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Office of Scientific & Technical Information Technical Reports
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Conceptual model for regional radionuclide transport from a basalt repository site. Final draft, technical memorandum
This technical memorandum was prepared to: (1) describe a typical basalt radionuclide repository site, (2) describe geologic and hydrologic processes associated with regional radionuclide transport in basalts, (3) define the parameters required to model regional radionuclide transport from a basalt repository site, and (4) develop a ''conceptual model'' of radionuclide transport from a basalt repository site. In a general hydrological sense, basalts may be described as layered sequences of aquifers and aquitards. The Columbia River Basalt, centered near the semi-arid Pasco Basin, is considered by many to be typical basalt repository host rock. Detailed description of the flow system including flow velocities with high-low hydraulic conductivity sequences are not possible with existing data. However, according to theory, waste-transport routes are ultimately towards the Columbia River and the lengths of flow paths from the repository to the biosphere may be relatively short. There are many physical, chemical, thermal, and nuclear processes with associated parameters that together determine the possible pattern of radionuclide migration in basalts and surrounding formations. Brief process descriptions and associated parameter lists are provided. Emphasis has been placed on the use of the distribution coefficient in simulating ion exchange. The use of the distribution coefficient approach is limited …
Date:
May 23, 1980
Creator:
Walton, W.C.; Voorhees, M.L. & Prickett, T.A.
Object Type:
Report
System:
The UNT Digital Library
Radian DART microcomputer system hardware documentation operation system description. DART II documentation
This operator's manual for the DART II Data Acquisition, Reduction, and Transmission system is divided into the following sections: system capabilities and configuration; ways in which the microprocessor-based central processing unit communicates with the memory and peripheral devices; theory of operation for the system components; and a section of reference data including schematic diagrams, cable lists, device specification sheets and other detailed information. (GHT)
Date:
May 23, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Tandem mirror reactors with thermal barriers
Preliminary calculations of Q and magnet designs are presented for three different versions of tandem mirror reactors (TMR) using thermal barriers to enhance plug potentials by auxiliary electron heating. These three versions, called A-cell-barrier TMR, axisymmetric-barrier TMR, and inside-barrier TMR, exhibit reduced plug density (n/sub p/ << 10/sup 19/ m/sup -3/) and less required magnetic mirror field (B/sub mirror approx. = 9 T) compared to TMR designs without thermal barriers. A-cell barrier TMR Q's range from 5 to 25 depending on the central-cell length (L/sub c/ = 100 to 200 m) and peak center-cell beta ..beta../sub c/ (0.3 to 0.7) allowed by MHD stability. Axisymmetric-barrier TMR Q's range from 14 at L/sub c/ = 100 m to 30 at L/sub c/ = 200 m, if peak ..beta../sub c/ = 1. From a global equilibrium model for the inside-barrier TMR, Q values greater than 15 are achieved for ..nu.. = 0.5 in the modified Boltzmann relation for the plug potential. Even higher Q's are obtained using ECRF heating in the barrier to create a hot, mirror-trapped electron population. TMR's burning D-D as a fuel have been analyzed with a modified version of the global equilibrium model and under the assumption of …
Date:
May 23, 1980
Creator:
Logan, B. G.; Arfin, B. & Barr, W. L.
Object Type:
Article
System:
The UNT Digital Library
Revegetation of Alaskan coal mine spoils. Progress report
Activities initiated after the start of the revegetation project on Alaskan coal mine spoils on September 1, 1979 have consisted mainly of some fall plantings (dormant seedings) and soil and coal spoil samplings and analyses. Because of the late summer start for the project, only a limited amount of field work could be initiated in plant material studies. This consisted of a fall planting at the Usibelli mine site at Healy in interior Alaska. The planting was intended to test the efficacy of seeding in the frost period following the growing season, requiring the seed to remain dormant over winter and to germinate when conditions become favorable in late spring. It also was intended as a comparison of a number of different grasses. Thirty entries were seeded in three replications. Fifteen species of grasses and a clover were included in the trial. The site provided for the trial was on overburden material along a streambed. Among the entries were eight cultivars of introduced grasses, five cultivars of native Alaskan germplasm, one introduced clover cultivar, and sixteen experimental grasses mainly of Alaskan origin.
Date:
May 23, 1980
Creator:
Mitchell, W W; Mitchell, G A & McKendrick, J D
Object Type:
Report
System:
The UNT Digital Library
OGRE-P1, A Monte Carlo Program for Computing Gamma-Ray Transmission Through Laminated Slabs
A Monte Carlo IBM-7090 program (OGRE-P1) was written for calculation of the dose rate on one side of a slab owing to an isotropic, cosine, or collimated monoenergetic gamma radiation source on the other side of the slab. A maximum of 50 homogeneous regions are permitted. (auth)
Date:
May 23, 1962
Creator:
Trubey, K. K.; Penny, S. K. & Emmett, M. B.
Object Type:
Report
System:
The UNT Digital Library
[Letter from Rae Huan Griest to the BRAC - May 23, 2005]
Letter from Rae Huan Griest to the Defense Base Closure and Realignment Commission (BRAC) pleading that Cannon Air Force Base in Clovis, New Mexico, remain open.
Date:
May 23, 2005
Creator:
Griest, Rae Huan
Object Type:
Letter
System:
The UNT Digital Library
Wildfire Damages to Homes and Resources: Understanding Causes and Reducing Losses
This report focuses on options for protecting structures and for protecting wildlands and natural resources from wildfires. It begins with a brief overview of the nature of wildfires, followed by a discussion of protecting structures. Then, it discusses wildfire damages to wildlands and natural resources, fuel treatment options and their benefits and limitations, and public involvement in federal decisions.
Date:
May 23, 2013
Creator:
Bracmort, Kelsi
Object Type:
Report
System:
The UNT Digital Library
Nuclear Weapons: NNSA Needs to Establish a Cost and Schedule Baseline for Manufacturing a Critical Nuclear Weapon Component
A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Energy's National Nuclear Security Administration (NNSA) is responsible for manufacturing pits, a key component in a nuclear warhead. The department lost its ability to manufacture pits in 1989 with the closing of the Rocky Flats Plant. In 1996, the Los Alamos National Laboratory (LANL) was directed to reestablish a pit manufacturing capability, starting with a limited number of pits for the W88 warhead. In recent years, NNSA has considered ways to increase its pit manufacturing capacity, including building a new, large-scale pit manufacturing facility. It has also proposed producing pits for the Reliable Replacement Warhead (RRW). GAO was asked to determine the (1) extent to which NNSA achieved its major goals for reestablishing its pit manufacturing capability, (2) factors that currently constrain its ability to increase its pit manufacturing capacity, and (3) status of its plans for future pit manufacturing. For this review, GAO met with NNSA and LANL officials, reviewed agency documents, and visited the nuclear facility used to manufacture pits."
Date:
May 23, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
National Credit Union Central Liquidity Facility Lending Before the Year 2000 Date Change
Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the lending activity of the National Credit Union Central Liquidity Facility (CLF), focusing on: (1) CLF's lending during October through December 1999; and (2) credit union borrowing from the discount window and the comparison between credit unions' cost of borrowing from CLF to the cost of alternative sources of liquidity."
Date:
May 23, 2000
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Medicare: Utilization of Home Health Care by State
Correspondence issued by the General Accounting Office with an abstract that begins "This report discusses the variation in Medicare home health use across states. Using home health claims for the first 6 months of 2001 from the Centers for Medicare and Medicaid, GAO compiled statistics on home health users, home health visits, home health episodes, and the percentage of home health users with multiple episodes for each state. A home health episode, the basis for Medicare payment under the prospective payment system, is up to a 60-day period of care during which any number of visits may be provided."
Date:
May 23, 2002
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Humanitarian Assistance: Protecting Refugee Women and Girls Remains a Significant Challenge
A letter report issued by the General Accounting Office with an abstract that begins "Women and children refugees, who comprise 80 percent of the estimated 12 million refugees worldwide, are among the world's most vulnerable populations. They are subject to gender-based violence, including physical harm, rape, and unequal access to humanitarian assistance. GAO was asked to (1) assess efforts by the U.N. High Commissioner for Refugees (UNHCR) to protect refugees, especially with regard to women and girls; (2) determine what steps U.N. and international organizations have taken to prevent sexual exploitation of refugee women by humanitarian workers; and (3) describe U.S. government efforts to support adequate protection for vulnerable populations."
Date:
May 23, 2003
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Tax Debt Collection: Measuring Taxpayer Opinions Regarding Private Collection Agencies
Testimony issued by the Government Accountability Office with an abstract that begins "Every year the Internal Revenue Service (IRS) does not collect tens of billions of dollars in delinquent taxes. In 2004, Congress authorized IRS to use private collection agencies (PCA) to help collect some of these debts. To ensure that taxpayers are treated properly and that the program achieves the desired results, IRS contracted with a consulting company to perform a survey of right party contacts--those individuals who confirmed their identity and tax debt to PCAs over the telephone. The consulting company reported overall taxpayer satisfaction ratings from 94 to 96 percent for contacts made from November 2006 through February 2007. At the request of the Chairman, House Committee on Ways and Means, GAO attempted to obtain, for the period September 2006 through February 2007, the number of tax debt cases IRS referred to PCAs, right party contacts who were offered the taxpayer survey, and right party contacts who took the survey. GAO was also asked to report any other key observations related to the PCA program and taxpayer survey. To perform this work, GAO collected information and interviewed officials from IRS, the consulting group that administered the survey, …
Date:
May 23, 2007
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Weapons of Mass Destruction: U.N. Confronts Significant Challenges in Implementing Sanctions against Iraq
A letter report issued by the General Accounting Office with an abstract that begins "United Nations sanctions were first imposed in August 1990 following Iraq's invasion of Kuwait. In 1991, the Security Council established sanctions to stop Iraq from acquiring or developing biological, chemical, and nuclear weapons. To achieve this, the Security Council prohibited all nations from buying Iraqi oil or selling the country any commodities except for food and medicine. It further established a weapons inspection regime to ensure that Iraq destroyed its weapons of mass destruction and stopped its weapons programs. Concerned about the humanitarian need of the Iraqi people, in 1995 the Security Council established a controls program for Iraq's oil sales that allows for the purchase of food, medicine, and essential civilian goods (the oil for food program). With international support for the sanctions eroding, in 2001 the Security Council passed a new sanctions resolution to address humanitarian concerns while keeping Iraq from rebuilding its weapons systems. Although the U.N. controlled $51 billion of Iraq's oil revenues from 1997 to 2001, Iraq earned an additional $6.6 billion in illegal revenue from oil smuggling and surcharges during the same time. Further, although the sanctions prohibit Iraq from …
Date:
May 23, 2002
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Managing Critical Isotopes: DOE's Isotope Program Needs Better Planning for Setting Prices and Managing Production Risks
A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Energys (DOE) Isotope Development and Production for Research and Applications program (Isotope Program) provides over 300 different isotopes for commercial and research applications. The Isotope Program is responsible for 243 stable isotopes that are no longer produced in the United States but are sold from the programs existing inventory and for 55 radioactive isotopes, called radioisotopes, that the program is able to produce at DOE facilities. An additional 10 isotopes sold by the Isotope Program are provided by the National Nuclear Security Administration (NNSA), a separate agency within DOE, as by-products of its nuclear weapons program."
Date:
May 23, 2012
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Immigration and Naturalization Service: Information on the Disposition of Naturalization Cases and on Courtesy as a Factor in Employee Performance Appraisals
Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on the Immigration and Naturalization Service's (INS) naturalization application processing, focusing on: (1) the disposition of naturalization cases from the Chicago District Office that were lost at the Nebraska Service Center in 1997 or 1998; and (2) determining if INS employee performance appraisals included a dimension pertaining to the courteousness with which staff provide service to customers."
Date:
May 23, 2000
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Use of Value Engineering in Defense Acquisitions
Correspondence issued by the General Accounting Office with an abstract that begins "Value engineering (VE) is a recognized technique for reducing costs while maintaining or improving productivity and quality. The Department of Defense's (DOD) VE program consists of both government- and contractor-developed cost-reduction projects designed to reduce a system's life-cycle costs. In response to Congress' request, we agreed to provide information on (1) the role the VE program has played in supporting cost reduction in DOD weapons system programs and (2) the alternative measures program managers take to reduce costs and/or incentivize contractors."
Date:
May 23, 2003
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Export-Import Bank: More Detailed Information about Its Jobs Calculation Methodology Could Improve Transparency
A letter report issued by the Government Accountability Office with an abstract that begins "The U.S. Export-Import Bank's (Ex-Im) methodology to calculate the number of U.S. jobs associated with the exports it helps finance has four key steps. First, Ex-Im determines the industry associated with each transaction it finances. Second, Ex-Im calculates the total value of exports it supports for each industry. Ex-Im implements these first two steps using its own data. Third, Ex-Im multiplies the export value for each industry by the Bureau of Labor Statistics (BLS) ratio of jobs needed to support $1 million in exports in that industry--a figure known as the "jobs ratio." Finally, Ex-Im aggregates across all industries to produce an overall estimate."
Date:
May 23, 2013
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
March 19 Hearing on Sourcing and Acquisition--Questions for the Record
Correspondence issued by the General Accounting Office with an abstract that begins "GAO appeared before the Subcommittee on Readiness and Management Support, House Committee on Armed Services on March 19, 2003, to discuss various sourcing and acquisition issues. This letter responds to a request for our views on the following questions for the record."
Date:
May 23, 2003
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
College Completion: Additional Efforts Could Help Education with Its Completion Goals
A letter report issued by the General Accounting Office with an abstract that begins "Because of concerns that not enough students who start college are completing a bachelor's degree, we examined (1) the extent to which students who enroll in a 4-year college complete a bachelor's degree and identify the factors that affect completion; (2) what states and 4-year colleges and universities are doing to foster bachelor's degree completion; and (3) what the Department of Education (Education) is doing to foster degree completion."
Date:
May 23, 2003
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
U.S. Army Corps of Engineers' Procurement of Pumping Systems for the New Orleans Drainage Canals
Correspondence issued by the Government Accountability Office with an abstract that begins "To avoid flooding in New Orleans after a rain storm, the city's Sewerage and Water Board pumps rainwater from the city into three drainage canals which then flow unrestricted into Lake Pontchartrain. While critical to prevent flooding from rainfall, these canals are vulnerable to storm surge from Lake Pontchartrain during a hurricane, and consequently are lined with floodwalls along both sides to protect storm surge from overtopping the canals and flooding the city. However, during Hurricane Katrina, several breaches occurred in the canal floodwalls allowing significant amounts of water to enter New Orleans from Lake Pontchartrain. In its efforts to restore pre-Katrina levels of hurricane protection to New Orleans by the June 1st start of the 2006 hurricane season, in late 2005, the U.S. Army Corps of Engineers (Corps) considered strengthening the drainage canal floodwalls but decided to postpone this effort due to cost and time constraints. Instead, the Corps decided to install three interim closure structures (gates) at the points where the canals meet the lake. These gates would be closed during major storm events to prevent storm surge from entering the canals and potentially breaching the …
Date:
May 23, 2007
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Defense Infrastructure: Navy's Analysis of Costs and Benefits Regarding Naval Station Mayport Demonstrated Some Best Practices and Minimally Addressed Other Requirements
A letter report issued by the Government Accountability Office with an abstract that begins ""
Date:
May 23, 2013
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Defense Acquisitions: Continued Management Attention Needed to Enhance Use and Review of DOD's Inventory of Contracted Services
A letter report issued by the Government Accountability Office with an abstract that begins "Over the past year and a half, the Department of Defense (DOD) has taken steps to implement its plan to collect contractor manpower data directly from contractors and to develop and implement a department-wide system, based on the Army's existing system, to collect and store these and other inventory data. DOD officials estimate that the data system will be available in fiscal year 2014, with DOD components reporting on most of their service contracts by fiscal year 2016. DOD, however, is still working on key decisions related to security, funding, and other technological issues and has not developed a plan of action with anticipated time frames and necessary resources to help ensure DOD remains on track to meet its goals. Making timely decisions and developing a plan of action with anticipated timeframes and necessary resources, as GAO has previously recommended, would facilitate DOD's stated intent of implementing a DOD-wide system to collect required inventory information. For the fiscal year 2011 inventory, DOD components generally used the same compilation processes used in the previous year. As such, with the exception of the Army, which already has an …
Date:
May 23, 2013
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Medicaid Home and Community-Based Waivers: CMS Should Encourage States to Conduct Mortality Reviews for Individuals with Developmental Disabilities
A letter report issued by the Government Accountability Office with an abstract that begins "Deaths of individuals with developmental disabilities due to poor quality of care have been highlighted in the media. Prior GAO work has raised concerns about inadequate safeguards for such individuals receiving care through state Medicaid home and community-based services (HCBS) waivers. CMS approves and oversees these waivers. Safeguards include the review of, and follow-up action to, critical incidents--events that harm or have the potential to harm waiver beneficiaries. GAO was asked to examine the extent to which states (1) include, as a critical incident, deaths among individuals with developmental disabilities in waiver programs; (2) have basic components in place to review such deaths; and (3) have adopted additional components to review deaths. GAO interviewed state developmental disabilities agency officials and external stakeholders in 14 states, e-mailed a survey to 35 states and D.C., interviewed experts, and reviewed documents."
Date:
May 23, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Military Disability System: Preliminary Observations on Efforts to Improve Performance
Testimony issued by the Government Accountability Office with an abstract that begins "Case processing times under the Integrated Disability Evaluation System (IDES) process have increased over time, and measures of servicemember satisfaction have shortcomings. Each year, average processing time for IDES cases has climbed, reaching 394 and 420 days for active and reserve component members in fiscal year 2011well over established goals of 295 and 305 days, respectively. Also in fiscal year 2011, just 19 percent of active duty servicemembers and 18 percent of guard or reserve members completed the IDES process and received benefits within established goals, down from 32 and 37 percent one year prior. Of the four phases comprising IDES, the medical evaluation board phase increasingly fell short of timeliness goals and, within that phase, the time required for the militarys determination of fitness was especially troubling. During site visits to IDES locations, we consistently heard concerns about timeframes and resources for this phase of the process. With respect to servicemember satisfaction with the IDES process, GAO found shortcomings in how these data are collected and reported, such as unduly limiting who is eligible to receive a survey and computing average satisfaction scores in a manner that …
Date:
May 23, 2012
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library