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U.S. Postal Service: Accounting for Postretirement Benefits

Description: Correspondence issued by the General Accounting Office with an abstract that begins "A 1992 GAO report found that the U.S. Postal Service's (USPS) use of the pay-as-you-go basis of accounting for the postretirement health benefit costs of employers participating in multiemployer plans was in accordance with existing private sector generally accepted accounting principles. GAO recently concluded that that report did not adequately consider the potential accounting ramifications of USPS's unique … more
Date: September 12, 2002
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Electronic Transfers: Use by Federal Payment Recipients Has Increased but Obstacles to Greater Participation Remain

Description: A letter report issued by the General Accounting Office with an abstract that begins "In 2001, the Department of the Treasury made 764 million payments valued at $549 billion to beneficiaries of federal programs, primarily programs administered by the Social Security Administration. Of these payments, 76 percent were made using electronic funds transfers (EFTs), potentially saving the government millions of dollars in costs associated with disbursing paper checks. In 1996, Congress passed legis… more
Date: September 12, 2002
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Defense Trade: Mitigating National Security Concerns under Exon-Florio Could Be Improved

Description: A letter report issued by the General Accounting Office with an abstract that begins "The Exon-Florio amendment to the Defense Production Act authorizes the President to suspend or prohibit foreign acquisitions, mergers, or takeovers of U.S. companies if (1) there is credible evidence that a foreign controlling interest might threaten national security and (2) legislation, other than Exon-Florio and the International Emergency Economic Powers Act, does not adequately or appropriately protect na… more
Date: September 12, 2002
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Macroparticle simulation studies of a proton beam haloexperiment

Description: We report macroparticle simulations for comparison withmeasured results from a proton beam-halo experiment in a 52-quadrupoleperiodic-focusing channel. An important issue is that the inputphase-space distribution is not experimentally known. Three differentinitial distributions with different shapes predict different beamprofiles in the transport system. Simulations have been fairly successfulin reproducing the core of the measured matched-beam profiles and thetrend of emittance growth as a fun… more
Date: September 12, 2002
Creator: Qiang, J.; Colestock, P. L.; Gilpatrick, D.; Smith, H. V.; Wangler, T. P. & Schulze, M. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Effect of Cooling Rate, Thermal Expansion, and Waste Loading on Glass Fracture

Description: When waste glass is poured into metal canisters, it fractures, primarily due to temperature gradients induced during cooling. A technique to quantitatively determine the additional glass surface area due to fracture was developed based on this study.
Date: September 12, 2002
Creator: Kessler, J.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Use of One-On Analysis to Evaluate Total System Performance of the Proposed Yucca Mountain Nuclear Waste Repository

Description: The Yucca Mountain Site Characterization Project is currently evaluating the future performance of the proposed U.S. high-level nuclear waste repository. Using the Total System Performance Assessment (TSPA) model, a stylized analysis was conducted to evaluate the relative importance of natural and engineered barriers to movement of radionuclides from the proposed repository. These stylized ''one-on'' analyses consist of sequentially adding features, components, and processes, associated with th… more
Date: September 12, 2002
Creator: Saulnier, G. J., Jr.; Lee, K. P.; Mehta, S.; Sevougian, S. D.; Kalinich, D. & McNeish, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Positioning system for the LCLS undulator.

Description: The Linac Coherent Light Source (LCLS) Project includes the undulator subsystem that has 33 undulator magnetic structures each 3.4 m long. Positioning of the LCLS undulators along the undulator line with an accuracy of 50 {micro}m in the vertical transverse direction is required. A prototype of the LCLS undulator has been built with a positioning system based on three stages with cam shafts. Each cam shaft produces reciprocating motion with a range of {+-}3 mm. A servomotor with integrated brak… more
Date: September 12, 2002
Creator: Trakhenberg, E. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Parametric Investigation of Miniaturized Cylindrical and Annular Hall Thrusters

Description: Conventional annular Hall thrusters become inefficient when scaled to low power. An alternative approach, a 2.6-cm miniaturized cylindrical Hall thruster with a cusp-type magnetic field distribution, was developed and studied. Its performance was compared to that of a conventional annular thruster of the same dimensions. The cylindrical thruster exhibits discharge characteristics similar to those of the annular thruster, but it has a much higher propellant ionization efficiency. Significantly, … more
Date: September 12, 2002
Creator: Smirnov, A.; Raitses, Y. & Fisch, N. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Program analysis methodology Office of Transportation Technologies 2003 quality metrics final report.

Description: The purpose of this report is to describe the methodology and results obtained from a continuing DOE Office of Transportation Technologies (OTT) activity to estimate future effects of OTT projects on national energy use, petroleum consumption, criteria emissions, greenhouse gas emissions, and various measures of national income and employment. Assumptions are made about the future costs and characteristics of alternative vehicles and fuels. Models that take into account the value that vehicle b… more
Date: September 12, 2002
Creator: Patterson, P.; Moore, J.; Singh, M. & Steiner, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Gallery of Datacubes Obtained with the Livermore Imaging Fourier Transform Spectrometer

Description: We have acquired spatial-spectral datacubes of astronomical objects using the Livermore visible-band imaging Fourier transform spectrometer at Apache Point Observatory. Each raw datacube contains hundreds of thousands of spectral interferograms. We present in-progress demonstrations of these observations.
Date: September 12, 2002
Creator: Wurtz, R.; Wishnow, E. H.; Blais-Ouellette, S.; Cook, K. H.; Holden, B. P.; Carr, D. J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

High power testing oa ANL X-band dielectric-loaded accelerating structures.

Description: In the second phase of a program to develop a compact accelerator based on a dielectric-loaded accelerating structure, we have conducted high power tests on a traveling-wave and a standing-wave prototype. Indications are that the traveling-wave structure achieved an accelerating gradient of 3-5 MV/m before the input coupling window failed, while the standing wave structure was poorly matched at high power due to contamination of copper residue on its coupling window. To solve both of these prob… more
Date: September 12, 2002
Creator: Power, J. G.; Gai, W.; Jing, C.; Konecny, R.; Gold, S. H. & Kinkead, A. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

FIRE, A Next Step Option for Magnetic Fusion

Description: The next major frontier in magnetic fusion physics is to explore and understand the strong nonlinear coupling among confinement, MHD stability, self-heating, edge physics, and wave-particle interactions that is fundamental to fusion plasma behavior. The Fusion Ignition Research Experiment (FIRE) Design Study has been undertaken to define the lowest cost facility to attain, explore, understand, and optimize magnetically confined fusion-dominated plasmas. The FIRE is envisioned as an extension of… more
Date: September 12, 2002
Creator: Meade, D.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

3-D surface profile measurements of large x-ray synchrotron radiation mirrors using stitching interferometry.

Description: Stitching interferometry, using small-aperture, high-resolution, phase-measuring interferometry, has been proposed for quite some time now as a metrology technique to obtain 3-dimensional profiles of surfaces of oversized optical components and substrates. The aim of this work is to apply this method to the specific case of long grazing-incidence x-ray mirrors, such as those used in beamlines at synchrotron radiation facilities around the world. Both fabrication and characterization of these mi… more
Date: September 12, 2002
Creator: Assoufid, L.; Bray, M.; Qian, J. & Shu, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Grain rotation as a mechanism of grain growth in nanocrystalline materials.

Description: Grain-boundary (GB) properties in a polycrystalline system are generally anisotropic; in particular, both the GB energy and mobility depend on the GB misorientation. Moreover, in nanocrystalline materials, in which the grain size is less than 100 nm, grain rotations leading to the coalescence of neighboring grains via elimination of the common GB between them may provide a new mechanism for grain growth. Here they investigate the combined effect of curvature-driven GB migration and grain-rotati… more
Date: September 12, 2002
Creator: Moldovan, D.; Wolf, D.; Phillpot, S. R. & Haslam, A. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Characteristics of aqueous colloids generated by corrosion of metallic uranium fuel.

Description: Metallic uranium fuel from the Hanford N Reactor was corroded in aqueous solutions and the resulting colloidal suspensions were analyzed to determine particle size, morphology, population, and radionuclide association. The experiments used a range of solution chemistry conditions including deionized water, single salt solutions, and modified groundwater from Yucca Mountain. Colloids were analyzed by inductively coupled plasma mass spectrometry, transmission electron microscopy, photon correlati… more
Date: September 12, 2002
Creator: Fortner, J. A.; Mertz, C. J.; Goldberg, M. M. & Siefert, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Campaign Finance: Constitutional and Legal Issues of Soft Money

Description: Soft money is a major issue in the campaign finance reform debate because these generally unregulated funds are perceived as resulting from a loophole in the Federal Election Campaign Act (FECA). Generally, soft money is funds that are raised and spent according to applicable state laws, which FECA prohibits from being spent directly on federal elections, but that may have an indirect influence on federal elections. This Issue Brief discusses three major types of soft money: political party sof… more
Date: September 12, 2002
Creator: Whitaker, L. Paige
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Crime Control: The Federal Response

Description: Under the federal system in the United States, the states and localities traditionally have held the major responsibility for prevention and control of crime and maintenance of order. For most of the Republic’s history, “police powers” in the broad sense were reserved to the states under the Tenth Amendment to the Constitution. Many still hold that view, but others see a string of court decisions in recent decades as providing the basis for a far more active federal role. Several bills are disc… more
Date: September 12, 2002
Creator: O'Bryant, JoAnne & Seghetti, Lisa M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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