Sample records for friendly synthetic approaches

  1. Library of libraries: A novel approach in synthetic combinatorial libraries

    E-Print Network [OSTI]

    Lam, Kit S.

    Library of libraries: A novel approach in synthetic combinatorial libraries Nikolai F. Sepetov peptide libraries for pharmacological purposes is not necessarily to find the most active peptide can be used subsequently for developing a drug. Therefore a library of motifs can give as much or more

  2. User-friendly and intuitive graphical approach to the design of thermoelectric cooling systems

    E-Print Network [OSTI]

    User-friendly and intuitive graphical approach to the design of thermoelectric cooling systems)-based active cooling system, including the heatsink role. The method is simple and intuitive and provides com- prehensive information about the cooling system such as its feasibility, required heatsink, the TEC current

  3. Meta-DNA: A DNA-Based Approach to Synthetic Harish Chandran1

    E-Print Network [OSTI]

    Reif, John H.

    Meta-DNA: A DNA-Based Approach to Synthetic Biology Harish Chandran1 harish@cs.duke.edu Nikhil taken here is to develop a biochemical system which we call meta-DNA (abbre- viated as mDNA), based entirely on strands of DNA as the only component molecules. Our work leverages prior work

  4. Keep Your Friends Close and Your Facebook Friends Closer: A Multiplex Network Approach to the Analysis of Offline and Online Social Ties

    E-Print Network [OSTI]

    Hristova, Desislava; Mascolo, Cecilia

    2014-01-01T23:59:59.000Z

    Social media allow for an unprecedented amount of interaction between people online. A fundamental aspect of human social behavior, however, is the tendency of people to associate themselves with like-minded individuals, forming homogeneous social circles both online and offline. In this work, we apply a new model that allows us to distinguish between social ties of varying strength, and to observe evidence of homophily with regards to politics, music, health, residential sector & year in college, within the online and offline social network of 74 college students. We present a multiplex network approach to social tie strength, here applied to mobile communication data - calls, text messages, and co-location, allowing us to dimensionally identify relationships by considering the number of communication channels utilized between students. We find that strong social ties are characterized by maximal use of communication channels, while weak ties by minimal use. We are able to identify 75% of close friendshi...

  5. Friends'T he Friends'Friends'Friends'

    E-Print Network [OSTI]

    Levi, Ran

    evening, this time speaking to us on Ernst Hanfstaengl (1887-1975), a mentor to Hitler and friend international figure, whose wife once prevented Hitler from committing suicide, and also give us yet another Road, Aberdeen Thursday 15 November 2007 7.30 pm Hitler's Mentor ­ Ernst Hanfstaengl by Jack Webster

  6. Synthetic Fuel

    ScienceCinema (OSTI)

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

    2010-01-08T23:59:59.000Z

    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

  7. SNM neutron detection using a time-gated synthetic aperture hybrid approach

    SciTech Connect (OSTI)

    Molinar, M.; Yi, C.; Edgar, C. A.; Manalo, K.; Chin, M.; Sjoden, G. [Nuclear and Radiological Engineering Program, George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 770 State Street, Atlanta GA 30332-0745 (United States)

    2013-07-01T23:59:59.000Z

    This work focuses on using forward and adjoint transport in a hybrid application of 3-D deterministic (PENTRAN) and Monte Carlo (MCNP5) codes to model a series of neutron detector blocks. These blocks, or 'channels, ' contain a unique set of moderators with 4 atm He-3 detectors tuned to detect and profile a gross energy spectrum of a passing neutron (SNM) source. Ganging the units together as a large area system enables one to apply time gating the source-detector response to maximize signal to noise responses from a passing source with minimal background; multiple units may be positioned as a collective synthetic aperture detector array to be used as a way of performing real time neutron spectroscopy for detecting special nuclear materials in moving vehicles. The initial design, detector response coupling, confirmation of initial design functionality using adjoint transport calculations, and realistic simulation using PENTRAN and MCNP5 are presented. Future work will include optimization and application to realistic scenarios and additional sources. (authors)

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

    SciTech Connect (OSTI)

    Allendorf, Mark D. (Sandia National Laboratories, Livermore, CA); Ambrosini, Andrea; Diver, Richard B., Jr.; Siegel, Nathan Phillip; Miller, James Edward; Gelbard, Fred; Evans, Lindsey R.

    2009-01-01T23:59:59.000Z

    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.

  9. Friends of Doernbecher Circle of Friends Newsletter

    E-Print Network [OSTI]

    Chapman, Michael S.

    Chapter Events Oswego Friends Shopping Extravaganza--Nov. 5 Oswego Friends of Doernbecher is happy 19th at Willamette Valley Country Club proved to be an enormous success! Thanks to a fantastic team photographed many of the Friends events and would be happy to help with yours. Invite Bill to your next chapter

  10. future science group 9ISSN 1759-726910.4155/BFS.11.151 2012 Future Science Ltd Synthetic biology approaches to biofuel production

    E-Print Network [OSTI]

    Hasty, Jeff

    approaches to biofuel production Editorial Biofuels (2012) 3(1), 9­12 "...it is important for synthetic there is a tendency, par- ticularly in the algae biofuel space, to prioritize high yields without sufficient regard large enough volumes of biofuels at a low enough cost to make this significant leap in the national

  11. An engineering approach to characterizing synthetic-based drilling fluids for deepwater and extended reach drilling applications

    SciTech Connect (OSTI)

    Dye, W.M. [Baker Hughes INTEQ, Houston, TX (United States); Robinson, G.; Mullen, G.A.

    1998-12-31T23:59:59.000Z

    Rheological techniques currently employed to characterize drilling fluids are based upon models and instrumentation that were in existence over forty years ago. A great deal of literature exists that questions the degree to which these techniques address the requirements placed on drilling muds in today`s drilling environment. The solution to many of the problems facing companies operating in deepwater requires an in-depth understanding of the rheological properties of synthetic-based drilling muds. These problems include lost circulation, hole cleaning and barite sag. This paper discusses the application of sophisticated rheological instrumentation and techniques that specifically address the needs of deepwater drilling operations. Focus has been placed on studying the gel structure of synthetics, particularly at low temperatures, in order to provide engineered solutions to get strength-related problems encountered in deepwater.

  12. Cyber Friendly Fire

    SciTech Connect (OSTI)

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

    2011-09-01T23:59:59.000Z

    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.

  13. The time as an emergent property of quantum mechanics, a synthetic description of a first experimental approach

    E-Print Network [OSTI]

    E Moreva; G Brida; M Gramegna; V Giovannetti; L Maccone; M Genovese

    2015-02-11T23:59:59.000Z

    The "problem of time" in present physics substantially consists in the fact that a straightforward quantization of the general relativistic evolution equation and constraints generates for the Universe wave function the Wheeler-De Witt equation, which describes a static Universe. Page and Wootters considered the fact that there exist states of a system composed by entangled subsystems that are stationary, but one can interpret the component subsystems as evolving: this leads them to suppose that the global state of the universe can be envisaged as one of this static entangled state, whereas the state of the subsystems can evolve. Here we synthetically present an experiment, based on PDC polarization entangled photons, that allows showing with a practical example a situation where this idea works, i.e. a subsystem of an entangled state works as a "clock" of another subsystem.

  14. Synthetic chloroplasts

    SciTech Connect (OSTI)

    Calvin, M.

    1980-06-01T23:59:59.000Z

    The principal function of the chloroplast is to capture solar quanta and to store them in some stable form. We are in the process of trying to construct a totally synthetic system that would simulate some of the reactions of the two photosystems which occur in natural chloroplasts. Toward this end, we have demonstrated a number of the reactions required in separated systems. We have shown that it is possible to transfer electrons across an insulating membrane barrier with a surfactant photosensitizer. Others have shown, and we have confirmed, that it is possible to collect the two electrons necessary for the generation of molecular hydrogen on a heterogeneous catalyst suspended in water and similarly to collect the four holes on another heterogeneous catalyst suspended in water for the generation of molecular oxygen. A synthesis of some of these molecular catalysts for both these purposes is underway, with some partial success. When these partial reactions are assembled in a system, the resulting synthetic chloroplasts will not resemble the natural entity in detailed construction as they will contain no protein.

  15. Winter 2011 Dear Friends,

    E-Print Network [OSTI]

    Snider, Barry B.

    on renewable energy in Dhaka, Bangladesh in July; Michael Doonan, Ph.D. '02, whose Massachusetts Health PolicyWinter 2011 Dear Friends, As 2011 begins I want to share my warmest wishes to you and your families to move from Brandeis' International Center for Ethics, Justice and Public Life to its new permanent home

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

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

    Environmentally Friendly Driving Feedback Systems Research and Development Next Generation Environmentally Friendly Driving Feedback Systems Research and Development 2012 DOE...

  17. ARM - Meet Our Friends

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadap Documentation TDMADAP : XDCnarrowbandheat flux ARMMeasurements Related Links TCAPMediaFriends

  18. Friends of Berkeley Lab

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC) Environmental Assessments (EA)Budget(DANCE)Frequently AskedofFriends of Berekeley Lab

  19. Pedestrian-Friendly Nighttime Lighting

    Broader source: Energy.gov [DOE]

    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...

  20. Reader-Friendly Environmental Documents

    E-Print Network [OSTI]

    Minnesota, University of

    the portions of the EIS that are useful to decision makers and the public 40 CFR 1502.8: Environmental impact and the public can readily understand them. 40 CFR 1502.2: Environmental impact statements shall be analyticReader-Friendly Environmental Documents Reader-Friendly Environmental Documents Improving the way

  1. Sandia National Laboratories: Radar Friendly Blades

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

    MitigationRadar Friendly Blades Radar Friendly Blades Some wind farms have the potential to cause interference with the normal operation of radar systems used for security, weather...

  2. Energy Efficient, Environmentally Friendly Refrigerants

    E-Print Network [OSTI]

    Nimitz, J.; Glass, S.; Dhooge, P. M.

    This paper describes a new family of safe, environmentally friendly, high performance substitute refrigerants for application in manufacturing and facilities operations. Due to the Montreal Protocol and subsequent environmental regulations, CFC...

  3. Donna Friend | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T,Office of Policy,Policy ActDetroit7471 FederalDonna Friend Donna Friend Phone

  4. Collaborative Editing with Contract over Friend-to-Friend Networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    are adjusted according to auditing results. We evaluate proposed model by using PeerSim simulator of security problems in peer-to-peer networks such as the issue that a user appears under many identities developers based on previous experience, trust is not explicitly evaluated. In a friend

  5. Cyber Friendly Fire: Research Challenges for Security Informatics

    SciTech Connect (OSTI)

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

    2013-06-06T23:59:59.000Z

    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.

  6. Saga of synthetic rubber

    SciTech Connect (OSTI)

    Solo, R.A.

    1980-04-01T23:59:59.000Z

    The proposal to establish an Energy Mobilization Board and a synthetic fuels industry is reminiscent of World War II efforts to produce synthetic rubber. To avoid the mistakes made in the earlier effort, Mr. Solo suggests that the synthetic-fuel program should (1) use a more-successful technological development project as a model; (2) commit public funding and not rely on profit-oriented private enterprise; and (3) avoid entrusting social planning to single-purpose entities that have not been sensitive to social values. (DCK)

  7. Pedestrian Friendly Outdoor Lighting

    SciTech Connect (OSTI)

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

    2013-12-31T23:59:59.000Z

    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.

  8. Friends of St Andrews University Library

    E-Print Network [OSTI]

    Brierley, Andrew

    Friends of St Andrews University Library www.st-andrews.ac.uk/library/friends Designed and printed Andrews Library Special Collections Department. The University of St Andrews is a charity registered in Scotland : No SC013532 #12;The Friends of St Andrews University Library was founded in 2007 with the aim of

  9. DISTRIBUTED AND COLLABORATIVE SYNTHETIC ENVIRONMENTS

    E-Print Network [OSTI]

    Texas at Austin, University of

    1 DISTRIBUTED AND COLLABORATIVE SYNTHETIC ENVIRONMENTS Chandrajit L. Bajaj and Fausto Bernardini with synthetic environments1,2,3,4,5,6 . A synthetic environment system is generally characterized and the synthetic environment generated by the computer. Several degrees of immersion are possible, ranging from

  10. Intelligibility enhancement of synthetic speech in noise

    E-Print Network [OSTI]

    Edinburgh, University of

    Intelligibility enhancement of synthetic speech in noise C´assia Valentini Botinh~ao TH E U N I V E of a hidden Markov model (HMM-) based speech synthesis system that allows for flexible enhancement strategies with noise-independent enhancement approaches based on the acoustics of highly intelligible speech

  11. Synthetic guide star generation

    DOE Patents [OSTI]

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

    2004-03-09T23:59:59.000Z

    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.

  12. 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

    2008-06-10T23:59:59.000Z

    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.

  13. Biodegradable synthetic bone composites

    DOE Patents [OSTI]

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

    2013-01-01T23:59:59.000Z

    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.

  14. Synthetic aircraft turbine oil

    SciTech Connect (OSTI)

    Yaffe, R.

    1982-03-16T23:59:59.000Z

    Synthetic lubricating oil composition having improved oxidation stability comprising a major portion of an aliphatic ester base oil having lubricating properties, formed by the reaction of pentaerythritol and an organic monocarboxylic acid and containing a phenylnaphthylamine, a dialkyldiphenylamine, a polyhydroxy anthraquinone, a hydrocarbyl phosphate ester and a dialkyldisulfide.

  15. Synthetic Running Coupling of QCD

    E-Print Network [OSTI]

    Aleksey I. Alekseev

    2006-02-19T23:59:59.000Z

    Based on a study of the analytic running coupling obtained from the standard perturbation theory results up to four-loop order, the QCD ``synthetic'' running coupling \\alpha_{syn} is built. In so doing the perturbative time-like discontinuity is preserved and nonperturbative contributions not only remove the nonphysical singularities of the perturbation theory in the infrared region but also decrease rapidly in the ultraviolet region. In the framework of the approach, on the one hand, the running coupling is enhanced at zero and, on the other hand, the dynamical gluon mass m_g arises. Fixing the parameter which characterize the infrared enhancement corresponding to the string tension \\sigma and normalization, say, at M_\\tau completely define the synthetic running coupling. In this case the dynamical gluon mass appears to be fixed and the higher loop stabilization property of m_g is observed. For \\sigma = (0.42 GeV)^2 and \\alpha_{syn}(M^2_\\tau) = 0.33 \\pm 0.01 it is obtained that m_g = 530 \\pm 80 MeV.

  16. Friends Solar | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489InformationFrenchtown, New Jersey: Energy ResourcesFreyFriends

  17. Pavement-Friendly Buses and Trucks

    E-Print Network [OSTI]

    Hedrick, J. Karl; Yi, Kyongsu; Wargelin, Margaret

    1992-01-01T23:59:59.000Z

    Pavement-Friendly Buses and Trucks BY J. KARL AND HEDRLCK,researchers attributed the pavement "static" factor — thedouble, even quadruple, pavement damage. But by equipping

  18. Guest Editors' Introduction: Synthetic Biology

    E-Print Network [OSTI]

    Densmore, Douglas

    + undergraduate participants from around the world. Synthetic Biology had a global market which gene- rated $233 Tufts University h SYNTHETIC BIOLOGY IS trending, as evidenced by the recent achievements in biofuels

  19. High temperature synthetic cement retarder

    SciTech Connect (OSTI)

    Eoff, L.S.; Buster, D.

    1995-11-01T23:59:59.000Z

    A synthetic cement retarder which provides excellent retardation and compressive strength development has been synthesized. The response properties and temperature ranges of the synthetic retarder far exceed those of commonly used retarders such as lignosulfonates. The chemical nature of the new retarder is discussed and compared to another synthetic retarder.

  20. An Anti_Turing Test: Reduced Variables for Social Network Friends' Recommendations

    E-Print Network [OSTI]

    Exman, Iaakov

    2014-01-01T23:59:59.000Z

    A routine activity of social networks servers is to recommend candidate friends that one may know and stimulate addition of these people to one's contacts. An intriguing issue is how these recommendation lists are composed. This work investigates the main variables involved in the recommendation activity, in order to reproduce these lists including its time dependent characteristics. We propose relevant algorithms. Besides conventional approaches, such as friend_of_a_friend, two techniques of importance have not been emphasized in previous works: randomization and direct use of interestingness criteria. An automatic software tool to implement these techniques is proposed. Its architecture and implementation are discussed. After a preliminary analysis of actual data collected from social networks, the tool is used to simulate social network friends' recommendations.

  1. AN INTEGRATIVE APPROACH TO SYNTHETIC BIOLOGY AND

    E-Print Network [OSTI]

    Nguyen, Danh

    /18/2011UCDavis 18 #12;PLASMID CONSTRUCTION FROM STANDARD PARTS 4/18/2011UCDavis 19 #12;SCREENING FOR MUTANTS 4

  2. Synthetic biology approach to cellulose degradation 

    E-Print Network [OSTI]

    Lakhundi, Sahreena Saleem

    2012-06-22T23:59:59.000Z

    Cellulose, the most abundant biopolymer on earth, is composed of ? – 1,4 – linked glucose units, which in turn form a highly ordered crystalline structure that is insoluble and recalcitrant to degradation. It is the ...

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

    Office of Environmental Management (EM)

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

  4. Synthetic and Mechanistic Chemistry

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengthening a solid ...SuccessSurprisingSynchrotrons ExplorephenoxylSynthetic

  5. Security Informatics Research Challenges for Mitigating Cyber Friendly Fire

    SciTech Connect (OSTI)

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

    2014-09-30T23:59:59.000Z

    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.

  6. Physiologist's Friend Chip User and Demonstration Guide The Physiologist's Friend Chip (http://www.ini.unizh.ch/~tobi/friend/chip) is a neuromorphic analog

    E-Print Network [OSTI]

    Delbruck, Tobi

    Physiologist's Friend Chip User and Demonstration Guide The Physiologist's Friend Chip (http://www.ini materials and antistatic bag for traveling. Last modified 5/14/2009 See http://www.ini

  7. Latent Friend Mining from Blog Data , Jian-Tao Sun2

    E-Print Network [OSTI]

    Yang, Qiang

    , it is not easy to obtain and maintain the profiles manually. Therefore, the automatic approaches in mining usersLatent Friend Mining from Blog Data Dou Shen1 , Jian-Tao Sun2 , Qiang Yang1 , Zheng Chen2 1 in recent years with benefits for different types of users. For individuals, the Web community helps

  8. Synthetic biology and crop engineering

    Broader source: Energy.gov [DOE]

    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

  9. DTU Synthetic Promoter Library Standard

    E-Print Network [OSTI]

    Fortuna, Patrick

    2010-12-04T23:59:59.000Z

    The purpose of this RFC is to outline a method for generating a BioBrick compatible Synthetic Promoter Library (SPL) within bacteria in order to fine-tune the expression of BioBrick parts and devices.

  10. SYNTHETIC SLING FAILURE - EVALUATIONS & RECOMMENDATIONS

    SciTech Connect (OSTI)

    MACKEY TC; HENDERSON CS

    2009-10-26T23:59:59.000Z

    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.

  11. Simplified Approach for Estimating Impacts of Electricity Generation...

    Open Energy Info (EERE)

    Integrated Model to Access the Global Environment Simple Interactive Models for better air quality (SIM-air) ... further results SIMPACTS is a user-friendly, simplified approach...

  12. activated environmentally friendly: Topics by E-print Network

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

    Library T he FriendsFriendsSpringSummer 2004 Duncan Rice announced the University Courts agreement that Chris Gane, currently Convenor of the Library Levi, Ran 58 CommonA...

  13. accurate user friendly: Topics by E-print Network

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

    systems made over the past forty years. Linda C. Smith 2 Writing User-Friendly Energy Audit Reports Texas A&M University - TxSpace Summary: WRITING USER-FRIENDLY ENERGY AUDIT...

  14. Green Technology Foresight about environmentally friendly products

    E-Print Network [OSTI]

    Green Technology Foresight about environmentally friendly products and materials - The challenges of Product Development 4 Center for Information and Communication Technologies, Technical University OF THE PROJECT 23 1.2 THE THREE GENERIC TECHNOLOGIES 23 1.3 THE OBJECTIVES OF THE PROJECT 24 1.4 INITIATION

  15. How to win friends and influence people

    E-Print Network [OSTI]

    Wheelock, Jess (Jessica Therese)

    2010-01-01T23:59:59.000Z

    My thesis work developed out of a specific book: How to Win Friends and Influence People by Dale Carnegie. The book is one of the best-selling self-help books of all time. Every part of the book was material for my project: ...

  16. Email To Friend Steam Electricity Generator

    E-Print Network [OSTI]

    . keymanengravables.com Steam Turbine Generator Info, Pictures And Deals For Steam turbine generator ediscountshoppingBack One Email To Friend Steam Electricity Generator Need Steam Electricity Generator? See Steam Electricity Generator. greenshieldsindustrial.com Steam Generators Deals on Steam Generators Find what you

  17. Friendly LandscapingTM Community Associations

    E-Print Network [OSTI]

    Jawitz, James W.

    and Property Managers. Then schedule a free FYN Neighborhood Recognition visit with a Master Gardener FYN programs are open to all persons without regard to race, color, creed, sex, age, handicap or nationalFlorida Friendly LandscapingTM for Community Associations Workshop Landscape Best Management

  18. Friendly LandscapingTM Community Associations

    E-Print Network [OSTI]

    Jawitz, James W.

    and Property Managers. Then schedule a free FYN Neighborhood Recognition visit with a Master Gardener FYN. Extension programs are open to all persons without regard to race, color, creed, sex, age, handicapFlorida Friendly LandscapingTM for Community Associations Workshop Landscape Best Management

  19. Friendly LandscapingTM Community Associations

    E-Print Network [OSTI]

    Watson, Craig A.

    members, Lakes and Landscape Committees and Property Managers. Then schedule a free FYN Neighborhood. Extension programs are open to all persons without regard to race, color, creed, sex, age, handicapFlorida Friendly LandscapingTM for Community Associations Workshop Landscape Best Management

  20. WOBBLED SYNTHETIC DISCRIMINANT FUNCTION CLASSIFICATION Chye-Hwa Loo and Atef Elsherbeni

    E-Print Network [OSTI]

    Elsherbeni, Atef Z.

    fragment-based recognition approach and a new type of synthetic discriminant function (SDF) filter in this paper is to use a new type of Synthetic Discriminant Function (SDF) to reduce the number of reference the principal of SDF while introducing a new type of SDF code named Wobbled SDF. In Section 2, the Analysis

  1. The Evolutionary Systems Biology Team Synthetic Biology/Citizen Science Post-doctoral position

    E-Print Network [OSTI]

    The Evolutionary Systems Biology Team Synthetic Biology/Citizen Science Post-doctoral position We in citizen science projects.The post-doc will join the extended CRI lab that includes synthetic and systems-sourcing, DIY approaches and gamification as part of a new European- funded project, Citizen CyberLab - a three

  2. 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.

  3. FRIEND US ON FACEBOOK AT UH Homecoming 1 Page Document

    E-Print Network [OSTI]

    Bittner, Eric R.

    FRIEND US ON FACEBOOK AT UH Homecoming 1 Index Page Document 1....................... Index 2 Parade #12;FRIEND US ON FACEBOOK AT UH Homecoming 2 2012 Homecoming Spirit Cup Competition ­ Calendar Cougars v. Tulsa Hurricanes o Time: 4:00PM o Location: Robertson Stadium #12;FRIEND US ON FACEBOOK AT UH

  4. Structural Analysis of Human and Bovine Bone for Development of Synthetic Materials 

    E-Print Network [OSTI]

    Jang, Eunhwa

    2012-10-19T23:59:59.000Z

    With increasing demands in bone repair and replacement, this research investigates the microstructure, properties and performance of bovine bone, human bone, and synthetic materials. Doing so, experimental approaches were used to exam and compare...

  5. DEMONSTRATION OF NOVEL, COST-EFFECTIVE, AND ENVIRONMENTALLY FRIENDLY APPROACHES

    E-Print Network [OSTI]

    of Manure 3.1 Methods 9 3.1.1 Advent of Hauling Poultry Manure in Large Trucks 11 3.1.2 Conveyor-Cost Manure Storage Facility Option 8 2.42 Manure Storage Agreement and Network 9 3.0 Loading and Hauling 4.0 Manure Transport to Distant Markets 4.1 Manure 16 4.2 Manure Hauling Cost 16 4.3 4.4 Amounts

  6. Kazakhstan-Integrated Approaches to the Development of Climate Friendly

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOf Kilauea Volcano, Hawaii |Island,Kas Farms Wind FarmEconomies in Central

  7. Kyrgyzstan-Integrated Approaches to the Development of Climate Friendly

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOf Kilauea Volcano, Hawaii9969995°,I Jump to:Kumagai GumiKyleEconomies in

  8. Turkmenistan-Integrated Approaches to the Development of Climate Friendly

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTri Global Energy LLC Place: Dallas, Texas2022 |Turkmenistan-GEF

  9. Tajikistan-Integrated Approaches to the Development of Climate Friendly

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries PvtStratosolar Jump to:Holdings Co08.0 -TEEMP Jump to:TIAXFlorida:Taiwah,Economies

  10. Uzbekistan-Integrated Approaches to the Development of Climate Friendly

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown of Ladoga,planning methodologies and toolsoperationWind InterestEconomies in

  11. Future Prospects of Synthetic Fuels 

    E-Print Network [OSTI]

    Fryback, M. G.

    1982-01-01T23:59:59.000Z

    It is important for the future of this nation to reach the goal of demonstrated definition and quantification of the parameters which influence the ability to use this country's vast resources of coal and oil shale for production of synthetic fuels...

  12. Future Prospects of Synthetic Fuels

    E-Print Network [OSTI]

    Fryback, M. G.

    1982-01-01T23:59:59.000Z

    It is important for the future of this nation to reach the goal of demonstrated definition and quantification of the parameters which influence the ability to use this country's vast resources of coal and oil shale for production of synthetic fuels...

  13. Flow control via synthetic jet actuation 

    E-Print Network [OSTI]

    Miller, Adam Cole

    2005-02-17T23:59:59.000Z

    An experimental investigation was undertaken to determine the ability of Synthetic Jet Actuators to control the aerodynamic properties of a wing. The Synthetic Jet Actuator (SJA) was placed at two separate positions on ...

  14. Synthetic LDL as targeted drug delivery vehicle

    DOE Patents [OSTI]

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

    2012-08-28T23:59:59.000Z

    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.

  15. Synthetic thermoelectric materials comprising phononic crystals

    DOE Patents [OSTI]

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

    2013-08-13T23:59:59.000Z

    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.

  16. acute friend virus: Topics by E-print Network

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

    the great majority the feasibility of our attack. The friend injection attack enables a stealth infiltra- tion of social networks Boyer, Edmond 209 Immunofluorescent studies of...

  17. Synthetic carbonaceous fuels and feedstocks

    DOE Patents [OSTI]

    Steinberg, Meyer (Huntington Station, NY)

    1980-01-01T23:59:59.000Z

    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.

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

    ScienceCinema (OSTI)

    Keasling, Jay

    2011-04-28T23:59:59.000Z

    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.

  19. Fracture of synthetic diamond M. D. Droty

    E-Print Network [OSTI]

    Ritchie, Robert

    of synthetic polycrystalline diamond make it a promising material for many structural applications studies on the fracture toughness of polycrystalline diamond,29 primarily due to the difficultiesFracture of synthetic diamond M. D. Droty Ctystallume, 3506 Bassett Street, Santa Clara, California

  20. World synthetic rubber consumption is growing

    SciTech Connect (OSTI)

    Not Available

    1987-03-04T23:59:59.000Z

    Worldwide consumption of new rubber, both synthetic and natural, has increased. This report includes a prediction of even more growth in the rubber market which was made by the International Institute of Synthetic Rubber Producers (IISRP), based in Houston. Figures are given for worldwide consumption.

  1. Introduction to Bioinformatics A Systems Biology Approach

    E-Print Network [OSTI]

    Rocha, Luis

    Introduction to Bioinformatics A Systems Biology Approach Luis M. Rocha Complex Systems Modeling Computational Biology to Bioinformatics Course Layout: March 11-15, 2002 #12;P Systems Biology P Synthetic, Multi- Disciplinary Approach

  2. Field Testing of Environmentally Friendly Drilling System

    SciTech Connect (OSTI)

    David Burnett

    2009-05-31T23:59:59.000Z

    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.

  3. Results of the Grid Friendly Appliance Project

    SciTech Connect (OSTI)

    Hammerstrom, Donald J.

    2010-04-14T23:59:59.000Z

    As part of the Pacific Northwest GridWise™ Testbed Demonstration funded by the U.S. Department of Energy and others, Pacific Northwest National Laboratory (PNNL) collaborated with Whirlpool Corporation, Invensys Controls, the Bonneville Power Administration, PacifiCorp, Portland General Electric and several smaller utilities to install 150 new Sears Kenmore clothes dryers and to retrofit 50 existing electric water heaters in homes in Washington and Oregon. Each dryer and water heater was configured to respond to the Grid Friendly™ appliance controller, a small electronic circuit that sensed underfrequency grid conditions and requested that electric load be shed by the appliances. These controllers and appliances were observed for over a year in residences spread over a wide geographic area. The controllers were found to respond predictably and reliably despite their geographic separation. Over 350 minor underfrequency events were observed during the experiment. This paper presents the distributions of these events by season and by time of day. Based on measured load profiles for the dryers and water heaters, the average electrical load that can be shed by each of the two appliance types was estimated by time of day and by season. Battelle Memorial Institute and PNNL have been assembling a suite of grid-responsive functions and benefits that can be achieved through the control of relatively small, distributed loads and resources on a power grid. These controllers should eventually receive acceptance for the opportunities they offer for circuit protection, regulation services, facilitation of demand responsiveness, and even power quality.

  4. 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).

  5. Civil and Environmental Engineering Print-Friendly Page

    E-Print Network [OSTI]

    Alabama in Huntsville, University of

    Civil and Environmental Engineering Print-Friendly Page Return to: Schools/ Colleges/ Departments S engineering, transportation planning, environmental systems, and geotechnical analysis. The modern civil. The Bachelor of Science in Engineering degree from the Civil and Environmental Engineering Department

  6. Moab Project Receives Award for Purchasing Environmentally Friendly...

    Energy Savers [EERE]

    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...

  7. Happy Holidays from Clemson December 2006 Dear Friends and Family,

    E-Print Network [OSTI]

    Childress, Michael J.

    Happy Holidays from Clemson December 2006 Dear Friends and Family, Can it be that another year has a wonderful time enjoying the beautiful Lamar Valley. Mom, Dad and Shala also made a trip to Snowbird, UT

  8. Development and Evaluation of a Novel Traffic Friendly Commuter Vehicle

    E-Print Network [OSTI]

    Minnesota, University of

    Development and Evaluation of a Novel Traffic Friendly Commuter Vehicle Rajesh Rajamani Department What solutions do researchers in the automotive industry and researchers in the vehicle dynamics lanes - Vehicles will travel together in closely- packed "platoons". Dedicated to automated vehicles

  9. Sorption-Enhanced Synthetic Natural Gas (SNG) Production from...

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

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

  10. Synthetic morphogenesis : space, time, and deformation

    E-Print Network [OSTI]

    Brodsky, Micah Z. (Micah Zev)

    2014-01-01T23:59:59.000Z

    Synthetic biology has presented engineers with a fascinating opportunity: can we understand the principles of our origins { animal embryonic development - by re-engineering it in the laboratory? I investigate, from an ...

  11. Foundational platform for mammalian synthetic biology

    E-Print Network [OSTI]

    Davidsohn, Noah (Noah Justin)

    2013-01-01T23:59:59.000Z

    The emergent field of synthetic biology is different from many other biological engineering efforts, in that its roots, design principles, and forward engineering perspective have been adopted from electrical engineering ...

  12. Synthetic heparin-binding growth factor analogs

    DOE Patents [OSTI]

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

    2007-01-23T23:59:59.000Z

    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.

  13. Synthetic CO.sub.2 acceptor

    DOE Patents [OSTI]

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

    1981-08-18T23:59:59.000Z

    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.

  14. Biogeography and Evolution of the Araneae: A Synthetic Approach

    E-Print Network [OSTI]

    Saupe, Erin E.

    2010-04-18T23:59:59.000Z

    , respectively), Baltic amber (mid-Eocene to early Oligocene) (e.g. Petrunkevitch, 1942), the Messel Oil Shales of Germany (lower Eocene) (Wunderlich, 1986), Florissant Insect Beds (Tertiary) (e.g. Scudder, 1890), Quesnel Tertiary Beds in Canada (Scudder 1878...

  15. Synthetic approaches to the activation of substituted 2-methyl pyridines

    E-Print Network [OSTI]

    Cancanon, Fernadina de la Caridad

    1993-01-01T23:59:59.000Z

    (21%), 148 (42%), 135 (100%), 1 08 (35%), 93 ( 43%), 83 (38%), 55 (49%), 41 (48%), 29 (27 la) 2-[N(4, 4-Dimethyl-2, 6-dioxopiperidinyl))-6-pycolyl-tert-butytdi phenylsilyl ether (26) O Bu'Ph zSi0 N N The same procedure for the preparation.... 14%, ' N, 16. 52%. Attempted ring opening of 2-[N-(4, 4-dimethyl-2, 6-dioxo piperidinyl)]-6- picolyl-tert-butyl diphenylsilyl ether (26) with 6-amino-2-pyridine methanol-fert-butyldiphenylsilyl ether (22) The cyclic imide 26 (0. 487g, 0. 001 mole...

  16. Meta-DNA: Synthetic Biology via DNA Nanostructures and Hybridization Reactions

    E-Print Network [OSTI]

    Reif, John H.

    Meta-DNA: Synthetic Biology via DNA Nanostructures and Hybridization Reactions Harish Chandran for desired functionality. The approach of this paper is to develop a biochemical system which we call meta-DNA (abbreviated as mDNA), based entirely on strands of DNA as the only component molecule. Our work leverages

  17. A newsletter for alumni and friends of

    E-Print Network [OSTI]

    Li, Teng

    reliability by removing failure causes; and to provide input to decision makers. The focus of risk analysis of consequences; and to provide input to decision makers on optimal strategies to reduce risk. In integrating of a system's approach methods and tools to understand why and how components, systems, and processes fail

  18. Albert Einstein's close friends and colleagues from the Patent Office

    E-Print Network [OSTI]

    Weinstein, Galina

    2012-01-01T23:59:59.000Z

    In the Patent Office Einstein hatched his most beautiful ideas, and there he spent his "Happy Bern Years". These wonderful ideas led to his miraculous year works of 1905. Einstein was not an expert in academic matters, and he was out of academic world. Neither did he meet influential professors, or attend academic meetings. He discussed his ideas with his close friends and colleagues from the Patent Office. In 1907 he finally got his foot into the academic doorway; Einstein became a privatdozent and gave lectures at the University of Bern. However, his first students consisted again of his two close friends and another colleague from the Patent Office.

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

    SciTech Connect (OSTI)

    Mok, Chin Man [GSI Environmental] [GSI Environmental; Hubbard, Susan [Lawrence Berkeley National Laboratory] [Lawrence Berkeley National Laboratory; Chen, Jinsong [Lawrence Berkeley National Laboratory] [Lawrence Berkeley National Laboratory; Suribhatla, Raghu [AMEC E& I] [AMEC E& I; Kaback, Dawn Samara [AMEC E& I] [AMEC E& I

    2014-01-29T23:59:59.000Z

    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.

  20. New Synthetic Methods for Hypericum Natural Products

    SciTech Connect (OSTI)

    Insik Jeon

    2006-12-12T23:59:59.000Z

    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.

  1. Synthetic heparin-binding factor analogs

    DOE Patents [OSTI]

    Pena, Louis A. (Poquott, NY); Zamora, Paul O. (Gaithersburg, MD); Lin, Xinhua (Plainview, NY); Glass, John D. (Shoreham, NY)

    2010-04-20T23:59:59.000Z

    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.

  2. Synthetic and Biosynthetic Studies of Natural Products

    E-Print Network [OSTI]

    Ve?liz Chanis, Eduardo Alberto

    1992-05-01T23:59:59.000Z

    , this derivative seems to be a better tolerated and less toxic drug. 1 1 0 Little or no antitumor activity was displayed by anthracycline analogs with the unnatural p-glycosidic bond (C-V epimer). 1 1 6 However, the p-anomer of 4-DMDA showed antitumor activity... with the surface of cell membranes. C. Synthetic Analysis Scheme 2 shows the basic synthetic strategies employed in the preparation of racemic and optically active 4-demethoxy anthracyclines. The strategies employed can be classified in three basic groups: 1...

  3. 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...

  4. Developments | i FOR DONORS AND FRIENDS OF MICHIGAN STATE UNIVERSITY SUMMER 2012

    E-Print Network [OSTI]

    Liu, Taosheng

    Developments | i FOR DONORS AND FRIENDS OF MICHIGAN STATE UNIVERSITY SUMMER 2012 Scholarship 2012 | givingto.msu.edu DEVELOPMENTS For Donors and Friends of Michigan State University MSUDevelopments,publishedthreetimeseachyear,isdevotedtotheinspirationand impact ofprivatephilanthropyatMichiganStateUniversity

  5. Privacy-friendly Energy-metering via Homomorphic Encryption

    E-Print Network [OSTI]

    Jacobs, Bart

    Privacy-friendly Energy-metering via Homomorphic Encryption Flavio D. Garcia and Bart Jacobs and consumption is one of the goals. Accurate usage data is important for such a better match. So-called smart by the utility sector. For instance, in April 2009 the Senate in the Netherlands has refused to pass a bill

  6. Creating Youth Friendly Health Services in Serbia and Bosnia

    E-Print Network [OSTI]

    Sun, Yu

    Creating Youth Friendly Health Services in Serbia and Bosnia Fran Perkins, Charlotte Lombardo & Bosnia in May 08 Finding system to provide ongoing training Jazas in Serbia Government in Bosnia #12 of Belgrade New 5th year course in Adolescent Medicine at University of Novi Sad with textbook Bosnia Review

  7. Favors from Facebook Friends: Unpacking Dimensions of Social Capital

    E-Print Network [OSTI]

    Michigan, University of

    capital [5, 14, 19]. Social capital is a conceptual framework that considers the resources held by thoseFavors from Facebook Friends: Unpacking Dimensions of Social Capital Yumi Jung, Rebecca Gray]@umich.edu ABSTRACT Past research has demonstrated a link between perceptions of social capital and use of the popular

  8. Albin O. Kuhn Library & Gallery Friends of the Library & Gallery

    E-Print Network [OSTI]

    Maryland, Baltimore County, University of

    Albin O. Kuhn Library & Gallery Friends of the Library & Gallery UMBC 1000 Hilltop Circle Baltimore, MD 21250 PHONE: 410-455-2356 FAX: 410-455-1078 VOICE/TTY: 410-455-32 WEB: www.umbc.edu/library October 25, 2012 Dear UMBC Community Member: Everyone at UMBC benefits from the Albin O. Kuhn Library

  9. Zipcar at Cal Poly Fast, Convenient, Affordable and environmentally friendly.

    E-Print Network [OSTI]

    Sze, Lawrence

    just got easier! Zipcar provides a self-service, on-demand car sharing program at Cal Poly. To use itZipcar at Cal Poly Fast, Convenient, Affordable and environmentally friendly. Life without a car, simply register as a member, reserve a car online or by phone, use your Zipcard to unlock the vehicle

  10. 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

    2010-09-01T23:59:59.000Z

    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.

  11. SYNTHETIC LUBRICANTS, INC 1411 Callaghan Drive

    E-Print Network [OSTI]

    Rollins, Andrew M.

    1 SYNTHETIC LUBRICANTS, INC 1411 Callaghan Drive Greenville, MI 48838 MATERIAL SAFETY DATA SHEET irritating and potentially toxic fumes containing oxides of nitrogen if exposed to extreme heat in air: (Conditions to Avoid) Stable under normal use conditions and in final use concentration. Incompatibility

  12. SYNTHETIC LUBRICANTS, INC 1411 Callaghan Drive

    E-Print Network [OSTI]

    Rollins, Andrew M.

    1 SYNTHETIC LUBRICANTS, INC 1411 Callaghan Drive Greenville, MI 48838 MATERIAL SAFETY DATA SHEET. It will produce irritating and potentially toxic fumes containing oxides of nitrogen if exposed to extreme heat: (Conditions to Avoid) Stable under normal use conditions and in final use concentration. Incompatibility

  13. Immobilization of radioiodine in synthetic boracite

    DOE Patents [OSTI]

    Babad, H.; Strachan, D.M.

    1982-09-23T23:59:59.000Z

    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.

  14. 1 Synthetic Texturing 1.1 Introduction

    E-Print Network [OSTI]

    Turk, Greg

    1 Synthetic Texturing 1.1 Introduction This dissertation describes improved methods for computer of this, the top of Figure 1.1 shows a horse model with a white surface and the bottom shows this same-hocformulasforlightreflection Figure 1.1: Stripe texture created using reaction-diffusion. Top is an untextured horse and the bottom

  15. CO2 Capture with Enzyme Synthetic Analogue

    SciTech Connect (OSTI)

    Harry Cordatos

    2010-11-08T23:59:59.000Z

    Overview of an ongoing, 2 year research project partially funded by APRA-E to create a novel, synthetic analogue of carbonic anhydrase and incorporate it into a membrane for removal of CO2 from flue gas in coal power plants. Mechanism background, preliminary feasibility study results, molecular modeling of analogue-CO2 interaction, and program timeline are provided.

  16. Aspects of the political economy of development and synthetic biology

    E-Print Network [OSTI]

    Wellhausen, Rachel

    What implications might synthetic biology’s potential as a wholly new method of production have for the world economy, particularly developing countries? Theories of political economy predict that synthetic biology can ...

  17. Feedback control of flow separation using synthetic jets

    E-Print Network [OSTI]

    Kim, Kihwan

    2006-04-12T23:59:59.000Z

    The primary goal of this research is to assess the effect of synthetic jets on flow separation and provide a feedback control strategy for flow separation using synthetic jets. The feedback control synthesis is conducted based upon CFD simulation...

  18. Active flow separation control using synthetic jet actuators 

    E-Print Network [OSTI]

    Rao, Preetham P

    2000-01-01T23:59:59.000Z

    The use of synthetic jet actuators for controlling the boundary layer flow and flow separation over a wing is investigated. A theory for the optimum design of actuators using motors is developed. A motor driven synthetic ...

  19. Imperial College Institute of Systems and Synthetic Biology

    E-Print Network [OSTI]

    Synthetic genomics: progress on construction of a synthetic bacterial cell 12.35 Discussion 12.55 Lunch Designing and Mining (Pathogen) Genome Databases 14.30 Plenary 3 Dr George Christophides, Imperial College

  20. Expansion of Automotive Industries to Boost the Global Synthetic...

    Open Energy Info (EERE)

    to the increase in the usage of synthetic and bio-based lubricants in the rampant global automotive industry, is expected to drive the global synthetic and bio-based lubricants...

  1. 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

    2010-06-01T23:59:59.000Z

    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.

  2. Csaba Horvath - Scholar, Scientist, Mentor, Friend

    SciTech Connect (OSTI)

    Beaver, Lois [University of Tennessee, Knoxville (UTK); Guiochon, Georges A [ORNL

    2005-09-01T23:59:59.000Z

    At Farbwerke Hoechst, Csaba did research and development work on the surface chemistry of organic pigment dyes and learned about the practical aspects of surface chemistry. During his doctoral research, Csaba invented and developed porous-layer open tubular columns which offers remarkable advantages over wall-coated OTC, e.g., a higher loadability and the ability to use all retention mechanisms afforded by adsorption. He also prepared surface-treated beads, an approach that he used later in the context of HPLC. Working with S.R. Lipsky on the development of analytical methodologies for lunar samples, searching for trace compounds which could show the presence of life on the moon in a distant past, he imagined applying to LC the same principles that he had used earlier in GC, and built the first instrument for high pressure liquid chromatography. Very early, he understood the potential of this new separation method to revolutionize biochemistry and molecular biology. Working for Picker-Nuclear, Csaba developed the first commercial instrument for HPLC, which was also the first instrument to use microbore HPLC columns (for ion-exchange separations of biological compounds). From the beginning, Csaba focused his interests on the separation of samples of biological origin, becoming the pioneer of modern bioanalytical chemistry. He devoted considerable attention to the development of the theory and applications of reversed-phase liquid chromatography, the most widely applied chromatographic method of analysis, pioneered the use of displacement chromatography for preparative HPLC, and innumerable applications of HPLC to the separation of samples of biological origin. He developed the solvophobic theory of retention in RPLC, the use of entropy-enthalpy compensation in the study of retention mechanisms, and the fundamentals of electrochromatography. The importance of his spearheading HPLC, RPLC, and their applications in the life sciences, fields in which these new methods are leading to countless breakthroughs, is such that his contributions will remain among the major scientific achievemetns of the 20th century.

  3. SPE-163690-MS Synthetic, Geomechanical Logs for Marcellus Shale

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    SPE-163690-MS Synthetic, Geomechanical Logs for Marcellus Shale M. O. Eshkalak, SPE, S. D of production from shale gas reservoirs. In this study, synthetic geomechanical logs (Including following-driven models are developed that are capable of generating synthetic geomechanical logs from conventional logs

  4. Composition and Biodegradation of a Synthetic Oil Spilled on the

    E-Print Network [OSTI]

    Priscu, John C.

    -AN8) as well as a total of 27 L of hydraulic fluid MIL-5605 and synthetic turbine oil Aeroshell 500 in January 2003 on the 5 m-thick perennial ice cover of Lake Fryxell, spilling synthetic turbine oil et al. (9). Here, we compare the initial chemical composition of the synthetic turbine lubricant

  5. Numerical Methods for the Valuation of Synthetic Collateralized Debt Obligations

    E-Print Network [OSTI]

    Toronto, University of

    Numerical Methods for the Valuation of Synthetic Collateralized Debt Obligations by Xiaofang Ma Methods for the Valuation of Synthetic Collateralized Debt Obligations Xiaofang Ma Doctor of Philosophy methods for synthetic CDO valuation are presented. iii #12;Acknowledgements Although many people have

  6. Department of Mechanical Engineering Spring 2012 Synthetic Cable Termination

    E-Print Network [OSTI]

    Demirel, Melik C.

    PENNSTATE Department of Mechanical Engineering Spring 2012 Synthetic Cable Termination Overview to be grasped. The methods for terminating the metallic cable will not work with the synthetic cable, so a new termination method is needed. The synthetic cable is a new design that has yet to be successfully terminated

  7. Friend or Foe? Fake Profile Identification in Online Social Networks

    E-Print Network [OSTI]

    Fire, Michael; Elyashar, Aviad; Elovici, Yuval

    2013-01-01T23:59:59.000Z

    The amount of personal information unwillingly exposed by users on online social networks is staggering, as shown in recent research. Moreover, recent reports indicate that these networks are infested with tens of millions of fake users profiles, which may jeopardize the users' security and privacy. To identify fake users in such networks and to improve users' security and privacy, we developed the Social Privacy Protector software for Facebook. This software contains three protection layers, which improve user privacy by implementing different methods. The software first identifies a user's friends who might pose a threat and then restricts this "friend's" exposure to the user's personal information. The second layer is an expansion of Facebook's basic privacy settings based on different types of social network usage profiles. The third layer alerts users about the number of installed applications on their Facebook profile, which have access to their private information. An initial version of the Social Priv...

  8. ENERGY EFFICIENCY AND ENVIRONMENTALLY FRIENDLY DISTRIBUTED ENERGY STORAGE BATTERY

    SciTech Connect (OSTI)

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

    2006-04-30T23:59:59.000Z

    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.

  9. Applications Tests of Energy Efficient, Environmentally Friendly Refrigerants

    E-Print Network [OSTI]

    Nimitz, J.; Glass, S.; McCullough, E.; Dhooge, P.

    APPLICATIONS TESTS OF ENERGY EFFICIENT, ENVIRONMENTALLY FRIENDLY REFRIGERANTS JONATHAN NIMITZ SUZANNE GLASS EDWARD McCULLOUGH PATRICK DHOOGE PRESIDENT/CEO RESEARCH ASSOCIATE ENGINEER DIR.OF BUSINESS DEV. ENVIRON?v1ENTAL TECHNOLOGY AND EDUCAn.... This goal has been achieved. Additionally, the Ikon? refrigerants were designed to take advantage of the exceptional combustion suppression characteristics of trifluoroiodomethane (CF 3 I), a member of the chemical family known as fluoroiodocarbons...

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

    SciTech Connect (OSTI)

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

    2012-12-01T23:59:59.000Z

    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.

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

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels DataEnergyDepartment ofATVMAgriculturalAn Earth-Friendly Wind Vision An

  12. Production of synthetic hydrocarbon fuels from peat

    SciTech Connect (OSTI)

    Bodle, W.W.; Punwani, D.; Weil, S.A.

    1982-06-22T23:59:59.000Z

    A process and apparatus for production of synthetic hydrocarbon fuels from peat providing wide variation of the composite proportion of liquid-gas output while maintaining high overall carbon conversion to useful fuel. The process and apparatus utilizes three process stages in a single vessel providing functions of drying wet peat, provisions for addition of both wet and dry peat to a hydropyrolysis zone and gasification of the peat char.

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

    SciTech Connect (OSTI)

    NONE

    2006-11-15T23:59:59.000Z

    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.

  14. Effects of potential additives to promote seal swelling on the thermal stability of synthetic jet fuels

    SciTech Connect (OSTI)

    Lind, D.D.; Gormley, R.G.; Zandhuis, P.H.; Baltrus, J.P.

    2007-10-01T23:59:59.000Z

    Synthetic fuels derived from the Fischer-Tropsch (F-T) process using natural gas or coal-derived synthesis gas as feedstocks can be used for powering of ground vehicles, aircraft and ships. Because of their chemical and physical properties, F-T fuels will probably require additives in order to meet specifications with respect to lubricity and seal swell capability for use in ground and air vehicles. These additives can include oxygenates and compounds containing other heteroatoms that may adversely affect thermal stability. In order to understand what additives will be the most beneficial, a comprehensive experimental and computational study of conventional and additized fuels has been undertaken. The experimental approach includes analysis of the trace oxygenate and nitrogen-containing compounds present in conventional petroleum-derived fuels and trying to relate their presence (or absence) to changes in the desired properties of the fuels. This paper describes the results of efforts to test the thermal stability of synthetic fuels and surrogate fuels containing single-component additives that have been identified in earlier research as the best potential additives for promoting seal swelling in synthetic fuels, as well as mixtures of synthetic and petroleum-derived fuels.

  15. Real Beamline Optics from a Synthetic Beam

    SciTech Connect (OSTI)

    Ryan Bodenstein,Michael Tiefenback,Yves Roblin

    2010-05-01T23:59:59.000Z

    The Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab can be described as a series of concatenated beamlines. Methods used to measure the Twiss parameters in closed orbit machines are not applicable in such open ended systems. We are using properly selected sets of real orbits in the accelerator, as one would for numerical analysis. The evolution of these trajectories along the beamline models the behavior of a synthetic beam which deterministically supplements beam profile-based Twiss parameter measurements and optimizes the efficiency of beamline tuning. Examples will be presented alongside a description of the process.

  16. Micro/nanofabricated environments for synthetic biology

    SciTech Connect (OSTI)

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

    2011-01-01T23:59:59.000Z

    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.

  17. A new maintenance friendly concept for bulb type generators

    SciTech Connect (OSTI)

    Scheidl, W.

    1998-07-01T23:59:59.000Z

    Bulb type generators in the rating range up to 15 MW are in a severe competition with geared up machines which operate at much higher speed and are therefore smaller and cheaper. Up to now the conventional bulb type generator in the standard design as it is used on several rivers in Austria and many other countries was not so economic in the lower rating range. A new and maintenance friendly concept for the bulb type generator design especially for these lower rating range ended in a more economic solution and is now able to compete with the geared up machines.

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

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, click here.TelluricPowerCity ofInformation CityIowaCity of Friend, Nebraska

  19. Dear alumnae, alumni and friends, I hope that you will enjoy the tidbits of in-

    E-Print Network [OSTI]

    Hall, Daniel

    friends: Facebook! For those on Facebook, we invite you to join the department's new Facebook page at http://www.facebook

  20. Structural Characteristics of Synthetic Amorphous Calcium Carbonate

    SciTech Connect (OSTI)

    Michel, F. Marc; MacDonald, Jason; Feng, Jian; Phillips, Brian L.; Ehm, Lars; Tarabrella, Cathy; Parise, John B.; Reeder, Richard J. (SBU)

    2008-08-06T23:59:59.000Z

    Amorphous calcium carbonate (ACC) is an important phase involved in calcification by a wide variety of invertebrate organisms and is of technological interest in the development of functional materials. Despite widespread scientific interest in this phase a full characterization of structure is lacking. This is mainly due to its metastability and difficulties in evaluating structure using conventional structure determination methods. Here we present new findings from the application of two techniques, pair distribution function analysis and nuclear magnetic resonance spectroscopy, which provide new insight to structural aspects of synthetic ACC. Several important results have emerged from this study of ACC formed in vitro using two common preparation methods: (1) ACC exhibits no structural coherence over distances > 15 {angstrom} and is truly amorphous; (2) most of the hydrogen in ACC is present as structural H{sub 2}O, about half of which undergoes restricted motion on the millisecond time scale near room temperature; (3) the short- and intermediate-range structure of ACC shows no distinct match to any known structure in the calcium carbonate system; and (4) most of the carbonate in ACC is monodentate making it distinctly different from monohydrocalcite. Although the structure of synthetic ACC is still not fully understood, the results presented provide an important baseline for future experiments evaluating biogenic ACC and samples containing certain additives that may play a role in stabilization of ACC, crystallization kinetics, and final polymorph selection.

  1. Chemistry in Motion: Tiny Synthetic Motors

    E-Print Network [OSTI]

    Peter H. Colberg; Shang Yik Reigh; Bryan Robertson; Raymond Kapral

    2014-11-03T23:59:59.000Z

    In this Account, we describe how synthetic motors that operate by self-diffusiophoresis make use of a self-generated concentration gradient to drive motor motion. A description of propulsion by self-diffusiophoresis is presented for Janus particle motors comprising catalytic and noncatalytic faces. The properties of the dynamics of chemically powered motors are illustrated by presenting the results of particle-based simulations of sphere-dimer motors constructed from linked catalytic and noncatalytic spheres. The geometries of both Janus and sphere-dimer motors with asymmetric catalytic activity support the formation of concentration gradients around the motors. Because directed motion can occur only when the system is not in equilibrium, the nature of the environment and the role it plays in motor dynamics are described. Rotational Brownian motion also acts to limit directed motion, and it has especially strong effects for very small motors. We address the following question: how small can motors be and still exhibit effects due to propulsion, even if only to enhance diffusion? Synthetic motors have the potential to transform the manner in which chemical dynamical processes are carried out for a wide range of applications.

  2. Dissecting Cell Signaling Using Synthetic Biology: New Methods...

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

    Dissecting Cell Signaling Using Synthetic Biology: New Methods for Engineered Control of Protein Kinases and Phosphatases Event Sponsor: Argonne Leadership Computing Facility...

  3. A Synthetic Biology Framework for Programming Eukaryotic Transcription Functions

    E-Print Network [OSTI]

    Khalil, Ahmad S.

    Eukaryotic transcription factors (TFs) perform complex and combinatorial functions within transcriptional networks. Here, we present a synthetic framework for systematically constructing eukaryotic transcription functions ...

  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

    2015-03-13T23:59:59.000Z

    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, BiFeO? (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 La?.?Sr?.?MnO? (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. Fusion: an energy source for synthetic fuels

    SciTech Connect (OSTI)

    Fillo, J A; Powell, J; Steinberg, M

    1980-01-01T23:59:59.000Z

    The decreasing availability of fossil fuels emphasizes the need to develop systems which will produce synthetic fuel to substitute for and supplement the natural supply. An important first step in the synthesis of liquid and gaseous fuels is the production of hydrogen. Thermonuclear fusion offers an inexhaustible source of energy for the production of hydrogen from water. Depending on design, electric generation efficiencies of approx. 40 to 60% and hydrogen production efficiencies by high temperature electrolysis of approx. 50 to 70% are projected for fusion reactors using high temperature blankets. Fusion/coal symbiotic systems appear economically promising for the first generation of commercial fusion synfuels plants. Coal production requirements and the environmental effects of large-scale coal usage would be greatly reduced by a fusion/coal system. In the long term, there could be a gradual transition to an inexhaustible energy system based solely on fusion.

  6. QLRT-2001-00458 "Developing Friendly Rest Rooms for the elderly and the disabled people"

    E-Print Network [OSTI]

    Szmolyan, Peter

    QLRT-2001-00458 "Developing Friendly Rest Rooms for the elderly and the disabled people" FRR Final : Katrina Hands Standalone CBI and Virtual reality CBI : Kenny Morrison #12;QLRT-2001-00458 "Developing opinions about new design features #12;QLRT-2001-00458 "Developing Friendly Rest Rooms for the elderly

  7. OPTIMIZATION-BASED DESIGN OF PLANT-FRIENDLY MULTISINE SIGNALS USING

    E-Print Network [OSTI]

    Mittelmann, Hans D.

    and to the nonlinear, highly interactive distillation column model developed by Weischedel and McAvoy (1980OPTIMIZATION-BASED DESIGN OF PLANT-FRIENDLY MULTISINE SIGNALS USING GEOMETRIC DISCREPANCY CRITERIA@yahoo.com Abstract: The design of constrained, "plant-friendly" multisine input signals that optimize a geometric

  8. CENTRE FOR RESEARCH ON THE CHILD AND FAMILY UNICEF CHILD FRIENDLY

    E-Print Network [OSTI]

    Feigon, Brooke

    CENTRE FOR RESEARCH ON THE CHILD AND FAMILY UNICEF CHILD FRIENDLY CITIES AND COMMUNITIES PROJECT-friendly". Within the next 30 years the urban population of developing countries is set to double from 2 to 4 severely affected by HIV/AIDS and where there is conflict and internal displacement of people. This Ph

  9. IFTP-W: A TCP-Friendly Protocol for Multimedia Applications over Wireless Networks

    E-Print Network [OSTI]

    Miles, Will

    IFTP-W: A TCP-Friendly Protocol for Multimedia Applications over Wireless Networks Hala El on wireless networks is calling for the development of a protocol that is both TCP-friendly and capable of conforming to the constraints of wireless networks. This paper presents IFTP-W, an end-to-end congestion

  10. Properties of potential eco-friendly gas replacements for particle detectors in high-energy physics

    E-Print Network [OSTI]

    Benussi, L; Piccolo, D; Saviano, G; Colafranceschi, S; Kjølbro, J; Yang, D; Chen, G; Ban, Y; Li, Q; Sharma, A

    2015-01-01T23:59:59.000Z

    Modern gas detectors for detection of particles require F-based gases for op- timal performance. Recent regulations demand the use of environmentally un- friendly Freon-based gases to be limited or banned. This review studies properties of potential eco-friendly gas candidate replacements.

  11. Synthetic clay-magnetite aggregates designed for controlled deposition experiments

    E-Print Network [OSTI]

    Dunin-Borkowski, Rafal E.

    Synthetic clay-magnetite aggregates designed for controlled deposition experiments Feinberg, J M of synthetic clay-magnetite aggregates whose physical attributes can be tailored for controlled depositional orientation or oriented aggregation. Grain size distributions of magnetite in three different clay

  12. Directed evolution: an evolving and enabling synthetic biology tool

    E-Print Network [OSTI]

    Zhao, Huimin

    Directed evolution: an evolving and enabling synthetic biology tool Ryan E Cobb1 , Tong Si1 remains a valuable tool for synthetic biology, enabling the identification of desired functionalities from biological entity with the intent of identifying those with desired proper- ties. While a powerful tool

  13. analogue synthetics coumarins: Topics by E-print Network

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

    analogue synthetics coumarins First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Synthetic Analogues of...

  14. Synthetic Turf Fiber Wear Test Progress Report November 2011

    E-Print Network [OSTI]

    Kaye, Jason P.

    Synthetic Turf Fiber Wear Test ­ Progress Report November 2011 Penn State's Center for Sports version of both the European standard for Surfaces for Outdoor Sports Areas - Exposure of Synthetic Turf% plastic. Each sample was filled with crumb rubber to a depth based on manufacturer specifications. Random

  15. Nanomolding Based Fabrication of Synthetic Gecko Foot-Hairs

    E-Print Network [OSTI]

    Sitti, Metin

    Nanomolding Based Fabrication of Synthetic Gecko Foot-Hairs Metin Sitti and Ronald S. Fearing Dept -- This paper proposes two different nanomolding methods to fabricate synthetic gecko foot-hair nanostructures a nano-pore membrane as a template. These templates are molded with silicone rubber, polyimide

  16. Design Considerations for Frequency Responsive Grid Friendly Appliances

    SciTech Connect (OSTI)

    Lu, Ning; Hammerstrom, Donald J.

    2006-05-24T23:59:59.000Z

    The paper addresses design considerations for frequency responsive Grid FriendlyTM appliances (FR-GFAs). Case studies have been done based on the frequency data collected in 2003 in Western Electricity Coordinating Council (WECC) systems. An FR-GFA can turn on/off based on frequency signals and make selective low-frequency load shedding possible at appliance level. FR-GFAs can also be treated as an spinning reserve to maintain a load-to-generation balance under power system normal operation states. The triggering frequency and duration of the FR-GFA device with different frequency setting schemes are simulated. Design considerations of the FR-GFA are then discussed based on simulation results.

  17. Assessment of Environmentally Friendly Refrigerants for Window Air Conditioners

    SciTech Connect (OSTI)

    Bansal, Pradeep [ORNL] [ORNL; Shen, Bo [ORNL] [ORNL

    2014-01-01T23:59:59.000Z

    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.

  18. Molecular Recognition of Insulin by a Synthetic Receptor

    SciTech Connect (OSTI)

    Chinai, Jordan M.; Taylor, Alexander B.; Ryno, Lisa M.; Hargreaves, Nicholas D.; Morris, Christopher A.; Hart, P. John; Urbach, Adam R. (Texas-HSC); (Trinity U)

    2011-08-29T23:59:59.000Z

    The discovery of molecules that bind tightly and selectively to desired proteins continues to drive innovation at the interface of chemistry and biology. This paper describes the binding of human insulin by the synthetic receptor cucurbit[7]uril (Q7) in vitro. Isothermal titration calorimetry and fluorescence spectroscopy experiments show that Q7 binds to insulin with an equilibrium association constant of 1.5 x 10{sup 6} M{sup -1} and with 50-100-fold selectivity versus proteins that are much larger but lack an N-terminal aromatic residue, and with >1000-fold selectivity versus an insulin variant lacking the N-terminal phenylalanine (Phe) residue. The crystal structure of the Q7{center_dot}insulin complex shows that binding occurs at the N-terminal Phe residue and that the N-terminus unfolds to enable binding. These findings suggest that site-selective recognition is based on the properties inherent to a protein terminus, including the unique chemical epitope presented by the terminal residue and the greater freedom of the terminus to unfold, like the end of a ball of string, to accommodate binding. Insulin recognition was predicted accurately from studies on short peptides and exemplifies an approach to protein recognition by targeting the terminus.

  19. Grid FriendlyTM Device Model Development and Simulation

    SciTech Connect (OSTI)

    Lu, Ning; Hammerstrom, Donald J.; Patrick, Stasha N.

    2009-12-30T23:59:59.000Z

    In late 2007, the Bonneville Power Administration (BPA) contracted Pacific Northwest National Laboratory (PNNL) to complete a research project titled Grid-Responsive Demand-Side Control Using Grid Friendly Appliance Technologies [Hammerstrom 2009, DeSteese and Hammerstrom 2009]. Cosponsors included Portland General Electric (PGE) and Puget Sound Energy (PSE). The project focused on applications of the Grid Friendly Appliance (GFA) controller, which is an autonomous controller that was designed to advise devices like appliances concerning valuable demand-side grid services that should be conducted. The controller bases its advice on observations it makes from the ac voltage signal. Electric tank water heaters were selected to be controlled by the GFA controller in this project. Two autonomous responses are addressed herein. First, an under-voltage-responsive water heater is able to recognize sudden reductions in feeder circuit voltage at each water heater and may curtail any electric load that is being consumed by the water heater. These under-voltage events are usually induced by nearby electrical faults. An under-voltage response is necessarily specified by the set of voltage thresholds at which the responsive water heaters would respond. The set of voltages at which the curtailment would be released must also be specified. Additionally, any delays prior to the water heater load becoming curtailed or again released must be specified. For example, a delay may be intentionally imposed prior to curtailing water heater loads to avoid responses during the fault itself. Much longer and randomized delays should be imposed prior to the release of curtailments in order to re-establish diversity of the water heater loads and soften what could otherwise be an abrupt reintroduction of a large aggregated electrical load into the already stressed grid region.

  20. Motion Measurement for Synthetic Aperture Radar.

    SciTech Connect (OSTI)

    Doerry, Armin W.

    2015-01-01T23:59:59.000Z

    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.

  1. Systems Approach and Quantitative Decision Tools for Technology Selection in Environmentally Friendly Drilling

    E-Print Network [OSTI]

    Yu, Ok Y.

    2010-01-16T23:59:59.000Z

    . offsite). Step 6: Construct access road. Step 7: Construct pad (site preparation) including mud reserve pits if applicable. Step 8: Place a rig and other required components. Step 9: Drill the hole. 3.2 Pile Foundation Design Use of a raised...

  2. A Novel Approach to Plant-Friendly Multivariable Identification of Highly Interactive Systems

    E-Print Network [OSTI]

    Mittelmann, Hans D.

    signals. A case study involves a high-purity distillation column that illustrates the usefulness-friendliness in the design procedure is accomplished by using advanced optimization solvers that minimize the crest factor conditions in comparison to classical designs. e-mail: hyunjin.lee@asu.edu To whom all correspondence should

  3. Systems Approach and Quantitative Decision Tools for Technology Selection in Environmentally Friendly Drilling 

    E-Print Network [OSTI]

    Yu, Ok Y.

    2010-01-16T23:59:59.000Z

    .............................................. 79 5-11 Selection procedure and constraints for the ?Rig? subsystem ................... 80 5-12 An example of input scores........................................................................ 80 5-13 Overall attribute score for each... ......................................... 90 6-3 Influence diagram for the drilling site of the case study ............................ 91 6-4 Selection procedure for the ?Rig? subsystem of the case study................. 92 6-5 An example of input scores of the case study...

  4. Local Government Adoption of Aging-Friendly Policies and Programs: A Mixed Methods Approach

    E-Print Network [OSTI]

    Lehning, Amanda J.

    2010-01-01T23:59:59.000Z

    perhaps grant funding, slack resources, and recent increasesperhaps grant funding, slack resources, and recent increasesfinancial resources, including fiscal slack, total revenues,

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

    SciTech Connect (OSTI)

    Zee, Ralph [Auburn University; Schindler, Anton [Auburn University; Duke, Steve [Auburn University; Burch, Thom [Auburn University; Bransby, David [Auburn University; Stafford, Don [Lafarge North America

    2010-08-31T23:59:59.000Z

    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.

  6. A RIGOROUS, ENGINEER-FRIENDLY APPROACH FOR MODELING REALISTIC, COMPOSITE ROTOR BLADES

    E-Print Network [OSTI]

    Yu, Wenbin

    structures of the type encountered in wind turbine blades, helicopter rotor blades, and the like such as wind turbine blades lead to a splitting of the problem into a (usually) linear, two-dimensional cross

  7. Synthetic Nano-Low Density Lipoprotein as Targeted Drug Delivery Vehicle for Glioblastoma Multiforme

    E-Print Network [OSTI]

    Nikanjam, Mina; Blakely, Eleanor A.; Bjornstad, Kathleen A.; Shu, Xiao; Budinger, Thomas F.; Forte, Trudy M.

    2006-01-01T23:59:59.000Z

    Synthetic Nano-Low Density Lipoprotein as Targeted Drugmicroemulsion; peptide; nano-low density lipoproteintherapeutic agents. A synthetic nano-LDL (nLDL) particle was

  8. Ultrafast thermally induced magnetic switching in synthetic ferrimagnets

    SciTech Connect (OSTI)

    Evans, Richard F. L., E-mail: richard.evans@york.ac.uk; Ostler, Thomas A.; Chantrell, Roy W. [Department of Physics, University of York, Heslington, York YO10 5DD (United Kingdom); Radu, Ilie [Institut für Methoden und Instrumentierung der Forschung mit Synchrotronstrahlung, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 15, 12489 Berlin (Germany); Rasing, Theo [Radboud University, Institute for Molecules and Materials, Heyendaalsewg 135, 6525 AJ Nijmegen (Netherlands)

    2014-02-24T23:59:59.000Z

    Synthetic ferrimagnets are composite magnetic structures formed from two or more anti-ferromagnetically coupled magnetic sublattices with different magnetic moments. Here, we report on atomistic spin simulations of the laser-induced magnetization dynamics on such synthetic ferrimagnets and demonstrate that the application of ultrashort laser pulses leads to sub-picosecond magnetization dynamics and all-optical switching in a similar manner as in ferrimagnetic alloys. Moreover, we present the essential material properties for successful laser-induced switching, demonstrating the feasibility of using a synthetic ferrimagnet as a high density magnetic storage element without the need of a write field.

  9. Computational optimization of synthetic water channels.

    SciTech Connect (OSTI)

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

    2012-12-01T23:59:59.000Z

    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.

  10. Retroactivity, modularity, and insulation in synthetic biology circuits

    E-Print Network [OSTI]

    Lin, Allen

    2011-01-01T23:59:59.000Z

    A central concept in synthetic biology is the reuse of well-characterized modules. Modularity simplifies circuit design by allowing for the decomposition of systems into separate modules for individual construction. Complex ...

  11. Molecular Interactions of Plutonium(VI) with SyntheticManganese...

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

    on the surface of well-characterized synthetic manganese-substituted goethite minerals (Fe1-xMnxOOH) was studied using X-ray absorption spectroscopy. We chose to study the...

  12. Survey and Control of Synthetic Organics in Texas Water Supplies 

    E-Print Network [OSTI]

    Batchelor, B.; Shannon, J. D.; Yang, P.

    1981-01-01T23:59:59.000Z

    TR- 109 1981 Survey and Control of Synthetic Organics in Texas Water Supplies B. Batchelor J.D. Shannon P. Yang Texas Water Resources Institute Texas A&M University ...

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

    Open Energy Info (EERE)

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

  14. Synthetic polypeptide-based hydrogel systems for biomaterials

    E-Print Network [OSTI]

    Martin, Mackenzie Marie

    2014-01-01T23:59:59.000Z

    Hydrogels formed from synthetic polypeptides generated by ring opening polymerization (ROP) of a-amino acid N-carboxyanhydrides (NCAs) present a robust material for modeling the interaction between extracellular matrix ...

  15. acid synthetic p17: Topics by E-print Network

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

    within bacteria in order to fine-tune the expression of BioBrick parts and devices. Fortuna, Patrick 2010-12-04 55 Synthesizing Law for Synthetic Biology University of Kansas -...

  16. applied synthetic auxin: Topics by E-print Network

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

    within bacteria in order to fine-tune the expression of BioBrick parts and devices. Fortuna, Patrick 2010-12-04 112 Synthesizing Law for Synthetic Biology University of Kansas -...

  17. Microwave-induced thermoacoustic tomography: reconstruction by synthetic aperture 

    E-Print Network [OSTI]

    Feng, Dazi

    2001-01-01T23:59:59.000Z

    We have applied the synthetic-aperture method to linear-scanning microwave-induced thermoacoustic tomography in biological tissues. A non-focused ultrasonic transducer was used to receive thermoacoustic signals, to which the delay-and-sum algorithm...

  18. What rough beast? Synthetic Biology and the Future of Biosecurity

    E-Print Network [OSTI]

    Mohr, Scott C.

    Synthetic biology seeks to create modular biological parts that can be assembled into useful devices, allowing the modification of biological systems with greater reliability, at lower cost, with greater speed, and by a ...

  19. Synthetic scaffolds and protein assemblies for engineering applications

    E-Print Network [OSTI]

    Norville, Julie Erin, 1980-

    2004-01-01T23:59:59.000Z

    S-layer proteins, which naturally self-assemble on the exterior of cells, provide an interesting basis for the creation of synthetic scaffolds. In this thesis, I created a plasmid which produces a recombinant form of a ...

  20. Synthetic strategies for the design of platinum anticancer drug candidates

    E-Print Network [OSTI]

    Wilson, Justin Jeff

    2013-01-01T23:59:59.000Z

    Chapter 1. The Synthetic Chemistry of Platinum Anticancer Agents Since the inception of cisplatin as a clinically approved anticancer agent, a large number of platinum compounds have been synthesized with the aim of finding ...

  1. Seismic attenuation studies using frequency domain synthetic seismograms

    E-Print Network [OSTI]

    Butler, Theresa Meade

    1979-01-01T23:59:59.000Z

    SEISMIC ATTENUATION STUDIES USING FREQUENCY DOMAIN SYNTHETIC SEISMOGRAMS A Thesis by THERESA MEADE BUTLER Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE... August 1979 Major Subject: Geophysics SEISMIC ATTENUATION STUDIES USING FREQUENCY DOMAIN SYNTHETIC SEI SMOGRAMlS A Thesis by THERESA MEADE BUTLER Approved as to sty1e and content by: rman o Com ttee Head of epartmen (Member) Membe August 1979...

  2. Synthetic reverberating activity patterns embedded in networks of cortical neurons

    E-Print Network [OSTI]

    Roni Vardi; Avner Wallach; Evi Kopelowitz; Moshe Abeles; Shimon Marom; Ido Kanter

    2012-03-26T23:59:59.000Z

    Synthetic reverberating activity patterns are experimentally generated by stimulation of a subset of neurons embedded in a spontaneously active network of cortical cells in-vitro. The neurons are artificially connected by means of conditional stimulation matrix, forming a synthetic local circuit with a predefined programmable connectivity and time-delays. Possible uses of this experimental design are demonstrated, analyzing the sensitivity of these deterministic activity patterns to transmission delays and to the nature of ongoing network dynamics.

  3. HAVE you ever noticed a friend or neighbour driving a new hybrid

    E-Print Network [OSTI]

    Rand, David G.

    HAVE you ever noticed a friend or neighbour driving a new hybrid car and felt pressure to trade? The power of reputation is already being harnessed to protect the environment. Hybrid cars

  4. 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.

  5. A system theoretic safety analysis of friendly fire prevention in ground based missile systems

    E-Print Network [OSTI]

    McCarthy, Scott (Scott Lewis)

    2013-01-01T23:59:59.000Z

    This thesis used Dr. Leveson's STAMP (Systems-Theoretic Accident Model and Process) model of accident causation to analyze a friendly fire accident that occurred on 22 March 03 between a British Tornado aircraft and a US ...

  6. Patent Amicus Briefs: What the Courts' Friends Can Teach Us About the Patent

    E-Print Network [OSTI]

    Loudon, Catherine

    397 Patent Amicus Briefs: What the Courts' Friends Can Teach Us About the Patent System Colleen V....................................................................................................410 IV. Analysis of Patent Amicus Briefs ..........................................................................412 A. Patent "Insiders" Dominate Amicus Filings............................................412 1

  7. New Environmentally Friendly Dispersants for High Temperature Invert-Emulsion Drilling Fluids Weighted by Manganese Tetraoxide

    E-Print Network [OSTI]

    Rehman, Abdul

    2012-02-14T23:59:59.000Z

    This thesis provides a detailed evaluation of different environmentally friendly dispersants in invert-emulsion drilling fluids that can be used to drill wells under difficult conditions such as HPHT. The drilling fluid is weighted by manganese...

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

    DOE Patents [OSTI]

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

    1997-10-21T23:59:59.000Z

    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.

  9. assessing environmentally friendly: Topics by E-print Network

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

    an easyEnvironmental impact for offshore wind farms: Geolocalized Life Cycle Assessment (LCA) approach and floating offshore wind farms. This work was undertaken within the EU-...

  10. A MODELING APPROACH FOR LOCATING LOGISTICS PLATFORMS FOR FAST PARCEL

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 29 A MODELING APPROACH FOR LOCATING LOGISTICS PLATFORMS FOR FAST PARCEL DELIVERY IN URBAN AREAS for optimizing, in a sustainable way (i.e. economical, eco-friendly and societal), the location of logistics has a logistics platform right in its centre (ARENC: 41362 m2 of warehouses and offices

  11. BISMUTH-CERAMIC NANOCOMPOSITES THROUGH BALL MILLING AND LIQUID CRYSTAL SYNTHETIC METHODS

    E-Print Network [OSTI]

    Braun, Paul

    characterized using UV-Vis-NIR absorption spectroscopy. An additional synthetic method based on the infusion

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

    DOE Patents [OSTI]

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

    2005-04-12T23:59:59.000Z

    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.

  13. Dual chain synthetic heparin-binding growth factor analogs

    DOE Patents [OSTI]

    Zamora, Paul O. (Gaithersburg, MD); Pena, Louis A. (Poquott, NY); Lin, Xinhua (Plainview, NY)

    2012-04-24T23:59:59.000Z

    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.

  14. Dual chain synthetic heparin-binding growth factor analogs

    DOE Patents [OSTI]

    Zamora, Paul O. (Gaithersburg, MD); Pena, Louis A. (Poquott, NY); Lin, Xinhua (Plainview, NY)

    2009-10-06T23:59:59.000Z

    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.

  15. Application of Synthetic Diesel Fuels | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T, Inc.'s ReplyApplication of Synthetic Diesel Fuels Application of Synthetic

  16. USER-FRIENDLY, OPEN-SYSTEM SOFTWARE FOR TEACHING PROTECTIVE

    E-Print Network [OSTI]

    such as electromagnetics, circuits, power systems, computers, communications, signal processing, controls, intelligent approaches to modeling protective relays and related power system events indicates a variety of possible of changing the way the models of relays and power system interact is constrained by the specific user

  17. Physics Pathway: A Digital Library Filled with Synthetic Interviews*

    E-Print Network [OSTI]

    Christel, Mike

    Physics Pathway: A Digital Library Filled with Synthetic Interviews* Michael G. Christel-412-268-7796 sms@cs.cmu.edu Dean Zollman Department of Physics Kansas State University Manhattan, KS 66506 1-785-532-1619 dzollman@phys.ksu.edu ABSTRACT Physics Pathway is a digital library available through an Adobe Flash portal

  18. Controlled polymer synthesis--from biomimicry towards synthetic biology

    E-Print Network [OSTI]

    Davis, Ben G.

    . In particular, he develops competitive search methodologies and intelligent decision support systems over lengthscales ranging from a few nm to several microns is generating systems that not only begin and soft materials for synthetic biology. He is currently a research associate at IESL-FORTH, Heraklion

  19. Factors Contributing to Petroleum Foaming. 2. Synthetic Crude Oil Systems

    E-Print Network [OSTI]

    Kilpatrick, Peter K.

    to the petroleum industry. Nonaqueous foams occur in the production of and refining of crude oil. Crude oil foamsFactors Contributing to Petroleum Foaming. 2. Synthetic Crude Oil Systems Nael N. Zaki, Michael K August 28, 2001 The influence of petroleum asphaltenes and resins on stabilizing model oil foams

  20. Synthetic aperture design for increased SAR image rate

    DOE Patents [OSTI]

    Bielek, Timothy P. (Albuquerque, NM); Thompson, Douglas G. (Albuqerque, NM); Walker, Bruce C. (Albuquerque, NM)

    2009-03-03T23:59:59.000Z

    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.

  1. Matching a Human Walking Sequence with a VRML Synthetic Model

    E-Print Network [OSTI]

    Buades Rubio, Jose María

    animation, computer vision, medical rehabilitation, virtual reality and entertainment. There is a greatMatching a Human Walking Sequence with a VRML Synthetic Model J. M. Buades, Ramon Mas and Francisco University of the Balearic Islands 07071 Palma de Mallorca, SPAIN {josemaria,ramon,paco}@anim.uib.es Abstract

  2. More U. S. , Canada synthetic rubber use seen

    SciTech Connect (OSTI)

    Rhoad, M.J.

    1980-02-04T23:59:59.000Z

    According to M.J. Rhoad of the International Institute of Synthetic Rubber Producers Inc., the total U.S. and Canadian natural and synthetic rubber consumption will amount to (in thousands of metric tons/yr) 3385, 3305, 3855, and 4295 for 1979, 1980, 1985, and 1990, respectively, with synthetic rubber use increasing from an estimated 2.54 million metric tons/yr in 1979 to 3.27 million metric tons/yr by 1990, including an increase from 2.35 to 3.02 million metric tons/yr for the U.S. Rubber consumption for tires and tire products in the U.S. will increase at 2%/yr, with synthetic rubber accounting for 61.9% of the rubber used for tires in 1990, down from the 63.4% in 1979. In 1980, the decline in automobile and tire production will cause a 2.4% decline in new rubber consumption. During 1979-90, the amount of rubber used for nontire purposes will increase at 2.5%/yr.

  3. Progress in the Advanced Synthetic-Diamond Drill Bit Program

    SciTech Connect (OSTI)

    Glowka, D.A. [Sandia National Labs., Albuquerque, NM (United States); Dennis, T. [Dennis Tool Co., Houston, TX (United States); Le, Phi [Security DBS, Houston, TX (United States); Cohen, J. [Maurer Engineering, Inc., Houston, TX (United States); Chow, J. [Hughes Christensen Co., Salt Lake City, UT (United States)

    1995-11-01T23:59:59.000Z

    Cooperative research is currently underway among five drill bit companies and Sandia National Laboratories to improve synthetic-diamond drill bits for hard-rock applications. This work, sponsored by the US Department of Energy and individual bit companies, is aimed at improving performance and bit life in harder rock than has previously been possible to drill effectively with synthetic-diamond drill bits. The goal is to extend to harder rocks the economic advantages seen in using synthetic-diamond drill bits in soft and medium rock formations. Four projects are being conducted under this research program. Each project is investigating a different area of synthetic diamond bit technology that builds on the current technology base and market interests of the individual companies involved. These projects include: optimization of the PDC claw cutter; optimization of the Track-Set PDC bit; advanced TSP bit development; and optimization of impregnated-diamond drill bits. This paper describes the progress made in each of these projects to date.

  4. Meta-DNA: synthetic biology via DNA nanostructures and

    E-Print Network [OSTI]

    Reif, John H.

    Meta-DNA: synthetic biology via DNA nanostructures and hybridization reactions Harish Chandran1 of DNA manipulations achieved by protein enzymes be simulated via simple DNA hybridization chemistry? In this work, we develop a biochemical system which we call meta-DNA (abbreviated as mDNA), based on strands

  5. Microwave-induced thermoacoustic tomography: Reconstruction by synthetic aperture

    E-Print Network [OSTI]

    Wang, Lihong

    Microwave-induced thermoacoustic tomography: Reconstruction by synthetic aperture Dazi Feng, Yuan thermoacoustic signals, to which the delay-and-sum algorithm was applied for image reconstruc- tion. We greatly-induced thermoacoustic tomography based on focused transducers. Two mi- crowave sources, which had frequencies of 9 and 3

  6. Defossiling Fuel: How Synthetic Biology Can Transform Biofuel Production

    E-Print Network [OSTI]

    Defossiling Fuel: How Synthetic Biology Can Transform Biofuel Production David F. Savage , Jeffrey production is pre- dicted to peak soon, it is reason- able to assume that unconventional fossil fuel sources and economic energy volatility, and smoothing the transition from fossil fuels in the distant future

  7. Synthetic Aperture Radar Imaging with Motion Estimation and Liliana Borcea

    E-Print Network [OSTI]

    Papanicolaou, George C.

    Callaghan George Papanicolaou Abstract We introduce from first principles a synthetic aperture radar (SAR calibrated small apertures, (b) preliminary motion estimation from the data using the Wigner transform-band persistent surveillance SAR is a specific application that is covered by our analysis. Detailed numerical

  8. Electron holography and magnetic properties of exsolved synthetic titanomagnetites

    E-Print Network [OSTI]

    Dunin-Borkowski, Rafal E.

    can inform our interpretation of both remanence measurements and bulk rock properties. #12;Electron holography and magnetic properties of exsolved synthetic titanomagnetites Church, N S nc-scale exsolution structures, but the contribution to bulk magnetic properties of these assemblages of iron

  9. Winter 2009 Profile page ProfileProfileFor Alumni, Parents, and Friends of the University of Minnesota, MorrisFor Alumni, Parents, and Friends of the University of Minnesota, Morris

    E-Print Network [OSTI]

    Amin, S. Massoud

    is a project of the Offices of External Relations and University Relations with funding support fromWinter 2009 Profile page ProfileProfileFor Alumni, Parents, and Friends of the University of Minnesota, MorrisFor Alumni, Parents, and Friends of the University of Minnesota, Morris Volume XIII

  10. Exploring Phase Change Memory and 3D Die-Stacking for Power/Thermal Friendly, Fast and Durable Memory Architectures

    E-Print Network [OSTI]

    Kavi, Krishna

    Exploring Phase Change Memory and 3D Die-Stacking for Power/Thermal Friendly, Fast and Durable) as a promising candidate to achieve scalable, low power and thermal friendly memory system architecture leakages and retention time. DRAM-based main memory is also consuming an increasing proportion of the power

  11. Modular Design of Artificial Tissue Homeostasis: Robust Control through Synthetic Cellular Heterogeneity

    E-Print Network [OSTI]

    Miller, Miles Aaron

    Synthetic biology efforts have largely focused on small engineered gene networks, yet understanding how to integrate multiple synthetic modules and interface them with endogenous pathways remains a challenge. Here we present ...

  12. Synthetic Hexaploid Wheat as a Source of Improvement for Winter Wheat (Triticum aestivum L.) in Texas

    E-Print Network [OSTI]

    Cooper, Jessica Kay

    2012-02-14T23:59:59.000Z

    of this research was to evaluate the potential and performance of synthetic wheat in Texas. Ten elite primary synthetics from the International Maize and Wheat Improvement Center (CIMMYT), screened for desirable traits, were backcrossed to two Texas cultivars, TAM...

  13. Nanofabricated collagen-inspired synthetic elastomers for primary rat hepatocyte culture

    E-Print Network [OSTI]

    Bettinger, Christopher J.

    Synthetic substrates that mimic the properties of extracellular matrix proteins hold significant promise for use in systems designed for tissue engineering applications. In this report, we designed a synthetic polymeric ...

  14. Safe, secure and ethical? : assessing and regulating risks associated with synthetic biology

    E-Print Network [OSTI]

    Regårdh, Pernilla C. (Pernilla Christina)

    2011-01-01T23:59:59.000Z

    Synthetic biology is an emerging field, with a rapidly developing academic-industrial base and the promise of extensive product launches over the next few years. An intense debate over the risks and benefits of synthetic ...

  15. 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

    2014-04-15T23:59:59.000Z

    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.

  16. Coquelicot: A User-Friendly Library of Real Analysis Sylvie Boldo, Catherine Lelay and Guillaume Melquiond

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Coquelicot: A User-Friendly Library of Real Analysis for Coq Sylvie Boldo, Catherine Lelay of theorems on real analysis. Unfortunately, this standard library is lacking some widely used results of integrals and derivatives are based on dependent types, which make them especially cumbersome to use

  17. Removing of Formation Damage and Enhancement of Formation Productivity Using Environmentally Friendly Chemicals

    E-Print Network [OSTI]

    Mahmoud, Mohamed Ahmed Nasr Eldin

    2012-07-16T23:59:59.000Z

    (GLDA) a newly developed environmentally friendly chelate was examined as stand-alone stimulation fluid in deep oil and gas wells. In this study we used GLDA to stimulate carbonate cores (calcite and dolomite). GLDA was also used to stimulate and remove...

  18. Optimization-based Design of Plant-Friendly Multisine Signals using Geometric Discrepancy Criteria

    E-Print Network [OSTI]

    Mittelmann, Hans D.

    by applying it to a linear problem example and to the nonlinear, highly interactive distillation column modelOptimization-based Design of Plant-Friendly Multisine Signals using Geometric Discrepancy Criteria; experimental testing represents the most time-consuming step in this task. The design of constrained, "plant

  19. Wide Ruled: A Friendly Interface to Author-Goal Based Story Generation

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    Wide Ruled: A Friendly Interface to Author-Goal Based Story Generation James Skorupski1 , Lakshmi@cs.ucsc.edu 2 Electronic Arts Abstract. We present Wide Ruled, an authoring tool for the creation of generative stories. It is based on the Universe author-goal-based model of story generation, and extends this model

  20. 11 A WYSIWYG Interface for User-Friendly Access to Geospatial Data Collections

    E-Print Network [OSTI]

    Jenny, Bernhard

    11 A WYSIWYG Interface for User-Friendly Access to Geospatial Data Collections Helen Jenny1 offer online access to their geospatial data repositories. Users can visually browse and some- times greatly from novice to GIS expert. Two types of user interfaces for geospatial data collections

  1. PUBLISHED OCCASIONALLY BY THE FRIENDS OF THE BANCROFT LIBRARY UNIVERSITY OF CALIFORNIA, BERKELEY 4, CALIFORNIA

    E-Print Network [OSTI]

    California at Berkeley, University of

    .m. at the Bancroft Library, Library Annex, on the University campus at Berkeley. Mr. Carl I. Wheat, author. Photocopies of letters and a family Bible were added by Mrs. A. J. Sturzenegger of Los Angeles, a great-comefirst-servedbasis. #12;Carl I. Wheat CARL I. WHEAT, Chairman of the Friends of the Bancroft Library, who will deliver

  2. Design and Control of a Bio-Inspired Human-Friendly Robot

    E-Print Network [OSTI]

    Park, Yong-Lae

    behavior when human contact occurs. However, attaining established levels of performance while ensuring a variety of commercial uses, applications for human friendly robots have emerged in medicine, home care elastic actuator [8]. Other works have employed variable compliance [2] and/or compliant, energy

  3. Moment-based Uniform Deviation Bounds for k-means and Friends

    E-Print Network [OSTI]

    Wang, Deli

    Moment-based Uniform Deviation Bounds for k-means and Friends Matus Telgarsky Sanjoy Dasgupta are fit to m points by heuristically minimizing the k-means cost; what is the corresponding fit over this mechanism, a soft clustering variant of k-means cost is also considered, namely the log likelihood of a Gaus

  4. PERSPECTIVE For alumni and friends of the UW-Madison College of Engineering

    E-Print Network [OSTI]

    Sheridan, Jennifer

    of Steenbock Professor of Chemical and Biological Engineering James Dumesic. Virent just completed its third1 PERSPECTIVE For alumni and friends of the UW-Madison College of Engineering Transferring Technology Engineering research for the real world COLLEGE OF ENGINEERING UNIVERSITY OF WISCONSIN

  5. Fisherman's Guide to Astronomy 1 Four friends went out on a night fishing expedition.

    E-Print Network [OSTI]

    Aslaksen, Helmer

    #12;Fisherman's Guide to Astronomy 1 Preface Four friends went out on a night fishing expedition around them has a myriad of impacts on his fishing productivity. More importantly-water fishing. We hope with this short guide, some questions relating salt-water fishing and astronomy

  6. Properties of potential eco-friendly gas replacements for particle detectors in high-energy physics

    E-Print Network [OSTI]

    Benussi, L; Piccolo, D; Saviano, G; Colafranceschi, S; Kjølbro, J; Sharma, A; Yang, D; Chen, G; Ban, Y; Li, Q

    2015-01-01T23:59:59.000Z

    Modern gas detectors for detection of particles require F-based gases for optimal performance. Recent regulations demand the use of environmentally unfriendly F-based gases to be limited or banned. This review studies properties of potential eco-friendly gas candidate replacements.

  7. Developments | i FOR DONORS AND FRIENDS OF MICHIGAN STATE UNIVERSITY WINTER 2014

    E-Print Network [OSTI]

    Developments | i FOR DONORS AND FRIENDS OF MICHIGAN STATE UNIVERSITY WINTER 2014 Trail Blazing ofprivatephilanthropyatMichiganStateUniversity. Vice President for University Advancement Robert W. Groves Editorial Team Creative Partners Michigan State University University Advancement University Development Spartan Way 535

  8. Highly-Interactive and User-Friendly Web Application for People with Diabetes

    E-Print Network [OSTI]

    Andry, François

    Highly-Interactive and User-Friendly Web Application for People with Diabetes Francois Andry, Larry. One Waters Park Drive ­ Suite 280 San Mateo, CA 94403, USA Abstract ­ LifeSensor Diabetes is a module that is coupled with a web-based personal health record (PHR) for patients with type 2 diabetes. In this paper we

  9. Digital libraries in a clinical setting: friend or foe? Anne Adams, and Ann Blandford

    E-Print Network [OSTI]

    Blandford, Ann

    1 Digital libraries in a clinical setting: friend or foe? Anne Adams, and Ann Blandford Middlesex University, Computer Science Dept, Bounds Green Road, London, N11 2NQ, U.K. {A. Adams, A increased the importance of web accessible digital libraries for this user community. To understand

  10. Synthetic Lung Tumor Data Sets for Comparison of Volumetric Algorithms1

    E-Print Network [OSTI]

    Bernal, Javier

    Synthetic Lung Tumor Data Sets for Comparison of Volumetric Algorithms1 Adele P. Peskin of synthetic lung tumor data in which synthetic tumors of known volume are embedded in clinical lung computerized tomographic (CT) data in different background settings in the lung. Because the change

  11. It is with great sadness that we bid a fond aloha pumehana to Professor Klaus Wyrtki, a great scientist, and a true friend and mentor

    E-Print Network [OSTI]

    scientist, and a true friend and mentor to his many students and colleagues throughout the world. He passed

  12. Student attitudes toward the threat of nuclear war: Friends as influential reference persons

    SciTech Connect (OSTI)

    Marasch, M.J.

    1992-01-01T23:59:59.000Z

    A renewed interest in research into the psychology of the threat of nuclear war occurred in the past decade as national attention focused increasingly on the arms race between the US and the USSR. Some of this research began the task of exploring the social influences upon attitudes and responses to the nuclear threat. Research on friends as potential influences upon nuclear attitudes was minimal. The present study investigated the role of college friends as potential reference persons in the formation of nuclear attitudes. A battery of questionnaires addressing various nuclear war and non-nuclear war attitudes was completed by 200 student-friend dyads from introductory psychology and sociology courses at the University of North Dakota. Three hypotheses were presented in this study. One hypothesis was that students would perceive their friends as having similar attitudes toward the threat of nuclear war. A second hypothesis was that the actual attitudes between pairs of students and friends would be similar. The third hypothesis was that the attitudes would have become more similar over the course of the development of the friendship (as measured retrospectively). The first hypothesis was borne out by the data. The second and third hypotheses were not supported. There are several implications of the findings. One implication is that the nuclear issue may not be as salient to college students as other, more immediate, issues. Another implication is that a relative lack of communication between college students on political issues precludes more effective mutual influence upon the development and change of such attitudes. A false consensus bias appeared to be operative when the students perceived that their attitudes were similar. Further discussion is presented in regard to past and future psychological research upon nuclear war attitudes.

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

    DOE Patents [OSTI]

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

    2013-07-09T23:59:59.000Z

    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.

  14. Bringing Standards to Life: Synthetic Biology Standards and Intellectual Property

    E-Print Network [OSTI]

    Torrance, Andrew W.; Kahl, Linda

    2014-01-01T23:59:59.000Z

    ); Joachim Henckel & Stephen M. Maurer, The Economics of Synthetic Biology, MOL. SYST. BIOL., June 5, 2007, available at http://www.nature.com/msb/journal/v3/n1/full/msb4100161.html; David Cohn, Open-Source Biology Evolves, WIRED (Jan. 17, 2005), http... different genetic contexts.55 Other tools that help rationally Linton et al., Translocation of Green F luorescent Protein by Comparative Analysis with Multiple Signal Peptides, 7 BIOTECHNOL. J. 667 (2012); Raul Cuero, J. Lilly & David S. Mc...

  15. CO2 Removal using a Synthetic Analogue of Carbonic Anhydrase

    SciTech Connect (OSTI)

    Harry Cordatos

    2010-09-14T23:59:59.000Z

    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.

  16. 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)

    1982-01-01T23:59:59.000Z

    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.

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

    DOE Patents [OSTI]

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

    1982-05-18T23:59:59.000Z

    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.

  18. 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

  19. 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

  20. Synthetic Approaches to Skeletally Diverse Sultams Using Vinyl- and ?-Halo Benzenesulfonamides

    E-Print Network [OSTI]

    Jeon, KyuOk

    2012-08-31T23:59:59.000Z

    ,?-unsaturated 5- and 6-membered sultams. These 5- and 6-membered sultams were prepared and applied to further diversifications using aza-Michael reactions, cycloadditions, alkylation/benzylations and propargylation-[3+2]-cycloadditions. Utilizing the aza...

  1. Tandem Catalysis A Highly Efficient and Rapid Approach to Synthetic Elaboration

    E-Print Network [OSTI]

    Stoltz, Brian M.

    diiodide catalyzed Mukaiyama Michael-aldol reactions C.) Zirconium catalyzed synthesis of !-cyanohydrins D and rhodium catalyzed annulation. B.) Cobalt catalyzed annulation and cycloaddition C.) Rapid synthesis of pyrroles and furans D.) Organocatalytic / Lewis acid tandem catalysis 5.) Conclusions Tandem catalysis

  2. An Approach to Ground Moving Target Indication Using Multiple Resolutions of Multilook Synthetic Aperture Radar Images

    E-Print Network [OSTI]

    Akers, Geoffrey

    2009-12-15T23:59:59.000Z

    D445 u1D461u1D465 (ru1D460,u1D461)u1D445u1D45Fu1D465 (ru1D460,ru1D45F,u1D461) uni222B.alt02 u1D447 u1D452?u1D457u1D7140u1D461?u1D6FF[u1D461?u1D461? ?u1D70F (ru1D460,ru1D45F,u1D461)]u1D460(u1D461?)u1D451u1D461?, (2.8) 17 where T is the transit signal...460)2. Using this approximation and the sifting property of integrating the delta function results in u1D70C(ru1D460,ru1D45F,u1D461) = u1D43A(ru1D460)u1D445(r u1D460) 2u1D452 ?u1D457u1D7140u1D70F(ru1D460,ru1D45F,u1D461)u1D460(u1D461?u1D70F (ru1D460,ru1...

  3. Metering Approaches

    Broader source: Energy.gov [DOE]

    Metering approaches vary depending on facility design and intended purpose (e.g., administrative offices, laboratory, warehouse, etc.). No one approach fits all applications. In fact, different...

  4. P r e s e n t Dear Friends and Alumni,

    E-Print Network [OSTI]

    Tipple, Brett

    2013 T h e P r e s e n t #12;2 Dear Friends and Alumni, - - L E T T E R F R O M T H E D E A N #12 & Geophysics Fan-Chi Lin Geology & Geophysics Michael Simpson Metallurgical Engineering s t u d e n t s i n t h e n e w s up and pres- ent a detailed - ute presenta- tion to a panel - a question

  5. A user-friendly computer simulation of a spark ignition engine

    E-Print Network [OSTI]

    Berrios, Ivan

    1993-01-01T23:59:59.000Z

    . This simulation is not intended for more specific engine characteristics such as combustion chamber geometry, inlet manifold design, spark-plug placement and the like. This research is an extension of the work done in MEEN 410 "Internal Coinbustion Engines...A USER-FRIENDLY COMPUTER SIMULATION OF A SPARK IGNITION ENGINE A Thesis by IVAN BERRIOS Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE...

  6. Adolescent Perceptions of Delinquent Behavior Based on Individual Smoking Status: Friends and Peers

    E-Print Network [OSTI]

    Thomsen, Cortney

    2012-07-16T23:59:59.000Z

    to incorporate adolescent risk perception has been recorded in other 5 publications (Smith, McKyer & Larsen, 2010; Diep, 2009; Fleary, Heffer, McKyer & Newman, 2009). The questionnaire psychometrics were evaluated in 2009 and found to be a conclusive... tool to measure individual risk behaviors and perceptions (Smith, McKyer & Larsen, 2010). Measures of internal consistency for the instrument as applied to the current sample yielded the following values: r = .856 (Peer scale), and r = .880 (Friend...

  7. Five synthetic rubber pond liners protect against leakage and weather

    SciTech Connect (OSTI)

    Weinreich, G.; Hofsess, R.; Toy, D.A.

    1987-03-01T23:59:59.000Z

    More than 137 million cu ft of pipeline quality gas is produced daily at the Great Plains Coal Gasification Project in Beulah, ND. The facility is the only commercial plant in the US which produces gaseous and liquid fuels from low-grade coal. The plant needs to recycle and reuse 100% of the organic process wastewater, requiring a complicated treatment system of cooling towers, evaporators, a liquid waste incinerator and other units, each of which has its own surge pond. In total, the plant has five surge ponds which hold near 80 million gallons. To prevent the seepage of wastewater from the surge ponds into the ground water, a liner material was needed that would fulfill several design criteria. The liner had to be resistant to degradation caused by a very wide range of temperatures and it had to have a low coefficient of expansion. Resistance to both organic and inorganic chemical substances was another key requirement. Finally, the liner material needed to be easy to seam during field installation. An elastomeric membrane liner using the synthetic rubber and reinforcing polyester scrim best met the plant's requirements. One of the primary reasons for selecting synthetic rubber was its low coefficient of expansion. Extreme seasonal weather conditions, with temperatures ranging from below zero in the winter to over 100/sup 0/F in the summer, are common in North Dakota. And because the level of wastewater in the ponds constantly varies, a liner is frequently exposed to the elements. Overall, the synthetic rubber pond liners have performed through extreme weather conditions and have proven to be a cost-effective solution to wastewater storage at the gasification project.

  8. Fair Weather Friends or Pillars of Support: Assessing the Sources of Legitimacy of EU Governance Among the Public Across Europe

    E-Print Network [OSTI]

    Bastin, Mariah Margareta

    2013-02-04T23:59:59.000Z

    ABSTRACT Fair Weather Friends or Pillars of Support: Assessing the Sources of Legitimacy of EU Governance Among the Public Across Europe Out of the current sovereign debt crisis, the continuing debate over the proper role and responsibility...

  9. Fair Weather Friends or Pillars of Support: Assessing the Sources of Legitimacy of EU Governance Among the Public Across Europe 

    E-Print Network [OSTI]

    Bastin, Mariah Margareta

    2013-02-04T23:59:59.000Z

    ABSTRACT Fair Weather Friends or Pillars of Support: Assessing the Sources of Legitimacy of EU Governance Among the Public Across Europe Out of the current sovereign debt crisis, the continuing debate over the proper role and responsibility...

  10. Social Norms Among Peers and Social Norms Among Friends and Their Influences on Adolescents’ Sexual Risk Perceptions

    E-Print Network [OSTI]

    Diep, Cassandra Somadevi

    2012-02-14T23:59:59.000Z

    The influence of peers and peer norms is a significant health determinant of adolescent sexual activity, yet little is known in health education about differences between peer pressure and friend pressure on adolescents. The objective of this study...

  11. Fate of Mercury in Synthetic Gypsum Used for Wallboard Production

    SciTech Connect (OSTI)

    Jessica Sanderson

    2007-12-31T23:59:59.000Z

    This report presents and discusses results from the project 'Fate of Mercury in Synthetic Gypsum Used for Wallboard Production', performed at five different full-scale commercial wallboard plants. Synthetic gypsum produced by wet flue gas desulfurization (FGD) systems on coal-fired power plants is commonly used in the manufacture of wallboard. This practice has long benefited the environment by recycling the FGD gypsum byproduct, which is becoming available in increasing quantities, decreasing the need to landfill this material, and increasing the sustainable design of the wallboard product. However, new concerns have arisen as recent mercury control strategies involve the capture of mercury in FGD systems. The objective of this study has been to determine whether any mercury is released into the atmosphere at wallboard manufacturing plants when the synthetic gypsum material is used as a feedstock for wallboard production. The project has been co-funded by the U.S. DOE National Energy Technology Laboratory (Cooperative Agreement DE-FC26-04NT42080), USG Corporation, and EPRI. USG Corporation is the prime contractor, and URS Group is a subcontractor. The project scope included seven discrete tasks, each including a test conducted at various USG wallboard plants using synthetic gypsum from different wet FGD systems. The project was originally composed of five tasks, which were to include (1) a base-case test, then variations representing differing power plant: (2) emissions control configurations, (3) treatment of fine gypsum particles, (4) coal types, and (5) FGD reagent types. However, Task 5,could not be conducted as planned and instead was conducted at conditions similar to Task 3. Subsequently an opportunity arose to test gypsum produced from the Task 5 FGD system, but with an additive expected to impact the stability of mercury, so Task 6 was added to the project. Finally, Task 7 was added to evaluate synthetic gypsum produced at a power plant from an additional coal type. In the project, process stacks in the wallboard plant were sampled using the Ontario Hydro method. In every task, the stack locations sampled included a gypsum dryer and a gypsum calciner. In Tasks 1 and 4 through 7, the stack of the dryer for the wet wallboard product was also tested. Also at each site, in-stream process samples were collected and analyzed for mercury concentration before and after each significant step in wallboard production. These results and process data were used to construct mercury mass balances across the wallboard plants. The results from the project showed a wide range of percentage mercury losses from the synthetic gypsum feedstocks as measured by the Ontario Hydro method at the process stacks, ranging from 2% to 55% of the mercury in the gypsum feedstock. For the tasks exceeding 10% mercury loss across the wallboard plant, most of the loss occurred across the gypsum calciner. When total wallboard emissions remained below 10%, the primary emission location varied with a much less pronounced difference in emission between the gypsum dryer, calciner and board dryer. For all seven tasks, the majority of the mercury emissions were measured to be in the elemental form (Hg{sup 0}). Overall, the measured mercury loss mass rates ranged from 0.01 to 0.17 grams of mercury per dry ton of synthetic gypsum processed, or 0.01 to 0.4 pounds of mercury released per million square feet of wallboard produced from synthetic gypsum. The Coal Combustion Product Production and Use Survey from the American Coal Ash Association (ACAA) indicate that 7,579,187 short tons of synthetic gypsum were used for wallboard production in 2006. Extrapolating the results of this study to the ACAA industry usage rate, we estimate that mercury releases from wallboard production plants in 2006 ranged between 150 to 3000 pounds for the entire U.S. wallboard industry. With only seven sets of wallboard plant measurements, it is difficult to draw firm conclusions about what variables impact the mercury loss percentages across the wallboard plants. One significant o

  12. Synthetic fuel concept to steal CO2 from air

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our InstagramStructureProposed Action(Insert DirectiveSynthetic fuel concept

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

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our InstagramStructureProposed Action(Insert DirectiveSynthetic fuel

  14. Synthetic fuels from peat: state-of-the-art review

    SciTech Connect (OSTI)

    Punwani, D.V.

    1980-01-01T23:59:59.000Z

    The world has significant resources of peat. Total energy contained in these resources is estimated to be equivalent to over 1800 billion barrels of oil. Peat has been used extensively in Europe and Russia for years as a source of energy. In the United States, where peat resources are estimated at equivalent to 240 billion barrels of oil, peat is not used commercially as a source of energy. In 1974, the Institute of Gas Technology (IGT) initiated peat gasification research under the sponsorship of the Minnesota Gas Company (Minnegasco). The results of that work, continued at IGT under the sponsorship of the US Department of Energy (DOE) and Minnegasco, show that on the basis of chemistry and kinetics, peat is a better raw material for making synthetic fuels than coal. This paper reviews the state-of-the-art of the total system of taking peat from the ground and converting it to synthetic fuels. This system incorporates subsystems on harvesting, dewatering, and conversion processes. The world peat resources and environmental effects on large-scale peat utilization are also reviewed.

  15. Economical utilization of natural gas to produce synthetic petroleum liquids

    SciTech Connect (OSTI)

    Agee, K.L.; Agee, M.A. [Syntroleum Corp., Tulsa, OK (United States); Willingham, F.Y.; Trepper, E.L. [Bateman Engineering, Inc., Denver, CO (United States)

    1996-12-31T23:59:59.000Z

    A new process for converting pipeline quality or subquality natural gas into liquid fuels and other petroleum products is described. The technology, developed by Syntroleum Corporation, utilizes autothermal reforming with air to produce a nitrogen-diluted synthesis gas having a near ideal ratio for converting into synthetic hydrocarbons via Fischer-Tropsch (F-T) synthesis. A proprietary F-T catalyst system, designed to operate in a nitrogen-diluted atmosphere, achieves conversion rates comparable to conventional F-T processes without the need for recycle and the associated recompression equipment. This results in potential plant capital costs low enough to make conversion of remote and or subquality gas into synthetic fuels economical, based on current oil prices. The process is energy self-sufficient and compact enough to be constructed in 5,000 to 10,000 b/d plants on floating or platform facilities to utilize offshore gas reserves. The liquid fuels produced by the process are free of sulfur and aromatics. The process has been demonstrated at pilot-scale. Numerous engineering studies and cost estimates have been conducted to provide the information needed for economic evaluation and confident scale-up. This paper also outlines improvements to the process currently under development and how the process presents new opportunities for gas processors.

  16. SciTech Connect: Synthetic Biology and the U.S. Biotechnology...

    Office of Scientific and Technical Information (OSTI)

    of Publication: United States Language: English Subject: 60 APPLIED LIFE SCIENCES; 09 BIOMASS FUELS; 29 ENERGY PLANNING, POLICY, AND ECONOMY synthetic biology, biotechnology...

  17. Reduction of NOx in Synthetic Diesel Exhaust via Two-Step Plasma...

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

    Citation: Tonkyn RG, SE Barlow, and J Hoard.2003."Reduction of NOx in Synthetic Diesel Exhaust via Two-Step Plasma-Catalysis Treatment."Applied Catalysis. B,...

  18. HE3286, an oral synthetic steroid, treats lung inflammation in mice without immune suppression

    E-Print Network [OSTI]

    2010-01-01T23:59:59.000Z

    implications for therapy. Treat Respir Med 2004, 3:147-59.as a potential agent to treat autoimmune diseases. Autoimmunan oral synthetic steroid, treats lung inflammation in mice

  19. Uncertainty in synthetic biology for release and possibilities for regulation under the Toxic Substances Control Act

    E-Print Network [OSTI]

    Lightfoot, Shlomiya

    2014-01-01T23:59:59.000Z

    The emerging field of synthetic biology is developing rapidly and promises diverse applications. Many anticipated applications, particularly those involving release of engineered microbes into the environment or human ...

  20. Molecular Interactions of Plutonium(VI) with Synthetic Manganese-Substituted Goethite

    E-Print Network [OSTI]

    Hu, Yung-Jin

    2011-01-01T23:59:59.000Z

    VI) with the Iron Oxide Goethite, University of California,Values for Synthetic Goethite and Pyrolusite" submitted tothe two Mn-substituted goethite minerals used in this study.

  1. Fate of Mercury in Synthetic Gypsum Used for Wallboard Production

    SciTech Connect (OSTI)

    Jessica Sanderson; Gary M. Blythe; Mandi Richardson

    2006-12-01T23:59:59.000Z

    This report presents and discusses results from Task 6 of the study 'Fate of Mercury in Synthetic Gypsum Used for Wallboard Production,' performed at a full-scale commercial wallboard plant. Synthetic gypsum produced by wet flue gas desulfurization (FGD) systems on coal-fired power plants is commonly used in the manufacture of wallboard. This practice has long benefited the environment by recycling the FGD gypsum byproduct, which is becoming available in increasing quantities, decreasing the need to landfill this material, and increasing the sustainable design of the wallboard product. However, new concerns have arisen as recent mercury control strategies involve the capture of mercury in FGD systems. The objective of this study is to determine whether any mercury is released into the atmosphere when the synthetic gypsum material is used as a feedstock for wallboard production. The project is being co-funded by the U.S. DOE National Energy Technology Laboratory (Cooperative Agreement DE-FC26-04NT42080), USG Corporation, and EPRI. USG Corporation is the prime contractor, and URS Group is a subcontractor. The project scope now includes six discrete tasks, each conducted at various USG wallboard plants using synthetic gypsum from different FGD systems. The project was originally composed of five tasks, which were to include (1) a baseline test, then variations representing differing power plant: (2) emissions control configurations, (3) treatment of fine gypsum particles, (4) coal types, and (5) FGD reagent types. However, Task 5, which was to include testing with an alternate FGD reagent, could not be conducted as planned. Instead, Task 5 was conducted at conditions similar to Task 3, although with gypsum from an alternate FGD system. Subsequent to conducting Task 5 under these revised conditions, an opportunity arose to test gypsum produced at the same FGD system, but with an additive (Degussa Corporation's TMT-15) being used in the FGD system. TMT-15 was expected to impact the stability of mercury in synthetic gypsum used to produce wallboard, so Task 6 was added to the project to test this theory. In this project, process stacks in the wallboard plant have been sampled using the Ontario Hydro method. For every task, the stack locations sampled have included a dryer for the wet gypsum as it enters the plant and a gypsum calciner. For Tasks 1, 4, 5 and 6, the stack of the dryer for the wet wallboard product was also tested. Also at each site, in-stream process samples were collected and analyzed for mercury concentration before and after each significant step in wallboard production. The Ontario Hydro results, process sample mercury concentration data, and process data were used to construct mercury mass balances across the wallboard plants. Task 6 was conducted at a wallboard plant processing synthetic gypsum from a power plant that fires Eastern bituminous coal. The power plant has a single-loop, open spray tower limestone forced oxidation FGD system, with the forced oxidation conducted in the reaction tank integral with the FGD absorber. The FGD system has gypsum fines blow down as part of the dewatering step. The power plant is equipped with a selective catalytic reduction (SCR) system for NOX emissions control, and the SCR was in service during the time period the gypsum tested was produced. Also, as mentioned above, Degussa additive TMT-15 was being added to the FGD system when this gypsum was produced. The results of the Task 6 stack testing, as measured by the Ontario Hydro method, detected that an average of 55% of the incoming mercury was emitted during wallboard production. These losses were distributed as about 4% across the dryer mill, 6% across the board dryer kiln, and 45% across the kettle calciner. Emissions were similar to what Task 5 results showed on a percentage basis, but about 30% lower on a mass basis. The same power plant FGD system produced the synthetic gypsum used in Task 5 (with no use of TMT-15) and in Task 6 (with TMT-15 added to the FGD system). The lower emissions on a mass basis appeared

  2. Analysis of the interaction of phytoestrogens and synthetic chemicals: An in vitro/in vivo comparison

    SciTech Connect (OSTI)

    Charles, Grantley D. [Toxicology and Environmental Research and Consulting, Dow Chemical Company, Midland, MI 48674 (United States)]. E-mail: charles_grantley@allergan.com; Gennings, Chris [Department of Biostatistics, Virginia Commonwealth University, Richmond, VA 23298 (United States); Tornesi, Belen [Toxicology and Environmental Research and Consulting, Dow Chemical Company, Midland, MI 48674 (United States); Kan, H. Lynn [Toxicology and Environmental Research and Consulting, Dow Chemical Company, Midland, MI 48674 (United States); Zacharewski, Timothy R. [Department of Biochemistry and National Food Safety and Toxicology Center, Michigan State University, East Lansing, MI 48824 (United States); Bhaskar Gollapudi, B. [Toxicology and Environmental Research and Consulting, Dow Chemical Company, Midland, MI 48674 (United States); Carney, Edward W. [Toxicology and Environmental Research and Consulting, Dow Chemical Company, Midland, MI 48674 (United States)

    2007-02-01T23:59:59.000Z

    In the evaluation of chemical mixture toxicity, it is desirable to develop an evaluation paradigm which incorporates some critical attributes of real world exposures, particularly low dose levels, larger numbers of chemicals, and chemicals from synthetic and natural sources. This study evaluated the impact of low level exposure to a mixture of six synthetic chemicals (SC) under conditions of co-exposure to various levels of plant-derived phytoestrogen (PE) compounds. Estrogenic activity was evaluated using an in vitro human estrogen receptor (ER) transcriptional activation assay and an in vivo immature rat uterotrophic assay. Initially, dose-response curves were characterized for each of the six SCs (methoxyclor, o,p-DDT, octylphenol, bisphenol A, {beta}-hexachlorocyclohexane, 2,3-bis(4-hydroxyphenyl)-propionitrile) in each of the assays. The six SCs were then combined at equipotent ratios and tested at 5-6 dose levels spanning from very low, sub-threshold levels, to a dose in which every chemical in the mixture was at its individual estrogenic response threshold. The SC mixtures also were tested in the absence or presence of 5-6 different levels of PEs, for a total of 36 (in vitro) or 25 (in vivo) treatment groups. Both in vitro and in vivo, low concentrations of the SC mixture failed to increase estrogenic responses relative to those induced by PEs alone. However, significant increases in response occurred when each chemical in the SC mixture was near or above its individual response threshold. In vitro, interactions between high-doses of SCs and PEs were greater than additive, whereas mixtures of SCs in the absence of PEs interacted in a less than additive fashion. In vivo, the SC and PE mixture responses were consistent with additivity. These data illustrate a novel approach for incorporating key attributes of real world exposures in chemical mixture toxicity assessments, and suggest that chemical mixture toxicity is likely to be of concern only when the mixture components are near or above their individual response thresholds. However, these data suggest that extrapolation from in vitro assays to in vivo mixture effects should be approached with caution.

  3. Mortality study of employees at a synthetic rubber manufacturing plant

    SciTech Connect (OSTI)

    Holmes, T.M.; Buffler, P.A.; Holguin, A.H.; Hsi, B.P.

    1986-01-01T23:59:59.000Z

    A mortality follow-up study was conducted of workers employed at a synthetic rubber manufacturing plant in Baton Rouge, Louisiana. Interest in the potential health effects of exposure to methyl chloride, one of the substances used in the manufacturing process, provided the impetus for this study. The study cohort consisted of 852 male process workers who had worked at least 1 month during the period from startup of operations in 1943 through December 31, 1978. Mortality from all causes was lower than expected when compared with the U.S. male population. No excess mortality from any specific cause of death was found in the study population after analysis by level and duration of exposure.

  4. Sampling and analysis of butadiene at a synthetic rubber plant

    SciTech Connect (OSTI)

    Goodrich, J.D.; DeWees, W.G.; Segall, R.R.

    1989-01-01T23:59:59.000Z

    Butadiene emission samples were collected from the process vent stream of a plant manufacturing synthetic rubber from styrene and butadiene. On-site analysis of samples was performed using a gas chromatograph equipped with a flame ionization detector. The precision of butadiene concentrations was determined from simultaneous samples collected at a nominal sampling rate of 0.050 L/min, rather than at the recommended sampling rate of 0.5 L/min. In addition, simultaneous samples were collected at both 0.20 L/min and 0.050 L/min and analyzed to determine if the mean values or precisions of the measured concentrations were influenced by the sampling rate. Acceptable precision was observed at both sampling rates, and the mean values and precisions of butadiene levels determined were statistically equal for simultaneous samples.

  5. Characterization of secondary collection system flows beneath synthetic composite liners

    SciTech Connect (OSTI)

    Groenleer, M.E. [Wenck Associates, Inc., Grand Rapids, MI (United States)

    1995-12-31T23:59:59.000Z

    Secondary liner systems for landfills are becoming more common. Subtitle D may be construed to require secondary liners to meet monitorability requirements for new units. Michigan requires secondary liners in many situations, most commonly at previously contaminated sites to allow for differential monitoring of the new cell(s). Much work has been done in characterizing the flow of liquids through FML/clay composite liners but less is known about flows through FML/geosynthetic clay liner (GCL) composite liners or through isolated FMLs. Flow and chemical data are examined from two Michigan landfills employing different configurations of all synthetic primary and secondary liners. The data is examined for apparent trends. Conclusions are drawn about the application of generic action flow rates as a regulatory standard to these systems and the chemical characteristics of the liquids in secondary systems. Calculations are presented to achieve a realistic action leakage rate for these systems.

  6. Observation of Dirac Monopoles in a Synthetic Magnetic Field

    E-Print Network [OSTI]

    Ray, M W; Kandel, S; Möttönen, M; Hall, D S

    2014-01-01T23:59:59.000Z

    Magnetic monopoles --- particles that behave as isolated north or south magnetic poles --- have been the subject of speculation since the first detailed observations of magnetism several hundred years ago. Numerous theoretical investigations and hitherto unsuccessful experimental searches have followed Dirac's 1931 development of a theory of monopoles consistent with both quantum mechanics and the gauge invariance of the electromagnetic field. The existence of even a single Dirac magnetic monopole would have far-reaching physical consequences, most famously explaining the quantization of electric charge. Although analogues of magnetic monopoles have been found in exotic spin-ices and other systems, there has been no direct experimental observation of Dirac monopoles within a medium described by a quantum field, such as superfluid helium-3. Here we demonstrate the controlled creation of Dirac monopoles in the synthetic magnetic field produced by a spinor Bose-Einstein condensate. Monopoles are identified, in b...

  7. Giant g-factors of natural impurities in synthetic quartz

    SciTech Connect (OSTI)

    Goryachev, Maxim; Farr, Warrick G.; Tobar, Michael E., E-mail: michael.tobar@uwa.edu.au [ARC Centre of Excellence for Engineered Quantum Systems, University of Western Australia, 35 Stirling Highway, Crawley WA 6009 (Australia)

    2013-12-23T23:59:59.000Z

    We report the observation of g-factors of natural paramagnetic impurities in a pure synthetic quartz crystal at milli-Kelvin temperatures. Measurements are made by performing spectroscopy using multiple high-Q whispering gallery modes sustained in the crystal. Extreme sensitivity of the method at low temperatures allows the determination of natural residual impurities introduced during the crystal growth. We observe g-factors that significantly differ from integer multiples of the electron g-factor in vacuum, and with values of up to 7.6, which reveals much stronger coupling between impurities and the crystal lattice than in previous studies. Both substitutional and interstitial ions are proposed as candidates for the observed interactions.

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

    SciTech Connect (OSTI)

    Savage, Bill

    2013-11-30T23:59:59.000Z

    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.

  9. Final Report for "User Friendly Steering and Diagnostics for Modleing Heavy Ion Fusion Accelerators"

    SciTech Connect (OSTI)

    Peter Stoltz, Douglas R Dechow, Scott Kruger, Brian Granger

    2007-10-15T23:59:59.000Z

    The goal accomplished in thisproject was to improve the Synergia code by improving the integration of the Impact space charge algorithms into Synergia and improving the graphical user interface for analyzing results. We accomplished five tasks along these lines: (i) a refactoring of the Impact space charge algorithm to make it more accessible by other codes, (ii) development of the Forthon interface between Impact and Python, (iii) implementation of a Python-MPI interface to allow parallel space charge calculation, (iv) a new user-friendly interface for analyzing Synergia results, and (v) a toolkit for doing parallel analysis of Synergia results.

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

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you sure you want toworldPowerHome| Department of Energy FindFish-Friendly

  11. BLIND TESTS OF REFRACTION MICROTREMOR ANALYSIS AGAINST SYNTHETICS AND BOREHOLE DATA

    E-Print Network [OSTI]

    BLIND TESTS OF REFRACTION MICROTREMOR ANALYSIS AGAINST SYNTHETICS AND BOREHOLE DATA Karalyn Heath1 the synthetics in a blind test, following standard ReMi procedures. Between the models and the blind results, we% for Z0. For the second application, we completed blind analyses of refraction microtremor data taken

  12. Image-Based Rendering for Non-Diffuse Synthetic Scenes Dani Lischinski Ari Rappoport

    E-Print Network [OSTI]

    Rappoport, Ari

    Image-Based Rendering for Non-Diffuse Synthetic Scenes Dani Lischinski Ari Rappoport The Hebrew University Abstract. Most current image-based rendering methods operate under the assumption that all with image-based rendering of non-diffuse synthetic scenes. We introduce a new family of image-based scene

  13. Feasibility study for mapping the polar ice bottom topography using interferometric synthetic-aperture

    E-Print Network [OSTI]

    Kansas, University of

    interferometric synthetic-aperture radar processing for basal surface topography mapping of the thickest GreenlandFeasibility study for mapping the polar ice bottom topography using interferometric synthetic sheets. Ice bottom topography drives ice dynamics, which affects the mass balance. Accurate information

  14. Reduced thermal resistance of the silicon-synthetic diamond composite substrates at elevated temperatures

    E-Print Network [OSTI]

    /Si sub- strates, depends on the polycrystalline-diamond grain size, diamond layer thicknessReduced thermal resistance of the silicon-synthetic diamond composite substrates at elevated of synthetic diamond-silicon composite substrates. Although composite substrates are more thermally resistive

  15. 3-D airborne ultrasound synthetic aperture imaging based on capacitive micromachined ultrasonic transducers

    E-Print Network [OSTI]

    Khuri-Yakub, Butrus T. "Pierre"

    3-D airborne ultrasound synthetic aperture imaging based on capacitive micromachined ultrasonic was implemented by mechanical scanning a co-located transmitter and receiver using the classic synthetic aperture, silicone rubber, and foam plastics, in an attempt to overcome bad mechanical impedance matching between

  16. Nanomolding Based Fabrication of Synthetic Gecko Foot-Hairs Metin Sitti and Ronald S. Fearing

    E-Print Network [OSTI]

    Fearing, Ron

    Nanomolding Based Fabrication of Synthetic Gecko Foot-Hairs Metin Sitti and Ronald S. Fearing Dept- This paper proposes two different nanomolding methods to fabricate synthetic gecko foot-hair nanostructures a nano-pore membrane as a template. These templates are molded with silicone rubber, polyamide

  17. The use of flexible synthetic rubbers for casts of complex fossils from natural moulds

    E-Print Network [OSTI]

    Benton, Michael

    The use of flexible synthetic rubbers for casts of complex fossils from natural moulds M. J. BENTON (Dugdale DD118) synthetic rubbers make excellent casting materials for the production of high). They described the methods of use and results from such commercially available silicone rubbers as Silastic 9161

  18. THREE-DIMENSIONAL LONGWAVE INFRARED (LWIR) SYNTHETIC IMAGE GENERATION INCORPORATING ANGULAR EMJSSWITY EFFECTS USING RAY-

    E-Print Network [OSTI]

    Salvaggio, Carl

    . These routines require a sequence of images to evaluate tracking algorithms. The evaluation of sensor performanceTHREE-DIMENSIONAL LONGWAVE INFRARED (LWIR) SYNTHETIC IMAGE GENERATION INCORPORATING ANGULAR Memorial Drive Rochester, New York 14623-0887 ABSTRAO A technique for longwave infrared (LWIR) synthetic

  19. Mitigation of resource competition in synthetic genetic circuits through feedback regulation

    E-Print Network [OSTI]

    Del Vecchio, Domitilla

    Mitigation of resource competition in synthetic genetic circuits through feedback regulation expression. In particular, we analyze and compare the ability of several inhibitory feedback regulation that arise in synthetic biology. Questions of how feedback regulation may be employed by biochemical systems

  20. Monitoring of SAGD Process: Seismic Interpretation of Ray+Born Synthetic 4D Data

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Monitoring of SAGD Process: Seismic Interpretation of Ray+Born Synthetic 4D Data C. Joseph1, G ­ Monitoring of SAGD Process: Seismic Interpretation of Ray+Born Synthetic 4D Data ­ The objective of this study is to evaluate which production information can be deduced from a 4D seismic survey during

  1. Fate of Mercury in Synthetic Gypsum Used for Wallboard Production

    SciTech Connect (OSTI)

    Jessica Marshall Sanderson

    2006-06-01T23:59:59.000Z

    This report presents and discusses results from Task 5 of the study ''Fate of Mercury in Synthetic Gypsum Used for Wallboard Production,'' performed at a full-scale commercial wallboard plant. Synthetic gypsum produced by wet flue gas desulfurization (FGD) systems on coal-fired power plants is commonly used in the manufacture of wallboard. The FGD process is used to control the sulfur dioxide emissions which would result in acid rain if not controlled. This practice has long benefited the environment by recycling the FGD gypsum byproduct, which is becoming available in increasing quantities, decreasing the need to landfill this material, and increasing the sustainable design of the wallboard product. However, new concerns have arisen as recent mercury control strategies developed for power plants involve the capture of mercury in FGD systems. The objective of this study is to determine whether any mercury is released into the atmosphere when the synthetic gypsum material is used as a feedstock for wallboard production. The project is being co-funded by the U.S. DOE National Energy Technology Laboratory (Cooperative Agreement DE-FC26-04NT42080), USG Corporation, and EPRI. USG Corporation is the prime contractor, and URS Group is a subcontractor. The project scope includes five discrete tasks, each conducted at various USG wallboard plants using synthetic gypsum from different FGD systems. The five tasks were to include (1) a baseline test, then variations representing differing power plant (2) emissions control configurations, (3) treatment of fine gypsum particles, (4) coal types, and (5) FGD reagent types. However, Task 5, which was to evaluate gypsum produced from an alternate FGD reagent, could not be conducted as planned. Instead, Task 5 was conducted at conditions similar to a previous task, Task 3, although with gypsum from an alternate FGD system. In this project, process stacks in the wallboard plant have been sampled using the Ontario Hydro method. The stack locations sampled for each task include a dryer for the wet gypsum as it enters the plant and a gypsum calciner. The stack of the dryer for the wet wallboard product was also tested as part of this task, and was tested as part of Tasks 1 and 4. Also at each site, in-stream process samples were collected and analyzed for mercury concentration before and after each significant step in wallboard production. The Ontario Hydro results, process sample mercury concentration data, and process data were used to construct mercury mass balances across the wallboard plants. Task 5 was conducted at a wallboard plant processing synthetic gypsum from a power plant that fires Eastern bituminous coal. The power plant is equipped with a selective catalytic reduction (SCR) system for NOX emissions control, but the SCR was bypassed during the time period the gypsum tested was produced. The power plant has a single-loop, open spray tower, limestone reagent FGD system, with forced oxidation conducted in a reaction tank integral with the FGD absorber. The FGD system has gypsum fines blow down as part of the dewatering step. Gypsum fines blow down is believed to be an important variable that impacts the amount of mercury in the gypsum byproduct and possibly its stability during the wallboard process. The results of the Task 5 stack testing, as measured by the Ontario Hydro method, detected that an average of 51% of the incoming mercury in the FGD gypsum was emitted during wallboard production. These losses were distributed as 2% or less each across the wet gypsum dryer and product wallboard dryer, and about 50% across the gypsum calciner. Emissions were similar to what Task 3 results showed, on both a percentage and a mass basis, for gypsum produced by a power plant firing bituminous coal and also having gypsum fines blow down as part of the FGD dewatering scheme. As was seen in the Task 1 through 4 results, most of the mercury detected in the stack testing on the wet gypsum dryer and kettle calciner was in the form of elemental mercury. In the wallboard dryer kiln, a more signific

  2. Using Friends as Sensors to Detect Global-Scale Contagious Outbreaks

    E-Print Network [OSTI]

    Garcia-Herranz, Manuel; Cebrian, Manuel; Christakis, Nicholas A; Fowler, James H

    2012-01-01T23:59:59.000Z

    Recent research has focused on the monitoring of global-scale online data for improved detection of epidemics, mood patterns, movements in the stock market, political revolutions, box-office revenues, consumer behaviour and many other important phenomena. However, privacy considerations and the sheer scale of data available online are quickly making global monitoring infeasible, and existing methods do not take full advantage of local network structure to identify key nodes for monitoring. Here, we develop a model of the contagious spread of information in a global-scale, publicly-articulated social network and show that a simple method can yield not just early detection, but advance warning of contagious outbreaks. In this method, we randomly choose a small fraction of nodes in the network and then we randomly choose a "friend" of each node to include in a group for local monitoring. Using six months of data from most of the full Twittersphere, we show that this friend group is more central in the network an...

  3. Arbib, Fagg and Grafton: Synthetic PET Imaging for Grasping May 20, 2001 1 Arbib, M.A., Fagg, A.H., and Grafton, S.T., to appear, Synthetic PET Imaging for Grasping: From

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Arbib, Fagg and Grafton: Synthetic PET Imaging for Grasping May 20, 2001 1 Arbib, M.A., Fagg, A.H., and Grafton, S.T., to appear, Synthetic PET Imaging for Grasping: From Primate Neurophysiology to Human, Eds.), Cambridge MA: The MIT Press. Synthetic PET Imaging for Grasping: From Primate Neurophysiology

  4. Thermodynamic assessment of the variation of the surface areas of two synthetic swelling clays during adsorption of water

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Thermodynamic assessment of the variation of the surface areas of two synthetic swelling clays; Synthetic smectite; Water; Adsorption; Surface area; Swelling clay; Interlayer space #12;1. Introduction Synthetic clays are very interesting materials, both for scientific research and for industrial applications

  5. Experimental Study on Shear Fatigue Behavior and Stiffness Performance of Warm Mix Asphalt by adding Synthetic Wax

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    by adding Synthetic Wax C. Petita , A. Milliena , F. Canestrarib , V. Pannunziob , A. Virgilib a Université.petit@unilim.fr , Phone : +33555934519 Abstract Synthetic waxes produced by standard and registered processes may be used. The present article serves to compare the mechanical performance of a WMA produced by adding synthetic wax

  6. Kinetics and thermodynamics of hydrotreating synthetic middle distillates

    SciTech Connect (OSTI)

    Fisher, I.P. (Petro-Canada R and D Dept., Sheridan Park, Ontario (Canada)); Wilson, M.F. (CANMET, Ottawa, Ontario (Canada))

    1987-04-01T23:59:59.000Z

    Middle distillates from the Tar Sands deposits in Alberta are an important component of diesel and jet fuels in the Canadian market. Commercial catalysts based on sulfided Ni-Mo and Ni-W are currently used to hydrogenate synthetic distillates to improve the cetane number and smoke point. In previous work {sup 13}C NMR was used to study the kinetics of overall hydrogenation of aromatics over sulfided Co-Mo, Ni-Mo and Ni-W catalysts. Arrhenius parameters were obtained for hydrogenation over sulfided Ni-W catalyst for a similar distillate feedstock. In the latter study, mass spectrometry was used to quantitate the three major aromatic hydrocarbon group types in the feed and products. In this study, liquid products from hydrotreating experiments with a hydrotreated distillate from delayed coking of Athabasca bitumen and sulfided Co-Mo and Ni-Mo catalysts have been analyzed by mass spectrometry. This completes a preliminary comparison of the kinetics of hydrogenation of alkylbenzenes, benzocycloparaffins and benzodicycloparaffins, the three major aromatic hydrocarbon types in these distillates.

  7. Conventional and synthetic aperature processing for airborne ground penetrating radar

    SciTech Connect (OSTI)

    Cameron, R.M. [Airborne Environmental Surveys, Santa Maria, CA (United States); Simkins, W.L.; Brown, R.D. [MSB Technologies, Inc., Rome, NY (United States)

    1994-12-31T23:59:59.000Z

    For the past four years Airborne Environmental Surveys (AES), a Division of Era Aviation, Inc. has used unique and patented airborne Frequency-Modulated, Continuous Wave (FM-CW) radars and processes for detecting and mapping subsurface phenomena. Primary application has focused on the detection of man-made objects in landfills, hazardous waste sites (some of which contain unexploded ordinance), and subsurface plumes of refined free-floating hydrocarbons. Recently, MSB Technologies, Inc. (MSB) has developed a form of synthetic aperture radar processing (SAR), called GPSAR{trademark}, that is tailored especially for the AES radars. Used as an adjunct to more conventional airborne ground-penetrating radar data processing techniques, GPSAR takes advantage of the radars` coherent transmission and produces imagery that is better focused and more accurate in determining an object`s range and true depth. This paper describes the iterative stages of data processing and analysis used with the radars and shows the added advantages that GPSAR processing offers.

  8. Observation of Dirac Monopoles in a Synthetic Magnetic Field

    E-Print Network [OSTI]

    M. W. Ray; E. Ruokokoski; S. Kandel; M. Möttönen; D. S. Hall

    2014-08-13T23:59:59.000Z

    Magnetic monopoles --- particles that behave as isolated north or south magnetic poles --- have been the subject of speculation since the first detailed observations of magnetism several hundred years ago. Numerous theoretical investigations and hitherto unsuccessful experimental searches have followed Dirac's 1931 development of a theory of monopoles consistent with both quantum mechanics and the gauge invariance of the electromagnetic field. The existence of even a single Dirac magnetic monopole would have far-reaching physical consequences, most famously explaining the quantization of electric charge. Although analogues of magnetic monopoles have been found in exotic spin-ices and other systems, there has been no direct experimental observation of Dirac monopoles within a medium described by a quantum field, such as superfluid helium-3. Here we demonstrate the controlled creation of Dirac monopoles in the synthetic magnetic field produced by a spinor Bose-Einstein condensate. Monopoles are identified, in both experiments and matching numerical simulations, at the termini of vortex lines within the condensate. By directly imaging such a vortex line, the presence of a monopole may be discerned from the experimental data alone. These real-space images provide conclusive and long-awaited experimental evidence of the existence of Dirac monopoles. Our result provides an unprecedented opportunity to observe and manipulate these quantum-mechanical entities in a controlled environment.

  9. Synthetic aperture radar and interferometry development at Sandia National Laboratories

    SciTech Connect (OSTI)

    NONE

    1993-04-01T23:59:59.000Z

    Environmental monitoring, earth-resource mapping, and military systems require broad-area imaging at high resolutions. Many times the imagery must be acquired in inclement weather or during night as well as day. Synthetic aperture radar (SAR) provides such a capability. SAR systems take advantage of the long-range propagation characteristics of radar signals and the complex information processing capability of modern digital electronics to provide high resolution imagery. SAR complements photographic and other optical imaging capabilities because of the minimum constrains on time-of-day and atmospheric conditions and because of the unique responses of terrain and cultural targets to radar frequencies. Interferometry is a method for generating a three-dimensional image of terrain. The height projection is obtained by acquiring two SAR images from two slightly differing locations. It is different from the common method of stereoscopic imaging for topography. The latter relies on differing geometric projections for triangulation to define the surface geometry whereas interferometry relies on differences in radar propagation times between the two SAR locations. This paper presents the capabilities of SAR, explains how SAR works, describes a few SAR applications, provides an overview of SAR development at Sandia, and briefly describes the motion compensation subsystem.

  10. A constellation of CubeSats with synthetic tracking cameras to search for 90% of potentially hazardous near-Earth objects

    E-Print Network [OSTI]

    Shao, Michael; Spangelo, Sara; Werne, Thomas

    2015-01-01T23:59:59.000Z

    Congress mandated NASA to find 90% of near-Earth objects (NEO) with sizes over 140m that are potentially hazardous to the Earth by the year 2020. After an in-depth look at a number of alternative approaches, the National Research Council (NRC) concluded in 2010 that this goal was nearly impossible to reach by 2020. In this paper, we present a new space mission concept that is capable of addressing the challenges of this Congressional mandate. The proposed mission concept relies on two emerging technologies: the technique of synthetic tracking to detect NEOs and the new generation of small and capable interplanetary spacecraft. Synthetic tracking is a technique that de-streaks asteroid images by taking multiple fast exposures. With synthetic tracking, a 600 sec observation with a 10cm telescope, which can fit in a CubeSat, can detect a 20.5 mag moving object without losing sensitivity from streaking. Our primary science objective is to detect, track, catalogue, and characterize 90% of NEAs of H=22 mag (diamete...

  11. Target Detection in SAR Images Based on a Level Set Approach

    SciTech Connect (OSTI)

    Marques, Regis C.P.; Medeiros, Fatima N.S.; Ushizima, Daniela M.

    2008-09-01T23:59:59.000Z

    This paper introduces a new framework for point target detection in synthetic aperture radar (SAR) images. We focus on the task of locating reflective small regions using alevel set based algorithm. Unlike most of the approaches in image segmentation, we address an algorithm which incorporates speckle statistics instead of empirical parameters and also discards speckle filtering. The curve evolves according to speckle statistics, initially propagating with a maximum upward velocity in homogeneous areas. Our approach is validated by a series of tests on synthetic and real SAR images and compared with three other segmentation algorithms, demonstrating that it configures a novel and efficient method for target detection purpose.

  12. Winter 2008 Profile page ProfileProfileFor Alumni, Parents, and Friends of the University of Minnesota, MorrisFor Alumni, Parents, and Friends of the University of Minnesota, Morris

    E-Print Network [OSTI]

    Amin, S. Massoud

    Winter 2008 Profile page ProfileProfileFor Alumni, Parents, and Friends of the University 2, Winter 2008 Stories of UMMers and creatures great and small #12;Winter 2008 Profile page 2 in the nation. #12;Winter 2008 Profile page My secret is out--it's clear from the pictures that I have a soft

  13. Fall 2008 Profile page ProfileProfileFor Alumni, Parents, and Friends of the University of Minnesota, MorrisFor Alumni, Parents, and Friends of the University of Minnesota, Morris

    E-Print Network [OSTI]

    Amin, S. Massoud

    Fall 2008 Profile page ProfileProfileFor Alumni, Parents, and Friends of the University the students. The Annual Honor Roll of Donors: It's all about the students. #12;Fall 2008 Profile page 2 Scrapbook #12;Fall 2008 Profile page I write these words at the end of a long presidential campaign

  14. Abstract--Environmentally friendly technologies such as photovoltaics and fuel cells are DC sources. In the current power

    E-Print Network [OSTI]

    Tolbert, Leon M.

    Abstract--Environmentally friendly technologies such as photovoltaics and fuel cells are DC sources in pollution [1]. The most well-known green technologies include photovoltaics and wind turbines. Although fuel, fuel cells and photovoltaics, produce direct current (DC). Currently, power system infrastructures

  15. Optimization-based Design of Plant-Friendly Input Signals for Data-Centric Estimation and Control

    E-Print Network [OSTI]

    Mittelmann, Hans D.

    and to the nonlinear, highly interactive distillation column model developed by Weischedel and McAvoy (1980-centric multivariable control algorithm) is demonstrated for the distillation column case study. 1To whom allPaper 242k Optimization-based Design of Plant-Friendly Input Signals for Data-Centric Estimation

  16. Optimization-based Design of Plant-Friendly Input Signals for Model-on-Demand Estimation and Model Predictive Control

    E-Print Network [OSTI]

    Mittelmann, Hans D.

    is shown by applying it to a case study involving composition control of a binary distillation column. I is demonstrated in a binary high-purity distillation column case study by Weischedel and McAvoy [7], a demandingOptimization-based Design of Plant-Friendly Input Signals for Model-on-Demand Estimation and Model

  17. Carbon Sequestration in Turfgrass: An Eco-Friendly Benefit of Your Lawn Dale Bremer, Kansas State University

    E-Print Network [OSTI]

    1 Carbon Sequestration in Turfgrass: An Eco-Friendly Benefit of Your Lawn Dale Bremer, Kansas State read this have no doubt heard of carbon sequestration and may even be well versed on the topic. Others't the slightest clue about carbon sequestration and others may not even care. After all, what does carbon

  18. Make us your home page | Bookmark Us | Refer to a Friend Home Men Women Children Diseases Drugs Symptoms Treatm

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    Make us your home page | Bookmark Us | Refer to a Friend Home Men Women Children Diseases Drugs liquids moving through the oesophagus. It then transmits data to a wireless sensor worn around the neck and that the transmitter can send the results through human tissue. The sensor is designed to detect stomach acid, gas

  19. LifeLinkA link between donors, volunteers, staff & friends of the Stanford Blood Center SUMMER 2006

    E-Print Network [OSTI]

    Ford, James

    LifeLinkA link between donors, volunteers, staff & friends of the Stanford Blood Center SUMMER 2006 In this issue of Life Link, we've included information about summer promotions, our Give blood for life! donor Blood Center depends on generous blood donors, like you, every day to provide life-saving blood products

  20. IEEE Transactions on Power Systems, Vol. 10, No. 4, November 1995 A User-FriendlySimulation Program for Teaching

    E-Print Network [OSTI]

    Gross, George

    IEEE Transactions on Power Systems, Vol. 10, No. 4, November 1995 A User-FriendlySimulation Program for Teaching 1725 Power System Operatioins Thomas J. Overbye Peter W. Sauer CarolineM.'Mar;cinzik George Gross program for teaching power system operations and control. The motivation for the development

  1. The Total Solar Eclipse of August 11, 1999 To my dear friends in Europe August 10, 1999

    E-Print Network [OSTI]

    Waldvogel, Jörg

    The Total Solar Eclipse of August 11, 1999 To my dear friends in Europe August 10, 1999 I hear at the roadside North of a farm village called Ulm (about half-way between Strassburg and Rastatt). Many other), and everything was absolutely quiet. The solar corona appeared a few times, then it was covered again by moving

  2. Published on Africa EU (http://www.africa-eu-partnership.org) Home > News > Cameroon axes illegal logging > Printer-friendly

    E-Print Network [OSTI]

    Published on Africa EU (http://www.africa-eu-partnership.org) Home > News > Cameroon axes illegal logging > Printer-friendly Cameroon axes illegal logging 14/05/2010 Cameroon axes illegal logging Illegal and trade of illegal logging. The latest country to sign up to the programme is Cameroon, which completed

  3. Towards an Abstraction-Friendly Programming Model for High Productivity and High Performance Computing

    SciTech Connect (OSTI)

    Liao, C; Quinlan, D; Panas, T

    2009-10-06T23:59:59.000Z

    General purpose languages, such as C++, permit the construction of various high level abstractions to hide redundant, low level details and accelerate programming productivity. Example abstractions include functions, data structures, classes, templates and so on. However, the use of abstractions significantly impedes static code analyses and optimizations, including parallelization, applied to the abstractions complex implementations. As a result, there is a common perception that performance is inversely proportional to the level of abstraction. On the other hand, programming large scale, possibly heterogeneous high-performance computing systems is notoriously difficult and programmers are less likely to abandon the help from high level abstractions when solving real-world, complex problems. Therefore, the need for programming models balancing both programming productivity and execution performance has reached a new level of criticality. We are exploring a novel abstraction-friendly programming model in order to support high productivity and high performance computing. We believe that standard or domain-specific semantics associated with high level abstractions can be exploited to aid compiler analyses and optimizations, thus helping achieving high performance without losing high productivity. We encode representative abstractions and their useful semantics into an abstraction specification file. In the meantime, an accessible, source-to-source compiler infrastructure (the ROSE compiler) is used to facilitate recognizing high level abstractions and utilizing their semantics for more optimization opportunities. Our initial work has shown that recognizing abstractions and knowing their semantics within a compiler can dramatically extend the applicability of existing optimizations, including automatic parallelization. Moreover, a new set of optimizations have become possible within an abstraction-friendly and semantics-aware programming model. In the future, we will apply our programming model to more large scale applications. In particular, we plan to classify and formalize more high level abstractions and semantics which are relevant to high performance computing. We will also investigate better ways to allow language designers, library developers and programmers to communicate abstraction and semantics information with each other.

  4. Synthetic fuels from peat by the IGT PEATGAS Process

    SciTech Connect (OSTI)

    Punwani, D.V.; Rader, A.M.; Kopstein, M.J.

    1980-01-01T23:59:59.000Z

    Peat gasification research at the Institute of Gas Technology (IGT) began in 1974 under the sponsorship of the Minnesota Gas company (Minnegasco). The preliminary evaluation conducted under that program showed encouraging results and led to an expanded program under the joint sponsorship of the US Department of Energy (DOE) and Minnegasco. The current program is also funded by the Gas Research Institute (GRI) and the Northern Natural Gas Company (NNGC). Since 1976 IGT has completed tests with peats from Minnesota, North Carolina, and Maine in laboratory-scale equipment and process development units (PDU's). Tests in the hydrogasification PDU (which represents a scale-up of 250 times the laboratory-scale equipment) confirm the laboratory results. Preparations are being made for pilot-plant scale gasification tests in a modified coal gasification pilot plant (HYGAS) in Chicago. Based on the experimental results obtained in the laboratory-scale tests, IGT conceived a two-stage gasifier (named PEATGAS) for converting peat to synthetic fuels. The PEATGAS Process can be used for making medium- or high-Btu gas as well as liquid fuels. A complete process design and cost estimates have been prepared for a plant producing 250 million cubic feet of SNG per day from Minnesota peat containing 50% moisture. These estimates show that the conversion of peat (containing 50% moisture) is competitive with other alternative methods of SNG production. This paper discusses the important and significant gasification characteristics of the peats evaluated. The paper also describes the use of the PEATGAS Process for production of medium-Btu gas, methanol, and gasoline.

  5. Excerpted from: R. Pitt, M. Lilburn. S.R. Durrans, S. Burian, S. Nix, J. Vorhees, and J. Martinson (I had a lot of help from my friends). Guidance Manual for Integrated Wet Weather Flow (WWF) Collection and Treatment Systems

    E-Print Network [OSTI]

    Pitt, Robert E.

    . Martinson (I had a lot of help from my friends). Guidance Manual for Integrated Wet Weather Flow (WWF

  6. ash-based synthetic aggregates: Topics by E-print Network

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

    state particle size distributions in a 3-d synthetic turbulent flow. We show how a fractal-like structure, typical of aggregates in natural systems, can be incorporated in an...

  7. Joint anisotropy characterization and image formation in wide-angle synthetic aperture radar

    E-Print Network [OSTI]

    Varshney, Kush R. (Kush Raj)

    2006-01-01T23:59:59.000Z

    Imagery formed from wide-angle synthetic aperture radar (SAR) measurements has fine cross-range resolution in principle. However, conventional SAR image formation techniques assume isotropic scattering, which is not valid ...

  8. Synthetic creation of a chemotactic system via utilization of magnetically actuated microrobotic walkers

    E-Print Network [OSTI]

    Steimel, Joshua Paul

    2012-01-01T23:59:59.000Z

    Chemotaxis is a fundamental biological process that plays an important role in disease, reproduction, and most biological functions. Here, we present a radically novel method to create the first synthetic chemotactic system ...

  9. ForPeerReview From vegetable oils to polyurethanes: synthetic routes to

    E-Print Network [OSTI]

    Boyer, Edmond

    ForPeerReview Only From vegetable oils to polyurethanes: synthetic routes to polyols and main Auvergne, Remi; ICGM CAILLOL, Sylvain; ICGM, IAM Boutevin, Bernard; ICGM Keywords: vegetable oils, biobased polyols, polyurethanes, epoxidized vegetable oils, commercial polyols URL: http

  10. Focused synthetic aperture radar processing of ice-sounder data collected over the Greenland ice sheet

    E-Print Network [OSTI]

    Legarsky, J.; Gogineni, Sivaprasad; Akins, T. L.

    2001-10-01T23:59:59.000Z

    We developed a synthetic aperture radar (SAR) processing algorithm for airborne/spaceborne ice-sounding radar systems and applied it to data collected in Greenland. By using focused SAR (phase-corrected coherent averaging), we improved along...

  11. A platform for rapid prototyping of synthetic gene networks in mammalian cells

    E-Print Network [OSTI]

    Wroblewska, Liliana

    Mammalian synthetic biology may provide novel therapeutic strategies, help decipher new paths for drug discovery and facilitate synthesis of valuable molecules. Yet, our capacity to genetically program cells is currently ...

  12. Strategies for designing, testing and demonstrating safety : what synthetic biology can learn from retrospective cases

    E-Print Network [OSTI]

    Yeddanapudi, Neelima, 1976-

    2009-01-01T23:59:59.000Z

    Synthetic biology is an emerging technology field within the realm of genetic engineering, differing from traditional genetic engineering in that it focuses on the modularization of genetic parts and the creation of de ...

  13. Volumetric analysis of fish swimming hydrodynamics using synthetic aperture particle image velocimetry

    E-Print Network [OSTI]

    Mendelson, Leah Rose

    2013-01-01T23:59:59.000Z

    Abstract This thesis details the implementation of a three-dimensional PIV system to study the hydrodynamics of freely swimming Giant Danio (Danio aequipinnatus). Volumetric particle fields are reconstructed using synthetic ...

  14. Identification of conserved chromatin-regulatory complexes among the class B synthetic multivulva proteins

    E-Print Network [OSTI]

    Harrison, Melissa M

    2006-01-01T23:59:59.000Z

    The class A, B, and C synthetic Multivulva (synMuv) genes act redundantly to antagonize Ras-mediated vulval induction in C. elegans. Many of these genes encode proteins that are likely to function in transcriptional ...

  15. Differential Attraction of Heliothis subflexa Males to Synthetic Pheromone Lures in Eastern US

    E-Print Network [OSTI]

    Differential Attraction of Heliothis subflexa Males to Synthetic Pheromone Lures in Eastern US in Eastern US showed that when the acetates were omitted from a 7-component blend in rubber septa, fewer

  16. Ribozyme-based insulator parts buffer synthetic circuits from genetic context

    E-Print Network [OSTI]

    Lou, Chunbo

    Synthetic genetic programs are built from circuits that integrate sensors and implement temporal control of gene expression. Transcriptional circuits are layered by using promoters to carry the signal between circuits. In ...

  17. High-field remanence properties of synthetic and natural submicrometre haematites and goethites: significance

    E-Print Network [OSTI]

    High-field remanence properties of synthetic and natural submicrometre haematites and goethites September 2004 Editor: V. Courtillot Abstract Haematite and goethite are significant magnetic components both of marine and terrestrial sediments. Variable magnetic behaviour in haematite and goethite has

  18. Landauer in the age of synthetic biology: energy consumption and information processing in biochemical networks

    E-Print Network [OSTI]

    Mehta, Pankaj; Schwab, David J

    2015-01-01T23:59:59.000Z

    A central goal of synthetic biology is to design sophisticated synthetic cellular circuits that can perform complex computations and information processing tasks in response to specific inputs. The tremendous advances in our ability to understand and manipulate cellular information processing networks raises several fundamental physics questions: How do the molecular components of cellular circuits exploit energy consumption to improve information processing? Can one utilize ideas from thermodynamics to improve the design of synthetic cellular circuits and modules? Here, we summarize recent theoretical work addressing these questions. Energy consumption in cellular circuits serves five basic purposes: (1) increasing specificity, (2) manipulating dynamics, (3) reducing variability, (4) amplifying signal, and (5) erasing memory. We demonstrate these ideas using several simple examples and discuss the implications of these theoretical ideas for the emerging field of synthetic biology. We conclude by discussing h...

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

    SciTech Connect (OSTI)

    None

    1981-08-07T23:59:59.000Z

    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. Dynamic compression of synthetic diamond windows (final report for LDRD project 93531).

    SciTech Connect (OSTI)

    Dolan, Daniel H.,

    2008-09-01T23:59:59.000Z

    Diamond is an attractive dynamic compression window for many reasons: high elastic limit,large mechanical impedance, and broad transparency range. Natural diamonds, however, aretoo expensive to be used in destructive experiments. Chemical vapor deposition techniquesare now able to produce large single-crystal windows, opening up many potential dynamiccompression applications. This project studied the behavior of synthetic diamond undershock wave compression. The results suggest that synthetic diamond could be a usefulwindow in this field, though complete characterization proved elusive.3

  1. XAFS of Synthetic Iron(III)-Arsenate Co-Precipitates and Uranium Mill Neutralized Raffinate

    SciTech Connect (OSTI)

    Chen, N. [Canadian Light Source, University of Saskatchewan, Saskatoon, SK S7N 0X4 (Canada); Department of Geological Sciences, University of Saskatchewan, Saskatoon, SK (Canada); Jiang, D. T. [Canadian Light Source, University of Saskatchewan, Saskatoon, SK S7N 0X4 (Canada); COGEMA Resources Inc., Saskatoon, SK S7K 3X5 (Canada); Department of Physics, University of Guelph, Guelph, ON N1G 2W1 (Canada); Cutler, J. [Canadian Light Source, University of Saskatchewan, Saskatoon, SK S7N 0X4 (Canada); Demopoulos, G. P. [Department of Geological Sciences, University of Saskatchewan, Saskatoon, SK (Canada); Rowson, J. W. [Department of Materials Engineering, McGill University, Montreal, QC H3A 2B2 (Canada)

    2007-02-02T23:59:59.000Z

    XAFS studies were carried out for chemical speciation of arsenic species in uranium mill neutralized raffinate solids. To aid the structural characterization, synthetic iron(III)-arsenate co-precipitates were prepared to mimic the actual uranium mill tailings neutralization products. The principle components analysis method was used to validate the synthetic amorphous scorodite as a primary model compound for arsenate species in the raffinate samples under the specific precipitation conditions.

  2. 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

    2013-12-10T23:59:59.000Z

    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.

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

    DOE Patents [OSTI]

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

    1980-01-01T23:59:59.000Z

    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.

  4. Back to Email study shows how we treat friends and strangers How well you know the person who just sent you an email determines how long it takes you to reply.

    E-Print Network [OSTI]

    Kuzmanovic, Aleksandar

    Back to Email study shows how we treat friends and strangers How well you know the person who just interaction," the study found. Email study shows how we treat friends and strangers December 14, 2011 Thestar.com http://www.thestar.com/article/1101251--email-study-shows-how-we-treat-friends-and-strangers 1 of 1 #12;

  5. 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.

    2008-01-01T23:59:59.000Z

    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

  6. 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.

    2009-01-01T23:59:59.000Z

    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.

  7. The Benefits of Using Time-Frequency Analysis with Synthetic Aperture Focusing Technique

    SciTech Connect (OSTI)

    Albright, Austin P [ORNL; Clayton, Dwight A [ORNL

    2015-01-01T23:59:59.000Z

    Improvements in detection and resolution are always desired and needed. There are various instruments available for the inspection of concrete structures that can be used with confidence for detecting different defects. However, more often than not that confidence is heavily dependent on the experience of the operator rather than the clear, objective discernibility of the output of the instrument. The challenge of objective discernment is amplified when the concrete structures contain multiple layers of reinforcement, are of significant thickness, or both, such as concrete structures in nuclear power plants. We seek to improve and extend the usefulness of results produced using the synthetic aperture focusing technique (SAFT) on data collected from thick, complex concrete structures. A secondary goal is to improve existing SAFT results, with regards to repeatedly and objectively identifying defects and/or internal structure of concrete structures. Towards these goals, we are applying the time-frequency technique of wavelet packet decomposition and reconstruction using a mother wavelet that possesses the exact reconstruction property. However, instead of analyzing the coefficients of each decomposition node, we select and reconstruct specific nodes based on the frequency band it contains to produce a frequency band specific time-series representation. SAFT is then applied to these frequency specific reconstructions allowing SAFT to be used to visualize the reflectivity of a frequency band and that band s interaction with the contents of the concrete structure. We apply our technique to data sets collected using a commercial, ultrasonic linear array (MIRA) from two 1.5m x 2m x 25cm concrete test specimens. One specimen contains multiple layers of rebar. The other contains honeycomb, crack, and rebar bonding defect analogs. This approach opens up a multitude of possibilities for improved detection, readability, and overall improved objectivity. We will focus on improved defect/reinforcement isolation in thick and multilayered reinforcement environments. Additionally, the ability to empirically explore the possibility of a frequency-band-defect-type relationship or sensitivity becomes available.

  8. Synthetic Coal Slag Infiltration into Varying Refractory Materials

    SciTech Connect (OSTI)

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

    2012-10-01T23:59:59.000Z

    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.

  9. The stability and chemical modification of synthetically useful enzymes

    E-Print Network [OSTI]

    Smith, Gordon Lee

    1988-01-01T23:59:59.000Z

    to Dr. C. -H. Wong for his help, advice, guidance, support during the last two years. His innovative and hard working approach tow t advancement of chemistry knowledge will always remain with me. I th Drs. ott and Presley for serving on my committee...-Huey Wong Several examples of chemical modification of proteins and the resulting change in enzyme stability have been explored. Procedures are described here for the preparation of water-soluble immobilized enzymes of interest as catalysts in organic...

  10. Synthetizing hydrodynamic turbulence from noise: Formalism and applications to Plankton

    E-Print Network [OSTI]

    Bees, Martin

    are well reproduced, in particular the kinematic viscosity and energy spectrum. This practical approach, we assume that the energy is incorporated into the system in an individual wave number basis ¤ r¥ t¦ , ¤ r¥ t¦ t § 2 ¤ r¥ t¦©¨ Q 2 2 ¤ r¥ t¦¥ (1) where stands for the kinematic viscosity

  11. Three-dimensional subsurface imaging synthetic aperture radar (3D SISAR). Final report, September 22, 1993--September 22, 1996

    SciTech Connect (OSTI)

    NONE

    1998-12-31T23:59:59.000Z

    The concept developed under this applied research and development contract is a novel Ground Penetrating Radar system capable of remotely detecting, analyzing, and mapping buried waste containers from a mobile platform. From the testing and analysis performed to date, the 3-D SISAR has achieved the detection, accurate location, and three-dimensional imaging of buried test objects from a stand-off geometry. Tests have demonstrated that underground objects have been located to within 0.1 meter of their actual position. This work validates that the key elements of the approach are performing as anticipated. The stand-off synthetic aperture radar (SAR) methodology has been demonstrated to be a feasible approach as a remote sensing technique. The radar sensor constructed under this project is providing adequate quality data for imaging, and the matched filters have been demonstrated to provide enhanced target detection. Additional work is on-going in the area of underground propagation and scattering phenomena to provide enhanced depth performance, as the current imaging results have been limited to a few feet of depth underground.

  12. A novel biomimetic approach to the design of high-performance

    E-Print Network [OSTI]

    Ritchie, Robert

    , ceramic­metal composites are ideal candi- dates. In particular, ceramic-matrix composites (CMCsA novel biomimetic approach to the design of high-performance ceramic­metal composites Maximilien E of extending natural biological design to develop new synthetic ceramic­ metal composite materials is examined

  13. Synthetic drill-in fluid for gravel packing depleted sands and pressured shale

    SciTech Connect (OSTI)

    Ali, S.; Griffith, G. [Chevron USA Production Co., New Orleans, LA (United States); Jones, T.; Hinojosa, R. [Baker Hughes INTEQ, Houston, TX (United States); Smejkal, K. [Baker Oil Tools, Houston, TX (United States)

    1999-03-01T23:59:59.000Z

    Weighted synthetic- or oil-base drill-in fluids offer an excellent solution to the problem of reactive, pressured shale. However, some operators remain uneasy about drilling into a reservoir with an invert emulsion drill-in fluid. This apprehension is partly due to the possibility of creating emulsion blocks or changing the rock matrix wettability. Either of these conditions may reduce the crude`s mobility by restricting flow. This formation damage is avoided with water-base drill-in fluids, but the borehole stability problem remains an issue. A synthetic drill-in fluid`s ability to stabilize reactive shales is well documented. There remains a concern that once reactive shales are exposed to completion brine, the inhibition imparted by a synthetic fluid is lost. If lost, the shale particles could spall (slough) freely into the wellbore, plugging the screens and resulting in an incomplete gravel placement. Another concern is the effective displacement of the synthetic fluid to the completion brine without creating undesirable emulsions and damaging the integrity of the synthetic-fluid filter cake. The key appears to be selecting a spacer system that prevents formation of viscous emulsions at the interfaces and would not aggressively attack the wellbore filter cake. The paper describes laboratory evaluation, simulated core tests, test results, a field case history in the South Timbalier field offshore Louisiana, and lessons learned.

  14. Impact of Physical Environment of a Rehabilitation Facility on the Social Support and Interaction Patterns of Spinal Cord Injury Patients and their Family and Friends: A Naturalistic Inquiry

    E-Print Network [OSTI]

    Setya, Nidhi

    2014-04-29T23:59:59.000Z

    Previous research has demonstrated the positive effects of family and friends support on the overall well-being of Spinal Cord Injury (SCI) rehabilitation patients. This study explores the ways in which physical environment can provide for social...

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

    E-Print Network [OSTI]

    Powell, Brian A.

    2010-01-01T23:59:59.000Z

    of plutonium IV and V on goethite. Geochim. Cosmo. Acta,reduction on synthetic goethite (?-FeOOH) and hematite (?-Fe

  16. Unidentified growth factors for turkey poults maintained on a synthetic diet

    E-Print Network [OSTI]

    Salama, Fathi Mahmoud

    1956-01-01T23:59:59.000Z

    UNIDENTII'IED GROWTH 1'ACTORS FQR TURKEY PQULTS MAINTAINED QN A SYNTHETIC DIET A Thesis EATHI M. SALAMA Submitted to the Graduate School of the Agricultural and Mechanical College of Texas in partial fulfillment of the requirements... for the degree of MASTER QE SCIENCE January 1956 Major Subjects Biochemistry and Nutrition LIIRARY B 4 M CuLLEBE 8F tEXAB UNIDENTIFIED GROWTH FACTORS FOR TURKEY POULTS IEAINTAINED ON A SYNTHETIC DIET A Thesis FATHI M. SALAMA Approved as to style...

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

    DOE Patents [OSTI]

    Sederoff, Heike (Raleigh, NC); Huber, Steven C (Savoy, IL); Larabell, Carolyn A (Berkeley, CA)

    2011-10-18T23:59:59.000Z

    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.

  18. The German plan for synthetic fuel self-sufficiency, 1933-1942

    E-Print Network [OSTI]

    Tooley, Terry Hunt

    1978-01-01T23:59:59.000Z

    . Thus, even nitrogen could be produced and 2 added to other elements to form useful products synthetically. From 1909 to 1913, engineer Carl Bosch of Badische Analin- und Soda-Fabri k (BASF) teamed up with Haber to perfect the industrial process... for fixa- tion of nitrogen. By 1913, BASF had a small synthetic ammonia plant in production at Oppau, near Ludwigshafen, the headquarters of BASF. With the onset of World War I, Germany's supplies of Chilean nitrates were cut off, and the dem nd...

  19. Characterization of natural chabazite and 5A synthetic zeolites. Part II. Adsorption properties and porosity

    SciTech Connect (OSTI)

    Stakebake, J.L.; Fritz, J.

    1983-01-01T23:59:59.000Z

    Nitrogen adsorption isotherms were measured for four samples of chabazite, which were collected from different geographical locations, and for a Linde 5A synthetic zeolite. All isotherms were Type I and obeyed the Langmuir adsorption model. Surface areas and pore diameters were calculated from the adsorption data. The MP method was used to determine the pore volume distribution for each sample. The results indicated that all of the chabazite samples had nearly identical properties, and these properties were also very similar to those of the Linde 5A synthetic zeolite.

  20. Muffle furnace evaluation of FGD sludge-coal-clay mixtures as potential synthetic aggregates

    E-Print Network [OSTI]

    Pettit, Jesse William

    1978-01-01T23:59:59.000Z

    or returned to the adjacent surface coal mines for disposal. Alternatives to these two methods of disposal are being studied (3, 6, 11). The feasibility of using this material as a raw material in the manufacture of synthetic aggregates has recently been... suitability of synthetic aggregates made from lignite fly ash using a rotary kiln. Lignite or subbituminous coals such as those used are typical of the high-lime or "western" coals that are mined in the western half of the United States. Because of the high...

  1. A Synthetic Approach to Stop Codon Scanning Mutagenesis Lihua Nie, Jason Lavinder, Mohosin Sarkar, Kimberly Stephany and Thomas J. Magliery*

    E-Print Network [OSTI]

    Magliery, Thomas J.

    Sarkar, Kimberly Stephany and Thomas J. Magliery* Departments of Chemistry and Biochemistry, The Ohio

  2. Design of insulating devices for in vitro synthetic circuits Elisa Franco, Domitilla Del Vecchio and Richard M. Murray

    E-Print Network [OSTI]

    Murray, Richard M.

    Design of insulating devices for in vitro synthetic circuits Elisa Franco, Domitilla Del Vecchio as an insulating device. This circuit is composed of nucleic acids, which can be designed to interact according their functionality. Insulation blocks are crucial to this purpose. Simple direct connection of different synthetic

  3. A Synthetic Carotenoid Pathway We designed a 8400 nucleotide DNA sequence to encode the seven crt enzymes

    E-Print Network [OSTI]

    Maranas, Costas

    RNA to the free energy change Gtot according to: Predictive Design of Synthetic Microbes 1Pennsylvania State a synthetic gene network that combines cell-to-cell communication with logical cellular computing to execute into a microbial host enables the production of fuels, specialty chemicals, and drugs from renewable feedstocks

  4. 57106 Federal Register / Vol. 78, No. 180 / Tuesday, September 17, 2013 / Proposed Rules for lead in synthetic iron oxide for

    E-Print Network [OSTI]

    proposes to lower the specification limit for lead in synthetic iron oxide for human food use from 1057106 Federal Register / Vol. 78, No. 180 / Tuesday, September 17, 2013 / Proposed Rules for lead in synthetic iron oxide for human food use. DATES: The color additive petition was filed on July 16, 2013

  5. Journal of Chemical Ecology, Vol. 28, No. 5, May 2002 (C 2002) EVALUATION OF SYNTHETIC HYDROCARBONS

    E-Print Network [OSTI]

    Hanks, Lawrence M.

    Journal of Chemical Ecology, Vol. 28, No. 5, May 2002 (C 2002) EVALUATION OF SYNTHETIC HYDROCARBONS of five straight-chain hydrocarbons (C24, C25, C26, C28, C30) to detached elytra of the red milkweed, and placed them in an exposed location outdoors. The amount of hydrocarbons on the elytra did not change over

  6. Shallow intraplate earthquakes in Western Australia observed by Interferometric Synthetic Aperture Radar

    E-Print Network [OSTI]

    Tregoning, Paul

    Shallow intraplate earthquakes in Western Australia observed by Interferometric Synthetic Aperture earthquakes in a stable continental region of southwest Western Australia. Both small-magnitude events occur with tectonic processes in this area of Western Australia often initiate in the upper 1 km of crust. Citation

  7. A fluorescent assay for chloride transport; identification of a synthetic anionophore with improved activity

    E-Print Network [OSTI]

    Smith, Bradley D.

    A fluorescent assay for chloride transport; identification of a synthetic anionophore with improved on the chloride-sensitive probe, lucigenin, is developed for monitoring chloride transport into vesicles, and used to compare the effectiveness of three steroid- derived transporters. A topic of growing interest

  8. Synthetic aggregates prepared from flue gas desulfurization by-products using various binder materials

    SciTech Connect (OSTI)

    Bellucci, J.; Graham, U.M.; Hower, J.C.; Robl, T.L. [Univ. of Kentucky, Lexington, KY (United States). Center for Applied Energy Research

    1994-12-31T23:59:59.000Z

    Flue Gas Desulfurization (FGD) by-products can be converted into environmentally safe and structurally stable aggregates. One type of synthetic aggregate was prepared using an optimum mixture of (FGD) by-products, fly ash, and water. Mineral reactions have been examined using X-ray diffraction and scanning electron microscope.

  9. Hydrogen and minor element incorporation in synthetic rutile G. D. BROMILEY

    E-Print Network [OSTI]

    Hydrogen and minor element incorporation in synthetic rutile G. D. BROMILEY 1,2, * AND N. HILAIRET from substitutional defects. KEYWORDS: rutile, hydrogen, substitution, solubility, spectroscopy of lower- valence cations may be charge-balanced by incorporation of hydrogen in the rutile structure

  10. Synthetic diamond and wurtzite structures self-assemble with isotropic pair interactions Mikael C. Rechtsman,1

    E-Print Network [OSTI]

    Stillinger, Frank

    Synthetic diamond and wurtzite structures self-assemble with isotropic pair interactions Mikael C with strongly repulsive cores that cause the tetrahedrally coordinated diamond and wurtzite lattices-dimensional diamond and wurtzite structures can self-assemble with isotropic in- teractions possessing a strongly

  11. Evaluating speech intelligibility enhancement for HMM-based synthetic speech in noise

    E-Print Network [OSTI]

    Edinburgh, University of

    Evaluating speech intelligibility enhancement for HMM-based synthetic speech in noise Cassia It is possible to increase the intelligibility of speech in noise by enhancing the clean speech signal Valentini-Botinhao, Junichi Yamagishi, Simon King The Centre for Speech Technology Research, University

  12. P16: A distortion-weighted glimpse-based intelligibility metric for modified and synthetic speech

    E-Print Network [OSTI]

    Edinburgh, University of

    for speech enhancement in known noise conditions," in Proc. Interspeech, pp. 1636-1639. M. Cooke, C. Mayo, CP16: A distortion-weighted glimpse-based intelligibility metric for modified and synthetic speech Yan Tang1 and Martin Cooke2,1 Cassia Valentini-Botinhao3 1 Language and Speech Laboratory, University

  13. A multicomponent coupled model of glacier hydrology 1. Theory and synthetic examples

    E-Print Network [OSTI]

    Flowers, Gwenn

    A multicomponent coupled model of glacier hydrology 1. Theory and synthetic examples Gwenn E; published 12 November 2002. [1] Basal hydrology is acknowledged as a fundamental control on glacier dynamics of existing basal hydrology models is the treatment of the glacier bed as an isolated system. We present

  14. Sensor Based Synthetic Actors in a Tennis Game Simulation Hansrudi NOSER

    E-Print Network [OSTI]

    Pratt, Vaughan

    Sensor Based Synthetic Actors in a Tennis Game Simulation Hansrudi NOSER Daniel THALMANN Computer@lig.di.epfl.ch; thalmann@lig.di.epfl.ch) Abstract In this article we propose a model of a tennis game simulation and audition. Physical modeling of the ball dynamic and sound rendering enhance realism. An interactive user

  15. Change Detection Using Synthetic Aperture Sonar: Preliminary Results from the Larvik Trial

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    detection technology for autonomous underwater vehicles (AUVs) equipped with synthetic aperture sonars (SAS of route survey with unmanned systems, this means repeatedly surveying ports and important transit routes the processing have been proposed, however the field as applied to the underwater environment remains in its

  16. Effects of natural and synthetic plant oestrogens on rumen fluid degradation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Effects of natural and synthetic plant oestrogens on rumen fluid degradation of some feedstuffs. V interfere with the rumen degradation of feeds, an extract from SC was prepared, purified, freeze-dried and utilized for in vitro trials of rumen degradability on several feeds: wheat straw (WS), cocksfoot hay (DH

  17. Challenges and opportunities in synthetic biology for chemical engineers Yunzi Luo a

    E-Print Network [OSTI]

    Zhao, Huimin

    Challenges and opportunities in synthetic biology for chemical engineers Yunzi Luo a , Jung-Kul Lee c , Huimin Zhao a,b,n a Department of Chemical and Biomolecular Engineering, University of Illinois, United States c Department of Chemical Engineering, Konkuk University, Seoul 143-701, South Korea H I G H

  18. Ris-PhD-27(EN) Wind Energy Applications of Synthetic

    E-Print Network [OSTI]

    winds in offshore wind resource assessment. Firstly, wind wakes behind two large offshore wind farms farming 3 2.1 Horns Rev and Nysted offshore wind farms 4 3 Synthetic aperture radar 6 3.1 Imaging geometry in offshore wind energy planning as a supplement to on site measurements, which are costly and sparse

  19. Modeling Wildland Fire Radiance in Synthetic Remote Sensing B.S. Beijing Institute of Technology, 1996

    E-Print Network [OSTI]

    Salvaggio, Carl

    efforts in phenomenology studies, algorithm development, and sensor evaluation. Synthetic scenes are also and op- tical properties of wildfire and burn area in an infrared remote sensing system will assist look like as seen by the airborne sensor. Radiance scene rendering of the 3D flame iv #12;v includes 2D

  20. Conserved C-Terminal Domain of Spider Tubuliform Spidroin 1 Contributes to Extensibility in Synthetic Fibers

    SciTech Connect (OSTI)

    Gnesa, Eric; Hsia, Yang; Yarger, Jeffery L.; Weber, Warner; Lin-Cereghino, Joan; Lin-Cereghino, Geoff; Tang, Simon; Agari, Kimiko; Vierra, Craig (AZU); (Pacific)

    2012-05-24T23:59:59.000Z

    Spider silk is renowned for its extraordinary mechanical properties, having a balance of high tensile strength and extensibility. To date, the majority of studies have focused on the production of dragline silks from synthetic spider silk gene products. Here we report the first mechanical analysis of synthetic egg case silk fibers spun from the Latrodectus hesperus tubuliform silk proteins, TuSp1 and ECP-2. We provide evidence that recombinant ECP-2 proteins can be spun into fibers that display mechanical properties similar to other synthetic spider silks. We also demonstrate that silks spun from recombinant thioredoxin-TuSp1 fusion proteins that contain the conserved C-terminal domain exhibit increased extensibility and toughness when compared to the identical fibers spun from fusion proteins lacking the C-terminus. Mechanical analyses reveal that the properties of synthetic tubuliform silks can be modulated by altering the postspin draw ratios of the fibers. Fibers subject to increased draw ratios showed elevated tensile strength and decreased extensibility but maintained constant toughness. Wide-angle X-ray diffraction studies indicate that postdrawn fibers containing the C-terminal domain of TuSp1 have more amorphous content when compared to fibers lacking the C-terminus. Taken together, these studies demonstrate that recombinant tubuliform spidroins that contain the conserved C-terminal domain with embedded protein tags can be effectively spun into fibers, resulting in similar tensile strength but increased extensibility relative to nontagged recombinant dragline silk proteins spun from equivalently sized proteins.

  1. Synthetic fabrication strategy optimizes the illumination geometry and transport properties of dye-sensitized solar cells.

    E-Print Network [OSTI]

    solar cells. Using oriented titanium oxide (TiO2 ) nanotube (NT) arrays has shown promise for dye- sensitized solar cells (DSSCs). High solar conversion efficiency requires that the incident light entersSynthetic fabrication strategy optimizes the illumination geometry and transport properties of dye-sensitized

  2. Super-resolution in incoherent optical imaging using synthetic aperture with Fresnel elements

    E-Print Network [OSTI]

    Rosen, Joseph

    Super-resolution in incoherent optical imaging using synthetic aperture with Fresnel elements Barak the Rayleigh limit of the system is obtained by tiling digitally several Fresnel holographic elements into a complete Fresnel hologram of the observed object. Each element is acquired by the limited-aperture system

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

    SciTech Connect (OSTI)

    Doerry, Armin Walter

    2012-05-01T23:59:59.000Z

    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.

  4. Synthetic Aperture Radar Imaging with Motion Estimation and , T. Callaghan1

    E-Print Network [OSTI]

    Borcea, Liliana

    principles a synthetic aperture radar (SAR) imaging and target motion estimation method that is combined of the data into properly calibrated small apertures, (b) motion or platform trajectory perturbation estimation process. X-band persistent surveillance SAR is a specific application that is covered by our

  5. Birth and Growth of Cavitation Bubbles within Water under Tension Confined in a Simple Synthetic Tree

    E-Print Network [OSTI]

    Ohl, Claus-Dieter

    Birth and Growth of Cavitation Bubbles within Water under Tension Confined in a Simple Synthetic. Cavitation can spontaneously occur, nucleating a bubble. We investigate the dynamics of spontaneous or triggered cavitation inside water filled microcavities of a hydrogel. Results show that a stable bubble

  6. nature biotechnology volume 27 number 12 december 2009 1127 Recent patent applications in synthetic biology

    E-Print Network [OSTI]

    Cai, Long

    for controlling cell function, as a raw material in synthetic biology for reconstructing a biomolecule relative to the expression in the first organism strain prior to its transformation. Advanced Biofuels element having a left inverted repeat region, a right inverted repeat region and a spacer region

  7. For details kindly visit the official website of Indian Institute of Technology Kanpur: www.iitk.ac.in A quarterly newsletter of Indian Institute of Technology Kanpur for Institute's alumni and friends 2005-06/I

    E-Print Network [OSTI]

    Srivastava, Kumar Vaibhav

    .iitk.ac.in A quarterly newsletter of Indian Institute of Technology Kanpur for Institute's alumni and friends 2005-06/I

  8. Excerpted from: R. Pitt, M. Lilburn. S.R. Durrans, S. Burian, S. Nix, J. Vorhees, and J. Martinson (I had a lot of help from my friends). Guidance Manual for Integrated Wet Weather Flow (WWF) Collection and Treatment

    E-Print Network [OSTI]

    Pitt, Robert E.

    . Martinson (I had a lot of help from my friends). Guidance Manual for Integrated Wet Weather Flow (WWF.....................................................................................................................................7 Wet Weather Flow Management: Lessons Learned from the Past

  9. Transport synthetic acceleration methods for one-dimensional deterministic transport problems

    E-Print Network [OSTI]

    Hawkins, William Daryl

    2003-01-01T23:59:59.000Z

    of his busy schedule to talk v ith mc about various aspects of my rcscarch and Dr. Todd Palnmr for his cxpcrtisc, pcrspeci, ivc, and good humor. The many, many friends that I have mct along thc wsy dcscrvc my v arrncst thanks. Without them, none... for a/r, 1/R, AVe will continue this itcrativc process until a spccificd convcrgcncc criterion is mct. 2. Discretizcd Fouricr Analysis Wc can detcrminc thc spectral radius for source-iteration for thc UCB spatially dis- crctizcd Sa transport equation...

  10. 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)

    1996-01-01T23:59:59.000Z

    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.

  11. 2D full wave modeling for a synthetic Doppler backscattering diagnostic

    SciTech Connect (OSTI)

    Hillesheim, J. C.; Schmitz, L.; Kubota, S.; Rhodes, T. L.; Carter, T. A. [Department of Physics and Astronomy, University of California, Los Angeles, California 90095 (United States); Holland, C. [University of California, San Diego, La Jolla, California 92093 (United States)

    2012-10-15T23:59:59.000Z

    Doppler backscattering (DBS) is a plasma diagnostic used in tokamaks and other magnetic confinement devices to measure the fluctuation level of intermediate wavenumber (k{sub {theta}}{rho}{sub s}{approx} 1) density fluctuations and the lab frame propagation velocity of turbulence. Here, a synthetic DBS diagnostic is described, which has been used for comparisons between measurements in the DIII-D tokamak and predictions from nonlinear gyrokinetic simulations. To estimate the wavenumber range to which a Gaussian beam would be sensitive, a ray tracing code and a 2D finite difference, time domain full wave code are used. Experimental density profiles and magnetic geometry are used along with the experimental antenna and beam characteristics. An example of the effect of the synthetic diagnostic on the output of a nonlinear gyrokinetic simulation is presented.

  12. Identification of aluminum scale with the aid of synthetically produced basic aluminum fluoride complexes

    SciTech Connect (OSTI)

    Shuchart, C.E. (Halliburton Services, Duncan, OK (United States)); Ali, S.A. (Chevron U.S.A. Inc., New Orleans, LA (United States))

    1993-11-01T23:59:59.000Z

    Aluminum scaling can be a problem following HF acidizing. In this paper, a series of synthetic aluminum scales was prepared and identified. The aluminum compounds of a field scale were identified with similar procedures. Recent field work showed that the use of acetic acid in the HF acidizing sequences significantly decreased scaling. The role of acetic acid is discussed on the basis of laboratory support of these field data.

  13. Potential Additives to Promote Seal Swell in Synthetic Fuels and Their Effect on Thermal Stability

    SciTech Connect (OSTI)

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

    2008-03-01T23:59:59.000Z

    Synthetic fuels derived from the Fischer–Tropsch (F-T) process using natural gas or coal-derived synthesis gas as feedstocks can be used for powering ground vehicles, aircraft, and ships. Because of their chemical and physical properties, F-T fuels will probably require additives in order to meet specifications with respect to lubricity and seal swell capability for use in ground and air vehicles. Using both experimental and computational studies, the propensity of certain species to enhance the seal swell characteristics of synthetic fuels and surrogates has been determined, and promising additives have been identified. Important structural characteristics for potential additives, namely an aromatic ring along with a polar constituent, are described. The thermal stability of synthetic and surrogate fuels containing the single-component additive benzyl alcohol, which is representative of this structural class, has been determined by batch stressing of the mixtures at 350 °C for up to 12 h. Synthetic fuels spiked with benzyl alcohol at concentrations (vol %) of 1.0, 0.75, and 0.5 have demonstrated the ability to swell nitrile rubber o-rings to a comparable degree as petroleum jet fuel. Further, batch reactor studies have shown that addition of benzyl alcohol does not degrade the thermal oxidative stability of the fuel based on gravimetric analysis of the solid deposits after stressing. GC-MS was used to characterize the products from thermal stressing of neat and additized surrogate jet fuel, and their compositions were compared with respect to the creation of certain species and their potential effect on deposition.

  14. IFP V4.0:a polar-reformatting image formation processor for synthetic aperture radar.

    SciTech Connect (OSTI)

    Eichel, Paul H.

    2005-09-01T23:59:59.000Z

    IFP V4.0 is the fourth generation of an extraordinarily powerful and flexible image formation processor for spotlight mode synthetic aperture radar. It has been successfully utilized in processing phase histories from numerous radars and has been instrumental in the development of many new capabilities for spotlight mode SAR. This document provides a brief history of the development of IFP, a full exposition of the signal processing steps involved, and a short user's manual for the software implementing this latest iteration.

  15. IAC-Star: a Code for Synthetic Color-Magnitude Diagram Computation

    E-Print Network [OSTI]

    A. Aparicio; C. Gallart

    2004-07-28T23:59:59.000Z

    The code IAC-star is presented. It generates synthetic HR and color-magnitude diagrams (CMDs) and is mainly aimed to star formation history studies in nearby galaxies. Composite stellar populations are calculated on a star by star basis, by computing the luminosity, effective temperature and gravity of each star by direct bi-logarithmic interpolation in the metallicity and age grid of a library of stellar evolution tracks. Visual (broad band and HST) and infrared magnitudes are also provided for each star after applying bolometric corrections. The Padua (Bertelli et al. 1994, Girardi et al. 2000) and Teramo (Pietrinferni et al. 2004) stellar evolution libraries and various bolometric corrections libraries are used in the current version. A variety of star formation rate functions, initial mass functions and chemical enrichment laws are allowed and binary stars can be computed. Although the main motivation of the code is the computation of synthetic CMDs, it also provides integrated masses, luminosities and magnitudes as well as surface brightness fluctuation luminosities and magnitudes for the total synthetic stellar population, and therefore it can also be used for population synthesis research. The code is offered for free use and can be executed at the site {\\tt http://iac-star.iac.es}, with the only requirement of referencing this paper and crediting as indicated in the site.

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

    SciTech Connect (OSTI)

    None

    1980-06-01T23:59:59.000Z

    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

    2013-03-01T23:59:59.000Z

    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. Bridging gaps in synthetic biology oversight : iGEM as a testbed for proactive, adaptive risk management

    E-Print Network [OSTI]

    McNamara, Julie H. (Julie Hutton)

    2014-01-01T23:59:59.000Z

    On the surface, the emerging field of synthetic biology looks highly similar to that of genetic engineering. However, the two fields are based upon divergent underlying logic structures. Whereas genetic engineering affects ...

  19. Stratigraphic forward modelling & synthetic seismic images of carbonate Prof. Peter Burgess & Dr. Dave Waltham, Royal Holloway, University of London

    E-Print Network [OSTI]

    Royal Holloway, University of London

    of reservoir heterogeneities, allowing the seismic interpreter to make better-informed interpretation of reservoir intervals imaged on seismic data. The project will assess Stratigraphic forward modelling & synthetic seismic images of carbonate

  20. On the virtual aeroshaping effect of synthetic jets Department of Mechanical and Aerospace Engineering, The George Washington University,

    E-Print Network [OSTI]

    Mittal, Rajat

    in a crossflow is investigated using numerical simulations. It has been suggested that this so-called virtual- teristics of the flow produced by a synthetic jet interacting with a crossflow have also led researchers

  1. In situ X-ray pair distribution function analysis of accelerated carbonation of a synthetic calcium-?silicate?-hydrate gel

    SciTech Connect (OSTI)

    Morandeau, Antoine E.; White, Claire E. (Princeton)

    2015-01-01T23:59:59.000Z

    Calcium–silicate–hydrate (C–S–H) gel is the main binder component in hydrated ordinary Portland cement (OPC) paste, and is known to play a crucial role in the carbonation of cementitious materials, especially for more sustainable alternatives containing supplementary cementitious materials. However, the exact atomic structural changes that occur during carbonation of C–S–H gel remain unknown. Here, we investigate the local atomic structural changes that occur during carbonation of a synthetic calcium–silicate–hydrate gel exposed to pure CO? vapour, using in situ X-ray total scattering measurements and subsequent pair distribution function (PDF) analysis. By analysing both the reciprocal and real-space scattering data as the C–S–H carbonation reaction progresses, all phases present during the reaction (crystalline and non-crystalline) have been identified and quantified, with the results revealing the emergence of several polymorphs of crystalline calcium carbonate (vaterite and calcite) in addition to the decalcified C–S–H gel. Furthermore, the results point toward residual calcium being present in the amorphous decalcified gel, potentially in the form of an amorphous calcium carbonate phase. As a result of the quantification process, the reaction kinetics for the evolution of the individual phases have been obtained, revealing new information on the rate of growth/dissolution for each phase associated with C–S–H gel carbonation. Moreover, the investigation reveals that the use of real space diffraction data in the form of PDFs enables more accurate determination of the phases that develop during complex reaction processes such as C–S–H gel carbonation in comparison to the conventional reciprocal space Rietveld analysis approach.

  2. SPCDC: A user-friendly computational tool for the design and refinement of practical pulse combustion systems

    SciTech Connect (OSTI)

    Barr, P.K.; Keller, J.O. [Sandia National Labs., Albuquerque, NM (United States); Kezerle, J.A. [Gas Research Institute (United States)

    1995-07-01T23:59:59.000Z

    This paper reports on the development and use of a user-friendly, PC-executable computer code that can assist engineers in designing pulse combustors for specific applications and in refining existing units. This code represents the culmination of over 10 years of research and development in the field of pulse combustion. The Sandia Pulse Combustor Design Code, or SPCDC, couples both the fuel-air injection and the energy release to the time-varying pressure wave. Because the injection and combustion processes both drive and are driven by the wave dynamics, this model couples the major processes that occur in a pulse combustor. SPCDC can supplement the time-proven method of actually building and testing a prototype unit, and significantly reduce the number of units that must be tested. It will help produce a superior pulse combustion system tailored to a specific application and should help widen the range of successful applications.

  3. 3rd Work. for Young Researchers on Human-Friendly Robotics, Oct. 2010, Tubingen, Germany Towards Bilateral Teleoperation of Multi-Robot Systems

    E-Print Network [OSTI]

    . For instance, robots are expected to relieve us from monotonous and physically demanding work in industrial.g., telepresence applications where the human operator capabilities are mediated/magnified by the remote robots3rd Work. for Young Researchers on Human-Friendly Robotics, Oct. 2010, T¨ubingen, Germany Towards

  4. How green are electric vehicles? It is thought plug-in hybrids and other electric vehicles are more environmental friendly and

    E-Print Network [OSTI]

    Toohey, Darin W.

    environmental friendly and produce less pollution. Examining other aspects of electric vehicles besides tailpipe electricity generation Majority of electricity in the United States from coal and natural gas CoalHow green are electric vehicles? It is thought plug-in hybrids and other electric vehicles are more

  5. UBC Social Ecological Economic Development Studies (SEEDS) Student Report Empowering Eaters to Make Climate Friendly Choices Carbon Smart Food Guide: A

    E-Print Network [OSTI]

    Climate Friendly Choices Carbon Smart Food Guide: A Public Education Initiative Rose Hsu, Lindsay Jang, Katherine Jassmann, Shaheen Jivanjee, Pavan Johal, Meline Johan, Cherie Kao University of British Columbia status of activities at UBC. We urge you to contact the research persons mentioned in a report

  6. Set home page Bookmark site Add search Show/Hide Menu |Print this page Email to friend >Text Size A A A

    E-Print Network [OSTI]

    West, Stuart

    · ·Set home page Bookmark site Add search Show/Hide Menu |Print this page Email to friend >Text > Matter & Energy > Computers & Math > Fossils & Ruins Science Topics > Agriculture > Astronomy > Biology of ecology and evolutionary biology and animal behavior. For more information, please see our website: www

  7. The Analysis of a Friendly Fire Accident using a Systems Model of Accidents* N.G. Leveson, Ph.D.; Massachusetts Institute of Technology; Cambridge, Massachusetts

    E-Print Network [OSTI]

    Leveson, Nancy

    The Analysis of a Friendly Fire Accident using a Systems Model of Accidents* N.G. Leveson, Ph.D.; University of Victoria; Victoria, Canada Keywords: accident analysis, accident models Abstract In another paper presented at this conference, Leveson describes a new accident model based on systems theory [2

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

    SciTech Connect (OSTI)

    Carter, Sarah R. [J. Craig Venter Institute; Rodemeyer, Michael [University of Virginia; Garfinkel, Michele S. [EMBO; Friedman, Robert M [J. Craig Venter Institute

    2014-05-01T23:59:59.000Z

    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/

  9. BURN CALORIES FREE LISTEN TO THE BIRDS CHECK OUT THE SCENERY MEET FRIENDS REDUCE YOUR CARBON FOOTPRINT FRESH AIR TAKE SHORT-CUTS FEEL THE BREEZE DISCOVER CAMPUS MAKE YOUR OWN ROUTE BURN CALORIES READ A BOOK LISTEN TO THE BIRDS CHECK OUT THE SCENERY

    E-Print Network [OSTI]

    Weiblen, George D

    A BOOK LISTEN TO THE BIRDS CHECK OUT THE SCENERY MEET FRIENDS REDUCE YOUR CARBON FOOTPRINT FRESH AIR BURN CALORIES FREE LISTEN TO THE BIRDS CHECK OUT THE SCENERY MEET FRIENDS REDUCE YOUR CARBON FOOTPRINT FRESH AIR CALORIES FREE LISTEN TO THE BIRDS CHECK OUT THE SCENERY MEET FRIENDS RE- DUCE YOUR CARBON FOOTPRINT FRESH

  10. A synthetic medium for the production of candidin by Streptomyces viridoflavus

    E-Print Network [OSTI]

    Bailey, Don Wayne

    1980-01-01T23:59:59.000Z

    half liters. The fermentor was sterilized for forty-five minutes at 121 C. A 250 ml sterile glucose solution was added to the fermenter which would give a final glucose concentration equal to the one found to give the highest antibiotic yield.... The fermenter was then allowed to set idle for two days to determine if the medium was sterile. Cultures to be used as the inoculum source were grown in a synthetic medium. Five flask cultures which were to provide the cells for each fermentor were washed...

  11. Further Analysis of Real Beam Line Optics From A Synthetic Beam

    SciTech Connect (OSTI)

    Ryan Bodenstein, Michael Tiefenback, Yves Roblin

    2012-07-01T23:59:59.000Z

    Standard closed-orbit techniques for Twiss parameter measurement are not applicable to the open-ended Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab. The evolution of selected sets of real orbits in the accelerator models the behavior of a 'synthetic' beam. This process will be validated against beam profile-based Twiss parameter measurements and should provide the distributed optical information needed to optimize beamline tuning for an open-ended system. This work will discuss the current and future states of this technique, as well as an example of its use in the CEBAF machine.

  12. A Monte Carlo synthetic-acceleration method for solving the thermal radiation diffusion equation

    SciTech Connect (OSTI)

    Evans, Thomas M., E-mail: evanstm@ornl.gov [Oak Ridge National Laboratory, 1 Bethel Valley Rd., Oak Ridge, TN 37831 (United States); Mosher, Scott W., E-mail: moshersw@ornl.gov [Oak Ridge National Laboratory, 1 Bethel Valley Rd., Oak Ridge, TN 37831 (United States); Slattery, Stuart R., E-mail: sslattery@wisc.edu [University of Wisconsin–Madison, 1500 Engineering Dr., Madison, WI 53716 (United States); Hamilton, Steven P., E-mail: hamiltonsp@ornl.gov [Oak Ridge National Laboratory, 1 Bethel Valley Rd., Oak Ridge, TN 37831 (United States)

    2014-02-01T23:59:59.000Z

    We present a novel synthetic-acceleration-based Monte Carlo method for solving the equilibrium thermal radiation diffusion equation in three spatial dimensions. The algorithm performance is compared against traditional solution techniques using a Marshak benchmark problem and a more complex multiple material problem. Our results show that our Monte Carlo method is an effective solver for sparse matrix systems. For solutions converged to the same tolerance, it performs competitively with deterministic methods including preconditioned conjugate gradient and GMRES. We also discuss various aspects of preconditioning the method and its general applicability to broader classes of problems.

  13. A Monte Carlo Synthetic-Acceleration Method for Solving the Thermal Radiation Diffusion Equation

    SciTech Connect (OSTI)

    Evans, Thomas M [ORNL] [ORNL; Mosher, Scott W [ORNL] [ORNL; Slattery, Stuart [University of Wisconsin, Madison] [University of Wisconsin, Madison

    2014-01-01T23:59:59.000Z

    We present a novel synthetic-acceleration based Monte Carlo method for solving the equilibrium thermal radiation diusion equation in three dimensions. The algorithm performance is compared against traditional solution techniques using a Marshak benchmark problem and a more complex multiple material problem. Our results show that not only can our Monte Carlo method be an eective solver for sparse matrix systems, but also that it performs competitively with deterministic methods including preconditioned Conjugate Gradient while producing numerically identical results. We also discuss various aspects of preconditioning the method and its general applicability to broader classes of problems.

  14. 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)

    2008-06-24T23:59:59.000Z

    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.

  15. Structural algorithm to reservoir reconstruction using passive seismic data (synthetic example)

    SciTech Connect (OSTI)

    Smaglichenko, Tatyana A.; Volodin, Igor A.; Lukyanitsa, Andrei A.; Smaglichenko, Alexander V.; Sayankina, Maria K. [Oil and Gas Research Institute, Russian Academy of Science, Gubkina str.3, 119333, Moscow (Russian Federation); Faculty of Computational Mathematics and Cybernetics, M.V. Lomonosov Moscow State University, Leninskie gory, 1, str.52,Second Teaching Building.119991 Moscow (Russian Federation); Shmidt's Institute of Physics of the Earth, Russian Academy of Science, Bolshaya Gruzinskaya str. 10, str.1, 123995 Moscow (Russian Federation); Oil and Gas Research Institute, Russian Academy of Science, Gubkina str.3, 119333, Moscow (Russian Federation)

    2012-09-26T23:59:59.000Z

    Using of passive seismic observations to detect a reservoir is a new direction of prospecting and exploration of hydrocarbons. In order to identify thin reservoir model we applied the modification of Gaussian elimination method in conditions of incomplete synthetic data. Because of the singularity of a matrix conventional method does not work. Therefore structural algorithm has been developed by analyzing the given model as a complex model. Numerical results demonstrate of its advantage compared with usual way of solution. We conclude that the gas reservoir is reconstructed by retrieving of the image of encasing shale beneath it.

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

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40 Buildingto17 34 44Year Jan Feb MarDecade Year-0 Year-1 Year-2Feet) Synthetic

  17. Synthetic & Bio-Based Lubricants Market Forecast | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-f <Maintained By FaultSunpodsSweetwater 4a JumpSyncWaveSystemsSynthetic

  18. Synthetic & Bio-Based Lubricants Market | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-f <Maintained By FaultSunpodsSweetwater 4aSynthetic & Bio-Based

  19. 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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOriginEducationVideoStrategic SafetyGeothermal/Ground-Source HeatSweptCathodeSynthetic Metabolic

  20. Int. J. Patt. Recog. Art. Intell., Special Issue on MR Brain Image Analysis, 1997 1 An Integrated Approach for Locating Neuroanatomical Structure from MRI1

    E-Print Network [OSTI]

    Duncan, James S.

    Int. J. Patt. Recog. Art. Intell., Special Issue on MR Brain Image Analysis, 1997 1 An Integrated Approach for Locating Neuroanatomical Structure from MRI1 Lawrence H. Staib , Amit Chakrabortyy and James S results on synthetic and MR brain images show a significant improvement is achieved as a consequence

  1. Int. J. Patt. Recog. Art. Intell., Special Issue on MR Brain Image Analysis, 1997 1 An Integrated Approach for Locating Neuroanatomical Structure from MRI 1

    E-Print Network [OSTI]

    Int. J. Patt. Recog. Art. Intell., Special Issue on MR Brain Image Analysis, 1997 1 An Integrated Approach for Locating Neuroanatomical Structure from MRI 1 Lawrence H. Staib \\Lambda , Amit Chakraborty y gradient­ based surface finder. Experimental results on synthetic and MR brain images show a significant

  2. Friends of Doernbecher Circle of Friends Newsletter

    E-Print Network [OSTI]

    Chapman, Michael S.

    golf tournament fundraiser at Willamette Valley Country Club in Canby on Monday, September 19 the 2011 designs, learn about the program and order your cards. Happy (almost) Holidays! Contact Carolanne

  3. A model for improving microbial biofuel production using a synthetic feedback loop

    SciTech Connect (OSTI)

    Dunlop, Mary; Keasling, Jay; Mukhopadhyay, Aindrila

    2011-07-14T23:59:59.000Z

    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 regulation, and alternative control architectures can be compared. We propose a model for microbial biofuel production where a synthetic control system is used to increase cell viability and biofuel yields. Although microbes can be engineered to produce biofuels, the fuels are often toxic to cell growth, creating a negative feedback loop that limits biofuel production. These toxic effects may be mitigated by expressing efflux pumps that export biofuel from the cell. We developed a model for cell growth and biofuel production and used it to compare several genetic control strategies for their ability to improve biofuel yields. We show that controlling efflux pump expression directly with a biofuel-responsive promoter is a straight forward way of improving biofuel production. In addition, a feed forward loop controller is shown to be versatile at dealing with uncertainty in biofuel production rates.

  4. Quantum walks in synthetic gauge fields with 3D integrated photonics

    E-Print Network [OSTI]

    Octavi Boada; Leonardo Novo; Fabio Sciarrino; Yasser Omar

    2015-03-24T23:59:59.000Z

    There is great interest in designing photonic devices capable of disorder-resistant transport and information processing. In this work we propose to exploit 3D integrated photonic circuits for the realization of 2D discrete-time quantum walks in a background synthetic gauge field, for both the single and many walker case. The gauge fields are generated by introducing the appropriate phase shifts between waveguides. Polarization-independent phase shifts lead to an Abelian or magnetic field, a case we describe in detail. We characterize the single-particle Abelian quantum walk, finding that in the presence of disorder the magnetic field enhances transport due to the presence of topologically protected chiral edge states which do not localize. Polarization-dependent phase shifts lead to effective non-Abelian gauge fields, which could be adopted to realize of Rashba-like quantum walks with spin-orbit coupling. Our work introduces a flexible platform for the experimental study of multi-particle quantum walks in the presence of synthetic gauge fields, which paves the way towards topologically robust transport of many-body states of photons.

  5. A Bayesian Approach for Image Segmentation with Shape Priors

    SciTech Connect (OSTI)

    Chang, Hang; Yang, Qing; Parvin, Bahram

    2008-06-20T23:59:59.000Z

    Color and texture have been widely used in image segmentation; however, their performance is often hindered by scene ambiguities, overlapping objects, or missingparts. In this paper, we propose an interactive image segmentation approach with shape prior models within a Bayesian framework. Interactive features, through mouse strokes, reduce ambiguities, and the incorporation of shape priors enhances quality of the segmentation where color and/or texture are not solely adequate. The novelties of our approach are in (i) formulating the segmentation problem in a well-de?ned Bayesian framework with multiple shape priors, (ii) ef?ciently estimating parameters of the Bayesian model, and (iii) multi-object segmentation through user-speci?ed priors. We demonstrate the effectiveness of our method on a set of natural and synthetic images.

  6. 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, E-mail: mfunada@ncnp.go.jp

    2014-01-01T23:59:59.000Z

    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.

  7. 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

  8. Experimental Study on Shear Fatigue Behavior and Stiffness Performance of Warm Mix Asphalt by adding Synthetic Wax

    E-Print Network [OSTI]

    Petit, Christophe; Canestrari, Francesco; Pannunzio, Valter; Virgili, Amadeo

    2012-01-01T23:59:59.000Z

    Synthetic waxes produced by standard and registered processes may be used to manufacture Warm Mix Asphalt (WMA), which is a modified asphalt concrete produced, applied and compacted at temperatures below those typically required. This feature leads to environmental benefits, such as reduced energy consumption, gas and fume emissions, as well as to economic/operational advantages, such as lower production costs and greater hauling distances for extended construction seasons with tighter schedules. The present article serves to compare the mechanical performance of a WMA produced by adding synthetic wax with a traditional Hot Mix Asphalt (HMA) specimen, in terms of shear fatigue response and both complex and stiffness moduli. The experimental results and related modeling work demonstrate that adding synthetic wax into the WMA composition does not hinder either the destructive or non-destructive performance of an HMA, and this finding is corroborated by respectively measuring fatigue life and stiffness.

  9. Towards a library of synthetic galaxy spectra and preliminary results of classification and parametrization of unresolved galaxies for Gaia - II

    E-Print Network [OSTI]

    Tsalmantza, P; Rocca-Volmerange, B; Bailer-Jones, C A L; Kontizas, E; Bellas-Velidis, I; Livanou, E; Korakitis, R; Dapergolas, A; Vallenari, A; Fioc, M

    2009-01-01T23:59:59.000Z

    This paper is the second in a series, implementing a classification system for Gaia observations of unresolved galaxies. Our goals are to determine spectral classes and estimate intrinsic astrophysical parameters via synthetic templates. Here we describe (1) a new extended library of synthetic galaxy spectra, (2) its comparison with various observations, and (3) first results of classification and parametrization experiments using simulated Gaia spectrophotometry of this library. Using the PEGASE.2 code, based on galaxy evolution models that take account of metallicity evolution, extinction correction, and emission lines (with stellar spectra based on the BaSeL library), we improved our first library and extended it to cover the domain of most of the SDSS catalogue. We produce an extended library of 28885 synthetic galaxy spectra at zero redshift covering four general Hubble types of galaxies, over the wavelength range between 250 and 1050 nm at a sampling of 1 nm or less. The library is also produced for 4 r...

  10. Towards a library of synthetic galaxy spectra and preliminary results of classification and parametrization of unresolved galaxies for Gaia

    E-Print Network [OSTI]

    Tsalmantza, P; Bailer-Jones, C A L; Rocca-Volmerange, B; Korakitis, R; Kontizas, E; Livanou, E; Dapergolas, A; Bellas-Velidis, I; Vallenari, A; Fioc, M

    2007-01-01T23:59:59.000Z

    Aims:The Gaia astrometric survey mission will, as a consequence of its scanning law, obtain low resolution optical (3300-1000 nm) spectrophotometry of several million unresolved galaxies brighter than V=22. We present the first steps in a project to design and implement a classification system for these data. The goal is both to determine morphological classes and to estimate intrinsic astrophysical parameters via synthetic templates. Here we describe (1) a new library of synthetic galaxy spectra, and (2) first results of classification and parametrization experiments using simulated Gaia spectrophotometry of this library. Methods:We have created a large grid of synthetic galaxy spectra using the PEGASE.2 code, which is based on galaxy evolution models that take into account metallicity evolution, extinction correction, emission lines (with stellar spectra based on the BaSeL library). Our classification and regression models are Support Vector Machines (SVMs), which are kernel-based nonlinear estimators. Resu...

  11. 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.

    1999-09-08T23:59:59.000Z

    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.

  12. Review and discussion of the development of synthetic aperture focusing technique for ultrasonic testing (SAFT-UT)

    SciTech Connect (OSTI)

    Busse, L J; Collins, H D; Doctor, S R

    1984-03-01T23:59:59.000Z

    The development and capabilities of synthetic aperture focusing techniques for ultrasonic testing (SAFT-UT) are presented. The purpose of SAFT-UT is to produce high-resolution images of the interior of opaque objects. The goal of this work is to develop and implement methods which can be used to detect and to quantify the extent of defects and cracks in critical components of nuclear reactors (pressure vessels, primary piping systems, and nozzles). This report places particular emphasis upon the practical experimental results that have been obtained using SAFT-UT as well as the theoretical background that underlies synthetic aperture focusing. A discussion regarding high-speed and real-time implementations of two- and three-dimensional synthetic aperture focusing is also presented.

  13. Experimental Study on Shear Fatigue Behavior and Stiffness Performance of Warm Mix Asphalt by adding Synthetic Wax

    E-Print Network [OSTI]

    Christophe Petit; Anne Millien; Francesco Canestrari; Valter Pannunzio; Amadeo Virgili

    2012-03-13T23:59:59.000Z

    Synthetic waxes produced by standard and registered processes may be used to manufacture Warm Mix Asphalt (WMA), which is a modified asphalt concrete produced, applied and compacted at temperatures below those typically required. This feature leads to environmental benefits, such as reduced energy consumption, gas and fume emissions, as well as to economic/operational advantages, such as lower production costs and greater hauling distances for extended construction seasons with tighter schedules. The present article serves to compare the mechanical performance of a WMA produced by adding synthetic wax with a traditional Hot Mix Asphalt (HMA) specimen, in terms of shear fatigue response and both complex and stiffness moduli. The experimental results and related modeling work demonstrate that adding synthetic wax into the WMA composition does not hinder either the destructive or non-destructive performance of an HMA, and this finding is corroborated by respectively measuring fatigue life and stiffness.

  14. University of Michigan Alumni and friends who work in and around the State Capitol are welcome to participate in the Wolverine Caucus. Our mission is to provide diverse forums at which University of Michigan friends can meet one another, enjoy fellowship,

    E-Print Network [OSTI]

    Kamat, Vineet R.

    ~ University of Michigan Alumni and friends who work in and around the State Capitol are welcome to participate in the Wolverine Caucus. Our mission is to provide diverse forums at which University of Michigan of the University of Michigan. To receive announcements of upcoming programs, call the UM Lansing Service Center

  15. Improved realization of canonical Chua's circuit with synthetic inductor using current feedback operational amplifiers

    E-Print Network [OSTI]

    R. Jothimurugan; K. Suresh; P. Megavarna Ezhilarasu; K. Thamilmaran

    2014-08-21T23:59:59.000Z

    In this paper, we report an improved implementation of an inductorless third order autonomous canonical Chua's circuit. The active elements as well as the synthetic inductor employed in this circuit are designed using current feedback operational amplifiers (CFOAs). The reason for employing CFOAs is that they have better features such as high slew rate, high speed of operation, etc., which enable the circuit to operate at higher frequency ranges, when compared to the circuits designed using voltage operational amplifiers. In addition to this, the inclusion of CFOAs provide a buffered output which directly represent a state variable of the system. The Multisim simulations in the time and frequency domains confirm the theoretical estimates of the performance of the proposed circuit at high frequencies. It is also confirmed through hardware experiments.

  16. Synthetic gauge fields and Weyl point in Time-Reversal Invariant Acoustic Systems

    E-Print Network [OSTI]

    Xiao, Meng; He, Wen-Yu; Zhang, Z Q; Chan, C T

    2015-01-01T23:59:59.000Z

    Inspired by the discovery of quantum hall effect and topological insulator, topological properties of classical waves start to draw worldwide attention. Topological non-trivial bands characterized by non-zero Chern numbers are realized with external magnetic field induced time reversal symmetry breaking or dynamic modulation. Due to the absence of Faraday-like effect, the breaking of time reversal symmetry in an acoustic system is commonly realized with moving background fluids, and hence drastically increases the engineering complexity. Here we show that we can realize effective inversion symmetry breaking and effective gauge field in a reduced two-dimensional system by structurally engineering interlayer couplings, achieving an acoustic analog of the topological Haldane model. We then find and demonstrate unidirectional backscattering immune edge states. We show that the synthetic gauge field is closely related to the Weyl points in the three-dimensional band structure.

  17. Zeeman tomography of magnetic white dwarfs, I. Reconstruction of the field geometry from synthetic spectra

    E-Print Network [OSTI]

    F. Euchner; S. Jordan; K. Beuermann; B. T. Gaensicke; F. V. Hessmann

    2002-05-21T23:59:59.000Z

    We have computed optical Zeeman spectra of magnetic white dwarfs for field strengths between 10 and 200MG and effective temperatures between 8000 and 40000K. They form a database containing 20628 sets of flux and circular polarization spectra. A least-squares optimization code based on an evolutionary strategy can recover relatively complex magnetic field topologies from phase-resolved synthetic Zeeman spectra of rotating magnetic white dwarfs. We consider dipole and quadrupole components which are non-aligned and shifted off-centre. The model geometries include stars with a single high-field spot and with two spots separated by approx. 90 degrees. The accuracy of the recovered field structure increases with the signal-to-noise ratio of the input spectra and is significantly improved if circular polarization spectra are included in addition to flux spectra. We discuss the strategies proposed so far to unravel the field geometries of magnetic white dwarfs.

  18. Observation of chiral edge states with neutral fermions in synthetic Hall ribbons

    E-Print Network [OSTI]

    Mancini, M; Cappellini, G; Livi, L; Rider, M; Catani, J; Sias, C; Zoller, P; Inguscio, M; Dalmonte, M; Fallani, L

    2015-01-01T23:59:59.000Z

    Chiral edge states are a hallmark of quantum Hall physics. In electronic systems, they appear as a macroscopic consequence of the cyclotron orbits induced by a magnetic field, which are naturally truncated at the physical boundary of the sample. Here we report on the experimental realization of chiral edge states in a ribbon geometry with an ultracold gas of neutral fermions subjected to an artificial gauge field. By imaging individual sites along a synthetic dimension, we detect the existence of the edge states, investigate the onset of chirality as a function of the bulk-edge coupling, and observe the edge-cyclotron orbits induced during a quench dynamics. The realization of fermionic chiral edge states is a fundamental achievement, which opens the door towards experiments including edge state interferometry and the study of non-Abelian anyons in atomic systems.

  19. Observation of chiral edge states with neutral fermions in synthetic Hall ribbons

    E-Print Network [OSTI]

    M. Mancini; G. Pagano; G. Cappellini; L. Livi; M. Rider; J. Catani; C. Sias; P. Zoller; M. Inguscio; M. Dalmonte; L. Fallani

    2015-02-09T23:59:59.000Z

    Chiral edge states are a hallmark of quantum Hall physics. In electronic systems, they appear as a macroscopic consequence of the cyclotron orbits induced by a magnetic field, which are naturally truncated at the physical boundary of the sample. Here we report on the experimental realization of chiral edge states in a ribbon geometry with an ultracold gas of neutral fermions subjected to an artificial gauge field. By imaging individual sites along a synthetic dimension, we detect the existence of the edge states, investigate the onset of chirality as a function of the bulk-edge coupling, and observe the edge-cyclotron orbits induced during a quench dynamics. The realization of fermionic chiral edge states is a fundamental achievement, which opens the door towards experiments including edge state interferometry and the study of non-Abelian anyons in atomic systems.

  20. Crystallization and Stress Relaxation in Highly Stretched Samples of Natural Rubber and its Synthetic Analogue

    SciTech Connect (OSTI)

    Tosaka,M.; Kawakami, D.; Senoo, K.; Kohjiya, S.; Toki, S.; Hsiao, B.

    2006-01-01T23:59:59.000Z

    Vulcanizates of natural rubber (NR) and its synthetic analogue (IR) were quickly stretched to 6 times the original length. The post stretch relaxation of tensile stress and the development of strain-induced crystallization (SIC) were studied by simultaneous measurements of the stress and the diffraction intensities using the synchrotron X-ray source. In the range of 8 s, NR crystallized much faster than IR. Accordingly, the origin of the superior toughness of NR was thought to come from the ability of rapid SIC. Time constants of the post-stretch crystallization were estimated from the X-ray study. Then the crystallization time constants were used to decompose the contribution of SIC from the total magnitude of the post-stretch relaxation. The contribution of SIC was dominant for the total magnitude of the post-stretch relaxation during several seconds.

  1. Low-Temperature Heat Capacity and Localized Vibrational Modes in Natural and Synthetic Tetrahedrites

    SciTech Connect (OSTI)

    Lara-Curzio, Edgar [ORNL] [ORNL; May, Andrew F [ORNL] [ORNL; Delaire, Olivier A [ORNL] [ORNL; McGuire, Michael A [ORNL] [ORNL; Lu, Xu [Michigan State University] [Michigan State University; Li, Cheng-Yun [Michigan State University] [Michigan State University; Case, Eldon D [Michigan State University, East Lansing] [Michigan State University, East Lansing; Morelli, Donold [Michigan State University, East Lansing] [Michigan State University, East Lansing

    2014-01-01T23:59:59.000Z

    The heat capacity of natural (Cu12-x (Fe, Zn, Ag)x(Sb, As)4S13) and synthetic (Cu12-xZnxSb4S13 with x=0, 1, 2) tetrahedrite compounds was measured between 2K and 380K. It was found that the temperature dependence of the heat capacity can be described using a Debye term and three Einstein oscillators with characteristic temperatures that correspond to energies of ~1.0 meV, ~2.8 meV and ~8.4 meV. The existence of localized vibration modes, which are assigned to the displacements of the trigonally coordinated Cu atoms in the structure, is discussed in the context of anharmonicity and its effect on the low lattice thermal conductivity exhibited by these compounds.

  2. 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.

    2009-12-02T23:59:59.000Z

    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.

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

    SciTech Connect (OSTI)

    None

    2010-08-15T23:59:59.000Z

    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.

  4. A synthetic autonomous rotary nanomotor made from and fuelled by DNA

    E-Print Network [OSTI]

    Dunn, Katherine E

    2015-01-01T23:59:59.000Z

    DNA nanostructures are made using synthetic DNA strands, the sequences of which are designed such that they will self-assemble into the desired form by hybridization of complementary domains. Various structures and devices have been presented, including DNA tweezers, nanorobots and a range of linear motors such as bipedal walkers. Inspiration for the latter is drawn from naturally occurring molecular motors like kinesin. This paper describes a concept for an autonomous rotary nanomotor made from DNA, which utilizes the well-known and widely-studied phenomenon of toehold-mediated DNA strand displacement. The motor is to be driven by a series of strand displacement reactions, the order of which is controlled by steric constraints arising from the secondary structure of the DNA strands comprising the motor mechanism. The capabilities of DNA motors would be extended significantly if autonomous rotary motion could be achieved. The device has a range of potential applications, including molecular computation and si...

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

    SciTech Connect (OSTI)

    None

    1980-01-01T23:59:59.000Z

    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)

  6. ERCB updates estimated reserves of crude bitumen and synthetic crude oil

    SciTech Connect (OSTI)

    Not Available

    1986-09-01T23:59:59.000Z

    The Alberta Energy Resources Conservation Board prepares yearly updates of Alberta reserves of crude bitumen and synthetic crude oil. The latest figures are as of the end of 1985. Alberta's crude bitumen reserves are contained in designated deposits with the oil sand areas of Athabasca, Cold Lake, and Peace River. The total initial volume of crude bitumen in-place for the designated deposits at December 31, 1985 was estimated as 266.4 billion cubic meters. Within the potentially mineable areas, the initial mineable volume in-place of crude bitumen was established to be 11.9 billion cubic meters. After allowing for surface facilities (plant sites, tailings ponds, discard dumps), environmental protection corridors along major rivers, isolated mineable areas, and assuming a combined mining/extraction recovery factor of 0.78, the resulting initial established mineable reserve of crude bitumen is estimated to be 5.2 billion cubic meters. Data are presented in three tables.

  7. Critical analysis on nanostructured CoFeB synthetic orthogonal ferrimagnet

    SciTech Connect (OSTI)

    Chen, Y. S.; Lin, J. G., E-mail: jglin@ntu.edu.tw [Center for Condensed Matter Sciences, National Taiwan University, Taipei 10617, Taiwan (China); Cheng, Chih-Wei; Chern, G. [Department of Physics, National Chung Cheng University, Chia-Yi 621, Taiwan (China)

    2014-09-21T23:59:59.000Z

    Critical analysis on the magnetic properties of synthetic ferrimagnet (SyF), Ta/MgO/CoFeB/Ru/CoFeB/MgO/Ta, is demonstrated via both static and dynamic techniques. With the Ru thickness being 2.3?nm, the coupling between two CoFeB layers becomes orthogonal, which can be used for spin-transfer-torque nano-oscillator (STNO). The fitting of angular dependent ferromagnetic resonance (FMR) allows the precise determination of magnetic anisotropy of each CoFeB layer, the relative magnetizations and the exchange field near the frequency of STNO applications. In addition, the mechanism of resonance broadening at out-of-plane direction is identified to be magnetic inhomogeneity by fitting the angular dependent linewidth of FMR spectra, which provides indispensable information for the future design of STNO devices.

  8. A model for forming airborne synthetic aperture radar images of underground targets

    SciTech Connect (OSTI)

    Doerry, A.W.

    1994-01-01T23:59:59.000Z

    Synthetic Aperture Radar (SAR) from an airborne platform has been proposed for imaging targets beneath the earth`s surface. The propagation of the radar`s energy within the ground, however, is much different than in the earth`s atmosphere. The result is signal refraction, echo delay, propagation losses, dispersion, and volumetric scattering. These all combine to make SAR image formation from an airborne platform much more challenging than a surface imaging counterpart. This report treats the ground as a lossy dispersive half-space, and presents a model for the radar echo based on measurable parameters. The model is then used to explore various imaging schemes, and image properties. Dynamic range is discussed, as is the impact of loss on dynamic range. Modified window functions are proposed to mitigate effects of sidelobes of shallow targets overwhelming deeper targets.

  9. Augmenting real data with synthetic data: an application in assessing radio-isotope identification algorithms

    SciTech Connect (OSTI)

    Burr, Tom L [Los Alamos National Laboratory; Hamada, Michael [Los Alamos National Laboratory; Graves, Todd [Los Alamos National Laboratory; Myers, Steve [Los Alamos National Laboratory

    2008-01-01T23:59:59.000Z

    The performance of Radio-Isotope Identification (RIID) algorithms using gamma spectroscopy is increasingly important. For example, sensors at locations that screen for illicit nuclear material rely on isotope identification to resolve innocent nuisance alarms arising from naturally occurring radioactive material. Recent data collections for RIID testing consist of repeat measurements for each of several scenarios to test RIID algorithms. Efficient allocation of measurement resources requires an appropriate number of repeats for each scenario. To help allocate measurement resources in such data collections for RIID algorithm testing, we consider using only a few real repeats per scenario. In order to reduce uncertainty in the estimated RIID algorithm performance for each scenario, the potential merit of augmenting these real repeats with realistic synthetic repeats is also considered. Our results suggest that for the scenarios and algorithms considered, approximately 10 real repeats augmented with simulated repeats will result in an estimate having comparable uncertainty to the estimate based on using 60 real repeats.

  10. Low-temperature heat capacity and localized vibrational modes in natural and synthetic tetrahedrites

    SciTech Connect (OSTI)

    Lara-Curzio, E., E-mail: laracurzioe@ornl.gov; May, A. F.; Delaire, O.; McGuire, M. A. [Materials Science and Technology Division, Oak Ridge National Laboratory, 1 Bethel Valley Rd., Oak Ridge, Tennessee 37831 (United States); Lu, X.; Liu, Cheng-Yun; Case, E. D.; Morelli, D. T. [Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, Michigan 48824 (United States)

    2014-05-21T23:59:59.000Z

    The heat capacity of natural (Cu{sub 12?x} (Fe, Zn, Ag){sub x}(Sb, As){sub 4}S{sub 13}) and synthetic (Cu{sub 12?x}Zn{sub x}Sb{sub 4}S{sub 13} with x?=?0, 1, 2) tetrahedrite compounds was measured between 2?K and 380?K. It was found that the temperature dependence of the heat capacity can be described using a Debye term and three Einstein oscillators with characteristic temperatures that correspond to energies of ?1.0?meV, ?2.8?meV, and ?8.4?meV. The existence of localized vibrational modes, which are assigned to the displacements of the trigonally coordinated Cu atoms in the structure, is discussed in the context of anharmonicity and its effect on the low lattice thermal conductivity exhibited by these compounds.

  11. Pb+ irradiation of synthetic zircon (ZrSiO4): Infrared spectroscopic investigation

    SciTech Connect (OSTI)

    Zhang, Ming [University of Cambridge; Boatner, Lynn A [ORNL; Salje, Ekhard K.H. [University of Cambridge; Honda, Shin-ichi [ORNL; Ewing, Rodney C. [University of Michigan

    2008-01-01T23:59:59.000Z

    The structural variations of synthetic zircon (ZrSiO{sub 4}) single crystals irradiated at room temperature by 280 keV Pb{sup +} ions (with fluences up to 1 x 10{sup 15} ions/cm{sup 2}) were investigated using infrared (IR) spectroscopy. Like metamict zircon whose crystal structure is damaged and amorphized by naturally occurring {alpha}-decay events, the Pb{sup +}-irradiated zircon crystals show a dramatic decrease in reflectivity. However, no significant decrease in wavenumbers of the stretching vibrations of SiO{sub 4} tetrahedra in zircon was detected. The Pb{sup +}-implanted zircon exhibits new IR bands, indicating irradiation-induced new vibrations or domains, clusters or phases in addition to SiO{sub 2} and ZrO{sub 2}. IR features consistent with those of Pb silicates (with a divalent state, i.e., Pb{sup 2+}) are also found in the irradiated sample. This finding implies that some of the radiogenic Pb in natural zircon might not actually reside in the zircon lattice or in ZrSiO{sub 4} phases, but form new local domains or clusters. Infrared bands of OH-stretching vibrations were also detected in the irradiated synthetic zircon, which was originally free from OH features prior to the irradiation. These results indicate that H can easily diffuse into the irradiated layer or into irradiated-induced phases to form OH or and hydrous species after the irradiated material is damaged. The type and content of hydrous species vary with irradiation fluences.

  12. Multivariate synthetic streamflow generation using a hybrid model based on artificial neural networks Hydrology and Earth System Sciences, 6(4), 641654 (2002) EGS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    networks 641 Hydrology and Earth System Sciences, 6(4), 641­654 (2002) © EGS Multivariate synthetic associated with hydrological processes, making it valuable as a practical tool for synthetic generation backpropagation, hydrological scenario generation, multivariate time-series. Introduction It has been almost four

  13. Design of insulating devices for in vitro synthetic circuits Elisa Franco, Domitilla Del Vecchio and Richard M. Murray

    E-Print Network [OSTI]

    Murray, Richard M.

    Design of insulating devices for in vitro synthetic circuits Elisa Franco, Domitilla Del Vecchio as an insulating device. This circuit is composed of nucleic acids, which can be designed to interact according to interconnect different transcriptional modules in a large network, preserving their functionality. Insulation

  14. Clay quantification and AreAr dating of synthetic and natural gouge: Application to the Miocene Sierra Mazatan

    E-Print Network [OSTI]

    Clay quantification and AreAr dating of synthetic and natural gouge: Application to the Miocene on the assumption that illite in fault gouge is a mixture of two populations of clays: one detrital, derived from remained largely untested. We demonstrate the validity of our clay quantification technique using

  15. Biological Hydrogen Production Using Synthetic Wastewater Biotin and glutamic acid are not required for biological hydrogen production.

    E-Print Network [OSTI]

    Barthelat, Francois

    Biological Hydrogen Production Using Synthetic Wastewater Conclusion ·Biotin and glutamic acid are not required for biological hydrogen production. ·MgSO4 .7H2O is a required nutrient, but hydrogen production work should focus on minimizing the lag time in biological hydrogen production, by varying nutrient

  16. BIOL/MATH 393 Synthetic Biology Professors: Dr. Kristin O'Brien, kmobrien@alaska.edu, 474-5311

    E-Print Network [OSTI]

    Ickert-Bond, Steffi

    : Microbes that convert corn into plastic; a microbial fuel cell that generates electricity; E. coli bacteria that synthesize hemoglobin used for blood transfusions; E. coli that sense and destroy cancer cells- all. They will work together to design a synthetic microbe, construct the microbe and present results to the class

  17. Discontinuous Non-Rigid Motion Analysis of Sea Ice using C-Band Synthetic Aperture Radar Satellite Imagery

    E-Print Network [OSTI]

    Delaware, University of

    Discontinuous Non-Rigid Motion Analysis of Sea Ice using C-Band Synthetic Aperture Radar Satellite@cis.udel.edu Cathleen Geiger Snow and Ice Branch USACRREL 72 Lyme Rd, Hanover, NH 03755 cathleen@cis.udel.edu Abstract Sea-ice motion consists of complex non-rigid motions in- volving continuous, piece-wise continuous

  18. Synthetic diamond and wurtzite structures selfassemble with isotropic pair interactions Mikael Rechtsman, Frank Stillinger, Salvatore Torquato 2,3,4

    E-Print Network [OSTI]

    Stillinger, Frank

    Synthetic diamond and wurtzite structures self­assemble with isotropic pair interactions Mikael wurtzite lattices stabilize, evidenced lattice sums, phonon spectra, positive­energy defects, self result three­dimensional diamond and wurtzite structures self­assemble with isotropic teractions

  19. Synthetic Aperture and 3D Imaging for Mine Hunting Sonar F. Florin F. Fohanno I. Quidu J.-P. Malkasse

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    for various existing systems as hull mounted sonar and unmanned underwater vehicles : synthetic aperture.-P. Malkasse Thales Underwater Systems Route de sainte Anne du Portzic, CS 43814, 29238 Brest cedex 3, France to an acceptable level. These MCM operations require resources (sonar, sweep, vehicle,...) that are necessary

  20. Industrial-hygiene walk-through survey report of Firestone Synthetic Rubber and Latex Company, Lake Charles, Louisiana

    SciTech Connect (OSTI)

    Fajen, J.M.; Ungers, L.J.

    1986-03-01T23:59:59.000Z

    A walk-through survey was conducted at the Firestone Synthetic Rubber and Latex Company, Lake Charles, Louisiana in July, 1985. The purpose of the survey was to obtain information on the 1,3-butadiene polymer manufacturing process and evaluate exposure potential. Bulk samples of vinylpyridine latex, styrene/butadiene rubber, and polybutadiene rubber were analyzed for residual 1,3-butadiene.

  1. Sustainability of Forage-based Livestock Production Systems in South Texas in an Era of High Synthetic Nitrogen Fertilizer Prices

    E-Print Network [OSTI]

    Sustainability of Forage-based Livestock Production Systems in South Texas in an Era of High of soil tests and alternative application methods. The second alternative is to reintroduce into their management practices that were the norm until the advent of cheap synthetic fertilizers after 1945

  2. Chemistry of natural fuel: Use of wastes of synthetic fatty acid production for obtaining water-bitumen emulsions

    SciTech Connect (OSTI)

    Syroezhko, A.M.; Antipova, E.I.; Paukku, A.N. [St. Petersburg Technological Inst. (Russian Federation)

    1995-12-10T23:59:59.000Z

    The possibility of producing water-emulsion waterproofing mastic and waterproofing coating based on bitumen, rubber crumb, and bottoms from production of synthetic fatty acids was studied. The physicochemical properties (softening point, ductility, sorptive properties, and friability) of the waterproofing coating based on a water-emulsion mastic were measured.

  3. Fast Synthetic Vision, Memory, and Learning Models for Virtual Humans James J. Kuffner, Jr JeanClaude Latombe

    E-Print Network [OSTI]

    Pratt, Vaughan

    Fast Synthetic Vision, Memory, and Learning Models for Virtual Humans James J. Kuffner, Jr Jean, and learning for au­ tonomous animated characters in real­time virtual environ­ ments. The model is efficient of quickly synthesizing from navigation goals the collision­free mo­ tions for animated human figures

  4. UCI SocSci 180G UCLA HCS 110 Artificial Culture: Experiments in Synthetic Anthropology Nicholas Gessler

    E-Print Network [OSTI]

    White, Douglas R.

    Syllabus UCI SocSci 180G UCLA HCS 110 Artificial Culture: Experiments in Synthetic Anthropology processes that make us human. These massively parallel reflexive interactions have remained largely for alternative counterfactual worlds, and experiments with "what-if" scenarios for explaining worlds around us

  5. 3'-OH LABELLING OF SYNTHETIC OLIGONUCLEOTIDES WITH NUCLEOTIDE ANALOGS TO USE THEM AS NON-RADIOACTIVE PROBES

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    3'-OH LABELLING OF SYNTHETIC OLIGONUCLEOTIDES WITH NUCLEOTIDE ANALOGS TO USE THEM AS NON. Cloning of bovine rotavirus (RF strain) : Nucleotide sequence of the gene coding for the major capsid oligonucleotides. Annu Rev Biochem 53:323-356 So M, Mc Carthy BJ, 1980. Nucleotide sequence of bacterial transposon

  6. Abstract--In the design of a spaceborne Synthetic Aperture RADAR mission with multiple modes and swaths, like the

    E-Print Network [OSTI]

    Gesbert, David

    the modes. Index Terms-- Synthetic Aperture Radar, STRIPMAP, TOPSAR. Conference topic: SAR/ISAR I Sophia-Antipolis cedex, France. mail: lorenzo.maggi@eurecom.fr calibration and the processing. In order of a spaceborne SAR. Let us refer to the geometry of Fig. 1.a, where we assumed for simplicity flat earth

  7. Application of LSQR to Calibration of a MODFLOW Model: A Synthetic Study Chris Muffels1,2

    E-Print Network [OSTI]

    Barrash, Warren

    Tonkin2,3 , Haijiang Zhang1 , Mary Anderson1 , Tom Clemo4 1 University of Wisconsin-Madison, muffels, tomc@cgiss.boisestate.edu, Boise, ID, USA ABSTRACT The inverse problem in groundwater modeling is often of the LSQR method for solving the inverse problem for groundwater flow using a synthetic model and compare

  8. Digitoxin and a synthetic monosaccharide analog inhibit cell viability in lung cancer cells

    SciTech Connect (OSTI)

    Elbaz, Hosam A. [Department of Basic Pharmaceutical Sciences, West Virginia University, Morgantown, WV 26506 (United States)] [Department of Basic Pharmaceutical Sciences, West Virginia University, Morgantown, WV 26506 (United States); Stueckle, Todd A. [Department of Basic Pharmaceutical Sciences, West Virginia University, Morgantown, WV 26506 (United States) [Department of Basic Pharmaceutical Sciences, West Virginia University, Morgantown, WV 26506 (United States); National Institute for Occupational Safety and Health, Morgantown, WV26506 (United States); Wang, Hua-Yu Leo; O'Doherty, George A. [Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115 (United States)] [Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115 (United States); Lowry, David T.; Sargent, Linda M.; Wang, Liying [National Institute for Occupational Safety and Health, Morgantown, WV26506 (United States)] [National Institute for Occupational Safety and Health, Morgantown, WV26506 (United States); Dinu, Cerasela Zoica, E-mail: cerasela-zoica.dinu@mail.wvu.edu [Department of Chemical Engineering, West Virginia University, Morgantown, WV 26506 (United States); Rojanasakul, Yon, E-mail: yrojan@hsc.wvu.edu [Department of Basic Pharmaceutical Sciences, West Virginia University, Morgantown, WV 26506 (United States)] [Department of Basic Pharmaceutical Sciences, West Virginia University, Morgantown, WV 26506 (United States)

    2012-01-01T23:59:59.000Z

    Mechanisms of digitoxin-inhibited cell growth and induced apoptosis in human non-small cell lung cancer (NCI-H460) cells remain unclear. Understanding how digitoxin or derivate analogs induce their cytotoxic effect below therapeutically relevant concentrations will help in designing and developing novel, safer and more effective anti-cancer drugs. In this study, NCI-H460 cells were treated with digitoxin and a synthetic analog D6-MA to determine their anti-cancer activity. Different concentrations of digitoxin and D6-MA were used and the subsequent changes in cell morphology, viability, cell cycle, and protein expressions were determined. Digitoxin and D6-MA induced dose-dependent apoptotic morphologic changes in NCI-H460 cells via caspase-9 cleavage, with D6-MA possessing 5-fold greater potency than digitoxin. In comparison, non-tumorigenic immortalized bronchial and small airway epithelial cells displayed significantly less apoptotic sensitivity compared to NCI-H460 cells suggesting that both digitoxin and D6-MA were selective for NSCLC. Furthermore, NCI-H460 cells arrested in G(2)/M phase following digitoxin and D6-MA treatment. Post-treatment evaluation of key G2/M checkpoint regulatory proteins identified down-regulation of cyclin B1/cdc2 complex and survivin. Additionally, Chk1/2 and p53 related proteins experienced down-regulation suggesting a p53-independent cell cycle arrest mechanism. In summary, digitoxin and D6-MA exert anti-cancer effects on NCI-H460 cells through apoptosis or cell cycle arrest, with D6-MA showing at least 5-fold greater potency relative to digitoxin. -- Highlights: ? Digitoxin and synthetic analog D6-MA induced apoptotic morphologic changes in NCI-H460 cells in a dose-dependent manner. ? Apoptotic cell death induced by analog was 5-fold more potent when compared to digitoxin. ? NCI-H460 cells arrested in G(2)/M phase following digitoxin (? 5 nM) and analog (? 1 nM) treatment. ? Digitoxin inhibited the expression of cyclin B1/cdc2 complex and survivin at sub-therapeutic concentrations. ? D6-MA was 4-fold more potent than digitoxin.

  9. Multicomponent Equilibrium Models for Testing Geothermometry Approaches

    SciTech Connect (OSTI)

    Cooper, D. Craig; Carl D. Palmer; Robert W. Smith; Travis L. McLing

    2013-02-01T23:59:59.000Z

    Geothermometry is an important tool for estimating deep reservoir temperature from the geochemical composition of shallower and cooler waters. The underlying assumption of geothermometry is that the waters collected from shallow wells and seeps maintain a chemical signature that reflects equilibrium in the deeper reservoir. Many of the geothermometers used in practice are based on correlation between water temperatures and composition or using thermodynamic calculations based a subset (typically silica, cations or cation ratios) of the dissolved constituents. An alternative approach is to use complete water compositions and equilibrium geochemical modeling to calculate the degree of disequilibrium (saturation index) for large number of potential reservoir minerals as a function of temperature. We have constructed several “forward” geochemical models using The Geochemist’s Workbench to simulate the change in chemical composition of reservoir fluids as they migrate toward the surface. These models explicitly account for the formation (mass and composition) of a steam phase and equilibrium partitioning of volatile components (e.g., CO2, H2S, and H2) into the steam as a result of pressure decreases associated with upward fluid migration from depth. We use the synthetic data generated from these simulations to determine the advantages and limitations of various geothermometry and optimization approaches for estimating the likely conditions (e.g., temperature, pCO2) to which the water was exposed in the deep subsurface. We demonstrate the magnitude of errors that can result from boiling, loss of volatiles, and analytical error from sampling and instrumental analysis. The estimated reservoir temperatures for these scenarios are also compared to conventional geothermometers. These results can help improve estimation of geothermal resource temperature during exploration and early development.

  10. 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

    2012-02-27T23:59:59.000Z

    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

  11. Penn State's Center for Sports Surface ResearchPenn State's Center for Sports Surface ResearchPenn State's Center for Sports Surface ResearchPenn State's Center for Sports Surface Research Surface Temperature of Synthetic Turf

    E-Print Network [OSTI]

    Kaye, Jason P.

    Penn State's Center for Sports Surface Research Why do synthetic surfaces get hot? · Black crumb rubber Temperature of Synthetic Turf #12;Penn State's Center for Sports Surface ResearchPenn State's Center for Sports Surface ResearchPenn State's Center for Sports Surface Research How hot can synthetic turf get

  12. Numerical and experimental design of three-electrode spark gap for synthetic test circuits

    SciTech Connect (OSTI)

    Osmokrovic, P.; Lazarevic, Z.; Kusic, D. (Buleva Revolucije 73, Belgrade (Yugoslavia). Faculty of Electrical Engineering); Arsic, N. (Suncani Breg bb, Pristina (Yugoslavia). Faculty of Electrical Engineering)

    1994-07-01T23:59:59.000Z

    The development of a three-electrode spark gap used with synthetic circuit is considered in this paper. Two types of three-electrode gas insulated spark gaps have been tested: a spark gap with a third electrode being inside the main electrode, and a spark gap with a separate third electrode. Both types of spark gaps were theoretically sized in the optimal way. Several characteristics are determined experimentally: (1) the influence of the gas insulation parameters on the spark gap functioning, (2) the influence of the working and triggering voltages polarities on the spark gap functioning, (3) the influence of the triggering voltage rate-of-rise on the spark gap functioning and (4) the degree of spark gap erosion vs number of operations. Three types of gases were applied: SF6 gas, N2 gas and mixture of 60% SF6 with 40% N2. Also, three electrode materials were used: copper, steel and tungsten. The spark gap switching time and delay time are measured. The statistical analysis of results is presented.

  13. 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

    2012-02-01T23:59:59.000Z

    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.

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

    DOE Patents [OSTI]

    Kare, Jordin T. (San Ramon, CA)

    1999-10-26T23:59:59.000Z

    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.

  15. Hydrogenation of aromatics in synthetic crude distillates catalyzed by platinum supported in molecular sieves

    SciTech Connect (OSTI)

    Kimbara, N.; Charland, J.P. [CANMET, Ottawa, Ontario (Canada)] [CANMET, Ottawa, Ontario (Canada); Wilson, M.F. [CANMET, Devon, Alberta (Canada)] [CANMET, Devon, Alberta (Canada)

    1996-11-01T23:59:59.000Z

    Catalytic hydrogenation of synthetic crude distillates from Canadian oil sands was carried out over platinum metal supported in pillared interlayered clay (PILC) and Y-zeolite. The molecular sieve supports were employed to modify the properties of dispersed platinum particles and improve their resistance to poisoning by sulfur. The objective was to reduce the distillate aromatic content to meet diesel emission control standards and cetane number requirements. Catalysts were prepared in a series of steps, and metal precursor was loaded using ion-exchange procedures. Characterization was done using X-ray diffraction, hydrogen chemisorption, and proton-induced X-ray emission elemental analysis. Catalytic hydrogenation reactions were carried out by processing distillate feedstocks both high (>100 ppm) and low (<10 ppm) in sulfur using a continuous-flow automated microreactor system. Experimental runs were performed to determine the reaction kinetics and Arrhenius parameters as a means of evaluating and comparing catalyst performance. Significant differences in catalyst activity were found. The Pt/Y-zeolite-alumina catalyst showed a much superior hydrogenation performance under conditions of high sulfur content. The extent of cracking and ring opening was also evaluated and was shown to be minimal under the operating conditions employed.

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

    SciTech Connect (OSTI)

    Brock, Billy C.

    2010-02-01T23:59:59.000Z

    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.

  17. New industrial heat pump applications to a synthetic rubber production, Louisville, Kentucky

    SciTech Connect (OSTI)

    Not Available

    1991-01-01T23:59:59.000Z

    The site selected for this study is the American Synthetic Rubber Corporation's polybutadiene plant in Louisville, Kentucky. The objective of this study is to further identify the energy savings potential through advanced heat pumps and other energy conservation methods developed in the context of pinch technology. The process studied involves a solution polymerization of butadiene monomer in the presence of toluene, which acts as a solvent. The results indicate that there is an excellent prospect for heat integration and heat pump application. The heat integration option requires an investment of about 8900 sq. ft. in additional area, to save about one third of the present steam consumption. Two process streams were identified for potential heat pump application. One of them is the combined overhead vapor stream from the stripping section, composed of steam and toluene mixture. The other stream is the overhead vapor from the concentration section, composed mainly of toluene. Economic analysis were performed, both for closed cycle and semi open cycle heat pumps. The potential for semi-open cycle (MVR) hear pumps looks extremely good. 15 figs., 11 tabs.

  18. A grid of synthetic ionizing spectra for very hot compact stars from NLTE model atmospheres

    E-Print Network [OSTI]

    Thomas Rauch

    2003-03-20T23:59:59.000Z

    The precise analysis of properties of planetary nebulae is strongly dependent on good models for the stellar ionizing spectrum. Observations in the UV - X-ray wavelength range as well as NLTE model atmosphere calculations of spectra of their exciting stars have shown that neither blackbody fluxes nor "standard" NLTE atmosphere models which are composed out of hydrogen and helium only are good approximations. Strong differences between synthetic spectra from these compared to observed spectra at energies higher than 54 eV (He II ground state) can be ascribed to the neglect of metal-line blanketing. Realistic modeling of the emergent fluxes of hot stars in the UV - X-ray wavelength range requires metal-line blanketed NLTE model atmospheres which include all elements from hydrogen up to the iron-group. For this purpose, we present a grid (solar and halo abundance ratios) of metal-line blanketed NLTE model atmosphere fluxes which covers the parameter range of central stars of planetary nebulae.

  19. 3D synthetic aperture PIV measurements from artificial vibrating vocal folds

    E-Print Network [OSTI]

    Daily, Jesse; Belden, Jesse; Thomson, Scott; Truscott, Tadd

    2011-01-01T23:59:59.000Z

    During speech, air from the lungs is forced past the vocal folds which vibrate, producing sound. A pulsatile jet of air is formed downstream of the vibrating folds which interacts with the various structures in the airway. Currently, it is postulated that the way this jet interacts with the downstream structures in the airway directly affects the quality of human speech. In order to better understand this jet, it is desirable to visualize the jet in three dimensions. We present the results of a method that reconstructs the three dimensional velocity field using Synthetic aperture PIV (SAPIV) \\cite{Belden:2010}. SAPIV uses an array of high-speed cameras to artificially create a single camera with a variable focal length. This is accomplished by overlapping the images from the array to create a "focal stack". As the images are increasingly overlapped, more distant image planes come into focus. 3D PIV is then performed on the "refocused" focal stack to reconstruct the flow field in three dimensions. SAPIV has th...

  20. 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

    2012-03-01T23:59:59.000Z

    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.

  1. 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.

    1999-05-27T23:59:59.000Z

    (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.

  2. Detection and speciation of transuranium elements in synthetic groundwater via pulsed-laser excitation

    SciTech Connect (OSTI)

    Beitz, J.V.; Bowers, D.L.; Doxtader, M.M.; Maroni, V.A.; Reed, D.T.

    1987-01-01T23:59:59.000Z

    High sensitivity methods for detection and speciation of complexed transuranium ions in synthetic basalt groundwater, and simplified analogs, are being developed which exploit advances in pulsed laser technology. The first demonstration of high sensitivity detection of a transuranium ion at temperatures significantly above ambient is reported using laser photoacoustic spectroscopy (LPAS). The existence of enhanced LPAS signal amplitudes with increasing temperature in aqueous solution is confirmed in LPAS spectra recorded at 30 C, 60 C and 90 C using micromolar concentrations of /sup 241/Am/sup 3+/. A detection sensitivity of 8.5 parts per trillion (weight basis) of /sup 244/Cm/sup 3+/ in a simplified basalt groundwater at 22 C has been achieved using laser-induced fluorescence spectroscopy (LIF). This corresponds to 1 x 10/sup 8/ Cm/sup 3+/ ions in the laser beam. The detailed spectroscopic information obtained by this method points to the existence of previously unobserved Cm/sup 3+/ species. A brief assessment of the applicability and sensitivity of LPAS and LIF methods for speciating transuranium ions in near-neutral pH aqueous solution, such as the groundwater expected in a basalt nuclear waste repository, is presented. 27 refs., 3 figs.

  3. Old Friends Issue 1

    E-Print Network [OSTI]

    Multiple Contributors

    1994-01-01T23:59:59.000Z

    -OLD FR1ENDS Th e Explanation~ l Actions speak louder t han words--an old cliche which is ~till true. After bemoaning the loss o f t he circuit , and realizing that as f olks who occasional ly p r oduce %ines were straddling both sides... lund . I was going to list them allan a .ponsor page--but .0 m.ny t old me t hey didn ' t want m. to, th.t I d.cided j u.t to thank them each p.r.onally .nd m.k. sure they got two copies, same •• th. contributor.' So THANK YOU to ev.ryone who...

  4. Environmentally friendly animal litter

    DOE Patents [OSTI]

    Chett, Boxley; McKelvie, Jessica

    2013-08-20T23:59:59.000Z

    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.

  5. Environmentally Friendly Coolant System

    SciTech Connect (OSTI)

    David Jackson Principal Investigator

    2011-11-08T23:59:59.000Z

    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.

  6. Kid-Friendly TODs

    E-Print Network [OSTI]

    Cervero, Robert; Sullivan, Cathleen

    2010-01-01T23:59:59.000Z

    Studies show the carbon footprint of residents is also lowerhave shrunk the carbon footprint of Kogarah Town Squareshrink a city’s carbon footprint, cap-and-trade programs

  7. CAHNRS Alumni & Friends website

    E-Print Network [OSTI]

    Collins, Gary S.

    , textiles scientist and AMDT chair Karen Leonas is leading a project to develop a biodegradable fabric mulch to replace the expensive, petroleum-based black plastic that so many specialty crop grow- ers currently use

  8. Kid-Friendly TODs

    E-Print Network [OSTI]

    Cervero, Robert; Sullivan, Cathleen

    2010-01-01T23:59:59.000Z

    of Excellence. R efer ences Beatley, Timothy. 2000. GreenNewman, Peter, Timothy Beatley, and Heather Boyer. 2009.their design and architecture (Beatley, 2000). All emphasize

  9. Kid-Friendly TODs

    E-Print Network [OSTI]

    Cervero, Robert; Sullivan, Cathleen

    2010-01-01T23:59:59.000Z

    its ecological design (low- energy buildings, co-generationincluding renewable energy, low-impact building designs, and

  10. Dear Family and friends,

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration wouldDECOMPOSITION OFSupplementalC. L.Deadly Carcinogen Unraveled:biography

  11. Phosphate Tether-Mediated Synthetic Studies- Applications in Natural Products Synthesis.

    E-Print Network [OSTI]

    Jayasinghe, Mudiyanselage; Jayasinghe, Susanthi

    2012-08-31T23:59:59.000Z

    The focus of this dissertation is the utilization of phosphate tether mediated approaches to synthesize bioactive natural products and their analogs in ?n efficient and effective manner. The several salient features, which ...

  12. Predicting candidate genomic sequences that correspond to synthetic functional RNA motifs

    E-Print Network [OSTI]

    Schlick, Tamar

    protocol offers an avenue for expanding natural RNA's functional repertoire. INTRODUCTION RNA has,13), neural net- works (14), graph theory (15,16) and other complementary approaches (17). Unlike proteins

  13. Natural and synthetic rubber coatings for steel: Properties and compositions. (Latest citations from World Surface Coatings abstracts). Published Search

    SciTech Connect (OSTI)

    Not Available

    1994-04-01T23:59:59.000Z

    The bibliography contains citations concerning the application of compositions containing natural and synthetic rubbers to steel. Polyurethane elastomers, chlorinated rubber coatings, and rubber containing acrylic adhesives are among the coatings discussed. Studies of the degradation of rubber coatings applied to steel are included. Bonding properties, adhesion strength, weathering, and anticorrosive properties are discussed. Additional information on anticorrosive coatings may be found in other bibliographies. (Contains a minimum of 180 citations and includes a subject term index and title list.)

  14. Natural and synthetic rubber coatings for steel: Properties and compositions. (Latest citations from World Surface Coatings abstracts). Published Search

    SciTech Connect (OSTI)

    NONE

    1995-07-01T23:59:59.000Z

    The bibliography contains citations concerning the development and fabrication of natural and synthetic rubbers for use in coatings on steel. Coating materials include polyurethane elastomers, chlorinated rubber, and rubber-containing acrylic adhesives. References to bonding properties, mechanical strength, steel-wire reinforced rubbers, anticorrosion, and weather-resistance are covered. (Contains 50-250 citations and includes a subject term index and title list.)

  15. Natural and synthetic rubber coatings for steel: Properties and compositions. (Latest citations from World Surface Coatings Abstracts). Published Search

    SciTech Connect (OSTI)

    Not Available

    1993-03-01T23:59:59.000Z

    The bibliography contains citations concerning the application of compositions containing natural and synthetic rubbers to steel. Polyurethane elastomers, chlorinated rubber coatings, and rubber containing acrylic adhesives are among the coatings discussed. Studies of the degradation of rubber coatings applied to steel are included. Bonding properties, adhesion strength, weathering, and anticorrosive properties are discussed. Additional information on anticorrosive coatings may be found in other bibliographies. (Contains a minimum of 147 citations and includes a subject term index and title list.)

  16. Towards a library of synthetic galaxy spectra and preliminary results of classification and parametrization of unresolved galaxies for Gaia

    E-Print Network [OSTI]

    P. Tsalmantza; M. Kontizas; C. A. L. Bailer-Jones; B. Rocca-Volmerange; R. Korakitis; E. Kontizas; E. Livanou; A. Dapergolas; I. Bellas-Velidis; A. Vallenari; M. Fioc

    2007-06-14T23:59:59.000Z

    Aims:The Gaia astrometric survey mission will, as a consequence of its scanning law, obtain low resolution optical (330-1000 nm) spectrophotometry of several million unresolved galaxies brighter than V=22. We present the first steps in a project to design and implement a classification system for these data. The goal is both to determine morphological classes and to estimate intrinsic astrophysical parameters via synthetic templates. Here we describe (1) a new library of synthetic galaxy spectra, and (2) first results of classification and parametrization experiments using simulated Gaia spectrophotometry of this library. Methods:We have created a large grid of synthetic galaxy spectra using the PEGASE.2 code, which is based on galaxy evolution models that take into account metallicity evolution, extinction correction, emission lines (with stellar spectra based on the BaSeL library). Our classification and regression models are Support Vector Machines (SVMs), which are kernel-based nonlinear estimators. Results:We produce a basic library of about 4000 zero redshift galaxy spectra covering the main Hubble types over wavelength range 250 to 1050 nm at a sampling of 1 nm or less. It is computed on a regular grid of four key astrophysical parameters for each type and for intermediate random values of the same parameters. An extended library reproduces this at a series of redshifts. Initial results from the SVM classifiers and parametrizers are promising, indicating that Hubble types can be reliably predicted and several parameters estimated with low bias and variance. Comparing the colours of our synthetic library with Sloan Digital Sky Survey (SDSS) spectra we find good agreement over the full range of Hubble types and parameters.

  17. C H A P T E R F O U R T E E N Microfluidics for Synthetic Biology

    E-Print Network [OSTI]

    Hasty, Jeff

    C H A P T E R F O U R T E E N Microfluidics for Synthetic Biology: From Design to Execution M. S of a microfluidic chip 298 1.2. A parallel DAW device 322 1.3. Cell tracking 326 1.4. DAW hardware and software 334. coli 358 3.2. Method to set up a MDAW microfluidic experiment 364 Acknowledgments 371 References 371

  18. Synthetic Strategies Toward Tetrahydrofurans Involving Double Diastereoselective Nucleophile-Promoted Aldol-Lactonizations and Subsequent Applications to Bioactive Natural Products

    E-Print Network [OSTI]

    Arendt, Kevin M.

    2011-08-08T23:59:59.000Z

    and Chiralpak IA columns. Infrared spectra were obtained as thin film on NaCl plates on a FTIR spectrometer. Vibrational frequencies are expressed in cm-1. Mass spectra were obtained at the Laboratory for Biological Mass Spectrometry at Texas A... Submitted to the Office of Undergraduate Research Texas A&M University in partial fulfillment of the requirements for the designation as UNDERGRADUATE RESEARCH SCHOLAR A Senior Scholars Thesis by KEVIN MICHAEL ARENDT SYNTHETIC STRATEGIES...

  19. Improving low temperature properties of synthetic diesel fuels derived from oil shale. Alternative fuels utilization program

    SciTech Connect (OSTI)

    Frankenfeld, J.W.; Taylor, W.F.

    1980-11-01T23:59:59.000Z

    The ability of additives to improve the cold flow properties of shale oil derived fuels boiling in the diesel fuel range was evaluated. Because a commercial shale oil industry did not exist to provide actual samples of finished fuels, a representative range of hydroprocessed shale oil fractions was prepared for use in the additive testing work. Crude oil shale from Occidental Shale Company was fractionated to give three liquids in the diesel fuel boiling range. The initial boiling point in each case was 325/sup 0/F (163/sup 0/C). The final boiling points were 640/sup 0/F (338/sup 0/C), 670/sup 0/F (354/sup 0/C) and 700/sup 0/F (371/sup 0/F). Each fraction was hydrotreated to three different severities (800, 1200 and 1500 psi total pressure) over a Shell 324 nickel molybdate on alumina catalyst at 710 to 750/sup 0/F to afford 9 different model fuels. A variety of commercial and experimental additives were evaluated as cold flow improvers in the model fuels at treat levels of 0.04 to 0.4 wt %. Both the standard pour point test (ASTM D97) and a more severe low temperature flow test (LTFT) were employed. Reductions in pour points of up to 70/sup 0/F and improvements in LTFT temperatures up to 16/sup 0/F were achieved. It is concluded that flow improver additives can play an important role in improving the cold flow properties of future synthetic fuels of the diesel type derived from oil shale.

  20. POD of ultrasonic detection of synthetic hard alpha inclusions in titanium aircraft engine forgings

    SciTech Connect (OSTI)

    Thompson, R. B. [Center for Nondestructive Evaluation and Departments of Materials Science and Aerospace Engineering, Iowa State University, Ames, IA 50011 (United States); Meeker, W. Q. [Center for Nondestructive Evaluation and Department of Statistics, Iowa State University, Ames, IA 50011 (United States); Brasche, L. J. H. [Center for Nondestructive Evaluation, Iowa State University, Ames, IA 50011 (United States)

    2011-06-23T23:59:59.000Z

    The probability of detection (POD) of inspection techniques is a key input to estimating the lives of structural components such as aircraft engines. This paper describes work conducted as a part of the development of POD curves for the ultrasonic detection of synthetic hard alpha (SHA) inclusions in titanium aircraft engine forgings. The sample upon which the POD curves are to be based contains four types of right circular SHAs that have been embedded in a representative titanium forging, as well as a number of flat bottomed holes (FBHs). The SHAs were of two sizes, number 3 and number 5, with each size including seeds with nominal nitrogen concentrations of both 3 and 17 wt. %. The FBHs included sizes of number 1, number 3, and number 5. This discreteness of the data poses a number of challenges to standard processes for determining POD. For example, at each concentration of nitrogen, there are only two sizes, with 10 inspection opportunities each. Fully empirical, standard methodologies such as a circumflex versus a provide less than an ideal framework for such an analysis. For example, there is no way to describe the beam limiting effect whereby the signal no longer increases the flaw grows larger than the beam, one can only determine POD at the two concentration levels present in the block, and confidence bounds tend to be broad because of the limited data available for each case. In this paper, we will describe strategies involving the use of physics-based models to overcome these difficulties by allowing the data from all reflectors to be analyzed by a single statistical model. Included will be a discussion of the development of the physics-based model, its comparison to the experimental data (obtained at multiple sites with multiple operators) and its implications regarding the statistical analysis, whose details will be given in a separate article by Li et al. in this volume.

  1. The electrorheology of suspensions consisting of Na-Fluorohectorite synthetic clay particles in silicon oil

    E-Print Network [OSTI]

    Y. Méheust; K. P. S. Parmar; B. Schjelderupsen; J. O. Fossum

    2010-02-01T23:59:59.000Z

    Under application of an electric field greater than a triggering electric field $E_c \\sim 0.4$ kV/mm, suspensions obtained by dispersing particles of the synthetic clay fluoro-hectorite in a silicon oil, aggregate into chain- and/or column-like structures parallel to the applied electric field. This micro-structuring results in a transition in the suspensions' rheological behavior, from a Newtonian-like behavior to a shear-thinning rheology with a significant yield stress. This behavior is studied as a function of particle volume fraction and strength of the applied electric field, $E$. The steady shear flow curves are observed to scale onto a master curve with respect to $E$, in a manner similar to what was recently found for suspensions of laponite clay [42]. In the case of Na-fluorohectorite, the corresponding dynamic yield stress is demonstrated to scale with respect to $E$ as a power law with an exponent $\\alpha \\sim 1.93$, while the static yield stress inferred from constant shear stress tests exhibits a similar behavior with $\\alpha \\sim 1.58$. The suspensions are also studied in the framework of thixotropic fluids: the bifurcation in the rheology behavior when letting the system flow and evolve under a constant applied shear stress is characterized, and a bifurcation yield stress, estimated as the applied shear stress at which viscosity bifurcation occurs, is measured to scale as $E^\\alpha$ with $\\alpha \\sim 0.5$ to 0.6. All measured yield stresses increase with the particle fraction $\\Phi$ of the suspension. For the static yield stress, a scaling law $\\Phi^\\beta$, with $\\beta = 0.54$, is found. The results are found to be reasonably consistent with each other. Their similarities with-, and discrepancies to- results obtained on laponite-oil suspensions are discussed.

  2. 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.

  3. 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

    2013-03-01T23:59:59.000Z

    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.

  4. Title: Time to scale-up. Standfirst: The construction of modular and scalable synthetic gene networks is now a goal within

    E-Print Network [OSTI]

    Babu, M. Madan

    Title: Time to scale-up. Standfirst: The construction of modular and scalable synthetic gene demonstrated. Next, they scaled up the system by constructing a circuit with three inputs to execute a pre

  5. The C. elegans class A synthetic multivulva genes inhibit ectopic RAS-mediated vulval development by tightly restricting expression of lin-3 EGF

    E-Print Network [OSTI]

    Saffer, Adam M

    2011-01-01T23:59:59.000Z

    The class A and B synthetic multivulva (synMuv) genes of C. elegans redundantly antagonize an EGF/Ras pathway to prevent ectopic vulval induction. The class B synMuv genes encode many proteins known to remodel chromatin ...

  6. Technical approach document

    SciTech Connect (OSTI)

    Not Available

    1989-12-01T23:59:59.000Z

    The Uranium Mill Tailings Radiation Control Act (UMTRCA) of 1978, Public Law 95-604 (PL95-604), grants the Secretary of Energy the authority and responsibility to perform such actions as are necessary to minimize radiation health hazards and other environmental hazards caused by inactive uranium mill sites. This Technical Approach Document (TAD) describes the general technical approaches and design criteria adopted by the US Department of Energy (DOE) in order to implement remedial action plans (RAPS) and final designs that comply with EPA standards. It does not address the technical approaches necessary for aquifer restoration at processing sites; a guidance document, currently in preparation, will describe aquifer restoration concerns and technical protocols. This document is a second revision to the original document issued in May 1986; the revision has been made in response to changes to the groundwater standards of 40 CFR 192, Subparts A--C, proposed by EPA as draft standards. New sections were added to define the design approaches and designs necessary to comply with the groundwater standards. These new sections are in addition to changes made throughout the document to reflect current procedures, especially in cover design, water resources protection, and alternate site selection; only minor revisions were made to some of the sections. Sections 3.0 is a new section defining the approach taken in the design of disposal cells; Section 4.0 has been revised to include design of vegetated covers; Section 8.0 discusses design approaches necessary for compliance with the groundwater standards; and Section 9.0 is a new section dealing with nonradiological hazardous constituents. 203 refs., 18 figs., 26 tabs.

  7. Study of spatial scaling in braided river patterns using synthetic aperture radar imagery

    E-Print Network [OSTI]

    Foufoula-Georgiou, Efi

    imagery was used to extract braided river patterns such that their spatial scaling characteristics could to build bridges across sections of braided rivers, to harvest the rich mineral deposits left on their bars, determin- istic approach of water flow over a cohesionless bed. Their model reproduced the main spatial

  8. A combined ANP-delphi approach to evaluate sustainable tourism

    SciTech Connect (OSTI)

    Garcia-Melon, Monica, E-mail: mgarciam@dpi.upv.es [INGENIO (CSIC-UPV), Universitat Politecnica de Valencia, Camino de Vera s/n, 46022 Valencia (Spain); Gomez-Navarro, Tomas, E-mail: tgomez@dpi.upv.es [Depto. Proyectos Ingenieria, Universitat Politecnica de Valencia, Camino de Vera s/n 46022 Valencia (Spain); Acuna-Dutra, Silvia, E-mail: sacuna@unime.edu.ve [Universidad Metropolitana de Caracas, Caracas (Venezuela, Bolivarian Republic of)

    2012-04-15T23:59:59.000Z

    The evaluation of sustainable tourism strategies promoted by National Parks (NP) related stakeholders is a key concern for NP managers. To help them in their strategic evaluation procedures, in this paper we propose a methodology based on the Analytic Network Process and a Delphi-type judgment-ensuring procedure. The approach aims at involving stakeholders in a participatory and consensus-building process. The methodology was applied to Los Roques NP in Venezuela. The problem included three sustainable tourism strategies defined by the stakeholders: eco-efficient resorts, eco-friendly leisure activities and ecological transportation systems. Representatives of eight stakeholders participated in the methodology. 13 sustainability criteria were selected. Results provide some important insights into the overall philosophy and underlying participants' conception of what sustainable development of Los Roques NP means. This conception is broadly shared by stakeholders as they coincided in the weights of most of the criteria, which were assigned individually through the questionnaire. It is particularly noteworthy that tourists and environmentalists almost fully match in their assessments of criteria but not of the alternatives. Moreover, there is a great agreement in the final assessment. This suggests that the regular contact among the different stakeholders, i.e. tourists with inhabitants, authorities with environmentalists, tour operators with representatives of the ministry, etc. has led to a common understanding of the opportunities and threats for the NP. They all agreed that the procedure enhances participation and transparency and it is a necessary source of information and support for their decisions.

  9. An Intelligent Systems Approach to Reservoir Characterization

    SciTech Connect (OSTI)

    Shahab D. Mohaghegh; Jaime Toro; Thomas H. Wilson; Emre Artun; Alejandro Sanchez; Sandeep Pyakurel

    2005-08-01T23:59:59.000Z

    Today, the major challenge in reservoir characterization is integrating data coming from different sources in varying scales, in order to obtain an accurate and high-resolution reservoir model. The role of seismic data in this integration is often limited to providing a structural model for the reservoir. Its relatively low resolution usually limits its further use. However, its areal coverage and availability suggest that it has the potential of providing valuable data for more detailed reservoir characterization studies through the process of seismic inversion. In this paper, a novel intelligent seismic inversion methodology is presented to achieve a desirable correlation between relatively low-frequency seismic signals, and the much higher frequency wireline-log data. Vertical seismic profile (VSP) is used as an intermediate step between the well logs and the surface seismic. A synthetic seismic model is developed by using real data and seismic interpretation. In the example presented here, the model represents the Atoka and Morrow formations, and the overlying Pennsylvanian sequence of the Buffalo Valley Field in New Mexico. Generalized regression neural network (GRNN) is used to build two independent correlation models between; (1) Surface seismic and VSP, (2) VSP and well logs. After generating virtual VSP's from the surface seismic, well logs are predicted by using the correlation between VSP and well logs. The values of the density log, which is a surrogate for reservoir porosity, are predicted for each seismic trace through the seismic line with a classification approach having a correlation coefficient of 0.81. The same methodology is then applied to real data taken from the Buffalo Valley Field, to predict inter-well gamma ray and neutron porosity logs through the seismic line of interest. The same procedure can be applied to a complete 3D seismic block to obtain 3D distributions of reservoir properties with less uncertainty than the geostatistical estimation methods. The intelligent seismic inversion method should help to increase the success of drilling new wells during field development.

  10. Current Approaches Acknowledgements

    E-Print Network [OSTI]

    Auerbach, Scott M.

    on developing regulations for agricultural antibiotic use by quantifying biomagnification. Tests regarding, University of Massachusetts, Amherst Amherst, MA 01003 The primary approach to fighting antibiotic resistance is the regulation of sub-therapeutic antibiotic use in agriculture. For example, the antibiotic fluoroquinolone

  11. Effect of degree of synthetic lightweight aggregate pre-wetting on the freeze-thaw durability of lightweight concrete

    E-Print Network [OSTI]

    Kanabar, C. N

    1966-01-01T23:59:59.000Z

    an important role in frost resistance of concrete. The moist curing period of the concrete has been found to be of significant importance for the frost resistance in fresh water. But in sea water, the moist curing period has only a small effect on freeze-chaw...EFFECT OF DEGREE OF SYNTHETIC LIGHTWEIGHT AGGREGATE PRE-WETTING ON THE FREEZE-THAW DURABILITY OF LIGHTWEIGHT CONCRETE A Thesis By CHANDRAKANT N. KANABAR Submitted to the Graduate College of the Texas A&M University in partial fulfillment...

  12. An assessment of the usefulness of 5 new synthetic pyrethroids in IPM programs for tobacco budworm control in cotton

    E-Print Network [OSTI]

    Rajakulendran, Sinnappu Victor

    1981-01-01T23:59:59.000Z

    New Synthetic Pyrethroids in IPM Programs for Tobacco Budworm Control in Cotton. (Mlay 1981) Sinnappu Victor Rajakulendran, B. Sc. (Agri. ) University of Sri Lanka Chairman of Advisory Committee: Dr. F. W. Plapp, Jr. Toxicity measurements were...-methyl ethyl) benzene acetate) and fluvalinate. Toxicity was de- termined to larvae of the tobacco budworm Heliothis (P. ), t d lt 1 *f 't p 't, ~tl t' sonorensis (Carlson), and to larvae of its predator, C~t * ddt pl ). Al*, ll d' f t t d as a...

  13. An assessment of the usefulness of 5 new synthetic pyrethroids in IPM programs for tobacco budworm control in cotton 

    E-Print Network [OSTI]

    Rajakulendran, Sinnappu Victor

    1981-01-01T23:59:59.000Z

    New Synthetic Pyrethroids in IPM Programs for Tobacco Budworm Control in Cotton. (Mlay 1981) Sinnappu Victor Rajakulendran, B. Sc. (Agri. ) University of Sri Lanka Chairman of Advisory Committee: Dr. F. W. Plapp, Jr. Toxicity measurements were...-methyl ethyl) benzene acetate) and fluvalinate. Toxicity was de- termined to larvae of the tobacco budworm Heliothis (P. ), t d lt 1 *f 't p 't, ~tl t' sonorensis (Carlson), and to larvae of its predator, C~t * ddt pl ). Al*, ll d' f t t d as a...

  14. The Business Logic of Sustainability: Merging Economic Growth with Social Responsibility--The explosion of organic and eco-friendly products on retail store shelves and in our daily lives is more

    E-Print Network [OSTI]

    California at Davis, University of

    The Business Logic of Sustainability: Merging Economic Growth with Social Responsibility-- The explosion of organic and eco-friendly products on retail store shelves and in our daily lives is more than and sustainability marketing present unique challenges, not the least of which is the lack of standards

  15. 1/28/09 3:40 PMBloomberg Printer-Friendly Page Page 1 of 2http://www.bloomberg.com/apps/news?pid=20670001&refer=science&sid=atoTqDydLoWA

    E-Print Network [OSTI]

    1/28/09 3:40 PMBloomberg Printer-Friendly Page Page 1 of 2http://www.bloomberg.com/apps/news?pidhttp://www.bloomberg.com/apps/news?pid=20670001&refer=science&sid=atoTqDydLoWA list of genes that may

  16. Wolverine Caucus ~ Office of Government Relations ~ Alumni Association University of Michigan Alumni and friends who work in and around the State Capitol are welcome to participate in the Wolverine Caucus. Our mission is to

    E-Print Network [OSTI]

    Michigan, University of

    Wolverine Caucus ~ Office of Government Relations ~ Alumni Association University of Michigan Caucus. Our mission is to provide diverse forums at which University of Michigan friends can meet one://www.facebook.com/pages/Wolverine-Caucus/157511511865 Twitter: https://twitter.com/UMLansing University of Michigan Wolverine Caucus Forums will be held

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

    SciTech Connect (OSTI)

    Rohatgi, Ngoc Dung T.

    2001-08-08T23:59:59.000Z

    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.

  18. An Adaptive Particle Filtering Approach to Tracking Modes in a Varying Shallow Ocean Environment

    SciTech Connect (OSTI)

    Candy, J V

    2011-03-22T23:59:59.000Z

    The shallow ocean environment is ever changing mostly due to temperature variations in its upper layers (< 100m) directly affecting sound propagation throughout. The need to develop processors that are capable of tracking these changes implies a stochastic as well as an 'adaptive' design. The stochastic requirement follows directly from the multitude of variations created by uncertain parameters and noise. Some work has been accomplished in this area, but the stochastic nature was constrained to Gaussian uncertainties. It has been clear for a long time that this constraint was not particularly realistic leading a Bayesian approach that enables the representation of any uncertainty distribution. Sequential Bayesian techniques enable a class of processors capable of performing in an uncertain, nonstationary (varying statistics), non-Gaussian, variable shallow ocean. In this paper adaptive processors providing enhanced signals for acoustic hydrophonemeasurements on a vertical array as well as enhanced modal function estimates are developed. Synthetic data is provided to demonstrate that this approach is viable.

  19. Evaluation of the dosimetric properties of a synthetic single crystal diamond detector in high energy clinical proton beams

    SciTech Connect (OSTI)

    Mandapaka, A. K.; Ghebremedhin, A.; Patyal, B. [Department of Radiation Medicine, Loma Linda University Medical Center, 11234 Anderson Street, Loma Linda, California 92354 (United States)] [Department of Radiation Medicine, Loma Linda University Medical Center, 11234 Anderson Street, Loma Linda, California 92354 (United States); Marinelli, Marco; Prestopino, G.; Verona, C.; Verona-Rinati, G. [INFN–Dipartimento di Ingegneria Industriale, Università di Roma ‘Tor Vergata’, Via del Politecnico 1, 00133 Roma (Italy)] [INFN–Dipartimento di Ingegneria Industriale, Università di Roma ‘Tor Vergata’, Via del Politecnico 1, 00133 Roma (Italy)

    2013-12-15T23:59:59.000Z

    Purpose: To investigate the dosimetric properties of a synthetic single crystal diamond Schottky diode for accurate relative dose measurements in large and small field high-energy clinical proton beams.Methods: The dosimetric properties of a synthetic single crystal diamond detector were assessed by comparison with a reference Markus parallel plate ionization chamber, an Exradin A16 microionization chamber, and Exradin T1a ion chamber. The diamond detector was operated at zero bias voltage at all times. Comparative dose distribution measurements were performed by means of Fractional depth dose curves and lateral beam profiles in clinical proton beams of energies 155 and 250 MeV for a 14 cm square cerrobend aperture and 126 MeV for 3, 2, and 1 cm diameter circular brass collimators. ICRU Report No. 78 recommended beam parameters were used to compare fractional depth dose curves and beam profiles obtained using the diamond detector and the reference ionization chamber. Warm-up/stability of the detector response and linearity with dose were evaluated in a 250 MeV proton beam and dose rate dependence was evaluated in a 126 MeV proton beam. Stem effect and the azimuthal angle dependence of the diode response were also evaluated.Results: A maximum deviation in diamond detector signal from the average reading of less than 0.5% was found during the warm-up irradiation procedure. The detector response showed a good linear behavior as a function of dose with observed deviations below 0.5% over a dose range from 50 to 500 cGy. The detector response was dose rate independent, with deviations below 0.5% in the investigated dose rates ranging from 85 to 300 cGy/min. Stem effect and azimuthal angle dependence of the diode signal were within 0.5%. Fractional depth dose curves and lateral beam profiles obtained with the diamond detector were in good agreement with those measured using reference dosimeters.Conclusions: The observed dosimetric properties of the synthetic single crystal diamond detector indicate that its behavior is proton energy independent and dose rate independent in the investigated energy and dose rate range and it is suitable for accurate relative dosimetric measurements in large as well as in small field high energy clinical proton beams.

  20. An environmental approach

    SciTech Connect (OSTI)

    Geerling, C.

    1996-11-01T23:59:59.000Z

    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.