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HANFORD REGULATORY EXPERIENCE REGULATION AT HANFORD A CASE STUDY
Hanford has played a pivotal role in the United States' defense for more than 60 years, beginning with the Manhattan Project in the 1940s. During its history, the Hanford Site has had nine reactors producing plutonium for the United States' nuclear weapons program. All the reactors were located next to the Columbia River and all had associated low-level radioactive and hazardous waste releases. Site cleanup, which formally began in 1989 with the signing of the Hanford Federal Facility Agreement and Consent Order, also known as the Tri-Party Agreement, involves more than 1,600 waste sites and burial grounds, and the demolition of more than 1,500buildings and structures, Cleanup is scheduled to be complete by 2035. Regulatory oversight of the cleanup is being performed by the U.S. Environmental Protection Agency (EPA) and the Washington State Department of Ecology(Ecology) under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) and the Revised Code of Washington, 'Hazardous Waste Management.' Cleanup of the waste sites and demolition of the many buildings and structures generates large volumes of contaminated soil, equipment, demolition debris, and other wastes that must be disposed of in a secure manner to prevent further environmental degradation. From a risk perspective, it is …
Date:
September 24, 2007
Creator:
AR, HAWKINS
Object Type:
Article
System:
The UNT Digital Library
Alignment strategy for the ATLAS tracker
The ATLAS experiment is a multi-purpose particle detector that will study high-energy particle collisions produced by the Large Hadron Collider. For the reconstruction of charged particles, and their production and their decay vertices, ATLAS is equipped with a sophisticated tracking system, unprecedented in size and complexity. Full exploitation of both the Inner Detector and the muon spectrometer requires an accurate alignment. The challenge of aligning the ATLAS tracking devices is discussed, and the ATLAS alignment strategy is presented and illustrated with both data and Monte Carlo results.
Date:
September 23, 2007
Creator:
ATLAS & Golling, T.
Object Type:
Article
System:
The UNT Digital Library
Search for resonant t anti-t production in p anti-p collisions at s**(1/2) = 1.96-TeV
We report on a search for narrow-width particles decaying to a top and antitop quark pair. The data set used in the analysis corresponds to an integrated luminosity of 680 pb{sup -1} collected with the Collider Detector at Fermilab in Run II. We present 95% confidence level upper limits on the cross section times branching ratio. Assuming a specific top color-assisted technicolor production model, the leptophobic Z{prime} with width {Gamma}{sub Z{prime}} = 0.012M{sub Z{prime}}, we exclude the mass range M{sub Z{prime}} < 725 GeV/c{sup 2} at the 95% confidence level.
Date:
September 1, 2007
Creator:
Aaltonen, T.; Phys., /Helsinki Inst. of; Abulencia, A.; /Illinois U., Urbana; Adelman, J.; /Chicago U., EFI et al.
Object Type:
Article
System:
The UNT Digital Library
Measurement of the muon charge asymmetry from W boson decays
We present a measurement of the muon charge asymmetry from W boson decays using 0.3 fb{sup -1} of data collected at {radical}s = 1.96 GeV between 2002 and 2004 with the D0 detector at the Fermilab Tevatron p{bar p} Collider. We compare our findings with expectations from next-to-leading-order calculations performed using the CTEQ6.1M and MRST04 NLO parton distribution functions. Our findings can be used to constrain future parton distribution function fits.
Date:
September 1, 2007
Creator:
Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T. et al.
Object Type:
Article
System:
The UNT Digital Library
Separation of Corn Fiber and Conversion to Fuels and Chemicals Phase II: Pilot-scale Operation
The purpose of the Department of Energy (DOE)-supported corn fiber conversion project, “Separation of Corn Fiber and Conversion to Fuels and Chemicals Phase II: Pilot-scale Operation” is to develop and demonstrate an integrated, economical process for the separation of corn fiber into its principal components to produce higher value-added fuel (ethanol and biodiesel), nutraceuticals (phytosterols), chemicals (polyols), and animal feed (corn fiber molasses). This project has successfully demonstrated the corn fiber conversion process on the pilot scale, and ensured that the process will integrate well into existing ADM corn wet-mills. This process involves hydrolyzing the corn fiber to solubilize 50% of the corn fiber as oligosaccharides and soluble protein. The solubilized fiber is removed and the remaining fiber residue is solvent extracted to remove the corn fiber oil, which contains valuable phytosterols. The extracted oil is refined to separate the phytosterols and the remaining oil is converted to biodiesel. The de-oiled fiber is enzymatically hydrolyzed and remixed with the soluble oligosaccharides in a fermentation vessel where it is fermented by a recombinant yeast, which is capable of fermenting the glucose and xylose to produce ethanol. The fermentation broth is distilled to remove the ethanol. The stillage is centrifuged to separate …
Date:
September 28, 2007
Creator:
Abbas, Charles; Beery, Kyle; Orth, Rick & Zacher, Alan
Object Type:
Report
System:
The UNT Digital Library
DZero data-intensive computing on the Open Science Grid
High energy physics experiments periodically reprocess data, in order to take advantage of improved understanding of the detector and the data processing code. Between February and May 2007, the DZero experiment has reprocessed a substantial fraction of its dataset. This consists of half a billion events, corresponding to about 100 TB of data, organized in 300,000 files. The activity utilized resources from sites around the world, including a dozen sites participating to the Open Science Grid consortium (OSG). About 1,500 jobs were run every day across the OSG, consuming and producing hundreds of Gigabytes of data. Access to OSG computing and storage resources was coordinated by the SAM-Grid system. This system organized job access to a complex topology of data queues and job scheduling to clusters, using a SAM-Grid to OSG job forwarding infrastructure. For the first time in the lifetime of the experiment, a data intensive production activity was managed on a general purpose grid, such as OSG. This paper describes the implications of using OSG, where all resources are granted following an opportunistic model, the challenges of operating a data intensive activity over such large computing infrastructure, and the lessons learned throughout the project.
Date:
September 1, 2007
Creator:
Abbott, B.; U., /Oklahoma; Baranovski, A.; Diesburg, M.; Garzoglio, G.; /Fermilab et al.
Object Type:
Article
System:
The UNT Digital Library
Airborne Dust Cloud Measurements at the INL National Security Test Range
On July 11, 2007, a surface, high-explosive test (<20,000 lb TNT-equivalent) was carried out at the National Security Test Range (NSTR) on the Idaho National Laboratory (INL) Site. Aircraft-mounted rapid response (1-sec) particulate monitors were used to measure airborne PM-10 concentrations directly in the dust cloud and to develop a PM-10 emission factor that could be used for subsequent tests at the NSTR. The blast produced a mushroom-like dust cloud that rose approximately 2,500–3,000 ft above ground level, which quickly dissipated (within 5 miles of the source). In general, the cloud was smaller and less persistence than expected, or that might occur in other areas, likely due to the coarse sand and subsurface conditions that characterize the immediate NSTR area. Maximum short time-averaged (1-sec) PM-10 concentrations at the center of the cloud immediately after the event reached 421 µg m-3 but were rapidly reduced (by atmospheric dispersion and fallout) to near background levels (~10 µg m-3) after about 15 minutes. This occurred well within the INL Site boundary, about 8 km (5 miles) from the NSTR source. These findings demonstrate that maximum concentrations in ambient air beyond the INL Site boundary (closest is 11.2 km from NSTR) from these types …
Date:
September 1, 2007
Creator:
Abbott, Michael L.; Stanley, Norm; Radke, Larry & Smeltzer, Charles
Object Type:
Report
System:
The UNT Digital Library
Abilene Philharmonic Playbill: September 22-October 27, 2007
Program for an Abilene Philharmonic concert that ran from September 22nd to October 27th during the 58th season. It includes information about the pieces performed, artists and musicians, and advertising from local companies.
Date:
September 2007
Creator:
Abilene Philharmonic
Object Type:
Pamphlet
System:
The Portal to Texas History
Design and Implementation of the New D0 Level-1 Calorimeter Trigger
Increasing luminosity at the Fermilab Tevatron collider has led the D0 collaboration to make improvements to its detector beyond those already in place for Run IIa, which began in March 2001. One of the cornerstones of this Run IIb upgrade is a completely redesigned level-1 calorimeter trigger system. The new system employs novel architecture and algorithms to retain high efficiency for interesting events while substantially increasing rejection of background. We describe the design and implementation of the new level-1 calorimeter trigger hardware and discuss its performance during Run IIb data taking. In addition to strengthening the physics capabilities of D0, this trigger system will provide valuable insight into the operation of analogous devices to be used at LHC experiments.
Date:
September 1, 2007
Creator:
Abolins, M.; Adams, M.; Adams, T.; Aguilo, E.; Anderson, J.; Bagby, L. et al.
Object Type:
Article
System:
The UNT Digital Library
Modelos de interacción humano-ambiental: el enfoque de la Biocomplejidad
Article discussing models of human-nature interactions and a biocomplexity approach.
Date:
September 2007
Creator:
Acevedo, Miguel F.; Rosales, Judith; Delgado, Luz A.; Ablan, Magdiel; Dávila, Jacinto; Callicott, J. Baird et al.
Object Type:
Article
System:
The UNT Digital Library
Geometric metastability, quivers and holography
We use large N duality to study brane/anti-brane configurations on a class of Calabi-Yau manifolds. With only branes present, the Calabi-Yau manifolds in question give rise to N=2 ADE quiver theories deformed by superpotential terms. We show that the large N duality conjecture of hep-th/0610249 reproduces correctly the known qualitative features of the brane/anti-brane physics. In the supersymmetric case, the gauge theories have Seiberg dualities which are represented as flops in the geometry. Moreover, the holographic dual geometry encodes the whole RG flow of the gauge theory. In the non-supersymmetric case, the large N duality predicts that the brane/anti-brane theories also enjoy such dualities, and allows one to pick out the good description at a given energy scale.
Date:
September 6, 2007
Creator:
Aganagic, Mina; Aganagic, Mina; Beem, Christopher & Freivogel, Ben
Object Type:
Article
System:
The UNT Digital Library
Luxury Town, U.S.A.: High-End Brands Expand, And Austin Gets a Makeover --- New Wealth, Galas Draw Tiffany, Louis Vuitton; Nieman's Black Tie Plan
Article published in the Wall Street Journal about the growth of high-end retail in Austin, Texas.
Date:
September 4, 2007
Creator:
Agins, Teri
Object Type:
Article
System:
The UNT Digital Library
Global Security, Medical Isotopes, and Nuclear Science
Over the past century basic nuclear science research has led to the use of radioactive isotopes into a wide variety of applications that touch our lives everyday. Some are obvious, such as isotopes for medical diagnostics and treatment. Others are less so, such as National/Global security issues. And some we take for granted, like the small amount of 241Am that is in every smoke detector. At the beginning of this century, we are in a position where the prevalence and importance of some applications of nuclear science are pushing the basic nuclear science community for improved models and nuclear data. Yet, at the same time, the push by the basic nuclear science community to study nuclei that are farther and farther away from stability also offer new opportunities for many applications. This talk will look at several global security applications of nuclear science, summarizing current R&D and need for improved nuclear data It will also look at how applications of nuclear science, such as to medicine, will benefit from the push for more and more powerful radioactive ion beam facilities.
Date:
September 17, 2007
Creator:
Ahle, L. E.
Object Type:
Article
System:
The UNT Digital Library
Thermotunneling Based Cooling Systems for High Efficiency Buildings
GE Global Research's overall objective was to develop a novel thermotunneling-cooling device. The end use for these devices is the replacement of vapor cycle compression (VCC) units in residential and commercial cooling and refrigeration systems. Thermotunneling devices offer many advantages over vapor cycle compression cooling units. These include quiet, reliable, non-moving parts operation without refrigerant gases. Additionally theoretical calculations suggest that the efficiency of thermotunneling devices can be 1.5-2x that of VCC units. Given these attributes it can be seen that thermotunneling devices have the potential for dramatic energy savings and are environmentally friendly. A thermotunneling device consists of two low work function electrodes separated by a sub 10 nanometer-sized gap. Cooling by thermotunneling refers to the transport of hot electrons across the gap, from the object to be cooled (cathode) to the heat rejection electrode (anode), by an applied potential. GE Global Research's goal was to model, design, fabricate devices and demonstrate cooling base on the thermotunneling technology.
Date:
September 30, 2007
Creator:
Aimi, Marco; Arik, Mehmet; Bray, James; Gorczyca, Thomas; Michael, Darryl & Weaver, Stan
Object Type:
Report
System:
The UNT Digital Library
Energy-Aware Routing and Hybrid Synchronization in Sensor Networks
This presentation discusses the research of sensor synchronization, sensor grid routing, and voice over internet protocol (VoIP).
Date:
September 2007
Creator:
Akl, Robert G.
Object Type:
Presentation
System:
The UNT Digital Library
Hybrid Energy-Aware Synchronization Algorithm in Wireless Sensor Networks
This paper discusses a time synchronization scheme for wireless sensor networks that aims to conserve sensor battery power while maintaining network connectivity for as long as possible.
Date:
September 2007
Creator:
Akl, Robert G. & Saravanos, Yanos
Object Type:
Paper
System:
The UNT Digital Library
The Simplest Double Slit: Interference and Entanglement in Double Photoionization of H2
The wave nature of particles is rarely seen in nature. One reason is their very short de Broglie wavelengths in most situations. However, even with wavelengths close to the size of their surroundings, they couple to their environment, e.g. by gravity, Coulomb interaction, or thermal radiation. These couplings shift the phase of the waves, often in an uncontrolled way, hence yielding varying amounts of decoherence i.e. loss of phase integrity. Decoherence is thought to be a main cause of the transition from quantum to classical behavior. How much interaction is necessary and how big an environment is needed to induce the onset of classical behavior? Here we show that a photoelectron and two protons form a minimum particle/slit system, and that a minimum environment can be no more than a single additional electron. We observe interference 'fringes' in the angular distribution of a single electron and the loss of fringe visibility caused by its Coulomb interaction with a second electron. While, at the same time, the correlated momenta of the entangled electron pair continue to exhibit quantum interference.
Date:
September 18, 2007
Creator:
Akoury , D.; Kreidi, K.; Jahnke , T.; Weber, Th.; Staudte , A.; Schoffler, M. et al.
Object Type:
Article
System:
The UNT Digital Library
Oral History Interview with Frank Albert, September 21, 2007
The National Museum of the Pacific War presents an oral interview with Frank Albert. Albert joined the Navy in 1941. Growing up in poverty with 12 siblings, enlisting was a way to ensure three square meals a day and to finally have his own bed. Albert was assigned to the USS Enterprise (CV-6) as a shipfitter, involved in routine maintenance and damage control. As such, he was appreciated by many people and often repaid with alcohol, which he would share with others before stowing the remainder inside the ship’s walls, welding the makeshift cubby shut each time. At Pearl Harbor, he conducted shore patrol and once broke up an altercation involving his own brother. The two of them, along with about 15 other pairs of brothers, worked together on the Enterprise, in the early days. Albert encountered many dangerous events, particularly surviving a weeklong typhoon, and watching from the crow’s nest as a kamikaze approached and blew out the number two elevator. In the aftermath, part of his duties in damage control included administering morphine to the wounded. Albert was discharged shortly before the war ended, having spent four years in the service. For a time thereafter, he suffered from …
Date:
September 21, 2007
Creator:
Albert,Frank
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with Frank Albert, September 21, 2007
The National Museum of the Pacific War presents an oral interview with Frank Albert. Albert joined the Navy in 1941. Growing up in poverty with 12 siblings, enlisting was a way to ensure three square meals a day and to finally have his own bed. Albert was assigned to the USS Enterprise (CV-6) as a shipfitter, involved in routine maintenance and damage control. As such, he was appreciated by many people and often repaid with alcohol, which he would share with others before stowing the remainder inside the ship’s walls, welding the makeshift cubby shut each time. At Pearl Harbor, he conducted shore patrol and once broke up an altercation involving his own brother. The two of them, along with about 15 other pairs of brothers, worked together on the Enterprise, in the early days. Albert encountered many dangerous events, particularly surviving a weeklong typhoon, and watching from the crow’s nest as a kamikaze approached and blew out the number two elevator. In the aftermath, part of his duties in damage control included administering morphine to the wounded. Albert was discharged shortly before the war ended, having spent four years in the service. For a time thereafter, he suffered from …
Date:
September 21, 2007
Creator:
Albert,Frank
Object Type:
Text
System:
The Portal to Texas History
"Bait vehicle" technologies and motor vehicle theft along the southwest border.
In 2005, over 33% of all the vehicles reported stolen in the United States occurred in the four southwestern border states of California, Arizona, New Mexico, and Texas, which all have very high vehicle theft rates in comparison to the national average. This report describes the utilization of 'bait vehicles' and associated technologies in the context of motor vehicle theft along the southwest border of the U.S. More than 100 bait vehicles are estimated to be in use by individual agencies and auto theft task forces in the southwestern border states. The communications, tracking, mapping, and remote control technologies associated with bait vehicles provide law enforcement with an effective tool to obtain arrests in vehicle theft 'hot spots'. Recorded audio and video from inside the vehicle expedite judicial proceedings as offenders rarely contest the evidence presented. At the same time, law enforcement is very interested in upgrading bait vehicle technology through the use of live streaming video for enhanced officer safety and improved situational awareness. Bait vehicle effectiveness could be enhanced by dynamic analysis of motor theft trends through exploitation of geospatial, timeline, and other analytical tools to better inform very near-term operational decisions, including the selection of particular vehicle …
Date:
September 1, 2007
Creator:
Aldridge, Chris D.
Object Type:
Report
System:
The UNT Digital Library
Timpson & Tenaha News (Timpson, Tex.), Vol. 25, No. 36, Ed. 1 Thursday, September 6, 2007
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
September 6, 2007
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Timpson & Tenaha News (Timpson, Tex.), Vol. 25, No. 37, Ed. 1 Thursday, September 13, 2007
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
September 13, 2007
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Timpson & Tenaha News (Timpson, Tex.), Vol. 25, No. 38, Ed. 1 Thursday, September 20, 2007
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
September 20, 2007
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Timpson & Tenaha News (Timpson, Tex.), Vol. 25, No. 39, Ed. 1 Thursday, September 27, 2007
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
September 27, 2007
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History