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Sample records for abstract switchgrass panicum

  1. Review and model-based analysis of factors influencing soil carbon sequestration beneath switchgrass (Panicum virgatum)

    SciTech Connect (OSTI)

    Garten Jr, Charles T [ORNL

    2012-01-01

    Abstract. A simple, multi-compartment model was developed to predict soil carbon sequestration beneath switchgrass (Panicum virgatum) plantations in the southeastern United States. Soil carbon sequestration is an important component of sustainable switchgrass production for bioenergy because soil organic matter promotes water retention, nutrient supply, and soil properties that minimize erosion. A literature review was included for the purpose of model parameterization and five model-based experiments were conducted to predict how changes in environment (temperature) or crop management (cultivar, fertilization, and harvest efficiency) might affect soil carbon storage and nitrogen losses. Predictions of soil carbon sequestration were most sensitive to changes in annual biomass production, the ratio of belowground to aboveground biomass production, and temperature. Predictions of ecosystem nitrogen loss were most sensitive to changes in annual biomass production, the soil C/N ratio, and nitrogen remobilization efficiency (i.e., nitrogen cycling within the plant). Model-based experiments indicated that 1) soil carbon sequestration can be highly site specific depending on initial soil carbon stocks, temperature, and the amount of annual nitrogen fertilization, 2) response curves describing switchgrass yield as a function of annual nitrogen fertilization were important to model predictions, 3) plant improvements leading to greater belowground partitioning of biomass could increase soil carbon sequestration, 4) improvements in harvest efficiency have no indicated effects on soil carbon and nitrogen, but improve cumulative biomass yield, and 5) plant improvements that reduce organic matter decomposition rates could also increase soil carbon sequestration, even though the latter may not be consistent with desired improvements in plant tissue chemistry to maximize yields of cellulosic ethanol.

  2. Large-scale production, harvest and logistics of switchgrass (Panicum virgatum L.) - current technology and envisioning a mature technology

    SciTech Connect (OSTI)

    Sokhansanj, Shahabaddine; Turhollow, Jr., Anthony; Mani, Sudhagar; Kumar, Amit; Bransby, David; Lynd, L.; Laser, Mark

    2009-03-01

    Switchgrass (Panicum virgatum L.) is a promising cellulosic biomass feedstock for biorefineries and biofuel production. This paper reviews current and future potential technologies for production, harvest, storage, and transportation of switchgrass. Our analysis indicates that for a yield of 10 Mg ha 1, the current cost of producing switchgrass (after establishment) is about $41.50 Mg 1. The costs may be reduced to about half this if the yield is increased to 30 Mg ha 1 through genetic improvement, intensive crop management, and/or optimized inputs. At a yield of 10 Mg ha 1, we estimate that harvesting costs range from $23.72 Mg 1 for current baling technology to less than $16 Mg 1 when using a loafing collection system. At yields of 20 and 30 Mg ha 1 with an improved loafing system, harvesting costs are even lower at $12.75 Mg 1 and $9.59 Mg 1, respectively. Transport costs vary depending upon yield and fraction of land under switchgrass, bulk density of biomass, and total annual demand of a biorefinery. For a 2000 Mg d 1 plant and an annual yield of 10 Mg ha 1, the transport cost is an estimated $15.42 Mg 1, assuming 25% of the land is under switchgrass production. Total delivered cost of switchgrass using current baling technology is $80.64 Mg 1, requiring an energy input of 8.5% of the feedstock higher heating value (HHV). With mature technology, for example, a large, loaf collection system, the total delivered cost is reduced to about $71.16 Mg 1 with 7.8% of the feedstock HHV required as input. Further cost reduction can be achieved by combining mature technology with increased crop productivity. Delivered cost and energy input do not vary significantly as biorefinery capacity increases from 2000 Mg d 1 to 5000 Mg d 1 because the cost of increased distance to access a larger volume feedstock offsets the gains in increased biorefinery capacity. This paper outlines possible scenarios for the expansion of switchgrass handling to 30 Tg (million Mg) in 2015 and 100 Tg in 2030 based on predicted growth of the biorefinery industry in the USA. The value of switchgrass collection operations is estimated at more than $0.6 billion in 2015 and more than $2.1 billion in 2030. The estimated value of post harvest operations is $0.6 $2.0 billion in 2015, and $2.0 $6.5 billion in 2030, depending on the degree of preprocessing. The need for power equipment (tractors) will increase from 100 MW in 2015 to 666 MW in 2030, with corresponding annual values of $150 and $520 million, respectively. 2009 Society of Chemical Industry and John Wiley & Sons, Ltd

  3. Production of polyhydroxybutyrate in switchgrass

    DOE Patents [OSTI]

    Somleva, Mariya N.; Snell, Kristi D.; Beaulieu, Julie; Peoples, Oliver P.; Garrison, Bradley; Patterson, Nii

    2013-07-16

    Transgenic plants, plant material, and plant cells for synthesis of polyhydroxyalkanoates, preferably poly(3-hydroxybutyrate) (also referred to a as PHB) are provided. Preferred plants that can be genetically engineered to produce PHB include plants that do not normally produce storage products such as oils and carbohydrates, and plants that have a C.sub.4 NAD-malic enzyme photosynthetic pathway. Such plants also advantageously produce lignocellulosic biomass that can be converted into biofuels. An exemplary plant that can be genetically engineered to produce PHB and produce lignocellulosic biomass is switchgrass, Panicum virgatum L. A preferred cultivar of switchgrass is Alamo. Other suitable cultivars of switchgrass include but are not limited to Blackwell, Kanlow, Nebraska 28, Pathfinder, Cave-in-Rock, Shelter and Trailblazer.

  4. Switchgrass cultivar

    DOE Patents [OSTI]

    Wu, Yanqi; Taliaferro, Charles M.

    2012-10-02

    A new cultivar of switchgrass `Cimarron` (SL93 2001-1) having increased biomass yield is provided. The switchgrass comprises all the morphological and physiological properties of the cultivar grown from a seed deposited under American Type Culture Collection (ATCC) No. PTA-10116. The invention also provides seeds, progeny, parts and methods of use of Cimarron, such as for the production of biofuels.

  5. Switchgrass cultivar EG1101

    DOE Patents [OSTI]

    Bouton, Joseph H; Wood, Donald T

    2012-11-27

    A switchgrass cultivar designated EG1101 is disclosed. Also disclosed are seeds of switchgrass cultivar EG1101, plants of switchgrass EG1101, plant parts of switchgrass cultivar EG1101 and methods for producing a switchgrass plant produced by crossing switchgrass cultivar EG1101 with itself or with another switchgrass variety. Methods are also described for producing a switchgrass plant containing in its genetic material one or more transgenes and to the transgenic switchgrass plants and plant parts produced by those methods. Switchgrass cultivars or breeding cultivars and plant parts derived from switchgrass variety EG1101, methods for producing other switchgrass cultivars, lines or plant parts derived from switchgrass cultivar EG1101 and the switchgrass plants, varieties, and their parts derived from use of those methods are described herein. Hybrid switchgrass seeds, plants and plant parts produced by crossing the cultivar EG1101 with another switchgrass cultivar are also described.

  6. Switchgrass cultivar EG1102

    DOE Patents [OSTI]

    Bouton, Joseph H; Wood, Donald T

    2012-11-20

    A switchgrass cultivar designated EG1102 is disclosed. The invention relates to the seeds of switchgrass cultivar EG1102, to the plants of switchgrass EG1102, to plant parts of switchgrass cultivar EG1102 and to methods for producing a switchgrass plant produced by crossing switchgrass cultivar EG1102 with itself or with another switchgrass variety. The invention also relates to methods for producing a switchgrass plant containing in its genetic material one or more transgenes and to the transgenic switchgrass plants and plant parts produced by those methods. This invention also relates to switchgrass cultivars or breeding cultivars and plant parts derived from switchgrass variety EG1102, to methods for producing other switchgrass cultivars, lines or plant parts derived from switchgrass cultivar EG1102 and to the switchgrass plants, varieties, and their parts derived from use of those methods. The invention further relates to hybrid switchgrass seeds, plants and plant parts produced by crossing the cultivar EG1102 with another switchgrass cultivar.

  7. Simulating Potential Switchgrass Production in the United States

    SciTech Connect (OSTI)

    Thomson, Allison M.; Izaurralde, Roberto C.; West, T. O.; Parrish, David J.; Tyler, Donald D.; Williams, Jimmy R.

    2009-12-31

    Using results from field trials of switchgrass (Panicum virgatum L.) in the United States, the EPIC (Environmental Policy Integrated Climate) process-level agroecosystem model was calibrated, validated, and applied to simulate potential productivity of switchgrass for use as a biofuel feedstock. The model was calibrated with a regional study of 10-yr switchgrass field trials and subsequently tested against a separate compiled dataset of field trials from across the eastern half of the country. An application of the model in a national database using 8-digit watersheds as the primary modeling unit produces 30-yr average switchgrass yield estimates that can be aggregated to 18 major watersheds. The model projects average annual switchgrass productivity of greater than 7 Mg ha-1 in the Upper Mississippi, Lower Mississippi, and Ohio watersheds. The major factors limiting simulated production vary by region; low precipitation is the primary limiting factor across the western half of the country, while moderately acidic soils limit yields on lands east of the Mississippi River. Average projected switchgrass production on all crop land in the continental US is 5.6 Mg ha-1. At this level of productivity, 28.6 million hectares of crop land would be required to produce the 16 billion gallons of cellulosic ethanol called for by 2022 in the 2007 Energy Independence and Security Act. The model described here can be applied as a tool to inform the land-use and environmental consequences of switchgrass production.

  8. Switchgrass ubiquitin promoter (PVUBI2) and uses thereof

    DOE Patents [OSTI]

    Stewart, C. Neal; Mann, David George James

    2013-12-10

    The subject application provides polynucleotides, compositions thereof and methods for regulating gene expression in a plant. Polynucleotides disclosed herein comprise novel sequences for a promoter isolated from Panicum virgatum (switchgrass) that initiates transcription of an operably linked nucleotide sequence. Thus, various embodiments of the invention comprise the nucleotide sequence of SEQ ID NO: 2 or fragments thereof comprising nucleotides 1 to 692 of SEQ ID NO: 2 that are capable of driving the expression of an operably linked nucleic acid sequence.

  9. Iowa Switchgrass Project

    SciTech Connect (OSTI)

    2006-09-01

    This fact sheet provides information about developing markets for switchgrass as an alternative energy crop in southern Iowa.

  10. ABSTRACT

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    0-1395 Ae ABSTRACT - 35 th IEEE PVSC - Honolulu, HI SOLAR ENERGY GRID INTEGRATION SYSTEMS (SEGIS) PROACTIVE INTELLIGENT ADVANCES FOR PHOTOVOTAIC SYSTEMS Ward Bower 1 Scott Kuszmaul 2 Sig Gonzalez 2 Abbas Akhil 3 wibower@sandia.gov sskuszm@sandia.gov sgonza@sandia.gov aaakhil@sandia.gov 1. Materials, Devices and Energy Technology; 2. Photovoltaic and Grid Integration 3. Energy Infrastructure and DER Sandia National Laboratories; Albuquerque, NM 87185-0734; USA ABSTRACT This paper provides an

  11. Abstract:

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Abstract: We present a unique approach to the design and synthesis of "giant molecules" based on "nano-atoms" for engineering structures across multiple length scales and controlling their macroscopic properties. Herein, "nano-atoms" refer to shape-persistent molecular nanoparticles (MNPs) with precisely-defined chemical structures and surface functionalities that can serve as elemental building blocks for the precision synthesis of "giant molecules" by

  12. ABSTRACT

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ii ABSTRACT This report is a thematic study of buildings and facilities constructed at Savannah River Site to produce heavy water in the 400/D Area. It was prepared in accordance with a Memorandum of Agreement (MOA) signed by the Department of Energy-Savannah River (DOE-SR) and the South Carolina Historic Preservation Office (SHPO) dated February 27, 2003 that stipulated that a thematic study and photographic documentation be produced that told the story of D Area's genesis, its operational

  13. Abstract

    Office of Scientific and Technical Information (OSTI)

    Abstract of the Dissertation Determination of the Strong Coupling Constant (a°) and a Test of Perturbative QCD Using W+ Jets Processes in the DO Detector by Jaehoon Yu Doctor of Phitosophy in Physics State University of New York at Stony Brook 1993 The DO experiment has accumulated data for a study of inclu- sive W production corresponding to a total integrated luminosity of 14.3+1.7 pb-1 during the 1992-1993 Fermilab Tevatron collider run. The total number of W --, e + v candidates is 9770.

  14. Switchgrass Demonstration Project

    SciTech Connect (OSTI)

    De La Torre Ugarte, Daniel; English, Burton C.

    2012-04-05

    Develop a pilot study that establishes up to 120 acres of cropland in switchgrass and 20 acres on a TN Experiment Station Farm. This subtask would assess production of switchgrass within the state of Tennessee under a variety of conditions and topography through on-farm production totaling 120 acres. Farms would be selected to participate through a bid process. Costs of establishment and maintenance of the switchgrass would be covered. In addition, allowances would be made for covering land rent and providing a yield incentive. An information and education program would be provided to producers prior to the bid process to assist producers in their bid decision. Agronomic, logistic, energy conversion and farming system issues associated with commercialization of a biomass energy industry are evaluated. Information on the opportunities for producing switchgrass as an energy feedstock are extended

  15. Effects of torrefaction and densification on switchgrass pyrolysis products

    SciTech Connect (OSTI)

    Yang, Zixu; Sarkar, Madhura; Kumar, Ajay; Tumuluru, Jaya Shankar; Huhnke, Raymond L.

    2014-12-01

    Abstract The pyrolysis behaviors of four types of pretreated switchgrass (torrefied at 230 and 270 C, densification, and torrefaction at 270 C followed by densification) were studied at three temperatures (500, 600, 700 C) using a pyroprobe attached to a gas chromatogram mass spectroscopy (Py-GC/MS). The torrefaction of switchgrass improved its oxygen to carbon ratio and energy content. Contents of anhydrous sugars and phenols in pyrolysis products of torrefied switchgrass were higher than those in pyrolysis products of raw switchgrass. As the torrefaction temperature increased from 230 to 270 C, the contents of anhydrous sugars and phenols in pyrolysis products increased whereas content of guaiacols decreased. High pyrolysis temperature (600 and 700 C as compared to 500 C) enhanced decomposition of lignin and anhydrous sugars, leading to increase in phenols, aromatics and furans. Densification enhanced depolymerization of cellulose and hemicellulose during pyrolysis.

  16. Targeted discovery of glycoside hydrolases from a switchgrass-adapted compost community

    SciTech Connect (OSTI)

    Allgaier, M.; Reddy, A.; Park, J. I.; Ivanova, N.; D'haeseleer, P.; Lowry, S.; Sapra, R.; Hazen, T.C.; Simmons, B.A.; VanderGheynst, J. S.; Hugenholtz, P.

    2009-11-15

    Development of cellulosic biofuels from non-food crops is currently an area of intense research interest. Tailoring depolymerizing enzymes to particular feedstocks and pretreatment conditions is one promising avenue of research in this area. Here we added a green-waste compost inoculum to switchgrass (Panicum virgatum) and simulated thermophilic composting in a bioreactor to select for a switchgrass-adapted community and to facilitate targeted discovery of glycoside hydrolases. Small-subunit (SSU) rRNA-based community profiles revealed that the microbial community changed dramatically between the initial and switchgrass-adapted compost (SAC) with some bacterial populations being enriched over 20-fold. We obtained 225 Mbp of 454-titanium pyrosequence data from the SAC community and conservatively identified 800 genes encoding glycoside hydrolase domains that were biased toward depolymerizing grass cell wall components. Of these, {approx}10% were putative cellulases mostly belonging to families GH5 and GH9. We synthesized two SAC GH9 genes with codon optimization for heterologous expression in Escherichia coli and observed activity for one on carboxymethyl cellulose. The active GH9 enzyme has a temperature optimum of 50 C and pH range of 5.5 to 8 consistent with the composting conditions applied. We demonstrate that microbial communities adapt to switchgrass decomposition using simulated composting condition and that full-length genes can be identified from complex metagenomic sequence data, synthesized and expressed resulting in active enzyme.

  17. Targeted Discovery of Glycoside Hydrolases from a Switchgrass-Adapted Compost Community

    SciTech Connect (OSTI)

    Reddy, Amitha; Allgaier, Martin; Park, Joshua I.; Ivanoval, Natalia; Dhaeseleer, Patrik; Lowry, Steve; Sapra, Rajat; Hazen, Terry C.; Simmons, Blake A.; VanderGheynst, Jean S.; Hugenholtz, Philip

    2011-05-11

    Development of cellulosic biofuels from non-food crops is currently an area of intense research interest. Tailoring depolymerizing enzymes to particular feedstocks and pretreatment conditions is one promising avenue of research in this area. Here we added a green-waste compost inoculum to switchgrass (Panicum virgatum) and simulated thermophilic composting in a bioreactor to select for a switchgrass-adapted community and to facilitate targeted discovery of glycoside hydrolases. Smallsubunit (SSU) rRNA-based community profiles revealed that the microbial community changed dramatically between the initial and switchgrass-adapted compost (SAC) with some bacterial populations being enriched over 20-fold. We obtained 225 Mbp of 454-titanium pyrosequence data from the SAC community and conservatively identified 800 genes encoding glycoside hydrolase domains that were biased toward depolymerizing grass cell wall components. Of these, ,10percent were putative cellulasesmostly belonging to families GH5 and GH9. We synthesized two SAC GH9 genes with codon optimization for heterologous expression in Escherichia coli and observed activity for one on carboxymethyl cellulose. The active GH9 enzyme has a temperature optimum of 50uC and pH range of 5.5 to 8 consistent with the composting conditions applied. We demonstrate that microbial communities adapt to switchgrass decomposition using simulated composting condition and that full-length genes can be identified from complex metagenomic sequence data, synthesized and expressed resulting in active enzyme.

  18. Developing Switchgrass as a Bioenergy Crop

    SciTech Connect (OSTI)

    Bouton, J.; Bransby, D.; Conger, B.; McLaughlin, S.; Ocumpaugh, W.; Parrish, D.; Taliaferro, C.; Vogel, K.; Wullschleger, S.

    1998-11-08

    The utilization of energy crops produced on American farms as a source of renewable fuels is a concept with great relevance to current ecological and economic issues at both national and global scales. Development of a significant national capacity to utilize perennial forage crops, such as switchgrass (Panicum virgatum, L.) as biofuels could benefit our agricultural economy by providing an important new source of income for farmers. In addition energy production from perennial cropping systems, which are compatible with conventional fining practices, would help reduce degradation of agricultural soils, lower national dependence on foreign oil supplies, and reduce emissions of greenhouse gases and toxic pollutants to the atmosphere (McLaughlin 1998). Interestingly, on-farm energy production is a very old concept, extending back to 19th century America when both transpofiation and work on the farm were powered by approximately 27 million draft animals and fueled by 34 million hectares of grasslands (Vogel 1996). Today a new form of energy production is envisioned for some of this same acreage. The method of energy production is exactly the same - solar energy captured in photosynthesis, but the subsequent modes of energy conversion are vastly different, leading to the production of electricity, transportation fuels, and chemicals from the renewable feedstocks. While energy prices in the United States are among the cheapest in the world, the issues of high dependency on imported oil, the uncertainties of maintaining stable supplies of imported oil from finite reserves, and the environmental costs associated with mining, processing, and combusting fossil fuels have been important drivers in the search for cleaner burning fuels that can be produced and renewed from the landscape. At present biomass and bioenergy combine provide only about 4% of the total primary energy used in the U.S. (Overend 1997). By contrast, imported oil accounts for approximately 44% of the foreign trade deficit in the U.S. and about 45% of the total annual U.S. oil consumption of 34 quads (1 quad = 1015 Btu, Lynd et al. 1991). The 22 quads of oil consumed by transportation represents approximately 25% of all energy use in the US and excedes total oil imports to the US by about 50%. This oil has environmental and social costs, which go well beyond the purchase price of around $15 per barrel. Renewable energy from biomass has the potential to reduce dependency on fossil fhels, though not to totally replace them. Realizing this potential will require the simultaneous development of high yielding biomass production systems and bioconversion technologies that efficiently convert biomass energy into the forms of energy and chemicals usable by industry. The endpoint criterion for success is economic gain for both agricultural and industrial sectors at reduced environmental cost and reduced political risk. This paper reviews progress made in a program of research aimed at evaluating and developing a perennial forage crop, switchgrass as a regional bioenergy crop. We will highlight here aspects of research progress that most closely relate to the issues that will determine when and how extensively switchgrass is used in commercial bioenergy production.

  19. Effects of torrefaction and densification on switchgrass pyrolysis products

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Yang, Zixu; Sarkar, Madhura; Kumar, Ajay; Tumuluru, Jaya Shankar; Huhnke, Raymond L.

    2014-12-01

    Abstract The pyrolysis behaviors of four types of pretreated switchgrass (torrefied at 230 and 270 °C, densification, and torrefaction at 270 ºC followed by densification) were studied at three temperatures (500, 600, 700 ºC) using a pyroprobe attached to a gas chromatogram mass spectroscopy (Py-GC/MS). The torrefaction of switchgrass improved its oxygen to carbon ratio and energy content. Contents of anhydrous sugars and phenols in pyrolysis products of torrefied switchgrass were higher than those in pyrolysis products of raw switchgrass. As the torrefaction temperature increased from 230 to 270 °C, the contents of anhydrous sugars and phenols in pyrolysis productsmore » increased whereas content of guaiacols decreased. High pyrolysis temperature (600 and 700 °C as compared to 500 °C) enhanced decomposition of lignin and anhydrous sugars, leading to increase in phenols, aromatics and furans. Densification enhanced depolymerization of cellulose and hemicellulose during pyrolysis.« less

  20. Switchgrass Cultivar/Ecotype Selection and Management for Biofuels in the Upper Southeast USA

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Lemus, Rocky; Parrish, David J.; Wolf, Dale D.

    2014-01-01

    Switchgrass ( Panicum virgatum L.), a perennial warm-season grass indigenous to the eastern USA, has potential as a biofuels feedstock. The objective of this study was to investigate the performance of upland and lowland switchgrass cultivars under different environments and management treatments. Four cultivars of switchgrass were evaluated from 2000 to 2001 under two management regimes in plots established in 1992 at eight locations in the upper southeastern USA. Two management treatments included 1) a single annual harvest (in late October to early November) and a single application of 50 kg N/ha/yr and 2) two annual harvests (in midsummer andmore » November) and a split application of 100 kg N/ha/yr. Biomass yields averaged 15 Mg/ha/yr and ranged from 10 to 22 Mg/ha/yr across cultivars, managements, locations, and years. There was no yield advantage in taking two harvests of the lowland cultivars (Alamo and Kanlow). When harvested twice, upland cultivars (Cave-in-Rock and Shelter) provided yields equivalent to the lowland ecotypes. Tiller density was 36% lower in stands cutting only once per year, but the stands appeared vigorous after nine years of such management. Lowland cultivars and a one-cutting management (after the tops have senesced) using low rates of applied N (50 kg/ha) are recommended.« less

  1. Down-regulation of the Caffeic acid O-methyltransferase Gene in Switchgrass Reveals a Novel Monolignol Analog

    SciTech Connect (OSTI)

    Tschaplinski, Timothy J; Standaert, Robert F; Engle, Nancy L; Martin, Madhavi Z; Sangha, Amandeep K; Parks, Jerry M; Smith, Jeremy C; Samuel, Reichel; Pu, Yunqiao; Ragauskas, A J; Hamilton, Choo Yieng; Fu, Chunxiang; Wang, Zeng-Yu; Davison, Brian H; Dixon, Richard A; Mielenz, Jonathan R

    2012-01-01

    Down-regulation of the caffeic acid 3-O-methyltransferase (COMT) gene in the lignin biosynthetic pathway of switchgrass (Panicum virgatum) resulted in cell walls of transgenic plants releasing more constituent sugars after pretreatment by dilute acid and treatment with glycosyl hydrolases from an added enzyme preparation and from Clostridium thermocellum. Fermentation of both wild-type and transgenic switchgrass after milder hot water pretreatment with no water washing showed that only the transgenic switchgrass inhibited C. thermocellum. Gas chromatography-mass spectrometry-based metabolomics were undertaken on cell wall aqueous extracts to determine the nature of the microbial inhibitors, confirming the increased concentration of a number of phenolic acids and aldehydes that are known inhibitors of fermentation. Metabolomic analyses of the transgenic biomass additionally revealed the presence of a novel monolignol-like metabolite, identified as trans-3, 4-dimethoxy-5-hydroxycinnamyl alcohol (iso-sinapyl alcohol) in both non-pretreated, as well as hot water pretreated samples. Although there was no indication that iso-sinapyl alcohol was integrated into the cell wall, diversion of substrates from sinapyl alcohol to free iso-sinapyl alcohol, its glucoside, and associated upstream lignin pathway changes, including increased phenolic aldehydes and acids, are associated with more facile cell wall deconstruction, and to the observed inhibitory effect on microbial growth.

  2. Global Simulation of Bioenergy Crop Productivity: Analytical framework and Case Study for Switchgrass

    SciTech Connect (OSTI)

    Nair, S. Surendran; Nichols, Jeff A. {Cyber Sciences}; Post, Wilfred M; Wang, Dali; Wullschleger, Stan D; Kline, Keith L; Wei, Yaxing; Singh, Nagendra; Kang, Shujiang

    2014-01-01

    Contemporary global assessments of the deployment potential and sustainability aspects of biofuel crops lack quantitative details. This paper describes an analytical framework capable of meeting the challenges associated with global scale agro-ecosystem modeling. We designed a modeling platform for bioenergy crops, consisting of five major components: (i) standardized global natural resources and management data sets, (ii) global simulation unit and management scenarios, (iii) model calibration and validation, (iv) high-performance computing (HPC) modeling, and (v) simulation output processing and analysis. A case study with the HPC- Environmental Policy Integrated Climate model (HPC-EPIC) to simulate a perennial bioenergy crop, switchgrass (Panicum virgatum L.) and global biomass feedstock analysis on grassland demonstrates the application of this platform. The results illustrate biomass feedstock variability of switchgrass and provide insights on how the modeling platform can be expanded to better assess sustainable production criteria and other biomass crops. Feedstock potentials on global grasslands and within different countries are also shown. Future efforts involve developing databases of productivity, implementing global simulations for other bioenergy crops (e.g. miscanthus, energycane and agave), and assessing environmental impacts under various management regimes. We anticipated this platform will provide an exemplary tool and assessment data for international communities to conduct global analysis of biofuel biomass feedstocks and sustainability.

  3. Logs Wood Chips Straw Corn Switchgrass

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    in wind can make electricity. Bioenergy comes from plants we can turn into fuel. Logs Wood Chips Straw Corn Switchgrass We can use energy from the earth to heat and cool our...

  4. THE HUNT FOR GREEN EVERY APRIL: FACTORS AFFECTING FITNESS IN SWITCHGRASS

    SciTech Connect (OSTI)

    Sarath, Gautam

    2014-12-10

    This grant funded work was undertaken to develop fundamental biological knowledge of the factors affecting the complex plant trait fitness in switchgrass (Panicum virgatum L.), a plant being developed as a biomass crop. Using a diverse range of latitudinally-adapted switchgrass plants, genomic, molecular and physiological studies were performed to track a number of different aspects of plant genetics and physiology over the course of the growing season. Work was performed on both genetically unrelated and genetically related plants. Plants were established in the field from seedlings raised in a greenhouse, or from clones present in other field nurseries. Field grown plants were used as the source of all tissues. The three objectives of this proposal were:(1) Transcript Profiling, Metabolomics, and C and N Partitioning and Recycling in Crowns and Rhizomes of Switchgrass over two growing seasons; (2) Gene Profiling During Regreening and Dormancy of Bulked Segregants; (3) Extent of Linkage Disequilibrium in Populations for Adaptation and Fitness Traits Being Developed for Central and Northern USA, that Show Significant Heterosis. Objective 1 results: Plants were labeled using 13CO2 (a stable isotope) using an acrylic chamber constructed specifically for this purpose. Plants became labeled with 13C and label decayed in aerial tissues over the course of the growing season. Varying amounts of 13C were recovered in the rhizomes. These data are being analyzed. Plants were also labeled with 15N-urea. Plants absorbed significant amounts of label that was remobilized to the growing shoots. N-dynamics would suggest that a portion of the 15N absorbed into the crowns and rhizomes is sequestered below ground. Variable amounts of 15N were translocated from the shoots to the roots over the course of the growing season. Polar metabolites extracted from a diverse array of rhizomes were analyzed using GCMS. Data indicated that there was a significant shift in metabolite pools over the course of the growing season, and differences in the levels of specific metabolites could be linked to the progression of dormancy. Several metabolites that accumulate in dormant rhizomes were identified. Some of these metabolites could be potentially linked to winter-survival of switchgrass. Extensive high-throughput sequencing was conducted on crown and rhizome samples collected from field grown plants. Initial work was performed on a Roche 454 system. All later work was performed on an Illumina sequencing-by-synthesis system. Some of these datasets have been published as peer-reviewed papers, other data are currently being analyzed and being readied for publication. Objective 2 results: Genetically related but phenotypically divergent plants from an octaploid switchgrass population were grown in a replicated field nursery. Rhizomes were harvested at four different times over the course of the growing season from plants with high winter survival and those with lower winter survival. RNA-Seq was performed on harvested materials. Initial analysis suggests that plants with lowered winter survival experience a greater level of cellular stress in dormant tissues. This aspect of plant function is being probed in greater depth. Objective 3 results: A total of 592 individual clones with three clonal replications in a randomized complete block design from each of five populations used in Objective 1 studies were rated for heading date in 2012 and 2014, green-up day of year in 2013, anthesis date in 2012, and yield in 2012, they were also subjected to NIR spectroscopy to derive cell wall composition estimates based on prior NIR calibrations. Plants were genotyped via a genotyping by sequencing (GBS) approach from reduced representation libraries constructed with adaptors that identified each individual. Libraries generated with the restriction enzyme PstI and called SNPs using Samtools after alignment to version 1.1 of the switchgrass genome sequence. A total of approximately 40,000 SNPs were found. These were then further filtered to eliminate markers with a m

  5. Sandia Energy - JBEI Researchers Splice Corn Gene into Switchgrass...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Plant Cell Wall Starch by 250% Switchgrass is a promising prospect for advanced biofuels because it grows rapidly on marginal agricultural land without fertilizers or other...

  6. Developing a low input and sustainable switchgrass feedstock production

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    system utilizing beneficial bacterial endophytes | Department of Energy Developing a low input and sustainable switchgrass feedstock production system utilizing beneficial bacterial endophytes Developing a low input and sustainable switchgrass feedstock production system utilizing beneficial bacterial endophytes Dr. Chuansheng Mei gave this presentation at the Symbiosis Conference. PDF icon symbiosis_conference_mei.pdf More Documents & Publications Symbiosis Biofeedstock Conference:

  7. Production of Deuterated Switchgrass by Hydroponic Cultivation

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Evans, Barbara R; Bali, Garima; Foston, Marcus B; Ragauskas, Arthur J; O'Neill, Hugh Michael; Shah, Riddhi S; McGaughey, Joseph; Reeves, David T; Rempe, Caroline S; Davison, Brian H

    2015-01-01

    Deuterium enrichment of biological materials can potential enable expanded experimental use of small angle neutron scattering (SANS) to investigate molecular structural transitions of complex systems such as plant cell walls. Two key advances have been made that facilitate cultivation of switchgrass, an important forage and biofuel crop, for controlled isotopic enrichment: (1) perfusion system with individual chambers and (2) hydroponic growth from tiller cuttings. Plants were grown and maintained for several months with periodic harvest. Photosynthetic activity was monitored by measurement of CO2 in outflow from the growth chambers. Plant morphology and composition appeared normal compared to matched controls grownmore » with H2O. Using this improved method, gram quantities of switchgrass leaves and stems were produced by continuous hydroponic cultivation using growth medium consisting of basal mineral salts in 50% D2O. Deuterium incorporation was confirmed by detection of the O-D and C-D stretching peaks with FTIR and quantified by 1H- and 2H-NMR. This capability to produce deuterated lignocellulosic biomass under controlled conditions will enhance investigation of cell wall structure and its deconstruction by neutron scattering and NMR techniques.« less

  8. Production of Deuterated Switchgrass by Hydroponic Cultivation

    SciTech Connect (OSTI)

    Evans, Barbara R; Bali, Garima; Foston, Marcus B; Ragauskas, Arthur J; O'Neill, Hugh Michael; Shah, Riddhi S; McGaughey, Joseph; Reeves, David T; Rempe, Caroline S; Davison, Brian H

    2015-01-01

    Deuterium enrichment of biological materials can potential enable expanded experimental use of small angle neutron scattering (SANS) to investigate molecular structural transitions of complex systems such as plant cell walls. Two key advances have been made that facilitate cultivation of switchgrass, an important forage and biofuel crop, for controlled isotopic enrichment: (1) perfusion system with individual chambers and (2) hydroponic growth from tiller cuttings. Plants were grown and maintained for several months with periodic harvest. Photosynthetic activity was monitored by measurement of CO2 in outflow from the growth chambers. Plant morphology and composition appeared normal compared to matched controls grown with H2O. Using this improved method, gram quantities of switchgrass leaves and stems were produced by continuous hydroponic cultivation using growth medium consisting of basal mineral salts in 50% D2O. Deuterium incorporation was confirmed by detection of the O-D and C-D stretching peaks with FTIR and quantified by 1H- and 2H-NMR. This capability to produce deuterated lignocellulosic biomass under controlled conditions will enhance investigation of cell wall structure and its deconstruction by neutron scattering and NMR techniques.

  9. Making Biofuel From Corncobs and Switchgrass in Rural America | Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Energy Biofuel From Corncobs and Switchgrass in Rural America Making Biofuel From Corncobs and Switchgrass in Rural America June 11, 2010 - 4:48pm Addthis DuPont Danisco Cellulosic Ethanol (DDCE) opened a new biorefinery in Vonore, Tenn., last year. | Photo courtesy of DDCE DuPont Danisco Cellulosic Ethanol (DDCE) opened a new biorefinery in Vonore, Tenn., last year. | Photo courtesy of DDCE Lindsay Gsell Energy crops and agricultural residue, like corncobs and stover, are becoming part

  10. Developmental Control of Lignification in Stems of Lowland Switchgrass

    Office of Scientific and Technical Information (OSTI)

    Variety Alamo and the Effects on Saccharification Efficiency (Journal Article) | SciTech Connect Developmental Control of Lignification in Stems of Lowland Switchgrass Variety Alamo and the Effects on Saccharification Efficiency Citation Details In-Document Search Title: Developmental Control of Lignification in Stems of Lowland Switchgrass Variety Alamo and the Effects on Saccharification Efficiency Authors: Hui,Shen ; Chunxiang,Fu ; Xirong,Xiao ; Tui,Ray ; Yuhong,Tang ; Zengyu,Wang ;

  11. Do yield and quality of big bluestem and switchgrass feedstock decline over winter?

    SciTech Connect (OSTI)

    Jane M.F. Johnson; Garold L. Gresham

    2014-03-01

    Switchgrass (Panicum virgatum L.) and big bluestem (Andropogon gerdardii Vitman) are potential perennial bioenergy feedstocks. Feedstock storage limitations, labor constraints for harvest, and environmental benefits provided by perennials are rationales for developing localized perennial feedstock as an alternative or in conjunction with annual feedstocks (i.e., crop residues). Little information is available on yield, mineral, and thermochemical properties of native species as related to harvest time. The studys objectives were to compare the feedstock quantity and quality between grasses harvested in the fall or the following spring. It was hypothesized that biomass yield may decline, but translocation and/or leaching of minerals from the feedstock would improve feedstock quality. Feedstock yield did not differ by crop, harvest time, or their interactions. Both grasses averaged 6.0 Mg ha-1 (fall) and 5.4 Mg ha-1 (spring) with similar high heating value (17.7 MJ kg-1). The K/(Ca + Mg) ratio, used as a quality indicator declined to below a 0.5 threshold, but energy yield (Megajoule per kilogram) decreased 13% by delaying harvest until spring. Only once during the four study-years were conditions ideal for early spring harvest, in contrast during another spring, very muddy conditions resulted in excessive soil contamination. Early spring harvest may be hampered by late snow, lodging, and muddy conditions that may delay or prevent harvest, and result in soil contamination of the feedstock. However, reducing slagging/fouling potential and the mass of mineral nutrients removed from the field without a dramatic loss in biomass or caloric content are reasons to delay harvest until spring.

  12. Switchgrass as a High-Potential Energy Crop | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Switchgrass as a High-Potential Energy Crop Switchgrass as a High-Potential Energy Crop Historical Perspective on How and Why Switchgrass was Selected as a "Model" High-Potential Energy Crop PDF icon ornl_switchgrass.pdf More Documents & Publications 2015 Peer Review Presentations-Terrestrial Feedstocks Biomass Econ 101: Measuring the Technological Improvements on Feedstocks Costs 2015 Peer Review Presentations-Sustainability and Strategic Analysis

  13. Abstract2007

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Home Registration Abstract Submission Proceedings Manuscript Review Conference Schedule Poster Session Satellite Workshops Conference Committee Accommodations Vendors Travel tips Local Attractions SRI Poster download Contact information Photo Gallery Manuscript Submission Abstract Submission Abstracts are due by January 12, 2007(Deadline extended to January 19, 2007 for poster submission only). Abstract should be text only and written in good English. No figures, images, equations and special

  14. Error abstractions

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Error and fault abstractions Mattan Erez UT Austin *Who should care about faults and errors? *Ideally, only system cares about masked faults? - Assuming application bugs are not...

  15. Switchgrass as a High-Potential Energy Crop

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    7/109 Historical Perspective on How and Why Switchgrass was Selected as a "Model" High-Potential Energy Crop July 2007 Prepared by Lynn Wright Consultant to Bioenergy Resources and Engineering Systems Environmental Sciences Division DOCUMENT AVAILABILITY Reports produced after January 1, 1996, are generally available free via the U.S. Department of Energy (DOE) Information Bridge. Web site http://www.osti.gov/bridge Reports produced before January 1, 1996, may be purchased by members

  16. Research and Technology Development for Genetic Improvement of Switchgrass

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Bioenergy Technologies Office (BETO) Project Peer Review Research and Technology Development for Genetic Improvement of Switchgrass Albert Kausch and Richard Rhodes, University of Rhode Island Award # DE-FG-36-08GO88070 Date: March 24, 2015 Technology Area Review: Feedstock Supply & Logistics Principal Investigator: Albert Kausch Organization: University of Rhode Island This presentation does not contain any proprietary, confidential, or otherwise restricted information Goal Statement Long

  17. Consolidated bioprocessing of transgenic switchgrass by an engineered and evolved Clostridium thermocellum strain

    SciTech Connect (OSTI)

    Yee, Kelsey L; Rodriguez Jr, Miguel; Thompson, Olivia A; Fu, Chunxiang; Wang, Zeng-Yu; Davison, Brian H; Mielenz, Jonathan R

    2014-01-01

    Background: Switchgrass is an abundant and dedicated bioenergy feedstock however its inherent recalcitrance is one of the economic hurdles for producing biofuels. The down-regulation of the caffeic acid O-methyl transferase (COMT) gene in the lignin pathway of switchgrass reduced lignin content and S/G ratio, and the transgenic lines showed improved fermentation yield with S. cerevisiae and C. thermocellum (ATCC 27405) in comparison to the wild-type switchgrass. Results: Here we examine the fermentation potential of the COMT transgenic switchgrass and its wild-type line, with an engineered and evolved Clostridium thermocellum (M1570) strain. The fermentation of the transgenic switchgrass had superior conversion relative to the control line with an increase of 20% and ethanol was the primary metabolite accounting for 90% of the total metabolites measured by HPLC. Conclusions: The down-regulation of the COMT gene in switchgrass reduced recalcitrance and improved microbial bioconversion yield. Moreover, these results showed ethanol as the main fermentation metabolite produced by an engineered and evolved C. thermocellum strain grown on a transgenic switchgrass.

  18. Amber Waves of...Switchgrass? How about Sorghum? | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Amber Waves of...Switchgrass? How about Sorghum? Amber Waves of...Switchgrass? How about Sorghum? October 28, 2011 - 5:09pm Addthis Matthew Loveless Matthew Loveless Data Integration Specialist, Office of Public Affairs What does this mean for me? For many counties, the expanding market for energy products made from biomass is a potential source of economic growth. Is your county one of them? As the fall harvest comes to an end in Marshall County, Kansas, farmers are already planning what crops

  19. Historical Perspective on How and Why Switchgrass was Seleced as a "Model" High-Potential Energy Crop

    SciTech Connect (OSTI)

    Wright, Lynn

    2007-07-01

    Economic and environmental assessments by Oak Ridge National Laboratorys Biofuels Feedstock Development Program staff together with the screening project results, and funding limitations lead to making the decision to further develop only switchgrass as a model or prototype species in about 1990. This paper describes the conditions under which the herbaceous species were screened, summarizes results from those trials, discusses the various factors which influenced the selection of switchgrass, and provides a brief evaluation of switchgrass with respect to criteria that should be considered when selecting and developing a crop for biofuels and bioproducts.

  20. SSRL30 Abstracts

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    abstracts highlighting research activities conducted over the past year at SSRL for oral and poster presentations at the Users' Meeting. Please use the abstract submission form...

  1. Understanding Mineral Transport in Switchgrass | U.S. DOE Office of Science

    Office of Science (SC) Website

    (SC) Understanding Mineral Transport in Switchgrass Biological and Environmental Research (BER) BER Home About Research Facilities Science Highlights Searchable Archive of BER Highlights External link Benefits of BER Funding Opportunities Biological & Environmental Research Advisory Committee (BERAC) Community Resources Contact Information Biological and Environmental Research U.S. Department of Energy SC-23/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301)

  2. Microbe Produces Ethanol from Switchgrass Without Pretreatment | U.S. DOE

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Office of Science (SC) Microbe Produces Ethanol from Switchgrass Without Pretreatment Biological and Environmental Research (BER) BER Home About Research Facilities Science Highlights Searchable Archive of BER Highlights External link Benefits of BER Funding Opportunities Biological & Environmental Research Advisory Committee (BERAC) Community Resources Contact Information Biological and Environmental Research U.S. Department of Energy SC-23/Germantown Building 1000 Independence Ave., SW

  3. SSRL28 Abstract Submission

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Visitor Info General Info Need more information? Contact: Cathy Knotts Manager, URA SSRL, MS 99 2575 Sand Hill Road Menlo Park, CA 94025 28th Annual Stanford Synchrotron Radiation Laboratory Users' Meeting Menlo Park, California USA October 17-19, 2001 Oral Abstract Submissions - Due August 24 Poster Abstract Submissions - Due September 28 Users are invited to submit abstracts highlighting research activities conducted over the past year at SSRL for poster presentations at the Users' Meeting.

  4. Community dynamics and glycoside hydrolase activities of thermophilic bacterial consortia adapted to switchgrass

    SciTech Connect (OSTI)

    Gladden, J.M.; Allgaier, M.; Miller, C.S.; Hazen, T.C.; VanderGheynst, J.S.; Hugenholtz, P.; Simmons, B.A.; Singer, S.W.

    2011-05-01

    Industrial-scale biofuel production requires robust enzymatic cocktails to produce fermentable sugars from lignocellulosic biomass. Thermophilic bacterial consortia are a potential source of cellulases and hemicellulases adapted to harsher reaction conditions than commercial fungal enzymes. Compost-derived microbial consortia were adapted to switchgrass at 60 C to develop thermophilic biomass-degrading consortia for detailed studies. Microbial community analysis using small-subunit rRNA gene amplicon pyrosequencing and short-read metagenomic sequencing demonstrated that thermophilic adaptation to switchgrass resulted in low-diversity bacterial consortia with a high abundance of bacteria related to thermophilic paenibacilli, Rhodothermus marinus, and Thermus thermophilus. At lower abundance, thermophilic Chloroflexi and an uncultivated lineage of the Gemmatimonadetes phylum were observed. Supernatants isolated from these consortia had high levels of xylanase and endoglucanase activities. Compared to commercial enzyme preparations, the endoglucanase enzymes had a higher thermotolerance and were more stable in the presence of 1-ethyl-3-methylimidazolium acetate ([C2mim][OAc]), an ionic liquid used for biomass pretreatment. The supernatants were used to saccharify [C2mim][OAc]-pretreated switchgrass at elevated temperatures (up to 80 C), demonstrating that these consortia are an excellent source of enzymes for the development of enzymatic cocktails tailored to more extreme reaction conditions.

  5. BEMS: Abstract book

    SciTech Connect (OSTI)

    1995-06-01

    This volume provides abstracts of presentations made at the Sixteenth Meeting of The Bioelectromagnetics Society held June 12-17, 1994 in Copenhagen, Denmark.

  6. SSRL29 Abstract Form

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    abstracts highlighting research activities conducted over the past year at SSRL for oral or poster presentation at the meeting. Posters will be displayed throughout the meeting...

  7. penionzhkevich_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Russian Federation Abstract: This talk is an attempt to present some problems on the evolution of the Universe: the nucleosynthesis and cosmochronology from the standpoint of...

  8. Abstract Submission Process

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Abstract Submission Process Focusing on methods and computational tools used to help sequence, assemble, and finish genomes, including new sequencing technologies. Contact Shannon...

  9. Abstracts of contributed papers

    SciTech Connect (OSTI)

    Not Available

    1994-08-01

    This volume contains 571 abstracts of contributed papers to be presented during the Twelfth US National Congress of Applied Mechanics. Abstracts are arranged in the order in which they fall in the program -- the main sessions are listed chronologically in the Table of Contents. The Author Index is in alphabetical order and lists each paper number (matching the schedule in the Final Program) with its corresponding page number in the book.

  10. Thyra Abstract Interface Package

    Energy Science and Technology Software Center (OSTI)

    2005-09-01

    Thrya primarily defines a set of abstract C++ class interfaces needed for the development of abstract numerical atgorithms (ANAs) such as iterative linear solvers, transient solvers all the way up to optimization. At the foundation of these interfaces are abstract C++ classes for vectors, vector spaces, linear operators and multi-vectors. Also included in the Thyra package is C++ code for creating concrete vector, vector space, linear operator, and multi-vector subclasses as well as other utilitiesmore » to aid in the development of ANAs. Currently, very general and efficient concrete subclass implementations exist for serial and SPMD in-core vectors and multi-vectors. Code also currently exists for testing objects and providing composite objects such as product vectors.« less

  11. Online Abstracts and Reports

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Wind Energy/Resources/Wind Energy Publications/Online Abstracts and Reports - Online Abstracts and ReportsTara Camacho-Lopez2015-05-14T14:49:39+00:00 Active Aero Blade Load Control Design [Report] (2771KB PDF) "SMART Wind Turbine Rotor: Data Analysis and Conclusions" J.C. Berg, M. F. Barone, N. C. Yoder January 2014 [intlink id="2916" type="page"] Back to Topic Selection[/intlink] [intlink id="3057" type="page" anchor="TOP"]Top of

  12. Historical Perspective on How and Why Switchgrass was Selected as a "Model" High-Potential Energy Crop

    SciTech Connect (OSTI)

    Wright, Lynn L

    2007-11-01

    A review of several publications of the Biofuels Feedstock Development Program, and final reports from the herbaceous crop screening trials suggests that there were several technical and non-technical factors that influenced the decision to focus on one herbaceous "model" crop species. The screening trials funded by the U.S. Department of Energy in the late 1980's to early 1990's assessed a wide range of about 34 species with trials being conducted on a wide range of soil types in 31 different sites spread over seven states in crop producing regions of the U.S. While several species, including sorghums, reed canarygrass and other crops, were identified as having merit for further development, the majority of institutions involved in the herbaceous species screening studies identified switchgrass as having high priority for further development. Six of the seven institutions included switchgrass among the species recommended for further development in their region and all institutions recommended that perennial grasses be given high research priority. Reasons for the selection of switchgrass included the demonstration of relatively high, reliable productivity across a wide geographical range, suitability for marginal quality land, low water and nutrient requirements, and positive environmental attributes. Economic and environmental assessments by Oak Ridge National Laboratory's Biofuels Feedstock Development Program staff together with the screening project results, and funding limitations lead to making the decision to further develop only switchgrass as a "model" or "prototype" species in about 1990. This paper describes the conditions under which the herbaceous species were screened, summarizes results from those trials, discusses the various factors which influenced the selection of switchgrass, and provides a brief evaluation of switchgrass with respect to criteria that should be considered when selecting and developing a crop for biofuels and bioproducts.

  13. abstract-hope

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Parallelization of the TRANSIMS Microsimulator - design, development, and performance Michael Hope Transportation Research and Analysis Computing Center Argonne National Laboratory List of Authors ================ Michael Hope Transportation Research and Analysis Computing Center Argonne National Laboratory 277 International Drive West Chicago, IL 60185 Abstract ========= The original TRANSIMS Microsimulator was designed as a purely parallel program. As desktop machine performance grew by leaps

  14. Seismic Consequence Abstraction

    SciTech Connect (OSTI)

    M. Gross

    2004-10-25

    The primary purpose of this model report is to develop abstractions for the response of engineered barrier system (EBS) components to seismic hazards at a geologic repository at Yucca Mountain, Nevada, and to define the methodology for using these abstractions in a seismic scenario class for the Total System Performance Assessment - License Application (TSPA-LA). A secondary purpose of this model report is to provide information for criticality studies related to seismic hazards. The seismic hazards addressed herein are vibratory ground motion, fault displacement, and rockfall due to ground motion. The EBS components are the drip shield, the waste package, and the fuel cladding. The requirements for development of the abstractions and the associated algorithms for the seismic scenario class are defined in ''Technical Work Plan For: Regulatory Integration Modeling of Drift Degradation, Waste Package and Drip Shield Vibratory Motion and Seismic Consequences'' (BSC 2004 [DIRS 171520]). The development of these abstractions will provide a more complete representation of flow into and transport from the EBS under disruptive events. The results from this development will also address portions of integrated subissue ENG2, Mechanical Disruption of Engineered Barriers, including the acceptance criteria for this subissue defined in Section 2.2.1.3.2.3 of the ''Yucca Mountain Review Plan, Final Report'' (NRC 2003 [DIRS 163274]).

  15. NREL Teams with Navy, Private Industry to Make Jet Fuel from Switchgrass -

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    News Releases | NREL NREL Teams with Navy, Private Industry to Make Jet Fuel from Switchgrass Project could spur jobs in rural America, lead to less reliance of foreign oil June 6, 2013 The Energy Department's National Renewable Energy Laboratory (NREL) is partnering with Cobalt Technologies, U.S. Navy, and Show Me Energy Cooperative to demonstrate that jet fuel can be made economically and in large quantities from a renewable biomass feedstock such as switch grass. "This can be an

  16. abstract-hope2

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    visualizations - TransVis capabilities and usage Michael Hope Transportation Research and Analysis Computing Center Argonne National Laboratory List of Authors ================ Michael Hope Transportation Research and Analysis Computing Center Argonne National Laboratory 277 International Drive West Chicago, IL 60185 Abstract ========= TRANSIMS is an extremely powerful software package in terms of both the breadth and depth of its analysis. However, there has been relatively little development

  17. abstract-ley

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    User Interfaces - TRANSIMS Studio and the RTE Run Time Environment Hubert Ley Transportation Research and Analysis Computing Center Argonne National Laboratory List of Authors ================ Hubert Ley Transportation Research and Analysis Computing Center Argonne National Laboratory 277 International Drive West Chicago, IL 60185 Abstract ========= TRACC has been tasked by USDOT to advance the use of TRANSIMS by providing computing resources and expertise to the US transportation modeling

  18. abstract-moraga

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Simulation of building evacuation exit rates for TRANSIMS Reinaldo Moraga Department of Industrial and Systems Engineering Northern Illinois University 590 Garden Road DeKalb, IL 60115-2854 (815) 753-1442 List of Authors ================ Reinaldo Moraga Department of Industrial and Systems Engineering Northern Illinois University Abstract ========= This presentation deals with the topic of building evacuation modeling for TRANSIMS large scale simulation models in major metropolitan cities. The

  19. abstract-oh

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Application of TRANSIMS for Highway Work Zones: Travel Pattern and Mobility Impacts Jun-Seok Oh List of Authors ================ Jun-Seok Oh Associate Professor Western Michigan University Kalamazoo, MI 49008-5316 Phone: (269) 276-3216 FAX: (269) 276-3211 Email: This email address is being protected from spambots. You need JavaScript enabled to view it. Abstract ========= This project applies TRANSIMS to highway work zones analysis with emphasis on travel pattern changes and work-zone mobility

  20. mosby_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Neutron capture by any means necessary Dr. Shea Mosby Nuclear Astrophysics and Structure, Los Alamos National Laboratory, Los Alamos, NM Abstract: Knowledge of nuclear reactions in general, and neutron capture cross sections in particular, are necessary to understand both heavy element nucleosynthesis and applications in nuclear energy and defense. While many nuclei of interest lie on or near the valley of stability and can be studied directly, many more are beyond the reach of any direct

  1. abstract-kerenyi

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Use of TRANSIMS to Analyze Large-Scale Land-Use Changes: Status Update John Kerenyi City of Moreno Valley 14177 Frederick St P.O. Box 88005 Moreno Valley, CA 92553 (951) 413-3199 This email address is being protected from spambots. You need JavaScript enabled to view it. List of Authors ================ John Kerenyi Abstract ========= In 2008 the City of Moreno Valley was awarded a contract to develop a TRANSIMS traffic model of the Southern California region based on the current (2004) MPO's

  2. ko_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Charged pion ratio in heavy ion collisions as a probe of the nuclear symmetry energy a t h igh d ensity Abstract: K nowledge o n t he d ensity d ependence o f n uclear s ymmetry e nergy, w hich is a measure of the change in the binding energy of a nucleus when a proton is converted to a neutron, is important for understanding the structure of rare isotopes o f l arge n eutron o r p roton e xcess a nd m any i ssues i n n uclear a strophysics. Collisions between neutron---rich nuclei provide the

  3. prakash_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Cyclotron Colloquium on Friday, April 18, 2014, at 11:00 am in Room 300 Refreshments will be served at 10:45 am Title: The neutron star in Cassiopeia A and what it is telling us? Professor Madappa Prakash Ohio University Athens, Ohio, USA Abstract: The neutron star in Cassiopeia A (Cas A) is now 333 years old and is the youngest known star from which thermal emission for over a decade has been observed. Initial reports from the analysis of archival data indicated Cas A's surface temperature to

  4. EBS Radionuclide Transport Abstraction

    SciTech Connect (OSTI)

    J.D. Schreiber

    2005-08-25

    The purpose of this report is to develop and analyze the engineered barrier system (EBS) radionuclide transport abstraction model, consistent with Level I and Level II model validation, as identified in ''Technical Work Plan for: Near-Field Environment and Transport: Engineered Barrier System: Radionuclide Transport Abstraction Model Report Integration'' (BSC 2005 [DIRS 173617]). The EBS radionuclide transport abstraction (or EBS RT Abstraction) is the conceptual model used in the total system performance assessment for the license application (TSPA-LA) to determine the rate of radionuclide releases from the EBS to the unsaturated zone (UZ). The EBS RT Abstraction conceptual model consists of two main components: a flow model and a transport model. Both models are developed mathematically from first principles in order to show explicitly what assumptions, simplifications, and approximations are incorporated into the models used in the TSPA-LA. The flow model defines the pathways for water flow in the EBS and specifies how the flow rate is computed in each pathway. Input to this model includes the seepage flux into a drift. The seepage flux is potentially split by the drip shield, with some (or all) of the flux being diverted by the drip shield and some passing through breaches in the drip shield that might result from corrosion or seismic damage. The flux through drip shield breaches is potentially split by the waste package, with some (or all) of the flux being diverted by the waste package and some passing through waste package breaches that might result from corrosion or seismic damage. Neither the drip shield nor the waste package survives an igneous intrusion, so the flux splitting submodel is not used in the igneous scenario class. The flow model is validated in an independent model validation technical review. The drip shield and waste package flux splitting algorithms are developed and validated using experimental data. The transport model considers advective transport and diffusive transport from a breached waste package. Advective transport occurs when radionuclides that are dissolved or sorbed onto colloids (or both) are carried from the waste package by the portion of the seepage flux that passes through waste package breaches. Diffusive transport occurs as a result of a gradient in radionuclide concentration and may take place while advective transport is also occurring, as well as when no advective transport is occurring. Diffusive transport is addressed in detail because it is the sole means of transport when there is no flow through a waste package, which may dominate during the regulatory compliance period in the nominal and seismic scenarios. The advective transport rate, when it occurs, is generally greater than the diffusive transport rate. Colloid-facilitated advective and diffusive transport is also modeled and is presented in detail in Appendix B of this report.

  5. Life Cycle Assessment of Switchgrass Cellulosic Ethanol Production in the Wisconsin and Michigan Agricultural Contexts

    SciTech Connect (OSTI)

    Sinistore, Julie C.; Reinemann, D. J.; Izaurralde, Roberto C.; Cronin, Keith R.; Meier, Paul J.; Runge, Troy M.; Zhang, Xuesong

    2015-04-25

    Spatial variability in yields and greenhouse gas emissions from soils has been identified as a key source of variability in life cycle assessments (LCAs) of agricultural products such as cellulosic ethanol. This study aims to conduct an LCA of cellulosic ethanol production from switchgrass in a way that captures this spatial variability and tests results for sensitivity to using spatially averaged results. The Environment Policy Integrated Climate (EPIC) model was used to calculate switchgrass yields, greenhouse gas (GHG) emissions, and nitrogen and phosphorus emissions from crop production in southern Wisconsin and Michigan at the watershed scale. These data were combined with cellulosic ethanol production data via ammonia fiber expansion and dilute acid pretreatment methods and region-specific electricity production data into an LCA model of eight ethanol production scenarios. Standard deviations from the spatial mean yields and soil emissions were used to test the sensitivity of net energy ratio, global warming potential intensity, and eutrophication and acidification potential metrics to spatial variability. Substantial variation in the eutrophication potential was also observed when nitrogen and phosphorus emissions from soils were varied. This work illustrates the need for spatially explicit agricultural production data in the LCA of biofuels and other agricultural products.

  6. A National Assessment of Promising Areas for Switchgrass, Hybrid Poplar, or Willow Energy Crop Production

    SciTech Connect (OSTI)

    Graham, R.L.; Walsh, M.E.

    1999-02-01

    The objective of this paper is to systematically assess the cropland acreage that could support energy crops and the expected farm gate and delivered prices of energy crops. The assessment is based on output from two modeling approaches: (1) the Oak Ridge County-Level Energy Crop (ORECCL) database (1996 version) and (2) the Oak Ridge Integrated Bioenergy Analysis System (ORIBAS). The former provides county-level estimates of suitable acres, yields, and farmgate prices of energy crops (switchgrass, hybrid poplar, willow) for all fifty states. The latter estimates delivered feedstock prices and quantities within a state at a fine resolution (1 km2) and considers the interplay between transportation costs, farmgate prices, cropland density, and facility demand. It can be used to look at any type of feedstock given the appropriate input parameters. For the purposes of this assessment, ORIBAS has been used to estimate farmgate and delivered switchgrass prices in 11 states (AL, FL, GA, IA, M N, MO, ND, NE, SC, SD, and TN). Because the potential for energy crop production can be considered from several perspectives, and is evolving as policies, economics and our basic understanding of energy crop yields and production costs change, this assessment should be viewed as a snapshot in time.

  7. Development of a Low Input and sustainable Switchgrass Feedstock Production System Utilizing Beneficial Bacterial Endophytes

    SciTech Connect (OSTI)

    Mei, Chuansheng; Nowak, Jerzy; Seiler, John

    2014-10-24

    Switchgrass represents a promising feedstock crop for US energy sustainability. However, its broad utilization for bioenergy requires improvements of biomass yields and stress tolerance. In this DOE funded project, we have been working on harnessing beneficial bacterial endophytes to enhance switchgrass performance and to develop a low input feedstock production system for marginal lands that do not compete with the production of food crops. We have demonstrated that one of most promising plant growth-promoting bacterial endophytes, Burkholderia phytofirmans strain PsJN, is able to colonize roots and significantly promote growth of switchgrass cv. Alamo under in vitro, growth chamber, greenhouse, as well as field conditions. Furthermore, PsJN bacterization improved growth and development of switchgrass seedlings, significantly stimulated plant root and shoot growth, and tiller number in the field, and enhanced biomass accumulation on both poor (p<0.001) and rich (p<0.05) soils, with more effective stimulation of plant growth in low fertility soil. Plant physiology measurements showed that PsJN inoculated Alamo had consistently lower transpiration, lower stomatal conductance, and higher water use efficiency in greenhouse conditions. These physiological changes may significantly contribute to the recorded growth enhancement. PsJN inoculation rapidly results in an increase in photosynthetic rates which contributes to the advanced growth and development. Some evidence suggests that this initial growth advantage decreases with time when resources are not limited such as in greenhouse studies. Additionally, better drought resistance and drought hardening were observed in PsJN inoculated switchgrass. Using the DOE-funded switchgrass EST microarray, in a collaboration with the Genomics Core Facility at the Noble Foundation, we have determined gene expression profile changes in both responsive switchgrass cv. Alamo and non-responsive cv. Cave-in-Rock (CR) following PsJN bacterization. With the MapMan software to analyze microarray data, the number of up- and down-regulated probes was calculated. The number of up-regulated probes in Alamo was 26, 14, 14, and 12% at 0.5, 2, 4 and 8 days after inoculation (DAI) with PsJN, respectively while the corresponding number in CR was 24, 22, 21, and 19%, respectively. In both cultivars, the largest number of up-regulated probes occurred at 0.5 DAI. Noticeable differences throughout the timeframe between Alamo and CR were that the number was dramatically decreased to half (12%) in Alamo but remained high in CR (approximately 20%). The number of down regulated genes demonstrated different trends in Alamo and CR. Alamo had an increasing trend from 9% at 0.5 DAI to 11, 17, and 28% at 2, 4, and 8 DAI, respectively. However, CR had 13% at 0.5 and 2 DAI, and declined to 10% at 4 and 8 DAI. With the aid of MapMan and PageMan, we mapped the response of the ID probes to the observed major gene regulatory network and major biosynthetic pathway changes associated with the beneficial bacterial endophyte infection, colonization, and early growth promotion process. We found significant differences in gene expression patterns between responsive and non-responsive cultivars in many pathways, including redox state regulation, signaling, proteolysis, transcription factors, as well as hormone (SA and JA in particular)-associated pathways. Form microarray data, a total of 50 key genes have been verified using qPCR. Ten of these genes were chosen for further functional study via either overexpression and/or RNAi knockout technologies. These genes were calmodulin-related calcium sensor protein (CAM), glutathione S-transferase (GST), histidine-containing phosphotransfer protein (H-221), 3 different zinc finger proteins (ZF-371, ZF131 and ZF242), EF hand transcription factor (EF-622), peroxidase, cellulose synthase catalytic submit A2 (CESA2), and Aux/IAA family. A total of 8 overexpression and 5 RNAi transgenic plants have been regenerated, and their gene expression levels determined using qPCR. Consequently

  8. Hydrogen production from switchgrass via a hybrid pyrolysis-microbial electrolysis process

    SciTech Connect (OSTI)

    Lewis, Alex J; Ren, Shoujie; Ye, Philip; Kim, Pyoungchung; Labbe, Niki; Borole, Abhijeet P

    2015-01-01

    A new approach to hydrogen production using a hybrid pyrolysis-microbial electrolysis process is described. The aqueous stream generated during pyrolysis of switchgrass was used as a substrate for hydrogen production in a microbial electrolysis cell, achieving a maximum hydrogen production rate of 4.3 L H2/L-day at a loading of 10 g COD/L-anode-day. Hydrogen yields ranged from 50 3.2% to76 0.5% while anode coulombic efficiency ranged from 54 6.5% to 96 0.21%, respectively. Significant conversion of furfural, organic acids and phenolic molecules was observed under both batch and continuous conditions. The electrical and overall energy efficiency ranged from 149-175% and 48-63%, respectively. The results demonstrate the potential of the pyrolysis-microbial electrolysis process as a sustainable and efficient route for production of renewable hydrogen with significant implications for hydrocarbon production from biomass.

  9. How to Prepare Your Abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to Prepare Your Abstract The abstract should provide a brief overview of your entire research. The abstract briefly states the research problem or purpose of the research (Introduction), how the problem was studied (Methods), what was discovered (Results), and how the results might be interpreted (Discussions and Conclusions). Acronyms may be used in an abstract, however they should be spelled out the first time they are used. Abstracts should be concise and descriptive. Symposium Abstract

  10. Abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    DESIGN, MANUFACTURE AND TESTING OF A Bend-Twist D-spar Cheng-Huat Ong & Stephen W. Tsai Department of Aeronautics &Astronautics Stanford University Stanford CA 94305-4035 -8 SAND99-1324 Unlimited Release Printed June 1999 @I Sandia National Laboratories Issued by Sandia National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the

  11. Abstract

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    the ratio of fission to fusion power to maintain MSR criticality, implemented through FORTRAN codes and associated files developed as part of this work. Simulations showed...

  12. ABSTRACT

    Office of Scientific and Technical Information (OSTI)

    ... (1968) performed experiments with 36 female and 36 male students in a climate chamber. ... Witterseh T. 2001. Environmental perception, SBS symptoms and performance of office work ...

  13. Abstract

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    based on a bottom-up approach both from the traditional definition of energy-economic-engineering modeling, the "integrated assessment" model methodology, and from a pragmatic...

  14. Abstract:

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    will discuss recent experiments on the structural, chemical, and electronic properties of graphene and hBN, including high resolution electron microscopy where real-time dynamics...

  15. ABSTRACT

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    ... Removal of the fast- neutron component would result in an ... aluminum, silicon, and sodium found in the norite rock 56. ... Th decay chains, terrestrial fission reactors also produce a ...

  16. Abstract

    Office of Scientific and Technical Information (OSTI)

    Department of Energy's National Nuclear Security Administration under Contract ... Laboratories, operated for the United States Department of Energy by Sandia Corporation. ...

  17. Abstract:

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    A prototypical disease example is the brain cancer glioblastoma multiforme (GBM). At the molecular level, it is rare for any two GBM patients to appear as if they have the same ...

  18. ABSTRACT

    Office of Scientific and Technical Information (OSTI)

    ... In addition, a different ozone monitor (same brand and model), with a more stable output signal was utilized. RESULTS Table 2 provides the upstream and downstream ozone ...

  19. Soil and variety effects on energy use and carbon emissions associated with switchgrass-based ethanol production in Mississippi

    SciTech Connect (OSTI)

    Woli, Prem; Paz, Joel O.; Baldwin, Brian S.; Lang, David J.; Kiniry, James R.

    2012-06-29

    High biomass production potential, wide adaptability, low input requirement, and low environmental risk make switchgrass an economically and ecologically viable energy crop.The inherent variablity in switchgrass productivity due to variations in soil and variety could affect the sustainability and eco-friendliness of switchgrass-based ethanol production. This study examined the soil and variety effects on these variables. Three locations in Mississippi were selected based on latitude and potential acreage. Using ALMANAC, switchgrass biomass yields were simulated for several scenarios of soils and varities. The simulated yields were fed to IBSAL to compute energy use and CO2 emissions in various operations in the biomass supply From the energy and emissions values, the sustainability and eco-friendliness of ethanol production were determined using net energy value (NEV) and carbon credit balance (CCB) as indicators, respectively. Soil and variety effects on NEV and CCB were analyzed using the Kruskal-Wallis test. Results showed significant differences in NEV and CCB across soils and varieties. Both NEV and CCB increased in the direction of heavier to lighter soils and on the order of north-upland , south-upland, north-lowland, and south-lowland varieties. Only north-upland and south-lowland varieties were significantly significantly different because they were different in both cytotype and ecotype. Gaps between lowland and upland varieties were smaller in a dry year than in a wet year. The NEV and CCB increased in the direction of dry to wet year. From south to north, they decreased for lowland cytotypes but increased for upland cytotypes. Thus, the differences among varieties decreased northwards.

  20. Structural Transformation of Isolated Poplar and Switchgrass Lignins from Dilute Acid Pretreatment

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Sun, Qining; Pu, Yunqiao; Meng, Xianzhi; Wells, Tyrone; Ragauskas, Arthur J.

    2015-08-27

    A key step in conversion of cellulosic biomass into sustainable fuels and chemicals is thermochemical pretreatment to reduce plant cell wall recalcitrance. Obtaining an improved understanding of the fundamental chemistry of lignin, the most recalcitrant component of biomass, during pretreatment is critical to the continued development of renewable biofuel production. To examine the intrinsic chemistry of lignin during dilute acid pretreatment (DAP), lignin was isolated from poplar and switchgrass using a cellulolytic enzyme system and then treated under DAP conditions. These results highlight that lignin is subjected to depolymerization reactions within the first 2 min of dilute acid pretreatment andmore » these changes are accompanied by increased generation of aliphatic and phenolic hydroxyl groups of lignin. This is followed by a competing set of depolymerization and repolymerization reactions that lead to a decrease in the content of guaiacyl lignin units and an increase in condensed lignin units as the reaction residence time is extended beyond 5 min. Finally, we showed that a detailed comparison of changes in functional groups and molecular weights of cellulolytic enzyme lignins with different structural parameters, related to the recalcitrant properties of lignin, could be successfully altered during DAP conditions.« less

  1. Structural Transformation of Isolated Poplar and Switchgrass Lignins from Dilute Acid Pretreatment

    SciTech Connect (OSTI)

    Sun, Qining; Pu, Yunqiao; Meng, Xianzhi; Wells, Tyrone; Ragauskas, Arthur J.

    2015-08-27

    A key step in conversion of cellulosic biomass into sustainable fuels and chemicals is thermochemical pretreatment to reduce plant cell wall recalcitrance. Obtaining an improved understanding of the fundamental chemistry of lignin, the most recalcitrant component of biomass, during pretreatment is critical to the continued development of renewable biofuel production. To examine the intrinsic chemistry of lignin during dilute acid pretreatment (DAP), lignin was isolated from poplar and switchgrass using a cellulolytic enzyme system and then treated under DAP conditions. These results highlight that lignin is subjected to depolymerization reactions within the first 2 min of dilute acid pretreatment and these changes are accompanied by increased generation of aliphatic and phenolic hydroxyl groups of lignin. This is followed by a competing set of depolymerization and repolymerization reactions that lead to a decrease in the content of guaiacyl lignin units and an increase in condensed lignin units as the reaction residence time is extended beyond 5 min. Finally, we showed that a detailed comparison of changes in functional groups and molecular weights of cellulolytic enzyme lignins with different structural parameters, related to the recalcitrant properties of lignin, could be successfully altered during DAP conditions.

  2. Mechanical Engineering Department technical abstracts

    SciTech Connect (OSTI)

    Denney, R.M.

    1982-07-01

    The Mechanical Engineering Department publishes listings of technical abstracts twice a year to inform readers of the broad range of technical activities in the Department, and to promote an exchange of ideas. Details of the work covered by an abstract may be obtained by contacting the author(s). Overall information about current activities of each of the Department's seven divisions precedes the technical abstracts.

  3. Technical abstracts: Mechanical engineering, 1990

    SciTech Connect (OSTI)

    Broesius, J.Y.

    1991-03-01

    This document is a compilation of the published, unclassified abstracts produced by mechanical engineers at Lawrence Livermore National Laboratory (LLNL) during the calendar year 1990. Many abstracts summarize work completed and published in report form. These are UCRL-JC series documents, which include the full text of articles to be published in journals and of papers to be presented at meetings, and UCID reports, which are informal documents. Not all UCIDs contain abstracts: short summaries were generated when abstracts were not included. Technical Abstracts also provides descriptions of those documents assigned to the UCRL-MI (miscellaneous) category. These are generally viewgraphs or photographs presented at meetings. An author index is provided at the back of this volume for cross referencing.

  4. Microsoft Word - djawotho_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Pibero Djawotho Texas A&M University Abstract: For polarized protons colliding at RHIC energies, the production of jets and hadrons is dominated by gg and qg scattering, making the ...

  5. Microsoft Word - sakai_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    will be served at 3:30 pm New Result from RIKEN RIBF Dr. H. Sakai RIKEN, Wako. Japan Abstract: Very recent experimental results from RI Beam Factory(RIBF) of RIKEN will be...

  6. Investigation of an integrated switchgrass gasification/fuel cell power plant. Final report for Phase 1 of the Chariton Valley Biomass Power Project

    SciTech Connect (OSTI)

    Brown, R.C.; Smeenk, J.; Steinfeld, G.

    1998-09-30

    The Chariton Valley Biomass Power Project, sponsored by the US Department of Energy Biomass Power Program, has the goal of converting switchgrass grown on marginal farmland in southern Iowa into electric power. Two energy conversion options are under evaluation: co-firing switchgrass with coal in an existing utility boiler and gasification of switchgrass for use in a carbonate fuel cell. This paper describes the second option under investigation. The gasification study includes both experimental testing in a pilot-scale gasifier and computer simulation of carbonate fuel cell performance when operated on gas derived from switchgrass. Options for comprehensive system integration between a carbonate fuel cell and the gasification system are being evaluated. Use of waste heat from the carbonate fuel cell to maximize overall integrated plant efficiency is being examined. Existing fuel cell power plant design elements will be used, as appropriate, in the integration of the gasifier and fuel cell power plant to minimize cost complexity and risk. The gasification experiments are being performed by Iowa State University and the fuel cell evaluations are being performed by Energy Research Corporation.

  7. Microsoft Word - roepke_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Cluster formation in nuclear systems Professor Gerd Roepke Institute of Physics, Rostock University, Germany Abstract To describe cluster formation in nuclear matter at subsaturation densities, in-medium modifications have to be taken into account. A cluster mean-field theory is discussed and compared with other approaches. Consequences for nuclear structure, heavy ion reactions and astrophysical applications are discussed.

  8. Microsoft Word - satz_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Quark Confinement and Hadrosynthesis Professor Helmut Satz Fakultaet fuer Physik, Universitaet Bielefeld, Bielefeld, Germany 10 May 2012 Abstract Hadron abundances in all high energy collisions follow the thermal pattern of an ideal resonance gas at a universal temperature of 170 MeV. We attempt to find a mechanism for such behavior in terms of universal quark constraints by the color confinement horizon.

  9. Microsoft Word - bang_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    fusion experiment on the Texas Petawatt Woosuk Bang Fusion Research Center The University of Texas at Austin Abstract When an intense, femtosecond pulse irradiates van der Waals bonded atomic clusters, the laser pulse energy can be absorbed very efficiently. This allows the laser to produce plasma with ion temperature higher than a few keV. When an energetic deuterium ion collides with another deuterium ion, a nuclear fusion reaction can occur, generating a 2.45 MeV neutron. By shooting

  10. Microsoft Word - bardayan_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    May 15, 2012, at 3:45 pm Room MIST 102 at the Mitchell Institute Refreshment will be served at 3:30 pm New instruments and recent results in the study of transfer reactions at the HRIBF Dr. Dan Bardayan Oak Ridge National Laboratory Abstract: Single-nucleon transfer reactions on heavy neutron-rich nuclei are critical to providing an empirical foundation for the determination of the incredibly large neutron fluxes in extreme environments such as exploding stars, internal confinement fusion

  11. Microsoft Word - bentley_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    30 at 3:45 PM Professor Michael A. Bentley Department of Physics University of York, York, UK Abstract: The new international FAIR facility in Darmstadt, Germany, has been launched and will provide a major radioactive beam facility in Europe for a wide range of science applications. One major activity within FAIR is the NuSTAR collaboration (Nuclear Structure, Astrophysics and Reactions) in which the UK plays a leading role in terms of the scientific drive and some of the technical developments.

  12. Microsoft Word - fields_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    4, 2010 at 3:45 pm "Primordial Nucleosynthesis After WMAP: The Lithium Problem and New Physics" Professor Brian Fields Departments of Astronomy and Physics Univ. of Illinois, Urbana, IL Abstract: The early universe is a central arena for the interplay among nuclear,particle, and astrophysics, and big-bang nucleosynthesis remains particularly important because it represents our earliest reliable probe of the cosmos. We will review the physics of primordial nucleosynthesis which

  13. Microsoft Word - mcnabb_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Dennis McNabb Lawrence Livermore National Laboratory Abstract: LLNL is an applied science laboratory that innovates technology to enable new ideas and concepts for government agencies responsible for nuclear security, counter-terrorism, national defense, energy, and environment. The Nuclear and High Energy Physics Section of LLNL provides and advances nuclear physics, particle physics and accelerator technology capabilities in support of these programs and other national priorities in science

  14. Microsoft Word - moody_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    NSI Colloquium on Monday, August 27 at 3:45 pm in Hawking Auditorium--Mitchel Institute Refreshments will be served at 3:30 pm FORENSIC RADIOCHEMISTRY Dr. Ken Moody Chemical Sciences Division, Lawrence Livermore National Laboratory Abstract: Signatures inherent in a sample containing radionuclides give clues about the origin of the material. This information can be quite important when dealing with smuggled nuclear materials interdicted by law enforcement personnel, or potential debris samples

  15. Microsoft Word - mosel_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    9, at 3:45 pm "Neutrino-Long-Baseline Experiments -- where Nuclear Physics is needed" Professor Ulrich Mosel Univ Giessen, Inst Theoret Phys, Giessen, Germany Abstract: Long baseline experiments with neutrinos require a precise knowledge of the incoming neutrino beam properties (energy and flux) as well as a detailed understanding of neutrino-nucleus interactions. In this talk I will discuss a nuclear-physics based simulation of such events on the basis of the Boltzmann-

  16. Microsoft Word - nica2_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    June 1st at 3:30 PM " Experimental evidence of repeatability in high-spin data and phenomenological interpretation Part one: Differential distributions" Dr. Ninel Nica Cyclotron Institute, Texas A&M University Abstract: We present the experimental evidence of a general correlation property of high-spin physics that we named Repeatability, consisting in highly hierarchized ordering relationships in two-dimensional gamma-ray coincidence data. However despite its generality

  17. Microsoft Word - pang_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    12, 2010 at 3:45 pm "RF Carpet Development at the NSCL" Gregory K. Pang** Departments of Astronomy and Physics Univ. of Illinois, Urbana, IL NSCL, Michigan State University, E. Lansing, MI ABSTRACT: The slowing down and thermalizing of nuclear reaction products from projectile fragmentation processes is essential for allowing the study of rare isotopes in low-energy precision experiments. Current methods of stopping fast beams rely on gas filled linear chambers equipped with electrodes

  18. Microsoft Word - sherrill_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    April 6 at 3:45 PM Designer Nuclei: New possibilities with the Facility for Rare Isotope Beams Professor Brad Sherrill Abstract: A quest of experimental nuclear science is to synthesize atoms made of all possible combinations of neutrons, protons and electrons. In part, based on our current capabilities for creating new isotopes, our understanding of atomic nuclei has changed dramatically. Many of the so called basic properties of atomic nuclei turn out to not be as universal as we thought.

  19. Microsoft Word - strickland_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    15th, 4:00 PM Dynamics of an anisotropic quark gluon plasma Dr. Michael Strickland Gettysburg College Abstract: In this talk I will review our theoretical understanding of the dynamics of a non- equilibrium quark gluon plasma. I will begin by discussing the emergence of strong local momentum-space anisotropies in the plasma due to the rapid longitudinal expansion of the plasma at early times. While strongly-coupled plasmas might remain approximately isotropic in the center of the collision

  20. Microsoft Word - wieloch_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    "Critical-like behavior in a lattice gas model" Professor Andrzej Wieloch M. Smoluchowski Inst. of Physics, Jagiellonian Univ., Krakow, Poland Abstract: The ALADIN multifragmentation data for reaction Au+Au at several hundreds A.MEV show features characteristic of critical behavior, which are very well reproduced by a bond percolation model. This suggests, in the context of the lattice gas model, that fragments are formed at nearly normal nuclear densities and temperatures

  1. Microsoft Word - xu_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Theory Seminar Friday, January 21st, at 4:00 pm Triangular flow and dihadron azimuthal correlations in heavy ion collisions Dr. Jun Xu Abstract The dihadron azimuthal correlations triggered by energetic particles in heavy ion collisions at RHIC are studied in a multiphase transport (AMPT) model. A double- peak structure at the away side of triggered particles is obtained after subtracting background correlations due to the elliptic flow as observed in experiments. Both the near-side peak and the

  2. Microsoft Word - davinson_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    23 at 10:30 AM "Decay Spectroscopy at FAIR Using the Advanced Implantation Detector Array (AIDA)" Dr. Thomas Davinson The University of Edinburgh, UK Abstract: The objective of the Advanced Implantation Detector Array (AIDA) project is to develop, commission and exploit a state of the art silicon detector array for decay spectroscopy experiments at the SuperFRS, FAIR. Multi-GeV exotic ions will be implanted into the silicon detector array and AIDA will perform spectroscopy quality

  3. Microsoft Word - hohler_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    29th, 4:00 PM Bulk spectral function sum rule in QCD-like theories with a holographic dual Dr. Paul M. Hohler University of Illinois at Chicago Abstract: In this talk, the sum rule for the spectral function of the stress-energy tensor in the bulk (uniform dilatation) channel is derived for a general class of strongly coupled field theories. This class includes theories holographically dual to a theory of gravity coupled to a single scalar field, representing the operator of the scale anomaly. In

  4. Microsoft Word - li_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    3, 2011 3:45 pm Refreshment will be served at 3:30 pm A few new issues regarding the density dependence of nuclear symmetry energy Professor Bao-An Li Department of Physics and Astronomy, Texas A&M University-Commerce Abstract: The density dependence of nuclear symmetry energy is rather poorly known at both sub-saturation and supra-saturation densities. However, it is very important for understanding many interesting properties/phenomena/processes in nuclear structure, heavy-ion reactions

  5. Microsoft Word - linnyk_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Monday, May 22nd, at 1:30 pm "Dilepton production at SPS and RHIC energies" Dr. Olena Linnyk Frankfurt Institute for Advanced Study (FIAS), Frankfurt, Germany Abstract: Analysis of SPS and RHIC data have established that collisions of heavy ions have created matter at a temperature of about 4 trillion degrees Celsius, higher than the temperature needed to melt protons and neutrons into a plasma of quarks and gluons. Lepton pairs provide sensitive penetrating probes of the hot quark

  6. Microsoft Word - saastamoinen_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    April 24, 2012, at 2:00 pm Refreshment will be served at 1:45 pm Beta-decay Studies for Nova Nucleosynthesis Dr. Antti Saastamoinen University of Jyväskylä / TAMU Abstract Classical novae occur in interacting binary systems, where hydrogen-rich material accretes on a white dwarf from its low-mass main-sequence companion. Eventually, the accretion of the hydrogen-rich matter leads to a thermonuclear runaway (TNR). Understanding the dynamics of the nova outbursts and the nucleosynthesis fueling

  7. Microsoft Word - sobotka_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    November 9th, at 3:45 pm 2p-2p decay in 8 C and other 2p decay cases in light nuclei Professor L. G. Sobotka Departments of Chemistry and Physics Washington University, St. Louis Abstract Recent technical advances have allowed for high-order correlation experiments to be done. We have primarily focused on experiments in which the final channel is composed of only alphas and protons. Three cases we have studied are: 6 Be, 10 C and 8 C via 3, 4, and 5-particle correlation experiments respectively.

  8. Microsoft Word - weber_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    March 9, at 3:45 pm "Neutron Stars as Astrophysical Laboratories for Nuclear and Particle Physics" Professor Fridolin Weber Department of Physics, San Diego State University Abstract: Neutron stars are among the most enigmatic objects that exist in the Universe. They are as massive as our Sun but are trillions of times smaller in volume. The matter in the cores of neutron stars is therefore compressed to densities that are several times greater than the densities of atomic nuclei. This

  9. Microsoft Word - yongseok_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Friday July 27, 2012, at 2:00 pm Room MIST 102 at the Mitchell Institute Refreshment will be served at 1:45 pm High spin resonances in hadron reactions Dr. Yongseok Department of Physics, Kyungpook National University, Korea Abstract: (I) To understand the reaction mechanisms of the baryon/meson production processes, it is necessary to consider high spin baryon fields since many resonances in the mass of 2 GeV carry spin higher than 3/2. In this talk, we will discuss how to introduce high spin

  10. Biological & Environmental Research Abstracts Database

    Office of Scientific and Technical Information (OSTI)

    Submit Ober Abstracts All project abstracts should be submitted via email to: Please include the project title and principal investigator's name along with the abstract submission. Thank you.

  11. Poster Abstract of Eighteenth ARM STM

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    8 Science Team MeetingPoster Abstract 2008

  12. Poster Abstract of Seventeenth ARM STM

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    7 Science Team MeetingPoster Abstract 2007

  13. An abstract approach to music.

    SciTech Connect (OSTI)

    Kaper, H. G.; Tipei, S.

    1999-04-19

    In this article we have outlined a formal framework for an abstract approach to music and music composition. The model is formulated in terms of objects that have attributes, obey relationships, and are subject to certain well-defined operations. The motivation for this approach uses traditional terms and concepts of music theory, but the approach itself is formal and uses the language of mathematics. The universal object is an audio wave; partials, sounds, and compositions are special objects, which are placed in a hierarchical order based on time scales. The objects have both static and dynamic attributes. When we realize a composition, we assign values to each of its attributes: a (scalar) value to a static attribute, an envelope and a size to a dynamic attribute. A composition is then a trajectory in the space of aural events, and the complex audio wave is its formal representation. Sounds are fibers in the space of aural events, from which the composer weaves the trajectory of a composition. Each sound object in turn is made up of partials, which are the elementary building blocks of any music composition. The partials evolve on the fastest time scale in the hierarchy of partials, sounds, and compositions. The ideas outlined in this article are being implemented in a digital instrument for additive sound synthesis and in software for music composition. A demonstration of some preliminary results has been submitted by the authors for presentation at the conference.

  14. Identification and molecular characterization of the switchgrass AP2/ERF transcription factor superfamily, and overexpression of PvERF001 for improvement of biomass characteristics for biofuel

    SciTech Connect (OSTI)

    Wuddineh, Wegi A.; Mazarei, Mitra; Turner, Geoffry B.; Sykes, Robert W.; Decker, Stephen R.; Davis, Mark F.; C. Neal Stewart, Jr.

    2015-07-20

    The APETALA2/ethylene response factor (AP2/ERF) superfamily of transcription factors (TFs) plays essential roles in the regulation of various growth and developmental programs including stress responses. Members of these TFs in other plant species have been implicated to play a role in the regulation of cell wall biosynthesis. Here, we identified a total of 207 AP2/ERF TF genes in the switchgrass genome and grouped into four gene families comprised of 25 AP2-, 121 ERF-, 55 DREB (dehydration responsive element binding)-, and 5 RAV (related to API3/VP) genes, as well as a singleton gene not fitting any of the above families. The ERF and DREB subfamilies comprised seven and four distinct groups, respectively. Analysis of exon/intron structures of switchgrass AP2/ERF genes showed high diversity in the distribution of introns in AP2 genes versus a single or no intron in most genes in the ERF and RAV families. The majority of the subfamilies or groups within it were characterized by the presence of one or more specific conserved protein motifs. In silico functional analysis revealed that many genes in these families might be associated with the regulation of responses to environmental stimuli via transcriptional regulation of the response genes. Moreover, these genes had diverse endogenous expression patterns in switchgrass during seed germination, vegetative growth, flower development, and seed formation. Interestingly, several members of the ERF and DREB families were found to be highly expressed in plant tissues where active lignification occurs. These results provide vital resources to select candidate genes to potentially impart tolerance to environmental stress as well as reduced recalcitrance. Furthermore, overexpression of one of the ERF genes (PvERF001) in switchgrass was associated with increased biomass yield and sugar release efficiency in transgenic lines, exemplifying the potential of these TFs in the development of lignocellulosic feedstocks with improved biomass characteristics for biofuels.

  15. Development of a Bulk-Format System to Harvest, Handle, Store, and Deliver High-Tonnage Low-Moisture SwitchgrassFeedstock

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Genera Energy Inc. ● 167 Tellico Port Road ● Vonore, TN 37885 Development of a Bulk-Format System to Harvest, Handle, Store, and Deliver High-Tonnage Low-Moisture Switchgrass Feedstock DOE Bioenergy Technologies Office (BETO) 2015 Project Peer Review March 25, 2015 Feedstock Supply & Logistics Presenter: Sam Jackson, Genera Energy Inc. Technical Lead: Al Womac, University of Tennessee Lead Organization: TennEra LLC (formerly Genera Energy LLC) Goal Statement  Develop and test

  16. Identification and molecular characterization of the switchgrass AP2/ERF transcription factor superfamily, and overexpression of PvERF001 for improvement of biomass characteristics for biofuel

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Wuddineh, Wegi A.; Mazarei, Mitra; Turner, Geoffry B.; Sykes, Robert W.; Decker, Stephen R.; Davis, Mark F.; C. Neal Stewart, Jr.

    2015-07-20

    The APETALA2/ethylene response factor (AP2/ERF) superfamily of transcription factors (TFs) plays essential roles in the regulation of various growth and developmental programs including stress responses. Members of these TFs in other plant species have been implicated to play a role in the regulation of cell wall biosynthesis. Here, we identified a total of 207 AP2/ERF TF genes in the switchgrass genome and grouped into four gene families comprised of 25 AP2-, 121 ERF-, 55 DREB (dehydration responsive element binding)-, and 5 RAV (related to API3/VP) genes, as well as a singleton gene not fitting any of the above families. Themore » ERF and DREB subfamilies comprised seven and four distinct groups, respectively. Analysis of exon/intron structures of switchgrass AP2/ERF genes showed high diversity in the distribution of introns in AP2 genes versus a single or no intron in most genes in the ERF and RAV families. The majority of the subfamilies or groups within it were characterized by the presence of one or more specific conserved protein motifs. In silico functional analysis revealed that many genes in these families might be associated with the regulation of responses to environmental stimuli via transcriptional regulation of the response genes. Moreover, these genes had diverse endogenous expression patterns in switchgrass during seed germination, vegetative growth, flower development, and seed formation. Interestingly, several members of the ERF and DREB families were found to be highly expressed in plant tissues where active lignification occurs. These results provide vital resources to select candidate genes to potentially impart tolerance to environmental stress as well as reduced recalcitrance. Furthermore, overexpression of one of the ERF genes (PvERF001) in switchgrass was associated with increased biomass yield and sugar release efficiency in transgenic lines, exemplifying the potential of these TFs in the development of lignocellulosic feedstocks with improved biomass characteristics for biofuels.« less

  17. Global transcriptome analysis of Clostridium thermocellum ATCC 27405 during growth on dilute acid pretreated Populus and switchgrass

    SciTech Connect (OSTI)

    Wilson, Charlotte M; Rodriguez Jr, Miguel; Johnson, Courtney M; Martin, S L.; Chu, Tzu Ming; Wolfinger, Russ; Hauser, Loren John; Land, Miriam L; Klingeman, Dawn Marie; Tschaplinski, Timothy J; Mielenz, Jonathan R; Brown, Steven D

    2013-01-01

    Background The thermophilic anaerobe Clostridium thermocellum is a candidate consolidated bioprocessing (CBP) biocatalyst for cellulosic ethanol production. The aim of this study was to investigate C. thermocellum genes required to ferment biomass substrates and to conduct a robust comparison of DNA microarray and RNA sequencing (RNA-seq) analytical platforms. Results C. thermocellum ATCC 27405 fermentations were conducted with a 5 g/L solid substrate loading of either pretreated switchgrass or Populus. Quantitative saccharification and inductively coupled plasma emission spectroscopy (ICP-ES) for elemental analysis revealed composition differences between biomass substrates, which may have influenced growth and transcriptomic profiles. High quality RNA was prepared for C. thermocellum grown on solid substrates and transcriptome profiles were obtained for two time points during active growth (12 hours and 37 hours postinoculation). A comparison of two transcriptomic analytical techniques, microarray and RNA-seq, was performed and the data analyzed for statistical significance. Large expression differences for cellulosomal genes were not observed. We updated gene predictions for the strain and a small novel gene, Cthe_3383, with a putative AgrD peptide quorum sensing function was among the most highly expressed genes. RNAseq data also supported different small regulatory RNA predictions over others. The DNA microarray gave a greater number (2,351) of significant genes relative to RNA-seq (280 genes when normalized by the kernel density mean of M component (KDMM) method) in an analysis of variance (ANOVA) testing method with a 5 % false discovery rate (FDR). When a 2-fold difference in expression threshold was applied, 73 genes were significantly differentially expressed in common between the two techniques. Sulfate and phosphate uptake/utilization genes, along with genes for a putative efflux pump system were some of the most differentially regulated transcripts when profiles for C. thermocellum grown on either pretreated switchgrass or Populus were compared. Conclusions Our results suggest that a high degree of agreement in differential gene expression measurements between transcriptomic platforms is possible, but choosing an appropriate normalization regime is essential.

  18. Poster Abstract Guidelines | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Poster Abstract Guidelines Poster Abstract Guidelines PDF icon Poster Abstract Guidelines.pdf More Documents & Publications Call For Abstracts (Student Research Forum) Funding Opportunity Webinar - Buildings University Innovators and Leaders Development (BUILD) Funding Opportunity Webinar - Buildings University Innovators and Leaders Development (BUILD) Student Poster Competition flyer

  19. Call for Abstracts | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Services » Environmental Justice » Call for Abstracts Call for Abstracts 2013 National Environmental Justice Conference and Training Program Call for Abstracts Please join us for the 2013 National Environmental Justice Conference and Training Program, April 3 - 5, 2013, co-located at the Howard University School of Law and the Marriott at Metro Center. PDF icon Call for Abstracts More Documents & Publications CALL FOR ABSTRACTS for the 2014 National Environmental Justice Conference and

  20. Separation of switchgrass bio-oil by water/organic solvent addition and pH adjustment

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Park, Lydia Kyoung-Eun; Ren, Shoujie; Yiacoumi, Sotira; Ye, X. Philip; Borole, Abhijeet P.; Tsouris, Costas

    2016-01-01

    Applications of bio-oil are limited by its challenging properties including high moisture content, low pH, high viscosity, high oxygen content, and low heating value. Separation of switchgrass bio-oil components by adding water, organic solvents (hexadecane and octane), and sodium hydroxide may help to overcome these issues. Acetic acid and phenolic compounds were extracted in aqueous and organic phases, respectively. Polar chemicals, such as acetic acid, did not partition in the organic solvent phase. Acetic acid in the aqueous phase after extraction is beneficial for a microbial-electrolysis-cell application to produce hydrogen as an energy source for further hydrodeoxygenation of bio-oil. Organicmore » solvents extracted more chemicals from bio-oil in combined than in sequential extraction; however, organic solvents partitioned into the aqueous phase in combined extraction. When sodium hydroxide was added to adjust the pH of aqueous bio-oil, organic-phase precipitation occurred. As the pH was increased, a biphasic aqueous/organic dispersion was formed, and phase separation was optimized at approximately pH 6. The neutralized organic bio-oil had approximately 37% less oxygen and 100% increased heating value than the initial centrifuged bio-oil. In conclusion, the less oxygen content and increased heating value indicated a significant improvement of the bio-oil quality through neutralization.« less

  1. 2016 Call for Abstracts | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Call for Abstracts 2016 Call for Abstracts PDF icon 2016 Call for Abstracts.pdf More Documents & Publications QER - Comment of Edison Electric Institute (EEI) 1 Behavioral Opportunities for Energy Savings in Office Buildings: a London Field Experiment QER - Comment of Edison Electric Institute (EEI) 2

  2. Combined inactivation of the Clostridium cellulolyticum lactate and malate dehydrogenase genes substantially increases ethanol yield from cellulose and switchgrass fermentations

    SciTech Connect (OSTI)

    Li, Yongchao; Tschaplinski, Timothy J; Engle, Nancy L; Hamilton, Choo Yieng; Rodriguez, Jr., Miguel; Liao, James C; Schadt, Christopher Warren; Guss, Adam M; Yang, Yunfeng; Graham, David E

    2012-01-01

    Background: The model bacterium Clostridium cellulolyticum efficiently hydrolyzes crystalline cellulose and hemicellulose, using cellulosomes to degrade lignocellulosic biomass. Although it imports and ferments both pentose and hexose sugars to produce a mixture of ethanol, acetate, lactate, H2 and CO2, the proportion of ethanol is low, which impedes its use in consolidated bioprocessing for biofuels. Therefore genetic engineering will likely be required to improve the ethanol yield. Random mutagenesis, plasmid transformation, and heterologous expression systems have previously been developed for C. cellulolyticum, but targeted mutagenesis has not been reported for this organism. Results: The first targeted gene inactivation system was developed for C. cellulolyticum, based on a mobile group II intron originating from the Lactococcus lactis L1.LtrB intron. This markerless mutagenesis system was used to disrupt both the paralogous L-lactate dehydrogenase (Ccel_2485; ldh) and L-malate dehydrogenase (Ccel_0137; mdh) genes, distinguishing the overlapping substrate specificities of these enzymes. Both mutations were then combined in a single strain. This double mutant produced 8.5-times more ethanol than wild-type cells growing on crystalline cellulose. Ethanol constituted 93% of the major fermentation products (by molarity), corresponding to a molar ratio of ethanol to organic acids of 15, versus 0.18 in wild-type cells. During growth on acid-pretreated switchgrass, the double mutant also produced four-times as much ethanol as wild-type cells. Detailed metabolomic analyses identified increased flux through the oxidative branch of the mutant s TCA pathway. Conclusions: The efficient intron-based gene inactivation system produced the first gene-targeted mutations in C. cellulolyticum. As a key component of the genetic toolbox for this bacterium, markerless targeted mutagenesis enables functional genomic research in C. cellulolyticum and rapid genetic engineering to significantly alter the mixture of fermentation products. The initial application of this system successfully engineered a strain with high ethanol productivity from complex biomass substrates.

  3. Poster Abstract of Nineteenth ARM STM

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    9 Science Team MeetingPoster Abstract 2009 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Proceedings Sorted by Category

  4. Analysis of complex networks using aggressive abstraction.

    SciTech Connect (OSTI)

    Colbaugh, Richard; Glass, Kristin.; Willard, Gerald

    2008-10-01

    This paper presents a new methodology for analyzing complex networks in which the network of interest is first abstracted to a much simpler (but equivalent) representation, the required analysis is performed using the abstraction, and analytic conclusions are then mapped back to the original network and interpreted there. We begin by identifying a broad and important class of complex networks which admit abstractions that are simultaneously dramatically simplifying and property preserving - we call these aggressive abstractions -- and which can therefore be analyzed using the proposed approach. We then introduce and develop two forms of aggressive abstraction: 1.) finite state abstraction, in which dynamical networks with uncountable state spaces are modeled using finite state systems, and 2.) onedimensional abstraction, whereby high dimensional network dynamics are captured in a meaningful way using a single scalar variable. In each case, the property preserving nature of the abstraction process is rigorously established and efficient algorithms are presented for computing the abstraction. The considerable potential of the proposed approach to complex networks analysis is illustrated through case studies involving vulnerability analysis of technological networks and predictive analysis for social processes.

  5. ARM - Instructions for Submitting Extended Abstracts

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govPublicationsScience Team Meeting ProceedingsInstructions for Submitting Extended Abstracts Publications Journal Articles Conference Documents Program Documents Technical Reports Publications Database Public Information Materials Image Library Videos Publication Resources Submit a Publication Publishing Procedures ARM Style Guide (PDF, 448KB) Acronyms Glossary Logos Contacts RSS for Publications Instructions for Submitting Extended Abstracts Following are instructions for submitting extended

  6. Pulmonary toxicology of respirable particles. [Lead abstract

    SciTech Connect (OSTI)

    Sanders, C.L.; Cross, F.T.; Dagle, G.E.; Mahaffey, J.A.

    1980-09-01

    Separate abstracts were prepared for the 44 papers presented in these proceedings. The last paper (Stannard) in the proceedings is an historical review of the field of inhalation toxicology and is not included in the analytics. (DS)

  7. Biological & Environmental Research Abstracts Database

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Welcome to the Biological and Environmental Research Abstracts Database The U.S. Department of Energy's Office of Biological and Environmental Research (BER) conducts research in the areas of Climate and Environmental Sciences and Biological Systems Science. This database contains abstracts of research projects supported by the program. Work was performed at DOE Laboratories as well as at nearly 300 universities and other research institutions. This is a historical database that includes the

  8. Development of a Bulk-Format System to Harvest, Handle, Store, and Deliver High-Tonnage Low-Moisture Switchgrass Feedstock

    SciTech Connect (OSTI)

    Womac, Alvin; Groothuis, Mitch; Westover, Tyler; Phanphanich, Manunya; Webb, Erin; Sokhansanj, Shahab; Turhollow, Anthony

    2013-09-24

    This project evaluates and compares comprehensive feedstock logistics systems (FLS), where a FLS is defined to comprehensively span from biomass material standing in a field to conveyance of a uniform, industrial-milled product into the throat of a biomass conversion facility (BCF). Elements of the bulk-format FLS evaluated in this project include: field-standing switchgrass dry chopped into bulk format on the farm, hauled (either loose or bulk compacted) to storage, stored with confining overburden in a protective facility, reclaimed and conveyed to bulk-format discharge, bulk compacted into an ejector trailer, and conveyed as bulk flow into the BCF. In this FLS evaluation, bulk storage bins served as a controlled and sensored proxy for large commercial stacks protected from moisture with a membrane cover.

  9. Natural radiation environment III. [Lead Abstract

    SciTech Connect (OSTI)

    Gesell, T.F.; Lowder, W.M.

    1980-01-01

    Separate abstracts were prepared for the 52 research papers presented at this symposium in April 1978. The major topics in this volume deal with penetrating radiation measurements, radiation surveys and population exposure, radioactivity in the indoor environment, and technologically enhanced natural radioactivity. (KRM)

  10. Controlling microbial contamination during hydrolysis of AFEX-pretreated corn stover and switchgrass: Effects on hydrolysate composition, microbial response and fermentation

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Serate, Jose; Xie, Dan; Pohlmann, Edward; Donald, Jr., Charles; Shabani, Mahboubeh; Hinchman, Li; Higbee, Alan; Mcgee, Mick; La Reau, Alex; Klinger, Grace E.; et al

    2015-11-14

    Microbial conversion of lignocellulosic feedstocks into biofuels remains an attractive means to produce sustainable energy. It is essential to produce lignocellulosic hydrolysates in a consistent manner in order to study microbial performance in different feedstock hydrolysates. Because of the potential to introduce microbial contamination from the untreated biomass or at various points during the process, it can be difficult to control sterility during hydrolysate production. In this study, we compared hydrolysates produced from AFEX-pretreated corn stover and switchgrass using two different methods to control contamination: either by autoclaving the pretreated feedstocks prior to enzymatic hydrolysis, or by introducing antibiotics duringmore » the hydrolysis of non-autoclaved feedstocks. We then performed extensive chemical analysis, chemical genomics, and comparative fermentations to evaluate any differences between these two different methods used for producing corn stover and switchgrass hydrolysates. Autoclaving the pretreated feedstocks could eliminate the contamination for a variety of feedstocks, whereas the antibiotic gentamicin was unable to control contamination consistently during hydrolysis. Compared to the addition of gentamicin, autoclaving of biomass before hydrolysis had a minimal effect on mineral concentrations, and showed no significant effect on the two major sugars (glucose and xylose) found in these hydrolysates. However, autoclaving elevated the concentration of some furanic and phenolic compounds. Chemical genomics analyses using Saccharomyces cerevisiae strains indicated a high correlation between the AFEX-pretreated hydrolysates produced using these two methods within the same feedstock, indicating minimal differences between the autoclaving and antibiotic methods. Comparative fermentations with S. cerevisiae and Zymomonas mobilis also showed that autoclaving the AFEX-pretreated feedstocks had no significant effects on microbial performance in these hydrolysates. In conclusion, our results showed that autoclaving the pretreated feedstocks offered advantages over the addition of antibiotics for hydrolysate production. The autoclaving method produced a more consistent quality of hydrolysate.« less

  11. Automatic identification of abstract online groups

    DOE Patents [OSTI]

    Engel, David W; Gregory, Michelle L; Bell, Eric B; Cowell, Andrew J; Piatt, Andrew W

    2014-04-15

    Online abstract groups, in which members aren't explicitly connected, can be automatically identified by computer-implemented methods. The methods involve harvesting records from social media and extracting content-based and structure-based features from each record. Each record includes a social-media posting and is associated with one or more entities. Each feature is stored on a data storage device and includes a computer-readable representation of an attribute of one or more records. The methods further involve grouping records into record groups according to the features of each record. Further still the methods involve calculating an n-dimensional surface representing each record group and defining an outlier as a record having feature-based distances measured from every n-dimensional surface that exceed a threshold value. Each of the n-dimensional surfaces is described by a footprint that characterizes the respective record group as an online abstract group.

  12. FFCAct Clearinghouse, Directory of abstracts. Revision 1

    SciTech Connect (OSTI)

    Harwood, T.

    1994-05-01

    The Federal Facility Compliance Act (FFCAct) Clearinghouse is a card catalog of information about the FFCAct and its requirements for developing Site Treatment Plans (STP). The information available in the clearinghouse includes abstracts describing computer applications, technical reports, and a list of technical experts. Information can be accessed for use in responding to FFCAct requirements, and the clearinghouse provides search capabilities on particular topics and issues related to STP development. Appendix A includes: contacts from each site, for which contact has been made, who are developing STPs; the FFCAct Clearinghouse Fact Sheet and; additional hard copy forms to be used to populate the database. This report contains 50 abstracts related to the Radioactive Waste Technical Support Program.

  13. Microsoft Word - roepke_abstract2.pdf

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    June 5, 2012, at 3:45 pm Room MIST 102 at the Mitchell Institute Refreshment will be served at 3:30 pm Four-particle (alpha-like) correlations in nuclear systems Professor Gerd Roepke University of Rostock, Germany Abstract: Correlations are significant for the properties of nuclear systems at low densities and moderate temperatures. Continuum correlations, as well as bound state formation and quantum condensates are investigated in a systematic quantum statistical approach. In contrast to

  14. Final Report WSU Grayscale-Abstract.doc

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    425 Unlimited Release Printed August 2002 The Implementation of Braided Composite Materials in the Design of a Bend-Twist Coupled Blade James Locke and Ivan Contreras Hidalgo (Associate Professor and Graduate Research Assistant) Wichita State University Department of Aerospace Engineering Wichita, Kansas 67260-0044 Abstract This report presents results for conceptual wind turbine blade designs that are manufactured using braided composite materials. The SERI-8 wind turbine blade was used to

  15. Biological & Environmental Research Abstracts Database

    Office of Scientific and Technical Information (OSTI)

    Search Term(s) (supports AND and OR operators and phrase in "double quotes") Register Number Title Abstract Principal Investigator PI Lookup Institution Institution Lookup City Adelaide SA 5001 Aiken Albany Albuquerque Alcoa Center Alexandria Ames Amherst Anchorage Ann Arbor Ardmore Argonne Arlington Asheville Athens Atlanta Auburn Auburn University Augusta Aurora Austin Bailrigg, Lancaster UK, LA1 4Y Baltimore Bar Harbor Batavia Baton Rouge Beaufort Beaverton Belleville Bellevue

  16. Microsoft Word - McIntosh_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    23 at 2:00 PM Binary and Ternary Break-up of Excited Projectile-like Fragments Produced in 124 Xe + 112,124 Sn Reactions at E/A = 50MeV. Alan McIntosh Indiana University Abstract: Peripheral reactions of 124 Xe ions with 112,124 Sn target nuclei were examined by measuring charged particles in a highly segmented silicon/CsI(Tl) array at forward angles together with the measurement of coincident neutrons. Charged particles were identified for Z≤54 and isotopically resolved for Z≤14. Of

  17. Microsoft Word - abstract-lacognata-tx_2012

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    THE FLUORINE DESTRUCTION IN STARS: FIRST EXPERIMENTAL STUDY OF THE 19 F(p,α 0 ) 16 O REACTION AT ASTROPHYSICAL ENERGIES Dr. M. La Cognata INFN-Laboratori Nazionali del Sud, Catania, Italy ABSTRACT The 19 F(p,α) 16 O reaction is an important fluorine destruction channel in the proton-rich outer layers of asymptotic giant branch (AGB) stars and it might also play a role in hydrogen-deficient post- AGB star nucleosynthesis. So far, available direct measurements do not reach the energy region of

  18. Microsoft Word - mcintosh_abstract_2013.pdf

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Tuesday April 2nd, 2013, at 3:45 pm Room MIST 102 at the Mitchell Institute Refreshment will be served at 3:30 pm The Asymmetry Dependence of the Nuclear Caloric Curve Dr. Alan McIntosh Cyclotron Institute, TAMU Abstract: The nuclear caloric curve is a fundamental facet of the nuclear equation of state. By studying isotopically reconstructed sources produced in intermediate-energy heavy-ion collisions, we report for the first time a clear dependence of the caloric curve on the neutron-proton

  19. Microsoft Word - VECCHIO, Ken - ABSTRACT.docx

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    K en V ecchio Founding C hair, D epartment o f N anoEngineering, U C S an D iego Synthetic M ultifunctional M aterials: Metallic---Intermetallic L aminate ( MIL) C omposites Title: S ynthetic M ultifunctional M aterials: M etallic---Intermetallic L aminate ( MIL) C omposites Abstract: The field of material microstructure design targeted for a specific set of structural and functional properties is now a recognized field of focus in materials science and engineering. This talk describes a class

  20. Current Abstracts Nuclear Reactors and Technology

    SciTech Connect (OSTI)

    Bales, J.D.; Hicks, S.C.

    1993-01-01

    This publication Nuclear Reactors and Technology (NRT) announces on a monthly basis the current worldwide information available from the open literature on nuclear reactors and technology, including all aspects of power reactors, components and accessories, fuel elements, control systems, and materials. This publication contains the abstracts of DOE reports, journal articles, conference papers, patents, theses, and monographs added to the Energy Science and Technology Database during the past month. Also included are US information obtained through acquisition programs or interagency agreements and international information obtained through acquisition programs or interagency agreements and international information obtained through the International Energy Agency`s Energy Technology Data Exchange or government-to-government agreements. The digests in NRT and other citations to information on nuclear reactors back to 1948 are available for online searching and retrieval on the Energy Science and Technology Database and Nuclear Science Abstracts (NSA) database. Current information, added daily to the Energy Science and Technology Database, is available to DOE and its contractors through the DOE Integrated Technical Information System. Customized profiles can be developed to provide current information to meet each user`s needs.

  1. DOE-NABIR PI Workshop: Abstracts 2003

    SciTech Connect (OSTI)

    Various

    2003-01-28

    The mission of the NABIR program is to provide the fundamental science that will serve as the basis for the development of cost-effective bioremediation and long-term stewardship of radionuclides and metals in the subsurface at DOE sites. The focus of the program is on strategies leading to long-term immobilization of contaminants in situ to reduce the risk to humans and the environment. Contaminants of special interest are uranium, technetium, plutonium, chromium, and mercury. The focus of the NABIR program is on the bioremediation of these contaminants in the subsurface below the root zone, including both vadose and saturated zones. The program consists of four interrelated Science Elements (Biotransformation, Community Dynamics/Microbial Ecology, Biomolecular Science and Engineering, and Biogeochemistry). The program also has a cross-cutting Assessment Element that supports development of innovative approaches and technologies to support the science elements. An element called Bioremediation and its Societal Implications and Concerns (BASIC) addresses potential societal issues of implementing NABIR scientific findings. The material presented at this year's workshop focuses on approximately 60 research projects funded in FY 2000-2003 by the Environmental Remediation Sciences Division in DOE's Office of Biological and Environmental Research (BER) in the Office of Science. Abstracts of NABIR research projects are provided in this book.

  2. DSNF AND OTHER WASTE FORM DEGRADATION ABSTRACTION

    SciTech Connect (OSTI)

    J. CUNNANE

    2004-11-19

    Several hundred distinct types of DOE-owned spent nuclear fuel (DSNF) may potentially be disposed in the Yucca Mountain repository. These fuel types represent many more types than can be viably individually examined for their effect on the Total System Performance Assessment for the License Application (TSPA-LA). Additionally, for most of these fuel types, there is no known direct experimental test data for the degradation and dissolution of the waste form in repository groundwaters. The approach used in the TSPA-LA model is, therefore, to assess available information on each of 11 groups of DSNF, and to identify a model that can be used in the TSPA-LA model without differentiating between individual codisposal waste packages containing different DSNF types. The purpose of this report is to examine the available data and information concerning the dissolution kinetics of DSNF matrices for the purpose of abstracting a degradation model suitable for use in describing degradation of the DSNF inventory in the Total System Performance Assessment for the License Application. The data and information and associated degradation models were examined for the following types of DSNF: Group 1--Naval spent nuclear fuel; Group 2--Plutonium/uranium alloy (Fermi 1 SNF); Group 3--Plutonium/uranium carbide (Fast Flux Test Facility-Test Fuel Assembly SNF); Group 4--Mixed oxide and plutonium oxide (Fast Flux Test Facility-Demonstration Fuel Assembly/Fast Flux Test Facility-Test Demonstration Fuel Assembly SNF); Group 5--Thorium/uranium carbide (Fort St. Vrain SNF); Group 6--Thorium/uranium oxide (Shippingport light water breeder reactor SNF); Group 7--Uranium metal (N Reactor SNF); Group 8--Uranium oxide (Three Mile Island-2 core debris); Group 9--Aluminum-based SNF (Foreign Research Reactor SNF); Group 10--Miscellaneous Fuel; and Group 11--Uranium-zirconium hydride (Training Research Isotopes-General Atomics SNF). The analyses contained in this document provide an ''upper-limit'' (i.e., instantaneous degradation) model for use in the TSPA-LA model. ''Best-estimate'' models for the degradation of the fuels in each of the DSNF groups are discussed to provide a basis for selecting the upper limit model for use in the TSPA-LA model. The instantaneous degradation model is chosen for use in the TSPA-LA model because the available information shows that the degradation rate of the N Reactor fuel (which constitutes most of the DSNF inventory) is very high and because the available qualified information is insufficient to justify use of a less conservative approach. The commercial spent nuclear fuel model will be used for naval spent nuclear fuel because it has been shown to be conservative for representing naval spent nuclear fuel.

  3. Abstract: Design and Demonstration of an Advanced Agricultural...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Abstract: Design and Demonstration of an Advanced Agricultural Feedstock Supply System for Lignocellulosic Bioenergy Production Abstract: Design and Demonstration of an Advanced ...

  4. Call For Abstracts (Student Research Forum) | Department of Energy

    Energy Savers [EERE]

    Call For Abstracts (Student Research Forum) Call For Abstracts (Student Research Forum) PDF icon Call For Abstracts (Student Research Forum).pdf More Documents & Publications Poster Abstract Guidelines 2015 National Environmental Justice Conference and Training Program Concludes in Washington, DC Program Update: 4th Quarter 2011

  5. ABSTRACT: Bioenergy Harvesting Technologies to Supply Crop Residues In a

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Densified Large Square Bale Format | Department of Energy abstract

  6. ABSTRACT: Bioenergy Harvesting Technologies to Supply Crop Residues In a

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Densified Large Square Bale Format | Department of Energy abstract_1

  7. Division of Environmental Control Technology Program, 1979. [Lead abstract

    SciTech Connect (OSTI)

    1980-06-01

    Separate abstracts were prepared for the 10 sections in this progress report dealing with environmental engineering. (KRM)

  8. Abstract: Design and Demonstration of an Advanced Agricultural Feedstock

    Office of Environmental Management (EM)

    Supply System for Lignocellulosic Bioenergy Production | Department of Energy Abstract: Design and Demonstration of an Advanced Agricultural Feedstock Supply System for Lignocellulosic Bioenergy Production Abstract: Design and Demonstration of an Advanced Agricultural Feedstock Supply System for Lignocellulosic Bioenergy Production This abstract from FDC Enterprises discusses the impact and objectives for project that designs equipment improvements to streamline the harvest, staging, and

  9. Abstracts | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Abstracts Chemical Sciences, Geosciences, & Biosciences (CSGB) Division CSGB Home About Research Areas Reports and Activities Science Highlights Principal Investigators' Meetings BES Home Third DOE BES Separations Research Workshop Abstracts Print Text Size: A A A FeedbackShare Page Third DOE/BES Separations Research Workshop Presentation Abstracts Last Modified May 18, 1999 High Pressure and High Temperature Spectroscopic Studies of Supercritical Fluid Solutions Clement R. Yonker

  10. Chemical Hieroglyphs: Abstract Depiction of Complex Void Space Topology of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Nanoporous Materials | Center for Gas SeparationsRelevant to Clean Energy Technologies | Blandine Jerome Chemical Hieroglyphs: Abstract Depiction of Complex Void Space Topology of Nanoporous Materials Previous Next List Kevin Theisen, Berend Smit and Maciej Haranczyk, J. Chem. Inf. Model., 2010, 50 (4), pp 461-469 DOI: 10.1021/ci900451v Abstract Image Abstract In general, most porous materials are so complex that structural information cannot be easily observed with 3D visualization tools.

  11. Deep Borehole Disposal of Spent Fuel. Brady, Patrick V. Abstract...

    Office of Scientific and Technical Information (OSTI)

    Spent Fuel. Brady, Patrick V. Abstract not provided. Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States) USDOE National Nuclear Security Administration (NNSA)...

  12. 7th international symposium on photosynthetic prokaryotes. Abstracts

    SciTech Connect (OSTI)

    Fuller, R.C.

    1991-12-31

    This book contains the abstracts of all the presentations made either in oral or poster form, at the VII International Symposium on Photosynthetic Prokaryotes.

  13. 24th Annual Anomalous Absorption Conference. Book of abstracts

    SciTech Connect (OSTI)

    Not Available

    1994-08-01

    This report contains abstracts on topics in the following areas: parametric instabilities; hohlraum physics; laser plasma physics with short pulses; and rayleigh-taylor instability and hydrodynamics.

  14. Abstract: Development and Deployment of a Short Rotation Woody...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    New Holland Forage Harvester and SRC Woody Crop Header Abstract: Development and Deployment of a Short Rotation Woody Crops Harvesting System Based on a Case New Holland Forage ...

  15. Poster Abstract of Seventeenth ARM STM: Sort by Title

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Rate Profile (BBHRP) VAP ABSTRACT, POSTER Mlawer, E., Clough, S., Delamere, J., Miller, M., Johnson, K., Troyan, D., Jensen, M., Bartholomew, M., Shippert, T., Long, C.,...

  16. Selected Translated Abstracts of Chinese-Language Climate Change Publications

    SciTech Connect (OSTI)

    Cushman, R.M.; Burtis, M.D.

    1999-05-01

    This report contains English-translated abstracts of important Chinese-language literature concerning global climate change for the years 1995-1998. This body of literature includes the topics of adaptation, ancient climate change, climate variation, the East Asia monsoon, historical climate change, impacts, modeling, and radiation and trace-gas emissions. In addition to the biological citations and abstracts translated into English, this report presents the original citations and abstracts in Chinese. Author and title indexes are included to assist the reader in locating abstracts of particular interest.

  17. Alamos National Laboratory] Materials Science(36) Abstract Not...

    Office of Scientific and Technical Information (OSTI)

    Co-Design at the Mesoscale: Opportunities for NSLS-II Sarrao, John L. Los Alamos National Laboratory Materials Science(36) Abstract Not Provided Los Alamos National Laboratory...

  18. Molecular biology of signal transduction in plants. Abstracts

    SciTech Connect (OSTI)

    Not Available

    1991-12-31

    This volume contains abstracts of oral presentations and poster sessions of the 1991 Cold Springs Harbor Meeting entitled Molecular Biology of Signal Transduction in Plants.

  19. GRC 2009 Annual Meeting Announced, Call for Abstracts Issued

    Broader source: Energy.gov [DOE]

    The Geothermal Resources Council (GRC) issued a call for abstracts today with the announcement of the world’s largest geothermal event taking place October 4-7, 2009, in Reno, Nevada, at the Peppermill Resort Spa Casino.

  20. Small Business Innovation Research. Abstracts of Phase I awards, 1999

    SciTech Connect (OSTI)

    1999-12-01

    This booklet presents technical abstracts of Phase I awards made in Fiscal Year (FY) 1999 under the DOE Small Business Innovation Research (SBIR) program. SBIR research explores innovative concepts in important technological and scientific areas that can lead to valuable new technology and products. The work described in the abstracts is novel, high-risk research, but the benefits will also be potentially high if the objectives are met. Brief comments on the potential applications, as described by the awardee, are given after each abstract. Individuals and organizations, including venture capital and larger industrial firms, with an interest in the research described in any of the abstracts are encouraged to contact the appropriate small business directly.

  1. Earth Sciences Division annual report 1981. [Lead abstract

    SciTech Connect (OSTI)

    Not Available

    1982-09-01

    Separate abstracts were prepared for the 59 papers of the 1981 annual report of the Earth Sciences Division at Lawrence Berkeley Laboratory. The general topics covered included nuclear waste isolation, geophysics and reservoir engineering, and geosciences. (KRM)

  2. Poster Abstract of Nineteenth ARM STM: Sort by Title

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and Their Impact on Surface Radiation Budget at Barrow, Alaska ABSTRACT Dong, X., Xi, B., Crosby, K., Long, C., and Stone, R. Accomplishments and Status of the SGP During...

  3. SERS internship Fall 1992--Spring 1993: Abstract and research papers

    SciTech Connect (OSTI)

    Not Available

    1993-08-05

    This report contains the abstracts and research papers by students on a variety of topics in engineering, genetics, solid state physics, thermonuclear energy, astrophysics, and other science related topics.

  4. The Bioelectromagnetic Society Thirteenth Annual Meeting 1991: Program and abstracts

    SciTech Connect (OSTI)

    Not Available

    1992-12-31

    This volume contains author abstracts representing oral and poster presentations made at the Thirteenth Annual Meeting of The Bioelectromagnetic Society held in Salt Lake City, Utah June 23--27, 1991.

  5. Abstracts | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Reports » Abstracts Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy Sciences Advisory Committee (BESAC) Community Resources Program Summaries Brochures Reports Abstracts Accomplishments Presentations BES and Congress Science for Energy Flow Seeing Matter Nano for Energy Scale of Things Chart Contact Information Basic Energy Sciences U.S. Department of Energy SC-22/Germantown Building 1000 Independence Ave., SW

  6. Conference Abstracts & Book Chapters | Photosynthetic Antenna Research

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Center Conference Abstracts & Book Chapters Conference Abstracts & Book Chapters Collins AM, Wen J and Blankenship RE (2011) Photosynthetic Light Harvesting Complexes. In Molecular Solar Fuels, T. Wydrzynski and W. Hillier, Eds., Royal Society of Chemistry, Cambridge, UK. Frank HA, Magdaong N, Niedzwiedzki DM, LaFountain AM, Gardiner AT, Carey A-M, Gibson GN, and Cogdell RJ (2014) Investigation of the excited state spectra and dynamics of rhodopinal glucoside from Rhodoblastus

  7. Abstracts and research accomplishments of university coal research projects

    SciTech Connect (OSTI)

    Not Available

    1991-06-01

    The Principal Investigators of the grants supported by the University Coal Research Program were requested to submit abstracts and highlight accomplishments of their projects in time for distribution at a grantees conference. This book is a compilation of the material received in response to the request. Abstracts discuss the following area: coal science, coal surface science, reaction chemistry, advanced process concepts, engineering fundamentals and thermodynamics, environmental science.

  8. Fuel Cells for Transportation - Research and Development: Program Abstracts

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    | Department of Energy Research and Development: Program Abstracts Fuel Cells for Transportation - Research and Development: Program Abstracts Remarkable progress has been achieved in the development of proton-exchange-membrane(PEM) fuel cell technology since the U.S. Department of Energy (DOE) initiated a significant developmental program in the early 1990s. This progress has stimulated enormous interest worldwide in developing fuel cell products for transportation as well as for stationary

  9. Vulnerability analysis for complex networks using aggressive abstraction.

    SciTech Connect (OSTI)

    Colbaugh, Richard; Glass, Kristin L.

    2010-06-01

    Large, complex networks are ubiquitous in nature and society, and there is great interest in developing rigorous, scalable methods for identifying and characterizing their vulnerabilities. This paper presents an approach for analyzing the dynamics of complex networks in which the network of interest is first abstracted to a much simpler, but mathematically equivalent, representation, the required analysis is performed on the abstraction, and analytic conclusions are then mapped back to the original network and interpreted there. We begin by identifying a broad and important class of complex networks which admit vulnerability-preserving, finite state abstractions, and develop efficient algorithms for computing these abstractions. We then propose a vulnerability analysis methodology which combines these finite state abstractions with formal analytics from theoretical computer science to yield a comprehensive vulnerability analysis process for networks of realworld scale and complexity. The potential of the proposed approach is illustrated with a case study involving a realistic electric power grid model and also with brief discussions of biological and social network examples.

  10. SRS scientific and technical abstracts, July--September 1992

    SciTech Connect (OSTI)

    Not Available

    1992-10-01

    This document focuses on the scientific and technical information (STT) reports, articles, and presentations generated at the site by various authors and organizations of Westinghouse Savannah River Company and its subcontractors. Abstracts of these STI products are contained within this document. The abstracts have been compiled as they originally appeared in the source reports. No changes to the content have been made except as necessary to correct errors of spelling, to reduce abstract length, or to ensure that the information is unclassified. The abstracts are organized according to information categories ( UC'' categories) established by the Department of Energy's Office of Scientific and Technical Information (OSTI). When reports fall into more than one category, their abstract is included as an entry in the most applicable section of this document. UC-700 General, Miscellaneous, and Progress Reports, UC-701 Chemistry, UC-702 Environmental Sciences, UC-703 Geosciences, UC-704 Materials, UC-705 Mathematics and Computer Sciences, UC-706 Engineering, Equipment, and Instruments, UC-707 Health and Safety, UC-708 Biological Sciences, UC-711 Chemical Separation Processes for Plutonium and Uranium, UC-712 Inertial Confinement Fusion, UC-713 Radioisotope and Radiation Applications, UC-714 Criticality Studies, UC-715 Technology - Feed Materials, UC-721 Defense Waste Management, UC-722 Transportation of Nuclear Materials, UC-731 Nuclear Materials Production, UC-732 Special Isotope Separation (Plutonium), UC-733 Nuclear Raw Materials, UC-741 Chemical High Explosives, UC-742 Applications of Explosions, UC-743 Nuclear Propulsion Systems, UC-744 Aerospace Nuclear Safety, and Index 91.

  11. SRS scientific and technical abstracts, July--September 1992

    SciTech Connect (OSTI)

    Not Available

    1992-10-01

    This document focuses on the scientific and technical information (STT) reports, articles, and presentations generated at the site by various authors and organizations of Westinghouse Savannah River Company and its subcontractors. Abstracts of these STI products are contained within this document. The abstracts have been compiled as they originally appeared in the source reports. No changes to the content have been made except as necessary to correct errors of spelling, to reduce abstract length, or to ensure that the information is unclassified. The abstracts are organized according to information categories (``UC`` categories) established by the Department of Energy`s Office of Scientific and Technical Information (OSTI). When reports fall into more than one category, their abstract is included as an entry in the most applicable section of this document. UC-700 General, Miscellaneous, and Progress Reports, UC-701 Chemistry, UC-702 Environmental Sciences, UC-703 Geosciences, UC-704 Materials, UC-705 Mathematics and Computer Sciences, UC-706 Engineering, Equipment, and Instruments, UC-707 Health and Safety, UC-708 Biological Sciences, UC-711 Chemical Separation Processes for Plutonium and Uranium, UC-712 Inertial Confinement Fusion, UC-713 Radioisotope and Radiation Applications, UC-714 Criticality Studies, UC-715 Technology - Feed Materials, UC-721 Defense Waste Management, UC-722 Transportation of Nuclear Materials, UC-731 Nuclear Materials Production, UC-732 Special Isotope Separation (Plutonium), UC-733 Nuclear Raw Materials, UC-741 Chemical High Explosives, UC-742 Applications of Explosions, UC-743 Nuclear Propulsion Systems, UC-744 Aerospace Nuclear Safety, and Index 91.

  12. Human genome program report. Part 2, 1996 research abstracts

    SciTech Connect (OSTI)

    1997-11-01

    This report contains Part 2 of a two-part report to reflect research and progress in the US Department of Energy Human Genome Program from 1994 through 1996, with specified updates made just before publication. Part 2 consists of 1996 research abstracts. Attention is focused on the following: sequencing; mapping; informatics; ethical, legal, and social issues; infrastructure; and small business innovation research.

  13. Recent advances in yeast molecular biology: recombinant DNA. [Lead abstract

    SciTech Connect (OSTI)

    Not Available

    1982-09-01

    Separate abstracts were prepared for the 25 papers presented at a workshop focusing on chromosomal structure, gene regulation, recombination, DNA repair, and cell type control, that have been obtained by experimental approaches incorporating the new technologies of yeast DNA transformation, molecular cloning, and DNA sequence analysis. (KRM)

  14. Nineteenth annual actinide separations conference: Conference program and abstracts

    SciTech Connect (OSTI)

    Bronson, M.

    1995-12-31

    This report contains the abstracts from the conference presentations. Sessions were divided into the following topics: Waste treatment; Spent fuel treatment; Issues and responses to Defense Nuclear Facility Safety Board 94-1; Pyrochemical technologies; Disposition technologies; and Aqueous separation technologies.

  15. Human Genome Program Report. Part 2, 1996 Research Abstracts

    DOE R&D Accomplishments [OSTI]

    1997-11-01

    This report contains Part 2 of a two-part report to reflect research and progress in the US Department of Energy Human Genome Program from 1994 through 1996, with specified updates made just before publication. Part 2 consists of 1996 research abstracts. Attention is focused on the following: sequencing; mapping; informatics; ethical, legal, and social issues; infrastructure; and small business innovation research.

  16. Abstract and research accomplishments of University Coal Research Projects

    SciTech Connect (OSTI)

    1995-06-01

    The Principal Investigators of the grants supported by the University Coal Research Program were requested to submit abstracts and highlight accomplishments of their respective projects in time for distribution at a conference on June 13--14, 1995 at Tennessee State University in Nashville, Tennessee. This book is a compilation of the material received in response to that request. For convenience, the 70 grants reported in this book are stored into eight technical areas, Coal Science, Coal Surface Science, Reaction Chemistry, Advanced Process Concepts, Engineering Fundamentals and Thermodynamics, Environmental Science, high Temperature Phenomena, and Special topics. Indexes are provided for locating projects by subject, principal investigators, and contracting organizations. Each extended abstract describes project objectives, work accomplished, significance to the Fossil Energy Program, and plans for the next year.

  17. Microsoft Word - Delft_04STC-Abstract.doc

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Flutter Speed Predictions for MW-Sized Wind Turbine Blades Don W. Lobitz Sandia National Laboratories* Albuquerque, New Mexico 87185 dwlobit@sandia.gov Abstract Classical aeroelastic flutter instability historically has not been a driving issue in wind turbine design. In fact, rarely has this issue even been addressed in the past. Commensurately, of the wind turbines that have been built, rarely has classical flutter ever been observed. However, with the advent of larger turbines fitted with

  18. Microsoft Word - SoS abstract-bio_template.doc

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ronald E. Hatcher Science on Saturday Lecture Series 10 January 2015 Consciousness and the Social Brain Dr. Michael Graziano Professor of Psychology, Princeton University Princeton New Jersey ABSTRACT: What is consciousness and how can a brain, a mere collection of neurons, create it? In my lab we are developing a theoretical and experimental approach to these questions. The theory begins with our ability to attribute awareness to others. The human brain has a complex circuitry that allows it to

  19. Microsoft Word - Call for Abstracts Student Research Forum.docx

    Office of Environmental Management (EM)

    Call For Abstracts (Student Research Forum) The 2016 National Environmental Justice Conference & Training Program will be held in collaboration with the Ninth Annual National Conference on Health Disparities, with the theme of "A National Dialogue for Building Healthy Communities." The mission of the Joint Conference is to focus on policies, research interventions, and programs that address prevention, social determinants, and personal responsibility in reducing health disparities

  20. Small Business Innovation Research: Abstracts of Phase 1 awards, 1994

    SciTech Connect (OSTI)

    Not Available

    1994-12-31

    The Small Business Innovation Research (SBIR) program enables DOE to obtain effective, innovative solutions to important problems through the private sector, which has a commercial incentive to pursue the resulting technology and bring it to the marketplace. The growing number of awardees, many of them started in business in response to SBIR solicitations, is becoming a significant resource for the solution of high risk, high technology problems for the Department. As detailed here, this publication describes the technical efforts for SBIR Phase 1 awards in 1994. It is intended for the educated layman, and may be of particular interest to potential investors who wish to get in on the ground floor of exciting opportunities. Contained in this booklet are abstracts of the Phase 1 awards made in FY 1994 under the DOE SBIR program. The 212 Phase 1 projects described here were selected in a highly competitive process from a total of 2,276 grant applications received in response to the 1994 DOE annual SBIR Solicitation. The selections for awards were made on scientific and technical merit, as judged against the specific criteria listed in the Solicitation. Conclusions were reached on the basis of detailed reports returned by reviewers drawn from DOE laboratories, universities, private industry, and government. (Any discrepancies noted in prior DOE releases naming the firms selected for awards are due either to the firm changing its name after the award selection or to the firm not proceeding to a signed grant.) It is expected that between one-third and one-half of the Phase 1 projects will be continued into Phase 2. The work described in the abstracts is novel, high-risk research, but the benefits will also be potentially high if the objectives are met. Brief comments on the potential applications are given after each abstract. Individuals and organizations with an interest in the research described are encouraged to contact the appropriate small business directly.

  1. Abstracted publications related to the Hanford environment, 1980 to 1988

    SciTech Connect (OSTI)

    Becker, C.D.; Gray, R.H.

    1989-05-01

    This abstracted bibliography provides a reference to the diverse environmental activities conducted on the Hanford Site from 1980 through 1988. It includes 500 reports and articles that were prepared largely by onsite contractors and the Department of Energy. Documents contained here were separated into eight subject areas: air and atmosphere, aquatic ecology, effluents and wastes, geology and hydrology, Hanford Site, radioactivity, terrestrial ecology, and socioeconomics. These areas form the basis of a key word index, which is intended to help the reader locate subjects of interest. An author index is also included.

  2. Microsoft Word - CYCLOTRON_2011_ABSTRACT_REPET_nica

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Draw a Level Scheme? Dr. N. Nica Cyclotron Institute TAMU Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA Abstract Drawing a level scheme is a procedure of figuring the levels and decaying transitions of an excited nucleus, which nowadays is a well- known, rather technical procedure. In a previous talk we showed that some extra correlations exist in the gamma-ray coincidence spectra which we were able to sample in the decay of high-spin states of several nuclei

  3. Laboratory technology research: Abstracts of FY 1998 projects

    SciTech Connect (OSTI)

    1998-11-01

    The Laboratory Technology Research (LTR) program supports high-risk, multidisciplinary research partnerships to investigate challenging scientific problems whose solutions have promising commercial potential. These partnerships capitalize on two great strengths of the country: the world-class basic research capability of the DOE Office of Science (SC) national laboratories and the unparalleled entrepreneurial spirit of American industry. Projects supported by the LTR program in FY 1998 explore the applications of basic research advances relevant to DOE`s mission over a full range of scientific disciplines. The program presently emphasizes three critical areas of mission-related research: advanced materials, intelligent processing and manufacturing research, and environmental and biomedical research. Abstracts for 85 projects are contained in this report.

  4. 15. international conference on plant growth substances: Program -- Abstracts

    SciTech Connect (OSTI)

    1995-12-31

    Since the 14th Conference in Amsterdam in 1991, progress in plant hormone research and developmental plant biology has been truly astonishing. The five ``classical`` plant hormones, auxin, gibberellin, cytokinin, ethylene, and abscisic acid, have been joined by a number of new signal molecules, e.g., systemin, jasmonic acid, salicylic acid, whose biosynthesis and functions are being understood in ever greater detail. Molecular genetics has opened new vistas in an understanding of transduction pathways that regulate developmental processes in response to hormonal and environmental signals. The program of the 15th Conference includes accounts of this progress and brings together scientists whose work focuses on physiological, biochemical, and chemical aspects of plant growth regulation. This volume contains the abstracts of papers presented at this conference.

  5. Abstracts of Phase 1 awards, (fiscal year) 1987

    SciTech Connect (OSTI)

    Not Available

    1987-01-01

    Contained in this booklet are abstracts of the Phase I awards made in Fiscal Year 1987 under the Small Business Innovation Research (SBIR) program in the Department of Energy (DOE). The program is designed for implementation in a three-phase process, with Phase I determining the scientific or technical merit and feasibility of ideas proposed for investigation. The period of performance in this initial phase is relatively brief, typically about 6 months, and the awards are limited to $50,000. Phase II is the principal research or research and development effort, and the awards are as high as $500,000 for work to be performed in periods of up to 2 years. Phase III is the commercial application. The 111 Phase I projects described were selected in a highly competitive process from a total of 942 proposals received in response to the 1987 Solicitation. They cover the fields of chemistry, materials, control systems, plant natural products, instrumentation, nuclear medicine, health and environmental effects, high energy physics, particle accelerators, nuclear physics, plasma diagnostics and confinement, fusion energy systems, robotics and remote systems, nuclear reactors, space nuclear power, fuel cycle, decontamination/decommissioning, commputers in nuclear plants, coal, enhanced oil recovery/tar sands, fossil energy, photovoltaics, solar thermal, ceramics for heat engines, and industrial separation, conversion and recovery processes. (DLC)

  6. 4th Annual DOE-ERSP PI Meeting: Abstracts

    SciTech Connect (OSTI)

    Hazen, Terry C.

    2009-03-01

    This contains abstracts from the 2009 Annual Environmental Remediation Sciences Program (ERSP) Principal Investigators (PI) Meeting. The ERSP seeks to advance fundamental science to understand, predict, and mitigate the impacts of environmental contamination from past nuclear weapons production and provide a scientific basis for the long-term stewardship of nuclear waste disposal. These ambitious goals cannot be achieved by any one project alone. Therefore, ERSP funds a combination of research programs at the DOE national laboratories, individual projects at universities and federal agencies, and large long(er)-term field site research. Integration of these activities to advance the ERSP goals is a constant challenge, but made significantly simpler by bringing together all funded ERSP researchers once a year to discuss the very latest research results. It is at these meetings where new ideas and/or scientific advancements in support of ERSP goals can be discussed and openly debated among all PIs in the program. The ERSP thrives, in part, on the new ideas, concepts, scientific connections, and collaborations generated as a result of these meetings. The annual PI Meeting is very much a working meeting with three major goals: (1) to provide opportunities for scientific interaction among the ERSP scientists, a critical element for the program; (2) to provide the ERSP program staff with an opportunity to evaluate the progress of each program and project; and (3) to showcase the ERSP to interested parties within DOE and within other federal agencies In addition to program managers from within OBER, there will be representatives from other offices within DOE and other federal agencies in attandance at the meeting.

  7. 2nd Annual DOE-ERSP PI Meeting: Abstracts

    SciTech Connect (OSTI)

    Hazen, Terry C.

    2007-03-14

    Welcome to the annual 2007 Environmental Remediation Sciences Program (ERSP) Principal Investigators (PIs) meeting. The purpose of this meeting is to bring together all of the lead PIs and key Co-PIs in the program to share and review the results of funded research from the past year. This meeting allows program managers from the Environmental Remediation Sciences Division (ERSD) within the Office of Biological and Environmental Research (OBER) to gauge the progress and significance of the funded research, and it is also an important venue to showcase ERSP research to interested parties within DOE and other invited federal agency representatives. Additionally, these meetings should serve as an opportunity for funded PIs to view their research in the context of the entire ERSP portfolio. Past ERSP meetings have been very important venues for detailed discussion of research results among PIs, development of new research ideas, fostering new collaborations and discussion with ERSD program managers on future research efforts and/or initiatives within the program. In short, these meetings are an important resource for both program managers and PIs. There will be only one ERSP PI meeting for 2007. In years past, ERSD has sponsored two PI meetings, one in the spring and a separate meeting in the fall that focused primarily on field research. However, this format tends to insulate laboratory-based research from the field research sponsored in the program and is incompatible with the ERSD view that laboratory-based research should progress towards understanding the relevant processes in natural environments at the field scale. Therefore the agenda for this year's PI meeting is well integrated with both lab-based and field-based projects, to allow for detailed discussion between PIs involved in each area. In the agenda, you will notice a more relaxed format than in years past. This year's meeting spans four days, but is less heavily regimented in terms of oral presentations and allows ample time for informal group discussions and poster presentations. The intent of this format is to foster informal discussion of research among PIs and ERSD program managers-discussion that is a hallmark of previous ERSD-sponsored meetings. Morning sessions will be dominated by oral presentations from PIs chosen by ERSD program managers to communicate key topics of research within the program. There is ample time during lunch and in the early afternoon for small group discussions/meetings prior to convening again in the later afternoon for oral presentations on field research conducted at the Integrated Field-Scale Subsurface Research Challenge sites (IFCs). Formal poster sessions begin after dinner. Abstracts for all poster presentations are listed within this meeting booklet. On behalf of the ERSD program managers and staff, we thank you for attending this year's PI meeting. We look forward to discussing the results of your research with you and your ideas for the future, and we hope that this meeting will continue as an important tradition for PIs in the program and serve as a valuable resource for your investigations.

  8. Selected translated abstracts of Russian-language climate-change publications: II, Clouds. Issue 159

    SciTech Connect (OSTI)

    Burtis, M.D.

    1994-01-01

    This report presents abstracts (translated into English) of important Russian-language literature concerning clouds as they relate to climate change. In addition to the bibliographic citations and abstracts translated into English, this report presents the original citations and abstracts in Russian. Author and title indexes are included to assist the reader in locating abstracts of particular interest.

  9. 11th Topical conference high-temperature plasma diagnostics. Book of abstracts

    SciTech Connect (OSTI)

    1996-06-01

    This report contains abstracts from the 11th topical conference on high-temperature plasma diagnostics.

  10. Selected translated abstracts of Russian-language climate-change publications. 4: General circulation models

    SciTech Connect (OSTI)

    Burtis, M.D.; Razuvaev, V.N.; Sivachok, S.G.

    1996-10-01

    This report presents English-translated abstracts of important Russian-language literature concerning general circulation models as they relate to climate change. Into addition to the bibliographic citations and abstracts translated into English, this report presents the original citations and abstracts in Russian. Author and title indexes are included to assist the reader in locating abstracts of particular interest.

  11. Selected translated abstracts of Russian-language climate-change publications: I, Surface energy budget

    SciTech Connect (OSTI)

    Burtis, M.D.

    1992-09-01

    This report presents abstracts (translated into English) of important Russian-language literature concerning the surface energy budget as it relates to climate change. In addition to the bibliographic citations and abstracts translated into English, this report presents the original citations and abstracts in Russian. Author and title indexes are included, to assist the reader in locating abstracts of particular interest.

  12. Abstract Measurement

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Measurement of the ν µ charged current π + to quasi-elastic cross section ratio on mineral oil in a 0.8 GeV neutrino beam Steven K. Linden 2011 Charged current single pion production (CCπ + ) and charged current quasi-elastic scatter- ing (CCQE ) are the most abundant interaction types for neutrinos at energies around 1 GeV, a region of great interest to oscillation experiments. The cross-sections for these pro- cesses, however, are not well understood in this energy range. This dissertation

  13. Network Abstractions:

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Laboratory U.S. Department of Energy | Office of Science Ongoing Science Revolution Data-intensive Science * Era of 'Big-Data' Exascale, HPC and Future Data Centers * Optics to...

  14. Abstract As

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    The aerodynamic performance of various HAWT configurations was established using PROP for personal computers (Tangler,1987). The PROP family of codes is somewhat of an...

  15. Proceedings of the international conference on nuclear physics, August 24-30, 1980, Berkeley, California. Volume 1. Abstracts. [Berkeley, California, August 24-30, 1980 (abstracts only)

    SciTech Connect (OSTI)

    Not Available

    1980-01-01

    This volume contains all abstracts (931) received by the conference organizers before June 20, 1980. The abstracts are grouped according to the following topics: nucleon-nucleon interactions, free and in nuclei; distribution of matter, charge, and magnetism; exotic nuclei and exotic probes; giant resonances and other high-lying excitations; applications of nuclear science; nuclei with large angular momentum and deformation; heavy-ion reactions and relaxation phenomena; new techniques and instruments; pion absorption and scattering by nuclei; and miscellaneous. Some of these one-page abstracts contain data. A complete author index is provided. (RWR)

  16. Advanced light source: Compendium of user abstracts and technical reports,1993-1996

    SciTech Connect (OSTI)

    None, None

    1997-04-01

    This compendium contains abstracts written by users summarizing research completed or in progress from 1993-1996, ALS technical reports describing ongoing efforts related to improvement in machine operations and research and development projects, and information on ALS beamlines planned through 1998. Two tables of contents organize the user abstracts by beamline and by area of research, and an author index makes abstracts accessible by author and by principal investigator. Technical details for each beamline including whom to contact for additional information can be found in the beamline information section. Separate abstracts have been indexed into the database for contributions to this compendium.

  17. CALL FOR ABSTRACTS for the 2014 National Environmental Justice Conference and Training Program

    Broader source: Energy.gov [DOE]

    The 2014 National Environmental Justice Conference and Training Program planners are inviting individuals to submit abstracts, not to exceed two pages, related to environmental justice.

  18. Program and abstracts: IS-MPMI sixth International Symposium on Molecular Plant-Microbe Interactions

    SciTech Connect (OSTI)

    Not Available

    1992-12-31

    This volume provides abstracts of oral and poster presentations made for the Sixth International Symposium on Molecular Plant-Microbe Interactions.

  19. Competition between abstraction and exchange channels in H + HCN reaction: Full-dimensional quantum dynamics

    SciTech Connect (OSTI)

    Jiang, Bin; Guo, Hua

    2013-12-14

    Dynamics of the title reaction is investigated on an ab initio based potential energy surface using a full-dimensional quantum wave packet method within the centrifugal sudden approximation. It is shown that the reaction between H and HCN leads to both the hydrogen exchange and hydrogen abstraction channels. The exchange channel has a lower threshold and larger cross section than the abstraction channel. It also has more oscillations due apparently to quantum resonances. Both channels are affected by long-lived resonances supported by potential wells. Comparison with experimental cross sections indicates underestimation of the abstraction barrier height.

  20. http://www.opticsinfobase.org/abstract.cfm?uri=ao-22-1-95

    National Nuclear Security Administration (NNSA)

    Explosion dust particle size measurements R. G. Pinnick, G. Fernandez, and B. D. Hinds Applied Optics, Vol. 22, Issue 1, pp. 95-102 (1983) doi:10.1364/AO.22.000095 » View Full Text: Acrobat PDF (1689 KB) Citation R. G. Pinnick, G. Fernandez, and B. D. Hinds, "Explosion dust particle size measurements," Appl. Opt. 22, 95-102 (1983) http://www.opticsinfobase.org/abstract.cfm?URI=ao-22-1-95 Abstract * References (10) * Affiliations * Cited By * Abstract In situ measurements of the sizes

  1. Abstract: Design and Demonstration of an Advanced Agricultural Feedstock Supply System for Lignocellulosic Bioenergy Production

    Broader source: Energy.gov [DOE]

    This abstract from FDC Enterprises discusses the impact and objectives for project that designs equipment improvements to streamline the harvest, staging, and hauling costs associated with supplying materials to biorefineries.

  2. Eighteenth symposium on biotechnology for fuels and chemicals: Program and abstracts

    SciTech Connect (OSTI)

    1996-12-31

    This volume provides the proceedings for the Eighteenth Symposium on Biotechnology for Fuels and Chemicals held May 5-9, 1996 in Gatlinburg, Tennessee. The proceedings contains abstracts for oral and poster presentations.

  3. Regulatory and technical reports (abstract index journal): Annual compilation for 1996, Volume 21, No. 4

    SciTech Connect (OSTI)

    Sheehan, M.A.

    1997-04-01

    This compilation is the annual cumulation of bibliographic data and abstracts for the formal regulatory and technical reports issued by the U.S. Nuclear Regulatory Commission (NRC) Staff and its contractors.

  4. Regulatory and technical reports (abstract index journal): Annual compilation for 1994. Volume 19, Number 4

    SciTech Connect (OSTI)

    1995-03-01

    This compilation consists of bibliographic data and abstracts for the formal regulatory and technical reports issued by the US Nuclear Regulatory Commission (NRC) Staff and its contractors. It is NRC`s intention to publish this compilation quarterly and to cumulate it annually. The main citations and abstracts in this compilation are listed in NUREG number order. These precede the following indexes: secondary report number index, personal author index, subject index, NRC originating organization index (staff reports), NRC originating organization index (international agreements), NRC contract sponsor index (contractor reports), contractor index, international organization index, and licensed facility index. A detailed explanation of the entries precedes each index.

  5. Pacific Northwest Laboratory annual report for 1979 to the DOE Assistant Secretary for Environment. Part 1. Biomedical sciences. [Lead abstract

    SciTech Connect (OSTI)

    Not Available

    1980-02-01

    Separate abstracts were prepared for the 101 individual papers presented in this annual report. (ERB)

  6. Symposium on intermediate-range atmospheric-transport processes and technology assessment. [Lead Abstract

    SciTech Connect (OSTI)

    Not Available

    1981-10-01

    Separate abstracts were prepared for the 47 papers in this proceedings. The purpose of this meeting was to assess the state of the art of modeling atmospheric transport processes 10 to 100 km downwind of point and area sources of pollution. (KRM)

  7. Role of point defects/defect complexes in silicon device processing. Book of abstracts, fourth workshop

    SciTech Connect (OSTI)

    Not Available

    1994-06-01

    The 41 abstracts are arranged into 6 sessions: impurities and defects in commercial substrates: their sources, effects on material yield, and material quality; impurity gettering in silicon: limits and manufacturability of impurity gettering and in silicon solar cells; impurity/defect passivation; new concepts in silicon growth: improved initial quality and thin films; and silicon solar cell design opportunities.

  8. Biology and Medicine Division annual report, 1981-1982. [Lead abstract

    SciTech Connect (OSTI)

    Not Available

    1983-04-01

    Separate abstracts were prepared for the 61 research reports in the 1981-1982 annual report for the Biology and Medicine Division of the Lawrence Berkeley Laboratory. Programs reviewed include research medicine, Donner Pavilion, environmental physiology, radiation biophysics and structural biophysics. (KRM)

  9. Programming Challenges Abstracts | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Programming Challenges Abstracts and Biographies Advanced Scientific Computing Research (ASCR) ASCR Home About Research Applied Mathematics Computer Science Exascale Tools Workshop Programming Challenges Workshop Architectures I Workshop External link Architectures II Workshop External link Next Generation Networking Scientific Discovery through Advanced Computing (SciDAC) ASCR SBIR-STTR Facilities Science Highlights Benefits of ASCR Funding Opportunities Advanced Scientific Computing Advisory

  10. Regulatory and technical reports (abstract index journal): Annual compilation for 1997. Volume 22, Number 4

    SciTech Connect (OSTI)

    1998-04-01

    This journal includes all formal reports in the NUREG series prepared by the NRC staff and contractors; proceedings of conferences and workshops; as well as international agreement reports. The entries in this compilation are indexed for access by title and abstract, secondary report number, personal author, subject, NRC organization for staff and international agreements, contractor, international organization, and licensed facility.

  11. Abstraction of Models for Pitting and Crevice Corrosion of Drip Shield and Waste Package Outer Barrier

    SciTech Connect (OSTI)

    K. Mon

    2001-08-29

    This analyses and models report (AMR) was conducted in response to written work direction (CRWMS M and O 1999a). ICN 01 of this AMR was developed following guidelines provided in TWP-MGR-MD-000004 REV 01, ''Technical Work Plan for: Integrated Management of Technical Product Input Department'' (BSC 2001, Addendum B). The purpose and scope of this AMR is to review and analyze upstream process-level models (CRWMS M and O 2000a and CRWMS M and O 2000b) and information relevant to pitting and crevice corrosion degradation of waste package outer barrier (Alloy 22) and drip shield (Titanium Grade 7) materials, and to develop abstractions of the important processes in a form that is suitable for input to the WAPDEG analysis for long-term degradation of waste package outer barrier and drip shield in the repository. The abstraction is developed in a manner that ensures consistency with the process-level models and information and captures the essential behavior of the processes represented. Also considered in the model abstraction are the probably range of exposure conditions in emplacement drifts and local exposure conditions on drip shield and waste package surfaces. The approach, method, and assumptions that are employed in the model abstraction are documented and justified.

  12. Seventeenth symposium on biotechnology for fuels and chemicals. Program and abstracts

    SciTech Connect (OSTI)

    1995-05-01

    This volume contains the abstracts of oral and poster presentations made at the Seventeenth Symposium on Biotechnology for Fuels and Chemicals. Session titles include Thermal, Chemical, and Biological Processing; Applied Biological Research; Bioprocessing Research; Special Topics Discussion Groups; Process Economics and Commercialization; and Environmental Biotechnology.

  13. A Global View Programming Abstraction for Transitioning MPI Codes to PGAS Languages

    SciTech Connect (OSTI)

    Mintz, Tiffany M [ORNL] [ORNL; Hernandez, Oscar R [ORNL] [ORNL; Bernholdt, David E [ORNL] [ORNL

    2014-01-01

    The multicore generation of scientific high performance computing has provided a platform for the realization of Exascale computing, and has also underscored the need for new paradigms in coding parallel applications. The current standard for writing parallel applications requires programmers to use languages designed for sequential execution. These languages have abstractions that only allow programmers to operate on the process centric local view of data. To provide suitable languages for parallel execution, many research efforts have designed languages based on the Partitioned Global Address Space (PGAS) programming model. Chapel is one of the more recent languages to be developed using this model. Chapel supports multithreaded execution with high-level abstractions for parallelism. With Chapel in mind, we have developed a set of directives that serve as intermediate expressions for transitioning scientific applications from languages designed for sequential execution to PGAS languages like Chapel that are being developed with parallelism in mind.

  14. Statement Abstract Of Steve Berberich California ISO Before the QER Stakeholder Meeting

    Broader source: Energy.gov (indexed) [DOE]

    Abstract Of Steve Berberich California ISO Before the QER Stakeholder Meeting Portland, Oregon July 11, 2014 For over 100 years, utility planners have compared load forecasts to available resources, and developed transmission plans to ensure adequate energy was delivered to load centers. But the grid of the past is quickly being replaced by a new construct, wherein utility-grade and consumer-owned renewable power sources are shaping energy supply and consumption in unprecedented ways. Even more

  15. Evgeniy Koshchiy Cyclotron Institute, Texas A&M University Abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Experiments with Array for Nuclear Astrophysics and Structure with Exotic Nuclei (ANASEN) Evgeniy Koshchiy Cyclotron Institute, Texas A&M University Abstract The Array for Nuclear Astrophysics Structure with Exotic Nuclei (ANASEN) is a new active target detector array designed for direct and indirect measurement of the astrophysically important reaction cross-sections (such as (α,p) reactions), proton and alpha elastic and inelastic scattering and (d,p) reactions to study structure of

  16. Microsoft Word - RM1_Tidal Turbine_ARL_PTO_OMAE_Paper-Abstract.docx

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    xx by ASME 31st International Conference on Ocean Offshore and Arctic Engineering (OMAE) June 10-15, 2012, Rio de Janeiro, Brazil OMAE 2012 - 84074 Marine Hydrokinetic Turbine Power-Take-Off Design for Optimal Performance and Low Impact on Cost-of-Energy ABSTRACT Marine hydrokinetic devices are becoming a popular method for generating marine renewable energy worldwide. These devices generate electricity by converting the kinetic energy of moving water, wave motion or currents, into electrical

  17. Microsoft Word - RM1_Tidal Turbine_NREL Lawson, Li Y, Sale_2011-Abstract.doc

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Proceedings of the 30th International Conference on Ocean, Offshore, and Arctic Engineering OMAE2011 June 19-24, 2011, Rotterdam, The Netherlands OMAE2011-49863 DEVELOPMENT AND VERIFICATION OF A COMPUTATIONAL FLUID DYNAMICS MODEL OF A HORIZONTAL-AXIS TIDAL CURRENT TURBINE ABSTRACT This paper describes the development of a computational uid dynamics (CFD) methodology to simulate the hydrodynamics of horizontal-axis tidal current turbines (HATTs). First, an HATT blade was designed using the blade

  18. Abstract H13M-01 Site Characteriza:on for a Deep Borehole Field Test

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    gov Excep&onal Service in the Na&onal Interest We lead the nation in addressing the complex intersection between the Earth and engineered environments, providing technical solutions to ensure our nation's strength and security. www.sandia.gov Excep&onal Service in the Na&onal Interest Excep&onal Service in the Na&onal Interest Monday, December 14 Abstract H13M-01 Site Characteriza:on for a Deep Borehole Field Test Monday, 14 December 2015 13:40 - 13:55 Moscone West - 3018

  19. Advanced Light Source Compendium of User Abstracts andTechnical Reports 1997

    SciTech Connect (OSTI)

    Cross, J.; Devereaux, M.K.; Dixon, D.J.; Greiner, A.; editors

    1998-07-01

    The Advanced Light Source (ALS), a national user facility located at Ernest Orlando Lawrence Berkeley National Laboratory of the University of California is available to researchers from academia, industry, and government laboratories. Operation of the ALS is funded by the Department of Energy's Office of Basic Energy Sciences. This Compendium contains abstracts written by users summarizing research completed or in progress during 1997, ALS technical reports describing ongoing efforts related to improvement in machine operations and research and development projects, and information on ALS beamlines planned through 1998.

  20. SIAM conference on applications of dynamical systems. Abstracts and author index

    SciTech Connect (OSTI)

    Not Available

    1992-12-31

    A conference (Oct.15--19, 1992, Snowbird, Utah; sponsored by SIAM (Society for Industrial and Applied Mathematics) Activity Group on Dynamical Systems) was held that highlighted recent developments in applied dynamical systems. The main lectures and minisymposia covered theory about chaotic motion, applications in high energy physics and heart fibrillations, turbulent motion, Henon map and attractor, integrable problems in classical physics, pattern formation in chemical reactions, etc. The conference fostered an exchange between mathematicians working on theoretical issues of modern dynamical systems and applied scientists. This two-part document contains abstracts, conference program, and an author index.

  1. Environmental Sciences Division. Annual progress report for period ending September 30, 1980. [Lead abstract

    SciTech Connect (OSTI)

    Auerbach, S.I.; Reichle, D.E.

    1981-03-01

    Research conducted in the Environmental Sciences Division for the Fiscal Year 1980 included studies carried out in the following Division programs and sections: (1) Advanced Fossil Energy Program, (2) Nuclear Program, (3) Environmental Impact Program, (4) Ecosystem Studies Program, (5) Low-Level Waste Research and Development Program, (6) National Low-Level Waste Program, (7) Aquatic Ecology Section, (8) Environmental Resources Section, (9) Earth Sciences Section, and (10) Terrestrial Ecology Section. In addition, Educational Activities and the dedication of the Oak Ridge National Environmental Research Park are reported. Separate abstracts were prepared for the 10 sections of this report.

  2. Twelfth symposium on biotechnology for fuels and chemicals: Program and abstracts

    SciTech Connect (OSTI)

    Scheitlin, F.M.

    1990-01-01

    This report is the program and abstracts of the twelfth symposium on biotechnology for fuels and chemicals, held on May 7--11, 1990, at Gatlinburg, Tennessee. The symposium, sponsored by the Department of Energy, Oak Ridge National Laboratory, Solar Energy Research Institute, Badger Engineers, Inc., Gas Research Institute, and American Chemical Society, consists of five sessions: Session 1, thermal, chemical, and biological processing; Session 2 and 3, applied biological research; Session 4, bioengineering research; and Session 5, biotechnology, bioengineering, and the solution of environmental problems. It also consists of a poster session of the same five subject categories.

  3. Waste Form and Indrift Colloids-Associated Radionuclide Concentrations: Abstraction and Summary

    SciTech Connect (OSTI)

    R. Aguilar

    2003-06-24

    This Model Report describes the analysis and abstractions of the colloids process model for the waste form and engineered barrier system components of the total system performance assessment calculations to be performed with the Total System Performance Assessment-License Application model. Included in this report is a description of (1) the types and concentrations of colloids that could be generated in the waste package from degradation of waste forms and the corrosion of the waste package materials, (2) types and concentrations of colloids produced from the steel components of the repository and their potential role in radionuclide transport, and (3) types and concentrations of colloids present in natural waters in the vicinity of Yucca Mountain. Additionally, attachment/detachment characteristics and mechanisms of colloids anticipated in the repository are addressed and discussed. The abstraction of the process model is intended to capture the most important characteristics of radionuclide-colloid behavior for use in predicting the potential impact of colloid-facilitated radionuclide transport on repository performance.

  4. DOE-NABIR PI Workshop: Abstracts January 31-February 2, 2000

    SciTech Connect (OSTI)

    Pratt, Mary

    2000-01-01

    The mission of the NABIR program is to provide the scientific understanding needed to use natural processes and to develop new methods to accelerate those processes for the bioremediation of contaminated soils, sediments and groundwater at U.S. Department of Energy (DOE) facilities. The program is implemented through seven interrelated scientific research elements (Assessment, Bacterial Transport, Biogeochemical Dynamics, Bimolecular Science and Engineering, Biotransformation and Biodegradation, Community Dynamics/Microbial Ecology and System Engineering, Integration, Prediction and Optimization); and through an element called Bioremediation and its Societal Implications and Concerns (BASIC), which addresses societal issues and concerns of stakeholders through communication and collaboration among all relevant groups, including community leaders and representatives, engineers, scientists, lawyers, etc. The initial emphasis of NABIR program research is on the bioremediation of metals and radionuclides in the subsurface below the root zone, including both thick vadose and saturated zones. The material presented at this year's workshop focuses on research funded in FY 1998-2000 by DOE's Office of Science through its Office of Biological and Environmental Research. Sixty-eight projects have been funded in the scientific program elements, and two have been funded in the BASIC program. Abstracts of these programs are summarized in this booklet, along with abstracts of other DOE programs related to research in the NABIR program.

  5. FFCAct Clearinghouse, directory of abstracts: Radioactive waste technical support program. Revision 2

    SciTech Connect (OSTI)

    1994-10-01

    The Federal Facility Compliance Act (FFCAct) Clearinghouse is a card catalog of information about the FFCAct and its requirements for developing Site Treatment Plans (STP). The information available in the clearinghouse includes abstracts describing computer applications, technical reports, and a list of technical experts. This report contains 61 abstracts from the database relating to radioactive waste management. The clearinghouse includes information on characterization, retrieval, treatment, storage, and disposal elements of waste management as they relate to the FFCAct and the treatment of mixed wastes. Subject areas of information being compiled include: commercial treatment capabilities; listings of technical experts for assistance in selecting and evaluating treatment options and technologies; mixed waste data and treatability groups; guidance on STP development; life-cycle costs planning estimates for facilities; references to documentation on available technologies and technology development activities; Waste Acceptance Criteria (WAC) for treatment facilities; regulatory, health and safety issues associated with treatment facilities and technologies; and computer databases, applications, and models for identifying and evaluating treatment facilities and technologies. Access to the FFCAct clearinghouse is available to the DOE and its DOE contractors involved in STP development and other FFCAct activities.

  6. ICENES `91:Sixth international conference on emerging nuclear energy systems. Program and abstracts

    SciTech Connect (OSTI)

    Not Available

    1991-12-31

    This document contains the program and abstracts of the sessions at the Sixth International Conference on Emerging Nuclear Energy Systems held June 16--21, 1991 at Monterey, California. These sessions included: The plenary session, fission session, fission and nonelectric session, poster session 1P; (space propulsion, space nuclear power, electrostatic confined fusion, fusion miscellaneous, inertial confinement fusion, {mu}-catalyzed fusion, and cold fusion); Advanced fusion session, space nuclear session, poster session 2P, (nuclear reactions/data, isotope separation, direct energy conversion and exotic concepts, fusion-fission hybrids, nuclear desalting, accelerator waste-transmutation, and fusion-based chemical recycling); energy policy session, poster session 3P (energy policy, magnetic fusion reactors, fission reactors, magnetically insulated inertial fusion, and nuclear explosives for power generation); exotic energy storage and conversion session; and exotic energy storage and conversion; review and closing session.

  7. An abstract class loader for the SSP and its implementation in TL.

    SciTech Connect (OSTI)

    Wickstrom, Gregory Lloyd; Winter, Victor Lono; Fraij, Fares; Roach, Steve; Beranek, Jason

    2004-08-01

    The SSP is a hardware implementation of a subset of the JVM for use in high consequence embedded applications. In this context, a majority of the activities belonging to class loading, as it is defined in the specification of the JVM, can be performed statically. Static class loading has the net result of dramatically simplifying the design of the SSP as well as increasing its performance. Due to the high consequence nature of its applications, strong evidence must be provided that all aspects of the SSP have been implemented correctly. This includes the class loader. This article explores the possibility of formally verifying a class loader for the SSP implemented in the strategic programming language TL. Specifically, an implementation of the core activities of an abstract class loader is presented and its verification in ACL2 is considered.

  8. Pacific Northwest Laboratory annual report for 1981 to the DOE Office of Energy Research. Part 4. Physical sciences. [Lead abstract

    SciTech Connect (OSTI)

    Nielsen, J.M.

    1982-02-01

    Separate abstracts were prepared for the 13 reports in this 1981 annual report from Battelle Pacific Northwest Laboratory which deals with the physical sciences. (KRM)

  9. Fifteenth symposium on biotechnology for fuels and chemicals: Program and abstracts

    SciTech Connect (OSTI)

    Not Available

    1993-07-01

    This collection contains 173 abstracts from presented papers and poster sessions. The five sessions of the conference were on the subjects of: (1) Thermal, Chemical, and Biological Processing, (2) Applied Biological Research, (3) Bioprocessing Research (4), Process Economics and Commercialization, and (5) Environmental Biotechnology. Examples of specific topics in the first session include the kinetics of ripening cheese, microbial liquefaction of lignite, and wheat as a feedstock for fuel ethanol. Typical topics in the second session were synergism studies of bacterial and fungal celluloses, conversion of inulin from jerusalem artichokes to sorbitol and ethanol by saccharomyces cerevisiae, and microbial conversion of high rank coals to methane. The third session entertained topics such as hydrodynamic modeling of a liquid fluidized bed bioreactor for coal biosolubilization, aqueous biphasic systems for biological particle partitioning, and arabinose utilization by xylose-fermenting yeast and fungi. The fourth session included such topics as silage processing of forage biomass to alcohol fuels, economics of molasses to ethanol in India, and production of lactic acid from renewable resources. the final session contained papers on such subjects as bioluminescent detection of contaminants in soils, characterization of petroleum contaminated soils in coral atolls in the south Pacific, and landfill management for methane generation and emission control.

  10. Radiological and Environmental Research Division, Center for Human Radiobiology. Annual report, July 1980-June 1981. [Lead abstract

    SciTech Connect (OSTI)

    Not Available

    1982-03-01

    Separate abstracts were prepared for the 22 papers of this annual report of the Center for Human Radiobiology. Abstracts were not written for 2 appendices which contain data on the exposure and radium-induced malignancies of 2259 persons whose radium content has been determined at least once. (KRM)

  11. Advanced Technology Section semiannual progress report, April 1-September 30, 1977. Volume 1. Biotechnology and environmental programs. [Lead Abstract

    SciTech Connect (OSTI)

    Pitt, W.W. Jr.; Mrochek, J.E. (comps.)

    1980-06-01

    Research efforts in six areas are reported. They include: centrifugal analyzer development; advanced analytical systems; environmental research; bioengineering research;bioprocess development and demonstration; and, environmental control technology. Individual abstracts were prepared for each section for ERA/EDB. (JCB)

  12. Columbia Basin Fish and Wildlife Authority Project Abstracts; May 25-27, Portland, Oregon, 1997 Annual Review.

    SciTech Connect (OSTI)

    Allee, Brian J.

    1997-06-26

    Abstracts are presented from the 1997 Columbia Basin Fish and Wildlife Program Review of Projects. The purpose was to provide information and education on the approximate 127 million dollars in Northwest electric ratepayer fish and wildlife mitigation projects funded annually.

  13. Carbon dioxide effects research and assessment program: flux of organic carbon by rivers to the oceans. [Lead abstract

    SciTech Connect (OSTI)

    1981-04-01

    Separate abstracts were prepared for the 15 papers presented in this workshop report. The state of knowledge about the role of rivers in the transport, storage and oxidation of carbon is the subject of this report. (KRM)

  14. Abstracts of papers presented at the LVIII Cold Spring Harbor Symposium on quantitative Biology: DNA and chromosomes

    SciTech Connect (OSTI)

    Not Available

    1993-12-31

    This volume contains the abstracts of oral and poster presentations made at the LVIII Cold Spring Harbor Symposium on Quantitative Biology entitles DNA & Chromosomes. The meeting was held June 2--June 9, 1993 at Cold Spring Harbor, New York.

  15. A select bibliography with abstracts of reports related to Waste Isolation Pilot Plant geotechnical studies (1972--1990)

    SciTech Connect (OSTI)

    Powers, D.W.; Martin, M.L.

    1993-08-01

    This select bibliography contains 941 entries. Each bibliographic entry contains the citation of a report, conference paper, or journal article containing geotechnical information about the Waste Isolation Pilot Plant (WIPP). The entries cover the period from 1972, when investigation began for a WIPP Site in southeastern New Mexico, through December 1990. Each entry is followed by an abstract. If an abstract or suitable summary existed, it has been included; 316 abstracts were written for other documents. For some entries, an annotation has been provided to clarify the abstract, comment on the setting and significance of the document, or guide the reader to related reports. An index of key words/phrases is included for all entries.

  16. Developmental Control of Lignification in Stems of Lowland Switchgrass...

    Office of Scientific and Technical Information (OSTI)

    Sponsoring Org: USDOE Office of Science (SC), Biological and Environmental Research (BER) Country of Publication: United States Language: English Word Cloud More Like This Full ...

  17. Developing a low input and sustainable switchgrass feedstock...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Microbes to Increase Feedstock Production Potential of Diazorphic, Endophytic Bacteria Associated with Sugarcane for Energycane Production Symbiosis Conference Speaker and...

  18. Regulatory and technical reports (abstract index journal): Compilation for first quarter 1996, January--March. Volume 21, Number 1

    SciTech Connect (OSTI)

    1996-06-01

    This journal includes all formal reports in the NUREG series prepared by the NRC staff and contractors, proceedings of conferences and workshops, grants, and international agreement reports. The entries in this compilation are indexed for access by title and abstract, secondary report number, personal author, subject, NRC organization for staff and international agreements, contractor, international organization, and licensed facility.

  19. Regulatory and technical reports (abstract index journal): Compilation for second quarter 1997 April--June. Volume 22, Number 2

    SciTech Connect (OSTI)

    1997-10-01

    This journal includes all formal reports in the NUREG series prepared by the NRC staff and contractors; proceedings of conferences and workshops; as well as international agreement reports. The entries in this compilation are indexed for access by title and abstract, secondary report number, personal author, subject, NRC organization for staff and international agreements, contractor, international organization, and licensed facility.

  20. Regulatory and technical reports (abstract index journal). Volume 20, No. 1: First quarterly January--March 1995

    SciTech Connect (OSTI)

    1995-07-01

    This journal includes all formal reports in the NUREG series prepared by the NRC staff and contractors; proceedings of conferences and workshops; as well as international agreement reports. The entries in this compilation are indexed for access by title and abstract, secondary report number, personal author, subject, NRC organization for staff and international agreements, contractor, international organization, and licensed facility.

  1. Regulatory and technical reports: Abstract index journal. Volume 20, No. 3, Compilation for third quarter 1995, July--September

    SciTech Connect (OSTI)

    1996-01-01

    This journal includes all formal reports in the NUREG series prepared by the NRC staff and contractors; proceedings of conferences and workshops; as well as international agreement reports. The entries in this compilation are indexed for access by title and abstract, secondary report number, personal author, subject, NRC organization for staff and international agreements, contractor, international organization, and licensed facility.

  2. Regulatory and technical reports (abstract index journal), Compilation for third quarter 1993, July--September. Volume 18, No. 3

    SciTech Connect (OSTI)

    Not Available

    1993-11-01

    This journal includes all formal reports in the NUREG series prepared by the NRC staff and contractors, proceedings of conferences and workshops, grants, and international agreement reports. The entries in this compilation are indexed for access by title and abstract, secondary report number, personal author, subject, NRC organization for staff and international agreements, contractor, international organization, and licensed facility.

  3. On the competition between hydrogen abstraction versus C-O bond fission in initiating dimethyl ether combustion

    SciTech Connect (OSTI)

    Francisco, J.

    1999-07-01

    There has been a growing interest in the potential use of dimethyl ether (DME) as a diesel fuel in compression ignition engines. There are two initiation steps involved in the combustion of DME, one involving C-O bond fission and the other involving hydrogen abstraction by molecular oxygen. The kinetics and thermodynamics of C-O bond fission were explored computationally in a previous paper. The present paper addresses the competing process--hydrogen abstraction by molecular oxygen. Ab initio molecular orbital calculations are used to study the structures and energetics of the reactants, products, and the transition state for the CH{sub 3}OCH{sub 3} + O{sub 2} reaction. The calculations predict a barrier for hydrogen abstraction from CH{sub 3}OCH{sub 3} by O{sub 2} of 47.4 kcal/mol. This is lower than the barrier height for C-O bond fission previously calculated to be 81.1 kcal/mol. The results support values used in current models for the combustion of DME. Moreover, an examination of rates for C-O bond fission versus hydrogen abstraction by O{sub 2} suggests that the bimolecular process is the dominant pathway.

  4. Environmental Sciences Division annual progress report for period ending September 30, 1982. Environmental Sciences Division Publication No. 2090. [Lead abstract

    SciTech Connect (OSTI)

    Not Available

    1983-04-01

    Separate abstracts were prepared for 12 of the 14 sections of the Environmental Sciences Division annual progress report. The other 2 sections deal with educational activities. The programs discussed deal with advanced fuel energy, toxic substances, environmental impacts of various energy technologies, biomass, low-level radioactive waste management, the global carbon cycle, and aquatic and terrestrial ecology. (KRM)

  5. ABSTRACTS OF PAPERS PUBLISHED

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... Rev. Lett. 92, 112301 (2004). Azimuthal Anisotropy at RHIC: the First and Fourth Harmonics, J. Adams et al. (STAR Collaboration), Phys. Rev. Lett. 92, 062301 (2004). 0 ...

  6. abstract-grady

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Building An Integrated Activity-Based and Dynamic Network Assignment Model For Sacramento Area Council of Governments (SACOG) Brian Grady (RSG) and/or Joe Castiglione (RSG) List of Authors ================ Joe Castiglione, Resource Systems Group, Inc. 29 Belmont Street, Somerville, MA 02143 This email address is being protected from spambots. You need JavaScript enabled to view it. Brian Grady, Resource Systems Group, Inc. 55 Railroad Row, White River Junction, VT 05001 802-295-4999 This email

  7. ABSTRACTS OF PAPERS PUBLISHED

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    S. Goriely, H. Akimune, H. Harada, F. Kitatani, S. Goko, H. Toyokawa, K. Yamada, T. Kondo, O. Itoh, M. Kamata, T. Yamagata, Y.-W. Lui, I. Daoutidis, D. P. Arteaga, S. Hilaire,...

  8. bowers_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    RESNICK INSTITUTE + LMI-EFRC SEMINAR 101 Guggenheim Lab, Lees-Kubota Hall Refreshments at 2:45 in the lobby resnick.caltech.edu + lmi.caltech.edu John E. Bowers Energy e ciency is...

  9. ABSTRACTS OF PAPERS PUBLISHED

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... Effect of medium dependent binding energies on inferring the temperatures and freeze-out ... A830, 693c (2009). From 0 to 5000 in 2x10 24 seconds: Entropy production in relativistic ...

  10. ABSTRACTS OF PAPERS PUBLISHED

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... How Stable are the Heaviest Nuclei, J.B. Natowitz, Physics 1, 12 (2008). VI-3 Effect of ... Rev. C 78, 037902 (2008). Decoherence and entropy production in relativistic nuclear ...

  11. ABSTRACTS OF PAPERS PUBLISHED

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... In particular, the breakup of 8 B is described in terms of ... TRIUMF M13 beamline will enter a large volume, high field ... a critical role in the search for a quark-gluon plasma. ...

  12. scielzo_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Neutrino a nd n eutron s pectroscopy u sing t rapped i ons Dr. N .D. S cielzo Lawrence L ivermore N ational L aboratory The neutrinos and neutrons emitted in nuclear beta decay can be precisely studied using radioactive ions held in a radiofrequency---quadrupole ion trap. When a radioactive ion decays in the trap, the recoil---daughter nucleus and emitted particles emerge from the ~1---mm 3 trap volume without scattering and propagate unobstructed through vacuum. This allows the momentum and

  13. ABSTRACTS FOR PAPERS SUBMITTED

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    FOR PAPERS SUBMITTED April 1, 2001 - March 31, 2002 Mid-rapidity and Λ Λ Production in Au+Au Collisions at NN S = 103 GeV STAR Collaboration Phys. Rev. Lett. (submitted) We report the first measurement of strange ( and anti-strange ) Λ ) Λ ( baryon production from NN S = 130 GeV Au + Au collisions at the Relativistic Heavy Ion Collider (RHIC). Rapidity density and transverse mass distributions at mid-rapidity are presented as a function of centrality. The yield of ( and ) Λ ) (Λ hyperons

  14. ABSTRACTS OF PAPERS PUBLISHED

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    OF PAPERS PUBLISHED April 1, 2001 - March 31, 2002 Isoscalar Giant Resonances in 28 Si and the Mass Dependence of Nuclear Compressibility D. H. Youngblood, Y. -W. Lui, and H. L. Clark Phys. Rev. C 65, 034302 (2002) The giant resonance region from 8 MeV<E x <55 MeV in 28 Si has been studied with inelastic scattering of 240 MeV α particles at small angles including 0°. Strength corresponding to 81±10%, 68±9%, and 15±4% of the isoscalar E0, E2, and E1 sum rules, respectively, was

  15. ABSTRACTS OF PAPERS PUBLISHED

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    8 - March 31, 2009 Giant resonances in 116 Sn from 240 MeV 6 Li scattering, X. Chen, Y.-W. Lui, H.L. Clark, Y. Tokimoto, and D.H. Youngblood, Phys. Rev. C 79, 024320 (2009). Astrophysical S factor for the radiative capture 12 N(p,γ) 13 O determined from the 14 N( 12 N, 13 O) 13 C proton transfer reaction, A. Banu, T. Al-Abdullah, C. Fu, C.A. Gagliardi, R.E. Tribble, Y. Zhai, F. Carstoiu, V. Burjan, and V. Kroha, Phys Rev C 79, 025805 (2009). A new astrophysical S factor for the 15 N(p,γ) 16 O

  16. ABSTRACTS OF PAPERS PUBLISHED

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    9 - March 31, 2010 Elastic and inelastic scattering to low-lying states of 58 Ni and 90 Zr using 240 MeV 6 Li, Krishichayan, X. Chen, Y.-W. Lui, Y. Tokimoto, J. Button, and D.H. Youngblood, Phys. Rev. C 81, 014603 (2010). Isoscalar giant resonance strength in 24 Mg, D.H. Youngblood, Y.-W. Lui, X.F. Chen, and H.L. Clark, Phys Rev C 80, 064318 (2009). Giant resonance in 24 Mg and 28 Si from 240 MeV 6 Li scattering, X. Chen, Y.-W. Lui, H.L. Clark, Y. Tokimoto, and D.H. Youngblood, Phys. Rev. C 80,

  17. ABSTRACTS OF PAPERS PUBLISHED

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    0 - March 31, 2011 Tests of nuclear half-lives as a function of host temperature: refutation of recent claims, J.C. Hardy, J.R. Goodwin, V.V. Golovko and V.E. Iacob, Appl. Rad. and Isot. 68, 1550 (2010). Superallowed nuclear β decay: symmetry breaking, CVC and CKM unitarity, J.C. Hardy and I.S. Towner, Nucl. Phys. A 844, 138c (2010). Precise half-life measurement of the superallowed β + emitter 26 Si, V.E. Iacob, J.C. Hardy, A. Banu, L. Chen, V.V. Golovko, J. Goodwin, V. Horvat, N. Nica, H.I.

  18. Microsoft Word - TAMU abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Extraction Chromatographic Studies of Rf (Z=104) Homologs Using Crown Ether Based Resins Megan E. Bennett University of Nevada - Las Vegas Studying the chemistry of transactinide elements, such as Rf (Z=104), allows not only for the element to be properly placed in the periodic table but also allows for extrapolation of the electronic structure based upon the position of the element in the Periodic Table. The chemical behavior of a transactinide element compared to its homologs allows for

  19. stoltz_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    properties of diamond allow the development of particle detectors with very fast detector response and excellent radiation hardness. Detectors based on chemical vapor...

  20. 1998 APS Abstracts

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    J.L. - A Comparison of Measured Doppler Shifts and Line Widths for Neutral and Ionized Emitters in the Alcator C-Mod Tokamak Institute for Plasma Research, Univ. of Maryland...

  1. 1999 APS Abstracts

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of Neutrals using High Resolution Spectroscopy on Alcator C-Mod Inst. for Plasma Research, U. of Maryland Maqueda, R.J. - Outer divertor heating in Alcator C-Mod LANL...

  2. Abstract Submission Template

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Profiles Show Active Transport Of Momentum Detailed measurements of rotation profile evolution in the Alcator C-Mod tokamak show that momentum can be spontaneously transported by...

  3. Online Abstracts and Reports

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... Turbines with Nonlinear Aeroservoelastic Power Flow Control" R.D. Robinett, III, D.G. ... EWEC 2009 March 16-19, 2009 Marseille, France intlink id"2916" type"page" Back to ...

  4. oganessian_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    a nd s ome o f h is c ollaborators a re h aving a two d ay c ollaboration m eeting i n o ur I nstitute. On T uesday a fternoon t hey w ill d iscuss p rogress o n t he D ubna S...

  5. ABSTRACTS OF PAPERS PUBLISHED

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    G. Savard, J.A. Clark, F. Buchinger, J.E. Crawford, S. Gulick, J.C. Hardy, A.A. Hecht, V.E. Iacob, J.K.P. Lee, A.F. Levand, B.F. Lundgren, N. Scielzo, K.S. Sharma, I....

  6. Geothermal Energy: Current abstracts

    SciTech Connect (OSTI)

    Ringe, A.C.

    1988-02-01

    This bulletin announces the current worldwide information available on the technologies required for economic recovery of geothermal energy and its use as direct heat or for electric power production. (ACR)

  7. Abstract Chris Camphouse

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Chris Camphouse Chris Camphouse received his Ph.D. in applied mathematics from Virginia Polytechnic Institute and State University in 2001. Following a year-long post-doctoral...

  8. ABSTRACTS FOR PAPERS SUBMITTED

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and Subnucleonic Degrees of Freedom, Heavy Ion Collider, Changchun, China, eds. T. T. S. Kuo, H. T. S. Lee, and C. S. Wu (2001) (in press) Heavy ion collisions at the Relativistic...

  9. 1997 APS Abstracts

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and Pedestal Region on Alcator C-Mod Oral Presentations Marmar, E. - Alcator C-Mod Physics Program Rice, J.- Observations of Central Toroidal Rotation in ICRF Heated Alcator...

  10. Abstract.PDF

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    J. Sutherland and P. S. Veers, "Fatigue Case Study and Reliability Analyses for Wind Turbines," 1995 International Solar Energy Conference, ASMEJSMEJSES, 1995. FATIGUE CASE STUDY...

  11. Online Abstracts and Reports

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... Reference Model 3 Report (1926KB PDF) "Extreme Ocean Wave Conditions for Northern ... to MHK Energy Generation from Currents Using the SNL-EFDC Model" J. Roberts, E. ...

  12. ABSTRACTS FOR PAPERS PUBLISHED

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... A671, 567 (2000) We study high mass dilepton production from gluon- induced processes, gq q * , g q q * , and gg q q * , in a thermally equilibrated but chemically ...

  13. Scientific program and abstracts

    SciTech Connect (OSTI)

    Gerich, C.

    1983-01-01

    The Fifth International Conference on High-Power Particle Beams is organized jointly by the Lawrence Livermore National Laboratory and Physics International Company. As in the previous conferences in this series, the program includes the following topics: high-power, electron- and ion-beam acceleration and transport; diode physics; high-power particle beam interaction with plasmas and dense targets; particle beam fusion (inertial confinement); collective ion acceleration; particle beam heating of magnetically confined plasmas; and generation of microwave/free-electron lasers.

  14. Fifteenth annual U.S. Department of Energy low-level radioactive waste management conference: Agenda and abstracts

    SciTech Connect (OSTI)

    1993-12-31

    The goal of the conference was to give the opportunity to identify and discuss low-level radioactive waste management issues, share lessons learned, and hear about some of the latest advances in technology. Abstracts of the presentations are arranged into the following topical sections: (1) Performance Management Track: Performance assessment perspectives; Site characterization; Modeling and performance assessment; and Remediation; (2) Technical Track: Strategic planning; Tools and options; Characterization and validation; Treatment updates; Technology development; and Storage; (3) Institutional Track: Orders and regulatory issues; Waste management options; Legal, economic, and social issues; Public involvement; Siting process; and Low-level radioactive waste policy amendment acts.

  15. Annotated bibliography of radioactive waste management publications at Pacific Northwest Laboratory, January 1978 through July 1982. [831 abstracts

    SciTech Connect (OSTI)

    Not Available

    1982-09-01

    This bibliography lists publications (831 abstracts) from the Pacific Northwest Laboratory's Department of Energy sponsored research and development programs from January 1978 through July of 1982. The abstracts are grouped in subject categories, as shown in the table of contents. Entries in the subject index also facilitate access by subject, e.g., High-Level Radioactive Wastes. Three indexes, each preceded by a brief description, are provided: personal author, subject, and report number. Cited are research reports, journal articles, books, patents, theses, and conference papers. Excluded are technical progress reports. Since 1978 the Nuclear Waste Management Quarterly Progress Report has been published under the series number PNL-3000. Beginning in 1982, this publication has been issued semiannually, under the series number PNL-4250. This bibliography is the successor to two others, BNWL-2201 (covering the years 1965-1976) and PNL-4050 (1975-1978). It is intended to provide a useful reference to literature in waste management written or compiled by PNL staff.

  16. Opportunities for Energy Crop Production Based on Subfield Scale Distribution of Profitability

    SciTech Connect (OSTI)

    Ian Bonner; Kara Cafferty; David Muth Jr.; Mark Tomer

    2014-10-01

    Incorporation of dedicated herbaceous energy crops into row crop landscapes is a promising means to supply an expanding biofuel industry while increasing biomass yields, benefiting soil and water quality, and increasing biodiversity. Despite these positive traits energy crops remain largely unaccepted due to concerns over their practicality and cost of implementation. This paper presents a case study on Hardin County, Iowa to demonstrate how subfield decision making can be used to target candidate areas for conversion to energy crop production. The strategy presented integrates switchgrass (Panicum virgatum L.) into subfield landscape positions where corn (Zea mays L.) grain is modeled to operate at a net economic loss. The results of this analysis show that switchgrass integration has the potential to increase sustainable biomass production from 48 to 99% (depending on the rigor of conservation practices applied to corn stover collection) while also improving field level profitability. Candidate land area is highly sensitive to grain price (0.18 to 0.26 US$ kg-1) and dependent on the acceptable net profit for corn production (ranging from 0 to -1,000 US$ ha-1). This work presents the case that switchgrass can be economically implemented into row crop production landscapes when management decisions are applied at a subfield scale and compete against areas of the field operating at a negative net profit.

  17. Kinetics of the Hydrogen Atom Abstraction Reactions from 1?Butanol by Hydroxyl Radical: Theory Matches Experiment and More

    SciTech Connect (OSTI)

    Seal, Prasenjit; Oyedepo, Gbenga; Truhlar, Donald G.

    2013-01-17

    In the present work, we study the H atom abstraction reactions by hydroxyl radical at all five sites of 1-butanol. Multistructural variational transition state theory (MS-VTST) was employed to estimate the five thermal rate constants. MS-VTST utilizes a multifaceted dividing surface that accounts for the multiple conformational structures of the transition state, and we also include all the structures of the reactant molecule. The vibrational frequencies and minimum energy paths (MEPs) were computed using the M08-HX/MG3S electronic structure method. The required potential energy surfaces were obtained implicitly by direct dynamics employing interpolated variational transition state theory with mapping (IVTST-M) using a variational reaction path algorithm. The M08-HX/MG3S electronic model chemistry was then used to calculate multistructural torsional anharmonicity factors to complete the MS-VTST rate constant calculations. The results indicate that torsional anharmonicity is very important at higher temperatures, and neglecting it would lead to errors of 26 and 32 at 1000 and 1500 K, respectively. Our results for the sums of the site-specific rate constants agree very well with the experimental values of Hanson and co-workers at 896?1269 K and with the experimental results of Campbell et al. at 292 K, but slightly less well with the experiments of Wallington et al., Nelson et al., and Yujing and Mellouki at 253?372 K; nevertheless, the calculated rates are within a factor of 1.61 of all experimental values at all temperatures. This gives us confidence in the site-specific values, which are currently inaccessible to experiment.

  18. Abstract: Development and Deployment of a Short Rotation Woody Crops Harvesting System Based on a Case New Holland Forage Harvester and SRC Woody Crop Header

    Broader source: Energy.gov [DOE]

    This abstract highlights a project that will develop a single pass cut and chip harvesting system for short rotation woody crops that will improve the harvesting and logistic costs of processing woody crops.

  19. Annual Report for 1981 to the DOE Office of the Assistant Secretary for Environmental Protection, Safety, and Emergency Preparedness. Part 2. Ecological Sciences. [Lead abstract

    SciTech Connect (OSTI)

    Vaughan, B.E.

    1982-02-01

    Separate abstracts were prepared for the 38 reports for this Pacific Northwest Laboratory Annual Report for 1981 to the DOE Office of Energy Research. This part dealt with research conducted in the ecological sciences.

  20. Microsoft Word - Piotr Galitzine's abstract

    Broader source: Energy.gov (indexed) [DOE]

    conference presentation July 21 st , 2014 Piotr Galitzine, Chairman of the American Division of TMK - the world's largest steel pipemaker - will talk about trends and revolutions in hydrocarbon production worldwide. He will touch on new developments in horizontal shale drilling for both oil and gas, the emergence of the USA as a LNG exporter as well as what it means to world markets, the oil sands and their strategic importance to America specifically and the world at large. He will also touch

  1. BookOfAbstracts_REUConference

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Distribution of Ions in Laser-Driven Fusion Reactions M. Warrens 1,2 , and A. Bonasera 2 1 University of Dallas, Irving, TX 75062 2 Cyclotron Institute, Texas A&M University,...

  2. IN-PACKAGE CHEMISTRY ABSTRACTION

    SciTech Connect (OSTI)

    E. Thomas

    2005-07-14

    This report was developed in accordance with the requirements in ''Technical Work Plan for Postclosure Waste Form Modeling'' (BSC 2005 [DIRS 173246]). The purpose of the in-package chemistry model is to predict the bulk chemistry inside of a breached waste package and to provide simplified expressions of that chemistry as a function of time after breach to Total Systems Performance Assessment for the License Application (TSPA-LA). The scope of this report is to describe the development and validation of the in-package chemistry model. The in-package model is a combination of two models, a batch reactor model, which uses the EQ3/6 geochemistry-modeling tool, and a surface complexation model, which is applied to the results of the batch reactor model. The batch reactor model considers chemical interactions of water with the waste package materials, and the waste form for commercial spent nuclear fuel (CSNF) waste packages and codisposed (CDSP) waste packages containing high-level waste glass (HLWG) and DOE spent fuel. The surface complexation model includes the impact of fluid-surface interactions (i.e., surface complexation) on the resulting fluid composition. The model examines two types of water influx: (1) the condensation of water vapor diffusing into the waste package, and (2) seepage water entering the waste package as a liquid from the drift. (1) Vapor-Influx Case: The condensation of vapor onto the waste package internals is simulated as pure H{sub 2}O and enters at a rate determined by the water vapor pressure for representative temperature and relative humidity conditions. (2) Liquid-Influx Case: The water entering a waste package from the drift is simulated as typical groundwater and enters at a rate determined by the amount of seepage available to flow through openings in a breached waste package.

  3. In-Package Chemistry Abstraction

    SciTech Connect (OSTI)

    E. Thomas

    2004-11-09

    This report was developed in accordance with the requirements in ''Technical Work Plan for: Regulatory Integration Modeling and Analysis of the Waste Form and Waste Package'' (BSC 2004 [DIRS 171583]). The purpose of the in-package chemistry model is to predict the bulk chemistry inside of a breached waste package and to provide simplified expressions of that chemistry as function of time after breach to Total Systems Performance Assessment for the License Application (TSPA-LA). The scope of this report is to describe the development and validation of the in-package chemistry model. The in-package model is a combination of two models, a batch reactor model that uses the EQ3/6 geochemistry-modeling tool, and a surface complexation model that is applied to the results of the batch reactor model. The batch reactor model considers chemical interactions of water with the waste package materials and the waste form for commercial spent nuclear fuel (CSNF) waste packages and codisposed waste packages that contain both high-level waste glass (HLWG) and DOE spent fuel. The surface complexation model includes the impact of fluid-surface interactions (i.e., surface complexation) on the resulting fluid composition. The model examines two types of water influx: (1) the condensation of water vapor that diffuses into the waste package, and (2) seepage water that enters the waste package from the drift as a liquid. (1) Vapor Influx Case: The condensation of vapor onto the waste package internals is simulated as pure H2O and enters at a rate determined by the water vapor pressure for representative temperature and relative humidity conditions. (2) Water Influx Case: The water entering a waste package from the drift is simulated as typical groundwater and enters at a rate determined by the amount of seepage available to flow through openings in a breached waste package. TSPA-LA uses the vapor influx case for the nominal scenario for simulations where the waste package has been breached but the drip shield remains intact, so all of the seepage flow is diverted from the waste package. The chemistry from the vapor influx case is used to determine the stability of colloids and the solubility of radionuclides available for transport by diffusion, and to determine the degradation rates for the waste forms. TSPA-LA uses the water influx case for the seismic scenario, where the waste package has been breached and the drip shield has been damaged such that seepage flow is actually directed into the waste package. The chemistry from the water influx case that is a function of the flow rate is used to determine the stability of colloids and the solubility of radionuclides available for transport by diffusion and advection, and to determine the degradation rates for the CSNF and HLW glass. TSPA-LA does not use this model for the igneous scenario. Outputs from the in-package chemistry model implemented inside TSPA-LA include pH, ionic strength, and total carbonate concentration. These inputs to TSPA-LA will be linked to the following principle factors: dissolution rates of the CSNF and HLWG, dissolved concentrations of radionuclides, and colloid generation.

  4. gridnev2_abstract.pdf

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

  5. BookOfAbstracts_REUConference

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Electromagnetic Field Generation Using a Multiphase Transport Model in Heavy-Ion Collisions T. Chen 1,2 , and Che-Ming Ko 2 1 Carleton College, Northfield, MN 55057 2 Cyclotron...

  6. Microsoft Word - atcher_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    What? Cyclotron Colloquium, Wednesday, March 23, 2011, at 4:00 pm Refreshment will be served at 3:45 pm Title: The US Isotope Production Program Speaker: Dr. Robert Atcher US Department of Energy

  7. Microsoft Word - dorso_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Nuclei to Neutron Stars Prof. C.O.Dorso GEBI - University of Buenos Aires In this presentation I will briefly review the properties of, and some recent results obtained with, the Classical Molecular Dynamics model (Illinois Potential) Then I'll explore the properties of and infinite neutral system in which the nuclear part is described with the above mentioned interaction potential. In this case Coulomb interaction is described by a screened short range term with a Thomas Fermi screening length

  8. Microsoft Word - finocchiaro_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    June 3rd, at 3:00 pm "Low-energy low-intensity ion beam diagnostics with detectors" Dr. Paolo Finocchiaro INFN - Laboratori Nazionali del Sud, Catania, ITALY In the framework of the interest in radioactive ion beam facilities, as well as in low energy ion traps, special diagnostic tools are needed in order to cope with low and very low intensity beams, sometimes also at very low energy. Particle detection techniques seem attractive under several aspects. In this talk I will describe

  9. Microsoft Word - janssens_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    4th, at 3:45 pm "The hunt for new shell structure in neutron-rich nuclei" Dr. Robert V. F. Janssens Argonne National Laboratory, Argonne, IL Refreshments will be served at 3:30 pm

  10. Microsoft Word - page_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    7, at 3:00 pm "Probing Nuclear Structure beyond the Proton Drip Line" Prof. Robert Page Dept. of Physics, University of Liverpool, UK Understanding nuclei at the limits of existence is a major challenge in nuclear physics and impressive advances in addressing this issue are being achieved. At the limits of proton-rich nuclei, over 30 proton emitters have been discovered to date. This success has been made possible by exploiting recoil separators capable of isolating ephemeral species

  11. Microsoft Word - petrick_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Precise Electrostatic Spectrometers for Time-of-Flight Mass Measurements Martin Petrick Giessen University, Germany Different type of Time-of-Flight Spectrometers (TOF) for mass measurement will be presented. Developed and built at University in Giessen in cooperation with GSI, these devices are used for analyzing different kind of ion-mass-spectra at low energy beam facilities like SHIP at GSI or MLL at Munich. A new type of Mutiple-Reflection-TOF (Multi-TOF) with a mass-resolution over 300,000

  12. Microsoft Word - ray_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of electron capture nuclear decay rate in different media and under compression Amlan Ray Variable Energy Cyclotron Center 1/AF, Bidhan Nagar Kolkata - 700064 India The study of electron capture nuclear decay rate in different media and under compression is interesting and has implications in many areas. It was known for a long time that the electron capture decay rate of 7 Be was slightly different for different 7 Be compounds. Recently relatively larger effects (1%) were seen by comparing

  13. Microsoft Word - ressler_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    May 11, at 3:45 pm Surrogate reactions for nuclear energy applications Dr. J. J. Ressler Lawrence Livermore National Labs, Livermore, CA New reactor designs and materials, reprocessing efforts, and transmutation of nuclear waste play significant roles in the future of nuclear energy science. New or improved neutron measurements on a number of different isotopes are needed to determine feasibility, effectiveness, and safety issues for the novel engineering efforts. Data collection efforts are

  14. Microsoft Word - young_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    May 13th, at 1:30 pm "Measurements of Beta-Decay in the Neutron and 19Ne: Some Recent Progress" Professor A. R. Young Dept. of Physics, North Carlina State Univ., Raleigh, NC We present recent measurements of the beta-decay of the neutron and 19Ne. Both systems have spin 1/2, and are characterized by isobaric analog decays involving, in leading order, two form factors. Precise characterization of these decays requires two independent measurements, one of which is typically the lifetime

  15. How to Prepare Your Abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    a paragraph describing research effort and should be no longer than half a page or 300 words. Be sure to check for correct spelling as your submission will be published.)...

  16. Biological & Environmental Research Abstracts Database

    Office of Scientific and Technical Information (OSTI)

    Env Geophys Environmental GeophysicsHydrogeology Env Micro Environmental Microbiology Env Radon Environmental Radon ETP-IA ETP-Integrated Assessment (Environmental ...

  17. BookOfAbstracts_REUConference

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    matter (NM) - many of which have large uncertainties - and thereby improve the nuclear energy-density functional. In this work, self- consistent Hartree-Fock random-phase...

  18. BookOfAbstracts_REUConference

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    constituents, especially gluons, remains enigmatic. By studying asymmetric pairs of jets produced in polarized proton-proton collisions at forward rapidity, more information...

  19. BookOfAbstracts_REUConference

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    at a center of mass energy S NN 200 GeV using the PYTHIA 8.185 event generator. Jets are studied via two-particle azimuthal correlations, with the recoil jet analyzed via...

  20. Microsoft Word - gonin_abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    by their newly built neutrino beam at the J-PARC accelerator laboratory in Tokai, Japan. This detection therefore marks the beginning of the operational phase of the new...

  1. Technical Work Plan For: Calculation of Waste Packave and Drip Shield Response to Vibratory Ground Motion and Revision of the Seismic Consequence Abstraction

    SciTech Connect (OSTI)

    M. Gross

    2006-12-08

    The overall objective of the work scope covered by this technical work plan (TWP) is to develop new damage abstractions for the seismic scenario class in total system performance assessment (TSPA). The new abstractions will be based on a new set of waste package and drip shield damage calculations in response to vibratory ground motion and fault displacement. The new damage calculations, which are collectively referred to as damage models in this TWP, are required to represent recent changes in waste form packaging and in the regulatory time frame. The new damage models also respond to comments from the Independent Validation Review Team (IVRT) postvalidation review of the draft TSPA model regarding performance of the drip shield and to an Additional Information Need (AIN) from the U.S. Nuclear Regulatory Commission (NRC).

  2. Revenue Requirements Modeling System (RRMS) documentation. Volume I. Methodology description and user's guide. Appendix A: model abstract; Appendix B: technical appendix; Appendix C: sample input and output. [Compustat

    SciTech Connect (OSTI)

    Not Available

    1986-03-01

    The Revenue Requirements Modeling System (RRMS) is a utility specific financial modeling system used by the Energy Information Administration (EIA) to evaluate the impact on electric utilities of changes in the regulatory, economic, and tax environments. Included in the RRMS is a power plant life-cycle revenue requirements model designed to assess the comparative economic advantage of alternative generating plant. This report is Volume I of a 2-volume set and provides a methodology description and user's guide, a model abstract and technical appendix, and sample input and output for the models. Volume II provides an operator's manual and a program maintenance guide.

  3. Ethanol and High-Value Terpene Co-Production from Lignocellulosic Biomass of Cymbopogon flexuosus and Cymbopogon martinii

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Joyce, Blake L.; Zheljazkov, Valtcho D.; Sykes, Robert; Cantrell, Charles L.; Hamilton, Choo; Mann, David G. J.; Rodriguez, Miguel; Mielenz, Jonathan R.; Astatkie, Tess; C. Neal Stewart Jr.

    2015-10-05

    Cymbopogon flexuosus, lemongrass, and C. martinii, palmarosa, are perennial grasses grown to produce essential oils for the fragrance industry. The objectives of this study were (1) to evaluate biomass and oil yields as a function of nitrogen and sulfur fertilization, and (2) to characterize their utility for lignocellulosic ethanol compared to Panicum virgatum (switchgrass). Mean biomass yields were 12.83 Mg lemongrass ha-1 and 15.11 Mg palmarosa ha-1 during the second harvest year resulting in theoretical biofuel yields of 2541 and 2569 L ethanol ha-1 respectively compared to reported 1749–3691 L ethanol ha-1 for switchgrass. Pretreated lemongrass yielded 198 mL ethanolmore » (g biomass) -1 and pretreated palmarosa yielded 170 mL ethanol (g biomass) -1. Additionally, lemongrass yielded 85.7 kg essential oil ha-1 and palmarosa yielded 67.0 kg ha-1 with an estimated value of USD $857 and $1005 ha-1. These data suggest that dual-use crops such as lemongrass and palmarosa may increase the economic viability of lignocellulosic biofuels.« less

  4. Ethanol and High-Value Terpene Co-Production from Lignocellulosic Biomass of Cymbopogon flexuosus and Cymbopogon martinii

    SciTech Connect (OSTI)

    Joyce, Blake L.; Zheljazkov, Valtcho D.; Sykes, Robert; Cantrell, Charles L.; Hamilton, Choo; Mann, David G. J.; Rodriguez, Miguel; Mielenz, Jonathan R.; Astatkie, Tess; C. Neal Stewart Jr.

    2015-10-05

    Cymbopogon flexuosus, lemongrass, and C. martinii, palmarosa, are perennial grasses grown to produce essential oils for the fragrance industry. The objectives of this study were (1) to evaluate biomass and oil yields as a function of nitrogen and sulfur fertilization, and (2) to characterize their utility for lignocellulosic ethanol compared to Panicum virgatum (switchgrass). Mean biomass yields were 12.83 Mg lemongrass ha-1 and 15.11 Mg palmarosa ha-1 during the second harvest year resulting in theoretical biofuel yields of 2541 and 2569 L ethanol ha-1 respectively compared to reported 17493691 L ethanol ha-1 for switchgrass. Pretreated lemongrass yielded 198 mL ethanol (g biomass) -1 and pretreated palmarosa yielded 170 mL ethanol (g biomass) -1. Additionally, lemongrass yielded 85.7 kg essential oil ha-1 and palmarosa yielded 67.0 kg ha-1 with an estimated value of USD $857 and $1005 ha-1. These data suggest that dual-use crops such as lemongrass and palmarosa may increase the economic viability of lignocellulosic biofuels.

  5. International Workshop on Computational Condensed Matter Physics (5th) held in Trieste, Italy on 16-18 January 1991. Programme and abstracts

    SciTech Connect (OSTI)

    Not Available

    1991-01-18

    Following the tradition of the previous meetings, the Workshop was devoted to recent advances in computational condensed matter physics, based on realistic calculations of the electronic structure of polyatomic systems. The list of topics treated includes: High temperature superconductivity, new materials, alloy phase diagrams, recent developments in density functional theory, new developments in pseudopotential theory, approximate methods. Car-Parrinello approach to molecular dynamics, quantum Monte Carlo treatment of correlation effects, time-dependent correlations and excitation properties, quantum dynamics. Emphasis is put on both theoretical techniques and applications. This report consists primarily of abstracts of reports presented at the workshop. Session titles were: Quantum Monte Carlo; Maximum entropy methods; New schemes for electron-ion interaction; High Tc and highly correlated electron systems; Spectroscopy of highly correlated electron systems. Quasiparticle energies; New applications and developments of density functional theory; semiconductor and metal alloys; Surfaces and interfaces; Defects and diffusion; Liquid and amorphous systems.

  6. Nuclear facility decommissioning and site remedial actions: A selected bibliography, Volume 18. Part 1A: Citations with abstracts, sections 1 through 9

    SciTech Connect (OSTI)

    1997-09-01

    This bibliography contains 3,638 citations with abstracts of documents relevant to environmental restoration, nuclear facility decontamination and decommissioning (D and D), uranium mill tailings management, and site remedial actions. The bibliography contains scientific, technical, financial, and regulatory information that pertains to DOE environmental restoration programs. The citations are separated by topic into 16 sections, including (1) DOE Environmental Restoration program; (2) DOE D and D Program; (3) Nuclear Facilities Decommissioning; (4) DOE Formerly Utilized Sites Remedial Action Program; (5) NORM-Contaminated Site Restoration; (6) DOE Uranium Mill Tailings Remedial Action Project; (7) Uranium Mill Tailings Management; (8) DOE Site-Wide Remedial Actions; (9) DOE Onsite Remedial Action Projects; (10) Contaminated Site Remedial Actions; (11) DOE Underground Storage Tank Remediation; (12) DOE Technology Development, Demonstration, and Evaluation; (13) Soil Remediation; (14) Groundwater Remediation; (15) Environmental Measurements, Analysis, and Decision-Making; and (16) Environmental Management Issues.

  7. Nuclear facility decommissioning and site remedial actions: A selected bibliography, Volume 18. Part 1B: Citations with abstracts, sections 10 through 16

    SciTech Connect (OSTI)

    1997-09-01

    This bibliography contains 3,638 citations with abstracts of documents relevant to environmental restoration, nuclear facility decontamination and decommissioning (D and D), uranium mill tailings management, and site remedial actions. The bibliography contains scientific, technical, financial, and regulatory information that pertains to DOE environmental restoration programs. The citations are separated by topic into 16 sections, including (1) DOE Environmental Restoration Program; (2) DOE D and D Program; (3) Nuclear Facilities Decommissioning; (4) DOE Formerly Utilized sites Remedial Action Program; (5) NORM-Contaminated Site Restoration; (6) DOE Uranium Mill Tailings Remedial Action Project; (7) Uranium Mill Tailings Management; (8) DOE Site-Wide Remedial Actions; (9) DOE Onsite Remedial Action Projects; (10) Contaminated Site Remedial Actions; (11) DOE Underground Storage Tank Remediation; (12) DOE Technology Development, Demonstration, and Evaluation; (13) Soil Remediation; (14) Groundwater Remediation; (15) Environmental Measurements, Analysis, and Decision-Making; and (16) Environmental Management Issues.

  8. Hydrologic calibration of paired watersheds using a MOSUM approach

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Ssegane, H.; Amatya, D. M.; Muwamba, A.; Chescheir, G. M.; Appelboom, T.; Tollner, E. W.; Nettles, J. E.; Youssef, M. A.; Birgand, F.; Skaggs, R. W.

    2015-01-09

    Paired watershed studies have historically been used to quantify hydrologic effects of land use and management practices by concurrently monitoring two neighboring watersheds (a control and a treatment) during the calibration (pre-treatment) and post-treatment periods. This study characterizes seasonal water table and flow response to rainfall during the calibration period and tests a change detection technique of moving sums of recursive residuals (MOSUM) to select calibration periods for each control-treatment watershed pair when the regression coefficients for daily water table elevation (WTE) were most stable to reduce regression model uncertainty. The control and treatment watersheds included 1–3 year intensively managedmore » loblolly pine (Pinus taeda L.) with natural understory, same age loblolly pine intercropped with switchgrass (Panicum virgatum), 14–15 year thinned loblolly pine with natural understory (control), and switchgrass only. Although monitoring during the calibration period spanned 2009 to 2012, silvicultural operational practices that occurred during this period such as harvesting of existing stand and site preparation for pine and switchgrass establishment may have acted as external factors, potentially shifting hydrologic calibration relationships between control and treatment watersheds. Results indicated that MOSUM was able to detect significant changes in regression parameters for WTE due to silvicultural operations. This approach also minimized uncertainty of calibration relationships which could otherwise mask marginal treatment effects. All calibration relationships developed using this MOSUM method were quantifiable, strong, and consistent with Nash–Sutcliffe Efficiency (NSE) greater than 0.97 for WTE and NSE greater than 0.92 for daily flow, indicating its applicability for choosing calibration periods of paired watershed studies.« less

  9. Hydrologic calibration of paired watersheds using a MOSUM approach

    SciTech Connect (OSTI)

    Ssegane, H.; Amatya, D. M.; Muwamba, A.; Chescheir, G. M.; Appelboom, T.; Tollner, E. W.; Nettles, J. E.; Youssef, M. A.; Birgand, F.; Skaggs, R. W.

    2015-01-09

    Paired watershed studies have historically been used to quantify hydrologic effects of land use and management practices by concurrently monitoring two neighboring watersheds (a control and a treatment) during the calibration (pre-treatment) and post-treatment periods. This study characterizes seasonal water table and flow response to rainfall during the calibration period and tests a change detection technique of moving sums of recursive residuals (MOSUM) to select calibration periods for each control-treatment watershed pair when the regression coefficients for daily water table elevation (WTE) were most stable to reduce regression model uncertainty. The control and treatment watersheds included 13 year intensively managed loblolly pine (Pinus taeda L.) with natural understory, same age loblolly pine intercropped with switchgrass (Panicum virgatum), 1415 year thinned loblolly pine with natural understory (control), and switchgrass only. Although monitoring during the calibration period spanned 2009 to 2012, silvicultural operational practices that occurred during this period such as harvesting of existing stand and site preparation for pine and switchgrass establishment may have acted as external factors, potentially shifting hydrologic calibration relationships between control and treatment watersheds. Results indicated that MOSUM was able to detect significant changes in regression parameters for WTE due to silvicultural operations. This approach also minimized uncertainty of calibration relationships which could otherwise mask marginal treatment effects. All calibration relationships developed using this MOSUM method were quantifiable, strong, and consistent with NashSutcliffe Efficiency (NSE) greater than 0.97 for WTE and NSE greater than 0.92 for daily flow, indicating its applicability for choosing calibration periods of paired watershed studies.

  10. Extension of structure-reactivity correlations for the hydrogen abstraction reaction by bromine atom and comparison to chlorine atom and hydroxyl radical

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Poutsma, Marvin L.

    2015-12-14

    Recently we presented structure-reactivity correlations for the gas-phase ambient-temperature rate constants for hydrogen abstraction from sp3-hybridized carbon by chlorine atom and hydroxyl radical (Cl•/HO• + HCR3 → HCl/HOH + •CR3); the reaction enthalpy effect was represented by the independent variable ΔrH and the polar effect by the independent variables F and R, the Hammett constants for field/inductive and resonance effects. Both these reactions are predominantly exothermic and have early transition states. Here we present a parallel treatment for Br• whose reaction is significantly endothermic with a correspondingly late transition state. In spite of lower expectations because the available data basemore » is less extensive and much more scattered and because long temperature extrapolations are often required, the resulting least-squares fit (log k298,Br = –0.147 ΔrH –4.32 ΣF –4.28 ΣR –12.38 with r2 = 0.92) was modestly successful and useful for initial predictions. The coefficient of ΔrH was ~4-fold greater, indicative of the change from an early to a late transition state; meanwhile the sizable coefficients of ΣF and ΣR indicate the persistence of the polar effect. Although the mean unsigned deviation of 0.79 log k298 units is rather large, it must be considered in the context of a total span of over 15 log units in the data set. Lastly, the major outliers are briefly discussed.« less

  11. 3D Electron Tomography of Switchgrass Cell Wall Deconstruction by Clostridium cellulolyticum (Poster)

    SciTech Connect (OSTI)

    Haas, T.; Donohoe, B.; Wei, H.; Yang, Y.; Keller, M.; Himmel, M.; Ding, S.-Y.

    2009-06-01

    This poster describes research about biomass-digesting microorganisms that produce structured biomass-degrading enzyme complexes.

  12. Propane ammoxidation over the Mo-V-Te-Nb-O M1 phase: Reactivity of surface cations in hydrogen abstraction steps

    SciTech Connect (OSTI)

    Muthukumar, Kaliappan; Yu, Junjun; Xu, Ye; Guliants, Vadim V.

    2011-01-01

    Density functional theory calculations (GGA-PBE) have been performed to investigate the adsorption of C3 (propane, isopropyl, propene, and allyl) and H species on the proposed active center present in the surface ab planes of the bulk Mo-V-Te-Nb-O M1 phase in order to better understand the roles of the different surface cations in propane ammoxidation. Modified cluster models were employed to isolate the closely spaced V=O and Te=O from each other and to vary the oxidation state of the V cation. While propane and propene adsorb with nearly zero adsorption energy, the isopropyl and allyl radicals bind strongly to V=O and Te=O with adsorption energies, {Delta}E, being {le} -1.75 eV, but appreciably more weakly on other sites, such as Mo=O, bridging oxygen (Mo-O-V and Mo-O-Mo), and empty metal apical sites ({Delta}E > -1 eV). Atomic H binds more strongly to Te = O ({Delta}E {le} -3 eV) than to all the other sites, including V = O ({Delta}E = -2.59 eV). The reduction of surface oxo groups by dissociated H and their removal as water are thermodynamically favorable except when both H atoms are bonded to the same Te=O. Consistent with the strong binding of H, Te=O is markedly more active at abstracting the methylene H from propane (E{sub a} {le} 1.01 eV) than V = O (E{sub a} = 1.70 eV on V{sup 5+} = O and 2.13 eV on V{sup 4+} = O). The higher-than-observed activity and the loose binding of Te = O moieties to the mixed metal oxide lattice of M1 raise the question of whether active Te = O groups are in fact present in the surface ab planes of the M1 phase under propane ammoxidation conditions.

  13. Saint Joseph's University Institute for Environmental Stewardship

    SciTech Connect (OSTI)

    McCann, Michael P; Springer, Clint

    2013-10-15

    Task A: Examination of the physiological, morphological, and reproductive responses of Panicum virgatum (switchgrass) cultivars identified as potential biofuel producing cultivars as well as naturally-occurring varieties of switchgrass to projected changes in climate for the central portion of the United States. This project was a multi-year project set in a field site located at the Konza Prairie Biological Station near Manhattan, KS USA. At the field site we planted switchgrass collected from regions in Kansas, Oklahoma, and Texas. After a year of establishment we implemented a set of two-year water treatments that examined the responses in physiology, growth and development of switchgrass to predicted changes in precipitation amount for the central United States. After this experiment was completed we performed a second set of experiments that examined the responses of switchgrass physiology, growth, and development to changes in precipitation frequency. We also included in this analysis how genome size of individuals influenced their responses to precipitation frequency changes. Generally, we found switchgrass to be unresponsive to realistic predictions of precipitation changes for the Central Plains of the United States. These studies have provided significant insight into how this important grassland species will respond to future climate change from both an ecological and applied biological perspective. Finally, we provided insight into the mechanism through which this species changes in the face of altered water availability by not supporting the hypothesis that the control of switchgrass responses to changes in precipitation is altered by genome size. Task B: Installation of an extensive green roof system on the Science Center at Saint Joseph's University for research, research-training and educational outreach activities. An experimental green roof system was designed and installed by an outside contractor (Roofmeadows) on the roof of the Science Center at Saint Joseph's University. The roof system includes four test plots, each with a different drainage system, instrumentation to monitor storm water retention, roof deck temperature, heat flux into and out of the building, rain fall, wind speed and direction, relative humidity and heat emission from the roof system. The vegetative roof was planted with 26 species of plants, distributed throughout the roof area, to assess species/variety growth and coverage characteristics, both in terms of the different drain layer systems, and in terms of the different exposures along the north to south axis of the building. Analysis of the drain layer performance, in terms of storm water retention, shows that the aggregate (stone) drainage layer system performed the best, with the moisture management mat system second, and the geotextile drain layer and reservoir sheet layer systems coming in last. Plant growth performance analysis is ongoing, but significant differences have been observed in the third growing season ('13) along the north to south axis, with most species doing better towards the northern end of the roof (in terms of percent ground coverage and plant spread and reproduction). Interestingly, plant growth in all four of the test plots was reduced relative to the lower areas of the roof (the lower area was ca. 2 inches lower than the test plots, due to the space needed for sensors under the plots. The lower roof area uses an aggregate drain layer comparable to that in the third test plot), even when accounting for the north to south differences. The reasons for these differences are not clear and studies are underway to examine the impact of wind scour, drainage rates, temperature, and other factors. Task C: Education and community outreach efforts by the IES involving conferences at SJU, presentations by faculty and students off campus, and educational signage. The Institute for Environmental Stewardship hosted three storm water management workshops on the SJU campus in Philadelphia, in collaboration with the Lower Merion Conservancy, a not-for-profit organizati

  14. Microsoft Word - VECCHIO, Ken - ABSTRACT.docx

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    upon the positive engineering properties exhibited by hierarchical multiphase complex natural composites, such as mollusk shells, to design and synthesize multifunctional...

  15. Fuel Cell Seminar, 1992: Program and abstracts

    SciTech Connect (OSTI)

    Not Available

    1992-12-31

    This year`s theme, ``Fuel Cells: Realizing the Potential,`` focuses on progress being made toward commercial manufacture and use of fuel cell products. Fuel cell power plants are competing for market share in some applications and demonstrations of market entry power plants are proceeding for additional applications. Development activity on fuel cells for transportation is also increasing; fuel cell products have potential in energy and transportation industries, with very favorable environmental impacts. This Seminar has the purpose of fostering communication by providing a forum for the international community interested in development, application, and business opportunities related fuel cells. Over 190 technical papers are included, the majority being processed for the data base.

  16. DOE Laboratory Catalysis Research Symposium - Abstracts

    SciTech Connect (OSTI)

    Dunham, T.

    1999-02-01

    The conference consisted of two sessions with the following subtopics: (1) Heterogeneous Session: Novel Catalytic Materials; Photocatalysis; Novel Processing Conditions; Metals and Sulfides; Nuclear Magnetic Resonance; Metal Oxides and Partial Oxidation; Electrocatalysis; and Automotive Catalysis. (2) Homogeneous Catalysis: H-Transfer and Alkane Functionalization; Biocatalysis; Oxidation and Photocatalysis; and Novel Medical, Methods, and Catalyzed Reactions.

  17. Microsoft Word - THILLY, Ludovic - Abstract.doc

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    for high pulsed magnets: effects of the nanostructure on the resistance to high stress, high temperature and irradiation Copper-based high strength and high electrical...

  18. Microsoft Word - 01 Hirshfeld Abstract.doc

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    the physical nature of stars, nebulae, and the universe. Through their innovative work, these long-ago "Starlight Detectives" helped transform astronomy into the powerful...

  19. ABSTRACT Bayarbadrakh, Baramsai. Neutron Capture Reactions

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Bayarbadrakh, Baramsai. Neutron Capture Reactions on Gadolinium Isotopes. (Under the direction of Dr. G. E. Mitchell and U. Agvaanluvsan). The neutron capture reaction on 155 Gd, 156 Gd and 158 Gd isotopes has been studied with the DANCE calorimeter at Los Alamos Neutron Science Center. The highly segmented calorimeter provided detailed multiplicity distributions of the capture γ-rays. With this information the spins of the neutron capture resonances have been determined. The new technique

  20. IACT Conference Proceedings, Abstracts, Presentations, and Poster...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Interfacial Catalysis for Hydrogen Production," Jeffrey Greeley, Bin Liu, Rees Rankin, Zhi-Jian Zhao, and Zhenhua Zeng, 2014 ACS Annual Meeting, March 16, 2014, Dallas, TX. "In...

  1. 1990 fuel cell seminar: Program and abstracts

    SciTech Connect (OSTI)

    Not Available

    1990-12-31

    This volume contains author prepared short resumes of the presentations at the 1990 Fuel Cell Seminar held November 25-28, 1990 in Phoenix, Arizona. Contained herein are 134 short descriptions organized into topic areas entitled An Environmental Overview, Transportation Applications, Technology Advancements for Molten Carbonate Fuel Cells, Technology Advancements for Solid Fuel Cells, Component Technologies and Systems Analysis, Stationary Power Applications, Marine and Space Applications, Technology Advancements for Acid Type Fuel Cells, and Technology Advancement for Solid Oxide Fuel Cells.

  2. Fault Tolerant Programming Abstractions and Failure Recovery...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Problem Description * Why adding FT to MPI is difficult? * Challenges & areas of concern Lessons Learned * Where do we go from here? * Summary Approaches * Current solutions to...

  3. Property:Abstract | Open Energy Information

    Open Energy Info (EERE)

    from a basically ubiquitous resource, independent of site subsurface conditions ("EGS technology"); 2) acquiring experience about possible changes of an EGS heat exchanger with...

  4. 1986 fuel cell seminar: Program and abstracts

    SciTech Connect (OSTI)

    1986-10-01

    Ninety nine brief papers are arranged under the following session headings: gas industry's 40 kw program, solid oxide fuel cell technology, phosphoric acid fuel cell technology, molten carbonate fuel cell technology, phosphoric acid fuel cell systems, power plants technology, fuel cell power plant designs, unconventional fuels, fuel cell application and economic assessments, and plans for commerical development. The papers are processed separately for the data base. (DLC)

  5. Biological & Environmental Research Abstracts Database

    Office of Scientific and Technical Information (OSTI)

    Help Table of Contents Basic Search Advanced Search - Term searching - PI Lookup - Institution Lookup - Research Area Code Lookup - Project Term Searching Search Tips - General - Case sensitivity - Drop-down menus - Wildcard operators - Phrase/adjacent term searching - Boolean Search Results - Results - Sorting - Using the check box - Project Records - Download Search Results - Printing Technical Requirements Basic Search Enter your search term (s) in the search box and your search will be

  6. Biological & Environmental Research Abstracts Database

    Office of Scientific and Technical Information (OSTI)

    Search full record for (supports AND and OR operators and phrase in "double quotes") Search

  7. Biological & Environmental Research Abstracts Database

    Office of Scientific and Technical Information (OSTI)

    Disclaimers

  8. Microsoft Word - abstract_oakridge.docx

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    matter and in particular the influence of symmetry and pairing energy. Methods to derive the free energy, density and temperature from heavy ion collisions will be analyzed. ...

  9. CSNF WASTE FORM DEGRADATION: SUMMARY ABSTRACTION

    SciTech Connect (OSTI)

    J.C. CUNNANE

    2004-08-31

    The purpose of this model report is to describe the development and validation of models that can be used to calculate the release of radionuclides from commercial spent nuclear fuel (CSNF) following a hypothetical breach of the waste package and fuel cladding in the repository. The purpose also includes describing the uncertainties associated with modeling the radionuclide release for the range of CSNF types, exposure conditions, and durations for which the radionuclide release models are to be applied. This document was developed in accordance with Technical Work Plan for: Regulatory Integration Modeling and Analysis of the Waste Form and Waste Package (BSC 2004 [DIRS 169944]). This document considers radionuclides to be released from CSNF when they are available for mobilization by gas-phase mass transport, or by dissolution or colloid formation in water that may contact the fuel. Because other reports address limitations on the dissolved and colloidal radionuclide concentrations (BSC 2004 [DIRS 169944], Table 2-1), this report does not address processes that control the extent to which the radionuclides released from CSNF are mobilized and transported away from the fuel either in the gas phase or in the aqueous phase as dissolved and colloidal species. The scope is limited to consideration of degradation of the CSNF rods following an initial breach of the cladding. It considers features of CSNF that limit the availability of individual radionuclides for release into the gaseous or aqueous phases that may contact the fuel and the processes and events expected to degrade these CSNF features. In short, the purpose is to describe the characteristics of breached fuel rods and the degradation processes expected to influence radionuclide release.

  10. Microsoft Word - THILLY, Ludovic - Abstract.doc

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ludovic Thilly Institut Pprime, CNRS-University of Poitiers-ENSMA SP2MI, 86962 Futuroscope, France Ludovic.thilly@univ-poitiers.fr Cu/Nb nanocomposite wires processed by severe plastic deformation for high pulsed magnets: effects of the nanostructure on the resistance to high stress, high temperature and irradiation Copper-based high strength and high electrical conductivity nanocomposite wires reinforced by Nb nanotubes are prepared by severe plastic deformation, applied with an Accumulative

  11. ABSTRACT TAMANG, APIL. A Multilevel Method

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    transport equation coupled with the burnup and reactor kinetics equations," in International Sympo- sium on Numerical Transport Theory, (Moscow, Russia), pp. 33-36,...

  12. Microsoft Word - Lazerson abstract-bio.doc

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and possibly exceeding, that of modern tokamaks. This talk will highlight the physics and history of stellarator experimentation and design including examples from past, current,...

  13. ARM - Publications: Science Team Meeting Documents: Abstracts...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... Wong, E. Study on the Use of Atmospheric Radiation Measurements for the Validation of National Polar-orbiting Operational Environmental Satellite SystemVisibleInfrared Imager...

  14. ARM - Publications: Science Team Meeting Documents: Abstracts...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Framework: a Comparison To Atmospheric Radiation Measurement Program Observations ... Asymmetry Parameter The Atmospheric Radiation Measurement Aerosol Observing Systems: ...

  15. ARM - Publications: Science Team Meeting Documents: Abstracts...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Proceedings of the Fifteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting ... Anderson, J.G. Confronting Models with Atmospheric Radiation Measurement Data: A ...

  16. Domain-specific abstractions and compiler transformations

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of Computer Science and Engineering, Ohio State University Recent trends in architecture are making multicore parallelism as well as heterogeneity ubiquitous. This creates...

  17. Saint Joseph's University Institute for Environmental Stewardship

    SciTech Connect (OSTI)

    McCann, Michael; Springer, Clint

    2014-06-18

    Task A: Examination of the physiological, morphological, and reproductive responses of Panicum virgatum (switchgrass) cultivars identified as potential biofuel producing cultivars as well as naturally-occurring varieties of switchgrass to projected changes in climate for the central portion of the United States. This project was a multi-year project set in a field site located at the Konza Prairie Biological Station near Manhattan, KS USA. The major objective of the study was to understand the physiological and growth responses of the important biofuel grass species, Panicum virgatum (switch grass) to simulated changes in precipitation expected for the Central Plains region of the United States. Population level adaptation to broad-scale regional climates or within-population variation in genome size of this genetically and phenotypically diverse C4 grass species may influence the responses to future precipitation variability associated with climate change. Therefore, we investigated switchgrass responses to water variability between natural populations collected across latitudinal gradient and populations. P. virgatum plants from natural populations originating from Kansas, Oklahoma, and Texas received frequent, small precipitation events (ambient) or infrequent, large precipitation events (altered) to simulate contrasting rainfall variability expected from this region. We measured leaf-level physiology, aboveground biomass varied significantly by population origin but did not differ by genome size. Our results suggest that trait variation in P. virgatum is primarily attributed to population-level adaptation across latitudinal gradient, not genome size, and that neither population-level adaptation nor genome size may be important predictors of P. virgatum responses to future climatic conditions. Based solely on the data presented here, the most important consideration when deciding what varieties of switchgrass to cultivate for biofuel feedstocks under future climate scenarios is local adaptation and not necessarily genome size as has been hypothesized in the literature. Task B: Installation of an extensive green roof system on the Science Center at Saint Joseph's University for research, research-training and educational outreach activities. An experimental green roof system was designed and installed by an outside contractor (Roofmeadows) on the roof of the Science Center at Saint Joseph's University. The roof system includes four test plots, each with a different drainage system, instrumentation to monitor storm water retention, roof deck temperature, heat flux into and out of the building, rain fall, wind speed and direction, relative humidity and heat emission from the roof system. The vegetative roof was planted with 26 species of plants, distributed throughout the roof area, to assess species/variety growth and coverage characteristics, both in terms of the different drain layer systems, and in terms of the different exposures along the north to south axis of the building. Analysis of the drain layer performance, in terms of storm water retention, shows that the aggregate (stone) drainage layer system performed the best, with the moisture management mat system second, and the geotextile drain layer and reservoir sheet layer systems coming in last. This information is of value in the planning and design of vegetative roof systems since the different types of drainage layer systems have different installation costs and different weights. The different drainage layer systems also seem to be having an impact on plant growth and spread with the test plot with the reservoir sheet layer actually having the poorest plant coverage and plant spread of all areas of the roof studied. Plant growth performance analysis is ongoing, but significant differences have been observed in the third growing season ('13) along the north to south axis, with most species doing better towards the northern end of the roof (in terms of percent ground coverage and plant spread and reproduction). Interestingly, plant growth in all f

  18. Saint Joseph's University Institute for Environmental Stewardship

    SciTech Connect (OSTI)

    McCann, Micahel P.; Springer, Clint J.

    2014-06-03

    Task A: Examination of the physiological, morphological, and reproductive responses of Panicum virgatum (switchgrass) cultivars identified as potential biofuel producing cultivars as well as naturally-occurring varieties of switchgrass to projected changes in climate for the central portion of the United States. This project was a multi-year project set in a field site located at the Konza Prairie Biological Station near Manhattan, KS USA. The major objective of the study was to understand the physiological and growth responses of the important biofuel grass species, Panicum virgatum (switch grass) to simulated changes in precipitation expected for the Central Plains region of the United States. Population level adaptation to broad-scale regional climates or within-population variation in genome size of this genetically and phenotypically diverse C4 grass species may influence the responses to future precipitation variability associated with climate change. Therefore, we investigated switchgrass responses to water variability between natural populations collected across latitudinal gradient and populations. P. virgatum plants from natural populations originating from Kansas, Oklahoma, and Texas received frequent, small precipitation events (ambient) or infrequent, large precipitation events (altered) to simulate contrasting rainfall variability expected from this region. We measured leaf-level physiology, aboveground biomass varied significantly by population origin but did not differ by genome size. Our results suggest that trait variation in P. virgatum is primarily attributed to population-level adaptation across latitudinal gradient, not genome size, and that neither population-level adaptation nor genome size may be important predictors of P. virgatum responses to future climatic conditions. Based solely on the data presented here, the most important consideration when deciding what varieties of switchgrass to cultivate for biofuel feedstocks under future climate scenarios is local adaptation and not necessarily genome size as has been hypothesized in the literature. Task B: Installation of an extensive green roof system on the Science Center at Saint Joseph's University for research, research-training and educational outreach activities. An experimental green roof system was designed and installed by an outside contractor (Roofmeadows) on the roof of the Science Center at Saint Joseph's University. The roof system includes four test plots, each with a different drainage system, instrumentation to monitor storm water retention, roof deck temperature, heat flux into and out of the building, rain fall, wind speed and direction, relative humidity and heat emission from the roof system. The vegetative roof was planted with 26 species of plants, distributed throughout the roof area, to assess species/variety growth and coverage characteristics, both in terms of the different drain layer systems, and in terms of the different exposures along the north to south axis of the building. Analysis of the drain layer performance, in terms of storm water retention, shows that the aggregate (stone) drainage layer system performed the best, with the moisture management mat system second, and the geotextile drain layer and reservoir sheet layer systems coming in last. This information is of value in the planning and design of vegetative roof systems since the different types of drainage layer systems have different installation costs and different weights. The different drainage layer systems also seem to be having an impact on plant growth and spread with the test plot with the reservoir sheet layer actually having the poorest plant coverage and plant spread of all areas of the roof studied. Plant growth performance analysis is ongoing, but significant differences have been observed in the third growing season ('13) along the north to south axis, with most species doing better towards the northern end of the roof (in terms of percent ground coverage and plant spread and reproduction). Interestingly, plant growth in all f

  19. Saint Joseph's University Institute for Environmental Stewardship

    SciTech Connect (OSTI)

    McCann, Michael P.; Springer, Clint J.

    2014-06-05

    Task A: Examination of the physiological, morphological, and reproductive responses of Panicum virgatum (switchgrass) cultivars identified as potential biofuel producing cultivars as well as naturally-occurring varieties of switchgrass to projected changes in climate for the central portion of the United States. This project was a multi-year project set in a field site located at the Konza Prairie Biological Station near Manhattan, KS USA. The major objective of the study was to understand the physiological and growth responses of the important biofuel grass species, Panicum virgatum (switch grass) to simulated changes in precipitation expected for the Central Plains region of the United States. Population level adaptation to broad-scale regional climates or within-population variation in genome size of this genetically and phenotypically diverse C4 grass species may influence the responses to future precipitation variability associated with climate change. Therefore, we investigated switchgrass responses to water variability between natural populations collected across latitudinal gradient and populations. P. virgatum plants from natural populations originating from Kansas, Oklahoma, and Texas received frequent, small precipitation events (ambient) or infrequent, large precipitation events (altered) to simulate contrasting rainfall variability expected from this region. We measured leaf-level physiology, aboveground biomass varied significantly by population origin but did not differ by genome size. Our results suggest that trait variation in P. virgatum is primarily attributed to population-level adaptation across latitudinal gradient, not genome size, and that neither population-level adaptation nor genome size may be important predictors of P. virgatum responses to future climatic conditions. Based solely on the data presented here, the most important consideration when deciding what varieties of switchgrass to cultivate for biofuel feedstocks under future climate scenarios is local adaptation and not necessarily genome size as has been hypothesized in the literature. Task B: Installation of an extensive green roof system on the Science Center at Saint Joseph's University for research, research-training and educational outreach activities. An experimental green roof system was designed and installed by an outside contractor (Roofmeadows) on the roof of the Science Center at Saint Joseph's University. The roof system includes four test plots, each with a different drainage system, instrumentation to monitor storm water retention, roof deck temperature, heat flux into and out of the building, rain fall, wind speed and direction, relative humidity and heat emission from the roof system. The vegetative roof was planted with 26 species of plants, distributed throughout the roof area, to assess species/variety growth and coverage characteristics, both in terms of the different drain layer systems, and in terms of the different exposures along the north to south axis of the building. Analysis of the drain layer performance, in terms of storm water retention, shows that the aggregate (stone) drainage layer system performed the best, with the moisture management mat system second, and the geotextile drain layer and reservoir sheet layer systems coming in last. This information is of value in the planning and design of vegetative roof systems since the different types of drainage layer systems have different installation costs and different weights. The different drainage layer systems also seem to be having an impact on plant growth and spread with the test plot with the reservoir sheet layer actually having the poorest plant coverage and plant spread of all areas of the roof studied. Plant growth performance analysis is ongoing, but significant differences have been observed in the third growing season ('13) along the north to south axis, with most species doing better towards the northern end of the roof (in terms of percent ground coverage and plant spread and reproduction). Interestingly, plant growth in all f

  20. Bio-energy feedstock yields and their water quality benefits in Mississippi

    SciTech Connect (OSTI)

    Parajuli, Prem B.

    2011-08-10

    Cellulosic and agricultural bio-energy crops can, under careful management, be harvested as feedstock for bio-fuels production and provide environmental benefits. However, it is required to quantify their relative advantages in feedstock production and water quality. The primary objective of this research was to evaluate potential feedstock yield and water quality benefit scenarios of bioenergy crops: Miscanthus (Miscanthus-giganteus), Switchgrass (Panicum virgatum), Johnsongrass (Sorghum halepense), Alfalfa (Medicago sativa L.), Soybean {Glycine max (L.) Merr.}, and Corn (Lea mays) in the Upper Pearl River watershed (UPRW), Mississippi using a Soil and Water Assessment Tool (SWAT). The SWAT model was calibrated (January 1981 to December 1994) and validated (January 1995 to September 2008) using monthly measured stream flow data. The calibrated and validated model determined good to very good performance for stream flow prediction (R2 and E from 0.60 to 0.86). The RMSE values (from 14 m3 s-1 to 37 m3 s-1) were estimated at similar levels of errors during model calibration and validation. The long-term average annual potential feedstock yield as an alternative energy source was determined the greatest when growing Miscanthus grass (373,849 Mg) as followed by Alfalfa (206,077 Mg), Switchgrass (132,077 Mg), Johnsongrass (47,576 Mg), Soybean (37,814 Mg), and Corn (22,069 Mg) in the pastureland and cropland of the watershed. Model results determined that average annual sediment yield from the Miscanthus grass scenario determined the least (1.16 Mg/ha) and corn scenario the greatest (12.04 Mg/ha). The SWAT model simulated results suggested that growing Miscanthus grass in the UPRW would have the greatest potential feedstock yield and water quality benefits.

  1. Strategies for enhancing the effectiveness of metagenomic-based enzyme discovery in lignocellulytic microbial communities

    SciTech Connect (OSTI)

    DeAngelis, K.M.; Gladden, J.G.; Allgaier, M.; D'haeseleer, P.; Fortney, J.L.; Reddy, A.; Hugenholtz, P.; Singer, S.W.; Vander Gheynst, J.; Silver, W.L.; Simmons, B.; Hazen, T.C.

    2010-03-01

    Producing cellulosic biofuels from plant material has recently emerged as a key U.S. Department of Energy goal. For this technology to be commercially viable on a large scale, it is critical to make production cost efficient by streamlining both the deconstruction of lignocellulosic biomass and fuel production. Many natural ecosystems efficiently degrade lignocellulosic biomass and harbor enzymes that, when identified, could be used to increase the efficiency of commercial biomass deconstruction. However, ecosystems most likely to yield relevant enzymes, such as tropical rain forest soil in Puerto Rico, are often too complex for enzyme discovery using current metagenomic sequencing technologies. One potential strategy to overcome this problem is to selectively cultivate the microbial communities from these complex ecosystems on biomass under defined conditions, generating less complex biomass-degrading microbial populations. To test this premise, we cultivated microbes from Puerto Rican soil or green waste compost under precisely defined conditions in the presence dried ground switchgrass (Panicum virgatum L.) or lignin, respectively, as the sole carbon source. Phylogenetic profiling of the two feedstock-adapted communities using SSU rRNA gene amplicon pyrosequencing or phylogenetic microarray analysis revealed that the adapted communities were significantly simplified compared to the natural communities from which they were derived. Several members of the lignin-adapted and switchgrass-adapted consortia are related to organisms previously characterized as biomass degraders, while others were from less well-characterized phyla. The decrease in complexity of these communities make them good candidates for metagenomic sequencing and will likely enable the reconstruction of a greater number of full length genes, leading to the discovery of novel lignocellulose-degrading enzymes adapted to feedstocks and conditions of interest.

  2. Development of a Bulk-Format System to Harvest, Handle, Store, and Deliver High-Tonnage

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Abstract Development of a Bulk-Format System to Harvest, Handle, Store, and Deliver High- Tonnage Low-Moisture Switchgrass Feedstock Genera Energy (Lead), University of Tennessee, Laidig Systems, Inc., Marathon Equipment, Dupont-Danisco Cellulosic Ethanol, Deere & Company, Idaho National Lab, Oak Ridge National Lab Prepared by Alvin Womac, Biosystems Engineering, Univ. Tenn. A high-tonnage feedstock supply system was developed using agricultural, transportation, and industrial technologies

  3. Guiding optimal biofuels : a comparative analysis of the biochemical production of ethanol and fatty acid ethyl esters from switchgrass.

    SciTech Connect (OSTI)

    Paap, Scott M.; West, Todd H.; Manley, Dawn Kataoka; Dibble, Dean C.; Simmons, Blake Alexander; Steen, Eric J.; Beller, Harry R.; Keasling, Jay D.; Chang, Shiyan

    2013-01-01

    In the current study, processes to produce either ethanol or a representative fatty acid ethyl ester (FAEE) via the fermentation of sugars liberated from lignocellulosic materials pretreated in acid or alkaline environments are analyzed in terms of economic and environmental metrics. Simplified process models are introduced and employed to estimate process performance, and Monte Carlo analyses were carried out to identify key sources of uncertainty and variability. We find that the near-term performance of processes to produce FAEE is significantly worse than that of ethanol production processes for all metrics considered, primarily due to poor fermentation yields and higher electricity demands for aerobic fermentation. In the longer term, the reduced cost and energy requirements of FAEE separation processes will be at least partially offset by inherent limitations in the relevant metabolic pathways that constrain the maximum yield potential of FAEE from biomass-derived sugars.

  4. Report to Congress on the U.S. Department of Energy`s Environmental Management Science Program: Research funded and its linkages to environmental cleanup problems, and Environmental Management Science Program research award abstracts. Volume 2 of 3 -- Appendix B

    SciTech Connect (OSTI)

    1998-04-01

    The Department of Energy`s Environmental Management Science Program (EMSP) serves as a catalyst for the application of scientific discoveries to the development and deployment of technologies that will lead to reduction of the costs and risks associated with cleaning up the nation`s nuclear complex. Appendix B provides details about each of the 202 research awards funded by the EMSP. This information may prove useful to researchers who are attempting to address the Department`s environmental management challenges in their work, program managers who are planning, integrating, and prioritizing Environmental Management projects, and stakeholders and regulators who are interested in the Department`s environmental challenges. The research award information is organized by the state and institution in which the lead principal investigator is located. In many cases, the lead principal investigator is one of several investigators at a number of different institutions. In these cases, the lead investigator (major collaborator) at each of the additional institutions is listed. Each research award abstract is followed by a list of high cost projects that can potentially be impacted by the research results. High cost projects are Environmental Management projects that have total costs greater than $50 million from the year 2007 and beyond, based on the March 1998 Accelerating Cleanup: Paths to Closure Draft data, and have costs or quantities of material associated with an Environmental Management problem area. High cost projects which must remain active in the year 2007 and beyond to manage high risk are also identified. Descriptions of these potentially related high cost Environmental Management projects can be found in Appendix C. Additional projects in the same problem area as a research award can be located using the Index of High Cost Environmental Management Projects by Problem Area, at the end of Appendices B and C.

  5. The 7. global warming international conference and expo: Abstracts

    SciTech Connect (OSTI)

    1996-12-31

    This conference was held April 1--3, 1996 in Vienna, Austria. The purpose of this conference was to provide a multidisciplinary forum for exchange of state-of-the-art information on global warming. Topics of interest include the following: global and regional natural resource management; energy, transportation, minerals and natural resource management; industrial technology and greenhouse gas emission; strategies for the mitigation of greenhouse gas emission; greenhouse gas production/utilization and carbon budgets; strategies for promoting the understanding of global change; international policy strategy and economics; and global warming and public health. Individual papers have been processed separately for inclusion in the appropriate data bases.

  6. 1112323-danimer-abstract-hydraulic-fractures | netl.doe.gov

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    fracturing treatments including: less hydraulic horsepower requirements, decreased footprint, simpler execution, lower water utilization, use of non-damaging biodegradable...

  7. Abstracts | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    ... We will test the feasibility of deriving particle size from the total photoelectron signal ... To test this idea we examined C8H17SH in a combined SPR4-point probe ...

  8. Microsoft Word - 2012 Abstract Book FINAL.docx

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... that accounts for the thermal correction induced by entropy and enthalpy changes. ... In addition, the dielectric constant is a primary factor in determining the solvent effect...

  9. UFO (UnFold Operator) computer program abstract

    SciTech Connect (OSTI)

    Kissel, L.; Biggs, F.

    1982-11-01

    UFO (UnFold Operator) is an interactive user-oriented computer program designed to solve a wide range of problems commonly encountered in physical measurements. This document provides a summary of the capabilities of version 3A of UFO.

  10. Laboratory Technology Research: Abstracts of FY 1996 projects

    SciTech Connect (OSTI)

    1996-12-31

    The Laboratory Technology Research (LTR) program supports high-risk, multidisciplinary research partnerships to investigate challenging scientific problems whose solutions have promising commercial potential. These partnerships capitalize on two great strengths of this country: the world-class basic research capability of the DOE Energy Research (ER) multi-program national laboratories and the unparalleled entrepreneurial spirit of American industry. Projects supported by the LTR program are conducted by the five ER multi-program laboratories: Argonne, Brookhaven, Lawrence Berkeley, Oak Ridge, and Pacific Northwest National Laboratories. These projects explore the applications of basic research advances relevant to Department of Energy`s (DOE) mission over a full range of scientific disciplines. The program presently emphasizes three critical areas of mission-related research: advanced materials, intelligent processing/manufacturing research, and sustainable environments.

  11. ABSTRACT: Bioenergy Harvesting Technologies to Supply Crop Residues...

    Broader source: Energy.gov (indexed) [DOE]

    the project objectives for the integration of advanced logistical systems and focused bioenergy harvesting technologies that supply crop residues and energy crops in a large bale...

  12. X-ray interferometry with spherically bent crystals (abstract)

    SciTech Connect (OSTI)

    Koch, Jeffrey A.

    2001-01-01

    Recent progress in manufacturing high-quality spherically bent crystals allows highly monochromatic x-ray beams to be produced, and allows efficient x-ray imaging with {mu}m-scale resolution. This article explores some of the constraints for x-ray interferometry utilizing spherically bent crystals and laser-produced plasma sources, and discusses several shearing interferometer concepts that might be experimentally investigated.

  13. Abstracts for EIA's Spring 2008 Meeting with the

    Gasoline and Diesel Fuel Update (EIA)

    Spring 2008 Meeting with the ASA Committee on Energy Statistics 1. The Role of A Federal Advisory Committee: A Case Study of the American Statistical Association (ASA) Committee on Energy Statistics, Calvin A. Kent, Former EIA Administrator and Dean of Lewis College of Business, Marshall University The energy crisis of the 1970's brought about the creation of the U. S. Department of Energy, which was created by congress in 1977. As a statistical organization within the Department of Energy, the

  14. Microsoft PowerPoint - aps2007-abstract.ppt

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ion to move out of the mse viewing footprint toroidally: R M SE tan mse v cos F L * For perpendicular injection of the dnb, the residence time of a beam ion is...

  15. Abstract - This paper describes the latest generic wind turbine

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Recognizing the need for transient stability models suitable for representing different types of wind turbine generators (WTGs), WECC, through its Renewable Energy Modeling Task...

  16. Program Abstracts: Formation and Growth of Atmospheric Aerosols

    SciTech Connect (OSTI)

    Peter H. McMurry; Markku Kulmala

    2006-09-07

    DOE provided $11,000 to sponsor the Workshop on New Particle Formation in the Atmosphere, which was held at The Riverwood Inn and Conference Center near Minneapolis, MN from September 7 to 9, 2006. Recent work has shown that new particle formation is an important atmospheric process that must be better understood due to its impact on cloud cover and the Earth's radiation balance. The conference was an informal gathering of atmospheric and basic scientists with expertise pertinent to this topic. The workshop included discussions of: atmospheric modeling; computational chemistry pertinent to clustering; ions and ion induced nucleation; basic laboratory and theoretical studies of nucleation; studies on neutral molecular clusters; interactions of organic compounds and sulfuric acid; composition of freshly nucleated particles. Fifty six scientists attended the conference. They included 27 senior scientists, 9 younger independent scientists (assistant professor or young associate professor level), 7 postdocs, 13 graduate students, 10 women, 35 North Americans (34 from the U.S.), 1 Asian, and 20 Europeans. This was an excellent informal workshop on an important topic. An effort was made to include individuals from communities that do not regularly interact. A number of participants have provided informal feedback indicating that the workshop led to research ideas and possible future collaborations.

  17. Geothermal energy abstract sets. Special report No. 14

    SciTech Connect (OSTI)

    Stone, C.

    1985-01-01

    This bibliography contains annotated citations in the following areas: (1) case histories; (2) drilling; (3) reservoir engineering; (4) injection; (5) geothermal well logging; (6) environmental considerations in geothermal development; (7) geothermal well production; (8) geothermal materials; (9) electric power production; (10) direct utilization of geothermal energy; (11) economics of geothermal energy; and (12) legal, regulatory and institutional aspects. (ACR)

  18. Abstract Testimony of Dan S. Born* President, Louisiana Chemical...

    Broader source: Energy.gov (indexed) [DOE]

    Louisiana Chemical Association 2040 One American Place Baton Rouge, LA 70825 dan@lca.org 225.376.7660 Presented to the Quadrennial Energy Review Task Force May 27, 2014 LSU...

  19. 27th Annual SSRL Users' Meeting -- Poster Session & Abstract...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    size of 10" (25 cm), section heading letters of 34" (2 cm), and text and figure lettering not less than 38" (1 cm). Heading: A heading label including the title, author...

  20. 11th LANSCE School on Neutron Scattering | School Abstract

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    materials, geological disposition of nuclear waste, additive manufacturing, nanoscience for drug delivery, solid state refrigeration, nanoscience for energy efficiency, etc.). ...

  1. Laboratory technology research - abstracts of FY 1997 projects

    SciTech Connect (OSTI)

    1997-11-01

    The Laboratory Technology Research (LTR) program supports high-risk, multidisciplinary research partnerships to investigate challenging scientific problems whose solutions have promising commercial potential. These partnerships capitalize on two great strengths of this country: the world-class basic research capability of the DOE Energy Research (ER) multi-program national laboratories and the unparalleled entrepreneurial spirit of American industry. A distinguishing feature of the ER multi-program national laboratories is their ability to integrate broad areas of science and engineering in support of national research and development goals. The LTR program leverages this strength for the Nation`s benefit by fostering partnerships with US industry. The partners jointly bring technology research to a point where industry or the Department`s technology development programs can pursue final development and commercialization. Projects supported by the LTR program are conducted by the five ER multi-program laboratories. These projects explore the applications of basic research advances relevant to DOE`s mission over a full range of scientific disciplines. The program presently emphasizes three critical areas of mission-related research: advanced materials; intelligent processing/manufacturing research; and sustainable environments.

  2. Poster Abstract of Eighteenth ARM STM: Sort by Title

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    POSTER Naud, C., Del Genio, A., Haeffelin, M., Morille, Y., Noel, V., Turner, D., Wang, Z., Comstock, J., and Lo, C. Comparing CAM3 and AM2 Simulations for TWP-ICE Using...

  3. Microsoft Word - PVSC 2013 Abstract-Capacitor_BK[1].docx

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Plasma Science, vol. 26 (5), pp. 1368-1392, 1998. 14 W. Sarjeant, F. MacDougall, D. Larson, and I. Kohlberg, "Energy storage capacitors: Aging, and diagnostic approaches for...

  4. Abstracts for EIA's Fall 2008 Meeting with the ASA Committee...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... ASA Committee Recommendations: Good survey, good methodology, great response rate. It is ... its customer surveys short and concise preceded by a well thought-out research design. ...

  5. Abstract: Design and Demonstration of an Advanced Agricultural...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Project Director Principal Investigator: Fred Circle, President Project Title: Design and Demonstration of an Advanced Agricultural Feedstock Supply System for...

  6. An Innovative Carbonate Fuel Cell Matrix, Abstract #188

    SciTech Connect (OSTI)

    Hilmi, Abdelkader; Surendranath, Arun; Yuh, Chao-Yi

    2015-05-28

    The electrolyte matrix in direct carbonate fuel cell (DFC) is a microporous ceramic structure sandwiched between the electrodes to isolate the fuel from the oxidant, store electrolyte and facilitate ionic transport. FCE has advanced DFC electrolyte matrix over the years and demonstrated that the matrix meets the requirements for greater than 5 year life based on accelerated tests and field stack operations. However, development of advanced designs and materials that can further increase the performance and extend cell life will enable accelerated MCFC deployment. This paper will report the progress on the development of an unique and innovative matrix design that offers numerous benefits to the carbonate fuel cell performance and durability. In addition, this paper will also review parameters that affect matrix material stability and approaches to extend cell life.

  7. Abstract - This paper documents the effect that the PI controller

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    into the expected numerical performance of the model. The study approach is straightforward and consists of a root locus analysis of the test system used in 2. The test...

  8. Microsoft Word - 2012AIChE_ExtendAbstract_Duan.docx

    Office of Scientific and Technical Information (OSTI)

    ... steps are optimized in order to achieve minimal energetic and operational costs. ... and desorption because of the minimal energy costs at the given temperature and pressure. ...

  9. Abstracts | U.S. DOE Office of Science (SC)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Apollo astronauts on their missions to the moon. It taught us to engineer genes, "superconduct" electricity, visualize individual atoms, build "plastics" ten times stronger than...

  10. SERS internship spring 1996 abstracts and research papers

    SciTech Connect (OSTI)

    Williams, B.

    1996-07-01

    This is the student symposium for the Science & Engineering Research Semester, May 2-3, 1996. A variety of topics are covered.

  11. Microsoft Word - 2016 Call for Abstracts.docx

    Office of Environmental Management (EM)

    CALL F OR A BSTRACTS For t he 2016 N ational E nvironmental J ustice C onference a nd T raining Program The 2 016 N ational E nvironmental J ustice C onference a nd T raining P rogram planners a re i nviting i ndividuals t o s ubmit a bstracts, n ot t o e xceed t wo p ages, related t o e nvironmental j ustice. E ach a bstract s hould i nclude t he s ubmitter's name, a ffiliation, f ull c ontact i nformation, a nd t he a mount o f t ime b eing requested. The 2016 Conference will be held jointly

  12. Mapping intra-field yield variation using high resolution satellite imagery to integrate bioenergy and environmental stewardship in an agricultural watershed

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Hamada, Yuki; Ssegane, Herbert; Negri, Maria Cristina

    2015-07-31

    Biofuels are important alternatives for meeting our future energy needs. Successful bioenergy crop production requires maintaining environmental sustainability and minimum impacts on current net annual food, feed, and fiber production. The objectives of this study were to: (1) determine under-productive areas within an agricultural field in a watershed using a single date; high resolution remote sensing and (2) examine impacts of growing bioenergy crops in the under-productive areas using hydrologic modeling in order to facilitate sustainable landscape design. Normalized difference indices (NDIs) were computed based on the ratio of all possible two-band combinations using the RapidEye and the National Agriculturalmore » Imagery Program images collected in summer 2011. A multiple regression analysis was performed using 10 NDIs and five RapidEye spectral bands. The regression analysis suggested that the red and near infrared bands and NDI using red-edge and near infrared that is known as the red-edge normalized difference vegetation index (RENDVI) had the highest correlation (R2 = 0.524) with the reference yield. Although predictive yield map showed striking similarity to the reference yield map, the model had modest correlation; thus, further research is needed to improve predictive capability for absolute yields. Forecasted impact using the Soil and Water Assessment Tool model of growing switchgrass (Panicum virgatum) on under-productive areas based on corn yield thresholds of 3.1, 4.7, and 6.3 Mg·ha-1 showed reduction of tile NO3-N and sediment exports by 15.9%–25.9% and 25%–39%, respectively. Corresponding reductions in water yields ranged from 0.9% to 2.5%. While further research is warranted, the study demonstrated the integration of remote sensing and hydrologic modeling to quantify the multifunctional value of projected future landscape patterns in a context of sustainable bioenergy crop production.« less

  13. Mapping intra-field yield variation using high resolution satellite imagery to integrate bioenergy and environmental stewardship in an agricultural watershed

    SciTech Connect (OSTI)

    Hamada, Yuki; Ssegane, Herbert; Negri, Maria Cristina

    2015-07-31

    Biofuels are important alternatives for meeting our future energy needs. Successful bioenergy crop production requires maintaining environmental sustainability and minimum impacts on current net annual food, feed, and fiber production. The objectives of this study were to: (1) determine under-productive areas within an agricultural field in a watershed using a single date; high resolution remote sensing and (2) examine impacts of growing bioenergy crops in the under-productive areas using hydrologic modeling in order to facilitate sustainable landscape design. Normalized difference indices (NDIs) were computed based on the ratio of all possible two-band combinations using the RapidEye and the National Agricultural Imagery Program images collected in summer 2011. A multiple regression analysis was performed using 10 NDIs and five RapidEye spectral bands. The regression analysis suggested that the red and near infrared bands and NDI using red-edge and near infrared that is known as the red-edge normalized difference vegetation index (RENDVI) had the highest correlation (R2 = 0.524) with the reference yield. Although predictive yield map showed striking similarity to the reference yield map, the model had modest correlation; thus, further research is needed to improve predictive capability for absolute yields. Forecasted impact using the Soil and Water Assessment Tool model of growing switchgrass (Panicum virgatum) on under-productive areas based on corn yield thresholds of 3.1, 4.7, and 6.3 Mgha-1 showed reduction of tile NO3-N and sediment exports by 15.9%25.9% and 25%39%, respectively. Corresponding reductions in water yields ranged from 0.9% to 2.5%. While further research is warranted, the study demonstrated the integration of remote sensing and hydrologic modeling to quantify the multifunctional value of projected future landscape patterns in a context of sustainable bioenergy crop production.

  14. Developing Association Mapping in Polyploid Perennial Biofuel Grasses: Final Technical Report

    SciTech Connect (OSTI)

    Buckler, Edward S; Casler, Michael D; Cherney, Jerome H

    2012-01-20

    This project had six objectives, four of which have been completed: 1) Association panels of diverse populations and linkage populations for switchgrass and reed canarygrass (~1,000 clones each) were assembled and planted in two sites (Ithaca, NY and Arlington, WI); 2) Key biofeedstock characteristics were evaluated in these panels for three field seasons; 3) High density SNP markers were developed in switchgrass; and 4) Switchgrass association panels and linkage populations were genotyped. The remaining two original objectives will be met in the next year, as the analyses are completed and papers published: 5) Switchgrass population structure and germplasm diversity will be evaluated; and 6) Association mapping will be established and marker based breeding values estimated in switchgrass. We also completed a study of the chromosome-number variation found in switchgrass.

  15. Developing County-level Water Footprints of Biofuel Produced from

    Office of Scientific and Technical Information (OSTI)

    Switchgrass and Miscanthus x Giganteus in the United States (Technical Report) | SciTech Connect Technical Report: Developing County-level Water Footprints of Biofuel Produced from Switchgrass and Miscanthus x Giganteus in the United States Citation Details In-Document Search Title: Developing County-level Water Footprints of Biofuel Produced from Switchgrass and Miscanthus x Giganteus in the United States Authors: Wu, May M. [1] ; Chiu, Yi-Wen [1] + Show Author Affiliations Argonne National

  16. Downregulation of Cinnamyl Alcohol Dehydrogenase (CAD) Leads to Improved

    Office of Scientific and Technical Information (OSTI)

    Saccharification Efficiency in Switchgrass (Journal Article) | SciTech Connect Downregulation of Cinnamyl Alcohol Dehydrogenase (CAD) Leads to Improved Saccharification Efficiency in Switchgrass Citation Details In-Document Search Title: Downregulation of Cinnamyl Alcohol Dehydrogenase (CAD) Leads to Improved Saccharification Efficiency in Switchgrass Authors: Chunxiang,Fu ; Xirong,Xiao ; Yajun,Xi ; Yaxin,Ge ; Fang,Chen ; Joseph,Bouton ; Richard A.,Dixon ; Zeng-Yu,Wang ; , Publication Date:

  17. Carbohydrate and lignin are simultaneously solubilized from unpretreated

    Office of Scientific and Technical Information (OSTI)

    switchgrass by microbial action at high temperature (Journal Article) | SciTech Connect Carbohydrate and lignin are simultaneously solubilized from unpretreated switchgrass by microbial action at high temperature Citation Details In-Document Search Title: Carbohydrate and lignin are simultaneously solubilized from unpretreated switchgrass by microbial action at high temperature Authors: Kataeva, Irina [1] ; Foston, Marcus [2] ; Yang, Sung-Jae [1] ; Pattahil, Sivakumar [1] ; Biswal, Ajaya K

  18. A new recipe for biofuel: Genetic diversity can lead to more productive

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    growth in switchgrass crops | Argonne National Laboratory This plot shows the yields of three switchgrass varieties, or cultivars - Kanlow, Cave-in-Rock and Southlow - and a mixture of the three. The mixture is either the highest yielding or approximately equal to the highest yielding crop each year, closely following the Southlow crop in 2014. These measurements are from plots without added fertilizer (nitrogen inputs). This plot shows the yields of three switchgrass varieties, or cultivars

  19. EERE Success Story-Ionic Liquid Pretreatment Process for Biomass...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Addthis Related Articles Strains of E. coli bacteria were engineered to digest switchgrass biomass and synthesize its sugars into gasoline, diesel and jet fuel. | Image courtesy of ...

  20. Energy Department Announces $7 Million to Develop Advanced Logistics...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    to reduce sources of variation along the supply chain of multiple, high-impact biomass sources (pine and switchgrass) and deliver a consistent feedstock optimized for performance. ...

  1. Developing County-level Water Footprints of Biofuel Produced...

    Office of Scientific and Technical Information (OSTI)

    Developing County-level Water Footprints of Biofuel Produced from Switchgrass and Miscanthus x Giganteus in the United States Citation Details In-Document Search Title: Developing...

  2. Special Feature: Energy - The Spark that Ignited DOE Supercomputing

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Biofuels: Turning Grass into Gas If researchers can unlock the sugars stored in plant cellulose, then crops like this switchgrass could be turned into biofuels, rather than using...

  3. Developing County-level Water Footprints of Biofuel Produced...

    Office of Scientific and Technical Information (OSTI)

    Water Footprints of Biofuel Produced from Switchgrass and Miscanthus x Giganteus in the United States Citation Details In-Document Search Title: Developing County-level Water ...

  4. Carbohydrate and lignin are simultaneously solubilized from unpretreat...

    Office of Scientific and Technical Information (OSTI)

    Carbohydrate and lignin are simultaneously solubilized from unpretreated switchgrass by microbial action at high temperature Citation Details In-Document Search Title: Carbohydrate ...

  5. Energy Department Announces $7 Million to Develop Advanced Logistics...

    Broader source: Energy.gov (indexed) [DOE]

    biorefineries. Examples of bioenergy feedstocks include corn stover, switchgrass, and woody biomass. By investing in this type of research, development, and demonstration, the...

  6. Microsoft Word - RM1_Tidal Turbine_UW Tidal Resource-Abstract...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    turbine operating in a narrow, tidal channel. The site is a generalized version of Tacoma Narrows, Puget Sound, Washington. The resource is a mixed, mainly semidiurnal tidal...

  7. Waste treatment by dialysis. (Latest citations from Pollution abstracts). Published Search

    SciTech Connect (OSTI)

    1995-01-01

    The bibliography contains citations concerning the use of dialysis in the treatment of wastewaters. Techniques for the removal of metals, ammonia, waste acids, nitrates, and phosphates are described. Special attention is given to the desalination of liquid wastes. Applications of this technology to the treatment of effluent from the agrochemical, petrochemical, tanning, and electroplating industries are discussed. (Contains a minimum of 60 citations and includes a subject term index and title list.)

  8. Waste treatment by dialysis. (Latest citations from Pollution abstracts). Published Search

    SciTech Connect (OSTI)

    1996-02-01

    The bibliography contains citations concerning the use of dialysis in the treatment of wastewaters. Techniques for the removal of metals, ammonia, waste acids, nitrates, and phosphates are described. Special attention is given to the desalination of liquid wastes. Applications of this technology to the treatment of effluent from the agrochemical, petrochemical, tanning, and electroplating industries are discussed. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  9. Eighth SIAM conference on parallel processing for scientific computing: Final program and abstracts

    SciTech Connect (OSTI)

    1997-12-31

    This SIAM conference is the premier forum for developments in parallel numerical algorithms, a field that has seen very lively and fruitful developments over the past decade, and whose health is still robust. Themes for this conference were: combinatorial optimization; data-parallel languages; large-scale parallel applications; message-passing; molecular modeling; parallel I/O; parallel libraries; parallel software tools; parallel compilers; particle simulations; problem-solving environments; and sparse matrix computations.

  10. Natural gas: Marine transportation. (Latest citations from Oceanic Abstracts). Published Search

    SciTech Connect (OSTI)

    Not Available

    1994-04-01

    The bibliography contains citations concerning the design, construction, and operation of ships for the transport of liquified natural gas. Topics include safety devices, materials handling equipment for loading and unloading liquified natural gas, new hull and vessel designs, gas turbine propulsion systems, cargo tank designs and requirements, and liguid load dynamics. (Contains 250 citations and includes a subject term index and title list.)

  11. Natural gas: Marine transportation. (Latest citations from Oceanic Abstracts). Published Search

    SciTech Connect (OSTI)

    Not Available

    1992-11-01

    The bibliography contains citations concerning the design, construction, and operation of ships for the transport of liquified natural gas. Topics include safety devices, materials handling equipment for loading and unloading liquified natural gas, new hull and vessel designs, gas turbine propulsion systems, cargo tank designs and requirements, and liguid load dynamics. (Contains 250 citations and includes a subject term index and title list.)

  12. Microsoft Word - RM1_Tidal Turbine_ARL_PTO_OMAE_Paper-Abstract...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    system to deliver the generated electric power to the grid at the required state. Like wind turbine applications, the PTO system must be designed for high reliability, good...

  13. Fourth SIAM conference on mathematical and computational issues in the geosciences: Final program and abstracts

    SciTech Connect (OSTI)

    1997-12-31

    The conference focused on computational and modeling issues in the geosciences. Of the geosciences, problems associated with phenomena occurring in the earth`s subsurface were best represented. Topics in this area included petroleum recovery, ground water contamination and remediation, seismic imaging, parameter estimation, upscaling, geostatistical heterogeneity, reservoir and aquifer characterization, optimal well placement and pumping strategies, and geochemistry. Additional sessions were devoted to the atmosphere, surface water and oceans. The central mathematical themes included computational algorithms and numerical analysis, parallel computing, mathematical analysis of partial differential equations, statistical and stochastic methods, optimization, inversion, homogenization and renormalization. The problem areas discussed at this conference are of considerable national importance, with the increasing importance of environmental issues, global change, remediation of waste sites, declining domestic energy sources and an increasing reliance on producing the most out of established oil reservoirs.

  14. Eighth workshop on crystalline silicon solar cell materials and processes: Extended abstracts and papers

    SciTech Connect (OSTI)

    1998-08-01

    The theme of this workshop is Supporting the Transition to World Class Manufacturing. This workshop provides a forum for an informal exchange of information between researchers in the photovoltaic and non-photovoltaic fields on various aspects of impurities and defects in silicon, their dynamics during device processing, and their application in defect engineering. This interaction helps establish a knowledge base that can be used for improving device fabrication processes to enhance solar-cell performance and reduce cell costs. It also provides an excellent opportunity for researchers from industry and universities to recognize mutual needs for future joint research. The workshop format features invited review presentations, panel discussions, and two poster sessions. The poster sessions create an opportunity for both university and industrial researchers to present their latest results and provide a natural forum for extended discussions and technical exchanges.

  15. Hydroelectric power: Technology and planning. (Latest citations from the Selected Water Resources Abstracts database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-08-01

    The bibliography contains citations concerning hydroelectric power technology and planning. Reservoir, dam, water tunnel, and hydraulic gate design, construction, and operation are discussed. Water supply, flood control, irrigation programs, and environmental effects of hydroelectric power plants are presented. Mathematical modeling and simulation analysis are also discussed. (Contains 250 citations and includes a subject term index and title list.)

  16. Hydroelectric power: Technology and planning. (Latest citations from the Selected Water Resources Abstracts database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1994-05-01

    The bibliography contains citations concerning hydroelectric power technology and planning. Reservoir, dam, water tunnel, and hydraulic gate design, construction, and operation are discussed. Water supply, flood control, irrigation programs, and environmental effects of hydroelectric power plants are presented. Mathematical modeling and simulation analysis are also discussed. (Contains 250 citations and includes a subject term index and title list.)

  17. Seventh annual DOE LLWMP participants' information meeting. DOE Low-Level Waste Management Program. Abstracts

    SciTech Connect (OSTI)

    Not Available

    1985-08-01

    The following sessions were held: International Low-Level Waste Management Activities; Low-Level Waste Disposal; Characteristics and Treatment of Low-Level Waste; Environmental Monitoring and Performance; Greater Confinement and Alternative Disposal Methods; Low-Level Waste Management; Corrective Measures; Performance Prediction and Assessment; and Siting New Defense and Commercial Low-Level Waste Disposal Facilities.

  18. Reduction of nitrogen oxide emissions from fossil fuels. (Latest citations from Pollution abstracts). Published Search

    SciTech Connect (OSTI)

    1997-05-01

    The bibliography contains citations concerning the removal of nitrogen compounds from fossil fuels and their post-combustion emissions. Removal methods include biological denitrification, fluidized bed combustion, and flue gas denitrification. Applications to utilities, petroleum refineries, and other industries are presented. The design of nitrogen control systems and process optimization are described. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  19. Reduction of nitrogen oxide emissions from fossil fuels. (Latest citations from Pollution abstracts). Published Search

    SciTech Connect (OSTI)

    1996-01-01

    The bibliography contains citations concerning the removal of nitrogen compounds from fossil fuels and their post-combustion emissions. Removal methods include biological denitrification, fluidized bed combustion, and flue gas denitrification. Applications to utilities, petroleum refineries, and other industries are presented. The design of nitrogen control systems and process optimization are described. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  20. Fourth conference on radiation protection and dosimetry: Proceedings, program, and abstracts

    SciTech Connect (OSTI)

    Casson, W.H.; Thein, C.M.; Bogard, J.S.

    1994-10-01

    This Conference is the fourth in a series of conferences organized by staff members of Oak Ridge National Laboratory in an effort to improve communication in the field of radiation protection and dosimetry. Scientists, regulators, managers, professionals, technologists, and vendors from the United States and countries around the world have taken advantage of this opportunity to meet with their contemporaries and peers in order to exchange information and ideas. The program includes over 100 papers in 9 sessions, plus an additional session for works in progress. Papers are presented in external dosimetry, internal dosimetry, radiation protection programs and assessments, developments in instrumentation and materials, environmental and medical applications, and on topics related to standards, accreditation, and calibration. Individual papers are indexed separately on EDB.

  1. http://www.opticsinfobase.org/abstract.cfm?uri=ao-22-1-95

    National Nuclear Security Administration (NNSA)

    tests. Predicted mass extinction coefficients, under the assumption of dust material density of 2.5 g cm -3 , are of the order of 0.05 m 2 g -1 at both visible and IR...

  2. Nuclear reactor accidents: Chernobyl, TMI, and Windscale. (Latest citations from Pollution abstracts). Published Search

    SciTech Connect (OSTI)

    1995-12-01

    The bibliography contains citations concerning studies and measurements of the radiological consequences of nuclear reactor accidents. The citations cover specifically the Chernobyl reactor in the USSR, the Three Mile Island (TMI) reactor in the US, and the Windscale reactor in the UK. Included are detection and monitoring of the fallout; the resultant runoff into rivers, lakes, and the sea; the radiation effects on people; and the transfrontier radioactive contamination of the environment. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  3. ABSTRACT: The Community Environmental Monitoring Program: Reducing Public Perception of Risk Through Stakeholder Involvement

    SciTech Connect (OSTI)

    T. Hartwell

    2007-02-28

    Between 1951 and 1992, 928 nuclear tests were conducted at the Nevada Test Site (NTS), including 100 atmospheric and 828 underground tests. Initial public reaction to the tests was largely supportive, but by the late 1950s this began to change, largely as a result of fear of the potential for adverse health effects to be caused by exposure to ionizing radiation resulting from the tests. The nuclear power plant accident at Three Mile Island in 1979 served to heighten these fears, as well as foster a general distrust of the federal agencies involved and low public confidence in monitoring results. Modeled after a similar program that involved the public in monitoring activities around the Three Mile Island nuclear power plant, the Community Environmental Monitoring Program (CEMP) has promoted stakeholder involvement, awareness, and understanding of radiological surveillance in communities surrounding the NTS since 1981. It involves stakeholders in the operation, data collection, and dissemination of information obtained from a network of 29 stations across a wide area of Nevada, Utah, and California. It is sponsored by the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office (NNSA/NSO) and administered by the Desert Research Institute (DRI) of the Nevada System of Higher Education. Since assuming administration of the program in 2000, DRI has accomplished significant enhancements to the network's data collection and transmission capabilities. A robust datalogging and communications system allows for the near real-time transmission of data to a platform maintained by DRI's Western Regional Climate Center, where the data are uploaded and displayed on a publicly accessible web site (http://cemp.dri.edu/). Additionally, the CEMP can serve as part of an emergency response network in the event of an unplanned radiological release from the NTS, and also provides an excellent platform for testing new environmental sensor technologies. Finally, the CEMP provides training workshops for involved stakeholders, and educational programs, which help to alleviate public perception of risk of health effects from past activities conducted at the NTS.

  4. ABSTRACT: Bioenergy Harvesting Technologies to Supply Crop Residues In a Densified Large Square Bale Format

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Integration of Advanced Logistical Systems and Focused Bioenergy Harvesting Technologies to Supply Crop Residues and Energy Crops in a Densified Large Square Bale Format OBP WBS: 1.2.1.4 Principal Investigator: Maynard Herron Co-Principal Investigator: Bob Matousek Performing Organization: AGCO Sub-Recipients: INL, Stinger Inc., OSU, ISU, TAMU, Noble Foundation Project objectives support the adoption and production goals of the Office of Biomass Programs for feedstock adoption and cost

  5. Abstract: Design and Demonstration of an Advanced Agricultural Feedstock Supply System for Lignocellulosic Bioenergy Production

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Applicant Name: FDC Enterprises Grasslands Services Project Director / Principal Investigator: Fred Circle, President Project Title: Design and Demonstration of an Advanced Agricultural Feedstock Supply System for Lignocellulosic Bioenergy Production Project Objectives: The primary objectives of this project are to design and fabricate key agricultural harvest equipment improvements that will significantly reduce the harvest, staging, and hauling costs associated with supplying herbaceous energy

  6. Coal mine wastes. (Latest citations from the Selected Water Resources Abstracts database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1994-05-01

    The bibliography contains citations concerning coal mining wastes, refuse dumps, and spoil. The disposal, environmental impact, waste treatment, utilization, and pollution control of these wastes are discussed. The revegetation of mined lands using waste water sludge is also considered. (Contains a minimum of 138 citations and includes a subject term index and title list.)

  7. Agroforestry: Conifers. (Latest citations from the Cab Abstracts database). NewSearch

    SciTech Connect (OSTI)

    Not Available

    1994-10-01

    The bibliography contains citations concerning the use of lands forested with conifers for crop and livestock production. Citations cover the grazing of livestock and the production of crops, including tomatoes, soybeans, lespedeza, wheat, rape, taro, cotton, cabbages, ginger, watermelons, and strawberries. Livestock discussed include cattle, sheep, geese, and horses. Economic analyses and economic models are presented. (Contains a minimum of 147 citations and includes a subject term index and title list.)

  8. Bioremediation with white rot fungus. (Latest citations from Pollution Abstracts database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-10-01

    The bibliography contains citations concerning the use of white rot fungus to degrade a variety of hazardous materials. The citations examine the application of the fungus to the remediation of petroleum hydrocarbons, polychlorinated biphenyls, 2,4,6-trinitrotoluene (TNT), pentachlorophenol, herbicides, insecticides, and other environmentally persistent organic compounds. The results of laboratory and field studies are presented. The use of white rot fungus in biological pulping and delignification is also discussed. (Contains a minimum of 50 citations and includes a subject term index and title list.)

  9. Pumped storage for hydroelectric power. (Latest citations from Fluidex (Fluid Engineering Abstracts) database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-10-01

    The bibliography contains citations concerning the design, development, construction, and characteristics of surface and underground pumped storage for hydroelectric power. Pumped storage projects and facilities worldwide are referenced. There is some consideration of research and experimental results of pumped storage studies, as well as modeling. (Contains a minimum of 198 citations and includes a subject term index and title list.)

  10. Microsoft Word - RM 1-3 Environmental Assessment_PNNL-Abstract...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    permitting process has been assigned a cost derived from existing and proposed tidal, wave, and riverine MHK projects. Costs have been developed at the pilot scale, and...

  11. Microsoft Word - RM1_Tidal Turbine_UW Tidal Resource-Abstract...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Reference Model 1 - Tidal Energy: Resource Dr. Brian Polagye Northwest National Marine Renewable Energy Center University of Washington, Seattle, WA Introduction Reference Model...

  12. Wastewater treatment: Chemical industry. (Latest citations from Pollution abstracts). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-12-01

    The bibliography contains citations concerning wastewater treatment of industrial pollutants. The use and effectiveness of biological treatments and carbon additives are examined. References also discuss problems and recommendations for the removal of mercury and its compounds, fertilizers, and pesticides from polluted waste water. (Contains 250 citations and includes a subject term index and title list.)

  13. Wastewater treatment by sand filtration. (Latest citations from the Selected Water Resources Abstracts database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-09-01

    The bibliography contains citations concerning the use of sand filtration in the treatment of wastewaters. Treatment systems for both domestic and industrial effluents are discussed. Designs, processes, and performance evaluations of sand filters, columns, and mounds used as primary filtering mechanisms are included. (Contains a minimum of 244 citations and includes a subject term index and title list.)

  14. Polyelectrolytes: Wastewater and sewage treatment. (Latest citations from the Selected Water Resources Abstracts database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-02-01

    The bibliography contains citations concerning polyelectrolytes in wastewater and water treatment. Topics include flocculation, coagulation, separation techniques, pollutant identification, water pollution sources, and sludge dehydration. Hospital wastewater processing, methods of synthesizing polyelectrolyte complexes, and performance evaluations of polyelectrolytes are also discussed. (Contains 250 citations and includes a subject term index and title list.)

  15. Denitrification in wastewater treatment (excluding biological methods). (Latest citations from pollution abstracts). Published Search

    SciTech Connect (OSTI)

    1995-12-01

    The bibliography contains citations concerning chemical and physical methods for the removal of nitrogen-containing compounds from wastewater. Filtration, absorption, air-lift loop reactors, and fluidized bed processes are among the techniques presented. The citations cover process design, evaluation, economic analysis, and applications in the treatment of industrial and municipal wastewaters. Special attention is given to the use of computers for process automation and mathematical simulation of denitrification processes. Biological denitrification methods are referenced in a related bibliography.(Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  16. Denitrification in wastewater treatment (excluding biological methods). (Latest citations from Pollution abstracts). NewSearch

    SciTech Connect (OSTI)

    Not Available

    1994-10-01

    The bibliography contains citations concerning chemical and physical methods for the removal of nitrogen-containing compounds from wastewater. Filtration, absorption, air-lift loop reactors, and fluidized bed processes are among the techniques presented. The citations cover process design, evaluation, economic analysis, and applications in the treatment of industrial and municipal wastewaters. Special attention is given to the use of computers for process automation and mathematical simulation of denitrification processes. Biological denitrification methods are referenced in a related bibliography. (Contains a minimum of 130 citations and includes a subject term index and title list.)

  17. Wastewater treatment: Chemical industry. (Latest citations from Pollution abstracts). Published Search

    SciTech Connect (OSTI)

    Not Available

    1994-12-01

    The bibliography contains citations concerning wastewater treatment of industrial pollutants. The use and effectiveness of biological treatments and carbon additives are examined. References also discuss problems and recommendations for the removal of mercury and its compounds, fertilizers, and pesticides from polluted waste water. (Contains 250 citations and includes a subject term index and title list.)

  18. Polyelectrolytes: Wastewater and sewage treatment. (Latest citations from the Selected Water Resources Abstracts database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1994-04-01

    The bibliography contains citations concerning polyelectrolytes in wastewater and water treatment. Topics include flocculation, coagulation, separation techniques, pollutant identification, water pollution sources, and sludge dehydration. Hospital wastewater processing, methods of synthesizing polyelectrolyte complexes, and performance evaluations of polyelectrolytes are also discussed. (Contains 250 citations and includes a subject term index and title list.)

  19. Biological denitrification in wastewater treatment. (Latest citations from pollution abstracts). Published Search

    SciTech Connect (OSTI)

    1995-11-01

    The bibliography contains citations concerning the biological removal of nitrogen-containing compounds from wastewater. Activated sludge processes for industrial and municipal wastewater treatment are discussed. The citations examine processes to identify the most effective microorganisms for biological degradation and the factors which can accelerate or inhibit decomposition. The results of pilot-plant studies, and the experiences derived from full-scale industrial installations are presented.(Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  20. Automation for industrial wastewater treatment. (Latest citations from Pollution abstracts). Published Search

    SciTech Connect (OSTI)

    1996-02-01

    The bibliography contains citations concerning automated monitoring and purification of wastewater. The design and development of new automated systems and improvements to existing applications are described. The citations examine the benefits of automation, including more efficient use of chemicals, continuous operation, and early warning of equipment failure. Disadvantages are addressed, as well, including increased cost of energy, the need for sophisticated hardware and software, and inability to maintain operation during electric power failure. Case histories of operating automated industrial and municipal systems are presented. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  1. Wastewater treatment: Chemical industry. (Latest citations from Pollution abstracts). Published Search

    SciTech Connect (OSTI)

    1995-11-01

    The bibliography contains citations concerning wastewater treatment of industrial pollutants. The use and effectiveness of biological treatments and carbon additives are examined. References also discuss problems and recommendations for the removal of mercury and its compounds, fertilizers, and pesticides from polluted waste water. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  2. Wastewater treatment by sand filtration. (Latest citations from the Selected Water Resources Abstracts database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1994-04-01

    The bibliography contains citations concerning the use of sand filtration in the treatment of wastewaters. Systems and filtration processes for municipal, domestic, and industrial wastewater treatment are discussed. Designs and performance evaluations of sand filters are included. (Contains a minimum of 247 citations and includes a subject term index and title list.)

  3. Quantitative x-ray imager (abstract) (Journal Article) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    Flatfielding of the photocathode across the MCP was done with the Trident main laser with 150 J on a gold disk with a 1 ns. Spatial resolution was determined to be <5 mum by ...

  4. May 3 Abstract for Colloquium/Public Lecture on May 11 at Jefferson Lab

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    titled: Accelerator Driven System (ADS) in Support of Sustainable Nuclear Power Program in India. The lecture will be presented by Srikumar Banerjee, Chairman of the Atomic Energy Com | Jefferson Lab http://www.barc.ernet.in/dirbarc.html Submitted: Wednesday, March 3, 2010

  5. Polisher (conflicting versions 2.0.8 on IM Form, 1.0 on abstract)

    Energy Science and Technology Software Center (OSTI)

    2008-09-18

    Polisher is a software package designed to facilitate the error correction of an assembled genome using Illumia read data. The software addresses substandard regions by automatically correcting consensus errors and/or suggesting primer walking reactions to improve the quality of the bases. This is done by performing the following:...........

  6. Regulatory and Technical Reports (Abstract Index Journal). Annual compilation for 1995, Volume 20, No. 4

    SciTech Connect (OSTI)

    Sheehan, M.

    1995-04-01

    The Nuclear Regulatory Commission`s annual summary of licensed nuclear power reactor data is based primarily on the report of operating data submitted by licensees for each unit for the month of December because that report contains data for the month of December, the year to date (in this case calendar year 1994) and cumulative data, usually from the date of commercial operation. The data is not independently verified, but various computer checks are made. The report is divided into two sections. The first contains summary highlights and the second contains data on each individual unit in commercial operation Section 1 capacity and availability factors are simple arithmetic averages. Section 2 items in the cumulative column are generally as reported by the licensee and notes as to the use of weighted averages and starting dates other than commercial operation are provided.

  7. Abstract Tracking System | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Summaries for DOE laboratory Field Work Proposals for DMSE are not contained in the ATS, but they are available from the Research Program web page of the DMSE web site. Last ...

  8. Medical and pharmaceutical wastes. (Latest citations from Pollution abstracts). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-02-01

    The bibliography contains citations concerning medical and pharmaceutical waste regulation and disposal. The citations examine landfills and combustion as disposal options, and consider the economic viability of each. Also covered are the effects of pollutant effluents such as mercury, dioxins, infectious pathogens, residual ash, radioisotopes, and particulate air pollution. (Contains a minimum of 166 citations and includes a subject term index and title list.)

  9. Summary and abstracts: Applied Research Units and Projects 1996 UCETF Program

    SciTech Connect (OSTI)

    1999-05-21

    The Urban Consortium (UC), created by PTI, is a network of jurisdictions with populations of over 250,000. The UC provides a platform for research and enterprise through its Energy, Environmental, Transportation, and Telecommunications and Information Task Forces. The UC provides a unique creative forum where elected and appointed officials and technical managers identify, test, and validate practical ways to improve the provision of public services and, where possible, generate new revenue opportunities. Public Technology, Inc., is the non-profit technology organization of the National League of Cities, the National Association of Counties, and the International City/County Management Association. PTI creates and advances technology-based products, services, and enterprises in cities and counties nationwide. Staffed by PTI, the UC addresses the critical needs of local governments through its Task Forces. The Urban Consortium Energy Task Force (UCETF) program has, since its inception, acted as a laboratory to develop, test solutions and share the resulting products or management approaches with the wider audience of local governments. It has addressed the overlap between energy and environment and economic development policy issues, and, is the nation's most extensive cooperative local government program to improve energy management and decision-making through applied research and technology cooperation. Proposals to meet the specific objectives of the UCETF annual R and D program are solicited from major urban jurisdictions. Projects based on these proposals are then selected by the UCETF for direct conduct and management by staff of city and county governments. Projects selected for each year's program are organized in thematic units to assure effective management and ongoing peer-to-peer experience exchange, with results documented at the end of each program year.

  10. Hanford to Host ISMS Safety Workshop in Kennewick: Abstracts Due in June for September Event

    Broader source: Energy.gov [DOE]

    RICHLAND, WASH. The U.S. Department of Energy (DOE) at Hanford will hold its annual DOE Integrated Safety Management (ISM) Champions Workshop on September 12-15, 2011, at the Three Rivers Convention Center in Kennewick, Wash.

  11. Carbon Calculator for Land Use Change from Biofuels Production (CCLUB). Users' Manual and Technical Documentation

    SciTech Connect (OSTI)

    Dunn, Jennifer B.; Qin, Zhangcai; Mueller, Steffen; Kwon, Ho-young; Wander, Michelle M.; Wang, Michael

    2014-09-01

    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 September 30, 2014 which includes corn and three cellulosic feedstocks: corn stover, Miscanthus, and switchgrass.

  12. Physics Experiments and Abstract Harmonic Analysis: A Generalized Peano Kernel Theorem for Estimating Errors in Laser Interferometry

    SciTech Connect (OSTI)

    Luttman, A.

    2012-10-08

    This slide-show discusses the use of the Local Polynomial Approximation (LPA) to smooth signals from photonic Doppler velocimetry (PDV) applying a generalized Peano kernel theorem.

  13. Los Alamos Life Sciences Division's biomedical and environmental research programs. Progress report, January-December 1981. [Leading abstract

    SciTech Connect (OSTI)

    Holland, L.M.; Stafford, C.G.

    1982-10-01

    This report summarizes research and development activities of the Los Alamos Life Sciences Division's Biomedical and Environmental Research program for the calendar year 1981. Individual reports describing the current status of projects have been entered individually into the data base.

  14. 16th Workshop on Crystalline Silicon Solar Cells and Modules: Materials and Processes; Program, Extended Abstracts, and Papers

    SciTech Connect (OSTI)

    Sopori, B. L.

    2006-08-01

    The National Center for Photovoltaics sponsored the 16th Workshop on Crystalline Silicon Solar Cells and Modules: Materials and Processes held August 6-9, 2006 in Denver, Colorado. The workshop addressed the fundamental properties of PV-Si, new solar cell designs, and advanced solar cell processing techniques. It provided a forum for an informal exchange of technical and scientific information between international researchers in the photovoltaic and relevant non-photovoltaic fields. The Workshop Theme was: "Getting more (Watts) for Less ($i)". A combination of oral presentations by invited speakers, poster sessions, and discussion sessions reviewed recent advances in crystal growth, new cell structures, new processes and process characterization techniques, and cell fabrication approaches suitable for future manufacturing demands. The special sessions included: Feedstock Issues: Si Refining and Purification; Metal-impurity Engineering; Thin Film Si; and Diagnostic Techniques.

  15. 15th Workshop on Crystalline Silicon Solar Cells and Modules: Materials and Processes; Extended Abstracts and Papers

    SciTech Connect (OSTI)

    Sopori, B. L.

    2005-11-01

    The National Center for Photovoltaics sponsored the 15th Workshop on Crystalline Silicon Solar Cells & Modules: Materials and Processes, held in Vail, CO, August 7-10, 2005. This meeting provided a forum for an informal exchange of technical and scientific information between international researchers in the photovoltaic and relevant non-photovoltaic fields. The workshop addressed the fundamental properties of PV silicon, new solar cell designs, and advanced solar cell processing techniques. A combination of oral presentations by invited speakers, poster sessions, and discussion sessions reviewed recent advances in crystal growth, new cell designs, new processes and process characterization techniques, and cell fabrication approaches suitable for future manufacturing demands. The theme of this year's meeting was 'Providing the Scientific Basis for Industrial Success.' Specific sessions during the workshop included: Advances in crystal growth and material issues; Impurities and defects in Si; Advanced processing; High-efficiency Si solar cells; Thin Si solar cells; and Cell design for efficiency and reliability module operation. The topic for the Rump Session was ''Si Feedstock: The Show Stopper'' and featured a panel discussion by representatives from various PV companies.

  16. A full-dimensional quantum dynamics study of the mode specificity in the H + HOD abstraction reaction

    SciTech Connect (OSTI)

    Fu, Bina Zhang, Dong H.

    2015-02-14

    We employ the initial state-selected time-dependent wave packet approach to an atom-triatom reaction to study the H + HOD → OH + HD/OD + H{sub 2} reaction without the centrifugal sudden approximation, based on an accurate potential energy surface which was recently developed by neural network fitting to high level ab initio energy points. The total reaction probabilities and integral cross sections, which are the exact coupled-channel results, are calculated for the HOD reactant initially in the ground and several vibrationally excited states, including the bending excited state, OD stretching excited states, OH stretching excited states, and combined excitations of them. The reactivity enhancements from different initial states of HOD are presented, which feature strong bond-selective effects of the reaction dynamics. The current results for the product branching ratios, reactivity enhancements, and relative cross sections are largely improved over the previous calculations, in quantitatively good agreement with experiment. The thermal rate constant for the title reaction and the contributions from individual vibrational states of HOD are also obtained.

  17. Wastewater treatment: Dye and pigment industry. (Latest citations from the Selected Water Resources Abstracts database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-03-01

    The bibliography contains citations concerning treatment of wastewater containing dyes and pigments. The citations discuss the of dyes and pigments in wastewater treatment systems, biodegradation of dyes, absorption and adsorption processes to remove dyes from wastewater, environmental effects from the disposal of dye-containing wastes, and methods of analysis for dyes in waste streams. Treatment methods such as ozonation, reverse osmosis, activated charcoal filtration, activated sludge, electrochemical treatments, thermal treatments, simple filtration, and absorption media are included. (Contains a minimum of 112 citations and includes a subject term index and title list.)

  18. Humic acids: Characterization and interactions in natural and wastewater systems. (Latest citations from Pollution abstracts). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-11-01

    The bibliography contains citations concerning the absorptive and complexation properties of humic and fulvic acids. Characterization and the occurrence of these acids in wastewater systems and natural systems are studied. The interaction of humic substances with metallic pollutants and chlorinated hydrocarbons, and removal of humic acids by precipitation are among the topics discussed. Wastewater treatment processes are discussed in separate bibliographies. (Contains 250 citations and includes a subject term index and title list.)

  19. Water treatment facilities (excluding wastewater facilities). (Latest citations from the Selected Water Resources Abstracts database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-07-01

    The bibliography contains citations concerning the design, construction, costs, and operation of water treatment facilities. Facilities covered include those that provide drinking water, domestic water, and water for industrial use. Types of water treatment covered include reverse osmosis, chlorination, filtration, and ozonization. Waste water treatment facilities are excluded from this bibliography. (Contains 250 citations and includes a subject term index and title list.)

  20. Wastewater treatment: Ozonation processes and equipment. (Latest citations from the Selected Water Resources Abstracts database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-12-01

    The bibliography contains citations concerning the use of ozone for wastewater disinfection. The citations cover system descriptions and evaluations, comparisons with the chlorination disinfection process, reaction kinetics, and the combination of ozonation with other wastewater treatment methods. The treatment of organic and inorganic compounds in wastewater and municipal water supplies is also discussed. (Contains 250 citations and includes a subject term index and title list.)

  1. Humic acids: Characterization and interactions in natural and wastewater systems. (Latest citations from Pollution abstracts). Published Search

    SciTech Connect (OSTI)

    1995-11-01

    The bibliography contains citations concerning the absorptive and complexation properties of humic and fulvic acids. Characterization and the occurrence of these acids in wastewater systems and natural systems are studied. The interaction of humic substances with metallic pollutants and chlorinated hydrocarbons, and removal of humic acids by precipitation are among the topics discussed. Wastewater treatment processes are discussed in separate bibliographies. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  2. Wastewater treatment: Ozonation processes and equipment. (Latest citations from the Selected Water Resources Abstracts database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-03-01

    The bibliography contains citations concerning the use of ozone for wastewater disinfection. The citations cover system descriptions and evaluations, comparisons with the chlorination disinfection process, reaction kinetics, and the combination of ozonation with other wastewater treatment methods. The treatment of organic and inorganic compounds in wastewater and municipal water supplies is also discussed. (Contains 250 citations and includes a subject term index and title list.)

  3. Volatile organic compounds (VOCs): Remediation for wastewater. (Latest citations from the Selected Water Resources Abstracts database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-11-01

    The bibliography contains citations concerning wastewater contamination by volatile organic materials and the technology for reclamation. Remediation techniques discussed include use of activated carbon, activated sludge, oxidation, scrubbing, vapor stripping, biodegradation, and other degradative treatments. Articles include remediation of soils contaminated by volatile wastes. The citations examine a variety of compounds, including aromatic hydrocarbons, petroleum wastes, chlorinated organics, and other volatile materials. (Contains a minimum of 215 citations and includes a subject term index and title list.)

  4. Humic acids: Characterization and interactions in natural and wastewater systems. (Latest citations from Pollution Abstracts database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-09-01

    The bibliography contains citations concerning the absorptive and complexation properties of humic and fulvic acids. Characterization and the occurrence of these acids in wastewater systems and natural systems are studied. The interaction of humic substances with metallic pollutants and chlorinated hydrocarbons, and removal of humic acids by precipitation are among the topics discussed. Wastewater treatment processes are discussed in separate bibliographies. (Contains 250 citations and includes a subject term index and title list.)

  5. Wastewater and water treatment: Anion exchange. (Latest citations from the Selected Water Resources Abstracts database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1994-01-01

    The bibliography contains citations concerning the theory and methods of anion exchange in the treatment of potable water and wastewaters. Citations discuss anion exchange resins and membranes, desalination techniques, and process evaluations. Methods for anion analysis using chromatographic techniques are also considered. (Contains a minimum of 74 citations and includes a subject term index and title list.)

  6. Wastewater and water treatment: Anion exchange. (Latest citations from the Selected Water Resources Abstracts database). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-09-01

    The bibliography contains citations concerning the theory and methods of anion exchange in the treatment of potable water and wastewaters. Citations discuss anion exchange resins and membranes, desalination techniques, and process evaluations. Methods for anion analysis using chromatographic techniques are also considered. (Contains a minimum of 74 citations and includes a subject term index and title list.)

  7. U.S. Department of Energy (DOE)--Surface Biogeochemical Research (SBR) 6th Annual PI Meeting: Abstracts

    SciTech Connect (OSTI)

    Hazen Ed., T.C.

    2011-04-11

    On behalf of the Subsurface Biogeochemical Research (SBR) program managers in the Climate and Environmental Sciences Division (CESD), Office of Biological and Environmental Research (BER), welcome to the 2011 SBR Principal Investigators meeting. Thank you in advance for your attendance and your presentations at this year's meeting. As the events in Japan continue to unfold, we are all reminded that the research we perform on radionuclide behavior in the environment has implications beyond legacy waste cleanup and in fact has its place in the discussion on the expanded use of nuclear power. As in the past, there are three broad objectives to the Principal Investigators meeting: (1) to provide opportunities to share research results and promote interactions among the SBR scientists and other invited guests; (2) to evaluate the progress of each project within the program; and (3) to showcase the scientific expertise and research progress over the past year to senior managers within the DOE Office of Science, the technology offices within DOE, and other invited attendees from other Federal Agencies. This past year has seen a few significant changes within BER and within the SBR program. In November, our Associate Director for BER, Anna Palmisano, retired from Federal service. Just this month, Dr. Sharlene Weatherwax (Division Director for Biological Systems Sciences) has been named as the new Associate Director for BER. In August, BER welcomed Dr. Gary Geernaert as the new Division Director for CESD. Gary joins the division from Los Alamos National Laboratory with a background in atmospheric science. Within the SBR program, a new Strategic Plan was completed last June (currently posted on the SBR and the Office of Science website). The new strategic plan is intended to foster integration within the Environmental Systems Science portion of the BER budget that includes both SBR and Terrestrial Ecosystem Sciences (TES). Both these programs share a goal of advancing a predictive understanding of environmental processes and utilizing iterative, multidisciplinary approaches to understand complex environmental systems of relevance to DOE. CESD in general is undergoing continued discussions on integration among its programs in an effort to develop a new strategic plan for the division. This effort also includes identifying opportunities for integration with BER's Biological Systems Science Division (BSSD). The program this year includes three poster presentation sessions, six plenary sessions, and three breakout sessions. The plenary session on Tuesday morning will feature introductory presentations by BER program staff and three keynote addresses from Dr. Ken Bencala (USGS), Dr. Michael (Mick) Follows (MIT) and Dr. Sue Brantley (PSU) that will lead into three breakout sessions Tuesday afternoon. The breakout sessions are intended to highlight key developments in SBR research and foster a dialog among session participants on scientific paths forward in each particular area. The SBR program managers are asking for input from the SBR community at these sessions to help guide future efforts and/or identify areas of integration within BER programs. On Wednesday, plenary sessions will continue in the morning, followed by an early afternoon poster session. After an extended break for lunch, plenary sessions will continue in the afternoon, followed by an evening poster session. Thursday's plenary session will focus on selected highlights of research efforts at the IFRC sites and on a new potential TES field effort in the Arctic. This new field site is an obvious point of integration between the SBR and TES programs.

  8. Effluent treatment in the paint and coating industry. (Latest citations from World Surface Coatings abstracts). Published Search

    SciTech Connect (OSTI)

    1996-02-01

    The bibliography contains citations concerning the analysis and treatment of effluents from the coating industry. Filters used for solvent adsorption and recovery, activated carbon adsorption of paint fumes, hydrogen peroxide treatment of wastes, effluent heat recovery, and biological treatments are discussed. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

  9. Turning Grass into Gas for Less

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    like this switchgrass could be turned into biofuels, rather than using corn or other food crops. Pull up to the pump these days and chances are your gas will be laced with...

  10. Opportunities for Energy Crop Production Based on Subfield Scale...

    Office of Scientific and Technical Information (OSTI)

    where corn (Zea mays L.) grain is modeled to operate at a net economic loss. The results of this analysis show that switchgrass integration has the potential to increase ...

  11. Genomic Analysis of Natural Variation for Seed and Plant Size in Maize ( JGI Seventh Annual User Meeting 2012: Genomics of Energy and Environment)

    SciTech Connect (OSTI)

    Kaeppler, Shawn [University of Wisconsin, Madison] [University of Wisconsin, Madison

    2012-03-21

    Shawn Kaeppler from the University of Wisconsin-Madison on "Genomic Analysis of Biofuel Traits in Maize and Switchgrass" at the 7th Annual Genomics of Energy & Environment Meeting on March 21, 2012 in Walnut Creek, Calif

  12. Genomic Analysis of Natural Variation for Seed and Plant Size in Maize ( JGI Seventh Annual User Meeting 2012: Genomics of Energy and Environment)

    ScienceCinema (OSTI)

    Kaeppler, Shawn [University of Wisconsin, Madison

    2013-01-15

    Shawn Kaeppler from the University of Wisconsin-Madison on "Genomic Analysis of Biofuel Traits in Maize and Switchgrass" at the 7th Annual Genomics of Energy & Environment Meeting on March 21, 2012 in Walnut Creek, Calif

  13. A new recipe for biofuel: Genetic diversity can lead to more...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... However, a team of national laboratory and university researchers led by the U.S. ... A switchgrass plot grown as part of an Argonne National Laboratory-led study to test how ...

  14. CX-011396: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Research and Technology Development for Genetic Improvement of Switchgrass CX(s) Applied: B3.6 Date: 12/19/2013 Location(s): Rhode Island Offices(s): Golden Field Office

  15. CX-004378: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Genetic Improvement of SwitchgrassCX(s) Applied: B3.6Date: 11/02/2010Location(s): Kingston, Rhode IslandOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  16. Advanced Biofuels: How Scientists are Engineering Bacteria to Help Drive

    Energy Savers [EERE]

    America | Department of Energy Advanced Biofuels: How Scientists are Engineering Bacteria to Help Drive America Advanced Biofuels: How Scientists are Engineering Bacteria to Help Drive America December 6, 2011 - 2:12pm Addthis Strains of E. coli bacteria were engineered to digest switchgrass biomass and synthesize its sugars into gasoline, diesel and jet fuel. | Image courtesy of Berkeley Lab. Strains of E. coli bacteria were engineered to digest switchgrass biomass and synthesize its sugars

  17. Energy Department Helping Lower Biofuel Costs for the Nation | Department

    Office of Environmental Management (EM)

    of Energy Helping Lower Biofuel Costs for the Nation Energy Department Helping Lower Biofuel Costs for the Nation January 29, 2015 - 9:31am Addthis Biofuels are produced in a biorefinery (bottom left) from feedstocks such as corn stover (bottom right) and switchgrass (top left). Biofuels are produced in a biorefinery (bottom left) from feedstocks such as corn stover (bottom right) and switchgrass (top left). Alicia Moulton Communications Specialist, Bioenergy Technologies Office U.S.

  18. Evolution of Structure-Reactivity Correlations for the Hydrogen Abstraction Reaction by Hydroxyl Radical and Comparison with that by Chlorine Atom

    SciTech Connect (OSTI)

    Poutsma, Marvin L

    2013-01-01

    A structure-reactivity correlation for the reaction (HO + HCR3 HOH + CR3 ) has been formulated: log k298(per H) = 0.000630 rH2 0.151 rH 1.056 F 1.053 R 21.26 (r2 = 0.885; n = 70; mean unsigned deviation = 0.29 log units), where rH is the reaction enthalpy and F and R represent the dissection of Hammett s para constant into its field/inductive and resonance effects, and compared for the analogous case for Cl (ref 1). Although more exothermic, the dependence of HO on rH is somewhat greater than Cl . However the dependence on F and R is much less, suggestive of less charge separation in the transition state for the less electronegative HO . The range of k(OH) is significantly less than that of Cl , i.e., it is less dependent on substrate structure. Yet a cross-over exists such that k(Cl) > k(HO) predominates for more reactive cases whereas k(Cl) < k(OH) characterizes the less reactive. The Arrhenius parameters reveal that this cross-over results from a change in {E(Cl) E(OH)} from negative to positive. In contrast, whereas the A factors for both increase significantly as reactivity increases, {A(Cl) / A(OH)} always exceeds unity.

  19. Waste Treatment And Immobilization Plant U. S. Department Of Energy Office Of River Protection Submerged Bed Scrubber Condensate Disposition Project - Abstract # 13460

    SciTech Connect (OSTI)

    Yanochko, Ronald M; Corcoran, Connie

    2012-11-15

    The Hanford Waste Treatment and Immobilization Plant (WTP) will generate an off-gas treatment system secondary liquid waste stream [submerged bed scrubber (SBS) condensate], which is currently planned for recycle back to the WTP Low Activity Waste (LAW) melter. This SBS condensate waste stream is high in Tc-99, which is not efficiently captured in the vitrified glass matrix. A pre-conceptual engineering study was prepared in fiscal year 2012 to evaluate alternate flow paths for melter off-gas secondary liquid waste generated by the WTP LAW facility. This study evaluated alternatives for direct off-site disposal of this SBS without pre-treatment, which mitigates potential issues associated with recycling.

  20. Abstract: Development and Deployment of a Short Rotation Woody Crops Harvesting System Based on a Case New Holland Forage Harvester and SRC Woody Crop Header

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Deployment of a Short Rotation Woody Crops Harvesting System Based on a Case New Holland Forage Harvester and SRC Woody Crop Header Despite the projected increase in demand for woody biomass from short rotation woody crops (SRWC) and the wide array of benefits associated with their production and use, the expansion and rapid deployment of these systems has been restricted by their high cost of production and in some situations a lack of market acceptance because of poor quality chips from first

  1. RHENIUM SOLUBILITY IN BOROSILICATE NUCLEAR WASTE GLASS IMPLICATIONS FOR THE PROCESSING AND IMMOBILIZATION OF TECHNETIUM-99 (AND SUPPORTING INFORMATION WITH GRAPHICAL ABSTRACT)

    SciTech Connect (OSTI)

    AA KRUGER; A GOEL; CP RODRIGUEZ; JS MCCLOY; MJ SCHWEIGER; WW LUKENS; JR, BJ RILEY; D KIM; M LIEZERS; P HRMA

    2012-08-13

    The immobilization of 99Tc in a suitable host matrix has proved a challenging task for researchers in the nuclear waste community around the world. At the Hanford site in Washington State in the U.S., the total amount of 99Tc in low-activity waste (LAW) is {approx} 1,300 kg and the current strategy is to immobilize the 99Tc in borosilicate glass with vitrification. In this context, the present article reports on the solubility and retention of rhenium, a nonradioactive surrogate for 99Tc, in a LAW sodium borosilicate glass. Due to the radioactive nature of technetium, rhenium was chosen as a simulant because of previously established similarities in ionic radii and other chemical aspects. The glasses containing target Re concentrations varying from 0 to10,000 ppm by mass were synthesized in vacuum-sealed quartz ampoules to minimize the loss of Re by volatilization during melting at 1000 DC. The rhenium was found to be present predominantly as Re7 + in all the glasses as observed by X-ray absorption near-edge structure (XANES). The solubility of Re in borosilicate glasses was determined to be {approx}3,000 ppm (by mass) using inductively coupled plasma-optical emission spectroscopy (ICP-OES). At higher rhenium concentrations, some additional material was retained in the glasses in the form of alkali perrhenate crystalline inclusions detected by X-ray diffraction (XRD) and laser ablation-ICP mass spectrometry (LA-ICP-MS). Assuming justifiably substantial similarities between Re7 + and Tc 7+ behavior in this glass system, these results implied that the processing and immobilization of 99Tc from radioactive wastes should not be limited by the solubility of 99Tc in borosilicate LAW glasses.

  2. "Research to Improve the Efficacy of Captive Broodstock Programs and Advance Hatchery Reform Throughout the Columbia River Basin." [from the Abstract], 2007-2008 Annual Progress Report.

    SciTech Connect (OSTI)

    Berejikian, Barry A.

    2009-04-08

    This project was developed to conduct research to improve the efficacy of captive broodstock programs and advance hatchery reform throughout the Columbia river basin. The project has three objectives: (1) maintain adaptive life history characteristics in Chinook salmon, (2) improve imprinting in juvenile sockeye salmon, and (3) match wild phenotypes in Chinook and sockeye salmon reared in hatcheries. A summary of the results are as follows: Objective 1: Adult and jack Chinook salmon males were stocked into four replicate spawning channels at a constant density (N = 16 per breeding group), but different ratios, and were left to spawn naturally with a fixed number of females (N = 6 per breeding group). Adult males obtained primary access to females and were first to enter the nest at the time of spawning. Jack male spawning occurred primarily by establishing satellite positions downstream of the courting pair, and 'sneaking' into the nest at the time of spawning. Male dominance hierarchies were fairly stable and strongly correlated with the order of nest entry at the time of spawning. Spawning participation by jack and adult males is consistent with a negative frequency dependent selection model, which means that selection during spawning favors the rarer life history form. Results of DNA parentage assignments will be analyzed to estimate adult-to-fry fitness of each male. Objective 2: To determine the critical period(s) for imprinting for sockeye salmon, juvenile salmon were exposed to known odorants at key developmental stages. Molecular assessments of imprinting-induced changes in odorant receptor gene expression indicated that regulation of odorant expression is influenced by developmental status and odor exposure history. The results suggest that sockeye salmon are capable of imprinting to homing cues during the developmental periods that correspond to several of current release strategies employed as part of the Captive Broodstock program (specifically, planting eyed eggs, fall and smolt releases into the lake) appear to be appropriate for successful homing of sockeye in Redfish Lake. Also, our findings indicated that sockeye salmon were capable of olfactory imprinting at multiple life stages and over varying exposure durations. Fish exposed to odors just prior to smolting showed the strongest attraction to the imprinting odor arginine and this period corresponds to the period of highest plasma thyroxine levels and increased BAAR receptor mRNA in juveniles. Objective 3: Spring Chinook salmon were exposed to three different photoperiods and three feed rations at the button-up stage of development. Both photoperiod at emergence and ration post-ponding affected the number of males maturing at age one. Nearly 70% of the males in the early emergence and satiation fed group matured after the first year of rearing, while none of the fish reared on late emergence photoperiod (equivalent to emergence on May 1) matured during this time irrespective of ration treatment. Within the early emergence groups, reducing growth using ration (low or high) appeared to reduce the number of males maturing at age one from 70% to 40-50%. Maturation rates of fish that emerged in a photoperiod equivalent to mid-February (middle emergence) ranged from 10-25%. Together these data indicate that the seasonal timing of fry emergence and growth after ponding can alter life history patterns in spring Chinook salmon. The results imply that hatchery rearing practices that alter seasonal timing of fry emergence can have drastic effects on life history patterns in juvenile Chinook salmon. All three objectives are on-going and will result in recommendations (at the end of the FY 2009 performance period) to advance hatchery reforms in conventional and captive broodstock programs.

  3. "Research to Improve the Efficacy of Captive Broodstock Programs and Advance Hatchery Reform Throughout the Columbia River Basin." [from the Abstract], 2008-2009 Progress Report.

    SciTech Connect (OSTI)

    Berejikian, Barry A.

    2009-08-18

    This project was developed to conduct research to improve the efficacy of captive broodstock programs and advance hatchery reform throughout the Columbia River Basin. The project has three objectives: (1) maintain adaptive life history characteristics in Chinook salmon, (2) improve imprinting in juvenile sockeye salmon, and (3) match wild phenotypes in Chinook and sockeye salmon reared in hatcheries. A summary of the results are as follows: Objective 1: The ratio of jack to adult male Chinook salmon were varied in experimental breeding populations to test the hypothesis that reproductive success of the two male phenotypes would vary with their relative frequency in the population. Adult Chinook salmon males nearly always obtained primary access to nesting females and were first to enter the nest at the time of spawning. Jack male spawning occurred primarily by establishing satellite positions downstream of the courting pair, and 'sneaking' into the nest at the time of spawning. Male dominance hierarchies were fairly stable and strongly correlated with the order of nest entry at the time of spawning. Observed participation in spawning events and adult-to-fry reproductive success of jack and adult males was consistent with a negative frequency-dependent selection model. Overall, jack males sired an average of 21% of the offspring produced across a range of jack male frequencies. Implications of these and additional findings on Chinook salmon hatchery broodstock management will be presented in the FY 2009 Annual Report. Objective 2: To determine the critical period(s) for imprinting for sockeye salmon, juvenile salmon were exposed to known odorants at key developmental stages. Molecular assessments of imprinting-induced changes in odorant receptor gene expression indicated that regulation of odorant expression is influenced by developmental status and odor exposure history. Expression levels of basic amino acid receptor (BAAR) mRNA in the olfactory epithelium increased dramatically during final maturation in both Stanley Basin and Okanogan River sockeye. These increases appeared to be independent of odor exposure history, rising significantly in both arginine-naive and arginine-exposed fish. However, sockeye exposed to arginine during smolting demonstrated a larger increase in BAAR mRNA than arginine-naive fish. These results are consistent with the hypothesis that odorant receptors sensitive to home stream waters may be upregulated at the time of the homing migration and may afford opportunities to exploit this system to experimentally characterize imprinting success and ultimately identify hatchery practices that will minimize straying of artificially produced salmonids. Additional analysis of Sockeye salmon imprinting and further implications of these findings will be presented in the FY 2009 Annual Report. Objective 3: Photoperiod at emergence and ration after ponding were varied in Yakima River spring Chinook salmon to test the hypothesis that seasonal timing of emergence and growth during early stages of development alter seasonal timing of smoltification and age of male maturation. Fish reared under conditions to advance fry emergence and accelerate growth had the greatest variation in seasonal timing of smolting (fall, spring and summer) and highest rates of early male maturation with most males maturing at age 1 (35-40%). In contrast, fish with delayed emergence and slow growth had the least variation in phenotypes with most fish smolting as yearlings in the spring and no age-1 male maturation. Growth (not emergence timing) altered rates of age-2 male maturation. Results of this study demonstrate that altering fry development, as is often done in hatcheries, can profoundly affect later life history transitions and the range of phenotypes within a spring Chinook salmon population. Additional work in the next funding period will determine if these rearing regimes affected other aspects of smolt quality, which may affect ultimate survival upon ocean entry.

  4. "The Success of Captive Broodstock Programs Depends on High In-Culture Survival, ..." [from the Abstract], 2006-2007 Progress Report.

    SciTech Connect (OSTI)

    Berejikian, Barry A.

    2009-04-08

    The success of captive broodstock programs depends on high in-culture survival, appropriate development of the reproductive system, and the behavior and survival of cultured salmon after release, either as adults or juveniles. Continuing captive broodstock research designed to improve technology is being conducted to cover all major life history stages of Pacific salmon. Accomplishments detailed in this report are listed below by major objective. Objective 1: This study documented that captively reared Chinook exhibited spawn timing similar to their founder anadromous population. An analysis of spawn timing data of captively reared Chinook salmon that had received different levels of antibiotic treatment did not suggest that antibiotic treatments during the freshwater or seawater phase of the life cycle affects final maturation timing. No effect of rearing density was found with respect to spawn timing or other reproductive behaviors. Objective 2: This study investigated the critical period(s) for imprinting for sockeye salmon by exposing juvenile salmon to known odorants at key developmental stages. Molecular assessments of imprinting-induced changes in odorant receptor gene expression indicated that regulation of odorant expression differs between coho and sockeye salmon. While temporal patterns differ between these species, exposure to arginine elicited increases in odorant receptor mRNA expression in sockeye salmon. Objective 3: This study: (i) identified the critical period when maturation is initiated in male spring Chinook salmon and when body growth affects onset of puberty, (ii) described changes in the reproductive endocrine system during onset of puberty and throughout spermatogenesis in male spring Chinook salmon, (iii) found that the rate of oocyte development prior to vitellogenesis is related to body growth in female spring Chinook, and (iv) demonstrated that growth regimes which reduce early (age 2) male maturation slow the rate of primary and early secondary oocyte growth, but do not alter number of oocytes at these stages of development. Objective 4 : This study, (1) determined that infected fish treated with oxytetracycline-medicated feed (as fry or as presmolts) had improved survival compared to nonmedicated fish, (2) determined that a single 14-day course of oral azithromycin at first feeding or at the start of smoltification is sufficient for significant azithromycin retention in internal tissues for at least a year, and (3) established that Renibacterium salmoninarum with an azithromycin-resistant phenotype can be isolated from Chinook salmon receiving macrolide antibiotic treatment. Objective 5: This study determined that for Chinook salmon rearing in similar, 'common environment' regimes in seawater, control fish have survived at a higher rate since seawater transfer than have experimentally inbred fish. However, in all groups, the variation among families in survival has been substantial, ranging from 0% to 100% over the entire year and from 0% to 40% since seawater transfer. The highly significant effect of variation among families within both stocks indicates that substantial genetic variation for size remains in these populations.

  5. An annotated bibliography of completed and in-progress behavioral research for the Office of Buildings and Community Systems. [About 1000 items, usually with abstracts

    SciTech Connect (OSTI)

    Weijo, R.O.; Roberson, B.F.; Eckert, R.; Anderson, M.R.

    1988-05-01

    This report provides an annotated bibliography of completed and in-progress consumer decision research useful for technology transfer and commercialization planning by the US Department of Energy's (DOE) Office of Buildings and Community Systems (OBCS). This report attempts to integrate the consumer research studies conducted across several public and private organizations over the last four to five years. Some of the sources of studies included in this annotated bibliography are DOE National Laboratories, public and private utilities, trade associations, states, and nonprofit organizations. This study divides the articles identified in this annotated bibliography into sections that are consistent with or similar to the system of organization used by OBCS.

  6. 11th Workshop on Crystalline Silicon Solar Cell Materials and Processes, Extended Abstracts and Papers, 19-22 August 2001, Estes Park, Colorado

    SciTech Connect (OSTI)

    Sopori, B.

    2001-08-16

    The 11th Workshop will provide a forum for an informal exchange of technical and scientific information between international researchers in the photovoltaic and non-photovoltaic fields. Discussions will include the various aspects of impurities and defects in silicon--their properties, the dynamics during device processing, and their application for developing low-cost processes for manufacturing high-efficiency silicon solar cells. Sessions and panel discussions will review impurities and defects in crystalline-silicon PV, advanced cell structures, new processes and process characterization techniques, and future manufacturing demands. The workshop will emphasize some of the promising new technologies in Si solar cell fabrication that can lower PV energy costs and meet the throughput demands of the future. The three-day workshop will consist of presentations by invited speakers, followed by discussion sessions. Topics to be discussed are: Si Mechanical properties and Wafer Handling, Advanced Topics in PV Fundamentals, Gettering and Passivation, Impurities and Defects, Advanced Emitters, Crystalline Silicon Growth, and Solar Cell Processing. The workshop will also include presentations by NREL subcontractors who will review the highlights of their research during the current subcontract period. In addition, there will be two poster sessions presenting the latest research and development results. Some presentations will address recent technologies in the microelectronics field that may have a direct bearing on PV.

  7. 10th Workshop on Crystalline Silicon Solar Cell Materials and Processes: Extended Abstracts and Papers from the Workshop, Copper Mountain Resort; August 14-16, 2000

    SciTech Connect (OSTI)

    Sopori, B.L.; Gee, J.; Kalejs, J.; Saitoh, R.; Stavola, M.; Swanson, D.; Tan, T.; Weber, E.; Werner, J.

    2000-08-11

    The 10th Workshop provided a forum for an informal exchange of technical and scientific information between international researchers in the photovoltaic and non-photovoltaic fields. Discussions included the various aspects of impurities and defects in silicon-their properties, the dynamics during device processing, and their application for developing low-cost processes for manufacturing high-efficiency silicon solar cells. Sessions and panel discussions also reviewed thin-film crystalline-silicon PV, advanced cell structures, new processes and process characterization techniques, and future manufacturing requirements to meet the ambitious expansion goals described in the recently released US PV Industry Roadmap. The Workshop also provided an excellent opportunity for researchers in private industry and at universities to recognize a mutual need for future collaborative research. The three-day workshop consisted of presentations by invited speakers, followed by discussion sessions. In addition, there was two poster sessions presenting the latest research and development results. The subjects discussed included: solar cell processing, light-induced degradation, gettering and passivation, crystalline silicon growth, thin-film silicon solar cells, and impurities and defects. Two special sessions featured at this workshop: advanced metallization and interconnections, and characterization methods.

  8. 12th Workshop on Crystalline Silicon Solar Cell Materials and Processes: Extended Abstracts and Papers, August 11-14, 2002, Breckenridge, Colorado

    SciTech Connect (OSTI)

    Sopori, B. L.

    2002-08-01

    The 12th Workshop will provide a forum for an informal exchange of technical and scientific information between international researchers in the photovoltaic and relevant non-photovoltaic fields. Discussions will include various aspects of impurities and defects in silicon-their properties, the dynamics during processing, and their application for developing low-cost processes for manufacturing high-efficiency silicon solar cells. The workshop will emphasize some of the promising new technologies in Si solar cell fabrication that can lower PV energy costs and meet the production demands of the future. It will also provide an excellent opportunity for researchers, in private industry and at universities, to prioritize mutual needs for future collaborative research. Sessions and panel discussions will review recent advances in crystal growth, new cell structures, new processes and process characterization techniques, and manufacturing approaches suitable for future manufacturing demands . Some presentations will address recent technologies in the microelectronics field that may have a direct bearing on PV. The three-day workshop will consist of presentations by invited speakers, followed by discussion sessions. In addition, there will be two poster sessions presenting the latest research and development results.

  9. Effluent treatment in the paint and coating industry. January 1980-May 1989 (Citations from World Surface Coatings Abstracts). Report for January 1980-May 1989

    SciTech Connect (OSTI)

    Not Available

    1989-06-01

    This bibliography contains citations concerning the analysis and treatment of effluents from the coating industry. Filters used for solvent absorption and recovery, activated-carbon absorption of paint fumes, hydrogen peroxide treatment of wastes, effluent heat recovery, and biological treatments are discussed. (This updated bibliography contains 101 citations, 18 of which are new entries to the previous edition.)

  10. Paint and coating industry: health and safety. January 1980-March 1989 (Citations from World Surface Coatings Abstracts). Report for January 1980-March 1989

    SciTech Connect (OSTI)

    Not Available

    1989-04-01

    This bibliography contains citations concerning health and safety hazards in the paint and coating industries. The exposure to toxic chemicals, and health hazards of working with powders, solvents, and paints such as hepatitis, dermatitis, respiratory ailments are discussed. Safety regulations are included. Fire and explosion hazards in the painting industry are described. Hazards outside the workplace involving the use of these products are briefly considered. (Contains 165 citations fully indexed and including a title list.)

  11. Effluent treatment in the paint and coating industry. January 1980-January 1990 (A Bibliography from World Surface Coatings Abstracts). Report for January 1980-January 1990

    SciTech Connect (OSTI)

    Not Available

    1990-04-01

    This bibliography contains citations concerning the analysis and treatment of effluents from the coating industry. Filters used for solvent absorption and recovery, activated carbon absorption of paint fumes, hydrogen peroxide treatment of wastes, effluent heat recovery, and biological treatments are discussed. (This updated bibliography contains 286 citations, 185 of which are new entries to the previous edition.)

  12. Transplanting native dominant plants to facilitate community development in restored coastal plain wetlands.

    SciTech Connect (OSTI)

    De Steven, Diane; Sharitz, Rebecca R.

    2007-12-01

    Abstract: Drained depressional wetlands are typically restored by plugging ditches or breaking drainage tiles to allow recovery of natural ponding regimes, while relying on passive recolonization from seed banks and dispersal to establish emergent vegetation. However, in restored depressions of the southeastern United States Coastal Plain, certain characteristic rhizomatous graminoid species may not recolonize because they are dispersal-limited and uncommon or absent in the seed banks of disturbed sites. We tested whether selectively planting such wetland dominants could facilitate restoration by accelerating vegetative cover development and suppressing non-wetland species. In an operational-scale project in a South Carolina forested landscape, drained depressional wetlands were restored in early 2001 by completely removing woody vegetation and plugging surface ditches. After forest removal, tillers of two rhizomatous wetland grasses (Panicum hemitomon, Leersia hexandra) were transplanted into singlespecies blocks in 12 restored depressions that otherwise were revegetating passively. Presence and cover of all plant species appearing in planted plots and unplanted control plots were recorded annually. We analyzed vegetation composition after two and four years, during a severe drought (2002) and after hydrologic recovery (2004). Most grass plantings established successfully, attaining 15%85% cover in two years. Planted plots had fewer total species and fewer wetland species compared to control plots, but differences were small. Planted plots achieved greater total vegetative cover during the drought and greater combined cover of wetland species in both years. By 2004, planted grasses appeared to reduce cover of non-wetland species in some cases, but wetter hydrologic conditions contributed more strongly to suppression of non-wetland species. Because these two grasses typically form a dominant cover matrix in herbaceous depressions, our results indicated that planting selected species could supplement passive restoration by promoting a vegetative structure closer to that of natural wetlands.

  13. Analysis on storage off-gas emissions from woody, herbaceous, and torrefied biomass

    SciTech Connect (OSTI)

    Tumuluru, Jaya Shankar; Lim, C. Jim; Bi, Xiaotao T.; Kuang, Xingya; Melin, Staffan; Yazdanpanah, Fahimeh; Sokhansanj, Shahab

    2015-03-02

    Wood chips, torrefied wood chips, ground switchgrass, and wood pellets were tested for off-gas emissions during storage. Storage canisters with gas-collection ports were used to conduct experiments at room temperature of 20 C and in a laboratory oven set at 40 C. Commercially-produced wood pellets yielded the highest carbon monoxide (CO) emissions at both 20 and 40 C (1600 and 13,000 ppmv), whereas torrefied wood chips emitted the lowest of about <200 and <2000 ppmv. Carbon dioxide (CO?) emissions from wood pellets were 3000 ppmv and 42,000 ppmv, whereas torrefied wood chips registered at about 2000 and 25,000 ppmv, at 20 and 40 C at the end of 11 days of storage. CO emission factors (milligrams per kilogram of biomass) calculated were lowest for ground switchgrass and torrefied wood chips (2.68 and 4.86 mg/kg) whereas wood pellets had the highest CO of about 10.60 mg/kg, respectively, at 40 C after 11 days of storage. In the case of CO?, wood pellets recorded the lowest value of 55.46 mg/kg, whereas switchgrass recorded the highest value of 318.72 mg/kg. This study concludes that CO emission factor is highest for wood pellets, CO? is highest for switchgrass and CH? is negligible for all feedstocks except for wood pellets, which is about 0.374 mg/kg at the end of 11-day storage at 40 C.

  14. High-solids enrichment of thermophilic microbial communities and their enzymes on bioenergy feedstocks

    SciTech Connect (OSTI)

    Reddy, A. P.; Allgaier, M.; Singer, S.W.; Hazen, T.C.; Simmons, B.A.; Hugenholtz, P.; VanderGheynst, J.S.

    2011-04-01

    Thermophilic microbial communities that are active in a high-solids environment offer great potential for the discovery of industrially relevant enzymes that efficiently deconstruct bioenergy feedstocks. In this study, finished green waste compost was used as an inoculum source to enrich microbial communities and associated enzymes that hydrolyze cellulose and hemicellulose during thermophilic high-solids fermentation of the bioenergy feedstocks switchgrass and corn stover. Methods involving the disruption of enzyme and plant cell wall polysaccharide interactions were developed to recover xylanase and endoglucanase activity from deconstructed solids. Xylanase and endoglucanase activity increased by more than a factor of 5, upon four successive enrichments on switchgrass. Overall, the changes for switchgrass were more pronounced than for corn stover; solids reduction between the first and second enrichments increased by a factor of four for switchgrass while solids reduction remained relatively constant for corn stover. Amplicon pyrosequencing analysis of small-subunit ribosomal RNA genes recovered from enriched samples indicated rapid changes in the microbial communities between the first and second enrichment with the simplified communities achieved by the third enrichment. The results demonstrate a successful approach for enrichment of unique microbial communities and enzymes active in a thermophilic high-solids environment.

  15. Watershed Scale Optimization to Meet Sustainable Cellulosic Energy...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... that could be implemented in a watershed (e.g. switchgrass in grassed waterways, vegetated ... 1.15 Truck Wait 1.329 19.68 0.87 0.87 Thompson & Tyner (2014) Oversize Permit 0.02 0.02 ...

  16. CX-003709: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Economic and Environmental Assessment of Switchgrass Production on High-Fertility Soil and an Assessment of Anaerobic Digesters as an Intermediate MarketCX(s) Applied: A9, B3.6, B3.8, B5.1Date: 09/16/2010Location(s): IllinoisOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  17. BETO-Funded Study Offers Methods to Support a Water-Sustainable Bioenergy Industry

    Broader source: Energy.gov [DOE]

    Argonne National Laboratory released a study funded by the U.S. Department of Energy’s Bioenergy Technologies Office (BETO) that examines the potential effects of future biofuel production on freshwater resources in the Missouri River Basin—a region that could play a central role in the production of cellulosic biomass like switchgrass, a perennial energy crop

  18. Twenty-Seventh Fungal Genetics Conference, Asilomar, CA, March 12-17, 2013

    SciTech Connect (OSTI)

    Walton, Jonathan

    2013-03-17

    This meeting brings together ~900 international scientists to discuss the latest research on fungal genetics. Sessions of particular relevance to DOE include lignocellulose degradation, cellulose conversion to fermentable sugars, fermentation of sugars to fuel molecules. Other sessions cover fungal diseases of biomass crops (miscanthus, corn, switchgrass, etc.).

  19. CERES: Cultivating Innovation

    SciTech Connect (OSTI)

    Hamilton, Richard

    2014-03-06

    CERES, with the help of ARPA-E funding, has rethought biofuels from the ground up. Their forward thinking approach to overcoming the traditional barriers for biofuels has resulted in creating high biomass feedstocks for switchgrass, sorghum, and miscanthus varietals. These new breeds grow taller and thicker on traditionally low rent farmland that doesn't compete with corn or other food crops.

  20. Biomass IBR Fact Sheet: ICM, Inc. | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ICM, Inc. Biomass IBR Fact Sheet: ICM, Inc. ICM, Inc. has modified its existing pilot plant and begun operations to use its biochemical conversion technology to produce fuelgrade ethanol from corn fiber, switchgrass, and energy sorghum. PDF icon ibr_arra_icm.pdf More Documents & Publications ICM, Incorporated ICM, Incorporated ICM, Incorporated

  1. CERES: Cultivating Innovation

    ScienceCinema (OSTI)

    Hamilton, Richard (CERES, President and CEO)

    2014-04-11

    CERES, with the help of ARPA-E funding, has rethought biofuels from the ground up. Their forward thinking approach to overcoming the traditional barriers for biofuels has resulted in creating high biomass feedstocks for switchgrass, sorghum, and miscanthus varietals. These new breeds grow taller and thicker on traditionally low rent farmland that doesn't compete with corn or other food crops.

  2. CX-003165: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Demonstration of On-Farm Production of a Dedicated Energy Crop Incorporating Multiple Varieties of Switchgrass SeedCX(s) Applied: A9, B3.6, B5.1Date: 05/11/2010Location(s): TennesseeOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  3. Vulnerability of crops and native grasses to summer drying in the U.S. Southern Great Plains

    SciTech Connect (OSTI)

    Raz-Yaseef, Naama; Billesbach, Dave P.; Fischer, Marc L.; Biraud, Sebastien C.; Gunter, Stacey A.; Bradford, James A.; Torn, Margaret S.

    2015-08-31

    The Southern Great Plains are characterized by a fine-scale mixture of different land-cover types, predominantly winter-wheat and grazed pasture, with relatively small areas of other crops, native prairie, and switchgrass. Recent droughts and predictions of increased drought in the Southern Great Plains, especially during the summer months, raise concern for these ecosystems. We measured ecosystem carbon and water fluxes with eddy-covariance systems over cultivated cropland for 10 years, and over lightly grazed prairie and new switchgrass fields for 2 years each. Growing-season precipitation showed the strongest control over net carbon uptake for all ecosystems, but with a variable effect: grasses (prairie and switchgrass) needed at least 350 mm of precipitation during the growing season to become net carbon sinks, while crops needed only 100 mm. In summer, high temperatures enhanced evaporation and led to higher likelihood of dry soil conditions. Therefore, summer-growing native prairie species and switchgrass experienced more seasonal droughts than spring-growing crops. For wheat, the net reduction in carbon uptake resulted mostly from a decrease in gross primary production rather than an increase in respiration. Flux measurements suggested that management practices for crops were effective in suppressing evapotranspiration and decomposition (by harvesting and removing secondary growth), and in increasing carbon uptake (by fertilizing and conserving summer soil water). In light of future projections for wetter springs and drier and warmer summers in the Southern Great Plains, our study indicates an increased vulnerability in native ecosystems and summer crops over time.

  4. Physical Energy Accounting in California: A Case Study of Cellulosic Ethanol Production

    SciTech Connect (OSTI)

    Coughlin, Katie; Fridley, David

    2008-07-17

    California's target for greenhouse gas reduction in part relies on the development of viable low-carbon fuel alternatives to gasoline. It is often assumed that cellulosic ethanol--ethanol made from the structural parts of a plant and not from the food parts--will be one of these alternatives. This study examines the physical viability of a switchgrass-based cellulosic ethanol industry in California from the point of view of the physical requirements of land, water, energy and other material use. Starting from a scenario in which existing irrigated pastureland and fiber-crop land is converted to switchgrass production, the analysis determines the total acreage and water supply available and the resulting total biofuel feedstock output under different assumed yields. The number and location of cellulosic ethanol biorefineries that can be supported is also determined, assuming that the distance from field to biorefinery would be minimized. The biorefinery energy input requirement, available energy from the fraction of biomass not converted to ethanol, and energy output is calculated at various levels of ethanol yields, making different assumptions about process efficiencies. The analysis shows that there is insufficient biomass (after cellulose separation and fermentation into ethanol) to provide all the process energy needed to run the biorefinery; hence, the purchase of external energy such as natural gas is required to produce ethanol from switchgrass. The higher the yield of ethanol, the more external energy is needed, so that the net gains due to improved process efficiency may not be positive. On 2.7 million acres of land planted in switchgrass in this scenario, the switchgrass outputproduces enough ethanol to substitute for only 1.2 to 4.0percent of California's gasoline consumption in 2007.

  5. A NEW PROCESS DEVELOPED FOR SEPARATION OF LIGNIN FROM AMMONIUM HYDROXIDE PRETREATMENT SOLUTIONS

    SciTech Connect (OSTI)

    Sherman, S.; Gorensek, M.; Milliken, C.

    2010-12-14

    A method is described for separating lignin from liquid solutions resulting from the pretreatment of lignocellulosic materials such as switchgrass with ammonium hydroxide. The method involves a sequence of steps including acidification, evaporation, and precipitation or centrifugation that are performed under defined conditions, and results in a relatively pure, solid lignin product. The method is tested on ammonium hydroxide solutions containing lignin extracted from switchgrass. Experimental results show that the method is capable of recovering between 66-95% of dissolved lignin as a precipitated solid. Cost estimates of pilot-scale and industrial-scale expressions of the process indicate that breakeven lignin prices of $2.36/kg and $0.78/kg, respectively, may be obtainable with this recovery method.

  6. Breakthrough: Using Microbes to Make Advanced Biofuels

    ScienceCinema (OSTI)

    Keasling, Jay

    2013-05-29

    Jay Keasling, Berkeley Lab's Associate Director for Bioscience and the CEO of DOE's Joint BioEnergy Institute (JBEI), explains how special strains of microbes can convert the biomass of non-food crops and agricultural waste into fuels for cars, trucks and jet planes. Keasling's research team at JBEI has developed E.coli that can digest switchgrass and convert the plant sugars into gasoline, diesel or jet fuel, not unlike the process by which beer is brewed.

  7. 2007 Biomass Program Overview

    SciTech Connect (OSTI)

    none,

    2009-10-27

    The Biomass Program is actively working with public and private partners to meet production and technology needs. With the corn ethanol market growing steadily, researchers are unlocking the potential of non-food biomass sources, such as switchgrass and forest and agricultural residues. In this way, the Program is helping to ensure that cost-effective technologies will be ready to support production goals for advanced biofuels.

  8. Potential Yield Mapping of Dedicated Energy Crops | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Potential Yield Mapping of Dedicated Energy Crops Potential Yield Mapping of Dedicated Energy Crops Breakout Session 1B-Integration of Supply Chains I: Breaking Down Barriers Potential Yield Mapping of Dedicated Energy Crops Chris Daly, Director, PRISM Climate Group, Oregon State University PDF icon daly_biomass_2014.pdf More Documents & Publications 2015 Peer Review Presentations-Terrestrial Feedstocks Switchgrass as a High-Potential Energy Crop Black Warrior: Sub-soil gas and fluid

  9. Vulnerability of crops and native grasses to summer drying in the U.S. Southern Great Plains

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Raz-Yaseef, Naama; Billesbach, Dave P.; Fischer, Marc L.; Biraud, Sebastien C.; Gunter, Stacey A.; Bradford, James A.; Torn, Margaret S.

    2015-08-31

    The Southern Great Plains are characterized by a fine-scale mixture of different land-cover types, predominantly winter-wheat and grazed pasture, with relatively small areas of other crops, native prairie, and switchgrass. Recent droughts and predictions of increased drought in the Southern Great Plains, especially during the summer months, raise concern for these ecosystems. We measured ecosystem carbon and water fluxes with eddy-covariance systems over cultivated cropland for 10 years, and over lightly grazed prairie and new switchgrass fields for 2 years each. Growing-season precipitation showed the strongest control over net carbon uptake for all ecosystems, but with a variable effect: grassesmore » (prairie and switchgrass) needed at least 350 mm of precipitation during the growing season to become net carbon sinks, while crops needed only 100 mm. In summer, high temperatures enhanced evaporation and led to higher likelihood of dry soil conditions. Therefore, summer-growing native prairie species and switchgrass experienced more seasonal droughts than spring-growing crops. For wheat, the net reduction in carbon uptake resulted mostly from a decrease in gross primary production rather than an increase in respiration. Flux measurements suggested that management practices for crops were effective in suppressing evapotranspiration and decomposition (by harvesting and removing secondary growth), and in increasing carbon uptake (by fertilizing and conserving summer soil water). In light of future projections for wetter springs and drier and warmer summers in the Southern Great Plains, our study indicates an increased vulnerability in native ecosystems and summer crops over time.« less

  10. Breakthrough: Using Microbes to Make Advanced Biofuels

    SciTech Connect (OSTI)

    Keasling, Jay

    2012-01-01

    Jay Keasling, Berkeley Lab's Associate Director for Bioscience and the CEO of DOE's Joint BioEnergy Institute (JBEI), explains how special strains of microbes can convert the biomass of non-food crops and agricultural waste into fuels for cars, trucks and jet planes. Keasling's research team at JBEI has developed E.coli that can digest switchgrass and convert the plant sugars into gasoline, diesel or jet fuel, not unlike the process by which beer is brewed.

  11. project information | netl.doe.gov

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Project Information Biomass Feed and Gasification Archived Projects Agreement Number Project Title Performer Name Technology Area FE0023577 Advanced Gasifier and Water Gas Shift Technologies for Low Cost Coal Conversion to High Hydrogen Syngas Aerojet Rocketdyne Coal & Coal-Biomass to Liquids, Gasification Systems Recently Completed FE0005339 Development of Kinetics and Mathematical Models for High Pressure Gasification of Lignite-Switchgrass Blends Georgia Tech Research Corporation Coal

  12. Modified Yeast Show Improved Xylose Fermentation and Toxin Tolerance -

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy Innovation Portal Show Improved Xylose Fermentation and Toxin Tolerance Great Lakes Bioenergy Research Center Contact GLBRC About This Technology Technology Marketing Summary Bleaching plant material with alkaline hydrogen peroxide (AHP) is an old process used for papermaking. Several decades ago researchers suggested that this method also could be used in biofuel production. The method involves treating switchgrass or corn stover with hydrogen peroxide under basic conditions.

  13. California: Agricultural Residues Produce Renewable Fuel | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Agricultural Residues Produce Renewable Fuel California: Agricultural Residues Produce Renewable Fuel April 18, 2013 - 12:00am Addthis Logos Technologies and EERE partnered with EdeniQ of Visalia, California, to construct a pilot plant that processes 1.2 tons per day of agricultural residues, such as corn stover (leaves and stalks), as well as other California-sourced indigenous, nonfood feedstock sources (wood chips and switchgrass). The project has completed 1,500 hours of

  14. Energy Department Announces $7 Million to Develop Advanced Logistics for

    Office of Environmental Management (EM)

    Bioenergy Feedstocks | Department of Energy 7 Million to Develop Advanced Logistics for Bioenergy Feedstocks Energy Department Announces $7 Million to Develop Advanced Logistics for Bioenergy Feedstocks December 4, 2014 - 8:40am Addthis The Energy Department announced today up to $7 million for two projects aimed at developing and demonstrating ways to reduce the cost of delivering bioenergy feedstocks to biorefineries. Examples of bioenergy feedstocks include corn stover, switchgrass, and

  15. Analysis on storage off-gas emissions from woody, herbaceous, and torrefied biomass

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Tumuluru, Jaya Shankar; Lim, C. Jim; Bi, Xiaotao T.; Kuang, Xingya; Melin, Staffan; Yazdanpanah, Fahimeh; Sokhansanj, Shahab

    2015-03-02

    Wood chips, torrefied wood chips, ground switchgrass, and wood pellets were tested for off-gas emissions during storage. Storage canisters with gas-collection ports were used to conduct experiments at room temperature of 20 °C and in a laboratory oven set at 40 °C. Commercially-produced wood pellets yielded the highest carbon monoxide (CO) emissions at both 20 and 40 °C (1600 and 13,000 ppmv), whereas torrefied wood chips emitted the lowest of about <200 and <2000 ppmv. Carbon dioxide (CO₂) emissions from wood pellets were 3000 ppmv and 42,000 ppmv, whereas torrefied wood chips registered at about 2000 and 25,000 ppmv, atmore » 20 and 40 °C at the end of 11 days of storage. CO emission factors (milligrams per kilogram of biomass) calculated were lowest for ground switchgrass and torrefied wood chips (2.68 and 4.86 mg/kg) whereas wood pellets had the highest CO of about 10.60 mg/kg, respectively, at 40 °C after 11 days of storage. In the case of CO₂, wood pellets recorded the lowest value of 55.46 mg/kg, whereas switchgrass recorded the highest value of 318.72 mg/kg. This study concludes that CO emission factor is highest for wood pellets, CO₂ is highest for switchgrass and CH₄ is negligible for all feedstocks except for wood pellets, which is about 0.374 mg/kg at the end of 11-day storage at 40 °C.« less

  16. ARPA-E Innovators: CERES | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Innovators: CERES ARPA-E Innovators: CERES February 27, 2013 - 12:40pm Addthis Quentin Kruger Quentin Kruger Former Multimedia Producer, contractor to the U.S. Department of Energy CERES: Cultivating Innovation from DOE ARPA-E on Vimeo. CERES, with the help of ARPA-E funding, has rethought biofuels from the ground up. Their forward thinking approach to overcoming the traditional barriers for biofuels has resulted in creating high biomass feedstocks for switchgrass, sorghum, and miscanthus

  17. EERE Success Story-California: Agricultural Residues Produce Renewable

    Office of Environmental Management (EM)

    Fuel | Department of Energy Agricultural Residues Produce Renewable Fuel EERE Success Story-California: Agricultural Residues Produce Renewable Fuel April 18, 2013 - 12:00am Addthis Logos Technologies and EERE partnered with EdeniQ of Visalia, California, to construct a pilot plant that processes 1.2 tons per day of agricultural residues, such as corn stover (leaves and stalks), as well as other California-sourced indigenous, nonfood feedstock sources (wood chips and switchgrass). The

  18. Field-to-Fuel Performance Testing of Lignocellulosic Feedstocks: An Integrated Study of the Fast Pyrolysis/Hydrotreating Pathway

    SciTech Connect (OSTI)

    Howe, Daniel T.; Westover, Tyler; Carpenter, Daniel; Santosa, Daniel M.; Emerson, Rachel; Deutch, Steve; Starace, Anne; Kutnyakov, Igor V.; Lukins, Craig D.

    2015-05-21

    Feedstock composition can affect final fuel yields and quality for the fast pyrolysis and hydrotreatment upgrading pathway. However, previous studies have focused on individual unit operations rather than the integrated system. In this study, a suite of six pure lignocellulosic feedstocks (clean pine, whole pine, tulip poplar, hybrid poplar, switchgrass, and corn stover) and two blends (equal weight percentages whole pine/tulip poplar/switchgrass and whole pine/clean pine/hybrid poplar) were prepared and characterized at Idaho National Laboratory. These blends then underwent fast pyrolysis at the National Renewable Energy Laboratory and hydrotreatment at Pacific Northwest National Laboratory. Although some feedstocks showed a high fast pyrolysis bio-oil yield such as tulip poplar at 57%, high yields in the hydrotreater were not always observed. Results showed overall fuel yields of 15% (switchgrass), 18% (corn stover), 23% (tulip poplar, Blend 1, Blend 2), 24% (whole pine, hybrid poplar) and 27% (clean pine). Simulated distillation of the upgraded oils indicated that the gasoline fraction varied from 39% (clean pine) to 51% (corn stover), while the diesel fraction ranged from 40% (corn stover) to 46% (tulip poplar). Little variation was seen in the jet fuel fraction at 11 to 12%. Hydrogen consumption during hydrotreating, a major factor in the economic feasibility of the integrated process, ranged from 0.051 g/g dry feed (tulip poplar) to 0.070 g/g dry feed (clean pine).

  19. Precision Gas Sampling (PGS) Validation2011-2014 Final Campaign Report

    SciTech Connect (OSTI)

    Tom, MS; Billesbach, D; Fischer, ML; Biraud, SC

    2016-01-01

    In this field campaign, we used eddy covariance towers to quantify carbon, water, and energy fluxes from a pasture and a wheat field that were converted to switchgrass. The U.S. Department of Energy is investing in switchgrass as a cellulosic bioenergy crop, but there is little data available that could be used to develop or test land surface model representations of the crop. This campaign was a collaboration between Lawrence Berkeley National Laboratory and the U.S. Department of Agriculture Agricultural Research Service. Unfortunately, in 2011, Oklahoma had one of the most severe droughts on record, and the crop in one of the switchgrass fields experienced almost complete die-off. The crop was replanted, but subsequent drought conditions prevented its establishment. Then, in April 2012, a large tornado demolished the instruments at our site in Woodward, Oklahoma. These two events meant that we have some interesting data on land response to extreme weather; however, we were not able to collect continuous data for annual sums as originally intended. We did observe that, because of the drought, the net ecosystem exchange of CO2 was much lower in 2011 than in 2010. Concomitantly, sensible heat fluxes increased and latent heat fluxes decreased. These conditions would have large consequences for land surface forcing of convection. Data from all years were submitted to the Atmospheric Radiation Measurement Climate Research Facility Data Archive, and the sites were registered in AmeriFlux.

  20. The American farm: Harnessing the sun to fuel the world

    SciTech Connect (OSTI)

    Not Available

    1994-03-01

    This NREL publication forecasts the future in energy crops. Tomorrow`s farm will produce crops like corn, soybeans, rapeseed, sunflowers for food and fuel. Farmers will harvest switchgrass and then sell it for feed or to make ethanol. Aspects of planting trees that are beneficial to the environment such as filtering run-off water are discussed. Economic issues of energy crop growth are presented. The harvesting of trees for pulp, paper, and energy and corn for electricity, fuels, and chemicals are both emphasized. Tree harvesting research from breeding programs to high-tech harvesting techniques is presented.