Resource Type

Language

Configuring the SLC linac for injection into PEP (open access)

Configuring the SLC linac for injection into PEP

From time to time the normal SLC physics program is to be interrupted so that beam can be delivered to PEP. In order that the switch to PEP injection (and the switch back again) can be accomplished quickly and easily, the gun, the damping rings, the linac phase ramp, the energy profile of the linac klystrons for the scavenger bunch, and the entire positron production system are to be kept the same as in the SLC configuration. What mainly remains to be changed is the linac klystron profile for the leading two bunches - those going to PEP. The new klystron profile must be such that it leaves these two beams (1) with final energies that match that of the storage ring and (2) with final energy spectra that fit within the energy aperture of the PEP transfer line. The conditions that need to be met in order to achieve these two goals are discussed in this note. 1 ref., 2 figs.
Date: December 15, 1989
Creator: Bane, K.L.F.
System: The UNT Digital Library
Exploration of the Planets: A History, A Prospect, and Some Issues (open access)

Exploration of the Planets: A History, A Prospect, and Some Issues

This report discusses the history and future of planetary exploration programs by the U.S. and the Soviet Union. Topics covered are motivations for planetary exploration, unmanned missions sent to Mars and Venus by the U.S. and Soviet Union, plans for manned missions to planets such as Mars, technical needs and costs for planetary space missions, and long-term plans and ideas.
Date: December 15, 1969
Creator: Devoe, Barbara M. & Sheldon, Charles S., II
System: The UNT Digital Library
LMFBR safety program. Annual technical progress report. Government fiscal year, 1977 (open access)

LMFBR safety program. Annual technical progress report. Government fiscal year, 1977

Information is presented concerning the development of the SOMIX-1 computer code for sodium drop burning analysis; experimental analysis of burning sodium drops; aerosol leakage from containment buildings; high-temperature-concentration aerosols; aerosol source term from vaporized fuel; properties of high-temperature fuel mixtures; and development of the COMRADEX computer code for analysis of radiological doses in the environment from LMFBR accidents.
Date: December 15, 1977
Creator: unknown
System: The UNT Digital Library
Presupernova evolution of massive stars (open access)

Presupernova evolution of massive stars

Population I stars of 15 M/sub mass/ and 25 M/sub mass/ have been evolved from the zero-age main sequence through iron core collapse utilizing a numerical model that incorporates both implicit hydrodynamics and a detailed treatment of nuclear reactions. The stars end their presupernova evolution as red supergiants with photospheric radii of 3.9 x 10/sup 13/ cm and 6.7 x 10/sup 13/ cm, respectively, and density structures similar to those invoked to explain Type II supernova light curves on a strictly hydrodynamic basis. Both stars are found to form substantially neutronized ''iron'' cores of 1.56 M/sub mass/ and 1.61 M/sub mass/, and central electron abundances of 0.427 and 0.439 moles/g, respectively, during hydrostatic silicon burning. Just prior to collapse, the abundances of the elements in the 25 M/sub mass/ star (excluding the neutronized iron core) have ratios strikingly close to their solar system values over the mass range from oxygen to calcium, while the 15 M/sub mass/ star is characterized by large enhancements of Ne, Mg, and Si. It is pointed out on nucleosynthetic grounds that the mass of the neutronized core must represent a lower limit to the mass of the neutron star or black hole remnant that stars …
Date: December 15, 1977
Creator: Weaver, T. A.; Zimmerman, G. B. & Woosley, S. E.
System: The UNT Digital Library
LIMB Demonstration Project Extension (open access)

LIMB Demonstration Project Extension

The basic goal of the Limestone Injection Multistage Burner (LIMB) demonstration is to extend LIMB technology development to a full- scale application on a representative wall-fired utility boiler. The successful retrofit of LIMB to an existing boiler is expected to demonstrate that (a) reductions of 50 percent or greater in SO{sub x} and NO{sub x} emissions can be achieved at a fraction of the cost of add-on FGD systems, (b) boiler reliability, operability, and steam production can be maintained at levels existing prior to LIMB retrofit, and (c) technical difficulties attributable to LIMB operation, such as additional slagging and fouling, changes in ash disposal requirements, and an increased particulate load, can be resolved in a cost-effective manner. The primary fuel to be used will be an Ohio bituminous coal having a nominal sulfur content of 3 percent or greater.
Date: December 15, 1988
Creator: unknown
System: The UNT Digital Library
Attempt to compare two arc orbit correction schemes analytically (open access)

Attempt to compare two arc orbit correction schemes analytically

Consider a transport line that consists of periodic cells. Let the beam position monitors and the orbit correctors be located with the same period as the cells and let the BPM's and the corrector distributions interlace each other. The arrangement does not always provide a stable orbit correction. The criterion for stability has been derived by Joe Murray and is reproduced. We calculate the rms orbit, the effect of BPM errors and the rms corrector strength in such correction schemes, yielding analytic formulae for these quantities. We then apply these formulae to the SLC arcs.
Date: December 15, 1983
Creator: Chao, A. & Weng, W.
System: The UNT Digital Library
Energy and protein production from pulp mill wastes. Progress report, September 15, 1977--December 15, 1977 (open access)

Energy and protein production from pulp mill wastes. Progress report, September 15, 1977--December 15, 1977

Effort during the past quarter was directed at two specific objectives. First, the conversion of the protein production experiments from batch to continuous operation and, second, the identification of growth stimulants to increase methane yield. Early in the project, yeast production ranging from 0.5 to 5.0 grams of dry yeast per liter had been obtained in batch cultures. Highest yields were consistently attained on SSL (spent sulfite liquor) which had been ozonated for only 10 minutes. Continuous fermentation studies using three hour ozonated SSL confirmed the characteristic yields demonstrated in previous batch tests. Contamination, which occurred at residence times less than two days, appeared to decrease protein production rate and yield. Vitamins and minerals, fatty acids, and low molecular weight alcohols were investigated as possible stimulants for methane production. Only the combination of alcohol plus vitamins and minerals seemed to be effective. Stimulated production failed to achieve the 25 ml per hour rate that had randomly been exceeded many times over the past six months. Additional culture studies are planned to examine the possibility that the mixed culture, now present in the anaerobic fermenters, has degenerated slowly over the past year.
Date: December 15, 1977
Creator: Jurgensen, M. F. & Patton, J. T.
System: The UNT Digital Library
The limnology of L Lake: Results of the L-Lake monitoring program, 1986--1989 (open access)

The limnology of L Lake: Results of the L-Lake monitoring program, 1986--1989

L Lake was constructed in 1985 on the upper regions of Steel Creek, SRS to mitigate the heated effluents from L Reactor. In addition to the NPDES permit specifications (Outfall L-007) for the L-Reactor outfall, DOE-SR executed an agreement with the South Carolina Department of Health and Environmental Control (SCDHEC), that thermal effluents from L-Reactor will not substantially alter ecosystem components in the approximate lower half of L Lake. This region should be inhabited by Balanced (Indigenous) Biological Communities (BBCs) in accordance with Section 316(a) of the Pollution Control (Clean Water) Act (Public Law 92-500). In response to this requirement the Environmental Sciences Section/Ecology Group initiated a comprehensive biomonitoring program which documented the development of BBCs in L Lake from January 1986 through December 1989. This report summarizes the principal results of the program with regards to BBC compliance issues and community succession in L Lake. The results are divided into six sections: water quality, macronutrients, and phytoplankton, aquatic macrophytes, zooplankton, benthic macroinvertebrates, fish, and community succession. One of the prime goals of the program was to detect potential reactor impacts on L Lake.
Date: December 15, 1991
Creator: Bowers, J.A.
System: The UNT Digital Library
SHUTDOWN COOLING TEST. Pathfinder Atomic Power Plant Summary Report (open access)

SHUTDOWN COOLING TEST. Pathfinder Atomic Power Plant Summary Report

Tests are performed on Pathfinder superheat fuel element mockups, under reactor conditions of 600 psig, in order to determine the parameters influencing heat transfer from the fuel elements to the moderating water under shutdown conditions. The peak temperatures reached by the superheat elements are also found as functions of the heat generation rate. A mathematical model of the heat transfer system is developed. (T.F.H.)
Date: December 15, 1961
Creator: Littleton, W.E. & Ross, W.
System: The UNT Digital Library
Isotopic HCl transfer laser (open access)

Isotopic HCl transfer laser

An HCl laser which uses isotopic V-V energy transfer collisions as a pumping mechanism has been demonstrated. This multiline laser, which utilized an intracavity cold gas isotope filter, increased the energy from the P/sub 1/ lines of H/sup 37/Cl while decreasng the energies of the P/sub 1/ and P/sub 2/ lines of H/sup 35/Cl. Previously unreported lines, including emission from R branch transitions, have also been observed from single-line HCl and HBr lasers.
Date: December 15, 1977
Creator: Badcock, C.C.; Hwang, W.C.; Kalsch, J.F. & Kamada, R.F.
System: The UNT Digital Library
Arlington National Cemetery: Additional Actions Needed to Continue Improvements in Contract Management (open access)

Arlington National Cemetery: Additional Actions Needed to Continue Improvements in Contract Management

A letter report issued by the Government Accountability Office with an abstract that begins "What GAO Found"
Date: December 15, 2011
Creator: United States. Government Accountability Office.
System: The UNT Digital Library
Tax Gap: Actions Needed to Address Noncompliance with S Corporation Tax Rules (open access)

Tax Gap: Actions Needed to Address Noncompliance with S Corporation Tax Rules

A letter report issued by the Government Accountability Office with an abstract that begins "S corporations are one of the fastest growing business types, accounting for nearly 4 million businesses in 2006. However, long-standing problems with S corporation compliance produce revenue losses in individual income taxes and employment taxes. GAO was asked to (1) describe the reasons businesses choose to become S corporations, (2) analyze types of S corporation noncompliance, what IRS has done to address noncompliance, and options to improve compliance, and (3) further analyze the extent of shareholder compensation noncompliance and identify options for improving compliance. GAO analyzed IRS research and examination data; interviewed IRS officials, examiners and other knowledgeable stakeholders; and reviewed relevant literature."
Date: December 15, 2009
Creator: United States. Government Accountability Office.
System: The UNT Digital Library
Large Truck Safety: Federal Enforcement Efforts Have Been Stronger Since 2000, but Oversight of State Grants Needs Improvement (open access)

Large Truck Safety: Federal Enforcement Efforts Have Been Stronger Since 2000, but Oversight of State Grants Needs Improvement

A letter report issued by the Government Accountability Office with an abstract that begins "About 5,000 people die and more than 120,000 are injured each year from crashes involving large trucks. The Federal Motor Carrier Safety Administration (FMCSA) has several enforcement programs to improve truck safety and funds similar enforcement programs in states through its Motor Carrier Safety Assistance Program (MCSAP). Following concern by Congress and others in 1999 that FMCSA's enforcement approach was ineffective, the agency committed to take stronger actions. This study reports on how FMCSA's enforcement approach has changed, how it makes decisions about its enforcement approach, and how it ensures that its grants to states contribute to the agency's mission of saving lives."
Date: December 15, 2005
Creator: United States. Government Accountability Office.
System: The UNT Digital Library
Medicare Advantage: Characteristics, Financial Risks, and Disenrollment Rates of Beneficiaries in Private Fee-for-Service Plans (open access)

Medicare Advantage: Characteristics, Financial Risks, and Disenrollment Rates of Beneficiaries in Private Fee-for-Service Plans

A letter report issued by the Government Accountability Office with an abstract that begins "Medicare Advantage (MA) plans are an alternative to the original Medicare fee-for-service (FFS) program. Private fee-for-service (PFFS) plans--one type of MA plan--give beneficiaries an option that is more like Medicare FFS than other MA plans, with a wider choice of providers and less plan management of services and providers. PFFS enrollment increased from about 35,000 beneficiaries in June 2004 to about 2.3 million in June 2008. This report compares PFFS plans to other MA plans and Medicare FFS in three areas: (1) characteristics of beneficiaries, (2) financial risks for beneficiaries who do not contact their plans before receiving services, and (3) disenrollment rates. To do this work, GAO reviewed materials from a selected sample of nine PFFS plan sponsors, analyzed Medicare data, and interviewed officials from CMS, which administers the Medicare program, and other organizations."
Date: December 15, 2008
Creator: United States. Government Accountability Office.
System: The UNT Digital Library
Information Technology: Status and Challenges of Employee Exchange Program (open access)

Information Technology: Status and Challenges of Employee Exchange Program

A letter report issued by the Government Accountability Office with an abstract that begins "Recognizing the importance of human capital to information technology (IT) and the need to improve the skills of federal IT workers, Congress created the Information Technology Exchange Program (ITEP) as part of the E-Government Act of 2002. ITEP aims to improve federal IT skills through exchanges of staff between the government and the private sector. The Office of Personnel Management (OPM) was required to issue implementing regulations, which it did in September 2005, and to report semiannually to the Congress. OPM's regulations require that each participating agency develop an ITEP plan before proceeding with exchanges. Agencies' opportunity to begin exchanges ends in December 2007. GAO is required to evaluate the program by December 2006. As agreed, GAO's objectives were to determine (1) the status of the program and (2) challenges facing agencies. To address these objectives, GAO analyzed key documents and interviewed OPM, participating agencies, and others."
Date: December 15, 2006
Creator: United States. Government Accountability Office.
System: The UNT Digital Library
Compacts of Free Association: Micronesia and the Marshall Islands Face Challenges in Planning for Sustainability, Measuring Progress, and Ensuring Accountability (open access)

Compacts of Free Association: Micronesia and the Marshall Islands Face Challenges in Planning for Sustainability, Measuring Progress, and Ensuring Accountability

A letter report issued by the Government Accountability Office with an abstract that begins "In 2003, the United States signed Compacts of Free Association with the Federated States of Micronesia (FSM) and the Republic of the Marshall Islands (RMI), amending a 1986 compact with the countries. The amended compacts provide the countries with a combined total of $3.6 billion from 2004 to 2023, with the annual grants declining gradually. The assistance, targeting six sectors, is aimed at assisting the countries' efforts to promote economic advancement and budgetary self-reliance. The Department of the Interior (Interior) administers and oversees the assistance. Complying with a legislative requirement, GAO examined, for fiscal years 2004 through 2006, (1) the FSM's and the RMI's use of compact funds, (2) their efforts to assess progress toward development goals, (3) their monitoring of sector grants and accountability for compact funds, and (4) Interior's administrative oversight of the assistance. GAO visited the FSM and the RMI; reviewed reports; and interviewed officials from the FSM, RMI, and U.S. governments."
Date: December 15, 2006
Creator: United States. Government Accountability Office.
System: The UNT Digital Library
Hospital Accreditation: Joint Commission on Accreditation of Healthcare Organizations' Relationship with Its Affiliate (open access)

Hospital Accreditation: Joint Commission on Accreditation of Healthcare Organizations' Relationship with Its Affiliate

A letter report issued by the Government Accountability Office with an abstract that begins "Hospitals must meet certain conditions of participation established by the Centers for Medicare & Medicaid Services (CMS) in order to receive Medicare payments. In 2003, most hospitals--over 80 percent--demonstrated compliance with most of these conditions through accreditation from the Joint Commission on Accreditation of Healthcare Organizations (Joint Commission). Established in 1986, Joint Commission Resources, Inc. (JCR), a nonprofit affiliate of the Joint Commission, provides consultative technical assistance services to hospitals. Both organizations acknowledge the need to ensure that JCR's services do not--and are not perceived to--affect the independence of the Joint Commission's accreditation process. GAO was asked to provide information on the relationship between the Joint Commission and JCR. This report describes (1) their organizational relationship, and (2) the significant steps they have taken to prevent the improper sharing of information, obtained through their accreditation and consulting activities, respectively, since JCR was established. GAO reviewed pertinent documents, including conflict-of-interest policies and information about the organizations' financial relationship, and interviewed staff and board members from both organizations, JCR clients, and CMS officials."
Date: December 15, 2006
Creator: United States. Government Accountability Office.
System: The UNT Digital Library
Natural Gas and Electricity Markets: Federal Government Actions to Improve Private Price Indices and Stakeholder Reaction (open access)

Natural Gas and Electricity Markets: Federal Government Actions to Improve Private Price Indices and Stakeholder Reaction

A letter report issued by the Government Accountability Office with an abstract that begins "Since the 1970s, the natural gas and electricity industries have each undergone a shift toward greater competition, referred to as restructuring. This restructuring has moved these industries from regulated monopolies to markets in which competitors vie for market share and wholesale prices are largely determined by supply and demand. Amid this restructuring, private companies have published information about these markets, including reports of market prices in various locations--referred to as price indices. These indices, whether for short-term "spot" or long-term "forward" markets, are developed by surveying selected market participants who voluntarily supply price information. Market participants rely on these price indices to help them make informed decisions about trading these commodities and to evaluate new investments. In recent years, confidence in price indices has been shaken due to misreporting and other abuses. During the energy crisis in the West in 2000-2001, several market participants were found to have purposefully misreported prices in order to manipulate these indices for financial gain. In this context, GAO agreed to answer the following questions: (1) What federal regulatory and statutory efforts have been taken to improve price indices in electricity …
Date: December 15, 2005
Creator: United States. Government Accountability Office.
System: The UNT Digital Library
Recovery Act: Head Start Grantees Expand Services, but More Consistent Communication Could Improve Accountability and Decisions about Spending (open access)

Recovery Act: Head Start Grantees Expand Services, but More Consistent Communication Could Improve Accountability and Decisions about Spending

A letter report issued by the Government Accountability Office with an abstract that begins "This report responds to two mandates for GAO under the American Recovery and Reinvestment Act of 2009 (Recovery Act). First, it is the latest report on the uses of and accountability for Recovery Act funds in selected states and localities. Second, it comments on recipients' reports of the jobs created and retained. The Recovery Act provided $2.1 billion for Head Start and Early Head Start, primarily to expand services. GAO addressed four questions: (1) How have Head Start and Early Head Start grantees used Recovery Act funds, including for expanding enrollment? (2) What challenges have grantees encountered in spending Recovery Act funds? (3) How has the Office of Head Start (OHS) monitored the use of Recovery Act funds? (4) How has the quality of jobs data reported by Recovery Act recipients, particularly Head Start grantees, changed over time? In this report, GAO also updates the status of open recommendations from previous bimonthly and recipient reporting reviews. To address these questions, GAO interviewed grantees, analyzed federal agency and recipient reported data, and interviewed officials."
Date: December 15, 2010
Creator: United States. Government Accountability Office.
System: The UNT Digital Library
Crime Victims' Rights Act: Increasing Awareness, Modifying the Complaint Process, and Enhancing Compliance Monitoring Will Improve Implementation of the Act (open access)

Crime Victims' Rights Act: Increasing Awareness, Modifying the Complaint Process, and Enhancing Compliance Monitoring Will Improve Implementation of the Act

A letter report issued by the Government Accountability Office with an abstract that begins "On October 30, 2004, the Crime Victims' Rights Act (CVRA) was enacted, establishing eight rights for federal crime victims and two mechanisms to enforce those rights. The legislation also directed GAO to evaluate the implementation of the CVRA. To address this mandate, GAO reviewed: (1) efforts made to implement the CVRA, (2) mechanisms in place to ensure adherence to the CVRA, (3) methods the Department of Justice (DOJ) uses to monitor performance regarding the provision of CVRA rights, and (4) key issues that have arisen in the interpretation of the CVRA by the federal courts. To conduct its analysis, GAO reviewed guidance materials, victim complaints, and court rulings, and conducted surveys and interviews with criminal justice system participants. GAO cannot generalize its crime victim survey results due to a low response rate."
Date: December 15, 2008
Creator: United States. Government Accountability Office.
System: The UNT Digital Library
Statewide Transportation Planning: Opportunities Exist to Transition to Performance-Based Planning and Federal Oversight (open access)

Statewide Transportation Planning: Opportunities Exist to Transition to Performance-Based Planning and Federal Oversight

A letter report issued by the Government Accountability Office with an abstract that begins "Through the statewide transportation planning process, states decide how to spend federal transportation funds--almost $46 billion in fiscal year 2009. Draft legislation to reauthorize federal surface transportation legislation would, among other things, revise planning requirements to recognize states' use of rural planning organizations (RPO) and require performance measurement. As requested, GAO examined (1) states' planning activities and RPOs' satisfaction that rural needs are considered, (2) states' planning challenges, (3) the U.S. Department of Transportation's (USDOT) approach to overseeing statewide planning, and (4) states' use of performance measurement and opportunities to make statewide planning more performance based. GAO analyzed planning documents; surveyed departments of transportation in 50 states, Puerto Rico, and Washington, D.C., and 569 RPOs; interviewed officials in 6 states; and held an expert panel on performance-based planning."
Date: December 15, 2010
Creator: United States. Government Accountability Office.
System: The UNT Digital Library
Medicare and Medicaid Coverage: Therapies and Supplies for Inflammatory Bowel Disease (open access)

Medicare and Medicaid Coverage: Therapies and Supplies for Inflammatory Bowel Disease

A letter report issued by the Government Accountability Office with an abstract that begins "Inflammatory bowel disease (IBD) affects an estimated one million Americans. IBD patients often have difficulty digesting food. As a result, they may require parenteral nutrition (intravenous feeding) or enteral nutrition (tube feeding), medically necessary food products to supplement their diets, and medications. In addition, some IBD patients must care for their ostomies--surgically created openings for the discharge of digested food. IBD advocates have recently expressed concerns regarding the ability of IBD patients to obtain the health care they need. The Research Review Act of 2004 directed GAO to study the Medicare and Medicaid coverage standards for individuals with IBD, in both home health and outpatient delivery settings. GAO (1) identified the Medicare and Medicaid coverage standards for five key therapies used for the treatment of IBD and (2) determined what specific supplies used in these therapies Medicare and Medicaid programs will pay for. In this work, GAO examined Medicare's national and local coverage policies and conducted a survey of Medicaid programs in the 50 states and the District of Columbia."
Date: December 15, 2005
Creator: United States. Government Accountability Office.
System: The UNT Digital Library
National Aeronautics and Space Administration: Acquisition Approach for Commercial Crew Transportation Includes Good Practices, but Faces Significant Challenges (open access)

National Aeronautics and Space Administration: Acquisition Approach for Commercial Crew Transportation Includes Good Practices, but Faces Significant Challenges

A letter report issued by the Government Accountability Office with an abstract that begins ""
Date: December 15, 2011
Creator: United States. Government Accountability Office.
System: The UNT Digital Library
DOD Systems Modernization: Uncertain Joint Use and Marginal Expected Value of Military Asset Deployment System Warrant Reassessment of Planned Investment (open access)

DOD Systems Modernization: Uncertain Joint Use and Marginal Expected Value of Military Asset Deployment System Warrant Reassessment of Planned Investment

A letter report issued by the Government Accountability Office with an abstract that begins "Because of the importance of the Department of Defense's (DOD) adherence to disciplined information technology (IT) acquisition processes in successfully modernizing its business systems, GAO was asked to determine whether the Transportation Coordinators' Automated Information for Movements System II (TC-AIMS II) program is being managed according to important aspects of DOD's acquisition policies and guidance, as well as other relevant acquisition management best practices. TC-AIMS II was initiated in 1995 as a joint services system to help manage force and equipment movements within the United States and abroad. The U.S. Department of the Army has the lead responsibility for managing the system's acquisition and estimates its life-cycle cost to be $1.7 billion over 25 years."
Date: December 15, 2005
Creator: United States. Government Accountability Office.
System: The UNT Digital Library