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Note: This page contains sample records for the topic "global biogeochemical dynamics" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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1

GlobalBiogeochemicalCycles RESEARCH ARTICLE  

E-Print Network [OSTI]

. Zhang (2014), Global dry deposition of nitrogen dioxide and sulfur dioxide inferred from space Accepted article online 3 SEP 2014 Global dry deposition of nitrogen dioxide and sulfur dioxide inferred contributes on average 9­36% and as much as 85% of total NOy dry deposition. 1. Introduction Nitrogen dioxide

Martin, Randall

2

GLOBAL BIOGEOCHEMICAL CYCLES, VOL. ???, XXXX, DOI:10.1029/, Global Dry Deposition of Nitrogen Dioxide and1  

E-Print Network [OSTI]

-DERIVED NO2 AND SO2 DRY DEPOSITION 1. Introduction Nitrogen dioxide (NO2) and sulfur dioxide (SO2) haveGLOBAL BIOGEOCHEMICAL CYCLES, VOL. ???, XXXX, DOI:10.1029/, Global Dry Deposition of Nitrogen Dioxide and1 Sulfur Dioxide Inferred from Space-Based2 Measurements3 C. R. Nowlan, 1,2 R. V. Martin, 1,2 S

Martin, Randall

3

A dynamic organic soil biogeochemical model for simulating the effects of wildfire on soil environmental  

E-Print Network [OSTI]

of surface energy balance [Liu et al., 2005], soil thermal and hydrological regimes [MacKay, 1995; Burn, 1998A dynamic organic soil biogeochemical model for simulating the effects of wildfire on soil not comprehensively considered how interactions among fire disturbance, soil environmental conditions

Wagner, Diane

4

in press, Global Biogeochemical Cycles, April 18, 2007 Carbon dioxide and oxygen fluxes in the Southern Ocean  

E-Print Network [OSTI]

found to affect oxygen fluxes. We find that ENSO also plays an important role in generating interannualin press, Global Biogeochemical Cycles, April 18, 2007 Carbon dioxide and oxygen fluxes College, London, UK Abstract. We analyze the variability of air-sea fluxes of carbon dioxide and oxygen

Marshall, John

5

3, 13131354, 2006 biogeochemical  

E-Print Network [OSTI]

BGD 3, 1313≠1354, 2006 Marine biogeochemical cycling in an Earth System Model A. Ridgwell et al Marine geochemical data assimilation in an efficient Earth System Model of global biogeochemical cycling biogeochemical cycling in an Earth System Model A. Ridgwell et al. Title Page Abstract Introduction Conclusions

Paris-Sud XI, Universitť de

6

Anthropogenic and Climate Influences on Biogeochemical Dynamics and Molecular-Level Speciation of Soil Sulfur  

SciTech Connect (OSTI)

The soil environment is a primary component of the global biogeochemical sulfur (S) cycle, acting as a source and sink of various S species and mediating oxidation state changes. However, ecological significance of the various S forms and the impacts of human intervention and climate on the amount and structural composition of these compounds are still poorly understood. We investigated the long-term influences of anthropogenically mediated transitions from natural to managed ecosystems on molecular-level speciation, biogeochemical dynamics, and the apparent temperature sensitivity of S moieties in temperate, subtropical, and tropical environments with mean annual temperature (MAT) ranging from 5C to 21C, using elemental analysis and X-ray absorption near-edge structure (XANES) spectroscopy. Land-use and land-cover changes led to the depletion of total soil S in all three ecoregions over a period of up to 103 years. The largest decline occurred from tropical forest agroecosystems (67% Kakamega and 76% Nandi, Kenya), compared to losses from temperate (36% at Lethbridge, Canada, and 40% at Pendleton, USA) and subtropical (48% at South Africa) grassland agroecosystems. The total S losses correlated significantly with MAT. Anthropogenic interventions profoundly altered the molecular-level composition and resulted in an apparent shift in oxidation states of organic S from native ecosystems composed primarily of S moieties in intermediate and highly reduced oxidation states toward managed agroecosystems dominated by organic S rich in strongly oxidized functionalities. The most prominent change occurred in thiols and sulfides, the proportion of which decreased by 46% (Lethbridge) and 57% (Pendleton) in temperate agroecosystems, by 46% in subtropical agroecosystems, and by 79% (Nandi) and 81% (Kakamega) in tropical agroecosystems. The proportion of organic S directly linked to O increased by 81%, 168%, 40%, 92%, and 85%, respectively. Among the various organic S functionalities, thiols and sulfides seem to have higher apparent temperature sensitivity, and thus these organic S moieties may become prone to losses due to land-use changes, even from the cooler regions of the world if MAT of these regions rise in the future.

Solomon, D.; Lehmann, J; Kinyangi, J; Pell, A; Theis , J; Riha , S; Ngoze, S; Amelung, W; du Preez, C; et. al.

2009-01-01T23:59:59.000Z

7

Global Dynamics in Galactic Triaxial Systems I  

E-Print Network [OSTI]

In this paper we present a theoretical analysis of the global dynamics in a triaxial galactic system using a 3D integrable Hamiltonian as a simple representation. We include a thorough discussion on the effect of adding a generic non--integrable perturbation to the global dynamics of the system. We adopt the triaxial Stackel Hamiltonian as the integrable model and compute its resonance structure in order to understand its global dynamics when a perturbation is introduced. Also do we take profit of this example in order to provide a theoretical discussion about diffussive processes taking place in phase space.

Pablo M. Cincotta; Claudia M. Giordano; Josefa Perez; .

2006-04-21T23:59:59.000Z

8

Environmental Data from the ORNL Distributed Active Archive Center (DAAC) for Biogeochemical Dynamics  

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

ē\tThe Prototype Validation Exercise (PROVE) The ORNL DAAC also provides access to data for many regional and global projects and to a model archive. (Specialized Interface)(Registration Required)

9

A Generic Biogeochemical Module for Earth System Models: Next Generation BioGeoChemical Module (NGBGC), Version 1.0  

SciTech Connect (OSTI)

Physical and biogeochemical processes regulate soil carbon dynamics and CO2 flux to and from atmosphere, influencing global climate changes. Integration of these processes into earth system models (e.g., community land models (CLM)), however, currently faces three major challenges: 1) extensive efforts are required to modify modeling structures and to rewrite computer programs to incorporate new or updated processes as new knowledge is being generated, 2) computational cost is prohibitively expensive to simulate biogeochemical processes in land models due to large variations in the rates of biogeochemical processes, and 3) various mathematical representations of biogeochemical processes exist to incorporate different aspects of fundamental mechanisms, but systematic evaluation of the different mathematical representations is difficult, if not possible. To address these challenges, we propose a new computational framework to easily incorporate physical and biogeochemical processes into land models. The new framework consists of a new biogeochemical module with a generic algorithm and reaction database so that new and updated processes can be incorporated into land models without the need to manually set up the ordinary differential equations to be solved numerically. The reaction database consists of processes of nutrient flow through the terrestrial ecosystems in plants, litter and soil. This framework facilitates effective comparison studies of biogeochemical cycles in an ecosystem using different conceptual models under the same land modeling framework. The approach was first implemented in CLM and benchmarked against simulations from the original CLM-CN code. A case study was then provided to demonstrate the advantages of using the new approach to incorporate a phosphorus cycle into the CLM model. To our knowledge, the phosphorus-incorporated CLM is a new model that can be used to simulate phosphorus limitation on the productivity of terrestrial ecosystems.

Fang, Yilin; Huang, Maoyi; Liu, Chongxuan; Li, Hongyi; Leung, Lai-Yung R.

2013-11-13T23:59:59.000Z

10

Spatial and temporal dynamics of biogeochemical processes in the Fraser River, Canada : a coupled organic-inorganic perspective  

E-Print Network [OSTI]

The great geologic and climatic diversity of the Fraser River basin in southwestern Canada render it an excellent location for understanding biogeochemical cycling of sediments and terrigenous organic carbon in a relatively ...

Voss, Britta Marie

2014-01-01T23:59:59.000Z

11

Global Dynamics of Zooplankton and Harmful Algae in Flowing Habitats  

E-Print Network [OSTI]

Global Dynamics of Zooplankton and Harmful Algae in Flowing Habitats Sze-Bi Hsu Feng-Bin Wang Xiao from the dynamics of harmful algae and zooplankton in flowing- water habitats where a main channel. For the system modeling the dynamics of algae and their toxin that contains little limiting nutrient, we

Hsu, Sze-Bi

12

Carbon and nitrogen dynamics in bioenergy ecosystems: 2. Potential greenhouse gas emissions and global  

E-Print Network [OSTI]

Carbon and nitrogen dynamics in bioenergy ecosystems: 2. Potential greenhouse gas emissions) from bioenergy ecosystems with a biogeochemical model AgTEM, assuming maize (Zea mays L.), switchgrass ha√?1 yr√?1 . Among all three bioenergy crops, Miscanthus is the most biofuel productive and the least

Zhuang, Qianlai

13

Dynamics of a global string with large Higgs boson mass  

E-Print Network [OSTI]

We consider a self-gravitating string generated by a global vortex solution in general relativity. We investigate the Einstein and field equations of a global vortex in the region of its central line and at a distance from the centre of the order of the inverse of its Higgs boson mass. By combining the two we establish by a limiting process of large Higgs mass the dynamics of a self-gravitating global string. Under our assumptions the presence of gravitation restricts the world sheet of the global string to be totally geodesic.

C. Charmousis; B. Boisseau; B. Linet

1998-01-12T23:59:59.000Z

14

Global dynamics of coupled standard maps  

E-Print Network [OSTI]

Understanding the dynamics of multi--dimensional conservative dynamical systems (Hamiltonian flows or symplectic maps) is a fundamental issue of non-linear science. The Generalized ALignment Index (GALI), which was recently introduced and applied successfully for the distinction between regular and chaotic motion in Hamiltonian systems \\cite{sk:6}, is an ideal tool for this purpose. In the present paper we make a first step towards the dynamical study of multi--dimensional maps, by obtaining some interesting results for a 4--dimensional (4D) symplectic map consisting of N=2 coupled standard maps \\cite{Kan:1}. In particular, using the new GALI$_3$ and GALI$_4$ indices, we compute the percentages of regular and chaotic motion of the map equally reliably but much faster than previously used indices, like GALI$_2$ (known in the literature as SALI).

T. Manos; Ch. Skokos; T. Bountis

2008-01-25T23:59:59.000Z

15

Integrated Biogeochemical and Hydrologic Processes Driving Arsenic...  

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

Biogeochemical and Hydrologic Processes Driving Arsenic Release from Shallow Sediments to Groundwaters of the Mekong Integrated Biogeochemical and Hydrologic Processes Driving...

16

Global attractors and extinction dynamics of cyclically competing species  

E-Print Network [OSTI]

Transitions to absorbing states are of fundamental importance in non-equilibrium physics as well as ecology. In ecology, absorbing states correspond to the extinction of species. We here study the spatial population dynamics of three cyclically interacting species. The interaction scheme comprises both direct competition between species as in the cyclic Lotka-Volterra model, and separated selection and reproduction processes as in the May-Leonard model. We show that the dynamic processes leading to the transient maintenance of biodiversity are closely linked to attractors of the nonlinear dynamics for the overall species' concentrations. The characteristics of these global attractors change qualitatively at certain threshold values of the mobility, and depend on the relative strength of the different types of competition between species. They give information about the scaling of extinction times with the system size and thereby the stability of biodiversity. We define an effective free energy as the negative...

Rulands, Steffen; Frey, Erwin

2013-01-01T23:59:59.000Z

17

Persistent global proton aurora caused by high solar wind dynamic pressure  

E-Print Network [OSTI]

Persistent global proton aurora caused by high solar wind dynamic pressure K. M. Laundal1 and N] Global images of the proton aurora taken with the SI-12 camera onboard the IMAGE satellite reveal a very direct relationship between the solar wind dynamic pressure and the intensity of the global proton aurora

Bergen, Universitetet i

18

Transitional solar dynamics, cosmic rays and global warming  

E-Print Network [OSTI]

Solar activity is studied using a cluster analysis of the time-fluctuations of the sunspot number. It is shown that in an Historic period the high activity components of the solar cycles exhibit strong clustering, whereas in a Modern period (last seven solar cycles: 1933-2007) they exhibit a white-noise (non-)clustering behavior. Using this observation it is shown that in the Historic period, emergence of the sunspots in the solar photosphere was strongly dominated by turbulent photospheric convection. In the Modern period, this domination was broken by a new more active dynamics of the inner layers of the convection zone. Then, it is shown that the dramatic change of the sun dynamics at the transitional period (between the Historic and Modern periods, solar cycle 1933-1944yy) had a clear detectable impact on Earth climate. A scenario of a chain of transitions in the solar convective zone is suggested in order to explain the observations, and a forecast for the global warming is suggested on the basis of this scenario. A relation between the recent transitions and solar long-period chaotic dynamics has been found. Contribution of the galactic turbulence (due to galactic cosmic rays) has been discussed. These results are also considered in a content of chaotic climate dynamics at millennial timescales.

A. Bershadskii

2009-04-12T23:59:59.000Z

19

The global nature of solar cycle variations of the solar wind dynamic pressure  

E-Print Network [OSTI]

1 The global nature of solar cycle variations of the solar wind dynamic pressure John Richardson: SOLAR WIND DYNAMIC PRESSURE #12;2 Abstract. The solar wind dynamic pressure measured near the ecliptic varies over the solar cycle. A major unanswered question has been whether this variation is a global

Richardson, John

20

Proceedings Dynamics of Fluids in Fractured Rocks. LBNL-42718, Berkeley, CA February 1999 Critical Biogeochemical Parameters Used for In Situ Bioremediation of Solvents in  

E-Print Network [OSTI]

Proceedings Dynamics of Fluids in Fractured Rocks. LBNL-42718, Berkeley, CA February 1999 169 in monitoring wells near the injection point. #12;Proceedings Dynamics of Fluids in Fractured Rocks. LBNL-42718

Hazen, Terry

Note: This page contains sample records for the topic "global biogeochemical 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

Optimization and sensitivity of a global biogeochemistry ocean model using combined in situ DIC, alkalinity, and phosphate data  

E-Print Network [OSTI]

anthropogenic CO 2 in the Pacific Ocean, Global Biogeochem.dissolution in the Pacific Ocean, Global Biogeochem. Cycles,PO 4 ] in the equatorial Pacific Ocean by approximately 70%.

Kwon, Eun Young; Primeau, Francois

2008-01-01T23:59:59.000Z

22

Global Biogeochemical Cycles Global biogeochemical cycles can be defined as any of the natural circulation pathways  

E-Print Network [OSTI]

reservoirs, and storage in the geosphere (Fig. 1). CO2 in the Atmosphere. The primary forces that drive the long-term drifting of climate from extremes of ice-free poles to extremes of cold with massive of the industrial age, to 380 ppm today. New evidence suggests that c

Winguth, Arne

23

Global Computing in a Dynamic Network of Tuple Spaces  

E-Print Network [OSTI]

and management of global computational environments and their application. On the linguistic side, we believe operations (like asynchronous remote communications). On the foundational side, the demand, security, privacy, failures, etc. in a setting where demands and guarantees can be very different

Gorla, Daniele

24

A dynamic origin for the global asymmetry of lunar mare Shijie Zhong aY  

E-Print Network [OSTI]

basalts. Rare earth element (REE) distributions in the mare basalts are complementary to those in anorA dynamic origin for the global asymmetry of lunar mare basalts Shijie Zhong aY *, E.M. Parmentier b , Maria T. Zuber a a Department of Earth, Atmospheric and Planetary Sciences, M.I.T., Cambridge

Zuber, Maria

25

Characterization of Coupled Hydrologic-Biogeochemical Processes Using Geophysical Data  

SciTech Connect (OSTI)

Biogeochemical and hydrological processes are naturally coupled and variable over a wide range of spatial and temporal scales. Many remediation approaches also induce dynamic transformations in natural systems, such as the generation of gases, precipitates and biofilms. These dynamic transformations are often coupled and can reduce the hydraulic conductivity of the geologic materials, making it difficult to introduce amendments or to perform targeted remediation. Because it is difficult to predict these transformations, our ability to develop effective and sustainable remediation conditions at contaminated sites is often limited. Further complicating the problem is the inability to collect the necessary measurements at a high enough spatial resolution yet over a large enough volume for understanding field-scale transformations.

Hubbard, Susan

2005-06-01T23:59:59.000Z

26

Geophysical Monitoring of Hydrological and Biogeochemical  

E-Print Network [OSTI]

explored the use of geophysical approaches for monitoring the spatiotemporal distribution of hydrological and biogeochemical transformations associated with a Cr(VI) bioremediation experiment performed at Hanford, WA. We: the spatial distribution of injected electron donor; the evolution of gas bubbles; variations in total

Hubbard, Susan

27

DEVELOPMENT, ASSESSMENT, AND COMMERCIALIZATION OF A BIOGEOCHEMICAL  

E-Print Network [OSTI]

DEVELOPMENT, ASSESSMENT, AND COMMERCIALIZATION OF A BIOGEOCHEMICAL PROFILING FLOAT FOR CALIBRATION to maximize data quality within power, data, and cost constraints. · Field-test to examine robustness-Goddard). The technical work is being overseen and coordinated by the University of Maine. All the manufacturers

Boss, Emmanuel S.

28

Marine methane cycle simulations for the period of early global warming  

E-Print Network [OSTI]

aspects of atmospheric methane, Global Biogeochem. Cycles 2,Budeus, Fate of vent derived methane in seawater above theHanfland, Pathways of methane in seawater: Plume spreading

Elliott, S.

2011-01-01T23:59:59.000Z

29

Global  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky LearningGet Assistance GetGiant ProteaseGlass andT.2 -Global

30

Global terrestrial biogeochemistry: Perturbations, interactions, and time scales  

SciTech Connect (OSTI)

Global biogeochemical processes are being perturbed by human activity, principally that which is associated with industrial activity and expansion of urban and agricultural complexes. Perturbations have manifested themselves at least since the beginning of the 19th Century, and include emissions of CO{sub 2} and other pollutants from fossil fuel combustion, agricultural emissions of reactive nitrogen, and direct disruption of ecosystem function through land conversion. These perturbations yield local impacts, but there are also global consequences that are the sum of local-scale influences. Several approaches to understanding the global-scale implications of chemical perturbations to the Earth system are discussed. The lifetime of anthropogenic CO{sub 2} in the atmosphere is an important concept for understanding the current and future commitment to an altered atmospheric heat budget. The importance of the terrestrial biogeochemistry relative to the lifetime of excess CO{sub 2} is demonstrated using dynamic, aggregated models of the global carbon cycle.

Braswell, B.H. Jr.

1996-12-01T23:59:59.000Z

31

Meridional circulation dynamics from 3D MHD global simulations of solar convection  

E-Print Network [OSTI]

The form of the solar meridional circulation is a very important ingredient for mean field flux transport dynamo models. Yet a shroud of mystery still surrounds this large-scale flow, given that its measurement using current helioseismic techniques is challenging. In this work we use results from 3D global simulations of solar convection to infer the dynamical behavior of the established meridional circulation. We make a direct comparison between the meridional circulation that arises in these simulations and the latest observations. Based on our results we argue that there should be an equatorward flow at the base of the convection zone at mid latitudes, below the current maximum depth helioseismic measures can probe (0.75 R). We also provide physical arguments to justify this behaviour. The simulations indicate that the meridional circulation undergoes substantial changes in morphology as the magnetic cycle unfolds. We close by discussing the importance of these dynamical changes for current methods of obse...

Passos, Dario; Miesch, Mark

2015-01-01T23:59:59.000Z

32

Multiscale Subsurface Biogeochemical Modeling Project at NERSC  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recovery challengeMultiscale Subsurface Biogeochemical Modeling Multiscale Subsurface

33

INTRODUCTION Soil is an important contributor to global biogeochemical  

E-Print Network [OSTI]

by organisms, and eventually leached into rivers and groundwater or released back into the atmosphere. Mass as condensation nuclei for water, and the solid particles can undergo repeated cycles of hydration and dehydration

Derry, Louis A.

34

The ecology of dust: local- to global-scale perspectives  

SciTech Connect (OSTI)

Emission and redistribution of dust due to wind erosion in drylands drives major biogeochemical dynamics and provides important aeolian environmental connectivity at scales from individual plants up to the global scale. Yet, perhaps because most relevant research on aeolian processes has been presented in a geosciences rather than ecological context, most ecological studies do not explicitly consider dust-driven processes. To bridge this disciplinary gap, we provide a general overview of the ecological importance of dust, examine complex interactions between wind erosion and ecosystem dynamics from the plant-interspace scale to regional and global scales, and highlight specific examples of how disturbance affects these interactions and their consequences. Changes in climate and intensification of land use will both likely lead to increased dust production. To address these challenges, environmental scientists, land managers and policy makers need to more explicitly consider dust in resource management decisions.

Whicker, Jeffrey J [Los Alamos National Laboratory; Field, Jason P [UA; Belnap, Jayne [NON LANL; Breshears, David D [UA; Neff, Jason [CU; Okin, Gregory S [UCLA; Painter, Thomas H [UNIV OF ARIZONA; Ravi, Sujith [UNIV OF ARIZONA; Reheis, Marith C [UCLA; Reynolds, Richard L [NON LANL

2009-01-01T23:59:59.000Z

35

Bifurcation and Global Dynamical Behavior of the $f(T)$ Theory  

E-Print Network [OSTI]

Usually, in order to investigate the evolution of a theory, one may find the critical points of the system and then perform perturbations around these critical points to see whether they are stable or not. This local method is very useful when the initial values of the dynamical variables are not far away from the critical points. Essentially, the nonlinear effects are totally neglected in such kind of approach. Therefore, one can not tell whether the dynamical system will evolute to the stable critical points or not when the initial values of the variables do not close enough to these critical points. Furthermore, when there are two or more stable critical points in the system, local analysis can not provide the informations that which one the system will finally evolute to. In this paper, we have further developed the nullcline method to study the bifurcation phenomenon and global dynamical behaviour of the $f(T)$ theory. We overcome the shortcoming of local analysis. And it is very clear to see the evolution of the system under any initial conditions.

Chao-Jun Feng; Xin-Zhou Li; Li-Yan Liu

2014-03-18T23:59:59.000Z

36

applied coastal biogeochemical: Topics by E-print Network  

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

Summary: ??The homogenization and replacement of the overburden after mining disrupts rock weathering, soil formation processes, and biogeochemical cycling of elements. The...

37

COLLABORATIVE RESEARCH: CONTINUOUS DYNAMIC GRID ADAPTATION IN A GLOBAL ATMOSPHERIC MODEL: APPLICATION AND REFINEMENT  

SciTech Connect (OSTI)

This project had goals of advancing the performance capabilities of the numerical general circulation model EULAG and using it to produce a fully operational atmospheric global climate model (AGCM) that can employ either static or dynamic grid stretching for targeted phenomena. The resulting AGCM combined EULAG√ʬ?¬?s advanced dynamics core with the √ʬ?¬?physics√ʬ?¬Ě of the NCAR Community Atmospheric Model (CAM). Effort discussed below shows how we improved model performance and tested both EULAG and the coupled CAM-EULAG in several ways to demonstrate the grid stretching and ability to simulate very well a wide range of scales, that is, multi-scale capability. We leveraged our effort through interaction with an international EULAG community that has collectively developed new features and applications of EULAG, which we exploited for our own work summarized here. Overall, the work contributed to over 40 peer- reviewed publications and over 70 conference/workshop/seminar presentations, many of them invited.

Prusa, Joseph

2012-05-08T23:59:59.000Z

38

Tropical Pacific nutrient dynamics in the modern and pleistocene ocean : insights from the nitrogen isotope system  

E-Print Network [OSTI]

eastern tropical North Pacific Ocean, Mar. Chem. , 3, 271Ėeastern tropical South Pacific Ocean, Mar. Chem. , 16, 277Ėand N 2 fixation in the Pacific Ocean, Global Biogeochem.

Rafter, Patrick Anthony

2009-01-01T23:59:59.000Z

39

Probing nuclear dynamics in jet production with a global event shape  

E-Print Network [OSTI]

We study single jet production in electron-nucleus collisions e^- + N_A -> J + X, using the 1-jettiness (\\tau_1) global event shape. It inclusively quantifies the pattern of radiation in the final state, gives enhanced sensitivity to soft radiation at wide angles from the nuclear beam and final-state jet, and facilitates the resummation of large Sudakov logarithms associated with the veto on additional jets. Through their effect on the observed pattern of radiation, 1-jettiness can be a useful probe of nuclear PDFs and power corrections from dynamical effects in the nuclear medium. This formalism allows for the standard jet shape analysis while simultaneously providing sensitivity to soft radiation at wide angles from the jet. We use a factorization framework for cross-sections differential in $\\tau_1$ and the transverse momentum (P_{J_T}) and rapidity (y) of the jet, in the region \\tau_1theoretical control over resummation, while providing enhanced sensitivity to nuclear medium effects. We give numerical results at leading twist, with resummation at the next-to-next-to-leading logarithmic (NNLL) level of accuracy, for a variety of nuclear targets. Such studies would be ideal for the EIC and the LHeC proposals for a future electron-ion collider, where a range of nuclear targets are planned.

Zhong-Bo Kang; Xiaohui Liu; Sonny Mantry; Jian-Wei Qiu

2014-07-25T23:59:59.000Z

40

Globally Distributed Engineering Teams in Computational Fluid Dynamics and in Product Development  

E-Print Network [OSTI]

, experimental research on idea generation methods used in globally distributed teams during the conceptual design phase of the product development process is presented. An experimental study simulating the global distribution of a three person Computational...

Schmidt, Susanne R.

2010-10-12T23:59:59.000Z

Note: This page contains sample records for the topic "global biogeochemical 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

COLLABORATIVE RESEARCH: CONTINUOUS DYNAMIC GRID ADAPTATION IN A GLOBAL ATMOSPHERIC MODEL: APPLICATION AND REFINEMENT  

SciTech Connect (OSTI)

This project had goals of advancing the performance capabilities of the numerical general circulation model EULAG and using it to produce a fully operational atmospheric global climate model (AGCM) that can employ either static or dynamic grid stretching for targeted phenomena. The resulting AGCM combined EULAG's advanced dynamics core with the "physics" of the NCAR Community Atmospheric Model (CAM). Effort discussed below shows how we improved model performance and tested both EULAG and the coupled CAM-EULAG in several ways to demonstrate the grid stretching and ability to simulate very well a wide range of scales, that is, multi-scale capability. We leveraged our effort through interaction with an international EULAG community that has collectively developed new features and applications of EULAG, which we exploited for our own work summarized here. Overall, the work contributed to over 40 peer-reviewed publications and over 70 conference/workshop/seminar presentations, many of them invited. 3a. EULAG Advances EULAG is a non-hydrostatic, parallel computational model for all-scale geophysical flows. EULAG's name derives from its two computational options: EULerian (flux form) or semi-LAGrangian (advective form). The model combines nonoscillatory forward-in-time (NFT) numerical algorithms with a robust elliptic Krylov solver. A signature feature of EULAG is that it is formulated in generalized time-dependent curvilinear coordinates. In particular, this enables grid adaptivity. In total, these features give EULAG novel advantages over many existing dynamical cores. For EULAG itself, numerical advances included refining boundary conditions and filters for optimizing model performance in polar regions. We also added flexibility to the model's underlying formulation, allowing it to work with the pseudo-compressible equation set of Durran in addition to EULAG's standard anelastic formulation. Work in collaboration with others also extended the demonstrated range of validity of soundproof models, showing that they are more broadly applicable than some had previously thought. Substantial testing of EULAG included application and extension of the Jablonowski-Williamson baroclinic wave test - an archetype of planetary weather - and further analysis of multi-scale interactions arising from collapse of temperature fronts in both the baroclinic wave test and simulations of the Held-Suarez idealized climate. These analyses revealed properties of atmospheric gravity waves not seen in previous work and further demonstrated the ability of EULAG to simulate realistic behavior over several orders of magnitude of length scales. Additional collaborative work enhanced capability for modeling atmospheric flows with adaptive moving meshes and demonstrated the ability of EULAG to move into petascale computing. 3b. CAM-EULAG Advances We have developed CAM-EULAG in collaboration with former project postdoc, now University of Cape Town Assistant Professor, Babatunde Abiodun. Initial study documented good model performance in aqua-planet simulations. In particular, we showed that the grid adaptivity (stretching) implemented in CAM-EULAG allows higher resolution in selected regions without causing anomalous behavior such as spurious wave reflection. We then used the stretched-grid version to analyze simulated extreme precipitation events in West Africa, comparing the precipitation and event environment with observed behavior. The model simulates fairly well the spatial scale and the interannual and intraseasonal variability of the extreme events, although its extreme precipitation intensity is weaker than observed. In addition, both observations and the simulations show possible forcing of extreme events by African easterly waves. 3c. Other Contributions Through our collaborations, we have made contributions to a wide range of outcomes. For research focused on terrestrial behavior, these have included (1) upwind schemes for gas dynamics, (2) a nonlinear perspective on the dynamics of the Madden-Julian Oscillation, (3) numerical realism of thermal co

Gutowski, William J.; Prusa, Joseph M.; Smolarkiewicz, Piotr K.

2012-05-08T23:59:59.000Z

42

Biogeochemical Processes Controlling Microbial Reductive Precipitation of Radionuclides  

SciTech Connect (OSTI)

This project is focused on elucidating the principal biogeochemical reactions that govern the concentrations, chemical speciation, and distribution of the redox sensitive contaminants uranium (U) and technetium (Tc) between the aqueous and solid phases. The research is designed to provide new insights into the under-explored areas of competing geochemical and microbiological oxidation-reduction reactions that govern the fate and transport of redox sensitive contaminants and to generate fundamental scientific understanding of the identity and stoichiometry of competing microbial reduction and geochemical oxidation reactions. These goals and objectives are met through a series of hypothesis-driven tasks that focus on (1) the use of well-characterized microorganisms and synthetic and natural mineral oxidants, (2) advanced spectroscopic and microscopic techniques to monitor redox transformations of U and Tc, and (3) the use of flow-through experiments to more closely approximate groundwater environments. The results are providing an improved understanding and predictive capability of the mechanisms that govern the redox dynamics of radionuclides in subsurface environments. For purposes of this poster, the results are divided into three sections: (1) influence of Ca on U(VI) bioreduction; (2) localization of biogenic UO{sub 2} and TcO{sub 2}; and (3) reactivity of Mn(III/IV) oxides.

Fredrickson, James K.; Brooks, Scott C.

2004-03-17T23:59:59.000Z

43

The dynamics of technology diffusion and the impacts of climate policy instruments in the decarbonisation of the global electricity sector  

E-Print Network [OSTI]

This paper presents an analysis of possible uses of climate policy instruments for the decarbonisation of the global electricity sector in a non-equilibrium economic and technology innovation-diffusion perspective. Emissions reductions occur through changes in technology and energy consumption; in this context, investment decision-making opportunities occur periodically, which energy policy can incentivise in order to transform energy systems and meet reductions targets. Energy markets are driven by innovation, dynamic costs and technology diffusion; yet, the incumbent systems optimisation methodology in energy modelling does not address these aspects nor the effectiveness of policy onto decision-making since the dynamics modelled take their source from the top-down `social-planner' assumption. This leads to an underestimation of strong technology lock-ins in cost-optimal scenarios of technology. Our approach explores the global diffusion of low carbon technology in connection to a highly disaggregated sector...

Mercure, J -F; Foley, A M; Chewpreecha, U; Pollitt, H

2013-01-01T23:59:59.000Z

44

Organic geochemistry and stable isotope constraints on Precambrian biogeochemical processes  

E-Print Network [OSTI]

Details of the biogeochemical cycles and the dominant mechanisms present in Precambrian remain heavily debated topics. The events of the Late Proterozoic onset to glaciations and what types of early life existed in the ...

Thomas, Katherine S., S.M. Massachusetts Institute of Technology

2011-01-01T23:59:59.000Z

45

Scientific Final Report: COLLABORATIVE RESEARCH: CONTINUOUS DYNAMIC GRID ADAPTATION IN A GLOBAL ATMOSPHERIC MODEL: APPLICATION AND REFINEMENT  

SciTech Connect (OSTI)

This project had goals of advancing the performance capabilities of the numerical general circulation model EULAG and using it to produce a fully operational atmospheric global climate model (AGCM) that can employ either static or dynamic grid stretching for targeted phenomena. The resulting AGCM combined EULAG's advanced dynamics core with the 'physics' of the NCAR Community Atmospheric Model (CAM). Effort discussed below shows how we improved model performance and tested both EULAG and the coupled CAM-EULAG in several ways to demonstrate the grid stretching and ability to simulate very well a wide range of scales, that is, multi-scale capability. We leveraged our effort through interaction with an international EULAG community that has collectively developed new features and applications of EULAG, which we exploited for our own work summarized here. Overall, the work contributed to over 40 peer-reviewed publications and over 70 conference/workshop/seminar presentations, many of them invited.

William J. Gutowski; Joseph M. Prusa, Piotr K. Smolarkiewicz

2012-04-09T23:59:59.000Z

46

Global patterns of nitrogen limitation: confronting two global biogeochemical models with observations  

E-Print Network [OSTI]

representations of Earth System Models have included the carbon (C) cycle (Friedlingstein et al., 2006

Templer, Pamela

47

Effects of solar UV radiation and climate change on biogeochemical cycling: Interactions and feedbacks  

SciTech Connect (OSTI)

Solar UV radiation, climate and other drivers of global change are undergoing significant changes and models forecast that these changes will continue for the remainder of this century. Here we assess the effects of solar UV radiation on biogeochemical cycles and the interactions of these effects with climate change, including feedbacks on climate. Such interactions occur in both terrestrial and aquatic ecosystems. While there is significant uncertainty in the quantification of these effects, they could accelerate the rate of atmospheric CO{sub 2} increase and subsequent climate change beyond current predictions. The effects of predicted changes in climate and solar UV radiation on carbon cycling in terrestrial and aquatic ecosystems are expected to vary significantly between regions. The balance of positive and negative effects on terrestrial carbon cycling remains uncertain, but the interactions between UV radiation and climate change are likely to contribute to decreasing sink strength in many oceanic regions. Interactions between climate and solar UV radiation will affect cycling of elements other than carbon, and so will influence the concentration of greenhouse and ozone-depleting gases. For example, increases in oxygen-deficient regions of the ocean caused by climate change are projected to enhance the emissions of nitrous oxide, an important greenhouse and ozone-depleting gas. Future changes in UV-induced transformations of aquatic and terrestrial contaminants could have both beneficial and adverse effects. Taken in total, it is clear that the future changes in UV radiation coupled with human-caused global change will have large impacts on biogeochemical cycles at local, regional and global scales.

Erickson III, David J [ORNL

2011-01-01T23:59:59.000Z

48

Modeling the Dynamics of Desakota Regions: Global - Local Nexus in the Taipei Metropolitan Area  

E-Print Network [OSTI]

Since the 1970s, Asia has experienced rapid urbanization processes, which are distinct from U.S. society, and the direction of Asian urbanization is more strongly affected by economic globalization. The desakota model, proposed by McGee and Ginsburg...

Wu, Bing-Sheng

2010-10-12T23:59:59.000Z

49

Correction of Physiologically Induced Global Off-Resonance Effects in Dynamic Echo-Planar and  

E-Print Network [OSTI]

information from the center of k-space and a navigator echo and is illustrated with dynamic scans of single oxygen level-dependant (BOLD) func- tional neuroimaging (3), which will be the primary focus of this work maps. Zero-order phase (non- evolving in time) corrections using navigator echoes (8­ 10

Glover, Gary H.

50

Global Observation of Forest and Land Cover Dynamics (GOFC-GOLD) | Open  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Power BasicsGermany: Energy Resources JumpEnergy Information Cover Dynamics

51

Response and impact of equatorial ocean dynamics and tropical instability waves in the tropical Atlantic under global warming  

E-Print Network [OSTI]

Atlantic under global warming: A regional coupled downscaling study Hyodae Seo1,2 and ShangPing Xie1. Under global warming, both global and regional models exhibit an increased (decreased) rainfall thermal stratification is suggested to be more important under global warming. The strengthened upwelling

Xie, Shang-Ping

52

Global protein phosphorylation dynamics during deoxynivalenol-induced ribotoxic stress response in the macrophage  

SciTech Connect (OSTI)

Deoxynivalenol (DON), a trichothecene mycotoxin produced by Fusarium that commonly contaminates food, is capable of activating mononuclear phagocytes of the innate immune system via a process termed the ribotoxic stress response (RSR). To encapture global signaling events mediating RSR, we quantified the early temporal (? 30 min) phosphoproteome changes that occurred in RAW 264.7 murine macrophage during exposure to a toxicologically relevant concentration of DON (250 ng/mL). Large-scale phosphoproteomic analysis employing stable isotope labeling of amino acids in cell culture (SILAC) in conjunction with titanium dioxide chromatography revealed that DON significantly upregulated or downregulated phosphorylation of 188 proteins at both known and yet-to-be functionally characterized phosphosites. DON-induced RSR is extremely complex and goes far beyond its prior known capacity to inhibit translation and activate MAPKs. Transcriptional regulation was the main target during early DON-induced RSR, covering over 20% of the altered phosphoproteins as indicated by Gene Ontology annotation and including transcription factors/cofactors and epigenetic modulators. Other biological processes impacted included cell cycle, RNA processing, translation, ribosome biogenesis, monocyte differentiation and cytoskeleton organization. Some of these processes could be mediated by signaling networks involving MAPK-, NF?B-, AKT- and AMPK-linked pathways. Fuzzy c-means clustering revealed that DON-regulated phosphosites could be discretely classified with regard to the kinetics of phosphorylation/dephosphorylation. The cellular response networks identified provide a template for further exploration of the mechanisms of trichothecenemycotoxins and other ribotoxins, and ultimately, could contribute to improved mechanism-based human health risk assessment. - Highlights: ? Mycotoxin deoxynivalenol (DON) induces immunotoxicity via ribotoxic stress response. ? SILAC phosphoproteomics using TiO{sub 2} was applied to DON-treated RAW 264.7 cells. ? DON induces extensive protein phosphorylation changes involving 188 phosphoproteins. ? The main target of early DON-induced RSR is transcriptional regulation. ? Early DON-induced RSR is mediated by MAPK-, NF?B-, AKT- and AMPK-linked pathways.

Pan, Xiao [Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824 (United States); Center for Integrative Toxicology, Michigan State University, East Lansing, MI 48824 (United States); Whitten, Douglas A. [Research Technology Support Facility, Proteomics Core, Michigan State University, East Lansing, MI 48824 (United States); Wu, Ming [Department of Computer Science and Engineering, Michigan State University, East Lansing, MI 48824 (United States); Chan, Christina [Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824 (United States); Department of Computer Science and Engineering, Michigan State University, East Lansing, MI 48824 (United States); Wilkerson, Curtis G. [Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824 (United States); Research Technology Support Facility, Proteomics Core, Michigan State University, East Lansing, MI 48824 (United States); Pestka, James J., E-mail: pestka@msu.edu [Center for Integrative Toxicology, Michigan State University, East Lansing, MI 48824 (United States); Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI 48824 (United States); Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824 (United States)

2013-04-15T23:59:59.000Z

53

BIOGEOCHEMICAL GRADIENTS AS A FRAMEWORK FOR UNDERSTANDING WASTE SITE EVOLUTION  

SciTech Connect (OSTI)

The migration of biogeochemical gradients is a useful framework for understanding the evolution of biogeochemical conditions in groundwater at waste sites contaminated with metals and radionuclides. This understanding is critical to selecting sustainable remedies and evaluating sites for monitored natural attenuation, because most attenuation mechanisms are sensitive to geochemical conditions such as pH and redox potential. Knowledge of how gradients in these parameters evolve provides insights into the behavior of contaminants with time and guides characterization, remedy selection, and monitoring efforts. An example is a seepage basin site at the Savannah River Site in South Carolina where low-level acidic waste has seeped into groundwater. The remediation of this site relies, in part, on restoring the natural pH of the aquifer by injecting alkaline solutions. The remediation will continue until the pH up-flow of the treatment zone increases to an acceptable value. The time required to achieve this objective depends on the time it takes the trailing pH gradient, the gradient separating the plume from influxing natural groundwater, to reach the treatment zone. Predictions of this length of time will strongly influence long-term remedial decisions.

Denham, M; Karen Vangelas, K

2008-10-17T23:59:59.000Z

54

Subsurface Biogeochemical Research FY11 Second Quarter Performance Measure  

SciTech Connect (OSTI)

The Subsurface Biogeochemical Research (SBR) Long Term Measure for 2011 under the Performance Assessment Rating Tool (PART) measure is to "Refine subsurface transport models by developing computational methods to link important processes impacting contaminant transport at smaller scales to the field scale." The second quarter performance measure is to "Provide a report on computational methods linking genome-enabled understanding of microbial metabolism with reactive transport models to describe processes impacting contaminant transport in the subsurface." Microorganisms such as bacteria are by definition small (typically on the order of a micron in size), and their behavior is controlled by their local biogeochemical environment (typically within a single pore or a biofilm on a grain surface, on the order of tens of microns in size). However, their metabolic activity exerts strong influence on the transport and fate of groundwater contaminants of significant concern at DOE sites, in contaminant plumes with spatial extents of meters to kilometers. This report describes progress and key findings from research aimed at integrating models of microbial metabolism based on genomic information (small scale) with models of contaminant fate and transport in aquifers (field scale).

Scheibe, Timothy D.

2011-03-31T23:59:59.000Z

55

Climatic and biogeochemical effects of a galactic gamma ray burst Adrian L. Melott,1  

E-Print Network [OSTI]

Climatic and biogeochemical effects of a galactic gamma ray burst Adrian L. Melott,1 Brian C. Jackman (2005), Climatic and biogeochemical effects of a galactic gamma ray burst, Geophys. Res. Lett., 32, L14808, doi:10.1029/2005GL023073. 1. Terrestrial Implications of Gamma Ray Bursts in Our Galaxy [2

Jackman, Charles H.

56

Dust in the Earth system: The biogeochemical linking of land, air, and  

E-Print Network [OSTI]

1 Dust in the Earth system: The biogeochemical linking of land, air, and sea Andy Ridgwell1 of CO2 from the atmosphere. The complex way in which dust biogeochemically links land, air, and sea of atmospheric aerosols. In this review, however, we consider dust to be soil mineral fragments. The entrainment

Kohfeld, Karen

57

Global dynamic optimization  

E-Print Network [OSTI]

(cont.) on a set composed of the Cartesian product between the parameter bounds and the state bounds. Furthermore, I show that the solution of the differential equations is affine in the parameters. Because the feasible ...

Singer, Adam B

2004-01-01T23:59:59.000Z

58

Bio-optical profiling floats as new observational tools for biogeochemical and ecosystem studies: Potential synergies with ocean color remote sensing  

SciTech Connect (OSTI)

Profiling floats now represent a mature technology. In parallel with their emergence, the field of miniature, low power bio-optical and biogeochemical sensors is rapidly evolving. Over recent years, the bio-geochemical and bio-optical community has begun to benefit from the increase in observational capacities by developing profiling floats that allow the measurement of key biooptical variables and subsequent products of biogeochemical and ecosystem relevance like Chlorophyll a (Chla), optical backscattering or attenuation coefficients which are proxies of Particulate Organic Carbon (POC), Colored Dissolved Organic Matter (CDOM). Thanks to recent algorithmic improvements, new bio-optical variables such as backscattering coefficient or absorption by CDOM, at present can also be extracted from space observations of ocean color. In the future, an intensification of in situ measurements by bio-optical profiling floats would permit the elaboration of unique 3D/4D bio-optical climatologies, linking surface (remotely detected) properties to their vertical distribution (measured by autonomous platforms), with which key questions in the role of the ocean in climate could be addressed. In this context, the objective of the IOCCG (International Ocean Color Coordinating Group) BIO-Argo working group is to elaborate recommendations in view of a future use of bio-optical profiling floats as part of a network that would include a global array that could be 'Argo-relevant', and specific arrays that would have more focused objectives or regional targets. The overall network, realizing true multi-scale sustained observations of global marine biogeochemistry and biooptics, should satisfy the requirements for validation of ocean color remote sensing as well as the needs of a wider community investigating the impact of global change on biogeochemical cycles and ecosystems. Regarding the global profiling float array, the recommendation is that Chla as well as POC should be the key variables to be systematically measured. A first target would be to implement 20% of the Argo floats with these measurements within a five-year term. The yearly additional cost is estimated to 1.5 M$, including additional management structure in each of the two Global Data Assembly Centers.

Claustre, H.; Bishop, J.; Boss, E.; Bernard, S.; Berthon, J.-F.; Coatanoan, C.; Johnson, K.; Lotiker, A.; Ulloa, O.; Perry, M.J.; D'Ortenzio, F.; D'andon, O.H.F.; Uitz, J.

2009-10-01T23:59:59.000Z

59

Turning quicksand into bedrock : understanding the dynamic effects of disease-focused global health aid on health systems  

E-Print Network [OSTI]

This thesis asks one basic question: how do "vertical" disease- or intervention-focused global health programs impact the underlying health systems of the nations they serve? Vertical programs-health aid focused on a ...

Newkirk, Brian J

2009-01-01T23:59:59.000Z

60

"ACCEPTED FOR PUBLICATION IN GLOBAL BIOGEOCHEMICAL CYCLES.1 COPYRIGHT (2010) AMERICAN GEOPHYSICAL UNION. FURTHER2  

E-Print Network [OSTI]

matter, resulting from28 changes in growth-limiting conditions [D A Hutchins and K W Bruland, 1998; L

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "global biogeochemical 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

Marine geochemical data assimilation in an efficient Earth System Model of global biogeochemical cycling  

E-Print Network [OSTI]

Abstract. We have extended the 3-D ocean based ďGrid ENabled Integrated Earth system model Ē (GENIE-1) to help understand the role of ocean biogeochemistry and marine sediments in the long-term (?100 to 100 000 year) regulation of atmospheric CO2, and the importance of feedbacks between CO2 and climate. Here we describe the ocean carbon cycle, which in its first incarnation is based around a simple single nutrient (phosphate) control on biological productivity. The addition of calcium carbonate preservation in deep-sea sediments and its role in regulating atmospheric CO2 is presented elsewhere (Ridgwell and Hargreaves, 2007). We have calibrated the model parameters controlling ocean carbon cycling in GENIE-1 by assimilating 3-D observational datasets of phosphate and alkalinity using an ensemble Kalman filter method. The calibrated (mean) model predicts

A. Ridgwell; J. C. Hargreaves; N. R. Edwards; J. D. Annan; T. M. Lenton; R. Marsh; A. Yool; A. Watson

2006-01-01T23:59:59.000Z

62

GLOBAL BIOGEOCHEMICAL CYCLES, VOL. ???, XXXX, DOI:10.1029/, Estimating mineral aerosol iron and aluminum1  

E-Print Network [OSTI]

and aluminum1 solubility from particle size using diffusion-controlled2 and surface [Jickells et al., 2005].34 Aluminum, on the other hand, is not found to be an important nutrient chemistry compared to Fe, aluminum has been used as a39 tracer for quantifying the dust deposition

Zender, Charles

63

SWS 5182: Earth System Analysis Catalogue Description: Analysis of global-scale interdependences between climate, biogeochemical  

E-Print Network [OSTI]

System Model Carbon sequestration and climate mitigation potential of vegetation and soils 12 - 13 Earth fuel 11 Terrestrial biogeochemistry Chapter 5 and Chapter 6 Account for land carbon cycle in your Earth

Ma, Lena

64

SWS4180: Earth System Analysis Catalogue Description: Analysis of global-scale interdependences between climate, biogeochemical  

E-Print Network [OSTI]

Ocean-atmosphere carbon balance Chapter 8 Gruber and Sarmiento (available in course reserves, meeting times will be used to discuss materials and homework and provide ample opportunity to address materials. Class Attendance: Required for students enrolled in the on campus section. Prerequisites

Ma, Lena

65

Global Statistics  

E-Print Network [OSTI]

1996). Globalization in Question: International Economy andGlobalization; Justice; Poverty; Underground Economy; United

Crow, Ben D

2006-01-01T23:59:59.000Z

66

An Ecological and Biogeochemical Characterization of a Subterranean Estuary in the Yucatan Peninsula, Mexico.  

E-Print Network [OSTI]

physicochemical boundaries characterize anchialine caves, a subset of subterranean estuaries. This study serves as a biogeochemical and ecological characterization of Sistema Crustacea, an anchialine cave in the Yucatan Peninsula with dense populations of cave...

Haukebo, Sepp Leif

2014-01-16T23:59:59.000Z

67

Feedbacks between hydrological heterogeneity and bioremediation induced biogeochemical transformations  

SciTech Connect (OSTI)

For guiding optimal design and interpretation of in-situ treatments that strongly perturb subsurface systems, knowledge about the spatial and temporal patterns of mass transport and reaction intensities are important. Here, a procedure was developed and applied to time-lapse concentrations of a conservative tracer (bromide), an injected amendment (acetate) and reactive species (iron(II), uranium(VI) and sulfate) associated with two field scale biostimulation experiments, which were conducted successively at the same field location over two years. The procedure is based on a temporal moment analysis approach that relies on a streamtube approximation. The study shows that biostimulated reactions can be considerably influenced by subsurface hydrological and geochemical heterogeneities: the delivery of bromide and acetate and the intensity of the sulfate reduction is interpreted to be predominantly driven by the hydrological heterogeneity, while the intensity of the iron reduction is interpreted to be primarily controlled by the geochemical heterogeneity. The intensity of the uranium(VI) reduction appears to be impacted by both the hydrological and geochemical heterogeneity. Finally, the study documents the existence of feedbacks between hydrological heterogeneity and remediation-induced biogeochemical transformations at the field scale, particularly the development of precipitates that may cause clogging and flow rerouting.

Englert, A.; Hubbard, S.S.; Williams, K.H.; Li, L.; Steefel, C.I.

2009-04-15T23:59:59.000Z

68

On the global economic potentials and marginal costs of non-renewable resources and the price dynamics of energy commodities  

E-Print Network [OSTI]

A model is presented in this work for simulating endogenously the evolution of the marginal costs of production of energy carriers from non-renewable resources, their consumption, depletion pathways and timescales. Such marginal costs can be used to simulate the long term average price formation of energy commodities. Drawing on previous work where a global database of energy resource economic potentials was constructed, this work uses cost distributions of non-renewable resources in order to evaluate global flows of energy commodities. A mathematical framework is given to calculate endogenous flows of energy resources given an exogenous commodity price path. This framework can be used in reverse in order to calculate an exogenous marginal cost of production of energy carriers given an exogenous carrier demand. Using rigid price inelastic assumptions independent of the economy, these two approaches generate limiting scenarios that depict extreme use of natural resources. This is useful to characterise the cur...

Mercure, Jean-Francois

2013-01-01T23:59:59.000Z

69

Global Statistics  

E-Print Network [OSTI]

of Globalization: Statistics Weiss, L. (1997). "of Globalization: Statistics Milanovic, B. (1999). Truethe focus of global statistics, particularly in relation to

Crow, Ben D

2006-01-01T23:59:59.000Z

70

Hydrological and biogeochemical cycling along the Greenland ice sheet margin  

E-Print Network [OSTI]

Global warming has led to a significant increase in Greenland ice sheet (GrIS) melt and runoff since 1990, resulting in escalated export of fresh water and associated sediment to the surrounding North Atlantic and Arctic ...

Bhatia, Maya Pilar, 1979-

2012-01-01T23:59:59.000Z

71

Coupled Biogeochemical Process Evaluation for Conceptualizing Trichloroethylene Co-Metabolism  

SciTech Connect (OSTI)

Chlorinated solvent wastes (e.g., trichloroethene or TCE) often occur as diffuse subsurface plumes in complex geological environments where coupled processes must be understood in order to implement remediation strategies. Monitored natural attenuation (MNA) warrants study as a remediation technology because it minimizes worker and environment exposure to the wastes and because it costs less than other technologies. However, to be accepted MNA requires different ?lines of evidence? indicating that the wastes are effectively destroyed. We are studying the coupled biogeochemical processes that dictate the rate of TCE co-metabolism first in the medial zone (TCE concentration: 1,000 to 20,000 ?g/L) of a plume at the Idaho National Laboratory?s Test Area North (TAN) site and then at Paducah or the Savannah River Site. We will use flow-through in situ reactors (FTISR) to investigate the rate of methanotrophic co-metabolism of TCE and the coupling of the responsible biological processes with the dissolved methane flux and groundwater flow velocity. TCE co-metabolic rates at TAN are being assessed and interpreted in the context of enzyme activity, gene expression, and cellular inactivation related to intermediates of TCE co-metabolism. By determining the rate of TCE co-metabolism at different groundwater flow velocities, we will derive key modeling parameters for the computational simulations that describe the attenuation, and thereby refine such models while assessing the contribution of microbial co-metabolism relative to other natural attenuation processes. This research will strengthen our ability to forecast the viability of MNA at DOE and other sites contaminated with chlorinated hydrocarbons.

Rick Colwell; Corey Radtke; Mark Delwiche; Deborah Newby; Lynn Petzke; Mark Conrad; Eoin Brodie; Hope Lee; Bob Starr; Dana Dettmers; Ron Crawford; Andrzej Paszczynski; Nick Bernardini; Ravi Paidisetti; Tonia Green

2006-06-01T23:59:59.000Z

72

Coupled Biogeochemical Process Evaluation for Conceptualizing Trichloroethylene Co-Metabolism  

SciTech Connect (OSTI)

Chlorinated solvent wastes (e.g., trichloroethene or TCE) often occur as diffuse subsurface plumes in complex geological environments where coupled processes must be understood in order to implement remediation strategies. Monitored natural attenuation (MNA) warrants study as a remediation technology because it minimizes worker and environment exposure to the wastes and because it costs less than other technologies. However, to be accepted MNA requires 'lines of evidence' indicating that the wastes are effectively destroyed. Our research will study the coupled biogeochemical processes that dictate the rate of TCE co-metabolism in contaminated aquifers first at the Idaho National Laboratory and then at Paducah or the Savannah River Site, where natural attenuation of TCE is occurring. We will use flow-through in situ reactors to investigate the rate of methanotrophic co-metabolism of TCE and the coupling of the responsible biological processes with the dissolved methane flux and groundwater flow velocity. We will use new approaches (e.g., stable isotope probing, enzyme activity probes, real-time reverse transcriptase polymerase chain reaction, proteomics) to assay the TCE co-metabolic rates, and interpret these rates in the context of enzyme activity, gene expression, and cellular inactivation related to intermediates of TCE co-metabolism. By determining the rate of TCE co-metabolism at different methane concentrations and groundwater flow velocities, we will derive key modeling parameters for the computational simulations that describe the attenuation, and thereby refine such models while assessing the contribution of microbial relative to other natural attenuation processes. This research will strengthen our ability to forecast the viability of MNA at DOE and other sites that are contaminated with chlorinated hydrocarbons.

Colwell, Frederick; Radtke, Corey; Newby, Deborah; Delwiche, Mark; Crawf, Ronald L.; Paszczynski, Andrzej; Strap, Janice; Conrad, Mark; Brodic, Eoin; Starr, Robert; Lee, Hope

2006-04-05T23:59:59.000Z

73

Motor learning of novel dynamics is not represented in a single global coordinate system: evaluation of mixed coordinate representations  

E-Print Network [OSTI]

. A second experiment, in which we replicated the design of an influential study that had suggested encoding represent novel dynamics while making reaching movements in a robot-rendered force field. By proposing two categorically distinct hypotheses of extrinsic (i.e., Cartesian based) and intrinsic (i.e., joint based

Franklin, David

74

The UN Standing Committee on Nutrition (UNSCN) offers a new internship position. Are you interested in experiencing nutrition at a global level while working in Geneva with a dynamic  

E-Print Network [OSTI]

The UN Standing Committee on Nutrition (UNSCN) offers a new internship position. Are you interested in experiencing nutrition at a global level while working in Geneva with a dynamic and international team related field) who is seeking work experience within the UN system. The main focus of this internship

Mullins, Dyche

75

Biogeochemical changes at early stage after the closure of radioactive waste geological repository in South Korea  

E-Print Network [OSTI]

Biogeochemical changes at early stage after the closure of radioactive waste geological repository e Korea Radioactive Waste Agency (KORAD), 111, Daedeok-daero 989 beon-gil, Yuseong-gu, Daejeon 305 Organic waste a b s t r a c t Permanent disposal of low- and intermediate-level radioactive wastes

Ohta, Shigemi

76

Author's personal copy A biogeochemical study of sediments from the eutrophic Lake Lugano  

E-Print Network [OSTI]

Author's personal copy A biogeochemical study of sediments from the eutrophic Lake Lugano) and carbonate from sediment cores from the oligotrophic Lake Brienz and the eutrophic Lake Lugano (both. Eutrophic conditions at Lake Lugano are reflected in elevated total organic carbon (TOC) content

Wehrli, Bernhard

77

In Cooperation with the National Park Service Water Quality Program Biogeochemical Processes in an Urban, Restored  

E-Print Network [OSTI]

In Cooperation with the National Park Service Water Quality Program Biogeochemical Processes in an Urban, Restored Wetland of San Francisco Bay, California, 2007­ 2009: Methods and Data for Plant, Sediment, and Water Parameters By Lisamarie Windham-Myers, Mark C. Marvin-DiPasquale, Jennifer L. Agee, Le

78

An integrated biogeochemical and economic analysis of bioenergy crops in the Midwestern United States  

E-Print Network [OSTI]

-specific economic analysis of breakeven prices of bioenergy crop production to assess the biophysical and economicAn integrated biogeochemical and economic analysis of bioenergy crops in the Midwestern United potential of biofuel production in the Midwestern United States. The bioenergy crops considered

Jain, Atul K.

79

Assimilation of surface data in a one-dimensional physical-biogeochemical model of the surface ocean: 1. Method and preliminary results  

SciTech Connect (OSTI)

This paper describes a method to estimate parameters of complex ocean carbon cycle models and to estimate carbon fluxes other than primary production from satellite data. A one-dimensional vertical model, which couples the physics of the ocean mixed layer and biogeochemical processes, was used to simulate the carbon cycle. Variational assimilation was applied to globally adjust the model solution. Consistent results were found for the grazing rate, the phytoplankton mortality rate, and the minimum concentration of zooplankton in winter. Some carbon fluxes appeared to be robustly constrained; however, primary production is apparently underestimated. The study results suggest that a simplified biological model would adequately the seasonal evolution of surface chlorophyll concentration, and would be more adapted to transform satellite data into carbon fluxes. Analysis of model behavior during assimilation experiments also provided information for other possible simplifications of the trophic model. 49 refs., 17 figs., 5 tabs.

Prunet, P.; Minster, J.F. [Laboratoire CNES-CNRS, Toulouse (France)] [Laboratoire CNES-CNRS, Toulouse (France); Ruiz-Pino, D. [Universite Pierre et Marie Curie, Paris (France)] [Universite Pierre et Marie Curie, Paris (France)

1996-03-01T23:59:59.000Z

80

Global ClimateGlobal Climate meets dynamics inmeets dynamics in  

E-Print Network [OSTI]

texture.texture. Here we will go to high latitudes for examples, whereHere we will go to high latitudes Arctic basin. From satellite passive microwave radiometer.meter. #12;Beneath the ocean surface, moisture flux, heat fluxwinds, moisture flux, heat flux meridionalmeridional energy transportenergy

Note: This page contains sample records for the topic "global biogeochemical 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

High arctic heath soil respiration and biogeochemical dynamics during summer and autumn freeze-in effects  

E-Print Network [OSTI]

-growing season lasting 9­10 months, ecosystem carbon sequestration in summer may be offset by cumulative soil CO2 autumn. We speculate that this is due to intensified depletion of recently fixed plant carbon by soil through plant-associated carbon pools. Nitrogen addition alone consistently increased Rsoil, but when

82

Goldschmidt 2012 Abstract Template (maximum: 1 column) Biogeochemical Dynamics of Aqueous  

E-Print Network [OSTI]

a high capacity to complex carbon (C), reducing susceptibility of C to microbial degradation. At the same the microbial degradation of organics and formation of humic compounds. The National Science Foundation (NSF, conductivity, major anions, major cations, D, and 18O. DOM quality was characterized using UV

Sparks, Donald L.

83

On Integrating Theories of International Economics in the Strategic Planning of Global Supply Chains and Dynamic Supply Chain Reconfiguration with Capacity Expansion and Contraction  

E-Print Network [OSTI]

that incorporating them in the form of readily available individual competitiveness indicators in OR/MS models offers promise to enhance decision-support for the strategic planning of global supply chains in general, and for locating facilities in particular...

Lee, Chaehwa

2012-02-14T23:59:59.000Z

84

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

85

Past and Future Effects of Ozone on Net Primary Production and Carbon Sequestration Using a Global Biogeochemical Model  

E-Print Network [OSTI]

Exposure of plants to ozone inhibits photosynthesis and therefore reduces vegetation production and carbon sequestration. Simulations with the Terrestrial Ecosystem Model (TEM) for the historical period (1860-1995) show ...

Felzer, Benjamin Seth.

86

Global ice sheet modeling  

SciTech Connect (OSTI)

The University of Maine conducted this study for Pacific Northwest Laboratory (PNL) as part of a global climate modeling task for site characterization of the potential nuclear waste respository site at Yucca Mountain, NV. The purpose of the study was to develop a global ice sheet dynamics model that will forecast the three-dimensional configuration of global ice sheets for specific climate change scenarios. The objective of the third (final) year of the work was to produce ice sheet data for glaciation scenarios covering the next 100,000 years. This was accomplished using both the map-plane and flowband solutions of our time-dependent, finite-element gridpoint model. The theory and equations used to develop the ice sheet models are presented. Three future scenarios were simulated by the model and results are discussed.

Hughes, T.J.; Fastook, J.L. [Univ. of Maine, Orono, ME (United States). Institute for Quaternary Studies

1994-05-01T23:59:59.000Z

87

Terrestrial biogeochemical feedbacks in the climate system: from past to future  

SciTech Connect (OSTI)

The terrestrial biosphere plays a major role in the regulation of atmospheric composition, and hence climate, through multiple interlinked biogeochemical cycles (BGC). Ice-core and other palaeoenvironmental records show a fast response of vegetation cover and exchanges with the atmosphere to past climate change, although the phasing of these responses reflects spatial patterning and complex interactions between individual biospheric feedbacks. Modern observations show a similar responsiveness of terrestrial biogeochemical cycles to anthropogenically-forced climate changes and air pollution, with equally complex feedbacks. For future conditions, although carbon cycle-climate interactions have been a major focus, other BGC feedbacks could be as important in modulating climate changes. The additional radiative forcing from terrestrial BGC feedbacks other than those conventionally attributed to the carbon cycle is in the range of 0.6 to 1.6 Wm{sup -2}; all taken together we estimate a possible maximum of around 3 Wm{sup -2} towards the end of the 21st century. There are large uncertainties associated with these estimates but, given that the majority of BGC feedbacks result in a positive forcing because of the fundamental link between metabolic stimulation and increasing temperature, improved quantification of these feedbacks and their incorporation in earth system models is necessary in order to develop coherent plans to manage ecosystems for climate mitigation.

Arneth, A.; Harrison, S. P.; Zaehle, S.; Tsigaridis, K; Menon, S; Bartlein, P.J.; Feichter, J; Korhola, A; Kulmala, M; O'Donnell, D; Schurgers, G; Sorvari, S; Vesala, T

2010-01-05T23:59:59.000Z

88

Biogeochemical Changes at Early Stage After the Closure of Radioactive Waste Geological Repository in South Korea  

SciTech Connect (OSTI)

Permanent disposal of low- and intermediate-level radioactive wastes in the subterranean environment has been the preferred method of many countries, including Korea. A safety issue after the closure of a geological repository is that biodegradation of organic materials due to microbial activities generates gases that lead to overpressure of the waste containers in the repository and its disintegration with the release of radionuclides. As part of an ongoing large-scale in situ experiment using organic wastes and groundwater to simulate geological radioactive waste repository conditions, we investigated the geochemical alteration and microbial activities at an early stage (~63 days) intended to be representative of the initial period after repository closure. The increased numbers of both aerobes and facultative anaerobes in waste effluents indicate that oxygen content could be the most significant parameter to control biogeochemical conditions at very early periods of reaction (<35 days). Accordingly, the values of dissolved oxygen and redox potential were decreased. The activation of anaerobes after 35 days was supported by the increased concentration to ~50 mg L-1 of ethanol. These results suggest that the biogeochemical conditions were rapidly altered to more reducing and anaerobic conditions within the initial 2 months after repository closure. Although no gases were detected during the study, activated anaerobic microbes will play more important role in gas generation over the long term.

Choung, Sungwook [Pohang Univ. of Science and Technology (Korea, Republic of); Um, Wooyong [Pohang Univ. of Science and Technology (Korea, Republic of); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Choi, Seho [Pohang Univ. of Science and Technology (Korea, Republic of); Francis, Arokiasamy J. [Pohang Univ. of Science and Technology (Korea, Republic of); Brookhaven National Laboratory (BNL), Upton, NY (United States); Kim, Sungpyo [Korea Univ., Sejong (Korea, Republic of); Park, Jin beak [Korea Radioactive Waste Agency (KORAD), Daejeon (Korea, Republic of); Kim, Suk-Hoon [FNC Technology Co., Seoul National University (Korea, Republic of)

2014-03-18T23:59:59.000Z

89

Global Warming  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky LearningGet Assistance GetGiantOn The VergeGlobal Threat1 Global

90

Multi-scale Characterization and Prediction of Coupled Subsurface Biogeochemical-Hydrological Processes  

SciTech Connect (OSTI)

To advance solutions needed for remediation of DOE contaminated sites, approaches are needed that can elucidate and predict reactions associated with coupled biological, geochemical, and hydrological processes over a variety of spatial scales and in heterogeneous environments. Our previous laboratory experimental experiments, which were conducted under controlled and homogeneous conditions, suggest that geophysical methods have the potential for elucidating system transformations that often occur during remediation. Examples include tracking the onset and aggregation of precipitates associated with sulfate reduction using seismic and complex resistivity methods (Williams et al., 2005; Ntarlagiannis et al., 2005) as well as estimating the volume of evolved gas associated with denitrification using radar velocity. These exciting studies illustrated that geophysical responses correlated with biogeochemical changes, but also that multiple factors could impact the geophysical signature and thus a better understanding as well as integration tools were needed to advance the techniques to the point where they can be used to provide quantitative estimates of system transformations.

Hubbard, Susan; Williams, Ken; Steefel, Carl; Banfield, Jill; Long, Phil; Slater, Lee; Pride, Steve; Jinsong Chen

2006-06-01T23:59:59.000Z

91

Atmospheric carbon dioxide and the global carbon cycle  

SciTech Connect (OSTI)

This state-of-the-art volume presents discussions on the global cycle of carbon, the dynamic balance among global atmospheric CO2 sources and sinks. Separate abstracts have been prepared for the individual papers. (ACR)

Trabalka, J R [ed.

1985-12-01T23:59:59.000Z

92

Global warming and global dioxide emission: An empirical study  

SciTech Connect (OSTI)

In this paper, the dynamic relationship between global surface temperature (global warming) and global carbon dioxide emission (CO{sub 2}) is modelled and analyzed by causality and spectral analysis in the time domain and frequency domain, respectively. Historical data of global CO{sub 2} emission and global surface temperature anomalies over 129 years from 1860-1988 are used in this study. The causal relationship between the two phenomena is first examined using the Sim and Granger causality test in the time domain after the data series are filtered by ARIMA models. The Granger causal relationship is further scrutinized and confirmed by cross-spectral and multichannel spectral analysis in the frequency domain. The evidence found from both analyses proves that there is a positive causal relationship between the two variables. The time domain analysis suggests that Granger causality exists between global surface temperature and global CO{sub 2} emission. Further, CO{sub 2} emission causes the change in temperature. The conclusions are further confirmed by the frequency domain analysis, which indicates that the increase in CO{sub 2} emission causes climate warming because a high coherence exists between the two variables. Furthermore, it is proved that climate changes happen after an increase in CO{sub 2} emission, which confirms that the increase in CO{sub 2} emission does cause global warming. 27 refs., 10 figs., 5 tabs.

Linyan Sun [Xian Jiaotong Univ., Shaanxi (China); Wang, M. [Saint Mary`s Univ., Halifax, Nova Scotia (Canada)

1996-04-01T23:59:59.000Z

93

Global Health Research | 2 Global Health Research  

E-Print Network [OSTI]

Global Health Research | 2 Global Health Research Supporting researchers in low- and middle-income countries to carry out health- related research within their own countries. Gl bal Health #12;3 | Global Health Research #12;Global Health Research | 4 We are a global charitable foundation dedicated

Rambaut, Andrew

94

Understanding Global Capitalism  

E-Print Network [OSTI]

sociology; globalization; political economy; development;economy fueled through 700 billion dollars injected into globalizationGlobalization Studies, also called CGS. I would economy and

Robinson, William I.

2008-01-01T23:59:59.000Z

95

Review: Global Climate Change  

E-Print Network [OSTI]

introduction to global climate change, the greenhouseReview: Global Climate Change: A Primer By Orrin H PilkeyPilkey, Keith C. Global Climate Change: a primer. Durham,

Smith, Jennifer

2013-01-01T23:59:59.000Z

96

Variably Saturated Flow and Multicomponent Biogeochemical Reactive Transport Modeling of a Uranium Bioremediation Field Experiment  

SciTech Connect (OSTI)

Field experiments at a former uranium mill tailings site have identified the potential for stimulating indigenous bacteria to catalyze the conversion of aqueous uranium in the +6 oxidation state to immobile solid-associated uranium in the +4 oxidation state. This effectively removes uranium from solution resulting in groundwater concentrations below actionable standards. Three-dimensional, coupled variably-saturated flow and biogeochemical reactive transport modeling of a 2008 in situ uranium bioremediation field experiment is used to better understand the interplay of transport rates and biogeochemical reaction rates that determine the location and magnitude of key reaction products. A comprehensive reaction network, developed largely through previous 1-D modeling studies, was used to simulate the impacts on uranium behavior of pulsed acetate amendment, seasonal water table variation, spatially-variable physical (hydraulic conductivity, porosity) and geochemical (reactive surface area) material properties. A principal challenge is the mechanistic representation of biologically-mediated terminal electron acceptor process (TEAP) reactions whose products significantly alter geochemical controls on uranium mobility through increases in pH, alkalinity, exchangeable cations, and highly reactive reduction products. In general, these simulations of the 2008 Big Rusty acetate biostimulation field experiment in Rifle, Colorado confirmed previously identified behaviors including (1) initial dominance by iron reducing bacteria that concomitantly reduce aqueous U(VI), (2) sulfate reducing bacteria that become dominant after {approx}30 days and outcompete iron reducers for the acetate electron donor, (3) continuing iron-reducer activity and U(VI) bioreduction during dominantly sulfate reducing conditions, and (4) lower apparent U(VI) removal from groundwater during dominantly sulfate reducing conditions. New knowledge on simultaneously active metal and sulfate reducers has been incorporated into the modeling. In this case, an initially small population of slow growing sulfate reducers is active from the initiation of biostimulation. Three-dimensional, variably saturated flow modeling was used to address impacts of a falling water table during acetate injection. These impacts included a significant reduction in aquifer saturated thickness and isolation of residual reactants and products, as well as unmitigated uranium, in the newly unsaturated vadose zone. High permeability sandy gravel structures resulted in locally high flow rates in the vicinity of injection wells that increased acetate dilution. In downgradient locations, these structures created preferential flow paths for acetate delivery that enhanced local zones of TEAP reactivity and subsidiary reactions. Conversely, smaller transport rates associated with the lower permeability lithofacies (e.g., fine) and vadose zone were shown to limit acetate access and reaction. Once accessed by acetate, however, these same zones limited subsequent acetate dilution and provided longer residence times that resulted in higher concentrations of TEAP products when terminal electron donors and acceptors were not limiting. Finally, facies-based porosity and reactive surface area variations were shown to affect aqueous uranium concentration distributions; however, the ranges were sufficiently small to preserve general trends. Large computer memory and high computational performance were required to simulate the detailed coupled process models for multiple biogeochemical components in highly resolved heterogeneous materials for the 110-day field experiment and 50 days of post-biostimulation behavior. In this case, a highly-scalable subsurface simulator operating on 128 processor cores for 12 hours was used to simulate each realization. An equivalent simulation without parallel processing would have taken 60 days, assuming sufficient memory was available.

Yabusaki, Steven B.; Fang, Yilin; Williams, Kenneth H.; Murray, Christopher J.; Ward, Anderson L.; Dayvault, Richard; Waichler, Scott R.; Newcomer, Darrell R.; Spane, Frank A.; Long, Philip E.

2011-11-01T23:59:59.000Z

97

Spatial and temporal controls on biogeochemical indicators at the small-scale interface between a contaminated aquifer and wetland surface water  

E-Print Network [OSTI]

from three locations exhibiting upward, downward, and negligent hydrologic flow between aquifer and wetland. PCA was used to identify the principal biogeochemical processes and to obtain factor scores for evaluating significant seasonal and hydrological...

Baez-Cazull, Susan Enid

2009-05-15T23:59:59.000Z

98

Sustainable Management of Biogeochemical Cycles in Soils Amended with Bio-Resources from Livestock, Bioenergy, and Urban Systems  

E-Print Network [OSTI]

iii SUSTAINABLE MANAGEMENT OF BIOGEOCHEMICAL CYCLES IN SOILS AMENDED WITH BIO-RESOURCES FROM LIVESTOCK, BIOENERGY, AND URBAN SYSTEMS A Dissertation by RONNIE WAYNE SCHNELL Submitted to the Office of Graduate Studies of Texas A...-RESOURCES FROM LIVESTOCK, BIOENERGY, AND URBAN SYSTEMS A Dissertation by RONNIE WAYNE SCHNELL Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY...

Schnell, Ronnie Wayne

2011-10-21T23:59:59.000Z

99

Academy for Global Engagement  

E-Print Network [OSTI]

Academy for Global Engagement 2013-2014 Global Fellows #12;Meredith Gore and Wildlife #12;Global Research Interests · risk percepHon and public support and Agricultural Engineering #12;Global Research Interests · catalyHc conversion of biomass

100

global warming's six indias  

E-Print Network [OSTI]

global warming's six indias: An Audience Segmentation Analysis #12;Global Warming's Six Indias 1............................................................................................................................................20 2. Global Warming Beliefs and Attitudes................................................................................ 21 Knowledge about global warming varies widely by group

Haller, Gary L.

Note: This page contains sample records for the topic "global biogeochemical 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

Global vegetation model diversity and the risks of climate-driven ecosystem shifts  

SciTech Connect (OSTI)

Climate change is modifying global biogeochemical cycles, and is expected to exert increasingly large effects in the future. How these changes will in turn affect and interact with the structure and function of particular ecosystems is unclear, however, both because of scientific uncertainties and the very diversity of global vegetation models in use. Writing in Environmental Research Letters, Warszawski et al. (1) aggregate results from a group of models, across a range of emissions scenarios and climate data, to investigate these risks. Although the models frequently disagree about which specific regions are at risk, they consistently predict a greater chance of ecosystem restructuring with more warming; this risk roughly doubles between 2 and 3 įC increases in global mean temperature. The innovative work of Warszawski et al. represents an important first step towards fully consistent multi-model, multi-scenario assessments of the future risks to global ecosystems.

Bond-Lamberty, Benjamin

2013-11-08T23:59:59.000Z

102

Biogeochemical processes governing exposure and uptake of organic pollutant compounds in aquatic organisms. Environmental Health Perspectives  

E-Print Network [OSTI]

This paper reviews current knowledge of biogeochemical cycles of pollutant organic chemicals in aquatic ecosystems with a focus on coastal ecosystems. There is a bias toward discussng chemkal and geochemical aspects ofbiogeochemical cycles and an emphasis on hydrophobic organic compounds such as polynuckar aromatic hydrocarbons, polychlorinated biphenyls, and chlorinated organic compounds used as pesticides. The complexity of mixtures of pollutant organic compounds, their various modes of entering ecosystems, and their physical chemical forms are discussed. Important factors that influence bioavailability and disposition (e.g., organism-water partitioning, uptake via food, food meb transfer) are reviewed. These factors include solubilities of chemicals; partitioning of chemicals between solid surfaces, colloids, and soluble phases; variables rates of sorption, desorption; and physiological status of organism. It appears that more emphasis on considering food as a source of uptake and bioaccumulation is important in benthic and epibenthic ecosystems when sediment-associated pollutants are a nt source of input to an aquatic ecosystem. Progress with mathematical models for exposure and uptake of contaminant chemicals is discussed briefly.

John W. Farrington

1991-01-01T23:59:59.000Z

103

A Global Optimization Approach to Quantum Mechanics  

E-Print Network [OSTI]

This paper presents a global optimization approach to quantum mechanics, which describes the most fundamental dynamics of the universe. It suggests that the wave-like behavior of (sub)atomic particles could be the critical characteristic of a global optimization method deployed by nature so that (sub)atomic systems can find their ground states corresponding to the global minimum of some energy function associated with the system. The classic time-independent Schrodinger equation is shown to be derivable from the global optimization method to support this argument.

Xiaofei Huang

2006-05-25T23:59:59.000Z

104

Two Phase Dynamics as the Origin to: 0.25 keV and 0.1 keV X-ray Diffuse Backgrounds, CMB, Global Quantized Redshift, 10 Mpc Space distributions and 30 Myr Cycles at Earth Phenomena  

E-Print Network [OSTI]

An Alternative to explain the origin of matter-background connections from the paper "Do Cosmic Backgrounds Cyclical Renew by Matter and Quanta Emissions?..." proposed: A sequence of discontinuous small changes of light speed in time as the cause, which provoke that criticality processes take place every 26-30 million years. Then, matter particles and quanta reach at one threshold value, and are compelled to reorganize their internal energy and make emissions that later becomes in current cosmic backgrounds. The small discontinues relative decreasing of c of about 10 -5) should do some small effects on planet and living bodies. Cyclic small reorganization of matter particles is consider as the astrophysical origin of Earth cyclic catastrophes. And at space global distribution: quantized redshift, change of galaxy fractal distribution at 10 Mpc scale, galaxy average luminosity and the luminosity fluctuation of galaxy pairs are enhanced out to separations near 10 Mpc. Also proposed: Like the Universe is observed flat in distance and time, the gravitational constant G might decrease with time, which may originate the Earth orbit eccentricity cycle of 100000 yr and, provoke the former mentioned sequence of c decrease in time. And, every 6 million years, the accumulation of G relative decrease of about 10-5 in G compelled space-time to reach at one threshold value that, trigger small relative decrease of light speed c of about 10-5 cyclically. This is interpreted as the Universe has two dynamical phases following one each other cyclically with intervals of 26-30 million years respectively: One of about 0.1 million years, called "activation phase", at which the critical processes take place, follows by longer "inhibition phase". The present approach indicates the existence of a subtle non linear dynamics, which could also contribute to the origin of galaxy fractal distribution.

Eduardo del Pozo Garcia

2015-02-25T23:59:59.000Z

105

Natural Organobromine in Marine Sediments: New Evidence of Biogeochemical Br Cycling  

SciTech Connect (OSTI)

Organobromine (Br{sub org}) compounds, commonly recognized as persistent, toxic anthropogenic pollutants, are also produced naturally in terrestrial and marine systems. Several enzymatic and abiotic bromination mechanisms have been identified, as well as an array of natural Br{sub org} molecules associated with various marine organisms. The fate of the carbon-bromine functionality in the marine environment, however, remains largely unexplored. Oceanographic studies have noted an association between bromine (Br) and organic carbon (C{sub org}) in marine sediments. Even so, there has been no direct chemical evidence that Br in the sediments exists in a stable form apart from inorganic bromide (Br{sub inorg}), which is widely presumed conservative in marine systems. To investigate the scope of natural Br{sub org} production and its fate in the environment, we probed Br distribution and speciation in estuarine and marine sediments using in situ X-ray spectroscopy and spectromicroscopy. We show that Br{sub org} is ubiquitous throughout diverse sedimentary environments, occurring in correlation with C{sub org} and metals such as Fe, Ca, and Zn. Analysis of sinking particulate carbon from the seawater column links the Br{sub org} observed in sediments to biologically produced Br{sub org} compounds that persist through humification of natural organic matter (NOM). Br speciation varies with sediment depth, revealing biogeochemical cycling of Br between organic and inorganic forms as part of the burial and degradation of NOM. These findings illuminate the chemistry behind the association of Br with Corg in marine sediments and cast doubt on the paradigmatic classification of Br as a conservative element in seawater systems.

A Leri; J Hakala; M Marcus; A Lanzirotti; C Reddy; S Myneni

2011-12-31T23:59:59.000Z

106

QUESTIONS ABOUT GLOBAL WARMING  

E-Print Network [OSTI]

QUESTIONS ABOUT GLOBAL WARMING ¬•IS IT REAL? ¬•IS IT IMPORTANT? ¬•WHAT IS IT DUE TO? ¬•HOW MUCH MORE in the atmosphere, giving Earth its temperate climate. Global Atmosphere, Global Warming GLOBAL TEMPERATURE TREND√?t a cure for global warming! Aerosols only last a short while in the atmosphere, they would have

107

Modelling climate-related variability of tuna populations from a coupled ocean-biogeochemical-populations dynamics model  

E-Print Network [OSTI]

pelamis) and yellowfin (Thunnus albacares) had higher recruitments during El Ni√Īo events, the sub of skipjack (Katsuwonus pelamis) population (Lehodey, 1997). However, the run represented a short time

Maine, University of

108

Simulation of annual biogeochemical cycles of nutrient balance, phytoplankton bloom(s), and DO in Puget Sound using an unstructured grid model  

SciTech Connect (OSTI)

Nutrient pollution from rivers, nonpoint source runoff, and nearly 100 wastewater discharges is a potential threat to the ecological health of Puget Sound with evidence of hypoxia in some basins. However, the relative contributions of loads entering Puget Sound from natural and anthropogenic sources, and the effects of exchange flow from the Pacific Ocean are not well understood. Development of a quantitative model of Puget Sound is thus presented to help improve our understanding of the annual biogeochemical cycles in this system using the unstructured grid Finite Volume Coastal Ocean Model (FVCOM) framework and the Integrated Compartment Model (CE QUAL-ICM) water quality kinetics. Results based on 2006 data show that phytoplankton growth and die-off, succession between two species of algae, nutrient dynamics, and dissolved oxygen in Puget Sound are strongly tied to seasonal variation of temperature, solar radiation, and the annual exchange and flushing induced by upwelled Pacific Ocean waters. Concentrations in the mixed outflow surface layer occupying approximately 5?20 m of the upper water column show strong effects of eutrophication from natural and anthropogenic sources, spring and summer algae blooms, accompanied by depleted nutrients but high dissolved oxygen levels. The bottom layer reflects dissolved oxygen and nutrient concentrations of upwelled Pacific Ocean water modulated by mixing with biologically active surface outflow in the Strait of Juan De Fuca prior to entering Puget Sound over the Admiralty Inlet. The effect of reflux mixing at the Admiralty Inlet sill resulting in lower nutrient and higher dissolved oxygen levels in bottom waters of Puget Sound than the incoming upwelled Pacific Ocean water is reproduced. By late winter, with the reduction in algal activity, water column constituents of interest, were renewed and the system appeared to reset with cooler temperature, higher nutrient, and higher dissolved oxygen waters from the Pacific Ocean.

Khangaonkar, Tarang; Sackmann, Brandon S.; Long, Wen; Mohamedali, Teizeen; Roberts, Mindy

2012-08-14T23:59:59.000Z

109

Influences on the oceanic biogeochemical cycling of the hybrid-type metals, cobalt, iron, and manganese  

E-Print Network [OSTI]

Trace metal cycling is one of many processes that influence ocean ecosystem dynamics. Cobalt, iron, and manganese are redox active trace metal micro-nutrients with oceanic distributions that are influenced by both biological ...

Noble, Abigail Emery

2012-01-01T23:59:59.000Z

110

Global Health Seminar Series  

E-Print Network [OSTI]

Bay Area Global Health Seminar Series Moving beyond millennium targets in global health: The challenges of investing in health and universal health coverage Although targets can help to focus global health efforts, they can also detract attention from deeper underlying challenges in global health

Klein, Ophir

111

Global Warming Observations  

E-Print Network [OSTI]

Global Warming Observations: 1. Global temperature has been gradually rising in recent years #15 in range 8000 12000 nm { CFC's, methane and N 2 O important for global warming even though concentra- tions in concentration of \\greenhouse gases" like CO 2 What determines global temperature? Energy budget of earth: 1

Schofield, Jeremy

112

GLOBAL DYNAMICS OF SUBSURFACE SOLAR ACTIVE REGIONS  

SciTech Connect (OSTI)

We present three-dimensional numerical simulations of a magnetic loop evolving in either a convectively stable or unstable rotating shell. The magnetic loop is introduced into the shell in such a way that it is buoyant only in a certain portion in longitude, thus creating an {Omega}-loop. Due to the action of magnetic buoyancy, the loop rises and develops asymmetries between its leading and following legs, creating emerging bipolar regions whose characteristics are similar to those of observed spots at the solar surface. In particular, we self-consistently reproduce the creation of tongues around the spot polarities, which can be strongly affected by convection. We further emphasize the presence of ring-shaped magnetic structures around our simulated emerging regions, which we call 'magnetic necklace' and which were seen in a number of observations without being reported as of today. We show that those necklaces are markers of vorticity generation at the periphery and below the rising magnetic loop. We also find that the asymmetry between the two legs of the loop is crucially dependent on the initial magnetic field strength. The tilt angle of the emerging regions is also studied in the stable and unstable cases and seems to be affected both by the convective motions and the presence of a differential rotation in the convective cases.

Jouve, L. [UPS-OMP, Institut de Recherche en Astrophysique et Planetologie, Universite de Toulouse CNRS, 14 Avenue Edouard Belin, F-31400 Toulouse (France)] [UPS-OMP, Institut de Recherche en Astrophysique et Planetologie, Universite de Toulouse CNRS, 14 Avenue Edouard Belin, F-31400 Toulouse (France); Brun, A. S. [Laboratoire AIM, CEA/DSM-CNRS-Universite Paris Diderot, IRFU/SAp, F-91191 Gif sur Yvette (France)] [Laboratoire AIM, CEA/DSM-CNRS-Universite Paris Diderot, IRFU/SAp, F-91191 Gif sur Yvette (France); Aulanier, G., E-mail: ljouve@irap.omp.eu [LESIA, Observatoire de Paris, CNRS, UPMC, Universite Paris-Diderot, 5 Place Jules Janssen, F-92190 Meudon Cedex (France)

2013-01-01T23:59:59.000Z

113

Quantitative laboratory measurements of biogeochemical processes controlling biogenic calcite carbon sequestration.  

SciTech Connect (OSTI)

The purpose of this LDRD was to generate data that could be used to populate and thereby reduce the uncertainty in global carbon cycle models. These efforts were focused on developing a system for determining the dissolution rate of biogenic calcite under oceanic pressure and temperature conditions and on carrying out a digital transcriptomic analysis of gene expression in response to changes in pCO2, and the consequent acidification of the growth medium.

Zendejas, Frank; Lane, Todd W.; Lane, Pamela D.

2011-01-01T23:59:59.000Z

114

Applying Global Optimization in Structural Engineering  

E-Print Network [OSTI]

structure Dynamic loading Challenges "Dwarfing visitors, the 70-foot-tall Corliss steam engine powered steam engine in the world. Of engines like the Corliss, William Dean Howells wrote, 'In these thingsApplying Global Optimization in Structural Engineering Dr. George F. Corliss Electrical

115

IBM Global Technology Services January 2008  

E-Print Network [OSTI]

IBM Global Technology Services January 2008 How service-oriented architecture (SOA) impacts your IT infrastructure Satisfying the demands of dynamic business processes #12;How service-oriented architecture (SOA service-oriented architecture (SOA) and how it holds the promises of quicker response to market trends

116

Rangeland ecology: Key global research issues & questions  

E-Print Network [OSTI]

1 Rangeland ecology: Key global research issues & questions Robin Reid and Maria Fernandez-Gimenez This paper discusses developments in our understanding about rangeland ecology and rangeland dynamics in the last 20 years. Before the late 1980's, the mainstream view in range ecology was that livestock

117

Globalization of biopharmaceutical manufacturing  

E-Print Network [OSTI]

The biomanufacturing industry is changing due to increasing globalization. However, it is changing differently from other high tech industries like software/ semiconductor/ automobiles. In this study we use global ...

Pande, Rachna

2011-01-01T23:59:59.000Z

118

Nonsingular static global string  

E-Print Network [OSTI]

A new solution for the spacetime outside the core of a U(1) static global string has been presented which is nonsingular. This is the first example of a nonsingular spacetime around a static global string.}}

A. A. Sen; N. Banerjee

2000-04-12T23:59:59.000Z

119

Review: Globalization of Water  

E-Print Network [OSTI]

Review: Globalization of Water: Sharing the PlanetísAshok K. Globalization of Water: Sharing the Planetís140) liters of virtual water (p. 15). This is one of the

Tennant, Matthew Aaron

2009-01-01T23:59:59.000Z

120

Global Environmental Course Title  

E-Print Network [OSTI]

Department Global Environmental Studies Room Course Title Frontier of Sustainability Science Instructor Akihisa MORI, Global Environmental Studies Satoshi KONISHI, Institute of Advanced consisting from a variety of academic field, including philosophy, politics, economics, energy, architecture

Takada, Shoji

Note: This page contains sample records for the topic "global biogeochemical 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

Cows Causing Global Warming  

E-Print Network [OSTI]

Broadcast Transcript: Remember when President Reagan blamed trees for air pollution? Well now the Japanese are blaming cows for global warming. Apparently, the methane emissions from burping cows account for 5% of all global greenhouse gases. Simple...

Hacker, Randi

2008-08-06T23:59:59.000Z

122

China Economy: Technology, Growth and Global Connections (3 Credits)  

E-Print Network [OSTI]

China Economy: Technology, Growth and Global Connections (3 Credits) Instructor Susan Mays. It examines major trends in the economy and society, including trends in income, the workforce, trade, foreign, drivers, and challenges in China's unique and dynamic economy, in a global context. Topics 1. China

123

Global Biogeochemistry Models and Global Carbon Cycle Research at Lawrence Livermore National Laboratory  

SciTech Connect (OSTI)

The climate modeling community has long envisioned an evolution from physical climate models to ''earth system'' models that include the effects of biology and chemistry, particularly those processes related to the global carbon cycle. The widely reproduced Box 3, Figure 1 from the 2001 IPCC Scientific Assessment schematically describes that evolution. The community generally accepts the premise that understanding and predicting global and regional climate change requires the inclusion of carbon cycle processes in models to fully simulate the feedbacks between the climate system and the carbon cycle. Moreover, models will ultimately be employed to predict atmospheric concentrations of CO{sub 2} and other greenhouse gases as a function of anthropogenic and natural processes, such as industrial emissions, terrestrial carbon fixation, sequestration, land use patterns, etc. Nevertheless, the development of coupled climate-carbon models with demonstrable quantitative skill will require a significant amount of effort and time to understand and validate their behavior at both the process level and as integrated systems. It is important to consider objectively whether the currently proposed strategies to develop and validate earth system models are optimal, or even sufficient, and whether alternative strategies should be pursued. Carbon-climate models are going to be complex, with the carbon cycle strongly interacting with many other components. Off-line process validation will be insufficient. As was found in coupled atmosphere-ocean GCMs, feedbacks between model components can amplify small errors and uncertainties in one process to produce large biases in the simulated climate. The persistent tropical western Pacific Ocean ''double ITCZ'' and upper troposphere ''cold pole'' problems are examples. Finding and fixing similar types of problems in coupled carbon-climate models especially will be difficult, given the lack of observations required for diagnosis and validation of biogeochemical processes.

Covey, C; Caldeira, K; Guilderson, T; Cameron-Smith, P; Govindasamy, B; Swanston, C; Wickett, M; Mirin, A; Bader, D

2005-05-27T23:59:59.000Z

124

Design Editorial Globalization and Internationalism  

E-Print Network [OSTI]

; especially, the development of an increasingly integrated global economy marked especially by free tradeJournal of Mechanical Design Editorial Globalization and Internationalism There has always been and Strabo, but to Friedman's empirical observations of globalization. According to Wikipedia, "globalization

Papalambros, Panos

125

INTERNATIONAL RELATIONS &INTERNATIONAL RELATIONS &INTERNATIONAL RELATIONS & THE GLOBAL ECONOMYTHE GLOBAL ECONOMYTHE GLOBAL ECONOMY  

E-Print Network [OSTI]

GLOBAL ECONOMYTHE GLOBAL ECONOMY This major offers students rigorous interdisciplinary training 331: The Global Economy 2030 -- Examination of key ideas from economics, demography and technology. Guest lecturers illuminate possible conditions of the global economy in 2030. IR 454: International

Krylov, Anna I.

126

I N V I T E D R E V I E W Methane emissions from wetlands: biogeochemical,  

E-Print Network [OSTI]

is about a third of total global emissions. We provide a perspective on important new frontiers­72% of the total global flux (Fig. 1, Table S1), with livestock, biomass burning, landfills and other waste manage perspectives from local to global scales S C O T T D . B R I D G H A M * , H I N S B Y C A D I L L O - Q U I R

127

Host/virus interactions in the marine cyanobacterium prochlorococcus  

E-Print Network [OSTI]

Bacterial viruses shape the diversity, metabolic function, and community dynamics of their microbial hosts. As microbes drive many major biogeochemical cycles, viral infection is therefore a phenomenon of global significance. ...

Frois-Moniz, Katya

2014-01-01T23:59:59.000Z

128

Is Arnold diffusion relevant to global diffusion?  

E-Print Network [OSTI]

Global diffusion of Hamiltonian dynamical systems is investigated by using a coupled standard maps. Arnold web is visualized in the frequency space, using local rotation numbers, while Arnold diffusion and resonance overlaps are distinguished by the residence time distributions at resonance layers. Global diffusion in the phase space is shown to be accelerated by diffusion across overlapped resonances generated by the coupling term, rather than Arnold diffusion along the lower-order resonances. The former plays roles of hubs for transport in the phase space, and accelerate the diffusion.

Seiichiro Honjo; Kunihiko Kaneko

2003-07-27T23:59:59.000Z

129

Engineering the global ecosystem  

E-Print Network [OSTI]

of humans deliberately engineering agricultural landscapes.010-0302-8 EDITORIAL Engineering the global ecosystemtale about human explorers engineering the ecosystem of Mars

Stringfellow, William T.; Jain, Ravi

2010-01-01T23:59:59.000Z

130

Global Nuclear Security  

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

Global Nuclear Security Both DOE and the National Nuclear Security Administration are working to reduce the risk of nuclear proliferation and provide technologies to improve...

131

Subsidizing Global Solar Power.  

E-Print Network [OSTI]

?? With national cuts on solar PV subsidies and the current ďoversupplyĒ of panels, the global solar market is clearly threatened by a contraction. Yet,Ö (more)

Arnesson, Daniel

2013-01-01T23:59:59.000Z

132

Perturbation Theory for Population Dynamics  

E-Print Network [OSTI]

We prove that a recently proposed homotopy perturbation method for the treatment of population dynamics is just the Taylor expansion of the population variables about initial time. Our results show that this perturbation method fails to provide the global features of the ecosystem dynamics.

Francisco M. Fernandez

2007-12-20T23:59:59.000Z

133

Quantifying the surface-subsurface biogeochemical coupling during the VERTIGO ALOHA and K2 studies  

SciTech Connect (OSTI)

A central question addressed by the VERTIGO (VERtical Transport In the Global Ocean) study was 'What controls the efficiency of particle export between the surface and subsurface ocean'? Here, we present data from sites at ALOHA (N Central Pacific Gyre) and K2 (NW subarctic Pacific) on phytoplankton processes, and relate them via a simple planktonic foodweb model, to subsurface particle export (150-500 m). Three key factors enable quantification of the surface-subsurface coupling: a sampling design to overcome the temporal lag and spatial displacement between surface and subsurface processes; data on the size-partitioning of Net Primary Production (NPP) and subsequent transformations prior to export; estimates of the ratio of algal- to faecal-mediated vertical export flux. At ALOHA, phytoplankton were characterized by low stocks, NPP, F{sub v}/F{sub m} (N-limited), and were dominated by picoplankton. The HNLC waters at K2 were characterized by both two-fold changes in NPP and floristic shifts (high to low proportion of diatoms) between deployment 1 and 2. Prediction of export exiting the euphotic zone was based on size-partitioning of NPP, a copepod-dominated foodweb and a ratio of 0.2 (ALOHA) and 0.1 (K2) for algal:faecal particle flux. Predicted export was 20-22 mg POC m{sup -2} d{sup -1} at ALOHA (i.e. 10-11% NPP (0-125 m); 1.1-1.2 x export flux at 150 m (E{sub 150}). At K2, export was 111 mg C m{sup -2} d{sup -1} (21% NPP (0-50 m); 1.8 x E{sub 150}) and 33 mg POC m{sup -2} d{sup -1} (11% NPP, 0-55 m); 1.4 x E{sub 150}) for deployments 1 and 2, respectively. This decrease in predicted export at K2 matches the observed trend for E{sub 150}. Also, the low attenuation of export flux from 60 to 150 m is consistent with that between 150 to 500 m. This strong surface-subsurface coupling suggests that phytoplankton productivity and floristics play a key role at K2 in setting export flux, and moreover that pelagic particle transformations by grazers strongly influence to what extent sinking particles are further broken down in the underlying waters of the Twilight Zone.

Boyd, P.W.; Gall, M.P.; Silver, M.W.; Bishop, J.K.B.; Coale, Susan L.; Bidigare, Robert R.

2008-02-25T23:59:59.000Z

134

Global Development Our Responsibility  

E-Print Network [OSTI]

of expertise cover urgent global issues such as food production, energy supply, climate change, biodiversity e ort to address urgent global issues particularly a ecting developing countries e.g. climate change of Communication, 2012 · Project Leader: Karin Nilsson · Graphic Design: Viktor Wrange & Michael Kvick Cover Photo

135

CHILLING CONSIDERATIONS GLOBAL WARMING  

E-Print Network [OSTI]

(millionsofsquarekilometers) 30 20 10 MELTING OF GREENLAND ICE CAP Satellite determination of maximum extent of glacial melt Complete melt of the Greenland ice sheet would raise the level of the global ocean 23 feet. ASAN Steffen IS INCREASING Global carbon dioxide concentration over the last thousand years Polar ice cores #12;Mann et al

Schwartz, Stephen E.

136

Global Change Sustainability  

E-Print Network [OSTI]

Global Change and Sustainability Center The GCSC is an inclusionary and interdisciplinary hub that promotes, coordinates, and conducts local to global environmental- and sustainability-related research to complex environmental and sustainability issues and challenges. 2012 Annual Report #12;1GCSC 2012 ANNUAL

Tipple, Brett

137

Landau gauge condensates from global color model  

E-Print Network [OSTI]

We compute the dimension-2 gluon pair condensate $g^2$ and the dimension-4 mixed quark-gluon condensate $$ in Landau gauge within the framework of global color model. The result for the dynamical gluon mass is within the range given by other independent determinations. The obtained mixed Landau gauge condensate $$ is clearly dependent on the definitions of the condensates. We show that the consistent result may be obtained when the same definitions are used.

Zhao Zhang; Wei-qin Zhao

2006-03-23T23:59:59.000Z

138

Global warming, bad weather, insurance losses and the global economy  

SciTech Connect (OSTI)

Global warming causes extremely bad weather in the near term. The impact on the insurance industry is described. Why global warming in the near term causes very bad weather is explained. The continuing trend of very bad weather and the future impact on the insurance industry is explored. How very bad weather can affect the global financial market is explained. Taking a historical view of the development of the modern economy, the authors describe in the near term the impact of global warming on the global economy. The long term impact of global warming on the global economy and the human race is explored. Opportunities presented by global warming are described.

Low, N.C. [UOB Life Assurance Ltd., Singapore (Singapore); Shen, S. [Global Warming International Center, Woodridge, IL (United States)

1996-09-01T23:59:59.000Z

139

Using complex resistivity imaging to infer biogeochemical processes associated with bioremediation of a uranium-contaminated aquifer  

SciTech Connect (OSTI)

Experiments at the Department of Energyís Rifle Integrated Field Research Challenge (IFRC) site near Rifle, Colorado (USA) have demonstrated the ability to remove uranium from groundwater by stimulating the growth and activity of Geobacter species through acetate amendment. Prolonging the activity of these strains in order to optimize uranium bioremediation has prompted the development of minimally-invasive and spatially-extensive monitoring methods diagnostic of their in situ activity and the end products of their metabolism. Here we demonstrate the use of complex resistivity imaging for monitoring biogeochemical changes accompanying stimulation of indigenous aquifer microorganisms during and after a prolonged period (100+ days) of acetate injection. A thorough raw-data statistical analysis of discrepancies between normal and reciprocal measurements and incorporation of a new power-law phase-error model in the inversion were used to significantly improve the quality of the resistivity phase images over those obtained during previous monitoring experiments at the Rifle IRFC site. The imaging results reveal spatiotemporal changes in the phase response of aquifer sediments, which correlate with increases in Fe(II) and precipitation of metal sulfides (e.g., FeS) following the iterative stimulation of iron and sulfate reducing microorganism. Only modest changes in resistivity magnitude were observed over the monitoring period. The largest phase anomalies (>40 mrad) were observed hundreds of days after halting acetate injection, in conjunction with accumulation of Fe(II) in the presence of residual FeS minerals, reflecting preservation of geochemically reduced conditions in the aquifer Ė a prerequisite for ensuring the long-term stability of immobilized, redox-sensitive contaminants, such as uranium.

Flores-Orozco, Adrian; Williams, Kenneth H.; Long, Philip E.; Hubbard, Susan S.; Kemna, Andreas

2011-07-07T23:59:59.000Z

140

Using complex resistivity imaging to infer biogeochemical processes associated with bioremediation of a uranium-contaminated aquifer  

SciTech Connect (OSTI)

Experiments at the Department of Energy's Rifle Integrated Field Research Challenge (IFRC) site near Rifle, Colorado (USA) have demonstrated the ability to remove uranium from groundwater by stimulating the growth and activity of Geobacter species through acetate amendment. Prolonging the activity of these strains in order to optimize uranium bioremediation has prompted the development of minimally-invasive and spatially-extensive monitoring methods diagnostic of their in situ activity and the end products of their metabolism. Here we demonstrate the use of complex resistivity imaging for monitoring biogeochemical changes accompanying stimulation of indigenous aquifer microorganisms during and after a prolonged period (100+ days) of acetate injection. A thorough raw-data statistical analysis of discrepancies between normal and reciprocal measurements and incorporation of a new power-law phase-error model in the inversion were used to significantly improve the quality of the resistivity phase images over those obtained during previous monitoring experiments at the Rifle IRFC site. The imaging results reveal spatiotemporal changes in the phase response of aquifer sediments, which correlate with increases in Fe(II) and precipitation of metal sulfides (e.g., FeS) following the iterative stimulation of iron and sulfate reducing microorganism. Only modest changes in resistivity magnitude were observed over the monitoring period. The largest phase anomalies (>40 mrad) were observed hundreds of days after halting acetate injection, in conjunction with accumulation of Fe(II) in the presence of residual FeS minerals, reflecting preservation of geochemically reduced conditions in the aquifer - a prerequisite for ensuring the long-term stability of immobilized, redox-sensitive contaminants, such as uranium.

Orozco, A. Flores; Williams, K.H.; Long, P.E.; Hubbard, S.S.; Kemna, A.

2011-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "global biogeochemical 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

China's Global Oil Strategy  

E-Print Network [OSTI]

nations began to seek out oil reserves around the world. 3on the limited global oil reserves and spiking prices. Manyto the largest proven oil reserves, making up 61 percent of

Thomas, Bryan G

2009-01-01T23:59:59.000Z

142

KRFTWRK Ė Global Human Electricity  

E-Print Network [OSTI]

Power Network 2.1.1 Virtual Power Plants The Global Powernetwork, based on "Virtual Power Plants", called "VPP". A "participant runs a virtual human power plant. Per every "

Prohaska, Rainer

2009-01-01T23:59:59.000Z

143

China's Global Oil Strategy  

E-Print Network [OSTI]

21, 2008. Ying, Wang. ď China, Venezuela firms to co-developoilfields. Ē China Daily (27 August 2005) http://David and Bi Jianhai. ďChinaís Global Hunt for Energy. Ē

Thomas, Bryan G

2009-01-01T23:59:59.000Z

144

Global Cool Cities Alliance  

Broader source: Energy.gov [DOE]

The Department of Energy (DOE) is currently supporting the Global Cool Cities Alliance (GCCA), a non-profit organization that works with cities, regions, and national governments to speed the...

145

Global warming elucidated  

SciTech Connect (OSTI)

The meaning of global warming and its relevance to everyday life is explained. Simple thermodynamics is used to predict an oscillatory nature of the change in climate due to global warming. Global warming causes extreme events and bad weather in the near term. In the long term it may cause the earth to transition to another equilibrium state through many oscillation in climatic patterns. The magnitudes of these oscillations could easily exceed the difference between the end points. The author further explains why many no longer fully understands the nature and magnitudes of common phenomena such as storms and wind speeds because of these oscillations, and the absorptive properties of clouds. The author links the increase in duration of the El Nino to global warming, and further predicts public health risks as the earth transitions to another equilibrium state in its young history.

Shen, S. [Global Warming International Center, Woodridge, IL (United States)

1995-03-01T23:59:59.000Z

146

GE Global Research News | GE Global Research  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky Learning Fun with Big SkyDIII-D Performance ToolsGlobal

147

GLOBAL GOVERNANCE FIGHTING POVERTY 26 GLOBAL AGENDA 2003  

E-Print Network [OSTI]

, they would discover a nearly total disparity between global commitments and domestic politics. Bush hasGLOBAL GOVERNANCE FIGHTING POVERTY 26 GLOBAL AGENDA 2003 the world promised to put real resources credible document spelling out the US role in a global war against AIDS. The planned US financial

148

Original article Predicted global warming  

E-Print Network [OSTI]

Original article Predicted global warming and Douglas-fir chilling requirements DD McCreary1 DP to predicted global warming. Douglas-fir / chilling / global warming / bud burst / reforestation R√©sum√© offer evidence that mean global warming of 3-4 ¬įC could occur within the next century, particularly

Boyer, Edmond

149

The Tourism Global Value Chain  

E-Print Network [OSTI]

The Tourism Global Value Chain ECONOMIC UPGRADING AND WORKFORCE DEVELOPMENT Michelle Christian 2011 CENTER on GLOBALIZATION, GOVERNANCE & COMPETITIVENESS #12;The Tourism Global Value Chain: Economic: November 17, 2011 #12;The Tourism Global Value Chain: Economic Upgrading and Workforce Development i Table

Richardson, David

150

Dynamic load balancing of applications  

DOE Patents [OSTI]

An application-level method for dynamically maintaining global load balance on a parallel computer, particularly on massively parallel MIMD computers. Global load balancing is achieved by overlapping neighborhoods of processors, where each neighborhood performs local load balancing. The method supports a large class of finite element and finite difference based applications and provides an automatic element management system to which applications are easily integrated.

Wheat, Stephen R. (Albuquerque, NM)

1997-01-01T23:59:59.000Z

151

Dynamic load balancing of applications  

DOE Patents [OSTI]

An application-level method for dynamically maintaining global load balance on a parallel computer, particularly on massively parallel MIMD computers is disclosed. Global load balancing is achieved by overlapping neighborhoods of processors, where each neighborhood performs local load balancing. The method supports a large class of finite element and finite difference based applications and provides an automatic element management system to which applications are easily integrated. 13 figs.

Wheat, S.R.

1997-05-13T23:59:59.000Z

152

Long range global warming  

SciTech Connect (OSTI)

This paper explores one of the causes of global warming that is often overlooked, the direct heating of the environment by engineering systems. Most research and studies of global warming concentrate on the modification that is occurring to atmospheric air as a result of pollution gases being added by various systems; i.e., refrigerants, nitrogen oxides, ozone, hydrocarbons, halon, and others. This modification affects the thermal radiation balance between earth, sun and space, resulting in a decrease of radiation outflow and a slow rise in the earth`s steady state temperature. For this reason the solution to the problem is perceived as one of cleaning up the processes and effluents that are discharged into the environment. In this paper arguments are presented that suggest, that there is a far more serious cause for global warming that will manifest itself in the next two or three centuries; direct heating from the exponential growth of energy usage by humankind. Because this is a minor contributor to the global warming problem at present, it is overlooked or ignored. Energy use from the combustion of fuels and from the output of nuclear reactions eventually is manifest as warming of the surroundings. Thus, as energy is used at an ever increasing rate the consequent global warming also increases at an ever increasing rate. Eventually this rate will become equal to a few percent of solar radiation. When this happens the earth`s temperature will have risen by several degrees with catastrophic results. The trends in world energy use are reviewed and some mathematical models are presented to suggest future scenarios. These models can be used to predict when the global warming problem will become undeniably apparent, when it will become critical, and when it will become catastrophic.

Rolle, K.C.; Pulkrabek, W.W.; Fiedler, R.A. [Univ. of Wisconsin, Platteville, WI (United States)

1995-12-31T23:59:59.000Z

153

Explicit global integrators  

E-Print Network [OSTI]

be advantageous. For this purpose, forward interpolation utilizing Radau Quadrature will be employed. An explicit method of global integration has been developed to estimate a solution to a differential equation. A set of functions P (x), P (x), , P (x) and a... set of points n+1 x , x , , x can be found such that n+1 r x n+1 f(u)du = g P. (x)i'(x. ) 0 i=1 for all x when f(u) is a polynomial of degree n or less. The above process is described by Axelsson as global integration. In . th the cases...

Merriam, Robert Stevens

2012-06-07T23:59:59.000Z

154

INTERNATIONAL RELATIONSINTERNATIONAL RELATIONSINTERNATIONAL RELATIONS (GLOBAL BUSINESS)(GLOBAL BUSINESS)(GLOBAL BUSINESS)  

E-Print Network [OSTI]

INTERNATIONAL RELATIONSINTERNATIONAL RELATIONSINTERNATIONAL RELATIONS (GLOBAL BUSINESS)(GLOBAL BUSINESS)(GLOBAL BUSINESS) Future leaders in business, government, and law need to understand how global, and internship opportunities, it is an ideal major for those interested in entering the realms of business

Krylov, Anna I.

155

26:478:541 / 26:553:607 Global Political Economy Wednesdays 5:30-8:10 PM  

E-Print Network [OSTI]

26:478:541 / 26:553:607 Global Political Economy Fall 2010 Wednesdays 5:30-8:10 PM Professor Susan economy. In such a world, domestic political and economic dynamics can have global consequences, and events in the global economy can redound to the benefit or detriment of nation states. This course

Lin, Xiaodong

156

Dynamics of multinational rivalry  

E-Print Network [OSTI]

?as the key to carry out global research is identified as a critical moderator of pair wise competitive tensions between MNEs. The competitive dynamics between Toyota and Honda could be quite different from those between Toyota and Volvo. The cultural... similarity may help Toyota and Honda clearly interpret each other?s competitive signals and therefore undertake fast competitive movements. CONTRIBUTION Overall, this dissertation contributes to the literature in the following three ways. First...

Yu, Tieying

2004-11-15T23:59:59.000Z

157

CHILLING CONSIDERATIONS GLOBAL WARMING  

E-Print Network [OSTI]

CHANGE AND ENERGY USE IN TODAY'S WORLD #12;Brookhaven National Laboratory's Speakers' Bureau ∑ Community, Ph.D. Climate Change and Energy Use in Today's World Some Chilling Considerations About Global owned by the U.S. Department of Energy's Office of Science, which provides most of the Lab

Schwartz, Stephen E.

158

Global Lightning Observations  

E-Print Network [OSTI]

;Climatology: Basics ¬∑ 5 years of OTD, 6 years of LIS data ¬∑ Adjusted for detection efficiency J.Atmos. Oc ¬∑ Global flash rate: 45 fl / sec ¬Ī 10% J. Geophys. Res., 2003 #12;High Resolution Full Climatology Annual (4/95-3/00) and LIS (1/98-12/03) instruments #12;#12;#12;Climatology: Diurnal cycle ( Local hour

California at Berkeley, University of

159

global warming's six americas  

E-Print Network [OSTI]

Vehicles & Solar Panels 23 Regulating CO2 as a Pollutant 24 A 20 Percent National Renewable Energy Standard the spring and fall of 2012. Perceived Benefits and Costs of Reducing Fossil Fuel Use and Global Warming Introduction 5 The Six Americas Audience Segments 6 Changes in the Size of Segments 7 Perceived Benefits

Haller, Gary L.

160

Patterns in Global Hydrothermal  

E-Print Network [OSTI]

Patterns in Global Hydrothermal Activity noaa ocean exploration Presenter: Edward T. Baker #12) High-T vents High = hydrothermal discharge Low = active or inactive discharge sites B. Davy, GNS NZ #12 Lc(km) #12;Future Directions Quantify processes: ·Employ or develop new technologies (AUVs, solid

Note: This page contains sample records for the topic "global biogeochemical 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

Global Threat Reduction Initiative  

E-Print Network [OSTI]

Global Threat Reduction Initiative ­ Conversion Program: Reduced Enrichment for Research and Test the dual application of splitting the atom, U.S. policy towards civilian use of highly enriched uranium and test reactors fueled first with low enriched uranium (LEU) and then later with HEU. By the early 1970s

Kemner, Ken

162

Global Health Seminar Series  

E-Print Network [OSTI]

Bay Area Global Health Seminar Series Monday, January 27, 2014 2:30pm ­ 4:00pm (Reception to follow at the Center for Health Policy and the Woods Institute for the Environment. He studies how economic, political, and natural environments affect population health in developing countries using a mix of experimental

Klein, Ophir

163

GLOBAL TAXONOMY INITIATIVE  

E-Print Network [OSTI]

#12;THE GLOBAL TAXONOMY INITIATIVE: Using Systematic Inventories to Meet Country and Regional Needs International #12;Table of Contents Introduction 1 I. Using Inventories to Build Capacity and Advance the GTI 2 for systematic inventories. A major component of the workshop addressed how systematic inventories can serve

Grant, Taran

164

Global Biodiversity Conservation Priorities  

E-Print Network [OSTI]

Global Biodiversity Conservation Priorities T. M. Brooks,1,2,3 * R. A. Mittermeier,1 G. A. B. da is essential to minimize biodiversity loss. To address this need, biodiversity conservation organizations have conservation funding. H uman actions are causing a biodiversity crisis, with species extinction rates up

Wilmers, Chris

165

Global Climate & Catastrophic Risk  

E-Print Network [OSTI]

Global Climate & Catastrophic Risk Forum 2012 A Joint Program with LA RIMS Education Day Rethinking Catastrophic Risk in Risk Management: Earthquake-Related Challenges Featuring: Keynote Speaker Dr. Frank Beuthin, Willis Group Holdings Plc. Yohei Miyamoto, Aon Risk Solutions Curtis deVera, Marsh

de Lijser, Peter

166

U.S. Department of Energy (DOE)--Surface Biogeochemical Research (SBR) 6th Annual PI Meeting: Abstracts  

SciTech Connect (OSTI)

On behalf of the Subsurface Biogeochemical Research (SBR) program managers in the Climate and Environmental Sciences Division (CESD), Office of Biological and Environmental Research (BER), welcome to the 2011 SBR Principal Investigators meeting. Thank you in advance for your attendance and your presentations at this year's meeting. As the events in Japan continue to unfold, we are all reminded that the research we perform on radionuclide behavior in the environment has implications beyond legacy waste cleanup and in fact has its place in the discussion on the expanded use of nuclear power. As in the past, there are three broad objectives to the Principal Investigators meeting: (1) to provide opportunities to share research results and promote interactions among the SBR scientists and other invited guests; (2) to evaluate the progress of each project within the program; and (3) to showcase the scientific expertise and research progress over the past year to senior managers within the DOE Office of Science, the technology offices within DOE, and other invited attendees from other Federal Agencies. This past year has seen a few significant changes within BER and within the SBR program. In November, our Associate Director for BER, Anna Palmisano, retired from Federal service. Just this month, Dr. Sharlene Weatherwax (Division Director for Biological Systems Sciences) has been named as the new Associate Director for BER. In August, BER welcomed Dr. Gary Geernaert as the new Division Director for CESD. Gary joins the division from Los Alamos National Laboratory with a background in atmospheric science. Within the SBR program, a new Strategic Plan was completed last June (currently posted on the SBR and the Office of Science website). The new strategic plan is intended to foster integration within the Environmental Systems Science portion of the BER budget that includes both SBR and Terrestrial Ecosystem Sciences (TES). Both these programs share a goal of advancing a predictive understanding of environmental processes and utilizing iterative, multidisciplinary approaches to understand complex environmental systems of relevance to DOE. CESD in general is undergoing continued discussions on integration among its programs in an effort to develop a new strategic plan for the division. This effort also includes identifying opportunities for integration with BER's Biological Systems Science Division (BSSD). The program this year includes three poster presentation sessions, six plenary sessions, and three breakout sessions. The plenary session on Tuesday morning will feature introductory presentations by BER program staff and three keynote addresses from Dr. Ken Bencala (USGS), Dr. Michael (Mick) Follows (MIT) and Dr. Sue Brantley (PSU) that will lead into three breakout sessions Tuesday afternoon. The breakout sessions are intended to highlight key developments in SBR research and foster a dialog among session participants on scientific paths forward in each particular area. The SBR program managers are asking for input from the SBR community at these sessions to help guide future efforts and/or identify areas of integration within BER programs. On Wednesday, plenary sessions will continue in the morning, followed by an early afternoon poster session. After an extended break for lunch, plenary sessions will continue in the afternoon, followed by an evening poster session. Thursday's plenary session will focus on selected highlights of research efforts at the IFRC sites and on a new potential TES field effort in the Arctic. This new field site is an obvious point of integration between the SBR and TES programs.

Hazen Ed., T.C.

2011-04-11T23:59:59.000Z

167

Global interrupt and barrier networks  

DOE Patents [OSTI]

A system and method for generating global asynchronous signals in a computing structure. Particularly, a global interrupt and barrier network is implemented that implements logic for generating global interrupt and barrier signals for controlling global asynchronous operations performed by processing elements at selected processing nodes of a computing structure in accordance with a processing algorithm; and includes the physical interconnecting of the processing nodes for communicating the global interrupt and barrier signals to the elements via low-latency paths. The global asynchronous signals respectively initiate interrupt and barrier operations at the processing nodes at times selected for optimizing performance of the processing algorithms. In one embodiment, the global interrupt and barrier network is implemented in a scalable, massively parallel supercomputing device structure comprising a plurality of processing nodes interconnected by multiple independent networks, with each node including one or more processing elements for performing computation or communication activity as required when performing parallel algorithm operations. One multiple independent network includes a global tree network for enabling high-speed global tree communications among global tree network nodes or sub-trees thereof. The global interrupt and barrier network may operate in parallel with the global tree network for providing global asynchronous sideband signals.

Blumrich, Matthias A. (Ridgefield, CT); Chen, Dong (Croton-On-Hudson, NY); Coteus, Paul W. (Yorktown Heights, NY); Gara, Alan G. (Mount Kisco, NY); Giampapa, Mark E (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Kopcsay, Gerard V. (Yorktown Heights, NY); Steinmacher-Burow, Burkhard D. (Mount Kisco, NY); Takken, Todd E. (Mount Kisco, NY)

2008-10-28T23:59:59.000Z

168

The Carnal Global Sex for Sale on the Global Market  

E-Print Network [OSTI]

The Carnal Global Economy: Sex for Sale on the Global Market Sarah Gormady POLT 762 Spring 2009 #12;Human Trafficking is: Process + Way/Means + Goal A Global Free Market James Tassie #12;Commonwealth Queens Brothel Total Monthly Revenue $72,480 Total Operating Expenses $21,780 Gross Profit $50

New Hampshire, University of

169

Global minimization of rational functions using semidefinite programming  

E-Print Network [OSTI]

) with p and q relatively prime. We will consider the optimization problem: p := inf xS p(x) q(x) where prime. We will consider the optimization problem: p := inf xS p(x) q(x) where S is the semi.); · stability analysis of certain dynamical systems, including biochemical reactor models. Global minimization

Neumaier, Arnold

170

Simulated Impacts of Global Warming on Building Thermal Loads Throughout the 21st Century  

E-Print Network [OSTI]

Dynamics Laboratory (NOAA) handptright GISS ? Goddard Institute for Space Studies (NASA) handptright NCDC ? National Climate Data Center handptright NOAA ? National Oceanic & Atmospheric Association. Global warming web sites NOAA (National Oceanic...

Degelman, L.

171

Enterprise design for dynamic complexity : architecting & engineering organizations using system & structural dynamics  

E-Print Network [OSTI]

As the business world is neither linear nor static, the mastery of its "chaotic" nonlinear dynamics lies at the heart of finding high-leverage policies that return uncommon benefits for marginal costs. Today's global ...

Piepenbrock, Theodore F. (Theodore Frederick), 1965-

2004-01-01T23:59:59.000Z

172

Investigation of coastal dynamics of the Antarctic Ice Sheet using sequential Radarsat SAR images  

E-Print Network [OSTI]

Increasing human activities have brought about a global warming trend, and cause global sea level rise. Investigations of variations in coastal margins of Antarctica and in the glacial dynamics of the Antarctic Ice Sheet provide useful diagnostic...

Tang, Sheng-Jung

2009-05-15T23:59:59.000Z

173

Global climate feedbacks  

SciTech Connect (OSTI)

The important physical, chemical, and biological events that affect global climate change occur on a mesoscale -- requiring high spatial resolution for their analysis. The Department of Energy has formulated two major initiatives under the US Global Change Program: ARM (Atmospheric Radiation Measurements), and CHAMMP (Computer Hardware Advanced Mathematics and Model Physics). ARM is designed to use ground and air-craft based observations to document profiles of atmospheric composition, clouds, and radiative fluxes. With research and models of important physical processes, ARM will delineate the relationships between trace gases, aerosol and cloud structure, and radiative transfer in the atmosphere, and will improve the parameterization of global circulation models. The present GCMs do not model important feedbacks, including those from clouds, oceans, and land processes. The purpose of this workshop is to identify such potential feedbacks, to evaluate the uncertainties in the feedback processes (and, if possible, to parameterize the feedback processes so that they can be treated in a GCM), and to recommend research programs that will reduce the uncertainties in important feedback processes. Individual reports are processed separately for the data bases.

Manowitz, B.

1990-10-01T23:59:59.000Z

174

Global residential appliance standards  

SciTech Connect (OSTI)

In most countries, residential electricity consumption typically ranges from 20% to 40% of total electricity consumption. This energy is used for heating, cooling, refrigeration and other end-uses. Significant energy savings are possible if new appliance purchases are for models with higher efficiency than that of existing models. There are several ways to ensure or encourage such an outcome, for example, appliance rebates, innovative procurement, and minimum efficiency standards. This paper focuses on the latter approach. At the present time, the US is the only country with comprehensive appliance energy efficiency standards. However, many other countries, such as Australia, Canada, the European Community (EC), Japan and Korea, are considering enacting standards. The greatest potential impact of minimum efficiency standards for appliances is in the developing countries (e.g., China and India), where saturations of household appliances are relatively low but growing rapidly. This paper discusses the potential savings that could be achieved from global appliance efficiency standards for refrigerators and freezers. It also could be achieved from global appliance efficiency standards for refrigerators and freezers. It also discusses the impediments to establishing common standards for certain appliance types, such as differing test procedures, characteristics, and fuel prices. A methodology for establishing global efficiency standards for refrigerators and freezers is described.

Turiel, I.; McMahon, J.E. (Lawrence Berkeley Lab., CA (United States)); Lebot, B. (Agence Francaise pour la Maitrise de l'Energie, Valbonne (France))

1993-03-01T23:59:59.000Z

175

Is an Alternative Globalization Possible?  

E-Print Network [OSTI]

Global Democracy. 94. Amartya Sen, Development as Freedom (trump card. Recently, Amartya Senís ďcapability approachĒ 94

Evans, Peter

2009-01-01T23:59:59.000Z

176

Distributed Termination Detection for Dynamic Systems  

E-Print Network [OSTI]

Distributed Termination Detection for Dynamic Systems D. M. Dhamdhere \\Lambda Sridhar R. Iyer E for detecting the termination of a dis­ tributed computation is presented. The algorithm does not require global are provided. Keywords Distributed algorithms, Distributed computation, Distributed termination, Dynamic

Dhamdhere, Dhananjay Madhav

177

Globalization, Labor, Transformation of Work  

E-Print Network [OSTI]

in an Increasingly Global Economy Edited by Jonathan H. Westover THE ORGANISATION #12;First published in Australia in an increasingly global economy Jonathan H. Westover (editor) Bibliography. 978 1 86335 660 2 (pbk.) 978 1 86335 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Economic Globalization and Caribbean Economies, Syed H. Akhter, Paul Pounder

178

GLOBAL WARMING THE GREENHOUSE EFFECT  

E-Print Network [OSTI]

GLOBAL WARMING THE GREENHOUSE EFFECT AND YOUR FAMILY'S CONTRIBUTION TO IT Stephen E. Schwartz GREENHOUSE EFFECT #12;GLOBAL ENERGY BALANCE Global and annual average energy fluxes in watts per square meter about it.But nobody does anything about it. ­ Mark Twain­ Mark Twain Now with the greenhouse effect, we

Schwartz, Stephen E.

179

Global Warming: Connecting the Dots  

E-Print Network [OSTI]

Global Warming: Connecting the Dots from Causes to Solutions* Jim Hansen 26 February 2007 National://www.columbia.edu/~jeh1/worldwatch_nov2006.pdf) 5. Communicating dangers and opportunities in global warming, Amer-16, 2006. (http://pubs.giss.nasa.gov/docs/2006/2006_Hansen.pdf) 8. Global warming: Connecting the dots from

Hansen, James E.

180

4, 10591092, 2007 Global warming  

E-Print Network [OSTI]

BGD 4, 1059­1092, 2007 Global warming potential of agro-ecosystems S. Lehuger et al. Title Page Predicting the global warming potential of agro-ecosystems S. Lehuger, B. Gabrielle, E. Larmanou, P. Laville Correspondence to: S. Lehuger (simon.lehuger@grignon.inra.fr) 1059 #12;BGD 4, 1059­1092, 2007 Global warming

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "global biogeochemical 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

Agricultural Sciences for Global Development  

E-Print Network [OSTI]

's areas of expertise cover other urgent global issues such as energy supply, climate change, biodiversity, like food security and climate change, are truly global. The global arena is changing fast therefore and the environment in developing countries. Our research is conducted in close cooperation with partners in a large

182

Thinking about global climate change  

SciTech Connect (OSTI)

Opinions regarding issues related to global climate change are presented. The focus is on socioeconomic and historical aspects. World War II is discussed as an intellectual and emotional turning point in global issues, and global climate change is identified as a possible turning point of similar significance. Political, scientific, and public points of view regarding the issue are discussed.

Russell, M. [Univ. of Tennessee, Knoxville, TN (United States); [Oak Ridge National Lab., TN (United States)

1992-12-31T23:59:59.000Z

183

A Network of Complementary SMEs for a Global Infrastructure for Services: the Example of  

E-Print Network [OSTI]

, département G2I/OMSI, 158 cours Fauriel, 42023 Saint Etienne Cedex2, France Abstract. High-technology SMEsA Network of Complementary SMEs for a Global Infrastructure for Services: the Example much need the diversity and the dynamics of SMEs to provide service packages within a global

Paris-Sud XI, Université de

184

Heat Waves, Global Warming, and Mitigation  

E-Print Network [OSTI]

Heat Waves, Global Warming, and Mitigation Ann E. Carlson*2008]HEAT WAVES, GLOBAL WARMING, AND MITIGATION 175 stroke2001). 2008]HEAT WAVES, GLOBAL WARMING, AND MITIGATION 177

Carlson, Ann E.

2008-01-01T23:59:59.000Z

185

Global Warming, endogenous risk and irreversibility  

E-Print Network [OSTI]

The economics of global warming, Institute for InternationalEconomic Models of Global Warming, Cambridge, Mass. MITstochastic losses from global warming, Risk Analysis 16(2):

Fisher, Anthony C.; Narain, Urvashi

2002-01-01T23:59:59.000Z

186

Timeline | GE Global Research  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest RegionatSearchScheduled System BurstLong TermScience&Time-ResolvedGlobal

187

The Global Energy Challenge  

ScienceCinema (OSTI)

The expected doubling of global energy demand by 2050 challenges our traditional patterns of energy production, distribution and use.†† The continued use of fossil fuels raises concerns about supply, security, environment and climate.† New routes are needed for the efficient conversion of energy from chemical fuel, sunlight, and heat to electricity or hydrogen as an energy carrier and finally to end uses like transportation, lighting, and heating. Opportunities for efficient new energy conversion routes based on nanoscale materials will be presented, with emphasis on the sustainable energy technologies they enable.

George Crabtree

2010-01-08T23:59:59.000Z

188

Sandia National Laboratories: Global  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik Spoerke SSLS Exhibit at ExploraGlobal Sandia Co-Hosts "Climate Risk

189

Sandia National Laboratories: Global  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik Spoerke SSLS Exhibit at ExploraGlobal Sandia Co-Hosts "Climate

190

Aspen Global Change Institute Summer Science Sessions  

SciTech Connect (OSTI)

The Aspen Global Change Institute (AGCI) successfully organized and convened six interdisciplinary meetings over the course of award NNG04GA21G. The topics of the meetings were consistent with a range of issues, goals and objectives as described within the NASA Earth Science Enterprise Strategic Plan and more broadly by the US Global Change Research Program/Our Changing Planet, the more recent Climate Change Program Strategic Plan and the NSF Pathways report. The meetings were chaired by two or more leaders from within the disciplinary focus of each session. 222 scholars for a total of 1097 participants-days were convened under the auspices of this award. The overall goal of each AGCI session is to further the understanding of Earth system science and global environmental change through interdisciplinary dialog. The format and structure of the meetings allows for presentation by each participant, in-depth discussion by the whole group, and smaller working group and synthesis activities. The size of the group is important in terms of the group dynamics and interaction, and the ability for each participant's work to be adequately presented and discussed within the duration of the meeting, while still allowing time for synthesis

Katzenberger, John; Kaye, Jack A

2006-10-01T23:59:59.000Z

191

Global tree network for computing structures enabling global processing operations  

DOE Patents [OSTI]

A system and method for enabling high-speed, low-latency global tree network communications among processing nodes interconnected according to a tree network structure. The global tree network enables collective reduction operations to be performed during parallel algorithm operations executing in a computer structure having a plurality of the interconnected processing nodes. Router devices are included that interconnect the nodes of the tree via links to facilitate performance of low-latency global processing operations at nodes of the virtual tree and sub-tree structures. The global operations performed include one or more of: broadcast operations downstream from a root node to leaf nodes of a virtual tree, reduction operations upstream from leaf nodes to the root node in the virtual tree, and point-to-point message passing from any node to the root node. The global tree network is configurable to provide global barrier and interrupt functionality in asynchronous or synchronized manner, and, is physically and logically partitionable.

Blumrich; Matthias A. (Ridgefield, CT); Chen, Dong (Croton-On-Hudson, NY); Coteus, Paul W. (Yorktown Heights, NY); Gara, Alan G. (Mount Kisco, NY); Giampapa, Mark E. (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Hoenicke, Dirk (Ossining, NY); Steinmacher-Burow, Burkhard D. (Mount Kisco, NY); Takken, Todd E. (Mount Kisco, NY); Vranas, Pavlos M. (Bedford Hills, NY)

2010-01-19T23:59:59.000Z

192

Solar wind driving of magnetospheric ULF waves: Field line resonances driven by dynamic pressure fluctuations  

E-Print Network [OSTI]

Solar wind driving of magnetospheric ULF waves: Field line resonances driven by dynamic pressure observational studies suggest that solar wind dynamic pressure fluctuations can drive magnetosphericFedderMobarry (LFM) global, threedimensional magnetohydrodynamic (MHD) simulations of the solar wind

193

Global Studies Course List Fall 2010 (2111) COURSE LIST  

E-Print Network [OSTI]

...........................................................................5 2. Global Economy and Global Governance .................................................9 3 from one of six Global Concentrations (Sustainable Development; Global Economy and Global GovernanceGlobal Studies Course List ≠ Fall 2010 (2111) Page 1 COURSE LIST Fall 2010 (2111) Global Studies

Jiang, Huiqiang

2111-01-01T23:59:59.000Z

194

Global Scratch Upgrade in Progress  

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

the facility is now positioned to meet the performance demands of all its clusters. By upgrading the consolidated Global Scratch, users will be able to continue taking advantage...

195

Environmental Regulation, Globalization, and Innovation  

E-Print Network [OSTI]

This essay explores the complex relationship between environmental regulation, innovation, and sustainable development within the context of an increasingly globalizing economy. It will be argued that industrial policy, ...

Ashford, Nicholas

2009-01-01T23:59:59.000Z

196

Machine Learning for Global Optimization  

E-Print Network [OSTI]

Noname manuscript No. (will be inserted by the editor). Machine Learning for Global Optimization. A. Cassioli?. ∑ D. Di Lorenzo. ?. ∑ M. Locatelli. ??. ∑ F. Schoen.

schoen,,,

197

CLIMATE CHANGE GLOBAL ECONOMY How to decarbonise the global economy  

E-Print Network [OSTI]

CLIMATE CHANGE · GLOBAL ECONOMY How to decarbonise the global economy Today's report on deep efforts of independent experts from 15 countries to find national pathways to making economies based-zero emissions sometime in the second half of this century. This deep cut should occur in a growing world economy

198

GLOBAL IMPACT FROM THE HEART  

E-Print Network [OSTI]

GLOBAL IMPACT FROM THE HEART OF NORTHERN IRELAND #12;A first-class student experience in world-CLASS 18 CONTACT 26 CONTENTS 3GLOBAL IMPACT FROM THE HEART OF NORTHERN IRELAND #12;Queen's is a powerhouse THE HEART OF NORTHERN IRELANDGLOBAL IMPACT FROM THE HEART OF NORTHERN IRELAND CHANCELLOR'S WELCOME

Paxton, Anthony T.

199

RENEWABLES 2005 GLOBAL STATUS REPORT  

E-Print Network [OSTI]

RENEWABLES 2005 GLOBAL STATUS REPORT Paper prepared for the REN21 Network by The Worldwatch Institute Lead Author: Eric Martinotwww.ren21.net #12;Renewable Energy Policy Network for the 21st Century REN21 is a global policy network aimed at providing a forum for international leadership on renewable

Kammen, Daniel M.

200

GLOBAL IMPACT FROM THE HEART  

E-Print Network [OSTI]

GLOBAL IMPACT FROM THE HEART OF NORTHERN IRELAND #12;#12;CHANCELLOR'S WELCOME 4 VICE: INNOVATIVE AND WORLD-CLASS 18 CONTACT 26 CONTENTS 3GLOBAL IMPACT FROM THE HEART OF NORTHERN IRELAND #12;Queen THE HEART OF NORTHERN IRELANDGLOBAL IMPACT FROM THE HEART OF NORTHERN IRELAND CHANCELLOR'S WELCOME

M√ľller, Jens-Dominik

Note: This page contains sample records for the topic "global biogeochemical 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

GLOBAL WARMING THE GREENHOUSE EFFECT  

E-Print Network [OSTI]

GLOBAL WARMING THE GREENHOUSE EFFECT AND YOUR FAMILY'S CONTRIBUTION TO IT Stephen E. Schwartz September 22, 2004 http://www.ecd.bnl.gov/steve/schwartz.html #12;#12;THE GREENHOUSE EFFECT #12;GLOBAL does anything about it. ­ Mark Twain­ Mark Twain Now with the greenhouse effect, we ARE doing something

Schwartz, Stephen E.

202

Fractal diffusion coefficient from dynamical zeta functions  

E-Print Network [OSTI]

Dynamical zeta functions provide a powerful method to analyze low dimensional dynamical systems when the underlying symbolic dynamics is under control. On the other hand even simple one dimensional maps can show an intricate structure of the grammar rules that may lead to a non smooth dependence of global observable on parameters changes. A paradigmatic example is the fractal diffusion coefficient arising in a simple piecewise linear one dimensional map of the real line. Using the Baladi-Ruelle generalization of the Milnor-Thurnston kneading determinant we provide the exact dynamical zeta function for such a map and compute the diffusion coefficient from its smallest zero.

G. Cristadoro

2005-09-28T23:59:59.000Z

203

Dynamics of Evolution in the Global Fuel-Ethanol Industry  

E-Print Network [OSTI]

and background in television receiver industry. The second driving force is security of supply. There are two important supply points along the value chain - supply of feedstock for ethanol production and supply of ethanol for gasoline blending... some evidence of increasing vertical integration. Table 1: Biofuel Policy and Blending Segments in Four Major Countries/Region 5 E denotes ethanol. E5 is a fuel with 5% ethanol content in gasoline...

Chan, Jin Hooi; Reiner, David

204

Dynamics of Regulatory Change: How Globalization Affects National Regulatory Policies  

E-Print Network [OSTI]

by the international scrap metal industry and its national/73 The waste and scrap metal industries have been heavily

Vogel, David; Kagan, Robert A.

2002-01-01T23:59:59.000Z

205

Global Energy Management System Implementation: General Dynamics Case Study  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject: Guidance forGeospatialSession)Shop Floor to Topand6,

206

ORNL's Urban Dynamics Institute joins global fight against polio |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the ContributionsArms ControlChris Samoray Communications 865.241.0709 ORNL's

207

Gravitational waves from global second order phase transitions  

SciTech Connect (OSTI)

Global second-order phase transitions are expected to produce scale-invariant gravitational wave spectra. In this manuscript we explore the dynamics of a symmetry-breaking phase transition using lattice simulations. We explicitly calculate the stochastic gravitational wave background produced during the transition and subsequent self-ordering phase. We comment on this signal as it compares to the scale-invariant spectrum produced during inflation.

Jr, John T. Giblin [Department of Physics, Kenyon College, 201 North College Rd, Gambier, OH 43022 (United States); Price, Larry R.; Siemens, Xavier; Vlcek, Brian, E-mail: giblinj@kenyon.edu, E-mail: larryp@caltech.edu, E-mail: siemens@gravity.phys.uwm.edu, E-mail: bvlcek@uwm.edu [Center for Gravitation and Cosmology, Department of Physics, University of Wisconsin-Milwaukee, P.O. Box 413, Milwaukee, WI 53201 (United States)

2012-11-01T23:59:59.000Z

208

Resisting globalization- ATTAC in France: local discourses, global terrain  

E-Print Network [OSTI]

The debate over the "globalization" process has been influenced by the emergence of social movements who deplore this process. This research focuses on the French social movement ATTAC (Action for a Tobin Tax for the Aid of Citizens...

Leonard, Marie des Neiges

2007-04-25T23:59:59.000Z

209

Global fish production and climate change  

SciTech Connect (OSTI)

Current global fisheries production of {approx}160 million tons is rising as a result of increases in aquaculture production. A number of climate-related threats to both capture fisheries and aquaculture are identified, but there is low confidence in predictions of future fisheries production because of uncertainty over future global aquatic net primary production and the transfer of this production through the food chain to human consumption. Recent changes in the distribution and productivity of a number of fish species can be ascribed with high confidence to regional climate variability, such as the El Nino-Southern Oscillation. Future production may increase in some high-latitude regions because of warming and decreased ice cover, but the dynamics in low-latitude regions are giverned by different processes, and production may decline as a result of reduced vertical mixing of the water column and, hence, reduced recycling of nutrients. There are strong interactions between the effects of fishing and the effects of climate because fishing reduces the age, size, and geographic diversity of populations and the biodiversity of marine ecosystems, making both more sensitive to additional stresses such as climate change. Inland fisheries are additionally threatened by changes in precipiation and water management. The frequency and intensity of extreme climate events is likely to have a major impact on future fisheries production in both inland and marine systems. Reducing fishing mortality in the majority of fisheries, which are currently fully exploited or overexploited, is the pricipal feasible means of reducing the impacts of climate change.

Brander, K.M. [International Council for the Exploration of the Sea, Copenhagen (Denmark)

2007-12-11T23:59:59.000Z

210

Specific Examples of Global Activities Environmental assessment in Azerbaijan  

E-Print Network [OSTI]

, global warming, and global entrepreneurship. Discovery Park works syner- gistically with the Office competitiveness, global energy security, global warming, and global entrepreneurship. Discovery Park worksSpecific Examples of Global Activities · Environmental assessment in Azerbaijan · Study abroad

211

The China-in-Global Energy Model  

E-Print Network [OSTI]

The China-in-Global Energy Model (C-GEM) is a global Computable General Equilibrium (CGE) model that captures the interaction of production, consumption and trade among multiple global regions and sectors Ė including five ...

Qi, T.

212

PARTNERSHIP PROFILE: THE GLOBAL FUND | 1 About the Global Fund to Fight AIDS,  

E-Print Network [OSTI]

grants worth a total of US$29 billion in more than 140 countries. The Global Fund provided 22% of allPARTNERSHIP PROFILE: THE GLOBAL FUND | 1 MARCH 2014 About the Global Fund to Fight AIDS, Tuberculosis and Malaria The Global Fund to Fight AIDS, Tuberculosis and Malaria (Global Fund) is a global

Klein, Ophir

213

Global energy demand to 2060  

SciTech Connect (OSTI)

The projection of global energy demand to the year 2060 is of particular interest because of its relevance to the current greenhouse concerns. The long-term growth of global energy demand in the time scale of climatic change has received relatively little attention in the public discussion of national policy alternatives. The sociological, political, and economic issues have rarely been mentioned in this context. This study emphasizes that the two major driving forces are global population growth and economic growth (gross national product per capita), as would be expected. The modest annual increases assumed in this study result in a year 2060 annual energy use of >4 times the total global current use (year 1986) if present trends continue, and >2 times with extreme efficiency improvements in energy use. Even assuming a zero per capita growth for energy and economics, the population increase by the year 2060 results in a 1.5 times increase in total annual energy use.

Starr, C. (Electric Power Research Institute, Palo Alto, CA (USA))

1989-01-01T23:59:59.000Z

214

Tropospheric chemistry: A global perspective  

E-Print Network [OSTI]

a global Openshaw, K. , Wood fuels the developing world, Newbetween 6 and 40% of wood fuel is converted to charcoalsimilar to that for wood fuel. The source for CO given in

Logan, Jennifer A; Prather, Michael J; Wofsy, Steven C; McElroy, Michael B

1981-01-01T23:59:59.000Z

215

Global Environment Facility Evaluation Office  

E-Print Network [OSTI]

Global Environment Facility Evaluation Office PROTECTED AREAS AND AVOIDED DEFORESTATION #12;Protected Areas and Avoided Deforestation: An Econometric Evaluation - i - TABLE OF CONTENTS 1................................................................................4 3.3 ESTIMATED EFFECTS OF PROTECTED AREAS ON DEFORESTATION

Pfaff, Alex

216

Global optimization in reduced space  

E-Print Network [OSTI]

Optimization is a key activity in any engineering discipline. Global optimization methods, in particular, strive to solve nonconvex problems, which often arise in chemical engineering, and deterministic algorithms such as ...

Wechsung, Achim

2014-01-01T23:59:59.000Z

217

NERSC Calculations Provide Independent Confirmation of Global...  

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

Calculations Provide Independent Confirmation of Global Land Warming Since 1901 NERSC Calculations Provide Independent Confirmation of Global Land Warming Since 1901 September 9,...

218

Complex Dynamics  

E-Print Network [OSTI]

Complex Dynamics Bernardo Da Costa, Koushik Ramachandran, Jingjing Qu, and I had a two semester learning seminar in complex analysis and potential†...

219

"Dark energy" as conformal dynamics of space  

E-Print Network [OSTI]

The exact solution for dynamic of conform-flat space homogeneous since dynamic equation is given. Conform mode of space metric changing in Global time theory has negative energy density. Swap of energy to this mode from another ones lead to increasing of Universe homogeneity although probability of this swap from local objects is negligibly small. Conform mode is corresponding to "dark energy" in observation astronomy.

D. Burlankov

2006-10-23T23:59:59.000Z

220

192 DOI: 10.1111/j.1466-822x.2006.00225.x 2006 Blackwell Publishing Ltd www.blackwellpublishing.com/geb Global Ecology and Biogeography, (Global Ecol. Biogeogr.) (2006) 15, 192199  

E-Print Network [OSTI]

Southern South America, including Argentina, Brazil, Paraguay, Uru- guay, Bolivia and Chile. Methods Based in planetary energy balance and biogeochemical cycles, cloud formation and local and regional precipitation

Nacional de San Luis, Universidad

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "global biogeochemical 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

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 &...

222

A global analysis of soil microbial biomass carbon, nitrogen and phosphorus in terrestrial ecosystems  

SciTech Connect (OSTI)

Soil microbes play a pivotal role in regulating land-atmosphere interactions; the soil microbial biomass carbon (C), nitrogen (N), phosphorus (P) and C:N:P stoichiometry are important regulators for soil biogeochemical processes; however, the current knowledge on magnitude, stoichiometry, storage, and spatial distribution of global soil microbial biomass C, N, and P is limited. In this study, 3087 pairs of data points were retrieved from 281 published papers and further used to summarize the magnitudes and stoichiometries of C, N, and P in soils and soil microbial biomass at global- and biome-levels. Finally, global stock and spatial distribution of microbial biomass C and N in 0-30 cm and 0-100 cm soil profiles were estimated. The results show that C, N, and P in soils and soil microbial biomass vary substantially across biomes; the fractions of soil nutrient C, N, and P in soil microbial biomass are 1.6% in a 95% confidence interval of (1.5%-1.6%), 2.9% in a 95% confidence interval of (2.8%-3.0%), and 4.4% in a 95% confidence interval of (3.9%-5.0%), respectively. The best estimates of C:N:P stoichiometries for soil nutrients and soil microbial biomass are 153:11:1, and 47:6:1, respectively, at global scale, and they vary in a wide range among biomes. Vertical distribution of soil microbial biomass follows the distribution of roots up to 1 m depth. The global stock of soil microbial biomass C and N were estimated to be 15.2 Pg C and 2.3 Pg N in the 0-30 cm soil profiles, and 21.2 Pg C and 3.2 Pg N in the 0-100 cm soil profiles. We did not estimate P in soil microbial biomass due to data shortage and insignificant correlation with soil total P and climate variables. The spatial patterns of soil microbial biomass C and N were consistent with those of soil organic C and total N, i.e. high density in northern high latitude, and low density in low latitudes and southern hemisphere.

Xu, Xiaofeng [ORNL; Thornton, Peter E [ORNL; Post, Wilfred M [ORNL

2013-01-01T23:59:59.000Z

223

Global Cooling: Effect of Urban Albedo on Global Temperature  

SciTech Connect (OSTI)

In many urban areas, pavements and roofs constitute over 60% of urban surfaces (roof 20-25%, pavements about 40%). The roof and the pavement albedo can be increased by about 0.25 and 0.10, respectively, resulting in a net albedo increase for urban areas of about 0.1. Many studies have demonstrated building cooling-energy savings in excess of 20% upon raising roof reflectivity from an existing 10-20% to about 60%. We estimate U.S. potential savings in excess of $1 billion (B) per year in net annual energy bills. Increasing albedo of urban surfaces can reduce the summertime urban temperature and improve the urban air quality. Increasing the urban albedo has the added benefit of reflecting more of the incoming global solar radiation and countering the effect of global warming. We estimate that increasing albedo of urban areas by 0.1 results in an increase of 3 x 10{sup -4} in Earth albedo. Using a simple global model, the change in air temperature in lowest 1.8 km of the atmosphere is estimated at 0.01K. Modelers predict a warming of about 3K in the next 60 years (0.05K/year). Change of 0.1 in urban albedo will result in 0.01K global cooling, a delay of {approx}0.2 years in global warming. This 0.2 years delay in global warming is equivalent to 10 Gt reduction in CO2 emissions.

Akbari, Hashem; Menon, Surabi; Rosenfeld, Arthur

2007-05-22T23:59:59.000Z

224

Case Study #1 "The Global Warming Debate"  

E-Print Network [OSTI]

CHEM 001A Case Study #1 "The Global Warming Debate" Global warming is one of the most contentious issues of our time. There is an ongoing debate about whether global warming is caused by human activity.S., and because the scientific evidence used to determine if global warming is man-made is so difficult

Reed, Christopher A.

225

PRINT ONLY: GLOBAL WARMING Alexeev V. A.  

E-Print Network [OSTI]

PRINT ONLY: GLOBAL WARMING Alexeev V. A. Global Warming: 0.6¬įC or Less? [#1035] The peculiarities of global warming on the Earth during the last century are discussed. Lunar and Planetary Science XXXVIII (2007) full818.pdf #12;GLOBAL WARMING: 0.6 OR LESS? V.A.Alexeev; Vernadsky Institute of Geochemistry

Rathbun, Julie A.

226

Shrinking Global Population: A futuristic scenario  

E-Print Network [OSTI]

global population it will not be a game-changer. #12;Measures for changes in total births 1. TotalShrinking Global Population: A futuristic scenario or a current challenge. Hillel Bar of RSAI - Atlanta November 15, 2013 #12;The evolution of global population Year Global Population

Nagurney, Anna

227

QCD thermodynamics with dynamical overlap fermions  

E-Print Network [OSTI]

We study QCD thermodynamics using two flavors of dynamical overlap fermions with quark masses corresponding to a pion mass of 350 MeV. We determine several observables on N_t=6 and 8 lattices. All our runs are performed with fixed global topology. Our results are compared with staggered ones and a nice agreement is found.

S. Borsanyi; Y. Delgado; S. Durr; Z. Fodor; S. D. Katz; S. Krieg; T. Lippert; D. Nogradi; K. K. Szabo

2012-08-02T23:59:59.000Z

228

Globalization: Ecological Consequences of Global-Scale Connectivity in People,  

E-Print Network [OSTI]

, 2005; Rial et al., 2004). For example, increasing atmospheric CO2 and other greenhouse gases of Agriculture ­ Agricultural Research Service, Las Cruces, New Mexico USA 1. Introduction Globalization). Movement of humans through improved transportation is leading to spread of pests and pathogens

229

Global change: Acronyms and abbreviations  

SciTech Connect (OSTI)

This list of acronyms and abbreviations is compiled to provide the user with a ready reference to dicipher the linguistic initialisms and abridgements for the study of global change. The terms included in this first edition were selected from a wide variety of sources: technical reports, policy documents, global change program announcements, newsletters, and other periodicals. The disciplinary interests covered by this document include agriculture, atmospheric science, ecology, environmental science, oceanography, policy science, and other fields. In addition to its availability in hard copy, the list of acronyms and abbreviations is available in DOS-formatted diskettes and through CDIAC`s anonymous File Transfer Protocol (FTP) area on the Internet.

Woodard, C.T. [Oak Ridge National Lab., TN (United States); Stoss, F.W. [Univ. of Tennessee, Knoxville, TN (United States). Energy, Environment and Resources Center

1995-05-01T23:59:59.000Z

230

Temperature-associated increases in the global soil respiration record  

SciTech Connect (OSTI)

Soil respiration (RS), the flux of CO2 from the soil surface to the atmosphere, comprises the second-largest terrestrial carbon flux, but its dynamics are incompletely understood, and the global flux remains poorly constrained. Ecosystem warming experiments, modelling analyses, and biokinetics all suggest that RS should change with climate. This has been difficult to confirm observationally because of the high spatial variability of RS, inaccessibility of the soil medium, and inability of remote sensing instruments to measure large-scale RS fluxes. Given these constraints, is it possible to discern climate-driven changes in regional or global RS fluxes in the extant four-decade record of RS chamber measurements? Here we use a database of worldwide RS observations, matched with high-resolution historical climate data, to show a previously unknown temporal trend in the RS record after accounting for mean annual climate, leaf area, nitrogen deposition, and changes in CO2 measurement technique. Air temperature anomaly (deviation from the 1961-1990 mean) is significantly and positively correlated with changes in RS fluxes; both temperature and precipitation anomalies exert effects in specific biomes. We estimate that the current (2008) annual global RS flux is 98Ī12 Pg and has increased 0.1 Pg yr-1 over the last 20 years, implying a global RS temperature response (Q10) of 1.5. An increasing global RS flux does not necessarily constitute a positive feedback loop to the atmosphere; nonetheless, the available data are consistent with an acceleration of the terrestrial carbon cycle in response to global climate change.

Bond-Lamberty, Benjamin; Thomson, Allison M.

2010-03-25T23:59:59.000Z

231

Making Globalization Work for Sustainable Human Development The Global Programme Paradigm : A Synthesis Approach  

E-Print Network [OSTI]

the best practices and strategies to manage their integration into the global economy and therefore bringMaking Globalization Work for Sustainable Human Development The Global Programme Paradigm-UNDP Global Programme on Globalization, Liberalization and Sustainable Human Development* Gabriela Tejada

232

A Birkhoff theorem for Shape Dynamics  

E-Print Network [OSTI]

Shape Dynamics is a theory of gravity that replaces refoliation invariance for spatial Weyl invariance. Those solutions of the Einstein equations that have global, constant mean curvature slicings, are mirrored by solutions in Shape Dynamics. However, there are solutions of Shape Dynamics that have no counterpart in General relativity, just as there are solutions of GR that are not completely foliable by global constant mean curvature slicings (such as the Schwarzschild spacetime). It is therefore interesting to analyze directly the equations of motion of Shape Dynamics in order to find its own solutions, irrespective of properties of known solutions of GR. Here I perform a first study in this direction by utilizing the equations of motion of Shape Dynamics in a spherically symmetric, asymptotically flat ansatz to derive an analogue of the Birkhoff theorem. There are two significant differences with respect to the usual Birkhoff theorem in GR. The first regards the construction of the solution: the spatial Weyl gauge freedom of shape dynamics is used to simplify the problem, and boundary conditions are required. In fact the derivation is simpler than the usual Birkhof theorem as no Christoffel symbols are needed. The second, and most important difference is that the solution obtained is uniquely the isotropic wormhole solution, in which no singularity is present, as opposed to maximally extended Schwarzschild. This provides an explicit example of the breaking of the duality between General relativity and Shape Dynamics, and exhibits some of its consequences.

Henrique Gomes

2014-04-02T23:59:59.000Z

233

Conservation and Global Climate Change  

E-Print Network [OSTI]

V.6 Conservation and Global Climate Change Diane M. Debinski and Molly S. Cross OUTLINE 1. Introduction 2. How climate is changing 3. Environmental responses to climate change 4. Consequences of climate the coming decades will be preserving biodiversity in the face of climate change. It has become increasingly

Landweber, Laura

234

RENEWABLES 2007 GLOBAL STATUS REPORT  

E-Print Network [OSTI]

RENEWABLES 2007 GLOBAL STATUS REPORT www.ren21.net #12;Renewable Energy Policy Network for the 21st renewable energy. It provides a forum for leadership and exchange in international policy processes. It bolsters appropriate policies that increase the wise use of renewable energies in developing

Kammen, Daniel M.

235

GLOBAL WOOD SUPPLY Sten Nilsson  

E-Print Network [OSTI]

GLOBAL WOOD SUPPLY Sten Nilsson Biomass and Resource Efficiency: the need for a supply led approach to forest productivity European Parliament, Brussels, 10 November 2011 #12;MEGATREND WOOD SUPPLY ≠ 2020 the trees on the right Source: JP Management Consulting (Asia-Pacific) Ltd., 2006 #12;BAMBOO FOREST Source

236

Workshop report Impact of Global  

E-Print Network [OSTI]

with an emphasis on low-to-middle-income countries 21­23 March 2012 Wellcome Trust, London #12;IMPACT OF GLOBALWorkshop report Impact of Global Environmental Change on Food/Nutrition and Water in Relation ENVIRONMENTAL CHANGE ON FOOD/NUTRITION AND WATER IN RELATION TO HUMAN HEALTH 21­23 March 2012 Wellcome Trust

Rambaut, Andrew

237

Cambio global y polucin atmosfrica  

E-Print Network [OSTI]

pollution and forest ecosystems Atmospheric pollution is referred as a component of global change. The role on the interaction between pollution and climate change. Key words: atmospheric pollution, acidic rain, anatomical anat√≥micos y fisiol√≥gicos, micorrizas, recursos ge- n√©ticos, masas forestales espa√Īolas. Abstract Atmospheric

Espigares, Tíscar

238

7, 38373857, 2007 Global transports  

E-Print Network [OSTI]

and 180 are still transporting into soil and water. It is found that lighter PCBs have more long range international concern with identifying and managing environmentally persistent substances that are bothACPD 7, 3837­3857, 2007 Global transports and budgets of PCBs P. Huang et al. Title Page Abstract

Paris-Sud XI, Université de

239

Global optimization of hybrid systems  

E-Print Network [OSTI]

Systems that exhibit both discrete state and continuous state dynamics are called hybrid systems. In most nontrivial cases, these two aspects of system behavior interact to such a significant extent that they cannot be ...

Lee, Cha Kun

2006-01-01T23:59:59.000Z

240

Cognitive Information Processing, Greece, June 2008 (Haykin) 1 Cognitive Dynamic Systems  

E-Print Network [OSTI]

Cognitive Information Processing, Greece, June 2008 (Haykin) 1 Cognitive Dynamic Systems Simon. What is Cognition? 2. Cognitive Dynamic Systems Defined 3. Emerging Applications 4. Global Feedback 5. Why sub-optimality should be the objective of cognitive dynamic systems? 6. The Bayesian Filter

Haykin, Simon

Note: This page contains sample records for the topic "global biogeochemical 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

``Climate Modelling & Global Change'' scientific report ``Climate Modelling & Global Change'' Team  

E-Print Network [OSTI]

``Climate Modelling & Global Change'' scientific report ``Climate Modelling & Global Change'' Team) : : : : : : : : : : : : : : : : : 6 2.2 Anthropogenic climate change studies: scenario experiments (96) : : : : : : : : : 7 2 following its creation, the ``Climate Modelling & Global Change'' team had to make its proofs in order

242

COLUMBIA ENGINEERING WINTER GLOBAL EDUCATIONAL EXPERIENCE: EXPLORING GLOBAL ENGINEERING WITH CITY UNIVERSITY OF HONG KONG  

E-Print Network [OSTI]

COLUMBIA ENGINEERING WINTER GLOBAL EDUCATIONAL EXPERIENCE: EXPLORING GLOBAL ENGINEERING WITH CITY UNIVERSITY OF HONG KONG JANUARY 7th ­ 15TH , 2012 Program Features The Winter Global Educational Experience is open to Columbia Engineering

Hone, James

243

Final Project Report: "¬?¬?Exploratory Research: Mercury Stable Isotopes as Indicators of the Biogeochemical Cycling of Mercury"¬?¬Ě  

SciTech Connect (OSTI)

This is the final project report for award DE-SC0005351, which supported the research project "¬?¬?Exploratory Research: Mercury Stable Isotopes as Indicators of the Biogeochemical Cycling of Mercury."¬?¬Ě This exploratory project investigated the use of mercury (Hg) stable isotope measurements as a new approach to study how Hg moves and changes its chemical form in environmental systems, with particular focus on the East Fork of Poplar Creek (EFPC) near the DOE Y-12 plant (a Hg contamination source). This study developed analytical methods and collected pilot data that have set the stage for more detailed studies and have begun to provide insights into Hg movement and chemical changes. The overall Hg stable isotope approach was effective. The Hg isotope analysis methods yielded high-precision measurements of the sediment, water, and fish samples analyzed; quality control measures demonstrated the precision. The pilot data show that the 202Hg/198Hg, 199Hg/198Hg, and 201Hg/198Hg isotope ratios vary in this system. 202Hg/198Hg ratios of the Hg released from the Y-12 plant are relatively high, and those of the regional Hg background in soils and river sediments are significantly lower. Unfortunately, 202Hg/198Hg differences that might have been useful to distinguish early Hg releases from later releases were not observed. However, 202Hg/198Hg ratios in sediments do provide insights into chemical transformations that may occur as Hg moves through the system. Furthermore, 199Hg/198Hg and 201Hg/198Hg ratio analyses of fish tissues indicate that the effects of sunlight-driven chemical reactions on the Hg that eventually ends up in EFPC fish are measureable, but small. These results provide a starting point for a more detailed study (already begun at Univ. of Michigan) that will continue Hg isotope ratio work aimed at improving understanding of how Hg moves, changes chemically, and does or does not take on more highly toxic forms in the Oak Ridge area. This work also benefits efforts to trace Hg contamination in the Clinch and Tennessee Rivers, into which EFPC flows, and to distinguish Hg from the Y-12 plant from that released from a nearby coal ash accident.

Johnson, Thomas M

2012-08-01T23:59:59.000Z

244

Perspectives in Global Helioseismology, and the Road Ahead  

E-Print Network [OSTI]

We review the impact of global helioseismology on key questions concerning the internal structure and dynamics of the Sun, and consider the exciting challenges the field faces as it enters a fourth decade of science exploitation. We do so with an eye on the past, looking at the perspectives global helioseismology offered in its earlier phases, in particular the mid-to-late 1970s and the 1980s. We look at how modern, higher-quality, longer datasets coupled with new developments in analysis, have altered, refined, and changed some of those perspectives, and opened others that were not previously available for study. We finish by discussing outstanding challenges and questions for the field.

William J. Chaplin; Sarbani Basu

2008-01-28T23:59:59.000Z

245

ARCS FOUNDATION GLOBAL IMPACT AWARD Global Health, Public Good and Graduate Education  

E-Print Network [OSTI]

ARCS FOUNDATION GLOBAL IMPACT AWARD Global Health, Public Good and Graduate Education Case Foundation Awards Luncheon in Atlanta on November 20, 2014. #12;Application Materials: 1) A letter

Arnold, Jonathan

246

Conceptual understanding of climate change with a globally resolved energy balance model  

E-Print Network [OSTI]

Conceptual understanding of climate change with a globally resolved energy balance model Dietmar on the surface energy balance by very simple repre- sentations of solar and thermal radiation, the atmospheric and cold regions to warm more than other regions. Keywords Climate dynamics √Ā Climate change √Ā Climate

Dommenget, Dietmar

247

Plasma wall interaction induced oscillations and their effects on the global recycling  

E-Print Network [OSTI]

1 Plasma wall interaction induced oscillations and their effects on the global recycling from Devices 2007.05.20-22 NIFS #12;2 contents 1. MOTIVATION (ULFE & termination) 2. dynamics of recycling 3 in signals on heat loads, particle recycling, and impurity influx and contents. Frequency ~ 1-2¥10-3 Hz

Princeton Plasma Physics Laboratory

248

Global Superdiffusion of Weak Chaos  

E-Print Network [OSTI]

A class of kicked rotors is introduced, exhibiting accelerator-mode islands (AIs) and {\\em global} superdiffusion for {\\em arbitrarily weak} chaos. The corresponding standard maps are shown to be exactly related to generalized web maps taken modulo an ``oblique cylinder''. Then, in a case that the web-map orbit structure is periodic in the phase plane, the AIs are essentially {\\em normal} web islands folded back into the cylinder. As a consequence, chaotic orbits sticking around the AI boundary are accelerated {\\em only} when they traverse tiny {\\em ``acceleration spots''}. This leads to chaotic flights having a quasiregular {\\em steplike} structure. The global weak-chaos superdiffusion is thus basically different in nature from the strong-chaos one in the usual standard and web maps.

Itzhack Dana

2003-10-20T23:59:59.000Z

249

Assimilation of surface data in a one-dimensional physical-biogeochemical model of the surface ocean: 2. Adjusting a simple trophic model to chlorophyll, temperature, nitrate, and pCO{sub 2} data  

SciTech Connect (OSTI)

This paper builds on a previous work which produced a constrained physical-biogeochemical model of the carbon cycle in the surface ocean. Three issues are addressed: (1) the results of chlorophyll assimilation using a simpler trophic model, (2) adjustment of parameters using the simpler model and data other than surface chlorophyll concentrations, and (3) consistency of the main carbon fluxes derived by the simplified model with values from the more complex model. A one-dimensional vertical model coupling the physics of the ocean mixed layer and a description of biogeochemical processes with a simple trophic model was used to address these issues. Chlorophyll concentration, nitrate concentration, and temperature were used to constrain the model. The surface chlorophyll information was shown to be sufficient to constrain primary production within the photic layer. The simultaneous assimilation of chlorophyll, nitrate, and temperature resulted in a significant improvement of model simulation for the data used. Of the nine biological and physical parameters which resulted in significant variations of the simulated chlorophyll concentration, seven linear combinations of the mode parameters were constrained. The model fit was an improvement on independent surface chlorophyll and nitrate data. This work indicates that a relatively simple biological model is sufficient to describe carbon fluxes. Assimilation of satellite or climatological data coulc be used to adjust the parameters of the model for three-dimensional models. It also suggests that the main carbon fluxes driving the carbon cycle within surface waters could be derived regionally from surface information. 38 refs., 16 figs., 7 tabs.

Prunet, P.; Minster, J.F.; Echevin, V. [Laboratoire CNES-CNRS, Toulouse (France)] [and others] [Laboratoire CNES-CNRS, Toulouse (France); and others

1996-03-01T23:59:59.000Z

250

Estimates of the Global Indirect Energy-Use Emission Impacts of USA Biofuel Policy  

SciTech Connect (OSTI)

This paper evaluates the indirect energy-use emission implications of increases in the use of biofuels in the USA between 2001 and 2010 as mandates within a dynamic global computable general equilibrium model. The study incorporates explicit markets for biofuels, petroleum and other fossil fuels, and accounts for interactions among all sectors of an 18-region global economy. It considers bilateral trade, as well as the dynamics of capital allocation and investment. Simulation results show that the biofuel mandates in the USA generate an overall reduction in global energy use and emissions over the simulation period from 2001 to 2030. Consequently, the indirect energy-use emission change or emission leakage under the mandate is negative. That is, global emission reductions are larger than the direct emission savings from replacing petroleum with biofuels under the USA RFS2 over the last decade. Under our principal scenario this enhanced the direct emission reduction from biofuels by about 66%. The global change in lifecycle energy-use emissions for this scenario was estimated to be about 93 million tons of CO2e in 2010, 45 million tons of CO2e in 2020, and an increase of 5 million tons of CO2e in 2030, relative to the baseline scenario. Sensitivity results of six alternative scenarios provided additional insights into the pattern of the regional and global effects of biofuel mandates on energy-use emissions.

Oladosu, Gbadebo A [ORNL

2012-01-01T23:59:59.000Z

251

Global Pollution: How Much Is Too Much?  

E-Print Network [OSTI]

009-0252-0 Global Pollution: How Much Is Too Much? Jack T.1) How much global pollution can our planet tolerate andThere is already more pollution on our planet than we can

Trevors, Jack T.; Saier, Milton H.

2009-01-01T23:59:59.000Z

252

Re-embedding the global soul  

E-Print Network [OSTI]

This thesis proposes to "re-embed" the "global nomad" into the context of an increasingly globalized world at the room scale. I define re-embedding as the "plugging in" of social relationships to local contexts and their ...

Wang, Joy (Joy Yuk-Hwa), 1975-

2001-01-01T23:59:59.000Z

253

Electronic Communities: Global Village or Cyberbalkans?  

E-Print Network [OSTI]

Electronic Communities: Global Village or Cyberbalkans? Marshall Van Alstyne Erik Brynjolfsson Tel KEYWORDS: Information Economy (AD02), Economic Theory (AM), Economic Impacts (BA01), Computerization of Society (BD0101), Organizational Structure (DA03), Information Flows (DD07), Globalization (AF1301

254

"How Can the WTO Help Harness Globalization?"  

E-Print Network [OSTI]

"How Can the WTO Help Harness Globalization?" "How Can the WTO Help Harness Globalization?" Public ForumPublic Forum WTOWTO20072007 4-5 October 20074-5 October 2007 #12;"How Can the WTO Help Harness

255

Ireland's Global University MSc World Heritage Conservation  

E-Print Network [OSTI]

for conservation · Cultural heritage, sustainable development and diversity · Global biodiversity and heritageIreland's Global University MSc World Heritage Conservation (Three Years Part Time) (Online facing conservation challenges, there is a growing need for professionals who understand how

256

Workforce Development in the Global Economy  

E-Print Network [OSTI]

Workforce Development in the Global Economy: LINKING SKILLS AND CAPABILITIES Phil Psilos & Competitiveness Duke University INTRODUCTION NOVEMBER 2011 #12;Workforce Development in the Global Economy competitiveness, and innovation in the knowledge economy. Duke CGGC works with a network of researchers

Richardson, David

257

Risk in the Global Supply Chain  

E-Print Network [OSTI]

Carbon footprints are not on the priority list of risk analysts in operations management for at least half or more of global businesses. What are the other risks in the global supply chain?

Datta, Shoumen

2006-01-01T23:59:59.000Z

258

ARM - What Causes Global Warming?  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUCProductstwrmrAre the Effects of Global Warming? Outreach Home Room

259

ARM - What is Global Warming?  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUCProductstwrmrAre the Effects of Global Warming? Outreach Home Outreach Homeis

260

ARM - What is Global Warming?  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUCProductstwrmrAre the Effects of Global Warming? Outreach Home Outreach Homeisis

Note: This page contains sample records for the topic "global biogeochemical 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

Sandia National Laboratories: Global Climate & Energy  

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

20, 2013, in Advanced Materials Laboratory, Energy Efficiency, Facilities, Global Climate & Energy, Materials Science, Modeling, Modeling & Analysis, Partnership, Research &...

262

Increasing Global Renewable Energy Market Share  

E-Print Network [OSTI]

Increasing Global Renewable Energy Market Share: Recent Trends and Perspectives Final Report..............................................................................................................................12 2.2 Bioenergy

Peinke, Joachim

263

The Offshore Services Global Value Chain  

E-Print Network [OSTI]

The Offshore Services Global Value Chain ECONOMIC UPGRADING AND WORKFORCE DEVELOPMENT Karina & COMPETITIVENESS #12;The Offshore Services Global Value Chain: Economic Upgrading and Workforce Development "Skills & Competitiveness, Duke University Posted: November 17, 2011 #12;The Offshore Services Global Value Chain: Economic

Richardson, David

264

Conservation laws for non global Lagrangians  

E-Print Network [OSTI]

In the Lagrangian framework for symmetries and conservation laws of field theories, we investigate globality properties of conserved currents associated with non-global Lagrangians admitting global Euler--Lagrange morphisms. Our approach is based on the recent geometric formulation of the calculus of variations on finite order jets of fibered manifolds in terms of variational sequences.

A. Borowiec; M. Ferraris; M. Francaviglia; M. Palese

2005-05-13T23:59:59.000Z

265

The Emerging Chinese economy & its Global Impacts  

E-Print Network [OSTI]

The Emerging Chinese economy & its Global Impacts Department of Geography & IDS University of Sussex 5 February: The Emerging Chinese Economy & its Global Impacts + Decoding the Harmonious Socialist of Leicester 19 February: Global Production Network & the Chinese Economy Prof. John Humphrey, IDS 26 February

Sussex, University of

266

Global Optimization in Generalized Geometric Programming  

E-Print Network [OSTI]

exchangernetwork design 5], chemical reactor design 2, 6], optimal condenser design 7], oxygen production 8Global Optimization in Generalized Geometric Programming Costas D. Maranas1 and Christodoulos A Abstract A deterministic global optimization algorithm is proposed for locating the global minimum

Maranas, Costas

267

Rangeland ecology: Key global research issues & questions  

E-Print Network [OSTI]

1 Rangeland ecology: Key global research issues & questions Robin Reid1 and Maria Fernandez Ecology Lab 2Associate Professor Colorado State University, Fort Collins, Colorado, USA Global Issues and Questions in Rangeland Ecology · Despite the focus here on global issues, we need to recognize that Mongolia

268

Global optimization in inverse problem of scatterometry  

E-Print Network [OSTI]

Global optimization in inverse problem of scatterometry Lekbir Afraites1,2 Jerome Hazard3 Patrick as a parametric optimization problem using the Least Square criterion. In this work, a design procedure for global robust optimization is developed using Kriging and global optimization approaches. Robustness

Paris-Sud XI, Université de

269

An Explanation of Global Warming without Supercomputing  

E-Print Network [OSTI]

An Explanation of Global Warming without Supercomputing (revised version) K. Miyazaki E that the anthropogenic global warming is severely limited because the Earth is a water planet. 1 Introduction Now,2,3] on this anthropogenic global warming (AGW) is essentially based on the results of elaborate and enormous computer

270

Global Warming: The Threat to the Planet*  

E-Print Network [OSTI]

Global Warming: The Threat to the Planet* Jim Hansen 17 April 2007 2007 Leo Szilard Lecture. Graham Red Squirrel #12;Survival of Species 1. "Business-as-Usual" Scenario - Global Warming ~ 3¬ļC - Likely Extinctions ~ 50 percent 2. "Alternative" Scenario - Global Warming ~ 1¬ļC - Likely Extinctions

Hansen, James E.

271

An Explanation of Global Warming without Supercomputing  

E-Print Network [OSTI]

An Explanation of Global Warming without Supercomputing K. Miyazaki E-mail: miyazakiro that the climate sensitivity never exceeds 6 C. Consequently, the anthropogenic global warming is severely limited be calculated in simple terms. Global warming is like that." However, there will be not a few physicists who do

272

4, 40694124, 2007 Global-scale  

E-Print Network [OSTI]

into evapotranspiration and total runoff. We estimate that global groundwater recharge was 12 666 km3 /yr for the climateHESSD 4, 4069­4124, 2007 Global-scale modeling of groundwater recharge P. D¨oll and K. Fiedler System Sciences Global-scale modeling of groundwater recharge P. D¨oll and K. Fiedler Institute

Boyer, Edmond

273

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.

Bťal, M -P; Eilers, S; Perrin, D

2010-01-01T23:59:59.000Z

274

Thermodynamic Evaluation of Low-Global Warming Potential Refrigerants...  

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

Evaluation of Low-Global-Warming-Potential Refrigerants Research & Development Roadmap: Next-Generation Low Global Warming Potential Refrigerants Next Generation Low-Global...

275

Saskia Sassen and the Sociology of Globalization: A Critical Appraisal  

E-Print Network [OSTI]

Economic globalization denationalizes national economies andGlobalization and the Postcolonial World: The New Political Economywidely on globalization from a political-economy approach.

Robinson, William I.

2009-01-01T23:59:59.000Z

276

The Global Nuclear Energy Partnership | Department of Energy  

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

The Global Nuclear Energy Partnership The Global Nuclear Energy Partnership An article describing the small scale reactors in the GNEP. The Global Nuclear Energy Partnership More...

277

A Model of Success: The Carnegie Institute for Global Ecology  

E-Print Network [OSTI]

Carnegie Institute for Global Ecology Kirstin Weeks, DavidInstitute for Global Ecology, the answer is an unquali? edremarkable about the Global Ecology building is not only how

Weeks, Kirstin; Lehrer, David; Bean, Jonathan

2007-01-01T23:59:59.000Z

278

Global Research on On The Verge | GE Global Research  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky LearningGet Assistance GetGiantOn The Verge Visits GE's Global

279

Global Mineral Resource Assessment Potash--A Global Overview of Evaporite-Related Potash  

E-Print Network [OSTI]

Global Mineral Resource Assessment Potash--A Global Overview of Evaporite-Related Potash Resources intentionally left blank. #12;Global Mineral Resource Assessment Michael L. Zientek, Jane M. Hammarstrom, and Kathleen M. Johnson, editors Potash--A Global Overview of Evaporite-Related Potash Resources, Including

Fleskes, Joe

280

Graduate Certificate in Global Health Fact Sheet College of Public Health GRADUATE EDUCATION IN GLOBAL HEALTH  

E-Print Network [OSTI]

Graduate Certificate in Global Health Fact Sheet · College of Public Health GRADUATE EDUCATION. Educational Objectives for the Graduate Certificate in Global Health Increase understanding of the global-disciplinary education in global health, electives and internships will be expected by student involvement with various

Arnold, Jonathan

Note: This page contains sample records for the topic "global biogeochemical 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

Impact of global dimming and brightening on global warming Martin Wild,1  

E-Print Network [OSTI]

Impact of global dimming and brightening on global warming Martin Wild,1 Atsumu Ohmura,1 and Knut February 2007. [1] Speculations on the impact of variations in surface solar radiation on global warming was responsible for the observed warming. To disentangle surface solar and greenhouse influences on global warming

Fischlin, Andreas

282

Global Biodiesel Market Trends,Global Biodiesel Market Trends, Outlook and OpportunitiesOutlook and Opportunities  

E-Print Network [OSTI]

Global Biodiesel Market Trends,Global Biodiesel Market Trends, Outlook and OpportunitiesPresident, Emerging Markets Online http://www.emerginghttp://www.emerging--markets.commarkets.com Author, Biodiesel 2020: A Global Market SurveyAuthor, Biodiesel 2020: A Global Market Survey Columnist

283

Increase of global monsoon area and precipitation under global warming: A robust signal?  

E-Print Network [OSTI]

) and the global monsoon total precipitation (GMP) have increased during 1979­2008 [Hsu et al., 2011; Wang et alIncrease of global monsoon area and precipitation under global warming: A robust signal? Pang of people around the world. The global monsoon precipitation had an increasing trend over the past three

Li, Tim

284

Economic Globalization and a Nuclear Renaissance  

SciTech Connect (OSTI)

The phenomenon of globalization has become increasingly well recognized, documented, and analyzed in the last several years. Globalization, the integration of markets and intra-firm competition on a worldwide basis, involves complex behavioral and mindset changes within a firm that facilitate global competition. The changes revolve around efficient information flow and rapid deployment of technology. The objective of this report is to examine the probable characteristics of a global nuclear renaissance and its broad implications for industry structure and export control relative to nuclear technology. The question of how a modern renaissance would affect the trend toward globalization of the nuclear industry is addressed.

Wood, Thomas W.; Johnson, Wayne L.; Parker, Brian M.

2001-10-22T23:59:59.000Z

285

Subsurface Uranium Fate and Transport: Integrated Experiments and Modeling of Coupled Biogeochemical Mechanisms of Nanocrystalline Uraninite Oxidation by Fe(III)-(hydr)oxides - Project Final Report  

SciTech Connect (OSTI)

Subsurface bacteria including sulfate reducing bacteria (SRB) reduce soluble U(VI) to insoluble U(IV) with subsequent precipitation of UO2. We have shown that SRB reduce U(VI) to nanometer-sized UO2 particles (1-5 nm) which are both intra- and extracellular, with UO2 inside the cell likely physically shielded from subsequent oxidation processes. We evaluated the UO2 nanoparticles produced by Desulfovibrio desulfuricans G20 under growth and non-growth conditions in the presence of lactate or pyruvate and sulfate, thiosulfate, or fumarate, using ultrafiltration and HR-TEM. Results showed that a significant mass fraction of bioreduced U (35-60%) existed as a mobile phase when the initial concentration of U(VI) was 160 ĶM. Further experiments with different initial U(VI) concentrations (25 - 900 ?M) in MTM with PIPES or bicarbonate buffers indicated that aggregation of uraninite depended on the initial concentrations of U(VI) and type of buffer. It is known that under some conditions SRB-mediated UO2 nanocrystals can be reoxidized (and thus remobilized) by Fe(III)-(hydr)oxides, common constituents of soils and sediments. To elucidate the mechanism of UO2 reoxidation by Fe(III) (hydr)oxides, we studied the impact of Fe and U chelating compounds (citrate, NTA, and EDTA) on reoxidation rates. Experiments were conducted in anaerobic batch systems in PIPES buffer. Results showed EDTA significantly accelerated UO2 reoxidation with an initial rate of 9.5?M day-1 for ferrihydrite. In all cases, bicarbonate increased the rate and extent of UO2 reoxidation with ferrihydrite. The highest rate of UO2 reoxidation occurred when the chelator promoted UO2 and Fe(III) (hydr)oxide dissolution as demonstrated with EDTA. When UO2 dissolution did not occur, UO2 reoxidation likely proceeded through an aqueous Fe(III) intermediate as observed for both NTA and citrate. To complement to these laboratory studies, we collected U-bearing samples from a surface seep at the Rifle field site and have measured elevated U concentrations in oxic iron-rich sediments. To translate experimental results into numerical analysis of U fate and transport, a reaction network was developed based on Sani et al. (2004) to simulate U(VI) bioreduction with concomitant UO2 reoxidation in the presence of hematite or ferrihydrite. The reduction phase considers SRB reduction (using lactate) with the reductive dissolution of Fe(III) solids, which is set to be microbially mediated as well as abiotically driven by sulfide. Model results show the oxidation of HSĖ by Fe(III) directly competes with UO2 reoxidation as Fe(III) oxidizes HSĖ preferentially over UO2. The majority of Fe reduction is predicted to be abiotic, with ferrihydrite becoming fully consumed by reaction with sulfide. Predicted total dissolved carbonate concentrations from the degradation of lactate are elevated (log(pCO2) ~ Ė1) and, in the hematite system, yield close to two orders-of-magnitude higher U(VI) concentrations than under initial carbonate concentrations of 3 mM. Modeling of U(VI) bioreduction with concomitant reoxidation of UO2 in the presence of ferrihydrite was also extended to a two-dimensional field-scale groundwater flow and biogeochemically reactive transport model for the South Oyster site in eastern Virginia. This model was developed to simulate the field-scale immobilization and subsequent reoxidation of U by a biologically mediated reaction network.

Peyton, Brent M. [Montana State University; Timothy, Ginn R. [University of California Davis; Sani, Rajesh K. [South Dakota School of Mines and Technology

2013-08-14T23:59:59.000Z

286

Global searches at the Tevatron  

SciTech Connect (OSTI)

We present a review of global searches at the Tevatron with D0 and CDF detectors. The strategy involves splitting the data from the Tevatron into many final states and looking for signs of new physics in the high p{sub T} tails of various distributions using SLEUTH algorithm. CDF also utilizes Bump Hunter to search for narrow resonances in mass distributions. We analyzed 180 D0 final states, 9335 D0 distributions; 399 CDF final states and 19650 CDF distributions. No evidence of new physics is found.

Renkel, Peter; /Southern Methodist U.

2009-01-01T23:59:59.000Z

287

ARM - Lesson Plans: Global Warming  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUC : XDCResearch Related InformationAcid Rain Outreach HomeExpansion ofGlobal

288

ARM - What Causes Global Warming?  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUCProductstwrmrAre the Effects of Global Warming? Outreach Home RoomThinkersWhat

289

Endeavor Global | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37. It is classifiedProject) |Emeryville,EmpireGlobal Jump to: navigation,

290

Flavor Dynamics  

E-Print Network [OSTI]

The purpose of BRAHMS is to survey the dynamics of relativistic heavy ion (as well as pp and d-A) collisions over a very wide range of rapidity and transverse momentum. The sum of these data may give us a glimpse of the initial state of the system, its transverse and longitudinal evolution and how the nature of the system changes with time. Here I will concentrate on the origin and dynamics of the light flavors, i.e. the creation and transport of the up, down and strange quarks. The results presented here are certainly not the end of the story. It is my hope that in a few years new detectors will reveal the rapidity dependence of the charm and bottom quarks.

Michael Murray; for the BRAHMS Collaboration

2007-10-24T23:59:59.000Z

291

Investigation of glacial dynamics in lambert glacial basin using satellite remote sensing techniques  

E-Print Network [OSTI]

The Antarctic ice sheet mass budget is a very important factor for global sea level. An understanding of the glacial dynamics of the Antarctic ice sheet are essential for mass budget estimation. Utilizing a surface velocity field derived from...

Yu, Jaehyung

2006-04-12T23:59:59.000Z

292

WHAT'S IN A NAME? GLOBAL WARMING VERSUS CLIMATE CHANGE  

E-Print Network [OSTI]

WHAT'S IN A NAME? GLOBAL WARMING VERSUS CLIMATE CHANGE May 2014 #12;What's In A Name? Global Warming vs. Climate Change 1 TABLE OF CONTENTS PREFACE NATIONAL SURVEY STUDY 2: GLOBAL WARMING VS. CLIMATE CHANGE............................ 10 Is global

Haller, Gary L.

293

NERSC Calculations Provide Independent Confirmation of Global Land Warming  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recovery challengeMultiscale Subsurface BiogeochemicalOverviewSelects

294

Global Capitalism Theory and the Emergence of Transnational Elites  

E-Print Network [OSTI]

world economy associated with globalization have contributedGlobalization and the Post-Colonial World: The New Political Economy

Robinson, William I.

2010-01-01T23:59:59.000Z

295

Global Capitalism Theory and the Emergence of Transnational Elites  

E-Print Network [OSTI]

world economy associated with globalization have contributedGlobalization and the Post-Colonial World: The New Political Economy

Robinson, William I

2012-01-01T23:59:59.000Z

296

DOE Initiates Environmental Impact Statement for Global Nuclear...  

Office of Environmental Management (EM)

Environmental Impact Statement for Global Nuclear Energy Partnership Technology Demonstrations DOE Initiates Environmental Impact Statement for Global Nuclear Energy Partnership...

297

activities relating global: Topics by E-print Network  

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

assessment in Azerbaijan Environmental Sciences and Ecology Websites Summary: , global warming, and global entrepreneurship. Discovery Park works syner- gistically with...

298

assessing historical global: Topics by E-print Network  

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

assessment in Azerbaijan Environmental Sciences and Ecology Websites Summary: , global warming, and global entrepreneurship. Discovery Park works syner- gistically with...

299

activation a global toggle: Topics by E-print Network  

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

assessment in Azerbaijan Environmental Sciences and Ecology Websites Summary: , global warming, and global entrepreneurship. Discovery Park works syner- gistically with...

300

Dynamics of Bianchi type I elastic spacetimes  

E-Print Network [OSTI]

We study the global dynamical behavior of spatially homogeneous solutions of the Einstein equations in Bianchi type I symmetry, where we use non-tilted elastic matter as an anisotropic matter model that naturally generalizes perfect fluids. Based on our dynamical systems formulation of the equations we are able to prove that (i) toward the future all solutions isotropize; (ii) toward the initial singularity all solutions display oscillatory behavior; solutions do not converge to Kasner solutions but oscillate between different Kasner states. This behavior is associated with energy condition violation as the singularity is approached.

Simone Calogero; J. Mark Heinzle

2007-06-26T23:59:59.000Z

Note: This page contains sample records for the topic "global biogeochemical 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

Global and Koopman modes analysis of sound generation in mixing layers  

SciTech Connect (OSTI)

It is now well established that linear and nonlinear instability waves play a significant role in the noise generation process for a wide variety of shear flows such as jets or mixing layers. In that context, the problem of acoustic radiation generated by spatially growing instability waves of two-dimensional subsonic and supersonic mixing layers are revisited in a global point of view, i.e., without any assumption about the base flow, in both a linear and a nonlinear framework by using global and Koopman mode decompositions. In that respect, a timestepping technique based on disturbance equations is employed to extract the most dynamically relevant coherent structures for both linear and nonlinear regimes. The present analysis proposes thus a general strategy for analysing the near-field coherent structures which are responsible for the acoustic noise in these configurations. In particular, we illustrate the failure of linear global modes to describe the noise generation mechanism associated with the vortex pairing for the subsonic regime whereas they appropriately explain the Mach wave radiation of instability waves in the supersonic regime. By contrast, the Dynamic Mode Decomposition (DMD) analysis captures both the near-field dynamics and the far-field acoustics with a few number of modes for both configurations. In addition, the combination of DMD and linear global modes analyses provides new insight about the influence on the radiated noise of nonlinear interactions and saturation of instability waves as well as their interaction with the mean flow.

Song, G.; Robinet, J.-C.; Gloerfelt, X. [Laboratoire DynFluid, Arts et Mťtiers ParisTech, 151 Boulevard de líHopital, 75013 Paris (France)] [Laboratoire DynFluid, Arts et Mťtiers ParisTech, 151 Boulevard de líHopital, 75013 Paris (France); Alizard, F. [Laboratoire DynFluid, CNAM, 151 Boulevard de líHopital, 75013 Paris (France)] [Laboratoire DynFluid, CNAM, 151 Boulevard de líHopital, 75013 Paris (France)

2013-12-15T23:59:59.000Z

302

arXiv:cond-mat/9606101v114Jun1996 Relationship Between Structural Fractal and Possible Dynamic Scaling  

E-Print Network [OSTI]

arXiv:cond-mat/9606101v114Jun1996 Relationship Between Structural Fractal and Possible Dynamic dimensionality are obtained for different structures. We then show that there might exist the dynamic scaling with homogeneous structure are obtained. The dynamic critical exponents of the global proteins in folding

Gong, Xingao

303

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

304

Global warming, insurance losses and financial industry  

SciTech Connect (OSTI)

Global warming causes extremely bad weather in the near term. They have already caught the attention of the insurance industry, as they suffered massive losses in the last decade. Twenty-one out of the 25 largest catastrophes in the US, mainly in the form of hurricanes have occurred in the last decade. The insurance industry has reacted by taking the risk of global warming in decisions as to pricing and underwriting decisions. But they have yet to take a more active role in regulating the factors that contributes to global warming. How global warming can impact the financial industry and the modern economy is explored. Insurance and modern financial derivatives are key to the efficient functioning of the modern economy, without which the global economy can still function but will take a giant step backward. Any risk as global warming that causes economic surprises will hamper the efficient working of the financial market and the modern economy.

Low, N.C. [UOB Life Assurance Limited, Singapore (Singapore)

1996-12-31T23:59:59.000Z

305

Global aspects of radiation memory  

E-Print Network [OSTI]

Gravitational radiation has a memory effect represented by a net change in the relative positions of test particles. Both the linear and nonlinear sources proposed for this radiation memory are of the "electric" type, or E mode, as characterized by the even parity of the polarization pattern. Although "magnetic" type, or B mode, radiation memory is mathematically possible, no physically realistic source has been identified. There is an electromagnetic counterpart to radiation memory in which the velocity of charged particles obtain a net "kick". Again, the physically realistic sources of electromagnetic radiation memory that have been identified are of the electric type. In this paper, a global null cone description of the electromagnetic field is applied to establish the non-existence of B mode radiation memory and the non-existence of E mode radiation memory due to a bound charge distribution.

J. Winicour

2014-10-11T23:59:59.000Z

306

Coal mine methane global review  

SciTech Connect (OSTI)

This is the second edition of the Coal Mine Methane Global Overview, updated in the summer of 2008. This document contains individual, comprehensive profiles that characterize the coal and coal mine methane sectors of 33 countries - 22 methane to market partners and an additional 11 coal-producing nations. The executive summary provides summary tables that include statistics on coal reserves, coal production, methane emissions, and CMM projects activity. An International Coal Mine Methane Projects Database accompanies this overview. It contains more detailed and comprehensive information on over two hundred CMM recovery and utilization projects around the world. Project information in the database is updated regularly. This document will be updated annually. Suggestions for updates and revisions can be submitted to the Administrative Support Group and will be incorporate into the document as appropriate.

NONE

2008-07-01T23:59:59.000Z

307

Cosmic Rays and Global Warming  

SciTech Connect (OSTI)

Some workers have claimed that the observed temporal correlations of (low level) terrestrial cloud cover with the cosmic ray intensity changes, due to solar modulation, are causal. The possibility arises, therefore, of a connection between cosmic rays and Global Warming. If true, the implications would be very great. We have examined this claim in some detail. So far, we have not found any evidence in support and so our conclusions are to doubt it. From the absence of corroborative evidence we estimate that less than 15% at the 95% confidence level, of the 11-year cycle warming variations are due to cosmic rays and less than 2% of the warming over the last 43 years is due to this cause. The origin of the correlation itself is probably the cycle of solar irradiance although there is, as yet, no certainty.

Sloan, T. [Physics Department, University of Lancaster, Lancaster, UK (United Kingdom); Wolfendale, A. W. [Physics Department, Durham University, Durham (United Kingdom)

2008-01-24T23:59:59.000Z

308

Cosmic Rays and Global Warming  

E-Print Network [OSTI]

It has been claimed by others that observed temporal correlations of terrestrial cloud cover with `the cosmic ray intensity' are causal. The possibility arises, therefore, of a connection between cosmic rays and Global Warming. If true, the implications would be very great. We have examined this claim to look for evidence to corroborate it. So far we have not found any and so our tentative conclusions are to doubt it. Such correlations as appear are more likely to be due to the small variations in solar irradiance, which, of course, correlate with cosmic rays. We estimate that less than 15% of the 11-year cycle warming variations are due to cosmic rays and less than 2% of the warming over the last 35 years is due to this cause.

T. Sloan; A W Wolfendale

2007-06-28T23:59:59.000Z

309

Soil degradation, global warming and climate impacts  

E-Print Network [OSTI]

will demonstrate one methodology for assessing the potential large-scale impacts of soil degradation on African climates and water resources. In addition it will compare and contrast these impacts to those expected from global warming and compare impacts for differ...- ent watershed regions on the continent. 2. METHODS In order to make a similar comparison between pro- jected climate change scenarios due to global warming © Inter-Research 2001 *E-mail: feddema@ku.edu Soil degradation, global warming and climate...

Feddema, Johannes J.; Freire, Sergio Carneiro

2001-01-01T23:59:59.000Z

310

Synchronization of a Josephson junction array in terms of global variables  

E-Print Network [OSTI]

We consider an array of Josephson junctions with a common LCR-load. Application of the Watanabe-Strogatz approach [Physica D, v. 74, p. 197 (1994)] allows us to formulate the dynamics of the array via the global variables only. For identical junctions this is a finite set of equations, analysis of which reveals the regions of bistability of the synchronous and asynchronous states. For disordered arrays with distributed parameters of the junctions, the problem is formulated as an integro-differential equation for the global variables, here stability of the asynchronous states and the properties of the transition synchrony-asynchrony are established numerically.

Vladimir Vlasov; Arkady Pikovsky

2013-04-08T23:59:59.000Z

311

Chimera-like states in an ensemble of globally coupled oscillators  

E-Print Network [OSTI]

We demonstrate emergence of a complex state in a homogeneous ensemble of globally coupled identical oscillators, reminiscent of chimera states in locally coupled oscillator lattices. In this regime some part of the ensemble forms a regularly evolving cluster, while all other units irregularly oscillate and remain asynchronous. We argue that chimera emerges because of effective bistability which dynamically appears in the originally monostable system due to internal delayed feedback in individual units. Additionally, we present two examples of chimeras in bistable systems with frequency-dependent phase shift in the global coupling.

Azamat Yeldesbay; Arkady Pikovsky; Michael Rosenblum

2014-02-18T23:59:59.000Z

312

GLOBAL CONNECTIONS PROGRAM Application for International Students  

E-Print Network [OSTI]

GLOBAL CONNECTIONS PROGRAM Application for International Students Personal Information Name of English? (Yes/No): _____ First Language: __________________________ Educational Information Major: _________________ Minor/Certificate: ___________________ Current Classification: ___ Freshman ___ Soph. ___ Junior

Wiegner, Tracy N.

313

Susan Murabana - Astronomer, Global Hands On Universe  

ScienceCinema (OSTI)

Susan Murabana is working to bring astronomy education to Africa through Global Hands-On Universe, a program founded by Berkeley Lab astronomer Carl Pennypacker.

Murabana, Susan

2013-05-29T23:59:59.000Z

314

Go Global Newsletter, Winter/Spring 2006  

E-Print Network [OSTI]

The World Tribunal on Iraq (WTI) held its final session inits inception and conduct. The WTI is one expression of themoral globalization. Ē The WTI generated intense interest in

Global & International Studies

2006-01-01T23:59:59.000Z

315

Heat Waves, Global Warming, and Mitigation  

E-Print Network [OSTI]

Heat Waves, Global Warming, and Mitigation Ann E. Carlson*II. HEAT WAVE DEFINITIONS .. A . HCHANGE AND HEAT WAVES .. CLIMATE III. IV. HEAT

Carlson, Ann E.

2008-01-01T23:59:59.000Z

316

Pax Global: Compromise Agreement (2013-SE-1413)  

Broader source: Energy.gov [DOE]

DOE and Pax Global, Inc., entered into a Compromise Agreement to resolve a case involving the distribution in commerce of noncompliant freezers.

317

Constraint aggregation for rigorous global optimization  

E-Print Network [OSTI]

the local search happened to find the unique global minimizer), the CSP (2) ..... Finding a valid upper bound on the optimal objective function value is essential.

2014-07-03T23:59:59.000Z

318

Global hyperbolicity for spacetimes with continuous metrics  

E-Print Network [OSTI]

We show that the definition of global hyperbolicity in terms of the compactness of the causal diamonds and non-total imprisonment can be extended to spacetimes with continuous metrics, while retaining all of the equivalences to other notions of global hyperbolicity. In fact, global hyperbolicity is equivalent to the compactness of the space of causal curves and to the existence of a Cauchy hypersurface. Furthermore, global hyperbolicity implies causal simplicity, stable causality and the existence of maximal curves connecting any two causally related points.

Clemens Sšmann

2015-02-02T23:59:59.000Z

319

Calibrating Artificial Neural Networks by Global Optimization  

E-Print Network [OSTI]

(2009) A global optimization study on the devolatilisation kinetics of coal, biomass and waste fuels. .... Proc. IEEE ISCAS, Bangkok, Thailand, May 2003, V725-728.

Janos Pinter

2010-07-21T23:59:59.000Z

320

Plenia Locatel Group: Globalizing from Venezuela  

E-Print Network [OSTI]

In 2009 the founders and top executives of Plenia Locatel Group, a retail business in Venezuela specializing in health care products and services, were planning a global

Gibson, Cyrus

2009-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "global biogeochemical 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

Global Climate Change: Environment, Technology and Society  

E-Print Network [OSTI]

. Appreciate the main aspects of hydropower resource estimation, turbine design, deployment and environmental AND ASSESSMENTS Global Climate Change: Environment, Technology and Society I am a Civil Hydraulic

Mumby, Peter J.

322

Optimization Online - Global Optimization Submissions - 2014  

E-Print Network [OSTI]

Zhao Sun. February 2014. Global optimization on the torus, the sphere and the rotation ... RBFOpt: an open-source library for black-box optimization with costly†...

323

GLOBALIZATION AND THE TWIN PROTECTIONS Juillet 2007  

E-Print Network [OSTI]

with the help of a global public found mainly financed by developed countries. JEL codes: F13; F16; F18; F59; H

Paris-Sud XI, Université de

324

Global delivery of IT services : looking beyond the global delivery model  

E-Print Network [OSTI]

The objective of this thesis is to analyze the factors that create competitive advantage through global delivery of IT services. Research on this thesis consists of a review of IT services markets and globally distributed ...

Cherian, Binoy

2007-01-01T23:59:59.000Z

325

``Climate Modelling & Global Change'' scientific report 1 ``Climate Modelling & Global Change'' Team  

E-Print Network [OSTI]

``Climate Modelling & Global Change'' scientific report 1 ``Climate Modelling & Global Change of the tropical climate : : : : : : : : : : : : : : : : : : : : : 6 2.2 Short≠term variability studies : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 8 2.3 Climate drift sensitivity studies

326

ARCS FOUNDATION GLOBAL IMPACT AWARD Global Health, Public Good and Graduate Education  

E-Print Network [OSTI]

1 ARCS FOUNDATION GLOBAL IMPACT AWARD Global Health, Public Good and Graduate Education Case the ARCS Foundation Awards Luncheon in Atlanta on November 21, 2013. Application Materials: 1) A letter

Arnold, Jonathan

327

Session Title Biodiversity Without Borders: A Global Problem Demanding Global Solutions  

E-Print Network [OSTI]

Session Title Biodiversity Without Borders: A Global Problem Biodiversity is the bedrock that sustains human societies and economies and scale. The threats biodiversity faces are inherently global and ultimately

Barnes, Elizabeth A.

328

Global Roads Global Roads Open Access Data Set, Version 1 (gROADSv1): South America  

E-Print Network [OSTI]

0 1,000 Km Global Roads Global Roads Open Access Data Set, Version 1 (gROADSv1): South America South America Lambert Conformal Conic Projection Data source: Center for International Earth Science

Columbia University

329

MSTER EN CAMBIO GLOBAL TITULO MSTER EN CAMBIO GLOBAL/DOCTORADO  

E-Print Network [OSTI]

Desertificación y Cambio Global (5 ECTS) Obligatoria Emisiones, transporte y biogeoquímicade los contaminantes

330

A Global Assessment of Manufacturing: Economic  

E-Print Network [OSTI]

A Global Assessment of Manufacturing: Economic Development, Energy Use, Carbon Emissions Keywords production, materials, closed loop, China, emerging economies Abstract We present in two parts an assessment of global manufacturing. In the first part, we review economic development, pollution, and carbon

Gutowski, Timothy

331

Global Policy Research Institute External Advisory Council  

E-Print Network [OSTI]

, and global health. Additionally, Dr. Blumenthal serves as Senior Policy and Medical Advisor to amf. She is the former U.S. Assistant Surgeon General, Senior Global Health Advisor, and Founding Deputy for Agricultural Trade and Food Assistance, focusing primarily on Farm Bill issues. Mr. Conner received a Bachelor

Ginzel, Matthew

332

Global integration for metals, mining and forest  

E-Print Network [OSTI]

such as coils, bars and sheets. · Forest and paper companies own or lease forests, cut timber, process woodBeyond the familiar Global integration for metals, mining and forest and paper companies Industrial commitment by IBM Global Business Services to provide analysis and viewpoints that help companies realize

333

The Science of Global Warming Energy Balance  

E-Print Network [OSTI]

The Science of Global Warming ·Energy Balance ·Feedback Loops Global Warming can be understood complexities ·Introduce a Simple Model of Energy Balance ·Understand the Vocabulary ·Point out some units of energy input from the Sun = Temperature: 5.3 oC Greenhouse Effect 101: A Balance is Achieved

Blais, Brian

334

7, 1365313697, 2007 Global mean age of  

E-Print Network [OSTI]

ACPD 7, 13653­13697, 2007 Global mean age of air from MIPAS G. P. Stiller et al. Title Page measurements G. P. Stiller 1 , T. von Clarmann 1 , M. H¨opfner 1 , N. Glatthor 1 , U. Grabowski 1 , S. Kellmann Correspondence to: G. P. Stiller (gabriele.stiller@imk.fzk.de) 13653 #12;ACPD 7, 13653­13697, 2007 Global mean

Paris-Sud XI, Université de

335

Global Fitting Project Brookhaven National Laboratory  

E-Print Network [OSTI]

· Global Fitting - procedures, software · Recent Projects - new data sets · Program Components on the CTEQ fits · Also used for CCFR and NuTeV DIS analyses #12;CTEQ Project Procedures · Each new projectCTEQ Global Fitting Project J.F. Owens Brookhaven National Laboratory October 8, 2007 #12;Outline

Ohta, Shigemi

336

Global Climate Change Earth, 1972, Apollo 17,  

E-Print Network [OSTI]

;Projected Future Temperature · 2-11.5 deg F projected increase in global average · more intense, more frequent, and longer-lasting heat waves. #12;Projected Future Precipitation · Increase in global average infrared energy as a radiatively active constituent in Earth's atmosphere. Svante Arrhenius, a Swedish

Hansen, Andrew J.

337

Digest of Global Initiatives (June 16, 2011)  

E-Print Network [OSTI]

: The economies of the US and China are the globally dominant drivers of fossil fuel consumption and the releasePartnership: The China-US Joint Research Center for Ecosystem and Environmental Change Countries: China Scope, and practical protocols for the best solutions for global energy, climate, and environmental problems. More than

Ginzel, Matthew

338

New Laboratory Complex Department of Global Ecology  

E-Print Network [OSTI]

, and associated facilities to house its new Department of Global Ecology. The buildings, located on the campus1 New Laboratory Complex Department of Global Ecology Carnegie Institution of Washington Stanford Ecology will conduct basic research and training on large-scale interactions between ecological systems

339

New Realities for Global Health 2013  

E-Print Network [OSTI]

D is an economist and sociologist, visiting professor in health and social care at London South Bank University#12;New Realities for Global Health 2013 Rapporteur's Report Graham Lister Canada-UK Colloquium, 21-UK Council #12;II /NEW REALITIES FOR GLOBAL HEALTH 2013 © The Canada-UK Council, 2014 #12;GRAHAM LISTER / III

Abolmaesumi, Purang

340

SOME CHILLING CONSIDERATIONS ABOUT GLOBAL WARMING  

E-Print Network [OSTI]

of Arizona #12;Weiss and Overpeck, University of Arizona #12;MELTING OF GREENLAND ICE CAP Satellite Complete melt of the Greenland ice sheet would raise the level of the global ocean 7 meters. #12 thousand years Polar ice cores #12;GREENHOUSE GAS FORCING AND CHANGE IN GLOBAL MEAN SURFACE TEMPERATURE

Schwartz, Stephen E.

Note: This page contains sample records for the topic "global biogeochemical 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

Fast Globally Convergent Reconstruction in Emission Tomography  

E-Print Network [OSTI]

considerable speedup by using only a subset of the projection data per sub- iteration. However, OSEM1 Fast Globally Convergent Reconstruction in Emission Tomography Using COSEM, an Incremental EM globally convergent incremental EM algorithms for reconstruction in emission tomography, COSEM- ML

Rangarajan, Anand

342

6, 48974927, 2006 A global emission  

E-Print Network [OSTI]

aerosol causes atmospheric warming through the direct aerosol effect, i.e. the trans- mission of absorbedACPD 6, 4897­4927, 2006 A global emission inventory of carbon aerosol for 1860­1997 C. Junker and C a Creative Commons License. Atmospheric Chemistry and Physics Discussions A global emission inventory

Paris-Sud XI, Université de

343

Compilationof Regional to Global Inventoriesof Anthropogenic Emissions  

E-Print Network [OSTI]

inventories of emissions of the trace species included in the study at the appropriate sectoral, spatial inventories calculated global emissions by large geographic areas (Vfkhelyi, 1985), with very little spatial to compile regional to global inventories of anthropogenic emissions. This discussion is by no means

344

BIODIVERSITY Global conservation strategies for two  

E-Print Network [OSTI]

BIODIVERSITY RESEARCH Global conservation strategies for two clades of snakes: combining taxon biodiversity losses world-wide (Ehrlich, 1994; Pimm et al., 1995). In response to an imminent crisis in biodiversity, several global schemes of prioritization have been developed in recent years, particularly by non

Rodr√≠guez, Miguel √Āngel

345

Global Food Security Programme Exploring public views  

E-Print Network [OSTI]

Global Food Security Programme ­ Exploring public views #12;©TNS June 2012 -1- Executive Summary significant public policy issues of this century. This scoping study for the Global Food Security programme. The project involved a total of 44 people in a two stage workshop process in London, Edinburgh and Aberystwyth

346

Semiclassical analysis of quantum dynamics  

E-Print Network [OSTI]

Simulating the molecular dynamics (MD) using classical or semi-classical trajectories provides important details for the understanding of many chemical reactions, protein folding, drug design, and solvation effects. MD simulations using trajectories have achieved great successes in the computer simulations of various systems, but it is difficult to incorporate quantum effects in a robust way. Therefore, improving quantum wavepacket dynamics and incorporating nonadiabatic transitions and quantum effects into classical and semi-classical molecular dynamics is critical as well as challenging. In this paper, we present a MD scheme in which a new set of equations of motion (EOM) are proposed to effectively propagate nuclear trajectories while conserving quantum mechanical energy which is critical for describing quantum effects like tunneling. The new quantum EOM is tested on a one-state one-dimensional and a two-state two-dimensional model nonadiabatic systems. The global quantum force experienced by each trajectory promotes energy redistribution among the bundle of trajectories, and thus helps the individual trajectory tunnel through the potential barrier higher than the energy of the trajectory itself. Construction of the new quantum force and EOM also provides a better way to treat the issue of back-reaction in mixed quantum-classical (MQC) methods, i.e. self-consistency between quantum degrees of freedom (DOF) and classical DOF.

Siyang Yang

2011-11-15T23:59:59.000Z

347

Global vs local Casimir effect  

E-Print Network [OSTI]

This paper continues the investigation of the Casimir effect with the use of the algebraic formulation of quantum field theory in the initial value setting. Basing on earlier papers by one of us (AH) we approximate the Dirichlet and Neumann boundary conditions by simple interaction models whose nonlocality in physical space is under strict control, but which at the same time are admissible from the point of view of algebraic restrictions imposed on models in the context of Casimir backreaction. The geometrical setting is that of the original parallel plates. By scaling our models and taking appropriate limit we approach the sharp boundary conditions in the limit. The global force is analyzed in that limit. One finds in Neumann case that although the sharp boundary interaction is recovered in the norm resolvent sense for each model considered, the total force per area depends substantially on its choice and diverges in the sharp boundary conditions limit. On the other hand the local energy density outside the interaction region, which in the limit includes any compact set outside the strict position of the plates, has a universal limit corresponding to sharp conditions. This is what one should expect in general, and the lack of this discrepancy in Dirichlet case is rather accidental. Our discussion pins down its precise origin: the difference in the order in which scaling limit and integration over the whole space is carried out.

Andrzej Herdegen; Mariusz Stopa

2010-07-13T23:59:59.000Z

348

Nitrogen isotope dynamics of the Cariaco Basin, Venezuela Robert C. Thunell,1  

E-Print Network [OSTI]

Nitrogen isotope dynamics of the Cariaco Basin, Venezuela Robert C. Thunell,1 Daniel M. Sigman,2 of Venezuela. Water column denitrification occurring in the basin has only a very small isotopic imprint-Karger, Y. Astor, and R. Varela (2004), Nitrogen isotope dynamics of the Cariaco Basin, Venezuela, Global

Sigman, Daniel M.

349

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

350

Sustainable Passenger Transportation: Dynamic Ride-Sharing Niels Agatz  

E-Print Network [OSTI]

are associated with climate change and global warming. Effective usage of empty car seats by ride-sharing may, and pollution. Moreover, ride- sharing allows users to share car-related expenses, which can be substantialSustainable Passenger Transportation: Dynamic Ride-Sharing Niels Agatz Alan Erera

Erera, Alan

351

Globalization and human cooperation Nancy R. Buchana,1  

E-Print Network [OSTI]

, the overharvesting of natural resources and human-induced global warming. However, what does globalization imply and individual levels and ana- lyzing the relationship between globalization and individual co- operation of globalization increase, so too does individual cooperation at the global level vis-a`-vis the local level

352

Chimeras in globally coupled oscillatory systems: From ensembles of oscillators to spatially continuous media  

E-Print Network [OSTI]

We study an oscillatory medium with a nonlinear global coupling that gives rise to a harmonic mean-field oscillation with constant amplitude and frequency. Two types of cluster states are found, each undergoing a symmetry-breaking transition towards a related chimera state. We demonstrate that the diffusional coupling is non-essential for these complex dynamics. Furthermore, we investigate localized turbulence and discuss the question of a precise definition for chimera states.

Lennart Schmidt; Katharina Krischer

2015-03-13T23:59:59.000Z

353

Building a Network of SME for a Global PSS Infrastructure in Complex High-Tech Systems: Example of Urban Applications  

E-Print Network [OSTI]

Building a Network of SME for a Global PSS Infrastructure in Complex High-Tech Systems: Example is then applied to the case of urban PSS. Keywords: Network of SME, PSS Organization, Machine and facilitating maintenance. Dynamic high-technology Small and Medium Enterprises (SME) propose innovative

Paris-Sud XI, Université de

354

Protein Dynamics and Biocatalysis  

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

Protein Dynamics and Biocatalysis Protein Dynamics and Biocatalysis 1998 Annual Report Grand Challenge Projects biocatalysis.gif A model of the Michaelis complex for the TEM-1...

355

Climate Effects of Global Land Cover Change  

SciTech Connect (OSTI)

There are two competing effects of global land cover change on climate: an albedo effect which leads to heating when changing from grass/croplands to forest, and an evapotranspiration effect which tends to produce cooling. It is not clear which effect would dominate in a global land cover change scenario. We have performed coupled land/ocean/atmosphere simulations of global land cover change using the NCAR CAM3 atmospheric general circulation model. We find that replacement of current vegetation by trees on a global basis would lead to a global annual mean warming of 1.6 C, nearly 75% of the warming produced under a doubled CO{sub 2} concentration, while global replacement by grasslands would result in a cooling of 0.4 C. These results suggest that more research is necessary before forest carbon storage should be deployed as a mitigation strategy for global warming. In particular, high latitude forests probably have a net warming effect on the Earth's climate.

Gibbard, S G; Caldeira, K; Bala, G; Phillips, T; Wickett, M

2005-08-24T23:59:59.000Z

356

Biogeophysical effects of CO2-fertilization on global climate  

SciTech Connect (OSTI)

CO{sub 2}-fertilization affects plant growth, which modifies surface physical properties, altering the surface albedo, and fluxes of sensible and latent heat. We investigate how such CO{sub 2}-fertilization effects on vegetation and surface properties would affect the climate system. Using a global three-dimensional climate-carbon model that simulates vegetation dynamics, we compare two multi-century simulations: a ''Control'' simulation with no emissions, and a ''Physiol-noGHG'' simulation where physiological changes occur as a result of prescribed CO{sub 2} emissions, but where CO{sub 2}-induced greenhouse warming is not included. In our simulations, CO{sub 2}-fertilization produces warming; we obtain an annual- and global-mean warming of about 0.65 K (and land-only warming of 1.4 K) after 430 years. This century-scale warming is mostly due to a decreased surface albedo associated with the expansion of the Northern Hemisphere boreal forests. On decadal time scales, the CO{sub 2} uptake by afforestation should produce a cooling effect that exceeds this albedo-based warming; but if the forests remain in place, the CO{sub 2}-enhanced-greenhouse effect would diminish as the ocean equilibrates with the atmosphere, whereas the albedo effect would persist. Thus, on century time scales, there is the prospect for net warming from CO{sub 2}-fertilization of the land biosphere. Further study is needed to confirm and better quantify our results.

Bala, G; Caldeira, K; Mirin, A; Wickett, M; Delire, C; Phillips, T J

2006-04-26T23:59:59.000Z

357

The Global Fund to Fight AIDS, Tuberculosis, and Malaria (Global Fund), founded in 2002, has become the largest  

E-Print Network [OSTI]

, San Francisco · The change in total allocations to the APMEN coun- tries that are eligible for GlobalMAY 2014 1 Background The Global Fund to Fight AIDS, Tuberculosis, and Malaria (Global Fund, amidst global economic stress, the Board of the Global Fund called for a structural reformation

Mullins, Dyche

358

The Global Fund to Fight AIDS, Tuberculosis, and Malaria (Global Fund), founded in 2002, has become the largest  

E-Print Network [OSTI]

Fund allotments to the eliminating countries accounted for 7% of the total Global Fund malariaMAY 2014 1 Background The Global Fund to Fight AIDS, Tuberculosis, and Malaria (Global Fund, amidst global economic stress, the Board of the Global Fund called for a structural reformation

Mullins, Dyche

359

Institutionalizing Unsustainability: The Paradox of Global Climate Governance  

E-Print Network [OSTI]

results in 4į C global warming, sea level rise, specieslevels of greenhouse gases are responsible for incremental global warming.levels as that of the developing countries, the world would not today have faced the threat of global warming.

Stevenson, Hayley

2013-01-01T23:59:59.000Z

360

Proving anthropogenic global warming and disproving natural warming  

E-Print Network [OSTI]

1 Proving anthropogenic global warming and disproving natural warming in global temperatures between 5 and 6o C. Although he was aware that his, these were negligible: global fossil fuel consumption was less than a twentieth

Lovejoy, Shaun

Note: This page contains sample records for the topic "global biogeochemical 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

Infrared absorption spectra, radiative efficiencies, and global warming potentials  

E-Print Network [OSTI]

Infrared absorption spectra, radiative efficiencies, and global warming potentials absorption spectra, radiative efficiencies, and global warming potentials of perfluorocarbons: Comparison. (1995) and combined with atmospheric lifetimes from the literature to determine global warming

Wirosoetisno, Djoko

362

Global Warming: Is There Still Time to Avoid  

E-Print Network [OSTI]

Global Warming: Is There Still Time to Avoid Disastrous Human -Made Climate Change? i.e. Have We simulations. (B) Simulated and observed surface temperature change. #12;21st Century Global Warming Climate) Simulated Global Warming Warming

Hansen, James E.

363

Dynamical failure of Turing patterns  

E-Print Network [OSTI]

The emergence of stable disordered patterns in reactive system on spatially homogenous substrate is studied in the context of vegetation patterns in the semi-arid climatic zone. It is shown that reaction-diffusion systems that allow for Turing instability may exhibit heterogeneous "glassy" steady state, with no characteristic wavelength, if the diffusion rate associated with the "slow" reactant is very small. Upon decreasing the diffusion constant of the slow reactant three phases are identified: strong diffusion yields a stable homogenous phase, intermediate diffusion implies Turing (crystal like) patterns while in the slow diffusion limit the glassy state is the generic stable solution. In this disordered phase the dynamics is of crucial importance, with strong differences between local and global initiation.

Alon Manor; Nadav M. Shnerb

2006-05-21T23:59:59.000Z

364

Expanding Global Network: Discovery to Delivery The United States ranks #1 in innovation. Purdue is preparing for the 21st century global  

E-Print Network [OSTI]

challenges ≠ global health, global competitiveness, global energy security, global warming, global and visibility that Purdue enjoys at all levels globally. ∑ Provide global experience for Purdue facultyExpanding Global Network: Discovery to Delivery The United States ranks #1 in innovation. Purdue

365

Global Social Media Directory: A Resource Guide  

SciTech Connect (OSTI)

The Global Social Media Directory is a resource guide providing information on social networking services around the globe. This information changes rapidly, therefore, this document will be updated on a regular basis and as funding permits.

Noonan, Christine F.; Piatt, Andrew W.

2014-10-23T23:59:59.000Z

366

Tax distortions and global climate policy  

E-Print Network [OSTI]

We consider the efficiency implications of policies to reduce global carbon emissions in a world with pre-existing tax distortions. We first show that the weak double dividend, the proposition that the welfare improvement ...

Babiker, Mustafa H.M.; Metcalf, Gilbert E.; Reilly, John M.

367

Frontiers in Global Change Seminar Series presents ...  

E-Print Network [OSTI]

Frontiers in Global Change Seminar Series presents ... The Frozen Ocean of Snowball Earth Monday in the interaction of solar radiation with snow, clouds, and sea ice, and their role in climate. His work has driven

368

Diplomarbeit Test der Dynamik zweier globaler  

E-Print Network [OSTI]

Diplomarbeit Test der Dynamik zweier globaler Wettervorhersagemodelle des Deutschen Wetterdienstes: Der Held-Suarez Test vorgelegt von Christiane Jablonowski Bonn, September 1998 Meteorologisches.1 Tests von globalen Zirkulationsmodellen . . . . . . . . . . . . . . . . . . . . . 3 1.1.1 Test von

Jablonowski, Christiane

369

Sulfuryl fluoride in the global atmosphere  

E-Print Network [OSTI]

The first calibrated high-frequency, high-precision, in situ atmospheric and archived air measurements of the fumigant sulfuryl fluoride (SO[subscript 2]F[subscript 2]) have been made as part of the Advanced Global Atmospheric ...

Muhle, J.

370

Global supply chain design and optimization methodology  

E-Print Network [OSTI]

The work for this thesis was performed at Honeywell in the Automation and Control Solutions (ACS) division. The project focuses on ACS's manufacturing strategy regarding its global supply chain design, primarily discussing ...

Henkle, Aimee L. (Aimee Leigh), 1975-

2004-01-01T23:59:59.000Z

371

Evolving a global armaments logistics strategy  

E-Print Network [OSTI]

Few companies globally source and manage commercial transportation for frequent and high volumes of explosive cargo for the U. S. Department of Defense. U.S. regulations are strict and economically competitive options are ...

Peck, Nathan (Nathan W.)

2009-01-01T23:59:59.000Z

372

Key Implications of the Global Economic Environment  

E-Print Network [OSTI]

Key Implications of the Global Economic Environment For PCT Filings: A Survey of the Issues DMI...............................................................................9 Annex 1: Incentives for Patent Filing: The Analytical Framework...........................11 I-1 Intellectual property, innovation, and economic growth.................................13 2-2 Individual

Lansky, Joshua

373

Integrated decision support model for global sourcing  

E-Print Network [OSTI]

Over the last decade, the U.S. aircraft industry has experienced increasing levels of international integration as companies seek to access global talent and resources, cut production costs, spread financial risk, and ...

Mroczkowski, Victor A. (Victor Adam)

2008-01-01T23:59:59.000Z

374

HAS TECHNOLOGY ASSESSMENT KEPT PACE WITH GLOBALIZATION?  

E-Print Network [OSTI]

HAS TECHNOLOGY ASSESSMENT KEPT PACE WITH GLOBALIZATION? bridges vol. 18, July 2008 / Pielke makers would benefit from an authoritative, independent perspective on technology assessment of renewable energy technologies; and the US Congress is considering implementing laws to regulate speculation

Colorado at Boulder, University of

375

A High-Resolution Global Climate Simulation  

SciTech Connect (OSTI)

A major factor limiting the quality and usefulness of global climate models is the coarse spatial resolution of these models. Global climate models today are typically run at resolutions of {approx}300 km (or even coarser) meaning that the smallest features represented are 300 km across. As Figure 1 shows, this resolution does not allow adequate representation of small or even large topographic features (e.g. the Sierra Nevada mountains). As a result of this and other problems, coarse-resolution global models do not come close to accurately simulating climate on regional spatial scales (e.g. within California). Results on continental and larger sales are much more realistic. An important consequence of this inability to simulate regional climate is that global climate model results cannot be used as the basis of assessments of potential societal impacts of climate change (e.g. effects on agriculture in the Central Valley, on management of water resources, etc.).

Duffy, P B

2001-01-23T23:59:59.000Z

376

Estimates of Cabbeling in the Global Ocean  

E-Print Network [OSTI]

Owing to the larger thermal expansion coefficient at higher temperatures, more buoyancy is put into the ocean by heating than is removed by cooling at low temperatures. The authors show that, even with globally balanced ...

Schmitt, Raymond W.

377

Global manufacturing model and case studies  

E-Print Network [OSTI]

provision. This research provides information that should contribute to a better understanding of being globally competitive and helps a company to be able to make a wise move against its competitors....

Kijtawesataporn, Komsun

2003-01-01T23:59:59.000Z

378

Global Energy: Supply, Demand, Consequences, Opportunities  

ScienceCinema (OSTI)

July 29, 2008 Berkeley Lab lecture: Arun Majumdar, Director of the Environmental Energy Technologies Division, discusses current and future projections of economic growth, population, and global energy demand and supply, and explores the implications of these trends for the environment.

Arun Majumdar

2010-01-08T23:59:59.000Z

379

Essays on global non-market strategy  

E-Print Network [OSTI]

This dissertation is centrally concerned with the management of a firm's global non-market environment. The non-market environment of a given firm is conceived as the set of relationships, confrontational or collaborative, ...

Lucea, Rafael

2007-01-01T23:59:59.000Z

380

Needed : a realistic strategy for global warming  

E-Print Network [OSTI]

Through a brief look at the science and economics of climate, the authors show that if climate change turns out to be a serious threat, an effective response will require a substantial and very long-term global effort. ...

Jacoby, Henry D.; Prinn, Ronald G.; Schmalensee, Richard.

Note: This page contains sample records for the topic "global biogeochemical 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

Global Warming Effects on Us Hurricane Damage  

E-Print Network [OSTI]

While many studies of the effects of global warming on hurricanes predict an increase in various metrics of Atlantic basin-wide activity, it is less clear that this signal will emerge from background noise in measures of ...

Emanuel, Kerry Andrew

382

Global Climate Change and National Security  

E-Print Network [OSTI]

5/16/2014 1 Global Climate Change and National Security RADM Jon White Oceanographer and Navigator months. · Oil, gas, and mineral resource exploitation expected to continue · Production/transportatio n

Howat, Ian M.

383

Global expansion strategies for software firms  

E-Print Network [OSTI]

The business competition in the software industry is increasingly becoming a global competition. In this era with a fast-paced innovative environment, strategy plays an important role for managers in software companies in ...

Yoden, Michihiko

2014-01-01T23:59:59.000Z

384

Work distribution in global product development organizations  

E-Print Network [OSTI]

The evolution of the internet, digital design tools, and more importantly, increasing access to global markets and workforce, has increased the interest of firms in offshoring their engineering and product development ...

Tripathy, Anshuman

2010-01-01T23:59:59.000Z

385

Sales & operations planning in a global business  

E-Print Network [OSTI]

As companies become more global and begin to outsource manufacturing and other services, the uncertainty in the supply resource increases. Demand uncertainties increase as these same companies expand into new countries to ...

Honstain, Christopher Michael

2007-01-01T23:59:59.000Z

386

Columbia University Office of Global Programs  

E-Print Network [OSTI]

Columbia University Office of Global Programs General Resources for Going Abroad For undergraduate.............................................................................................................................. 3 COLUMBIA CONTACTS Congratulations on your decision to undertake an international experience as part of your Columbia education

Hone, James

387

1 Global Change Research for Sustainable Development  

E-Print Network [OSTI]

. Keywords: Global change; climate change; natural resources; poverty; sus- tainable development; human to walk further to find water in the dry season. In Bangladesh and Viet Nam, it means that small

Richner, Heinz

388

Never Stand Still Global Education and  

E-Print Network [OSTI]

for departure 20 On your return 21 Other Global Education Options 23 How to apply 24 Resources 24 Quick links 25. Belarus Bangladesh Azerb. Austria A u s t r a l i a Armenia Angola Algeria Albania Afghanistan Western

New South Wales, University of

389

Recent increases in global HFC-23 emissions  

E-Print Network [OSTI]

of U.S. greenhouse gas emissions and sinks: 1990-2007, Rep.A. Lindley (2007), Global emissions of HFC-23 estimated to2009), Greenhouse Gas Emissions Data, http://unfccc.int/ghg_

2010-01-01T23:59:59.000Z

390

Water vapor and the dynamics of climate changes  

E-Print Network [OSTI]

Water vapor is not only Earth's dominant greenhouse gas. Through the release of latent heat when it condenses, it also plays an active role in dynamic processes that shape the global circulation of the atmosphere and thus climate. Here we present an overview of how latent heat release affects atmosphere dynamics in a broad range of climates, ranging from extremely cold to extremely warm. Contrary to widely held beliefs, atmospheric circulation statistics can change non-monotonically with global-mean surface temperature, in part because of dynamic effects of water vapor. For example, the strengths of the tropical Hadley circulation and of zonally asymmetric tropical circulations, as well as the kinetic energy of extratropical baroclinic eddies, can be lower than they presently are both in much warmer climates and in much colder climates. We discuss how latent heat release is implicated in such circulation changes, particularly through its effect on the atmospheric static stability, and we illustrate the circul...

Schneider, Tapio; Levine, Xavier

2009-01-01T23:59:59.000Z

391

Conference for Biomass and Energy, Copenhagen, 1996 published by Elsevier A DYNAMICS-AS-USUAL DEVELOPMENT AS BORDERCONDITION  

E-Print Network [OSTI]

9th Conference for Biomass and Energy, Copenhagen, 1996 ­ published by Elsevier 1 A DYNAMICS-AS-USUAL DEVELOPMENT AS BORDERCONDITION FOR THE IMPLEMENTATION OF GLOBAL BIOMASS ENERGY STRATEGIES G. AHAMER* , S.Read@massey.ac.nz ABSTRACT Before envisaging global strategies for enhanced use of biomass for energy, the present

Keeling, Stephen L.

392

Global Analysis of Synchronization in Coupled Maps  

E-Print Network [OSTI]

We introduce a new method for determining the global stability of synchronization in systems of coupled identical maps. The method is based on the study of invariant measures. Besides the simplest non-trivial example, namely two symmetrically coupled tent maps, we also treat the case of two asymmetrically coupled tent maps as well as a globally coupled network. Our main result is the identification of the precise value of the coupling parameter where the synchronizing and desynchronizing transitions take place.

Juergen Jost; Kiran M. Kolwankar

2005-12-02T23:59:59.000Z

393

Climate Models from the Joint Global Change Research Institute  

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

Staff at the Joint Institute develop and use models to simulate the economic and physical impacts of global change policy options. The GCAM, for example, gives analysts insight into how regional and national economies might respond to climate change mitigation policies including carbon taxes, carbon trading, and accelerated deployment of energy technology. Three available models are Phoenix, GCAM, and EPIC. Phoenix is a global, dynamic recursive, computable general equilibrium model that is solved in five-year time steps from 2005 through 2100 and divides the world into twenty-four regions. Each region includes twenty-six industrial sectors. Particular attention is paid to energy production in Phoenix. There are nine electricity-generating technologies (coal, natural gas, oil, biomass, nuclear, hydro, wind, solar, and geothermal) and four additional energy commodities: crude oil, refined oil products, coal, and natural gas. Phoenix is designed to answer economic questions related to international climate and energy policy and international trade. Phoenix replaces the Second Generation Model (SGM) that was formerly used for general equilibrium analysis at JGCRI. GCAM is the Global Change Assessment Model, a partial equilibrium model of the world with 14 regions. GCAM operates in 5 year time steps from 1990 to 2095 and is designed to examine long-term changes in the coupled energy, agriculture/land-use, and climate system. GCAM includes a 151-region agriculture land-use module and a reduced form carbon cycle and climate module in addition to its incorporation of demographics, resources, energy production and consumption. The model has been used extensively in a number of assessment and modeling activities such as the Energy Modeling Forum (EMF), the U.S. Climate Change Technology Program, and the U.S. Climate Change Science Program and IPCC assessment reports. GCAM is now freely available as a community model. The Environmental Policy Integrated Climate (EPIC) Model is a process-based agricultural systems model composed of simulation components for weather, hydrology, nutrient cycling, pesticide fate, tillage, crop growth, soil erosion, crop and soil management and economics. Staff at PNNL have been involved in the development of this model by integrating new sub-models for soil carbon dynamics and nitrogen cycling.

394

ORAU Science Education Program (SEP) Global Change Education...  

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

ORAU Science Education Program (SEP) Global Change Education Program (GCEP) PIA, Office of Information Resources ORAU Science Education Program (SEP) Global Change Education...

395

National Conference and Global Forum on Science, Policy and the...  

Energy Savers [EERE]

National Conference and Global Forum on Science, Policy and the Environment Energy and Climate Change National Conference and Global Forum on Science, Policy and the Environment...

396

Supercomputers Fuel Global High-Resolution Climate Models  

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

Supercomputers Fuel Global High-Resolution Climate Models Supercomputers Fuel Global High-Resolution Climate Models Berkeley Lab Researcher Says Climate Science is Entering New...

397

Working Fluids Low Global Warming Potential Refrigerants - 2013...  

Energy Savers [EERE]

Working Fluids Low Global Warming Potential Refrigerants - 2013 Peer Review Working Fluids Low Global Warming Potential Refrigerants - 2013 Peer Review Emerging Technologies...

398

accuracy integrated global: Topics by E-print Network  

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

Cortical systems for local and global integration in discourse comprehension Giovanna Egidi a, Biology and Medicine Websites Summary: Cortical systems for local and global...

399

Sectoral trends in global energy use and greenhouse gas emissions  

E-Print Network [OSTI]

values. Figure 7. Global Primary Energy by End-Use Sector,Scenario Figure 8. Global Primary Energy by End-Use Sector,

2006-01-01T23:59:59.000Z

400

Global Optimization of Chemical Reactors and Kinetic Optimization  

E-Print Network [OSTI]

Model; 3-D; Monolith; Reactor; Optimization Introduction TheAngeles Global Optimization of Chemical Reactors and KineticGlobal Optimization of Chemical Reactors and Kinetic

ALHUSSEINI, ZAYNA ISHAQ

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "global biogeochemical 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

Characterization of the Mouse Brain Proteome Using Global Proteomic...  

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

the Mouse Brain Proteome Using Global Proteomic Analysis Complemented with Cysteinyl-Peptide Enrichment. Characterization of the Mouse Brain Proteome Using Global Proteomic...

402

Department of Energy Releases Global Nuclear Energy Partnership...  

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

Global Nuclear Energy Partnership Strategic Plan Department of Energy Releases Global Nuclear Energy Partnership Strategic Plan January 10, 2007 - 9:59am Addthis WASHINGTON, DC -...

403

Global Potential of Energy Efficiency Standards and Labeling Programs  

E-Print Network [OSTI]

represents 11% of total global primary energy (Price ettotal of 14 Gt, which is 54 percent of the total estimated global energy-

McNeil, Michael A

2008-01-01T23:59:59.000Z

404

Global optimization of expensive black box problems with a known ...  

E-Print Network [OSTI]

Abstract In this paper we propose an algorithm for the global optimization of ... which this step is performed by globally optimizing a suitable merit function on.

andrea

405

Potential Effect of Pollutantn Emissions on Global Warming: First...  

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

Potential Effect of Pollutantn Emissions on Global Warming: First Comparisong Using External Costs on Urban Buses Potential Effect of Pollutantn Emissions on Global Warming: First...

406

Thermodynamic Evaluation of Low-Global-Warming-Potential Refrigerants...  

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

Thermodynamic Evaluation of Low-Global-Warming-Potential Refrigerants Thermodynamic Evaluation of Low-Global-Warming-Potential Refrigerants Lead Performer: National Institute of...

407

Global Volcano Proportional Economic Loss Risk Distribution Projection: Robinson  

E-Print Network [OSTI]

Global Volcano Proportional Economic Loss Risk Distribution Projection: Robinson Like Total Deichmann, Arthur L. Lerner-Lam, and Margaret Arnold. 2005. Natural Disaster Hotspots: A Global Risk

Columbia University

408

Sustainability for the Global Biofuels Industry: Minimizing Risks...  

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

Sustainability for the Global Biofuels Industry: Minimizing Risks and Maximizing Opportunities Sustainability for the Global Biofuels Industry: Minimizing Risks and Maximizing...

409

2010 Hydrogen and Fuel Cell Global Commercialization & Development...  

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

2010 Hydrogen and Fuel Cell Global Commercialization & Development Update 2010 Hydrogen and Fuel Cell Global Commercialization & Development Update This report outlines the role...

410

The Global Health Group 50 Beale Street, Suite 1200  

E-Print Network [OSTI]

The Global Health Group 50 Beale Street, Suite 1200 San Francisco, CA 94105, USA tel: 415 Global Health Group Offices, 50 Beale Street, San Francisco, CA. Contact

Klein, Ophir

411

Accelerated molecular dynamics methods  

SciTech Connect (OSTI)

The molecular dynamics method, although extremely powerful for materials simulations, is limited to times scales of roughly one microsecond or less. On longer time scales, dynamical evolution typically consists of infrequent events, which are usually activated processes. This course is focused on understanding infrequent-event dynamics, on methods for characterizing infrequent-event mechanisms and rate constants, and on methods for simulating long time scales in infrequent-event systems, emphasizing the recently developed accelerated molecular dynamics methods (hyperdynamics, parallel replica dynamics, and temperature accelerated dynamics). Some familiarity with basic statistical mechanics and molecular dynamics methods will be assumed.

Perez, Danny [Los Alamos National Laboratory

2011-01-04T23:59:59.000Z

412

The Impact of Global Warming and Air Pollution on Patient Visits in the Emergency Department  

E-Print Network [OSTI]

Review The Impact sf Global Warming and 1 Air pollution onair pollution problems and global warming will effect thesites in the human body. Global Warming Global warming goes

Derlet, Robert W

2001-01-01T23:59:59.000Z

413

EDDY RESOLVING NUTRIENT ECODYNAMICS IN THE GLOBAL PARALLEL OCEAN PROGRAM AND CONNECTIONS WITH TRACE GASES IN THE SULFUR, HALOGEN AND NMHC CYCLES  

SciTech Connect (OSTI)

Ecodynamics and the sea-air transfer of climate relevant trace gases are intimately coupled in the oceanic mixed layer. Ventilation of species such as dimethyl sulfide and methyl bromide constitutes a key linkage within the earth system. We are creating a research tool for the study of marine trace gas distributions by implementing coupled ecology-gas chemistry in the high resolution Parallel Ocean Program (POP). The fundamental circulation model is eddy resolving, with cell sizes averaging 0.15 degree (lat/long). Here we describe ecochemistry integration. Density dependent mortality and iron geochemistry have enhanced agreement with chlorophyll measurements. Indications are that dimethyl sulfide production rates must be adjusted for latitude dependence to match recent compilations. This may reflect the need for phytoplankton to conserve nitrogen by favoring sulfurous osmolytes. Global simulations are also available for carbonyl sulfide, the methyl halides and for nonmethane hydrocarbons. We discuss future applications including interaction with atmospheric chemistry models, high resolution biogeochemical snapshots and the study of open ocean fertilization.

S. CHU; S. ELLIOTT

2000-08-01T23:59:59.000Z

414

POSSIBLE PHASE LOOP FOR THE GLOBAL DECOUPLING.  

SciTech Connect (OSTI)

The two eigentunes Q{sub I} and Q{sub II}, two eigenmode amplitude ratios R{sub I} and R{sub II}, and two eignmode phase differences {Delta}{phi}{sub I} and {Delta}{phi}{sub II}, are defined as the coupling observables for the linear weak difference betatron coupling. Simulations were carried out to investigate their behaviors in global decoupling scans. It was found that the amplitude ratios R{sub I,II} are more sensitive than the tune split when the decoupling scan is approaching the global uncoupled point, and that the phase differences {Delta}{phi}{sub I,II} tell the right global decoupling direction, the right strength combination of the skew quadrupoles or families. The analytical solution to these six coupling observables is calculated through both the strict matrix approach and the perturbation Hamiltonian approach. The constant phase differences in the right decoupling direction hint a possible global decoupling phase loop. Dedicated beam experiments were carried out at the Relativistic Heavy Ion Collider (RHIC). The preliminary results from the beam experiments are presented. These six parameters can be used for the global decoupling in feed-back mode, especially on the non-stop energy ramp.

LUO, Y.; CAMERON, P.; DELLA PENNA, A.; JONES, R.; ET AL.

2005-05-16T23:59:59.000Z

415

On the Chaotic Flux Dynamics in a Long Josephson Junction  

E-Print Network [OSTI]

Flux dynamics in an annular long Josephson junction is studied. Three main topics are covered. The first is chaotic flux dynamics and its prediction via Melnikov integrals. It turns out that DC current bias cannot induce chaotic flux dynamics, while AC current bias can. The existence of a common root to the Melnikov integrals is a necessary condition for the existence of chaotic flux dynamics. The second topic is on the components of the global attractor and the bifurcation in the perturbation parameter measuring the strength of loss, bias and irregularity of the junction. The global attractor can contain co-existing local attractors e.g. a local chaotic attractor and a local regular attractor. In the infinite dimensional phase space setting, the bifurcation is very complicated. Chaotic attractors can appear and disappear in a random fashion. Three types of attractors (chaos, breather, spatially uniform and temporally periodic attractor) are identified. The third topic is ratchet effect. Ratchet effect can be achieved by a current bias field which corresponds to an asymmetric potential, in which case the flux dynamics is ever lasting chaotic. When the current bias field corresponds to a symmetric potential, the flux dynamics is often transiently chaotic, in which case the ratchet effect disappears after sufficiently long time.

Z. C. Feng; Y. Charles Li

2009-07-16T23:59:59.000Z

416

GLOBAL GEODYSSEA NETWORK N b FULL NAME COUNTRY LAT. LON.  

E-Print Network [OSTI]

: Global ASEAN Network according to J. Rais mail (1993, November 2) Tectonic settings are from Addicott

Vigny, Christophe

417

Potential Land Use Implications of a Global Biofuels Industry  

E-Print Network [OSTI]

In this paper we investigate the potential production and implications of a global biofuels industry. We

Gurgel, Angelo C.

418

IBM Global Business Services IBM Institute for Business Value  

E-Print Network [OSTI]

and sustainability Building a new financial order The global financial markets industry has been experiencing

419

International Forestry and Global Issues 18 May 2010, Nancy, France  

E-Print Network [OSTI]

International Forestry and Global Issues 18 May 2010, Nancy, France Global Wood Markets Geneva, Switzerland #12;International Forestry and Global Issues 18 May 2010, Nancy, France Presentation Forestry and Global Issues 18 May 2010, Nancy, France I. Introduction Why's this important? · Trends

420

Total Cost of Ownership Considerations in Global Sourcing Processes  

E-Print Network [OSTI]

Total Cost of Ownership Considerations in Global Sourcing Processes Robert Alard, Philipp Bremen and microeconomic aspects which can also be largely used independently. Keywords: Global Supply Networks, Total Cost of Ownership, Global Total Cost of Ownership, Global Procurement, Outsourcing, Supplier Evaluation, Country

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "global biogeochemical 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

Enumerating Global States of a Distributed Computation Vijay K. Garg  

E-Print Network [OSTI]

, then the total number of con- sistent global states can be as large as √?¬ī √? ¬Ķ. Detecting a simple globalEnumerating Global States of a Distributed Computation Vijay K. Garg¬£ Department of Electrical@ece.utexas.edu ABSTRACT Global predicate detection is a fundamental problem in distributed computing in the areas

Garg, Vijay

422

www.kostic.niu.edu Global Energy and Future:Global Energy and Future  

E-Print Network [OSTI]

Most of BC history Population in millions Time in history www.kostic.niu.edu Earth Energy Balance1 www.kostic.niu.edu Global Energy and Future:Global Energy and Future: Importance of Energy Conservation andImportance of Energy Conservation and Renewable and Alternative Energy Resources

Kostic, Milivoje M.

423

Constraining global isoprene emissions with Global Ozone Monitoring Experiment (GOME) formaldehyde column measurements  

E-Print Network [OSTI]

Constraining global isoprene emissions with Global Ozone Monitoring Experiment (GOME) formaldehyde emission estimates are highly uncertain because of a lack of direct observations. Formaldehyde (HCHO the observation of this trace gas to help constrain isoprene emissions. We use HCHO column observations from

Chance, Kelly

424

Canada'sRoleinGlobalHealth Thinking Globally,Acting Locally  

E-Print Network [OSTI]

Canada'sRoleinGlobalHealth Thinking Globally,Acting Locally @McMaster Innovation Park March 22 & 23 in Canada. Distinguished as a leading national and international expert in Indigenous health research, Dr. Reading has been recognized by academics, governments, and by Aborignal leadership in Canada for his

Thompson, Michael

425

INTERANNUAL VARIABILITY IN GLOBAL SOIL RESPIRATION (1980-1994) Interannual Variability in Global Soil  

E-Print Network [OSTI]

INTERANNUAL VARIABILITY IN GLOBAL SOIL RESPIRATION (1980-1994) NDP-081 Interannual Variability in Global Soil Respiration on a 0.5 Degree Grid Cell Basis (1980-1994) Contributed by: James W. Raich 1, Tennessee 37831-6335. The ORNL is managed by UT-Battelle, LLC for the U.S. DEPARTMENT OF ENERGY under

426

Global Climate Change,Global Climate Change, Land Cover Change, andLand Cover Change, and  

E-Print Network [OSTI]

1 Global Climate Change,Global Climate Change, Land Cover Change, andLand Cover Change Changes · Due to ­ Climate Change ­ Land Cover / Land Use Change ­ Interaction of Climate and Land Cover Change · Resolution ­ Space ­ Time Hydro-Climatic Change · Variability vs. Change (Trends) · Point data

427

Session 1Session 1 Public Private Partnerships: GlobalPublic Private Partnerships: Global  

E-Print Network [OSTI]

Electricity Law permits private sector participation · Mini-grid (generation, distribution) rural connections) · Expected results: 3000 new connections NEPAL · Electricity Act allows private/ communitySession 1Session 1 Public Private Partnerships: GlobalPublic Private Partnerships: Global

428

Fly to india ETH Global is responsible for implementing the global strategy of ETH Zurich.  

E-Print Network [OSTI]

Fly to india ETH Global is responsible for implementing the global strategy of ETH Zurich. It fosters international partnerships in research and education and positions ETH Zurich as a leading of you must be ­ Bachelor's or Master's students of ETH Zurich; ­ communicative and enthusiastic

Imamoglu, Atac

429

Mercedes Volait, InVisu (CNRS/INHA) Egypt (1914-1954): Global architecture before globalization  

E-Print Network [OSTI]

Mercedes Volait, InVisu (CNRS/INHA) Egypt (1914-1954): Global architecture before globalization by Egypt's rulers and its ever growing state apparatus in the wake of the Ottoman reforms of the 1830s The British occupation of Egypt from 1882 to 1922 (with Protectorate status from 1914 to 1922) did not alter

Boyer, Edmond

430

Physics results from dynamical overlap fermion simulations  

E-Print Network [OSTI]

I summarize the physics results obtained from large-scale dynamical overlap fermion simulations by the JLQCD and TWQCD collaborations. The numerical simulations are performed at a fixed global topological sector; the physics results in the theta-vacuum is reconstructed by correcting the finite volume effect, for which the measurement of the topological susceptibility is crucial. Physics applications we studied so far include a calculation of chiral condensate, pion mass, decay constant, form factors, as well as (vector and axial-vector) vacuum polarization functions and nucleon sigma term.

Shoji Hashimoto

2008-11-08T23:59:59.000Z

431

Global coherence of dust density waves  

SciTech Connect (OSTI)

The coherence of self-excited three-dimensional dust density waves has been experimentally investigated by comparing global and local wave properties. For that purpose, three-dimensional dust clouds have been confined in a radio frequency plasma with thermophoretic levitation. Global wave properties have been measured from the line-of-sight integrated dust density obtained from homogenous light extinction measurements. Local wave properties have been obtained from thin, two-dimensional illuminated laser slices of the cloud. By correlating the simultaneous global and local wave properties, the spatial coherence of the waves has been determined. We find that linear waves with small amplitudes tend to be fragmented, featuring an incoherent wave field. Strongly non-linear waves with large amplitudes, however, feature a strong spatial coherence throughout the dust cloud, indicating a high level of synchronization.

Killer, Carsten; Melzer, Andrť [Institut fŁr Physik, Ernst-Moritz-Arndt-Universitšt Greifswald, 17489 Greifswald (Germany)

2014-06-15T23:59:59.000Z

432

Global climate change and international security.  

SciTech Connect (OSTI)

This report originates in a workshop held at Sandia National Laboratories, bringing together a variety of external experts with Sandia personnel to discuss 'The Implications of Global Climate Change for International Security.' Whatever the future of the current global warming trend, paleoclimatic history shows that climate change happens, sometimes abruptly. These changes can severely impact human water supplies, agriculture, migration patterns, infrastructure, financial flows, disease prevalence, and economic activity. Those impacts, in turn, can lead to national or international security problems stemming from aggravation of internal conflicts, increased poverty and inequality, exacerbation of existing international conflicts, diversion of national and international resources from international security programs (military or non-military), contribution to global economic decline or collapse, or international realignments based on climate change mitigation policies. After reviewing these potential problems, the report concludes with a brief listing of some research, technology, and policy measures that might mitigate them.

Karas, Thomas H.

2003-11-01T23:59:59.000Z

433

Tariffs with Dynamic Supply Response  

E-Print Network [OSTI]

Giannini FDN iibrary TARIFFS WITH DYNAMIC SUPPLY RESWNSEpaper studies the optimal tariff in a dynamic framework. Thesellers, the optimal tariff is dynam- ically inconsistent;

Karp, Larry

1985-01-01T23:59:59.000Z

434

Global Climate Change Impacts:Global Climate Change Impacts: Implications for Climate EngineeringImplications for Climate Engineering  

E-Print Network [OSTI]

Global Climate Change Impacts:Global Climate Change Impacts: Implications for Climate Engineering Center Global Climate Change Impacts in the United States October 29, 2009 #12;2Global Climate Change Impacts in the United States 2 Response Strategies to ClimateResponse Strategies to Climate ChangeChange

Polz, Martin

435

The New Global War on Malaria 305 The global control of malaria has followed a tortuous path during the past  

E-Print Network [OSTI]

The New Global War on Malaria 305 The global control of malaria has followed a tortuous path during of the past century. The New Global War on Malaria Jeffrey D. Sachs and Raymond G. Chambers #12;Key Health-free 1965 #12;The New Global War on Malaria 307 It is important to understand each of these ecological

436

What Global Warming Looks Like The July 2010 global map of surface temperature anomalies (Figure 1), relative to the average  

E-Print Network [OSTI]

What Global Warming Looks Like The July 2010 global map of surface temperature anomalies (Figure 1 anomalies an example of what we can expect global warming to look like? Maps of temperature anomalies, such as Figure 1, are useful for helping people understand the role of global warming in extreme events

437

"Global warming and global cooling are physical phenomenon. But the battle over these real or presumed developments is a  

E-Print Network [OSTI]

"Global warming and global cooling are physical phenomenon. But the battle over these real of catastrophic global warming the greatest hoax ever perpetrated on the American people" What is climate change we have ever seen" What is climate change? Lord Nicholas Stern, October 2006 #12;"Global warming

Baez, John

438

Sensitivity of global wildfire occurrences to various factors in the context of global change1 and J. O. Kaplan3  

E-Print Network [OSTI]

18 meteorology driven by 2000-2050 climate change are found to increase the global annual total191 Sensitivity of global wildfire occurrences to various factors in the context of global change1 Y of global change (including changes in climate,11 land use/land cover, and population density) on wildfire

Wu, Shiliang

439

Global Distributions and Natural Sources of Brominated very Short-Lived Substances  

E-Print Network [OSTI]

VSLS is likely controlled by complex biogeochemical factors in the ecosystems. CH_(2)Br_(2) was thought to be derived from the same source(s) as CHBr_(3), but results presented in this dissertation suggest they may in fact be derived from disparate sources...

Liu, Yina

2013-07-09T23:59:59.000Z

440

Global optimization for the phase stability problem  

SciTech Connect (OSTI)

The Gibbs tangent plane criterion is an important tool in determining the quality of obtained solutions to the phase and chemical equilibrium problem. The ability to determine if a postulated solution is thermodynamically stable is very useful in the search for the equilibrium solution. In this work simpler formulations are presented for the phase stability problem where non-ideal liquid phases are modeled using the NRTL and UNIQUAC models. It is shown how the global minimum of the tangent plane distance function can be obtained. Computational results demonstrate the efficiency of the proposed global optimization algorithms.

Floudas, C.; McDonald, C.

1994-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "global biogeochemical 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

Global Environment Facility (GEF) | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to: navigation,GigaCrete Inc JumpGland,GlenrockGlobal EnergyGlobal

442

Sandia National Laboratories: Global Climate & Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik Spoerke SSLS Exhibit at ExploraGlobal Sandia Co-HostsTheGlobal Climate

443

Essays in dynamic contracting  

E-Print Network [OSTI]

This thesis examines three models of dynamic contracting. The first model is a model of dynamic moral hazard with partially persistent states, and the second model considers relational contracts when the states are partially ...

Kwon, Suehyun

2012-01-01T23:59:59.000Z

444

Dynamics of structural priming†  

E-Print Network [OSTI]

for understanding various aspects of syntactic priming. Cognitive processes are modelled as dynamical systems that can change their behaviour when they process information. We use these dynamical systems to investigate how each episode of language comprehension...

Malhotra, Gaurav

2009-01-01T23:59:59.000Z

445

Categorical Introduction to Dynamical Systems Symbolic Dynamical Systems  

E-Print Network [OSTI]

Categorical Introduction to Dynamical Systems Symbolic Dynamical Systems Symbolic Embedding Examples Results Embeddings in Symbolic Dynamical Systems Jonathan Jaquette Swarthmore College July 22, 2009 Jonathan Jaquette Embeddings in Symbolic Dynamical Systems #12;Categorical Introduction

Kahng, Byung-Jay

446

Dynamics of Carroll Particles  

E-Print Network [OSTI]

We investigate particles whose dynamics is invariant under the Carroll group. Although a single free such Carroll particle has no non-trivial dynamics (`the Carroll particle does not move') we show that there exists non-trivial dynamics for a set of interacting Carroll particles. Furthermore, we gauge the Carroll algebra and couple the Carroll particle to these gauge fields. It turns out that for such a coupled system even a single Carroll particle can have non-trivial dynamics.

Eric Bergshoeff; Joaquim Gomis; Giorgio Longhi

2014-05-31T23:59:59.000Z

447

Intramolecular and nonlinear dynamics  

SciTech Connect (OSTI)

Research in this program focuses on three interconnected areas. The first involves the study of intramolecular dynamics, particularly of highly excited systems. The second area involves the use of nonlinear dynamics as a tool for the study of molecular dynamics and complex kinetics. The third area is the study of the classical/quantum correspondence for highly excited systems, particularly systems exhibiting classical chaos.

Davis, M.J. [Argonne National Laboratory, IL (United States)

1993-12-01T23:59:59.000Z

448

Dynamics of Anisotropic Universes  

E-Print Network [OSTI]

We present a general study of the dynamical properties of Anisotropic Bianchi Universes in the context of Einstein General Relativity. Integrability results using Kovalevskaya exponents are reported and connected to general knowledge about Bianchi dynamics. Finally, dynamics toward singularity in Bianchi type VIII and IX universes are showed to be equivalent in some precise sence.

Jerome Perez

2006-03-30T23:59:59.000Z

449

Atmospheric Dynamics II Instructor  

E-Print Network [OSTI]

AT602 Atmospheric Dynamics II 2 credits Instructor: David W. J. Thompson davet: An Introduction to Dynamic Meteorology, 5th Edition, Academic Press (recommended) · Marshall, J., and Plumb, R. A., 2008: Atmosphere, Ocean, and Climate Dynamics: An Introductory Text, Academic Press. · Vallis, G. K

450

Global biosurveillance: enabling science and technology. Workshop background and motivation: international scientific engagement for global security  

SciTech Connect (OSTI)

Through discussion the conference aims to: (1) Identify core components of a comprehensive global biosurveillance capability; (2) Determine the scientific and technical bases to support such a program; (3) Explore the improvement in biosurveillance to enhance regional and global disease outbreak prediction; (4) Recommend an engagement approach to establishing an effective international community and regional or global network; (5) Propose implementation strategies and the measures of effectiveness; and (6) Identify the challenges that must be overcome in the next 3-5 years in order to establish an initial global biosurveillance capability that will have significant positive impact on BioNP as well as public health and/or agriculture. There is also a look back at the First Biothreat Nonproliferation Conference from December 2007. Whereas the first conference was an opportunity for problem solving to enhance and identify new paradigms for biothreat nonproliferation, this conference is moving towards integrated comprehensive global biosurveillance. Main reasons for global biosurveillance are: (1) Rapid assessment of unusual disease outbreak; (2) Early warning of emerging, re-emerging and engineered biothreat enabling reduced morbidity and mortality; (3) Enhanced crop and livestock management; (4) Increase understanding of host-pathogen interactions and epidemiology; (5) Enhanced international transparency for infectious disease research supporting BWC goals; and (6) Greater sharing of technology and knowledge to improve global health.

Cui, Helen H [Los Alamos National Laboratory

2011-01-18T23:59:59.000Z

451

Calculation of the thermodynamic properties at elevated temperatures and pressures of saturated and aromatic high molecular weight solid and liquid hydrocarbons in kerogen, bitumen, petroleum, and other organic matter of biogeochemical interest  

SciTech Connect (OSTI)

To supplement the relatively sparse set of calorimetric data available for the multitude of high molecular weight organic compounds of biogeochemical interest, group additivity algorithms have been developed to estimate heat capacity power function coefficients and the standard molal thermodynamic properties at 25 C and 1 bar of high molecular weight compounds in hydrocarbon source rocks and reservoirs, including crystalline and liquid isoprenoids, steroids, tricyclic diterpenoids, hopanoids, and polynuclear aromatic hydrocarbons. A total of ninety-six group contributions for each coefficient and property were generated from the thermodynamic properties of lower molecular weight reference species for which calorimetric data are available in the literature. These group contributions were then used to compute corresponding coefficients and properties for {approximately}360 representative solid and liquid high molecular weight compounds in kerogen, bitumen, and petroleum for which few or no experimental data are available. The coefficients and properties of these high molecular weight compounds are summarized in tables, together with those of the groups and reference species from which they were generated. The tabulated heat capacity power function coefficients and standard molal thermodynamic properties at 25 C and 1 bar include selected crystalline and liquid regular, irregular and highly branched isoprenoids, tricyclic diterpanes, 17{alpha}(H)- and 17{beta}(H)-hopanes, 5{alpha}(H),14{alpha}(H)-, 5{beta}(H),14{alpha}(H)-, 5{alpha}(H),14{beta}(H)-, and 5{beta}(H),14{beta}(H)-steranes, double ether- and ester-bonded n-alkanes, and various polynuclear aromatic hydrocarbons, including methylated biphenyls, naphthalenes, phenanthrenes, anthracenes, pyrenes, and chrysenes. However, corresponding coefficients and properties for many more saturated and unsaturated high molecular weight hydrocarbons can be estimated from the equations of state group additivity algorithms. Calculations of this kind permit comprehensive thermodynamic description of the chemical evolution of organic matter with increasing depth in sedimentary basins.

Richard, L.; Helgeson, H.C. [Univ. of California, Berkeley, CA (United States). Dept. of Geology and Geophysics] [Univ. of California, Berkeley, CA (United States). Dept. of Geology and Geophysics

1998-12-01T23:59:59.000Z

452

Russia between transition and globalization Olga GARANINA  

E-Print Network [OSTI]

Russia between transition and globalization Olga GARANINA PhD student University Pierre Mendes France of Grenoble (France) St Petersburg State University of Economics and Finance (Russia) Mailing the beginning of the transition. We study the politico-economic configuration in Russia in terms of (i) its

Paris-Sud XI, Université de

453

Who's Going to Get the Goodies Globally?  

E-Print Network [OSTI]

resources in the U.S., coupled with exploding economies in India and China, are straining energy and mineral a chilling presentation about our dwindling mineral resources. After the presentation, Phoenix artist MatthewWho's Going to Get the Goodies Globally? Tuesday, May 7, 2013 12:00 ­ 1:30 p.m. ASU Art Museum

Hall, Sharon J.

454

Global Emergence of Frontier Knowledge November 2013  

E-Print Network [OSTI]

, Infrastructure, Medical and Biologi- cal Engineering, Mineral Resources, Nano Physics, SustainabilityGlobal Emergence of Frontier Knowledge November 2013 Nov. 7th U.Católica (Casa Central) 09:00 Doors, Culture & Body, Earthquakes, Tsunami & Volcanoes, Element & Material Sciences, Food Resource

Yamamoto, Hirosuke

455

Emissions Pricing to Stabilize Global Climate  

E-Print Network [OSTI]

) and the Center for Energy and Environmental Policy Research (CEEPR). These two centers bridge many key areas an interdisciplinary group from two established research centers at MIT: the Center for Global Change Science (CGCS that are most relevant to economic, social, and environmental effects. In turn, the greenhouse gas

456

Global Atmospheric Change and Animal Populations  

E-Print Network [OSTI]

, which are increasing in frequency, also produce large amounts of greenhouse gases (e.g., CO2; methane to increase dramatically (Withgott & Brennan, 2009; Figure 2). Burning of fossil fuels, such as coal, gasoline by 2100 (IPCC 2007). (Approximate contribution to global warming: 33%; Hansen & Sato 2001). Methane (CH4

457

TESLA'S VISION OF THE WIRELESS GLOBAL COMMUNICATIONS  

E-Print Network [OSTI]

TESLA'S VISION OF THE WIRELESS GLOBAL COMMUNICATIONS Ljiljana Trajkovi Communication Networks;January 17, 2005 UBC Ljiljana Trajkovic, Simon Fraser University 2 Road map Tesla in 1890's First wireless;January 17, 2005 UBC Ljiljana Trajkovic, Simon Fraser University 4 Alternate currents Tesla left Edison

Trajkovic, Ljiljana

458

TESLA'S VISION OF THE WIRELESS GLOBAL COMMUNICATIONS  

E-Print Network [OSTI]

, at an AIEE meeting in New York, Tesla presented a lecture entitled "A New System of Alternate Current MotorsTESLA'S VISION OF THE WIRELESS GLOBAL COMMUNICATIONS Ljiljana Trajkovi Communication Networks;March 12, 2004 Kwantlen College Ljiljana Trajkovic, Simon Fraser University 2 Road map Tesla in 1890's

Trajkovic, Ljiljana

459

21 Sustainable Land Management and Global Development  

E-Print Network [OSTI]

427 21 Sustainable Land Management and Global Development: Factors Affecting Land Users' Efforts for Sustainable Development: Foundations, Experiences, and Perspectives 428 North-South perspectives 21 the concept of sustainable develop- ment and a clearer focus on operational implications, Hurni and colleagues

Richner, Heinz

460

GLOBAL OPTIMIZATION FOR THE PHASE STABILITY PROBLEM  

E-Print Network [OSTI]

where nonideal liquid phases can be adequately modeled using the NRTL and UNIQUAC activity coefficient equilibrium one, unlike available local algorithms. For the case of the NRTL equation, the GOP algorithm the NRTL equation. McDonald and Floudas (1994b) also applied a global optimization algorithm when

Neumaier, Arnold

Note: This page contains sample records for the topic "global biogeochemical 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

RenewableS 2011 GLOBAL STATUS REPORT  

E-Print Network [OSTI]

__20112011 RenewableS 2011 GLOBAL STATUS REPORT Full Report at: http://www.ren21.net/Portals/97/documents/GSR/REN21_GSR2011.pdf #12;11 Changes in renewable energy markets, investments, industries, and policies have been so rapid in recent years that perceptions of the status of renewable energy can lag

Kostic, Milivoje M.

462

Constraint satisfaction and global optimization in robotics  

E-Print Network [OSTI]

Constraint satisfaction and global optimization in robotics Arnold Neumaier Universit¨at Wien and Jean-Pierre Merlet INRIA Sophia Antipolis 1 #12;The design, validation, and use of robots poses a num they are going to do. Soon they will be able to do anything they want!" Genesis 11:6. 3 #12;A robot is a machine

Neumaier, Arnold

463

GLOBAL LUMBER/SAWNWOOD COST BENCHMARKING REPORT  

E-Print Network [OSTI]

& Trends 3.2 Global Log Harvest Outlook 3.2.1 Log Price Outlook 3.3 Plantation Pine Log Harvest Outlook 3, FEATURING: Industry Overviews by Country Historical Timber Harvest and Lumber Production Historical Lumber/Log Exports (and By Destination) Manufacturing and Log Costs/Prices for Selected Countries SAWN WOOD

464

GLOBAL DEFORESTATION, TIMBER, AND THE STRUGGLE  

E-Print Network [OSTI]

GLOBAL DEFORESTATION, TIMBER, AND THE STRUGGLE FOR SUSTAINABILITY Making the Label Stick Stephan://www.environmentaldefense.org/documents/157_TimberReport_Deforest.pdf #12;©1997 The Environmental Defense Fund The Environmental Defense Fund Consumption (18) Part III. Timber and Deforestation: Case Studies in Critical Ecosystems (19) A. Temperate

465

GLOBAL DEFORESTATION, TIMBER, AND THE STRUGGLE  

E-Print Network [OSTI]

GLOBAL DEFORESTATION, TIMBER, AND THE STRUGGLE FOR SUSTAINABILITY Making the Label Stick Stephan and Deforestation: Case Studies in Critical Ecosystems (19) A. Temperate and Boreal Deforestation: Background (19) 1 and Consumption (21) Deforestation and Impacts (21) The U.S. Role (22) Nuu-chah-nulth First Nations (22) Haisla

466

LONDON'S GLOBAL UNIVERSITY THE GRAND CHALLENGE OF  

E-Print Network [OSTI]

is under threat from social tension, pollution and climate change. The prospect of global peace and Capacity-Building 11 ­ 14 / Health Effects of Climate Change 15 ­ 16 / Maternal and Child Health 17 ­ 22 security to health informatics and environmental law ­ our world-leading researchers apply their insight

Saunders, Mark

467

8th Global Conference on Sustainable Manufacturing  

E-Print Network [OSTI]

manufacturing in the UAE · Potentials of renewables · Education for sustainability engineering · Green supply8th Global Conference on Sustainable Manufacturing Architecture for Sustainable Engineering for research institutes and industrial partners related to the area of sustainable manufacturing. It enables

Berlin,Technische Universität

468

Networks and globalization policies Douglas R. White  

E-Print Network [OSTI]

9 Networks and globalization policies Douglas R. White 1 This Chapter argues for connecting models economy (e.g., Reichardt and White, 2007), nor of changes of position in the core-periphery economic structure (Smith and White, 1992) entail that core-periphery exchange structures are everywhere

White, Douglas R.

469

Issued March 2004 Global Climate & Energy Project  

E-Print Network [OSTI]

University Objective The objective of this project is to develop optimized nanocomposite materials for high of the project Design of Nanotube-Metal Nanocluster Complex Meeting the Hydrogen Storage Material RequirementsIssued March 2004 Global Climate & Energy Project STANFORD UNIVERSITY Nanomaterials Engineering

Prinz, Friedrich B.

470

MODELING THE GLOBAL PEAKS AND COOLING SY  

E-Print Network [OSTI]

of assessed building energy consumption and indoor air temperature peaks. At last, the coupling of the urban energy consumption. Building uses are an important part of the global energy use thus a good conception until the year 2100 highlight a regular increase building energy consumption and indoor At last

Boyer, Edmond

471

Managing Software Development for Global Health  

E-Print Network [OSTI]

too much refrigeration. #12;Cold chain description · Storage of vaccines from national level to pointManaging Software Development for Global Health Richard Anderson #12;Outline · PATH · The Cold and was in serious trouble · Applying software industry best practices is leading to a positive outcome 3/10/2010 CSE

Anderson, Richard

472

Development of a Scalable Global Discontinuous  

E-Print Network [OSTI]

by building the model in the High Order Method Modeling Environment (HOMME) developed at the National Center, scalability, and the ability to handle complex geometries. However, a major disadvantage of SE atmosphericDevelopment of a Scalable Global Discontinuous Galerkin Atmospheric Model J.M. Dennis, R.D. Nair

Tufo III, Henry M.

473

A Global Compact to End Poverty  

E-Print Network [OSTI]

A Global Compact to End Poverty Jeffrey Sachs on stabilisation, transition and weapons of mass progress. We can realistically envision a world without extreme poverty by the year 2025 because. Sachs, The End of Poverty, 2005. WORLD ECONOMICS ∑ Vol. 6 ∑ No. 4 ∑ October≠December 2005 11 Jeffrey D

474

Pax Global: Noncompliance Determination (2013-SE-1413)  

Broader source: Energy.gov [DOE]

DOE issued a Notice of Noncompliance Determination to Pax Global, Inc. finding that freezer basic models (1) Crosley CCF51; (2) Crosley CCF69; (3) Crosley CCF106; and (4) Daewoo DCF-106W do not comport with the energy conservation standards.

475

Annual Women's Health Forum Global Women's Health  

E-Print Network [OSTI]

5th Annual Women's Health Forum Global Women's Health Hosted by The Stanford WSDM* Center May 21;3 Welcome to the 5th Annual Women's Health Forum - hosted by the Stanford WSDM Center, also known as the Stanford Center for Health Research on Women and Sex Differences in Medicine. The Stanford WSDM Center

Kay, Mark A.

476

GLOBAL BIOFUELS OUTLOOK MAELLE SOARES PINTO  

E-Print Network [OSTI]

Biodiesel Ethanol & Biodiesel No known biofuels program North America: RFS2 & LCFS implementation Growth for Ethanol and at a smaller scale for Biodiesel Source: Hart Energy's Global Biofuels Center Supply Total Demand Ethanol Biodiesel MillionLiters 2010 2015 2020 · Ethanol demand represents 73

477

Towards the global monitoring of biodiversity change  

E-Print Network [OSTI]

at biodiversity conservation inside and outside protected areas [4­6] and at limiting the causes of biodiversityTowards the global monitoring of biodiversity change Henrique M. Pereira1,2,* and H. David Cooper3, Canada, H2Y1N9 Governments have set the ambitious target of reducing biodiversity loss by the year 2010

Pereira, Henrique Miguel

478

AWEA Small Wind Turbine Global Market Study  

E-Print Network [OSTI]

Displaced Carbon Dioxide 17 Building-Mounted Turbines 17 Manufacturing 18 The Global Market 21 Solar Summary Table 1 #12;4 | AMERICAn WInD EnERGy ASSOCIATIOn Based on a 2010 AWEA survey of manufacturers and standardized interconnection regulations, and the appropriation and allocation of federal research

Leu, Tzong-Shyng "Jeremy"

479

4, 35833626, 2007 An integrated global  

E-Print Network [OSTI]

around the world. The integrated model closes both energy and water balances on land surfaces. Global approximately 70% of total water withdrawal in the world. The estimated crop calendar showed good agreement water withdrawal also15 showed fair agreement with country statistics, but tended to underestimate

Paris-Sud XI, Université de

480

CHAPTER THREE Port regions and globalization  

E-Print Network [OSTI]

1 1 CHAPTER THREE Port regions and globalization César Ducruet Published in: Notteboom, T.E., Ducruet, C., De Langen, P.W. (Eds), Ports in Proximity: Competition and Coordination among Adjacent and urbanization, the general manager of the Port of Antwerp (Vleugels, 1969) expressed an optimistic view: "port

Boyer, Edmond

Note: This page contains sample records for the topic "global biogeochemical 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

Corporate Training On-Site Online Global  

E-Print Network [OSTI]

MAKE THE RIGHT MOVE Corporate Training On-Site · Online · Global IMPROVE YOUR COMPETITIVE ADVANTAGE WITH WORLD-CLASS ON-SITE AND ONLINE SOLUTIONS TAILORED TO MEET YOUR BUSINESS AND EMPLOYEE TRAINING NEEDS a competitive advantage depends on how well your staff executes. UCIrvineExtension's Corporate Training helps

Barrett, Jeffrey A.

482

Issued March 2012 Global Climate & Energy Project  

E-Print Network [OSTI]

Issued March 2012 Global Climate & Energy Project STANFORD UNIVERSITY Reactivity of CO2 underground. The research team will focus on understanding the chemical reactions that occur when CO2, researchers will determine the optimum geochemical conditions for converting captured CO2 into carbonates

Straight, Aaron

483

GLOBAL CHANGE AND TIDAL FRESHWATER WETLANDS  

E-Print Network [OSTI]

Chapter 23 GLOBAL CHANGE AND TIDAL FRESHWATER WETLANDS: SCENARIOS AND IMPACTS Scott C. Neubauer Tidal Freshwater Wetlands, edited by Aat Barendregt, Dennis Whigham & Andrew Baldwin 2009, viii + 320pp Publishers GmbH This chapter was originally published in the book ,,Tidal Freshwater Wetlands". The copy

Neubauer, Scott C.

484

Ireland's Global University MSc Forensic Computing &  

E-Print Network [OSTI]

Ireland's Global University MSc Forensic Computing & Cybercrime Investigation (Distance Learning on content considering the needs of digital forensics investigators and computer crime specialists. The UCD research and have developed a number of forensic tools. Depending on the modules taken, you will be able

485

E-Print Network 3.0 - alluvial aquifer nicaragua Sample Search...  

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

significant amounts of detrital plant matter... Biogeochemical Dynamics: Controlling Uranium Mobility and Bioremediation in Contaminated ... Source: Cavalli-Sforza, Luigi -...

486

E-Print Network 3.0 - aquifer microbial community Sample Search...  

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

that sustains microbial communities capable... Biogeochemical Dynamics: Controlling Uranium Mobility and Bioremediation in Contaminated Aquifers... ) at Rifle, Colorado, is a...

487

GLOBAL SIMULATIONS OF MAGNETOROTATIONAL INSTABILITY IN THE COLLAPSED CORE OF A MASSIVE STAR  

SciTech Connect (OSTI)

We performed the first global numerical simulations of magnetorotational instability from a sub-magnetar-class seed magnetic field in core-collapse supernovae. As a result of axisymmetric ideal MHD simulations, we found that the magnetic field is greatly amplified to magnetar-class strength. In the saturation phase, a substantial part of the core is dominated by turbulence, and the magnetic field possesses dominant large-scale components, comparable to the size of a proto-neutron star. A pattern of coherent channel flows, which generally appears during the exponential growth phase in previous local simulations, is not observed in our global simulations. While the approximate convergence in the exponential growth rate is attained by increasing spatial resolution, that of the saturation magnetic field is not achieved due to still large numerical diffusion. Although the effect of the magnetic field on the dynamics is found to be mild, a simulation with a high enough resolution might result in a larger impact.

Sawai, H.; Yamada, S. [Waseda University, Shinjuku, Tokyo 169-8555 (Japan); Suzuki, H., E-mail: hsawai@heap.phys.waseda.ac.jp [Tokyo University of Science, Chiba 278-8510 (Japan)

2013-06-20T23:59:59.000Z

488

Global bifurcations to subcritical magnetorotational dynamo action in Keplerian shear flow  

E-Print Network [OSTI]

Magnetorotational dynamo action in Keplerian shear flow is a three-dimensional, nonlinear magnetohydrodynamic process whose study is relevant to the understanding of accretion and magnetic field generation in astrophysics. Transition to this form of dynamo is subcritical and shares many characteristics of transition to turbulence in non-rotating hydrodynamic shear flows. This suggests that these different fluid systems become active through similar generic bifurcation mechanisms, which in both cases have eluded detailed understanding so far. In this paper, we investigate numerically the bifurcation mechanisms at work in the incompressible Keplerian magnetorotational dynamo problem in the shearing box framework. Using numerical techniques imported from dynamical systems research, we show that the onset of chaotic dynamo action at magnetic Prandtl numbers larger than unity is primarily associated with global homoclinic and heteroclinic bifurcations of nonlinear magnetorotational dynamo cycles. These global bifu...

Riols, A; Cossu, C; Lesur, G; Longaretti, P -Y; Ogilvie, G I; Herault, J

2013-01-01T23:59:59.000Z

489

Dynamical friction in modified Newtonian dynamics  

E-Print Network [OSTI]

We have tested a previous analytical estimate of the dynamical friction timescale in Modified Newtonian Dynamics (MOND) with fully non-linear N-body simulations. The simulations confirm that the dynamical friction timescale is significantly shorter in MOND than in equivalent Newtonian systems, i.e. systems with the same phase-space distribution of baryons and additional dark matter. An apparent conflict between this result and the long timescales determined for bars to slow and mergers to be completed in previous N-body simulations of MOND systems is explained. The confirmation of the short dynamical-friction timescale in MOND underlines the challenge that the Fornax dwarf spheroidal poses to the viability of MOND.

C. Nipoti; L. Ciotti; J. Binney; P. Londrillo

2008-03-31T23:59:59.000Z

490

A microscopic view of accelerated dynamics in deformed polymer glasses  

E-Print Network [OSTI]

A molecular level analysis of segmental trajectories obtained from molecular dynamics simulations is used to obtain the full relaxation time spectrum in aging polymer glasses subject to three different deformation protocols. As in experiments, dynamics can be accelerated by several orders of magnitude, and a narrowing of the distribution of relaxation times during creep is directly observed. Additionally, the acceleration factor describing the transformation of the relaxation time distributions is computed and found to obey a universal dependence on the global strain, independent of age and deformation protocol.

Mya Warren; Joerg Rottler

2010-02-09T23:59:59.000Z

491

New Global Oil & Gas Hub in Oklahoma City | GE Global Research  

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

GE Selects Oklahoma City Site for New Global Hub of Oil & Gas Technology Innovation Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window)...

492

Venture Global Calcasieu Pass, LLC- (Formerly Venture Global LNG, LLC)- 14-88-LNG  

Broader source: Energy.gov [DOE]

The Office of Fossil Energy gives notice of receipt of an application filed on May 13, 2014, by Venture Global LNG, LLC (VGP) requesting long-term, multi-contract authority to export (in addition...

493

Global Development and Environment Institute, Tufts University Global Development and Environment Institute, Tufts University  

E-Print Network [OSTI]

: ∑ Brazil ≠ Sergio Schlesinger ∑ Argentina ≠ Miguel Teubal ∑ Bolivia ≠ Mamerto Pťrez * Perils for small-scale farmers: ∑ Bolivia ≠ Mamerto Pťrez ∑ El Salvador ≠ Renť Rivera ∑ Brazil ≠ Nelson Delgado #12;© Global ≠ creating "agriculture without farmers" * Bolivia ≠ more small farmers, due to losses from growing

494

Effects of global charge conservation on time evolution of cumulants of conserved charges in relativistic heavy ion collisions  

E-Print Network [OSTI]

We investigate the effect of the global charge conservation on the cumulants of conserved charges observed in relativistic heavy ion collisions in a finite rapidity window, $\\Delta\\eta$, with a special emphasis on the time evolution of fluctuations in the hadronic medium. It is argued that the experimental result of the net-electric charge fluctuation observed by ALICE does not receive effects from the global charge conservation, because of the finite diffusion distance of charged particles in the hadronic stage. We emphasize that the magnitude of the effect of the global charge conservation can be estimated experimentally by combining the information on the $\\Delta\\eta$ dependences of various cumulants of conserved charges, similarly to other dynamical properties of the hot medium.

Miki Sakaida; Masayuki Asakawa; Masakiyo Kitazawa

2014-09-24T23:59:59.000Z

495

Global sound modes in mirror traps with anisotropic pressure  

SciTech Connect (OSTI)

Global oscillations of inhomogeneous plasma with frequencies close to the bounce frequency of ions in mirror traps have been studied. It has been shown that, in some cases, the sound can be reflected from the axial plasma inhomogeneity. The ideal magnetohydrodynamic (MHD) model with Chew-Goldberger-Low approximation has been utilized to determine conditions of existence of the standing waves in the mirror-confined plasma. Linearized wave equation for the longitudinal plasma oscillations in thin anisotropic inhomogeneous plasma with finite ? has been derived. The wave equation has been treated numerically. The oscillations are studied for the case of the trap with partially filled loss-cone and the trap with sloshing ions. It has been shown that in cells of the multiple-mirror trap standing waves can exist. The frequency of the wave is of the order of the mean bounce-frequency of ions. In the trap with sloshing ions, the mode supported by the pressure of fast ions could exist. The results of oscillations observation in the experiment on the Gas Dynamic Trap have been presented.

Skovorodin, D. I.; Zaytsev, K. V.; Beklemishev, A. D. [Budker Institute of Nuclear Physics, Novosibirsk State University, Novosibirsk 630090 (Russian Federation)] [Budker Institute of Nuclear Physics, Novosibirsk State University, Novosibirsk 630090 (Russian Federation)

2013-10-15T23:59:59.000Z

496

Sequence information signal processor for local and global string comparisons  

DOE Patents [OSTI]

A sequence information signal processing integrated circuit chip designed to perform high speed calculation of a dynamic programming algorithm based upon the algorithm defined by Waterman and Smith. The signal processing chip of the present invention is designed to be a building block of a linear systolic array, the performance of which can be increased by connecting additional sequence information signal processing chips to the array. The chip provides a high speed, low cost linear array processor that can locate highly similar global sequences or segments thereof such as contiguous subsequences from two different DNA or protein sequences. The chip is implemented in a preferred embodiment using CMOS VLSI technology to provide the equivalent of about 400,000 transistors or 100,000 gates. Each chip provides 16 processing elements, and is designed to provide 16 bit, two's compliment operation for maximum score precision of between -32,768 and +32,767. It is designed to provide a comparison between sequences as long as 4,194,304 elements without external software and between sequences of unlimited numbers of elements with the aid of external software. Each sequence can be assigned different deletion and insertion weight functions. Each processor is provided with a similarity measure device which is independently variable. Thus, each processor can contribute to maximum value score calculation using a different similarity measure.

Peterson, John C. (Alta Loma, CA); Chow, Edward T. (San Dimas, CA); Waterman, Michael S. (Culver City, CA); Hunkapillar, Timothy J. (Pasadena, CA)

1997-01-01T23:59:59.000Z

497

From fusion to total disassembly: global stopping in heavy-ion collisions  

E-Print Network [OSTI]

Using the quantum molecular dynamics model, we aim to investigate the emis- sion of light complex particles, and degree of stopping reached in heavy-ion colli- sions. We took incident energies between 50 and 1000 MeV/nucleon. In addition, central and peripheral collisions and different masses are also considered. We ob- serve that the light complex particles act in almost similar manner as anisotropic ratio. In other words, multiplicity of light complex particles is an indicator of global stopping in heavy-ion collisions. We see that maximum light complex particles and stopping is obtained for heavier masses in central collisions.

Jatinder K. Dhawan; Narinder Dhiman; Aman D. Sood; Rajeev K. Puri

2010-07-12T23:59:59.000Z

498

The effects of LNG-sloshing on the global responses of LNG-carriers  

E-Print Network [OSTI]

in this paper is the global fluid motion which causes non-breaking or non-splash loads on the tank wall; therefore, local phenomena with such strong nonlinearity are not considered. The ship and liquid-cargo motions are coupled by the kinematic and dynamic... of Advisory Committee: Dr. Moo-Hyun Kim The coupling and interactions between ship motion and inner-tank sloshing are investigated by a potential-viscous hybrid method in time domain. For the time domain simulation of vessel motion, the hydrodynamic...

Lee, Seung Jae

2008-10-10T23:59:59.000Z

499

Global MHD modeling of the impact of a solar wind pressure change Kristi A. Keller, Michael Hesse, Maria Kuznetsova, Lutz Rastatter, and Therese Moretto  

E-Print Network [OSTI]

Global MHD modeling of the impact of a solar wind pressure change Kristi A. Keller, Michael Hesse of Michigan, Ann Arbor, Michigan, USA Received 26 February 2001; revised 21 December 2001; accepted 21 December 2001; published 23 July 2002. [1] A sudden increase in the solar wind dynamic pressure compresses

De Zeeuw, Darren L.

500

Persistent Personal Names for Globally Connected Mobile Devices Bryan Ford, Jacob Strauss, Chris Lesniewski-Laas, Sean Rhea, Frans Kaashoek, Robert Morris  

E-Print Network [OSTI]

Persistent Personal Names for Globally Connected Mobile Devices Bryan Ford, Jacob Strauss, Chris personal names. Users assign personal names through an ad hoc device introduction process requiring, and mobile personal devices usu- ally have dynamic IP addresses behind firewalls or net- work address