Resource Type

Star of the Republic Museum Annual Report: 2003 (open access)

Star of the Republic Museum Annual Report: 2003

Annual report of the Star of the Republic Museum describing goals, activities, and accomplishments during fiscal year 2002-2003.
Date: 2003
Creator: Star of the Republic Museum (Washington, Tex.)
System: The Portal to Texas History
Secondary School Completion and Dropouts in Texas Public Schools: 2001-2002 (open access)

Secondary School Completion and Dropouts in Texas Public Schools: 2001-2002

Annual compilation summarizing data regarding graduates and dropouts in Texas public secondary schools, including historical information and longitudinal analyses, with information about data collection and other related information.
Date: August 2003
Creator: Texas Education Agency. Division of Research and Evaluation.
System: The Portal to Texas History
Secondary School Completion and Dropouts in Texas Public Schools: 2001-2002, Supplemental District Data (open access)

Secondary School Completion and Dropouts in Texas Public Schools: 2001-2002, Supplemental District Data

Supplementary compilation summarizing data regarding graduates and dropouts in Texas public secondary schools broken down by districts (alphabetically) and by various demographic characteristics.
Date: August 2003
Creator: Texas Education Agency. Division of Research and Evaluation.
System: The Portal to Texas History
Secondary School Completion and Dropouts in Texas Public Schools: 2001-2002, District and Campus Listings (open access)

Secondary School Completion and Dropouts in Texas Public Schools: 2001-2002, District and Campus Listings

Supplementary compilation summarizing data regarding graduates and dropouts in Texas public secondary schools broken down by districts (alphabetically) and by various demographic characteristics.
Date: August 2003
Creator: Texas Education Agency. Division of Research and Evaluation.
System: The Portal to Texas History
Secondary School Completion and Dropouts in Texas Public Schools: 2001-2002, County Listings (open access)

Secondary School Completion and Dropouts in Texas Public Schools: 2001-2002, County Listings

Supplementary compilation summarizing data regarding graduates and dropouts in Texas public secondary schools broken down by counties (alphabetically) and by various demographic characteristics.
Date: August 2003
Creator: Texas Education Agency. Division of Research and Analysis.
System: The Portal to Texas History
Enrollment in Texas Public Schools: 2001-2002 (open access)

Enrollment in Texas Public Schools: 2001-2002

Partial abstract: This report provides information on enrollment in the Texas public school system from the 1992-93 through 2001-02 school years, based on data collected through the Texas Public Education Information Management System. Enrollment data are provided by grade, race/ethnicity, gender, and economically disadvantaged status, and for special populations and instructional programs. (p. ii).
Date: December 2003
Creator: Texas Education Agency. Division of Accountability Research.
System: The Portal to Texas History
Report of the Red River Compact Commission: 2002 (open access)

Report of the Red River Compact Commission: 2002

Report of the Red River Compact Commission describing the approved budgets, audits, and rules and regulations during fiscal year 2002.
Date: June 2003
Creator: Red River Compact Commission (U.S.)
System: The Portal to Texas History
Gulf Coast Waste Disposal Authority Annual Report: 2002 (open access)

Gulf Coast Waste Disposal Authority Annual Report: 2002

Annual report of the Gulf Coast Waste Disposal Authority describing goals, activities, and accomplishments during fiscal year 2002.
Date: 2003
Creator: Gulf Coast Waste Disposal Authority
System: The Portal to Texas History
Courthouse Cornerstones, Volume [4], Number 1, Winter 2003 (open access)

Courthouse Cornerstones, Volume [4], Number 1, Winter 2003

Annual progress report for the Texas Historic Courthouse Preservation Program outlining courthouses of importance and projects that are finished, ongoing, and planned.
Date: Winter 2003
Creator: Texas Historic Courthouse Preservation Program
System: The Portal to Texas History
Guadalupe-Blanco River Authority Annual Financial Report: 2003 (open access)

Guadalupe-Blanco River Authority Annual Financial Report: 2003

Annual financial report of the Guadalupe-Blanco River Authority of Texas documenting income, expenditures, and other relevant financial information for fiscal year 2003
Date: 2003
Creator: Guadalupe-Blanco River Authority (Tex.)
System: The Portal to Texas History
Influence of Clastic Dikes on Vertical Migration of Contaminants in the Vadose Zone at Hanford (open access)

Influence of Clastic Dikes on Vertical Migration of Contaminants in the Vadose Zone at Hanford

The purpose of this study was to examine the hypothesis that clastic dikes could form a preferential flow path through the vadose zone to the water table at the Hanford Site. Clastic dikes are subvertical structures that form within sedimentary sequences after deposition, and cut across the original sedimentary layers. They are common throughout the Hanford Site, often occurring in organized polygonal networks. In the initial phase of the project, we analyzed the large-scale geometry of the clastic dikes and developed an algorithm for simulating their spatial distribution. This result will be useful in providing maps of the potential distribution of clastic dikes in areas where they are not exposed at the surface (e.g., where covered by windblown sand or by construction of facilities like tank farms at the surface). In addition to the study of the large scale distribution of the dikes, a major focus of the project was on field, laboratory, and modeling studies of the hydrogeologic al properties of the clastic dikes and the effect that they have on transport of water through the vadose zone. These studies were performed at two field locations at the Hanford Site. We performed an extensive series of field and laboratory …
Date: March 14, 2003
Creator: Murray, Christopher J.; Ward, Anderson L. & Wilson, John L.
System: The UNT Digital Library
Reconnaissance of Field Sites for the Study of Chemical Weathering on the Guayana Shield, South America (open access)

Reconnaissance of Field Sites for the Study of Chemical Weathering on the Guayana Shield, South America

Despite the fact that chemical weathering of silicate rocks plays an important role in the draw-down of CO{sub 2} over geologic time scales (Berner and Berner, 1996), the overall controls on the rate of chemical weathering are still not completely understood. Lacking a mechanistic understanding of these controls, it remains difficult to evaluate a hypothesis such as that presented by Raymo and Ruddiman (1992), who suggested that enhanced weathering and CO{sub 2} draw-down resulting from the uplift of the Himalayas contributed to global cooling during the Cenozoic. At an even more fundamental level, the three to four order of magnitude discrepancy between laboratory and field weathering rates is still unresolved (White et al., 1996). There is as yet no comprehensive, mechanistic model for silicate chemical weathering that considers the coupled effects of precipitation, vadose zone flow, and chemical reactions. The absence of robust process models for silicate weathering and the failure to resolve some of these important questions may in fact be related-the controls on the overall rates of weathering cannot be understood without considering the weathering environment as one in which multiple, time-dependent chemical and physical processes are coupled (Malmstrom, 2000). Once chemical weathering is understood at a mechanistic …
Date: February 1, 2003
Creator: Steefell, C. I.; Viani, B. E.; Ramirez, A. & Lee, K.
System: The UNT Digital Library
Laser Peening--Strengthening Metals to Improve Fatigue Lifetime and Retard Stress-Induced Corrosion Cracking in Gears, Bolts and Cutter (open access)

Laser Peening--Strengthening Metals to Improve Fatigue Lifetime and Retard Stress-Induced Corrosion Cracking in Gears, Bolts and Cutter

Laser peening is an emerging modern process that impresses a compressive stress into the surfaces of metals. Treatment can reduce the rate of fatigue cracking and stress-corrosion-cracking in metals (such as gears, bolts and cutters) needed for tunnel boring and other construction & mining applications. Laser peening could also be used to form metals or alloys into a precise shape without yielding and leaving both sulfates in a crack resistant compressive state.
Date: August 20, 2003
Creator: Hackel, L. A. & Chen, H. L.
System: The UNT Digital Library
Feasibility Study of Passive Aerosol Sampler for Bio-Agent Detection (open access)

Feasibility Study of Passive Aerosol Sampler for Bio-Agent Detection

We propose to establish the feasibility of a passive aerosol sampler for bio-agent collection through laboratory experiments and theoretical analysis. The passive sampler, unlike the typical active sampler, does not require pumps and complex fixtures, and thereby allows for large-scale field monitoring not possible with current active samplers. We plan to conduct experiments using model (both biological and non-biological) aerosols generated in an instrumented test chamber and compare the particles collected on various passive samplers to conventional filter samplers, commercial aerosol measuring instruments and to conventional surface swipes. Theoretical analysis will be used to design prototype passive samplers and to compare experimental results with theory. A successful feasibility study will be used to seek outside funding for applications that will greatly enhance current LLNL programs such as NARAC's atmospheric dispersal modeling, NAI's programs in bioagent monitoring in public locations and fixed sampling stations, and EPD's environmental monitoring and decontamination research. In addition, the feasibility study will position us favorably for responding to new calls for proposals by NIH and EPA for large scale environmental studies.
Date: March 5, 2003
Creator: Keating, G. & Bergman, W.
System: The UNT Digital Library
Entangled States, Holography and Quantum Surfaces (open access)

Entangled States, Holography and Quantum Surfaces

Starting with an elementary discussion of quantum holography, we show that entangled quantum states of qubits provide a ''local'' representation of the global geometry and topology of quantum Riemann surfaces. This representation may play an important role in both mathematics and physics. Indeed, the simplest way to represent the fundamental objects in a ''theory of everything'' may be as muti-qubit entangled states.
Date: August 13, 2003
Creator: Chapline, G F
System: The UNT Digital Library
PROCEEDINGS OF RIKEN BNL RESEARCH CENTER WORKSHOP: THEORY STUDIES FOR POLARIZED PP SCATTERING (VOLUME 53) (open access)

PROCEEDINGS OF RIKEN BNL RESEARCH CENTER WORKSHOP: THEORY STUDIES FOR POLARIZED PP SCATTERING (VOLUME 53)

In the past two runs of RHIC, the first measurements with polarized proton beams have been performed. For many years to come, the RHIC spin program will offer exciting physics, exploring QCD and the nucleon in new ways. The aim of this small workshop was to attract several spin theorists to the center for about two weeks, in order to collaborate with both experimentalists and theorists at RBRC, and to initiate and/or complete studies of relevance to RHIC spin. A major focus of polarized-pp measurements at RHIC is on measuring the spin-dependent gluon density, {Delta}g. A channel for accessing {Delta}g is high-p{sub T} pion production. The unpolarized cross section for this reaction has been measured by PHENIX and was found in good agreement with a perturbative-QCD based (NLO) calculation. It was a remarkable and exciting coincidence that PHENIX presented also the first results for the spin asymmetry for {rvec p}{rvec p} {yields} {pi}{sup 0}X during this workshop. This sparked a lot of additional activity and discussion. First steps toward the interpretation of the data were taken. Marco Stratmann and Barbara Jager (Regensburg University) presented recent work on the NLO calculation of the polarized cross section and the spin asymmetry, setting …
Date: September 15, 2003
Creator: KRETZER,S. VOGELSANG,W.
System: The UNT Digital Library
PROCEEDINGS OF RIKEN BNL RESEARCH CENTER WORKSHOP (VOLUME 55) COLLECTIVE FLOW AND QGP PROPERTIES. (open access)

PROCEEDINGS OF RIKEN BNL RESEARCH CENTER WORKSHOP (VOLUME 55) COLLECTIVE FLOW AND QGP PROPERTIES.

The first three years of RHIC physics, with Au/Au collisions induced at 65, 130 and 200 GeV per nucleon pair, produced dramatic results, particularly with respect to collective observables such as transverse flow and anisotropies in transverse momentum spectra. It has become clear that the data show very strong rescattering at very early times of the reaction, strong enough in fact to be described by the hydrodynamic limit. Therefore, with today's experiments, we are able to investigate the equation of state of hot quark gluon matter, discuss its thermodynamic properties and relate them to experimental observables. At this workshop we came together to discuss our latest efforts both in the theoretical description of heavy ion collisions as well as most recent experimental results that ultimately allow us to extract information on the properties of RHIC matter. About 50 participants registered for the workshop, but many more dropped in from the offices at BNL. The workshop lasted for three days, of which each day was assigned a special topic on which the talks focused. On the first day we dealt with the more general question what the strong collective phenomena observed in RHIC collisions tell us about the properties and the …
Date: November 17, 2003
Creator: BASS,S. ESUMI,S. HEINZ,U. KOLB,P. SHURYAK,E. XU,N.
System: The UNT Digital Library
Environmentally Benign Stab Detonators (open access)

Environmentally Benign Stab Detonators

This effort attempts to demonstrate that environmentally acceptable energetic sol-gel coated flash metal multilayer nanocomposites can be used to replace current impact initiated devices (IIDs) which have hazardous and toxic components. Successful completion of this project will result in IIDs that include innocuous compounds, have sufficient output energy for initiation, meet current military specifications, are small, cost competitive, and perform as well as or better than current devices. We expect flash metal multilayer and sol-gel to be generic technologies applicable to a wide range of devices, especially in small caliber ammunition and sub-munitions. We will replace the NOL-130 mixture with a nanocomposite that consists of a mechanically robust energetic multilayer foil that has been coated with a sol-gel energetic material. The exothermic reactions are activated in this nanocomposite are the transformation of the multilayer material to its respective intermetallic alloy and the thermite reaction, which is characterized by very high temperatures, a small pressure pulse, and hot particle ejection. The proposed materials and their reaction products consist of, but are not limited to aluminum, nickel, iron, aluminum oxide, titanium, iron oxide and boron. These materials have much more desirable environmental and health characteristics than the NOL-130 composition.
Date: December 15, 2003
Creator: Gash, A.; Barbee, T.; Simpson, R.; Satcher, J. & Walton, C.
System: The UNT Digital Library
BROOKHAVEN NATIONAL LABORATORY DRAFT INSTITUTIONAL PLAN, FY2004 -- FY2008. (open access)

BROOKHAVEN NATIONAL LABORATORY DRAFT INSTITUTIONAL PLAN, FY2004 -- FY2008.

None
Date: September 23, 2003
Creator: unknown
System: The UNT Digital Library
Updated Volumetric Expansion Factors for K Basin Sludge During Storage (open access)

Updated Volumetric Expansion Factors for K Basin Sludge During Storage

Sludge has accumulated in the K East (KE) and K West (KW) Basins at the Hanford Site. This sludge contains metallic uranium and uranium oxides that will corrode, hydrate, and generate and consume gases during containerized storage. From these corrosion reactions, two sludge expansion mechanisms can be expected: 1) expansion of the volume of the sludge solids from the generation of corrosion oxidation products that occupy more space than the starting-state sludge; and 2) expansion of the bulk sludge volume from the retention of hydrogen gas bubbles. This report provides a review and updated projections of the volumetric expansion occurring due to corrosion and gas retention during the containerized storage of K Basin sludge. New design and safety basis volume expansion values are provided for the following sludge streams: KW Floor, KW North Loadout Pit, KW canister, and fuel piece sludge.
Date: March 14, 2003
Creator: Schmidt, Andrew J. (BATTELLE (PACIFIC NW LAB)) & Delegard, Calvin H. (BATTELLE (PACIFIC NW LAB))
System: The UNT Digital Library
The Impact of Humidity, Temperature and Ultraviolet Light on the Near-Field Environmental Fate of Pinacolyl Alcohol, Methyl Iodide, Methylphosphonic Dichloride (DCMP) and Thionyl Chloride Using an Environmental Wind Tunnel (open access)

The Impact of Humidity, Temperature and Ultraviolet Light on the Near-Field Environmental Fate of Pinacolyl Alcohol, Methyl Iodide, Methylphosphonic Dichloride (DCMP) and Thionyl Chloride Using an Environmental Wind Tunnel

Understanding the near-field fate of parent chemicals and their decay products in the atmosphere provides essential information for the development of remote chemical sensors. To elucidate the near-field fate of candidate chemical signatures, selected gas phase compounds were introduced into atmospheres of varying humidity, temperature and incident light flux. These atmospheres were maintained in an environmental wind tunnel for periods typical of near-field transport scenarios. The range of humidity and temperature into which the compounds were emitted encompassed arid, temperate, and tropical values. Simulated sunlight exposure was used to evaluate the impact of time of release on signature composition. The rates of compound decay and evolution of transformation products under the various environmental conditions were monitored in real time. A Fourier transform infrared spectrometer and a gas chromatograph/mass spectrometer were used to determine chemical concentration, evaluate detectability, and identify potential interferences to the detection capability. Specifically, this report describes the initial system function tests with pinacolyl alcohol and methyl iodide and subsequent atmospheric fate experiments with methylphosphonic dichloride and thionyl chloride. Test system function was evaluated using pinacolyl alcohol because as a relatively non-reactive compound, it served as a negative control for the system. Methyl iodide is a compound known …
Date: January 24, 2003
Creator: Driver, Crystal J.; Johnson, Timothy J.; Su, Yin-Fong; Alexander, M. Lizabeth; Fellows, Robert J.; Magnuson, Jon K. et al.
System: The UNT Digital Library
Addressing Problems with Scene-Based Wave Front Sensing (open access)

Addressing Problems with Scene-Based Wave Front Sensing

Scene-Based Wave Front Sensing uses the correlation between successive subimages to determine phase aberrations which blur digital images. Adaptive Optics technology uses deformable mirrors to correct for these phase aberrations and make the images clearer. The correlation between temporal subimages gives tip-tilt information. If these images do not have identical image content, tip-tilt estimations may be incorrect. Motion detection is necessary to help avoid errors initiated by dynamic subimage content. In this document, I will discuss why edge detection fails as a motion detection method on low resolution images and how thresholding the normalized variance of individual pixels is successful for motion detection.
Date: August 5, 2003
Creator: Chan, C
System: The UNT Digital Library
Building a Bridge to the Ethanol Industry--Follow-up Project: Period of Performance; February 22, 2001- December 31, 2002 (open access)

Building a Bridge to the Ethanol Industry--Follow-up Project: Period of Performance; February 22, 2001- December 31, 2002

Subcontract report summarizing results of a trial of a corn fiber pretreatment process. The results of the trial showed that the carbohydrates in the pretreated liquid and solid streams are readily hydrolyzed by enzymes and easily fermentable to ethanol by yeast.
Date: April 1, 2003
Creator: Ladisch, M.; Mosier, N.; Welch, G. & Dien, B.
System: The UNT Digital Library
NSLS 2002 ACTIVITY REPORT (NATIONAL SYNCHROTRON LIGHT SOURCE ACTIVITY REPORT 2002). (open access)

NSLS 2002 ACTIVITY REPORT (NATIONAL SYNCHROTRON LIGHT SOURCE ACTIVITY REPORT 2002).

The year 2002 has been another highly productive year at the NSLS and an impressive array of highlights from this scientific activity is included in this Activity Report. They have taken significant steps this past year toward better supporting beamlines and users. The number of user science support staff has been increased by about ten positions. They have also worked with their users, DOE, and the other DOE synchrotron facilities to develop a new, more flexible user access policy. Doing things safely remains a top priority, and they are reviewing their training and safety requirements to ensure they are thorough and everyone fully understands the necessity of abiding by them. A major development this past year was approval from DOE for BNL to begin the conceptual design of the Center for Functional Nanomaterials (CFN). The CFN will have a dramatic impact on nanoscience in the Northeast, facilitating the synthesis, characterization and scientific exploration of new classes of novel nanostructured materials. It will be located adjacent to the NSLS and a number of NSLS beamlines will be optimized to serve the needs of the nanoscience community. The NSLS and CFN user programs will be coordinated to facilitate easy access to both …
Date: May 1, 2003
Creator: Miller, L.
System: The UNT Digital Library