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Design of the ILC Crab Cavity System

Description: The International Linear Collider (ILC) has a 14 mrad crossing angle in order to aid extraction of spent bunches. As a result of the bunch shape at the interaction point, this crossing angle at the collision causes a large luminosity loss which can be recovered by rotating the bunches prior to collision using a crab cavity. The ILC baseline crab cavity is a 9-cell superconducting dipole cavity operating at a frequency of 3.9 GHz. In this paper the design of the ILC crab cavity and its phase con… more
Date: August 15, 2007
Creator: Adolphsen, C.; Beard, C.; Bellantoni, L.; Burt, G.; Carter, R.; Chase, B. et al.
Partner: UNT Libraries Government Documents Department
open access

Improving Paper Machine Efficiency/Productivity through On-line Control

Description: This project involves implementing a new technology, microforming, in a headbox to produce an isotropic sheet with significant reductions in the MD/CD stiffness ratio (increasing CD specific STFI) and improved sheet uniformity. Microforming involves generating axial vorticity (i.e., swirl) prior to the converging nozzle of the headbox by retrofitting an existing tube block with swirl generation devices referred to as Vortigen system. The Vortigen system developed in this project is a retrofit t… more
Date: August 31, 2007
Creator: Aidun, Cyrus K
Partner: UNT Libraries Government Documents Department
open access

Environmentally Assisted Cracking in Light Water Reactors Annual Report January - December 2005.A

Description: This report summarizes work performed from January to December 2005 by Argonne National Laboratory on fatigue and environmentally assisted cracking in light water reactors (LWRs). Existing statistical models for estimating the fatigue life of carbon and low-alloy steels and austenitic stainless steels (SSs) as a function of material, loading, and environmental conditions were updated. Also, the ASME Code fatigue adjustment factors of 2 on stress and 20 on life were critically reviewed to assess… more
Date: August 31, 2007
Creator: Alexandreanu, B.; Chen, Y.; Chopra, O. K.; Chung, H. M.; Gruber, E. E.; Shack, W. J. et al.
Partner: UNT Libraries Government Documents Department
open access

Sensitivity and representativity analysis of past experiments with respect to ABTR system.

Description: A comprehensive validation analysis has been performed that incorporates representativity of multiple parameters, experiments, reference designs, and adjustment of the nuclear data. The work involves a new representativity study among selected reactor designs and several experiments. Application, using existing experiments, to reference design like the ABTR and the SFR has demonstrated that it is possible to achieve a significant reduction of uncertainty on the main integral parameters of inter… more
Date: August 29, 2007
Creator: Aliberti, G.; Palmiotti, G. & Salvatores, M.
Partner: UNT Libraries Government Documents Department
open access

Surface Treatment to Improve Corrosion Resistance in Lead-Alloy Coolants

Description: One of the six proposed advanced reactor designs of the Generation IV Initiative, the Leadcooled Fast Reactor (LFR) possesses many characteristics that make it a desirable candidate for future nuclear energy production and responsible actinide management. These characteristics include favorable heat transfer, fluid dynamics, and neutronic performance compared to other candidate coolants. However, the use of a heavy liquid metal coolant presents a challenge for reactor designers in regards to re… more
Date: August 29, 2007
Creator: Allen, Todd R.; Sridharan, Kumar; Machut, McLean T. & Tan, Lizhen
Partner: UNT Libraries Government Documents Department
open access

Asian Tracer Experiment and Atmospheric Modeling (TEAM) Project: Draft Field Work Plan for the Asian Long-Range Tracer Experiment

Description: This report provides an experimental plan for a proposed Asian long-range tracer study as part of the international Tracer Experiment and Atmospheric Modeling (TEAM) Project. The TEAM partners are China, Japan, South Korea and the United States. Optimal times of year to conduct the study, meteorological measurements needed, proposed tracer release locations, proposed tracer sampling locations and the proposed durations of tracer releases and subsequent sampling are given. Also given are the act… more
Date: August 1, 2007
Creator: Allwine, K Jerry & Flaherty, Julia E.
Partner: UNT Libraries Government Documents Department
open access

Smith River Rancheria's Development of an Energy Organization Investigation

Description: Smith River Rancheria (SRR), for some time, has had a strong commitment to attaining energy selfsufficiency, to reduce overall energy costs and concurrently initiate economic development within the community. Early on it was recognized that the development of an energy organization was important and for this reason was made part of the SRR's strategic review not only for economic development but also the reduction of energy costs. Towards this end, SRR retained Werner G. Buehler of W.G. Buehler… more
Date: August 27, 2007
Creator: Associates, W.G Buehler &
Partner: UNT Libraries Government Documents Department
open access

Selective Adsorption of Sodium Aluminum Fluoride Salts from Molten Aluminum

Description: Aluminum is produced in electrolytic reduction cells where alumina feedstock is dissolved in molten cryolite (sodium aluminum fluoride) along with aluminum and calcium fluorides. The dissolved alumina is then reduced by electrolysis and the molten aluminum separates to the bottom of the cell. The reduction cell is periodically tapped to remove the molten aluminum. During the tapping process, some of the molten electrolyte (commonly referred as “bath” in the aluminum industry) is carried over wi… more
Date: August 16, 2007
Creator: Aubrey, Leonard S.; Boyle, Christine A.; Williams, Eddie M.; DeYoung, David H.; Smith, Dawid D. & Chi, Feng
Partner: UNT Libraries Government Documents Department
open access

Updated laser safety&hazard analysis for the ARES laser system based on the 2007 ANSI Z136.1 standard.

Description: A laser safety and hazard analysis was performed for the temperature stabilized Big Sky Laser Technology (BSLT) laser central to the ARES system based on the 2007 version of the American National Standards Institute's (ANSI) Standard Z136.1, for Safe Use of Lasers and the 2005 version of the ANSI Standard Z136.6, for Safe Use of Lasers Outdoors. The ARES laser system is a Van/Truck based mobile platform, which is used to perform laser interaction experiments and tests at various national test s… more
Date: August 1, 2007
Creator: Augustoni, Arnold L.
Partner: UNT Libraries Government Documents Department
open access

Harsh-Environment Packaging for Downhole Gas and Oil Exploration

Description: This research into new packaging materials and methods for elevated temperatures and harsh environment electronics focused on gaining a basic understanding of current state-of-the-art in electronics packaging used in industry today, formulating the thermal-mechanical models of the material interactions and developing test structures to confirm these models. Discussions were initiated with the major General Electric (GE) businesses that currently sell into markets requiring high temperature elec… more
Date: August 31, 2007
Creator: Bansal, Shubhra; Cho, Junghyun; Durocher, Kevin; Kapusta, Chris; Knobloch, Aaron; Shaddock, David et al.
Partner: UNT Libraries Government Documents Department
open access

Lateral gene transfer in the subsurface

Description: Lateral gene transfer (LGT) is an important adaptive mechanism among prokaryotic organisms. This mechanism is particularly important for the response of microorganisms to changing environmental conditions because it facilitates the transfer of a large number of genes and their rapid expression. Together the transferred genes promote rapid genetic and metabolic changes that may enhance survival to newly established and sometimes hostile environmental conditions. The goal of our project was to ex… more
Date: August 27, 2007
Creator: Barkay, Tamar & Sobecky, Patricia
Partner: UNT Libraries Government Documents Department
open access

Experimental Component Characterization, Monte-Carlo-Based Image Generation and Source Reconstruction for the Neutron Imaging System of the National Ignition Facility

Description: The Neutron Imaging System (NIS) is one of seven ignition target diagnostics under development for the National Ignition Facility. The NIS is required to record hot-spot (13-15 MeV) and downscattered (6-10 MeV) images with a resolution of 10 microns and a signal-to-noise ratio (SNR) of 10 at the 20% contour. The NIS is a valuable diagnostic since the downscattered neutrons reveal the spatial distribution of the cold fuel during an ignition attempt, providing important information in the case of… more
Date: August 21, 2007
Creator: Barrera, C. A. & Moran, M. J.
Partner: UNT Libraries Government Documents Department
open access

S. 1893/H.R. 976: The Children’s Health Insurance Program Reauthorization Act of 2007

Description: This report tracks the Children's Health Reauthorization of Act of 2007 in both the Senate and the House, while also providing a summary of the bill. The report lists each title of the bill. what they do, and their implications. The report also examines costs by analyzing the immediate outlay and future outlay, starting at 28.6 billion and potentially increasing to 35.2 billion over time.
Date: August 14, 2007
Creator: Baumrucker, Evelyne; Fernandez, Bernadette; Grady, April; Herz, Elicia; Peterson, Chris & Rimkunas, Richard
Partner: UNT Libraries Government Documents Department
open access

Implementation of Energy-Dependent Q Values for Fission

Description: We discuss how the fission Q values for {sup 235}U, {sup 238}U and {sup 239}Pu depend on the energy of the incident neutron. We then describe how these values have been implemented in mcfgen etc. This paper describes the calculation of energy-dependent fission Q values by Madland [1] and explains how it has been implemented in the ENDL database for use in the LLNL codes.
Date: August 8, 2007
Creator: Beck, B.; Brown, D. A.; Daffin, F.; Hedstrom, J. & Vogt, R.
Partner: UNT Libraries Government Documents Department
open access

Final Project Report: DOE Award FG02‐04ER25606 Overlay Transit Networking for Scalable, High Performance Data Communication across Heterogeneous Infrastructure

Description: As the flood of data associated with leading edge computational science continues to escalate, the challenge of supporting the distributed collaborations that are now characteristic of it becomes increasingly daunting. The chief obstacles to progress on this front lie less in the synchronous elements of collaboration, which have been reasonably well addressed by new global high performance networks, than in the asynchronous elements, where appropriate shared storage infrastructure seems to be l… more
Date: August 31, 2007
Creator: Beck, Micah & Moore, Terry
Partner: UNT Libraries Government Documents Department
open access

Horse Slaughter Prevention Bills and Issues

Description: This report provides an overview of the bills and issues regarding horse slaughter prevention.
Date: August 9, 2007
Creator: Becker, Geoffrey S.
Partner: UNT Libraries Government Documents Department
open access

Intelligent Control via Wireless Sensor Networks for Advanced Coal Combustion Systems

Description: Numerical Modeling of Solid Gas Flow, System Identification for purposes of modeling and control, and Wireless Sensor and Actor Network design were pursued as part of this project. Time series input-output data was obtained from NETL's Morgantown CFB facility courtesy of Dr. Lawrence Shadle. It was run through a nonlinear kernel estimator and nonparametric models were obtained for the system. Linear and first-order nonlinear kernels were then utilized to obtain a state-space description of the … more
Date: August 5, 2007
Creator: Behal, Aman; Kumar, Sunil & Ahmadi, Goodarz
Partner: UNT Libraries Government Documents Department
open access

Gasoline Prices: Legislation in the 110th Congress

Description: This report provides information related to the high prices of Gasoline and discusses Legislation in the 110th Congress.
Date: August 16, 2007
Creator: Behrens, Carl E. & Glover, Carol
Partner: UNT Libraries Government Documents Department
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