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Genomic Prospecting for Microbial Biodiesel Production

Description: Biodiesel is defined as fatty acid mono-alkylesters and is produced from triacylglycerols. In the current article we provide an overview of the structure, diversity and regulation of the metabolic pathways leading to intracellular fatty acid and triacylglycerol accumulation in three types of organisms (bacteria, algae and fungi) of potential biotechnological interest and discuss possible intervention points to increase the cellular lipid content. The key steps that regulate carbon allocation an… more
Date: March 20, 2008
Creator: Lykidis, Athanasios; Lykidis, Athanasios & Ivanova, Natalia
Partner: UNT Libraries Government Documents Department
open access

Optics and multilayer coatings for EUVL systems

Description: EUV lithography (EUVL) employs illumination wavelengths around 13.5 nm, and in many aspects it is considered an extension of optical lithography, which is used for the high-volume manufacturing (HVM) of today's microprocessors. The EUV wavelength of illumination dictates the use of reflective optical elements (mirrors) as opposed to the refractive lenses used in conventional lithographic systems. Thus, EUVL tools are based on all-reflective concepts: they use multilayer (ML) coated optics for t… more
Date: March 21, 2008
Creator: Soufli, R.; Bajt, S.; Hudyma, R. M. & Taylor, J. S.
Partner: UNT Libraries Government Documents Department
open access

Thermal springs of Wyoming

Description: This bulletin attempts, first, to provide a comprehensive inventory of the thermal springs of Wyoming; second, to explore the geologic and hydrologic factors producing these springs; and, third, to analyze the springs collectively as an indicator of the geothermal resources of the state. A general discussion of the state's geology and the mechanisms of thermal spring production, along with a brief comparison of Wyoming's springs with worldwide thermal features are included. A discussion of geot… more
Date: March 1978
Creator: Breckenridge, R. M. & Hinckley, B. S.
Partner: UNT Libraries Government Documents Department
open access

Methods for chemical analysis of water and wastes

Description: This manual provides test procedures approved for the monitoring of water supplies, waste discharges, and ambient waters, under the Safe Drinking Water Act, the National Pollutant Discharge Elimination System, and Ambient Monitoring Requirements of Section 106 and 208 of Public Law 92-500. The test methods have been selected to meet the needs of federal legislation and to provide guidance to laboratories engaged in the protection of human health and the aquatic environment.
Date: March 1, 1979
Partner: UNT Libraries Government Documents Department
open access

Northern California Power Agency's notice of intention to file an application for certification of NCPA Geothermal Project No. 2. Final report

Description: Final findings and conclusions are presented on: conformity to the forecast of statewide and service area electric power demands; conformity of the proposed site and facility with applicable local, regional, state, and federal standards, ordinances, and laws; and the safety and reliability of the facility. Also included is a proposed decision approving the notice, with conditions, for consideraion by the full Commission. In addition, a description of the proposed project, a summary of the proce… more
Date: March 1979
Partner: UNT Libraries Government Documents Department
open access

National Renewable Energy Laboratory 2001 Information Resources Catalog

Description: The National Renewable Energy Laboratory's (NREL) eighth annual Information Resources Catalog can help keep you up-to-date on the research, development, opportunities, and available technologies in energy efficiency and renewable energy. The catalog includes five main sections with entries grouped according to subject area.
Date: March 1, 2002
Partner: UNT Libraries Government Documents Department
open access

Methods for Engineering Sulfate Reducing Bacteria of the Genus Desulfovibrio

Description: Sulfate reducing bacteria are physiologically important given their nearly ubiquitous presence and have important applications in the areas of bioremediation and bioenergy. This chapter provides details on the steps used for homologous-recombination mediated chromosomal manipulation of Desulfovibrio vulgaris Hildenborough, a well-studied sulfate reducer. More specifically, we focus on the implementation of a 'parts' based approach for suicide vector assembly, important aspects of anaerobic cult… more
Date: March 15, 2011
Creator: Chhabra, Swapnil R; Keller, Kimberly L. & Wall, Judy D.
Partner: UNT Libraries Government Documents Department
open access

Interactive Volume Rendering of Diffusion Tensor Data

Description: As 3D volumetric images of the human body become an increasingly crucial source of information for the diagnosis and treatment of a broad variety of medical conditions, advanced techniques that allow clinicians to efficiently and clearly visualize volumetric images become increasingly important. Interaction has proven to be a key concept in analysis of medical images because static images of 3D data are prone to artifacts and misunderstanding of depth. Furthermore, fading out clinically irrelev… more
Date: March 30, 2007
Creator: Hlawitschka, Mario; Weber, Gunther; Anwander, Alfred; Carmichael, Owen; Hamann, Bernd & Scheuermann, Gerik
Partner: UNT Libraries Government Documents Department
open access

Fluid effects on seismic waves in hard rocks with fractures and in soft granular media

Description: When fractures in otherwise hard rocks are filled with fluids (oil, gas, water, CO{sub 2}), the type and physical state of the fluid (liquid or gas) can make a large difference in the wave speeds and attenuation properties of seismic waves. The present work summarizes methods of deconstructing theses effects of fractures, together with any fluids contained within them, on wave propagation as observed in reflection seismic data. Additional studies of waves in fluid-saturated granular media show … more
Date: March 1, 2009
Creator: Berryman, James G.
Partner: UNT Libraries Government Documents Department
open access

Exceptional groups, symmetric spaces and applications

Description: In this article we provide a detailed description of a technique to obtain a simple parameterization for different exceptional Lie groups, such as G{sub 2}, F{sub 4} and E{sub 6}, based on their fibration structure. For the compact case, we construct a realization which is a generalization of the Euler angles for SU(2), while for the non compact version of G{sub 2(2)}/SO(4) we compute the Iwasawa decomposition. This allows us to obtain not only an explicit expression for the Haar measure on the… more
Date: March 31, 2009
Creator: Cerchiai, Bianca L. & Cacciatori, Sergio L.
Partner: UNT Libraries Government Documents Department
open access

Mass Transport within Soils

Description: Contaminants in soil can impact human health and the environment through a complex web of interactions. Soils exist where the atmosphere, hydrosphere, geosphere, and biosphere converge. Soil is the thin outer zone of the earth's crust that supports rooted plants and is the product of climate and living organisms acting on rock. A true soil is a mixture of air, water, mineral, and organic components. The relative proportions of these components determine the value of the soil for agricultural an… more
Date: March 1, 2009
Creator: McKone, Thomas E.
Partner: UNT Libraries Government Documents Department
open access

Correcting transport errors during advection of aerosol and cloud moment sequences in eulerian models

Description: Moment methods are finding increasing usage for simulations of particle population balance in box models and in more complex flows including two-phase flows. These highly efficient methods have nevertheless had little impact to date for multi-moment representation of aerosols and clouds in atmospheric models. There are evidently two reasons for this: First, atmospheric models, especially if the goal is to simulate climate, tend to be extremely complex and take many man-years to develop. Thus th… more
Date: March 1, 2012
Creator: R., McGraw
Partner: UNT Libraries Government Documents Department
open access

Development of Glass Matrices for HLW Radioactive Wastes

Description: Vitrification is currently the most widely used technology for the treatment of high level radioactive wastes (HLW) throughout the world. Most of the nations that have generated HLW are immobilizing in either borosilicate glass or phosphate glass. One of the primary reasons that glass has become the most widely used immobilization media is the relative simplicity of the vitrification process, e.g. melt waste plus glass forming frit additives and cast. A second reason that glass has become widel… more
Date: March 18, 2010
Creator: Jantzen, Carol M.
Partner: UNT Libraries Government Documents Department
open access

Tumor Engineering: The Other Face of Tissue Engineering

Description: Advances in tissue engineering have been accomplished for years by employing biomimetic strategies to provide cells with aspects of their original microenvironment necessary to reconstitute a unit of both form and function for a given tissue.We believe that the most critical hallmark of cancer is loss of integration of architecture and function; thus, it stands to reason that similar strategies could be employed to understand tumor biology. In this commentary, we discuss work contributed by Fis… more
Date: March 9, 2010
Creator: Ghajar, Cyrus M & Bissell, Mina J
Partner: UNT Libraries Government Documents Department
open access

BTS Case Study: Prairie Crossing Homes

Description: More than three hundred homes are being built in a northwest Chicago suburb that demonstrate the ''whole house'' design concept. The homes cost approximately the same as competitive houses of the same size but use approximately 50% less energy for heating and cooling.
Date: March 8, 1999
Creator: Brandegee
Partner: UNT Libraries Government Documents Department
open access

Whole House Fan

Description: An informational fact sheet about the energy-cost benefits of a whole house fan, installation tips, and selection criteria.
Date: March 19, 1999
Creator: Group, Brandegee
Partner: UNT Libraries Government Documents Department
open access

BTS Software Tools for Energy Efficient Buildings

Description: A summary of the software available to building industry professionals on the Internet Web site www.eren.doe.gov/buildings/tools{_}directory.
Date: March 6, 1999
Creator: Brandegee
Partner: UNT Libraries Government Documents Department
open access

Going Extreme For Small Solutions To Big Environmental Challenges

Description: This chapter is devoted to the scale, scope, and specific issues confronting the cleanup and long-term disposal of the U.S. nuclear legacy generated during WWII and the Cold War Era. The research reported is aimed at complex microbiological interactions with legacy waste materials generated by past nuclear production activities in the United States. The intended purpose of this research is to identify cost effective solutions to the specific problems (stability) and environmental challenges (fa… more
Date: March 31, 2011
Creator: Bagwell, Christopher E.
Partner: UNT Libraries Government Documents Department
open access

POST-OPERATIONAL TREATMENT OF RESIDUAL NA COOLLANT IN EBR-2 USING CARBONATION

Description: At the end of 2002, the Experimental Breeder Reactor Two (EBR-II) facility became a U.S. Resource Conservation and Recovery Act (RCRA) permitted site, and the RCRA permit1 compelled further treatment of the residual sodium in order to convert it into a less reactive chemical form and remove the by-products from the facility, so that a state of RCRA 'closure' for the facility may be achieved (42 U.S.C. 6901-6992k, 2002). In response to this regulatory driver, and in recognition of project budget… more
Date: March 8, 2011
Creator: Sherman, S. & Knight, C.
Partner: UNT Libraries Government Documents Department
open access

Evaluation of the Compressed Air Challenge(R) Training Program (Executive Summary)

Description: The final report of the evaluation of the Compressed Air Challenge (CAC) Training Program. The training program is designed to provide plant personnel and compressed air system vendors with knowledge and tools required to effect improvements to the energy efficiency and overall performance of plant compressed air systems. As of May 2001, 3,029 individuals had attended the CAC Fundamentals of Compressed Air Training Systems and 925 individuals had attended ''Advanced Management of Compressed Air… more
Date: March 1, 2004
Partner: UNT Libraries Government Documents Department
open access

DNA Damage Quantitation by Alkaline Gel Electrophoresis.

Description: Physical and chemical agents in the environment, those used in clinical applications, or encountered during recreational exposures to sunlight, induce damages in DNA. Understanding the biological impact of these agents requires quantitation of the levels of such damages in laboratory test systems as well as in field or clinical samples. Alkaline gel electrophoresis provides a sensitive (down to {approx} a few lesions/5Mb), rapid method of direct quantitation of a wide variety of DNA damages in … more
Date: March 24, 2004
Creator: Sutherland, B. M.; Bennett, P. V. & Sutherland, J. C.
Partner: UNT Libraries Government Documents Department
open access

Energy Efficiency Pays

Description: A fact sheet explaining the technology and benefits of energy efficient residential construction using the ''whole building'' approach.
Date: March 19, 1999
Creator: Group, Brandegee
Partner: UNT Libraries Government Documents Department
open access

NEUTRON IMAGING, RADIOGRAPHY AND TOMOGRAPHY.

Description: Neutrons are an invaluable probe in a wide range of scientific, medical and commercial endeavors. Many of these applications require the recording of an image of the neutron signal, either in one-dimension or in two-dimensions. We summarize the reactions of neutrons with the most important elements that are used for their detection. A description is then given of the major techniques used in neutron imaging, with emphasis on the detection media and position readout principle. Important characte… more
Date: March 2002
Creator: Smith, G. C.
Partner: UNT Libraries Government Documents Department
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