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24,703 Matching Results
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Archer City East Quadrangle
Satellite image topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
2011
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Art Lies: A Contemporary Art Quarterly
This is the official website for Art Lies, a print quarterly arts publication. Founded in Texas, Art Lies offers a critical examination of artistic practice, theory, and discourse on and about the contemporary arts. The first issue of Art Lies was published in 1994. The site includes news, information about current and past issues, the journal's editorial policies, advertising rates. Art Lies ceased operation in 2011.
Date:
2011
Creator:
Art Lies
Object Type:
Website
System:
The UNT Digital Library
Art Lies, Volume 68, Spring/Summer 2011
Journal containing essays, commentaries, and exhibition information regarding Texas artwork and other contemporary art issues.
Date:
2011
Creator:
Mueller, Kurt
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Assessing the operational life of flexible printed boards intended for continuous flexing applications : a case study.
Through the vehicle of a case study, this paper describes in detail how the guidance found in the suite of IPC (Association Connecting Electronics Industries) publications can be applied to develop a high level of design assurance that flexible printed boards intended for continuous flexing applications will satisfy specified lifetime requirements.
Date:
January 1, 2011
Creator:
Beck, David Franklin
Object Type:
Report
System:
The UNT Digital Library
Assessment of Biomass Resources in Afghanistan
Afghanistan is facing many challenges on its path of reconstruction and development. Among all its pressing needs, the country would benefit from the development and implementation of an energy strategy. In addition to conventional energy sources, the Afghan government is considering alternative options such as energy derived from renewable resources (wind, solar, biomass, geothermal). Biomass energy is derived from a variety of sources -- plant-based material and residues -- and can be used in various conversion processes to yield power, heat, steam, and fuel. This study provides policymakers and industry developers with information on the biomass resource potential in Afghanistan for power/heat generation and transportation fuels production. To achieve this goal, the study estimates the current biomass resources and evaluates the potential resources that could be used for energy purposes.
Date:
January 1, 2011
Creator:
Milbrandt, A. & Overend, R.
Object Type:
Report
System:
The UNT Digital Library
Assessment of public involvement
"This report analyzed several meetings held by Texas Department of Transportation (TxDOT), reviewed TxDOT's Literature and regulations, and assessed documents from other states. These synthesized findings led to the development of a policy statement and recommendations for consideration by TxDOT staff."
Date:
January 2011
Creator:
Lewis, Carol Abek; Goodwin, Gwendolyn C. & Sabaroche, Sascha
Object Type:
Report
System:
The Portal to Texas History
Assessment of Styrene Oxide Neurotoxicity Using In Vitro Auditory Cortex Networks
Article discussing an assessment of styrene oxide neurotoxicity using in vitro auditory cortex networks.
Date:
2011
Creator:
Gopal, Kamakshi V.; Wu, Calvin; Moore, Ernest J. & Gross, Guenter W.
Object Type:
Article
System:
The UNT Digital Library
Atomic-Resolution STEM at Low Primary Energies
Aberration-corrected scanning transmission electron microscopes (STEMs) can now produce electron probes as small as 1 {angstrom} at 60 keV. This level of performance allows individual light atoms to be imaged in various novel materials including graphene, monolayer boron nitride, and carbon nanotubes. Operation at 60 keV avoids direct knock-on damage in such materials, but some radiation damage often remains, and limits the maximum usable electron dose. Elemental identification by electron energy loss spectroscopy (EELS) is then usefully supplemented by annular dark-field (ADF) imaging, for which the signal is much larger and the spatial resolution significantly better. Because of its strong dependence on the atomic number Z, ADF can be used to identify the chemical type of individual atoms, both heavy and light. We review the instrumental requirements for atomic resolution imaging at 60 keV and lower energies, and we illustrate the kinds of studies that have now become possible by ADF images of graphene, monolayer BN, and single-wall carbon nanotubes, and by ADF images and EEL spectra of carbon nanotubes containing nanopods filled with single atoms of Er. We then discuss likely future developments.
Date:
January 1, 2011
Creator:
Krivanek, Ondrej L.; Chisholm, Matthew F; Dellby, N. & Murfitt, M. F.
Object Type:
Book
System:
The UNT Digital Library
Azimuthal decorrelations and multiple parton interactions in photon+2 jet and photon+3 jet events in ppbar collisions at sqrt{s}=1.96 TeV
Samples of inclusive {gamma} + 2 jet and {gamma} + 3 jet events collected by the D0 experiment with an integrated luminosity of about 1 fb{sup -1} in p{bar p} collisions at {radical}s = 1.96 TeV are used to measure cross sections as a function of the angle in the plane transverse to the beam direction between the transverse momentum (p{sub T}) of the {gamma} + leading jet system (jets are ordered in p{sub T}) and p{sub T} of the other jet for {gamma} + 2 jet, or p{sub T} sum of the two other jets for {gamma} + 3 jet events. The results are compared to different models of multiple parton interactions (MPI) in the pythia and sherpa Monte Carlo (MC) generators. The data indicate a contribution from events with double parton (DP) interactions and are well described by predictions provided by the pythia MPI models with p{sub T}-ordered showers and by sherpa with the default MPI model. The {gamma} + 2 jet data are also used to determine the fraction of events with DP interactions as a function of the azimuthal angle and as a function of the second jet p{sub T}.
Date:
January 1, 2011
Creator:
Abazov, Victor Mukhamedovich; /Dubna, JINR; Abbott, Braden Keim; U., /Oklahoma; Acharya, Bannanje Sripath; Inst., /Tata et al.
Object Type:
Article
System:
The UNT Digital Library
Backyard birds in Texas
This booklet contains information about providing a safe environment for birds that occupy residential areas and acts as a reference guide to identify different species of birds.
Date:
2011
Creator:
Klym, Mark
Object Type:
Pamphlet
System:
The Portal to Texas History
Barkman Quadrangle
Satellite image topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
2011
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
[Baruch the Scribe, Mother Falcon, Manned Missiles, Young & Brave, The Hope Trust, Peopleodian poster]
Poster advertising a concert by Baruch the Scribe, Mother Falcon, Manned Missiles, Young & Brave, The Hope Trust, and Peopleodian on Saturday, September 3, 2011, at Hailey's, Denton, Texas. Poster features event details and participating bands in large, multi-colored text overlaying an illustration of an analog alarm clock. Event was billed as a "Free Back 2 School Bash" presented by the Dentoneer.
Date:
2011
Creator:
Muzquiz, Ramon
Object Type:
Poster
System:
The UNT Digital Library
The Basin Quadrangle
Satellite image topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
2011
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Basis to demonstrate compliance with the National Emission Standards for Hazardous Air Pollutants for the Stand-off Experiments Range
The purpose of this report is to provide the basis and the documentation to demonstrate general compliance with the National Emission Standard for Hazardous Air Pollutants (NESHAPS) 40 CFR 61 Subpart H, “National Emission Standards for Emissions of Radionuclides Other Than Radon from Department of Energy Facilities,” (the Standard) for outdoor linear accelerator operations at the Idaho National Laboratory (INL) Stand-off Experiments Range (SOX). The intent of this report is to inform and gain acceptance of this methodology from the governmental bodies regulating the INL.
Date:
January 1, 2011
Creator:
Sandvig, Michael
Object Type:
Report
System:
The UNT Digital Library
Battery Ownership Model: A Tool for Evaluating the Economics of Electrified Vehicles and Related Infrastructure; Preprint
Electric vehicles could significantly reduce greenhouse gas (GHG) emissions and dependence on imported petroleum. However, for mass adoption, EV costs have historically been too high to be competitive with conventional vehicle options due to the high price of batteries, long refuel time, and a lack of charging infrastructure. A number of different technologies and business strategies have been proposed to address some of these cost and utility issues: battery leasing, battery fast-charging stations, battery swap stations, deployment of charge points for opportunity charging, etc. In order to investigate these approaches and compare their merits on a consistent basis, the National Renewable Energy Laboratory (NREL) has developed a new techno-economic model. The model includes nine modules to examine the levelized cost per mile for various types of powertrain and business strategies. The various input parameters such as vehicle type, battery, gasoline, and electricity prices; battery cycle life; driving profile; and infrastructure costs can be varied. In this paper, we discuss the capabilities of the model; describe key modules; give examples of how various assumptions, powertrain configurations, and business strategies impact the cost to the end user; and show the vehicle's levelized cost per mile sensitivity to seven major operational parameters.
Date:
January 1, 2011
Creator:
O'Keefe, M.; Brooker, A.; Johnson, C.; Mendelsohn, M.; Neubauer, J. & Pesaran, A.
Object Type:
Article
System:
The UNT Digital Library
Beam-beam simulation code BBSIM for particle accelerators
A highly efficient, fully parallelized, six-dimensional tracking model for simulating interactions of colliding hadron beams in high energy ring colliders and simulating schemes for mitigating their effects is described. The model uses the weak-strong approximation for calculating the head-on interactions when the test beam has lower intensity than the other beam, a look-up table for the efficient calculation of long-range beam-beam forces, and a self-consistent Poisson solver when both beams have comparable intensities. A performance test of the model in a parallel environment is presented. The code is used to calculate beam emittance and beam loss in the Tevatron at Fermilab and compared with measurements. They also present results from the studies of stwo schemes proposed to compensate the beam-beam interactions: (a) the compensation of long-range interactions in the Relativistic Heavy Ion Collider (RHIC) at Brookhaven and the Large Hadron Collider (LHC) at CERN with a current carrying wire, (b) the use of a low energy electron beam to compensate the head-on interactions in RHIC.
Date:
January 1, 2011
Creator:
Kim, Hyung J. & Sen, Tanaji
Object Type:
Article
System:
The UNT Digital Library
Berea Quadrangle
Satellite image topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
2011
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Bhopal Chemical Disaster
Encyclopedia article describing the devastating effects of a chemical disaster that took place in Bhopal, India in 1984. The author describes the effects of the chemical disaster and the events that followed.
Date:
2011
Creator:
Gupta, Kailash
Object Type:
Article
System:
The UNT Digital Library
Biennial Report of the Texas Correctional Office on Offenders wtih Medical or Mental Impairments: 2011
This report complies with state legislation addressing all aspects of the criminal justice system.
Date:
2011
Creator:
Texas Correctional Office on Offenders with Medical and Mental Impairments
Object Type:
Report
System:
The Portal to Texas History
Big Bend Ranch Biking Guide : The Other Side Of Nowhere
"This trail guide provides directional information for 28 specific rides" located at Big Bend Ranch State Park.(p. 3).
Date:
January 2011
Creator:
Phillips, Bundy; Sholly, Dan R.; Blizzard, Karen Hoffman & Beckcom, Christopher
Object Type:
Book
System:
The Portal to Texas History
Big Bend Ranch State Park Discovery Map
Topographical map of Big Bend Ranch State Park showing trails, campsites, and other important information necessary for prospective hikers and campers.
Date:
January 2011
Creator:
Texas. Parks and Wildlife Department.
Object Type:
Map
System:
The Portal to Texas History
Big Country Angler's Guide: Tips and Opportunities
Guide to fishing locations and common fish types at Texas State Parks in the Big Country region around Abilene.
Date:
January 2011
Creator:
Benson, Lance; Cole, Robert; Dumont, Spencer & Neely, Ben
Object Type:
Pamphlet
System:
The Portal to Texas History
The BigBOSS Experiment
BigBOSS will obtain observational constraints that will bear on three of the four 'science frontier' questions identified by the Astro2010 Cosmology and Fundamental Phyics Panel of the Decadal Survey: Why is the universe accelerating; what is dark matter and what are the properties of neutrinos? Indeed, the BigBOSS project was recommended for substantial immediate R and D support the PASAG report. The second highest ground-based priority from the Astro2010 Decadal Survey was the creation of a funding line within the NSF to support a 'Mid-Scale Innovations' program, and it used BigBOSS as a 'compelling' example for support. This choice was the result of the Decadal Survey's Program Priorization panels reviewing 29 mid-scale projects and recommending BigBOSS 'very highly'.
Date:
January 1, 2011
Creator:
Schelgel, D.; Abdalla, F.; Abraham, T.; Ahn, C.; Allende Prieto, C.; Annis, J. et al.
Object Type:
Report
System:
The UNT Digital Library
Biofuel impacts on water.
Sandia National Laboratories and General Motors Global Energy Systems team conducted a joint biofuels systems analysis project from March to November 2008. The purpose of this study was to assess the feasibility, implications, limitations, and enablers of large-scale production of biofuels. 90 billion gallons of ethanol (the energy equivalent of approximately 60 billion gallons of gasoline) per year by 2030 was chosen as the book-end target to understand an aggressive deployment. Since previous studies have addressed the potential of biomass but not the supply chain rollout needed to achieve large production targets, the focus of this study was on a comprehensive systems understanding the evolution of the full supply chain and key interdependencies over time. The supply chain components examined in this study included agricultural land use changes, production of biomass feedstocks, storage and transportation of these feedstocks, construction of conversion plants, conversion of feedstocks to ethanol at these plants, transportation of ethanol and blending with gasoline, and distribution to retail outlets. To support this analysis, we developed a 'Seed to Station' system dynamics model (Biofuels Deployment Model - BDM) to explore the feasibility of meeting specified ethanol production targets. The focus of this report is water and its linkage …
Date:
January 1, 2011
Creator:
Tidwell, Vincent Carroll; Malczynski, Leonard A. & Sun, Amy Cha-Tien
Object Type:
Report
System:
The UNT Digital Library