National Forests: Funding the Sawtooth National Recreation Area (open access)

National Forests: Funding the Sawtooth National Recreation Area

A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on the Sawtooth National Recreation Area's (SNRA) funding, its accomplishments and unmet needs, and on agency actions that have adverse impacts on the area, focusing on: (1) the funds allocated to the SNRA for fiscal years 1993 through 1997; (2) spending for fiscal years 1993 through 1997 to enhance recreation, to preserve conservation values, such as fish and wildlife, and to manage commodity programs, such as grazing, and the accomplishments and unmet needs in these areas; (3) the funds not allocated or the funds allocated and then taken back from the Recreation Area for fiscal years 1993 through 1997 and what was done with those funds; and (4) some examples of potentially adverse effects of how the Recreation Area is managed on individuals, companies, and communities economically dependent on the area."
Date: February 11, 1999
Creator: United States. General Accounting Office.
System: The UNT Digital Library
Customs Service Modernization: Ineffective Software Development Processes Increase Customs System Development Risks (open access)

Customs Service Modernization: Ineffective Software Development Processes Increase Customs System Development Risks

A chapter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the Customs Service's software development maturity and improvement activities, focusing on: (1) the maturity of Customs' software development processes; and (2) whether Customs has an effective software process improvement program."
Date: February 11, 1999
Creator: United States. General Accounting Office.
System: The UNT Digital Library
Waste drum gas generation sampling program at Rocky Flats during FY 1988 (open access)

Waste drum gas generation sampling program at Rocky Flats during FY 1988

Rocky Flats Plant Transuranic Waste Drums were sampled for gas composition. Combustibles, plastics, Raschig rings, solidified organic sludge, and solidified inorganic sludge transuranic waste forms were sampled. Plastic bag material and waste samples were also taken from some solidified sludge waste drums. A vacuum system was used to sample each layer of containment inside a waste drum, including individual waste bags. G values (gas generation) were calculated for the waste drums. Analytical results indicate that very low concentrations of potentially flammable or corrosive gas mixtures will be found in vented drums. G(H{sub 2}) was usually below 1.6, while G(Total) was below 4.0. Hydrogen permeability tests on different types of plastic waste bags used at Rocky Flats were also conducted. Polyvinylchloride was slightly more permeable to hydrogen than polyethylene for new or creased material. Permeability of aged material to hydrogen was slightly higher than for new material. Solidified organic and inorganic sludges were sampled for volatile organics. The analytical results from two drums of solidified organic sludges showed concentrations were above detection limits for four of the 36 volatile organics analyzed. The analytical results for four of the five solidified inorganic sludges show that concentrations were below detection limits for all …
Date: February 11, 1991
Creator: Roggenthen, D. K.; McFeeters, T. L. & Nieweg, R. G.
System: The UNT Digital Library
An ESME update (v. 7. 2) (open access)

An ESME update (v. 7. 2)

The program ESME for modeling the longitudinal degree of freedom of beam dynamics in proton synchrotrons was described in considerable detail in User's Guide to ESME v. 7.1'' distributed about a year ago. This note corrects minor errors and omissions in the User's Guide, discusses bugs and crochets, notes fixes, and reports a few enhancements. Current work and plans are sketched. This note should be adequate to update the User's Guide. 8 refs.
Date: February 11, 1991
Creator: MacLachlan, J.A.
System: The UNT Digital Library
K-edge densitometer (KED) (open access)

K-edge densitometer (KED)

In 1979, a K-edge densitometer (KED) was installed by the Safeguards Assay group from Los Alamos National Laboratory in the PNC reprocessing plant at Tokai-mura, Japan. It uses an active nondestructive assay technique, KED, to measure the plutonium concentration of the product solution. The measurement uncertainty of an assay depends on the count time chosen, but can be 0.5% or better. The computer hardware and software were upgraded in 1992. This manual describes the operation of the instrument, with an emphasis on the user interface to the software.
Date: February 11, 1993
Creator: Sprinkle, J. K. & Hansen, W. J.
System: The UNT Digital Library
Silicon crystal under bending (open access)

Silicon crystal under bending

The mechanical behavior of a silicon crystal under bending is investigated. For a crystal of length 30 mm and thickness 3 mm, to achieve the specified bend angle of 0.64 mrad, the appropriate angle of the aluminum punches is 0.96 mrad.
Date: February 11, 1993
Creator: Tang, Z.
System: The UNT Digital Library
Silicon crystal under bending (open access)

Silicon crystal under bending

The mechanical behavior of a silicon crystal under bending is investigated. For a crystal of length 30 mm and thickness 3 mm, to achieve the specified bend angle of 0.64 mrad, the appropriate angle of the aluminum punches is 0.96 mrad.
Date: February 11, 1993
Creator: Tang, Z.
System: The UNT Digital Library
Flammable Gas Detection for the D-Zero Gas System (open access)

Flammable Gas Detection for the D-Zero Gas System

The use of flammable gas and high voltage in detector systems is common in many experiments at Fermilab. To mitigate the hazards associated with these systems, Fermilab Engineering Standard SD-45B (Ref. 1) was adopted. Since this note is meant to be a guide and not a mandatory standard, each experiment is reviewed for compliance with SD-45B by the flammable gas safety subcommittee. Currently, there are only two types of flammable gas in use, ethane (Appendix A) and methane (Appendix B). The worst flammable-gas case is C2H6 (ethane), which has an estimated flow rate that is 73% of the CH4 (methane) flow but a heat of combustion (in kcal/g-mole) that is 173% of that of methane. In the worst case, if ethane were to spew through its restricting orifice into its gas line at 0 psig and then through a catastrophic leak into Room 215 (TRD) or Room 511 (CDC/FDCNTX), the time that would be required to build up a greater than Class 1 inventory (0.4kg H2 equivalent) would be 5.2 hours (Ref. 2). Therefore a worst-case flammable gas leak would have to go undetected for over 5 hours in order to transform a either mixing room to an environment with …
Date: February 11, 1991
Creator: Spires, L. D. & Foglesong, J.
System: The UNT Digital Library
Development of advanced NO{sub x} control concepts for coal-fired utility boiler. Quarterly technical progress report No. 7, April 1, 1992--June 30, 1992 (open access)

Development of advanced NO{sub x} control concepts for coal-fired utility boiler. Quarterly technical progress report No. 7, April 1, 1992--June 30, 1992

Hybrid technologies for the reduction of NO{sub x} emissions from coal-fired utility boilers have shown the potential to offer greater levels of NO{sub x} control than the sum of the individual technologies, leading to more cost effective emissions control strategies. Energy and Environmental Research Corporation (EER) has developed a hybrid NO{sub x} control strategy involving two proprietary concepts which has the potential to meet the US Department of Energy`s NO{sub x} reduction goal at a significant reduction in cost compared to existing technology. The process has been named CombiNO{sub x}. CombiNO{sub x} is an integration of three technologies: modified reburning, promoted selective noncatalytic reduction (SNCR) and methanol injection. These technologies are combined to achieve high levels of NO{sub x} emission reduction from coal-fired power plants equipped with S0{sub x} scrubbers. The first two steps, modified reburning and promoted SNCR are linked. It has been shown that performance of the SNCR agent is dependent upon local oxidation of CO. Reburning is used to generate the optimum amount of CO to promote the SNCR agent. Approximately 10 percent reburning is required, this represents half of that required for conventional reburning. If the reburn fuel is natural gas, the combination of reburning and …
Date: February 11, 1993
Creator: Evans, A.; Pont, J. N.; England, G. & Seeker, W. R.
System: The UNT Digital Library
K-edge densitometer (KED). User manual (open access)

K-edge densitometer (KED). User manual

In 1979, a K-edge densitometer (KED) was installed by the Safeguards Assay group from Los Alamos National Laboratory in the PNC reprocessing plant at Tokai-mura, Japan. It uses an active nondestructive assay technique, KED, to measure the plutonium concentration of the product solution. The measurement uncertainty of an assay depends on the count time chosen, but can be 0.5% or better. The computer hardware and software were upgraded in 1992. This manual describes the operation of the instrument, with an emphasis on the user interface to the software.
Date: February 11, 1993
Creator: Sprinkle, J. K. & Hansen, W. J.
System: The UNT Digital Library
SDC preshower depth and weighting factor using hanging file data (open access)

SDC preshower depth and weighting factor using hanging file data

Often inert material exists in front of a calorimeter. If an electromagnetic (EM) shower initiates in this material, and energy is not sampled by the calorimeter, then energy resolution will be degraded. It is crucial to minimize the amount of inert material. Algorithms using a separate readout of the energy early in the shower (a ``preshower`` detector) can also be used to alleviate the reduced performance. This problem has previously been studied using CDF test beam data. In addition, an EGS simulation was used to look at the methods of using the preshower (PS) readout to reduce the energy error.
Date: February 11, 1993
Creator: Green, D.
System: The UNT Digital Library
The kinetic tandem concept: theory and computer simulations of the potential barriers (open access)

The kinetic tandem concept: theory and computer simulations of the potential barriers

The Kinetic Tandem fusion plasma confinement concept is a member of the class of open magnetic confinement systems whose magnetic topology is that of a tube of magnetic flux open at both ends. In open-ended systems the central problem is that of limiting the rate of plasma losses out the ends. In a conventional tandem mirror system end-plugging is accomplished by the generation of positive potential barriers within special short mirror cells located at each end of a long central confinement cell. The kinetic tandem concept accomplishes the same end result by employing dynamic effects, but without the necessity of special end cells. The field employed in the kinetic tandem is a simple axially symmetric solenoidal field whose intensity tapers to low values at the ends. Since the field line curvature is everywhere positive such a field is stabilizing for MHD interchange modes. Into each end are injected ion beams that are aimed nearly parallel to the field line direction. The ions from these beams then are radially compressed, stopped, and reflected back by magnetic mirror action in climbing up the magnetic gradient. In this way ion density peaks are formed between which the plasma is to be confined. As …
Date: February 11, 1999
Creator: Byers, J A & Post, R F
System: The UNT Digital Library
Parametric Instabilities in Laser/Matter Interaction: From Noise Levels to Relativistic Regimes (open access)

Parametric Instabilities in Laser/Matter Interaction: From Noise Levels to Relativistic Regimes

The purpose of this LDRD was the study of parametric instabilities on a laser-produced plasma, addressing crucial issues affecting the coupling between the laser and the plasma. We have made very good progress during these three years, in advancing our understanding in many different fronts. Progress was made in both theoretical and experimental areas. The coupling of high-power laser light to a plasma through scattering instabilities is still one of the most complex processes in laser-plasma interaction physics. In spite of the relevance of these parametric processes to inertial confinement fusion (ICF) and all other situations where a high-power laser beam couples to a plasma, many aspects of the interaction remain unexplained, even after many years of intensive experimental and theoretical efforts. Important instabilities under study are stimulated Brillouin scattering (SBS), stimulated Raman scattering (SRS), and the Langmuir decay instability (LDI). The study of these instabilities is further complicated by the competition and interplay between them, and, in the case of ICF, by the presence of multiple overlapping interaction beams. Stimulated Brillouin scattering consists of the decay of the incident electromagnetic (EM) wave into a scattered EM wave and an ion acoustic wave (IAW). Similarly, SRS consists of the decay …
Date: February 11, 1999
Creator: Baldis, H. A.; Kruer, W. L. & Labaune, C. L.
System: The UNT Digital Library
Development of advanced NO[sub x] control concepts for coal-fired utility boiler (open access)

Development of advanced NO[sub x] control concepts for coal-fired utility boiler

Hybrid technologies for the reduction of NO[sub x] emissions from coal-fired utility boilers have shown the potential to offer greater levels of NO[sub x] control than the sum of the individual technologies, leading to more cost effective emissions control strategies. Energy and Environmental Research Corporation (EER) has developed a hybrid NO[sub x] control strategy involving two proprietary concepts which has the potential to meet the US Department of Energy's NO[sub x] reduction goal at a significant reduction in cost compared to existing technology. The process has been named CombiNO[sub x]. CombiNO[sub x] is an integration of three technologies: modified reburning, promoted selective noncatalytic reduction (SNCR) and methanol injection. These technologies are combined to achieve high levels of NO[sub x] emission reduction from coal-fired power plants equipped with S0[sub x] scrubbers. The first two steps, modified reburning and promoted SNCR are linked. It has been shown that performance of the SNCR agent is dependent upon local oxidation of CO. Reburning is used to generate the optimum amount of CO to promote the SNCR agent. Approximately 10 percent reburning is required, this represents half of that required for conventional reburning. If the reburn fuel is natural gas, the combination of reburning and …
Date: February 11, 1993
Creator: Evans, A.; Pont, J. N.; England, G. & Seeker, W. R.
System: The UNT Digital Library
SDC preshower depth and weighting factor using hanging file data (open access)

SDC preshower depth and weighting factor using hanging file data

Often inert material exists in front of a calorimeter. If an electromagnetic (EM) shower initiates in this material, and energy is not sampled by the calorimeter, then energy resolution will be degraded. It is crucial to minimize the amount of inert material. Algorithms using a separate readout of the energy early in the shower (a preshower'' detector) can also be used to alleviate the reduced performance. This problem has previously been studied using CDF test beam data. In addition, an EGS simulation was used to look at the methods of using the preshower (PS) readout to reduce the energy error.
Date: February 11, 1993
Creator: Green, D.
System: The UNT Digital Library
Railroad Occupational Disability: Conflict Over Standards (open access)

Railroad Occupational Disability: Conflict Over Standards

None
Date: February 11, 1997
Creator: unknown
System: The UNT Digital Library
Earmarks and Limitations in Appropriations Bills (open access)

Earmarks and Limitations in Appropriations Bills

An annual appropriations act is generally made up of separate paragraphs, each of which provides funding for specific agencies and programs. Generally, each paragraph corresponds to a unique account and provides appropriations for multiple projects and purposes as a single lump sum. Earmarks and limitations are two devices regularly used in annual appropriations acts to restrict, or more precisely direct, the availability of funds for specific projects or purposes of an account. Sometimes an earmark or a limitation may generate more interest or controversy than the total appropriation.
Date: February 11, 1999
Creator: Streeter, Sandy
System: The UNT Digital Library
Appropriations Bills: What are "General Provisions"? (open access)

Appropriations Bills: What are "General Provisions"?

An annual appropriations act generally consists of two parts – paragraphs providing funding, and general provisions focusing on non-funding as well as funding issues. Discussed on this brief fact sheet are what is found in general provisions of appropriations bills.
Date: February 11, 1999
Creator: Streeter, Sandy
System: The UNT Digital Library
The Budget Enforcement Act: Its Operation Under a Budget Surplus (open access)

The Budget Enforcement Act: Its Operation Under a Budget Surplus

The Budget Enforcement Act was enacted in 1990 in an effort to control future budgetary actions. It did this through two separate, but related, mechanisms: limits on discretionary spending, and the pay-as-you-go process to require that any legislative action on direct spending or revenues which would increase the deficit be offset. These procedures currently would apply through FY2002 (for legislation enacted before October 1, 2002, for measures affecting direct spending or revenues), regardless of whether the budget is in deficit or surplus.
Date: February 11, 1998
Creator: Saturno, James V.
System: The UNT Digital Library
Optimization of etching and reading procedures for the Autoscan 60 track etch system (open access)

Optimization of etching and reading procedures for the Autoscan 60 track etch system

The Los Alamos National Laboratory is charged with measuring the occupational exposure to radiological workers and contractors throughout the Laboratory, which includes many different sites with multiple and varied radiation fields. Of concern here are the high energy neutrons such as those generated during accelerator operations at Los Alamos Neutron Science Center (LANSCE). In 1993, the Los Alamos National Laboratory purchased an Autoscan 60 automated reader for use with chemically etched CR39 detectors. The dosimeter design employed at LANL uses a plastic, hemispherical case, encompassing a polystyrene pyramidal detector holder. The pyramidal holder supports three detectors at a 35{degree} angle. Averaging the results of the three detectors minimizes the angular dependence normally associated with a planar dosimeter. The Autoscan 60 is an automated reading system for use with CR39 chemical etch detectors. The detectors are immersed in an etch solution to enhance the visibility of the damage sites caused by recoil proton impact with the hydrogen atoms in the detector. The authors decided to increase the etch time from six hours to 15 hours, while retaining the 70 C temperature. The reason for the change in the etch is to enhance the sensitivity and precision of the CR39 detector as …
Date: February 11, 1997
Creator: McKeever, R.; Devine, R. & Coennen, C.
System: The UNT Digital Library
Signal-to-noise ratio of intensity interferometry experiments with highly asymmetric x-ray sources (open access)

Signal-to-noise ratio of intensity interferometry experiments with highly asymmetric x-ray sources

We discuss the signal-to-noise ratio of an intensity interferometry experiment for a highly asymmetric x-ray source using different aperture shapes in front of the photodetectors. It is argued that, under ideal conditions using noiseless detectors and electronics, the use of slit-shaped apertures, whose widths are smaller but whose lengths are much greater than the transverse coherence widths of the beam in the corresponding directions, provides no signal-to-noise advantage over the use of pinhole apertures equal to or smaller than the coherence area. As with pinholes, the signal-to-noise ratio is determined solely by the count degeneracy parameter and the degree of coherence of the beam. This contrasts with the signal-to-noise ratio enhancement achievable using slit-shaped apertures with an asymmetric source in a Young`s experiment.
Date: February 11, 1997
Creator: Feng, Y.P.; McNulty, I.; Xu, Z. & Gluskin, E.
System: The UNT Digital Library
Radioactive air emissions notice of construction, use of a portable exhauster on 244-AR vault (open access)

Radioactive air emissions notice of construction, use of a portable exhauster on 244-AR vault

This document serves as a notice of construction (NOC), pursuant to the requirements of Washington Administrative Code (WAC) 246-247- 060, and as a request for approval to construct pursuant to 40 Code of Federal Regulations (CFR) 61.96, for the use of a portable exhauster at the 244-AR Vault during transfers or movement of radioactive waste as part of pumping of secondary containment, tank stabilization/pumping, and other activities (i.e., transfer or pumping of radioactive waste using established procedures, entries for maintenance and inspections) within the 244-AR Vault.
Date: February 11, 1997
Creator: Allen, C.P. & Fluor Daniel Hanford
System: The UNT Digital Library
Risk Analysis and Decision-Making Software Package (1997 Version) User Manual (open access)

Risk Analysis and Decision-Making Software Package (1997 Version) User Manual

This manual provides instructions for using the U.S. Department of Energy's (DOE) risk analysis and decision making software (1997 version) developed at BDM Petroleum Technologies by BDM-Oklahoma, Inc. for DOE, under contract No. DE-AC22-94PC91OO8. This software provides petroleum producers with a simple, handy tool for exploration and production risk analysis and decision-making. It collects useful risk analysis tools in one package so that users do not have to use several programs separately. The software is simple to use, but still provides many functions. The 1997 version of the software package includes the following tools: (1) Investment risk (Gambler's ruin) analysis; (2) Monte Carlo simulation; (3) Best fit for distribution functions; (4) Sample and rank correlation; (5) Enhanced oil recovery method screening; and (6) artificial neural network. This software package is subject to change. Suggestions and comments from users are welcome and will be considered for future modifications and enhancements of the software. Please check the opening screen of the software for the current contact information. In the future, more tools will be added to this software package. This manual includes instructions on how to use the software but does not attempt to fully explain the theory and algorithms used to …
Date: February 11, 1999
Creator: Chung, F. T. H.
System: The UNT Digital Library
Operational test report for 241-AN primary tank inlet control stations (open access)

Operational test report for 241-AN primary tank inlet control stations

This is the operational test report for 241-AN Tank Farm primary ventilation system inlet air filter and control stations, following their installation in the field and prior to their acceptance for beneficial use.
Date: February 11, 1997
Creator: Tuck, J.A., Fluor Daniel Hanford
System: The UNT Digital Library