National Library of Energy BETA

Sample records for friendly synthetic approaches

  1. Innovative regulatory approach for synthetic-based muds.

    SciTech Connect (OSTI)

    Veil, J. A.

    1998-10-22

    The oil and gas industry has historically used water-based muds (WBMs) and oil-based muds (OBMs) in offshore drilling operations. WBMs are less expensive and are widely used. Both the WBMs and the associated drill cuttings maybe discharged from the platform to the sea provided that U.S. Environmental Protection Agency (EPA) discharge limitations are met. In some wells, however, difficult drilling conditions may force a switch from a WBM to an OBM. Neither the OBM nor the associated drill cuttings may be discharged. The OBM is hauled to shore, where it is processed for reuse, while the associated cuttings are injected in a disposal well at the platform or hauled to shore to a disposal facility. Both of these options are expensive. Synthetic-based muds (SBMs) are drilling fluids that use synthetic organic chemicals as base fluids. SBMs were developed to replace OBMs in difficult drilling situations. SBMs are more expensive than OBMs; however, they have superior environmental properties that may permit the cuttings to be discharged on-site. Like OBMs, SBMs are hauled ashore for processing and reuse after the well is drilled. The existing national effluent limitations guidelines (ELGs) for the offshore industry do not include requirements for SBM-cuttings since SBMs were not commonly in use at the time the ELGs were adopted. In late 1997, EPA announced that it would modify the offshore ELGs to include requirements for discharges of cuttings drilled with SBMs. For the first time in the history of the ELG program, EPA is following an innovative presumptive rulemaking process that will lead to development of draft regulations in one year rather than the 4- to 6-year period usually needed. With direction from the federal government to stakeholders concerning information needs for the regulatory development the industry has established several working groups to collect new scientific information on SBMs. This paper describes the presumptive rulemaking process and summarizes the findings of the work groups to date.

  2. Donna Friend | Department of Energy

    Office of Environmental Management (EM)

    Donna Friend Donna Friend Phone 202-586-5880 E-mail donna.friend@hq.doe.dov Last Name Friend First Name Donna Title HUMAN RESOURCES SPECIALIST

  3. Synthetic Fuel

    ScienceCinema (OSTI)

    Idaho National Laboratory - Steve Herring, Jim O'Brien, Carl Stoots

    2010-01-08

    Two global energy priorities today are finding environmentally friendly alternatives to fossil fuels, and reducing greenhouse gass Two global energy priorities today are finding environmentally friendly alternatives to fossil fuels, and reducing greenhous

  4. Summary report : direct approaches for recycling carbon dioxide into synthetic fuel.

    SciTech Connect (OSTI)

    Allendorf, Mark D.; Ambrosini, Andrea; Diver, Richard B., Jr.; Siegel, Nathan Phillip; Miller, James Edward; Gelbard, Fred; Evans, Lindsey R.

    2009-01-01

    The consumption of petroleum by the transportation sector in the United States is roughly equivalent to petroleum imports into the country, which have totaled over 12 million barrels a day every year since 2004. This reliance on foreign oil is a strategic vulnerability for the economy and national security. Further, the effect of unmitigated CO{sub 2} releases on the global climate is a growing concern both here and abroad. Independence from problematic oil producers can be achieved to a great degree through the utilization of non-conventional hydrocarbon resources such as coal, oil-shale and tarsands. However, tapping into and converting these resources into liquid fuels exacerbates green house gas (GHG) emissions as they are carbon rich, but hydrogen deficient. Revolutionary thinking about energy and fuels must be adopted. We must recognize that hydrocarbon fuels are ideal energy carriers, but not primary energy sources. The energy stored in a chemical fuel is released for utilization by oxidation. In the case of hydrogen fuel the chemical product is water; in the case of a hydrocarbon fuel, water and carbon dioxide are produced. The hydrogen economy envisions a cycle in which H{sub 2}O is re-energized by splitting water into H{sub 2} and O{sub 2}, by electrolysis for example. We envision a hydrocarbon analogy in which both carbon dioxide and water are re-energized through the application of a persistent energy source (e.g. solar or nuclear). This is of course essentially what the process of photosynthesis accomplishes, albeit with a relatively low sunlight-to-hydrocarbon efficiency. The goal of this project then was the creation of a direct and efficient process for the solar or nuclear driven thermochemical conversion of CO{sub 2} to CO (and O{sub 2}), one of the basic building blocks of synthetic fuels. This process would potentially provide the basis for an alternate hydrocarbon economy that is carbon neutral, provides a pathway to energy independence, and is compatible with much of the existing fuel infrastructure.

  5. ARM - Meet Our Friends

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

    Friends Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans Meet Our Friends Who's PI Prairie Dog PI Prairie Dog is a scientist known as a "principal investigator." He lives in the western United States in a large prairie dog colony called a town or village. An undisturbed colony can

  6. Cyber Friendly Fire

    SciTech Connect (OSTI)

    Greitzer, Frank L.; Carroll, Thomas E.; Roberts, Adam D.

    2011-09-01

    Cyber friendly fire (FF) is a new concept that has been brought to the attention of Department of Defense (DoD) stakeholders through two workshops that were planned and conducted by the Air Force Research Laboratory (AFRL) and research conducted for AFRL by the Pacific Northwest National Laboratory. With this previous work in mind, we offer a definition of cyber FF as intentional offensive or defensive cyber/electronic actions intended to protect cyber systems against enemy forces or to attack enemy cyber systems, which unintentionally harms the mission effectiveness of friendly or neutral forces. Just as with combat friendly fire, a fundamental need in avoiding cyber FF is to maintain situation awareness (SA). We suggest that cyber SA concerns knowledge of a system's topology (connectedness and relationships of the nodes in a system), and critical knowledge elements such as the characteristics and vulnerabilities of the components that comprise the system (and that populate the nodes), the nature of the activities or work performed, and the available defensive (and offensive) countermeasures that may be applied to thwart network attacks. A training implication is to raise awareness and understanding of these critical knowledge units; an approach to decision aids and/or visualizations is to focus on supporting these critical knowledge units. To study cyber FF, we developed an unclassified security test range comprising a combination of virtual and physical devices that present a closed network for testing, simulation, and evaluation. This network offers services found on a production network without the associated costs of a real production network. Containing enough detail to appear realistic, this virtual and physical environment can be customized to represent different configurations. For our purposes, the test range was configured to appear as an Internet-connected Managed Service Provider (MSP) offering specialized web applications to the general public. The network is essentially divided into a production component that hosts the web and network services, and a user component that hosts thirty employee workstations and other end devices. The organization's network is separated from the Internet by a Cisco ASA network security device that both firewalls and detects intrusions. Business sensitive information is stored in various servers. This includes data comprising thousands of internal documents, such as finance and technical designs, email messages for the organization's employees including the CEO, CFO, and CIO, the organization's source code, and Personally Identifiable client data. Release of any of this information to unauthorized parties would have a significant, detrimental impact on the organization's reputation, which would harm earnings. The valuable information stored in these servers pose obvious points of interest for an adversary. We constructed several scenarios around this environment to support studies in cyber SA and cyber FF that may be run in the test range. We describe mitigation strategies to combat cyber FF including both training concepts and suggestions for decision aids and visualization approaches. Finally, we discuss possible future research directions.

  7. Friends Solar | Open Energy Information

    Open Energy Info (EERE)

    Friends Solar Name: Friends Solar Place: Kahuku, Hawaii Sector: Renewable Energy Product: Solar Energy Number of Employees: 11-50 Year Founded: 1988 Phone Number: 8086839550...

  8. Synthetic fuels

    SciTech Connect (OSTI)

    Not Available

    1989-01-01

    In January 1982, the Department of Energy guaranteed a loan for the construction and startup of the Great Plains project. On August 1, 1985, the partnership defaulted on the $1.54 billion loan, and DOE acquired control of, and then title to, the project. DOE continued to operate the plant, through the ANG Coal Gasification Company, and sell synthetic fuel. The DOE's ownership and divestiture of the plant is discussed.

  9. synthetic chemistry

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

    synthetic chemistry - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced

  10. Radar Friendly Blades

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

    Radar Friendly Blades - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced

  11. Friendly Skies Waste Management

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

    Friendly Skies Waste Management AGOS keeps watch above the NNSS. Hyde Park goes undefeated en route to Middle School title. Nevada attends waste management symposium in Arizona. See page 8. See page 4. See page 6. RSL Goes Behind-the- Scenes During the 57th Presidential Inauguration An estimated one million people flooded the nation's capital on Jan. 21, 2013, to witness the 57th Presidential Inauguration and the historic second inauguration of Barack Obama. The event was designated as a

  12. Pedestrian Friendly Outdoor Lighting

    SciTech Connect (OSTI)

    Miller, Naomi J.; Koltai, Rita; McGowan, Terry

    2013-12-31

    This GATEWAY report discusses the problems of pedestrian lighting that occur with all technologies with a focus on the unique optical options and opportunities offered by LEDs through the findings from two pedestrian-focused projects, one at Stanford University in California, and one at the Chautauqua Institution in upstate New York. Incorporating user feedback this report reviews the tradeoffs that must be weighed among visual comfort, color, visibility, efficacy and other factors to stimulate discussion among specifiers, users, energy specialists, and in industry in hopes that new approaches, metrics, and standards can be developed to support pedestrian-focused communities, while reducing energy use.

  13. Cyber Friendly Fire: Research Challenges for Security Informatics

    SciTech Connect (OSTI)

    Greitzer, Frank L.; Carroll, Thomas E.; Roberts, Adam D.

    2013-06-06

    This paper addresses cognitive implications and research needs surrounding the problem of cyber friendly fire (FF). We define cyber FF as intentional offensive or defensive cyber/electronic actions intended to protect cyber systems against enemy forces or to attack enemy cyber systems, which unintention-ally harms the mission effectiveness of friendly or neutral forces. Just as with combat friendly fire, maintaining situation awareness (SA) is paramount to avoiding cyber FF incidents. Cyber SA concerns knowledge of a system’s topology (connectedness and relationships of the nodes in a system), and critical knowledge elements such as the characteristics and vulnerabilities of the components that comprise the system and its nodes, the nature of the activities or work performed, and the available defensive and offensive countermeasures that may be applied to thwart network attacks. Mitigation strategies to combat cyber FF— including both training concepts and suggestions for decision aids and visualization approaches—are discussed.

  14. Synthetic Information and Decision Informatics for Complex Systems...

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

    Dynamics & Simulation Science Laboratory SALISHAN 2010 Tackling Big Data: HPC Approaches to Informatics Synthetic Information and Decision Informatics for Complex Socially-Coupled...

  15. Synthetic and Mechanistic Chemistry

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

    Synthetic and Mechanistic Chemistry Synthetic and Mechanistic Chemistry Synthetic and mechanistic chemical sciences play an important role in Lab missions dedicated to energy security, emerging challenges, global security, and core weapons missions. Get Expertise Dave Thorn Chemistry Program Manager Email Josh Smith Chemistry Communications Email "Research into alternative forms of energy, of which biofuels is a key component, is one of the major national security imperatives of this

  16. Making Hydropower More Eco-Friendly | Department of Energy

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

    Hydropower More Eco-Friendly Making Hydropower More Eco-Friendly October 22, 2014 - 4:06pm Addthis Making Hydropower More Eco-Friendly Making Hydropower More Eco-Friendly Making Hydropower More Eco-Friendly Making Hydropower More Eco-Friendly Making Hydropower More Eco-Friendly Making Hydropower More Eco-Friendly Hoyt Battey Market Acceleration and Deployment Program Manager, Wind and Water Power Technologies Office MORE RESOURCES Learn more about the Sensor Fish project Subscribe to Water Power

  17. A one-pot synthetic approach to prepare palladium nanoparticles embedded hierarchically porous TiO{sub 2} hollow spheres for hydrogen peroxide sensing

    SciTech Connect (OSTI)

    Kong Lirong; Lu Xiaofeng; Bian Xiujie; Zhang Wanjin; Wang Ce

    2010-10-15

    A simple one-step method to fabricate hierarchically porous TiO{sub 2}/Pd composite hollow spheres without any template was developed by using solvothermal treatment. Pd nanoparticles (2-5 nm) were well dispersed in the mesopores of the TiO{sub 2} hollow spheres via in-situ reduction. In our experiment, polyvinylpyrrolidone played an important role in the synthetic process as the reducing agent and the connective material between TiO{sub 2} and Pd nanoparticles. HF species generated from solvothermal reaction leaded to the formation of TiO{sub 2} hollow spheres and Ostwald ripening was another main factor that affected the size and structure of the hollow spheres. The as-prepared TiO{sub 2}/Pd composite hollow spheres exhibited high electrocatalytic activity towards the reduction of H{sub 2}O{sub 2}. The sensitivity was about 226.72 {mu}A mM{sup -1} cm{sup -2} with a detection limit of 3.81 {mu}M at a signal-to-noise ratio of 3. These results made the hierarchically porous TiO{sub 2}/Pd composite a promising platform for fabricating new nonenzymic biosensors. - Graphical Abstract: A new one-step solvothermal method was developed to prepare Pd nanoparticles embedded hierarchically porous TiO{sub 2} hollow spheres. Due to its unique nanostructure, the prepared TiO{sub 2}/Pd modified GC electrode exhibit a high sensitivity (226.72 {mu}A mM{sup -1} cm{sup -2}), a relatively low reduction potential (-0.2 V), a fast response time (<3 s) and a relatively low detection limit of 3.81 {mu}M (S/N=3) towards H{sub 2}O{sub 2}.

  18. Next Generation Environmentally Friendly Driving Feedback Systems...

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

    Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon vss086barth2012o.pdf More Documents & Publications Next Generation Environmentally Friendly...

  19. Synthetic and Mechanistic Chemistry

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

    and Mechanistic Chemistry Security at center of chemical and mechanistic chemistry research at Lab Project Description Los Alamos scientists are using synthetic and mechanistic chemistry to address energy security and other emerging challenges, including global security and core weapons missions. Synthetic chemistry includes work in ligands for catalysts, fission-products separations for isotope delivery, and labeled substrates for reaction mechanisms. Other research addresses materials

  20. Synchronous identification of friendly targets

    DOE Patents [OSTI]

    Telle, John M. (126 Shady Oak Cir., Tijeras, NM 87059); Roger, Stutz A. (5 Kiowa La., Los Alamos, NM 87544)

    1998-01-01

    A synchronous communication targeting system for use in battle. The present invention includes a transceiver having a stabilizing oscillator, a synchronous amplifier and an omnidirectional receiver, all in electrical communication with each other. A remotely located beacon is attached to a blackbody radiation source and has an amplitude modulator in electrical communication with a optical source. The beacon's amplitude modulator is set so that the optical source transmits radiation frequency at approximately the same or lower amplitude than that of the blackbody radiation source to which the beacon is attached. The receiver from the transceiver is adapted to receive frequencies approximately at or below blackbody radiation signals and sends such signals to the synchronous amplifier. The synchronous amplifier then rectifies and amplifies those signals which correspond to the predetermined frequency to therefore identify whether the blackbody radiation source is friendly or not.

  1. Synthetic guide star generation

    DOE Patents [OSTI]

    Payne, Stephen A. (Castro Valley, CA) [Castro Valley, CA; Page, Ralph H. (Castro Valley, CA) [Castro Valley, CA; Ebbers, Christopher A. (Livermore, CA) [Livermore, CA; Beach, Raymond J. (Livermore, CA) [Livermore, CA

    2008-06-10

    A system for assisting in observing a celestial object and providing synthetic guide star generation. A lasing system provides radiation at a frequency at or near 938 nm and radiation at a frequency at or near 1583 nm. The lasing system includes a fiber laser operating between 880 nm and 960 nm and a fiber laser operating between 1524 nm and 1650 nm. A frequency-conversion system mixes the radiation and generates light at a frequency at or near 589 nm. A system directs the light at a frequency at or near 589 nm toward the celestial object and provides synthetic guide star generation.

  2. Synthetic guide star generation

    DOE Patents [OSTI]

    Payne, Stephen A.; Page, Ralph H.; Ebbers, Christopher A.; Beach, Raymond J.

    2004-03-09

    A system for assisting in observing a celestial object and providing synthetic guide star generation. A lasing system provides radiation at a frequency at or near 938 nm and radiation at a frequency at or near 1583 nm. The lasing system includes a fiber laser operating between 880 nm and 960 nm and a fiber laser operating between 1524 nm and 1650 nm. A frequency-conversion system mixes the radiation and generates light at a frequency at or near 589 nm. A system directs the light at a frequency at or near 589 nm toward the celestial object and provides synthetic guide star generation.

  3. Bio Friendly Fuel Partners LLC | Open Energy Information

    Open Energy Info (EERE)

    Bio Friendly Fuel Partners LLC Jump to: navigation, search Name: Bio Friendly Fuel Partners LLC Place: Danville, California Zip: 94526 Product: Biodiesel distributor and plant...

  4. Biodegradable synthetic bone composites

    DOE Patents [OSTI]

    Liu, Gao; Zhao, Dacheng; Saiz, Eduardo; Tomsia, Antoni P.

    2013-01-01

    The invention provides for a biodegradable synthetic bone composition comprising a biodegradable hydrogel polymer scaffold comprising a plurality of hydrolytically unstable linkages, and an inorganic component; such as a biodegradable poly(hydroxyethylmethacrylate)/hydroxyapatite (pHEMA/HA) hydrogel composite possessing mineral content approximately that of human bone.

  5. Developing Biological Specifications for Fish Friendly Turbines

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

    Developing Biological Specifications for Fish Friendly Turbines The U.S. Department of Energy's Advanced Hydropower Turbine Sys- tem (AHTS) Program supports the research and development of "envi- ronmentally friendly" turbines, i.e., turbine systems in which environmen- tal attributes, such as entrainment survival for fish, are emphasized. Advanced turbines would be suitable for installation at new hydropower facilities and potentially suitable for replacing aging turbines at existing

  6. Security Informatics Research Challenges for Mitigating Cyber Friendly Fire

    SciTech Connect (OSTI)

    Carroll, Thomas E.; Greitzer, Frank L.; Roberts, Adam D.

    2014-09-30

    This paper addresses cognitive implications and research needs surrounding the problem of cyber friendly re (FF). We dene cyber FF as intentional o*ensive or defensive cyber/electronic actions intended to protect cyber systems against enemy forces or to attack enemy cyber systems, which unintentionally harms the mission e*ectiveness of friendly or neutral forces. We describe examples of cyber FF and discuss how it ts within a general conceptual framework for cyber security failures. Because it involves human failure, cyber FF may be considered to belong to a sub-class of cyber security failures characterized as unintentional insider threats. Cyber FF is closely related to combat friendly re in that maintaining situation awareness (SA) is paramount to avoiding unintended consequences. Cyber SA concerns knowledge of a system's topology (connectedness and relationships of the nodes in a system), and critical knowledge elements such as the characteristics and vulnerabilities of the components that comprise the system and its nodes, the nature of the activities or work performed, and the available defensive and o*ensive countermeasures that may be applied to thwart network attacks. We describe a test bed designed to support empirical research on factors a*ecting cyber FF. Finally, we discuss mitigation strategies to combat cyber FF, including both training concepts and suggestions for decision aids and visualization approaches.

  7. Higgs friends and counterfeits at hadron colliders

    SciTech Connect (OSTI)

    Fox, Patrick J.; Tucker-Smith, David; Weiner, Neal; /New York U., CCPP /New York U. /Princeton, Inst. Advanced Study

    2011-04-01

    We consider the possibility of 'Higgs counterfeits' - scalars that can be produced with cross sections comparable to the SM Higgs, and which decay with identical relative observable branching ratios, but which are nonetheless not responsible for electroweak symmetry breaking. We also consider a related scenario involving 'Higgs friends,' fields similarly produced through gg fusion processes, which would be discovered through diboson channels WW,ZZ,{gamma}{gamma}, or even {gamma}Z, potentially with larger cross sections times branching ratios than for the Higgs. The discovery of either a Higgs friend or a Higgs counterfeit, rather than directly pointing towards the origin of the weak scale, would indicate the presence of new colored fields necessary for the sizable production cross section (and possibly new colorless but electroweakly charged states as well, in the case of the diboson decays of a Higgs friend). These particles could easily be confused for an ordinary Higgs, perhaps with an additional generation to explain the different cross section, and we emphasize the importance of vector boson fusion as a channel to distinguish a Higgs counterfeit from a true Higgs. Such fields would naturally be expected in scenarios with 'effective Z's,' where heavy states charged under the SM produce effective charges for SM fields under a new gauge force. We discuss the prospects for discovery of Higgs counterfeits, Higgs friends, and associated charged fields at the LHC.

  8. Portland, Oregon Climate-Friendly Infrastructure:

    Energy Savers [EERE]

    Portland, Oregon Climate-Friendly Infrastructure: Tilikum Crossing, Bridge of the People A White House Climate Action Champions Case Study INDEX Executive Summary...............................2 Climate Action Champion.....................2 Project Spotlight.................................3-5 Co-benefits.............................................6 Challenges and lessons learned...........6 Resources & Contacts............................7 2 Executive Summary The City of Portland's 2015

  9. Synthetic and Mechanistic Chemistry publications

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

    Synthetic and Mechanistic Chemistry » Synthetic and Mechanistic Synthetic and Mechanistic publications Research into alternative forms of energy, especially energy security, is one of the major national security imperatives of this century. Get Expertise Dave Thorn Chemistry Program Manager Email Josh Smith Chemistry Communications Email "Research into alternative forms of energy, of which biofuels is a key component, is one of the major national security imperatives of this century.

  10. Text-Alternative Version: Pedestrian-Friendly Nighttime Lighting Webinar

    Broader source: Energy.gov [DOE]

    Below is the text-alternative version of the "Pedestrian-Friendly Nighttime Lighting" webcast, held November 19, 2013.

  11. Towards a Research Agenda for Cyber Friendly Fire

    SciTech Connect (OSTI)

    Greitzer, Frank L.; Clements, Samuel L.; Carroll, Thomas E.; Fluckiger, Jerry D.

    2009-11-18

    Historical assessments of combat fratricide reveal principal contributing factors in the effects of stress, degradation of skills due to continuous operations or sleep deprivation, poor situation awareness, and lack of training and discipline in offensive/defense response selection. While these problems are typically addressed in R&D focusing on traditional ground-based combat, there is also an emerging need for improving situation awareness and decision making on defensive/offensive response options in the cyber defense arena, where a mistaken response to an actual or perceived cyber attack could lead to destruction or compromise of friendly cyber assets. The purpose of this report is to examine cognitive factors that may affect cyber situation awareness and describe possible research needs to reduce the likelihood and effects of "friendly cyber fire" on cyber defenses, information infrastructures, and data. The approach is to examine concepts and methods that have been described in research applied to the more traditional problem of mitigating the occurrence of combat identification and fratricide. Application domains of interest include cyber security defense against external or internal (insider) threats.

  12. finding environmentally friendly materials for MHK devices

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

    finding environmentally friendly materials for MHK devices - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense

  13. Bottom: The PNNL-developed Grid Friendly

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

    Bottom: The PNNL-developed Grid Friendly (tm) Appliance Controller was successfully tested in clothes dryers and water heaters in Washington and Oregon during a 2007 demonstration project. The controller senses stress on the electric grid and automatically and instantaneously responds to reduce the demand for electricity from appliances, such as turning off the heating element in a dryer for a few minutes. When applied in concert across multiple appliances in multiple households, this temporary

  14. SYNTHETIC SLING FAILURE - EVALUATIONS & RECOMMENDATIONS

    SciTech Connect (OSTI)

    MACKEY TC; HENDERSON CS

    2009-10-26

    The information and evaluations provided in this report were compiled to address the recurring problem of synthetic sling failure. As safety is the number one priority in all work aspects, a solution must be devised to prevent accidents from occurring. A total of thirteen cases regarding synthetic sling failure were evaluated in order to determine their causes, effects, and preventative measures. From the collected data, it was found that all cases in which the synthetic sling contacted the edge of its load resulted in sling failure. It is required that adequate synthetic sling protection devices be used to protect slings in any lift where the sling comes in direct contact with the edge or corner of its load. However, there are no consensus codes or standards stating the type, material, or purpose of the type of protective device used to protect the sling from being cut. Numerous industry standards and codes provide vague descriptions on how to protect synthetic slings. Without a clear, concise statement of how to protect synthetic slings, it is common for inadequate materials and sling protection devices to be used in an attempt to meet the intent of these requirements. The use of an inadequate sling protection device is the main cause of synthetic sling failure in all researched cases. Commercial sling protection devices come in many shapes and sizes, and have a variety of names, as well as advertised uses. 'Abrasion pads' and 'wear protectors' are two different names for products with the same intended purpose. There is no distinguishable way to determine the extent of sling protection which these devices will provide, or what specific scenarios they are made for. This creates room for error in a field where error is unacceptable. This report provides a recommended action for hoisting and rigging activities which require synthetic slings to contact a load, as well as recommended changes to industry standards which will benefit overall industry safety.

  15. Page 7, A Family-Friendly Workplace

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

    7 of 11 Previous Page A Family-Friendly Workplace The Department of Energy (DOE) takes its commitment to recruiting, retaining, and motivating a highly skilled, diverse, and productive workforce very seriously. Our objective is to be the employer of choice in the public sector. The U.S. Department of Energy is the Top-Ranked Cabinet-Level Agency for employee satisfaction and engagement according to the 2005 Best Places to Work in the Federal Government Rankings. Below is a summary of additional

  16. Photo of the Week: Grid Friendly | Department of Energy

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

    Grid Friendly Photo of the Week: Grid Friendly November 20, 2014 - 4:41pm Addthis Researchers at Pacific Northwest National Laboratory helped develop this integrated circuit to help make home appliances more responsive to the electric grid. When installed in refrigerators, air conditioners, water heaters and other appliances, the 2.5-inch Grid Friendly Appliance Controller can recognize when there's a power grid overload -- and will switch your appliances off and back on again to help conserve

  17. Pedestrian-Friendly Nighttime Lighting | Department of Energy

    Energy Savers [EERE]

    Webcasts » Pedestrian-Friendly Nighttime Lighting Pedestrian-Friendly Nighttime Lighting This November 19, 2013 webinar presented issues and considerations related to pedestrian-friendly nighttime lighting, such as color rendering, safety, and adaptation. When it comes to outdoor lighting, the industry has understandably focused on footcandles and uniformity, efficacy, pole spacing, and cutoff-but those are not the chief criteria for all neighborhoods. Presenter Naomi Miller of Pacific

  18. An Earth-Friendly Wind Vision | Department of Energy

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

    An Earth-Friendly Wind Vision An Earth-Friendly Wind Vision April 22, 2015 - 7:30am Addthis An Earth-Friendly Wind Vision Wind energy is a clean, domestic energy source that requires little to no water and creates no air pollution when compared with conventional energy technologies. In the Energy Department's new Wind Vision Report, a collaborative effort of more than 250 experts informed a comprehensive analysis that quantified the future national benefits of wind power, including reduced

  19. This Week In Petroleum Printer-Friendly Version

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    America to a new winter holiday Festivus. The Airing of Grievances, one of the core traditions of Festivus, involved friends and family telling each other about all the...

  20. DOE Announces Webinars on Pedestrian-Friendly Nighttime Lighting...

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

    Lighting, an Offshore Wind Economic Impacts Model, and More DOE Announces Webinars on Pedestrian-Friendly Nighttime Lighting, an Offshore Wind Economic Impacts Model, and More ...

  1. Development of a Secure, Economic and Environmentally friendly...

    Open Energy Info (EERE)

    Secure, Economic and Environmentally friendly Modern Power System (Smart Grid Project) Jump to: navigation, search Project Name Development of a Secure, Economic and...

  2. Grid Friendly Appliance(tm) Controller - Energy Innovation Portal

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

    The Grid Friendly Appliance controller developed at PNNL senses grid conditions by monitoring the frequency of the system and provides automatic demand response in times of ...

  3. Differential Optical Synthetic Aperture Radar

    DOE Patents [OSTI]

    Stappaerts, Eddy A. (San Ramon, CA)

    2005-04-12

    A new differential technique for forming optical images using a synthetic aperture is introduced. This differential technique utilizes a single aperture to obtain unique (N) phases that can be processed to produce a synthetic aperture image at points along a trajectory. This is accomplished by dividing the aperture into two equal "subapertures", each having a width that is less than the actual aperture, along the direction of flight. As the platform flies along a given trajectory, a source illuminates objects and the two subapertures are configured to collect return signals. The techniques of the invention is designed to cancel common-mode errors, trajectory deviations from a straight line, and laser phase noise to provide the set of resultant (N) phases that can produce an image having a spatial resolution corresponding to a synthetic aperture.

  4. Synthetic substrates for enzyme analysis

    DOE Patents [OSTI]

    Bissell, E.R.; Mitchell, A.R.; Pearson, K.W.; Smith, R.E.

    1983-06-14

    Synthetic substrates are provided which may be represented as A-D. The A moiety includes an amino acid, polypeptide, or derivative. The D moiety includes 7-amino coumarin derivatives having an electron withdrawing substituent group at the 3 position carbon or fused between the 3 and 4 position carbons. No Drawings

  5. Synthetic substrates for enzyme analysis

    DOE Patents [OSTI]

    Bissell, Eugene R. (Alamo, CA); Mitchell, Alexander R. (Livermore, CA); Pearson, Karen W. (Livermore, CA); Smith, Robert E. (Livermore, CA)

    1983-01-01

    Synthetic substrates are provided which may be represented as A-D. The A moiety thereof includes an amino acid, polypeptide, or derivative thereof. The D moiety thereof includes 7-amino coumarin derivatives having an electron withdrawing substituent group at the 3 position carbon or fused between the 3 and 4 position carbons.

  6. Field Testing of Environmentally Friendly Drilling System

    SciTech Connect (OSTI)

    David Burnett

    2009-05-31

    The Environmentally Friendly Drilling (EFD) program addresses new low-impact technology that reduces the footprint of drilling activities, integrates light weight drilling rigs with reduced emission engine packages, addresses on-site waste management, optimizes the systems to fit the needs of a specific development sites and provides stewardship of the environment. In addition, the program includes industry, the public, environmental organizations, and elected officials in a collaboration that addresses concerns on development of unconventional natural gas resources in environmentally sensitive areas. The EFD program provides the fundamentals to result in greater access, reasonable regulatory controls, lower development cost and reduction of the environmental footprint associated with operations for unconventional natural gas. Industry Sponsors have supported the program with significant financial and technical support. This final report compendium is organized into segments corresponding directly with the DOE approved scope of work for the term 2005-2009 (10 Sections). Each specific project is defined by (a) its goals, (b) its deliverable, and (c) its future direction. A web site has been established that contains all of these detailed engineering reports produced with their efforts. The goals of the project are to (1) identify critical enabling technologies for a prototype low-impact drilling system, (2) test the prototype systems in field laboratories, and (3) demonstrate the advanced technology to show how these practices would benefit the environment.

  7. Synthetic LDL as targeted drug delivery vehicle

    DOE Patents [OSTI]

    Forte, Trudy M. (Berkeley, CA); Nikanjam, Mina (Richmond, CA)

    2012-08-28

    The present invention provides a synthetic LDL nanoparticle comprising a lipid moiety and a synthetic chimeric peptide so as to be capable of binding the LDL receptor. The synthetic LDL nanoparticle of the present invention is capable of incorporating and targeting therapeutics to cells expressing the LDL receptor for diseases associated with the expression of the LDL receptor such as central nervous system diseases. The invention further provides methods of using such synthetic LDL nanoparticles.

  8. Synthetic thermoelectric materials comprising phononic crystals

    DOE Patents [OSTI]

    El-Kady, Ihab F; Olsson, Roy H; Hopkins, Patrick; Reinke, Charles; Kim, Bongsang

    2013-08-13

    Synthetic thermoelectric materials comprising phononic crystals can simultaneously have a large Seebeck coefficient, high electrical conductivity, and low thermal conductivity. Such synthetic thermoelectric materials can enable improved thermoelectric devices, such as thermoelectric generators and coolers, with improved performance. Such synthetic thermoelectric materials and devices can be fabricated using techniques that are compatible with standard microelectronics.

  9. Like Energy Savers? Tell Your Friends! | Department of Energy

    Office of Environmental Management (EM)

    Like Energy Savers? Tell Your Friends! Like Energy Savers? Tell Your Friends! May 25, 2010 - 7:30am Addthis Allison Casey Senior Communicator, NREL One of the best things about the latest social tools on the Web is that it's so easy to share information that we find useful, interesting, or entertaining. My friends and the people I follow in social media generally have interests that are similar to mine, so I like it when they share links that to content that interests them. If you find something

  10. DOE Publishes GATEWAY Report on Pedestrian Friendly Outdoor Lighting

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy (DOE) has published a new GATEWAY report entitled Pedestrian Friendly Outdoor Lighting. Recognizing that pedestrian lighting has different criteria for success than street and area lighting, GATEWAY followed t

  11. DOE Publishes GATEWAY Report on Pedestrian Friendly Outdoor Lighting

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy (DOE) has published a new GATEWAY report entitled Pedestrian Friendly Outdoor Lighting. Recognizing that pedestrian lighting has different criteria for success than...

  12. City of Friend, Nebraska (Utility Company) | Open Energy Information

    Open Energy Info (EERE)

    Power Place: Nebraska Phone Number: 402.947.2711 Website: www.ci.friend.ne.usbusiness.h Outage Hotline: After Hours: (402) 947-2017 References: EIA Form EIA-861 Final Data File...

  13. AHA Recognizes Fit-Friendly Worksites at SRS

    Broader source: Energy.gov [DOE]

    AIKEN, S.C. – Two contractors supporting the EM program at the Savannah River Site (SRS) were recognized recently as Fit-Friendly Worksites by the American Heart Association (AHA).

  14. This Week In Petroleum Printer-Friendly Version

    Gasoline and Diesel Fuel Update (EIA)

    authors, support staff, and others in EIA who make This Week In Petroleum possible, best wishes for a safe and joyous holiday season. Seasons Greetings From Your Friends at the...

  15. This Week In Petroleum Printer-Friendly Version

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    authors, support staff, and others in EIA who make This Week In Petroleum possible, best wishes for a safe and happy new year. Happy Holidays From Your Friends at the Energy...

  16. This Week In Petroleum Printer-Friendly Version

    Gasoline and Diesel Fuel Update (EIA)

    support staff, and others in the EIA who make "This Week In Petroleum" possible, best wishes for a safe and happy new year. Happy Holidays from your friends at the Energy...

  17. DOE Announces Webinars on Pedestrian-Friendly Nighttime Lighting, an

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

    Offshore Wind Economic Impacts Model, and More | Department of Energy Pedestrian-Friendly Nighttime Lighting, an Offshore Wind Economic Impacts Model, and More DOE Announces Webinars on Pedestrian-Friendly Nighttime Lighting, an Offshore Wind Economic Impacts Model, and More November 13, 2013 - 4:17pm Addthis EERE offers webinars to the public on a range of subjects, from adopting the latest energy efficiency and renewable energy technologies to training for the clean energy workforce.

  18. Moab Project Receives Award for Purchasing Environmentally Friendly

    Office of Environmental Management (EM)

    Products | Department of Energy Moab Project Receives Award for Purchasing Environmentally Friendly Products Moab Project Receives Award for Purchasing Environmentally Friendly Products February 26, 2014 - 12:00pm Addthis MOAB, Utah - EM's Moab Uranium Mill Tailings Remedial Action Project in Utah was one of three GreenBuy Award recipients for fiscal year 2013. DOE's Office of Sustainability Support awarded the Moab Project the highest level - the Gold Award - for achieving nine goals in

  19. A Family-Friendly Workplace | Department of Energy

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

    Services » New Employee Orientation » A Family-Friendly Workplace A Family-Friendly Workplace The Department of Energy (DOE) takes its commitment to recruiting, retaining, and motivating a highly skilled, diverse, and productive workforce very seriously. Our objective is to be the employer of choice in the public sector. The U.S. Department of Energy is the Top-Ranked Cabinet-Level Agency for employee satisfaction and engagement according to the 2005 Best Places to Work in the Federal

  20. Synthetic carbonaceous fuels and feedstocks

    DOE Patents [OSTI]

    Steinberg, Meyer (Huntington Station, NY)

    1980-01-01

    This invention relates to the use of a three compartment electrolytic cell in the production of synthetic carbonaceous fuels and chemical feedstocks such as gasoline, methane and methanol by electrolyzing an aqueous sodium carbonate/bicarbonate solution, obtained from scrubbing atmospheric carbon dioxide with an aqueous sodium hydroxide solution, whereby the hydrogen generated at the cathode and the carbon dioxide liberated in the center compartment are combined thermocatalytically into methanol and gasoline blends. The oxygen generated at the anode is preferably vented into the atmosphere, and the regenerated sodium hydroxide produced at the cathode is reused for scrubbing the CO.sub.2 from the atmosphere.

  1. Collaborative Approach Will Improve Malaria Diagnostic Test ...

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

    Approach Will Improve Malaria Detection Test Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window)...

  2. Synthetic Antimicrobial Oligomers Induce Composition-dependent...

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

    generated in antimicrobial-membrane interactions is an essential step to elucidating such molecular mechanisms and therefore to the pre dictive design of synthetic AMP analogs. ...

  3. Synthetic Aperture Radar Persistent Scatterer Interferometry...

    Open Energy Info (EERE)

    NA, 2010 DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for Synthetic Aperture Radar Persistent Scatterer Interferometry (PSInSAR)...

  4. Sandia National Laboratories: Synthetic Aperture Radar (SAR)...

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

    Synthetic Aperture Radar (SAR) Imagery The following is a selection of imagery available for your viewing, sorted by frequency band andor program. (Note: Resolutions are for...

  5. Synthetic Genomics Inc | Open Energy Information

    Open Energy Info (EERE)

    search Name: Synthetic Genomics Inc. Place: La Jolla, California Sector: Hydro, Hydrogen, Renewable Energy Product: California-based company planning to create new types of...

  6. Renewable Energy from Synthetic Biology (LBNL Science at the Theater)

    ScienceCinema (OSTI)

    Keasling, Jay

    2011-04-28

    Jay Keasling, co-leader of Berkeley Lab's Helios Project, is a groundbreaking researcher in the new scientific field of synthetic biology. In Helios, he directs the biology program, incorporating a range of approaches to increasing the efficacy and economy of plants and cellulose-degrading microbes to make solar-based fuels. He is a UC Berkeley professor of Chemical and Bioengineering, and founder of Amyris Biotechnologies, a company that was honored as a Technology Pioneer for 2006 by the World Economic Forum. Keasling has succeeded in using synthetic biology to develop a yeast-based production scheme for precursors of the antimalarial drug artemisinin in work funded by the Bill & Melinda Gates Foundation.

  7. Development of HydroImage, A User Friendly Hydrogeophysical Characterization Software

    SciTech Connect (OSTI)

    Mok, Chin Man; Hubbard, Susan; Chen, Jinsong; Suribhatla, Raghu; Kaback, Dawn Samara

    2014-01-29

    HydroImage, user friendly software that utilizes high-resolution geophysical data for estimating hydrogeological parameters in subsurface strate, was developed under this grant. HydroImage runs on a personal computer platform to promote broad use by hydrogeologists to further understanding of subsurface processes that govern contaminant fate, transport, and remediation. The unique software provides estimates of hydrogeological properties over continuous volumes of the subsurface, whereas previous approaches only allow estimation of point locations. thus, this unique tool can be used to significantly enhance site conceptual models and improve design and operation of remediation systems. The HydroImage technical approach uses statistical models to integrate geophysical data with borehole geological data and hydrological measurements to produce hydrogeological parameter estimates as 2-D or 3-D images.

  8. DOE Tour of Zero: The Eco-Friendly Home by Ferguson Design and...

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

    Friendly Home by Ferguson Design and Construction Inc. DOE Tour of Zero: The Eco-Friendly Home by Ferguson Design and Construction Inc. Addthis 1 of 13 This high-performance custom...

  9. EERE Success Story-Alden Fish Friendly Turbine Allows for Safe...

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

    Alden Fish Friendly Turbine Allows for Safe Fish Passage EERE Success Story-Alden Fish Friendly Turbine Allows for Safe Fish Passage March 6, 2014 - 10:01am Addthis The Electric ...

  10. Lubricant-Friendly, Superhard and Low-Friction Coatings by Design...

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

    Lubricant-Friendly, Superhard and Low-Friction Coatings by Design Lubricant-Friendly, Superhard and Low-Friction Coatings by Design Superhard and low-friction coatings and surface...

  11. Synthetic analogs of bacterial quorum sensors

    DOE Patents [OSTI]

    Iyer, Rashi (Los Alamos, NM); Ganguly, Kumkum (Los Alamos, NM); Silks, Louis A. (Los Alamos, NM)

    2011-12-06

    Bacterial quorum-sensing molecule analogs having the following structures: ##STR00001## and methods of reducing bacterial pathogenicity, comprising providing a biological system comprising pathogenic bacteria which produce natural quorum-sensing molecule; providing a synthetic bacterial quorum-sensing molecule having the above structures and introducing the synthetic quorum-sensing molecule into the biological system comprising pathogenic bacteria. Further is provided a method of targeted delivery of an antibiotic, comprising providing a synthetic quorum-sensing molecule; chemically linking the synthetic quorum-sensing molecule to an antibiotic to produce a quorum-sensing molecule-antibiotic conjugate; and introducing the conjugate into a biological system comprising pathogenic bacteria susceptible to the antibiotic.

  12. Synthetic analogs of bacterial quorum sensors

    DOE Patents [OSTI]

    Iyer, Rashi S.; Ganguly, Kumkum; Silks, Louis A.

    2013-01-08

    Bacterial quorum-sensing molecule analogs having the following structures: ##STR00001## and methods of reducing bacterial pathogenicity, comprising providing a biological system comprising pathogenic bacteria which produce natural quorum-sensing molecule; providing a synthetic bacterial quorum-sensing molecule having the above structures and introducing the synthetic quorum-sensing molecule into the biological system comprising pathogenic bacteria. Further is provided a method of targeted delivery of an antibiotic, comprising providing a synthetic quorum-sensing molecule; chemically linking the synthetic quorum-sensing molecule to an antibiotic to produce a quorum-sensing molecule-antibiotic conjugate; and introducing the conjugate into a biological system comprising pathogenic bacteria susceptible to the antibiotic.

  13. Performance limits for maritime Inverse Synthetic Aperture Radar...

    Office of Scientific and Technical Information (OSTI)

    Performance limits for maritime Inverse Synthetic Aperture Radar (ISAR). Citation Details In-Document Search Title: Performance limits for maritime Inverse Synthetic Aperture Radar...

  14. Synthetic heparin-binding growth factor analogs

    DOE Patents [OSTI]

    Pena, Louis A.; Zamora, Paul; Lin, Xinhua; Glass, John D.

    2007-01-23

    The invention provides synthetic heparin-binding growth factor analogs having at least one peptide chain that binds a heparin-binding growth factor receptor, covalently bound to a hydrophobic linker, which is in turn covalently bound to a non-signaling peptide that includes a heparin-binding domain. The synthetic heparin-binding growth factor analogs are useful as soluble biologics or as surface coatings for medical devices.

  15. Synthetic CO.sub.2 acceptor

    DOE Patents [OSTI]

    Lancet, Michael S. (Pittsburgh, PA); Curran, George P. (Pittsburgh, PA)

    1981-08-18

    A synthetic CO.sub.2 acceptor consisting essentially of at least one compound selected from the group consisting of calcium oxide and calcium carbonate supported in a refractory carrier matrix, the carrier having the general formula Ca.sub.5 (SiO.sub.4).sub.2 CO.sub.3. A method for producing the synthetic CO.sub.2 acceptor is also disclosed.

  16. Alden Fish Friendly Turbine Allows for Safe Fish Passage | Department of

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

    Energy Alden Fish Friendly Turbine Allows for Safe Fish Passage Alden Fish Friendly Turbine Allows for Safe Fish Passage March 6, 2014 - 10:01am Addthis The Electric Power Research Institute (EPRI), in partnership with Alden Research Laboratory and Voith Hydro, has developed a more environmentally friendly option for hydroelectric power generation. The Alden Fish Friendly Turbine will allow for the safe passage of fish downstream through an operating turbine. EPRI deployed and tested the

  17. Electrode Materials for Rechargeable Lithium-Ion Batteries: A New Synthetic

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

    Approach | Argonne National Laboratory Electrode Materials for Rechargeable Lithium-Ion Batteries: A New Synthetic Approach Technology available for licensing: New high-energy cathode materials for use in rechargeable lithium-ion cells and batteries synthesized by using a novel alternative approach Lowers battery pack cost. Layered cathode material contains low-cost manganese, which operates at high rate and high voltage and results in a high-energy-density battery with improved stability.

  18. Fish Protection: Cooperative research advances fish-friendly turbine design

    SciTech Connect (OSTI)

    Brown, Richard S.; Ahmann, Martin L.; Trumbo, Bradly A.; Foust, Jason

    2012-12-01

    Renewable hydropower is a tremendous resource within the Pacific Northwest that is managed with considerable cost and consideration for the safe migration of salmon. Recent research conducted in this region has provided results that could lower the impacts of hydro power production and make the technology more fish-friendly. This research is now being applied during a period when a huge emphasis is being made to develop clean, renewable energy sources.

  19. ENERGY EFFICIENCY AND ENVIRONMENTALLY FRIENDLY DISTRIBUTED ENERGY STORAGE BATTERY

    SciTech Connect (OSTI)

    LANDI, J.T.; PLIVELICH, R.F.

    2006-04-30

    Electro Energy, Inc. conducted a research project to develop an energy efficient and environmentally friendly bipolar Ni-MH battery for distributed energy storage applications. Rechargeable batteries with long life and low cost potentially play a significant role by reducing electricity cost and pollution. A rechargeable battery functions as a reservoir for storage for electrical energy, carries energy for portable applications, or can provide peaking energy when a demand for electrical power exceeds primary generating capabilities.

  20. Los Alamos' continued commitment to our friends, partners and neighbors

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

    Personal message Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue:Mar. 2016 all issues All Issues » submit Los Alamos' continued commitment to our friends, partners and neighbors A personal message from Richard Marquez, Executive Director, Los Alamos National Laboratory May 1, 2015 Richard Marquez, Executive Director Richard Marquez, Executive Director Contacts Community Programs Director (Acting) Carole Rutten Email Editor Ute Haker

  1. Inexpensive, Environmentally Friendly and Highly Permeable Lignin-Based Ion

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

    Exchangers - Energy Innovation Portal Industrial Technologies Industrial Technologies Find More Like This Return to Search Inexpensive, Environmentally Friendly and Highly Permeable Lignin-Based Ion Exchangers Lawrence Livermore National Laboratory Contact LLNL About This Technology Technology Marketing Summary For more than 10 years, a partnership between Kazakh and US researchers has led to the synthesis and testing of highly permeable ion-exchangers. These materials possess an increased

  2. New Synthetic Methods for Hypericum Natural Products

    SciTech Connect (OSTI)

    Insik Jeon

    2006-12-12

    Organic chemistry has served as a solid foundation for interdisciplinary research areas, such as molecular biology and medicinal chemistry. An understanding of the biological activities and structural elucidations of natural products can lead to the development of clinically valuable therapeutic options. The advancements of modern synthetic methodologies allow for more elaborate and concise natural product syntheses. The theme of this study centers on the synthesis of natural products with particularly challenging structures and interesting biological activities. The synthetic expertise developed here will be applicable to analog syntheses and to other research problems.

  3. Synthetic heparin-binding factor analogs

    DOE Patents [OSTI]

    Pena, Louis A.; Zamora, Paul O.; Lin, Xinhua; Glass, John D.

    2010-04-20

    The invention provides synthetic heparin-binding growth factor analogs having at least one peptide chain, and preferably two peptide chains branched from a dipeptide branch moiety composed of two trifunctional amino acid residues, which peptide chain or chains bind a heparin-binding growth factor receptor and are covalently bound to a non-signaling peptide that includes a heparin-binding domain, preferably by a linker, which may be a hydrophobic linker. The synthetic heparin-binding growth factor analogs are useful as pharmaceutical agents, soluble biologics or as surface coatings for medical devices.

  4. Immobilization of radioiodine in synthetic boracite

    DOE Patents [OSTI]

    Babad, H.; Strachan, D.M.

    1982-09-23

    A nuclear waste storage product is disclosed in which radioiodine is incorporated in a synthetic boracite. The boracite may be prepared by reacting a transition metal iodide with an alkali horate under mild hydrothermal conditions, drying the reaction product, and then hot pressing.

  5. Coal based synthetic fuel technology assessment guides

    SciTech Connect (OSTI)

    Not Available

    1981-09-01

    Seventeen synthetic fuel processes are described in detail and compared on a uniform basis. This work was supported by the Energy Information Administration for the purpose of technology assessment of the processes, their efficiency, the capitalized and operating cost of plants of similar size, possible constraints, possible siting problems, regional effects, pollution control, etc. (LTN)

  6. Newmark-Hall synthetic history development

    SciTech Connect (OSTI)

    Aramayo, G.A.

    1990-11-01

    The methodology used to develop synthetic acceleration time histories with spectral content that envelopes the Newmark-Hall spectra is described. Six acceleration time histories are developed for two conditions of foundation and 3 critical damping factors. The target spectra corresponds to the mediam centered probability level.

  7. Capturing the emerging market for climate-friendly technologies: opportunities for Ohio

    SciTech Connect (OSTI)

    2006-11-15

    This paper briefly describes the factors driving the growing demand for climate-friendly technologies, some of the key existing companies, organizations, and resources in Ohio, and the potential for Ohio to become a leading supplier of climate solutions. These solutions include a new generation of lower-emitting coal technologies, components for wind turbines, and the feedstocks and facilities to produce biofuels. Several public-private partnerships and initiatives have been established in Ohio. These efforts have encouraged the development of numerous federal- and state-funded projects and attracted major private investments in two increasingly strategic sectors of the Ohio economy: clean-coal technology and alternative energy technology, with a focus on fuel cells. Several major clean-coal projects have been recently initiated in Ohio. In April 2006, the Public Utilities Commission of Ohio approved American Electric Power's (AEP) plan to build a 600 MW clean-coal plant along the Ohio River in Meigs County. The plant will use Integrated Gasification Combined Cycle (IGCC) technology which makes it easier to capture carbon dioxide for sequestration. Three other potential coal gasification facilities are being considered in Ohio: a combination IGCC and synthetic natural gas plant in Allen County by Global Energy/Lima Energy; a coal-to-fuels facility in Lawrence County by Baard Energy, and a coal-to-fuels facility in Scioto County by CME North American Merchant Energy. The paper concludes with recommendations for how Ohio can capitalize on these emerging opportunities. These recommendations include focusing and coordinating state funding of climate technology programs, promoting the development of climate-related industry clusters, and exploring export opportunities to states and countries with existing carbon constraints.

  8. Study Says Owners of Energy-Efficient Homes Would Recommend Them to Friends

    Energy Savers [EERE]

    | Department of Energy Study Says Owners of Energy-Efficient Homes Would Recommend Them to Friends Study Says Owners of Energy-Efficient Homes Would Recommend Them to Friends Photo of a house. A recent National Association of Home Builders (NAHB) study aimed at uncovering how owners of energy-efficient homes felt after purchasing their homes found that not only would the majority recommend the same green homes to friends, but more than 50% believed the benefits of energy efficiency

  9. Energy Department Announces $10 Million to Advance Efficient, Environmentally-Friendly Highway Transportation Technologies

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Energy Department announced today $10 million for eight incubator projects to develop innovative solutions for efficient and environmentally-friendly vehicle technologies that will help reduce...

  10. Fish-Friendly Turbine Making a Splash in Water Power | Department of Energy

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

    Fish-Friendly Turbine Making a Splash in Water Power Fish-Friendly Turbine Making a Splash in Water Power October 21, 2011 - 10:29am Addthis A computer simulation of the Alden Fish-Friendly Turbine. A computer simulation of the Alden Fish-Friendly Turbine. Rajesh Dham Hydropower Technology Team Lead How does it work? The Alden turbine has three blades, no gaps, is bigger and rotates more slowly than typical hydro turbines. At peak performance, an Alden turbine should convert about 94 percent of

  11. A bio-synthetic interface for discovery of viral entry mechanisms.

    SciTech Connect (OSTI)

    Gutzler, Mike; Maar, Dianna; Negrete, Oscar; Hayden, Carl C.; Sasaki, Darryl Yoshio; Stachowiak, Jeanne C.; Wang, Julia

    2010-09-01

    Understanding and defending against pathogenic viruses is an important public health and biodefense challenge. The focus of our LDRD project has been to uncover the mechanisms enveloped viruses use to identify and invade host cells. We have constructed interfaces between viral particles and synthetic lipid bilayers. This approach provides a minimal setting for investigating the initial events of host-virus interaction - (i) recognition of, and (ii) entry into the host via membrane fusion. This understanding could enable rational design of therapeutics that block viral entry as well as future construction of synthetic, non-proliferating sensors that detect live virus in the environment. We have observed fusion between synthetic lipid vesicles and Vesicular Stomatitis virus particles, and we have observed interactions between Nipah virus-like particles and supported lipid bilayers and giant unilamellar vesicles.

  12. Analysis of Environmentally Friendly Refrigerant Options for Window Air Conditioners

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

    Bansal, Pradeep; Shen, Bo

    2015-03-12

    This paper presents a technical assessment of environmentally friendly refrigerants as alternatives to R410A for window air conditioners. The alternative refrigerants that are studied for its replacement include R32, a mixture of R32/R125 with 90%/10% molar concentration, R600a, R290, R1234yf, R1234ze and R134a. Baseline experiments were performed on a window unit charged with R410A. The heat pump design model (HPDM) was modified and calibrated with the baseline data and was used to evaluate the comparative performance of the WAC with alternative refrigerants. The paper discusses the advantages and disadvantages of each refrigerants and their suitability for window air conditioners. Amongmore » all the refrigerants studied, R32 offers the best efficiency and the lowest Global Warming Potential (GWP), and hence its use will result in the overall environmental friendliness.« less

  13. Analysis of Environmentally Friendly Refrigerant Options for Window Air Conditioners

    SciTech Connect (OSTI)

    Bansal, Pradeep; Shen, Bo

    2015-01-01

    This paper presents a technical assessment of environmentally friendly refrigerants as alternatives to R410A for window air conditioners. The alternative refrigerants that are studied for its replacement include R32, a mixture of R32/R125 with 90%/10% molar concentration, R600a, R290, R1234yf, R1234ze and R134a. Baseline experiments were performed on a window unit charged with R410A. The heat pump design model (HPDM) was modified and calibrated with the baseline data and was used to evaluate the comparative performance of the WAC with alternative refrigerants. The paper discusses the advantages and disadvantages of each refrigerants and their suitability for window air conditioners. Among all the refrigerants studied, R32 offers the best efficiency and the lowest Global Warming Potential (GWP), and hence its use will result in the overall environmental friendliness.

  14. Assessment of Environmentally Friendly Refrigerants for Window Air Conditioners

    SciTech Connect (OSTI)

    Bansal, Pradeep; Shen, Bo

    2014-01-01

    This paper presents technical assessment of environmentally friendly refrigerants for window air conditioners that currently use refrigerant R410A for residential and commercial applications. The alternative refrigerants that are studied for its replacement include R32, R600a, R290, R1234yf, R1234ze and a mixture of R32 (90% molar concentration) and R125 (10% molar concentration). Baseline experiments were performed on a window unit charged with R410A. The ORNL Heat Pump Design Model was calibrated with the baseline data and was used to assess the comparative performance of the WAC with alternative refrigerants. The paper discusses the advantages and disadvantages of each refrigerants and their suitability for window air conditioners.

  15. Integrated Operation of INL HYTEST System and High-Temperature Steam Electrolysis for Synthetic Natural Gas Production

    SciTech Connect (OSTI)

    Carl Marcel Stoots; Lee Shunn; James O'Brien

    2010-06-01

    The primary feedstock for synthetic fuel production is syngas, a mixture of carbon monoxide and hydrogen. Current hydrogen production technologies rely upon fossil fuels and produce significant quantities of greenhouse gases as a byproduct. This is not a sustainable means of satisfying future hydrogen demands, given the current projections for conventional world oil production and future targets for carbon emissions. For the past six years, the Idaho National Laboratory has been investigating the use of high-temperature steam electrolysis (HTSE) to produce the hydrogen feedstock required for synthetic fuel production. High-temperature electrolysis water-splitting technology, combined with non-carbon-emitting energy sources, can provide a sustainable, environmentally-friendly means of large-scale hydrogen production. Additionally, laboratory facilities are being developed at the INL for testing hybrid energy systems composed of several tightly-coupled chemical processes (HYTEST program). The first such test involved the coupling of HTSE, CO2 separation membrane, reverse shift reaction, and methanation reaction to demonstrate synthetic natural gas production from a feedstock of water and either CO or a simulated flue gas containing CO2. This paper will introduce the initial HTSE and HYTEST testing facilities, overall coupling of the technologies, testing results, and future plans.

  16. Final Technical Report for Alternative Fuel Source Study-An Energy Efficient and Environmentally Friendly Approach

    SciTech Connect (OSTI)

    Zee, Ralph; Schindler, Anton; Duke, Steve; Burch, Thom; Bransby, David; Stafford, Don

    2010-08-31

    The objective of this project is to conduct research to determine the feasibility of using alternate fuel sources for the production of cement. Successful completion of this project will also be beneficial to other commercial processes that are highly energy intensive. During this report period, we have completed all the subtasks in the preliminary survey. Literature searches focused on the types of alternative fuels currently used in the cement industry around the world. Information was obtained on the effects of particular alternative fuels on the clinker/cement product and on cement plant emissions. Federal regulations involving use of waste fuels were examined. Information was also obtained about the trace elements likely to be found in alternative fuels, coal, and raw feeds, as well as the effects of various trace elements introduced into system at the feed or fuel stage on the kiln process, the clinker/cement product, and concrete made from the cement. The experimental part of this project involves the feasibility of a variety of alternative materials mainly commercial wastes to substitute for coal in an industrial cement kiln in Lafarge NA and validation of the experimental results with energy conversion consideration.

  17. Micro/nanofabricated environments for synthetic biology

    SciTech Connect (OSTI)

    Collier, Pat [ORNL; Simpson, Michael L [ORNL

    2011-01-01

    A better understanding of how confinement, crowding and reduced dimensionality modulate reactivity and reaction dynamics will aid in the rational and systematic discovery of functionality in complex biological systems. Artificial micro- and nanofabricated structures have helped elucidate the effects of nanoscale spatial confinement and segregation on biological behavior, particularly when integrated with microfluidics, through precise control in both space and time of diffusible signals and binding interactions. Examples of nanostructured interfaces for synthetic biology include the development of cell-like compartments for encapsulating biochemical reactions, nanostructured environments for fundamental studies of diffusion, molecular transport and biochemical reaction kinetics, and regulation of biomolecular interactions as functions of micro- and nanofabricated topological constraints.

  18. Environmental Mitigation Technology (Innovative System Testing)-Deployment and Testing of the Alden Hydropower Fish-Friendly Turbine

    Broader source: Energy.gov [DOE]

    Environmental Mitigation Technology (Innovative System Testing)-Deployment and Testing of the Alden Hydropower Fish-Friendly Turbine

  19. Natural Gas Weekly Update, Printer-Friendly Version

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    increased at all market locations in the Lower 48 States, owing to the aftermath of Hurricane Katrina and the approaching Hurricane Rita. For the week (Wednesday-Wednesday),...

  20. This Week In Petroleum Summary Printer-Friendly Version

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    5, 2013. West Coast Leads Recent Gasoline Price Declines As the Labor Day weekend approaches, the U.S. national average retail price for regular gasoline has drifted...

  1. A model for improving microbial biofuel production using a synthetic

    Office of Scientific and Technical Information (OSTI)

    feedback loop (Journal Article) | SciTech Connect A model for improving microbial biofuel production using a synthetic feedback loop Citation Details In-Document Search Title: A model for improving microbial biofuel production using a synthetic feedback loop Cells use feedback to implement a diverse range of regulatory functions. Building synthetic feedback control systems may yield insight into the roles that feedback can play in regulation since it can be introduced independently of native

  2. Vehicle Technologies Office Merit Review 2014: Synthetic Solutions for

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

    Correcting Voltage Fade in LMR-NMC Cathodes | Department of Energy Synthetic Solutions for Correcting Voltage Fade in LMR-NMC Cathodes Vehicle Technologies Office Merit Review 2014: Synthetic Solutions for Correcting Voltage Fade in LMR-NMC Cathodes Presentation given by Argonne National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about synthetic solutions for correcting voltage fade in LMR-NMC

  3. Synthetic biology and crop engineering | Department of Energy

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

    Synthetic biology and crop engineering Synthetic biology and crop engineering Breakout Session 2: Frontiers and Horizons Session 2-A: Synthetic Biology and the Promise of Biofuels Jonathan Burbaum, Program Director, Department of Energy, Office of Science, ARPA-E PDF icon b13_burbaum_2-a.pdf More Documents & Publications EIS-0481: Final Programmatic Environmental Impact Statement EIS-0481: Draft Programmatic Environmental Impact Statement EIS-0481: Notice of Intent to Prepare a Programmatic

  4. Synthetic magnetoelectric coupling in a nanocomposite multiferroic

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

    Jain, P.; Wang, Q.; Roldan, M.; Glavic, A.; Lauter, V.; Urban, C.; Bi, Z.; Ahmed, T.; Zhu, J.; Varela, M.; et al

    2015-03-13

    Given the paucity of single phase multiferroic materials (with large ferromagnetic moment), composite systems seem an attractive solution to realize magnetoelectric coupling between ferromagnetic and ferroelectric order parameters. Despite having antiferromagnetic order, BiFeO₃ (BFO) has nevertheless been a key material due to excellent ferroelectric properties at room temperature. We studied a superlattice composed of 8 repetitions of 6 unit cells of La₀.₇Sr₀.₃MnO₃ (LSMO) grown on 5 unit cells of BFO. Significant net uncompensated magnetization in BFO, an insulating superlattice, is demonstrated using polarized neutron reflectometry. Remarkably, the magnetization enables magnetic field to change the dielectric properties of the superlattice, whichmore » we cite as an example of synthetic magnetoelectric coupling. Importantly, controlled creation of magnetic moment in BFO is a much needed path toward design and implementation of integrated oxide devices for next generation magnetoelectric data storage platforms.« less

  5. Inversion of synthetic aperture radar interferograms for sources...

    Open Energy Info (EERE)

    Inversion of synthetic aperture radar interferograms for sources of production-related subsidence at the Dixie Valley geothermal field Jump to: navigation, search OpenEI Reference...

  6. New synthetic strategy for porous molecular materials towards gas

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

    separation | Center for Gas SeparationsRelevant to Clean Energy Technologies | Blandine Jerome New synthetic strategy for porous molecular materials towards gas separation

  7. A versatile synthetic route for the preparation of titanium metal...

    Office of Scientific and Technical Information (OSTI)

    metal-organic frameworks Citation Details In-Document Search Title: A versatile synthetic route for the preparation of titanium metal-organic frameworks Exploitation of new ...

  8. Environmental data energy technology characterizations: synthetic fuels

    SciTech Connect (OSTI)

    Not Available

    1980-04-01

    Environmental Data Energy Technology Characterizations are publications which are intended to provide policy analysts and technical analysts with basic environmental data associated with key energy technologies. This publication provides documentation on synthetic fuels (coal-derived and oil shale). The transformation of the energy in coal and oil shale into a more useful form is described in this publication in terms of major activity areas in the synthetic fuel cycles, that is, in terms of activities which produce either an energy product or a fuel leading to the production of an energy product in a different form. The activities discussed in this document are coal liquefaction, coal gasification, in-situ gasification, and oil shales. These activities represent both well-documented and advanced activity areas. The former activities are characterized in terms of actual operating data with allowance for future modification where appropriate. Emissions are assumed to conform to environmental standards. The advanced activity areas examined are those like coal liquefaction and in-situ retorting of oil shale. For these areas, data from pilot or demonstration plants were used where available; otherwise, engineering studies provided the data. The organization of the chapters in this volume is designed to support the tabular presentation in the summary volume. Each chapter begins with a brief description of the activity under consideration. The standard characteristics, size, availability, mode of functioning and place in the fuel cycle are presented. Next, major legislative and/or technological factors influencing the commercial operation of the activity are offered. Discussions of resources consumed, residuals produced, and economics follow. To aid in comparing and linking the different activity areas, data for each area are normalized to 10/sup 12/ Btu of energy output from the activity.

  9. Eco-friendly Battery and Solar Cell All-in-One | U.S. DOE Office...

    Office of Science (SC) Website

    Eco-friendly Battery and Solar Cell All-in-One Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy ...

  10. Final Turbine and Test Facility Design Report Alden/NREC Fish Friendly Turbine

    Broader source: Energy.gov [DOE]

    The final report provides an overview of the Alden/NREC Fish Friendly turbine design phase, turbine test plan, preliminary test results, costs, schedule, and a hypothetical application at a real world project.

  11. Y-12 employees, families and friends help East Tennessee during annual

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

    Volunteer Day | Y-12 National Security Complex employees, families ... Y-12 employees, families and friends help East Tennessee during annual Volunteer Day Posted: May 7, 2015 - 3:34pm Chris Clark, Contractor Assurance manager, and Rick Glass, Vice President of Mission Assurance for CNS, volunteered at the Oak Ridge Children's Museum. Y-12 National Security Complex employees, their families and friends lent helping hands to some 32 projects throughout the area - painting, landscaping,

  12. Lubricant-Friendly, Superhard and Low-Friction Coatings by Design |

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

    Department of Energy Lubricant-Friendly, Superhard and Low-Friction Coatings by Design Lubricant-Friendly, Superhard and Low-Friction Coatings by Design Superhard and low-friction coatings and surface treatments can help improve fuel economy and durability in engines. PDF icon deer08_erdemir.pdf More Documents & Publications Low-Friction Hard Coatings Low-Friction Engineered Surfaces Ultra-Fast Chemical Conversion Surfaces

  13. Electrode Materials for Rechargeable Li-ion Batteries: a New Synthetic

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

    Approach (ANL-IN-10-031) - Energy Innovation Portal Vehicles and Fuels Vehicles and Fuels Energy Storage Energy Storage Find More Like This Return to Search Electrode Materials for Rechargeable Li-ion Batteries: a New Synthetic Approach (ANL-IN-10-031) Argonne National Laboratory Contact ANL About This Technology <p> This figure shows the high-rate performance of the new class of cathode materials featuring bi-layered structures.&nbsp; The highest current rate of 1500

  14. Natural Gas Weekly Update, Printer-Friendly Version

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    lost less than 1 cent for the week, settling on Friday, June 8 at 3.922 per MMBtu. Once again, weekly storage injections topped 100 Bcf, approaching or exceeding regional...

  15. This Week In Petroleum Printer-Friendly Version

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    on May 19, 2010) Summer Gasoline and the 3-2-1 Crack Spread As Memorial Day weekend approaches, many consumers are starting to pay more attention to gasoline prices, which...

  16. Natural Gas Weekly Update, Printer-Friendly Version

    Gasoline and Diesel Fuel Update (EIA)

    Market Trends: Well Closures in the Gulf of Mexico Owing To Storm Activity: Hurricane Frances was still a Category Three storm by Friday, September 3, as it approached Florida and...

  17. Natural Gas Weekly Update, Printer-Friendly Version

    Gasoline and Diesel Fuel Update (EIA)

    its oil and natural gas royalty-in-kind (RIK) program, which is expected to increase revenue and lower administrative costs linked with the program. The RIK approach takes...

  18. Motion Measurement for Synthetic Aperture Radar.

    SciTech Connect (OSTI)

    Doerry, Armin W.

    2015-01-01

    Synthetic Aperture Radar (SAR) measures radar soundings from a set of locations typically along the flight path of a radar platform vehicle. Optimal focusing requires precise knowledge of the sounding source locations in 3 - D space with respect to the target scene. Even data driven focusing techniques (i.e. autofocus) requires some degree of initial fidelity in the measurements of the motion of the radar. These requirements may be quite stringent especially for fine resolution, long ranges, and low velocities. The principal instrument for measuring motion is typically an Inertial Measurement Unit (IMU), but these instruments have inherent limi ted precision and accuracy. The question is %22How good does an IMU need to be for a SAR across its performance space?%22 This report analytically relates IMU specifications to parametric requirements for SAR. - 4 - Acknowledgements Th e preparation of this report is the result of a n unfunded research and development activity . Although this report is an independent effort, it draws heavily from limited - release documentation generated under a CRADA with General Atomics - Aeronautical System, Inc. (GA - ASI), and under the Joint DoD/DOE Munitions Program Memorandum of Understanding. Sandia National Laboratories is a multi - program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of En ergy's National Nuclear Security Administration under contract DE - AC04 - 94AL85000.

  19. Computational optimization of synthetic water channels.

    SciTech Connect (OSTI)

    Rogers, David Michael; Rempe, Susan L. B.

    2012-12-01

    Membranes for liquid and gas separations and ion transport are critical to water purification, osmotic energy generation, fuel cells, batteries, supercapacitors, and catalysis. Often these membranes lack pore uniformity and robustness under operating conditions, which can lead to a decrease in performance. The lack of uniformity means that many pores are non-functional. Traditional membranes overcome these limitations by using thick membrane materials that impede transport and selectivity, which results in decreased performance and increased operating costs. For example, limitations in membrane performance demand high applied pressures to deionize water using reverse osmosis. In contrast, cellular membranes combine high flux and selective transport using membrane-bound protein channels operating at small pressure differences. Pore size and chemistry in the cellular channels is defined uniformly and with sub-nanometer precision through protein folding. The thickness of these cellular membranes is limited to that of the cellular membrane bilayer, about 4 nm thick, which enhances transport. Pores in the cellular membranes are robust under operating conditions in the body. Recent efforts to mimic cellular water channels for efficient water deionization produced a significant advance in membrane function. The novel biomimetic design achieved a 10-fold increase in membrane permeability to water flow compared to commercial membranes and still maintained high salt rejection. Despite this success, there is a lack of understanding about why this membrane performs so well. To address this lack of knowledge, we used highperformance computing to interrogate the structural and chemical environments experienced by water and electrolytes in the newly created biomimetic membranes. We also compared the solvation environments between the biomimetic membrane and cellular water channels. These results will help inform future efforts to optimize and tune the performance of synthetic biomimetic membranes for applications in water purification, energy, and catalysis.

  20. Synthetic muscle experiment will likely return to Earth in March |

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

    Princeton Plasma Physics Lab Synthetic muscle experiment will likely return to Earth in March By Jeanne Jackson DeVoe October 26, 2015 Tweet Widget Google Plus One Share on Facebook A photo taken by Astronaut Scott Kelly of a sample of the synthetic muscle experiment floating in the International Space Station. (Photo by Scott Kelly, Courtesy of NASA ) A photo taken by Astronaut Scott Kelly of a sample of the synthetic muscle experiment floating in the International Space Station. Gallery: A

  1. Synthetic muscle developed with PPPL scientists' help launches | Princeton

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

    Plasma Physics Lab muscle developed with PPPL scientists' help launches By Jeanne Jackson DeVoe April 8, 2015 Tweet Widget Google Plus One Share on Facebook Lenore Rasmussen examines a titanium coupon used in her synthetic muscle being treated in an oxygen plasma at PPPL. (Photo by Elle Starkman/PPPL Office of Communications) Lenore Rasmussen examines a titanium coupon used in her synthetic muscle being treated in an oxygen plasma at PPPL. Gallery: Lenore Rasmussen was one of several

  2. Synthetic muscle developed with PPPL scientists' help ready for launch |

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

    Princeton Plasma Physics Lab Synthetic muscle developed with PPPL scientists' help ready for launch By Jeanne Jackson DeVoe April 8, 2015 Tweet Widget Google Plus One Share on Facebook Gallery: The Dragon spacecraft in orbit. Photo courtesy of NASA) (Photo by Photo courtesy of NASA) The Dragon spacecraft in orbit. Photo courtesy of NASA) The synthetic muscle material before it was packed for transport to the International Space Station. ( Photo courtesy of NASA ) (Photo by Photo courtesy of

  3. Copy of Synthetic Biology of Novel Thermophilic Bacteria for Enhanced

    Office of Scientific and Technical Information (OSTI)

    Production of Ethanol from 5-Carbon Sugars (LDRD %23 105944). (Conference) | SciTech Connect Copy of Synthetic Biology of Novel Thermophilic Bacteria for Enhanced Production of Ethanol from 5-Carbon Sugars (LDRD %23 105944). Citation Details In-Document Search Title: Copy of Synthetic Biology of Novel Thermophilic Bacteria for Enhanced Production of Ethanol from 5-Carbon Sugars (LDRD %23 105944). Abstract not provided. Authors: Reichmuth, David ; Kozina, Carol L. ; Sale, Kenneth L. ;

  4. Designer synthetic media for studying microbial-catalyzed biofuel

    Office of Scientific and Technical Information (OSTI)

    production (Journal Article) | SciTech Connect Designer synthetic media for studying microbial-catalyzed biofuel production Citation Details In-Document Search Title: Designer synthetic media for studying microbial-catalyzed biofuel production Background: The fermentation inhibition of yeast or bacteria by lignocellulose-derived degradation products, during hexose/pentose co-fermentation, is a major bottleneck for cost-effective lignocellulosic biorefineries. To engineer microbial strains

  5. Designer synthetic media for studying microbial-catalyzed biofuel

    Office of Scientific and Technical Information (OSTI)

    production (Journal Article) | SciTech Connect Designer synthetic media for studying microbial-catalyzed biofuel production Citation Details In-Document Search Title: Designer synthetic media for studying microbial-catalyzed biofuel production × You are accessing a document from the Department of Energy's (DOE) SciTech Connect. This site is a product of DOE's Office of Scientific and Technical Information (OSTI) and is provided as a public service. Visit OSTI to utilize additional

  6. Development of a removable conformal coating through the synthetic

    Office of Scientific and Technical Information (OSTI)

    incorporation of Diels-Adler thermally reversible adducts into an epoxy resin. (Conference) | SciTech Connect Conference: Development of a removable conformal coating through the synthetic incorporation of Diels-Adler thermally reversible adducts into an epoxy resin. Citation Details In-Document Search Title: Development of a removable conformal coating through the synthetic incorporation of Diels-Adler thermally reversible adducts into an epoxy resin. An epoxy-based conformal coating with a

  7. A hybrid synthetic pathway for butanol production by a hyperthermophilic

    Office of Scientific and Technical Information (OSTI)

    microbe (Journal Article) | SciTech Connect A hybrid synthetic pathway for butanol production by a hyperthermophilic microbe Citation Details In-Document Search Title: A hybrid synthetic pathway for butanol production by a hyperthermophilic microbe Authors: Keller, Matthew W. ; Lipscomb, Gina L. ; Loder, Andrew J. ; Schut, Gerrit J. ; Kelly, Robert M. ; Adams, Michael W.W. Publication Date: 2015-01-01 OSTI Identifier: 1233934 Grant/Contract Number: AR0000081 Type: Publisher's Accepted

  8. Application of Synthetic Diesel Fuels | Department of Energy

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

    Synthetic Diesel Fuels Application of Synthetic Diesel Fuels 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_schaberg.pdf More Documents & Publications Effect of GTL Diesel Fuels on Emissions and Engine Performance The Potential of GTL Diesel to Meet Future Exhaust Emission Limits Performance Characteristics of Coal-to-Liquids (CTL) Diesel in a 50-State Emissions Compliant Passenger Car

  9. Intramolecular hydrogen bonding as a synthetic tool to induce chemical

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

    selectivity in acid catalyzed porphyrin synthesis Intramolecular hydrogen bonding as a synthetic tool to induce chemical selectivity in acid catalyzed porphyrin synthesis Authors: Megiatto, J. D., Patterson, D., Sherman, B. D., Moore, T. A., Gust, D., and Moore, A. L. Title: Intramolecular hydrogen bonding as a synthetic tool to induce chemical selectivity in acid catalyzed porphyrin synthesis Source: Chemical Communications Year: 2012 Volume: 48 Pages: 4558-4560 ABSTRACT: A straightforward

  10. Synthetic Biology of Novel Thermophilic Bacteria for Enhanced Production of

    Office of Scientific and Technical Information (OSTI)

    Ethanol from 5-Carbon Sugars (LDRD %23 105944). (Conference) | SciTech Connect Synthetic Biology of Novel Thermophilic Bacteria for Enhanced Production of Ethanol from 5-Carbon Sugars (LDRD %23 105944). Citation Details In-Document Search Title: Synthetic Biology of Novel Thermophilic Bacteria for Enhanced Production of Ethanol from 5-Carbon Sugars (LDRD %23 105944). Abstract not provided. Authors: Sapra, Rajat ; Reichmuth, David ; Kozina, Carol L. ; Sale, Kenneth L. ; Keasling, Jay ; Tang,

  11. Fuel Cell Lift Trucks: A Grocer's Best Friend | Department of Energy

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

    Lift Trucks: A Grocer's Best Friend Fuel Cell Lift Trucks: A Grocer's Best Friend December 1, 2011 - 3:21pm Addthis Baldor Specialty Foods relies on fuel cell technology from Oorja Protonics to power lift-trucks like the one pictured above, refueling takes less than one minute | Photo Courtesy of Oorja Protonics. Baldor Specialty Foods relies on fuel cell technology from Oorja Protonics to power lift-trucks like the one pictured above, refueling takes less than one minute | Photo Courtesy of

  12. Synthetic environment employing a craft for providing user perspective reference

    DOE Patents [OSTI]

    Maples, Creve (Albuquerque, NM); Peterson, Craig A. (Albuquerque, NM)

    1997-10-21

    A multi-dimensional user oriented synthetic environment system allows application programs to be programmed and accessed with input/output device independent, generic functional commands which are a distillation of the actual functions performed by any application program. A shared memory structure allows the translation of device specific commands to device independent, generic functional commands. Complete flexibility of the mapping of synthetic environment data to the user is thereby allowed. Accordingly, synthetic environment data may be provided to the user on parallel user information processing channels allowing the subcognitive mind to act as a filter, eliminating irrelevant information and allowing the processing of increase amounts of data by the user. The user is further provided with a craft surrounding the user within the synthetic environment, which craft, imparts important visual referential an motion parallax cues, enabling the user to better appreciate distances and directions within the synthetic environment. Display of this craft in close proximity to the user's point of perspective may be accomplished without substantially degrading the image resolution of the displayed portions of the synthetic environment.

  13. Renewables-Friendly Grid Development Strategies. Experience in the United States, Potential Lessons for China

    SciTech Connect (OSTI)

    Hurlbut, David; Zhou, Ella; Porter, Kevin; Arent, Douglas J.

    2015-10-01

    This report aims to help China's reform effort by providing a concise summary of experience in the United States with "renewables-friendly"" grid management, focusing on experiences that might be applicable to China. It focuses on utility-scale renewables and sets aside issues related to distributed generation.

  14. Apparatus, systems, and methods for ultrasound synthetic aperature focusing

    DOE Patents [OSTI]

    Schuster, George J.; Crawford, Susan L.; Doctor, Steven R.; Harris, Robert V.

    2005-04-12

    One form of the present invention is a technique for interrogating a sample with ultrasound which includes: generating ultrasonic energy data corresponding to a volume of a sample and performing a synthetic aperture focusing technique on the ultrasonic energy data. The synthetic aperture focusing technique includes: defining a number of hyperbolic surfaces which extend through the volume at different depths and a corresponding number of multiple element accumulation vectors, performing a focused element calculation procedure for a group of vectors which are representative of the interior of a designated aperture, performing another focused element calculation procedure for vectors corresponding to the boundary of the aperture, and providing an image corresponding to features of the sample in accordance with the synthetic aperture focusing technique.

  15. Kapitza problem for the magnetic moments of synthetic antiferromagnetic systems

    SciTech Connect (OSTI)

    Dzhezherya, Yu. I.; Demishev, K. O.; Korenivskii, V. N.

    2012-08-15

    The dynamics of magnetization in synthetic antiferromagnetic systems with the magnetic dipole coupling in a rapidly oscillating field has been examined. It has been revealed that the system can behave similar to the Kapitza pendulum. It has been shown that an alternating magnetic field can be efficiently used to control the magnetic state of a cell of a synthetic antiferromagnet. Analytical relations have been obtained between the parameters of such an antiferromagnet and an external magnetic field at which certain quasistationary states are implemented.

  16. Dual chain synthetic heparin-binding growth factor analogs

    DOE Patents [OSTI]

    Zamora, Paul O.; Pena, Louis A.; Lin, Xinhua

    2009-10-06

    The invention provides synthetic heparin-binding growth factor analogs having two peptide chains each branched from a branch moiety, such as trifunctional amino acid residues, the branch moieties separated by a first linker of from 3 to about 20 backbone atoms, which peptide chains bind a heparin-binding growth factor receptor and are covalently bound to a non-signaling peptide that includes a heparin-binding domain, preferably by a second linker, which may be a hydrophobic second linker. The synthetic heparin-binding growth factor analogs are useful as pharmaceutical agents, soluble biologics or as surface coatings for medical devices.

  17. Dual chain synthetic heparin-binding growth factor analogs

    DOE Patents [OSTI]

    Zamora, Paul O.; Pena, Louis A.; Lin, Xinhua

    2012-04-24

    The invention provides synthetic heparin-binding growth factor analogs having two peptide chains each branched from a branch moiety, such as trifunctional amino acid residues, the branch moieties separated by a first linker of from 3 to about 20 backbone atoms, which peptide chains bind a heparin-binding growth factor receptor and are covalently bound to a non-signaling peptide that includes a heparin-binding domain, preferably by a second linker, which may be a hydrophobic second linker. The synthetic heparin-binding growth factor analogs are useful as pharmaceutical agents, soluble biologics or as surface coatings for medical devices.

  18. Synthetic aperture design for increased SAR image rate

    DOE Patents [OSTI]

    Bielek, Timothy P.; Thompson, Douglas G.; Walker, Bruce C.

    2009-03-03

    High resolution SAR images of a target scene at near video rates can be produced by using overlapped, but nevertheless, full-size synthetic apertures. The SAR images, which respectively correspond to the apertures, can be analyzed in sequence to permit detection of movement in the target scene.

  19. Synthetic aperture integration (SAI) algorithm for SAR imaging

    DOE Patents [OSTI]

    Chambers, David H; Mast, Jeffrey E; Paglieroni, David W; Beer, N. Reginald

    2013-07-09

    A method and system for detecting the presence of subsurface objects within a medium is provided. In some embodiments, the imaging and detection system operates in a multistatic mode to collect radar return signals generated by an array of transceiver antenna pairs that is positioned across the surface and that travels down the surface. The imaging and detection system pre-processes the return signal to suppress certain undesirable effects. The imaging and detection system then generates synthetic aperture radar images from real aperture radar images generated from the pre-processed return signal. The imaging and detection system then post-processes the synthetic aperture radar images to improve detection of subsurface objects. The imaging and detection system identifies peaks in the energy levels of the post-processed image frame, which indicates the presence of a subsurface object.

  20. Synthetic nanotubes lay foundation for new technology: Artificial pores

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

    mimic key features of natural pores | Argonne National Laboratory Synthetic nanotubes lay foundation for new technology: Artificial pores mimic key features of natural pores By Tona Kunz * July 17, 2012 Tweet EmailPrint Scientists have overcome key design hurdles to expand the potential uses of nanopores and nanotubes. The creation of smart nanotubes with selective mass transport opens up a wider range of applications for water purification, chemical separation and fighting disease.

  1. Pentavalent Uranium Chemistry - Synthetic Pursuit Of A Rare Oxidation State

    SciTech Connect (OSTI)

    Graves, Christopher R; Kiplinger, Jaqueline L

    2009-01-01

    This feature article presents a comprehensive overview of pentavalent uranium systems in non-aqueous solution with a focus on the various synthetic avenues employed to access this unusual and very important oxidation state. Selected characterization data and theoretical aspects are also included. The purpose is to provide a perspective on this rapidly evolving field and identify new possibilities for future developments in pentavalent uranium chemistry.

  2. Synthetic Biology: Engineering, Evolution and Design (SEED) Conference 2014

    SciTech Connect (OSTI)

    Voigt, Christopher

    2014-07-01

    SEED2014 focused on advances in the science and technology emerging from the field of synthetic biology. We broadly define this as technologies that accelerate the process of genetic engineering. It highlighted new tool development, as well as the application of these tools to diverse problems in biotechnology, including therapeutics, industrial chemicals and fuels, natural products, and agriculture. Systems spanned from in vitro experiments and viruses, through diverse bacteria, to eukaryotes (yeast, mammalian cells, plants).

  3. Kinetically tuned dimensional augmentation as a versatile synthetic route

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

    towards robust metal-organic frameworks | Center for Gas SeparationsRelevant to Clean Energy Technologies | Blandine Jerome Kinetically tuned dimensional augmentation as a versatile synthetic route towards robust metal-organic frameworks Previous Next List Dawei Feng, Kecheng Wang, Zhangwen Wei, Ying-Pin Chen, Cory M. Simon, Ravi K. Arvapally, Richard L. Martin, Mathieu Bosch, Tian-Fu Liu, Stephen Fordham, Daqiang Yuan, Mohammad A. Omary, Maciej Haranczyk, Berend Smit & Hong-Cai Zhou,

  4. Sandia National Laboratories: Pathfinder Airborne ISR and Synthetic

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

    Aperture Radar (SAR) Systems Pathfinder Airborne ISR Systems What is SAR? Areas of Expertise Images VideoSAR Publications Facebook Twitter YouTube Flickr RSS Pathfinder Airborne ISR Systems Pathfinder Airborne ISR and Synthetic Aperture Radar (SAR) Systems Tactical Eyes for the Warfighter Tactical Eyes for the Warfighter Actionable Intelligence for the Decision Maker Actionable Intelligence for the Decision Maker All Weather, Persistent, Optical Like All Weather, Persistent, Optical Like

  5. CO2 Removal using a Synthetic Analogue of Carbonic Anhydrase

    SciTech Connect (OSTI)

    Harry Cordatos

    2010-09-14

    Project attempts to develop a synthetic analogue for carbonic anhydrase and incorporate it in a membrane for separation of CO2 from coal power plant flue gas. Conference poster presents result of first 9 months of project progress including concept, basic system architecture and membrane properties target, results of molecular modeling for analogue - CO2 interaction, and next steps of testing analogue resistance to flue gas contaminants.

  6. Method and apparatus for removing heat from electronic devices using synthetic jets

    DOE Patents [OSTI]

    Sharma, Rajdeep; Weaver, Stanton Earl; Seeley, Charles Erklin; Arik, Mehmet; Icoz, Tunc; Wolfe Jr, Charles Franklin; Utturkar, Yogen Vishwas

    2015-12-01

    An apparatus for removing heat comprises a heat sink having a cavity, and a synthetic jet stack comprising at least one synthetic jet mounted within the cavity. At least one rod and at least one engaging structure to provide a rigid positioning of the at least one synthetic jet with respect to the at least one rod. The synthetic jet comprises at least one orifice through which a fluid is ejected.

  7. Method and apparatus for removing heat from electronic devices using synthetic jets

    DOE Patents [OSTI]

    Sharma, Rajdeep; Weaver, Stanton Earl; Seeley, Charles Erklin; Arik, Mehmet; Icoz, Tunc; Wolfe, Jr., Charles Franklin; Utturkar, Yogen Vishwas

    2015-11-24

    An apparatus for removing heat comprises a heat sink having a cavity, and a synthetic jet stack comprising at least one synthetic jet mounted within the cavity. At least one rod and at least one engaging structure to provide a rigid positioning of the at least one synthetic jet with respect to the at least one rod. The synthetic jet comprises at least one orifice through which a fluid is ejected.

  8. Method and apparatus for removing heat from electronic devices using synthetic jets

    DOE Patents [OSTI]

    Sharma, Rajdeep; Weaver, Jr., Stanton Earl; Seeley, Charles Erklin; Arik, Mehmet; Icoz, Tunc; Wolfe, Jr., Charles Franklin; Utturkar, Yogen Vishwas

    2014-04-15

    An apparatus for removing heat comprises a heat sink having a cavity, and a synthetic jet stack comprising at least one synthetic jet mounted within the cavity. At least one rod and at least one engaging structure to provide a rigid positioning of the at least one synthetic jet with respect to the at least one rod. The synthetic jet comprises at least one orifice through which a fluid is ejected.

  9. A Full-Featured User Friendly CO{sub 2}-EOR and Sequestration Planning Software

    SciTech Connect (OSTI)

    Savage, Bill

    2013-11-30

    A Full-Featured, User Friendly CO{sub 2}-EOR and Sequestration Planning Software This project addressed the development of an integrated software solution that includes a graphical user interface, numerical simulation, visualization tools and optimization processes for reservoir simulation modeling of CO{sub 2}-EOR. The objective was to assist the industry in the development of domestic energy resources by expanding the application of CO{sub 2}-EOR technologies, and ultimately to maximize the CO{sub 2} sequestration capacity of the U.S. The software resulted in a field-ready application for the industry to address the current CO{sub 2}-EOR technologies. The software has been made available to the public without restrictions and with user friendly operating documentation and tutorials. The software (executable only) can be downloaded from NITEC’s website at www.nitecllc.com. This integrated solution enables the design, optimization and operation of CO{sub 2}-EOR processes for small and mid-sized operators, who currently cannot afford the expensive, time intensive solutions that the major oil companies enjoy. Based on one estimate, small oil fields comprise 30% of the of total economic resource potential for the application of CO{sub 2}-EOR processes in the U.S. This corresponds to 21.7 billion barrels of incremental, technically recoverable oil using the current “best practices”, and 31.9 billion barrels using “next-generation” CO{sub 2}-EOR techniques. The project included a Case Study of a prospective CO{sub 2}-EOR candidate field in Wyoming by a small independent, Linc Energy Petroleum Wyoming, Inc. NITEC LLC has an established track record of developing innovative and user friendly software. The Principle Investigator is an experienced manager and engineer with expertise in software development, numerical techniques, and GUI applications. Unique, presently-proprietary NITEC technologies have been integrated into this application to further its ease of use and technical functionality.

  10. Advanced Grid-Friendly Controls Demonstration Project for Utility-Scale PV Power Plants

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

    Advanced Grid-Friendly Controls Demonstration Project for Utility-Scale PV Power Plants Vahan Gevorgian and Barbara O'Neill National Renewable Energy Laboratory Technical Report NREL/TP-5D00-65368 January 2016 NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency & Renewable Energy Operated by the Alliance for Sustainable Energy, LLC This report is available at no cost from the National Renewable Energy Laboratory (NREL) at www.nrel.gov/publications.

  11. Method for producing and regenerating a synthetic CO.sub.2 acceptor

    DOE Patents [OSTI]

    Lancet, Michael S. (Pittsburgh, PA); Curran, George P. (Pittsburgh, PA); Gorin, Everett (San Rafael, CA)

    1982-01-01

    A method for producing a synthetic CO.sub.2 acceptor by feeding a mixture of finely divided silica and at least one finely divided calcium compound selected from the group consisting of calcium oxide and calcium carbonate to a fluidized bed; operating the fluidized bed at suitable conditions to produce pellets of synthetic CO.sub.2 acceptor and recovering the pellets of synthetic CO.sub.2 acceptor from the fluidized bed. Optionally, spent synthetic CO.sub.2 acceptor can be charged to the fluidized bed to produce regenerated pellets of synthetic CO.sub.2 acceptor.

  12. Method for producing and regenerating a synthetic CO[sub 2] acceptor

    DOE Patents [OSTI]

    Lancet, M. S.; Curran, G. P.; Gorin, E.

    1982-05-18

    A method is described for producing a synthetic CO[sub 2] acceptor by feeding a mixture of finely divided silica and at least one finely divided calcium compound selected from the group consisting of calcium oxide and calcium carbonate to a fluidized bed; operating the fluidized bed at suitable conditions to produce pellets of synthetic CO[sub 2] acceptor and recovering the pellets of synthetic CO[sub 2] acceptor from the fluidized bed. Optionally, spent synthetic CO[sub 2] acceptor can be charged to the fluidized bed to produce regenerated pellets of synthetic CO[sub 2] acceptor. 1 fig.

  13. Apodized RFI filtering of synthetic aperture radar images

    SciTech Connect (OSTI)

    Doerry, Armin Walter

    2014-02-01

    Fine resolution Synthetic Aperture Radar (SAR) systems necessarily require wide bandwidths that often overlap spectrum utilized by other wireless services. These other emitters pose a source of Radio Frequency Interference (RFI) to the SAR echo signals that degrades SAR image quality. Filtering, or excising, the offending spectral contaminants will mitigate the interference, but at a cost of often degrading the SAR image in other ways, notably by raising offensive sidelobe levels. This report proposes borrowing an idea from nonlinear sidelobe apodization techniques to suppress interference without the attendant increase in sidelobe levels. The simple post-processing technique is termed Apodized RFI Filtering (ARF).

  14. Synthetic aperture radar images with composite azimuth resolution

    DOE Patents [OSTI]

    Bielek, Timothy P; Bickel, Douglas L

    2015-03-31

    A synthetic aperture radar (SAR) image is produced by using all phase histories of a set of phase histories to produce a first pixel array having a first azimuth resolution, and using less than all phase histories of the set to produce a second pixel array having a second azimuth resolution that is coarser than the first azimuth resolution. The first and second pixel arrays are combined to produce a third pixel array defining a desired SAR image that shows distinct shadows of moving objects while preserving detail in stationary background clutter.

  15. Phase correction system for automatic focusing of synthetic aperture radar

    DOE Patents [OSTI]

    Eichel, Paul H. (Albuquerque, NM); Ghiglia, Dennis C. (Placitas, NM); Jakowatz, Jr., Charles V. (Albuquerque, NM)

    1990-01-01

    A phase gradient autofocus system for use in synthetic aperture imaging accurately compensates for arbitrary phase errors in each imaged frame by locating highlighted areas and determining the phase disturbance or image spread associated with each of these highlight areas. An estimate of the image spread for each highlighted area in a line in the case of one dimensional processing or in a sector, in the case of two-dimensional processing, is determined. The phase error is determined using phase gradient processing. The phase error is then removed from the uncorrected image and the process is iteratively performed to substantially eliminate phase errors which can degrade the image.

  16. Suitability of Synthetic Driving Profiles from Traffic Micro-Simulation for Real-World Energy Analysis: Preprint

    SciTech Connect (OSTI)

    Hou, Yunfei; Wood, Eric; Burton, Evan; Gonder, Jeffrey

    2015-10-14

    A shift towards increased levels of driving automation is generally expected to result in improved safety and traffic congestion outcomes. However, little empirical data exists to estimate the impact that automated driving could have on energy consumption and greenhouse gas emissions. In the absence of empirical data on differences between drive cycles from present day vehicles (primarily operated by humans) and future vehicles (partially or fully operated by computers) one approach is to model both situations over identical traffic conditions. Such an exercise requires traffic micro-simulation to not only accurately model vehicle operation under high levels of automation, but also (and potentially more challenging) vehicle operation under present day human drivers. This work seeks to quantify the ability of a commercial traffic micro-simulation program to accurately model real-world drive cycles in vehicles operated primarily by humans in terms of driving speed, acceleration, and simulated fuel economy. Synthetic profiles from models of freeway and arterial facilities near Atlanta, Georgia, are compared to empirical data collected from real-world drivers on the same facilities. Empirical and synthetic drive cycles are then simulated in a powertrain efficiency model to enable comparison on the basis of fuel economy. Synthetic profiles from traffic micro-simulation were found to exhibit low levels of transient behavior relative to the empirical data. Even with these differences, the synthetic and empirical data in this study agree well in terms of driving speed and simulated fuel economy. The differences in transient behavior between simulated and empirical data suggest that larger stochastic contributions in traffic micro-simulation (relative to those present in the traffic micro-simulation tool used in this study) are required to fully capture the arbitrary elements of human driving. Interestingly, the lack of stochastic contributions from models of human drivers in this study did not result in a significant discrepancy between fuel economy simulations based on synthetic and empirical data; a finding with implications on the potential energy efficiency gains of automated vehicle technology.

  17. A versatile synthetic route for the preparation of titanium metal-organic

    Office of Scientific and Technical Information (OSTI)

    frameworks (Journal Article) | SciTech Connect A versatile synthetic route for the preparation of titanium metal-organic frameworks Citation Details In-Document Search Title: A versatile synthetic route for the preparation of titanium metal-organic frameworks Exploitation of new titanium metal-organic frameworks (Ti-MOFs) with high crystallinity has been attracting great attention due to their vast application potential in photocatalysis. Herein a versatile synthetic strategy, namely, High

  18. Time-frequency analysis of synthetic aperture radar signals

    SciTech Connect (OSTI)

    Johnston, B.

    1996-08-01

    Synthetic aperture radar (SAR) has become an important tool for remote sensing of the environment. SAR is a set of digital signal processing algorithms that are used to focus the signal returned to the radar because radar systems in themselves cannot produce the high resolution images required in remote sensing applications. To reconstruct an image, several parameters must be estimated and the quality of output image depends on the degree of accuracy of these parameters. In this thesis, we derive the fundamental SAR algorithms and concentrate on the estimation of one of its critical parameters. We show that the common technique for estimating this particular parameter can sometimes lead to erroneous results and reduced quality images. We also employ time-frequency analysis techniques to examine variations in the radar signals caused by platform motion and show how these results can be used to improve output image quality.

  19. Interpretation of Synthetic Aperture Radar measurements of ocean currents

    SciTech Connect (OSTI)

    Rufenach, C.L.; Shuchman, R.A.; Lyzenga, D.R.

    1983-02-28

    Synthetic Aperture Radar (SAR) experiments hae been performed over the last few years to measure ocean currents inferred from shifts in the Doppler spectral peak. Interpretations of aircraft SAR measurements, when compared with limited surface values, tend to underestimate the currents by about 25%. A theory is developed that modifies the classical Doppler expression showing that the radar measurements are dependent on the radar processor (system) bandwidth and the received signal bandwidth. Measured bandwidths give a correction that increases the inferred current values by about 25%, bringing the measurements into good agreement. This new correction lends credence to the theory and increases the potential for application of SAR systems to future ocean current measurements. SAR measurements should include the determination of processor and signal bandwidths such that this correction can be applied.

  20. Moving receive beam method and apparatus for synthetic aperture radar

    DOE Patents [OSTI]

    Kare, Jordin T. (San Ramon, CA)

    2001-01-01

    A method and apparatus for improving the performance of Synthetic Aperture Radar (SAR) systems by reducing the effect of "edge losses" associated with nonuniform receiver antenna gain. By moving the receiver antenna pattern in synchrony with the apparent motion of the transmitted pulse along the ground, the maximum available receiver antenna gain can be used at all times. Also, the receiver antenna gain for range-ambiguous return signals may be reduced, in some cases, by a large factor. The beam motion can be implemented by real-time adjustment of phase shifters in an electronically-steered phased-array antenna or by electronic switching of feed horns in a reflector antenna system.

  1. CX-010460: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Novel Low Cost Environmentally Friendly Synthetic Approaches toward Core-Shell Structured Micro CX(s) Applied: B3.6 Date: 06/11/2013 Location(s): District of Columbia Offices(s): National Energy Technology Laboratory

  2. CX-010462: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Novel Low Cost Environmentally Friendly Synthetic Approaches toward Core-Shell Structured Micro CX(s) Applied: B3.6 Date: 06/10/2013 Location(s): Ohio Offices(s): National Energy Technology Laboratory

  3. Findings and recommendations of the advisory panel on synthetic fuels. Advisory panel on synthetic fuels. Report for the Committee on Science and Technology, US House of Representatives

    SciTech Connect (OSTI)

    Not Available

    1980-01-01

    In a report to the US House of Representatives Committee on Science and Technology, the Advisory Panel defines the most critical energy problem facing the US: obtaining a sufficient supply of liquid hydrocarbons for transportation fuel and for other applications where substitution would be difficult, costly, and time-consuming. Any substantial contribution from synthetic fuels must involve the use of coal, oil shale, and biomass, with the raw materials coming from as many different regions of the country as possible. The panel makes recommendations regarding (1) the emphasis of the Department of Energy's synthetic-fuel demonstration program, (2) implementation of a synthetic-fuel production program, and (3) mitigation of the environmental and socioeconomic impacts of synthetic-fuel production. The panel specifically maintains that federal assistance to commercial-scale projects should be available on a competitive basis to those organizations willing to take substantial marketing risks.

  4. Photoreactive synthetic regulator of protein function and methods of use thereof

    DOE Patents [OSTI]

    Trauner, Dirk; Isacoff, Ehud Y; Kramer, Richard H; Banghart, Matthew R; Fortin, Doris L; Mourot, Alexandre

    2015-03-31

    The present disclosure provides a photoreactive synthetic regulator of protein function. The present disclosure further provides a light-regulated polypeptide that includes a subject synthetic regulator. Also provided are cells and membranes comprising a subject light-regulated polypeptide. The present disclosure further provides methods of modulating protein function, involving use of light.

  5. Recent Advances on Carbon Nanospheres: Synthetic Routes and Applications

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

    Zhang, Pengfei; Qiao, Zhenan; Dai, Sheng

    2015-04-02

    Carbon-based materials are the most popular material types in both fundamental research and industrial applications, partly because of their well-controlled nano-morphologies. In the past two decades, we have witnessed a number of breakthroughs in carbon research: fullerenes, carbon nanotubes, and more recently graphene. Nowadays, carbon nanospheres are attracting more and more attention worldwide due to their excellent performance in various fields: drug delivery, heterogeneous catalysis, encapsulation of support and electrode materials. Actually, spherical carbon is an old material, whereas controlling carbon spheres in the nanometer range is a recent story. In the past 5 years, it has become possible tomore »precisely control the particle size, surface area, pore size, chemical composition, and dispersity of carbon nanospheres. Toward this end, a number of synthetic strategies are emerging, such as hydrothermal carbonization of biomass-based resources, extended Stöber synthesis, and organic–organic self-assembly via different binding methods. In this feature article, we summarize recent routes for carbon nanospheres and briefly touch on their applications to shed light on the potential of this field. Throughout this article, a special emphasis is placed on the possible modulation of spherical structures at the nanoscale, and we wish to inspire many more designs and applications of carbon nanostructures in the near future.« less

  6. Lynx: A High-Resolution Synthetic Aperture Radar

    SciTech Connect (OSTI)

    Doerry, A.W.; Hensley, W.H.; Pace, F.; Stence, J.; Tsunoda, S.I.; Walker, B.C.; Woodring, M.

    1999-03-08

    Lynx is a high resolution, synthetic aperture radar (SAR) that has been designed and built by Sandia National Laboratories in collaboration with General Atomics (GA). Although Lynx may be operated on a wide variety of manned and unmanned platforms, it is primarily intended to be fielded on unmanned aerial vehicles. In particular, it may be operated on the Predator, I-GNAT, or Prowler II platforms manufactured by GA Aeronautical Systems, Inc. The Lynx production weight is less than 120 lb. and has a slant range of 30 km (in 4 mm/hr rain). It has operator selectable resolution and is capable of 0.1 m resolution in spotlight mode and 0.3 m resolution in stripmap mode. In ground moving target indicator mode, the minimum detectable velocity is 6 knots with a minimum target cross-section of 10 dBsm. In coherent change detection mode, Lynx makes registered, complex image comparisons either of 0.1 m resolution (minimum) spotlight images or of 0.3 m resolution (minimum) strip images. The Lynx user interface features a view manager that allows it to pan and zoom like a video camera. Lynx was developed under corporate finding from GA and will be manufactured by GA for both military and commercial applications. The Lynx system architecture will be presented and some of its unique features will be described. Imagery at the finest resolutions in both spotlight and strip modes have been obtained and will also be presented.

  7. A preliminary user-friendly, digital console for the control room parameters supervision in old-generation Nuclear Plants

    SciTech Connect (OSTI)

    Memmi, F.; Falconi, L.; Cappelli, M.; Palomba, M.; Santoro, E.; Bove, R.; Sepielli, M.

    2012-07-01

    Improvements in the awareness of a system status is an essential requirement to achieve safety in every kind of plant. In particular, in the case of Nuclear Power Plants (NPPs), a progress is crucial to enhance the Human Machine Interface (HMI) in order to optimize monitoring and analyzing processes of NPP operational states. Firstly, as old-fashioned plants are concerned, an upgrading of the whole console instrumentation is desirable in order to replace an analog visualization with a full-digital system. In this work, we present a novel instrument able to interface the control console of a nuclear reactor, developed by using CompactRio, a National Instruments embedded architecture and its dedicated programming language. This real-time industrial controller composed by a real-time processor and FPGA modules has been programmed to visualize the parameters coming from the reactor, and to storage and reproduce significant conditions anytime. This choice has been made on the basis of the FPGA properties: high reliability, determinism, true parallelism and re-configurability, achieved by a simple programming method, based on LabVIEW real-time environment. The system architecture exploits the FPGA capabilities of implementing custom timing and triggering, hardware-based analysis and co-processing, and highest performance control algorithms. Data stored during the supervisory phase can be reproduced by loading data from a measurement file, re-enacting worthwhile operations or conditions. The system has been thought to be used in three different modes, namely Log File Mode, Supervisory Mode and Simulation Mode. The proposed system can be considered as a first step to develop a more complete Decision Support System (DSS): indeed this work is part of a wider project that includes the elaboration of intelligent agents and meta-theory approaches. A synoptic has been created to monitor every kind of action on the plant through an intuitive sight. Furthermore, another important aim of this work is the possibility to have a front panel available on a web interface: CompactRio acts as a remote server and it is accessible on a dedicated LAN. This supervisory system has been tested and validated on the basis of the real control console for the 1-MW TRIGA reactor RC-1 at the ENEA, Casaccia Research Center. In this paper we show some results obtained by recording each variable as the reactor reaches its maximum level of power. The choice of a research reactor for testing the developed system relies on its training and didactic importance for the education of plant operators: in this context a digital instrument can offer a better user-friendly tool for learning and training. It is worthwhile to remark that such a system does not interfere with the console instrumentation, the latter continuing to preserve the total control. (authors)

  8. Designer synthetic media for studying microbial-catalyzed biofuel production

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

    Tang, Xiaoyu; da Costa Sousa, Leonardo; Jin, Mingjie; Chundawat, Shishir; Chambliss, Charles; Lau, Ming W; Xiao, Zeyi; Dale, Bruce E; Balan, Venkatesh

    2015-01-01

    Background: The fermentation inhibition of yeast or bacteria by lignocellulose-derived degradation products, during hexose/pentose co-fermentation, is a major bottleneck for cost-effective lignocellulosic biorefineries. To engineer microbial strains for improved performance, it is critical to understand the mechanisms of inhibition that affect fermentative organisms in the presence of major components of a lignocellulosic hydrolysate. The development of a synthetic lignocellulosic hydrolysate (SH) media with a composition similar to the actual biomass hydrolysate will be an important advancement to facilitate these studies. In this work, we characterized the nutrients and plant-derived decomposition products present in AFEX™ pretreated corn stover hydrolysate (ACH). Themore » SH was formulated based on the ACH composition and was further used to evaluate the inhibitory effects of various families of decomposition products during Saccharomyces cerevisiae 424A (LNH-ST) fermentation. Results: The ACH contained high levels of nitrogenous compounds, notably amides, pyrazines, and imidazoles. In contrast, a relatively low content of furans and aromatic and aliphatic acids were found in the ACH. Though most of the families of decomposition products were inhibitory to xylose fermentation, due to their abundance, the nitrogenous compounds showed the most inhibition. From these compounds, amides (products of the ammonolysis reaction) contributed the most to the reduction of the fermentation performance. However, this result is associated to a concentration effect, as the corresponding carboxylic acids (products of hydrolysis) promoted greater inhibition when present at the same molar concentration as the amides. Due to its complexity, the formulated SH did not perfectly match the fermentation profile of the actual hydrolysate, especially the growth curve. However, the SH formulation was effective for studying the inhibitory effect of various compounds on yeast fermentation. Conclusions: The formulation of SHs is an important advancement for future multi-omics studies and for better understanding the mechanisms of fermentation inhibition in lignocellulosic hydrolysates. The SH formulated in this work was instrumental for defining the most important inhibitors in the ACH. Major AFEX decomposition products are less inhibitory to yeast fermentation than the products of dilute acid or steam explosion pretreatments; thus, ACH is readily fermentable by yeast without any detoxification.« less

  9. Designer synthetic media for studying microbial-catalyzed biofuel production

    SciTech Connect (OSTI)

    Tang, Xiaoyu [Biogas Inst. of Ministry of Agriculture, Chengdu (China); da Costa Sousa, Leonardo [Michigan State Univ., East Lansing, MI (United States); Jin, Mingjie [Michigan State Univ., East Lansing, MI (United States); Chundawat, Shishir [Michigan State Univ., East Lansing, MI (United States); State Univ. of New Jersey, Piscataway, NJ (United States); Chambliss, Charles [Baylor Univ., Waco, TX (United States); Lau, Ming W [Michigan State Univ., East Lansing, MI (United States); Xiao, Zeyi [Sichuan Univ., Chengdu (China); Dale, Bruce E [Michigan State Univ., East Lansing, MI (United States); Balan, Venkatesh [Michigan State Univ., East Lansing, MI (United States)

    2015-01-01

    Background: The fermentation inhibition of yeast or bacteria by lignocellulose-derived degradation products, during hexose/pentose co-fermentation, is a major bottleneck for cost-effective lignocellulosic biorefineries. To engineer microbial strains for improved performance, it is critical to understand the mechanisms of inhibition that affect fermentative organisms in the presence of major components of a lignocellulosic hydrolysate. The development of a synthetic lignocellulosic hydrolysate (SH) media with a composition similar to the actual biomass hydrolysate will be an important advancement to facilitate these studies. In this work, we characterized the nutrients and plant-derived decomposition products present in AFEX™ pretreated corn stover hydrolysate (ACH). The SH was formulated based on the ACH composition and was further used to evaluate the inhibitory effects of various families of decomposition products during Saccharomyces cerevisiae 424A (LNH-ST) fermentation. Results: The ACH contained high levels of nitrogenous compounds, notably amides, pyrazines, and imidazoles. In contrast, a relatively low content of furans and aromatic and aliphatic acids were found in the ACH. Though most of the families of decomposition products were inhibitory to xylose fermentation, due to their abundance, the nitrogenous compounds showed the most inhibition. From these compounds, amides (products of the ammonolysis reaction) contributed the most to the reduction of the fermentation performance. However, this result is associated to a concentration effect, as the corresponding carboxylic acids (products of hydrolysis) promoted greater inhibition when present at the same molar concentration as the amides. Due to its complexity, the formulated SH did not perfectly match the fermentation profile of the actual hydrolysate, especially the growth curve. However, the SH formulation was effective for studying the inhibitory effect of various compounds on yeast fermentation. Conclusions: The formulation of SHs is an important advancement for future multi-omics studies and for better understanding the mechanisms of fermentation inhibition in lignocellulosic hydrolysates. The SH formulated in this work was instrumental for defining the most important inhibitors in the ACH. Major AFEX decomposition products are less inhibitory to yeast fermentation than the products of dilute acid or steam explosion pretreatments; thus, ACH is readily fermentable by yeast without any detoxification.

  10. Synthetic Coal Slag Infiltration into Varying Refractory Materials

    SciTech Connect (OSTI)

    Kaneko, Tetsuya K.; Thomas, Hugh; Bennett, James P.; Sridhar, Seetharaman

    2012-10-01

    The infiltrations of synthetic coal slag into 99%Al{sub 2}O{sub 3}, 85%Al{sub 2}O{sub 3}–15%SiO{sub 2}, and 90%Cr{sub 2}O{sub 3}–10%Al{sub 2}O{sub 3} refractories with a temperature gradient induced along the penetration direction were compared to one another. The infiltrating slag was synthesized with a composition that is representative of an average of the ash contents from U S coal feedstock. Experiments were conducted with a hot-face temperature of 1450°C in a CO/CO{sub 2} atmosphere. Minimal penetration was observed in the 90%Cr{sub 2}O{sub 3}–10%Al{sub 2}O{sub 3} material because interactions between the refractory and the slag produced a protective layer of FeCr{sub 2}O{sub 4}, which impeded slag flow into the bulk of the refractory. After 5 h, the 99%Al{sub 2}O{sub 3} sample exhibited an average penetration of 12.7 mm whereas the 85%Al{sub 2}O{sub 3}–15%SiO{sub 2} sample showed 3.8 mm. Slag infiltrated into the 99%Al{sub 2}O{sub 3} and 85%Al{sub 2}O{sub 3}–15%SiO{sub 2} refractory systems by dissolving the respective refractories' matrix materials, which consist of fine Al{sub 2}O{sub 3} particles and an amorphous alumino-silicate phase. Due to enrichment in SiO{sub 2}, a network-former, infiltration into the 85%Al{sub 2}O{sub 3}–15%SiO{sub 2} system yielded a higher viscosity slag and hence, a shallower penetration depth. The results suggest that slag infiltration can be limited by interactions with the refractory through the formation of either a solid layer that physically impedes fluid flow or a more viscous slag that retards infiltration.

  11. Perpendicular magnetic tunnel junctions with double barrier and single or synthetic antiferromagnetic storage layer

    SciTech Connect (OSTI)

    Cuchet, Léa; Rodmacq, Bernard; Auffret, Stéphane; Sousa, Ricardo C.; Prejbeanu, Ioan L.; Dieny, Bernard

    2015-06-21

    The magnetic properties of double tunnel junctions with perpendicular anisotropy were investigated. Two synthetic antiferromagnetic references are used, while the middle storage magnetic layer can be either a single ferromagnetic or a synthetic antiferromagnetic FeCoB-based layer, with a critical thickness as large as 3.0?nm. Among the different achievable magnetic configurations in zero field, those with either antiparallel references, and single ferromagnetic storage layer, or parallel references, and synthetic antiferromagnetic storage layer, are of particular interest since they allow increasing the efficiency of spin transfer torque writing and the thermal stability of the stored information as compared to single tunnel junctions. The latter configuration can be preferred when stray fields would favour a parallel orientation of the reference layers. In this case, the synthetic antiferromagnetic storage layer is also less sensitive to residual stray fields.

  12. System and method for forming synthetic protein crystals to determine the conformational structure by crystallography

    DOE Patents [OSTI]

    Craig, G.D.; Glass, R.; Rupp, B.

    1997-01-28

    A method is disclosed for forming synthetic crystals of proteins in a carrier fluid by use of the dipole moments of protein macromolecules that self-align in the Helmholtz layer adjacent to an electrode. The voltage gradients of such layers easily exceed 10{sup 6}V/m. The synthetic protein crystals are subjected to x-ray crystallography to determine the conformational structure of the protein involved. 2 figs.

  13. System and method for forming synthetic protein crystals to determine the conformational structure by crystallography

    DOE Patents [OSTI]

    Craig, George D.; Glass, Robert; Rupp, Bernhard

    1997-01-01

    A method for forming synthetic crystals of proteins in a carrier fluid by use of the dipole moments of protein macromolecules that self-align in the Helmholtz layer adjacent to an electrode. The voltage gradients of such layers easily exceed 10.sup.6 V/m. The synthetic protein crystals are subjected to x-ray crystallography to determine the conformational structure of the protein involved.

  14. Lighting system with thermal management system having point contact synthetic jets

    DOE Patents [OSTI]

    Arik, Mehmet; Weaver, Stanton Earl; Kuenzler, Glenn Howard; Wolfe, Jr., Charles Franklin; Sharma, Rajdeep

    2013-12-10

    Lighting system having unique configurations are provided. For instance, the lighting system may include a light source, a thermal management system and driver electronics, each contained within a housing structure. The light source is configured to provide illumination visible through an opening in the housing structure. The thermal management system includes a plurality of synthetic jets. The synthetic jets are arranged within the lighting system such that they are secured at contact points.

  15. Process for gasification using a synthetic CO.sub.2 acceptor

    DOE Patents [OSTI]

    Lancet, Michael S. (Pittsburgh, PA); Curran, George P. (Pittsburgh, PA)

    1980-01-01

    A gasification process is disclosed using a synthetic CO.sub.2 acceptor consisting essentially of at least one compound selected from the group consisting of calcium oxide and calcium carbonate supported in a refractory carrier matrix, the carrier having the general formula Ca.sub.5 (SiO.sub.4).sub.2 CO.sub.3. A method for producing the synthetic CO.sub.2 acceptor is also disclosed.

  16. Synthetic Design Microorganisms for Lignin Fuels and Chemicals Presentation for BETO 2015 Project Peer Review

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

    Synthetic Design Microorganisms for Lignin Fuels and Chemicals 3/26/2015 Synthetic Biology Joshua S. Yuan Associate Professor and Director Texas A&M University This presentation does contain proprietary information 1 Project Goal: Design of Microorganisms for Lignin Fuel * The proposed research aims to address one of the most challenging issues in biofuel production: the utilization of lignin for fungible fuels. * Project Outcome: A viable biological platform for conversion of lignin into

  17. Interactions of Jet Fuels with Nitrile O-Rings: Petroleum-Derived versus Synthetic Fuels

    SciTech Connect (OSTI)

    Gormley, R.J.; Link, D.D.; Baltrus, J.P.; Zandhuis, P.H.

    2008-01-01

    A transition from petroleum-derived jet fuels to blends with Fischer-Tropsch (F-T) fuels, and ultimately fully synthetic hydro-isomerized F-T fuels has raised concern about the fate of plasticizers in nitrile-butadiene rubber o-rings that are contacted by the fuels as this transition occurs. The partitioning of plasticizers and fuel molecules between nitrile o-rings and petroleum-derived, synthetic, and additized-synthetic jet fuels has been measured. Thermal desorption of o-rings soaked in the various jet fuels followed by gas chromatographic analysis with a mass spectrometric detector showed many of the plasticizer and stabilizer compounds were removed from the o-rings regardless of the contact fuel. Fuel molecules were observed to migrate into the o-rings for the petroleum-derived fuel as did both the fuel and additive for a synthetic F-T jet fuel additized with benzyl alcohol, but less for the unadditized synthetic fuel. The specific compounds or classes of compounds involved in the partitioning were identified and a semiquantitative comparison of relative partitioning of the compounds of interest was made. The results provide another step forward in improving the confidence level of using additized, fuIly synthetic jet fuel in the place of petroleum-derived fueL

  18. Interactions of Jet Fuels with Nitrile O-Rings: Petroleum-Derived versus Synthetic Fuels

    SciTech Connect (OSTI)

    Gormley, R.J.; Link, D.D.; Baltrus, J.P.; Zandhuis, P.H.

    2009-01-01

    A transition from petroleum-derived jet fuels to blends with Fischer-Tropsch (F-T) fuels, and ultimately fully synthetic hydro-isomerized F-T fuels has raised concern about the fate of plasticizers in nitrile-butadiene rubber a-rings that are contacted by the fuels as this transition occurs. The partitioning of plasticizers and fuel molecules between nitrile a-rings and petroleum-derived, synthetic, and additized-synthetic jet fuels has been measured. Thermal desorption of o-rings soaked in the various jet fuels followed by gas chromatographic analysis with a mass spectrometric detector showed many of the plasticizer and stabilizer compounds were removed from the o-rings regardless of the contact fuel. Fuel molecules were observed to migrate into the o-rings for the petroleum-derived fuel as did both the fuel and additive for a synthetic F-T jet fuel additized with benzyl alcohol, but less for the unadditized synthetic fuel. The specific compounds or classes of compounds involved in the partitioning were identified and a semiquantitative comparison of relative partitioning of the compounds of interest was made. The results provide another step forward in improving the confidence level of using additized, fully synthetic jet fuel in the place of petroleum-derived fuel.

  19. Procedure for matching synfuel users with potential suppliers. Appendix B. Proposed and ongoing synthetic fuel production projects

    SciTech Connect (OSTI)

    1981-08-07

    To assist the Department of Energy, Office of Fuels Conversion (OFC), in implementing the synthetic fuel exemption under the Powerplant and Industrial Fuel Use Act (FUA) of 1978, Resource Consulting Group, Inc. (RCG), has developed a procedure for matching prospective users and producers of synthetic fuel. The matching procedure, which involves a hierarchical screening process, is designed to assist OFC in: locating a supplier for a firm that wishes to obtain a synthetic fuel exemption; determining whether the fuel supplier proposed by a petitioner is technically and economically capable of meeting the petitioner's needs; and assisting the Synthetic Fuels Corporation or a synthetic fuel supplier in evaluating potential markets for synthetic fuel production. A data base is provided in this appendix on proposed and ongoing synthetic fuel production projects to be used in applying the screening procedure. The data base encompasses a total of 212 projects in the seven production technologies.

  20. The Bottom-Up Approach forThermoelectric Nanocomposites, plusƒ |

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

    Department of Energy The Bottom-Up Approach forThermoelectric Nanocomposites, plusƒ The Bottom-Up Approach forThermoelectric Nanocomposites, plusƒ Contains an overview of the synthetic strategies for preparing bulk nanocomposite TE materials using a two-step bottom-up approach and associated experimental and theoretical results. PDF icon nolas.pdf More Documents & Publications Innovative Nano-structuring Routes for Novel Thermoelectric Materials;Phonon Blocking & DOS Engineering

  1. the Y-12 Times, a newsletter for employees and friends of the Y-12 National Security Complex, March 2012

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

    W H A T ' S I N S I D E Page 2 Employees embrace the VPP culture Page 3 Discipline and rules Page 5 Graham receives several accolades Page 7 Flashback to the 1980s Page 8 Helping others with an Extreme Makeover B&W Technical Services Y-12, LLC, a partnership between Babcock & Wilcox Technical Services Group Inc. and Bechtel National Inc., operates the Y-12 National Security Complex. A newsletter for employees and friends of the Y-12 National Security Complex Managing Editors Amy Alley:

  2. CuCo2O4 ORR/OER Bi-functional catalyst: Influence of synthetic approach on performance

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

    Serov, Alexey; Andersen, Nalin I.; Roy, Aaron J.; Matanovic, Ivana; Artyushkova, Kateryna; Atanassov, Plamen

    2015-02-07

    A series of CuCo2O4 catalysts were synthesized by pore forming, sol-gel, spray pyrolysis and sacrificial support methods. Catalysts were characterized by XRD, SEM, XPS and BET techniques. The electrochemical activity for the oxygen reduction and oxygen evolution reactions (ORR and OER) was evaluated in alkaline media by RRDE. Density Functional Theory was used to identify two different types of active sites responsible for ORR/OER activity of CuCo2O4 and it was found that CuCo2O4 can activate the O-O bond by binding molecular oxygen in bridging positions between Co or Co and Cu atoms. It was found that the sacrificial support methodmore » (SSM) catalyst has the highest performance in both ORR and OER and has the highest content of phase-pure CuCo2O4. It was shown that the presence of CuO significantly decreases the activity in oxygen reduction and oxygen evolution reactions. As a result, the half-wave potential (E1/2) of CuCo2O4-SSM was found as 0.8 V, making this material a state-of-the-art, unsupported oxide catalyst.« less

  3. Systems-Level Synthetic Biology for Advanced Biofuel Production

    SciTech Connect (OSTI)

    Ruffing, Anne; Jensen, Travis J.; Strickland, Lucas Marshall; Meserole, Stephen; Tallant, David

    2015-03-01

    Cyanobacteria have been shown to be capable of producing a variety of advanced biofuels; however, product yields remain well below those necessary for large scale production. New genetic tools and high throughput metabolic engineering techniques are needed to optimize cyanobacterial metabolisms for enhanced biofuel production. Towards this goal, this project advances the development of a multiple promoter replacement technique for systems-level optimization of gene expression in a model cyanobacterial host: Synechococcus sp. PCC 7002. To realize this multiple-target approach, key capabilities were developed, including a high throughput detection method for advanced biofuels, enhanced transformation efficiency, and genetic tools for Synechococcus sp. PCC 7002. Moreover, several additional obstacles were identified for realization of this multiple promoter replacement technique. The techniques and tools developed in this project will help to enable future efforts in the advancement of cyanobacterial biofuels.

  4. Emissions from Buses with DDC 6V92 Engines Using Synthetic Diesel Fuel

    SciTech Connect (OSTI)

    Paul Norton; Keith Vertin; Nigel N. Clark; Donald W. Lyons; Mridul Gautam; Stephen Goguen; James Eberhardt

    1999-05-03

    Synthetic diesel fuel can be made from a variety of feedstocks, including coal, natural gas and biomass. Synthetic diesel fuels can have very low sulfur and aromatic content, and excellent autoignition characteristics. Moreover, synthetic diesel fuels may also economically competitive with California diesel fuel if .roduced in large volumes. Previous engine laboratory and field tests using a heavy-duty chassis dynamometer indicate that synthetic diesel fuel made using the Fischer-Tropsch (F-T) catalytic conversion process is a promising alternative fuel, because it can be used in unmodified diesel engines, and can reduce exhaust emissions substantially. The objective of this study was a preliminary assessment of the emissions from older model transit operated on Mossgas synthetic diesel fuel. The study compared emissions from transit buses operating on Federal no. 2 Diesel fuel, Mossgas synthetic diesel (MGSD), and a 50/50 blend of the two fuels. The buses were equipped with unmodified Detroit Diesel 6V92 2-stroke diesel engines. Six 40-foot buses were tested. Three of the buses had recently rebuilt engines and were equipped with an oxidation catalytic converter. Vehicle emissions measurements were performed using West Virginia University's unique transportable chassis dynamometer. The emissions were measured over the Central Business District (CBD) driving cycle. The buses performed well on both neat and blended MGSD fuel. Three buses without catalytic converters were tested. Compared to their emissions when operating on Federal no. 2 diesel fuel, these buses emitted an average of 5% lower oxides of nitrogen (NOx) and 20% lower particulate matter (PM) when operating on neat MGSD fuel. Catalyst equipped buses emitted an average of 8% lower NOx and 31% lower PM when operating on MGSD than when operating on Federal no. 2 diesel fuel.

  5. Synthetic peptides that cause F-actin bundling and block actin depolymerization

    DOE Patents [OSTI]

    Sederoff, Heike; Huber, Steven C; Larabell, Carolyn A

    2011-10-18

    Synthetic peptides derived from sucrose synthase, and having homology to actin and actin-related proteins, sharing a common motif, useful for causing acting bundling and preventing actin depolymerization. Peptides exhibiting the common motif are described, as well as specific synthetic peptides which caused bundled actin and inhibit actin depolymerization. These peptides can be useful for treating a subject suffering from a disease characterized by cells having neoplastic growth, for anti-cancer therapeutics, delivered to subjects solely, or concomitantly or sequentially with other known cancer therapeutics. These peptides can also be used for stabilizing microfilaments in living cells and inhibiting growth of cells.

  6. MineSeis -- A MATLAB{reg_sign} GUI program to calculate synthetic

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

    seismograms from a linear, multi-shot blast source model (Technical Report) | SciTech Connect MineSeis -- A MATLAB{reg_sign} GUI program to calculate synthetic seismograms from a linear, multi-shot blast source model Citation Details In-Document Search Title: MineSeis -- A MATLAB{reg_sign} GUI program to calculate synthetic seismograms from a linear, multi-shot blast source model × You are accessing a document from the Department of Energy's (DOE) SciTech Connect. This site is a product of

  7. A Versatile Synthetic Route for the Preparation of Titanium Metal-Organic

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

    Frameworks | Center for Gas SeparationsRelevant to Clean Energy Technologies | Blandine Jerome A Versatile Synthetic Route for the Preparation of Titanium Metal-Organic Frameworks Previous Next List Zou, Lanfang; Feng, Dawei; Liu, Tian-Fu; Chen, Ying-Pin; Yuan, Shuai; Wang, Kecheng; Wang, Xuan; Fordham, Stephen; and Zhou, Hong-Cai. A Versatile Synthetic Route for the Preparation of Titanium Metal-Organic Frameworks. Chem. Sci., 7, 1063-1069 (2016). DOI: 10.1039/c5sc03620h

  8. March 15 PSERC Webinar: Synthetic Power Grid Models: What are They. How

    Energy Savers [EERE]

    They're Made, and Why They Matter | Department of Energy March 15 PSERC Webinar: Synthetic Power Grid Models: What are They. How They're Made, and Why They Matter March 15 PSERC Webinar: Synthetic Power Grid Models: What are They. How They're Made, and Why They Matter March 3, 2016 - 11:10am Addthis The DOE-funded Power Systems Engineering Research Center (PSERC) is offering a free public webinar that will address the problems with obtaining data from power grid models, and the inadequacies

  9. Basics of Polar-Format algorithm for processing Synthetic Aperture Radar images.

    SciTech Connect (OSTI)

    Doerry, Armin Walter

    2012-05-01

    The purpose of this report is to provide a background to Synthetic Aperture Radar (SAR) image formation using the Polar Format (PFA) processing algorithm. This is meant to be an aid to those tasked to implement real-time image formation using the Polar Format processing algorithm.

  10. Monoclonal antibodies to synthetic pyrethroids and method for detecting the same

    DOE Patents [OSTI]

    Stanker, Larry H. (Livermore, CA); Vanderlaan, Martin (Danville, CA); Watkins, Bruce E. (Livermore, CA); Van Emon, Jeanette M. (Henderson, NV); Bigbee, Carolyn L. (Livermore, CA)

    1992-01-01

    Methods are described for making specific monoclonal antibodies which may be used in a sensitive immunoassay for detection of synthetic pyrethroids in foods and environmental samples. Appropriate sample preparation and enzyme amplification of the immunoassay for this widely-used class of pesticides permits detection at low levels in laboratory and field tested samples.

  11. Monoclonal antibodies to synthetic pyrethroids and method for detecting the same

    DOE Patents [OSTI]

    Stanker, L.H.; Vanderlaan, M.; Watkins, B.E.; Van Emon, J.M.; Bigbee, C.L.

    1992-04-28

    Methods are described for making specific monoclonal antibodies which may be used in a sensitive immunoassay for detection of synthetic pyrethroids in foods and environmental samples. Appropriate sample preparation and enzyme amplification of the immunoassay for this widely-used class of pesticides permits detection at low levels in laboratory and field tested samples. 6 figs.

  12. U.S. Natural Gas Supplemental Gas - Synthetic Natural Gas (Million Cubic

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Feet) Synthetic Natural Gas (Million Cubic Feet) U.S. Natural Gas Supplemental Gas - Synthetic Natural Gas (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 123,543 128,003 103,025 95,634 78,632 91,074 81,951 67,017 62,021 67,190 1990's 64,073 62,131 69,229 70,051 67,693 65,335 58,637 55,809 57,387 55,938 2000's 51,958 53,693 55,786 55,794 49,976 53,921 56,971 53,788 53,090 55,934 2010's 57,279 53,745 55,032 48,375 51,127 - = No Data

  13. Method for forming a layer of synthetic corrosion products on tubing surfaces

    DOE Patents [OSTI]

    Lane, Michael H. (Clifton Park, NY); Salamon, Eugene J. M. (Clifton Park, NY)

    1996-01-01

    A method is provided for forming a synthetic corrosion product layer on tube surfaces. The method utilizes two dissimilar materials with different coefficients of thermal expansion. An object tube and sacrificial tube are positioned one inside the other such that an annular region is created between the two tubes' surfaces. A slurry of synthetic corrosion products is injected into this annular region and the assembly is heat treated. This heat causes the tubes to expand, the inner tube with the higher coefficient of expansion expanding more than the outer tube, thereby creating internal pressures which consolidate the corrosion products and adhere the corrosion products to the tubing surfaces. The sacrificial tube may then be removed by conventional chemical etching or mechanical methods.

  14. Synthetic Biology for Tailored Enzyme Cocktails Presentation for BETO 2015 Project Peer Review

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

    March 2015 SynTec Synthetic Biology for Tailored Enzyme Cocktails DOE Bioenergy Technologies Office (BETO) 2015 Project Peer Review Biochemical Conversion Sarah Teter Novozymes, Inc This presentation does not contain any proprietary, confidential, or otherwise restricted information NOVOZYMES PRESENTATION 26 Mar 2015 2 ACCELERATE INNOVATION IN ENZYME DISCOVERY REDUCE COSTS FOR PRODUCING CELLULOSIC SUGARS  Deliver a screening platform which can be used to reduce discovery time required for

  15. Synthetic Metabolic Pathways for Bioconversion of Lignin Derivatives to Biofuels Presentation for BETO Project Peer Review

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

    Synthetic Metabolic Pathways for Bioconversion of Lignin Derivatives to Biofuels WBS: 2.3.2.104 March 25, 2015 Technology Area Review: Biochemical Conversion Principal Investigator: Adam M. Guss Organization: Oak Ridge National Laboratory 2 Goal Statement * Goal: Develop microbial biocatalysts to convert lignin-rich streams into value-added products * Relevance: Adding value to the lignin fraction of plant biomass will improve the economics of biorefineries to enable a bioeconomy Fuels +

  16. Synthetic fuels and the environment: an environmental and regulatory impacts analysis

    SciTech Connect (OSTI)

    1980-06-01

    Since July 1979 when DOE/EV-0044 report Environmental Analysis of Synthetic Liquid fuels was published the synthetic fuels program proposals of the Administration have undergone significant modifications. The program year for which the development goal of 1.5 million barrels per day is to be reached has been changed from 1990 to 1995. The program plan is now proposed to have two stages to ensure, among other things, better environmental protection: an initial stage emphasizing applied research and development (R and D), including environmental research, followed by a second stage that would accelerate deployment of those synthetic fuel technologies then judged most ready for rapid deployment and economic operation within the environmental protection requirements. These program changes have significantly expanded the scope of technologies to be considered in this environmental analysis and have increased the likelihood that accelerated environmental R and D efforts will be successful in solving principal environmental and worker safety concerns for most technologies prior to the initiation of the second stage of the accelerated deployment plan. Information is presented under the following section headings: summary; study description; the technologies and their environmental concerns (including, coal liquefaction and gasification, oil shale production, biomass and urban waste conversion); regulatory and institutional analyses; and environmental impacts analysis (including air and water quaility analyses, impacts of carbon dioxide and acid rain, water availability, solid and hazardous wastes, coal mining environmental impacts, transportation issues, community growth and change, and regional impacts). Additional information is presented in seventeen appendixes. (JGB)

  17. Part Mining for Synthetic Biology (2013 DOE JGI Genomics of Energy and Environment 8th Annual User Meeting)

    SciTech Connect (OSTI)

    Voigt, Chris [MIT

    2013-03-01

    Chris Voigt from MIT delivers the opening keynote on "Part Mining for Synthetic Biology" at the 8th Annual Genomics of Energy & Environment Meeting on March 26, 2013 in Walnut Creek, Calif.

  18. Synthetic Biology and the U.S. Biotechnology Regulatory System: Challenges and Options

    SciTech Connect (OSTI)

    Carter, Sarah R.; Rodemeyer, Michael; Garfinkel, Michele S.; Friedman, Robert M

    2014-05-01

    Synthetic Biology and the U.S. Biotechnology Regulatory System: Challenges and Options Sarah R. Carter, Ph.D., J. Craig Venter Institute; Michael Rodemeyer, J.D., University of Virginia; Michele S. Garfinkel, Ph.D., EMBO; Robert M. Friedman, Ph.D., J. Craig Venter Institute In recent years, a range of genetic engineering techniques referred to as “synthetic biology” has significantly expanded the tool kit available to scientists and engineers, providing them with far greater capabilities to engineer organisms than previous techniques allowed. The field of synthetic biology includes the relatively new ability to synthesize long pieces of DNA from chemicals, as well as improved methods for genetic manipulation and design of genetic pathways to achieve more precise control of biological systems. These advances will help usher in a new generation of genetically engineered microbes, plants, and animals. The JCVI Policy Center team, along with researchers at the University of Virginia and EMBO, examined how well the current U.S. regulatory system for genetically engineered products will handle the near-term introduction of organisms engineered using synthetic biology. In particular, the focus was on those organisms intended to be used or grown directly in the environment, outside of a contained facility. The study concludes that the U.S. regulatory agencies have adequate legal authority to address most, but not all, potential environmental, health and safety concerns posed by these organisms. Such near-term products are likely to represent incremental changes rather than a marked departure from previous genetically engineered organisms. However, the study also identified two key challenges for the regulatory system, which are detailed in the report. First, USDA’s authority over genetically engineered plants depends on the use of an older engineering technique that is no longer necessary for many applications. The shift to synthetic biology and other newer genetic engineering techniques will leave many engineered plants without any pre-market regulatory review. Second, the number and diversity of engineered microbes for commercial use will increase in the near future, challenging EPA’s resources, expertise, and perhaps authority to regulate them. For each of these challenges, the report sets out a series of options, including an analysis of the advantages and disadvantages of each option from a variety of perspectives, for policy makers to consider. Policy responses will depend on the trade-offs chosen among competing considerations. This report, funded by the Department of Energy with additional funds from the Alfred P. Sloan Foundation, is the result of a two-year process that included interviews, commissioned background papers, discussions, and two workshops that sought input from a wide range of experts, including U.S. federal agency regulators, legal and science policy experts, representatives from the biotechnology indus¬try, and non-governmental organiza¬tions. This cross-section of views informed this report, but the conclusions are solely those of the authors. An Executive Summary, full Report, and background papers are available at: http://www.jcvi.org/cms/research/projects/synthetic-biology-and-the-us-biotechnology-regulatory-system/overview/

  19. Using dynamic interferometric synthetic aperature radar (InSAR) to image fast-moving surface waves

    DOE Patents [OSTI]

    Vincent, Paul

    2005-06-28

    A new differential technique and system for imaging dynamic (fast moving) surface waves using Dynamic Interferometric Synthetic Aperture Radar (InSAR) is introduced. This differential technique and system can sample the fast-moving surface displacement waves from a plurality of moving platform positions in either a repeat-pass single-antenna or a single-pass mode having a single-antenna dual-phase receiver or having dual physically separate antennas, and reconstruct a plurality of phase differentials from a plurality of platform positions to produce a series of desired interferometric images of the fast moving waves.

  20. Relative performance of rotary and piston engines on synthetic coal-derived gasoline

    SciTech Connect (OSTI)

    Kappos, C.; Rajan, S.

    1989-01-01

    The paper compares the overall power and emissions features and in-cylinder combustion characteristics of a two-rotor Wankel engine and those of a four-cylinder piston engine, with particular reference to thermal efficiency, oxides of nitrogen, unburnt hydrocarbons, exhaust temperature, ignition delay and combustion interval. The study provides insight into the similarities and differences in the mechanisms of pollutant formation and combustion characteristics of rotary and piston engines, while operating on a synthetic coal-derived gasoline. In particular, the shorter ignition delay and longer combustion interval of the rotary engine indicates its suitability for use with lower quality fuels.

  1. Design and Optimization of a Biochemical Production Platform with Biosensor-Guided Synthetic Evolution

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

    3, 2015 DOE BETO Conversion Review Eric J. Steen, Ph.D. Lygos, Inc. DESIGN & OPTIMIZATION OF A BIOCHEMICAL PRODUCTION PLATFORM WITH BIOSENSOR-GUIDED SYNTHETIC EVOLUTION 2 CELLULOSIC SUGARS MALONYL-COA FATTY ACIDS MALONIC ACID § Malonyl-CoA lies on the carbon superhighway in biology § Pathway is compatible with all available, low-cost feedstocks § Malonyl-CoA is basis of fatty acid production (90%+ yields reported) § Malonic acid is an ideal molecule to produce biologically

  2. Correction of motion measurement errors beyond the range resolution of a synthetic aperture radar

    DOE Patents [OSTI]

    Doerry, Armin W. (Albuquerque, NM); Heard, Freddie E. (Albuquerque, NM); Cordaro, J. Thomas (Albuquerque, NM)

    2008-06-24

    Motion measurement errors that extend beyond the range resolution of a synthetic aperture radar (SAR) can be corrected by effectively decreasing the range resolution of the SAR in order to permit measurement of the error. Range profiles can be compared across the slow-time dimension of the input data in order to estimate the error. Once the error has been determined, appropriate frequency and phase correction can be applied to the uncompressed input data, after which range and azimuth compression can be performed to produce a desired SAR image.

  3. Numerical analysis of thermally assisted spin-transfer torque magnetization reversal in synthetic ferrimagnetic free layers

    SciTech Connect (OSTI)

    Shen, J.; Shi, M.; Tanaka, T. Matsuyama, K.

    2015-05-07

    The spin transfer torque magnetization reversal of synthetic ferrimagnetic free layers under pulsed temperature rise was numerically studied by solving the Landau–Lifshitz–Gilbert equation, taking into account the stochastic random fields, the temperature dependence of magnetic parameters, and the spin torque terms. The anti-parallel magnetization configuration was retained at the elevated temperature, due to interlayer dipole coupling. A significant thermal assistance effect, resulting in a 40% reduction in the switching current, was demonstrated during a nanosecond pulsed temperature rise up to 77% of the Curie temperature.

  4. Radar Friendly Blades

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

    Lab Photovoltaic Systems Evaluation Laboratory PV Regional ... Facility Geomechanics and Drilling Labs National ... Health Monitoring Offshore Wind High-Resolution ...

  5. Pedestrian Friendly Outdoor Lighting

    SciTech Connect (OSTI)

    Miller, N. J.; Koltai, R. N.; McGowan, T. K.

    2013-12-01

    The GATEWAY program followed two pedestrian-scale lighting projects that required multiple mockups – one at Stanford University in California and the other at Chautauqua Institution in upstate New York. The report provides insight into pedestrian lighting criteria, how they differ from street and area lighting criteria, and how solid-state lighting can be better applied in pedestrian applications.

  6. Environmentally Friendly Coolant System

    SciTech Connect (OSTI)

    David Jackson Principal Investigator

    2011-11-08

    Energy reduction through the use of the EFCS is most improved by increasing machining productivity. Throughout testing, nearly all machining operations demonstrated less land wear on the tooling when using the EFCS which results in increased tool life. These increases in tool life advance into increased productivity. Increasing productivity reduces cycle times and therefore reduces energy consumption. The average energy savings by using the EFCS in these machining operations with these materials is 9%. The advantage for end milling stays with flood coolant by about 6.6% due to its use of a low pressure pump. Face milling and drilling are both about 17.5% less energy consumption with the EFCS than flood coolant. One additional result of using the EFCS is improved surface finish. Certain machining operations using the EFCS result in a smoother surface finish. Applications where finishing operations are required will be able to take advantage of the improved finish by reducing the time or possibly eliminating completely one or more finishing steps and thereby reduce their energy consumption. Some machining operations on specific materials do not show advantages for the EFCS when compared to flood coolants. More information about these processes will be presented later in the report. A key point to remember though, is that even with equivalent results, the EFCS is replacing petroleum based coolants whose production produces GHG emissions and create unsafe work environments.

  7. Environmentally friendly animal litter

    DOE Patents [OSTI]

    Chett, Boxley; McKelvie, Jessica

    2013-08-20

    A method of making an animal litter that includes geopolymerized ash, wherein, the animal litter is made from a quantity of a pozzolanic ash mixed with a sufficient quantity of water and an alkaline activator to initiate a geopolymerization reaction that forms geopolymerized ash. After the geopolymerized ash is formed, it is dried, broken into particulates, and sieved to a desired size. These geopolymerized ash particulates are used to make a non-clumping or clumping animal litter. Odor control may be accomplished with the addition of a urease inhibitor, pH buffer, an odor eliminating agent, and/or fragrance.

  8. Friends of Berkeley Lab

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

    Map Contact Member Spotlight sp3 Nanocarriers May Carry New Hope for Brain Cancer Therapy Berkeley Lab researchers have developed a new family of nanocarriers, called...

  9. Dear Family and friends,

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

    and environmental engineering. He holds a B.S. in geology from Muenster University in Germany and an M.S. in geology from the Technical University of Berlin, Germany. He edited...

  10. Transformation and Crystallization Energetics of Synthetic and Biogenic Amorphous Calcium Carbonate

    SciTech Connect (OSTI)

    Radha, A. V.; Forbes, Tori Z.; Killian, Christopher E.; Gilbert, P.U.P.A; Navrotsky, Alexandra

    2010-01-01

    Amorphous calcium carbonate (ACC) is a metastable phase often observed during low temperature inorganic synthesis and biomineralization. ACC transforms with aging or heating into a less hydrated form, and with time crystallizes to calcite or aragonite. The energetics of transformation and crystallization of synthetic and biogenic (extracted from California purple sea urchin larval spicules, Strongylocentrotus purpuratus) ACC were studied using isothermal acid solution calorimetry and differential scanning calorimetry. Transformation and crystallization of ACC can follow an energetically downhill sequence: more metastable hydrated ACC ? less metastable hydrated ACC?anhydrous ACC ~ biogenic anhydrous ACC?vaterite ? aragonite ? calcite. In a given reaction sequence, not all these phases need to occur. The transformations involve a series of ordering, dehydration, and crystallization processes, each lowering the enthalpy (and free energy) of the system, with crystallization of the dehydrated amorphous material lowering the enthalpy the most. ACC is much more metastable with respect to calcite than the crystalline polymorphs vaterite or aragonite. The anhydrous ACC is less metastable than the hydrated, implying that the structural reorganization during dehydration is exothermic and irreversible. Dehydrated synthetic and anhydrous biogenic ACC are similar in enthalpy. The transformation sequence observed in biomineralization could be mainly energetically driven; the first phase deposited is hydrated ACC, which then converts to anhydrous ACC, and finally crystallizes to calcite. The initial formation of ACC may be a first step in the precipitation of calcite under a wide variety of conditions, including geological CO? sequestration.

  11. Analysis of Natural Graphite, Synthetic Graphite, and Thermosetting Resin Candidates for Use in Fuel Compact Matrix

    SciTech Connect (OSTI)

    Trammell, Michael P; Pappano, Peter J

    2011-09-01

    The AGR-1 and AGR-2 compacting process involved overcoating TRISO particles and compacting them in a steel die. The overcoating step is the process of applying matrix to the OPyC layer of TRISO particles in a rotating drum in order to build up an overcoat layer of desired thickness. The matrix used in overcoating is a mixture of natural graphite, synthetic graphite, and thermosetting resin in the ratio, by weight, of 64:16:20. A wet mixing process was used for AGR-1 and AGR-2, in that the graphites and resin were mixed in the presence of ethyl alcohol. The goal of the wet mixing process was to 'resinate' the graphite particles, or coat each individual graphite particle with a thin layer of resin. This matrix production process was similar to the German, Chinese, Japanese, and South African methods, which also use various amount of solvent during mixing. See Appendix 1 for information on these countries matrix production techniques. The resin used for AGR-1 and AGR-2 was provided by Hexion, specifically Hexion grade Durite SC1008. Durite SC1008 is a solvated (liquid) resole phenolic resin. A resole resin does not typically have a hardening agent added. The major constituent of SC1008 is phenol, with minor amounts of formaldehyde. Durite SC1008 is high viscosity, so additional ethyl alcohol was added during matrix production in order to reduce its viscosity and enhance graphite particle resination. The current compacting scale up plan departs from a wet mixing process. The matrix production method specified in the scale up plan is a co-grinding jet mill process where powdered phenolic resin and graphite are all fed into a jet mill at the same time. Because of the change in matrix production style, SC1008 cannot be used in the jet milling process because it is a liquid. The jet milling/mixing process requires that a suite of solid or powdered resins be investigated. The synthetic graphite used in AGR-1 and AGR-2 was provided by SGL Carbon, grade KRB2000. KRB2000 is a graphitized petroleum coke. The availability of KRB2000 is perhaps in question, so a replacement synthetic graphite may need to be identified. This report presents data on potential replacements for KRB2000.

  12. Gas-to-liquids synthetic fuels for use in fuel cells : reformability, energy density, and infrastructure compatibility.

    SciTech Connect (OSTI)

    Ahmed, S.; Kopasz, J. P.; Russell, B. J.; Tomlinson, H. L.

    1999-09-08

    The fuel cell has many potential applications, from power sources for electric hybrid vehicles to small power plants for commercial buildings. The choice of fuel will be critical to the pace of its commercialization. This paper reviews the various liquid fuels being considered as an alternative to direct hydrogen gas for the fuel cell application, presents calculations of the hydrogen and carbon dioxide yields from autothermal reforming of candidate liquid fuels, and reports the product gas composition measured from the autothermal reforming of a synthetic fuel in a micro-reactor. The hydrogen yield for a synthetic paraffin fuel produced by a cobalt-based Fischer-Tropsch process was found to be similar to that of retail gasoline. The advantages of the synthetic fuel are that it contains no contaminants that would poison the fuel cell catalyst, is relatively benign to the environment, and could be transported in the existing fuel distribution system.

  13. Cytotoxicity of synthetic cannabinoids on primary neuronal cells of the forebrain: the involvement of cannabinoid CB{sub 1} receptors and apoptotic cell death

    SciTech Connect (OSTI)

    Tomiyama, Ken-ichi; Funada, Masahiko

    2014-01-01

    The abuse of herbal products containing synthetic cannabinoids has become an issue of public concern. The purpose of this paper was to evaluate the acute cytotoxicity of synthetic cannabinoids on mouse brain neuronal cells. Cytotoxicity induced by synthetic cannabinoid (CP-55,940, CP-47,497, CP-47,497-C8, HU-210, JWH-018, JWH-210, AM-2201, and MAM-2201) was examined using forebrain neuronal cultures. These synthetic cannabinoids induced cytotoxicity in the forebrain cultures in a concentration-dependent manner. The cytotoxicity was suppressed by preincubation with the selective CB{sub 1} receptor antagonist AM251, but not with the selective CB{sub 2} receptor antagonist AM630. Furthermore, annexin-V-positive cells were found among the treated forebrain cells. Synthetic cannabinoid treatment induced the activation of caspase-3, and preincubation with a caspase-3 inhibitor significantly suppressed the cytotoxicity. These synthetic cannabinoids induced apoptosis through a caspase-3-dependent mechanism in the forebrain cultures. Our results indicate that the cytotoxicity of synthetic cannabinoids towards primary neuronal cells is mediated by the CB{sub 1} receptor, but not by the CB{sub 2} receptor, and further suggest that caspase cascades may play an important role in the apoptosis induced by these synthetic cannabinoids. In conclusion, excessive synthetic cannabinoid abuse may present a serious acute health concern due to neuronal damage or deficits in the brain. - Highlights: • Synthetic cannabinoids (classical cannabinoids, non-classical cannabinoids, and aminoalkylindole derivatives) induce cytotoxicity in mouse forebrain cultures. • Synthetic cannabinoid-induced cytotoxicity towards forebrain cultures is mediated by the CB{sub 1} receptor, but not by the CB{sub 2} receptor, and involves caspase-dependent apoptosis. • A high concentration of synthetic cannabinoids may be toxic to neuronal cells that express CB{sub 1} receptors.

  14. Environmentally based siting assessment for synthetic-liquid-fuels facilities. Final report

    SciTech Connect (OSTI)

    1980-01-01

    A detailed assessment of the major environmental constraints to siting a synthetic fuels industry and the results of that assessment are used to determine on a regional basis the potential for development of such an industry with minimal environmental conflicts. Secondly, the ability to mitigate some of the constraining impacts through alternative institutional arrangements, especially in areas that are judged to have a low development potential is also assessed. Limitations of the study are delineated, but specifically, the study is limited geographically to well-defined boundaries that include the prime coal and oil shale resource areas. The critical factors used in developing the framework are air quality, water availability, socioeconomic capacity, ecological sensitivity, environmental health, and the management of Federally owned lands. (MCW)

  15. Metabolic engineering of microorganisms for biofuels production: from bugs to synthetic biology to fuels

    SciTech Connect (OSTI)

    Kuk Lee, Sung; Chou, Howard; Ham, Timothy S.; Soon Lee, Taek; Keasling, Jay D.

    2009-12-02

    The ability to generate microorganisms that can produce biofuels similar to petroleum-based transportation fuels would allow the use of existing engines and infrastructure and would save an enormous amount of capital required for replacing the current infrastructure to accommodate biofuels that have properties significantly different from petroleum-based fuels. Several groups have demonstrated the feasibility of manipulating microbes to produce molecules similar to petroleum-derived products, albeit at relatively low productivity (e.g. maximum butanol production is around 20 g/L). For cost-effective production of biofuels, the fuel-producing hosts and pathways must be engineered and optimized. Advances in metabolic engineering and synthetic biology will provide new tools for metabolic engineers to better understand how to rewire the cell in order to create the desired phenotypes for the production of economically viable biofuels.

  16. Synthetic and Thermodynamic Investigations of Ancillary Ligand Influence on Catalytic Organometallic Systems. Final Report

    SciTech Connect (OSTI)

    Nolan, Steven

    2003-03-20

    During the grant period we have been involved in synthesizing and experimentally determining solution enthalpy values associated with partially fluorinated ligands. This has lead to the publication of manuscripts dealing with synthetic, calorimetric and catalytic behavior of partially fluorinated ligands. The collaboration with Los Alamos researchers has lead to the publication of catalytic results in sc CO{sub 2} which have proven very interesting. Furthermore, we have also examined ligands that behave as phosphine mimics. The N-heterocyclic carbenes have been explored as alternatives for tertiary phosphines and have resulted in the design and construction of efficient palladium and nickel system capable of performing C-C and C-N cross coupling reactions. The initial studies in this areas were made possible by exploratory work conducted under the DOE/EPSCoR grant.

  17. Vulnerability reduction study. Coal and synthetics (Section III a). Technical Appendix

    SciTech Connect (OSTI)

    Not Available

    1980-08-01

    This Appendix supports and explains key statements made in the chapter on Coal and Synthetics. The reader will find information and documentation on points that lend themselves to quantification. Evidence is presented that coal supply will not be constrained by production or transportation factors through the 1980s. Any program to increase the direct use of coal in the industrial sector must take into account a number of identifiable difficulties. A deployment schedule for 10 oil shale projects has been developed by the Office of Technology Assessment. This schedule, if adhered to, would result in an initial deployment of an oil shale industry of 400,000 bpd oil equivalent by 1990. In addition, the Appendix provides descriptions of those major elements of Federal legislation that bear directly on coal, notably portions of the Powerplant and Industrial Fuel Use Act of 1978, the Energy Tax Act of 1978, the Energy Security Act of 1980, and the Clean Air Act.

  18. Synthetic Catalysts for CO2 Storage: Catalytic Improvement of Solvent Capture Systems

    SciTech Connect (OSTI)

    None

    2010-08-15

    IMPACCT Project: LLNL is designing a process to pull CO2 out of the exhaust gas of coal-fired power plants so it can be transported, stored, or utilized elsewhere. Human lungs rely on an enzyme known as carbonic anhydrase to help separate CO2 from our blood and tissue as part of the normal breathing process. LLNL is designing a synthetic catalyst with the same function as this enzyme. The catalyst can be used to quickly capture CO2 from coal exhaust, just as the natural enzyme does in our lungs. LLNL is also developing a method of encapsulating chemical solvents in permeable microspheres that will greatly increase the speed of binding of CO2. The goal of the project is an industry-ready chemical vehicle that can withstand the harsh environments found in exhaust gas and enable new, simple process designs requiring less capital investment.

  19. X-ray Moiré deflectometry using synthetic reference images

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

    Stutman, Dan; Valdivia, Maria Pia; Finkenthal, Michael

    2015-06-25

    Moiré fringe deflectometry with grating interferometers is a technique that enables refraction-based x-ray imaging using a single exposure of an object. To obtain the refraction image, the method requires a reference fringe pattern (without the object). Our study shows that, in order to avoid artifacts, the reference pattern must be exactly matched in phase with the object fringe pattern. In experiments, however, it is difficult to produce a perfectly matched reference pattern due to unavoidable interferometer drifts. We present a simple method to obtain matched reference patterns using a phase-scan procedure to generate synthetic Moiré images. As a result, themore » method will enable deflectometric diagnostics of transient phenomena such as laser-produced plasmas and could improve the sensitivity and accuracy of medical phase-contrast imaging.« less

  20. Synthetic fuel aromaticity and staged combustion. First quarterly technical progress report, September 23-December 31, 1980

    SciTech Connect (OSTI)

    Levy, Arthur; Longanbach, James R.; Chan, Lisa K.

    1981-01-28

    Synthetic liquid fuels, otherwise referred to as synfuels or coal-derived liquids, are probably best characterized from a combustion-environmental point of view as low in hydrogen, low in sulfur, high in nitrogen, and high in aromatics. As a consequence two of the more critical problems in synfuel combustion are NO/sub x/ formation and soot formation (and polycyclic organic matter). This program is directed to these two issues. At first hand the solutions to burning synfuels high in aromatics and fuel-bound nitrogen are diametrically opposed, i.e., high temperature and excess air keep soot levels down, low temperatures and vitiated air keep nitrogen oxide levels down. Staged combustion however offers a logical solution to the above. This program separates and analyzes the synfuel combustion problem via its component parts and then puts them together again phenomenologically via the stage combustion process.

  1. Synthetic graph generation for data-intensive HPC benchmarking: Scalability, analysis and real-world application

    SciTech Connect (OSTI)

    Powers, Sarah S.; Lothian, Joshua

    2014-12-01

    The benchmarking effort within the Extreme Scale Systems Center at Oak Ridge National Laboratory seeks to provide High Performance Computing benchmarks and test suites of interest to the DoD sponsor. The work described in this report is a part of the effort focusing on graph generation. A previously developed benchmark, SystemBurn, allows the emulation of a broad spectrum of application behavior profiles within a single framework. To complement this effort, similar capabilities are desired for graph-centric problems. This report described the in-depth analysis of the generated synthetic graphs' properties at a variety of scales using different generator implementations and examines their applicability to replicating real world datasets.

  2. US Synthetic Corp (TRL 4 Component)- The Development of Open, Water Lubricated Polycrystalline Diamond Thrust Bearings for use in Marine Hydrokinetic (MHK) Energy Machines

    Broader source: Energy.gov [DOE]

    US Synthetic Corp (TRL 4 Component) - The Development of Open, Water Lubricated Polycrystalline Diamond Thrust Bearings for use in Marine Hydrokinetic (MHK) Energy Machines

  3. Evaluation of and Suggested Improvements to the WSM6 Microphysics in WRF- ARW Using Synthetic and Observed GOES-13 Imagery

    SciTech Connect (OSTI)

    Grasso, Lewis; Lindsey, Daniel T.; Lim, Kyo-Sun; Clark, Adam; Bikos, Dan; Dembek, Scott R.

    2014-10-01

    Synthetic satellite imagery can be employed to evaluate simulated cloud fields. Past studies have revealed that the Weather Research and Forecasting (WRF) WRF Single-Moment 6-class (WSM6) microphysics in WRF-ARW produces less upper level ice clouds within synthetic images compared to observations. Synthetic Geostationary Operational Environmental Satellite (GOES)-13 imagery at 10.7 ?m of simulated cloud fields from the 4 km National Severe Storms Laboratory (NSSL) WRF-ARW is compared to observed GOES-13 imagery. Histograms suggest that too few points contain upper level simulated ice clouds. In particular, side-by-side examples are shown of synthetic and observed convective anvils. Such images illustrate the lack of anvil cloud associated with convection produced by the NSSL WRF-ARW. A vertical profile of simulated hydrometeors suggests that too much cloud water mass may be converted into graupel mass, effectively reducing the main source of ice mass in a simulated anvil. Further, excessive accretion of ice by snow removes ice from an anvil by precipitation settling. Idealized sensitivity tests reveal that a 50% reduction of the conversion of cloud water mass to graupel and a 50% reduction of the accretion rate of ice by snow results in a significant increase in anvil ice of a simulated storm. Such results provide guidance as to which conversions could be reformulated, in a more physical manner, to increase simulated ice mass in the upper troposphere.

  4. TH-A-BRF-03: Evaluation of Synthetic CTs Generated Using MR-SIM Data

    SciTech Connect (OSTI)

    Kim, J; Glide-Hurst, C; Doemer, A; Wen, N; Chett, I

    2014-06-15

    Purpose: To describe and evaluate a novel algorithm for generating synthetic CT images from MR-SIM data for dose calculations in MR-only treatment planning. Methods: A voxel-based weighted summation method was implemented to generate synthetic CT (synCT) images. MR data were acquired using Philips 1.0T Panorama high-field open MR-SIM. Retrospective patient data from seven prostate patients and one brain patient (three lesions) enrolled in an IRB-approved study were used. 3D T1-weighted fast field echo and 3D T2-weighted turbo spin echo sequences were utilized for all patients. A 3D balanced turbo field echo sequence using spectral presaturation with inversion recovery was acquired for prostate patients, but 3D ultra-short echo time (UTE)-DIXON was instead acquired for the brain patient to amplify bone signal for semi-automatic bone segmentation. Weight optimization was performed using a training subset of patients. HU value differences between planning CT and synCTs were analyzed using mean absolute error (MAE). Original patient CT-based treatment plans were mapped onto synCTs, dose was recalculated using original leaf motion and MU values, and DRRs were generated. Dosevolume metrics and gamma analysis were used for dosimetric evaluation. Results: Average whole-body MAE of synCTs across all patients was 75+12 HU. In prostate cancer patients, average HU difference between planning and synCTs was 0.9±1.0% for soft tissue structures and 4.3±2.5% for bony structures. DRRs were generated from synCTs and qualitatively showed good geometric agreement with planning CT-generated DRRs. D99, mean dose, and maximum dose to CTV calculated using the synCT remained within 1.2% of planning CT-based dose calculations. All gamma analysis evaluated at 2%/2mm dose difference/distance to agreement) pass rates were greater than 95% with an average of 99.9±0.1% for prostate patients and 98.4±2.2% for three brain lesions. Conclusion: SynCTs were generated with clinically acceptable accuracy comparable to planning CTs, enabling dose computations for MR-only simulation. Research supported in part by a grant from Philips HealthCare (Best, Netherlands)

  5. Behavior of Concrete Panels Reinforced with Synthetic Fibers, Mild Steel, and GFRP Composites Subjected to Blasts

    SciTech Connect (OSTI)

    C. P. Pantelides; T. T. Garfield; W. D. Richins; T. K. Larson; J. E. Blakeley

    2012-03-01

    The paper presents experimental data generated for calibrating finite element models to predict the performance of reinforced concrete panels with a wide range of construction details under blast loading. The specimens were 1.2 m square panels constructed using Normal Weight Concrete (NWC) or Fiber Reinforced Concrete (FRC). FRC consisted of macro-synthetic fibers dispersed in NWC. Five types of panels were tested: NWC panels with steel bars; FRC panels without additional reinforcement; FRC panels with steel bars; NWC panels with glass fiber reinforced polymer (GFRP) bars; and NWC panels reinforced with steel bars and external GFRP laminates on both faces. Each panel type was constructed with three thicknesses: 152 mm, 254 mm, and 356 mm. FRC panels with steel bars had the best performance for new construction. NWC panels reinforced with steel bars and external GFRP laminates on both faces had the best performance for strengthening or rehabilitation of existing structures. The performance of NWC panels with GFRP bars was strongly influenced by the bar spacing. The behavior of the panels is classified in terms of damage using immediate occupancy, life safety, and near collapse performance levels. Preliminary dynamic simulations are compared to the experimental results.

  6. Transport of synthetic colloids through single saturated fractures: A literature review

    SciTech Connect (OSTI)

    Reimus, P.W.

    1995-07-01

    Colloids having the same surface charge sign as the bulk of the geologic media in a groundwater system may be able to travel through the system faster than soluble species because they will follow fluid streamlines more closely and they should have less tendency to diffuse into pores or dead spaces in the media than soluble species. Synthetic colloids with uniform, controlled properties may be ideal for serving as {open_quotes}worst-case{close_quotes} tracers that provide lower-bound estimates of contaminant travel times in hydrologic systems. This report discusses a review of the literature pertaining to colloid transport in single saturated natural fractures. After a brief background discussion to put the literature review in perspective, the phenomenon of colloid transport in saturated fractures is divided into three major topics, each of which is reviewed in detail: (1) saturated fluid flow through fractures; (2) colloid transport by convection, diffusion, and force fields; and (3) colloid interactions with surfaces. It is suggested that these phenomena be accounted for in colloid transport models by using (1) lubrication theory to describe water flow through fractures, (2) particle tracking methods to describe colloid transport in fractures, and (3) a kinetic boundary layer approximation to describe colloid interactions with fracture walls. These methods offer better computational efficiency and better experimental accessibility to model parameters than rigorously solving the complete governing equations.

  7. On the detection of crevasses in glacial ice with synthetic-aperture radar.

    SciTech Connect (OSTI)

    Brock, Billy C.

    2010-02-01

    The intent of this study is to provide an analysis of the scattering from a crevasse in Antarctic ice, utilizing a physics-based model for the scattering process. Of primary interest is a crevasse covered with a snow bridge, which makes the crevasse undetectable in visible-light images. It is demonstrated that a crevasse covered with a snow bridge can be visible in synthetic-aperture-radar (SAR) images. The model of the crevasse and snow bridge incorporates a complex dielectric permittivity model for dry snow and ice that takes into account the density profile of the glacier. The surface structure is based on a fractal model that can produce sastrugi-like features found on the surface of Antarctic glaciers. Simulated phase histories, computed with the Shooting and Bouncing Ray (SBR) method, are processed into SAR images. The viability of the SBR method for predicting scattering from a crevasse covered with a snow bridge is demonstrated. Some suggestions for improving the model are given.

  8. A High Resolution, Light-Weight, Synthetic Aperture Radar for UAV Application

    SciTech Connect (OSTI)

    Doerry, A.W.; Hensley, W.H.; Stence, J.; Tsunoda, S.I. Pace, F.; Walker, B,C.; Woodring, M.

    1999-05-27

    (U) Sandia National Laboratories in collaboration with General Atomics (GA) has designed and built a high resolution, light-weight, Ku-band Synthetic Aperture Radar (SAR) known as "Lynx". Although Lynx can be operated on a wide variety of manned and unmanned platforms, its design is optimized for use on medium altitude Unmanned Aerial Vehicles (UAVS). In particular, it can be operated on the Predator, I-GNAT, and Prowler II platforms manufactured by GA. (U) The radar production weight is less than 120 lb and operates within a 3 GHz band from 15.2 GHz to 18.2 GHz with a peak output power of 320 W. Operating range is resolution and mode dependent but can exceed 45 km in adverse weather (4 mm/hr rain). Lynx has operator selectable resolution and is capable of 0.1 m resolution in spotlight mode and 0.3 m resolution in stripmap mode, over substantial depression angles (5 to 60 deg) and squint angles (broadside ±45 deg). Real-time Motion Compensation is implemented to allow high-quality image formation even during vehicle turns and other maneuvers.

  9. The Elephant in the Room: Dealing with Carbon Emissions from Synthetic Transportation Fuels Production

    SciTech Connect (OSTI)

    Parker, Graham B.; Dahowski, Robert T.

    2007-07-11

    Carbon dioxide (CO2), produced by conversion of hydrocarbons to energy, primarily via fossil fuel combustion, is one of the most ubiquitous and significant greenhouse gases (GHGs). Concerns over climate change precipitated by rising atmospheric GHG concentrations have prompted many industrialized nations to begin adopting limits on emissions to inhibit increases in atmospheric CO2 levels. The United Nations Framework Convention on Climate Change states as a key goal the stabilization of atmospheric CO2 at a level that prevents “dangerous anthropogenic interference” with the planet’s climate systems. This will require sharply reducing emissions growth rates in developing nations, and reducing CO2 emissions in the industrialized world to half current rates in the next 50 years. And ultimately, stabilization will require that annual emissions drop to almost zero.Recently, there has been interest in producing synthetic transportation fuels via coal-to-liquids (CTL) production, particularly in countries where there is an abundant supply of domestic coal, including the United States. This paper provides an overview of the current state of CTL technologies and deployment, a discussion of costs and technical requirements for mitigating the CO2 impacts associated with a CTL facility, and the challenges facing the CTL industry as it moves toward maturity.

  10. Large Hybrid Energy Systems for Making Low CO2 Load-Following Power and Synthetic Fuel

    SciTech Connect (OSTI)

    Robert S. Cherry; Richard D. Boardman; Steven Aumeier

    2012-02-01

    Hybrid energy systems using nuclear heat sources can economically produce load-following electrical power by exploiting the surplus generation capacity available at night or seasonally to make synthetic fuel. Vehicle fuel is the only current energy use large enough to absorb all the energy capacity that might be diverted from the power industry, and its ease of storage obviates problems with discontinuous synfuel production. The potential benefits and challenges of synfuels integration are illustrated by the production of methanol from natural gas (as a source of carbon) using steam from a light water nuclear power reactor which is assumed to be available in accord with a year's worth of power demand data. Methanol's synthesis process is easily adapted to using 300 C heat from a light water reactor and this simple compound can be further processed into gasoline, biodiesel, or dimethyl ether, fuels which can be used with the current vehicle fleet. A supplemental feed to the methanol process of natural gas (for energy) allows operation at constant full rate when the nuclear heat is being used to produce electrical power. The higher capital costs of such a system are offset by a lower cost of heat and power production from a large base load type of plant and by reduced costs associated with much lower CO2 emissions. Other less tangible economic benefits of this and similar hybrid systems include better use of natural resource for fuels and greater energy services security from the domestic production of vehicle fuel.

  11. Method and apparatus for reducing range ambiguity in synthetic aperture radar

    DOE Patents [OSTI]

    Kare, Jordin T. (San Ramon, CA)

    1999-10-26

    A modified Synthetic Aperture Radar (SAR) system with reduced sensitivity to range ambiguities, and which uses secondary receiver channels to detect the range ambiguous signals and subtract them from the signal received by the main channel. Both desired and range ambiguous signals are detected by a main receiver and by one or more identical secondary receivers. All receivers are connected to a common antenna with two or more feed systems offset in elevation (e.g., a reflector antenna with multiple feed horns or a phased array with multiple phase shift networks. The secondary receiver output(s) is (are) then subtracted from the main receiver output in such a way as to cancel the ambiguous signals while only slightly attenuating the desired signal and slightly increasing the noise in the main channel, and thus does not significantly affect the desired signal. This subtraction may be done in real time, or the outputs of the receivers may be recorded separately and combined during signal processing.

  12. Calibrating spectral estimation for the LISA Technology Package with multichannel synthetic noise generation

    SciTech Connect (OSTI)

    Ferraioli, Luigi; Hueller, Mauro; Vitale, Stefano; Heinzel, Gerhard; Hewitson, Martin; Monsky, Anneke; Nofrarias, Miquel

    2010-08-15

    The scientific objectives of the LISA Technology Package experiment on board of the LISA Pathfinder mission demand accurate calibration and validation of the data analysis tools in advance of the mission launch. The level of confidence required in the mission outcomes can be reached only by intensively testing the tools on synthetically generated data. A flexible procedure allowing the generation of a cross-correlated stationary noise time series was set up. A multichannel time series with the desired cross-correlation behavior can be generated once a model for a multichannel cross-spectral matrix is provided. The core of the procedure comprises a noise coloring, multichannel filter designed via a frequency-by-frequency eigendecomposition of the model cross-spectral matrix and a subsequent fit in the Z domain. The common problem of initial transients in a filtered time series is solved with a proper initialization of the filter recursion equations. The noise generator performance was tested in a two-dimensional case study of the closed-loop LISA Technology Package dynamics along the two principal degrees of freedom.

  13. CuCo2O4 ORR/OER Bi-functional catalyst: Influence of synthetic approach on performance

    SciTech Connect (OSTI)

    Serov, Alexey; Andersen, Nalin I.; Roy, Aaron J.; Matanovic, Ivana; Artyushkova, Kateryna; Atanassov, Plamen

    2015-02-07

    A series of CuCo2O4 catalysts were synthesized by pore forming, sol-gel, spray pyrolysis and sacrificial support methods. Catalysts were characterized by XRD, SEM, XPS and BET techniques. The electrochemical activity for the oxygen reduction and oxygen evolution reactions (ORR and OER) was evaluated in alkaline media by RRDE. Density Functional Theory was used to identify two different types of active sites responsible for ORR/OER activity of CuCo2O4 and it was found that CuCo2O4 can activate the O-O bond by binding molecular oxygen in bridging positions between Co or Co and Cu atoms. It was found that the sacrificial support method (SSM) catalyst has the highest performance in both ORR and OER and has the highest content of phase-pure CuCo2O4. It was shown that the presence of CuO significantly decreases the activity in oxygen reduction and oxygen evolution reactions. As a result, the half-wave potential (E1/2) of CuCo2O4-SSM was found as 0.8 V, making this material a state-of-the-art, unsupported oxide catalyst.

  14. Final Report: Detection and Characterization of Underground Facilities by Stochastic Inversion and Modeling of Data from the New Generation of Synthetic Aperture Satellites

    SciTech Connect (OSTI)

    Foxall, W; Cunningham, C; Mellors, R; Templeton, D; Dyer, K; White, J

    2012-02-27

    Many clandestine development and production activities can be conducted underground to evade surveillance. The purpose of the study reported here was to develop a technique to detect underground facilities by broad-area search and then to characterize the facilities by inversion of the collected data. This would enable constraints to be placed on the types of activities that would be feasible at each underground site, providing a basis the design of targeted surveillance and analysis for more complete characterization. Excavation of underground cavities causes deformation in the host material and overburden that produces displacements at the ground surface. Such displacements are often measurable by a variety of surveying or geodetic techniques. One measurement technique, Interferometric Synthetic Aperture Radar (InSAR), uses data from satellite-borne (or airborne) synthetic aperture radars (SARs) and so is ideal for detecting and measuring surface displacements in denied access regions. Depending on the radar frequency and the acquisition mode and the surface conditions, displacement maps derived from SAR interferograms can provide millimeter- to centimeter-level measurement accuracy on regional and local scales at spatial resolution of {approx}1-10 m. Relatively low-resolution ({approx}20 m, say) maps covering large regions can be used for broad-area detection, while finer resolutions ({approx}1 m) can be used to image details of displacement fields over targeted small areas. Surface displacements are generally expected to be largest during or a relatively short time after active excavation, but, depending on the material properties, measurable displacement may continue at a decreasing rate for a considerable time after completion. For a given excavated volume in a given geological setting, the amplitude of the surface displacements decreases as the depth of excavation increases, while the area of the discernable displacement pattern increases. Therefore, the ability to detect evidence for an underground facility using InSAR depends on the displacement sensitivity and spatial resolution of the interferogram, as well as on the size and depth of the facility and the time since its completion. The methodology development described in this report focuses on the exploitation of synthetic aperture radar data that are available commercially from a number of satellite missions. Development of the method involves three components: (1) Evaluation of the capability of InSAR to detect and characterize underground facilities ; (2) inversion of InSAR data to infer the location, depth, shape and volume of a subsurface facility; and (3) evaluation and selection of suitable geomechanical forward models to use in the inversion. We adapted LLNL's general-purpose Bayesian Markov Chain-Monte Carlo procedure, the 'Stochastic Engine' (SE), to carry out inversions to characterize subsurface void geometries. The SE performs forward simulations for a large number of trial source models to identify the set of models that are consistent with the observations and prior constraints. The inverse solution produced by this kind of stochastic method is a posterior probability density function (pdf) over alternative models, which forms an appropriate input to risk-based decision analyses to evaluate subsequent response strategies. One major advantage of a stochastic inversion approach is its ability to deal with complex, non-linear forward models employing empirical, analytical or numerical methods. However, while a geomechanical model must incorporate adequate physics to enable sufficiently accurate prediction of surface displacements, it must also be computationally fast enough to render the large number of forward realizations needed in stochastic inversion feasible. This latter requirement prompted us first to investigate computationally efficient empirical relations and closed-form analytical solutions. However, our evaluation revealed severe limitations in the ability of existing empirical and analytical forms to predict deformations from undergro

  15. SB6.0: The 6th International meeting on Synthetic Biology, July 9-11, 2013

    SciTech Connect (OSTI)

    Kahl, Linda J.

    2015-04-23

    The Synthetic Biology conference series (SBx.0) is the preeminent academic meeting in synthetic biology. Organized by the BioBricks Foundation, the SBx.0 conference series brings together leading researchers, students, industry executives, and policy makers from around the world to share, consider, debate, and plan efforts to make biology easier to engineer. Historically held every two years, the SBx.0 conferences are held in alternating locations in the United States, Europe, and Asia to encourage global participation and collaboration so that the ramifications of synthetic biology research and development are most likely to be safe ethical, and beneficial. On 9-11 July 2013, the 6th installment of the synthetic biology conference series (SB6.0) was held on the campus of Imperial College London (http://sb6.biobricks.org). The SB6.0 conference was attended by over 700 people, and many more were able to participate via video digital conference (http://sb6.biobricks.org/digital-conference/). Over the course of three days, the SB6.0 conference agenda included plenary sessions, workshops, and poster presentations covering topics ranging from the infrastructure needs arising when “Systematic Engineering Meets Biological Complexity” and design-led considerations for “Connecting People and Technologies” to discussions on “Engineering Biology for New Materials,” “Assessing Risk and Managing Biocontainment,” and “New Directions for Energy and Sustainability.” The $10,150 grant awarded by the U.S. Department of Energy (DE-SC0010233) to the BioBricks Foundation was used to provide partial reimbursement for the travel expenses of leading researchers from the United States to speak at the SB6.0 conference. A total of $9,450 was used to reimburse U.S. speakers for actual expenses related to the SB6.0 conference, including airfare (economy or coach only), ground transportation, hotel, and registration fees. In addition, $700 of the grant was used to offset direct administrative costs associated with selecting speakers (preparing announcements, evaluating abstract submissions) and handling travel arrangements. Leading U.S. researchers selected to speak at the SB6.0 conference included: Adam Arkin, Ph.D. Division Director of the Physical Biosciences Division at the Lawrence Berkeley National Laboratory and Professor in the Department of Bioengineering at UC Berkeley Jay Keasling, Ph.D. Professor in the Department of Bioengineering at Berkeley, Senior Faculty Scientist and Associate Laboratory Director of the Lawrence Berkeley National Laboratory, and Chief Executive Officer of the Joint BioEnergy Institute. Debra Mathews, Ph.D. Assistant Director for Science Programs for the Johns Hopkins Berman Institute of Bioethics, Assistant Professor in the Department of Pediatrics, and Affiliate Faculty in the McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins School of Medicine. Richard Murray, Ph.D. Thomas E. and Doris Everhart Professor of Control & Dynamical Systems and Bioengineering at Caltech. Sarah Richardson, Ph.D. Distinguished Postdoctoral Fellow in Genomics at the Lawrence Berkeley National Laboratory and the Department of Energy Joint Genome Institute. and others (for a complete listing of speakers presenting at the SB6.0 conference see http://sb6.biobricks.org/speakers/) The SB6.0 conference was the largest synthetic biology conference to date, and highlights of the SB6.0 conference have been published in a special issue of ACS Synthetic Biology (http://pubs.acs.org/toc/asbcd6/3/3). The BioBricks Foundation appreciates the support of the U.S. Department of Energy in helping to make this most influential and important conference in the field of synthetic biology a success.

  16. Synthetic Metagenomics: Converting digital information back to Biology (2013 DOE JGI Genomics of Energy and Environment 8th Annual User Meeting)

    SciTech Connect (OSTI)

    Deutsch, Sam [DOE Joint Genome Institute

    2013-03-01

    Sam Deutsch of the DOE JGI on "Synthetic Metagenomics: Converting digital information back to Biology" at the 8th Annual Genomics of Energy & Environment Meeting in Walnut Creek, Calif.

  17. Dartmouth Stellar Evolution Database and the ACS Survey of Galactic Globular Clusters II. Stellar Evolution Tracks, Isochrones, Luminosity Functions, and Synthetic Horizontal-Branch Models

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Dotter, A; Chaboyer, B; Jevremovic, D; Kostov, V; Baron, E; Ferguson, J; Sarajedini, A; Anderson, J

    Web tools are also available at the home page (http://stellar.dartmouth.edu/~models/index.html). These tools allow users to create isochrones and convert them to luminosity functions or create synthetic horizontal branch models.

  18. Utilizing environmental friendly iron as a substitution element in spinel structured cathode materials for safer high energy lithium-ion batteries

    SciTech Connect (OSTI)

    Hu, Enyuan; Bak, Seong -Min; Liu, Yijin; Liu, Jue; Yu, Xiqian; Zhou, Yong -Ning; Zhou, Jigang; Khalifah, Peter; Ariyoshi, Kingo; Nam, Kyung -Wan; Yang, Xiao -Qing

    2015-12-03

    Suppressing oxygen release from lithium ion battery cathodes during heating is a critical issue for the improvement of the battery safety characteristics because oxygen can exothermically react with the flammable electrolyte and cause thermal runaway. Previous studies have shown that oxygen release can be reduced by the migration of transition metal cations from octahedral sites to tetrahedral sites during heating. Such site-preferred migration is determined by the electronic structure of cations. In addition, taking advantage of the unique electronic structure of the environmental friendly Fe, this is selected as substitution element in a high energy density material LiNi0.5Mn1.5O4 to improve the thermal stability. The optimized LiNi0.33Mn1.33Fe0.33O4 material shows significantly improved thermal stability compared with the unsubstituted one, demonstrated by no observed oxygen release at temperatures as high as 500°C. Due to the electrochemical contribution of Fe, the high energy density feature of LiNi0.5Mn1.5O4 is well preserved.

  19. Utilizing environmental friendly iron as a substitution element in spinel structured cathode materials for safer high energy lithium-ion batteries

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

    Hu, Enyuan; Bak, Seong -Min; Liu, Yijin; Liu, Jue; Yu, Xiqian; Zhou, Yong -Ning; Zhou, Jigang; Khalifah, Peter; Ariyoshi, Kingo; Nam, Kyung -Wan; et al

    2015-12-03

    Suppressing oxygen release from lithium ion battery cathodes during heating is a critical issue for the improvement of the battery safety characteristics because oxygen can exothermically react with the flammable electrolyte and cause thermal runaway. Previous studies have shown that oxygen release can be reduced by the migration of transition metal cations from octahedral sites to tetrahedral sites during heating. Such site-preferred migration is determined by the electronic structure of cations. In addition, taking advantage of the unique electronic structure of the environmental friendly Fe, this is selected as substitution element in a high energy density material LiNi0.5Mn1.5O4 to improvemore » the thermal stability. The optimized LiNi0.33Mn1.33Fe0.33O4 material shows significantly improved thermal stability compared with the unsubstituted one, demonstrated by no observed oxygen release at temperatures as high as 500°C. Due to the electrochemical contribution of Fe, the high energy density feature of LiNi0.5Mn1.5O4 is well preserved.« less

  20. An environmental approach

    SciTech Connect (OSTI)

    Geerling, C.

    1996-11-01

    The Shell Petroleum Development Company is operating in southern Nigeria in the delta of the Niger River. This delta covers an area 70,000 square kin of coastal ridge barriers, mangroves, freshwater swamp forest and lowland rain forests. Over the past decades considerable changes has occurred through coastal zone modifications, upstream urban and hydrological infrastructure, deforestation, agriculture, fisheries, industrial development, oil operation, as well as demographic changes. The problems associated with these changes are: (1) over-exploitation of renewable natural resources and breakdown of traditional management structures; (2) impact from industry such as pollution and physical changes, and (3) a perception of lack of social and economic equity. This paper describes approaches to help counteract theses problems.

  1. Approaches to Approved Contractor Lists

    Broader source: Energy.gov [DOE]

    Better Buildings Neighborhood Program Workforce / Business Partners Peer Exchange Call: Approaches to Approved Contractor Lists, Call Slides and Summary, April 25, 2013. This workforce/business partners peer exchange call discussed approaches to approved contractor lists.

  2. Dosimetry of cone-defined stereotactic radiosurgery fields with a commercial synthetic diamond detector

    SciTech Connect (OSTI)

    Morales, Johnny E.; Crowe, Scott B.; Trapp, J. V.; Hill, Robin; Freeman, Nigel

    2014-11-01

    Purpose: Small field x-ray beam dosimetry is difficult due to lack of lateral electronic equilibrium, source occlusion, high dose gradients, and detector volume averaging. Currently, there is no single definitive detector recommended for small field dosimetry. The objective of this work was to evaluate the performance of a new commercial synthetic diamond detector, namely, the PTW 60019 microDiamond, for the dosimetry of small x-ray fields as used in stereotactic radiosurgery (SRS). Methods: Small field sizes were defined by BrainLAB circular cones (4–30 mm diameter) on a Novalis Trilogy linear accelerator and using the 6 MV SRS x-ray beam mode for all measurements. Percentage depth doses (PDDs) were measured and compared to an IBA SFD and a PTW 60012 E diode. Cross profiles were measured and compared to an IBA SFD diode. Field factors, ?{sub Q{sub c{sub l{sub i{sub n,Q{sub m{sub s{sub r}{sup f{sub c}{sub l}{sub i}{sub n},f{sub m}{sub s}{sub r}}}}}}}}}, were calculated by Monte Carlo methods using BEAMnrc and correction factors, k{sub Q{sub c{sub l{sub i{sub n,Q{sub m{sub s{sub r}{sup f{sub c}{sub l}{sub i}{sub n},f{sub m}{sub s}{sub r}}}}}}}}}, were derived for the PTW 60019 microDiamond detector. Results: For the small fields of 4–30 mm diameter, there were dose differences in the PDDs of up to 1.5% when compared to an IBA SFD and PTW 60012 E diode detector. For the cross profile measurements the penumbra values varied, depending upon the orientation of the detector. The field factors, ?{sub Q{sub c{sub l{sub i{sub n,Q{sub m{sub s{sub r}{sup f{sub c}{sub l}{sub i}{sub n},f{sub m}{sub s}{sub r}}}}}}}}}, were calculated for these field diameters at a depth of 1.4 cm in water and they were within 2.7% of published values for a similar linear accelerator. The corrections factors, k{sub Q{sub c{sub l{sub i{sub n,Q{sub m{sub s{sub r}{sup f{sub c}{sub l}{sub i}{sub n},f{sub m}{sub s}{sub r}}}}}}}}}, were derived for the PTW 60019 microDiamond detector. Conclusions: The authors conclude that the new PTW 60019 microDiamond detector is generally suitable for relative dosimetry in small 6 MV SRS beams for a Novalis Trilogy linear equipped with circular cones.

  3. Effects of Water in Synthetic Lubricant Systems and Clathrate Formation: A Literature Search and Review

    SciTech Connect (OSTI)

    Rohatgi, Ngoc Dung T.

    2001-08-08

    An extensive literature search and a confidential survey were critically analyzed to determine the effects of water on the stability of hydrofluorocarbon/synthetic lubricant systems and to identify key areas requiring further investigation. Following are highlights from the analysis: Clathrate hydrates are solid solutions formed when water molecules are linked through hydrogen bonding creating cavities that can enclose various guest molecules from hydrate formers, such as hydrofluorocarbons R-32, R-125, R-134a, R-407C and R-410A. The four methods for preventing clathrate formation were drying the gas, heating it, reducing its pressure, or using inhibitors. The hydrolysis of polyolester lubricants was mostly acid-catalyzed and its reaction rate constant typically followed the Arrhenius equation of an activated process. Hydrolytic stability improved with hindered molecular structures, and with the presence of acid catcher additives and desiccants. Water vapor can effect the adsorption of long-chain fatty acids and the chemistry of formation of protective oxide film. However, these effects on lubrication can be either positive or negative. Fifty to sixty percent of the moisture injected into an air-conditioning system remained in the refrigerant and the rest mixed with the compressor oil. In an automotive air-conditioning system using R-134a, ice would form at 0 C evaporating temperature when the water content in the vapor refrigerant on the low-pressure side was more than 350 ppm. Moisture would cause the embrittlement of polyethylene terephthalate and the hydrolysis of polyesters, but would reduce the effect of amine additives on fluoroelastomer rubbers. The reactions of water with refrigerants and lubricants would cause formicary and large-pit corrosion in copper tubes, as well as copper plating and sludge formation. Moreover, blockage of capillary tubes increased rapidly in the presence of water. Twenty-four companies responded to the survey. From the responses, the water concentrations specified and expected for different refrigerant/lubricant systems varied depending on the products, their capacities and applications, and also on the companies. Among the problems associated with high moisture level, lubricant breakdown was of greatest concern, followed by acid formation, compressor failure and expansion valve sticking. The following research topics are suggested: 1. The air-conditioning and refrigeration industry needs to measure and record the water content and total acid number of the lubricant of newly installed systems as well as operating systems that are shutdown for service or repair. The reason for the shutdown needs to be documented. A database can then be established to correlate water content with type and cause of breakdown. 2. Detailed studies on the distribution of water in refrigeration and air-conditioning systems should be conducted to pinpoint problem areas associated with free water. 3. Research is needed to validate the current theories and mechanisms of formicary corrosion. Corrosion inhibitors need to be developed. 4. The conditions for clathrate formation and decomposition of other alternative refrigerants, such as R-23, R-41, R-116, R-125, R-143a, R-404A and R-507C, and water should be determined to avoid possible problems associated with tube plugging. The mechanism by which water facilitates or hinders lubrication needs to be studied.

  4. Approaching attometer laser vibrometry

    SciTech Connect (OSTI)

    Rembe, Christian; Kadner, Lisa; Giesen, Moritz

    2014-05-27

    The heterodyne two-beam interferometer has been proven to be the optimal solution for laser-Doppler vibrometry regarding accuracy and signal robustness. The theoretical resolution limit for a two-beam interferometer of laser class 3R (up to 5 mW visible measurement-light) is in the regime of a few femtometer per square-root Hertz and well suited to study vibrations in microstructures. However, some new applications of RF-MEM resonators, nanostructures, and surface-nano-defect detection require resolutions beyond that limit. The resolution depends only on the noise and the sensor sensitivity to specimen displacements. The noise is already defined in nowadays systems by the quantum nature of light for a properly designed optical sensor and more light would lead to an inacceptable influence like heating of a very tiny structure. Thus, noise can only be improved by squeezed-light techniques which require a negligible loss of measurement light which is impossible for almost all technical measurement tasks. Thus, improving the sensitivity is the only possible path which could make attometer laser vibrometry possible. Decreasing the measurement wavelength would increase the sensitivity but would also increase the photon shot noise. In this paper, we discuss an approach to increase the sensitivity by assembling an additional mirror between interferometer and specimen to form an optical cavity. A detailed theoretical analysis of this setup is presented and we derive the resolution limit, discuss the main contributions to the uncertainty budget, and show a first experiment proving the sensitivity amplification of our approach.

  5. Separation of americium, curium, and rare earths from high-level wastes by oxalate precipitation: experiments with synthetic waste solutions

    SciTech Connect (OSTI)

    Forsberg, C.W.

    1980-01-01

    The separation of trivalent actinides and rare earths from other fission products in high-level nuclear wastes by oxalate precipitation followed by ion exchange (OPIX) was experimentally investigated using synthetic wastes and a small-scale, continuous-flow oxalic acid precipitation and solid-liquid separation system. Trivalent actinide and rare earth oxalates are relatively insoluble in 0.5 to 1.0 M HNO/sub 3/ whereas other fission product oxalates are not. The continuous-flow system consisted of one or two stirred-tank reactors in series for crystal growth. Oxalic acid and waste solutions were mixed in the first tank, with the product solid-liquid slurry leaving the second tank. Solid-liquid separation was tested by filters and by a gravity settler. The experiments determined the fraction of rare earths precipitated and separated from synthetic waste streams as a function of number of reactors, system temperature, oxalic acid concentration, liquid residence time in the process, power input to the stirred-tank reactors, and method of solid-liquid separation. The crystalline precipitate was characterized with respect to form, size, and chemical composition. These experiments are only the first step in converting a proposed chemical flowsheet into a process flowsheet suitable for large-scale remote operations at high activity levels.

  6. Selectivity in ligand binding to uranyl compounds: A synthetic, structural, thermodynamic and computational study

    SciTech Connect (OSTI)

    Arnold, John

    2015-01-21

    The uranyl cation (UO?²?) is the most abundant form of uranium on the planet. It is estimated that 4.5 billion tons of uranium in this form exist in sea water. The ability to bind and extract the uranyl cation from aqueous solution while separating it from other elements would provide a limitless source of nuclear fuel. A large body of research concerns the selective recognition and extraction of uranyl. A stable molecule, the cation has a linear O=U=O geometry. The short U-O bonds (1.78 Å) arise from the combination of uranium 5f/6d and oxygen 2p orbitals. Due to the oxygen moieties being multiply bonded, these sites were not thought to be basic enough for Lewis acidic coordination to be a viable approach to sequestration.

  7. Human immunodeficiency virus contains an epitope immunoreactive with thymosin. cap alpha. /sub 1/ and the 30-amino acid synthetic p17 group-specific antigen peptide HGP-30

    SciTech Connect (OSTI)

    Naylor, P.H.; Naylor, C.W.; Badamchian, M.; Wada, S.; Goldstein, A.L.; Wang, S.S.; Sun, D.K.; Thornton, A.H.; Sarin, P.S.

    1987-05-01

    The authors have reported that an antiserum prepared against thymosin ..cap alpha../sub 1/ (which shares a region of homology with the p17 protein of the acquired immunodeficiency syndrome (AIDS)-associated human immunodeficiency virus) effectively neutralized the AIDs virus and prevented its replication in H9 cells. Using HPLC and immunoblot analysis, they have identified from a clone B, type III human T-lymphotropic virus (HTLV-IIIB) extracts a protein with a molecular weight of 17,000 that is immunoreactive with thymosin ..cap alpha../sub 1/. In contrast, no immunoreactivity was found in retroviral extracts from a number of nonhuman species including feline, bovine, simian, gibbon, and murine retroviruses. Heterologous antiserum prepared against a 30-amino acid synthetic peptide analogue (HGP-30) does not cross-react with thymosin ..cap alpha../sub 1/ but does react specifically with the p17 protein of the AIDS virus in a manner identical to that seen with an HTLV-IIIB p17-specific monoclonal antibody. The demonstration that this synthetic analogue is immunogenic and that antibodies to HGP-30 cross-react not only with synthetic peptide but also with the HTLV-IIIB p17 viral protein provides an additional, and potentially more specific, candidate for development of a synthetic peptide vaccine for AIDS. In addition, the p17 synthetic peptide (HGP-3) may prove to be useful in a diagnostic assay for the detection of AIDS virus infection in seronegative individuals.

  8. approach | netl.doe.gov

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

    Research Approach Research Approach NETL's onsite research approach is based on integrating simulation tools with targeted experimental validation at real-life conditions in the lab and in the field. Simulation tools increase confidence in designs, thereby reducing the risk associated with incorporating multiple innovative technologies, realizing scale-up, and predicting the behavior and properties of real materials. The scientific underpinnings encoded into these models also ensure that

  9. Environmentally-friendly animal litter

    DOE Patents [OSTI]

    Boxley, Chett; McKelvie, Jessica

    2013-09-03

    An animal litter composition that includes geopolymerized ash particulates having a network of repeating aluminum-silicon units is described herein. Generally, the animal litter is made from a quantity of a pozzolanic ash mixed with an alkaline activator to initiate a geopolymerization reaction that forms geopolymerized ash. This geopolymerization reaction may occur within a pelletizer. After the geopolymerized ash is formed, it may be dried and sieved to a desired size. These geopolymerized ash particulates may be used to make a non-clumping or clumping animal litter or other absorbing material. Aluminum sulfate, clinoptilolite, silica gel, sodium alginate and mineral oil may be added as additional ingredients.

  10. Environmentally-friendly animal litter

    DOE Patents [OSTI]

    Boxley, Chett; McKelvie, Jessica

    2012-08-28

    An animal litter composition including geopolymerized ash particulates having a network of repeating aluminum-silicon units is described herein. Generally, the animal litter is made from a quantity of a pozzolanic ash mixed with a sufficient quantity of water and an alkaline activator to initiate a geopolymerization reaction that forms geopolymerized ash. After the geopolymerized ash is formed, it is dried, broken into particulates, and sieved to a desired size. These geopolymerized ash particulates are used to make a non-clumping or clumping animal litter. Odor control is accomplished with the addition of a urease inhibitor, pH buffer, an odor eliminating agent, and/or fragrance.

  11. Whole-House Systems Approach

    Broader source: Energy.gov [DOE]

    A whole-house systems approach considers the house as an energy system with interdependent parts, each of which affects the performance of the entire system.

  12. A sequential partly iterative approach for multicomponent reactive transport with CORE2D

    SciTech Connect (OSTI)

    Samper, J.; Xu, T.; Yang, C.

    2008-11-01

    CORE{sup 2D} V4 is a finite element code for modeling partly or fully saturated water flow, heat transport and multicomponent reactive solute transport under both local chemical equilibrium and kinetic conditions. It can handle coupled microbial processes and geochemical reactions such as acid-base, aqueous complexation, redox, mineral dissolution/precipitation, gas dissolution/exsolution, ion exchange, sorption via linear and nonlinear isotherms, sorption via surface complexation. Hydraulic parameters may change due to mineral precipitation/dissolution reactions. Coupled transport and chemical equations are solved by using sequential iterative approaches. A sequential partly-iterative approach (SPIA) is presented which improves the accuracy of the traditional sequential noniterative approach (SNIA) and is more efficient than the general sequential iterative approach (SIA). While SNIA leads to a substantial saving of computing time, it introduces numerical errors which are especially large for cation exchange reactions. SPIA improves the efficiency of SIA because the iteration between transport and chemical equations is only performed in nodes with a large mass transfer between solid and liquid phases. The efficiency and accuracy of SPIA are compared to those of SIA and SNIA using synthetic examples and a case study of reactive transport through the Llobregat Delta aquitard in Spain. SPIA is found to be as accurate as SIA while requiring significantly less CPU time. In addition, SPIA is much more accurate than SNIA with only a minor increase in computing time. A further enhancement of the efficiency of SPIA is achieved by improving the efficiency of the Newton-Raphson method used for solving chemical equations. Such an improvement is obtained by working with increments of log-concentrations and ignoring the terms of the Jacobian matrix containing derivatives of activity coefficients. A proof is given for the symmetry and non-singularity of the Jacobian matrix. Numerical analyses performed with synthetic examples confirm that these modifications improve the efficiency and convergence of the iterative algorithm.

  13. Reservoir monitoring and characterization using satellite geodetic data: Interferometric Synthetic Aperture Radar observations from the Krechba field, Algeria

    SciTech Connect (OSTI)

    Vasco, D.W.; Ferretti, Alessandro; Novali, Fabrizio

    2008-05-01

    Deformation in the material overlying an active reservoir is used to monitor pressure change at depth. A sequence of pressure field estimates, eleven in all, allow us to construct a measure of diffusive travel time throughout the reservoir. The dense distribution of travel time values means that we can construct an exactly linear inverse problem for reservoir flow properties. Application to Interferometric Synthetic Aperture Radar (InSAR) data gathered over a CO{sub 2} injection in Algeria reveals pressure propagation along two northwest trending corridors. An inversion of the travel times indicates the existence of two northwest-trending high permeability zones. The high permeability features trend in the same direction as the regional fault and fracture zones. Model parameter resolution estimates indicate that the features are well resolved.

  14. Single nanopore transport of synthetic and biological polyelectrolytes in three-dimensional hybrid microfluidic/nanofluidic devices

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

    King, Travis L.; Gatimu, Enid N.; Bohn, Paul W.

    2009-01-02

    This paper presents a study of electrokinetic transport in single nanopores integrated into vertically-stacked three-dimensional hybrid microfluidic/nanofluidic structures. In these devices single nanopores, created by focused ion beam (FIB) milling in thin polymer films, provide fluidic connection between two vertically separated, perpendicular microfluidic channels. Experiments address both systems in which the nanoporous membrane is composed of the same (homojunction) or different (heterojunction) polymer as the microfluidic channels. These devices are then used to study the electrokinetic transport properties of synthetic (i.e., polystyrene sulfonate and polyallylamine) and biological (i.e.,DNA) polyelectrolytes across these nanopores. Single nanopore transport of polyelectrolytes across these nanoporesmore » using both electrical current measurements and confocal microscopy. Both optical and electrical measurements indicate that electroosmotic transport is predominant over electrophoresis in single nanopores with d > 180 nm, consistent with results obtained under similar conditions for nanocapillary array membranes.« less

  15. Effects of Measurement Materials and Oxygen Partial Pressure on the Viscosity of synthetic Eastern and Western United States Coal Slags

    SciTech Connect (OSTI)

    Zhu, Jingxi; Tetsuya, Kenneth; Mu, Haoyuan; Bennett, James P.; Sridhar, Seetharaman

    2012-07-01

    The viscosity of the molten ash (slag) resulting from the mineral constituents in carbon feedstock used in slagging gasifiers is critical for controlling the gasification process. The viscosity of two synthetic slags with compositions resembling the mineral impurities in average eastern and western coal feedstock was examined at temperatures from 1300–1500 °C using a rotating bob viscometer. A few combinations of atmospheres and experimental materials were investigated with respect to one another to determine slag viscosity. A CO/CO{sub 2} atmosphere (CO/CO{sub 2} = 1.8, corresponding to a P{sub O{sub 2}} = 10–8 atm) is required to sustain ferrous ions in FeO-containing slags, an environment that is oxidizing to most metals. Iron oxide in the slag prevents usage of Fe parts. In unpurified Ar, the Fe metal surface oxidizes. Using purified argon prevents iron measurement components from oxidation; however, the metallic surfaces act as nucleation sites for the reduction of the Fe oxide in the slag into metallic Fe. Dissolution of ceramic materials into the slag, including Al{sub 2}O{sub 3} and ZrO{sub 2}, occurs in both atmospheres. Therefore, evaluating slag properties in the laboratory is challenging. The measured viscosities of two synthetic slags in this study diverged depending upon material selection. This difference is likely attributable to container/spindle-slag interactions. Viscosity measurements of the eastern coal slag using all ceramic parts agreed best with FactSage prediction above 1350 °C, with an average activation energy of 271.2 kJ. For western coal slag, the dissolution of container/spindle materials was substantial during the measurement, with precipitation of crystalline phase noted. The experimental viscosity data of the western coal slag agreed best with Kalmanovitch prediction above 1350 °C. The activation energy changed dramatically for both data sets of western coal slag, likely indicating the Newtonian-to-non-Newtonian transition.

  16. Optimized Solvent for Energy-Efficient, Environmentally-Friendly Capture of CO{sub 2} at Coal-Fired Power Plants

    SciTech Connect (OSTI)

    Farthing, G. A.; Rimpf, L. M.

    2014-04-30

    The overall goal of this project, as originally proposed, was to optimize the formulation of a novel solvent as a critical enabler for the cost-effective, energy-efficient, environmentally-friendly capture of CO{sub 2} at coal-fired utility plants. Aqueous blends of concentrated piperazine (PZ) with other compounds had been shown to exhibit high rates of CO{sub 2} absorption, low regeneration energy, and other desirable performance characteristics during an earlier 5-year development program conducted by B&W. The specific objective of this project was to identify PZ-based solvent formulations that globally optimize the performance of coal-fired power plants equipped with CO{sub 2} scrubbing systems. While previous solvent development studies have tended to focus on energy consumption and absorber size, important issues to be sure, the current work seeks to explore, understand, and optimize solvent formulation across the full gamut of issues related to commercial application of the technology: capital and operating costs, operability, reliability, environmental, health and safety (EH&S), etc. Work on the project was intended to be performed under four budget periods. The objective of the work in the first budget period has been to identify several candidate formulations of a concentrated PZ-based solvent for detailed characterization and evaluation. Work in the second budget period would generate reliable and comprehensive property and performance data for the identified formulations. Work in the third budget period would quantify the expected performance of the selected formulations in a commercial CO{sub 2} scrubbing process. Finally, work in the fourth budget period would provide a final technology feasibility study and a preliminary technology EH&S assessment. Due to other business priorities, however, B&W has requested that this project be terminated at the end of the first budget period. This document therefore serves as the final report for this project. It is the first volume of the two-volume final report and summarizes Budget Period 1 accomplishments under Tasks 1-5 of the project, including the selection of four solvent formulations for further study.

  17. Discrete Mathematical Approaches to Graph-Based Traffic Analysis

    SciTech Connect (OSTI)

    Joslyn, Cliff A.; Cowley, Wendy E.; Hogan, Emilie A.; Olsen, Bryan K.

    2014-04-01

    Modern cyber defense and anlaytics requires general, formal models of cyber systems. Multi-scale network models are prime candidates for such formalisms, using discrete mathematical methods based in hierarchically-structured directed multigraphs which also include rich sets of labels. An exemplar of an application of such an approach is traffic analysis, that is, observing and analyzing connections between clients, servers, hosts, and actors within IP networks, over time, to identify characteristic or suspicious patterns. Towards that end, NetFlow (or more generically, IPFLOW) data are available from routers and servers which summarize coherent groups of IP packets flowing through the network. In this paper, we consider traffic analysis of Netflow using both basic graph statistics and two new mathematical measures involving labeled degree distributions and time interval overlap measures. We do all of this over the VAST test data set of 96M synthetic Netflow graph edges, against which we can identify characteristic patterns of simulated ground-truth network attacks.

  18. One approach to artificial photosynthesis

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

    Authors: Llansola-Portols, M.J., Palacios, R.E., Kodis, G., Megiatto, J.D., Moore, A.L., Moore, T. A., and Gust, D. Title: One approach to artificial photosynthesis...

  19. Effect of 1-hydroxyethane-1,1-diphosphonic acid (HEDPA) on Partitioning of Np and Pu to Synthetic Boehmite

    SciTech Connect (OSTI)

    Powell, Brian A.; Rao, Linfeng; Nash, Kenneth L.

    2009-05-01

    The effect of 1-hydroxyethane-1,1-diphosphonic acid (HEDPA) on sorption of Np(V) and Pu(V) to synthetic boehmite ({gamma}-AlOOH) was examined a function of time and pH (between 4 to 11). Sorption of both elements in boehmite suspensions (1 M NaCl, 600 mg L{sup -1} boehmite) increased with increasing pH. Sorption edges for neptunium and plutonium occurred at approximately pH 8.0 and 6.6, respectively. After steady state partitioning was reached, HEDPA was added to the neptunium-boehmite and plutonium-boehmite suspensions. Neptunium and plutonium partitioning appears to be primarily affected by the formation of soluble Np:HEDPA and Pu:HEDPA complexes, the dissolution of boehmite promoted by HEDPA, and the precipitation of Np:HEDPA and Pu:HEDPA colloids. The results are discussed in terms of applicability of HEDPA-promoted dissolution as a waste reduction method in the treatment of sludge phases contained within high-level nuclear waste storage tanks.

  20. Systems biology approach to bioremediation

    SciTech Connect (OSTI)

    Chakraborty, R.; Wu, C. H.; Hazen, T. C.

    2012-01-01

    Bioremediation has historically been approached as a ?black box? in terms of our fundamental understanding. Thus it succeeds and fails, seldom without a complete understanding of why. Systems biology is an integrated research approach to study complex biological systems, by investigating interactions and networks at the molecular, cellular, community, and ecosystem level. The knowledge of these interactions within individual components is fundamental to understanding the dynamics of the ecosystem under investigation. Understanding and modeling functional microbial community structure and stress responses in environments at all levels have tremendous implications for our fundamental understanding of hydrobiogeochemical processes and the potential for making bioremediation breakthroughs and illuminating the ?black box?.

  1. PERTURBATION APPROACH FOR QUANTUM COMPUTATION

    SciTech Connect (OSTI)

    G. P. BERMAN; D. I. KAMENEV; V. I. TSIFRINOVICH

    2001-04-01

    We discuss how to simulate errors in the implementation of simple quantum logic operations in a nuclear spin quantum computer with many qubits, using radio-frequency pulses. We verify our perturbation approach using the exact solutions for relatively small (L = 10) number of qubits.

  2. Building America Systems Engineering Approach

    SciTech Connect (OSTI)

    2011-12-15

    The Building America Research Teams use a systems engineering approach to achieve higher quality and energy savings in homes. Using these techniques, the energy consumption of new houses can be reduced by 40% or more with little or no impact on the cost of ownership.

  3. CBEI: Collaborative Approaches for Integrated Energy Retrofits...

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

    Collaborative Approaches for Integrated Energy Retrofits - 2015 Peer Review Presenter: John Messner, PSU View the Presentation PDF icon CBEI: Collaborative Approaches for...

  4. PROJECT PROFILE: Scientific Approach to Reducing Photovoltaic...

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

    PROJECT PROFILE: Scientific Approach to Reducing Photovoltaic Module Material Costs While Increasing Durability PROJECT PROFILE: Scientific Approach to Reducing Photovoltaic Module ...

  5. Synthetic and Mechanistic Chemistry

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

    22(3), 189-198 (2009). Ramesh R. Kale, Harshini Mukundan, Dominique N. Price, J. Foster Harris, Daniel M. Lewallen, Basil I. Swanson, Jurgen G. Schmidt, and Suri S. Iyer,...

  6. Synthetic laser medium

    DOE Patents [OSTI]

    Stokowski, Stanley E. (Danville, CA)

    1989-01-01

    A laser medium is particularly useful in high average power solid state lasers. The laser medium includes a chormium dopant and preferably neodymium ions as codopant, and is primarily a gadolinium scandium gallium garnet, or an analog thereof. Divalent cations inhibit spiral morphology as large boules from which the laser medium is derived are grown, and a source of ions convertible between a trivalent state and a tetravalent state at a low ionization energy are in the laser medium to reduce an absorption coefficient at about one micron wavelength otherwise caused by the divalent cations. These divalent cations and convertible ions are dispersed in the laser medium. Preferred convertible ions are provided from titanium or cerium sources.

  7. Synthetic laser medium

    DOE Patents [OSTI]

    Stokowski, S.E.

    1987-10-20

    A laser medium is particularly useful in high average power solid state lasers. The laser medium includes a chromium dopant and preferably neodymium ions as codopant, and is primarily a gadolinium scandium gallium garnet, or an analog thereof. Divalent cations inhibit spiral morphology as large boules from which the laser medium is derived are grown, and a source of ions convertible between a trivalent state and a tetravalent state at a low ionization energy are in the laser medium to reduce an absorption coefficient at about one micron wavelength otherwise caused by the divalent cations. These divalent cations and convertible ions are dispersed in the laser medium. Preferred convertible ions are provided from titanium or cerium sources.

  8. Cameron synthetic fuels report

    SciTech Connect (OSTI)

    Not Available

    1980-06-01

    The increasing scarcity of conventional crude oil resources, as well as the sharply higher prices of crude oil, will generate increased interest in heavy oil, tar sands, and oil shale as potential substitutes. For all of these unconventional oil resources, extraction will be much more difficult, time consuming, and costly than for conventional crude oil. Although the inplace resources are vast and exist in many areas including the United States, the USSR, western Europe, Canada, and Latin America, probably only a small fraction of the inplace resources will prove to be economically extractable. These unconventional oil resources are now being developed in several locations around the world, and depending upon the exact definition probably account for less than 1 percent of current world oil supplies. The major current developments include: Canadian tar sands. Heavy oil production at Yarega in the Komi Autonomous Republic in the Soviet Union. The USSR also burns shale for power generation in Estonia. Venezuelan production of heavy oil in the Orinoco Heavy Oil Belt is currently about 15,000 b/d. Oil shale is likely to prove much less important than heavy oil and tar sands over the next 20 years. Further development of these unconventional resources is planned, and many projects are under way or under study. On the basis of current planning, world output of heavy oils and oil from tar sands and shale will be unlikely to exceed 2 million b/d by 1990, roughly five time today's level. However, both of these resources will require the development of new technologies for any large increases in output above what is now planned. The bulk of Canada's tar sands exists at great depths and will require the development of in situ processes for extraction. In the Orinoco, heavy metals contained in the oil make it difficult to refine with existing technology.

  9. Imaging synthetic aperture radar

    DOE Patents [OSTI]

    Burns, Bryan L.; Cordaro, J. Thomas

    1997-01-01

    A linear-FM SAR imaging radar method and apparatus to produce a real-time image by first arranging the returned signals into a plurality of subaperture arrays, the columns of each subaperture array having samples of dechirped baseband pulses, and further including a processing of each subaperture array to obtain coarse-resolution in azimuth, then fine-resolution in range, and lastly, to combine the processed subapertures to obtain the final fine-resolution in azimuth. Greater efficiency is achieved because both the transmitted signal and a local oscillator signal mixed with the returned signal can be varied on a pulse-to-pulse basis as a function of radar motion. Moreover, a novel circuit can adjust the sampling location and the A/D sample rate of the combined dechirped baseband signal which greatly reduces processing time and hardware. The processing steps include implementing a window function, stabilizing either a central reference point and/or all other points of a subaperture with respect to doppler frequency and/or range as a function of radar motion, sorting and compressing the signals using a standard fourier transforms. The stabilization of each processing part is accomplished with vector multiplication using waveforms generated as a function of radar motion wherein these waveforms may be synthesized in integrated circuits. Stabilization of range migration as a function of doppler frequency by simple vector multiplication is a particularly useful feature of the invention; as is stabilization of azimuth migration by correcting for spatially varying phase errors prior to the application of an autofocus process.

  10. Synthetic and Mechanistic Chemistry

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

    and catalysts for energy applications and mechanistic chemistry for biofuel production. ... to develop magnetic algae, thus making it much easier to harvest for biofuel production. ...

  11. The synthetic elements

    SciTech Connect (OSTI)

    Hoffman, D.C.

    1990-05-01

    Prior to 1940, the heaviest element known was uranium, discovered in 1789. Since that time the elements 93 through 109 have been synthesized and identified and the elements 43, 61, 85, and 87 which were missing form the periodic tables of the 1930's have been discovered. The techniques and problems involved in these discoveries and the placement of the transuranium elements in the periodic table will be discussed. The production and positive identification of elements heavier than Md (Z=101), which have very short half-lives and can only be produced an atom-at-a-time, are very difficult and there have been controversies concerning their discovery. Some of the new methods which have been developed and used in these studies will be described. The prospects for production of still heavier elements will be considered.

  12. Predicting the performance of system for the co-production of Fischer-Tropsch synthetic liquid and power from coal

    SciTech Connect (OSTI)

    Wang, X.; Xiao, Y.; Xu, S.; Guo, Z.

    2008-01-15

    A co-production system based on Fischer-Tropsch (FT) synthesis reactor and gas turbine was simulated and analyzed. Syngas from entrained bed coal gasification was used as feedstock of the low-temperature slurry phase Fischer-Tropsch reactor. Raw synthetic liquid produced was fractioned and upgraded to diesel, gasoline, and liquid petrol gas (LPG). Tail gas composed of unconverted syngas and FT light components was fed to the gas turbine. Supplemental fuel (NG, or refinery mine gas) might be necessary, which was dependent on gas turbine capacity expander through flow capacity, etc. FT yield information was important to the simulation of this co-production system. A correlation model based on Mobil's two step pilot plant was applied. User models that can predict product yields and cooperate with other units were embedded into Aspen plus simulation. Performance prediction of syngas fired gas turbine was the other key of this system. The increase in mass flow through the turbine affects the match between compressor and turbine operating conditions. The calculation was carried out by GS software developed by Politecnico Di Milano and Princeton University. Various cases were investigated to match the FT synthesis island, power island, and gasification island in co-production systems. Effects of CO{sub 2} removal/LPG recovery, co-firing, and CH{sub 4} content variation were studied. Simulation results indicated that more than 50% of input energy was converted to electricity and FT products. Total yield of gasoline, diesel, and LPG was 136-155 g/N m{sup 3} (CO+H{sub 2}). At coal feed of 21.9 kg/s, net electricity exported to the grid was higher than 100 MW. Total production of diesel and gasoline (and LPG) was 118,000 t (134,000 t)/year. Under the economic analysis conditions assumed in this paper the co-production system was economically feasible.

  13. Benefits of a Miniaturized Approach

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

    Benefits of a Miniaturized Approach Sandia's microsystems-enabled photovoltaics (MEPV) uses microdesign and microfabrication techniques to produce solar cells as small as 3-20 microns thick and 100-1000 microns wide. These PV cells are then placed or 'printed' onto a low-cost substrate with embedded contacts and microlenses for focusing sunlight onto the cells. Moving to micro-scale PV cell sizes results in distinct benefits at cell, module, and system levels, including reducing the amount of

  14. An abstract approach to music.

    SciTech Connect (OSTI)

    Kaper, H. G.; Tipei, S.

    1999-04-19

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

  15. Alternative systematic approaches to training

    SciTech Connect (OSTI)

    Not Available

    1995-01-01

    This handbook is approved for use by all DOE Components and contractors. The handbook was prepared primarily for DOE nuclear facilities, but the information can be effectively used by any other type of facility. DOE nuclear, DOE non-nuclear, commercial nuclear reactor, fuel fabrication, chemical processing, or other types of facilities may also apply the principles of this approach and find it useful and applicable to local needs. The handbook provides DOE and contractor operating organizations with concepts and guidance regarding the use of alternative techniques to implement a systematic approach to training (SAT). The techniques described in this handbook are endorsed by DOE and use of the guidance in this handbook is appropriate for establishment of technical training programs at DOE nuclear facilities. The use of guidance on selection and implementation of appropriate training approaches after consideration of job complexity, the consequences of error based on risk/hazard potential, and available training media should result in effective and efficient training programs. The information presented in this handbook can be used to grade the level of effort and formality used in developing training programs.

  16. Consent-Based Approach | Department of Energy

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

    Siting » Consent-Based Approach Consent-Based Approach Consent-Based Approach Next Steps in Developing a Consent-Based Approach to Siting Near-Term Steps in Developing a Consent-Based Approach to Siting As the Department moves forward with planning for an integrated waste management system, we are committed to a consent-based approach to siting that protects the nation's citizens, communities, and the environment. A consent-based approach is built on collaboration-with the public, with

  17. A NEW SYNTHETIC LIBRARY OF THE NEAR-INFRARED Ca II TRIPLET INDICES. I. INDEX DEFINITION, CALIBRATION, AND RELATIONS WITH STELLAR ATMOSPHERIC PARAMETERS

    SciTech Connect (OSTI)

    Du, W.; Luo, A. L.; Zhao, Y. H. E-mail: lal@nao.cas.cn

    2012-02-15

    Adopting the SPECTRUM package, which is a stellar spectral synthesis program, we have synthesized a comprehensive set of 2890 near-infrared (NIR) synthetic spectra with a resolution and wavelength sampling similar to the Sloan Digital Sky Survey (SDSS) and the forthcoming Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) spectra. During the synthesis, we applied the 'New grids of ATLAS9 Model Atmosphere' to develop a grid of local thermodynamic equilibrium model atmospheres for effective temperatures (T{sub eff}) ranging from 3500 to 7500 K, for surface gravities (log g) from 0.5 to 5.0 dex, for metallicities ([Fe/H]) from -4.0 to 0.5 dex, and for solar ([{alpha}/Fe] = 0.0 dex) and non-solar ([{alpha}/Fe] = +0.4 dex) abundances. This synthetic stellar library is composed of 1350 solar scaled abundance (SSA) and 1530 non-solar scaled abundance (NSSA) spectra, grounding on which we have defined a new set of NIR Ca II triplet indices and an index CaT as the sum of the three. These defined indices were automatically measured on every spectrum of the synthetic stellar library and calibrated with the indices computed on the observational spectra from the INDO-U.S. stellar library. In order to check the effect of {alpha}-element enhancement on the so-defined Ca II indices, we compared indices measured on the SSA spectra with those on the NSSA ones at the same trine of stellar parameters (T{sub eff}, log g, [Fe/H]); luckily, little influences of {alpha}-element enhancement were found. Furthermore, comparisons of our synthetic indices with the observational ones from measurements on the INDO-U.S. stellar library, the SDSS-DR7 and SDSS-DR8 spectroscopic survey are presented, respectively, for dwarfs and giants in specific. For dwarfs, our synthetic indices could well reproduce the behaviors of the observational indices versus stellar parameters, which verifies the validity of our index definitions for dwarfs. For giants, the consistency between our synthetic indices and the observational ones does not appear to be as good. However, a new synthetic library of NIR Ca II indices has been founded for deeper studies on the NIR wave band of stellar spectra, and this library is particularly appropriate for the SDSS and the forthcoming LAMOST stellar spectra. We have regressed the strength of the CaT index as a function of stellar parameters for both dwarfs and giants after a series of experimental investigations into relations of the indices with stellar parameters. For dwarfs, log g has little effect on the indices, while [Fe/H] and T{sub eff} play a role together. The leading factor is probably [Fe/H], which changes the strength of the indices by a positive trend. For giants, log g starts to influence the strength of the indices by a negative trend for the metal-poor, and even impact deeply for the metal-rich; besides, [Fe/H] and T{sub eff} still matter. In addition, we briefly discussed the major differences between our Ca II triplet indices and the CaHK doublet indices. Ultimately, a supplemental experiment was carried out to show that spectral noises do have effects on our set of NIR Ca II indices. However, the influence is not weak enough to be ignored if the signal-to-noise ratio falls below 20.

  18. SINGLE MOLECULE APPROACHES TO BIOLOGY, 2010 GORDON RESEARCH CONFERENCE, JUNE 27-JULY 2, 2010, ITALY

    SciTech Connect (OSTI)

    Professor William Moerner

    2010-07-09

    The 2010 Gordon Conference on Single-Molecule Approaches to Biology focuses on cutting-edge research in single-molecule science. Tremendous technical developments have made it possible to detect, identify, track, and manipulate single biomolecules in an ambient environment or even in a live cell. Single-molecule approaches have changed the way many biological problems are addressed, and new knowledge derived from these approaches continues to emerge. The ability of single-molecule approaches to avoid ensemble averaging and to capture transient intermediates and heterogeneous behavior renders them particularly powerful in elucidating mechanisms of biomolecular machines: what they do, how they work individually, how they work together, and finally, how they work inside live cells. The burgeoning use of single-molecule methods to elucidate biological problems is a highly multidisciplinary pursuit, involving both force- and fluorescence-based methods, the most up-to-date advances in microscopy, innovative biological and chemical approaches, and nanotechnology tools. This conference seeks to bring together top experts in molecular and cell biology with innovators in the measurement and manipulation of single molecules, and will provide opportunities for junior scientists and graduate students to present their work in poster format and to exchange ideas with leaders in the field. A number of excellent poster presenters will be selected for short oral talks. Topics as diverse as single-molecule sequencing, DNA/RNA/protein interactions, folding machines, cellular biophysics, synthetic biology and bioengineering, force spectroscopy, new method developments, superresolution imaging in cells, and novel probes for single-molecule imaging will be on the program. Additionally, the collegial atmosphere of this Conference, with programmed discussion sessions as well as opportunities for informal gatherings in the afternoons and evenings in the beauty of the Il Ciocco site in Tuscany, provides an avenue for scientists from different disciplines to interact and brainstorm and promotes cross-disciplinary collaborations directed toward compelling biological problems.

  19. Setup reduction approaches for machining

    SciTech Connect (OSTI)

    Gillespie, L.K.

    1997-04-01

    Rapid setup is a common improvement approach in press working operations such as blanking and shearing. It has paid major dividends in the sheet metal industry. It also has been a major improvement thrust for high-production machining operations. However, the literature does not well cover all the setup operations and constraints for job shop work. This review provides some insight into the issues involved. It highlights the floor problems and provides insights for further improvement. The report is designed to provide a quick understanding of the issues.

  20. Criteria and Review Approach Documents | Department of Energy

    Energy Savers [EERE]

    Criteria and Review Approach Documents Criteria and Review Approach Documents CRAD Type Criteria and Review Approach Document List

  1. Criteria Review and Approach Documents | Department of Energy

    Energy Savers [EERE]

    Criteria Review and Approach Documents Criteria Review and Approach Documents CRAD Type Criteria Review and Approach Document List...

  2. An Integrated Approach to Characterizing Bypassed Oil in Heterogeneous and Fractured Reservoirs Using Partitioning Tracers

    SciTech Connect (OSTI)

    Akhil Datta-Gupta

    2006-12-31

    We explore the use of efficient streamline-based simulation approaches for modeling partitioning interwell tracer tests in hydrocarbon reservoirs. Specifically, we utilize the unique features of streamline models to develop an efficient approach for interpretation and history matching of field tracer response. A critical aspect here is the underdetermined and highly ill-posed nature of the associated inverse problems. We have investigated the relative merits of the traditional history matching ('amplitude inversion') and a novel travel time inversion in terms of robustness of the method and convergence behavior of the solution. We show that the traditional amplitude inversion is orders of magnitude more non-linear and the solution here is likely to get trapped in local minimum, leading to inadequate history match. The proposed travel time inversion is shown to be extremely efficient and robust for practical field applications. The streamline approach is generalized to model water injection in naturally fractured reservoirs through the use of a dual media approach. The fractures and matrix are treated as separate continua that are connected through a transfer function, as in conventional finite difference simulators for modeling fractured systems. A detailed comparison with a commercial finite difference simulator shows very good agreement. Furthermore, an examination of the scaling behavior of the computation time indicates that the streamline approach is likely to result in significant savings for large-scale field applications. We also propose a novel approach to history matching finite-difference models that combines the advantage of the streamline models with the versatility of finite-difference simulation. In our approach, we utilize the streamline-derived sensitivities to facilitate history matching during finite-difference simulation. The use of finite-difference model allows us to account for detailed process physics and compressibility effects. The approach is very fast and avoids much of the subjective judgments and time-consuming trial-and-errors associated with manual history matching. We demonstrate the power and utility of our approach using a synthetic example and two field examples. We have also explored the use of a finite difference reservoir simulator, UTCHEM, for field-scale design and optimization of partitioning interwell tracer tests. The finite-difference model allows us to include detailed physics associated with reactive tracer transport, particularly those related with transverse and cross-streamline mechanisms. We have investigated the potential use of downhole tracer samplers and also the use of natural tracers for the design of partitioning tracer tests. Finally, we discuss several alternative ways of using partitioning interwell tracer tests (PITTs) in oil fields for the calculation of oil saturation, swept pore volume and sweep efficiency, and assess the accuracy of such tests under a variety of reservoir conditions.

  3. Comparing range data across the slow-time dimension to correct motion measurement errors beyond the range resolution of a synthetic aperture radar

    DOE Patents [OSTI]

    Doerry, Armin W. (Albuquerque, NM); Heard, Freddie E. (Albuquerque, NM); Cordaro, J. Thomas (Albuquerque, NM)

    2010-08-17

    Motion measurement errors that extend beyond the range resolution of a synthetic aperture radar (SAR) can be corrected by effectively decreasing the range resolution of the SAR in order to permit measurement of the error. Range profiles can be compared across the slow-time dimension of the input data in order to estimate the error. Once the error has been determined, appropriate frequency and phase correction can be applied to the uncompressed input data, after which range and azimuth compression can be performed to produce a desired SAR image.

  4. Eshelby-Mori-Tanaka Approach

    Energy Science and Technology Software Center (OSTI)

    2009-10-14

    EMTA is a stand-alone computer program that has been developed for the computation of elastic properties and thermal expansion coefficients (thermoelastic properties) of discontinuous fiber composites. EMTA stands for the Eshelby-Mori-Tanaka approach. It implements the standard and modified Mori-Tanaka models that use the Eshelby's equivalent inclusion method. EMTA carries out the Eshelby-Mori-Tanaka homogenization procedure accounting for the constituents (fiber and matrix) properties such as the elastic properties and thermal expansion coefficients (CTEs) of the fibersmore » and of the matrix. It also accounts for the constituents features such as fiber length and orientation distributions, fiber curvature, and imperfect fiber/matrix interfaces. The outputs of an EMTA execution are the elastic properties (engineering constants) and CTEs of the as-formed composite in the defined material coordinate system. These results can readily be used in engineering applications and designs that require these properties.« less

  5. Component Modeling Approach Software Tool

    Energy Science and Technology Software Center (OSTI)

    2010-08-23

    The Component Modeling Approach Software Tool (CMAST) establishes a set of performance libraries of approved components (frames, glass, and spacer) which can be accessed for configuring fenestration products for a project, and btaining a U-factor, Solar Heat Gain Coefficient (SHGC), and Visible Transmittance (VT) rating for those products, which can then be reflected in a CMA Label Certificate for code compliance. CMAST is web-based as well as client-based. The completed CMA program and software toolmore » will be useful in several ways for a vast array of stakeholders in the industry: Generating performance ratings for bidding projects Ascertaining credible and accurate performance data Obtaining third party certification of overall product performance for code compliance« less

  6. Approaches to Safe Nanotechnology | Department of Energy

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

    Approaches to Safe Nanotechnology Approaches to Safe Nanotechnology Approaches to Safe Nanotechnology PDF icon CX rulemaking files More Documents & Publications Volume II, Environment, Safety, and Health Special Review of Work Practices for Nanoscale Material Activities at Department of Energy Laboratories, August 2008 Sustainable Nanomaterials Workshop Environment, Safety, and Health Special Review, Department of Energy Laboratories - August 2008

  7. An iterative particle filter approach for coupled hydro-geophysical inversion of a controlled infiltration experiment

    SciTech Connect (OSTI)

    Manoli, Gabriele; Rossi, Matteo; Pasetto, Damiano; Deiana, Rita; Ferraris, Stefano; Cassiani, Giorgio; Putti, Mario

    2015-02-15

    The modeling of unsaturated groundwater flow is affected by a high degree of uncertainty related to both measurement and model errors. Geophysical methods such as Electrical Resistivity Tomography (ERT) can provide useful indirect information on the hydrological processes occurring in the vadose zone. In this paper, we propose and test an iterated particle filter method to solve the coupled hydrogeophysical inverse problem. We focus on an infiltration test monitored by time-lapse ERT and modeled using Richards equation. The goal is to identify hydrological model parameters from ERT electrical potential measurements. Traditional uncoupled inversion relies on the solution of two sequential inverse problems, the first one applied to the ERT measurements, the second one to Richards equation. This approach does not ensure an accurate quantitative description of the physical state, typically violating mass balance. To avoid one of these two inversions and incorporate in the process more physical simulation constraints, we cast the problem within the framework of a SIR (Sequential Importance Resampling) data assimilation approach that uses a Richards equation solver to model the hydrological dynamics and a forward ERT simulator combined with Archie's law to serve as measurement model. ERT observations are then used to update the state of the system as well as to estimate the model parameters and their posterior distribution. The limitations of the traditional sequential Bayesian approach are investigated and an innovative iterative approach is proposed to estimate the model parameters with high accuracy. The numerical properties of the developed algorithm are verified on both homogeneous and heterogeneous synthetic test cases based on a real-world field experiment.

  8. Approaching the exa-scale: a real-world evaluation of rendering extremely large data sets

    SciTech Connect (OSTI)

    Patchett, John M; Ahrens, James P; Lo, Li - Ta; Browniee, Carson S; Mitchell, Christopher J; Hansen, Chuck

    2010-10-15

    Extremely large scale analysis is becoming increasingly important as supercomputers and their simulations move from petascale to exascale. The lack of dedicated hardware acceleration for rendering on today's supercomputing platforms motivates our detailed evaluation of the possibility of interactive rendering on the supercomputer. In order to facilitate our understanding of rendering on the supercomputing platform, we focus on scalability of rendering algorithms and architecture envisioned for exascale datasets. To understand tradeoffs for dealing with extremely large datasets, we compare three different rendering algorithms for large polygonal data: software based ray tracing, software based rasterization and hardware accelerated rasterization. We present a case study of strong and weak scaling of rendering extremely large data on both GPU and CPU based parallel supercomputers using Para View, a parallel visualization tool. Wc use three different data sets: two synthetic and one from a scientific application. At an extreme scale, algorithmic rendering choices make a difference and should be considered while approaching exascale computing, visualization, and analysis. We find software based ray-tracing offers a viable approach for scalable rendering of the projected future massive data sizes.

  9. Interim Approach to the MRS facility design

    SciTech Connect (OSTI)

    Not Available

    1992-01-01

    The purpose is to present the proposed Interim Approach to the Monitored Retrievable Storage (MRS) facility design development. This Interim Approach document fulfills the function allocated to the OCRWM-SEMP (DOE/RW-0051REVlP, March 1990, Section 5.2 Approach to the MRS Design) until the MRS section of the OCRWM-SEMP is approved. Until completion of the OCRWM-SEMP, this Interim Approach document will be approved and controlled according to the Program Change Control Procedure (DOE/RW-0223REV3P). This document discusses the general approach to Conceptual Design (CD), Title I Design, and Title II Design activities.

  10. High-Resolution PFPE-based Molding Techniques for Nanofabrication of High-Pattern Density, Sub-20 nm Features: A Fundamental Materials Approach

    SciTech Connect (OSTI)

    Williams, Stuart S.; Retterer, Scott; Lopez, Rene; Ruiz, Ricardo; Samulski, Edward T.; DeSimone, Joseph M.

    2010-04-14

    Several perfluoropolyether (PFPE)-based elastomers for high-resolution replica molding applications are explored. The modulus of the elastomeric materials was increased through synthetic and additive approaches while maintaining relatively low surface tension values (<25 mN/m). Using large area (>4 in.{sup 2}) master templates, we experimentally show the relationship between mold resolution and material properties such as modulus and surface tension for materials used in this study. A composite mold approach was used to form flexible molds out of stiff, high modulus materials that allow for replication of sub-20 nm post structures. Sub-100 nm line grating master templates, formed using e-beam lithography, were used to determine the experimental stability of the molding materials. It was observed that as the feature spacing decreased, high modulus PFPE tetramethacrylate (TMA) composite molds were able to effectively replicate the nanograting structures without cracking or tear-out defects that typically occur with high modulus elastomers.

  11. Two Approaches to Calibration in Metrology

    SciTech Connect (OSTI)

    Campanelli, Mark

    2014-04-01

    Inferring mathematical relationships with quantified uncertainty from measurement data is common to computational science and metrology. Sufficient knowledge of measurement process noise enables Bayesian inference. Otherwise, an alternative approach is required, here termed compartmentalized inference, because collection of uncertain data and model inference occur independently. Bayesian parameterized model inference is compared to a Bayesian-compatible compartmentalized approach for ISO-GUM compliant calibration problems in renewable energy metrology. In either approach, model evidence can help reduce model discrepancy.

  12. Task Force Approach | Department of Energy

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

    Task Force Approach Task Force Approach Task Force Approach Results of the ARI Task Force: The purpose of the ARI Task Force is to 1) identify, prioritize, and resolve issues to enable sites and programs to implement revitalization efforts more effectively and 2) to facilitate programmatic incorporation of revitalization concepts into DOE's programmatic business environments. The Task Force must do this through coordinating and facilitating communication and connections, sharing lessons learned,

  13. Combinatorial Approaches for Hydrogen Storage Materials (presentation...

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

    Storage Materials R&D Workshop Hydrogen Storage Lab PI Workshop: HyMARC and NREL-Led Characterization Effort Combinatorial Approach for Hydrogen Storage Materials...

  14. State of Practice Approaches in Geomorphology, Geochronology...

    Office of Environmental Management (EM)

    Documents & Publications Vehicle Technologies Office Merit Review 2014: A Combined Experimental and Modeling Approach for the Design of High Coulombic Efficiency Si Electrodes...

  15. Sandia Energy - Biomimetic Approach to Nanoparticle Growth

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

    biological growth, a new 'Extended LaMer' method for reproducible and predictable synthesis of nanoparticles was developed. Significance and Impact This general approach allows...

  16. A Principled Approach to HPC Event Monitoring

    Office of Scientific and Technical Information (OSTI)

    ... but is not suitable in informing adaptive and predictive approaches of fault management. ... In In Proceedings of the 9th ACM SIGKDD, International Conference on Knowledge Discovery ...

  17. Center for Inverse Design: Inverse Design Approach

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

    Inverse Design Approach This page describes the inverse materials design methodology used by the Center for Inverse Design, which integrates and combines the following: (1) theory,...

  18. "Approaches to Ultrahigh Efficiency Solar Energy Conversion"...

    Office of Science (SC) Website

    "Approaches to Ultrahigh Efficiency Solar Energy Conversion" Webinar Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science Highlights News & Events EFRC News ...

  19. Seeking New Approaches to Investigate Domestication Events |...

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

    Seeking New Approaches to Investigate Domestication Events Monday, October 29, 2012 - 3:30am SSRL Bldg. 137, Rm. 322 Krish Seetah, Stanford University, Department of Anthropology...

  20. Requirements Flowdown and Graded Approach to QA

    Office of Environmental Management (EM)

    various consensus standards promulgated by the American Society of Testing Materials (ASTM) and in engineering specifications developed in accordance with design approaches...

  1. New sol-gel synthetic route to transition and main-group metal oxide aerogels using inorganic salt precursors

    SciTech Connect (OSTI)

    Gash, A E; Tillotson, T M; Satcher Jr, J H; Hrubesh, L W; Simpson, R L

    2000-09-12

    We have developed a new sol-gel route to synthesize several transition and main-group metal oxide aerogels. The approach is straightforward, inexpensive, versatile, and it produces monolithic microporous materials with high surface areas. Specifically, we report the use of epoxides as gelation agents for the sol-gel synthesis of chromia aerogels and xerogels from simple Cr(III) inorganic salts. The dependence of both gel formation and its rate was studied by varying the solvent used, the Cr(III) precursor salt, the epoxide/Cr(III) ratio, as well as the type of epoxide employed. All of these variables were shown to affect the rate of gel formation and provide a convenient control of this parameter. Dried chromia aerogels were characterized by high-resolution transmission electron microscopy (HRTEM) and nitrogen adsorption/desorption analyses, results of which will be presented. Our studies have shown that rigid monolithic gels can be prepared from many different metal ions salts, provided the formal oxidation state of the metal ion is greater than or equal to +3. Conversely, when di-valent transition metal salts are used precipitated solids are the products.

  2. Semi-synthetic preparation of 1-O-(1'-/sup 14/C)hexadecyl-2-acetyl-sn-glycero-3-phosphocholine (platelet activating factor) using plant cell cultures

    SciTech Connect (OSTI)

    Weber, N.; Mangold, H.K.

    1985-04-01

    Incubation of photomixotrophic cell suspension cultures of rape (Brassica napus) and heterotrophic cell suspension cultures of soya (Glycine max) with 1-O-(1'-/sup 14/C)hexadecyl-sn-glycerol or rac-1-O-(1'-/sup 14/C)hexadecylglycerol leads in high yield (up to 78%) to labeled 1-O-hexadecyl-2-acyl-sn-glycero-3-phosphocholines. Alkaline hydrolysis of the choline glycerophospholipids yields pure 1-O-(1'-/sup 14/C)hexadecyl-sn-glycero-3-phosphocholine. 1-O-(1'-14C)Hexadecyl-2-acetyl-sn-glycero-3-phosphocholine (platelet activating factor) is obtained by acetylating the lyso compound. The semi-synthetic preparation described leads to labeled platelet activating factor in an overall yield of 50-60% without loss of specific activity.

  3. Production Pathways and Separation Procedures for High-Diagnostic-Value Activation Species, Fission Products, and Actinides Required for Preparation of Realistic Synthetic Post-Detonation Nuclear Debris

    SciTech Connect (OSTI)

    Faye, S A; Shaughnessy, D A

    2015-08-19

    The objective of this project is to provide a comprehensive study on the production routes and chemical separation requirements for activation products, fission products, and actinides required for the creation of realistic post-detonation surrogate debris. Isotopes that have been prioritized by debris diagnosticians will be examined for their ability to be produced at existing irradiation sources, production rates, and availability of target materials, and chemical separation procedures required to rapidly remove the products from the bulk target matrix for subsequent addition into synthetic debris samples. The characteristics and implications of the irradiation facilities on the isotopes of interest will be addressed in addition to a summary of the isotopes that are already regularly produced.

  4. An innovative approach to multimedia waste reduction: Measuring performance for environmental cleanup projects

    SciTech Connect (OSTI)

    Phifer, B.E. Jr.; George, S.M.

    1993-04-01

    One of the greatest challenges we now face in environmental cleanup is measuring the progress of minimizing multimedia transfer releases and achieving waste reduction. Briefly, multimedia transfer refers to the air, land, and water where pollution is not controlled, concentrated, and moved from one medium to another. An example of multimedia transfer would be heavy metals in wastewater sludges moved from water to land disposal. Over $2 billion has been budgeted for environmental restoration site cleanups by the Department of Energy (DOE) for FY 1994. Unless we reduce the huge waste volumes projected to be generated in the near future, then we will devote more and more resources to the management and disposal of these wastes. To meet this challenge, the Martin Marietta Energy Systems, Inc., Oak Ridge Environmental Restoration (ER) Program has explored the value of a multimedia approach by designing an innovative Pollution Prevention Life-Cycle Model. The model consists of several fundamental elements (Fig. 1) and addresses the two major objectives of data gathering and establishing performance measures. Because the majority of projects are in the remedial investigation phase, the focus is on the prevention of unnecessary generation of investigation-derived waste and multimedia transfers at the source. A state-of-the-art tool developed to support the life-cycle model for meeting these objectives is the Numerical Scoring System (NSS), which is a computerized, user-friendly data base system for information management, designed to measure the effectiveness of pollution prevention activities in each phase of the ER Program. This report contains a discussion of the development of the Pollution Prevention Life-Cycle Model and the role the NSS will play in the pollution prevention programs in the remedial investigation phase of the ER Program at facilities managed by Energy Systems for DOE.

  5. A life-cycle model approach to multimedia waste reduction measuring performance for environmental cleanup projects

    SciTech Connect (OSTI)

    Phifer, B.E. Jr.; George, S.M.

    1993-07-01

    The Martin Marietta Energy Systems, Inc. (Energy Systems), Environmental Restoration (ER) Program adopted a Pollution Prevention Program in March 1991. The program`s mission is to minimize waste and prevent pollution in remedial investigations (RIs), feasibility studies, decontamination and decommissioning, and surveillance and maintenance site program activities. Mission success will result in volume and/or toxicity reduction of generated waste. The ER Program waste generation rates are projected to steadily increase through the year 2005 for all waste categories. Standard production units utilized to measure waste minimization apply to production/manufacturing facilities. Since ER inherited contaminated waste from previous production processes, no historical production data can be applied. Therefore, a more accurate measure for pollution prevention was identified as a need for the ER Program. The Energy Systems ER Program adopted a life-cycle model approach and implemented the concept of numerically scoring their waste generators to measure the effectiveness of pollution prevention/waste minimization programs and elected to develop a numerical scoring system (NSS) to accomplish these measurements. The prototype NSS, a computerized, user-friendly information management database system, was designed to be utilized in each phase of the ER Program. The NSS was designed to measure a generator`s success in incorporating pollution prevention in their work plans and reducing investigation-derived waste (IDW) during RIs. Energy Systems is producing a fully developed NSS and actually scoring the generators of IDW at six ER Program sites. Once RI waste generators are scored utilizing the NSS, the numerical scores are distributed into six performance categories: training, self-assessment, field implementation, documentation, technology transfer, and planning.

  6. Preparation of water soluble L-arginine capped CdSe/ZnS QDs and their interaction with synthetic DNA: Picosecond-resolved FRET study

    SciTech Connect (OSTI)

    Giri, Anupam; Goswami, Nirmal; Lemmens, Peter; Pal, Samir Kumar

    2012-08-15

    Graphical abstract: Förster resonance energy transfer (FRET) studies on the interaction of water soluble arginine-capped CdSe/ZnS QDs with ethidium bromide (EB) labeled synthetic dodecamer DNA. Highlights: ? We have solubilized CdSe/ZnS QD in water replacing their TOPO ligand by L-arginine. ? We have studied arginine@QD–DNA interaction using FRET technique. ? Arginine@QDs act as energy donor and ethidium bromide-DNA acts as energy acceptor. ? We have applied a kinetic model to understand the kinetics of energy transfer. ? Circular dichroism studies revealed negligible perturbation in the DNA B-form in the arg@QD-DNA complex. -- Abstract: We have exchanged TOPO (trioctylphosphine oxide) ligand of CdSe/ZnS core/shell quantum dots (QDs) with an amino acid L-arginine (Arg) at the toluene/water interface and eventually rendered the QDs from toluene to aqueous phase. We have studied the interaction of the water soluble Arg-capped QDs (energy donor) with ethidium (EB) labeled synthetic dodecamer DNA (energy acceptor) using picoseconds resolved Förster resonance energy transfer (FRET) technique. Furthermore, we have applied a model developed by M. Tachiya to understand the kinetics of energy transfer and the distribution of acceptor (EB-DNA) molecules around the donor QDs. Circular dichroism (CD) studies revealed a negligible perturbation in the native B-form structure of the DNA upon interaction with Arg-capped QDs. The melting and the rehybridization pathways of the DNA attached to the QDs have been monitored by the CD which reveals hydrogen bonding is the associative mechanism for interaction between Arg-capped QDs and DNA.

  7. Paducah Regulatory Approach | Department of Energy

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

    Environmental Remediation » Paducah Regulatory Approach Paducah Regulatory Approach Past uranium enrichment operations and support activities generated hazardous, radioactive, mixed (both hazardous and radioactive), and non-chemical (sanitary) waste. Past operations also resulted in soil, groundwater, and surface water contamination. Environmental investigations have been conducted since the 1980s to understand the extent of contamination. Following environmental investigations of the entire

  8. Renewables-Friendly Grid Development Strategies: Experience...

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

    penetrations of variable renewable electricity. China is actively contributing to this body of experience given the rapid growth in renewable electricity deployment there, while...

  9. Developing Biological Specifications for Fish Friendly Turbines

    Broader source: Energy.gov [DOE]

    This factsheet explains studies conducted in a highly reproducible manner to examine the biological effects to fish exposed to a shear environment in the laboratory.

  10. Non-Seismic Geophysical Approaches to Monitoring

    SciTech Connect (OSTI)

    Hoversten, G.M.; Gasperikova, Erika

    2004-09-01

    This chapter considers the application of a number of different geophysical techniques for monitoring geologic sequestration of CO2. The relative merits of the seismic, gravity, electromagnetic (EM) and streaming potential (SP) geophysical techniques as monitoring tools are examined. An example of tilt measurements illustrates another potential monitoring technique, although it has not been studied to the extent of other techniques in this chapter. This work does not represent an exhaustive study, but rather demonstrates the capabilities of a number of geophysical techniques on two synthetic modeling scenarios. The first scenario represents combined CO2 enhance oil recovery (EOR) and sequestration in a producing oil field, the Schrader Bluff field on the north slope of Alaska, USA. The second scenario is of a pilot DOE CO2 sequestration experiment scheduled for summer 2004 in the Frio Brine Formation in South Texas, USA. Numerical flow simulations of the CO2 injection process for each case were converted to geophysical models using petrophysical models developed from well log data. These coupled flow simulation geophysical models allow comparrison of the performance of monitoring techniques over time on realistic 3D models by generating simulated responses at different times during the CO2 injection process. These time-lapse measurements are used to produce time-lapse changes in geophysical measurements that can be related to the movement of CO2 within the injection interval.

  11. Facility Representative Program, Criteria & Review Approach Documents

    Broader source: Energy.gov [DOE]

    This page provides Criteria Review and Approach Documents (CRADS) to assist Facility Representatives. Please submit your CRADS for posting by sending them to the HQ FR Program Manager. Please include the subject, date, and a contact person.

  12. Suggested Approaches for Probabilistic Flooding Hazard Assessment

    Broader source: Energy.gov [DOE]

    Suggested Approaches for Probabilistic Flooding Hazard Assessment Ahmed “Jemie” Dababneh, Ph.D., P.E. and Jeffrey Oskamp, E.I.T. Presentation for U.S. Department of Energy Natural Phenomena Hazards Meeting October 22, 2014

  13. A new approach to water desalination

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

    new approach to water desalination A new approach to water desalination Graphene sheets with precisely controlled pores have potential to purify water more efficiently than existing methods. July 12, 2012 This story was written by David L. Chandler and originally published by the MIT News Office. When water molecules (red and white) and sodium and chlorine ions (green and purple) in saltwater, on the right, encounter a sheet of graphene (pale blue, center) perforated by holes of the right size,

  14. Combinatorial Approach for Hydrogen Storage Materials (presentation) |

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

    Department of Energy Approach for Hydrogen Storage Materials (presentation) Combinatorial Approach for Hydrogen Storage Materials (presentation) Presented at the U.S. Department of Energy's Hydrogen Storage Meeting held June 26, 2007 in Bethesda, Maryland. PDF icon ht_ge_soloveichik.pdf More Documents & Publications Final Report for the DOE Metal Hydride Center of Excellence Thermodynamic Guidelines for the Prediction of Hydrogen Storage Reactions and Their Application to Destabillzed

  15. Combinatorial Approaches for Hydrogen Storage Materials (presentation) |

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

    Department of Energy Approaches for Hydrogen Storage Materials (presentation) Combinatorial Approaches for Hydrogen Storage Materials (presentation) Presentation on NIST Combinatorial Methods at the U.S. Department of Energy's Hydrogen Storage Meeting held June 26, 2007 in Bethesda, Maryland. PDF icon ht_nist_bendersky.pdf More Documents & Publications High Througput Combinatorial Techniques in Hydrogen Storage Materials R&D Workshop Hydrogen Storage Lab PI Workshop: HyMARC and

  16. Portsmouth Regulatory Approach | Department of Energy

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

    Regulatory Approach Portsmouth Regulatory Approach The regulatory framework for the Decontamination & Decommissioning program requires five major decisions with public input, as outlined in the Director’s Final Findings and Orders. The regulatory framework for the Decontamination & Decommissioning program requires five major decisions with public input, as outlined in the Director's Final Findings and Orders. Environmental Remediation Environmental remediation, or the cleanup of

  17. Dissolution Kinetics of Synthetic and Natural Meta-Autunite Minerals, X??n????[(UO?)(PO?)]? ? xH?O, Under Acidic Conditions

    SciTech Connect (OSTI)

    Wellman, Dawn M.; Gunderson, Katie M.; Icenhower, Jonathan P.; Forrester, Steven W.

    2007-11-01

    Mass transport within the uranium geochemical cycle is impacted by the availability of phosphorous. In oxidizing environments, in which the uranyl ionic species is typically mobile, formation of sparingly soluble uranyl phosphate minerals exert a strong influence on uranium transport. Autunite group minerals have been identified as the long-term uranium controlling phases in many systems of geochemical interest. Anthropogenic operations related to uranium mining operations have created acidic environments, exposing uranyl phosphate minerals to low pH groundwaters. Investigations regarding the dissolution behavior of autunite group minerals under acidic conditions have not been reported; consequently, knowledge of the longevity of uranium controlling solids is incomplete. The purpose of this investigation was to: 1) quantify the dissolution kinetics of natural calcium and synthetic sodium meta-autunite, under acidic conditions, 2) measure the effect of temperature and pH on meta-autunite mineral dissolution, and 3) investigate the formation of secondary uranyl phosphate phases as long-term controls on uranium migration. Single-pass flow-through (SPFT) dissolution tests were conducted over the pH range of 2 to 5 and from 5° to 70°C. Results presented here illustrate meta-autunite dissolution kinetics are strongly dependent on pH, but are relatively insensitive to temperature variations. In addition, the formation of secondary uranyl-phosphate phases such as, uranyl phosphate, (UO2)3(PO4)2 ? 4 H2O, may serve as a secondary phase limiting the migration of uranium in the environment.

  18. Systematic Approach for Decommissioning Planning and Estimating

    SciTech Connect (OSTI)

    Dam, A. S.

    2002-02-26

    Nuclear facility decommissioning, satisfactorily completed at the lowest cost, relies on a systematic approach to the planning, estimating, and documenting the work. High quality information is needed to properly perform the planning and estimating. A systematic approach to collecting and maintaining the needed information is recommended using a knowledgebase system for information management. A systematic approach is also recommended to develop the decommissioning plan, cost estimate and schedule. A probabilistic project cost and schedule risk analysis is included as part of the planning process. The entire effort is performed by a experienced team of decommissioning planners, cost estimators, schedulers, and facility knowledgeable owner representatives. The plant data, work plans, cost and schedule are entered into a knowledgebase. This systematic approach has been used successfully for decommissioning planning and cost estimating for a commercial nuclear power plant. Elements of this approach have been used for numerous cost estimates and estimate reviews. The plan and estimate in the knowledgebase should be a living document, updated periodically, to support decommissioning fund provisioning, with the plan ready for use when the need arises.

  19. Systems Approach to Arms Control Verification

    SciTech Connect (OSTI)

    Allen, K; Neimeyer, I; Listner, C; Stein, G; Chen, C; Dreicer, M

    2015-05-15

    Using the decades of experience of developing concepts and technologies for verifying bilateral and multilateral arms control agreements, a broad conceptual systems approach is being developed that takes into account varying levels of information and risk. The IAEA has already demonstrated the applicability of a systems approach by implementing safeguards at the State level, with acquisition path analysis as the key element. In order to test whether such an approach could also be implemented for arms control verification, an exercise was conducted in November 2014 at the JRC ITU Ispra. Based on the scenario of a hypothetical treaty between two model nuclear weapons states aimed at capping their nuclear arsenals at existing levels, the goal of this exercise was to explore how to use acquisition path analysis in an arms control context. Our contribution will present the scenario, objectives and results of this exercise, and attempt to define future workshops aimed at further developing verification measures that will deter or detect treaty violations.

  20. Systems approach to project risk management

    SciTech Connect (OSTI)

    Kindinger, J. P.

    2002-01-01

    This paper describes the need for better performance in the planning and execution of projects and examines the capabilities of two different project risk analysis methods for improving project performance. A quantitative approach based on concepts and tools adopted from the disciplines of systems analysis, probabilistic risk analysis, and other fields is advocated for managing risk in large and complex research & development projects. This paper also provides an overview of how this system analysis approach for project risk management is being used at Los Alamos National Laboratory along with examples of quantitative risk analysis results and their application to improve project performance.

  1. Western Resource Adequacy: Challenges - Approaches - Metrics | Department

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

    of Energy West-Wide Resource Assessment Team. Committee on Regional Electric Power Cooperation. March 25, 2004 San Francisco, California PDF icon Western Resource Adequacy: Challenges - Approaches - Metrics More Documents & Publications Eastern Wind Integration and Transmission Study (EWITS) (Revised) Estimating the Benefits and Costs of Distributed Energy Technologies Workshop - Day 1 Presentations Congestion Analysis of the Eastern Interconnection: Simulation Results

  2. Method of producing synthetic pitch

    DOE Patents [OSTI]

    Kennel, Elliot B. (Morgantown, WV); Stansberry, Peter G. (North Olmsted, OH); Stiller, Alfred H. (Morgantown, WV); Zondlo, John W. (Albright, WV)

    2012-07-24

    Embodiments of a method are described for modifying pitches, oils, tars, and binders by using these materials as solvents to extract organic chemicals from coal.

  3. Fully synthetic taped insulation cables

    DOE Patents [OSTI]

    Forsyth, E.B.; Muller, A.C.

    1983-07-15

    The present invention is a cable which, although constructed from inexpensive polyolefin tapes and using typical impregnating oils, furnishes high voltage capability up to 765 kV, and has such excellent dielectric characteristics and heat transfer properties that it is capable of operation at capacities equal to or higher than presently available cables at a given voltage. This is accomplished by using polyethylene, polybutene or polypropylene insulating tape which has been specially processed to attain properties which are not generally found in these materials, but are required for their use in impregnated electrical cables. Chief among these properties is compatibility with impregnating oil.

  4. Fully synthetic taped insulation cables

    DOE Patents [OSTI]

    Forsyth, Eric B. (Brookhaven, NY); Muller, Albert C. (Center Moriches, NY)

    1984-01-01

    A high voltage oil-impregnated electrical cable with fully polymer taped insulation operable to 765 kV. Biaxially oriented, specially processed, polyethylene, polybutene or polypropylene tape with an embossed pattern is wound in multiple layers over a conductive core with a permeable screen around the insulation. Conventional oil which closely matches the dielectric constant of the tape is used, and the cable can be impregnated after field installation because of its excellent impregnation characteristics.

  5. Synthetic and Mechanistic Chemistry publications

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

    Microelectronics and Nanometer Structures 26(5), 1718-1722 (2008). Bethany N. Wigington, Michael L. Drummond, Thomas R. Cundari, David L. Thorn, Susan K. Hanson, and Susannah L....

  6. Observational Approach to Chromium Site Remediation - 13266

    SciTech Connect (OSTI)

    Scott Myers, R.

    2013-07-01

    Production reactors at the U.S. Department of Energy's (DOE) Hanford Site in Richland, Washington, required massive quantities of water for reactor cooling and material processing. To reduce corrosion and the build-up of scale in pipelines and cooling systems, sodium dichromate was added to the water feedstock. Spills and other releases at the makeup facilities, as well as leaks from miles of pipelines, have led to numerous areas with chromium-contaminated soil and groundwater, threatening fish populations in the nearby Columbia River. Pump-and-treat systems have been installed to remove chromium from the groundwater, but significant contamination remain in the soil column and poses a continuing threat to groundwater and the Columbia River. Washington Closure Hanford, DOE, and regulators are working on a team approach that implements the observational approach, a strategy for effectively dealing with the uncertainties inherent in subsurface conditions. Remediation of large, complex waste sites at a federal facility is a daunting effort. It is particularly difficult to perform the work in an environment of rapid response to changing field and contamination conditions. The observational approach, developed by geotechnical engineers to accommodate the inherent uncertainties in subsurface conditions, is a powerful and appropriate method for site remediation. It offers a structured means of quickly moving into full remediation and responding to the variations and changing conditions inherent in waste site cleanups. A number of significant factors, however, complicate the application of the observational approach for chromium site remediation. Conceptual models of contamination and site conditions are difficult to establish and get consensus on. Mid-stream revisions to the design of large excavations are time-consuming and costly. And regulatory constraints and contract performance incentives can be impediments to the flexible responses required under the observational approach. The WCH project team is working closely with stakeholders and taking a number of steps to meet these challenges in a continuing effort to remediate chromium contaminated soil in an efficient and cost-effective manner. (authors)

  7. An Analytical Approach for Tail-Pipe Emissions Estimation with...

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

    An Analytical Approach for Tail-Pipe Emissions Estimation with Coupled Engine and Aftertreatment System An Analytical Approach for Tail-Pipe Emissions Estimation with Coupled Engine ...

  8. Materials, Modules, and Systems: An Atoms to Autos Approach to...

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

    Materials, Modules, and Systems: An Atoms to Autos Approach to Automotive Thermoelectric Systems Development Materials, Modules, and Systems: An Atoms to Autos Approach to...

  9. Developing an Approach for First-principles Catalyst Design:...

    Office of Scientific and Technical Information (OSTI)

    Developing an Approach for First-principles Catalyst Design: Application to Carbon Capture Catalysis Citation Details In-Document Search Title: Developing an Approach for...

  10. A Model-Based Approach to Scintillator/Photomultiplier System...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: A Model-Based Approach to ScintillatorPhotomultiplier System Characterization Citation Details In-Document Search Title: A Model-Based Approach to Scintillator...

  11. EISPC White Paper on "State Approaches to Retention of Nuclear...

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

    EISPC White Paper on "State Approaches to Retention of Nuclear Power Plants" Now Available EISPC White Paper on "State Approaches to Retention of Nuclear Power Plants" Now ...

  12. Case Study: Innovative Energy Efficiency Approaches in NOAA's...

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

    Innovative Energy Efficiency Approaches in NOAA's Environmental Security Computing Center in Fairmont, West Virginia Case Study: Innovative Energy Efficiency Approaches in NOAA's ...

  13. Density Functional Theory Approach to Nuclear Fission (Conference...

    Office of Scientific and Technical Information (OSTI)

    Density Functional Theory Approach to Nuclear Fission Citation Details In-Document Search Title: Density Functional Theory Approach to Nuclear Fission You are accessing a...

  14. Novel Approach to Advanced Direct Methanol Fuel Cell Anode Catalysts...

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

    Approach to Advanced Direct Methanol Fuel Cell Anode Catalysts Novel Approach to Advanced Direct Methanol Fuel Cell Anode Catalysts Presented at the Department of Energy Fuel Cell...

  15. Fuel Station of the Future- Innovative Approach to Fuel Cell...

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

    Fuel Station of the Future- Innovative Approach to Fuel Cell Technology Unveiled in California Fuel Station of the Future- Innovative Approach to Fuel Cell Technology Unveiled in ...

  16. A Perturbation Approach to Calculating the Behavior of Hulti...

    Office of Scientific and Technical Information (OSTI)

    A Perturbation Approach to Calculating the Behavior of Hulti-cell Radiofrequeocy Accelerating Strectures Citation Details In-Document Search Title: A Perturbation Approach to...

  17. A Holistic Approach to Modeling and Simulation for Resilience...

    Office of Scientific and Technical Information (OSTI)

    A Holistic Approach to Modeling and Simulation for Resilience and Power Configuration. Citation Details In-Document Search Title: A Holistic Approach to Modeling and Simulation for...

  18. Approaches to Electric Utility Energy Efficiency for Low Income...

    Open Energy Info (EERE)

    Approaches to Electric Utility Energy Efficiency for Low Income Customers in a Changing Regulatory Environment Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Approaches...

  19. Generalizing the self-healing diffusion Monte Carlo approach...

    Office of Scientific and Technical Information (OSTI)

    Generalizing the self-healing diffusion Monte Carlo approach to finite temperature: A path ... Title: Generalizing the self-healing diffusion Monte Carlo approach to finite temperature: ...

  20. High Level Computational Chemistry Approaches to the Prediction...

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

    Level Computational Chemistry Approaches to the Prediction of Energetic Properties of Chemical Hydrogen Storage Systems High Level Computational Chemistry Approaches to the ...

  1. A Probabilistic Approach to Site-Specific, Hazard-Consistent...

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

    of High Coulombic Efficiency Si Electrodes Suggested Approaches for Probabilistic Flooding Hazard Assessment State of Practice Approaches in Geomorphology, Geochronology and ...

  2. Density Functional Theory Approach to Nuclear Fission (Conference...

    Office of Scientific and Technical Information (OSTI)

    Density Functional Theory Approach to Nuclear Fission Citation Details In-Document Search Title: Density Functional Theory Approach to Nuclear Fission Authors: Schunck, N Publication ...

  3. Team New Jersey's Beach House Approaches Sustainable Design from...

    Energy Savers [EERE]

    Team New Jersey's Beach House Approaches Sustainable Design from a Different Angle Team New Jersey's Beach House Approaches Sustainable Design from a Different Angle April 28, 2011...

  4. Approaches and Financial Models for Scaling up Norwegian Development...

    Open Energy Info (EERE)

    Approaches and Financial Models for Scaling up Norwegian Development Assistance to Clean Energy Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Approaches and Financial...

  5. Hydrogen Storage Technologies: Long-Term Commercialization Approach...

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

    Technologies: Long-Term Commercialization Approach with First Products First Hydrogen Storage Technologies: Long-Term Commercialization Approach with First Products First Presented...

  6. Sandia Energy - Experts Call for Triple Bottom Line Approach...

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

    Experts Call for Triple Bottom Line Approach to National Energy Policy Home Energy News News & Events Mission VisionMission Experts Call for Triple Bottom Line Approach to...

  7. Approaching Problems in Particle and Nuclear Physics with Time...

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

    Approaching Problems in Particle and Nuclear Physics with Time-Dependent Quantum Mechanics (Wednesday, Jan 20) Approaching Problems in Particle and Nuclear Physics with...

  8. Uganda-UNDP Territorial Approach to Climate Change (TACC) in...

    Open Energy Info (EERE)

    UNDP Territorial Approach to Climate Change (TACC) in Eastern Uganda Jump to: navigation, search Name UNDP Territorial Approach to Climate Change (TACC) in Eastern Uganda Agency...

  9. An Efficient Surrogate Modeling Approach in Bayesian Uncertainty...

    Office of Scientific and Technical Information (OSTI)

    Conference: An Efficient Surrogate Modeling Approach in Bayesian Uncertainty Analysis Citation Details In-Document Search Title: An Efficient Surrogate Modeling Approach in...

  10. PEM Fuel Cell Technology, Key Research Needs and Approaches ...

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

    Technology, Key Research Needs and Approaches (Presentation) PEM Fuel Cell Technology, Key Research Needs and Approaches (Presentation) Presented at the DOE Fuel Cell...

  11. DOE Announces Restructured FutureGen Approach to Demonstrate...

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

    Restructured FutureGen Approach to Demonstrate CCS Technology at Multiple Clean Coal Plants DOE Announces Restructured FutureGen Approach to Demonstrate CCS Technology at Multiple ...

  12. PRESENTATION: OVERVIEW OF PROPOSED "DARPA-INSPIRED" APPROACH...

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

    PRESENTATION: OVERVIEW OF PROPOSED "DARPA-INSPIRED" APPROACH TO ENVIRONMENTAL MANAGEMENT TECHNOLOGY DEVELOPMENT PRESENTATION: OVERVIEW OF PROPOSED "DARPA-INSPIRED" APPROACH TO...

  13. High resolution PFPE-based molding High resolution PFPE-based molding High resolution PFPE-based molding techniques for nanofabrication of high pattern density sub-20 nm features: A fundamental materials approach

    SciTech Connect (OSTI)

    Williams, Stuart S [University of North Carolina, Chapel Hill; Samulski, Edward [University of North Carolina, Chapel Hill; Lopez, Renee [University of North Carolina, Chapel Hill; Ruiz, Ricardo [Hitachi; DeSimone, Joseph [University of North Carolina, Chapel Hill; Retterer, Scott T [ORNL

    2010-01-01

    ABSTRACT. Described herein is the development and investigation of PFPE-based elastomers for high resolution replica molding applications. The modulus of the elastomeric materials was increased through synthetic and additive approaches while maintaining relatively low surface energies (<25 mN/m). Using practically relevant large area master templates, we show that the resolution of the molds is strongly dependant upon the elastomeric mold modulus. A composite mold approach was used to form flexible molds out of stiff, high modulus materials that allow for replication of sub-20 nm post structures. Sub-100 nm line grating master templates, formed using e-beam lithography, were used to determine the experimental stability of the molding materials. It was observed that as the feature spacing decreased, high modulus composite molds were able to effectively replicate the nano-grating structures without cracking or tear-out defects that typically occur with high modulus elastomers.

  14. Successful horizontal completions require an integrated approach

    SciTech Connect (OSTI)

    Richard, B.; Smejkal, K.; Penberthy, W. Jr.

    1997-01-01

    While a perfect well completion may not exist, depleting a hydrocarbon resource at a sustained high rate--without a workover--is the ultimate goal. Unfortunately, many horizontal well completions fail to achieve this due to wellbore damage or loss of reservoir pressure. These conditions manifest themselves in reduced production rates, extended well life and reduced profitability. Standard completion techniques are not always compatible with each other for site specific well applications. The combination of two incompatible technologies or slight changes in a completion procedure may negatively impact productivity. Hence, the most successful horizontal completion results are obtained using a compatible integrated system approach--an approach that carefully combines the best completion tools and processes to deliver an undamaged well completed at the lowest possible cost. After studying the compatibilities of various drill-in fluids, screens, filter cakes and gravel packs, recommended procedures are presented for successfully completing horizontal wells.

  15. Statistical approach to nuclear level density

    SciTech Connect (OSTI)

    Sen'kov, R. A.; Horoi, M.; Zelevinsky, V. G.

    2014-10-15

    We discuss the level density in a finite many-body system with strong interaction between the constituents. Our primary object of applications is the atomic nucleus but the same techniques can be applied to other mesoscopic systems. We calculate and compare nuclear level densities for given quantum numbers obtained by different methods, such as nuclear shell model (the most successful microscopic approach), our main instrument - moments method (statistical approach), and Fermi-gas model; the calculation with the moments method can use any shell-model Hamiltonian excluding the spurious states of the center-of-mass motion. Our goal is to investigate statistical properties of nuclear level density, define its phenomenological parameters, and offer an affordable and reliable way of calculation.

  16. Novel Approaches to High-Efficiency III-V Nitride Heterostructure Emitters for Next-Generation Lighting Applications

    SciTech Connect (OSTI)

    Russell D. Dupuis

    2006-01-01

    We report research activities and technical progress on the development of high-efficiency long wavelength ({lambda} {approx} 540nm) green light emitting diodes which covers the second year of the three-year program ''Novel approaches to high-efficiency III-V nitride heterostructure emitters for next-generation lighting applications''. The second year activities were focused on the development of p-type layer that has less/no detrimental thermal annealing effect on green LED active region as well as excellent structural and electrical properties and the development of green LED active region that has superior luminescence quality for {lambda} {approx}540nm green LEDs. We have also studied the thermal annealing effect on blue and green LED active region during the p-type layer growth. As a progress highlight, we obtained green-LED-active-region-friendly In{sub 0.04}Ga{sub 0.96}N:Mg exhibiting low resistivity with higher hole concentration (p=2.0 x 10{sup 18} cm{sup -3} and a low resistivity of 0.5 {Omega}-cm) and improved optical quality green LED active region emitting at {lambda} {approx}540nm by electroluminescence. The active region of the green LEDs was found to be much more sensitive to the thermal annealing effect during the p-type layer growth than that of the blue LEDs. We have designed grown, fabricated green LED structures for both 520 nm and 540 nm for the evaluation of second year green LED development.

  17. A simple approach to modeling ductile failure.

    SciTech Connect (OSTI)

    Wellman, Gerald William

    2012-06-01

    Sandia National Laboratories has the need to predict the behavior of structures after the occurrence of an initial failure. In some cases determining the extent of failure, beyond initiation, is required, while in a few cases the initial failure is a design feature used to tailor the subsequent load paths. In either case, the ability to numerically simulate the initiation and propagation of failures is a highly desired capability. This document describes one approach to the simulation of failure initiation and propagation.

  18. CBEI - Collaborative Approaches for Integrated Energy Retrofits

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

    CBEI - Collaborative Approaches for Integrated Energy Retrofits 2015 Building Technologies Office Peer Review John Messner, jmessner@engr.psu.edu Charles and Elinor Matts Professor of Architectural Engineering CBEI - The Pennsylvania State University Project Summary Timeline: Start date: February 1, 2013 Planned end date: April 30, 2015 Key Milestones: 1. Three work sessions in collaborative workspace (April 30, 2014) 2. Work with 5 project teams in collaborative workspaces (April 30, 2015) 3.

  19. Towards a Multiscale Approach to Cybersecurity Modeling

    SciTech Connect (OSTI)

    Hogan, Emilie A.; Hui, Peter SY; Choudhury, Sutanay; Halappanavar, Mahantesh; Oler, Kiri J.; Joslyn, Cliff A.

    2013-11-12

    We propose a multiscale approach to modeling cyber networks, with the goal of capturing a view of the network and overall situational awareness with respect to a few key properties--- connectivity, distance, and centrality--- for a system under an active attack. We focus on theoretical and algorithmic foundations of multiscale graphs, coming from an algorithmic perspective, with the goal of modeling cyber system defense as a specific use case scenario. We first define a notion of \\emph{multiscale} graphs, in contrast with their well-studied single-scale counterparts. We develop multiscale analogs of paths and distance metrics. As a simple, motivating example of a common metric, we present a multiscale analog of the all-pairs shortest-path problem, along with a multiscale analog of a well-known algorithm which solves it. From a cyber defense perspective, this metric might be used to model the distance from an attacker's position in the network to a sensitive machine. In addition, we investigate probabilistic models of connectivity. These models exploit the hierarchy to quantify the likelihood that sensitive targets might be reachable from compromised nodes. We believe that our novel multiscale approach to modeling cyber-physical systems will advance several aspects of cyber defense, specifically allowing for a more efficient and agile approach to defending these systems.

  20. Modular HTGR Safety Basis and Approach

    SciTech Connect (OSTI)

    Thomas Hicks

    2011-08-01

    The Next Generation Nuclear Plant (NGNP) will be a licensed commercial high temperature gas-cooled reactor (HTGR) capable of producing electricity and/or high temperature process heat for industrial markets supporting a range of end-user applications. The NGNP Project has adopted the 10 CFR 52 Combined License (COL) process, as recommended in the NGNP Licensing Strategy - A Report to Congress, dated August 2008, as the foundation for the NGNP licensing strategy [DOE/NRC 2008]. Nuclear Regulatory Commission (NRC) licensing of the NGNP plant utilizing this process will demonstrate the efficacy for licensing future HTGRs for commercial industrial applications. This information paper is one in a series of submittals that address key generic issues of the priority licensing topics as part of the process for establishing HTGR regulatory requirements. This information paper provides a summary level introduction to HTGR history, public safety objectives, inherent and passive safety features, radionuclide release barriers, functional safety approach, and risk-informed safety approach. The information in this paper is intended to further the understanding of the modular HTGR safety approach with the NRC staff and public stakeholders. The NGNP project does not expect to receive comments on this information paper because other white papers are addressing key generic issues of the priority licensing topics in greater detail.

  1. Sorption-Enhanced Synthetic Natural Gas (SNG) Production from Syngas. A Novel Process Combining CO Methanation, Water-Gas Shift, and CO2 Capture

    SciTech Connect (OSTI)

    Lebarbier, Vanessa M.C.; Dagle, Robert A.; Kovarik, Libor; Albrecht, Karl O.; Li, Xiaohong S.; Li, Liyu; Taylor, Charles E.; Bao, Xinhe; Wang, Yong

    2013-07-08

    Synthetic natural gas (SNG) production from syngas is under investigation again due to the desire for less dependency from imports and the opportunity for increasing coal utilization and reducing green house gas emission. CO methanation is highly exothermic and substantial heat is liberated which can lead to process thermal imbalance and deactivation of the catalyst. As a result, conversion per pass is limited and substantial syngas recycle is employed in conventional processes. Furthermore, the conversion of syngas to SNG is typically performed at moderate temperatures (275 to 325°C) to ensure high CH4 yields since this reaction is thermodynamically limited. In this study, the effectiveness of a novel integrated process for the SNG production from syngas at high temperature (i.e. 600?C) was investigated. This integrated process consists of combining a CO methanation nickel-based catalyst with a high temperature CO2 capture sorbent in a single reactor. Integration with CO2 separation eliminates the reverse-water-gas shift and the requirement for a separate water-gas shift (WGS) unit. Easing of thermodynamic constraint offers the opportunity of enhancing yield to CH4 at higher operating temperature (500-700ºC) which also favors methanation kinetics and improves the overall process efficiency due to exploitation of reaction heat at higher temperatures. Furthermore, simultaneous CO2 capture eliminates green house gas emission. In this work, sorption-enhanced CO methanation was demonstrated using a mixture of a 68% CaO/32% MgAl2O4 sorbent and a CO methanation catalyst (Ni/Al2O3, Ni/MgAl2O4, or Ni/SiC) utilizing a syngas ratio (H2/CO) of 1, gas-hour-space velocity (GHSV) of 22 000 hr-1, pressure of 1 bar and a temperature of 600oC. These conditions resulted in ~90% yield to methane, which was maintained until the sorbent became saturated with CO2. By contrast, without the use of sorbent, equilibrium yield to methane is only 22%. Cyclic stability of the methanation catalyst and durability of the sorbent were also studied in the multiple carbonation-decarbonation cycle studies proving the potential of this integrated process in a practical application.

  2. Model based approach to UXO imaging using the time domain electromagnetic method

    SciTech Connect (OSTI)

    Lavely, E.M.

    1999-04-01

    Time domain electromagnetic (TDEM) sensors have emerged as a field-worthy technology for UXO detection in a variety of geological and environmental settings. This success has been achieved with commercial equipment that was not optimized for UXO detection and discrimination. The TDEM response displays a rich spatial and temporal behavior which is not currently utilized. Therefore, in this paper the author describes a research program for enhancing the effectiveness of the TDEM method for UXO detection and imaging. Fundamental research is required in at least three major areas: (a) model based imaging capability i.e. the forward and inverse problem, (b) detector modeling and instrument design, and (c) target recognition and discrimination algorithms. These research problems are coupled and demand a unified treatment. For example: (1) the inverse solution depends on solution of the forward problem and knowledge of the instrument response; (2) instrument design with improved diagnostic power requires forward and inverse modeling capability; and (3) improved target recognition algorithms (such as neural nets) must be trained with data collected from the new instrument and with synthetic data computed using the forward model. Further, the design of the appropriate input and output layers of the net will be informed by the results of the forward and inverse modeling. A more fully developed model of the TDEM response would enable the joint inversion of data collected from multiple sensors (e.g., TDEM sensors and magnetometers). Finally, the author suggests that a complementary approach to joint inversions is the statistical recombination of data using principal component analysis. The decomposition into principal components is useful since the first principal component contains those features that are most strongly correlated from image to image.

  3. Approaches to acceptable risk: a critical guide

    SciTech Connect (OSTI)

    Fischhoff, B.; Lichtenstein, S.; Slovic, P.; Keeney, R.; Derby, S.

    1980-12-01

    Acceptable-risk decisions are an essential step in the management of technological hazards. In many situations, they constitute the weak (or missing) link in the management process. The absence of an adequate decision-making methodology often produces indecision, inconsistency, and dissatisfaction. The result is neither good for hazard management nor good for society. This report offers a critical analysis of the viability of various approaches as guides to acceptable-risk decisions. This report seeks to define acceptable-risk decisions and to examine some frequently proposed, but inappropriate, solutions. 255 refs., 22 figs., 25 tabs.

  4. Accelerated learning approaches for maintenance training

    SciTech Connect (OSTI)

    Erickson, E.J.

    1991-01-01

    As a training tool, Accelerated Learning techniques have been in use since 1956. Trainers from a variety of applications and disciplines have found success in using Accelerated Learning approaches, such as training aids, positive affirmations, memory aids, room arrangement, color patterns, and music. Some have thought that maintenance training and Accelerated Learning have nothing in common. Recent training applications by industry and education of Accelerated Learning are proving very successful by several standards. This paper cites available resource examples and challenges maintenance trainers to adopt new ideas and concepts to accelerate learning in all training setting. 7 refs.

  5. Maintenance for the Millennium: Another Approach

    SciTech Connect (OSTI)

    Sculthorpe, Barruy R.

    2002-07-01

    Nuclear units nationwide are struggling to increase plant reliability and availability while at the same time reduce their operating and maintenance costs. Some very costly investments have been made in programs such as Reliability Centered Maintenance [RCM]. Florida Power and Light's approach at the St. Lucie Nuclear Plant has taken a slightly different approach. Building on our knowledge of the RCM process and an already existing 'World Class' Predictive Maintenance Program, a 'Condition-Based' Maintenance Program that takes advantage of the RCM philosophy and our toolbox full of advanced and highly successful predictive maintenance technologies. These tools currently consist of vibration analysis, lubricant analysis (both physical property and wear metals analysis, thermographic analysis, motor current signature analysis, tribology and process parameter trending. All employed with the intent to evaluate a machines health. This machine health check allows the forecasting of future preventative maintenance [PM's] tasks and the revision of existing PM's to maximize machine performance and eliminate 'no-value-added' maintenance activities/costs. Within the last year, the Condition-Based Maintenance Program has produced a cost saving of approximately $1.5 million dollars. As the program matures, these cost savings will accumulate well into the millennium. (authors)

  6. Advanced Safeguards Approaches for New Fast Reactors

    SciTech Connect (OSTI)

    Durst, Philip C.; Therios, Ike; Bean, Robert; Dougan, A.; Boyer, Brian; Wallace, Rick L.; Ehinger, Michael H.; Kovacic, Don N.; Tolk, K.

    2007-12-15

    This third report in the series reviews possible safeguards approaches for new fast reactors in general, and the ABR in particular. Fast-neutron spectrum reactors have been used since the early 1960s on an experimental and developmental level, generally with fertile blanket fuels to “breed” nuclear fuel such as plutonium. Whether the reactor is designed to breed plutonium, or transmute and “burn” actinides depends mainly on the design of the reactor neutron reflector and the whether the blanket fuel is “fertile” or suitable for transmutation. However, the safeguards issues are very similar, since they pertain mainly to the receipt, shipment and storage of fresh and spent plutonium and actinide-bearing “TRU”-fuel. For these reasons, the design of existing fast reactors and details concerning how they have been safeguarded were studied in developing advanced safeguards approaches for the new fast reactors. In this regard, the design of the Experimental Breeder Reactor-II “EBR-II” at the Idaho National Laboratory (INL) was of interest, because it was designed as a collocated fast reactor with a pyrometallurgical reprocessing and fuel fabrication line – a design option being considered for the ABR. Similarly, the design of the Fast Flux Facility (FFTF) on the Hanford Site was studied, because it was a successful prototype fast reactor that ran for two decades to evaluate fuels and the design for commercial-scale fast reactors.

  7. A Multifaceted Mathematical Approach for Complex Systems

    SciTech Connect (OSTI)

    Alexander, F.; Anitescu, M.; Bell, J.; Brown, D.; Ferris, M.; Luskin, M.; Mehrotra, S.; Moser, B.; Pinar, A.; Tartakovsky, A.; Willcox, K.; Wright, S.; Zavala, V.

    2012-03-07

    Applied mathematics has an important role to play in developing the tools needed for the analysis, simulation, and optimization of complex problems. These efforts require the development of the mathematical foundations for scientific discovery, engineering design, and risk analysis based on a sound integrated approach for the understanding of complex systems. However, maximizing the impact of applied mathematics on these challenges requires a novel perspective on approaching the mathematical enterprise. Previous reports that have surveyed the DOE's research needs in applied mathematics have played a key role in defining research directions with the community. Although these reports have had significant impact, accurately assessing current research needs requires an evaluation of today's challenges against the backdrop of recent advances in applied mathematics and computing. To address these needs, the DOE Applied Mathematics Program sponsored a Workshop for Mathematics for the Analysis, Simulation and Optimization of Complex Systems on September 13-14, 2011. The workshop had approximately 50 participants from both the national labs and academia. The goal of the workshop was to identify new research areas in applied mathematics that will complement and enhance the existing DOE ASCR Applied Mathematics Program efforts that are needed to address problems associated with complex systems. This report describes recommendations from the workshop and subsequent analysis of the workshop findings by the organizing committee.

  8. An adaptive approach to resource management

    SciTech Connect (OSTI)

    Lessard, G.

    1995-12-01

    A formal process of adaptive management will be required to maximize the benefits of any option for land and natural resource management and to achieve the long-term objective of ecosystem management. The process itself is straightforward and simple: new information is identified, evaluated, and a determination is made whether to adjust strategy or goals. Adaptive management is a continuing process of action-based planning, monitoring, researching and adjusting with the objective of improving the implementation and achieving the desired goals and outcomes. In this process goals and objectives are clearly stated, an initial hypothesis of ecosystem behavior is described, and monitoring is conducted to provide rapid feedback for redirection of management experiments. While the concept of adaptive management is relatively straightforward, applying it to complex management strategies requires answers to several critical questions. What new information should compel an adjustment to the management strategy? What threshold should trigger this adjustment? Who decides when and how to make adjustments? What are the definitions and thresholds of acceptable results? Adaptive ecosystem management depends on a continually evolving understanding of cause-and-effect relationships in both biological and social systems. The key features in an adaptive approach are: (1) An experimental design for implementation; (2) An explicit description of the system; (3) Well defined goals and objectives (4) Identification of critical uncertainties; (5) A monitoring and evaluation program; (6) An aggressive approach to learning; and (7) An adaptable structure.

  9. A stochastic approach to quantifying the blur with uncertainty estimation for high-energy X-ray imaging systems

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

    Fowler, Michael J.; Howard, Marylesa; Luttman, Aaron; Mitchell, Stephen E.; Webb, Timothy J.

    2015-06-03

    One of the primary causes of blur in a high-energy X-ray imaging system is the shape and extent of the radiation source, or ‘spot’. It is important to be able to quantify the size of the spot as it provides a lower bound on the recoverable resolution for a radiograph, and penumbral imaging methods – which involve the analysis of blur caused by a structured aperture – can be used to obtain the spot’s spatial profile. We present a Bayesian approach for estimating the spot shape that, unlike variational methods, is robust to the initial choice of parameters. The posteriormore » is obtained from a normal likelihood, which was constructed from a weighted least squares approximation to a Poisson noise model, and prior assumptions that enforce both smoothness and non-negativity constraints. A Markov chain Monte Carlo algorithm is used to obtain samples from the target posterior, and the reconstruction and uncertainty estimates are the computed mean and variance of the samples, respectively. Lastly, synthetic data-sets are used to demonstrate accurate reconstruction, while real data taken with high-energy X-ray imaging systems are used to demonstrate applicability and feasibility.« less

  10. MEMS Packaging - Current Issues and Approaches

    SciTech Connect (OSTI)

    DRESSENDORFER,PAUL V.; PETERSON,DAVID W.; REBER,CATHLEEN ANN

    2000-01-19

    The assembly and packaging of MEMS (Microelectromechanical Systems) devices raise a number of issues over and above those normally associated with the assembly of standard microelectronic circuits. MEMS components include a variety of sensors, microengines, optical components, and other devices. They often have exposed mechanical structures which during assembly require particulate control, space in the package, non-contact handling procedures, low-stress die attach, precision die placement, unique process schedules, hermetic sealing in controlled environments (including vacuum), and other special constraints. These constraints force changes in the techniques used to separate die on a wafer, in the types of packages which can be used in the assembly processes and materials, and in the sealing environment and process. This paper discusses a number of these issues and provides information on approaches being taken or proposed to address them.

  11. Variational approach for static mirror structures

    SciTech Connect (OSTI)

    Kuznetsov, E. A.; Passot, T.; Sulem, P. L.; Ruban, V. P.

    2015-04-15

    Anisotropic static plasma equilibria where the parallel and perpendicular pressures are only functions of the amplitude of the local magnetic field are shown to be amenable to a variational principle with a free energy density given by the parallel tension. This approach is used to demonstrate that two-dimensional small-amplitude static magnetic holes constructed from a Grad-Shafranov type equation slightly below the (subcritical) mirror instability threshold identify with lump solitons of KPII equation, but turn out to be unstable. Differently, large-amplitude magnetic structures, which are stable as they realize a minimum of the free energy, are computed using a gradient method within two-dimensional numerical simulations where the regularizing effect of finite Larmor radius corrections is retained. Interestingly, these structures transform from stripes to bubbles when the angle of the magnetic field with the coordinate plane is increased.

  12. Frictional granular mechanics: A variational approach

    SciTech Connect (OSTI)

    Holtzman, R.; Silin, D.B.; Patzek, T.W.

    2009-10-16

    The mechanical properties of a cohesionless granular material are evaluated from grain-scale simulations. Intergranular interactions, including friction and sliding, are modeled by a set of contact rules based on the theories of Hertz, Mindlin, and Deresiewicz. A computer generated, three-dimensional, irregular pack of spherical grains is loaded by incremental displacement of its boundaries. Deformation is described by a sequence of static equilibrium configurations of the pack. A variational approach is employed to find the equilibrium configurations by minimizing the total work against the intergranular loads. Effective elastic moduli are evaluated from the intergranular forces and the deformation of the pack. Good agreement between the computed and measured moduli, achieved with no adjustment of material parameters, establishes the physical soundness of the proposed model.

  13. Pantex Takes a Green Approach to Cleaning Weapons Parts | National...

    National Nuclear Security Administration (NNSA)

    Takes a Green Approach to Cleaning Weapons Parts At NNSA's Pantex Plant in Amarillo, Texas, a new green approach to cleaning weapons parts was brought online recently at the...

  14. A Probabilistic Approach to Site-Specific, Hazard-Consistent

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

    Vertical-to-Horizontal Spectral Ratio Model | Department of Energy Approach to Site-Specific, Hazard-Consistent Vertical-to-Horizontal Spectral Ratio Model A Probabilistic Approach to Site-Specific, Hazard-Consistent Vertical-to-Horizontal Spectral Ratio Model A Probabilistic Approach to Site-Specific, Hazard-Consistent Vertical-to-Horizontal Spectral Ratio Model Rizzo Associates Presented at U.S. DOE Natural Phenomena Hazards Meeting October 21, 2014 PDF icon A Probabilistic Approach to

  15. Engine System Approach to Exhaust Energy Recovery | Department of Energy

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

    System Approach to Exhaust Energy Recovery Engine System Approach to Exhaust Energy Recovery Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs. PDF icon 2006_deer_kruiswyk.pdf More Documents & Publications An Engine System Approach to Exhaust Waste Heat Recovery An Engine System Approach to Exhaust Waste Heat Recovery The Path to a 50% Thermal Efficient Engine

  16. Requirements Flowdown and Graded Approach to QA | Department of Energy

    Energy Savers [EERE]

    Requirements Flowdown and Graded Approach to QA Requirements Flowdown and Graded Approach to QA This document provides the method for applying a graded approach to procurement activities across Department of Energy (DOE) Environmental Management (EM). The document is to be used by EM Headquarters (HQ), EM Field/Project Offices, and EM Contractors to implement procurement processes associated with all work performed for the EM Program. PDF icon Requirements Flowdown and Graded Approach to QA More

  17. Deadline Approaching for Small Business Innovation Research Opportunity |

    Office of Environmental Management (EM)

    Department of Energy Deadline Approaching for Small Business Innovation Research Opportunity Deadline Approaching for Small Business Innovation Research Opportunity January 19, 2012 - 12:34pm Addthis Our Office of Energy Efficiency and Renewable Energy has posted the following announcement about the approaching deadline for the SBIR and STTR awards - Deadline Approaching for Small Business Innovation Research Opportunity January 19, 2012 The application deadline is nearing for phase I

  18. State of Practice Approaches in Geomorphology, Geochronology and

    Office of Environmental Management (EM)

    Probabilistic Analyses for Addressing Fault Capability at Nuclear Facilities | Department of Energy State of Practice Approaches in Geomorphology, Geochronology and Probabilistic Analyses for Addressing Fault Capability at Nuclear Facilities State of Practice Approaches in Geomorphology, Geochronology and Probabilistic Analyses for Addressing Fault Capability at Nuclear Facilities State of Practice Approaches in Geomorphology, Geochronology and Probabilistic Analyses for Addressing Fault

  19. Science based integrated approach to advanced nuclear fuel development - vision, approach, and overview

    SciTech Connect (OSTI)

    Unal, Cetin [Los Alamos National Laboratory; Pasamehmetoglu, Kemal [IDAHO NATIONAL LAB; Carmack, Jon [IDAHO NATIONAL LAB

    2010-01-01

    Advancing the performance of Light Water Reactors, Advanced Nuclear Fuel Cycles, and Advanced Rcactors, such as the Next Generation Nuclear Power Plants, requires enhancing our fundamental understanding of fuel and materials behavior under irradiation. The capability to accurately model the nuclear fuel systems is critical. In order to understand specific aspects of the nuclear fuel, fully coupled fuel simulation codes are required to achieve licensing of specific nuclear fuel designs for operation. The backbone of these codes, models, and simulations is a fundamental understanding and predictive capability for simulating the phase and microstructural behavior of the nuclear fuel system materials and matrices. The purpose of this paper is to identify the modeling and simulation approach in order to deliver predictive tools for advanced fuels development. The coordination between experimental nuclear fuel design, development technical experts, and computational fuel modeling and simulation technical experts is a critical aspect of the approach and naturally leads to an integrated, goal-oriented science-based R & D approach and strengthens both the experimental and computational efforts. The Advanced Fuels Campaign (AFC) and Nuclear Energy Advanced Modeling and Simulation (NEAMS) Fuels Integrated Performance and Safety Code (IPSC) are working together to determine experimental data and modeling needs. The primary objective of the NEAMS fuels IPSC project is to deliver a coupled, three-dimensional, predictive computational platform for modeling the fabrication and both normal and abnormal operation of nuclear fuel pins and assemblies, applicable to both existing and future reactor fuel designs. The science based program is pursuing the development of an integrated multi-scale and multi-physics modeling and simulation platform for nuclear fuels. This overview paper discusses the vision, goals and approaches how to develop and implement the new approach.

  20. Establishment of stable synthetic mutualism without co-evolution between microalgae and bacteria demonstrated by mutual transfer of metabolites (NanoSIMS isotopic imaging) and persistent physical association (Fluorescent in situ hybridization)

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

    de-Bashan, Luz E.; Mayali, Xavier; Bebout, Brad M.; Weber, Peter K.; Detweiler, Angela M.; Hernandez, Juan- Pablo; Prufert-Bebout, Leslie; Bashan, Yoav

    2016-03-03

    The demonstration of a mutualistic interaction requires evidence of benefits for both partners as well as stability of the association over multiple generations. A synthetic mutualism between the freshwater microalga Chlorella sorokiniana and the soil-derived plant growth-promoting bacterium (PGPB) Azospirillum brasilense was created when both microorganisms were co-immobilized in alginate beads. Using stable isotope enrichment experiments followed by high-resolution secondary ion mass spectrometry (SIMS) imaging of single cells, we demonstrated transfer of carbon and nitrogen compounds between the two partners. Further, using fluorescent in situ hybridization (FISH), mechanical disruption and scanning electron microscopy, we demonstrated the stability of their physicalmore » association for a period of 10 days after the aggregated cells were released from the beads. The bacteria significantly enhanced the growth of the microalgae while the microalgae supported growth of the bacteria in a medium where it could not otherwise grow. In conclusion, we propose that this microalga-bacterium association is a true synthetic mutualism independent of co-evolution. (155 words).« less

  1. Evaluations in support of regulatory and research decisions by the U. S. Environmental Protection Agency for the control of toxic hazards from hazardous wastes, glyphosate, dalapon, and synthetic fuels

    SciTech Connect (OSTI)

    Scofield, R.

    1984-01-01

    This report includes toxicological and regulatory evaluations performed in support of U.S. EPA regulation of toxic materials and hazardous wastes. The first section of the report describes evaluations which support: (a) the regulation of small-volume generators of hazardous wastes, (b) the regulation of hazardous wastes from pesticide manufacturing, and (c) the disposal of the herbicide, silvex. The second section describes the environmental fate, transport, and effect of glyphosate and dalapon. The third section deals with synthetic fuels, including evaluations of synfuel-product toxicity, uncontrolled air emissions, and particular focus on the toxicity of products from several indirect coal liquefaction processes including methanol synthesis, Fischer-Tropsch, Mobil M-Gasoline, and Lurgi gasification technologies. Three direct coal liquefaction processes were examined for product toxicity and air emissions: Solvent Refined Coal (I and II) and the Exxon Donor Solvent Process. Also described in the third section is an evaluation of environmental and health hazards associated with the use of synthetic fuels from indirect coal liquefaction, direct coal liquefaction, and shale oil. Finally, the fourth section discusses some problems associated with performing, on a contractual basis, scientific and technical evaluations in support of U.S. EPA regulatory and research decisions.

  2. Safety analysis approaches or mixed transuranic waste.

    SciTech Connect (OSTI)

    Courtney, J. C.; Dwight, C. C.; Forrester, R. J.; Lehto, M. A.; Pan, Y. C.

    1999-02-10

    Argonne National Laboratory (ANL) has completed a survey of assumptions and techniques used for safety analyses at seven sites that handle or store mixed transuranic (TRU) waste operated by contractors for the US Department of Energy (DOE). While approaches to estimating on-site and off-site consequences of hypothetical accidents differ, there are commonalities in all of the safety studies. This paper identifies key parameters and methods used to estimate the radiological consequences associated with release of waste forms under abnormal conditions. Specific facilities are identified by letters with their safety studies listed in a bibliography rather than as specific references so that similarities and differences are emphasized in a nonjudgmental manner. References are provided for specific parameters used to project consequences associated with compromise of barriers and dispersion of potentially hazardous materials. For all of the accidents and sites, estimated dose commitments are well below guidelines even using highly conservative assumptions. Some of the studies quantified the airborne concentrations of toxic materials; this paper only addresses these analyses briefly, as an entire paper could be dedicated to this subject.

  3. Defining coiled tubing limits -- A new approach

    SciTech Connect (OSTI)

    Newman, K.R.; Sathuvalli, U.B.; Stone, L.R.; Wolhart, S.

    1996-12-31

    The burst, collapse and axial load operating limits for Coiled Tubing (CT) are currently established using the Von Mises incipient yield criterion. This criterion has historically been used to calculate the limits for oil country tubular goods (OCTG). The limits according to this criterion are based on the point at which the pipe material reaches a load state in which it begins to yield. Because of the bending that occurs when the CT is spooled on and off the reel, and when it is bent over the guide arch, the CT is already far beyond the yield point before it enters a well. Thus, this criterion does not really apply to CT. This paper describes a research project currently in progress. The purpose of this project is to define a new set of CT limits based on criteria other than incipient yield. This new approach to setting CT operating limits takes into account the internal residual stresses in the CT which are a consequence of repeated bending cycles and the accompanying change in material properties.

  4. A technical approach to groundwater contamination problems

    SciTech Connect (OSTI)

    Burton, J.C.; Leser, C.; Rose, C.M.

    1993-06-01

    Argonne National Laboratory has been performing technical investigations at sites in Nebraska and Kansas that have identified groundwater contamination by carbon tetrachloride. This comprehensive program will ultimately provide the affected communities with safe drinking water. The first step in the program is to evaluate the available data and identify sites that will require an Alternate Water Supply Study (AWSS). The objective of the AWSS is to identify options for providing a safe drinking water supply to all users, in compliance with the Safe Drinking Water Act. The AWSS consists of an engineering and cost evaluation followed by implementation of the selected alternative. For sites with contamination less than a specific concentration, the AWSS is regarded as a satisfactory long term solution, and no further action is taken. For those sites with concentrations above that specific limit, the AWSS implementation is regarded as only a stopgap measure, and the site is selected for additional remedial action. The first step of the remedial action is an Expedited Site Characterization (ESC). The ESC was developed at Argonne to decrease the cost and time of the remedial investigation and feasibility study while producing a high-quality technical investigation. The ESC is designed to characterize the contaminant plume configuration and movement, which requires an understanding of the geological and hydrogeologic controls on groundwater movement as well as the nature and extent of any remaining carbon tetrachloride source in the soils. The ESC program uses a multidisciplinary technical approach that incorporates geology, geochemistry, geohydrology, and geophysics. Field activities include sampling, chemical analysis, and borehole and surface geophysical surveys.

  5. Systematic Approach to Better Understanding Integration Costs

    SciTech Connect (OSTI)

    Stark, Gregory B.

    2015-09-01

    This research presents a systematic approach to evaluating the costs of integrating new generation and operational procedures into an existing power system, and the methodology is independent of the type of change or nature of the generation. The work was commissioned by the U.S. Department of Energy and performed by the National Renewable Energy Laboratory to investigate three integration cost-related questions: (1) How does the addition of new generation affect a system's operational costs, (2) How do generation mix and operating parameters and procedures affect costs, and (3) How does the amount of variable generation (non-dispatchable wind and solar) impact the accuracy of natural gas orders? A detailed operational analysis was performed for seven sets of experiments: variable generation, large conventional generation, generation mix, gas prices, fast-start generation, self-scheduling, and gas supply constraints. For each experiment, four components of integration costs were examined: cycling costs, non-cycling VO&M costs, fuel costs, and reserves provisioning costs. The investigation was conducted with PLEXOS production cost modeling software utilizing an updated version of the Institute of Electrical and Electronics Engineers 118-bus test system overlaid with projected operating loads from the Western Electricity Coordinating Council for the Sacramento Municipal Utility District, Puget Sound Energy, and Public Service Colorado in the year 2020. The test system was selected in consultation with an industry-based technical review committee to be a reasonable approximation of an interconnection yet small enough to allow the research team to investigate a large number of scenarios and sensitivity combinations. The research should prove useful to market designers, regulators, utilities, and others who want to better understand how system changes can affect production costs.

  6. A New Approach for Fingerprint Image Compression

    SciTech Connect (OSTI)

    Mazieres, Bertrand

    1997-12-01

    The FBI has been collecting fingerprint cards since 1924 and now has over 200 million of them. Digitized with 8 bits of grayscale resolution at 500 dots per inch, it means 2000 terabytes of information. Also, without any compression, transmitting a 10 Mb card over a 9600 baud connection will need 3 hours. Hence we need a compression and a compression as close to lossless as possible: all fingerprint details must be kept. A lossless compression usually do not give a better compression ratio than 2:1, which is not sufficient. Compressing these images with the JPEG standard leads to artefacts which appear even at low compression rates. Therefore the FBI has chosen in 1993 a scheme of compression based on a wavelet transform, followed by a scalar quantization and an entropy coding : the so-called WSQ. This scheme allows to achieve compression ratios of 20:1 without any perceptible loss of quality. The publication of the FBI specifies a decoder, which means that many parameters can be changed in the encoding process: the type of analysis/reconstruction filters, the way the bit allocation is made, the number of Huffman tables used for the entropy coding. The first encoder used 9/7 filters for the wavelet transform and did the bit allocation using a high-rate bit assumption. Since the transform is made into 64 subbands, quite a lot of bands receive only a few bits even at an archival quality compression rate of 0.75 bit/pixel. Thus, after a brief overview of the standard, we will discuss a new approach for the bit-allocation that seems to make more sense where theory is concerned. Then we will talk about some implementation aspects, particularly for the new entropy coder and the features that allow other applications than fingerprint image compression. Finally, we will compare the performances of the new encoder to those of the first encoder.

  7. Comparison of Routable Control System Security Approaches

    SciTech Connect (OSTI)

    Edgar, Thomas W.; Hadley, Mark D.; Carroll, Thomas E.; Manz, David O.; Winn, Jennifer D.

    2011-06-01

    This document is an supplement to the 'Secure and Efficient Routable Control Systems.' It addressed security in routable control system communication. The control system environment that monitors and manages the power grid historically has utilized serial communication mechanisms. Leased-line serial communication environments operating at 1200 to 9600 baud rates are common. However, recent trends show that communication media such as fiber, optical carrier 3 (OC-3) speeds, mesh-based high-speed wireless, and the Internet are becoming the media of choice. In addition, a dichotomy has developed between the electrical transmission and distribution environments, with more modern communication infrastructures deployed by transmission utilities. The preceding diagram represents a typical control system. The Communication Links cloud supports all of the communication mechanisms a utility might deploy between the control center and devices in the field. Current methodologies used for security implementations are primarily led by single vendors or standards bodies. However, these entities tend to focus on individual protocols. The result is an environment that contains a mixture of security solutions that may only address some communication protocols at an increasing operational burden for the utility. A single approach is needed that meets operational requirements, is simple to operate, and provides the necessary level of security for all control system communication. The solution should be application independent (e.g., Distributed Network Protocol/Internet Protocol [DNP/IP], International Electrotechnical Commission [IEC] C37.118, Object Linking and Embedding for Process Control [OPC], etc.) and focus on the transport layer. In an ideal setting, a well-designed suite of standards for control system communication will be used for vendor implementation and compliance testing. An expected outcome of this effort is an international standard.

  8. Radioactive waste management approaches for developed countries

    SciTech Connect (OSTI)

    Patricia Paviet-Hartmann; Anthony Hechanova; Catherine Riddle

    2013-07-01

    Nuclear power has demonstrated over the last 30 years its capacity to produce base-load electricity at a low, predictable and stable cost due to the very low economic dependence on the price of uranium. However the management of used nuclear fuel remains the “Achilles’ Heel” of this energy source since the storage of used nuclear fuel is increasing as evidenced by the following number with 2,000 tons of UNF produced each year by the 104 US nuclear reactor units which equates to a total of 62,000 spent fuel assemblies stored in dry cask and 88,000 stored in pools. Two options adopted by several countries will be presented. The first one adopted by Europe, Japan and Russia consists of recycling the used nuclear fuel after irradiation in a nuclear reactor. Ninety six percent of uranium and plutonium contained in the spent fuel could be reused to produce electricity and are worth recycling. The separation of uranium and plutonium from the wastes is realized through the industrial PUREX process so that they can be recycled for re-use in a nuclear reactor as a mixed oxide (MOX) fuel. The second option undertaken by Finland, Sweden and the United States implies the direct disposal of used nuclear fuel into a geologic formation. One has to remind that only 30% of the worldwide used nuclear fuel are currently recycled, the larger part being stored (70% in pool) waiting for scientific or political decisions. A third option is emerging with a closed fuel cycle which will improve the global sustainability of nuclear energy. This option will not only decrease the volume amount of nuclear waste but also the long-term radiotoxicity of the final waste, as well as improving the long-term safety and the heat-loading of the final repository. At the present time, numerous countries are focusing on the R&D recycling activities of the ultimate waste composed of fission products and minor actinides (americium and curium). Several new chemical extraction processes, such as TRUSPEAK, ALSEP, EXAM, or LUCA are pursued worldwide and their approaches will be highlighted.

  9. CBEI: Collaborative Approaches for Integrated Energy Retrofits - 2015 Peer

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

    Review | Department of Energy Collaborative Approaches for Integrated Energy Retrofits - 2015 Peer Review CBEI: Collaborative Approaches for Integrated Energy Retrofits - 2015 Peer Review Presenter: John Messner, PSU View the Presentation PDF icon CBEI: Collaborative Approaches for Integrated Energy Retrofits - 2015 Peer Review More Documents & Publications CBEI: Enhancing OpenStudio for Airflow and Daylight Modeling - 2015 Peer Review CBEI: Lessons Learned from Integrated Retrofits in

  10. Pre-approvals Needed for Alternative Approaches | Department of Energy

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

    Superior Energy Performance » Pre-approvals Needed for Alternative Approaches Pre-approvals Needed for Alternative Approaches Superior Energy Performance logo To accommodate differences in manufacturing operations, some facilities may use alternative approaches as specified in the Superior Energy Performance® (SEP(tm)) Measurement and Verification Protocol for Industry and summarized in the table below. Before submitting your application, we strongly encourage you to request pre-approval from

  11. Hazard Communications Training Deadline Approaches | Department of Energy

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

    Hazard Communications Training Deadline Approaches Hazard Communications Training Deadline Approaches November 1, 2013 - 8:45am Addthis Hazard Communications Training Deadline Approaches 10 CFR 851, Worker Safety and Health Program, requires all DOE Federal and contractor employees with hazardous chemicals in their workplaces to complete new Hazard Communication Standard Training. The major changes to the standard include hazard classification, labeling, Safety Data Sheets, information and

  12. Hydrogen Storage Technologies: Long-Term Commercialization Approach with

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

    First Products First | Department of Energy Technologies: Long-Term Commercialization Approach with First Products First Hydrogen Storage Technologies: Long-Term Commercialization Approach with First Products First Presented at the NREL Hydrogen and Fuel Cell Manufacturing R&D Workshop in Washington, DC, August 11-12, 2011. PDF icon Hydrogen Storage Technologies: Long-Term Commercialization Approach with First Products First More Documents & Publications DOE Hydrogen and Fuel Cell

  13. Evaluating a new approach to CO2 capture and storage

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

    Evaluating a new approach to CO2 capture and storage Evaluating a new approach to CO2 capture and storage In a perspective paper published in Greenhouse Gases: Science and Technology, researchers examined a new approach that could potentially overcome many barriers to deployment and jumpstart this process on a commercial scale. September 13, 2015 Map of the contiguous United States shows the location of facilities that produce high-value chemicals/products and the amount of carbon dioxide

  14. Volvo Super Truck Overview and Approach | Department of Energy

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

    Super Truck Overview and Approach Volvo Super Truck Overview and Approach Provides overview and discusses approach of the Volvo Super Truck Team to develop a number of advanced technologies to significantly improve freight efficiency of long-haul trucks PDF icon deer11_amar.pdf More Documents & Publications Impact of Vehicle Efficiency Improvements on Powertrain Design Vehicle Technologies Office Merit Review 2015: Volvo SuperTruck - Powertrain Technologies for Efficiency Improvement Volvo

  15. Enabling Legislation for Clean Energy Finance Approaches | Department of

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

    Energy Legislation for Clean Energy Finance Approaches Enabling Legislation for Clean Energy Finance Approaches In some instances legislative and executive efforts are required to implement energy efficiency and renewable energy finance approaches. For certain structure options, like property-assessed clean energy (PACE) programs or qualified energy conservation bonds (QECBs), authorizing legislative or executive efforts will be required at a state level. For example, state-level enabling

  16. Buydown and Buyout Approaches for Federal Utility Energy Service Contracts

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

    | Department of Energy Buydown and Buyout Approaches for Federal Utility Energy Service Contracts Buydown and Buyout Approaches for Federal Utility Energy Service Contracts There are several recommended buydown and buyout approaches that allow federal agencies to leverage prepayments to get the best value from utility energy service contracts (UESCs). Most UESC projects allow the federal government to prepay the funding obligation at any time during the term of the contract in accordance

  17. Study of Alternative Approaches for Transite Panel Removal | Department of

    Energy Savers [EERE]

    Energy Study of Alternative Approaches for Transite Panel Removal Study of Alternative Approaches for Transite Panel Removal Bechtel Jacobs Company LLC (BJC) assembled an experienced team from both sites to evaluate both the manual and mechanical methods of transite panel removal. PDF icon Study of Alternative Approaches for Transite Panel Removal More Documents & Publications Type B Accident Investigation, Subcontractor Employee Personal Protective Equipment Ignition Incident on

  18. Building America Expert Meeting: Recommended Approaches to Humidity Control

    Energy Savers [EERE]

    in High Performance Homes | Department of Energy Recommended Approaches to Humidity Control in High Performance Homes Building America Expert Meeting: Recommended Approaches to Humidity Control in High Performance Homes The topic of this Building America expert meeting was Recommended Approaches to Humidity Control in High Performance Homes,Ž which was held on October 16, 2012, in Westford, MA, and brought together experts in the field of residential humidity control to address modeling

  19. Current Approaches to Safety, Codes and Standards | Department of Energy

    Office of Environmental Management (EM)

    Safety, Codes & Standards » Current Approaches to Safety, Codes and Standards Current Approaches to Safety, Codes and Standards Current approaches to hydrogen and fuel cells safety, codes and standards are based on existing practices, guidelines, and codes and standards developed as a result of hydrogen's use in the chemical and aerospace industries. While some codes and standards for hydrogen and hydrogen-related systems are already available, in many cases they do not fully address the

  20. DOE Qualifying Official Training Approaches | Department of Energy

    Office of Environmental Management (EM)

    Policy, Guidance & Reports » Worker Health & Safety » Federal Technical Capability Program (FTCP) » DOE Qualifying Official Training Approaches DOE Qualifying Official Training Approaches Qualifying Official Training Approaches Idaho Operations Office Livermore Field Office Nevada Field Office NNSA Production Office NNSA Service Center Office of Science, SC-3 Office of Science, Chicago Office of Science, Oak Ridge Savannah River Operations Office Sandia Field Office FTCP FAQS

  1. Cluster Analysis-Based Approaches for Geospatiotemporal Data...

    Office of Scientific and Technical Information (OSTI)

    Cluster Analysis-Based Approaches for Geospatiotemporal Data Mining of Massive Data Sets for Identification of Forest Threats Mills, Richard T ORNL ORNL; Hoffman, Forrest M...

  2. A Target-Oriented Magnetotelluric Inversion Approach For Characterizin...

    Open Energy Info (EERE)

    Geothermal Reservoir Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: A Target-Oriented Magnetotelluric Inversion Approach For...

  3. Readiness Review Training- Development of Criteria And Review Approach Documents

    Broader source: Energy.gov [DOE]

    Slides used for November 8-9, 2010 Readiness Review Training - Development of Criteria And Review Approach Documents at the Idaho National Laboratory.

  4. Low Carbon Growth Plans: A Sectoral Approach to Climate Protection...

    Open Energy Info (EERE)

    to Climate Protection Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Low Carbon Growth Plans: A Sectoral Approach to Climate Protection AgencyCompany Organization:...

  5. Simplified Approach for Estimating Impacts of Electricity Generation...

    Open Energy Info (EERE)

    Approach Provides a first-order assessment of the external costs of operating fossil fuel-based, nuclear, hydro, or other power plants, taking into account emissions,...

  6. Sandia Energy - Sandia Offers Approach to Help Utilities Understand...

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

    Technology provides a unique approach to help utilities assess the potential effects of high levels of solar photovoltaic (PV) systems on the grid. "Time Series Power Flow Analysis...

  7. Developing an Approach for First-principles Catalyst Design:...

    Office of Scientific and Technical Information (OSTI)

    Catalyst Design: Application to Carbon Capture Catalysis Citation Details In-Document Search Title: Developing an Approach for First-principles Catalyst Design: Application ...

  8. Creative Financing Approaches for Residential Energy Efficiency Programs

    Broader source: Energy.gov [DOE]

    Better Buildings Residential Network Peer Exchange Call Series: Creative Financing Approaches for Residential Energy Efficiency Programs, call slides and discussion summary.

  9. Approaches for Developing Uniform Hazard Spectra at Critical...

    Office of Environmental Management (EM)

    Presentation from the May 2015 Seismic Lessons-Learned Panel Meeting. PDF icon Approaches for Developing Uniform Hazard Spectra at Critical Facilities More Documents & Publications...

  10. Passive Catalytic Approach to Low Temperature NOx Emission Abatement...

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

    Passive Catalytic Approach to Low Temperature NOx Emission Abatement Numerically evaluated and optimized proposed state-of-the-art passive catalytic technology designed to reduce ...

  11. Approaches used for Clearance of Lands from Nuclear Facilities...

    Office of Environmental Management (EM)

    Approaches used for Clearance of Lands from Nuclear Facilities among Several Countries ... den ame- rikanska krnkraftmyndigheten Nuclear Regulatory Commission (NRC), bland annat ...

  12. Random-matrix approach to the statistical compound nuclear reaction...

    Office of Scientific and Technical Information (OSTI)

    nuclear reaction at low energies using the Monte-Carlo technique Citation Details In-Document Search Title: Random-matrix approach to the statistical compound nuclear ...

  13. GIZ-Best Practices in Capacity Building Approaches | Open Energy...

    Open Energy Info (EERE)

    Building Approaches: Recommendations for the Design of a Long -Term Capacity Building Strategy for the Wind and Solar Sectors by the MEF Working Group AgencyCompany Organization:...

  14. Advanced Methods Approach to Hybrid Powertrain Systems Optimization...

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

    Advanced Methods Approach to Hybrid Powertrain Systems Optimization of a Transit Bus ... system requirements along with traction motor, battery, and APU development and ...

  15. Low Carbon Green Growth: Integrated Policy Approach to Climate...

    Open Energy Info (EERE)

    Growth: Integrated Policy Approach to Climate Change for Asia-Pacific Developing Countries Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Low Carbon Green Growth:...

  16. Manual for Quantitative Evaluation of the Co-Benefits Approach...

    Open Energy Info (EERE)

    Manual for Quantitative Evaluation of the Co-Benefits Approach to Climate Change Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Manual for Quantitative Evaluation of...

  17. Economic Evaluation of Climate Change Adaptation Projects: Approaches...

    Open Energy Info (EERE)

    Evaluation of Climate Change Adaptation Projects: Approaches for the Agricultural Sector and Beyond Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Economic Evaluation...

  18. An integrated approach towards efficient, scalable, and low cost...

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

    device geometries, heat sink designs, and durability and long-term performance tests PDF icon huxtable.pdf More Documents & Publications An integrated approach towards...

  19. DOE (Department of Energy) risk assessment worksheets: A structured approach

    SciTech Connect (OSTI)

    Not Available

    1989-09-01

    This volume consists of the worksheets for each step in completing the guideline. This guideline outlines the approach to conducting risk assessments of computer security. (JEF)

  20. Solving the power flow equations: a monotone operator approach...

    Office of Scientific and Technical Information (OSTI)

    We validate the approach on several IEEE test cases and demonstrate that the offline optimization can be performed tractably and the computed "monotonicity domain" includes all ...

  1. Recovery Act: Multi-Objective Optimization Approaches for the...

    Office of Scientific and Technical Information (OSTI)

    The methodology will rely on a geostatistical approach to generate ensembles of scenarios ... DOE Contract Number: FE0001830 Resource Type: Technical Report Research Org: Colorado ...

  2. A Multidisciplinary Approach To Detect Active Pathways For Magma...

    Open Energy Info (EERE)

    Multidisciplinary Approach To Detect Active Pathways For Magma Migration And Eruption At Mt Etna (Sicily, Italy) Before The 2001 And 2002-2003 Eruptions Jump to: navigation, search...

  3. 2009-06 "Support for Innovative Approaches to Community Outreach...

    Office of Environmental Management (EM)

    The intent of this Recommendation is to support community outreach objectives using innovative approaches that would make use of web-based tools to demonstrate actual work being ...

  4. High Bandgap Phosphide Approaches for LED Applications - Energy...

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

    A new approach to fabricating high-efficiency Amber LEDs National Renewable Energy Laboratory Contact NREL About This Technology Publications: PDF Document Publication AlInP Green ...

  5. October 13, 2015 Webinar - EPA Radiation Risk Assessment Approach |

    Energy Savers [EERE]

    Department of Energy 3, 2015 Webinar - EPA Radiation Risk Assessment Approach October 13, 2015 Webinar - EPA Radiation Risk Assessment Approach Performance & RIsk Assessment (P&RA) Community of Practice (CoP) Webinar - October 13, 2015 - EPA Radiation Risk Assessment Approach by Mr. Stuart Walker, U.S. Environmental Protection Agency, 2-3 pm Eastern Time. PDF icon Agenda - October 13, 2015 - P&RA CoP Webinar PDF icon Presentation - U.S. EPA Superfund Remedial Program's Approach

  6. Buydown and Buyout Approaches for Federal Utility Energy Service Contracts

    Broader source: Energy.gov [DOE]

    Several recommended buydown and buyout approaches exist that allow federal agencies to leverage prepayments to get the best value from utility energy service contracts (UESCs).

  7. Reactive facies: An approach for parameterizing field-scale reactive...

    Office of Scientific and Technical Information (OSTI)

    Reactive facies: An approach for parameterizing field-scale reactive transport models using geophysical methods Citation Details In-Document Search Title: Reactive facies: An...

  8. Free, Prior, and Informed Consent in REDD+: Principles and Approaches...

    Open Energy Info (EERE)

    Free, Prior, and Informed Consent in REDD+: Principles and Approaches for Policy and Project Development Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Free, Prior, and...

  9. A systematic interdisciplinary approach to NEPA compliance programs

    SciTech Connect (OSTI)

    March, F. )

    1993-01-01

    NEPA calls for a systematic interdisciplinary approach'', but no substantive guidance is provided by the law or the regulations on how to implement such an approach. A review of the literature on the impact assessment methods (most of which were written in the 1970s) reveals a variety of valid approaches, but is largely useful within a specific program context. This paper presents and illustrates a more general theory for a systematic interdisciplinary approach. The logic for this approach is rigorously grounded on statements in NEPA itself and in CEQ's regulations. The results have provided a part of the theoretical framework for a NEPA expert system and have proven useful in training project managers in implementing NEPA. The paper first summarizes NEPA and CEQ's specific statements relating to a systematic interdisciplinary approach. It distinguishes between the procedural vs substantive aspects of an approach. The procedural approach is first presented in the form of a logic diagram cross-referenced in detail to requirements or guidance in the CEQ regulations. This provides the framework for an expert system approach to procedural compliance, and for a NEPA program management plan.

  10. Whole-House Systems Approach | Department of Energy

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

    Design » Design for Efficiency » Whole-House Systems Approach Whole-House Systems Approach The whole-house systems approach used to design this ultra-efficient home at Lone Star Ranch in Frisco, Texas, resulted in a home that consumes no more energy that its renewable energy systems produce. Photo from Building Science Corporation. The whole-house systems approach used to design this ultra-efficient home at Lone Star Ranch in Frisco, Texas, resulted in a home that consumes no more energy that

  11. Screening Hofmann Compounds as CO{sub 2} Sorbents: Nontraditional Synthetic Route to Over 40 Different Pore-Functionalized and Flexible Pillared Cyanonickelates

    SciTech Connect (OSTI)

    Culp, Jeffrey T.; Madden, Catherine; Kauffman, Kristi; Shi, Fan; Matranga, Christopher

    2013-04-15

    A simple reaction scheme based on the heterogeneous intercalation of pillaring ligands (HIPLs) provides a convenient method for systematically tuning pore size, pore functionality, and network flexibility in an extended series of pillared cyanonickelates (PICNICs), commonly referred to as Hofmann compounds. The versatility of the approach is demonstrated through the preparation of over 40 different PICNICs containing pillar ligands ranging from ?4 to ?15 Å in length and modified with a wide range of functional groups, including fluoro, aldehyde, alkylamine, alkyl, aryl, trifluoromethyl, ester, nitro, ether, and nonmetalated 4,4?-bipyrimidine. The HIPL method involves reaction of a suspension of preformed polymeric sheets of powdered anhydrous nickel cyanide with an appropriate pillar ligand in refluxing organic solvent, resulting in the conversion of the planar [Ni{sub 2}(CN){sub 4}]{sub n} networks into polycrystalline three-dimensional porous frameworks containing the organic pillar ligand. Preliminary investigations indicate that the HIPL reaction is also amenable to forming Co(L)Ni(CN){sub 4}, Fe(L)Ni(CN){sub 4}, and Fe(L)Pd(CN){sub 4} networks. The materials show variable adsorption behavior for CO{sub 2} depending on the pillar length and pillar functionalization. Several compounds show structurally flexible behavior during the adsorption and desorption of CO{sub 2}. Interestingly, the newly discovered flexible compounds include two flexible Fe(L)Ni(CN){sub 4} derivatives that are structurally related to previously reported porous spin-crossover compounds. The preparations of 20 pillar ligands based on ring-functionalized 4,4?-dipyridyls, 1,4-bis(4- pyridyl)benzenes, and N-(4-pyridyl)isonicotinamides are also described.

  12. Programmed Nanomaterial Assemblies in Large Scales: Applications of Synthetic and Genetically- Engineered Peptides to Bridge Nano-Assemblies and Macro-Assemblies

    SciTech Connect (OSTI)

    Matsui, Hiroshi

    2014-09-09

    Work is reported in these areas: Large-scale & reconfigurable 3D structures of precise nanoparticle assemblies in self-assembled collagen peptide grids; Binary QD-Au NP 3D superlattices assembled with collagen-like peptides and energy transfer between QD and Au NP in 3D peptide frameworks; Catalytic peptides discovered by new hydrogel-based combinatorial phage display approach and their enzyme-mimicking 2D assembly; New autonomous motors of metal-organic frameworks (MOFs) powered by reorganization of self-assembled peptides at interfaces; Biomimetic assembly of proteins into microcapsules on oil-in-water droplets with structural reinforcement via biomolecular recognition-based cross-linking of surface peptides; and Biomimetic fabrication of strong freestanding genetically-engineered collagen peptide films reinforced by quantum dot joints. We gained the broad knowledge about biomimetic material assembly from nanoscale to microscale ranges by coassembling peptides and NPs via biomolecular recognition. We discovered: Genetically-engineered collagen-like peptides can be self-assembled with Au NPs to generate 3D superlattices in large volumes (> ?m{sup 3}); The assembly of the 3D peptide-Au NP superstructures is dynamic and the interparticle distance changes with assembly time as the reconfiguration of structure is triggered by pH change; QDs/NPs can be assembled with the peptide frameworks to generate 3D superlattices and these QDs/NPs can be electronically coupled for the efficient energy transfer; The controlled assembly of catalytic peptides mimicking the catalytic pocket of enzymes can catalyze chemical reactions with high selectivity; and, For the bacteria-mimicking swimmer fabrication, peptide-MOF superlattices can power translational and propellant motions by the reconfiguration of peptide assembly at the MOF-liquid interface.

  13. Deadline for NREL Director's Fellowships Approaching - News Releases | NREL

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

    Deadline for NREL Director's Fellowships Approaching August 20, 2013 The September 30 application deadline for scientists and engineers interested in participating in the Energy Department's National Renewable Energy Laboratory (NREL) Director's Fellowships program is quickly approaching. NREL Director's Fellowships are designed to attract the next generation of exceptionally qualified scientists and engineers with outstanding talent and credentials in renewable energy research and related

  14. CMI Webinar: Recycling of Rare Earth Elements: A Microbiological Approach |

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

    Critical Materials Institute Recycling of Rare Earth Elements: A Microbiological Approach The CMI Webinar series includes a presentation CMI Webinar: Recycling of Rare Earth Elements: A Microbiological Approach by David Reed, Idaho National Laboratory (INL), on April 23, 2015. The recording of the webinar runs nearly 39 minutes (38:52

  15. Criteria Review and Approach Documents, National Nuclear Security Administration

    Broader source: Energy.gov [DOE]

    A section of Appendix C to DOE G 226.1-2A "Federal Line Management Oversight of Department of Energy Nuclear Facilities." Consists of National Nuclear Security Administration Criteria Review and Approach Documents (CRADS). CRADs provide a recommended approach and the types of information to gather to assess elements of a DOE contractor's programs.

  16. Criteria & Review Approach Documents, National Nuclear Security Administration

    Broader source: Energy.gov [DOE]

    A section of Appendix C to DOE G 226.1-2A "Federal Line Management Oversight of Department of Energy Nuclear Facilities." Consists of a table of National Nuclear Security Administration Criteria Review and Approach Documents (CRADS) with links to the CRADs. CRADs provide a recommended approach and the types of information to gather to assess elements of a DOE contractor's programs.

  17. Energize Phoenix: Testing Innovative Approaches to Engaging Consumers

    Broader source: Energy.gov [DOE]

    Residential Energy Efficiency Solutions Conference: Testing Innovative Approaches to Engaging Consumers, July 10, 2012. Presents an up-close look at the residential rebate match program by Energize Phoenix, including the process and results.

  18. A Novel Approach for Introducing 3D Cloud Spatial Structure

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

    Novel Approach for Introducing 3D Cloud Spatial Structure Into 1D Radiative Transfer For original submission and image(s), see ARM Research Highlights http:www.arm.govscience...

  19. Application for State Highway Approach | Open Energy Information

    Open Energy Info (EERE)

    to: navigation, search OpenEI Reference LibraryAdd to library Form: Application for State Highway Approach Abstract This page links to the ODOT Application for State Highway...

  20. Integrated approach to economical, reliable, safe nuclear power production

    SciTech Connect (OSTI)

    Not Available

    1982-06-01

    An Integrated Approach to Economical, Reliable, Safe Nuclear Power Production is the latest evolution of a concept which originated with the Defense-in-Depth philosophy of the nuclear industry. As Defense-in-Depth provided a framework for viewing physical barriers and equipment redundancy, the Integrated Approach gives a framework for viewing nuclear power production in terms of functions and institutions. In the Integrated Approach, four plant Goals are defined (Normal Operation, Core and Plant Protection, Containment Integrity and Emergency Preparedness) with the attendant Functional and Institutional Classifications that support them. The Integrated Approach provides a systematic perspective that combines the economic objective of reliable power production with the safety objective of consistent, controlled plant operation.

  1. Oak Ridge: Approaching 4 Million Safe Work Hours

    Broader source: Energy.gov [DOE]

    Workers at URS | CH2M Oak Ridge (UCOR), the prime contractor for EM’s Oak Ridge cleanup, are approaching a milestone of 4 million safe work hours without a lost time away incident.

  2. Approaches to renewable energy storage focus of Frontiers in...

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

    Frontiers in Science Talk Approaches to renewable energy storage focus of Frontiers in Science talk Albert Migliori will give the series of public talks, titled, "Use It, Lose It, ...

  3. Approaches for Developing Uniform Hazard Spectra at Critical Facilities |

    Office of Environmental Management (EM)

    Department of Energy Approaches for Developing Uniform Hazard Spectra at Critical Facilities Andrew Maham, Tom Houston, Carl J. Costantino DOE NPH Meeting, Germantown, MD October 2014 PDF icon Approaches for Developing Uniform Hazard Spectra at Critical Facilities More Documents & Publications Verification Method for SSI Problems with Extended Parameter Ranges A Study of SSI Effects Incorporating Seismic Wave Incoherence within the DOE Complex Wind Forecast Improvement Project Southern

  4. A Lie algebraic approach to the Kondo problem

    SciTech Connect (OSTI)

    Rajeev, S.G.

    2010-04-15

    The Kondo problem is approached using the unitary Lie algebra of spin-singlet fermion bilinears. In the limit when the number of values of the spin N goes to infinity the theory approaches a classical limit, which still requires a renormalization. We determine the ground state of this renormalized theory. Then we construct a quantum theory around this classical limit, which amounts to recovering the case of finite N.

  5. A Simpler, Smarter and More Cost Effective Approach to Regulation |

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

    Department of Energy A Simpler, Smarter and More Cost Effective Approach to Regulation A Simpler, Smarter and More Cost Effective Approach to Regulation May 26, 2011 - 9:17am Addthis Sean Lev Sean Lev Acting General Counsel & Deputy General Counsel, Environment & Nuclear Programs What does this mean for me? The Department projects a more than 90% reduction in the paperwork burden imposed on recipients of the Department of Energy's financial assistance. The Department is also working

  6. High-Throughput Experimental Approach Capabilities | Materials Science |

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

    NREL High-Throughput Experimental Approach Capabilities An image of a triangular diagram with cobalt oxide at the top vertex, zinc oxide at the lower left vertex, and nickel oxide at the lower right vertex. Colored section in upper half indicates conductivity of materials at constant oxygen partial pressure and temperature. Highest conductivity is represented by yellow and is for materials in the upper right sector. NREL's high-throughput experimental approach is based on the extensive set

  7. New Directions: Toward a community emissions approach (Journal Article) |

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect New Directions: Toward a community emissions approach Citation Details In-Document Search Title: New Directions: Toward a community emissions approach Emissions inventories accounting for anthropogenic and natural inputs to the atmosphere provide critical information for modeling and observational systems that inform air quality and climate science and policy. This article argues that the need for accurate, timely and traceable inventories requires a broad science-policy

  8. OPTICAL CROSS-CORRELATION FILTERS: AN ECONOMICAL APPROACH FOR IDENTIFYING

    Office of Scientific and Technical Information (OSTI)

    SNe Ia AND ESTIMATING THEIR REDSHIFTS (Journal Article) | SciTech Connect OPTICAL CROSS-CORRELATION FILTERS: AN ECONOMICAL APPROACH FOR IDENTIFYING SNe Ia AND ESTIMATING THEIR REDSHIFTS Citation Details In-Document Search Title: OPTICAL CROSS-CORRELATION FILTERS: AN ECONOMICAL APPROACH FOR IDENTIFYING SNe Ia AND ESTIMATING THEIR REDSHIFTS Large photometric surveys of transient phenomena, such as Panoramic Survey Telescope and Rapid Response System and Large Synoptic Survey Telescope, will

  9. Physics-based statistical learning approach to mesoscopic model selection

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | SciTech Connect Physics-based statistical learning approach to mesoscopic model selection Citation Details In-Document Search This content will become publicly available on November 8, 2016 Title: Physics-based statistical learning approach to mesoscopic model selection Authors: Taverniers, Søren ; Haut, Terry S. ; Barros, Kipton ; Alexander, Francis J. ; Lookman, Turab Publication Date: 2015-11-09 OSTI Identifier: 1225546 Grant/Contract Number: AC52-06NA25396;

  10. Reactive facies: An approach for parameterizing field-scale reactive

    Office of Scientific and Technical Information (OSTI)

    transport models using geophysical methods (Journal Article) | SciTech Connect Reactive facies: An approach for parameterizing field-scale reactive transport models using geophysical methods Citation Details In-Document Search Title: Reactive facies: An approach for parameterizing field-scale reactive transport models using geophysical methods Authors: Sassen, D. ; Hubbard, S. S. ; Bea, S. ; Spycher, N. ; Chen, J. ; Spycher, N. ; Denham, M. Publication Date: 2012-05-01 OSTI Identifier:

  11. PEM Fuel Cell Technology, Key Research Needs and Approaches (Presentation)

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

    | Department of Energy Technology, Key Research Needs and Approaches (Presentation) PEM Fuel Cell Technology, Key Research Needs and Approaches (Presentation) Presented at the DOE Fuel Cell Pre-Solicitation Workshop held January 23-24, 2008 in Golden, Colorado. PDF icon fuelcell_pre-solicitation_wkshop_jan08_jarvi.pdf More Documents & Publications Idaho Operations AMWTP Fact Sheet Heating Ventilation and Air Conditioning Efficiency Greenpower Trap Mufflerl System

  12. Passive Catalytic Approach to Low Temperature NOx Emission Abatement |

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

    Department of Energy Catalytic Approach to Low Temperature NOx Emission Abatement Passive Catalytic Approach to Low Temperature NOx Emission Abatement Numerically evaluated and optimized proposed state-of-the-art passive catalytic technology designed to reduce NOx released during vehicle cold start portion of the FTP-75 cycle PDF icon deer11_henry.pdf More Documents & Publications Advanced Technology Light Duty Diesel Aftertreatment System Cummins' Next Generation Tier 2, Bin 2 Light

  13. Innovative Approaches to Improving Engine Efficiency | Department of Energy

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

    Approaches to Improving Engine Efficiency Innovative Approaches to Improving Engine Efficiency Presentation given at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT). PDF icon deer07_eckerle.pdf More Documents & Publications Overview of High-Efficiency Engine Technologies Vehicle Technologies Office Merit Review

  14. Collective Dissipation from Saddle to Scission in a Microscopic Approach

    Office of Scientific and Technical Information (OSTI)

    (Technical Report) | SciTech Connect Collective Dissipation from Saddle to Scission in a Microscopic Approach Citation Details In-Document Search Title: Collective Dissipation from Saddle to Scission in a Microscopic Approach Authors: Younes, W ; Gogny, D Publication Date: 2012-09-28 OSTI Identifier: 1053675 Report Number(s): LLNL-TR-586694 DOE Contract Number: W-7405-ENG-48 Resource Type: Technical Report Research Org: Lawrence Livermore National Laboratory (LLNL), Livermore, CA Sponsoring

  15. Comparison of Joint Modeling Approaches Including Eulerian Sliding

    Office of Scientific and Technical Information (OSTI)

    Interfaces (Technical Report) | SciTech Connect Comparison of Joint Modeling Approaches Including Eulerian Sliding Interfaces Citation Details In-Document Search Title: Comparison of Joint Modeling Approaches Including Eulerian Sliding Interfaces Accurate representation of discontinuities such as joints and faults is a key ingredient for high fidelity modeling of shock propagation in geologic media. The following study was done to improve treatment of discontinuities (joints) in the Eulerian

  16. Component-Centered Approach Towards Oxidation Studies of Complex Biofuels.

    Office of Scientific and Technical Information (OSTI)

    (Conference) | SciTech Connect Conference: Component-Centered Approach Towards Oxidation Studies of Complex Biofuels. Citation Details In-Document Search Title: Component-Centered Approach Towards Oxidation Studies of Complex Biofuels. Abstract not provided. Authors: Rotavera, Brandon ; Welz, Oliver ; Sheps, Leonid ; Scheer, Adam Michael ; Savee, John David ; Osborn, David L. ; Simmons, Blake ; Taatjes, Craig A. ; Ali, Mohamad A. ; Lee, Taek Soon ; Violi, Angela Publication Date: 2013-07-01

  17. Diamondoid Coating Enables Disruptive Approach for Chemical and Magnetic

    Office of Scientific and Technical Information (OSTI)

    Imaging with 10 nm Spatial Resolution (Journal Article) | SciTech Connect Diamondoid Coating Enables Disruptive Approach for Chemical and Magnetic Imaging with 10 nm Spatial Resolution Citation Details In-Document Search Title: Diamondoid Coating Enables Disruptive Approach for Chemical and Magnetic Imaging with 10 nm Spatial Resolution Authors: Ishiwata, Hitoshi ; Acremann, Yves ; Scholl, Andreas ; Hellwig, Olav ; Dobisz, Elizabeth ; Doran, Andrew ; Tkachenko, Boryslav A. ; Fokin, Andrey A.

  18. Electroless Atomic Layer Deposition: A Scalable Approach to Surface

    Office of Scientific and Technical Information (OSTI)

    Modified Metal Powders. (Journal Article) | SciTech Connect Electroless Atomic Layer Deposition: A Scalable Approach to Surface Modified Metal Powders. Citation Details In-Document Search Title: Electroless Atomic Layer Deposition: A Scalable Approach to Surface Modified Metal Powders. Abstract not provided. Authors: Cappillino, Patrick ; Robinson, David ; El Gabaly Marquez, Farid ; Sugar, Joshua Daniel ; Cai, Trevor ; Stickney, John ; Liu, Zhi Publication Date: 2014-01-01 OSTI Identifier:

  19. A GENERALIZED STOCHASTIC COLLOCATION APPROACH TO CONSTRAINED OPTIMIZATION

    Office of Scientific and Technical Information (OSTI)

    FOR RANDOM DATA IDENTIFICATION PROBLEMS (Journal Article) | SciTech Connect A GENERALIZED STOCHASTIC COLLOCATION APPROACH TO CONSTRAINED OPTIMIZATION FOR RANDOM DATA IDENTIFICATION PROBLEMS Citation Details In-Document Search Title: A GENERALIZED STOCHASTIC COLLOCATION APPROACH TO CONSTRAINED OPTIMIZATION FOR RANDOM DATA IDENTIFICATION PROBLEMS We present a scalable, parallel mechanism for stochastic identification/control for problems constrained by partial differential equations with

  20. A Model-Based Approach to Scintillator/Photomultiplier System

    Office of Scientific and Technical Information (OSTI)

    Characterization (Technical Report) | SciTech Connect Technical Report: A Model-Based Approach to Scintillator/Photomultiplier System Characterization Citation Details In-Document Search Title: A Model-Based Approach to Scintillator/Photomultiplier System Characterization Abstract not provided. Authors: Candy, J. V. [1] + Show Author Affiliations Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States) Publication Date: 2014-12-15 OSTI Identifier: 1179437 Report Number(s):

  1. A comprehensive approach to decipher biological computation to achieve next

    Office of Scientific and Technical Information (OSTI)

    generation high-performance exascale computing. (Technical Report) | SciTech Connect Technical Report: A comprehensive approach to decipher biological computation to achieve next generation high-performance exascale computing. Citation Details In-Document Search Title: A comprehensive approach to decipher biological computation to achieve next generation high-performance exascale computing. The human brain (volume=1200cm3) consumes 20W and is capable of performing>10%5E16 operations/s.

  2. Approaches to Evaluating and Improving Lithium-Ion Battery Safety.

    Office of Scientific and Technical Information (OSTI)

    (Conference) | SciTech Connect Conference: Approaches to Evaluating and Improving Lithium-Ion Battery Safety. Citation Details In-Document Search Title: Approaches to Evaluating and Improving Lithium-Ion Battery Safety. Authors: Orendorff, Christopher ; Lamb, Joshua ; Fenton, Kyle R ; Steele, Leigh Anna Marie Publication Date: 2013-01-01 OSTI Identifier: 1063410 Report Number(s): SAND2013-0610C DOE Contract Number: AC04-94AL85000 Resource Type: Conference Resource Relation: Conference:

  3. Bayesian approaches for combining computational model output and physical

    Office of Scientific and Technical Information (OSTI)

    observations (Conference) | SciTech Connect Bayesian approaches for combining computational model output and physical observations Citation Details In-Document Search Title: Bayesian approaches for combining computational model output and physical observations Authors: Higdon, David M [1] ; Lawrence, Earl [1] ; Heitmann, Katrin [2] ; Habib, Salman [2] + Show Author Affiliations Los Alamos National Laboratory ANL Publication Date: 2011-07-25 OSTI Identifier: 1084581 Report Number(s):

  4. A comprehensive approach to decipher biological computation to achieve next

    Office of Scientific and Technical Information (OSTI)

    generation high-performance exascale computing. (Technical Report) | SciTech Connect A comprehensive approach to decipher biological computation to achieve next generation high-performance exascale computing. Citation Details In-Document Search Title: A comprehensive approach to decipher biological computation to achieve next generation high-performance exascale computing. The human brain (volume=1200cm3) consumes 20W and is capable of performing>10%5E16 operations/s. Current

  5. Partnering with Vermont for an Innovative Approach to Resilience |

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

    Department of Energy Partnering with Vermont for an Innovative Approach to Resilience Partnering with Vermont for an Innovative Approach to Resilience November 18, 2014 - 3:27pm Addthis Dr. Imre Gyuk Dr. Imre Gyuk Energy Storage Program Manager, Office of Electricity Delivery and Energy Reliability How can I participate? Check out our Infographic on Understanding the Grid. Send us your questions about how the grid works using #GridWeek on Facebook, Twitter and Google+. Join the #GridWeek

  6. Advanced Methods Approach to Hybrid Powertrain Systems Optimization of a

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

    Transit Bus Application | Department of Energy Methods Approach to Hybrid Powertrain Systems Optimization of a Transit Bus Application Advanced Methods Approach to Hybrid Powertrain Systems Optimization of a Transit Bus Application Design refinements of the GTB-40 mass-transit bus include new optimization processes, subsystem, and powertrain system requirements along with traction motor, battery, and APU development and integration PDF icon deer09_hennessy.pdf More Documents &

  7. An Approach to Sustainability that Improves Environmental and Safety

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

    Performance | Department of Energy An Approach to Sustainability that Improves Environmental and Safety Performance An Approach to Sustainability that Improves Environmental and Safety Performance August 2009 Presenter: Kathy Carney, Oak Ridge National Laboratory Track 7-7 Topics Covered: A Sustainable ORNL Sustainability Why were EMS's so successful? ORNL's Sustainability Success Model: Simultaneous Excellence EnergyThe goal of the Laboratory Agenda is to promote simultaneous excellence An

  8. An integrated approach towards efficient, scalable, and low cost

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

    thermoelectric waste heat recovery devices for vehicles | Department of Energy Discusses isostatic pressing for scalable TE elements, properties characterization of nanostructured ZnO materials, and heat exchanger designs to improve device efficiency PDF icon huxtable.pdf More Documents & Publications An integrated approach towards efficient, scalable, and low cost thermoelectric waste heat recovery devices for vehicles An integrated approach towards efficient, scalable, and low cost

  9. Are There Practical Approaches for Achieving the Theoretical Maximum Engine

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

    Efficiency? | Department of Energy Are There Practical Approaches for Achieving the Theoretical Maximum Engine Efficiency? Are There Practical Approaches for Achieving the Theoretical Maximum Engine Efficiency? 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: University of Wisconsin, Madison PDF icon 2004_deer_foster.pdf More Documents & Publications Fuel Modification t Facilitate Future Combustion Regimes? The Next ICE Age The Next ICE Age

  10. Breakthrough antibacterial approach could resolve serious skin infections

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

    Antibacterial approach could resolve skin infections Breakthrough antibacterial approach could resolve serious skin infections Like a protective tent over a colony of harmful bacteria, biofilms make the treatment of skin infections especially difficult. August 26, 2014 Artist's rendition of a cross section of skin layers (stratum corneum, epidermis and dermis) showing topical application of an ionic liquid for combating a skin-borne bacterial infection. The ionic liquid can be formulated with

  11. Critical Materials Institute uses the Materials Genome approach to

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

    accelerate rare-earth replacement | Critical Materials Institute Critical Materials Institute uses the Materials Genome approach to accelerate rare-earth replacement CMI research team at a light manufacturing facility Critical Materials Institute uses the Materials Genome approach to accelerate rare-earth replacement The Critical Materials Institute, led by the U.S. Department of Energy's (DOE's) Ames Laboratory, has invented two new phosphors in one year of research, demonstrating the power

  12. NIST approach to Promoting US Innovation and Industrial Competitiveness |

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

    Department of Energy NIST approach to Promoting US Innovation and Industrial Competitiveness NIST approach to Promoting US Innovation and Industrial Competitiveness Breakout Session 1: New Developments and Hot Topics Session 1-A: Biomass and the U.S. Competitive Advantages for Manufacturing Clean Energy Products Gary Anderson, Economist, NIST PDF icon b13_anderson_1-a.pdf More Documents & Publications Benefit-Cost Evaluation of U.S. DOE Investment in Energy Storage Technologies for

  13. Potential Carriers and Approaches for Hydrogen Delivery | Department of

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

    Energy Carriers and Approaches for Hydrogen Delivery Potential Carriers and Approaches for Hydrogen Delivery Presentation by Matthew Hooks of TIAX at the Joint Meeting on Hydrogen Delivery Modeling and Analysis, May 8-9, 2007 PDF icon deliv_analysis_hooks_carriers.pdf More Documents & Publications Summary of On-Board Storage Models and Analyses Analyses of Hydrogen Storage Materials and On-Board Systems Hydrogen Storage Systems Anlaysis Working Group Meeting, December 12, 2006

  14. Imagine Education recognized for innovative approach to math education

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

    Innovative approach to math education Imagine Education recognized for innovative approach to math education Endeavored to remake the way middle-school math is taught through its first-of-its-kind, story-based, online math game, called Ko's Journey. July 20, 2011 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma

  15. Fundamental Approach to Electrode Fabrication and Failure Analysis |

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

    Department of Energy Fundamental Approach to Electrode Fabrication and Failure Analysis Fundamental Approach to Electrode Fabrication and Failure Analysis 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon es081_battaglia_2011_o.pdf More Documents & Publications Scale-up and Testing of Advanced Materials from the BATT Program Materials Scale-up and Cell Performance Analysis ATOMISTIC MODELING OF ELECTRODE MATE

  16. Common Approach to Obtaining Experimental Data for Developing Predictive

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

    NOx Absorber Models | Department of Energy Common Approach to Obtaining Experimental Data for Developing Predictive NOx Absorber Models Common Approach to Obtaining Experimental Data for Developing Predictive NOx Absorber Models 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_currier.pdf More Documents & Publications Pt-free, Perovskite-based Lean NOx Trap Catalysts Lean NOx Traps - Microstructural Studies of Real World and Model

  17. Resistive switching phenomena: A review of statistical physics approaches

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | DOE PAGES Resistive switching phenomena: A review of statistical physics approaches This content will become publicly available on August 31, 2016 « Prev Next » Title: Resistive switching phenomena: A review of statistical physics approaches Authors: Lee, Jae Sung [1] ; Lee, Shinbuhm [2] ; Noh, Tae Won [3] + Show Author Affiliations School of Physics, Korea Institute for Advanced Study, Seoul 130-722, South Korea Materials Science and Technology Division, Oak Ridge

  18. Case Study: Innovative Energy Efficiency Approaches in NOAA's

    Energy Savers [EERE]

    Environmental Security Computing Center in Fairmont, West Virginia | Department of Energy Innovative Energy Efficiency Approaches in NOAA's Environmental Security Computing Center in Fairmont, West Virginia Case Study: Innovative Energy Efficiency Approaches in NOAA's Environmental Security Computing Center in Fairmont, West Virginia Document summarizes three data centers evaluated for potential energy efficiency improvements. These three data centers represent a broad cross section of the

  19. Systems Approach to New Transportation Fuels | Department of Energy

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

    Systems Approach to New Transportation Fuels Systems Approach to New Transportation Fuels Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs. PDF icon 2006_deer_brinkman.pdf More Documents & Publications Vehicle Technologies Office: 2008-2009 Fuels Technologies R&D Progress Report Vehicle Technologies Office: 2010 Fuel Technologies R&D Annual Progress Report Efficient

  20. The Collegiate Wind Competition Is Approaching Fast: Meet the Teams |

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

    Department of Energy Is Approaching Fast: Meet the Teams The Collegiate Wind Competition Is Approaching Fast: Meet the Teams April 25, 2014 - 10:14am Addthis <strong>UNIVERSITY OF MASSACHUSETTS LOWELL</strong> Back row: Isaac Grulon, Dean Kennedy, Erika Sjoberg, Albert Andino, Robert Leboeuf, Gregory Lennartz, Michael Dube. Middle row: David Phung, Jigar Patel, Alexandre Sampaio, Patrick Logan, Jeffrey Chung, Peter Jones. Front row: Parth Patel, Donna DiBattista, Meaghan Riley,

  1. Managing corporate capabilities:theory and industry approaches.

    SciTech Connect (OSTI)

    Slavin, Adam M.

    2007-02-01

    This study characterizes theoretical and industry approaches to organizational capabilities management and ascertains whether there is a distinct ''best practice'' in this regard. We consider both physical capabilities, such as technical disciplines and infrastructure, and non-physical capabilities such as corporate culture and organizational procedures. We examine Resource-Based Theory (RBT), which is the predominant organizational management theory focused on capabilities. RBT seeks to explain the effect of capabilities on competitiveness, and thus provide a basis for investment/divestment decisions. We then analyze industry approaches described to us in interviews with representatives from Goodyear, 3M, Intel, Ford, NASA, Lockheed Martin, and Boeing. We found diversity amongst the industry capability management approaches. Although all organizations manage capabilities and consider them to some degree in their strategies, no two approaches that we observed were identical. Furthermore, we observed that theory is not a strong driver in this regard. No organization used the term ''Resource-Based Theory'', nor did any organization mention any other guiding theory or practice from the organizational management literature when explaining their capabilities management approaches. As such, we concluded that there is no single best practice for capabilities management. Nevertheless, we believe that RBT and the diverse industry experiences described herein can provide useful insights to support development of capabilities management approaches.

  2. Theoretical, Methodological, and Empirical Approaches to Cost Savings: A Compendium

    SciTech Connect (OSTI)

    M Weimar

    1998-12-10

    This publication summarizes and contains the original documentation for understanding why the U.S. Department of Energy's (DOE's) privatization approach provides cost savings and the different approaches that could be used in calculating cost savings for the Tank Waste Remediation System (TWRS) Phase I contract. The initial section summarizes the approaches in the different papers. The appendices are the individual source papers which have been reviewed by individuals outside of the Pacific Northwest National Laboratory and the TWRS Program. Appendix A provides a theoretical basis for and estimate of the level of savings that can be" obtained from a fixed-priced contract with performance risk maintained by the contractor. Appendix B provides the methodology for determining cost savings when comparing a fixed-priced contractor with a Management and Operations (M&O) contractor (cost-plus contractor). Appendix C summarizes the economic model used to calculate cost savings and provides hypothetical output from preliminary calculations. Appendix D provides the summary of the approach for the DOE-Richland Operations Office (RL) estimate of the M&O contractor to perform the same work as BNFL Inc. Appendix E contains information on cost growth and per metric ton of glass costs for high-level waste at two other DOE sites, West Valley and Savannah River. Appendix F addresses a risk allocation analysis of the BNFL proposal that indicates,that the current approach is still better than the alternative.

  3. Advanced Safeguards Approaches for New TRU Fuel Fabrication Facilities

    SciTech Connect (OSTI)

    Durst, Philip C.; Ehinger, Michael H.; Boyer, Brian; Therios, Ike; Bean, Robert; Dougan, A.; Tolk, K.

    2007-12-15

    This second report in a series of three reviews possible safeguards approaches for the new transuranic (TRU) fuel fabrication processes to be deployed at AFCF – specifically, the ceramic TRU (MOX) fuel fabrication line and the metallic (pyroprocessing) line. The most common TRU fuel has been fuel composed of mixed plutonium and uranium dioxide, referred to as “MOX”. However, under the Advanced Fuel Cycle projects custom-made fuels with higher contents of neptunium, americium, and curium may also be produced to evaluate if these “minor actinides” can be effectively burned and transmuted through irradiation in the ABR. A third and final report in this series will evaluate and review the advanced safeguards approach options for the ABR. In reviewing and developing the advanced safeguards approach for the new TRU fuel fabrication processes envisioned for AFCF, the existing international (IAEA) safeguards approach at the Plutonium Fuel Production Facility (PFPF) and the conceptual approach planned for the new J-MOX facility in Japan have been considered as a starting point of reference. The pyro-metallurgical reprocessing and fuel fabrication process at EBR-II near Idaho Falls also provided insight for safeguarding the additional metallic pyroprocessing fuel fabrication line planned for AFCF.

  4. Alternative future environmental regulatory approaches for petroleum refineries.

    SciTech Connect (OSTI)

    Elcock, D.; Gasper, J.; Moses, D. O.; Emerson, D.; Arguerro, R.; Environmental Assessment; DOE; Analytical Services, Inc.

    2000-01-01

    Recently, many industrial, regulatory, and community leaders have expressed concern that the current environmental regulatory structure disregards multimedia environmental impacts, provides few incentives to develop and use new technologies, and fails to consider site-specific conditions. For the US petroleum refining industry, faced with the need to produce higher-quality fuels from poorer-quality feedstocks, such criticisms are expected to increase. This article offers two alternative environmental regulatory approaches for existing petroleum refineries to use in the future. These alternative approaches are multimedia in scope, provide for new technology development and use, and allow flexibility in the means for meeting environmental goals. They have been reviewed and critiqued by various stakeholders, including industry representatives, regulators, and local and national community and environmental organizations. The integration of stakeholder comments and findings of ongoing national and international regulatory reinvention efforts in the development of these approaches positions them for potential use by other industries in addition to petroleum refineries.

  5. Systems approach used in the Gas Centrifuge Enrichment Plant

    SciTech Connect (OSTI)

    Rooks, W.A. Jr.

    1982-01-01

    A requirement exists for effective and efficient transfer of technical knowledge from the design engineering team to the production work force. Performance-Based Training (PBT) is a systematic approach to the design, development, and implementation of technical training. This approach has been successfully used by the US Armed Forces, industry, and other organizations. The advantages of the PBT approach are: cost-effectiveness (lowest life-cycle training cost), learning effectiveness, reduced implementation time, and ease of administration. The PBT process comprises five distinctive and rigorous phases: Analysis of Job Performance, Design of Instructional Strategy, Development of Training Materials and Instructional Media, Validation of Materials and Media, and Implementation of the Instructional Program. Examples from the Gas Centrifuge Enrichment Plant (GCEP) are used to illustrate the application of PBT.

  6. Effective field theory: A modern approach to anomalous couplings

    SciTech Connect (OSTI)

    Degrande, Céline; Centre for Particle Physics and Phenomenology , Université Catholique de Louvain, Chemin du Cyclotron 2, B-1348 Louvain-la-Neuve ; Greiner, Nicolas; Max-Planck-Institut für Physik, Föhringer Ring 6, 80805 München ; Kilian, Wolfgang; University of Siegen, Fachbereich Physik, D-57068 Siegen ; Mattelaer, Olivier; Mebane, Harrison; Stelzer, Tim; Willenbrock, Scott; Zhang, Cen; Centre for Particle Physics and Phenomenology , Université Catholique de Louvain, Chemin du Cyclotron 2, B-1348 Louvain-la-Neuve

    2013-08-15

    We advocate an effective field theory approach to anomalous couplings. The effective field theory approach is the natural way to extend the standard model such that the gauge symmetries are respected. It is general enough to capture any physics beyond the standard model, yet also provides guidance as to the most likely place to see the effects of new physics. The effective field theory approach also clarifies that one need not be concerned with the violation of unitarity in scattering processes at high energy. We apply these ideas to pair production of electroweak vector bosons. -- Highlights: •We discuss the advantages of effective field theories compared to anomalous couplings. •We show that one need not be concerned with unitarity violation at high energy. •We discuss the application of effective field theory to weak boson physics.

  7. This Week In Petroleum Printer-Friendly Version

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

    limiting Argentinas production and export of natural gas, and a severe drought in Chile was reducing its hydroelectric generation. Distillate fuel for electrical generation...

  8. This Week In Petroleum Summary Printer-Friendly Version

    Gasoline and Diesel Fuel Update (EIA)

    the primary space heating fuel has declined by 16%, reducing the cold weather distillate demand response in the Northeast (Figure 2). Distillate demand for power generation also...

  9. This Week In Petroleum Printer-Friendly Version

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

    6, 2010 (Next Release on October 14, 2010) Canada is a Top Source of Refined Product Imports Last weeks edition of This Week In Petroleum focused on Canadas importance as a...

  10. Natural Gas Weekly Update, Printer-Friendly Version

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    5.30 5.91 Note: Prices were converted from per Mcf to per MMBtu using an average heat content of 1,027 Btu per cubic foot as published in Table A4 of the Annual Energy...

  11. Natural Gas Weekly Update, Printer-Friendly Version

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    6.42 6.02 Note: Prices were converted from per Mcf to per MMBtu using an average heat content of 1,027 Btu per cubic foot as published in Table A4 of the Annual Energy...

  12. Natural Gas Weekly Update, Printer-Friendly Version

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Table A4 of the Annual Energy Review 2002. Source: Energy Information Administration, Office of Oil and Gas. Storage: Working gas in storage increased to 3,254 Bcf as of Friday,...

  13. Natural Gas Weekly Update, Printer-Friendly Version

    Gasoline and Diesel Fuel Update (EIA)

    Table A2 of the Annual Energy Review 2001. Source: Energy Information Administration, Office of Oil and Gas. Storage: Working gas in storage was 2,414 Bcf as of Friday, January 9,...

  14. Natural Gas Weekly Update, Printer-Friendly Version

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    5.65 5.67 Note: Prices were converted from per Mcf to per MMBtu using an average heat content of 1,027 Btu per cubic foot as published in Table A4 of the Annual Energy...

  15. Natural Gas Weekly Update, Printer-Friendly Version

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Table A4 of the Annual Energy Review 2002. Source: Energy Information Administration, Office of Oil and Gas. Storage: Working gas in underground storage was 2,521 Bcf as of June...

  16. Natural Gas Weekly Update, Printer-Friendly Version

    Gasoline and Diesel Fuel Update (EIA)

    Table A4 of the Annual Energy Review 2002. Source: Energy Information Administration, Office of Oil and Gas. Storage: Working gas in storage as of September 2 totaled 2,669 Bcf,...

  17. Natural Gas Weekly Update, Printer-Friendly Version

    Gasoline and Diesel Fuel Update (EIA)

    Table A4 of the Annual Energy Review 2002. Source: Energy Information Administration, Office of Oil and Gas. Storage: Working gas in storage totaled 2,347 Bcf as of Friday,...

  18. Natural Gas Weekly Update, Printer-Friendly Version

    Gasoline and Diesel Fuel Update (EIA)

    Gas Monthly. Prices were converted from per Mcf to per MMBtu using an average heat content of 1,025 Btu per cubic foot as published in Table A2 of the Annual Energy...

  19. Natural Gas Weekly Update, Printer-Friendly Version

    Gasoline and Diesel Fuel Update (EIA)

    Table A2 of the Annual Energy Review 2001. Source: Energy Information Administration, Office of Oil and Gas. Storage: Working gas in storage was 821 Bcf as of May 2, according to...

  20. Natural Gas Weekly Update, Printer-Friendly Version

    Gasoline and Diesel Fuel Update (EIA)

    Table A4 of the Annual Energy Review 2002. Source: Energy Information Administration, Office of Oil and Gas. Storage: Working gas inventories increased to 1,904 Bcf as of Friday,...