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open access

WTO Dispute Settlement: Status of U.S. Compliance in Pending Cases

Description: This report provides a summary of the status of U.S. compliance efforts in pending World Trade Organization (WTO) disputes that have resulted in adverse rulings against the United States. The report contains an overview of WTO dispute settlement procedures, a discussion of U.S. laws relating to WTO dispute proceedings, and a list of pending WTO disputes compliance phase, with a discussion of major issues and the U.S. compliance history in each.
Date: January 29, 2010
Creator: Grimmett, Jeanne J.
open access

X-band Scanning ARM Precipitation Radar (X-SAPR) Instrument Handbook

Description: The X-band scanning ARM cloud radar (X-SAPR) is a full-hemispherical scanning polarimetric Doppler radar transmitting simultaneously in both H and V polarizations. With a 200 kW magnetron transmitter, this puts 100 kW of transmitted power for each polarization. The receiver for the X-SAPR is a Vaisala Sigmet RVP-900 operating in a coherent-on-receive mode. Three X-SAPRs are deployed around the Southern Great Plains (SGP) Central Facility in a triangular array. A fourth X-SAPR is deployed near B… more
Date: October 29, 2012
Creator: Widener, K. & Bharadwaj, N.
open access

X-Ray Active Matrix Pixel Sensors Basedon J-FET Technology Developed for the Linac Coherent Light Source.

Description: An X-ray Active Matrix Pixel Sensor (XAMPS) is being developed for recording data for the X-ray Pump Probe experiment at the Linac Coherent Light Source (LCLS). Special attention has to be paid to some technological challenges that this design presents. New processes were developed and refined to address problems encountered during previous productions of XAMPS. The development of these critical steps and corresponding tests results are reported here.
Date: October 29, 2007
Creator: Carini, G. A.; Chen, W.; Li, Z.; Rehak, P. & Siddons, D. P.
open access

X-Ray CT of Highly-Attenuating Objects: 9- or 15- MV Spectra?

Description: We imaged-highly attenuating test objects in three dimensions with 9-MV (at LLNL) and 15-MV (at Hill Air Force Base) x-ray spectra. While we used the same detector and motion control, there were differences that we could not control in the two radiography bays and in the sources. The results show better spatial resolution for the 9-MV spectrum and better contrast for the 15-MV spectrum. The 15-MV data contains a noise pattern that obfuscates the data. It is our judgment that if sufficient atten… more
Date: August 29, 2005
Creator: Stone, G; Trebes, J; Perry, R; Schneberk, D & Logan, C
open access

XTOD to Conventional Facilities Interface Control Document

Description: This document describes the interface between the LCLS X-ray Transport and Diagnostics (XTOD) (WBS 1.5) and the LCLS Conventional Facilities (CF) (WBS 1.1). The interface locations ranging from the beam dump to the far experimental hall are identified. Conventional Facilities provides x-ray, beamline and equipment enclosures, mounting surfaces, conventional utilities, compressed (clean, dry) air, process and purge gases, exhaust systems, power, and environmental conditions for the XTOD componen… more
Date: September 29, 2005
Creator: McMahon, D
open access

XUV radiography measurements of direct drive imprint in thin aluminum foils using a Ge x-ray laser on Vulcan

Description: One key aspect for high gain direct drive inertial confinement fusion is the imprint of perturbations in the outer surface of a capsule due to nonuniformities in the direct laser illumination of the capsule. Direct drive implosions are achieved by uniformly irradiating the outside surface of a hollow spherical capsule that contains a layer of fusionable D-T on its inner surface. The intensity of laser irradiation is down with a low intensity ``foot`` at 10{sup 13} W/cm{sup 2} for several nanose… more
Date: March 29, 1996
Creator: Kalantar, D.H.; Demir, A. & Key, M.H.
open access

Y-12 site-specific earthquake response analysis and soil liquefaction assessment

Description: A site-specific earthquake response analysis and soil liquefaction assessment were performed for the Oak Ridge Y-12 Plant. The main purpose of these studies was to use the results of the analyses for evaluating the safety of the performance category -1, -2, and -3 facilities against the natural phenomena seismic hazards. Earthquake response was determined for seven (7), one dimensional soil columns (Fig. 12) using two horizontal components of the PC-3 design basis 2000-year seismic event. The c… more
Date: September 29, 1995
Creator: Ahmed, S.B.; Hunt, R.J. & Manrod, W.E. III
open access

Year 2000 Computing Challenge: Federal Business Continuity and Contingency Plans and Day One Strategies

Description: Testimony issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed the status of agencies' business continuity and contingency plans and Day One strategies, focusing on the: (1) state of the government's business continuity and contingency planning; and (2) status of Day One strategies."
Date: October 29, 1999
Creator: United States. General Accounting Office.
open access

Year 2000 Computing Challenge: Financial Management Service Has Established Effective Year 2000 Testing Controls

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the Financial Management Service's (FMS) Year 2000 program, focusing on whether FMS is: (1) effectively managing its year 2000 testing; and (2) taking adequate steps to mitigate the year 2000 risks associated with four mission-critical systems that were not implemented by the Office of Management and Budget's (OMB) March 1999 deadline."
Date: October 29, 1999
Creator: United States. General Accounting Office.
open access

Year 2000 Computing Challenge: Status of Emergency and State and Local Law Enforcement Systems Is Still Unknown

Description: Testimony issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed the: (1) impact of the year 2000 challenge on the nation's emergency and state and local law enforcement systems; and (2) Department of Justice (DOJ) and the President's Council on Year 2000 Conversion efforts to facilitate remediation and contingency planning and to gauge the year 2000 readiness of these two important sectors."
Date: April 29, 1999
Creator: United States. General Accounting Office.
open access

Year 2000 Computing Crisis: Customs Has Established Effective Year 2000 Program Controls

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO evaluated the Customs Service's efforts to address its year 2000 computing problem, focusing on whether Customs has established effective management structures and processes for managing and reporting on key aspects of its Year 2000 program."
Date: March 29, 1999
Creator: United States. General Accounting Office.
open access

Year 2000 Computing Crisis: Status of Airports' Efforts to Deal with Date Change Problem

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the status of airports' efforts to prepare for the year 2000, focusing on: (1) the status of airports' efforts to help ensure that their computers and electronic equipment will function properly on and after January 1, 2000; (2) how the safety, the security, and the efficiency of the National Airspace System will be affected if airports' year 2000 preparations … more
Date: January 29, 1999
Creator: United States. General Accounting Office.
open access

Yellow Rain and Related Issues: Implications for the United States

Description: The United States has charged that the Soviet Union is implicated in the use of chemical weapons in Afghanistan and of chemical and toxin weapons, including the toxin known as "Yellow Rain," in Laos and Kampuchea (Cambodia). These charges raise two significant sets of issues: First, issues surrounding the evidence that has been presented to show: (a) that such weapons have been used and (b) that the Soviet Union is implicated in this use. Second, issues connected with the implications of Soviet… more
Date: September 29, 1983
Creator: Bowman, Steven R.
open access

Yellowstone as an Analog for Thermal-Hydrological-Chemical Processes at Yucca Mountain

Description: Enhanced water-rock interaction resulting from the emplacement of heat-generating nuclear waste in the potential geologic repository at Yucca Mountain, Nevada, may result in changes to fluid flow (resulting from mineral dissolution and precipitation in condensation and boiling zones, respectively). Studies of water-rock interaction in active and fossil geothermal systems (natural analogs) provide evidence for changes in permeability and porosity resulting from thermal-hydrological-chemical (THC… more
Date: May 29, 2001
Creator: Dobson, P. F.; Kneafsey, T. J.; Simmons, A. & Hulen, J.
open access

Yield Functions and Plastic Potentials for BCC Metals and Possibly Other Materials

Description: Yield functions and plastic potentials are expressed in terms of the invariants of the stress tensor for polycrystalline metals and other isotropic materials. The plastic volume change data of Richmond is used to evaluate the embedded materials properties for some bcc metals and one polymer. A general form for the plastic potential is found that is intended to represent and cover a wide range of materials types.
Date: September 29, 2005
Creator: Christensen, R M
open access

You Have the Power campaign. Final technical report for the period January 1, 1999 through September 30, 1999

Description: The Federal Energy Management Program (FEMP) must help Federal agencies reduce energy costs by delivering effective outreach programs. It is crucial that all professionals involved with the management of Federal facilities receive a clear message that FEMP offers effective information, education, tools, training, and resources. To achieve this objective, American Ideas and Designs, Inc., d/b/a Greening America, assisted FEMP in continuing a comprehensive energy efficiency outreach program title… more
Date: October 29, 1999
Creator: Costello, Carl D.
open access

Z-Contrast STEM Imaging and Ab-Initio Calculations of Grain Boundaries in SrTiO

Description: The understanding of electrical properties of grain boundaries in perovskites is essential for their application to capacitors, varistors and positive-temperature coefficient resistors. The origin of the electrical activity is generally attributed to the existence of charged defects in grain boundaries, usually assumed to be impurities, which set up a double Schottky barrier as they are screened by dopants in the adjacent bulk crystal. Microscopic understanding of the origin of the grain bounda… more
Date: November 29, 1999
Creator: Kim, M.; Browning, N. D.; Pennyscook, S. J.; Sohlberg, K. & Pantelides, S. T.
open access

Zero-angle-of-attack performance of two-dimensional inlets near Mach number 3

Description: An extensive program was undertaken to investigate the effect of several geometric variables on the performance of two-dimensional inlets. This investigation included inlets having single-wedge, double-wedge, and isentropic compression ramps with various side-plate configurations and subsonic diffusers. The tests were conducted over a range of Reynolds number based on inlet height from 0.50 to 2.67(sup x)10(sup 6). Generally, the performance levels of the two-dimensional inlets were somewhat be… more
Date: February 29, 1956
Creator: Woollett, Richard R. & Connors, James F.
open access

Zika Virus in Latin America and the Caribbean: U.S. Policy Considerations

Description: This report provides background information on the Zika virus, discusses challenges faced by governments and implementing partners in the Latin America and Caribbean region that are attempting to control the ongoing outbreak, and analyzes these issues in the context of the U.S. Zika response.
Date: June 29, 2016
Creator: Ribando Seelke, Clare; Salaam-Blyther, Tiaji & Beittel, June S.
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