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[Funeral Program for Derek Dewayne Dixon, February 23, 2008]
Funeral program for Derek Dewayne Dixon, born May 16, 1984 and died February 17, 2008. The funeral was held February 23, 2008 at Redeeming Grace Baptist Church, officiated by Pastor Kenneth Brown. Funeral arrangements were made through Lewis Funeral Home and he was buried in Meadowlawn Memorial Park in San Antonio, Texas.
Date:
February 23, 2008
Creator:
A Clark's Creation
Object Type:
Pamphlet
System:
The Portal to Texas History
DEWATERING TREATMENT SCALE-UP TESTING RESULTS OF HANFORD TANK WASTES
This report documents CH2M HILL Hanford Group Inc. (CH2M HILL) 2007 dryer testing results in Richland, WA at the AMEC Nuclear Ltd., GeoMelt Division (AMEC) Horn Rapids Test Site. It provides a discussion of scope and results to qualify the dryer system as a viable unit-operation in the continuing evaluation of the bulk vitrification process. A 10,000 liter (L) dryer/mixer was tested for supplemental treatment of Hanford tank low-activity wastes, drying and mixing a simulated non-radioactive salt solution with glass forming minerals. Testing validated the full scale equipment for producing dried product similar to smaller scale tests, and qualified the dryer system for a subsequent integrated dryer/vitrification test using the same simulant and glass formers. The dryer system is planned for installation at the Hanford tank farms to dry/mix radioactive waste for final treatment evaluation of the supplemental bulk vitrification process.
Date:
January 23, 2008
Creator:
AR, TEDESCHI
Object Type:
Article
System:
The UNT Digital Library
Feedback damper system for quadrupole oscillations after transition at RHIC.
The heavy ion beam at RHIC undergoes strong quadrupole oscillations just after it crosses transition, which leads to an increase in bunch length making rebucketing less effective. A feedback system was built to damp these quadrupole oscillations and in this paper the characteristics of the system and the results obtained are presented and discussed.
Date:
June 23, 2008
Creator:
Abreu, N.; Blaskiewicz, M.; Brennan, J. M. & Schultheiss, C.
Object Type:
Article
System:
The UNT Digital Library
The effect of head-on beam-beam compensation on the stochastic boundaries and particle diffusion in RHIC.
To compensate the effects from the head-on beam-beam interactions in the polarized proton operation in the Relativistic Heavy Ion Collider (RHIC), an electron lens (elens) is proposed to collide head-on with the proton beam. We used an extended version of SixTrack for multiparticle beam-beam simulation in order to study the effect of the e-lens on the stochastic boundary and also on diffusion. The stochastic boundary was analyzed using Lyapunov exponents and the diffusion was characterized as the increase in the rms spread of the action. For both studies the simulations were performed with and without the e-lens and with full and partial compensation. Using the simulated values of the diffusion an attempt to calculate the emittance growth rate is presented.
Date:
June 23, 2008
Creator:
Abreu,N.; Beebe-Wang, J.; FischW; Luo, Y. & Robert-Demolaize, G.
Object Type:
Article
System:
The UNT Digital Library
Energy loss of coasting gold ions and deuterons in RHIC.
The total energy loss of coasting gold ion beams was measured at RHIC at two energies, corresponding to a gamma of 75.2 and 107.4. We describe the experiment and observations and compare the measured total energy loss with expectations from ionization losses at the residual gas, the energy loss due to impedance and synchrotron radiation. We find that the measured energy losses are below what is expected from free space synchrotron radiation. We believe that this shows evidence for suppression of synchrotron radiation which is cut off at long wavelength by the presence of the conducting beam pipe.
Date:
June 23, 2008
Creator:
Abreu,N.; Blaskiewicz, M.; Brown, K.A.; Butler, J.J.; FischW; Harvey, M. et al.
Object Type:
Article
System:
The UNT Digital Library
Proposed Changes to Regulations Governing Consultation Under the Endangered Species Act (ESA)
This report discusses the purpose of the Endangered Species Act (ESA), which is threefold: to provide a means to conserve ecosystems upon which endangered and threatened species depend; to provide a program to protect those species; and to take steps to achieve the purposes of related treaties and conventions.
Date:
September 23, 2008
Creator:
Alexander, Kristina & Corn, M. Lynne
Object Type:
Report
System:
The UNT Digital Library
Timpson & Tenaha News (Timpson, Tex.), Vol. 26, No. 43, Ed. 1 Thursday, October 23, 2008
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
October 23, 2008
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
A Les Houches Interface for BSM Generators
We propose to combine and slightly extend two existing 'Les Houches Accords' to provide a simple generic interface between beyond-the-standard-model parton-level and event-level generators. All relevant information--particle content, quantum numbers of new states, masses, cross sections, parton-level events, etc.--is collected in one single file, which adheres to the Les Houches Event File (LHEF) standard.
Date:
January 23, 2008
Creator:
Alwall, J.; Boos, E.; Dudko, L.; Gigg, M.; Herquet, M.; Pukhov, A. et al.
Object Type:
Report
System:
The UNT Digital Library
African American Members of the United States Congress: 1870-2008
This report provides statistics on the current numbers and roles of African American Members of Congress as well as historical data on African American Members of Congress.
Date:
July 23, 2008
Creator:
Amer, Mildred L.
Object Type:
Report
System:
The UNT Digital Library
Women in the United States Congress: 1917-2008
This report identifies the names, commmittee assignments, dates of service, and (for Representatives) districts of the 245 women who have served in Congress.
Date:
July 23, 2008
Creator:
Amer, Mildred L.
Object Type:
Report
System:
The UNT Digital Library
Doctoral Recital: 2008-11-23 – George Amorim, double bass
Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
November 23, 2008
Creator:
Amorim, George
Object Type:
Sound
System:
The UNT Digital Library
Exact solution of the envelope equations for a matched quadrupole-focused beam in the low space-charged limit
The Kapchinskij-Vladimirskij equations are widely used to study the evolution of the beam envelopes in a periodic system of quadrupole focusing cells. In this paper, we analyze the case of a matched beam. Our model is analogous to that used by Courant and Snyder [E.D. Courant and H.S. Snyder, Ann. Phys. 3, 1 (1958)]in obtaining a first-order approximate solution for a synchrotron. Here, we treat a linear machine and obtain an exact solution. The model uses a full occupancy, piecewise-constant focusing function and neglects space charge. There are solutions in an infinite number of bands as the focus strength is increased. We show that all these bands are stable. Our explicit results for the phase advance sigma and the envelope a(z) are exact for all phase advances except multiples of 180o, where the behavior is singular. We find that the peak envelope size is minimized at sigma = 90o. Actual operation in the higher bands would require very large, very accurate field strengths and would produce significantly larger envelope excursions.
Date:
September 23, 2008
Creator:
Anderson, O. A. & LoDestro, L. L.
Object Type:
Article
System:
The UNT Digital Library
Department of Defense Fuel Costs in Iraq
This report discusses the Department of Defense (DOD) fuel costs in Iraq. It analyzes the disparity between the higher price of fuel supplied to the United States Central Command compared to Iraq's civilian population that has been a point of contention.
Date:
July 23, 2008
Creator:
Andrews, Anthony & Schwartz, Moshe
Object Type:
Report
System:
The UNT Digital Library
Department of Defense Fuel Costs in Iraq
Since the invasion of Iraq in 2003, the average price of fuels purchased for military operations in Iraq has steadily increased. The disparity between the higher price of fuel supplied to the United States Central Command compared to Iraq's civilian population has been a point of contention. Several factors contribute to the disparity, including the different types of fuel used by the military compared to Iraqi civilians, the Iraqi government's price subsidies, and the level pricing that the DOD's Defense Logistics Agency charges for military customers around the world. The Iraqi government has been pressured to reduce its fuel subsidy and black market fuel prices remain higher than the official subsidized price.
Date:
July 23, 2008
Creator:
Andrews, Anthony & Schwartz, Moshe
Object Type:
Report
System:
The UNT Digital Library
Why Rich Religion Gets It Right
Lecture given Tuesday, September 23, 2008, 1:30 PM at Abilene Christian University: "Most Christians say they reject 'health and wealth' theology. Most Christians seem to want more than anything to be healthy and wealthy. Amos has something to say to most Christians."
Date:
September 23, 2008
Creator:
Atchley, Rick
Object Type:
Sound
System:
The Portal to Texas History
The Debt Limit: History and Recent Increases
This report contains a brief overview of the debt limit history, including the conference report on the FY2008 budget resolution.
Date:
September 23, 2008
Creator:
Austin, D. Andrew & Levit, Mindy R.
Object Type:
Report
System:
The UNT Digital Library
Would the Apostle Paul Use the Internet? Missions in a Wired World - Exciting Opportunities in Missions Through Videoconferencing
Lecture given Tuesday, September 23, 2008, 4:00 PM at Abilene Christian University: "Would you like to live with continuous contact with your missionaries and their work? Could you stretch your missions budget dollar? Find out how your missions program can expand, become more personal and more immediate."
Date:
September 23, 2008
Creator:
Austin, Steve
Object Type:
Sound
System:
The Portal to Texas History
An Instrument Design for the Accurate Determination of the Electron Beam Location in the Linac Coherent Light Source Undulator
The Linac Coherent Light Source (LCLS), currently under design, requires accurate alignment between the electron beam and each undulator's magnetic centerline. A beam finder wire (BFW) instrument has been developed to provide beam location information that is used to move the undulators to their appropriate positions. A BFW instrument is mounted at each of the 33 magnets in the undulator section. Beam detection is achieved by electrons impacting two carbon fiber wires and then sensing the downstream radiation. The wires are mounted vertically and horizontally on a wire card similar to that of a traditional wire scanner instrument. The development of the BFW presents several design challenges due to the need for high accuracy of the wires locations and the need for removal of the wires during actual operation of the LCLS (30 microns repeatability is required for the wire locations). In this paper, we present the technical specification, design criteria, mechanical design, and results from prototype tests for the BFW.
Date:
January 23, 2008
Creator:
Bailey, J. L.; Capatina, D.; Morgan, J. W. & Nuhn, H. D.
Object Type:
Article
System:
The UNT Digital Library
High-contrast imaging testbed
Several high-contrast imaging systems are currently under construction to enable the detection of extra-solar planets. In order for these systems to achieve their objectives, however, there is considerable developmental work and testing which must take place. Given the need to perform these tests, a spatially-filtered Shack-Hartmann adaptive optics system has been assembled to evaluate new algorithms and hardware configurations which will be implemented in these future high-contrast imaging systems. In this article, construction and phase measurements of a membrane 'woofer' mirror are presented. In addition, results from closed-loop operation of the assembled testbed with static phase plates are presented. The testbed is currently being upgraded to enable operation at speeds approaching 500 hz and to enable studies of the interactions between the woofer and tweeter deformable mirrors.
Date:
January 23, 2008
Creator:
Baker, K. L.; Silva, D. A.; Poyneer, L. A.; Macintosh, B. S.; Bauman, B. J.; Palmer, D. et al.
Object Type:
Article
System:
The UNT Digital Library
Doctoral Recital: 2008-05-23 – Stephen Beall, viola
Doctoral recital presented at the UNT College of Music Concert Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
May 23, 2008
Creator:
Beall, Stephen (Violist)
Object Type:
Sound
System:
The UNT Digital Library
Biotechnology in Animal Agriculture: Status and Current Issues
This report describes several scientifically-emerging animal biotechnologies that are raising a variety of questions concerning risks to humans, animals, and the environment, as well as ethical concerns. The report examines applications of the technologies and discusses major issues that may arise.
Date:
September 23, 2008
Creator:
Becker, Geoffrey S. & Cowan, Tadlock
Object Type:
Report
System:
The UNT Digital Library
The Cost of Iraq, Afghanistan, and Other Global War on Terror Operations Since 9/11
This report analyzes war funding for the Defense Department and tracks funding for USAID and VA Medical funding.
Date:
June 23, 2008
Creator:
Belasco, Amy
Object Type:
Report
System:
The UNT Digital Library
VORPAL simulations relevant to coherent electron cooling
Coherent electron cooling (CEC) [1] combines the best features of electron cooling and stochastic cooling, via free-electron laser technology [2], to offer the possibility of cooling high-energy hadron beams with order-of-magnitude shorter cooling times. Many technical difficulties must be resolved via full-scale 3D simulations, before the CEC concept can be validated experimentally. VORPAL is the ideal code for simulating the modulator and kicker regions, where the electron and hadron beams will co-propagate as in a conventional electron cooling section. Unlike previous VORPAL simulations [3] of electron cooling physics, where dynamical friction on the ions was the key metric, it is the details of the electron density wake driven by each ion in the modulator section that must be understood, followed by strong amplification in the FEL. We present some initial simulation results.
Date:
June 23, 2008
Creator:
Bell, G.; Bruhwiler, D.; Sobol, A.; Ben-Zvi, Ilan; Litvinenko, V. & Derbenev, Y.
Object Type:
Article
System:
The UNT Digital Library
Ultra Low Emittance Light Sources
This paper outlines the special issues for reaching sub-nm emittance in a storage ring. Effects of damping wigglers, intra-beam scattering and lifetime issues, dynamic aperture optimization, control of optics, and their interrelations are covered in some detail. The unique choices for the NSLS-II are given as one example.
Date:
June 23, 2008
Creator:
Bengtsson,J.
Object Type:
Article
System:
The UNT Digital Library