Physical Sciences and Mathematics Commons^™

Realising Wacnet Through A Zigbee-Based Architecture, A. Desmet, F. Naghdy, Monserrat Ros

Faculty of Informatics - Papers (Archive)

The development of a novel architecture called Wireless Ad-hoc Control Networks (WACNets) is reported. WACNet (Wireless Ad-hoc Control Network) is a novel concept developed by Intelligent Mechatronics Research Centre, University of Wollongong, towards providing a framework for highly distributed intelligent wireless control networks. A WACNet consists of intelligent nodes based on IEEE 1451 Smart Sensor with a wireless means of communication (BlueTooth). The focus in this paper is on designing a suitable wireless communication system for this network. In the earlier design. the wireless communications was developed based on Bluetooth and WiFi standards. While being successful, they showed some limitations …

Elk Use Of Wallows And Potential Chronic Wasting Disease Transmission, Kurt C. Vercauteren, Patrick W. Burke, Gregory W. Phillips, Justin W. Fischer, Nathan W. Seward, Bruce A. Wunder, Michael J. Lavelle

United States Department of Agriculture Wildlife Services: Staff Publications

Deposition of prions into the environment by infected animals may contribute to transmission and spread of chronic wasting disease (CWD) among free-ranging cervids, and identification of such environmental sources may provide an avenue for managing CWD. We evaluated the role that wallow use by elk (Cervus elaphus) may play in CWD transmission by monitoring wallows with animal-activated cameras throughout their period of use. We monitored 39 wallows from 5 August 2005 to 14 October 2005. Elk visited 20 sites; we recorded 22 events when only male elk wallowed and 374 additional events when male and female elk had …

An Update On Groundwater Conditions At The Site Of The York College Cuny Campus In Southeastern Queens County, New York City, Nazrul I. Khandaker, Stanley Schleifer, Zarine Ali, Edward A. Molteni

Publications and Research

The wells operated by the Jamaica Water Supply Company in Queens represent the only large scale utilization of groundwater for public water supply in New York City in recent years. These wells were shut down, for the most part, beginning in 1996. Since that time, water table elevations in the area, which had been drawn down by the withdrawal activity of the Jamaica Water Supply Company, have risen significantly causing some high groundwater problems, including flooding of basements. The New York City Department of Environmental Protection (NYCDEP) has held public hearings on a contemplated resumption of ground water withdrawal in …

Intersection Algorithms Based On Geometric Intervals, Nicholas Stewart North

Theses and Dissertations

This thesis introduces new algorithms for solving curve/curve and ray/surface intersections. These algorithms introduce the concept of a geometric interval to extend the technique of Bézier clipping. A geometric interval is used to tightly bound a curve or surface or to contain a point on a curve or surface. Our algorithms retain the desirable characteristics of the Bézier clipping technique such as ease of implementation and the guarantee that all intersections over a given interval will be found. However, these new algorithms generally exhibit cubic convergence, improving on the observed quadratic convergence rate of Bézier clipping. This is achieved without …

Effect Of Tip Resonances On Tunnelling Anisotropic Magnetoresistance In Ferromagnetic Break Junctions: A First-Principles Study, John D. Burton, Renat F. Sabirianov, Julian P. Velev, O. N. Mryasov, Evgeny Y. Tsymbal

Materials Research Science and Engineering Center: Faculty Publications

First-principles calculations of electron tunneling transport in nanoscale Ni and Co break-junctions reveal strong dependence of the conductance on the magnetization direction, an effect known as tunneling anisotropic magnetoresistance TAMR. An important aspect of this phenomenon stems from resonant states localized in the electrodes near the junction break. The energy and broadening of these states is strongly affected by the magnetization orientation due to spin-orbit coupling, causing TAMR to be sensitive to bias voltage on a scale of a few millivolts. Our results bear a resemblance to recent experimental data and suggest that TAMR driven by resonant states is a …

Properties Of L = 1 B1 And B2* Mesons, V. M. Abazov, Kenneth A. Bloom, Gregory R. Snow, D0 Collaboration

Gregory Snow Publications

This Letter presents the first strong evidence for the resolution of the excited B mesons B₁ and B₂^* as two separate states in fully reconstructed decays to B^+(*). The mass of B₁ is measured to be 5720.6 ± 2.4 ± 1.4 MeV=c ² and the mass difference ΔM between B₂^* and B₁ is 26.2 ± 3.1 ± 0.9 MeV/c ², giving the mass of the B₂^* as 5746.8 ± 2.4 ± 1.7 MeV/c ². The production rate for B₁ and B_{2 …}

Marks, Mary E. (Sc 1523), Manuscripts & Folklife Archives

Manuscript Collection Finding Aids

Finding aid and full-text scan (Click on "Additional Files" below) for Manuscripts Small Collection 1523. Dissertation (126 p.; illus.; maps) by Mary E. Marks titled "The Rock Asphalt Industry of Western Kentucky" written for the Department of Geography at the University of Chicago and submitted in December 1931. Discusses several important asphalt rock mining operations in the south central section of Kentucky.

Accounting For Additional Heterogeneity: A Theoretic Extension Of An Extant Economic Model, Bradley John Barney

Theses and Dissertations

The assumption in economics of a representative agent is often made. However, it is a very rigid assumption. Hall and Jones (2004b) presented an economic model that essentially provided for a representative agent for each age group in determining the group's health level function. Our work seeks to extend their theoretical version of the model by allowing for two representative agents for each age—one for each of “Healthy” and “Sick” risk-factor groups—to allow for additional heterogeneity in the populace. The approach to include even more risk-factor groups is also briefly discussed. While our “extended” theoretical model is not applied directly …

Differences In Electrochemical Properties Of Contact Printed And Solution Adsorbed Alkanehtiol Self-Assembled Monolayers On Gold, Leslie Adamczyk, Mark Anderson

Mark R. Anderson

No abstract is currently available.

Effects Of Potential On Ionic Self-Assembly Of Carboxylic Acid Terminated Monolayers, Wesley Sanders, Mark Anderson

Mark R. Anderson

No abstract is currently available.

Measurement Of The Top Quark Mass In The Dilepton Channel, V. M. Abazov, Kenneth A. Bloom, Gregory Snow, D0 Collaboration

Gregory Snow Publications

We present a measurement of the top quark mass in the dilepton channel based on approximately 370 pb^-1 of data collected by the DØ experiment during Run II of the Fermilab Tevatron collider. We employ two different methods to extract the top quark mass. We show that both methods yield consistent results using ensemble tests of events generated with the DØ Monte Carlo simulation. We combine the results from the two methods to obtain a top quark mass m_t = 178.1 ± 8.2 GeV. The statistical uncertainty is 6.7 GeV and the systematic uncertainty is 4.8 GeV.

Structure Of Arabidopsis Thaliana 5-Methylthioribose Kinase Reveals A More Occluded Active Site Than Its Bacterial Homolog, Shao Yang-Ku, Kenneth A. Cornell, P. Lynne Howell

Chemistry and Biochemistry Faculty Publications and Presentations

Background: Metabolic variations exist between the methionine salvage pathway of humans and a number of plants and microbial pathogens. 5-Methylthioribose (MTR) kinase is a key enzyme required for methionine salvage in plants and many bacteria. The absence of a mammalian homolog suggests that MTR kinase is a good target for the design of specific herbicides or antibiotics.

Results: The structure of Arabidopsis thaliana MTR kinase co-crystallized with ATPγS and MTR has been determined at 1.9 Å resolution. The structure is similar to B. subtilis MTR kinase and has the same protein kinase fold observed in other evolutionarily related …

Data Center Migration, Shane Wiswell

Regis University Student Publications (comprehensive collection)

A successful datacenter migration plan will contribute to a company's productivity by minimizing the downtime of the business critical systems. After the design and construction of the new computer data center, a detailed project plan will be used to demonstrate the effectiveness of the data center migration in relation to the impact on the company's client base.

Applying Bayesian Ordinal Regression To Icap Maladaptive Behavior Subscales, Edward P. Johnson

Theses and Dissertations

This paper develops a Bayesian ordinal regression model for the maladaptive subscales of the Inventory for Client and Agency Planning (ICAP). Because the maladaptive behavior section of the ICAP contains ordinal data, current analysis strategies combine all the subscales into three indices, making the data more interval in nature. Regular MANOVA tools are subsequently used to create a regression model for these indices. This paper uses ordinal regression to analyze each original scale separately. The sample consists of applicants for aid from Utah's Division of Services for Persons with Disabilities. Each applicant fills out the Scales of Independent Behavior"”Revised (SIB-R) …

Heuristic Weighted Voting, Kristine Perry Monteith

Theses and Dissertations

Selecting an effective method for combining the votes of classifiers in an ensemble can have a significant impact on the overall classification accuracy an ensemble is able to achieve. With some methods, the ensemble cannot even achieve as high a classification accuracy as the most accurate individual classifying component. To address this issue, we present the strategy of Heuristic Weighted Voting, a technique that uses heuristics to determine the confidence that a classifier has in its predictions on an instance by instance basis. Using these heuristics to weight the votes in an ensemble results in an overall average increase in …

Shaping The Future Of Southern Nevada Conference Key Points, Ron Smith

Shaping the Future of Southern Nevada: Economic, Environmental, and Social Sustainability

General summary of key points raised at the conference

Concurrent Panel Session 1: Sustainability In Community Development And Architecture In Las Vegas, Alfredo Fernandez-Gonzalez, Craig Galati, Mary Kay Peck, Jeff Roberts, Suzanne Sanders, Richard Serfas

Shaping the Future of Southern Nevada: Economic, Environmental, and Social Sustainability

Moderator: David Frommer, AIA, UNLV Planning & Construction Scribe: Michael Spurr, UNLV Department of History Conference white paper & Full summary of panel session, 5 pages

Concurrent Panel Session 2: Service Learning: Linking Students And Community, Daniel Mclean, Jane Pike, Seth Pollack, Fran Smith, Jean Whitney, Cheri Young

Shaping the Future of Southern Nevada: Economic, Environmental, and Social Sustainability

Moderator: Peg Rees, UNLV Public Lands Institute Scribe: Melanie Taylor, UNLV Department of Criminal Justice Conference white paper & Full summary of panel session, 4 pages

Concurrent Panel Session 2: Challenges Facing Our Youth And Aged Populations, Michele Clark, Claudia Collins, Chris Kearney, Ed Jost, Larry Mason, Carla Sloan, William Sullivan

Shaping the Future of Southern Nevada: Economic, Environmental, and Social Sustainability

Moderator: Dr. Ann McDonough, UNLV Gerontology Program Scribe: Lisa Gioia-Acres, UNLV Department of History Conference white paper & Full summary of panel session, 4 pages

Concurrent Panel Session 1: Challenges Of Economic Growth & Diversification & Labor Preparation In Las Vegas, Maggie Arias-Petrel, Cedric Crear, Somer Hollingsworth, Mike Majewski, John Restrepo, Mary Riddel, Keith Schwer, Dina Titus

Shaping the Future of Southern Nevada: Economic, Environmental, and Social Sustainability

Moderator: Dr. Mel Jameson, UNLV College of Business Scribe: Angela Moor, UNLV Department of History Conference white paper & Full summary of panel session, 6 pages

Concurrent Panel Session 1: Environmental Sustainability And Las Vegas, Dale A. Devitt, David E. James, Patricia Mulroy, Alan O'Neill, Thomas C. Piechota, Doug Selby, Krystyna Anne Stave, Michael Yackira, Bruce Turner

Shaping the Future of Southern Nevada: Economic, Environmental, and Social Sustainability

Moderator: Dr. Stan Smith, UNLV School of Life Sciences Scribe: Crystal Jackson, UNLV Department of Sociology Conference white paper & Full summary of panel session, 6 pages

Concurrent Panel Session 2: Health Challenges Facing Las Vegas, Carlos Brandenburg, Shawn Gerstenberger, Zaven Khachaturian, John Mcdonald, Dennis Pirages, Thom Reilly, Kathy Silver, Bonnie Sorenson, Carolyn B. Yucha, Maurizio Trevisan

Shaping the Future of Southern Nevada: Economic, Environmental, and Social Sustainability

Moderator: Marcia Turner, NSHE Health Science System Scribe: Candace Griffith, UNLV Department of Sociology Conference white paper & Full summary of panel session, 8 pages

Engaging The Community: The Metropolitan University, Jonathan Fink

Shaping the Future of Southern Nevada: Economic, Environmental, and Social Sustainability

31 PowerPoint slides Abstract: -Phoenix late entry in global, high-tech competition -ASU assists Metro Phoenix with all aspects of sustainability -University provides expertise, ideas, tools, workforce -Global Institute of Sustainability aligns ASU & regional needs -Decision Theater: Policy-making plus technology -Lessons should be relevant to Las Vegas and UNLV

Las Vegas X 3 @ 2030-Part 1 & 2, Arthur Chris Nelson

Shaping the Future of Southern Nevada: Economic, Environmental, and Social Sustainability

Part 1, 12 PowerPoint slides

Shaping The Future Of Southern Nevada Conference Schedule

Shaping the Future of Southern Nevada: Economic, Environmental, and Social Sustainability

Emcee: Dr. Ron Smith, UNLV Interim Vice President for Research & Graduate Dean

Shaping The Future Of Southern Nevada Conference Photos

Shaping the Future of Southern Nevada: Economic, Environmental, and Social Sustainability

7 pages

Shaping The Future Of Southern Nevada Moderators & Panelists Biographies

Shaping the Future of Southern Nevada: Economic, Environmental, and Social Sustainability

Moderators & Panelists biographies

Shaping The Future Of Southern Nevada Conference Cover Artwork, James B. Pink

Shaping the Future of Southern Nevada: Economic, Environmental, and Social Sustainability

Artwork Credit: Blue Moon, Acrylic Painting, 4' x 5' by

A High Repetition Rate Time-Of-Flight Electron Energy Analyzer, Shawn A. Hilbert, Brett E. Barwick, M. Fabrikant, Cornelis J. Uiterwaal, Herman Batelaan

C.J.G.J. Uiterwaal Publications

We demonstrate a time-of-flight electron energy analyzer that operates at an 80 MHz repetition rate. The analyzer yields an energy resolution of 40 meV for 3 eV electrons. The energy resolution limit is dominated by the detector time (or temporal) resolution. With a currently available detector with a temporal resolution of 100 ps, we predict an energy resolution of less than 1 meV for 200 meV electrons. This makes high repetition rate time-of-flight energy analyzers a promising low-technology alternative to current state-of-the-art techniques.

Microimprinting And Ferroelectric Properties Of Poly(Vinylidene Fluoride-Trifluoroethylene) Copolymer Films, Lei Zhang, Stephen Ducharme, Jiangyu Li

Stephen Ducharme Publications

Poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] copolymer films have been patterned by microimprinting with excellent quality of pattern transferring. Ferroelectricity of the imprinted films has been confirmed by ferroelectric hysteresis and surface potential measurement, and very good correlation is observed between remnant polarization and surface potential of the imprinted films. Imprinted P(VDF-TrFE) films show high remnant polarization and high poling-induced surface potential when the imprinting temperature is around 140 °C, suggesting that 140 °C is the optimal imprinting temperature for P(VDF-TrFE) films. The patterned ferroelectric P(VDF-TrFE) films can be used for a wide range of applications.