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Simulation of Scraping on the AGS Beam Dump
N/A
Date:
October 28, 2013
Creator:
Gardner, C. J.
Object Type:
Report
System:
The UNT Digital Library
Injection of large transverse emittance EBIS beams in booster
During the commissioning of EBIS beams in Booster in November 2010 and in April, May and June 2011, it was found that the transverse emittances of the EBIS beams just upstream of Booster were much larger than expected. Beam emittances of 11{pi} mm milliradians had been expected, but numbers 3 to 4 times larger were measured. Here and throughout this note the beam emittance, {pi}{epsilon}{sub 0}, is taken to be the area of the smallest ellipse that contains 95% of the beam. We call this smallest ellipse the beam ellipse. If the beam distribution is gaussian, the rms emittance of the distribution is very nearly one sixth the area of the beam ellipse. The normalized rms emittance is the rms emittance times the relativistic factor {beta}{gamma} = 0.06564. This amounts to 0.12{pi} mm milliradians for the 11{pi} mm milliradian beam ellipse. In [1] we modeled the injection and turn-by-turn evolution of an 11{pi} mm milliradian beam ellipse in the horizontal plane in Booster. It was shown that with the present injection system, up to 4 turns of this beam could be injected and stored in Booster without loss. In the present note we extend this analysis to the injection of …
Date:
October 10, 2011
Creator:
Gardner, C.
Object Type:
Report
System:
The UNT Digital Library
Proton beam lifetime increase with 10- and 12-pole correctors in the Relativistic Heavy Ion Collider
N/A
Date:
October 31, 2012
Creator:
Fischer, W.; Beebe-Wang, J.; Gu, X.; Luo, Y. & Nemesure, S.
Object Type:
Report
System:
The UNT Digital Library
Gainesville Daily Register (Gainesville, Tex.), Vol. 128, No. 33, Ed. 1 Saturday, October 14, 2017
Daily newspaper from Gainesville, Texas that includes local, state, and national news along with advertising.
Date:
October 14, 2017
Creator:
Armstrong, Mark J.
Object Type:
Newspaper
System:
The Portal to Texas History
Presidential Nominating Process: Current Issues
This report discusses issues regarding the Presidential Nomination Process including information about the 2008 election, calendar changes from 1988 to 2008, changes to national party rules for 2012, an evaluation of the primary system, reform proposals, and legislative considerations.
Date:
October 13, 2011
Creator:
Coleman, Kevin J.
Object Type:
Report
System:
The UNT Digital Library
The RHIC and RHIC Pre-Injectors Controls Systems: Status and Plans
For the past twelve years experiments at the Relativistic Heavy Ion Collider (RHIC) have recorded data from collisions of heavy ions and polarized protons, leading to important discoveries in nuclear physics and the spin dynamics of quarks and gluons. BNL is the site of one of the first and still operating alternating gradient synchrotrons, the AGS, which first operated in 1960. The accelerator controls systems for these instruments span multiple generations of technologies. In this report we will describe the current status of the Collider-Accelerator Department controls systems, which are used to control seven different accelerator facilities and multiple science programs (high energy nuclear physics, high energy polarized proton physics, NASA programs, isotope production, and multiple accelerator research and development projects). We will describe the status of current projects, such as the just completed Electron Beam Ion Source (EBIS), our R&D programs in superconducting RF and an Energy Recovery LINAC (ERL), innovations in feedback systems and bunched beam stochastic cooling at RHIC, and plans for future controls system developments.
Date:
October 10, 2011
Creator:
Brown, K. A.; Altinbas, Z.; Aronson, J.; Binello, S.; Campbell, I.; Costanzo, M. et al.
Object Type:
Article
System:
The UNT Digital Library
Investigation of Some Transparent Metal Oxides as Damp Heat Protective Coating for CIGS Solar Cells: Preprint
We investigated the protective effectiveness of some transparent metal oxides (TMO) on CIGS solar cell coupons against damp heat (DH) exposure at 85oC and 85% relative humidity (RH). Sputter-deposited bilayer ZnO (BZO) with up to 0.5-um Al-doped ZnO (AZO) layer and 0.2-um bilayer InZnO were used as 'inherent' part of device structure on CdS/CIGS/Mo/SLG. Sputter-deposited 0.2-um ZnSnO and atomic layer deposited (ALD) 0.1-um Al2O3 were used as overcoat on typical BZO/CdS/CIGS/Mo/SLG solar cells. The results were all negative -- all TMO-coated CIGS cells exhibited substantial degradation in DH. Combining the optical photographs, PL and EL imaging, SEM surface micro-morphology, coupled with XRD, I-V and QE measurements, the causes of the device degradations are attributed to hydrolytic corrosion, flaking, micro-cracking, and delamination induced by the DH moisture. Mechanical stress and decrease in crystallinity (grain size effect) could be additional degrading factors for thicker AZO grown on CdS/CIGS.
Date:
October 1, 2012
Creator:
Pern, F. J.; Yan, F.; Zaaunbrecher, B.; To, B.; Perkins, J. & Noufi, R.
Object Type:
Article
System:
The UNT Digital Library
Process Design and Economics for the Conversion of Lignocellulosic Biomass to Hydrocarbons: Dilute-Acid and Enzymatic Deconstruction of Biomass to Sugars and Biological Conversion of Sugars to Hydrocarbons
This report describes one potential conversion process to hydrocarbon products by way of biological conversion of lingnocellulosic-dervied sugars. The process design converts biomass to a hydrocarbon intermediate, a free fatty acid, using dilute-acid pretreatement, enzymatic saccharification, and bioconversion. Ancillary areas--feed handling, hydrolysate conditioning, product recovery and upgrading (hydrotreating) to a final blendstock material, wastewater treatment, lignin combusion, and utilities--are also included in the design.
Date:
October 1, 2013
Creator:
Davis, R.; Tao, L.; Tan, E. C. D.; Biddy, M. J.; Beckham, G. T.; Scarlata, C. et al.
Object Type:
Report
System:
The UNT Digital Library
The Evolution of the CareerAdvance Program in Tulsa, Oklahoma
This is the third report focusing on the implementation of CareerAdvance, a program for training parents of Head Start and Early Head Start children in order provide low-income individuals with opportunities to seek work in the healthcare industry.
Date:
October 2012
Creator:
Smith, Tara C.; Douglas, Rachel V. & Glover, Robert W.
Object Type:
Report
System:
The Portal to Texas History
[Program: 69th San Antonio Branch National Association for the Advancement of Colored People Freedom Fund Dinner]
Program for the 69th San Antonio Branch NAACP Freedom Fund Dinner on October 12, 2008. The honorees were Harold McBride Tarver, Oliver W. Hill, Sr., Thomas C. Rockeymoore, Dr. Howard Anderson, Marvinette M. Smith, Tommy Calvert, and Mayor Ivy Ruth Taylor, and Dr. Maya Rockeymoore Cummings was the speaker.
Date:
October 12, 2018
Creator:
Hill, Oliver W.; Sherfield, Mentoria Lewis & Greene, Maria Stevenson
Object Type:
Pamphlet
System:
The Portal to Texas History
Knowledge Management Practices of the Dallas-Fort Worth Schizophrenia Study Team
Presentation paper for the 2017 International Conference on Knowledge Management. This paper examines the knowledge management practices of the Dallas-Fort Worth (DFW) Schizophrenia Study Team, a group of interdisciplinary informatics researchers comprised of faculty, staff, and students from eight academic units at Texas Woman’s University.
Date:
October 25, 2017
Creator:
Masten, Kathryn; Lantz, Elaine; Perryman, Carol; Demuynck, Marie-Anne; Boonme, Kittipong; Fette, Claudette et al.
Object Type:
Paper
System:
The UNT Digital Library
Exploration and Resource Assessment at Mountain Home Air Force Base, Idaho Using an Integrated Team Approach
The U.S. Air Force is facing a number of challenges as it moves into the future, one of the biggest being how to provide safe and secure energy to support base operations. A team of scientists and engineers met at Mountain Home Air Force Base near Boise, Idaho, to discuss the possibility of exploring for geothermal resources under the base. The team identified that there was a reasonable potential for geothermal resources based on data from an existing well. In addition, a regional gravity map helped identify several possible locations for drilling a new well. The team identified several possible sources of funding for this well—the most logical being to use U.S. Department of Energy funds to drill the upper half of the well and U.S. Air Force funds to drill the bottom half of the well. The well was designed as a slimhole well in accordance with State of Idaho Department of Water Resources rules and regulations. Drilling operations commenced at the Mountain Home site in July of 2011 and were completed in January of 2012. Temperatures increased gradually, especially below a depth of 2000 ft. Temperatures increased more rapidly below a depth of 5500 ft. The bottom of …
Date:
October 1, 2012
Creator:
Armstrong, Joseph C.; Breckenridge, Robert P.; Nielson, Dennis L.; Shervais, John W. & Wood, Thomas R.
Object Type:
Article
System:
The UNT Digital Library
Foundations to the unified psycho-cognitive engine.
This document outlines the key features of the SNL psychological engine. The engine is designed to be a generic presentation of cognitive entities interacting among themselves and with the external world. The engine combines the most accepted theories of behavioral psychology with those of behavioral economics to produce a unified simulation of human response from stimuli through executed behavior. The engine explicitly recognizes emotive and reasoned contributions to behavior and simulates the dynamics associated with cue processing, learning, and choice selection. Most importantly, the model parameterization can come from available media or survey information, as well subject-matter-expert information. The framework design allows the use of uncertainty quantification and sensitivity analysis to manage confidence in using the analysis results for intervention decisions.
Date:
October 1, 2010
Creator:
Bernard, Michael Lewis; Bier, Asmeret Brooke; Backus, George A.; Verzi, Stephen J. & Glickman, Matthew R.
Object Type:
Report
System:
The UNT Digital Library
Combined effects of elevated temperature and Deepwater Horizon oil exposure on the cardiac performance of larval mahi-mahi, Coryphaena hippurus
This article investigates physiological responses of larval fish to interactions between anthropogenic crude oile xposure andn atural factors.
Date:
October 17, 2018
Creator:
Perrichon, Prescilla; Mager, Edward M.; Pasparakis, Christina; Stieglitz, John D.; Benetti, Daniel D.; Grosell, Martin et al.
Object Type:
Article
System:
The UNT Digital Library
Reference design and operations for deep borehole disposal of high-level radioactive waste.
A reference design and operational procedures for the disposal of high-level radioactive waste in deep boreholes have been developed and documented. The design and operations are feasible with currently available technology and meet existing safety and anticipated regulatory requirements. Objectives of the reference design include providing a baseline for more detailed technical analyses of system performance and serving as a basis for comparing design alternatives. Numerous factors suggest that deep borehole disposal of high-level radioactive waste is inherently safe. Several lines of evidence indicate that groundwater at depths of several kilometers in continental crystalline basement rocks has long residence times and low velocity. High salinity fluids have limited potential for vertical flow because of density stratification and prevent colloidal transport of radionuclides. Geochemically reducing conditions in the deep subsurface limit the solubility and enhance the retardation of key radionuclides. A non-technical advantage that the deep borehole concept may offer over a repository concept is that of facilitating incremental construction and loading at multiple perhaps regional locations. The disposal borehole would be drilled to a depth of 5,000 m using a telescoping design and would be logged and tested prior to waste emplacement. Waste canisters would be constructed of carbon steel, …
Date:
October 1, 2011
Creator:
Herrick, Courtney Grant; Brady, Patrick Vane; Pye, Steven; Arnold, Bill Walter; Finger, John Travis & Bauer, Stephen J.
Object Type:
Report
System:
The UNT Digital Library
Computational Mechanics Research and Support for Aerodynamics and Hydraulics at TFRHC, Year 2 Quarter 3 Progress Report
None
Date:
October 4, 2012
Creator:
Lottes, S.A.; Bojanowski, C.; Shen, J.; Xie, Z.; Zhai, Y. (Energy Systems) & Center), (Turner-Fairbank Highway Research
Object Type:
Report
System:
The UNT Digital Library
The Ranger Ideal Volume 2: Texas Rangers in the Hall of Fame, 1874-1930
Access:
Use of this item is restricted to the UNT Community
Established in Waco in 1968, the Texas Ranger Hall of Fame and Museum honors the iconic Texas Rangers, a service that has existed, in one form or another, since 1823. They have become legendary symbols of Texas and the American West. In The Ranger Ideal Volume 2: Texas Rangers in the Hall of Fame, 1874-1930, Darren L. Ivey presents the twelve inductees who served Texas in the latter half of the nineteenth century. Ivey begins with John B. Jones, who directed his Rangers from state troops to professional lawmen; then covers Leander H. McNelly, John B. Armstrong, James B. Gillett, Jesse Lee Hall, George W. Baylor, Bryan Marsh, and Ira Aten—the men who were responsible for some of the Rangers’ most legendary feats. Ivey concludes with James A. Brooks, William J. McDonald, John R. Hughes, and John H. Rogers, the “Four Great Captains” who guided the Texas Rangers into the twentieth century. The Ranger Ideal presents the true stories of these intrepid men who fought to tame a land with gallantry, grit, and guns.
Date:
October 2018
Creator:
Ivey, Darren L.
Object Type:
Book
System:
The UNT Digital Library
Development, Validation, and Application of the Microbiology Concept Inventory
This article describes the creation and validation of a new microbiology concept inventory using the American Society for Microbiology Curriculum Guidelines.
Date:
October 5, 2017
Creator:
Paustian, Timothy D.; Briggs, Amy G.; Brennan, R. E.; Boury, Nancy; Buchner, John; Harris, Shannon et al.
Object Type:
Article
System:
The UNT Digital Library
The Rattler (San Antonio, Tex.), Vol. 98, No. 3, Ed. 1 Wednesday, October 20, 2010
Student newspaper from St. Mary's University in San Antonio, Texas that includes campus news along with advertising.
Date:
October 20, 2010
Creator:
St. Mary's University (San Antonio, Tex.)
Object Type:
Newspaper
System:
The Portal to Texas History
The Hydrogen Corrosion of Uranium: Identification of Underlying Causes and Proposed Mitigation Strategies
None
Date:
October 25, 2012
Creator:
Loui, A
Object Type:
Report
System:
The UNT Digital Library
Sweetwater Reporter (Sweetwater, Tex.), Vol. 113, No. 272, Ed. 1 Sunday, October 2, 2011
Daily newspaper from Sweetwater, Texas that includes local, state, and national news along with advertising.
Date:
October 2, 2011
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Sweetwater Reporter (Sweetwater, Tex.), Vol. 113, No. 280, Ed. 1 Tuesday, October 11, 2011
Daily newspaper from Sweetwater, Texas that includes local, state, and national news along with advertising.
Date:
October 11, 2011
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Sweetwater Reporter (Sweetwater, Tex.), Vol. 112, No. 287, Ed. 1 Wednesday, October 20, 2010
Daily newspaper from Sweetwater, Texas that includes local, state, and national news along with advertising.
Date:
October 20, 2010
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Evaluating Cumulative Ecosystem Response to Restoration Projects in the Lower Columbia River and Estuary, 2009
This is the sixth annual report of a seven-year project (2004 through 2010) to evaluate the cumulative effects of habitat restoration actions in the lower Columbia River and estuary (LCRE). The project, called the Cumulative Effects Study, is being conducted for the U.S. Army Corps of Engineers Portland District (USACE) by the Marine Sciences Laboratory of the Pacific Northwest National Laboratory (PNNL), the Pt. Adams Biological Field Station of the National Marine Fisheries Service (NMFS), the Columbia River Estuary Study Taskforce (CREST), and the University of Washington. The goal of the Cumulative Effects Study is to develop a methodology to evaluate the cumulative effects of multiple habitat restoration projects intended to benefit ecosystems supporting juvenile salmonids in the 235-km-long LCRE. Literature review in 2004 revealed no existing methods for such an evaluation and suggested that cumulative effects could be additive or synergistic. From 2005 through 2009, annual field research involved intensive, comparative studies paired by habitat type (tidal swamp versus marsh), trajectory (restoration versus reference site), and restoration action (tidegate replacement vs. culvert replacement vs. dike breach).
Date:
October 26, 2010
Creator:
Johnson, Gary E.; Diefenderfer, Heida L.; Borde, Amy B.; Bryson, Amanda J.; Cameron, April; Coleman, Andre M. et al.
Object Type:
Report
System:
The UNT Digital Library