328 Matching Results

Results open in a new window/tab.

Government Auditing Standards: 2003 Revision (Superseded by GAO-07-162G) (open access)

Government Auditing Standards: 2003 Revision (Superseded by GAO-07-162G)

Guidance issued by the General Accounting Office with an abstract that begins "This publication has been superseded by GAO-07-162G, Government Auditing Standards: January 2007 Revision. This is the Government Auditing Standards 2003 revision. This document outlines standards that contain requirements for auditor reporting on internal control. The revision supersedes the 1994 revision."
Date: June 1, 2003
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
Environmentally Assisted Cracking in Light Water Reactors - Annual Report, January-December 2001. (open access)

Environmentally Assisted Cracking in Light Water Reactors - Annual Report, January-December 2001.

This report summarizes work performed by Argonne National Laboratory on fatigue and environmentally assisted cracking (EAC) in light water reactors (LWRs) from January to December 2001. Topics that have been investigated include (a) environmental effects on fatigue S-N behavior of austenitic stainless steels (SSs), (b) irradiation-assisted stress corrosion cracking (IASCC) of austenitic SSs, and (c) EAC of Alloy 600. The effects of key material and loading variables, such as strain amplitude, strain rate, temperature, dissolved oxygen (DO) level in water, and material heat treatment, on the fatigue lives of wrought and cast austenitic SSs in air and LWR environments have been evaluated. The mechanism of fatigue crack initiation in austenitic SSs in LWR environments has also been examined. The results indicate that the presence of a surface oxide film or difference in the characteristics of the oxide film has no effect on fatigue crack initiation in austenitic SSs in LWR environments. Slow-strain-rate tensile tests and post-test fractographic analyses were conducted on several model SS alloys irradiated to {approx}2 x 10{sup 21} n {center_dot} cm{sup -2} (E > 1 MeV) ({approx}3 dpa) in He at 289 C in the Halden reactor. The results were used to determine the influence of alloying …
Date: June 1, 2003
Creator: Chopra, O. K.; Chung, H. M.; Clark, R. W.; Gruber, E. E; Hiller, R. W.; Shack, W. J. et al.
Object Type: Report
System: The UNT Digital Library
Industrial Heat Pumps for Steam and Fuel Savings: A BestPractices Steam Technical Brief (open access)

Industrial Heat Pumps for Steam and Fuel Savings: A BestPractices Steam Technical Brief

The purpose of this Steam Techcial Brief is to introduce heat-pump technology and its applicaiton in industrial processes.
Date: June 1, 2003
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Habitat Evaluation Procedures (HEP) Report, Pend Oreille Wetlands Wildlife II Project, Technical Report 2002. (open access)

Habitat Evaluation Procedures (HEP) Report, Pend Oreille Wetlands Wildlife II Project, Technical Report 2002.

In 2002, the Habitat Evaluation Procedure (HEP) was used to determine baseline habitat suitability on the Pend Oreille Wetlands Wildlife II Project, an acquisition completed by the Kalispel Tribe of Indians in 1997. Evaluation species and appropriate models include bald eagle, black-capped chickadee, Canada goose, mallard, and yellow warbler. Habitat Suitability Index (HSI) values were visually estimated and agreed upon by all HEP team members. The Pend Oreille Wetlands Wildlife II Project provides a total of 313.91 Habitat Units (HUs) for the species evaluated. Open water habitat provides 16.08 HUs for Canada goose and mallard. Shoreline and island habitat provide 7.36 HUs fore Canada goose and mallard. Wet meadow provides 117.62 HUs for Canada goose and mallard. Scrub-shrub wetlands provide 9.78 HUs for yellow warbler, mallard, and white-tailed deer. Deciduous forested wetlands provide 140.47 HUs for bald eagle, black-capped chickadee, mallard, and white-tailed deer. Conifer forest provides 22.60 HUs for bald eagle, black-capped chickadee, and white-tailed deer. The objective of using HEP at the Pend Oreille Wetlands Wildlife II Project and other protected properties is to document the quality and quantity of available habitat for selected wildlife species. In this way, HEP provides information on the relative value of the …
Date: June 1, 2003
Creator: Holmes, Darren
Object Type: Report
System: The UNT Digital Library
Closure Report for Corrective Action Unit 335: Area 6 Injection Well and Drain Pit, Nevada Test Site, Nevada (open access)

Closure Report for Corrective Action Unit 335: Area 6 Injection Well and Drain Pit, Nevada Test Site, Nevada

This Closure Report documents the activities undertaken to close Corrective Action Unit 335: Area 6 Injection Well and Drain Pit, according to the Federal Facility Agreement and Consent Order. Corrective Action Unit 335 was closed in accordance with the Nevada Division of Environmental Protection-approved Corrective Action Plan for Corrective Action Unit 335.
Date: June 1, 2003
Creator: United States. National Nuclear Security Administration. Nevada Site Office.
Object Type: Report
System: The UNT Digital Library
Acoustic Propagation in a Water-Filled Cylindrical Pipe (open access)

Acoustic Propagation in a Water-Filled Cylindrical Pipe

This study was concerned with the physics of the propagation of a tone burst of high frequency sound in a steel water-filled pipe. The choice of the pulse was rather arbitrary, so that this work in no way can be considered as recommending a particular pulse form. However, the MATLAB computer codes developed in this study are general enough to carry out studies of pulses of various forms. Also, it should be pointed out that the codes as written are quite time consuming. A computation of the complete field, including all 5995 modes, requires several hours on a desktop computer. The time required by such computations as these is a direct consequence of the bandwidths, frequencies and sample rates employed. No attempt was made to optimize these codes, and it is assumed that much can be done in this regard.
Date: June 1, 2003
Creator: Sullivan, E. J. & Candy, J. V.
Object Type: Report
System: The UNT Digital Library
Photovoltaic Module Thermal/Wind Performance: Long-Term Monitoring and Model Development for Energy Rating (open access)

Photovoltaic Module Thermal/Wind Performance: Long-Term Monitoring and Model Development for Energy Rating

In order to predict the energy production of photovoltaic (PV) modules, it is necessary to predict the module temperature as a function of ambient temperature, wind speed, wind direction, total irradiance, and relative humidity. This paper presents a mathematical model to predict the module temperature based on the field monitored real data of module temperature, ambient temperature, wind speed, wind direction and relative humidity.
Date: June 1, 2003
Creator: TamizhMani, G.; Ji, L.; Tang, Y.; Petacci, L. & Osterwald, C.
Object Type: Article
System: The UNT Digital Library
Advanced Simulation and Computing: A Summary Report to the Director's Review (open access)

Advanced Simulation and Computing: A Summary Report to the Director's Review

It has now been three years since the Advanced Simulation and Computing Program (ASCI), as managed by Defense and Nuclear Technologies (DNT) Directorate, has been reviewed by this Director's Review Committee (DRC). Since that time, there has been considerable progress for all components of the ASCI Program, and these developments will be highlighted in this document and in the presentations planned for June 9 and 10, 2003. There have also been some name changes. Today, the Program is called ''Advanced Simulation and Computing,'' Although it retains the familiar acronym ASCI, the initiative nature of the effort has given way to sustained services as an integral part of the Stockpile Stewardship Program (SSP). All computing efforts at LLNL and the other two Defense Program (DP) laboratories are funded and managed under ASCI. This includes the so-called legacy codes, which remain essential tools in stockpile stewardship. The contract between the Department of Energy (DOE) and the University of California (UC) specifies an independent appraisal of Directorate technical work and programmatic management. Such represents the work of this DNT Review Committee. Beginning this year, the Laboratory is implementing a new review system. This process was negotiated between UC, the National Nuclear Security Administration …
Date: June 1, 2003
Creator: McCoy, M G & Peck, T
Object Type: Report
System: The UNT Digital Library
Development of a Low-Dimensional Wind Turbine Inflow Turbulence Model: Second Quarterly Report; December 15, 2002--March 15, 2003 (open access)

Development of a Low-Dimensional Wind Turbine Inflow Turbulence Model: Second Quarterly Report; December 15, 2002--March 15, 2003

For the quarterly research period 15 Dec. 2002-15 Mar. 2003, researchers at the University of Wyoming in Laramie made progress in the first two Tasks listed under PHASE I of their research effort. Individual Cases99 data sets have been chosen for the initial data analysis, and investigations are underway to assess the ability of the Penn State/National Center for Atmospheric Research Mesoscale Modeling System Version 5 (MM5) to simulate fluxes.
Date: June 1, 2003
Creator: Naughton, J. W. & Lindberg, W. R.
Object Type: Report
System: The UNT Digital Library
FEMP Renewable Energy Overview (open access)

FEMP Renewable Energy Overview

This four-page overview describes how Federal agencies can contact the Department of Energy's Federal Energy Management Program (FEMP) to obtain assistance in acquiring renewable energy systems, renewable fuels, and renewable ("green") power for use in their facilities and vehicles. Renewable resources, technologies, and fuels are described, as well as Federal goals for using clean, sustainable renewable energy; the current goal is to supply 2.5% of the Federal Government's energy with renewable sources by 2005. Also included is a description of the resources and technologies themselves and associated benefits.
Date: June 1, 2003
Creator: unknown
Object Type: Text
System: The UNT Digital Library
Theoretical Aerodynamic Analyses of Six Airfoils for Use on Small Wind Turbines: July 11, 2002--October 31, 2002 (open access)

Theoretical Aerodynamic Analyses of Six Airfoils for Use on Small Wind Turbines: July 11, 2002--October 31, 2002

Theoretical analyses of six airfoils--the E 387, FX 63-137, S822, S834, SD2030, and SH3055--have been performed for Reynolds numbers from 0.10 x 106 to 1.00 x 106 using the Eppler Airfoil Design and Analysis Code and the XFOIL code. The results from both codes exhibit the typical Reynolds number and roughness effects. Comparisons of the results from the two codes generally show good agreement, particularly for Reynolds numbers greater than 0.10 x 106. The maximum lift coefficient predicted by the XFOIL code is about 0.2 higher, and the Reynolds number and roughness effects are larger. The magnitudes of the zero-lift angle and pitching-moment coefficients predicted by the Eppler code are greater.
Date: June 1, 2003
Creator: Somers, D. M. & Maughmer, M. D.
Object Type: Report
System: The UNT Digital Library
Small Wind Electric Systems: A Massachusetts Consumer's Guide (open access)

Small Wind Electric Systems: A Massachusetts Consumer's Guide

The purpose of the Small Wind Electric Systems Consumer's: A Massachusetts Consumer's Guide is to provide consumers with enough information to help them determine if a small wind electric system will work for them based on their wind resource, the type and size of their sites, and their economics. The cover of this guide contains a Massachusetts wind resource map and information about state incentives and contacts for more information.
Date: June 1, 2003
Creator: unknown
Object Type: Text
System: The UNT Digital Library
Correlation of Structural and Electronic Properties with Solar Cell Efficiency for Amorphous Silicon Deposited at Increasing Growth Rates (open access)

Correlation of Structural and Electronic Properties with Solar Cell Efficiency for Amorphous Silicon Deposited at Increasing Growth Rates

This paper details the effects of increasing the growth rate of hydrogenated amorphous silicon (a-Si:H), deposited by dc plasma chemical vapor deposition, on the structural and electronic properties of the material in comparison with the performance of solar cells incorporating such layers. The hydrogen content exhibits the strongest correlation with the solar cell efficiency. The defect density measured by two different techniques, correlate poorly but when measured by a third technique, correlates well. On the other hand, the Urbach tail slope correlated well when measured by two different techniques but poorly when measured by a third one.
Date: June 1, 2003
Creator: Ganguly, G.; Han, D.; Williamson, D. L.; Nelson, B. P. & Cohen, J. D.
Object Type: Article
System: The UNT Digital Library
Identification of Wind Turbine Response to Turbulent Inflow Structures: Preprint (open access)

Identification of Wind Turbine Response to Turbulent Inflow Structures: Preprint

The National Renewable Energy Laboratory conducted an experiment to obtain detailed wind measurements and corresponding wind turbine measurements in order to establish a causal relationship between coherent turbulent structures and wind turbine blade fatigue loads. Data were collected for one entire wind season from October 2000 to May 2001. During this period, the wind turbine operated under atmospheric conditions that support the formation of coherent turbulent structures 31% of the time. Using the equivalent fatigue load parameter as a measure of wind turbine blade fatigue and using statistical measures of the turbulent fluctuations of the wind, general correlation between the turbulence and the wind turbine response is shown. Direct correlation cannot be resolved with 10-minute statistics for several reasons. Multiple turbulent structures can exist within a 10-minute record, and the equivalent fatigue load parameter is essentially a 10-minute statistic that cannot estimate turbine response to individual turbulent structures. Large-magnitude turbulent fluctuations in the form of instantaneous Reynolds stresses do not necessarily correspond directly to large-magnitude blade root moment amplitudes. Thus, additional work must be done to quantify the negative turbine response and to correlate this response to turbulent inflow parameters over time scales less than 10 minutes.
Date: June 1, 2003
Creator: Hand, M. M.; Kelley, N. D. & Balas, M. J.
Object Type: Article
System: The UNT Digital Library
Creating a Public Web Database about High Performance (Green) Buildings: Preprint (open access)

Creating a Public Web Database about High Performance (Green) Buildings: Preprint

Preprint of conference paper about the DOEs High Performance Buildings Database to be presented at the ASHRAE Conference in Scotland in September 2003.
Date: June 1, 2003
Creator: Crawley, D. B.; Torcellini, P. & Malin, N.
Object Type: Article
System: The UNT Digital Library
Flame Arrester Evaluation for E-Diesel Fuel Tanks: September 3, 2002 - May 28, 2003 (open access)

Flame Arrester Evaluation for E-Diesel Fuel Tanks: September 3, 2002 - May 28, 2003

An evaluation of various flame arresters for use with E-Diesel fuel was conducted on four diesel fuel tanks selected to represent typical fuel tank and fill neck designs. Multiple flame arresters were tested on each fuel tank.
Date: June 1, 2003
Creator: Weyandt, N. & Janssens, M. L.
Object Type: Report
System: The UNT Digital Library
Estimating the Deformability and Strength of Rock Masses - In-Situ Tests, and Related Procedures (open access)

Estimating the Deformability and Strength of Rock Masses - In-Situ Tests, and Related Procedures

This report was prepared for presentation at the STRATCOM Advanced Concept Technology Demonstration (ACTD) meeting held in Albuquerque, New Mexico, May 21, 2003. It discusses the methods that can be used to estimate the mechanical properties of rock masses, such as deformability and strength. Special emphasis is put on the fact that rock mass properties are subject to an effect of scale, i.e. the properties measured on laboratory-scale samples are not representative of in-situ properties because of the presence of geologic discontinuities. This information is relevant to the planning of new field tests to assess the effects of explosions in the ground that are part of the on-going ACTD.
Date: June 1, 2003
Creator: Heuze, F E
Object Type: Report
System: The UNT Digital Library
Microphysical Properties of Single and Mixed-Phase Arctic Clouds Derived from AERI Observations (open access)

Microphysical Properties of Single and Mixed-Phase Arctic Clouds Derived from AERI Observations

A novel new approach to retrieve cloud microphysical properties from mixed-phase clouds is presented. This algorithm retrieves cloud optical depth, ice fraction, and the effective size of the water and ice particles from ground-based, high-resolution infrared radiance observations. The theoretical basis is that the absorption coefficient of ice is stronger than that of liquid water from 10-13 mm, whereas liquid water is more absorbing than ice from 16-25 um. However, due to strong absorption in the rotational water vapor absorption band, the 16-25 um spectral region becomes opaque for significant water vapor burdens (i.e., for precipitable water vapor amounts over approximately 1 cm). The Arctic is characterized by its dry and cold atmosphere, as well as a preponderance of mixed-phase clouds, and thus this approach is applicable to Arctic clouds. Since this approach uses infrared observations, cloud properties are retrieved at night and during the long polar wintertime period. The analysis of the cloud properties retrieved during a 7 month period during the Surface Heat Budget of the Arctic (SHEBA) experiment demonstrates many interesting features. These results show a dependence of the optical depth on cloud phase, differences in the mode radius of the water droplets in liquid-only and mid-phase …
Date: June 1, 2003
Creator: Turner, David D.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
NEG Coating at RHIC (open access)

NEG Coating at RHIC

N/A
Date: June 1, 2003
Creator: Zhang, S. Y.; Hseuh, H. C. & Roser, T.
Object Type: Report
System: The UNT Digital Library
Toxic Substance Control Act PCB/Radioactive Waste (open access)

Toxic Substance Control Act PCB/Radioactive Waste

None
Date: June 1, 2003
Creator: Becker, William & Leininger, Tim
Object Type: Report
System: The UNT Digital Library
South Fork Flathead Watershed Westslope Cutthroat Trout Conservation Program, Annual Report 2002. (open access)

South Fork Flathead Watershed Westslope Cutthroat Trout Conservation Program, Annual Report 2002.

In 1999, Montana Fish, Wildlife & Parks (MFWP) began a program aimed at conserving the genetically pure populations of westslope cutthroat trout in the South Fork Flathead River drainage. The objective of this program is to eliminate all of the exotic and hybrid trout that threaten the genetically pure westslope cutthroat populations in the South Fork Flathead. The exotic and hybrid trout populations occur in several headwater lakes and their outflow streams. In 2001 MFWP released a draft environmental assessment, pursuant to the Montana Environmental Policy Act (MEPA), that addressed the use of motorized equipment to deliver personnel and materials to some of these lakes in the Bob Marshall and Great Bear Wildernesses (Grisak 2001). After a 30-day public comment period, MFWP determined that the complexity of issues was too great and warranted a more detailed analysis. These issues included transportation options for personnel, equipment and materials, the use of motorized equipment in wilderness, fish removal methods, fish stocking, and the status and distribution of amphibian populations in the project area. Because the program also involves the U.S. Forest Service (USFS) and Bonneville Power Administration (BPA), the environmental analysis needs to comply with the National Environmental Policy Act (NEPA). In …
Date: June 1, 2003
Creator: Grisak, Grant & Marotz, Brian
Object Type: Report
System: The UNT Digital Library
Numerically Simulating the Hydrodynamic and Water Quality Environment for Migrating Salmon in the Lower Snake River, 2002-2003 Technical Report. (open access)

Numerically Simulating the Hydrodynamic and Water Quality Environment for Migrating Salmon in the Lower Snake River, 2002-2003 Technical Report.

Summer temperatures in the Lower Snake River can be altered by releasing cold waters that originate from deep depths within Dworshak Reservoir. These cold releases are used to lower temperatures in the Clearwater and Lower Snake Rivers and to improve hydrodynamic and water quality conditions for migrating aquatic species. This project monitored the complex three-dimensional hydrodynamic and thermal conditions at the Clearwater and Snake River confluence and the processes that led to stratification of Lower Granite Reservoir (LGR) during the late spring, summer, and fall of 2002. Hydrodynamic, water quality, and meteorological conditions around the reservoir were monitored at frequent intervals, and this effort is continuing in 2003. Monitoring of the reservoir is a multi-year endeavor, and this report spans only the first year of data collection. In addition to monitoring the LGR environment, a three-dimensional hydrodynamic and water quality model has been applied. This model uses field data as boundary conditions and has been applied to the entire 2002 field season. Numerous data collection sites were within the model domain and serve as both calibration and validation locations for the numerical model. Errors between observed and simulated data varied in magnitude from location to location and from one time …
Date: June 1, 2003
Creator: Cook, C.; Richmond, M. & Coleman, A. (Pacific Northwest National Laboratory)
Object Type: Report
System: The UNT Digital Library
Monitor and Protect Wigwam River Bull Trout for Koocanusa Reservoir; Skookumchuck Creek Juvenile Bull Trout and Fish Habitat Monitoring Program, Annual Report 2002. (open access)

Monitor and Protect Wigwam River Bull Trout for Koocanusa Reservoir; Skookumchuck Creek Juvenile Bull Trout and Fish Habitat Monitoring Program, Annual Report 2002.

The Skookumchuck Creek juvenile bull trout (Salvelinus confluentus) and fish habitat-monitoring program is a co-operative initiative of the British Columbia Ministry of Water, Land, and Air Protection and Bonneville Power Administration. This project was commissioned in planning for fish habitat protection and forest development within the Skookumchuck Creek watershed and was intended to expand upon similar studies initiated within the Wigwam River from 2000 to 2002. The broad intent is to develop a better understanding of juvenile bull trout and Westslope cutthroat trout recruitment and the ongoing hydrologic and morphologic processes, especially as they relate to spawning and rearing habitat quality. The 2002 project year represents the first year of a long-term bull trout-monitoring program with current studies focused on collecting baseline information. This report provides a summary of results obtained to date. Bull trout represented 72.4% of the catch. Fry dominated the catch because site selection was biased towards electrofishing sample sites which favored high bull trout fry capture success. The mean density of all juvenile bull trout was estimated to be 6.6 fish/100m{sup 2}. This represents one-half the densities reported for the 2002 Wigwam River enumeration program, even though enumeration of bull trout redds was an order of …
Date: June 1, 2003
Creator: Cope, R.
Object Type: Report
System: The UNT Digital Library
Implementation of Fisheries Enhancement Opportunities on the Coeur d'Alene Reservation; Coeur d'Alene Tribe Fish, Water, and Wildlife Program, Progress Report 1996-1998. (open access)

Implementation of Fisheries Enhancement Opportunities on the Coeur d'Alene Reservation; Coeur d'Alene Tribe Fish, Water, and Wildlife Program, Progress Report 1996-1998.

As part of an ongoing project to restore fisheries resources in tributaries located on the Coeur d'Alene Indian Reservation, this report details the activities of the Coeur d'Alene Tribe's Fisheries Program for FY 1997 and 1998. This report (1) analyses the effect introduced species and water quality have on the abundance of native trout in Coeur d'Alene Lake and selected target tributaries; (2) details results from an ongoing mark-recapture study on predatory game fish; (3) characterizes spawning habitats in target tributaries and evaluates the effects of fine sediment on substrate composition and estimated emergence success; and (4) provides population estimates for westslope cutthroat trout in target tributaries. Low dissolved oxygen values in the hypolimnion of Coeur d'Alene Lake continue to be a cause for concern with regard to available fisheries habitat. Four sample sites in 1997 and eight sample sites in 1998 had measured levels of dissolved oxygen below what is considered optimum (6.0 mg/L) for cutthroat trout. As well, two sample points located north of the Coeur d'Alene River showed hypolimnetic dissolved oxygen deficits. This could lead to a more serious problem associated with the high concentration of heavy metals bound up in the sediment north of the Coeur …
Date: June 1, 2003
Creator: Vitale, Angelo; Bailey, Dee & Peters, Ron
Object Type: Report
System: The UNT Digital Library