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Regulatory Flexibility Act: Key Terms Still Need to Be Clarified

Description: Testimony issued by the General Accounting Office with an abstract that begins "The Regulatory Flexibility Act of 1980 requires federal agencies to examine the impact of their proposed and final rules on small businesses, small governmental jurisdictions, and small organizations and to solicit the ideas and comments of such entities for this purpose. Specifically, whenever agencies are required to publish a notice of proposed rulemaking, the act requires agencies to prepare an initial and a fin… more
Date: April 24, 2001
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Insulated Pressure Vessels for Vehicular Hydrogen Storage: Analysis and Performance Evaluation

Description: Insulated pressure vessels are cryogenic-capable pressure vessels that can be fueled with liquid hydrogen (LH{sub 2}) or ambient-temperature compressed hydrogen (CH{sub 2}). Insulated pressure vessels offer the advantages of liquid hydrogen tanks (low weight and volume), with reduced disadvantages (fuel flexibility, lower energy requirement for hydrogen liquefaction and reduced evaporative losses). The work described here is directed at verifying that commercially available pressure vessels can… more
Date: June 26, 2001
Creator: Aceves, S. M.; Martinez-Frias, J.; Garcia-Villazana, O. & Espinosa-Loza, F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A Revised Magnitude and Distance Amplitude Correction (MDAC2) Procedure for Regional Seismic Discriminants: Theory and Testing at NTS

Description: The Magnitude and Distance Amplitude Correction (MDAC; Taylor and Hartse, 1998; Taylor et al., 2002) procedure for correcting regional seismic amplitudes for seismic event identification has been modified to include more realistic earthquake source models and source scaling. In the MDAC2 formulation we generalize the Brune (1970) earthquake source spectrum to use a more physical apparent stress model that can represent non-constant stress-drop scaling. We also event include a parameter that all… more
Date: December 21, 2001
Creator: Walter, W R & Taylor, S R
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Lorentz force detuning analysis of the Spallation Neutron Source (SNS) accelerating cavities.

Description: The Spallation Neutron Source (SNS) project incorporates a superconducting radio-frequency (SRF) accelerator for the final section of the pulsed mode linac. Cavities with geometrical {beta} values of {beta}=0.61 and {beta}=0.81 are utilized in the SRF section, and are constructed out of thin-walled niobium with stiffener rings welded between the cells near the iris. The welded titanium helium vessel and tuner assembly restrains the cavity beam tubes. Cavities with {beta} values less than one ha… more
Date: January 1, 2001
Creator: Mitchell, Russell R.; Matsumoto, Kay Yuri; Ciovati, Gianluigi; Davis, Kirk; Macha, Kurt & Sundelin, Ronald M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Structural assessment of a cable-stayed bridge

Description: The structural health monitoring of a large cable-stayed bridge using ambient vibration measurement is summarized. The location of the bridge cannot, at this time, be revealed for confidentiality reason. The bridge is continuously monitored with an instrumentation system that has been collecting 16 channels of acceleration, wind pressure and temperature data over the past six years. The paper focuses on the analysis of two data sets collected in June 1995 and September 2000. Nonlinear data proc… more
Date: January 1, 2001
Creator: Hemez, F. M. (François M.) & Sohn, H. (Hoon)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

DESIGN CONSIDERATIONS OF FAST KICKER SYSTEMS FOR HIGH INTENSITY PROTON ACCELERATORS

Description: In this paper, we discuss the specific issues related to the design of the Fast Kicker Systems for high intensity proton accelerators. To address these issues in the preliminary design stage can be critical since the fast kicker systems affect the machine lattice structure and overall design parameters. Main topics include system architecture, design strategy, beam current coupling, grounding, end user cost vs. system cost, reliability, redundancy and flexibility. Operating experience with the … more
Date: January 1, 2001
Creator: Parsons, W. M. (William Mark); Walstrom, P. L. (Peter L.); Murray, M. M. (Matthew M.); Zhang, Wu & Sandberg, J. (Jon)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Refractory metal welding using a 3.3 kW diode pumped Nd:YAG laser.

Description: Recent developments in multi-kilowatt continuous wave lasers allow fiber optic delivery to high-purity controlled atmosphere chambers and challenge electron beam welding with improvements in cost, complexity, beam quality and flexibility. Questions remain with respect to the performance of these lasers for refractory alloy welding regarding damaging back reflections, laser-plume interactions, and sufficiency of beam intensity and coupled energy. System performance for the welding of various ref… more
Date: January 1, 2001
Creator: Carpenter, R. W. (Robert W.); Piltch, M. S. (Martin S.); Nemec, R. B. (Ronald B.) & Milewski, J. O. (John O.)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The Integrated Waste Tracking System - A Flexible Waste Management Tool

Description: The US Department of Energy (DOE) Idaho National Engineering and Environmental Laboratory (INEEL) has fully embraced a flexible, computer-based tool to help increase waste management efficiency and integrate multiple operational functions from waste generation through waste disposition while reducing cost. The Integrated Waste Tracking System (IWTS)provides comprehensive information management for containerized waste during generation,storage, treatment, transport, and disposal. The IWTS provid… more
Date: February 1, 2001
Creator: Anderson, Robert Stephen
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Imaging Laser Ultrasonics Measurement of the Elastodynamic Properties of Paper

Description: Many sheet and plate material industries (e.g. paper) desire knowledge of the anisotropic stiffness properties of their material to optimize the manufacturing process. A determination of the anisotropic elastic matrix would be very beneficial for determination of parameters, such as as microstructural texture, fiber or grain orientation and stiffness. The propagation of ultrasonic waves in plates is a method for determining the anisotropic elastic properties in a nondestructive manner. Laser ul… more
Date: October 1, 2001
Creator: Telschow, Kenneth Louis & Deason, Vance Albert
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Refractory failure in IGCC fossil fuel power systems

Description: Current generation refractory materials used in slagging gasifiers employed in Integrated Gasification Combined Cycle (IGCC) fossil fuel power systems have unacceptably short service lives, limiting the reliability and cost effectiveness of gasification as a means to generate power. The short service life of the refractory lining results from exposure to the extreme environment inside the operating gasifier, where the materials challenges include temperatures to 1650 C, thermal cycling, alterna… more
Date: January 1, 2001
Creator: Dogan, Cynthia P.; Kwong, Kyei-Sing; Bennett, James P. & Chinn, Richard E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Technology Opportunities to Reduce U.S. Greenhouse Gas Emissions

Description: The rise in greenhouse gas emissions from fossil fuel combustion and industrial and agricultural activities has aroused international concern about the possible impacts of these emissions on climate. Greenhouse gases--mostly carbon dioxide, some methane, nitrous oxide and other trace gases--are emitted to the atmosphere, enhancing an effect in which heat reflected from the earth's surface is kept from escaping into space, as in a greenhouse. Thus, there is concern that the earth's surface tempe… more
Date: April 5, 2001
Creator: National Lab Directors, . .
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A TRANSPORTATION RISK ASSESSMENT TOOL FOR ANALYZING THE TRANSPORT OF SPENT NUCLEAR FUEL AND HIGH-LEVEL RADIOACTIVE WASTE TO THE PROPOSED YUCCA MOUNTAIN REPOSITORY

Description: The Yucca Mountain Draft Environmental Impact Statement (DEIS) analysis addressed the potential for transporting spent nuclear fuel and high-level radioactive waste from 77 origins for 34 types of spent fuel and high-level radioactive waste, 49,914 legal weight truck shipments, and 10,911 rail shipments. The analysis evaluated transportation over 59,250 unique shipment links for travel outside Nevada (shipment segments in urban, suburban or rural zones by state), and 22,611 links in Nevada. In … more
Date: February 15, 2001
Creator: NA
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced Stripper Gas Produced Water Remediation, Quarterly Technical Report: July-September 2001

Description: Natural gas and oil production from stripper wells also produces water contaminated with hydrocarbons, and in most locations, salts and trace elements. The hydrocarbons are not generally present in concentrations that allow the operator to economically recover these liquids. Produced liquids, (Stripper Gas Water) which are predominantly water, present the operator with two options; purify the water to acceptable levels of contaminates, or pay for the disposal of the water. The project scope inv… more
Date: November 2001
Creator: Sheldon, Ray W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of novel strategies for enhancing the cycle life of lithium solid polymer electrolyte batteries. Final report

Description: Lithium/solid polymer electrolyte (Li/SPE) secondary batteries are under intense development as power sources for portable electronic devices as well as electric vehicles. These batteries offer high specific energy, high energy density, very low self-discharge rates, and flexibility in packaging; however, problems have inhibited their introduction into the marketplace. This report summarizes findings to examine processes that occur with Li/SPE secondary batteries upon cyclic charging/dischargin… more
Date: April 30, 2001
Creator: Macdonald, Digby D.; Urquidi-Macdonald, Mirna; Allcock, Harry; Engelhard, George; Bomberger, N.; Gao, L. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

In-Situ Electrolyte Replenishment for Long Fuel Cell Life. Phase II Final Report

Description: The carbonate fuel cell has many advantages over conventional methods of producing electricity. It converts hydrocarbon fuels directly into electricity with a high efficiency (>70% in a co-generation plant configuration) and consequently releases less carbon dioxide greenhouse gases (>30% less compared to a combined cycle gas turbine plant). Its adaptability to meet the customers' specific power requirements is ideally suited for distributed power generation. The advantages of distributed… more
Date: January 31, 2001
Creator: Johnsen, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fuel Flexibility in Gasification

Description: In order to increase efficiencies of carbonizers, operation at high pressures is needed. In addition, waste biomass fuels of opportunity can be used to offset fossil fuel use. The National Energy Technology Laboratory (NETL) Fluidized Bed Gasifier/Combustor (FBG/C) was used to gasify coal and mixtures of coal and biomass (sawdust) at 425 psig. The purpose of the testing program was to generate steady state operating data for modeling efforts of carbonizers. A test program was completed with a m… more
Date: November 6, 2001
Creator: McLendon, T. Robert; Pineault, Richard L.; Richardson, Steven W.; Rockey, John M.; Beer, Stephen K. (U.S. DOE National Energy Technology Laboratory); Lui, Alain P. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Key Design Requirements for Long-Reach Manipulators

Description: Long-reach manipulators differ from industrial robots and teleoperators typically used in the nuclear industry in that the aspect ratio (length to diameter) of links is much greater and link flexibility, as well as joint or drive train flexibility, is likely to be significant. Long-reach manipulators will be required for a variety of applications in the Environmental Restoration and Waste Management Program. While each application will present specific functional, kinematic, and performance req… more
Date: January 1, 2001
Creator: Kwon, D. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

1995 NPTS Databook

Description: Policymakers rely on transportation statistics, including data on personal travel behavior, to formulate strategic transportation policies and to improve the safety and efficiency of the U.S. transportation system. Data on personal travel trends are needed to examine the reliability, efficiency, capacity, and flexibility of the Nation's transportation system to meet current demands and accommodate future demands; to assess the feasibility and efficiency of alternative congestion-alleviating tec… more
Date: December 5, 2001
Creator: Hu, P. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

MODULAR MANIPULATOR FOR ROBOTICS APPLICATIONS

Description: ARM Automation, Inc. is developing a framework of modular actuators that can address the DOE's wide range of robotics needs. The objective of this effort is to demonstrate the effectiveness of this technology by constructing a manipulator from these actuators within a glovebox for Automated Plutonium Processing (APP). At the end of the project, the system of actuators was used to construct several different manipulator configurations, which accommodate common glovebox tasks such as repackaging.… more
Date: July 31, 2001
Creator: Joseph W. Geisinger, Ph.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Novel Integrating Solid State Detector With Segmentation For Scanning Transmission Soft X-Ray Microscopy.

Description: An integrating solid state detector with segmentation has been developed that addresses the needs in scanning transmission x-ray microscopy below 1 keV photon energy. The detector is not cooled and can be operated without an entrance window which leads to a total photon detection efficiency close to 100%. The chosen segmentation with 8 independent segments is matched to the geometry of the STXM to maximize image mode flexibility. In the bright field configuration for 1 ms integration time and 5… more
Date: July 29, 2001
Creator: Feser, M.; Jacobsen, C.; Rehak, P.; De Geronimo, G.; Holl, P. & Studer, L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Micromechanical Structures Fabrication

Description: Work in materials other than silicon for MEMS applications has typically been restricted to metals and metal oxides instead of more ''exotic'' semiconductors. However, group III-V and II-VI semiconductors form a very important and versatile collection of material and electronic parameters available to the MEMS and MOEMS designer. With these materials, not only are the traditional mechanical material variables (thermal conductivity, thermal expansion, Young's modulus, etc.) available, but also c… more
Date: May 8, 2001
Creator: Rajic, S
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Application Software Structure Enables NIF Operations

Description: The NIF Integrated Computer Control System (ICCS) application software uses a set of service frameworks that assures uniform behavior spanning the front-end processors (FEPs) and supervisor programs. This uniformity is visible both in the way each program employs shared services and in the flexibility it affords for attaching graphical user interfaces (GUIs). Uniformity of structure across applications is desired for the benefit of programmers who will be maintaining the many programs that cons… more
Date: October 17, 2001
Creator: Fong, K W; Estes, C M; Fisher, J M & Shelton, R T
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Methods and Results of Reducing Following Error in the LLNL Large Optics Diamond Turning Machine

Description: The USAF Integrated Flight Experiment (IFX) Project is part of the development of the Space Based Laser (SBL) Program. The LLNL Large Optics Diamond Turning Machine (LODTM) is responsible for diamond turning the aspheric laser cavity mirrors. These large optics must be manufactured to micro-inch tolerances. The optics are made of silicon to minimize cooling requirements and weight in the SBL. Diamond turning silicon presents many challenges to the LODTM; one of which is silicon's anisotropic pr… more
Date: April 10, 2001
Creator: Hopkins, D J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Performance and Certification Testing of Insulated Pressure Vessels for Vehicular Hydrogen Storage

Description: Insulated pressure vessels are cryogenic-capable pressure vessels that can be fueled with liquid hydrogen (LH2) or ambient-temperature compressed hydrogen (CH2). Insulated pressure vessels offer the advantages of liquid hydrogen tanks (low weight and volume), with reduced disadvantages (fuel flexibility, lower energy requirement for hydrogen liquefaction and reduced evaporative losses). The work described here is directed at verifying that commercially available pressure vessels can be safely u… more
Date: June 3, 2001
Creator: Aceves, S. M.; Martinez-Frias, J.; Garcia-Villazana, O. & Espinosa-Loza, F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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