Partner
UNT Libraries Special Collections
320
UNT Libraries Government Documents Department
14
UNT Libraries
6
Oklahoma Historical Society
3
UNT Music Library
2
Abilene Christian University Library
1
Brownwood Public Library
1
Carl Albert Congressional Research and Studies Center
1
Ennis Public Library
1
Grandview Public Library
1
3 More
Collection
The Black Academy of Arts and Letters Records
309
Texas Digital Newspaper Program
15
Ken Chaney Digital Photography Collection
9
Congressional Research Service Reports
6
Office of Scientific & Technical Information Technical Reports
6
The Greensheet
5
Oklahoma Digital Newspaper Program
4
Tocker Foundation Grant
3
College of Music Recordings
2
Abilene Library Consortium
1
20 More
Degree Department
Degree Discipline
Degree Level
Country
States
Language
Results:
1 - 24 of
353
next
U.S. Solar Photovoltaic Manufacturing: Industry Trends, Global Competition, Federal Support
The most widely used solar technology involves photovoltaic (PV) solar modules, which draw on semiconducting materials to convert sunlight into electricity. By year-end 2011, the total number of grid-connected PV systems nationwide reached almost 215,000. Domestic demand is met both by imports and by about 100 U.S. manufacturing facilities. The competitiveness of solar PV as a source of electric generation in the United States will likely be adversely affected both by the expiration of tax provisions and by the rapid development of shale gas, which has the potential to lower the cost of gas-fired power generation and reduce the cost-competitiveness of solar power, particularly as an energy source for utilities. In light of these developments, the ability to build a significant U.S. production base for PV equipment is in question.
Date:
April 27, 2012
Creator:
Platzer, Michaela D.
Object Type:
Report
System:
The UNT Digital Library
The U.S.-Colombia Free Trade Agreement: Background and Issues
The U.S.-Colombia Free Trade Agreement, or U.S. Colombia Trade Promotion Agreement, is a comprehensive free trade agreement (FTA) between the United States and Colombia, which will eventually eliminate tariffs and other barriers in bilateral trade in goods and services. The agreement will enter into force on May 15, 2012. The United States is Colombia's leading trade partner. Colombia accounts for a very small percentage of U.S. trade (1.0% in 2011), ranking 22nd among U.S. export markets and 23rd as a supplier of U.S. imports. Economic studies on the impact of a U.S.-Colombia FTA have found that, upon full implementation of an agreement, the impact on the United States would be positive but very small due to the small size of the Colombian economy when compared to that of the United States (about 2.2%). This report also discusses concerns that Congress has with Colombian human rights violations.
Date:
April 27, 2012
Creator:
Villarreal, M. Angeles
Object Type:
Report
System:
The UNT Digital Library
Turkey: Background and U.S. Relations
Congress has an active role to play in shaping and overseeing U.S. relations with Turkey, and several Turkish domestic and foreign policy issues have significant relevance for U.S. interests. This report provides background information on Turkey and discusses possible policy options for Members of Congress and the Obama Administration. U.S. relations with Turkey-a longtime North Atlantic Treaty Organization (NATO) ally-have evolved over time as global challenges to U.S. interests have changed.
Date:
April 27, 2012
Creator:
Zanotti, Jim
Object Type:
Report
System:
The UNT Digital Library
Issues and Challenges for Federal Geospatial Information
The report discusses issues that may be of interest to Congress-managing, sharing, and coordinating geospatial information-and includes examples of legislation. The report also summarizes a diverse set of recommendations and proposals from different non-governmental organizations for how to improve the coordination and management of geospatial information at the federal and state levels.
Date:
April 27, 2012
Creator:
Folger, Peter
Object Type:
Report
System:
The UNT Digital Library
Budget "Sequestration" and Selected Program Exemptions and Special Rules
"Sequestration" is a process of automatic, largely across-the-board spending reductions under which budgetary resources are permanently canceled to enforce certain budget policy goals. This report looks at the history and current status of sequestration at it relates to Congress. This includes how it is enacted and special rules that can apply.
Date:
April 27, 2012
Creator:
Spar, Karen
Object Type:
Report
System:
The UNT Digital Library
Sweetwater Reporter (Sweetwater, Tex.), Vol. 114, No. 087, Ed. 1 Friday, April 27, 2012
Daily newspaper from Sweetwater, Texas that includes local, state, and national news along with advertising.
Date:
April 27, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Texas Register, Volume 37, Number 17, Pages 2909-3246, April 27, 2012
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
April 27, 2012
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
North Texas Daily (Denton, Tex.), Vol. 99, No. 56, Ed. 1 Friday, April 27, 2012
Daily student newspaper from the University of North Texas in Denton, Texas that includes local, state, and campus news along with advertising.
Date:
April 27, 2012
Creator:
Gorman, Sean
Object Type:
Newspaper
System:
The Portal to Texas History
Dallas Voice (Dallas, Tex.), Vol. 28, No. 50, Ed. 1 Friday, April 27, 2012
Weekly newspaper from Dallas, Texas that includes local, state, and national news and advertising of interest to the Lesbian, Gay, Bisexual, and Transgender (LGBT) community.
Date:
April 27, 2012
Creator:
Wright, John
Object Type:
Newspaper
System:
The Portal to Texas History
Doctoral Recital: 2012-04-27 - Heather Suchodolski, horn
Recital presented at the UNT College of Music Voertman Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
April 27, 2012
Creator:
Suchodolski, Heather
Object Type:
Sound
System:
The UNT Digital Library
Doctoral Recital: 2012-04-27 - Tzu-Yi Liu, piano
Recital presented at the UNT College of Music Voertman Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
April 27, 2012
Creator:
Liu, Tzu-Yi
Object Type:
Sound
System:
The UNT Digital Library
The Greensheet (Houston, Tex.), Vol. 43, No. 155, Ed. 1 Friday, April 27, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
April 27, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Checked Baggage Screening: TSA Has Deployed Optimal Systems at the Majority of TSA-Regulated Airports, but Could Strengthen Cost Estimates
A letter report issued by the Government Accountability Office with an abstract that begins "The Transportation Security Administrations (TSA) Electronic Baggage Screening Program (EBSP) reports that 76 percent of the airports (337 of 446) the agency regulates for security have a mix of in-line and stand-alone baggage screening configurations that best meet airport needs (i.e., optimal systems). However, only 36 percent (10 of 28) of the nations larger airportsbased on factors such as the total number of takeoffs and landings annuallyhave complete optimal systems. This is because the larger airports generally need more complex in-line systems and often require a significant amount of airport infrastructure modification and construction. In August 2011, TSA shifted its focus from installing optimal baggage screening systems to replacing aging machines (recapitalization). However, TSA plans to continue to optimize systems during many of its recapitalization projects."
Date:
April 27, 2012
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
The Greensheet (Dallas, Tex.), Vol. 36, No. 27, Ed. 1 Friday, April 27, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
April 27, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Dallas, Tex.), Vol. 36, No. 28, Ed. 1 Friday, April 27, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
April 27, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 43, No. 156, Ed. 1 Friday, April 27, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
April 27, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 43, No. 154, Ed. 1 Friday, April 27, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
April 27, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Broadband Loan and Grant Programs in the USDA’s Rural Utilities Service
This report provides information about the concern that has been raised over a "digital divide" between rural and urban areas with respect to broadband deployment.
Date:
April 27, 2012
Creator:
Kruger, Lennard G.
Object Type:
Report
System:
The UNT Digital Library
Brownwood Bulletin (Brownwood, Tex.), Vol. 112, No. 167, Ed. 1 Friday, April 27, 2012
Weekly newspaper from Brownwood, Texas that includes local, state and national news along with advertising.
Date:
April 27, 2012
Creator:
Deason, Gene
Object Type:
Newspaper
System:
The Portal to Texas History
Modifying the organic/electrode interface in Organic Solar Cells (OSCs) and improving the efficiency of solution-processed phosphorescent Organic Light-Emitting Diodes (OLEDs)
Organic semiconductors devices, such as, organic solar cells (OSCs), organic light-emitting diodes (OLEDs) and organic field-effect transistors (OFETs) have drawn increasing interest in recent decades. As organic materials are flexible, light weight, and potentially low-cost, organic semiconductor devices are considered to be an alternative to their inorganic counterparts. This dissertation will focus mainly on OSCs and OLEDs. As a clean and renewable energy source, the development of OSCs is very promising. Cells with 9.2% power conversion efficiency (PCE) were reported this year, compared to < 8% two years ago. OSCs belong to the so-called third generation solar cells and are still under development. While OLEDs are a more mature and better studied field, with commercial products already launched in the market, there are still several key issues: (1) the cost of OSCs/OLEDs is still high, largely due to the costly manufacturing processes; (2) the efficiency of OSCs/OLEDs needs to be improved; (3) the lifetime of OSCs/OLEDs is not sufficient compared to their inorganic counterparts; (4) the physics models of the behavior of the devices are not satisfactory. All these limitations invoke the demand for new organic materials, improved device architectures, low-cost fabrication methods, and better understanding of device physics. For …
Date:
April 27, 2012
Creator:
Xiao, Teng
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Report on Second Activations with the Lead Slowing Down Spectrometer
Summary On August 18 and 19 2011, five items were irradiated with neutrons using the Lead Slowing Down Spectrometer (LSDS). After irradiation, dose measurements and gamma-spectrometry measurements were completed on all of the samples. No contamination was found on the samples, and all but one provided no dose. Gamma-spectroscopy measurements qualitatively agreed with expectations based on the materials. As during the first activation run, we observed activation in the room in general, mostly due to 56Mn and 24Na. Most of the activation of the samples was short lived, with half-lives on the scale of hours to days, except for 60Co which has a half-life of 5.3 y.
Date:
April 27, 2012
Creator:
Stave, Sean C.; Mace, Emily K.; Pratt, Sharon L. & Warren, Glen A.
Object Type:
Report
System:
The UNT Digital Library
Modeling Responses of Naturally Fractured Geothermal Reservoir to Low-Pressure Stimulation
None
Date:
April 27, 2012
Creator:
Fu, P & Carrigan, C R
Object Type:
Article
System:
The UNT Digital Library
Surface Anchoring of Nematic Phase on Carbon Nanotubes: Nanostructure of Ultra-High Temperature Materials
Nuclear energy is a dependable and economical source of electricity. Because fuel supply sources are available domestically, nuclear energy can be a strong domestic industry that can reduce dependence on foreign energy sources. Commercial nuclear power plants have extensive security measures to protect the facility from intruders [1]. However, additional research efforts are needed to increase the inherent process safety of nuclear energy plants to protect the public in the event of a reactor malfunction. The next generation nuclear plant (NGNP) is envisioned to utilize a very high temperature reactor (VHTR) design with an operating temperature of 650-1000ðC [2]. One of the most important safety design requirements for this reactor is that it must be inherently safe, i.e., the reactor must shut down safely in the event that the coolant flow is interrupted [2]. This next-generation Gen IV reactor must operate in an inherently safe mode where the off-normal temperatures may reach 1500ðC due to coolant-flow interruption. Metallic alloys used currently in reactor internals will melt at such temperatures. Structural materials that will not melt at such ultra-high temperatures are carbon/graphtic fibers and carbon-matrix composites. Graphite does not have a measurable melting point; it is known to sublime starting about …
Date:
April 27, 2012
Creator:
Ogale, Amod A
Object Type:
Report
System:
The UNT Digital Library
An Advanced simulation Code for Modeling Inductive Output Tubes
During the Phase I program, CCR completed several major building blocks for a 3D large signal, inductive output tube (IOT) code using modern computer language and programming techniques. These included a 3D, Helmholtz, time-harmonic, field solver with a fully functional graphical user interface (GUI), automeshing and adaptivity. Other building blocks included the improved electrostatic Poisson solver with temporal boundary conditions to provide temporal fields for the time-stepping particle pusher as well as the self electric field caused by time-varying space charge. The magnetostatic field solver was also updated to solve for the self magnetic field caused by time changing current density in the output cavity gap. The goal function to optimize an IOT cavity was also formulated, and the optimization methodologies were investigated.
Date:
April 27, 2012
Creator:
Bui, Thuc & Ives, R. Lawrence
Object Type:
Report
System:
The UNT Digital Library