Access
Partner
UNT Libraries Government Documents Department
827
UNT Libraries
106
Oklahoma Historical Society
101
National Museum of the Pacific War/Admiral Nimitz Foundation
68
UNT Libraries Special Collections
57
Sweetwater/Nolan County City-County Library
25
San Antonio Public Library
24
Sterling Municipal Library
22
Burleson Public Library
15
UNT College of Arts and Sciences
13
39 More
Collection
Office of Scientific & Technical Information Technical Reports
425
Texas Digital Newspaper Program
278
Congressional Research Service Reports
147
Oklahoma Digital Newspaper Program
109
Texas State Publications
106
Government Accountability Office Reports
99
Tocker Foundation Grant
78
The Greensheet
77
National Museum of the Pacific War Oral History Collection
68
National Museum of the Pacific War Digital Archive
68
80 More
Degree Department
Degree Discipline
Degree Level
Country
States
Year
Month
1,398 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
1,398
next
Accelerated Testing Validation
The DOE Fuel Cell technical team recommended ASTs were performed on 2 different MEAs (designated P5 and HD6) from Ballard Power Systems. These MEAs were also incorporated into stacks and operated in fuel cell bus modules that were either operated in the field (three P5 buses) in Hamburg, or on an Orange county transit authority drive cycle in the laboratory (HD6 bus module). Qualitative agreement was found in the degradation mechanisms and rates observed in the AST and in the field. The HD6 based MEAs exhibited lower voltage degradation rates (due to catalyst corrosion) and slower membrane degradation rates in the field as reflected by their superior performance in the high potential hold and open-circuit potential AST tests. The quantitative correlation of the degradation rates will have to take into account the various stressors in the field including temperature, relative humidity, start/stops and voltage cycles.
Date:
July 1, 2011
Creator:
Mukundan, Rangachary; James, Greg; Davey, John; Langlois, David; Torraco, Dennis; Yoon, Wonseok et al.
Object Type:
Article
System:
The UNT Digital Library
Advancing Reactive Tracer Methods for Measurement of Thermal Evolution in Geothermal Reservoirs: Final Report
The injection of cold fluids into engineered geothermal system (EGS) and conventional geothermal reservoirs may be done to help extract heat from the subsurface or to maintain pressures within the reservoir (e.g., Rose et al., 2001). As these injected fluids move along fractures, they acquire heat from the rock matrix and remove it from the reservoir as they are extracted to the surface. A consequence of such injection is the migration of a cold-fluid front through the reservoir (Figure 1) that could eventually reach the production well and result in the lowering of the temperature of the produced fluids (thermal breakthrough). Efficient operation of an EGS as well as conventional geothermal systems involving cold-fluid injection requires accurate and timely information about thermal depletion of the reservoir in response to operation. In particular, accurate predictions of the time to thermal breakthrough and subsequent rate of thermal drawdown are necessary for reservoir management, design of fracture stimulation and well drilling programs, and forecasting of economic return. A potential method for estimating migration of a cold front between an injection well and a production well is through application of reactive tracer tests, using chemical whose rate of degradation is dependent on the reservoir …
Date:
July 1, 2011
Creator:
Plummer, Mitchell A.; Palmer, Carl D.; Mattson, Earl D.; Hull, Laurence C. & Redden, George D.
Object Type:
Report
System:
The UNT Digital Library
The Advocate, Volume 16, Issue 3, July-September 2011
Quarterly update providing information on environmental regulations for small businesses and local governments in Texas.
Date:
July 2011
Creator:
Texas Commission on Environmental Quality
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
AIR QUALITY IMPACTS OF LIQUEFIED NATURAL GAS IN THE SOUTH COAST AIR BASIN OF CALIFORNIA
The effects of liquefied natural gas (LNG) on pollutant emission inventories and air quality in the South Coast Air Basin of California were evaluated using recent LNG emission measurements by Lawrence Berkeley National Laboratory and the Southern California Gas Company (SoCalGas), and with a state-of-the-art air quality model. Pollutant emissions can be affected by LNG owing to differences in composition and physical properties, including the Wobbe index, a measure of energy delivery rate. This analysis uses LNG distribution scenarios developed by modeling Southern California gas flows, including supplies from the LNG receiving terminal in Baja California, Mexico. Based on these scenarios, the projected penetratino of LNG in the South Coast Air Basin is expected to be limited. In addition, the increased Wobbe index of delivered gas (resulting from mixtures of LNG and conventional gas supplies) is expected to cause increases smaller than 0.05 percent in overall (area-wide) emissions of nitrogen oxides (NOx). BAsed on the photochemical state of the South Coast Air Basin, any increase in NOx is expected to cause an increase in the highest local ozone concentrations, and this is reflected in model results. However, the magnitude of the increase is well below the generally accepted accuracy of …
Date:
July 1, 2011
Creator:
Carerras-Sospedra, Marc; Brouwer, Jack; Dabdub, Donald; Lunden, Melissa & Singer, Brett
Object Type:
Report
System:
The UNT Digital Library
Allocating Reserve Requirements
This presentation provides an overview of present and possible future ways to allocate and assign benefits for reserve requirements.
Date:
July 1, 2011
Creator:
Milligan, M.; Kirby, B. & King, J.
Object Type:
Presentation
System:
The UNT Digital Library
The Altus Times (Altus, Okla.), Vol. 112, No. 59, Ed. 1 Friday, July 1, 2011
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 1, 2011
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Amorphous Indium-Zinc-Oxide Transparent Conductors for Thin Film PV: Preprint
Amorphous InZnO's (a-IZO) basic PV applicability has now been demonstrated in prototype CIGS, Si Heterojunction (SiHJ) and organic photovoltaics (OPV). However, to move beyond initial demonstration devices, improved TCO properties and processibility of the a-IZO films are needed. Here, RF-superimposed DC sputtering was used to improve the reliable deposition of a-IZO with conductivity > 3000 S/cm.
Date:
July 1, 2011
Creator:
Perkins, J.; Gennett, T.; Galante, M.; Gillaspie, D. & Ginley, D.
Object Type:
Article
System:
The UNT Digital Library
Analysis of HOM Properties of Superconducting Parallel-Bar Deflecting/Crabbing Cavities
The superconducting parallel-bar cavity is currently being considered for a number of deflecting and crabbing applications due to improved properties and compact design geometries. The 499 MHz deflecting cavity proposed for the Jefferson Lab 12 GeV upgrade and the 400 MHz crab cavity for the proposed LHC luminosity upgrade are two of the major applications. For high current applications the higher order modes must be damped to acceptable levels to eliminate any beam instabilities. The frequencies and R/Q of the HOMs and mode separation are evaluated and compared for different parallel-bar cavity designs.
Date:
July 1, 2011
Creator:
S.U. De Silva, J.R. Delayen
Object Type:
Article
System:
The UNT Digital Library
"And Justice For All"
Poster reading "And Justice for All" in large print above an image of the Statue of Liberty on a background of a crowd. There is text in English and Spanish at the bottom of the poster, stating that the United States Department of Agriculture is prohibited from discriminating on the basis of race, gender, color, national origin, age, or disability.
Date:
July 2011
Creator:
Texas. Department of State Health Services.
Object Type:
Poster
System:
The Portal to Texas History
[Animal crossing sign]
Photograph of an animals crossing sign in Ben Wheeler, Texas. The small town was named after the first man to carry mail into the county and thrived during the late 1800s when families would arrive with horse-drawn wagons to sell or trade goods.
Date:
2011-07~
Creator:
Mallory, Randy
Object Type:
Photograph
System:
The UNT Digital Library
Another look at the question of density and rail transit
"This research compares density in a few select cities with the accepted transit efficiency performance measure of operating cost per passenger mile to determine whether this statistic is better in more dense cities."
Date:
July 2011
Creator:
Hall, Kadijah & Lewis, Carol Abel
Object Type:
Report
System:
The Portal to Texas History
Aquifers of Texas
"This report is an update to the Texas Water Development Board (TWDB) Report 345, Major and Minor Aquifers of Texas, published in 1995 and coauthored by John B. Ashworth and Janie Hopkins."
Date:
July 2011
Creator:
Mace, Robert E.; Petrossian, Rima & George, Peter G.
Object Type:
Report
System:
The Portal to Texas History
Ashcroft v. al-Kidd: Official Immunity and Material Witnesses Before the Supreme Court
This report discusses about Ashcroft v. al-Kidd: Official Immunity and Material Witnesses Before the Supreme Court.
Date:
July 1, 2011
Creator:
Doyle, Charles
Object Type:
Report
System:
The UNT Digital Library
Assessment of Indoor Air Quality Benefits and Energy Costs of Mechanical Ventilation
Intake of chemical air pollutants in residences represents an important and substantial health hazard. Sealing homes to reduce air infiltration can save space conditioning energy, but can also increase indoor pollutant concentrations. Mechanical ventilation ensures a minimum amount of outdoor airflow that helps reduce concentrations of indoor emitted pollutants while requiring some energy for fan(s) and thermal conditioning of the added airflow. This work demonstrates a physics based, data driven modeling framework for comparing the costs and benefits of whole-house mechanical ventilation and applied the framework to new California homes. The results indicate that, on a population basis, the health benefits from reduced exposure to indoor pollutants in New California homes are worth the energy costs of adding mechanical ventilation as specified by ASHRAE Standard 62.2.This study determines the health burden for a subset of pollutants in indoor air and the costs and benefits of ASHRAE's mechanical ventilation standard (62.2) for new California homes. Results indicate that, on a population basis, the health benefits of new home mechanical ventilation justify the energy costs.
Date:
July 1, 2011
Creator:
Logue, J. M.; Price, P. N.; Sherman, M. H. & Singer, B. C.
Object Type:
Article
System:
The UNT Digital Library
Asymmetry and Risk
None
Date:
July 1, 2011
Creator:
Goodwin, B T
Object Type:
Article
System:
The UNT Digital Library
[Audience dancing to band's performance]
Photograph of a band performing on a red stage in Ben Wheeler, Texas. Audience members are seen dancing in the foreground. The small town was named after the first man to carry mail into the county and thrived during the late 1800s when families would arrive with horse-drawn wagons to sell or trade goods.
Date:
2011-07~
Creator:
Mallory, Randy
Object Type:
Photograph
System:
The UNT Digital Library
An Audit Report on Data Security Related to the Disposal of Surplus and Salvage State Data Processing Equipment at the Texas Department of Criminal Justice and Selected State Agencies
Report of the Texas State Auditor's Office related to determining whether the Texas Department of Criminal Justice's (TDCJ) Computer Recovery Program (Program) and selected state entities remove or destroy data from electronic storage devices prior to the devices' sale, transfer, or destruction in accordance with state law, administrative rules, and state entity policies and procedures.
Date:
July 2011
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History
An Audit Report on Performance Measures at the Board of Veterinary Medical Examiners
Report of the Texas State Auditor's Office related to determining whether the Board of Veterinary Medical Examiners accurately reports selected key performance measures to the Automated Budget and Evaluation System of Texas (ABEST), and has adequate control systems in place over the collecting, calculating, and reporting of selected key performance measures.
Date:
July 2011
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History
An Audit Report on Performance Measures at the Department of Licensing and Regulation
Report of the Texas State Auditor's Office related to determining whether the Department of Licensing and Regulation is accurately reporting its performance measures to ABEST and has adequate controls in place over the collection, calculation, and reporting of its performance measures.
Date:
July 2011
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History
An Audit Report on Performance Measures at the Teacher Retirement System
Report of the Texas State Auditor's Office related to determining whether the Teacher Retirement System is accurately reporting its performance measures to the Automated Budget and Evaluation System of Texas (ABEST) and has adequate controls in place over the collection, calculation, and reporting of its performance measures.
Date:
July 2011
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History
An Audit Report on Selected Information Technology Controls at the Winters Data Centers
Report of the Texas State Auditor's Office related to weaknesses in the Health and Human Services Commission's (Commission) logical and physical access controls over information technology at the Winters Data Centers, which could result in damage to equipment or unauthorized access to and the loss of confidential data and systems.
Date:
July 2011
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History
An Audit Report on the Department of State Health Services' Human Resources Management at State Mental Health Hospitals
Report of the Texas State Auditor's Office related to determining whether the Department of State Health Services' human resources practices at state hospitals regarding criminal history background checks and allegations of abuse and neglect comply with applicable laws, policies, and procedures; and whether the Department trains state hospital staff and managers in accordance with applicable laws, policies, and procedures.
Date:
July 2011
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History
An Audit Report on the Development of the Texas Child Support Enforcement System 2.0 at the Office of the Attorney General
Report of the Texas State Auditor's Office related to determining whether the Office of the Attorney General's development of the Texas Child Support Enforcement System 2.0 (TXCSES 2.0) initiative adheres to Department of Information Resources' guidelines, the State of Texas Contract Management Guide, and other laws and best practices to help ensure that the project will be delivered on schedule, on budget, with an appropriate level of security, and with the agreed-upon level of user functionality.
Date:
July 2011
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History
An Audit Report on the System Benefit Fund and the Low-Income Electric Discount Program at the Public Utility Commission
Report of the Texas State Auditor's Office related to determining whether the Public Utility Commission (Commission) makes expenditures from the System Benefit Fund (SBF) for the Low-Income Electric Discount Program (discount program) in accordance with applicable laws, regulations, and policies and procedures; and to verifying the accuracy of the cash balance in General Revenue Dedicated Account - System Benefit Fund 5100 at the end of fiscal years 2009 and 2010.
Date:
July 2011
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History