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CW Mode of Operation of a Proton FFAG Accelerator
N/A
Date:
September 1, 2005
Creator:
A., Ruggiero
Object Type:
Report
System:
The UNT Digital Library
Abilene Philharmonic Playbill: September 24-October 29, 2005
Program for an Abilene Philharmonic concert that ran from September 24th to October 29th (classical I and classical II) during the 56th season. It includes information about the pieces performed, artists and musicians, and advertising from local companies.
Date:
September 2005
Creator:
Abilene Philharmonic
Object Type:
Pamphlet
System:
The Portal to Texas History
Fundamentals of Natural Gas and Species Flows from Hydrate Dissociation-Applications to Safety and Sea Floor Instability
Natural gas production from the dissociation of methane hydrate in a confined reservoir by a depressurizing down-hole well was studied. The case that the well pressure was kept constant was treated and two different linearization schemes in an axisymmetric configuration were used in the analysis. For different fixed well pressures and reservoir temperatures, approximate self-similar solutions were obtained. Distributions of temperature, pressure and gas velocity field across the reservoir were evaluated. The distance of the decomposition front from the well and the natural gas production rate as functions of time were also computed. Time evolutions of the resulting profiles were presented in graphical forms and their differences with the constant well output results were studied. It was shown that the gas production rate was a sensitive function of well pressure and reservoir temperature. The sensitivity of the results to the linearization scheme used was also studied.
Date:
September 1, 2005
Creator:
Ahmadi, Goodarz
Object Type:
Report
System:
The UNT Digital Library
Oral History Interview with Doug Aitken, September 16, 2005
Transcript of an oral interview with Doug Aitken. When the attack on Pearl Harbor occurred, Aitken was nineteen and in college in California. He remained in college, earned his degree and was commissioned an ensign upon finishing school in 1944. He then went to radar school and trained for a position in the combat information center (CIC) of a destroyer. He soon reported aboard the USS Hugh W. Hadley (DD-774) in San Diego and headed for the Pacific. Soon, the Hadley was escorting other ships to Okinawa fo rthe invasion. Once there, the Hadley went on picket duty north of Okinawa on the lookout for kamikazes. Aitken describes a day in which the Hadley and other destroyers on picket station #15 off Okinawa were attacked by approximately 150 kamikazes in less than two hours. His battle station was inside the CIC. He also describes the Hadley being struck by three kamikazes and the crew abandoning ship. The Hadley was taken under tow to Kerama Retto for repairs, where she tied up alongside the USS Aaron Ward (DM-34), which had also been struck by numerous kamikazes. After repairs, the Hadley was towed to San Francisco. The war ended while she was …
Date:
September 16, 2005
Creator:
Aitken, Doug
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with Doug Aitken, September 16, 2005
Transcript of an oral interview with Doug Aitken. When the attack on Pearl Harbor occurred, Aitken was nineteen and in college in California. He remained in college, earned his degree and was commissioned an ensign upon finishing school in 1944. He then went to radar school and trained for a position in the combat information center (CIC) of a destroyer. He soon reported aboard the USS Hugh W. Hadley (DD-774) in San Diego and headed for the Pacific. Soon, the Hadley was escorting other ships to Okinawa fo rthe invasion. Once there, the Hadley went on picket duty north of Okinawa on the lookout for kamikazes. Aitken describes a day in which the Hadley and other destroyers on picket station #15 off Okinawa were attacked by approximately 150 kamikazes in less than two hours. His battle station was inside the CIC. He also describes the Hadley being struck by three kamikazes and the crew abandoning ship. The Hadley was taken under tow to Kerama Retto for repairs, where she tied up alongside the USS Aaron Ward (DM-34), which had also been struck by numerous kamikazes. After repairs, the Hadley was towed to San Francisco. The war ended while she was …
Date:
September 16, 2005
Creator:
Aitken, Doug
Object Type:
Text
System:
The Portal to Texas History
Limits on spin-dependent wimp-nucleon interactions from the cryogenic dark matter search
The Cryogenic Dark Matter Search (CDMS) is an experiment to detect weakly interacting massive particles (WIMPs) based on their interactions with Ge and Si nuclei. We report the results of an analysis of data from the first two runs of CDMS at the Soudan Underground Laboratory in terms of spin-dependent WIMP-nucleon interactions on {sup 73}Ge and {sup 29}Si. These data exclude new regions of spin-dependent WIMP-nucleon interaction parameter space, including regions relevant to spin-dependent interpretations of the annual modulation signal reported by the DAMA/NaI experiment.
Date:
September 1, 2005
Creator:
Akerib, D. S.; Armel-Funkhouser, M. S.; Attisha, M. J.; Bailey, C. N.; Baudis, L.; Bauer, Daniel A. et al.
Object Type:
Article
System:
The UNT Digital Library
Limits on spin-independent wimp-nucleon interactions from the two-tower run of the cryogenic dark matter search
We report new results from the Cryogenic Dark Matter Search (CDMS II) at the Soudan Underground Laboratory. Two towers, each consisting of six detectors, were operated for 74.5 live days, giving spectrum-weighted exposures of 34 kg-d for germanium and 12 kg-d for silicon targets after cuts, averaged over recoil energies 10-100 keV for a WIMP mass of 60GeV/c{sup 2}. A blind analysis was conducted, incorporating improved techniques for rejecting surface events. No WIMP signal exceeding expected backgrounds was observed. When combined with our previous results from Soudan, the 90% C.L. upper limit on the spin-independent WIMP-nucleon cross section is 1.6 x 10{sup -43} cm{sup 2} from Ge, and 3 x 10{sup -42} cm{sup 2} from Si, for a WIMP mass of 60GeV/c{sup 2}. The combined limit from Ge (Si) is a factor of 2.5 (10) lower than our previous results, and constrains predictions of supersymmetric models.
Date:
September 1, 2005
Creator:
Akerib, D. S.; Attisha, M. J.; Bailey, C. N.; Baudis, L.; Bauer, Daniel A.; Brink, P. L. et al.
Object Type:
Article
System:
The UNT Digital Library
Development of a Novel Catalyst for NO Decomposition
Air pollution arising from the emission of nitrogen oxides as a result of combustion taking place in boilers, furnaces and engines, has increasingly been recognized as a problem. New methods to remove NOx emissions significantly and economically must be developed. The current technology for post-combustion removal of NO is the selective catalytic reduction (SCR) of NO by ammonia or possibly by a hydrocarbon such as methane. The catalytic decomposition of NO to give N{sub 2} will be preferable to the SCR process because it will eliminate the costs and operating problems associated with the use of an external reducing species. The most promising decomposition catalysts are transition metal (especially copper)-exchanged zeolites, perovskites, and noble metals supported on metal oxides such as alumina, silica, and ceria. The main shortcoming of the noble metal reducible oxide (NMRO) catalysts is that they are prone to deactivation by oxygen. It has been reported that catalysts containing tin oxide show oxygen adsorption behavior that may involve hydroxyl groups attached to the tin oxide. This is different than that observed with other noble metal-metal oxide combinations, which have the oxygen adsorbing on the noble metal and subsequently spilling over to the metal oxide. This observation leads …
Date:
September 29, 2005
Creator:
Akyurtlu, Ates & Akyurtlu, Jale F.
Object Type:
Report
System:
The UNT Digital Library
QCD and hard diffraction at the LHC
As an introduction to QCD at the LHC the author gives an overview of QCD at the Tevatron, emphasizing the high Q{sup 2} frontier which will be taken over by the LHC. After describing briefly the LHC detectors the author discusses high mass diffraction, in particular central exclusive production of Higgs and vector boson pairs. The author introduces the FP420 project to measure the scattered protons 420m downstream of ATLAS and CMS.
Date:
September 1, 2005
Creator:
Albrow, Michael G.
Object Type:
Article
System:
The UNT Digital Library
Precision Electroweak Measurements on the Z Presonance
The authors report on the final electroweak measurements performed with data taken at the Z resonance by the experiments operating at the electron-positron colliders SLC and LEP. the data consist of 17 million Z decays accumulated by the ALEPH, DELPHI, L3 and OPAL experiments at LEP, and 600 thousand Z decays by the SLD experiment using a polarized beam at SLC. The measurements include cross-sections, forward-backward asymmetries and polarized asymmetries. The mass and width of the Z boson, m{sub Z} and {Lambda}{sub Z}, and its couplings to fermions, for example the {rho} parameter and the effective electroweak mixing angle for leptons, are precisely measured: m{sub Z} = 91.1875 {+-} 0.0021 GeV; {Lambda}{sub Z} = 2.4952 {+-} 0.0023 GeV; {rho}{sub {ell}} = 1.0050 {+-} 0.0010; sin{sup 2} {theta}{sub eff}{sup lept} = 0.23153 {+-} 0.00016. The number of light neutrino species is determined to be 2.9840 {+-} 0.0082, in agreement with the three observed generations of fundamental fermions. The results are compared to the predictions of the Standard Model. At the Z-pole, electroweak radiative corrections beyond the running of the QED and QCD coupling constants are observed with a significance of five standard deviations, and in agreement with the Standard Model. of …
Date:
September 8, 2005
Creator:
Aleph,Delphi,L3,Opal,SLD , Collaborations
Object Type:
Report
System:
The UNT Digital Library
Electron Beam Ion Source Preinjector Project (EBIS) Conceptual Design Report.
This report describes a new heavy ion pre-injector for the Relativistic Heavy Ion Collider (RHIC) based on a high charge state Electron Beam Ion Source (EBIS), a Radio Frequency Quadrupole (RFQ) accelerator, and a short Linear accelerator (Linac). The highly successful development of an EBIS at Brookhaven National Laboratory (BNL) now makes it possible to replace the present pre-injector that is based on an electrostatic Tandem with a reliable, low maintenance Linac-based pre-injector. Linac-based preinjectors are presently used at most accelerator and collider facilities with the exception of RHIC, where the required gold beam intensities could only be met with a Tandem until the recent EBIS development. EBIS produces high charge state ions directly, eliminating the need for the two stripping foils presently used with the Tandem. Unstable stripping efficiencies of these foils are a significant source of luminosity degradation in RHIC. The high reliability and flexibility of the new Linac-based pre-injector will lead to increased integrated luminosity at RHIC and is an essential component for the long-term success of the RHIC facility. This new pre-injector, based on an EBIS, also has the potential for significant future intensity increases and can produce heavy ion beams of all species including uranium …
Date:
September 1, 2005
Creator:
Alessi, J.; Barton, D.; Beebe, E.; Gassner, D.; Grandinetti, R.; Hseuh, H. et al.
Object Type:
Report
System:
The UNT Digital Library
Use of Artificial Burrows by Burrowing Owls (Athene cunicularia) at the HAMMER Facility on the U.S. Department of Energy Hanford Site
In 2003 the U.S. Department of Energy (DOE) constructed an Emergency Vehicle Operations Course (EVOC) at the Hazardous Material Management and Emergency Response Training and Education Center (HAMMER) in the southern portion of the Hanford Site. Preliminary surveys during 2001 identified an active burrowing owl (Athene cunicularia) burrow and three burrowing owls within the proposed development area. Burrowing owls were classified as a federal species of concern, a Washington State ?candidate? species, a Washington Department of Fish and Wildlife priority species, and a Hanford Site Biological Resources Management Plan Level III resource. Therefore, the mitigation action plan for the project included the installation of twenty artificial burrows around EVOC in the spring of 2003. The mitigation plan established a success criterion of five percent annual use of the burrows by owls. In July 2005, a field survey of the EVOC burrow complex was conducted to determine use and demography at each site. Burrow locations were mapped and signs of activity (feces, owl tracks, castings, feathers) were recorded. Out of the twenty burrows, twelve were found to be active. Of the eight inactive burrows three appeared to have been active earlier in the 2005 breeding season. A total of nineteen owls …
Date:
September 30, 2005
Creator:
Alexander, Amanda K.; Sackschewsky, Michael R. & Duberstein, Corey A.
Object Type:
Report
System:
The UNT Digital Library
Timpson & Tenaha News (Timpson, Tex.), Vol. 20, No. 35, Ed. 1 Thursday, September 1, 2005
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
September 1, 2005
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Timpson & Tenaha News (Timpson, Tex.), Vol. 20, No. 36, Ed. 1 Thursday, September 8, 2005
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
September 8, 2005
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Timpson & Tenaha News (Timpson, Tex.), Vol. 20, No. 37, Ed. 1 Thursday, September 15, 2005
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
September 15, 2005
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Timpson & Tenaha News (Timpson, Tex.), Vol. 20, No. 38, Ed. 1 Thursday, September 22, 2005
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
September 22, 2005
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Timpson & Tenaha News (Timpson, Tex.), Vol. 20, No. 39, Ed. 1 Thursday, September 29, 2005
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
September 29, 2005
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Smart Screening System (S3) In Taconite Processing
The conventional screening machines used in processing plants have had undesirable high noise and vibration levels. They also have had unsatisfactorily low screening efficiency, high energy consumption, high maintenance cost, low productivity, and poor worker safety. These conventional vibrating machines have been used in almost every processing plant. Most of the current material separation technology uses heavy and inefficient electric motors with an unbalanced rotating mass to generate the shaking. In addition to being excessively noisy, inefficient, and high-maintenance, these vibrating machines are often the bottleneck in the entire process. Furthermore, these motors, along with the vibrating machines and supporting structure, shake other machines and structures in the vicinity. The latter increases maintenance costs while reducing worker health and safety. The conventional vibrating fine screens at taconite processing plants have had the same problems as those listed above. This has resulted in lower screening efficiency, higher energy and maintenance cost, and lower productivity and workers safety concerns. The focus of this work is on the design of a high performance screening machine suitable for taconite processing plants. SmartScreens{trademark} technology uses miniaturized motors, based on smart materials, to generate the shaking. The underlying technologies are Energy Flow Control{trademark} and Vibration Control …
Date:
September 1, 2005
Creator:
Allaei, Daryoush; Morison, Angus; Tarnowski, David & Mohammed, Asim Syed
Object Type:
Report
System:
The UNT Digital Library
A spectroscopic study of the ancient milky way: f- and g-type stars in the third data release of the sloan digital sky survey
We perform an analysis of spectra and photometry for 22,770 stars included in the third data release (DR3) of the Sloan Digital Sky Survey (SDSS). We measure radial velocities and, based on a model-atmosphere analysis, derive estimates of the atmospheric parameters (effective temperature, surface gravity, and [Fe/H]) for each star. Stellar evolution models are then used to estimate distances. We thoroughly check our analysis procedures using three recently published spectroscopic libraries of nearby stars, and compare our results with those obtained from alternative approaches. The SDSS sample covers a range in stellar brightness of 14 < V < 22, primarily at intermediate galactic latitudes, and comprises large numbers of F- and G-type stars from the thick-disk and halo populations (up to 100 kpc from the galactic plane), therefore including some of the oldest stars in the Milky Way. In agreement with previous results from the literature, we find that halo stars exhibit a broad range of iron abundances, with a peak at [Fe/H] {approx_equal} -1.4. This population exhibits essentially no galactic rotation. Thick-disk G-dwarf stars at distances from the galactic plane in the range 1 < |z| < 3 kpc show a much more compact metallicity distribution, with a maximum …
Date:
September 1, 2005
Creator:
Allende Prieto, Carlos; Beers, T. C.; Wilhelm, R.; Newberg, H. J.; Rockosi, C. M.; Yanny, B. et al.
Object Type:
Article
System:
The UNT Digital Library
2004 Environmental Report
The Lawrence Livermore National Laboratory (LLNL) annual Environmental Report, prepared for the Department of Energy (DOE) and made available to the public, presents summary environmental data that characterizes site environmental management performance, summarizes environmental occurrences and responses reported during the calendar year, confirms compliance with environmental standards and requirements, and highlights significant programs and efforts. By explaining the results of effluent and environmental monitoring, mentioning environmental performance indicators and performance measure programs, and assessing the impact of Laboratory operations on the environment and the public, the report also demonstrates LLNL's continuing commitment to minimize any potentially adverse impact of its operations. The combination of environmental and effluent monitoring, source characterization, and dose assessment showed that radiological doses to the public caused by LLNL operations in 2004 were less than 0.26% of regulatory standards and more than 11,000 times smaller than dose from natural background. Analytical results and evaluations generally showed continuing low levels of most contaminants; remediation efforts further reduced the concentrations of contaminants of concern in groundwater and soil vapor. In addition, LLNL's extensive environmental compliance activities related to water, air, endangered species, waste, wastewater, and waste reduction controlled or reduced LLNL's effects on the environment. LLNL's environmental program …
Date:
September 28, 2005
Creator:
Althouse, P E; Bertoldo, N. A.; Brown, R. A.; Campbell, C. B.; Clark, L. M.; Gallegos, G. M. et al.
Object Type:
Report
System:
The UNT Digital Library
Colleges and Universities Attended by Representatives of the 109th Congress
This report identifies the colleges and universities attended by representatives, delegates and the Resident Commissioner in the 109th Congress grouped by state.
Date:
September 13, 2005
Creator:
Amer, Mildred L.
Object Type:
Report
System:
The UNT Digital Library
Colleges and Universities Attended by Senators of the 109th Congress
This report identifies the colleges and universities attended by Senators serving in the 109th Congress. Where available in published sources, the degrees earned are also listed.
Date:
September 13, 2005
Creator:
Amer, Mildred L.
Object Type:
Report
System:
The UNT Digital Library
Women in the United States Congress: 1917-2005
This report identifies the names, committee assignments, dates of service, and (for Representatives) districts of the 229 women Members of Congress.
Date:
September 22, 2005
Creator:
Amer, Mildred L.
Object Type:
Report
System:
The UNT Digital Library
Southwest Retort, Volume 58, Number 1, September 2005
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
September 2005
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library