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[Abilene City Council Minutes: 1997]
Ledger containing minutes of the City Council in Abilene, Texas documenting the group's discussions and activities from January 9, 1997 to December 18, 1997. A blank index mean to contain names is included at the front.
Date:
1997-01-09/1997-12-18
Creator:
Abilene (Tex.)
Object Type:
Book
System:
The Portal to Texas History
The migration and entrapment of DNAPLs in physically and chemically heterogeneous porous media. Annual progress report, September 15, 1996--August 25, 1997
'The overall objective of this research is to investigate the influence of coupled physical and chemical heterogeneity on the migration and entrapment of DNAPLs in the saturated zone. This research includes laboratory and numerical investigations for a matrix of fluid and solid properties encompassing a range of wettability characteristics. Specific objectives include: (1) quantification of medium wettability and interfacial tensions; (2) determination of hydraulic property relations; (3) two-dimensional infiltration experiments; (4) modification of a continuum based multiphase flow simulator to account for physical heterogeneity, saturation independent and saturation dependent wettability, and concentration dependent wettability and interfacial tension; and (5) utilization of this model to explore the potential influence of coupled physical and chemical heterogeneities on the migration of DNAPLs and the development of innovative remediation schemes. Research conducted during this period was directed primarily towards the accomplishment of goals (1), (2), (4) and (5); specific details are given below. Goal (3) builds upon results from the other objectives and will, therefore, be started in the coming year.'
Date:
January 1, 1997
Creator:
Abriola, L.M. & Demond, A.H.
Object Type:
Report
System:
The UNT Digital Library
Assessment of California reformulated gasoline impact on vehicle fuel economy
Fuel economy data contained in the 1996 California Air Resources Board (CARB) report with respect to the introduction of California Reformulated Gasoline (CaRFG) has been examined and reanalyzed by two additional statistical methodologies. Additional data has also been analyzed by these two statistical approaches. Within the assumptions of the analysis, point estimates for the reduction in fuel economy using CaRFG as compared to conventional, non-reformulated gasoline were 2-4%, with a 95% upper confidence bound of 6%. Substantial variations in fuel economy are routine and inevitable due to additional factors which affect mileage, even if there is no change in fuel reformulation. This additional analysis confirms the conclusion reached by CARB with respect to the impact of CaRFG on fuel economy.
Date:
January 1, 1997
Creator:
Aceves, S., LLNL
Object Type:
Report
System:
The UNT Digital Library
Assessment of California reformulated gasoline impact on vehicle fuel economy
Fuel economy data contained in the 1996 California Air Resources Board (CAROB) report with respect to the introduction of California Reformulated Gasoline (CaRFG) has been examined and reanalyzed by two additional statistical methodologies. Additional data has also been analyzed by these two statistical approaches. Within the assumptions of the analysis, point estimates for the reduction in fuel economy using CaRFG as compared to conventional, non-reformulated gasoline were 2-4 %, with a 95% upper confidence bound of 6 %. Substantial variations in fuel economy are routine and inevitable due to additional factors which affect mileage, even if there is no change in fuel reformulation. This additional analysis confirms the conclusion reached by CAROB with respect to the impact of CaRFG on fuel economy.
Date:
January 1, 1997
Creator:
Aceves, S.; Glaser, R. & Richardson, J.
Object Type:
Report
System:
The UNT Digital Library
Properties of energetic materials: United States Department of Energy (DOE) Accelerated Strategic Computing Initiative (ASCI) strategic alliances
The Accelerated Strategic Computing Initiative (ASCI) program is designed to provide the computational resources which are required to provide a simulation based approach to the Science Based Stockpile Stewardship (SBSS) program. The capability to predict the properties of energetic materials is one of the areas of interest to the US Department of Energy`s (DOE) ASCI program. This capability will support computational assessments of the safety and reliability of systems containing explosives and other energetic materials subjected to normal and abnormal environments. Several research elements related to energetic material properties are described in more detail below. They are: (A) calculation of decomposition rates, (B) molecular potential functions, (C) physical properties and transport coefficients, (D) molecular energization mechanisms, (E) fracture/failure of energetic material crystals, (F) grain-grain and grain- binder interactions, and (G) aging effects in energetic material. These elements have in common the need to develop computational methods that have a strong foundation in basic physical principles. They will generally have to be implemented to run efficiently on advanced parallel computing platforms to achieve sufficient accuracy.
Date:
January 1, 1997
Creator:
Adams, Thomas F.
Object Type:
Report
System:
The UNT Digital Library
A Measurement of the holographic minimum observable beam branching ratio in the Fermilab 15-foot bubble chamber
Holography has been used successfully in combination with conventional optics for the first time in a large cryogenic bubble chamber, the 15-Foot Bubble Chamber at Fermilab, during a physics run. The innovative system combined the reference beam with the object beam, illuminating a conical volume of {approx} 1.4 m{sup 3}. Bubble tracks from neutrino interactions with a width of {approx} 120 {micro}m have been recorded with good contrast. The ratio of intensities of the object light to the reference light striking the film is called the Beam Branching Ratio. We obtained in our experiment an exceedingly small minimum-observable ratio of (0.54 {+-} 0.21) x 10{sup -7}. The technology has the potential for a wide range of applications.
Date:
January 1, 1997
Creator:
Aderholz, M.; Aggarwal, M. M.; Akbari, H.; Allport, P. P.; Badyal, S. K.; Ballagh, H. C. et al.
Object Type:
Article
System:
The UNT Digital Library
Probing polarized parton distributions with meson photoproduction
Polarization asymmetries in photoproduction of high transverse momentum mesons are a flavor sensitive way to measure the polarized quark distributions. the authors calculate the expected asymmetries in several models, and find that the asymmetries are significant and also significantly different from model to model. Suitable data may come as a by-product of deep inelastic experiments to measure g{sub 1} or from dedicated experiments.
Date:
January 1, 1997
Creator:
Afanasev, Andrei; Carlson, Carl E. & Wahlquist, Christian
Object Type:
Article
System:
The UNT Digital Library
Architecture of the Multi-Modal Organizational Research and Production Heterogeneous Network (MORPHnet)
The research and education (R&E) community requires persistent and scaleable network infrastructure to concurrently support production and research applications as well as network research. In the past, the R&E community has relied on supporting parallel network and end-node infrastructures, which can be very expensive and inefficient for network service managers and application programmers. The grand challenge in networking is to provide support for multiple, concurrent, multi-layer views of the network for the applications and the network researchers, and to satisfy the sometimes conflicting requirements of both while ensuring one type of traffic does not adversely affect the other. Internet and telecommunications service providers will also benefit from a multi-modal infrastructure, which can provide smoother transitions to new technologies and allow for testing of these technologies with real user traffic while they are still in the pre-production mode. The authors proposed approach requires the use of as much of the same network and end system infrastructure as possible to reduce the costs needed to support both classes of activities (i.e., production and research). Breaking the infrastructure into segments and objects (e.g., routers, switches, multiplexors, circuits, paths, etc.) gives the capability to dynamically construct and configure the virtual active networks to address …
Date:
January 1, 1997
Creator:
Aiken, R.J.; Carlson, R.A. & Foster, I.T.
Object Type:
Report
System:
The UNT Digital Library
A novel biomarker for beryllium sensitization in humans. 1997 annual progress report
'Overall, this project is designed to identify the beryllium reactive T-cell clones that are proliferating in vivo in individuals sensitized to beryllium. The basic method for identifying such clones is the hprt T-cell mutation assay. The rationale is that in vivo proliferating T-lymphocytes are more likely to undergo hprt mutations and/or be included in hprt mutant fractions of T-cells isolated from peripheral blood. T-lymphocytes isolated as hprt mutants from beryllium sensitized individuals are propagated in vitro and characterized for T-cell receptor (TCR)/3 gene usage patterns and antigen reactivity. Results will be compared with similar characteristics determined for T-cell clones from the same individuals that were developed in vitro from peripheral blood lymphocytes by beryllium stimulation. This research project has several specific aims. Progress for the year 10/1/96 to 9/30/97 is given.'
Date:
January 1, 1997
Creator:
Albertini, R.J.
Object Type:
Report
System:
The UNT Digital Library
The Boerne Star (Boerne, Tex.), Vol. 93, No. 1, Ed. 1 Friday, January 3, 1997
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
January 3, 1997
Creator:
Aldridge, Leon & D'Amico, Rob
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 93, No. 2, Ed. 1 Tuesday, January 7, 1997
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
January 7, 1997
Creator:
Aldridge, Leon & D'Amico, Rob
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 93, No. 3, Ed. 1 Friday, January 10, 1997
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
January 10, 1997
Creator:
Aldridge, Leon & D'Amico, Rob
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 93, No. 4, Ed. 1 Tuesday, January 14, 1997
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
January 14, 1997
Creator:
Aldridge, Leon & D'Amico, Rob
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 93, No. 5, Ed. 1 Friday, January 17, 1997
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
January 17, 1997
Creator:
Aldridge, Leon & D'Amico, Rob
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 93, No. 6, Ed. 1 Tuesday, January 21, 1997
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
January 21, 1997
Creator:
Aldridge, Leon & D'Amico, Rob
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 93, No. 7, Ed. 1 Friday, January 24, 1997
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
January 24, 1997
Creator:
Aldridge, Leon & D'Amico, Rob
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 93, No. 8, Ed. 1 Tuesday, January 28, 1997
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
January 28, 1997
Creator:
Aldridge, Leon & D'Amico, Rob
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 93, No. 9, Ed. 1 Friday, January 31, 1997
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
January 31, 1997
Creator:
Aldridge, Leon & D'Amico, Rob
Object Type:
Newspaper
System:
The Portal to Texas History
Oral History Interview with Ralph O. Robinson, January 17, 1997
Access:
Use of this item is restricted to the UNT Community
Transcript of an interview with Ralph Robinson, a scientist, engineer, and physicist, concerning his role in the development of the proximity fuse in World War II. Robinson discusses his education and technical training, employment with the Office of Scientific Research and Development in 1942, technical aspects of developing proximity fuse, the practical applications of the proximity fuse in the Atlantic, Pacific, and Mediterranean Theaters, and offers comments about the roles of Franklin D. Roosevelt, Harry Hopkins, and Vannevar Bush. Appendix includes photograph of Ralph Robinson.
Date:
January 17, 1997
Creator:
Alexander, William J. & Robinson, Ralph O.
Object Type:
Book
System:
The UNT Digital Library
Detection of gear wear on the 757/767 internal drive generator using higher order spectral analysis and wavelets
The 757/767 internal drive generator (IDG), which provides 400 Hz/120 volt ac power to the aircraft cabin experiences failures due to seizure of the scavenger drive pump and/or axial gears on the main drive shaft of the unit. These generators are an integral part of the aircraft`s engines sitting outboard, inside the engine cowling. The seizure of gears represents a significant loss with gear replacement estimated at $17,000 and unit replacement costs at $250,000. One of the U.S. commercial airline companies engaged Oak Ridge National Laboratory in a brief study to determine if a methodology could be developed to interrogate and diagnose gear wear with the ultimate goal of deploying an instrument for test stand and flight line use. Through a structured analysis it was determined that accelerometers mapped with higher order spectral analysis (HOSA) and/or wavelets could provide an analytic approach and basis for a diagnostic sensor/system capable of assessing IDG gear wear on the aircraft or the test stand.
Date:
January 1, 1997
Creator:
Allgood, G.O.; Van Hoy, B.W. & Ayers, C.W.
Object Type:
Article
System:
The UNT Digital Library
A hybrid hydrologic-geophysical inverse technique for the assessment and monitoring of leachates in the vadose zone. 1997 annual progress report
'It is the objective of this proposed study to develop and field test a new, integrated Hybrid Hydrologic-Geophysical Inverse Technique (HHGIT) for characterization of the vadose zone at contaminated sites. This fundamentally new approach to site characterization and monitoring will provide detailed knowledge about hydrological properties, geological heterogeneity and the extent and movement of contamination. HHGIT combines electrical resistivity tomography (ERT) to geophysically sense a 3D volume, statistical information about fabric of geological formations, and sparse data on moisture and contaminant distributions. Combining these three types of information into a single inversion process will provide much better estimates of spatially varied hydraulic properties and three-dimensional contaminant distributions than could be obtained from interpreting the data types individually. Furthermore, HHGIT will be a geostatistically based estimation technique; the estimates represent conditional mean hydraulic property fields and contaminant distributions. Thus, this method will also quantify the uncertainty of the estimates as well as the estimates themselves. The knowledge of this uncertainty is necessary to determine the likelihood of success of remediation efforts and the risk posed by hazardous materials. Controlled field experiments will be conducted to provide critical data sets for evaluation of these methodologies, for better understanding of mechanisms controlling contaminant …
Date:
January 1, 1997
Creator:
Alumbaugh, D.L.
Object Type:
Report
System:
The UNT Digital Library
Southwest Retort, Volume 50, Number 5, January 1997
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:
January 1997
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Test plan for determining breathing rates in single-shell tanks using tracer gases
This test plan specifies the requirements and conditions for the injection of tracer gases into twelve tanks. Of the twelve tanks only four have been assigned at this time.
Date:
January 27, 1997
Creator:
Andersen, J. A.
Object Type:
Report
System:
The UNT Digital Library
Investigation of Novel Electrode Materials for Electrochemically Based Remediation of High and Low-Level Mixed Wastes in the DOE Complex. 1997 Annual Progress Report
'This work is focused on the preparation of novel electrode materials for the degradation of toxic wastes in the DOE complex. One of the goals of this work is to characterize whether it is possible to use controlled doping of TiO{sub 2} with species such as Nb in order to create new electrode materials that will facilitate the destruction of undesirable organics and inorganics, without light and instead only with an applied potential, in the waste tanks at the DOE sites. In the first part of this project, the authors have therefore spent an extensive amount of effort characterizing, as a baseline, the chemical and electrochemical behavior of TiO{sub 2} itself, so that they can make robust comparisons to the behavior of the Nb-doped systems in subsequent work on this project. The preparation of these electrode films is being performed by Marc Anderson at Wisconsin, who is preparing a number of different stoichiometries, grain sizes, etc. for investigation of their electrochemical properties by the Lewis group at Caltech. First they report on the progress of the electrode preparation work, and then they describe progress on the electrochemical work.'
Date:
January 1, 1997
Creator:
Anderson, M. A. & Lewis, N. S.
Object Type:
Report
System:
The UNT Digital Library