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The Role of Disturbance in Dry Tropical Forest Landscapes

Description: Disturbance can be defined as 'any relatively discrete event in time that disrupts ecosystem, community, or population structure and changes resources, substrate availability, or the physical environment'. This definition requires that the spatial and temporal scales of the system and disturbance be determined. Disturbances are typically characterized by their size, spatial distribution, frequency or return time, predictability, and magnitude (which includes both intensity and severity). These … more
Date: January 1, 2011
Creator: Dale, Virginia H.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
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Demonstration of the BioBaler harvesting system for collection of small-diameter woody biomass

Description: As part of a project to investigate sustainable forest management practices for producing wood chips on the Oak Ridge Reservation (ORR) for the ORNL steam plant, the BioBaler was tested in various Oak Ridge locations in August of 2011. The purpose of these tests and the subsequent economic analysis was to determine the potential of this novel woody biomass harvesting method for collection of small-diameter, low value woody biomass. Results suggest that opportunities may exist for economical har… more
Date: December 1, 2011
Creator: Langholtz, Matthew H.; Caffrey, Kevin R.; Barnett, Elliott J.; Webb, Erin; Brummette, Mark W. & Downing, Mark
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Processing of Soybean Oil into Fuels

Description: Abundant and easily refined, petroleum has provided high energy density liquid fuels for a century. However, recent price fluctuations, shortages, and concerns over the long term supply and greenhouse gas emissions have encouraged the development of alternatives to petroleum for liquid transportation fuels (Van Gerpen, Shanks et al. 2004). Plant-based fuels include short chain alcohols, now blended with gasoline, and biodiesels, commonly derived from seed oils. Of plant-derived diesel feedstock… more
Date: January 1, 2011
Creator: McFarlane, Joanna
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
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Climate change and forests in India: note from the guest editors

Description: Forestry is one of the most important sectors in the context of climate change. It lies at the center-stage of global mitigation and adaptation efforts. Yet, it is one of the least understood sectors, especially in tropical zones, which constitute a significant portion of the global forests. Recently, there has been a growing interest in forests in addressing global climate change. The IPCC Assessment Report 4 (2007) Chapters related to forests have highlighted the limited number of studies on … more
Date: December 23, 2010
Creator: Ravindtranath, N.H. & Aaheim, Asbjporn
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Integrated Energy System with Beneficial Carbon Dioxide (CO2) Use - Final Scientific/Technical Report

Description: This report presents an integrated energy system that combines the production of substitute natural gas through coal hydrogasification with an algae process for beneficial carbon dioxide (CO2) use and biofuel production (funded under Department of Energy (DOE) contract DE-FE0001099). The project planned to develop, test, operate and evaluate a 2 ton-per-day coal hydrogasification plant and 25-acre algae farm at the Arizona Public Service (APS) 1000 Megawatt (MW) Cholla coal-fired power plant in… more
Date: April 29, 2011
Creator: Sun, Xiaolei & Rink, Nancy T
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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International Trade of Biofuels (Brochure)

Description: In recent years, the production and trade of biofuels has increased to meet global demand for renewable fuels. Ethanol and biodiesel contribute much of this trade because they are the most established biofuels. Their growth has been aided through a variety of policies, especially in the European Union, Brazil, and the United States, but ethanol trade and production have faced more targeted policies and tariffs than biodiesel. This fact sheet contains a summary of the trade of biofuels among nat… more
Date: May 1, 2013
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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CBTL Design Case Summary Conventional Feedstock Supply System - Herbaceous

Description: A conventional bale feedstock design has been established that represents supply system technologies, costs, and logistics that are achievable today for supplying herbaceous feedstocks as a blendstock with coal for energy production. Efforts are made to identify bottlenecks and optimize the efficiency and capacities of this supply system, within the constraints of existing local feedstock supplies, equipment, and permitting requirements. The feedstock supply system logistics operations encompas… more
Date: February 1, 2012
Creator: Wright, Christopher T. & Searcy, Erin M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Clean Cities Guide to Alternative Fuel Commercial Lawn Equipment (Brochure)

Description: Guide explains the different types of alternative fuel commercial mowers and lists the makes and models of the ones available on the market. Turf grass is a fixture of the American landscape and the American economy. It is the nation's largest irrigated crop, covering more than 40 million acres. Legions of lawnmowers care for this expanse during the growing season-up to year-round in the warmest climates. The annual economic impact of the U.S. turf grass industry has been estimated at more than… more
Date: October 1, 2011
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Addressing the Recalcitrance of Cellulose Degradation through Cellulase Discovery, Nano-scale Elucidation of Molecular Mechanisms, and Kinetic Modeling

Description: This research project was designed to play a vital role in the development of low cost sugars from cellulosic biomass and contributing to the national effort to displace fossil fuel usage in the USA transportation sector. The goal was to expand the portfolio of cell wall degrading enzymes through innovative research at the nano-scale level, prospecting for novel cellulases and building a kinetic framework for the development of more effective enzymatic conversion processes. More precisely, the … more
Date: June 13, 2011
Creator: Walker, Larry P., Bergstrom, Gary; Corgie, Stephane; Craighead, Harold; Gibson, Donna & Wilson, David
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Handbook for Handling, Storing, and Dispensing E85 and Other Ethanol-Gasoline Blends (Book)

Description: This document serves as a guide for blenders, distributors, sellers, and users of E85 and other ethanol blends above E10. It provides basic information on the proper and safe use of E85 and other ethanol blends and includes supporting technical and policy references.
Date: September 1, 2013
Creator: Moriarty, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Envisioning an Ecologically Sustainable Campus At New England College

Description: Appropriation funding for our project Ecologically Sustainable Campus - New England College (NH). 67.09. supported five environmental initiatives: (1) a wood pellet boiler for our Science Building, (2) solar hot water panels and systems for five campus buildings, (3) campus-wide energy lighting efficiency project, (4) new efficiency boiler system in Colby Residence Hall, and (5) energy efficient lighting system for the new artificial athletic turf field. (1) New England College purchased and in… more
Date: September 30, 2010
Creator: Amato, Paula & Palmer, Gregory
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Experimental Definition and Validation of Protein Coding Transcripts in Chlamydomonas reinhardtii

Description: Algal fuel sources promise unsurpassed yields in a carbon neutral manner that minimizes resource competition between agriculture and fuel crops. Many challenges must be addressed before algal biofuels can be accepted as a component of the fossil fuel replacement strategy. One significant challenge is that the cost of algal fuel production must become competitive with existing fuel alternatives. Algal biofuel production presents the opportunity to fine-tune microbial metabolic machinery for an o… more
Date: January 13, 2012
Creator: Salehi-Ashtiani, Kourosh & Papin, Jason A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Coal/Biomass Gasification at the Colorado School of Mines

Description: This program was a 2.5 year effort focused on technologies that support coal and biomass gasification. Two primary tasks were included in the effort: 1) Coal/Biomass gasification and system optimization and 2) development of high temperature microchannel ceramic heat exchangers.
Date: February 28, 2011
Creator: Parker, Terry; Braun, Robert; Dreyer, Chris; Dean, Anthony; Eberhart, Mark; Kee, Robert et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Carbon Calculator for Land Use Change From Biofuels Production (Cclub). Users' Manual and Technical Documentation.

Description: The Carbon Calculator for Land Use Change from Biofuels Production (CCLUB) calculates carbon emissions from land use change (LUC) for four different ethanol production pathways including corn grain ethanol and cellulosic ethanol from corn stover, miscanthus, and switchgrass. This document discusses the version of CCLUB released May 31, 2012 which includes corn, as did the previous CCLUB version, and three cellulosic feedstocks: corn stover, miscanthus, and switchgrass. CCLUB calculations are ba… more
Date: June 7, 2012
Creator: Mueller, S; Dunn, JB; Wang, M (Energy Systems) & Chicago), (Univ. of Illinois at
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Assessment of Biomass Resources in Afghanistan

Description: Afghanistan is facing many challenges on its path of reconstruction and development. Among all its pressing needs, the country would benefit from the development and implementation of an energy strategy. In addition to conventional energy sources, the Afghan government is considering alternative options such as energy derived from renewable resources (wind, solar, biomass, geothermal). Biomass energy is derived from a variety of sources -- plant-based material and residues -- and can be used in… more
Date: January 1, 2011
Creator: Milbrandt, A. & Overend, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Project Galaxy - Sustianable Resource Supply and Environmental Implications

Description: Understanding what it takes to move from a corn-based liquid fuels industry to one that is cellulosic-based requires a complex transition over time. This transition implies, among other things, a shift from annual cropping systems considered under United States Department of Agriculture (USDA) policy as commodity crops, to perennial lignocellulosic crops that are herbaceous and wood-based. Because of changes in land use as well as biomass and other crop supplies, land-based environmental amenit… more
Date: March 1, 2012
Creator: Downing, Mark & Wimmer, Robert
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Supercomputer Provides Molecular Insight into Cellulose (Fact Sheet)

Description: Groundbreaking research at the National Renewable Energy Laboratory (NREL) has used supercomputing simulations to calculate the work that enzymes must do to deconstruct cellulose, which is a fundamental step in biomass conversion technologies for biofuels production. NREL used the new high-performance supercomputer Red Mesa to conduct several million central processing unit (CPU) hours of simulation.
Date: February 1, 2011
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Estimated United States Transportation Energy Use 2005

Description: A flow chart depicting energy flow in the transportation sector of the United States economy in 2005 has been constructed from publicly available data and estimates of national energy use patterns. Approximately 31,000 trillion British Thermal Units (trBTUs) of energy were used throughout the United States in transportation activities. Vehicles used in these activities include automobiles, motorcycles, trucks, buses, airplanes, rail, and ships. The transportation sector is powered primarily by … more
Date: November 9, 2011
Creator: Smith, C. A.; Simon, A. J. & Belles, R. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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False negative rate and other performance measures of a sponge-wipe surface sampling method for low contaminant concentrations.

Description: Recovery of spores from environmental surfaces is known to vary due to sampling methodology, techniques, spore size and characteristics, surface materials, and environmental conditions. A series of tests were performed to evaluate a new, validated sponge-wipe method. Specific factors evaluated were the effects of contaminant concentrations and surface materials on recovery efficiency (RE), false negative rate (FNR), limit of detection (LOD) - and the uncertainties of these quantities. Ceramic t… more
Date: May 1, 2011
Creator: Einfeld, Wayne; Krauter, Paula A.; Boucher, Raymond M.; Tezak, Mathew; Amidan, Brett G. (Pacific Northwest National Laboratory, Richland, WA) & Piepel, Greg F. (Pacific Northwest National Laboratory, Richland, WA)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Biomass Energy Data Book: Edition 3

Description: The Biomass Energy Data Book is a statistical compendium prepared and published by Oak Ridge National Laboratory (ORNL) under contract with the Biomass Program in the Energy Efficiency and Renewable Energy (EERE) program of the Department of Energy (DOE). Designed for use as a convenient reference, the book represents an assembly and display of statistics and information that characterize the biomass industry, from the production of biomass feedstocks to their end use, including discussions on … more
Date: December 1, 2010
Creator: Boundy, Robert Gary & Davis, Stacy Cagle
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A review on biomass classification and composition, cofiring issues and pretreatment methods

Description: Presently around the globe there is a significant interest in using biomass for power generation as power generation from coal continues to raise environmental concerns. Biomass alone can be used for generation of power which can bring lot of environmental benefits. However the constraints of using biomass alone can include high investments costs for biomass feed systems and also uncertainty in the security of the feedstock supply due to seasonal variations and in most of the countries biomass … more
Date: August 1, 2011
Creator: Tumuluru, Jaya Shankar; Sokhansanj, Shahab; Wright, Christopher T. & Boardman, Richard D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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SRNL LDRD Program Report 2012

Description: Progress is reported on 20 different projects in a wide variety of areas ranging from nuclear chemistry and radiation detection to energy storage and renewable energy.
Date: March 20, 2013
Creator: Hoffman, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Sustainable Transportation Program 2011 Annual Report

Description: Highlights of selected research and development efforts at Oak Ridge National Laboratory funded by the Vehicle Technologies Program, Biomass Program, and Hydrogen and Fuel Cells Program of the Department of Energy, Office of Energy Efficiency and Renewable Energy; and the Department of Transportation.
Date: June 2012
Creator: Vaughan, Kathi H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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