B physics in Run II (open access)

B physics in Run II

Run II at the Tevatron started on March 1, 2001 with a design instantaneous luminosity of 2 x 10{sup 32} cm{sup -2} s{sup -1}. The upgraded D0 detector is expected to collect 2 fb{sup -1} of data at {radical}s = 2.0 TeV in approximately 2 years. The D0 collaboration is planning to make measurements in a number of important areas of B physics, including sin(2{beta}), B{sub s} mixing, the {Lambda}{sub b} lifetime and rare B decays. In this note we describe the upgraded D0 detector and highlights of the B physics program in D0.
Date: October 7, 2002
Creator: Kuznetsov, Valentin E
Object Type: Article
System: The UNT Digital Library
Battery Power for Your Residential Solar Electric System: Better Buildings Series Solar Electric Fact Sheet (open access)

Battery Power for Your Residential Solar Electric System: Better Buildings Series Solar Electric Fact Sheet

This consumer fact sheet provides an overview of battery power for residential solar electric systems, including sizing, estimating costs, purchasing, and performing maintenance.
Date: October 1, 2002
Creator: unknown
Object Type: Text
System: The UNT Digital Library
Benefits and Costs of the Debt Relief Enhancement Act of 2002 (open access)

Benefits and Costs of the Debt Relief Enhancement Act of 2002

Correspondence issued by the General Accounting Office with an abstract that begins "Despite years of effort to provide debt relief to the world's poorest countries, these countries' debt problems still have not been resolved. In response to this situation, Congress introduced Senate Bill 2210, the Debt Relief Enhancement Act of 2002, to reduce these countries' debt service payments to manageable levels. The act proposes that no qualified country pay more than 10 percent of its revenue on external debt service or no more than 5 percent if the country suffers a public health crisis. GAO found that the act would immediately lower the debt service of countries that qualify for relief. It would cost $2.7 billion for 26 countries over the next 3 years and have no effect on long-term debt sustainability. If applied over a 20-year period, the act's provisions would address the long-term debt sustainability of these countries. However, the cost of the proposal would grow to between $7 billion and $12 billion for those 26 countries. An alternative debt proposal, proposed by the Bush administration, is to convert up to 50 percent of future multilateral concessional loans to grants. This proposal does not address the short-term debt …
Date: October 11, 2002
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
Best Estimate Radiation Flux Value-Added Procedure: Algorithm Operational Details and Explanations (open access)

Best Estimate Radiation Flux Value-Added Procedure: Algorithm Operational Details and Explanations

This document describes some specifics of the algorithm for best estimate evaluation of radiation fluxes at Southern Great Plains (SGP) Central Facility (CF). It uses the data available from the three co-located surface radiometer platforms at the SGP CF to automatically determine the best estimate of the irradiance measurements available. The Best Estimate Flux (BEFlux) value-added procedure (VAP) was previously named Best Estimate ShortWave (BESW) VAP, which included all of the broadband and spectral shortwave (SW) measurements for the SGP CF. In BESW, multiple measurements of the same quantities were handled simply by designating one as the primary measurement and using all others to merely fill in any gaps. Thus, this “BESW” is better termed “most continuous,” since no additional quality assessment was applied. We modified the algorithm in BESW to use the average of the closest two measurements as the best estimate when possible, if these measurements pass all quality assessment criteria. Furthermore, we included longwave (LW) fields in the best estimate evaluation to include all major components of the surface radiative energy budget, and renamed the VAP to Best Estimate Flux (BEFLUX1LONG).
Date: October 1, 2002
Creator: Shi, Y. & Long, C. N.
Object Type: Report
System: The UNT Digital Library
Better Understanding Public Perceptions of Risk: Possible Implications for Long-term Environmental Stewardship and Hazardous Waste Management (open access)

Better Understanding Public Perceptions of Risk: Possible Implications for Long-term Environmental Stewardship and Hazardous Waste Management

In the treatment, disposition, and long-term stewardship (e.g., storage) of hazardous waste forms, questions that are of particular concern are: • What is technically feasible and safe, • What is economically affordable, • What is legally mandated and allowable, and • What is publicly acceptable? Although DOE is exerting considerable effort in making sound science-based decisions that are economical and meet legal requirements, it may be lapse in not gaining a better understanding of how public perceptions are formed. This observation appears especially true in regards to the perceived long-term integrity and safety of various proposed hazardous waste storage options. The purpose of this research was to investigate how differences in how hazardous materials are configured and how those configurations are presented affect peoples’ perceptions of how safe they are. Specifically, we designed a preliminary experiment that assessed the public’s perception of risk for various storage configurations of hazardous materials. We included into the design factors to measure participants’ deliberative and spontaneous response to the perceived safety (or danger) posed by different hazardous materials storage configurations. The critical objectives of the proposed effort were to identify specific characteristics of hazardous materials storage configuration and to identify possible differences in deliberative …
Date: October 1, 2002
Creator: Joe, Jeffrey Clark & Harbour, Gerald Lee
Object Type: Report
System: The UNT Digital Library
Bioavailability of Fe(III) in natural soils and the impact on mobility of inorganic contaminants (open access)

Bioavailability of Fe(III) in natural soils and the impact on mobility of inorganic contaminants

Inorganic contaminants, such as heavy metals and radionuclides, can adhere to insoluble Fe(III) minerals resulting in decreased mobility of these contaminants through subsurface environments. Dissimilatory Fe(III)-reducing bacteria (DIRB), by reducing insoluble Fe(III) to soluble Fe(II), may enhance contaminant mobility. The Savannah River Site, South Carolina (SRS), has been subjected to both heavy metal and radionuclide contamination. The overall objective of this project is to investigate the release of inorganic contaminants such as heavy metals and radionuclides that are bound to solid phase soil Fe complexes and to elucidate the mechanisms for mobilization of these contaminants that can be associated with microbial Fe(III) reduction. This is being accomplished by (i) using uncontaminated and contaminated soils from SRS as prototype systems, (ii) evaluating the diversity of DIRBs within the samples and isolating cultures for further study, (iii) using batch microcosms to evaluate the bioavailability of Fe(III) from pure minerals and SRS soils, (iv) developing kinetic and mass transfer models that reflect the system dynamics, and (v) carrying out soil column studies to elucidate the dynamics and interactions amongst Fe(III) reduction, remineralization and contaminant mobility.
Date: October 3, 2002
Creator: Kosson, David S.; Cowan, Robert M.; Young, Lily Y.; Hacherl, Eric L. & Scala, David J.
Object Type: Report
System: The UNT Digital Library
BIOMASS GASIFICATION AND POWER GENERATION USING ADVANCED GAS TURBINE SYSTEMS (open access)

BIOMASS GASIFICATION AND POWER GENERATION USING ADVANCED GAS TURBINE SYSTEMS

A multidisciplined team led by the United Technologies Research Center (UTRC) and consisting of Pratt & Whitney Power Systems (PWPS), the University of North Dakota Energy & Environmental Research Center (EERC), KraftWork Systems, Inc. (kWS), and the Connecticut Resource Recovery Authority (CRRA) has evaluated a variety of gasified biomass fuels, integrated into advanced gas turbine-based power systems. The team has concluded that a biomass integrated gasification combined-cycle (BIGCC) plant with an overall integrated system efficiency of 45% (HHV) at emission levels of less than half of New Source Performance Standards (NSPS) is technically and economically feasible. The higher process efficiency in itself reduces consumption of premium fuels currently used for power generation including those from foreign sources. In addition, the advanced gasification process can be used to generate fuels and chemicals, such as low-cost hydrogen and syngas for chemical synthesis, as well as baseload power. The conceptual design of the plant consists of an air-blown circulating fluidized-bed Advanced Transport Gasifier and a PWPS FT8 TwinPac{trademark} aeroderivative gas turbine operated in combined cycle to produce {approx}80 MWe. This system uses advanced technology commercial products in combination with components in advanced development or demonstration stages, thereby maximizing the opportunity for early implementation. …
Date: October 20, 2002
Creator: Liscinsky, David
Object Type: Report
System: The UNT Digital Library
Blade Manufacturing Improvement Project: Final Report (open access)

Blade Manufacturing Improvement Project: Final Report

The Blade Manufacturing Improvement Project explores new, unique and improved materials integrated with innovative manufacturing techniques that promise substantial economic enhancements for the fabrication of wind turbine blades. The primary objectives promote the development of advanced wind turbine blade manufacturing in ways that lower blade costs, cut rotor weight, reduce turbine maintenance costs, improve overall turbine quality and increase ongoing production reliability. Foam Matrix (FMI) has developed a wind turbine blade with an engineered foam core, incorporating advanced composite materials and using Resin Transfer Molding (RTM) processes to form a monolithic blade structure incorporating a single molding tool. Patented techniques are employed to increase blade load bearing capability and insure the uniform quality of the manufactured blade. In production quantities, FMI manufacturing innovations may return a sizable per blade cost reduction when compared to the cost of producing comparable blades with conventional methods.
Date: October 1, 2002
Creator: SHERWOOD, KENT
Object Type: Report
System: The UNT Digital Library
BOILER MATERIALS FOR ULTRASUPERCRITICAL COAL POWER PLANTS (open access)

BOILER MATERIALS FOR ULTRASUPERCRITICAL COAL POWER PLANTS

The principal objective of this project is to develop materials technology for use in ultrasupercritical (USC) plant boilers capable of operating with 760 C (1400 F), 35 MPa (5000 psi) steam. In the 21st century, the world faces the critical challenge of providing abundant, cheap electricity to meet the needs of a growing global population while at the same time preserving environmental values. Most studies of this issue conclude that a robust portfolio of generation technologies and fuels should be developed to assure that the United States will have adequate electricity supplies in a variety of possible future scenarios. The use of coal for electricity generation poses a unique set of challenges. On the one hand, coal is plentiful and available at low cost in much of the world, notably in the U.S., China, and India. Countries with large coal reserves will want to develop them to foster economic growth and energy security. On the other hand, traditional methods of coal combustion emit pollutants and CO{sub 2} at high levels relative to other generation options. Maintaining coal as a generation option in the 21st century will require methods for addressing these environmental issues. This project has established a government/industry consortium …
Date: October 15, 2002
Creator: Viswanathan, R. & Coleman, K.
Object Type: Report
System: The UNT Digital Library
Bone Marrow Transplants: Despite Recruitment Successes, National Program May Be Underutilized (open access)

Bone Marrow Transplants: Despite Recruitment Successes, National Program May Be Underutilized

A letter report issued by the General Accounting Office with an abstract that begins "More than 30,000 people are diagnosed annually with leukemia or other blood, metabolic, or immune system disorders, many of whom may die without stem cell transplants, using stem cells from bone marrow or another source. When a patient needs a transplant of donated stem cells and no genetically compatible related donor is available, the National Bone Marrow Donor Registry may help the patient search for compatible stem cells from unrelated donors. The National Bone Marrow Registry Reauthorization Act of 1998 required, among other things, that the Registry carry out a donor recruitment program giving priority to minority and underrepresented donor populations, ensure efficiency of operations, and verify compliance with standards by organizations that participate in the Registry. From 1998, when the National Bone Marrow Registry Reauthorization Act was enacted, through 2001, the number of stem cell donors on the Registry increased for all racial and ethnic groups. Although the exact number of patients in need of transplants is not known, estimates suggest that about one-third of them use the Registry to search for donors. The organizations that are involved in transplantation and participate in the National …
Date: October 18, 2002
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
Booster subharmonic RF capture design. (open access)

Booster subharmonic RF capture design.

The studies presented here indicate that a subharmonic system optimized using both 3rd and 12th subharmonic cavities (117.3 and 29.3 MHz) provides the minimum total gap voltage required to capture and accelerate a 15-ns linac macropulse at up to 10 nC with {+-} 1% energy spread. The simulations also show particle losses less than a part in 110,000 when including radiation damping, quantum excitation, and rf cavity beam loading. The only particle losses were found to be at injection due to phase-space mismatch. Optimization of the subharmonic capture idea requires knowledge of the gap voltage that can be achieved with an actual cavity. In general the lower the cavity frequency the harder it is to engineer a cavity that can sustain a given gap voltage without breakdown. Phase and amplitude control of both subharmonic and 352-MHz systems also needs to be carefully considered so that bunch purity is preserved and operational flexibility maintained. Phase stability is particularly important for the high power 352-MHz system, which preliminary simulation studies show needs 1 degree regulation at turn-on. Future optimization studies need to include amplitude stability tolerance studies for each ramped rf system at turn on.
Date: October 7, 2002
Creator: Sereno, N. S.
Object Type: Report
System: The UNT Digital Library
Border Business Indicators, Volume 26, Number 10, October 2002 (open access)

Border Business Indicators, Volume 26, Number 10, October 2002

Monthly publication documenting statistics related to economic information in the Mexico-Texas border areas including types of border crossings, employment, customs revenues, and other related data.
Date: October 2002
Creator: Texas Center for Border Economic and Enterprise Development
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Bosnia: U.S. Military Operations (open access)

Bosnia: U.S. Military Operations

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: October 29, 2002
Creator: Bowman, Steven R.
Object Type: Report
System: The UNT Digital Library
Breaking Ground, October - December 2002 (open access)

Breaking Ground, October - December 2002

Newsletter of the Texas Department of Housing and Community Affairs discussing news and announcements related to the agency and other information regarding community resources and affordable housing in the state.
Date: October 2002
Creator: Texas. Department of Housing and Community Affairs.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Breakthrough in precision (0.3 percent) of neutron activation analyses applied to provenience studies of obsidian (open access)

Breakthrough in precision (0.3 percent) of neutron activation analyses applied to provenience studies of obsidian

A gamma ray spectrometer at LBNL (the Luis W. Alvarez Iridium Coincidence Spectrometer), that was specifically designed for high sensitivity measurements of iridium abundances, has been significantly modified in order to provide precisions of measurement in neutron activation analysis of obsidian significantly better than previously obtained (about 1%). Repeated measurements on a single sample of obsidian from a deposit near Chivay, Arequipa, Peru, showed a precision (average coefficient of variation) of 0.19% for the 6 best-measured elements, the value anticipated from the known random errors of measurement. In measurement of samples made from 7 different obsidian nodules from two locations near Chivay, a group of 5 had a spread of 0.30% for the 6 elements measured with counting statistics of better than 0.3% (and 1.8% for the remaining 6 elements). The data suggest there are source inhomogeneity and/or sample preparation contamination errors totaling 0.24 {+-} .05% for the 6 best measured elements. A sixth obsidian sample could be distinguished from the main group because it differed by +0.8% for most elements, and the last sample could be easily distinguished because several elements differed by more than 1%. The precision of measurements now being developed may provide a significantly more precise …
Date: October 1, 2002
Creator: Asaro, Frank; Stross, Fred H. & Burger, Richard L.
Object Type: Report
System: The UNT Digital Library
BROOKHAVEN NATIONAL LABORATORY WILDLIFE MANAGEMENT PLAN. (open access)

BROOKHAVEN NATIONAL LABORATORY WILDLIFE MANAGEMENT PLAN.

The purpose of the Wildlife Management Plan (WMP) is to promote stewardship of the natural resources found at the Brookhaven National Laboratory (BNL), and to integrate their protection with pursuit of the Laboratory's mission.
Date: October 22, 2002
Creator: NAIDU,J.R.
Object Type: Report
System: The UNT Digital Library
Budget Enforcement Procedures: Senate Pay-As-You-Go (PAYGO) Rule (open access)

Budget Enforcement Procedures: Senate Pay-As-You-Go (PAYGO) Rule

The Senate “pay-as-you-go,” or PAYGO, rule generally requires that any legislation increasing direct spending or reducing revenues be offset. A motion to waive the rule requires an affirmative vote of three-fifths of the membership (i.e., 60 Senators if no seats are vacant). Beginning in 1993, six points of order under the PAYGO rule have been raised against an entire bill or an amendment. Of these six points of order, four were sustained and two fell upon the adoption of a waiver motion.
Date: October 22, 2002
Creator: Heniff, Bill, Jr.
Object Type: Report
System: The UNT Digital Library
The Budget for Fiscal Year 2003 (open access)

The Budget for Fiscal Year 2003

This report discusses the budget for fiscal year 2003. It debates issues such as budget action, receipts surpluses or deficits, and the economy
Date: October 7, 2002
Creator: Winters, Philip D.
Object Type: Report
System: The UNT Digital Library
Building America Field Project: Results for the Consortium for Advanced Residential Buildings (CARB), January to October 2001 (open access)

Building America Field Project: Results for the Consortium for Advanced Residential Buildings (CARB), January to October 2001

This report describes the various projects by the Consortium for Advanced Residential Buildings (CARB) that were active during the first 10 months of 2001, summarizing results, benefits, lessons learned, and future plans. The second part of this report describes technical matters, summarizing innovative technologies, systems engineering and results, and industry team member contributions.
Date: October 1, 2002
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Building Security: Security Responsibilities for Federally Owned and Leased Facilities (open access)

Building Security: Security Responsibilities for Federally Owned and Leased Facilities

A letter report issued by the General Accounting Office with an abstract that begins "This report responds to a Congressional request for information regarding critical infrastructure protection within the federal government. In May 1998, Presidential Decision Directive 63 was issued with the intent to eliminate any significant vulnerability to both physical and cyber attacks on the nation's critical infrastructure. It makes every department and agency of the federal government responsible for protecting its own critical physical infrastructure. The Interagency Security Committee (ISC) and all 22 of the agencies GAO reviewed have some role in providing security for office space, although the degree of involvement varied from agency to agency. Other types of security responsibilities include performing security assessments, providing security funding, providing security forces and security technology, and coordination of security efforts among and within agencies. Eleven of the 22 agencies stated that they had completed security assessments on all their facilities since 1995. Nine agencies reported that they were still doing security assessments on their buildings. Two agencies are located in General Service Administration (GSA) space only and GSA is responsible for the security assessments. The agencies provide security using a combination of security forces and security technologies. Security …
Date: October 31, 2002
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
Burning Plasma Projections Using Drift Wave Transport Models and Scalings for the H-Mode Pedestal (open access)

Burning Plasma Projections Using Drift Wave Transport Models and Scalings for the H-Mode Pedestal

OAK-B135 The GLF23 and Multi-Mode (MM95) transport models are used along with a model for the H-mode pedestal to predict the fusion performance for the ITER, FIRE, and IGNITOR tokamak designs. The drift-wave predictive transport models reproduce the core profiles in a wide variety of tokamak discharges, yet they differ significantly in their response to temperature gradient (stiffness). Recent gyro-kinetic simulations of ITG/TEM and ETG modes motivate the renormalization of the GLF23 model. The normalizing coefficients for the ITG/TEM modes are reduced by a factor of 3.7 while the ETG mode coefficient is increased by a factor of 4.8 in comparison with the original model. A pedestal temperature model is developed for type I ELMy H-mode plasmas based on ballooning mode stability and a theory-motivated scaling for the pedestal width. In this pedestal model, the pedestal density is proportional to the line-averaged density and the pedestal temperature is inversely related to the pedestal density.
Date: October 1, 2002
Creator: Kinsey, J. E.; Onjun, T.; Bateman, G.; Kritz, A.; Pankin, A.; Staebler, G. M. et al.
Object Type: Article
System: The UNT Digital Library
Bursting Frequency Predictions for Compressible Turbulent Boundary Layers (open access)

Bursting Frequency Predictions for Compressible Turbulent Boundary Layers

A computational method for the prediction of the bursting frequency associated with the coherent streamwise structures in high-speed compressible turbulent boundary layers is presented. The structures are described as wavelike disturbances of the turbulent mean flow. A direct resonance theory is used to determine the frequency of bursting. The resulting hydrodynamic linear stability equations are discretized by using a Chebyshev collocation method. A global numerical method capable of resolving the entire eigenvalue spectrum is used. Realistic turbulent mean velocity and temperature profiles are applied. For all of the compressible turbulent boundary layers calculated, the results show at least one frequency that satisfies the resonance condition. A second frequency can be identified for cases with high Reynolds numbers. An estimate is also made for the profile distribution of the temperature disturbance.
Date: October 1, 2002
Creator: LIOU, WILLIAM W. & FANG, YICHUAN
Object Type: Report
System: The UNT Digital Library
Busted Butte: Achieving the Objectives and Numerical Modeling Results (open access)

Busted Butte: Achieving the Objectives and Numerical Modeling Results

The Unsaturated Zone Transport Test (UZTT) at Busted Butte is a mesoscale field/laboratory/modeling investigation designed to address uncertainties associated with flow and transport in the UZ site-process models for Yucca Mountain. The UZTT test facility is located approximately 8 km southeast of the potential Yucca Mountain repository area. The UZTT was designed in two phases, to address five specific objectives in the UZ: the effect of heterogeneities, flow and transport (F&T) behavior at permeability contrast boundaries, migration of colloids , transport models of sorbing tracers, and scaling issues in moving from laboratory scale to field scale. Phase 1A was designed to assess the influence of permeability contrast boundaries in the hydrologic Calico Hills. Visualization of fluorescein movement , mineback rock analyses, and comparison with numerical models demonstrated that F&T are capillary dominated with permeability contrast boundaries distorting the capillary flow. Phase 1B was designed to assess the influence of fractures on F&T and colloid movement. The injector in Phase 1B was located at a fracture, while the collector, 30 cm below, was placed at what was assumed to be the same fracture. Numerical simulations of nonreactive (Br) and reactive (Li) tracers show the experimental data are best explained by a …
Date: October 7, 2002
Creator: Soll, W. E.; Kearney, M.; Stauffer, P.; Tseng, P.; Turin, H. J. & Lu, Z.
Object Type: Report
System: The UNT Digital Library
Busted Butte Phase 2: Introduction and Analytical Modeling of Nonreactive Tracer and Lithium Breakthrough (open access)

Busted Butte Phase 2: Introduction and Analytical Modeling of Nonreactive Tracer and Lithium Breakthrough

The Busted Butte Unsaturated-Zone Transport Test Facility is located approximately 8 km southeast of Yucca Mountain, and was designed to address uncertainties associated with flow and transport in the UZ site-process models for Yucca Mountain. Busted Butte Phase 2 consisted of a 10m x 10m x 7m test block. From July 1988 through October 2000, complex tracer mixtures were injected continuously at 77 discrete points located along eight parallel 10-m boreholes arranged in two horizontal planes. In August 1999, iodide was added to the tracer mixture to explore the effects of initial hydraulic transients. During the course of the experiment, porewater samples were collected at regular intervals using sorbing-paper collection pads, emplaced into fifteen horizontal and inclined 10-m collection boreholes, oriented perpendicular to the injection boreholes. Potential travel distances ranged from 20 cm to over 500 cm. Nonreactive tracer and weakly sorbing lithium breakthrough was observed at most of the collection points during the injection period. Following termination of injection, approximately 800 rock samples were collected using overcore and mineback techniques, and analyzed for tracer concentration. Rock analyses are discussed in a subsequent paper. To complement complex 3-dimensional finite-element modeling of the entire block, bromide, iodide, and lithium breakthrough onto …
Date: October 7, 2002
Creator: Turin, H. J. & Soll, W. E.
Object Type: Report
System: The UNT Digital Library