Resource Type

Linear Collider Physics Resource Book for Snowmass 2001 (open access)

Linear Collider Physics Resource Book for Snowmass 2001

The American particle physics community can look forward to a well-conceived and vital program of experimentation for the next ten years, using both colliders and fixed target beams to study a wide variety of pressing questions. Beyond 2010, these programs will be reaching the end of their expected lives. The CERN LHC will provide an experimental program of the first importance. But beyond the LHC, the American community needs a coherent plan. The Snowmass 2001 Workshop and the deliberations of the HEPAP subpanel offer a rare opportunity to engage the full community in planning our future for the next decade or more. A major accelerator project requires a decade from the beginning of an engineering design to the receipt of the first data. So it is now time to decide whether to begin a new accelerator project that will operate in the years soon after 2010. We believe that the world high-energy physics community needs such a project. With the great promise of discovery in physics at the next energy scale, and with the opportunity for the uncovering of profound insights, we cannot allow our field to contract to a single experimental program at a single laboratory in the world. …
Date: May 3, 2001
Creator: Abe, T.; Dawson, S.; Heinemeyer, S.; Marciano, W.; Paige, F.; Turcot, A. S. et al.
System: The UNT Digital Library
A Fundamental Study of Dispersed Multiphase Flows at Small Scales (open access)

A Fundamental Study of Dispersed Multiphase Flows at Small Scales

The purpose of the research supported by this grant was two-fold: I, to continue our earlier studies on the rheology of suspensions of non-colloidal particles; and, II, to study the transport of a nano-sized particle through a fluid-filled nano-channel using molecular dynamics simulations. In I, we investigated, by means of Stokesian Dynamics simulations, the dynamics of concentrated suspensions and discovered that their statistical properties could be described, even for particle concentrations up to 20%, by means of an analytical theory of pair-particle interactions, provided that pair-doublets are assumed to be totally absent. We also provided a quantitative explanation of the fascinating banding phenomenon of particle axial segregation which was observed when a suspension of neutrally buoyant particles was sheared in a partially filled horizontal Couette device or in a rotating horizontal cylinder. In II, independently of the shape and the relative size of the particle, we find two distinct regimes as a function of the degree of wetting, with a sharp transition between them. Specifically, in a highly wetting suspending fluid, the particle moves through the cylinder with an average axial velocity in agreement with that obtained from the solution of the continuum Stokes equations. In contrast, in the case …
Date: May 3, 2005
Creator: Acrivos, Andreas; Khusid, Boris & Koplik, Joel
System: The UNT Digital Library
Boron-enhanced diffusion of boron from ultralow-energy boron implantation (open access)

Boron-enhanced diffusion of boron from ultralow-energy boron implantation

The authors have investigated the diffusion enhancement mechanism of BED (boron enhanced diffusion), wherein the boron diffusivity is enhanced three to four times over the equilibrium diffusivity at 1,050 C in the proximity of a silicon layer containing a high boron concentration. It is shown that BED is associated with the formation of a fine-grain polycrystalline silicon boride phase within an initially amorphous Si layer having a high B concentration. For 0.5 keV B{sup +}, the threshold implantation dose which leads to BED lies between 3 {times} 10{sup 14} and of 1 {times} 10{sup 15}/cm{sup {minus}2}. Formation of the shallowest possible junctions by 0.5 keV B{sup +} requires that the implant dose be kept lower than this threshold.
Date: May 3, 1998
Creator: Agarwal, A.; Eaglesham, D.J.; Gossmann, H.J.; Pelaz, L.; Herner, S.B.; Jacobson, D.C. et al.
System: The UNT Digital Library
ISCR annual report FY 1998 (open access)

ISCR annual report FY 1998

Advances in scientific computing research have never been more vital to the core missions of Lawrence Livermore National Laboratory than they are today. These advances are evolving so rapidly, and over such a broad front of computational science, that to remain on the leading edge, the Laboratory must collaborate with many academic centers of excellence. In FY 1998, ISCR dramatically expanded its interactions with academia through collaborations, visiting faculty, guests and a seminar series. The pages of this annual report summarize the activities of the 63 faculty members and 34 students who participated in ISCR collaborative activities during FY 1998. The 1998 ISCR call for proposals issued by the University Collaborative Research Program (UCRP) resulted in eight awards made by the University of California Office of the President to research teams at UC San Diego, UC Davis, UC Los Angeles, and UC Berkeley. These projects are noted. ISCR is now part of the Laboratory�s Center for Applied Scientific Computing (CASC). Many CASC scientists participate actively in ISCR�University collaborations, as noted. The eight collaborations shown represent innovative research efforts supported by ISCR in FY 1998. Abstracts discussing each of these collaborations begin on page 79. The Accelerated Strategic Computing Initiative (ASCI) …
Date: May 3, 1999
Creator: Alchorn, A & Fitzgerald, J M
System: The UNT Digital Library
Subsidy and Subsidy-Like Programs of the U.S Federal Government, Fiscal Years 1970-1975 (open access)

Subsidy and Subsidy-Like Programs of the U.S Federal Government, Fiscal Years 1970-1975

This report is about the subsidy and subsidy-like programs of the U.S Federal Government for the fiscal year 1970-1975.
Date: May 3, 1974
Creator: Allen, Julius W.
System: The UNT Digital Library
Tanks Focus Area (TFA) Site Needs Assessment FY 1999 (open access)

Tanks Focus Area (TFA) Site Needs Assessment FY 1999

This report documents the process used by the Tanks Focus Area (TFA) to analyze and develop responses to technology needs submitted by five major U.S. Department of Energy (DOE) sites with radioactive tank waste problems, and the initial results of the analysis. The sites are the Hanford Site, Idaho National Engineering and Environmental Laboratory (INEEL), Oak Ridge Reservation (ORR), Savannah River Site (SRS), and West Valley Demonstration Project (WVDP). This is the fifth edition of the TFA site needs assessment. As with previous editions, this edition serves to provide the basis for accurately defining the TFA program for the upcoming fiscal year (FY), and adds definition to the program for up to 4 additional outyears. Therefore, this version distinctly defines the FY 2000 progrti and adds further definition to the FY 2001- FY 2004 program. Each year, the TFA reviews and amends its program in response to site users' science and technology needs.
Date: May 3, 1999
Creator: Allen, RW
System: The UNT Digital Library
Renewable Energy and Environmental Sustainability Using Biomass From Dairy and Beef Animal Production: Final Report, Volume 1 (open access)

Renewable Energy and Environmental Sustainability Using Biomass From Dairy and Beef Animal Production: Final Report, Volume 1

The Texas Panhandle is regarded as the 'Cattle Feeding Capital of the World', producing 42% of the fed beef cattle in the United States within a 200-mile radius of Amarillo generating more than 5 million tons of feedlot manure/year. Apart from feedlots, the Bosque River Region in Erath County, just north of Waco, Texas with about 110,000 dairy cattle in over 250 dairies, produces 1.8 million tons of manure biomass (excreted plus bedding) per year. While the feedlot manure has been used extensively for irrigated and dry land crop production, most dairies, as well as other concentrated animal feeding operations (CAFO's), the dairy farms utilize large lagoon areas to store wet animal biomass. Water runoff from these lagoons has been held responsible for the increased concentration of phosphorus and other contaminates in the Bosque River which drains into Lake Waco - the primary source of potable water for Waco's 108,500 people. The concentrated animal feeding operations may lead to land, water, and air pollution if waste handling systems and storage and treatment structures are not properly managed. Manure-based biomass (MBB) has the potential to be a source of green energy at large coal-fired power plants and on smaller-scale combustion systems …
Date: May 3, 2012
Creator: Annamalai, Kalyan; Sweeten, John M.; Auvermann, Brent W.; Muhtar, Saqib; Caperada, Sergio; Engler, Cady R. et al.
System: The UNT Digital Library
Science and Technology Review June 2005 (open access)

Science and Technology Review June 2005

This is the articles in this month's issue: (1) Close Collaborations Advance Progress in Genomic Research--Commentary by Elbert Branscomb; (2) Mining Genomes--Livermore computer programs help locate the stretches of DNA in gene deserts that regulate protein-making genes; (3) Shedding Light on Quantum Physics--Laboratory laser research builds from the foundation of Einstein's description of the quantization of light. (4) The Sharper Image for Surveillance--Speckle imaging-an image-processing technique used in astronomy is bringing long-distance surveillance into sharper focus. (5) Keeping Cool Close to the Sun--The specially coated gamma-ray spectrometer aboard the MESSENGER spacecraft will help scientists determine the abundance of elements in Mercury's crust.
Date: May 3, 2005
Creator: Aufderheide, M
System: The UNT Digital Library
The Debt Limit: History and Recent Increases (open access)

The Debt Limit: History and Recent Increases

This report presents the means through which the total debt of the federal government can increase, gives a historical overview of debt limits, and discusses how the current economic slowdown has led to higher deficits and thereby a series of debt limit increases, as well as legislation related to these increases.
Date: May 3, 2013
Creator: Austin, D. Andrew & Levit, Mindy R.
System: The UNT Digital Library
SEARCH FOR THE RARE KAON DECAY K{sup +} {yields} {pi}{sup +} {nu}{bar {nu}} (open access)

SEARCH FOR THE RARE KAON DECAY K{sup +} {yields} {pi}{sup +} {nu}{bar {nu}}

This thesis describes the search for the rare decay K{sup +} {yields} {pi}{sup +} {nu}{bar {nu}} in the pion momentum region 140 MeV/c {le} P{sub {pi}{sup +}} {le} 195 MeV/c. This is a Flavor Changing Neutral Current (FCNC) decay which is forbidden to the first order in the Standard Model (SM) by the GIM mechanism. However, this decay mode is allowed in the second order by two Z-Penguin and one box diagram and is expected to have a branching ratio of (0.72 {+-} 0.21) x 10{sup -10}. This decay mode is sensitive to the coupling of top to down quark and therefore a measurement of the branching ratio for this decay mode provides a measurement of the Cabibbo-Kobayashi-Maskawa matrix element V{sub td}. The recent observation of two events in the pion momentum region 211 MeV/c {le} P{sup {pi}{sup +}} {le} 229 MeV/c estimates a branching ratio of 1.57{sub -0.82}{sup +1.75} x 10{sup -10} for the same decay mode. We have extended the search for this decay to the lower pion momentum region. Data collected by the Experiment E787 at Brookhaven National Laboratory during the 1996 and 1997 run were analyzed in this thesis.
Date: May 3, 2003
Creator: BHUYAN,B.
System: The UNT Digital Library
Gamma Ray Measurements at the BSR, Experiment II, Iron - Water (open access)

Gamma Ray Measurements at the BSR, Experiment II, Iron - Water

This report provides a table that summarizes the data taken from investigations of gamma radiation of the Bulk Shielding Reactor in an iron-water mixture. The results are plotted on a graph also provided in this document.
Date: May 3, 1951
Creator: Ballweg, L. H.
System: The UNT Digital Library
Part A. An X-ray Spectrometer for Use in Radioactivity Measurements, the L X-rays of Neptunium and Plutonium. Part B. Some Lighter Isotopes of Astatine (open access)

Part A. An X-ray Spectrometer for Use in Radioactivity Measurements, the L X-rays of Neptunium and Plutonium. Part B. Some Lighter Isotopes of Astatine

The following report contains two parts on the analysis of astatine, neptunium and plutonium. Part A discusses a bent crystal focusing X-ray spectrometer that has been designed and built for the observation of the X-and gamma-rays emitted in association with radioactive decay. The instrument uses proportional counter detection and is described, as well as associated electronic circuits. The plutonium L X-rays from Cm-242 and the neptunium L X-rays from Am-241 have been measures. Values of the energies and abundances are reported. Then in Part B, it discusses some isotopes of astatine hitherto unreported that have been observed in bombardments of bismuth on the University of California 184" cyclotron.
Date: May 3, 1950
Creator: Barton, George Wendell
System: The UNT Digital Library
Federal Farm Promotion ("Check-off") Programs (open access)

Federal Farm Promotion ("Check-off") Programs

This report discusses legislation establishing national generic promotion ("check-off') programs for 20 specified farm commodities. Thirteen of the 20 authorized programs are now in effect.
Date: May 3, 1996
Creator: Becker, Geoffrey S.
System: The UNT Digital Library
The 2002 Farm Bill: Overview and Status (open access)

The 2002 Farm Bill: Overview and Status

The Federal Agriculture Improvement and Reform, or FAIR, Act of 1996 (commonly known as the "farm bill"), which was due to expire in 2002, is expected to be extended for another six years when President Bush signs the bill into law. This report discusses the provisions of the new "farm bill," including the federal spending involved.
Date: May 3, 2002
Creator: Becker, Geoffrey S. & Womach, Jasper
System: The UNT Digital Library
The Effect of Air Space on Sub-Fabric Burns in Swine (open access)

The Effect of Air Space on Sub-Fabric Burns in Swine

None
Date: May 3, 1957
Creator: Berkley, K. M.
System: The UNT Digital Library
Sign-Selected Quadrupole Train (open access)

Sign-Selected Quadrupole Train

The design of the Sign-Selected Quadrupole Train for E-815 (NuTeV) is set forth. The relevant physics requirements are explained. The optics of the beam are presented, along with an explanation of the proton dumping scheme. A discussion of rates and backgrounds follows, with special care given to backgrounds from scraping and obstructions. The relevant tolerances for beam construction are given and justified by simulations of the beamline. This leads to a discussion of the beam monitoring.
Date: May 3, 1994
Creator: Bernstein, R.
System: The UNT Digital Library
HANFORD TANK CLEANUP UPDATE APRIL 2010 (open access)

HANFORD TANK CLEANUP UPDATE APRIL 2010

None
Date: May 3, 2010
Creator: Berriochoa, M. V.
System: The UNT Digital Library
Nuclear Waste Repository Siting: Expedited Procedures for Congressional Approval (open access)

Nuclear Waste Repository Siting: Expedited Procedures for Congressional Approval

None
Date: May 3, 2002
Creator: Beth, Richard S.
System: The UNT Digital Library
Performance Characterization of LLNL HPC Codes (open access)

Performance Characterization of LLNL HPC Codes

None
Date: May 3, 2013
Creator: Bhatele, A.
System: The UNT Digital Library
Clean Energy Standard: Potential Qualifying Energy Sources (open access)

Clean Energy Standard: Potential Qualifying Energy Sources

This report begins with a brief examination of clean energy, renewable energy, and alternative energy. It then presents possible selection criteria Congress could use to determine which sources could be eligible for a CES depending on the goal(s) of the CES. The report provides an overview of the energy sources most commonly discussed as potential CES qualifying sources: biomass, fossil fuels (natural gas combined-cycle and coal-fired power plants with carbon capture and sequestration), geothermal resources, nuclear, solar, water, and wind. The report describes where each source can be found in the United States, the estimated quantity available for electricity generation, technologies used to create electricity from the source, advantages and disadvantages of using the source for electricity generation, and policy implications should the source be included in a CES.5 The report also contains a section on energy efficiency and its potential inclusion in a CES.
Date: May 3, 2011
Creator: Bracmort, Kelsi; Folger, Peter; Holt, Mark; Ratner, Michael & Sissine, Fred
System: The UNT Digital Library
Computer-Aided dispatching system design specification (open access)

Computer-Aided dispatching system design specification

This document defines the performance requirements for a graphic display dispatching system to support Hanford Patrol emergency response. This system is defined as a Commercial-Off the-Shelf computer dispatching system providing both text and graphical display information while interfacing with the diverse reporting system within the Hanford Facility. This system also provided expansion capabilities to integrate Hanford Fire and the Occurrence Notification Center and provides back-up capabilities for the Plutonium Processing Facility.
Date: May 3, 1996
Creator: Briggs, M. G.
System: The UNT Digital Library
Global Taxation and the United Nations: A Review of Proposals (open access)

Global Taxation and the United Nations: A Review of Proposals

A discussion of the possibility of the United Nations promoting and planning imposition of international taxation on U.N. member states, including the United States was initiated in response to the March 2002 U.N.-sponsored International Conference on Financing for Development, held in Monterrey, Mexico.
Date: May 3, 2002
Creator: Browne, Marjorie Ann
System: The UNT Digital Library
Electronic Employment Eligibility Verification (open access)

Electronic Employment Eligibility Verification

This report is categorized into Five Categories: (I) Background, (II) E-Verify, (III) Recent Proposals on Electronic Employment Verification, (IV) Policy Considerations and (V) Conclusion.
Date: May 3, 2012
Creator: Bruno, Andorra
System: The UNT Digital Library
The Lagrangian Multiplier Method of Finding Upper and Lower Limits to Critical Stresses of Clamped Plates (open access)

The Lagrangian Multiplier Method of Finding Upper and Lower Limits to Critical Stresses of Clamped Plates

"The theory of Lagrangian multipliers is applied to the problem of finding both upper and lower limits to the true compressive buckling stress of a clamped rectangular plate. The upper and lower limits thus bracket the true stress, which cannot be exactly found by the differential-equation approach. The procedure for obtaining the upper limit, which is believed to be new, presents certain advantages over the classical Rayleigh-Ritz method of finding upper limits" (p. 213).
Date: May 3, 1946
Creator: Budiansky, Bernard & Hu, Pai C.
System: The UNT Digital Library