UNT Libraries Government Documents Department - 503 Matching Results

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1995 Annual report on waste generation and waste mainization progress as required by DOE order 5400.1, Hanford site

Description: While waste generation numbers are important, the true measure of success is waste minimized. Many Waste Minimization/Pollution Prevention (WMin/P2) successes at the Hanford Site occur every day without formal recognition as pollution prevention, as they have become part of a culture of best management practices. As an example, the success of the excess and reuse program, both informal and formal, documents the Wmin/P2 culture that exists in the pollution prevention representatives and employee… more
Date: September 24, 1996
Creator: Betsch, M. D.
Item Type: Refine your search to only Report
open access

2004 Initial Assessments for the T and TX TY Tank Farm Field Investigation Report (FIR): Numerical Simulations

Description: In support of CH2M HILL Hanford Group, Inc.’s (CHG) preparation of a Field Investigative Report (FIR) for the Hanford Site Single-Shell Tank Waste Management Area (WMA) T and TX-TY, a suite of numerical simulations of flow and solute transport was executed using the STOMP code to predict the performance of surface barriers for reducing long-term risks from potential groundwater contamination at the T and TX-TY WMA. The scope and parametric data for these simulations were defined by a modeling d… more
Date: September 24, 2004
Creator: Zhang, Z. F.; Freedman, Vicky L. & Waichler, Scott R.
Item Type: Refine your search to only Report
open access

4th generation light source instrumentation.

Description: This working group on 4th Generation Light Source (4GLS) Instrumentation was a follow-up to the opening-discussion on Challenges in Beam Profiling. It was in parallel with the Feedback Systems session. We filled the SSRL Conference Room with about 25 participants. The session opened with an introduction by Lumpkin. The target beam parameter values for a few-angstrom, self-amplified spontaneous emissions (SASE) experiment and for a diffraction-limited soft x-ray storage ring source were addresse… more
Date: September 24, 1998
Creator: Lumpkin, A.
Item Type: Refine your search to only Article
open access

Absorptance measurements of transmissive optical components by the surface thermal lensing technique

Description: The surface thermal lensing technique (STL) successfully resolved and measured the absorptance of transmissive optical components: near- normal angle-of-incidence anti-reflectors and beam splatters. The STL system uses an Ar ion laser to pump the components at 514.5 mn. The absorptance-induced surface deformation diffracts the HeNe probe beam into a photo-detector. The signal intensity was calibrated with a sample of known absorptance. The optical components were designed to function in a coppe… more
Date: September 24, 1997
Creator: Chow, R.; Taylor, J. R.; Wu, Z. L.; Han, Y. & Tian, L. Y.
Item Type: Refine your search to only Article
open access

The Acid Hydrolysis Mechanism of Acetals Catalyzed by a Supramolecular Assembly in Basic Solution

Description: A self-assembled supramolecular host catalyzes the hydrolysis of acetals in basic aqueous solution. The mechanism of hydrolysis is consistent with the Michaelis-Menten kinetic model. Further investigation of the rate limiting step of the reaction revealed a negative entropy of activation ({Delta}S{double_dagger} = -9 cal mol{sup -1}K{sup -1}) and an inverse solvent isotope effect (k(H{sub 2}O)/k(D{sub 2}O) = 0.62). These data suggest that the mechanism of hydrolysis that takes place inside the … more
Date: September 24, 2008
Creator: Pluth, Michael D.; Bergman, Robert G. & Raymond, Kenneth N.
Item Type: Refine your search to only Article
open access

Across-the-Board Tax Cuts: Economic Issues

Description: This report examines economic issues relating to across-the-board tax cuts, focusing primarily on distributional issues. The report is divided into four sections. The first section provides a general overview of the tax system. The next discusses recent proposals relating to across-the-board tax cuts. The third section discusses methods of evaluating alternative types of across-the-board tax cuts. The final section briefly discusses issues of efficiency, simplicity, and stabilization policy.
Date: September 24, 2001
Creator: Gravelle, Jane G.
Item Type: Refine your search to only Report
open access

Additional results of an investigation at transonic speeds to determine the effects of a heated propulsive jet on the drag characteristics of a series of related afterbodies

Description: From Introduction: "Presented in this report are the basic data obtained from investigation. The data are presented with limited analysis in order to expedite their availability to those concerned with jet-exit-afterbody design."
Date: September 24, 1956
Creator: Henry, Beverly Z., Jr. & Cahn, Maurice S.
Item Type: Refine your search to only Report
open access

Adjustable Permanent Quadrupoles Using Rotating Magnet Material Rods for the Next Linear Collider

Description: The proposed Next Linear Collider (NLC) will require over 1400 adjustable quadrupoles between the main linacs' accelerator structures. These 12.7 mm bore quadrupoles will have a range of integrated strength from 0.6 to 132 Tesla, with a maximum gradient of 135 Tesla per meter, an adjustment range of +0-20% and effective lengths from 324 mm to 972 mm. The magnetic center must remain stable to within 1 micrometer during the 20% adjustment. In an effort to reduce estimated costs and increase relia… more
Date: September 24, 2001
Creator: al., James T Volk et
Item Type: Refine your search to only Article
open access

Advancing the R&D of Mesoscale Nondestructive Characterization

Description: This Strategic Initiative (SI) will advance nondestructive characterization of mesoscale (millimeter-sized) objects-allowing micrometer resolution over the objects' entire volume. X-ray imaging will be developed that allows object characterization with materials that vary widely in composition, density, and geometry.
Date: September 24, 2004
Creator: Martz, H. E., Jr.; Aufderheide, M.; Barty, A.; Jackson, J.; Kallman, J. S.; Kozioziemski, B. et al.
Item Type: Refine your search to only Report
open access

Advancing the Technology R&D of Tabletop Mesoscale Nondestructive Characterization

Description: This Strategic Initiative (SI) will advance nondestructive characterization of mesoscale (millimeter-sized) objects--allowing micrometer resolution over the objects' entire volume. X-ray imaging will be developed that allows object characterization with materials that vary widely in composition, density, and geometry.
Date: September 24, 2004
Creator: Martz, H. E., Jr.; Aufderheide, M.; Barty, A.; Jackson, J. A.; Kallman, J. S.; Kozioziemski, B. et al.
Item Type: Refine your search to only Report
open access

Africa: U.S. Foreign Assistance Issues

Description: This report discusses the issue of U.S. economic assistance to sub-Saharan Africa, highlighting the importance of continued assistance in light of U.S. national security and also various U.S.-led efforts to promote reform amongst African citizens themselves. U.S. assistance finds its way to Africa through a variety of channels, including the USAID-administered DA program, food aid programs, and indirect aid provided through international financial institutions and the United Nations.
Date: September 24, 2001
Creator: Copson, Raymond W.
Item Type: Refine your search to only Report
open access

Agricultural Trade Issues in the 107th Congress

Description: The 107th Congress is considering trade issues with implications for the U.S. agricultural sector. Trade in agricultural commodities and food products affects farm income and rural employment, and it also generates economic activity beyond the farm gate. With agricultural export sales the equivalent of one-quarter of farm income, some policymakers view U.S. efforts to develop market opportunities overseas as vital to the sector’s financial health. Decisions taken by the Bush Administration, and… more
Date: September 24, 2002
Creator: Hanrahan, Charles E.; Becker, Geoffrey S. & Jurenas, Remy
Item Type: Refine your search to only Report
open access

Airport Passenger Screening: Preliminary Observations on Progress Made and Challenges Remaining

Description: A letter report issued by the General Accounting Office with an abstract that begins "Passenger screening is critical to the security of our nation's aviation system, particularly in the aftermath of the September 11, 2001, terrorist attacks. The Transportation Security Administration (TSA) is tasked with securing all modes of transportation, including the screening of airline passengers. TSA has met numerous requirements in this regard, such as deploying more than 50,000 federal screeners at o… more
Date: September 24, 2003
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
open access

Analysis of the carbon-related 'blue' luminescence in GaN

Description: The properties of a broad 2.86 eV photoluminescence band in carbon-doped GaN were studied as a function of C-doping level, temperature, and excitation density. The results are consistent with a C{sub Ga}-C{sub N} deep donor-deep acceptor recombination mechanism as proposed by Seager et al. For GaN:C grown by molecular-beam epitaxy (MBE) the 2.86 eV band is observed in Si co-doped layers exhibiting high n-type conductivity as well as in semi-insulating material. For low excitation density (4 W/c… more
Date: September 24, 2004
Creator: Armitage, R.; Yang, Q. & Weber, E.R.
Item Type: Refine your search to only Article
open access

Analysis Tools for Sizing and Placement of Energy Storage for Grid Applications - A Literature Review

Description: The purpose of this report was to review pertinent literature and studies that might reveal models capable of optimizing the siting, sizing and economic value of energy storage in the future smart grid infrastructure. Energy storage technology and utility system deployment have been subjects of intense research and development for over three decades. During this time, many models have been developed that consider energy storage implementation in the electric power industry and other application… more
Date: September 24, 2010
Creator: Hoffman, Michael G.; Kintner-Meyer, Michael CW; Sadovsky, Artyom & DeSteese, John G.
Item Type: Refine your search to only Report
open access

Analytical Results For MOX Colemanite Concrete Samples Received On September 4, 2013

Description: The Mixed Oxide Fuel Fabrication Facility (MFFF) will use colemanite bearing concrete neutron absorber panels credited with attenuating neutron flux in the criticality design analyses and shielding operators from radiation. The Savannah River National Laboratory (SRNL) is tasked with measuring the total density, partial hydrogen density, and partial boron density of the colemanite concrete. SRNL received three samples of colemanite concrete for analysis on September 4, 2013. The average total d… more
Date: September 24, 2013
Creator: Reigel, Marissa M.
Item Type: Refine your search to only Report
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