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University of Nevada, Las Vegas

2012

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Articles 151 - 174 of 174

Full-Text Articles in Physical Sciences and Mathematics

Visualization Facility At Unlv Gis And Remote Core Lab, Haroon Stephen Feb 2012

Visualization Facility At Unlv Gis And Remote Core Lab, Haroon Stephen

NSTec UNLV Symposium

Outline

  • About GIS/RS Lab
  • Visualization Facility
  • Research Areas
  • Summary


The Unlv Xps Facility – Research Opportunities, Allen L. Johnson Feb 2012

The Unlv Xps Facility – Research Opportunities, Allen L. Johnson

NSTec UNLV Symposium

XPS Outline

•XPS – what is it?

•How is it done?

•What are its limitations?

•Future direction – radioactive samples

–Sample containment and transport
–Sputter controls
–Radiation limits

•Summary


Pmts And Radiation/Particle Detection Technologies, Brent Davis Feb 2012

Pmts And Radiation/Particle Detection Technologies, Brent Davis

NSTec UNLV Symposium

Describes technical standards for equipment in the field of Nuclear and Optical Physics.


Unlv Center For Materials And Structures: Structural Response Due To Blast Loadingand Dynamic Material Characterization, Brendan O'Toole, Mohamed Trabia, Jagadeep Thota Feb 2012

Unlv Center For Materials And Structures: Structural Response Due To Blast Loadingand Dynamic Material Characterization, Brendan O'Toole, Mohamed Trabia, Jagadeep Thota

NSTec UNLV Symposium

Presentation Outline

  • Objectives of our Explosives Related Research
  • Computational Analysis Approach
  • Blast Project Summaries
  • Dynamic Material Characterization
  • Potential Collaborative Projects

  • Development Of Ion Beam Nuclear Transmutation Doping (Ibntd) For Novel Electronics In Extreme Conditions, Michael G. Pravica, Noel A. Guardala, Jack L. Price Feb 2012

    Development Of Ion Beam Nuclear Transmutation Doping (Ibntd) For Novel Electronics In Extreme Conditions, Michael G. Pravica, Noel A. Guardala, Jack L. Price

    NSTec UNLV Symposium

    Development of IBNTD for electronics under extreme conditions.

    •We hope to create novel wide bandgap devices using Ion Beam Nuclear Transmutation Doping (IBNTD). These devices may be used as rugged high power switches, and high current/low noise amplifiers. Diamond in itself represents a “Holy Grail” for electrical applications due to its very high thermal conductivity and excellent electrical characteristics.
    •We also hope to develop devices that can convert the enormous energy from high-energy nuclear particles (α2+,β-,β+, γparticles) into useful electricity and thus harness the enormous energy still contained in “spent” nuclear fuel. Developing these direct energy conversion (DEC) devices would …


    Overview Of Nstec Plasma Focus Tubes And Magnetohydrodynamic Modeling Capabilities, Tim Meehan Feb 2012

    Overview Of Nstec Plasma Focus Tubes And Magnetohydrodynamic Modeling Capabilities, Tim Meehan

    NSTec UNLV Symposium

    •Brief Description of how DPFs work, in general what they are useful for.
    •DPF devices that we have at NSTec
    •Using MHD modeling software to optimize designs and predict performance
    •Neutron Resonance Spectroscopy


    National Center For Nuclear Security, Veraun Chipman, Amanda Klingensmith, Cathy Snelson Feb 2012

    National Center For Nuclear Security, Veraun Chipman, Amanda Klingensmith, Cathy Snelson

    NSTec UNLV Symposium

    National Center for Nuclear Security (NCNS) Mission

    •Chartered mission is to enhance the Nation’s verification and detection capabilities in support of nuclear arms control and nonproliferation through R&D activities at the NNSS
    •Three focus areas
    –Treaty Verification Technologies
    –Nonproliferation Technologies
    –Technical Nuclear Forensics


    2011 Research Highlights, Yusheng Zhao Feb 2012

    2011 Research Highlights, Yusheng Zhao

    NSTec UNLV Symposium

    Overview

    •Center Mission and Cluster Tasks
    •Recent Scientific Achievements
    •Current & Future Developments


    Team Las Vegas Solar Decathlon 2013: Team Selection Celebration, University Of Nevada, Las Vegas. Solar Decathlon Team. Feb 2012

    Team Las Vegas Solar Decathlon 2013: Team Selection Celebration, University Of Nevada, Las Vegas. Solar Decathlon Team.

    DesertSol: Marketing and Promotion

    This is a flyer for a celebration of UNLV being selected to participate in the 2013 Solar Decathlon competition.


    Estimation Of Performance Indices For The Planning Of Sustainable Transportation Systems, Pankaj Maheshwari, Alexander Paz, Pushkin Kachroo Jan 2012

    Estimation Of Performance Indices For The Planning Of Sustainable Transportation Systems, Pankaj Maheshwari, Alexander Paz, Pushkin Kachroo

    Graduate Publications & Presentations

    What is sustainable transportation system?

    Fulfill the needs of current generations without compromising the ability of future generations

    Utilize resources without compromising their health and productivity Leads to development that improves quality of life

    Assimilate economic, ecological, social, and bio-physical components of resource ecosystems

    Minimize the use of renewable and non-renewable resources, provide affordability and equity between generations


    Take Pride In America Phase Iii: Quarterly Progress Report, Period Covering October 25, 2011-January 24, 2012, Margaret N. Rees Jan 2012

    Take Pride In America Phase Iii: Quarterly Progress Report, Period Covering October 25, 2011-January 24, 2012, Margaret N. Rees

    Anti-littering Programs

    • The GIS database was shared with the Mojave Desert Ecosystem Project.
    • Total attendance during Hector’s Helpers meetings exceeded 250.
    • America Recycles Day involved over 25,000 people.
    • Recruiting procedures were developed for the volunteer monitoring program.

    The University of Nevada Las Vegas Public Lands Institute (PLI) has designed the Take Pride in America (TPIA) Phase III work plan based on the strategic plan developed by the Southern Nevada Agency Partnership (SNAP) anti-litter and desert dumping team during Phase II of the program.


    Take Pride In America In Southern Nevada: Quarterly Progress Report, Period Covering October 6, 2011-January 5, 2012, Margaret N. Rees Jan 2012

    Take Pride In America In Southern Nevada: Quarterly Progress Report, Period Covering October 6, 2011-January 5, 2012, Margaret N. Rees

    Anti-littering Programs

    • A total of 11 clean-up events were conducted this quarter.
    • The Interagency Anti-Litter Team met twice this quarter.
    • The redesign of the website continued.
    • A draft Judicial System Analysis report was presented to the Interagency Law Enforcement Team for review. The Executive Director requested that the Law Enforcement Team provide written comments to include within the Judicial Analysis. Once these comments are incorporated into the report, it will be submitted in compliance with the task agreement.


    Health Effects Associated With Foreclosure: A Secondary Analysis Of Hospital Discharge Data, Nancy Menzel, Sheniz Moonie, Melva V. Thompson-Robinson Jan 2012

    Health Effects Associated With Foreclosure: A Secondary Analysis Of Hospital Discharge Data, Nancy Menzel, Sheniz Moonie, Melva V. Thompson-Robinson

    Nursing Faculty Publications

    Objectives. The purpose of this study was to assess the health effects of high home foreclosure rates in an area of the United States of America and the utility of hospital discharge data for this purpose. Methods. We analyzed hospital discharge data from three postal zip codes using the principal diagnosis for 25 Diagnostic Related Groups associated with stress. Descriptive statistics were used to characterize hospital discharge rates for each condition by year and zip code. To test for differences across time, the Cochran-Armitage trend test was performed. Results. Most conditions did not demonstrate a statistical change between …


    Minimotif Miner 3.0: Database Expansion And Significantly Improved Reduction Of False-Positive Predictions From Consensus Sequences., Tian Mi, Jerlin Camilus Merlin, Sandeep Deverasetty, Michael R. Gryk, Travis J. Bill, Andrew W. Brooks, Logan Lee, Viraj Rathnayake, Christian A. Ross, David P. Sargeant, Christy L. Strong, Paula Watts, Sanguthevar Rajasekaran, Martin Schiller Jan 2012

    Minimotif Miner 3.0: Database Expansion And Significantly Improved Reduction Of False-Positive Predictions From Consensus Sequences., Tian Mi, Jerlin Camilus Merlin, Sandeep Deverasetty, Michael R. Gryk, Travis J. Bill, Andrew W. Brooks, Logan Lee, Viraj Rathnayake, Christian A. Ross, David P. Sargeant, Christy L. Strong, Paula Watts, Sanguthevar Rajasekaran, Martin Schiller

    Life Sciences Faculty Research

    Minimotif Miner (MnM available at http://minimotifminer.org or http://mnm.engr.uconn.edu) is an online database for identifying new minimotifs in protein queries. Minimotifs are short contiguous peptide sequences that have a known function in at least one protein. Here we report the third release of the MnM database which has now grown 60-fold to approximately 300,000 minimotifs. Since short minimotifs are by their nature not very complex we also summarize a new set of false-positive filters and linear regression scoring that vastly enhance minimotif prediction accuracy on a test data set. This online database can be used to predict new functions in proteins …


    Hrc Enews — 2012 Winter, Megan M. Iudice Jan 2012

    Hrc Enews — 2012 Winter, Megan M. Iudice

    Publications (HRC)

    This issue contains staff accomplishments and announcements, event listings, and a "new faces" listing for new staff, affiliates, and researchers.


    Using Image Processing Techniques To Estimate The Air Quality, Ernesto Zamora Jan 2012

    Using Image Processing Techniques To Estimate The Air Quality, Ernesto Zamora

    McNair Poster Presentations

    The color of the sky varies depending on the composition of the air. The particles lingering in the atmosphere scatter the components of the light based on their wavelength in relation to particle size. Thus, the color of the sky depends on what wavelengths are scattered while the light travels through our atmosphere.

    By analyzing the color of the sky using computer image processing, it is possible to determine the quality of the air in an area. It is possible to classify pictures of the sky into clean or polluted air and have a computer estimate the category any other …


    A Synthesis Of Aquatic Science For Management Of Lakes Mead And Mohave: U.S. Geological Survey Circular 1381, Michael R. Rosen, Kent Turner, Steven L. Goodbred, Jennell M. Miller Jan 2012

    A Synthesis Of Aquatic Science For Management Of Lakes Mead And Mohave: U.S. Geological Survey Circular 1381, Michael R. Rosen, Kent Turner, Steven L. Goodbred, Jennell M. Miller

    Public Lands Institute Publications

    Lake Mead provides many significant benefits that have made the modern development of the southwestern United States possible. The lake also provides important aquatic habitat for a wide variety of wildlife including endangered species, and a diversity of world-class water based recreational opportunities for more than 8 million visitors annually. It is one of the most extensively used and intensively monitored reservoirs in the United States. The largest reservoir by volume in the United States, it supplies critical storage of water supplies for more than 25 million people in three western states (California, Arizona, and Nevada). Storage within Lake Mead …


    Environment And Sustainability In Nevada, Mark J. Salvaggio, Robert Futrell Jan 2012

    Environment And Sustainability In Nevada, Mark J. Salvaggio, Robert Futrell

    Social Health of Nevada Reports

    When the inaugural Earth Day launched the first environmental decade in the U.S. more than forty years ago, protecting our air, water, land and other natural resources seemed a relatively straightforward task. Environmental polluters and exploiters would be brought to heel by tough laws. The U.S. and other industrialized nations responded to quality of life concerns associated with environmental degradation by adopting dozens of major environmental and resource policies and creating new institutions such as the U.S. Environmental Protection Agency to manage environmental programs. Following these national developments, states and local communities began systematic efforts to address environmental problems.


    Team Las Vegas Solar Decathlon 2013: Quickfacts, University Of Nevada, Las Vegas. Solar Decathlon Team. Jan 2012

    Team Las Vegas Solar Decathlon 2013: Quickfacts, University Of Nevada, Las Vegas. Solar Decathlon Team.

    DesertSol: Planning and Design

    This is a promotional pamphlet designed by Team Las Vegas for the 2013 Solar Decathlon competition. The pamphlet was used to gain support for the project and to offer some "quick facts" about the team, the project, and the competition.


    Desertsol: Sponsorship Packet, University Of Nevada, Las Vegas. Solar Decathlon Team. Jan 2012

    Desertsol: Sponsorship Packet, University Of Nevada, Las Vegas. Solar Decathlon Team.

    DesertSol: Planning and Design

    This is the Sponsorship Packet created by Team Las Vegas for the DesertSol project house to gain financial support fromLas Vegas community partner. The packet provides details on the mission and vision of theDesertSol project, the competition, and how sponsors can help the team.


    Desertsol: Promotional Flyer, University Of Nevada, Las Vegas. Solar Decathlon Team. Jan 2012

    Desertsol: Promotional Flyer, University Of Nevada, Las Vegas. Solar Decathlon Team.

    DesertSol: Planning and Design

    This is a promotional flyer prepared by Team Las Vegas to gain support in the Las Vegas community for the DesertSol project. The document contains brief information about the DOE 2013 Solar Decathlon competition and about Team Las Vegas.


    Thomson-Resonant Interference Effects In Elastic X-Ray Scattering Near The Cl K Edge Of Hcl, Stephane Carniato, P. Selles, Loic Journel, Renaud Guillemin, Wayne C. Stolte, L. El Khoury, T. Marin, Faris Gel'mukhanov, Dennis W. Lindle, Marc Simon Jan 2012

    Thomson-Resonant Interference Effects In Elastic X-Ray Scattering Near The Cl K Edge Of Hcl, Stephane Carniato, P. Selles, Loic Journel, Renaud Guillemin, Wayne C. Stolte, L. El Khoury, T. Marin, Faris Gel'mukhanov, Dennis W. Lindle, Marc Simon

    Chemistry and Biochemistry Faculty Research

    We experimentally observed interference effects in elastic x-ray scattering from gas-phase HCl in the vicinity of the Cl K edge. Comparison to theory identifies these effects as interference effects between non-resonant elastic Thomson scattering and resonant Raman scattering. The results indicate the non-resonant Thomson and resonant Raman contributions are of comparable strength. The measurements also exhibit strong polarization dependence, allowing an easy identification of the resonant and non-resonant contributions.


    A New Method To Derive Electronegativity From Resonant Inelastic X-Ray Scattering, Stephane Carniato, Loic Journel, Renaud Guillemin, Maria Novella Piancastelli, Wayne C. Stolte, Dennis W. Lindle, Marc Simon Jan 2012

    A New Method To Derive Electronegativity From Resonant Inelastic X-Ray Scattering, Stephane Carniato, Loic Journel, Renaud Guillemin, Maria Novella Piancastelli, Wayne C. Stolte, Dennis W. Lindle, Marc Simon

    Chemistry and Biochemistry Faculty Research

    Electronegativity is a well-known property of atoms and substituent groups. Because there is no direct way to measure it, establishing a useful scale for electronegativity often entails correlating it to another chemical parameter; a wide variety of methods have been proposed over the past 80 years to do just that. This work reports a new approach that connects electronegativity to a spectroscopic parameter derived from resonant inelastic x-ray scattering. The new method is demonstrated using a series of chlorine-containing compounds, focusing on the Cl 2p−1LUMO1 electronic states reached after Cl 1s→LUMO core excitation and subsequent KL radiative decay. Based on …


    Resonant Inelastic X-Ray Scattering Of Methyl Chloride At The Chlorine K Edge, L. El Khoury, Loic Journel, Renaud Guillemin, Stephane Carniato, Wayne C. Stolte, T. Marin, Dennis W. Lindle, Marc Simon Jan 2012

    Resonant Inelastic X-Ray Scattering Of Methyl Chloride At The Chlorine K Edge, L. El Khoury, Loic Journel, Renaud Guillemin, Stephane Carniato, Wayne C. Stolte, T. Marin, Dennis W. Lindle, Marc Simon

    Chemistry and Biochemistry Faculty Research

    We present a combined experimental and theoretical study of isolated CH3Cl molecules using resonant inelastic x-ray scattering (RIXS). The high-resolution spectra allow extraction of information about nuclear dynamics in the core-excited molecule. Polarization-resolved RIXS spectra exhibit linear dichroism in the spin-orbit intensities, a result interpreted as due to chemical environment and singlet-triplet exchange in the molecular core levels. From analysis of the polarization-resolved data, Cl 2px, y and 2pz electronic populations can be determined.