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open access

11th National Conference on Science, Policy, and the Environment: Our Changing Oceans

Description: On January 19-21, 2011, The National Council for Science and the Environment (NCSE) successfully convened its 11th National Conference on Science, Policy and the Environment: Our Changing Oceans in Washington, DC at the Ronald Reagan Building and International Trade Center. Over 1,247 participants attended the conference, representing federal, state and local governments, university and colleges across the US, civil society organizations, the business community, and international entities. In addition, the conference was webcast to an audience across several states. The conference provided a forum to examine the profound changes our ocean will undergo over the next 25-50 years and share various perspectives on the new research, tools, and policy initiatives to protect and sustain our ocean. Conference highlights and recommendations are available to the public on NCSE's conference website, www.OurChangingOceans.org.
Date: April 17, 2012
Creator: Saundry, Peter
Partner: UNT Libraries Government Documents Department
open access

2006 Y-12 National Security Complex Annual Illness and Injury Surveillance Report

Description: The U.S. Department of Energy’s (DOE) commitment to assuring the health and safety of its workers includes the conduct of illness and injury surveillance activities that provide an early warning system to detect health problems among workers. The Illness and Injury Surveillance Program monitors illnesses and health conditions that result in an absence, occupational injuries and illnesses, and disabilities and deaths among current workers.
Date: April 17, 2008
Creator: United States. Department of Energy. Office of Health, Safety, and Security.
Partner: UNT Libraries Government Documents Department
open access

3Q/4Q00 Annual M-Area and Metallurgical Laboratory Hazardous Waste Management Facilities Groundwater Monitoring and Corrective-Action Report - Third and Fourth Quarters 2000 - Volumes I, II, and II

Description: This report describes the groundwater monitoring and corrective-action program at the M-Area Hazardous Waste Management Facility (HWMF) and the Metallurgical Laboratory (Met Lab) HWMF at the Savannah River Site (SRS) during 2000. This program is required by South Carolina Resource Conservation and Recovery Act (RCRA) Hazardous Waste Permit SC1890008989 and Section 264.100(g) of the South Carolina Hazardous Waste Management Regulations.
Date: April 17, 2001
Creator: Cole, C.M. Sr.
Partner: UNT Libraries Government Documents Department
open access

Active Desiccant Dehumidification Module Integration with Rooftop Packaged HVAC

Description: This report summarizes a research and development program that produced a stand-alone active desiccant module (ADM) that can be easily integrated with new or existing packaged cooling equipment. The program also produced a fully integrated hybrid system, combining the active desiccant section with a conventional direct expansion air-conditioning unit, that resulted in a compact, low-cost, energy-efficient end product. Based upon the results of this investigation, both systems were determined to be highly viable products for commercialization. Major challenges--including wheel development, compact packaging, regeneration burner development, control optimization, and low-cost design--were all successfully addressed by the final prototypes produced and tested as part of this program. Extensive laboratory testing was completed in the SEMCO laboratory for each of the two ADM system approaches. This testing confirmed the performance of the ADM systems to be attractive compared with that of alternate approaches currently used to precondition outdoor air, where a return air path is not readily available for passive desiccant recovery or where first cost is the primary design criterion. Photographs, schematics, and performance maps are provided for the ADM systems that were developed; and many of the control advantages are discussed. Based upon the positive results of this research and development program, field tests are under way for fully instrumented pilot installations of ADM systems in both a hotel/motel and a restaurant.
Date: April 17, 2002
Creator: Fischer, J.
Partner: UNT Libraries Government Documents Department
open access

Adam Walsh Child Protection and Safety Act: A Sketch

Description: This report briefly summarizes the Adam Walsh Child Protection Act. The report specifically notes the four intentions the law has such as reformulating the federal standards for sex offender registration, and amending criminal law and procedure at the federal level. Finally, the report calls for the creation of the National Child Abuse Registry which will provide regulation on child safety.
Date: April 17, 2007
Creator: Doyle, Charles
Partner: UNT Libraries Government Documents Department
open access

Adhesion hysteresis of silane coated microcantilevers

Description: The authors have developed a new experimental approach for measuring hysteresis in the adhesion between micromachined surfaces. By accurately modeling the deformations in cantilever beams that are subject to combined interfacial adhesion and applied electrostatic forces, they determine adhesion energies for advancing and receding contacts. They draw on this new method to examine adhesion hysteresis for silane coated micromachined structures and found significant hysteresis for surfaces that were exposed to high relative humidity (RH) conditions. Atomic force microscopy studies of these surfaces showed spontaneous formation of agglomerates that they interpreted as silages that have irreversibly transformed from uniform surface layers at low RH to isolated vesicles at high RH. They used contact deformation models to show that the compliance of these vesicles could reasonably account for the adhesion hysteresis that develops at high RH as the surfaces are forced into contact by an externally applied load.
Date: April 17, 2000
Creator: DE BOER,MAARTEN P.; KNAPP,JAMES A.; MICHALSKE,TERRY A.; SRINIVASAN,U. & MABOUDIAN,R.
Partner: UNT Libraries Government Documents Department
open access

Advances in ICF power reactor design

Description: Fifteen ICF power reactor design studies published since 1980 are reviewed to illuminate the design trends they represent. There is a clear, continuing trend toward making ICF reactors inherently safer and environmentally benign. Since this trend accentuates inherent advantages of ICF reactors, we expect it to be further emphasized in the future. An emphasis on economic competitiveness appears to be a somewhat newer trend. Lower cost of electricity, smaller initial size (and capital cost), and more affordable development paths are three of the issues being addressed with new studies.
Date: April 17, 1985
Creator: Hogan, W.J. & Kulcinski, G.L.
Partner: UNT Libraries Government Documents Department
open access

Agricultural Conservation: A Guide to Programs

Description: This report provides a listing of federal agricultural conservation assistance programs. Each listing includes a brief description of the program, information on major amendments in the Agricultural Act of 2014 (P.L. 113-79, 2014 farm bill), national scope and availability, states with the greatest participation, the backlog of applications or other measures of continuing interest, program funding authority, FY2018 funding, FY2019 Administration budget request, statutory authority, the authorization expiration date, and a link to the program's website.
Date: April 17, 2018
Creator: Stubbs, Megan
Partner: UNT Libraries Government Documents Department
open access

Agricultural Export and Food Aid Programs

Description: This report discusses projected agricultural imports and exports for FY2003, as well as legislation that deals with federal programs in support of agricultural exports and federal aid dedicated to farms and agricultural reform.
Date: April 17, 2003
Creator: Hanrahan, Charles E.
Partner: UNT Libraries Government Documents Department
open access

Air Pollution: Status of Implementation and Issues of the Clean Air Act Amendments of 1990

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on the 1990 Clean Air Act amendments, focusing on: (1) the status of the Environmental Protection Agency's (EPA) implementation of the requirements established by the 1990 amendments; and (2) views from state governments, local programs, industries that are regulated under the act, and environmental advocacy groups (collectively referred to as stakeholders) on the issues that have either helped or hindered the implementation of the 1990 amendments."
Date: April 17, 2000
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
open access

Air Quality: EPA's 2006 Changes to the Particulate Matter (PM) Standard

Description: On October 17, 2006,3 the EPA published its revisions to the National Ambient Air Quality Standards (NAAQS) for particulates to provide protection against potential health effects associated with short- and long-term exposure to particulate matter (including chronic respiratory disease and premature mortality). In order to better understand EPA's actions, this report provides an analysis of the agency's final 2006 revisions to the particulates NAAQS, and the estimated costs and benefits of the new standards and of more stringent alternatives analyzed.
Date: April 17, 2008
Creator: Esworthy, Robert & McCarthy, James E.
Partner: UNT Libraries Government Documents Department
open access

Airport Improvement Program Reauthorization Legislation in the 106th Congress

Description: This report discusses the Airport Improvement Program (AIP), which provides federal grants to airports for capital development. This report also discusses the Aviation Investment and Reform Act for the 21st Century, also referred to as AIR21, which includes provisions for increases in AIP spending, among other things. Primarily, this report discusses the legislative processes surrounding the enaction of these laws and the various appropriations the laws authorize.
Date: April 17, 2000
Creator: Kirk, Robert S.
Partner: UNT Libraries Government Documents Department
open access

Altitude performance of pentaborane - JP-4 fuel blends in a modified J47 combustor

Description: From Introduction: "Experimental investigations of the combustion characteristics of diborane, pentaborane, and pentaborane-hydrocarbon blends in modified turbojet combustors have been conducted at this laboratory at the request of the Bureau of Aeronautics, Department of the Navy, as part of Project Zip. Results of these single-combustor tests are presented in references 2 to 5."
Date: April 17, 1957
Creator: Branstetter, J. Robert & Kaufman, Warner B.
Partner: UNT Libraries Government Documents Department
captions transcript

[Alumni Awards Banquet; April 17, 1998]

Description: Video recording of Alumni Awards Banquet of April 17, 1998. Seated at the head table are: Tom W. Wren, Jane Wren, Norman F. Gant, Johanna Hurley, Alfred F. Hurley, Joe Rode, Pamela Cardwell, F. Layne Cardwell, Linda F. Allmand, Flora Wilhite, and Jerry Farrington. The following awards were presented at this event: President's Citation, Ulys Knight Spirit Award, Outstanding Alumnus/Alumna Service Awards, Honorary Alumnus/Alumna Awards, Green Glory Awards, and the Distinguished Alumnus/Alumna Awards.
Date: April 17, 1998
Duration: 1 hour 13 minutes 19 seconds
Partner: UNT Libraries Special Collections
open access

AMENABILITY TESTING OF LaBAJADA ORE

Description: Data are presented on the results of acid and carbonate leaching studies on samples of ore from the LaBajada Mine of the Lone Star Mining Company, Santa Fe County, New Mexico. (auth)
Date: April 17, 1958
Creator: Johnson, R.U.
Partner: UNT Libraries Government Documents Department
open access

America COMPETES Act: Programs, Funding, and Selected Issues

Description: This report explores and describes in detail the America COMPETES Act (P.K. 110-69), which became law on August 9, 2007. The act responds to concerns that the United States may not be able to compete economically with other nations in the future due to insufficient investment today in science and technology research and science, technology, engineering, and mathematics (STEM) education and workforce development. This report explains the aims and design of the America COMPETES Act, what funding developments the act authorizes, what education activities the act involves, and related legislation and government programs.
Date: April 17, 2009
Creator: Stine, Deborah D.
Partner: UNT Libraries Government Documents Department
open access

Ames test mutagenicity studies of the subfractions of the mild gasification composite material, MG-120

Description: Mutagenicity of six mild gasification product samples was studied using the Ames Salmonella/microsomal assay system. The results of the Ames testing of the MG-119 and MG-120 subfractions indicate significant mutagenic activity only in the nonpolar neutral fraction. The activity was evident on bacterial strains, TA98 and TA100, with and without metabolic activation for MG-120, and with metabolic activation for MG-119. Previous testing of MG-119 and MG-120 when solvated in DMSO had shown possible, but unconfirmable, mutagenic activity. Tween 80-solvated MG-119 and MG-120 showed low, but significant, mutagenic activity only on TA98 with metabolic activation. Comparison of these results indicate an inhibition of the mutagenic components by nonmutagenic components in the complex mixture. 4 refs., 2 tabs.
Date: April 17, 1992
Partner: UNT Libraries Government Documents Department
open access

Ames test mutagenicity studies of the subfractions of the mild gasification composite material, MG-120. [Quarterly report, January--March 1992]

Description: Mutagenicity of six mild gasification product samples was studied using the Ames Salmonella/microsomal assay system. The results of the Ames testing of the MG-119 and MG-120 subfractions indicate significant mutagenic activity only in the nonpolar neutral fraction. The activity was evident on bacterial strains, TA98 and TA100, with and without metabolic activation for MG-120, and with metabolic activation for MG-119. Previous testing of MG-119 and MG-120 when solvated in DMSO had shown possible, but unconfirmable, mutagenic activity. Tween 80-solvated MG-119 and MG-120 showed low, but significant, mutagenic activity only on TA98 with metabolic activation. Comparison of these results indicate an inhibition of the mutagenic components by nonmutagenic components in the complex mixture. 4 refs., 2 tabs.
Date: April 17, 1992
Partner: UNT Libraries Government Documents Department
open access

Ammonia Henry's Law Constants in SRS High Level Waste Pump Tanks

Description: The High Level Waste Tank Farms store and process high-level liquid wastes from a number of sources including F- and H-Canyons. These wastes are made alkaline prior to transfer to the Tank Farm and are subject to acceptance based on their composition. These wastes may contain significant concentrations of ammonia from flushing of the process vessel vent system. The Authorization Basis for the Tank Farm limits ammonia concentrations in canyon receipts to control flammability in pump tanks and waste tanks. However, during flushing of the canyon process vessel vent systems, the current limits pose significant operational restrictions. It was originally thought that the current limits based on data obtained by Pacific Northwest National Laboratory (PNNL), on a Hanford salt solution might be overly conservative with respect to salt solutions normally found in SRS Pump Tanks. However, on investigation of the possible range of concentrations based on canyon transfer data, it was found that pump tank salt solution concentrations probably did not differ significantly from the salt solution tested by PNNL. This report documents the work performed as originally described in the task technical plan.
Date: April 17, 2001
Creator: Swingle, R.F.
Partner: UNT Libraries Government Documents Department
open access

Analysis of granular flow in a pebble-bed nuclear reactor

Description: Pebble-bed nuclear reactor technology, which is currently being revived around the world, raises fundamental questions about dense granular flow in silos. A typical reactor core is composed of graphite fuel pebbles, which drain very slowly in a continuous refueling process. Pebble flow is poorly understood and not easily accessible to experiments, and yet it has a ma jor impact on reactor physics. To address this problem, we perform full-scale, discrete-element simulations in realistic geometries, with up to 440,000 frictional, viscoelastic 6cm-diameter spheres draining in a cylindrical vessel of diameter 3.5m and height 10m with bottom funnels angled at 30◦ or 60◦ . We also simulate a bidisperse core with a dynamic central column of smaller graphite moderator pebbles and show that little mixing occurs down to a 1:2 diameter ratio. We analyze the mean velocity, diffusion and mixing, local ordering and porosity (from Voronoi volumes), the residence-time distribution, and the effects of wall friction and discuss implications for reactor design and the basic physics of granular flow.
Date: April 17, 2006
Creator: Rycroft, C. H.; Grest, Gary S.; Landry, James W. & Bazant, Martin Z.
Partner: UNT Libraries Government Documents Department
open access

Analysis of the heat and mass transfer processes of a UO/sub 2/ bubble in sodium for the Fuel Aerosol Simulant Test (FAST). [LMFBR]

Description: The anticipated behavior of uranium oxide vapor bubbles produced by the capacitor discharge vaporization (CDV) method in the Fuel Aerosol Simulant Test (FAST) Facility is discussed on the basis of relatively simple physical models. Results of calculations for the rate of bubble rise and for heat and mass transfer rates are presented. Parametric studies indicate that future analysis efforts should emphasize the diffusion condensation process and the loss of heat from the bubble by radiation. Transfer of heat in the surrounding sodium is rapid enough that simplified models should be adequate. No important effects were noted in connection with bubble depth, initial quantity of UO/sub 2/, or initial superheat.
Date: April 17, 1979
Creator: Tobias, M.L.
Partner: UNT Libraries Government Documents Department
open access

Analysis of the Z dependence of laser generated suprathermal electron temperature

Description: Recent experiments with high Z disks on the Argus facility have exteanded our knowledge of the temperature (inferred from the slope of the hard x-ray spectrum) of laser generated suprathermal electrons, from the previous regime of 1 less than or equal to Z less than or equal to 30 to the Z approx. = 80 regime. The systematic rise of temperature with Z is theoretically analyzed. We believe that material albedoes (electron reflectivity) which increase with Z can account for this behavior, since electrons can make multiple passes through the region of resonant electric fields and are thus reheated. We treat this effect quantitatively and obtain reasonable agreement with experiment. The effects of magnetic fields and filamentation are also examined.
Date: April 17, 1979
Creator: Rosen, M.D. & Estabrook, K.G.
Partner: UNT Libraries Government Documents Department
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