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AMAP Assessment 2015: Methane as an Arctic Climate Forcer
This assessment report presents the results of the 2015 AMAP Assessment of Methane as an Arctic climate forcer. This is the first AMAP assessment dealing with this issues and complements a second assessment of black carbon and tropospheric ozone as Arctic climate forcers.
Date:
2005
Creator:
Arctic Monitoring and Assessment Programme
Object Type:
Report
System:
The UNT Digital Library
Amended Texas State Plan Pursuant to the Help America Vote Act of 2002 (HAVA)
This report describes HAVA Requirement, State of Texas Current Status and Action Planned
Date:
January 2005
Creator:
Texas. Secretary of State.
Object Type:
Legal Document
System:
The Portal to Texas History
Amplitude Analysis of the Decay $D_s^+ \to \pi^+ \pi^- \pi^+$ in the Experiment E831/FOCUS
We present in this thesis the Dalitz Plot analysis of the D{sub s}{sup +} {yields} {pi}{sup +}{pi}{sup -}{pi}{sup +} decay, with the data of the E831/FOCUS, that took data in 1996 and 1997. The masses and widhts of f{sub 0}(980) and f{sub 0}(1370) are free parametres of the fit on Dalitz Plot, objectiving to study in detail these resonances. After this analysis we present the Spectator Model study on the S wave in this decay. For this study we used the formalism developed by M. Svec [2] for scattering. We present the comparison between the Isobar Model, frequently used in Dalitz Plot analysis, and this formalism.
Date:
January 1, 2005
Creator:
Schilithz, Anderson Correa
Object Type:
Report
System:
The UNT Digital Library
Analysis of Devonian Black Shales in Kentucky for Potential Carbon Dioxide Sequestration and Enhanced Natural Gas Production Quarterly Report: July-Septmeber 2004
Devonian gas shales underlie approximately two-thirds of Kentucky. In the shale, natural gas is adsorbed on clay and kerogen surfaces. This is analogous to methane storage in coal beds, where CO{sub 2} is preferentially adsorbed, displacing methane. Black shales may similarly desorb methane in the presence of CO{sub 2}. Drill cuttings from the Kentucky Geological Survey Well Sample and Core Library were sampled to determine CO{sub 2} and CH{sub 4} adsorption isotherms. Sidewall core samples were acquired to investigate CO{sub 2} displacement of methane. An elemental capture spectroscopy log was acquired to investigate possible correlations between adsorption capacity and mineralogy. Average random vitrinite reflectance data range from 0.78 to 1.59 (upper oil to wet gas and condensate hydrocarbon maturity range). Total organic content determined from acid-washed samples ranges from 0.69 to 14 percent. CO{sub 2} adsorption capacities at 400 psi range from a low of 14 scf/ton in less organic-rich zones to more than 136 scf/ton. Initial estimates based on these data indicate a sequestration capacity of 5.3 billion tons of CO{sub 2} in the Lower Huron Member of the Ohio Shale of eastern Kentucky and as much as 28 billion tons total in the deeper and thicker parts of …
Date:
January 1, 2005
Creator:
Nuttall, Brandon C.
Object Type:
Report
System:
The UNT Digital Library
Analysis of eddy current distributions in the CMS magnet yoke during the solenoid discharge
Flux loops have been installed on selected segments of the magnetic flux return yoke of the 4 T superconducting coil of the Compact Muon Solenoid (CMS) detector under construction at CERN. Voltages induced in the loops during discharge of the solenoid will be sampled on-line during the entire discharge and integrated off-line to provide a measurement of the initial magnetic flux density in steel at the maximum field to an accuracy of a few percent. Although the discharge of the solenoid is rather slow (190 s time constant), the influence of eddy currents induced in the yoke elements should be estimated. The calculation of eddy currents is performed with Vector Fields program ELEKTRA. The results of calculations are reported.
Date:
January 1, 2005
Creator:
Klyukhin, V. I.; Campi, D.; Cure, B.; Gaddi, A.; Gerwig, H.; Grillet, J. P. et al.
Object Type:
Article
System:
The UNT Digital Library
Analysis of the habitat of Henslow's sparrows and Grasshopper sparrows compared to random grassland areas
Henslow's Sparrows are endangered prairie birds, and Grasshopper Sparrows are considered rare prairie birds. Both of these birds were abundant in Illinois, but their populations have been declining due to loss of the grasslands. This begins an ongoing study of the birds habitat so Fermilab can develop a land management plan for the Henslow's and Grasshoppers. The Henslow's were found at ten sites and Grasshoppers at eight sites. Once the birds were located, the vegetation at their sites was studied. Measurements of the maximum plant height, average plant height, and duff height were taken and estimates of the percent of grass, forbs, duff, and bare ground were recorded for each square meter studied. The same measurements were taken at ten random grassland sites on Fermilab property. Several t-tests were performed on the data, and it was found that both Henslow's Sparrows and Grasshopper Sparrows preferred areas with a larger percentage of grass than random areas. Henslow's also preferred areas with less bare ground than random areas, while Grasshoppers preferred areas with more bare ground than random areas. In addition, Grasshopper Sparrows preferred a lower percentage of forbs than was found in random areas and a shorter average plant height than …
Date:
January 1, 2005
Creator:
Maier, Kristen; Walton, Rod & Kasper, Peter
Object Type:
Article
System:
The UNT Digital Library
Analytical Methodologies for Detection of Gamma-Valerolactone, Delta-Valerolactone, Acephate and Azinphos Methyl and Their Associated Metabolites in Complex Biological Matrices
Non-invasive biomonitoring for chemicals of interest in law enforcement and similar monitoring of pesticides, together with their metabolites, can not only save money but can lead to faster medical attention for individuals exposed to these chemicals. This study describes methods developed for the analysis of gamma-valerolactone (GVL), delta-valerolactone (DVL), acephate, and azinphos methyl in saliva and serum. Liquid chromatography/mass spectrometry (LC/MS) operated in the negative and positive ion mode and gas chromatography/mass spectrometry (GC/MS) were used to analyze GVL and DVL. Although both analytical techniques worked well, lower detection limits were obtained with GC/MS. The lactones and their corresponding sodium salts were spiked into both saliva and serum. The lactones were isolated from saliva or serum using newly developed extraction techniques and then subsequently analyzed using GC/MS. The sodium salts of the lactones are nonvolatile and require derivatization prior to analysis by this method. N-methyl-N-(t-butyldimethylsilyl)-trifluoroacetamide (MTBSTFA) was ultimately selected as the reagent for derivatization because the acidic conditions required for reactions with diazomethane caused the salts to undergo intramolecular cyclization to the corresponding lactones. In vitro studies were conducted using rat liver microsomes to determine other metabolites associated with these compounds. Azinphos methyl and acephate are classified as organophosphate pesticides, …
Date:
January 1, 2005
Creator:
Zink, Erica; Clark, Ryan; Grant, Karen; Campbell, James & Hoppe, Erik
Object Type:
Article
System:
The UNT Digital Library
Annual Birding & Nature Festivals of Texas: 2005-2006
Annual guide listing festivals in the state of Texas that are related to birds or other wildlife, providing descriptions, dates, and contact information.
Date:
January 2005
Creator:
Texas. Parks and Wildlife Department.
Object Type:
Pamphlet
System:
The Portal to Texas History
Annual Birding & Nature Festivals of Texas: 2005-2006
Annual guide listing festivals in the state of Texas that are related to birds or other wildlife, providing descriptions, dates, and contact information.
Date:
January 2005
Creator:
Texas. Parks and Wildlife Department.
Object Type:
Pamphlet
System:
The Portal to Texas History
Application of Combinatorial Tools for Solar Cell Improvement -- New High Performance Transparent Conducting Oxides
Transparent conducting oxides (TCOs) can serve a variety of important functions in thin film photovoltaics such as transparent electrical contacts, antireflection coatings and chemical barriers. Two areas of particular interest are TCOs that can be deposited at low temperatures and TCOs with high carrier mobilities. We have employed combinatorial high-throughput approaches to investigate both these areas. Conductivities of s = 2500 W-1-cm-1 have been obtained for In-Zn-O (IZO) films deposited at 100 C and s > 5000 W-1-cm-1 for In-Ti-O (ITiO) and In-Mo-O (IMO) films deposited at 550 C. The highest mobility obtained was 83 cm2/V-sec for ITiO deposited at 550 C.
Date:
January 1, 2005
Creator:
Perkins, J.; Taylor, M.; van Hest, M.; Teplin, C.; Alleman, J.; Dabney, M. et al.
Object Type:
Article
System:
The UNT Digital Library
Application of deuteron-deuteron (d-d) fusion neutrons to 40ar/39/ar geochronology
This report talks about Application of deuteron-deuteron (d-d) fusion neutrons to 40ar/39/ar geochronology
Date:
January 1, 2005
Creator:
Renne, P.; Knight, K. B.; Nomade, S.; Leung, K. N. & Lou, T. P.
Object Type:
Article
System:
The UNT Digital Library
Application of independent component analysis to Fermilab Booster
Autocorrelation is applied to analyze sets of finite-sampling data such as the turn-by-turn beam position monitor (BPM) data in an accelerator. This method of data analysis, called the independent component analysis (ICA), is shown to be a powerful beam diagnosis tool for being able to decompose sampled signals into its underlying source signals. They find that the ICA has an advantage over the principle component analysis (PCA) used in the model-independent analysis (MIA) in isolating independent modes. The tolerance of the ICA method to noise in the BPM system is systematically studied. The ICA is applied to analyze the complicated beam motion in a rapid-cycling booster synchrotron at the Fermilab. Difficulties and limitations of the ICA method are also discussed.
Date:
January 1, 2005
Creator:
Huang, X. B.; Lee, S. Y.; Prebys, E. & Tomlin, R.
Object Type:
Article
System:
The UNT Digital Library
Applications of mineral carbonation to geological sequestration of CO2
Geological sequestration of CO2 is a promising near-term sequestration methodology. However, migration of the CO2 beyond the natural reservoir seals could become problematic, thus the identification of means to enhance the natural seals could prove beneficial. Injection of a mineral reactant slurry could provide a means to enhance the natural reservoir seals by supplying the necessary cations for precipitation of mineral carbonates. The subject study evaluates the merit of several mineral slurry injection strategies by conduct of a series of laboratory-scale CO2 flood tests on whole core samples of the Mt. Simon sandstone from the Illinois Basin.
Date:
January 1, 2005
Creator:
O'Connor, William K. & Rush, G.E.
Object Type:
Article
System:
The UNT Digital Library
Archaeological Survey at Trophy Club, Texas
Archaeological survey results for current and proposed pad sites in Denton County, Texas.
Date:
2005
Creator:
AR Consultants
Object Type:
Report
System:
The Portal to Texas History
An Archaeological Survey Within the Proposed Thompson Springs Park, Fairview, Texas
Archaeological survey results regarding proposed Thompson Springs Park in Collin County in terms of finding archaeological sites or cultural materials.
Date:
2005
Creator:
AR Consultants
Object Type:
Report
System:
The Portal to Texas History
Arsenic Sulfide Nanowire Formation on Fused Quartz Surfaces
Arsenic sulfide (AsxSy) nanowires were synthesized by an evaporation-condensation process in evacuated fused quartz ampoules. During the deposition process, a thin, colored film of AsxSy was deposited along the upper, cooler portion of the ampoule. The ampoule was sectioned and the deposited film analyzed using scanning electron microscopy (SEM) to characterize and semi-quantitatively evaluate the microstructural features of the deposited film. A variety of microstructures were observed that ranged from a continuous thin film (warmer portion of the ampoule), to isolated micron- and nano-scale droplets (in the intermediate portion), as well as nanowires (colder portion of the ampoule). Experiments were conducted to evaluate the effects of ampoule cleaning methods (e.g. modify surface chemistry) and quantity of source material on nanowire formation. The evolution of these microstructures in the thin film was determined to be a function of initial pressure, substrate temperature, substrate surface treatment, and initial volume of As2S3 glass. In a set of two experiments where the initial pressure, substrate thermal gradient, and surface treatment were the same, the initial quantity of As2S3 glass per internal ampoule volume was doubled from one test to the other. The results showed that AsxSy nanowires were only formed in the test with …
Date:
January 1, 2005
Creator:
Olmstead, J.; Riley, B. J.; Johnson, B. R. & Sundaram, S. K.
Object Type:
Article
System:
The UNT Digital Library
ASM News Volume 71 Number 9, 2005
Genetic exchanges among prokaryotes, formerly considered only a marginal phenomenon, increasingly are being viewed as profoundly affecting evolution. Indeed, some researchers argue for utterly revamping our concept of microbial speciation and phylogeny by replacing the traditional ''tree'' with a newer ''net'' to account for these horizontal transfers of genes. This conceptual ferment is occurring while molecular biologists reveal how horizontal gene transfers occur even as microbes protect the integrity of their genomes. Other studies reveal the number and diversity and abundance of genetic elements that mediate horizontal gene transfers (HGTs) or facilitate genome rearrangements, deletions, and insertions. Taken together, this information suggests that microbial communities collectively possess a dynamic gene pool, where novel genetic combinations act as a driving force in genomic innovation, compensating individual microbial species for their inability to reproduce sexually. These microbial genomic dynamics can present both environmental threats and promise to humans. One major threat, for example, comes from the spread of antibiotic resistance and virulence genes among pathogenic microbes. Another less-documented issue involves transgenic plants and animals, whose uses are being restricted because of concerns that genes may be transferred to untargeted organisms where they might cause harm. A possible benefit from HGT comes from …
Date:
January 1, 2005
Creator:
Smets, Tamar Barkay and Barth F.
Object Type:
Article
System:
The UNT Digital Library
Aspects of the Coriolis Interaction in U235
We have performed three separate experiments at LBNL's 88-Inch Cyclotron over a period of several years in which {sup 235}U (thick target) was Coulomb-excited. It involved stand-alone experiments with Gammasphere and with the 8PI Spectrometer using {sup 136}Xe beams at 720 MeV, and a CHICO-Gammasphere experiment with an {sup 40}Ar beam at 180 MeV. In addition to extending the known negative-parity bands to high spin, we have assigned levels in some seven positive-parity bands which are in some cases (e.g. [631]1/2, [624]7/2 and [622]5/2) strongly populated by E3 excitation. The CHICO data has been analyzed to extract E2 and E3 matrix elements from the observed yields. Additionally, many E1 and M1 matrix elements could be extracted from the {gamma}-ray branching ratios.
Date:
January 1, 2005
Creator:
Ward, D.; Clark, R. M.; Cromaz, M.; Deleplanque, M. A.; Diamond, R. M.; Fallon, P. et al.
Object Type:
Article
System:
The UNT Digital Library
Assessing the Potential for Renewable Energy on National Forest System Lands
This technical report and CD for the U.S. Department of Agriculture, Forest Service (USFS), evaluates the potential for renewable energy resource development on National Forest System (NFS) lands. USFS can use the report findings to consider potential for development of solar and wind energy resources on NFS lands, in land management decisions. The Geographical Information System (GIS) based analysis resulted in the following findings: (1) Ninety-nine National Forest Units have high potential for power production from one or more of these solar and wind energy sources; and (2) Twenty National Forest Units in nine states have high potential for power production from two or more of these solar and wind energy sources.
Date:
January 1, 2005
Creator:
unknown
Object Type:
Book
System:
The UNT Digital Library
Assessment of disinfectants in explosive destruction system for biological agent destruction : LDRD final report FY04.
Treatment systems that can neutralize biological agents are needed to mitigate risks from novel and legacy biohazards. Tests with Bacillus thuringiensis and Bacillus steurothemophilus spores were performed in a 190-liter, 1-112 lb TNT equivalent rated Explosive Destruction System (EDS) system to evaluate its capability to treat and destroy biological agents. Five tests were conducted using three different agents to kill the spores. The EDS was operated in steam autoclave, gas fumigation and liquid decontamination modes. The first three tests used EDS as an autoclave, which uses pressurized steam to kill the spores. Autoclaving was performed at 130-140 deg C for up to 2-hours. Tests with chlorine dioxide at 750 ppm concentration for 1 hour and 10% (vol) aqueous chlorine bleach solution for 1 hour were also performed. All tests resulted in complete neutralization of the bacterial spores based on no bacterial growth in post-treatment incubations. Explosively opening a glass container to expose the bacterial spores for treatment with steam was demonstrated and could easily be done for chlorine dioxide gas or liquid bleach.
Date:
January 1, 2005
Creator:
Simmons, Blake Alexander; Didlake, John E. Jr.; Bradshaw, Robert W.; Crooker, Paul J. & Buffleben, George M.
Object Type:
Report
System:
The UNT Digital Library
Atmospheric Emitted Radiance Interferometer (AERI) Handbook
The atmospheric emitted radiance interferometer (AERI) measures the absolute infrared (IR) spectral radiance (watts per square meter per steradian per wavenumber) of the sky directly above the instrument. The spectral measurement range of the instrument is 3300 to 520 wavenumbers (cm-1) or 3-19.2 microns for the normal-range instruments and 3300 to 400 cm-1 or 3-25 microns, for the extended-range polar instruments. Spectral resolution is 1.0 cm-1. Instrument field-of-view is 1.3 degrees. A calibrated sky radiance spectrum is produced every 8 minutes in normal mode and every minute in rapid sampling mode. The actual sample scan time is 20-30 sec in rapid sampling mode with periodic gaps when the instrument is looking at the blackbodies. Rapid sampling will become available in all AERIs. Rapid sampling time will eventually be reduced to data every 20 seconds. The AERI data can be used for 1) evaluating line-by-line radiative transport codes, 2) detecting/quantifying cloud effects on ground-based measurements of infrared spectral radiance (and hence is valuable for cloud property retrievals), and 3) calculating vertical atmospheric profiles of temperature and water vapor and the detection of trace gases.
Date:
January 1, 2005
Creator:
Demirgian, J. & Dedecker, R.
Object Type:
Report
System:
The UNT Digital Library
An Audit Report on Local Mental Health and Mental Retardation Authorities' Progress in Complying with the Intent of Rider 68
Report of the Texas State Auditor's Office related to local mental health and mental retardation authorities' (local authorities) progress toward maximizing funds available to provide services as intended by Rider 68 of the General Appropriations Act.
Date:
January 2005
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History
An Audit Report on Selected Fiscal Year 2004 Operations of the Board of Professional Engineers: A Self-Directed Semi-Independent Agency
Report of the Texas State Auditor's Office related to verifying: the accuracy of certain key financial statement balances on the Board of Professional Engineers' (Board) fiscal year 2004 annual financial report and the effectiveness of key financial controls that produce that data; whether the Board has taken corrective action to adequately address the issues regarding the accuracy of its performance measures identified in a prior audit; and the Board's compliance with selected sections of the Self-Directed Semi-Independent Agency Project Act.
Date:
January 2005
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History
An Audit Report on The Health and Human Services Commission's Monitoring of Its Contracted Medicaid Administrator
Report of the Texas State Auditor's Office related to determining whether the Health and Human Services Commission's (Commission) contract monitoring of the administration of the Medicaid program ensures that the administrator is accountable for processing claims accurately and in a timely manner, the administrator is accountable for other contract responsibilities such as provider recruitment, third-party recoveries, and call center support, and administrative expenses charged to the Commission are appropriate.
Date:
January 2005
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History