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50,269 Matching Results

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Best Match Title Creator Date Created (Newest) Date Created (Oldest) Date Added (Newest) Date Added (Oldest)
Energy conservation in citrus processing. Technical progress report, October 1, 1979-March 31, 1980 (open access)

Energy conservation in citrus processing. Technical progress report, October 1, 1979-March 31, 1980

The Sunkist Citrus Plant in Ontario, California, processes about 6 million pounds of citrus fruit per day to make products which include frozen concentrated juice; chilled, pasteurized, natural strength juice; molasses from peel; dried meal from peel; pectin; citrus oil; and bioflavonoids. The energy intensive operations at the plant include concentration, drying, and refrigeration. The objective of the two-year two-phase project is to identify an economically viable alternative to the existing method of meeting energy requirements. Progress on the technical work of Phase I is reported. The following are summarized: requirements (energy price projection, atmospheric emission requirements, citrus juice quality constraints, economic evaluations); characterization (basic citrus processing operations, energy consumption and fruit processed vs time, identification and measurement of energy uses, energy balance for a typical citrus juice evaporator); and thermodynamic analysis (heat pump model, thermal evaporator, and co-generation model).
Date: June 15, 1980
Creator: unknown
System: The UNT Digital Library
Summary Geologic Report on the UE20p Exploratory Hole, Area 20, Pahute Mesa, Nevada Test Site. (open access)

Summary Geologic Report on the UE20p Exploratory Hole, Area 20, Pahute Mesa, Nevada Test Site.

None
Date: April 1969
Creator: Jenkins, E. C.
System: The UNT Digital Library
Vacuum deposited polycrystalline silicon films for solar cell applications. Quarterly report, 1 April-30 June 1980 (open access)

Vacuum deposited polycrystalline silicon films for solar cell applications. Quarterly report, 1 April-30 June 1980

Polycrystalline p-type films were vacuum deposited onto TiB/sub 2/ coated alumina and sapphire substrates. Epitaxial layers were also formed on single crystal silicon substrates. Junctions in the layers were created by both gaseous diffusion in a tube furnace and by vacuum deposition. The TiB/sub 2/ vacuum deposited bottom electrodes have resistivities between 30 and 40 ..mu.. ..cap omega..-cm. All-vacuum-deposited solar cells were fabricated for the first time. Efficiencies approaching those in the diffused junction devices were achieved. The n-layers were deposited on the previously deposited p-layer/TiB/sub 2//ceramic sandwiches by vacuum deposition of silicon in a phosphine (PH/sub 3/) atmosphere. Photovoltaic data in diffused junction samples, including efficiency and spectral response measurements, indicate that crystallite size may no longer be the limiting factor in achieving high efficiency; rather, performance is now being limited by the presence of impurities in the vacuum deposition silicon base region.
Date: August 1, 1980
Creator: Feldman, C.; Arrington, III, C. H.; Blum, N. A. & Satkiewicz, F. G.
System: The UNT Digital Library
Direct Conversion Technology (open access)

Direct Conversion Technology

The overall objective of the Direct Conversion Technology task is to develop an experimentally verified technology base for promising direct conversion systems that have potential application for energy conservation in the end-use sectors. Initially, two systems were selected for exploratory research and advanced development. These are Alkali Metal Thermal-to-Electric Converter (AMTEC) and Two-Phase Liquid Metal MD Generator (LMMHD). This report describes progress that has been made during the first six months of 1992 on research activities associated with these two systems. (GHH)
Date: July 1, 1992
Creator: Back, L.H.; Fabris, G. & Ryan, M.A.
System: The UNT Digital Library
Results of the Radiological Survey at 83 Belle Avenue, Maywood, New Jersey (MJ047) (open access)

Results of the Radiological Survey at 83 Belle Avenue, Maywood, New Jersey (MJ047)

Maywood Chemical Works (MCW) of Maywood, New Jersey, generated process wastes and residues associated with the production and refining of thorium and thorium compounds from monazite ores from 1916 to 1956. MCW supplied rare earth metals and thorium compounds to the Atomic Energy Commission and various other government agencies from the late 1940s to the mid-1950s. Area residents used the sandlike waste from this thorium extraction process mixed with tea and cocoa leaves as mulch in their yards. Some of these contaminated wastes were also eroded from the site into Lodi Brook. At the request of the US Department of Energy (DOE), a group from Oak Ridge National Laboratory conducts investigative radiological surveys of properties in the vicinity of MCW to determine whether a property is contaminated with radioactive residues, principally {sup 232}Th, derived from the MCW site. The survey typically includes direct measurement of gamma radiation levels and soil sampling for radionuclide analyses. The survey of this site, 83 Belle Avenue, Maywood, New Jersey (MJ047), was conducted during 1988. 5 refs., 2 figs., 3 tabs.
Date: November 1, 1989
Creator: Foley, R. D. & Floyd, L. M.
System: The UNT Digital Library
Ocean energy systems. Quarterly report, January-March 1983 (open access)

Ocean energy systems. Quarterly report, January-March 1983

Progress is reported on the development of Ocean Thermal Energy Conversion (OTEC) systems that will provide synthetic fuels (e.g., methanol), energy-intensive products such as ammonia (for fertilizers and chemicals), and aluminum. The work also includes assessment and design concepts for hybrid plants, such as geothermal-OTEC (GEOTEC) plants. Another effort that began in the spring of 1982 is a technical advisory role to DOE with respect to their management of the conceptual and preliminary design activity of industry teams that are designing a shelf-mounted offshore OTEC pilot plant that could deliver power to Oahu, Hawaii. In addition, a program is underway to evaluate and test the Pneumatic Wave-Energy Conversion System (PWECS), an ocean-energy device consisting of a turbine that is air-driven as a result of wave action in a chamber. This Quarterly Report summarizes the work on the various tasks as of 31 March 1983.
Date: March 30, 1983
Creator: unknown
System: The UNT Digital Library
Theory and tests of two-phase turbines (open access)

Theory and tests of two-phase turbines

Two-phase turbines open the possibility of new types of power cycles operating with extremely wet mixtures of steam and water, organic fluids, or immiscible liquids and gases. Possible applications are geothermal power, waste-heat recovery, refrigerant expansion, solar conversion, transportation turbine engines, and engine bottoming cycles. A theoretical model for two-phase impulse turbines was developed. Apparatus was constructed for testing one- and two-stage turbines (using speed decrease from stage to stage). Turbines were tested with water-and-nitrogen mixtures and Refrigerant 22. Nozzle efficiencies were 0.78 (measured) and 0.72 (theoretical) for water-and-nitrogen mixtures at a water/nitrogen mixture ratio of 68, by mass; and 0.89 (measured) and 0.84 (theoretical) for Refrigerant 22 expanding from 0.02 quality to 0.28 quality. Blade efficiencies (shaft power before windage and bearing loss divided by nozzle jet power) were 0.63 (measured) and 0.71 (theoretical) for water-and-nitrogen mixtures and 0.62 (measured) and 0.63 (theoretical) for Refrigerant 22 with a single-stage turbine, and 0.70 (measured) and 0.85 (theoretical) for water-and-nitrogen mixtures with a two-stage turbine.
Date: March 15, 1982
Creator: Elliot, D.G.
System: The UNT Digital Library
Itemized Tax Deductions for Individuals: Data Analysis (open access)

Itemized Tax Deductions for Individuals: Data Analysis

This report analyzes data about reforming itemized tax deductions for individuals.
Date: February 12, 2014
Creator: Lowry, Sean
System: The UNT Digital Library
Navy Force Structure and Shipbuilding Plans: Background and Issues for Congress (open access)

Navy Force Structure and Shipbuilding Plans: Background and Issues for Congress

This report provides background information and presents potential issues for Congress concerning the Navy's ship force-structure goals and shipbuilding plans. The planned size of the Navy, the rate of Navy ship procurement, and the prospective affordability of the Navy's shipbuilding plans have been matters of concern for the congressional defense committees for the past several years. Decisions that Congress makes on Navy shipbuilding programs can substantially affect Navy capabilities and funding requirements, and the U.S. shipbuilding industrial base.
Date: February 10, 2014
Creator: O'Rourke, Ronald
System: The UNT Digital Library
Prevalence of Mental Illness in the United States: Data Sources and Estimates (open access)

Prevalence of Mental Illness in the United States: Data Sources and Estimates

This report briefly describes the methodology and results of three large surveys (funded in whole or in part by the U.S. Department of Health and Human Services) that provide national prevalence estimates of diagnosable mental illness: the National Comorbidity Survey Replication (NCS-R), the National Comorbidity Survey Replication Adolescent Supplement (NCS-A), and the National Survey on Drug Use and Health (NSDUH). The report then presents prevalence estimates of any mental illness and serious mental illness based on each survey and ends with a brief discussion of how these prevalence estimates might inform policy discussions
Date: February 28, 2014
Creator: Bagalman, Erin & Napili, Angela
System: The UNT Digital Library
Transportation Spending and "Buy America" Requirements (open access)

Transportation Spending and "Buy America" Requirements

This report discusses the Buy America Act, the popular name for a group of domestic content restrictions that have been attached to funds administered by the Department of Transportation (DOT).
Date: February 4, 2014
Creator: Dolan, Alissa M.
System: The UNT Digital Library
Women in the United States Congress: Historical Overview, Tables, and Discussion (open access)

Women in the United States Congress: Historical Overview, Tables, and Discussion

This report discusses the impact of women in Congress and historical information, such as the number and percentage of women in Congress over time, means of entry to Congress, comparisons to international and state legislatures, records for tenure, firsts for women in Congress, women in leadership, and African-American and Asian-Pacific American women in Congress.
Date: February 18, 2014
Creator: Manning, Jennifer E.; Shogan, Colleen J. & Brudnick, Ida A.
System: The UNT Digital Library
The 2014 Quadrennial Defense Review (QDR) and Defense Strategy: Issues for Congress (open access)

The 2014 Quadrennial Defense Review (QDR) and Defense Strategy: Issues for Congress

This report briefly reviews the statutory Quadrennial Defense Review (QDR) mandate and characterizes the context for the 2014 QDR. It also raises a series of issues that Congress may choose to consider in evaluating the QDR mandate, the 2014 QDR, and the Department of Defense (DOD) strategic direction more broadly.
Date: February 24, 2014
Creator: Dale, Catherine
System: The UNT Digital Library
The U.S.-Colombia Free Trade Agreement: Background and Issues (open access)

The U.S.-Colombia Free Trade Agreement: Background and Issues

This report discusses the proposed U.S.-Colombia Free Trade Agreement (CFTA) signed November 22, 2006, which has not yet been approved by Congress. It includes an overview of the proposed CFTA and U.S.-Colombia trade, background on Colombia, issues for Congress to consider, Colombia's plan to improve labor rights, and the actions that Colombia has already taken to improve violence, labor, and human rights within the country.
Date: February 14, 2014
Creator: Villarreal, M. Angeles
System: The UNT Digital Library
Wildfire Fuels and Fuel Reduction (open access)

Wildfire Fuels and Fuel Reduction

This report examines wildfire biomass fuels. It discusses fuel characteristics and their relation to wildfire intensity and spread, and includes a description of actions proposed to reduce biomass fuel levels, their effectiveness for protecting property and resources from wildfires, and their impacts on other resource values. It concludes with an examination of the federal authorities for fuel reduction activities on federal and non-federal lands, together with data on the funding provided under each of these authorities.
Date: May 13, 2013
Creator: Bracmort, Kelsi
System: The UNT Digital Library
A Guide to U.S. Military Casualty Statistics: Operation New Dawn, Operation Iraqi Freedom, and Operation Enduring Freedom (open access)

A Guide to U.S. Military Casualty Statistics: Operation New Dawn, Operation Iraqi Freedom, and Operation Enduring Freedom

This report presents statistics regarding U.S. military casualties in the active Operation Enduring Freedom (OEF, Afghanistan), as well as operations that have ended: Operation New Dawn (OND, Iraq) and Operation Iraqi Freedom (OIF, Iraq). It includes statistics on post-traumatic stress disorder (PTSD), traumatic brain injury (TBI), amputations, evacuations, and the demographics of casualties. Some of these statistics are publicly available at the Department of Defense's (DOD's) website; others have been obtained through contact with experts at the DOD.
Date: February 19, 2014
Creator: Fischer, Hannah
System: The UNT Digital Library
Health Care for Veterans: Answers to Frequently Asked Questions (open access)

Health Care for Veterans: Answers to Frequently Asked Questions

This report provides responses to frequently asked questions about health care provided to veterans through the Veterans Health Administration (VHA). It is intended to serve as a quick reference to provide easy access to information. Where applicable, it provides the legislative background pertaining to the question.
Date: February 25, 2014
Creator: Panangala, Sidath Viranga & Bagalman, Erin
System: The UNT Digital Library
The Army's Ground Combat Vehicle (GCV) Program: Background and Issues for Congress (open access)

The Army's Ground Combat Vehicle (GCV) Program: Background and Issues for Congress

This report looks at the history and current need for a Ground Combat Vehicle (GCV) program. Potential issues for Congress include the role of the GCV and the need for the program in a downsized Army that will likely have fewer heavy brigade combat teams (HBCTs).
Date: February 28, 2014
Creator: Feickert, Andrew
System: The UNT Digital Library
Homelessness: Targeted Federal Programs and Recent Legislation (open access)

Homelessness: Targeted Federal Programs and Recent Legislation

This report describes existing federal programs that provide targeted assistance to homeless individuals and families, and discusses federal efforts to end homelessness. It also contains tables that outline funding levels for various related programs.
Date: February 3, 2014
Creator: Perl, Libby; Bagalman, Erin; Fernandes-Alcantara, Adrienne L.; Heisler, Elayne J.; McCallion, Gail; McCarthy, Francis X. et al.
System: The UNT Digital Library
FBI Director: Appointment and Tenure (open access)

FBI Director: Appointment and Tenure

This report reviews the legislative history surrounding the enactment of the 1968 and 1976 amendments to the appointment of the FBI Director, as well as information on the nominees to the FBI Directorship since 1972. It also provides a legal overview of the extension of a Director's tenure.
Date: February 19, 2014
Creator: Chu, Vivian S. & Hogue, Henry B.
System: The UNT Digital Library
FY2014 National Defense Authorization Act: Selected Military Personnel Issues (open access)

FY2014 National Defense Authorization Act: Selected Military Personnel Issues

This report focuses exclusively on the annual defense authorization process and the interest Congress members have in the military.
Date: February 24, 2014
Creator: Jansen, Don J.; Burrelli, David F.; Kapp, Lawrence & Theohary, Catherine A.
System: The UNT Digital Library
Saudi Arabia: Background and U.S. Relations (open access)

Saudi Arabia: Background and U.S. Relations

This report discusses the current state of the kingdom of Saudi Arabia, its relationship with the United States, and future initiatives to further develop U.S.-Saudi relations.
Date: February 12, 2014
Creator: Blanchard, Christopher M.
System: The UNT Digital Library
Mandatory Minimum Sentencing Legislation in the 113th Congress (open access)

Mandatory Minimum Sentencing Legislation in the 113th Congress

This report discusses legislation that would establish or enhance a statutory minimum term of imprisonment for some federal crimes, including drug offenses, crimes involving firearms, aggravated computer abuse, illegal reentry, and violence against public servants.
Date: November 5, 2013
Creator: Doyle, Charles
System: The UNT Digital Library
EU-U.S. Economic Ties: Framework, Scope, and Magnitude (open access)

EU-U.S. Economic Ties: Framework, Scope, and Magnitude

This report provides background information and analysis of the U.S.-EU (European Union) economic relationship related to the costs and benefits of closer U.S. economic ties with the EU. It examines the economic and political framework of the relationship and the scope and magnitude of the ties based on data from various sources. In addition, the report analyzes the implications these factors have for U.S. economic policy toward the EU.
Date: February 21, 2014
Creator: Cooper, William H.
System: The UNT Digital Library