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Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
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1

Belowground Carbon Cycling Processes at the Molecular Scale: An EMSL Science Theme Advisory Panel Workshop  

SciTech Connect (OSTI)

As part of the Belowground Carbon Cycling Processes at the Molecular Scale workshop, an EMSL Science Theme Advisory Panel meeting held in February 2013, attendees discussed critical biogeochemical processes that regulate carbon cycling in soil. The meeting attendees determined that as a national scientific user facility, EMSL can provide the tools and expertise needed to elucidate the molecular foundation that underlies mechanistic descriptions of biogeochemical processes that control carbon allocation and fluxes at the terrestrial/atmospheric interface in landscape and regional climate models. Consequently, the workshop's goal was to identify the science gaps that hinder either development of mechanistic description of critical processes or their accurate representation in climate models. In part, this report offers recommendations for future EMSL activities in this research area. The workshop was co-chaired by Dr. Nancy Hess (EMSL) and Dr. Gordon Brown (Stanford University).

Hess, Nancy J.; Brown, Gordon E.; Plata, Charity

2014-02-21T23:59:59.000Z

2

Dynamic Conductance of Carbon Nanotubes  

Science Journals Connector (OSTI)

The dynamic conductance of carbon nanotubes was investigated using the nonequilibrium Green's function formalism within the context of a tight-binding model. Specifically, we have studied the ac response of tubes of different helicities, both with and without defects, and an electronic heterojunction. Because of the induced displacement currents, the dynamic conductance of the nanotubes differs significantly from the dc conductance displaying both capacitive and inductive responses. The important role of photon-assisted transport through nanotubes is revealed and its implications for experiments discussed.

Christopher Roland; Marco Buongiorno Nardelli; Jian Wang; Hong Guo

2000-03-27T23:59:59.000Z

3

LBA Data Sets Released from Two Science Themes  

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

two data sets from the Land Use and two data sets from the Land Use and Land Cover Change science theme, and one data set from the Carbon Dynamics theme. These science research themes are components of the LBA-ECO Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA). LBA-ECO LC-07 Methane and Carbon Dioxide Emissions from Balbina Reservoir, Brazil. Data set prepared by A. Kemenes, B.R. Forsberg, and J.M. Melack. This data set provides flux measurements of methane (CH4) and carbon dioxide (CO2) from surface waters to the atmosphere, and CH4, CO2, and oxygen (O2) concentrations of surface water, and concentrations measured at several depths of the Balbina Reservoir in the central Amazon Basin, Amazonas, Brazil. The Balbina Reservoir was formed by impounding the Uatuma River in 1987.

4

Carbon dynamics of terrestrial ecosystems on the Tibetan Plateau  

E-Print Network [OSTI]

RESEARCH PAPER Carbon dynamics of terrestrial ecosystems on the Tibetan Plateau during the 20th tundra to evergreen tropics. Its soils are dominated by permafrost and are rich in organic carbon. Its, the carbon dynamics of the Tibetan Plateau have not been well quantified under changes of climate and per

Xiao, Jingfeng

5

Terrestrial Carbon Cycle Dynamics under Recent and Future Climate Change  

Science Journals Connector (OSTI)

The behavior of the terrestrial carbon cycle under historical and future climate change is examined using the University of Victoria Earth System Climate Model, now coupled to a dynamic terrestrial vegetation and global carbon cycle model. When ...

H. Damon Matthews; Andrew J. Weaver; Katrin J. Meissner

2005-05-01T23:59:59.000Z

6

Exciton Dynamics in (6,5) Carbon Nanotubes  

Science Journals Connector (OSTI)

Relaxation dynamics in carbon nanotubes, measured by transient absorption spectroscopy, are shown to exhibit stretched exponential behavior. The power dependence of the zero time delay...

Swan, Anna; Walsh, A G; Schneck, J; Green, A A; Hersam, M; Ziegler, L D

7

Excited State Dynamics of Individual Single-Walled Carbon Nanotubes.  

E-Print Network [OSTI]

??In this work we tried to shed light on issue by excited state dynamics in carbon nanotubes by combining the photoluminescence (PL) spectroscopy with the… (more)

HARUTYUNYAN, HAYK

2009-01-01T23:59:59.000Z

8

The Social Dynamics of Carbon Capture and Storage  

E-Print Network [OSTI]

The Social Dynamics of Carbon Capture and Storage Understanding CCS Representations, Governance studies. He works as a Research Associate at the Scottish Carbon Capture and Storage research centre at the Scottish Carbon Capture and Storage research centre at the University of Edinburgh. His research focuses

9

Hydrogen Raman shifts in carbon nanotubes from molecular dynamics simulation  

E-Print Network [OSTI]

Hydrogen Raman shifts in carbon nanotubes from molecular dynamics simulation S.J.V. Frankland *, D hydrogen in individual single-shell carbon nanotubes and nanotube ropes using a semiclassical model. The calculations predict that isolated hydrogen molecules inside of nanotubes have a Raman frequency that increases

Brenner, Donald W.

10

Reaction Dynamics at a C Atom Dynamics of the Simplest Reaction of a Carbon  

E-Print Network [OSTI]

. They concluded that the exchange channel proceeds through an SN2-type inversion mechanism and suggestedReaction Dynamics at a C Atom Dynamics of the Simplest Reaction of a Carbon Atom in a Tetrahedral Environment** Jon P. Camden, Hans A. Bechtel, and Richard N. Zare* Reactions occurring at a carbon center

Zare, Richard N.

11

Dynamic Restructuring Of Solid Catalyst Cluster During Carbon Nanotube CVD  

E-Print Network [OSTI]

Dynamic Restructuring Of Solid Catalyst Cluster During Carbon Nanotube CVD Stephan Hofmann1 , Renu, University of Cambridge, Cambridge, United Kingdom. It is commonly assumed that the catalyst metal forms a liquid intermediate and that bulk catalyst effects dominate CNT growth dynamics. Calculations of size

Dunin-Borkowski, Rafal E.

12

AVESTAR® - Oxy-Coal Carbon Capture (OCCC) Dynamic Simulator  

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

Oxy-Coal Carbon Capture (OCCC) Dynamic Simulator Oxy-Coal Carbon Capture (OCCC) Dynamic Simulator FutureGen 2.0 is a first-of-its-kind, near-zero emissions coal-fueled power plant using oxy-combustion technology to capture the plant's carbon emissions. To help meet the Nation's ever growing demand for clean energy, the FutureGen Industrial Alliance (Alliance) was formed to test and commercialize advanced coal-based systems fully integrated with carbon capture and geologic storage technologies. In cooperation with the U.S. Department of Energy (DOE), the Alliance and its project partners AirLiquide and Babcock & Wilcox, will upgrade an existing power plant in Meredosia, Illinois with oxy-coal carbon capture (OCCC) technology to capture and permanantly store approximately 1.0 million tonnes of CO2 each year.

13

Dynamics of carbon sequestration in a coastal wetland using radiocarbon measurements  

E-Print Network [OSTI]

Dynamics of carbon sequestration in a coastal wetland using radiocarbon measurements Yonghoon Choi1. Wang (2004), Dynamics of carbon sequestration in a coastal wetland using radiocarbon measurements carbon cycle. However, the dynamics of carbon (C) cycling in coastal wetlands and its response to sea

Wang, Yang

14

Threshold Dynamics in Soil Carbon Storage for Bioenergy Crops  

Science Journals Connector (OSTI)

Threshold Dynamics in Soil Carbon Storage for Bioenergy Crops ... Because of increasing demands for bioenergy, a considerable amount of land in the midwestern United States could be devoted to the cultivation of second-generation bioenergy crops, such as switchgrass and miscanthus. ... The foliar carbon/nitrogen ratio (C/N) in these bioenergy crops at harvest is significantly higher than the ratios in replaced crops, such as corn or soybean. ...

Dong K. Woo; Juan C. Quijano; Praveen Kumar; Sayo Chaoka; Carl J. Bernacchi

2014-09-10T23:59:59.000Z

15

Entropy-driven structure and dynamics in carbon nanocrystallites  

SciTech Connect (OSTI)

New carbon composite materials are being developed that contain carbon nanocrystallites in the range of 5 17 A in radius dispersed within an amorphous carbon matrix. Evaluating the applicability of these materials for use in battery electrodes requires a molecular-level understanding of the thermodynamic, structural, and dynamic properties of the nanocrystallites. Herein, molecular dynamics simulations reveal the molecular-level mechanisms for such experimental observations as the increased spacing between carbon planes in nanocrystallites as a function of decreasing crystallite size. As the width of this spacing impacts Li-ion capacity, an explanation of the origin of this distance is relevant to understanding anode performance. It is thus shown that the structural configuration of these crystallites is a function of entropy. The magnitude of out-of-plane ripples, binding energy between layers, and frequency of characteristic planar modes are reported over a range of nanocrystallite sizes and temperatures. This fundamental information for layered carbon nanocrystallites may be used to explain enhanced lithium ion diffusion within the carbon composites.

McNutt, Nicholas W [ORNL; Wang, Qifei [ORNL; Rios, Orlando [ORNL; Keffer, David J [ORNL

2014-01-01T23:59:59.000Z

16

Simulating Soil Carbon Dynamics, Erosion and Tillage with EPIC  

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

Simulating Soil Carbon Dynamics, Erosion Simulating Soil Carbon Dynamics, Erosion and Tillage with EPIC 1 R. C. Izaurralde (cesar.izaurralde@pnl.gov; 202-646-5227) Joint Global Change Research Institute (JGCRI) Pacific Northwest Nat'l Lab. - Univ. of Maryland 901 D St. S.W., Suite 900 Washington, DC 20024-2115 J. R. Williams (williams@brc.tamus.edu; 254-774-6124) Texas A&M University Blackland Research Center 808 East Blackland Road Temple, TX 76502 W. B. McGill (mcgill@unbc.ca) Faculty of Science and Management University of Northern British Columbia 3333 University Way, Prince George, BC V2N 4Z9 N. J. Rosenberg (nj.rosenberg@pnl.gov; 202-646-5029) Joint Global Change Research Institute (JGCRI) Pacific Northwest Nat'l Lab. - Univ. of Maryland 901 D St. S.W., Suite 900 Washington, DC 20024-2115

17

Molecular Dynamics Simulation of Hydrogen Storage with Single Walled Carbon Nanotubes Shigeo MARUYAMA1,2  

E-Print Network [OSTI]

Molecular Dynamics Simulation of Hydrogen Storage with Single Walled Carbon Nanotubes * Shigeo-8656 The hydrogen storage mechanism of SWNTs was studied through molecular dynamics simulations. Assuming the simple : Molecular Dynamics Method, Hydrogen Storage, Single Walled Carbon Nanotubes, Lennard-Jones, Adsorption

Maruyama, Shigeo

18

Manakin Themes: customizing the look-and-feel of DSpace  

E-Print Network [OSTI]

the result using default settings Install The xmlui.xconf configuration file Theme settings Theme path URL matching rules: regex, handle, or both Theme name Documentation Theme creation tutorial www.di.tamu.edu/projects/xmlui/manakin/resources/ThemeTutorial...

Maslov, Alexey; Green, Cody; Mikeal, Adam; Phillips, Scott; Leggett, John

2007-07-16T23:59:59.000Z

19

Hydrogen-Bonding Structure and Dynamics of Aqueous Carbonate Species from Car?Parrinello Molecular Dynamics Simulations  

Science Journals Connector (OSTI)

A comprehensive Car?Parrinello molecular dynamics (CP-MD) study of aqueous solutions of carbonic acid (H2CO3), bicarbonate (HCO3?), carbonate (CO32?), and carbon dioxide (CO2) provides new quantitative insight into the structural and dynamic aspects of the hydrogen-bonding environments for these important aqueous species and their effects on the structure, H-bonding, and dynamical behavior of the surrounding water molecules. ... The power spectra of the carbonate species were calculated as Fourier transforms of their velocity autocorrelation functions over the 14 ps production trajectories of the CP-MD simulations. ... The first solvation shell of the anion was found to contain between five and six hydrogen bonded water mols., compared to the six to seven waters found in analogous classical studies based on empirical potentials. ...

P. Padma Kumar; Andrey G. Kalinichev; R. James Kirkpatrick

2008-12-24T23:59:59.000Z

20

Finite Element Modelling and Molecular Dynamic Simulations of Carbon nanotubes/ Polymer Composites  

E-Print Network [OSTI]

Modeling of single-walled carbon nanotubes, multi-walled nanotubes and nanotube reinforced polymer composites using both the Finite Element method and the Molecular Dynamic simulation technique is presented. Nanotubes subjected to mechanical loading...

Gaddamanugu, Dhatri

2010-07-14T23:59:59.000Z

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Some dynamics of carbon, nitrogen and phosphorus in the marine shelf environment of the Mississippi Fan  

E-Print Network [OSTI]

SOME DYNAMICS OF CARBON, NITROGEN AND PHOSPHORUS IN THE MARINE SHELF ENVIRONMENT OF THE MISSISSIPPI FAN A Thesis by DANIEL WAYNE ARMSTRONG Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE December 1974 Major Subject: Chemical Oceanography SOME DYNAMICS OF CARBON NITROGEN, AND PHOSPHORUS IN THE MARINE SHELF ENVIRONMENT OF THE MISSISSIPPI FAN A Thesis by DANIEL WAYNE ARMSTRONG Approved as to style...

Armstrong, Daniel Wayne

1974-01-01T23:59:59.000Z

22

Anisotropic decay dynamics of photoexcited aligned carbon nanotube bundles Y. Hashimoto,1,2,  

E-Print Network [OSTI]

, and magnetic proper- ties are under intensive investigations world wide.1 Various types of recent opticalAnisotropic decay dynamics of photoexcited aligned carbon nanotube bundles Y. Hashimoto,1,2, * Y-probe spectroscopy of a film of aligned single- walled carbon nanotube bundles. By taking into account imperfect

Kono, Junichiro

23

Diffusive Dynamics of Water inside Hydrophobic Carbon Micropores Studied by Neutron Spectroscopy and Molecular Dynamics Simulation  

E-Print Network [OSTI]

When water molecules are confined to nanoscale spacings, such as in the nanometer size pores of activated carbon fiber (ACF), their freezing point gets suppressed down to very low temperatures ($\\sim$ 150 K), leading to a metastable liquid state with remarkable physical properties. We have investigated the ambient pressure diffusive dynamics of water in microporous Kynol\\texttrademark ACF-10 (average pore size $\\sim$11.6 {\\AA}, with primarily slit-like pores) from temperature $T=$ 280 K in its stable liquid state down to $T=$ 230 K into the metastable supercooled phase. The observed characteristic relaxation times and diffusion coefficients are found to be respectively higher and lower than those in bulk water, indicating a slowing down of the water mobility with decreasing temperature. The observed temperature-dependent average relaxation time $$ when compared to previous findings indicate that it is the size of the confining pores - not their shape - that primarily affects the dynamics of water for pore sizes larger than 10 {\\AA}. The experimental observations are compared to complementary molecular dynamics simulations of a model system, in which we studied the diffusion of water within the 11.6 {\\AA} gap of two parallel graphene sheets. We find generally a reasonable agreement between the observed and calculated relaxation times at the low momentum transfer $Q$ ($Q\\le 0.9$ \\AA${^{-1}}$). At high $Q$ however, where localized dynamics becomes relevant, this ideal system does not satisfactorily reproduce the measurements. The best agreement is obtained for the diffusion parameter $D$ associated with the hydrogen-site when a representative stretched exponential function, rather than the standard bi-modal exponential model, is used to parameterize the self-correlation function $I(Q,t)$.

S. O. Diallo; L. Vlcek; E. Mamontov; J. K. Keum; Jihua Chen; J. S. Hayes Jr.; A. A. Chialvo

2014-12-15T23:59:59.000Z

24

Catalyst Dynamics during Carbon Nanotube and Si Nanowire CVD S. Hofmann,*  

E-Print Network [OSTI]

Catalyst Dynamics during Carbon Nanotube and Si Nanowire CVD S. Hofmann,* R. Sharma,** R. Blume catalysts and specifically their interface dynamics. We present atomic-scale environmental transmission electron microscopy (ETEM) and in-situ X- ray photoelectron spectroscopy (XPS) of catalyst assisted growth

Dunin-Borkowski, Rafal E.

25

Molecular Dynamics Simulation of Hydrogen Storage with Single Walled Carbon Nanotubes  

E-Print Network [OSTI]

Molecular Dynamics Simulation of Hydrogen Storage with Single Walled Carbon Nanotubes Shigeo MARUYAMA #12;The hydrogen storage mechanism of SWNTs was studied through molecular dynamics simulations,12) Fig. 6 Hydrogen storage inside each SWNT #12;Table 1 Potential parameters between SWNTs Tube d0 [Ã?

Maruyama, Shigeo

26

Litter-Carbon Dynamics: The Importance of Decomposition, Accretion, and Sequestration in Understanding Ecosystem Carbon Cycling.  

E-Print Network [OSTI]

??The atmospheric CO2 concentration has been increasing since the industrial revolution. A proposed mitigation strategy is sequestering carbon (C) in terrestrial ecosystems, either in plant… (more)

Kochsiek, Amy

2010-01-01T23:59:59.000Z

27

A Stochastic Dynamic Game of Carbon Emissions Trading  

Science Journals Connector (OSTI)

This paper proposes a computable stochastic equilibrium model to represent the possible competition between Russia and China on the international market of carbon emissions permits. The model includes a repres...

Alain Haurie; Laurent Viguier

2003-09-01T23:59:59.000Z

28

Accounting for forest carbon pool dynamics in product carbon footprints: Challenges and opportunities  

SciTech Connect (OSTI)

Modification and loss of forests due to natural and anthropogenic disturbance contribute an estimated 20% of annual greenhouse gas (GHG) emissions worldwide. Although forest carbon pool modeling rarely suggests a 'carbon neutral' flux profile, the life cycle assessment community and associated product carbon footprint protocols have struggled to account for the GHG emissions associated with forestry, specifically, and land use generally. Principally, this is due to underdeveloped linkages between life cycle inventory (LCI) modeling for wood and forest carbon modeling for a full range of forest types and harvest practices, as well as a lack of transparency in globalized forest supply chains. In this paper, through a comparative study of U.S. and Chinese coated freesheet paper, we develop the initial foundations for a methodology that rescales IPCC methods from the national to the product level, with reference to the approaches in three international product carbon footprint protocols. Due to differences in geographic origin of the wood fiber, the results for two scenarios are highly divergent. This suggests that both wood LCI models and the protocols need further development to capture the range of spatial and temporal dimensions for supply chains (and the associated land use change and modification) for specific product systems. The paper concludes by outlining opportunities to measure and reduce uncertainty in accounting for net emissions of biogenic carbon from forestland, where timber is harvested for consumer products. - Highlights: Black-Right-Pointing-Pointer Typical life cycle assessment practice for consumer products often excludes significant land use change emissions when estimating carbon footprints. Black-Right-Pointing-Pointer The article provides a methodology to rescale IPCC guidelines for product-level carbon footprints. Black-Right-Pointing-Pointer Life cycle inventories and product carbon footprint protocols need more comprehensive land use-related accounting. Black-Right-Pointing-Pointer Interdisciplinary collaboration linking the LCA and forest carbon modeling communities is necessary.

Newell, Joshua P., E-mail: jpnewell@umich.edu [School of Natural Resources and Environment, University of Michigan, Ann Arbor (United States); Vos, Robert O., E-mail: vos@usc.edu [Spatial Sciences Institute, University of Southern California (United States)

2012-11-15T23:59:59.000Z

29

Dynamics of decadally cycling carbon in subsurface soils  

E-Print Network [OSTI]

dynamics in a California conifer forest, Soil Sci. Soc. Am.in a range of temperate conifer forest soils, Global Change

Koarashi, Jun; Hockaday, William C; Masiello, Caroline A; Trumbore, Susan E

2012-01-01T23:59:59.000Z

30

Measuring in All the Right Places: Themes in International Municipal  

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

Measuring in All the Right Places: Themes in International Municipal Measuring in All the Right Places: Themes in International Municipal Eco-City Index Systems Title Measuring in All the Right Places: Themes in International Municipal Eco-City Index Systems Publication Type Conference Proceedings Year of Publication 2012 Authors Williams, Christopher J., Nan Zhou, Gang He, and Mark D. Levine Conference Name 2012 ACEEE Study on Energy Efficiency in Buildings Date Published 06/12 Publisher the American Council for an Energy-Efficient Economy Conference Location Pacific Grove, California, U.S.A Keywords co2 emissions, eco-city, energy Abstract Over the past 100 years, urban planners have been promoting a variety of new urban forms, called inter alia Sustainable, Green, Low Carbon, Livable, and Eco-cities, to improve the quality of life of citizens and the local and global environment. Numerous indicator systems have been developed to evaluate the implementation of these theories. The popularity of indicator systems is increasing as local and global constituents give greater attention to mitigating and adapting to climate change, environmental damage and resource constraints. However, no two systems are alike. Each system differentially includes, categorizes and prioritizes indicators, making it difficult to define an eco-city and evaluate the status and progress of developments.

31

Assessing Carbon Dynamics in Semiarid Ecosystems: Balancing Potential Gains with Potential Large Rapid Losses  

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

Assessing Carbon Dynamics in Semiarid Ecosystems: Assessing Carbon Dynamics in Semiarid Ecosystems: Balancing Potential Gains With Potential Large Rapid Losses David D. Breshears (daveb@lanl.gov; 505-665-2803) Environmental Dynamics and Spatial Analysis Group (EES-10), Mail Stop J495 Earth and Environmental Sciences Division Los Alamos National Laboratory Los Alamos, NM 87545 Michael H. Ebinger (mhe@lanl.gov, 505-667-4417) Environmental Dynamics and Spatial Analysis Group (EES-10), Mail Stop J495 Earth and Environmental Sciences Division Los Alamos National Laboratory Los Alamos, NM 87545 Pat J. Unkefer (punkefer@lanl.gov, 505-665-2803) Biosciences Division, BS-1 Los Alamos National Laboratory Los Alamos, NM 87545 Craig D. Allen (craig_allen@usgs.gov, 505-672-3861, Ext. 541) U. S. Geological Survey, Midcontinent Ecological Science Center

32

Seven Data Sets Released from LBA Carbon Dynamics and Trace Gas Teams  

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

Data Sets Released from LBA Carbon Dynamics and Trace Gas Teams Data Sets Released from LBA Carbon Dynamics and Trace Gas Teams The ORNL DAAC and the LBA DIS announce the release of four data sets from the Carbon Dynamics teams and three data sets from the Trace Gas and Aerosol Fluxes science teams, components of the LBA-ECO Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA). LBA-ECO CD-02 C and N Isotopes in Leaves and Atmospheric CO2, Amazonas, Brazil . Data set prepared by A.C. de Araujo, J.P.H.B. Ometto, A.J. Dolman, B. Kruijt, M.J. Waterloo and J.R. Ehleringer. This data set reports delta 13C/12C results for leaf tissues and atmospheric carbon dioxide (CO2), delta 15N/14N ratios for leaf tissue, and leaf carbon and nitrogen concentrations along a topographical gradient in old-growth forests near Manaus, Amazonas, Brazil. Also included are coincident

33

APS/123-QED Environmental effects on the carrier dynamics in carbon nanotubes  

E-Print Network [OSTI]

APS/123-QED Environmental effects on the carrier dynamics in carbon nanotubes J. S. Lauret, C nanotubes -obtained by laser ablation- by means of two-color pump-probe experiments. The recombination-conducting nanotubes. Interband and inter-subband relaxation times are about one order of magnitude slower in isolated

34

Highly nonlinear contact interaction and dynamic energy dissipation by forest of carbon nanotubes  

E-Print Network [OSTI]

Highly nonlinear contact interaction and dynamic energy dissipation by forest of carbon nanotubes extracting force­ displacement curves and evaluating dissipated energy by the nanotubes. The contact force 92093-0411 (Received 2 August 2004; accepted 6 October 2004) Mechanical response and energy dissipation

Daraio, Chiara

35

Optimization of stomatal conductance for maximum carbon gain under dynamic soil moisture  

E-Print Network [OSTI]

Optimization of stomatal conductance for maximum carbon gain under dynamic soil moisture Stefano Accepted 26 September 2013 Available online 9 October 2013 Keywords: Optimization Photosynthesis Soil moisture Stomatal conductance Transpiration a b s t r a c t Optimization theories explain a variety

Katul, Gabriel

36

Woodland development and soil carbon and nitrogen dynamics and storage in a subtropical savanna ecosystem  

E-Print Network [OSTI]

succession over the past century to subtropical thorn woodlands dominated by C3 trees/shrubs. To elucidate mechanisms of soil organic carbon (SOC) and soil total N (STN) storage and dynamics in this ecosystem, I measured the mass and isotopic composition...

Liao, Julia Den-Yue

2005-02-17T23:59:59.000Z

37

Simulating Field-Scale Soil Organic Carbon Dynamics Using EPIC  

SciTech Connect (OSTI)

Simulation models integrate our knowledge of soil organic C (SOC) dynamics and are useful tools for evaluating impacts of crop management on soil C sequestration; yet, they require local calibration. Our objectives were to calibrate the Environmental Policy Integrated Climate (EPIC) model, and evaluate its performance for simulating SOC fractions as affected by soil landscape and management. An automated parameter optimization procedure was used to calibrate the model for a site-specific experiment in the Coastal Plain of central Alabama. The ability of EPIC to predict corn (Zea mays L.) and cotton (Gossypium hirsutum L.) yields and SOC dynamics on different soil landscape positions (summit, sideslope and drainageway) during the initial period of conservation tillage adoption (5 years) was evaluated using regression and mean squared deviations. Simulated yield explained 88% of measured yield variation, with greatest disagreement on the sideslope position and highest agreement in the drainageway. Simulations explained approximately 1, 34 and 40% of the total variation in microbial biomass C (MBC), particulate organic C (POC) and total organic C (TOC), respectively. Lowest errors on TOC simulations (0-20 cm) were found on the sideslope and summit. We conclude that the automated parameterization was generally successful, although further work is needed to refine the MBC and POC fractions, and to improve EPIC predictions of SOC dynamics with depth. Overall, EPIC was sensitive to spatial differences in C fractions that resulted from differing soil landscape positions. The model needs additional refinement for accurate simulations of field-scale SOC dynamics affected by short-term management decisions.

Causarano, Hector J.; Shaw, Joey N.; Franzluebbers, A. J.; reeves, D. W.; Raper, Randy L.; Balkcom, Kipling S.; Norfleet, M. L.; Izaurralde, R Cesar

2007-07-01T23:59:59.000Z

38

Chapter 4Chapter 4 Challenge Theme 2.  

E-Print Network [OSTI]

States--the projected results of climate change (Seager and others, 2007)--would further stress water science International Boundary and Water Commission water control structures on the United StatesChapter 4Chapter 4 #12;Challenge Theme 2. Assuring Water Availability and Quality in the 21st

Fleskes, Joe

39

2007 WORK PROGRAMME COOPERATION THEME 5: ENERGY  

E-Print Network [OSTI]

on the proposed hydrogen and fuel cell JTI will have a significant effect on the overall content of this work of contents) #12;3 2007 WORK PROGRAMME COOPERATION THEME 5: ENERGY Objective: Adapting the current fossil-fuel based energy system into a more sustainable one, less dependent of imported fuels, based on a diverse

Meju, Max

40

Laboratory testing of structures under dynamic loads: an introductory review  

Science Journals Connector (OSTI)

...research-article Theme Issue Dynamic testing of structures compiled by M. S. Williams Laboratory testing of structures under dynamic loads: an...introduces and reviews the theme of laboratory testing of structures under dynamic loads. The...

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Soil carbon dynamics under young tropical secondary forests on former pastures—A case study from Panama  

Science Journals Connector (OSTI)

Secondary forests are gaining increased importance in tropical landscapes and have recently been reported to act as potential belowground carbon sinks. While economic interest in the management of secondary forests to mitigate carbon emissions is rising, the dynamics of soil carbon stocks under these ecosystems remain poorly understood. Recent studies report conflicting results concerning soil carbon trends as well as multiple confounding factors (e.g. soil type, topography and land-use history) affecting these trends. In this study, organic carbon stocks were measured in the mineral soil up to 20 cm depth of at 24 active pastures, 5–8-year-old, and 12–15-year-old secondary forest sites on former pastures. Additionally, we estimated carbon stocks under a 100-year-old secondary forest and compared them to those of nearby mature forests. Abiotic conditions in the study area were homogenous, enabling us to isolate the effect of land-use change on soil organic carbon stocks. Contrary to our expectations, soil carbon stocks in the top 10 cm did not change with young secondary forest development. Pasture soils stored 24.8 ± 2.9 Mg ha?1 carbon (mean ± standard error) in the top 10 cm, and no accumulation of soil carbon was apparent during the first 15 years of secondary succession. Soil carbon stocks under 100-year-old secondary forests, averaging 43.0 ± 7.9 Mg ha?1 (mean ± standard error), were clearly higher than those recorded at younger sites and approached levels of soil carbon stocks under mature forests. These data indicate that soil carbon stocks in this region of Panama are not affected by the land-use transition from pasture to young secondary regrowth. However, an increase of soil carbon storage might be possible over a longer period of time. Our results support trends observed in other tropical areas and highlight the importance of environmental conditions such as soil properties rather than land-use transitions on soil carbon dynamics. While our understanding of organic carbon dynamics in tropical soils remains limited, these results underscore the challenges of undertaking short-term reforestation projects with the expectation of increasing soil carbon sequestration.

Luisa Neumann-Cosel; Beate Zimmermann; Jefferson S. Hall; Michiel van Breugel; Helmut Elsenbeer

2011-01-01T23:59:59.000Z

42

Designing a Dynamic Data-Driven Application System for Estimating Real-Time Load of Dissolved Organic Carbon in a River  

Science Journals Connector (OSTI)

Understanding the dynamics of naturally occurring dissolved organic carbon (DOC) in a river is central to estimating surface water quality, aquatic carbon cycling, and global climate change. Currently, determinat...

Ying Ouyang

2012-10-01T23:59:59.000Z

43

Capillary filling with giant liquid/solid slip: dynamics of water uptake by carbon nanotubes  

E-Print Network [OSTI]

This article discusses the way the standard description of capillary filling dynamics has to be modified to account for liquid/solid slip in nanometric pores. It focuses in particular on the case of a large slip length compared to the pore size. It is shown that the liquid viscosity does not play a role, and that the flow is only controlled by the friction coefficient of the liquid at the wall. Moreover in the Washburn regime, the filling velocity does not depend on the tube radius. Finally, molecular dynamics simulations suggest that this standard description fails to describe the early stage of capillary filling of carbon nanotubes by water, since viscous dissipation at the tube entrance must be taken into account.

Laurent Joly

2011-12-06T23:59:59.000Z

44

University of Glasgow Carbon Management Programme Carbon Management Plan working with  

E-Print Network [OSTI]

carbon vision 11 2.3 Strategic themes 12 Targets and objectives 13 3 Emissions Baseline and Projections. Professor Anton Muscatelli, Principal Foreword from the Carbon Trust Cutting carbon emissions as partUniversity of Glasgow Carbon Management Programme Carbon Management Plan working with Page 1 Carbon

Mottram, Nigel

45

Some General Themes in Catalysis at LANL  

SciTech Connect (OSTI)

Some general themes in catalysis at LANL are: (1) Storage and release of energy within chemical bonds (e.g. H{sub 2} storage in and release from covalent bonds, N{sub 2} functionalization, CO{sub 2} functionalization, H{sub 2} oxidation/evolution, O{sub 2} reduction/evolution); (2) Can we control the chemistry of reactive substrates to effect energy relevant transformations in non-traditional media (e.g. can we promote C-C couplings, dehydrations, or hydrogenations in water under relatively mild conditions)? (3) Can we supplant precious metal or rare earth catalysts to effect these transformations, by using earth abundant metals/elements instead? Can we use organocatalysis and circumvent the use of metals completely? (4) Can we improve upon existing rare earth catalyst systems (e.g. in rare earth oxides pertinent to fluid cracking or polymerization) and reduce amounts required for catalytic efficacy? Carbohydrates can be accessed from non-food based biomass sources such as woody residues and switchgrass. After extracted from the plant source, our goal is to upgrade these classes of molecules into useful fuels.

Gordon, John C. [Los Alamos National Laboratory

2012-07-19T23:59:59.000Z

46

Carbon Dynamics in Aquatic Ecosystems in Response to Elevated Atmospheric CO2 and Altered Nutrients Availability  

E-Print Network [OSTI]

. Our results show that elevated CO2 led to enhanced photosynthetic carbon uptake and dissolved organic carbon (DOC) production. DOC occupied larger percentage in total organic carbon production in high CO2 environment. N addition stimulated biomass...

Song, Chao

2011-04-26T23:59:59.000Z

47

Dynamic response of phenolic resin and its carbon-nanotube composites to shock wave loading  

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

We investigate with nonreactive molecular dynamics simulations the dynamic response of phenolic resin and its carbon-nanotube (CNT) composites to shock wave compression. For phenolic resin, our simulations yield shock states in agreement with experiments on similar polymers except the “phase change” observed in experiments, indicating that such phase change is chemical in nature. The elastic–plastic transition is characterized by shear stress relaxation and atomic-level slip, and phenolic resin shows strong strain hardening. Shock loading of the CNT-resin composites is applied parallel or perpendicular to the CNT axis, and the composites demonstrate anisotropy in wave propagation, yield and CNT deformation. The CNTs induce stress concentrations in the composites and may increase the yield strength. Our simulations suggest that the bulk shock response of the composites depends on the volume fraction, length ratio, impact cross-section, and geometry of the CNT components; the short CNTs in current simulations have insignificant effect on the bulk response of resin polymer.

Arman, B. [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States) and Texas A and M Univ., College Station, TX (United States); An, Q. [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States) and California Institute of Technology, Pasedena, CA (United States); Luo, S. N. [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Desai, T. G. [Advanced Cooling Technologies, Inc., Lancaster, PA (United States); Tonks, D. L. [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Cagin, T. [Texas A and M Univ., College Station, TX (United States); Goddard III, W. A. [California Institute of Technology, Pasedena, CA (United States)

2011-01-04T23:59:59.000Z

48

Ewing Symposium in Honor of Taro Takahashi: The controversial aspects of the contemporary [carbon] cycle  

SciTech Connect (OSTI)

This Ewing Symposium in honor of Taro Takahashi's work on the carbon cycle was held at Lamont-Doherty Earth Observatory, Palisades, New York, on October 26-27, 2000. A program and set of abstracts are appended to this report. A summary of the meeting (included in this report) will be published in Global Biogeochemical Cycles. The theme of the symposium was the magnitude and cause of excess carbon storage on the north temperate continents. Disagreement exists on the relative roles of forest regrowth and fertilization by excess fixed nitrogen and carbon dioxide, as well as the distribution of this storage. Phenomena playing important roles include pre-anthropogenic gradients in carbon dioxide, the so-called rectification effect, uptake and release of carbon dioxide by the ocean, soil nitrogen dynamics, atmospheric carbon-13 gradients, and the role of fire.

Broecker, Wallace Smith

2001-12-31T23:59:59.000Z

49

Development of a dynamic simulator for a natural gas combined cycle (NGCC) power plant with post-combustion carbon capture  

SciTech Connect (OSTI)

The AVESTAR Center located at the U.S. Department of Energy’s National Energy Technology Laboratory and West Virginia University is a world-class research and training environment dedicated to using dynamic process simulation as a tool for advancing the safe, efficient and reliable operation of clean energy plants with CO{sub 2} capture. The AVESTAR Center was launched with a high-fidelity dynamic simulator for an Integrated Gasification Combined Cycle (IGCC) power plant with pre-combustion carbon capture. The IGCC dynamic simulator offers full-scope Operator Training Simulator (OTS) Human Machine Interface (HMI) graphics for realistic, real-time control room operation and is integrated with a 3D virtual Immersive Training Simulator (ITS), thus allowing joint control room and field operator training. The IGCC OTS/ITS solution combines a “gasification with CO{sub 2} capture” process simulator with a “combined cycle” power simulator into a single high-performance dynamic simulation framework. This presentation will describe progress on the development of a natural gas combined cycle (NGCC) dynamic simulator based on the syngas-fired combined cycle portion of AVESTAR’s IGCC dynamic simulator. The 574 MW gross NGCC power plant design consisting of two advanced F-class gas turbines, two heat recovery steam generators (HRSGs), and a steam turbine in a multi-shaft 2x2x1 configuration will be reviewed. Plans for integrating a post-combustion carbon capture system will also be discussed.

Liese, E.; Zitney, S.

2012-01-01T23:59:59.000Z

50

16 and Pregnant: The Themes and Portrayals of Teen Pregnancy  

E-Print Network [OSTI]

Numerous studies show that television is a teaching tool and gives us insight into the human experience. This study identifies the narrative themes about and portrayals of teen pregnancy on the MTV reality television show 16 and Pregnant...

Thomas, Laura Ann

2012-05-31T23:59:59.000Z

51

A validated dynamic model of the first marine molten carbonate fuel cell  

Science Journals Connector (OSTI)

In this work we present a modular, dynamic and multi-dimensional model of a molten carbonate fuel cell (MCFC) onboard the offshore supply vessel “Viking Lady” serving as an auxiliary power unit. The model is able to capture detailed thermodynamic, heat transfer and electrochemical reaction phenomena within the fuel cell layers. The model has been calibrated and validated with measured performance data from a prototype installation onboard the vessel. The model is able to capture detailed thermodynamic, heat transfer and electrochemical reaction phenomena within the fuel cell layers. The model has been calibrated and validated with measured performance data from a prototype installation onboard the offshore supply vessel. The calibration process included parameter identification, sensitivity analysis to identify the critical model parameters, and iterative calibration of these to minimize the overall prediction error. The calibrated model has a low prediction error of 4% for the operating range of the cell, exhibiting at the same time a physically sound qualitative behavior in terms of thermodynamic heat transfer and electrochemical phenomena, both on steady-state and transient operation. The developed model is suitable for a wide range of studies covering the aspects of thermal efficiency, performance, operability, safety and endurance/degradation, which are necessary to introduce fuel cells in ships. The aim of this MCFC model is to aid to the introduction, design, concept approval and verification of environmentally friendly marine applications such as fuel cells, in a cost-effective, fast and safe manner.

E. Ovrum; G. Dimopoulos

2012-01-01T23:59:59.000Z

52

Gas dynamic effects on formation of carbon dimers in laser-produced plasmas  

E-Print Network [OSTI]

production, carbon laser-produced plasma (LPP) research was a main focus over the last several years.1

Harilal, S. S.

53

Delayed carbon sequestration and rising carbon prices  

Science Journals Connector (OSTI)

We set out a dynamic model to investigate optimal time paths of emissions, carbon stocks and carbon sequestration by land conversion, allowing for non-instantaneous carbon sequestration. Previous research in a dy...

Alejandro Caparrós

2009-10-01T23:59:59.000Z

54

Vibrational Sum Frequency Spectroscopy and Molecular Dynamics Simulation of the Carbon Tetrachloride-Water and 1,2-Dichloroethane-Water Interfaces  

E-Print Network [OSTI]

and bonding at the carbon tetrachloride-water (CCl4-H2O) and the 1,2-dichloroethane-water (DCE-H2O) liquidVibrational Sum Frequency Spectroscopy and Molecular Dynamics Simulation of the Carbon Tetrachloride-Water and 1,2-Dichloroethane-Water Interfaces Dave S. Walker, Fred G. Moore, and Geraldine L

Richmond, Geraldine L.

55

LBA Data set Released from the Physical Climate Science Theme  

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

Physical Climate Science Research Theme Physical Climate Science Research Theme The ORNL DAAC announces the release of a data set from the Physical Climate (PC-06) Science theme of LBA. LBA-HMET PC-06 ECMWF Modeled Precipitation and Surface Flux, Rondonia, Brazil: 1999. Data set prepared by A.K. Betts and C. Jakob. This data set provides the mean diurnal cycle of precipitation, near-surface thermodynamics, and surface fluxes generated from short-term forecasts from the European Centre for Medium-Range Weather Forecasts (ECMWF) model. The ECMWF model was run for two LBA campaigns conducted in Rondonia, Brazil during January and February of 1999: Wet Season Atmospheric Mesoscale Campaign (WETAMC) and the Tropical Rainfall measuring Mission (TRMM). LBA was an international research initiative under the leadership of

56

Dissolved organic carbon dynamics in anaerobic sediments of the Santa Monica Basin  

E-Print Network [OSTI]

an organic-rich coastal sediment. Geochim. Cosmochim. Actaorganic carbon in sediments from the North Carolinaexchange between deep ocean sediments and sea water. Nature

2013-01-01T23:59:59.000Z

57

Hybrid DFT Functional-Based Static and Molecular Dynamics Studies of Excess Electron in Liquid Ethylene Carbonate  

SciTech Connect (OSTI)

We applied static and dynamic hybrid functional density functional theory (DFT) calculations to study the interactions of one and two excess electrons with ethylene carbonate (EC) liquid and clusters. Optimal structures of (EC){sub n} and (EC){sup ?}{sub n} clusters devoid of Li{sub +} ions, n?=?1–6, were obtained. The excess electron was found to be localized on a single EC in all cases, and the EC dimeric radical anion exhibits a reduced barrier associated with the breaking of the ethylene carbon–oxygen covalent bond compared to EC{sub ?}. In ab initio molecular dynamics (AIMD) simulations of EC{sub ?} solvated in liquid EC, large fluctuations in the carbonyl carbon–oxygen bond lengths were observed. AIMD simulations of a two-electron attack on EC in EC liquid and on Li metal surfaces yielded products similar to those predicted using nonhybrid DFT functionals, except that CO release did not occur for all attempted initial configurations in the liquid state.

Yu, J M; Balbuena, P B; Budzien, J L; Leung, Kevin

2011-01-01T23:59:59.000Z

58

Molecular Dynamics Simulations of Metal Clusters Supported on Fishbone Carbon Nanofibers  

E-Print Network [OSTI]

-exchange fuel cells use carbon to support catalyst metal clusters of up to 5 Ã?.5,6 In particular, carbon with and without hydrogen termination have been considered. Without hydrogen termination, significant differences of the support material. In general, hydrogen termination attenuates the degree of metal-metal bond strain. 1

Goddard III, William A.

59

FINDINGS IN BRIEF THEME: Water, aquaculture and fish  

E-Print Network [OSTI]

FINDINGS IN BRIEF THEME: Water, aquaculture and fish Photo:Jan-ErikJohansson,SLU Sustainable feed for farmed fish Farmed predatory fish (salmon, cod, etc.) need large quantities of feed, which at pre- sent consists of wildcaught marine fish spe- cies that are endangered to varying degrees. SLU researchers have

60

WORKSHOP THEMES The workshop will focus on the following areas  

E-Print Network [OSTI]

, it is also a significant source of greenhouse gas (GHG) emissions. Global CO2 emissions from transportationWORKSHOP THEMES The workshop will focus on the following areas: a) Greenhouse Gas Emissions from related Greenhouse Gas Emissions c) Technological Solutions to Greenhouse Emissions from

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

College of Health and Human Development Faculty Research Themes  

E-Print Network [OSTI]

College of Health and Human Development Faculty Research Themes May 2007 Page 23 of 58 Family and Contextual Influences on Development Rhonda Belue Assistant Professor Health Policy & Administration Email Address: RZB10@PSU.EDU Research Interests Health disparities in families and children, evaluation

Yener, Aylin

62

College of Health and Human Development Faculty Research Themes  

E-Print Network [OSTI]

College of Health and Human Development Faculty Research Themes May 2007 Page 16 of 58 Development and adults who stutter; curriculum reform in undergraduate education. J. Douglas Coatsworth Associate and to prevent mental health and behavioral problems in children and adolescents; resilience. Ann Crouter

Yener, Aylin

63

College of Health and Human Development Faculty Research Themes  

E-Print Network [OSTI]

.EDU Research Interests Health insurance; hospital care for children; use of medical care by the elderlyCollege of Health and Human Development Faculty Research Themes May 2007 Page 2 of 58 Behavior-Genetics in Health and Development Ingrid Blood Professor Communication Sciences & Disorders Email Address: i2b

Yener, Aylin

64

National Chemistry Week Theme: "Candy: The Sweet Side of Chemistry"  

E-Print Network [OSTI]

National Chemistry Week Theme: "Candy: The Sweet Side of Chemistry" Super Science Saturday Saturday-on chemistry and science demonstrations! All students & families are welcome! Fun & educational for all ages! Sponsored by: American Chemical Society LSU Department of Chemistry LSU Athletic Department Free admission

Stephens, Jacqueline

65

Comparison of the Properties of Xenon, Methane, and Carbon Dioxide Hydrates from Equilibrium and Nonequilibrium Molecular Dynamics Simulations  

Science Journals Connector (OSTI)

Comparison of the Properties of Xenon, Methane, and Carbon Dioxide Hydrates from Equilibrium and Nonequilibrium Molecular Dynamics Simulations† ... The VACFs of all three guests in the small cages oscillate between positive and negative values with the oscillation being damped out with increasing time. ... The oscillations are damped much more strongly for CO2 hydrate than for the Xe or methane hydrates, indicating that the coupling between the rattling motions of the encaged guest molecules and the vibrational motions of the host lattice is strongest for CO2 hydrate. ...

H. Jiang; K. D. Jordan

2009-11-11T23:59:59.000Z

66

Characterization of plasma expansion dynamics in a high power diode with a carbon-fiber-aluminum cathode  

SciTech Connect (OSTI)

Thermal plasma expansion is characterised during the operation of a high power diode with an explosive emission carbon-fiber-aluminum cathode driven by a 250?kV, 150?ns accelerating pulse. It is found that a quasi-stationary state of plasma expansion is obtained during the main part of the accelerating pulse and the whole plasma expansion exhibits an “U”-shape velocity evolution. A theoretical model describing the dynamics of plasma expansion is developed, which indicates that the plasma expansion velocity is determined by equilibrium between the diode current density and plasma thermal electron current density.

Ju, J.-C., E-mail: jujinchuan@126.com [College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073 (China); Laboratoire de Physique des Gaz et des Plasmas, CNRS-Université Paris-Sud, Orsay 91405 (France); Liu, L.; Cai, D. [College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073 (China)

2014-06-09T23:59:59.000Z

67

UK Energy Research Centre Demand Reduction Theme, University of Oxford  

E-Print Network [OSTI]

, for 51% of total UK carbon dioxide (CO2) emissions, including carbon equivalent emissions from aircraft, significant reductions must be made in individuals' direct emissions. A policy of Personal Carbon Allowances a free, equal share of permitted emissions ­ their personal carbon allowance; · The allowance would cover

68

ORIGINAL PAPER Long-term black carbon dynamics in cultivated soil  

E-Print Network [OSTI]

the term BC is used to describe the residual product from incomplete combustion of biomass either by land XPS Introduction Black carbon (BC) is a C-rich organic material derived from incomplete combustion

Lehmann, Johannes

69

Biological Interactions and Dynamics  

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

PNNL-20717 Biological Interactions and Dynamics Science Theme Advisory Panel (BID-STAP) May 2011 Report: September 2011 Prepared for the U.S. Department of Energy's Office of...

70

Carbon in detonations  

SciTech Connect (OSTI)

We review three principal results from a five year study of carbon and its properties in detonations and discuss the implications of these results to the behavior of explosives. We first present a new determination of the carbon melt line from release wave velocity measurements in the shocked state. We then outline a colloidal theory of carbon clustering which from diffusion limited coagulation predicts a slow energy release rate for the carbon chemistry. Finally, we show the results from the examination of recovered soot. Here we see support for the colloid theory and find the diamond phase of carbon. The main theme of this paper is that the carbon in detonation products is in the form of a colloidal suspension of carbon clusters which grow through diffusion limited collisions. Even the final state is not bulk graphite or diamond, but is a collection of small, less than 100 /angstrom/A, diamond and graphitic clusters. 23 refs., 4 figs.

Johnson, J.D.

1989-01-01T23:59:59.000Z

71

Influence of Dynamic Land Use and Land Cover Change on Simulated Global Terrestrial Carbon and Nitrogen Cycles, Climate-carbon Cycle Feedbacks, and Interactions with Rising CO2 and Anthropogenic Nitrogen Deposition  

SciTech Connect (OSTI)

Previous work has demonstrated the sensitivity of terrestrial net carbon exchange to disturbance history and land use patterns at the scale of individual sites or regions. Here we show the influence of land use and land cover dynamics over the historical period 1850-present on global-scale carbon, nutrient, water, and energy fluxes. We also explore the spatial and temporal details of interactions among land use and disturbance history, rising atmospheric carbon dioxide consentation, and increasing anthropogenic nitrogen deposition. Our simulations show that these interactions are significant, and that their importance grows over time, expressed as a fraction of the independent forcing terms. We conclude with an analysis of the influence of these interactions on the sign and magnitude of global climate-carbon cycle feedbacks.

Thornton, Peter E [ORNL; Hoffman, Forrest M [ORNL; Hurtt, George C [University of Hew Hampshire

2009-12-01T23:59:59.000Z

72

Wildland fire emissions, carbon, and climate: Seeing the forest and the trees A cross-scale assessment of wildfire and carbon dynamics  

E-Print Network [OSTI]

Wildland fire emissions, carbon, and climate: Seeing the forest and the trees ­ A cross, 59812, USA a r t i c l e i n f o Article history: Available online xxxx Keywords: Carbon Fire Emissions. Measurements of wildfire carbon emissions are thus highly biased by the spatial and temporal scales that bound

Montana, University of

73

Wildland fire emissions, carbon, and climate: Seeing the forest and the trees A cross-scale assessment of wildfire and carbon dynamics  

E-Print Network [OSTI]

Wildland fire emissions, carbon, and climate: Seeing the forest and the trees ­ A cross. Measurements of wildfire carbon emissions are thus highly biased by the spatial and temporal scales that bound.g., vegetation composition and structure, carbon emissions) occur and inter- act. Improved understanding

74

Dynamic molecular structure of plant biomass-derived black carbon (biochar)  

SciTech Connect (OSTI)

Char black carbon (BC), the solid residue of incomplete combustion, is continuously being added to soils and sediments due to natural vegetation fires, anthropogenic pollution, and new strategies for carbon sequestration ('biochar'). Here we present a molecular-level assessment of the physical organization and chemical complexity of biomass-derived chars and, specifically, that of aromatic carbon in char structures. BET-N{sub 2} surface area, X-ray diffraction (XRD), synchrotron-based Near-edge X-ray Absorption Fine Structure (NEXAFS), and Fourier transform infrared (FT-IR) spectroscopy are used to show how two plant materials (wood and grass) undergo analogous, but quantitatively different physical-chemical transitions as charring temperature increases from 100 to 700 C. These changes suggest the existence of four distinct categories of char consisting of a unique mixture of chemical phases and physical states: (i) in transition chars the crystalline character of the precursor materials is preserved, (ii) in amorphous chars the heat-altered molecules and incipient aromatic polycondensates are randomly mixed, (iii) composite chars consist of poorly ordered graphene stacks embedded in amorphous phases, and (iv) turbostratic chars are dominated by disordered graphitic crystallites. The molecular variations among the different char categories translate into differences in their ability to persist in the environment and function as environmental sorbents.

Keiluweit, M.; Nico, P.S.; Johnson, M.G.; Kleber, M.

2009-11-15T23:59:59.000Z

75

J. Phys. Chem. 1994, 98, 11213-11219 11213 Vibrational Dynamics of Carbon Monoxide at the Active Site of Myoglobin: Picosecond  

E-Print Network [OSTI]

J. Phys. Chem. 1994, 98, 11213-11219 11213 Vibrational Dynamics of Carbon Monoxide at the Active Physics Laboratory, Stanford University, Stanford, Califomia 94305 Received: April 27, 1994: In Final Form at Urbana-Champaign. Deparlment of Chemistry, Sfanford University. Hansen ExperimentaJ Physics Laboratory

Fayer, Michael D.

76

Impact of dynamic feedbacks between sedimentation, sea-level rise, and biomass production on near-surface marsh stratigraphy and carbon accumulation  

E-Print Network [OSTI]

Impact of dynamic feedbacks between sedimentation, sea-level rise, and biomass production on near Keywords: salt marsh organic sediments accretion sea-level rise belowground biomass carbon storage a b model we explore how marsh stratigraphy responds to sediment supply and the rate of sea- level rise

77

Heat conduction of single-walled carbon nanotube isotope-superlattice structures: A molecular dynamics study  

E-Print Network [OSTI]

-folding effect to thermal boundary resistance of lattice interface. The crossover mechanism is explained-dimensional materials. In our previous molecular dynamics study, isotope-effects on the thermal conduction were of heat conduction of SWNTs subjected to nanoscale intrinsic thermal resistances. Here, in order to reduce

Maruyama, Shigeo

78

Theinfluence of a hierarchical porous carbon network on the coherent dynamics of a nanoconfined room temperature ionic liquid: A neutron spin echo and atomistic simulation investigation  

SciTech Connect (OSTI)

The molecular-scale dynamic properties of the room temperature ionic liquid (RTIL) 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, or [C4mim+ ][Tf2N ], confined in hierarchical microporous mesoporous carbon, were investigated using neutron spin echo (NSE) and molecular dynamics (MD) simulations. Both NSE and MD reveal pronounced slowing of the overall collective dynamics, including the presence of an immobilized fraction of RTIL at the pore wall, on the time scales of these approaches. A fraction of the dynamics, corresponding to RTIL inside 0.75 nm micropores located along the mesopore surfaces, are faster than those of RTIL in direct contact with the walls of 5.8 nm and 7.8 nm cylindrical mesopores. This behavior is ascribed to the near-surface confined-ion density fluctuations resulting from the ion ion and ion wall interactions between the micropores and mesopores as well as their confinement geometries. Strong micropore RTIL interactions result in less-coordinated RTIL within the micropores than in the bulk fluid. Increasing temperature from 296 K to 353 K reduces the immobilized RTIL fraction and results in nearly an order of magnitude increase in the RTIL dynamics. The observed interfacial phenomena underscore the importance of tailoring the surface properties of porous carbons to achieve desirable electrolyte dynamic behavior, since this impacts the performance in applications such as electrical energy storage devices.

Banuelos, Jose Leo [ORNL; Feng, Guang [ORNL; Fulvio, Pasquale F [ORNL; Li, Song [Vanderbilt University, Nashville; Rother, Gernot [ORNL; Arend, Nikolas [ORNL; Faraone, Antonio [National Institute of Standards and Technology (NIST); Dai, Sheng [ORNL; Cummings, Peter T [ORNL; Wesolowski, David J [ORNL

2014-01-01T23:59:59.000Z

79

Fossil resource and energy security dynamics in conventional and carbon-constrained worlds  

SciTech Connect (OSTI)

Fossil resource endowments and the future development of fossil fuel prices are important factors that will critically influence the nature and direction of the global energy system. In this paper we analyze a multi-model ensemble of long-term energy and emissions scenarios that were developed within the framework of the EMF27 integrated assessment model inter-comparison exercise. The diverse nature of these models highlights large uncertainties in the likely development of fossil resource (coal, oil, and natural gas) consumption, trade, and prices over the course of the twenty-first century and under different climate policy frameworks. We explore and explain some of the differences across scenarios and models and compare the scenario results with fossil resource estimates from the literature. A robust finding across the suite of IAMs is that the cumulative fossil fuel consumption foreseen by the models is well within the bounds of estimated recoverable reserves and resources. Hence, fossil resource constraints are, in and of themselves, unlikely to limit future GHG emissions. Our analysis also shows that climate mitigation policies could lead to a major reallocation of financial flows between regions, in terms of expenditures on fossil fuels and carbon, and can help to alleviate near-term energy security concerns via the reductions in oil imports and increases in energy system diversity they will help to motivate.

McCollum, David; Bauer, Nico; Calvin, Katherine V.; Kitous, Alban; Riahi, Keywan

2014-04-01T23:59:59.000Z

80

Capturing Carbon Will it work to cool the world?  

E-Print Network [OSTI]

Capturing Carbon Will it work to cool the world? Speakers: Dr. Malcolm Wilson Chief Executive in Exploration Geophysics Department of Geoscience, University of Calgary Theme Leader for Secure Carbon Storage, Carbon Management Canada Don Wharton Vice-President, Sustainable Development TransAlta Corporation

Calgary, University of

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Effects of nitrogen additions on above- and belowground carbon dynamics in two tropical forests  

SciTech Connect (OSTI)

Anthropogenic nitrogen (N) deposition is increasing rapidly in tropical regions, adding N to ecosystems that often have high background N availability. Tropical forests play an important role in the global carbon (C) cycle, yet the effects of N deposition on C cycling in these ecosystems are poorly understood. We used a field N-fertilization experiment in lower and upper elevation tropical rain forests in Puerto Rico to explore the responses of above- and belowground C pools to N addition. As expected, tree stem growth and litterfall productivity did not respond to N fertilization in either of these Nrich forests, indicating a lack of N limitation to net primary productivity (NPP). In contrast, soil C concentrations increased significantly with N fertilization in both forests, leading to larger C stocks in fertilized plots. However, different soil C pools responded to N fertilization differently. Labile (low density) soil C fractions and live fine roots declined with fertilization, while mineral-associated soil C increased in both forests. Decreased soil CO2 fluxes in fertilized plots were correlated with smaller labile soil C pools in the lower elevation forest (R2 = 0.65, p\\0.05), and with lower live fine root biomass in the upper elevation forest (R2 = 0.90, p\\0.05). Our results indicate that soil C storage is sensitive to N deposition in tropical forests, even where plant productivity is not N-limited. The mineral-associated soil C pool has the potential to respond relatively quickly to N additions, and can drive increases in bulk soil C stocks in tropical forests.

Cusack, D.; Silver, W.L.; Torn, M.S.; McDowell, W.H.

2011-04-15T23:59:59.000Z

82

Computational fluid dynamics simulations of oxy-coal combustion for carbon capture at atmospheric and elevated pressures  

E-Print Network [OSTI]

Oxy-fuel combustion of solid fuels, often performed in a mixture of oxygen and wet or dry recycled carbon dioxide, has gained significant interest in the last two decades as one of the leading carbon capture technologies ...

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

2013-01-01T23:59:59.000Z

83

Molecular Dynamics Simulation of a Single-Walled Carbon Nanotube Nucleation from a Catalytic Metal Cluster under  

E-Print Network [OSTI]

was placed in a rigid carbon nanotube. By supplying carbon atoms to the metal-carbide, nucleation process carbon atoms on the metal-carbide cluster surface lifts of and the cap can be recognized together. The distance between the inner and outer nanotubes is determined by the layered structure of the metal-carbide

Maruyama, Shigeo

84

Land use and land cover change: the effects of woody plant encroachment and prescribed fire on biodiversity and ecosystem carbon dynamics in a southern great plains mixed grass savanna  

E-Print Network [OSTI]

LAND USE AND LAND COVER CHANGE: THE EFFECTS OF WOODY PLANT ENCROACHMENT AND PRESCRIBED FIRE ON BIODIVERSITY AND ECOSYSTEM CARBON DYNAMICS IN A SOUTHERN GREAT PLAINS MIXED GRASS SAVANNA A Dissertation by EMILY BROOKE HOLLISTER Submitted... PLANT ENCROACHMENT AND PRESCRIBED FIRE ON BIODIVERSITY AND ECOSYSTEM CARBON DYNAMICS IN A SOUTHERN GREAT PLAINS MIXED GRASS SAVANNA A Dissertation by EMILY BROOKE HOLLISTER Submitted to the Office of Graduate Studies of Texas A&M University in partial...

Hollister, Emily Brooke

2009-05-15T23:59:59.000Z

85

Assimilation of satellite reflecance dataa into a dynamical leaf model to infer seasonally varying leaf area for climate and carbon models  

SciTech Connect (OSTI)

Leaf area index is an important input for many climate and carbon models. The widely used leaf area products derived from satellite-observed surface reflectances contain substantial erratic fluctuations in time due to inadequate atmospheric corrections and observational and retrieval uncertainties. These fluctuations are inconsistent with the seasonal dynamics of leaf area, known to be gradual. Their use in process-based terrestrial carbon models corrupts model behavior, making diagnosis of model performance difficult. We propose a data assimilation approach that combines the satellite observations of Moderate Resolution Imaging Spectroradiometer (MODIS) albedo with a dynamical leaf model. Its novelty is that the seasonal cycle of the directly retrieved leaf areas is smooth and consistent with both observations and current understandings of processes controlling leaf area dynamics. The approach optimizes the dynamical model parameters such that the difference between the estimated surface reflectances based on the modeled leaf area and those of satellite observations is minimized. We demonstrate the usefulness and advantage of our new approach at multiple deciduous forest sites in the United States.

Liu, Qing [Georgia Institute of Technology; Gu, Lianhong [ORNL; Dickinson, Robert E. [Georgia Institute of Technology; Tian, Y [Georgia Institute of Technology; Zhou, L [Georgia Institute of Technology; Post, Wilfred M [ORNL

2007-01-01T23:59:59.000Z

86

CARBON DIOXIDE SEQUESTRATION IN COAL: CHARACTERIZATION OF MATRIX DEFORMATION, SORPTION CAPACITY AND DYNAMIC PERMEABILITY AT IN-SITU STRESS CONDITIONS.  

E-Print Network [OSTI]

??Sequestration of anthropogenic carbon dioxide in geological formation is one of the climate change mitigation options. The successful application of this technology is dependent on… (more)

Pone, Jean Denis

2009-01-01T23:59:59.000Z

87

Role of PeptidePeptide Interactions in Stabilizing Peptide-Wrapped Single-Walled Carbon Nanotubes: A Molecular Dynamics Study  

E-Print Network [OSTI]

, and energy conservation devices.2 Unfortunately, car- bon nanotubes are extremely hydrophobic which leadsRole of Peptide­Peptide Interactions in Stabilizing Peptide-Wrapped Single-Walled Carbon Nanotubes at biopolymers@wiley. com INTRODUCTION S ingle-walled carbon nanotubes (SWNTs) are hollow cylinders formed

Nielsen, Steven O.

88

Government control or low carbon lifestyle? – Analysis and application of a novel selective-constrained energy-saving and emission-reduction dynamic evolution system  

Science Journals Connector (OSTI)

Abstract This paper explores a novel selective-constrained energy-saving and emission-reduction (ESER) dynamic evolution system, analyzing the impact of cost of conserved energy (CCE), government control, low carbon lifestyle and investment in new technology of ESER on energy intensity and economic growth. Based on artificial neural network, the quantitative coefficients of the actual system are identified. Taking the real situation in China for instance, an empirical study is undertaken by adjusting the parameters of the actual system. The dynamic evolution behavior of energy intensity and economic growth in reality are observed, with the results in perfect agreement with actual situation. The research shows that the introduction of CCE into ESER system will have certain restrictive effect on energy intensity in the earlier period. However, with the further development of the actual system, carbon emissions could be better controlled and energy intensity would decline. In the long run, the impacts of CCE on economic growth are positive. Government control and low carbon lifestyle play a decisive role in controlling ESER system and declining energy intensity. But the influence of government control on economic growth should be considered at the same time and the controlling effect of low carbon lifestyle on energy intensity should be strengthened gradually, while the investment in new technology of ESER can be neglected. Two different cases of ESER are proposed after a comprehensive analysis. The relations between variables and constraint conditions in the ESER system are harmonized remarkably. A better solution to carry out ESER is put forward at last, with numerical simulations being carried out to demonstrate the results.

Guochang Fang; Lixin Tian; Min Fu; Mei Sun

2014-01-01T23:59:59.000Z

89

Research in Science Education in Europe: Current Issues and Themes  

Science Journals Connector (OSTI)

In April 1995 the first European Conference on Research in Science Education was held in Leeds. The conference was attended by 144 participants and marked the start of the new European Science Education Research Association (ESERA), which has as one of its aims to strengthen contacts between European individuals and groups investigating science education. This book contains a selection of 32 papers presented at this conference. The papers are classified in seven sections: dealing with a variety of topics such as Teaching and Learning, Approaches to Science Instruction, Social Interactions in Science Classrooms and Science Education Research in Europe. The parts vary considerably in length: some contain only two or three papers, others six or even ten. Such an imbalance is understandable from the viewpoint that the editors had to select from the 126 posters and papers presented at the conference. This is not the type of volume you would consult in preparing the next day's physics lessons. However, the book offers good reading for those interested in current trends in science education research in Europe. It shows that many investigations focus on small case studies, that papers about children's understanding of scientific concepts have not been rated highly, and that only a few studies are going on in the important areas of practical work, science teacher training, multicultural science education and the implementation of results of science education research. One may also conclude from the book that European cooperation in this field has made a start by organizing PhD summer schools but that much more could be done to develop programmes of research on common themes. A majority of papers have been produced by authors working in the UK. The editors discuss this point at length in their Editorial, suggesting a number of plausible reasons for this outcome. I am not convinced by the strength of all of these. In fact, the contents of many of the British papers should not be unfamiliar to those reading the literature. This is a very sensitive issue, certainly in view of the interesting debates during the conference about cultural differences between the educational traditions in various parts of Europe. Sjoeberg's paper at the end of the volume reflects on these discussions, ending with a plea to conserve this cultural diversity and use it to learn from each other. Maybe most interesting is the gateway the book opens to research in science education at Continental institutions, results which have quite often been locked in journals and books that cannot be read by most British and American colleagues. The editors have done an excellent job in transforming many of these papers into good English. For the readers of this journal it might be interesting to notethat many papers dealing with aspects of physics teaching have been included, the topic of electricity is especially well represented. Almost half of the papers are devoted partly or fully to the teaching and learning of junior secondary pupils, eight to primary science education, six to A-level education and only one to science education at university level. The book is attractively produced and should find its way to all those who are involved in science education research or would like to know more about the use of its results in improving science curricula and teacher training, even outside Europe.

Harrie Eijkelhof

1997-01-01T23:59:59.000Z

90

Dynamics and statics of actin assemblies  

E-Print Network [OSTI]

The conversion of chemical energy into mechanical forces that powers cell movements is a ubiquitous theme across biology. The acrosome reaction of Limulus sperm is a simple example of such a dynamical transformation where ...

Shin, Jennifer Hyunjong, 1974-

2004-01-01T23:59:59.000Z

91

"Energize" Your Neighborhood with Energy-Themed Pumpkins | Department of  

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

"Energize" Your Neighborhood with Energy-Themed Pumpkins "Energize" Your Neighborhood with Energy-Themed Pumpkins "Energize" Your Neighborhood with Energy-Themed Pumpkins October 18, 2013 - 11:06am Addthis 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 Marissa Newhall Marissa Newhall Managing Editor, Energy.gov How can I participate? "Energize" your neighborhood with an energy-themed pumpkin! Download our jack-o-lantern stencils to get started, or design your own. Share photos of your energy pumpkins on Twitter, Instagram, Facebook or by email to newmedia@hq.doe.gov. We'll share our favorites during the week of Halloween. To commemorate National Energy Action Month, we're featuring some scarily effective ways to save energy at home. As cooler weather lurks around the corner, tune in to energy.gov throughout the month of October for ways to

92

Impact of India’s new map policy on accuracy of GIS theme  

Science Journals Connector (OSTI)

With the declaration of India’s new map policy (NMP), user community is looking towards its impact on spatial accuracy of GIS theme maps arising out of transformation from existing system ... Everest 1830 spheroi...

Jayanta Kumar Ghosh; Abhishek Dubey

2009-06-01T23:59:59.000Z

93

Scaling up of Carbon Exchange Dynamics from AmeriFlux Sites to a Super-Region in the Eastern United States  

SciTech Connect (OSTI)

The primary objective of this project was to evaluate carbon exchange dynamics across a region of North America between the Great Plains and the East Coast. This region contains about 40 active carbon cycle research (AmeriFlux) sites in a variety of climatic and landuse settings, from upland forest to urban development. The core research involved a scaling strategy that uses measured fluxes of CO{sub 2}, energy, water, and other biophysical and biometric parameters to train and calibrate surface-vegetation-atmosphere models, in conjunction with satellite (MODIS) derived drivers. To achieve matching of measured and modeled fluxes, the ecosystem parameters of the models will be adjusted to the dynamically variable flux-tower footprints following Schmid (1997). High-resolution vegetation index variations around the flux sites have been derived from Landsat data for this purpose. The calibrated models are being used in conjunction with MODIS data, atmospheric re-analysis data, and digital land-cover databases to derive ecosystem exchange fluxes over the study domain.

Hans Peter Schmid; Craig Wayson

2009-05-05T23:59:59.000Z

94

46 (2009-6) Nucleation of a single-walled carbon nanotube inside a carbon nanotube  

E-Print Network [OSTI]

of the metal-carbide. Key Words : Molecular Dynamics, Double-Walled Carbon Nanotube, Growth Mechanism, Carbon functions of carbon atoms and metal atoms in the metal carbide cluster #12;,10) Carbon (11,11) Carbon (15,6) Carbon (10,10) Metal (11,11) Metal (15,6) Metal Fig. 4 Density distribution

Maruyama, Shigeo

95

Dynamic  

Office of Legacy Management (LM)

Dynamic Dynamic , and Static , Res.ponse of the Government Oil Shale Mine at ' , . , Rifle, Colorado, to the Rulison Event. , . ; . . DISCLAIMER Portions of this document may be illegible in electronic image products. Images are produced from the best available original document. p ( y c - - a 2-1 0 -4- REPORT AT (29-2) 914 USBM 1 0 0 1 UNITED STATES DEPARTMENT O F THE I NTERIOR BUREAU OF MINES e s.09 P. L. R U S S E L L RESEARCH D l RECTOR Februory 2, lB7O DYNAMIC AND STATIC RESPONSE 'OF THE GOVERNMENT OIL SHALE MINE A T RIFLE, COLORADO, T O THE, RULISON EVENT ORDER FROM CFSTl A S ~ B ~ &J C / This page intentionally left blank CONTENTS Page . . . . . . . . . . . . . . . . . . . . . . . . . H i s t o r i c . a l Des c r i p t i o n 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Summary 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Introduction 3

96

High-temperature formation of concentric fullerene-like structures within foam-like carbon: Experiment and molecular dynamics simulation  

E-Print Network [OSTI]

car- bon ion implantation,4 and arc discharge from a carbon target in water.5 Onionlike structures of concentric fullerene-like structures, car- bon onions can be formed in a variety of harsh environments laser operating at 532 nm, generating 12 ps pulses at a rep- etition rate of 1.5 MHz, with average power

Powles, Rebecca

97

E-Print Network 3.0 - antibody-functionalized single-walled carbon...  

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

5 > >> 1 Molecular Dynamics Simulation of Nucleation Process of Single-Walled Carbon Nanotubes Summary: Molecular Dynamics Simulation of Nucleation Process of Single-Walled Carbon...

98

Dynamics  

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

Hydration Hydration Water on Rutile Studied by Backscattering Neutron Spectroscopy and Molecular Dynamics Simulation E. Mamontov,* ,† D. J. Wesolowski, ‡ L. Vlcek, § P. T. Cummings, §,| J. Rosenqvist, ‡ W. Wang, ⊥ and D. R. Cole ‡ Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6473, Chemical Sciences DiVision, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6110, Department of Chemical Engineering, Vanderbilt UniVersity, NashVille, Tennessee 37235-1604, Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6496, and EnVironmental Sciences DiVision, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6036 ReceiVed: December 20, 2007; ReVised Manuscript ReceiVed: June 4, 2008 The high energy resolution, coupled with the wide dynamic range, of the new backscattering

99

Probing scale interaction in brain dynamics through synchronization  

Science Journals Connector (OSTI)

...Theme Issue Complex network theory and the brain compiled and edited by David Papo, Javier...Bullmore Probing scale interaction in brain dynamics through synchronization Alessandro...Theme Issue Complex network theory and the brain . The mammalian brain operates in multiple...

2014-01-01T23:59:59.000Z

100

Please cite this article in press as: Birkholzer, J.T., et al., Brine flow up a well caused by pressure perturbation from geologic carbon sequestration: Static and dynamic evaluations. Int. J. Greenhouse Gas Control (2011), doi:10.1016/j.ijggc.2011.01.003  

E-Print Network [OSTI]

by pressure perturbation from geologic carbon sequestration: Static and dynamic evaluations. Int. J.elsevier.com/locate/ijggc Brine flow up a well caused by pressure perturbation from geologic carbon sequestration: Static carbon sequestration (GCS) has drawn increasing con- sideration as a promising method to mitigate

Zhou, Quanlin

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Belowground Carbon Cycling Processes at the Molecular Scale  

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

919 919 Belowground Carbon Cycling Processes at the Molecular Scale An EMSL Science Theme Advisory Panel Workshop Workshop Date: February 19-21, 2013 Prepared for the U.S. Department of Energy's Office of Biological and Environmental Research under Contract DE-AC05-76RL01830 Pacific Northwest National Laboratory Richland, Washington 99352 Belowground Carbon Cycling Processes at the Molecular Scale iii Executive Summary As part of the Belowground Carbon Cycling Processes at the Molecular Scale workshop, an Environmental Molecular

102

Influence of longitudinal isotope substitution on the thermal conductivity of carbon nanotubes: Results of nonequilibrium molecular dynamics and local density functional calculations  

SciTech Connect (OSTI)

We report reverse nonequilibrium molecular dynamics calculations of the thermal conductivity of isotope substituted (10,10) carbon nanotubes (CNTs) at 300 K. {sup 12}C and {sup 14}C isotopes both at 50% content were arranged either randomly, in bands running parallel to the main axis of the CNTs or in bands perpendicular to this axis. It is found that the systems with randomly distributed isotopes yield significantly reduced thermal conductivity. In contrast, the systems where the isotopes are organized in patterns parallel to the CNTs axis feature no reduction in thermal conductivity when compared with the pure {sup 14}C system. Moreover, a reduction of approximately 30% is observed in the system with the bands of isotopes running perpendicular to the CNT axis. The computation of phonon dispersion curves in the local density approximation and classical densities of vibrational states reveal that the phonon structure of carbon nanotubes is conserved in the isotope substituted systems with the ordered patterns, yielding high thermal conductivities in spite of the mass heterogeneity. In order to complement our conclusions on the {sup 12}C-{sup 14}C mixtures, we computed the thermal conductivity of systems where the {sup 14}C isotope was turned into pseudo-atoms of 20 and 40 atomic mass units.

Leroy, Frédéric, E-mail: f.leroy@theo.chemie.tu-darmstadt.de; Böhm, Michael C., E-mail: boehm@theo.chemie.tu-darmstadt.de [Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, D-64287 Darmstadt (Germany); Schulte, Joachim [Bruker Biospin GmbH, Silberstreifen, D-76287 Rheinstetten (Germany)] [Bruker Biospin GmbH, Silberstreifen, D-76287 Rheinstetten (Germany); Balasubramanian, Ganesh [Department of Mechanical Engineering, Iowa State University, Ames, Iowa 50011 (United States)] [Department of Mechanical Engineering, Iowa State University, Ames, Iowa 50011 (United States)

2014-04-14T23:59:59.000Z

103

Buckling and Topological Defects in Graphene and Carbon Nanotubes  

E-Print Network [OSTI]

4 Plasticity in Carbon Nanotubes 4.1Ultimate strength of carbon nanotubes: a theoretical study”.dynamics in superplastic nanotubes”. In: Phys. Rev. Lett.

Chen, Shuo

2012-01-01T23:59:59.000Z

104

Amorphization of Silicon Carbide by Carbon Displacement. | EMSL  

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

of Silicon Carbide by Carbon Displacement. Amorphization of Silicon Carbide by Carbon Displacement. Abstract: We have used molecular dynamics simulations to examine the possibility...

105

STUDENT CONFERENCE IN CONSERVATION SCIENCE, THEME: BIODIVERSITY IN AFRICA PRESENT STATE, CHALLENGES AND  

E-Print Network [OSTI]

STUDENT CONFERENCE IN CONSERVATION SCIENCE, THEME: BIODIVERSITY IN AFRICA ­ PRESENT STATE, Biodiversity and ecosystem functioning and services and Conservation of carnivores. Although all 4 workshops, CHALLENGES AND PROSPECTS ON ITS CONSERVATION. 2ND -4TH JULY 2013, NATIONAL MUSEUMS OF KENYA, NAIROBI, KENYA

106

Climate Analysis The central theme of the Climate Analysis Division is the analysis and  

E-Print Network [OSTI]

-duration nrp (National Research Programme on Global Air Pollution and Climate Change) project on climateClimate Analysis The central theme of the Climate Analysis Division is the analysis and diagnosis of the climate and its variability on the basis of observations and models. The objective of this research

Haak, Hein

107

Conference scope and theme The 1st International Smart Design conference aims to provide a  

E-Print Network [OSTI]

Conference scope and theme The 1st International Smart Design conference aims to provide a timely. Posters The conference includes a poster session which will provide students with the opportunity for the best poster. Conference sponsored by PepsiCo Europe Poster submission / areas of interest Topics

Evans, Paul

108

Knowledge acquisition method from domain text based on theme logic model and artificial neural network  

Science Journals Connector (OSTI)

In order to acquire knowledge from domain text such as failure analysis text of aviation product, a framework is proposed to enhance the efficiency and accuracy of knowledge acquisition. In this framework, sentence templates are defined to extract the ... Keywords: Artificial neural network, Domain text, Failure analysis report, Knowledge acquisition, Theme logic model

Jun Wang; Yunpeng Wu; Xuening Liu; Xiaoying Gao

2010-01-01T23:59:59.000Z

109

Theme: A: Restoration Thematic Session (LeS): ThS_A1: Footprint assessment  

E-Print Network [OSTI]

of this innovative technology is to enable the remediation of large brownfields areas, for which no real operationalTheme: A: Restoration Thematic Session (LeS): ThS_A1: Footprint assessment SUSTAINABLE REMEDIATION STRATEGIES: A MULTICRITERIA ANALYSIS TO SELECT AND COMPARE REMEDIATION TECHNIQUES IN A SUSTAINABILITY

Boyer, Edmond

110

Semiotic Themes  

E-Print Network [OSTI]

langue and parole may be placed. Langue is the social product of the semiological behavior of a speech community, while parole is the individual facet of the phenomenon, i.e., any of the concrete acts of speech performed by members of such a community...

1981-01-01T23:59:59.000Z

111

CARBON-CARBON COMPOSITE ALLCOMP Carbon-Carbon Composite  

E-Print Network [OSTI]

CARBON-CARBON COMPOSITE ALLCOMP Carbon-Carbon Composite · C-C supplied in two forms · T300: C-C composite containing continuous PAN T300 fibers · SWB: Chopped Fiber Composite containing SWB fibers Crush strength 4340 steel, carbon-carbon composite, and Carbon-Silicon Carbide composite were tested to examine

Rollins, Andrew M.

112

2013 Asian American & Pacific Islander Heritage Month Resources and Theme |  

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

2013 Asian American & Pacific Islander Heritage Month Resources and 2013 Asian American & Pacific Islander Heritage Month Resources and Theme 2013 Asian American & Pacific Islander Heritage Month Resources and Theme April 3, 2013 - 1:43pm Addthis Save the date for the Asian Pacific American Heritage Month Family Day at the Smithsonian! This year it will be at the National Museum of American History on Saturday, May 4, 2013. More details to come. Save the date for the Asian Pacific American Heritage Month Family Day at the Smithsonian! This year it will be at the National Museum of American History on Saturday, May 4, 2013. More details to come. Editor's Note: This information is provided by the White House Initiative on Asian Americans and Pacific Islanders. For the 2013 Asian American and Pacific Islander (AAPI) Heritage Month, the

113

Dynamics of cementation in response to oil charge: Evidence from a Cretaceous carbonate field, U.A.E.  

Science Journals Connector (OSTI)

Oil charge is thought to inhibit the growth of cements within subsurface pore systems. We explore this phenomenon in a giant Cretaceous carbonate field from U.A.E., where the oil-filled crest porosity ranges from 10 to 50% and permeability from 0.08 to 830 mD but coeval water leg porosity is reduced to 10 to 23% and permeability to 0.1 to 4 mD. Only 5% of primary interparticle pores (> 30 ?m diameter) in the crest are fully cemented, compared to 99% of pores in the water leg. Syntaxial calcite burial cements (> 10 ?m diameter) in the oil leg show 12 cathodoluminescence zones with oil inclusions (n = 27) occurring in four of the five final zones. Mean in-situ ion microprobe ?18OVPDB data from the oil leg cements range from ?1.2‰ in the oldest zone decreasing to ?10.3‰ in zone 11, returning to ?7.7‰ in the final zone. The oldest distinguishable cement zone in the water leg shows highly variable ?18O from ?3.6‰ to ?9.3‰ with a mean of ?7.3‰, and with subsequent zones decreasing to a mean value of ?9.4‰ for the youngest cement zone. Decreasing ?18O values are interpreted as indicating increasing temperature reflecting burial and the evolution of pore water composition: broadly similar trends in the oil and water legs suggest precipitation under the same general conditions. Unlike the oil leg cements, the final zone in the water leg occludes nearly all remaining pore space. The ?18OVPDB of bulk micrite from the water leg shows an average of ?7.4‰ (n = 9) compared to ?6.2‰ (n = 10) from the oil leg, suggesting the precipitation of further micrite cement at greater burial depths. We infer that burial cementation slowed in the presence of oil due to a reduction of potential nucleation sites as well as porewater and solute movement within weakly oil-wet pores, whereas continued flow and solute movement through all pores including the micropores (< 10 ?m diameter) enabled extensive cementation in the water leg.

P.A. Cox; R.A. Wood; J.A.D. Dickson; H.B. Al Rougha; H. Shebl; P.W.M. Corbett

2010-01-01T23:59:59.000Z

114

Changes in MIS research: status and themes from 1989 to 2000  

Science Journals Connector (OSTI)

In terms of the time frame, this study extends the period (1952â??1988) of the Management of Information Systems (MIS) study by Dickson and DeSanctis (D&D) from 1989 to 2000. Thus, the purpose of this study is the same as that of the D&D's study, that is, to survey the literature in the area of MIS in order to identify past research themes and trends and point to future research directions. An integral part of this study is to compare the current findings with those of D&D's study, thereby highlighting research patterns or trends in the MIS area. The evidence uncovered by this study indicates that the MIS activities were dominated by descriptive, prescriptive and hermeneutic studies in the late 1980s and early 1990s, whereas in recent years there has been a great increase in empirical research. The major findings may be summarised as follows: (1) research themes such as administration of computer centres, information systems (IS) control, hardware resource management, IS security and data resource management have gradually diminished; (2) research themes, including IS planning, IS evaluation and the successful transfer of IS technology into the organisation, have matured during recent years; (3) there have been an increasing number of empirical studies in 1990s in the area of MIS with an emphasis on themes such as software resource management, IS evaluation, information technology (IT) strategic planning and general IS/IT management and (4) in addition to the two main journals, MIS Quarterly and Communications of the ACM, Information Systems Research and Journal of Management Information Systems play a significant role in the publication of the MIS empirical research results. Overall, there was a conspicuous change in the pattern of research themes and trends from the period (1952â??1988) covered by the D&D's study to the period (1989â??2000) under this study. This change spurred by new technologies such as intranet and internet in hardware and software and enterprise resources planning (ERP), knowledge management, supply-chain management in software warrants a revision of Barki et al.'s classification scheme for research in the MIS area.

Wilfred W. Wu; Song-Horng Lin; Yea-Yun Cheng; Cheng-Hwai Liou; Jui-Yuan Wu; Yi-Hua Lin; Frederick H. Wu

2006-01-01T23:59:59.000Z

115

The Dynamics of Brain-Body-Environment Systems  

E-Print Network [OSTI]

The Dynamics of Brain-Body-Environment Systems in Behavior and Cognition An NSF IGERT Training Program Environment BodyAgent Agent Graduate Traineeships Available in Research Themes * Brain Dynamics the dynamical interaction of brains with bodies, agents with their environments, and agents with other agents

Menczer, Filippo

116

Carbon sequestration  

Science Journals Connector (OSTI)

...Leaver and Howard Dalton Carbon sequestration Rattan Lal * * ( lal.1...and biotic technologies. Carbon sequestration implies transfer of atmospheric...and biomass burning. 3. Carbon sequestration Emission rates from fossil...

2008-01-01T23:59:59.000Z

117

Carbon Sequestration  

Science Journals Connector (OSTI)

“Carbon sequestration” refers to a portfolio of activities for ... capture, separation and storage or reuse of carbon or CO2. Carbon sequestration technologies encompass both the prevention of CO2 emissions into ...

Robert L. Kane MS; Daniel E. Klein MBA

2005-01-01T23:59:59.000Z

118

Dynamics of nitrogen and greenhouse gas emission under elevated carbon dioxide in semi-arid cropping systems in Australia and China.  

E-Print Network [OSTI]

??Within less than 50 years, atmospheric carbon dioxide concentration [CO2] will likely be double that observed in 1950. In this higher [CO2] world the sustainability… (more)

Lam, Shu Kee

2012-01-01T23:59:59.000Z

119

Green Chemistry Dynamic Article Links Cite this: Green Chem., 2011, 13, 1467  

E-Print Network [OSTI]

as part of the themed issue of contributions from the Green Solvents ­ Alternative Fluids in ScienceGreen Chemistry Dynamic Article Links Cite this: Green Chem., 2011, 13, 1467 www

Iglesia, Enrique

120

Carbon Smackdown: Carbon Capture  

SciTech Connect (OSTI)

In this July 9, 2010 Berkeley Lab summer lecture, Lab scientists Jeff Long of the Materials Sciences and Nancy Brown of the Environmental Energy Technologies Division discuss their efforts to fight climate change by capturing carbon from the flue gas of power plants, as well as directly from the air

Jeffrey Long

2010-07-12T23:59:59.000Z

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Atmospheric Carbon Dioxide Variability in the Community Earth System Model: Evaluation and Transient Dynamics during the Twentieth and Twenty-First Centuries  

Science Journals Connector (OSTI)

Changes in atmospheric CO2 variability during the twenty-first century may provide insight about ecosystem responses to climate change and have implications for the design of carbon monitoring programs. This paper describes changes in the three-...

Gretchen Keppel-Aleks; James T. Randerson; Keith Lindsay; Britton B. Stephens; J. Keith Moore; Scott C. Doney; Peter E. Thornton; Natalie M. Mahowald; Forrest M. Hoffman; Colm Sweeney; Pieter P. Tans; Paul O. Wennberg; Steven C. Wofsy

2013-07-01T23:59:59.000Z

122

The Allocation of European Union Allowances: Lessons, Unifying Themes and General Principles  

E-Print Network [OSTI]

A critical issue in dealing with climate change is deciding who has a right to emit carbon dioxide (CO2), and under what conditions, when those emissions are limited. The European Union Emissions Trading Scheme (EU ETS) ...

Buchner, Barbara.

123

Carbon Conference  

Science Journals Connector (OSTI)

Carbon Conference ... The Fourth Hienninl Conference on Carbon will be held at the University of Buffalo, June 15 to 19. ... The Pittsburgh Section's coal technology group will meet in the conference room at Mellon Institute, Pittsburgh, June ... ...

1959-06-01T23:59:59.000Z

124

Carbon Storage in Young Growth Coast Redwood Stands  

E-Print Network [OSTI]

515 Carbon Storage in Young Growth Coast Redwood Stands Dryw A. Jones1 and Kevin L. O'Hara1 Abstract Carbon sequestration is an emerging forest management objective within California and around the dynamics of carbon sequestration and to accurately measure carbon storage is essential to insure successful

Standiford, Richard B.

125

Experience us with dark theme 0 comments TweetTweet 12 3 0ShareShare TEXT SIZEE-MAIL  

E-Print Network [OSTI]

Experience us with dark theme 0 comments TweetTweet 12 3 0ShareShare TEXT SIZEE-MAIL Bouncing been facing the baby then performed several simple tasks #12;Around the web 5 Nice Things Guys Do in Sexual ... 1 comment · 2 days ago Joe -- I'm astonished that a web site that bills itself "science world

Trainor, Laurel J.

126

Spooky Science Series. The MagLab holds a Halloween-themed event each year in October. The Spooky Science  

E-Print Network [OSTI]

Spooky Science Series. The MagLab holds a Halloween- themed event each year in October. The Spooky Science event brings families to the lab for hands-on activities and laboratory tours, planned by the MagLab staff scientists and graduate students to science education and outreach. . · The 2014 event had over

Weston, Ken

127

Carbon dioxide emissions, economic growth, industrial structure, and technical efficiency: Empirical evidence from Ghana, Senegal, and Morocco on the causal dynamics  

Science Journals Connector (OSTI)

This paper investigated the short-run causal relationships and the long-run equilibrium relationships among carbon dioxide emissions, economic growth, technical efficiency, and industrial structure for three African countries. Using Bounds cointegration approach the result showed evidence of multiple long-run equilibrium relationships for Ghana and Senegal but a one-way long-run equilibrium relationship for Morocco. The result from the Toda and Yomamoto granger causality test showed a mix of bidirectional, unidirectional, and neutral relationships for all countries. Whilst in Senegal carbon dioxide emission was not found to be a limiting factor to economic growth; it was found to act as a limiting factor to economic growth in Morocco and Ghana. Lastly, the result from the variance decomposition analysis revealed that economic growth contributes largely to changes in future carbon dioxide emissions in Senegal and Morocco whilst in Ghana technical efficiency contributes largely to changes in future variations in carbon dioxide emissions. These results have important policy implications for these countries' energy efficiency systems.

Philip Kofi Adom; William Bekoe; Franklin Amuakwa-Mensah; Justice Tei Mensah; Ebo Botchway

2012-01-01T23:59:59.000Z

128

Carbon Cycle  

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

Carbon Cycle Carbon Cycle Latest Global Carbon Budget Estimates Including CDIAC Estimates Terrestrial Carbon Management Data Sets and Analyses Carbon Dioxide Emissions from Fossil-Fuel Consumption and Cement Manufacture, (2011) Annual Fossil-Fuel CO2 Emissions: Mass of Emissions Gridded by One Degree Latitude by One Degree Longitude (2012) Monthly Fossil-Fuel CO2 Emissions: Mass of Emissions Gridded by One Degree Latitude by One Degree Longitude (2012) Annual Fossil-Fuel CO2 Emissions: Global Stable Carbon Isotopic Signature (2012) Monthly Fossil-Fuel CO2 Emissions: Isomass (δ 13C) of Emissions Gridded by One Degree Latitude by One Degree Longitude (2012) AmeriFlux - Terrestrial Carbon Dioxide, Water Vapor, and Energy Balance Measurements Estimates of Monthly CO2 Emissions and Associated 13C/12C Values

129

Carbon Isotopes  

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

Atmospheric Trace Gases » Carbon Isotopes Atmospheric Trace Gases » Carbon Isotopes Carbon Isotopes Gateway Pages to Isotopes Data Modern Records of Carbon and Oxygen Isotopes in Atmospheric Carbon Dioxide and Carbon-13 in Methane 800,000 Deuterium Record and Shorter Records of Various Isotopic Species from Ice Cores Carbon-13 13C in CO Measurements from Niwot Ridge, Colorado and Montana de Oro, California (Tyler) 13C in CO2 NOAA/CMDL Flask Network (White and Vaughn) CSIRO GASLAB Flask Network (Allison, Francey, and Krummel) CSIRO in situ measurements at Cape Grim, Tasmania (Francey and Allison) Scripps Institution of Oceanography (Keeling et al.) 13C in CH4 NOAA/CMDL Flask Network (Miller and White) Northern & Southern Hemisphere Sites (Quay and Stutsman) Northern & Southern Hemisphere Sites (Stevens)

130

2000): Soil carbon sequestration and land-use change: processes and potential  

E-Print Network [OSTI]

matter dynamics that may result in enhanced soil carbon sequestration with changes in land-use and soil

W. M. Post; K. C. Kwon

131

Consequences of Considering Carbon–Nitrogen Interactions on the Feedbacks between Climate and the Terrestrial Carbon Cycle  

Science Journals Connector (OSTI)

The impact of carbon–nitrogen dynamics in terrestrial ecosystems on the interaction between the carbon cycle and climate is studied using an earth system model of intermediate complexity, the MIT Integrated Global Systems Model (IGSM). Numerical ...

Andrei P. Sokolov; David W. Kicklighter; Jerry M. Melillo; Benjamin S. Felzer; C. Adam Schlosser; Timothy W. Cronin

2008-08-01T23:59:59.000Z

132

Evaluating the Contribution of Climate Forcing and Forest Dynamics to Accelerating Carbon Sequestration by Forest Ecosystems in the Northeastern U.S.: Final Report  

SciTech Connect (OSTI)

This report summarizes work to improve quantitative understanding of the terrestrial ecosystem processes that control carbon sequestration in unmanaged forests It builds upon the comprehensive long-term observations of CO2 fluxes, climate and forest structure and function at the Harvard Forest in Petersham, MA. This record includes the longest CO2 flux time series in the world. The site is a keystone for the AmeriFlux network. Project Description The project synthesizes observations made at the Harvard Forest HFEMS and Hemlock towers, which represent the dominant mixed deciduous and coniferous forest types in the northeastern United States. The 20+ year record of carbon uptake at Harvard Forest and the associated comprehensive meteorological and biometric data, comprise one of the best data sets to challenge ecosystem models on time scales spanning hourly, daily, monthly, interannual and multi-decadal intervals, as needed to understand ecosystem change and climate feedbacks.

Munger, J. William [Harvard University, SEAS] (ORCID:0000000210428452); Foster, David R. [Harvard University, Harvard Forest; Richardson, Andrew D. [Harvard University, OEB

2014-10-01T23:59:59.000Z

133

Carbon Nanotubes.  

E-Print Network [OSTI]

?? Carbon nanotubes have extraordinary mechanical, electrical, thermal andoptical properties. They are harder than diamond yet exible, have betterelectrical conductor than copper, but can also… (more)

Fredriksson, Tore

2014-01-01T23:59:59.000Z

134

Capturing carbon | EMSL  

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

Capturing carbon Capturing carbon New technology enables molecular-level insight into carbon sequestration Carbon sequestration is a potential solution for reducing greenhouse...

135

Natural materials for carbon capture.  

SciTech Connect (OSTI)

Naturally occurring clay minerals provide a distinctive material for carbon capture and carbon dioxide sequestration. Swelling clay minerals, such as the smectite variety, possess an aluminosilicate structure that is controlled by low-charge layers that readily expand to accommodate water molecules and, potentially, carbon dioxide. Recent experimental studies have demonstrated the efficacy of intercalating carbon dioxide in the interlayer of layered clays but little is known about the molecular mechanisms of the process and the extent of carbon capture as a function of clay charge and structure. A series of molecular dynamics simulations and vibrational analyses have been completed to assess the molecular interactions associated with incorporation of CO2 in the interlayer of montmorillonite clay and to help validate the models with experimental observation.

Myshakin, Evgeniy M. (National Energy Technology Laboratory, Pittsburgh, PA); Romanov, Vyacheslav N. (National Energy Technology Laboratory, Pittsburgh, PA); Cygan, Randall Timothy

2010-11-01T23:59:59.000Z

136

Grassland carbon and nitrogen dynamics: effects of seasonal fire and clipping in a mixed-grass prairie of the southern great plains  

E-Print Network [OSTI]

influenced by climate. They may also be modulated by the timing and intensity of disturbances such as fire and clipping. We assessed the relative influence of climate and disturbance on plant community and soil C and N dynamics. Combined effects of fire...

Harris, Wylie Neal

2006-08-16T23:59:59.000Z

137

Carbon Sequestration  

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

David a. Lang David a. Lang Project Manager National Energy Technology Laboratory 626 Cochrans Mill Road P.O. Box 10940 Pittsburgh, PA 15236 412-386-4881 david.lang@netl.doe.gov andrew chizmeshya Arizona State University Center for Solid State Science Tempe, AZ 85287-1704 480-965-6072 chizmesh@asu.edu A Novel ApproAch to MiNerAl cArboNAtioN: eNhANciNg cArboNAtioN While AvoidiNg MiNerAl pretreAtMeNt process cost Background Carbonation of the widely occurring minerals of the olivine group, such as forsterite (Mg 2 SiO 4 ), is a potential large-scale sequestration process that converts CO 2 into the environmentally benign mineral magnesite (MgCO 3 ). Because the process is exothermic, it inherently offers low-cost potential. Enhancing carbonation reactivity is the key to economic viability. Previous

138

Carbon Nanotubes  

Science Journals Connector (OSTI)

A broad review of the structure and properties of carbon nanotubes is presented. Particular emphasis is given to ... dimensional density of states predicted for single-wall nanotubes of small diameter. The eviden...

M. S. Dresselhaus; G. Dresselhaus…

2000-01-01T23:59:59.000Z

139

Carbon Fiber  

ScienceCinema (OSTI)

Lee McGetrick leads ORNL's effort to produce light, durable carbon fiber at lower cost -- a key to improvements in manufacturing that will produce more fuel-efficient vehicles and other advances.

McGetrick, Lee

2014-07-23T23:59:59.000Z

140

Carbon Fiber  

SciTech Connect (OSTI)

Lee McGetrick leads ORNL's effort to produce light, durable carbon fiber at lower cost -- a key to improvements in manufacturing that will produce more fuel-efficient vehicles and other advances.

McGetrick, Lee

2014-04-17T23:59:59.000Z

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Designed amyloid fibers as materials for selective carbon dioxide capture  

E-Print Network [OSTI]

Designed amyloid fibers as materials for selective carbon dioxide capture Dan Lia,b,c,1 , Hiroyasu demonstrate that amyloids, self-assembling protein fibers, are effective for selective carbon dioxide capture formation rate is fast enough to capture carbon dioxide by dynamic separation, undiminished by the presence

142

Increasing access to the carbon market ENERGY, CLIMATE  

E-Print Network [OSTI]

Increasing access to the carbon market ENERGY, CLIMATE AND SUSTAINABLE DEVELOPMENT 2008 #12;2 World is growing in parallel. With a dynamic carbon market under constant development, the Energy and Carbon Fi events in 2008 have substantially altered the global financial landscape. What that means for energy

143

Low Carbon Fuel Standards  

E-Print Network [OSTI]

gas, or even coal with carbon capture and sequestration. Afuels that facilitate carbon capture and sequestration. Forenergy and could capture and sequester carbon emissions.

Sperling, Dan; Yeh, Sonia

2009-01-01T23:59:59.000Z

144

Carbon Additionality: Discussion Paper  

E-Print Network [OSTI]

ahead, and identifying the carbon pools and other green house gas emissions sources and savings coveredCarbon Additionality: A review Discussion Paper Gregory Valatin November 2009 Forest Research. Voluntary Carbon Standards American Carbon Registry Forest Carbon Project Standard (ACRFCPS) 27 Carbon

145

PROOF COPY 020416JCP Dynamics and the breaking of a driven cage: I2 in solid Ar  

E-Print Network [OSTI]

as a transducer to drive the cage and to report on the local dynamics. This general class of dynamics scale of 3 ps, which is extracted from the down-chirp in the molecular vibrational frequency. When breaking of the cage. The common theme in these analyses is the use of a molecu- lar spring of variable

Apkarian, V. Ara

146

Carbon Sequestration  

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

Technology Technology Laboratory 626 Cochrans Mill Road P.O. Box 10940 Pittsburgh, PA 15236-0940 412-386-4966 jose.figueroa@netl.doe.gov Kevin o'Brien Principal Investigator SRI International Materials Research Laboratory 333 Ravenswood Avenue Menlo Park, AK 94025 650-859-3528 kevin.obrien@sri.com Fabrication and Scale-Up oF polybenzimidazole - baSed membrane SyStem For pre - combUStion captUre oF carbon dioxide Background In order to effectively sequester carbon dioxide (CO 2 ) from a gasification plant, there must be an economically viable method for removing the CO 2 from other gases. While CO 2 separation technologies currently exist, their effectiveness is limited. Amine-based separation technologies work only at low temperatures, while pressure-swing absorption and cryogenic distillation consume significantly

147

Carbon Sequestration  

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

andrea Mcnemar andrea Mcnemar National Energy Technology Laboratory 3610 Collins Ferry Road P.O. Box 880 Morgantown, WV 26507-0880 304-285-2024 andrea.mcnemar@netl.doe.gov Gregory J. Elbring Principal Investigator Sandia National Laboratory P.O. Box 5800 Albuquerque, NM 87185 505-844-4904 gjelbri@sandia.gov GeoloGic SequeStration of carbon DioxiDe in a DepleteD oil reServoir: a comprehenSive moDelinG anD Site monitorinG project Background The use of carbon dioxide (CO 2 ) to enhance oil recovery (EOR) is a familiar and frequently used technique in the United States. The oil and gas industry has significant experience with well drilling and injecting CO 2 into oil-bearing formations to enhance production. While using similar techniques as in oil production, this sequestration field

148

Carbon Trading, Carbon Taxes and Social Discounting  

E-Print Network [OSTI]

Carbon Trading, Carbon Taxes and Social Discounting Elisa Belfiori belf0018@umn.edu University of Minnesota Abstract This paper considers the optimal design of policies to carbon emissions in an economy, such as price or quantity controls on the net emissions of carbon, are insufficient to achieve the social

Weiblen, George D

149

Definition, Capabilities, and Components of a Terrestrial Carbon Monitoring System  

SciTech Connect (OSTI)

Research efforts for effectively and consistently monitoring terrestrial carbon are increasing in number. As such, there is a need to define carbon monitoring and how it relates to carbon cycle science and carbon management. There is also a need to identify intended capabilities of a carbon monitoring system and what system components are needed to develop the capabilities. This paper is intended to promote discussion on what capabilities are needed in a carbon monitoring system based on requirements for different areas of carbon-related research and, ultimately, for carbon management. While many methods exist to quantify different components of the carbon cycle, research is needed on how these methods can be coupled or integrated to obtain carbon stock and flux estimates regularly and at a resolution that enables attribution of carbon dynamics to respective sources. As society faces sustainability and climate change conerns, carbon management activities implemented to reduce carbon emissions or increase carbon stocks will become increasingly important. Carbon management requires moderate to high resolution monitoring. Therefore, if monitoring is intended to help inform management decisions, management priorities should be considered prior to development of a monitoring system.

West, Tristram O.; Brown, Molly E.; Duran, Riley M.; Ogle, Stephen; Moss, Richard H.

2013-08-08T23:59:59.000Z

150

Hydrodynamic properties of carbon nanotubes  

Science Journals Connector (OSTI)

We study water flowing past an array of single walled carbon nanotubes using nonequilibrium molecular dynamics simulations. For carbon nanotubes mounted with a tube spacing of 16.4×16.4 nm and diameters of 1.25 and 2.50 nm, respectively, we find drag coefficients in reasonable agreement with the macroscopic, Stokes-Oseen solution. The slip length is -0.11 nm for the 1.25 nm carbon nanotube, and 0.49 for the 2.50 nm tube for a flow speed of 50 m/s, respectively, and 0.28 nm for the 2.50 nm tube at 200 m/s. A slanted flow configuration with a stream- and spanwise velocity component of 100 ms-1 recovers the two-dimensional results, but exhibits a significant 88 nm slip along the axis of the tube. These results indicate that slip depends on the particular flow configuration.

J. H. Walther; T. Werder; R. L. Jaffe; P. Koumoutsakos

2004-06-04T23:59:59.000Z

151

Socio-economic dynamics of biofuel  

E-Print Network [OSTI]

i Socio-economic dynamics of biofuel development in Asia Pacific Christina Schott Jakarta, 2009 #12;ii Socio-economic dynamics of biofuel development in Asia Pacific Socio-economic dynamics of biofuel of many biofuels has turned out to be far from sustainable. The carbon balance often proves to be negative

152

Causes and implications of persistent atmospheric carbon dioxide biases in Earth System Models  

E-Print Network [OSTI]

Intercomparison Project indicated that climate models oftenpled Climate–Carbon Cycle Model Intercomparison Project (C 4BIOFEEDBACK project of the Center for Climate Dynamics (SKD)

2014-01-01T23:59:59.000Z

153

Long-term patterns of dissolved organic carbon in lakes across ...  

Science Journals Connector (OSTI)

... dynamics of dissolved organic carbon (DOC) in 55 lakes during ice-free periods in five regions across eastern Canada in relation to total solar radiation (

154

Carbon Fiber Consortium | Partnerships | ORNL  

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

Carbon Fiber Consortium SHARE Carbon Fiber Consortium Oak Ridge Carbon Fiber Composites Consortium The Oak Ridge Carbon Fiber Composites Consortium was established in 2011 to...

155

Dominoes in Carbon Nanotubes  

Science Journals Connector (OSTI)

We demonstrate by molecular dynamics simulations that the domino process can be developed in single-walled carbon nanotubes (SWCNTs). Once a section of a SWCNT with an appropriate diameter (>3.5??nm) is collapsed, the successive collapse of the neighboring portions can generate a domino wave along the longitudinal direction of the tube. The wave is driven by van der Waals potential energy and its natural speed can be up to 1??km/s. Molecules inside the SWCNT can be accelerated by the domino wave and finally shot out. The finding shows for the first time that a SWCNT can be an energy supplier, which provides opportunities for designing new concept (domino-driven) nanoelectromechanical system devices.

Tienchong Chang

2008-10-21T23:59:59.000Z

156

Image Framing in Climate Change News Stories, p-1 Image Themes and Frames in U.S. Print News Stories about Climate Change  

E-Print Network [OSTI]

Image Framing in Climate Change News Stories, p-1 Image Themes and Frames in U.S. Print News Stories about Climate Change Stacy Rebich-Hespanha, Ronald E. Rice, Daniel R. Montello, Sean Retzloff, Sandrine Tien & João P. Hespanha Research on frames in climate change news coverage has advanced

Hespanha, João Pedro

157

Carbon Sequestration Project Portfolio  

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

Home > Technologies > Carbon Storage > Reference Shelf > Project Portfolio Home > Technologies > Carbon Storage > Reference Shelf > Project Portfolio Carbon Storage 2011 Carbon Storage Project Portfolio Table of Contents CARBON STORAGE OVERVIEW Carbon Storage Program Contacts [PDF-26KB] Carbon Storage Projects National Map [PDF-169KB] State Projects Summary Table [PDF-39KB] Carbon Storage Program Structure [PDF-181KB] Selected Carbon Sequestration Program Papers and Publications The U.S. Department of Energy's R&D Program to Reduce Greenhouse Gas Emissions Through Beneficial Uses of Carbon Dioxide (2011) [PDF-3.3MB] Greenhouse Gas Science and Technology Carbon Capture and Sequestration: The U.S. Department of Energy's R&D Efforts to Characterize Opportunities for Deep Geologic Storage of Carbon Dioxide in Offshore Resources (2011) [PDF-445KB]

158

CALIFORNIA CARBON SEQUESTRATION THROUGH  

E-Print Network [OSTI]

CALIFORNIA ENERGY COMMISSION CARBON SEQUESTRATION THROUGH CHANGES IN LAND USE IN WASHINGTON. Carbon Sequestration Through Changes in Land Use in Washington: Costs and Opportunities. California for Terrestrial Carbon Sequestration in Oregon. Report to Winrock International. #12;ii #12;iii Preface

159

Control strategies for supercritical carbon dioxide power conversion systems  

E-Print Network [OSTI]

The supercritical carbon dioxide (S-C02) recompression cycle is a promising advanced power conversion cycle which couples well to numerous advanced nuclear reactor designs. This thesis investigates the dynamic simulation ...

Carstens, Nathan, 1978-

2007-01-01T23:59:59.000Z

160

Method of making carbon-carbon composites  

DOE Patents [OSTI]

A process for making 2D and 3D carbon-carbon composites having a combined high crystallinity, high strength, high modulus and high thermal and electrical conductivity. High-modulus/high-strength mesophase derived carbon fibers are woven into a suitable cloth. Layers of this easily graphitizible woven cloth are infiltrated with carbon material to form green composites. The carbonized composite is then impregnated several times with pitch by covering the composite with hot pitch under pressure. The composites are given a heat treatment between each impregnant step to crack up the infiltrated carbon and allow additional pitch to enter the microstructure during the next impregnation cycle. The impregnated composites are then given a final heat treatment in the range 2500.degree. to 3100.degree. C. to fully graphitize the fibers and the matrix carbon. The composites are then infiltrated with pyrolytic carbon by chemical vapor deposition in the range 1000.degree. C. to 1300.degree. C. at a reduced. pressure.

Engle, Glen B. (16716 Martincoit Rd., Poway, CA 92064)

1993-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Science Themes | EMSL  

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

climate, biological, environmental and energy systems. These advancements are critical to development of sustainable solutions to the nation's energy and environmental challenges....

162

Carbon Code Requirements for voluntary carbon sequestration projects  

E-Print Network [OSTI]

Woodland Carbon Code Requirements for voluntary carbon sequestration projects ® Version 1.2 July trademark 10 3. Carbon sequestration 11 3.1 Units of carbon calculation 11 3.2 Carbon baseline 11 3.3 Carbon leakage 12 3.4 Project carbon sequestration 12 3.5 Net carbon sequestration 13 4. Environmental quality 14

163

Toward Zero Carbon Energy Production Toward Zero Carbon Energy Production  

E-Print Network [OSTI]

#12;Toward Zero Carbon Energy Production Toward Zero Carbon Energy Production Toward Zero Carbon Energy Production Toward Zero Carbon Energy Production Toward Zero Carbon Energy Production Toward Zero Carbon Energy Production Toward Zero Carbon Energy Production Toward Zero Carbon Energy Production Toward

Narasayya, Vivek

164

Low Carbon Fuel Standards  

E-Print Network [OSTI]

in 1990. These many alternative-fuel initiatives failed tolow-cost, low-carbon alternative fuels would thrive. Theto introduce low-carbon alternative fuels. Former Federal

Sperling, Dan; Yeh, Sonia

2009-01-01T23:59:59.000Z

165

Carbon Capture (Carbon Cycle 2.0)  

ScienceCinema (OSTI)

Berend Smit speaks at the Carbon Cycle 2.0 kick-off symposium Feb. 3, 2010. We emit more carbon into the atmosphere than natural processes are able to remove - an imbalance with negative consequences. Carbon Cycle 2.0 is a Berkeley Lab initiative to provide the science needed to restore this balance by integrating the Labs diverse research activities and delivering creative solutions toward a carbon-neutral energy future. http://carboncycle2.lbl.gov/

Smit, Berend

2011-06-08T23:59:59.000Z

166

Theory of carbon nanotube growth  

Science Journals Connector (OSTI)

The kinetics of carbon nanotube growth under arc discharge conditions were investigated over different length and time scales using complementary numerical techniques. Relaxation by ab initio molecular dynamics (Car-Parrinello method) shows that large electric fields present at the tube tips are not the critical factor responsible for the open-ended growth observed experimentally. Classical molecular-dynamics simulations using realistic many-body carbon-carbon potentials show that wide tubes that are initially open can continue to grow straight and maintain an all-hexagonal structure. However, tubes narrower than a critical diameter, estimated to be about ?3 nm, readily nucleate curved, pentagonal structures that lead to tube closure with further addition of atoms. Very narrow tubes can be grown, however, if a small metal particle prevents tube closure. This effect was simulated explicitly by kinetic Monte Carlo methods. Monte Carlo simulations were also used to study nanotube growth over longer time scales. The resulting structures are in agreement with the above growth scenario, and provide an estimate for the lowest tube tip temperature necessary for the growth of nanotubes.

A. Maiti; C. J. Brabec; C. Roland; J. Bernholc

1995-11-15T23:59:59.000Z

167

Preindustrial-Control and Twentieth-Century Carbon Cycle Experiments with the Earth System Model CESM1(BGC)  

Science Journals Connector (OSTI)

Version 1 of the Community Earth System Model, in the configuration where its full carbon cycle is enabled, is introduced and documented. In this configuration, the terrestrial biogeochemical model, which includes carbon–nitrogen dynamics and is ...

Keith Lindsay; Gordon B. Bonan; Scott C. Doney; Forrest M. Hoffman; David M. Lawrence; Matthew C. Long; Natalie M. Mahowald; J. Keith Moore; James T. Randerson; Peter E. Thornton

2014-12-01T23:59:59.000Z

168

Acetylenic carbon allotrope  

DOE Patents [OSTI]

A fourth allotrope of carbon, an acetylenic carbon allotrope, is described. The acetylenic carbon allotropes of the present invention are more soluble than the other known carbon allotropes in many common organic solvents and possesses other desirable characteristics, e.g. high electron density, ability to burn cleanly, and electrical conductive properties. Many uses for this fourth allotrope are described herein. 17 figs.

Lagow, R.J.

1998-02-10T23:59:59.000Z

169

The Woodland Carbon Code  

E-Print Network [OSTI]

The Woodland Carbon Code While society must continue to make every effort to reduce greenhouse gas a role by removing carbon dioxide from the atmosphere. The potential of woodlands to soak up carbon to help compensate for their carbon emissions. But before investing in such projects, people want to know

170

Innovation and the dynamics of global warming  

Science Journals Connector (OSTI)

Abstract Global warming and the carbon cycle are a dynamic system with positive feedbacks. Fossil fuels are exhaustible resources. These two facts mean that innovation in clean energy technology, rather than mitigating global warming, can lead to a permanently higher temperature path. This paper explores the impact of innovation in the simplest model linking the economic theory of exhaustible resources with positive feedback dynamics in the carbon cycle.

Ralph A. Winter

2014-01-01T23:59:59.000Z

171

Mesoporous carbon materials  

DOE Patents [OSTI]

A conductive mesoporous carbon composite comprising conductive carbon nanoparticles contained within a mesoporous carbon matrix, wherein the conductive mesoporous carbon composite possesses at least a portion of mesopores having a pore size of at least 10 nm and up to 50 nm, and wherein the mesopores are either within the mesoporous carbon matrix, or are spacings delineated by surfaces of said conductive carbon nanoparticles when said conductive carbon nanoparticles are fused with each other, or both. Methods for producing the above-described composite, devices incorporating them (e.g., lithium batteries), and methods of using them, are also described.

Dai, Sheng; Fulvio, Pasquale Fernando; Mayes, Richard T.; Wang, Xiqing; Sun, Xiao-Guang; Guo, Bingkun

2014-09-09T23:59:59.000Z

172

Ultrafast Nonlinear Spectroscopy of Semiconducting Carbon Nanotubes  

E-Print Network [OSTI]

metallic nanotubes . . . . . . . . . . . . . . . . . Carbon2 Carbon Nanotubes Physical and ElectronicStructure of Carbon Nanotubes . . . . . . . . . .

Graham, Matthew Werden

2010-01-01T23:59:59.000Z

173

Ultrafast Nonlinear Spectroscopy of Semiconducting Carbon Nanotubes  

E-Print Network [OSTI]

2 Carbon Nanotubes Physical andElectronic Structure of Carbon Nanotubes . . . . . . . . . .Photophysics in Semiconducting Carbon Nanotubes . . . . .

Graham, Matthew Werden

2010-01-01T23:59:59.000Z

174

Gas Phase Reaction with FT-ICR and Molecular Dynamics Simulation of Precursor Clusters for SWNTs  

E-Print Network [OSTI]

of the random cage delayed the annealing of the cage. Number of Carbon Atoms Intensity(arbitrary) NiC38 ­ CoC38 dynamics simulations of metal-containing carbon cluster formation were performed. Metal-carbon binary clusters were generated by the laser vaporization of Ni/Co or Ni/Y loaded carbon materials used

Maruyama, Shigeo

175

A 10-year content analysis to assess research theme areas in agricultural education: gap analysis of future research priorities in the discipline.  

E-Print Network [OSTI]

A 10?YEAR CONTENT ANALYSIS TO ASSESS RESEARCH THEME AREAS IN AGRICULTURAL EDUCATION: GAP ANALYSIS OF FUTURE RESEARCH PRIORITIES IN THE DISCIPLINE A Dissertation by LESLIE DAWN JENKINS EDGAR Submitted to the Office of Graduate... IN AGRICULTURAL EDUCATION: GAP ANALYSIS OF FUTURE RESEARCH PRIORITIES IN THE DISCIPLINE A Dissertation by LESLIE DAWN JENKINS EDGAR Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements...

Edgar, Leslie Dawn

2009-05-15T23:59:59.000Z

176

Growth Energetics of Carbon Nanotubes  

Science Journals Connector (OSTI)

The growth energetics of carbon nanotubes during arc discharge conditions are investigated. Ab initio molecular dynamics calcualtions show that the electric field alone cannot stabilize the growth of open metallic tubes. The addition of atoms and small clusters to tubes were studied using realistic atomic potentials. Deposition on tubes narrower than Å3 nm leads to nucleation of curved defects (adjacent pentagon pairs) and eventual tube closure, while deposition on wider tubes favors the formation of hexagons and isolated pentagons, thereby promoting open-ended growth.

A. Maiti; C. J. Brabec; C. M. Roland; J. Bernholc

1994-10-31T23:59:59.000Z

177

Phonons in narrow carbon nanotubes  

Science Journals Connector (OSTI)

Accurate calculations of the phonon dispersion relations, phonon density of states, and phonon eigenvectors of the narrow single-wall carbon nanotubes in optimized geometry are carried out. The method applied is based on the force constants for graphene which reflect the long-range character of the dynamical matrix. Further, the relaxation and symmetry imposed modifications of the force constants are performed and the calculations are carried out by means of the fully symmetry implemented POLSym code. Shortcomings of the widely used frozen phonon model are overcome. The results obtained are compared to the Raman scattering measurements on the zeolite-grown nanotubes.

Ivanka Miloševi?; Edib Dobardži?; Milan Damnjanovi?

2005-08-09T23:59:59.000Z

178

Carbon International | Open Energy Information  

Open Energy Info (EERE)

Kingdom Zip: NW1 8LH Sector: Carbon Product: London-based energy and communications agency specialising in low carbon energy and climate change. References: Carbon...

179

Carbon Nanostructure-Based Sensors  

E-Print Network [OSTI]

Control of Single-Walled Carbon Nanotube Functionalization.M. S. Characterizing carbon nanotube samples with resonancewith a Single-Walled Carbon Nanotube Capacitor. Science

Sarkar, Tapan

2012-01-01T23:59:59.000Z

180

Method of making carbon-carbon composites  

DOE Patents [OSTI]

A process for making a carbon-carbon composite having a combination of high crystallinity, high strength, high modulus and high thermal and electrical conductivity. High-modulus/high-strength mesophase derived carbon fibers are woven into a suitable cloth. Layers of this easily graphitizable woven cloth are covered with petroleum or coal tar pitch and pressed at a temperature a few degrees above the softening point of the pitch to form a green laminated composite. The green composite is restrained in a suitable fixture and heated slowly to carbonize the pitch binder. The carbonized composite is then impregnated several times with pitch by covering the composite with hot pitch under pressure. The composites are given a heat treatment between each impregnation step to crack up the infiltrated carbon and allow additional pitch to enter the microstructure during the next impregnation cycle. The impregnated composites are then given a final heat treatment in the range 2500.degree. to 3000.degree. C. to fully graphitize the fibers and the matrix carbon. The composites are then infiltrated with pyrolytic carbon by chemical vapor deposition in the range 1000.degree. to 1300.degree. C. at a reduced pressure for approximately one hundred and fifty (150) hours.

Engle, Glen B. (16716 Martincoit Rd., Poway, CA 92064)

1991-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Carbon nanotube nanoelectrode arrays  

DOE Patents [OSTI]

The present invention relates to microelectode arrays (MEAs), and more particularly to carbon nanotube nanoelectrode arrays (CNT-NEAs) for chemical and biological sensing, and methods of use. A nanoelectrode array includes a carbon nanotube material comprising an array of substantially linear carbon nanotubes each having a proximal end and a distal end, the proximal end of the carbon nanotubes are attached to a catalyst substrate material so as to form the array with a pre-determined site density, wherein the carbon nanotubes are aligned with respect to one another within the array; an electrically insulating layer on the surface of the carbon nanotube material, whereby the distal end of the carbon nanotubes extend beyond the electrically insulating layer; a second adhesive electrically insulating layer on the surface of the electrically insulating layer, whereby the distal end of the carbon nanotubes extend beyond the second adhesive electrically insulating layer; and a metal wire attached to the catalyst substrate material.

Ren, Zhifeng (Newton, MA); Lin, Yuehe (Richland, WA); Yantasee, Wassana (Richland, WA); Liu, Guodong (Fargo, ND); Lu, Fang (Burlingame, CA); Tu, Yi (Camarillo, CA)

2008-11-18T23:59:59.000Z

182

Quantifying Carbon Cycle Feedbacks  

Science Journals Connector (OSTI)

Perturbations to the carbon cycle could constitute large feedbacks on future changes in atmospheric CO2 concentration and climate. This paper demonstrates how carbon cycle feedback can be expressed in formally similar ways to climate feedback, ...

J. M. Gregory; C. D. Jones; P. Cadule; P. Friedlingstein

2009-10-01T23:59:59.000Z

183

Carbon Monoxide Safety Tips  

E-Print Network [OSTI]

Protect yourself and your family from the deadly effects of carbon monoxide--a colorless, odorless poisonous gas. This publication describes the warning signs of carbon monoxide exposure and includes a home safety checklist....

Shaw, Bryan W.; Garcia, Monica L.

1999-07-26T23:59:59.000Z

184

Terrestrial Carbon Management  

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

Terrestrial Carbon Management Data Sets and Analyses Terrestrial Carbon Management Data Sets and Analyses Carbon Accumulation with Cropland Management Influence of Agricultural Management on Soil Organic Carbon: A Compendium and Assessment of Canadian Studies (VandenBygaart et al., Agriculture and Agri-Food Canada) Soil Carbon Sequestration by Tillage and Crop Rotation: A Global Data Analysis (West and Post, Oak Ridge National Laboratory) Preliminary Estimates of the Potential for Carbon Mitigation in European Soils Through No-Till Farming (Smith et al., University of Aberdeen, United Kingdom) Potential for Carbon Sequestration in European Soils: Preliminary Estimates for Five Scenarios Using Results from Long-Term Experiments (Smith et al., University of Aberdeen, United Kingdom) Carbon Accumulation with Grassland Management

185

Supernova: Carbon detonation redux  

Science Journals Connector (OSTI)

... A DECADE ago carbon detonation was all the rage among supernova theorists. The idea was that the characteristic burst ... wind.

J. Craig Wheeler

1983-03-17T23:59:59.000Z

186

Carbon Capital | Open Energy Information  

Open Energy Info (EERE)

Sector: Carbon Product: Manages a carbon fund specialised in forestry projects References: Carbon Capital1 This article is a stub. You can help OpenEI by expanding it. Carbon...

187

Kinetics Of Carbon Gasification  

Science Journals Connector (OSTI)

Kinetics Of Carbon Gasification ... The steam–carbon reaction, which is the essential reaction of the gasification processes of carbon-based feed stocks (e.g., coal and biomass), produces synthesis gas (H2 + CO), a synthetically flexible, environmentally benign energy source. ... Coal Gasification in CO2 and Steam:? Development of a Steam Injection Facility for High-Pressure Wire-Mesh Reactors ...

C. W. Zielke; Everett. Gorin

1957-03-01T23:59:59.000Z

188

How Carbon Capture Works  

Broader source: Energy.gov [DOE]

Carbon capture, utilization and storage is a process that captures carbon dioxide emissions from sources like coal-fired power plants and either reuses or stores it so it will not enter the atmosphere. We'll break down the process step by step so you can learn how this technology can help us lower our carbon pollution.

189

Intro to Carbon Sequestration  

ScienceCinema (OSTI)

NETL's Carbon Sequestration Program is helping to develop technologies to capture, purify, and store carbon dioxide (CO2) in order to reduce greenhouse gas emissions without adversely influencing energy use or hindering economic growth. Carbon sequestration technologies capture and store CO2 that would otherwise reside in the atmosphere for long periods of time.

None

2010-01-08T23:59:59.000Z

190

Carbon Connections | Open Energy Information  

Open Energy Info (EERE)

Product: Carbon Connections links partner universities with industry encouraging knowledge exchange and developing innovative ideas. References: Carbon Connections1 This...

191

Extension of the supercritical carbon dioxide brayton cycle to low reactor power operation: investigations using the coupled anl plant dynamics code-SAS4A/SASSYS-1 liquid metal reactor code system.  

SciTech Connect (OSTI)

Significant progress has been made on the development of a control strategy for the supercritical carbon dioxide (S-CO{sub 2}) Brayton cycle enabling removal of power from an autonomous load following Sodium-Cooled Fast Reactor (SFR) down to decay heat levels such that the S-CO{sub 2} cycle can be used to cool the reactor until decay heat can be removed by the normal shutdown heat removal system or a passive decay heat removal system such as Direct Reactor Auxiliary Cooling System (DRACS) loops with DRACS in-vessel heat exchangers. This capability of the new control strategy eliminates the need for use of a separate shutdown heat removal system which might also use supercritical CO{sub 2}. It has been found that this capability can be achieved by introducing a new control mechanism involving shaft speed control for the common shaft joining the turbine and two compressors following reduction of the load demand from the electrical grid to zero. Following disconnection of the generator from the electrical grid, heat is removed from the intermediate sodium circuit through the sodium-to-CO{sub 2} heat exchanger, the turbine solely drives the two compressors, and heat is rejected from the cycle through the CO{sub 2}-to-water cooler. To investigate the effectiveness of shaft speed control, calculations are carried out using the coupled Plant Dynamics Code-SAS4A/SASSYS-1 code for a linear load reduction transient for a 1000 MWt metallic-fueled SFR with autonomous load following. No deliberate motion of control rods or adjustment of sodium pump speeds is assumed to take place. It is assumed that the S-CO{sub 2} turbomachinery shaft speed linearly decreases from 100 to 20% nominal following reduction of grid load to zero. The reactor power is calculated to autonomously decrease down to 3% nominal providing a lengthy window in time for the switchover to the normal shutdown heat removal system or for a passive decay heat removal system to become effective. However, the calculations reveal that the compressor conditions are calculated to approach surge such that the need for a surge control system for each compressor is identified. Thus, it is demonstrated that the S-CO{sub 2} cycle can operate in the initial decay heat removal mode even with autonomous reactor control. Because external power is not needed to drive the compressors, the results show that the S-CO{sub 2} cycle can be used for initial decay heat removal for a lengthy interval in time in the absence of any off-site electrical power. The turbine provides sufficient power to drive the compressors. Combined with autonomous reactor control, this represents a significant safety advantage of the S-CO{sub 2} cycle by maintaining removal of the reactor power until the core decay heat falls to levels well below those for which the passive decay heat removal system is designed. The new control strategy is an alternative to a split-shaft layout involving separate power and compressor turbines which had previously been identified as a promising approach enabling heat removal from a SFR at low power levels. The current results indicate that the split-shaft configuration does not provide any significant benefits for the S-CO{sub 2} cycle over the current single-shaft layout with shaft speed control. It has been demonstrated that when connected to the grid the single-shaft cycle can effectively follow the load over the entire range. No compressor speed variation is needed while power is delivered to the grid. When the system is disconnected from the grid, the shaft speed can be changed as effectively as it would be with the split-shaft arrangement. In the split-shaft configuration, zero generator power means disconnection of the power turbine, such that the resulting system will be almost identical to the single-shaft arrangement. Without this advantage of the split-shaft configuration, the economic benefits of the single-shaft arrangement, provided by just one turbine and lower losses at the design point, are more important to the overall cycle performance. Therefore, the single-shaft

Moisseytsev, A.; Sienicki, J. J. (Nuclear Engineering Division)

2012-05-10T23:59:59.000Z

192

Geographies of peak oil: The other carbon problem  

Science Journals Connector (OSTI)

This extended editorial introduction to a themed issue of Geoforum on geographies of peak oil has three objectives. First, it provides a concise account of the ’peak oil’ claim, identifying the key protagonists in the debate, and outlining different stances with regard to the timing, shape and composition (conventional vs. non-conventional hydrocarbons) of the peak. Second, after briefly characterising the limited engagement with peak oil by human geographers, it offers a provisional set of claims about what a geographical analysis of peak oil might yield. Finally, it introduces each of the papers and, in doing so, makes the case for a fuller and more sustained engagement by geography with this ’other carbon problem.’

Gavin Bridge

2010-01-01T23:59:59.000Z

193

Potential of Silicon Carbide-Derived Carbon for Carbon Capture  

Science Journals Connector (OSTI)

Potential of Silicon Carbide-Derived Carbon for Carbon Capture ... In contrast to conventional carbons made from natural precursors, carbide derived carbons (CDCs),(8, 10-13) being synthesized from an inorganic source, have no polar functional groups and are composed of purely covalently bonded carbon. ...

S. K. Bhatia; T. X. Nguyen

2011-08-08T23:59:59.000Z

194

Carbon Sequestration via Mineral Carbonation: Overview and Assessment  

E-Print Network [OSTI]

1 Carbon Sequestration via Mineral Carbonation: Overview and Assessment 14 March 2002 Howard Herzog overview and assessment of carbon sequestration by mineral carbonation (referred to as "mineral sequestration R&D. The first is that carbonates have a lower energy state than CO2. Therefore, at least

195

Carbon RRLs Carbon RRLs towards Ultra-compact HII Regions  

E-Print Network [OSTI]

Carbon RRLs Carbon RRLs towards Ultra-compact HII Regions Dana S. Balser D. Anish Roshi (Raman (Agnes Scott College) #12;Carbon RRLs Carbon Radio Recombination Lines (RRLs) NGC 2024 (Orion B) IC 1795 (W3) Palmer et al. (1967) #12;Carbon RRLs Photodissociation Regions (PDRs) Hollenbach & Tielens (1997

Balser, Dana S.

196

Would Border Carbon Adjustments prevent carbon leakage and heavy industry  

E-Print Network [OSTI]

No 52-2013 Would Border Carbon Adjustments prevent carbon leakage and heavy industry halshs-00870689,version1-7Oct2013 #12;Would Border Carbon Adjustments prevent carbon leakage and heavy The efficiency of unilateral climate policies may be hampered by carbon leakage and competitiveness losses

Paris-Sud XI, Université de

197

Cumulative Carbon and Just Allocation of the Global Carbon Commons  

E-Print Network [OSTI]

Cumulative Carbon and Just Allocation of the Global Carbon Commons R.T. Pierrehumbert1 on climate can be characterized by a single statistic, called Cumulative Carbon. This is the aggregate amount of carbon emitted in the form of carbon dioxide by activities such as fossil fuel burning and deforestation

Pierrehumbert, Raymond

198

Carbon Emissions: Food Industry  

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

Food Industry Food Industry Carbon Emissions in the Food Industry The Industry at a Glance, 1994 (SIC Code: 20) Total Energy-Related Emissions: 24.4 million metric tons of carbon (MMTC) -- Pct. of All Manufacturers: 6.6% Total First Use of Energy: 1,193 trillion Btu -- Pct. of All Manufacturers: 5.5% Carbon Intensity: 20.44 MMTC per quadrillion Btu Energy Information Administration, "1994 Manufacturing Energy Consumption Survey" and Emissions of Greenhouse Gases in the United States 1998 Energy-Related Carbon Emissions, 1994 Source of Carbon Carbon Emissions (million metric tons) All Energy Sources 24.4 Net Electricity 9.8 Natural Gas 9.1 Coal 4.2 All Other Sources 1.3 Energy Information Administration, "1994 Manufacturing Energy Consumption Survey" and Emissions of Greenhouse Gases in the United States 1998

199

Carbon Emissions: Chemicals Industry  

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

Chemicals Industry Chemicals Industry Carbon Emissions in the Chemicals Industry The Industry at a Glance, 1994 (SIC Code: 28) Total Energy-Related Emissions: 78.3 million metric tons of carbon (MMTC) -- Pct. of All Manufacturers: 21.1% -- Nonfuel Emissions: 12.0 MMTC Total First Use of Energy: 5,328 trillion Btu -- Pct. of All Manufacturers: 24.6% Energy Sources Used As Feedstocks: 2,297 trillion Btu -- LPG: 1,365 trillion Btu -- Natural Gas: 674 trillion Btu Carbon Intensity: 14.70 MMTC per quadrillion Btu Energy Information Administration, "1994 Manufacturing Energy Consumption Survey" and Emissions of Greenhouse Gases in the United States 1998 Energy-Related Carbon Emissions, 1994 Source of Carbon Carbon Emissions (million metric tons) All Energy Sources 78.3 Natural Gas 32.1

200

The Carbon Cycle  

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

The Carbon Cycle The Carbon Cycle The global carbon cycle involves the carbon in and exchanging between the earth's atmosphere, fossil fuels, the oceans, and the vegetation and soils of the earth's terrestrial ecosystems. image Each year, the world's terrestrial ecosystems withdraw carbon from the atmosphere through photosynthesis and add it again through respiration and decay. A more detailed look at the global carbon cycle for the 1990s is shown below. The main annual fluxes in GtC yr-1 are: pre-industrial "natural" fluxes in black and "anthropogenic" fluxes in red (modified from Sarmiento and Gruber, 2006, with changes in pool sizes from Sabine et al., 2004a). The net terrestrial loss of -39 GtC is inferred from cumulative fossil fuel emissions minus atmospheric increase minus ocean storage. The loss of

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Carbon Emissions: Paper Industry  

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

Paper Industry Paper Industry Carbon Emissions in the Paper Industry The Industry at a Glance, 1994 (SIC Code: 26) Total Energy-Related Emissions: 31.6 million metric tons of carbon (MMTC) -- Pct. of All Manufacturers: 8.5% Total First Use of Energy: 2,665 trillion Btu -- Pct. of All Manufacturers: 12.3% -- Pct. Renewable Energy: 47.7% Carbon Intensity: 11.88 MMTC per quadrillion Btu Renewable Energy Sources (no net emissions): -- Pulping liquor: 882 trillion Btu -- Wood chips and bark: 389 trillion Btu Energy Information Administration, "1994 Manufacturing Energy Consumption Survey" and Emissions of Greenhouse Gases in the United States 1998 Energy-Related Carbon Emissions, 1994 Source of Carbon Carbon Emissions (million metric tons) All Energy Sources 31.6 Net Electricity 11.0

202

NETL: Carbon Storage  

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

Storage Storage Technologies Carbon Storage (formerly referred to as the "Carbon Sequestration Program") Program Overview For quick navigation of NETL's Carbon Storage Program website, please click on the image. NETL's Carbon Storage Program Fossil fuels are considered the most dependable, cost-effective energy source in the world. The availability of these fuels to provide clean, affordable energy is essential for domestic and global prosperity and security well into the 21st century. However, a balance is needed between energy security and concerns over the impacts of concentrations of greenhouse gases (GHGs) in the atmosphere - particularly carbon dioxide (CO2). NETL's Carbon Storage Program is developing a technology portfolio of safe, cost-effective, commercial-scale CO2 capture, storage, and mitigation

203

Striving To Capture Carbon  

Science Journals Connector (OSTI)

Striving To Capture Carbon ... Energy ministers from around the world met in Washington, D.C., for three days earlier this month to wrestle with how to reenergize efforts to cut carbon emissions from coal-fired power plants. ... Their solution, not surprisingly, is a rapid acceleration of R&D for technologies that capture and sequester underground carbon dioxide emitted by power plants, refineries, and industrial manufacturers that burn fossil fuels. ...

JEFF JOHNSON

2013-11-25T23:59:59.000Z

204

Paraconductivity in carbon nanotubes  

Science Journals Connector (OSTI)

We report the calculation of paraconductivity in carbon nanotubes above the superconducting transition temperature. The complex behavior of paraconductivity depending upon the tube radius, temperature, and magnetic field strength is analyzed. The results are qualitatively compared with recent experimental observations in carbon nanotubes of an inherent transition to the superconducting state and pronounced thermodynamic fluctuations above Tc. The application of our results to single-wall and multiwall carbon nanotubes as well as ropes of nanotubes is discussed.

D. V. Livanov and A. A. Varlamov

2002-09-27T23:59:59.000Z

205

Carbon Sequestration - Public Meeting  

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

Public Meeting Programmatic Environmental Impact Statement Public Meeting May 18, 2004 National Energy Technology Laboratory Office of Fossil Energy Scott Klara Carbon Sequestration Technology Manager Carbon Sequestration Program Overview * What is Carbon Sequestration * The Fossil Energy Situation * Greenhouse Gas Implications * Pathways to Greenhouse Gas Stabilization * Sequestration Program Overview * Program Requirements & Structure * Regional Partnerships * FutureGen * Sources of Information What is Carbon Sequestration? Capture can occur: * at the point of emission * when absorbed from air Storage locations include: * underground reservoirs * dissolved in deep oceans * converted to solid materials * trees, grasses, soils, or algae Capture and storage of CO 2 and other Greenhouse Gases that

206

NETL: Carbon Storage - Infrastructure  

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

Infrastructure Infrastructure Carbon Storage Infrastructure The Infrastructure Element of DOE's Carbon Storage Program is focused on research and development (R&D) initiatives to advance geologic CO2 storage toward commercialization. DOE determined early in the program's development that addressing CO2 mitigation on a regional level is the most effective way to address differences in geology, climate, population density, infrastructure, and socioeconomic development. This element includes the following efforts designed to support the development of regional infrastructure for carbon capture and storage (CCS). Click on Image to Navigate Infrastructure Content on this page requires a newer version of Adobe Flash Player. Get Adobe Flash player Regional Carbon Sequestration Partnerships (RCSP) - This

207

Carbon Sequestration 101  

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

R&D Overview R&D Overview Office of Fossil Energy Justin "Judd" R. Swift Asst. Secretary for International Affairs Office of Fossil Energy U.S. Department of Energy 2 nd U.S/China CO 2 Emission Control Science & Technology Symposium May 28-29, 2008 Hangzhou, China Office of Fossil Energy Technological Carbon Management Options Improve Efficiency Sequester Carbon  Renewables  Nuclear  Fuel Switching  Demand Side  Supply Side  Capture & Store  Enhance Natural Sinks Reduce Carbon Intensity All options needed to:  Affordably meet energy demand  Address environmental objectives Office of Fossil Energy DOE's Sequestration Program Structure Infrastructure Regional Carbon Sequestration

208

Activated Carbon Injection  

ScienceCinema (OSTI)

History of the Clean Air Act and how the injection of carbon into a coal power plant's flu smoke can reduce the amount of mercury in the smoke.

None

2014-07-22T23:59:59.000Z

209

Carbon Capture and Storage  

Science Journals Connector (OSTI)

Shift to alternative energy sources, which have been introduced in Chap.  8 .... They are effective in air pollution control as well as carbon

Zhongchao Tan

2014-01-01T23:59:59.000Z

210

Composites of Carbon Nanotubes.  

E-Print Network [OSTI]

??The purpose of this research was to study various methods of incorporation of single-walled carbon nanotubes (SWNT) with polymers for producing electrically conductive polystyrene composites.… (more)

Tchoul, Maxim N.

2008-01-01T23:59:59.000Z

211

Reinforced Carbon Nanotubes.  

DOE Patents [OSTI]

The present invention relates generally to reinforced carbon nanotubes, and more particularly to reinforced carbon nanotubes having a plurality of microparticulate carbide or oxide materials formed substantially on the surface of such reinforced carbon nanotubes composite materials. In particular, the present invention provides reinforced carbon nanotubes (CNTs) having a plurality of boron carbide nanolumps formed substantially on a surface of the reinforced CNTs that provide a reinforcing effect on CNTs, enabling their use as effective reinforcing fillers for matrix materials to give high-strength composites. The present invention also provides methods for producing such carbide reinforced CNTs.

Ren, Zhifen (Newton, MA); Wen, Jian Guo (Newton, MA); Lao, Jing Y. (Chestnut Hill, MA); Li, Wenzhi (Brookline, MA)

2005-06-28T23:59:59.000Z

212

Carbon Fiber SMC  

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

110,000 ACC capital) in 2008 * 54,000 for 2009 Partners * Continental Structural Plastic (CSP), a Tier One supplier * Discounted compounding and molding * Zoltek, a carbon...

213

Carbon Fiber Technology Facility  

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

- 4M AMO - 1.5M VTP - Remainder covered by carry- over and ARRA project contingency * Cost of carbon fiber * Technology scaling * Market development * Workforce development * Oak...

214

Activated Carbon Injection  

SciTech Connect (OSTI)

History of the Clean Air Act and how the injection of carbon into a coal power plant's flu smoke can reduce the amount of mercury in the smoke.

None

2014-07-16T23:59:59.000Z

215

NETL: Carbon Storage - Reference Shelf  

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

Carbon Storage > Reference Shelf Carbon Storage > Reference Shelf Carbon Storage Reference Shelf Below are links to Carbon Storage Program documents and reference materials. Each of the 10 categories has a variety of documents posted for easy access to current information - just click on the category link to view all related materials. RSS Icon Subscribe to the Carbon Storage RSS Feed. Carbon Storage Collage 2012 Carbon Utilization and Storage Atlas IV Carbon Sequestration Project Portfolio DOE/NETL Carbon Dioxide Capture and Storage RD&D Roadmap Public Outreach and Education for Carbon Storage Projects Carbon Storage Technology Program Plan Carbon Storage Newsletter Archive Impact of the Marcellus Shale Gas Play on Current and Future CCS Activities Site Screening, Selection, and Initial Characterization for Storage of CO2 in Deep Geologic Formations Carbon Storage Systems and Well Management Activities Monitoring, Verification, and Accounting of CO2 Stored in Deep Geologic Formations

216

Time-Resolved Study of Bonding in Liquid Carbon  

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

Time-Resolved Study of Bonding in Liquid Carbon Print Time-Resolved Study of Bonding in Liquid Carbon Print We are accustomed to observing carbon in its elemental form as a solid, ranging from the soft "lead" in pencils to the precious gemstone in diamond rings. While considerable attention has been focused on solid forms of carbon, the properties of liquid carbon are much more difficult to measure accurately. The very strong bonding between carbon atoms that gives diamonds their hardness also makes carbon very difficult to melt, requiring temperatures above 5000 K at pressures above 100 bar. Maintaining such conditions in a laboratory is a challenge that has hampered efforts to fully understand the chemical bonding properties of this biologically, industrially, and environmentally important element. At the ALS, researchers have found a way to rapidly heat a carbon sample and contain the resulting liquid long enough to perform picosecond time-resolved x-ray absorption spectroscopy. The technique provides a way to measure the bonding properties of liquid carbon at near-solid densities that can then be compared with results from molecular dynamics simulations.

217

Time-Resolved Study of Bonding in Liquid Carbon  

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

Time-Resolved Study of Bonding Time-Resolved Study of Bonding in Liquid Carbon Time-Resolved Study of Bonding in Liquid Carbon Print Wednesday, 28 September 2005 00:00 We are accustomed to observing carbon in its elemental form as a solid, ranging from the soft "lead" in pencils to the precious gemstone in diamond rings. While considerable attention has been focused on solid forms of carbon, the properties of liquid carbon are much more difficult to measure accurately. The very strong bonding between carbon atoms that gives diamonds their hardness also makes carbon very difficult to melt, requiring temperatures above 5000 K at pressures above 100 bar. Maintaining such conditions in a laboratory is a challenge that has hampered efforts to fully understand the chemical bonding properties of this biologically, industrially, and environmentally important element. At the ALS, researchers have found a way to rapidly heat a carbon sample and contain the resulting liquid long enough to perform picosecond time-resolved x-ray absorption spectroscopy. The technique provides a way to measure the bonding properties of liquid carbon at near-solid densities that can then be compared with results from molecular dynamics simulations.

218

Time-Resolved Study of Bonding in Liquid Carbon  

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

Time-Resolved Study of Bonding in Liquid Carbon Print Time-Resolved Study of Bonding in Liquid Carbon Print We are accustomed to observing carbon in its elemental form as a solid, ranging from the soft "lead" in pencils to the precious gemstone in diamond rings. While considerable attention has been focused on solid forms of carbon, the properties of liquid carbon are much more difficult to measure accurately. The very strong bonding between carbon atoms that gives diamonds their hardness also makes carbon very difficult to melt, requiring temperatures above 5000 K at pressures above 100 bar. Maintaining such conditions in a laboratory is a challenge that has hampered efforts to fully understand the chemical bonding properties of this biologically, industrially, and environmentally important element. At the ALS, researchers have found a way to rapidly heat a carbon sample and contain the resulting liquid long enough to perform picosecond time-resolved x-ray absorption spectroscopy. The technique provides a way to measure the bonding properties of liquid carbon at near-solid densities that can then be compared with results from molecular dynamics simulations.

219

Time-Resolved Study of Bonding in Liquid Carbon  

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

Time-Resolved Study of Bonding in Liquid Carbon Print Time-Resolved Study of Bonding in Liquid Carbon Print We are accustomed to observing carbon in its elemental form as a solid, ranging from the soft "lead" in pencils to the precious gemstone in diamond rings. While considerable attention has been focused on solid forms of carbon, the properties of liquid carbon are much more difficult to measure accurately. The very strong bonding between carbon atoms that gives diamonds their hardness also makes carbon very difficult to melt, requiring temperatures above 5000 K at pressures above 100 bar. Maintaining such conditions in a laboratory is a challenge that has hampered efforts to fully understand the chemical bonding properties of this biologically, industrially, and environmentally important element. At the ALS, researchers have found a way to rapidly heat a carbon sample and contain the resulting liquid long enough to perform picosecond time-resolved x-ray absorption spectroscopy. The technique provides a way to measure the bonding properties of liquid carbon at near-solid densities that can then be compared with results from molecular dynamics simulations.

220

SGL Carbon AG | Open Energy Information  

Open Energy Info (EERE)

Carbon AG Jump to: navigation, search Name: SGL Carbon AG Place: Wiesbaden, Hessen, Germany Zip: 65203 Sector: Carbon Product: A Germany-based manufacturer of carbon-based...

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Eon Masdar Integrated Carbon | Open Energy Information  

Open Energy Info (EERE)

Carbon Jump to: navigation, search Name: Eon Masdar Integrated Carbon Place: Germany Sector: Carbon Product: Germany-based carbon emission projects developer. References:...

222

EMBODIED CARBON TARIFFS Christoph Bhringer  

E-Print Network [OSTI]

EMBODIED CARBON TARIFFS Christoph Böhringer Jared C. Carbone Thomas F. Rutherford Revised: August 2013 Abstract Embodied carbon tariffs tax the direct and indirect carbon emissions embodied in trade -- an idea popularized by countries seeking to extend the reach of domestic carbon regu- lations. We

223

Haverford Researchers Create Carbon Dioxide-Separating Polymer  

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

Haverford College Haverford College Researchers Create Carbon Dioxide-Separating Polymer Haverford College Researchers Create Carbon Dioxide-Separating Polymer August 1, 2012 | Tags: Basic Energy Sciences (BES), Chemistry, Hopper Rebecca Raber, rraber@haverford.edu, +1 610 896 1038 gtoc.jpg Carbon dioxide gas separation is important for many environmental and energy applications. Molecular dynamics simulations are used to characterize a two-dimensional hydrocarbon polymer, PG-ES1, that uses a combination of surface adsorption and narrow pores to separate carbon dioxide from nitrogen, oxygen, and methane gases. Image by Joshua Schrier, Haverford College. Carbon dioxide is the primary greenhouse gas emitted through human activities, such as the combustion of fossil fuels for energy and

224

Carbon-Optimal and Carbon-Neutral Supply Chains  

E-Print Network [OSTI]

Y. Li, M. Daskin. 2009. Carbon Footprint and the ManagementJ. van Houtum. 2011. E?ect of carbon emission regulations onStreamlined Enterprise Carbon Footprinting. Environmental

Caro, F.; Corbett, C. J.; Tan, T.; Zuidwijk, R.

2011-01-01T23:59:59.000Z

225

Global Carbon Cycle, Carbon Dioxide Emissions and Mitigation  

Science Journals Connector (OSTI)

The carbon cycle is one of the biogeochemical cycles and describes the movement of carbon, in its many forms, within the biosphere, atmosphere, oceans and geosphere. The global carbon cycle involves the earth’...

2008-01-01T23:59:59.000Z

226

Longitudinal solitons in carbon nanotubes  

Science Journals Connector (OSTI)

We present results on soliton excitations in carbon nanotubes (CNT’s) using Brenner’s many-body potential. Our numerical simulations demonstrate high soliton stability in (10,10) CNT’s. The interactions of solitons and solitary excitation with CNT defect are found to be inelastic if the excitations and defects length scales are comparable, resulting in a substantial part of soliton energy being distributed inhomogeneously over the defect bonds. In these solitary-excitation–cap collisions the local energy of a few bonds in the cap can exceed the average energy by an order of magnitude and more. This phenomenon, denoted the “Tsunami effect,” can contribute dynamically to the recently proposed “kinky chemistry.” We also present results of changes in the local density of states and variations in the atomic partial charges estimated at different time instants of the solitary-excitation Tsunami at the nanotube cap.

T. Yu. Astakhova; O. D. Gurin; M. Menon; G. A. Vinogradov

2001-06-27T23:59:59.000Z

227

Dynamic reduced order modeling of entrained flow gasifiers  

E-Print Network [OSTI]

Gasification-based energy systems coupled with carbon dioxide capture and storage technologies have the potential to reduce greenhouse gas emissions from continued use of abundant and secure fossil fuels. Dynamic reduced ...

Monaghan, Rory F. D. (Rory Francis Desmond)

2010-01-01T23:59:59.000Z

228

Predicting and understanding forest dynamics using a simple tractable model  

E-Print Network [OSTI]

the dynamics of size distributions and wood volume and, hence, carbon in even-aged plantation monocul- tures patterns in the biomass, structure, and species composition of forests (4). This problem limits our ability

Lichstein, Jeremy W.

229

Carbonation Mechanism of Reservoir Rock by Supercritical Carbon...  

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

the carbonation reaction mechanisms between supercritical carbon dioxide (scCO2) and reservoir rocks consisting of different mineralogical compositions in aqueous and...

230

Nanomechanics of carbon nanotubes  

Science Journals Connector (OSTI)

...nanotechnology II Nanomechanics of carbon nanotubes Andras Kis 1 * Alex Zettl 2 3 * * Authors...important potential applications of carbon nanotubes are related to their mechanical properties...characterization of the mechanical properties of nanotubes includes a rich variety of experiments...

2008-01-01T23:59:59.000Z

231

Carbon monoxide absorbing liquid  

SciTech Connect (OSTI)

The present disclosure is directed to a carbon monoxide absorbing liquid containing a cuprous ion, hydrochloric acid and titanum trichloride. Titanium trichloride is effective in increasing the carbon monoxide absorption quantity. Furthermore, titanium trichloride remarkably increases the oxygen resistance. Therefore, this absorbing liquid can be used continuously and for a long time.

Arikawa, Y.; Horigome, S.; Kanehori, K.; Katsumoto, M.

1981-07-07T23:59:59.000Z

232

Fly ash carbon passivation  

DOE Patents [OSTI]

A thermal method to passivate the carbon and/or other components in fly ash significantly decreases adsorption. The passivated carbon remains in the fly ash. Heating the fly ash to about 500 and 800 degrees C. under inert gas conditions sharply decreases the amount of surfactant adsorbed by the fly ash recovered after thermal treatment despite the fact that the carbon content remains in the fly ash. Using oxygen and inert gas mixtures, the present invention shows that a thermal treatment to about 500 degrees C. also sharply decreases the surfactant adsorption of the recovered fly ash even though most of the carbon remains intact. Also, thermal treatment to about 800 degrees C. under these same oxidative conditions shows a sharp decrease in surfactant adsorption of the recovered fly ash due to the fact that the carbon has been removed. This experiment simulates the various "carbon burnout" methods and is not a claim in this method. The present invention provides a thermal method of deactivating high carbon fly ash toward adsorption of AEAs while retaining the fly ash carbon. The fly ash can be used, for example, as a partial Portland cement replacement in air-entrained concrete, in conductive and other concretes, and for other applications.

La Count, Robert B; Baltrus, John P; Kern, Douglas G

2013-05-14T23:59:59.000Z

233

Electronic Properties of Carbon Nanotubes  

E-Print Network [OSTI]

P. Avouris, in Carbon Nanotubes M. S. Dresselhaus, P.Physics of Carbon Nanotubes S. V. Rotkin, S. Subramoney,Properties of Carbon Nanotubes Philip G. Collins 1 and

Collins, Philip G

2008-01-01T23:59:59.000Z

234

Carbon Sequestration: A Comparative Analysis  

Science Journals Connector (OSTI)

Carbon sequestration refers to the provision and safe storage of carbon dioxide that otherwise would be emitted to ... isolation, and final storage of the produced carbon dioxide, utilizing biological, chemical, ...

Christopher J. Koroneos; Dimitrios C. Rovas

2010-01-01T23:59:59.000Z

235

Electronic Properties of Carbon Nanotubes  

E-Print Network [OSTI]

P. Avouris, in Carbon Nanotubes M. S. Dresselhaus, P.in Applied Physics of Carbon Nanotubes S. V. Rotkin, S.Electronic Properties of Carbon Nanotubes Philip G. Collins

Collins, Philip G

2008-01-01T23:59:59.000Z

236

Carbon-free generation  

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

Carbon-free generation Carbon-free generation Carbon-free central generation of electricity, either through fossil fuel combustion with carbon dioxide capture and storage or development of renewable sources such as solar, wind, and/or nuclear power, is key to our future energy portfolio. Brookhaven also provides tools and techniques for studying geological carbon dioxide sequestration and analyzing safety issues for nuclear systems. Our nation faces grand challenges: finding alternative and cleaner energy sources and improving efficiency to meet our exponentially growing energy needs. Researchers at Brookhaven National Laboratory are poised to meet these challenges with basic and applied research programs aimed at advancing the effective use of renewable energy through improved conversion,

237

2013 Global Carbon Project  

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

2013 Global Carbon Project 2013 Global Carbon Project DOI: 10.3334/CDIAC/GCP_2013_V1.1 image 2013 Budget v1.1 (November 2013) image 2013 Budget v1.3 (December 2013, contains typographical corrections to 2011 Australia emissions from v1.1 and corrections to the 2011 Australia transfer and consumption emissions from v1.2) image image image image Global Carbon Dioxide Emissions to Reach 36 Billion Tonnes in 2013 Global emissions of carbon dioxide from the combustion of fossil fuels will reach 36 billion tonnes for the year 2013. "This is a level unprecedented in human history," says CSIRO's Dr Pep Canadell, Executive-Director of the Global Carbon Project (GCP) and co-author of a new report. Global emissions due to fossil fuel alone are set to grow this year at a slightly lower pace of 2.1% than the average 3.1% since 2000, reaching 36

238

Chirality dependence of coherent phonon amplitudes in single-wall carbon nanotubes  

E-Print Network [OSTI]

We simulate the ultrafast dynamics of laser-induced coherent phonons in single-wall carbon nanotubes (SWNTs). In particular, we examine the coherent phonon amplitude of the radial breathing mode (RBM) as a function of ...

Dresselhaus, Mildred

239

Acoustic energy dissipation and thermalization in carbon nanotubes: Atomistic modeling and mesoscopic description  

E-Print Network [OSTI]

The exchange of energy between low-frequency mechanical oscillations and high-frequency vibrational modes in carbon nanotubes (CNTs) is a process that plays an important role in a range of dynamic phenomena involving the ...

Nicholson, David A.

240

Black Carbon and the Carbon Cycle  

Science Journals Connector (OSTI)

...reduces net CO 2 release by permanent deforestation...constitute a substantial fraction of the “missing carbon...estimate of oxygen release assuming 10% of...constitute a substantial fraction of sedimentary organic...formation by vegetation fires may be important...from soils becoming airborne by wind erosion...

Thomas A. J. Kuhlbusch

1998-06-19T23:59:59.000Z

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Carbon Capture Research and Development  

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

Center Lawrence Berkeley National Laboratory Research Institute of Innovative Energy Carbon Capture Research and Development Carbon capture and storage from fossil-based power...

242

Carbon Trust | Open Energy Information  

Open Energy Info (EERE)

company funded by the UK government to help business and the public sector cut carbon emissions and capture the commercial potential of low carbon technologies....

243

Pacific Northwest rangeland carbon sequestration.  

E-Print Network [OSTI]

??This paper models the supply curve of carbon sequestration on Pacific Northwest rangelands. Rangeland managers have the ability to sequester carbon in agricultural soils by… (more)

Wiggins, Seth T.

2012-01-01T23:59:59.000Z

244

CARBON SEQUESTRATION STRATEGIES FOR CALIFORNIA  

E-Print Network [OSTI]

GEOLOGIC CARBON SEQUESTRATION STRATEGIES FOR CALIFORNIA: REPORT TO THE LEGISLATURE Regional Carbon Sequestration Partnership (WESTCARB) studies that we used, including Cameron Downey

245

Carbon nanotubes for organic electronics.  

E-Print Network [OSTI]

??This thesis investigated the use of carbon nanotubes as active components in solution processible organic semiconductor devices. We investigated the use of functionalized carbon nanotubes… (more)

Goh, Roland Ghim Siong

2008-01-01T23:59:59.000Z

246

Thermal boundary resistance between single-walled carbon nanotubes and surrounding matrices  

E-Print Network [OSTI]

Thermal boundary resistance between single-walled carbon nanotubes and surrounding matrices Carl Keywords: carbon nanotube, thermal boundary resistance, molecular dynamics 1 #12;I. INTRODUCTION the thermal conductivity of insulating materials15,16 . The mechanical strength and light weight of polymers

Maruyama, Shigeo

247

Highly efficient separation of carbon dioxide by a metal-organic framework replete with  

E-Print Network [OSTI]

Highly efficient separation of carbon dioxide by a metal-organic framework replete with open metal capture of CO2, which is essential for natural gas purifi- cation and CO2 sequestration, has been reported media. carbon dioxide capture dynamic adsorption reticular chemistry Selective removal of CO2 from

Yaghi, Omar M.

248

Bias-dependent amino-acid-induced conductance changes in short semi-metallic carbon nanotubes  

E-Print Network [OSTI]

Bias-dependent amino-acid-induced conductance changes in short semi-metallic carbon nanotubes G the interaction between short semi-metallic carbon nanotubes and different amino acids using molecular dynamics different mechanisms of nanotube-conductance-change upon adsorption of amino acids: one due to the change

Pulfrey, David L.

249

Quantum efficiency of energy transfer in non-covalent carbon nanotube/porphyrin compounds  

E-Print Network [OSTI]

Quantum efficiency of energy transfer in non-covalent carbon nanotube/porphyrin compounds C and the dynamics of the energy transfer. Photoluminescence (PL) experiments conducted on carbon nanotube) Abstract We report on the quantum yield of excitation energy transfer in non-covalently bound nan- otube

Paris-Sud XI, Université de

250

Atomic hydrogen interactions with amorphous carbon thin films Bhavin N. Jariwala,1  

E-Print Network [OSTI]

Atomic hydrogen interactions with amorphous carbon thin films Bhavin N. Jariwala,1 Cristian V-scale interactions of H atoms with hydrogenated amorphous carbon a-C:H films were identified using molecular dynamics through a detailed analysis of the MD trajectories. The MD simulations showed that hydrogenation occurs

Ciobanu, Cristian

251

IMPACCT: Carbon Capture Technology  

SciTech Connect (OSTI)

IMPACCT Project: IMPACCT’s 15 projects seek to develop technologies for existing coal-fired power plants that will lower the cost of carbon capture. Short for “Innovative Materials and Processes for Advanced Carbon Capture Technologies,” the IMPACCT Project is geared toward minimizing the cost of removing carbon dioxide (CO2) from coal-fired power plant exhaust by developing materials and processes that have never before been considered for this application. Retrofitting coal-fired power plants to capture the CO2 they produce would enable greenhouse gas reductions without forcing these plants to close, shifting away from the inexpensive and abundant U.S. coal supply.

None

2012-01-01T23:59:59.000Z

252

Trading Water for Carbon with Biological Carbon Sequestration  

E-Print Network [OSTI]

Trading Water for Carbon with Biological Carbon Sequestration Robert B. Jackson,1 * Esteban G. Farley,1 David C. le Maitre,5 Bruce A. McCarl,6 Brian C. Murray7 Carbon sequestration strategies plantations feature prominently among tools for carbon sequestration (1­8). Plantations typi- cally combine

Nacional de San Luis, Universidad

253

Accelerated Carbonation of Brucite in Mine Tailings for Carbon Sequestration  

Science Journals Connector (OSTI)

Atmospheric CO2 is sequestered within ultramafic mine tailings via carbonation of Mg-bearing minerals. ... If carbonation of bulk tailings were accelerated, large mines may have the capacity to sequester millions of tonnes of CO2 annually, offsetting mine emissions. ... A Greenhouse-Scale Photosynthetic Microbial Bioreactor for Carbon Sequestration in Magnesium Carbonate Minerals ...

Anna L. Harrison; Ian M. Power; Gregory M. Dipple

2012-07-06T23:59:59.000Z

254

Cumulative Carbon and Just Allocation of the Global Carbon Commons  

E-Print Network [OSTI]

Cumulative Carbon and Just Allocation of the Global Carbon Commons R.T. Pierrehumbert* Abstract statistic, called cumulative carbon. This statistic is the aggregate amount ofcarbon emitted in theform such activitiespersist.In thispaper the conceptis usedto addressthe question offair allocation of carbon emissions

Pierrehumbert, Raymond

255

International Conference on Carbon Nanotechnology: Potential and Challenges (Carbon 10)  

E-Print Network [OSTI]

International Conference on Carbon Nanotechnology: Potential and Challenges (Carbon 10) 15 - 17th Since the discovery of the carbon nanotube (CNT) about two decades ago, research related to its of Materials and Process Engineering Kanpur Chapter hosted the `International Conference on Carbon

Srivastava, Kumar Vaibhav

256

Carbon nanotubes : synthesis, characterization, and applications  

E-Print Network [OSTI]

fibers, carbon nanotubes, and carbon capsule structures canand multi-walled nanotubes and carbon fiber, and occurs withMulti- walled carbon nanotubes”, Carbon, v.43, pp.2608-2617,

Deck, Christian Peter

2009-01-01T23:59:59.000Z

257

International low carbon technology transfer: Do intellectual property regimes matter?  

Science Journals Connector (OSTI)

Abstract Transfer of low carbon technologies to developing countries has been recognized as important in global efforts to limit climate change. Yet the mechanics of international technology transfer, especially around intellectual property rights, have remained a controversial issue in international negotiations. Using a new dataset on international partnerships in China and India in three key low carbon technologies—solar photovoltaics, electric vehicles, and coal gasification/integrated gasification combined cycle—and complementary expert interviews we study the dynamics of the transfer of intellectual property and the underlying drivers that guide the development of business strategies and partnerships in the context of transitioning intellectual property regimes in emerging markets. We find that weak intellectual property regimes are indeed a hindrance to the diffusion of certain classes of low carbon technologies: (i) for cutting-edge technologies, (ii) for fully-embodied (explicitly codified) technologies, and (iii) for small firms. However, we also find that intellectual property issues do not represent a barrier to the diffusion of the relatively mature and low to medium cost low carbon technologies that are materially (at scale) most important for carbon dioxide emissions reduction in the short to medium term. Competitive technology supply, shifting market dynamics, and increasingly vigorous domestic innovation coupled with mechanisms and opportunities to structure credible intellectual property deals allow for the diffusion of key low carbon technologies to occur within the context of existing business, political, and institutional structures.

Varun Rai; Kaye Schultz; Erik Funkhouser

2014-01-01T23:59:59.000Z

258

Structural analysis of lignin-derived carbon composite anodes  

Science Journals Connector (OSTI)

Lignin-based carbon composite anodes consisting of nanocrystalline and amorphous domains are studied to develop a relationship of structural properties such as crystallite size, intracrystallite d spacing, crystalline volume fraction and composite density with their pair distribution functions, as obtained from both molecular dynamics simulation and neutron scattering.

McNutt, N.W.

2014-09-04T23:59:59.000Z

259

Carbon Dioxide Capture by Absorption with Potassium Carbonate  

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

Carbon Dioxide Capture by Absorption Carbon Dioxide Capture by Absorption with Potassium Carbonate Background Although alkanolamine solvents, such as monoethanolamine (MEA), and solvent blends have been developed as commercially-viable options for the absorption of carbon dioxide (CO 2 ) from waste gases, natural gas, and hydrogen streams, further process improvements are required to cost-effectively capture CO 2 from power plant flue gas. The promotion of potassium carbonate (K

260

Carbon Capture and Storage  

Science Journals Connector (OSTI)

The main object of the carbon capture and storage (CCS) technologies is the...2...emissions produced in the combustion of fossil fuels such as coal, oil, or natural gas. CCS involves first the capture of the emit...

Ricardo Guerrero-Lemus; José Manuel Martínez-Duart

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Introduction to Carbon Capture  

Science Journals Connector (OSTI)

Chapters 7–9 examine nontraditional separation technologies that in the most ideal sense may be considered carbon-neutral. The topics covered in these chapters include the role that algae plays in CO2 capture, CO

Prof. Jennifer Wilcox

2012-01-01T23:59:59.000Z

262

Low Carbon Fuel Standards  

E-Print Network [OSTI]

S O N I A YE H Low Carbon Fuel Standards The most direct andalternative transportation fuels is to spur innovation withstandard for upstream fuel producers. hen it comes to energy

Sperling, Dan; Yeh, Sonia

2009-01-01T23:59:59.000Z

263

ATK - Supersonic Carbon Capture  

SciTech Connect (OSTI)

ATK and ACEnt Laboratories, with the help of ARPA-E funding, have taken an aerospace problem, supersonic condensation, and turned it into a viable clean energy solution for carbon capture.

Castrogiovanni, Anthony (ACEnT Laboratories, President and CEO) [ACEnT Laboratories, President and CEO; Calayag, Bon (ATK, Program Manager) [ATK, Program Manager

2014-03-05T23:59:59.000Z

264

Carbon Capture Pilots (Kentucky)  

Broader source: Energy.gov [DOE]

Support for the Carbon Management Research Group (CMRG), a public/private partnership consisting of most of the Commonwealth’s utilities, the Electric Power Research Institute, the Center for...

265

Wetland (peat) Carbon Cycle  

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

Wetland (peat) Carbon Cycle Methane (CH4) is an important greenhouse gas, twenty times more potent than CO2, but atmospheric concentrations of CH4 under future climate change are...

266

Research Summary Carbon Additionality  

E-Print Network [OSTI]

of the quality assurance of emissions reduction and carbon sequestration activities, but remains a source of much/reporting additionality rules. Technological Application of specific technology. Term Abatement arises within a specified

267

Method for synthesizing carbon nanotubes  

DOE Patents [OSTI]

A method for preparing a precursor solution for synthesis of carbon nanomaterials, where a polar solvent is added to at least one block copolymer and at least one carbohydrate compound, and the precursor solution is processed using a self-assembly process and subsequent heating to form nanoporous carbon films, porous carbon nanotubes, and porous carbon nanoparticles.

Fan, Hongyou

2012-09-04T23:59:59.000Z

268

4, 1367, 2007 Modelling carbon  

E-Print Network [OSTI]

BGD 4, 13­67, 2007 Modelling carbon overconsumption and extracellular POC formation M. Schartau et carbon overconsumption and the formation of extracellular particulate organic carbon M. Schartau1 , A Correspondence to: M. Schartau (markus.schartau@gkss.de) 13 #12;BGD 4, 13­67, 2007 Modelling carbon

Paris-Sud XI, Université de

269

FT-ICR Reaction Experiments and Molecular Dynamics Simulations of Precursor Clusters for  

E-Print Network [OSTI]

. J. D, 9, 1-4, 385 (1999). 30 40 50 60 70 Number of Carbon Atoms Intensity(arbitrary) Noise (a carbon sample. 520 530 540 43 44 45 Number of Carbon Atoms Intensity(arbitrary) NiC38 ­ CoC38 ­ NiC38(NO mechanism of single walled carbon nanotubes is investigated through experimental and molecular dynamics

Maruyama, Shigeo

270

Estimating Carbon Supply Curves for Global Forests and Other Land Uses |  

Open Energy Info (EERE)

Estimating Carbon Supply Curves for Global Forests and Other Land Uses Estimating Carbon Supply Curves for Global Forests and Other Land Uses Jump to: navigation, search Tool Summary Name: Estimating Carbon Supply Curves for Global Forests and Other Land Uses Agency/Company /Organization: Resources for the Future Sector: Land Focus Area: Forestry, Agriculture Topics: GHG inventory, Resource assessment Resource Type: Guide/manual Website: www.rff.org/documents/RFF-DP-01-19.pdf Estimating Carbon Supply Curves for Global Forests and Other Land Uses Screenshot References: Estimating Carbon Supply Curves for Global Forests and Other Land Uses[1] Abstract "This study develops cumulative carbon "supply curves" for global forests utilizing an dynamic timber supply model for sequestration of forest carbon. Because the period of concern is the next century, and

271

Black Carbon’s Properties and Role in the Environment: A Comprehensive Review  

E-Print Network [OSTI]

H. Can reducing black carbon emissions counteract globalinventory of black carbon emissions. Atmos. Environ. 1993,commonly studied form of carbon emissions. Black carbon (BC)

Shrestha, Gyami

2010-01-01T23:59:59.000Z

272

The lifetime of excess atmospheric carbon dioxide  

SciTech Connect (OSTI)

Since the beginning of the industrial revolution human activity has significantly altered biogeochemical cycling on a global scale. The uncertainties of future climate change rests partly on issues of physical-climate system dynamics and their representation in general circulation models. However understanding the carbon cycle is a key to comprehending the changing terrestrial biosphere and to developing a reasonable range of future concentrations of greenhouse gases. The authors look at correction of model uncertainties in the examination of the lifetime of carbon dioxide. The two difficulties analysed are as follows: (1) most model-derived estimates of the relaxation of the concentration of CO2 reveal a function which is not always well approximated by weighted sums of exponentials; (2) the function c(t) is quite sensitive to assumptions about the terrestrial biosphere and the relaxation experiment. 51 refs., 15 figs., 7 tabs.

Moore, B. III; Braswell, B.H. (Univ. of New Hampshire, Durham, NH (United States))

1994-03-01T23:59:59.000Z

273

Total Carbon Measurement in Soils Using Laser-Induced Breakdown Spectroscopy: Results from the Field and Implications for Carbon Sequestration  

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

Total Carbon Measurement in Soils using Laser-Induced Breakdown Total Carbon Measurement in Soils using Laser-Induced Breakdown Spectroscopy: Results from the Field and Implications for Carbon Sequestration Michael H. Ebinger (mhe@lanl.gov, 505-667-3147) Environmental Dynamics and Spatial Analysis Group (EES-10), MS J495 Earth and Environmental Sciences Division Los Alamos National Laboratory, Los Alamos, NM 87545, USA. David A. Cremers (cremers_david@lanl.gov, 505-665-4180) Advanced Chemical Diagnostics and Instrumentation Group, MS J565 Chemistry Division Los Alamos National Laboratory, Los Alamos, NM 87545 David D. Breshears (daveb@lanl.gov, 505-665-2803) Environmental Dynamics and Spatial Analysis Group (EES-10), MS J495 Earth and Environmental Sciences Division Los Alamos National Laboratory, Los Alamos, NM 87545, USA.

274

Structural Assignments and Dynamics of the A Substates of MbCO: Spectrally Resolved Vibrational Echo Experiments and Molecular Dynamics Simulations  

E-Print Network [OSTI]

Structural Assignments and Dynamics of the A Substates of MbCO: Spectrally Resolved Vibrational of the A1 and A3 spectroscopic substates in the IR spectrum of the carbon monoxide (CO) stretch of carbonmonoxymyoglobin (MbCO). The measured dephasing dynamics of these substates is compared to the dephasing dynamics

Fayer, Michael D.

275

Study of fire retardant behavior of carbon nanotube membranes and carbon nanofiber paper in carbon fiber  

E-Print Network [OSTI]

were incorporated onto the surface of epoxy carbon fiber composites, as proposed fire shieldsStudy of fire retardant behavior of carbon nanotube membranes and carbon nanofiber paper in carbon fiber reinforced epoxy composites Qiang Wu, Wei Zhu, Chuck Zhang *, Zhiyong Liang, Ben Wang Department

Das, Suman

276

Measurement of carbon capture efficiency and stored carbon leakage  

DOE Patents [OSTI]

Data representative of a measured carbon dioxide (CO.sub.2) concentration and of a measured oxygen (O.sub.2) concentration at a measurement location can be used to determine whether the measured carbon dioxide concentration at the measurement location is elevated relative to a baseline carbon dioxide concentration due to escape of carbon dioxide from a source associated with a carbon capture and storage process. Optionally, the data can be used to quantify a carbon dioxide concentration increase at the first location that is attributable to escape of carbon dioxide from the source and to calculate a rate of escape of carbon dioxide from the source by executing a model of gas-phase transport using at least the first carbon dioxide concentration increase. Related systems, methods, and articles of manufacture are also described.

Keeling, Ralph F.; Dubey, Manvendra K.

2013-01-29T23:59:59.000Z

277

Biosystem Dynamics & Design | EMSL  

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

Biosystem Dynamics & Design Overview Atmospheric Aerosol Systems Biosystem Dynamics & Design Energy Materials & Processes Terrestrial & Subsurface Ecosystems Biosystem Dynamics &...

278

Simple Dynamic Gasifier Model That Runs in Aspen Dynamics  

SciTech Connect (OSTI)

Gasification (or partial oxidation) is a vital component of 'clean coal' technology. Sulfur and nitrogen emissions can be reduced, overall energy efficiency is increased, and carbon dioxide recovery and sequestration are facilitated. Gasification units in an electric power generation plant produce a fuel for driving combustion turbines. Gasification units in a chemical plant generate gas, which can be used to produce a wide spectrum of chemical products. Future plants are predicted to be hybrid power/chemical plants with gasification as the key unit operation. The widely used process simulator Aspen Plus provides a library of models that can be used to develop an overall gasifier model that handles solids. So steady-state design and optimization studies of processes with gasifiers can be undertaken. This paper presents a simple approximate method for achieving the objective of having a gasifier model that can be exported into Aspen Dynamics. The basic idea is to use a high molecular weight hydrocarbon that is present in the Aspen library as a pseudofuel. This component should have the same 1:1 hydrogen-to-carbon ratio that is found in coal and biomass. For many plantwide dynamic studies, a rigorous high-fidelity dynamic model of the gasifier is not needed because its dynamics are very fast and the gasifier gas volume is a relatively small fraction of the total volume of the entire plant. The proposed approximate model captures the essential macroscale thermal, flow, composition, and pressure dynamics. This paper does not attempt to optimize the design or control of gasifiers but merely presents an idea of how to dynamically simulate coal gasification in an approximate way.

Robinson, P.J.; Luyben, W.L. [Lehigh University, Bethlehem, PA (United States). Dept. of Chemical Engineering

2008-10-15T23:59:59.000Z

279

The Widening Gyre: Counter-terrorism, Human Rights and the Rule of Law There are two themes that recur in previous Sir David Williams lectures. First, that it is a  

E-Print Network [OSTI]

The Widening Gyre: Counter-terrorism, Human Rights and the Rule of Law There are two themes, and confess that it is with some trepidation that I do so. The subject, terrorism and human rights to terrorism and human rights, the response to my Google search informed me that in .03 seconds 32

de Gispert, Adrià

280

NETL: Carbon Storage - Big Sky Carbon Sequestration Partnership  

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

BSCSP BSCSP Carbon Storage Big Sky Carbon Sequestration Partnership MORE INFO Additional information related to ongoing BSCSP efforts can be found on their website. The Big Sky Carbon Sequestration Partnership (BSCSP) is led by Montana State University-Bozeman and represents a coalition of more than 60 organizations including universities, national laboratories, private companies, state agencies, Native American tribes, and international collaborators. The partners are engaged in several aspects of BSCSP projects and contribute to the efforts to deploy carbon storage projects in the BSCSP region. The BSCSP region encompasses Montana, Wyoming, Idaho, South Dakota, and eastern Washington and Oregon. BSCSP Big Sky Carbon Sequestration Partnership Region Big Sky Carbon Sequestration Partnership Region

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Chemically modified carbonic anhydrases useful in carbon capture systems  

SciTech Connect (OSTI)

The present disclosure relates to chemically modified carbonic anhydrase polypeptides and soluble compositions, homogenous liquid formulations comprising them. The chemically modified carbonic anhydrase polypeptides have improved properties relative to the same carbonic anhydrase polypeptide that is not chemically modified including the improved properties of increased activity and/or stability in the presence of amine compounds, ammonia, or carbonate ion. The present disclosure also provides methods of preparing the chemically modified polypeptides and methods of using the chemically modified polypeptides for accelerating the absorption of carbon dioxide from a gas stream into a solution as well as for the release of the absorbed carbon dioxide for further treatment and/or sequestering.

Novick, Scott; Alvizo, Oscar

2013-01-15T23:59:59.000Z

282

Chemically modified carbonic anhydrases useful in carbon capture systems  

DOE Patents [OSTI]

The present disclosure relates to chemically modified carbonic anhydrase polypeptides and soluble compositions, homogenous liquid formulations comprising them. The chemically modified carbonic anhydrase polypeptides have improved properties relative to the same carbonic anhydrase polypeptide that is not chemically modified including the improved properties of increased activity and/or stability in the presence of amine compounds, ammonia, or carbonate ion. The present disclosure also provides methods of preparing the chemically modified polypeptides and methods of using the chemically modified polypeptides for accelerating the absorption of carbon dioxide from a gas stream into a solution as well as for the release of the absorbed carbon dioxide for further treatment and/or sequestering.

Novick, Scott J; Alvizo, Oscar

2013-10-29T23:59:59.000Z

283

NETL: Carbon Dioxide 101 FAQs  

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

is carbon dioxide? is carbon dioxide? CO2 Dipole Carbon Dioxide Carbon dioxide (chemical name CO2) is a clear gas composed of one atom of carbon (C) and two atoms of oxygen (O). Carbon dioxide is one of many chemical forms of carbon on the Earth. It does not burn, and in standard temperature and pressure conditions it is stable, inert, and non-toxic. Carbon dioxide occurs naturally in small amounts (about 0.04%) in the Earth's atmosphere. The volume of CO2 in the atmosphere is equivalent to one individual in a crowd of 2,500. Carbon dioxide is produced naturally by processes deep within the Earth. This CO2 can be released at the surface by volcanoes or might be trapped in natural underground geologic CO2 deposits, similar to underground deposits of oil and natural gas. As a major greenhouse gas, CO2 helps create and

284

Campuses in Place [Theme Article  

E-Print Network [OSTI]

of them; in-door spaces like libraries and student centers;library collections will continue to expand and require more space.library and a video store on the ground ?oor. Access to these spaces

Halsband, Frances

2005-01-01T23:59:59.000Z

285

Thomas F. Rutherford Optimization Theme  

E-Print Network [OSTI]

electricity policies: employment impacts of Ontario's feed-in tariff, with Christoph Böhringer, Nicholas J

Radeloff, Volker C.

286

Carbon Trading Protocols for Geologic Sequestration  

E-Print Network [OSTI]

H. , 2005, IPCC: Carbon Capture and Storage: Technical05CH11231. INTRODUCTION Carbon capture and storage (CCS)Development Mechanism CCS: Carbon Capture and Storage C02e:

Hoversten, Shanna

2009-01-01T23:59:59.000Z

287

The Social Carbon Company | Open Energy Information  

Open Energy Info (EERE)

Carbon Company Jump to: navigation, search Name: The Social Carbon Company Place: Brasilia, Distrito Federal (Brasilia), Brazil Zip: CEP 70610-440 Sector: Carbon, Services Product:...

288

Carbon Nanohoops: Molecular Templates for Precision Nanotube...  

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

build carbon-ring "nanohoops," molecular building blocks for the formation of carbon nanotubes. Carbon nanohoops might serve as seeds, or templates, for the efficient and...

289

Electrochemical implications of defects in carbon nanotubes  

E-Print Network [OSTI]

in Hollow Carbon Nanotubes . . . . . . 4.3.2.1 IncreasingThe electrochemistry of carbon nanotubes. Journal of Thethe sidewalls of carbon nanotubes. Journal of the American

Hoefer, Mark

2012-01-01T23:59:59.000Z

290

Thermal Management Using Carbon Nanotubes - Energy Innovation...  

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

Thermal Management Using Carbon Nanotubes Oak Ridge National Laboratory Contact ORNL About This Technology Vertically Aligned Carbon Nanotubes Vertically Aligned Carbon Nanotubes...

291

A cell nanoinjector based on carbon nanotubes  

E-Print Network [OSTI]

based on carbon nanotubes Xing Chen *|| , Andras Kis †|| ,that uses carbon nanotubes to deliver cargo into cells. Astrength (2, 3), carbon nanotubes (CNTs) are ideal nanoscale

Chen, Xing; Kis, Andras; Zettl, Alex; Bertozzi, Carolyn R.

2008-01-01T23:59:59.000Z

292

Electron transport through single carbon nanotubes  

E-Print Network [OSTI]

through single carbon nanotubes G. Chai Apollo Technologies,aligned multi-wall carbon nanotubes (CNT). Embedding of CNTsuse of fiber coated carbon nanotubes makes the handling of

Chai, G

2008-01-01T23:59:59.000Z

293

Ultrafast Nonlinear Spectroscopy of Semiconducting Carbon Nanotubes  

E-Print Network [OSTI]

Exciton binding energies in carbon nanotubes from two-photonExciton binding energies in carbon nanotubes from two-photonoptical transition energies of carbon nanotubes: the role of

Graham, Matthew Werden

2010-01-01T23:59:59.000Z

294

Equinox Carbon Equities LLC | Open Energy Information  

Open Energy Info (EERE)

Equities, LLC Place: Newport Beach, California Zip: 92660 Sector: Carbon Product: Investment firm focused on carbon trading References: Equinox Carbon Equities, LLC1 This...

295

Carbon Trust Investments Ltd | Open Energy Information  

Open Energy Info (EERE)

Ltd Place: United Kingdom Sector: Carbon Product: UK-based venture capital investment division of The Carbon Trust. References: Carbon Trust Investments Ltd1 This...

296

Carbon Nanotubes: Bearing Stress Like Never Before  

E-Print Network [OSTI]

Hart, A.J. (2013). Carbon Nanotubes: Present and Futureproduction of carbon nanotubes, and can be used to producesynthesized properly, and carbon nanotubes are no exception.

Limaye, Aditya

2013-01-01T23:59:59.000Z

297

Electrochemical implications of defects in carbon nanotubes  

E-Print Network [OSTI]

parameters. Fullerenes, Nanotubes and Carbon Nanostructures,in Hollow Carbon Nanotubes . . . . . . 4.3.2.1 Increasingmigration in graphite and carbon nanotubes. Chemical Physics

Hoefer, Mark

2012-01-01T23:59:59.000Z

298

Carbon Nanotube and Graphene Nanoelectromechanical Systems  

E-Print Network [OSTI]

Carbon Nanotubes on the2.4 Static Deformation of Carbon Nanotubes . . . . . .3.2 Field Emission from Carbon Nanotubes: Electrostatics

Aleman, Benjamin Jose

2011-01-01T23:59:59.000Z

299

Defects and Disorder in Carbon Nanotubes  

E-Print Network [OSTI]

Perebeinos, V. (2008) Carbon Nanotubes 111 423. Bachilo, S.M. & Mceuen, P. L. (2008) Carbon Nanotubes 111 Biro, L. P. ,sectional structure of carbon nanotubes. Fullerenes '96.

Collins, Philip G

2010-01-01T23:59:59.000Z

300

Electron transport through single carbon nanotubes  

E-Print Network [OSTI]

transport through single carbon nanotubes G. Chai Apolloaligned multi-wall carbon nanotubes (CNT). Embedding of CNTsuse of fiber coated carbon nanotubes makes the handling of

Chai, G

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

How Carbon Capture Works | Department of Energy  

Energy Savers [EERE]

past two decades. Carbon capture, utilization and storage (CCUS) -- also referred to as carbon capture, utilization and sequestration -- is a process that captures carbon dioxide...

302

Participatory Carbon Monitoring: Operational Guidance for National...  

Open Energy Info (EERE)

Participatory Carbon Monitoring: Operational Guidance for National REDD+ Carbon Accounting Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Participatory Carbon...

303

Universal Carbon Credits Limited | Open Energy Information  

Open Energy Info (EERE)

Universal Carbon Credits Limited Jump to: navigation, search Name: Universal Carbon Credits Limited Place: London, England, United Kingdom Zip: EC3A6DF Sector: Carbon Product:...

304

Carbon nanotubes : synthesis, characterization, and applications  

E-Print Network [OSTI]

around Surface-Attached Carbon Nanotubes. Ind. Eng. Chem.the flexural rigidity of carbon nanotube ensembles. AppliedNanotechnology in Carbon Materials. Acta Metallurgica, 1997.

Deck, Christian Peter

2009-01-01T23:59:59.000Z

305

Distributed Energy Resources for Carbon Emissions Mitigation  

E-Print Network [OSTI]

Energy Resources for Carbon Emissions Mitigation RyanEnergy Resources for Carbon Emissions Mitigation Ryanand/or site-attributable carbon emissions at commercial and

Firestone, Ryan; Marnay, Chris

2008-01-01T23:59:59.000Z

306

GS Carbon Corporation | Open Energy Information  

Open Energy Info (EERE)

search Name: GS Carbon Corporation Place: New York, New York Zip: 10119 Sector: Carbon Product: The company offsets emissions output with carbon credits through the...

307

BNL | Carbon Cycle Science  

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

The Carbon Cycle Science & Technology Group aims to increase understanding The Carbon Cycle Science & Technology Group aims to increase understanding of the impacts of global change on managed and unmanaged ecosystems and improve knowledge of possible global change mitigation approaches. The group has three main focus areas. FACE Climate Change Experimental Facility Design and Management The CCS&T group is an internationally recognized leader in the development of Free Air CO2 Enrichment (FACE) research facilities. We are interested in the design and management of manipulative experiments that examine the effects of carbon dioxide, ozone, other atmospheric pollutants, temperature and precipitation on natural and managed ecosystems. FACE Plant Physiology and High Throughput Biochemical Phenotyping At FACE facilities we have studied the mechanisms that underlie the

308

Carbon Sequestration 101  

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

Perspectives on Carbon Capture and Storage Perspectives on Carbon Capture and Storage - Directions, Challenges, and Opportunities Thomas J. Feeley, III National Energy Technology Laboratory Carbon Capture and Storage November 13-15, 2007 Austin, Texas C Capture & Storage, Austin, TX Nov. 13-15, 2007 U.S. Fossil Fuel Reserves / Production Ratio 250+ Year Supply at Current Demand Levels ! 258 11.7 9.7 0 100 200 300 Coal Oil Natural Gas Anthracite & Bituminous Sub- Bituminous & Lignite Sources: BP Statistical Review, June 2004, - for coal reserves data - World Energy Council; EIA, Advance Summary U.S. Crude Oil, Natural Gas, and Natural Gas Liquids Reserves, 2003 Annual Report, September 22, 2004 - for oil and gas reserves data. C Capture & Storage, Austin, TX Nov. 13-15, 2007 80 120 160 200 240 1970 1975 1980

309

Carbon Storage Review 2012  

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

Sequestration Options in the Illinois Basin - Phase III DE-FC26-05NT42588 Robert J. Finley and the MGSC Project Team Illinois State Geological Survey (University of Illinois) and Schlumberger Carbon Services U.S. Department of Energy National Energy Technology Laboratory Carbon Storage R&D Project Review Meeting Developing the Technologies and Building the Infrastructure for CO 2 Storage August 21-23, 2012 * The Midwest Geological Sequestration Consortium is funded by the U.S. Department of Energy through the National Energy Technology Laboratory (NETL) via the Regional Carbon Sequestration Partnership Program (contract number DE-FC26-05NT42588) and by a cost share agreement with the Illinois Department of Commerce and Economic Opportunity, Office of Coal Development through the Illinois Clean Coal

310

RMOTC - Testing - Carbon Management  

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

Carbon Management Carbon Management Ten Sleep Time Structure, 2nd Wall Creek Formation at RMOTC Notice: As of July 15th 2013, the Department of Energy announced the intent to sell Naval Petroleum Reserve Number 3 (NPR3). The sale of NPR-3 will also include the sale of all equipment and materials onsite. A decision has been made by the Department of Energy to complete testing at RMOTC by July 1st, 2014. RMOTC will complete testing in the coming year with the currently scheduled testing partners. For more information on the sale of NPR-3 and sale of RMOTC equipment and materials please join our mailing list here. RMOTC has the field setting, infrastructure, and expertise to play an important role in carbon management testing, demonstration, and research. The unique combination of a publicly-owned and DOE-operated oil field,

311

Success Stories: Carbon Explorer  

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

LBNL Device Monitors Ocean Carbon LBNL Device Monitors Ocean Carbon Imagine waking up each morning and discovering that twenty percent of all plants in your garden had disappeared over night. They had been eaten. Equally astonishing would be the discovery in the afternoon that new plants had taken their place. This is the norm of life in the ocean. Without the ability to accurately observe these daily changes in ocean life cycles, over vast spatial scales, we lack the ability to predict how the ocean will respond to rising CO2 levels, crippling our ability to develop accurate models of global warming or devise strategies to prevent it. The Carbon Explorer, conceived by Berkeley Lab's James K. Bishop in collaboration with Scripps Institution of Oceanography (La Jolla, California) and WET labs, Inc. (Philomath, Oregon), bridges this

312

Carbon Materials Breakout Group  

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

Materials Breakout Group Process Materials Breakout Group Process * Day 2, Thursday - Review results of Day 1 and modify if needed - Identify critical R&D needs - Outline R&D plan with key milestones - Report results to plenary Carbon Materials Breakout Group * Key Results - Target: get the science right to engineer carbon materials for hydrogen storage * Integrate theory, experiment, engineering * Understand mechanisms, effects, and interactions ranging from physisorption to chemisorption - Theory * Provide "directional" guidance for experiments (and vice- versa) * Provide baseline theory to elucidate parameters affecting the number and type of binding sites and the heat of their interaction with H2 (∆H ) for a broad range of (highly) modified carbon materials

313

Authigenic Carbonate and the History of the Global Carbon Cycle  

Science Journals Connector (OSTI)

...Earth's surface reservoirs ({delta} 13 C...of carbonate rocks. In either case, this...history when the porosity and permeability of...track the bulk rock {delta} 13...of carbonate rocks...sedimentary reservoirs does...

Daniel P. Schrag; John. A. Higgins; Francis A. Macdonald; David T. Johnston

2013-02-01T23:59:59.000Z

314

Development of carbon-carbon composites from solvent extracted pitch  

SciTech Connect (OSTI)

There are several methods used to fabricate carbon-carbon composites. One used extensively in the fabrication of aerospace components such as rocket nozzles and reentry vehicle nosetips, as well as commercial components for furnace fixturing and glass manufacturing, is the densification of a woven preform with molten pitch, and the subsequent conversion of the pitch to graphite through heat treatment. Two types of pitch are used in this process; coal tar pitch and petroleum pitch. The objective of this program was to determine if a pitch produced by the direct extraction of coal could be used as a substitute for these pitches in the fabrication of carbon-carbon composites. The program involved comparing solvent extracted pitch with currently accepted pitches and rigidizing a carbon-carbon preform with solvent extracted pitch for comparison with carbon-carbon fabricated with currently available pitch.

NONE

1996-06-24T23:59:59.000Z

315

Carbon Capture and Storage  

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

SECARB's SECARB's Mississippi SalineTest Site: A Field Project Update Robert C. Trautz (rtrautz@epri.com) Electric Power Research Institute Senior Project Manager DOE Regional Carbon Sequestration Partnership Annual Review Meeting October 6-8, 2008 Pittsburgh, PA 2 1. Introduction 2. Well Drilling & Completion 3. Reservoir Characterization 4. CO 2 Injection Operations 5. Monitoring and Verification Outline 3 Key Organizations and Acknowledgments SOUTHERN STATES ENERGY BOARD Dr. Gerald (Jerry) R. Hill OTHER FIELD PROJECTS AND SUPPORTING ACTIVITIES * Advanced Resources * Alabama Geological Survey/ SCS * Gulf Coast Carbon Center (TXBEG) * EPRI * Virginia Tech University * Mississippi State University * Others Richard Esposito MISSISSIPPI POWER CO. Rick Berry Richard (Dick) Rhudy Robert (Rob) Trautz

316

Carbon Capture and Storage  

SciTech Connect (OSTI)

Carbon capture and sequestration (CCS) is the long-term isolation of carbon dioxide from the atmosphere through physical, chemical, biological, or engineered processes. This includes a range of approaches including soil carbon sequestration (e.g., through no-till farming), terrestrial biomass sequestration (e.g., through planting forests), direct ocean injection of CO{sub 2} either onto the deep seafloor or into the intermediate depths, injection into deep geological formations, or even direct conversion of CO{sub 2} to carbonate minerals. Some of these approaches are considered geoengineering (see the appropriate chapter herein). All are considered in the 2005 special report by the Intergovernmental Panel on Climate Change (IPCC 2005). Of the range of options available, geological carbon sequestration (GCS) appears to be the most actionable and economic option for major greenhouse gas reduction in the next 10-30 years. The basis for this interest includes several factors: (1) The potential capacities are large based on initial estimates. Formal estimates for global storage potential vary substantially, but are likely to be between 800 and 3300 Gt of C (3000 and 10,000 Gt of CO{sub 2}), with significant capacity located reasonably near large point sources of the CO{sub 2}. (2) GCS can begin operations with demonstrated technology. Carbon dioxide has been separated from large point sources for nearly 100 years, and has been injected underground for over 30 years (below). (3) Testing of GCS at intermediate scale is feasible. In the US, Canada, and many industrial countries, large CO{sub 2} sources like power plants and refineries lie near prospective storage sites. These plants could be retrofit today and injection begun (while bearing in mind scientific uncertainties and unknowns). Indeed, some have, and three projects described here provide a great deal of information on the operational needs and field implementation of CCS. Part of this interest comes from several key documents written in the last three years that provide information on the status, economics, technology, and impact of CCS. These are cited throughout this text and identified as key references at the end of this manuscript. When coupled with improvements in energy efficiency, renewable energy supplies, and nuclear power, CCS help dramatically reduce current and future emissions (US CCTP 2005, MIT 2007). If CCS is not available as a carbon management option, it will be much more difficult and much more expensive to stabilize atmospheric CO{sub 2} emissions. Recent estimates put the cost of carbon abatement without CCS to be 30-80% higher that if CCS were to be available (Edmonds et al. 2004).

Friedmann, S

2007-10-03T23:59:59.000Z

317

Assessment of carbon stores in tree biomass for two management scenarios in Russia  

Science Journals Connector (OSTI)

Accurate quantification of terrestrial carbon storage and its change is of key importance to improved understanding of global carbon dynamics. Forest management influences carbon sequestration and release patterns, and gap models are well suited for evaluating carbon storage. An individual-based gap model of forest dynamics, FAREAST, is applied across Russia to estimate aboveground carbon storage under management scenarios. Current biomass from inventoried forests across Russia is compared to model-based estimates and potential levels of biomass are estimated for a set of simplified forestry practices. Current carbon storage in eastern Russia was lower than for the northwest and south, and lower than model estimates likely due to high rates of disturbance. Model-derived carbon storage in all regions was not significantly different between the simulated 'current' and hypothetical 'even-aged' management strategies using rotations of 150 and 210 years. Simulations allowing natural maturation and harvest after 150 years show a significant increase in aboveground carbon in all regions. However, it is unlikely that forests would be left unharvested to 150 years of age to attain this condition. These applications indicate the value of stand simulators, applied over broad regions such as Russia, as tools to evaluate the effect of management regimes on aboveground carbon storage.

Jacquelyn K Shuman; Herman H Shugart; Olga N Krankina

2013-01-01T23:59:59.000Z

318

Low Cost Carbon Fiber Production Carbon Fiber Manufacturing Cost Modeling  

E-Print Network [OSTI]

Low Cost Carbon Fiber Production Carbon Fiber Manufacturing Cost Modeling Oak Ridge National fiber reinforced composites have enjoyed limited acceptance in the automotive industry due to high costs to bond with composite matrix material. It is important that a carbon fiber manufacturing cost model

319

ISSUES IN EVALUATING CARBON SEQUESTRATION AND ATTRIBUTING CARBON CREDITS TO GRASSLAND RESTORATION EFFORTS  

E-Print Network [OSTI]

ISSUES IN EVALUATING CARBON SEQUESTRATION AND ATTRIBUTING CARBON CREDITS TO GRASSLAND RESTORATION examines biological carbon sequestration using a grassland restoration as a model system. Chapter 1 for biological carbon sequestration. In this analysis, we found that significantly greater soil carbon

Wisconsin at Madison, University of

320

Carbon Jungle | Open Energy Information  

Open Energy Info (EERE)

Jungle Jungle Jump to: navigation, search Name Carbon Jungle Place El Segundo, California Zip 90246 Sector Carbon Product Carbon Jungle's mission is to decrease CO2 in the atmosphere by planting and managing tree plantations, increasing awareness of the facts behind increased CO2 in the atmosphere, and giving companies a means to participate in carbon credit trading. References Carbon Jungle[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Carbon Jungle is a company located in El Segundo, California . References ↑ "Carbon Jungle" Retrieved from "http://en.openei.org/w/index.php?title=Carbon_Jungle&oldid=343237" Categories: Clean Energy Organizations

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Organic modification of carbon nanotubes  

Science Journals Connector (OSTI)

The organic modification of carbon nanotubes is a novel research field being developed ... and newest progress of organic modification of carbon nanotubes are reviewed from two aspects: organic covalent modificat...

Luqi Liu; Zhixin Guo; Liming Dai; Daoben Zhu

2002-03-01T23:59:59.000Z

322

Irradiation Stability of Carbon Nanotubes  

E-Print Network [OSTI]

Ion irradiation of carbon nanotubes is a tool that can be used to achieve modification of the structure. Irradiation stability of carbon nanotubes was studied by ion and electron bombardment of the samples. Different ion species at various energies...

Aitkaliyeva, Assel

2010-01-14T23:59:59.000Z

323

Asset Carbon | Open Energy Information  

Open Energy Info (EERE)

Carbon Place: United Kingdom Product: UK-based startup looking to invest in CDMJI projects. References: Asset Carbon1 This article is a stub. You can help OpenEI by expanding...

324

Forests, carbon and global climate  

Science Journals Connector (OSTI)

...through fossil-fuel combustion and land-use change...Atmosphere analysis Biomass Carbon metabolism Carbon...through fossil-fuel combustion and land-use change...during fossil fuel and biomass combustion and the release of ammo...

2002-01-01T23:59:59.000Z

325

Carbon smackdown: wind warriors  

ScienceCinema (OSTI)

July 16. 2010 carbon smackdown summer lecture: learn how Berkeley Lab scientists are developing wind turbines to be used in an urban setting, as well as analyzing what it will take to increase the adoption of wind energy in the U.S.

Glen Dahlbacka of the Accelerator & Fusion Research Division and Ryan Wiser of the Environmental Energy Technologies Division are the speakers.

2010-09-01T23:59:59.000Z

326

Carbon-Fuelled Future  

SciTech Connect (OSTI)

Whether due to changes in policy or consumption of available fossil fuels, alternative sources of energy will be required, especially given the rising global energy demand. However, one of the main factors limiting the widespread utilization of renewable energy, such as wind, solar, wave or geothermal, is our ability to store energy. Storage of energy from carbon-neutral sources, such as electricity from solar or wind, can be accomplished through many routes. One approach is to store energy in the form of chemical bonds, as fuels. The conversion of low-energy compounds, such as water and carbon dioxide, to higher energy molecules, such as hydrogen or carbon-based fuels, enables the storage of carbon-neutral energy on a very large scale. The author¹s work in this area is supported by the US Department of Energy Basic Energy Sciences, Division of Chemical Sciences, Geosciences & Biosciences. Pacific Northwest National Laboratory is operated by Battelle for the US Department of Energy.

Appel, Aaron M.

2014-09-12T23:59:59.000Z

327

CARBON DIOXIDE EMISSION REDUCTION  

E-Print Network [OSTI]

.5 Primary Energy Use and Carbon Dioxide Emissions for Selected US Chemical Subsectors in 1994 ...............................................................................................................16 Table 2.7 1999 Energy Consumption and Specific Energy Consumption (SEC) in the U.S. Cement Efficiency Technologies and Measures in Cement Industry.................22 Table 2.9 Energy Consumption

Delaware, University of

328

Carbon Footprint Calculator  

Broader source: Energy.gov [DOE]

This calculator estimates the amount of carbon emissions you and members of your household are responsible for. It does not include emissions associated with your work or getting to work if you commute by public transportation. It was developed by IEEE Spectrum magazine.

329

Phosphate influences cycling of iron and carbon in the environment |  

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

Science Science Computing, Environment & Life Sciences Energy Engineering & Systems Analysis Photon Sciences Physical Sciences & Engineering Energy Frontier Research Centers Science Highlights Postdoctoral Researchers Phosphate influences cycling of iron and carbon in the environment August 30, 2013 Tweet EmailPrint Aquatic and terrestrial environments are dynamic systems where coupled microbiological, geochemical, and hydrological processes define the complex interactions that drive the biogeochemical cycling of water and the major and minor elements. Therefore, a thorough understanding of these complex interactions is critical for predicting the biogeochemical cycling of carbon, nutrients, heavy metals, radionuclides, and other contaminants; managing water quality; and understanding the interactions between

330

Role of Electronic Excitations in Ion Collisions with Carbon Nanostructures  

SciTech Connect (OSTI)

By combining ab initio time-dependent density functional calculations for electrons with molecular dynamics simulations for ions in real time, we investigate the microscopic mechanism of collisions between energetic protons and graphitic carbon nanostructures. We identify not only the amount of energy lost by the projectile, but also the electronic and ionic degrees of freedom of the target that accommodate this energy as a function of the impact parameter and projectile energy. Our results establish validity limits for the Born-Oppenheimer approximation and the threshold energy for defect formation in carbon nanostructures.

Krasheninnikov, Arkady V. [Accelerator Laboratory, P.O. Box 43, FIN-00014 University of Helsinki (Finland); Laboratory of Physics, Helsinki University of Technology, P.O. Box 1100, Helsinki 02015 (Finland); Miyamoto, Yoshiyuki [Nano Electronics Research Laboratories, NEC Corporation, 34 Miyukigaoka, Tsukuba, 305-8501 (Japan); Tomanek, David [Physics and Astronomy Department, Michigan State University, East Lansing, Michigan 48824-2320 (United States)

2007-07-06T23:59:59.000Z

331

decommissioning of carbon dioxide (CO  

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

decommissioning of carbon dioxide (CO decommissioning of carbon dioxide (CO 2 ) storage wells. The manual builds on lessons learned through NETL research; the experiences of the Regional Carbon Sequestration Partnerships' (RCSPs) carbon capture, utilization, and storage (CCUS) field tests; and the acquired knowledge of industries that have been actively drilling wells for more than 100 years. In addition, the BPM provides an overview of the well-

332

Introduction Basic dynamics  

E-Print Network [OSTI]

Introduction Basic dynamics The Gulf Stream The thermohaline circulation Ocean currents: some Ocean currents: some misconceptions and some dynamics #12;Introduction Basic dynamics The Gulf Stream. Geosciences Ocean currents: some misconceptions and some dynamics #12;Introduction Basic dynamics The Gulf

LaCasce, Joseph H.

333

Less Carbon Ltd | Open Energy Information  

Open Energy Info (EERE)

Less Carbon Ltd Jump to: navigation, search Name: Less Carbon Ltd Place: London, Greater London, United Kingdom Zip: EC3M 4BT Sector: Carbon Product: Less Carbon advises energy...

334

First Carbon Fund Ltd | Open Energy Information  

Open Energy Info (EERE)

First Carbon Fund Ltd Jump to: navigation, search Name: First Carbon Fund Ltd Place: London, Greater London, United Kingdom Zip: EC1V 9EE Sector: Carbon Product: First Carbon Fund...

335

NETL: Gasifipedia - Carbon Sequestration  

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

Coal: SNG from Coal: Process & Commercialization: Carbon Sequestration Coal: SNG from Coal: Process & Commercialization: Carbon Sequestration Carbon sequestration, also termed carbon storage, is the permanent storage of CO2, usually in deep geologic formations. Industrially-generated CO2 -- resulting from fossil fuel combustion, gasification, and other industrial processes -- is injected as a supercritical fluid into geologic reservoirs, where it is held in place by natural traps and seals. Carbon storage is one approach to minimizing atmospheric emissions of man-made CO2. As discussed above, the main purpose of CO2 EOR such as the Weyburn Project is tertiary recovery of crude oil, but in effect substantial CO2 remains sequestered/stored as a result. Current Status of CO2 Storage CO2 storage is currently underway in the United States and around the world. Large, commercial-scale projects, like the Sleipner CO2 Storage Site in Norway and the Weyburn-Midale CO2 Project in Canada, have been injecting CO2 into geologic storage formations more than a decade. Each of these projects stores more than 1 million tons of CO2 per year. Large-scale efforts are currently underway in Africa, China, Australia, and Europe, as well. These commercial-scale projects are demonstrating that large volumes of CO2 can be safely and permanently stored. In addition, a number of smaller pilot projects are underway in different parts of the world to determine suitable locations and technologies for future long-term CO2 storage. To date, more than 200 small-scale CO2 storage projects have been carried out worldwide. A demonstration project that captures CO2 from a pulverized coal power plant and pipes it to a geologic formation for storage recently came online in Alabama.

336

Carbon Nanotubes for Data Processing  

E-Print Network [OSTI]

Carbon Nanotubes for Data Processing Joerg Appenzeller, T. J. Watson Research Center, IBM Research.2 Electronic Structure of Graphene 4 2.3 Electronic Structure of Carbon Nanotubes 4 2.4 Transport Properties 6 2.5 Contacts 9 3 Synthesis of Carbon Nanotubes 10 3.1 Synthetic Methods 10 3.2 Growth Mechanisms 12

Joselevich, Ernesto

337

4, 99123, 2007 Amazon carbon  

E-Print Network [OSTI]

, suggested much larger estimates for tropical forest carbon sequestration in the Ama- zon BasinBGD 4, 99­123, 2007 Amazon carbon balanc J. Lloyd et al. Title Page Abstract Introduction Discussions is the access reviewed discussion forum of Biogeosciences An airborne regional carbon balance

Boyer, Edmond

338

Dispersion toughened silicon carbon ceramics  

DOE Patents [OSTI]

Fracture resistant silicon carbide ceramics are provided by incorporating therein a particulate dispersoid selected from the group consisting of (a) a mixture of boron, carbon and tungsten, (b) a mixture of boron, carbon and molybdenum, (c) a mixture of boron, carbon and titanium carbide, (d) a mixture of aluminum oxide and zirconium oxide, and (e) boron nitride. 4 figures.

Wei, G.C.

1984-01-01T23:59:59.000Z

339

CARBON NANOTUBE TRANSISTORS: AN EVALUATION  

E-Print Network [OSTI]

CARBON NANOTUBE TRANSISTORS: AN EVALUATION L.C. Castro, D.L. John, and D.L. Pulfrey Department A simple, non-equilibrium model is used to evaluate the likely DC performance of carbon nanotube field and transcon- ductance close to the low-quantum-capacitance limit. Keywords: Carbon nanotubes, field

Pulfrey, David L.

340

1, 167193, 2004 Terrestrial carbon  

E-Print Network [OSTI]

BGD 1, 167­193, 2004 Terrestrial carbon budget at country-scale I. A. Janssens et al. Title Page Biogeosciences Discussions is the access reviewed discussion forum of Biogeosciences The carbon budget.janssens@ua.ac.be) 167 #12;BGD 1, 167­193, 2004 Terrestrial carbon budget at country-scale I. A. Janssens et al. Title

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

NETL: Carbon Storage - Southeast Regional Carbon Sequestration Partnership  

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

Southeast Regional Carbon Sequestration Partnership Southeast Regional Carbon Sequestration Partnership MORE INFO Additional information related to ongoing SECARB efforts can be found on their website. The Southeast Regional Carbon Sequestration Partnership (SECARB), managed by the Southern States Energy Board (SSEB), represents a 13-State region, including Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Texas, and Virginia, and portions of Kentucky and West Virginia. SECARB is comprised of over 100 participants representing Federal and State governments, industry, academia, and non-profit organizations. Southeast Regional Carbon Sequestration Partnership Region Southeast Regional Carbon Sequestration Partnership Region The primary goal of SECARB is to develop the necessary framework and

342

Hydrogen storage in multilayer carbon nanotubes  

Science Journals Connector (OSTI)

Multilayer carbon nanotubes obtained by pyrolysis and mechanical activation of plant-derived amorphous carbon are excellent sorbents for hydrogen.

D. V. Onishchenko; V. P. Reva; V. G. Kuryavyi

2013-05-01T23:59:59.000Z

343

Net carbon flux from agriculture: Carbon emissions, carbon sequestration, crop yield, and land-use change  

Science Journals Connector (OSTI)

There is a potential to sequester carbon in soil by changing agricultural management practices. ... fossil-fuel use, agricultural inputs, and the carbon emissions associated with fossil fuels and other ... with f...

Tristram O. West; Gregg Marland

2003-04-01T23:59:59.000Z

344

Carbon Sequestered, Carbon Displaced and the Kyoto Context  

SciTech Connect (OSTI)

The integrated system that embraces forest management, forest products, and land-use change impacts the global carbon cycle - and hence the net emission of the greenhouse gas carbon dioxide - in four fundamental ways. Carbon is stored in living and dead biomass, carbon is stored in wood products and landfills, forest products substitute in the market place for products made from other materials, and forest harvests can be used wholly or partially to displace fossil fuels in the energy sector. Implementation of the Kyoto Protocol to the United Nations Framework Convention on Climate Change would result in the creation of international markets for carbon dioxide emissions credits, but the current Kyoto text does not treat all carbon identically. We have developed a carbon accounting model, GORCAM, to examine a variety of scenarios for land management and the production of forest products. In this paper we explore, for two simple scenarios of forest management, the carbon flows that occur and how these might be accounted for under the Kyoto text. The Kyoto protocol raises questions about what activities can result in emissions credits, which carbon reservoirs will be counted, who will receive the credits, and how much credit will be available? The Kyoto Protocol would sometimes give credits for carbon sequestered, but it would always give credits when fossil-fuel carbon dioxide emissions are displaced.

Marland, G.; Schlamadinger, B.

1999-04-18T23:59:59.000Z

345

The mechanisms for filling carbon nanotubes with molten salts: carbon nanotubes as  

Science Journals Connector (OSTI)

The mechanisms for filling carbon nanotubes with molten salts are investigated using molecular dynamics computer simulation. Inorganic nanotubular structures, whose morphologies can be rationalized in terms of the folding, or the removal of sections from, planes of square nets are found to form. The formation mechanisms are found to follow a 'chain-by-chain' motif in which the structures build systematically from charge neutral M–X–M–X chains. The formation mechanisms are rationalized in terms of the ion–ion interactions (intra-chain and inter-chain terms). In addition, the mechanisms of filling are discussed in terms of a 'hopping' between basins on the underlying energy landscape. The role of the carbon nanotube as an energy landscape filter is discussed.

Clare L Bishop; Mark Wilson

2009-01-01T23:59:59.000Z

346

Nonlinear buckling analyses of a small-radius carbon nanotube  

SciTech Connect (OSTI)

Carbon nanotube (CNT) was first discovered by Sumio Iijima. It has aroused extensive attentions of scholars from all over the world. Over the past two decades, we have acquired a lot of methods to synthesize carbon nanotubes and learn their many incredible mechanical properties such as experimental methods, theoretical analyses, and computer simulations. However, the studies of experiments need lots of financial, material, and labor resources. The calculations will become difficult and time-consuming, and the calculations may be even beyond the realm of possibility when the scale of simulations is large, as for computer simulations. Therefore, it is necessary for us to explore a reasonable continuum model, which can be applied into nano-scale. This paper attempts to develop a mathematical model of a small-radius carbon nanotube based on continuum theory. An Isotropic circular cross-section, Timoshenko beam model is used as a simplified mechanical model for the small-radius carbon nanotube. Theoretical part is mainly based on modified couple stress theory to obtain the numerical solutions of buckling deformation. Meanwhile, the buckling behavior of the small radius carbon nanotube is simulated by Molecular Dynamics method. By comparing with the numerical results based on modified couple stress theory, the dependence of the small-radius carbon nanotube mechanical behaviors on its elasticity constants, small-size effect, geometric nonlinearity, and shear effect is further studied, and an estimation of the small-scale parameter of a CNT (5, 5) is obtained.

Liu, Ning, E-mail: liuxiao@ase.buaa.edu.cn; Li, Min; Jia, Jiao [School of Aeronautic Science and Engineering, Beihang University, Beijing 100091 (China); Wang, Yong-Gang [Department of Applied Mechanics, China Agricultural University, Beijing 100083 (China)

2014-04-21T23:59:59.000Z

347

*** How PAN based Carbon Fibers are  

E-Print Network [OSTI]

*** How PAN based Carbon Fibers are Manufactured *** How Carbon Fiber Material Properties are Achieved *** Carbon Fiber Markets/Applications CarbonFiber AerospaceEngineeringGuestLecture: Friday as a Business Development Manager for Amoco's carbon fiber business unit (manufacturers of T-300 carbon fiber

Hu, Hui

348

6, 34193463, 2006 Black carbon or  

E-Print Network [OSTI]

ACPD 6, 3419­3463, 2006 Black carbon or brown carbon M. O. Andreae and A. Gelencs´er Title Page Chemistry and Physics Discussions Black carbon or brown carbon? The nature of light-absorbing carbonaceous;ACPD 6, 3419­3463, 2006 Black carbon or brown carbon M. O. Andreae and A. Gelencs´er Title Page

Paris-Sud XI, Université de

349

Carbon Cycle 2.0  

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

Carbon Cycle 2.0 Carbon Cycle 2.0 Pioneering science for sustainable energy solutions Artificial Photosynthesis Energy Storage Combustion Carbon Capture & Storage Developing World Efficiency Photovoltaics Biofuels Energy Analysis Climate Modeling Carbon Cycle 2.0 is... 1. A vision for * a global energy system integrated with the Earth's natural carbon cycles * an interactive Berkeley Lab environment with a shared sense of purpose 2. A program development plan that will allow us to deepen our capabilities and provide more opportunities to have impact 3. An attempt to integrate our basic research with applications using models of technology deployment constraints 4. Set of internal activities aimed at priming the effort

350

Modeling Thermodynamics and Dynamics of MixtureModeling Thermodynamics and Dynamics of Mixture Adsorption in Porous MaterialsAdsorption in Porous Materials  

E-Print Network [OSTI]

models to describe adsorption dynamics · Apply to case of Enhanced Coalbed Methane Extraction ­ Trillions of cubic meters of methane and carbon dioxide can be extracted and stored in unusable coal seams Models temperature, adsorption increases with pressure. Carbon Dioxide interacts more strongly with coal than methane

Mountziaris, T. J.

351

Southwest Regional Partnership on Carbon Sequestration  

SciTech Connect (OSTI)

The Southwest Partnership on Carbon Sequestration completed several more tasks during the period of April 1, 2005-September 30, 2005. The main objective of the Southwest Partnership project is to evaluate and demonstrate the means for achieving an 18% reduction in carbon intensity by 2012. While Phase 2 planning is well under way, the content of this report focuses exclusively on Phase 1 objectives completed during this reporting period. Progress during this period was focused in the three areas: geological carbon storage capacity in New Mexico, terrestrial sequestration capacity for the project area, and the Integrated Assessment Model efforts. The geologic storage capacity of New Mexico was analyzed and Blanco Mesaverde (which extends into Colorado) and Basin Dakota Pools were chosen as top two choices for the further analysis for CO{sub 2} sequestration in the system dynamics model preliminary analysis. Terrestrial sequestration capacity analysis showed that the four states analyzed thus far (Arizona, Colorado, New Mexico and Utah) have relatively limited potential to sequester carbon in terrestrial systems, mainly due to the aridity of these areas, but the large land area offered could make up for the limited capacity per hectare. Best opportunities were thought to be in eastern Colorado/New Mexico. The Integrated Assessment team expanded the initial test case model to include all New Mexico sinks and sources in a new, revised prototype model in 2005. The allocation mechanism, or ''String of Pearls'' concept, utilizes potential pipeline routes as the links between all combinations of the source to various sinks. This technique lays the groundwork for future, additional ''String of Pearls'' analyses throughout the SW Partnership and other regions as well.

Brian McPherson

2006-04-01T23:59:59.000Z

352

CHARTER FOR THE CARBON SEQUESTRATION  

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

CHARTER FOR THE CARBON SEQUESTRATION CHARTER FOR THE CARBON SEQUESTRATION LEADERSHIP FORUM (CSLF): A CARBON CAPTURE AND STORAGE TECHNOLOGY INITIATIVE The undersigned national governmental entities (collectively the "Members") set forth the following Terms of Reference for the Carbon Sequestration Leadership Forum (CSLF), a framework for international cooperation in research and development for the separation, capture, transportation and storage of carbon dioxide. The CSLF will seek to realize the promise of carbon capture and storage over the coming decades, making it commercially competitive and environmentally safe. 1. Purpose of the CSLF To facilitate the development of improved cost-effective technologies for the separation and capture of carbon dioxide for its transport and long-term safe storage; to make these

353

CARBON7510.pdf  

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

Author's personal copy Author's personal copy NMR a critical tool to study the production of carbon fiber from lignin Marcus Foston a , Grady A. Nunnery b , Xianzhi Meng a , Qining Sun a , Frederick S. Baker b , Arthur Ragauskas a, * a BioEnergy Science Center, School of Chemistry and Biochemistry, Institute of Paper Science and Technology, Georgia Institute of Technology, 500 10th St., Atlanta, GA 30332, United States b Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6087, United States A R T I C L E I N F O Article history: Received 7 April 2012 Accepted 6 September 2012 Available online 14 September 2012 A B S T R A C T The structural changes occurring to hardwood Alcell TM lignin as a result of fiber devolatiliza- tion/extrusion, oxidative thermo-stabilization and carbonization are investigated in this study by solid-state and solution nuclear magnetic resonance

354

Magnetoconductance of carbon nanotubes  

Science Journals Connector (OSTI)

As a result of the interaction between the spin and the magnetic field (B), special step structures are predicted to exist in the ballistic magnetoconductance of carbon nanotubes. The electronic structure of a carbon nanotube drastically changes from a metal (semiconductor) to a semiconductor (metal) during the variation of the magnetic flux. When the spin-B interaction is neglected, the Fermi level only touches the conductance and valence bands of a metallic nanotube. This paramagnetic interaction could make the subbands cross and intersect with the Fermi level within a certain magnetic-flux range; the ballistic magnetoconductance thus exhibits step structures. Such special structures are expected to be observable at low temperature (<1 K) and bias voltage (<0.1 mV). Moreover there exists another effect, the doping effect, which could lead to step structures even without the spin-B interaction.

M. F. Lin and Kenneth W. -K. Shung

1995-03-15T23:59:59.000Z

355

Magnetism of carbon clusters  

Science Journals Connector (OSTI)

The ?-electron ring current magnetic susceptibilities and endohedral chemical shifts of the fullerenes are calculated with the London theory. The diamagnetism calculated for the fullerenes that have been characterized to date does not show a monotonic increase toward the graphite value. By carrying out calculations on high-symmetry giant fullerenes (Cn) in the size regime 100magnetic susceptibility of graphite on a per carbon basis. Endohedral chemical shifts are predicted to be invariant to cluster size, but subject to the quantum size effects seen in smaller fullerenes and metallic clusters. The fullerenes are different from the metallic clusters because the finite band gap in conjugated carbon compounds allows the diamagnetic term to dominate at large cluster size. The experimentally observed decrease in nanotube material diamagnetism with temperature is attributed to the increased importance of the Van Vleck term due to finite-temperature effects.

R. C. Haddon and Alfredo Pasquarello

1994-12-01T23:59:59.000Z

356

Solitons in carbon nanotubes  

Science Journals Connector (OSTI)

The symmetries of spontaneous lattice distortions in carbon nanotubes are investigated. When the degeneracy of the ground states remains discrete, there are solitons or domain walls connecting the different symmetry-broken vaccua. These solitons, similarly to the case of polyacetelene, are fractionally charged states. In addition to the topological domain walls, there are polaron states with discrete energies within the energy gap. The energies and shapes of these localized midgap states should be accessible via scanning tunneling microscopy spectroscopy.

Claudio Chamon

2000-07-15T23:59:59.000Z

357

CARBON DIOXIDE FIXATION.  

SciTech Connect (OSTI)

Solar carbon dioxide fixation offers the possibility of a renewable source of chemicals and fuels in the future. Its realization rests on future advances in the efficiency of solar energy collection and development of suitable catalysts for CO{sub 2} conversion. Recent achievements in the efficiency of solar energy conversion and in catalysis suggest that this approach holds a great deal of promise for contributing to future needs for fuels and chemicals.

FUJITA,E.

2000-01-12T23:59:59.000Z

358

Electrochimica Acta 52 (2007) 39653975 Elucidating differences between carbon paper and carbon  

E-Print Network [OSTI]

of them are carbon-fiber-based porous materials: carbon paper is non-woven, while carbon cloth is wovenElectrochimica Acta 52 (2007) 3965­3975 Elucidating differences between carbon paper and carbon the performance differences between carbon paper (CP) and carbon cloth (CC). Three-dimensional simulations, based

359

EB2012-MS-43 ADVANCES IN THE MODELLING OF CARBON/CARBON  

E-Print Network [OSTI]

EB2012-MS-43 ADVANCES IN THE MODELLING OF CARBON/CARBON COMPOSITE UNDER TRIBOLOGICAL CONSTRAINTS 1, homogenization, carbon ABSTRACT Thermo mechanical properties of Carbon-Carbon composite (C/C) allow them, the Carbon-Carbon composites (C/C) are materials frequently used in industrial applications such as plane

Paris-Sud XI, Université de

360

Carbon taxes and India  

SciTech Connect (OSTI)

Using the Indian module of the Second Generation Model 9SGM, we explore a reference case and three scenarios in which greenhouse gas emissions were controlled. Two alternative policy instruments (carbon taxes and tradable permits) were analyzed to determine comparative costs of stabilizing emissions at (1) 1990 levels (the 1 X case), (2) two times the 1990 levels (the 2X case), and (3) three times the 1990 levels (the 3X case). The analysis takes into account India`s rapidly growing population and the abundance of coal and biomass relative to other fuels. We also explore the impacts of a global tradable permits market to stabilize global carbon emissions on the Indian economy under the following two emissions allowance allocation methods: (1) {open_quotes}Grandfathered emissions{close_quotes}: emissions allowances are allocated based on 1990 emissions. (2) {open_quotes}Equal per capita emissions{close_quotes}: emissions allowances are allocated based on share of global population. Tradable permits represent a lower cost method to stabilize Indian emissions than carbon taxes, i.e., global action would benefit India more than independent actions.

Fisher-Vanden, K.A.; Pitcher, H.M.; Edmonds, J.A.; Kim, S.H. [Pacific Northwest Lab., Richland, WA (United States); Shukla, P.R. [Indian Institute of Management, Ahmedabad (India)

1994-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

The 2009 IEEE International Conference on Automation and Logistics will be held from August 5 to 7, 2009 in the historical city of Shenyang, China. The theme of  

E-Print Network [OSTI]

The 2009 IEEE International Conference on Automation and Logistics will be held from August 5 to 7 and Logistics in the Information Age", reflecting the fast growing interests in research, development and applications in the dynamic and exciting areas of advanced intelligent automation and logistics. Shenyang

362

Vertically Aligned Carbon Nanofiber Based Biosensor Platform for Glucose Sensor  

SciTech Connect (OSTI)

Vertically aligned carbon nanofibers (VACNFs) have recently become an important tool for biosensor design. Carbon nanofibers (CNF) have excellent conductive and structural properties with many irregularities and defect sites in addition to exposed carboxyl groups throughout their surfaces. These properties allow a better immobilization matrix compared to carbon nanotubes and offer better resolution when compared with the FET-based biosensors. VACNFs can be deterministically grown on silicon substrates allowing optimization of the structures for various biosensor applications. Two VACNF electrode architectures have been employed in this study and a comparison of their performances has been made in terms of sensitivity, sensing limitations, dynamic range, and response time. The usage of VACNF platform as a glucose sensor has been verified in this study by selecting an optimum architecture based on the VACNF forest density. Read More: http://www.worldscientific.com/doi/abs/10.1142/S0129156414500062

Mamun, Khandaker Abdullah Al [ORNL] [ORNL; Tulip, Fahmida S [ORNL] [ORNL; Macarthur, Kimberly C [ORNL] [ORNL; McFarlane, Nicole M [ORNL] [ORNL; Islam, Syed K [ORNL] [ORNL

2014-01-01T23:59:59.000Z

363

Symbolic dynamics  

E-Print Network [OSTI]

This chapter presents some of the links between automata theory and symbolic dynamics. The emphasis is on two particular points. The first one is the interplay between some particular classes of automata, such as local automata and results on embeddings of shifts of finite type. The second one is the connection between syntactic semigroups and the classification of sofic shifts up to conjugacy.

Béal, M -P; Eilers, S; Perrin, D

2010-01-01T23:59:59.000Z

364

Native Plants for Optimizing Carbon Sequestration in Reclaimed Lands  

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

Native Plants for Optimizing Carbon Sequestration in Native Plants for Optimizing Carbon Sequestration in Reclaimed Lands Pat J. Unkefer (punkefer@lanl.gov; 505-665-2554) Biosciences Division (B-S1), Mail Stop E529 Los Alamos National Laboratory Los Alamos, NM 87545 Michael H. Ebinger (mhe@lanl.gov; 505-667-3147) Environmental Dynamics and Spatial Analysis Group (EES-10), Mail Stop J495 Los Alamos National Laboratory Los Alamos, NM 87545 David D. Breshears (daveb@lanl.gov; 505-665-2803) Environmental Dynamics and Spatial Analysis Group (EES-10), Mail Stop J495 Los Alamos National Laboratory Los Alamos, NM 87545 Thomas J. Knight (tknight@usm.maine.edu; 207-780-4577) Biological Sciences Department, 96 Falmouth Ave. University of Southern Maine Portland, ME 04103 Christopher L. Kitts (ckitts@calpoly.edu; 805-756-2949)

365

Estimation of Carbon Credits in Carbon Dioxide Sequestration Activities  

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

Carbon Credits in Carbon Credits in Carbon Dioxide Sequestration Activities K. Thomas Klasson and Brian H. Davison Oak Ridge National Laboratory * Oak Ridge, Tennessee 37831-6226 Presentation First National Conference on Carbon Sequestration May 14-17, 2001 Washington, DC "The submitted manuscript has been authored by a contractor of the U.S. Government under contract No. DE-AC05-00OR22725. Accordingly, the U.S. Government retains a nonexclusive, royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for U.S. Government purposes." * Managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725 1 Estimation of Carbon Credits in Carbon Dioxide Sequestration Activities

366

Black Carbon’s Properties and Role in the Environment: A Comprehensive Review  

E-Print Network [OSTI]

NOAA/ESRL. Mauna Loa Carbon Dioxide Annual Mean Data.H. Can reducing black carbon emissions counteract globalanalysis of black carbon in soils. Global Biogeochem. Cycle.

Shrestha, Gyami

2010-01-01T23:59:59.000Z

367

Carbon Capital: The Political Ecology of Carbon Forestry and Development in Chiapas, Mexico  

E-Print Network [OSTI]

B v + B d ) C T = Total carbon B v = biomass contained indevelopment through carbon sequestration: experiences in2000) Rural livelihoods and carbon management, IIED Natural

Osborne, Tracey Muttoo

2010-01-01T23:59:59.000Z

368

Interdependency of Subsurface Carbon Distribution and Graphene-Catalyst Interaction  

E-Print Network [OSTI]

Interdependency of Subsurface Carbon Distribution and Graphene? Catalyst Interaction Robert S. Weatherup,*,† Hakim Amara,‡ Raoul Blume,§ Bruno Dlubak,?,? Bernhard C. Bayer,† Mamadou Diarra,?,# Mounib Bahri,‡ Andrea Cabrero-Vilatela,† Sabina Caneva... , France * S Supporting Information ABSTRACT: The dynamics of the graphene?catalyst interaction during chemical vapor deposition are investigated using in situ, time- and depth- resolved X-ray photoelectron spectroscopy, and complementary grand canonical...

Weatherup, Robert S.; Amara, Hakim; Blume, Raoul; Dlubak, Bruno; Bayer, Bernhard C.; Diarra, Mamadou; Bahri, Mounib; Cabrero-Vilatela, Andrea; Caneva, Sabina; Kidambi, Piran R.; Martin, Marie-Blandine; Deranlot, Cyrile; Seneor, Pierre; Schloegl, Robert; Ducastelle, François; Bichara, Christophe; Hofmann, Stephan

2014-09-04T23:59:59.000Z

369

Analysis of condensate banking dynamics in a gas condensate reservoir under different injection schemes  

E-Print Network [OSTI]

condensate reservoir under natural depletion, and injection of methane, injection of carbon dioxide, produced gas recycling and water injection. To monitor the condensate banking dynamics near the wellbore area, such as oil saturation and compositional...

Sandoval Rodriguez, Angelica Patricia

2002-01-01T23:59:59.000Z

370

Dynamic pricing and carbon intensity in demand response functions.  

E-Print Network [OSTI]

?? The European power sector is facing significant challenges related to investments in grid infrastructure and generation capacity. The continued deployment of intermittent renewables also… (more)

Ekman, Oskar

2014-01-01T23:59:59.000Z

371

Experimental and Molecular Dynamics Studies Related with Carbon Nanotubes  

E-Print Network [OSTI]

Camera Reflector Stepping motor Vacuum pump Arc-Discharge Generator SEM Image of PurificationSEM Image-Fe): Iijima(1993) MWNT by CVD Macroscopic Prod. SWNTs (Ni-Co): Smalley (1996) Arc Production (Ni-Y): Journet Generation of SWNTsGeneration of SWNTs Laser-Oven SWNT GeneratorLaser-Oven SWNT Generator Electric Furnace Nd

Maruyama, Shigeo

372

NETL: Carbon Storage - Midwest Regional Carbon Sequestration Partnership  

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

MRCSP MRCSP Carbon Storage Midwest Regional Carbon Sequestration Partnership MORE INFO Additional information related to ongoing MRCSP efforts can be found on their website. The Midwest Regional Carbon Sequestration Partnership (MRCSP) was established to assess the technical potential, economic viability, and public acceptability of carbon storage within a region consisting of nine contiguous states: Indiana, Kentucky, Maryland, Michigan, New Jersey, New York, Ohio, Pennsylvania, and West Virginia. A group of leading universities, state geological surveys, non-governmental organizations and private companies, led by Battelle Memorial Institute, has been assembled to carry out this research. The MRCSP currently consists of nearly 40 members; each contributing technical knowledge, expertise and cost sharing.

373

Method for joining carbon-carbon composites to metals  

DOE Patents [OSTI]

A method for joining carbon-carbon composites to metals by brazing. Conventional brazing of recently developed carbon-bonded carbon fiber (CBCF) material to a metal substrate is limited by the tendency of the braze alloy to ``wick`` into the CBCF composite rather than to form a strong bond. The surface of the CBCF composite that is to be bonded is first sealed with a fairly dense carbonaceous layer achieved by any of several methods. The sealed surface is then brazed to the metal substrate by vacuum brazing with a Ti-Cu-Be alloy. 1 fig.

Lauf, R.J.; McMillan, A.D.; Moorhead, A.J.

1997-07-15T23:59:59.000Z

374

Carbon-Optimal and Carbon-Neutral Supply Chains  

E-Print Network [OSTI]

in the life-cycle assessment (LCA) and carbon footprintingto integrate the economics- and LCA-based perspectives onto life-cycle assessment (LCA). The existing literature on

Caro, F.; Corbett, C. J.; Tan, T.; Zuidwijk, R.

2011-01-01T23:59:59.000Z

375

Method for joining carbon-carbon composites to metals  

DOE Patents [OSTI]

A method for joining carbon-carbon composites to metals by brazing. Conventional brazing of recently developed carbon-bonded carbon fiber (CBCF) material to a metal substrate is limited by the tendency of the braze alloy to "wick" into the CBCF composite rather than to form a strong bond. The surface of the CBCF composite that is to be bonded is first sealed with a fairly dense carbonaceous layer achieved by any of several methods. The sealed surface is then brazed to the metal substrate by vacuum brazing with a Ti-Cu-Be alloy.

Lauf, Robert J. (Oak Ridge, TN); McMillan, April D. (Knoxville, TN); Moorhead, Arthur J. (Knoxville, TN)

1997-01-01T23:59:59.000Z

376

Collective resonances in carbon nanotubes  

Science Journals Connector (OSTI)

A theory is presented to study the plasma oscillations of the full ?+? electron system of carbon nanotubes. Cylindrical charge density was supposed to represent the electron distribution within the shells of the tubule and an integral equation is derived for the perturbation caused by an external electric field. From the solution of this equation the dynamical dipole polarizability is calculated in the energy range above 10 eV. For single-shell nanotubes a double-peaked spectrum resulted resembling the slow tangential and the fast radial dipole active mode of a classical spherical shell of finite width. The peak positions are around 17 and 22 eV for the smallest tubule radius and with increasing radius the low-energy peak shifts to a lower energy, the high-energy peak to a higher energy. For multishell nanotubes a strong shell-shell interaction is found, as a result of which the double-peaked structure of the innermost shell will be the dominant part in the imaginary part of the polarizability. With increasing shell number the low-energy peak shifts to a higher energy, the high-energy peak to lower energy; this is just the opposite tendency found in the radius dependence. For a large enough shell number the two peaks coincide at about 19 eV, and this value is independent of the radius of the innermost shell. Although the numbers mentioned may vary within 3–4 eV depending on the parameters of our models, the tendencies are in overall agreement with the existing electron energy loss spectroscopy measurements and with other theoretical predictions.

B. Vasvári

1997-03-15T23:59:59.000Z

377

Agricultural Carbon Mitigation in Europe  

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

Agricultural Carbon Mitigation in Europe Agricultural Carbon Mitigation in Europe Agricultural Carbon Mitigation in Europe Smith P, Powlson DS, Smith JU, Falloon P, and Coleman K. 2000. Meeting Europe's climate change commitments: Quantitative estimates of the potential for carbon mitigation by agriculture. Global Climate Change 6:525-539. Abstract Under the Kyoto Protocol, the European Union is committed to a reduction in CO2 emissions to 92% of baseline (1990) levels during the first commitment period (2008-2012). The Kyoto Protocol allows carbon emissions to be offset by demonstrable removal of carbon from the atmosphere. Thus, land-use / land-management change and forestry activities that are shown to reduce atmospheric CO2 levels can be included in the Kyoto targets. These activities include afforestation, reforestation and deforestation (article

378

ARM - Field Campaign - Aircraft Carbon  

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

govCampaignsAircraft Carbon govCampaignsAircraft Carbon Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Aircraft Carbon 2006.07.01 - 2008.09.30 Lead Scientist : Margaret Torn For data sets, see below. Description Airborne trace-gas measurements at ARM-SGP provided valuable data for addressing carbon-cycle questions highlighted by the US Climate Change Research Program and the North American Carbon Program. A set of carbon-cycle instruments and sample collection systems were added to an ARM-managed aircraft at ARM-SGP user facility. A separate (in-place) grant covered the cost of developing the instrument systems, analyzing the data, and ingesting all data to the ARM data archives. In the short-term (~1 y) we had two priorities. The first was to acquire

379

Compilation of carbon-14 data  

SciTech Connect (OSTI)

A review and critical analysis was made of the original sources of carbon-14 in the graphite moderator and reflector zones of the eight Hanford production reactors, the present physical and chemical state of the carbon-14, pathways (other than direct combustion) by which the carbon-14 could be released to the biosphere, and the maximum rate at which it might be released under circumstances which idealistically favor the release. Areas of uncertainty are noted and recommendations are made for obtaining additional data in three areas: (1) release rate of carbon-14 from irradiated graphite saturated with aerated water; (2) characterization of carbon-14 deposited outside the moderator and reflector zones; and (3) corrosion/release rate of carbon-14 from irradiated steel and aluminum alloys.

Paasch, R.A.

1985-07-08T23:59:59.000Z

380

Polarons in Carbon Nanotubes  

Science Journals Connector (OSTI)

We use ab initio total-energy calculations to predict the existence of polarons in semiconducting carbon nanotubes (CNTs). We find that the CNTs' band edge energies vary linearly and the elastic energy increases quadratically with both radial and with axial distortions, leading to the spontaneous formation of polarons. Using a continuum model parametrized by the ab initio calculations, we estimate electron and hole polaron lengths, energies, and effective masses and analyze their complex dependence on CNT geometry. Implications of polaron effects on recently observed electro- and optomechanical behavior of CNTs are discussed.

M. Verissimo-Alves; R. B. Capaz; Belita Koiller; Emilio Artacho; H. Chacham

2001-04-09T23:59:59.000Z

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Carbonate fuel cell anodes  

DOE Patents [OSTI]

A molten alkali metal carbonates fuel cell porous anode of lithium ferrite and a metal or metal alloy of nickel, cobalt, nickel/iron, cobalt/iron, nickel/iron/aluminum, cobalt/iron/aluminum and mixtures thereof wherein the total iron content including ferrite and iron of the composite is about 25 to about 80 percent, based upon the total anode, provided aluminum when present is less than about 5 weight percent of the anode. A process is described for production of the lithium ferrite containing anode by slipcasting.

Donado, R.A.; Hrdina, K.E.; Remick, R.J.

1993-04-27T23:59:59.000Z

382

Southeast Regional Carbon Sequestration Partnership  

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

Carbon Sequestration Partnership Presented to: Regional Carbon Sequestration Partnerships Annual Review Meeting Development Phase Field Tests Pittsburgh, PA October 5, 2010 Presented by: Gerald R. Hill, Ph.D. Senior Technical Advisor Southern States Energy Board Acknowledgements  This material is based upon work supported by the U.S. Department of Energy National Energy Technology Laboratory.  Cost share and research support provided by SECARB/SSEB Carbon Management Partners Through innovations in energy and environmental policies, programs and technologies, the Southern States Energy Board enhances economic development and the quality of life in the South. - SSEB Mission Statement SSEB Carbon Management Program  Established 2003  Characterizing Southeast Region

383

Industrial Carbon Management Initiative (ICMI)  

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

Industrial Carbon Management Initiative Industrial Carbon Management Initiative (ICMI) Background The ICMI project is part of a larger program called Carbon Capture Simulation and Storage Initiative (C2S2I). The C2S2I has a goal of expanding the DOE's focus on Carbon Capture Utilization and Storage (CCUS) for advanced coal power systems and other applications, including the use of petroleum coke as a feedstock for the industrial sector. The American Recovery and Re-Investment Act (ARRA)-funded

384

The Viscosity of Carbon Dioxide  

Science Journals Connector (OSTI)

26 July 1912 research-article The Viscosity of Carbon Dioxide P. Phillips The Royal Society is collaborating with JSTOR to digitize, preserve, and extend access to Proceedings...

1912-01-01T23:59:59.000Z

385

Carbon nanotube IR detectors (SV)  

SciTech Connect (OSTI)

Sandia National Laboratories (Sandia) and Lockheed Martin Corporation (LMC) collaborated to (1) evaluate the potential of carbon nanotubes as channels in infrared (IR) photodetectors; (2) assemble and characterize carbon nanotube electronic devices and measure the photocurrent generated when exposed to infrared light;(3) compare the performance of the carbon nanotube devices with that of traditional devices; and (4) develop and numerically implement models of electronic transport and opto-electronic behavior of carbon nanotube infrared detectors. This work established a new paradigm for photodetectors.

Leonard, F. L.

2012-03-01T23:59:59.000Z

386

Carbon Sequestration Atlas IV Video  

SciTech Connect (OSTI)

The Carbon Sequestration Atlas is a collection of all the storage sites of CO2 such as, petroleum, natural gas, coal, and oil shale.

Rodosta, Traci

2013-04-19T23:59:59.000Z

387

Industrial Carbon Capture Project Selections  

Broader source: Energy.gov [DOE]

Industrial Carbon Capture Project SelectionsSeptember 2, 2010These projects have been selected for negotiation of awards; final award amounts may vary.

388

Carbon-assisted flyer plates  

DOE Patents [OSTI]

A laser driven flyer plate utilizing an optical fiber connected to a laser. The end of the optical fiber has a layer of carbon and a metal layer deposited onto it. The carbon layer provides the laser induced plasma which is superior to the plasma produced from most metals. The carbon layer plasma is capable of providing a flatter flyer plate, converting more of the laser energy to driving plasma, promoting a higher flyer plate acceleration, and providing a more uniform pulse behind the plate. In another embodiment, the laser is in optical communication with a substrate onto which a layer of carbon and a layer of metal have been deposited.

Stahl, David B. (Los Alamos, NM); Paisley, Dennis L. (Santa Fe, NM)

1994-01-01T23:59:59.000Z

389

Magnetism of the carbon allotropes  

Science Journals Connector (OSTI)

... a benzene ring. This analysis clearly shows the rationale behind the continuing interest in the magnetism of conjugated carbon compounds: properly interpreted,

R. C. Haddon

1995-11-16T23:59:59.000Z

390

Carbon Stars | Open Energy Information  

Open Energy Info (EERE)

Stars Jump to: navigation, search Name: Carbon Stars Place: Netherlands Sector: Services Product: General Financial & Legal Services ( Private family-controlled ) References:...

391

Photosynthesis and carbon dioxide fixation  

Science Journals Connector (OSTI)

Photosynthesis and carbon dioxide fixation ... Photosynthetic pigments, photosystems, the Calvin cycle, the Hatch-Slack pathway, photorespiration, and photosynthetic yield improvement. ...

Muriel B. Bishop; Carl B. Bishop

1987-01-01T23:59:59.000Z

392

Sulfur-passivated nickel catalysts for carbon-free steam reforming of methane  

SciTech Connect (OSTI)

It has been observed that carbon-free steam reforming of methane can be obtained on a partly sulfur-passivated nickel catalyst under conditions which, without the presence of sulfur, would result in formation of whisker carbon. This effect has been studied by means of kinetic experiments and thermogravimetry. The kinetic data can be explained by simple blockage of the surface as reflected in the observed kinetic orders and activation energy. The studies of carbon formation confirm a threshold coverage of about 70% of full coverage below which the inhibition of carbon is not effective. Above this coverage, amorphous carbon structures may be formed at a very high carbon potentials. The retarding effect of sulfur on carbon formation is a dynamic phenomenon. Sulfur inhibits the rate of carbon formation more than the rate of the reforming reactions. The effects are explained by assuming that a large ensemble is involved in the nucleation of carbon, whereas the reforming reaction can proceed on the small ensembles left a high sulfur coverages. 6 figures, 6 tables.

Rostrup-Nielsen, J.R.

1984-01-01T23:59:59.000Z

393

In Situ Infrared Spectroscopic Study of Brucite Carbonation in...  

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

Carbonation in Dry to Water-Saturated Supercritical Carbon Dioxide. Abstract: In geologic carbon sequestration, while part of the injected carbon dioxide will dissolve into host...

394

Self-assembling functionalized single-walled carbon nanotubes  

E-Print Network [OSTI]

Single-walled carbon nanotubes Carbon nanotubes (CNTs) arescale synthesis of carbon nanotubes." Nature, Vol.358, 220-Ropes of Metallic Carbon Nanotubes." Science, Vol.273(5274),

Gao, Yan

2011-01-01T23:59:59.000Z

395

Carbon capture retrofits and the cost of regulatory uncertainty  

SciTech Connect (OSTI)

Power generation firms confront impending replacement of an aging coal-fired fleet in a business environment characterized by volatile natural gas prices and uncertain carbon regulation. We develop a stochastic dynamic programming model of firm investment decisions that minimizes the expected present value of future power generation costs under uncertain natural gas and carbon prices. We explore the implications of regulatory uncertainty on generation technology choice and the optimal timing of investment, and assess the implications of these choices for regulators. We find that interaction of regulatory uncertainty with irreversible investment always raises the social cost of carbon abatement. Further, the social cost of regulatory uncertainty is strongly dependent on the relative competitiveness of IGCC plants, for which the cost of later carbon capture retrofits is comparatively small, and on the firm's ability to use investments in natural gas generation as a transitional strategy to manage carbon regulation uncertainty. Without highly competitive IGCC or low gas prices, regulatory uncertainty can increase the expected social cost of reducing emissions by 40 to 60%.

Reinelt, P.S.; Keith, D.W. [SUNY College of Fredonia, Fredonia, NY (United States). Dept. of Economics

2007-07-01T23:59:59.000Z

396

Carbon/Ternary Alloy/Carbon Optical Stack on Mylar as an Optical...  

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

CarbonTernary AlloyCarbon Optical Stack on Mylar as an Optical Data Storage Medium to Potentially Replace Magnetic Tape. CarbonTernary AlloyCarbon Optical Stack on Mylar as an...

397

Introduction Dynamic Risk Measures  

E-Print Network [OSTI]

Introduction Dynamic Risk Measures Dynamic Risk Measures from BMO martingales Bid-Ask Dynamic Pricing Procedure Conclusion MESURES DE RISQUE DYNAMIQUES DYNAMIC RISK MEASURES Jocelyne Bion-Nadal CNRS Risk Measures Dynamic Risk Measures from BMO martingales Bid-Ask Dynamic Pricing Procedure Conclusion

Bion-Nadal, Jocelyne

398

Determination of the atherogenic potential of inhaled carbon monoxide  

SciTech Connect (OSTI)

he effects of chronic exposure to moderate levels of carbon monoxide upon the augmentation of arteriosclerotic plaque development were investigated in a series of in vivo studies in the cockerel (young rooster). This animal model has been well characterized, especially regarding the role of environmental agents in exacerbating early stages of plaque development. Cockerels injected with subtumorigenic doses of carcinogens exhibit markedly accelerated development of aortic arteriosclerotic plaques. Inhalation of mainstream smoke from two packs of cigarettes (100 minutes/day for 16 weeks) causes small but statistically significant increases in plaque size. As is the case with many animal models of plaque development, raised fat-proliferative plaques also appear in these animals following cholesterol feeding. Carbon monoxide is a ubiquitous pollutant in urban environments, where it is derived largely from mobile sources and cigarette smoke. Exposure to chronically elevated carbon monoxide levels has been implicated in a number of health-related problems. Whether such exposure plays a role in the development of arteriosclerosis has not been determined conclusively. In the present study, three questions were posed: 1. Will inhaled carbon monoxide at levels of 50 to 200 parts per million (ppm)* (two hours/day for 16 weeks) be sufficient to augment arteriosclerotic plaque development in cockerels, in the absence of other plaque-promoting agents 2. Will the inhalation of 100 ppm carbon monoxide (two hours/day for 16 weeks), concomitant with the feeding of low levels (0.1%) of cholesterol, yield larger plaques than those obtained with either of these agents administered alone 3. Will inhalation of 100 ppm carbon monoxide (two hours/day for 11 or 22 weeks), by cockerels in whom plaques have already appeared, further augment plaque development Cockerels were exposed to carefully regulated levels of carbon monoxide in stainless-steel and Plexiglas dynamic exposure chambers.

Penn, A. (New York Univ. Medical Center, NY (United States))

1993-05-01T23:59:59.000Z

399

Carbon Efficiency, Carbon Reduction Potential, and Economic Development in  

Open Energy Info (EERE)

Carbon Efficiency, Carbon Reduction Potential, and Economic Development in Carbon Efficiency, Carbon Reduction Potential, and Economic Development in the People's Republic of China Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Carbon Efficiency, Carbon Reduction Potential, and Economic Development in the People's Republic of China Agency/Company /Organization: Asian Development Bank Sector: Energy Focus Area: Energy Efficiency, Industry Topics: Low emission development planning, Policies/deployment programs, Background analysis Resource Type: Publications, Case studies/examples Website: www.adb.org/documents/studies/carbon-efficiency-prc/carbon-efficiency- Country: China UN Region: Eastern Asia Coordinates: 35.86166°, 104.195397° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.86166,"lon":104.195397,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

400

Carbonation Mechanism of Reservoir Rock by Supercritical Carbon Dioxide  

Open Energy Info (EERE)

Carbonation Mechanism of Reservoir Rock by Supercritical Carbon Dioxide Carbonation Mechanism of Reservoir Rock by Supercritical Carbon Dioxide Geothermal Lab Call Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Carbonation Mechanism of Reservoir Rock by Supercritical Carbon Dioxide Project Type / Topic 1 Laboratory Call for Submission of Applications for Research, Development and Analysis of Geothermal Technologies Project Type / Topic 2 Supercritical Carbon Dioxide / Reservoir Rock Chemical Interactions Project Description Supercritical CO2 is currently becoming a more common fluid for extracting volatile oil and fragrance compounds from various raw materials that are used in perfumery. Furthermore, its use as a heat transmission fluid is very attractive because of the greater uptake capability of heat from hot reservoir rock, compared with that of water. However, one concern was the reactivity of CO2 with clay and rock minerals in aqueous and non-aqueous environments. So if this reaction leads to the formation of water-soluble carbonates, such formation could be detrimental to the integrity of wellbore infrastructure.

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Carbonation Mechanism of Reservoir Rock by Supercritical Carbon Dioxide  

Broader source: Energy.gov [DOE]

Project Objectives: Elucidate comprehensively the carbonation reaction mechanisms between supercritical carbon dioxide (scCO2) and reservoir rocks consisting of different mineralogical compositions in aqueous and non-aqueous environments at temperatures of up to 250ºC, and to develop chemical modeling of CO2-reservior rock interactions.

402

Pyrolytic carbon electrodes Lithographically Defined Porous Carbon Electrodes**  

E-Print Network [OSTI]

to the intrinsic material properties of carbon, functionalized films can be produced through chemical modification fabrication method capable of producing large area (%100 s cm2 ) submicrometer porous carbon films. In our methodology. The palladium-modified electrodes exhibit a catalytic response for methanol oxidation

New Mexico, University of

403

Carbon Sequestration Science  

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

Science Science July 2001 Focus Area Overview Presentation Mission and Scope Program Relationships Scientific Challenges Research Plans Facility Plans Princeton.ppt 7/16/01 Carbon Sequestration Science Focus Area New Projects Contribute to Sequestration Science Systems Integration Virtual Simulation of CO 2 Capture Technologies Cleanup Stream Gas Gasification Gasification MEA CO 2 Capture Facility Oxygen Membrane 3 km 2 inch tube 800m - 20 °C, 20 atm Liquid CO 2 , 100 tons ~1 kg CO 2 / s = 5 MW ^ CO 2 Coal Other Fuels Coal Other Fuels CO 2 Sequestration Aquifer H 2 O Flue gas H 2 O CH 4 CH 4 CO 2 Oil field Oil well Power plant CH 4 Coal - bed Aquiclude H 2 O CO 2 /N 2 CO 2 N 2 CO 2 CO 2 CO 2 CO 2 CO 2 Water Rock , 2 Coal Other Fuels Coal Other Fuels Combustor Oxygen Membrane Princeton.ppt 7/16/01 Carbon Sequestration Science Focus Area

404

Chlorination of carbon nanotubes  

Science Journals Connector (OSTI)

We report ab initio density functional theory calculations for chlorinated single-wall carbon nanotubes and investigate the atomic structure, energetics, and electronic structure of the chlorinated nanotubes, as well as the energetics of the desorption reaction. We find that the Cl atoms should be adsorbed in pairs and thus focus on doubly chlorinated nanotubes. Using the terminology of arene substitution patterns, ortho and para configurations are the most stable. The physisorption is preferable to the chemisorption in large-diameter nanotubes. The impurity states appear near the Fermi level EF in the electronic structure and may alter the electronic properties considerably. The bonding character for adsorption outside the nanotube is mainly covalent, but inside it consists of physical bonding. The adsorption of several Cl atoms inside a carbon nanotube leads to the formation of a charged Cl chain. Our calculated desorption barrier of ?1.4 eV per Cl atom pair indicates that the cleansing by chlorination is a less damaging alternative with removable residue.

Dogan Erbahar and Savas Berber

2012-02-21T23:59:59.000Z

405

Carbon dioxide and climate  

SciTech Connect (OSTI)

Scientific and public interest in greenhouse gases, climate warming, and global change virtually exploded in 1988. The Department's focused research on atmospheric CO{sub 2} contributed sound and timely scientific information to the many questions produced by the groundswell of interest and concern. Research projects summarized in this document provided the data base that made timely responses possible, and the contributions from participating scientists are genuinely appreciated. In the past year, the core CO{sub 2} research has continued to improve the scientific knowledge needed to project future atmospheric CO{sub 2} concentrations, to estimate climate sensitivity, and to assess the responses of vegetation to rising concentrations of CO{sub 2} and to climate change. The Carbon Dioxide Research Program's goal is to develop sound scientific information for policy formulation and governmental action in response to changes of atmospheric CO{sub 2}. The Program Summary describes projects funded by the Carbon Dioxide Research Program during FY 1990 and gives a brief overview of objectives, organization, and accomplishments.

Not Available

1990-10-01T23:59:59.000Z

406

Structural graphitic carbon foams  

SciTech Connect (OSTI)

Graphitic carbon foams are a unique material form with very high structural and thermal properties at a light weight. A process has been developed to produce microcellular, open-celled graphitic foams. The process includes heating a mesophase pitch preform above the pitch melting temperature in a pressurized reactor. At the appropriate time, the pressure is released, the gas nucleates bubbles, and these bubbles grow forming the pitch into the foam structure. The resultant foamed pitch is then stabilized in an oxygen environment. At this point a rigid structure exists with some mechanical integrity. The foam is then carbonized to 800 C followed by a graphitization to 2700 C. The shear action from the growing bubbles aligns the graphitic planes along the foam struts to provide the ideal structure for good mechanical properties. Some of these properties have been characterized for some of the foam materials. It is known that variations of the blowing temperature, blowing pressure and saturation time result in foams of variously sized with mostly open pores; however, the mechanism of bubble nucleation is not known. Therefore foams were blown with various gases to begin to determine the nucleation method. These gases are comprised of a variety of molecular weights as well as a range of various solubility levels. By examining the resultant structures of the foam, differences were noted to develop an explanation of the foaming mechanism.

Kearns, K.M.; Anderson, H.J. [Air Force Lab., Wright-Patterson AFB, OH (United States). Materials and Mfg. Directorate

1998-12-31T23:59:59.000Z

407

Carbon Dioxide Carbonates in the Earth;s Mantle: Implications to the Deep Carbon Cycle  

SciTech Connect (OSTI)

An increase in the ionic character in C-O bonds at high pressures and temperatures is shown by the chemical/phase transformation diagram of CO{sub 2}. The presence of carbonate carbon dioxide (i-CO{sub 2}) near the Earth's core-mantle boundary condition provides insights into both the deep carbon cycle and the transport of atmospheric CO{sub 2} to anhydrous silicates in the mantle and iron core.

Yoo, Choong-Shik; Sengupta, Amartya; Kim, Minseob (Princeton); (WSU)

2012-05-22T23:59:59.000Z

408

Implications of a large global root biomass for carbon sink estimates and for soil carbon dynamics  

Science Journals Connector (OSTI)

...and J.-M Ottorini2001Root biomass and biomass increment in a beech (Fagus sylvatica...McMurtrie, and H McGilvray2002Does conversion of forest to agricultural land...H , and O Nagel2000The role of biomass allocation in the growth response...

2007-01-01T23:59:59.000Z

409

Implications of a large global root biomass for carbon sink estimates and for soil carbon dynamics  

Science Journals Connector (OSTI)

...the time when foliage, wood, debris, roots and...and 97% of global root biomass (Jackson et al. 1996...tropical woodland or plantation classes defined by Mokany...not rely exclusively on biomass inventories? The 1990-2005...rules for patterns of biomass partitioning in seed...

2007-01-01T23:59:59.000Z

410

Dynamic Positioning Simulator Dynamic Positioning Simulator  

E-Print Network [OSTI]

Simulator 5 / 24 #12;Dynamic Positioning Simulator Dynamic Positioning Why Dynamic Positioning? Advantages Dynamic Positioning: No tugboats needed; Offshore set-up is quick; Power saving; Precision situations more on Ship: Wind Force Fw = 1 2 air V 2 rw CXw (rw )AT 1 2 air V 2 rw CYw (rw )AL Mw = 1 2 air V 2 rw CMw (rw

Vuik, Kees

411

Carbon Dioxide Sequestration in Concrete Using Vacuum-Carbonation Alain Azar, Prof. Yixin Shao  

E-Print Network [OSTI]

Carbon Dioxide Sequestration in Concrete Using Vacuum-Carbonation Alain Azar, Prof. Yixin Shao promising carbon uptake results and is a viable option for carbonation curing. Carbon sequestration increase in Carbon dioxide (CO2) emissions over the past five decades, specific ways to reduce

Barthelat, Francois

412

Large Magnetization at Carbon Surfaces  

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

Large Magnetization at Carbon Large Magnetization at Carbon Surfaces Large Magnetization at Carbon Surfaces Print Wednesday, 31 August 2011 00:00 From organic matter to pencil lead, carbon is a versatile element. Now, another use has been found: magnets. One would not expect pure carbon to be magnetic, but for more than ten years scientists have suspected that carbon can be made to be magnetic by doping it with nonmagnetic materials, changing its order ever so slightly. Years ago, the first x-ray images obtained using the scanning transmission x-ray microscope at ALS Beamline 11.0.2 provided valuable insight into how proton irradiation can cause carbon to transform into a ferromagnetic material. Now, researchers are using x-ray spectroscopy at ALS Beamline 4.0.2 to study the magnetism of proton-irradiated graphite surfaces in order to understand the effects of hydrogen (i.e. protons) on the electronic structure of carbon. In studying the properties of electrons responsible for magnetic order in graphite, researchers found that a very large magnetic moment is essentially switched on when hydrogen atoms are incorporated at the surface of graphite.

413

Controlled growth of carbon nanotubes  

Science Journals Connector (OSTI)

...Terrones Controlled growth of carbon nanotubes R. Vajtai 1 B. Q. Wei 2 P. M. Ajayan...Rouge, LA 70803-5901, USA Carbon nanotubes have extraordinary mechanical and electronic...state-of-the-art account of tailored nanotube growth. To provide these properties...

2004-01-01T23:59:59.000Z

414

Plasmachemical Synthesis of Carbon Suboxide  

E-Print Network [OSTI]

A nonthermal carbon monoxide plasma is known to produce a solid deposition which is thought to be a polymer of carbon suboxide (C3O2); however there are very few investigations of this deposition in the literature. This thesis contains an analysis...

Geiger, Robert

2012-12-11T23:59:59.000Z

415

Capture of carbon dioxide from ambient air  

Science Journals Connector (OSTI)

Carbon dioxide capture from ambient air could compensate for all carbon dioxide emissions to the atmosphere. Such capture would, for example, make it possible to use liquid, carbon-based fuels in cars or airplane...

K.S. Lackner

2009-09-01T23:59:59.000Z

416

Carbon dioxide capture and geological storage  

Science Journals Connector (OSTI)

...Blundell and Fraser Armstrong Carbon dioxide capture and geological storage Sam...Nottingham NG12 5GG, UK Carbon dioxide capture and geological storage is a...80-90%. It involves the capture of carbon dioxide at a large industrial...

2007-01-01T23:59:59.000Z

417

Nanobiocatalysts for Carbon Capture, Sequestration and Valorisation  

Science Journals Connector (OSTI)

The approaches being pursued for carbon management includes: (i) increased efficiency of ... energy conversion, (ii) usage of low-carbon or carbon-free energy sources, and (iii) capturing and sequestering anthrop...

Sadhana Rayalu; Renu Yadav; Snehal Wanjari; Chandan Prabhu…

2012-11-01T23:59:59.000Z

418

Carbon Market Brasil Consulting | Open Energy Information  

Open Energy Info (EERE)

Brasil Consulting Jump to: navigation, search Name: Carbon Market Brasil Consulting Place: Sao Paulo, Brazil Zip: 04120-070 Sector: Carbon Product: Brazil-based carbon Market is a...

419

Microstructure of metal-filled carbon nanotubes  

Science Journals Connector (OSTI)

......Microstructure of metal-filled carbon nanotubes Shoichi Toh 1 Kenji Kaneko 2 Yasuhiko...are usually required to produce carbon nanotubes (CNTs) and play important roles during...mechanisms. metal filling|MPCVD|carbon|nanotube|palladium|microstructure| Microstructure......

Shoichi Toh; Kenji Kaneko; Yasuhiko Hayashi; Tomoharu Tokunaga; Won-Jin Moon

2004-04-01T23:59:59.000Z

420

A method for characterizing carbon nanotubes  

Science Journals Connector (OSTI)

......Letter A method for characterizing carbon nanotubes Toshie Yaguchi 1 Takahiro Sato 1 Takeo...spectroscopy of a multi-walled carbon nanotube (MWCNT) at elevated temperatures were...spectroscopy|multi&hyphen|walled carbon nanotube|specimen&hyphen|heating holder......

Toshie Yaguchi; Takahiro Sato; Takeo Kamino; Yoshifumi Taniguchi; Kenichi Motomiya; Kazuyuki Tohji; Atsuo Kasuya

2001-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Carbon Capital Markets | Open Energy Information  

Open Energy Info (EERE)

Carbon Product: London-based fund manager and trader specialising in the carbon and clean energy markets. References: Carbon Capital Markets1 This article is a stub. You can help...

422

Carbon Nanotubes: Bearing Stress Like Never Before  

E-Print Network [OSTI]

A.J. (2013). Carbon Nanotubes: Present and Future CommercialP.M. (2008). Carbon Nanotubes. A. Jorio, G. Dresselhaus, &V.N. (2004). Carbon Nanotubes: properties and application.

Limaye, Aditya

2013-01-01T23:59:59.000Z

423

Defects and Disorder in Carbon Nanotubes  

E-Print Network [OSTI]

Perebeinos, V. (2008) Carbon Nanotubes 111 423. Bachilo, S.P. L. (2008) Carbon Nanotubes 111 Biro, L. P. , Khanh, N.structure of carbon nanotubes. Fullerenes '96. Oxford, UK.

Collins, Philip G

2010-01-01T23:59:59.000Z

424

Carbon Fiber Composite Cellular A Dissertation  

E-Print Network [OSTI]

Carbon Fiber Composite Cellular Structures ____________________________________ A Dissertation and honeycombs. However, for weight sensitive, ambient temperature applications, carbon fiber composites have emerged as a promising material due to its high specific strength and low density. Carbon fiber reinforced

Wadley, Haydn

425

Porous Carbon Nanoparticle Networks with Tunable Absorbability  

E-Print Network [OSTI]

and repel liquid droplets2,3 . Recently, carbon materials such as amorphous carbon coatings, graphene foams carbon materials or structures have been used extensively as electrode materials for batteries and super

Kim, Ho-Young

426

ASSESSMENT OF BUILDING LIFECYLE CARBON EMISSIONS  

E-Print Network [OSTI]

Even though the Carbon Capture & Sequestration Technologies (CC & ST) program at the Massachusetts Institute of Technology initiated carbon emission research in late 1990s (CSI, 2013), carbon emissions has only become a hot topic in the last decade...

Kwok, George

2014-05-31T23:59:59.000Z

427

2e Carbon Access | Open Energy Information  

Open Energy Info (EERE)

Access Jump to: navigation, search Name: 2e Carbon Access Place: New York, New York Zip: 10280 Sector: Carbon Product: 2E Carbon Access is an enterprise focused solely on bringing...

428

Carbon Nanotubes: Bearing Stress Like Never Before  

E-Print Network [OSTI]

of the mechanical properties of carbon nanotube– polymercomposites. Carbon, 44. 1624 – 1652 doi: 10.1016/j.R.H. , & Hart, A.J. (2013). Carbon Nanotubes: Present and

Limaye, Aditya

2013-01-01T23:59:59.000Z

429

Who Pays a Price on Carbon?  

E-Print Network [OSTI]

on a per-capita basis a carbon price is much more regressiveadverse distributional effects of a carbon emissions policy.Distributional incidence · Carbon tax · Tradable permits Q52

Grainger, Corbett A.; Kolstad, Charles D.

2010-01-01T23:59:59.000Z

430

Carbon Dioxide and Methane Emissions from Estuaries  

Science Journals Connector (OSTI)

Carbon dioxide and methane emissions from estuaries are reviewed in relation with biogeochemical processes and carbon cycling. In estuaries, carbon dioxide and methane emissions show a large spatial and temporal ...

Gwenaël Abril; Alberto Vieira Borges

2005-01-01T23:59:59.000Z

431

Climate policy and dependence on traded carbon  

E-Print Network [OSTI]

of human development and carbon emissions embodied in trade03.html) Lo A Y 2012 Carbon emissions trading in Chinagoal is to regulate carbon emissions, then, because only a

Andrew, Robbie M; Davis, Steven J; Peters, Glen P

2013-01-01T23:59:59.000Z

432

ARM - Measurement - Organic Carbon Concentration  

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

govMeasurementsOrganic Carbon Concentration govMeasurementsOrganic Carbon Concentration ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Organic Carbon Concentration The concentration of carbon bound in organic compounds. Categories Aerosols Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments ACSM : Aerosol Chemical Speciation Monitor Field Campaign Instruments AEROSCARBON : Aerosol Carbon Analyzer AEROSMASSSPEC : Aerosol Mass Spectrometer Datastreams AOS : Aerosol Observing System Datastreams

433

NETL: Carbon Capture FAQs  

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

How is CO2 captured? How is CO2 captured? Chilled Ammonia CO2 Capture Process Facility at American Electric Power's (AEP) Mountaineer Plant Chilled Ammonia CO2 Capture Process Facility at American Electric Power's (AEP) Mountaineer Plant Carbon dioxide (CO2) capture involves separating CO2 from other gases generated by industrial processes or burning fossil fuels. CO2 capture can remove as much as 95% of the CO2 from these processes. There are two major types of anthropogenic CO2 sources: mobile and stationary. Mobile sources include things like cars, trucks, trains, boats, and aircrafts that burn fossil fuels and generate CO2. Capturing CO2 from mobile sources is currently impractical. Stationary sources include power plants and industrial facilities that burn fossil fuels, as

434

NETL: Carbon Storage FAQs  

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

Where is CO2 storage happening today? Where is CO2 storage happening today? Sleipner Project (Norway) Sleipner Project (Norway) Carbon dioxide (CO2) storage is currently happening across the United States and around the world. Large, commercial-scale projects, like the Sleipner CO2 Storage Site in Norway, the Weyburn-Midale CO2 Project in Canada, and the In Salah project in Algeria, have been injecting CO2 for many years. Each of these projects stores more than 1 million tons of CO2 per year. Large-scale efforts are currently underway in Africa, China, Australia, and Europe, too. These commercial-scale projects are demonstrating that large volumes of CO2 can be safely and permanently stored. Additionally, a multitude of pilot efforts are underway in different parts of the world to determine suitable locations and technologies for future

435

NETL Mineral Carbonation Workshop  

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

Overview Overview Mineral Carbonation Workshop August 8, 2001 Carl O. Bauer, Associate Laboratory Director Descriptor - include initials, /org#/date We Are: * One of DOE's 15 national laboratories * Government owned and operated * Sites in Oklahoma, Pennsylvania, and West Virginia * Over 1,100 federal and support contractor employees * FY01 budget of $774 million July 2001 Descriptor - include initials, /org#/date Sites in Pennsylvania, West Virginia, Oklahoma Morgantown, WV Pittsburgh, PA Tulsa, OK Descriptor - include initials, /org#/date Our Mission * Resolve the environmental, supply, and reliability constraints of producing and using fossil resources to provide Americans with a stronger economy, healthier environment, and more secure future * Support development and deployment of environmental technologies that reduce

436

GFDL’s ESM2 Global Coupled Climate–Carbon Earth System Models. Part I: Physical Formulation and Baseline Simulation Characteristics  

Science Journals Connector (OSTI)

The physical climate formulation and simulation characteristics of two new global coupled carbon–climate Earth System Models, ESM2M and ESM2G, are described. These models demonstrate similar climate fidelity as the Geophysical Fluid Dynamics ...

John P. Dunne; Jasmin G. John; Alistair J. Adcroft; Stephen M. Griffies; Robert W. Hallberg; Elena Shevliakova; Ronald J. Stouffer; William Cooke; Krista A. Dunne; Matthew J. Harrison; John P. Krasting; Sergey L. Malyshev; P. C. D. Milly; Peter J. Phillipps; Lori T. Sentman; Bonita L. Samuels; Michael J. Spelman; Michael Winton; Andrew T. Wittenberg; Niki Zadeh

2012-10-01T23:59:59.000Z

437

Carbon and carbon monoxide hydrogenation on nickel: support effects  

SciTech Connect (OSTI)

Hydrogenation of carbon, deposited on nickel catalysts by CO disproportionation, was investigated by temperature-programmed surface reaction (TPSR) for four oxide supports, alumina (Al/sub 2/O/sub 3/), silica (SiO/sub 2/), titanium oxide (TiO/sub 2/), and SiO/sub 2/.Al/sub 2/O/sub 3/. The rate of carbon monoxide hydrogenation was measured by temperature-programmed reaction (TPR) for comparison. The rate of carbon hydrogenation to methane was found to be independent of the support and an average activation energy of 42 kJ/mol was estimated. In contrast, the rate of carbon monoxide hydrogenation was very sensitive to the catalyst support. Nickel (Ni) supported on TiO/sub 2/ exhibited the highest specific activity, and two distinct sites for methanation were observed on Ni/TiO/sub 2/ and Ni/Al/sub 2/O/sub 3/. The lowest specific activities were observed for Ni/SiO/sub 2/ and Ni/SiO/sub 2/.Al/sub 2/O/sub 3/. For all catalysts, carbon hydrogenation occurred at a lower temperature than carbon monoxide hydrogenation. For both TPR and TPSR, small amounts of ethane were formed and at a lower temperature than methane. The amount of less-active, ..beta..-carbon observed in TPSR experiments was very small on all catalysts. These results indicate that at high coverages, carbon hydrogenation does not depend on the support, and thus it is not rate-determining for CO hydrogenation in excess hydrogen. The support is also shown to change the specific rate of carbon monoxide methanation; activity differences seen in steady-state experiments are not just due to differences in site densities. 5 figures, 5 tables.

Ozdogan, S.Z.; Gochis, P.D.; Falconer, J.L.

1983-10-01T23:59:59.000Z

438

Speeding Up Zeolite Evaluation for Carbon Capture  

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

Speeding Up Zeolite Evaluation for Carbon Capture Speeding Up Zeolite Evaluation for Carbon Capture Zeolite.png Schematic of an important class of porous materials known as...

439

Multiphase Sequestration Geochemistry: Model for Mineral Carbonation...  

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

for Mineral Carbonation. Abstract: Carbonation of formation minerals converts low viscosity supercritical CO2 injected into deep saline reservoirs for geologic sequestration...

440

GEOLOGIC CARBON SEQUESTRATION STRATEGIES FOR CALIFORNIA  

E-Print Network [OSTI]

CALIFORNIA ENERGY COMMISSION GEOLOGIC CARBON SEQUESTRATION STRATEGIES FOR CALIFORNIA to extend our thanks to the authors of various West Coast Regional Carbon Sequestration Partnership

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Putting the pressure on carbon dioxide | EMSL  

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

Putting the pressure on carbon dioxide Improving the chances for fuel recovery and carbon sequestration Artwork from this research graces the cover of Environmental Science...

442

Prospects for Enhancing Carbon Sequestration and Reclamation...  

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

Prospects for Enhancing Carbon Sequestration and Reclamation of Degraded Lands with Fossil-fuel Combustion By-products. Prospects for Enhancing Carbon Sequestration and Reclamation...

443

Robust carbon monolith having hierarchical porosity  

DOE Patents [OSTI]

A carbon monolith includes a robust carbon monolith characterized by a skeleton size of at least 100 nm, and a hierarchical pore structure having macropores and mesopores.

Dai, Sheng; Guiohon, Georges A; Liang, Chengdu

2013-02-05T23:59:59.000Z

444

Robust carbon monolith having hierarchical porosity  

SciTech Connect (OSTI)

A carbon monolith includes a robust carbon monolith characterized by a skeleton size of at least 100 nm, and a hierarchical pore structure having macropores and mesopores.

Dai, Sheng; Guiochon, Georges A; Liang, Chengdu

2014-01-14T23:59:59.000Z

445

Thermoelectric Fabrics? based on carbon nanotube composites...  

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

based on carbon nanotube composites Composite films of multi-walled carbon nanotubespolyvinylidene fluoride layered into multiple element modules, results in...

446

Carbon nanotubes : synthesis, characterization, and applications  

E-Print Network [OSTI]

Surface-Attached Carbon Nanotubes. Ind. Eng. Chem. Res. ,Structure of Carbon Nanotubes. Journal of Physical ChemistryP.G. and P. Avouris, Nanotubes for Electronics. Scientific

Deck, Christian Peter

2009-01-01T23:59:59.000Z

447

Functionalized carbon nanotubes and nanofibers for biosensing...  

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

carbon nanotubes and nanofibers for biosensing applications. Functionalized carbon nanotubes and nanofibers for biosensing applications. Abstract: This review summarizes the recent...

448

Carbon nanotubes : synthesis, characterization, and applications  

E-Print Network [OSTI]

of carbon nanotubes by transmission electron energy-lossEnergy Gaps in "Metallic" Single-Walled Carbon Nanotubes.nanotubes, absorbance increases with increasing light energy

Deck, Christian Peter

2009-01-01T23:59:59.000Z

449

Hydrogen Adsorption Induces Interlayer Carbon Bond Formation...  

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

Hydrogen Adsorption Induces Interlayer Carbon Bond Formation in Supported Few-Layer Graphene Friday, February 28, 2014 Among the allotropes of carbon, diamond has some of the most...

450

Metal supported carbon nanostructures for hydrogen storage.  

E-Print Network [OSTI]

??Carbon nanocones are the fifth equilibrium structure of carbon, first synthesized in 1997. They have been selected for investigating hydrogen storage capacity, because initial temperature… (more)

Matelloni, Paolo

2012-01-01T23:59:59.000Z

451

Electrical Transport in Carbon Nanotubes and Graphene  

E-Print Network [OSTI]

Introduction to Carbon Nanotubes and Graphene Single wallCarbon nanotubes and graphene are the most popular Carbonin the Normal Metal – Graphene – Superconductor Junctions

Liu, Gang

2010-01-01T23:59:59.000Z

452

CFTF | Carbon Fiber Technology Facility | ORNL  

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

BTRIC CNMS CSMB CFTF Working with CFTF HFIR MDF NTRC OLCF SNS Carbon Fiber Technology Facility Home | User Facilities | CFTF CFTF | Carbon Fiber Technology Facility SHARE Oak...

453

Project Profile: Regenerative Carbonate-Based Thermochemical...  

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

Regenerative Carbonate-Based Thermochemical Energy Storage System for Concentrating Solar Power Project Profile: Regenerative Carbonate-Based Thermochemical Energy Storage System...

454

California Low Carbon Fuels Infrastructure Investment Initiative...  

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

California Low Carbon Fuels Infrastructure Investment Initiative California Low Carbon Fuels Infrastructure Investment Initiative 2012 DOE Hydrogen and Fuel Cells Program and...

455

Numerical simulation and modeling of carbon nanotubes.  

E-Print Network [OSTI]

??The discovery of carbon nanotubes has triggered a significant amount of interest. Since then, much research has been done on these new forms of carbon… (more)

Wong, Chee How.

2008-01-01T23:59:59.000Z

456

CHEMICAL MODIFICATION AND CHARACTERIZATION OF CARBON NANOTUBES.  

E-Print Network [OSTI]

??Carbon nanotubes (CNTs) are a relatively new allotrope of carbon that possess very unique and exciting physical characteristics. However, much is still unknown regarding their… (more)

Cassity, Kelby Brandan

2010-01-01T23:59:59.000Z

457

Economics of geological sequestration and carbon management.  

E-Print Network [OSTI]

??In this carbon-constrained world, carbon management options for climate change mitigation are becoming increasingly important, especially in China, one of the largest energy consuming and… (more)

Su, Hui, 1976-

2010-01-01T23:59:59.000Z

458

CARBON SEQUESTRATION IN NATURAL AND CREATED WETLANDS.  

E-Print Network [OSTI]

?? Wetland ecosystems are significant carbon sinks. Their high productivity and presence of water gives them the ability to efficiently sequester carbon in the soil,… (more)

Bernal, Blanca

2012-01-01T23:59:59.000Z

459

Carbon Fiber Technology Facility | Department of Energy  

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

Carbon Fiber Technology Facility Carbon Fiber Technology Facility 2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation...

460

Carbon Fiber Technology Facility | Department of Energy  

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

Carbon Fiber Technology Facility Carbon Fiber Technology Facility 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation...

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Carbon Fiber Technology Facility | Department of Energy  

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

Carbon Fiber Technology Facility Carbon Fiber Technology Facility 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation...

462

A chemistry tale of two carbons | EMSL  

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

A chemistry tale of two carbons A chemistry tale of two carbons Comprehensive field study of urban, natural emissions interacting to affect climate change Data from the CARES...

463

Greenstone Carbon Management Ltd | Open Energy Information  

Open Energy Info (EERE)

London-based specialist carbon solutions provider to measure, manage and mitigate their carbon emissions and realise business and financial benefits. References: Greenstone...

464

Large Magnetization at Carbon Surfaces  

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

Large Magnetization at Carbon Surfaces Print Large Magnetization at Carbon Surfaces Print From organic matter to pencil lead, carbon is a versatile element. Now, another use has been found: magnets. One would not expect pure carbon to be magnetic, but for more than ten years scientists have suspected that carbon can be made to be magnetic by doping it with nonmagnetic materials, changing its order ever so slightly. Years ago, the first x-ray images obtained using the scanning transmission x-ray microscope at ALS Beamline 11.0.2 provided valuable insight into how proton irradiation can cause carbon to transform into a ferromagnetic material. Now, researchers are using x-ray spectroscopy at ALS Beamline 4.0.2 to study the magnetism of proton-irradiated graphite surfaces in order to understand the effects of hydrogen (i.e. protons) on the electronic structure of carbon. In studying the properties of electrons responsible for magnetic order in graphite, researchers found that a very large magnetic moment is essentially switched on when hydrogen atoms are incorporated at the surface of graphite.

465

Large Magnetization at Carbon Surfaces  

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

Large Magnetization at Carbon Surfaces Print Large Magnetization at Carbon Surfaces Print From organic matter to pencil lead, carbon is a versatile element. Now, another use has been found: magnets. One would not expect pure carbon to be magnetic, but for more than ten years scientists have suspected that carbon can be made to be magnetic by doping it with nonmagnetic materials, changing its order ever so slightly. Years ago, the first x-ray images obtained using the scanning transmission x-ray microscope at ALS Beamline 11.0.2 provided valuable insight into how proton irradiation can cause carbon to transform into a ferromagnetic material. Now, researchers are using x-ray spectroscopy at ALS Beamline 4.0.2 to study the magnetism of proton-irradiated graphite surfaces in order to understand the effects of hydrogen (i.e. protons) on the electronic structure of carbon. In studying the properties of electrons responsible for magnetic order in graphite, researchers found that a very large magnetic moment is essentially switched on when hydrogen atoms are incorporated at the surface of graphite.

466

Large Magnetization at Carbon Surfaces  

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

Large Magnetization at Carbon Surfaces Print Large Magnetization at Carbon Surfaces Print From organic matter to pencil lead, carbon is a versatile element. Now, another use has been found: magnets. One would not expect pure carbon to be magnetic, but for more than ten years scientists have suspected that carbon can be made to be magnetic by doping it with nonmagnetic materials, changing its order ever so slightly. Years ago, the first x-ray images obtained using the scanning transmission x-ray microscope at ALS Beamline 11.0.2 provided valuable insight into how proton irradiation can cause carbon to transform into a ferromagnetic material. Now, researchers are using x-ray spectroscopy at ALS Beamline 4.0.2 to study the magnetism of proton-irradiated graphite surfaces in order to understand the effects of hydrogen (i.e. protons) on the electronic structure of carbon. In studying the properties of electrons responsible for magnetic order in graphite, researchers found that a very large magnetic moment is essentially switched on when hydrogen atoms are incorporated at the surface of graphite.

467

Black carbon snow albedo reduction  

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

Black carbon snow albedo reduction Black carbon snow albedo reduction Title Black carbon snow albedo reduction Publication Type Journal Article Year of Publication 2012 Authors Hadley, Odelle L., and Thomas W. Kirchstetter Journal Nature Climate Change Volume 2 Pagination 437-440 Abstract Climate models indicate that the reduction of surface albedo caused by black-carbon contamination of snow contributes to global warming and near-worldwide melting of ice1, 2. In this study, we generated and characterized pure and black-carbon-laden snow in the laboratory and verified that black-carbon contamination appreciably reduces snow albedo at levels that have been found in natural settings1, 3, 4. Increasing the size of snow grains in our experiments decreased snow albedo and amplified the radiative perturbation of black carbon, which justifies the aging-related positive feedbacks that are included in climate models. Moreover, our data provide an extensive verification of the Snow, Ice and Aerosol Radiation model1, which will be included in the next assessment of the Intergovernmental Panel on Climate Change5.

468

Large Magnetization at Carbon Surfaces  

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

Large Magnetization at Carbon Surfaces Print Large Magnetization at Carbon Surfaces Print From organic matter to pencil lead, carbon is a versatile element. Now, another use has been found: magnets. One would not expect pure carbon to be magnetic, but for more than ten years scientists have suspected that carbon can be made to be magnetic by doping it with nonmagnetic materials, changing its order ever so slightly. Years ago, the first x-ray images obtained using the scanning transmission x-ray microscope at ALS Beamline 11.0.2 provided valuable insight into how proton irradiation can cause carbon to transform into a ferromagnetic material. Now, researchers are using x-ray spectroscopy at ALS Beamline 4.0.2 to study the magnetism of proton-irradiated graphite surfaces in order to understand the effects of hydrogen (i.e. protons) on the electronic structure of carbon. In studying the properties of electrons responsible for magnetic order in graphite, researchers found that a very large magnetic moment is essentially switched on when hydrogen atoms are incorporated at the surface of graphite.

469

Tree Species Effects on Soil Organic Matter Dynamics: The Role of Soil  

E-Print Network [OSTI]

Tree Species Effects on Soil Organic Matter Dynamics: The Role of Soil Cation Composition Sarah E the influence of tree species on soil carbon and nitrogen (N) dynamics in a common garden of replicated substantial divergence in foliar and soil base cation concentrations and soil pH among spe- cies, we

Minnesota, University of

470

A Molecular Dynamics Simulation of Hydrogen Storage by SWNTs Tatsuto Kimuraa  

E-Print Network [OSTI]

A Molecular Dynamics Simulation of Hydrogen Storage by SWNTs Tatsuto Kimuraa and Shigeo Maruyamab of efficient hydrogen storage [1] with SWNTs [2,3] was studied through classical molecular dynamics simulations adsorbed hydrogen molecules was almost proportional to the number of carbon atoms, and the storage amount

Maruyama, Shigeo

471

PlaneCarbon | Open Energy Information  

Open Energy Info (EERE)

PlaneCarbon PlaneCarbon Jump to: navigation, search Name PlaneCarbon Address 9149 N. 109th Place Place Scottsdale, Arizona Zip 85259 Sector Carbon Product PlaneCarbon Year founded 2002 Number of employees 1-10 Phone number 480-205-0881 Website http://iteknowledgies.com/tran References Iteknowledgies[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! TODO: Determine if all of this content is appropriate and has a neutral point of view. PlaneCarbon, a division of Iteknowledgies International, is a company based in Scottsdale, Arizona. PlaneCarbon purchases carbon credits to achieve carbon neutral operation of your aircraft based on the average utilization of a specific aircraft in hours per year and then calculating the amount of fuel burned and purchasing offsetting carbon credits to achieve carbon

472

Workshop on Carbon Sequestration Science - Ocean Carbon Sequestration  

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

Ocean Carbon Ocean Carbon Sequestration Howard Herzog MIT Energy Laboratory May 24, 2001 Ocean Carbon Sequestration Options * The direct injection of a relatively pure CO 2 stream that has been generated, for example, at a power plant or from an industrial process * The enhancement of the net oceanic uptake from the atmosphere, for example, through iron fertilization The DOE Center for Research on Ocean Carbon Sequestration (DOCS) * Established July 1999 * Centered at LBNL and LLNL * Participants S Eric Adams MIT S Jim Barry MBARI S Jim Bishop DOCS Scientific Co-director LBNL S Ken Caldeira DOCS Scientific Co-director LLNL S Sallie Chisholm MIT S Kenneth Coale Moss Landing Marine Laboratory S Russ Davis Scripps Institution of Oceanography S Paul Falkowski Rutgers S Howard Herzog MIT S Gerard Nihous Pacific International Center for High Technology Research

473

NETL: Carbon Storage - NETL Carbon Capture and Storage Database  

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

CCS Database CCS Database Carbon Storage NETL's Carbon Capture, Utilization, and Storage Database - Version 4 Welcome to NETL's Carbon Capture, Utilization, and Storage (CCUS) Database. The database includes active, proposed, canceled, and terminated CCUS projects worldwide. Information in the database regarding technologies being developed for capture, evaluation of sites for carbon dioxide (CO2) storage, estimation of project costs, and anticipated dates of completion is sourced from publically available information. The CCUS Database provides the public with information regarding efforts by various industries, public groups, and governments towards development and eventual deployment of CCUS technology. As of November 2012, the database contained 268 CCUS projects worldwide. The 268 projects include 68 capture, 61 storage, and 139 for capture and storage in more than 30 countries across 6 continents. While most of the projects are still in the planning and development stage, or have recently been proposed, 37 are actively capturing and injecting CO2

474

NETL: Carbon Storage - West Coast Regional Carbon Sequestration Partnership  

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

WESTCARB WESTCARB Carbon Storage West Coast Regional Carbon Sequestration Partnership MORE INFO Additional information related to ongoing WESTCARB efforts can be found on their website. The West Coast Regional Carbon Sequestration Partnership (WESTCARB) is led by the California Energy Commission and represents a coalition of more than 90 organizations from state and provincial resource management and environmental protection agencies; national laboratories and research institutions; colleges and universities; conservation non-profits; oil and gas companies; power companies; pipeline companies; trade associations; vendors and service firms; and consultants. The partners are engaged in several aspects of WESTCARB projects and contribute to the efforts to deploy carbon storage projects on the west coast of North America. WESTCARB

475

NETL: Carbon Storage - Southwest Regional Partnership on Carbon  

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

Southwest Regional Partnership on Carbon Sequestration Southwest Regional Partnership on Carbon Sequestration MORE INFO Additional information related to ongoing SWP efforts can be found on their website. The Southwest Regional Partnership on Carbon Sequestration (SWP) is led by the New Mexico Institute of Mining and Technology and represents a coalition composed of a diverse group of experts in geology, engineering, economics, public policy, and outreach. The 50 SWP partners represent state and federal agencies, universities, electric utilities, non-governmental organizations, coal, oil and gas companies, and the Navajo Nation. The partners are engaged in several aspects of SWP projects and contribute to the efforts to deploy carbon capture and storage (CCS) projects in the southwestern region of the United States. SWP encompasses Arizona,

476

Carbon Dioxide Capture with Amine-Grafted Activated Carbon  

Science Journals Connector (OSTI)

There are several possible methods by which amine groups can be grafted on the surface of activated carbon (AC) to improve their capacity for...2 adsorption. Ethylenediamine and diethylenetriamine were selected a...

Amirhossein Houshmand; Wan Mohd Ashri Wan Daud; Min-Gyu Lee…

2012-02-01T23:59:59.000Z

477

The Role of Mineral Carbonation in Carbon Capture  

Science Journals Connector (OSTI)

A number of aqueous-phase-based indirect mineral carbonation studies have focused on enhancing the reactivity of Mg-silicates through the addition of weak acids and additives that increase silicate dissolution...

Prof. Jennifer Wilcox

2012-01-01T23:59:59.000Z

478

Carbon Cloth Reinforced Carbon Aerogel Films Derived from Resorcinol Formaldehyde  

Science Journals Connector (OSTI)

Carbon cloth reinforced RF (Resorcinol Formaldehyde) aerogel films have been produced with extremely high RC ratio (molar ratio of resorcinol to catalyst) or with no catalyst at all. The gels were subcriticall...

J. Wang; M. Glora; R. Petricevic; R. Saliger; H. Proebstle…

2001-03-01T23:59:59.000Z

479

Soil warming, carbon–nitrogen interactions, and forest carbon budgets  

Science Journals Connector (OSTI)

...atmosphere–ocean–land earth system models to accurately simulate land...atmosphere–ocean–land earth system models by comparing terrestrial carbon...atmosphere–ocean–land earth system models (44...

Jerry M. Melillo; Sarah Butler; Jennifer Johnson; Jacqueline Mohan; Paul Steudler; Heidi Lux; Elizabeth Burrows; Francis Bowles; Rose Smith; Lindsay Scott; Chelsea Vario; Troy Hill; Andrew Burton; Yu-Mei Zhou; Jim Tang

2011-01-01T23:59:59.000Z

480

Original article Growth dynamics, transpiration and water-use  

E-Print Network [OSTI]

Original article Growth dynamics, transpiration and water-use efficiency in Quercus robur plants. Transpiration efficiency (W = biomass accumulation/plant water use) was improved by 47% by the elevated [CO2 by theory. elevated CO2 / growth / leaf gas exchange / water-use efficiency / carbon isotope discrimination

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "themes carbon dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

AT 750: Climate dynamics: Atmospheric variability Textbook: No textbook required.  

E-Print Network [OSTI]

. 6. The writing projects include an in-depth review of the research topics discussed in class will cover a second "hot" topic in the field of climate dynamics. The goal of the class is to develop carbon and tropospheric ozone. Nature, 485, 350­354, doi:10.1038/nature11097. Arblaster J.M. and G

482

Thermoelectric power in carbon nanotubes  

SciTech Connect (OSTI)

The theoretical results for the temperature dependence of the thermoelectric power of graphite and semimetal carbon nanotubes are reported. In the calculations, the cylindrical superatomic range structure of nanotubes is taken into account. The Boltzmann equation and the {pi}-electron model of semimetal carbon nanotubes are used. The basic parameters of the calculation are the concentration of electrons, the Fermi energy, and the energy of the local level associated with the cylindrical structure of carbon nanotubes. The theoretical results are compared with the available experimental data.

Mavrinskiy, A. V., E-mail: mavrinsky@gmail.com; Baitinger, E. M. [Chelyabinsk State Pedagogical University (Russian Federation)

2009-04-15T23:59:59.000Z

483

Carbon Dioxide: Threat or Opportunity?  

E-Print Network [OSTI]

tion will be by direct combustion for the generation of power, but an increasing proportion will be con verted to syngas for chemical and fuel uses. Coal gasification is projected to become a major industry in the next decade. For every ton of coal... entering the gasification process, 1.88 lons of carbon dio xide are produced. This carbon dioxide is removed in virtually pure form by existing technology. This same technology can be applied to remove carbon dioxide from stack gases produced by power...

McKinney, A. R.

1982-01-01T23:59:59.000Z

484

Energy Dynamics Corporation | Open Energy Information  

Open Energy Info (EERE)

Dynamics Corporation Dynamics Corporation Jump to: navigation, search Name Energy Dynamics Corporation Place Escondido, California Zip 92029 Sector Carbon Product String representation "EDC's technolog ... potable water." is too long. Coordinates 33.12316°, -117.082169° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":33.12316,"lon":-117.082169,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

485

Cybersecurity Dynamics Shouhuai Xu  

E-Print Network [OSTI]

Cybersecurity Dynamics Shouhuai Xu Department of Computer Science, University of Texas at San Antonio ABSTRACT We explore the emerging field of Cybersecurity Dynamics, a candidate foundation for the Science of Cybersecurity. Keywords Cybersecurity dynamics, security model, security analysis 1

Xu, Shouhuai

486

NETL: Carbon Storage FAQs  

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

different options for CO2 storage? different options for CO2 storage? Oil and gas reservoirs, many containing carbon dioxide (CO2), as well as natural deposits of almost pure CO2, can be found in many places in the United States and around the world. These are examples of long-term storage of CO2 by nature, where "long term" means millions of years. Their existence demonstrates that naturally occurring geologic formations and structures of various kinds are capable of securely storing CO2 deep in the subsurface for very long periods of time. Because of the economic importance of oil and gas, scientists and engineers have studied these natural deposits for many decades in order to understand the physical and chemical processes which led to their formation. There are also many decades of engineering experience in subsurface operations similar to those needed for CO2 storage. The most directly applicable experience comes from the oil industry, which, for 40 years, has injected CO2 in depleted oil reservoirs for the recovery of additional product through enhanced oil recovery (EOR). Additional experience comes from natural gas storage operations, which have utilized depleted gas reservoirs, as well as reservoirs containing only water. Scientists and engineers are now combining the knowledge obtained from study of natural deposits with experience from analogous operations as a basis for studying the potential for large-scale storage of CO2 in the deep subsurface.

487

Thermal resistance and phonon scattering at the interface between carbon nanotube and amorphous polyethylene  

E-Print Network [OSTI]

polyethylene Sho Hida a , Takuma Hori a , Takuma Shiga a , James Elliott b , Junichiro Shiomi a,c, a Department dynamics study of heat conduction in carbon nanotube (CNT)/polyethylene (PE) composites. Particular across the CNT/polyethylene interfaces ($1 Ã? 10Ã?7 m2 K WÃ?1 ) and a moder- ate but non

Elliott, James

488

Label-free single-molecule detection of DNA-hybridization kinetics with a carbon nanotube  

E-Print Network [OSTI]

Label-free single-molecule detection of DNA- hybridization kinetics with a carbon nanotube field , Colin Nuckolls2 and Kenneth L. Shepard1 * Single-molecule measurements of biomolecules can provide systems with fast dynamics. Here, we report the detection of DNA hybridization at the single-molecule

Hone, James

489

Global compilation of Carbon-13 measurements  

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

compilation of Carbon-13 measurements during 1990-2005 in dissolved inorganic carbon (δ13C_DIC) compilation of Carbon-13 measurements during 1990-2005 in dissolved inorganic carbon (δ13C_DIC) A. Schmittner1, N. Gruber2, A. C. Mix1, R. M. Key3, A. Tagliabue4, and T. K. Westberry5 1College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, Oregon, USA 2Institute of Biogeochemistry and Pollutant Dynamics, ETH Zürich, Zürich, Switzerland 3Department of Geosciences, Princeton University, Princeton, New Jersey, USA 4School of Environmental Sciences, University of Liverpool, Liverpool, UK 5Department of Botany and Plant Pathology, Oregon State University, Corvallis, Oregon, USA data Data and Documentation Files The primary data source for the δ13C_DIC measurements is the Web Accessible Visualization and Extraction System (W.A.V.E.S) at the Carbon Dioxide Information Analysis Center (CDIAC). On 27 August 2010 we extracted data from two databases within CDIAC: First, from the Global Data Analysis Project GLODAP (Key et al., 2004) and second, from the Carbon Dioxide in the Atlantic Ocean (CARINA) data synthesis project mainly from WOCE and CLIVAR expeditions. The δ13C_DIC data on file at CDIAC have not been quality controlled. In the GLODAP database, some cruises (for example, 316N145_5 and INDIGO_123) had obvious bad data, and these were excluded from our compilation. From the remaining 31 GLODAP expeditions, we removed bottle numbers > 70 from seven cruises in order to exclude large Volume (LV) samples, many of which had large negative biases. From the CARINA database cruise 64TR19900417 was excluded due to obvious bad data, leaving 18 cruises. The remaining combined GLODAP and CARINA database contains 17,989 δ13C_DIC data for the time period from 1990-2005 from all oceans and all depths. These data were supplemented by 632 measurements from 1990 to 1998 made at Charles (Dave) Keeling's laboratory at Scripps Institution of Oceanography, described by Gruber et al. (1999), and by one transect (50 data points) from the northeast Pacific measured in Alan Mix's laboratory at Oregon State University, published along with nutrient data by Ortiz et al. (2000). The Keeling dataset is also available at CDIAC (http://cdiac.ornl.gov/ftp/oceans/keeling.data/), although here we used one single data file provided by N. Gruber. We do not use measurements prior to 1990 (such as all GEOSECS and TTO data). Due to unresolved intercalibration issues between laboratories the accuracy is currently estimated to be 0.1-0.2‰ (A. McNichol, personal communication, 2012). The combined data set contains a total of 18,670 δ13C_DIC measurements.

490

Shallow Carbon Sequestration Demonstration Project  

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

Shallow Carbon SequeStration Shallow Carbon SequeStration DemonStration ProjeCt Background The Shallow Carbon Sequestration Pilot Demonstration Project is a cooperative effort involving City Utilities of Springfield (CU); Missouri Department of Natural Resources (MDNR); Missouri State University (MSU); Missouri University of Science & Technology (MS&T); AmerenUE; Aquila, Inc.; Associated Electric Cooperative, Inc.; Empire District Electric Company; and Kansas City Power & Light. The purpose of this project is to assess the feasibility of carbon sequestration at Missouri power plant sites. The six electric utilities involved in the project account for approximately 90 percent of the electric generating capacity in Missouri. Description The pilot demonstration will evaluate the feasibility of utilizing the Lamotte and

491

Carbon Capture & Sequestration Technologies  

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

Laboratory Laboratory Battelle Memorial Institute CARBON CAPTURE & SEQUESTRATION TECHNOLOGIES J. Edmonds, J.J. Dooley, and S.H. Kim Battelle Pacific Northwest National Laboratory Battelle Memorial Institute Pacific Northwest National Laboratory Battelle Memorial Institute THE ROADMAP * Greenhouse gas emissions may not control themselves. * Climate policy may happen.--There are smart and dumb ways to proceed. The smart ways involve getting both the policy and the technology right--the GTSP. * There are no silver bullets--Expanding the set of options to include carbon capture and sequestration can help limit the cost of any ceiling on CO 2 concentrations. * Managing greenhouse emissions means managing carbon. * Carbon can be captured, transported, and sequestered in many ways.

492

Industrial Carbon Management Initiative (ICMI)  

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

Initiative (ICMI) Background The ICMI project is part of a larger program called Carbon Capture Simulation and Storage Initiative (C2S2I). The C2S2I has a goal of...

493

Carbon nanotubes in new materials  

Science Journals Connector (OSTI)

Studies of materials consisting of carbon nanotubes or containing them have been analyzed and generalized. Classification of these materials is proposed, their general features and main types are considered, and individual examples are presented. The bibliography includes 372 references.

Eduard G Rakov

2013-01-01T23:59:59.000Z

494

Reducing carbon dioxide to products  

DOE Patents [OSTI]

A method reducing carbon dioxide to one or more products may include steps (A) to (C). Step (A) may bubble said carbon dioxide into a solution of an electrolyte and a catalyst in a divided electrochemical cell. The divided electrochemical cell may include an anode in a first cell compartment and a cathode in a second cell compartment. The cathode may reduce said carbon dioxide into said products. Step (B) may adjust one or more of (a) a cathode material, (b) a surface morphology of said cathode, (c) said electrolyte, (d) a manner in which said carbon dioxide is bubbled, (e), a pH level of said solution, and (f) an electrical potential of said divided electrochemical cell, to vary at least one of (i) which of said products is produced and (ii) a faradaic yield of said products. Step (C) may separate said products from said solution.

Cole, Emily Barton; Sivasankar, Narayanappa; Parajuli, Rishi; Keets, Kate A

2014-09-30T23:59:59.000Z

495

Carbon-Neutral Energy Sources  

Science Journals Connector (OSTI)

Among the main approaches to decarbonizing global economy, the switching to carbon-neutral energy sources such as nuclear and renewables (solar, wind, biomass, etc.) is mentioned most often. Nuclear energy is ...

Nazim Muradov

2014-01-01T23:59:59.000Z

496

Increasing carbon nanotube forest density  

E-Print Network [OSTI]

The outstanding mechanical, electrical, thermal, and morphological properties of individual carbon nanotubes (CNTs) open up exciting potential applications in a wide range of fields. One such application is replacing the ...

McCarthy, Alexander P

2014-01-01T23:59:59.000Z

497

Emerging Applications of Carbon Nanotubes  

E-Print Network [OSTI]

On the basis of their unique electrical and mechanical properties, carbon nanotubes (CNTs) have attracted great attention in recent years. A diverse array of methods has been developed to modify CNTs and to assemble them ...

Schnorr, Jan Markus

498

Carbon-assisted flyer plates  

DOE Patents [OSTI]

A laser driven flyer plate is described utilizing an optical fiber connected to a laser. The end of the optical fiber has a layer of carbon and a metal layer deposited onto it. The carbon layer provides the laser induced plasma which is superior to the plasma produced from most metals. The carbon layer plasma is capable of providing a flatter flyer plate, converting more of the laser energy to driving plasma, promoting a higher flyer plate acceleration, and providing a more uniform pulse behind the plate. In another embodiment, the laser is in optical communication with a substrate onto which a layer of carbon and a layer of metal have been deposited. 2 figures.

Stahl, D.B.; Paisley, D.L.

1994-04-12T23:59:59.000Z

499

Non-carbon induction furnace  

DOE Patents [OSTI]

The present invention is directed to an induction furnace for melting and casting highly pure metals and alloys such as uranium and uranium alloys in such a manner as to minimize contamination of the melt by carbon derived from the materials and the environment within the furnace. The subject furnace is constructed of non-carbon materials and is housed within a conventional vacuum chamber. The furnace comprises a ceramic oxide crucible for holding the charge of metal or alloys. The heating of the crucible is achieved by a plasma-sprayed tungsten susceptor surrounding the crucible which, in turn, is heated by an rf induction coil separated from the susceptor by a cylinder of inorganic insulation. The furnace of the present invention is capable of being rapidly cycled from ambient temperatures to about 1650/sup 0/C for effectively melting uranium and uranium alloys without the attendant carbon contamination problems previously encountered when using carbon-bearing furnace materials.

Holcombe, C.E.; Masters, D.R.; Pfeiler, W.A.

1984-01-06T23:59:59.000Z

500

Carbon Sequestration in Agroforestry Systems  

Science Journals Connector (OSTI)

Agroforestry systems have great potential as carbon (C) sinks, through C sequestration both above- and belowground. The C-sequestration potentials of tropical agroforestry systems are highly ... caused by (i) the...

Alain Atangana; Damase Khasa; Scott Chang; Ann Degrande

2014-01-01T23:59:59.000Z