Access
Resource Type
Partner
Collection
Office of Scientific & Technical Information Technical Reports
3,014
Congressional Research Service Reports
2,076
Government Accountability Office Reports
450
Texas State Publications
424
Texas State Auditor's Office: Reports
51
End of Term Publications
30
University Records
25
Technical Report Archive and Image Library
10
UNT Scholarly Works
8
Texas Society Sons of the American Revolution (TXSSAR)
6
11 More
Serial/Series Title
Fiscal Year 2011
138
112th Congress
91
Technical report (Texas Transportation Institute)
45
Fiscal Year 2010
42
Texas Sunset Advisory Commission Reports
20
Final report (Texas. Sunset Advisory Commission)
19
Fiscal Year 2012
18
Research report (University of Texas at Austin. Center for Transportation Research)
18
University of Texas System Reports
17
University of North Texas Investment Reports
14
224 More
Degree Department
Country
States
Year
Month
Language
6,116 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
6,116
next
08-ERD-071 Final Report: New Molecular Probes and Catalysts for Bioenergy Research
A major thrust in bioenergy research is to develop innovative methods for deconstructing plant cell wall polymers, such as cellulose and lignin, into simple monomers that can be biologically converted to ethanol and other fuels. Current techniques for monitoring a broad array of cell wall materials and specific degradation products are expensive and time consuming. To monitor various polymers and assay their breakdown products, molecular probes for detecting specific carbohydrates and lignins are urgently needed. These new probes would extend the limited biochemical techniques available, and enable realtime imaging of ultrastructural changes in plant cells. Furthermore, degradation of plant biomass could be greatly accelerated by the development of catalysts that can hydrolyze key cell wall polysaccharides and lignin. The objective of this project was to develop cheap and efficient DNA reagents (aptamers) used to detect and quantify polysaccharides, lignin, and relevant products of their breakdown. A practical goal of the research was to develop electrochemical aptamer biosensors, which could be integrated into microfluidic devices and used for high-throughput screening of enzymes or biological systems that degrade biomass. Several important model plant cell wall polymers and compounds were targeted for specific binding and purification of aptamers, which were then tested by …
Date:
March 7, 2011
Creator:
Thelen, M. P.; Rowe, A. A.; Siebers, A. K. & Jiao, Y.
System:
The UNT Digital Library
10 CFR 830 Major Modification Determination for Emergency Firewater Injection System Replacement
The continued safe and reliable operation of the ATR is critical to the Department of Energy (DOE) Office of Nuclear Energy (NE) mission. While ATR is safely fulfilling current mission requirements, a variety of aging and obsolescence issues challenge ATR engineering and maintenance personnel’s capability to sustain ATR over the long term. First documented in a series of independent assessments, beginning with an OA Environmental Safety and Health Assessment conducted in 2003, the issues were validated in a detailed Material Condition Assessment (MCA) conducted as a part of the ATR Life Extension Program in 2007.Accordingly, near term replacement of aging and obsolescent original ATR equipment has become important to ensure ATR capability in support of NE’s long term national missions. To that end, a mission needs statement has been prepared for a non-major system acquisition which is comprised of three interdependent sub-projects. The first project will replace the existent diesel-electrical bus (E-3), switchgear, and the fifty year old antiquated marine diesels with commercial power that is backed with safety-related emergency diesel generators (EDGs), switchgear, and uninterruptible power supply. The second project will replace the four, obsolete, original primary coolant pumps and motors. The third project, the subject of this major …
Date:
May 1, 2011
Creator:
Duckwitz, Noel
System:
The UNT Digital Library
10 CFR 830 Major Modification Determination for Replacement of ATR Primary Coolant Pumps and Motors
The continued safe and reliable operation of the ATR is critical to the Department of Energy (DOE) Office of Nuclear Energy (NE) mission. While ATR is safely fulfilling current mission requirements, a variety of aging and obsolescence issues challenge ATR engineering and maintenance personnel’s capability to sustain ATR over the long term. First documented in a series of independent assessments, beginning with an OA Environmental Safety and Health Assessment conducted in 2003, the issues were validated in a detailed Material Condition Assessment (MCA) conducted as a part of the ATR Life Extension Program in 2007.Accordingly, near term replacement of aging and obsolescent original ATR equipment has become important to ensure ATR capability in support of NE’s long term national missions. To that end, a mission needs statement has been prepared for a non-major system acquisition which is comprised of three interdependent subprojects. The first project will replace the existent diesel-electrical bus (E-3), switchgear, and the 50-year-old obsolescent marine diesels with commercial power that is backed with safety related emergency diesel generators, switchgear, and uninterruptible power supply (UPS). The second project, the subject of this major modification determination, will replace the four, obsolete, original primary coolant pumps (PCPs) and motors. Completion …
Date:
May 1, 2011
Creator:
Duckwitz, Noel
System:
The UNT Digital Library
10 CFR 830 Major Modification Determination for the ATR Diesel Bus (E-3) and Switchgear Replacement
Near term replacement of aging and obsolescent original ATR equipment has become important to ensure ATR capability in support of NE’s long term national missions. To that end, a mission needs statement has been prepared for a non-major system acquisition which is comprised of three interdependent subprojects. The first project, subject of this determination, will replace the existent diesel-electrical bus (E-3) and associated switchgear. More specifically, INL proposes transitioning ATR to 100% commercial power with appropriate emergency backup to include: • Provide commercial power as the normal source of power to the ATR loads currently supplied by diesel-electric power. • Provide backup power to the critical ATR loads in the event of a loss of commercial power. • Replace obsolescent critical ATR power distribution equipment, e.g., switchgear, transformers, motor control centers, distribution panels. Completion of this and two other age-related projects (primary coolant pump and motor replacement and emergency firewater injection system replacement) will resolve major age related operational issues plus make a significant contribution in sustaining the ATR safety and reliability profile. The major modification criteria evaluation of the project pre-conceptual design identified several issues make the project a major modification: 1. Evaluation Criteria #2 (Footprint change). The addition …
Date:
May 1, 2011
Creator:
Duckwtiz, Noel
System:
The UNT Digital Library
100-BC-5 Operable Unit, Batch Leach Analyses and Report for Sediments at RI/FS Wells C7508, C7783, C7784, C7785, and C7787
This is an analytical data report for sediment samples from the 100 BC Operable unit. This report contains the updated dates for samples associated with Hexavalent Chromium/Soil analysis. Between August 24, 2010 and March 3, 2011 sediment samples were received from 100-BC Decision Unit Soil for geochemical studies. The analyses for this project were performed at the 331 building located in the 300 Area of the Hanford Site. The analyses were performed according to Pacific Northwest National Laboratory (PNNL) approved procedures and/or nationally recognized test procedures. The data sets include the sample identification numbers, analytical results, estimated quantification limits (EQL), and quality control data. The preparatory and analytical quality control requirements, calibration requirements, acceptance criteria, and failure actions are defined in the on-line QA plan 'Conducting Analytical Work in Support of Regulatory Programs' (CAW). This QA plan implements the Hanford Analytical Services Quality Assurance Requirements Documents (HASQARD) for PNNL.
Date:
April 2011
Creator:
Lindberg, Michael J.
System:
The UNT Digital Library
100% DD Energy Model Update
The Miami Science Museum energy model has been used during DD to test the buildingâs potential for energy savings as measured by ASHRAE 90.1-2007 Appendix G. This standard compares the designed buildingâs yearly energy cost with that of a code-compliant building. The building is currently on track show 20% or better improvement over the ASHRAE 90.1-2007 Appendix G baseline; this performance would ensure minimum compliance with both LEED 2.2 and current Florida Energy Code, which both reference a less strict version of ASHRAE 90.1. In addition to being an exercise in energy code compliance, the energy model has been used as a design tool to show the relative performance benefit of individual energy conservation measures (ECMs). These ECMs are areas where the design team has improved upon code-minimum design paths to improve the energy performance of the building. By adding ECMs one a time to a code-compliant baseline building, the current analysis identifies which ECMs are most effective in helping the building meet its energy performance goals.
Date:
June 30, 2011
Creator:
unknown
System:
The UNT Digital Library
100-NR-2 Apatite Treatability Test: An update on Barrier Performance
This report updates a previous report covering the performance of a permeable reactive barrier installed at 100N. In this report we re-evaluate the results after having an additional year of performance monitoring data to incorporate.
Date:
May 1, 2011
Creator:
Fritz, Brad G.; Vermeul, Vincent R.; Fruchter, Jonathan S.; Szecsody, James E. & Williams, Mark D.
System:
The UNT Digital Library
100-NR-2 Apatite Treatability Test: Fall 2010 Tracer Infiltration Test (White Paper)
The primary objectives of the tracer infiltration test were to 1) determine whether field-scale hydraulic properties for the compacted roadbed materials and underlying Hanford fm. sediments comprising the zone of water table fluctuation beneath the site are consistent with estimates based laboratory-scale measurements on core samples and 2) characterize wetting front advancement and distribution of soil moisture achieved for the selected application rate. These primary objectives were met. The test successfully demonstrated that 1) the remaining 2 to 3 ft of compacted roadbed material below the infiltration gallery does not limit infiltration rates to levels that would be expected to eliminate near surface application as a viable amendment delivery approach and 2) the combined aqueous and geophysical monitoring approaches employed at this site, with some operational adjustments based on lessons learned, provides an effective means of assessing wetting front advancement and the distribution of soil moisture achieved for a given solution application. Reasonably good agreement between predicted and observed tracer and moisture front advancement rates was observed. During the first tracer infiltration test, which used a solution application rate of 0.7 cm/hr, tracer arrivals were observed at the water table (10 to 12 ft below the bottom of the infiltration …
Date:
April 14, 2011
Creator:
Vermeul, Vincent R.; Fritz, Brad G.; Fruchter, Jonathan S.; Greenwood, William J.; Johnson, Timothy C.; Horner, Jacob A. et al.
System:
The UNT Digital Library
200-BP-1 Prototype Hanford Barrier -- 15 Years of Performance Monitoring
Monitoring is an essential component of engineered barrier system design and operation. A composite capacitive cover, including a capillary break and an evapotranspiration (ET) barrier at the Hanford Site, is generating data that can be used to help resolve these issues. The prototype Hanford barrier was constructed over the 216-B-57 Crib in 1994 to evaluate surface-barrier constructability, construction costs, and physical and hydrologic performance at the field scale. The barrier has been routinely monitored between November 1994 and September 1998 as part of a Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) treatability test of barrier performance for the 200 BP 1 Operable Unit. Since FY 1998, monitoring has focused on a more limited set of key water balance, stability, and biotic parameters. In FY 2009, data collection was focused on: (1) water-balance monitoring, consisting of precipitation, runoff, soil moisture storage, and drainage measurements with evapotranspiration calculated by difference; (2) stability monitoring, consisting of asphalt-layer-settlement, basalt-side-slope-stability, and surface-elevation measurements; (3) vegetation dynamics; and (4) animal use. September 2009 marked 15 years since the start of monitoring and the collection of performance data. This report describes the results of monitoring activities during the period October 1, 2008, through September …
Date:
September 30, 2011
Creator:
Ward, Anderson L.; Draper, Kathryn E.; Link, Steven O. & Clayton, Ray E.
System:
The UNT Digital Library
200-DV-1OU Sediment and Pore Water Analysis and Report for Samples at Borehole C8096
This is an analytical data report for sediment samples received at 200-DV-1 OU. On August 30, 2011 sediment samples were received from 200-DV-1 OU Borehole C8096 for geochemical studies. The analyses for this project were performed at the 331 building located in the 300 Area of the Hanford Site. The analyses were performed according to Pacific Northwest National Laboratory (PNNL) approved procedures and/or nationally recognized test procedures. The data sets include the sample identification numbers, analytical results, estimated quantification limits (EQL), and quality control data. The preparatory and analytical quality control requirements, calibration requirements, acceptance criteria, and failure actions are defined in the on-line QA plan 'Conducting Analytical Work in Support of Regulatory Programs' (CAW). This QA plan implements the Hanford Analytical Services Quality Assurance Requirements Documents (HASQARD) for PNNL.
Date:
October 1, 2011
Creator:
Lindberg, Michael J.
System:
The UNT Digital Library
200% Efficient Singlet Fission Observed (Fact Sheet)
NREL scientists confirm the first molecular compound designed specifically to exhibit exciton multiplication.
Date:
June 1, 2011
Creator:
unknown
System:
The UNT Digital Library
A 200 MHz 35 MW Multiple Beam Klystron for Accelerator Applications Final Report
Calabazas Creek Research, Inc. (CCR) performed initial development of a compact and reliable 35 MW, multiple beam klystron (MBK) at 200 MHz with a pulse length of 0.125 ms and a 30 Hz repetition rate. The device was targeted for acceleration and ionization cooling of a muon collider, but there are several other potential applications in this frequency range. The klystron uses multiple beams propagating in individual beam tunnels to reduce space charge and allow reduction in the accelerating voltage. This allows a significant reduction in length over a single beam source. More importantly this allows more efficient and less expensive power supplies. At 200 MHz, the interaction circuit for a single beam klystron would be more than six meters long to obtain 50% efficiency and 50 dB gain. This would require a beam voltage of approximately 400 kV and current of 251 A for a microperveance of 1.0. For an eight beam MBK with the same beam perveance, a three meter long interaction circuit achieves the same power and gain. Each beam operates at 142 kV and 70A. The Phase I demonstrated that this device could be fabricated with funding available in a Phase II program and could achieve …
Date:
November 28, 2011
Creator:
Ives, R. Lawrence; Read, Michael; Ferguson, Patrick & Marsden, David
System:
The UNT Digital Library
300 Area D4 Project Fiscal Year 2010 Building Completion Report
This report summarizes the deactiviation, decontamination, decommissioning, and demolition activities of facilities in the 300 Area of the Hanford Site in fiscal year 2010.
Date:
January 27, 2011
Creator:
Skwarek, B. J.
System:
The UNT Digital Library
401(k) Plans and Retirement Savings: Issues for Congress
From Summary: "This report describes seven major policy issues with respect to defined contribution plans include: 1. access to employer-sponsored retirement plans; 2. participation in employer-sponsored plans; 3. contribution rates; 4. investment choices; 5. fee disclosure; 6. leakage from retirement savings; converting retirement savings into income."
Date:
January 7, 2011
Creator:
Topoleski, John J.
System:
The UNT Digital Library
401(K) Plans: Certain Investment Options and Practices That May Restrict Withdrawals Not Widely Understood
A letter report issued by the Government Accountability Office with an abstract that begins "401(k) plan sponsors are responsible for offering an array of appropriate investment options, and participants are responsible for directing their investments among those options. While participants expect to be able to switch investment options or withdraw money from their accounts, during the recent economic downturn, some 401(k) plan sponsors and participants found that they were restricted from doing so. GAO was asked to (1) identify some of the specific investments and practices that prevented plan sponsors and participants from accessing their 401(k) plan assets and (2) determine any changes the Department of Labor (Labor) could make to assist sponsors in understanding the challenges posed by the investments and practices that restricted withdrawals. To do this, GAO reviewed relevant federal laws and regulations and consulted with experts, federal officials, service providers, and plan sponsors."
Date:
March 10, 2011
Creator:
United States. Government Accountability Office.
System:
The UNT Digital Library
401(K) Plans: Improved Regulation Could Better Protect Participants from Conflicts of Interest
A letter report issued by the Government Accountability Office with an abstract that begins "Recent volatility in financial markets highlights the need for prudent investment decisions if 401(k) plans are to provide an adequate source of retirement income. While plan sponsors and participants may receive help in assessing their investment choices, concerns have been raised about the impartiality of the advice provided. GAO was asked to describe circumstances where service providers may have conflicts of interest in providing assistance related to the selection of investment options for (1) plan sponsors and (2) plan participants, and (3) steps the Department of Labor (Labor) has taken to address conflicts of interest related to the selection of investment options."
Date:
January 28, 2011
Creator:
United States. Government Accountability Office.
System:
The UNT Digital Library
T-1018 UCLA Spacordion Tungsten Powder Calorimeter
The present experiments at the BNL-RHIC facility are evolving towards physics goals which require the detection of medium energy electromagnetic particles (photons, electrons, neutral pions, eta mesons, etc.), especially at forward angles. New detectors will place increasing demands on energy resolution, hadron rejection and two-photon resolution and will require large area, high performance electromagnetic calorimeters in a variety of geometries. In the immediate future, either RHIC or JLAB will propose a facility upgrade (Electron-Ion Collider, or EIC) with physics goals such as electron-heavy ion collisions (or p-A collisions) with a wide range of calorimeter requirements. An R and D program based at Brookhaven National Laboratory has awarded the group funding of approximately $110,000 to develop new types of calorimeters for EIC experiments. The UCLA group is developing a method to manufacture very flexible and cost-effective, yet high quality calorimeters based on scintillating fibers and tungsten powder. The design and features of the calorimeter can be briefly stated as follows: an arbitrarily large number of small diameter fibers (< 0.5 mm) are assembled as a matrix and held rigidly in place by a set of precision screens inside an empty container. The container is then back-filled with tungsten powder, compacted on …
Date:
November 16, 2011
Creator:
Trentalange, Stephen; Tsai, Oleg; Igo, George; Huang, Huan; Pan, Yu Xi; Dunkelberger, Jay et al.
System:
The UNT Digital Library
T-1020 NaI crystal test for DM-Ice
This is a memorandum of understanding between the Fermi National Accelerator Laboratory (Fermilab) and the experiments of the NaI Crystal Test for DM-Ice from the University of Wisconsin who have committed to participate in detector tests to be carried out during the 2011-2012 Fermilab Neutrino program. The memorandum is intended primarily for the purpose of recording expectations for budget estimates and work allocations for Fermilab, the funding agencies and the participating institutions. It reflects an arrangement that currently is satisfactory to the parties; however, it is recognized and anticipated that changing circumstances of the evolving research program will necessitate revisions. The parties agree to modify this memorandum to reflect such required adjustments. Actual contractual obligations will be set forth in separate documents. The DM-Ice collaboration is designing a sodium-iodide (NaI) based detector for a direct dark matter search. The detectors should have low readout noise and background levels to carry out a sensitive search. A 17-kg version of the experiment is running at the South Pole, 2500 m deep in the Antarctic ice, and a large scale experiment is currently being designed. One of the keys to the success of the experiment is to have a good understanding of the …
Date:
November 3, 2011
Creator:
Maruyama, Reina; Heeger, Karsten; Pierpoint, Zachary; Pettus, Walter; Broerman, Benjamin; Hilgenberg, Chris et al.
System:
The UNT Digital Library
1099 Information Reporting Requirements and Penalties as Modified by the Patient Protection and Affordable Care Act and the Small Business Jobs Act of 2010
This report discuses the 2010 expansion of reporting requirements listed in IRC (Internal Revenue Code) 6041. The controversy in these expansions lies in the burden the expansion imposes on small businesses. The report also describes the pieces of legislation that have amended IRC 6041, and the implications of that legislation along with the consequences of IRC 6041.
Date:
February 25, 2011
Creator:
Pettit, Carol A. & Liu, Edward C.
System:
The UNT Digital Library
1099 Information Reporting Requirements and Penalties as Modified by the Patient Protection and Affordable Care Act and the Small Business Jobs Act of 2010
This report discuses the 2010 expansion of reporting requirements listed in IRC (Internal Revenue Code) 6041. The controversy in these expansions lies in the burden the expansion imposes on small businesses. The report also describes the pieces of legislation that have amended IRC 6041, and the implications of that legislation along with the consequences of IRC 6041.
Date:
March 4, 2011
Creator:
Pettit, Carol A. & Liu, Edward C.
System:
The UNT Digital Library
10MW Class Direct Drive HTS Wind Turbine: Cooperative Research and Development Final Report, CRADA Number CRD-08-00312
This paper summarizes the work completed under the CRADA between NREL and American Superconductor (AMSC). The CRADA combined NREL and AMSC resources to benchmark high temperature superconducting direct drive (HTSDD) generator technology by integrating the technologies into a conceptual wind turbine design, and comparing the design to geared drive and permanent magnet direct drive (PMDD) wind turbine configurations. Analysis was accomplished by upgrading the NREL Wind Turbine Design Cost and Scaling Model to represent geared and PMDD turbines at machine ratings up to 10 MW and then comparing cost and mass figures of AMSC's HTSDD wind turbine designs to theoretical geared and PMDD turbine designs at 3.1, 6, and 10 MW sizes.
Date:
May 1, 2011
Creator:
Musial, W.
System:
The UNT Digital Library
1994 SSRL Activity Report
SSRL, a division of the Stanford Linear Accelerator Center, is a national user facility which provides synchrotron radiation, a name given to x-rays or light produced by electrons circulating in a storage ring at nearly the speed of light. The synchrotron radiation is produced by the 3.3 GeV storage ring, SPEAR. SPEAR is a fully dedicated synchrotron radiation facility which has been operating for user experiments 6 to 7 months per year. 1994, the third year of operation of SSRL as a fully dedicated, low-emittance, independent user facility was superb. The facility ran extremely well, delivering 89% of the scheduled user beam to 25 experimental stations during 6.5 months of user running. Over 600 users came from 167 institutions to participate in 343 experiments. Users from private industry were involved in 31% of these experiments. The SPEAR accelerator ran very well with no major component failures and an unscheduled down time of only 2.9%. In addition to this increased reliability, there was a significant improvement in the stability of the beam. The enhancements to the SPEAR orbit as part of a concerted three-year program were particularly noticeable to users. the standard deviation of beam movement (both planes) in the last …
Date:
November 18, 2011
Creator:
unknown
System:
The UNT Digital Library
1st Advanced Marine Renewable Energy Instrumentation Experts Workshop: April 5-7, 2011
The U.S. marine energy industry is actively pursuing development of offshore wind and marine hydrokinetic (MHK) energy systems. Experience in the wind energy sector demonstrates that new technology development requires thorough measurement and characterization of the environmental conditions prevalent at installation sites and of technology operating in the field. Presently, there are no turn-key instrumentation system solutions that meet the measurement needs of the marine energy industry. The 1st Advanced Marine Renewable Energy Instrumentation Experts Workshop brought together technical experts from government laboratories, academia, and industry representatives from marine energy, wind, offshore oil and gas, and instrumentation developers to present and discuss the instrumentation needs of the marine energy industry. The goals of the meeting were to: (1) Share the latest relevant knowledge among technical experts; (2) Review relevant state-of-the-art field measurement technologies and methods; (3) Review lessons learned from recent field deployments; (4) Identify synergies across different industries; (5) Identify gaps between existing and needed instrumentation capabilities; (6) Understand who are the leading experts; (7) Provide a forum where stakeholders from the marine energy industry could provide substantive input in the development of new marine energy field deployable instrumentation packages.
Date:
October 1, 2011
Creator:
unknown
System:
The UNT Digital Library
2007 Estimated International Energy Flows
An energy flow chart or 'atlas' for 136 countries has been constructed from data maintained by the International Energy Agency (IEA) and estimates of energy use patterns for the year 2007. Approximately 490 exajoules (460 quadrillion BTU) of primary energy are used in aggregate by these countries each year. While the basic structure of the energy system is consistent from country to country, patterns of resource use and consumption vary. Energy can be visualized as it flows from resources (i.e. coal, petroleum, natural gas) through transformations such as electricity generation to end uses (i.e. residential, commercial, industrial, transportation). These flow patterns are visualized in this atlas of 136 country-level energy flow charts.
Date:
March 10, 2011
Creator:
Smith, C. A.; Belles, R. D. & Simon, A. J.
System:
The UNT Digital Library