Price, LFUCG Division of Water Quality
• Southern Region Down-Well Camera Project, Glynn …

Session 2d, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Water Quality Credit Trading Feasibilities for Kentucky, Marie Pelton and others, Dept of Agricultural Economics, UK
• Participation in Agricultural Governmental Cost Share Programs in the Kentucky River Watershed in the Context of Water Quality Trading, Pedro Fernandes da Costa and others, Dept of Agricultural Economics, UK
• Point Source Polluters in the Kentucky River Watershed and the Potential for Water Quality Trading, Ron Childress and others, Dept of Agricultural Economics, UK
• Nonpoint Source Abatement Costs in the Kentucky River Watershed, Zheng Liu and others, Dept of Agricultural Economics, UK

Session 2c, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Comparing the Kentucky Phosphorus Index with the P Loss Calculated with a Process-Based Model, Carl Bolster, USDA-ARS, AWMRU, Bowling Green, KY
• Kentucky Nutrient Criteria Development and Reduction Strategy, Clark Dorman, Water Quality Branch, KY DOW
• Genotypic Diversity of Escherichia coli Isolates from Environmental Sources and the Influence on Transport Behavior, Kimberly Cook and others, USDA-ARS, AWMRU, Bowling Green, KY
• A Multiparameter Approach for the Identification of Leaking and Overflowing Sanitary Sewers in the Wolf Run Watershed, Tricia Coakley and Gail Brion, Depts of Earth and Environmental Sciences and Civil Engineering, UK

Session 2b, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Building Support for Protecting and Restoring Plain, Frumpy, Dowdy Streams, Barry Tonning, Tetra Tech, Mt. Sterling, KY
• Monitoring Water Quality in Hinkston Creek: Providing Information for Action, Brian Reeder and April Haight, Center for Environmental Education, Morehead State University
• The Story of the Hinkston Creek Watershed Data, Gregory Sousa and others, Tetra Tech
• Implementation of Watershed Based Plans in the Dix River Watershed, Caroline Walz and Malissa McAlister, OSM/VISTA Dix River Watershed Coordinator and KWRRI

Session 2a, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Pollutant Removal Effectiveness of the McConnell Springs Stormwater Quality Wetland Pond and the Gainesway Pond Retrofit Project, Lexington, KY, David Price and Susan Plueger, LFUCG Division of Water
• Combined Sewer Separation: A Constructed Wetland Approach, Jonathan Nieman, CDP Engineers Inc., Lexington, KY
• Water Quality Retrofit Basin Selection Process in Louisville Kentucky, Eric Senn, Land Design and Development, Louisville KY
• Live Green Lexington: Water Partner Program, Darcy Everett and Joanna Isaacs, Bluegrass PRIDE

Session 1d, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• The Carboxylic Acid-Bound Iodine Layer – Towards an Anti- Fouling Coating for Water Sensors and Water Treatment Facilities, Lingbo Lu and Yuguang Cai, Dept of Chemistry, UK
• Aqueous Arsenic Removal by Thiol-Containing Filtration Columns, Partha Jana and David Atwood, Dept of Chemistry, UK
• Green Construction in an Urban Landscape, Elizabeth Bullock and others, CDP Engineers, Lexington, KY
• Developing a Storm Water Management Plan in the Jackson Ditch Watershed, City of Trenton, Butler County, Ohio, Erman Caudill, Stantec Consulting Services, Inc., Lexington, KY

Session 1c, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Bush Honeysuckle Induced Aquatic Hypoxia, Stephanie Hayes and Richard Durtsche, Dept of Biological Sciences, NKU
• A Laboratory Scale, Continuous Flow Bioreactor for the Removal of Manganese in Water Supplies, Michael Snyder and Y.T. Wang, Dept of Civil Engineering, UK
• Flood Impact Due to Dam Failure: An Assessment of Current Studies and the Appropriateness of the Methodologies Applied to the Dix Dam, Allen Cantrell and Scott Yost, Dept of Civil Engineering, UK
• Development of a Comprehensive Sediment Transport Method in First Order Watersheds with Contour Coal Mining, Darren Martin and Jimmy Fox, Dept of Civil Engineering, UK

Session 1b, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Land-Use, Stream Channel Dynamics, and Macroinvertebrate Community Responses: A Northern Kentucky Case Study, Bob Hawley and others, Sustainable Streams, LLC
• Kentucky LiDAR Meets NAIP Multispectral Imagery: Toward Data Fusion in the Assessment of Watershed Change, Demetrio Zourarakis, Kentucky Div of Geographic Information, Frankfort
• Seasonal Variation in Water Quality and Dissolved Methane of Barren River Lake, John Loughrin and Carl Bolster, USDA-ARS, AWMRU, Bowling Green, KY
• Water Quality Investigation in the Eastern Kentucky Coalfields, Lisa Underwood and Lisa Hicks, USACE and KY DOW

Session 1a, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Pilot Study to Integrate Existing Karst Flow Data for Kentucky in the National Hydrography Dataset Created by the U.S. Geological Survey, Rob Blair and others, KY DOW
• An Evaluation of Physical and Chemical Discharge Parameters from a Spring that Drains the Epikarst, David Jackson, Groundwater Section, KY DOW
• Characterizing Health Risks in Privately Supplied Drinking Water Due to Agricultural Practices in Rural Western Kentucky, Leading to an Intervention Study, Karen Card and E. Glynn Beck, Dept of Epidemiology and KGS, UK
• Aqueous Geochemistry of a CO2-Enhanced Oil Recovery Project in the Sugar Creek Oil Field, Hopkins County, …

Proceedings Of 2011 Kentucky Water Resources Annual Symposium, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

This conference was planned and conducted as part of the state water resources research annual program with the support and collaboration of the Department of the Interior, U.S. Geological Survey and the University of Kentucky Research Foundation, under Grant Agreement Number 06HQGR0087.

The views and conclusions contained in this document and presented at the symposium are those of the abstract authors and presenters and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Government or other symposium organizers and sponsors.

Overview Of Roughness And Blowing Effects In Flows Over Ablating Surfaces, Adam Amar, Charles Powars

Ablation Workshop

The scope of this session includes ablation effects on surface roughness and surface roughness effects on ablation. Ablation involves blowing, and so we address blowing including combined roughness and blowing effects. The two distinct types of ablating material surface roughness are defined with examples: 1) roughness related to the material inhomogeneity, and 2) roughness induced by turbulent flow that appears to be unrelated to material inhomogeneties.

Existing approaches for modeling ablative material surface roughness and blowing effects are overviewed. These range from empirical “augmentation factor” correlations to high-fidelity simulations of flow-surface interactions using modern CFD techniques. For models requiring input …