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Carbonic Acid Pretreatment of Biomass

Description: This project sought to address six objectives, outlined below. The objectives were met through the completion of ten tasks. 1) Solidify the theoretical understanding of the binary CO2/H2O system at reaction temperatures and pressures. The thermodynamics of pH prediction have been improved to include a more rigorous treatment of non-ideal gas phases. However it was found that experimental attempts to confirm theoretical pH predictions were still off by a factor of about 1.8 pH units. Arrhenius e… more
Date: May 31, 2003
Creator: Walsum, G. Peter van; Jayawardhana, Kemantha; Yourchisin, Damon; McWilliams, Robert & Castleberry, Vanessa
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Correlation Between Domain Behavior and Magnetic Properties of Materials

Description: Correlation between length scales in the field of magnetism has long been a topic of intensive study. The long-term desire is simple: to determine one theory that completely describes the magnetic behavior of matter from an individual atomic particle all the way up to large masses of material. One key piece to this puzzle is connecting the behavior of a material's domains on the nanometer scale with the magnetic properties of an entire large sample or device on the centimeter scale. In the firs… more
Date: May 31, 2003
Creator: Leib, Jeffrey Scott
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Development of Alternative Fuels and Chemicals From Synthesis Gas

Description: This Final Report for Cooperative Agreement No. DE-FC22-95PC93052, the ''Development of Alternative Fuels and Chemicals from Synthesis Gas,'' was prepared by Air Products and Chemicals, Inc. (Air Products), and covers activities from 29 December 1994 through 31 July 2002. The overall objectives of this program were to investigate potential technologies for the conversion of synthesis gas (syngas), a mixture primarily of hydrogen (H{sub 2}) and carbon monoxide (CO), to oxygenated and hydrocarbon… more
Date: May 31, 2003
Creator: Tijrn, Peter J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of Modeling and Simulation for Magnetic Particle Inspection Using Finite Elements

Description: Magnetic particle inspection (MPI) is a widely used nondestructive inspection method for aerospace applications essentially limited to experiment-based approaches. The analysis of MPI characteristics that affect sensitivity and reliability contributes not only reductions in inspection design cost and time but also improvement of analysis of experimental data. Magnetic particles are easily attracted toward a high magnetic field gradient. Selection of a magnetic field source, which produces a mag… more
Date: May 31, 2003
Creator: Lee, Jun-Youl
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Final Report, Distillation Column Flooding Predictor

Description: The Flooding Predictor is an advanced process control strategy comprising a patented pattern-recognition methodology that identifies pre-flood patterns discovered to precede flooding events in distillation columns. The grantee holds a U.S. patent on the modeling system. The technology was validated at the Separations Research Program, The University of Texas at Austin under a grant from the U. S. Department of Energy, Inventions & Innovation Program. Distillation tower flooding occurs at abnorm… more
Date: May 31, 2003
Creator: Dzyacky, George E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Functionalized Materials From Elastomers to High Performance Thermoplastics

Description: Synthesis and incorporation of functionalized materials continues to generate significant research interest in academia and in industry. If chosen correctly, a functional group when incorporated into a polymer can deliver enhanced properties, such as adhesion, water solubility, thermal stability, etc. The utility of these new materials has been demonstrated in drug-delivery systems, coatings, membranes and compatibilizers. Two approaches exist to functionalize a material. The desired moiety can… more
Date: May 31, 2003
Creator: Salazar, Laura Ann
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Geologic Controls of Hydrocarbon Occurrence in the Southern Appalachian Basin in Eastern Tennessee, Southwestern Virginia, Eastern Kentucky, and Southern West Virginia

Description: This report summarizes the first-year accomplishments of a three-year program to investigate the geologic controls of hydrocarbon occurrence in the southern Appalachian basin in eastern Tennessee, southwestern Virginia, eastern Kentucky, and southern West Virginia. The project: (1) employs the petroleum system approach to understand the geologic controls of hydrocarbons; (2) attempts to characterize the T-P parameters driving petroleum evolution; (3) attempts to obtain more quantitative definit… more
Date: May 31, 2003
Creator: Hatcher, Robert D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Is Lutein a Physiologically Important Ligand for Transthyretin in Humans?

Description: Lutein and zeaxanthin are the only carotenoids accumulated in the macula of the human retina and are known as the macular pigments (MP). These pigments account for the yellow color of the macula and appear to play an important role in protecting against age-related macular degeneration (AMD). The uptake of lutein and zeaxanthin in human eyes is remarkably specific. It is likely that specific transport or binding proteins are involved. The objective is to determine whether transthyretin (TTR) is… more
Date: May 31, 2003
Creator: Chen, Liwei
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Nuclear Spin Lattice Relaxation and Conductivity Studies of the Non-Arrhenius Conductivity Behavior in Lithium Fast Ion Conducting Sulfide Glasses

Description: As time progresses, the world is using up more of the planet's natural resources. Without technological advances, the day will eventually arrive when these natural resources will no longer be sufficient to supply all of the energy needs. As a result, society is seeing a push for the development of alternative fuel sources such as wind power, solar power, fuel cells, and etc. These pursuits are even occurring in the state of Iowa with increasing social pressure to incorporate larger percentages … more
Date: May 31, 2003
Creator: Meyer, Benjamin Michael
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Process Optimization for Solid Extraction, Flavor Improvement and Fat Removal in the Production of Soymilk From Full Fat Soy Flakes

Description: Traditionally soymilk has been made with whole soybeans; however, there are other alternative raw ingredients for making soymilk, such as soy flour or full-fat soy flakes. US markets prefer soymilk with little or no beany flavor. modifying the process or using lipoxygenase-free soybeans can be used to achieve this. Unlike the dairy industry, fat reduction in soymilk has been done through formula modification instead of by conventional fat removal (skimming). This project reports the process opt… more
Date: May 31, 2003
Creator: Prawiradjaja, Stanley
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Studies of Immobilized Homogeneous Metal Catalysts on Silica Supports

Description: The tethered, chiral, chelating diphosphine rhodium complex, which catalyzes the enantioselective hydrogenation of methyl-{alpha}-acetamidocinnamate (MAC), has the illustrated structure as established by {sup 31}P NMR and IR studies. Spectral and catalytic investigations also suggest that the mechanism of action of the tethered complex is the same as that of the untethered complex in solution. The rhodium complexes, [Rh(COD)H]{sub 4}, [Rh(COD){sub 2}]{sup +}BF{sub 4}{sup -}, [Rh(COD)Cl]{sub 2},… more
Date: May 31, 2003
Creator: Stanger, Keith James
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Synthesis of Polycyclic Natural Products

Description: With the continuous advancements in molecular biology and modern medicine, organic synthesis has become vital to the support and extension of those discoveries. The isolations of new natural products allow for the understanding of their biological activities and therapeutic value. Organic synthesis is employed to aid in the determination of the relationship between structure and function of these natural products. The development of synthetic methodologies in the course of total syntheses is im… more
Date: May 31, 2003
Creator: Nguyen, Tuan Hoang
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

Biochemistry of Dissimilatory Sulfur Oxidation

Description: The long term goals of this research were to define the substrate oxidation pathways, the electron transport mechanisms, and the modes of energy conservation employed during the dissimilatory oxidation of sulfur practiced by various species of the thiobacilli. Specific adhesion of the thiobacilli to elemental sulfur was studied by electrical impedance, dynamic light scattering, laser Doppler velocimetry, and optical trapping methods. The conclusion is that the thiobacilli appear to express spec… more
Date: May 30, 2003
Creator: Blake, R., II
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Bioenergy Crop Breeding and Production Research in the Southeast, Final Report for 1996 to 2001

Description: Switchgrass (Panicum virgatum L.) is a native grass species to much of the US. It has shown great potential for use in production of fuel ethanol from cellulosic biomass (Lynd et al., 1991). Work in Alabama demonstrated very high dry matter yields can be achieved with switchgrass (Maposse et al. 1995) in the southeastern US. Therefore, this region is thought to be an excellent choice for development of a switchgrass cropping system where farmers can produce the grass for either biomass or forag… more
Date: May 30, 2003
Creator: Bouton, J. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Bioterrorism: Information Technology Strategy Could Strengthen Federal Agencies' Abilities to Respond to Public Health Emergencies

Description: A letter report issued by the General Accounting Office with an abstract that begins "The October 2001 anthrax attacks, the recent outbreak of the virulent Severe Acute Respiratory Syndrome (SARS), and increased awareness that terrorist groups may be capable of releasing life-threatening biological agents have prompted efforts to improve our nation's preparedness for, and response to, public health emergencies--including bioterrorism. GAO was asked, among other things, to identify federal agenc… more
Date: May 30, 2003
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Carcinogens formed when Meat is Cooked

Description: Diet has been associated with varying cancer rates in human populations for many years, yet the causes of the observed variation in cancer patterns have not been adequately explained (Wynder et al. 1977). Along with the effect of diet on human cancer incidence is the strong evidence that mutations are the initiating events in the cancer process (Vogelstein et al. 1992). Foods, when heated, are a good source of genotoxic carcinogens that very likely are a cause for some of these events(Doll et a… more
Date: May 30, 2003
Creator: Felton, J S; Salmon, C P & Knize, M G
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Defense Trade: Report and Recommendations of the Defense Offsets Commission Still Pending

Description: A letter report issued by the General Accounting Office with an abstract that begins "Export sales of defense-related products often include "offsets"-- industrial and commercial benefits, such as technology transfer, which U.S. companies provide to foreign governments as incentives or conditions for purchasing military goods and services. Over the past decade, offsets have increased and in 1998, they totaled about $3 billion per year. In December 2000, GAO reported that countries are becoming … more
Date: May 30, 2003
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effects of Self Irradiation from 238Pu on Candidate Ceramics for Plutonium Immobilization

Description: In this document, we describe the results of radiation damage testing and characterization for specimens that were resintered to re-establish crystallinity. The phases in these specimens have become amorphous from radiation induced damage over the 8 months since sintering.
Date: May 30, 2003
Creator: Strachan, Denis M.; Scheele, Randall D.; Kozelisky, Anne E. & Sell, Rachel L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Elderly Housing: Project Funding and Other Factors Delay Assistance to Needy Households

Description: A letter report issued by the General Accounting Office with an abstract that begins "According to the Department of Housing and Urban Development (HUD), the most widespread and urgent housing problem facing elderly households is affordability. About 3.3 million elderly renter households in the United States have very low incomes (50 percent or less of median area income). The Section 202 Supportive Housing for the Elderly Program provides capital advances (grants) to nonprofit organizations to… more
Date: May 30, 2003
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Electronic Banking: The Check Truncation Issue

Description: If all checks were replaced by electronic transactions, the exact cost savings would still be unknown, because estimates of the cost of using a check and the number of checks written each year remain in dispute. Consequently, estimates of cost savings range from $1.4 billion annually for truncation alone to $68 billion for replacing checks with electronic payments. A significant part of the savings comes from eliminating the handling, sorting, and physically transporting of checks to the paying… more
Date: May 30, 2003
Creator: Eubanks, Walter W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Endangered Species Act (ESA), Migratory Bird Treaty Act (MBTA), and Department of Defense (DOD) Readiness Activities: Current Law and Legislative Proposals

Description: This report provides a brief overview of how the Endangered Species Act (ESA)1 and the Migratory Bird Treaty Act (MBTA)2 and their relevant regulations may apply to military training and readiness activities of the Department of Defense (DOD). Military activities may “take” protected creatures directly (e.g,. killing with ordnance during rifle, gunnery or assault drills), or might destroy habitat (e.g., artillery or bombing practices), even if these results are not the purpose of the activities… more
Date: May 30, 2003
Creator: Baldwin, Pamela
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Energy Policy: The Continuing Debate

Description: On April 10, 2003, the House passed comprehensive energy legislation, H.R. 6 (247- 175). The bill was a composite of four measures – H.R. 39, reported from the House Committee on Resources, H.R. 238, marked up by the House Science Committee, H.R. 1531, reported from Ways and Means, and an unnumbered bill reported out of the Energy and Commerce Committee. Unlike comprehensive energy legislation (H.R. 4) debated in the 107th Congress, H.R. 6 includes a section on electricity which has stirred som… more
Date: May 30, 2003
Creator: Bamberger, Robert L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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