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AMBIENT PM2.5 SAMPLING AND ANALYSIS
This is the third semi-annual technical progress report summarizing observations and tentative conclusions drawn from evaluations of the data captured to date from the operation of the ambient PM{sub 2.5} speciation sites in a geographical area encompassing southeastern Ohio, western Pennsylvania, and northwestern West Virginia. The overall goal of this program, called the Upper Ohio River Valley Project (UORVP), is to better understand the relationship between coal-based power system emissions and ambient air quality in the upper Ohio River Valley region through the collection of chemically resolved or speciated data. In order to provide a ''stand alone'' document, this report contains updated versions of Section 1 (Introduction) and Section 2 (Experimental) in their entirety from the first report.
Date:
April 30, 2001
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
America's Growing Current Account Deficit: Its Cause and What It Means for the Economy
This report discusses the reasons for the U.S. current account deficit, popularly known as the trade deficit, and which is on the rise.
Date:
April 19, 2001
Creator:
Labonte, Marc & Makinen, Gail
Object Type:
Report
System:
The UNT Digital Library
Ammonia Henry's Law Constants in SRS High Level Waste Pump Tanks
The High Level Waste Tank Farms store and process high-level liquid wastes from a number of sources including F- and H-Canyons. These wastes are made alkaline prior to transfer to the Tank Farm and are subject to acceptance based on their composition. These wastes may contain significant concentrations of ammonia from flushing of the process vessel vent system. The Authorization Basis for the Tank Farm limits ammonia concentrations in canyon receipts to control flammability in pump tanks and waste tanks. However, during flushing of the canyon process vessel vent systems, the current limits pose significant operational restrictions. It was originally thought that the current limits based on data obtained by Pacific Northwest National Laboratory (PNNL), on a Hanford salt solution might be overly conservative with respect to salt solutions normally found in SRS Pump Tanks. However, on investigation of the possible range of concentrations based on canyon transfer data, it was found that pump tank salt solution concentrations probably did not differ significantly from the salt solution tested by PNNL. This report documents the work performed as originally described in the task technical plan.
Date:
April 17, 2001
Creator:
Swingle, R.F.
Object Type:
Report
System:
The UNT Digital Library
Analysis of Data from a Downhole Oil/Water Separator Field Trial in East Texas
Downhole oil/water separator (DOWS) technology is available to separate oil from produced water at the bottom of an oil well. Produced water can be injected directly to a disposal formation rather than lifting it to the surface, treating it there, and reinjecting it. Because of a lack of detailed performance data on DOWS systems, the U.S. Department of Energy (DOE) provided funding to secure DOWS performance data. A large U.S. oil and gas operator offered to share its data with Argonne National Laboratory. This report summarizes data from the DOWS installation in eastern Texas.
Date:
April 19, 2001
Creator:
Veil, John A. & Layne, Arthur Langhus
Object Type:
Report
System:
The UNT Digital Library
Analysis of Forcing, Response, and Feedbacks in a Paleoclimate Modeling Experiment
It is often argued that paleoclimate studies are necessary to determine whether climate models and their predictions of future climate change can be trusted. An overall measure of the sensitivity of global mean surface temperature to a given radiative perturbation is provided by the global climate sensitivity parameter. In climate model experiments, this parameter appears to be moderately independent of the cause of the perturbation [see, for example, Hansen et al. (1997) and Hewitt and Mitchell (1997)], but it may differ from one model to the next by as much as a factor of three (IPCC, 1995). Moreover, there are some scientists who claim that all models are much more sensitive than the climate system itself (Lindzen, 1997). Thus it would be valuable to determine which models (if any) are consistent with the paleoclimate record and what factors are responsible for model differences in sensitivity. In an analysis of the Paleoclimate Modeling Intercomparison Project (PMIP) simulations of the Last Glacial Maximum (LGM) of 21,000 years ago, we have calculated how the ''forcing'' and feedbacks determine the climatic response. In the PMIP context, the ice sheet distribution is prescribed and the resulting increase in planetary albedo is the most important ''forcing'' …
Date:
April 11, 2001
Creator:
Taylor, K E; Hewitt, C D; Braconnot, P; Broccoli, A J; Doutriaux, C & Mitchell, J F B
Object Type:
Article
System:
The UNT Digital Library
Analysis of Measurement Uncertainties in the Nulling Test for Air Leakage From Residential Ducts.
An analysis of measurement uncertainties in a recently proposed method of measuring air leakage in residential duct systems has been carried out. The uncertainties in supply and return leakage rates are expressed in terms of the value of the envelope leakage flow coefficient and the uncertainties in measured pressures and air flow rates. Results of the analysis are compared with data published by two research groups.
Date:
April 1, 2001
Creator:
Andrews, J. W.
Object Type:
Report
System:
The UNT Digital Library
Analysis of Surface Leaching Processes in Vitrified High-Level Nuclear Wastes Using In-Situ Raman Imaging and Atomistic Modeling - Final Report
The in situ analysis of surface conditions of vitrified nuclear wastes can provide an important check of the burial status of radioactive objects without risk of radiation exposure. Raman spectroscopy was initially chosen as the most promising method for testing the surface conditions of glasses undergoing chemical corrosion, and was used extensively during the first year. However, it was determined that infrared reflection spectroscopy was better suited to this particular need and was used for the remaining two years to investigate the surface corrosion behavior of model silicate glasses for extension to nuclear waste glasses. The developed methodology is consistent with the known theory of optical propagation of dielectric media and uses the Kramers-Kronig formalism. The results show that it is possible to study the corrosion of glass by analyzing the glass surface using reflection fast Fourier infrared measurements and the newly developed ''dispersion analysis method.'' The data show how this analysis can be used to monitor the corrosion behavior of vitrified waste glasses over extended periods of storage.
Date:
April 24, 2001
Creator:
Simmons, Joseph H.
Object Type:
Report
System:
The UNT Digital Library
Analytical Chemistry Laboratory Progress Report for FY 2000
This report summarizes the activities of the Analytical Chemistry Laboratory (ACL) at Argonne National Laboratory (ANL) for Fiscal Year (FY) 2000 (October 1999 through September 2000). This annual progress report, which is the seventeenth in this series for the ACL, describes effort on continuing projects, work on new projects, and contributions of the ACL staff to various programs at ANL. The ACL operates within the ANL system as a full-cost-recovery service center, but it has a mission that includes a complementary research and development component: The Analytical Chemistry Laboratory will provide high-quality, cost-effective chemical analysis and related technical support to solve research problems of our clients--Argonne National Laboratory, the Department of Energy, and others--and will conduct world-class research and development in analytical chemistry and its applications. The ACL handles a wide range of analytical problems that reflects the diversity of research and development (R&D) work at ANL. Some routine or standard analyses are done, but the ACL operates more typically in a problem-solving mode in which development of methods is required or adaptation of techniques is needed to obtain useful analytical data. The ACL works with clients and commercial laboratories if a large number of routine analyses are required. Much …
Date:
April 3, 2001
Creator:
Green, D. W.; Boparai, A. S.; Bowers, D. L. & Graczyk, D. G.
Object Type:
Report
System:
The UNT Digital Library
S and FP Program: Frequently Asked Questions; EPAct Fleet Information and Regulations, State and Alternative Fuel Provider Program Fact Sheet
A question and answer session regarding all aspects of EPAct's State and Alternative Fuel Provider program, including compliance guidelines.
Date:
April 26, 2001
Creator:
Melendez, M.
Object Type:
Book
System:
The UNT Digital Library
S and FP Program Promotes Alternative Fuels to Cut Need for Foreign Oil: EPAct Fleet Information and Regulations, State and Alternative Fuel Provider Program Fact Sheet
A detailed description of the history of EPAct's State and Alternative Fuel Provider Program and what fleets need to do to comply to its regulations.
Date:
April 26, 2001
Creator:
Melendez, M. & White, H.
Object Type:
Book
System:
The UNT Digital Library
Animal Agriculture: Current Issues
A variety of animal agriculture issues, including low livestock prices, the impact of consolidation in the meat packing industry, trade, and the environmental impacts of large feedlots, generated interest in the 106th and 107th Congresses. This report addresses this issues in detail.
Date:
April 16, 2001
Creator:
Heykoop, Jerry & Segarra, Alejandro E.
Object Type:
Report
System:
The UNT Digital Library
Annual Birding & Nature Festivals of Texas: Spring 2001-2002
Annual guide listing festivals in the state of Texas that are related to birds or other wildlife, providing descriptions, dates, and contact information.
Date:
April 2001
Creator:
Texas. Parks and Wildlife Department.
Object Type:
Pamphlet
System:
The Portal to Texas History
Annual Radioactive Waste Tank Inspection Program - 2000
Aqueous radioactive wastes from Savannah River Site (SRS) separations and vitrification processes are contained in large underground carbon steel tanks. Inspections made during 2000 to evaluate these vessels and other waste handling facilities along with evaluations based on data from previous inspections are the subject of this report.
Date:
April 17, 2001
Creator:
Waltz, R. S. & West, W. R.
Object Type:
Report
System:
The UNT Digital Library
Annual Report 2000. Chemical Structure and Dynamics
This annual report describes the research and accomplishments of the Chemical Structure and Dynamics Program in the year 2000, one of six research programs at the William R. Wiley Environmental Molecular Sciences Laboratory (EMSL) - a multidisciplinary, national scientific user facility and research organization. The Chemical Structure and Dynamics (CS&D) program is meeting the need for a fundamental, molecular-level understanding by 1) extending the experimental characterization and theoretical description of chemical reactions to encompass the effects of condensed media and interfaces; 2) developing a multidisciplinary capability for describing interfacial chemical processes relevant to environmental chemistry; and 3) developing state-of-the-art research and analytical methods for characterizing complex materials of the types found in natural and contaminated systems.
Date:
April 15, 2001
Creator:
Colson, Steven D. & McDowell, Robin S.
Object Type:
Report
System:
The UNT Digital Library
Application of an Area-of-Review (AOR) Concept to the East Texas Field and Other Selected Texas Oilfields
The Underground Injection Control Regulations promulgated in 1980, under the Safe Drinking Water Act of 1974, require Area-of-Review (AOR) studies be conducted as part of the permitting process for newly drilled or converted Class II injection wells. Existing Class II injection wells operating at the time regulations became effective were excluded from the AOR requirement. The AOR is the area surrounding an injection well or wells defined by either the radial distance within which pressure in the injection zone may cause migration of the injection and/or formation fluid into an underground source of drinking water (USDW) or defined by a fixed radius of not less than one-fourth mile. In the method where injection pressure is used to define the AOR radial distance, the AOR is also known as the ''zone of endangering influence.''
Date:
April 19, 2001
Creator:
Warner, Don L.; Koederitz, Leonard F. & Laudon, Robert C.
Object Type:
Report
System:
The UNT Digital Library
Application of Gaseous Laser Targets and Optical Diagnostics to Study High Mach Number Unstable Plasma Flows
The information that can be obtained from current laser driven high Mach number (compressible) hydrodynamics experiments using solid targets and foams is limited by the need to use X-ray diagnostics. These do well at providing the shape of gross 2D structures which we model well, but are a long way from being able to reveal detailed information at the smaller spatial scales, or in 3D turbulent flows, where most of the modeling uncertainties exist. Remedying this is, and will continue to be, an ongoing research effort. An alternative approach that is not being considered is to use gaseous targets coupled with optical diagnostics. The lower density of gases compared to solids or foams means we can use much larger targets for a given laser energy. This should significantly improve spatial resolution, and the dynamic range of scales that are resolvable. In addition, it may be possible to adapt powerful techniques, such as LIF, used by the low Mach number (incompressible) fluid/gas community so that they work in the high Mach number plasma regime. This would provide much more detailed information on turbulent flows than could be achieved with current X-ray diagnostics. We propose a small research effort to use established …
Date:
April 1, 2001
Creator:
Edwards, J; MacKinnon, A & Robey, H
Object Type:
Report
System:
The UNT Digital Library
Application of the Recent ARF1 Calibration Measurements to the Pbar RF Curve Loading Console Application (P2)
The P2 console application (Antiproton Source RF Files) calculates frequency and voltage curves from a sequence of command statements input by the user. P2 initially calculates these curves in terms of the actual frequencies and voltages required on the RF cavity as a function of time. These curves are then converted to the appropriate low-level drive voltages that will cause the RF system high-level electronics to generate the required frequency and voltage ramps. The low-level drive ramps are then downloaded into CAMAC ramp cards. In order to convert the required cavity voltage and frequency into the correct drive voltages P2 uses a set of constants that determined from calibration measurements of the various Antiproton Source RF systems. These constants are editable from the P2 constants window. The P2 constants at the time of this writing are shown in Figure 1. The validity of these constants determines the extent to which P2 able to translate the user's commands into the actual voltages and frequencies that appear on the RF cavity. A comparison of the 4/18/2001 calibration of ARF1 with that presently assumed by P2 shows a large discrepancy in both the frequency constants and the voltage constants. This report documents the …
Date:
April 21, 2001
Creator:
Werkema, Steve
Object Type:
Report
System:
The UNT Digital Library
Applied techniques for high bandwidth data transfers across wide area networks
Large distributed systems such as Computational/Data Grids require large amounts of data to be co-located with the computing facilities for processing. Ensuring that the data is there in time for the computation in today's Internet is a massive problem. From our work developing a scalable distributed network cache, we have gained experience with techniques necessary to achieve high data throughput over high bandwidth Wide Area Networks (WAN). In this paper, we discuss several hardware and software design techniques and issues, and then describe their application to an implementation of an enhanced FTP protocol called GridFTP. We also describe results from two applications using these techniques, which were obtained at the Supercomputing 2000 conference.
Date:
April 30, 2001
Creator:
Lee, Jason; Gunter, Dan; Tierney, Brian; Allcock, Bill; Bester, Joe; Bresnahan, John et al.
Object Type:
Article
System:
The UNT Digital Library
Appropriations for FY2001: Foreign Operations, Export Financing, and Related Programs
Appropriations are one part of a complex federal budget process that includes budget resolutions, appropriations (regular, supplemental, and continuing) bills, rescissions, and budget reconciliation bills. This report is a guide to one of the 13 regular appropriations bills that Congress passes each year. It is designed to supplement the information provided by the House and Senate Foreign Operations Appropriations Subcommittees.
Date:
April 4, 2001
Creator:
Nowels, Larry
Object Type:
Report
System:
The UNT Digital Library
Appropriations for FY2001: Legislative Branch
Appropriations are one part of a complex federal budget process that includes budget resolutions, appropriations (regular, supplemental, and continuing) bills, rescissions, and budget reconciliation bills. This report is a guide to one of the 13 regular appropriations bills that Congress passes each year. It is designed to supplement the information provided by the House and Senate Appropriations Subcommittees on Legislative Branch Appropriations.
Date:
April 20, 2001
Creator:
Dwyer, Paul E.
Object Type:
Report
System:
The UNT Digital Library
Aquifer Transport of Th, U, Ra, and Rn In Solution and Colloids
The ability to safely store radioactive materials for long periods of time depends on our understanding of the conditions that mobilize the nuclei, which requires an understanding of the mechanisms of dissolution and transport in aquifers. The objective of this research was to gain an understanding of the dissolution and transport of naturally occurring uranium, thorium, and their radioactive daughter products in groundwater systems without using injected tracers or accidental contaminants. The study involved analyses of groundwater in and around the Brookhaven National Laboratory site and the water supply system. A theoretical model of continuous flow was developed considering chemical, physical, and geologic properties. This is the first model of water transport in the vadose zone and the groundwater table with water-rock interactions supplying insight into the problems of mobilization and precipitation. We derived clear theoretical predictions on U and Th behavior in groundwater. The combination of sound theory and good data was successful. Most of the variation in uranium isotopes was due to the original imprint of near-surface weathering and not to water-rock reactions at depth. It was shown that high radon content was not due to micropores in the minerals but a reflection of thorium precipitation on surfaces …
Date:
April 2, 2001
Creator:
Wasserburg, G. J.
Object Type:
Report
System:
The UNT Digital Library
Arbuckle Mountains
Photograph of a scene the Arbuckle Mountains.
Date:
April 9, 2001
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Arbuckle Mountains
Photograph of a scene the Arbuckle Mountains.
Date:
April 9, 2001
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Arbuckle Mountains
Photograph of a scene the Arbuckle Mountains.
Date:
April 9, 2001
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History