UNT Libraries Government Documents Department - 227 Matching Results

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Aberration correction for analytical in situ TEM - the NTEAM concept.

Description: Future aberration corrected transmission electron microscopes (TEM) will have a strong impact in materials science, since such microscopes yield information on chemical bonding and structure of interfaces, grain boundaries and lattice defects at an atomic level. Beyond this aberration correction offers new possibilities for in situ experiments performed under controlled temperature, magnetic field, strain etc. at atomic resolution. Such investigations are necessary for solving problems arising … more
Date: March 5, 2002
Creator: Kabius, B.; Allen, C. W. & Miller, D. J.
Item Type: Refine your search to only Article
open access

Accelerator physics and technology limitations to ultimate energy and luminosity in very large hadron colliders

Description: The following presents a study of the accelerator physics and technology limitations to ultimate energy and luminosity in very large hadron colliders (VLHCs). The main accelerator physics limitations to ultimate energy and luminosity in future energy frontier hadron colliders are synchrotron radiation (SR) power, proton-collision debris power in the interaction regions (IR), number of events-per-crossing, stored energy per beam and beam-stability [1]. Quantitative estimates of these limits were… more
Date: December 5, 2002
Creator: al., P. Bauer et
Item Type: Refine your search to only Article
open access

Advanced Techniques for Fourier Transform Wavefront Reconstruction

Description: The performance of Fourier transform (FT) reconstructors in large adaptive optics systems with Shack-Hartmann sensors and a deformable mirror is analyzed. FT methods, which are derived for point-based geometries, are adapted for use on the continuous systems. Analysis and simulation show how to compensate for effects such as misalignment of the deformable mirror and wavefront sensor gain. Further filtering methods to reduce noise and improve performance are presented. All these modifications ca… more
Date: August 5, 2002
Creator: Poyneer, L A
Item Type: Refine your search to only Article
open access

Airport Improvement Program

Description: This issue brief discusses the Airport Improvement Program and its complement, the Passenger Facility Charge (PFC). After a brief history of federal support for airport construction and improvement, the report describes AIP funding, its source of revenues, funding distribution, the types of projects the program funds, AIP and PFC policy issues, and the allowable use of AIP funds for airport security purposes.
Date: September 5, 2002
Creator: Kirk, Robert S.
Item Type: Refine your search to only Report
open access

Alaska's North Slope: Requirements for Restoring Lands After Oil Production Ceases

Description: A chapter report issued by the General Accounting Office with an abstract that begins "This report discusses the nature and extent of dismantlement, removal, and restoration requirements for oil industry activities that are occurring on both federal and state lands located on the North Slope of the state of Alaska. The state of Alaska, which owns the lands where most of the North Slope's current oil production occurs, has adopted general dismantlement, removal, and restoration requirements that… more
Date: June 5, 2002
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
open access

Appropriations for FY2002: Energy and Water Development

Description: Appropriations are one part of a complex federal budget process that includes budget resolutions, appropriations (regular, supplemental, and continuing) bills, rescissions, and budget reconciliation bills. This report is a guide to one of the 13 regular appropriations bills that Congress passes each year. It is designed to supplement the information provided by the House and Senate Appropriations Subcommittees on Energy and Water.
Date: February 5, 2002
Creator: Behrens, Carl E. & Humphries, Marc
Item Type: Refine your search to only Report
open access

Assessing mixtures risks for cleanup and stewardship.

Description: The U.S. Department of Energy (DOE) is responsible for addressing contamination from past research, production, and disposal activities at over 100 sites and facilities across the country. Use of emerging science to assess risks for these facilities is the key to defining appropriate solutions. Safely managing contamination is a priority to protect workers in the near term, and sustained protection is a priority for local communities over the long term. The Department conducts its environmental… more
Date: March 5, 2002
Creator: MacDonell, M. M. & Hertzberg, R.
Item Type: Refine your search to only Article
open access

Assessment of Nonnative Invasive Plants in the DOE Oak Ridge National Environmental Research Park

Description: The Department of Energy (DOE) National Environmental Research Park at Oak Ridge, Tennessee, is composed of second-growth forest stands characteristic of much of the eastern deciduous forest of the Ridge and Valley Province of Tennessee. Human use of natural ecosystems in this region has facilitated the establishment of at least 167 nonnative, invasive plant species on the Research Park. Our objective was to assess the distribution, abundance, impact, and potential for control of the 18 most ab… more
Date: November 5, 2002
Creator: Drake, S. J.
Item Type: Refine your search to only Report
open access

Autophosphorylation of the DNA-Dependent Protein Kinase Catalyticsubunit is Required for Rejoining of DNA Double-Strand Breaks

Description: This report is a descriptive journey of the Autophosphorylation of the DNA-Dependent Protein Kinase Catalyticsubunit is Required for Rejoining of DNA Double-Strand Breaks.
Date: June 5, 2002
Creator: Chan, Doug W.; Chen, Benjamin Ping-Chi; Yang, Shun-Jen; Singh,Sheela; Murphy, Michael B.; Kurimasa, Akihiro et al.
Item Type: Refine your search to only Article
open access

Background Radioactivity in River and Reservoir Sediments near Los Alamos, New Mexico

Description: As part of its continuing Environmental Surveillance Program, regional river and lake-bottom sediments have been collected annually by Los Alamos National Laboratory (the Laboratory) since 1974 and 1979, respectively. These background samples are collected from three drainage basins at ten different river stations and five reservoirs located throughout northern New Mexico and southern Colorado. Radiochemical analyses for these sediments include tritium, strontium-90, cesium-137, total uranium, … more
Date: May 5, 2002
Creator: McLin, Stephen G. & Lyons, Dale W.
Item Type: Refine your search to only Report
open access

Basin Analysis of the Mississippi Interior Salt Basin and Petroleum System Modeling of the Jurassic Smackover Formation, Eastern Gulf Coastal Plain, Final Report and Topical Reports 5-8 on Smackover Petroleum system and Underdevelopment Reservoirs

Description: The Smackover Formation, a major hydrocarbon-producing horizon in the Mississippi Interior Salt Basin (MISB), conformably overlies the Norphlet Formation and is conformably overlain by the Buckner Anhydrite Member of the Haynesville Formation. The Norphlet-Smackover contact can be either gradational or abrupt. The thickness and lithofacies distribution of the Smackover Formation were controlled by the configuration of incipient paleotopography. The Smackover Formation has been subdivided into t… more
Date: March 5, 2002
Creator: Mancini, Ernest A.; Puckett, T. Markham; Parcell, William C.; Llinas, Juan Carlos; Kopaska-Merkel, David C. & Townsend, Roger N.
Item Type: Refine your search to only Report
open access

Battlefield Utility of Antipersonnel Landmines and Proposed Alternatives (Analysis in Support of the NATO SAS-023 APM Study)

Description: This study consists of work done in support of the U.S. delegation to the NATO SAS-023 Antipersonnel Landmine Study Group, supplemented by additional work done for the U.S. Office of the Secretary of Defense Antipersonnel Landmine Alternative Concept Exploration Program (Track III). It explores the battlefield utility of current antipersonnel landmines (APL) in both pure and mixed APL/antitank minefields and evaluates the value of military suggested non-materiel alternatives. The historical rec… more
Date: February 5, 2002
Creator: Crandley, J. F., Jr.; Greenwalt, R. J., Jr.; Magnoli, D. E. & Randazzo, A. S.
Item Type: Refine your search to only Report
open access

Beam Effects from an Increase of LINAC Current from 40 ma to 49 Milliamperes

Description: On March 25, 2002 the FNAL Linac had been running at a decreased 40 ma of beam current for some time. Both the 400 MeV Linac and the 8GeV Booster had been tuned to optimum running during that time. Optimum running for the Booster was at 4.1e12 per pulse. Losses at injection and at transition were limiting intensity at the time. By March 26, 2002 the Linac beam current had been increased to 49 ma. The optimum Booster intensity immediately jumped to 4.5e12 per pulse and increased in the next few … more
Date: June 5, 2002
Creator: Tomlin, Ray
Item Type: Refine your search to only Report
open access

Bosnia: U.S. Military Operations

Description: This report outlines U.S. military operations in Bosnia and discusses issues such as U.S. and Allied Participation in Bosnia Peacekeeping (IFOR/SFOR), duration, cost, arms control and military assistance. This report also includes most recent development, background analysis, and legislation.
Date: August 5, 2002
Creator: Bowman, Steven R.
Item Type: Refine your search to only Report
open access

BSW Well Evaluation Report

Description: The BSW series wells are located in the Mixed Waste Management Facility and are part of the groundwater monitoring program at Savannah River Site. These wells have had persistent problems that prevent successful sampling that dates back to their installation. Only thirty-two of the fifty-three BSW wells were successfully sampled during 4th quarter, 2001. These problems were previously investigated by looking at field sampling logbooks from 4th quarter 2001 and other background information to tr… more
Date: September 5, 2002
Creator: Noonkester, J.V.
Item Type: Refine your search to only Report
open access

D.C. Family Court: Progress Made Toward Planned Transition and Interagency Coordination, but Some Challenges Remain

Description: Testimony issued by the General Accounting Office with an abstract that begins "The District of Columbia Superior Court has made progress in planning the transition of its Family Division to a Family Court, but some challenges remain. The Superior Court's transition plan addresses most, but not all, of the required elements outlined in the District of Columbia Family Court Act of 2001. Significantly, the completion of the transition hinges on timely completion of a complex series of interdepend… more
Date: June 5, 2002
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
open access

CALCIUM CARBONATE PRODUCTION BY COCCOLITHOPHORID ALGAE IN LONG TERM, CARBON DIOXIDE SEQUESTRATION

Description: Predictions of increasing levels of anthropogenic carbon dioxide (CO{sub 2}) and the specter of global warming have intensified research efforts to identify ways to sequester carbon. A number of novel avenues of research are being considered, including bioprocessing methods to promote and accelerate biosequestration of CO{sub 2} from the environment through the growth of organisms such as coccolithophorids, which are capable of sequestering CO{sub 2} relatively permanently. Calcium and magnesiu… more
Date: April 5, 2002
Creator: V.J. Fabry, Ph.D.
Item Type: Refine your search to only Report
open access

Carbon Resistor Pressure Gauge Calibration at Stresses Up to 1 GPa

Description: Calibration of the 470-Ohm carbon resistor gauge is desired in the low stress region up to 1 GPa. A split-Hopkinson pressure bar, drop tower apparatus, gas pressure chamber, and gas gun have been used to perform the calibration experiments. The gauge behavior at elevated temperature was also investigated by heating the resistors to 200 C at atmospheric pressure while observing the resistance change. The motivation for this calibration work arises from the desire to increase the number of data p… more
Date: March 5, 2002
Creator: Vandersall, K S; Niles, A M; Greenwood, D W; Cunningham, B; Garcia, F & Forbes, J W
Item Type: Refine your search to only Article
open access

Casting Characteristics of Aluminum Die Casting Alloys

Description: The research program investigates the casting characteristics of selected aluminum die casting alloys. Specifically, the alloys' tendencies towards die soldering and sludge formation, and the alloys' fluidity and machinability are evaluated. It was found that: When the Fe and Mn contents of the alloy are low; caution has to be taken against possible die soldering. When the alloy has a high sludge factor, particularly a high level of Fe, measures must be taken to prevent the formation of large h… more
Date: February 5, 2002
Creator: Makhlouf, Makhlouf M. & Apelian, Diran
Item Type: Refine your search to only Report
open access

Cesium-137 in the Sediments of Fourmile Creek

Description: The Nonproliferation Technology Section (NTS) was requested by the Environmental Restoration Division (ER) to aid in completing ground-truth measurements of aerial overflight data in support of the Integrator Operable Unit (IOU) program at the Savannah River Site (SRS). The IOU's at the SRS are under investigation as a possible pathway for the release of contamination from past SRS activities to off-unit receptors and the environment. The IOU's are defined as surface water bodies and associated… more
Date: December 5, 2002
Creator: Beals, D.M.
Item Type: Refine your search to only Report
open access

Chamber wall response to target implosion in inertial fusion reactors : new and critical assessments.

Description: The chamber walls in inertial fusion energy (IFE) reactors are exposed to harsh conditions following each target implosion. Key issues of the cyclic IFE operation include intense photon and ion deposition, wall thermal and hydrodynamic evolution, wall erosion and fatigue lifetime, and chamber clearing and evacuation to ensure desirable conditions prior to target implosion. Several methods for wall protection have been proposed in the past, each having its own advantages and disadvantages. These… more
Date: August 5, 2002
Creator: Hassanein, A. & Morozov, V.
Item Type: Refine your search to only Article
open access

Characterization of high performance electrochemical systems for portable power. Final report for period September 15, 1993 - December 31, 2001

Description: The long-term objective of research has been to perform the enabling materials research necessary for the development of a battery oriented to the consumer market with special requirements in terms of safety, cycling life, and high specific energy and power. We have discovered novel processing of V{sub 2}O{sub 5} gels that leads to aerogel (ARG) and xerogel (XRG) films with specific energy and Li insertion capacity that are much higher than for other amorphous or crystalline forms of V{sub 2}O{… more
Date: September 5, 2002
Creator: Smyrl, W. H. & Owens, B. B.
Item Type: Refine your search to only Report
open access

Chemical Weapons Convention: Issues for Congress

Description: The CWC bans the development, production, stockpiling, and use of chemical weapons by members signatories. It also requires the destruction of all chemical weapons stockpiles and production facilities. Neither the United States nor Russia will be able to meet the original CWC’s deadlines for destruction of their CW stockpiles, and have been granted extensions to at least 2012. The Convention provides the most extensive and intrusive verification regime of any arms control treaty, extending its … more
Date: August 5, 2002
Creator: Bowman, Steven R.
Item Type: Refine your search to only Report
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