States

DEPOT: A Database of Environmental Parameters, Organizations and Tools (open access)

DEPOT: A Database of Environmental Parameters, Organizations and Tools

The Database of Environmental Parameters, Organizations, and Tools (DEPOT) has been developed by the Department of Energy (DOE) as a central warehouse for access to data essential for environmental risk assessment analyses. Initial efforts have concentrated on groundwater and vadose zone transport data and bioaccumulation factors. DEPOT seeks to provide a source of referenced data that, wherever possible, includes the level of uncertainty associated with these parameters. Based on the amount of data available for a particular parameter, uncertainty is expressed as a standard deviation or a distribution function. DEPOT also provides DOE site-specific performance assessment data, pathway-specific transport data, and links to environmental regulations, disposal site waste acceptance criteria, other environmental parameter databases, and environmental risk assessment models.
Date: December 19, 2000
Creator: CARSON, SUSAN D.; Hunter, Regina Lee; Malczynski, Leonard A.; POHL, PHILLIP I.; Quintana, Enrico; Souza, Caroline A. et al.
Object Type: Article
System: The UNT Digital Library
Education Vouchers: Constitutional Issues and Cases (open access)

Education Vouchers: Constitutional Issues and Cases

This report details the constitutional standards that currently apply to indirect aid programs and summarizes all of the pertinent state and federal court decisions, including the Ohio case that will be heard by the Supreme Court. On September 25, 2001, the Supreme Court agreed to review a case raising the controversial issue of the constitutionality of education vouchers. In Zelman v. Simmons-Harris the Sixth Circuit held Ohio’s Pilot Scholarship Program, which provided up to $2500 to help low-income students in Cleveland’s public schools attend private schools in the city, to violate the establishment of religion clause of the First Amendment.
Date: December 19, 2000
Creator: Ackerman, David M.
Object Type: Report
System: The UNT Digital Library
The European Union's Ban on Hormone-Treated Meat (open access)

The European Union's Ban on Hormone-Treated Meat

The European Union (EU) continues to ban imports of meat derived from animals treated with growth hormones despite rulings by World Trade Organization (WTO) dispute settlement panels that the banis inconsistent with the Uruguay Round Agreement on health and safety measures used to restrict imports (the Sanitary and Phytosanitary or SPS Agreement). U.S. retaliation, authorized by the WTO, in the form of 100% duties on $116 million of EU agricultural products remains in effect while negotiations to resolve the dispute continue. Thus far, EU offers of compensation (trade concessions) for lost U.S. meat exports in lieu of lifting the ban have been rejected by the United States.
Date: December 19, 2000
Creator: Hanrahan, Charles E.
Object Type: Report
System: The UNT Digital Library
Foreign Affairs, Defense, and Trade Policy: Key Issues in the 107th Congress (open access)

Foreign Affairs, Defense, and Trade Policy: Key Issues in the 107th Congress

Among the 107th Congress' first orders of business will be dealing with the initiatives-both domestic and foreign policy-proposed by President Bush throughout his presidential campaign. This report contains information on those orders of business including U.S. foreign and security policy, global issues, defense policy, and more.
Date: December 19, 2000
Creator: Grasso, Valerie Bailey & Epstein, Susan B.
Object Type: Report
System: The UNT Digital Library
Geologic Framework Model Analysis Model Report (open access)

Geologic Framework Model Analysis Model Report

The purpose of this report is to document the Geologic Framework Model (GFM), Version 3.1 (GFM3.1) with regard to data input, modeling methods, assumptions, uncertainties, limitations, and validation of the model results, qualification status of the model, and the differences between Version 3.1 and previous versions. The GFM represents a three-dimensional interpretation of the stratigraphy and structural features of the location of the potential Yucca Mountain radioactive waste repository. The GFM encompasses an area of 65 square miles (170 square kilometers) and a volume of 185 cubic miles (771 cubic kilometers). The boundaries of the GFM were chosen to encompass the most widely distributed set of exploratory boreholes (the Water Table or WT series) and to provide a geologic framework over the area of interest for hydrologic flow and radionuclide transport modeling through the unsaturated zone (UZ). The depth of the model is constrained by the inferred depth of the Tertiary-Paleozoic unconformity. The GFM was constructed from geologic map and borehole data. Additional information from measured stratigraphy sections, gravity profiles, and seismic profiles was also considered. This interim change notice (ICN) was prepared in accordance with the Technical Work Plan for the Integrated Site Model Process Model Report Revision 01 …
Date: December 19, 2000
Creator: Clayton, R.
Object Type: Report
System: The UNT Digital Library
Impedance behavior of the LiMn2O4/LiPF6-DMC-EC interface during cycling (open access)

Impedance behavior of the LiMn2O4/LiPF6-DMC-EC interface during cycling

Room temperature impedance measurements of the LiMn2O4/LiPF6-EC-DMC interface have been used to identify a previously unreported step in the formation of the SEI layer on this cathode. The low frequency impedance and potential of pure dense LiMn2O4 films was found to depend logarithmically on time in the end-of-discharge (EOD) state. The rate of the impedance rise decreased with Mn3+ content. The increased impedance was removed by oxidation of the film to 4.5 V vs. Li/Li+. The observations are consistent with a reversible disproportionation of part of the LiMn2O4 into Li2Mn2O4 and l-Mn2O4. Analyses of cyclic voltammograms and impedance spectra at intervals during constant current cycling of the LiMn2O4 films suggest that Li2Mn2O4 on the surface also plays a major role in the capacity fade.
Date: December 19, 2000
Creator: Striebel, Kathryn A.; Sakai, Eiji & Cairns, Elton J.
Object Type: Article
System: The UNT Digital Library
Internet-Based Calibration of a Multifunction Calibrator (open access)

Internet-Based Calibration of a Multifunction Calibrator

A new way of providing calibration services is evolving which employs the Internet to expand present capabilities and make the calibration process more interactive. Sandia National Laboratories and the National Institute of Standards and Technology are collaborating to set up and demonstrate a remote calibration of multijunction calibrators using this Internet-based technique that is becoming known as e-calibration. This paper describes the measurement philosophy and the Internet resources that can provide real-time audio/video/data exchange, consultation and training, as well as web-accessible test procedures, software and calibration reports. The communication system utilizes commercial hardware and software that should be easy to integrate into most calibration laboratories.
Date: December 19, 2000
Creator: Bunting Baca, Lisa A.; Duda, Leonard E., Jr.; Walker, Russell M.; Oldham, Nile & Parker, Mark
Object Type: Article
System: The UNT Digital Library
Mental Health: Community-Based Care Increases for People With Serious Mental Illness (open access)

Mental Health: Community-Based Care Increases for People With Serious Mental Illness

A letter report issued by the General Accounting Office with an abstract that begins "Between 1987 and 1997, the growth in mental health spending in the United States roughly paralleled the growth in overall health care spending. However, federal mental health spending grew at more than twice the rate of state and local spending. This led to the federal government's share surpassing that of state and local governments, while the share attributable to private sources declined slightly. The ability to care for more people in the community has been facilitated by the continued development of new medications that have fewer side effects and are more effective in helping people manage their illness. Furthermore, treatment approaches, such as assertive community treatment, supported employment, and supportive housing, provide the ongoing assistance that adults with serious mental illness (SMI) often need to function in the community. The Health Care Financing Administration (HCFA) has encouraged the use of community-based services for Medicaid beneficiaries with SMI by disseminating information on the use of new medications and treatment models, which can help people function better in the community. HCFA also supports states' use of Medicaid managed health care services. However, incentives associated with capitated payment can …
Date: December 19, 2000
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
Preliminary Ion Exchange Modeling for Removal of Technetium from Hanford Waste Using SuperLig 639 Resin (open access)

Preliminary Ion Exchange Modeling for Removal of Technetium from Hanford Waste Using SuperLig 639 Resin

A proposed facility is being designed for the immobilization of Hanford underground storage tank radioactive waste. The waste is pretreated to split it into Low Activity Waste (LAW) and High Level Waste (HLW) streams for separate vitrification. One unit process in the facility is designed to remove radioactive technetium by ion-exchange from a highly alkaline aqueous phase.
Date: December 19, 2000
Creator: Hamm, L.L.
Object Type: Report
System: The UNT Digital Library
A Semi-Analytical Solution for Steady Infiltration in Unsaturated Fractured Rock (open access)

A Semi-Analytical Solution for Steady Infiltration in Unsaturated Fractured Rock

A semi-analytical solution is developed for one-dimensional steady infiltration in unsaturated fractured rock. The differential form of the mass conservation equation is integrated to yield an analytical expression relating elevation to a function of capillary pressure and relative permeability of the fracture and rock matrix. Constitutive relationships for unsaturated flow in this analysis are taken from van Genuchten [1980] and Mualem [1976], but alternative relations can also be implemented in the integral solution. Expressions are presented for the liquid saturations and pore velocities in the fracture, matrix, and effective continuum materials as a function of capillary pressure and elevation. Results of the analytical solution are applied to examples of infiltration in fractured rock consisting of both homogeneous and composite (layered) domains. The analytical results are also compared to numerical simulations to demonstrate the use of the analytical solution as a benchmarking tool to address computational issues such as grid refinement.
Date: December 19, 2000
Creator: HO,CLIFFORD K.
Object Type: Article
System: The UNT Digital Library
Summary of Testing of SuperLig 639 at the TFL Ion Exchange Facility (open access)

Summary of Testing of SuperLig 639 at the TFL Ion Exchange Facility

A pilot scale facility was designed and built in the Thermal Fluids Laboratory at the Savannah River Technology Center to test ion exchange resins for removing technetium and cesium from simulated Hanford Low Activity Waste (LAW). The facility supports the design of the Hanford River Protection Project for BNFL, Inc. The pilot scale system mimics the full-length of the columns and the operational scenario of the planned ion exchange system. Purposes of the testing include confirmation of the design, evaluation of methods for process optimization and developing methods for waste volume minimization. This report documents the performance of the technetium removal resin.
Date: December 19, 2000
Creator: Steimke, J. L.
Object Type: Report
System: The UNT Digital Library
X-Ray Powder Diffraction Study of Synthetic Palmierite, K{sub 2}Pb(SO{sub 4}){sub 2} (open access)

X-Ray Powder Diffraction Study of Synthetic Palmierite, K{sub 2}Pb(SO{sub 4}){sub 2}

Palmierite (K{sub 2}Pb(SO{sub 4}){sub 2}) has been prepared via a chemical synthesis method. Intensity differences were observed when X-ray powder data from the newly synthesized compound were compared to the published powder diffraction card (PDF) 29-1015 for Palmierite. Investigation of these differences indicated the possibility of preferred orientation and/or chemical inhomogeneity affecting intensities, particularly those of the basal (00{ell}) reflections. Annealing of the Palmierite was found to reduce the effects of preferred orientation. Electron microprobe analysis confirmed K:Pb:S as 2:1:2 for the annealed Palmierite powder. Subsequent least-squares refinement and Rietveld analysis of the annealed powder showed peak intensities very close to that of a calculated Palmierite pattern (based on single crystal data), yet substantially higher than many of the PDF 29-1015 published intensities. Further investigation of peak intensity variation via calculated patterns suggested that the intensity discrepancies between the annealed sample and those found in PDF 29-1015 were potentially due to chemical variation in the K{sub 2}Pb(SO{sub 4}){sub 2} composition. X-ray powder diffraction and crystal data for Palmierite are reported for the annealed sample. Palmierite is Trigonal/Hexagonal with unit cell parameters a = 5.497(1){angstrom}, c = 20.864(2) {angstrom}, space group R-3m (166), and Z = 3.
Date: December 19, 2000
Creator: Tissot, Ralph G., Jr.; Rodriguez, Mark A.; Sipola, Diana L. & Voigt, James A.
Object Type: Article
System: The UNT Digital Library
BAGPIPE Containment Data and Phenomenology Report (open access)

BAGPIPE Containment Data and Phenomenology Report

The BAGPIPE sub-critical experiment was executed on September 26, 1998, at about 13:07 hours. A steel and fibercrete containment barrier had been built at the entrance to the U1a.101b drift at the Nevada Test Site to form the BAGPIPE zero-room. The invert of the zero-room was covered with concrete and the ribs and back were covered with about 15 cm of fibercrete. The face was left uncovered to facilitate gas bleed-off into the alluvial formation. The volume of the room was approximately 3894 ft{sup 3}. Four small experimental packages were detonated. The LLNL containment goal for the BAGPIPE experiment was to confine all special nuclear material (SNM) to the zero-room and the alluvium surrounding the zero-room. The experiment and containment objectives are discussed more fully in the BAGPIPE Containment Prospectus and the associated addendum. Alpha-particle radiation detectors outside the BAGPIPE zero-room remained at pre-shot background levels after the experiment. A large number of swipes were taken around the BAGPIPE primary containment barrier and in the diagnostics room. No evidence that any SNM was released into the tunnel complex was found and the BAGPIPE containment was considered successful.
Date: October 19, 2000
Creator: Burkhard, N. R.; Heinle, R. A. & Stubbs, T. F.
Object Type: Report
System: The UNT Digital Library
Buildings for the 21st Century Newsletter, Fall 2000 (open access)

Buildings for the 21st Century Newsletter, Fall 2000

This issue of Buildings for the 21st Century, a quarterly newsletter on the DOE building programs and technology, highlights the new high-performance visitor center at Zion National Park, Maryland's new Clean Energy Incentive Act, the Ohio State Weatherization Program, the Rebuild America Program and Native American communities joining forces, and Energy Star{reg_sign} clothes washers.
Date: October 19, 2000
Creator: Tromly, K.
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library
As-Built Verification Plan Spent Nuclear Fuel Canister Storage Building MCO Handling Machine (open access)

As-Built Verification Plan Spent Nuclear Fuel Canister Storage Building MCO Handling Machine

This as-built verification plan outlines the methodology and responsibilities that will be implemented during the as-built field verification activity for the Canister Storage Building (CSB) MCO HANDLING MACHINE (MHM). This as-built verification plan covers THE ELECTRICAL PORTION of the CONSTRUCTION PERFORMED BY POWER CITY UNDER CONTRACT TO MOWAT. The as-built verifications will be performed in accordance Administrative Procedure AP 6-012-00, Spent Nuclear Fuel Project As-Built Verification Plan Development Process, revision I. The results of the verification walkdown will be documented in a verification walkdown completion package, approved by the Design Authority (DA), and maintained in the CSB project files.
Date: October 19, 2000
Creator: SWENSON, C.E.
Object Type: Report
System: The UNT Digital Library
Computational Biology and High Performance Computing 2000 (open access)

Computational Biology and High Performance Computing 2000

The pace of extraordinary advances in molecular biology has accelerated in the past decade due in large part to discoveries coming from genome projects on human and model organisms. The advances in the genome project so far, happening well ahead of schedule and under budget, have exceeded any dreams by its protagonists, let alone formal expectations. Biologists expect the next phase of the genome project to be even more startling in terms of dramatic breakthroughs in our understanding of human biology, the biology of health and of disease. Only today can biologists begin to envision the necessary experimental, computational and theoretical steps necessary to exploit genome sequence information for its medical impact, its contribution to biotechnology and economic competitiveness, and its ultimate contribution to environmental quality. High performance computing has become one of the critical enabling technologies, which will help to translate this vision of future advances in biology into reality. Biologists are increasingly becoming aware of the potential of high performance computing. The goal of this tutorial is to introduce the exciting new developments in computational biology and genomics to the high performance computing community.
Date: October 19, 2000
Creator: Simon, Horst D.; Zorn, Manfred D.; Spengler, Sylvia J.; Shoichet, Brian K.; Stewart, Craig; Dubchak, Inna L. et al.
Object Type: Article
System: The UNT Digital Library
Concoa SCHe Pressure Regulators and Reotemp Pressure Gauge (SCHe Tank Outlet) (open access)

Concoa SCHe Pressure Regulators and Reotemp Pressure Gauge (SCHe Tank Outlet)

None
Date: October 19, 2000
Creator: Miska, C. R.
Object Type: Report
System: The UNT Digital Library
Effective Model Calibration of the Geologically Complex Death Valley Regional Ground-Water Flow System, Nevada and California (open access)

Effective Model Calibration of the Geologically Complex Death Valley Regional Ground-Water Flow System, Nevada and California

A numerical ground-water flow model is being constructed for the Death Valley regional ground-water system, an area that encompasses approximately 80,000 km{sup 2} in southern Nevada and southeastern California. Effective construction and calibration of the regional-scale steady-state flow model, developed using MODFLOW-2000, is dependent upon integration of hydrogeologic data and parameter-estimation techniques. A three-dimensional hydrogeologic-framework model of the region was initially constructed to provide a conceptual model of the geometry, composition, and hydraulic properties of the materials that control the regional ground-water flow system. This framework was resampled at the scale of the flow model to define the hydrogeologic units present in each of the 15 flow-model layers. In addition, there are non-traditional types of geologic data in the hydrogeologic-framework model that are used during flow-model calibration. For each hydrogeologic unit, the spatial distribution of geologic features important to the hydrologic system is defined. The volumetric cells can be populated by various hydrogeologic data such as the hydrogeologic unit, lithology, hydraulic conductivity, faulting, tectonic features, stratigraphic or lithologic facies, porosity, and derivative data calculated from these attributes. The approach for using this arsenal of geologic data is dependent on utilizing parameter-estimation techniques available within MODFLOW-2000. The principle of parsimony is …
Date: October 19, 2000
Creator: O'Brien, G. M.; D'Agnese, F. A.; Faunt, C. C. & Belcher, W. R.
Object Type: Report
System: The UNT Digital Library
Facility Relocation: NRC Based Its Decision to Move Its Technical Training Center on Perceived Benefits--Not Costs (open access)

Facility Relocation: NRC Based Its Decision to Move Its Technical Training Center on Perceived Benefits--Not Costs

A letter report issued by the General Accounting Office with an abstract that begins "The Nuclear Regulatory Commission (NRC) has decided to move its technical training center from Chattanooga, Tennessee, to near its headquarters in Rockville, Maryland. The relocation is intended to improve the effectiveness and efficiency of the agency's operations. The center provides diverse training curricula on such topics as nuclear power plant technology augmented by training on simulators, risk assessment, radiation protection, and regulatory skills. NRC used a reasonable methodology to determine the costs of relocating its facility. It considered costs related to staff salaries, travel costs for center participants, and lease payments. However, NRC used several assumptions that, if changed, would affect the cost of the move. For example, a change in the number of staff who would relocate would have an impact on costs. According to NRC, the objective of the move was not to minimize the cost of operating the center but rather to improve the effectiveness and efficiency of the agency's operations. NRC believes that the move would yield many benefits, including greater access to training facilities by its headquarters staff and frequent use of simulators in investigations. NRC needs to resolve several issues …
Date: October 19, 2000
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
HYDROLOGIC CHARACTERISTICS OF FAULTS AT YUCCA MOUNTAIN, NEVADA (open access)

HYDROLOGIC CHARACTERISTICS OF FAULTS AT YUCCA MOUNTAIN, NEVADA

Yucca Mountain comprises a series of north-trending ridges composed of tuffs within the southwest Nevada volcanic field, 120 km northwest of Las Vegas, Nevada. These ridges are formed of east-dipping blocks of interbedded welded and nonwelded tuff that are offset along steep, mostly west-dipping faults that have tens to hundreds of meters of vertical separation. Yucca Mountain is currently under study as a potential site for underground storage of high-level radioactive waste, with the principle goal being the safe isolation of the waste from the accessible environment. To this end, an understanding of the behavior of ground-water flow through the mountain in the unsaturated zone and beneath the mountain in the saturated zone is critical. The percolation of water through the mountain and into the ground-water flow system beneath the potential repository site is predicated on: (1) the amount of water available at the surface as a result of the climatic conditions, (2) the hydrogeologic characteristics of the volcanic strata that compose the mountain. and (3) the hydrogeologic characteristics of the structures, particularly fault zones and fracture networks, that disrupt these strata. This paper addresses the hydrogeologic characteristics of the fault zones at Yucca Mountain, focusing primarily on the central …
Date: October 19, 2000
Creator: Dickerson, Robert P.
Object Type: Report
System: The UNT Digital Library
Individuals with Disabilities Education Act: Services in Private Schools under P.L. 105-17 (open access)

Individuals with Disabilities Education Act: Services in Private Schools under P.L. 105-17

None
Date: October 19, 2000
Creator: Jones, Nancy Lee
Object Type: Report
System: The UNT Digital Library
Internet Pharmacies: Adding Disclosure Requirements Would Aid State and Federal Oversight (open access)

Internet Pharmacies: Adding Disclosure Requirements Would Aid State and Federal Oversight

A letter report issued by the General Accounting Office with an abstract that begins "The first Internet pharmacies began online service in early 1999. Public health officials are concerned about Internet pharmacies that do not adhere to state licensing requirements and standards. Public officials are also concerned about the validity of prescriptions and international drugs that are not approved in the United States being sent by mail. The unique qualities of the Internet pose new challenges for enforcing state pharmacy and medical practice laws because they allow pharmacies and physicians to reach consumers across state and international borders and remain anonymous. Congress is considering legislation to strengthen oversight of Internet pharmacies."
Date: October 19, 2000
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
Major Tax Issues in the 106th Congress: A Summary (open access)

Major Tax Issues in the 106th Congress: A Summary

Taxes have been a major focus of congressional attention during the first half of 2000. In part, Congress has returned to many of the issues it addressed last year. In August, 1999, Congress passed a set of tax cuts with the Taxpayer Refund and Relief Act (H.R. 2488; TRRA). However, President Clinton vetoed the bill, arguing that the cuts were too large (an estimated $792 billion over 10 years), would drain funds from Social Security surpluses, and would force reductions in domestic spending. Early in 2000, Congress signaled its intention of revisiting tax cuts with passage on April 13 of a fiscal year (FY) 2001 budget resolution (H.Con.Res. 290) calling for a 5-year tax cut of $175 billion.
Date: October 19, 2000
Creator: Library of Congress. Congressional Research Service. Government and Fiance Division.
Object Type: Report
System: The UNT Digital Library
Nuclear fuel considerations for the 21st century. (open access)

Nuclear fuel considerations for the 21st century.

None
Date: October 19, 2000
Creator: Walters, L. C.
Object Type: Article
System: The UNT Digital Library