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The Intelligence Appropriations Process: Issues for Congress
The intelligence appropriations process remains complicated and not well understood, but intelligence is an important and sizable part of the federal budget and will undoubtedly be addressed as Congress considers various alternatives for spending. This report reviews the intelligence appropriations process, describes various changes that have been proposed, and analyzes the issues associated with the proposals.
Date:
October 27, 2011
Creator:
Best, Richard A., Jr.
Object Type:
Report
System:
The UNT Digital Library
Workshop on Precision Measurements of $\alpha_s$
These are the proceedings of the Workshop on Precision Measurements of {alpha}{sub s} held at the Max-Planck-Institute for Physics, Munich, February 9-11, 2011. The workshop explored in depth the determination of {alpha}{sub s}(m{sub Z}) in the {ovr MS} scheme from the key categories where high precision measurements are currently being made, including DIS and global PDF fits, {tau}-decays, electro-weak precision observables and Z-decays, event-shapes, and lattice QCD. These proceedings contain a short summary contribution from the speakers, as well as the lists of authors, conveners, participants, and talks.
Date:
October 1, 2011
Creator:
Bethke, Siegfried; /Munich, Max Planck Inst.; Hoang, Andre H.; U., /Vienna; Kluth, Stefan; /Munich, Max Planck Inst. et al.
Object Type:
Article
System:
The UNT Digital Library
Design of a 10**36 CM-2 S-1 Super-B Factory
Parameters have been studied for a high luminosity e{sup +}e{sup -} collider operating at the Upsilon 4S that would deliver a luminosity of 1 to 4 x 10{sup 36}/cm{sup 2}/s. This collider, called a Super-B Factory, would use a combination of linear collider and storage ring techniques. In this scheme an electron beam and a positron beam are stored in low-emittance damping rings similar to those designed for a Linear Collider (LC) or the next generation light source. A LC style interaction region is included in the ring to produce sub-millimeter vertical beta functions at the collision point. A large crossing angle (+/- 24 mrad) is used at the collision point to allow beam separation. A crab-waist scheme is used to reduce the hourglass effect and restore peak luminosity. Beam currents of 1.8 A at 4 x 7 GeV in 1251 bunches can produce a luminosity of 10{sup 36}/cm{sup 2}/s with upgrade possibilities. Such a collider would produce an integrated luminosity of about 10,000 fb{sup -1} (10 ab{sup -1}) in a running year (10{sup 7} sec) at the {gamma}(4S) resonance. Further possibilities include having longitudinally polarized e- at the IR and operating at the J/Psi and Psi beam energies.
Date:
October 24, 2011
Creator:
Biagini, M.E.; Boni, R.; Boscolo, M.; Demma, T.; Drago, A.; Guiducci, S. et al.
Object Type:
Article
System:
The UNT Digital Library
New Low Emittance Lattice for the Super-B Accelerator
New low emittance lattices have been designed for the asymmetric SuperB accelerator, aiming at a luminosity of 10{sup 36} cm{sup -2} s{sup -1}. Main optics features are two alternating arc cells with different horizontal phase advance, decreasing beam emittance and allowing at the same time for easy chromaticity correction in the arcs. Emittance can be further reduced by a factor of two for luminosity upgrade. Spin rotation schemes for the e{sup -} beam have been studied to provide longitudinal polarization at the IP, and implementation into the lattice is in progress.
Date:
October 21, 2011
Creator:
Biagini, M.E.; Boscolo, M.; Raimondi, P.; Tomassini, S.; Zobov, M.; /Frascati et al.
Object Type:
Article
System:
The UNT Digital Library
Structural Design of a Horizontal-Axis Tidal Current Turbine Composite Blade
This paper describes the structural design of a tidal composite blade. The structural design is preceded by two steps: hydrodynamic design and determination of extreme loads. The hydrodynamic design provides the chord and twist distributions along the blade length that result in optimal performance of the tidal turbine over its lifetime. The extreme loads, i.e. the extreme flap and edgewise loads that the blade would likely encounter over its lifetime, are associated with extreme tidal flow conditions and are obtained using a computational fluid dynamics (CFD) software. Given the blade external shape and the extreme loads, we use a laminate-theory-based structural design to determine the optimal layout of composite laminas such that the ultimate-strength and buckling-resistance criteria are satisfied at all points in the blade. The structural design approach allows for arbitrary specification of the chord, twist, and airfoil geometry along the blade and an arbitrary number of shear webs. In addition, certain fabrication criteria are imposed, for example, each composite laminate must be an integral multiple of its constituent ply thickness. In the present effort, the structural design uses only static extreme loads; dynamic-loads-based fatigue design will be addressed in the future. Following the blade design, we compute the …
Date:
October 1, 2011
Creator:
Bir, G. S.; Lawson, M. J. & Li, Y.
Object Type:
Article
System:
The UNT Digital Library
Computational Needs for the Next Generation Electric Grid Proceedings
The April 2011 DOE workshop, 'Computational Needs for the Next Generation Electric Grid', was the culmination of a year-long process to bring together some of the Nation's leading researchers and experts to identify computational challenges associated with the operation and planning of the electric power system. The attached papers provide a journey into these experts' insights, highlighting a class of mathematical and computational problems relevant for potential power systems research. While each paper defines a specific problem area, there were several recurrent themes. First, the breadth and depth of power system data has expanded tremendously over the past decade. This provides the potential for new control approaches and operator tools that can enhance system efficiencies and improve reliability. However, the large volume of data poses its own challenges, and could benefit from application of advances in computer networking and architecture, as well as data base structures. Second, the computational complexity of the underlying system problems is growing. Transmitting electricity from clean, domestic energy resources in remote regions to urban consumers, for example, requires broader, regional planning over multi-decade time horizons. Yet, it may also mean operational focus on local solutions and shorter timescales, as reactive power and system dynamics (including …
Date:
October 5, 2011
Creator:
Birman, Kenneth; Ganesh, Lakshmi; Renessee, Robbert van; Ferris, Michael; Hofmann, Andreas; Williams, Brian et al.
Object Type:
Article
System:
The UNT Digital Library
[Beta Theta Pi alumni at John Hurst reception]
Photograph of former members of the Beta Theta Pi fraternity at a reception celebrating the naming of the Captain John Clark Hurst Naval Commanding Officer's room in the College of Liberal Arts at the University of Texas, Austin. They are positioned in four rows, facing the camera and smiling. Members of the group have been identified as: (back standing l-r) Mike Simpson, Jim Dyer, George Harcourt, Makkie Hruska, Mike Townsend, Jim Nicholson, Mike Zeeck, Carroll Sunseri, Charles Hickox, Mike Harris, Pat McLean, John LeFlore, John Shawe; (standing l-r) Bill Kirkgard, Joe Rust, Covey Nash, Will Jordan, Tom Cook, Bill Hanover, Jim McDugald, Gordon Muir, Jim Grevelle, Sam Dibrell, Ed Price, Alan Nalle, Gerald Simpson, Phil Thrash, John Treadwell, Woody Scott; (sitting l-r) George Brown, Larry Littleton, Ralph Peterson, Blair Cherry, Ross Vick, Brian O'Connor, Sam Evans, Larry Jordan, Nick Sikes, Gregg Young; (kneeling l-r) Mike Pearson, Sid Jarnagin, Ray Polk, Ed Tatum, and Mike English.
Date:
October 13, 2011
Creator:
Birzer, Brian
Object Type:
Photograph
System:
The UNT Digital Library
Comparative Study of Vented vs. Unvented Crawlspaces
There has been a significant amount of research in the area of building energy efficiency and durability. However, well-documented quantitative information on the impact of crawlspaces on the performance of residential structures is lacking. The objective of this study was to evaluate and compare the effects of two crawlspace strategies on the whole-house performance of a pair of houses in a mixed humid climate. These houses were built with advanced envelope systems to provide energy savings of 50% or more compared to traditional 2010 new construction. One crawlspace contains insulated walls and is sealed and semi-conditioned. The other is a traditional vented crawlspace with insulation in the crawlspace ceiling. The vented (traditional) crawlspace contains fiberglass batts installed in the floor chase cavities above the crawl, while the sealed and insulated crawlspace contains foil-faced polyisocyanurate foam insulation on the interior side of the masonry walls. Various sensors to measure temperatures, heat flux through crawlspace walls and ceiling, and relative humidity were installed in the two crawlspaces. Data from these sensors have been analyzed to compare the performance of the two crawlspace designs. The analysis results indicated that the sealed and insulated crawlspace design is better than the traditional vented crawlspace in …
Date:
October 1, 2011
Creator:
Biswas, Kaushik; Christian, Jeffrey E & Gehl, Anthony C
Object Type:
Report
System:
The UNT Digital Library
[Program: Dream Concert Featuring KirOndria Woods and Rachel Woods]
Program for a youth performance featuring KirOndria and Rachel Woods and produced by the Black Academy of Arts and Letters on October 21-22, 2011 at the Clarence Muse Cafe Theatre.
Date:
October 2011
Creator:
Black Academy of Arts and Letters
Object Type:
Pamphlet
System:
The UNT Digital Library
ULTRACOATINGS - Enabling Energy and Power Solutions in High Contact Stress Environments Through Next Generation Nanocoatings
This work was a portion of a larger DOE/ITP Grand Challenge project led by Eaton Corporation and which included Ames Lab, Borg Warner Morse, and Pratt and Whitney Rocketdyne. The current report summarizes work done under a CRADA between ORNL and Eaton. Tests of two types were performed at ORNL during the course of this work: (1) simulations of timing chain wear and friction under reciprocating conditions, and (2) pin-on-disk screening tests for bearings undergoing unidirectional sliding. The four materials supplied for evaluation in a timing chain link simulation were hardened type 440B stainless steel, nitrided type 440B stainless steel, VC-coated type 52100 bearing steel, and (ZrTi)B-coated type 52100 bearing steel. Reciprocating wear tests revealed that the VC coating was by far the most wear resistant. In friction, the nitrided stainless steel did slightly better than the other materials. The results will also be included in the overall project report by Eaton Corp.
Date:
October 1, 2011
Creator:
Blau, Peter Julian; Qu, Jun & Higdon, Clifton
Object Type:
Report
System:
The UNT Digital Library
Materials for High-Pressure Fuel Injection Systems
None
Date:
October 1, 2011
Creator:
Blau, Peter Julian; Shyam, Amit; Hubbard, Camden R; Howe, Jane Y; Trejo, Rosa M; Yang, Nan et al.
Object Type:
Report
System:
The UNT Digital Library
MASH test 3-11 on the 5-inch cast in place deck barrier anchors
Report on crash tests conducted to evaluate the performance of a Texas T223 concrete beam and post bridge rail anchored with 5-inch cast-in-place deck. The test concluded that the 5-inch cast-in-place deck met the required MASH regulations.
Date:
October 2011
Creator:
Bligh, Roger P.; Menges, Wanda L. & Arrington, Dusty R.
Object Type:
Report
System:
The Portal to Texas History
MASH test 3-37 of the TxDOT 31-inch w-beam downstream anchor terminal
Report discussing the findings of a study exploring issues related to roadside safety devices. It includes background information, system details, test requirements and evaluation criteria, crash test procedures, crash test results, and conclusions.
Date:
October 2011
Creator:
Bligh, Roger P.; Menges, Wanda L. & Arrington, Dusty R.
Object Type:
Report
System:
The Portal to Texas History
Interim Closure Activities at Corrective Action Unit 114: Area 25 EMAD Facility, Nevada National Security Site, Nevada
This letter report documents interim activities that have been completed at CAU 114 to support ongoing access and generate information necessary to plan future closure activities. General housekeeping and cleanup of debris was conducted in the EMAD yard, cold bays, support areas of Building 3900, and postmortem cell tunnel area of the hot bay. All non-asbestos ceiling tiles and loose and broken non-friable asbestos floor tiles were removed from support galleries and office areas. Non-radiologically contaminated piping and equipment in the cold areas of the building and in the two 120-ton locomotives in the yard were tapped, characterized, drained, and verified free of contents.
Date:
October 24, 2011
Creator:
Boehlecke, R. F.
Object Type:
Report
System:
The UNT Digital Library
Muon Acceleration - RLA and FFAG
Various acceleration schemes for muons are presented. The overall goal of the acceleration systems: large acceptance acceleration to 25 GeV and 'beam shaping' can be accomplished by various fixed field accelerators at different stages. They involve three superconducting linacs: a single pass linear Pre-accelerator followed by a pair of multi-pass Recirculating Linear Accelerators (RLA) and finally a non-scaling FFAG ring. The present baseline acceleration scenario has been optimized to take maximum advantage of appropriate acceleration scheme at a given stage. The solenoid based Pre-accelerator offers very large acceptance and facilitates correction of energy gain across the bunch and significant longitudinal compression trough induced synchrotron motion. However, far off-crest acceleration reduces the effective acceleration gradient and adds complexity through the requirement of individual RF phase control for each cavity. The RLAs offer very efficient usage of high gradient superconducting RF and ability to adjust path-length after each linac pass through individual return arcs with uniformly periodic FODO optics suitable for chromatic compensation of emittance dilution with sextupoles. However, they require spreaders/recombiners switchyards at both linac ends and significant total length of the arcs. The non-scaling Fixed Field Alternating Gradient (FFAG) ring combines compactness with very large chromatic acceptance (twice the injection …
Date:
October 1, 2011
Creator:
Bogacz, Alex
Object Type:
Article
System:
The UNT Digital Library
Understanding Trends in Wind Turbine Prices Over the Past Decade
Taking a bottom-up approach, this report examines seven primary drivers of wind turbine prices in the United States, with the goal of estimating the degree to which each contributed to the doubling in turbine prices from 2002 through 2008, as well as the subsequent decline in prices through 2010 (our analysis does not extend into 2011 because several of these drivers are best gauged on a full-year basis due to seasonality issues). The first four of these drivers can be considered, at least to some degree, endogenous influences – i.e., those that are largely within the control of the wind industry – and include changes in: 1) Labor costs, which have historically risen during times of tight turbine supply; 2) Warranty provisions, which reflect technology performance and reliability, and are most often capitalized in turbine prices; 3) Turbine manufacturer profitability, which can impact turbine prices independently of costs; and 4) Turbine design, which for the purpose of this analysis is principally manifested through increased turbine size. The other three drivers analyzed in this study can be considered exogenous influences, in that they can impact wind turbine costs but fall mostly outside of the direct control of the wind industry. These …
Date:
October 26, 2011
Creator:
Bolinger, Mark & Wiser, Ryan
Object Type:
Report
System:
The UNT Digital Library
Development of Cdznte Radiation Detectors
Cadmium Zinc Telluride (CdZnTe or CZT) is a very attractive material for room-temperature semiconductor detectors because of its wide band-gap and high atomic number. Despite these advantages, CZT still presents some material limitations and poor hole mobility. In the past decade most of the developing CZT detectors focused on designing different electrode configurations, mainly to minimize the deleterious effect due to the poor hole mobility. A few different electrode geometries were designed and fabricated, such as pixelated anodes and Frisch-grid detectors developed at Brookhaven National Lab (BNL). However, crystal defects in CZT materials still limit the yield of detector-grade crystals, and, in general, dominate the detector's performance. In the past few years, our group's research extended to characterizing the CZT materials at the micro-scale, and to correlating crystal defects with the detector's performance. We built a set of unique tools for this purpose, including infrared (IR) transmission microscopy, X-ray micro-scale mapping using synchrotron light source, X-ray transmission- and reflection-topography, current deep level transient spectroscopy (I-DLTS), and photoluminescence measurements. Our most recent work on CZT detectors was directed towards detailing various crystal defects, studying the internal electrical field, and delineating the effects of thermal annealing on improving the material properties. In …
Date:
October 23, 2011
Creator:
Bolotnikov, A.; Camarda, G.; Hossain, A.; Kim, K. H.; Yang, G.; Gul, R. et al.
Object Type:
Article
System:
The UNT Digital Library
Study of the Two-Body Charmless B Decays with the Babar Experiment
Charmless two-body B decays are a powerful source of information for the CKM parameters, for the CP asymmetries and last but not least for the understanding of the hadronic uncertainties.
Date:
October 12, 2011
Creator:
Bona, M.
Object Type:
Article
System:
The UNT Digital Library
Study of the Decays of Charm Mesons With the BaBar Experiment
Presented hadronic form factor measurements of D{sup 0} {yields} K{sup -}e{sup +}{nu}{sub e} and D{sub s}{sup +} {yields} {phi}e{sup +}{nu}{sub e} with - dramatically reduced measurement error and first q{sup 2}-dependent study of D{sub s}{sup +} {yields} {phi}e{sup +}{nu}{sub e}. First observation at > 6.5{sigma} level of doubly-Cabibbo suppressed D{sup +} {yields} K{sup +}{pi}{sup 0} decay mode - BF(D{sup +} {yields} K{sup +}{pi}{sup 0}) = (2.52 {+-} 0.47(stat) {+-} 0.25(syst) {+-} 0.08(ref)) x 10{sup -4}. Improved measurements of Cabibbo-suppressed to Cabibbo-favored branching ratios for D{sup 0} {yields} {pi}{sup -}{pi}{sup +}{pi}{sup 0} and D{sup 0} {yields} K{sup -}K{sup +}{pi}{sup 0} decay modes.
Date:
October 12, 2011
Creator:
Bondioli, Mario & /UC, Irvine
Object Type:
Article
System:
The UNT Digital Library
Doctoral Recital: 2011-10-10 - Kurt Bonnett, trumpet
Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
October 10, 2011
Creator:
Bonnett, Kurt
Object Type:
Sound
System:
The UNT Digital Library
The Big Thicket Guidebook: Exploring the Backroads and History of Southeast Texas
Access:
Use of this item is restricted to the UNT Community
Start your engines and follow the backroads, the historical paths, and the scenic landscape that were fashioned by geologic Ice Ages and traveled by Big Thicket explorers as well as contemporary park advocates—all as diverse as the Big Thicket itself. From Spanish missionaries to Jayhawkers, and from timber barons to public officials, you will meet some unusual characters who inhabited an exceptional region. The Big Thicket and its National Preserve contain plants and animals from deserts and swamps and ecosystems in between, all together in one amazing Biological Crossroad. The fifteen tours included with maps will take you through them all. Visitors curious about a legendary area will find this book an essential companion in their cars. Libraries will use the book as a reference to locate information on ghost towns, historic events, and National Preserve features. “A result of a prodigious amount of local research as well as a great deal of driving and tramping around, this book might end up as a classic.”—Thad Sitton, author of Backwoodsmen: Stockmen and Hunters along a Big Thicket River Valley
Date:
October 15, 2011
Creator:
Bonney, Lorraine G.
Object Type:
Book
System:
The UNT Digital Library
Doctoral Lecture Recital: 2011-10-28 – Michael Bonney, piano
Recital presented at the UNT Recital Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
October 28, 2011
Creator:
Bonney, Michael
Object Type:
Sound
System:
The UNT Digital Library
Oral History Interview with John P. Boswell, October 11, 2011
Transcript of an oral interview with John P. "J.P." Boswell. When Boswell finished high school in 1942, he went to work in a machine shop to help pay for college. He went to Notre Dame, where he joined the US Marine Corps in June, 1943. Boswell describes riding the train from his home to Parris Island, the drill instructors there and the training regimen. When he finished boot camp, Boswell was assigned to Drill Instructor School. Before long, Boswell went to Sea School and reported shortly thereafter to the USS Bennington (CV-20) at the Brooklyn Navy Yard. He served as an anti-aircraft gunner aboard the ship. Boswell shares many anecdotes about life aboard ship: going through the Panama Canal, liberty on Mog Mog, the harbor at Ulithi, etc. Eventually, Boswell was assigned to shore duty. He rode a breeches bouy to a destroyer and then was delivered to Guam. There, he was assigned to the unit of Marines that served as Admiral Nimitz's bodyguards. Boswell was with Admiral Nimitz aboard the USS Missouri (BB-63) for the Japanese surrender.
Date:
October 11, 2011
Creator:
Boswell, John P.
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with John P. Boswell, October 11, 2011
Transcript of an oral interview with John P. "J.P." Boswell. When Boswell finished high school in 1942, he went to work in a machine shop to help pay for college. He went to Notre Dame, where he joined the US Marine Corps in June, 1943. Boswell describes riding the train from his home to Parris Island, the drill instructors there and the training regimen. When he finished boot camp, Boswell was assigned to Drill Instructor School. Before long, Boswell went to Sea School and reported shortly thereafter to the USS Bennington (CV-20) at the Brooklyn Navy Yard. He served as an anti-aircraft gunner aboard the ship. Boswell shares many anecdotes about life aboard ship: going through the Panama Canal, liberty on Mog Mog, the harbor at Ulithi, etc. Eventually, Boswell was assigned to shore duty. He rode a breeches bouy to a destroyer and then was delivered to Guam. There, he was assigned to the unit of Marines that served as Admiral Nimitz's bodyguards. Boswell was with Admiral Nimitz aboard the USS Missouri (BB-63) for the Japanese surrender.
Date:
October 11, 2011
Creator:
Boswell, John P.
Object Type:
Text
System:
The Portal to Texas History