National Library of Energy BETA

Sample records for heterogeneous feed biorefinery

  1. IMPROVED BIOREFINERY FOR THE PRODUCTION OF ETHANOL, CHEMICALS, ANIMAL FEED AND BIOMATERIALS FROM SUGAR CANE

    SciTech Connect (OSTI)

    Dr. Donal F. Day

    2009-01-29

    The Audubon Sugar Institute (ASI) of Louisiana State University’s Agricultural Center (LSU AgCenter) and MBI International (MBI) sought to develop technologies that will lead to the development of a sugar-cane biorefinery, capable of supplying fuel ethanol from bagasse. Technology development focused on the conversion of bagasse, cane-leaf matter (CLM) and molasses into high value-added products that included ethanol, specialty chemicals, biomaterials and animal feed; i.e. a sugar cane-based biorefinery. The key to lignocellulosic biomass utilization is an economically feasible method (pretreatment) for separating the cellulose and the hemicellulose from the physical protection provided by lignin. An effective pretreatment disrupts physical barriers, cellulose crystallinity, and the association of lignin and hemicellulose with cellulose so that hydrolytic enzymes can access the biomass macrostructure (Teymouri et al. 2004, Laureano-Perez, 2005). We chose to focus on alkaline pretreatment methods for, and in particular, the Ammonia Fiber Expansion (AFEX) process owned by MBI. During the first two years of this program a laboratory process was established for the pretreatment of bagasse and CLM using the AFEX process. There was significant improvement of both rate and yield of glucose and xylose upon enzymatic hydrolysis of AFEX-treated bagasse and CLM compared with untreated material. Because of reactor size limitation, several other alkaline pretreatment methods were also co-investigated. They included, dilute ammonia, lime and hydroxy-hypochlorite treatments. Scale-up focused on using a dilute ammonia process as a substitute for AFEX, allowing development at a larger scale. The pretreatment of bagasse by an ammonia process, followed by saccharification and fermentation produced ethanol from bagasse. Simultaneous saccharification and fermentation (SSF) allowed two operations in the same vessel. The addition of sugarcane molasses to the hydrolysate/fermentation process yielded improvements beyond what was expected solely from the addition of sugar. In order to expand the economic potential for building a biorefinery, the conversion of enzyme hydrolysates of AFEX-treated bagasse to succinic acid was also investigated. This program established a solid basis for pre-treatment of bagasse in a manner that is feasible for producing ethanol at raw sugar mills.

  2. Alpena Biorefinery

    Broader source: Energy.gov [DOE]

    The Alpena Biorefinery will be constructed in Alpena, Michigan, at the Decorative Panels International hardboard manufacturing facility.

  3. 9003: Biorefinery Assistance Program

    Broader source: Energy.gov [DOE]

    Breakout Session 1D—Building Market Confidence and Understanding I: Integrated Biorefinery (Lessons Learned and Best Practices) 9003: Biorefinery Assistance Program Chris Cassidy, National Business Renewable Energy Advisor, U.S. Department of Agriculture

  4. Mascoma: Frontier Biorefinery Project

    Broader source: Energy.gov [DOE]

    This project involves the construction and operation of a biorefinery that produces ethanol and other co-products from cellulosic materials through advanced consolidated bioprocessing.

  5. Elevance Pilot-Scale Biorefinery

    Broader source: Energy.gov [DOE]

    The Elevance biorefinery uses catalyst technology to produce fuels and chemicals from renewable, natural oils.

  6. Economy Through Product Diversity: Integrated Biorefineries

    SciTech Connect (OSTI)

    2010-03-01

    A general discussion of the integrated biorefinery concept, the Biomass Program's related activities and challenges and specific biorefinery projects being funded through the Program.

  7. Economy Through Product Diversity: Integrated Biorefineries ...

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

    Economy Through Product Diversity: Integrated Biorefineries Economy Through Product Diversity: Integrated Biorefineries Achieving national energy and climate goals will require an...

  8. Red Shield Acquisition, LLC, Integrated Biorefinery

    Broader source: Energy.gov [DOE]

    This demonstration-scale biorefinery will produce lignocellulosic sugars for biofuel feedstock from woody biomass.

  9. Lignol Innovations, Inc. Demonstration-Scale Biorefinery

    Broader source: Energy.gov [DOE]

    The Lignol Innovations, Inc., biorefinery will produce cellulosic ethanol, high purity lignin, and furfural from hardwoods.

  10. 2011 Biomass Program Platform Peer Review: Integrated Biorefineries...

    Office of Environmental Management (EM)

    2011 Biomass Program Platform Peer Review: Integrated Biorefineries 2011 Biomass Program Platform Peer Review: Integrated Biorefineries "This document summarizes the...

  11. American Process—Alpena Biorefinery Lessons

    Broader source: Energy.gov [DOE]

    Breakout Session 1D—Building Market Confidence and Understanding I: Integrated Biorefinery (Lessons Learned and Best Practices) American Process—Alpena Biorefinery Lessons Theodora Retsina, Chief Executive Officer, America Process Inc.

  12. EA-1790: Final Environmental Assessment

    Broader source: Energy.gov [DOE]

    Construction and Operation of a Heterogeneous Feed Biorefinery Enerkem Corporation Pontotoc, Mississippi

  13. Range Fuels Commercial-Scale Biorefinery

    Broader source: Energy.gov [DOE]

    The Range Fuels commercial-scale biorefinery will use a variety of feedstocks to create cellulosic ethanol, methanol, and power.

  14. Engineering Cellulases for Biorefinery

    SciTech Connect (OSTI)

    Manoj Kumar, PhD

    2010-06-27

    Lignocellulosic biomass is the most abundant, least expensive renewable natural biological resource for the production of biobased products and bioenergy is important for the sustainable development of human civilization in 21st century. For making the fermentable sugars from lignocellulosic biomass, a reduction in cellulase production cost, an improvement in cellulase performance, and an increase in sugar yields are all vital to reduce the processing costs of biorefineries. Improvements in specific cellulase activities for non-complexed cellulase mixtures can be implemented through cellulase engineering based on rational design or directed evolution for each cellulase component enzyme, as well as on the reconstitution of cellulase components. In this paper, we will provide DSM's efforts in cellulase research and developments and focus on limitations. Cellulase improvement strategies based on directed evolution using screening on relevant substrates, screening for higher thermal tolerance based on activity screening approaches such as continuous culture using insoluble cellulosic substrates as a powerful selection tool for enriching beneficial cellulase mutants from the large library. We will illustrate why and how thermostable cellulases are vital for economic delivery of bioproducts from cellulosic biomass using biochemical conversion approach.

  15. Feeding

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

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  16. Advanced and Cellulosic Biofuels and Biorefineries: State of...

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

    and Cellulosic Biofuels and Biorefineries: State of the Industry, Policy and Politics Advanced and Cellulosic Biofuels and Biorefineries: State of the Industry, Policy and Politics...

  17. 2014 DOE Biomass Program Integrated Biorefinery Project Comprehensive...

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

    4 DOE Biomass Program Integrated Biorefinery Project Comprehensive Project Review 2014 DOE Biomass Program Integrated Biorefinery Project Comprehensive Project Review Plenary I:...

  18. FOA for the Demonstration of an Integrated Biorefinery System...

    Energy Savers [EERE]

    Demonstration of an Integrated Biorefinery System: Abengoa Bioenergy Biomass of Kansas, LLC FOA for the Demonstration of an Integrated Biorefinery System: Blue Fire Ethanol, Inc...

  19. A Biorefinery Goes 'Mod' and Small

    Broader source: Energy.gov [DOE]

    Minnesota-based Easy Energy Systems sells small-scale, easy-to use biorefineries. The company expects to create 100 jobs because of new orders.

  20. Economy Through Product Diversity: Integrated Biorefineries ...

    Energy Savers [EERE]

    establish integrated biorefineries capable of efficiently converting a broad range of biomass feedstocks into affordable biofuels, biopower, and other products. ibrfourpager.pdf...

  1. Integrated Biorefineries: Biofuels, Biopower, and Bioproducts

    SciTech Connect (OSTI)

    2013-05-06

    This fact sheet describes integrated biorefineries and the Program's work with them. A crucial step in developing the U.S. bioindustry is to establish integrated biorefineries capable of efficiently converting a broad range of biomass feedstocks into affordable biofuels, biopower, and other bioproducts.

  2. Multitasking mesoporous nanomaterials for biorefinery applications

    SciTech Connect (OSTI)

    Kandel, Kapil

    2013-05-02

    Mesoporous silica nanoparticles (MSNs) have attracted great interest for last two decades due to their unique and advantageous structural properties, such as high surface area, pore volume, stable mesostructure, tunable pore size and controllable particle morphology. The robust silica framework provides sites for organic modifications, making MSNs ideal platforms for adsorbents and supported organocatalysts. In addition, the pores of MSNs provide cavities/ channels for incorporation of metal and metal oxide nanoparticle catalysts. These supported metal nanoparticle catalysts benefit from confined local environments to enhance their activity and selectivity for various reactions. Biomass is considered as a sustainable feedstock with potential to replace diminishing fossil fuels for the production of biofuels. Among several strategies, one of the promising methods of biofuel production from biomass is to reduce the oxygen content of the feedstock in order to improve the energy density. This can be achieved by creating C-C bonds between biomass derived intermediates to increase the molecular weight of the final hydrocarbon molecules. In this context, pore size and organic functionality of MSNs are varied to obtain the ideal catalyst for a C-C bond forming reaction: the aldol condensation. The mechanistic aspects of this reaction in supported heterogeneous catalysts are explored. The modification of supported organocatalyst and the effect of solvent on the reaction are rationalized. The significance of two functional surfaces of MSNs is exploited by enzyme immobilization on the external surface and organo catalyst functionalization on the internal surface. Using this bifunctional catalyst, the tandem conversion of small chain alcohols into longer chain hydrocarbon molecules is demonstrated. The ability to incorporate metal and metal oxide nanoparticles in the pores and subsequent functionalization led to develop organic modified magnetic MSNs (OM-MSNs) for applications in microalgae biorefinery. Two different integrated biorefinery systems are highlighted. (i) OM-MSNs are used to harvest microalgae and selectively sequester free fatty acids (FFAs). (ii) OM-MSNs are shown to selectively sequester FFAs and convert them into diesel-range liquid hydrocarbon fuels. A similar MSN supported metal nanoparticle catalyst is demonstrated to transform FFAs into green diesel with even greater activity and selectivity. The incorporation of a different organic functional group into MSN provides a selective adsorbent for separation and purification of ?-tocopherol from microalgae oil. The functional group with electron deficient aromatic rings demonstrated high sequestration capacity and selectivity of {alpha}-tocopherol.

  3. 2009 Integrated Biorefinery Platform Review Report

    SciTech Connect (OSTI)

    Ferrell, John

    2009-12-01

    This document summarizes the recommendations and evaluations provided by an independent external panel of experts at the U.S. Department of Energy Biomass Program‘s Integrated Biorefinery (IBR) platform review meeting, held on February 18–19, 2009, at the Westin National Harbor, National Harbor, Maryland.

  4. Biorefinery and Hydrogen Fuel Cell Research

    SciTech Connect (OSTI)

    K.C. Das; Thomas T. Adams; Mark A. Eiteman; John Stickney; Joy Doran Peterson; James R. Kastner; Sudhagar Mani; Ryan Adolphson

    2012-06-12

    In this project we focused on several aspects of technology development that advances the formation of an integrated biorefinery. These focus areas include: [1] establishment of pyrolysis processing systems and characterization of the product oils for fuel applications, including engine testing of a preferred product and its pro forma economic analysis; [2] extraction of sugars through a novel hotwater extaction process, and the development of levoglucosan (a pyrolysis BioOil intermediate); [3] identification and testing of the use of biochar, the coproduct from pyrolysis, for soil applications; [4] developments in methods of atomic layer epitaxy (for efficient development of coatings as in fuel cells); [5] advancement in fermentation of lignocellulosics, [6] development of algal biomass as a potential substrate for the biorefinery, and [7] development of catalysts from coproducts. These advancements are intended to provide a diverse set of product choices within the biorefinery, thus improving the cost effectiveness of the system. Technical effectiveness was demonstrated in the pyrolysis biooil based diesel fuel supplement, sugar extraction from lignocelluose, use of biochar, production of algal biomass in wastewaters, and the development of catalysts. Economic feasibility of algal biomass production systems seems attractive, relative to the other options. However, further optimization in all paths, and testing/demonstration at larger scales are required to fully understand the economic viabilities. The various coproducts provide a clear picture that multiple streams of value can be generated within an integrated biorefinery, and these include fuels and products.

  5. Biorefinery and Carbon Cycling Research Project

    SciTech Connect (OSTI)

    Das, K. C., Adams; Thomas, T; Eiteman, Mark A; Kastner, James R; Mani, Sudhagar; Adolphson, Ryan

    2012-06-08

    In this project we focused on several aspects of technology development that advances the formation of an integrated biorefinery. These focus areas include: [ 1] pretreatment of biomass to enhance quality of products from thermochemical conversion; [2] characterization of and development of coproduct uses; [3] advancement in fermentation of lignocellulosics and particularly C5 and C6 sugars simultaneously, and [ 4] development of algal biomass as a potential substrate for the biorefinery. These advancements are intended to provide a diverse set of product choices within the biorefinery, thus improving the cost effectiveness of the system. Technical effectiveness was demonstrated in the thermochemical product quality in the form of lower tar production, simultaneous of use of multiple sugars in fermentation, use ofbiochar in environmental (ammonia adsorption) and agricultural applications, and production of algal biomass in wastewaters. Economic feasibility of algal biomass production systems seems attractive, relative to the other options. However, further optimization in all paths, and testing/demonstration at larger scales are required to fully understand the economic viabilities. The coproducts provide a clear picture that multiple streams of value can be generated within an integrated biorefinery, and these include fuels and products.

  6. Second-Generation Biofuels from Multi-Product Biorefineries Combine...

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

    Second-Generation Biofuels from Multi-Product Biorefineries Combine Economic Sustainability With Environmental Sustainability Second-Generation Biofuels from Multi-Product...

  7. Integrated Biorefinery Research Facility: Advancing Biofuels Technology (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2009-03-01

    The Integrated Biorefinery Research Facility (IBRF) at the National Renewable Energy Laboratory (NREL) expands NREL's cellulosic ethanol research and development and collaboration capabilities.

  8. Pilot-Scale Biorefinery: Sustainable Transport Fuels from Biomass...

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

    Pilot-Scale Biorefinery: Sustainable Transport Fuels from Biomass via Integrated Pyrolysis, Catalytic Hydroconversion and Co-processing with Vacuum Gas Oil Raymond G. Wissinger...

  9. Nationwide: The Nation's First Commercial-Scale Biorefineries...

    Energy Savers [EERE]

    target"blank">Watch a video segment about Bruce's story at the beginning of the film "Bioenergy: America's Energy Future." EERE Energy Impacts: Biorefineries Give Local...

  10. ClearFuels-Rentech Pilot-Scale Biorefinery

    Broader source: Energy.gov [DOE]

    The ClearFuels-Rentech pilot-scale biorefinery will use Fisher-Tropsch gas-to-liquids technology to create diesel and jet fuel.

  11. FOA for the Demonstration of an Integrated Biorefinery System...

    Energy Savers [EERE]

    Abengoa Bioenergy Biomass of Kansas, LLC FOA for the Demonstration of an Integrated Biorefinery System: Abengoa Bioenergy Biomass of Kansas, LLC FOA for the Demonstration of an...

  12. Thermochemical Conversion - Biorefinery Integration | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Financing ToolInternational Affairs,Department of EnergyPROGRAM The StateTheThe- Biorefinery

  13. NREL: Biomass Research - Integrated Biorefinery Research Facility

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJessework usesof EnergyY-12 NationalNO FEARIntegrated Biorefinery Research

  14. Preprocessing Moist Lignocellulosic Biomass for Biorefinery Feedstocks

    SciTech Connect (OSTI)

    Neal Yancey; Christopher T. Wright; Craig Conner; J. Richard Hess

    2009-06-01

    Biomass preprocessing is one of the primary operations in the feedstock assembly system of a lignocellulosic biorefinery. Preprocessing is generally accomplished using industrial grinders to format biomass materials into a suitable biorefinery feedstock for conversion to ethanol and other bioproducts. Many factors affect machine efficiency and the physical characteristics of preprocessed biomass. For example, moisture content of the biomass as received from the point of production has a significant impact on overall system efficiency and can significantly affect the characteristics (particle size distribution, flowability, storability, etc.) of the size-reduced biomass. Many different grinder configurations are available on the market, each with advantages under specific conditions. Ultimately, the capacity and/or efficiency of the grinding process can be enhanced by selecting the grinder configuration that optimizes grinder performance based on moisture content and screen size. This paper discusses the relationships of biomass moisture with respect to preprocessing system performance and product physical characteristics and compares data obtained on corn stover, switchgrass, and wheat straw as model feedstocks during Vermeer HG 200 grinder testing. During the tests, grinder screen configuration and biomass moisture content were varied and tested to provide a better understanding of their relative impact on machine performance and the resulting feedstock physical characteristics and uniformity relative to each crop tested.

  15. 2011 Biomass Program Platform Peer Review: Integrated Biorefineries...

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

    provided by an independent external panel of experts at the U.S. Department of Energy Biomass Programs Integrated Biorefinery Platform Review meeting, held on February 1...3,...

  16. FOA for the Demonstration of an Integrated Biorefinery System...

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

    Blue Fire Ethanol, Inc. Award No. DE-FC36-07GO17025 More Documents & Publications FOA for the Demonstration of an Integrated Biorefinery System: Abengoa Bioenergy Biomass of...

  17. Simulating Pelletization Strategies to Reduce the Biomass Supply Risk at America's Biorefineries

    E-Print Network [OSTI]

    Ford, Andrew

    1 Simulating Pelletization Strategies to Reduce the Biomass Supply Risk at America's Biorefineries the targets. This paper explores pelletizer strategies to convert the lignocellulosic biomass into a denser system would outperform conventional biorefinery supply systems. Pelletizer strategies exhibit somewhat

  18. Preliminary Economics for the Production of Pyrolysis Oil from Lignin in a Cellulosic Ethanol Biorefinery

    SciTech Connect (OSTI)

    Jones, Susanne B.; Zhu, Yunhua

    2009-04-01

    Cellulosic ethanol biorefinery economics can be potentially improved by converting by-product lignin into high valued products. Cellulosic biomass is composed mainly of cellulose, hemicellulose and lignin. In a cellulosic ethanol biorefinery, cellulose and hemicellullose are converted to ethanol via fermentation. The raw lignin portion is the partially dewatered stream that is separated from the product ethanol and contains lignin, unconverted feed and other by-products. It can be burned as fuel for the plant or can be diverted into higher-value products. One such higher-valued product is pyrolysis oil, a fuel that can be further upgraded into motor gasoline fuels. While pyrolysis of pure lignin is not a good source of pyrolysis liquids, raw lignin containing unconverted feed and by-products may have potential as a feedstock. This report considers only the production of the pyrolysis oil and does not estimate the cost of upgrading that oil into synthetic crude oil or finished gasoline and diesel. A techno-economic analysis for the production of pyrolysis oil from raw lignin was conducted. comparing two cellulosic ethanol fermentation based biorefineries. The base case is the NREL 2002 cellulosic ethanol design report case where 2000 MTPD of corn stover is fermented to ethanol (NREL 2002). In the base case, lignin is separated from the ethanol product, dewatered, and burned to produce steam and power. The alternate case considered in this report dries the lignin, and then uses fast pyrolysis to generate a bio-oil product. Steam and power are generated in this alternate case by burning some of the corn stover feed, rather than fermenting it. This reduces the annual ethanol production rate from 69 to 54 million gallons/year. Assuming a pyrolysis oil value similar to Btu-adjusted residual oil, the estimated ethanol selling price ranges from $1.40 to $1.48 (2007 $) depending upon the yield of pyrolysis oil. This is considerably above the target minimum ethanol selling price of $1.33 for the 2012 goal case process as reported in the 2007 State of Technology Model (NREL 2008). Hence, pyrolysis oil does not appear to be an economically attractive product in this scenario. Further research regarding fast pyrolysis of raw lignin from a cellulosic plant as an end product is not recommended. Other processes, such as high-pressure liquefaction or wet gasification, and higher value products, such as gasoline and diesel from fast pyrolysis oil should be considered in future studies.

  19. 3.1.1.2 Feed Processing and Handling DL2 Final Report

    SciTech Connect (OSTI)

    Elliott, Douglas C.; Magnuson, Jon K.; Wend, Christopher F.

    2006-09-30

    This milestone report is the deliverable for our Feed Processing and Handling project. It includes results of wet biomass feedstock analysis, slurry pumping information, fungal processing to produce a lignin-rich biorefinery residue and two subcontracted efforts to quantify the amount of wet biomass feedstocks currently available within the corn processing and paper processing industries.

  20. Biomass Program 2007 Peer Review - Integrated Biorefinery Platform Summary

    SciTech Connect (OSTI)

    none,

    2009-10-27

    This document discloses the comments provided by a review panel at the U.S. Department of Energy Office of the Biomass Program Peer Review held on November 15-16, 2007 in Baltimore, MD and the Integrated Biorefinery Platform Review held on August 13-15, 2007 in Golden, Colorado.

  1. EIS-0407: Abengoa Biorefinery Project Near Hugoton, Kansas

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy prepared an environmental impact statement to assess the potential environmental impacts associated with the proposed action of providing Federal financial assistance to Abengoa Bioenergy Biomass of Kansas, LLC (Abengoa Bioenergy) to support the design, construction, and startup of a commercial-scale integrated biorefinery to be located near the city of Hugoton in Stevens County, southwestern Kansas.

  2. Strategic supply system design - a holistic evaluation of operational and production cost for a biorefinery supply chain

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

    Lamers, Patrick; Tan, Eric C.D.; Searcy, Erin M.; Scarlata, Christopher J.; Cafferty, Kara G.; Jacobson, Jacob J.

    2015-08-20

    Pioneer cellulosic biorefineries across the United States rely on a conventional feedstock supply system based on one-year contracts with local growers, who harvest, locally store, and deliver feed-stock in low-density format to the conversion facility. While the conventional system is designed for high biomass yield areas, pilot scale operations have experienced feedstock supply shortages and price volatilities due to reduced harvests and competition from other industries. Regional supply dependency and the inability to actively manage feedstock stability and quality, provide operational risks to the biorefinery, which translate into higher investment risk. The advanced feedstock supply system based on a networkmore »of depots can mitigate many of these risks and enable wider supply system benefits. This paper compares the two concepts from a system-level perspective beyond mere logistic costs. It shows that while processing operations at the depot increase feedstock supply costs initially, they enable wider system benefits including supply risk reduction (leading to lower interest rates on loans), industry scale-up, conversion yield improvements, and reduced handling equipment and storage costs at the biorefinery. When translating these benefits into cost reductions per liter of gasoline equivalent (LGE), we find that total cost reductions between -$0.46 to -$0.21 per LGE for biochemical and -$0.32 to -$0.12 per LGE for thermochemical conversion pathways are possible. Naturally, these system level benefits will differ between individual actors along the feedstock supply chain. Further research is required with respect to depot sizing, location, and ownership structures.« less

  3. Partnering with Industry to Advance Biofuels, NREL's Integrated Biorefinery Research Facility (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-10-01

    Fact sheet describing NREL's Integrated Biorefinery Research Facility and its availability to biofuels' industry partners who want to operate, test, and develop biorefining technology and equipment.

  4. Conceptual design assessment for the co-firing of bio-refinery supplied lignin project. Quarterly report, June 23--July 1, 2000

    SciTech Connect (OSTI)

    Berglund, T.; Ranney, J.T.; Babb, C.L.

    2000-07-27

    The Conceptual Design Assessment for the Co-Firing of Bio-Refinery Supplied Lignin Project was successfully kicked off on July 23, 2000 during a meeting at the TVA-PPI facility in Muscle Shoals, AL. An initial timeline for the study was distributed, issues of concern were identified and a priority actions list was developed. Next steps include meeting with NETL to discuss de-watering and lignin fuel testing, the development of the mass balance model and ethanol facility design criteria, providing TVA-Colbert with preliminary lignin fuel analysis and the procurement of representative feed materials for the pilot and bench scale testing of the hydrolysis process.

  5. ClearFuels-Rentech Integrated Biorefinery Final Report

    SciTech Connect (OSTI)

    Pearson, Joshua

    2014-02-26

    The project Final Report describes the validation of the performance of the integration of two technologies that were proven individually on a pilot scale and were demonstrated as a pilot scale integrated biorefinery. The integrated technologies were a larger scale ClearFuels’ (CF) advanced flexible biomass to syngas thermochemical high efficiency hydrothermal reformer (HEHTR) technology with Rentech’s (RTK) existing synthetic gas to liquids (GTL) technology.

  6. Institute for Critical Technology and Applied Science Seminar Series Biorefinery -A Sustainable Molecular

    E-Print Network [OSTI]

    Crawford, T. Daniel

    Institute for Critical Technology and Applied Science Seminar Series Biorefinery - A Sustainable In future research, developing materials, fuels and energy devices from renewable resources would, intermediates and products in a`Biorefinery'. Our continuous efforts in this area led us to develop new

  7. NREL Biorefinery Analysis Process Models | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc Jump to: navigation,MeregNIFE Baterias Industriais Jump to:Biorefinery

  8. Conceptual Design of Biorefineries Through the Synthesis of Optimal Chemical-reaction Pathways 

    E-Print Network [OSTI]

    Pennaz, Eric James

    2011-10-21

    Decreasing fossil fuel reserves and environmental concerns necessitate a shift toward biofuels. However, the chemistry of many biomass to fuel conversion pathways remains to be thoroughly studied. The future of biorefineries ...

  9. Second-Generation Biofuels from Multi-Product Biorefineries Combine Economic Sustainability With Environmental Sustainability

    Broader source: Energy.gov [DOE]

    Breakout Session 3B—Integration of Supply Chains III: Algal Biofuels Strategy Second-Generation Biofuels from Multi-Product Biorefineries Combine Economic Sustainability With Environmental Sustainability Martin Sabarsky, Chief Executive Officer, Cellana

  10. EA-1705: Construction and Operation of a Proposed Cellulosic Biorefinery, Mascoma Corporation, Kinross Charter Township, Michigan

    Broader source: Energy.gov [DOE]

    The frontier Project consists of the design, construction and operation of a biorefinery producing ethanol and other co-products from cellulosic materials utilizing a proprietary pretreatment and fermentation process.

  11. Amyris, Inc. Integrated Biorefinery Project Summary Final Report - Public Version

    SciTech Connect (OSTI)

    Gray, David; Sato, Suzanne; Garcia, Fernando; Eppler, Ross; Cherry, Joel

    2014-03-12

    The Amyris pilot-scale Integrated Biorefinery (IBR) leveraged Amyris synthetic biology and process technology experience to upgrade Amyris’s existing Emeryville, California pilot plant and fermentation labs to enable development of US-based production capabilities for renewable diesel fuel and alternative chemical products. These products were derived semi-synthetically from high-impact biomass feedstocks via microbial fermentation to the 15-carbon intermediate farnesene, with subsequent chemical finishing to farnesane. The Amyris IBR team tested and provided methods for production of diesel and alternative chemical products from sweet sorghum, and other high-impact lignocellulosic feedstocks, at pilot scale. This enabled robust techno-economic analysis (TEA), regulatory approvals, and a basis for full-scale manufacturing processes and facility design.

  12. Feeding Experiment 

    E-Print Network [OSTI]

    Gulley, F. A. (Frank Arthur)

    1889-01-01

    considerable portion of the State cotton seed is one of our cheapest feed stuffs. We have also made use of silage largely, notwithstanding the fact that it is practically unknown in the State. That silage is one of the most economical and desirable feeding... materials, where corn and sorghum thrive, has been conclusively demonstrated in every state east of the Mississippi river and several west. While there is much to learn in regard to the kind of crops to grow for silage, how to handle and how to feed them...

  13. IEA Bioenergy Task 42 on Biorefineries: Co-production of fuels, chemicals, power and materials from biomass

    E-Print Network [OSTI]

    : national bioenergy production, non-energetic biomass use, bioenergy related policy goals, national oil1 IEA Bioenergy Task 42 on Biorefineries: Co-production of fuels, chemicals, power and materials developed by the members of IEA Bioenergy Task 42 on Biorefinery: Co-production of Fuels, Chemicals, Power

  14. EA-1850: Flambeau River BioFuels, Inc. Proposed Wood Biomass-to-Liquid Fuel Biorefinery, Park Falls, Wisconsin

    Broader source: Energy.gov [DOE]

    NOTE: This EA has been cancelled. This EA will evaluate the environmental impacts of a proposal to provide federal funding to Flambeau River Biofuels (FRB) to construct and operate a biomass-to-liquid biorefinery in Park Falls, Wisconsin, on property currently used by Flambeau Rivers Paper, LLC (FRP) for a pulp and paper mill and Johnson Timber Corporation's (JTC) Summit Lake Yard for timber storage. This project would design a biorefinery which would produce up to 1,150 barrels per day (bpd) of clean syncrude. The biorefinery would also supply steam to the FRP mill, meeting the majority of the mill's steam demand and reducing or eliminating the need for the existing biomass/coal-fired boiler. The biorefinery would also include a steam turbine generator that will produce "green" electrical power for use by the biorefinery or for sale to the electric utility.

  15. Feed Processing, Handling, and Gasification

    SciTech Connect (OSTI)

    2006-04-01

    Both current and future sugar biorefineries will generate a wide variety of residue streams that can be used as feedstocks for thermochemical processes, including corn stover, corn fiber, lignin-rich materials, and distillers’ dried grain and solubles.

  16. Biomass Biorefinery for the production of Polymers and Fuels

    SciTech Connect (OSTI)

    Dr. Oliver P. Peoples

    2008-05-05

    The conversion of biomass crops to fuel is receiving considerable attention as a means to reduce our dependence on foreign oil imports and to meet future energy needs. Besides their use for fuel, biomass crops are an attractive vehicle for producing value added products such as biopolymers. Metabolix, Inc. of Cambridge proposes to develop methods for producing biodegradable polymers polyhydroxyalkanoates (PHAs) in green tissue plants as well as utilizating residual plant biomass after polymer extraction for fuel generation to offset the energy required for polymer extraction. The primary plant target is switchgrass, and backup targets are alfalfa and tobacco. The combined polymer and fuel production from the transgenic biomass crops establishes a biorefinery that has the potential to reduce the nation’s dependence on foreign oil imports for both the feedstocks and energy needed for plastic production. Concerns about the widespread use of transgenic crops and the grower’s ability to prevent the contamination of the surrounding environment with foreign genes will be addressed by incorporating and expanding on some of the latest plant biotechnology developed by the project partners of this proposal. This proposal also addresses extraction of PHAs from biomass, modification of PHAs so that they have suitable properties for large volume polymer applications, processing of the PHAs using conversion processes now practiced at large scale (e.g., to film, fiber, and molded parts), conversion of PHA polymers to chemical building blocks, and demonstration of the usefulness of PHAs in large volume applications. The biodegradability of PHAs can also help to reduce solid waste in our landfills. If successful, this program will reduce U.S. dependence on imported oil, as well as contribute jobs and revenue to the agricultural economy and reduce the overall emissions of carbon to the atmosphere.

  17. "Solvent Usage in Biorefineries Biphasic Dehydration of Xylose to Furfural" Maheen Khan

    E-Print Network [OSTI]

    Mountziaris, T. J.

    to replace THF in this process. Ideally, the solvent would be produced from the biomass as part of an integrated biorefinery. Therefore not relying on external petrochemical supplies and utilizing he renewable of separating the solvent from the furfural. In addition, in the current process the aqueous phase is saturated

  18. Breaking the Chemical and Engineering Barriers to Lignocellulosic Biofuels: Next Generation Hydroccarbon Biorefineries

    SciTech Connect (OSTI)

    none,

    2008-03-01

    This roadmap to “Next Generation Hydrocarbon Biorefineries” outlines a number of novel process pathways for biofuels production based on sound scientific and engineering proofs of concept demonstrated in laboratories around the world. This report was based on the workshop of the same name held June 25-26, 2007 in Washington, DC.

  19. EA-1865: Department of Energy Loan Guarantee to Kior, Inc., for Biorefinery Facilities in Georgia, Mississippi, and Texas

    Broader source: Energy.gov [DOE]

    This EA will evaluate the environmental impacts of a proposal to issue a Federal loan guarantee to Kior, Inc., for biorefinery facilities in Georgia, Mississippi, and Texas. This EA is on hold.

  20. Steer Feeding

    E-Print Network [OSTI]

    Connel, J. H.; Carson, J. W.

    1896-01-01

    STATIONS. BULLETIN No. 41. DECEMBER, 1896. STEER FEEDING. POSTOFFICE: COLLEGE STATION, BRAZOS CO., TEXAS. All .Reports from this Station are sent free to farmers of the State on application to J. H. CONNELL, T E X A S G R X I P. O. College Station... to the solution of those problems that affect the welfare of the cattle interests, because it is agreed that this is now the primary livestock investment of the State. Economy in method of beef production lends value and shows a profit finally to the breeder...

  1. Steer Feeding

    E-Print Network [OSTI]

    Burns, John C,

    1913-01-01

    they were fed, it is nevertheless,, a point of much importance from the fact that it very likely had much to do with the somewhat greater gains they made as well as the much- greater shrinkage they sustained in shipment to market. Weather conditions were... :30 a. m., March 6th. In order to ascertain the shrinkage that had occurred since the final weights at College Station, each lot was weighed before receiving water or feed, the weighing being done at 11 a. m. The shrinkage is shown in the following...

  2. RSS Feed

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) by Carbon-RichProton Delivery andInnovationsRSS Feed Los Alamos National

  3. Development of efficient, integrated cellulosic biorefineries : LDRD final report.

    SciTech Connect (OSTI)

    Teh, Kwee-Yan; Hecht, Ethan S.; Shaddix, Christopher R.; Buffleben, George M.; Dibble, Dean C.; Lutz, Andrew E.

    2010-09-01

    Cellulosic ethanol, generated from lignocellulosic biomass sources such as grasses and trees, is a promising alternative to conventional starch- and sugar-based ethanol production in terms of potential production quantities, CO{sub 2} impact, and economic competitiveness. In addition, cellulosic ethanol can be generated (at least in principle) without competing with food production. However, approximately 1/3 of the lignocellulosic biomass material (including all of the lignin) cannot be converted to ethanol through biochemical means and must be extracted at some point in the biochemical process. In this project we gathered basic information on the prospects for utilizing this lignin residue material in thermochemical conversion processes to improve the overall energy efficiency or liquid fuel production capacity of cellulosic biorefineries. Two existing pretreatment approaches, soaking in aqueous ammonia (SAA) and the Arkenol (strong sulfuric acid) process, were implemented at Sandia and used to generated suitable quantities of residue material from corn stover and eucalyptus feedstocks for subsequent thermochemical research. A third, novel technique, using ionic liquids (IL) was investigated by Sandia researchers at the Joint Bioenergy Institute (JBEI), but was not successful in isolating sufficient lignin residue. Additional residue material for thermochemical research was supplied from the dilute-acid simultaneous saccharification/fermentation (SSF) pilot-scale process at the National Renewable Energy Laboratory (NREL). The high-temperature volatiles yields of the different residues were measured, as were the char combustion reactivities. The residue chars showed slightly lower reactivity than raw biomass char, except for the SSF residue, which had substantially lower reactivity. Exergy analysis was applied to the NREL standard process design model for thermochemical ethanol production and from a prototypical dedicated biochemical process, with process data supplied by a recent report from the National Research Council (NRC). The thermochemical system analysis revealed that most of the system inefficiency is associated with the gasification process and subsequent tar reforming step. For the biochemical process, the steam generation from residue combustion, providing the requisite heating for the conventional pretreatment and alcohol distillation processes, was shown to dominate the exergy loss. An overall energy balance with different potential distillation energy requirements shows that as much as 30% of the biomass energy content may be available in the future as a feedstock for thermochemical production of liquid fuels.

  4. Identification and genetic characterization of maize cell wall variation for improved biorefinery feedstock characteristics

    SciTech Connect (OSTI)

    Pauly, Markus [UC Berkeley] [UC Berkeley; Hake, Sarah [USDA Albany] [USDA Albany

    2013-10-31

    The objectives of this program are to 1) characterize novel maize mutants with altered cell walls for enhanced biorefinery characteristics and 2) find quantitative trait loci (QTLs) related to biorefinery characteristics by taking advantage of the genetic diversity of maize. As a result a novel non-transgenic maize plant (cal1) has been identified, whose stover (leaves and stalk) contain more glucan in their walls leading to a higher saccharification yield, when subjected to a standard enzymatic digestion cocktail. Stacking this trait with altered lignin mutants yielded evene higher saccharification yields. Cal-1 mutants do not show a loss of kernel and or biomass yield when grown in the field . Hence, cal1 biomass provides an excellent feedstock for the biofuel industry.

  5. Optimization of Supply Chain Management and Facility Location Selection for a Biorefinery 

    E-Print Network [OSTI]

    Bowling, Ian Michael

    2012-02-14

    at the lowest cost. A case study in Sweden showed that biomass was best utilized as a pelletized coal substitute. Huber and Corma (2007) propose utilizing existing infrastructure and oil refineries to process biomass into higher valued chemicals and fuels... in the face of varying feedstock supply and cost. Also addressed is the optimization of a biorefinery supply chain with respect to distributed processing of biomass to bio-products via preprocessing hubs versus centralized processing and facility location...

  6. Simulating Pelletization Strategies to Reduce the Biomass Supply Risk at America’s Biorefineries

    SciTech Connect (OSTI)

    Jacob J. Jacobson; Shane Carnohan; Andrew Ford; Allyson Beall

    2014-07-01

    Demand for cellulosic ethanol and other advanced biofuels has been on the rise, due in part to federal targets enacted in 2005 and extended in 2007. The industry faces major challenges in meeting these worthwhile and ambitious targets. The challenges are especially severe in the logistics of timely feedstock delivery to biorefineries. Logistical difficulties arise from seasonal production that forces the biomass to be stored in uncontrolled field-side environments. In this storage format physical difficulties arise; transportation is hindered by the low bulk density of baled biomass and the unprotected material can decay leading to unpredictable losses. Additionally, uncertain yields and contractual difficulties can exacerbate these challenges making biorefineries a high-risk venture. Investors’ risk could limit business entry and prevent America from reaching the targets. This paper explores pelletizer strategies to convert the lignocellulosic biomass into a denser form more suitable for storage. The densification of biomass would reduce supply risks, and the new system would outperform conventional biorefinery supply systems. Pelletizer strategies exhibit somewhat higher costs, but the reduction in risk is well worth the extra cost if America is to grow the advanced biofuels industry in a sustainable manner.

  7. The Impact of Biomass Feedstock Supply Variability on the Delivered Price to a Biorefinery in the Peace River Region of Alberta, Canada

    SciTech Connect (OSTI)

    Stephen, Jamie [University of British Columbia, Vancouver; Sokhansanj, Shahabaddine [ORNL; Bi, X.T. [University of British Columbia, Vancouver; Sowlati, T. [University of British Columbia, Vancouver; Kloeck, T. [Alberta Agriculture; Townley-Smith, Lawrence [AAFC; Stumborg, Mark [AAFC

    2010-01-01

    Agricultural residue feedstock availability in a given region can vary significantly over the 20 25 year lifetime of a biorefinery. Since delivered price of biomass feedstock to a biorefinery is related to the distance travelled and equipment optimization, and transportation distance increases as productivity decreases, productivity is a primary determinant of feedstock price. Using the Integrated Biomass Supply Analysis and Logistics (IBSAL) modeling environment and a standard round bale harvest and delivery scenario, harvest and delivery price were modelled for minimum, average, and maximum yields at four potential biorefinery sites in the Peace River region of Alberta, Canada. Biorefinery capacities ranged from 50,000 to 500,000 tonnes per year. Delivery cost is a linear function of transportation distance and can be combined with a polynomial harvest function to create a generalized delivered cost function for agricultural residues. The range in delivered cost is substantial and is an important consideration for the operating costs of a biorefinery.

  8. Controlling Accumulation of Fermentation Inhibitors in Biorefinery Recycle Water Using Microbial Fuel Cells

    SciTech Connect (OSTI)

    Borole, Abhijeet P [ORNL; Mielenz, Jonathan R [ORNL; Leak, David [Imperial College, London; Vishnivetskaya, Tatiana A [ORNL; Hamilton, Choo Yieng [ORNL; Andras, Calin [Imperial College, London

    2009-01-01

    Background Microbial fuel cells (MFC) and microbial electrolysis cells are electrical devices that treat water using microorganisms and convert soluble organic matter into electricity and hydrogen, respectively. Emerging cellulosic biorefineries are expected to use large amounts of water during production of ethanol. Pretreatment of cellulosic biomass results in production of fermentation inhibitors which accumulate in process water and make the water recycle process difficult. Use of MFCs to remove the inhibitory sugar and lignin degradation products from recycle water is investigated in this study. Results Use of an MFC to reduce the levels of furfural, 5-hydroxymethylfurfural, vanillic acid, 4- hydroxybenzaldehyde and 4-hydroxyacetophenone while simultaneously producing electricity is demonstrated here. An integrated MFC design approach was used which resulted in high power densities for the MFC, reaching up to 3700mW/m2 (356W/m3 net anode volume) and a coulombic efficiency of 69%. The exoelectrogenic microbial consortium enriched in the anode was characterized using a 16S rRNA clone library method. A unique exoelectrogenic microbial consortium dominated by -Proteobacteria (50%), along with -Proteobacteria (28%), -Proteobacteria (14%), -Proteobacteria (6%) and others was identified. The consortium demonstrated broad substrate specificity, ability to handle high inhibitor concentrations (5 to 20mM) with near complete removal, while maintaining long-term stability with respect to power production. Conclusions Use of MFCs for removing fermentation inhibitors has implications for: 1) enabling higher ethanol yields at high biomass loading in cellulosic ethanol biorefineries, 2) improved water recycle and 3) electricity production up to 25% of total biorefinery power needs.

  9. EA-1888: Old Town Fuel and Fiber Proposed Demonstration-Scale Integrated Biorefinery in Old Town, Maine

    Broader source: Energy.gov [DOE]

    This EA evaluates the environmental impacts of a proposal by Old Town Fuel and Fiber to install and operate a demonstration-scale integrated biorefinery at their existing pulp mill in Old Town, Maine, demonstrating the production of n-butanol from lignocellulosic (wood) extract.

  10. Experiments in Steer Feeding

    E-Print Network [OSTI]

    Craig, John A. (John Alexander); Marshall, F. R. (Frederick Rupert)

    1904-01-01

    as to the relative value of these two very characteristic rations for steer feeding. Cotton? seed meal and hulls is the ration that is most generally used throughout the cotton belt, while corn and alfalfa will likely be conceded to be the ration which is most... STATIONS. BULLETIN NO. 76. Animal Husbandry Section. T E X A S G R S I C 1904. EXPERIMENTS IN STEER FEEDING I. RICE BY-PRODUCTS FOR STEER FEEDING. II. FODDERS FOR FEEDING STEERS WITH COTTONSEED MEAL. III. MOLASSES FOR STEER FEEDING. IV. COMPARISON...

  11. Mixed feed evaporator

    DOE Patents [OSTI]

    Vakil, Himanshu B. (Schenectady, NY); Kosky, Philip G. (Ballston Lake, NY)

    1982-01-01

    In the preparation of the gaseous reactant feed to undergo a chemical reaction requiring the presence of steam, the efficiency of overall power utilization is improved by premixing the gaseous reactant feed with water and then heating to evaporate the water in the presence of the gaseous reactant feed, the heating fluid utilized being at a temperature below the boiling point of water at the pressure in the volume where the evaporation occurs.

  12. Integration of Biorefineries and Nuclear Cogeneration Power Plants - A Preliminary Analysis

    SciTech Connect (OSTI)

    Greene, Sherrell R; Flanagan, George F; Borole, Abhijeet P

    2009-03-01

    Biomass-based ethanol and nuclear power are two viable elements in the path to U.S. energy independence. Numerous studies suggest nuclear power could provide a practical carbon-free heat source alternative for the production of biomass-based ethanol. In order for this coupling to occur, it is necessary to examine the interfacial requirements of both nuclear power plants and bioethanol refineries. This report describes the proposed characteristics of a small cogeneration nuclear power plant, a biochemical process-based cellulosic bioethanol refinery, and a thermochemical process-based cellulosic biorefinery. Systemic and interfacial issues relating to the co-location of either type of bioethanol facility with a nuclear power plant are presented and discussed. Results indicate future co-location efforts will require a new optimized energy strategy focused on overcoming the interfacial challenges identified in the report.

  13. Integrated Biorefinery Project: Cooperative Research and Development Final Report, CRADA Number CRD-10-390

    SciTech Connect (OSTI)

    Chapeaux, A.; Schell, D.

    2013-06-01

    The Amyris-NREL CRADA is a sub-project of Amyris?s DOE-funded pilot-scale Integrated Biorefinery (IBR). The primary product of the Amyris IBR is Amyris Renewable Diesel. Secondary products will include lubricants, polymers and other petro-chemical substitutes. Amyris and its project partners will execute on a rapid project to integrate and leverage their collective expertise to enable the conversion of high-impact biomass feedstocks to these advanced, infrastructure-compatible products. The scope of the Amyris-NREL CRADA includes the laboratory development and pilot scale-up of bagasse pretreatment and enzymatic saccharification conditions by NREL for subsequent conversion of lignocellulosic sugar streams to Amyris Diesel and chemical products by Amyris. The CRADA scope also includes a techno-economic analysis of the overall production process of Amyris products from high-impact biomass feedstocks.

  14. HETEROGENEOUS CATALYSIS RESEARCH MEETING

    E-Print Network [OSTI]

    Authors, Various

    2011-01-01

    synthesis gas by coal gasification is very expensive andin the cost of coal gasification would have a significantthe feed derived from coal gasi.fication. To establish the

  15. Biomass Feed and Gasification

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

    conventional oil refining. Activities support research for handling and processing of coal-biomass mixtures, ensuring those mixtures are compatible with feed delivery systems,...

  16. Commercial Feedings Stuffs 1913: Feed Law. 

    E-Print Network [OSTI]

    Youngblood, B.

    1914-01-01

    EXPERIMENT STATION B u l l e t in Bul eti A p r i l , 1914 FEED CONTROL SERVICE Commercial Feeding Stuffs 1913 FEED LAW nAprA,,E.Hs .uLLJaJ pRTRSuWm KyTouP .uCWRhm rJgTPl 3AB KA0.0OMBBIFABHp .Alm ndEBrHdpm MfprEBm rH1Mp AGRICULTURAL AND MECHANICAL... COLLEGE OF TEXAS . 9 T y L J P n C y h J T y m President Pro Tern. rH1Mp M4dE.fxrfdMx H1nHdEOHBr prMrEAB BOARD OF DIRECTORS Hl Kl . CP9SWam Presidentm GuCPRuWllll lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll r...

  17. Feeding Values of Certain Feeding Stuffs. 

    E-Print Network [OSTI]

    Fraps, G. S. (George Stronach)

    1919-01-01

    , average (16) ...................... Peanut hulls, some meat, average (4). ..................... Table 2.-Composition and feeding value-Continued. Lab. No. .......................... Peanut ha), no nuts, D. E. 87 ......................... Peanut hay... no nuts average g) ................... Peanut mezh 5 per 'cknt fiber, . E. 96. ................................. Prairie hay D. E 85-86. .......................... Prairie hal: exa as average (10). ................................... R!ce bran, D...

  18. Conversion of residual organics in corn stover-derived biorefinery stream to bioenergy via microbial fuel cell

    SciTech Connect (OSTI)

    Borole, Abhijeet P; Hamilton, Choo Yieng; Schell, Daniel J

    2012-01-01

    A biorefinery process typically uses about 4-10 times as much water as the amount of biofuel generated. The wastewater produced in a biorefinery process contains residual sugars, 5-furfural, phenolics, and other pretreatment and fermentation byproducts. Treatment of the wastewater can reduce the need for fresh water and potentially add to the environmental benefits of the process. Use of microbial fuel cells (MFCs) for conversion of the various organics present in a post-fermentation biorefinery stream is reported here. The organic loading was varied over a wide range to assess removal efficiency, coulombic efficiency and power production. A coulombic efficiency of 40% was observed for a low loading of 1% (0.66 g/L) and decreased to 1.8% for the undiluted process stream (66.4 g/L organic loading). A maximum power density of 1180 mW/m2 was observed at a loading of 8%. Excessive loading was found to result in poor electrogenic performance. The results indicate that operation of an MFC at an intermediate loading using dilution and recirculation of the process stream can enable effective treatment with bioenergy recovery.

  19. Tomographic Characterization of Aquifer Heterogeneity

    E-Print Network [OSTI]

    Lyle, Shane

    2011-05-31

    ............................................................................................................................................ 26 Pumped Hydraulic Source – Monitoring Wells .................................................................................. 27 Pneumatic Source – Geoprobe... ......................................................................................................................................................... 96 Lateral Heterogeneity – Pumped Hydraulic CPT Source........................................................................ 97 Lateral Heterogeneity – Pneumatic CPT Source...

  20. Alpena Biorefinery

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based Fuels Research at NRELDepartmentJune 2,2-13) All Other* * *Alpena

  1. Coal feed lock

    DOE Patents [OSTI]

    Pinkel, I. Irving (Fairview Park, OH)

    1978-01-01

    A coal feed lock is provided for dispensing coal to a high pressure gas producer with nominal loss of high pressure gas. The coal feed lock comprises a rotor member with a diametral bore therethrough. A hydraulically activated piston is slidably mounted in the bore. With the feed lock in a charging position, coal is delivered to the bore and then the rotor member is rotated to a discharging position so as to communicate with the gas producer. The piston pushes the coal into the gas producer. The rotor member is then rotated to the charging position to receive the next load of coal.

  2. Feed-in-Tariff

    Broader source: Energy.gov [DOE]

    Note: In August of 2013 the Hawaii Public Utility Commission (PUC) initiated an investigation into the Feed-In-Tariff Program in Docket No. 2013-0194. On December 5th, 2014 the Hawaii PUC issued...

  3. Subscribe to RSS Feeds

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Building Technologies Office RSS (real simple syndication) feed tracks news from the Department of Energy (DOE) and other sources, making it convenient and easy to stay up-to-date with the...

  4. Fully Integrated Lignocellulosic Biorefinery with Onsite Production of Enzymes and Yeast

    SciTech Connect (OSTI)

    Manoj Kumar, PhD

    2010-06-14

    Lignocellulosic biomass is the most abundant, least expensive renewable natural biological resource for the production of biobased products and bioenergy is important for the sustainable development of human civilization in 21st century. For making the fermentable sugars from lignocellulosic biomass, a reduction in cellulase production cost, an improvement in cellulase performance, and an increase in sugar yields are all vital to reduce the processing costs of biorefineries. Improvements in specific cellulase activities for non-complexed cellulase mixtures can be implemented through cellulase engineering based on rational design or directed evolution for each cellulase component enzyme, as well as on the reconstitution of cellulase components. In this paper, we will provide DSM's efforts in cellulase research and developments and focus on limitations. Cellulase improvement strategies based on directed evolution using screening on relevant substrates, screening for higher thermal tolerance based on activity screening approaches such as continuous culture using insoluble cellulosic substrates as a powerful selection tool for enriching beneficial cellulase mutants from the large library. We will illustrate why and how thermostable cellulases are vital for economic delivery of bioproducts from cellulosic biomass using biochemical conversion approach.

  5. Vertical Integration of Biomass Saccharification of Enzymes for Sustainable Cellulosic Biofuel Production in a Biorefinery

    SciTech Connect (OSTI)

    Manoj Kumar, PhD

    2011-05-09

    Lignocellulosic biomass is the most abundant, least expensive renewable natural biological resource for the production of biobased products and bioenergy is important for the sustainable development of human civilization in 21st century. For making the fermentable sugars from lignocellulosic biomass, a reduction in cellulase production cost, an improvement in cellulase performance, and an increase in sugar yields are all vital to reduce the processing costs of biorefineries. Improvements in specific cellulase activities for non-complexed cellulase mixtures can be implemented through cellulase engineering based on rational design or directed evolution for each cellulase component enzyme, as well as on the reconstitution of cellulase components. In this paper, we will provide DSM's efforts in cellulase research and developments and focus on limitations. Cellulase improvement strategies based on directed evolution using screening on relevant substrates, screening for higher thermal tolerance based on activity screening approaches such as continuous culture using insoluble cellulosic substrates as a powerful selection tool for enriching beneficial cellulase mutants from the large library. We will illustrate why and how thermostable cellulases are vital for economic delivery of bioproducts from cellulosic biomass using biochemical conversion approach.

  6. Integrated cellulosic enzymes hydrolysis and fermentative advanced yeast bioconversion solution ready for biomass biorefineries

    SciTech Connect (OSTI)

    Manoj Kumar, PhD

    2011-05-04

    Lignocellulosic biomass is the most abundant, least expensive renewable natural biological resource for the production of biobased products and bioenergy is important for the sustainable development of human civilization in 21st century. For making the fermentable sugars from lignocellulosic biomass, a reduction in cellulase production cost, an improvement in cellulase performance, and an increase in sugar yields are all vital to reduce the processing costs of biorefineries. Improvements in specific cellulase activities for non-complexed cellulase mixtures can be implemented through cellulase engineering based on rational design or directed evolution for each cellulase component enzyme, as well as on the reconstitution of cellulase components. In this paper, we will provide DSM's efforts in cellulase research and developments and focus on limitations. Cellulase improvement strategies based on directed evolution using screening on relevant substrates, screening for higher thermal tolerance based on activity screening approaches such as continuous culture using insoluble cellulosic substrates as a powerful selection tool for enriching beneficial cellulase mutants from the large library. We will illustrate why and how thermostable cellulases are vital for economic delivery of bioproducts from cellulosic biomass using biochemical conversion approach.

  7. Commercial Feedings Stuffs. 

    E-Print Network [OSTI]

    Boyett, W. L.; Fraps; G. S.

    1912-01-01

    . . . . . . . . 16.21 2.10 26.54 38.40 7.22 9.29 1 Sarley Chops _______ ._ . . _ . 11.25 2.01 5.92 64.93 13.24 2.65 245 OOrn Chops - - - - - - - - 9.23 3.S5 2.32 70.97 12.82 1.37 13 Corn Bran - - _____ _ _______ 9.35 6.09 8.44 63.85 12.46 1.97 4 Corn Feed... D airy Feed?Guarantee---------------- M anu facturer ? s Sample ------- -------- 16.50 18.56 3.50 5.07 12.00 11.76 46.00 44.65 123 W . Inspection Sample ------- ---------------- 16.09 4.10 11.27 49.9: Am co Chick Feed...

  8. Top Value-Added Chemicals from Biomass - Volume II—Results of Screening for Potential Candidates from Biorefinery Lignin

    SciTech Connect (OSTI)

    Holladay, John E.; White, James F.; Bozell, Joseph J.; Johnson, David

    2007-10-01

    This report evaluates lignin’s role as a renewable raw material resource. Opportunities that arise from utilizing lignin fit into one of three categories: 1)power, fuel and syngas (generally near-term opportunities) 2) macromolecules (generally medium-term opportunities) 3) aromatics and miscellaneous monomers (long-term opportunities). Biorefineries will receive and process massive amounts of lignin. For this reason, how lignin can be best used to support the economic health of the biorefinery must be defined. An approach that only considers process heat would be shortsighted. Higher value products present economic opportunities and the potential to significantly increase the amount of liquid transportation fuel available from biomass. In this analysis a list of potential uses of lignin was compiled and sorted into “product types” which are broad classifications (listed above as power—fuel—syngas; macromolecules; and aromatics). In the first “product type” (power—fuel—gasification) lignin is used purely as a carbon source and aggressive means are employed to break down its polymeric structure. In the second “product type” (macromolecules) the opposite extreme is considered and advantage of the macromolecular structure imparted by nature is retained in high-molecular weight applications. The third “product type” (aromatics) lies somewhere between the two extremes and employs technologies that would break up lignin’s macromolecular structure but maintain the aromatic nature of the building block molecules. The individual opportunities were evaluated based on their technical difficulty, market, market risk, building block utility, and whether a pure material or a mixture would be produced. Unlike the “Sugars Top 10” report it was difficult to identify the ten best opportunities, however, the potential opportunities fell nicely into near-, medium- and long-term opportunities. Furthermore, the near-, medium- and long-term opportunities roughly align with the three “product types.” From this analysis a list of technical barriers was developed which can be used to identify research needs. Lignin presents many challenges for use in the biorefinery. Chemically it differs from sugars having a complex aromatic substructure. Unlike cellulose, which has a relatively simple substructure of glucose subunits, lignin has a high degree of variability in its structure which differs both from biomass source and from the recovery process used. In addition to its variability lignin is also reactive and to some degree less stable thermally and oxidatively to other biomass streams. What this means is that integrating a lignin process stream within the biorefinery will require identifying the best method to separate lignin from biomass cost-effectively.

  9. Sustainable and efficient pathways for bioenergy recovery from low-value process streams via bioelectrochemical systems in biorefineries

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

    Borole, Abhijeet P.

    2015-01-01

    Conversion of biomass into bioenergy is possible via multiple pathways resulting in production of biofuels, bioproducts and biopower. Efficient and sustainable conversion of biomass, however, requires consideration of many environmental and societal parameters in order to minimize negative impacts. Integration of multiple conversion technologies and inclusion of upcoming alternatives such as bioelectrochemical systems can minimize these impacts and improve conservation of resources such as hydrogen, water and nutrients via recycle and reuse. This report outlines alternate pathways integrating microbial electrolysis in biorefinery schemes to improve energy efficiency while evaluating environmental sustainability parameters.

  10. Recovery Act. Demonstration of a Pilot Integrated Biorefinery for the Efficient, Direct Conversion of Biomass to Diesel Fuel

    SciTech Connect (OSTI)

    Schuetzle, Dennis; Tamblyn, Greg; Caldwell, Matt; Hanbury, Orion; Schuetzle, Robert; Rodriguez, Ramer; Johnson, Alex; Deichert, Fred; Jorgensen, Roger; Struble, Doug

    2015-05-12

    The Renewable Energy Institute International, in collaboration with Greyrock Energy and Red Lion Bio-Energy (RLB) has successfully demonstrated operation of a 25 ton per day (tpd) nameplate capacity, pilot, pre-commercial-scale integrated biorefinery (IBR) plant for the direct production of premium, “drop-in”, synthetic fuels from agriculture and forest waste feedstocks using next-generation thermochemical and catalytic conversion technologies. The IBR plant was built and tested at the Energy Center, which is located in the University of Toledo Medical Campus in Toledo, Ohio.

  11. Hog Feeding Experiments. 

    E-Print Network [OSTI]

    Burns, John C.

    1910-01-01

    ................................................................................. ~eriment,s Nos. 111 and IV 17 I ...................................................................................... ,,,,proved Hogs vs. Scrubs 19 I Corn vs. Rice Bran vs. Spanish Peanuts ........................................................... 22... 1 ! .................................................................................................................. Summary. 33 I I [Blank Page in Original Bulletin] HOG FEEDING EXPERIMENTS. BY JOHN C. BURNS, DEPARTMENT OF ANIMAL...

  12. Web Feeds and Repositories

    E-Print Network [OSTI]

    Downing, Jim

    2008-12-09

    ="http://example.org/2003/12/13/atom03"/> urn:uuid:1225c695-cfb8-4ebb-aaaa-80da344efa6a 2003-12-13T18:30:02Z Some text. Subscription Feed

  13. Feeding & Risering Guidelines for

    E-Print Network [OSTI]

    Beckermann, Christoph

    radiographically sound to ASTM shrinkage x-ray level 5. Casting conditions (alloy composition, mold materialFeeding & Risering Guidelines for Steel Castings Steel Founders' Society of America 2001 #12;Index..................................................................................................................................10 4 Casting soundness in terms of riser and end zones

  14. Feeding mechanisms & foraging ecology

    E-Print Network [OSTI]

    Dever, Jennifer A.

    . Terrestrial ­ air less dense, must support food items l Akinetic skull l Kinetic skull II. Prey Capture in an aquatic environment v. a terrestrial one... A. Aquatic ­ lack of need for supporting food items due Snapping turtle - Chelydra serpentina combination of chewing and sucking B. Terrestrial Feeding Biting

  15. Sugar-Based Ethanol Biorefinery: Ethanol, Succinic Acid and By-Product Production

    SciTech Connect (OSTI)

    Donal F. Day

    2009-03-31

    The work conducted in this project is an extension of the developments itemized in DE-FG-36-04GO14236. This program is designed to help the development of a biorefinery based around a raw sugar mill, which in Louisiana is an underutilized asset. Some technical questions were answered regarding the addition of a biomass to ethanol facility to existing sugar mills. The focus of this work is on developing technology to produce ethanol and valuable by-products from bagasse. Three major areas are addressed, feedstock storage, potential by-products and the technology for producing ethanol from dilute ammonia pre-treated bagasse. Sugar mills normally store bagasse in a simple pile. During the off season there is a natural degradation of the bagasse, due to the composting action of microorganisms in the pile. This has serious implications if bagasse must be stored to operate a bagasse/biorefinery for a 300+ day operating cycle. Deterioration of the fermentables in bagasse was found to be 6.5% per month, on pile storage. This indicates that long term storage of adequate amounts of bagasse for year-round operation is probably not feasible. Lignin from pretreatment seemed to offer a potential source of valuable by-products. Although a wide range of phenolic compounds were present in the effluent from dilute ammonia pretreatment, the concentrations of each (except for benzoic acid) were too low to consider for extraction. The cellulosic hydrolysis system was modified to produce commercially recoverable quantities of cellobiose, which has a small but growing market in the food process industries. A spin-off of this led to the production of a specific oligosaccharide which appears to have both medical and commercial implications as a fungal growth inhibitor. An alternate use of sugars produced from biomass hydrolysis would be to produce succinic acid as a chemical feedstock for other conversions. An organism was developed which can do this bioconversion, but the economics of succinic acid production were such that it could not compete with current commercial practice. To allow recovery of commercial amounts of ethanol from bagasse fermentation, research was conducted on high solids loading fermentations (using S. cerevisiae) with commercial cellulase on pretreated material. A combination of SHF/SSF treatment with fed-batch operation allowed fermentation at 30% solids loading. Supplementation of the fermentation with a small amount of black-strap molasses had results beyond expectation. There was an enhancement of conversion as well as production of ethanol levels above 6.0% w/w, which is required both for efficient distillation as well as contaminant repression. The focus of fermentation development was only on converting the cellulose to ethanol, as this yeast is not capable of fermenting both glucose and xylose (from hemicellulose). In anticipation of the future development of such an organism, we screened the commercially available xylanases to find the optimum mix for conversion of both cellulose and hemicellulose. A different mixture than the spezyme/novozyme mix used in our fermentation research was found to be more efficient at converting both cellulose and hemicellulose. Efforts were made to select a mutant of Pichia stipitis for ability to co-ferment glucose and xylose to ethanol. New mutation technology was developed, but an appropriate mutant has not yet been isolated. The ability to convert to stillage from biomass fermentations were determined to be suitable for anaerobic degradation and methane production. An economic model of a current sugar factory was developed in order to provide a baseline for the cost/benefit analysis of adding cellulosic ethanol production.

  16. Computer controlled feed delivery system for feed trucks 

    E-Print Network [OSTI]

    Holt, Gregory Alan

    1989-01-01

    COMPUTER CONTROLLED FEED DELIVERY SYSTEM FOR FEED TRUCKS A Thesis by GREGORY ALAN HOLT Submitted to the Office of Graduate Studies of Texas ABM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August... 1989 Major Subject: Agricultural Engineering COMPIJIER CONTROLLED FEED DELIVERY SYSTEM FOR FEED TRUCKS A Thesis by GREGORY ALAN HOLT Approved as to style and content by: Calvin B. Parnell (Chair of Committee) ayne LePori (Member) Charlie G...

  17. Handleiding Import & Export RSS Feeds

    E-Print Network [OSTI]

    Galis, Frietson

    Handleiding Import & Export RSS Feeds Version: 1.0 RSS Feeds Date: 17-04-2013 #12;2 Exporteren RSS bestand. 1) Selecteer "Import and export.." 2) Selecteer "Export to a file" en vervolgens "Next" #12;3 3) Selecteer "Feeds" en vervolgens "Next" 4) Selecteer "Export" Wanneer u geen locatie opgeeft, zal Internet

  18. Commercial Feeding Stuffs 

    E-Print Network [OSTI]

    Carson, J.W.; Fraps, G. S. (George Stronach)

    1911-01-01

    , protein is, on the average, about as cheap as f at-producing power. TABLE IV. Relative Cost of Nutrients. Selling Price Per Ton. Cotton Seed Meal ............................................... Wheat Shorts... on the tag. ,This bula letin contains a discussion of these matters. Other informatian wili be cheerfully furnished when requested. The consumer of feeding stuffs should learn to utilize them to the greatest advantage and in the most economical manner...

  19. Farm Feed Processing. 

    E-Print Network [OSTI]

    Allen, W. S.; Sorenson, J. W.; McCune, W. E.

    1961-01-01

    PLANNING- A DESI-N , s ~IiABY mUMENTS DNISfOH A & M COUEGE Of TOW CWfGE STATN)N, ; l- \\.~i - MECHANIZATION OF FEED processing and handling oper- ations should be approached with caution. Mechanization is justified for one or more of the following..../hr. 'peed from HP per 10 Trn horizontal, o ft. length Wheat Oats Cornlneal Angle Approximate Maximum capacit!., Speed from HPper10 bu. / hr. 1 rpm horizontal, O ft. length Wheat Oats Cornmeal I Capacities are interpolated from several sources...

  20. Feeding Baby Beeves. 

    E-Print Network [OSTI]

    Burns, John C.

    1916-01-01

    of calves for the market, or, in other words, the procluction of %aby beef." 2. To compare cotton seed meal, cold-pressed cotton seed, and peanut meal for supplementing a ration composed of ground milo, corn or- . I sorghum silage, and Sudan hap... seed, ground milo, corn silage, and Sudan hajr. There was no trouble whatever in getting then1 on feed. ifter the first few days they were fed a11 the roughage (silage and hay) hev wo~~lil eat, hut the amount of concentrates (cake and milo) wac ~ept...

  1. Feeding experiment no. 2 

    E-Print Network [OSTI]

    Gulley, F. A. (Frank Arthur); Carson, J. W.

    1890-01-01

    raw and cooked, cotton seed hulls, cotton geed meal, and silage. The results showed that range steers may be dehorned and fed loose under a shed, crowded together like sheep, successfully, and that cost of certain food consumed is much less than... increased value of steers from gains made in weight at selling prices of food and steers. In regard to comparative results from different feed-stuffs, silage and cot- ton seed hulls for ro'ughness, and cooked cotton seed and cotton meal, with or without...

  2. NETL: Feed Systems

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on771/6/14 Contact: Janet Lambert4 FLCNETL-ORD4 NETL ORD -CloselyFeed

  3. Nutrient Composition of Feeds

    E-Print Network [OSTI]

    Gill, Ronald J.; Herd, Dennis B.

    1986-01-01

    .88-0.96 Figure 2. Variation In energy content of various forages relative to the requirements of various classes of caHie (values given on a dry maHer basis). D.E. Mcal./lba DDM%b 1.61 80 1.50 75 1.40 70 1.29 65 Weaned Heiler... Ingredient Ana~sls Tables (Adapted from NR , 1984). Forages (Dry MaHer Basis) Vit.A ME TDN CP Ca p Equiv./lb Feed Name Description* (Mcal/lb) (%) (%) (%) (%) 1000 IU Alfalfa SC- EB .98 60 18.0 1.41 .22 25.5 SC- MB .95 58 17.0 1.41 .24 6.0 SC- LB .85 52...

  4. Multiple feed powder splitter

    DOE Patents [OSTI]

    Lewis, Gary K. (Los Alamos, NM); Less, Richard M. (Los Alamos, NM)

    2002-01-01

    A device for providing uniform powder flow to the nozzles when creating solid structures using a solid fabrication system such as the directed light fabrication (DLF) process. In the DLF process, gas entrained powders are passed through the focal point of a moving high-power laser light which fuses the particles in the powder to a surface being built up in layers. The invention is a device providing uniform flow of gas entrained powders to the nozzles of the DLF system. The device comprises a series of modular splitters which are slidably interconnected and contain an integral flow control mechanism. The device can take the gas entrained powder from between one to four hoppers and split the flow into eight tubular lines which feed the powder delivery nozzles of the DLF system.

  5. Multiple feed powder splitter

    DOE Patents [OSTI]

    Lewis, Gary K. (Los Alamos, NM); Less, Richard M. (Los Alamos, NM)

    2001-01-01

    A device for providing uniform powder flow to the nozzles when creating solid structures using a solid fabrication system such as the directed light fabrication (DLF) process. In the DLF process, gas entrained powders are passed through the focal point of a moving high-power laser light which fuses the particles in the powder to a surface being built up in layers. The invention is a device providing uniform flow of gas entrained powders to the nozzles of the DLF system. The device comprises a series of modular splitters which are slidably interconnected and contain an integral flow control mechanism. The device can take the gas entrained powder from between one to four hoppers and split the flow into eight tubular lines which feed the powder delivery nozzles of the DLF system.

  6. Strategic supply system design - a holistic evaluation of operational and production cost for a biorefinery supply chain: Strategic biorefinery feedstock supply system design

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

    Lamers, Patrick; Tan, Eric C.D.; Searcy, Erin M.; Scarlata, Christopher J.; Cafferty, Kara G.; Jacobson, Jacob J.

    2015-08-20

    Pioneer cellulosic biore? neries across the United States rely on a conventional feedstock sup-ply system based on one-year contracts with local growers, who harvest, locally store, and deliver feed-stock in low-density format to the conversion facility. While the conventional system is designed for high biomass yield areas, pilot scale operations have experienced feedstock supply shortages and price volatilities due to reduced harvests and competition from other industries. Regional supply depend-ency and the inability to actively manage feedstock stability and quality, provide operational risks to the biore? nery, which translate into higher investment risk. The advanced feedstock supply system based onmore »a network of depots can mitigate many of these risks and enable wider supply system bene? ts. This paper compares the two concepts from a system-level perspective beyond mere logistic costs. It shows that while processing operations at the depot increase feedstock supply costs initially, they enable wider system bene? ts including supply risk reduction (leading to lower interest rates on loans), industry scale-up, conversion yield improvements, and reduced handling equipment and storage costs at the biore? nery. When translating these bene? ts into cost reductions per liter of gasoline equivalent (LGE), we ? nd that total cost reductions between –$0.46 to –$0.21 per LGE for biochemical and –$0.32 to –$0.12 per LGE for thermochemical conversion pathways are possible. Naturally, these system level bene? ts will differ between individual actors along the feedstock supply chain. Further research is required with respect to depot sizing, location, and ownership structures.« less

  7. Commercial Feeding Stuffs, 1916-17: Texas feed law. 

    E-Print Network [OSTI]

    Youngblood, B. (Bonney)

    1917-01-01

    ; (b) to refuse registration of I ny feeding stuff under a name which would be misleading as to the I aaterials of which it is made up, or which does not conform to the I tandards, names and definitions aforesaid, and (c) after ten days' lotice... on the tap: (1) Yumber of net pounds of feeding stuff the packacc; contains. (2 X;~me of feecling tuff, exactly as shown in regi~trat;~l~. (3) Namcc: of material of which such feed is composecl, where the contents are of a ri~jxecl nature. (4...

  8. Monitoring Feed Efficiency in Dairy Herds 

    E-Print Network [OSTI]

    Stokes, Sandra R.

    1999-04-26

    is preferred). Otherwise, the particle size of what the cows are actually con- suming will be reduced. Feed inventory: Even though feed is the single largest operating expense on dairies, few produc- ers track feed inventory closely to determine shrinkage... feeding management. Thus, although the ration may be fine ?on paper,? the ration the cows actually consume may be in- adequate. Tracking inventory can also aid in feed pricing. Feeds with high shrinkage should be discounted when determining their value...

  9. Portable performance on heterogeneous architectures

    E-Print Network [OSTI]

    Phothilimthana, Phitchaya Mangpo

    Trends in both consumer and high performance computing are bringing not only more cores, but also increased heterogeneity among the computational resources within a single machine. In many machines, one of the greatest ...

  10. NIPSCO- Feed-In Tariff

    Broader source: Energy.gov [DOE]

     NIPSCO is offering a feed-in tariff program for customers who generate electricity from solar, wind, biomass, or new hydroelectric facilities. All NIPSCO electric customers in good standing are...

  11. Reaction Selectivity in Heterogeneous Catalysis

    SciTech Connect (OSTI)

    Somorjai, Gabor A.; Kliewer, Christopher J.

    2009-02-02

    The understanding of selectivity in heterogeneous catalysis is of paramount importance to our society today. In this review we outline the current state of the art in research on selectivity in heterogeneous catalysis. Current in-situ surface science techniques have revealed several important features of catalytic selectivity. Sum frequency generation vibrational spectroscopy has shown us the importance of understanding the reaction intermediates and mechanism of a heterogeneous reaction, and can readily yield information as to the effect of temperature, pressure, catalyst geometry, surface promoters, and catalyst composition on the reaction mechanism. DFT calculations are quickly approaching the ability to assist in the interpretation of observed surface spectra, thereby making surface spectroscopy an even more powerful tool. HP-STM has revealed three vitally important parameters in heterogeneous selectivity: adsorbate mobility, catalyst mobility, and selective site-blocking. The development of size controlled nanoparticles from 0.8 to 10 nm, of controlled shape, and of controlled bimetallic composition has revealed several important variables for catalytic selectivity. Lastly, DFT calculations may be paving the way to guiding the composition choice for multi-metallic heterogeneous catalysis for the intelligent design of catalysts incorporating the many factors of selectivity we have learned.

  12. Renewal-anomalous-heterogeneous files

    E-Print Network [OSTI]

    Ophir Flomenbom

    2010-08-13

    Renewal-anomalous-heterogeneous files are solved. A simple file is made of Brownian hard spheres that diffuse stochastically in an effective 1D channel. Generally, Brownian files are heterogeneous: the spheres' diffusion coefficients are distributed and the initial spheres' density is non-uniform. In renewal-anomalous files, the distribution of waiting times for individual jumps is exponential as in Brownian files, yet obeys: {\\psi}_{\\alpha} (t)~t^(-1-{\\alpha}), 0renewal as all the particles attempt to jump at the same time. It is shown that the mean square displacement (MSD) in a renewal-anomalous-heterogeneous file, , obeys, ~[_{nrml}]^{\\alpha}, where _{nrml} is the MSD in the corresponding Brownian file. This scaling is an outcome of an exact relation (derived here) connecting probability density functions of Brownian files and renewal-anomalous files. It is also shown that non-renewal-anomalous files are slower than the corresponding renewal ones.

  13. Commercial Feeding Stuffs, 1915-16: Texas Feed Law. 

    E-Print Network [OSTI]

    Youngblood, B. (Bonney)

    1916-01-01

    !ation): College Station, Brazos A. H. LEIDIGH, B. S., Agronomist County Lours M7~~~~~~~~~~~~~, B. S.. Agrorio- T. M. REDDELL, Superinfendent mist G. F. JORDAN, I3. S., Scientific Assistant DIVISION OF PLANT PATHOLO(= y AND SUBSTATION NO- 11 : Nacogdoches... source of fat in case of a deficierlcy in carbohydrates and fat accom- paniecl bp excess of protein. It is,. however, a costly source of heat and fat. T7aPue of Protein: Protein is the most expensive portion of a feeding stuff, and feeding stuffs rich...

  14. Investigation of thermochemical biorefinery sizing and environmental sustainability impacts for conventional supply system and distributed pre-processing supply system designs

    SciTech Connect (OSTI)

    David J. Muth, Jr.; Matthew H. Langholtz; Eric C. D. Tan; Jacob J. Jacobson; Amy Schwab; May M. Wu; Andrew Argo; Craig C. Brandt; Kara G. Cafferty; Yi-Wen Chiu; Abhijit Dutta; Laurence M. Eaton; Erin M. Searcy

    2014-08-01

    The 2011 US Billion-Ton Update estimates that by 2030 there will be enough agricultural and forest resources to sustainably provide at least one billion dry tons of biomass annually, enough to displace approximately 30% of the country's current petroleum consumption. A portion of these resources are inaccessible at current cost targets with conventional feedstock supply systems because of their remoteness or low yields. Reliable analyses and projections of US biofuels production depend on assumptions about the supply system and biorefinery capacity, which, in turn, depend upon economic value, feedstock logistics, and sustainability. A cross-functional team has examined combinations of advances in feedstock supply systems and biorefinery capacities with rigorous design information, improved crop yield and agronomic practices, and improved estimates of sustainable biomass availability. A previous report on biochemical refinery capacity noted that under advanced feedstock logistic supply systems that include depots and pre-processing operations there are cost advantages that support larger biorefineries up to 10 000 DMT/day facilities compared to the smaller 2000 DMT/day facilities. This report focuses on analyzing conventional versus advanced depot biomass supply systems for a thermochemical conversion and refinery sizing based on woody biomass. The results of this analysis demonstrate that the economies of scale enabled by advanced logistics offsets much of the added logistics costs from additional depot processing and transportation, resulting in a small overall increase to the minimum ethanol selling price compared to the conventional logistic supply system. While the overall costs do increase slightly for the advanced logistic supply systems, the ability to mitigate moisture and ash in the system will improve the storage and conversion processes. In addition, being able to draw on feedstocks from further distances will decrease the risk of biomass supply to the conversion facility.

  15. RSS Feeds | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data Center HomeVehicle Replacement U.S.Job&EnergyProjectFeeds RSS Feeds The

  16. Variational Asymptotic Micromechanics Modeling of Heterogeneous Piezoelectric

    E-Print Network [OSTI]

    Yu, Wenbin

    piezoelectric materials are usually a better technical solution in the case of many applications such 1Variational Asymptotic Micromechanics Modeling of Heterogeneous Piezoelectric Materials Tian Tang properties and local fields of heterogeneous piezoelectric materials using the vari- ational asymptotic

  17. Memory Space Representation Heterogeneous Network Process Migration

    E-Print Network [OSTI]

    Sun, Xian-He

    Memory Space Representation for Heterogeneous Network Process Migration Kasidit Chanchio Xian@bit.csc.lsu.edu http://www.csc.lsu.edu/~scs/ Abstract A major difficulty of heterogeneous process migration is how and effective for heterogeneous network process migration. 1. Introduction As network computing becomes

  18. Strategic Biorefinery Analysis: Analysis of Biorefineries

    SciTech Connect (OSTI)

    Lynd, L. R.; Wyman, C.; Laser, M.; Johnson, D.; Landucci, R.

    2005-10-01

    Subcontract report prepared by Dartmouth College that identifies and discusses the advantages of producing ethanol in a biomass refinery as compared to a single-product facility.

  19. Feed mechanism and method for feeding minute items

    DOE Patents [OSTI]

    Stringer, Timothy Kent; Yerganian, Simon Scott

    2012-11-06

    A feeding mechanism and method for feeding minute items, such as capacitors, resistors, or solder preforms. The mechanism is adapted to receive a plurality of the randomly-positioned and randomly-oriented extremely small or minute items, and to isolate, orient, and position the items in a specific repeatable pickup location wherefrom they may be removed for use by, for example, a computer-controlled automated assembly machine. The mechanism comprises a sliding shelf adapted to receive and support the items; a wiper arm adapted to achieve a single even layer of the items; and a pushing arm adapted to push the items into the pickup location. The mechanism can be adapted for providing the items with a more exact orientation, and can also be adapted for use in a liquid environment.

  20. Feed mechanism and method for feeding minute items

    DOE Patents [OSTI]

    Stringer, Timothy Kent (Bucyrus, KS); Yerganian, Simon Scott (Lee's Summit, MO)

    2009-10-20

    A feeding mechanism and method for feeding minute items, such as capacitors, resistors, or solder preforms. The mechanism is adapted to receive a plurality of the randomly-positioned and randomly-oriented extremely small or minute items, and to isolate, orient, and position one or more of the items in a specific repeatable pickup location wherefrom they may be removed for use by, for example, a computer-controlled automated assembly machine. The mechanism comprises a sliding shelf adapted to receive and support the items; a wiper arm adapted to achieve a single even layer of the items; and a pushing arm adapted to push the items into the pickup location. The mechanism can be adapted for providing the items with a more exact orientation, and can also be adapted for use in a liquid environment.

  1. Effect of Bubbles and Silica Dissolution on Melter Feed Rheology...

    Office of Scientific and Technical Information (OSTI)

    Bubbles and Silica Dissolution on Melter Feed Rheology during Conversion to Glass As the nuclear waste glass melter feed is converted to molten glass, the feed becomes a...

  2. Biomass IBR Fact Sheet: Enerkem

    Broader source: Energy.gov [DOE]

    Enerkems biorefinery in northern Mississippi will convert heterogeneous (mixed) sorted municipal solid waste into ethanol.

  3. Mycotoxins in Feed and Food Crops. 

    E-Print Network [OSTI]

    Armstrong, James M.; Herb, Dennis B.; Bremer, John E.; Horne, C. Wendell; Thomas, William B.; Thornberry, Fred D.; Tripp, Leland D.; White, Thomas H.; Withers, Richard E.

    1981-01-01

    . The ancient Greeks, for example, cooked with mushrooms. This resulted in some people getting sick and others dying from the poisonous species of the mushrooms or fleshy fungi. The development of the science of . mycology (study of fungi) has permitted... and clean up program to keep bins, delivery trucks and other equipment free of adhering or caked feed ingredients. -Minimize dust accumulation in milling areas. -Cool pelleted feed before storage or delivery. -Keep all feed equipment free of caked feed...

  4. TINS -July 1978 l Neurophysiology of feeding

    E-Print Network [OSTI]

    Rolls, Edmund T.

    as to the separate roles of these differen" neurones. Lesions of the lateral hypothalamus reduce or abolish feeding, and of the ventro- medial hypothalamus lead to hyperpt gia and obesity. Conversely, electrical stimula- tion of the lateral hypothalamus can induce feeding, and of the ventromedial hypothalamus can stop feeding

  5. Feeding Waste Milk to Dairy Calves 

    E-Print Network [OSTI]

    Stokes, Sandra R.; Looper, Mike; Waldner, Dan; Jordan, Ellen R.

    2002-02-14

    to Dairy Calves Sandra A. Stokes, Michael L. Looper, Dan N. Waldner and Ellen R. Jordan* Dairy producers feed a variety of liquid feeds to young calves after the initial colostrum. These feeds include whole milk, surplus colostrum, transition milk, waste...

  6. Internal combustion engine fuel feed

    SciTech Connect (OSTI)

    Cochard, P.; Guicherd, C.

    1980-02-19

    In a method and apparatus for controlling the fuel feed to a stratified-charge internal combustion engine, from idle up to the position corresponding with the maximum flow of air, the overall richness (Rg) of the combustible mixture is reduced by acting simultaneously upon the flow of fuel feeding the main chamber and upon the flow of fuel injected into the auxiliary chamber. For higher loads the maximum flow of air is kept constant and rg is increased by continuing to act upon both fuel flows. By keeping the richness of the mixture in the auxiliary chamber substantially constant, it is possible to obtain the best compromise between the performance of the engine and the emission of pollutant gases.

  7. Farm Feed Processing & Handling Systems. 

    E-Print Network [OSTI]

    Allen, W. S.; Sorenson, J. W.; McCune, W. E.

    1970-01-01

    mixers. Either will do a satisfactory mixing job for farm use, providing care is used in proportioning. Mixing time should exceed 5 minutes. Vertical mixers. These use an upright inverted cone tank with a vertical auger in the center to mix the feed... horizontal U-shaped tank. A horizontal shaft equipped with paddles or spiral ribbons provides the mixing action. Some horizontal mixers use three large augers mounted hori- zontally parallel. Because they require less head room, the larger mixers...

  8. Fluidized bed boiler feed system

    DOE Patents [OSTI]

    Jones, Brian C. (Windsor, CT)

    1981-01-01

    A fluidized bed boiler feed system for the combustion of pulverized coal. Coal is first screened to separate large from small particles. Large particles of coal are fed directly to the top of the fluidized bed while fine particles are first mixed with recycled char, preheated, and then fed into the interior of the fluidized bed to promote char burnout and to avoid elutriation and carryover.

  9. Dynamic Economy with Heterogeneous Agents 

    E-Print Network [OSTI]

    Peng, Yulei

    2013-08-06

    [32], based on US data, show that compared with high income households, low income families use cash for a higher fraction of their total consumptions. By using the cash-in-advance model, Wen[85] shows that if the annual in ation rate is 10...%, households would like to recrease up to 15% of average con- sumption an annual year in order to obtain the Friedman rule in ation rate, which is signi cantly bigger than that of with considering homogeneous agents (Lucas [66]). Therefore, the heterogeneity...

  10. ENDA Feed | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA Jump to:of the NationalDynetek Europe GmbHED FETVEELOEMeterENDA Feed

  11. Digestibility and Production Coefficients of Hog Feeds

    E-Print Network [OSTI]

    Fraps, G. S. (George Stronach)

    1932-01-01

    , 1932. **In cooveration with U. S. Department of Agriculture, The value of a pig feed depends chiefly upon its content of digestible protein and productive energy. The average compos- ition, productive energy and digestible pro- tein are given.... They can be used to calculate the productive energy of pig feeds. CONTENTS Page Introduction 3 Digestion experiments with pigs 5 Method of work 5 Feeds used in the Texas digestion experiments _-------.~.__.____-----------------------.. 6 Digestion...

  12. Metabolizable Energy of Some Chicken Feeds

    E-Print Network [OSTI]

    Fudge, J. F. (Joseph Franklin); Carlyle, E. C. (Elmer Cardinal); Fraps, G. S. (George Stronach)

    1940-01-01

    PUS TEXAS AGRICULTURAL EXPERIMENT STATION A. B. CONNER. DIRECTOR COLLEGE STATION. BRAZOS COUNTY, TEXAS BULLETIN NO. 589 AUGUST 1940 * DIVISION OF CHEMISTRY Metabolizable Energy of Some Chicken Feeds -- AGRICULTURAL AND MECHANICAL COLLEGE OF TEXAS T... is one of a series dealing with the utilization of the T of animal feeds and of human foods. The metabolizable energy is ergy in the feed eaten less that excreted and is the maximum amount :rgy that can be utilized by the animals. No allowances...

  13. Metabotropic Glutamate Receptors Effects on Feeding

    E-Print Network [OSTI]

    Charles Cano, Jonathan Rene

    2015-01-01

    acid in the rodent hypothalamus: a reverse microdialysisreceptors in the rat hypothalamus and pituitary. Endocrinol.in key neurons of the hypothalamus that regulate feeding

  14. Novel Feed System for Pressurised Gasification

    E-Print Network [OSTI]

    Department of Chemical and Biological Engineering The University of Sheffield, Sheffield, UK *james. Current feeding systems can be split into six key categories: Rotary valves Lock hoppers Plug

  15. Commercial Feeding Stuffs, September 1, 1938, to August 31, 1939. 

    E-Print Network [OSTI]

    Fuller, F. D. (Frederick Driggs); Sullivan, James

    1939-01-01

    standards for various by-product feeds and special- purpose mixed feeds are shown, and definitions of and standards for commercial unmixed feeds are given, together with additional information on the requirements of the Texas Feed Law and the composition... of lime and salt in mixed feeds 13 Suggestions to purchasers of feed ................................. 15 .................................. Definitions and standards adopted 15 ................................... Special-purpose mixed feeds 16...

  16. Automatic Mapping of Real Time Radio Astronomy Signal Processing Pipelines onto Heterogeneous Clusters

    E-Print Network [OSTI]

    Filiba, Terry

    2013-01-01

    Astronomy Signal Processing Pipelines onto HeterogeneousAstronomy Signal Processing Pipelines onto HeterogeneousAstronomy Signal Processing Pipelines onto Heterogeneous

  17. Task and Machine Heterogeneities: Higher Moments Matter

    E-Print Network [OSTI]

    Maciejewski, Anthony A. "Tony"

    Task and Machine Heterogeneities: Higher Moments Matter Abdulla M. Al-Qawasmeh 1 , Anthony A.potter}@colostate.edu jtsmith@digitalglobe.com Abstract - One type of heterogeneous computing (HC) systems consists of machines in this matrix represents the ETC of a specific task on a specific machine when executed exclusively. Heuristics

  18. Geophysics of Chemical Heterogeneity in the Mantle

    E-Print Network [OSTI]

    Stixrude, Lars

    , transition zone Abstract Chemical heterogeneity, produced by the near-surface rock cycle and dom- inatedGeophysics of Chemical Heterogeneity in the Mantle Lars Stixrude and Carolina Lithgow. This lithologic-scale chemical het- erogeneity may survive in the mantle for as long as the age of Earth because

  19. Prepayments of feed in cattle feeding operations: An emphasis on tax aspects. 

    E-Print Network [OSTI]

    Wheat, Gary Don

    1972-01-01

    PREPAYMENTS OF FEED IN CATTLE FEEDING OPERATIONS: AN EMPHASIS ON TAX ASPECTS A Thesis by Gary Don Wheat Submitted to the Graduate College of Texas A&K University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE... December 1972 Major Subject: Accounting PREPAYMENTS OF FEED IN CATTLE FEEDING OPERATIONS: AN EMPHASIS ON TAX ASPECTS A Thesis by Gary Don Wheat Approved as to style and content by: (Cha rman of o ttee) (Head of Department) (Member) Ql (Member...

  20. The relationship between residual feed intake and feeding behavior in growing heifers 

    E-Print Network [OSTI]

    Bingham, Glenda Marie

    2009-05-15

    analyzed for the focal animals. All occurrences of feeding were timed and counted per day, and the eight 24-h periods averaged to derive the overall feeding event (FE) and meal duration and frequency for each focal heifer. Total feeding event duration...

  1. Proceedings of the 3rd Nordic Feed

    E-Print Network [OSTI]

    Proceedings of the 3rd Nordic Feed Science Conference, Uppsala, Sweden Institutionen för husdjurens of Animal Nutrition and Management ISSN 0347-9838 ISRN SLU-HUV-R-280-SE #12;#12;Proceedings of the 3rd committee of the 3rd Nordic Feed Science Conference Department of Animal Nutrition and Management Swedish

  2. Feeding Young Horses For Sound Development 

    E-Print Network [OSTI]

    Gibbs, Pete G.; Potter, Gary D.

    2005-05-25

    Feeding Young Horses for Sound Development B-5043 05-05 Feeding Young Horses for Sound Development Pete G. Gibbs Professor and Extension Horse Specialist Department Of Animal Science Equine Sciences Program The Texas A&M University System Gary D...

  3. Integrated Biorefinery Process

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

    Concept Proof Commercial Sustainability Information Resources Office of Biomass Program, Web Site: http:www1.eere.energy.govbiomass EERE Info Center - www1.eere.energy.gov...

  4. Bioenergy Impacts: Biorefineries

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based Fuels Researchof Energy|Make Fuels andfor itsEnergyand Abengoa for the

  5. Commercial Feeding Stuffs, September 1, 1937 to August 31, 1938. 

    E-Print Network [OSTI]

    Fuller, F. D. (Frederick Driggs); Sullivan, James

    1938-01-01

    and does not include whole grains. Chemical standards for various by-product feeds and special- purpose mixed feeds are shown, and definitions of and standards for commercial unmixed feeds are given, together with additional information... cake 12 ................................................. Cottonseed hulls 13 .......................... Carbonate of lime and salt in mixed feeds 14 Suggestions to purchasers of feed .................................. 15 Definitions and standards...

  6. Feed rate measuring method and system

    DOE Patents [OSTI]

    Novak, J.L.; Wiczer, J.J.

    1995-12-05

    A system and method are provided for establishing the feed rate of a workpiece along a feed path with respect to a machine device. First and second sensors each having first and second sensing electrodes which are electrically isolated from the workpiece are positioned above, and in proximity to the desired surfaces of the workpiece along a feed path. An electric field is developed between the first and second sensing electrodes of each sensor and capacitance signals are developed which are indicative of the contour of the workpiece. First and second image signals representative of the contour of the workpiece along the feed path are developed by an image processor. The time delay between corresponding portions of the first and second image signals are then used to determine the feed rate based upon the separation of the first and second sensors and the amount of time between corresponding portions of the first and second image signals. 18 figs.

  7. Bedload sheets in heterogeneous sediment

    SciTech Connect (OSTI)

    Whiting, P.J.; Dietrich, W.E.; Leopold, L.B.; Drake, T.G.; Shreve, R.L.

    1988-02-01

    Field observations in streams with beds of coarse sand and fine gravel have revealed that bedload moves primarily as thin, migrating accumulations of sediment, and coarse grains cluster at their leading edge. These accumulations are one or two coarse grains high and are much longer (0.2-0.6 m long in sand; 0.5-2.0 m in fine gravel) than their height. The authors propose the term bedload sheet for these features, and the authors argue that they result from an instability inherent to bedload movement of moderately and poorly sorted sediment. In essence, coarse particles in the bedload slow or stop each other, trap finer particles in their interstices, and thus cause the coarse particles to become mobile again. Bedload sheets develop on the stoss side of dunes, causing the dune to advance incrementally with the arrival of each sheet. Successive deposition of coarse sediment from the leading edge followed by fine sediment may generate the grain-size sorting that distinguishes cross-bedding. Available flume experiments and field observations indicate that bedload sheets are a common, but generally unrecognized, feature of heterogeneous sediment transport.

  8. Scroll Waves Pinned to Moving Heterogeneities

    E-Print Network [OSTI]

    Hua Ke; Zhihui Zhang; Oliver Steinbock

    2014-12-04

    Three-dimensional excitable systems can selforganize vortex patterns that rotate around one-dimensional phase singularities called filaments. In experiments with the Belousov-Zhabotinsky reaction and numerical simulations, we pin these scroll waves to moving heterogeneities and demonstrate the controlled repositioning of their rotation centers. If the pinning site extends only along a portion of the filament, the phase singularity is stretched out along the trajectory of the heterogeneity which effectively writes the singularity into the system. Its trailing end point follows the heterogeneity with a lower velocity. This velocity, its dependence on the placement of the anchor, and the shape of the filament are explained by a curvature flow model.

  9. Waste feed delivery planning at Hanford

    SciTech Connect (OSTI)

    Certa, Paul J.; West, Elizha B.; Rodriguez, Juissepp S.; Hohl, Ted M.; Larsen, Douglas C.; Ritari, Jaakob S.; Kelly, James W.

    2013-01-10

    The Integrated Waste Feed Delivery Plan (IWFDP) describes how waste feed will be delivered to the Waste Treatment and Immobilization Plant (WTP) to safely and efficiently accomplish the River Protection Project (RPP) mission. The IWFDP, which is integrated with the Baseline Case operating scenario, is comprised of three volumes. Volume 1 - Process Strategy provides an overview of waste feed delivery (WFD) and describes how the WFD system will be used to prepare and deliver feed to the WTP based on the equipment configuration and functional capabilities of the WFD system. Volume 2 - Campaign Plan describes the plans for the first eight campaigns for delivery to the WTP, evaluates projected feed for systematic issues, projects 242-A Evaporator campaigns, and evaluates double-shell tank (DST) space and availability of contingency feed. Volume 3 - Project Plan identifies the scope and timing of the DST and infrastructure upgrade projects necessary to feed the WTP, and coordinates over 30 projectized projects and operational activities that comprise the needed WFD upgrades.

  10. For Continuous Feeding with Pump Using the CORFLO Anti-IV Feeding Tube and Extension SetFor Continuous Feeding with Pump Using the CORFLO Anti-IV Feeding Tube and Extension Set For Gravity Feeding Using the CORFLO Anti-IV Enteral Feeding TubeFor Gravity F

    E-Print Network [OSTI]

    Kay, Mark A.

    1. 3. 4. 5. 2. 5. 6. 7. 6. 7. 3. 4. For Continuous Feeding with Pump Using the CORFLO Anti-IV Feeding Tube and Extension SetFor Continuous Feeding with Pump Using the CORFLO Anti-IV Feeding Tube the instructions above for Continuous Feeding. Simply hang the syringe rather than putting it in a syringe pump

  11. Percolation and homogenization theories for heterogeneous materials

    E-Print Network [OSTI]

    Chen, Ying, Ph. D. Massachusetts Institute of Technology

    2008-01-01

    Most materials produced by Nature and by human beings are heterogeneous. They contain domains of different states, structures, compositions, or material phases. How these different domains are distributed in space, or in ...

  12. INFORMATION RESOURCES MANAGEMENT IN HETEROGENEOUS, DISTRIBUTED ENVIRONMENTS

    E-Print Network [OSTI]

    Hsu, Cheng

    for Manufacturing Productivity and Technology Transfer RENSSELAER POLYTECHNIC INSTITUTE Troy, NY 12180-3590 #12INFORMATION RESOURCES MANAGEMENT IN HETEROGENEOUS, DISTRIBUTED ENVIRONMENTS: A METADATABASE Conference on Computer Integrated Manufacturing, Rensselaer Polytechnic Institute, Troy, NY 12180, May 1990

  13. Reconciling Semantic Heterogeneity in Web Services Composition

    E-Print Network [OSTI]

    Li, Xitong

    Service Oriented Computing (SOC) is a popular computing paradigm for the development of distributed Web applications. Service composition, a key element of SOC, is severely hampered by various types of semantic heterogeneity ...

  14. Heterogeneous effects in fast breeder reactors

    E-Print Network [OSTI]

    Gregory, Michael Vladimir

    1973-01-01

    Heterogeneous effects in fast breeder reactors are examined through development of simple but accurate models for the calculation of a posteriori corrections to a volume-averaged homogeneous representation. Three distinct ...

  15. Proximity Computations on Heterogeneous Computing Systems

    E-Print Network [OSTI]

    Work Optimization-based scheduling Automatically distribute dynamically generated jobs while heterogeneity) (With our optimization-based scheduling) #12;Current Work Results FPS +Tesla2075 +GTX480 +GTX580

  16. Characterizing aquifer heterogeneity using hydraulic tomography

    E-Print Network [OSTI]

    Wachter, Brian James

    2008-07-29

    Fine-scale heterogeneity in a geologic medium determines rates and directions of flow and of contaminant transport. Traditional methods of determining hydraulic conductivity provide only average values of hydraulic ...

  17. Effects of Residual Feed Intake Classification on Temperament, Carcass Composition, and Feeding Behavior Traits in Growing Santa Gertrudis Heifers 

    E-Print Network [OSTI]

    Ramirez, Justin A

    2014-04-16

    Objectives of this study were to evaluate the associations of feed intake, feeding behavior, temperament, and carcass composition with performance and feed efficiency traits in growing heifers. Santa Gertrudis heifers (n ...

  18. Plasma arc torch with coaxial wire feed

    DOE Patents [OSTI]

    Hooper, Frederick M (Albuquerque, NM)

    2002-01-01

    A plasma arc welding apparatus having a coaxial wire feed. The apparatus includes a plasma arc welding torch, a wire guide disposed coaxially inside of the plasma arc welding torch, and a hollow non-consumable electrode. The coaxial wire guide feeds non-electrified filler wire through the tip of the hollow non-consumable electrode during plasma arc welding. Non-electrified filler wires as small as 0.010 inches can be used. This invention allows precision control of the positioning and feeding of the filler wire during plasma arc welding. Since the non-electrified filler wire is fed coaxially through the center of the plasma arc torch's electrode and nozzle, the wire is automatically aimed at the optimum point in the weld zone. Therefore, there is no need for additional equipment to position and feed the filler wire from the side before or during welding.

  19. Proceedings of the 5th Nordic Feed

    E-Print Network [OSTI]

    Feed Science conferences are indexed and archived in CAB Abstracts since 2010 #12;Foreword This year we of silages 10 L. Kung Jr. Aerobic exposure of silages ­ effects on chemical composition and preference

  20. Feeding Biomechanics & Craniodental Morphology in Otters (Lutrinae) 

    E-Print Network [OSTI]

    Timm, Lori L

    2013-07-23

    raptorial capture of prey (mouth-oriented) and capture of prey by hand (hand-oriented), which likely correspond to craniodental morphology and bite performance. However, feeding biomechanics and performance data for otters, aquatic mustelids that consume...

  1. Multiscale Conformational Heterogeneity in Staphylococcal Protein A: Possible Determinant

    E-Print Network [OSTI]

    Richardson, David

    to conformational heterogeneity in crys- tal structures, from diverse crystal contacts to functionally rele- vant

  2. ComputerScience,TexasA&MUniversity Modeling Heterogeneous User

    E-Print Network [OSTI]

    Loguinov, Dmitri

    1 ComputerScience,TexasA&MUniversity Modeling Heterogeneous User Churn and Local Resilience of Unstructured P2P Networks Modeling Heterogeneous UserModeling Heterogeneous User Churn and Local Resilience ofChurn Churn and Local Resilience of Unstructured P2P Networks Modeling Heterogeneous User

  3. Process for mild hydrocracking of hydrocarbon feeds

    SciTech Connect (OSTI)

    Nevitt, T.D.; Hopkins, P.D.; Tait, A.M.

    1984-02-14

    A process for mild hydrocracking of hydrocarbon feeds comprising contacting the feed with hydrogen under mild hydrocracking conditions in the presence of a catalytic composition comprising an active metallic component comprising at least one metal having hydrogenation activity and at least one oxygenated phosphorus component, and a support component comprising at least one non-zeolitic, porous refractory inorganic oxide matrix component and at least one shape selective crystalline molecular sieve zeolite component.

  4. Feeding Race Prospects and Racehorses in Training 

    E-Print Network [OSTI]

    Gibbs, Pete G.; Potter, Gary D.; Scott, Brett D.

    2002-12-18

    .4 megacalories of digestible energy per pound. Feeds with higher levels of energy need even Once training or forced exercise begins, the feeding program should be evaluated even more carefully. Horses in race training Researchers have recently found... on good-quali- ty, improved pastures. The digestive tract of a yearling can process more roughage than that of a weanling. Good-quality grazing appears to sup- port acceptable growth and development at this stage. 7 However, yearlings being prepared...

  5. Nebraska's Cattle Feeding Industry: Size, Structure and Related Industries

    E-Print Network [OSTI]

    Farritor, Shane

    growing production of distillers grains and other feed byproducts from bio-energy produc- tion plants

  6. Beef feedlot cattle use individual feeding strategies to gain access to feed in a competitive environment

    E-Print Network [OSTI]

    Farrell, Anthony P.

    i Beef feedlot cattle use individual feeding strategies to gain access to feed in a competitive August 2007 © Gosia Zobel, 2007 #12;ii ABSTRACT Cattle are social animals and frequently interact interest in the social behavior of cattle, no research has focused on assessing the relationship between

  7. Tank 26 Evaporator Feed Pump Transfer Analysis

    SciTech Connect (OSTI)

    Tamburello, David; Dimenna, Richard; Lee, Si

    2009-02-11

    The transfer of liquid salt solution from Tank 26 to an evaporator is to be accomplished by activating the evaporator feed pump, located approximately 72 inches above the sludge layer, while simultaneously turning on the downcomer. Previously, activation of the evaporator feed pump was an isolated event without any other components running at the same time. An analysis of the dissolved solution transfer has been performed using computational fluid dynamics methods to determine the amount of entrained sludge solids pumped out of the tank to the evaporator with the downcomer turned on. The analysis results showed that, for the maximum and minimum supernate levels in Tank 26 (252.5 and 72 inches above the sludge layer, respectively), the evaporator feed pump will entrain between 0.03 and 0.1 wt% sludge undissolved solids weight fraction into the eductor, respectively, and therefore are an order of magnitude less than the 1.0 wt% undissolved solids loading criteria to feed the evaporator. Lower tank liquid levels, with respect to the sludge layer, result in higher amounts of sludge entrainment due to the increased velocity of the plunging jets from the downcomer and evaporator feed pump bypass as well as decreased dissipation depth. Revision 1 clarifies the analysis presented in Revision 0 and corrects a mathematical error in the calculations for Table 4.1 in Revision 0. However, the conclusions and recommendations of the analysis do not change for Revision 1.

  8. Low-level waste feed staging plan

    SciTech Connect (OSTI)

    Certa, P.J.; Grams, W.H.; McConville, C.M.; L. W. Shelton, L.W.; Slaathaug, E.J., Westinghouse Hanford

    1996-08-12

    The `Preliminary Low-Level Waste Feed Staging Plan` was updated to reflect the latest requirement in the Tank Waste Remediation Privatization Request for Proposals (RFP) and amendments. The updated plan develops the sequence and transfer schedule for retrieval of DST supernate by the management and integration contractor and delivery of the staged supernate to the private low-activity waste contractors for treatment. Two DSTs are allocated as intermediate staging tanks. A transfer system conflict analysis provides part of the basis for determining transfer system upgrade requirements to support both low-activity and high-level waste feed delivery. The intermediate staging tank architecture and retrieval system equipment are provided as a planning basis until design requirements documents are prepared. The actions needed to successfully implement the plan are identified. These include resolution of safety issues and changes to the feed envelope limits, minimum order quantities, and desired batch sizes.

  9. Effects of Residual Feed Intake Classification on Feed Efficiency, Feeding Behavior, Carcass Traits, and Net Revenue in Angus-Based Composite Steers 

    E-Print Network [OSTI]

    Walter, Joel

    2012-02-14

    and carcass measurements on between-animal variation in net revenue of feedlot steers. Performance, feed intake and feeding behavior traits were measured in 508 Angus-based composite steers, using the GrowSafe feed-intake measurement system, while fed a high...

  10. Cottonseed Meal as a Feed for Hogs. 

    E-Print Network [OSTI]

    Hale, Fred

    1930-01-01

    FEED FOR HOGS AGRICULTURAL AND MECHANICAL COLLEGE OF TEXAS T. 0. WALTON, President STATION STAFF7 AD MINISTRATION : A B CONNER M S Director R: E: KARPERI M: s:: Vice-Director CLARICE MIX~N B.'A Secretary M. P. HOLLEMAN: JR., chief Clefk J. K... contains the results of the study of cottonseed meal as a feed for hogs. The period of this study was from 1924 to 1928, inclusive. Eight brood sows and two hundred and seventy-nine pigs were used during the four and one-half years' study on various...

  11. Compressor bleed cooling fluid feed system

    DOE Patents [OSTI]

    Donahoo, Eric E; Ross, Christopher W

    2014-11-25

    A compressor bleed cooling fluid feed system for a turbine engine for directing cooling fluids from a compressor to a turbine airfoil cooling system to supply cooling fluids to one or more airfoils of a rotor assembly is disclosed. The compressor bleed cooling fluid feed system may enable cooling fluids to be exhausted from a compressor exhaust plenum through a downstream compressor bleed collection chamber and into the turbine airfoil cooling system. As such, the suction created in the compressor exhaust plenum mitigates boundary layer growth along the inner surface while providing flow of cooling fluids to the turbine airfoils.

  12. Commercial Feeding Stuffs 1917-1918. 

    E-Print Network [OSTI]

    Fuller, F. D. (Frederick Driggs)

    1918-01-01

    as mzy be necessary for the enforcement of the lam. T director shall have the power. to refuse the registration of any feedin under a name which would be misleading as to the materials of whio made up, or which does no 1 to the standards and defir... poilnds of feeding stuffs the package contains. 2. Xame of brand. exactly as shown in registration. 3. Sames of the ingredients of which such feed is cpmposed, in cases where the contents are of a mixed niiture. 4. Percentage of each ingredient of )he...

  13. National Geo-Database for Biofuel Simulations and Regional Analysis of Biorefinery Siting Based on Cellulosic Feedstock Grown on Marginal Lands

    SciTech Connect (OSTI)

    Izaurralde, Roberto C.; Zhang, Xuesong; Sahajpal, Ritvik; Manowitz, David H.

    2012-04-01

    The goal of this project undertaken by GLBRC (Great Lakes Bioenergy Research Center) Area 4 (Sustainability) modelers is to develop a national capability to model feedstock supply, ethanol production, and biogeochemical impacts of cellulosic biofuels. The results of this project contribute to sustainability goals of the GLBRC; i.e. to contribute to developing a sustainable bioenergy economy: one that is profitable to farmers and refiners, acceptable to society, and environmentally sound. A sustainable bioenergy economy will also contribute, in a fundamental way, to meeting national objectives on energy security and climate mitigation. The specific objectives of this study are to: (1) develop a spatially explicit national geodatabase for conducting biofuel simulation studies and (4) locate possible sites for the establishment of cellulosic ethanol biorefineries. To address the first objective, we developed SENGBEM (Spatially Explicit National Geodatabase for Biofuel and Environmental Modeling), a 60-m resolution geodatabase of the conterminous USA containing data on: (1) climate, (2) soils, (3) topography, (4) hydrography, (5) land cover/ land use (LCLU), and (6) ancillary data (e.g., road networks, federal and state lands, national and state parks, etc.). A unique feature of SENGBEM is its 2008-2010 crop rotation data, a crucially important component for simulating productivity and biogeochemical cycles as well as land-use changes associated with biofuel cropping. ARRA support for this project and to the PNNL Joint Global Change Research Institute enabled us to create an advanced computing infrastructure to execute millions of simulations, conduct post-processing calculations, store input and output data, and visualize results. These computing resources included two components installed at the Research Data Center of the University of Maryland. The first resource was 'deltac': an 8-core Linux server, dedicated to county-level and state-level simulations and PostgreSQL database hosting. The second resource was the DOE-JGCRI 'Evergreen' cluster, capable of executing millions of simulations in relatively short periods. ARRA funding also supported a PhD student from UMD who worked on creating the geodatabases and executing some of the simulations in this study. Using a physically based classification of marginal lands, we simulated production of cellulosic feedstocks from perennial mixtures grown on these lands in the US Midwest. Marginal lands in the western states of the US Midwest appear to have significant potential to supply feedstocks to a cellulosic biofuel industry. Similar results were obtained with simulations of N-fertilized perennial mixtures. A detailed spatial analysis allowed for the identification of possible locations for the establishment of 34 cellulosic ethanol biorefineries with an annual production capacity of 5.6 billion gallons. In summary, we have reported on the development of a spatially explicit national geodatabase to conduct biofuel simulation studies and provided simulation results on the potential of perennial cropping systems to serve as feedstocks for the production of cellulosic ethanol. To accomplish this, we have employed sophisticated spatial analysis methods in combination with the process-based biogeochemical model EPIC. The results of this study will be submitted to the USDOE Bioenergy Knowledge Discovery Framework as a way to contribute to the development of a sustainable bioenergy industry. This work provided the opportunity to test the hypothesis that marginal lands can serve as sources of cellulosic feedstocks and thus contribute to avoid potential conflicts between bioenergy and food production systems. This work, we believe, opens the door for further analysis on the characteristics of cellulosic feedstocks as major contributors to the development of a sustainable bioenergy economy.

  14. Feed Intake and Feeding Behavior Associations with Performance and Feed Efficiency of Feedlot Cattle Fed a Corn-based Diet 

    E-Print Network [OSTI]

    Bailey, Jayton

    2012-02-14

    - RFI pigs. Bunk visit duration, frequency and feed intake per BV traits were all found to have moderate to high heritabilities in Landrace and Large White boars of 0.43, 0.43, and 0.51, respectively (Von Felde et al., 1996). Similarly, BV duration...

  15. Modeling the Energy Efficiency of Heterogeneous Clusters

    E-Print Network [OSTI]

    Teo, Yong-Meng

    are an alternative for energy-efficient clusters [18], [20], [23]. On the contrary, other researchersModeling the Energy Efficiency of Heterogeneous Clusters Lavanya Ramapantulu, Bogdan Marius Tudor analyze the energy efficiency of mixing high-performance and low-power nodes in a cluster. Using a model

  16. THE IMPACT OF DYNAMICALLY HETEROGENEOUS MULTICORE

    E-Print Network [OSTI]

    Sorin, Daniel J.

    -Core Opteron, Sun Microsystems' Niagara,2 and IBM's Power5.3 These pro- cessors have between two and eight SHOWS THAT OPERATING SYSTEM SCHEDULERS MUST CONSIDER DYNAMIC HETEROGENEITY OR SUFFER SIGNIFICANT POWER of homogeneous cores.6,7 With core special- ization, runtime fault handling, and power management, it is likely

  17. Vancouver: A Software Stack for Productive Heterogeneous

    E-Print Network [OSTI]

    .S. Department of Energy Vetter_Vancouver_SC10 Vancouver overview · Large-scale heterogeneous system deployments #12;3 Managed by UT-Battelle for the U.S. Department of Energy Vetter_Vancouver_SC10 Language tools optimizations #12;4 Managed by UT-Battelle for the U.S. Department of Energy Vetter_Vancouver_SC10 Runtime data

  18. Heterogeneous lithium niobate photonics on silicon substrates

    E-Print Network [OSTI]

    Fathpour, Sasan

    /waveguide on silicon," J. Lightwave Technol. 25(7), 1826­1831 (2007). 4. M. J. Weber, Handbook of Optical Materials and selective oxidation of refractory metals. The heterogeneous photonic platform is employed to demonstrate as a new electro-optic material," Nature 441(7090), 199­202 (2006). 7. K. K. Tsia, S. Fathpour, and B

  19. Systematically heterogeneous covariance in network gev models

    E-Print Network [OSTI]

    Bierlaire, Michel

    large in certain market seg- ments. The results also suggest that the two heterogeneous models with increasing computational power, but still requires substantial extra computational and memory resources and vector parameters respectively, and F is a transformational function with the properties that F (-) = 0

  20. Mapping mesoscale heterogeneity in the plastic deformation of a copper single crystal

    E-Print Network [OSTI]

    Magid, K. R.

    2009-01-01

    619. page 18 Mapping mesoscale heterogeneity in a deformedthese planes. page 36 Mapping mesoscale heterogeneity in aJanuary 2009, 77–107 Mapping mesoscale heterogeneity in the

  1. Spatial control in the heterogeneous nucleation of water

    E-Print Network [OSTI]

    Varanasi, Kripa K.

    Heterogeneous nucleation of water plays an important role in a wide range of natural and industrial processes. Though heterogeneous nucleation of water is ubiquitous and an everyday experience, spatial control of this ...

  2. STOCHASTIC DESIGN AND CONTROL IN RANDOM HETEROGENEOUS MATERIALS

    E-Print Network [OSTI]

    Del Moral , Pierre

    STOCHASTIC DESIGN AND CONTROL IN RANDOM HETEROGENEOUS MATERIALS RAPHAEL STERNFELS AND PHAEDON-STELIOS KOUTSOURELAKIS Abstract. The present paper discusses a sampling framework that enables the optimization concerned with problems relating to random heterogeneous materials where uncertainties arise from

  3. Change Management in Heterogeneous Semistructured Databases (Demonstration Description) \\Lambda

    E-Print Network [OSTI]

    Chawathe, Sudarshan S.

    Change Management in Heterogeneous Semistructured Databases (Demonstration Description) \\Lambda the trigger should fire. At Stanford we are addressing the problem of change management in heterogeneous TDIFF CORE QSS Tsimmis Figure 1: Components of our change management system subscribers of changes

  4. Semantic Taxonomy Induction from Heterogenous Evidence Computer Science Department

    E-Print Network [OSTI]

    Ng, Andrew Y.

    Semantic Taxonomy Induction from Heterogenous Evidence Rion Snow Computer Science Department­ tic taxonomies. Previous algorithms for taxonomy induction have typically focused on independent over heterogenous relationships to optimize the entire structure of the taxonomy, using knowl­ edge

  5. Semantic Taxonomy Induction from Heterogenous Evidence Computer Science Department

    E-Print Network [OSTI]

    Ng, Andrew Y.

    Semantic Taxonomy Induction from Heterogenous Evidence Rion Snow Computer Science Department- tic taxonomies. Previous algorithms for taxonomy induction have typically focused on independent over heterogenous relationships to optimize the entire structure of the taxonomy, using knowl- edge

  6. Virus transport in physically and geochemically heterogeneous subsurface porous media

    E-Print Network [OSTI]

    Ryan, Joe

    Virus transport in physically and geochemically heterogeneous subsurface porous media Subir for virus transport in physically and geochemically heterogeneous subsurface porous media is presented. The model involves solution of the advection­dispersion equation, which additionally considers virus

  7. Injectivity Testing for Vapour Dominated Feed Zones

    SciTech Connect (OSTI)

    Clotworthy, A.W.; Hingoyon, C.S.

    1995-01-01

    Wells with vapor dominated feed zones yield abnormal pressure data. This is caused by the condensation of vapor during water injection. A revised injectivity test procedure currently applied by PNOC at the Leyte Geothermal Power Project has improved the injectivity test results.

  8. TANK 26 EVAPORATOR FEED PUMP TRANSFER ANALYSIS

    SciTech Connect (OSTI)

    Tamburello, D; Si Lee, S; Richard Dimenna, R

    2008-09-30

    The transfer of liquid salt solution from Tank 26 to an evaporator is to be accomplished by activating the evaporator feed pump, located approximately 72 inches above the sludge layer, while simultaneously turning on the downcomer. Previously, activation of the evaporator feed pump was an isolated event without any other components running at the same time. An analysis of the dissolved solution transfer has been performed using computational fluid dynamics methods to determine the amount of entrained sludge solids pumped out of the tank to the evaporator with the downcomer turned on. The analysis results showed that, for the maximum and minimum supernate levels in Tank 26 (252.5 and 72 inches above the sludge layer, respectively), the evaporator feed pump will entrain between 0.05 and 0.1 wt% sludge solids weight fraction into the eductor, respectively. Lower tank liquid levels, with respect to the sludge layer, result in higher amounts of sludge entrainment due to the increased velocity of the plunging jets from the downcomer and evaporator feed pump bypass as well as decreased dissipation depth.

  9. TANK 32 EVAPORATOR FEED PUMP TRANSFER ANALYSIS

    SciTech Connect (OSTI)

    Tamburello, D; Richard Dimenna, R; Si Lee, S

    2009-01-27

    The transfer of liquid salt solution from Tank 32 to an evaporator is to be accomplished by activating the evaporator feed pump, with the supernate surface at a minimum height of approximately 74.4 inches above the sludge layer, while simultaneously turning on the downcomer with a flow rate of 110 gpm. Previously, activation of the evaporator feed pump was an isolated event without any other components running at the same time. An analysis of the dissolved solution transfer has been performed using computational fluid dynamics (CFD) methods to determine the amount of entrained sludge solids pumped out of the tank toward the evaporator with the downcomer turned on. The analysis results shows that, for the minimum tank liquid level of 105 inches above the tank bottom (which corresponds to a liquid depth of 74.4 inches above the sludge layer), the evaporator feed pump will contain less than 0.1 wt% sludge solids in the discharge stream, which is an order of magnitude less than the 1.0 wt% undissolved solids (UDS) loading criteria to feed the evaporator. Lower liquid levels with respect to the sludge layer will result in higher amounts of sludge entrainment due to the increased plunging jet velocity from the downcomer disturbing the sludge layer.

  10. Feeding Experiments with Steers and Hogs. 

    E-Print Network [OSTI]

    Cruse, J.T.

    1910-01-01

    . rice; 1156.5 Ibs. tankage. Hogs fed cottonseed meal and rough red rice. Average daily gain 1.: 26 pounds. Hogs fed alfalfa meal and corn chops, fermented. Average daily gain, 1.14 pounds TABLE 1V.-FEED EATEN AND GAINS MADE BY LOT IV RECEIVING...

  11. comparator Feed CCM/DCM modification

    E-Print Network [OSTI]

    controller. Comparator signal (sDCM) feeds into the DCM current sensing corrector, and into DPWM for adaptive-- This paper addresses control techniques aimed at improving light-load efficiency and reducing harmonic (CCM) and in DCM. Furthermore, adaptive switching and adaptive switching frequency techniques

  12. Rigid Top Plate Electronics Feed-through

    E-Print Network [OSTI]

    Sample SupportRod Vessel Head Rigid Top Plate Electronics Feed-through Aluminum Standard Ultrasonic measurement assembly. For seismic frequencies, strains are measured on both the sample and aluminum standard and exchange of pore fluids independent of confining pressure. #12;1. Ends flat and parallel (length should = 2

  13. Microgrids and Heterogeneous Power Quality and Reliability

    SciTech Connect (OSTI)

    LaCommare, Kristina; Marnay, Chris

    2007-10-01

    This paper describes two stylized alternative visions of how the power system might evolve to meet future requirements for the high quality electricity service that modern digital economies demand, a supergrids paradigm and a dispersed paradigm. Some of the economics of the dispersed vision are explored, and perspectives are presented on both the choice of homogeneous universal power quality upstream in the electricity supply chain and on the extremely heterogeneous requirements of end-use loads. It is argued that meeting the demanding requirements of sensitive loads by local provision of high quality power may be more cost effective than increasing the quality of universal homogeneous supply upstream in the legacy grid. Finally, the potential role of microgrids in delivering heterogeneous power quality is demonstrated by reference to two ongoing microgrid tests in the U.S. and Japan.

  14. Dedicated heterogeneous node scheduling including backfill scheduling

    DOE Patents [OSTI]

    Wood, Robert R. (Livermore, CA); Eckert, Philip D. (Livermore, CA); Hommes, Gregg (Pleasanton, CA)

    2006-07-25

    A method and system for job backfill scheduling dedicated heterogeneous nodes in a multi-node computing environment. Heterogeneous nodes are grouped into homogeneous node sub-pools. For each sub-pool, a free node schedule (FNS) is created so that the number of to chart the free nodes over time. For each prioritized job, using the FNS of sub-pools having nodes useable by a particular job, to determine the earliest time range (ETR) capable of running the job. Once determined for a particular job, scheduling the job to run in that ETR. If the ETR determined for a lower priority job (LPJ) has a start time earlier than a higher priority job (HPJ), then the LPJ is scheduled in that ETR if it would not disturb the anticipated start times of any HPJ previously scheduled for a future time. Thus, efficient utilization and throughput of such computing environments may be increased by utilizing resources otherwise remaining idle.

  15. Grain Sorghum By-Product Feeds for Farm Animals. 

    E-Print Network [OSTI]

    1951-01-01

    . GRAIN SORGHUM BY-PRODUCT FEEDS FOR FARM ANIMALS 15 SORGHUJI GLUTEN FEED Sorghum gluten feed was used in three different combi- nations in experimental rations for fattening steers. In the first ration, it was fed as the only concentrate received... .................................................................................................. 18 Sorghum gluten meal .................................................................................. 18 experimental ration ............................................................................. 18...

  16. Comparative feeding biomechanics and behavioral performance of feeding in the family kogiidae and tursiops truncatus (odontoceti, cetacea) 

    E-Print Network [OSTI]

    Bloodworth, Brian Edward

    2007-09-17

    Hyolingual biomechanics and kinematics in three species of two odontocete genera were investigated to compare adaptations and performance of divergent feeding strategies. Ram and suction feeding are two ends of a continuous spectrum that is poorly...

  17. Determining biological sources of variation in residual feed intake in Brahman heifers during confinement feeding and on pasture 

    E-Print Network [OSTI]

    Dittmar (III), Robert Otto

    2009-05-15

    Objectives were to characterize residual feed intake (RFI) and determine the phenotypic correlation between performance, feed efficiency, and other biological measurements in Brahman heifers, as well as the relationship ...

  18. Crude oil as refinery feed stock

    SciTech Connect (OSTI)

    Boduszynski, M.M.; Farrell, T.R. [Chevron Research and Technology Co., Richmond, CA (United States)

    1995-12-31

    This paper gives a brief overview of the integrated oil refinery. It illustrates that crude oil refining involves {open_quotes}molecular tailoring,{close_quotes} where feed stock molecules are {open_quotes}tailored{close_quotes} through catalytic processing to make products with the most desirable composition. Chemical composition of crude oil as refinery feed stock is discussed. The emphasis is on the understanding of molecular transformations which occur in refinery processes to manufacture light transportation fuels. Diesel fuel manufacturing is used as an example. Recent environmental legislation in the United States has necessitated a significant upgrade in the quality of diesel fuel used for highway transportation. Examples are given to illustrate the impact that petroleum chemistry may have on the industry`s response to government regulations.

  19. Waste Feed Delivery Transfer System Analysis

    SciTech Connect (OSTI)

    JULYK, L.J.

    2000-05-05

    This document provides a documented basis for the required design pressure rating and pump pressure capacity of the Hanford Site waste-transfer system in support of the waste feed delivery to the privatization contractor for vitrification. The scope of the analysis includes the 200 East Area double-shell tank waste transfer pipeline system and the associated transfer system pumps for a11 Phase 1B and Phase 2 waste transfers from AN, AP, AW, AY, and A2 Tank Farms.

  20. Commercial Feeding Stuffs in 1907-08. 

    E-Print Network [OSTI]

    Carson, J.W.; Fraps, G. S. (George Stronach)

    1908-01-01

    GICULTURAL EXPERIIMENT STATIONS. BULLETIN NO. 117. November, 1908. Commercial Feeding Stuffs in 1907-08. J. W. CARSON AND G. S. FRAPS. POSTOFFICE : COLLEGE STATION, BRAZOS COUNTY, TEXAS. AUSTIN, TEXAS: VON BOECKMANN-JONES CO., PRINTERS 1908. TEXAS AGRICULTURAI... not, nnder any circumstances, print this infornation upon the tag. The following examples show how the information which the law re- quires should appear on the tax tag: 100 POUNDS CORN CHOPS. Manufactured by J. JV. NELSON $ CO., LITTLE ELM...

  1. Feed-In Tariffs and similar programs

    Reports and Publications (EIA)

    2013-01-01

    Feed-in tariffs (FITs) are a policy mechanism used to encourage deployment of renewable electricity technologies. FITs are used to a limited extent around the United States as listed. A FIT program typically guarantees that customers who own a FIT-eligible renewable electricity generation facility, such as a roof-top solar photovoltaic system, will receive a set price from their utility for all of the electricity they generate and provide to the grid.

  2. Vitamin A Content of Foods and Feeds

    E-Print Network [OSTI]

    Treichler, Ray; Fraps, G. S. (George Stronach)

    1933-01-01

    Publications : H. G. Wick-, D. V. M.. Feed Inepeetor A. D. Jackson. Chief SUBSTATIONS No. 1, Beeville. Bee County: No. 9, Balmorhea, Reeven CountT: R. A. Hall, B. S.. Superintendent J. J. Bayles. B. S., Superintendent No. 2, Lindale. Smith County: No. 10... stover ........................... Kafir, black 6 1-31 ............................................. Kafir red Kafir, white .............................................. Loco weed, air dried .............................. 4 55 2 48 Milk, whole...

  3. Understanding Fish Nutrition, Feeds, and Feeding Steven Craig, Extension Specialist, Virginia-Maryland College of Veterinary Medicine, Virginia Tech

    E-Print Network [OSTI]

    Liskiewicz, Maciej

    Understanding Fish Nutrition, Feeds, and Feeding Steven Craig, Extension Specialist, Virginia to economically produce a healthy, high quality product. In fish farming, nutrition is critical because feed represents 40-50% of the production costs. Fish nutrition has advanced dramatically in recent years

  4. Annual Report of the Feed Control Service, 1951-52. 

    E-Print Network [OSTI]

    Holleman, M. P.; Brock, F. D.

    1952-01-01

    CONTROL SERVICE 1951-52 [Blank Page in Original Bulletin] Digest This bulletin is the 47th annual report of the Feed Control Service on the inspection and analysis of feeds sold in Texas. Heretofore it has been entitled "Commercial Feeding Stuffs...," for the fiscal year covered. In this bulletin is the analysis of each sample of feed taken and a detailed report of the results obtained in the inspection of feeds from September 1, 1951, to August 31, 1952. During this fiscal year, 3,611 official samples...

  5. The effects of feed area design on the social behaviour of dairy cattle 

    E-Print Network [OSTI]

    Rioja-Lang, Fiona C

    2009-01-01

    The overall objective of this thesis was to assess the effect of feed area design including feeding space availability, barrier type and stocking density, on the feeding behaviour of dairy cows. Feed intake in dairy cows ...

  6. Markovian Search Games in Heterogeneous Spaces

    SciTech Connect (OSTI)

    Griffin, Christopher H [ORNL

    2009-01-01

    We consider how to search for a mobile evader in a large heterogeneous region when sensors are used for detection. Sensors are modeled using probability of detection. Due to environmental effects, this probability will not be constant over the entire region. We map this problem to a graph search problem and, even though deterministic graph search is NP-complete, we derive a tractable, optimal, probabilistic search strategy. We do this by defining the problem as a differential game played on a Markov chain. We prove that this strategy is optimal in the sense of Nash. Simulations of an example problem illustrate our approach and verify our claims.

  7. Heterogeneously integrated microsystem-on-a-chip

    DOE Patents [OSTI]

    Chanchani, Rajen (Albuquerque, NM)

    2008-02-26

    A microsystem-on-a-chip comprises a bottom wafer of normal thickness and a series of thinned wafers can be stacked on the bottom wafer, glued and electrically interconnected. The interconnection layer comprises a compliant dielectric material, an interconnect structure, and can include embedded passives. The stacked wafer technology provides a heterogeneously integrated, ultra-miniaturized, higher performing, robust and cost-effective microsystem package. The highly integrated microsystem package, comprising electronics, sensors, optics, and MEMS, can be miniaturized both in volume and footprint to the size of a bottle-cap or less.

  8. Commercial Feeding Stuffs, from September 1, 1949 to August 31, 1950. 

    E-Print Network [OSTI]

    Holleman, M. P.; Brock, F. D.

    1950-01-01

    . ( sho - *, :hemica1 standards for special-purpose mixed feeds a1 kwn, together with additional information on the requirt nts of the Texas Feed Law, the composition of feeds an thods of calculating guaranties of mixed feeds. CONTENTS Digest... .................................................. 7 Definitions and Standards ........................................ 8 .................... Method of Calculating Guaranties olf Mixed Feeds 8 .............................................. Suggested Guaranties 9 Special-purpose Mixed Feeds...

  9. Characterization of Feeding Behavior Traits and Associations with Performance and Feed Efficiency in Finishing Beef Cattle 

    E-Print Network [OSTI]

    Mendes, Egleu Diomedes Marinho

    2011-10-21

    ., 2000). Many studies have examined the relationships between feeding behavior traits and feed efficiency in poultry (Van Eerden et al., 2004), swine (de Haer et al., 1993; Rauw et al., 2006a, b; Von Felde et al., 1996), sheep (Cammack et al., 2005.... (2007); eRauw et al. (2006a); fRauw et al. (2006b); gRobinson and Oddy (2004); hSchwartzkopf-Genswein et al. (2002); iVon Felde et al. (1996) Bold values are correlated with P < 0.05 There were no specification for the P-value for the phenotypic...

  10. Nutritional and Feeding Management of Broodmares 

    E-Print Network [OSTI]

    Gibbs, Pete G.; Potter, Gary D.; Vogelsang, M. M.

    2005-04-13

    well-be ing is an im por tant part of an effective broodmare op er a tion. Broodmares have specifi c nu tri - tion al re quire ments that differ from other class es of horses. There are differences both in the amount of feed mares need... tion relative to the effect of nu tri tion on re pro - duc tive per for mance in mares. It has been clearly shown that mares should be kept in good condition the year round, and es pe cial ly as breed ing season approaches. By check ing...

  11. United Nations Foundation Feed | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowa (Utility Company) JumpGTZ ClimateFeed Jump to: navigation, search

  12. fed feed families | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal GasAdministration Medal01 Sandia4) August 20123/%2A en46Afed feed families | National

  13. Joint Implementation Network Feed | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam:onItron (California)Joint Implementation Network Feed Jump

  14. Burco Farm and Feed | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin:PontiacInformationAssessment ToolkitBullBurco Farm and Feed

  15. Feds feed Families | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum12, 2015Executive Order14,Energy 9, 2013Federal TaxMAY 3-4,Into HighFeds feed

  16. Intratumor heterogeneity alters most effective drugs in designed combinations

    E-Print Network [OSTI]

    Zhao, Boyang

    The substantial spatial and temporal heterogeneity observed in patient tumors poses considerable challenges for the design of effective drug combinations with predictable outcomes. Currently, the implications of tissue ...

  17. Pool Heterogeneity and the Valuation of Mortgage-Backed Securities

    E-Print Network [OSTI]

    Stanton, Richard

    1992-01-01

    Van Drunen. “Pricing Mortgage Pools with Heterogeneous Mort-shows proportion of pools in sample with estimated ? fallingmethodology for deriving pool-speci?c mortgage-backed

  18. Optimization of the dynamic behavior of strongly nonlinear heterogeneous materials

    E-Print Network [OSTI]

    Herbold, Eric B.

    2008-01-01

    dissimilar granular materials) and for optimization of shockOptimization of Dynamic Behavior in Heterogeneous Materials (band-gap materials and structures by topology optimization.

  19. Feedbacks between hydrological heterogeneity and bioremediation induced biogeochemical transformations

    E-Print Network [OSTI]

    Englert, A.

    2009-01-01

    Water Resources Research 2008, 44, W10412, doi:10.1029/2007WR006425. Supporting Information Feedbacks Between Hydrological Heterogeneity and Bioremediation

  20. Commercial Feeding Stuffs, September 1, 1940 to August 31, 1941. 

    E-Print Network [OSTI]

    Sullivan, James; Fuller, F. D. (Frederick Driggs)

    1941-01-01

    .44 11.59 11.24 9.85 6.03 FEEDS Wheat Gray Shorts and Screenings.._. Wheat Mixed Feed Wheat Mixed Feed and Screenings_.- Dried Whey 13.34 15.55 27.79 5.87 6.07 7.54 6.27 6.00 18.60 21.65 31.90 6.33 5.72 4.07 4.26 4.46 1.69 4...

  1. The Salt or Sodium Chloride Content of Feeds 

    E-Print Network [OSTI]

    Fraps, G. S. (George Stronach); Lomanitz, S. (Sebastian)

    1920-01-01

    STATION AGRICULTURAL AND MECHANICAL COLLEGE OF TEXAS W. B. BIZZELL, Preeident BULLETIN NO. 271 OCTOBER, 1920 DIVISION OF CHEMISTRY THE SALT OR SODIUM CHLORIDE CONTENT OF FEEDS B. YOUNGBLOOD, DIRECTOK COLLEGE STATION, BRAZOS COUNTT, TEXAS I..... ................... Summary ancl conclusions. Page. l1 [Blank Page in Original Bulletin] BULLETIN XO. 271. OCTOBE- '"On THE SALT OR SODIUM CHLORIDE CONTENT OF FEI The Texas feed law requires the statement of the ingredients of many mixed feeds. Common salt or sodium...

  2. Department of Energy Manual 435.1-1 Waste Incidental To Reprocessing Determination For The West Valley Demonstration Project Concentrator Feed Makeup Tank and Melter Feed Hold Tank

    Broader source: Energy.gov [DOE]

    Department of Energy Manual 435.1-1 Waste Incidental To Reprocessing Determination For The West Valley Demonstration Project Concentrator Feed Makeup Tank and Melter Feed Hold Tank

  3. Heterogeneous Force Chains in Cellularized Biopolymer Network

    E-Print Network [OSTI]

    Liang, Long; Sun, Bo; Jiao, Yang

    2015-01-01

    Biopolymer Networks play an important role in coordinating and regulating collective cellular dynamics via a number of signaling pathways. Here, we investigate the mechanical response of a model biopolymer network due to the active contraction of embedded cells. Specifically, a graph (bond-node) model derived from confocal microscopy data is used to represent the network microstructure, and cell contraction is modeled by applying correlated displacements at specific nodes, representing the focal adhesion sites. A force-based stochastic relaxation method is employed to obtain force-balanced network under cell contraction. We find that the majority of the forces are carried by a small number of heterogeneous force chains emitted from the contracting cells. The force chains consist of fiber segments that either possess a high degree of alignment before cell contraction or are aligned due to the reorientation induced by cell contraction. Large fluctuations of the forces along different force chains are observed. ...

  4. Thermal Maps of Gases in Heterogeneous Reactions

    E-Print Network [OSTI]

    Jarenwattananon, Nanette N; Otto, Trenton; Melkonian, Arek; Morris, William; Burt, Scott R; Yaghi, Omar M; Bouchard, Louis-S

    2015-01-01

    Over 85% of all chemical industry products are made using catalysts, with the overwhelming majority of these employing heterogeneous catalysts functioning at the gas-solid interface. Consequently, optimizing catalytic reactor design attracts much effort. Such optimization relies on heat transfer and fluid dynamics modeling coupled to surface reaction kinetics. The complexity of these systems demands many approximations, which can only be tested with experimental observations of quantities such as temperature, pressure, concentrations, flow rates, etc. One essential measurement is a map of the spatial variation in temperature throughout the catalyst bed. We present here the first non-invasive maps of gas temperatures in catalyst-filled reactors, including high spatial resolution maps in microreactors enabled by parahydrogen. The thermal maps reveal energy flux patterns whose length scale correlates with the catalyst packing. By exploiting the motional averaging under a weak applied magnetic-field gradient, the...

  5. Dynamics on modular networks with heterogeneous correlations

    SciTech Connect (OSTI)

    Melnik, Sergey [MACSI, Department of Mathematics and Statistics, University of Limerick (Ireland) [MACSI, Department of Mathematics and Statistics, University of Limerick (Ireland); Oxford Centre for Industrial and Applied Mathematics, Mathematical Institute, University of Oxford, Oxford OX2 6GG (United Kingdom); CABDyN Complexity Centre, University of Oxford, Oxford OX1 1HP (United Kingdom); Porter, Mason A. [Oxford Centre for Industrial and Applied Mathematics, Mathematical Institute, University of Oxford, Oxford OX2 6GG (United Kingdom) [Oxford Centre for Industrial and Applied Mathematics, Mathematical Institute, University of Oxford, Oxford OX2 6GG (United Kingdom); CABDyN Complexity Centre, University of Oxford, Oxford OX1 1HP (United Kingdom); Mucha, Peter J. [Department of Mathematics, Carolina Center for Interdisciplinary Applied Mathematics, University of North Carolina, Chapel Hill, North Carolina 27599-3250 (United States) [Department of Mathematics, Carolina Center for Interdisciplinary Applied Mathematics, University of North Carolina, Chapel Hill, North Carolina 27599-3250 (United States); Institute for Advanced Materials, Nanoscience and Technology, University of North Carolina, Chapel Hill, North Carolina 27599-3216 (United States); Gleeson, James P. [MACSI, Department of Mathematics and Statistics, University of Limerick (Ireland)] [MACSI, Department of Mathematics and Statistics, University of Limerick (Ireland)

    2014-06-15

    We develop a new ensemble of modular random graphs in which degree-degree correlations can be different in each module, and the inter-module connections are defined by the joint degree-degree distribution of nodes for each pair of modules. We present an analytical approach that allows one to analyze several types of binary dynamics operating on such networks, and we illustrate our approach using bond percolation, site percolation, and the Watts threshold model. The new network ensemble generalizes existing models (e.g., the well-known configuration model and Lancichinetti-Fortunato-Radicchi networks) by allowing a heterogeneous distribution of degree-degree correlations across modules, which is important for the consideration of nonidentical interacting networks.

  6. Heterogeneous metasurface for high temperature selective emission

    SciTech Connect (OSTI)

    Woolf, D., E-mail: dwoolf@psicorp.com; Hensley, J. [Physical Sciences, Inc., 20 New England Business Center, Andover, Massachusetts 01810 (United States); Cederberg, J. G.; Bethke, D. T.; Grine, A. D.; Shaner, E. A. [Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185 (United States)

    2014-08-25

    We demonstrate selective emission from a heterogeneous metasurface that can survive repeated temperature cycling at 1300?K. Simulations, fabrication, and characterization were performed for a cross-over-a-backplane metasurface consisting of platinum and alumina layers on a sapphire substrate. The structure was stabilized for high temperature operation by an encapsulating alumina layer. The geometry was optimized for integration into a thermophotovoltaic (TPV) system, and was designed to have its emissivity matched to the external quantum efficiency spectrum of 0.6?eV InGaAs TPV material. We present spectral measurements of the metasurface that result in a predicted 22% optical-to-electrical power conversion efficiency in a simplified model at 1300?K. Furthermore, this broadly adaptable selective emitter design can be easily integrated into full-scale TPV systems.

  7. Accelerating Subsurface Transport Simulation on Heterogeneous Clusters

    SciTech Connect (OSTI)

    Villa, Oreste; Gawande, Nitin A.; Tumeo, Antonino

    2013-09-23

    Reactive transport numerical models simulate chemical and microbiological reactions that occur along a flowpath. These models have to compute reactions for a large number of locations. They solve the set of ordinary differential equations (ODEs) that describes the reaction for each location through the Newton-Raphson technique. This technique involves computing a Jacobian matrix and a residual vector for each set of equation, and then solving iteratively the linearized system by performing Gaussian Elimination and LU decomposition until convergence. STOMP, a well known subsurface flow simulation tool, employs matrices with sizes in the order of 100x100 elements and, for numerical accuracy, LU factorization with full pivoting instead of the faster partial pivoting. Modern high performance computing systems are heterogeneous machines whose nodes integrate both CPUs and GPUs, exposing unprecedented amounts of parallelism. To exploit all their computational power, applications must use both the types of processing elements. For the case of subsurface flow simulation, this mainly requires implementing efficient batched LU-based solvers and identifying efficient solutions for enabling load balancing among the different processors of the system. In this paper we discuss two approaches that allows scaling STOMP's performance on heterogeneous clusters. We initially identify the challenges in implementing batched LU-based solvers for small matrices on GPUs, and propose an implementation that fulfills STOMP's requirements. We compare this implementation to other existing solutions. Then, we combine the batched GPU solver with an OpenMP-based CPU solver, and present an adaptive load balancer that dynamically distributes the linear systems to solve between the two components inside a node. We show how these approaches, integrated into the full application, provide speed ups from 6 to 7 times on large problems, executed on up to 16 nodes of a cluster with two AMD Opteron 6272 and a Tesla M2090 per node.

  8. On the Throughput Capacity of Heterogeneous Wireless Networks

    E-Print Network [OSTI]

    Latchman, Haniph A.

    On the Throughput Capacity of Heterogeneous Wireless Networks Pan Li, Member, IEEE, and Yuguang of wireless networks. However, it is commonly assumed that all nodes in the network are identical. The issue of heterogeneous wireless networks with general network settings. Specifically, we consider an extended network

  9. Dynamic Resource Management in Energy Constrained Heterogeneous Computing

    E-Print Network [OSTI]

    Maciejewski, Anthony A.

    Dynamic Resource Management in Energy Constrained Heterogeneous Computing Systems Using Voltage) in a manner that exploits the heterogeneity of the resources and tasks while considering the energy the resources are wireless and mobile, the limited battery capacity becomes a constraint and power or energy

  10. Autonomous Demand Response in Heterogeneous Smart Grid Topologies

    E-Print Network [OSTI]

    Mohsenian-Rad, Hamed

    1 Autonomous Demand Response in Heterogeneous Smart Grid Topologies Hamed Narimani and Hamed-mails: narimani-hh@ec.iut.ac.ir and hamed@ee.ucr.edu Abstract--Autonomous demand response (DR) is scalable and has demand response systems in heterogeneous smart grid topologies. Keywords: Autonomous demand response

  11. Dynamic Lung Morphology of Methacholine-Induced Heterogeneous Bronchoconstriction

    E-Print Network [OSTI]

    Dynamic Lung Morphology of Methacholine-Induced Heterogeneous Bronchoconstriction Ben T. Chen and G). The method provides direct visualization of the venti- lated regions within the lung. Heterogeneous bronchoconstric- tion following the i.v. MCh injection was evident using this technique. These 3 He dynamic lung

  12. Global Cost Diversity Aware Dispatch Algorithm for Heterogeneous Data Centers

    E-Print Network [OSTI]

    Fedorova, Alexandra

    Global Cost Diversity Aware Dispatch Algorithm for Heterogeneous Data Centers Ananth Narayan S. ans centers located across the globe. These data centers often house a heterogeneous computing infrastruc exploits both the data center het- erogeneity and global electricity market diversity to reduce data center

  13. Cooperative Decentralized Resource Allocation in Heterogeneous Wireless Access Medium

    E-Print Network [OSTI]

    Zhuang, Weihua

    1 Cooperative Decentralized Resource Allocation in Heterogeneous Wireless Access Medium Muhammad--In this paper, radio resource allocation in a hetero- geneous wireless access medium is investigated. Mobile the performance tradeoffs of the proposed algorithm. Index Terms--Heterogeneous wireless networks, resource allo

  14. Thermal Properties of Graphene-Copper-Graphene Heterogeneous Pradyumna Goli,

    E-Print Network [OSTI]

    Thermal Properties of Graphene-Copper-Graphene Heterogeneous Films Pradyumna Goli, Hao Ning that gra- phene-Cu-graphene heterogeneous films reveal strongly enhanced thermal conductivity as compared to the reference Cu and annealed Cu films. Chemical vapor deposition of a single atomic plane of graphene on both

  15. An Efficient Stochastic Clustering Auction for Heterogeneous Robot Teams

    E-Print Network [OSTI]

    Barbu, Adrian

    An Efficient Stochastic Clustering Auction for Heterogeneous Robot Teams Kai Zhang and Emmanuel G for effective coordination of heterogeneous robotic systems have numerous applications. For example, they can be used for efficient task allocation for teams of robots in many application domains [1], [2] such as col

  16. Process Migration for Heterogeneous Distributed Systems Matt Bishop

    E-Print Network [OSTI]

    Process Migration for Heterogeneous Distributed Systems Matt Bishop Department of Computer Science and mechanisms for migrating processes in a distributed system become more complicated in a heterogeneous the means to migrate processes to the idle resources. In this paper, we present a graph model for single

  17. THE EFFECT OF HETEROGENEITY IN TEAMS OF 100+ MOBILE ROBOTS

    E-Print Network [OSTI]

    Parker, Lynne E.

    THE EFFECT OF HETEROGENEITY IN TEAMS OF 100+ MOBILE ROBOTS Lynne E. Parker Department of Computer Science The University of Tennessee Knoxville, Tennessee USA parker@cs.utk.edu in Multi-Robot Systems for Distributed Robotics (SDR) Program, aimed at the practical implementation of a team of 100+ heterogeneous

  18. Heterogeneous Hardware Accelerator Architecture for Streaming Image Processing

    E-Print Network [OSTI]

    Bertels, Koen

    Heterogeneous Hardware Accelerator Architecture for Streaming Image Processing Cuong PhamCuong,Z.Al-Ars,K.L.M.Bertels}@tudelft.nl Abstract--This paper proposes a heterogeneous hardware-processed on a host processor and sent to hardware kernels. The host processor and the hardware kernels process

  19. An Availability-Aware Task Scheduling Strategy for Heterogeneous Systems

    E-Print Network [OSTI]

    Xie, Tao

    An Availability-Aware Task Scheduling Strategy for Heterogeneous Systems Xiao Qin, Member, IEEE, and Tao Xie, Member, IEEE Abstract--High availability is a key requirement in the design and development of heterogeneous systems where processors operate at different speeds and are not continuously available

  20. Automatic feed system for ultrasonic machining

    DOE Patents [OSTI]

    Calkins, Noel C. (Los Alamos, NM)

    1994-01-01

    Method and apparatus for ultrasonic machining in which feeding of a tool assembly holding a machining tool toward a workpiece is accomplished automatically. In ultrasonic machining, a tool located just above a workpiece and vibrating in a vertical direction imparts vertical movement to particles of abrasive material which then remove material from the workpiece. The tool does not contact the workpiece. Apparatus for moving the tool assembly vertically is provided such that it operates with a relatively small amount of friction. Adjustable counterbalance means is provided which allows the tool to be immobilized in its vertical travel. A downward force, termed overbalance force, is applied to the tool assembly. The overbalance force causes the tool to move toward the workpiece as material is removed from the workpiece.

  1. Low Frequency Scattering Resonance Wave in Strong Heterogeneity

    E-Print Network [OSTI]

    Liu, Yinbin

    2015-01-01

    Multiple scattering of wave in strong heterogeneity can cause resonance-like wave phenomenon where signal exhibits low frequency, high intensity, and slowly propagating velocity. For example, long period event in volcanic seismology and surface plasmon wave and quantum Hall effect in wave-particle interactions. Collective behaviour in a many-body system is usually thought to be the source for generating the anomaly. However, the detail physical mechanism is not fully understood. Here I show by wave field modeling for microscopic bubble cloud model and 1D heterogeneity that the anomaly is related to low frequency scattering resonance happened in transient regime. This low frequency resonance is a kind of wave coherent scattering enhancement phenomenon in strongly-scattered small-scale heterogeneity. Its resonance frequency is inversely proportional to heterogeneous scale and contrast and will further shift toward lower frequency with random heterogeneous scale and velocity fluctuations. Low frequency scatterin...

  2. Commercializing Biorefineries The Path Forward

    E-Print Network [OSTI]

    Deployment Increasing Industry Participation Fundamental R&D U.S. Biomass Resource Potentials · Corn (largest. Russo, Jr. Office of the Biomass Program Energy Efficiency and Renewable Energy April 25, 2007 Conversion of Available Feedstocks · "Billion Ton" study indicates that enough biomass is potentially

  3. UOP Pilot-Scale Biorefinery

    Broader source: Energy.gov [DOE]

    This project by UOP will leverage two commercially proven core technologies, pyrolysis and hydroconversion, into an integrated platform.

  4. Analysis of Integrated Tropical Biorefineries

    E-Print Network [OSTI]

    the integration of an anaerobic digester into each biochemical platform technology. The combustion of biogas not rely on biogas combustion to be thermally self- sufficient. However, their output of excess electricity

  5. Analysis of Integrated Tropical Biorefineries

    E-Print Network [OSTI]

    the integration of an anaerobic digester into each biochemical platform technology. The combustion of biogas to generate process heat and electricity allows the starch platform technology to become thermally self not rely on biogas combustion to be thermally self- sufficient. However, their output of excess electricity

  6. Sapphire Energy - Integrated Algal Biorefinery

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURINGEnergy BillsNo. 195 -RobSSL INDepartment of Energy San10Sapphire Energy, Inc.

  7. Solazyme Pilot-Scale Biorefinery

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURINGEnergy BillsNo.Hydrogen4Energy SmoothEquipmentSolar PVEquipment Salesof2011

  8. Integrated Biorefineries | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACT EVALUATION PLANIs gravity aOverview ARM ClimateEnergyInterim

  9. Integrated Biorefineries | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterFinancial OpportunitiesDepartmentInformationDepartment

  10. Alpena Biorefinery | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels DataEnergy Webinar:I Due Date Adv.Alison Markovitz About Us AlisonAll

  11. Chemistry & Biology Hemoglobin Digestion in Blood-Feeding Ticks

    E-Print Network [OSTI]

    Bogyo, Matthew

    Chemistry & Biology Article Hemoglobin Digestion in Blood-Feeding Ticks: Mapping a Multipeptidase: mares@uochb.cas.cz DOI 10.1016/j.chembiol.2009.09.009 SUMMARY Hemoglobin digestion is an essential transmission is linked to the physiology of blood feeding and digestion. Blood provides a rich source

  12. FEED-IN TARIFFS AND OFFSHORE WIND POWER DEVELOPMENT

    E-Print Network [OSTI]

    Firestone, Jeremy

    FEED-IN TARIFFS AND OFFSHORE WIND POWER DEVELOPMENT Prepared by Jon Lilley, Blaise Sheridan, Dawn.......................................................................................................................... 25 FERC Clarification as Applied to Offshore Wind........................................................................................................................ 28 #12; 3 Feed-in Tariffs and Offshore Wind Power Development Prepared Pursuant to DOE Grant Em

  13. Application of New Feeding Rules To Risering of Steel Castings

    E-Print Network [OSTI]

    Beckermann, Christoph

    and predicted shrinkage porosity in the castings to the expected level of porosity based on the new feeding1 Application of New Feeding Rules To Risering of Steel Castings Doug Smith , Tony Faivre , Shouzhu Engineering , ABC-NACO TECHNOLOGIES, Lombard, IL1 Project Engineer - Casting Simulation, ABC-NACO TECHNOLOGIES

  14. MODELING OF POROSITY FORMATION AND FEEDING FLOW IN STEEL CASTING

    E-Print Network [OSTI]

    Beckermann, Christoph

    , or even larger shrinkage cavities found in inadequately fed cast sections. Microporosity can cause leaksMODELING OF POROSITY FORMATION AND FEEDING FLOW IN STEEL CASTING Kent D. Carlson, Zhiping Lin pressure, feeding flow, and porosity formation and growth in steel castings during solidification

  15. Inline evenflow material distributor for pneumatic material feed systems

    DOE Patents [OSTI]

    Thiry, Michael J. (Oakdale, CA)

    2007-02-20

    An apparatus for reducing clogs in a pneumatic material feed line, such as employed in abrasive waterjet machining systems, by providing an evenflow feed of material therethrough. The apparatus preferably includes a hollow housing defining a housing volume and having an inlet capable of connecting to an upstream portion of the pneumatic material feed line, an outlet capable of connecting to a downstream portion of the pneumatic material feed line, and an air vent located between the inlet and outlet for venting excess air pressure out from the housing volume. A diverter, i.e. an impingement object, is located at the inlet and in a path of incoming material from the upstream portion of the pneumatic material feed line, to break up clumps of ambient moisture-ridden material impinging on the diverter. And one or more filter screens is also preferably located in the housing volume to further break up clumps and provide filtering.

  16. Heterogeneous Force Chains in Cellularized Biopolymer Network

    E-Print Network [OSTI]

    Long Liang; Christopher Jones; Bo Sun; Yang Jiao

    2015-08-18

    Biopolymer Networks play an important role in coordinating and regulating collective cellular dynamics via a number of signaling pathways. Here, we investigate the mechanical response of a model biopolymer network due to the active contraction of embedded cells. Specifically, a graph (bond-node) model derived from confocal microscopy data is used to represent the network microstructure, and cell contraction is modeled by applying correlated displacements at specific nodes, representing the focal adhesion sites. A force-based stochastic relaxation method is employed to obtain force-balanced network under cell contraction. We find that the majority of the forces are carried by a small number of heterogeneous force chains emitted from the contracting cells. The force chains consist of fiber segments that either possess a high degree of alignment before cell contraction or are aligned due to the reorientation induced by cell contraction. Large fluctuations of the forces along different force chains are observed. Importantly, the decay of the forces along the force chains is significantly slower than the decay of radially averaged forces in the system. These results suggest that the fibrous nature of biopolymer network structure can support long-range force transmission and thus, long-range mechanical signaling between cells.

  17. Coordinated Collaboration between Heterogeneous Distributed Energy Resources

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

    Abdollahy, Shahin; Lavrova, Olga; Mammoli, Andrea

    2014-01-01

    A power distribution feeder, where a heterogeneous set of distributed energy resources is deployed, is examined by simulation. The energy resources include PV, battery storage, natural gas GenSet, fuel cells, and active thermal storage for commercial buildings. The resource scenario considered is one that may exist in a not too distant future. Two cases of interaction between different resources are examined. One interaction involves a GenSet used to partially offset the duty cycle of a smoothing battery connected to a large PV system. The other example involves the coordination of twenty thermal storage devices, each associated with a commercial building.more »Storage devices are intended to provide maximum benefit to the building, but it is shown that this can have a deleterious effect on the overall system, unless the action of the individual storage devices is coordinated. A network based approach is also introduced to calculate some type of effectiveness metric to all available resources which take part in coordinated operation. The main finding is that it is possible to achieve synergy between DERs on a system; however this required a unified strategy to coordinate the action of all devices in a decentralized way.« less

  18. The building blocks of dynamical heterogeneities in dense granular media

    E-Print Network [OSTI]

    R. Candelier; O. Dauchot; G. Biroli

    2009-01-22

    We investigate experimentally the connection between short time dynamics and long time dynamical heterogeneities within a dense granular media under cyclic shear. We show that dynamical heterogeneities result from a two timescales process. Short time but already collective events consisting in clustered cage jumps concentrate most of the non affine displacements. On larger timescales such clusters appear aggregated both temporally and spatially in avalanches which eventually build the large scales dynamical heterogeneities. Our results indicate that facilitation plays an important role in the relaxation process although it does not appear to be conserved as proposed in many models studied in the literature.

  19. BLACK HOLE FORAGING: FEEDBACK DRIVES FEEDING

    SciTech Connect (OSTI)

    Dehnen, Walter; King, Andrew, E-mail: wd11@leicester.ac.uk, E-mail: ark@astro.le.ac.uk [Theoretical Astrophysics Group, University of Leicester, Leicester LE1 7RH (United Kingdom)] [Theoretical Astrophysics Group, University of Leicester, Leicester LE1 7RH (United Kingdom)

    2013-11-10

    We suggest a new picture of supermassive black hole (SMBH) growth in galaxy centers. Momentum-driven feedback from an accreting hole gives significant orbital energy, but little angular momentum to the surrounding gas. Once central accretion drops, the feedback weakens and swept-up gas falls back toward the SMBH on near-parabolic orbits. These intersect near the black hole with partially opposed specific angular momenta, causing further infall and ultimately the formation of a small-scale accretion disk. The feeding rates into the disk typically exceed Eddington by factors of a few, growing the hole on the Salpeter timescale and stimulating further feedback. Natural consequences of this picture include (1) the formation and maintenance of a roughly toroidal distribution of obscuring matter near the hole; (2) random orientations of successive accretion disk episodes; (3) the possibility of rapid SMBH growth; (4) tidal disruption of stars and close binaries formed from infalling gas, resulting in visible flares and ejection of hypervelocity stars; (5) super-solar abundances of the matter accreting on to the SMBH; and (6) a lower central dark-matter density, and hence annihilation signal, than adiabatic SMBH growth implies. We also suggest a simple subgrid recipe for implementing this process in numerical simulations.

  20. Apparatus for feeding an MTG conversion reactor

    SciTech Connect (OSTI)

    Mao, C.H.; Schreiner, M. Jr.

    1989-05-02

    A continuous system is described comprising: first distillation means; second distillation means; pressurized chemical reactor means containing dehydration catalyst; methanol-to-gasoline conversion reactor means containing conversion catalyst; means for passing a crude methanol feed containing a minor amount of water to an upper stage of the first distillation means; means for maintaining the first distillation means at a pressure at least equal to the pressure of the pressurized chemical reactor means; means for withdrawing dehydration product from pressurized chemical reactor means; means for adding dehydration product to an intermediate stage of the first distillation means; means for withdrawing from first distillation means a first overhead stream comprising essentially water-free dimethylether; means for withdrawing from first distillation means a first bottoms stream containing aqueous methanol; means for passing the dimethylether-containing first overhead stream from the first distillation means to methanol-to-gasoline conversion reactor means; means for passing the first bottoms stream containing aqueous methanol from the first distillation means to the second distillation means; means for withdrawing from second distillation means a second overhead stream comprising methanol; means for withdrawing from second distillation means a second bottoms stream comprising water; means for passing the second overhead methanol stream to pressurized chemical reactor means; and means for recycling the dehydration product to an intermediate stage of the first distillation means.

  1. In vitro gas production provides effective method for assessing ruminant feeds

    E-Print Network [OSTI]

    Getachew, Girma; DePeters, Edward J.; Robinson, Peter H.

    2004-01-01

    in numerous experiments. Ani- mal experiments will continuevalue of ruminant feeds. Ani- mal Feed Sci Technol 102:169–value, or energy content, of an ani- mal feed is determined

  2. Magnetically-Assisted Statistical Assembly - a new heterogeneous integration technique

    E-Print Network [OSTI]

    Fonstad, Clifton G. Jr.

    This paper presents a new technique for the monolithic heterogeneous integration of compound semiconductor devices with silicon integrated circuits, and establishes the theoretical foundation for a key element of the ...

  3. An approach to composing web services with context heterogeneity

    E-Print Network [OSTI]

    Madnick, Stuart E.

    The potential benefits of Web services composition heavily rely on semantic interoperability, i.e., the ability to exchange data meaningfully amongst Web services. Context heterogeneity, which refers to different implicit ...

  4. Dynamic sensor tasking in heterogeneous, mobile sensor networks

    E-Print Network [OSTI]

    Jones, Peter B. (Peter B.), S.M., Massachusetts Institute of Technology

    2005-01-01

    Modern sensor environments often attempt to combine several sensors into a single sensor network. The nodes of this network are generally heterogeneous and may vary with respect to sensor complexity, sensor operational ...

  5. Discrete Feature Approach for Heterogeneous Reservoir Production Enhancement

    SciTech Connect (OSTI)

    Dershowitz, William S.; Curran, Brendan; Einstein, Herbert; LaPointe, Paul; Shuttle, Dawn; Klise, Kate

    2002-07-26

    The report presents summaries of technology development for discrete feature modeling in support of the improved oil recovery (IOR) for heterogeneous reservoirs. In addition, the report describes the demonstration of these technologies at project study sites.

  6. PARTITIONED ANALYSIS FOR DIMENSIONALLY-HETEROGENEOUS HYDRAULIC NETWORKS*

    E-Print Network [OSTI]

    Buscaglia, Gustavo C.

    PARTITIONED ANALYSIS FOR DIMENSIONALLY-HETEROGENEOUS HYDRAULIC NETWORKS* JORGE S. LEIVA , PABLO J for which this procedure is envisaged arises when modeling hydraulic networks in which complex and simple

  7. Increasing Stability Reduces Conformational Heterogeneity in a Protein Folding

    E-Print Network [OSTI]

    Increasing Stability Reduces Conformational Heterogeneity in a Protein Folding Intermediate, the results show that protein folding intermediates are ensembles of different structural forms direct experi- mental evidence in support of a basic tenet of energy landscape theory for protein folding

  8. Adapting a delay-based protocol to heterogeneous environments 

    E-Print Network [OSTI]

    Kotla, Kiran

    2008-10-10

    We investigate the issues in making a delay-based protocol adaptive to heterogeneous environments. We assess and address the problems a delay-based protocol faces when competing with a loss-based protocol such as TCP. We ...

  9. OSCAR Parallelizing Compiler Cooperative Heterogeneous Multi-core Architecture

    E-Print Network [OSTI]

    Kasahara, Hironori

    OSCAR Parallelizing Compiler Cooperative Heterogeneous Multi-core Architecture Akihiro Hayashi, powerful parallelizing compiler for hetero- geneous multi-core architectures is expected. Furthermore, cooperative work between parallelizing compiler and hetero- geneous multi-core architectures is important

  10. A Parallelizing Compiler Cooperative Heterogeneous Multicore Processor Architecture

    E-Print Network [OSTI]

    Kasahara, Hironori

    A Parallelizing Compiler Cooperative Heterogeneous Multicore Processor Architecture Yasutaka Wada and a parallelizing com- piler is important. This paper proposes a compiler cooperative hetero- geneous multicore architecture and parallelizing compilation scheme for it. Performance of the proposed scheme is evaluated

  11. Stabilization of Ion Concentration Polarization Using a Heterogeneous Nanoporous Junction

    E-Print Network [OSTI]

    Kim, Pilnam

    We demonstrate a recycled ion-flux through heterogeneous nanoporous junctions, which induce stable ion concentration polarization with an electric field. The nanoporous junctions are based on integration of ionic hydrogels ...

  12. The variation of apparent crown size and canopy heterogeneity across

    E-Print Network [OSTI]

    Malhi, Yadvinder

    , 2 IRD-UMR Botanique et Bioinformatique de l'Architecture des Plantes (AMAP), Boulevard de la Lironde and Africa. Some regions show significantly greater canopy heterogeneity, a feature that may be related

  13. Effective hydraulic conductivity of bounded, strongly heterogeneous porous media

    E-Print Network [OSTI]

    Tartakovsky, Daniel M.

    Effective hydraulic conductivity of bounded, strongly heterogeneous porous media Evangelos K of Arizona, Tucson Abstract. We develop analytical expressions for the effective hydraulic conductivity Ke boundaries. The log hydraulic conductivity Y forms a Gaussian, statistically homogeneous and anisotropic

  14. Acid Fracturing Feasibility Study for Heterogeneous Carbonate Formation 

    E-Print Network [OSTI]

    Suleimenova, Assiya

    2015-03-03

    Acid fracturing is a stimulation technique that is commonly used by the industry to increase productivity or injectivity of wells in carbonate reservoirs. To determine a feasibility of acid fracturing treatment for a heterogeneous formation...

  15. MODELING PHOTOSYNTHESIS OF HETEROGENEOUS ROSE CROP CANOPIES IN THE GREENHOUSE

    E-Print Network [OSTI]

    Lieth, J. Heinrich

    MODELING PHOTOSYNTHESIS OF HETEROGENEOUS ROSE CROP CANOPIES IN THE GREENHOUSE Soo-Hyung Kim and J training system ("bent canopy") is widely used in greenhouse rose production. The bent canopy consists

  16. Entrainment of heterogeneous glycolytic oscillations in single cells

    E-Print Network [OSTI]

    Gustavsson, A -K; Mehlig, B; Goksör, M

    2015-01-01

    Cell signaling, gene expression, and metabolism are affected by cell-cell heterogeneity and random changes in the environment. The effects of such fluctuations on cell signaling and gene expression have recently been studied intensively using single-cell experiments. In metabolism heterogeneity may be particularly important because it may affect synchronisation of metabolic oscillations, an important example of cell-cell communication. This synchronisation is notoriously difficult to describe theoretically as the example of glycolytic oscillations shows: neither is the mechanism of glycolytic synchronisation understood nor the role of cell-cell heterogeneity. To pin down the mechanism and to assess its robustness and universality we have experimentally investigated the entrainment of glycolytic oscillations in individual yeast cells by periodic external perturbations. We find that oscillatory cells synchronise through phase shifts and that the mechanism is insensitive to cell heterogeneity (robustness) and si...

  17. The Texas- Oklahoma Cattle Feeding Industry: Structure and Operational Characteristics. 

    E-Print Network [OSTI]

    Dietrich, Raymond A.

    1968-01-01

    and Mississippi were not published until 1960. Source: Cattle on Feed, U.S. Dept. Agri., Crop. Rpt. Bd., Stat. Rptg. Serv., Selected issues. :ABLE 3. SIZE AND CAPACITY OF TEXAS CATTLE FEEDLOTS, JANU- ARY 1, 1955-68 1,000 head or more Less than 1,000 heod... Total Total Yeor Feedlots capacity Feedlots capacity 1.000 1,000 Number head Ncrmber head 'Estimated by authorities in the livestock and cattle feeding industry. Source: Texas Cattle on Feed, U.S. Dept. Agr., Crop Rpt. Bd., Stat. Rptg. Sew...

  18. Corn fiber hulls as a food additive or animal feed

    DOE Patents [OSTI]

    Abbas, Charles (Champaign, IL); Beery, Kyle E. (Decatur, IN); Cecava, Michael J. (Decatur, IN); Doane, Perry H. (Decatur, IN)

    2010-12-21

    The present invention provides a novel animal feed or food additive that may be made from thermochemically hydrolyzed, solvent-extracted corn fiber hulls. The animal feed or food additive may be made, for instance, by thermochemically treating corn fiber hulls to hydrolyze and solubilize the hemicellulose and starch present in the corn fiber hulls to oligosaccharides. The residue may be extracted with a solvent to separate the oil from the corn fiber, leaving a solid residue that may be prepared, for instance by aggolmerating, and sold as a food additive or an animal feed.

  19. Genetic heterogeneity in breast cancer: the road to personalized medicine?

    E-Print Network [OSTI]

    Baird, Richard D.; Caldas, Carlos

    2013-06-21

    , Alipaz J, Bauer MJ, Beare D, Butler A, Carter RJ, Chen L, Cox AJ, Edkins S, Kokko- Gonzales PI, Gormley NA, Grocock RJ, Haudenschild CD, Hims MM, James T, Jia M, Kingsbury Z, Leroy C, Marshall J, Menzies A, et al: A comprehensive catalogue of somatic... , Next-generation sequencing, W Personalized medicine, Heterogeneity The genetic heterogeneity seen in breast cancer has important clinical implications In 2008 it was estimated that the annual number of new breast cancer diagnoses globally...

  20. Genetic heterogeneity in breast cancer: the road to personalised medicine?

    E-Print Network [OSTI]

    Baird, Richard D.; Caldas, Carlos

    2013-06-18

    , Alipaz J, Bauer MJ, Beare D, Butler A, Carter RJ, Chen L, Cox AJ, Edkins S, Kokko- Gonzales PI, Gormley NA, Grocock RJ, Haudenschild CD, Hims MM, James T, Jia M, Kingsbury Z, Leroy C, Marshall J, Menzies A, et al: A comprehensive catalogue of somatic... . Keywords: Breast cancer, Next-generation sequencing, W Personalized medicine, Heterogeneity The genetic heterogeneity seen in breast cancer has important clinical implications In 2008 it was estimated that the annual number of new breast cancer diagnoses...

  1. Functional anatomy and feeding biomechanics of a giant Upper Jurassic pliosaur (Reptilia: Sauropterygia)

    E-Print Network [OSTI]

    Benton, Michael

    Functional anatomy and feeding biomechanics of a giant Upper Jurassic pliosaur (Reptilia and feeding biomechanics are poorly understood. A new, well-preserved pliosaur from the Kimmeridgian

  2. The heterogeneous gas with singular interaction: Generalized circular law and heterogeneous renormalized energy

    E-Print Network [OSTI]

    Luis Carlos Garcia del Molino; Khashayar Pakdaman; Jonathan Touboul

    2014-10-26

    We introduce and analyze $d$ dimensional Coulomb gases with random charge distribution and general external confining potential. We show that these gases satisfy a large deviations principle. The analysis of the minima of the rate function (which is the leading term of the energy) reveals that at equilibrium, the particle distribution is a generalized circular law (i.e. with spherical support but non-necessarily uniform distribution). In the classical electrostatic external potential, there are infinitely many minimizers of the rate function. The most likely macroscopic configuration is a disordered distribution in which particles are uniformly distributed (for $d=2$, the circular law), and charges are independent of the positions of the particles. General charge-dependent confining potentials unfold this degenerate situation: in contrast, the particle density is not uniform, and particles spontaneously organize according to their charge. In that picture the classical electrostatic potential appears as a transition at which order is lost. Sub-leading terms of the energy are derived: we show that these are related to an operator, generalizing the Coulomb renormalized energy, which incorporates the heterogeneous nature of the charges. This heterogeneous renormalized energy informs us about the microscopic arrangements of the particles, which are non-standard, strongly depending on the charges, and include progressive and irregular lattices.

  3. Qualitative Reasoning Feeding Back into Quantitative Model-Based Tracking

    E-Print Network [OSTI]

    Nebel, Bernhard

    Qualitative Reasoning Feeding Back into Quantitative Model-Based Tracking Christian K¨ohler, 1- bilize basic signal processing and pattern recognition processes like the reliable extraction of some

  4. Qualitative Reasoning Feeding Back into Quantitative ModelBased Tracking

    E-Print Network [OSTI]

    Nebel, Bernhard

    Qualitative Reasoning Feeding Back into Quantitative Model­Based Tracking Christian KË? ohler, 1­ bilize basic signal processing and pattern recognition processes like the reliable extraction of some

  5. Time phased alternate blending of feed coals for liquefaction

    DOE Patents [OSTI]

    Schweigharett, Frank (Allentown, PA); Hoover, David S. (New Tripoli, PA); Garg, Diwaker (Macungie, PA)

    1985-01-01

    The present invention is directed to a method for reducing process performance excursions during feed coal or process solvent changeover in a coal hydroliquefaction process by blending of feedstocks or solvents over time. ,

  6. Reducing stress in sheep by feeding the seaweed Ascophyllum nodosum 

    E-Print Network [OSTI]

    Archer, Gregory Scott

    2005-11-01

    in poultry during heat stress (Belay et al., 1992). Increased feed intake and growth has been seen in prawns fed diets containing beatine (Felix and Sudharsan, 2004). Ducks fed diets containing betaine also exhibited increased growth and improved carcass...

  7. THERMAL ANALYSIS OF WASTE GLASS MELTER FEEDS Pavel Hrma,

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

    THERMAL ANALYSIS OF WASTE GLASS MELTER FEEDS Pavel Hrma, 1,2 David A. Pierce, 2 Richard Pokorn 3 1 Division of Advanced Nuclear Engineering, Pohang University of Science and...

  8. THERMAL ANALYSIS OF WASTE GLASS MELTER FEED Pavel Hrma,

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

    THERMAL ANALYSIS OF WASTE GLASS MELTER FEED Pavel Hrma, (a,b) David A. Pierce, (b) Richard Pokorn (b,c) (a) Division of Advanced Nuclear Engineering, Pohang University of Science...

  9. NNSA Production Office more than doubles Feds Feed Families campaign...

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

    Posted: October 14, 2015 - 11:16am NPO employees are shown making a bulk purchase of food from employee donations to the Feds Feed Families campaign. This food went to the...

  10. NNSA Production Office tops Feds Feed Families campaign goal...

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

    Nuclear Security Administration Production Office have donated 17,348 pounds of food as part of the annual U.S. Department of Energy's "Feds Feed Families" campaign. The...

  11. PSEG Long Island- Solar Initiative Feed-in Tariff

    Broader source: Energy.gov [DOE]

    The PSEG Long Island Feed-in Tariff II (FIT II) program provides fixed payments for electricity produced by approved photovoltaic systems over a fixed period of time. The program operates under a...

  12. THE FEEDING HABITS OF THE GREEN CRAB, CARC/NUS MAENAS (L.) BY JOHN W. ROPES, Fishery Biologist

    E-Print Network [OSTI]

    digging and feeding. Accessory organs other than eyes aid in directing it to food. Feeding is influenced and presumably feeding as well. Low salinities, however, apparently did not affect feeding. Because female crabs

  13. Generic solution of the heterogeneity-induced competing risk problem in survival analysis

    E-Print Network [OSTI]

    Coolen, ACC "Ton"

    Generic solution of the heterogeneity-induced competing risk problem in survival analysis J van competing risks to be induced by residual cohort heterogeneity, i.e. heterogeneity that is not captured risks that unifies the main schools of thought. Assuming heterogeneity-induced competing risks is much

  14. The MyView Project: from Heterogeneous Bibliographic Information Repositories to Personalized Digital Libraries

    E-Print Network [OSTI]

    Clausen, Michael

    at the integration of both structured and unstructured bibli­ ographic information from a diversity of heterogeneous

  15. Commercial Feeding Stuffs, September 1, 1931 to August 31, 1932. 

    E-Print Network [OSTI]

    Fuller, F. D. (Frederick Driggs); Sullivan, James

    1932-01-01

    table and the digestible protein and the productive energy of the feeds are given. A table is given showing the average protein content of the cottonseed products made by each oil mill so that the reader can see which mills maintain the guaranties... -_----------___------------------.---------------------------------------.--------.c------ 21 Miscellaneous Products 22 Tentative Definitions ___-_.._----_-.----------------------------.-------------...-.-. 23 Fish Oils 223 Marine Products 23 Milk Products 24 Miscellaneous Products 24 Mineral Feeds...

  16. Annual Report of the Feed Control Service, 1952-53. 

    E-Print Network [OSTI]

    Holleman, M. P.; Brock, F. D.

    1953-01-01

    protein. fat. 1 percent percent 1 Minimum Maximum nitroaen- e I free percent edrart, SPECIAL-PURPOSE FORMULA FEEDS. Grain sorghum gluten meal ................. Grain sorghum meal ....................... Grain sorghum head stems... protein, minimum percentage of crude fat, mimimum percentage of nitrogen-free extract, maxi- mum percentage of crude fiber, names of ingredients of a mixed feed, percentage of each ingredient when adulterants are present, and the percentage of each...

  17. Morphometry and feeding habits of two ommastrephid squid 

    E-Print Network [OSTI]

    Wolff, Gary Arthur

    1977-01-01

    MORPHOMETRY AND FEEDING HABITS OF TWO OFKASTREPHID SQUID A Thesis by GARY ARTHUR WOLFF Submitted to the Graduate College of Texas ARM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE August 1977... Major Subject: Oceanography NORPHO~ifETRY AND FEEDING HABITS OF TWO OM'IASTREPHID SQUID A Thesis by GARY ARTHUR WOEFF Approved as to style and content by: rkfk ( (Chairman of Committee) (Head of Departme ' '(rremb er ) (Nember August 1977...

  18. The influence of feed/cattle price relationships on the optimum cattle feeding systems and on the optimum location of feeding in Texas 

    E-Print Network [OSTI]

    Williams, Eddy Joe

    1971-01-01

    on feed, a wide variety of systems with different rates of gain and conversion ratios were selected, The ob]ectives of the study were to determine (1) the competitive advantage of feeding cattle in each area, (2) the optimum location of each cattle...- ations of this model were used to (1) measure the effect of consider- ing only variable costs in selecting among alternative systems and areas; and (2) measure the effect of a change in the operating capital restriction. Selected combinations of milo...

  19. Evaluation of defatted and whole algae as feed ingredients for the marine shrimp, litopenaeus vannamei

    SciTech Connect (OSTI)

    Morgan, J. L.; Patnaik, S.; Gatlin, III, D. M.; Lawrence, A. L.

    2012-06-13

    Evaluation of defatted and whole algae as feed ingredients for the marine shrimp, litopenaeus vannamei

  20. Persistent local order heterogeneity in the supercritical carbon dioxide

    E-Print Network [OSTI]

    Dima Bolmatov; D. Zav'yalov; M. Gao; M. Zhernenkov

    2014-06-06

    The supercritical state is currently viewed as uniform and homogeneous on the pressure-temperature phase diagram in terms of physical properties. Here, we study structural properties of the supercritical carbon dioxide, and discover the existence of persistent medium-range order correlations which make supercritical carbon dioxide non-uniform and heterogeneous on an intermediate length scale, a result not hitherto anticipated. We report on the carbon dioxide heterogeneity shell structure where, in the first shell, both carbon and oxygen atoms experience gas-like type inter- actions with short range order correlations, while within the second shell oxygen atoms essentially exhibit liquid-like type of interactions with medium range order correlations due to localisation of transverse-like phonon packets. We show that the local order heterogeneity remains in the three phase-like equilibrium within very wide temperature range. Importantly, we highlight a catalytic role of atoms inside the nearest neighbor heterogeneity shell in providing a mechanism for diffusion in the supercritical carbon dioxide on an intermediate length scale. Finally, we discuss important implications for answering the intriguing question whether Venus may have had carbon dioxide oceans and urge for an experimental detection of this persistent local order heterogeneity.

  1. Tank Farms and Waste Feed Delivery - 12507

    SciTech Connect (OSTI)

    Fletcher, Thomas; Charboneau, Stacy; Olds, Erik [US DOE (United States)

    2012-07-01

    The mission of the Department of Energy's Office of River Protection (ORP) is to safely retrieve and treat the 56 million gallons of Hanford's tank waste and close the Tank Farms to protect the Columbia River. Our discussion of the Tank Farms and Waste Feed Delivery will cover progress made to date with Base and Recovery Act funding in reducing the risk posed by tank waste and in preparing for the initiation of waste treatment at Hanford. The millions of gallons of waste are a by-product of decades of plutonium production. After irradiated fuel rods were taken from the nuclear reactors to the processing facilities at Hanford they were exposed to a series of chemicals designed to dissolve away the rod, which enabled workers to retrieve the plutonium. Once those chemicals were exposed to the fuel rods they became radioactive and extremely hot. They also couldn't be used in this process more than once. Because the chemicals are caustic and extremely hazardous to humans and the environment, underground storage tanks were built to hold these chemicals until a more permanent solution could be found. The underground storage tanks range in capacity from 55,000 gallons to more than 1 million gallons. The tanks were constructed with carbon steel and reinforced concrete. There are eighteen groups of tanks, called 'tank farms', some having as few as two tanks and others up to sixteen tanks. Between 1943 and 1964, 149 single-shell tanks were built at Hanford in the 200 West and East Areas. Heat generated by the waste and the composition of the waste caused an estimated 67 of these single-shell tanks to leak into the ground. Washington River Protection Solutions is the prime contractor responsible for the safe management of this waste. WRPS' mission is to reduce the risk to the environment that is posed by the waste. All of the pumpable liquids have been removed from the single-shell tanks and transferred to the double-shell tanks. What remains in the single-shell tanks are solid and semi-solid wastes. Known as salt-cakes, they have the consistency of wet beach sand. Some of the waste resembles small broken ice, or whitish crystals. Because the original pumps inside the tanks were designed to remove only liquid waste, other methods have been developed to reach the remaining waste. Access to the tank waste is through long, typically skinny pipes, called risers, extending out of the tanks. It is through these pipes that crews are forced to send machines and devices into the tanks that are used to break up the waste or push it toward a pump. These pipes range in size from just a few inches to just over a foot in diameter because they were never intended to be used in this manner. As part of the agreement regulating Hanford cleanup, crews must remove at least 99% of the material in every tank on the site, or at least as much waste that can be removed based on available technology. To date, seven single-shell tanks have been emptied, and work is underway in another 10 tanks in preparation for additional retrieval activities. Two barriers have been installed over single-shell tanks to prevent the intrusion of surface water down to the tanks, with additional barriers planned for the future. Single and double-shell tank integrity analyses are ongoing. Because the volume of the waste generated through plutonium production exceeded the capacity of the single-shell tanks, between 1968 and 1986 Hanford engineers built 28 double-shell tanks. These tanks were studied and made with a second shell to surround the carbon steel and reinforced concrete. The double-shell tanks have not leaked any of their waste. (authors)

  2. Persistent local order heterogeneity in the supercritical carbon dioxide

    E-Print Network [OSTI]

    Bolmatov, Dima; Gao, M; Zhernenkov, M

    2014-01-01

    The supercritical state is currently viewed as uniform and homogeneous on the pressure-temperature phase diagram in terms of physical properties. Here, we study structural properties of the supercritical carbon dioxide, and discover the existence of persistent medium-range order correlations which make supercritical carbon dioxide non-uniform and heterogeneous on an intermediate length scale, a result not hitherto anticipated. We report on the carbon dioxide heterogeneity shell structure where, in the first shell, both carbon and oxygen atoms experience gas-like type inter- actions with short range order correlations, while within the second shell oxygen atoms essentially exhibit liquid-like type of interactions with medium range order correlations due to localisation of transverse-like phonon packets. We show that the local order heterogeneity remains in the three phase-like equilibrium within very wide temperature range. Importantly, we highlight a catalytic role of atoms inside the nearest neighbor heterog...

  3. State-of-the-art in Heterogeneous Computing

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

    Brodtkorb, Andre R.; Dyken, Christopher; Hagen, Trond R.; Hjelmervik, Jon M.; Storaasli, Olaf O.

    2010-01-01

    Node level heterogeneous architectures have become attractive during the last decade for several reasons: compared to traditional symmetric CPUs, they offer high peak performance and are energy and/or cost efficient. With the increase of fine-grained parallelism in high-performance computing, as well as the introduction of parallelism in workstations, there is an acute need for a good overview and understanding of these architectures. We give an overview of the state-of-the-art in heterogeneous computing, focusing on three commonly found architectures: the Cell Broadband Engine Architecture, graphics processing units (GPUs), and field programmable gate arrays (FPGAs). We present a review of hardware, availablemore »software tools, and an overview of state-of-the-art techniques and algorithms. Furthermore, we present a qualitative and quantitative comparison of the architectures, and give our view on the future of heterogeneous computing.« less

  4. Sequence Heterogeneity Accelerates Protein Search for Targets on DNA

    E-Print Network [OSTI]

    Alexey A. Shvets; Anatoly B. Kolomeisky

    2015-07-21

    The process of protein search for specific binding sites on DNA is fundamentally important since it marks the beginning of all major biological processes. We present a theoretical investigation that probes the role of DNA sequence symmetry, heterogeneity and chemical composition in the protein search dynamics. Using a discrete-state stochastic approach with a first-passage events analysis, which takes into account the most relevant physical-chemical processes, a full analytical description of the search dynamics is obtained. It is found that, contrary to existing views, the protein search is generally faster on DNA with more heterogeneous sequences. In addition, the search dynamics might be affected by the chemical composition near the target site. The physical origins of these phenomena are discussed. Our results suggest that biological processes might be effectively regulated by modifying chemical composition, symmetry and heterogeneity of a genome.

  5. Low-head feeding system for thin section castings

    DOE Patents [OSTI]

    Daniel, Sabah S. (Allegheny County, PA); Kleeb, Thomas R. (Allegheny County, PA); Lewis, Thomas W. (Allegheny County, PA); McDermott, John F. (Allegheny County, PA); Ozgu, Mustafa R. (Northhampton County, PA); Padfield, Ralph C. (Lehigh County, PA); Rego, Donovan N. (Lehigh County, PA); Vassilicos, Achilles (Allegheny County, PA)

    1990-01-01

    A feed system is provided for conveying molten metal to a thin section caster having mold surfaces moving exclusively in the direction of casting. The feed system has a passage of circular cross section adjacent to one end thereof for receiving molten metal and a rectangular cross section at the delivery end thereof adjacent to the caster. The feed system is designed for supplying molten metal to the caster at low pressure for "closed-pool" type caster operation. The point of highest elevation in the metal flow passage of the feed system is on the upper surface of a transition portion where the cross section changes from circular to rectangular adjacent to the nozzle. The level or height of the high point above the centerline of the nozzle exit is selected so as to be less than the pressure of the metal measured in inches at the nozzle exit. This feature enables the maintenance of positive pressure in the metal within the feed system so that ingress of air into the metal is prevented.

  6. Feed gas contaminant control in ion transport membrane systems

    DOE Patents [OSTI]

    Carolan, Michael Francis (Allentown, PA); Minford, Eric (Laurys Station, PA); Waldron, William Emil (Whitehall, PA)

    2009-07-07

    Ion transport membrane oxidation system comprising an enclosure having an interior and an interior surface, inlet piping having an internal surface and adapted to introduce a heated feed gas into the interior of the enclosure, and outlet piping adapted to withdraw a product gas from the interior of the enclosure; one or more planar ion transport membrane modules disposed in the interior of the enclosure, each membrane module comprising mixed metal oxide material; and a preheater adapted to heat a feed gas to provide the heated feed gas to the inlet piping, wherein the preheater comprises an interior surface. Any of the interior surfaces of the enclosure, the inlet piping, and the preheater may be lined with a copper-containing metal lining. Alternatively, any of the interior surfaces of the inlet piping and the preheater may be lined with a copper-containing metal lining and the enclosure may comprise copper.

  7. EFFECT OF MELTER-FEED-MAKEUP ON VITRIFICATION PROCESS

    SciTech Connect (OSTI)

    KRUGER AA; HRMA PR; SCHWEIGER MJ; HUMRICKHOUSE CJ; MOODY JA; TATE RM; TEGROTENHUIS NE; ARRIGONI BM; RODRIGUEZ CP

    2009-09-10

    Increasing the rate of glass processing in the Hanford Tank Waste Treatment and Immobilization Plant (WTP) will allow shortening the life cycle of waste cleanup at the Hanford Site. While the WTP melters have approached the limit of increasing the rate of melting by enhancing the heat transfer rate from molten glass to the cold cap, a substantial improvement can still be achieved by accelerating the feed-to-glass conversion kinetics. This study investigates how the feed-to-glass conversion process responds to the feed makeup. By identifying the means of control of primary foam formation and silica grain dissolution, it provides data needed for a meaningful and economical design of large-scale experiments aimed at achieving faster melting.

  8. Statistical Methods and Tools for Hanford Staged Feed Tank Sampling

    SciTech Connect (OSTI)

    Fountain, Matthew S.; Brigantic, Robert T.; Peterson, Reid A.

    2013-10-01

    This report summarizes work conducted by Pacific Northwest National Laboratory to technically evaluate the current approach to staged feed sampling of high-level waste (HLW) sludge to meet waste acceptance criteria (WAC) for transfer from tank farms to the Hanford Waste Treatment and Immobilization Plant (WTP). The current sampling and analysis approach is detailed in the document titled Initial Data Quality Objectives for WTP Feed Acceptance Criteria, 24590-WTP-RPT-MGT-11-014, Revision 0 (Arakali et al. 2011). The goal of this current work is to evaluate and provide recommendations to support a defensible, technical and statistical basis for the staged feed sampling approach that meets WAC data quality objectives (DQOs).

  9. Earth melter and method of disposing of feed materials

    DOE Patents [OSTI]

    Chapman, C.C.

    1994-10-11

    An apparatus, and method of operating the apparatus is described, wherein a feed material is converted into a glassified condition for subsequent use or disposal. The apparatus is particularly useful for disposal of hazardous or noxious waste materials which are otherwise either difficult or expensive to dispose of. The apparatus is preferably constructed by excavating a melt zone in a quantity of soil or rock, and lining the melt zone with a back fill material if refractory properties are needed. The feed material is fed into the melt zone and, preferably, combusted to an ash, whereupon the heat of combustion is used to melt the ash to a molten condition. Electrodes may be used to maintain the molten feed material in a molten condition, and to maintain homogeneity of the molten materials. 3 figs.

  10. Earth melter and method of disposing of feed materials

    DOE Patents [OSTI]

    Chapman, Christopher C. (Richland, WA)

    1994-01-01

    An apparatus, and method of operating the apparatus, wherein a feed material is converted into a glassified condition for subsequent use or disposal. The apparatus is particularly useful for disposal of hazardous or noxious waste materials which are otherwise either difficult or expensive to dispose of. The apparatus is preferably constructed by excavating a melt zone in a quantity of soil or rock, and lining the melt zone with a back fill material if refractory properties are needed. The feed material is fed into the melt zone and, preferably, combusted to an ash, whereupon the heat of combustion is used to melt the ash to a molten condition. Electrodes may be used to maintain the molten feed material in a molten condition, and to maintain homogeneity of the molten materials.

  11. The Texas Cattle Feeding Industry - Operations, Management, and Costs. 

    E-Print Network [OSTI]

    Dietrich, R.A.; Thomas, P.J.; Farris, D.E.

    1985-01-01

    PLACED ON FEED BY SIZE OF FEEDLOT, TEXAS, 1980-81 Less than 2,000 to 2,000 3,999 head head Breed capacity capacity English Breeds and English crosses 78.4 37.3 Brahman and Brahman crosses 19.7 62.7 Holstein and Dairy crosses .2 NR Exotic European... primarily of large scale, highly efficient feeding operations located predominantly in the Panhandle-Plains area where more than 85% of Texas cattle are fed annually. Feedlots with 16,0.0.0. head or more capacity, which accounted for almost 80...

  12. Composition and Productive Energy of Poultry Feeds and Rations. 

    E-Print Network [OSTI]

    Fraps, G. S. (George Stronach)

    1946-01-01

    C. H. BIcDOWELL, Acting Director College Station. Texas RITI,I,ETIN NO. 878 FEBRUARY, 1916 ' * 2 ,-: !'. ,-;Y A. & 1% CviLiuc OF TEXAS COMPOSITION ,4ND PRODUCTIVE ENERGY OF POULTRY FEEDS AND RATIONS Ci. S. FRAPS Division of Chemislry 1... AGRICULTURAL AND MECHANICAL COLLEGE OF TEXAS GIBB GILCHRIST, President [Blank Page in Original Bulletin] The productive energy values of a number of poultry feeds hare heen measured by means of the gains of protein and fat in grow- ing chickens...

  13. Liquid over-feeding air conditioning system and method

    DOE Patents [OSTI]

    Mei, V.C.; Chen, F.C.

    1993-09-21

    A refrigeration air conditioning system utilizing a liquid over-feeding operation is described. A liquid refrigerant accumulator-heat exchanger is placed in the system to provide a heat exchange relationship between hot liquid refrigerant discharged from condenser and a relatively cool mixture of liquid and vaporous refrigerant discharged from the evaporator. This heat exchange relationship substantially sub-cools the hot liquid refrigerant which undergoes little or no evaporation across the expansion device and provides a liquid over-feeding operation through the evaporator for effectively using 100 percent of evaporator for cooling purposes and for providing the aforementioned mixture of liquid and vaporous refrigerant. 1 figure.

  14. Liquid over-feeding air conditioning system and method

    DOE Patents [OSTI]

    Mei, Viung C. (Oak Ridge, TN); Chen, Fang C. (Knoxville, TN)

    1993-01-01

    A refrigeration air conditioning system utilizing a liquid over-feeding operation is described. A liquid refrigerant accumulator-heat exchanger is placed in the system to provide a heat exchange relationship between hot liquid refrigerant discharged from condenser and a relatively cool mixture of liquid and vaporous refrigerant discharged from the evaporator. This heat exchange relationship substantially sub-cools the hot liquid refrigerant which undergoes little or no evaporation across the expansion device and provides a liquid over-feeding operation through the evaporator for effectively using 100 percent of evaporator for cooling purposes and for providing the aforementioned mixture of liquid and vaporous refrigerant.

  15. Coal-feeding mechanism for a fluidized bed combustion chamber

    DOE Patents [OSTI]

    Gall, Robert L. (Morgantown, WV)

    1981-01-01

    The present invention is directed to a fuel-feeding mechanism for a fluidized bed combustor. In accordance with the present invention a perforated conveyor belt is utilized in place of the fixed grid normally disposed at the lower end of the fluidized bed combustion zone. The conveyor belt is fed with fuel, e.g. coal, at one end thereof so that the air passing through the perforations dislodges the coal from the belt and feeds the coal into the fluidized zone in a substantially uniform manner.

  16. Annual Report of the Feed Control Service, 1954-55. 

    E-Print Network [OSTI]

    Anonymous

    1955-01-01

    . It is not impossible to obtain results by a process of elimination, but such a process is time-consuming and expensive. T In most cases it is a waste of time and effort: to start an investigation with the analysis of feed, or to depend entirely upon such analysis... of at least 70 percent. (Adopted May 4, 1955.) Following are the results of analyses of eight samples of hydrolized feathers investigated dur- ing the fiscal year. METHOD OF CALCULATING GUARANTIED ANALYSIS OF A FORMULA FEED A satisfactory method...

  17. Gasifier feed: Tailor-made from Illinois coals

    SciTech Connect (OSTI)

    Ehrlinger, H.P. III.

    1991-01-01

    The purpose of this research is to develop a coal slurry from waste streams using Illinois coal that is ideally suited for a gasification feed. The principle items to be studied are (1) methods of concentrating pyrite and decreasing other ash forming minerals into a high grade gasification feed using froth flotation and gravity separation techniques; (2) chemical and particle size analyses of coal slurries; (3) determination of how that slurry can be densified and to what degree of densification is optimum from the pumpability and combustibility analyses; and (4) reactivity studies.

  18. PerCon: A Personal Digital Library for Heterogeneous Data

    E-Print Network [OSTI]

    Shipman, Frank

    PerCon: A Personal Digital Library for Heterogeneous Data Su Inn Park, Frank Shipman Center for the Study of Digital Libraries Department of Computer Science and Engineering Texas A&M University 1 a personal digital library of data. Users may then search, browse, visualize and annotate the data

  19. Probabilistic Detection of Mobile Targets in Heterogeneous Sensor Networks

    E-Print Network [OSTI]

    Poovendran, Radha

    , a surveillance system can be realized via fusion of data aggregated from various sensor modalities: infrared, CCD of detection can be quantified by evaluating the probability of detection by at least k sensors, where kProbabilistic Detection of Mobile Targets in Heterogeneous Sensor Networks Loukas Lazos Network

  20. Design of heterogeneous turbine blade Xiaoping Qian, Deba Dutta*

    E-Print Network [OSTI]

    Qian, Xiaoping

    Design of heterogeneous turbine blade Xiaoping Qian, Deba Dutta* Department of Mechanical material. A critical task of such synthesis in turbine blade design is an effective design method approach for turbine blade design, which ties B-spline representation of a turbine blade to a physics

  1. Lighting the Dark Silicon by Exploiting Heterogeneity on Future Processors

    E-Print Network [OSTI]

    Koppelman, David M.

    ][17], leading to an ever increasing power density on modern processors. On the other hand, the max- imumLighting the Dark Silicon by Exploiting Heterogeneity on Future Processors Ying Zhang Lu Peng Xin processor power consumption should be always enclosed within a reasonable envelope despite the manufacturing

  2. Scale-dependent seismic velocity in heterogeneous media

    SciTech Connect (OSTI)

    Mukerji, T.; Mavko, G.; Mujica, D. [Stanford Univ., CA (United States)] [Stanford Univ., CA (United States); Lucet, N. [IFP, Rueil-Malmaison (France)] [IFP, Rueil-Malmaison (France)

    1995-07-01

    The measurable traveltime of seismic events propagating in heterogeneous media depend on the geologic scale, the seismic wavelength, and the propagation distance. In general, the velocity inferred from arrival times is slower when the wavelength is longer than the scale of heterogeneity and faster when the wavelength is shorter. For normal incidence propagation in stratified media, this is the difference between averaging elastic compliance sin the long wavelength limit. In two and three dimensions there is also the path effect. Shorter wavelengths tend to find faster paths, thus biasing the traveltimes to lower values. In the shorter wavelength limit, the slowness inferred from the average traveltime is smaller than the mean slowness of the medium. When the propagation distance is much larger than the scale of the heterogeneity, the path effect causes the velocity increase from long to short wavelengths to be much larger in two dimensions than in one dimension, and even larger in three dimensions. The amount of velocity dispersion can be understood theoretically, but there is some discrepancy between theory and experiment as to what ratio of wavelength to heterogeneity scale separates the long and short wavelength limits. The scale-dependent traveltime implies that a measured velocity depends not just on rock properties, but also on the scale of the measurement relative to he scale of the geology.

  3. HETEROGENEOUS PROCESS MIGRATION SCALABLE NETWORK OF WORKSTATIONS (SNOW)

    E-Print Network [OSTI]

    Sun, Xian-He

    HETEROGENEOUS PROCESS MIGRATION for SCALABLE NETWORK OF WORKSTATIONS (SNOW) Xian-He Sun Department of Computer Science Louisiana State University sun@bit.csc.lsu.edu URL: http://www.csc.lsu.edu/ scs/SNOW/ Nov and restoration mechanism The SNOW/MpPVM Software Environment Components and Implementation Issues Experimental

  4. Colorado Plateau magmatism and uplift by warming of heterogeneous lithosphere

    E-Print Network [OSTI]

    Pederson, Joel L.

    LETTERS Colorado Plateau magmatism and uplift by warming of heterogeneous lithosphere Mousumi Roy1 , Thomas H. Jordan2 & Joel Pederson3 The forces that drove rock uplift of the low-relief, high experienced 2 km of rock uplift7 without significant internal deformation2­4 . Here we propose that warming

  5. Alamo: An Architecture for Integrating Heterogeneous Data Sources \\Lambda

    E-Print Network [OSTI]

    Samoladas, Vasilis

    Alamo: An Architecture for Integrating Heterogeneous Data Sources \\Lambda Daniel P. Miranker an architecture, Alamo, that addresses both the semantic and physi­ cal aspects of data integration. The Alamo ar source, the Alamo architecture forms an infrastructure for the development and possi­ ble integration

  6. Fog Water and Ecosystem Function: Heterogeneity in a California

    E-Print Network [OSTI]

    Templer, Pamela

    Fog Water and Ecosystem Function: Heterogeneity in a California Redwood Forest Holly A. Ewing,1 Biology, University of Connecticut, 75 N. Eagleville Road, Storrs, Connecticut 06269, USA ABSTRACT Fog and nitrogen (N) fluxes from hori- zontally moving fog and vertically delivered rain as well as redwood tree

  7. Utility Functions and Resource Management in an Oversubscribed Heterogeneous

    E-Print Network [OSTI]

    Maciejewski, Anthony A. "Tony"

    IEEEProof Utility Functions and Resource Management in an Oversubscribed Heterogeneous Computing on those being investigated by the Extreme Scale Systems Center at Oak Ridge National Laboratory. Utility a metric for the performance of resource allocation heuristics. Each task has a time-varying utility

  8. TURBULENT SHEAR STRESS IN HETEROGENEOUS SEDIMENT-LADEN FLOWS

    E-Print Network [OSTI]

    Julien, Pierre Y.

    TURBULENT SHEAR STRESS IN HETEROGENEOUS SEDIMENT-LADEN FLOWS By Hyoseop Woo,1 Associate Member are the beginning of motion of sediment particles and sediment transport in alluvial channels. If shear stress can be well defined in clear-water flows, compar- atively little is known about shear stresses in sediment

  9. Optimal Power Control in Rayleigh-fading Heterogeneous Networks

    E-Print Network [OSTI]

    Tan, Chee Wei

    specifi- cation in a heterogeneous network to minimize the total energy consumption and simultaneously fading. As a by-product, we solve an open problem of convergence for a previously proposed algorithm threshold that is often com- puted from the quality of service requirement. The statistics of the SINR

  10. Continuation Methods for Mixing Heterogeneous Sources Adrian Corduneanu

    E-Print Network [OSTI]

    Jaakkola, Tommi S.

    tasks involve esti­ mation from heterogeneous information sources. This includes classification a preferred information source with another in this setting by evolving continuous paths of fixed points important learning problems involve a compromise between competing sources of information. For example

  11. Energy Consumption Characteriation of Heterogeneous Servers School of Computer Science

    E-Print Network [OSTI]

    Qin, Xiao

    Energy Consumption Characteriation of Heterogeneous Servers Xiao Zhang School of Computer Science Machine between servers to save energy. An accurate energy consumption model is the basic of energy management. Most past studies show that energy consumption has linear relation with resource utilization. We

  12. Modeling mesoscopic attenuation in a highly heterogeneous Biot's medium

    E-Print Network [OSTI]

    Santos, Juan

    and dispersion at seismic frequencies is known as mesoscopic loss, and is caused by the presence-wave diffusion process. It is also the case that the exact spatial distribution of these heterogeneities the effect of underground carbon dioxide (CO2) accumulations on the amplitude and attenuation of seismic

  13. Data Collection and Restoration for Heterogeneous Process Migration *

    E-Print Network [OSTI]

    Sun, Xian-He

    Data Collection and Restoration for Heterogeneous Process Migration * Kasidit Chanchio Xian-He Sun,sung@cs.iit.edu Abstract This study presents a practical solution for data collec- tion and restoration to migrate- grams. Experimental and analytical results show that (1) a user-level process can be migrated across

  14. Practical Experience in the Numerical Dangers of Heterogeneous Computing

    E-Print Network [OSTI]

    Dongarra, Jack

    in writing reliable numerical library software for heterogeneous computing environments. Although a lot ways to avoid potential pitfalls, or if that is not possible, we recommend that the software;1. INTRODUCTION There are special challenges associated with writing reliable numerical software on networks

  15. Hybrid Heterogeneous Energy Supply Networks Farinaz Koushanfar and Azalia Mirhoseini

    E-Print Network [OSTI]

    Hybrid Heterogeneous Energy Supply Networks Farinaz Koushanfar and Azalia Mirhoseini Department--Efficient energy supply, storage, and distribution are key technical challenges for design and operation of electronic systems. In particular, energy supply is the most scarce resource and constraint for mobile

  16. Graph-based Navigation Strategies for Heterogeneous Spatial Data Sets

    E-Print Network [OSTI]

    Rodríguez-Tastets, Maria Andrea

    Graph-based Navigation Strategies for Heterogeneous Spatial Data Sets Andrea Rodr´iguez1 the information contribution of data sets based on correspondence relations outperform a strategy that considers- base representation, this work describes strategies that optimize the navigation of data sets

  17. An analysis and hypothesis generation platform for heterogeneous cancer

    E-Print Network [OSTI]

    Reed, Chris

    An analysis and hypothesis generation platform for heterogeneous cancer databases. Philip Roy QUINLAN a,1, Alastair THOMPSON a and Chris REED b a Dundee Cancer Centre, University of Dundee, Ninewells Hospital, Dundee b School of Computing, University of Dundee, Dundee Abstract. The field of cancer research

  18. Automatic Intra-Application Load Balancing for Heterogeneous Systems

    E-Print Network [OSTI]

    Huang, Wei

    Automatic Intra-Application Load Balancing for Heterogeneous Systems Michael Boyer, Shuai Che AMD #12;2 | Automatic Intra-Application Load Balancing | June 14, 2011 Motivation Many applications;3 | Automatic Intra-Application Load Balancing | June 14, 2011 Leveraging Multiple Devices Writing correct

  19. Establishment Heterogeneity, Exporter Dynamics, and the Effects of Trade Liberalization

    E-Print Network [OSTI]

    Alexandrova, Ivana

    to free trade equivalent to 1.03 percent of steady state consumption. Con- sidering the transitionEstablishment Heterogeneity, Exporter Dynamics, and the Effects of Trade Liberalization George the effect of reducing tariffs on welfare, trade, and export participation. We find sizeable gains to moving

  20. Distributed, Secure Load Balancing with Skew, Heterogeneity, and Churn

    E-Print Network [OSTI]

    Distributed, Secure Load Balancing with Skew, Heterogeneity, and Churn Jonathan Ledlie and Margo rates of node join and leave (churn), and wide variation in node network and storage capacity be heavy-tailed, and because node availability and churn rates may change over time. Learning to adapt

  1. A Heterogeneous Animated Platform for Educational Participatory Simulations

    E-Print Network [OSTI]

    Tomlinson, Bill

    by populations of 3D animated virtual creatures. When a human participant brings one of the mobile devices (a as an educational tool. Keywords: Human-Computer Interaction, Handheld/Mobile Devices, Virtual/3D EnvironmentsA Heterogeneous Animated Platform for Educational Participatory Simulations Bill Tomlinson ACE

  2. An Argument for Archiving Facebook as a Heterogeneous Personal Store

    E-Print Network [OSTI]

    Marshall, Cathy

    An Argument for Archiving Facebook as a Heterogeneous Personal Store Catherine C. Marshall not archive the contents of a major social media service like Facebook to ensure the permanence to archive social media: Facebook is not only viewed as private and vulnerable to violations of content

  3. a Modular, Multi-Engine Simulator for Heterogeneous Swarm Robotics

    E-Print Network [OSTI]

    Libre de Bruxelles, Université

    ARGoS: a Modular, Multi-Engine Simulator for Heterogeneous Swarm Robotics Carlo Pinciroli, Vito, Gianni Di Caro, Frederick Ducatelle, Timothy Stirling§, ´Alvaro Guti´errez, Luca Maria Gambardella. A unique feature of ARGoS is the possibility to use multiple physics engines of different types

  4. Energy Conservation in Heterogeneous Server Clusters Taliver Heath

    E-Print Network [OSTI]

    Bianchini, Ricardo

    Energy Conservation in Heterogeneous Server Clusters Taliver Heath ¡ , Bruno Diniz ¢ , Enrique V of Quito Piscataway, NJ 08854-8019 Belo Horizonte, Brazil Quito, Ecuador¤ taliver,ricardob¥ @cs nodes show that our server can consume 42% less energy than an energy-oblivious server, with only

  5. Numerical assessment of 3-D macrodispersion in heterogeneous porous media

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . [1] Hydrodynamic dispersion is a key controlling factor of solute transport in heterogeneous porous.20206. 1. Introduction [2] Hydrodynamic dispersion is a major component of solute transport; Freeze, 1975; Gelhar and Axness, 1983]. The logarithm of permeability Y xð Þ ¼ ln K xð Þð Þ follows

  6. ADAPTIVE ONLINE ENERGY SAVING FOR HETEROGENEOUS SENSOR Meikang Qiu1

    E-Print Network [OSTI]

    Sha, Edwin

    ADAPTIVE ONLINE ENERGY SAVING FOR HETEROGENEOUS SENSOR NETWORKS Meikang Qiu1 Jingtong Hu2 Edwin H-to-predict environments and have limited lifetime. We use a novel adaptive online energy saving (AOES) algorithm to save as a probabilistic random variable to save energy by se- lecting the best mode assignment for each node, which

  7. Monitoring Marine Environments using a Team of Heterogeneous Robots

    E-Print Network [OSTI]

    Dudek, Gregory

    1 Monitoring Marine Environments using a Team of Heterogeneous Robots Yogesh Girdhar1, Anqi Xu1, Gregory Dudek1 Abstract--We present a novel approach for monitoring marine environments by a team supervisor to plan for further exploration. I. INTRODUCTION Monitoring marine environments is a challenging

  8. Examining Energy Use in Heterogeneous Archival Storage Systems

    E-Print Network [OSTI]

    Polyzotis, Neoklis (Alkis)

    Examining Energy Use in Heterogeneous Archival Storage Systems Ian F. Adams*, Ethan L. Miller to consume upwards of 35% the total energy used [2]. As systems grow to encompass thousands of storage to power and cool storage devices, and energy costs are no longer the only issues--data center architects

  9. LOW ACTIVITY WASTE FEED SOLIDS CARACTERIZATION AND FILTERABILITY TESTS

    SciTech Connect (OSTI)

    McCabe, D.; Crawford, C.; Duignan, M.; Williams, M.; Burket, P.

    2014-04-03

    The primary treatment of the tank waste at the DOE Hanford site will be done in the Waste Treatment and Immobilization Plant (WTP) that is currently under construction. The baseline plan for the WTP Pretreatment facility is to treat the waste, splitting it into High Level Waste (HLW) feed and Low Activity Waste (LAW) feed. Both waste streams are then separately vitrified as glass and sealed in canisters. The LAW glass will be disposed onsite in the Integrated Disposal Facility (IDF). There are currently no plans to treat the waste to remove technetium in the WTP Pretreatment facility, so its disposition path is the LAW glass. Options are being explored to immobilize the LAW portion of the tank waste, i.e., the LAW feed from the WTP Pretreatment facility. Removal of {sup 99}Tc from the LAW Feed, followed by off-site disposal of the {sup 99}Tc, would eliminate a key risk contributor for the IDF Performance Assessment (PA) for supplemental waste forms, and has potential to reduce treatment and disposal costs. Washington River Protection Solutions (WRPS) is developing some conceptual flow sheets for LAW treatment and disposal that could benefit from technetium removal. One of these flowsheets will specifically examine removing {sup 99}Tc from the LAW feed stream to supplemental immobilization. The conceptual flow sheet of the {sup 99}Tc removal process includes a filter to remove insoluble solids prior to processing the stream in an ion exchange column, but the characteristics and behavior of the liquid and solid phases has not previously been investigated. This report contains results of testing of a simulant that represents the projected composition of the feed to the Supplemental LAW process. This feed composition is not identical to the aqueous tank waste fed to the Waste Treatment Plant because it has been processed through WTP Pretreatment facility and therefore contains internal changes and recycle streams that will be generated within the WTP process. Although a Supplemental LAW feed simulant has previously been prepared, this feed composition differs from that simulant because those tests examined only the fully soluble aqueous solution at room temperature, not the composition formed after evaporation, including the insoluble solids that precipitate after it cools. The conceptual flow sheet for Supplemental LAW immobilization has an option for removal of {sup 99}Tc from the feed stream, if needed. Elutable ion exchange has been selected for that process. If implemented, the stream would need filtration to remove the insoluble solids prior to processing in an ion exchange column. The characteristics, chemical speciation, physical properties, and filterability of the solids are important to judge the feasibility of the concept, and to estimate the size and cost of a facility. The insoluble solids formed during these tests were primarily natrophosphate, natroxalate, and a sodium aluminosilicate compound. At the elevated temperature and 8 M [Na+], appreciable insoluble solids (1.39 wt%) were present. Cooling to room temperature and dilution of the slurry from 8 M to 5 M [Na+] resulted in a slurry containing 0.8 wt% insoluble solids. The solids (natrophosphate, natroxalate, sodium aluminum silicate, and a hydrated sodium phosphate) were relatively stable and settled quickly. Filtration rates were in the range of those observed with iron-based simulated Hanford tank sludge simulants, e.g., 6 M [Na+] Hanford tank 241-AN-102, even though their chemical speciation is considerably different. Chemical cleaning of the crossflow filter was readily accomplished with acid. As this simulant formulation was based on an average composition of a wide range of feeds using an integrated computer model, this exact composition may never be observed. But the test conditions were selected to enable comparison to the model to enable improving its chemical prediction capability.

  10. Influence of heterogeneity on second-kind self-similar solutions...

    Office of Scientific and Technical Information (OSTI)

    Influence of heterogeneity on second-kind self-similar solutions for viscous gravity currents Citation Details In-Document Search Title: Influence of heterogeneity on second-kind...

  11. Surface Characterization of Heterogeneous Catalysts Using Low Energy Ion Scattering Spectroscopy Combined with Electrochemistry 

    E-Print Network [OSTI]

    Axnanda, Stephanus R.

    2010-07-14

    Fundamental studies of heterogeneous catalysis were performed and presented in this dissertation to gain a better understanding of heterogeneous catalytic reactions at a molecular level. Surface science techniques were ...

  12. Analysis and optimization of heterogeneous materials using the variational asymptotic method for unit cell homogenization

    E-Print Network [OSTI]

    Yu, Wenbin

    1 Analysis and optimization of heterogeneous materials using the variational asymptotic method material and void are mixed artifi- cially. Keywords: Topology optimization; Homogenization method; Unit of the effective properties of periodically heterogeneous materials, within a periodic base cell. The sensitivities

  13. A theoretical and empirical exploration into the heterogeneous fragility of Chilean firms and workplaces

    E-Print Network [OSTI]

    Landerretche, Oscar

    2006-01-01

    This dissertation consists of three essays on the heterogeneous reactions of firms to shocks, with particular empirical applications to the Chilean economy. The first essay presents a model of heterogeneity in an economy ...

  14. Enhancing marketing with engineering: Optimal product line design for heterogeneous markets

    E-Print Network [OSTI]

    Papalambros, Panos

    Enhancing marketing with engineering: Optimal product line design for heterogeneous markets Jeremy design and development often require a balance of technical and market tradeoffs. Quantitative methods: John H. Roberts Keywords: Product line design Heterogeneity Decomposition Analytical target cascading

  15. ENHANCING MARKETING WITH ENGINEERING: OPTIMAL PRODUCT LINE DESIGN FOR HETEROGENEOUS MARKETS

    E-Print Network [OSTI]

    Papalambros, Panos

    ENHANCING MARKETING WITH ENGINEERING: OPTIMAL PRODUCT LINE DESIGN FOR HETEROGENEOUS MARKETS Jeremy of Business. #12;- 1 - ENHANCING MARKETING WITH ENGINEERING: OPTIMAL PRODUCT LINE DESIGN FOR HETEROGENEOUS MARKETS ABSTRACT Successful product line design and development often requires balancing technical

  16. Modeling Biogeochemistry and Flow within Heterogeneous Formations in Variably-Saturated Media 

    E-Print Network [OSTI]

    Arora, Bhavna

    2012-10-19

    parameters. To evaluate the effect of heterogeneity on redox processes, repacked soil columns with homogeneous and heterogeneous (layered) profiles from soil cores collected at the Norman Landfill site, Oklahoma, USA were employed. Results indicate...

  17. Environmental Kuznets Curve for carbon dioxide emissions: lack of robustness to heterogeneity?

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Environmental Kuznets Curve for carbon dioxide emissions: lack of robustness to heterogeneity applying the iterative Bayesian shrinkage procedure. The environmental Kuznets curve (EKC) hypothesis. Keywords: Environmental Kuznets curve; Bayesian shrinkage estimator; Heterogeneity JEL classification: O13

  18. Energy-Efficient Scheduling for Parallel Applications Running on Heterogeneous Clusters

    E-Print Network [OSTI]

    Qin, Xiao

    ), energy efficiency, and heterogeneities. Basically, processors, networks, disks, and cooling system1 Energy-Efficient Scheduling for Parallel Applications Running on Heterogeneous Clusters Ziliang 39406 mnijim@usm.edu § Department of Computer Science New Mexico Institute of Mining and Technology

  19. An Integrated Hardware-Software CosimulationEnvironment for Heterogeneous SystemsPrototyping

    E-Print Network [OSTI]

    Ha, Soonhoi

    An Integrated Hardware-Software CosimulationEnvironment for Heterogeneous Systems - In this paper, we present a hardware-software cosimulation environment for heterogeneoussystems of heterogeneous systems whose hardware and software components are interacting. Traditionally, the task has been

  20. RESEARCH ARTICLE Spatial spread of an alien tree species in a heterogeneous

    E-Print Network [OSTI]

    Petite, Samuel

    RESEARCH ARTICLE Spatial spread of an alien tree species in a heterogeneous forest landscape the observed invasion patterns of an alien tree species, Prunus serotina Ehrh., in a heterogeneous managed

  1. Micronesica 39(2): 297-314, 2007 Habitat Heterogeneity of Cycas micronesica Seed Chemistry

    E-Print Network [OSTI]

    Marler, Thomas E.

    to respond to environmental heterogeneity with phenotypic plasticity of secondary chemistry (Brenes- Arguedas & Coley 2005, Callaway et al. 2003). Phenotypic plasticity resulting from plant ontogeny and heterogeneous gametophyte toxins and determined that the most noxious in relation to neur

  2. Coexisting generalist herbivores occupy unique nutritional feeding niches

    E-Print Network [OSTI]

    Eubanks, Micky

    plant-feeding insects (26), and plant secondary metabolites (PSMs) function as a primary assembly rule absolute amounts and ratios even if they eat the same plant taxa. The existence of species-specific nutri physiological ecology geometric framework Ecological niches remain central to explaining community structure (1

  3. Faceted Models of Blog Feeds Department of Computer

    E-Print Network [OSTI]

    Meng, Weiyi

    Faceted Models of Blog Feeds Lifeng Jia Department of Computer Science University of Illinois@cs.binghamton.edu ABSTRACT Faceted blog distillation aims at retrieving the blogs that are not only relevant to a query blogs depict various topics related to the personal experiences of bloggers while official blogs deliver

  4. The Estimation of Salt and Molasses in Mixed Feeds 

    E-Print Network [OSTI]

    Fraps, G. S. (George Stronach)

    1931-01-01

    . KNOX, M. S., Animal IIushandry A. K. MACKEY, M. S., Animnl Hrrshondry *Dean School of Veterinary Medicine. ?As of May 1. 1931. **In cooperation with U. S. Department of Agriculture. A statement of the percentage of salt in mixed feeds is required...

  5. FEEDING POULTRY WASTES TO CATTLE PREPARED BY: JOSEPH P. FONTENOT

    E-Print Network [OSTI]

    FEEDING POULTRY WASTES TO CATTLE PREPARED BY: JOSEPH P. FONTENOT DEPARTMENT OF ANIMAL AND POULTRY TO CATTLE Joseph P. Fontenot Executive Summary Animal wastes are valuable resources if utilized judiciously of the wastes. Performance of cattle fed diets containing animal wastes is similar to that of animals fed

  6. Feeding and Risering of High Alloy Steel Castings

    E-Print Network [OSTI]

    Beckermann, Christoph

    Feeding and Risering of High Alloy Steel Castings Kent D. Carlson, Shouzhu Ou and Christoph radiographically sound castings at 2 pct sensitivity. By comparing results between plate casting trials known as the Niyama criterion and ASTM shrinkage x-ray level. This relationship was then used

  7. Managing Milk Composition: Feed Additives and Production Enhancers 

    E-Print Network [OSTI]

    Stokes, Sandra R.; Jordan, Ellen R.; Looper, Mike; Waldner, Dan

    2000-12-14

    Additivies and Production Enhancers Sandra R. Stokes, Dan N. Waldner, Ellen R. Jordan, and Michael L. Looper* L-5390 12/00 Feed additives and management tools such as bST (bovine somatotropin) play an essential role in enhanc- ing production and yield of milk...

  8. Waste Feed Delivery Environmental Permits and Approvals Plan

    SciTech Connect (OSTI)

    TOLLEFSON, K.S.

    2000-01-18

    This plan describes the environmental permits approvals, and other requirements that may affect establishment of a waste feed delivery system for the Hanford Site's River Protection Project. This plan identifies and screens environmental standards for potential applicability, outlines alternatives for satisfying applicable standards, and describes preferred permitting and approval approaches.

  9. ISHHC XIII International Symposium on the Relations between Homogeneous and Heterogeneous Catalysis

    E-Print Network [OSTI]

    Somorjai Ed., G.A.

    2007-01-01

    K. Lee Semiconductor Photocatalysis in Advanced Oxidationthermal) catalysis or photocatalysis on nanoporous supportswith Heterogeneous Photocatalysis using Nanostructured

  10. Heterogeneity for Increasing Performance and Reliability of Self-Reconfigurable Multi-Robot Organisms

    E-Print Network [OSTI]

    Kernbach, S; Humza, R; Liedke, J; Popesku, S; Russo, S; Ranzani, T; Manfredi, L; Stefanini, C; Matthias, R; Schwarzer, Ch; Girault, B; Alschbach, P; Meister, E; Scholz, O

    2011-01-01

    Homogeneity and heterogeneity represent a well-known trade-off in the design of modular robot systems. This work addresses the heterogeneity concept, its rationales, design choices and performance evaluation. We introduce challenges for self-reconfigurable systems, show advances of mechatronic and software design of heterogeneous platforms and discuss experiments, which intend to demonstrate usability and performance of this system.

  11. Heterogeneous freezing of ice on atmospheric aerosols containing ash, soot, and soil

    E-Print Network [OSTI]

    Heterogeneous freezing of ice on atmospheric aerosols containing ash, soot, and soil Adam P. Fornea in the atmosphere often occurs through heterogeneous freezing processes in which an atmospheric aerosol acts, heterogeneous nucleation may occur through one of several freezing mechanisms, including contact and immersion

  12. Tissue heterogeneity in the mouse lung: effects of elastase treatment Satoru Ito,1

    E-Print Network [OSTI]

    Lutchen, Kenneth

    Tissue heterogeneity in the mouse lung: effects of elastase treatment Satoru Ito,1 Edward P heterogeneity in the mouse lung: effects of elastase treatment. J Appl Physiol 97: 204­212, 2004. First to characterize heterogeneity of tissue elasticity of the lung. The model includes a parallel set of pathways

  13. Structural and energetic heterogeneity in protein folding. I. Theory Steven S. Plotkina)

    E-Print Network [OSTI]

    Plotkin, Steven S.

    Structural and energetic heterogeneity in protein folding. I. Theory Steven S. Plotkina) and Jose-energy functional methods to understand the effects of heterogeneity in the folding of a well-designed protein protein, both structural and energetic heterogeneity lower the thermodynamic barrier to folding. When

  14. Modeling Heterogeneous User Churn and Local Resilience of Unstructured P2P Networks

    E-Print Network [OSTI]

    Loguinov, Dmitri

    1 Modeling Heterogeneous User Churn and Local Resilience of Unstructured P2P Networks Zhongmei Yao on the resilience of un- structured P2P systems have not explicitly modeled heterogeneity of user churn (i, we introduce a generic model of heterogeneous user churn, derive the distribution of the various

  15. MpPVM : A Software System Non-Dedicated Heterogeneous Computing

    E-Print Network [OSTI]

    Sun, Xian-He

    MpPVM : A Software System for Non-Dedicated Heterogeneous Computing Kasidit Chanchio Xian-He Sun migration for PVM application programs in a non-dedicated heterogeneous computing environ- ment. New and promising performance of our process migration mechanism in the scalable non- dedicated heterogeneous

  16. Coal-CO[subscript 2] Slurry Feed for Pressurized Gasifiers: Slurry Preparation System Characterization and Economics

    E-Print Network [OSTI]

    Botero, Cristina

    Gasification-based plants with coal-CO[subscript 2] slurry feed are predicted to be more efficient than those with coal-water slurry feed. This is particularly true for high moisture, low rank coal such as lignite. ...

  17. Insulin Sensitivity in Tropically Adapted Cattle With Divergent Residual Feed Intake 

    E-Print Network [OSTI]

    Shafer, Gentrie

    2012-10-19

    Residual feed intake (RFI) is one method to identify feed efficient animals; however, this method is costly and time consuming therefore, identifying an indirect measure of RFI is important. Evaluating the glucoregulatory ...

  18. Renewable Energy Feed-in Tariffs: Lessons Learned from the U...

    Open Energy Info (EERE)

    Renewable Energy Feed-in Tariffs: Lessons Learned from the U.S. and Abroad Presentation Jump to: navigation, search Tool Summary Name: Renewable Energy Feed-in Tariffs: Lessons...

  19. Variation in energy expenditures between growing steers with divergent residual feed intakes 

    E-Print Network [OSTI]

    White, Monte Blaine III

    2006-04-12

    Objectives of this study were to determine if variation in energy expenditures contributed to differences in feed efficiency between low and high RFI steers. Nine steers with the lowest and highest residual feed intakes (RFI) were selected from 169...

  20. Sources of biological variation in residual feed intake in growing and finishing steers 

    E-Print Network [OSTI]

    Brown, Erin Gwen

    2006-04-12

    Objectives of this research were to characterize residual feed intake (RFI) in growing and finishing steers and examine phenotypic correlations between performance, feed efficiency, carcass, digestib ility, and physiological indicator traits...

  1. Regulation of lipogenic gene transcription during fasting and feeding/insulin: Role of USF, SREBP-1c, and BAF60c

    E-Print Network [OSTI]

    Wong, Roger Hoi Fung

    2010-01-01

    Gene Transcription during Fasting and Feeding/insulin: RoleGene Transcription during Fasting and Feeding/insulin: Roleproteins during the fasting/feeding transition. First, USF

  2. Modeling Heterogeneity in Networks using Uncertainty Quantification Tools

    E-Print Network [OSTI]

    Rajendran, Karthikeyan; Siettos, Constantinos I; Laing, Carlo R; Kevrekidis, Ioannis G

    2015-01-01

    Using the dynamics of information propagation on a network as our illustrative example, we present and discuss a systematic approach to quantifying heterogeneity and its propagation that borrows established tools from Uncertainty Quantification. The crucial assumption underlying this mathematical and computational "technology transfer" is that the evolving states of the nodes in a network quickly become correlated with the corresponding node "identities": features of the nodes imparted by the network structure (e.g. the node degree, the node clustering coefficient). The node dynamics thus depend on heterogeneous (rather than uncertain) parameters, whose distribution over the network results from the network structure. Knowing these distributions allows us to obtain an efficient coarse-grained representation of the network state in terms of the expansion coefficients in suitable orthogonal polynomials. This representation is closely related to mathematical/computational tools for uncertainty quantification (th...

  3. Time traces of individual kinesin motors suggest functional heterogeneity

    E-Print Network [OSTI]

    Reddy, Babu J N; Xu, Jing; Mattson, Michelle; Arabi, Karim; Vershinin, Michael; Gross, Steven; Hyeon, Changbong

    2015-01-01

    Conventional analysis of in vitro assays of motor proteins rests on the assumption that all proteins with the same chemical composition function identically; however molecule-to-molecule variation is often seen even in well-controlled experiments. In an effort to obtain a statistically meaningful set of time traces that simultaneously avoid any experimental artifacts, we performed quantum-dot labeled kinesin experiments on both surface and levitated microtubules. Similar to glassy systems, we found that mean velocities of individual kinesin motors vary widely from one motor to another, the variation of which is greater than that expected from the stochastic variation of stepping times. In the presence of heterogeneity, an ensemble-averaged quantity such as diffusion constant or randomness parameter is ill-defined. We propose to analyze heterogeneous data from single molecule measurements by decomposing them into homogeneous subensembles.

  4. Computational Modeling of Heterogeneous Reactive Materials at the Mesoscale

    SciTech Connect (OSTI)

    BAER, MARVIN R.

    1999-09-22

    The mesoscopic processes of consolidation, deformation and reaction of shocked porous energetic materials are studied using shock physics analysis of impact on a collection of discrete ''crystals.'' Highly resolved three-dimensional CTH simulations indicate that rapid deformation occurs at material contact points causing large amplitude fluctuations of stress states with wavelengths of the order of several particle diameters. Localization of energy produces ''hot-spots'' due to shock focusing and plastic work near internal boundaries as material flows into interstitial regions. Numerical experiments indicate that ''hot-spots'' are strongly influenced by multiple crystal interactions. Chemical reaction processes also produce multiple wave structures associated with particle distribution effects. This study provides new insights into the micromechanical behavior of heterogeneous energetic materials strongly suggesting that initiation and sustained reaction of shocked heterogeneous materials involves states distinctly different from single jump state descriptions.

  5. Facilitated diffusion on mobile DNA: configurational traps and sequence heterogeneity

    E-Print Network [OSTI]

    C. A. Brackley; M. E. Cates; D. Marenduzzo

    2012-12-07

    We present Brownian dynamics simulations of the facilitated diffusion of a protein, modelled as a sphere with a binding site on its surface, along DNA, modelled as a semi-flexible polymer. We consider both the effect of DNA organisation in 3D, and of sequence heterogeneity. We find that in a network of DNA loops, as are thought to be present in bacterial DNA, the search process is very sensitive to the spatial location of the target within such loops. Therefore, specific genes might be repressed or promoted by changing the local topology of the genome. On the other hand, sequence heterogeneity creates traps which normally slow down facilitated diffusion. When suitably positioned, though, these traps can, surprisingly, render the search process much more efficient.

  6. Assembling thefacebook: Using heterogeneity to understand online social network assembly

    E-Print Network [OSTI]

    Jacobs, Abigail Z; Ugander, Johan; Clauset, Aaron

    2015-01-01

    Online social networks represent a popular and highly diverse class of social media systems. Despite this variety, each of these systems undergoes a general process of online social network assembly, which represents the complicated and heterogeneous changes that transform newly born systems into mature platforms. However, little is known about this process. For example, how much of a network's assembly is driven by simple growth? How does a network's structure change as it matures? How does network structure vary with adoption rates and user heterogeneity, and do these properties play different roles at different points in the assembly? We investigate these and other questions using a unique dataset of online connections among the roughly one million users at the first 100 colleges admitted to Facebook, captured just 20 months after its launch. We first show that different vintages and adoption rates across this population of networks reveal temporal dynamics of the assembly process, and that assembly is onl...

  7. In this project, researchers de-veloped alternative feeds for two

    E-Print Network [OSTI]

    Tryon, Michael D.

    that will be infused into pellets for feed for rainbow trout, part of another project. Image: Stephen Ausmus for USDA

  8. Evidence for heterogeneity in facioscapulohumeral muscular dystrophy (FSHD)

    SciTech Connect (OSTI)

    Gilbert, J.R.; Stajich, J.M.; Wall, S.; Carter, S.C.; Qiu, H.; Vance, J.M.; Stewart, C.S.; Speer, M.C.; Pufky, J.; Yamaoka, L.H.; Rozear, M.; Roses, A.D.; Pericak-Vance, M.A. (Duke Univ. Medical Center, Durham, NC (United States)); Samson, F.; Fardeau, M. (INSERM, Paris (France))

    1993-08-01

    Facioscapulohumeral muscular dystrophy (FSHD) is a slowly progressive primary disease of muscle which is usually inherited as an autosomal dominant disorder. FSHD has been localized to the long arm of chromosome 4, specifically to the 4q3.5-qter region. Initially published linkage studies showed no evidence for heterogeneity in FSHD. In the present study the authors have examined individuals in seven FSHD families. Two-point lod scores show significant evidence for linkage for D4S163 (lod score 3.04 at recombination fraction .21) and D4S139 (lod score 3.84 at recombination fraction .20). D4S171 also gave a positive score (lod score 2.56 at recombination fraction .24). Significant evidence for heterogeneity was found for each of the three markers. Multipoint linkage analysis in this region resulted in a peak multipoint lod score of 6.47. The multipoint analysis supported the two-point studies with odds of 20:1 showing linkage and heterogeneity over linkage and homogeneity. Five of the seven families gave a posterior probability of >95% of being of the linked type, while two families appeared unlinked to this region of 4q (P<.01%). Individuals in the two unlinked families met the clinical criteria for the diagnosis of FSHD, including facial weakness, clavicular flattening, scapula winging, proximal muscle weakness, and myopathic changes on muscle biopsies without inflammatory or mitochondrial pathology. This study demonstrates genetic heterogeneity in FSHD and has important implications for both genetic counseling and the elucidation of the etiology of FSHD. 19 refs., 3 figs., 2 tabs.

  9. A distributed scientific visualization paradigm for heterogeneous computer networks 

    E-Print Network [OSTI]

    Lenox, Mark Wayne

    1990-01-01

    hardware product called VX/MVX that uses multiple processors to perform visualization tasks [33]. It is not a heterogeneous distributed environment, however, in that all the processors are located within a single Sun workstation, as shown below in figure... pipeline, and minimization of supercomputer re- source demand are all design features of apE [17]. apE, which stands for animation production Environment, abstracts data in the form of the FLUX language [17]. FLUX has built in capabilities that make...

  10. Incorporating reservoir heterogeneity with geostatistics to investigate waterflood recoveries

    SciTech Connect (OSTI)

    Wolcott, D.S. ); Chopra, A.K. )

    1993-03-01

    This paper presents an investigation of infill drilling performance and reservoir continuity with geostatistics and a reservoir simulator. The geostatistical technique provides many possible realizations and realistic descriptions of reservoir heterogeneity. Correlation between recovery efficiency and thickness of individual sand subunits is shown. Additional recovery from infill drilling results from thin, discontinuous subunits. The technique may be applied to variations in continuity for other sandstone reservoirs.

  11. Modification of heterogeneous chemistry by complex substrate morphology

    SciTech Connect (OSTI)

    Henson, B.F.; Buelow, S.J.; Robinson, J.M.

    1998-12-31

    This is the final report of a one-year, Laboratory Directed Research and Development (LDRD) project at Los Alamos National Laboratory (LANL). Chemistry in many environmental systems is determined at some stage by heterogeneous reaction with a surface. Typically the surface exists as a dispersion or matrix of particulate matter or pores, and a determination of the heterogeneous chemistry of the system must address the extent to which the complexity of the environmental surface affects the reaction rates. Reactions that are of current interest are the series of chlorine nitrate reactions important in polar ozone depletion. The authors have applied surface spectroscopic techniques developed at LANL to address the chemistry of chlorine nitrate reactions on porous nitric and sulfuric acid ice surfaces as a model study of the measurement of complex, heterogeneous reaction rates. The result of the study is an experimental determination of the surface coverage of one adsorbed reagent and a mechanism of reactivity based on the dependence of this coverage on temperature and vapor pressure. The resulting mechanism allows the first comprehensive modeling of chlorine nitrate reaction probability data from several laboratories.

  12. HeNCE: A Heterogeneous Network Computing Environment

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

    Beguelin, Adam; Dongarra, Jack J.; Geist, George Al; Manchek, Robert; Moore, Keith

    1994-01-01

    Network computing seeks to utilize the aggregate resources of many networked computers to solve a single problem. In so doing it is often possible to obtain supercomputer performance from an inexpensive local area network. The drawback is that network computing is complicated and error prone when done by hand, especially if the computers have different operating systems and data formats and are thus heterogeneous. The heterogeneous network computing environment (HeNCE) is an integrated graphical environment for creating and running parallel programs over a heterogeneous collection of computers. It is built on a lower level package called parallel virtual machine (PVM).more »The HeNCE philosophy of parallel programming is to have the programmer graphically specify the parallelism of a computation and to automate, as much as possible, the tasks of writing, compiling, executing, debugging, and tracing the network computation. Key to HeNCE is a graphical language based on directed graphs that describe the parallelism and data dependencies of an application. Nodes in the graphs represent conventional Fortran or C subroutines and the arcs represent data and control flow. This article describes the present state of HeNCE, its capabilities, limitations, and areas of future research.« less

  13. Heterogeneous composite bodies with isolated lenticular shaped cermet regions

    DOE Patents [OSTI]

    Sherman, Andrew J. (Cirtland Hills, OH)

    2009-12-22

    A heterogeneous body having ceramic rich cermet regions in a more ductile metal matrix. The heterogeneous bodies are formed by thermal spray operations on metal substrates. The thermal spray operations apply heat to a cermet powder and project it onto a solid substrate. The cermet powder is composed of complex composite particles in which a complex ceramic-metallic core particle is coated with a matrix precursor. The cermet regions are generally comprised of complex ceramic-metallic composites that correspond approximately to the core particles. The cermet regions are approximately lenticular shaped with an average width that is at least approximately twice the average thickness. The cermet regions are imbedded within the matrix phase and generally isolated from one another. They have obverse and reverse surfaces. The matrix phase is formed from the matrix precursor coating on the core particles. The amount of heat applied during the formation of the heterogeneous body is controlled so that the core particles soften but do not become so fluid that they disperse throughout the matrix phase. The force of the impact on the surface of the substrate tends to flatten them. The flattened cermet regions tend to be approximately aligned with one another in the body.

  14. Digestibility of the Sugars, Starches, Pentosans, and Protein of Some Feeding Stuffs. 

    E-Print Network [OSTI]

    Fraps, G. S. (George Stronach)

    1922-01-01

    STATION AGRICULTURAL AND MECHANICAL COLLEGE OF TEXAS W. B. BIZZELL. President BULLETIN NO. 290 FEBRUARY, 1922 DIVISION OF CHEMISTRY DIGESTIBILITY OF THE SUGARS, STARCHES, PENTOSANS, AND PROTEIDS OF SOME FEEDING STUFFS B. YOUNGBLOOD, DI... .................................... Digestibility of the Feeds 14 .............................. Digestibility by Groups of Feeds 19 ................................... Proteids and Non.proteids 20 Acknowledgment ........................................... 21...

  15. Two-Hop Relay Channels with Limited FeedBack TELECOM ParisTech

    E-Print Network [OSTI]

    Boyer, Edmond

    Two-Hop Relay Channels with Limited FeedBack Ali Osmane TELECOM ParisTech Paris, France Email and feeds it back to the relays. We propose an iterative algorithm to find this optimal rotation vector by the destination and feed it back to the relays. This algorithm is shown to have the same performance as an optimal

  16. Feeding of Nickel-Based Alloys Kent D. Carlson, Shouzhu Ou and Christoph Beckermann

    E-Print Network [OSTI]

    Beckermann, Christoph

    as the distance over which a riser can provide feed metal resulting in a sound casting. This is an important&LA) and high alloy steel castings, a similar project is underway to develop feeding distance rules. Casting trials were performed at five foundries to produce experimental feeding distance results

  17. To understand the function and evolution of feeding mechanisms in vertebrates, we must have a thorough

    E-Print Network [OSTI]

    Summers, Adam P.

    protrusion. This study represents the first electromyographic and kinematic analysis of the feeding mechanismTo understand the function and evolution of feeding mechanisms in vertebrates, we must have knowledge of the evolution of aquatic feeding mechanisms, however, is limited by a lack of studies

  18. Colonising aliens: caterpillars (Lepidoptera) feeding on Piper aduncum and P. umbellatum in rainforests of

    E-Print Network [OSTI]

    Basset, Yves

    Colonising aliens: caterpillars (Lepidoptera) feeding on Piper aduncum and P. umbellatum.S.A. Abstract. 1. Caterpillar assemblages feeding on two alien plants, Piper aduncum and P. umbellatum, were alien Piper increased with its host range from 3% for the species feeding on a single plant family to 92

  19. Annual Report of the Feed Control Service, 1953-54. 

    E-Print Network [OSTI]

    Anonymous

    1954-01-01

    .0 Fish scrap (60r/ protein) .......................... 10.3 Meat and bon~'scraps ............................ 10.6 Sorghum gluten meal .............................. 10.8 Corn gluten meal ................................. 11.2 Linseed meal... protein, minimum percentage of crude fat, minimum percentage of nitrogen-free extract, maximum percentage of crude fiber, names of ingredients of a mixed feed, percentage of each ingredient when adulterants are present, and the percentage of each...

  20. Economics of Cattle Feeding Systems for West Texas. 

    E-Print Network [OSTI]

    Hughes, W. F.; Fisher, C. E.; Marion, P. T.; Magee, A. C.

    1957-01-01

    ~ '6 $9 "4; ,p*, d Economics of Cattle Feeding Systems for West Texas ,,5~'* ,LI~~ 3 TEXAS AGRICULTURAL EXPERIMENT STATION R. D. LEWIS, DIRECTOR, COLLEGE STATION, TEXAS SUMMARY The purpose of the study reported here is to assist West Texas.... - Rations high in grain and low in roughage were the most profitable with cheap grain, but the comparative position of high-forage rations is enhanced when grain prices are high. Satisfactory results have been obtained with cottonseed hulls...

  1. Commercial Feeding Stuffs, September 1, 1934 to August 31, 1935. 

    E-Print Network [OSTI]

    Fuller, F. D. (Frederick Driggs); Sullivan, James

    1935-01-01

    usually is low in digestible protein and productive energy. Cottonseed hulls, oat hulls, peanut hulls, rice hulls, corn cobs, and materials of a similar nature contain high per- centages of crude fiber. If sufficient bulky materials are available... certain-limits, it indicates that the feed is adulterated with cottonseed hulls. In a similar way, crude fiber in excess of a given standard indicates the presence of corn cobs or corn bran in corn chop, rice hulls in rice bran, etc. Nitrogen...

  2. Losses of Vitamin A and Carotene from Feeds During Storage. 

    E-Print Network [OSTI]

    Fraps, G. S. (George Stronach); Kemmerer, A. R. (Arthur Russell)

    1937-01-01

    . CONNER, 1)IRECTOR COLLEGE STATION, BRAZOS COUNTY, TEXAS BULLETIN NO. 557 OCTOBER, 1937 DIVISION OF CHEMISTRY Losses of Vitamin A and Carotene From Feeds During Storage LIBRARY Agricultural & Mechanical ,l~l!egge of Texas AGRICULTURAL... liver oils, fish liver oil concentrates or solutions of carotene in oil, or yellow corn or alfalfa leaf meal of high potency. Since vitamin A and carotene are both unstable, it is important to know whether these substances would remain in commercial...

  3. Frequency of Feeding Protein Supplement to Range Cattle. 

    E-Print Network [OSTI]

    Melton, A. A.; Riggs, J. K.

    1964-01-01

    /ment To Range Cattle f~~~~ AGRICULTURAL EXPE-RIMENT STATION, R. E. Patterson, Director E \\&'wintering Hereford heifers and cows were supplementally fed cottonseed cake on pasture... in the Davis Mountain area of Texas during four winters, 1958-62. The accompanying feeding schedules were used. Two pounds per head daily the first year and 3 pounds daily the last 3 years. Seven pounds per head on Tuesdays and Satur- days during...

  4. Maximum total organic carbon limit for DWPF melter feed

    SciTech Connect (OSTI)

    Choi, A.S.

    1995-03-13

    DWPF recently decided to control the potential flammability of melter off-gas by limiting the total carbon content in the melter feed and maintaining adequate conditions for combustion in the melter plenum. With this new strategy, all the LFL analyzers and associated interlocks and alarms were removed from both the primary and backup melter off-gas systems. Subsequently, D. Iverson of DWPF- T{ampersand}E requested that SRTC determine the maximum allowable total organic carbon (TOC) content in the melter feed which can be implemented as part of the Process Requirements for melter feed preparation (PR-S04). The maximum TOC limit thus determined in this study was about 24,000 ppm on an aqueous slurry basis. At the TOC levels below this, the peak concentration of combustible components in the quenched off-gas will not exceed 60 percent of the LFL during off-gas surges of magnitudes up to three times nominal, provided that the melter plenum temperature and the air purge rate to the BUFC are monitored and controlled above 650 degrees C and 220 lb/hr, respectively. Appropriate interlocks should discontinue the feeding when one or both of these conditions are not met. Both the magnitude and duration of an off-gas surge have a major impact on the maximum TOC limit, since they directly affect the melter plenum temperature and combustion. Although the data obtained during recent DWPF melter startup tests showed that the peak magnitude of a surge can be greater than three times nominal, the observed duration was considerably shorter, on the order of several seconds. The long surge duration assumed in this study has a greater impact on the plenum temperature than the peak magnitude, thus making the maximum TOC estimate conservative. Two models were used to make the necessary calculations to determine the TOC limit.

  5. Commercial Feeding Stuffs, September 1, 1921, to August 31, 1922. 

    E-Print Network [OSTI]

    Youngblood, B. (Bonney)

    1922-01-01

    tags securely attached to bags: (a) Net weight of package. (b) Name of feeding stuff. (c) Name and address of manufacturer or importer. (d) Place of manufacture. (e) Minimum percentage of crude protein. (f) Minimum percentage of crude fat. (g... COUNTY, ""- ' " STATION DMINISTRATION B YOUNGRLOOD. M. S , Ph. D.. Director CHARLES A. FELKER, Chief Clerk A. S. WARE. S~cretarg A. D. JACKSON, Executir~e Assisfont CHARLES GORZYCKI. Technical Assistnnt M. P. FTOLLEMAN. JR.. As~istnnt Chip2 Clerk...

  6. Serum leptin concentration varies with meal size and feeding frequency 

    E-Print Network [OSTI]

    Bruce, Samantha Michelle

    2004-11-15

    ghrelin. In vitro, ghrelin has been shown to increase expression of both NPY and ? -MSH (Nakazato et al., 2001). 6 Likewise, feed-restricted mice receiving exogenous leptin maintained normal ghrelin concentrations, while pair-fed control mice... experienced a 40% increase in ghrelin (Barazzoni et al., 2003). These investigators drew the conclusion that leptin negatively regulates ghrelin, and that ghrelin rose in the control mice due to a lack of inhibition from leptin. However, the loose...

  7. Evaluating Feed Delivery Performance in Scaled Double-Shell Tanks

    SciTech Connect (OSTI)

    Lee, Kearn P.; Thien, Michael G.

    2013-11-07

    The Hanford Tank Operations Contractor (TOC) and the Hanford Waste Treatment and Immobilization Plant (WTP) contractor are both engaged in demonstrating mixing, sampling, and transfer system capability using simulated Hanford High-Level Waste (HLW) formulations. This work represents one of the remaining technical issues with the high-level waste treatment mission at Hanford. The TOCs' ability to adequately mix and sample high-level waste feed to meet the WTP WAC Data Quality Objectives must be demonstrated. The tank mixing and feed delivery must support both TOC and WTP operations. The tank mixing method must be able to remove settled solids from the tank and provide consistent feed to the WTP to facilitate waste treatment operations. Two geometrically scaled tanks were used with a broad spectrum of tank waste simulants to demonstrate that mixing using two rotating mixer jet pumps yields consistent slurry compositions as the tank is emptied in a series of sequential batch transfers. Testing showed that the concentration of slow settling solids in each transfer batch was consistent over a wide range of tank operating conditions. Although testing demonstrated that the concentration of fast settling solids decreased by up to 25% as the tank was emptied, batch-to-batch consistency improved as mixer jet nozzle velocity in the scaled tanks increased.

  8. High pressure feeder and method of operating to feed granular or fine materials

    DOE Patents [OSTI]

    Vimalchand, Pannalal; Liu, Guohai; Peng, Wan Wang

    2014-10-07

    A coal feed system to feed pulverized low rank coals containing up to 25 wt % moisture to gasifiers operating up to 1000 psig pressure is described. The system includes gas distributor and collector gas permeable pipes imbedded in the lock vessel. Different methods of operation of the feed system are disclosed to minimize feed problems associated with bridging and packing of the pulverized coal. The method of maintaining the feed system and feeder device exit pressures using gas addition or extraction with the pressure control device is also described.

  9. Final Technical Report - Investigation into the Relationship between Heterogeneity and Heavy-Tailed Solute Transport

    SciTech Connect (OSTI)

    Weissmann, Gary S

    2013-12-06

    The objective of this project was to characterize the influence that naturally complex geologic media has on anomalous dispersion and to determine if the nature of dispersion can be estimated from the underlying heterogeneous media. The UNM portion of this project was to provide detailed representations of aquifer heterogeneity through producing highly-resolved models of outcrop analogs to aquifer materials. This project combined outcrop-scale heterogeneity characterization (conducted at the University of New Mexico), laboratory experiments (conducted at Sandia National Laboratory), and numerical simulations (conducted at Sandia National Laboratory and Colorado School of Mines). The study was designed to test whether established dispersion theory accurately predicts the behavior of solute transport through heterogeneous media and to investigate the relationship between heterogeneity and the parameters that populate these models. The dispersion theory tested by this work was based upon the fractional advection-dispersion equation (fADE) model. Unlike most dispersion studies that develop a solute transport model by fitting the solute transport breakthrough curve, this project explored the nature of the heterogeneous media to better understand the connection between the model parameters and the aquifer heterogeneity. We also evaluated methods for simulating the heterogeneity to see whether these approaches (e.g., geostatistical) could reasonably replicate realistic heterogeneity. The UNM portion of this study focused on capturing realistic geologic heterogeneity of aquifer analogs using advanced outcrop mapping methods.

  10. MRI of Heterogeneous Hydrogenation Reactions Using Parahydrogen Polarization

    SciTech Connect (OSTI)

    Burt, Scott R; Burt, Scott R.

    2008-06-25

    The power of magnetic resonance imaging (MRI) is its ability to image the internal structure of optically opaque samples and provide detailed maps of a variety of important parameters, such as density, diffusion, velocity and temperature. However, one of the fundamental limitations of this technique is its inherent low sensitivity. For example, the low signal to noise ratio (SNR) is particularly problematic for imaging gases in porous materials due to the low density of the gas and the large volume occluded by the porous material. This is unfortunate, as many industrially relevant chemical reactions take place at gas-surface interfaces in porous media, such as packed catalyst beds. Because of this severe SNR problem, many techniques have been developed to directly increase the signal strength. These techniques work by manipulating the nuclear spin populations to produce polarized} (i.e., non-equilibrium) states with resulting signal strengths that are orders of magnitude larger than those available at thermal equilibrium. This dissertation is concerned with an extension of a polarization technique based on the properties of parahydrogen. Specifically, I report on the novel use of heterogeneous catalysis to produce parahydrogen induced polarization and applications of this new technique to gas phase MRI and the characterization of micro-reactors. First, I provide an overview of nuclear magnetic resonance (NMR) and how parahydrogen is used to improve the SNR of the NMR signal. I then present experimental results demonstrating that it is possible to use heterogeneous catalysis to produce parahydrogen-induced polarization. These results are extended to imaging void spaces using a parahydrogen polarized gas. In the second half of this dissertation, I demonstrate the use of parahydrogen-polarized gas-phase MRI for characterizing catalytic microreactors. Specifically, I show how the improved SNR allows one to map parameters important for characterizing the heat and mass transport in a heterogeneous catalyst bed. This is followed by appendices containing detailed information regarding the design and use of my experimental setup.

  11. Microgrids and Heterogeneous Security, Quality, Reliability, andAvailability

    SciTech Connect (OSTI)

    Marnay, Chris

    2007-01-31

    This paper describes two stylized alternative visions inpopular currencyof how the power system might evolve to meet futurerequirements for the high quality electricity service that modern digitaleconomies demand, a supergrids paradigm and a dispersed paradigm. Some ofthe economics of the dispersed vision are explored. Economic perspectivesare presented on both the choice of homogeneous universal power qualityupstream in the electricity supply, and also on the extremelyheterogeneous require-ments of end-use loads. Finally, the potential roleof microgrids in delivering heterogeneous power quality is demonstratedby reference to two ongoing microgrid tests in the U.S. andJapan.

  12. Superconducting transition temperature in heterogeneous ferromagnet-superconductor systems 

    E-Print Network [OSTI]

    Pokrovsky, Valery L.; Wei, HD.

    2004-01-01

    ,2 , Chernogolovka o o orde e factor S PHYSICAL REVIEW B 69, 104530 ~2004! the magnetization in the FM film and the vorticity of vortices in the SC film alternate together. In this paper we study the SC transition in heterogeneous FM-SC systems including... the FSB, multilayers, and super- conducting film with a periodic array of magnetic dots ~SFMD!. For this purpose we extend the theory of spontane- ous SC-FM structures developed in the work17 to the case of multilayers. We demonstrate that in the FSB...

  13. A heterogeneous hierarchical architecture for real-time computing

    SciTech Connect (OSTI)

    Skroch, D.A.; Fornaro, R.J.

    1988-12-01

    The need for high-speed data acquisition and control algorithms has prompted continued research in the area of multiprocessor systems and related programming techniques. The result presented here is a unique hardware and software architecture for high-speed real-time computer systems. The implementation of a prototype of this architecture has required the integration of architecture, operating systems and programming languages into a cohesive unit. This report describes a Heterogeneous Hierarchial Architecture for Real-Time (H{sup 2} ART) and system software for program loading and interprocessor communication.

  14. Dynamical heterogeneities in an attraction driven colloidal glass

    E-Print Network [OSTI]

    Antonio M. Puertas; Matthias Fuchs; Michael E. Cates

    2006-01-16

    The dynamical heterogeneities (DH) in non-ergodic states of an attractive colloidal glass are studied, as a function of the waiting time. Whereas the fluid states close to vitrify showed strong DH, the distribution of squared displacements of the glassy states studied here only present a tail of particles with increased mobility for the lower attraction strength at short waiting times. These particles are in the surface of the percolating cluster that comprises all of the particles, reminiscent of the fastest particles in the fluid. The quench deeper into the attractive glass is dynamically more homogeneous, in agreement with repulsive glasses (i.e. Lennard-Jones glass).

  15. Modeling micro-macro pedestrian counterflow in heterogeneous domains

    E-Print Network [OSTI]

    Joep Evers; Adrian Muntean

    2010-11-05

    We present a micro-macro strategy able to describe the dynamics of crowds in heterogeneous media. Herein we focus on the example of pedestrian counterflow. The main working tools include the use of mass and porosity measures together with their transport as well as suitable application of a version of Radon-Nikodym Theorem formulated for finite measures. Finally, we illustrate numerically our microscopic model and emphasize the effects produced by an implicitly defined social velocity. Keywords: Crowd dynamics; mass measures; porosity measure; social networks

  16. An advanced feed pump based on magnetic bearings

    SciTech Connect (OSTI)

    Hanson, L.

    1996-11-01

    Pumps have not used magnetic bearings commercially due to their high initial cost and the perception of a high risk to reward ratio. However, by taking advantage of the capability of the bearings to operate submerged in the pumped liquid, an advanced boiler feed pump has been developed with measurably improved efficiency and reduced seal maintenance. When the economic value of these improvements are evaluated against the additional first cost of the bearing change, attractive paybacks are generated for most new plant applications and even for some retrofits where the first cost reductions from eliminating the oil system, bearings, and seals do not apply. These savings are in addition to the benefits long recognized for magnetic bearings: improved reliability; built-in remote monitoring and diagnostics; elimination of the pressure feed oil system and its maintenance and potential fire hazard. Based on these advantages a research and development prototype pump incorporating the new technology was built and tested. A commercial opportunity to demonstrate this new design arose in 1994 and resulted in the sale of an eight stage, 3500 HP feed pump to Tampa Electric Company for their new Polk Station Generating Plant. This is the largest known magnetic bearing pump delivered for commercial operation worldwide. The pump was shipped during August 1995 and is expected to enter service during the first half of 1996. This paper will briefly introduce magnetic bearings and then discuss the design of the advanced pump. The basis for predicting improved efficiency and estimating its value will be presented followed by the experience in manufacturing and testing the pump for Polk Generating Station.

  17. Commercial Feeding Stuffs, September 1, 1936 to August 31, 1937. 

    E-Print Network [OSTI]

    Fuller, F. D. (Frederick Driggs); Sullivan, James

    1937-01-01

    of crude fiber. Corn Oil Cake consists of the corn germ from which part of the oil has been pressed and is the product obtained in the wet-milling process of 20 BULLETIN NO. 555, TEXAS AGRICULTURAL EXPERIMENT STATION manufacture of cornstarch, corn.... The average composition, digestible protein, and productive energy of many feeding stuffs analyzed are shown in a table. A table is given showing the average protein content of the cottonseed products made by each oil mill, so that the reader can see which...

  18. THE HANFORD WASTE FEED DELIVERY OPERATIONS RESEARCH MODEL

    SciTech Connect (OSTI)

    BERRY J; GALLAHER BN

    2011-01-13

    Washington River Protection Solutions (WRPS), the Hanford tank farm contractor, is tasked with the long term planning of the cleanup mission. Cleanup plans do not explicitly reflect the mission effects associated with tank farm operating equipment failures. EnergySolutions, a subcontractor to WRPS has developed, in conjunction with WRPS tank farms staff, an Operations Research (OR) model to assess and identify areas to improve the performance of the Waste Feed Delivery Systems. This paper provides an example of how OR modeling can be used to help identify and mitigate operational risks at the Hanford tank farms.

  19. Digestibility of Feeds and Human Foods by Chickens. 

    E-Print Network [OSTI]

    Fraps, G. S. (George Stronach)

    1944-01-01

    or leave only a small amount. At the end of the preliminary period, the wire cage and excrement pans were well cleaned by scraping and washing.. The chickens were then fed slightly smaller amounts of feed for a period of 4 days, dur- ing which....4 grams excrement into a beaker, add 25 cc of ice-cold alcohol 2nd allow the beaker to stand in cold water for 30 minutes. Filter off t11~ excrement, wash twice with cold alcohol and then three times \\+-it11 eiller. Allow to dry and return to the beaker...

  20. Commercial Feeding Stuffs, September 1, 1928, to August 31, 1929. 

    E-Print Network [OSTI]

    Fuller, F. D. (Frederick Driggs)

    1929-01-01

    to determine how to analyze RABI from the instrument to resolve scattering layers, and then to seek secondary deep scattering layers of potential prey species below the main deep scattering layer, from 600 to 800 meters in the feeding range for Gulf... of sea surface height taken mid-cruise for each of the four SWSS cruises on the R/V Gyre from 2002 to 2003.... Time series of 38-kHz ADCP RABI at 600 and 700 meters during SWSS 2003 habitat and survey cruise...

  1. Nitrite in feed: From Animal health to human health

    SciTech Connect (OSTI)

    Cockburn, Andrew; Brambilla, Gianfranco; Fernández, Maria-Luisa; Arcella, Davide; Peteghem, Carlos van; Dorne, Jean-Lou

    2013-08-01

    Nitrite is widely consumed from the diet by animals and humans. However the largest contribution to exposure results from the in vivo conversion of exogenously derived nitrate to nitrite. Because of its potential to cause to methaemoglobin (MetHb) formation at excessive levels of intake, nitrite is regulated in feed and water as an undesirable substance. Forages and contaminated water have been shown to contain high levels of nitrate and represent the largest contributor to nitrite exposure for food-producing animals. Interspecies differences in sensitivity to nitrite intoxication principally result from physiological and anatomical differences in nitrite handling. In the case of livestock both pigs and cattle are relatively susceptible. With pigs this is due to a combination of low levels of bacterial nitrite reductase and hence potential to reduce nitrite to ammonia as well as reduced capacity to detoxify MetHb back to haemoglobin (Hb) due to intrinsically low levels of MetHb reductase. In cattle the sensitivity is due to the potential for high dietary intake and high levels of rumen conversion of nitrate to nitrite, and an adaptable gut flora which at normal loadings shunts nitrite to ammonia for biosynthesis. However when this escape mechanism gets overloaded, nitrite builds up and can enter the blood stream resulting in methemoglobinemia. Looking at livestock case histories reported in the literature no-observed-effect levels of 3.3 mg/kg body weight (b.w.) per day for nitrite in pigs and cattle were estimated and related to the total daily nitrite intake that would result from complete feed at the EU maximum permissible level. This resulted in margins of safety of 9-fold and 5-fold for pigs and cattle, respectively. Recognising that the bulkiness of animal feed limits their consumption, these margins in conjunction with good agricultural practise were considered satisfactory for the protection of livestock health. A human health risk assessment was also carried out taking into account all direct and indirect sources of nitrite from the human diet, including carry-over of nitrite in animal-based products such as milk, eggs and meat products. Human exposure was then compared with the acceptable daily intake (ADI) for nitrite of 0-0.07 mg/kg b.w. per day. Overall, the low levels of nitrite in fresh animal products represented only 2.9% of the total daily dietary exposure and thus were not considered to raise concerns for human health. It is concluded that the potential health risk to animals from the consumption of feed or to man from eating fresh animal products containing nitrite, is very low.

  2. Innovative Feed-In Tariff Designs that Limit Policy Costs

    SciTech Connect (OSTI)

    Kreycik, Claire; Couture, Toby D.; Cory, Karlynn S.

    2011-06-01

    Feed-in tariffs (FITs) are the most prevalent policy used globally to reduce development risks, cut financing costs, and grow the renewable energy industry. However, concerns over escalating costs in jurisdictions with FIT policies have led to increased attention on cost control. Using case studies and market-focused analysis, this report from the National Renewable Energy Laboratory (NREL) examines strengths and weaknesses of three cost-containment tools: (1) caps, (2) payment level adjustment mechanisms, and (3) auction-based designs. The report provides useful insights on containing costs for policymakers and regulators in the United States and other areas where FIT policies are in development.

  3. Commercial Feeding Stuffs: September 1, 1919 to August 31, 1920. 

    E-Print Network [OSTI]

    Fuller, F. D. (Frederick Driggs)

    1920-01-01

    AND PHYSIOLOGY J. J. TAU~ENHAUS, Ph. D., Chief FEED CONTROL SERVICE F. n. FULLER, M. S...Chief S. D. PEARCC, Erecufroe Secretary FORESTRY E. 0. SIECKE. B. S.. Chid: State Forester PLANT BREEDING E. P. HUMBERT. Ph. D., ( FARM AND RANCH ECCI A. B. Cox, Ph.... V S. Veterinarian . D. H. BENGEIT, V. M. D., Veferinarian CHEMISTRY G S FRAPS Ph D Chief State Chemist S ' E ' ASBUR; M. S" ~ssisianf Chemist S: LO MAN IT^, b. S., ';1ssisfanf Chemist J. B. SMITH, B. S.. Assistanf Chemist WALDO WALKER...

  4. Commercial Feeding Stuffs : September 1, 1920, to August 31, 1921. 

    E-Print Network [OSTI]

    Youngblood, B. (Bonney)

    1921-01-01

    in Charge FEED CONTROL SERVICE B. YOUNGBLOOD, Ph. D., Director F. D. FULLER, M. S., Chief Inspector SUBSTATIONS No. 1. Beeville, Bee County No. 8. Lubbock, Lubbock County I. E. COWART, M. S., Superintendent R. E. KARPER...

  5. Commercial Feeding Stuffs: September 1, 1918 to August 31, 1919. 

    E-Print Network [OSTI]

    Fuller, F. D. (Frederick Driggs)

    1919-01-01

    ., Assistant Animal Husbanamnn R. M. SHFRWOOD, B S., Poult~yman J. B. MCNULTY, B. S , Dairyman ENTOMOLOGY F B PADDOCK M.S Chief. State Entomologi, H' .J: REINHA& B. 'k ~ntfomologist \\v.. E. Jnc~tso~.'~. F "~ssistant Enfomologi, I-I. B. PARKS, B.... ~.,'>piculfurist AGRONOMY A. R. CONNER B. S. Chief -4. 13. LE~DIGH: B. S' Agronomist E W GFYER B S 'hgronomist H. H.' LA;DE,' M.. s', ~gronomist FEED CONTROL SERVICE F. D. FULLER, M. S., Cl~jef JAMES SULLIVAN, Executzue Secretary PLANT PATHOLOGY...

  6. Feed-forward digital phase and amplitude correction system

    DOE Patents [OSTI]

    Yu, D.U.L.; Conway, P.H.

    1994-11-15

    Phase and amplitude modifications in repeatable RF pulses at the output of a high power pulsed microwave amplifier are made utilizing a digital feed-forward correction system. A controlled amount of the output power is coupled to a correction system for processing of phase and amplitude information. The correction system comprises circuitry to compare the detected phase and amplitude with the desired phase and amplitude, respectively, and a digitally programmable phase shifter and attenuator and digital logic circuitry to control the phase shifter and attenuator. The phase and amplitude of subsequent are modified by output signals from the correction system. 11 figs.

  7. Feed-forward digital phase and amplitude correction system

    DOE Patents [OSTI]

    Yu, David U. L. (Rancho Palos Verdes, CA); Conway, Patrick H. (Rancho Palos Verdes, CA)

    1994-01-01

    Phase and amplitude modifications in repeatable RF pulses at the output of a high power pulsed microwave amplifier are made utilizing a digital feed-forward correction system. A controlled amount of the output power is coupled to a correction system for processing of phase and amplitude information. The correction system comprises circuitry to compare the detected phase and amplitude with the desired phase and amplitude, respectively, and a digitally programmable phase shifter and attenuator and digital logic circuitry to control the phase shifter and attenuator. The Phase and amplitude of subsequent are modified by output signals from the correction system.

  8. Global Feed-in Tariffs Project | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View New PagesSustainable UrbanKentucky:BoreOpenGilliamOhio:Change | OpenInformationFeed-in

  9. Global Village Energy Partnership (GVEP) Feed | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA Jump to:ofEniaElectric JumpAtlas forCommunity Tunnel BoringFeed

  10. Institute of Development Studies Feed | Open Energy Information

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    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA JumpDuimenMaking EnergyIndosolarInnovasol JumpProductivityFeed Jump

  11. United Nations Environment Programme Feed | Open Energy Information

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  13. Widget:TwitterFeed-CSC | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJThinWarsaw,What IsLogoCloudTATGallery Jump to:TwitterFeed-CSC Jump

  14. Bangladesh-Feed the Future | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAandAmminex AAustriaBiofuelsOpen Energy Informationclock timeFeed the

  15. Lawrence Berkeley National Laboratory (LBNL) Feed | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History ViewInformationWinds Jump to:Laredo Ridge WindHill JumpLava(LBNL) Feed

  16. Feed-Pump Hydraulic Performance and Design Improvement, Phase I:

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunitiesofExtransScientificEnergy EfficiencyFeed-Pump Hydraulic

  17. Ion beam analyses of radionuclide migration in heterogeneous rocks

    SciTech Connect (OSTI)

    Alonso, Ursula; Missana, Tiziana; Garcia-Gutierrez, Miguel [CIEMAT, Avda. Complutense 40, Madrid 28040 (Spain); Patelli, Alessandro [CIVEN, Via delle Industrie 5, Venezia-Marghera 30175 (Italy); Rigato, Valentino; Ceccato, Daniele [LNL-INFN, Viale dell' Universita 2, Legnaro-Padova 35020 (Italy)

    2013-07-18

    The migration of radionuclides (RN) in the environment is a topic of general interest, for its implications on public health, and it is an issue for the long-term safety studies of deep geological repositories (DGR) for high-level radioactive waste. The role played by colloids on RN migration is also of great concern. Diffusion and sorption are fundamental mechanisms controlling RN migration in rocks and many experimental approaches are applied to determine transport parameters for low sorbing RN in homogeneous rocks. However, it is difficult to obtain relevant data for high sorbing RN or colloids, for which diffusion lengths are extremely short, or within heterogeneous rocks, where transport might be different in different minerals. The ion beam techniques Rutherford Backscattering Spectrometry (RBS) and micro-Particle Induced X-Ray Emission ({mu}PIXE), rarely applied in the field, were selected for their micro-analytical potential to study RN diffusion and surface retention within heterogeneous rocks. Main achievements obtained during last 12 years are highlighted.

  18. Effect of salt concentration on the stability of heterogeneous DNA

    E-Print Network [OSTI]

    Amar Singh; Navin Singh

    2015-09-28

    We study the role of cations on the stability of double stranded DNA (dsDNA) molecules.It is known that the two strands of double stranded DNA(dsDNA) have negative charge due to phosphate group. Cations in the form of salt in the solution, act as shielding agents thereby reducing the repulsion between these strands. We study several heterogeneous DNA molecules. We calculate the phase diagrams for DNA molecules in thermal as well as in force ensembles using Peyrard-Bishop-Dauxois (PBD) model. The dissociation and the stacking energies are the two most important factors that play an important role in the DNA stability. With suitable modifications in the model parameters we investigate the role of cation concentration on the stability of different heterogeneous DNA molecules. The objective of this work is to understand how these cations modify the strength of different pairs or bases along the strand. The phase diagram for the force ensemble case (a dsDNA is pulled from an end) is compared with the experimental results.

  19. Monodisperse Platinum and Rhodium Nanoparticles as Model Heterogeneous Catalysts

    SciTech Connect (OSTI)

    Coble, Inger M

    2008-08-15

    Model heterogeneous catalysts have been synthesized and studied to better understand how the surface structure of noble metal nanoparticles affects catalytic performance. In this project, monodisperse rhodium and platinum nanoparticles of controlled size and shape have been synthesized by solution phase polyol reduction, stabilized by polyvinylpyrrolidone (PVP). Model catalysts have been developed using these nanoparticles by two methods: synthesis of mesoporous silica (SBA-15) in the presence of nanoparticles (nanoparticle encapsulation, NE) to form a composite of metal nanoparticles supported on SBA-15 and by deposition of the particles onto a silicon wafer using Langmuir-Blodgett (LB) monolayer deposition. The particle shapes were analyzed by transmission electron microscopy (TEM) and high resolution TEM (HRTEM) and the sizes were determined by TEM, X-ray diffraction (XRD), and in the case of NE samples, room temperature H2 and CO adsorption isotherms. Catalytic studies were carried out in homebuilt gas-phase reactors. For the nanoparticles supported on SBA-15, the catalysts are in powder form and were studied using the homebuilt systems as plug-flow reactors. In the case of nanoparticles deposited on silicon wafers, the same systems were operated as batch reactors. This dissertation has focused on the synthesis, characterization, and reaction studies of model noble metal heterogeneous catalysts. Careful control of particle size and shape has been accomplished though solution phase synthesis of Pt and Rh nanoparticles in order to elucidate further structure-reactivity relationships in noble metal catalysis.

  20. Static and dynamic heterogeneities in irreversible gels and colloidal gelation

    E-Print Network [OSTI]

    A. Coniglio; T. Abete; A. de Candia; E. Del Gado; A. Fierro

    2006-12-20

    We compare the slow dynamics of irreversible gels, colloidal gels, glasses and spin glasses by analyzing the behavior of the so called non-linear dynamical susceptibility, a quantity usually introduced to quantitatively characterize the dynamical heterogeneities. In glasses this quantity typically grows with the time, reaches a maximum and then decreases at large time, due to the transient nature of dynamical heterogeneities and to the absence of a diverging static correlation length. We have recently shown that in irreversible gels the dynamical susceptibility is instead an increasing function of the time, as in the case of spin glasses, and tends asymptotically to the mean cluster size. On the basis of molecular dynamics simulations, we here show that in colloidal gelation where clusters are not permanent, at very low temperature and volume fractions, i.e. when the lifetime of the bonds is much larger than the structural relaxation time, the non-linear susceptibility has a behavior similar to the one of the irreversible gel, followed, at higher volume fractions, by a crossover towards the behavior of glass forming liquids.

  1. The role of habitat heterogeneity in structuring the community of intertidal free-living marine nematodes

    E-Print Network [OSTI]

    Gingold, Ruth; Mundo-Ocampo, Manuel; Holovachov, Oleksandr; Rocha-Olivares, Axayácatl

    2010-01-01

    heterogeneity hypothesis (HHH), are building blocks ofHuston 1994). Finally, the HHH states that structurally4) in accordance with the HHH, a morphologically heteroge-

  2. SemiStructured Data Extraction from Heterogeneous Sources Xiaoying Gao and Leon Sterling

    E-Print Network [OSTI]

    Gao, Xiaoying "Sharon"

    Semi­Structured Data Extraction from Heterogeneous Sources Xiaoying Gao and Leon Sterling Intelligent Agent Laboratory Department of Computer Science and Software Engineering The University

  3. Embracing diversity : improving performance for parallel storage systems built with heterogeneous disks

    E-Print Network [OSTI]

    Bruno, Gregory DuVall

    2008-01-01

    Figure I.2: Parallel Storage System Architecture FigureHeterogeneous Parallel Storage Systems . . . . . B. Modeldisks on a multimedia storage system with random data

  4. Vertical feed stick wood fuel burning furnace system

    DOE Patents [OSTI]

    Hill, Richard C. (Orono, ME)

    1984-01-01

    A new and improved stove or furnace for efficient combustion of wood fuel including a vertical feed combustion chamber for receiving and supporting wood fuel in a vertical attitude or stack, a major upper portion of the combustion chamber column comprising a water jacket for coupling to a source of water or heat transfer fluid and for convection circulation of the fluid for confining the locus of wood fuel combustion to the bottom of the vertical gravity feed combustion chamber. A flue gas propagation delay channel extending from the laterally directed draft outlet affords delayed travel time in a high temperature environment to assure substantially complete combustion of the gaseous products of wood burning with forced air as an actively induced draft draws the fuel gas and air mixture laterally through the combustion and high temperature zone. Active sources of forced air and induced draft are included, multiple use and circuit couplings for the recovered heat, and construction features in the refractory material substructure and metal component superstructure.

  5. Characteristics of the positive ion source at reduced gas feed

    SciTech Connect (OSTI)

    Sharma, S. K. Bharathi, P.; Prahlad, V.; Patel, P. J.; Choksi, B.; Jana, M. R.; Bansal, L. K.; Qureshi, K.; Sumod, C. B.; Vadher, V.; Thakkar, D.; Gupta, L. N.; Rambabu, S.; Parmar, S.; Contractor, N.; Sahu, A. K.; Pandya, B.; Sridhar, B.; Pandya, S.; Baruah, U. K.

    2014-11-15

    The neutral beam injector of steady state superconducting tokamak (SST1-NBI) at IPR is designed for injecting upto 1.7 MW of neutral beam (Hº, 30–55 keV) power to the tokamak plasma for heating and current drive. Operations of the positive ion source (PINI or Plug-In-Neutral-Injector) of SST1-NBI were carried out on the NBI test stand. The PINI was operated at reduced gas feed rate of 2–3 Torr l/s, without using the high speed cryo pumps. Experiments were conducted to achieve a stable beam extraction by optimizing operational parameters namely, the arc current (120–300 A), acceleration voltage (16–40 kV), and a suitable control sequence. The beam divergence, power density profiles, and species fractions (H{sup +}:H{sub 2}{sup +}:H{sub 3}{sup +}) were measured by using the diagnostics such as thermal calorimetry, infrared thermography, and Doppler shift spectroscopy. The maximum extracted beam current was about 18 A. A further increase of beam current was found to be limited by the amount of gas feed rate to the ion source.

  6. Self-cleaning feed distributing delivery device for glass melters

    DOE Patents [OSTI]

    Mensink, Daniel L. (155 Gatewood Dr., Aiken, SC 29801)

    1992-01-01

    A self cleaning, plug resistant, adjustable parameter feed distributing and delivery apparatus for a glass melter comprising a housing with a passage therethrough for a glass slurry, a cold finger within the passage for creating a dispersion pattern of the slurry, a movable slotted tube for controlling the confluence of air propellant and slurry in the passage, and a plurality of ribs that extend through the slots in the slotted tube to urge the slurry forward if it becomes stuck or resists forward movement. Coolant passages in the housing and the cold finger maintain the slurry temperature below that of the melter plenum. The cold finger is axially movable to adjust the dispersion pattern to the desired consistency. Other design features of size can be applied for use in situations requiring different parameters of pattern, particle size, rate, and feed consistencies. The device utilizes air as both a propellant and a surface cleansing mechanism. Other fluids may be used as propellants where process compatibility requires.

  7. The Effect of Foaming and Silica Dissolution on Melter Feed Rheology during Conversion to Glass

    SciTech Connect (OSTI)

    Marcial, Jose; Chun, Jaehun; Hrma, Pavel R.; Schweiger, Michael J.

    2014-11-23

    As the nuclear waste glass melter feed is converted to molten glass, the feed eventually becomes a continuous glass-forming melt in which dissolving refractory constituents are suspended together with numerous gas bubbles. Knowledge of mechanical properties of the melter feed is crucial for understanding the feed-to-glass conversion as it occurs in the cold cap. We measured the viscosity during heating of the feed and correlated it with the independently determined volume fractions of dissolving quartz particles and the gas phase. The measurement was performed with a rotating spindle rheometer on the melter feed heated at 5 K/min starting at several different temperatures. The effect of quartz particles, gas bubbles, and compositional inhomogeneity on the glass-forming melt viscosity was determined by fitting a linear relationship between log viscosity and volume fractions of suspended phases to data.

  8. Interregional Competition in the U.S. Cattle Feeding Fed-Beef Economy. 

    E-Print Network [OSTI]

    Clary, G.M.; Dietrich, R.A.; Farris, D.E.

    1984-01-01

    fluctuating livestock and feed grain prices, and the actions of concerned consumer groups. These modifica tions stimulate adjustments in location and size of opera- . ns, in marketing strategies, and in patterns of tribution. Cattle feeding is big...-fed-beef economy in 1980 under conditions where total industry costs are minimized. All models in this study reflect optimum commodity flow patterns and shipment levels, optimum regional feeding and slaughtering levels, surplus regional supplies and capacities...

  9. Analysis and optimized design of airlocks for fluidized bed gasifier fuel feed systems 

    E-Print Network [OSTI]

    Nuboer, Benito Frans

    1991-01-01

    influence the total cost of the conversion system. Based on the experience gained in the design and operation of five feeding systems for gasifiers, Miles concluded that three individual operations are required: a) introduction of the feed stock into a...ANALYSIS AND OPTIMIZED DESIGN OF AIRLOCKS FOR FLUIDIZED BED GASIFIER FUEL FEED SYSTEMS A Thesis by BENITO FRANS NUBOER Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements...

  10. Molecular-Level Design of Heterogeneous Chiral Catalysis

    SciTech Connect (OSTI)

    Francisco Zaera

    2012-03-21

    The following is a proposal to continue our multi-institutional research on heterogeneous chiral catalysis. Our team combines the use of surface-sensitive analytical techniques for the characterization of model systems with quantum and statistical mechanical calculations to interpret experimental data and guide the design of future research. Our investigation focuses on the interrelation among the three main mechanisms by which enantioselectivity can be bestowed to heterogeneous catalysts, namely: (1) by templating chirality via the adsorption of chiral supramolecular assemblies, (2) by using chiral modifiers capable of forming chiral complexes with the reactant and force enantioselective surface reactions, and (3) by forming naturally chiral surfaces using imprinting chiral agents. Individually, the members of our team are leaders in these various aspects of chiral catalysis, but the present program provides the vehicle to generate and exploit the synergies necessary to address the problem in a comprehensive manner. Our initial work has advanced the methodology needed for these studies, including an enantioselective titration procedure to identify surface chiral sites, infrared spectroscopy in situ at the interface between gases or liquids and solids to mimic realistic catalytic conditions, and DFT and Monte Carlo algorithms to simulate and understand chirality on surfaces. The next step, to be funded by the monies requested in this proposal, is to apply those methods to specific problems in chiral catalysis, including the identification of the requirements for the formation of supramolecular surface structures with enantioselective behavior, the search for better molecules to probe the chiral nature of the modified surfaces, the exploration of the transition from supramolecular to one-to-one chiral modification, the correlation of the adsorption characteristics of one-to-one chiral modifiers with their physical properties, in particular with their configuration, and the development of ways to imprint chiral centers on achiral solid surfaces. Chiral catalysis is not only a problem of great importance in its own right, but also the ultimate test of how to control selectivity in catalysis. The time is ripe for fundamental work in heterogeneous chiral catalysis to provide the U.S. with a leadership role in developing the next generation of catalytic processes for medicinal and agrochemical manufacturing. Our team provides the required expertise for a synergistic and comprehensive integration of physical and chemical experimentation with solid state and molecular reactivity theories to solve this problem.

  11. Modelling long-distance seed dispersal in heterogeneous landscapes.

    SciTech Connect (OSTI)

    Levey, Douglas, J.; Tewlsbury, Joshua, J.; Bolker, Benjamin, M.

    2008-01-01

    1. Long-distance seed dispersal is difficult to measure, yet key to understanding plant population dynamics and community composition. 2. We used a spatially explicit model to predict the distribution of seeds dispersed long distances by birds into habitat patches of different shapes. All patches were the same type of habitat and size, but varied in shape. They occurred in eight experimental landscapes, each with five patches of four different shapes, 150 m apart in a matrix of mature forest. The model was parameterized with smallscale movement data collected from field observations of birds. In a previous study we validated the model by testing its predictions against observed patterns of seed dispersal in real landscapes with the same types and spatial configuration of patches as in the model. 3. Here we apply the model more broadly, examining how patch shape influences the probability of seed deposition by birds into patches, how dispersal kernels (distributions of dispersal distances) vary with patch shape and starting location, and how movement of seeds between patches is affected by patch shape. 4. The model predicts that patches with corridors or other narrow extensions receive higher numbers of seeds than patches without corridors or extensions. This pattern is explained by edgefollowing behaviour of birds. Dispersal distances are generally shorter in heterogeneous landscapes (containing patchy habitat) than in homogeneous landscapes, suggesting that patches divert the movement of seed dispersers, ‘holding’ them long enough to increase the probability of seed defecation in the patches. Dispersal kernels for seeds in homogeneous landscapes were smooth, whereas those in heterogenous landscapes were irregular. In both cases, long-distance (> 150 m) dispersal was surprisingly common, usually comprising approximately 50% of all dispersal events. 5. Synthesis . Landscape heterogeneity has a large influence on patterns of long-distance seed dispersal. Our results suggest that long-distance dispersal events can be predicted using spatially explicit modelling to scale-up local movements, placing them in a landscape context. Similar techniques are commonly used by landscape ecologists to model other types of movement; they offer much promise to the study of seed dispersal.

  12. Large-Scale Production of Marine Microalgae for Fuel and Feeds

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

    Review Large-Scale Production of Marine Microalgae for Fuel and Feeds March 24, 2015 Algae Platform Review Mark Huntley Cornell Marine Algal Biofuels Consortium This...

  13. The Effect of Foaming and Silica Dissolution on Melter Feed Rheology...

    Office of Scientific and Technical Information (OSTI)

    dissolving refractory constituents are suspended together with numerous gas bubbles. Knowledge of mechanical properties of the melter feed is crucial for understanding the...

  14. Historical Transformation of Functional Design: Evolutionary Morphology of Feeding Mechanisms in Loricarioid Catfishes

    E-Print Network [OSTI]

    Lauder, George V.

    Historical Transformation of Functional Design: Evolutionary Morphology of Feeding Mechanisms dedicated to and preserving a digital archive of scholarly journals. For more information regarding JSTOR

  15. POLYMER ELECTROLYTE MEMBRANE ELECTROLYZER OPERATION WITH VARYING INLET WATER FEED CONFIGURATIONS

    SciTech Connect (OSTI)

    Fox, E

    2008-09-12

    Proton Exchange Membrane (PEM) electrolysis is a potential alternative technology to crack water in specialty applications where a dry gas stream is needed, such as isotope production. One design proposal is to feed the cathode of the electrolyzer with vapor phase water. This feed configuration would allow isotopic water to be isolated on the cathode side of the electrolyzer and the isotope recovery system could be operated in a closed loop. Tests were performed to characterize the difference in the current-voltage behavior between a PEM electrolyzer operated with a cathode water vapor feed and with an anode liquid water feed. The cathode water vapor feed cell had a maximum limiting current density of 100 mA/cm2 at 70 C compared to a current density of 800 mA/cm2 for the anode liquid feed cell at 70 C. The limiting current densities for the cathode water vapor feed cell were approximately 3 times lower than predicted by a water mass transfer model. It is estimated that a cathode water vapor feed electrolyzer system will need to be between 8-14 times larger in active area or number of cells than an anode liquid feed system.

  16. Alternatives Generation and Analysis for Phase 1 High Level Waste Feed Tanks Selection

    SciTech Connect (OSTI)

    CRAWFORD, T.W.

    1999-08-16

    A recent revision of the US. Department of Energy privatization contract for the immobilization of high-level waste (HLW) at Hanford necessitates the investigation of alternative waste feed sources to meet contractual feed requirements. This analysis identifies wastes to be considered as HLW feeds and develops and conducts alternative analyses to comply with established criteria. A total of 12,426 cases involving 72 waste streams are evaluated and ranked in three cost-based alternative models. Additional programmatic criteria are assessed against leading alternative options to yield an optimum blended waste feed stream.

  17. Air feed tube support system for a solid oxide fuel cell generator

    DOE Patents [OSTI]

    Doshi, Vinod B. (Monroeville, PA); Ruka, Roswell J. (Pittsburgh, PA); Hager, Charles A. (Zelienople, PA)

    2002-01-01

    A solid oxide fuel cell generator (12), containing tubular fuel cells (36) with interior air electrodes (18), where a supporting member (82) containing a plurality of holes (26) supports oxidant feed tubes (51), which pass from an oxidant plenum (52") into the center of the fuel cells, through the holes (26) in the supporting member (82), where a compliant gasket (86) around the top of the oxidant feed tubes and on top (28) of the supporting member (82) helps support the oxidant feed tubes and center them within the fuel cells, and loosen the tolerance for centering the air feed tubes.

  18. Revealing spatially heterogeneous relaxation in a model nanocomposite

    E-Print Network [OSTI]

    Cheng, Shiwang; Carrillo, Jan-Michael Y; Bocharova, Vera; Sumpter, Bobby G; Schweizer, Kenneth S; Sokolov, Alexei P

    2015-01-01

    The detailed nature of spatially heterogeneous dynamics of glycerol-silica nanocomposites is unraveled by combining dielectric spectroscopy with atomistic simulation and statistical mechanical theory. Analysis of the spatial mobility gradient shows no 'glassy' layer, but the alpha relaxation time near the nanoparticle grows with cooling faster than the alpha relaxation time in the bulk, and is ~ 20 times longer at low temperatures. The interfacial layer thickness increases from ~ 1.8 nm at higher temperatures to ~ 3.5 nm upon cooling to near Tg. A real space microscopic description of the mobility gradient is constructed by synergistically combining high temperature atomistic simulation with theory. Our analysis suggests that the interfacial slowing down arises mainly due to an increase of the local cage scale barrier for activated hopping induced by enhanced packing and densification near the nanoparticle surface. The theory is employed to predict how local surface densification can be manipulated to control...

  19. Interface limited growth of heterogeneously nucleated ice in supercooled water

    E-Print Network [OSTI]

    Razvan A. Nistor; Thomas E. Markland; B. J. Berne

    2013-12-30

    Heterogeneous ice growth exhibits a maximum in freezing rate arising from the competition between kinetics and the thermodynamic driving force between the solid and liquid states. Here, we use molecular dynamics simulations to elucidate the atomistic details of this competition, focusing on water properties in the interfacial region along the secondary prismatic direction. The crystal growth velocity is maximized when the efficiency of converting interfacial water molecules to ice, collectively known as the attachment kinetics, is greatest. We find water molecules that contact the intermediate ice layer in concave regions along the atomistically roughened surface are more likely to freeze directly. The increased roughening of the solid surface at large undercoolings consequently plays an important limiting role on the rate of ice growth, as water molecules are unable to integrate into increasingly deeper surface pockets. These results provide insights into the molecular mechanisms for self-assembly of solid phases that are important in many biological and atmospheric processes.

  20. Cryogenic homogenization and sampling of heterogeneous multi-phase feedstock

    DOE Patents [OSTI]

    Doyle, Glenn Michael (Lakewood, CO); Ideker, Virgene Linda (Arvada, CO); Siegwarth, James David (Boulder, CO)

    2002-01-01

    An apparatus and process for producing a homogeneous analytical sample from a heterogenous feedstock by: providing the mixed feedstock, reducing the temperature of the feedstock to a temperature below a critical temperature, reducing the size of the feedstock components, blending the reduced size feedstock to form a homogeneous mixture; and obtaining a representative sample of the homogeneous mixture. The size reduction and blending steps are performed at temperatures below the critical temperature in order to retain organic compounds in the form of solvents, oils, or liquids that may be adsorbed onto or absorbed into the solid components of the mixture, while also improving the efficiency of the size reduction. Preferably, the critical temperature is less than 77 K (-196.degree. C.). Further, with the process of this invention the representative sample may be maintained below the critical temperature until being analyzed.

  1. Heterogeneous electrocatalysis in porous cathodes of solid oxide fuel cells

    E-Print Network [OSTI]

    Fu, Y; Bertei, A; Qi, C; Mohanram, A; Pietras, J D; Bazant, M Z

    2014-01-01

    A general physics-based model is developed for heterogeneous electrocatalysis in porous electrodes and used to predict and interpret the impedance of solid oxide fuel cells. This model describes the coupled processes of oxygen gas dissociative adsorption and surface diffusion of the oxygen intermediate to the triple phase boundary, where charge transfer occurs. The model accurately captures the Gerischer-like frequency dependence and the oxygen partial pressure dependence of the impedance of symmetric cathode cells. Digital image analysis of the microstructure of the cathode functional layer in four different cells directly confirms the predicted connection between geometrical properties and the impedance response. As in classical catalysis, the electrocatalytic activity is controlled by an effective Thiele modulus, which is the ratio of the surface diffusion length (mean distance from an adsorption site to the triple phase boundary) to the surface boundary layer length (square root of surface diffusivity div...

  2. Linkage heterogeneity among 59 Dutch hereditary breast cancer families

    SciTech Connect (OSTI)

    Cornelis, R.S.; Vliet, M. van; Leeuwen, I. van

    1994-09-01

    We have investigated 59 Dutch kindreds with at least three first-degree relatives with breast and/or ovarian cancer for linkage to BRCA1 on 17q12-q21, using at least 4 microsatellite markers flanking BRCA1 on either side. Assuming no heterogeneity, the overall multipoint lod score in this group of families was -7.59. A marked clustering of lod scores >0.5 was observed among the 13 families with a mean age of onset lower than 45 (total lod score: +3.36). Among the 8 kindreds with a mean age of onset lower than 45 and {ge}3 cases diagnosed under 45, the lod score was +4.43. Interestingly, most of the evidence against linkage was found in 17 families with a mean age of onset between 45 and 54 (total lod score of -8.72). It was estimated that 28% of the breast-only families might be caused by BRCA1. Over the 16 breast-ovarian cancer families a lod score of -3.78 was obtained under homogeneity. The highest lod score was +0.57, assuming heterogeneity with 33% of the families being linked to BRCA1. One family gave a multipoint lod score of -2.01 and thereby satisfies the conventional criterion of an unlinked family. Our results support the conclusions from earlier work by others, namely that BRCA1 predisposes particularly to early-onset breast cancer. The proportion of breast-ovarian cancer families we found linked to BRCA1 is much lower than that found by the Breast Cancer Linkage Consortium. This might be caused by the single unlinked family against an insufficient number of families able to give conclusive positive lod scores.

  3. United Biorefineries Corp UBC | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al.,Turin, New York: EnergyU.S.UnifinPark,Unitech Printed

  4. Investigation of thermochemical biorefinery sizing and environmental...

    Office of Scientific and Technical Information (OSTI)

    biomass annually, enough to displace approximately 30% of the country's current petroleum consumption. A portion of these resources are inaccessible at current cost targets with...

  5. On the systematic synthesis of sustainable biorefineries

    E-Print Network [OSTI]

    Grossmann, Ignacio E.

    on the actual sustainability of the production process of biofuels mainly due to the consumption of energy and water. While energy consumption has always been a top priority in any production process as a result of its direct impact on the production cost, water consumption has also become a major concern due to its

  6. Systematic synthesis of sustainable biorefineries: A review

    E-Print Network [OSTI]

    Grossmann, Ignacio E.

    on the actual sustainability of the production process of biofuels mainly due to the consumption of energy and water. While energy consumption has always been a top priority in any production process as a result of its direct impact on the production cost, water consumption has also become a major concern due to its

  7. Retrofitting analysis of integrated bio-refineries 

    E-Print Network [OSTI]

    Cormier, Benjamin R.

    2007-04-25

    Industrial processes are currently facing many challenges. Market conditions are forcing changes in quantities and qualities of various products. With the qualitative and quantitative changes, production technologies and feedstocks must be re.... The different types of feedstock are shown in Table 2.1. Herbaceous and woody biomass are composed of carbohydrate polymers such as cellulose and hemicellulose, lignin and small parts of acids, salts and minerals. The cellulose and hemicellulose compose about...

  8. A Second-Generation Dry Mill Biorefinery

    Broader source: Energy.gov [DOE]

    This fact sheet summarizes a U.S. Department of Energy Biomass Program research and development project.

  9. Range Fuels Biorefinery Groundbreaking | Department of Energy

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

    Twenty in Ten initiative is expected to generate a reduction in the projected demand for gasoline by 20 percent over the next 10 years. Under Twenty in Ten, automobile...

  10. Southern Pine Based on Biorefinery Center

    SciTech Connect (OSTI)

    Ragauskas, Arthur J; Singh, Preet

    2014-01-10

    This program seeks to develop an integrated southern pine wood to biofuels/biomaterials processing facility on the Recipient’s campus, that will test advanced integrated wood processing technologies at the laboratory scale, including: • The generation of the bioethanol from pines residues and hemicelluloses extracted from pine woodchips; • The conversion of extracted woodchips to linerboard and bleach grade pulps; and • The efficient conversion of pine residues, bark and kraft cooking liquor into a useful pyrolysis oil.

  11. Production of levulinic acid in urban biorefineries

    E-Print Network [OSTI]

    Sheldon-Coulson, Garth Alexander

    2011-01-01

    The energy security of the United States depends, most experts agree, on the development of substitute sources of energy for the transportation sector, which accounts for over 93% of the nation's petroleum consumption. ...

  12. Process Synthesis and Optimization of Biorefinery Configurations 

    E-Print Network [OSTI]

    Pham, Viet

    2012-10-19

    SS Stainless steel TCI Total Capital Investment VS Volatile Solid VSLR Volatile Solid Loading Rate WCI Working Capital Investment Variables content component flow rate of feedstock d design variable ? fractional variation....5.2 Vapor compression system ............................................ 84 4.5.3 Sources of hydrogen ...................................................... 90 4.5.4 Other sensitivity analyses .............................................. 91 4...

  13. NewPage Demonstration-Scale Biorefinery

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

    in Wisconsin (NewPage Corporation in Wisconsin Rapids and Flambeau River Papers, LLC in Park Falls). NewPage and Flambeau River have demonstrated successful collaboration on...

  14. Flambeau River Biofuels Demonstration-Scale Biorefinery

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

    in Wisconsin (NewPage Corporation in Wisconsin Rapids and Flambeau River Papers, LLC in Park Falls). NewPage and Flambeau River have demonstrated successful collaboration on...

  15. USDA - Biorefinery Assistance Program | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-Sessions | Department ofVP of TransmissionIT Tools JOHN MAKEPEACE Sr.

  16. NREL: Biomass Research - What Is a Biorefinery?

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on771/6/14 Contact:News ReleasesChemicalPilot and Users FacilityWhat

  17. NREL: Sustainable NREL - Integrated Biorefinery Research Facility

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines lightGeospatial ToolkitSMARTS - Simple ModelCafeteria A photoGreenhouse

  18. Myriant Succinic Acid BioRefinery

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURING OFFICESpecialAPPENDIX FOrigin of Contamination in Many

  19. Myriant Succinic Acid Biorefinery | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURING OFFICESpecialAPPENDIX FOrigin of Contamination in ManyMyriant Succinic Acid

  20. Albemarle Biorefinery Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand DaltonSolarOpen5 -Telephone Co Jump to:Elec Coop,Wyoming:Ohio:

  1. Investigation of thermochemical biorefinery sizing and environmental

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(Journalspectroscopy of aerosols in(Journal Article) |(Conference) |

  2. Integrated Biorefineries:Biofuels, Biopower, and Bioproducts

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURING OFFICE INDUSTRIAL TECHNICAL8-02 InspectionCONFERENCE of STATE

  3. Economy Through Product Diversity: Integrated Biorefineries

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based|DepartmentStatementofApril 25,EV Everywhere|Muscle CarEnergy Extendsof

  4. Range Fuels Biorefinery Groundbreaking | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested PartiesBuildingBudget ||Department ofRequest7of 9 RadiologicalRainRancherRange

  5. Integrated Biorefinery Process | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergy HeadquartersFuelBConservationEnergy5975-01 REPORT ONInstitutionalIntegrated

  6. Project LIBERTY Biorefinery Starts Cellulosic Ethanol Production |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann JacksonDepartment ofOffice|inWest KentuckyRestorationThat SaveRM ExitEnergyDraft

  7. Biochemical Conversion - Biorefinery Integration | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram:Y-12Power, IncBio Centers Announcement at the National PressNews

  8. Biorefinery Grant Announcement | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram:Y-12Power, IncBio Centers Announcementand The

  9. Algal Integrated Biorefineries | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram:Y-12 Beta-3AUDITLeslieAlgae Biomass Summit Algae Biomass

  10. Development of Integrated Biorefineries | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels DataEnergy Webinar:IAbout Us|of EnergySmall

  11. Modeling and Control of Heterogeneous Non-Holonomic Input-Constrained Multiagent Systems

    E-Print Network [OSTI]

    Loizou, Savvas G.

    of multiple-aircraft systems modeled as hybrid systems. With the advent of powerful formal verification toolsModeling and Control of Heterogeneous Non-Holonomic Input-Constrained Multiagent Systems Apollon S of the paper, we develop a modeling framework for heterogeneous multi-agent systems that is based on timed

  12. Generic Library Extension in a Heterogeneous Environment Cosmin Oancea Stephen M. Watt

    E-Print Network [OSTI]

    Watt, Stephen M.

    Generic Library Extension in a Heterogeneous Environment Cosmin Oancea Stephen M. Watt Department,watt}@csd.uwo.ca Abstract We examine what is necessary to allow generic libraries to be used naturally in a heterogeneous environment. Our approach is to treat a library as a software component and to view the problem as one

  13. DELAR: Device/Energy/Load Aware Relaying in Heterogenous Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Zhang, Yanchao

    - newable energy sources. In DELAR the heterogeneity of nodal energy capabilities or device types, nodalDELAR: Device/Energy/Load Aware Relaying in Heterogenous Wireless Ad Hoc Networks Wei Liu Energy conservation is of great importance for mobile ad hoc networks in which most nodes are equipped

  14. Practical tools for survival analysis with heterogeneity-induced competing risks

    E-Print Network [OSTI]

    Applebaum, David

    Practical tools for survival analysis with heterogeneity-induced competing risks J. van Baardewijka-intuitive inferences. Keywords: survival analysis; heterogeneity; competing risks 1 #12;Contents 1 Introduction 3 2 to the survival analysis literature we refer to the textbooks [1, 2, 3, 4]. The competing risk problem

  15. ELSEVIER Tectonophysics 279 (1997) 327350 Continental-scale rheological heterogeneities and complex intraplate

    E-Print Network [OSTI]

    Tommasi, Andrea

    1997-01-01

    displayed different geotherms and lithospheric thicknesses, and therefore contrasted rheological behaviours these heterogeneities may affect strain localization and the distribution of deformation regimes and vertical strain in vertical and/or rotational deformation. Such a heterogeneous strain distribution may induce contrasted

  16. Mapping pipeline skeletons onto heterogeneous platforms Anne Benoit and Yves Robert

    E-Print Network [OSTI]

    Benoit, Anne

    Mapping pipeline skeletons onto heterogeneous platforms Anne Benoit and Yves Robert LIP, ENS Lyon mapping of the application. In this paper, we discuss the mapping of pipeline skeletons onto different, Fully Heterogeneous platforms. We assume that a pipeline stage must be mapped on a single processor

  17. Pointer Warping in Heterogeneous Multi-Monitor Environments Hrvoje Benko Steven Feiner

    E-Print Network [OSTI]

    Benko, Hrvoje

    Pointer Warping in Heterogeneous Multi-Monitor Environments Hrvoje Benko Steven Feiner Department and visual size alone. For mouse operation in a highly heterogeneous multi-monitor environment, all our in a homogeneous multi-monitor environment and showed significant improvements when traversing two or more monitor

  18. Temperature-Dependent Heterogeneous Efflorescence of Mixed Ammonium Sulfate/Calcium Carbonate Particles

    E-Print Network [OSTI]

    Vironmental Sciences Department, BrookhaVen National Laboratory, Upton, New York 11973 ReceiVed: July 5, 2000; In Final are analyzed using classical nucleation theory to derive the free-energy barrier to nucleation, the size heterogeneous nuclei. Heterogeneous crystallization represents an alternative mechanism for phase transitions

  19. Utilizing interfaces: One-step forward for rational design of heterogeneous catalysts

    SciTech Connect (OSTI)

    Kim H. Y.

    2013-06-20

    As far as heterogeneous catalysts are a composite material, physicochemical properties of the interfaces between individual components should be extensively studied for rational design of catalysts with desired properties. Here, I will present recent computational achievements in following three heterogeneous catalysts where the interface between composing materials plays a critical role

  20. Soil Biology & Biochemistry 39 (2007) 21382149 Heterogeneity of soil nutrients and subsurface biota

    E-Print Network [OSTI]

    Neher, Deborah A.

    2007-01-01

    Author's personal copy Soil Biology & Biochemistry 39 (2007) 2138­2149 Heterogeneity of soil Laboratory, 999-W, Aiken, SC 29808, USA f Department of Plant & Soil Science, University of Vermont, Hills to have a highly heterogeneous distribution of nutrients and soil biota, with greater concentrations