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The development of precipitated iron catalysts with improved stability
The objective of this program is to identify the chemical principles governing the deactivation of precipitated iron catalysts during Fischer-Tropsch synthesis and to use these chemical principles in the design of catalysts suitable for slurry reactors. The performance targets are 88% CO+H{sub 2} conversion with less than 1% deactivation/day for 1 month and a methane and ethane selectivity of no more than 7% (based on hydrocarbons and oxygenates only) at a space velocity of at least 2 normal liters per hr per gram iron (NL/hr/gFe) using a synthesis gas with 0.5-1.0 H{sub 2}:CO ratio in a slurry reactor.
Date:
May 6, 1992
Creator:
Abrevaya, H.
Object Type:
Report
System:
The UNT Digital Library
Powers of the President
This report is about the powers of the President.
Date:
May 6, 1969
Creator:
Tansill, William R.
Object Type:
Report
System:
The UNT Digital Library
Powers Of The President
This report consists of the powers of president.
Date:
May 6, 1969
Creator:
Tansill, William R.
Object Type:
Report
System:
The UNT Digital Library
Poll Taxes Levied By States
This report documents how every state deals with the poll tax, and the effect of the poll tax on the voting rights of citizens.
Date:
May 6, 1965
Creator:
Thornton, Robert L.
Object Type:
Report
System:
The UNT Digital Library
Postwar Presidents and the Senate Foreign Relations Committee, 1969.
This report is about the President-Senate foreign relations committee relationship.
Date:
May 6, 1969
Creator:
Collier, Ellen C.
Object Type:
Report
System:
The UNT Digital Library
Optimization of a VISAR for measuring flyer-plate velocities
VISAR (Velocity Interferometer System for Any Reflector) is commonly used for measuring flyer-plate velocities up to 6 km/s. Flyer plates can travel as much as 1 mm, which is large compared to usual depth-of-focus requirements for VISARs. Flyer plates are explosively driven, or driven by some other very energetic means; as such, they must be tested in a chamber, which will contain the explosion. Routing the laser beam to the chamber and the signal beam to the VISAR can be done safely and easily in multi-mode optical fibers. We have optimized a fiber-coupled VISAR system for measuring flyer-plate velocities. This system given constant signal levels over the full travel of the flyer plate. Furthermore, the signal-collection efficiency is maximized, which allows use of a moderately sized laser. We also have optimized the VISAR cavity so it does not limit the system efficiency while giving a velocity sensitivity of about 1 km/s per fringe. 5 refs.
Date:
May 6, 1992
Creator:
Sweatt, W. C.; Crump, O. B., Jr. & Brigham, W. P.
Object Type:
Article
System:
The UNT Digital Library
The development of precipitated iron catalysts with improved stability
The objective of this program is to identify the chemical principles governing the deactivation of precipitated iron catalysts during Fischer-Tropsch synthesis and to use these chemical principles in the design of catalysts suitable for slurry reactors. The performance targets are 88% CO+H{sub 2} conversion with less than 1% deactivation/day for 1 month and a methane and ethane selectivity of no more than 7% (based on hydrocarbons and oxygenates only) at a space velocity of at least 2 normal liters per hr gram iron (NL/hr/gFe) using a synthesis gas with 0.5--1.0 H{sub 2}:Co ratio in a slurry reactor.
Date:
May 6, 1992
Creator:
Abrevaya, H.
Object Type:
Report
System:
The UNT Digital Library
High-temperature borate liquids: physical properties of glass-forming compositions
Several experimental routes can be used to develop a better understanding of the polymeric constitution (polyanionic and/or polyhedral distribution) of borate, germanate, and silicate glasses. Spectral, chemical, physical-chemical, and mechanical property information can be determined directly for the glass compositions of interest. Generally, only physical-chemical information is readily accessible for the corresponding high temperature liquids. It will be shown that information on each state of matter has its own particular merits. Most of the evidence thus far published suggests an excellent agreement between polyhedral distributions in an oxide glass and its corresponding high temperature liquid state. There is no well known oxide glass forming system for which such a state of affairs does not exist. In spite of this, occasional efforts are put forth which ignore some of what is known for oxide liquids, glasses, and crystals. Such attempts therefore invariably imply, if only indirectly, that significant changes occur in the polyhedral distributions close to the glass transition temperature region. Specific examples to be discussed will include efforts that avoid well known coordination change equilibria such as BO/sub 3/ reversible BO/sub 4/ and GeO/sub 4/ reversible GeO/sub 6/.
Date:
May 6, 1977
Creator:
Riebling, E.F.
Object Type:
Article
System:
The UNT Digital Library
The development of precipitated iron catalysts with improved stability
The objective of this program is to identify the chemical principles governing the deactivation of precipitated iron catalysts during Fischer-Tropsch synthesis and to use these chemical principles in the design of catalysts suitable for slurry reactors. The performance targets are 88% CO+H{sub 2} conversion with less than 1% deactivation/day for 1 month and a methane and ethane selectivity of no more than 7% (based on hydrocarbons and oxygenates only) at a space velocity of at least 2 normal liters per hr per gram iron (NL/hr/gFe) using a synthesis gas with 0.5-1.0 H{sub 2}:CO ratio in a slurry reactor.
Date:
May 6, 1992
Creator:
Abrevaya, H.
Object Type:
Report
System:
The UNT Digital Library
Workshop on core and sample curation for the National Continental Scientific Drilling Program
The Workshop on Core and Sample Curation was held to discuss the best means of handling, distributing, and advertising samples and data collected during a Continental Scientific Drilling Program (CSDP) and to establish better communication between sample curators regarding common problems. It was geneerally agreed that CSDP samples should be handled, on a regional basis, by existing data systems and sample repositories judged to have adequate staff and support. Repository design, sample handling procedures, and sample accounting systems were discussed. Across North America, support for curation of geological samples was varied, but it was strongest within states or regions with well-established energy and mineral industries. A well-supported repository pays for itself through the circulation and preservation of samples and stratigraphic information. A national CSDP must have a well-established curatorial policy and system of regional repositories to circulate information and samples throughout the scientific community. Well-curated samples and data are a national resource with considerable benefits for industry and academia. Attendees agreed to form a Society of Geoscience Curators to maintain communication between curators from private, government, and university repositories and core research laboratories.
Date:
May 6, 1981
Creator:
Goff, S. & Heiken, G. (eds.)
Object Type:
Article
System:
The UNT Digital Library
The development of precipitated iron catalysts with improved stability
The objective of this program is to identify the chemical principles governing the deactivation of precipitated iron catalysts during Fischer-Tropsch synthesis and to use these chemical principles in the design of catalysts suitable for slurry reactors. The performance targets are 88% CO+H{sub 2} conversion with less than 1% deactivation/day for 1 month and a methane and ethane selectivity of no more than 7% (based on hydrocarbons and oxygenates only) at a space velocity of at least 2 normal liters per hr per gram iron (NL/hr/gFe) using a synthesis gas with 0.5-1.0 H{sub 2}:CO ratio in a slurry reactor.
Date:
May 6, 1992
Creator:
Abrevaya, H.
Object Type:
Report
System:
The UNT Digital Library
The development of precipitated iron catalysts with improved stability
The objective of this program is to identify the chemical principles governing the deactivation of precipitated iron catalysts during Fischer-Tropsch synthesis and to use these chemical principles in the design of catalysts suitable for slurry reactors. The performance targets are 88% CO+H{sub 2} conversion with less than 1% deactivation/day for 1 month and a methane and ethane selectivity of no more than 7% (based on hydrocarbons and oxygenates only) at a space velocity of at least 2 normal liters per hr per gram iron (NL/hr/gFe) using a synthesis gas with 0.5-1.0 H{sub 2}:CP ratio in a slurry reactor.
Date:
May 6, 1992
Creator:
Abrevaya, H.
Object Type:
Report
System:
The UNT Digital Library
The development of precipitated iron catalysts with improved stability
The objective of this program is to identify the chemical principles governing the deactivation of precipitated iron catalysts during Fischer-Tropsch synthesis and to use these chemical principles in the design of catalysts suitable for slurry reactors. The performance targets are 88% CO+H{sub 2} conversion with less than 1% deactivation/day for 1 month and a methane and ethane selectivity of no more than 7% (based on hydrocarbons and oxygenates only) at a space velocity of at least 2 normal liters per hr per gram iron (NL/hr/gFe) using a synthesis gas with 0.5-1.0 H{sub 2}:CO ratio in a slurry reactor.
Date:
May 6, 1992
Creator:
Abrevaya, H.
Object Type:
Report
System:
The UNT Digital Library
Beam-storage studies in the Fermilab main ring
Bunched beams of 100 and 150 GeV have been stored in the Fermilab Main Ring for periods of up to one hour. The observations of beam current and beam profiles are analyzed for the effects of gas scattering, chromaticity and non-linear magnetic field.
Date:
May 6, 1982
Creator:
MacLachlan, J.A.
Object Type:
Article
System:
The UNT Digital Library
Social Security Disability: Ticket to Work Participation Has Increased, but Additional Oversight Needed
A letter report issued by the Government Accountability Office with an abstract that begins "The Social Security Administration (SSA) pays billions of dollars in Disability Insurance and Supplemental Security Income to people with disabilities. The Ticket to Work program, established in 1999, provides eligible beneficiaries (ticket holder) with a ticket they may assign to approved service providers, called employment networks (EN). ENs are to provide services to help ticket holders obtain and retain employment and reduce dependence on SSA benefits. ENs receive payments from SSA once a ticket holder has earnings exceeding a set threshold. Due to low participation, SSA changed program regulations in 2008 to provide ENs and ticket holders with more incentives to participate. GAO examined (1) changes in ticket holder and EN participation over time, (2) the range of service approaches used by ENs, and (3) SSA's efforts to evaluate ticket holders and ENs to ensure program integrity and effectiveness. GAO analyzed SSA data, policies, and procedures, and interviewed representatives of 25 ENs, disability advocacy organizations, and SSA."
Date:
May 6, 2011
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Medicare Home Health Care: Payments to Home Health Agencies Are Considerably Higher than Costs
A letter report issued by the General Accounting Office with an abstract that begins "The Balanced Budget Act of 1997 significantly changed Medicare's home health care payments to home health agencies (HHAs). Under a prospective payment system (PPS), HHAs are paid a fixed amount, adjusted for beneficiary care needs, for providing up to 60 days of care---termed a "home health episode." The act also imposed new interim payment limits to moderate spending until the PPS could be implemented. Although PPS was designed to lower Medicare spending below what it was under the interim system, GAO found that Medicare's payments for full home health care episodes were 35 percent higher than estimated in the first six months of 2001. These disparities indicate that Medicare's PPS overpays for services actually provided, although some HHAs facing extraordinary costs not accounted for by the payment system may be financially disadvantaged."
Date:
May 6, 2002
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Grants.gov: Additional Action Needed to Address Persistent Governance and Funding Challenges
A letter report issued by the Government Accountability Office with an abstract that begins "In response to the Federal Financial Assistance Management Improvement Act of 1999, the Office of Management and Budget (OMB), among other things, deployed Grants.gov as the central grant identification and application portal for federal grant programs in 2003 and named the Department of Health and Human Services (HHS) its managing partner. As a result of funding and governance challenges-- such as untimely contributions, a lack of performance metrics, unclear lines of authority, and confusion over roles and responsibilities among Grants.gov's governance bodies-- that have adversely affected operations, GAO is required to examine (1) key factors HHS should consider when proposing a funding model for Grants.gov, and (2) how the Grants.gov governance bodies could address Grants.gov's previously identified governance challenges. To do this, GAO analyzed agency documents and interviewed officials at HHS, OMB, the Grants Executive Board (GEB), three case study agencies that manage similar E-Gov initiatives and three Grants.gov partner agencies."
Date:
May 6, 2011
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
National Park Service: Revenues Could Increase by Charging Allowed Fees for Some Special Uses Permits
A letter report issued by the Government Accountability Office with an abstract that begins "The National Park Service routinely issues permits for special park uses, such as special events or commercial filming and still photography. However, the National Football League's use of the National Mall to launch its 2003 season raised questions about whether permitting such events was consistent with existing policies and law and whether all applicable fees for permitting special park uses were being collected. GAO (1) identified applicable policy guidance for issuing special uses permits for special events and for commercial filming and still photography, (2) assessed the extent to which this guidance was applied during fiscal year 2003, and (3) determined the extent to which the Park Service implemented the requirement to collect location fees for commercial filming and still photography."
Date:
May 6, 2005
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Financial Management: Achieving Financial Statement Auditability in the Department of Defense
A letter report issued by the Government Accountability Office with an abstract that begins "Since the first financial statement audit was attempted at a major Department of Defense (DOD) component over 20 years ago, GAO and DOD auditors have continued to report significant weaknesses in the department's ability to provide timely, reliable, consistent, and accurate information for management analysis, decision-making, and reporting. DOD has undertaken a number of initiatives over the years, such as the Financial Improvement Initiative in 2003, to improve the department's business operations, including financial management, and achieve clean financial statement audit opinions. However, these initiatives have met with limited success. In 2005, the DOD Comptroller established the DOD Financial Improvement and Audit Readiness (FIAR) Directorate to manage DOD-wide financial improvement efforts and to integrate those efforts with transformation activities, such as those outlined in the Enterprise Transition Plan, across the department. The components report accomplishments and progress against planned corrective actions to the FIAR Directorate for reporting in the FIAR Plan. Congress asked GAO to analyze the department's FIAR Plan to identify any areas where improvements are needed to enhance the plan's effectiveness as a management tool for guiding, monitoring, and reporting on the department's efforts …
Date:
May 6, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Defense Acquisitions: Strong Leadership Is Key to Planning and Executing Stable Weapon Programs
A letter report issued by the Government Accountability Office with an abstract that begins "For several decades, Congress and the Department of Defense (DOD) have explored ways to improve the acquisition of major weapon systems, yet program outcomes and their underlying causes have proven resistant to change. Last year, we reported that the cumulative cost growth in DOD's portfolio of major programs was $296 billion. The opportunity to achieve meaningful improvements may now be at hand with the recent introduction of major reforms to the acquisition process. In response to a mandate from this Committee, GAO has issued several reports about DOD's budget and requirements processes to support weapon program stability. This follow-on report focuses on (1) identifying weapon programs that are achieving good outcomes, (2) the factors that enable some programs to succeed, and (3) lessons to be learned from these programs to guide implementation of recent reforms. GAO analyzed DOD's portfolio of major defense programs and conducted case study reviews of five programs."
Date:
May 6, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Aviation Safety: Improved Data Quality and Analysis Capabilities Are Needed as FAA Plans a Risk-Based Approach to Safety Oversight
A letter report issued by the Government Accountability Office with an abstract that begins "To improve aviation safety, the Federal Aviation Administration (FAA) plans to have in place the initial capabilities of a risk-based approach to safety oversight, known as a safety management system (SMS), by the end of fiscal year 2010. FAA is also implementing new procedures and technologies to enhance the safety, capacity, and efficiency of the national airspace system. Data are central to SMS and FAA's ability to test the impact of these changes on safety. This congressionally requested report addresses FAA's (1) current and planned use of data to oversee aviation safety, (2) access to data for monitoring aviation safety and the safety performance of various industry sectors, and (3) efforts to help ensure data quality. To perform this work, GAO reviewed 13 databases that contain data on key aviation safety events, assessed data quality controls for the databases, and interviewed agency and industry officials, as well as 10 experts in aviation safety and data."
Date:
May 6, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Preliminary Observations on the Use and Oversight of U.S. Coalition Support Funds Provided to Pakistan
Correspondence issued by the Government Accountability Office with an abstract that begins "According to U.S. embassy officials in Islamabad and unclassified U.S. intelligence documents, since 2002, al Qaeda and the Taliban have used Pakistan's Federally Administered Tribal Areas (FATA) and the border region to attack Pakistani, Afghan, U.S. and coalition troops; plan and train for attacks against U.S. interests; destabilize Pakistan; and spread radical Islamist ideologies that threaten U.S. interests. Since October 2001, the United States has provided Pakistan with over $10 billion for military, economic, and development activities in support of the critical U.S. national security goals of destroying terrorist threats and closing terrorist safe havens. A major component of this effort has been U.S. Coalition Support Funds (CSF) reimbursed to Pakistan. The purpose of CSF is to reimburse coalition countries for logistical and military support provided to United States military operations in the global war on terror. In Pakistan, reimbursements through CSF are intended to enable the government of Pakistan to attack terrorist networks in the FATA and stabilize the border areas. It is structured as a reimbursement mechanism in which the U.S. Department of Defense (Defense) policy is to validate that support was provided, costs were incurred, …
Date:
May 6, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Funding for 10 States' Programs Supported by Four Environmental Protection Agency Categorical Grants
Correspondence issued by the Government Accountability Office with an abstract that begins "State environmental agencies use federal grants from the Environmental Protection Agency, in addition to their own funds, to help implement and enforce the nation's environmental laws, including the Clean Water Act, the Clean Air Act, and the Safe Drinking Water Act. Under this approach the states have an important role as partners and co-regulators, and, among other things, issue and enforce permits, carry out inspections, and monitor and collect data. EPA provides grants, known as categorical grants, to states to assist in implementing water, air, waste, and other programs that carry out federal environmental requirements."
Date:
May 6, 2013
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
USA Patriot Act: Additional Guidance Could Improve Implementation of Regulations Related to Customer Identification and Information Sharing Procedures
A letter report issued by the Government Accountability Office with an abstract that begins "Title III of the USA PATRIOT Act of 2001, passed after the September 11 terrorist attacks, amended U.S. anti-money laundering laws and imposed new requirements on financial institutions. Section 326 of the act required the development of minimum standards for verifying the identity of financial institution customers. Section 314 required the development of regulations encouraging the further sharing of information between law enforcement agencies and the financial industry and between the institutions themselves. Because of concerns about the implementation of these new provisions, GAO determined how (1) the government developed the regulations, educated the financial industry on them, and challenges it encountered; (2) regulators have updated guidance, trained examiners, and examined firms for compliance; and (3) the new regulations have affected law enforcement investigations."
Date:
May 6, 2005
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library