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Office of Scientific & Technical Information Technical Reports
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111
Defense Base Closure and Realignment Commission
73
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42
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39
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35
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Recent US target-physics-related research in heavy-ion inertial fusion: simulations for tamped targets and for disk experiments in accelerator test facilities
Within the last few years, there have also appeared in the Heavy-Ion Fusion literature several studies of targets which have outer tampers. One-dimensional simulations indicate higher target gains with a judicious amount of tamping. But for these targets, a full investigation has not been carried through in regards to conservative criteria for fluid instabilities as well as reasonable imperfections in target fabrication and illumination symmetry which all affect target ignition and burn. Comparisons of these results with the gain survey of Part I would have to be performed with care. These calculations suggest that experiments relating to high temperature disk heating, as well as beam deposition, focusing and transport can be performed within the context of current design proposals for accelerator test-facilities. Since the test-facilities have lower ion kinetic energy and beam pulse power as compared to reactor drivers, we achieve high-beam intensities at the focal spot by using short focal distance and properly designed beam optics.
Date:
June 24, 1982
Creator:
Mark, J.W.K.
Object Type:
Article
System:
The UNT Digital Library
Control of pyrite surface chemistry in physical coal cleaning
The successful separation of pyrite from coal by flotation is dependent to a large extent upon the selectivity of the process, and the use of a pyrite depressant is one of the most important and cost-effective techniques for achieving this. This report evaluates the effects of three factors on the floatability of pyrite. These are (1) the superficial oxidation of pyrite, (2) the contamination of pyrite surfaces by carbonaceous matter, and (3) pulp redox potentials. XPS (x-ray photoelectron spectroscopy) and IR spectrometry have been used to identify surface reaction products. Microflotation, laboratory-scale conventional flotation and microbubble column flotation were used to quantify the effects of these factors. It was found that low (reducing) pulp potentials are effective depressants of pyrite (more so for fresh, unoxidized samples than for oxidized samples), whilst at the same time do not materially affect coal flotation.
Date:
June 24, 1992
Creator:
Luttrell, G. H.; Yoon, R. H. & Ou, Z. S.
Object Type:
Report
System:
The UNT Digital Library
Control of pyrite surface chemistry in physical coal cleaning
To better understand the surface chemical properties of coal and mineral pyrite, studies on the effect of flotation surfactants (frother and kerosene) on the degree of hydrophobicity have been conducted. The presence of either frother or kerosene enhanced the flotability of coal and mineral pyrite with a corresponding decrease in induction time over the pH range examined. Scanning electron microscopy (SEM) results indicate a correlation exists between the sample surface morphology and crystal structure and the observed hydrophobicity. As a result of the data obtained from the surface characterization studies, controlled surface oxidation was investigated as a possible pyrite rejection scheme in microbubble column flotation.
Date:
June 24, 1992
Creator:
Luttrell, G. H.; Yoon, R. H.; Zachwieja, J. & Lagno, M.
Object Type:
Report
System:
The UNT Digital Library
Master oscillator stability requirements considerations
This note attempts to point out some ideas about the required stability of the 476 MHz master oscillator, assuming that the phase noise of the oscillator is the only source of noise in the accelerator system.
Date:
June 24, 1986
Creator:
Schwarz, H. & Vancraeynest, J.
Object Type:
Report
System:
The UNT Digital Library
Early history of computer simulations in statistical mechanics
A history of the early use of the Monte Carlo method is presented.
Date:
June 24, 1985
Creator:
Wood, W.W.
Object Type:
Article
System:
The UNT Digital Library
Control of pyrite surface chemistry in physical coal cleaning
One of the most difficult separations in minerals processing involves the differential flotation of pyrite and coal. Under practical flotation conditions, they are both hydrophobic and no cost-effective method has been developed to efficiently reject the pyrite. The problem arises from inherent floatability of coal and pyrite. Coal is naturally hydrophobic and remains so under practical flotation. Although pyrite is believed to be naturally hydrophilic under practical flotation conditions it undergoes a relatively rapid incipient oxidation reaction that causes self-induced'' flotation. The oxidation product responsible for self-induced'' flotation is believed to be a metal polysulfide, excess sulfur in the lattice, or in some cases elemental sulfur. It is believed that if incipient oxidation of pyrite could be prevented, good pyrite rejection could be obtained. In order to gain a better understanding of how pyrite oxidizes, a new method of preparing fresh, unoxidized pyrite surfaces and a new method of studying pyrite oxidation have been developed this reporting period.
Date:
June 24, 1992
Creator:
Yoon, R. H. & Richardson, P. R.
Object Type:
Report
System:
The UNT Digital Library
Criminal Prohibitions on the Publication of Classified Defense Information
This report discusses the statutory prohibitions that may be implicated, including the Espionage Act; the extraterritorial application of such statutes; and the First Amendment implications related to such prosecutions against domestic or foreign media organizations and associated individuals. The report provides a summary of previous legislative efforts to criminalize the unauthorized disclosure of classified information.
Date:
June 24, 2013
Creator:
Elsea, Jennifer K.
Object Type:
Report
System:
The UNT Digital Library
[Memorandum of Meeting: Naval Air Station Willow Grove, Pennsylvania, June 24, 2005, Part 1]
First part of memorandum of meeting with the Horsham-Willow Grove Chamber of Commerce and community representatives regarding the Naval Air Station Willow Grove, PA, including business cards of the attendees.
Date:
June 24, 2005
Creator:
United States. Defense Base Closure and Realignment Commission.
Object Type:
Text
System:
The UNT Digital Library
Coast Guard: Observations on the Genesis and Progress of the Service's Modernization Program
Correspondence issued by the Government Accountability Office with an abstract that begins "The U.S. Coast Guard is currently undertaking a major effort to update its command structure, support systems, and business practices. This effort, referred to as the modernization program, is intended to better position the service to fulfill not only traditional missions--such as ensuring the safety and security of commercial shipping, safeguarding U.S. fisheries, interdicting the smuggling of illicit drugs, and conducting search and rescue operations--but also homeland security responsibilities that expanded after September 11, 2001 (9/11). The modernization program is specifically focused on modifying the Coast Guard's command and control structure--including the establishment of four new organizational entities--as well as updating mission support systems, such as maintenance, logistics, financial management, human resources, acquisitions, and information technology. The proposed changes will have a major impact on a variety of functions servicewide, including management of Deepwater--the long-term, multibillion-dollar program to upgrade the Coast Guard's aging fleet of water vessels and aircraft. The conceptual framework for the modernization program is reflected in 10 Commandant Intent Action Orders, which were issued by the Commandant of the Coast Guard in 2006. Subsequently, congressional direction accompanying the Coast Guard's fiscal year 2008 appropriations required …
Date:
June 24, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Defense Space Activities: Continuation of Evolved Expendable Launch Vehicle Program's Progress to Date Subject to Some Uncertainty
Correspondence issued by the General Accounting Office with an abstract that begins "The U.S. space policy states that access to and use of space is critical to preserving peace and protecting U.S. national security and also benefits the country's civil and commercial interests. Air Force guidance explains further that access to space requires the ability to launch critical space assets, when needed, by a mix of space launch systems from standard launch pads at major support facilities. This is to ensure that a launch failure or other catastrophic event does not prevent mission success. These critical space assets, or satellites, are used for a wide range of government activities such as communications, navigation, and ballistic missile warning. The Evolved Expendable Launch Vehicle (EELV) program, consisting of both Atlas V and Delta IV launch vehicles, was established as the strategic launch system to meet the nation's critical space mission needs and correspond with U.S. policy that requires U.S. government satellites to be launched on U.S. manufactured launch vehicles. Specifically, the EELV program's overarching objective called for the development of a national expendable launch capability for assured access to space that would reduce the overall recurring cost of launch by at least …
Date:
June 24, 2004
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Tax Administration: EEO Issues in IRS' Midwest District Office
Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on equal employment opportunity (EEO) issues in the Internal Revenue Service's (IRS) Midwest District Office."
Date:
June 24, 1999
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Information Technology: Training Can Be Enhanced by Greater Use of Leading Practices
A letter report issued by the General Accounting Office with an abstract that begins "Effective training of information technology (IT) staff, as called for in the E-Government (E-Gov) Act of 2002, is essential to developing and retaining a qualified workforce. In an earlier report (GAO-03-390), we identified 22 leading practices, grouped into 5 key training management processes, used by private-sector companies to implement effective IT training. These practices suggest approaches that government agencies could consider. To assess IT training in the federal government, including its use of leading practices, we were asked to determine, among other things, to what extent federal agencies use our leading practices, the major obstacles in providing effective IT training and how agencies address them, and the progress the Office of Personnel Management (OPM) is making in issuing policies and performing evaluations to encourage agencies to provide effective IT training."
Date:
June 24, 2004
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Combating Terrorism: U.S. Oversight of Pakistan Reimbursement Claims for Coalition Support Funds
Testimony issued by the Government Accountability Office with an abstract that begins "The United States has reimbursed Pakistan, a key ally in the global war on terror, about $5.56 billion in Coalition Support Funds (CSF) for its efforts to combat terrorism along its border with Afghanistan. The Department of Defense (Defense) provides CSF for costs incurred in direct support of U.S. military operations. Pakistan is the largest recipient of CSF, receiving 81 percent of CSF reimbursements. This testimony focuses on (1) the extent to which Defense has consistently applied its guidance to validate the reimbursements claimed by Pakistan and (2) how the Office of the Defense Representative to Pakistan's (ODRP) role has changed over time. This statement is based on a concurrently issued GAO report titled Combating Terrorism: Increased Oversight and Accountability Needed over Pakistan Reimbursement Claims for Coalition Support Funds, GAO-08-806 (Washington, D.C.: June 24, 2008)."
Date:
June 24, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Homeland Security: Coordinated Planning and Standards Needed to Better Manage First Responder Grants in the National Capital Region
Testimony issued by the General Accounting Office with an abstract that begins "Since the tragic events of September 11, 2001, the National Capital Region (NCR), comprising jurisdictions including the District of Columbia and surrounding jurisdictions in Maryland and Virginia, has been recognized as a significant potential target for terrorism. GAO was asked to report on (1) what federal funds have been allocated to NCR jurisdictions for emergency preparedness; (2) what challenges exist within NCR to organizing and implementing efficient and effective regional preparedness programs; (3) what gaps, if any, remain in the emergency preparedness of NCR; and (4) what has been the role of the Department of Homeland Security (DHS) in NCR to date."
Date:
June 24, 2004
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Management Report: Improvements Are Needed to Enhance IRS's Internal Controls and Operating Effectiveness
Correspondence issued by the Government Accountability Office with an abstract that begins "In November 2008, we issued our report on the results of our audit of the Internal Revenue Service's (IRS) financial statements as of, and for the fiscal years ending, September 30, 2008, and 2007, and on the effectiveness of its internal controls as of September 30, 2008. We also reported our conclusions on IRS's compliance with significant provisions of selected laws and regulations and on whether IRS's financial management systems substantially comply with the requirements of the Federal Financial Management Improvement Act of 1996 (FFMIA). Additionally, in January 2009, we issued a report on information security issues identified during our fiscal year 2008 audit, along with associated recommendations. The purpose of this report is to discuss issues identified during our audit of IRS's financial statements as of, and for the fiscal year ending, September 30, 2008, regarding internal controls that could be improved for which we currently do not have a specific recommendation outstanding. Although not all of these issues were discussed in our report on the results of our fiscal year 2008 financial statement audit, they all warrant IRS management's attention."
Date:
June 24, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Medicare: Action Needed to Address Higher Use of Anatomic Pathology Services by Providers Who Self-Refer
A letter report issued by the Government Accountability Office with an abstract that begins "Self-referred anatomic pathology services increased at a faster rate than non-self-referred services from 2004 to 2010. During this period, the number of self-referred anatomic pathology services more than doubled, growing from 1.06 million services to about 2.26 million services, while non-self-referred services grew about 38 percent, from about 5.64 million services to about 7.77 million services. Similarly, the growth rate of expenditures for self-referred anatomic pathology services was higher than for non-self-referred services. Three provider specialties--dermatology, gastroenterology, and urology--accounted for 90 percent of referrals for self-referred anatomic pathology services in 2010."
Date:
June 24, 2013
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Medicare Advantage Organizations: Actual Expenses and Profits Compared to Projections for 2005
Correspondence issued by the Government Accountability Office with an abstract that begins "Medicare Advantage (MA) organizations offer an alternative to the original Medicare fee-for-service (FFS) program. Payments to MA organizations are, in part, based on the revenue and expenditure projections MA organizations submit to the Centers for Medicare & Medicaid Services (CMS)--the agency that administers Medicare--prior to the start of each contract year. Once Medicare payments are determined, they are not modified based on differences between actual and projected expenses. In February 2008, we reported that, on average, MA organizations projected they would spend approximately 87 percent of their 2007 revenue on medical expenses, 9 percent on non-medical expenses, and that the remaining 4 percent would go to profits. The accuracy of MA organizations' projections is important because, in addition to determining Medicare payments, these projections also affect the extent to which MA beneficiaries receive additional benefits not provided under FFS and the amounts beneficiaries pay in cost sharing and premiums. This report responds to a Congressional request for additional information on the accuracy of MA organizations' projections. Specifically, this report focuses on how organizations' 2005 actual medical expenses, non-medical expenses, and profits compare to projections for the same year. …
Date:
June 24, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Combating Terrorism: Increased Oversight and Accountability Needed over Pakistan Reimbursement Claims for Coalition Support Funds
A letter report issued by the Government Accountability Office with an abstract that begins "The United States has reimbursed Pakistan, a key ally in the global war on terror, about $5.56 billion in Coalition Support Funds (CSF) for its efforts to combat terrorism along its border with Afghanistan. The Department of Defense (Defense) provides CSF to 27 coalition partners for costs incurred in direct support of U.S. military operations. Pakistan is the largest recipient of CSF, receiving 81 percent of CSF reimbursements as of May 2008. This report focuses on (1) the extent to which Defense has consistently applied its guidance to validate the reimbursements claimed by Pakistan and (2) how the Office of the Defense Representative to Pakistan's (ODRP) role has changed over time. To address these objectives, GAO reviewed CSF oversight procedures, examined CSF documents, and interviewed Defense officials in Washington, D.C., U.S. Central Command in Florida, and Pakistan."
Date:
June 24, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Aviation Safety: Better Data and Targeted FAA Efforts Needed to Identify and Address Safety Issues of Small Air Cargo Carriers
A letter report issued by the Government Accountability Office with an abstract that begins "The air cargo industry contributed over $37 billion to the U.S. economy in 2008 and provides government, businesses, and individuals with quick delivery of goods. Although part of an aviation system with an extraordinary safety record, there have been over 400 air cargo accidents and over 900 incidents since 1997, raising concerns about cargo safety. GAO's congressionally requested study addresses (1) recent trends in air cargo safety, (2) factors that have contributed to air cargo accidents, (3) federal government and industry efforts to improve air cargo safety and experts' views on the effectiveness of these efforts, and (4) experts' views on further improving air cargo safety. To perform the study, GAO analyzed agency data, surveyed a panel of experts, reviewed industry and government documents, and interviewed industry and government officials. GAO also conducted site visits to Alaska, Ohio, and Texas."
Date:
June 24, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Contract Management: Minimal Compliance with New Safeguards for Time-and-Materials Contracts for Commercial Services and Safeguards Have Not Been Applied to GSA Schedules Program
A letter report issued by the Government Accountability Office with an abstract that begins "Federal agencies have used time-and-materials (T&M) contracts to purchase billions of dollars in services. These contracts are risky because the government bears the risk of cost overruns. Effective February 2007, the Federal Acquisition Regulation (FAR) was revised, pursuant to a statutory change, to allow T&M contracts to be used to acquire commercial services under FAR Part 12, which uses a streamlined procurement process. Certain safeguards were included in FAR Part 12, including a requirement that contracting officers prepare a detailed determination and findings (D&F) that no other contract type is suitable. Based on a mandate to review the use of T&M contracts for commercial services, we assessed (1) agencies' reported use of such contracts and what they acquired, (2) the degree to which agencies complied with the new safeguards, and (3) the applicability of the safeguards to General Services Administration (GSA) schedule contracts. GAO reviewed contracts and orders at DOD and civilian agencies and spoke with contracting officials."
Date:
June 24, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Defense Infrastructure: Army Needs to Improve Its Facility Planning Systems to Better Support Installations Experiencing Significant Growth
A letter report issued by the Government Accountability Office with an abstract that begins "The Army is concurrently implementing several major force structure and basing initiatives, including Base Realignment and Closure, Grow the Force, and Army Modularity. The resulting large increase in personnel associated with these initiatives at many installations has required and will continue to require significant facility planning and construction to meet needs. GAO was asked to (1) describe the Army's investment in domestic facilities to meet the needs associated with the initiatives; (2) determine the extent to which the Army's facility planning systems are complete, current, and accurate; and (3) assess whether stationing information has been provided to installations far enough in advance to permit facility planning and acquisition to accommodate arriving personnel. To address these objectives, GAO reviewed relevant documentation; analyzed budget documents, information from Army planning systems, and facility criteria standards; visited installations; and interviewed relevant officials."
Date:
June 24, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Transportation Security: Key Actions Have Been Taken to Enhance Mass Transit and Passenger Rail Security, but Opportunities Exist to Strengthen Federal Strategy and Programs
A letter report issued by the Government Accountability Office with an abstract that begins "Terrorist incidents worldwide have highlighted the need for securing mass transit and passenger rail systems. The Department of Homeland Security's (DHS) Transportation Security Administration (TSA) is the primary federal entity responsible for securing these systems. GAO was asked to assess (1) the extent to which federal and industry stakeholders have assessed risks to these systems since 2004, and how TSA has used this information to inform its security strategy; (2) key actions federal and industry stakeholders have taken since 2004 and the extent to which federal actions are consistent with TSA's security strategy, and the challenges TSA faces in implementing them; and (3) TSA's reported status in implementing 9/11 Commission Act provisions for mass transit and passenger rail security. GAO reviewed documents including TSA's mass transit and passenger rail strategic plan, and interviewed federal officials and industry stakeholders from 30 systems and Amtrak--representing 75 percent of U.S. mass transit and passenger rail ridership."
Date:
June 24, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Homeland Security: Actions Needed to Better Protect National Icons and Federal Office Buildings from Terrorism
A letter report issued by the Government Accountability Office with an abstract that begins "The threat of terrorism has made physical security for federal real property assets a major concern. Protecting these assets can be particularly complex and contentious for agencies whose missions include ensuring public access such as the Department of the Interior (Interior) and the General Services Administration (GSA). GAO's objectives were to (1) identify any challenges that Interior faces in protecting national icons and monuments from terrorism, as well as related actions intended to address these challenges; and similarly, (2) determine any challenges GSA faces related to the protection of federal office buildings it owns or leases and actions that have been taken."
Date:
June 24, 2005
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Coast Guard: Change in Course Improves Deepwater Management and Oversight, but Outcome Still Uncertain
A letter report issued by the Government Accountability Office with an abstract that begins "The Coast Guard's Deepwater Program, under the Department of Homeland Security (DHS), has experienced serious performance and management problems. Deepwater is intended to replace or modernize Coast Guard vessels, aircraft, and the communications and electronic systems that link them together. As of fiscal year 2008, over $4 billion has been appropriated for Deepwater. The Coast Guard awarded a contract in June 2002 to a lead system integrator, Integrated Coast Guard Systems (ICGS), to execute the program using a system-of-systems approach. In response to a Senate report accompanying a Department of Homeland Security appropriations bill, 2008, this GAO report assesses whether the changes the Coast Guard is making to its management and acquisition approach to Deepwater will put it in a position to realize better outcomes. GAO reviewed key program documents and interviewed Coast Guard and contractor personnel."
Date:
June 24, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library