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Health, Safety, and Environmental Screening and Ranking Frameworkfor Geologic CO2 Storage Site Selection

Description: This report describes a screening and ranking framework(SRF) developed to evaluate potential geologic carbon dioxide (CO2)storage sites on the basis of health, safety, and environmental (HSE)risk arising from possible CO2 leakage. The approach is based on theassumption that HSE risk due to CO2 leakage is dependent on three basiccharacteristics of a geologic CO2 storage site: (1) the potential forprimary containment by the target formation, (2) the potential forsecondary containment if the prima… more
Date: March 15, 2006
Creator: Oldenburg, Curtis M.
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Partner: UNT Libraries Government Documents Department
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Uncertainty in the reactive transport model response to analkaline perturbation in a clay formation

Description: The mineral alteration in the concrete barrier and in the clay formation around long-lived intermediate-level radioactive waste in the French deep geological disposal concept is evaluated using numerical modeling. There are concerns that the mineralogical composition of the surrounded clay will not be stable under the high alkaline pore fluid conditions caused by concrete (pH {approx} 12). Conversely, the infiltration of CO{sub 2}-rich groundwater from the clay formation into initially unsatura… more
Date: March 15, 2006
Creator: Burnol, A.; Blanc, P.; Xu, T.; Spycher, N. & Gaucher, E. C.
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Partner: UNT Libraries Government Documents Department
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Comparisons Between Experimental Measurments and Numerical Simulations of Spheromak Formation in SSPX

Description: Data from a recently installed insertable magnetic probe array in the Sustained Spheromak Physics Experiment (SSPX) [E. B. Hooper et al., Nucl. Fusion 39, 863 (1999)] is compared against NIMROD [C. R. Sovinec et al., J. Comp. Phys. 195, 355 (2004)], a full 3D resistive magnetohydrodynamic code that is used to simulate SSPX plasmas. The experiment probe consists of a linear array of chip inductors arranged in clusters that are spaced every 2 cm, and spans the entire machine radius at the flux co… more
Date: March 15, 2006
Creator: Romero-Talam?s, C. A.; Hooper, E. B.; Hill, D. N.; Cohen, B. I.; McLean, H. S.; Wood, R. D. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Taming the Runaway Problem of Inflationary Landscapes

Description: A wide variety of vacua, and their cosmological realization, may provide an explanation for the apparently anthropic choices of some parameters of particle physics and cosmology. If the probability on various parameters is weighted by volume, a flat potential for slow-roll inflation is also naturally understood, since the flatter the potential the larger the volume of the sub-universe. However, such inflationary landscapes have a serious problem, predicting an environment that makes it exponent… more
Date: March 15, 2006
Creator: Hall, Lawrence J.; Watari, Taizan & Yanagida, T. T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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CORROSION OF LEAD SHIELDING IN MODEL 9975 PACKAGE

Description: Experiments were performed to determine the corrosion rate of lead when exposed to off-gas or degradation products of organic materials used in the model 9975 package.[1] The experiments were completed within the framework of a parametric test matrix with variables of organic configuration, temperature, humidity and the effect of durations of exposure on the corrosion of lead in the 9975 package. The room temperature vulcanizing (RTV) sealant was the most corrosive organic species in the testin… more
Date: March 15, 2006
Creator: Subramanian, K
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Detecting estrogenic activity in water samples withestrogen-sensitive yeast cells using spectrophotometry and fluorescencemicroscopy

Description: Environmental estrogens are environmental contaminants that can mimic the biological activities of the female hormone estrogen in the endocrine system, i.e. they act as endocrine disrupters. Several substances are reported to have estrogen-like activity or estrogenic activity. These include steroid hormones, synthetic estrogens (xenoestrogens), environmental pollutants and phytoestrogens (plant estrogens). Using the chromogenic substrate ortho-nitrophenyl-{beta}-D-galactopyranoside (ONPG) we sh… more
Date: March 15, 2006
Creator: Wozei, E.; Holman, H-Y.N.; Hermanowicz, S.W. & S., Borglin
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Proposal for a High-Brightness Pulsed Electron Source

Description: We propose a novel scheme for a high-brightness pulsedelectron source, which has the potential for many useful applications inelectron microscopy, inverse photo-emission, low energy electronscattering experiments, and electron holography. A description of theproposed scheme is presented.
Date: March 15, 2006
Creator: Zolotorev, Max; Commins, Eugene D.; Heifets, Sam & Sannibale,Fernando
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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An Intergrated Hydrogen Production-CO2 Capture Process from Fossil Fuel

Description: The major project objective is to determine the feasibility of using the char from coal and/or biomass pyrolysis, ammonia and CO2 emissions at smokestacks to produce clean hydrogen and a sequestered carbon fertilizer. During this work period, the project plan, design and test schedules were made on the basis of discussion with partner in experimental issues. Installation of pilot scale units was finished and major units tests were fully performed. Modification of the pyrolyzer, reformer and gas… more
Date: March 15, 2006
Creator: Wang, Z. & Bota, K. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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ENHANCEMENT OF STRUCTURAL FOAM MATERIALS BY INCORPORATION OF GASIFIER SLAG

Description: As advanced gasification technology is increasingly adopted as an energy source, disposal of the resulting slag will become a problem. We have shown that gasifier slag can be incorporated into foamed glass, which is currently being manufactured as an abrasive and as an insulating material. The slag we add to foamed glass does not simply act as filler, but improves the mechanical properties of the product. Incorporation of gasifier slag can make foamed glass stronger and more abrasion resistant.
Date: March 15, 2006
Creator: Norton, Olin Perry; Palmer, Ronald A. & Ramsey, W. Gene
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Structural proteomics of minimal organisms: conservation ofprotein fold usage and evolutionary implications

Description: Background: Determining the complete repertoire of proteinstructures for all soluble, globular proteins in a single organism hasbeen one of the major goals of several structural genomics projects inrecent years. Results: We report that this goal has nearly been reachedfor several "minimal organisms"--parasites or symbionts with reducedgenomes--for which over 95 percent of the soluble, globular proteins maynow be assigned folds, overall 3-D backbone structures. We analyze thestructures of these … more
Date: March 15, 2006
Creator: Chandonia, John-Marc & Kim, Sung-Hou
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Compact Superconducting Final Focus Magnet Options for the ILC

Description: The QD0 quadrupole, the final focus magnet closest to the Interaction Point (IP) for the ILC 20 mr crossing angle layout, must provide strong focusing yet be adjustable to accommodate collision energy changes for energy scans and low energy calibration running. It must also be compact to allow disrupted beam and Beamstrahlung coming from the IP to pass outside into an independent instrumented beam line that leads to a high-power beam absorber. In designing QD0 we take advantage of recent BNL ex… more
Date: March 15, 2006
Creator: Parker, B.; Anerella, M.; Escallier, J.; Harrison, M.; He, P.; Jain, A. K. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Main Coast Winds - Final Scientific Report

Description: The Maine Coast Wind Project was developed to investigate the cost-effectiveness of small, distributed wind systems on coastal sites in Maine. The restructuring of Maine's electric grid to support net metering allowed for the installation of small wind installations across the state (up to 100kW). The study performed adds insight to the difficulties of developing cost-effective distributed systems in coastal environments. The technical hurdles encountered with the chosen wind turbine, combined … more
Date: March 15, 2006
Creator: Huckaby, Jason & Lee, Harley
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Cooperative Fault Tolerant Distributed Computing

Description: HARNESS was proposed as a system that combined the best of emerging technologies found in current distributed computing research and commercial products into a very flexible, dynamically adaptable framework that could be used by applications to allow them to evolve and better handle their execution environment. The HARNESS system was designed using the considerable experience from previous projects such as PVM, MPI, IceT and Cumulvs. As such, the system was designed to avoid any of the common p… more
Date: March 15, 2006
Creator: Fagg, Graham E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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EVALUATION OF VADOSE ZONE TREATMENT TECHNOLOGIES TO IMMOBILIZE TECHNETIUM-99

Description: The Hanford Site End State Vision document (DOE/RL-2003-59) states: ''There should be an aggressive plan to develop technology for remediation of the contamination that could get to the groundwater (particularly the technetium [{sup 99}Tc])''. In addition, there is strong support from the public and regulatory agencies for the above statement, with emphasis on investigation of treatment alternatives. In July 2004, PNNL completed a preliminary evaluation of remediation technologies with respect … more
Date: March 15, 2006
Creator: PETERSEN, S.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Material Interface Reconstruction for Monte Carlo Particle Tracking

Description: In this project we implement material interface reconstruction into a large, massively parallel Monte Carlo particle transport code. Here we examine the benefit of resolving a material interface for criticality calculations. Input to the code is a mesh with material and density defined on the mesh. For mesh zones that contain more than one material (mixed zones), the old approximation made in the code is to homogenize the material properties of all the materials in the zone. The neutron mean fr… more
Date: March 15, 2006
Creator: O'Brien, M J
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Considerations on Beam Quality Control in MIT X-Ray FEL

Description: The x-ray FEL at MIT is one example of a design for a new generation linac-based light source. Such a new machine requires very high quality electron beams. Besides the usual requirements on beam parameters such as emittance, energy spread, peak current, there are new challenges emerging in the design studies, e.g., the arrival timing of electron beam must reach precision below tens of femtoseconds level to ensure the laser seed overlaps the desired sections of electron bunch in the multiple-st… more
Date: March 15, 2006
Creator: Wang, D.; Graves, W.; Wang, D.; Zwart, T.; Emma, P.; Wu, J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Heat Deposition in Positron Sources for ILC

Description: In the International Linear Collider (ILC) positron source, multi-GeV electrons or multi-MeV photons impinge on a metal target to produce the needed positrons in the resulting electromagnetic showers. The incoming beam power is hundreds of kilowatts. Various computer programs -- such as FLUKA or MARS -- can calculate how the incoming beam showers in the target and can track the particle showers through the positron source system. Most of the incoming energy ends up as heat in the various positr… more
Date: March 15, 2006
Creator: Bharadwaj, V.; Pitthan, R.; Sheppard, J.; Vincke, H. & Wang, J. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Studies of Room Temperature Accelerator Structures for the ILC Positron Source

Description: There are many challenges in the design of the normal-conducting portion of the ILC positron injector system such as achieving adequate cooling with the high RF and particle loss heating, and sustaining high accelerator gradients during millisecond-long pulses in a strong magnetic field. The proposed design for the positron injector contains both standing-wave and traveling-wave L-band accelerator structures for high RF efficiency, low cost and ease of fabrication. This paper presents results f… more
Date: March 15, 2006
Creator: Wang, J. W.; Adolphsen, C.; Bharadwaj, V.; Bowden, G. B.; Dolgashev, V. A.; Jones, R. M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Revealing the Jet Structure of Grb 030329 With High Resolution Multicolor Photometry

Description: We present multicolor optical observations of the nearby (z = 0.1685) GRB030329 obtained with the same instrumentation over a time period of 6 hours for a total of an unprecedented 475 quasi-simultaneous B V R observations. The achromatic steepening in the optical, which occurs at t {approx} 0.7 days, provides evidence for a dynamic transition of the source, and can be most readily explained by models in which the GRB ejecta are collimated into a jet. Since the current state-of-the-art modeling… more
Date: March 15, 2006
Creator: Gorosabel, Javier; Castro-Tirado, A. J.; Ramirez-Ruiz, E.; Granot, J.; Caon, N.; Cairos, L. M. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Post-Irradiation Properties of Candidate Materials for High-Power Targets

Description: The desire of the high-energy-physics community for more intense secondary particle beams motivates the development of multi-megawatt, pulsed proton sources. The targets needed to produce these secondary particle beams must be sufficiently robust to withstand the intense pressure waves arising from the high peak-energy deposition which an intense pulsed beam will deliver. In addition, the materials used for the targets must continue to perform in a severe radiation environment. The effect of th… more
Date: March 15, 2006
Creator: Kirk, H. G.; Ludewig, H.; Mausner, L. F.; Simos, N.; Thieberger, P.; Hayato, Y. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Smart Energy Management and Control for Fuel Cell Based Micro-Grid Connected Neighborhoods

Description: Fuel cell power generation promises to be an efficient, pollution-free, reliable power source in both large scale and small scale, remote applications. DOE formed the Solid State Energy Conversion Alliance with the intention of breaking one of the last barriers remaining for cost effective fuel cell power generation. The Alliance’s goal is to produce a core solid-state fuel cell module at a cost of no more than $400 per kilowatt and ready for commercial application by 2010. With their inherentl… more
Date: March 15, 2006
Creator: Alam, Dr. Mohammad S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Comparison of Beam-Based Alignment Algorithms for the ILC

Description: The main linac of the International Linear Collider (ILC) requires more sophisticated alignment techniques than those provided by survey alone. Various Beam-Based Alignment (BBA) algorithms have been proposed to achieve the desired low emittance preservation. Dispersion Free Steering, Ballistic Alignment and the Kubo method are compared. Alignment algorithms are also tested in the presence of an Earth-like stray field.
Date: March 15, 2006
Creator: Smith, J.C.; Gibbons, L.; Patterson, J.R.; Rubin, D.L.; /Cornell U., LEPP; Sagan, D. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Pasture Management Strategies for Sequestering Soil Carbon - Final Report

Description: Pasturelands account for 51 of the 212 Mha of privately held grazing land in the USA. Tall fescue is the most important cool-season perennial forage for many beef cattle producers in the humid region of the USA. A fungal endophyte, Neotyphodium coenophialum, infects the majority of tall fescue stands with a mutualistic association. Ergot alkaloids produced by the endophyte have negative impacts on cattle performance. However, there are indications that endophyte infection of tall fescue is a ne… more
Date: March 15, 2006
Creator: Franzluebbers, Alan J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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