Partner
UNT Libraries Government Documents Department
830
UNT Libraries Special Collections
129
Oklahoma Historical Society
116
UNT Libraries
101
UNT Music Library
55
Sterling Municipal Library
30
Sweetwater/Nolan County City-County Library
27
San Antonio Public Library
25
National Museum of the Pacific War/Admiral Nimitz Foundation
20
Carl Albert Congressional Research and Studies Center
17
62 More
Collection
Office of Scientific & Technical Information Technical Reports
452
Texas Digital Newspaper Program
332
Congressional Research Service Reports
190
Oklahoma Digital Newspaper Program
138
Tocker Foundation Grant
112
Government Accountability Office Reports
99
The Greensheet
74
LGBT Collections
59
Texas Stonewall Democratic Caucus Papers (The Dallas Way)
55
College of Music Recordings
54
112 More
Degree Department
Degree Discipline
Degree Level
Country
States
Year
Month
On identifying the specular reflection of sunlight in earth-monitoring satellite data.
Among the background signals commonly seen by Earth-monitoring satellites is the specular reflection of sunlight off of Earth's surface, commonly referred to as a glint. This phenomenon, involving liquid or ice surfaces, can result in the brief, intense illumination of satellite sensors appearing from the satellite perspective to be of terrestrial origin. These glints are important background signals to be able to identify with confidence, particularly in the context of analyzing data from satellites monitoring for transient surface or atmospheric events. Here we describe methods for identifying glints based on the physical processes involved in their production, including spectral fitting and polarization measurements. We then describe a tool that, using the WGS84 spheroidal Earth model, finds the latitude and longitude on Earth where a reflection of this type could be produced, given input Sun and satellite coordinates. This tool enables the user to determine if the surface at the solution latitude and longitude is in fact reflective, thus identifying the sensor response as a true glint or an event requiring further analysis.
Date:
March 1, 2009
Creator:
Nelsen, James M., Jr.; Hohlfelder, Robert James; Jackson, Dale Clayton & Longenbaugh, Randolph S.
Object Type:
Report
System:
The UNT Digital Library
OncoLog, Volume 54, Number 3, March 2009
Newsletter from the University of Texas System Cancer Center, M.D. Anderson Hospital and Tumor Institute discussing cancer care and research to inform physicians of recent developments in the field.
Date:
March 2009
Creator:
University of Texas M.D. Anderson Cancer Center
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Opportunities for Combined Heat and Power in Data Centers
Data centers represent a rapidly growing and very energy intensive activity in commercial, educational, and government facilities. In the last five years the growth of this sector was the electric power equivalent to seven new coal-fired power plants. Data centers consume 1.5% of the total power in the U.S. Growth over the next five to ten years is expected to require a similar increase in power generation. This energy consumption is concentrated in buildings that are 10-40 times more energy intensive than a typical office building. The sheer size of the market, the concentrated energy consumption per facility, and the tendency of facilities to cluster in 'high-tech' centers all contribute to a potential power infrastructure crisis for the industry. Meeting the energy needs of data centers is a moving target. Computing power is advancing rapidly, which reduces the energy requirements for data centers. A lot of work is going into improving the computing power of servers and other processing equipment. However, this increase in computing power is increasing the power densities of this equipment. While fewer pieces of equipment may be needed to meet a given data processing load, the energy density of a facility designed to house this higher …
Date:
March 1, 2009
Creator:
Darrow, Ken & Hedman, Bruce
Object Type:
Report
System:
The UNT Digital Library
Overview of Nevada Test Site Radioactive and Mixed Waste Disposal Operations
The U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Site Office Environmental Management Program is responsible for carrying out the disposal of on-site and off-site generated low-level radioactive waste (LLW) and low-level radioactive mixed waste (MW) at the Nevada Test Site (NTS). Core elements of this mission are ensuring safe and cost-effective disposal while protecting workers, the public, and the environment. This paper focuses on the impacts of new policies, processes, and opportunities at the NTS related to LLW and MW. Covered topics include: the first year of direct funding for NTS waste disposal operations; zero tolerance policy for non-compliant packages; the suspension of mixed waste disposal; waste acceptance changes; DOE Consolidated Audit Program (DOECAP) auditing; the 92-Acre Area closure plan; new eligibility requirements for generators; and operational successes with unusual waste streams.
Date:
March 1, 2009
Creator:
Carilli, J. T.; Krenzien, S. K.; Geisinger, R. G.; Gordon, S. J. & Quinn, B.
Object Type:
Article
System:
The UNT Digital Library
Owens Corning and Silicon Valley Power Partner to Make Energy Savings a Reality (Brochure)
This case study describes how the Owens Corning plant in Santa Clara, California, participated in Save Energy Now energy assessments and used Silicon Valley Power utility incentives to save $252,000.
Date:
March 1, 2009
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Panola Watchman (Carthage, Tex.), Vol. [137], No. 17, Ed. 1 Sunday, March 1, 2009
Semiweekly newspaper from Carthage, Texas that includes local, state, and national news along with advertising.
Date:
March 1, 2009
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
[Paul E. Scott's Business Card]
Paul E. Scott's business card with contact information.
Date:
March 2009
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
Pedestrian and traffic safety in parking lots at SNL/NM : audit background report.
This report supplements audit 2008-E-0009, conducted by the ES&H, Quality, Safeguards & Security Audits Department, 12870, during fall and winter of FY 2008. The study evaluates slips, trips and falls, the leading cause of reportable injuries at Sandia. In 2007, almost half of over 100 of such incidents occurred in parking lots. During the course of the audit, over 5000 observations were collected in 10 parking lots across SNL/NM. Based on benchmarks and trends of pedestrian behavior, the report proposes pedestrian-friendly features and attributes to improve pedestrian safety in parking lots. Less safe pedestrian behavior is associated with older parking lots lacking pedestrian-friendly features and attributes, like those for buildings 823, 887 and 811. Conversely, safer pedestrian behavior is associated with newer parking lots that have designated walkways, intra-lot walkways and sidewalks. Observations also revealed that motorists are in widespread noncompliance with parking lot speed limits and stop signs and markers.
Date:
March 1, 2009
Creator:
Sanchez, Paul Ernest
Object Type:
Report
System:
The UNT Digital Library
PHEV Battery Trade-Off Study and Standby Thermal Contro
Describes NREL's R&D to optimize the design of batteries for plug-in hybrid electric vehicles to meet established requirements at minimum cost.
Date:
March 1, 2009
Creator:
Smith, K.; Markel, T. & Pesaran, A.
Object Type:
Presentation
System:
The UNT Digital Library
PHEV Market Introduction Workshop Summary Report
The Plug-In Hybrid Electric Vehicle (PHEV) Market Introduction Study Workshop was attended by approximately forty representatives from various stakeholder organizations. The event took place at the Hotel Helix in Washington, D.C. on December 1-2, 2008. The purpose of this workshop was to follow-up last year s PHEV Value Proposition Study, which showed that indeed, a viable and even thriving market for these vehicles can exist by the year 2030. This workshop aimed to identify immediate action items that need to be undertaken to achieve a successful market introduction and ensuing large market share of PHEVs in the U.S. automotive fleet.
Date:
March 1, 2009
Creator:
Weber, Adrienne M & Sikes, Karen R
Object Type:
Report
System:
The UNT Digital Library
Polk County Enterprise (Livingston, Tex.), Vol. 127, No. 18, Ed. 1 Sunday, March 1, 2009
Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date:
March 1, 2009
Creator:
Reddell, Valerie
Object Type:
Newspaper
System:
The Portal to Texas History
Power Transfer Potential to the Southeast in Response to a Renewable Portfolio Standard: Interim Report 1
The power transfer potential for bringing renewable energy into the Southeast in response to a renewable portfolio standard (RPS) will depend not only on available transmission capacity but also on electricity supply and demand factors. This interim report examines how the commonly used EIA NEMS and EPRI NESSIE energy equilibrium models are considering such power transfers. Using regional estimates of capacity expansion and demand, a base case for 2008, 2020 and 2030 are compared relative to generation mix, renewable deployments, planned power transfers, and meeting RPS goals. The needed amounts of regional renewable energy to comply with possible RPS levels are compared to inter-regional transmission capacities to establish a baseline available for import into the Southeast and other regions. Gaps in the renewable generation available to meet RPS requirements are calculated. The initial finding is that the physical capability for transferring renewable energy into the SE is only about 10% of what would be required to meet a 20% RPS. Issues that need to be addressed in future tasks with respect to modeling are the current limitations for expanding renewable capacity and generation in one region to meet the demand in another and the details on transmission corridors required to …
Date:
March 1, 2009
Creator:
Hadley, Stanton W & Key, Thomas S
Object Type:
Report
System:
The UNT Digital Library
Preliminary Assessment of ATR-C Capabilities to Provide Integral Benchmark Data for Key Structural/Matrix Materials that May be Used for Nuclear Data Testing and Analytical Methods Validation
The purpose of this research is to provide a fundamental computational investigation into the possible integration of experimental activities with the Advanced Test Reactor Critical (ATR-C) facility with the development of benchmark experiments. Criticality benchmarks performed in the ATR-C could provide integral data for key matrix and structural materials used in nuclear systems. Results would then be utilized in the improvement of nuclear data libraries and as a means for analytical methods validation. It is proposed that experiments consisting of well-characterized quantities of materials be placed in the Northwest flux trap position of the ATR-C. The reactivity worth of the material could be determined and computationally analyzed through comprehensive benchmark activities including uncertainty analyses. Experiments were modeled in the available benchmark model of the ATR using MCNP5 with the ENDF/B-VII.0 cross section library. A single bar (9.5 cm long, 0.5 cm wide, and 121.92 cm high) of each material could provide sufficient reactivity difference in the core geometry for computational modeling and analysis. However, to provide increased opportunity for the validation of computational models, additional bars of material placed in the flux trap would increase the effective reactivity up to a limit of 1$ insertion. For simplicity in assembly manufacture, …
Date:
March 1, 2009
Creator:
Bess, John D.
Object Type:
Report
System:
The UNT Digital Library
A Preliminary Investigation of Rapid Depressurization Phenomena Following a Sudden DLOFC in a VHTR
Air ingress has been identified as a potential threat for Very High Temperature gas-cooled Reactors (VHTR). Reactor components constructed of graphite will, at high temperatures, produce exothermic reactions in the presence of oxygen. The danger lies in the possibility of fuel element damage and core structural failure. Previous investigations of air ingress mechanisms have focused on thermal and molecular diffusion, density-driven stratified flow, and natural convection. Here, we investigate the possibility of a rapid ingress of air due to a Taylor wave expansion after a hypothetical sudden loss of coolant accident (LOCA) scenario in a VHTR. Our analysis starts with a one-dimensional shock tube simulation to simply illustrate the development of a Taylor wave with resulting reentrant flow. Then, a simulation is performed of an idealized two-dimensional axisymmetric representation of the lower plenum of General Atomics GT-MHR subjected to a hypothetical catastrophic break of the hot duct. Analysis shows the potential for significant and rapid air ingress into the reactor vessel in the case of a large break in the cooling system.
Date:
March 1, 2009
Creator:
Martineau, Richard C.; Berry, Ray A. & Knoll, Dana A.
Object Type:
Report
System:
The UNT Digital Library
Primary Care Case Management Primary Care Provider and Hospital List: Southeast Texas, March 2009
List of Primary Care Case Management program approved primary care providers, hospitals, specialists, and family planning providers, located in the Southeast Texas area.
Date:
March 2009
Creator:
Primary Care Case Management
Object Type:
Book
System:
The Portal to Texas History
The process for integrating the NNSA knowledge base.
From 2002 through 2006, the Ground Based Nuclear Explosion Monitoring Research & Engineering (GNEMRE) program at Sandia National Laboratories defined and modified a process for merging different types of integrated research products (IRPs) from various researchers into a cohesive, well-organized collection know as the NNSA Knowledge Base, to support operational treaty monitoring. This process includes defining the KB structure, systematically and logically aggregating IRPs into a complete set, and verifying and validating that the integrated Knowledge Base works as expected.
Date:
March 1, 2009
Creator:
Wilkening, Lisa K.; Carr, Dorthe Bame; Young, Christopher John; Hampton, Jeff (Lockheed Martin Mission Services, Houston, TX) & Martinez, Elaine
Object Type:
Report
System:
The UNT Digital Library
[Program: 73rd Annual NADSA Conference]
Program for a conference of the National Association of Dramatic and Speech Arts on March 11-14, 2009 and hosted by the Black Academy of Arts and Letters.
Date:
March 2009
Creator:
Black Academy of Arts and Letters
Object Type:
Pamphlet
System:
The UNT Digital Library
[Program: Black Theatre: The Making of a Movement]
Program for a theatrical performance directed by Woodie King, Jr. and produced by the Black Academy of Arts and Letters on March 12, 2009 at the Dallas Convention Center Theatre Complex.
Date:
March 2009
Creator:
Black Academy of Arts and Letters
Object Type:
Pamphlet
System:
The UNT Digital Library
[Program: Incognito]
Program for the play "Incognito," which was performed by Michael Fosberg and produced by the Black Academy of Arts and Letters on March 13-14, 2009 at the Clarence Muse Cafe Theatre.
Date:
March 2009
Creator:
Black Academy of Arts and Letters
Object Type:
Pamphlet
System:
The UNT Digital Library
[Program: Poets n' Jazz #3]
Program for a poetry and jazz performance event produced by the Black Academy of Arts and Letters on March 6-7, 2009 at the Clarence Muse Cafe Theatre.
Date:
March 2009
Creator:
Black Academy of Arts and Letters
Object Type:
Pamphlet
System:
The UNT Digital Library
Progress Update,” NETL CO2 Capture Technology for Existing Plants
Progress Update,” NETL CO2 Capture Technology for Existing Plants
Date:
March 1, 2009
Creator:
Holcomb, D. Huckaby and G. R.
Object Type:
Article
System:
The UNT Digital Library
Progresses in Ab Initio QM/MM Free Energy Simulations of Electrostatic Energies in Proteins: Accelerated QM/MM Studies of pKa, Redox Reactions and Solvation Free Energies
Hybrid quantum mechanical / molecular mechanical (QM/MM) approaches have been used to provide a general scheme for chemical reactions in proteins. However, such approaches still present a major challenge to computational chemists, not only because of the need for very large computer time in order to evaluate the QM energy but also because of the need for propercomputational sampling. This review focuses on the sampling issue in QM/MM evaluations of electrostatic energies in proteins. We chose this example since electrostatic energies play a major role in controlling the function of proteins and are key to the structure-function correlation of biological molecules. Thus, the correct treatment of electrostatics is essential for the accurate simulation of biological systems. Although we will be presenting here different types of QM/MM calculations of electrostatic energies (and related properties), our focus will be on pKa calculations. This reflects the fact that pKa of ionizable groups in proteins provide one of the most direct benchmarks for the accuracy of electrostatic models of macromolecules. While pKa calculations by semimacroscopic models have given reasonable results in many cases, existing attempts to perform pKa calculations using QM/MM-FEP have led to large discrepancies between calculated and experimental values. In this work, …
Date:
March 1, 2009
Creator:
Kamerlin, Shina C. L.; Haranczyk, Maciej & Warshel, Arieh
Object Type:
Article
System:
The UNT Digital Library
Proposed roadmap for overcoming legal and financial obstacles to carbon capture and sequestration
Many existing proposals either lack sufficient concreteness to make carbon capture and geological sequestration (CCGS) operational or fail to focus on a comprehensive, long term framework for its regulation, thus failing to account adequately for the urgency of the issue, the need to develop immediate experience with large scale demonstration projects, or the financial and other incentives required to launch early demonstration projects. We aim to help fill this void by proposing a roadmap to commercial deployment of CCGS in the United States.This roadmap focuses on the legal and financial incentives necessary for rapid demonstration of geological sequestration in the absence of national restrictions on CO2 emissions. It weaves together existing federal programs and financing opportunities into a set of recommendations for achieving commercial viability of geological sequestration.
Date:
March 1, 2009
Creator:
Jacobs, Wendy; Chohen, Leah; Kostakidis-Lianos, Leah & Rundell, Sara
Object Type:
Report
System:
The UNT Digital Library
Quality Control Analysis of Acoustic Doppler Current Profiler Data Collected on Offshore Platforms of the Gulf of Mexico
A report showing the Acoustic Doppler Current Profiler (ADCP) data collected on offshore platforms of the Gulf of Mexico.
Date:
March 2009
Creator:
Bender, L. C. & DiMarco, S. F.
Object Type:
Text
System:
The UNT Digital Library