An Alternative Scheme for the Neutrino Factory With a High Power Proton Driver. (open access)

An Alternative Scheme for the Neutrino Factory With a High Power Proton Driver.

We describe a scheme to produce an intense and collimated beam of neutrinos for the neutrino-oscillation experiment. The scheme feature is the presence of a Proton Driver that generates a proton beam at very large power (10mA x 15GeV), considerably higher than that proposed elsewhere for this application. With this scheme, because of the high intensity of the proton beam, to produce neutrinos at the same required rates, it is sufficient to collect {pi} and {mu} mesons only around a small angle and at reduced momentum spreads. This eliminates the need for the difficult longitudinal manipulations of the protons and mesons, and of the ionization cooling that still needs to be demonstrated. It is also shown, at the end of the paper, that the Neutrino Factory here proposed can also be used as an injector for a 1 x 1 TeV{sup 2} {mu}{sup +} - {mu}{sup -} collider at large luminosity.
Date: June 30, 2001
Creator: Ruggiero, A. G.
Object Type: Article
System: The UNT Digital Library
Al Alternative Scheme for the Neutrino Factory With a High Power Proton Driver. (open access)

Al Alternative Scheme for the Neutrino Factory With a High Power Proton Driver.

We describe a scheme to produce an intense and collimated beam of neutrinos for the neutrino-oscillation experiment. The scheme feature is the presence of a Proton Driver that generates a proton beam at very large power (10mA x 15GeV), considerably higher than that proposed elsewhere for this application. With this scheme, because of the high intensity of the proton beam, to produce neutrinos at the same required rates, it is sufficient to collect {pi} and {mu} mesons only around a small angle and at reduced momentum spreads. This eliminates the need for the difficult longitudinal manipulations of the protons and mesons, and of the ionization cooling that still needs to be demonstrated. It is also shown, at the end of the paper, that the Neutrino Factory here proposed can also be used as an injector for a 1 x 1 TeV{sup 2} {mu}{sup +}-{mu}{sup -} collider at large luminosity.
Date: June 30, 2001
Creator: Ruggiero, A. G.
Object Type: Article
System: The UNT Digital Library
Amendments Relating to the Discipline of Children with Disabilities in H.R. 1 and S.1, 107th Congress (open access)

Amendments Relating to the Discipline of Children with Disabilities in H.R. 1 and S.1, 107th Congress

This report discusses the Better Education for Students and Teachers Act, which would eliminate the requirement for educational services to children with disabilities in certain situations.
Date: June 22, 2001
Creator: Jones, Nancy Lee
Object Type: Report
System: The UNT Digital Library
American Electric Power's Conesville Power Plant Unit No. 5 CO2 Capture Retrofit Study (open access)

American Electric Power's Conesville Power Plant Unit No. 5 CO2 Capture Retrofit Study

ALSTOM Power Inc.'s Power Plant Laboratories (ALSTOM) has teamed with American Electric Power (AEP), ABB Lummus Global Inc. (ABB), the US Department of Energy National Energy Technology Laboratory (DOE NETL), and the Ohio Coal Development Office (OCDO) to conduct a comprehensive study evaluating the technical feasibility and economics of alternate CO{sub 2} capture and sequestration technologies applied to an existing US coal-fired electric generation power plant. The motivation for this study was to provide input to potential US electric utility actions concerning GHG emissions reduction. If the US decides to reduce CO{sub 2} emissions, action would need to be taken to address existing power plants. Although fuel switching from coal to natural gas may be one scenario, it will not necessarily be a sufficient measure and some form of CO{sub 2} capture for use or disposal may also be required. The output of this CO{sub 2} capture study will enhance the public's understanding of control options and influence decisions and actions by government, regulators, and power plant owners in considering the costs of reducing greenhouse gas CO{sub 2} emissions. The total work breakdown structure is encompassed within three major reports, namely: (1) Literature Survey, (2) AEP's Conesville Unit No.5 Retrofit …
Date: June 30, 2001
Creator: Bozzuto, Carl R.; Nsakala, Nsakala ya; Liljedahl, Gregory N.; Palkes, Mark & Marion, John L.
Object Type: Report
System: The UNT Digital Library
The Americans with Disabilities Act (ADA): Statutory Language and Recent Issues (open access)

The Americans with Disabilities Act (ADA): Statutory Language and Recent Issues

This report addresses Statutory Language and Recent Issues of the Americans with Disabilities Act (ADA).
Date: June 12, 2001
Creator: Jones, Nancy Lee
Object Type: Report
System: The UNT Digital Library
ANALOG FRONT-END ELECTRONICS FOR BEAM POSITION MEASUREMENT ON THE BEAM HALO MEASUREMENT (open access)

ANALOG FRONT-END ELECTRONICS FOR BEAM POSITION MEASUREMENT ON THE BEAM HALO MEASUREMENT

Enhancements have been made to the log-ratio analog front-end electronics based on the Analog Devices 8307 logarithmic amplifier as used on the LEDA accelerator. The dynamic range of greater than 85 dB, has been extended to nearly the full capability of the AD8307 from the previous design of approximately 65 dB through the addition of a 350 MHz band-pass filter, careful use of ground and power plane placement, signal routing, and power supply bypassing. Additionally, selection of high-isolation RF switches (55dB) has been an integral part of a new calibration technique, which is fully described in another paper submitted to this conference. Provision has also been made for insertion of a first-stage low-noise amplifier for using the circuit under low-signal conditions.
Date: June 1, 2001
Creator: SHURTER, R.B.; COTE, T.J. & GILPATRICK, J.D.
Object Type: Article
System: The UNT Digital Library
Analysis of a High-Efficiency Natural Gas-Assisted Steam Electrolyzer for Hydrogen Production (open access)

Analysis of a High-Efficiency Natural Gas-Assisted Steam Electrolyzer for Hydrogen Production

This paper presents a description and analysis of a high-efficiency hydrogen production system. The main component of the system is a novel steam electrolyzer. In conventional electrolyzers, oxygen produced from electrolysis is usually released into the environment. In this design, natural gas is used to react with the oxygen produced in the electrolysis, reducing reduce the chemical potential difference across the electrolyzer, thus minimizing electricity consumption. The oxygen produced from the electrolysis is consumed in either a total oxidation or a partial oxidation reaction with natural gas. Experiments performed on single cells shown a voltage reduction as much as 1 V when compared to conventional electrolyzers. A heat recovery system (heat exchangers and catalytic converter) has been incorporated to the electrolyzer to obtain a high efficiency hydrogen production system. Results from a thermodynamic analysis show up to 70% efficiency with respect to primary energy source.
Date: June 26, 2001
Creator: Martinez-Frias, J.; Pham, A. Q. & Aceves, S. M.
Object Type: Article
System: The UNT Digital Library
Analysis of Combustion Chamber Deposits by ESI-TOF-MS and MALDI-TOF-MS (open access)

Analysis of Combustion Chamber Deposits by ESI-TOF-MS and MALDI-TOF-MS

Combustion chamber deposits (CCDs) in internal combustion engines have been studied by various techniques to understand the relationship of performance degradation with deposit quantity and structure. XPS, XAS, NMR, and elemental analysis have offered insight into the bulk structure of C, H, N, O and metal components [1]. MS has offered some information about compound structure, but results are limited due to the insolubility and complexity of the materials. Recent advances in MS have opened new possibilities for analysis of CCDs. Here we report initial findings on the carbon structure of these deposits determined by ESI-TOF-MS and MADLI-TOF-MS.
Date: June 14, 2001
Creator: Reynolds, J G; Shields, S J & Roos, J W
Object Type: Article
System: The UNT Digital Library
Analysis of Combustion Chamber Deposits by ESI-TOF-MS and MALDI-TOF-MS (open access)

Analysis of Combustion Chamber Deposits by ESI-TOF-MS and MALDI-TOF-MS

Combustion chamber deposits (CCD) in internal combustion engines have been studied by various techniques to understand the relationship of performance degradation with deposit quantity and structure. XPS, XAS, NMR, and elemental analysis have offered insight into the bulk structure of C, H, N, O and metal components. MS has offered some information about compound structure, but results are limited due to the insolubility and complexity of the materials. Recently, we have reported on the metal structure by XPS and XAS of several deposits from a GM 3800 engine generated using a standard fuel and one that contains low levels of the gasoline anti-knock additive, MMT. Here we report the initial findings on the carbon structure of these deposits determined by ESI-TOF-MS and MADLI-TOF-MS.
Date: June 14, 2001
Creator: Reynolds, J G; Shields, S J & Roos, J W
Object Type: Article
System: The UNT Digital Library
Analysis of coupling impedance bench measurements using Bethe's diffraction theory (open access)

Analysis of coupling impedance bench measurements using Bethe's diffraction theory

In this paper we study the validity of coupling impedance bench measurements, comparing two of the most commonly used formulas to the result obtained, applying a modified version of Bethe's theory of diffraction to a lumped impedance in a coaxial beam pipe. The equations found provide a quantitative expression for the influence of the wire thickness used in the measurement of the real and imaginary part of the longitudinal impedance. The precision achievable in an actual measurement is therefore discussed. The method presented can also be applied in the presence of distributed impedances as well as to the analysis of transverse impedance measurements.
Date: June 1, 2001
Creator: De Santis, Stefano
Object Type: Article
System: The UNT Digital Library
Analysis of low energy AGS polarimeter data and potential consequences for RHIC spin physics. (open access)

Analysis of low energy AGS polarimeter data and potential consequences for RHIC spin physics.

The small asymmetries measured at G{sub {gamma}} = 7.5 during the RHIC spin commissioning were a serious concern. In earlier runs, asymmetries double those from the spin commissioning time (September 2000) had sometimes been observed, and there had been few changes to the AGS polarimeter hardware or operating conditions. Recently, the observed changes in the asymmetries measured at G{sub {gamma}} = 7:5 have been ascribed to contamination of the carbon target asymmetry with that from the fishline target and vice-versa, because of the sizeable beam spot size compared to the separation of the targets. This note addresses this hypothesis using the observed asymmetries. This problem could directly impact spin physics at RHIC.
Date: June 22, 2001
Creator: Cadman, R.; Krueger, K.; Spinka, H.; Underwood, D.; Yokosawa, A. & Huang, H.
Object Type: Report
System: The UNT Digital Library
Analysis of Plasma Dust Particle Crystals Confined within a Potential Well (open access)

Analysis of Plasma Dust Particle Crystals Confined within a Potential Well

None
Date: June 1, 2001
Creator: RILEY,MERLE E. & HEBNER,GREGORY A.
Object Type: Report
System: The UNT Digital Library
Analysis of Yucca Mountain Pore-Water Chloride Data (open access)

Analysis of Yucca Mountain Pore-Water Chloride Data

Distribution of chemical constituents in the unsaturated zone (UZ) system of Yucca Mountain, Nevada, depends on many factors, such as hydrological and geochemical processes of surface precipitation, evapotranspiration, the water-fracture-matrix interactions, large-scale mixing via lateral flow and transport, and the history of climate changes. This study analyzes pore-water chloride-concentration data and models the transport processes. The model results are then used to calibrate the UZ flow model with the aim of refining the infiltration distribution and percolation fluxes to the potential repository. The major chemical data used in this study were pore-water chloride (Cl) concentrations. The sensitivity of this conservative tracer to the UZ flow system is well known. This constituent was directly incorporated into a three-dimensional dual-permeability flow model. Chemical transport properties were taken into account. The surface flux of chloride was determined by the total amount of precipitation reaching the surface and chemical concentration in the precipitation. The entire flow system was divided into domains based on the distribution of pore-water chemical data, infiltration data, hydrogeological and hydrostructural features. Model calibration proceeded by adjusting the site-scale infiltration map and anisotropy permeabilities to reach a satisfying agreement between the simulated subsurface chloride distribution and measured data.
Date: June 1, 2001
Creator: Liu, Jianchun; Sonnenthal, Eric & Bodvarrson, Bo
Object Type: Report
System: The UNT Digital Library
ANALYTIC PROPERTIES OF THE LONGITUDINAL BEAM TRANSFER FUNCTION. (open access)

ANALYTIC PROPERTIES OF THE LONGITUDINAL BEAM TRANSFER FUNCTION.

The frequency dependence of the longitudinal beam transfer function (BTF) in a storage ring, when expressed in a basis of azimuthal harmonics of the line density, is the Fourier transform of a causal function that depends on the radio-frequency potential well in which the bunch moves. The effect of all synchrotron harmonics are included in this function, which is derived from Krinsky and Wang's expression for the BTF expressed in the same basis (S. Krinsky and J.-M. Wang, Part. Accel. 17, 109-139 (1985)). Analytic properties of the terms of the BTF expressed in a series of synchrotron harmonics, which are approximately Shaposhnikova's BTF matrix elements (E. Shaposhnikova, CERN Report No. SL-94-19-RF (1994)), are studied through the large-argument asymptotics of corresponding causal functions.
Date: June 18, 2001
Creator: TOWNE, N.
Object Type: Article
System: The UNT Digital Library
Analytical laboratory quality audits (open access)

Analytical laboratory quality audits

Analytical Laboratory Quality Audits are designed to improve laboratory performance. The success of the audit, as for many activities, is based on adequate preparation, precise performance, well documented and insightful reporting, and productive follow-up. Adequate preparation starts with definition of the purpose, scope, and authority for the audit and the primary standards against which the laboratory quality program will be tested. The scope and technical processes involved lead to determining the needed audit team resources. Contact is made with the auditee and a formal audit plan is developed, approved and sent to the auditee laboratory management. Review of the auditee's quality manual, key procedures and historical information during preparation leads to better checklist development and more efficient and effective use of the limited time for data gathering during the audit itself. The audit begins with the opening meeting that sets the stage for the interactions between the audit team and the laboratory staff. Arrangements are worked out for the necessary interviews and examination of processes and records. The information developed during the audit is recorded on the checklists. Laboratory management is kept informed of issues during the audit so there are no surprises at the closing meeting. The audit report …
Date: June 11, 2001
Creator: Kelley, William D.
Object Type: Article
System: The UNT Digital Library
Analytical laboratory quality control charting (open access)

Analytical laboratory quality control charting

In life the importance of setting goals is stressed. The desired end result must be envisioned to chart a path and determine indicators to provide feedback on the process. Quality does not happen by accident but is achieved through a constant process of setting goals, process development, monitoring process indicators, fine tuning the process, and achieving results. These goals are to be focused and clearly measurable. In industry and life the setting of goals with clear process indicators is often difficult because of the variable end result and scarcity of measurements. Laboratories are fortunate in that they have a plethora of measurements with known or desired end results (controls) to monitor the process and give instantaneous feedback on quality. A key quality tool used by the laboratory to monitor and evaluate the lab processes is control charting. When properly utilized Quality Control (QC) Charts allow labs to be proactive in addressing problems rather than reactive. Several methods are available for control charting and some are listed in the references/information sources. The content for this paper is based on the control-charting program utilized at the Department of Energy's Fernald site. This control-charting program has specific areas of emphasis, simple charts, trend …
Date: June 11, 2001
Creator: O'Bryan, Ervin F.
Object Type: Article
System: The UNT Digital Library
Analytical Solution for Subsurface Gas Flow to a Well Induced by Surface Pressure Fluctuations (open access)

Analytical Solution for Subsurface Gas Flow to a Well Induced by Surface Pressure Fluctuations

A simple analytical model is presented for predicting subsurface gas flow to a vadose zone well in response to atmospheric pressure fluctuations (barometric pumping). The effective radial permeability (kr) in the vicinity of the well is determined during model calibration using less than two weeks of data. By combining the flow solution with a solution for the vertical gas pressure, only atmospheric pressure data are required to predict the induced flow through a well. The ability to quantitatively predict naturally induced flow in vadose zone wells by simple and inexpensive measurements is invaluable for systems using barometric pumping for remediation.
Date: June 20, 2001
Creator: Rossabi, J.
Object Type: Article
System: The UNT Digital Library
Annual Birding & Nature Festivals of Texas: 2001-2002 (open access)

Annual Birding & Nature Festivals of Texas: 2001-2002

Annual guide listing festivals in the state of Texas that are related to birds or other wildlife, providing descriptions, dates, and contact information.
Date: June 2001
Creator: Texas. Parks and Wildlife Department.
Object Type: Pamphlet
System: The Portal to Texas History
Annual report of waste generation and pollution prevention progress 2000 [USDOE] [9th edition] (open access)

Annual report of waste generation and pollution prevention progress 2000 [USDOE] [9th edition]

This ninth edition of the Annual Report of Waste Generation and Pollution Prevention Progress highlights waste reduction, pollution prevention accomplishments, and cost savings/avoidance for the U.S. Department of Energy (DOE) Pollution Prevention Program for Fiscal Year 2000. This edition marks the first time that progress toward meeting the 2005 Pollution Prevention Goals, issued by the Secretary of Energy in November 1999, is being reported. In addition, the Annual Report has a new format, and now contains information on a fiscal year basis, which is consistent with other DOE reports.
Date: June 1, 2001
Creator: unknown
Object Type: Report
System: The UNT Digital Library
ANOMALOUS EFFECTS OF ALLOYING WITH NIOBIUM ON YIELD STRENGTH OF MOLYBDENUM DISILICIDE (open access)

ANOMALOUS EFFECTS OF ALLOYING WITH NIOBIUM ON YIELD STRENGTH OF MOLYBDENUM DISILICIDE

None
Date: June 1, 2001
Creator: SHARIF, A.; MISRA, A. & AL, ET
Object Type: Article
System: The UNT Digital Library
Anti-Drug Media Campaign: Aspects of Advertising Contract Mismanaged by the Government; Contractor Improperly Charged Some Costs (open access)

Anti-Drug Media Campaign: Aspects of Advertising Contract Mismanaged by the Government; Contractor Improperly Charged Some Costs

A letter report issued by the General Accounting Office with an abstract that begins "This report discusses the Office of National Drug Control Policy's (ONDCP) advertising contract for Phase III of the National Youth Anti-Drug Media Campaign. The contractor for the advertising portion of the Phase III anti-drug media campaign did not properly charge the government for some of the labor costs incurred under the contract. Ogilvy & Mather's submission of time sheets claiming hours that some employees said they did not work on the anti-drug media campaign was clearly improper. Moreover, Ogilvy should not have been awarded a cost accounting standards (CAS)-covered cost-reimbursement government contract until the company had an adequate cost accounting system to support this type of contract. The government poorly managed aspects of the award and administration of the contract. The Department of Health and Human Services (HHS) should not have awarded this cost-reimbursement contract without determining whether the contractor had an adequate cost accounting system that met CAS standards. In addition, HHS should have reviewed the appropriateness of the large amount of money that the contracting officer's technical representative (COTR) recommended be disallowed from the contractor's invoices or arranged for an audit of the contract. …
Date: June 25, 2001
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
An apolipoprotein influencing triglycerides in humans and mice revealed by comparative sequencing (open access)

An apolipoprotein influencing triglycerides in humans and mice revealed by comparative sequencing

None
Date: June 1, 2001
Creator: Pennacchio, Len A.; Olivier, Michael; Hubacek, Jaroslav A.; Cohen, Jonathan C.; Cox, David R.; Fruchart, Jean-Charles et al.
Object Type: Article
System: The UNT Digital Library
THE APPLICATION OF FIXED AND RANDOM ERROR TO SHIPPER/RECEIVER DIFFERENCES (open access)

THE APPLICATION OF FIXED AND RANDOM ERROR TO SHIPPER/RECEIVER DIFFERENCES

In order to determine if a statistically significant difference exists between shipper and receiver measurements, a statistical combination of the shipper's and receiver's limit-of-error (LOE) is calculated to determine the shipper/receiver limit-of-error, LOES/R. The shipper's and receiver's LOE may possess random and systematic components. Depending on the interpretation of the systematic and random components, the determination of the LOES/R can be performed by several different calculational methods. These calculational methods and their associated underlying assumptions are reviewed in the context of the LANL shipper receiver program. This paper, by presenting the assumptions that form the basis of a site-specific shipper/receiver difference calculation, can assist those individuals responsible for calculating LOES/R.
Date: June 1, 2001
Creator: SCOTT, B. G.
Object Type: Article
System: The UNT Digital Library
AN APPLICATION OF GAME THEORY: FUNDING INTERDEPENDENT MC and A UPGRADE DECISIONS (open access)

AN APPLICATION OF GAME THEORY: FUNDING INTERDEPENDENT MC and A UPGRADE DECISIONS

Funding Material, Control and Accountability (MC&A) system upgrades has been identified as a partial solution for mitigating the diversion threat of weapons-grade nuclear material. Effective MC&A system upgrades are dependent on appropriate decisions based on based on funding, implementation, operation and oversight. Traditional MC&A upgrade decisions inherently assumed that all decision-makers possessed similar payoff vectors allowing for a fairly consistent and unified approach to MC&A system enhancements; however, MC&A upgrade projects in non-traditional environments may be required to take into account situations where the potential payoff vectors among decision-makers may be significantly different. Once a decision-maker is required to take into account the decisions of others, the process can be modeled as a game. Game theory has been previously be used to shed light on many aspects of social and economic behavior where a payoff from a set of strategies is dependent on the strategy of others. In this paper, the application of game theory in the context of MC&A upgrades is discussed. Various MC&A upgrades decision payoff matrices for relevant circumstances are evaluated for static (simultaneous) and dynamic (sequential decisions) games. Optimal strategies and equilibrium conditions for these payoff matrices are analyzed. Additional game factors (bargaining, uncertain outcomes, moral …
Date: June 1, 2001
Creator: SCOTT, B. G.
Object Type: Article
System: The UNT Digital Library