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1

Science Activities in Biomass  

NLE Websites -- All DOE Office Websites (Extended Search)

Activities in Biomass Curriculum: Biomass Power (organic chemistry, genetics, distillation, agriculture, chemicalcarbon cycles, climatology, plants and energy resources...

2

Final Report: Performance Modeling Activities in PERC2  

Science Conference Proceedings (OSTI)

Progress in Performance Modeling for PERC2 resulted in: • Automated modeling tools that are robust, able to characterize large applications running at scale while simultaneously simulating the memory hierarchies of mul-tiple machines in parallel. • Porting of the requisite tracer tools to multiple platforms. • Improved performance models by using higher resolution memory models that ever before. • Adding control-flow and data dependency analysis to the tracers used in perform-ance tools. • Exploring and developing several new modeling methodologies. • Using modeling tools to develop performance models for strategic codes. • Application of modeling methodology to make a large number of “blind” per-formance predictions on certain mission partner applications, targeting most cur-rently available system architectures. • Error analysis to correct some systematic biases encountered as part of the large-scale blind prediction exercises. • Addition of instrumentation capabilities for communication libraries other than MPI. • Dissemination the tools and modeling methods to several mission partners, in-cluding DoD HPCMO and two DARPA HPCS vendors (Cray and IBM), as well as to the wider HPC community via a series of tutorials.

Allan Snavely

2007-02-25T23:59:59.000Z

3

Chinese Journal of Chemical Engineering, 20(2) 389--399 (2012) Recent Advances in Flame Tomography*  

E-Print Network (OSTI)

-fuel combustion, co-firing biomass with coal and fluid- ized bed combustion. Flame characteristics under to be the main source of energy in many countries in the years to come. Coal-fired power stations are burning an in- creasingly varied range of fuels and fuel blends, in- cluding sub-bituminous and lower volatile

Yan, Yong

4

Technical Bulletin Number 3 Revised January 4, 2011 Formed in 1982 with federal,  

E-Print Network (OSTI)

Board in- cludes 6 representatives from producing state shellfish con- trol agencies, 3 representa sanitation agency. The U.S. Food and Drug Administration ensures the compli- ance of state shellfish sanitation agencies with the Guide for Control of Mollus- can Shellfish. State shellfish sanitation agencies

Florida, University of

5

Measurements of activity in nuclear medicine  

Science Conference Proceedings (OSTI)

... Measurements of activity in nuclear medicine. National Metrology Institutes (NMIs) develop the standards of activity measurement ...

6

Organising software in active environments  

Science Conference Proceedings (OSTI)

In this paper, we investigate the use of logic-based multi-agent systems for modelling active environments. Our case study is an intelligent support system for a so-called “active museum”. We show the approach of structuring the “agent ...

Benjamin Hirsch; Michael Fisher; Chiara Ghidini; Paolo Busetta

2004-09-01T23:59:59.000Z

7

Worldwide activity in IGCC  

SciTech Connect

EPRI has pursued the development of integrated gasification-combined-cycle technology because it is the cleanest method available for making electricity from coal. Now, a decade after the establishment of the first IGCC demonstration plant, environmental regulations are encouraging the adoption of this technology in a number of countries. An unexpected innovation is the use of residual oil as an IGCC feedstock, a practice that evolved naturally as a result of market forces. Experts are hopeful that the current momentum in IGCC will trigger the introduction of the technology in developing countries, many of which rely heavily on coal and oil for power generation. Environmental regulations and a market glut of low-grade fossil fuels are spurring an unprecedented number of integrated gasification combined-cycle projects worldwide. These projects are described.

Lamarre, L.

1994-07-01T23:59:59.000Z

8

Activated transport in AMTEC electrodes  

DOE Green Energy (OSTI)

Transport of alkali metal atoms through porous cathodes of alkali metal thermal-to-electric converter (AMTEC) cells is responsible for significant, reducible losses in the electrical performance of these cells. Experimental evidence for activated transport of metal atoms at grain surfaces and boundaries within some AMTEC electrodes has been derived from temperature dependent studies as well as from analysis of the detailed frequency dependence of ac impedance results for other electrodes, including thin, mature molybdenum electrodes which exhibit transport dominated by free molecular flow of sodium gas at low frequencies or dc conditions. Activated surface transport will almost always exist in parallel with free molecular flow transport, and the process of alkali atom adsorption/desorption from the electrode surface will invariably be part of the transport process, and possibly a dominant part in some cases. Little can be learned about the detailed mass transport process from the ac impedance or current voltage curves of an electrode at one set of operating parameters, because the transport process includes a number of important physical parameters that are not all uniquely determined by one experiment. The temperature dependence of diffusion coefficient of the alkali metal through the electrode in several cases provides an activation energy and pre-exponential, but at least two activated processes may be operative, and the activation parameters should be expected to depend on the alkali metal activity gradient that the electrode experiences. In the case of Pt/W/Mn electrodes operated for 2500 hours, limiting currents varied with electrode thickness, and the activation parameters could be assigned primarily to the surface/grain boundary diffusion process. 17 refs.

Williams, R.M.; Jeffries-Nakamura, B.; Ryan, M.A.; Underwood, M.L.; O`Connor, D.; Kikkert, S.

1992-07-01T23:59:59.000Z

9

Activated transport in AMTEC electrodes  

SciTech Connect

Transport of alkali metal atoms through porous cathodes of alkali metal thermal-to-electric converter (AMTEC) cells is responsible for significant, reducible losses in the electrical performance of these cells. Experimental evidence for activated transport of metal atoms at grain surfaces and boundaries within some AMTEC electrodes has been derived from temperature dependent studies as well as from analysis of the detailed frequency dependence of ac impedance results for other electrodes, including thin, mature molybdenum electrodes which exhibit transport dominated by free molecular flow of sodium gas at low frequencies or dc conditions. Activated surface transport will almost always exist in parallel with free molecular flow transport, and the process of alkali atom adsorption/desorption from the electrode surface will invariably be part of the transport process, and possibly a dominant part in some cases. Little can be learned about the detailed mass transport process from the ac impedance or current voltage curves of an electrode at one set of operating parameters, because the transport process includes a number of important physical parameters that are not all uniquely determined by one experiment. The temperature dependence of diffusion coefficient of the alkali metal through the electrode in several cases provides an activation energy and pre-exponential, but at least two activated processes may be operative, and the activation parameters should be expected to depend on the alkali metal activity gradient that the electrode experiences. In the case of Pt/W/Mn electrodes operated for 2500 hours, limiting currents varied with electrode thickness, and the activation parameters could be assigned primarily to the surface/grain boundary diffusion process. 17 refs.

Williams, R.M.; Jeffries-Nakamura, B.; Ryan, M.A.; Underwood, M.L.; O'Connor, D.; Kikkert, S.

1992-01-01T23:59:59.000Z

10

Diffusion in active magnetic colloids  

E-Print Network (OSTI)

Properties of active colloids of circle swimmers are reviewed. As an particular example of active magnetic colloids the magnetotactic bacteria under the action of a rotating magnetic field is considered. The relation for a diffusion coefficient due to the random switching of the direction of rotation of their rotary motors is derived on the basis of the master equation. The obtained relation is confirmed by the direct numerical simulation of random trajectory of a magnetotactic bacterium under the action of the Poisson type internal noise due to the random switching of rotary motors. The results obtained are in qualitative and quantitative agreement with the available experimental results and allows one to determine the characteristic time between the switching events of a rotary motor of the bacterium.

Reinis Taukulis; Andrejs Cebers

2013-10-04T23:59:59.000Z

11

Vehicle Technologies Office: Key Activities in Vehicles  

NLE Websites -- All DOE Office Websites (Extended Search)

Key Activities in Key Activities in Vehicles to someone by E-mail Share Vehicle Technologies Office: Key Activities in Vehicles on Facebook Tweet about Vehicle Technologies Office: Key Activities in Vehicles on Twitter Bookmark Vehicle Technologies Office: Key Activities in Vehicles on Google Bookmark Vehicle Technologies Office: Key Activities in Vehicles on Delicious Rank Vehicle Technologies Office: Key Activities in Vehicles on Digg Find More places to share Vehicle Technologies Office: Key Activities in Vehicles on AddThis.com... Key Activities Mission, Vision, & Goals Plans, Implementation, & Results Organization & Contacts National Laboratories Budget Partnerships Key Activities in Vehicles We conduct work in four key areas to develop and deploy vehicle technologies that reduce the use of petroleum while maintaining or

12

Active molecular plasma in a magnetic field  

SciTech Connect

The propagation of electromagnetic oscillations in an active molecules plasma in a constant external magnetic field is investigated. (AIP)

Kovtun, V.P.

1981-05-01T23:59:59.000Z

13

Active structures in advanced engineering - an overview  

Science Conference Proceedings (OSTI)

In the paper, the usefulness of active systems is considered, whereby both their advantages and disadvantages are emphasised. Some characteristic examples of breakdowns and disasters of objects and construction are presented, such as the catastrophe ... Keywords: active suspension, active systems, aerofoil flutter, cooling tower, disaster, safety engineering, shaft vehicle, variable geometry

Miomir K. Vukobratovic

2000-07-01T23:59:59.000Z

14

Massachusetts Takes On Climate Change  

E-Print Network (OSTI)

dies for green startups, and investment in green collar jobsThese in- clude investment in green technologies like wind

Kimmell, Ken; Laurie, Burt

2009-01-01T23:59:59.000Z

15

activities  

NLE Websites -- All DOE Office Websites (Extended Search)

Detecting Things We Cannot See: Learning the Concepts of Control and Detecting Things We Cannot See: Learning the Concepts of Control and Variable in an Experiment Submitted by Anita Brook-Dupree, 1996 TRAC teacher at Fermilab, Teacher, Alternative Middle Years School, Philadelphia, PA. Particle physicists at Fermilab in Batavia, Illinois are faced with the problem of detecting the presence of sub-atomic particles they cannot see. During my summer as a TRAC teacher at Fermilab, I tried to think of ways to teach middle school students about things we cannot see. I want to thank my nine-year-old daughter Gia for the idea for the following activity. I was lamenting that I could not come up with ideas of how to relate the work of Fermilab scientists to anything that my students would understand. Then I was reminded by my daughter, that when I brought her to school on the

16

Enzyme activity in dialkylphosphate ionic liquids  

NLE Websites -- All DOE Office Websites (Extended Search)

Enzyme activity in dialkylphosphate ionic liquids Enzyme activity in dialkylphosphate ionic liquids M. F. Thomas, L. Li, J. Handley-Pendleton, D. van der Lelie, J. J. Dunn and J. F. Wishart Bioresource Technology 102, in press. [Find paper at Science Direct] Abstract: The activity of four metagenomic enzymes and an enzyme cloned from the straw mushroom, Volvariella volvacea were studied in the following ionic liquids, 1,3-dimethylimidazolium dimethyl phosphate, [mmim][dmp], 1-ethyl-3-methylimidazolium dimethyl phosphate, [emim][dmp], 1-ethyl-3-methylimidazolium diethyl phosphate, [emim][dep] and 1-ethyl-3-methylimidazolium acetate, [emim][OAc]. Activity was determined by analyzing the hydrolysis of para-nitrobenzene carbohydrate derivatives. In general, the enzymes were most active in the dimethyl phosphate ionic

17

Courses of Instruction InstruCtIon  

E-Print Network (OSTI)

are not in- cluded. From the StefanĂ?Boltzmann law of blackbody radiation, the radiative energy loss can

Bolding, M. Chad

18

tel-00781783,version1-28Jan2013 tel-00781783,version1-28Jan2013  

E-Print Network (OSTI)

etching (ASE). Other possibilities in- clude the use of co-fired ceramic tapes [24] or powder blasting [25

19

Energy Research Activities in MML  

Science Conference Proceedings (OSTI)

... use, molecular structures that form the key components in solar-to-fuel technologies, and information underpinning advanced energy systems are ...

2012-06-12T23:59:59.000Z

20

Geopressured-geothermal well activities in Louisiana  

DOE Green Energy (OSTI)

Since September 1978, microseismic networks have operated continuously around US Department of Energy (DOE) geopressured-geothermal well sites to monitor any microearthquake activity in the well vicinity. Microseismic monitoring is necessary before flow testing at a well site to establish the level of local background seismicity. Once flow testing has begun, well development may affect ground elevations and/or may activate growth faults, which are characteristic of the coastal region of southern Louisiana and southeastern Texas where these geopressured-geothermal wells are located. The microseismic networks are designed to detest small-scale local earthquakes indicative of such fault activation. Even after flow testing has ceased, monitoring continues to assess any microearthquake activity delayed by the time dependence of stress migration within the earth. Current monitoring shows no microseismicity in the geopressured-geothermal prospect areas before, during, or after flow testing.

John, C.J.

1992-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "activities in cluding" 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

EIA - AEO2010 - Trends in Economic Activity  

Gasoline and Diesel Fuel Update (EIA)

Trends in Economic Activity Trends in Economic Activity Annual Energy Outlook 2010 with Projections to 2035 Trends in Economic Activity Real gross domestic product returns to its pre-recession level by 2011 AEO2010 presents three views of economic growth (Figure 31). The rate of growth in real GDP depends on assumptions about labor force growth and productivity. In the Reference case, growth in real GDP averages 2.4 percent per year. Figure 31. Average annual growth rates of real GDP, labot force, and productivity in three cases, 2008-2035 Click to enlarge » Figure source and data excel logo Figure 32. Average annual inflation, interest, and unemployment rates in three cases, 2008-2035 Click to enlarge » Figure source and data excel logo Figure 33. Sectoral composition of industrial output growth rates in three cases, 2008-2035

22

Raman activity in synchronously dividing bacteria  

SciTech Connect

Using a spectrometer equipped with an optical-multichannel analyzer as the detector (OMA), we have observed the Stokes laser-Raman spectra of metabolically active Escherichia coli and Bacillus megaterium from 100 - 2100 cm/sup -1/. After lengthy investigation, no Raman lines attributable to the metabolic process nor the cells themselves were found. Previous Raman spectra of active bacteria cannot be used to support nonlinear theories in biology. 34 refs., 9 figs.

Layne, S.P.

1985-01-01T23:59:59.000Z

23

Transmission of Information in Active Networks  

E-Print Network (OSTI)

Shannon's Capacity Theorem is the main concept behind the Theory of Communication. It says that if the amount of information contained in a signal is smaller than the channel capacity of a physical media of communication, it can be transmitted with arbitrarily small probability of error. This theorem is usually applicable to ideal channels of communication in which the information to be transmitted does not alter the passive characteristics of the channel that basically tries to reproduce the source of information. For an {\\it active channel}, a network formed by elements that are dynamical systems (such as neurons, chaotic or periodic oscillators), it is unclear if such theorem is applicable, once an active channel can adapt to the input of a signal, altering its capacity. To shed light into this matter, we show, among other results, how to calculate the information capacity of an active channel of communication. Then, we show that the {\\it channel capacity} depends on whether the active channel is self-excitable or not and that, contrary to a current belief, desynchronization can provide an environment in which large amounts of information can be transmitted in a channel that is self-excitable. An interesting case of a self-excitable active channel is a network of electrically connected Hindmarsh-Rose chaotic neurons.

M. S. Baptista; J. Kurths

2007-12-21T23:59:59.000Z

24

Bursts of Active Transport in Living Cells  

E-Print Network (OSTI)

We scrutinize the temporally-resolved speed of active cargo transport in living cells, and show intermittent bursting motions. These nonlinear fluctuations follow a scaling law over several decades of time and space, the statistical regularities displaying a time-averaged shape that we interpret to reflect stress buildup followed by rapid release. The power law of scaling is the same as seen in driven jammed colloids, granular, and magnetic systems. The implied regulation of active transport with environmental obstruction extends the classical notion of molecular crowding.

Bo Wang; James Kuo; Steve Granick

2013-07-07T23:59:59.000Z

25

Spontaneous motion in hierarchically assembled active matter  

E-Print Network (OSTI)

With exquisite precision and reproducibility, cells orchestrate the cooperative action of thousands of nanometer-sized molecular motors to carry out mechanical tasks at much larger length scales, such as cell motility, division and replication. Besides their biological importance, such inherently non-equilibrium processes are an inspiration for developing biomimetic active materials from microscopic components that consume energy to generate continuous motion. Being actively driven, these materials are not constrained by the laws of equilibrium statistical mechanics and can thus exhibit highly sought-after properties such as autonomous motility, internally generated flows and self-organized beating. Starting from extensile microtubule bundles, we hierarchically assemble active analogs of conventional polymer gels, liquid crystals and emulsions. At high enough concentration, microtubules form a percolating active network characterized by internally driven chaotic flows, hydrodynamic instabilities, enhanced transport and fluid mixing. When confined to emulsion droplets, 3D networks spontaneously adsorb onto the droplet surfaces to produce highly active 2D nematic liquid crystals whose streaming flows are controlled by internally generated fractures and self-healing, as well as unbinding and annihilation of oppositely charged disclination defects. The resulting active emulsions exhibit unexpected properties, such as autonomous motility, which are not observed in their passive analogues. Taken together, these observations exemplify how assemblages of animate microscopic objects exhibit collective biomimetic properties that are starkly different from those found in materials assembled from inanimate building blocks, challenging us to develop a theoretical framework that would allow for a systematic engineering of their far-from-equilibrium material properties.

Tim Sanchez; Daniel T. N. Chen; Stephen J. DeCamp; Michael Heymann; Zvonimir Dogic

2013-01-07T23:59:59.000Z

26

ACTIVE SET IDENTIFICATION IN NONLINEAR PROGRAMMING 1 ...  

E-Print Network (OSTI)

the iterates enter a neighborhood of x?; see for example [8, Theorem 12.3.8]. Active constraint ..... When the trust-region radius ? is bounded in terms of x?x? ...... For these problems, it is not necessary for the LPEC to search beyond the.

27

The Sun in Time: Activity and Environment  

E-Print Network (OSTI)

(abridged) The Sun's magnetic activity has steadily declined during its main-sequence life. While the solar photospheric luminosity was about 30% lower 4.6 Gyr ago when the Sun arrived on the main sequence compared to present-day levels, its faster rotation generated enhanced magnetic activity; magnetic heating processes in the chromosphere, the transition region, and the corona induced ultraviolet, extreme-ultraviolet, and X-ray emission about 10, 100, and 1000 times, respectively, the present-day levels, as inferred from young solar-analog stars. Also, the production rate of accelerated, high-energy particles was orders of magnitude higher than in present-day solar flares, and a much stronger wind escaped from the Sun, permeating the entire solar system. The consequences of the enhanced radiation and particle fluxes from the young Sun were potentially severe for the evolution of solar-system planets and moons. Interactions of high-energy radiation and the solar wind with upper planetary atmospheres may have led to the escape of important amounts of atmospheric constituents. The present dry atmosphere of Venus and the thin atmosphere of Mars may be a product of early irradiation and heating by solar high-energy radiation. High levels of magnetic activity are also inferred for the pre-main sequence Sun. At those stages, interactions of high-energy radiation and particles with the circumsolar disk in which planets eventually formed were important. Traces left in meteorites by energetic particles and anomalous isotopic abundance ratios in meteoritic inclusions may provide evidence for a highly active pre-main sequence Sun. The present article reviews these various issues related to the magnetic activity of the young Sun and the consequent interactions with its environment.

M. Guedel

2007-12-11T23:59:59.000Z

28

Antidotal effectiveness of activated charcoal in rats  

SciTech Connect

This study was designed to investigate the relative adsorption of radiolabeled /sup 14/C-sodium pentobarbital by three types of activated charcoal. Factors affection adsorption of the drug by SuperChar, United States Pharmacopeia (USP), and Darco G-60 activated charcoals with surface areas of 2800-3500 m2/g, 1000 m/sup 2//g, and 650 m/sup 2//g, respectively, were studied both in vitro and in vivo. For in vitro experiments, the drug was dissolved in water of 70% sorbitol (w/v), and the maximum binding capacity and dissociation constants for each of the charcoals were calculated. Rank order of maximum binding capacity was directly proportional to charcoal surface area in both water and sorbitol, while the dissociation constants for the charcoals in water were not different. For in vivo experiments, absorption of orally administered sodium pentobarbital (40 mg/kg) was studied in rats with and without activated charcoal administration. The results of this research suggest that: (1) SuperChar given in water possesses the greatest antidotal efficacy, (2) sorbitol induced catharsis does not reduce oral absorption of sodium pentobarbital, and (3) sorbitol enhances the antidotal efficacy of USP charcoal.

Curd-Sneed, C.D.

1986-01-01T23:59:59.000Z

29

A Summary of Control System Security Standards Activities in...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

A Summary of Control System Security Standards Activities in the Energy Sector (October 2005) A Summary of Control System Security Standards Activities in the Energy Sector...

30

Activities  

NLE Websites -- All DOE Office Websites (Extended Search)

10%, but brands vary. A colorless liquid should be reported in cups E, F, or G. (Student error is to be expected) 2. Measure 1 ml of water in an eye dropper and use a permanent...

31

Vehicle Technologies Office: Key Activities in Vehicles  

NLE Websites -- All DOE Office Websites (Extended Search)

Activities in Vehicles Activities in Vehicles We conduct work in four key areas to develop and deploy vehicle technologies that reduce the use of petroleum while maintaining or improving performance, power, and comfort. Research and development (R&D); testing and analysis; government and community stakeholder support; and education help people access and use efficient, clean vehicles that meet their transportation needs. Researcher loads a sample mount of battery cathode materials for X-ray diffraction, an analysis tool for obtaining information on the crystallographic structure and composition of materials. Research and Development of New Technologies Develop durable and affordable advanced batteries as well as other forms of energy storage. Improve the efficiency of combustion engines.

32

Activities and Accomplishments in Model Year 2007  

SciTech Connect

Document summarizes the compliance activity of EPAct-covered state and alternative fuel provider fleets.

Not Available

2008-09-01T23:59:59.000Z

33

Activities Designed to Recover the Taxpayers' Investment in the...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Program, IG-0391 Activities Designed to Recover the Taxpayers' Investment in the Clean Coal Technology Program, IG-0391 Report on Audit of Activities Designed to Recover the...

34

Building Technologies Office: Key Activities in Energy Efficiency  

NLE Websites -- All DOE Office Websites (Extended Search)

Energy Efficiency to someone by E-mail Share Building Technologies Office: Key Activities in Energy Efficiency on Facebook Tweet about Building Technologies Office: Key Activities...

35

activities  

NLE Websites -- All DOE Office Websites (Extended Search)

Teachers Needed to Participate in Fermilabyrinth - a Program for Midlevel Students You and your students can experience "cutting-edge" Web technology as part of a Fermilab Education Office pilot program. Fermilabyrinth is a collection of online games based on the hands-on Quarks to Quasars exhibits at the Lederman Science Center. The games can stand alone as a virtual field trip or be part of an inquiry-based classroom project. Although we are still developing some features of the site, there is currently quite a bit to see at http://www-ed.fnal.gov/projects/labyrinth/. For more information about the site, please contact Spencer Pasero at spasero@fnal.gov or (630) 840-3076. SIMply Prairie - a Pilot Program for Midlevel Students: Teachers Needed for Pilot Program

36

AGN Activity in Giant LSB Galaxies  

E-Print Network (OSTI)

A search of large, HI-rich disk galaxies finds a significantly higher fraction of low luminosity AGN signatures compared to other late-type galaxies. Approximately half of the galaxies selected in this sample have AGN-like behavior in their cores, the rest have HII nuclei resulting from simple star formation. Since AGN behavior is not evident in all the sample galaxies, which where selected by high gas mass, we speculate that it is the fuel flow rate that is the common feature between late-type LSB disks and other active nuclear galaxies.

Schombert, J M

1998-01-01T23:59:59.000Z

37

Metric in Sports: Olympic Educational Activities  

Science Conference Proceedings (OSTI)

... Join the fun! This site sponsors a collection of websites providing links to cross curriculum activities with an Olympic theme. ...

2010-10-05T23:59:59.000Z

38

In-vessel activation monitors in JET: Progress in modeling  

SciTech Connect

Activation studies were performed in JET with new in-vessel activation monitors. Though primarily dedicated to R and D in the challenging issue of lost {alpha} diagnostics for ITER, which is being addressed at JET with several techniques, these monitors provide for both neutron and charged particle fluences. A set of samples with different orientation with respect to the magnetic field is transported inside the torus by means of a manipulator arm (in contrast with the conventional JET activation system with pneumatic transport system). In this case, radionuclides with longer half-life were selected and ultralow background gamma-ray measurements were needed. The irradiation was closer to the plasma and this potentially reduces the neutron scattering problem. This approach could also be of interest for ITER, where the calibration methods have yet to be developed. The MCNP neutron transport model for JET was modified to include the activation probe and so provide calculations to help assess the new data. The neutron induced activity on the samples are well reproduced by the calculations.

Bonheure, Georges [Laboratory for Plasma Physics, Association 'Euratom-Belgian State', Avenue de la Renaissance 30, B-1000 Brussels (Belgium); Lengar, I. [Slovenian Fusion Association, Jozef Stefan Institute, Jamova 39, SI-1000 Ljubljana (Slovenia); Syme, B.; Popovichev, S. [Euratom/UKAEA Association, Culham Science Centre, Abingdon, OX14 3DB Oxon (United Kingdom); Wieslander, Elisabeth; Hult, Mikael; Gasparro, Joeel; Marissens, Gerd [EC-JRC-IRMM, Institute for Reference Materials and Measurements, Retieseweg 111, B-2440 Geel (Belgium); Arnold, Dirk [Physikalisch-Technische Bundesanstalt, 6.1 Radioactivity, Bundesallee 100, D-38116 Braunschweig (Germany); Laubenstein, Matthias [Laboratori Nazionali del Gran Sasso, S.S, 17/bis, km 18-910, I-67010 Assergi (Italy)

2008-10-15T23:59:59.000Z

39

Physics-based activity modelling in phase space  

Science Conference Proceedings (OSTI)

In this paper, we employ ideas grounded in physics to examine activities in video. We build the Multi-Resolution Phase Space (MRPS) descriptor, which is a set of feature descriptors that is able to represent complex activities in multiple domains directly ... Keywords: activity modeling, phase space, physics-based

Ricky J. Sethi; Amit K. Roy-Chowdhury

2010-12-01T23:59:59.000Z

40

Midwinter Suppression of Baroclinic Wave Activity in the Pacific  

Science Conference Proceedings (OSTI)

Seasonal variations in baroclinic wave activity and jet stream structure in the Northern Hemisphere are investigated based upon over 20 years of daily data. Baroclinic wave activity at each grid point is represented for each day by an envelope ...

Hisashi Nakamura

1992-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "activities in cluding" 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

Context-Aware Modeling and Recognition of Activities in Video  

Science Conference Proceedings (OSTI)

In this paper, rather than modeling activities in videos individually, we propose a hierarchical framework that jointly models and recognizes related activities using motion and various context features. This is motivated from the observations that the ...

Yingying Zhu, Nandita M. Nayak, Amit K. Roy-Chowdhury

2013-06-01T23:59:59.000Z

42

Integrated tracking and recognition of human activities in shape space  

Science Conference Proceedings (OSTI)

Activity recognition consists of two fundamental tasks: tracking the features/objects of interest, and recognizing the activities. In this paper, we show that these two tasks can be integrated within the framework of a dynamical feedback system. In our ...

Bi Song; Amit K. Roy-Chowdhury; N. Vaswani

2006-12-01T23:59:59.000Z

43

Characterization of active sites in zeolite catalysts  

DOE Green Energy (OSTI)

This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). Atomic-level details of the interaction of adsorbed molecules with active sites in catalysts are urgently needed to facilitate development of more effective and/or environmentally benign catalysts. To this end the authors have carried out neutron scattering studies combined with theoretical calculations of the dynamics of small molecules inside the cavities of zeolite catalysts. The authors have developed the use of H{sub 2} as a probe of adsorption sites by observing the hindered rotations of the adsorbed H{sub 2} molecule, and they were able to show that an area near the four-rings is the most likely adsorption site for H{sub 2} in zeolite A while adsorption of H{sub 2} near cations located on six-ring sites decreases in strength as Ni {approximately} Co > Ca > Zn {approximately} Na. Vibrational and rotational motions of ethylene and cyclopropane adsorption complexes were used as a measure for zeolite-adsorbate interactions. Preliminary studies of the binding of water, ammonia, and methylamines were carried out in a number of related guest-host materials.

Eckert, J. [Los Alamos National Lab., NM (United States); Bug, A. [Swarthmore Coll., PA (United States); Nicol, J.M. [MOLTECH (United States)] [and others

1997-11-01T23:59:59.000Z

44

Activities and Accomplishments in MY 2006/FY 2007  

SciTech Connect

Document details the compliance activities of EPAct-covered state and alternative fuel provider fleets in model year 2006.

Not Available

2007-08-01T23:59:59.000Z

45

Energy Storage Activities in the United States Electricity Grid...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Activities in the United States Electricity Grid Electricity Advisory Committee Energy Storage Technologies Subcommittee Members Ralph Masiello, Subcommittee Chair Senior...

46

MAGNETIC ENERGY SPECTRA IN SOLAR ACTIVE REGIONS  

SciTech Connect

Line-of-sight magnetograms for 217 active regions (ARs) with different flare rates observed at the solar disk center from 1997 January until 2006 December are utilized to study the turbulence regime and its relationship to flare productivity. Data from the SOHO/MDI instrument recorded in the high-resolution mode and data from the BBSO magnetograph were used. The turbulence regime was probed via magnetic energy spectra and magnetic dissipation spectra. We found steeper energy spectra for ARs with higher flare productivity. We also report that both the power index, {alpha}, of the energy spectrum, E(k) {approx} k{sup -}{alpha}, and the total spectral energy, W = {integral}E(k)dk, are comparably correlated with the flare index, A, of an AR. The correlations are found to be stronger than those found between the flare index and the total unsigned flux. The flare index for an AR can be estimated based on measurements of {alpha} and W as A = 10{sup b}({alpha}W){sup c}, with b = -7.92 {+-} 0.58 and c = 1.85 {+-} 0.13. We found that the regime of the fully developed turbulence occurs in decaying ARs and in emerging ARs (at the very early stage of emergence). Well-developed ARs display underdeveloped turbulence with strong magnetic dissipation at all scales.

Abramenko, Valentyna; Yurchyshyn, Vasyl [Big Bear Solar Observatory, 40386 N. Shore Lane, Big Bear City, CA 92314 (United States)

2010-09-01T23:59:59.000Z

47

Active Spectral Nephelometry in Studies of the Condensational Activity of Submicron Aerosol  

NLE Websites -- All DOE Office Websites (Extended Search)

Active Spectral Nephelometry in Studies of the Active Spectral Nephelometry in Studies of the Condensational Activity of Submicron Aerosol M. V. Panchenko, S. A. Terpugova, and V. S. Kozlov Institute of Atmospheric Optics Russian Academy of Sciences Tomsk, Russia M. A. Sviridenkov A. M. Obukhov Institute of Atmospheric Physics Russian Academy of Sciences Moscow, Russia A. S. Kozlov Institute of Chemical Kinetics and Combustion Russian Academy of Sciences Novosibirsk, Russia Introduction Water vapor condensation and evaporation are among the main processes of the atmospheric aerosol transformation essentially affecting its optical and radiative characteristics. Most of the known methods for investigating the aerosol condensation activity are based on measurements of only the changes in the

48

Status of UFD Campaign International Activities in Disposal Research |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Status of UFD Campaign International Activities in Disposal Status of UFD Campaign International Activities in Disposal Research Status of UFD Campaign International Activities in Disposal Research Several international organizations have made significant progress in the characterization and performance evaluation of other disposal design options and host rock characteristics (clay/shale, granite), most of which were very different from those studied in the United States. The DOE recognizes that close international collaboration is a beneficial and cost effective strategy for advancing disposal science. This report describes the active collaboration opportunities available to U.S. researchers, and presents specific cooperative research activities that have been recently initiated within DOE's disposal research program.

49

Summary of ICTP activities in support of science in  

E-Print Network (OSTI)

of External Activities 10 Scientific Meetings #12; Delegation from Tbilisi State University Visited ICTP Weather and Climate Events in the Southern Caucasus - Black Sea Region, Tbilisi, 2013 #12; The amounts

50

Information architecture using asymmetric in spreading activation  

Science Conference Proceedings (OSTI)

As products are getting more diverse and new products are entering the market faster, customers have trouble learning how to use them. User-oriented menu structures may solve this problem. Therefore, to design user-oriented information architectures, ... Keywords: asymmetric transition, information architecture, mental model, menu structure, spreading activation theory, user centered design

Se Eung Oh; Jong Soon Park; Rohae Myung

2008-06-01T23:59:59.000Z

51

Aryl hydrocarbon mono-oxygenase activity in human lymphocytes  

SciTech Connect

Aryl hydrocarbon mono-oxygenase (AHM), an enzyme of key importance in metabolism of xenobiotic chemicals such as polynuclear aromatic hydrocarbons (PNA), is present in human lymphocytes. Studies investing the relation of activity of AHM in human lymphocytes to parameters such as disease state, PNA exposure, in vitro mitogen stimulation, etc. have been summarized in this report. Some studies have demonstrated increased AHM activity in lymphocytes from cigarette smokers (compared to nonsmokers), and in lung cancer patients when compared to appropriate control groups. These observations are confused by extreme variability in human lymphocyte AHM activities, such variability arising from factors such as genetic variation in AHM activity, variation in in vitro culture conditions which affect AHM activity, and the problematical relationship of common AHM assays to actual PNA metabolism taking place in lymphocytes. If some of the foregoing problems can be adequately addressed, lymphocyte AHM activity could hold the promise of being a useful biomarker system for human PNA exposure.

Griffin, G.D.; Schuresko, D.D.

1981-06-01T23:59:59.000Z

52

Specific Examples of Global Activities Environmental assessment in Azerbaijan  

E-Print Network (OSTI)

Specific Examples of Global Activities · Environmental assessment in Azerbaijan · Study abroad · Environmental assessment in Azerbaijan · Study abroad entrepreneurship internship with the Tsinghua University

53

Trace Impurities and Activation Products in Base Metals  

Science Conference Proceedings (OSTI)

This report documents the results of research related to the concentrations of trace impurities and activation products in stainless steel alloys used for reactor vessels and internals. While present in extremely low concentrations, these trace elements and radionuclides can impact radioactive waste disposal of the components upon decommissioning.BackgroundThe primary basis of activity in a decommissioning source term is activated metals from the reactor and ...

2012-10-30T23:59:59.000Z

54

Computer application for design activity in power plants  

Science Conference Proceedings (OSTI)

Software for Design Activity in Power Plants' helps the Power Plant engineers and managers to manage the development and design activities of equipments in the field of power plants. This paper is basically concerned with the computerization of the design activity of Condenser, vital equipment in Heat Exchanger Unit of Thermal Power Plant required for condensing the steam and for further reclaimable purposes to achieve economy. This software will also provide facilities to maintain user profile and the respective work details.

Giri, Parimal Kumar; Srivastava, Sonam [Apeejay College of Engineering, Sohna, Gurgaon (India)

2010-10-26T23:59:59.000Z

55

Advanced Vehicle Testing Activity: Plug-in Hybrid Electric Vehicle...  

NLE Websites -- All DOE Office Websites (Extended Search)

Procedures to someone by E-mail Share Advanced Vehicle Testing Activity: Plug-in Hybrid Electric Vehicle Specifications and Test Procedures on Facebook Tweet about Advanced...

56

Use of high performance computing in neutronics analysis activities  

NLE Websites -- All DOE Office Websites (Extended Search)

high performance computing in neutronics analysis activities M.A. Smith Argonne National Laboratory 9700 South Cass Avenue, Argonne Illinois 60439, USA Abstract Reactor design is...

57

Application Of Active Audiomagnetotellurics (Aamt) In The Geothermal...  

Open Energy Info (EERE)

Audiomagnetotellurics (Aamt) In The Geothermal Field Of Travale, Tuscany Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Application Of Active...

58

Activation of Air and Utilities in the National Ignition Facility  

Science Conference Proceedings (OSTI)

Detailed 3-D modeling of the NIF facility is developed to accurately simulate the radiation environment within the NIF. Neutrons streaming outside the NIF Target Chamber will activate the air present inside the Target Bay and the Ar gas inside the laser tubes. Smaller levels of activity are also generated in the Switchyard air and in the Ar portion of the SY laser beam path. The impact of neutron activation of utilities located inside the Target Bay is analyzed for variety of shot types. The impact of activating TB utilities on dose received by maintenance personnel post-shot is analyzed. The current NIF facility model includes all important features of the Target Chamber, shielding system, and building configuration. Flow of activated air from the Target Bay is controlled by the HVAC system. The amount of activated Target Bay air released through the stack is very small and does not pose significant hazard to personnel or the environment. Activation of Switchyard air is negligible. Activation of Target Bay utilities result in a manageable dose rate environment post high yield (20 MJ) shots. The levels of activation generated in air and utilities during D-D and THD shots are small and do not impact work planning post shots.

Khater, H; Pohl, B; Brererton, S

2010-04-08T23:59:59.000Z

59

Overview Of Electromagnetic Methods Applied In Active Volcanic Areas Of  

Open Energy Info (EERE)

Of Electromagnetic Methods Applied In Active Volcanic Areas Of Of Electromagnetic Methods Applied In Active Volcanic Areas Of Western United States Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Overview Of Electromagnetic Methods Applied In Active Volcanic Areas Of Western United States Details Activities (7) Areas (2) Regions (0) Abstract: A better understanding of active volcanic areas in the United States through electromagnetic geophysical studies received foundation from the many surveys done for geothermal exploration in the 1970's. Investigations by governmental, industrial, and academic agencies include (but are not limited to) mapping of the Cascades. Long Valley/Mono area, the Jemez volcanic field, Yellowstone Park, and an area in Colorado. For one example - Mt. Konocti in the Mayacamas Mountains, California - gravity,

60

Key Activities in Energy Efficiency | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

About » Key Activities in Energy Efficiency About » Key Activities in Energy Efficiency Key Activities in Energy Efficiency The Building Technologies Office conducts work in three key areas in order to continually develop innovative, cost-effective energy saving solutions: research and development (R&D), market stimulation, and building codes and equipment standards. Working with our partners on these activities results in better products, better new homes, better ways to improve older homes, and better buildings in which to work, shop, and lead our everyday lives. Research and Development Spearhead the development of new, energy efficient technologies. Lead R&D activities that reduce home energy use through Building America. Collaborate with industry to improve the energy efficiency of new

Note: This page contains sample records for the topic "activities in cluding" 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

This article is from the June 2006 issue of  

E-Print Network (OSTI)

on nuclear and mitochondrial DNA sequences; it in- cluded strains of F. subglutinans from Egypt, Florida (Israel, Malaysia, and Pakistan), Africa (Egypt, South Africa, Sudan, Swaziland, and Uganda

62

2011 Henry Ford Health System Award Application Summary  

Science Conference Proceedings (OSTI)

... Standardized, or “core,” quality performance measures reported by The ... nuum of Care Health care coal t ons (eg ... in- clude a full status report by pillar ...

2012-04-12T23:59:59.000Z

63

Executive Order 12123  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

ation, air compressor systems, industrial processes, and fuel switching, in- cluding cogeneration and other efficiency and renewable energy technologies. (g) Highly Efficient...

64

Evaluation of a hand-held, computer-based intervention to promote early self-care  

E-Print Network (OSTI)

are prescribed a complex medical regimen that in- cludes self-monitoring (e.g., home-based spirome- try, symptoms

Myers, Brad A.

65

Usage Of New Activation Function In Neuro-Symbolic Integration  

SciTech Connect

New activation function is examined for its ability to accelerate the performance of doing logic programming in Hopfield network. This method has a higher capacity and upgrades the neuro symbolic integration. Computer simulations are carried out to validate the effectiveness of the new activation function. Empirical results obtained support our theory.

Sathasivam, Saratha [School of Mathematical Sciences, Universiti Sains Malaysia, 11800 USM, Penang (Malaysia)

2010-12-23T23:59:59.000Z

66

Active-region designs in quantum cascade lasers  

Science Conference Proceedings (OSTI)

This paper analyses the development of active-region designs in quantum cascade lasers. Active-region designs have been demonstrated to date that employ various radiative transitions (vertical, diagonal, interminiband and interband). The lower laser level is depopulated through nonradiative transitions, such as one- or two-phonon (and even three-phonon) relaxation or bound state {yields} continuum transitions. Advances in active-region designs and energy diagram optimisation in the past few years have led to significant improvements in important characteristics of quantum cascade lasers, such as their output power, emission bandwidth, characteristic temperature and efficiency. (invited paper)

Zasavitskii, I I [P N Lebedev Physical Institute, Russian Academy of Sciences, Moscow (Russian Federation)

2012-10-31T23:59:59.000Z

67

Multidecadal Variability in North Atlantic Tropical Cyclone Activity  

Science Conference Proceedings (OSTI)

Recent increases in Atlantic basin tropical cyclone activity since 1995 and the associated destructive U.S. landfall events in 2004 and 2005 have generated considerable interest into why there has been such a sharp upturn. Natural variability, ...

Philip J. Klotzbach; William M. Gray

2008-08-01T23:59:59.000Z

68

Advanced Vehicle Testing Activity: Plug-in Hybrid Electric Vehicles  

NLE Websites -- All DOE Office Websites (Extended Search)

Plug-in Hybrid Electric Vehicles to someone by E-mail Share Advanced Vehicle Testing Activity: Plug-in Hybrid Electric Vehicles on Facebook Tweet about Advanced Vehicle Testing...

69

United Nations geothermal activities in developing countries  

SciTech Connect

The United Nations implements technical cooperation projects in developing countries through its Department of Technical Cooperation for Development (DTCD). The DTCD is mandated to explore for and develop natural resources (water, minerals, and relevant infrastructure) and energy - both conventional and new and renewable energy sources. To date, the United Nations has been involved in over 30 geothermal exploration projects (completed or underway) in 20 developing countries: 8 in Africa (Djibouti, Ethiopia, Kenya, Madagascar); 8 in Asia (China, India, Jordan, Philippines, Thailand); 9 in Latin America (Bolivia, Chile, El Salvador, Honduras, Mexico, Nicaragua, Panama) and 6 in Europe (Greece, Romania, Turkey, Yugoslavia). Today, the DTCD has seven UNDP geothermal projects in 6 developing countries. Four of these (Bolivia, China, Honduras, and Kenya) are major exploration projects whose formulation and execution has been possible thanks to the generous contributions under cost-sharing arrangements from the government of Italy. These four projects are summarized.

Beredjick, N.

1987-07-01T23:59:59.000Z

70

Renewable Energy Research Activities in Mexico  

Science Conference Proceedings (OSTI)

... Out line ? Scientometrics ? Analysis of renewable energy topics ... "OCEANIC ENERGY") ... It seems we reach the saturation production in RE themes. ...

2013-10-31T23:59:59.000Z

71

Seismic Monitoring Of Blasting Activity In Russia  

E-Print Network (OSTI)

Two significant mining regions in Russia lie near Novosibirsk and at the Kursk Magnetic Anomaly. A small percentage of events from these areas trigger the International Monitoring System (IMS). We have studied IMS recordings of events from these areas with the main goal of better understanding how these blasts are detonated and how these events will be most effectively monitored using IMS data. We have collected ground-truth information on the mining blasts and crustal structure in the area to facilitate modeling of the events. We have focused on sifting out from further consideration routine mining events and identifying detonation anomalies. We define master traces to represent tight clusters of mining events and to be used to identify anomalous events. We have examined recordings of events from eight significant event clusters in the 500-km-long Kuzbass/Abakan mining trend near Novosibirsk. The recordings were made by the IMS station ZAL. We see significant variations in the P onset and early coda between different events in clusters. We have found strong evidence of a detonation anomaly in just one of the events (out of 178 examined). Differences in the onset wave trains are attributed largely to differences in the firing patterns. Time independent spectral modulations have been observed in seismic signals produced by delay-fired mining events in mining regions throughout the world. The Novosibirsk trend is no exception to this rule. Delay-fired events in many mining regions, such as Kuzbass/Abakan, are also commonly associated with enhanced long-period (2- to 8-s) surface waves. The mine blasts in Russian mining regions appear, seismically, to resemble large blasts recorded in other regions (such as Wyoming). Techniques found to be effective in Wyoming, reviewed by...

Michael Hedlin University; Michael A. H. Hedlin

2002-01-01T23:59:59.000Z

72

Voice Activity Detection in the Tiger Platform.  

E-Print Network (OSTI)

?? Sectra Communications AB has developed a terminal for encrypted communication called the Tiger platform. During voice communication delays have sometimes been experienced resulting in… (more)

Thorell, Hampus

2006-01-01T23:59:59.000Z

73

Bioscience and Health Research Activities in MML  

Science Conference Proceedings (OSTI)

... Development of an Amino Acid (in Solution) Standard Reference Material. Digital PCR. « Prev 1 2 3 4 5 ... 7 8 Next ». Credit ...

2013-03-13T23:59:59.000Z

74

Thermally Activated Dislocation Processes in FCC Metals  

Science Conference Proceedings (OSTI)

Numerical Simulation of the Erosion in the Hearth of COREX Melter Gasifier under the Condition of Different Drainage Type · Numerical Study on Behavior of

75

Hyperalgesic activity of kisspeptin in mice  

E-Print Network (OSTI)

?l) into the plantar surface of the right hind paw using a 10 ?l luertip-syringe (Hamilton) fitted with a 30-gauge needle. p234 (Sigma- Aldrich, St. Louis, MO) was dissolved in phosphate buf- fered saline (PBS) and injected in a volume of 3 ?l...

Spampinato, Simona; Trabucco, Angela; Biasiotta, Antonella; Biagioni, Francesca; Cruccu, Giorgio; Copani, Agata; Colledge, William H; Sortino, Maria Angela; Nicoletti, Ferdinando; Chiechio, Santina

2011-11-23T23:59:59.000Z

76

Ethylene Market Activity in the 1990s  

E-Print Network (OSTI)

Ethylene pricing and profitabillty has been on a roller coaster for the past 5 years, and it appears that the near term scenario will not change. Overly ambitious capacity building which occurred in the late 1970s, combined with industrial stagnation in the early 1980s produced overcapacity, miserable profits and the industry shakeout which was experienced in the mid 1980s. This was followed by a gradual but continuous increase in demand accompanied by no significant new capacity. The result was firm pricing, high capacity utilization, spot shortages and exceptionally good profitability between 1987-1989. These profits only encouraged producers to debottleneck existing capacity, and buyers to build ethylene inventory in the face of increasing prices. The net result this time was eroding margins during the second half of 1989, which have only temporarily been halted by bad weather and plant operating problems. Given this cyclic tendency in the business, we can predict how manufacturing economics will result from projected changes in the existing global supply and demand for ethylene. This can be used to estimate industry profitability, and hence selling prices once operating costs are determined.

Field, S.; McCormack, G.

1990-06-01T23:59:59.000Z

77

Well-logging activities in Russia  

Science Conference Proceedings (OSTI)

The report is a brief survey of the current state of well-logging service in Russia (number and types of crews, structure of well-logging jobs, types of techniques used, well-logging equipment, auxiliary downhole jobs, etc.). Types and peculiarities of well data acquisition and processing hardware and software are discussed (petrophysics included). New well-logging technologies used in Russia (new methods of electric logging data processing, electromagnetic logging, pulse neutron logging, nuclear magnetic resonance logging, acoustic tomography, logging-testing-logging technique, etc.) are surveyed. Comparison of the Tengiz field (Kazakhstan) well data obtained by Schlumberger and Neftegazgeofizika Association crews is given. Several problems and drawbacks in equipment and technology used by well-logging crews in Russia are discussed.

Savostyanov, N.A. (Neftegazgeofizika, Moscow (Russian Federation))

1993-09-01T23:59:59.000Z

78

OBSERVING CORONAL NANOFLARES IN ACTIVE REGION MOSS  

SciTech Connect

The High-resolution Coronal Imager (Hi-C) has provided Fe XII 193A images of the upper transition region moss at an unprecedented spatial ({approx}0.''3-0.''4) and temporal (5.5 s) resolution. The Hi-C observations show in some moss regions variability on timescales down to {approx}15 s, significantly shorter than the minute-scale variability typically found in previous observations of moss, therefore challenging the conclusion of moss being heated in a mostly steady manner. These rapid variability moss regions are located at the footpoints of bright hot coronal loops observed by the Solar Dynamics Observatory/Atmospheric Imaging Assembly in the 94 A channel, and by the Hinode/X-Ray Telescope. The configuration of these loops is highly dynamic, and suggestive of slipping reconnection. We interpret these events as signatures of heating events associated with reconnection occurring in the overlying hot coronal loops, i.e., coronal nanoflares. We estimate the order of magnitude of the energy in these events to be of at least a few 10{sup 23} erg, also supporting the nanoflare scenario. These Hi-C observations suggest that future observations at comparable high spatial and temporal resolution, with more extensive temperature coverage, are required to determine the exact characteristics of the heating mechanism(s).

Testa, Paola; DeLuca, Ed; Golub, Leon; Korreck, Kelly; Weber, Mark [Smithsonian Astrophysical Observatory, 60 Garden street, MS 58, Cambridge, MA 02138 (United States); De Pontieu, Bart; Martinez-Sykora, Juan; Title, Alan [Lockheed Martin Solar and Astrophysics Lab, Org. A021S, Bldg. 252, 3251 Hanover Street, Palo Alto, CA 94304 (United States); Hansteen, Viggo [Institute of Theoretical Astrophysics, University of Oslo, P.O. Box 1029 Blindern, N-0315 Oslo (Norway); Cirtain, Jonathan; Winebarger, Amy; Kobayashi, Ken [NASA Marshall Space Flight Center, ZP 13, Huntsville, AL 35812 (United States); Kuzin, Sergey [P. N. Lebedev Physical institute of the Russian Academy of Sciences, Leninskii prospekt, 53, 119991 Moscow (Russian Federation); Walsh, Robert [University of Central Lancashire, Lancashire, Preston PR1 2HE (United Kingdom); DeForest, Craig, E-mail: ptesta@cfa.harvard.edu [Southwest Research Institute, 1050 Walnut Street, Suite 300, Boulder, CO 80302 (United States)

2013-06-10T23:59:59.000Z

79

Modeling active electrolocation in weakly electric fish  

E-Print Network (OSTI)

In this paper, we provide a mathematical model for the electrolocation in weakly electric fishes. We first investigate the forward complex conductivity problem and derive the approx- imate boundary conditions on the skin of the fish. Then we provide a dipole approximation for small targets away from the fish. Based on this approximation, we obtain a non-iterative location search algorithm using multi-frequency measurements. We present numerical experi- ments to illustrate the performance and the stability of the proposed multi-frequency location search algorithm. Finally, in the case of disk- and ellipse-shaped targets, we provide a method to reconstruct separately the conductivity, the permittivity, and the size of the targets from multi-frequency measurements.

Ammari, Habib; Garnier, Josselin

2012-01-01T23:59:59.000Z

80

RECURRENT PERIHELION ACTIVITY IN (3200) PHAETHON  

SciTech Connect

We present a study of planet-crossing asteroid (3200) Phaethon at three successive perihelia in 2009, 2010, and 2012, using the NASA STEREO spacecraft. Phaethon is clearly detected in 2009 and 2012, but not in 2010. In both former years, Phaethon brightened unexpectedly by {approx}1 mag at large phase angles, inconsistent with the {approx}1 mag of steady fading expected from a discrete, macroscopic body over the same phase angle range. With a perihelion distance of 0.14 AU and surface temperatures up to {approx}1000 K, a thermal origin of this anomalous brightening is strongly suspected. However, simple thermal emission from Phaethon is too weak, by a factor >10{sup 3}, to explain the brightening. Nor can ice survive on this body, ruling out comet-like sublimation. Our preferred explanation is that brightening occurs as a result of dust produced and ejected from Phaethon, perhaps by thermal fracture and/or thermal decomposition of surface minerals when near perihelion. A contribution from prompt emission by oxygen released by desiccation of surface minerals cannot be excluded. We infer an ejected mass of order 4 Multiplication-Sign 10{sup 8} a{sub mm} kg per outburst, where a{sub mm} is the mean dust radius in millimeters. For plausible dust radii, this mass is small compared to the estimated mass of Phaethon ({approx}2 Multiplication-Sign 10{sup 14} kg) and to the mass of the Geminid stream (10{sup 12}-10{sup 13} kg) with which Phaethon is dynamically associated. Perihelion mass-loss events like those observed in 2009 and 2012 contribute to, but do not necessarily account for the Geminids stream mass.

Li Jing; Jewitt, David, E-mail: jli@igpp.ucla.edu [Department of Earth and Space Sciences, University of California at Los Angeles, Los Angeles, CA (United States)

2013-06-15T23:59:59.000Z

Note: This page contains sample records for the topic "activities in cluding" 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

Deep frac activity breaks records in Rockies  

SciTech Connect

Record depths and extent of massive hydraulic fracture treatments have been reported in central Wyoming recently. Dowell Division of Dow Chemical Co. pumped 250,000 lb of bauxite through 24 perforations between 18,970 and 19,253 ft near Lysite, and Halliburton Services forced 110,140 lb of bauxite through a set of perforations between 20,064 and 20,100 ft in the Madden Gas Field. Dowell also treated another Madden Field well with 340,000 lb of bauxite between 20,031 and 20,099 ft. The Dowell treatments utilized the new YF400 frac fluid to deal with static bottom-hole temperatures.

Not Available

1980-07-01T23:59:59.000Z

82

Research Activities in the Hyperspectral Computing  

E-Print Network (OSTI)

hyperspectral images using high performance computing architectures; this research has been funded and Processing (2009, 2010, 2011 and 2012), and the SPIE Conference on High Performance Computing in Remote Sensing (2011 and 2012). The group has edited the first textbook focused on high performance computing

Chang, Chein-I

83

Butterfly Diagram and Activity Cycles in HR 1099  

E-Print Network (OSTI)

We analyze photometric data of the active RS CVn--type star HR 1099 for the years 1975--2006 with an inversion technique and reveal the nature of two activity cycles of 15--16 yr and 5.3$\\pm$0.1 yr duration. The 16 yr cycle is related to variations of the total spot area and is coupled with the differential rotation, while the 5.3 yr cycle is caused by the symmetric redistribution of the spotted area between the opposite stellar hemispheres (flip-flop cycle). We recover long-lived active regions comprising two active longitudes that migrate in the orbital reference frame with a variable rate because of the differential rotation along with changes in the mean spot latitudes. The migration pattern is periodic with the 16 yr cycle. Combining the longitudinal migration of the active regions with a previously measured differential rotation law, we recover the first stellar butterfly diagram without an assumption about spot shapes. We find that mean latitudes of active regions at opposite longitudes change antisymmetrically in the course of the 16 yr cycle: while one active region migrates to the pole, the other approaches the equator. This suggests a precession of the global magnetic field with respect to the stellar rotational axis.

S. V. Berdyugina; G. W. Henry

2007-03-20T23:59:59.000Z

84

Active Faulting in the Coso Geothermal Field, Eastern California | Open  

Open Energy Info (EERE)

Faulting in the Coso Geothermal Field, Eastern California Faulting in the Coso Geothermal Field, Eastern California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Active Faulting in the Coso Geothermal Field, Eastern California Details Activities (1) Areas (1) Regions (0) Abstract: New mapping documents a series of late Quaternary NNE-striking normal faults in the central Coso Range that dip northwest, toward and into the main production area of the Coso geothermal field. The faults exhibit geomorphic features characteristic of Holocene activity, and locally are associated with fumaroles and hydothermal alteration. The active faults sole into or terminate against the brittle-ductile transition zone (BDT) at a depth of about 4 to 5 km. The BDT is arched upward over a volume of crust

85

Identification of active users in synchronous CDMA multiuser detection  

Science Conference Proceedings (OSTI)

The level of multiple access interference (MAI) in code division multiple access (CDMA) communication systems is a time-varying parameter related to the number of active users. Almost all existing multiuser detection schemes were designed based on a ...

Wei-Chiang Wu; Kwang-Cheng Chen

2006-09-01T23:59:59.000Z

86

Cloud-to-Ground Lightning Activity in Mesoscale Convective Complexes  

Science Conference Proceedings (OSTI)

A study of cloud-to-ground lightning activity attending an important subclass of mesoscale convective weather systems called the mesoscale convective complex shows that groun discharge flash rates in excess of 1000 h?1 can be sustained on average ...

S. J. Goodman; D. R. MacGorman

1986-12-01T23:59:59.000Z

87

ORISE: Supporting ARRA funded cleanup activities in Oak Ridge...  

NLE Websites -- All DOE Office Websites (Extended Search)

activities at ORNL, East Tennessee Technology Park (ETTP) and the Y-12 National Security Complex. ORISE's 8.5 million scope of work involves support to DOE in the...

88

Heat transport in active harmonic chains  

SciTech Connect

We show that a harmonic lattice model with amplifying and attenuating elements, when coupled to two thermal baths, exhibits unique heat transport properties. Some of these novel features include anomalous nonequilibrium steady-state heat currents, negative differential thermal conductance, as well as nonreciprocal heat transport. We find that when these elements are arranged in a PT-symmetric manner, the domain of existence of the nonequilibrium steady state is maximized. We propose an electronic experimental setup based on resistive-inductive-capacitive (RLC) transmission lines, where our predictions can be tested.

Zheng, Mei C.; Ellis, Fred M.; Kottos, Tsampikos; Fleischmann, Ragnar; Geisel, Theo; Prosen, Tomaz [Department of Physics, Wesleyan University, Middletown, Connecticut 06459 (United States); Max-Planck-Institute for Dynamics and Self-organization, Am Fassberg 17, D-37077 Goettingen (Germany) and Institute for Nonlinear Dynamics, Department of Physics, University of Goettingen, D-37077 Goettingen (Germany); Physics Department, Faculty of Mathematics and Physics, University of Ljubljana, Ljubljana (Slovenia)

2011-08-15T23:59:59.000Z

89

Personal and environmental correlates of active travel and physical activity in a deprived urban population  

E-Print Network (OSTI)

assessment of the literature on the relationships among transportation, land use, and physical activity Washington, DC: Trans- portation Research Board and Institute of Medicine Committee on Physical Activity, Health, Transportation, and Land Use; 2004. 8...

Ogilvie, David; Mitchell, Richard; Mutrie, Nanette; Petticrew, Mark; Platt, Stephen

2008-08-27T23:59:59.000Z

90

Technical support for geopressured-geothermal well activities in Louisiana  

DOE Green Energy (OSTI)

Continuous recording microearthquake monitoring networks have been established around US Department of Energy (DOE) geopressured-geothermal design wells in southwestern Louisiana and southeastern Texas since summer 1980 to assess the effects well development may have had on subsidence and growth-fault activation. This monitoring has shown several unusual characteristics of Gulf Coast seismic activity. The observed activity is classified into two dominant types, one with identifiable body phases (type 1) and the other with only surface-wave signatures (type 2). During this reporting period no type 1 or body-wave events were reported. A total of 230 type 2 or surface-wave events were recorded. Origins of the type 2 events are still not positively understood; however, little or no evidence is available to connect them with geopressured-geothermal well activity. We continue to suspect sonic booms from military aircraft or some other human-induced source. 37 refs., 16 figs., 6 tabs.

Not Available

1991-07-01T23:59:59.000Z

91

EIA - Annual Energy Outlook 2008 - Trends in Economic Activity  

Gasoline and Diesel Fuel Update (EIA)

Trends in Economic Activity Trends in Economic Activity Annual Energy Outlook 2008 with Projections to 2030 Trends in Economic Activity Figure 32. Average annual growth rates fo real GDP, labor force, and productivity, 2006-2030 (percent per year). Need help, contact the National Energy Information Center at 202-586-8800. figure data Figure 33. Average annual inflation, interest, and unemployment rates, 2006-2030 (percent per year). Need help, contact the National Energy Information Center at 202-586-8800. figure data AEO2008 Presents Three Views of Economic Growth AEO2008 presents three views of economic growth for the 2006-2030 projection period. Economic growth depends mainly on growth in the labor force and productivity. In the reference case, the labor force grows by an average of 0.7 percent per year; labor productivity in the nonfarm business

92

EIA - Annual Energy Outlook 2009 - Trends in Economic Activity  

Gasoline and Diesel Fuel Update (EIA)

Trends in Economic Activity Trends in Economic Activity Annual Energy Outlook 2009 with Projections to 2030 Trends in Economic Activity AEO2009 Presents Three Views of Economic Growth Figure 27. Average annual growth rates of real GDP, labor force, and productivity in three cases, 2007-2030 (percent per year). Need help, contact the National Energy Information Center at 202-586-8800. figure data Figure 28. Average annual inflation, interest, and unemployment rates in three cases, 2007-2030 (percent per year). Need help, contact the National Energy Information Center at 202-586-8800. figure data Figure 29. Sectoral composition of industrial output growth rates in three cases, 2007-2030 (percent per year). Need help, contact the National Energy Information Center at 202-586-8800.

93

Design and development of algorithms for identifying termination of triggers in active databases  

Science Conference Proceedings (OSTI)

An active database system is a conventional database system extended with a facility for managing triggers (or active rules). Active database systems can react to the occurrence of some predefined events automatically. In many applications, active rules ...

R. Manicka Chezian; T. Devi

2011-12-01T23:59:59.000Z

94

Blind Geothermal System Exploration in Active Volcanic Environments;  

Open Energy Info (EERE)

System Exploration in Active Volcanic Environments; System Exploration in Active Volcanic Environments; Multi-phase Geophysical and Geochemical Surveys in Overt and Subtle Volcanic Systems, Hawaii and Maui Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Blind Geothermal System Exploration in Active Volcanic Environments; Multi-phase Geophysical and Geochemical Surveys in Overt and Subtle Volcanic Systems, Hawai'i and Maui Project Type / Topic 1 Recovery Act: Geothermal Technologies Program Project Type / Topic 2 Validation of Innovative Exploration Technologies Project Description The project will perform a suite of stepped geophysical and geochemical surveys and syntheses at both a known, active volcanic system at Puna, Hawai'i and a blind geothermal system in Maui, Hawai'i. Established geophysical and geochemical techniques for geothermal exploration including gravity, major cations/anions and gas analysis will be combined with atypical implementations of additional geophysics (aeromagnetics) and geochemistry (CO2 flux, 14C measurements, helium isotopes and imaging spectroscopy). Importantly, the combination of detailed CO2 flux, 14C measurements and helium isotopes will provide the ability to directly map geothermal fluid upflow as expressed at the surface. Advantageously, the similar though active volcanic and hydrothermal systems on the east flanks of Kilauea have historically been the subject of both proposed geophysical surveys and some geochemistry; the Puna Geothermal Field (Puna) (operated by Puna Geothermal Venture [PGV], an Ormat subsidiary) will be used as a standard by which to compare both geophysical and geochemical results.

95

Double Modelling of the Dynamic of Activities in Rural Municipalities  

E-Print Network (OSTI)

Land use choices and activity prevalence in a selected territory are determined by individual preferences constrained by the characteristic of the analysed zone: population density, soil properties, urbanization level and other similar factors can drive individuals to make different kind of decisions about their occupations. Different approaches can be used to describe land use change, occupation prevalence and their reciprocal inter-relation. In this paper we describe two different kinds of approaches: an agent based model, centred on individual choices and an aggregated model describing the evolution of activity prevalence in terms of coupled differential equation. We use and we compare the two models to analyse the effect of territorial constraints, like the lack of employment in determined sectors, on the possible activity prevalence scenarios.

Ternes, S; Huet, S; Deffuant, G

2009-01-01T23:59:59.000Z

96

Construction monitoring activities in the ESF starter tunnel  

SciTech Connect

In situ design verification activities am being conducted in the North Ramp Starter Tunnel of the Yucca Mountain Project Exploratory Studies Facility. These activities include: monitoring the peak particle velocities and evaluating the damage to the rock mass associated with construction blasting, assessing the rock mass quality surrounding the tunnel, monitoring the performance of the installed ground support, and monitoring the stability of the tunnel. In this paper, examples of the data that have been collected and preliminary conclusions from the data are presented.

Pott, J. [Sandia National Labs., Albuquerque, NM (United States); Carlisle, S. [Agapito (J.F.T.) and Associates, Inc., Grand Junction, CO (United States)

1994-05-01T23:59:59.000Z

97

Update on EH-23 activities in Calendar Year 1993  

SciTech Connect

This report briefly describes the activities undertaken by the US DOE`s Office of Environmental Guidance (EH-23) of the Office of the Deputy Assistant Secretary for Environment (EH-20) in Calendar Year (CY) 1993 in seven major areas: (1) regulatory review and analysis; (2) environmental policy and guidance; (3) environmental training courses and workshops; (4) workgroups and committees; (5) environmental regulatory management support; (6) special projects and other activities; and (7) special presentations. A list of selected environmental guidance memoranda and documents distributed by EH-23 in CY 1993 is also included.

Not Available

1994-07-01T23:59:59.000Z

98

Dynamics of similariton pulses in length-inhomogeneous active fibres  

SciTech Connect

The possibility of producing self-similar frequency-modulated (FM) optical wave packets in length-inhomogeneous active fibres is studied for optical pulses with the initial Gaussian, hyperbolic-secant or parabolic shape. The conditions for converting these pulses into stable parabolic-type pulses with a constant frequency-modulation rate are considered. It is shown that the use of FM pulses of parabolic shape in active and length-inhomogeneous fibres can ensure the creation of an all-fibre generator-amplifier-compressor system with peak powers up to 1 MW and higher in the generated pulses. (nonlinear optical phenomena)

Zolotovskii, Igor' O; Sementsov, Dmitrii I; Yavtushenko, M S [Ulyanovsk State University, Ulyanovsk (Russian Federation); Senatorov, A K; Sysolyatin, A A [Fiber Optics Research Center, Russian Academy of Sciences, Moscow (Russian Federation)

2010-05-26T23:59:59.000Z

99

Bringing a Range of Supported Mitigation Activities in Selected Countries  

Open Energy Info (EERE)

Bringing a Range of Supported Mitigation Activities in Selected Countries Bringing a Range of Supported Mitigation Activities in Selected Countries to the Next Level Jump to: navigation, search Name Bringing a Range of Supported Mitigation Activities in Selected Countries to the Next Level Agency/Company /Organization Energy Research Centre of the Netherlands (ECN), Ecofys Sector Climate Focus Area Renewable Energy, Agriculture, People and Policy Topics Low emission development planning, Policies/deployment programs Website http://www.ecn.nl/docs/library Program Start 2011 Program End 2014 Country Chile, Indonesia, Kenya, Peru, Tunisia South America, South-Eastern Asia, Eastern Africa, South America, Northern Africa References ECN[1] Ecofys[2] Program Overview This project runs from March 2012 to December 2014, and is a collaboration

100

Nuclear Activity in UZC Compact Groups of Galaxies  

E-Print Network (OSTI)

We analyse the level of nuclear activity in galaxies belonging to UZC-CGs. Spectra are available for 868 galaxies (90% of the whole catalog); 67 % of them show nuclear activity (AGN or Star formation). To carry out a detailed study about the nuclear activity and its relationship with properties of the host galaxy and parent group we select a sample of 215 groups with spectra available for all their members. From the analysis of this sample and using diagnostic diagrams to do the nuclear classification we found that 37% of emission galaxies host an HII nuclear region, 43% an AGN and 20% a Transition Object. AGNs are located mainly in bright early type galaxies meanwhile HII are in fainter and later types. Groups dominated by HII show significant lower velocity dispersions and larger sizes than groups dominated by AGNs or TO.

M. A. Martinez; A. del Olmo; P. Focardi; J. Perea

2006-11-02T23:59:59.000Z

Note: This page contains sample records for the topic "activities in cluding" 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

EXPLORING THE CONNECTION BETWEEN STAR FORMATION AND ACTIVE GALACTIC NUCLEUS ACTIVITY IN THE LOCAL UNIVERSE  

SciTech Connect

We study a combined sample of 264 star-forming, 51 composite, and 73 active galaxies using optical spectra from the Sloan Digital Sky Survey (SDSS) and mid-infrared (mid-IR) spectra from the Spitzer Infrared Spectrograph. We examine optical and mid-IR spectroscopic diagnostics that probe the amount of star formation and relative energetic contributions from star formation and an active galactic nucleus (AGN). Overall we find good agreement between optical and mid-IR diagnostics. Misclassifications of galaxies based on the SDSS spectra are rare despite the presence of dust obscuration. The luminosity of the [Ne II] 12.8 {mu}m emission line is well correlated with the star formation rate measured from the SDSS spectra, and this holds for the star-forming, composite, and AGN-dominated systems. AGNs show a clear excess of [Ne III] 15.6 {mu}m emission relative to star-forming and composite systems. We find good qualitative agreement between various parameters that probe the relative contributions of the AGN and star formation, including the mid-IR spectral slope, the ratio of the [Ne V] 14.3 {mu}m to [Ne II] {mu}m 12.8 fluxes, the equivalent widths of the 7.7 {mu}m, 11.3 {mu}m, and 17 {mu}m polycyclic aromatic hydrocarbon (PAH) features, and the optical 'D' parameter which measures the distance at which a source lies from the locus of star-forming galaxies in the optical BPT emission-line diagnostic diagram. We also consider the behavior of the three individual PAH features by examining how their flux ratios depend upon the degree of AGN dominance. We find that the PAH 11.3 {mu}m feature is significantly suppressed in the most AGN-dominated systems.

LaMassa, Stephanie M.; Heckman, T. M. [Johns Hopkins University, Department of Physics and Astronomy, Baltimore, MD 21218 (United States); Ptak, A. [NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States); Schiminovich, D.; Bertincourt, B. [Columbia University, Department of Astronomy, New York, NY 10027 (United States); O'Dowd, M. [Lehman College, City University of New York, Bronx, NY 10468 (United States)

2012-10-10T23:59:59.000Z

102

Current Activities in Support of Building Energy Codes  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Building Technologies Program buildings.energy.gov Building Technologies Program buildings.energy.gov Current Activities in Support of Building Energy Codes Jeremy Williams Building Technologies Program Energy Efficiency and Renewable Energy U. S. Department of Energy March 2, 2012 2 | Building Technologies Program buildings.energy.gov 2 Purpose Purpose: To provide an update on DOE activities related to the development of proposed code changes and deployment of existing codes: - Goals and direction - Activity updates - Available resources 3 | Building Technologies Program buildings.energy.gov Goals and Direction 3 4 | Building Technologies Program buildings.energy.gov 30% Initiative for Increased Energy Savings * Commercial-Published in 2010 - ANSI/ASHRAE/IESNA Standard 90.1-2010 with savings of

103

A Look at Principal Building Activities in Commercial Buildings  

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

Home > Commercial Buildings Home> Special Topics > 1995 Principal Home > Commercial Buildings Home> Special Topics > 1995 Principal Building Activities Office Education Health Care Retail and Service Food Service Food Sales Lodging Religious Worship Public Assembly Public Order and Safety Warehouse and Storage Vacant Other Summary Comparison Table (All Activities) More information on the: Commercial Buildings Energy Consumption Survey A Look at ... Principal Building Activities in the Commercial Buildings Energy Consumption Survey (CBECS) When you look at a city skyline, most of the buildings you see are commercial buildings. In the CBECS, commercial buildings include office buildings, shopping malls, hospitals, churches, and many other types of buildings. Some of these buildings might not traditionally be considered "commercial," but the CBECS includes all buildings that are not residential, agricultural, or industrial.

104

Synoptic Activity in the Arctic Basin, 1979–85  

Science Conference Proceedings (OSTI)

Synoptic activity in the Arctic basin from 70°–907deg;N is examined for the period 1979–85, using improved pressure analyses incorporating data from a network of drifting buoys. Geographical and seasonal variations in cyclone and anticyclone ...

Mark C. Serreze; Roger G. Barry

1988-12-01T23:59:59.000Z

105

Using Active Customer Participation in Managing Distribution Systems  

E-Print Network (OSTI)

#12;Smart Grid Distribution Advancement Introduction 3 #12;Smart Grid What would be new in smart grid1 Data Request Consumer Privacy Regulatory Requirements 15 #12;Distribution Operation Examples 16 #12Using Active Customer Participation in Managing Distribution Systems Visvakumar Aravinthan

Van Veen, Barry D.

106

Natural Radionuclide Activity Concentrations In Spas Of Argentina  

Science Conference Proceedings (OSTI)

Geothermal waters have been used on a large scale for bathing, drinking and medical purposes. These waters can contain natural radionuclides that may increase the exposure to people. In this work the most important natural radionuclide activity concentrations in different thermal spas of Argentina were measured to characterize waters and to evaluate the exposure of workers and members of the public.

Gnoni, G.; Czerniczyniec, M.; Canoba, A.; Palacios, M. [Autoridad Regulatoria Nuclear, Av. Del Libertador 8250, Ciudad de Bs. As. (1429) (Argentina)

2008-08-07T23:59:59.000Z

107

Original article Diastatic activity in some unifloral honeys  

E-Print Network (OSTI)

groups of unifloral honey were made to study variability according to the botanical origin of the honey an abundant nectar flow (Sipos, 1964), or seasonal ac- tivity of the pharyngeal glands (Halber- stadt, 1980 variability of diastase activity in relation to the botani- cal origin of the honey. In addition, to con

Recanati, Catherine

108

Evolution of emission line activity in intermediate mass young stars  

E-Print Network (OSTI)

We present optical spectra of 45 intermediate mass Herbig Ae/Be stars. Together with the multi-epoch spectroscopic and photometric data compiled for a large sample of these stars and ages estimated for individual stars by using pre-main sequence evolutionary tracks, we have studied the evolution of emission line activity in them. We find that, on average, the H_alpha emission line strength decreases with increasing stellar age in HAeBe stars, indicating that the accretion activity gradually declines during the PMS phase. This would hint at a relatively long-lived (a few Myr) process being responsible for the cessation of accretion in Herbig Ae/Be stars. We also find that the accretion activity in these stars drops substantially by ~ 3 Myr. This is comparable to the timescale in which most intermediate mass stars are thought to lose their inner disks, suggesting that inner disks in intermediate mass stars are dissipated rapidly after the accretion activity has fallen below a certain level. We, further find a relatively tight correlation between strength of the emission line and near-infrared excess due to inner disks in HAeBe stars, indicating that the disks around Herbig Ae/Be stars cannot be entirely passive. We suggest that this correlation can be understood within the frame work of the puffed-up inner rim disk models if the radiation from the accretion shock is also responsible for the disk heating.

P. Manoj; H. C. Bhatt; G. Maheswar; S. Muneer

2006-08-25T23:59:59.000Z

109

Fluorine gettering by activated charcoal in a radiation environment  

SciTech Connect

Activated charcoal has been shown to be an effective gettering agent for the fluorine gas that is liberated in a radiation environment. Even though activated charcoal is a commonly used getter, little is known about the radiation stability of the fluorine-charcoal product. This work has shown that not only is the product stable in high gamma radiation fields, but also that radiation enhances the capacity of the charcoal for the fluorine. The most useful application of this work is with the Molten Salt Reactor Experiment (MSRE) fuel salt because the radioactive components (fission products and actinides) cause radiolytic damage to the solid LiF-BeF/sub 2/-ZrF/sub 4/-UF/sub 4/ (64.5, 30.3, 5.0, 0.13 mol %, respectively) resulting in the liberation of fluorine gas. This work has also demonstrated that the maximum damage to the fuel salt by approx.3 /times/ 10/sup 7/ R/h gamma radiation is approximately 2%, at which point the rate of recombination of fluorine with active metal sites within the salt lattice equals the rate of fluorine generation. The enhanced reactivity of the activated charcoal and radiation stability of the product ensures that the gettered fluorine will stay sequestered in the charcoal.

Felker, L.K.; Toth, L.M.

1988-10-01T23:59:59.000Z

110

Probing Active to Sterile Neutrino Oscillations in the LENS Detector  

E-Print Network (OSTI)

Sterile neutrino conversion in meter scale baselines can be sensitively probed using monoenergetic, sub-MeV, flavor pure e-neutrinos from an artificial MCi source and the unique technology of LENS designed to oberve the low energy solar neutrino spectrum via tagged CC e-neutrino capture in 115-In. Active-sterile oscillations can be directly observed in the granular LENS detector itself to critically test and extend resuls of short baseline accelerator and reactor experiments.

Christian Grieb; Jonathan Link; R. S. Raghavan

2006-11-13T23:59:59.000Z

111

Envelope evolution of a laser pulse in an active medium  

Science Conference Proceedings (OSTI)

The authors show that the envelope velocity, v{sub env}, of a short laser pulse can, via propagation in an active medium, be made less than, equal to, or even greater than c, the vacuum phase velocity of light. Simulation results, based on moving frame propagation equations coupling the laser pulse, active medium and plasma, are presented, as well as equations that determines the design value of super- and sub-luminous v{sub env}. In this simulation the laser pulse evolves in time in a moving frame as opposed to their earlier work where the profile was fixed. The elimination of phase slippage and pump depletion effects in the laser wakefield accelerator is discussed as a particular application. Finally they discuss media properties necessary for an experimental realization of this technique.

Fisher, D.L.; Tajima, T.; Downer, M.C.; Siders, C.W.

1994-11-01T23:59:59.000Z

112

Application Of Active Audiomagnetotellurics (Aamt) In The Geothermal Field  

Open Energy Info (EERE)

Audiomagnetotellurics (Aamt) In The Geothermal Field Audiomagnetotellurics (Aamt) In The Geothermal Field Of Travale, Tuscany Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Application Of Active Audiomagnetotellurics (Aamt) In The Geothermal Field Of Travale, Tuscany Details Activities (0) Areas (0) Regions (0) Abstract: In October 1981 the AAMT method was tested in the geothermal field of Travale. This method is based on the MT method, but uses artificial EM fields excited by a transmitter some kilometres from the receiving station. The transmitter consists of a switch mode amplifier for the lower frequency band (< 300 Hz) and six stacked linear amplifiers for the high frequency band. Maximum output is about 5 kW. For measurement of the very small EM field at the receiver the correlation technique is used

113

Sub-threshold spinal cord stimulation facilitates spontaneous motor activity in spinal rats  

E-Print Network (OSTI)

facilitates spontaneous motor activity in spinal rats.facilitates spontaneous motor activity in spinal rats Paragtreadmill (electrical enabling motor control, eEmc) after a

2013-01-01T23:59:59.000Z

114

EERE-Supported International Activities in Latin America (Fact Sheet)  

SciTech Connect

The Office of Energy Efficiency and Renewable Energy (EERE) is involved in a variety of international initiatives, partnerships, and events that promote greater understanding and use of renewable energy (RE) and energy efficiency (EE) worldwide. In support of the Energy and Climate Partnership of the Americas (ECPA), EERE is working with several Latin American countries to advance EE and RE deployment for economic growth, energy security, poverty relief, and disaster recovery goals. This fact sheet highlights those activities.

2010-05-01T23:59:59.000Z

115

Activities and Accomplishments in MY 2005/FY 2006  

SciTech Connect

From vehicle acquisition and credit trading to exemptions and outreach activity, the Annual Report summarizes the State & Alternative Fuel Provider Activity's accomplishments during FY 2004/FY 2005.

Not Available

2006-10-01T23:59:59.000Z

116

Activities and Accomplishments in MY 2004/FY 2005  

DOE Green Energy (OSTI)

From vehicle acquisition and credit trading to exemptions and outreach activity, the Annual Report summarizes the State & Alternative Fuel Provider Activity's accomplishments during MY 2004/FY 2005.

Not Available

2005-10-01T23:59:59.000Z

117

Microscopic calculation of the free energy cost for activated transport in glass-forming liquids  

Science Conference Proceedings (OSTI)

Activated transport in liquids—supercooled liquids in particular—occurs via mutual nucleation of alternative

Pyotr Rabochiy; Vassiliy Lubchenko

2013-01-01T23:59:59.000Z

118

Estimation of Carbon Credits in Carbon Dioxide Sequestration Activities  

NLE Websites -- All DOE Office Websites (Extended Search)

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

119

Fission Cycling in Supernova Nucleosynthesis: Active-Sterile Neutrino Oscillations  

E-Print Network (OSTI)

We investigate nucleosynthesis in the supernovae post-core bounce neutrino-driven wind environment in the presence of active-sterile neutrino transformation. We consider active-sterile neutrino oscillations for a range of mixing parameters: vacuum mass-squared differences of 0.1 eV^2 10^-4. We find a consistent r-process pattern for a large range of mixing parameters that is in rough agreement with the halo star CS 22892-052 abundances and the pattern shape is determined by fission cycling. We find that the allowed region for the formation of the r-process peaks overlaps the LSND and NSBL (3+1) allowed region.

J. Beun; G. C. McLaughlin; R. Surman; W. R. Hix

2006-02-01T23:59:59.000Z

120

Circumnuclear Dust in Nearby Active and Inactive Galaxies. II. Bars, Nuclear Spirals, and the Fueling of Active Galactic Nuclei  

E-Print Network (OSTI)

(Abridged) We present a detailed study of the relation between circumnuclear dust morphology, host galaxy properties, and nuclear activity in nearby galaxies. We use our sample of 123 nearby galaxies with visible--near-infrared colormaps from the Hubble Space Telescope to create well-matched, "paired" samples of 28 active and 28 inactive galaxies, as well as 19 barred and 19 unbarred galaxies, that have the same host galaxy properties. Comparison of the barred and unbarred galaxies shows that grand design nuclear dust spirals are only found in galaxies with a large-scale bar. Tightly wound nuclear dust spirals, in contrast, show a strong tendency to avoid galaxies with large-scale bars. Comparison of the AGN and inactive samples shows that nuclear dust spirals, which may trace shocks and angular momentum dissipation in the ISM, occur with comparable frequency in both active and inactive galaxies. The only difference between the active and inactive galaxies is that several inactive galaxies appear to completely lack dust structure in their circumnuclear region, while none of the AGN lack this structure. The comparable frequency of nuclear spirals in active and inactive galaxies, combined with previous work that finds no significant differences in the frequency of bars or interactions between well-matched active and inactive galaxies, suggests that no universal fueling mechanism for low-luminosity AGN operates at spatial scales greater than ~100 pc radius from the galactic nuclei. The similarities instead suggest that the lifetime of nuclear activity is less than the characteristic inflow time from these spatial scales. An order-of-magnitude estimate of this inflow time is the dynamical timescale. This sets an upper limit of several million years to the lifetime of an individual episode of nuclear activity.

Paul Martini; Michael W. Regan; John S. Mulchaey; Richard W. Pogge

2002-12-17T23:59:59.000Z

Note: This page contains sample records for the topic "activities in cluding" 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

ASSESSMENT OF RELEASE RATES FOR RADIONUCLIDES IN ACTIVATED CONCRETE.  

Science Conference Proceedings (OSTI)

The Maine Yankee (MY) nuclear power plant is undergoing the process of decontamination and decommissioning (D&D). Part of the process requires analyses that demonstrate that any radioactivity that remains after D&D will not cause exposure to radioactive contaminants to exceed acceptable limits. This requires knowledge of the distribution of radionuclides in the remaining material and their potential release mechanisms from the material to the contacting groundwater. In this study the concern involves radionuclide contamination in activated concrete in the ICI Sump below the containment building. Figures 1-3 are schematic representations of the ICI Sump. Figure 2 and 3 contain the relevant dimensions needed for the analysis. The key features of Figures 2 and 3 are the 3/8-inch carbon steel liner that isolates the activated concrete from the pit and the concrete wall, which is between 7 feet and 7 feet 2 inches thick. During operations, a small neutron flux from the reactor activated the carbon steel liner and the concrete outside the liner. Current MY plans call for filling the ICI sump with compacted sand.

SULLIVAN,T.M.

2003-08-23T23:59:59.000Z

122

The activity of calcium in calcium-metal-fluoride fluxes  

Science Conference Proceedings (OSTI)

The standard Gibbs energy of reaction Ca (1) + {und O} (mass pct, in Zr) = CaO (s) has been determined as follows by equilibrating molten calcium with solid zirconium in a CaO crucible: {Delta}G{degree} = {minus}64,300({+-}700) + 19.8({+-}3.5)T J/mol (1,373 to 1,623 K). The activities of calcium in the CaO{sub satd.}-Ca-MF{sub 2} (M: Ca, Ba, Mg) and CaO{sub satd.}-Ca-NaF systems were measured as a function of calcium composition at high calcium contents at 1,473 K on the basis of the standard Gibbs energy. The activities of calcium increase in the order of CaF{sub 2}, BaF{sub 2}, and MgF{sub 2} at the same calcium fraction of these fluxes. The observed activities are compared with those estimated by using the Temkin model for ionic solutions. Furthermore, the possibility of the removal of tramp elements such as tin, arsenic, antimony, bismuth, and lead from carbon-saturated iron by using calcium-metal-fluoride fluxes is discussed.

Ochifuji, Yuichiro; Tsukihashi, Fumitaka; Sano, Nobuo [Univ. of Tokyo (Japan). Dept. of Metallurgy

1995-08-01T23:59:59.000Z

123

SIMULATIONS FOR ACTIVE INTERROGATION OF HEU IN CARGO CONTAINERS  

DOE Green Energy (OSTI)

We describe the results of a Monte Carlo simulation 10 investigate the feasibility of using a pulsed deuterium-tritium (D-T) neutron technique for active interrogation of special nuclear material in cargo containers. Time distributions of fission neutrons from highly enriched uranium induced by a pulsed D-T neutron source were calculated for cargo containers with different hydrogen contents. A simple detector system with polyethylene and cadmium was modeled to calculate the two-group neutron flux at the detector.

LEE, SANG Y. [Los Alamos National Laboratory; BEDDINGFIELD, DAVID H. [Los Alamos National Laboratory; PARK, JAEYOUNG [Los Alamos National Laboratory

2007-01-22T23:59:59.000Z

124

Ne IX emission-line ratios in solar active regions  

Science Conference Proceedings (OSTI)

Emission-line ratios for Ne IX are derived and compared with observational data for solar active regions obtained with the SOLEX B spectrometer on the P78-1 satellite. Excellent agreement is obtained, providing support for the atomic data adopted in the calculations and resolving discrepancies between existing theoretical calculations and solar data. The calculated R-ratio for the low-density limit agrees well with the SOLEX observations. 47 references.

Keenan, F.P.; Mccann, S.M.; Kingston, A.E.; Mckenzie, D.L.

1987-07-01T23:59:59.000Z

125

Stress versus temperature dependent activation energies in creep  

SciTech Connect

The activation energy for creep at low stresses and elevated temperatures is lattice diffusion, where the rate controlling mechanism for deformation is dislocation climb. At higher stresses and intermediate temperatures, the rate controlling mechanism changes from that of dislocation climb to one of obstacle-controlled dislocation glide. Along with this change, there occurs a change in the activation energy. It is shown that a temperature-dependent Gibbs free energy does a good job of correlating steady-state creep data, while a stress-dependent Gibbs free energy does a less desirable job of correlating the same data. Applications are made to copper and a LiF-22 mol. percent CaF2 hypereutectic salt.

Freed, A.D.; Raj, S.V.; Walker, K.P.

1990-01-01T23:59:59.000Z

126

Inactive Period of Western North Pacific Tropical Cyclone Activity in 1998–2011  

Science Conference Proceedings (OSTI)

Tropical cyclone (TC) activity over the western North Pacific (WNP) exhibits a significant interdecadal variation during 1960–2011, with two distinct active and inactive periods each. This study examines changes in TC activity and atmospheric ...

Kin Sik Liu; Johnny C. L. Chan

2013-04-01T23:59:59.000Z

127

A Look at Global Tropical Cyclone Activity during 1995: Contrasting High Atlantic Activity with Low Activity in Other Basins  

Science Conference Proceedings (OSTI)

During 1995, there was a near-record number of named tropical cyclones in the North Atlantic basin. This unusual event fueled speculation that it marked a tangible signal of global climate change, or that it marked a return to a period of higher ...

Mark A. Lander; Charles P. Guard

1998-05-01T23:59:59.000Z

128

Activities of HPS standards committee in environmental remediation  

SciTech Connect

The Health Physics Society (HPS) develops American National Standards in the area of radiation protection using methods approved by the American National Standards Institute (ANSI). Two of its sections, Environmental Health Physics and Contamination Limits, have ongoing standards development which are important to some environmental remediation efforts. This paper describes the role of the HPS standards process and indicates particular standards under development which will be of interest to the reader. In addition, the authors solicit readers to participate in the voluntary standards process by either joining active working groups (WG) or suggesting appropriate and relevant topics which should be placed into the standards process.

Stencel, J.R. [Princeton Univ., NJ (United States). Plasma Physics Lab.; Chen, S.Y. [Argonne National Lab., IL (United States)

1994-12-31T23:59:59.000Z

129

Nuclear Physics Activities in Asia and ANPhA  

Science Conference Proceedings (OSTI)

On 18 July 2009 the Asian Nuclear Physics Association (ANPhA) has been officially launched in Beijing by the representatives from China, Korea, Japan and Vietnam. Since then Australia, India, Mongolia and Taiwan have joined to ANPhA and now the member country/region has increased to eight. Some activities and features on ANPhA are introduced. In addition, pleasant collaboration with Professor Arima by the author in regard to the Gamow-Teller quenching problem is also briefly mentioned.

Sakai, H. [RIKEN Nichina Center, Hirosawa 2-1, Wako, Saitama 351-0198 (Japan)

2011-05-06T23:59:59.000Z

130

Testing the quasi-absolute method in photon activation analysis  

SciTech Connect

In photon activation analysis (PAA), relative methods are widely used because of their accuracy and precision. Absolute methods, which are conducted without any assistance from calibration materials, are seldom applied for the difficulty in obtaining photon flux in measurements. This research is an attempt to perform a new absolute approach in PAA - quasi-absolute method - by retrieving photon flux in the sample through Monte Carlo simulation. With simulated photon flux and database of experimental cross sections, it is possible to calculate the concentration of target elements in the sample directly. The QA/QC procedures to solidify the research are discussed in detail. Our results show that the accuracy of the method for certain elements is close to a useful level in practice. Furthermore, the future results from the quasi-absolute method can also serve as a validation technique for experimental data on cross sections. The quasi-absolute method looks promising.

Sun, Z. J. [Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave., Argonne, IL 60439 (United States); Wells, D. [Physics Department, South Dakota School of Mines and Technology, 501 E. Saint Joseph St. Rapid City, SD 57701 (United States); Starovoitova, V.; Segebade, C. [Idaho Accelerator Center, Idaho State University, 921 S. 8th Ave. Pocatello, ID 83209 (United States)

2013-04-19T23:59:59.000Z

131

PHYSICAL PROPERTIES OF COOLING PLASMA IN QUIESCENT ACTIVE REGION LOOPS  

Science Conference Proceedings (OSTI)

In the present work, we use SOHO/SUMER, SOHO/UVCS, SOHO/EIT, SOHO/LASCO, STEREO/EUVI, and Hinode/EIS coordinated observations of an active region (AR 10989) at the west limb taken on 2008 April 8 to study the cooling of coronal loops. The cooling plasma is identified using the intensities of SUMER spectral lines emitted at temperatures in the 4.15 {EIS and SUMER spectral observations are used to measure the physical properties of the loops. We found that before cooling took place these loops were filled with coronal hole-like plasma, with temperatures in the 5.6 {<=} log T {<=} 5.9 range. SUMER spectra also allowed us to determine the plasma temperature, density, emission measure, element abundances, and dynamic status during the cooling process. The ability of EUVI to observe the emitting region from a different direction allowed us to measure the volume of the emitting region and estimate its emission measure. Comparison with values measured from line intensities provided us with an estimate of the filling factor. UVCS observations of the coronal emission above the active region showed no streamer structure associated with AR 10989 at position angles between 242{sup 0}and 253.{sup 0} EIT, LASCO, and EUVI-A narrowband images and UVCS spectral observations were used to discriminate between different scenarios and monitor the behavior of the active region in time. The present study provides the first detailed measurements of the physical properties of cooling loops, a very important benchmark for theoretical models of loop cooling and condensation.

Landi, E. [Artep, Inc. at Naval Research Laboratory, 4555 Overlook Ave. S.W., 20375-5320, Washington DC (United States); Miralles, M. P. [Harvard-Smithsonian Center for Astrophysics, 60 Garden St., MS-50, Cambridge, MA 02138 (United States); Curdt, W. [Max Planck Institut fuer Sonnensystemforschung, Max Planck Strasse 2, Katlenburg-Lindau 37191 (Germany); Hara, H. [National Astronomical Observatory of Japan, Osawa, Mitaka, Tokyo 181-8588 (Japan)

2009-04-10T23:59:59.000Z

132

Activities and Accomplishments in MY 2005/FY 2006  

SciTech Connect

From vehicle acquisition and credit trading to exemptions and outreach activity, the Annual Report summarizes the State & Alternative Fuel Provider Activity's accomplishments during FY 2004/FY 2005.

2006-10-01T23:59:59.000Z

133

Activities and Accomplishments in MY 2004/FY 2005  

SciTech Connect

From vehicle acquisition and credit trading to exemptions and outreach activity, the Annual Report summarizes the State & Alternative Fuel Provider Activity's accomplishments during MY 2004/FY 2005.

2005-10-01T23:59:59.000Z

134

Monitoring radioactive xenon gas in room air using activated charcoal  

SciTech Connect

A method for monitoring room air for radioactive xenon gas is described. It uses activated charcoal vials, a vacuum source and a well-type scintillation counter. The method may be adapted for detection and identification of any radioactive gas excluding those with ultra-short half-lives. Sampling room air during xenon-133 ({sup 133}Xe) ventilation lung studies was performed using this technique. The results show that low concentrations of {sup 133}Xe in room air can be reliably detected and that staff exposure to {sup 133}Xe at this institution was within ICRP recommendations.

Langford, J.; Thompson, G. (Princess Margaret Hospital for Children, Perth (Australia) Sir Charles Gairdner Hospital, Perth (Australia))

1990-03-01T23:59:59.000Z

135

Lightning Activities in the DOE-EPRI Turbine Verification Program  

DOE Green Energy (OSTI)

The US Department of Energy (DOE)-Electric Power Research Institute (EPRI) Turbine Verification Program (TVP) has played a vital role in improving the understanding of lightning protection for wind turbines. In response to concerns from host utilities, the TVP began a lightning protection project to study the impact of lightning activity at the 6.0-megawatt (MW) wind power facility in Ft. Davis, Texas. McNiff Light Industry (MLI) and Global Energy Concepts (GEC) established a broad observation and documentation effort to survey the lightning protection methodologies used and to evaluate the damage resulting from lightning activity at the turbines. The 6.05-MW wind power plant in Searsburg, Vermont, was inspected after a severe lightning storm caused damage to several turbines there. Zond, McNiff, and consultants from Lightning Technologies, Inc. conducted post-damage inspections at both sites to develop recommendations for improving lightning protection. Site operators implemented the recommended mitigation strategies, and the turbines were monitored to determine if the protection measures improved project operations. This paper summarizes the experience gained through TVP's lightning-related research, and provides a set of guidelines for wind turbine manufacturers, owners, and operators.

McCoy, T.; Rhoads, H.; Lisman, T. (Global Energy Concepts, LLC); McNiff, B. (McNiff Light Industry); Smith, B. (National Renewable Energy Laboratory)

2000-09-11T23:59:59.000Z

136

Engineering intracellular active transport systems as in vivo biomolecular tools.  

DOE Green Energy (OSTI)

Active transport systems provide essential functions in terms of cell physiology and metastasis. These systems, however, are also co-opted by invading viruses, enabling directed transport of the virus to and from the cell's nucleus (i.e., the site of virus replication). Based on this concept, fundamentally new approaches for interrogating and manipulating the inner workings of living cells may be achievable by co-opting Nature's active transport systems as an in vivo biomolecular tool. The overall goal of this project was to investigate the ability to engineer kinesin-based transport systems for in vivo applications, specifically the collection of effector proteins (e.g., transcriptional regulators) within single cells. In the first part of this project, a chimeric fusion protein consisting of kinesin and a single chain variable fragment (scFv) of an antibody was successfully produced through a recombinant expression system. The kinesin-scFv retained both catalytic and antigenic functionality, enabling selective capture and transport of target antigens. The incorporation of a rabbit IgG-specific scFv into the kinesin established a generalized system for functionalizing kinesin with a wide range of target-selective antibodies raised in rabbits. The second objective was to develop methods of isolating the intact microtubule network from live cells as a platform for evaluating kinesin-based transport within the cytoskeletal architecture of a cell. Successful isolation of intact microtubule networks from two distinct cell types was demonstrated using glutaraldehyde and methanol fixation methods. This work provides a platform for inferring the ability of kinesin-scFv to function in vivo, and may also serve as a three-dimensional scaffold for evaluating and exploiting kinesin-based transport for nanotechnological applications. Overall, the technology developed in this project represents a first-step in engineering active transport system for in vivo applications. Further development could potentially enable selective capture of intracellular antigens, targeted delivery of therapeutic agents, or disruption of the transport systems and consequently the infection and pathogenesis cycle of biothreat agents.

Bachand, George David; Carroll-Portillo, Amanda

2006-11-01T23:59:59.000Z

137

EERE-Supported International Activities in Latin America (Fact Sheet)  

NLE Websites -- All DOE Office Websites (Extended Search)

is supporting countries such as Chile as the National Energy Commission works to is supporting countries such as Chile as the National Energy Commission works to foster development of concentrating solar power (CSP) projects. EERE-Supported International Activities in Latin America The Office of Energy Efficiency and Renewable Energy (EERE) is involved in a variety of international initiatives, partnerships, and events that promote greater understanding and use of renewable energy (RE) and energy efficiency (EE) worldwide. In support of the Energy and Climate Partnership of the Americas (ECPA), EERE is working with several Latin American countries to advance EE and RE deployment for economic growth, energy security, poverty relief, and disaster recovery goals. EERE's projects in the region are listed below: Argentina - Binational

138

Waste management activities and carbon emissions in Africa  

Science Conference Proceedings (OSTI)

This paper summarizes research into waste management activities and carbon emissions from territories in sub-Saharan Africa with the main objective of quantifying emission reductions (ERs) that can be gained through viable improvements to waste management in Africa. It demonstrates that data on waste and carbon emissions is poor and generally inadequate for prediction models. The paper shows that the amount of waste produced and its composition are linked to national Gross Domestic Product (GDP). Waste production per person is around half that in developed countries with a mean around 230 kg/hd/yr. Sub-Saharan territories produce waste with a biogenic carbon content of around 56% (+/-25%), which is approximately 40% greater than developed countries. This waste is disposed in uncontrolled dumps that produce large amounts of methane gas. Greenhouse gas (GHG) emissions from waste will rise with increasing urbanization and can only be controlled through funding mechanisms from developed countries.

Couth, R. [University of KwaZulu-Natal, CRECHE, School of Civil Engineering, Survey and Construction, Durban 4041 (South Africa); Trois, C., E-mail: troisc@ukzn.ac.za [University of KwaZulu-Natal, CRECHE, School of Civil Engineering, Survey and Construction, Durban 4041 (South Africa)

2011-01-15T23:59:59.000Z

139

Active security  

Science Conference Proceedings (OSTI)

In this paper we introduce active security, a new methodology which introduces programmatic control within a novel feedback loop into the defense infrastructure. Active security implements a unified programming environment which provides interfaces ... Keywords: central management, digital forensics, network security

Ryan Hand, Michael Ton, Eric Keller

2013-11-01T23:59:59.000Z

140

OE's Smart Grid Activities in the Distribution System  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1/2013 1 1/2013 1 National Academy of Engineering - BMED December 2008 www.oe.energy.gov U.S. Department of Energy - 1000 Independence Ave., SW Washington, DC 20585 OE's Smart Grid Activities in the Distribution system September 2012 Patricia Hoffman Assistant Secretary December 2008 Mission  Drive Grid Modernization and Resiliency in the Energy Infrastructure  The formation of the Grid Technology Team is a recognition by DOE that we need to bring more resources to bear on grid modernization, coordinating effort from the Science programs, ARPA-E, and the other applied programs 2 December 2008 Desired Outcomes from this Workshop  Better shared understanding of the technology needs of the Distribution system  Identification of gaps in current research

Note: This page contains sample records for the topic "activities in cluding" 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
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141

Lignite slime as activator in production of oxidized asphalts  

Science Conference Proceedings (OSTI)

The possibility of activation of the oxidation of straight-run resids to asphalts by the addition of lignite slimes obtained in the liquefaction of coals of the Kansk-Achinsk basin was studied on the basis of a hypothesis formulated with due regard for the principles of physicochemical mechanics of petroleum disperse systems. A reduction of the air bubble size in the oxidizing vessel should lead to an increase in the total surface of oxidation and hence to a shortening of the time required for oxidation of the feed. A straight-run vacuum resid from mixed West Siberian and Ukhta crudes was used. The resid was oxidized with and without the addition of slime.

Gureev, A.A.; Gorlov, E.G.; Leont'eva, O.B.; Zotova, O.V.

1988-03-01T23:59:59.000Z

142

A Look at Principal Building Activities in Commercial Buildings  

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

Sales Lodging Religious Worship Public Assembly Public Order and Safety Warehouse and Storage Vacant Other Summary Comparison Table (All Activities) More information on the:...

143

Commercial Activity in the Ivory Tower: Propensity and Productivity ¤ 1  

E-Print Network (OSTI)

This paper examines several explanations for the recent growth in university licensing. We focus on the role of inputs, including intermediate inputs, in the process, and we examine the extent to which the dramatic increase in this so-called commercial activity is driven by faculty and administrators becoming more entrepreneurial. We model technology transfer as a three-stage production process involving invention disclosure, patent application and license execution. Total factor productivity (TFP) of inputs in each stage is calculated using AUTM survey data for 65 U.S. universities for 1994-1997. We then use survey evidence from businesses who licensed-in university inventions over the period to examine the sources of TFP growth in each stage. Our results suggest that the increase in licensing is due primarily to an increased willingness of faculty and administrators to engage in licensing and increased business reliance on external R&D rather than a shift in faculty research. Preliminary: Comments welcome – do not cite without permission

Jerry G. Thursby; Marie C. Thursby

2000-01-01T23:59:59.000Z

144

The Molecular Mechanism of Stretch Activation in Insect Muscle | Advanced  

NLE Websites -- All DOE Office Websites (Extended Search)

A Newly Discovered DNA Repair Mechanism A Newly Discovered DNA Repair Mechanism Assessing the Risk of Arsenic Ingestion An Electronic Dance of Spins and Orbits How a Virus Prepares to Infect Cells Magnetic Switching under Pressure Science Highlights Archives: 2013 | 2012 | 2011 | 2010 2009 | 2008 | 2007 | 2006 2005 | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed The Molecular Mechanism of Stretch Activation in Insect Muscle DECEMBER 21, 2010 Bookmark and Share Main image: X-ray pattern from contracting flight muscle; top: match-mismatch of crossbridge origins with actin target zones; bottom: thick filament twisting bring myosin crossbridges closer to actin binding sites ("target zones"). Pink = target zones; red = myosin heads. Intruder at bottom: Lethocerus indicus.

145

Activities to Secure Control Systems in the Energy Sector  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

sector sector NSTB November 2008 Hank Kenchington - Program Manager Office of Electricity of Delivery and Energy Reliability U.S. Department of Energy Activities to Secure Control Systems in the Energy Sector * 2,000,000 Miles of Oil Pipelines * 1,300,000 Miles of Gas Pipelines * 2,000 Petroleum Terminals * ~1,000,000 Wells * Extensive Ports, Refineries, Transportation, and LNG Facilities * 160,000 Miles of Electrical Transmission lines * ~17,000 Generators; 985,000 Megawatts (net summer capacity) * Over 3,100 Electric Utilities, with 131 million customers Refinery Locations, Crude and Product Pipelines Source: Energy Information Administration, Office of Oil & Gas LNG Import Facilities (Reactivation underway) Legend Interstate Pipelines Intrastate and Other Pipelines

146

Decreased dopamine activity predicts relapse in methamphetamine abusers  

Science Conference Proceedings (OSTI)

Studies in methamphetamine (METH) abusers showed that the decreases in brain dopamine (DA) function might recover with protracted detoxification. However, the extent to which striatal DA function in METH predicts recovery has not been evaluated. Here we assessed whether striatal DA activity in METH abusers is associated with clinical outcomes. Brain DA D2 receptor (D2R) availability was measured with positron emission tomography and [{sup 11}C]raclopride in 16 METH abusers, both after placebo and after challenge with 60 mg oral methylphenidate (MPH) (to measure DA release) to assess whether it predicted clinical outcomes. For this purpose, METH abusers were tested within 6 months of last METH use and then followed up for 9 months of abstinence. In parallel, 15 healthy controls were tested. METH abusers had lower D2R availability in caudate than in controls. Both METH abusers and controls showed decreased striatal D2R availability after MPH and these decreases were smaller in METH than in controls in left putamen. The six METH abusers who relapsed during the follow-up period had lower D2R availability in dorsal striatum than in controls, and had no D2R changes after MPH challenge. The 10 METH abusers who completed detoxification did not differ from controls neither in striatal D2R availability nor in MPH-induced striatal DA changes. These results provide preliminary evidence that low striatal DA function in METH abusers is associated with a greater likelihood of relapse during treatment. Detection of the extent of DA dysfunction may be helpful in predicting therapeutic outcomes.

Wang G. J.; Wang, G.-J.; Smith, L.; Volkow, N.D.; Telang, F.; Logan, J.; Tomasi, D.; Wong, C.T.; Hoffman, W.; Jayne, M.; Alia-Klein, N.; Thanos, P.; Fowler, J.S.

2011-01-20T23:59:59.000Z

147

Induction of growth factor RNA expression in human malignant melanoma: markers of transformation  

E-Print Network (OSTI)

Alteration in the expression of growth factors is widely accepted as being one of several critical defects in the generation of the malignant cell. In the present study, 19 human metastatic melanoma cell lines were compared to 14 normal human foreskin melanocyte cell lines for the production of RNA transcripts specific for 11 different growth factors. Using the extremely sensitive technique of polymerase chain reaction to amplify growth factor-specific complementary DNAs, we analyzed the following: transforming growth factor (TGF) types a, fi,, ti¡.and /i.,,acidic (a) fibroblast growth factor (FGF), basic (b) FGF, FGF-5, keratinocyte growth factor (KGF), HST, and platelet-derived growth factor (PDGF) types A and B. There were clear distinctions among the patterns of growth factor RNA expression by normal melanocytes and malignant melanoma cells. The prototypic melanocyte pattern of expression in cluded TGF0!, TGF/Sj, and KGF. A subset of melanocyte cell lines also

Anthony P. Albino; Brigid M. Davis; David M. Nanus; Contact The Aacr Publications; Anthony P. Albino; Brigid M. Davis; David M. Nanus

1991-01-01T23:59:59.000Z

148

Potential of Malaysian activated carbon in dual purpose adsorption system  

Science Conference Proceedings (OSTI)

The adsorption capability of some locally produced activated charcoal (coconut shell) samples with methanol were taken under laboratory conditions. An experimental test rig was set up; data obtained from the experiments were fitted to Dubinin-Radushkevitch ... Keywords: Malaysian activated carbon, adsorption properties, coefficient of performance (COP), dual purpose system

M. A. Alghoul; M. Y. Sulaiman; K. Sopian; M. Yahya; Azami Zaharim

2008-11-01T23:59:59.000Z

149

Status Differences in the Cognitive Activation of Social Networks  

Science Conference Proceedings (OSTI)

We develop a dynamic cognitive model of network activation and show that people at different status levels spontaneously activate, or call to mind, different subsections of their networks when faced with job threat. Using a multimethod approach (General ... Keywords: experimental designs, labor markets, laboratory research, organization and management theory, organizational behavior, psychological processes, social networks, status

Edward Bishop Smith; Tanya Menon; Leigh Thompson

2012-01-01T23:59:59.000Z

150

Segmenting sensor data for activity monitoring in smart environments  

Science Conference Proceedings (OSTI)

Within a smart environment, sensors have the ability to perceive changes of the environment itself and can therefore be used to infer high-level information such as activity behaviours. Sensor events collected over a period of time may contain several ... Keywords: Activity detection, Evidential modelling, Smart environments, Time series sensor segmentation

Xin Hong; Chris D. Nugent

2013-03-01T23:59:59.000Z

151

Spin orientation of supermassive black holes in active galaxies  

E-Print Network (OSTI)

Accretion of gas onto a central supermassive black hole is generally accepted to be the source of the emitted energy in active galactic nuclei.The broad emission lines we observe in their optical spectra are probably formed in the wind of an accretion disk at distances of light days to light years from the central black hole. The variable fraction of the emission lines originates at typical distances of only 1 to 50 light days from the central supermassive black hole. We derived a central black hole mass of M_orbital = 1.8 +/-0.4 x 10^7 M_sun in the Seyfert galaxy Mrk110 assuming the broad emission lines are generated in gas clouds orbiting within an accretion disk. This figure depends on the inclination angle of the accretion disk. Here we report on the detection of gravitational redshifted emission in the variable fraction of the broad emission lines. We derive a central black hole mass of M_grav = 14.0 +/-3.0 x 10^7 M_sun. These measurements are independent on the orientation of the accretion disk. The comparison of both black hole mass estimates allows to determine the projection of the central accretion disk angle i to 21 +/-5 deg. in Mrk110 and therefore the orientation of the spin axis of the central black hole.

W. Kollatschny

2003-11-12T23:59:59.000Z

152

Sensors in the wild: exploring electrodermal activity in child-robot interaction  

Science Conference Proceedings (OSTI)

Recent advances in biosensor technology enabled the appearance of commercial wireless sensors that can measure electrodermal activity (EDA) in user's everyday settings. In this paper, we investigate the potential benefits of measuring EDA to better understand ... Keywords: affect recognition, children, electrodermal activity, social robots

Iolanda Leite; Rui Henriques; Carlos Martinho; Ana Paiva

2013-03-01T23:59:59.000Z

153

Low-Level Nuclear Activity in Nearby Spiral Galaxies  

E-Print Network (OSTI)

We are conducting a search for supermassive black holes (SMBHs) with masses below 10^7 M_sun by looking for signs of extremely low-level nuclear activity in nearby galaxies that are not known to be AGNs. Our survey has the following characteristics: (a) X-ray selection using the Chandra X-ray Observatory, since x-rays are a ubiquitous feature of AGNs; (b) Emphasis on late-type spiral and dwarf galaxies, as the galaxies most likely to have low-mass SMBHs; (c) Use of multiwavelength data to verify the source is an AGN; and (d) Use of the highest angular resolution available for observations in x-rays and other bands, to separate nuclear from off-nuclear sources and to minimize contamination by host galaxy light. Here we show the feasibility of this technique to find AGNs by applying it to six nearby, face-on spiral galaxies (NGC 3169, NGC 3184, NGC 4102, NGC 4647, NGC 4713, NGC 5457) for which data already exist in the Chandra archive. All six show nuclear x-ray sources. The data as they exist at present are ambiguous regarding the nature of the nuclear x-ray sources in NGC 4713 and NGC 4647. We conclude, in accord with previous studies, that NGC 3169 and NGC 4102 are almost certainly AGNs. Most interestingly, a strong argument can be made that NGC 3184 and NGC 5457, both of type Scd, host AGNs.

Himel Ghosh; Smita Mathur; Fabrizio Fiore; Laura Ferrarese

2008-01-28T23:59:59.000Z

154

Dietary resveratrol administration increases MnSOD expression and activity in mouse brain  

E-Print Network (OSTI)

SOD protein level (140%) and activity (75%). The increase in MnSOD was not due to a substantial proliferationDietary resveratrol administration increases MnSOD expression and activity in mouse brain Ellen L oxidative stress. In vitro studies have shown an increase in antioxidant enzyme activities following

Stuart, Jeffrey A.

155

A Tracer Study with Oxygen-18 in Photosynthesis by Activation Analysis  

E-Print Network (OSTI)

r e e n algae. t e r m photosynthesis products containing 0WITH OXYGEN - I8 IN PHOTOSYNTHESIS BY ACTIVATION ANALYSISWITH OXYGEN-18 IN PHOTOSYNTHESIS BY ACTIVATION ANALYSIS I n

Fogelstrom-Fineman, Ingrid; Holm-Hansen, Osmund; Tolbert, Bert M.; Calvin, Melvin

1957-01-01T23:59:59.000Z

156

U-225: Citrix Access Gateway Plug-in for Windows nsepacom ActiveX...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

5: Citrix Access Gateway Plug-in for Windows nsepacom ActiveX Control Vulnerabilities U-225: Citrix Access Gateway Plug-in for Windows nsepacom ActiveX Control Vulnerabilities...

157

B-spline active rays segmentation of microcalcifications in mammography  

Science Conference Proceedings (OSTI)

Accurate segmentation of microcalcifications in mammography is crucial for the quantification of morphologic properties by features incorporated in computer-aided diagnosis schemes. A novel segmentation method is proposed implementing active rays (polar-transformed active contours) on B-spline wavelet representation to identify microcalcification contour point estimates in a coarse-to-fine strategy at two levels of analysis. An iterative region growing method is used to delineate the final microcalcification contour curve, with pixel aggregation constrained by the microcalcification contour point estimates. A radial gradient-based method was also implemented for comparative purposes. The methods were tested on a dataset consisting of 149 mainly pleomorphic microcalcification clusters originating from 130 mammograms of the DDSM database. Segmentation accuracy of both methods was evaluated by three radiologists, based on a five-point rating scale. The radiologists' average accuracy ratings were 3.96{+-}0.77, 3.97{+-}0.80, and 3.83{+-}0.89 for the proposed method, and 2.91{+-}0.86, 2.10{+-}0.94, and 2.56{+-}0.76 for the radial gradient-based method, respectively, while the differences in accuracy ratings between the two segmentation methods were statistically significant (Wilcoxon signed-ranks test, p<0.05). The effect of the two segmentation methods in the classification of benign from malignant microcalcification clusters was also investigated. A least square minimum distance classifier was employed based on cluster features reflecting three morphological properties of individual microcalcifications (area, length, and relative contrast). Classification performance was evaluated by means of the area under ROC curve (A{sub z}). The area and length morphologic features demonstrated a statistically significant (Mann-Whitney U-test, p<0.05) higher patient-based classification performance when extracted from microcalcifications segmented by the proposed method (0.82{+-}0.06 and 0.86{+-}0.05, respectively), as compared to segmentation by the radial gradient-based method (0.71{+-}0.08 and 0.75{+-}0.08). The proposed method demonstrates improved segmentation accuracy, fulfilling human visual criteria, and enhances the ability of morphologic features to characterize microcalcification clusters.

Arikidis, Nikolaos S.; Skiadopoulos, Spyros; Karahaliou, Anna; Likaki, Eleni; Panayiotakis, George; Costaridou, Lena [Department of Medical Physics, School of Medicine, University of Patras, 265 00 Patras (Greece); Department of Radiology, School of Medicine, University of Patras, 265 00 Patras (Greece); Department of Medical Physics, School of Medicine, University of Patras, 265 00 Patras (Greece)

2008-11-15T23:59:59.000Z

158

Two decades of hydrocarbon exploration activity in Indonesia  

SciTech Connect

During the past two decades, hydrocarbon exploration activity within Indonesia has been based on the Indonesian Energy Policy, aims of which include intensifying and expanding hydrocarbon exploration programs. Expansion into the offshore regions of the nation has resulted in the discovery of petroliferous basins. The first offshore oil production came on stream in 1971. Since then, significant achievements have been made in developing these resources. Intensified onshore exploration has resulted in additional oil fields being discovered in these more mature areas. Among the significant gas fields discovered during the past 20 years, Arun and Badak both supply major LNG projects. Oil fields have been found in the onshore areas of Sumatra, Kalimantan, Java, and Irian Jaya, and in the offshore areas around West Java, Madura, Natuna, and East Kalimantan. The exploration drilling success during this time has been approximately 32%. In addition, the ratio of oil field development to these discoveries is about 54%. For technical and economic reasons, not all discoveries can be developed into oil fields. Recently, Pertamina's Research and Development Division organized the study of data contributed by Pertamina exploration, foreign contractors, and science institutes. This study reveals that 60 basins are spread throughout the onshore and offshore areas of the nation. Using PAUS (plan and analysis of uncertainty situation), a Monte Carolo simulation program, the hydrocarbon potential of each basin has been estimated. These estimates will be continually revised as more data are made available to the study, as the geology of Indonesia is better understood in terms of plate tectonic theory, and as computing techniques improve.

Suardy, A.; Taruno, J.; Simbolon, P.H.; Simbolon, B.

1986-07-01T23:59:59.000Z

159

Comment on "Arsenic Mobility and Groundwater Extraction in  

E-Print Network (OSTI)

solids accompanying the influx of fresh, labile car- bon-laden recharge water. They further con- cluded and hydro- gen isotope compositions of shallow groundwaters between 1979 and 1999. This indicates

Basu, Asish R.

160

Equatorial Wave Activity Derived from Fluctuations in Observed Convection  

Science Conference Proceedings (OSTI)

The spectrum of equatorial wave activity propagating vertically into the stratosphere is calculated from high-resolution imagery of the global convective pattern. Synoptic Global Cloud Imagery (GCI), constructed from six satellites simultaneously ...

John W. Bergman; Murry L. Salby

1994-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "activities in cluding" 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 and regional aspects of tropical cyclone activity in the CMIP5 models  

Science Conference Proceedings (OSTI)

Tropical cyclone (TC) activity is analyzed in 14 Coupled Model Intercomparison Project phase 5 (CMIP5) models. The global TC activity in the historical runs is compared with observations. The simulation of TC activity in the CMIP5 models is not as ...

Suzana J. Camargo

162

Calcium alloy as active material in secondary electrochemical cell  

DOE Patents (OSTI)

Calcium alloys such as calcium-aluminum and calcium-silicon, are employed as active material within a rechargeable negative electrode of an electrochemical cell. Such cells can use a molten salt electrolyte including calcium ions and a positive electrode having sulfur, sulfides, or oxides as active material. The calcium alloy is selected to prevent formation of molten calcium alloys resulting from reaction with the selected molten electrolytic salt at the cell operating temperatures.

Roche, Michael F. (Lombard, IL); Preto, Sandra K. (Stickney, IL); Martin, Allan E. (Woodridge, IL)

1976-01-01T23:59:59.000Z

163

ABRUPT LONGITUDINAL MAGNETIC FIELD CHANGES IN FLARING ACTIVE REGIONS  

Science Conference Proceedings (OSTI)

We characterize the changes in the longitudinal photospheric magnetic field during 38 X-class and 39 M-class flares within 65{sup 0} of disk center using 1 minute GONG magnetograms. In all 77 cases, we identify at least one site in the flaring active region where clear, permanent, stepwise field changes occurred. The median duration of the field changes was about 15 minutes and was approximately equal for X-class and for M-class flares. The absolute values of the field changes ranged from the detection limit of {approx}10 G to as high as {approx}450 G in two exceptional cases. The median value was 69 G. Field changes were significantly stronger for X-class than for M-class flares and for limb flares than for disk-center flares. Longitudinal field changes less than 100 G tended to decrease longitudinal field strengths, both close to disk center and close to the limb, while field changes greater than 100 G showed no such pattern. Likewise, longitudinal flux strengths tended to decrease during flares. Flux changes, particularly net flux changes near disk center, correlated better than local field changes with GOES peak X-ray flux. The strongest longitudinal field and flux changes occurred in flares observed close to the limb. We estimate the change of Lorentz force associated with each flare and find that this is large enough in some cases to power seismic waves. We find that longitudinal field decreases would likely outnumber increases at all parts of the solar disk within 65{sup 0} of disk center, as in our observations, if photospheric field tilts increase during flares as predicted by Hudson et al.

Petrie, G. J. D. [National Solar Observatory, 950 N. Cherry Avenue, Tucson, AZ 85719 (United States); Sudol, J. J. [West Chester University, West Chester, PA 19383 (United States)

2010-12-01T23:59:59.000Z

164

Modeling spatial variability of 137Cs surface activity in a mountain zone  

Science Conference Proceedings (OSTI)

Based on 137Cs surface activity field studies performed on a workshop zone, we succeeded in identifying the main criterion permitting surface activity modeling to be extended. Geomorphometric data derived from the Digital Elevation Model (slope, ...

J. M. Métivier; L. Pourcelot

2002-01-01T23:59:59.000Z

165

Spatial Variations in Major U.S. Hurricane Activity: Statistics and a Physical Mechanism  

Science Conference Proceedings (OSTI)

The authors provide a statistical and physical basis for understanding regional variations in major hurricane activity along the U.S. coastline on long timescales. Current statistical models of hurricane activity are focused on the frequency of ...

James B. Elsner; Kam-biu Liu; Bethany Kocher

2000-07-01T23:59:59.000Z

166

Modeling Seasonal Tropical Cyclone Activity in the Fiji Region as a Binary Classification Problem  

Science Conference Proceedings (OSTI)

This study presents a binary classification model for the prediction of tropical cyclone (TC) activity in the Fiji, Samoa, and Tonga regions (the FST region) using the accumulated cyclone energy (ACE) as a proxy of TC activity. A probit regression ...

Savin S. Chand; Kevin J. E. Walsh

2012-07-01T23:59:59.000Z

167

OH megamasers, starburst and AGN activity in Markarian 231  

E-Print Network (OSTI)

We present MERLIN observations of OH maser and radio continuum emission from the Ultra Luminous IR Galaxy Markarian 231. The 1665- and 1667-MHz transitions have a combined velocity extent of 720 km/s and show a similar position-velocity structure including a gradient of 1.7 km/s/pc from NW to SE along the 420-pc major axis, steeper in the inner few tens of pc. The maser distribution is modelled as a torus rotating about an axis inclined at ~45deg. We estimate the enclosed mass density to be 320(90) Msun in a flattened distribution, including a central unresolved mass of /=1E+05 K, giving a maser gain of in the range 0.25-4 pc with a covering factor close to unity. There are no very bright compact masers, in contrast to galaxies such as the Seyfert 2 Markarian 273 where the masing torus is viewed nearer edge-on. The comparatively modest maser amplification seen from Markarian 231 is consistent with its classification as a Seyfert 1. Most of the radio continuum emission on 50-500 pc scales is probably of starburst origin but the compact peak is 0.4 per cent polarized by a magnetic field running north-south, similar to the jet direction on these scales. There is no close correlation between maser and continuum intensity. Comparisons with other data show that the jet changes direction close the nucleus and suggest that the sub-kpc disc hosting the masers and starburst activity is severely warped.

A. M. S. Richards; J. H. Knapen; J. A. Yates; R. J. Cohen; J. L. Collett; M. M. Wright; M. D. Gray; D. Field

2005-09-13T23:59:59.000Z

168

Spectrum of geomagnetic activity in the period range 560 days: possible lunar inuences  

E-Print Network (OSTI)

Spectrum of geomagnetic activity in the period range 5±60 days: possible lunar in¯uences J. StrÏ es (if any) is not mediated by geomag- netic activity. Key words. Geomagnetism and paleomagnetism á Time Introduction Geomagnetic activity displays various regular and irregular variations. These have been

Paris-Sud XI, Université de

169

Objectively measured physical activity in pregnancy: a study in obese and overwieght women.  

E-Print Network (OSTI)

:543-548. 25. Borodulin KM, Evenson KR, Wen F, Herring AH, Benson AM: Physical Activity Patterns during Pregnancy. Medicine and Science in Sports and Exercise 2008, 40:1901-1908. 26. Lof M, Forsum E: Activity pattern and energy expenditure due to physical...

McParlin, Catherine; Robson, Stephen C; Tennant, Peter W G; Besson, Herve; Rankin, Judith; Adamson, Ashley J; Pearce, Mark S; Bell, Ruth

2010-11-29T23:59:59.000Z

170

Activities of the Department of Energy in education. Annual status report, FY 1978  

SciTech Connect

The Department of Energy's responsibilities in implementing President Carter's National Energy Plan include identifying the appropriate role of educational activities and institutions in that work. This study describes educational activities as they existed one year after the creation of the Department of Energy. Educational activities of educational institutions are included in the study, with the deliberate exception of the very substantial research activity conducted by universities. This report is intended to assist DOE program managers in the utilization of educational process in their operations and to provide guidance and informaion to the public about the Department's educational activities. For additional historical information, please consult DOE, IR-0008. (RWR)

1979-01-01T23:59:59.000Z

171

Radiostrontium activity concentrations in milk in the Republic of Croatia for 1961 - 2001 and dose assessment  

E-Print Network (OSTI)

Results of systematic measurements of Sr-90 activity concentrations in milk for the period 1961 - 2001 are summarized. An exponential decline of radioactivity followed the moratorium on atmospheric nuclear testing. The highest activity of Sr-90 deposited by fallout, being 1060 Bq/m2, was recorded in 1963, while the peak Sr-90 activity concentration in milk, 1.42 +/-0.17 Bq/L, was recorded in 1964. The values in year 2001 for fallout deposition and milk were 7.7 Bq/m2 and 0.07 +/- 0.03 Bq/L, respectively. The reactor accident at Chernobyl caused higher Sr-90 levels only in 1986. Sr-90 fallout activity affects milk activity, the coefficient of correlation between Sr-90 fallout activity and Sr-90 activity concentrations in milk being 0.80. The transfer coefficient from fallout deposition to milk was estimated to be 2.5 mBqy/L per Bq/m2. The dose incurred by milk consumption was estimated for the Croatian population, the annual collective effective dose in 2001 being approximately 2.0 man-Sv.

Franic, Z; Marovic, G

2004-01-01T23:59:59.000Z

172

U.S. Department of Energy -- Advanced Vehicle Testing Activity: Plug-in Hybrid Electric Vehicle Testing and Demonstration Activities  

DOE Green Energy (OSTI)

The U.S. Department of Energy’s (DOE) Advanced Vehicle Testing Activity (AVTA) tests plug-in hybrid electric vehicles (PHEV) in closed track, dynamometer and onroad testing environments. The onroad testing includes the use of dedicated drivers on repeated urban and highway driving cycles that range from 10 to 200 miles, with recharging between each loop. Fleet demonstrations with onboard data collectors are also ongoing with PHEVs operating in several dozen states and Canadian Provinces, during which trips- and miles-per-charge, charging demand and energy profiles, and miles-per-gallon and miles-per-kilowatt-hour fuel use results are all documented, allowing an understanding of fuel use when vehicles are operated in charge depleting, charge sustaining, and mixed charge modes. The intent of the PHEV testing includes documenting the petroleum reduction potential of the PHEV concept, the infrastructure requirements, and operator recharging influences and profiles. As of May 2008, the AVTA has conducted track and dynamometer testing on six PHEV conversion models and fleet testing on 70 PHEVs representing nine PHEV conversion models. A total of 150 PHEVs will be in fleet testing by the end of 2008, all with onboard data loggers. The onroad testing to date has demonstrated 100+ miles per gallon results in mostly urban applications for approximately the first 40 miles of PHEV operations. The primary goal of the AVTA is to provide advanced technology vehicle performance benchmark data for technology modelers, research and development programs, and technology goal setters. The AVTA testing results also assist fleet managers in making informed vehicle purchase, deployment and operating decisions. The AVTA is part of DOE’s Vehicle Technologies Program. These AVTA testing activities are conducted by the Idaho National Laboratory and Electric Transportation Engineering Corporation, with Argonne National Laboratory providing dynamometer testing support. The proposed paper and presentation will discuss PHEV testing activities and results. INL/CON-08-14333

James E. Francfort; Donald Karner; John G. Smart

2009-05-01T23:59:59.000Z

173

In-situ Tracking of Slip Activation in Bulk Polycrystalline Zirconium  

Science Conference Proceedings (OSTI)

Presentation Title, In-situ Tracking of Slip Activation in Bulk Polycrystalline Zirconium. Author(s), J. Lind, S. F. Li, C. M. Hefferan, R. Pokharel, A. D. Rollett, ...

174

Activity and Diet of Bats in Apple Orchards of Southern Michigan.  

E-Print Network (OSTI)

??I studied activity and diet of bats in apple orchards in southern Michigan. There was no difference between organic and conventional orchards in number and… (more)

Smith, Brenna Lynn

2012-01-01T23:59:59.000Z

175

Peroxisome Proliferator-activated Receptor / Regulates Very Low Density Lipoprotein Production and Catabolism in  

E-Print Network (OSTI)

Peroxisome Proliferator-activated Receptor / Regulates Very Low Density Lipoprotein Production, Pennsylvania 16802 The results of recent studies using selective agonists for peroxisome proliferator-activated as well as lowered lipoprotein lipase activity in serum compared with wild-type controls. The latter

Omiecinski, Curtis

176

Controlling the amount of physical activity in a specific exertion interface  

Science Conference Proceedings (OSTI)

We present the empirical validation of a system that controls the amount of physical activity that children do while playing in a specific exertion interface called the Interactive Slide. The control of the amount of physical activity is done through ... Keywords: children, exergame, exertion interface, health, mixed reality, physical activity, sedentarism, user control

Pascal Landry; Narcis Pares

2012-05-01T23:59:59.000Z

177

Melatonin Alters Age-Related Changes in Transcription Factors and Kinase Activation  

E-Print Network (OSTI)

not to alter the extent of NF-kB or AP-1 activation [14]. X-in the spleen, dietary a NF-kB activity (densitometic units)YC YM OC OM b NF-kB activity (densitometic units) Results

Bondy, Stephen Bondy C

2010-01-01T23:59:59.000Z

178

Short-term relationship of total electron content with geomagnetic activity in equatorial regions  

E-Print Network (OSTI)

Short-term relationship of total electron content with geomagnetic activity in equatorial regions X equatorial ionosphere and geomagnetic activity is examined. Hourly averages of the total electron content for equatorial geomagnetic activity, at three local times (0700­0800, 1200­1300, and 1600­1700 LT) from March

Qiyu, Sun

179

WATER ACTIVITY DATA ASSESSMENT TO BE USED IN HANFORD WASTE SOLUBILITY CALCULATIONS  

SciTech Connect

The purpose of this report is to present and assess water activity versus ionic strength for six solutes:sodium nitrate, sodium nitrite, sodium chloride, sodium carbonate, sodium sulfate, and potassium nitrate. Water activity is given versus molality (e.g., ionic strength) and temperature. Water activity is used to estimate Hanford crystal hydrate solubility present in the waste.

DISSELKAMP RS

2011-01-06T23:59:59.000Z

180

Energy and Development: Activities in Sub-Saharan Africa  

E-Print Network (OSTI)

reductionHealth Solar Water Heater Women Renewable EnergyProject RemarksSubstantiation Case Study findings systematic description of an energy intervention and its consequences common approach #12;Activity Solar Hot Water Output Hot Water Job Creation Energy Services Utilization of hot water for showering Outcome Wood

Note: This page contains sample records for the topic "activities in cluding" 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
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181

Comparison of Impurities in Charcoal Sorbents Found by Neutron Activation Analysis  

Science Conference Proceedings (OSTI)

Abstract: Neutron activation of gas samples in a reactor often requires a medium to retain sufficient amounts of the gas for analysis. Charcoal is commonly used to adsorb gas and hold it for activation; however, the amount of activated sodium in the charcoal after irradiation swamps most signals of interest. Neutron activation analysis (NAA) was performed on several commonly available charcoal samples in an effort to determine the activation background. The results for several elements, including the dominant sodium element, are reported. It was found that ECN charcoal had the lowest elemental background, containing sodium at 2.65 ± 0.05 ppm, as well as trace levels of copper and tungsten.

Doll, Charles G.; Finn, Erin C.; Cantaloub, Michael G.; Greenwood, Lawrence R.; Kephart, Jeremy; Kephart, Rosara F.

2013-01-01T23:59:59.000Z

182

Locating an active fault zone in Coso geothermal field by analyzing seismic  

Open Energy Info (EERE)

Locating an active fault zone in Coso geothermal field by analyzing seismic Locating an active fault zone in Coso geothermal field by analyzing seismic guided waves from microearthquake data Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Locating an active fault zone in Coso geothermal field by analyzing seismic guided waves from microearthquake data Details Activities (1) Areas (1) Regions (0) Abstract: Active fault systems usually provide high-permeability channels for hydrothermal outflow in geothermal fields. Locating such fault systems is of a vital importance to plan geothermal production and injection drilling, since an active fault zone often acts as a fracture-extensive low-velocity wave guide to seismic waves. We have located an active fault zone in the Coso geothermal field, California, by identifying and analyzing

183

Active Noise Control of a Centrifugal Fan Mounted in a Mock Laptop Enclosure.  

E-Print Network (OSTI)

??Noise from information technology (IT) equipment is a significant problem in today's modern society. Active Noise Control (ANC) has shown promise in reducing the effect… (more)

Esplin, John J.

2012-01-01T23:59:59.000Z

184

Observed Changes in Cyclone Activity in Canada and Their Relationships to Major Circulation Regimes  

Science Conference Proceedings (OSTI)

This study assessed the climate and trend of cyclone activity in Canada using mainly the occurrence frequency of cyclone deepening events and deepening rates, which were derived from hourly mean sea level pressure data observed at 83 Canadian ...

Xiaolan L. Wang; H. Wan; Val R. Swail

2006-03-01T23:59:59.000Z

185

Activation and radiation damage in the environment of hadron accelerators  

E-Print Network (OSTI)

A component which suffers radiation damage usually also becomes radioactive, since the source of activation and radiation damage is the interaction of the material with particles from an accelerator or with reaction products. However, the underlying mechanisms of the two phenomena are different. These mechanisms are described here. Activation and radiation damage can have far-reaching consequences. Components such as targets, collimators, and beam dumps are the first candidates for failure as a result of radiation damage. This means that they have to be replaced or repaired. This takes time, during which personnel accumulate dose. If the dose to personnel at work would exceed permitted limits, remote handling becomes necessary. The remaining material has to be disposed of as radioactive waste, for which an elaborate procedure acceptable to the authorities is required. One of the requirements of the authorities is a complete nuclide inventory. The methods used for calculation of such inventories are presented,...

Kiselev, Daniela

2013-01-01T23:59:59.000Z

186

Electrical Energy Storage Activities in the United States  

Science Conference Proceedings (OSTI)

Spurred by increased public and private sector investment as well as policy initiatives, electrical energy storage project activities are on the upswing worldwide. The growing number of operating and planned initiatives demands that they be rigorously documented and evaluated to promote information sharing and collective learning. This report provides descriptive case studies on ten U.S.-based energy storage projects offering insight into their background, status, successes, shortcomings, and lessons lea...

2010-12-01T23:59:59.000Z

187

Catalyst activator  

DOE Patents (OSTI)

A catalyst activator particularly adapted for use in the activation of metal complexes of metals of Group 3-10 for polymerization of ethylenically unsaturated polymerizable monomers, especially olefins, comprising two Group 13 metal or metalloid atoms and a ligand structure including at least one bridging group connecting ligands on the two Group 13 metal or metalloid atoms.

McAdon, Mark H. (Midland, MI); Nickias, Peter N. (Midland, MI); Marks, Tobin J. (Evanston, IL); Schwartz, David J. (Lake Jackson, TX)

2001-01-01T23:59:59.000Z

188

THE LIMIT OF MAGNETIC-SHEAR ENERGY IN SOLAR ACTIVE REGIONS  

SciTech Connect

It has been found previously, by measuring from active-region magnetograms a proxy of the free energy in the active region's magnetic field, (1) that there is a sharp upper limit to the free energy the field can hold that increases with the amount of magnetic field in the active region, the active region's magnetic flux content, and (2) that most active regions are near this limit when their field explodes in a coronal mass ejection/flare eruption. That is, explosive active regions are concentrated in a main-sequence path bordering the free-energy-limit line in (flux content, free-energy proxy) phase space. Here, we present evidence that specifies the underlying magnetic condition that gives rise to the free-energy limit and the accompanying main sequence of explosive active regions. Using a suitable free-energy proxy measured from vector magnetograms of 44 active regions, we find evidence that (1) in active regions at and near their free-energy limit, the ratio of magnetic-shear free energy to the non-free magnetic energy the potential field would have is of the order of one in the core field, the field rooted along the neutral line, and (2) this ratio is progressively less in active regions progressively farther below their free-energy limit. Evidently, most active regions in which this core-field energy ratio is much less than one cannot be triggered to explode; as this ratio approaches one, most active regions become capable of exploding; and when this ratio is one, most active regions are compelled to explode.

Moore, Ronald L.; Falconer, David A.; Sterling, Alphonse C., E-mail: ron.moore@nasa.gov [Heliophysics and Planetary Science Office, ZP13, Marshall Space Flight Center, Huntsville, AL 35812 (United States)

2012-05-01T23:59:59.000Z

189

Summary of Prinicpal Building Activities in Commercial Buildings  

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

Sumary Comparison Table Sumary Comparison Table Return to: A Look at CBECS Building Activities SUMMARY COMPARISON TABLE Number of Buildings (thousand) Total Floorspace (million square feet) Average Square Feet per Building (thousand) Total Workers (thousand) Average Square Feet per Worker All Commercial Buildings 4,579 58,772 12.8 76,767 766 Building Activity Retail and Service 1,289 12,728 9.9 13,464 945 -- Retail 704 9,127 13.0 8,675 1,052 --- Strip Mall 130 2,887 22.3 3,529 818 --- Enclosed Mall 12 1,817 Q 1,814 1,001 --- Other Retail 562 4,423 7.9 3,332 1,328 --Service 585 3,601 6.2 4,788 752 Office 705 10,478 14.9 27,053 387 Warehouse 580 8,481 14.6 4,904 1,730 Public Assembly 326 3,948 12.1 2,997 1,317 Education 309 7,740 25.1 10,096 767

190

Oil consumption, pollutant emission, oil proce volatility and economic activities in selected Asian Developing Economies.  

E-Print Network (OSTI)

??It is now well established in the literature that oil consumption, oil price shocks, and oil price volatility may impact the economic activities negatively. Studies… (more)

Rafiq, Shuddhasattwa

2009-01-01T23:59:59.000Z

191

Selective gene silencing in activated leukocytes by targeting siRNAs to the integrin lymphocyte  

E-Print Network (OSTI)

to suppress gene expression and cell proliferation only in activated lymphocytes. The siRNA-fusion proteinSelective gene silencing in activated leukocytes by targeting siRNAs to the integrin lymphocyte are resistant to lipid-based transfection in vitro and are difficult to target in vivo. We show here

Lieberman, Judy

192

Simultaneous pore enlargement and introduction of highly dispersed Fe active sites in MSNs for enhanced catalytic activity  

Science Conference Proceedings (OSTI)

An effective post-hydrothermal treatment strategy has been developed to dope highly dispersed iron catalytical centers into the framework of mesoporous silica, to keep the particle size in nanometric scale, and in the meanwhile, to expand the pore size of the synthesized mesoporous silica nanoparticles (MSNs). Characterization techniques such as XRD, BET, SEM and TEM support that the synthesized samples are long period ordered with particles size about 100 nm and a relatively large pore size of ca. 3.5 nm. UV-vis, XPS and EPR measurements demonstrate that the introduced iron active centers are highly dispersed in a coordinatively unsaturated status. NH{sub 3}-TPD verifies that the acid amount of iron-doped MSNs is quite high. The synthesized nanocatalysts show an excellent catalytic performance for benzylation of benzene by benzyl chloride, and they present relatively higher yield and selectivity to diphenylmethane with a lower iron content and much shorter reaction time. - Graphical abstract: Uniform MSNs with iron active centers and large pore size have been prepared by a newly developed strategy, which demonstrates enhanced catalytic performance for benzylation of benzene by benzyl chloride. Highlights: Black-Right-Pointing-Pointer Iron species were introduced into the framework of mesoporous silica nanoparticles with uniform dispersion. Black-Right-Pointing-Pointer The pore sizes of the synthesized nanocatalysts were expanded. Black-Right-Pointing-Pointer The acidic site quantities were quite high and the acidic centers were accessible. Black-Right-Pointing-Pointer The nanocatalysts presented higher yield and selectivity to diphenylmethane with significantly lower Fe content.

Gu Jinlou, E-mail: jinlougu@ecust.edu.cn [Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237 (China); Dong Xu [Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237 (China); Elangovan, S.P. [Nippon Chemical Industries Co. Ltd., Tokyo 136-8515 (Japan); Li Yongsheng; Zhao Wenru [Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237 (China); Iijima, Toshio; Yamazaki, Yasuo [Nippon Chemical Industries Co. Ltd., Tokyo 136-8515 (Japan); Shi Jianlin, E-mail: jlshi@mail.sic.ac.cn [Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237 (China); State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China)

2012-02-15T23:59:59.000Z

193

Boron diffusion and activation in polysilicon multilayer films for P+ MOS structure: Characterization and modeling  

Science Conference Proceedings (OSTI)

This work deals with in situ boron diffusion and activation in multilayer films: polysilicon (Poly1)/amorphous silicon (Poly2). These films are deposited by LPCVD technique. However, several heat treatments were carried in order to determine the optimal ... Keywords: Activation, Diffusion, Model, Polysilicon, SIMS profile

R. Mahamdi; L. Saci; F. Mansour; P. Temple-Boyer; E. Scheid; L. Jalabert

2009-01-01T23:59:59.000Z

194

Epidermal growth factor (EGF)-mediated DNA-binding activity of AP-1 is attenuated in senescent human epidermal keratinocytes  

E-Print Network (OSTI)

of microtubes activated NF-kB. J Cell Biol 1995: 128: 1111–regulation of wound healing? NF-kB activation in cultured

Shi, B; Isseroff, R R

2005-01-01T23:59:59.000Z

195

Comparison of Physical Activity Levels In a 6th Grade Hip-Hop Dance and Floor Hockey Unit of Instruction.  

E-Print Network (OSTI)

??Promoting physical activity in children is a major national health objective with schools being identified as a place to intervene. This study examined physical activity… (more)

Stevens, Jessica Lyn

2008-01-01T23:59:59.000Z

196

Tritium activities in Canada supporting CANDU{sup R} nuclear power reactors  

Science Conference Proceedings (OSTI)

An overview of the various Canadian tritium research and operational activities supporting the development, refurbishment and operation of CANDU{sup R} nuclear power reactors is presented. These activities encompass tritium health and safety, tritium in the environment, tritium interaction with materials, and tritium processing, and relate to both supporting R and D advances as well as operational best practices. The collective results of these activities contribute to our goals of improving worker and public safety, and operational efficiency. (authors)

Miller, J. M. [AECL, Chalk River Laboratories, Chalk River, ON K0J 1J0 (Canada)

2008-07-15T23:59:59.000Z

197

Fluctuations in Economic and Activity and Stabilization Policies in the CIS  

Science Conference Proceedings (OSTI)

In this study, a highly flexible form of nonlinear time series models called artificial neural networks (ANNs) are employed to predict fluctuations in economic activity in selected members (Armenia, Azerbaijan, Georgia, Kazakhstan, and Kyrgyzstan) of ... Keywords: Business cycles, Neural network, Out-of-sample forecasts, Real GDP, Recession

Khurshid M. Kiani

2011-02-01T23:59:59.000Z

198

Equipment Availability in the Home and School Environment: Its Relationship on Physical Activity in Children  

E-Print Network (OSTI)

Over the past three decades, instances of childhood obesity have tripled in the United States and are recognized as a serious public concern that requires action. Environmental factors have been identified as potential influences on the physical activity behavior of children; availability of equipment is one of these factors. The overall purpose of this dissertation was to examine availability of equipment as an environmental influence on a child’s physical activity behavior. The two environments where children spend the major of time, home and school, were evaluated for equipment availability and increased physical activity. Three studies were conducted to complete this purpose. In Manuscript 1, a systematic literature review was conducted, which included electronic databases as well as reference lists and author’s works as relevant. Only studies which measured home and school environments as factors in physical activity of children ages 5-12 were included. The review was conducted to determine the theoretical framework most used. Of the thirty-one studies reviewed, 67% showed little or no theoretical framework driving the study. Theoretical framework and models based on theory is needed to advance the field and this body of literature. In Manuscript 2, a systematic literature review was conducted which included electronic databases as well as reference lists and author’s works as relevant. Only studies which measured home and school environments and highlighted the availability of equipment as a factor in physical activity of children ages 5-12 were included. Of the twenty-one studies reviewed, only 14% clearly defined “equipment” and how it was measured for the particular study. With multiple definitions and confusion when comparing studies, standardization in this area is desperately needed. Manuscript 3, analyzed data from a larger study, NIH, Student Wellness Assessment and Advocacy Project (SWAAP), conducted in Waller county Texas, 2010. The results demonstrated which pieces of equipment in the home environment were available and the percentage of use. School environments were measured for availability of equipment and facilities. A linear regression analysis determined that being of Hispanic race was significant in less physical activity in an average seven day period. Given that children spend up to 80% of their day at home or school, influences in these two environments are extremely important to the development of physical activity behaviors. Future studies involving the availability and use of equipment should clearly define the type of equipment used or observed. In cases of intervention studies type and amount need to be clearly defined as well as assessment of its effect on physical activity in children. Several studies have been conducted for the specific age group of 6-12 year olds and their physical activity and multiple factors involved availability of opportunities for physical activity. Of those factors equipment availability has been shown to influence physical activity as well as not influence these opportunities. Standardization of the term equipment and how it is measured will allow researchers to have a clearer picture of the role that equipment plays in opportunities for children to be physically active.

Montandon, Kristi

2012-12-01T23:59:59.000Z

199

A Summary of Control System Security Standards Activities in the Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

A Summary of Control System Security Standards Activities in the A Summary of Control System Security Standards Activities in the Energy Sector (October 2005) A Summary of Control System Security Standards Activities in the Energy Sector (October 2005) This document is a compilation of the activities and initiatives concerning control system security that are influencing the standards process in the development of secure communication protocols and systems. Also contained in this report is a comparison of several of the sector standards, guidelines, and technical reports, demonstrating standards coverage by security topic. This work focuses on control systems standards applicable to the energy (oil, gas, and electric, but not nuclear) sector. Summary of CS Standards Activities in the Energy Sector.pdf More Documents & Publications

200

Effects of task difficulty on evoked gamma activity and ERPs in a visual discrimination task  

E-Print Network (OSTI)

¼ 1:66, P , 0:3). 3.3. Gamma responses Bursts of gamma activity after stimulus onset were only found-related synchronization in the gamma band. Brain 1998;121:2301­2315. De Pascalis V, Ray WJ. Effects of memory loadEffects of task difficulty on evoked gamma activity and ERPs in a visual discrimination task Daniel

Herrmann, Christoph

Note: This page contains sample records for the topic "activities in cluding" 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

Store-Independent Activation of Orai1 by SPCA2 in Mammary Tumors  

E-Print Network (OSTI)

Store-Independent Activation of Orai1 by SPCA2 in Mammary Tumors Mingye Feng,1 Desma M. Grice,3 in cytosolic Ca2+ trigger events critical for tumorigenesis, such as cellular motility, proliferation activity of SPCA2. Binding of the SPCA2 amino terminus to Orai1 enabled access of its carboxyl terminus

Kenny, Paraic

202

SAMOS: a model for monitoring students' and groups' activities in collaborative e-learning  

Science Conference Proceedings (OSTI)

We address the issue of monitoring students' and groups' activities in online collaborative learning environments. Such monitoring can provide valuable information to online instructors, who may guide and support the development of efficient ... Keywords: JIT, activity levels, collaborative learning, e-learning, educational data analysis, educational technology, group monitoring, just-in-, learning technology, online learning, student monitoring, time assistance

Angel A. Juan; Thanasis Daradoumis; Javier Faulin; Fatos Xhafa

2009-04-01T23:59:59.000Z

203

Adaptive prediction based approach for congestion estimation (APACE) in active queue management  

Science Conference Proceedings (OSTI)

Active Queue Management (AQM) policies provide an early indication of incipient congestion to the sources. In this paper, we propose a new AQM policy called APACE. APACE stands for Adaptive Prediction based Approach for Congestion Estimation in AQM that ... Keywords: Active queue management (AQM), Congestion control, Random early detection (RED), TCP

Abhishek Jain; Abhay Karandikar; Rahul Verma

2004-10-01T23:59:59.000Z

204

Brain activity and presence: a preliminary study in different immersive conditions using transcranial Doppler monitoring  

Science Conference Proceedings (OSTI)

Transcranial Doppler (TCD) sonography is a brain activity measurement technique that monitors the hemodynamic characteristics of the major cerebral arteries in normal and pathological conditions. As it is not invasive, it can be easily used in combination ... Keywords: Brain activity, Immersion, Navigation, Transcranial Doppler, Virtual reality

Beatriz Rey; Mariano Alcańiz; José Tembl; Vera Parkhutik

2010-03-01T23:59:59.000Z

205

Energy Storage Activities in the United States Electricity Grid. May 2011 |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy Storage Activities in the United States Electricity Grid. Energy Storage Activities in the United States Electricity Grid. May 2011 Energy Storage Activities in the United States Electricity Grid. May 2011 Energy storage technologies offer cost-effective flexibility and ancillary services needed by the U.S power grid. As policy reforms and decreasing technology costs facilitate market penetration, energy storage technologies offer increasingly competitive alternative means for utilities to engage these ancillary services. This report prepared by the Electricity Advisory Committee summarizes energy storage technology activities and projects in the U.S. electric power grid as of May 2011. Energy Storage Activities in the United States Electricity Grid. May 2011 More Documents & Publications Fact Sheet: Tehachapi Wind Energy Storage Project (October 2012)

206

A U-Th Calcite Isochron Age From An Active Geothermal Field In New Zealand  

Open Energy Info (EERE)

U-Th Calcite Isochron Age From An Active Geothermal Field In New Zealand U-Th Calcite Isochron Age From An Active Geothermal Field In New Zealand Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A U-Th Calcite Isochron Age From An Active Geothermal Field In New Zealand Details Activities (0) Areas (0) Regions (0) Abstract: We report here the first U-Th disequilibrium age for a hydrothermal mineral from an active geothermal system in New Zealand. Vein calcite recovered from a depth of 389 m in Well Thm-1 at the Tauhara geothermal field has an age of 99±44 ka BP. This age was determined using a leachate-leachate isochron technique on four silicate containing sub-samples of calcite from a single vein. Although the error on this isochron age is considerable, it is significantly younger than the earlier

207

Energy Storage Activities in the United States Electricity Grid. May 2011 |  

NLE Websites -- All DOE Office Websites (Extended Search)

Activities in the United States Electricity Grid. Activities in the United States Electricity Grid. May 2011 Energy Storage Activities in the United States Electricity Grid. May 2011 Energy storage technologies offer cost-effective flexibility and ancillary services needed by the U.S power grid. As policy reforms and decreasing technology costs facilitate market penetration, energy storage technologies offer increasingly competitive alternative means for utilities to engage these ancillary services. This report prepared by the Electricity Advisory Committee summarizes energy storage technology activities and projects in the U.S. electric power grid as of May 2011. Energy Storage Activities in the United States Electricity Grid. May 2011 More Documents & Publications Fact Sheet: Tehachapi Wind Energy Storage Project (October 2012)

208

The relevance of particle flux monitors in accelerator-based activation analysis  

SciTech Connect

One of the most critical parameters in activation analysis is the flux density of the activating radiation, its spatial distribution in particular. The validity of the basic equation for calculating the activity induced to the exposed item depends upon the fulfilment of several conditions, the most relevant of them being equal doses of incident activating radiation received by the unknown sample, the calibration material and the reference material, respectively. This requirement is most problematic if accelerator-produced radiation is used for activation. Whilst nuclear research reactors usually are equipped with exposure positions that provide fairly homogenous activation fields for thermal neutron activation analysis accelerator-generated particle beams (neutrons, photons, charged particles) usually exhibit axial and, in particular, sharp radial flux gradients. Different experimental procedures have been developed to fulfil the condition mentioned above. In this paper, three variants of the application of flux monitors in photon activation analysis are discussed (external monitor, additive and inherent internal monitor). Experiments have indicated that the latter technique yields highest quality of the analytical results.

Segebade, Chr.; Maimaitimin, M.; Sun Zaijing [Idaho Accelerator Centre, Idaho State University, 1500 Alvin Ricken Drive, Pocatello, ID 83201 (United States)

2013-04-19T23:59:59.000Z

209

Radiocaesium Activity Concentrations in Potatoes in Croatia after the Chernobyl Accident and Dose Assessment  

E-Print Network (OSTI)

Systematic investigations of 137Cs and 134Cs activity concentrations in potatoes (Solanum tuberosum) for the post-Chernobyl period (1986-2005) in the Republic of Croatia are summarized. The correlation between 137Cs activity concentrations in fallout and potatoes, has been found to be very good, the correlation coefficient being r2=0.88 with P(t) < 0.001 for 18 degrees of freedom. As the radiocaesium levels in potatoes decreased exponentially, the mean residence time of 137Cs in potatoes was estimated by fitting the measured activity concentrations to the exponential curve. The mean residence time was found to be 6.8 +/- 1.1 years, the standard deviation being estimated by the Monte Carlo simulations. The initial observed 134Cs:137Cs activity ratio in potatoes has been found to be quite variable, but slightly lesser than theoretically predicted value of 0.5, calculated by applying the known inventory of these radionuclides in the Chernobyl reactor to the equation for the differential radioactive decay. Thi...

Franic, Z; Marovic, G; Petrinec, B

2007-01-01T23:59:59.000Z

210

Aminoguanidine inhibits aortic hydrogen peroxide production, VSMC NOX activity and hypercontractility in diabetic mice  

E-Print Network (OSTI)

likely via a reduction in NOX-linked hypercontractility.signif- icant reduction in VSMC NOX activity remains to beNOX-derived O 2•- in diabetic VSMC might underlie AG reduction

Oak, Jeong-Ho; Youn, Ji-Youn; Cai, Hua

2009-01-01T23:59:59.000Z

211

Overview Of Electromagnetic Methods Applied In Active Volcanic...  

Open Energy Info (EERE)

in Colorado. For one example - Mt. Konocti in the Mayacamas Mountains, California - gravity, magnetic, and seismic, as well as electromagnetic methods have all been used in an...

212

Tobacco Industry Political Activity in Colorado 1979-1995  

E-Print Network (OSTI)

POLITICS IN COLORADO . . . . . . . . . . . . . . . . .24 INTRODUCTION Colorado was one of the first states in thewas the first city in Colorado to pass a clean indoor air

Monardi, Fred M. Ph.D.; O'Neill, Amanda; Glantz, Stanton A. Ph.D.

1996-01-01T23:59:59.000Z

213

Nearest Neighbor Distributions for Imbalanced Classification  

E-Print Network (OSTI)

from the oil and gas industry alongside a modified nearest neighbor algorithm. Our algorithm are present in many real-world applications, in- cluding fraud/intrustion detection, anomaly detection

Slatton, Clint

214

Notch activated protective signaling in damaged mammalian myocardium  

E-Print Network (OSTI)

mediated transcription of ANP in vitro; Akt1/PKB alleviatesmediated transcription of ANP in vitro; this repression is

Gude, Natalie A.

2010-01-01T23:59:59.000Z

215

Publication activities of Russian organizations in the area of functional nanomaterials  

Science Conference Proceedings (OSTI)

A bibliometric study of publications on functional nanomaterials in Russia and worldwide is presented. The Scopus -- abstracts database with analytical facilities (Elsevier, Netherlands) is used for defining the publication activity of Russian organizations. ... Keywords: Russia, bibliographic databases, bibliometric analysis, citation, functional nanomaterials, geomonitoring, publication activity, the Scopus database, world information flow

N. S. Soloshenko; V. M. Efremenkova; O. V. Kirillova

2012-02-01T23:59:59.000Z

216

The evolution of artifacts in cooperative work: constructing meaning through activity  

Science Conference Proceedings (OSTI)

A two year case study of cooperative work was inspired by the installation of CSCW software in a community bank. The framework for the research was developed by combining activity theory and the principles of communities of practice. This framework provided ... Keywords: CSCW applications, activity theory, artifact meaning, artifacts, communities of practice, cooperative work, emergence, work ethnography

Marlin M. Cluts

2003-11-01T23:59:59.000Z

217

AvrRpm1 Missense Mutations Weakly Activate RPS2-Mediated Immune Response in Arabidopsis thaliana  

E-Print Network (OSTI)

AvrRpm1 Missense Mutations Weakly Activate RPS2- Mediated Immune Response in Arabidopsis thaliana Plants recognize microbes via specific pattern recognition receptors that are activated by microbe to pathogen proliferation. Plant pathogenic bacteria like Pseudomonas syringae utilize a type III secretion

Dangl, Jeff

218

Primary cell of high energy density in which the anode active material is an alkali metal  

Science Conference Proceedings (OSTI)

A primary cell of high specific energy in which the anode active material is an alkali metal and the cathode active material is sulphur oxychloride which simultaneously acts as an electrolyte solvent, said electrolyte further containing a dissolved salt and a co-solvent. The co-solvent is chosen from among phosphoryl chloride and benzoyl chloride; the dissolved salt is lithium tetrachloroaluminate.

Gabano, J.

1983-02-01T23:59:59.000Z

219

Computer simulation of the activity of the elderly person living independently in a Health Smart Home  

Science Conference Proceedings (OSTI)

We propose a simulator of human activities collected with presence sensors in our experimental Health Smart Home ''Habitat Intelligent pour la Sante (HIS)''. We recorded 1492 days of data on several experimental HIS during the French national project ... Keywords: Correlation, Distance, Health Smart Homes, Hidden Markov Machine, Human activity, Polya Urn, Similarity, Simulator

N. Noury; T. Hadidi

2012-12-01T23:59:59.000Z

220

Quantum Dynamical Effects in Thermally-Activated Dislocation Glide  

Science Conference Proceedings (OSTI)

We show here that this discrepancy arises from quantum effects in atomic motion (zero-point motion and tunneling) so far neglected in atomistic calculations ...

Note: This page contains sample records for the topic "activities in cluding" 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

Analysis of kafirin promoter activity in transgenic tobacco seeds  

Science Conference Proceedings (OSTI)

Genes encoding the prolamin seed proteins in sorghum,. Coix and maize are present in ... terization of gene family from sorghum that encodes kafirin, the major ...

222

Building Technologies Office: Key Activities in Energy Efficiency  

NLE Websites -- All DOE Office Websites (Extended Search)

work in three key areas in order to continually develop innovative, cost-effective energy saving solutions. research and development (R&D), market stimulation, and building...

223

A Computational Analysis of Lower Bounds for Big Bucket ...  

E-Print Network (OSTI)

to solve, and this is addressed by a thorough analysis in the paper. We con- clude with ...... Pentium 4 2.53 GHz processor and 1 GB of RAM. All the formulations ...

224

To See or Not to See: The Viability of Visibility at the Grand Canyon  

E-Print Network (OSTI)

control regional haze. 72 Vermont then filed a petition forEPA rules did not require Vermont to in- clude regional haze§ 52, subpart D (1993)). Vermont v. Thomas, 850 F.2d 99,

Bergman, Steven H.

1994-01-01T23:59:59.000Z

225

Method for improved selectivity in photo-activation of molecular agents  

DOE Patents (OSTI)

An apparatus for the treatment of a particular volume of plant or animal tissue by treating the plant or animal tissue with at least one photo-active molecular agent, wherein the particular volume of the plant or animal tissue retains at least a portion of the at least one photo-active molecular agent, and then treating the particular volume of the plant or animal tissue with light sufficient to promote a simultaneous two-photon excitation of at least one of the at least one photo-active molecular agent retained in the particular volume of the plant or animal tissue, wherein the at least one photo-active molecular agent becomes active in the particular volume of the plant or animal tissue.

Fisher, Walter G. (Knoxville, TN); Wachter, Eric A. (Oak Ridge, TN); Dees, H. Craig (Knoxville, TN)

2000-01-01T23:59:59.000Z

226

Environmental control technology activities of the Department of Energy in FY 1978  

DOE Green Energy (OSTI)

This second in a series of annual reports on environmental control technology activities within DOE serves as a basis for evaluating program progress. The total DOE FY 1978 funding allocation related to environmenta control activities was $294 million, which corresponds to 3.3% of the total FY 1978 budget. Funding allocations for environmental control activities in the budget show fossil and nuclear energy technologies accounting for 90% of the total (26 and 64%, respectively). The majority of the fossil-energy-related activities were related to the coal program. Waste management activities demanded the majority of the nuclear energy funds. Conservation and geothermal made up 4 and 3%, respectively, of the total. The remaining portion of the total consisted of solar (2%), basic energy sciences (1%), and magnetic fusion energy (less than 1%). (MCW)

Not Available

1979-03-01T23:59:59.000Z

227

Activities of ?-ray emitting isotopes in rainwater from Greater Sudbury, Canada following the Fukushima incident  

E-Print Network (OSTI)

We report the activity measured in rainwater samples collected in the Greater Sudbury area of eastern Canada on 3, 16, 20, and 26 April 2011. The samples were gamma-ray counted in a germanium detector and the isotopes 131I and 137Cs, produced by the fission of 235U, and 134Cs, produced by neutron capture on 133Cs, were observed at elevated levels compared to a reference sample of ice-water. These elevated activities are ascribed to the accident at the Fukushima Dai-ichi nuclear reactor complex in Japan that followed the 11 March earthquake and tsunami. The activity levels observed at no time presented health concerns.

B. T. Cleveland; F. A. Duncan; I. T. Lawson; N. J. T. Smith; E. Vazquez-Jauregui

2012-01-19T23:59:59.000Z

228

Possible involvement of AMP-activated protein kinase in obesity resistance induced by respiratory uncoupling in white fat  

E-Print Network (OSTI)

Possible involvement of AMP-activated protein kinase in obesity resistance induced by respiratory case by downregulating peroxisome proliferator-activated receptor c (PPARc; [23]). The role of AMPK Department of Biologically Active Compounds, Institute of Physiology, Academy of Sciences of the Czech

Miksik, Ivan

229

U-225: Citrix Access Gateway Plug-in for Windows nsepacom ActiveX Control  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

5: Citrix Access Gateway Plug-in for Windows nsepacom ActiveX 5: Citrix Access Gateway Plug-in for Windows nsepacom ActiveX Control Vulnerabilities U-225: Citrix Access Gateway Plug-in for Windows nsepacom ActiveX Control Vulnerabilities August 1, 2012 - 5:37am Addthis PROBLEM: Citrix Access Gateway Plug-in for Windows nsepacom ActiveX Control Vulnerabilities PLATFORM: Citrix Access Gateway 9.x ABSTRACT: Two vulnerabilities in Citrix Access Gateway Plug-in for Windows can be exploited by malicious people to compromise a user's system. reference LINKS: Citrix Knowledge Center Secunia Advisory SA45299 Secunia Research Secunia Research CVE-2011-2592 CVE-2011-2593 IMPACT ASSESSMENT: High Discussion: Research has discovered two vulnerabilities in Citrix Access Gateway Plug-in for Windows, which can be exploited by malicious people to

230

NIST Activities in Support of the Energy Independence and Security Act  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

NIST Activities in Support of the Energy Independence and Security NIST Activities in Support of the Energy Independence and Security Act (EISA) of 2007 NIST Activities in Support of the Energy Independence and Security Act (EISA) of 2007 Revitalizing the electric power grid has become one of our Nation's top priorities, promising to reduce our dependence on oil and to meet the anticipated 1.1% annual increase in demand for electricity1. In his New Energy for America plan, President-elect Obama calls for increased investment in the next generation power grid, referred to as the Smart Grid, to help reach the ambitious goals of ensuring that renewable sources provide 10% of our electricity by 2012 and 25% by 2025; and that 1 million Plug-In Hybrid cars are on the roads by 2015. NIST Activities in Support of the Energy Independence and Security Act

231

Leading Tropical Modes Associated with Interannual and Multidecadal Fluctuations in North Atlantic Hurricane Activity  

Science Conference Proceedings (OSTI)

Interannual and multidecadal extremes in Atlantic hurricane activity are shown to result from a coherent and interrelated set of atmospheric and oceanic conditions associated with three leading modes of climate variability in the Tropics. All ...

Gerald D. Bell; Muthuvel Chelliah

2006-02-01T23:59:59.000Z

232

Synoptic and Regional Circulation Parameters Associated with the Degree of Convective Shower Activity in South Florida  

Science Conference Proceedings (OSTI)

Radar and synoptic data obtained during the Florida Area Cumulus Experiment have been used in an exploratory study to investigate the effects of synoptic and regional circulations on the development of convective activity in south Florida. The ...

Raúl E. López; Patrick T. Gannon Sr.; David O. Blanchard; Christopher C. Balch

1984-04-01T23:59:59.000Z

233

ARAACtional exuberance : lessons and prospects for age-restricted active adult housing development in Massachusetts  

E-Print Network (OSTI)

In the last fifteen years, Massachusetts and neighboring states have experienced explosive growth in a hitherto alien form of residential development to the region: the age-restricted active adult retirement community ...

Dawson, Sloan William

2010-01-01T23:59:59.000Z

234

Sources of Gravity Wave Activity Seen in the Vertical Velocities Observed by the Flatland VHF Radar  

Science Conference Proceedings (OSTI)

Observations of vertical velocity made with the Flatland VHF radar located in the extremely flat terrain near Champaign, Illinois, are used to study sources of enhanced variance. The variance is used as an indicator of gravity wave activity. In ...

G. D. Nastrom; M. R. Peterson; J. L. Green; K. S. Gage; T. E. VanZandt

1990-08-01T23:59:59.000Z

235

Activity recognition with end-user sensor installation in the home  

E-Print Network (OSTI)

In this work, a system for recognizing activities in the home setting that uses a set of small and simple state-change sensors, machine learning algorithms, and electronic experience sampling is introduced. The sensors are ...

Rockinson, Randy Joseph

2008-01-01T23:59:59.000Z

236

MODIS Reflectance and Active Fire Data for Burn Mapping in Colombia  

Science Conference Proceedings (OSTI)

Satellite-based strategies for burned area mapping may rely on two types of remotely sensed data: postfire reflectance images and active fire detection. This study uses both methods in a synergistic way. In particular, burned area mapping is ...

Silvia Merino-de-Miguel; Federico González-Alonso; Margarita Huesca; Dolors Armenteras; Carol Franco

2011-02-01T23:59:59.000Z

237

Integration of Locational Decisions with the Household Activity Pattern Problem and Its Applications in Transportation Sustainability  

E-Print Network (OSTI)

activity, R is the battery capacity, r is the charging rate,In the analysis, battery capacity is kept in the unit ofthe full electric battery inventory (capacity) of vehicle of

Kang, Jee Eun

2013-01-01T23:59:59.000Z

238

Status of Overseas Microgrid Programs: Microgrid Research Activities in the U.S.  

E-Print Network (OSTI)

Microgrid Research Activities in the U.S. Chris Marnay andadditional funding for microgrid demonstrations in 2008 [4].provide a boost to U.S. microgrid research and results of

Marnay, Chris

2008-01-01T23:59:59.000Z

239

Unsupervised Activity Perception in Crowded and Complicated Scenes Using Hierarchical Bayesian Models  

E-Print Network (OSTI)

We propose a novel unsupervised learning framework to model activities and interactions in crowded and complicated scenes. Hierarchical Bayesian models are used to connect three elements in visual surveillance: low-level ...

Wang, Xiaogang

240

Method for improved selectivity in photo-activation and detection of molecular diagnostic agents  

DOE Patents (OSTI)

A method for the imaging of a particular volume of plant or animal tissue, wherein the plant or animal tissue contains at least one photo-active molecular agent. The method includes the steps of treating the particular volume of the plant or animal tissue with light sufficient to promote a simultaneous two-photon excitation of the photo-active molecular agent contained in the particular volume of the plant or animal tissue, photo-activating at least one of the at least one photo-active molecular agent in the particular volume of the plant or animal tissue, thereby producing at least one photo-activated molecular agent, wherein the at least one photo-activated molecular agent emits energy, detecting the energy emitted by the at least one photo-activated molecular agent, and producing a detected energy signal which is characteristic of the particular volume of plant or animal tissue. The present invention is also a method for the imaging of a particular volume of material, wherein the material contains at least one photo-active molecular agent.

Wachter, Eric A. (Oak Ridge, TN); Fisher, Walter G. (Knoxville, TN); Dees, H. Craig (Knoxville, TN)

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "activities in cluding" 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

Methods for improved selectivity in photo-activation and detection of molecular diagnostic agents  

DOE Patents (OSTI)

A method for the imaging of a particular volume of plant or animal tissue, wherein the plant or animal tissue contains at least one photo-active molecular agent. The method comprises the steps of treating the particular volume of the plant or animal tissue with light sufficient to promote a simultaneous two-photon excitation of the photo-active molecular agent contained in the particular volume of the plant or animal tissue, photo-activating at least one of the at least one photo-active molecular agent in the particular volume of the plant or animal tissue, thereby producing at least one photo-activated molecular agent, wherein the at least one photo-activated molecular agent emits energy, detecting the energy emitted by the at least one photo-activated molecular agent, and producing a detected energy signal which is characteristic of the particular volume of plant or animal tissue. The present invention also provides a method for the imaging of a particular volume of material, wherein the material contains at least one photo-active molecular agent.

Wachter, Eric A. (Oak Ridge, TN); Fisher, Walter G. (Knoxville, TN); Dees, H. Craig (Knoxville, TN)

2008-03-18T23:59:59.000Z

242

Method for improved selectivity in photo-activation and detection of molecular diagnostic agents  

DOE Patents (OSTI)

A method for the imaging of a particular volume of plant or animal tissue, wherein the plant or animal tissue contains at least one photo-active molecular agent. The method includes the steps of treating the particular volume of the plant or animal tissue with light sufficient to promote a simultaneous two-photon excitation of the photo-active molecular agent contained in the particular volume of the plant or animal tissue, photo-activating at least one of the at least one photo-active molecular agent in the particular volume of the plant or animal tissue, thereby producing at least one photo-activated molecular agent, wherein the at least one photo-activated molecular agent emits energy, detecting the energy emitted by the at least one photo-activated molecular agent, and producing a detected energy signal which is characteristic of the particular volume of plant or animal tissue. The present invention is also a method for the imaging of a particular volume of material, wherein the material contains at least one photo-active molecular agent. 13 figs.

Wachter, E.A.; Fisher, W.G.; Dees, H.C.

1998-11-10T23:59:59.000Z

243

Persistent Patterns of Thunderstorm Activity in the Central United States  

Science Conference Proceedings (OSTI)

Observations of thunderstorm events by mouth for the period 1948–77 at 106 stations in the central United States are used to examine persistent spatial patterns in thunderstorm occurrence. A principal components analysis reveals that nearly 55% ...

David R. Easterling

1990-12-01T23:59:59.000Z

244

CCQM Activities in the Inorganic Analysis Working Group and ...  

Science Conference Proceedings (OSTI)

... CCQM-K75 Platinum and Nickel in Algae; CCQM-P106 Cd, Cr, Hg, and Pb in Polypropylene; CCQM-P107 Purity of Zinc; CCQM-P119 Determination ...

2012-11-16T23:59:59.000Z

245

LGN activity patterns during ocular dominance plasticity in vivo  

E-Print Network (OSTI)

Perturbations of sensory experience in young animals are known to cause lasting changes in adult brain function. For example, monocular visual deprivation by lid closure (MC) leads to a loss of cortical responsiveness of ...

Linden, Monica L. (Monica Loryn)

2008-01-01T23:59:59.000Z

246

Transparent selective illumination means suitable for use in optically activated electrical switches and optically activated electrical switches constructed using same  

DOE Patents (OSTI)

A planar transparent light conducting means and an improved optically activated electrical switch made using the novel light conducting means are disclosed. The light conducting means further comprise light scattering means on one or more opposite planar surfaces thereof to transmit light from the light conducting means into adjacent media and reflective means on other surfaces of the light conducting means not containing the light scattering means. The optically activated electrical switch comprises at least two stacked photoconductive wafers, each having electrodes formed on both surfaces thereof, and separated by the planar transparent light conducting means. The light scattering means on the light conducting means face surfaces of the wafers not covered by the electrodes to transmit light from the light conducting means into the photoconductive wafers to uniformly illuminate and activate the switch.

Wilcox, Russell B. (Oakland, CA)

1991-01-01T23:59:59.000Z

247

Notch activated protective signaling in damaged mammalian myocardium  

E-Print Network (OSTI)

are inducible with doxycycline 98occurs following application of doxycycline. In addition toare inducible with doxycycline A common concern with

Gude, Natalie A.

2010-01-01T23:59:59.000Z

248

Tropical Forest Fragments Enhance Pollinator Activity in Nearby Coffee Crops  

E-Print Network (OSTI)

accounted for >90% of all floral visits in distant sites. The gradient from the riparian strip showed visitation rates by over 50% in distant sites (where Apis was almost the only pollinator). In near sites dependence on a single introduced pollinator. Exploring the economic links between forest preservation

Vermont, University of

249

Fundamental quantitative analysis of microbial activity in aquifer bioreclamation  

SciTech Connect

In situ bioremediation of hazardous organic chemicals that contaminate aquifer solids and ground water is a highly promising technique for many sites at DOE facilities. Its potential stems from having agents for destruction of the contaminants (bacteria) close to the separate-phase liquid or sorbed contaminants. This project was designed to advance knowledge in several of the microbiological fundamentals most important to in situ bioremediation: biodegradation of poorly soluable organic contaminants; dual limitation kinetics of electron donors and acceptors; kinetics of sequential degradation involving oxygenase reaction; biologically induced clogging in porous media, and two dimensional modeling of biofilm reactions in non homogeneous porous media.

Rittman, B.E.; Valocchi, A.J. [Univ. of Illinois, Urbana, IL (United States). Dept. of Civil Engineering; Baveye, P. [Cornell Univ., Ithaca, NY (United States). Dept. of Agronomy

1993-08-01T23:59:59.000Z

250

Agriculture in an area impacted by past uranium mining activities  

SciTech Connect

The shallow aquifer near the old Cunha Baixa uranium mine (Viseu, Portugal) was contaminated by acid mine drainage. Concentration of radionuclides in water from irrigation wells and in the topsoil layer of the agriculture fields nearby display enhanced concentrations of uranium, radium and polonium. Two types of agriculture land in this area were selected, one with enhanced and another with low uranium concentrations, for controlled growth of lettuce and potatoes. Plants were grown in replicate portions of land (two plots) in each soil type and were periodically irrigated with water from wells. In each soil, one plot was irrigated with water containing low concentration of dissolved uranium and the other plot with water containing enhanced concentration of dissolved uranium. At the end of the growth season, plants were harvested and analysed, along with soil and irrigation water samples. Results show the accumulation of radionuclides in edible parts of plants, specially in the field plots with higher radionuclide concentrations in soil. Radionuclides in irrigation water contributed less to the radioactivity accumulated in plants than radionuclides from soils. (authors)

Carvalho, F. P.; Oliveira, J. M. [Instituto Tecnologico e Nuclear, Departamento de Proteccao Radiologica e Seguranca Nuclear, E.N. 10, 2686-953 Sacavem (Portugal); Neves, O.; Vicente, E. M. [Instituto Superior Tecnico Centro de Petrologia e Geoquimica, Universidade Tecnica de Lisboa, Av. Rovisco Pais 1049-001 Lisboa (Portugal); Abreu, M. M. [Dept Ciencias do Ambiente, Instituto Superior de Agronomia, Universidade Tecnica de Lisboa, Tapada da Ajuda 1399-017 Lisboa (Portugal)

2007-07-01T23:59:59.000Z

251

Recent National Solar Thermal Test Facility activities, in partnership with industry  

DOE Green Energy (OSTI)

The National Solar Thermal Test Facility (NSTTF) at Sandia National Laboratories in Albuquerque, New Mexico, USA conducts testing of solar thermal components and systems, funded primarily by the US Department of Energy. Activities are conducted in support of Central Receiver Technology, Distributed Receiver Technology and Design Assistance projects. All activities are performed in support of various cost-shared government/industry joint ventures and, on a design assistance basis, in support of a number of other industry partners.

Ghanbari, C.; Cameron, C.P.; Ralph, M.E.; Pacheco, J.E.; Rawlinson, K.S. [Sandia National Labs., Albuquerque, NM (United States); Evans, L.R. [Ewing Technical Design, Albuquerque, NM (United States)

1994-10-01T23:59:59.000Z

252

Characterization of mutagenic activity in grain-based coffee-substitute blends and instant coffees  

SciTech Connect

Several grain-based coffee-substitute blends and instant coffees showed a mutagenic response in the Ames/Salmonella test using TA98, YG1024 and YG1O29 with metabolic activation. The beverage powders contained 150 to 500 TA98 and 1150 to 4050 YG1024 revertant colonies/gram, respectively. The mutagenic activity in the beverage powders was shown to be stable to heat and the products varied in resistance to acid nitrite treatment. Characterization of the mutagenic activity, using HPLC-and the Ames test of the collected fractions, showed the coffee-substitutes and instant coffees contain several mutagenic compounds, which are most likely aromatic amines.

Johansson, M.A.E.; Knize, M.G.; Felton, J.S.; Jagerstad, M.

1994-06-01T23:59:59.000Z

253

NIST Mini-sensor Measures Magnetic Activity in Human Brain  

Science Conference Proceedings (OSTI)

... to measure alpha waves in the brain associated with a person opening and closing their eyes as well as signals resulting from stimulation of the ...

2012-05-07T23:59:59.000Z

254

Using STAMP to understand recent increases in malicious software activity  

E-Print Network (OSTI)

My advisor, Professor Leveson has developed an accident modeling framework called STAMP (Systems Theoretic Accident Modeling and Processes.) Traditional accident models typically focus on component failure; in contrast, ...

Zipkin, David S

2005-01-01T23:59:59.000Z

255

Overview of NIST Activities in Support of Advanced ...  

Science Conference Proceedings (OSTI)

... globalization into global centers of high-tech jobs. ... industries in energy, national security, and human ... on enabling and accelerating the creation and ...

2013-06-12T23:59:59.000Z

256

Mechanisms of motor activity regulation in axonal transport  

E-Print Network (OSTI)

al. (2005). "Axonopathy and transport deficits early in theSunday Driver links axonal transport to damage signaling." JL. Holzbaur (2006). "Axonal transport and neurodegenerative

Reis, Gerald Feliz

2008-01-01T23:59:59.000Z

257

EIA Corrects Errors in Its Drilling Activity Estimates Series  

U.S. Energy Information Administration (EIA)

gas and oil wells relative to total wells, improved greatly as early as 1986 as seen in the revised drilling statistics. The prior well data series did

258

Helping in collaborative activity regulation: modeling regulation scenarii  

Science Conference Proceedings (OSTI)

The regulation was introduced into groupware in order to improve the actors collaboration. In our context, the regulation means the ability given to a group or a person that manages a group. This paper describes an approach of setting up about this regulation ... Keywords: XML, groupware, regulation, scenario

Stéphane Talbot; Philippe Pernelle

2003-11-01T23:59:59.000Z

259

Survey of Hydrogenase Activity in Algae: Final Report  

DOE Green Energy (OSTI)

The capacity for hydrogen gas production was examined in nearly 100 strains of Eukaryotic algae. Each strain was assessed for rate of H2 production in darkness, at compensating light intensity and at saturating Tight intensity. Maximum H2 yield on illumination and sensitivity to molecular oxygen were also measured.

Brand, J. J.

1982-04-01T23:59:59.000Z

260

Review and Assessment of Air Quality Management Activities in Texas  

Science Conference Proceedings (OSTI)

Many air quality studies indicate that ozone, fine particulates, and haze are interrelated and often regional in extent. Emission management strategies to mitigate these pollutants are likely to involve regional control measures. This report summarizes recent air quality studies in the State of Texas to support the development of integrated air quality management strategies to meet new air quality standards.

1999-07-02T23:59:59.000Z

Note: This page contains sample records for the topic "activities in cluding" 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

Extraordinarily Efficient Conduction in a Redox-Active Ionic Liquid  

E-Print Network (OSTI)

Iodine added to iodide-based ionic liquids leads to extraordinarily efficient charge transport, vastly exceeding that expected for such viscous systems. Using terahertz time-domain spectroscopy, in conjunction with dc conductivity, diffusivity and viscosity measurements we unravel the conductivity pathways in 1-methyl-3-propylimidazolium iodide melts. This study presents evidence of the Grotthuss mechanism as a significant contributor to the conductivity, and provides new insights into ion pairing processes as well as the formation of polyiodides. The terahertz and transport results are reunited in a model providing a quantitative description of the conduction by physical diffusion and the Grotthuss bond-exchange process. These novel results are important for the fundamental understanding of conduction in molten salts and for applications where ionic liquids are used as charge-transporting media such as in batteries and dye-sensitized solar cells.

Verner K. Thorsmřlle; Guido Rothenberger; Daniel Topgaard; Jan C. Brauer; Dai-Bin Kuang; Shaik M. Zakeeruddin; Björn Lindman; Michael Grätzel; Jacques-E. Moser

2010-11-09T23:59:59.000Z

262

Mineral ecophysiological evidence for microbial activity in banded iron formation  

Science Conference Proceedings (OSTI)

The phosphorus composition of banded-iron formations (BIFs) has been used as a proxy for Precambrian seawater composition and the paleoeredox state of Earth's surface environment. However, it is unclear whether the phosphorus in BIFs originally entered the sediment as a sorbed component of the iron oxyhydroxide particles, or whether it was incorporated into the biomass of marine phytoplankton. We conducted high-resolution mineral analyses and report here the first detection of an Fe(III) acetate salt, as well as nanocrystals of apatite in association with magnetite, in the 2.48 Ga Dales Gorge Member of the Brockman Iron Formation (a BIF), Hamersley, Western Australia. The clusters of apatite are similar in size and morphology to biogenic apatite crystals resulting from biomass decay in Phanerozoic marine sediments, while the formation of an Fe(III) acetate salt and magnetite not only implies the original presence of biomass in the BIF sediments, but also that organic carbon likely served as an electron donor during bacterial Fe(III) reduction. This study is important because it suggests that phytoplankton may have played a key role in the transfer of phosphorus (and other trace elements) from the photic zone to the seafloor.

Li, Dr. Yi-Liang [University of Tennessee, Knoxville (UTK); Konhauser, Dr, Kurt [University of Alberta; Cole, David R [ORNL; Phelps, Tommy Joe [ORNL

2011-01-01T23:59:59.000Z

263

Public Activities  

NLE Websites -- All DOE Office Websites (Extended Search)

publicactivities_header.jpg publicactivities_header.jpg Public Activities Citizens are encouraged to learn about the Department of Energy's programs through a variety of activities that are open to the public. Our goal is to educate citizens and seek their meaningful involvement. If you are visiting the area, the American Museum of Science and Energy in Oak Ridge is the best starting point for exhibits and information about DOE programs in science, environmental management, nuclear fuel supply, and national security. Tours are conducted of the Oak Ridge National Laboratory, Y-12 National Security Complex and East Tennessee Technology Park during the summer months departing from the Museum. For those with more specific interests in our programs, each month we publish a calendar of public involvement activities, which identifies announcements, comment periods and public meetings of potential interest. Our Environmental Management Program has a Site Specific Advisory Board composed of area citizens who meet the second Wednesday of each month.

264

Evaluation of Efficiency Activities in the Industrial Sector...  

NLE Websites -- All DOE Office Websites (Extended Search)

industrial sector consumes 25% of theenergy used and emits 28% of the carbon dioxide (CO2) produced in the state. Manycountries around the world have national-level GHG...

265

Fundamental patterns of bilateral muscle activity in human locomotion  

Science Conference Proceedings (OSTI)

human locomotion, not much is known about the way in which the central ..... combination of just five factors with a mean square error of only 1.9%. EMG signals ...

266

Reclaiming the commons : art and activism in the neoliberal city  

E-Print Network (OSTI)

How can artistic/activist practices respond to urban conditions of exclusion and inequality? Since the 1970s, urban redevelopment in the United States has been dominated by a neoliberal ideology that promotes privatization, ...

Berzofsky, Scott (Scott A.)

2012-01-01T23:59:59.000Z

267

Trace-Element Distribution In An Active Hydrothermal System,...  

Open Energy Info (EERE)

flow-controlling fractures; (5) deposits of CaCO3 at depth where flashing of brine to steam has occurred due to pressure release. The geochemical enrichments are not, in...

268

Active control of tip clearance flow in axial compressors  

E-Print Network (OSTI)

Control of compressor tip clearance flows is explored in a linear cascade using three types of fluidic actuators; Normal Synthetic Jet (NSJ; unsteady jet normal to the mean flow with zero net mass flux), Directed Synthetic ...

Bae, Jinwoo W

2001-01-01T23:59:59.000Z

269

Sustainability in Research: Geography & Planning Researcher Title Respective Activities  

E-Print Network (OSTI)

of micro-hydro power generation (very small-scale electric power generation in streams and water courses to the placement of micro-hydro power generators are how water rights and property rights affect the development

Rose, Annkatrin

270

Lab activities requiring minimal resources for courses in computer networking  

Science Conference Proceedings (OSTI)

Computer networking is an area that recently has experienced a dramatic increase in interest. This has been fueled by the widespread use of the Internet along with wireless and mobile computing devices. The importance of networking has been confirmed ...

David R. Surma

2005-10-01T23:59:59.000Z

271

Preliminary study on hydrogeology in tectonically active areas.  

Science Conference Proceedings (OSTI)

This report represents the final product of a background literature review conducted for the Nuclear Waste Management Organization of Japan (NUMO) by Sandia National Laboratories, Albuquerque, New Mexico, USA. Internationally, research of hydrological and transport processes in the context of high level waste (HLW) repository performance, has been extensive. However, most of these studies have been conducted for sites that are within tectonically stable regions. Therefore, in support of NUMO's goal of selecting a site for a HLW repository, this literature review has been conducted to assess the applicability of the output from some of these studies to the geological environment in Japan. Specifically, this review consists of two main tasks. The first was to review the major documents of the main HLW repository programs around the world to identify the most important hydrologic and transport parameters and processes relevant in each of these programs. The review was to assess the relative importance of processes and measured parameters to site characterization by interpretation of existing sensitivity analyses and expert judgment in these documents. The second task was to convene a workshop to discuss the findings of Task 1 and to prioritize hydrologic and transport parameters in the context of the geology of Japan. This report details the results and conclusions of both of these Tasks.

Lowry, Thomas Stephen; Lappin, Allen R.; Gettemy, Glen L.; Jensen, Richard Pearson; Arnold, Bill Walter; James, Scott Carlton; Lee, Moo Yul; Meier, Diane A.

2006-09-01T23:59:59.000Z

272

DARK MATTER AS AN ACTIVE GRAVITATIONAL AGENT IN CLOUD COMPLEXES  

SciTech Connect

We study the effect that the dark matter background (DMB) has on the gravitational energy content and, in general, on the star formation efficiency (SFE) of a molecular cloud (MC). We first analyze the effect that a dark matter halo, described by the Navarro-Frenk-White density profile, has on the energy budget of a spherical, homogeneous cloud located at different distances from the halo center. We found that MCs located in the innermost regions of a massive galaxy can feel a contraction force greater than their self-gravity due to the incorporation of the potential of the galaxy's dark matter halo. We also calculated analytically the gravitational perturbation that an MC produces over a uniform DMB (uniform at the scales of an MC) and how this perturbation will affect the evolution of the MC itself. The study shows that the star formation in an MC will be considerably enhanced if the cloud is located in a dense and low velocity dark matter environment. We confirm our results by measuring the SFE in numerical simulations of the formation and evolution of MCs within different DMBs. Our study indicates that there are situations where the dark matter's gravitational contribution to the evolution of the MCs should not be neglected.

Suarez-Madrigal, Andres; Ballesteros-Paredes, Javier; Colin, Pedro; D'Alessio, Paola, E-mail: a.suarez@crya.unam.mx [Centro de Radioastronomia y Astrofisica, Universidad Nacional Autonoma de Mexico, Apdo. Postal 72-3 (Xangari), Morelia, Michocan, Mexico C.P. 58089 (Mexico)

2012-04-01T23:59:59.000Z

273

Trace-Element Distribution In An Active Hydrothermal System, Roosevelt Hot  

Open Energy Info (EERE)

Trace-Element Distribution In An Active Hydrothermal System, Roosevelt Hot Trace-Element Distribution In An Active Hydrothermal System, Roosevelt Hot Springs Thermal Area, Utah Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Trace-Element Distribution In An Active Hydrothermal System, Roosevelt Hot Springs Thermal Area, Utah Details Activities (3) Areas (1) Regions (0) Abstract: Chemical interaction of thermal fluids with reservoir rock in the Roosevelt Hot Springs thermal area, Utah, has resulted in the development of characteristic trace-element dispersion patterns. Multielement analyses of surface rock samples, soil samples and drill cuttings from deep exploration wells provide a three-dimensional perspective of chemical redistribution within this structurally-controlled hot-water geothermal system. Five distinctive elemental suites of chemical enrichment are

274

Active Geothermal Systems And Associated Gold Deposits In The Great Basin |  

Open Energy Info (EERE)

Geothermal Systems And Associated Gold Deposits In The Great Basin Geothermal Systems And Associated Gold Deposits In The Great Basin Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Active Geothermal Systems And Associated Gold Deposits In The Great Basin Details Activities (0) Areas (0) Regions (0) Abstract: In western North America, a number of geothermal systems derive their heat from magmas or cooling intrusions. The interior of the Great Basin however, is characterized by widespread amagmatic geothermal activity that owes its existence to high crustal heat flow and active extensional tectonics. Both the magmatically heated and extensional fluid types in the Great Basin have recently, or are currently, depositing gold. Quaternary to Pliocene-aged gold deposits with adjacent high-temperature (≤ 150°C)

275

Recent activities in the Aerosol Generation and Transport Program  

SciTech Connect

General statements may be made on the behavior of single-component and multi-component aerosols in the Nuclear Safety Pilot Plant vessel. The removal processes for U/sub 3/O/sub 8/, Fe/sub 2/O/sub 3/, and U/sub 3/O/sub 8/ + Fe/sub 2/O/sub 3/ aerosols are enhanced in a steam-air atmosphere. Steam-air seems to have little effect on removal of concrete aerosol from the vessel atmosphere. A steam-air environment causes a change in aerosol shape from chain-agglomerate to basically spherical for U/sub 3/O/sub 8/, Fe/sub 2/O/sub 3/, and U/sub 3/O/sub 8/ + Fe/sub 2/O/sub 3/ aerosol; for concrete the change in aerosol shape is from chain-agglomerate to partially spherical. The mass ratio of the individual components of a multi-component aerosol seems to have an observable influence on the resultant behavior of these aerosols in steam. The enhanced rate of removal of the U/sub 3/O/sub 8/, the Fe/sub 2/O/sub 3/, and the mixed U/sub 3/O/sub 8/ + Fe/sub 2/O/sub 3/ aerosols from the atmosphere of the NSPP vessel by steam-air is probably caused by the change in aerosol shape and the condensation of steam on the aerosol surfaces combining to increase the effect of gravitational settling. The apparent lack of an effect by steam-air on the removal rate of concrete aerosol could result from a differing physical/chemical response of the surfaces of this aerosol to condensing steam.

Adams, R.E.

1984-01-01T23:59:59.000Z

276

Progress in the conversion activity of the Syrian MNSR  

Science Conference Proceedings (OSTI)

A Coordinate Research Proposal has been signed between the Atomic Energy Commission of Syria from one side and the IAEA from the other side in 2006 to achieve the conversion feasibility studies of the Syrian MNSR. Phase I has been already completed. The outcome of this phase was that the Syrian MNSR could be converted to use the LEU fuel, especially the UO{sub 2} pelletized fuel and cladded in Zircalloy-4. Two types of fuel rods were proposed: the first one is 5.1 mm rod OD and 4.1 mm meat OD, and the second one is 5.5 mm rod OD and 4.3 mm meat OD. It seems that these fuels can be utilized in the Syrian MNSR with 12.5% and 12.8% enrichments, respectively. The initial excess reactivities would be then 6.1964 mk, and 4.4412 mk, respectively, compared to the initial excess reactivity for the HEU which is {approx}3.8551 mk. The CRP is proceeding with the Phase II in which fuel selection and thermal-hydraulics calculations for the new fuel will be performed. (author)

Albarhoum, M. [Department of Nuclear Engineering, Atomic Energy Commission, P.O. Box 6091, Damascus (Syrian Arab Republic)

2008-07-15T23:59:59.000Z

277

IMPROVEMENT OF METHANE STORAGE IN ACTIVATED CARBON USING METHANE HYDRATE  

E-Print Network (OSTI)

differently based on the type and characteristics of the coal and where the coal bed is located. Equipment acre of each coal bed in the State. These ten factors include: · The present value per acre of a coal bed; · The coal price per million BTU; · The average royalty rate; · The BTU and sulfur adjustment

Paris-Sud XI, Université de

278

Sustainability in Research: Chemistry Researcher Title Respective Activities  

E-Print Network (OSTI)

Synthesis of Biodiesel Using Recyclable Catalyst One of the research areas in the Bennett lab focuses on the synthesis of biodiesel using recyclable catalysts. Dr. Bennett and her undergraduate students use organic bases as recyclable catalysts for the biodiesel reaction while adhering to the Principles of Green

Rose, Annkatrin

279

NF kappa B expression and matrix metalloproteinase activity in hypertension  

E-Print Network (OSTI)

299-306, 1995. Baldwin A.S. The NF-kB and IkB Proteins: Newof transcription factor NF-kB in mouse glomerular mesangialwere then labeled with anti-NF-kB p65 rabbit polyclonal

Wu, Kwan-I

2009-01-01T23:59:59.000Z

280

1 Regulation of Gas Marketing Activities in Mexico  

E-Print Network (OSTI)

We study linking the Mexican market for natural gas with the North American market and the implications of these links on efficient marketing of gas in Mexico. We argue that PEMEX should be permitted to enter into spot contracts or future contracts to sell gas, however, the price of gas should always be the net back price based on the Houston Ship Channel at the time of delivery. PEMEX should not be permitted to discount the price of gas from the Houston netback price even in a nondiscriminatory fashion. This arrangement is transparent, it is easy to enforce and does not eliminate any legitimate market options for any of the parties involved. PEMEX or consumers of gas can use the Houston market for hedging of speculative transactions.

Dagobert L. Brito; Juan Rosellon; Mexico D. F

1999-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "activities in cluding" 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

Carbon activation process for increased surface accessibility in electrochemical capacitors  

DOE Patents (OSTI)

A process for making carbon film or powder suitable for double capacitor electrodes having a capacitance of up to about 300 F/cm.sup.3 is disclosed. This is accomplished by treating in aqueous nitric acid for a period of about 5 to 15 minutes thin carbon films obtained by carbonizing carbon-containing polymeric material having a high degree of molecular directionality, such as polyimide film, then heating the treated carbon film in a non-oxidizing atmosphere at a non-graphitizing temperature of at least 350.degree. C. for about 20 minutes, and repeating alternately the nitric acid step and the heating step from 7 to 10 times. Capacitors made with this carbon may find uses ranging from electronic devices to electric vehicle applications.

Doughty, Daniel H. (Albuquerque, NM); Eisenmann, Erhard T. (Belpre, OH)

2001-01-01T23:59:59.000Z

282

Environmental-control-technology activities of the Department of Energy in FY 1979  

SciTech Connect

This report provides an annual identification and summarization of environmental control RD and D activities and associated funding conducted by DOE in conjunction with developing environmentally acceptable energy technologies. Environmental control technology is an integral part of the DOE energy technology R, D, and D effort. As the third in a series of annual reports on environmental control R, D, and D activities within DOE, this report may serve as a basis for evaluating program trends. The report presents background material that contributes to the capability to evaluate and assess the environmental control accomplishments, issues, gaps, and overlaps associated with energy development within DOE, in conjunction with other agencies, and in the private sector. A measure of the change in emphasis in the environmental control technology activities within DOE is also presented, indicating shifts, if any, in funding levels for each of the energy technologies. Total DOE FY 1979 budget outlay allocated to environmental control activities was $421,533,000, or 5.0% of the total FY 1979 DOE budget. This report summarizes the inputs received from the energy technology areas. These inputs were submitted in accordance with a description of environmental control related activities, which are those activities directed at research, development, and demonstration of processes, procedures, systems, subsystems, and strategies that directly or indirectly eliminate, minimize, or mitigate environmental impacts. 25 references, 10 figures, 40 tables.

1980-06-01T23:59:59.000Z

283

Lipids in NanotechnologyChapter 2 Surface Active Lipids as Encapsulation Agents and Delivery Vehicles  

Science Conference Proceedings (OSTI)

Lipids in Nanotechnology Chapter 2 Surface Active Lipids as Encapsulation Agents and Delivery Vehicles Food Science Health Nutrition Biochemistry Processing eChapters Food Science & Technology Health - Nutrition - Biochemistry Proce

284

CH Activation and Oxidation of Methane to Methanol in High Yield...  

NLE Websites -- All DOE Office Websites (Extended Search)

CH Activation and Oxidation of Methane to Methanol in High Yield with Novel Pt Complexes Speaker(s): Roy Periana Date: April 27, 1999 - 12:00pm Location: Bldg. 90 Seminar Host...

285

Lipid Oxidation PathwaysChapter 4 Kinetic Evaluation of the Antioxidant Activity in Lipid Oxidation  

Science Conference Proceedings (OSTI)

Lipid Oxidation Pathways Chapter 4 Kinetic Evaluation of the Antioxidant Activity in Lipid Oxidation Health Nutrition Biochemistry eChapters Health - Nutrition - Biochemistry Press Downloadable pdf of Chapter 4

286

Urbanization impact on temperature change in China with emphasis on land cover change and human activity  

Science Conference Proceedings (OSTI)

The impact of urbanization on temperature trends in China was investigated with emphasis on two aspects of urbanization, land cover change and human activity. A new station classification scheme was developed to incorporate these two aspects by ...

Yan Li; Lijuan Zhu; Xinyi Zhao; Shuangcheng Li; Yan Yan

287

Predicting Atlantic Seasonal Hurricane Activity 6–11 Months in Advance  

Science Conference Proceedings (OSTI)

A surprisingly strong long-range predictive signal exists for Atlantic-basin seasonal tropical cyclone activity. This predictive skill is related to two measures of West African rainfall in the prior year and to the phase of the stratospheric ...

William M. Gray; Christopher W. Landsea; Paul W. Mielke Jr.; Kenneth J. Berry

1992-09-01T23:59:59.000Z

288

Advanced Vehicle Testing Activity: Plug-in Hybrid ElectricVehicles...  

NLE Websites -- All DOE Office Websites (Extended Search)

VehiclesExtended Range Electric Vehicles Testing Reports to someone by E-mail Share Advanced Vehicle Testing Activity: Plug-in Hybrid Electric VehiclesExtended Range Electric...

289

Storm-Track Activity in IPCC AR4/CMIP3 Model Simulations  

Science Conference Proceedings (OSTI)

The climatological storm-track activity simulated by 17 Intergovernmental Panel on Climate Change Fourth Assessment Report (IPCC AR4)/phase 3 of the Coupled Model Intercomparison Project (CMIP3) models is compared to that in the interim ECMWF Re-...

Edmund K. M. Chang; Yanjuan Guo; Xiaoming Xia; Minghua Zheng

2013-01-01T23:59:59.000Z

290

Late Holocene hurricane activity and climate variability in the Northeastern Gulf of Mexico  

E-Print Network (OSTI)

Hurricane activity in the Northeastern Gulf of Mexico and its relationship to regional and large-scale climate variability during the Late Holocene is explored. A 4500-year record of hurricane-induced storm surges is ...

Lane, Daniel Philip

2011-01-01T23:59:59.000Z

291

Current Activities in the Scheduling and Resource Management Area of the Global Grid Forum  

Science Conference Proceedings (OSTI)

The Global Grid Forum's Scheduling and Resource Management Area is actively pursuing the standards that are needed for interoperability of Grid resource management systems. This includes work in defining architectures, language standards, APIs and protocols. ...

Bill Nitzberg; Jennifer M. Schopf

2002-07-01T23:59:59.000Z

292

Midwinter Suppression of the Pacific Storm Track Activity as Seen in Aircraft Observations  

Science Conference Proceedings (OSTI)

Unassimilated observational data, from the years 1979 to 1993, are analyzed and compared to the NCEP–NCAR reanalysis data to confirm the magnitude of the seasonal cycle in Pacific storm track activity. Such a comparison is necessary since recent ...

Edmund K. M. Chang

2003-06-01T23:59:59.000Z

293

Rain-Related Impacts on Selected Transportation Activities and Utility Services in the Chicago Area  

Science Conference Proceedings (OSTI)

An intensive meteorological study of summer precipitation in the Chicago area during 1976–78 furnished detailed data needed to perform a study of the impacts of rain on selected transportation-related activities and on certain utility services. ...

Jan Bertness

1980-05-01T23:59:59.000Z

294

Kirkendall Effect and Lattice Contraction in Nanocatalysts: A New Strategy to Enhance Sustainable Activity  

DOE Green Energy (OSTI)

Core-shell nanoparticles increasingly are found to be effective in enhancing catalytic performance through the favorable influence of the core materials on the active components at the surface. Yet, sustaining high activities under operating conditions often has proven challenging. Here we explain how differences in the components diffusivity affect the formation and stability of the core-shell and hollow nanostructures, which we ascribe to the Kirkendall effect. Using Ni nanoparticles as the templates, we fabricated compact and smooth Pt hollow nanocrystals that exhibit a sustained enhancement in Pt mass activity for oxygen reduction in acid fuel cells. This is achieved by the hollow-induced lattice contraction, high surface area per mass, and oxidation-resistant surface morphology - a new route for enhancing both the catalysts activity and durability. The results indicate challenges and opportunities brought by the nanoscale Kirkendall effect for designing, at the atomic level, nanostructures with a wide range of novel properties.

J Wang; C Ma; Y Choi; D Su; Y Zhu; P Liu; R Si; M vukmirovic; Y Zhang; R Adzic

2011-12-31T23:59:59.000Z

295

Spatial hole burning in actively mode-locked quantum cascade lasers  

E-Print Network (OSTI)

A theoretical study of active mode-locking in quantum cascade lasers including spatial hole-burning is presented. It is found that spatial hole-burning reduces the pulse duration at the expense of slight pulse instability ...

Kartner, Franz X.

296

U.S. Crude Oil and Natural Gas Active Well Service Rigs in ...  

U.S. Energy Information Administration (EIA)

U.S. Crude Oil and Natural Gas Active Well Service Rigs in operation (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9;

297

Overview of NETL In-House Vision 21 Activities  

DOE Green Energy (OSTI)

The Office of Science and Technology at the National Energy Technology Laboratory, conducts research in support of Department of Energy's Fossil Energy Program. The research is funded through a variety of programs with each program focusing on a particular aspect of fossil energy. Since the Vision 21 Concept is based on the Advanced Power System Programs (Integrated Gasification Combined Cycle, Pressurized Fluid Bed, HIPPS, Advanced Turbine Systems, and Fuel Cells) it is not surprising that much of the research supports the Vision 21 Concept. The research is classified and presented according to ''enabling technologies'' and ''supporting technologies'' as defined by the Vision 21 Program. Enabling technology include fuel flexible gasification, fuel flexible combustion, hydrogen separation from fuel gas, advanced combustion systems, circulating fluid bed technology, and fuel cells. Supporting technologies include development of advanced materials, computer simulations, computation al fluid dynamics modeling, and advanced environmental control. An overview of Vision 21 related research is described, emphasizing recent accomplishments and capabilities.

Wildman, David J.

2001-11-06T23:59:59.000Z

298

Results of mobile gamma scanning activities in Tonawanda, New York  

SciTech Connect

During the 1940s, the Linde Air Products Division of Union Carbide operated a plant in Tonawanda, New York, for the Manhattan Engineer District (MED) and the Atomic Energy Commission (AEC). Uranium production and some nickel processing were conducted at the site. It is the policy of the US Department of Energy (DOE) to verify that radiological conditions at such sites or facilities comply with current DOE guidelines. Guidelines for release and use of such sites have become more stringent as research has provided more information since previous cleanups. The Formerly Utilized Sites Remedial Action Program (FUSRAP) was established as part of that effort to confirm the closeout status of facilities under contract to agencies preceding DOE during early nuclear energy development. Under the FUSRAP program, the Linde site itself has been previously investigated to determine the extent of on-site radiological contamination. As a precaution to insure that no residual radioactive materials were transported off-site, the Department of Energy requested that ORNL survey the area in the vicinity of the Linde Plant, the waste water treatment facility on Tower Road, the Sheridan Park Fire Station (District 4), and the Tonawanda Landfill to assess whether any residual radioactive material could be detected. The survey was conducted the week of April 3, 1990. Results of analysis of soil samples from the Tonawanda Landfill revealed slightly elevated concentrations of {sup 238}U and {sup 226}Ra suggestive of residuals from former Linde Plant operations. Therefore, it is recommended that additional surveying of the landfill property and of Sheridan Creek from south of the Linde property to its confluence with the Niagara River be conducted. The survey should include the measurement of gamma radiation levels and radionuclide analysis of silt samples. 6 refs., 4 figs., 1 tab.

Cottrell, W.D.; Witt, D.A.; Rodriguez, R.E.; Carrier, R.F.

1990-12-01T23:59:59.000Z

299

A CATALOG OF ROTATION AND ACTIVITY IN EARLY-M STARS  

Science Conference Proceedings (OSTI)

We present a catalog of rotation and chromospheric activity in a sample of 334 M dwarfs of spectral types M0-M4.5 populating the parameter space around the boundary to full convection. We obtain high-resolution optical spectra for 206 targets and determine projected rotational velocity, vsin i, and H{alpha} emission. The data are combined with measurements of vsin i in field stars of the same spectral type from the literature. Our sample adds 157 new rotation measurements to the existing literature and almost doubles the sample of available vsin i. The final sample provides a statistically meaningful picture of rotation and activity at the transition to full convection in the solar neighborhood. We confirm a steep rise in the fraction of active stars at the transition to full convection known from earlier work. In addition, we see a clear rise in rotational velocity in the same stars. In very few stars, no chromospheric activity but a detection of rotational broadening is reported. We argue that all of them are probably spurious detections; we conclude that in our sample all significantly rotating stars are active, and all active stars are significantly rotating. The rotation-activity relation is valid in partially and in fully convective stars. Thus, we do not observe any evidence for a transition from a rotationally dominated dynamo in partially convective stars to a rotation-independent turbulent dynamo in fully convective stars; turbulent dynamos in fully convective stars of spectral types around M4 are still driven by rotation. Finally, we compare projected rotational velocities of 33 stars to rotational periods derived from photometry in the literature and determine inclinations for a few of them.

Reiners, Ansgar; Joshi, Nandan [Institut fuer Astrophysik Goettingen, Physik Fakultaet, Friedrich-Hund-Platz 1, D-37077 Goettingen (Germany); Goldman, Bertrand, E-mail: Ansgar.Reiners@phys.uni-goettingen.de [Max-Planck-Institut fuer Astronomy, Heidelberg (Germany)

2012-04-15T23:59:59.000Z

300

Activity of the kinesin spindle protein inhibitor ispinesib (SB-715992) in models of breast cancer  

Science Conference Proceedings (OSTI)

Ispinesib (SB-715992) is a potent inhibitor of kinesin spindle protein (KSP), a kinesin motor protein essential for the formation of a bipolar mitotic spindle and cell cycle progression through mitosis. Clinical studies of ispinesib have demonstrated a 9% response rate in patients with locally advanced or metastatic breast cancer, and a favorable safety profile without significant neurotoxicities, gastrointestinal toxicities or hair loss. To better understand the potential of ispinesib in the treatment of breast cancer we explored the activity of ispinesib alone and in combination several therapies approved for the treatment of breast cancer. We measured the ispinesib sensitivity and pharmacodynamic response of breast cancer cell lines representative of various subtypes in vitro and as xenografts in vivo, and tested the ability of ispinesib to enhance the anti-tumor activity of approved therapies. In vitro, ispinesib displayed broad anti-proliferative activity against a panel of 53 breast cell-lines. In vivo, ispinesib produced regressions in each of five breast cancer models, and tumor free survivors in three of these models. The effects of ispinesib treatment on pharmacodynamic markers of mitosis and apoptosis were examined in vitro and in vivo, revealing a greater increase in both mitotic and apoptotic markers in the MDA-MB-468 model than in the less sensitive BT-474 model. In vivo, ispinesib enhanced the anti-tumor activity of trastuzumab, lapatinib, doxorubicin, and capecitabine, and exhibited activity comparable to paclitaxel and ixabepilone. These findings support further clinical exploration of KSP inhibitors for the treatment of breast cancer.

Purcell, James W; Davis, Jefferson; Reddy, Mamatha; Martin, Shamra; Samayoa, Kimberly; Vo, Hung; Thomsen, Karen; Bean, Peter; Kuo, Wen Lin; Ziyad, Safiyyah; Billig, Jessica; Feiler, Heidi S; Gray, Joe W; Wood, Kenneth W; Cases, Sylvaine

2009-06-10T23:59:59.000Z

Note: This page contains sample records for the topic "activities in cluding" 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

Criterion validity of a 10-category scale for ranking physical activity in Norwegian women  

E-Print Network (OSTI)

of certain types of activities such as cycling and carrying heavy loads. Heart rate monitoring is limited when measuring low-intensity activity due to stronger relative influence of stress and relies more heavily on individual calibration [15]. A combined... , Kerrison N, Langenberg C, Arriola L, Clavel-Chapelon F, Barricart A, Boeing H, Gonzales C, Kaaks R, Key T, Khaw KT, May A, Nilsson P, Norat T, Overvad K, Palli D, Panico S, Quiros R, et al: Validity of a short questionnaire to assess physical activity in 10...

Borch, Kristin B; Ekelund, Ulf; Brage, Soren; Lund, Eiliv

2012-01-19T23:59:59.000Z

302

Detecting Source Regions of Wave Activities in the Tropical Atmosphere by Applying Beamforming to Interpolated Data Grids  

Science Conference Proceedings (OSTI)

Wave activities are primary sources of weather disturbances and cyclones in the tropical atmosphere. One such activity is the intraseasonal variations in wind, convection, and precipitation in the tropical Indian and western tropical Pacific ...

Qi Hu; Zhaoning Liang; Michael W. Hoffman

2009-02-01T23:59:59.000Z

303

MAGNETIC ENERGY AND HELICITY IN TWO EMERGING ACTIVE REGIONS IN THE SUN  

SciTech Connect

The magnetic energy and relative magnetic helicity in two emerging solar active regions, AR 11072 and AR 11158, are studied. They are computed by integrating over time the energy and relative helicity fluxes across the photosphere. The fluxes consist of two components: one from photospheric tangential flows that shear and braid field lines (shear term), the other from normal flows that advect magnetic flux into the corona (emergence term). For these active regions: (1) relative magnetic helicity in the active-region corona is mainly contributed by the shear term, (2) helicity fluxes from the emergence and the shear terms have the same sign, (3) magnetic energy in the corona (including both potential energy and free energy) is mainly contributed by the emergence term, and (4) energy fluxes from the emergence term and the shear term evolved consistently in phase during the entire flux emergence course. We also examine the apparent tangential velocity derived by tracking field-line footpoints using a simple tracking method. It is found that this velocity is more consistent with tangential plasma velocity than with the flux transport velocity, which agrees with the conclusion by Schuck.

Liu, Y. [W. W. Hansen Experimental Physics Laboratory, Stanford University, Stanford, CA 94305-4085 (United States); Schuck, P. W. [Space Weather Laboratory, Code 674, Heliophysics Science Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States)

2012-12-20T23:59:59.000Z

304

Magnetic Complexity in Eruptive Solar Active Regions and Associated Eruption Parameters  

E-Print Network (OSTI)

Using an efficient magnetic complexity index in the active-region solar photosphere, we quantify the preflare strength of the photospheric magnetic polarity inversion lines in 23 eruptive active regions with flare/CME/ICME events tracked all the way from the Sun to the Earth. We find that active regions with more intense polarity inversion lines host statistically stronger flares and faster, more impulsively accelerated, CMEs. No significant correlation is found between the strength of the inversion lines and the flare soft X-ray rise times, the ICME transit times, and the peak $Dst indices of the induced geomagnetic storms. Corroborating these and previous results, we speculate on a possible interpretation for the connection between source active regions, flares, and CMEs. Further work is needed to validate this concept and uncover its physical details.

Georgoulis, M K

2007-01-01T23:59:59.000Z

305

Magnetic Complexity in Eruptive Solar Active Regions and Associated Eruption Parameters  

E-Print Network (OSTI)

Using an efficient magnetic complexity index in the active-region solar photosphere, we quantify the preflare strength of the photospheric magnetic polarity inversion lines in 23 eruptive active regions with flare/CME/ICME events tracked all the way from the Sun to the Earth. We find that active regions with more intense polarity inversion lines host statistically stronger flares and faster, more impulsively accelerated, CMEs. No significant correlation is found between the strength of the inversion lines and the flare soft X-ray rise times, the ICME transit times, and the peak $Dst indices of the induced geomagnetic storms. Corroborating these and previous results, we speculate on a possible interpretation for the connection between source active regions, flares, and CMEs. Further work is needed to validate this concept and uncover its physical details.

M. K. Georgoulis

2007-12-03T23:59:59.000Z

306

Low energy electron beam induced vacancy activation in GaN  

Science Conference Proceedings (OSTI)

Experimental evidence on low energy electron beam induced point defect activation in GaN grown by metal-organic vapor phase epitaxy (MOVPE) is presented. The GaN samples are irradiated with a 5-20 keV electron beam of a scanning electron microscope and investigated by photoluminescence and positron annihilation spectroscopy measurements. The degradation of the band-to-band luminescence of the irradiated GaN films is associated with the activation of point defects. The activated defects were identified as in-grown Ga-vacancies. We propose that MOVPE-GaN contains a significant concentration of passive V{sub Ga}-H{sub n} complexes that can be activated by H removal during low energy electron irradiation.

Nykaenen, H.; Suihkonen, S.; Sopanen, M. [Department of Micro- and Nanosciences, Aalto University, P.O. Box 13500, FI-00076 Aalto (Finland); Kilanski, L. [Department of Applied Physics, Aalto University, P.O. Box 11100, FI-00076 Aalto (Finland); Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/56, 02-668 Warsaw (Poland); Tuomisto, F. [Department of Applied Physics, Aalto University, P.O. Box 11100, FI-00076 Aalto (Finland)

2012-03-19T23:59:59.000Z

307

ACTIVE CAPPING TECHNOLOGY - NEW APPROACHES FOR IN SITU REMEDIATION OF CONTAMINATED SEDIMENTS  

SciTech Connect

This study evaluated pilot-scale active caps composed of apatite, organoclay, biopolymers, and sand for the remediation of metal-contaminated sediments. The active caps were constructed in Steel Creek, at the Savannah River Site near Aiken, South Carolina. Monitoring was conducted for 12 months. Effectiveness of the caps was based on an evaluation of contaminant bioavailability, resistance to erosion, and impacts on benthic organisms. Active caps lowered metal bioavailability in the sediment during the one-year test period. Biopolymers reduced sediment suspension during cap construction, increased the pool of carbon, and lowered the release of metals. This field validation showed that active caps can effectively treat contaminants by changing their speciation, and that caps can be constructed to include more than one type of amendment to achieve multiple goals.

Knox, A.; Paller, M.; Roberts, J.

2012-02-13T23:59:59.000Z

308

Geopressured-geothermal well activities in Louisiana. Annual report, 1 January 1991--31 December 1991  

DOE Green Energy (OSTI)

Since September 1978, microseismic networks have operated continuously around US Department of Energy (DOE) geopressured-geothermal well sites to monitor any microearthquake activity in the well vicinity. Microseismic monitoring is necessary before flow testing at a well site to establish the level of local background seismicity. Once flow testing has begun, well development may affect ground elevations and/or may activate growth faults, which are characteristic of the coastal region of southern Louisiana and southeastern Texas where these geopressured-geothermal wells are located. The microseismic networks are designed to detest small-scale local earthquakes indicative of such fault activation. Even after flow testing has ceased, monitoring continues to assess any microearthquake activity delayed by the time dependence of stress migration within the earth. Current monitoring shows no microseismicity in the geopressured-geothermal prospect areas before, during, or after flow testing.

John, C.J.

1992-10-01T23:59:59.000Z

309

Activity report  

SciTech Connect

This report is aimed to show the author's activities to support the LDRD. The title is 'Investigation of the Double-C Behavior in the Pu-Ga Time-Temperature-Transformation Diagram' The sections are: (1) Sample Holder Test; (2) Calculation of x-ray diffraction patterns; (3) Literature search and preparing publications; (4) Tasks Required for APS Experiments; and (5) Communications.

Yu, S W

2008-08-11T23:59:59.000Z

310

Sucrose-mediated transcriptional regulation of sucrose symporter activity in the phloem.  

DOE Green Energy (OSTI)

This project was based on our discovery that sucrose acts as a signaling molecule that regulates the activity of a proton-sucrose symporter in sugar beet leaf tissue. A major objective here was determining how sucrose transporter activity is being regulated. When sucrose accumulates in the phloem sucrose transport activity drops dramatically. Western blots of plasma membrane proteins isolated from sucrose treated leaves showed that the loss of sucrose transport activity was proportional to a decline in symporter abundance, demonstrating that sucrose transport is regulated by changes in the amount of BvSUT1 protein. BvSUT1 transcript levels decreased in parallel with the loss of sucrose transport activity. Nuclear run-on experiments demonstrated that BvSUT1 gene transcription was repressed significantly in nuclei from leaves fed 100 mM exogenous sucrose, showing that sucrose-dependent modulation of BvSUT1 mRNA levels is mediated by changes in transcription. To identify which secondary messenger systems might be involved in regulating symporter activity, we used a variety of pharmacological agents to probe for a role of calcium or protein phosphorylation in sucrose signaling. In a detailed analysis, only okadaic acid altered sucrose transport activity. These results suggest a protein phosphatase is involved. We hypothesized that protein kinase inhibitors would have a neutral affect or increase symporter transcription. Transpirational feeding of the protein kinase inhibitor staurosporine had no impact on sucrose transport while calphostin C, an inhibitor of protein kinase C, caused a 60% increase. These data provided good evidence that protein phosphorylation plays a central role in regulating sucrose symporter expression and sucrose transport activity. To determine whether protein phosphorylation is involved in sucrose regulation of proton-sucrose symporter activity, we pre-fed leaves with staurosporine for 4 h and then fed the treated leaves water or 100 mM sucrose for an additional 20 h. Sucrose transport activity was higher than the water control in both staurosporine/water- and staurosporine/sucrose-fed leaves. In contrast, sucrose transport activity was only 40% of the water control in sucrose-fed leaves. Taken together, these results showed that a phosphorylation-dependent signal transduction pathway is involved in sucrose-mediated regulation of BvSUT1 gene expression, sucrose transport activity, and ultimately phloem loading. Publications originating from this work: Vaughn MW, GN. Harrington, and DR Bush 2002. Sucrose-mediated transcriptional regulation of sucrose symporter activity in the phloem. Proc. Natl. Acad. Sci. USA 99:10876-10880 Ransom-Hodgkins W, MW Vaughn, and DR Bush 2003. Protein phosphorylation mediates a key step in sucrose-regulation of the expression and transport activity of a beet proton-sucrose symporter. Planta 217:483-489 Harrington GN and Bush DR 2003. The bifunctional role of hexokinase in metabolism and glucose signaling. Plant Cell 15: 2493-2496

Matt Vaughn Greg Harrington Daniel R Bush

2002-08-06T23:59:59.000Z

311

Method for improved selectivity in photo-activation of molecular agents  

DOE Patents (OSTI)

A method for the treatment of a particular volume of plant or animal tissue comprising the steps of treating the plant or animal tissue with at least one photo-active molecular agent, wherein the particular volume of the plant or animal tissue retains at least a portion of the at least one photo-active molecular agent, and then treating the particular volume of the plant or animal tissue with light sufficient to promote a simultaneous two-photon excitation of at least one of the at least one photo-active molecular agent retained in the particular volume of the plant or animal tissue, wherein the at least one photo-active molecular agent becomes active in the particular volume of the plant or animal tissue. There is also disclosed a method for the treatment of cancer in plant or animal tissue and a method for producing at least one photo-activated molecular agent in a particular volume of a material.

Fisher, Walter G. (Knoxville, TN); Wachter, Eric A. (Oak Ridge, TN); Dees, H. Craig (Knoxville, TN)

1999-01-01T23:59:59.000Z

312

Method for improved selectivity in photo-activation of molecular agents  

DOE Patents (OSTI)

A method for the treatment of a particular volume of plant or animal tissue comprising the steps of treating the plant or animal tissue with at least one photo-active molecular agent, wherein the particular volume of the plant or animal tissue retains at least a portion of the at least one photo-active molecular agent, and then treating the particular volume of the plant or animal tissue with light sufficient to promote a simultaneous two-photon excitation of at least one of the at least one photo-active molecular agent retained in the particular volume of the plant or animal tissue, wherein the at least one photo-active molecular agent becomes active in the particular volume of the plant or animal tissue. There is also disclosed a method for the treatment of cancer in plant or animal tissue and a method for producing at least one photo-activated molecular agent in a particular volume of a material.

Fisher, Walter G. (Knoxville, TN); Wachter, Eric A. (Oak Ridge, TN); Dees, H. Craig (Knoxville, TN)

1998-01-01T23:59:59.000Z

313

Method for improved selectivity in photo-activation of molecular agents  

DOE Patents (OSTI)

A method for the treatment of a particular volume of plant or animal tissue comprising the steps of treating the plant or animal tissue with at least one photo-active molecular agent, wherein the particular volume of the plant or animal tissue retains at least a portion of the at least one photo-active molecular agent, and then treating the particular volume of the plant or animal tissue with light sufficient to promote a simultaneous two-photon excitation of at least one of the at least one photo-active molecular agent retained in the particular volume of the plant or animal tissue, wherein the at least one photo-active molecular agent becomes active in the particular volume of the plant or animal tissue. There is also disclosed a method for the treatment of cancer in plant or animal tissue and a method for producing at least one photo-activated molecular agent in a particular volume of a material. 23 figs.

Fisher, W.G.; Wachter, E.A.; Dees, H.C.

1998-11-03T23:59:59.000Z

314

The correlation of 27 day period solar activity and daily maximum temperature in continental Australia  

E-Print Network (OSTI)

We report the first observation of a 27 day period component in daily maximum temperature recorded at widely spaced locations in Australia. The 27 day component, extracted by band pass filtering, is correlated with the variation of daily solar radio flux during years close to solar minimum. We demonstrate that the correlation is related to the emergence of regions of solar activity on the Sun separated, temporally, from the emergence of other active regions. In this situation, which occurs only near solar minimum, the observed 27 day variation of temperature can be in phase or out of phase with the 27 day variation of solar activity. During solar maximum correlation of temperature and solar activity is much less defined. The amplitude of the 27 day temperature response to solar activity is large, at times as high as 6 degrees C, and much larger than the well documented temperature response to the 11 year cycle of solar activity. We demonstrate that the 27 day temperature response is localised to the Australia...

Edmonds, Ian

2013-01-01T23:59:59.000Z

315

Relation Between the Adsorbed Quantity and the Immersion Enthalpy in Catechol Aqueous Solutions on Activated Carbons  

E-Print Network (OSTI)

Abstract: An activated carbon, Carbochem TM —PS230, was modified by chemical and thermal treatment in flow of H2, in order to evaluate the influence of the activated carbon chemical characteristics in the adsorption of the catechol. The catechol adsorption in aqueous solution was studied along with the effect of the pH solution in the adsorption process of modified activated carbons and the variation of immersion enthalpy of activated carbons in the aqueous solutions of catechol. The interaction solid-solution is characterized by adsorption isotherms analysis, at 298 K and pH 7, 9 and 11 in order to evaluate the adsorption value above and below that of the catechol pKa. The adsorption capacity of carbons increases when the solution pH decreases. The retained amount increases slightly in the reduced carbon to maximum adsorption pH and diminishes in the oxidized carbon. Similar conclusions are obtained from the immersion enthalpies, whose values increase with the solute quantity retained. In granular activated carbon (CAG), the immersion enthalpies obtained are between 21.5 and 45.7 J·g ?1 for catechol aqueous solutions in a range of 20 at 1500 mg·L ?1.

Juan Carlos Moreno-piraján; Diego Blanco; Liliana Giraldo

2011-01-01T23:59:59.000Z

316

Study of the Periodicities of Lightning Activity in Three Main Thunderstorm Centers Based on Schumann Resonance Measurements  

Science Conference Proceedings (OSTI)

Time variations of lightning activity in the three main tropical thunderstorm centers located in the Maritime Continent (Pakistan, India, Southeast Asia, Indonesia, and Australia), Africa, and the Americas are analyzed using a lightning activity ...

Zenon Nieckarz; Stanis?aw Zi?ba; Andrzej Ku?ak; Adam Michalec

2009-12-01T23:59:59.000Z

317

Safety basis for selected activities in single-shell tanks with flammable gas concerns. Revision 1  

DOE Green Energy (OSTI)

This is full revision to Revision 0 of this report. The purpose of this report is to provide a summary of analyses done to support activities performed for single-shell tanks. These activities are encompassed by the flammable gas Unreviewed Safety Question (USQ). The basic controls required to perform these activities involve the identification, elimination and/or control of ignition sources and monitoring for flammable gases. Controls are implemented through the Interim Safety Basis (ISB), IOSRs, and OSDs. Since this report only provides a historical compendium of issues and activities, it is not to be used as a basis to perform USQ screenings and evaluations. Furthermore, these analyses and others in process will be used as the basis for developing the Flammable Gas Topical Report for the ISB Upgrade.

Schlosser, R.L.

1996-02-05T23:59:59.000Z

318

The Nature of the Activity in Hickson Compact Groups of Galaxies  

E-Print Network (OSTI)

We present the results of the spectral classification of the 82 brightest galaxies in a sample of 17 compact groups. We verify that the AGNs are preferentially located in the most early-type and luminous galaxies of the groups, as is usually observed in the field. But these AGNs also appear to be systematically concentrated towards the central parts of the groups. Our observations suggest a correlation between activity types, morphologies and densities of galaxies in the compact groups. This is consistent with a scenario in which galaxies of compact groups evolve by interacting with their environment and are currently in a quiet phase of their activity

Roger Coziol; André L. B. Ribeiro; Reinaldo R. de Carvalho; Hugo V. Capelato

1997-09-10T23:59:59.000Z

319

Localized Bumps of Activity Sustained by Inhibition in a Two-Layer Thalamic Network  

E-Print Network (OSTI)

. Based on head direction experiments in rats, the existence of localized bumps of thalamic activity has been proposed. We computationally demonstrate the existence of a novel class of localized bump solutions in a two-layer conductancebased thalamic network and analyze the mechanisms behind these stable patterns. In contrast to previous models of bump activity, here inhibition plays a crucial role in initially spreading neuronal ring and in subsequently sustaining it. In our model, we incorporate local strong, fast GABAA inhibition and diuse weak, slow GABAB inhibition, based on previous biophysical experiments. These forms of inhibition contribute in dierent, yet complementary, ways to the observed pattern formation. Keywords: localized activity, head direction cells, thalamus, conductance-based model, synaptic coupling Abbreviations: GABA { -aminobutyric acid; HD { head direction; PoS { postsubiculum; ATN { anterior thalamic nuclei; AD { anterior dorsal thalamic nucleus; TC { t...

Jonathan Rubin; David Terman; Carson Chow

2001-01-01T23:59:59.000Z

320

Activities of key metabolic enzymes in the heater organs of scombroid fishes  

E-Print Network (OSTI)

Maximal in vitro activities of key metabolic enzymes were measured in brain and eye heaters of five species of scombroid fishes. Istiophorid billfishes (blue marlin, striped marlin and Mediterranean spearfish), xiphiid billfishes (Pacific and Mediterranean stocks) and a scombrid fish (butterfly mackerel) were included in the analysis. Our main objectives were (1) to assess the maximum possible substrate flux in heater tissue, and (2) to determine what metabolic substrates could fuel heat production. Heater tissue of all scombroids examined showed extremely high oxidative capacity. Activities of citrate synthase, a commonly measured index of oxidative metabolism, included the highest value ever reported for vertebrate tissue. In most billfishes, citrate synthase activities were similar to or higher than those found for mammalian cardiac and avian flight muscle. Marker enzymes for aerobic carbohydrate metabolism (hexokinase) and fatty acid metabolism (carnitine palmitoyltransferase and 3-hydroxyacyl-CoA dehydrogenase) also displayed extraordinarily high activities. Activities of carnitine palmitoyltransferase measured in heater organs were among the highest reported for vertebrates. These results indicate that heat production could be fueled aerobically by either lipid or carbohydrate metabolism. Inter- and intraspecifically, heater organs of fishes from the colder Mediterranean waters had a higher aerobic capacity and, hence, a greater heat-generating potential, than fishes from the warmer waters of the Pacific. This difference may be attributed to different thermal environments or it may result from allometry, since fishes caught in the Mediterranean were considerably smaller than those caught in the Pacific.

Alexa Tullis; Barbara A. Block; Bruce; D. Sidell

1991-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "activities in cluding" 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

Laboratory Activities  

Science Conference Proceedings (OSTI)

This chapter summarizes the laboratory activities performed by PNNL’s Vadose Zone Characterization Project in support of the Tank Farm Vadose Zone Program, led by CH2M HILL Hanford Group, Inc. The results of these studies are contained in numerous reports (Lindenmeier et al. 2002; Serne et al. 2002a, 2002b, 2002c, 2002d, 2002e; Lindenmeier et al. 2003; Serne et al. 2004a, 2004b; Brown et al. 2005, 2006a, 2007; Serne et al. 2007) and have generated much of the data reported in Chapter 22 (Geochemistry-Contaminant Movement), Appendix G (Geochemistry-Contaminant Movement), and Cantrell et al. (2007, SST WMA Geochemistry Data Package – in preparation). Sediment samples and characterization results from PNNL’s Vadose Zone Characterization Project are also shared with other science and technology (S&T) research projects, such as those summarized in Chapter 12 (Associated Science Activities).

Brown, Christopher F.; Serne, R. Jeffrey

2008-01-17T23:59:59.000Z

322

An overview of the ENEA activities in the field of coupled codes NPP simulation  

SciTech Connect

In the framework of the nuclear research activities in the fields of safety, training and education, ENEA (the Italian National Agency for New Technologies, Energy and the Sustainable Development) is in charge of defining and pursuing all the necessary steps for the development of a NPP engineering simulator at the 'Casaccia' Research Center near Rome. A summary of the activities in the field of the nuclear power plants simulation by coupled codes is here presented with the long term strategy for the engineering simulator development. Specifically, results from the participation in international benchmarking activities like the OECD/NEA 'Kalinin-3' benchmark and the 'AER-DYN-002' benchmark, together with simulations of relevant events like the Fukushima accident, are here reported. The ultimate goal of such activities performed using state-of-the-art technology is the re-establishment of top level competencies in the NPP simulation field in order to facilitate the development of Enhanced Engineering Simulators and to upgrade competencies for supporting national energy strategy decisions, the nuclear national safety authority, and the R and D activities on NPP designs. (authors)

Parisi, C.; Negrenti, E.; Sepielli, M. [ENEA Casaccia Research Center, Santa Maria di Galeria, 00123, Rome (Italy); Del Nevo, A. [ENEA Brasimone Research Center, Camugnano, 40032 (Italy)

2012-07-01T23:59:59.000Z

323

EFFECTS OF X-IRRADIATION OF SPONTANEOUS AND EVOKED BRAIN ELECTRICAL ACTIVITY IN CATS  

SciTech Connect

Specific alterations in spontaneous and evoked brain electrical activity were demonstrated in cats receiving 400 or 200 r of WBR or 400 r localized to the head or body. Results obtained in unrestrained cats with electrodes in the cortex and subcortex are reported. (C.H.)

Gangloff, H.; Haley, T.J.

1960-06-01T23:59:59.000Z

324

A Code for Analyzing Coolant and Offgas Activity in a Light Water Nuclear Reactor: Computer Manual  

Science Conference Proceedings (OSTI)

The CHIRON code meets the nuclear industry's need for a model that can estimate the number of failed fuel rods in the nuclear reactor cores of operating BWRs and PWRs. This PC-based tool -- now available in WINDOWS format -- provides this estimate by using coolant and/or offgas activity measurements. The WINDOWS version adds significant flexibility in terms of database capabilities and the code's use as a general activity release management tool. This user's manual provides a complete tutorial on the ins...

1998-06-19T23:59:59.000Z

325

A humanized anti-M2 scFv shows protective in vitro activity against influenza  

SciTech Connect

M2 is one of the most conserved influenza proteins, and has been widely prospected as a potential universal vaccine target, with protection predominantly mediated by antibodies. In this paper we describe the creation of a humanized single chain Fv from 14C2, a potent monoclonal antibody against M2. We show that the humanized scFv demonstrates similar activity to the parental mAb: it is able to recognize M2 in its native context on cell surfaces and is able to show protective in vitro activity against influenza, and so represents a potential lead antibody candidate for universal prophylactic or therapeutic intervention in influenza.

Bradbury, Andrew M [Los Alamos National Laboratory; Velappan, Nileena [Los Alamos National Laboratory; Schmidt, Jurgen G [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

326

The effect of angiotensin 1-7 on tyrosine kinases activity in rat anterior pituitary  

SciTech Connect

Angiotensin 1-7 (Ang 1-7) is a peptide originated from Ang II. It is known that in vessels Ang 1-7 shows opposite effects to Ang II. Ang 1-7 can modify processes of proliferation. However, Ang 1-7 action in pituitary gland cells was never studied. Moreover, the specific binding sites for Ang 1-7 are still unknown. The aim of this study was to examine the effects of Ang 1-7 on tyrosine kinases (PTKs) activity in the anterior pituitary. The reaction of phosphorylation was carrying out in presence of different concentration of Ang 1-7 and losartan (antagonist of AT1 receptor) and PD123319 (antagonist of AT2). Our results show that Ang 1-7 inhibited activity of PTK to 60% of basic activity. Losartan did not change the Ang 1-7-induced changes in PTKs activity. The presence of PD123319 together with Ang 1-7 caused stronger inhibition PTKs activity than Ang 1-7 alone. These observations suggest that Ang 1-7 binds to the novel, unknown, specific for this peptide receptor.

Rebas, Elzbieta [Department of Molecular Neurochemistry, Medical University of Lodz (Poland)]. E-mail: elkar@zdn.am.lodz.pl; Zabczynska, Joanna [Department of Student, Medical University of Lodz (Poland); Lachowicz, Agnieszka [Department of Comparative Endocrinology, Medical University of Lodz (Poland)

2006-09-01T23:59:59.000Z

327

Plasma Semicarbazide-Sensitive Amine Oxidase Activity in Type I and II Alcoholics  

E-Print Network (OSTI)

Semicarbazide-sensitive amine oxidase (SSAO) which catalysis the deamination of primary amines is involved in vascular endothelial or tissue damage through the formation of reactive aldehydes, hydrogen peroxide and ammonia from endogenous substrates. In the present study, plasma SSAO activity, plasma and erythrocyte lipid peroxidation status, glutathione levels and the correlation between the plasma SSAO activity and lipid peroxidation were determined to clarify the mechanism of liver injury related to the oxidative stress in early- and late-onset (Type I and II) alcoholic subtypes. Plasma SSAO activity and, plasma and erythrocyte malondialdehyde (MDA) levels as the indicators of lipid peroxidation status of alcoholics were found to be significantly higher than those of the control group. Increased plasma SSAO activity was strongly correlated with the elevated plasma and erythrocyte MDA levels and decreased reduced/oxidized glutathione (GSH/GSSG) ratio in alcoholics suggesting that enhanced plasma SSAO activity might contribute to the production of reactive oxygen species (ROS) detected in the liver of the alcoholics.

Gülberk Uçar; Ba?aran Demir; Yaz??ma Adresi

2003-01-01T23:59:59.000Z

328

The effect of progressive hypoxia on swimming activity and schooling in Atlantic herring  

E-Print Network (OSTI)

xia occurs and the magnitude of the response are related to the fish's preferred speed prior to severe hypoxia, it is suggested that such a preferred speed should be measured in experiments testing the eect of hypoxia on fish behaviour. # 2000 The Fisheries Society of the British Isles Key words: hypoxia; behaviour; swimming; swimming activity; swimming speed; schooling; herring; Clupea harengus. INTRODUCTION Oxygen availability is one of the main factors aecting the swimming activity of fish (Randall, 1970; Bryan et al., 1990). The occurrence of hypoxic events in coastal environments has increased in recent years, due to the continual development of human activities along the coasts (Orel et al., 1986; Baden et al., 1990). Although hypoxic conditions are found usually in coastal areas, both benthic and pelagic fish may be subject to hypoxia at certain times of their lives or during certain seasons. For instance, herring Clupea harengus L., a pelagic species, may experience hy

P. Domenici; J. F. Steffensen; R. S. Batty

2000-01-01T23:59:59.000Z

329

Statistical data mining of streaming motion data for activity and fall recognition in assistive environments  

Science Conference Proceedings (OSTI)

The analysis of human motion data is interesting in the context of activity recognition or emergency event detection, especially in the case of elderly or disabled people living independently in their homes. Several techniques have been proposed for ... Keywords: Cumulative sum (CUSUM) algorithm, Fall detection, Streaming motion data, Visual data

S. K. Tasoulis; C. N. Doukas; V. P. Plagianakos; I. Maglogiannis

2013-05-01T23:59:59.000Z

330

Dynamics of the orientation of active and passive scalars in two-dimensional turbulence  

E-Print Network (OSTI)

Dynamics of the orientation of active and passive scalars in two-dimensional turbulence G. Lapeyre orientations obtained in the adiabatic approximation by Lapeyre et al. Phys. Fluids 11, 3729 1999 and Klein et with the equilibrium orientation than the vorticity gradient does, while the opposite is true in effective

Lapeyre, Guillaume

331

CP-violating Phases in Active-Sterile Solar Neutrino Oscillations  

E-Print Network (OSTI)

Effects of CP-violating phases in active-sterile solar neutrino oscillations are discussed in a general scheme of 3+N_{s} mixing, without any constraint on the mixing between the three active and the N_{s} sterile neutrinos, assuming only a realistic hierarchy of neutrino mass-squared differences. A generalized Parke formula describing the neutrino oscillation probabilities inside the Sun is calculated. The validity of the analytical calculation and the probability variation due to the unknown CP-violating phases are illustrated with a numerical calculation of the evolution equation in the case of 3+1 neutrino mixing.

H. W. Long; Y. F. Li; C. Giunti

2013-04-08T23:59:59.000Z

332

A novel statistical time-series pattern based interval forecasting strategy for activity durations in workflow systems  

Science Conference Proceedings (OSTI)

Forecasting workflow activity durations is of great importance to support satisfactory QoS in workflow systems. Traditionally, a workflow system is often designed to facilitate the process automation in a specific application domain where activities ... Keywords: Activity duration, Interval forecasting, Statistical time series, Time-series patterns, Workflow system

Xiao Liu; Zhiwei Ni; Dong Yuan; Yuanchun Jiang; Zhangjun Wu; Jinjun Chen; Yun Yang

2011-03-01T23:59:59.000Z

333

Tunisia-Bringing a Range of Supported Mitigation Activities in Selected  

Open Energy Info (EERE)

Tunisia-Bringing a Range of Supported Mitigation Activities in Selected Tunisia-Bringing a Range of Supported Mitigation Activities in Selected Countries to the Next Level Jump to: navigation, search Name Tunisia-Bringing a Range of Supported Mitigation Activities in Selected Countries to the Next Level Agency/Company /Organization Energy Research Centre of the Netherlands (ECN), Ecofys Sector Climate Focus Area Renewable Energy, Agriculture, People and Policy Topics Low emission development planning, Policies/deployment programs Website http://www.ecn.nl/docs/library Program Start 2011 Program End 2014 Country Tunisia Northern Africa References ECN[1] Ecofys[2] Program Overview This project runs from March 2012 to December 2014, and is a collaboration between ECN Policy Studies and Ecofys Germany. The project aims to support

334

The Department of Energy (DOE) is actively involved in leading the  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

(DOE) is actively involved in leading the (DOE) is actively involved in leading the development of advanced applications and tools to more effectively operate the electricity delivery system by enabling advanced analysis, visualization, monitoring and alarming, and decision support capabilities for grid operators. These applications use-and greatly increase the value of-data coming from high-resolution electrical measuring devices known as phasor measurement units (PMUs), whose deployment is being facilitated by the North American SynchroPhasor Initiative. The advanced applications research and development activities of DOE and its industry partners are a key component of the success of American Recovery and Reinvestment Act (ARRA) programs. By the time the ARRA projects are completed in 2014, several of these applications are expected to be fully

335

Department of Energy Implementation Activities in the Case of a Lapse of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Department of Energy Implementation Activities in the Case of a Department of Energy Implementation Activities in the Case of a Lapse of Appropriations Department of Energy Implementation Activities in the Case of a Lapse of Appropriations September 27, 2013 - 2:45pm Addthis Editor's note: This plan was updated on October 2, 2013. Department of Energy Lapse of Appropriations Plan 1. How many employees are impacted by the DOE plan? Total number of employees at DOE before implementation: 13,814 Total number of employees retained under the plan: 937 excepted personnel and 11 PAS Total number of employees under the plan financed by other than annual appropriations: 3,106 Total number of employees, not otherwise exempt, to be retained to protect life and property: 937 Estimated time to complete the shutdown: DOE will be able to shutdown all

336

Department of Energy Implementation Activities in the Case of a Lapse of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Implementation Activities in the Case of a Implementation Activities in the Case of a Lapse of Appropriations Department of Energy Implementation Activities in the Case of a Lapse of Appropriations September 27, 2013 - 2:45pm Addthis Editor's note: This plan was updated on October 2, 2013. Department of Energy Lapse of Appropriations Plan 1. How many employees are impacted by the DOE plan? Total number of employees at DOE before implementation: 13,814 Total number of employees retained under the plan: 937 excepted personnel and 11 PAS Total number of employees under the plan financed by other than annual appropriations: 3,106 Total number of employees, not otherwise exempt, to be retained to protect life and property: 937 Estimated time to complete the shutdown: DOE will be able to shutdown all non-excepted Federal functions within a half day of exhaustion of available

337

Activation detector  

DOE Patents (OSTI)

A method of detecting an activator, the method including impinging with an activator a receptor material lacking a photoluminescent material and generating a by-product of a radioactive decay due to the activator impinging the receptor material. The method further including, generating light from the by-product via the Cherenkov effect and identifying a characteristic of the activator based on the light.

Bell, Zane William (Oak Ridge, TN); Boatner, Lynn Allen (Oak Ridge, TN)

2009-12-08T23:59:59.000Z

338

Energy Storage Activities in the United States Electricity Grid. May 2011  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Storage Activities in the United States Electricity Grid Storage Activities in the United States Electricity Grid Electricity Advisory Committee Energy Storage Technologies Subcommittee Members Ralph Masiello, Subcommittee Chair Senior Vice President, Transmission KEMA Honorable Lauren Azar Commissioner Wisconsin Public Utilities Commission Frederick Butler President & Chief Executive Officer Butler Advisory Services Richard Cowart Principal Regulatory Assistance Project and Chair, Electricity Advisory Committee Roger Duncan General Manager (Ret.) Austin Energy Robert Gramlich Senior Vice President, Public Policy American Wind Energy Association Brad Roberts Chairman Electricity Storage Association Honorable Tom Sloan Representative Kansas House of Representatives Wanda Reder Vice President

339

Rulemaking Activities to Risk-Inform Requirements in 10 CFR Part 50  

SciTech Connect

This paper presents the status of NRC activities to revise requirements in Title 10 of the Code of Federal Regulations (10 CFR Part 50) to make them more risk-informed. The activities include proposed changes to treatment requirements (requirements such as quality assurance, testing, inspection, documentation that are imposed to add confidence in the capability of structures, systems and components (SSCs) to perform their intended functions) as well as changes to certain technical requirements. The technical requirements under consideration are those relating to combustible gas control and for emergency core cooling systems (including the evaluation models). (authors)

McKenna, Eileen M.; Reed, Timothy A. [U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001 (United States)

2002-07-01T23:59:59.000Z

340

High-Resolution Modeling to Assess Tropical Cyclone Activity in Future Climate Regimes  

SciTech Connect

Applied research is proposed with the following objectives: (i) to determine the most likely level of tropical cyclone intensity and frequency in future climate regimes, (ii) to provide a quantitative measure of uncertainty in these predictions, and (iii) to improve understanding of the linkage between tropical cyclones and the planetary-scale circulation. Current mesoscale weather forecasting models, such as the Weather Research and Forecasting (WRF) model, are capable of simulating the full intensity of tropical cyclones (TC) with realistic structures. However, in order to accurately represent both the primary and secondary circulations in these systems, model simulations must be configured with sufficient resolution to explicitly represent convection (omitting the convective parameterization scheme). Most previous numerical studies of TC activity at seasonal and longer time scales have not utilized such explicit convection (EC) model runs. Here, we propose to employ the moving nest capability of WRF to optimally represent TC activity on a seasonal scale using a downscaling approach. The statistical results of a suite of these high-resolution TC simulations will yield a realistic representation of TC intensity on a seasonal basis, while at the same time allowing analysis of the feedback that TCs exert on the larger-scale climate system. Experiments will be driven with analyzed lateral boundary conditions for several recent Atlantic seasons, spanning a range of activity levels and TC track patterns. Results of the ensemble of WRF simulations will then be compared to analyzed TC data in order to determine the extent to which this modeling setup can reproduce recent levels of TC activity. Next, the boundary conditions (sea-surface temperature, tropopause height, and thermal/moisture profiles) from the recent seasons will be altered in a manner consistent with various future GCM/RCM scenarios, but that preserves the large-scale shear and incipient disturbance activity. This will allow (i) a direct comparison of future TC activity that could be expected for an active or inactive season in an altered climate regime, and (ii) a measure of the level of uncertainty and variability in TC activity resulting from different carbon emission scenarios.

Lackmann, Gary

2013-06-10T23:59:59.000Z

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341

Chaotic mean wind in turbulent thermal convection and long-term correlations in solar activity  

E-Print Network (OSTI)

It is shown that correlation function of the mean wind velocity in a turbulent thermal convection (Rayleigh number $Ra \\sim 10^{11}$) exhibits exponential decay with a very long correlation time, while corresponding largest Lyapunov exponent is certainly positive. These results together with the reconstructed phase portrait indicate presence of a chaotic component in the examined mean wind. Telegraph approximation is also used to study relative contribution of the chaotic and stochastic components to the mean wind fluctuations and an equilibrium between these components has been studied. Since solar activity is based on the thermal convection processes, it is reasoned that the observed solar activity long-term correlations can be an imprint of the mean wind chaotic properties. In particular, correlation function of the daily sunspots number exhibits exponential decay with a very long correlation time and corresponding largest Lyapunov exponent is certainly positive, also relative contribution of the chaotic and stochastic components follows the same pattern as for the convection mean wind.

A. Bershadskii

2009-08-27T23:59:59.000Z

342

Synergistic functions of SII and p300 in productive activator-dependent transcription of chromatin templates  

E-Print Network (OSTI)

We have reconstituted a highly purified RNA polymerase II transcription system containing chromatin templates assembled with purified histones and assembly factors, the histone acetyltransferase p300, and components of the general transcription machinery that, by themselves, suffice for activated transcription (initiation and elongation) on DNA templates. We show that this system mediates activator-dependent initiation, but not productive elongation, on chromatin templates. We further report the purification of a chromatin transcription-enabling activity (CTEA) that, in a manner dependent upon p300 and acetyl-CoA, strongly potentiates transcription elongation through several contiguous nucleosomes as must occur in vivo. The transcription elongation factor SII is a major component of CTEA and strongly synergizes with p300 (histone acetylation) at a step subsequent to preinitiation complex formation. The purification of CTEA also identified HMGB2 as a coactivator that, while inactive on its own, enhances SII and p300 functions.

Mohamed Guermah; Vikas B. Palhan; Alan J. Tackett; Brian T. Chait; Robert G. Roeder

2006-01-01T23:59:59.000Z

343

Mechanism of activation gating in the full-length KcsA K[superscript +] channel  

Science Conference Proceedings (OSTI)

Using a constitutively active channel mutant, we solved the structure of full-length KcsA in the open conformation at 3.9 {angstrom}. The structure reveals that the activation gate expands about 20 {angstrom}, exerting a strain on the bulge helices in the C-terminal domain and generating side windows large enough to accommodate hydrated K{sup +} ions. Functional and spectroscopic analysis of the gating transition provides direct insight into the allosteric coupling between the activation gate and the selectivity filter. We show that the movement of the inner gate helix is transmitted to the C-terminus as a straightforward expansion, leading to an upward movement and the insertion of the top third of the bulge helix into the membrane. We suggest that by limiting the extent to which the inner gate can open, the cytoplasmic domain also modulates the level of inactivation occurring at the selectivity filter.

Uysal, Serdar; Cuello, Luis G.; Cortes, D. Marien; Koide, Shohei; Kossiakoff, Anthony A.; Perozo, Eduardo (UC)

2012-10-25T23:59:59.000Z

344

A Synoptic Analysis of the Interannual Variability of Winter Cyclone Activity in the Aleutian Low Region  

Science Conference Proceedings (OSTI)

An analysis of cyclone activity in winter associated with years of strong and weak Aleutian low in the North Pacific is presented. From 1958 to 2004, 10 winters with a strong Aleutian low are defined as the strong years, while 8 winters with a ...

Xiaojie Zhu; Jilin Sun; Zhengyu Liu; Qinyu Liu; Jonathan E. Martin

2007-04-01T23:59:59.000Z

345

Geomorphometric features and tectonic activities in sub-Himalayan thrust belt, Pakistan, from satellite data  

Science Conference Proceedings (OSTI)

The sub-Himalayan thrust belt is an active thrust wedge which progresses southward over the north-dipping Indian plate. The north-south compression resulted in severe deformation of sedimentary rocks in this belt. Distinct thrust geometries and topography ... Keywords: DEM, Himayayas, Landsat ETM+, Tectonics, Topography

Lize Chen; Shuhab D. Khan

2009-10-01T23:59:59.000Z

346

Storms and Lightning Activity in Greece during the Warm Periods of 2003–06  

Science Conference Proceedings (OSTI)

Lightning activity over Greece during the warm season (May–September) of the years 2003–06 is investigated in relation to the synoptic meteorological conditions that prevailed in the region. The study is based on the use of cloud-to-ground ...

N. Mazarakis; V. Kotroni; K. Lagouvardos; A. A. Argiriou

2008-12-01T23:59:59.000Z

347

Filtering Heart Related Activity from Vagus Nerve Recordings in G. de Lannoy1  

E-Print Network (OSTI)

Filtering Heart Related Activity from Vagus Nerve Recordings in Rats G. de Lannoy1 , J. Marin2 , M understanding of such situations. Due to the proximity of the recording site to the heart itself and beating in this field. Due to the proximity of the recording sites to the heart and beating arteries, the vagus nerve

Verleysen, Michel

348

Toward in vivo nanoscale communication networks: utilizing an active network architecture  

Science Conference Proceedings (OSTI)

A safe and reliable in vivo nanoscale communication network will be of great benefit for medical diagnosis and monitoring as well as medical implant communication. This review article provides a brief introduction to nanoscale and molecular ... Keywords: active network, in vivo network, molecular communication, molecular motor, nanoscale network, neural coding

Stephen F. Bush

2011-09-01T23:59:59.000Z

349

Time-course comparison of xenobiotic activators of CAR and PPAR{alpha} in mouse liver  

Science Conference Proceedings (OSTI)

Constitutive androstane receptor (CAR) and peroxisome proliferator activated receptor (PPAR){alpha} are transcription factors known to be primary mediators of liver effects, including carcinogenesis, by phenobarbital-like compounds and peroxisome proliferators, respectively, in rodents. Many similarities exist in the phenotypes elicited by these two classes of agents in rodent liver, and we hypothesized that the initial transcriptional responses to the xenobiotic activators of CAR and PPAR{alpha} will exhibit distinct patterns, but at later time-points these biological pathways will converge. In order to capture the global transcriptional changes that result from activation of these nuclear receptors over a time-course in the mouse liver, microarray technology was used. First, differences in basal expression of liver genes between C57Bl/6J wild-type and Car-null mice were examined and 14 significantly differentially expressed genes were identified. Next, mice were treated with phenobarbital (100 mg/kg by gavage for 24 h, or 0.085% w/w diet for 7 or 28 days), and liver gene expression changes with regards to both time and treatment were identified. While several pathways related to cellular proliferation and metabolism were affected by phenobarbital in wild-type mice, no significant changes in gene expression were found over time in the Car-nulls. Next, we determined commonalities and differences in the temporal response to phenobarbital and WY-14,643, a prototypical activator of PPAR {alpha}. Gene expression signatures from livers of wild-type mice C57Bl6/J mice treated with PB or WY-14,643 were compared. Similar pathways were affected by both compounds; however, considerable time-related differences were present. This study establishes common gene expression fingerprints of exposure to activators of CAR and PPAR{alpha} in rodent liver and demonstrates that despite similar phenotypic changes, molecular pathways differ between classes of chemical carcinogens.

Ross, Pamela K. [Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill, NC (United States); Woods, Courtney G. [Hamner Institutes for Health Sciences, Research Triangle Park, NC (United States); ExxonMobil Biomedical Sciences, Annandale, NJ (United States); Bradford, Blair U.; Kosyk, Oksana; Gatti, Daniel M. [Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill, NC (United States); Cunningham, Michael L. [National Institute for Environmental Health Sciences, Research Triangle Park, NC (United States); Rusyn, Ivan [Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill, NC (United States)], E-mail: iir@unc.edu

2009-03-01T23:59:59.000Z

350

A Census of Broad-Line Active Galactic Nuclei in Nearby Galaxies: Coeval Star Formation and Rapid Black Hole Growth  

E-Print Network (OSTI)

We present the first quantified, statistical map of broad-line active galactic nucleus (AGN) frequency with host galaxy color and stellar mass in nearby (0.01 nuclear activity also efficiently form stars. The data favor processes that simultaneously fuel both star formation activity and rapid superm...

Trump, Jonathan R; Fang, Jerome J; Faber, S M; Koo, David C; Kocevski, Dale D

2012-01-01T23:59:59.000Z

351

Functional and phenotypic effects of AhR activation in inflammatory dendritic cells  

SciTech Connect

Aryl hydrocarbon receptor (AhR) activation by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) induces immune suppression. Dendritic cells (DCs) are key antigen presenting cells governing T cell activation and differentiation. However, the consequences of AhR activation in DCs are not fully defined. We hypothesized that AhR activation alters DC differentiation and generates dysfunctional DCs. To test this hypothesis, inflammatory bone marrow-derived DCs (BMDCs) from C57Bl/6 mice were generated in the presence of vehicle or TCDD. TCDD decreased CD11c expression but increased MHC class II, CD86 and CD25 expression on the BMDCs. The effects of TCDD were strictly AhR-dependent but not exclusively DRE-mediated. Similar effects were observed with two natural AhR ligands, 6-formylindolo[3,2-b]carbazole (FICZ) and 2-(1H-Indol-3-ylcarbonyl)-4-thiazolecarboxylic acid (ITE). TCDD increased LPS- and CpG-induced IL-6 and TNF-{alpha} production by BMDCs but decreased their NO production. TCDD decreased CpG-induced IL-12p70 production by BMDCs but did not affect their secretion of IL-10. TCDD downregulated LPS- and CpG-induced NF-kB p65 levels and induced a trend towards upregulation of RelB levels in the BMDCs. AhR activation by TCDD modulated BMDC uptake of both soluble and particulate antigens. Induction of indoleamine-2,3-dioxygenase (IDO) and TGF-{beta}3 has been implicated in the generation of regulatory T cells following AhR activation. TCDD increased IDO1, IDO2 and TGF-{beta}3 mRNA levels in BMDCs as compared to vehicle. Despite the induction of regulatory mediators, TCDD-treated BMDCs failed to suppress antigen-specific T cell activation. Thus, AhR activation can directly alter the differentiation and innate functions of inflammatory DCs without affecting their ability to successfully interact with T cells.

Bankoti, Jaishree [Department of Biomedical and Pharmaceutical Sciences, University of Montana, Missoula, MT (United States); Center for Environmental Health Sciences, University of Montana, Missoula, MT (United States); Rase, Ben [Center for Environmental Health Sciences, University of Montana, Missoula, MT (United States); Simones, Tom [Department of Biomedical and Pharmaceutical Sciences, University of Montana, Missoula, MT (United States); Center for Environmental Health Sciences, University of Montana, Missoula, MT (United States); Shepherd, David M., E-mail: david.shepherd@umontana.ed [Department of Biomedical and Pharmaceutical Sciences, University of Montana, Missoula, MT (United States); Center for Environmental Health Sciences, University of Montana, Missoula, MT (United States)

2010-07-15T23:59:59.000Z

352

Identification of active agents for tetrachloroethylene degradation in Portland cement slurry containing ferrous iron  

E-Print Network (OSTI)

Fe(II)-based degradative solidification/stabilization (Fe(II)-DS/S) technology is the modification of conventional solidification/stabilization (S/S). Inorganic pollutants are immobilized by Fe(II)-DS/S while organic pollutants are destroyed. Experimental studies were conducted to identify the active agents for Tetrachloroethylene (PCE) degradation as well as the conditions that enhance the formation of the active agents in the Fe(II)-DS/S system. PCE was chosen as a model chlorinated aliphatic hydrocarbon in this study. First, the conditions that lead to maximizing production of the active agents were identified by measuring the ability of various chemical mixtures to degrade PCE. Results showed that Fe(II), Fe(III), Ca, and Cl were the the important elements that affect degradation activity. Elemental compositions of the mixtures and the conditions affecting solid formation might be the important factors in determining how active solids are formed. Second, instrumental analyses (XRD, SEM, SEM-EDS) were used to identify minerals in chemical mixtures that have high activities. Results indicate that active agents for PCE degradation in Portland cement slurries and in cement extracts might be one of several AFm phases. However, systems without cement did not form the same solids as those with cement or cement extract. Ferrous hydroxide was identified as a major solid phase formed in systems without cement. Finally, the effect of using different types of ordinary Portland cement (OPC) on PCE degradation rate during Fe(II)-DS/S was examined and the solids were examined by instrumental analyses (XRD, SEM, SEM-EDS). Four different OPC (Txi, Lehigh, Quikrete, and Capitol) showed different PCE degradation behaviors. Pseudo first-order kinetics was observed for Capitol and Txi OPC and second-order kinetics was observed for Quikrete. In the case of Lehigh cement, pseudo first-order kinetics was observed in cement slurry and second-order kinetics in cement extract. Calcium aluminum hydroxide hydrates dominated solids made with Txi, Quikrete, and Lehigh cements and FriedelÂ?s salt was the major phase found in solids made with Capitol cements. Fe tended to be associated with hexagonal thin plate particles, which were supposed to be a LDH.

Ko, Sae Bom

2003-05-01T23:59:59.000Z

353

Issues Related to Seismic Activity Induced by the Injection of CO2 in Deep Saline Aquifiers  

NLE Websites -- All DOE Office Websites (Extended Search)

ISSUES RELATED TO SEISMIC ACTIVITY INDUCED BY THE INJECTION ISSUES RELATED TO SEISMIC ACTIVITY INDUCED BY THE INJECTION OF CO 2 IN DEEP SALINE AQUIFERS Joel Sminchak (sminchak@battelle.org; 614-424-7392) Neeraj Gupta (gupta@battelle.org; 614-424-3820) Battelle Memorial Institute 505 King Avenue Columbus, Ohio 43201 Charles Byrer (a) and Perry Bergman (b) National Energy Technology Laboratory (a) P.O. Box 880, Morgantown, WV, 26507-0880 (b) P.O. Box 10940, Pittsburgh, PA, 15236-0940 Abstract Case studies, theory, regulation, and special considerations regarding the disposal of carbon dioxide (CO 2 ) into deep saline aquifers were investigated to assess the potential for induced seismic activity. Formations capable of accepting large volumes of CO 2 make deep well injection of CO 2 an attractive option. While seismic implications must be considered for injection

354

Long term activation in a 15 MeV radiotherapy accelerator  

SciTech Connect

The high energy electrons produced by linear accelerators can generate several radioisotopes by means of photonuclear reactions. The activity produced in the head of a 15 MV Mevatron Siemens 77 medical linear accelerator was measured by high resolution gamma-ray spectrometry, during its decommissioning 1 year after the last clinical use. The activity of {sup 54}Mn, {sup 57}Co, {sup 60}Co, {sup 181}W, and {sup 65}Zn was measured while the activity of other radioisotopes which emit soft {beta} or {gamma} rays such as {sup 59}Ni, {sup 63}Ni, and {sup 55}Fe was inferred by appropriate scaling factors. The number of pieces requiring particular care is limited, their mass does not exceed some tens of kilograms, and their volume is of the order of some thousands of cm{sup 3}. Moreover, these materials are metals and the emitted radiation can be easily shielded, so that storage should not create particular problems.

Brusa, A.; Cesana, A.; Stucchi, C.; Terrani, M.; Zanellati, F. [Health Physics Department, National Cancer Institute of Milan, Milan 20133 (Italy); Nuclear Engineering Department, Politecnico di Milano, Milan 20133 (Italy); Health Physics Department, National Cancer Institute of Milan, Milan 20133 (Italy); Nuclear Engineering Department, Politecnico di Milano, Milan 20133 (Italy); Health Physics Department, National Cancer Institute of Milan, Milan 20133 (Italy)

2008-07-15T23:59:59.000Z

355

Dose rates from induced activity in the ELMO Bumpy Torus proof-of-principle device  

DOE Green Energy (OSTI)

Calculated results of the dose rates from induced activity in the enclosure of the ELMO Bumpy Torus proof-of-principle device (EBT-P) are presented. A cylindrical model of EBT-P is used. EBT-P will have a hydrogen plasma and thus the plasma will not produce neutrons, but substantial numbers of photoneutrons will be produced and it is the induced activity from these photoneutrons that is considered. The activation dose rates are presented for a variety of operating times and times after shutdown. Dose rates about 5 to 10 mrem/h at 1 h after shutdown are obtained and the major contributor to the dose rate at 1 h after shutdown is found to be /sup 24/Na (half-life=15.0 h).

Alsmiller, R.G.; Barish, J.; Barnes, J.M.; Santoro, R.T.

1983-11-01T23:59:59.000Z

356

NSNFP Activities in Support of Repository Licensing for Disposal of DOE SNF  

Science Conference Proceedings (OSTI)

The U.S. Department of Energy (DOE) Office of Civilian Radioactive Waste Management is in the process of preparing the Yucca Mountain license application for submission to the Nuclear Regulatory Commission as the nation’s first geologic repository for spent nuclear fuel (SNF) and high-level waste. Because the DOE SNF will be part of the license application, there are various components of the license application that will require information relative to the DOE SNF. The National Spent Nuclear Fuel Program (NSNFP) is the organization that directs the research, development, and testing of treatment, shipment, and disposal technologies for all DOE SNF. This report documents the work activities conducted by the NSNFP and discusses the relationship between these NSNFP technical activities and the license application. A number of the NSNFP activities were performed to provide risk insights and understanding of DOE SNF disposal as well as to prepare for anticipated questions from the regulatory agency.

Henry H. Loo; Brett W.. Carlsen; Sheryl L. Morton; Larry L. Taylor; Gregg W. Wachs

2004-09-01T23:59:59.000Z

357

Transition in Survival From Low-Dose Hyper-Radiosensitivity to Increased Radioresistance Is Independent of Activation of ATM SER1981 Activity  

SciTech Connect

Purpose: The molecular basis of low-dose hyper-radiosensitivity (HRS) is only partially understood. The aim of this study was to define the roles of ataxia telangiectasia mutated (ATM) activity and the downstream ATM-dependent G{sub 2}-phase cell cycle checkpoint in overcoming HRS and triggering radiation resistance. Methods and Materials: Survival was measured using a high-resolution clonogenic assay. ATM Ser1981 activation was measured by Western blotting. The role of ATM was determined in survival experiments after molecular (siRNA) and chemical (0.4 mM caffeine) inhibition and chemical (20 {mu}g/mL chloroquine, 15 {mu}M genistein) activation 4-6 h before irradiation. Checkpoint responsiveness was assessed in eight cell lines of differing HRS status using flow cytometry to quantify the progression of irradiated (0-2 Gy) G{sub 2}-phase cells entering mitosis, using histone H3 phosphorylation analysis. Results: The dose-response pattern of ATM activation was concordant with the transition from HRS to radioresistance. However, ATM activation did not play a primary role in initiating increased radioresistance. Rather, a relationship was discovered between the function of the downstream ATM-dependent early G{sub 2}-phase checkpoint and the prevalence and overcoming of HRS. Four cell lines that exhibited HRS failed to show low-dose (<0.3-Gy) checkpoint function. In contrast, four HRS-negative cell lines exhibited immediate cell cycle arrest for the entire 0-2-Gy dose range. Conclusion: Overcoming HRS is reliant on the function of the early G{sub 2}-phase checkpoint. These data suggest that clinical exploitation of HRS could be achieved by combining radiotherapy with chemotherapeutic agents that modulate this cell cycle checkpoint.

Krueger, Sarah A. [Department of Radiation Oncology, Karmanos Cancer Institute, Wayne State University, Detroit, MI (United States); Collis, Spencer J. [DNA Damage Response Laboratory, Cancer Research United Kingdom, Clare Hall Laboratories, South Mimms (United Kingdom); Joiner, Michael C. [Department of Radiation Oncology, Karmanos Cancer Institute, Wayne State University, Detroit, MI (United States); Wilson, George D. [Department of Radiation Oncology, Karmanos Cancer Institute, Wayne State University, Detroit, MI (United States); Department of Radiation Oncology, William Beaumont Hospital, Royal Oak, MI (United States); Marples, Brian [Department of Radiation Oncology, Karmanos Cancer Institute, Wayne State University, Detroit, MI (United States); Department of Radiation Oncology, William Beaumont Hospital, Royal Oak, MI (United States)], E-mail: brian.marples@beaumont.edu

2007-11-15T23:59:59.000Z

358

Disturbances in the U.S. electric grid associated with geomagnetic activity  

E-Print Network (OSTI)

Large solar explosions are responsible for space weather that can impact technological infrastructure on and around Earth. Here, we apply a retrospective cohort exposure analysis to quantify the impacts of geomagnetic activity on the U.S. electric power grid for the period from 1992 through 2010. We find, with more than 3-sigma significance, that approximately 4% of the disturbances in the U.S. power grid reported to the U.S. Department of Energy are attributable to strong geomagnetic activity and its associated geomagnetically induced currents.

Schrijver, Carolus J

2013-01-01T23:59:59.000Z

359

FREQUENCY OF MAUNDER MINIMUM EVENTS IN SOLAR-TYPE STARS INFERRED FROM ACTIVITY AND METALLICITY OBSERVATIONS  

Science Conference Proceedings (OSTI)

We consider the common proposition that the fraction of chromospherically very inactive stars in a solar-type sample is analogous to the fraction of the Sun's main-sequence lifetime spent in a grand minimum state. In a new approach to this proposition, we examine chromospheric activity log R'{sub HK} in a stellar sample having Hipparcos parallax measurements, and having spectroscopically determined metallicity close to solar (-0.1 {<=} [Fe/H] {<=} 0.1). We evaluate height above the Hipparcos main sequence, and estimate age using isochrones, to identify the most Sun-like stars in this sample. As a threshold below which a star is labeled very inactive, we use the peak of the HK activity distribution mapped over the quiet Sun during the 1968 epoch. We estimate the fraction of Maunder Minimum (MM) analog candidates in our sample at 11.1%. Given the 70 yr duration of the historical MM, this suggests that in any given year there is a 1/630 chance of entering a similar grand minimum. There are three important cautions with this type of estimate. First, recent investigation using actual activity and photometric time series has suggested that very low activity may not be a necessary criterion for identifying a non-cycling MM analog candidate. Second, this type of estimate depends very strongly on the choice of very low activity threshold. Third, in instantaneous measurements of log R'{sub HK}, it is not always clear whether a star is a viable MM analog candidate or merely an older star nearing the end of its main-sequence lifetime.

Lubin, Dan [Scripps Institution of Oceanography, University of California, San Diego, CA 92093-0221 (United States); Tytler, David; Kirkman, David [Center for Astrophysics and Space Science, University of California, San Diego, CA 92093-0424 (United States)

2012-03-10T23:59:59.000Z

360

Systematic Variation of Summertime Tropical Cyclone Activity in the Western North Pacific in Relation to the Madden–Julian Oscillation  

Science Conference Proceedings (OSTI)

The variability of observed tropical cyclone (TC) activity (i.e., genesis, track, and landfall) in the western North Pacific (WNP) is examined in relation to the various categories of the Madden–Julian oscillation (MJO) during summer (June–...

Joo-Hong Kim; Chang-Hoi Ho; Hyeong-Seog Kim; Chung-Hsiung Sui; Seon Ki Park

2008-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "activities in cluding" 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

Increased hepatic oxidative metabolism distinguishes the action of Peroxisome proliferator-activated receptor delta from Peroxisome proliferator-activated receptor gamma in the ob/ob mouse  

E-Print Network (OSTI)

, consistent with this receptor being involved in regulating white adipose tissue storage of triglycerides and adipocyte expandability [25]. The glucogenic amino acids (those that are precursors of glucose in gluconeogenesis), glycine, glutamate, glutamine... HDL cholesterol concentrations. Activation of PPAR? increases the expres- sion of the cholesterol efflux pump ATP-binding cassette transporter1, promoting the efflux of cholesterol from peripheral tissues, which may lead to the observed increase in HDL...

Roberts, Lee D; Hassall, David G; Winegar, Deborah A; Haselden, John N; Nicholls, Andrew W; Griffin, Julian L

2009-12-07T23:59:59.000Z

362

The Environment of Active Galaxies in the SDSS-DR4  

E-Print Network (OSTI)

We study the environment of active galaxies and compare it with that of star forming and normal galaxies. We extracted from the Fourth Data Release (DR4) of the Sloan Digitaly Sky Survey (SDSS) the galaxies in the redshift range 0.05 \\le z \\le 0.095 and with M(r) \\le -20.0 (that is M* + 1.45). Emission line ratios and/or widths are used to separate Active Galactic Nuclei (AGN) from Star-Forming Galaxies (SFGs); AGN are classified as Seyfert-1 and Seyfert-2 galaxies according to emission line widths. The environmental properties, as defined by a density parameter and the number of companions, are compared for the different types of galaxies, taking into account the morphological type of the host galaxies. We find no difference in the large-scale environment of Seyfert-1 and Seyfert-2 galaxies; however, a larger fraction of Seyfert-2 (~2%) than Seyfert-1 (~1%) is found in systems which are smaller than r_{max} \\le 100 kpc, mainly in low-density environments (pairs or triplets); for comparison, this fraction is ~2% for star forming galaxies and ~1% for normal galaxies. We find no evidence for a relation between large-scale environment properties and activity. If activity and environment are related, this more likely occurs on small scales (e.g. galaxy interaction, merging).

G. Sorrentino; M. Radovich; A. Rifatto

2006-01-18T23:59:59.000Z

363

Applications of oxygen activation for injection and production profiling in the Kuparuk River field  

SciTech Connect

A new time-dependent method of oxygen-activation logging, now being used in the Kuparuk River field on the North Slope of Alaska, provides critical data for waterflood performance evaluation, assessment of ultimate recovery, and evaluation of potential for infill drilling and EOR projects without the use of radioactive tracer materials.

Pearson, C.M.; Renke, S.M. (Arco Alaska Inc., Anchorage, AK (United States)); McKeon, D.C.; Meisenhelder, J.P. (Schlumberger, Houston, TX (United States)); Scott, H.D.

1993-06-01T23:59:59.000Z

364

Arsenic and antimony in laundry aids by instrumental neutron activation analysis  

SciTech Connect

>The measurement of trace amounts of arsenic and antimony in laundry aids by neutron activation analysis is described. The results for arsenic are compared with those obtained by other analytical techniques. The concentratlons ln the various laundry aids tested ranged from 5 to 51 ppM of arsenic and from 1 to 8 ppM of antimony. (auth)

Tanner, J.T.; Friedman, M.H.; Holloway, G.E.

1973-10-01T23:59:59.000Z

365

Effect of aspect ratio on convection in a porous enclosure with partially active thermal walls  

Science Conference Proceedings (OSTI)

The aim of the present numerical investigation is to understand the effect of aspect ratio and partially thermally active zones on convective flow and heat transfer in a rectangular porous enclosure. Five different heating and cooling zones are considered ... Keywords: Aspect ratio, Finite volume method, Natural convection, Partial heating, Porous medium

M. Bhuvaneswari; S. Sivasankaran; Y. J. Kim

2011-11-01T23:59:59.000Z

366

A Distributed Active Information Model Enabling Distributed Autonomics in Complex Electronic Enviornments  

Science Conference Proceedings (OSTI)

Information modeling plays a central role in managing complexity of the distributed electronic systems. This paper proposes a nature-inspired distributed active information model (DAIM) to enable the local decision-making process, that will fundamentally ... Keywords: Distributed Information Model, Object-oriented, XML

Robin Braun; Frank Chiang

2008-11-01T23:59:59.000Z

367

Clean Critical Experiment Benchmarks for Plutonium Recycle in LWRs (Foil Activation Studies)  

Science Conference Proceedings (OSTI)

In order to provide benchmark information for testing fuel-cycle analysis methods and nuclear data libraries, EPRI supported a series of critical lattice experiments at Battelle, Pacific Northwest Laboratories' plutonium recycle critical facility. These experiments involved water-moderated uniform uranium oxide and mixed (uranium-plutonium) oxide critical lattices. This volume presents the foil activation data obtained from this experimental program.

1978-09-01T23:59:59.000Z

368

Predicting Spring Tornado Activity in the Central Great Plains By March 1st  

Science Conference Proceedings (OSTI)

The authors illustrate a statistical model for predicting tornado activity in the central Plains by March 1st. The model predicts the number of tornado reports during April–June using February sea-surface temperature (SST) data from the Gulf of ...

James B. Elsner; Holly M. Widen

369

ITER Engineering Design Activities -R & DITER-In-Vessel Remote Handling  

E-Print Network (OSTI)

ITER Engineering Design Activities - R & DITER- In-Vessel Remote Handling Blanket Module Remote Handling Project (L-6) Divertor Remote Handling Project (L-7) Objective To develop and demonstrate handling equipment, port handling equipment, auxiliary remote handling tools and a blanket mockup structure

370

Adaptive algorithms for sensor activation in renewable energy based sensor systems  

Science Conference Proceedings (OSTI)

Upcoming sensor networks would be deployed with sensing devices with energy harvesting capabilities from renewable energy sources such as solar power. A key research question in such sensor systems is to maximize the asymptotic event detection probability ... Keywords: Adaptive algorithms, Energy harvesting sensor systems, Sensor activation, Temporal correlations

Neeraj Jaggi, Sreenivas Madakasira, Sandeep Reddy Mereddy, Ravi Pendse

2013-06-01T23:59:59.000Z

371

State-of-Knowledge on Deposition, Part 2: Assessment of Deposition Activity in Fossil Plant Units  

Science Conference Proceedings (OSTI)

Over the last 20 years, substantial advances have been made in the understanding and control of fossil plant cycle chemistry. In spite of these advances, deposition activity, most notably in boilers and steam turbines, remains an issue of concern to many organizations that operate fossil units. The underlying science of deposition in fossil unit components has not, with the exception of steam turbines, been studied extensively under the EPRI Boiler and Turbine Steam and Cycle Chemistry Program. This repo...

2003-12-08T23:59:59.000Z

372

Advances in the In-House CdTe Research Activities at NREL  

DOE Green Energy (OSTI)

NREL in-house CdTe research activities have impacted a broad range of recent program priorities. Studies aimed at industrially relevant applications have produced new materials and processes that enhance the performance of devices based on commercial materials (e.g., soda-lime glass, SnO2:F). Preliminary tests of the effectiveness of these novel components using large-scale processes have been encouraging. Similarly, electro- and nano-probe techniques have been developed and used to study the evolution and function of CdTe grain boundaries. Finally, cathodoluminescence (CL) and photoluminescence (PL) studies on single-crystal samples have yielded improved understanding of how various processes may combine to produce important defects in CdTe films.

Gessert, T.; Wu, X.; Dhere, R.; Moutinho, H.; Smith, S.; Romero, M.; Zhou, J.; Duda, A.; Corwine, C.

2005-01-01T23:59:59.000Z

373

Department of Energy Activities in Response to the Deepwater BP Oil Spill  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Activities in Response to the Deepwater BP Oil Spill Activities in Response to the Deepwater BP Oil Spill At the request of the President, Secretary Chu and Secretary Salazar traveled to Houston and participated in meetings today with DOE and national lab staff, industry officials and other engineers and scientists involved in finding solutions to cap the flow of oil and contain the spill. Secretary Chu assembled a group of top scientific experts from inside and outside of government to join in today's discussions in Houston about possible solutions. This team includes: * Dr. Tom Hunter, Director of the Department of Energy's Sandia National Labs * Dr. George A. Cooper, an expert in materials science and retired professor from UC Berkeley * Richard Lawrence Garwin, a physicist and IBM Fellow Emeritus

374

FRESH ACTIVITY IN OLD SYSTEMS: RADIO AGNs IN FOSSIL GROUPS OF GALAXIES  

Science Conference Proceedings (OSTI)

We present the first systematic 1.4 GHz Very Large Array radio continuum survey of fossil galaxy group candidates. These are virialized systems believed to have assembled over a gigayear in the past through the merging of galaxy group members into a single, isolated, massive elliptical galaxy and featuring an extended hot X-ray halo. We use new photometric and spectroscopic data from Sloan Digital Sky Survey Data Release 7 to determine that three of the candidates are clearly not fossil groups. Of the remaining 30 candidates, 67% contain a radio-loud (L{sub 1.4GHz} > 10{sup 23} W Hz{sup -1}) active galactic nucleus (AGN) at the center of their dominant elliptical galaxy. We find a weak correlation between the radio luminosity of the AGN and the X-ray luminosity of the halo suggesting that the AGN contributes to energy deposition into the intragroup medium. We only find a correlation between the radio and optical luminosity of the central elliptical galaxy when we include X-ray-selected, elliptically dominated non-fossil groups, indicating a weak relationship between AGN strength and the mass assembly history of the groups. The dominant elliptical galaxy of fossil groups is on average roughly an order of magnitude more luminous than normal group elliptical galaxies in optical, X-ray, and radio luminosities and our findings are consistent with previous results that the radio-loud fraction in elliptical galaxies is linked to the stellar mass of a population. The current level of activity in fossil groups suggests that AGN fueling continues long after the last major merger. We discuss several possibilities for fueling the AGN at the present epoch.

Hess, Kelley M. [Department of Astronomy, University of Cape Town, Private Bag X3, Rondebosch 7701 (South Africa); Wilcots, Eric M.; Hartwick, Victoria L., E-mail: hess@ast.uct.ac.za, E-mail: ewilcots@astro.wisc.edu, E-mail: vhartwick@wisc.edu [Department of Astronomy, University of Wisconsin-Madison, Madison, WI 53706 (United States)

2012-08-15T23:59:59.000Z

375

Department of Energy interest and involvement in nuclear plant license renewal activities  

SciTech Connect

Recognizing the importance of nuclear license renewal to the nation's energy strategy, the Department of Energy (DOE) initiated a plant lifetime improvement program during 1985 to determine the feasibility of the license renewal option for US nuclear plants. Initial activities of the DOE program focused on determining whether there were technical and economic obstacles that might preclude or limit the successful implementation of the license renewal option. To make this determination, DOE cosponsored with the Electric Power Research Institute (EPRI) pilot-plant efforts by Virginia Electric Power and Northern States Power. Both pilot-plant efforts concluded that life extension is technically and economically feasible. In parallel with the pilot-plant activities, DOE performed national economic studies that demonstrated the economic desirability of life extension. Having demonstrated the feasibility of life extension, DOE, in conjunction with EPRI, selected two lead plants to demonstrate the license renewal process. These lead plants are Yankee Atomic's Yankee Rowe facility and Northern States Power's Monticello facility. DOE also initiated activities to develop the technical and regulatory bases to support the license renewal process in the United States. DOE has recently identified nuclear plant license renewal to be an important element of its National Energy Strategy. This paper summarizes the significant results, conclusions, and ongoing activities of the DOE effort. 18 refs.

Bustard, L.D. (Sandia National Labs., Albuquerque, NM (USA)); Harrison, D.L. (USDOE Assistant Secretary for Nuclear Energy, Washington, DC (USA). Office of LWR Safety and Technology)

1991-01-01T23:59:59.000Z

376

Actively Star Forming Elliptical Galaxies at Low Redshifts in the Sloan Digital Sky Survey  

E-Print Network (OSTI)

We report discovery of actively star forming elliptical galaxies in a morphologically classified sample of bright galaxies at a low redshift obtained from the Sloan Digital Sky Survey. The emission lines of these galaxies do not show the characteristics of active galactic nuclei, and thus their strong H$\\alpha$ emission is ascribed to star formation with a rate nearly as high as that is seen in typical late spiral galaxies. This is taken as evidence against the traditional view that all elliptical galaxies formed early and now evolve only passively. The frequency of such star forming elliptical galaxies is a few tenths of a percent in the sample, but increases to 3% if we include active S0 galaxies. We may identify these galaxies as probable progenitors of so-called E+A galaxies that show the strong Balmer absorption feature of A stars superimposed on an old star population. The approximate match of the abundance of active elliptical plus S0 galaxies with that of E+A galaxies indicates that the duration of such late star formation episodes is of the order of $\\gsim 1$ Gyr. If we interpret these galaxies as new additions to the early-type galaxy population, and if we assume a power law for their number evolution, the abundance of early-type galaxies at $z=1$ is about 30% less than that at $z=0$.

Masataka Fukugita; Osamu Nakamura; Edwin L. Turner; Joe Helmboldt; R. C. Nichol

2003-12-19T23:59:59.000Z

377

SEQUESTRATION OF METALS IN ACTIVE CAP MATERIALS: A LABORATORY AND NUMERICAL EVALUATION  

SciTech Connect

Active capping involves the use of capping materials that react with sediment contaminants to reduce their toxicity or bioavailability. Although several amendments have been proposed for use in active capping systems, little is known about their long-term ability to sequester metals. Recent research has shown that the active amendment apatite has potential application for metals contaminated sediments. The focus of this study was to evaluate the effectiveness of apatite in the sequestration of metal contaminants through the use of short-term laboratory column studies in conjunction with predictive, numerical modeling. A breakthrough column study was conducted using North Carolina apatite as the active amendment. Under saturated conditions, a spike solution containing elemental As, Cd, Co, Se, Pb, Zn, and a non-reactive tracer was injected into the column. A sand column was tested under similar conditions as a control. Effluent water samples were periodically collected from each column for chemical analysis. Relative to the non-reactive tracer, the breakthrough of each metal was substantially delayed by the apatite. Furthermore, breakthrough of each metal was substantially delayed by the apatite compared to the sand column. Finally, a simple 1-D, numerical model was created to qualitatively predict the long-term performance of apatite based on the findings from the column study. The results of the modeling showed that apatite could delay the breakthrough of some metals for hundreds of years under typical groundwater flow velocities.

Dixon, K.; Knox, A.

2012-02-13T23:59:59.000Z

378

Performance measures for evaluating public participation activities in DOE`s Office of Environmental Management  

Science Conference Proceedings (OSTI)

Public participation in decision-making in the United States has become a dominant theme throughout the public sector and is increasingly used in the private sector. Recent reports by the National Research Council and the Commission on Risk Assessment and Risk Management, set up jointly by the White House and Congress, conclude that risk decisions must increasingly be structured in such a manner as to involve stakeholders meaningfully in the processes and activities leading to decisions and, perhaps, through decision implementation. Both of these reports indicate that decisions may take longer but be better if officials: (1) bring all interested and affected parties to the table at the beginning of the risk-discussion process; (2) identify relevant concerns, losses, exposures and other information the parties have; (3) address significant concerns through appropriate research; and (4) present findings in an understandable, accessible way. This report is intended to facilitate subsequent evaluations of public participation activities and programs.

Carnes, S.A.; Schweitzer, M.; Peelle, E.B.; Wolfe, A.K.; Munro, J.F.

1996-08-01T23:59:59.000Z

379

Enhancing hydrogen evolution activities in water splitting by tailoring Li+/Ni(OH){<_2}/Pt interfaces.  

DOE Green Energy (OSTI)

Improving the sluggish kinetics for the electrochemical reduction of water to molecular hydrogen in alkaline environments is one key to reducing the high overpotentials and associated energy losses in water-alkali and chlor-alkali electrolyzers. We found that a controlled arrangement of nanometer-scale Ni(OH){sub 2} clusters on platinum electrode surfaces manifests a factor of 8 activity increase in catalyzing the hydrogen evolution reaction relative to state-of-the-art metal and metal-oxide catalysts. In a bifunctional effect, the edges of the Ni(OH){sub 2} clusters promoted the dissociation of water and the production of hydrogen intermediates that then adsorbed on the nearby Pt surfaces and recombined into molecular hydrogen. The generation of these hydrogen intermediates could be further enhanced via Li{sup +}-induced destabilization of the HO-H bond, resulting in a factor of 10 total increase in activity.

Subbaraman, S.; Tripkovic, D.; Strmcnik, D.; Chang, K-C.; Uchimura, M.; Paulikas, A. P.; Stamenkovic, V.; Markovic, N. M. (Materials Science Division); ( NE); (Nissan Res. Ctr.)

2011-12-02T23:59:59.000Z

380

IMPACT OF TARGET MATERIAL ACTIVATION ON PERSONNEL EXPOSURE AND RADIOACTIVE CONTAMINATION IN THE NATIONAL IGNITION FACILITY  

Science Conference Proceedings (OSTI)

Detailed activation analyses are performed for the different materials under consideration for use in the target capsules and hohlraums used during the ignition campaign on the National Ignition Facility. Results of the target material activation were additionally used to estimate the levels of contamination within the NIF target chamber and the workplace controls necessary for safe operation. The analysis examined the impact of using Be-Cu and Ge-doped CH capsules on the external dose received by workers during maintenance activities. Five days following a 20 MJ shot, dose rates inside the Target Chamber (TC) due to the two proposed capsule materials are small ({approx} 1 {micro}rem/h). Gold and depleted-uranium (DU) are considered as potential hohlraum materials. Following a shot, gold will most probably get deposited on the TC first wall. On the other hand, while noble-gas precursors from the DU are expected to stay in the TC, most of the noble gases are pumped out of the chamber and end up on the cryopumps. The dose rates inside the TC due to activated gold or DU, at 5 days following a 20 MJ shot, are about 1 mrem/h. Dose rates in the vicinity of the cryo-pumps (containing noble 'fission' gases) drop-off to about 1 mrem/h during the first 12 hours following the shot. Contamination from activation of NIF targets will result in the NIF target chamber exceeding DOE surface contamination limits. Objects removed from the TC will need to be managed as radioactive material. However, the results suggest that airborne contamination from resuspension of surface contamination will not be significant and is at levels that can be managed by negative ventilation when accessing the TC attachments.

Khater, H; Epperson, P; Thacker, R; Beale, R; Kohut, T; Brereton, S

2009-06-30T23:59:59.000Z

Note: This page contains sample records for the topic "activities in cluding" 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

Doctoral student experience in Education:Activities and difficulties influencing identity development  

E-Print Network (OSTI)

identity. However, little research has attempted to explore the nature and range of such day-to-day events and activities that are relevant to the formative development of doctoral students’ academic identity. Thus, in this study, we offer two windows... and analysis Consenting participants in Canada and the UK were emailed once a month with a request to complete an attached questionnaire - a structured logging tool documenting various facets of their experience and feeling over the course of a week. In Canada...

McAlpine, Lynn; Jazvac-Martek, Marian; Hopwood, Nick

2009-01-01T23:59:59.000Z

382

CHANDRA OBSERVATIONS OF GALAXY ZOO MERGERS: FREQUENCY OF BINARY ACTIVE NUCLEI IN MASSIVE MERGERS  

Science Conference Proceedings (OSTI)

We present the results from a Chandra pilot study of 12 massive galaxy mergers selected from Galaxy Zoo. The sample includes major mergers down to a host galaxy mass of 10{sup 11} M{sub Sun} that already have optical active galactic nucleus (AGN) signatures in at least one of the progenitors. We find that the coincidences of optically selected active nuclei with mildly obscured (N{sub H} {approx}< 1.1 Multiplication-Sign 10{sup 22} cm{sup -2}) X-ray nuclei are relatively common (8/12), but the detections are too faint (<40 counts per nucleus; f{sub 2-10keV} {approx}< 1.2 Multiplication-Sign 10{sup -13} erg s{sup -1} cm{sup -2}) to reliably separate starburst and nuclear activity as the origin of the X-ray emission. Only one merger is found to have confirmed binary X-ray nuclei, though the X-ray emission from its southern nucleus could be due solely to star formation. Thus, the occurrences of binary AGNs in these mergers are rare (0%-8%), unless most merger-induced active nuclei are very heavily obscured or Compton thick.

Teng, Stacy H. [Observational Cosmology Laboratory, NASA/GSFC, Greenbelt, MD 20771 (United States); Schawinski, Kevin; Urry, C. Megan; Bonning, Erin W. [Department of Physics, Yale University, New Haven, CT 06511 (United States); Darg, Dan W.; Kaviraj, Sugata; Lintott, Chris J. [Department of Physics, University of Oxford, Keble Road, Oxford OX1 3RH (United Kingdom); Oh, Kyuseok [Department of Astronomy, Yonsei University, Seoul 120-749 (Korea, Republic of); Cardamone, Carolin N. [Harriet W. Sheridan Center for Teaching and Learning, Brown University, P.O. Box 1912, Providence, RI 02912 (United States); Keel, William C. [Department of Physics and Astronomy, 206 Gallalee Hall, 514 University Boulevard, University of Alabama, Tuscaloosa, AL 35487-034 (United States); Simmons, Brooke D. [Yale Center for Astronomy and Astrophysics, Yale University, P.O. Box 208121, New Haven, CT 06520 (United States); Treister, Ezequiel, E-mail: stacy.h.teng@nasa.gov [Departamento de Astronomia, Universidad de Concepcion, Casilla 160-C, Concepcion (Chile)

2012-07-10T23:59:59.000Z

383

STARSPOTS, SPIN-ORBIT MISALIGNMENT, AND ACTIVE LATITUDES IN THE HAT-P-11 EXOPLANETARY SYSTEM  

Science Conference Proceedings (OSTI)

We present the analysis of four months of Kepler photometry of the K4V star HAT-P-11, including 26 transits of its 'super-Neptune' planet. The transit data exhibit numerous anomalies which we interpret as passages of the planet over dark starspots. These spot-crossing anomalies preferentially occur at two specific phases of the transit. These phases can be understood as the intersection points between the transit chord and the active latitudes of the host star, where starspots are most abundant. Based on the measured characteristics of spot-crossing anomalies and previous observations of the Rossiter-McLaughlin effect, we find two solutions for the stellar obliquity {psi} and active latitude l: either {psi} = 106{sup +15}{sub -11} and l = 19.7{sup +1.5}{sub -2.2}, or {psi} = 97{sup +8}{sub -4} and l = 67{sup +2}{sub -4} (all in degrees). If the active latitude changes with time analogous to the 'butterfly diagram' of the Sun's activity cycle, future observations should reveal changes in the preferred phases of spot-crossing anomalies.

Sanchis-Ojeda, Roberto; Winn, Joshua N. [Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139 (United States)

2011-12-10T23:59:59.000Z

384

DNA Activity  

NLE Websites -- All DOE Office Websites (Extended Search)

DNA Activity DNA Activity Name: Sara Location: N/A Country: N/A Date: N/A Question: Is DNA an anion or a cation? I thought since it was negatively charged it was an anion but mt teacher in class today said it was a cation because negatively charged molecules logically migrate to the positively charged plate of the cathode, ie molecules that migrate towards a cathode are cations. Where is the error in my logic or there error in my logic? Replies: DNA is negatively charged due to the phosphate ions present in the ribose-phosphate backbone. It moves towards the positive pole during electrophoresis. The definition kation/anion is confusing because: 1. a cation moves to the cathode 2. the cathode is negative, thus 3. a cation is positive DNA is an anion. The confusion is that a cathode is negative, but a cation is positively charged. For that reason these terms are not generally used in this context.

385

Anticancer activity of peach and plum extracts against human breast cancer in vitro and in vivo  

E-Print Network (OSTI)

Commercial varieties of peaches and plums contain a mixture of phenolics that may possess anticancer activity. Our objectives were to evaluate extracts from a commercial variety of yellow fleshed peach "Rich Lady" (RL) and of the red fleshed plum "Black Splendor" (BS) on tumor breast cells in vitro and in vivo, to elucidate the molecular mechanisms behind the cancer growth-suppression of the phenolics identified in peach and plum extracts for their chemopreventive potential and to evaluate the tumor growth-suppression in vivo. The RL extract preferentially inhibited the proliferation of the estrogen-independent MDA-MB-435 breast cancer cells over the estrogen-dependent MCF-7 or the normal MCF-10A breast cells. Similarly, BS extracts, though less effective than RL extracts, showed greater effects on MDA-MB-435 cells compared to the other cell lines. Fractionation of RL extracts into different groups of phenolic compounds allowed the identification of a fraction of phenolic acids (F1) with the major components of chlorogenic and neo-chlorogenic acid with potential in chemoprevention because of the relatively high growth-inhibition exerted on MDA-MB-435 and low toxicity exerted on MCF-10A cells. The F1 isolated from RL, and its major components, chlorogenic and neo-chlorogenic acids, triggered the extrinsic and intrinsic apoptotic pathways. The extrinsic death-receptor pathway involved the activation of caspase-8 followed by caspase-6, caspase-7, and PARP cleavage. By targeting the intrinsic pathway, the pro-apoptotic proteins cytochrome c, EndoG and AIF were released from mitochondria. The relatively higher cell-growth inhibition exerted by neo-chlorogenic acid was associated with its ability to inhibit the pro-survival Akt pathway. In contrast, F1 isolated from the red flesh genotype BY00P6653, induced apoptosis mainly through the intrinsic mitochondrial pathway upon sustained MAPK-ERK1/2 phosphorylation. The tumor growth-suppression of RL extracts was confirmed in vivo. Moreover, a dose-dependent decrease in lung metastasis was found, even at doses that showed no effect in tumor growth-suppression. These results suggest that peach phenolics may have potential in therapy and chemoprevention of metastatic breast cancer. Specifically chlorogenic and neo-chlorogenic acids, widely distributed among food plants, may be a useful therapeutic tool for targeting multiple cell signaling pathways in the treatment and chemoprevention of metastatic breast cancer.

Noratto Dongo, Giuliana Doris

2008-08-01T23:59:59.000Z

386

Photon damping in cosmic-ray acceleration in active galactic nuclei  

SciTech Connect

The usual assumption of the acceleration of ultra high energy cosmic rays, greater than or equal to 10/sup 18/ eV in quasars, Seyfert galaxies and other active galactic nuclei is challenged on the basis of the photon interactions with the accelerated nucleons. This is similar to the effect of the black body radiation on particles > 10/sup 20/ eV for times of the age of the universe except that the photon spectrum is harder and the energy density greater by approx. = 10/sup 15/. Hence, a single traversal, radial or circumferential, of radiation whose energy density is no greater than the emitted flux will damp an ultra high energy. Hence, it is unlikely that any reasonable configuration of acceleration can void disastrous photon energy loss. A different site for ultra high energy cosmic ray acceleration must be found.

Colgate, S.A.

1983-04-07T23:59:59.000Z

387

Impact of solar activity on climate changes in Athens region, Greece  

E-Print Network (OSTI)

The scope of this work is to study the role that the solar weather plays in terrestrial weather. For this reason we study the effect of the solar activity on the climate changes in Greece. In the current work we look for possible correlation between the solar activity data spanning the years from 1975 to 2000 and the meteorological data from two weather stations based inside the city of Athens, Greece (New Philadelphia) and in greater Athens in the north of Attica (Tatoi area). We examine the annual variations of the average values of six meteorological parameters: temperature, atmospheric pressure, direction and intensity of wind, rainfall and relative air humidity. The solar data include decade variations, within the above period, of the solar irradiance, mean sunspot number between two solar cycles, magnetic cycle influence, and solar UV driving of climate (radio flux).

Gizani, Nectaria A B; Vatikiotis, Leonidas; Zervas, Efthimios

2011-01-01T23:59:59.000Z

388

Calcium mobilization and phosphoinositide turnover in fluoride-activated human neutrophils  

SciTech Connect

Fluoride ion, at concentrations above 10 mM, has been found to activate a superoxide production response in human neutrophils which is strongly dependent on the presence of extracellular calcium. In an attempt to further explore the calcium requirement of fluoride-induced neutrophil activation, intracellular calcium concentrations were monitored through use of the fluorescent calcium probe, Quin 2. Fluoride ion, at concentrations between 10 and 20 mM, was found to elicit a rise in intracellular calcium levels which was characterized by a lag period of 4 to 10 min and a prolonged duration of action (greater than 20 min). In contrast, the chemotactic peptide, formylmethionyl-leucyl-phenylalanine (FMLP), induced a rise in intracellular calcium concentration which peaked within 1 min. Preincubation of cells with 1 ..mu..g/ml pertussis toxin resulted in inhibition of the FMLP-induced response, but not that elicited by fluoride. Furthermore, anion exchange chromatography indicated that inositol phosphate accumulation occurred in fluoride-treated cells in association with calcium mobilization. Recent evidence suggests that the FMLP receptor is coupled to phospholipase C and phosphoinositide turnover through a guanine nucleotide binding protein susceptible to inhibition by pertussis toxin. Present results suggest that fluoride ion may serve to activate this protein in a manner resistant to inhibition by pertussis toxin.

Strnad, C.F.; Wong, K.

1986-05-01T23:59:59.000Z

389

A Crisis in Nepali Student Politics? Analyzing the Gap between Politically Active and Non-Active Students  

E-Print Network (OSTI)

but rather in forming a national consensus, and that the best way to do that was to raise the issue of students’ rights in a unified voice (Hoftun, et al 1999: 38). The student federations were organized according to the different zones of Nepal... to the regional climate of authoritarianism caused by Indira Gandhi’s state of emergency in India. (Hoftun, et al 1999: 86) Peace and Democracy in South Asia, Volume 1, Issue 2, 2005. 25 expected on a nationwide scale, so King Birendra9 ordered a royal...

Snellinger, Amanda

2005-01-01T23:59:59.000Z

390

Advances in the remote sensing of volcanic activity and hazards, with special consideration to applications in developing countries  

Science Conference Proceedings (OSTI)

Applications of remote sensing for studies of volcanic activity and hazards have developed rapidly in the past 40 years. This has facilitated the observation of volcanic processes, such as ground deformation and thermal emission changes, lava flows, ...

G. G. J. Ernst; M. Kervyn; R. M. Teeuw

2008-11-01T23:59:59.000Z

391

Polycystin-1 promotes PKC{alpha}-mediated NF-{kappa}B activation in kidney cells  

Science Conference Proceedings (OSTI)

Polycystin-1 (PC1), the PKD1 gene product, is a membrane receptor which regulates many cell functions, including cell proliferation and apoptosis, both typically increased in cyst lining cells in autosomal dominant polycystic kidney disease. Here we show that PC1 upregulates the NF-{kappa}B signalling pathway in kidney cells to prevent cell death. Human embryonic kidney cell lines (HEK293{sup CTT}), stably expressing a PC1 cytoplasmic terminal tail (CTT), presented increased NF-{kappa}B nuclear levels and NF-{kappa}B-mediated luciferase promoter activity. This, consistently, was reduced in HEK293 cells in which the endogenous PC1 was depleted by RNA interference. CTT-dependent NF-{kappa}B promoter activation was mediated by PKC{alpha} because it was blocked by its specific inhibitor Ro-320432. Furthermore, it was observed that apoptosis, which was increased in PC1-depleted cells, was reduced in HEK293{sup CTT} cells and in porcine kidney LtTA cells expressing a doxycycline-regulated CTT. Staurosporine, a PKC inhibitor, and parthenolide, a NF-{kappa}B inhibitor, significantly reduced the CTT-dependent antiapoptotic effect. These data reveal, therefore, a novel pathway by which polycystin-1 activates a PKC{alpha}-mediated NF-{kappa}B signalling and cell survival.

Banzi, Manuela [Department of Biochemistry and Molecular Biology, University of Ferrara, Ferrara (Italy); Aguiari, Gianluca [Department of Biochemistry and Molecular Biology, University of Ferrara, Ferrara (Italy); Trimi, Viky [Department of Biochemistry and Molecular Biology, University of Ferrara, Ferrara (Italy); Mangolini, Alessandra [Department of Biochemistry and Molecular Biology, University of Ferrara, Ferrara (Italy); Pinton, Paolo [General Pathology, Department of Experimental and Diagnostic Medicine, University of Ferrara, Ferrara (Italy); Witzgall, Ralph [Institute for Molecular and Cellular Anatomy, University of Regensburg, Regensburg (Germany); Rizzuto, Rosario [General Pathology, Department of Experimental and Diagnostic Medicine, University of Ferrara, Ferrara (Italy); Senno, Laura del [Department of Biochemistry and Molecular Biology, University of Ferrara, Ferrara (Italy)]. E-mail: sen@unife.it

2006-11-17T23:59:59.000Z

392

Active hurricane season expected to shut-in higher amount of oil and natural gas production  

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

Active hurricane season expected to shut-in higher amount of Active hurricane season expected to shut-in higher amount of oil and natural gas production An above-normal 2013 hurricane season is expected to cause a median production loss of about 19 million barrels of U.S. crude oil and 46 billion cubic feet of natural gas production in the Gulf of Mexico, according to the new forecast from the U.S. Energy Information Administration. That's about one-third more than the amount of oil and gas production knocked offline during last year's hurricane season. Government weather forecasts predict 13 to 20 named storms will form between June and the end of November, with 7 to 11 of those turning into hurricanes. Production outages in previous hurricane seasons were as high as 107 million barrels of crude oil

393

Can a Long Nanoflare Storm Explain the Observed Emission Measure Distributions in Active Region Cores?  

E-Print Network (OSTI)

All theories that attempt to explain the heating of the high temperature plasma observed in the solar corona are based on short bursts of energy. The intensities and velocities measured in the cores of quiescent active regions, however, can be steady over many hours of observation. One heating scenario that has been proposed to reconcile such observations with impulsive heating models is the "long nanoflare storm," where short duration heating events occur infrequently on many sub-resolutions strands; the emission of the strands is then averaged together to explain the observed steady structures. In this Letter, we examine the emission measure distribution predicted for such a long nanoflare storm by modeling an arcade of strands in an active region core. Comparisons of the computed emission measure distributions with recent observations indicate that that the long nanoflare storm scenario implies greater than 5 times more 1 MK emission than is actually observed for all plausible combinations of loop lengths,...

Mulu-Moore, Fana M; Warren, Harry P

2012-01-01T23:59:59.000Z

394

Reductions in Northeast Refining Activity: Potential Implications for Petroleum Product Markets  

Gasoline and Diesel Fuel Update (EIA)

Reductions in Northeast Reductions in Northeast Refining Activity: Potential Implications for Petroleum Product Markets December 2011 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | Reductions in Northeast Refining Activity: Potential Implications for Petroleum Product Markets i This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views in this report therefore should not be construed as representing those of the U.S. Department of Energy

395

EVALUATION OF ACTIVATION PRODUCTS IN REMAINING IN REMAINING K-, L- AND C-REACTOR STRUCTURES  

SciTech Connect

An analytic model and calculational methodology was previously developed for P-reactor and R-reactor to quantify the radioisotopes present in Savannah River Site (SRS) reactor tanks and the surrounding structural materials as a result of neutron activation of the materials during reactor operation. That methodology has been extended to K-reactor, L-reactor, and C-reactor. The analysis was performed to provide a best-estimate source term input to the Performance Assessment for an in-situ disposition strategy by Site Decommissioning and Demolition (SDD). The reactor structure model developed earlier for the P-reactor and R-reactor analyses was also used for the K-reactor and L-reactor. The model was suitably modified to handle the larger Creactor tank and associated structures. For all reactors, the structure model consisted of 3 annular zones, homogenized by the amount of structural materials in the zone, and 5 horizontal layers. The curie content on an individual radioisotope basis and total basis for each of the regions was determined. A summary of these results are provided herein. The efficacy of this methodology to accurately predict the radioisotopic content of the reactor systems in question has been demonstrated and is documented in Reference 1. As noted in that report, results for one reactor facility cannot be directly extrapolated to other SRS reactors.

Vinson, D.; Webb, R.

2010-09-30T23:59:59.000Z

396

Integrated gasification combined-cycle research development and demonstration activities in the U.S.  

Science Conference Proceedings (OSTI)

The United States Department of Energy (DOE) has selected seven integrated gasification combined-cycle (IGCC) advanced power systems for demonstration in the Clean Coal Technology (CCT) Program. DOE`s Office of Fossil Energy, Morgantown Energy Technology Center, is managing a research development and demonstration (RD&D)program that supports the CCT program, and addresses long-term improvements in support of IGCC technology. This overview briefly describes the CCT projects and the supporting RD&D activities.

Ness, H.M.

1994-12-31T23:59:59.000Z

397

Charge-Separation in Uranium Diazomethane Complexes Leading to C-H Activation and Chemical Transformation  

E-Print Network (OSTI)

Charge-Separation in Uranium Diazomethane Complexes Leading to C-H Activation and Chemical of diphenyldiazomethane with [((t-Bu ArO)3tacn)UIII ] (1) results in an 2 -bound diphenyldiazomethane uranium complex-shell ligand, [((t-Bu ArO)3tacn)UIV (2 -NNCPh2)] (2). Treating Ph2CN2 with a uranium complex that contains

Meyer, Karsten

398

Differences in physical activity and sedentary time in relation to weight in 8-9 year old children.  

E-Print Network (OSTI)

, Burns TL, Torner JC, Willing MC, Warren JJ: Fat- ness, Physical Activity, and Television Viewing in Children during the Adiposity Rebound Period: The Iowa Bone Devel- opment Study. Prev Med 2002, 35:563-571. 12. Rowlands AV, Pilgrim EL, Eston RG...

Purslow, Lisa R; Hill, Claire; Saxton, Jenny; Corder, Kirsten; Wardle, Jane

2008-12-12T23:59:59.000Z

399

Reconciling Apparent Variability in Effects of Biochar Amendment on Soil Enzyme Activities by Assay Optimization  

Science Conference Proceedings (OSTI)

Applying biochar to soils as an ameliorative substance and mechanism for C sequestration has received a great deal of interest in light of the sustained fertility observed in the Terra Preta soils of Brazil. The effects of synthetic biochars on biochemical processes needs to be better understood in order to determine if this is a reasonable practice in managed systems. The biochar studied was formed from the fast-pyrolysis of a switchgrass feedstock. Four soil enzymes were studied: ?-glucosidase, ?-N-acetylglucosaminidase, lipase, and leucine aminopeptidase. Both colorimetric and fluorescent assays were used for ?-glucosidase and ?-N-acetylglucosaminidase. Seven days after biochar was added to microcosms of a Palouse silt loam, the fluorescence-based assays indicated increased activities of the four enzymes, compared to non-amended soil. To clarify the mechanisms of the observed effects,in the absence of soil, purified enzymes or substrates were briefly exposed to biochar and then assayed. Except for ?-N-acetylglucosaminidase, the exposure of substrate to biochar reduced the apparent activity of the remaining three enzymes in vitro, suggesting that sorption reactions between the substrate and biochar either removed the substrate from the assays or impeded the enzyme binding. The activity of purified ?-N-acetylglucosaminidase increased significantly following biochar exposure, suggesting a chemical stimulation of enzyme functioning. We conclude that biochar added to soil acts as a substrate that can stimulate the soil microbial biomass and its activity. Our in vitro study suggests that biochar is not biochemically inert. Biochar amendments are likely to have effects that are currently difficult to predict, and that could impact overall soil function.

Bailey, Vanessa L.; Fansler, Sarah J.; Smith, Jeffery L.; Bolton, Harvey

2011-02-01T23:59:59.000Z

400

LANL participates in the "Next Big Idea" activities on September 15  

NLE Websites -- All DOE Office Websites (Extended Search)

LANL participates in the "Next Big Idea" LANL participates in the "Next Big Idea" Community Connections: Our link to Northern New Mexico Communities Latest Issue:Dec. 2013 - Jan. 2014 All Issues » submit LANL participates in the "Next Big Idea" activities on September 15 The Bradbury Science Museum is holding activities to dazzle and delight. September 1, 2012 dummy image Read our archives Contacts Editor Linda Anderman Email Community Programs Office Kurt Steinhaus Email There will be a demonstration by guest scientist Stan Cohen of his "tool for making computers that can sense and control more of the physical world than a desktop computer." Fall is around the corner, and so is Los Alamos' annual "Next Big Idea" event on Saturday, September 15. To help promote the unique and

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401

Support of Activities of the NAS in Relation to the Radiation Effects Research Foundation  

Science Conference Proceedings (OSTI)

The National Academies (NA) provides support for the activities related to the long-term follow up of the health of the survivors of the atomic bombings of Hiroshima and Nagasaki being conducted by the Radiation Effects Research Foundation (RERF) laboratories in Hiroshima and Nagasaki, Japan. The NA serves as scientific and administrative liaison between the U.S. Department of Energy (DOE) and RERF, and performs tasks in the areas of scientific oversight, information/public interface, fiscal oversight, and personnel management. The project includes recruitment and support of approximately 10 NA employees who work at RERF in Japan. Specific activities are performed consistent with the cooperative agreement’s Statement of Work between DOE and NA and consistent with an Annual Work Plan developed by DOE and NA.

Douple, Evan B.

2006-05-31T23:59:59.000Z

402

Geographic Information Systems in Support of Wind Energy Activities at NREL: Preprint  

DOE Green Energy (OSTI)

The National Renewable Energy Laboratory (NREL) uses Geographic Information Systems (GIS) to further the development of wind energy resources in support of the U.S. Department of Energy (DOE) Wind Energy Program and its Wind Powering America Initiative. Some of the elements of NREL's GIS data used in wind energy activities include wind measurement sites, transmission lines, federal facility information, and modeled wind resources. More complex GIS analyses can define relationships among the mapped wind energy resources, potential energy load characterization, and utility integration problems. A GIS is an outstanding tool for wind energy activities because data can be readily updated and the results of the GIS analyses can be expressed as charts, tables, and maps. These outputs are in digital formats that allow the results of GIS analyses to be quickly and efficiently distributed to the wind energy industry.

Heimiller, D. M.; Haymes, S. R.

2001-09-18T23:59:59.000Z

403

Red-tailed Hawk home range, habitat use, and activity patterns in north-central Puerto Rico.  

E-Print Network (OSTI)

??I determined abundance, movement and activity patterns of the Red-tailed Hawk (Buteo jamaicensis jamaicensis, RTHA) in Río Abajo Forest, Puerto Rico and surrounding lands during… (more)

Llerandi-Román, Iván C.

2006-01-01T23:59:59.000Z

404

Beams, brightness, and background: Using active spectroscopy techniques for precision measurements in fusion plasma research  

Science Conference Proceedings (OSTI)

The use of an injected neutral beam-either a dedicated diagnostic beam or the main heating beams-to localize and enhance plasma spectroscopic measurements can be exploited for a number of key physics issues in magnetic confinement fusion research, yielding detailed profile information on thermal and fast ion parameters, the radial electric field, plasma current density, and turbulent transport. The ability to make these measurements has played a significant role in much of our recent progress in the scientific understanding of fusion plasmas. The measurements can utilize emission from excited state transitions either from plasma ions or from the beam atoms themselves. The primary requirement is that the beam 'probe' interacts with the plasma in a known fashion. Advantages of active spectroscopy include high spatial resolution due to the enhanced localization of the emission and the use of appropriate imaging optics, background rejection through the appropriate modulation and timing of the beam and emission collection/detection system, and the ability of the beam to populate emitter states that are either nonexistent or too dim to utilize effectively in the case of standard or passive spectroscopy. In addition, some active techniques offer the diagnostician unique information because of the specific quantum physics responsible for the emission. This paper will describe the general principles behind a successful active spectroscopic measurement, emphasize specific techniques that facilitate the measurements and include several successful examples of their implementation, briefly touching on some of the more important physics results. It concludes with a few remarks about the relevance and requirements of active spectroscopic techniques for future burning plasma experiments.

Thomas, Dan M. [General Atomics, P.O. Box 85608, San Diego, California 92186-5608 (United States)

2012-05-15T23:59:59.000Z

405

Active magnetic regenerator  

SciTech Connect

The disclosure is directed to an active magnetic regenerator apparatus and method. Brayton, Stirling, Ericsson, and Carnot cycles and the like may be utilized in an active magnetic regenerator to provide efficient refrigeration over relatively large temperature ranges.

Barclay, John A. (Los Alamos, NM); Steyert, William A. (Los Alamos, NM)

1982-01-01T23:59:59.000Z

406

Windows activation Sergei Striganov  

E-Print Network (OSTI)

Windows activation Sergei Striganov Fermilab July 25, 2007 #12;Beam windows residual activity of irradiated object should be much larger than -ray interaction length (3.7 cm in windows). In such model activation is proportional to star density. For beam size much smaller windows transverse dimension

McDonald, Kirk

407

Recent International R&D Activities in the Extraction of Uranium from Seawater  

SciTech Connect

A literature survey has been conducted to collect information on the International R&D activities in the extraction of uranium from seawater for the period from the 1960s till the year of 2010. The reported activities, on both the laboratory scale bench experiments and the large scale marine experiments, were summarized by country/region in this report. Among all countries where such activities have been reported, Japan has carried out the most advanced large scale marine experiments with the amidoxime-based system, and achieved the collection efficiency (1.5 g-U/kg-adsorbent for 30 days soaking in the ocean) that could justify the development of industrial scale marine systems to produce uranium from seawater at the price competitive with those from conventional uranium resources. R&D opportunities are discussed for improving the system performance (selectivity for uranium, loading capacity, chemical stability and mechanical durability in the sorption-elution cycle, and sorption kinetics) and making the collection of uranium from seawater more economically competitive.

Rao, Linfeng

2010-03-15T23:59:59.000Z

408

Effects of Globally Waste Disturbing Activities on Gas Generation, Retention, and Release in Hanford Waste Tanks  

SciTech Connect

Various operations are authorized in Hanford single- and double-shell tanks that disturb all or a large fraction of the waste. These globally waste-disturbing activities have the potential to release a large fraction of the retained flammable gas and to affect future gas generation, retention, and release behavior. This report presents analyses of the expected flammable gas release mechanisms and the potential release rates and volumes resulting from these activities. The background of the flammable gas safety issue at Hanford is summarized, as is the current understanding of gas generation, retention, and release phenomena. Considerations for gas monitoring and assessment of the potential for changes in tank classification and steady-state flammability are given.

Stewart, Charles W.; Fountain, Matthew S.; Huckaby, James L.; Mahoney, Lenna A.; Meyer, Perry A.; Wells, Beric E.

2005-08-02T23:59:59.000Z

409

Electrical activation and spin coherence of ultra low doseantimony implants in silicon  

DOE Green Energy (OSTI)

We implanted ultra low doses (0.2 to 2 x 10{sup 11} cm{sup -2}) of Sb ions into isotopically enriched {sup 28}Si, and probed electrical activation and electron spin relaxation after rapid thermal annealing. Strong segregation of dopants towards both Si{sub 3}N{sub 4} and SiO{sub 2} interfaces limits electrical activation. Pulsed Electron Spin Resonance shows that spin echo decay is sensitive to the dopant profiles, and the interface quality. A spin decoherence time, T{sub 2}, of 1.5 ms is found for profiles peaking 25 nm below a Si/SiO{sub 2} interface, increasing to 2.1 ms when the surface is passivated with hydrogen. These measurements provide benchmark data for the development of devices in which quantum information is encoded in donor electron spins.

Schenkel, T.; Tyryshkin, A.M.; de Sousa, R.; Whaley, K.B.; Bokor,J.; Liddle, J.A.; Persaud, A.; Shangkuan, J.; Chakarov, I.; Lyon, S.A.

2005-07-13T23:59:59.000Z

410

Indonesia-Bringing a Range of Supported Mitigation Activities in Selected  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Indonesia-Bringing a Range of Supported Mitigation Activities in Selected Countries to the Next Level Jump to: navigation, search Name Indonesia-Bringing a Range of Supported Mitigation Activities in Selected Countries to the Next Level Agency/Company /Organization Energy Research Centre of the Netherlands (ECN), Ecofys Sector Climate Focus Area Renewable Energy, Agriculture, People and Policy Topics Low emission development planning, Policies/deployment programs Website http://www.ecn.nl/docs/library Program Start 2011 Program End 2014 Country Indonesia South-Eastern Asia References ECN[1] Ecofys[2] Program Overview This project runs from March 2012 to December 2014, and is a collaboration

411

Myelin Activates FAK/Akt/NF-kB Pathways and Provokes CR3-Dependent Inflammatory Response in Murine  

E-Print Network (OSTI)

Myelin Activates FAK/Akt/NF-kB Pathways and Provokes CR3-Dependent Inflammatory Response in Murine is through activation of FAK/PI3K/Akt/NF-kB signaling pathways and CR3 contributes to myelin-induced PI3K/Akt/NF-kB) are not able to activate NF-kB signaling pathway. In conclusion, our results demonstrate a crucial role

Fan, Jianqing

412

Teacher Participation in Professional Activities and Job Satisfaction: Prevalence and Associative Relationship to Retention for High School Science Teachers  

E-Print Network (OSTI)

In this dissertation, I used survey response data from 385 science teachers situated in 50 randomly selected Texas high schools to describe the prevalence of high school science teacher participation in professional activities and levels of job satisfaction. Using relative risk statistics, I determined the direction and significance of multiple associative relationships involving teachers’ participation in professional activities, satisfaction with working conditions, and retention state. Finally, I used these results to make specific policy recommendations. Teachers participate in diverse professional activities. Descriptive analyses of responses from teachers revealed higher rates of participation in development activities than in maintenance or management activities. Relative risk statistics exposed several positive and significant associative relationships between participation in specific professional activities (i.e., observation of other science teachers, involvement in a science education study group) and teacher retention. Additionally, results of risk analyses suggest teacher participation in maintenance activities, more than development or management, is associated with teacher retention. Researchers consider job satisfaction an important factor in teacher retention. Descriptive analyses revealed high rates of satisfaction with occupational choice and the interpersonal relationships shared with professional colleagues and administrators. Conversely, teachers expressed low rates of satisfaction with their school’s science laboratory facilities and equipment or support for student involvement in informal science activities. Results of risk analyses exposed no positive associations between job satisfaction and retention for teachers. The interaction between teacher participation in professional activities and satisfaction with occupational choice was also examined. Descriptive analyses of responses from retained teachers (n=291) revealed high rates of participation in development activities in comparison to maintenance or management activities. Results of risk analyses exposed both positive and negative associations between teacher participation in professional activities and satisfaction with occupational choice, suggesting an interactive effect exists between participation in activities and satisfaction with occupational choice on retention. I used results from analyses to make state and school level policy recommendations, which included: (a) development of state standards for classroom equipment and facilities; (b) greater state involvement in defining teacher professional activities; and, (c) increasing school support for teacher participation in maintenance activities.

Bozeman, Todd Dane

2010-12-01T23:59:59.000Z

413

Silvicultural Activities in Relation to Water Quality in Texas: An Assesment of Potential Problems and Solutions  

E-Print Network (OSTI)

Southern forests are expected to supply a large portion of the Nation's future timber requirement. Projected demands on southern forests continue to exceed allowable cut. As an outgrowth of this demand, intensive management of pine forests enabled the South to produce 45 percent of the Nation's timber harvest in 1970 (USDA, Forest Service, 1973). The Southern Forest Resource Analysis Committee (1969) stated that, if projected timber needs of the year 2000 are to be met, at least ten million acres of bare or poorly stocked land must be planted with pine by 1985 and another twenty million acres converted from low-grade hardwoods to pine. The challenge facing forestry in the South is how to meet this increased demand and maintain an acceptable forest environment in the face of increased taxes, rising labor and equipment costs and predicted petroleum shortages. Undisturbed forests are generally recognized as primary sources of high quality water. Although the Federal Water Pollution Control Act Amendments of 1972 (Public Law No. 92-500) make pollution from forest practices increasingly more important, the effects of these practices on water quality are not known for East Texas. The quality of streamflow from forested watersheds fluctuates constantly in response to natural stress, and can be influenced greatly by man's activities. Forest management practices can potentially influence the following water quality parameters: (1) sediment, (2) nutrients, (3) temperature, (4) dissolved oxygen/organic matter, and (5) introduced chemicals. It must be realized from the onset that sediment due to geologic erosion is a natural component of fresh water streams and that high concentrations may have occurred naturally for short periods due to perturbations in the ecosystem such as wildfires. Sediment is not necessarily a pollutant and only becomes one when it can be demonstrated that it is exceeding natural levels and is interfering with the beneficial use of water. A certain amount of sediment and nutrients are needed in Gulf Bays and Estuaries to maintain their productivity (Mathewson and Minter, 1976; Diener, 1964; Ketchum, 1967). Texas does not have a stream water quality standard for sediment and due to the complexities involved will probably not develop one. Thus, sediment as used in this report, becomes important: (1) as a carrier of plant nutrients and forest chemicals, and (2) in that practices which reduce sediment loss will usually reduce nutrient, organic matter and introduced chemical losses and prevent water temperature increases, as well. This report is the result of an interagency contract between Texas Department of Water Resources, Texas Agricultural Experiment Station and Texas Water Resources Institute to: (1) develop an overview of commercial forests and forestry operations in Texas, (2) identify, describe and characterize control strategies for nonpoint sources of pollution from silvicultural activities, and (3) develop and demonstrate a methodology for selecting control strategies in given problem situations. The following topics are covered: (1) an overview of forestry in East Texas, (2) silvicultural practices and nonpoint sources of pollution, (3) control strategies, (4) methodology for the selection of control strategies, (5) institutional aspects of controlling silvicultural nonpoint source pollution, (6) ongoing research and research needs, and (7) hydrology of East Texas. It is important to recognize that this report does not specify that nonpoint pollution from forestlands in East Texas is a problem. Likewise, the report does not set pollution control goals or criteria that should be met by a control plan, since this is the responsibility of the State. In areas where a potential nonpoint pollution problem exists; the suggested control strategies should be useful in selecting control measures that are appropriate to the special conditions imposed by differences in climate, soil, topography, and forest practice.

Blackburn, W. H.; Hickman, C. A.; deSteiguer, J. E.; Jackson, B. D.; Blume, T. A.; DeHaven, M. G.

1978-02-01T23:59:59.000Z

414

Probing Oxygen Activation Sites in Two Flavoprotein Oxidases Using Chloride as an Oxygen Surrogate  

SciTech Connect

A single basic residue above the si-face of the flavin ring is the site of oxygen activation in glucose oxidase (GOX) (His516) and monomeric sarcosine oxidase (MSOX) (Lys265). Crystal structures of both flavoenzymes exhibit a small pocket at the oxygen activation site that might provide a preorganized binding site for superoxide anion, an obligatory intermediate in the two-electron reduction of oxygen. Chloride binds at these polar oxygen activation sites, as judged by solution and structural studies. First, chloride forms spectrally detectable complexes with GOX and MSOX. The protonated form of His516 is required for tight binding of chloride to oxidized GOX and for rapid reaction of reduced GOX with oxygen. Formation of a binary MSOX-chloride complex requires Lys265 and is not observed with Lys265Met. Binding of chloride to MSOX does not affect the binding of a sarcosine analogue (MTA, methylthioactetate) above the re-face of the flavin ring. Definitive evidence is provided by crystal structures determined for a binary MSOX-chloride complex and a ternary MSOX-chloride-MTA complex. Chloride binds in the small pocket at a position otherwise occupied by a water molecule and forms hydrogen bonds to four ligands that are arranged in approximate tetrahedral geometry: Lys265:NZ, Arg49:NH1, and two water molecules, one of which is hydrogen bonded to FAD:N5. The results show that chloride (i) acts as an oxygen surrogate, (ii) is an effective probe of polar oxygen activation sites, and (iii) provides a valuable complementary tool to the xenon gas method that is used to map nonpolar oxygen-binding cavities.

Kommoju, Phaneeswara-Rao; Chen, Zhi-wei; Bruckner, Robert C.; Mathews, F. Scott; Jorns, Marilyn Schuman (Drexel-MED); (St. Louis-MED); (WU-MED)

2011-08-16T23:59:59.000Z

415

Integrated gasification combined-cycle research development and demonstration activities in the US  

Science Conference Proceedings (OSTI)

The United States Department of Energy (DOE)`s Office of Fossil Energy, Morgantown Energy Technology Center, is managing a research development and demonstration (RD&D) program that supports the commercialization of integrated gasification combined-cycle (IGCC) advanced power systems. This overview briefly describes the supporting RD&D activities and the IGCC projects selected for demonstration in the Clean Coal Technology (CCT) Program.

Ness, H.M.; Brdar, R.D.

1996-09-01T23:59:59.000Z

416

1981 national survey of compensation paid scientists and engineers engaged in research and development activities  

Science Conference Proceedings (OSTI)

The results of a compensation survey conducted by the Columbus Laboratories of Battelle are presented. The survey was entitled A National Survey of Compensation Paid to Scientists and Engineers Engaged in Research and Development Activities. Information is included on the: sampling procedures; basic data for survey analysis; beginning salaries for recent graduates with bachelor, master, or doctorate degrees; salary trends; geographic analysis; interpretation of results; and salary tables. (LCL)

Not Available

1981-12-01T23:59:59.000Z

417

Protease activated receptors 1 and 4 sensitize TRPV1 in nociceptive neurones  

E-Print Network (OSTI)

/streptomycin solution and 1% L-gluta- mine, GIBCO), 10 ?M cytosine arabinoside (Sigma) and, where appropriate, 50 ng/ml nerve growth factor (Pro- mega) or 100 ng/ml neurturin or GDNF (Peprotech). Neu- rones were plated onto glass coverslips (BDH, UK), coated with 10 ?g... Superfrost/Plus slides (BDH, UK). Sections were dewaxed in xylene, incubated in 0.3% hydrogen peroxide in methanol to quench endo- genous peroxidase activity and hydrated through an ethanol series. Sections were then blocked in 5% normal goat serum in 0.01 M...

Vellani, Vittorio; Kinsey, Anna M; Prandini, Massimiliano; Hechtfischer, Sabine C; Reeh, Peter; Magherini, Pier C; Giacomoni, Chiara; McNaughton, Peter A

2010-09-27T23:59:59.000Z

418

Determination of contamination in rare earth materials by promptgamma activation analysis (PGAA)  

SciTech Connect

Prompt gamma activation analysis (PGAA) has been used to detect and quantify impurities in the analyses of rare earth (RE) oxides. The analytical results are discussed with respect to the importance of having a thorough identification and understanding of contaminant elements in these compounds regarding the function of the materials in their various applications. Also, the importance of using PGAA to analyze materials in support of other physico-chemical studies of the materials is discussed, including the study of extremely low concentrations of ions such as the rare earth ions themselves in bulk material matrices.

Perry, D.L.; English, G.A.; Firestone, R.B.; Molnar, G.L.; Revay,Zs.

2004-11-09T23:59:59.000Z

419

Defining the active form of ribonucleotide reductase from Saccharomyces cerevisiae in vitro and in vivo  

E-Print Network (OSTI)

Ribonucleotide reductase (RNR) catalyzes the conversion of ribonucleotides to deoxyribonucleotides. Saccharomyces cerevisiae RNR is a class I RNR composed of a dimeric large subunit (RI), containing the active site and ...

Perlstein, Deborah Leigh

2005-01-01T23:59:59.000Z

420

Activation and thermal stability of ultra-shallow B{sup +}-implants in Ge  

Science Conference Proceedings (OSTI)

The activation and thermal stability of ultra-shallow B{sup +} implants in crystalline (c-Ge) and preamorphized Ge (PA-Ge) following rapid thermal annealing was investigated using micro Hall effect and ion beam analysis techniques. The residual implanted dose of ultra-shallow B{sup +} implants in Ge was characterized using elastic recoil detection and was determined to correlate well with simulations with a dose loss of 23.2%, 21.4%, and 17.6% due to ion backscattering for 2, 4, and 6 keV implants in Ge, respectively. The electrical activation of ultra-shallow B{sup +} implants at 2, 4, and 6 keV to fluences ranging from 5.0 Multiplication-Sign 10{sup 13} to 5.0 Multiplication-Sign 10{sup 15} cm{sup -2} was studied using micro Hall effect measurements after annealing at 400-600 Degree-Sign C for 60 s. For both c-Ge and PA-Ge, a large fraction of the implanted dose is rendered inactive due to the formation of a presumable B-Ge cluster. The B lattice location in samples annealed at 400 Degree-Sign C for 60 s was characterized by channeling analysis with a 650 keV H{sup +} beam by utilizing the {sup 11}B(p, {alpha})2{alpha} nuclear reaction and confirmed the large fraction of off-lattice B for both c-Ge and PA-Ge. Within the investigated annealing range, no significant change in activation was observed. An increase in the fraction of activated dopant was observed with increasing energy which suggests that the surface proximity and the local point defect environment has a strong impact on B activation in Ge. The results suggest the presence of an inactive B-Ge cluster for ultra-shallow implants in both c-Ge and PA-Ge that remains stable upon annealing for temperatures up to 600 Degree-Sign C.

Yates, B. R.; Darby, B. L.; Jones, K. S. [Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611 (United States); Petersen, D. H. [DTU Nanotech, Department of Micro- and Nanotechnology, Technical University of Denmark, DK-2800 Kgs. Lyngby (Denmark); Hansen, O. [DTU Nanotech, Department of Micro- and Nanotechnology, Technical University of Denmark, DK-2800 Kgs. Lyngby (Denmark); CINF, Center for Individual Nanoparticle Functionality, Technical University of Denmark, DK-2800 Kongens Lyngby (Denmark); Lin, R.; Nielsen, P. F. [CAPRES A/S, Scion-DTU, DK-2800 Kgs. Lyngby (Denmark); Romano, L. [IMM-CNR MATIS and Dipartimento di Fisica e Astronomia, Universita di Catania, Via S. Sofia 64, I-95123 Catania (Italy); Doyle, B. L. [Sandia National Laboratories, MS-1056, Albuquerque, New Mexico 87185 (United States); Kontos, A. [Applied Materials, Gloucester, Massachusetts 01930 (United States)

2012-12-15T23:59:59.000Z

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421

OBSERVATIONS OF MULTIPLE SURGES ASSOCIATED WITH MAGNETIC ACTIVITIES IN AR 10484 ON 2003 OCTOBER 25  

SciTech Connect

We present a multi-wavelength study of recurrent surges observed in H{alpha}, UV (Solar and Heliospheric Observatory (SOHO)/EIT), and Radio (Learmonth, Australia) from the super-active region NOAA 10484 on 2003 October 25. Several bright structures visible in H{alpha} and UV corresponding to subflares are also observed at the base of each surge. Type III bursts are triggered and RHESSI X-ray sources are evident with surge activity. The major surge consists of bunches of ejective paths forming a fan-shaped region with an angular size of ( Almost-Equal-To 65 Degree-Sign ) during its maximum phase. The ejection speed reaches up to {approx}200 km s{sup -1}. The SOHO/Michelson Doppler Imager magnetograms reveal that a large dipole emerges from the east side of the active region on 2003 October 18-20, a few days before the surges. On 2003 October 25, the major sunspots were surrounded by 'moat regions' with moving magnetic features (MMFs). Parasitic fragmented positive polarities were pushed by the ambient dispersion motion of the MMFs and annihilated with negative polarities at the borders of the moat region of the following spot to produce flares and surges. A topology analysis of the global Sun using Potential Field Source Surface shows that the fan structures visible in the EIT 171 A images follow magnetic field lines connecting the present active region to a preceding active region in the southeast. Radio observations of Type III bursts indicate that they are coincident with the surges, suggesting that magnetic reconnection is the driver mechanism. The magnetic energy released by the reconnection is transformed into plasma heating and provides the kinetic energy for the ejections. A lack of a radio signature in the high corona suggests that the surges are confined to follow the closed field lines in the fans. We conclude that these cool surges may have some local heating effects in the closed loops, but probably play a minor role in global coronal heating and the surge material does not escape to the solar wind.

Uddin, Wahab; Srivastava, Abhishek K. [Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital (India); Schmieder, B. [LESIA, Observatoire de Paris-Meudon, 92195, Meudon Cedex (France); Chandra, R.; Bisht, S. [Department of Physics, DSB Campus, Kumaun University, Nainital 263002 (India); Kumar, Pankaj, E-mail: wahab@aries.res.in [Korea Astronomy and Space Science Institute (KASI), Daejeon 305-348 (Korea, Republic of)

2012-06-10T23:59:59.000Z

422

U.S. Maximum Number of Active Crews Engaged in Seismic Surveying (Number of  

Gasoline and Diesel Fuel Update (EIA)

Maximum Number of Active Crews Engaged in Seismic Surveying (Number of Elements) Maximum Number of Active Crews Engaged in Seismic Surveying (Number of Elements) U.S. Maximum Number of Active Crews Engaged in Seismic Surveying (Number of Elements) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2000 0 0 62 63 59 63 58 61 59 63 62 65 2001 61 61 63 65 64 60 58 56 54 58 59 58 2002 54 57 54 50 51 50 52 50 56 57 50 43 2003 40 41 41 40 38 39 41 43 39 39 38 42 2004 43 45 45 45 44 49 48 49 48 48 49 50 2005 52 53 51 50 55 57 54 55 56 57 57 58 2006 55 57 59 58 58 57 66 62 63 64 65 64 2007 63 63 68 71 70 69 69 71 73 77 79 75 2008 76 77 75 72 73 73 72 72 NA 77 72 73 2009 75 76 72 70 65 60 61 60 60 63 62 63 2010 64 65 63 66 67 67 67 65 64 62 62 62

423

Comparative aspects of cholesterol metabolism and lecithin:cholesterol acyltransferase activity in dogs and cats  

E-Print Network (OSTI)

Little research has focused on the relationship between lecithin:cholesterol acyltransferase (LCAT) activity and cholesterol metabolism in dogs and cats. To study weight loss and cholesterol metabolism in dogs, four experimental weight-loss diets were fed to 12 obese female beagles for 8 wk in a partial crossover design (n = 6). High- (HGI) or low-glycemic index (LGI) starch and diacylglycerol or triacylglycerol oil were combined to compose diets with similar fatty acid (FA) profiles. Body weight was measured weekly. Fasted blood samples were drawn at wk1, wk4, and wk8 to measure plasma total (TC), unesterified (UC), and esterified cholesterol (EC) concentrations, LCAT activity, and FA composition of the phospholipid (PL) and EC fractions. All groups lost weight. UC increased from wk1 to wk4 (p < 0.05). LCAT activity increased from wk1 to wk4 and remained elevated at wk8 (p < 0.05). Plasma PL FA profiles reflected the diets fed with few diet or time effects. Plasma EC FA profiles reflected the specificity of LCAT for linoleic acid (LA) with minimal diet or time effects. We conclude that weight reduction in dogs occurs in conjunction with increased LCAT activity and altered plasma cholesterol fractions but not changes in plasma PL or EC FA profiles. To measure the activity and demonstrate the FA specificity of LCAT in felines fed varying types of fat, 29 female cats were fed diets enriched with high-oleic sunflower (n = 9), menhaden fish (n = 10), or safflower (n = 10) oil (8g oil/100g kibble) for 4 wk. Fasted blood samples were drawn at d0, d14, and d28 for determination of the blood parameters mentioned previously. LCAT and TC showed no time or diet effects. UC decreased at d28 compared to d0 and d14, while EC increased at d28 compared to d0 and d14 (all p < 0.05). Plasma EC FA profiles reflected the specificity of LCAT for LA with many diet and time effects but contained no docosahexanoic acid (DHA). We conclude that feline LCAT has no measurable affinity for DHA, but both feline and canine LCAT demonstrated specificity for LA regardless of diet fed.

Angell, Rebecca Joyce

2007-12-01T23:59:59.000Z

424

Coupling active and sterile neutrinos in the cosmon plus seesaw framework  

E-Print Network (OSTI)

The cosmological evolution of neutrino energy densities driven by cosmon-type field equations is introduced assuming that active and sterile neutrinos are intrinsically connected by cosmon fields through the {\\em seesaw} mechanism. Interpreting sterile neutrinos as dark matter adiabatically coupled with dark energy results in a natural decoupling of (active) mass varying neutrino (MaVaN) equations. Identifying the dimensionless scale of the {\\em seesaw} mechanism, $m/M$, with a power of the cosmological scale factor, $a$, allows for embedding the resulting masses into the generalized Chaplygin gas (GCG) scenario for the dark sector. Without additional assumptions, our findings establish a precise connection among three distinct frameworks: the cosmon field dynamics for MaVaN's, the {\\em seesaw} mechanism for dynamical mass generation and the GCG scenario. Our results also corroborate with previous assertions that mass varying particles can be the right responsible for the stability issue and for the cosmic ac...

Bernardini, Alex E

2009-01-01T23:59:59.000Z

425

Coupling active and sterile neutrinos in the cosmon plus seesaw framework  

E-Print Network (OSTI)

The cosmological evolution of neutrino energy densities driven by cosmon-type field equations is introduced assuming that active and sterile neutrinos are intrinsically connected by cosmon fields through the {\\em seesaw} mechanism. Interpreting sterile neutrinos as dark matter adiabatically coupled with dark energy results in a natural decoupling of (active) mass varying neutrino (MaVaN) equations. Identifying the dimensionless scale of the {\\em seesaw} mechanism, $m/M$, with a power of the cosmological scale factor, $a$, allows for embedding the resulting masses into the generalized Chaplygin gas (GCG) scenario for the dark sector. Without additional assumptions, our findings establish a precise connection among three distinct frameworks: the cosmon field dynamics for MaVaN's, the {\\em seesaw} mechanism for dynamical mass generation and the GCG scenario. Our results also corroborate with previous assertions that mass varying particles can be the right responsible for the stability issue and for the cosmic acceleration of the universe.

Alex E. Bernardini

2009-11-02T23:59:59.000Z

426

Free Magnetic Energy in Solar Active Regions above the Minimum-Energy Relaxed State  

E-Print Network (OSTI)

To understand the physics of solar flares, including the local reorganisation of the magnetic field and the acceleration of energetic particles, we have first to estimate the free magnetic energy available for such phenomena, which can be converted into kinetic and thermal energy. The free magnetic energy is the excess energy of a magnetic configuration compared to the minimum-energy state, which is a linear force-free field if the magnetic helicity of the configuration is conserved. We investigate the values of the free magnetic energy estimated from either the excess energy in extrapolated fields or the magnetic virial theorem. For four different active regions, we have reconstructed the nonlinear force-free field and the linear force-free field corresponding to the minimum-energy state. The free magnetic energies are then computed. From the energy budget and the observed magnetic activity in the active region, we conclude that the free energy above the minimum-energy state gives a better estimate and more insights into the flare process than the free energy above the potential field state.

S. Regnier; E. R. Priest

2008-05-12T23:59:59.000Z

427

Free Magnetic Energy in Solar Active Regions above the Minimum-Energy Relaxed State  

E-Print Network (OSTI)

To understand the physics of solar flares, including the local reorganisation of the magnetic field and the acceleration of energetic particles, we have first to estimate the free magnetic energy available for such phenomena, which can be converted into kinetic and thermal energy. The free magnetic energy is the excess energy of a magnetic configuration compared to the minimum-energy state, which is a linear force-free field if the magnetic helicity of the configuration is conserved. We investigate the values of the free magnetic energy estimated from either the excess energy in extrapolated fields or the magnetic virial theorem. For four different active regions, we have reconstructed the nonlinear force-free field and the linear force-free field corresponding to the minimum-energy state. The free magnetic energies are then computed. From the energy budget and the observed magnetic activity in the active region, we conclude that the free energy above the minimum-energy state gives a better estimate and more ...

Régnier, S

2008-01-01T23:59:59.000Z

428

Oil and gas technology transfer activities and potential in eight major producing states. Volume 1  

Science Conference Proceedings (OSTI)

In 1990, the Interstate Oil and Gas Compact Commission (the Compact) performed a study that identified the structure and deficiencies of the system by which oil and gas producers receive information about the potential of new technologies and communicate their problems and technology needs back to the research community. The conclusions of that work were that major integrated companies have significantly more and better sources of technology information than independent producers. The majors also have significantly better mechanisms for communicating problems to the research and development (R&D) community. As a consequence, the Compact recommended analyzing potential mechanisms to improve technology transfer channels for independents and to accelerate independents acceptance and use of existing and emerging technologies. Building on this work, the Compact, with a grant from the US Department Energy, has reviewed specific technology transfer organizations in each of eight major oil producing states to identify specific R&D and technology transfer organizations, characterize their existing activities, and identify potential future activities that could be performed to enhance technology transfer to oil and gas producers. The profiles were developed based on information received from organizations,follow-up interviews, site visit and conversations, and participation in their sponsored technology transfer activities. The results of this effort are reported in this volume. In addition, the Compact has also developed a framework for the development of evaluation methodologies to determine the effectiveness of technology transfer programs in performing their intended functions and in achieving desired impacts impacts in the producing community. The results of that work are provided in a separate volume.

Not Available

1993-07-01T23:59:59.000Z

429

p38 mitogen-activated protein kinase plays a key role in regulating MAPKAPK2 expression  

Science Conference Proceedings (OSTI)

One of three major families of the mitogen-activated kinases (MAPK), p38 as well as JNK, has been shown to transduce extracellular stress stimuli into cellular responses by phospho-relay cascades. Among p38 families, p38{alpha} is a widely characterized isoform and the biological phenomena are explained by its kinase activity regulating functions of its downstream substrates. However, its specific contributions to each phenomenon are yet not fully elucidated. For better understanding of the role of MAPKs, especially p38{alpha}, we utilized newly established mouse fibroblast cell lines originated from a p38{alpha} null mouse, namely, a parental cell line without p38{alpha} gene locus, knockout of p38{alpha} (KOP), Zeosin-resistant (ZKOP), revertant of p38{alpha} (RKOP), and Exip revertant (EKOP). EKOP is smaller in size but grows faster than the others. Although comparable amounts of ERK and JNK are expressed in each cell line, ERK is highly phosphorylated in EKOP even in normal culture conditions. Serum stimulation after serum starvation led to ERK phosphorylation in RKOP and ZKOP, but not in EKOP as much. On the contrary, relative phosphorylation level of JNK to total JNK in response to UV was low in RKOP. And its phosphorylation as well as total JNK is slightly lower in EKOP. RKOP is less sensitive to UV irradiation as judged by the survival rate. Stress response upon UV or sorbitol stimuli, leading to mitogen activate protein kinase activated kinase 2 (MAPKAPK2) phosphorylation, was only observed in RKOP. Further experiments reveal that MAPKAPK2 expression is largely suppressed in ZKOP and EKOP. Its expression was recovered by re-introduction of p38{alpha}. The loss of MAPKAPK2 expression accompanied by the defect of p38{alpha} is confirmed in an embryonic extract prepared from p38{alpha} null mice. These data demonstrate that p38 signal pathway is regulated not only by phosphorylation but also by modulation of the expression of its component. Together, we have established cell lines that can be used in analyzing the functions of MAPKs, especially p38{alpha}, and show that p38 is indispensable for MAPKAPK2 expression.

Sudo, Tatsuhiko [Antibiotics Laboratory and Bioarchitect Research Group, DRI, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)]. E-mail: sudo@riken.jp; Kawai, Kayoko [Antibiotics Laboratory and Bioarchitect Research Group, DRI, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Saitama, Saitama 338-8570 (Japan); Matsuzaki, Hiroshi [Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Saitama, Saitama 338-8570 (Japan); Osada, Hiroyuki [Antibiotics Laboratory and Bioarchitect Research Group, DRI, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Saitama, Saitama 338-8570 (Japan)

2005-11-18T23:59:59.000Z

430

Catalysis and activation of magic states in fault-tolerant architectures  

Science Conference Proceedings (OSTI)

In many architectures for fault-tolerant quantum computing universality is achieved by a combination of Clifford group unitary operators and preparation of suitable nonstabilizer states, the so-called magic states. Universality is possible even for some fairly noisy nonstabilizer states, as distillation can convert many noisy copies into fewer purer magic states. Here we propose protocols that exploit multiple species of magic states in surprising ways. These protocols provide examples of previously unobserved phenomena that are analogous to catalysis and activation well known in entanglement theory.

Campbell, Earl T. [Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT (United Kingdom) and Institute of Physics and Astronomy, University of Potsdam, D-14476 Potsdam (Germany)

2011-03-15T23:59:59.000Z

431

Spectral Analysis of Station Pressure as an Indicator of Climatological Variations in Synoptic-Scale Activity in the Eastern United States  

Science Conference Proceedings (OSTI)

A substantial decline in North American cyclone and anticyclone activity has been documented by several recent studies based on counts of disturbance tracks. An independent method of assessing long-term trends in synoptic-scale activity based on ...

David A. Barber; Jerry M. Davis; Allen J. Riordan

1984-02-01T23:59:59.000Z

432

Benzene's metabolites alter c-MYB activity via reactive oxygen species in HD3 cells  

Science Conference Proceedings (OSTI)

Benzene is a known leukemogen that is metabolized to form reactive intermediates and reactive oxygen species (ROS). The c-Myb oncoprotein is a transcription factor that has a critical role in hematopoiesis. c-Myb transcript and protein have been overexpressed in a number of leukemias and cancers. Given c-Myb's role in hematopoiesis and leukemias, it is hypothesized that benzene interferes with the c-Myb signaling pathway and that this involves ROS. To investigate our hypothesis, we evaluated whether benzene, 1,4-benzoquinone, hydroquinone, phenol, and catechol generated ROS in chicken erythroblast HD3 cells, as measured by 5-(and-6)-chloromethyl-2',7'-dichlorodihydrofluorescein diacetate (DCFDA) and dihydrorhodamine-123 (DHR-123), and whether the addition of 100 U/ml of the antioxidating enzyme superoxide dismutase (SOD) could prevent ROS generation. Reduced to oxidized glutathione ratios (GSH:GSSG) were also assessed as well as hydroquinone and benzoquinone's effects on c-Myb protein levels and activation of a transiently transfected reporter construct. Finally we attempted to abrogate benzene metabolite mediated increases in c-Myb activity with the use of SOD. We found that benzoquinone, hydroquinone, and catechol increased DCFDA fluorescence, increased DHR-123 fluorescence, decreased GSH:GSSG ratios, and increased reporter construct expression after 24 h of exposure. SOD was able to prevent DCFDA fluorescence and c-Myb activity caused by benzoquinone and hydroquinone only. These results are consistent with other studies, which suggest metabolite differences in benzene-mediated toxicity. More importantly, this study supports the hypothesis that benzene may mediate its toxicity through ROS-mediated alterations in the c-Myb signaling pathway.

Wan, Joanne [Department of Pharmacology and Toxicology, Queen's University, Kingston, Ontario (Canada); Winn, Louise M. [Department of Pharmacology and Toxicology, Queen's University, Kingston, Ontario (Canada) and School of Environmental Studies, Queen's University, Kingston, Ontario (Canada)]. E-mail: winnl@queensu.ca

2007-07-15T23:59:59.000Z

433

Stepping up for democracy: using new communication media to revitalize citizen participation in climate change activism  

E-Print Network (OSTI)

Contemporary activists in the United States find it increasingly difficult to negotiate socio-political constraints to build a social movement. Those looking for relatively safe and effective venues for participation in and communication of dissent face oppression by the hegemonic power of the political right and, in the case of climate activism, anti-climate-science discourse. I use the case study of the climate action movement to explore how contemporary activists use new communication media technologies (hereafter new media) to establish and strengthen a movement. Even though climate change affects the daily lives of ordinary Americans, no U.S. policy exists to mitigate carbon emissions. New media offer the potential for new, safer venues for participation in and communication about social movements. I used empirical qualitative and critical methods to analyze the communication of climate change activism in Texas, USA. I examined how Step It Up! 2007 (SIU) used new media to facilitate or constrain public participation in climate action. I used critical discourse analysis to examine information provided to citizens on the SIU website, and I attended the SIU event in San Antonio, Texas. I found SIU organizers successfully used new media to increase agitation and to shift power away from the federal government to the local grassroots level. I recommend activists use new media as a unifying tool, to provide a fragmented and apathetic citizenry with a message that can be used to affect change. I conducted a critical rhetorical analysis of Working Film’s 2007 documentary on global warming, Everything’s Cool, as a means to suggest how, and in what ways, activists use new media to build a movement. I also hosted an activist screening. I examined how new media facilitate or constrain communication of movement messages. I found activists used the documentary and open source activism as a rhetorical exercise in agitation to refigure public understanding of climate science and attitudes toward U.S. climate change policy. Everything’s Cool positioned climate activism, and participating in the movement broadly, as accessible and acceptable, helping to rhetorically constitute a new kind of citizen activist, shifting power roles to a grassroots network of local leaders.

Minion, Jodi Michele

2008-08-01T23:59:59.000Z

434

The Role of Docosahexaenoic Acid in Regulation of Epidermal Growth Factor Receptor Activation and Function  

E-Print Network (OSTI)

The epidermal growth factor receptor (EGFR) is a transmembrane receptor tyrosine kinase integral in regulating cell growth, survival, and migration. EGFR signaling, which is dependent on localization of the receptor within lipid rafts, is often hijacked during colon tumorigenesis. Previous work has found that docosahexaenoic acid (DHA) is protective against colon cancer. This fatty acid is proposed to function in part by perturbing lipid rafts and thereby altering cell signaling. The overall objective of this work was to determine whether DHA alters EGFR function and signaling. We assessed EGFR localization and ligand-induced phosphorylation in YAMC cells treated with fatty acids. We found that DHA reduced the localization of EGFR to lipid rafts. Concomitant with altering receptor localization, DHA was found to increase EGFR phosphorylation. However, DHA paradoxically suppressed EGFR signal transduction. We found that DHA uniquely altered EGFR activity, and other long chain polyunsaturated fatty acid did not exert the same effect. We additionally observed similar effects on EGFR activation and signaling by feeding mice a diet enriched in fish oil (high in DHA), and this was attendant with reduced colon tumorigenesis. We next probed the mechanism by which DHA enhances EGFR phosphorylation. We found that DHA facilitates receptor dimerization to increase phosphorylation. We additionally identified Ras activation as the site of perturbation of signal transduction. DHA suppressed signal transduction by both changing the localization of EGFR within the plasma membrane and increasing receptor endocytosis and degradation. Lastly, we extended our observations into a wounding model. Although DHA uniquely altered ligand-stimulated EGFR activity, both DHA and EPA altered EGFR transactivation and signaling upon injury. This culminated in reduced wound healing in DHA and EPA treated cells. In an animal model, we found that diets enriched in either DHA or EPA altered EGFR signaling in the colonocytes of wounded animals. Overall, we found that DHA modifies EGFR signaling, which can be beneficial or detrimental for health depending on the disease state of an individual. These data help elucidate a mechanism by which DHA protects against colon cancer, as well as indicating a potential downside of n-3 PUFA therapy.

Turk, Harmony 1985-

2012-12-01T23:59:59.000Z

435

Spindles and active vortices in a model of confined filament-motor mixtures  

E-Print Network (OSTI)

Robust self-organization of subcellular structures is a key principle governing the dynamics and evolution of cellular life. In fission yeast cells undergoing division, the mitotic spindle spontaneously emerges from the interaction of microtubules, motor proteins and the confining cell walls, and asters and vortices have been observed to self-assemble in quasi-two dimensional microtubule-kinesin assays. Their is no clear microscopic picture of the role of the active motors driving this pattern formation, and the relevance of continuum modeling to filament-scale structures remains uncertain. Here we present results of numerical simulations of a discrete filament-motor protein model confined to a pressurised cylindrical box. Stable spindles, nematic configurations, asters and high-density semi-asters spontaneously emerge, the latter pair having also been observed in cytosol confined within emulsion droplets. State diagrams are presented delineating each stationary state as the pressure, motor speed and motor density are varied. We further highlight a parameter regime where vortices form exhibiting collective rotation of all filaments, but have a finite life-time before contracting to a semi-aster. Quantifying the distribution of life-times suggests this contraction is a Poisson process. Equivalent systems with fixed volume exhibit persistent vortices with stochastic switching in the direction of rotation, with switching times obeying similar statistics to contraction times in pressurised systems. Furthermore, we show that increasing the detachment rate of motors from filament plus-ends can both destroy vortices and turn some asters into vortices. Based on our findings we argue the need for a deeper understanding of the microscopic activities underpinning macroscopic self-organization in active gels and urge further experiments to help bridge these lengths.

David A. Head; W. J. Briels; Gerhard Gompper

2011-07-22T23:59:59.000Z

436

Vehicle Technologies Office: Active Solicitations  

NLE Websites -- All DOE Office Websites (Extended Search)

Active Solicitations to Active Solicitations to someone by E-mail Share Vehicle Technologies Office: Active Solicitations on Facebook Tweet about Vehicle Technologies Office: Active Solicitations on Twitter Bookmark Vehicle Technologies Office: Active Solicitations on Google Bookmark Vehicle Technologies Office: Active Solicitations on Delicious Rank Vehicle Technologies Office: Active Solicitations on Digg Find More places to share Vehicle Technologies Office: Active Solicitations on AddThis.com... Active Solicitations To explore current financial opportunity solicitations, click on the opportunity titles in the table below. To sort the list, click on the arrows in the column headings. Technology Solicitation Title Open Date Close Date Hydrogen and Fuel Cells Research and Development for Hydrogen Storage

437

In vivo Prompt Gamma Neutron Activation Analysis Facility for Total Body Nitrogen and Cd  

SciTech Connect

A Prompt Gamma Neutron Activation Analysis (PGNAA) system has been designed and constructed to measure the total body nitrogen and Cd for in vivo studies. An aqueous solution of KNO{sub 3} was used as phantom for system calibration. The facility has been used to monitor total body nitrogen (TBN) of mice and found that is related to their diet. Some mice swallowed diluted water with Cl{sub 2}Cd, and the presence of Cd was detected in the animals. The minimum Cd concentration that the system can detect was 20 ppm.

Munive, Marco; Revilla, Angel [Instituto Peruano de Energia Nuclear, Av. Canada 1470, Lima 41 (Peru); Solis, Jose L. [Instituto Peruano de Energia Nuclear, Av. Canada 1470, Lima 41 (Peru); Facultad de Ciencias, Universidad Nacional de Ingenieria, Av. Tupac Amaru 210, Lima (Peru)

2007-10-26T23:59:59.000Z

438

Passive and Active Fast-Neutron Imaging in Support of Advanced Fuel Cycle Initiative Safeguards Campaign  

Science Conference Proceedings (OSTI)

Results from safeguards-related passive and active coded-aperture fast-neutron imaging measurements of plutonium and highly enriched uranium (HEU) material configurations performed at Idaho National Laboratory s Zero Power Physics Reactor facility are presented. The imaging measurements indicate that it is feasible to use fast neutron imaging in a variety of safeguards-related tasks, such as monitoring storage, evaluating holdup deposits in situ, or identifying individual leached hulls still containing fuel. The present work also presents the first demonstration of imaging of differential die away fast neutrons.

Blackston, Matthew A [ORNL; Hausladen, Paul [ORNL

2010-04-01T23:59:59.000Z

439

Velocity-Dependent Friction and Diffusion for Grains in Neutral Gases, Dusty Plasmas and Active Systems  

E-Print Network (OSTI)

A self-consistent and universal description of friction and diffusion for Brownian particles (grains) in different systems, as a gas with Boltzmann collisions, dusty plasma with ion absorption by grains, and for active particles (e.g., cells in biological systems) is suggested on the basis of the appropriate Fokker-Planck equation. Restrictions for application of the Fokker-Planck equation to the problem of velocity-dependent friction and diffusion coefficients are found. General description for this coefficient is formulated on the basis of master equation. Relation of the diffusion coefficient in the coordinate and velocity spaces is found for active (capable to transfer momentum to the ambient media) and passive particles in the framework of the Fokker-Planck equation. The problem of anomalous space diffusion is formulated on the basis of the appropriate probability transition (PT) function. The method of partial differentiation is avoided to construct the correct probability distributions for arbitrary distances, what is important for applications to different stochastic problems. Generale equation for time-dependent PT function is formulated and discussed. Generalized friction in the velocity space is determined and applied to describe the friction force itself as well as the drag force in the case of a non-zero driven ion velocity in plasmas. The negative friction due to ion scattering on grains exists and can be realized for the appropriate experimental conditions.

S. A. Trigger; G. J. F. van Heijst; P. P. J. M. Schram

2004-01-19T23:59:59.000Z

440

Velocity-Dependent Friction and Diffusion for Grains in Neutral Gases, Dusty Plasmas and Active Systems  

E-Print Network (OSTI)

A self-consistent and universal description of friction and diffusion for Brownian particles (grains) in different systems, as a gas with Boltzmann collisions, dusty plasma with ion absorption by grains, and for active particles (e.g., cells in biological systems) is suggested on the basis of the appropriate Fokker-Planck equation. Restrictions for application of the Fokker-Planck equation to the problem of velocity-dependent friction and diffusion coefficients are found. General description for this coefficient is formulated on the basis of master equation. Relation of the diffusion coefficient in the coordinate and velocity spaces is found for active (capable to transfer momentum to the ambient media) and passive particles in the framework of the Fokker-Planck equation. The problem of anomalous space diffusion is formulated on the basis of the appropriate probability transition (PT) function. The method of partial differentiation is avoided to construct the correct probability distributions for arbitrary distances, what is important for applications to different stochastic problems. Generale equation for time-dependent PT function is formulated and discussed. Generalized friction in the velocity space is determined and applied to describe the friction force itself as well as the drag force in the case of a non-zero driven ion velocity in plasmas. The negative friction due to ion scattering on grains exists and can be realized for the appropriate experimental conditions.

S. A. Trigger; G. J. F. Van Heijst; P. P. J. M. Schram

2004-01-01T23:59:59.000Z

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441

CALCULATING ENERGY STORAGE DUE TO TOPOLOGICAL CHANGES IN EMERGING ACTIVE REGION NOAA AR 11112  

Science Conference Proceedings (OSTI)

The minimum current corona model provides a way to estimate stored coronal energy using the number of field lines connecting regions of positive and negative photospheric flux. This information is quantified by the net flux connecting pairs of opposing regions in a connectivity matrix. Changes in the coronal magnetic field, due to processes such as magnetic reconnection, manifest themselves as changes in the connectivity matrix. However, the connectivity matrix will also change when flux sources emerge or submerge through the photosphere, as often happens in active regions. We have developed an algorithm to estimate the changes in flux due to emergence and submergence of magnetic flux sources. These estimated changes must be accounted for in order to quantify storage and release of magnetic energy in the corona. To perform this calculation over extended periods of time, we must additionally have a consistently labeled connectivity matrix over the entire observational time span. We have therefore developed an automated tracking algorithm to generate a consistent connectivity matrix as the photospheric source regions evolve over time. We have applied this method to NOAA Active Region 11112, which underwent a GOES M2.9 class flare around 19:00 on 2010 October 16th, and calculated a lower bound on the free magnetic energy buildup of {approx}8.25 Multiplication-Sign 10{sup 30} erg over 3 days.

Tarr, Lucas; Longcope, Dana [Department of Physics, Montana State University, Bozeman, MT 59717 (United States)

2012-04-10T23:59:59.000Z

442

Tracking Dynamics of Plant Biomass Composting by Changes in Substrate Structure, Microbial Community, and Enzyme Activity  

DOE Green Energy (OSTI)

Understanding the dynamics of the microbial communities that, along with their secreted enzymes, are involved in the natural process of biomass composting may hold the key to breaking the major bottleneck in biomass-to-biofuels conversion technology, which is the still-costly deconstruction of polymeric biomass carbohydrates to fermentable sugars. However, the complexity of both the structure of plant biomass and its counterpart microbial degradation communities makes it difficult to investigate the composting process. In this study, a composter was set up with a mix of yellow poplar (Liriodendron tulipifera) wood-chips and mown lawn grass clippings (85:15 in dry-weight) and used as a model system. The microbial rDNA abundance data obtained from analyzing weekly-withdrawn composted samples suggested population-shifts from bacteria-dominated to fungus-dominated communities. Further analyses by an array of optical microscopic, transcriptional and enzyme-activity techniques yielded correlated results, suggesting that such population shifts occurred along with early removal of hemicellulose followed by attack on the consequently uncovered cellulose as the composting progressed. The observed shifts in dominance by representative microbial groups, along with the observed different patterns in the gene expression and enzymatic activities between cellulases, hemicellulases, and ligninases during the composting process, provide new perspectives for biomass-derived biotechnology such as consolidated bioprocessing (CBP) and solid-state fermentation for the production of cellulolytic enzymes and biofuels.

Wei, H.; Tucker, M. P.; Baker, J. O.; Harris, M.; Luo, Y. H.; Xu, Q.; Himmel, M. E.; Ding, S. Y.

2012-04-01T23:59:59.000Z

443

Alterations in canine plasma lipoproteins and lecithin: cholesterol acyltransferase activities during fish oil supplementation  

E-Print Network (OSTI)

In an effort to better understand lipid metabolism in an atherogenic resistant species, effects of n-3 fatty acid rich fish oil on canine lipoproteins and lecithin:cholesterol acyltransferase (LCAT) activities were investigated. Adult, mixed-breed dogs were fed a diet moderately restricted in protein/phosphorus, relatively higher in fat, and supplemented with either safflower (SFO) or menhaden fish oil (MHO) capsules (I.Og/300kcal/day for adult maintenance). Plasma was collected initially, after diet acclimation, and after 22 days supplementation. Significant elevations of total, free, and esterified cholesterol concentrations occurred during acclimation to the high fat diet. Plasma triacylglycerol concentrations remained within normal limits. Lipoprotein cholesterol concentrations rose during diet acclimation in the ci-I and a-2 fractions. The SFO group experienced significant increases in the cl-2 lipoprotein fractions during SFO supplementation, whereas the MHO group was unchanged. Increased plasma LCAT activities were seen with increased dietary fat; oil supplements did not modify this effect. Plasma phospholipid (PL) and cholesteryl ester (CE) subtractions reflected the dietary fatty acids. Significant enrichment of CE n-3 fatty acids occurred in the MHO group without significant alterations in any other acyl group. Specificity of LCAT for linoleic acid predominated in both groups. An in vitro study of the molecular species of LCAT derived CE revealed higher concentrations of docosahexaenoic acid (DHA) than those detected in plasma CE, while eicosapentaenoic acid (EPA) levels were similar. This finding suggests that the cellular component of canine cholesterol metabolism, absent from the in vitro study, may contribute to the differential metabolism of EPA and DHA. This information may be important in furthering the molecular basis for such differential effects in the pathogenesis of atherosclerosis and thrombotic phenomena. Furthermore, it is concluded that changes seen in plasma lipid/lipoprotein distributions were likely due to increased total dietary fat. Elevations of plasma cholesterol was characterized by increased ot, rather than P lipoprotein fractions. Additionally, while n-3 and n-6 polyunsaturated fatty acid (PUFA) supplements did not change canine LCAT activities at the dosage used, incorporation of both fatty acid families did occur in PL substrate and CE product.

McAlister, Kristina Gambrell

1994-01-01T23:59:59.000Z

444

Midwinter Suppression of Northern Hemisphere Storm Track Activity in the Real Atmosphere and in GCM Experiments  

Science Conference Proceedings (OSTI)

The seasonal cycle of the North Pacific and the North Atlantic storm track activity is investigated on the basis of daily National Meteorological Center (now known as NCEP) upper-air analyses (1946–89) and of data from the ECHAM3 T42 atmospheric ...

M. Christoph; U. Ulbrich; P. Speth

1997-06-01T23:59:59.000Z

445

Low dose IR stimulation of TGF-β1 in vivo and downstream activation of  

NLE Websites -- All DOE Office Websites (Extended Search)

IR stimulation of TGF-β1 in vivo and downstream activation of the IR stimulation of TGF-β1 in vivo and downstream activation of the IGF-1-sCLU pro-survival expression axis: A bystander and adaptive survival mechanism in vivo David Boothman University of Texas Southwestern Medical Center at Dallas Abstract Over the past few years our laboratory has elucidated the regulatory mechanisms governing the insulin-like growth factor-1 (IGF-1) - secretory clusterin (sCLU) expression axis, which can be induced by >2 cGy in vivo and in vitro with the same dose-response kinetics. IGF-1-sCLU expression can be induced by (A) TGF-β1 and (B) IR, but is suppressed by the p53 and Klotho tumor suppressors. Interestingly, there is a substantial difference between the regulatory mechanisms of IGF-1-sCLU induction after TGF-β1 and IR exposures, where p53 suppresses IR responses but does not suppress after

446

AN OVERVIEW OF BUILDING AMERICA INDUSTRIALIZED HOUSING PARTNERSHIP (BAIHP) ACTIVITIES IN HOT-HUMID CLIMATES  

E-Print Network (OSTI)

BAIHP (www.baihp.org ) conducts systems research and technical assistance activities for new housing. Hot-humid climate efforts described here include: Systems research : N