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Fundamental characterization of alternate fuel effects in continuous combustion systems. Summary technical progress report, August 15, 1978-January 31, 1980
The overall objective of this contract is to assist in the development of fuel-flexible combustion systems for gas turbines as well as Rankine and Stirling cycle engines. The primary emphasis of the program is on liquid hydrocarbons produced from non-petroleum resources. Fuel-flexible combustion systems will provide for more rapid transition of these alternative fuels into important future energy utilization centers (especially utility power generation with the combined cycle gas turbine). The specific technical objectives of the program are: (a) develop an improved understanding of relationships between alternative fuel properties and continuous combustion system effects, and (b) provide analytical modeling/correlation capabilities to be used as design aids for development of fuel-tolerant combustion systems. This is the second major report of the program. Key experimental findings during this reporting period concern stirred combustor soot production during operation at controlled temperature conditions, soot production as a function of combustor residence time, an improved measurement technique for total hydrocarbons and initial stirred combustor results of fuel nitrogen conversion. While the results to be presented concern a stirred combustor which utilizes premixed fuel vapor/oxidant mixtures, a new combustor which combusts liquid fuel injected into the reactor as a spray has been developed and will be …
Date:
February 27, 1980
Creator:
Blazowski, W.S.; Edelman, R.B. & Wong, E.
Object Type:
Report
System:
The UNT Digital Library
Diffusion welding multifilament superconductive composites
Diffusion welding is shown to be a feasible method for joining composites of niobium-titanium superconductor alloy filaments in a pure copper matrix. Good results were repeatedly obtained using 15/sup 0/ scarf joints welded with externally heated tooling and simple uniaxial compression loading in a conventional hydraulic press. Weld cycles of less than one hour total elapsed time were readily attainable. Through proper closed-die design, it was possible to increase welding pressure sufficiently to use relatively low temperatures to coincide with the optimum aging heat treatment of the superconductor alloy. This temperature limitation is important to retain optimal superconductor properties. Confirming measurements of critical current density of welded joints at 4.2/sup 0/K are in progress. In the welded joints made under optimum conditions, there is bonding of all constituents, including superconductor filaments. Weld tooling which effectively contains the relatively fluid matrix, and resists deformation during repeated weld cycles, is essential to the successful application of the diffusion welding process to these composites.
Date:
February 27, 1978
Creator:
Witherell, C.E.
Object Type:
Article
System:
The UNT Digital Library
Information systems for engineering sustainable development
The ability of a country to follow sustainable development paths is determined to a large extent by the capacity or capabilities of its people and its institutions. Specifically, capacity-building in the UNCED terminology encompasses the country's human, scientific, technological, organizational, institutional, and resource capabilities. A fundamental goal of capacity-building is to enhance the ability to pose, evaluate and address crucial questions related to policy choices and methods of implementation among development options. As a result the United Nations Conference on Environment and Development (UNCED) Agenda 21 planning process has identified the need for better methods by which information can be transferred between industrialized nations and developing nations. The reasons for better methods of information transfer include facilitating decisions related to sustainable development and building the capacity of developing nations to better plan their future in both an economical and environmentally sound manner. This paper is a discussion on mechanisms for providing information and technologies available for presenting the information to a variety of cultures and levels of technical literacy. Consideration is given to access to information technology as well as to the cost to the user. One concept discussed includes an Engineering Partnership'' which brings together the talents and resources …
Date:
February 27, 1992
Creator:
Leonard, R.S.
Object Type:
Article
System:
The UNT Digital Library
ISOPERIMETRIC AND OTHER INEQUALITIES IN THE THEORY OF NEUTRON TRANSPORT, II
In a prevlous paper, some inequalities occurring in the one-veloclty theory of neutron transport with lsotropic scattering were derived. Some of the previous results are generalized to the case of linearly anisotropic scattering. (auth)
Date:
February 27, 1962
Creator:
Dresner, L.
Object Type:
Report
System:
The UNT Digital Library
Interim findings of programmatic options for a building design competition for energy conservation
The purpose of this report is to present various programmatic options for the Buildings and Community Systems (BCS) to use in utilizing a building design competition as a mechanism to promote the widescale adoption of energy conservation in new buildings design. The general program requirements were that: (1) the design competition focus on the multi-family low-rise residential market; (2) the design competition would result in the construction of a building or buildings under a Federally-assisted housing program; (3) the competition would be among competitors who are professional architects, designers, and/or developers; (4) the design competition would generate a high degree of public and professional awareness of conservation options in building design; and (5) the competition would be based on the use of a common standard of judgement (e.g., Btu's per square foot). The purpose of the initial phase of this study has been: (1) to assess the feasibility of developing a design competition that can meet the general requirements; (2) to identify potential program options for the competition; and (3) to develop a preliminary structural framework for it. This paper reports the study approach and the preliminary findings. (MCW)
Date:
February 27, 1978
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Changes in the Arctic: Background and Issues for Congress
This report provides an overview of Arctic-related issues for Congress and refers readers to more in-depth CRS reports on specific relevant topics.
Date:
February 27, 2014
Creator:
O'Rourke, Ronald
Object Type:
Report
System:
The UNT Digital Library
Coast Guard Cutter Procurement: Background and Issues for Congress
This report provides background information and potential oversight issues for Congress on the Coast Guard's programs for procuring 8 National Security Cutters (NSCs), 25 Offshore Patrol Cutters (OPCs), and 58 Fast Response Cutters (FRCs).
Date:
February 27, 2014
Creator:
O'Rourke, Ronald
Object Type:
Report
System:
The UNT Digital Library
Afghanistan: Politics, Elections, and Government Performance
This report discusses the current political state of Afghanistan, and the Afghan government. It also discusses Afghanistan's relationship with the United States, particularly U.S. efforts to urge President Hamid Karzai to address corruption within the Afghan government.
Date:
February 27, 2014
Creator:
Katzman, Kenneth
Object Type:
Report
System:
The UNT Digital Library
Access to Arts Education: Inclusion of Additional Questions in Education's Planned Research Would Help Explain Why Instruction Time Has Decreased for Some Students
A letter report issued by the Government Accountability Office with an abstract that begins "Under the No Child Left Behind Act (NCLBA), districts and schools must demonstrate adequate yearly progress (AYP) for all students. Because schools may spend more time improving students' academic skills to meet NCLBA's requirements, some are concerned that arts education might be cut back. To determine how, if at all, student access to arts education has changed since NCLBA, the Congress asked: (1) has the amount of instruction time for arts education changed and, if so, have certain groups been more affected than others, (2) to what extent have state education agencies' requirements and funding for arts education changed since NCLBA, (3) what are school officials in selected districts doing to provide arts education since NCLBA and what challenges do they face in doing so, and (4) what is known about the effect of arts education in improving student outcomes? GAO analyzed data from the U.S. Department of Education (Education), surveyed 50 state arts officials, interviewed officials in 8 school districts and 19 schools, and reviewed existing research."
Date:
February 27, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
DOD and VA Health Care: Incentives Program for Sharing Resources
Correspondence issued by the General Accounting Office with an abstract that begins "Combined, the Department of Defense (DOD) and the Department of Veterans Affairs (VA) provide health care services to about 12 million beneficiaries at an estimated cost of about $53 billion for fiscal year 2004--$26.7 billion for DOD and $26.5 billion for VA. In 1982 the Congress passed the VA and DOD Health Resources Sharing and Emergency Operations Act (Sharing Act) to promote more cost-effective use of health care resources and more efficient delivery of care. Specifically, the Congress authorized military treatment facilities and VA medical centers to enter into sharing agreements to buy, sell, and barter medical and support services. To further encourage on-going collaboration, the Congress, in section 721 of the Bob Stump National Defense Authorization Act (NDAA) for Fiscal Year 2003, directed the Secretary of Defense and the Secretary of Veterans Affairs to establish a joint incentives program to identify and provide incentives to implement, fund, and evaluate creative health care coordination and sharing initiatives between DOD and VA. To facilitate the program, each Secretary is required to contribute a minimum of $15 million from each department's appropriation into an account established in the U. S. …
Date:
February 27, 2004
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Competitive Sourcing: Greater Emphasis Needed on Increasing Efficiency and Improving Performance
A letter report issued by the General Accounting Office with an abstract that begins "In August 2001, the administration announced competitive sourcing as one of five initiatives in the President's Management Agenda. Under competitive sourcing, federal agencies open their commercial activities to competition among public and private sector sources. While competitive sourcing is expected to encourage innovation and improve efficiency and performance, it represents a major management change for most agencies. This report describes the progress selected agencies have made in establishing a competitive sourcing program, identifies major challenges these agencies are facing, and discusses strategies they are using to select activities for competition."
Date:
February 27, 2004
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Individuals with Disabilities Education Act: Standards Needed to Improve Identification of Racial and Ethnic Overrepresentation in Special Education
A letter report issued by the Government Accountability Office with an abstract that begins "In 2010, states required about 2 percent of all districts to use Individuals with Disabilities Education Act (IDEA) funds for early intervening services to address the overrepresentation of racial and ethnic groups in special education. Based on definitions states individually developed to measure this overrepresentation-- referred to in IDEA as significant disproportionality--356 districts were required to provide services. Half of these districts were clustered in five states and 73 were in Louisiana alone. States have used flexibility provided by Education to develop their own definitions of significant disproportionality and GAO's analysis of 16 selected states found wide variation in definitions. Further, GAO found that the way some states defined overrepresentation made it unlikely that any districts would be identified and thus required to provide early intervening services. Nebraska and Louisiana illustrate differing outcomes that can result from different state definitions. In Nebraska, one of 21 states that did not require any districts to provide services in 2010-11, racial and ethnic groups must be identified for special education at a rate three times higher than for other groups for 2 consecutive years. In contrast, racial and ethnic …
Date:
February 27, 2013
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Defense Transportation: DOD Can Better Ensure That Federal Agencies Fully Reimburse for Using Military Aircraft
A letter report issued by the Government Accountability Office with an abstract that begins "The Air Force's 89th Airlift Wing flew 2,513 special air missions for senior federal government officials during fiscal years 2008 through 2012, with the number of missions increasing by 13 percent from 463 missions in fiscal year 2008 to 522 missions in fiscal year 2012. The cost of special air missions ranged from about $17 million in fiscal year 2008 to about $26 million in fiscal year 2012, and the fees paid for secure communication services ranged from about $4 million in fiscal year 2008 to $7 million in fiscal year 2012. The federal agencies with the greatest number of special air missions were the Department of Defense (DOD) and the Department of State. Members of Congress had the next highest number of missions. Collectively, these agencies and Congress constituted about 91 percent of all special air missions flown by the 89th Airlift Wing."
Date:
February 27, 2014
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Transportation Safety: Medical Certification and Background Check Requirements for Pilots, Vessel Masters, and Commercial Drivers Vary
Correspondence issued by the Government Accountability Office with an abstract that begins "Federal laws and regulations require that safety-related transportation professionals undergo screening to ensure that they can safely perform their jobs. Medical certification and background checks of selected pilots, vessel masters, and commercial drivers are part of the requirements for licensing these workers. Certification or licensing also includes testing workers' knowledge and skills required for the jobs. These checks are critical because physically or mentally unfit transportation workers pose a danger to themselves and to the public. Because of concerns raised by recent investigations of the reliability of pilot medical certifications, Congress asked us to first describe the requirements for medical and background checks for selected transportation workers. Accordingly, we addressed the following questions for (1) medical certification and (2) background checks: What are the regulations governing pilots, vessel masters, and commercial drivers and what role do government entities have in completing the certifications and background checks? A second report, which will be issued mid-2008, will provide information about the steps that the Federal Aviation Administration (FAA) takes to check the accuracy of pilot medical certificates. Federal regulations require that pilots have both pilot certificates and medical certificates prior …
Date:
February 27, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Bank Secrecy Act: Suspicious Activity Report Use Is Increasing, but FinCEN Needs to Further Develop and Document Its Form Revision Process
A letter report issued by the Government Accountability Office with an abstract that begins "To assist law enforcement agencies in their efforts to combat money laundering, terrorist financing, and other financial crimes, the Bank Secrecy Act (BSA) requires financial institutions to file suspicious activity reports (SAR) to inform the federal government of transactions related to possible violations of law or regulation. Depository institutions have been concerned about the resources required to file SARs and the extent to which SARs are used. GAO was asked to examine (1) factors affecting the number of SARs filed, (2) actions agencies have taken to improve the usefulness of SARs, (3) federal agencies' use of SARs, and (4) the effectiveness of the process used to revise SAR forms. GAO reviewed laws and agency documents; analyzed SAR filings; and interviewed representatives from the Financial Crimes Enforcement Network (FinCEN), law enforcement agencies, bank regulators, and depository institutions."
Date:
February 27, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Managing for Results: Data-Driven Performance Reviews Show Promise But Agencies Should Explore How to Involve Other Relevant Agencies
A letter report issued by the Government Accountability Office with an abstract that begins "GAO identified nine leading practices to promote successful data-driven performance reviews--referred to as quarterly performance reviews--at the federal level."
Date:
February 27, 2013
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Social Security Programs: Scope of SSA's Authority to Deny Benefits to Fugitive Felons and to Release Information About OASI and DI Beneficiaries Who Are Fugitive Felons
Correspondence issued by the General Accounting Office with an abstract that begins "Fugitive felons are ineligible for Supplemental Security Income (SSI) benefits. The Social Security Administration (SSA) will, upon request, provide law enforcement agencies with the current addresses and Social Security numbers of fugitive felons who are SSI recipients. The Privacy Act of 1974 generally prohibits federal agencies from disclosing to anyone, including other government agencies, information they have on file on individuals. When the head of a law enforcement agency asks SSA for information on an individual as part of civil or criminal investigations, SSA has the authority under the Privacy Act to disclose this information but is not required to do so. The Social Security Act does not give SSA the authority to determine if individuals are ineligible for Old Age and Survivors Insurance and Disability Insurance benefits because they are fugitive felons."
Date:
February 27, 2002
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Renewable Energy: Federal Agencies Implement Hundreds of Initiatives
A letter report issued by the Government Accountability Office with an abstract that begins "Governmentwide, 23 agencies and their 130 subagencies GAO reviewed implemented nearly 700 renewable energy initiatives in fiscal year 2010. The Departments of Defense (DOD), Agriculture (USDA), Energy (DOE), and the Interior were collectively responsible for almost 60 percent of all initiatives."
Date:
February 27, 2012
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Tax Administration: Comparison of the Reported Tax Liabilities of Foreign- and U.S.-Controlled Corporations, 1996-2000
A letter report issued by the General Accounting Office with an abstract that begins "In prior reports, GAO found differences in the percentages of foreign-controlled corporations (FCC) and U.S.-controlled corporations (USCC) reporting no tax liability. Based on concerns that FCCs could be avoiding taxes by improperly shifting income to lower tax countries, GAO was asked to compare, for the years 1996 through 2000, (1) FCCs and USCCs, based on the tax liabilities they reported on their U.S. income tax returns--including the percentages reporting zero liabilities--and (2) the differences in FCCs and USCCs in terms of age and industry concentration and the extent to which these differences might explain tax reporting patterns. The report provides information separately for large corporations--those with at least $250 million in assets or $50 million in gross receipts--because, while they account for only 1 percent of all corporations, they own over 93 percent of all assets reported on corporate returns."
Date:
February 27, 2004
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Electronic Health Records: VA and DOD Need to Support Cost and Schedule Claims, Develop Interoperability Plans, and Improve Collaboration
A letter report issued by the Government Accountability Office with an abstract that begins "The Departments of Veterans Affairs (VA) and Defense (DOD) abandoned their plans to develop an integrated electronic health record (iEHR) system and are instead pursuing separate efforts to modernize or replace their existing systems in an attempt to create an interoperable electronic health record. Specifically, in February 2013, the secretaries cited challenges in the cost and schedule for developing the single, integrated system and announced that each department would focus instead on either building or acquiring similar core sets of electronic health record capabilities, then ensuring interoperability between them. However, VA and DOD have not substantiated their claims that the current approach will be less expensive and more timely than the single-system approach. Major investment decisions—including terminating or significantly restructuring an ongoing program—should be justified using analyses that compare the costs and schedules of alternative proposals. Yet, the departments have not developed revised cost and schedule estimates for their new modernization efforts and any additional efforts needed to achieve interoperability between the new systems, and compared them with the relevant estimates for their former approach. In the absence of such a comparison, VA and DOD lack …
Date:
February 27, 2014
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Military Personnel: Bankruptcy Filings among Active Duty Service Members
Correspondence issued by the General Accounting Office with an abstract that begins "A declaration of bankruptcy is an extreme example of the failure to manage personal finances. Debtors who file personal bankruptcy petitions usually file under chapter 7 or chapter 13 of the bankruptcy code. Generally, debtors who file under chapter 7 of the bankruptcy code seek a discharge of all their eligible dischargeable debts. Debtors who file under chapter 13 submit a repayment plan, which must be confirmed by the bankruptcy court, for paying all or a portion of their debts over a 3-year period unless, for cause, the court approves a longer period not to exceed 5 years. This letter responds to the request of the Ranking Minority Member, Subcommittee on Oversight of Government Management, the Federal Workforce, and the District of Columbia, Senate Committee on Governmental Affairs. We determined (1) the rate of personal bankruptcy filings among active duty military personnel, and how that rate compared with the rate found in the U.S. population; and (2) factors that should be considered when attempting to compare the rate of bankruptcy filings for active duty military personnel with the rate for the U.S. population."
Date:
February 27, 2004
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Food Stamp Program: Implementation of the Employment and Training Program for Able-Bodied Adults Without Dependents
Correspondence issued by the General Accounting Office with an abstract that begins "Recent legislation increased funding for food stamp employment and training programs from fiscal year 1998 through fiscal year 2002, when the Food Stamp Program is scheduled to be reauthorized. To qualify for these additional federal funds, states must maintain their state-funded expenditures for employment and training at a level no lower than in fiscal year 1996; these additional funds are referred to as maintenance-of-efforts funds. The act requires that at least 80 percent of all employment and training funds be spent on able-bodied adults without dependents (ABAWD). The law also gives the states the option to exempt from the work requirement up to 15 percent of their ABAWD population not residing in a waived area or otherwise exempted from the work requirement. GAO examined (1) the trends in ABAWD participation in the Food Stamp Program, including recent data on ABAWDs who are living in waived areas, exempted from work requirements, participating in qualifying employment and training activities, or working, and (2) the extent to which the states have used employment and training program funding. GAO found that ABAWD participation in the Food Stamp Program has dropped rapidly since …
Date:
February 27, 2001
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Commercial Vehicle Security: Risk-Based Approach Needed to Secure the Commercial Vehicle Sector
A letter report issued by the Government Accountability Office with an abstract that begins "Numerous incidents around the world have highlighted the vulnerability of commercial vehicles to terrorist acts. Commercial vehicles include over 1 million highly diverse truck and intercity bus firms. Within the Department of Homeland Security (DHS), the Transportation Security Administration (TSA) has primary federal responsibility for ensuring the security of the commercial vehicle sector, while vehicle operators are responsible for implementing security measures for their firms. GAO was asked to examine: (1) the extent to which TSA has assessed security risks for commercial vehicles; (2) actions taken by key stakeholders to mitigate identified risks; and (3) TSA efforts to coordinate its security strategy with other federal, state, and private sector stakeholders. GAO reviewed TSA plans, assessments, and other documents; visited a nonrandom sample of 26 commercial truck and bus companies of varying sizes, locations, and types of operations; and interviewed TSA and other federal and state officials and industry representatives."
Date:
February 27, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Presidential Helicopter Acquisition: Effort Delayed as DOD Adopts New Approach to Balance Requirements, Costs, and Schedule
Correspondence issued by the Government Accountability Office with an abstract that begins "The formal start of the VXX presidential helicopter program has been delayed, as finding an acceptable solution has proved elusive. Last year, we reported that the VXX effort was in the earliest stages of development--still developing a business case to launch product development. At that time, an AOArequired for a Milestone A decision initiating the programwas nearing completion and a Milestone A decision was expected to occur sometime in fiscal year 2011. In March 2011 the Navy sent DOD its VXX AOA study, which Navy officials stated was done in compliance with DOD-provided guidance. DOD did not, however, approve the study as it did not find that the study provided a cost effective solution. Rather, OSD and the Navy subsequently decided to update the analysis of alternatives using an acquisition strategy that might result in a more timely and affordable program using additional guidance provided by OSD in December 2011. That guidance reflects insights on requirements gained in the last year and expectations of using a streamlined acquisition approach proposed by the Navy. This has delayed the VXX programs entry into development. Navy officials expect that this new …
Date:
February 27, 2012
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library