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Biomechanics of Wheat/Barley Straw and Corn Stover

Description: The lack of understanding of the mechanical characteristics of cellulosic feedstocks is a limiting factor in economically collecting and processing crop residues, primarily wheat and barley stems and corn stover. Several testing methods, including compression, tension, and bend have been investigated to increase our understanding of the biomechanical behavior of cellulosic feedstocks. Biomechanical data from these tests can provide required input to numerical models and help advance harvesting,… more
Date: March 1, 2005
Creator: Wright, Christopher T.; Pryfogle, Peter A.; Stevens, Nathan A.; Steffler, Eric D.; Hess, J. Richard & Ulrich, Thomas H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Regulatory role of AINTEGUMENTA in organ initiation and growth

Description: Although several members of the plant-specific AP2/ERF family of transcription factors are important developmental regulators, many genes in this large protein family remain uncharacterized. Here, we present a phylogenetic analysis of the18 genes that make up the AP2 subgroup of this family. We report expression analyses of seven Arabidopsis genes most closely related to the floral development gene AINTEGUMENTA and show that all AINTEGUMENTA-like (AIL) genes are transcribed in multiple tissues … more
Date: March 1, 2005
Creator: Krizek, Beth Allyn & Lebioda, Lukasz
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

An Integrated Hydrogen Production-CO2 Capture Process from Fossil Fuel

Description: The major project objective is to determine the feasibility of using the char from coal and/or biomass pyrolysis, ammonia and CO2 emissions at smokestacks to produce clean hydrogen and a sequestered carbon fertilizer. During this work period, literature review has been completed. The project plan, design and test schedules were made on the basis of discussion with partner in experimental issues. Installation of pilot scale units was finished and major units tests were fully performed. Modificat… more
Date: March 15, 2005
Creator: Wang, Z. & Bota, K. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Materials of Gasification

Description: The objective of this project was to accumulate and establish a database of construction materials, coatings, refractory liners, and transitional materials that are appropriate for the hardware and scale-up facilities for atmospheric biomass and coal gasification processes. Cost, fabricability, survivability, contamination, modes of corrosion, failure modes, operational temperatures, strength, and compatibility are all areas of materials science for which relevant data would be appropriate. The… more
Date: September 15, 2005
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

THERMAL PROPERTIES OF FIBERBOARD OVERPACK MATERIALS IN THE 9975 SHIPPING PACKAGE

Description: The 9975 shipping package incorporates a cane fiberboard overpack for thermal insulation and impact resistance. Thermal properties (thermal conductivity and specific heat capacity) have been measured on cane fiberboard and a similar wood fiber-based product at several temperatures representing potential storage conditions. While the two products exhibit similar behavior, the measured specific heat capacity varies significantly from prior data. The current data are being developed as the basis t… more
Date: June 10, 2005
Creator: VORMELKER, PHILLIP & DAUGHERTY, W. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Full Scale Bioreactor Landfill for Carbon Sequestration and Greenhouse Emission Control

Description: The Yolo County Department of Planning and Public Works constructed a full-scale bioreactor landfill as a part of the Environmental Protection Agency's (EPA) Project XL program to develop innovative approaches for carbon sequestration and greenhouse emission control. The overall objective was to manage landfill solid waste for rapid waste decomposition and maximum landfill gas generation and capture for carbon sequestration and greenhouse emission control. Waste decomposition is accelerated by … more
Date: March 30, 2005
Creator: Yazdani, Ramin; Kieffer, Jeff; Sananikone, Kathy & Augenstein, Don
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A guide to geothermal energy and the environment

Description: Geothermal energy, defined as heat from the Earth, is a statute-recognized renewable resource. The first U.S. geothermal power plant, opened at The Geysers in California in 1960, continues to operate successfully. The United States, as the world's largest producer of geothermal electricity, generates an average of 15 billion kilowatt hours of power per year, comparable to burning close to 25 million barrels of oil or 6 million short tons of coal per year. Geothermal has a higher capacity factor… more
Date: April 22, 2005
Creator: Kagel, Alyssa; Bates, Diana & Gawell, Karl
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Organic C and N stabilization in a forest soil: evidence from sequential density fractionation

Description: In mineral soil, organic matter (OM) accumulates mainly on and around surfaces of silt- and clay-size particles. When fractionated according to particle density, C and N concentration (per g fraction) and C/N of these soil organo-mineral particles decrease with increasing particle density across soils of widely divergent texture, mineralogy, location, and management. The variation in particle density is explained potentially by two factors: (1) a decrease in the mass ratio of organic to mineral… more
Date: July 15, 2005
Creator: Sollins, P; Swanston, C; Kleber, M; Filley, T; Kramer, M; Crow, S et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Treatment of Produced Waters Using a Surfactant Modified Zeolite/Vapor Phase Bioreactor System

Description: This report summarizes work performed on this project from April 2005 through September 2005. In previous work, a series of laboratory scale experiments were conducted to determine the feasibility of using a SMZ system coupled with a VPB to remove and ultimately destroy the organic pollutants found in produced water. Based on the laboratory scale data, a field test of the process was conducted at the McGrath Salt Water Disposal facility in July and August of 2005. The system performed well over… more
Date: September 11, 2005
Creator: Kwon, Soondong; Darby, Elaine B.; Chen, Li-Jung; Katz, Lynn E.; Kinney, Kerry A.; Bowman, R. S. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Basic Research Needs for Solar Energy Utilization. Report of the Basic Energy Sciences Workshop on Solar Energy Utilization, April 18-21, 2005

Description: World demand for energy is projected to more than double by 2050 and to more than triple by the end of the century. Incremental improvements in existing energy networks will not be adequate to supply this demand in a sustainable way. Finding sufficient supplies of clean energy for the future is one of society?s most daunting challenges. Sunlight provides by far the largest of all carbon-neutral energy sources. More energy from sunlight strikes the Earth in one hour (4.3 ? 1020 J) than all the e… more
Date: April 21, 2005
Creator: Lewis, N. S.; Crabtree, G.; Nozik, A. J.; Wasielewski, M. R.; Alivisatos, P.; Kung, H. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Resolving the Impact of Biological Processes on Water Transport in Unsaturated Porous Media Through Nuclear Magnetic Resonance Micro-Imaging

Description: The magnetic resonance microscopy (MRM) work at Montana State University has extended the imaging of a single biofilm in a 1 mm capillary reactor to correlate T2 magnetic relaxation maps displaying biofilm structure with the corresponding velocity patterns in three dimensions in a Staphylococcus epidermidis biofilm fouled square capillary. A square duct geometry is chosen to provide correlation with existing experiments and simulations, as research bioreactors tend to be of square or rectangula… more
Date: June 1, 2005
Creator: Seymour, Joseph D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Treatment of Produced Waters Using a Surfactant Modified Zeolite/Vapor Phase Bioreactor System

Description: This report summarizes work performed on this project from October 2004 through March 2005. In previous work, a surfactant modified zeolite (SMZ) was shown to be an effective system for removing BTEX contaminants from produced water. Additional work on this project demonstrated that a compost-based biofilter could biodegrade the BTEX contaminants found in the SMZ regeneration waste gas stream. However, it was also determined that the BTEX concentrations in the waste gas stream varied significan… more
Date: March 11, 2005
Creator: Kwon, Soondong; Darby, Elaine B.; Chen, Li-Jung; Katz, Lynn E.; Kinney, Kerry A.; Bowman, R. S. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Multidisciplinary Graduate Curriculum in Support of the Biobased Products Industry

Description: The project had a dominant education component. The project involved revising curriculum to educate traditional engineering students in the emerging field of industrial biotechnology. New classes were developed and offered. As a result, the curriculum of the Colorado School of Mines was expanded to include new content. Roughly 100 undergraduates and about 10 graduate students each year benefit from this curricular expansion. The research associated with this project consisted of developing new … more
Date: September 30, 2005
Creator: Dorgan, John R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Regulatory and Permitting Issues

Description: As part of the West Coast Regional Carbon Sequestration Partnership (WESTCARB), Terralog Technologies USA, Inc., reviewed current state and federal regulations related to carbon dioxide capture and storage within geologic formations and enhanced carbon uptake in terrestrial ecosystems. We have evaluated and summarized the current and possible future permitting requirements for the six states that comprise the West Coast Regional Partnership. Four options exist for CO{sub 2} injection into appro… more
Date: December 1, 2005
Creator: Myer, Larry
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced High-Temperature, High-Pressure Transport Reactor Gasification

Description: The transport reactor development unit (TRDU) was modified to accommodate oxygen-blown operation in support of a Vision 21-type energy plex that could produce power, chemicals, and fuel. These modifications consisted of changing the loop seal design from a J-leg to an L-valve configuration, thereby increasing the mixing zone length and residence time. In addition, the standpipe, dipleg, and L-valve diameters were increased to reduce slugging caused by bubble formation in the lightly fluidized s… more
Date: August 30, 2005
Creator: Swanson, Michael L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Biomass Energy R&D in the San Francisco Bay Area

Description: Biomass is plant matter such as trees, grasses, agricultural crops or other biological material. It can be used as a solid fuel, or converted into liquid or gaseous forms, for the production of electric power, heat, chemicals, or fuels. There are a number of ways of getting energy from biomass, and a number of factors influence the efficiency of the conversion process. All biomass can be easily combusted. The heat of combustion can be used as heat, or can be used to run gas/steam turbines to pr… more
Date: December 7, 2005
Creator: Upadhye, R
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Biomass as Feedstock for a Bioenergy and Bioproducts Industry: The Technical Feasability of a Billion-Ton Annual Supply

Description: The U.S. Department of Energy (DOE) and the U.S. Department of Agriculture (USDA) are both strongly committed to expanding the role of biomass as an energy source. In particular, they support biomass fuels and products as a way to reduce the need for oil and gas imports; to support the growth of agriculture, forestry, and rural economies; and to foster major new domestic industries--biorefineries--making a variety of fuels, chemicals, and other products. As part of this effort, the Biomass R&am… more
Date: December 15, 2005
Creator: Perlack, R.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Final Technical Report

Description: The forest products industry consumes large amounts of energy. Understanding how genetic variation in trees actually controls the characteristics of wood, the major raw material utilized by the industry, is an opportunity for energy savings. For companies that are vertically integrated (i.e., have both tree production and processing operations), energy savings can accrue for both production and processing. Tree production demands nitrogen fertilizers, the manufacture of which is highly energy i… more
Date: March 31, 2005
Creator: Davis, John M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Spectra Observed Following Cargo Interrogation

Description: The authors present calculations of photon spectra observed following irradiation of bare HEU, HEU embedded in steel and wood cargos, and steel and wood alone. These spectra might be useful starting points for statistical detection efforts aimed at determining whether fissile material is present in a cargo. Detailed comparisons between calculations and experiments are presented and overall quite good (small {chi}{sup 2}) agreement is found. they do not present a complete solution to the problem… more
Date: November 15, 2005
Creator: Pruet, J; Prussin, S; Descalle, M & Hall, J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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