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Hourly Fees Paid by Various Federal Agencies to Private Attorneys for Legal Services

Description: Correspondence issued by the General Accounting Office with an abstract that begins "This report provides information on hourly fees paid by the federal government to private attorneys for legal services in fiscal years 1999, 2000, and 2001. Relevant legal services include federal employee defense, litigative consultation, intellectual property consultation, and asset forfeiture-related services. For these types of services, GAO obtained information on hourly fees paid to private attorneys by t… more
Date: July 3, 2001
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
open access

Information Security: Weak Controls Place Interior's Financial and Other Data at Risk

Description: A letter report issued by the General Accounting Office with an abstract that begins "This report reviews information system general controls over the financial systems maintained by the Department of the Interior at its National Business Center (NBC) in Denver, Colorado. GAO found that although the Denver center has made progress in correcting previously cited computer security weaknesses, additional weaknesses affect the Denver center's information system control environment. These weaknesse… more
Date: July 3, 2001
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
open access

Mass Transit: Many Management Successes at WMATA, but Capital Planning Could Be Enhanced

Description: A letter report issued by the General Accounting Office with an abstract that begins "In recent years, the Washington Metropolitan Area Transit Authority's (WMATA) public transit system has experienced problems with the safety and reliability of its transit services, including equipment breakdowns, delays in scheduled service, unprecedented crowding on trains, and some accidents and tunnel fires. At the same time, WMATA's ridership is at an all time high and WMATA managers expect the number of … more
Date: July 3, 2001
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
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Performance of Planted Herbaceous Species in Longleaf Pine (Pinus palustris Mill.) Plantations: Overstory Effects of Competition and Needlefall

Description: Research to determine the separate effects of above-ground and below-ground competition and needlefall of over-story pines on under-story plant performance. Periodic monitoring of over-story crown closure, soil water content, temperature, and nutrients were conducted. Results indicate competition for light had a more determental effect on performance of herbaceous species in longleaf pine plantations than that resulting from competition for below-ground resources.
Date: July 3, 2001
Creator: Dagley, Christa Marie
Partner: UNT Libraries Government Documents Department
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Vapor-Phase Garnet at Yucca Mountain, Nevada: Geochemistry and Oxygen-Isotope Thermometry

Description: About 20 vapor-phase garnets were studied in two samples of the Topopah Spring Tuff from Yucca Mountain, in southern Nevada. The Miocene-age Topopah Spring Tuff is a 350-m-thick, devitrified, moderately to densely welded ash flow that is compositionally zoned from high-silica rhyolite to quartz latite. During cooling of the tuff, escaping vapor produced lithophysae (former gas cavities) lined with an assemblage of tridymite, cristobalite, alkali feldspar, and locally, hematite and/or garnet. Va… more
Date: July 3, 2001
Creator: Moscati, R. J.; Johnson, C. A. & Whelan, J. F.
Partner: UNT Libraries Government Documents Department
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National Integrated Ballistics Information Network (NIBIN) for Law Enforcement

Description: This report provides a brief history of how the current National Integrated Ballistics Information Network (NIBIN) system evolved and operates. It includes information about issues that may be of concern to Members and committees of the 107th Congress, such as whether expanding NIBIN to include new gun purchases could be construed as a step toward a national gun registry system. The report also summarizes bills introduced in the 107th Congress related to NIBIN.
Date: July 3, 2001
Creator: Boesman, William C. & Krouse, William J.
Partner: UNT Libraries Government Documents Department
open access

Low-Power Direct-Sequence Spread-Spectrum Modem Architecture for Distributed Wireless Sensor Networks

Description: Emerging CMOS and MEMS technologies enable the implementation of a large number of wireless distributed microsensors that can be easily and rapidly deployed to form highly redundant, self-configuring, and ad hoc sensor networks. To facilitate ease of deployment, these sensors should operate on battery for extended periods of time. A particular challenge in maintaining extended battery lifetime lies in achieving communications with low power. This paper presents a direct-sequence spread-spectrum… more
Date: July 3, 2001
Creator: Chien, C; Elgorriaga, I & McConaghy, C
Partner: UNT Libraries Government Documents Department
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Multiwavelength monitoring of the narrow-line Seyfert 1 galaxy Arakelian 564. II. Ultraviolet continuum and emission-line variability

Description: This article presents the results of an intensive 2 month campaign of approximately daily spectrophotometric monitoring of the narrow-line Seyfert 1 galaxy Ark 564 with the Hubble Space Telescope.
Date: July 3, 2001
Creator: Collier, S.; Crenshaw, D.M.; Peterson, Bradley M.; Brandt, William Nielsen; Clavel, J.; Edelson, R. et al.
Partner: UNT College of Arts and Sciences
open access

A search for coupled-bunch instability in the Fermilab Main Injector

Description: In the Fermilab Main Injector (MI) we are planning to double the bunch intensity from its design value by slip stacking. The accelerator consists of 18 rf cavities which operate at a harmonic number of 588. These cavities are known to have many higher ordered resonances. Longitudinal coupled-bunch instability induced by excitation of the rf cavities may be an important issue to be addressed in the intensity upgrade. Here we have carried out some simulation studies of the longitudinal coupled bu… more
Date: July 3, 2001
Creator: al., C. M. Bhat et
Partner: UNT Libraries Government Documents Department
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Space-charge effects on bunch rotation in the longitudinal phase space

Description: The longitudinal and transverse space-charge effects on bunch rotation in the longitudinal phase space designed to produce an intense short proton bunch are discussed. A criterion for length broadening due to space-charge modification of the rf potential is given. As for the transverse effect, the incoherent space-charge tune shifts will affect the bunch rotation unless the chromaticities are properly corrected.
Date: July 3, 2001
Creator: Ng, King-Yuen
Partner: UNT Libraries Government Documents Department
open access

Pbar acceleration in the MI - Tune-Up study using protons

Description: We discuss both simulations as well as experimental studies of a potentially beneficial acceleration scheme in the MI for pbars from the Accumulator Ring or Recycler Ring. The scheme involves accepting the pbar bunches with 2.5 MHz rf structure from either of these two synchrotrons. re-bunching using 53 MHz rf system iso-adiabatically and accelerating using 53 MHz rf system from 8 GeV to 150 GeV. Further we try to coalesce the beam using the 2.5 MHz rf system. Various stages of rf manipulation … more
Date: July 3, 2001
Creator: al., C.M. Bhat et
Partner: UNT Libraries Government Documents Department
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Field Verification Program for Small Wind Turbines: Quarterly Report for October-December 2000; 4th Quarter, Iss. No.3

Description: This newsletter provides a brief overview of the Field Verification Program for Small Wind Turbines conducted out of the NWTC and a description of current activities. The newsletter also contains case studies of current projects.
Date: July 3, 2001
Creator: Cardinal, J.
Partner: UNT Libraries Government Documents Department
open access

HVAC BESTEST: A Procedure for Testing the Ability of Whole-Building Energy Simulation Programs to Model Space Conditioning Equipment: Preprint

Description: Validation of Building Energy Simulation Programs consists of a combination of empirical validation, analytical verification, and comparative analysis techniques (Judkoff 1988). An analytical verification and comparative diagnostic procedure was developed to test the ability of whole-building simulation programs to model the performance of unitary space-cooling equipment that is typically modeled using manufacturer design data presented as empirically derived performance maps. Field trials of t… more
Date: July 3, 2001
Creator: Neymark, J,; Judkoff, R.; Knabe, G.; Le, H.-T.; Durig, M.; Glass, A. et al.
Partner: UNT Libraries Government Documents Department
open access

Recent QCD results from D0 at the Tevatron

Description: The D0 experiment at the Tevatron proton-antiproton collider accumulated a large sample of high energy jet production data during Run I (1992-1996). Presented here are measurements of the inclusive jet cross section at a center-of-mass energy {radical}s = 1800 GeV, and a ratio of central inclusive jet cross sections at two different center-of-mass energies (1800 and 630 GeV). Also included is a measure of the ratio of multijet production cross sections at the higher {radical}s: All measurements… more
Date: July 3, 2001
Creator: Gallas, Elizabeth
Partner: UNT Libraries Government Documents Department
open access

A lex-based mad parser and its applications

Description: An embeddable and portable Lex-based MAD language parser has been developed. The parser consists of a front-end which reads a MAD file and keeps beam elements, beam line data and algebraic expressions in tree-like structures, and a back-end, which processes the front-end data to generate an input file or data structures compatible with user applications. Three working programs are described, namely, a MAD to C++ converter, a dynamic C++ object factory and a MAD-MARS beam line builder. Design an… more
Date: July 3, 2001
Creator: al., Oleg Krivosheev et
Partner: UNT Libraries Government Documents Department
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Real-Time Data Processing in the muon system of the D0 detector.

Description: This paper presents a real-time application of the 16-bit fixed point Digital Signal Processors (DSPs), in the Muon System of the D0 detector located at the Fermilab Tevatron, presently the world's highest-energy hadron collider. As part of the Upgrade for a run beginning in the year 2000, the system is required to process data at an input event rate of 10 KHz without incurring significant deadtime in readout. The ADSP21csp01 processor has high I/O bandwidth, single cycle instruction execution … more
Date: July 3, 2001
Creator: Parashar, Neeti; Bardon, O.; Goodwin, R.; Hansen, S.; Hoeneisen, B.; Podstavkov, V. et al.
Partner: UNT Libraries Government Documents Department
open access

Double field flip cooling channel for the neutrino factory

Description: A 220 m long ionization cooling system consisting of three solenoids with two field-flip sections, is proposed as a cooling channel for the neutrino factory. The reduction of transverse emittance is achieved using 87 liquid hydrogen absorbers (30-40 cm long), and 87 (2 m long) 200 MHz linacs. The first flip is performed at relatively small magnetic field, B = 3 T, to keep the longitudinal motion under control. The field is then increased adiabatically up to 7 T and a second field flip performed… more
Date: July 3, 2001
Creator: al., Valeri Balbekov et
Partner: UNT Libraries Government Documents Department
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Implications of the Tevatron jet results on PDF

Description: We report a new measurement of the pseudorapidity ({eta}) and transverse-energy (E{sub T}) dependence of the inclusive jet production cross section in p{bar p} collisions at {radical}s = 1:8 TeV using 95 pb{sup {minus}1} of data collected with the D0 detector at the Fermilab Tevatron. The differential cross section d{sup 2}{sigma}/(dE{sub T}d{eta}) is presented up to {vert_bar}{eta}{vert_bar} = 3, significantly extending previous measurements. The results are in good overall agreement with next… more
Date: July 3, 2001
Creator: Babukhadia, Levan
Partner: UNT Libraries Government Documents Department
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Small-Scale Geothermal Power Plant Field Verification Projects

Description: In the spring of 2000, the National Renewable Energy Laboratory issued a Request for Proposal for the construction of small-scale (300 kilowatt [kW] to 1 megawatt [MW]) geothermal power plants in the western United States. Five projects were selected for funding. Of these five, subcontracts have been completed for three, and preliminary design work is being conducted. The three projects currently under contract represent a variety of concepts and locations: a 1-MW evaporatively enhanced, air-co… more
Date: July 3, 2001
Creator: Kutscher, Chuck
Partner: UNT Libraries Government Documents Department
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High-frequency bunching and phi-delta E rotation for a muon source

Description: A scenario for capture, bunching and rf rotation of {mu}'s from a proton source is presented. It consists of a drift section, a variable frequency {approximately} 300 {r_arrow} 180 MHz bunching section, and a fixed (or variable) frequency ({approximately}180 MHz) {phi}-{delta}E rotation section. In 1-D and 3-D simulations (SIMUCOOL and ICOOL), the overall capture performance of the system is similar to that of induction linac + buncher scenarios developed for the neutrino factory. The total rf … more
Date: July 3, 2001
Creator: Ginneken, David Neuffer and A. Van
Partner: UNT Libraries Government Documents Department
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Engineering, design and prototype tests of a 3.9 GHz transverse-mode superconducting cavity for a radiofrequency-separated kaon beam

Description: A research and development program is underway to construct superconducting cavities to be used for radiofrequency separation of a Kaon beam at Fermilab. The design calls for installation of twelve 13-cell cavities operating in the 3.9 GHz transverse mode with a deflection gradient of 5 MV/m. They present the mechanical, cryogenic and vacuum design of the cavity, cryomodule, rf power coupler, cold tuner and supporting hardware. The electromagnetic design of the cavity is presented in a companio… more
Date: July 3, 2001
Creator: al., Mark S.Champion et
Partner: UNT Libraries Government Documents Department
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An introduction to pyrochemistry with emphasis on nuclear applications.

Description: This report illustrates the application of thermodynamic principles to further understanding of pyrochemical processes useful for the recovery and purification of nuclear materials. It draws extensively upon the theoretical and experimental work conducted over nearly four decades in the Chemical Technology Division (formerly called the Chemical Engineering Division) of Argonne National Laboratory. After a brief discussion of fundamental thermodynamic principles and equations, they are applied t… more
Date: July 3, 2001
Creator: Johnson, I.
Partner: UNT Libraries Government Documents Department
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