Serial/Series Title
Fiscal Year 2003
15
OIT Best Practices
15
Fiscal Year 2002
14
Distributed Energy & Electric Reliability Fact Sheets
7
Field Demonstration of a Membrane Process to Separate Nitrogen From Natural Gas Progress Report
7
Clean Cities alternative fuel information series
6
Small Wind Electric Systems Consumers' Guides
6
ARM Facilities Newsletter
5
Alternative Fuel News
5
Analysis of Devonian Black Shales in Kentucky for Potential Carbon Dioxide Sequestration and Enhanced Natural Gas Production Quarterly Report
5
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$1.2 Million in Savings Identified in Akzo Nobel Assessment: Plant-Wide Assessment Summary--Chemicals (Fact Sheet)
Summary of Akzo Nobel's plant-wide assessment to identify energy and cost saving opportunities at the corporation's Surface Chemistry plant in Morris, Illinois.
Date:
August 1, 2003
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
$1.2 Million in Savings Identified in Caraustar Assessment: Plant-Wide Assessment Summary--Forest Products (Fact Sheet)
Summary of Caraustars plant-wide assessment to identify energy and cost saving opportunities at the corporations recycled paperboard mill in Rittman, Ohio.
Date:
August 1, 2003
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
$1.6 Million in Savings Identified in Anchor Assessment: Plant-Wide Assessment Summary--Glass (Fact Sheet)
Summary of Anchor Glass' plant-wide assessment to identify energy and cost saving opportunities at the corporation's facilities in Warner Robins, GA and Jacksonville, FL.
Date:
August 1, 2003
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
$1.6 Million in Savings Identified in Augusta Newsprint Assessment: Plant-Wide Assessment Summary--Forest Products (Fact Sheet)
Augusta Newsprint and its partners conducted a systematic plant-wide assessment (PWA) to identify energy- and cost-saving opportunities at the company's plant in Augusta, Georgia. The assessment team identified$1.6 million in potential annual savings.
Date:
August 1, 2003
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
2.5 MHz feedforward beam loading compensation in the Fermilab Main Injector
There are five 2.5 MHz ferrite cavities (h = 28) in the Main Injector with an R/Q of 500 that are presently used for coalescing for the Tevatron. For use with the Fermilab Recycler, feedforward (FF) beam loading compensation (BLC) is required on these cavities because they will be required to operate at a net of 2 kV. Under current Recycler beam conditions, the beam-induced voltage is of this order. Recently a system using a digital bucket delay module operating at 53 MHz (h = 588) was used to produce a one-turn-delay feedforward signal. This signal was then combined with the low level RF signal to the 2.5 MHz cavities to cancel the beam induced voltage. During current operation they have shown consistently to operate with over a 20 dB reduction in beam loading.
Date:
May 19, 2003
Creator:
Dey, Joseph E.; Kourbanis, Ioanis & Steimel, James
Object Type:
Article
System:
The UNT Digital Library
$2.9 Million in Savings Identified in Georgia-Pacific Assessment: Plant-Wide Assessment Study--Forest Products (Fact Sheet)
Summary of Georgia-Pacific Corporation's plant-wide assessment to identify energy and cost saving opportunities at the corporation's paper mill in Palatka, Florida.
Date:
August 1, 2003
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
2 MW upgrade of the Fermilab Main Injector
In January 2002, the Fermilab Director initiated a design study for a high average power, modest energy proton facility. An intensity upgrade to Fermilab's 120-GeV Main Injector (MI) represents an attractive concept for such a facility, which would leverage existing beam lines and experimental areas and would greatly enhance physics opportunities at Fermilab and in the U.S. With a Proton Driver replacing the present Booster, the beam intensity of the MI is expected to be increased by a factor of five. Accompanied by a shorter cycle, the beam power would reach 2 MW. This would make the MI a more powerful machine than the SNS or the J-PARC. Moreover, the high beam energy (120 GeV) and tunable energy range (8-120 GeV) would make it a unique high power proton facility. The upgrade study has been completed and published. This paper gives a summary report.
Date:
June 4, 2003
Creator:
Chou, Weiren
Object Type:
Article
System:
The UNT Digital Library
2-pi Photoproduction from CLAS and CB-ELSA - The Search for Missing Resonances
2-pi-photoproduction is one of the promising reactions to search for baryon resonances that have been predicted but have not yet been observed. The gamma-rho --> rho-pi{sup 0}-pi{sup 0}(CB-ELSA) and the gamma-rho --> rho-pi{sup +}-pi{sup -} (CLAS) data show interesting resonance structures. A partial wave analysis (PWA) has to be done to determine which baryon resonances contribute what their quantum numbers and their relative couplings to the different accessible rho-2-pi-channels and to the photon are. First preliminary PWA-results on the lowest energy rho-pi{sup 0}-pi{sup 0} data (sq rt s<1.8 GeV)look very promising. From an extension of this analysis to higher energies combining the rho-pi{sup 0}-pi{sup 0} and the rho-pi{sup +}-pi{sup -}-data, one can expect; interesting results on resonances decaying into Delta-pi, N-rho, N(pi-pi)s, N*-pi, and Delta*-pi.
Date:
October 1, 2003
Creator:
Thoma, Ulrike
Object Type:
Article
System:
The UNT Digital Library
$3.5 Million in Savings Identified in Appleton Assessment: Plant-Wide Assessment Summary--Forest Products (Fact Sheet)
Summary of Appleton Paper, Inc.'s plant-wide assessment to identify energy and cost saving opportunities at the corporation's paper mill in West Carrollton, Ohio.
Date:
August 1, 2003
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
3-D Force-balanced Magnetospheric Configurations
The knowledge of plasma pressure is essential for many physics applications in the magnetosphere, such as computing magnetospheric currents and deriving magnetosphere-ionosphere coupling. A thorough knowledge of the 3-D pressure distribution has however eluded the community, as most in-situ pressure observations are either in the ionosphere or the equatorial region of the magnetosphere. With the assumption of pressure isotropy there have been attempts to obtain the pressure at different locations by either (a) mapping observed data (e.g., in the ionosphere) along the field lines of an empirical magnetospheric field model or (b) computing a pressure profile in the equatorial plane (in 2-D) or along the Sun-Earth axis (in 1-D) that is in force balance with the magnetic stresses of an empirical model. However, the pressure distributions obtained through these methods are not in force balance with the empirical magnetic field at all locations. In order to find a global 3-D plasma pressure distribution in force balance with the magnetospheric magnetic field, we have developed the MAG-3D code, that solves the 3-D force balance equation J x B = (upside-down delta) P computationally. Our calculation is performed in a flux coordinate system in which the magnetic field is expressed in terms …
Date:
February 10, 2003
Creator:
Zaharia, Sorin; Cheng, C. Z. & Maezawa, K.
Object Type:
Report
System:
The UNT Digital Library
3-D full waveform inversion of seismic data; Part I. Theory
Full waveform inversion of seismic data is a challenging subject partly because of the lack of precise knowledge of the source. Since currently available approaches involve some form of approximations to the source, inversion results are subject to the quality and the choice of the source information used. A new full waveform inversion scheme has been introduced (Lee and Kim, 2003) using normalized wavefield for simple two-dimensional (2-D) scalar problems. The method does not require source information, so potential inversion errors due to source estimation may be eliminated. A gather of seismic traces is first Fourier-transformed into the frequency domain and a normalized wavefield is obtained for each trace in the frequency domain. Normalization is done with respect to the frequency response of a reference trace selected from the gather, so the complex-valued normalized wavefield is source-independent and dimensionless. The inversion algorithm minimizes misfits between measured normalized wavefield and numerically computed normalized wavefield. In this paper the full waveform inversion is extended to three-dimensional (3-D) problems.
Date:
May 12, 2003
Creator:
Lee, Ki Ha
Object Type:
Article
System:
The UNT Digital Library
3-D Seismic Methods for Geothermal Reservoir Exploration and Assessment--Summary
A wide variety of seismic methods covering the spectrum from DC to kilohertz have been employed at one time or the other in geothermal environments. The reasons have varied from exploration for a heat source to attempting to find individual fractures producing hot fluids. For the purposes here we will assume that overall objective of seismic imaging is for siting wells for successful location of permeable pathways (often fracture permeability) that are controlling flow and transport in naturally fractured reservoirs. The application could be for exploration of new resources or for in-fill/step-out drilling in existing fields. In most geothermal environments the challenge has been to separate the ''background'' natural complexity and heterogeneity of the matrix from the fracture/fault heterogeneity controlling the fluid flow. Ideally one not only wants to find the fractures, but the fractures that are controlling the flow of the fluids. Evaluated in this work is current state-of-the-art surface (seismic reflection) and borehole seismic methods (Vertical Seismic Profiling (VSP), Crosswell and Single Well) to locate and quantify geothermal reservoir characteristics. The focus is on active methods; the assumption being that accuracy is needed for successful well siting. Passive methods are useful for exploration and detailed monitoring for in-fill …
Date:
July 14, 2003
Creator:
Majer, E. L.
Object Type:
Report
System:
The UNT Digital Library
A 3-Dimensional discrete fracture network generator to examine fracture-matrix interaction using TOUGH2
Water fluxes in unsaturated, fractured rock involve the physical processes occurring at fracture-matrix interfaces within fracture networks. Modeling these water fluxes using a discrete fracture network model is a complicated effort. Existing preprocessors for TOUGH2 are not suitable to generate grids for fracture networks with various orientations and inclinations. There are several 3-D discrete-fracture-network simulators for flow and transport, but most of them do not capture fracture-matrix interaction. We have developed a new 3-D discrete-fracture-network mesh generator, FRACMESH, to provide TOUGH2 with information about the fracture network configuration and fracture-matrix interactions. FRACMESH transforms a discrete fracture network into a 3 dimensional uniform mesh, in which fractures are considered as elements with unique rock material properties and connected to surrounding matrix elements. Using FRACMESH, individual fractures may have uniform or random aperture distributions to consider heterogeneity. Fracture element volumes and interfacial areas are calculated from fracture geometry within individual elements. By using FRACMESH and TOUGH2, fractures with various inclinations and orientations, and fracture-matrix interaction, can be incorporated. In this paper, results of flow and transport simulations in a fractured rock block utilizing FRACMESH are presented.
Date:
April 9, 2003
Creator:
Ito, Kazumasa & Yongkoo, Seol
Object Type:
Article
System:
The UNT Digital Library
$4.1 Million in Savings Identified in Paramount Petroleum Assessment: Plant-Wide Assessment Summary--Petroleum (Fact Sheet)
The Paramount Petroleum Corporation (PPC) and its partners conducted a systematic plant-wide assessment (PWA) to identify energy- and cost-saving opportunities at the company's plant in Paramount, California. The assessment team identified$4.1 million in potential annual savings.
Date:
August 1, 2003
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
''6-Degrees of Freedom'' Single Crystal Plasticity Experiments
A deformation experiment has been developed specifically for the purpose of validation of dislocation dynamics simulations of plastic flow up to strains on the order of 1% [1]. The experiment has been designed so that a compressive uniaxial stress field is essentially super imposed on the test sample, and the crystal is free to deform with 3 orthogonal translation directions, and 3 rotation/tilt axes of freedom and has been given the name ''6-degrees of freedom'' (6DOF) experiment. The rotation, tilt and translation of the crystal are monitored by 5 laser displacement gages and 3 extensometers. Experiments are being performed on high purity Mo single crystals orientated for ''single slip''. All of the experiments are performed in pairs, with one test sample having highly polished surfaces for optical light and AFM slip-trace analyses, and the other having 4 strain gage rosettes mounted on the sides for measurement of the bi-axial surface strains during testing. All of the experimental data is used together to determine the slip activity of the orientated single crystal during deformation. Experimental results on high-purity Mo single crystals are presented. The results of these experiments show that slip behavior is in substantial deviation from the expected ''Schmid'' behavior. …
Date:
May 21, 2003
Creator:
Lassila, D. H.; Florando, J. N.; LeBlanc, M. M.; Arsenlis, T. & Rhee, M.
Object Type:
Article
System:
The UNT Digital Library
An 8-GeV Synchrotron-Based Proton Driver
In January 2002, the Fermilab Director initiated a design study for a high average power, modest energy proton facility. Such a facility is a possible candidate for a construction project in the U.S. starting in the middle of this decade. The key technical element is a new machine, dubbed the ''Proton Driver,'' as a replacement of the present Booster. The study of an 8-GeV synchrotron-based proton driver has been completed and published. This paper will give a summary report, including machine layout and performance, optics, beam dynamics issues, technical systems design, civil construction, cost estimate and schedule.
Date:
June 4, 2003
Creator:
Chou, Weiren
Object Type:
Article
System:
The UNT Digital Library
8-oxoguainine enhances bending of DNA that favors binding of glycosylases
Molecular dynamics (MD) simulations were carried out on the DNA oligonucleotide GGGAACAACTAG:CTAGTTGTTCCC in its native form and with guanine in the central G19:C6 base pair replaced by 8-oxoguanine (8oxoG). A box of explicit water molecules was used for solvation and Na+ counterions were added to neutralize the system. The direction and magnitude of global bending were assessed by a technique used previously to analyze simulations of DNA containing a thymine dimer. The presence of 8oxoG did not greatly affect the magnitude of DNA bending; however, bending into the major groove was significantly more probable when 8oxoG replaced G19. Crystal structures of glycosylases bound to damaged-DNA substrates consistently show a sharp bend into the major groove at the damage site. We conclude that changes in bending dynamics that assist the formation of this kink are a part of the mechanism by which glycosylases of the base excision repair pathway recognize the presence of 8oxoG in DNA.
Date:
April 23, 2003
Creator:
Miller, John H.
Object Type:
Article
System:
The UNT Digital Library
$9.5 Million in Savings Identified Through Inland Assessment: Plant-Wide Assessment Summary--Forest Products (Fact Sheet)
Summary of Inland Box Corporation's plant-wide assessment to identify energy and cost saving opportunities at the corporation's linerboard mill in Rome, Georgia.
Date:
August 1, 2003
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
10 kW SOFC POWER SYSTEM COMMERCIALIZATION
The program is organized into three developmental periods. In Phase 1 the team will develop and demonstrate a proof-of-concept prototype design and develop a manufacturing plan to substantiate potential producibility at a target cost level of $800/kW factory manufacturing cost. Phase 2 will further develop the design and reduce the manufacturing cost to a level of $600 kW. Depending on an assessment of the maturity of the technology at the end of Phase 1, Phase 2 may be structured and supplemented to provide a limited production capability. Finally, in Phase 3, a full Value Package Introduction (VPI) Program will be integrated into the SECA program to develop a mass-producible design at a factory cost of $400/kW with full cross-functional support for unrestricted commercial sales. The path to market for new technology products in the Cummins system involves two processes. The first is called Product Preceding Technology, or PPT. The PPT process provides a methodology for exploring potentially attractive technologies and developing them to the point that they can be reliably scheduled into a new product development program with a manageable risk to the product introduction schedule or product quality. Once a technology has passed the PPT gate, it is available …
Date:
August 1, 2003
Creator:
Norrick, Dan; Palmer, Brad; Romine, Todd; Vesely, Charles; Barringer, Eric; DeBellis, Cris et al.
Object Type:
Report
System:
The UNT Digital Library
A 14.6 Arcsecond Quasar Lens Split by a Massive Dark Matter Halo
Gravitational lensing is a powerful tool to study the distribution of dark matter in the universe. The cold dark matter model of structure formation predicts the existence of quasars gravitationally lensed by concentrations of dark matter so massive that the quasar images would be split by over 7 inches. However, numerous searches for large-separation lensed quasars have been unsuccessful; all of the roughly 70 lensed quasars known to date, such as Q0957+561, have smaller splittings, and can be explained in terms of galaxy scale concentrations of baryonic matter that have undergone dissipative collapse. Here they report the discovery of the first large-separation lensed quasar, SDSS J1004+4112, with a maximum separation of 14.62 inches; at this separation, the lensing object must be dominated by dark matter. While gravitationally lensed galaxies of even large separation are known, large-separation quasars are more useful cosmological probes because of the simplicity of the resulting lens systems. The discovery in their current quasar sample is fully consistent with the theoretical expectations based on the cold dark matter model.
Date:
December 4, 2003
Creator:
Inada, N.; Oguri, M.; Pindor, B.; Hennawi, J.; Chiu, K.; Zheng, W. et al.
Object Type:
Article
System:
The UNT Digital Library
16-APR-03 Final Release of ENDF/B-V for use with LLNL Codes
The new data files were prepared in two steps. First, the ENDF/B-V database was translated to an ENDL-format ascii database. The ENDL ascii format is a point-wise tabular storage scheme where intermediate values are extracted via interpolation. Sufficient point-wise information was generated in the translation to insure an extraction tolerance of 0.1% for most of the data. The only exception is along the incident neutron energy axis of the outgoing particle energy probability density function where a 0.5% tolerance was maintained. Second, processed files were generated from the translated database. Since the translated ENDF/B-V data is in ENDL-format, the standard processing codes were used to generate the new processed data files. To the best of our knowledge, these processed data files are accurate representations of the ENDF/B-V database to within the stated tolerances. However, there are several issues that users must be aware of and they are listed in this report.
Date:
April 16, 2003
Creator:
Hill, T S; McNabb, D P; Hedstrom, G W; Beck, B & Hagmann, C A
Object Type:
Report
System:
The UNT Digital Library
20-100 keV K(alpha) X-Ray Source Generation by Short Pulse High Intensity Lasers
We are studying the feasibility of utilizing K{alpha} x-ray sources in the range of 20 to 100 keV as a backlighters for imaging various stages of implosions and high areal density planar samples driven by the NIF laser facility. The hard x-ray K{alpha} sources are created by relativistic electron plasma interactions in the target material after a radiation by short pulse high intensity lasers. In order to understand K{alpha} source characteristics such as production efficiency and brightness as a function of laser parameters, we have performed experiments using the 10 J, 100 fs JanUSP laser. We utilized single-photon counting spectroscopy and x-ray imaging diagnostics to characterize the K{alpha} source. We find that the K{alpha} conversion efficiency from the laser energy is {approx} 3 x 10{sup -4}.
Date:
August 22, 2003
Creator:
Park, H. S.; Koch, J. A.; Landen, O. L.; Phillips, T. W. & Goldsack, T.
Object Type:
Article
System:
The UNT Digital Library
21-PWR Waste Package Side and End Impacts
The objective of this calculation is to determine the structural response of a 21-Pressurized Water Reactor (PWR) spent nuclear fuel waste package impacting an unyielding surface. A range of initial velocities and initial angles between the waste package and the unyielding surface is studied. The scope of this calculation is limited to estimating the area of the outer shell (OS) where the residual stress exceeds a given limit (hereafter ''damaged area''). The stress limit is defined as a fraction of the yield strength of the OS material, Alloy 22 (SB-575 N06022), at the appropriate temperature. The design of the 21-PWR waste package used in this calculation is that defined in Reference 8. However, a value of 4 mm was used for the gap between the inner shell and the OS, and the thickness of the OS was reduced by 2 mm. The sketch in Attachment I provides additional information not included in Reference 8. All obtained results are valid for this design only. This calculation is associated with the waste package design and was performed by the Specialty Analyses and Waste Package Design Section. The waste package (i.e. uncanistered spent nuclear fuel disposal container) is classified as Quality Level 1.
Date:
February 27, 2003
Creator:
Delabrosse, V.
Object Type:
Report
System:
The UNT Digital Library
24-Channel Geophone Array for Horizontal or Vertical Boreholes: Final Report
Improved ground-imaging capabilities have enormous potential to increase energy, environmental, and economic benefits by improving exploration accuracy and reducing energy consumption during the mining cycle. Seismic tomography has been used successfully to monitor and evaluate geologic conditions ahead of a mining face. A primary limitation to existing seismic tomography, however, is the placement of sensors. The goal of this project is to develop an array of 24 seismic sensors capable of being mounted in either a vertical or horizontal borehole. Development of this technology reduces energy usage in excavation, transportation, ventilation, and processing phases of the mining operation because less waste is mined and the mining cycle suffers fewer interruptions. This new technology benefits all types of mines, including metal/nonmetal, coal, and quarrying. The primary research tasks focused on sensor placement method, sensor housing and clamping design, and cabling and connector selection. An initial design is described in the report. Following assembly, a prototype was tested in the laboratory as well as at a surface stone quarry. Data analysis and tool performance were used for subsequent design modifications. A final design is described, of which several components are available for patent application. Industry partners have shown clear support for this …
Date:
October 24, 2003
Creator:
Westman, Erik C.
Object Type:
Report
System:
The UNT Digital Library