National Library of Energy BETA

Sample records for determination temporal characterization

  1. Pedestrian flow characterization based on spatio-temporal Voronoi tessellations

    E-Print Network [OSTI]

    Bierlaire, Michel

    Pedestrian flow characterization based on spatio- temporal Voronoi tessellations Marija Nikoli Conference Monte Verità / Ascona, April 15 ­ 17, 2015 #12;Pedestrian flow characterization based on spatio-temporal Voronoi tessellations Transport and Mobility Laboratory, EPFL Pedestrian flow characterization based

  2. Characterization of Temporal Property Classes \\Lambda Edward Chang y & Zohar Manna y & Amir Pnueli z

    E-Print Network [OSTI]

    Manna, Zohar

    Characterization of Temporal Property Classes \\Lambda Edward Chang y & Zohar Manna y & Amir Pnueli z September 8, 1995 Abstract. This paper presents two novel characterizations of the classes of characterizations concerns the safety­progress clas­ sification, which describes a hierarchy within the set

  3. Characterization of dynamic microgyroscopes by use of temporal digital image correlation

    SciTech Connect (OSTI)

    Yang Fujun; He Xiaoyuan; Quan Chenggen

    2006-10-20

    The advanced mechanical testing of microelectromechanical systems (MEMS) is necessary to provide feedback of measurements that can help the designer optimize MEMS structures and improve the reliability and stability of MEMS. We describe a digital image correlation (DIC) method for dynamic characterization of MEMS using an optical microscope with a high-speed complementary metal oxide semiconductor-based camera. The mechanical performance of a series of microgyroscopesis tested. The DIC method is employed to measure the microgyroscope in-plane displacement with subpixel accuracy. Use of the DIC method is less restrictive on the surface quality of the specimen and simplifies the measurement system. On the basis of a series of temporal digital images grabbed by a high-speed camera, the stability characteristic of the microgyroscopes is analyzed. In addition, the quality factors of the microgyroscopes are determined and agree well with other experimental methods.

  4. Characterization and Simulation of Transient Vibrations Using Band Limited Temporal Moments

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

    Smallwood, David O.

    1994-01-01

    A method is described to characterize shocks (transient time histories) in terms of the Fourier energy spectrum and the temporal moments of the shock passed through a contiguous set of band pass filters. The product model is then used to generate of a random process as simulations that in the mean will have the same energy and moments as the characterization of the transient event.

  5. Optical Deflection and Temporal Characterization of an Ultrafast Laser-Produced Electron Beam

    E-Print Network [OSTI]

    Umstadter, Donald

    Optical Deflection and Temporal Characterization of an Ultrafast Laser-Produced Electron Beam) The interaction of a laser-produced electron beam with an ultraintense laser pulse in free space is studied. We show that the optical pulse with a0 0:5 imparts momentum to the electron beam, causing it to deflect

  6. SPATIO-TEMPORAL CHARACTERIZATION OF AEROSOLS THROUGH ACTIVE USE OF DATA FROM MULTIPLE SENSORS

    E-Print Network [OSTI]

    Obradovic, Zoran

    climate change related studies. In recent years remote sensing instruments of various properties have been. Aerosol concentration and chemical properties are important parameters in climate change modelsSPATIO-TEMPORAL CHARACTERIZATION OF AEROSOLS THROUGH ACTIVE USE OF DATA FROM MULTIPLE SENSORS Z

  7. A filtering technique for the temporally reduced matrix of the Wilson fermion determinant

    E-Print Network [OSTI]

    Yasunori Futamura; Shoji Hashimoto; Akira Imakura; Keitaro Nagata; Tetsuya Sakurai

    2014-11-16

    The Wilson fermion determinant can be written in the form of a series expansion in fugacity $\\xi=\\exp(\\mu/T)$, provided that the eigenmodes of the temporally reduced operator are obtained. Since the calculation of all eigenmodes rapidly becomes prohibitive for larger volumes, we develop a method to calculate only the low-energy eigenmodes of the reduced matrix using a matrix filetering technique. This provides a basis for an approximation to neglect uninteresting ultraviolet contributions.

  8. Single-shot high-resolution characterization of optical pulses by temporal phase diversity

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

    Dorrer, C.; Waxer, L. J.; Kalb, A.; Hill, E. M.; Bromage, J.

    2015-01-01

    The concept of temporal phase diversity is proposed and applied to the temporal characterization of optical pulses. The experimental trace is composed of the measured power of a plurality of ancillary optical pulses derived from the pulse under test by adding known amounts of chromatic dispersion. The spectral phase of the pulse under test is retrieved by minimizing the error between the experimental trace and a trace calculated from the optical spectrum using the known diagnostic parameters. An assembly composed of splitters and dispersive delay fibers has been used to generate 64 ancillary pulses whose instantaneous power can be detectedmore »in a single shot with a high-bandwidth photodiode and oscilloscope. Pulse-shape reconstruction for pulses shorter than the photodetection impulse response has been demonstrated.The diagnostic is experimentally shown to accurately characterize pulses from a chirped-pulse–amplification system when its stretcher is detuned from the position for optimal recompression. Various investigations of the performance with respect to the number of ancillary pulses and the range of chromatic dispersion generated in the diagnostic are presented.« less

  9. Listed waste determination report. Environmental characterization

    SciTech Connect (OSTI)

    Not Available

    1993-06-01

    On September 23, 1988, the US Environmental Protection Agency (EPA) published a notice clarifying interim status requirements for the management of radioactive mixed waste thereby subjecting the Idaho National Engineering Laboratory (INEL) and other applicable Department of Energy (DOE) sites to regulation under the Resource Conservation and Recovery Act (RCRA). Therefore, the DOE was required to submit a Part A Permit application for each treatment, storage, and disposal (TSD) unit within the INEL, defining the waste codes and processes to be regulated under RCRA. The September 1990 revised Part A Permit application, that was approved by the State of Idaho identified 101 potential acute and toxic hazardous waste codes (F-, P-, and U- listed wastes according to 40 CFR 261.31 and 40 CFR 261.33) for some TSD units at the Idaho Chemical Processing Plant. Most of these waste were assumed to have been introduced into the High-level Liquid Waste TSD units via laboratory drains connected to the Process Equipment Waste (PEW) evaporator (PEW system). At that time, a detailed and systematic evaluation of hazardous chemical use and disposal practices had not been conducted to determine if F-, P-, or Unlisted waste had been disposed to the PEW system. The purpose of this investigation was to perform a systematic and detailed evaluation of the use and disposal of the 101 F-, P-, and Unlisted chemicals found in the approved September 1990 Part A Permit application. This investigation was aimed at determining which listed wastes, as defined in 40 CFR 261.31 (F-listed) and 261.33 (P & Unlisted) were discharged to the PEW system. Results of this investigation will be used to support revisions to the RCRA Part A Permit application.

  10. Temporally and spatially resolved characterization of microwave induced argon plasmas: Experiment and modeling

    SciTech Connect (OSTI)

    Baeva, M., E-mail: baeva@inp-greifswald.de; Andrasch, M.; Ehlbeck, J.; Loffhagen, D.; Weltmann, K.-D. [INP Greifswald, Felix-Hausdorff-Str. 2, 17489 Greifswald (Germany)

    2014-04-14

    Experiments and modeling of the plasma-microwave interaction have been performed in a coaxial microwave plasma source at a field frequency of 2.45 GHz generating argon plasmas at pressures of 20 and 40 millibars and a ratio of flow rate to pressure of 0.125 sccm/Pa. The incident microwave power between 100?W and 300?W is supplied in a regime of a pulse-width modulation with cycle duration of 110?ms and a power-on time of 23?ms. The experiments are based on heterodyne reflectometry and microwave interferometry at 45.75?GHz. They provide the temporal behaviour of the complex reflection coefficient, the microwave power in the plasma, as well as the electron density in the afterglow zone of the discharge. The self-consistent spatially two-dimensional and time-dependent modeling complements the analysis of the plasma-microwave interaction delivering the plasma and electromagnetic field parameters. The consolidating experimental observations and model predictions allow further characterizing the plasma source. The generated plasma has a core occupying the region close to the end of the inner electrode, where maximum electron densities above 10{sup 20}?m{sup ?3} and electron temperatures of about 1?eV are observed. Due to a longer outer electrode of the coaxial structure, the plasma region is extended and fills the volume comprised by the outer electrode. The electron density reaches values of the order of 10{sup 19}?m{sup ?3}. The heating of the gas occurs in its great part due to elastic collisions with the plasma electrons. However, the contribution of the convective heating is important especially in the extended plasma region, where the gas temperature reaches its maximum values up to approximately 1400?K. The temporally and spatially resolved modeling enables a thorough investigation of the plasma-microwave interaction which clearly shows that the power in-coupling occurs in the region of the highest electron density during the early stage of the discharge. In the steady state phase, however, the power in-coupling occurs close to the source walls where the electron density is significantly lower than on the discharge axis.

  11. Determination and Characterization of Ice Propagation Mechanisms on Surfaces Undergoing Dropwise Condensation 

    E-Print Network [OSTI]

    Dooley, Jeffrey B.

    2011-08-08

    The mechanisms responsible for ice propagation on surfaces undergoing dropwise condensation have been determined and characterized. Based on experimental data acquired non-invasively with high speed quantitative microscopy, ...

  12. GPR Surveys across a Prototype Surface Barrier to Determine Temporal and Spatial Variations in Soil Moisture Content

    SciTech Connect (OSTI)

    Clement, William P.; Ward, Anderson L.

    2008-06-10

    Engineered surface barriers are expected to play a critical role in the closure of waste sites within the DOE complex and currently require monitoring to verify performance. The most comprehensive approach to assess performance is by water balance evaluation, which requires knowledge of the soil water storage. However, water storage measurements are still made mostly by point sensors and as result field-scale estimates are subject to much uncertainty. The objective of this study was to assess the viability of using ground penetrating radar (GPR) to monitor changes in soil moisture distribution, and therefore water storage, at multiple scales. Profiles were collected at four times during the year March, May, September and the following January to track the decrease in storage from the spring to the summer followed by the increase in the winter. A series of 40-m long profiles were collected using 100-Mhz antennas with a sample interval of 0.8 ns and 500 samples per trace in a 400-ns window. A common midpoint (CMP) survey was first used to determine an optimal antenna separation (3.5 m) after which data were collected using a wide-offset reflection geometry. Travel times were used to calculate the electromagnetic velocities which were then used to calculate water content using the Topp’s equation. Changes in the GPR response were easily observed over the course of the study and indicated spatial differences in moisture, which owing to the relatively uniform soil, can be attributed to differences in water removal by evapotranspiration. Water content also showed a strong seasonal strong seasonal dependence that correlate well with seasonal changes in precipitation and plant water uptake. An investigation of the effects of soil water content on the amplitude of the ground wave showed weaker amplitudes in the drier spring and summer months than in the winter suggesting a correlation between amplitude and water content. Results show that GPR can provide accurate non-invasive estimates of spatial and temporal changes in water content and therefore soil water storage.

  13. Source Characterization and Temporal Variation of Methane Seepage from Thermokarst Lakes on the Alaska North Slope in Response to Arctic Climate Change

    SciTech Connect (OSTI)

    2012-09-30

    The goals of this research were to characterize the source, magnitude and temporal variability of methane seepage from thermokarst lakes (TKL) within the Alaska North Slope gas hydrate province, assess the vulnerability of these areas to ongoing and future arctic climate change and determine if gas hydrate dissociation resulting from permafrost melting is contributing to the current lake emissions. Analyses were focused on four main lake locations referred to in this report: Lake Qalluuraq (referred to as Lake Q) and Lake Teshekpuk (both on Alaska?s North Slope) and Lake Killarney and Goldstream Bill Lake (both in Alaska?s interior). From analyses of gases coming from lakes in Alaska, we showed that ecological seeps are common in Alaska and they account for a larger source of atmospheric methane today than geologic subcap seeps. Emissions from the geologic source could increase with potential implications for climate warming feedbacks. Our analyses of TKL sites showing gas ebullition were complemented with geophysical surveys, providing important insight about the distribution of shallow gas in the sediments and the lake bottom manifestation of seepage (e.g., pockmarks). In Lake Q, Chirp data were limited in their capacity to image deeper sediments and did not capture the thaw bulb. The failure to capture the thaw bulb at Lake Q may in part be related to the fact that the present day lake is a remnant of an older, larger, and now-partially drained lake. These suggestions are consistent with our analyses of a dated core of sediment from the lake that shows that a wetland has been present at the site of Lake Q since approximately 12,000 thousand years ago. Chemical analyses of the core indicate that the availability of methane at the site has changed during the past and is correlated with past environmental changes (i.e. temperature and hydrology) in the Arctic. Discovery of methane seeps in Lake Teshekpuk in the northernmost part of the lake during 2009 reconnaissance surveys provided a strong impetus to visit this area in 2010. The seismic methods applied in Lake Teshekpuk were able to image pockmarks, widespread shallow gas in the sediments, and the relationship among different sediment packages on the lake?s bottom, but even boomer seismics did not detect permafrost beneath the northern part of the lake. By characterizing the biogeochemistry of shallow TKL with methane seeps we showed that the radical seasonal shifts in ice cover and temperature. These seasonal environmental differences result in distinct consumption and production processes of biologically-relevant compounds. The combined effects of temperature, ice-volume and other lithological factors linked to seepage from the lake are manifest in the distribution of sedimentary methane in Lake Q during icecovered and ice-free conditions. The biogeochemistry results illustrated very active methanotrophy in TKLs. Substantial effort was subsequently made to characterize the nature of methanotrophic communities in TKLs. We applied stable isotope probing approaches to genetically characterize the methanotrophs most active in utilizing methane in TKLs. Our study is the first to identify methane oxidizing organisms active in arctic TKLs, and revealing that type I methanotrophs and type II methanotrophs are abundant and active in assimilating methane in TKLs. These organisms play an important role in limiting the flux of methane from these sites. Our investigations indicate that as temperatures increase in the Arctic, oxidation rates and active methanotrophic populations will also shift. Whether these changes can offset predicted increases in methanogenesis is an important question underlying models of future methane flux and resultant climate change. Overall our findings indicate that TKLs and their ability to act as both source and sink of methane are exceedingly sensitive to environmental change.

  14. Temporal characterization of a time-compensated monochromator for high-efficiency selection of extreme-ultraviolet pulses generated by high-order harmonics

    SciTech Connect (OSTI)

    Poletto, L.; Villoresi, P.; Benedetti, E.; Ferrari, F.; Stagira, S.; Sansone, G.; Nisoli, M.

    2008-07-15

    Ultrafast extreme-ultraviolet pulses are spectrally selected by a time-delay-compensated grating monochromator. The intrinsic very short duration of the pulses is obtained by exploiting the high-order harmonic generation process. The temporal characterization of the harmonic pulses is obtained using a cross-correlation method: pulses as short as 8 fs are measured at the output of the monochromator in the case of the 23rd harmonic. This value is in agreement with the expected duration of such pulses, indicating that the influence of the monochromator is negligible. The photon flux has been measured with a calibrated photodiode, pointing out the good efficiency of the monochromator, derived by the exploitation for the two gratings of the conical diffraction mounting.

  15. Temporal implicatures

    E-Print Network [OSTI]

    Thomas, Guillaume (Guillaume Pierre Yves)

    2012-01-01

    This dissertation proposes a theory of temporal implicatures, and applies it to the study of tense in Mbyá Guaraní. It is composed of two parts. In the first one, I discuss the analyses of temporal implicatures developed ...

  16. Characterization of a fluidized-bed combustion ash to determine potential for environmental impact. Final report

    SciTech Connect (OSTI)

    Hassett, D.J.; Henderson, A.K.; Pflughoeft-Hassett, D.F.; Mann, M.D.; Eylands, K.E.

    1997-10-01

    A 440-megawatt, circulating fluidized-bed combustion (CFBC), lignite-fired power plant is planned for construction in Choctaw County north of Ackerman, Mississippi. This power plant will utilize Mississippi lignite from the first lignite mine in that state. Malcolm Pirnie, Inc., is working with the power plant developer in the current planning and permitting efforts for this proposed construction project. In order to accommodate Mississippi state regulatory agencies and meet appropriate permit requirements, Malcolm Pirnie needed to provide an indication of the characteristics of the by-products anticipated to be produced at the proposed plant. Since the Mississippi lignite is from a newly tapped mine and the CFBC technology is relatively new, Malcolm Pirnie contacted with the Energy and Environmental Research Center (EERC) to develop and perform a test plan for the production and characterization of ash similar to ash that will be eventually produced at the proposed power plant. The work performed at the EERC included two primary phases: production of by-products in a bench-scale CFBC unit using lignite provided by Malcolm Pirnie with test conditions delineated by Malcolm Pirnie to represent expected operating conditions for the full-scale plant; and an extensive characterization of the by-products produced, focusing on Mississippi regulatory requirements for leachability, with the understanding that return of the by-product to the mine site was an anticipated by-product management plan. The overall focus of this project was the environmental assessment of the by-product expected to be produced at the proposed power plant. Emphasis was placed on the leachability of potentially problematic trace elements in the by-products. The leaching research documented in this report was performed to determine trends of leachability of trace elements under leaching conditions appropriate for evaluating land disposal in monofills, such as returning the by-products to the mine site.

  17. PRECISE CHARACTERIZATION OF GUATEMALAN OBSIDIAN SOURCES, AND SOURCE DETERMINATION OF ARTIFACTS FROM QUIRIGUA

    E-Print Network [OSTI]

    Stross, Fred H.

    2013-01-01

    precision sources in Guatemala. chemical characterization ofField Archaeology 5(1): Guatemala. Journal of Sheets, P.D.some obsidian flakes from Guatemala. American Antiquity 42:

  18. Seismic Determination of Reservoir Heterogeneity: Application to the Characterization of Heavy Oil Reservoirs

    SciTech Connect (OSTI)

    Imhof, Matthias G.; Castle, James W.

    2003-03-12

    The objective of the project was to examine how seismic and geologic data could be used to improve characterization of small-scale heterogeneity and their parameterization in reservoir models. The study was performed at West Coalinga Field in California.

  19. Seismic Determination of Reservoir Heterogeneity: Application to the Characterization of Heavy Oil Reservoirs

    SciTech Connect (OSTI)

    Imhof, Matthias G.; Castle, James W.

    2003-03-12

    The objective of the project was to examine how seismic and geologic data could be used to improve characterization of small-scale heterogeneity and their parameterization in reservoir models. Performed a theoretical and numerical study to examine which subsurface features the surface seismic method actually resolves.

  20. Temporal Multivariate Networks James Abello1

    E-Print Network [OSTI]

    Kobourov, Stephen G.

    Temporal Multivariate Networks James Abello1 , Daniel Archambault2 , Jessie Kennedy3 , Stephen. In a multivariate scenario, however, attributes play an important role and can also evolve over time. In this chapter, we characterize and survey methods for visualizing temporal multivariate networks. We also

  1. Precise characterization of Guatemalan obsidian sources, and source determination of artifacts from Quirigua

    SciTech Connect (OSTI)

    Stross, F.H.; Sheets, P.; Asaro, F.; Michel, H.V.

    1983-01-01

    For the determination of provenience of obsidian artifacts, precise and accurate measurements of composition patterns of the geologic sources are necessary for definitive and cost-effective assignments. Inter-comparison of data from different laboratories is often difficult. Suggestions for maximizing the usefulness of data already in the literature are made, contributions to a useful data bank of source composition patterns are recorded, and provenience determinations of 30 artifacts excavated in Quirigua, Guatemala are presented to exemplify the technique.

  2. Determination of Elastic Properties and Characterization of Thermal Barrier Coatings using Resonant Ultrasound Spectroscopy

    SciTech Connect (OSTI)

    Shyam, Amit; Lara-Curzio, Edgar

    2009-01-01

    Mechanical properties of plasma sprayed ceramic coatings are extremely important to engine design. However, the determination of these properties is often difficult because of the unique and complicated microstructure of the coatings. In this presentation the determination of the elastic constants of plasma sprayed Yttria stabilized Zirconia thermal barrier coatings using resonant ultrasound spectroscopy will be described along with an analysis that enables the determination of the elastic constants as a function of temperature and coating direction. In this work, results on the following issues will be discussed: 1) the elastic anisotropy of thermal barrier coatings, which is associated with coating failure modes; 2) sintering effects on coating compliance comparing with thermal behavior, which is important to coating performance on engineering structures, such as turbine engines; 3) coating elastic modulus at high temperatures close to the service condition, which provides insights of coating mechanical behavior in both fundamental and practical studies.

  3. Characterizing

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits &BradburyMay 1,CenterJohnCeremonySynchrotronCharacterization

  4. Method for determining formation quality factor from well log data and its application to seismic reservoir characterization

    DOE Patents [OSTI]

    Walls, Joel; Taner, M. Turhan; Dvorkin, Jack

    2006-08-08

    A method for seismic characterization of subsurface Earth formations includes determining at least one of compressional velocity and shear velocity, and determining reservoir parameters of subsurface Earth formations, at least including density, from data obtained from a wellbore penetrating the formations. A quality factor for the subsurface formations is calculated from the velocity, the density and the water saturation. A synthetic seismogram is calculated from the calculated quality factor and from the velocity and density. The synthetic seismogram is compared to a seismic survey made in the vicinity of the wellbore. At least one parameter is adjusted. The synthetic seismogram is recalculated using the adjusted parameter, and the adjusting, recalculating and comparing are repeated until a difference between the synthetic seismogram and the seismic survey falls below a selected threshold.

  5. SEISMIC DETERMINATION OF RESERVOIR HETEROGENEITY: APPLICATION TO THE CHARACTERIZATION OF HEAVY OIL RESERVOIRS

    SciTech Connect (OSTI)

    Matthias G. Imhof; James W. Castle

    2005-02-01

    The objective of the project was to examine how seismic and geologic data can be used to improve characterization of small-scale heterogeneity and their parameterization in reservoir models. The study focused on West Coalinga Field in California. The project initially attempted to build reservoir models based on different geologic and geophysical data independently using different tools, then to compare the results, and ultimately to integrate them all. Throughout the project, however, we learned that this strategy was impractical because the different data and model are complementary instead of competitive. For the complex Coalinga field, we found that a thorough understanding of the reservoir evolution through geologic times provides the necessary framework which ultimately allows integration of the different data and techniques.

  6. SEISMIC DETERMINATION OF RESERVOIR HETEROGENEITY: APPLICATION TO THE CHARACTERIZATION OF HEAVY OIL RESERVOIRS

    SciTech Connect (OSTI)

    Matthias G. Imhof; James W. Castle

    2005-02-01

    The objective of the project was to examine how seismic and geologic data can be used to improve characterization of small-scale heterogeneity and their parameterization in reservoir models. The study focused on West Coalinga Field in California. The project initially attempted to build reservoir models based on different geologic and geophysical data independently using different tools, then to compare the results, and ultimately to integrate them all. We learned, however, that this strategy was impractical. The different data and tools need to be integrated from the beginning because they are all interrelated. This report describes a new approach to geostatistical modeling and presents an integration of geology and geophysics to explain the formation of the complex Coalinga reservoir.

  7. Characterization of molecular determinants for nucleocytoplasmic shuttling of PRV UL54

    SciTech Connect (OSTI)

    Li Meili [State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071 (China); Wang Shuai [Key Laboratory of Agricultural and Environmental Microbiology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071 (China); Cai Mingsheng; Guo Hong [State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071 (China); Zheng Chunfu, E-mail: zheng.alan@hotmail.com [State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071 (China)

    2011-09-01

    The pseudorabies virus (PRV) early protein UL54 is a homologue of the herpes simplex virus 1 (HSV-1) immediate-early protein ICP27, which is a multifunctional protein and essential for HSV-1 infection. To determine if UL54 might shuttle between the nucleus and cytoplasm, as has been shown for its homologues in human herpesviruses, the molecular determinants for its nucleocytoplasmic shuttling were investigated. Heterokaryon assays demonstrated that UL54 was a nucleocytoplasmic shuttling protein and this property could not be blocked by leptomycin B, an inhibitor of chromosome region maintenance 1 (CRM1). However, TAP/NXF1 promoted the nuclear export of UL54 and interacted with UL54, suggesting that UL54 shuttles between the nucleus and the cytoplasm via a TAP/NXF1, but not CRM1, dependent nuclear export pathway. Furthermore, UL54 was demonstrated to target to the nucleus through a classic Ran-, importin {beta}1- and {alpha}5-dependent nuclear import mechanism.

  8. Doing time : inducing temporal graphs

    E-Print Network [OSTI]

    Bramsen, Philip James

    2006-01-01

    We consider the problem of constructing a directed acyclic graph that encodes temporal relations found in a text. The unit of our analysis is a temporal segment, a fragment of text that maintains temporal coherence. The ...

  9. Temporal Aggregates and Temporal Universal Quantification in Standard SQL

    E-Print Network [OSTI]

    Libre de Bruxelles, Université

    Temporal Aggregates and Temporal Universal Quantification in Standard SQL Esteban Zim´anyi Dept that querying and updating time-varying information using stan- dard (i.e., non-temporal) SQL is a challenging task, the pro- posed temporal extensions of SQL have not reach accep- tance in the standardization

  10. Chemical Characterization and Water Content Determination of Bio-Oils Obtained from Various Biomass Species using 31P NMR Spectroscopy

    SciTech Connect (OSTI)

    David, K.; Ben, H.; Muzzy, J.; Feik, C.; Iisa, K.; Ragauskas, A.

    2012-03-01

    Pyrolysis is a promising approach to utilize biomass for biofuels. One of the key challenges for this conversion is how to analyze complicated components in the pyrolysis oils. Water contents of pyrolysis oils are normally analyzed by Karl Fischer titration. The use of 2-chloro-4,4,5,5,-tetramethyl-1,3,2-dioxaphospholane followed by {sup 31}P NMR analysis has been used to quantitatively analyze the structure of hydroxyl groups in lignin and whole biomass. Results: {sup 31}P NMR analysis of pyrolysis oils is a novel technique to simultaneously characterize components and analyze water contents in pyrolysis oils produced from various biomasses. The water contents of various pyrolysis oils range from 16 to 40 wt%. The pyrolysis oils obtained from Loblolly pine had higher guaiacyl content, while that from oak had a higher syringyl content. Conclusion: The comparison with Karl Fischer titration shows that {sup 31}P NMR could also reliably be used to measure the water content of pyrolysis oils. Simultaneously with analysis of water content, quantitative characterization of hydroxyl groups, including aliphatic, C-5 substituted/syringyl, guaiacyl, p-hydroxyl phenyl and carboxylic hydroxyl groups, could also be provided by {sup 31}P NMR analysis.

  11. Temporal Search Web Archives

    E-Print Network [OSTI]

    Waldmann, Uwe

    Temporal Search in Web Archives Dissertation zur Erlangung des Grades Doktor der 10.02.2010 (Klaus Lorenz Berberich) #12;vi #12;Abstract Web archives include both archives of contents originally published on the Web (e.g., the Internet Archive) but also archives of contents

  12. Temporal Representation in Semantic Graphs

    SciTech Connect (OSTI)

    Levandoski, J J; Abdulla, G M

    2007-08-07

    A wide range of knowledge discovery and analysis applications, ranging from business to biological, make use of semantic graphs when modeling relationships and concepts. Most of the semantic graphs used in these applications are assumed to be static pieces of information, meaning temporal evolution of concepts and relationships are not taken into account. Guided by the need for more advanced semantic graph queries involving temporal concepts, this paper surveys the existing work involving temporal representations in semantic graphs.

  13. Models in Temporal Knowledge Representation and Temporal DBMS (90-8)

    E-Print Network [OSTI]

    Barrera, Renato; Al-Taha, Khaled K; NCGIA Maine Orono

    1990-01-01

    V. and P. D. e. al. "Designing DBMS Support for the TemporalRepresentation and Temporal DBMS. department of Surveyingof temporal reasoning and DBMS's in the literature. , ASDS

  14. Spatial and temporal coherence properties of single free-electron laser pulses

    E-Print Network [OSTI]

    Singer, A; Mancuso, A P; Gerasimova, N; Yefanov, O M; Gulden, J; Gorniak, T; Senkbeil, T; Sakdinawat, A; Liu, Y; Attwood, D; Dziarzhytski, S; Mai, D D; Treusch, R; Weckert, E; Salditt, T; Rosenhahn, A; Wurth, W; Vartanyants, I A

    2015-01-01

    The experimental characterization of the spatial and temporal coherence properties of the free-electron laser in Hamburg (FLASH) at a wavelength of 8.0 nm is presented. Double pinhole diffraction patterns of single femtosecond pulses focused to a size of about 10 microns by 10 microns were measured. A transverse coherence length of 6.2 microns in the horizontal and 8.7 microns in the vertical direction was determined from the most coherent pulses. Using a split and delay unit the coherence time of the pulses produced in the same operation conditions of FLASH was measured to be 1.75 fs. From our experiment we estimated the degeneracy parameter of the FLASH beam to be on the order of $10^{10}$ to $10^{11}$, which exceeds the values of this parameter at any other source in the same energy range by many orders of magnitude.

  15. A Case Study of Temporal Data By Richard T. Snodgrass,

    E-Print Network [OSTI]

    Snodgrass, Richard T.

    determine when the erroneous data were stored (a transaction time), rollback the table to that point of the table, with all the data directly at hand. The alternatives ­ going back through paper recordsA Case Study of Temporal Data By Richard T. Snodgrass, Professor of Computer Science, University

  16. Stress magnitude and its temporal variation at Mt. Asama Volcano, Japan, from seismic anisotropy and GPS

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Stress magnitude and its temporal variation at Mt. Asama Volcano, Japan, from seismic anisotropy stress Japan The Earth's stress regime is fundamental to its physical processes, yet few methods can determine absolute stress, and measurements of temporal variations in stress are controversial. The Global

  17. Detection power, temporal response, and spatial resolution of IRON fMRI in awake, behaving monkeys at 3 Tesla

    E-Print Network [OSTI]

    Leite, Francisca Maria Pais Horta

    2007-01-01

    The main goal of this thesis was to systematically characterize the detection sensitivity, temporal response, and spatial resolution of IRON contrast for fMRI within the awake, behaving monkey. Understanding these issues ...

  18. Technical Basis for the Determination that Current Characterization Data and Processes are Sufficient to Ensure Safe Storage and to Design Waste Disposal

    SciTech Connect (OSTI)

    SIMPSON, B.C.

    1999-08-12

    This document presents the technical basis for closure of Defense Nuclear Facilities Safety Board (DNFSB) Recommendation 93-5 Implementation Plan milestone 5.6.3.13, ''Core sample all tanks by 2002'' (DOE-RL 1996). The milestone was based on the need for characterization data to ensure safe storage of the waste, to operate the tanks safely, and to plan and implement retrieval and processing of the waste. Sufficient tank characterization data have been obtained to ensure that existing controls are adequate for safe storage of the waste in the 177 waste tanks at the Hanford Site. In addition, a process has been developed, executed, and institutionalized to systemically identify information needs, to integrate and prioritize the needs, and to reliably obtain and analyze the associated samples. This document provides a technical case that the remaining 45 incompletely sampled tanks no longer require sampling to support the intent of the Implementation Plan milestone. Sufficient data have been obtained to close the Unreviewed Safety Questions (USQs), and to ensure that existing hazard controls are adequate and appropriately applied. However, in the future, additional characterization of tanks at the site will be required to support identified information needs. Closure of this milestone allows sampling and analytical data to be obtained in a manner that is consistent with the integrated priority process.

  19. Oil & Natural Gas Technology Temporal Characterization of Hydrates...

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

    controlled by both deep and near- surface structure. Results have been integrated with seismic data from the area and show correspondence in space of hydrate and structures,...

  20. Methods of Photoelectrode Characterization with High Spatial and Temporal

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(JournalspectroscopyReport) |(Patent) | SciTechSciTech Connect J. C. ; Moon,

  1. Temporal and spatial variation of particulate matter and chlorophyll in the Arabian Sea 

    E-Print Network [OSTI]

    Gundersen, Jan Scott

    1997-01-01

    of the 1995 U.S. Joint Global Ocean Flux Study. Temporal and spatial variations of particulate matter (PM) and chlorophyll were determined via transrnissometers and fluorometers during a monsoonal cycle. Seasonal variations of the standing stock of PM...

  2. Waste Characterization, Reduction, and Repackaging Facility ...

    Office of Environmental Management (EM)

    Operations Waste Characterization, Reduction, and Repackaging Facility (WCRRF) Waste Characterization Glovebox Operations This document was used to determine facts and conditions...

  3. Active Temporal Multiplexing of Photons

    E-Print Network [OSTI]

    Gabriel J. Mendoza; Raffaele Santagati; Jack Munns; Elizabeth Hemsley; Mateusz Piekarek; Enrique Martin-Lopez; Graham D. Marshall; Damien Bonneau; Mark G. Thompson; Jeremy L. O'Brien

    2015-08-12

    Photonic qubits constitute a leading platform to disruptive quantum technologies due to their unique low-noise properties. The cost of the photonic approach is the non-deterministic nature of many of the processes, including single-photon generation, which arises from parametric sources and negligible interaction between photons. Active temporal multiplexing - repeating a generation process in time and rerouting to single modes using an optical switching network - is a promising approach to overcome this challenge and will likely be essential for large-scale applications with greatly reduced resource complexity and system sizes. Requirements include the precise synchronization of a system of low-loss switches, delay lines, fast photon detectors, and feed-forward. Here we demonstrate temporal multiplexing of 8 'bins' from a double-passed heralded photon source and observe an increase in the heralding and heralded photon rates. This system points the way to harnessing temporal multiplexing in quantum technologies, from single-photon sources to large-scale computation.

  4. Active Temporal Multiplexing of Photons

    E-Print Network [OSTI]

    Gabriel J. Mendoza; Raffaele Santagati; Jack Munns; Elizabeth Hemsley; Mateusz Piekarek; Enrique Martin-Lopez; Graham D. Marshall; Damien Bonneau; Mark G. Thompson; Jeremy L. O'Brien

    2015-03-04

    Quantum information science promises powerful new technologies and fundamental scientific discoveries. Photonic qubits are appealing for their low noise properties-the cost is the non-deterministic nature of many processes, including photon generation and entanglement. Active multiplexing can increase the success probability of such processes above a required threshold, and spatial multiplexing of up to four heralded photon sources shows great promise. The cost is a proliferation of hardware. Temporal multiplexing-repeated use of the same hardware components-has been proposed as an alternative and is likely to be essential to greatly reduce resource complexity and system sizes. Requirements include the precise synchronization of a system of low-loss switches, delay lines, fast photon detectors, and feed-forward. Here we demonstrate multiplexing of 8 'bins'-four temporal and two spatial-from a heralded photon source. We show enhanced photon emission statistics, observing an increase in both the triggering and heralded photon rates. Despite its current limitations due to extrinsic sources of loss, this system points the way to harnessing temporal multiplexing in quantum technologies, from single-photon sources to large-scale computation.

  5. Characterization and significance of a stylolitic fracture system determined from horizontal core and borehole imaging data, Hanifa Reservoir, Abqaiq Field (SA)

    SciTech Connect (OSTI)

    Luthy, S.T.; Grover, G. [Saudi Aramco, Dhahran (Saudi Arabia); Wiltse, E. [Schlumberger, Al-Khobar (Saudi Arabia)

    1995-08-01

    The Hanifa reservoir at Abqaiq Field, eastern Saudi Arabia, consists of microporous (up to 30% porosity) lime mudstones with low matrix permeability (< 10 md). SEM imagery reveals a crystal framework texture of micro-rhombic calcite crystals with 2-5 {mu}m-sized intercrystalline pore spaces. Fluid transmissibility was preliminarily identified as via fractures as indicated by no stratigraphic predictability to fluid flow, high flow over thin stratigraphic intervals, little relationship between high flow and high porosity intervals, large disparity between core Kh and well-test Kh, and observation offractures in cores and borehole imaging logs front horizontal Hanifa wells. Integration of descriptions from over 4000 fractures observed in borehole images together with descriptions of over 500 fractures identified from vertica1 and horizontal cores has resulted in further characterization of the fracture system. The fractures are open to partially-open, with an east-to northeast orientation, and they cluster in low porosity zones which are characterized by intense stylolitization. These sub-parallel, nearly vertical, discontinuous fractures terminate at stylolites, or pinchout locally into tight carbonate matrix, and contain appreciable amounts of dead oil and calcite cement. In zones of particularly intense stylolitization, fracturing may be locally pervasive, giving the rock a brecciated appearance. Together, the stylolites and stylolite-related fractures form the primary permeability system ofthe Hanifa reservoir. This fracture system architecture is critical to understanding the production characteristics of the reservoir, which include anomalously high fluid flow in low porosity zones or transition zones between high and low porosity, radial flow behavior from well tests, smaller than expected differences in well productivity between vertical and horizontal wells, and limited injection water breakthrough.

  6. Multi-Photon Interference and Temporal Distinguishability of Photons

    E-Print Network [OSTI]

    Z. Y. Ou

    2007-08-24

    A number of recent interference experiments involving multiple photons are reviewed. These experiments include generalized photon bunching effects, generalized Hong-Ou-Mandel interference effects and multi-photon interferometry for demonstrations of multi-photon de Broglie wavelength. The multi-photon states used in these experiments are from two pairs of photons in parametric down-conversion. We find that the size of the interference effect in these experiments, characterized by the visibility of interference pattern, is governed by the degree of distinguishability among different pairs of photons. Based on this discovery, we generalize the concept of multi-photon temporal distinguishability and relate it to a number of multi-photon interference effects. Finally, we make an attempt to interpret the coherence theory by the multi-photon interference via the concept of temporal distinguishability of photons.

  7. GLOVEBOX GLOVE CHARACTERIZATION SUMMARY

    SciTech Connect (OSTI)

    Korinko, P.

    2012-05-14

    A task was undertaken to determine primarily the permeation behavior of various glove compounds from four manufacturers. As part of the basic characterization task, the opportunity to obtain additional mechanical and thermal properties presented itself. Consequently, a total of fifteen gloves were characterized for permeation, Thermogravimetric Analysis, Puncture Resistance, Tensile Properties and Dynamic Mechanical Analysis. Detailed reports were written for each characterization technique used. This report contains the summary of the results.

  8. Tank waste characterization basis

    SciTech Connect (OSTI)

    Brown, T.M.

    1996-08-09

    This document describes the issues requiring characterization information, the process of determining high priority tanks to obtain information, and the outcome of the prioritization process. In addition, this document provides the reasoning for establishing and revising priorities and plans.

  9. CX-010792: Categorical Exclusion Determination | Department of...

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

    CX-010792: Categorical Exclusion Determination CX-010792: Categorical Exclusion Determination Gulf of Mexico Miocene Carbon Dioxide (CO2) Site Characterization Mega Transect - Task...

  10. Characterization of radiation beams used to determinate the correction factor for a CyberKnife® unit reference field using ionization chambers

    SciTech Connect (OSTI)

    Aragón-Martínez, Nestor Massillon-JL, Guerda; Gómez-Muñoz, Arnulfo

    2014-11-07

    This paper aimed to characterize a 6 MV x-ray beam from a Varian® iX linear accelerator in order to obtain the correction factors needed by the IAEA/AAPM new formalism{sup 1}. The experiments were performed in a liquid water phantom under different irradiation conditions: a) Calibration of the reference field of 10 cm × 10 cm at 90 cm SSD and 10 cm depth was carried out according to the TRS-398 protocol using three ionization chambers (IC) calibrated in different reference laboratory and b) Measurement of the absorbed dose rate at 70 cm SSD and 10 cm depth in a 10 cm × 10 cm and 5.4 cm × 5.4 cm fields was obtained in order to simulate the CyberKnife® conditions where maximum distance between the source and the detector is equal to 80 cm and the maximum field size is 6 cm diameter. Depending where the IC was calibrated, differences between 0.16% and 2.24% in the absorbed dose rate measured in the 10 cm × 10 cm field at 90 cm SSD were observed, while for the measurements at 70 cm SSD, differences between 1.27% and 3.88% were obtained. For the 5.4 cm × 5.4 cm field, the absorbed dose measured with the three ICs varies between 1.37% and 3.52%. The increase in the difference on the absorbed dose when decreasing the SSD could possibly be associated to scattering radiation generated from the collimators and/or the energy dependence of the ionization chambers to low-energy radiation. The results presented in this work suggest the importance of simulating the CyberKnife® conditions using other linear accelerator for obtaining the correction factors as proposed by the IAEA/AAPM new formalism in order to measure the absorbed dose with acceptable accuracy.

  11. An interesting temporalization of Gödel's ontological proof

    E-Print Network [OSTI]

    Gavriel Segre

    2009-04-24

    Recent theologies concerning God's death after Auschwitz are mathematically formalized through a suitable temporalization of G\\"{o}del's Ontological Proof.

  12. Harmonic generation with temporally focused ultrashort pulses

    E-Print Network [OSTI]

    Silberberg, Yaron

    Harmonic generation with temporally focused ultrashort pulses Dan Oron and Yaron Silberberg of harmonic generation with temporally focused ultrashort pulses are explored both theoreti- cally and experimentally. Analyzing the phase-matching conditions for harmonic generation we find a corre- spondence

  13. Handling Change Management using Temporal Active Repositories

    E-Print Network [OSTI]

    Gal, Avigdor

    Handling Change Management using Temporal Active Repositories Avigdor Gal and Opher Etzion and their management. In this paper we introduce an architecture of change man- agement using active temporal repositories. Flexible change management allows the support of information about past or future versions

  14. Hybrid Ockhamist Temporal Logic Patrick Blackburn

    E-Print Network [OSTI]

    Goranko, Valentin

    Hybrid Ockhamist Temporal Logic Patrick Blackburn INRIA, Lorraine Campus Scientifique, BP 239 Nancy Johannesburg, South Africa vfg@na.rau.ac.za Abstract We introduce hybrid Ockhamist temporal logic, which combines the mechanisms of hybrid logic with Ockhamist semantics by employing nominals, satisfaction

  15. MINING TEMPORAL SEQUENCES TO DISCOVER INTERESTING PATTERNS

    E-Print Network [OSTI]

    Holder, Lawrence B.

    MINING TEMPORAL SEQUENCES TO DISCOVER INTERESTING PATTERNS Edwin O. Heierman, III, G. Michael, Texas 76019-0015 {heierman, youngbld, cook@cse.uta.edu ABSTRACT When mining temporal sequences sequences. In this paper, we present a novel data mining technique based on the Minimum Description Length

  16. Revealing latent factors of temporal networks for mesoscale intervention in epidemic spread

    E-Print Network [OSTI]

    Gauvin, Laetitia; Barrat, Alain; Cattuto, Ciro

    2015-01-01

    The customary perspective to reason about epidemic mitigation in temporal networks hinges on the identification of nodes with specific features or network roles. The ensuing individual-based control strategies, however, are difficult to carry out in practice and ignore important correlations between topological and temporal patterns. Here we adopt a mesoscopic perspective and present a principled framework to identify collective features at multiple scales and rank their importance for epidemic spread. We use tensor decomposition techniques to build an additive representation of a temporal network in terms of mesostructures, such as cohesive clusters and temporally-localized mixing patterns. This representation allows to determine the impact of individual mesostructures on epidemic spread and to assess the effect of targeted interventions that remove chosen structures. We illustrate this approach using high-resolution social network data on face-to-face interactions in a school and show that our method afford...

  17. The temporal efficiency of SO? emissions trading

    E-Print Network [OSTI]

    Ellerman, A. Denny

    2002-01-01

    This paper provides an empirical evaluation of the temporal efficiency of the U.S. Acid Rain Program, which implemented a nationwide market for trading and banking sulfur dioxide (SO2) emission allowances. We first develop ...

  18. TEMPORAL PATTERNS AND MODAL Johan van Benthem

    E-Print Network [OSTI]

    Amsterdam, University of

    temporal systems' is mixing the analysis of 'logical time' with standard physical engineering techniques process theories (dynamic logic, µ­calculus, process algebra), surveyed in Colin Stirling's contribution to this issue. (Cf. also Stirling 1

  19. A study of temporal visual composition

    E-Print Network [OSTI]

    Sun, Xiaohua, 1972-

    2007-01-01

    With the rapid growth of digital art, the temporal dimension is becoming a more and more important aspect of visual creations. This thesis is an effort to contribute to the construction of a disciplined basis for the ...

  20. An object-oriented approach to site characterization decision support

    SciTech Connect (OSTI)

    Johnson, R.

    1995-06-01

    Effective decision support for site characterization is key to determining the nature and extent of contamination and the associated human and environmental risks. Site characterization data, however, present particular problems to technical analysts and decision-makers. Such data are four dimensional, incorporating temporal and spatial components. Their sheer volume can be daunting -- sites with hundreds of monitoring wells and thousands of samples sent for laboratory analyses are not uncommon. Data are derived from a variety of sources including laboratory analyses, non-intrusive geophysical surveys, historical information, bore logs, in-field estimates of key physical parameters such as aquifer transmissivity, soil moisture content, depth-to-water table, etc. Ultimately, decisions have to be made based on data that are always incomplete, often confusing, inaccurate, or inappropriate, and occasionally wrong. In response to this challenge, two approaches to environmental decision support have arisen, Data Quality Objectives (DQOS) and the Observational Approach (OA). DQOs establish criteria for data collection by clearly defining the decisions that need to be made, the uncertainty that can be tolerated, and the type and amount of data that needs to be collected to satisfy the uncertainty requirements. In practice, DQOs are typically based on statistical measures. The OA accepts the fact that the process of characterizing and remediating contaminated sites is always uncertain. Decision-making with the OA is based on what is known about a site, with contingencies developed for potential future deviations from the original assumptions about contamination nature, extent, and risks posed.

  1. Collector/Receiver Characterization (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-08-01

    Fact sheet describing NREL CSP Program capabilities for collector/receiver characterization: determining optical efficiency, measuring heat loss, developing and testing concentrators, concentrating the sun's power, and optically characterizing CSP plants.

  2. A Temporal Planning System for Time-Optimal Planning

    E-Print Network [OSTI]

    Garrido, Antonio

    the utility of our system for dealing with temporal planning problems. Key words: planning, temporal planningA Temporal Planning System for Time-Optimal Planning Antonio Garrido, Eva Onaindía and Federico with temporality on actions presents an important challenge to AI planning. Unlike Graphplan-based planners which

  3. Efficient Temporal Coalescing Query Support in Relational Database Systems

    E-Print Network [OSTI]

    Zaniolo, Carlo

    demand for temporal databases have only in- creased with time; unfortunately, DBMS vendors and standard by the lessons learned from the very history of temporal databases, where past proposals failed to gain much temporal query models with current DBMS engines [5]. Even if temporal database and query model can be well

  4. Performance Characterization

    Broader source: Energy.gov [DOE]

    Performance characterization efforts within the SunShot Systems Integration activities focus on collaborations with U.S. solar companies to:

  5. CX-010791: Categorical Exclusion Determination | Department of...

    Energy Savers [EERE]

    Exclusion Determination Gulf of Mexico Miocene Carbon Dioxide (CO2) Site Characterization Mega Transect CX(s) Applied: A9, A11 Date: 08142013 Location(s): Texas...

  6. Reservoir characterization using wavelet transforms 

    E-Print Network [OSTI]

    Rivera Vega, Nestor

    2004-09-30

    Automated detection of geological boundaries and determination of cyclic events controlling deposition can facilitate stratigraphic analysis and reservoir characterization. This study applies the wavelet transformation, a recent advance in signal...

  7. Central Characterization Program (CCP) Transuranic Waste Certification...

    Office of Environmental Management (EM)

    Certification Plan Central Characterization Program (CCP) Transuranic Waste Certification Plan This document was used to determine facts and conditions during the Department of...

  8. Central Characterization Program (CCP) TRU Nonconforming Item...

    Office of Environmental Management (EM)

    TRU Nonconforming Item Reporting and Control Central Characterization Program (CCP) TRU Nonconforming Item Reporting and Control This document was used to determine facts and...

  9. Central Characterization Program (CCP) Transuranic Authorized...

    Office of Environmental Management (EM)

    Authorized Methods for Payload Control Central Characterization Program (CCP) Transuranic Authorized Methods for Payload Control This document was used to determine facts and...

  10. Automated Storage Reclamation Using Temporal Importance Annotations

    E-Print Network [OSTI]

    Gehani, Ashish

    Automated Storage Reclamation Using Temporal Importance Annotations Surendar Chandra, Ashish.edu Abstract This work focuses on scenarios that require the storage of large amounts of data. Such sys- tems require the ability to either continuously increase the storage space or reclaim space by deleting

  11. Enhancing Smart Home Algorithms Using Temporal Relations

    E-Print Network [OSTI]

    Cook, Diane J.

    Enhancing Smart Home Algorithms Using Temporal Relations Vikramaditya R. JAKKULA1 and Diane J COOK School of Electrical Engineering and Computer Science Abstract. Smart homes offer a potential benefit improves the performance of these algorithms and thus enhances the ability of smart homes to monitor

  12. Nordic Journal of Computing TEMPORAL CONCURRENT CONSTRAINT

    E-Print Network [OSTI]

    Palamidessi, Catuscia

    on this semantics, we develop a proof system for linear­temporal properties of these processes. The expressiveness of ntcc is illustrated by modeling cells, timed systems such as RCX controllers, multi­agent systems, Calculi for Concur­ rency, Program Specification, Timed Systems, Reactive Systems, Multi­Agent Sys­ tems

  13. Rechargeable Sensor Activation under Temporally Correlated Events

    E-Print Network [OSTI]

    Kar, Koushik

    -surveilled regions. For long term monitoring of such environments, sensors can be deployed with rechargeable their occurrences. Typically, sensors are heavily constrained in terms of energy, and thus energy usage optimally only if events are uncorrelated. Index Terms Rechargeable Sensors, Temporal Correlations, Node

  14. Mining Sequential Patterns from Temporal Streaming Data

    E-Print Network [OSTI]

    Malerba, Donato

    Mining Sequential Patterns from Temporal Streaming Data A. Marascu and F. Masseglia INRIA Sophia.Marascu,Florent.Masseglia}@sophia.inria.fr Abstract. In recent years, emerging applications introduced new con- straints for data mining methods of our knowledge, no method has been proposed for mining sequential patterns in data streams. We argue

  15. SEISMIC INTERFEROMETRY FOR TEMPORAL MONITORING Norimitsu Nakata

    E-Print Network [OSTI]

    Snieder, Roel

    SEISMIC INTERFEROMETRY FOR TEMPORAL MONITORING by Norimitsu Nakata #12;c Copyright by Norimitsu Seismic interferometry, where one computes coherency of waves between two or more receivers and averages from the first study related to seismic interferometry (although the name of seismic interferometry has

  16. What is the temporal analog of reflection and refraction of optical beams?

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

    Plansinis, B. W.; Donaldson, W. R.; Agrawal, G. P.

    2015-10-28

    It is shown numerically and analytically that when an optical pulse approaches a moving temporal boundary across which the refractive index changes, it undergoes a temporal equivalent of reflection and refraction of optical beams at a spatial boundary. The main difference is that the role of angles is played by changes in the frequency. The frequency dependence of the dispersion of the material in which the pulse is propagating plays a fundamental role in determining the frequency shifts experienced by the reflected and refracted pulses. As a result, our analytic expressions for these frequency shifts allow us to find themore »condition under which an analog of total internal reflection may occur at the temporal boundary.« less

  17. Evolution of transcription networks in response to temporal fluctuations

    E-Print Network [OSTI]

    Hespanha, João Pedro

    Evolution of transcription networks in response to temporal fluctuations Journal: Evolution, Evolution & Marine Biology Keywords: Population Genetics, Epistasis, Genetic Networks, Transcription Evolution: For Review Only #12;EVOLUTION OF TRANSCRIPTION NETWORKS IN RESPONSE TO TEMPORAL FLUCTUATIONS

  18. Modeling Temporal Behavior in Large Networks: A Dynamic Mixed-Membership Model

    SciTech Connect (OSTI)

    Rossi, R; Gallagher, B; Neville, J; Henderson, K

    2011-11-11

    Given a large time-evolving network, how can we model and characterize the temporal behaviors of individual nodes (and network states)? How can we model the behavioral transition patterns of nodes? We propose a temporal behavior model that captures the 'roles' of nodes in the graph and how they evolve over time. The proposed dynamic behavioral mixed-membership model (DBMM) is scalable, fully automatic (no user-defined parameters), non-parametric/data-driven (no specific functional form or parameterization), interpretable (identifies explainable patterns), and flexible (applicable to dynamic and streaming networks). Moreover, the interpretable behavioral roles are generalizable, computationally efficient, and natively supports attributes. We applied our model for (a) identifying patterns and trends of nodes and network states based on the temporal behavior, (b) predicting future structural changes, and (c) detecting unusual temporal behavior transitions. We use eight large real-world datasets from different time-evolving settings (dynamic and streaming). In particular, we model the evolving mixed-memberships and the corresponding behavioral transitions of Twitter, Facebook, IP-Traces, Email (University), Internet AS, Enron, Reality, and IMDB. The experiments demonstrate the scalability, flexibility, and effectiveness of our model for identifying interesting patterns, detecting unusual structural transitions, and predicting the future structural changes of the network and individual nodes.

  19. TEMPORAL PATTERN DISCOVERY FOR ANOMALY DETECTION IN A SMART HOME

    E-Print Network [OSTI]

    Cook, Diane J.

    TEMPORAL PATTERN DISCOVERY FOR ANOMALY DETECTION IN A SMART HOME Vikramaditya Jakkula , Diane J, cook}@eecs.wsu.edu Keywords: Knowledge discovery, smart homes, anomaly detection, temporal relations and relations on smart home datasets [10]. This paper describes a method of discovering temporal relations

  20. A Foundation for Conventional and Temporal Query Optimization

    E-Print Network [OSTI]

    Snodgrass, Richard T.

    substantially from built-in temporal support in the DBMS. To achieve this, temporal query representation DBMS architectures and ones where the temporal support is obtained via a layer on top of a conventional DBMS. This foundation captures duplicates and ordering for all queries, as well as coalescing

  1. Semantic-Based Temporal Text-Rule Mining Kjetil Nrvag

    E-Print Network [OSTI]

    Nørvåg, Kjetil

    is to find and/or verify temporal patterns: UK Bush Paris world weather dance Iraq dog Trondheim UK Bush Paris finances buy Iraq ISMIS university travel UK USA Enron money Time Temporal pattern (UK Bush) (Iraq) ? dance Iraq dog Trondheim In the example above, one possible temporal rule is the terms1 UK and Bush

  2. Coherent Storage of Temporally Multimode Light Using a Spin-Wave Atomic Frequency Comb Memory

    E-Print Network [OSTI]

    Mustafa Gündo?an; Margherita Mazzera; Patrick M. Ledingham; Matteo Cristiani; Hugues de Riedmatten

    2013-01-14

    We report on coherent and multi-temporal mode storage of light using the full atomic frequency comb memory scheme. The scheme involves the transfer of optical atomic excitations in Pr3+:Y2SiO5 to spin-waves in the hyperfine levels using strong single-frequency transfer pulses. Using this scheme, a total of 5 temporal modes are stored and recalled on-demand from the memory. The coherence of the storage and retrieval is characterized using a time-bin interference measurement resulting in visibilities higher than 80%, independent of the storage time. This coherent and multimode spin-wave memory is promising as a quantum memory for light.

  3. Ash Determinations 

    E-Print Network [OSTI]

    Unknown

    2011-08-17

    Germination of Ashe juniper seed were compared in a controlled environment at different levels of fruit maturation, lengths of storage, and seed stratification to determine potential germination. Annual mean germination varied by an order...

  4. An integrated experimental and numerical study: Developing a reaction transport model that couples chemical reactions of mineral dissolution/precipitation with spatial and temporal flow variations in CO2/brine/rock systems

    Broader source: Energy.gov [DOE]

    Project objectives: Generate and characterize mineral dissolution/precipitation reactions in supercritical CO2/brine/rock systems under pressure-temperature-chemistry conditions resembling CO2injection into EGS. Characterize three-dimensional spatial and temporal distributions of rock structures subject to mineral dissolution/precipitation processes by X-ray tomography, SEM imaging, and Microprobe analysis.

  5. Unveiling temporal correlations characteristic to phase transition in the intensity of a fibre laser radiation

    E-Print Network [OSTI]

    Andres Aragoneses; Laura Carpi; Nikita Tarasov; Dmitry V. Churkin; M. C. Torrent; Cristina Masoller; Sergei K. Turitsyn

    2015-06-09

    We use advanced statistical tools of time-series analysis to characterize the dynamical complexity of the transition to optical wave turbulence in a fibre laser. Ordinal analysis and the horizontal visibility graph applied to the experimentally measured laser output intensity reveal the presence of temporal correlations during the transition from the laminar to the turbulent lasing regimes. Both methods unveil coherent structures with well defined time-scales and strong correlations both, in the timing of the laser pulses and in their peak intensities. Our approach is generic and may be used in other complex systems that undergo similar transitions involving the generation of extreme fluctuations.

  6. Reversals of fortune: path dependency, problem solving, and temporal cases

    E-Print Network [OSTI]

    Haydu, Jeffrey

    2010-01-01

    and as sequences of problem solving. American Journal ofpath dependency, problem solving, and temporal cases Jeffreyalternative: sequences of problem solving Putting actors at

  7. Spatial and temporal variations in indoor environmental conditions...

    Office of Scientific and Technical Information (OSTI)

    conditions, human occupancy, and operational characteristics in a new hospital building Prev Next Title: Spatial and temporal variations in indoor environmental...

  8. Temporal Relations of Volcanism and Hydrothermal Systems in Two...

    Open Energy Info (EERE)

    Geology, 1989 DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for Temporal Relations of Volcanism and Hydrothermal Systems in Two Areas of...

  9. Temporal Velocity Variations beneath the Coso Geothermal Field...

    Open Energy Info (EERE)

    Temporal Velocity Variations beneath the Coso Geothermal Field Observed using Seismic Double Difference Tomography of Compressional and Shear Wave Arrival Times Jump to:...

  10. Ferrocyanide waste simulant characterization

    SciTech Connect (OSTI)

    Jeppson, D.W.; Wong, J.J.

    1993-01-01

    Ferrocyanide waste simulants were prepared and characterized to help assess safety concerns associated with the ferrocyanide sludges stored in underground single-shell waste tanks at the Hanford Site. Simulants were prepared to represent the variety of ferrocyanide sludges stored in the storage tanks. Physical properties, chemical compositions, and thermodynamic properties of the simulants were determined. The simulants, as produced, were shown to not sustain propagating reactions when subjected to a strong ignition source. Additional testing and evaluations are recommended to assess safety concerns associated with postulated ferrocyanide sludge dry-out and exposure to external ignition sources.

  11. Network Characterization Service (NCS)

    SciTech Connect (OSTI)

    Jin, Guojun; Yang, George; Crowley, Brian; Agarwal, Deborah

    2001-06-06

    Distributed applications require information to effectively utilize the network. Some of the information they require is the current and maximum bandwidth, current and minimum latency, bottlenecks, burst frequency, and congestion extent. This type of information allows applications to determine parameters like optimal TCP buffer size. In this paper, we present a cooperative information-gathering tool called the network characterization service (NCS). NCS runs in user space and is used to acquire network information. Its protocol is designed for scalable and distributed deployment, similar to DNS. Its algorithms provide efficient, speedy and accurate detection of bottlenecks, especially dynamic bottlenecks. On current and future networks, dynamic bottlenecks do and will affect network performance dramatically.

  12. Use of volumetric features for temporal comparison of mass lesions in full field digital mammograms

    SciTech Connect (OSTI)

    Bozek, Jelena Grgic, Mislav; Kallenberg, Michiel; Karssemeijer, Nico

    2014-02-15

    Purpose: Temporal comparison of lesions might improve classification between benign and malignant lesions in full-field digital mammograms (FFDM). The authors compare the use of volumetric features for lesion classification, which are computed from dense tissue thickness maps, to the use of mammographic lesion area. Use of dense tissue thickness maps for lesion characterization is advantageous, since it results in lesion features that are invariant to acquisition parameters. Methods: The dataset used in the analysis consisted of 60 temporal mammogram pairs comprising 120 mediolateral oblique or craniocaudal views with a total of 65 lesions, of which 41 were benign and 24 malignant. The authors analyzed the performance of four volumetric features, area, and four other commonly used features obtained from temporal mammogram pairs, current mammograms, and prior mammograms. The authors evaluated the individual performance of all features and of different feature sets. The authors used linear discriminant analysis with leave-one-out cross validation to classify different feature sets. Results: Volumetric features from temporal mammogram pairs achieved the best individual performance, as measured by the area under the receiver operating characteristic curve (A{sub z} value). Volume change (A{sub z} = 0.88) achieved higher A{sub z} value than projected lesion area change (A{sub z} = 0.78) in the temporal comparison of lesions. Best performance was achieved with a set that consisted of a set of features extracted from the current exam combined with four volumetric features representing changes with respect to the prior mammogram (A{sub z} = 0.90). This was significantly better (p = 0.005) than the performance obtained using features from the current exam only (A{sub z} = 0.77). Conclusions: Volumetric features from temporal mammogram pairs combined with features from the single exam significantly improve discrimination of benign and malignant lesions in FFDM mammograms compared to using only single exam features. In the comparison with prior mammograms, use of volumetric change may lead to better performance than use of lesion area change.

  13. STQL --A SPATIO-TEMPORAL QUERY LANGUAGE Martin Erwig

    E-Print Network [OSTI]

    Erwig, Martin

    evolutions of spatial objects over time. We consider spatio- temporal operations that are particularly useful is to provide a DBMS data model and query language capable of handling such time-dependent geome- tries. Thereby. Our modeling also includes the sim- pler, discrete case where temporal evolutions are stepwise

  14. Negotiation for Automated Generation of Temporal Multimedia Presentations

    E-Print Network [OSTI]

    Hollerer, Tobias

    Negotiation for Automated Generation of Temporal Multimedia Presentations Mukesh Dalal, Steven, are involved. We de- scribe the design and implementation of a knowledge-based system that generates customized speech, written text, and graphics are generated and coordinated. Our emphasis is on how temporal media

  15. Network architecture and spatio-temporally symmetric dynamics

    E-Print Network [OSTI]

    Török, Andrew

    Network architecture and spatio-temporally symmetric dynamics Kresimir Josi´c Department such dynamics robustly. These characteristics of network architecture are not captured by the typical general architectures and dynamics. Key words: Spatio-temporal patterns, coupled cell network PACS: 05

  16. Spatio-temporal modelling of corrosion in an industrial furnace

    E-Print Network [OSTI]

    Little, John

    Spatio-temporal modelling of corrosion in an industrial furnace John Little, Michael Goldstein) 191 334 3051 Abstract Optimal inspection and maintenance of complex systems in modern industry-scale industrial furnace subject to corrosion will be considered. A suitable Bayesian spatio-temporal dynamic

  17. On Managing Temporal Information for Handling Durative Actions in LPG

    E-Print Network [OSTI]

    Gerevini, Alfonso E.

    On Managing Temporal Information for Handling Durative Actions in LPG Alfonso Gerevini, Alessandro Branze 38, 25123 Brescia, Italy fgerevini,saetti,serinag@ing.unibs.it Abstract. LPG is a recent planner good performance. This paper focuses on how LPG represents and manages temporal information to handle

  18. SALT--Structured Assertion Language for Temporal Logic

    E-Print Network [OSTI]

    Cengarle, María Victoria

    SALT--Structured Assertion Language for Temporal Logic Andreas Bauer, Martin Leucker , and Jonathan,leucker,streit}@informatik.tu-muenchen.de Abstract. This paper presents Salt. Salt is a general purpose speci- fication and assertion language other formalisms used for temporal specification of properties, Salt does not target a specific domain

  19. SALT---Structured Assertion Language for Temporal Logic

    E-Print Network [OSTI]

    Leucker, Martin

    SALT---Structured Assertion Language for Temporal Logic Andreas Bauer, Martin Leucker,leucker,streit}@informatik.tu­muenchen.de Abstract. This paper presents Salt. Salt is a general purpose speci­ fication and assertion language other formalisms used for temporal specification of properties, Salt does not target a specific domain

  20. Temporal Logic in Information Systems BRICS Minicourse Lecture Notes \\Lambda

    E-Print Network [OSTI]

    Toman, David

    Temporal Logic in Information Systems BRICS Mini­course Lecture Notes \\Lambda Jan Chomicki Dept the fundamental vari­ eties of temporal logic and describe their applications in information systems. Several of the Danish National Research Foundation, 1997. c fl Jan Chomicki and David Toman, 1997. Full version

  1. Temporal Support for Persistent Stored Modules Richard T. Snodgrass 1

    E-Print Network [OSTI]

    Snodgrass, Richard T.

    -complete portion of SQL, that of persistent stored modules (PSM). Our approach requires minor new syntax beyond that already in SQL/Temporal to define and to invoke PSM procedures and functions, thereby extending a transformation that converts Temporal SQL/PSM to conventional SQL/PSM. To support sequenced eval- uation

  2. TEMPORAL AND SPATIAL PREDICTION OF RADIOCAESIUM TRANSFER TO FOOD PRODUCTS

    E-Print Network [OSTI]

    Crout, Neil

    1 TEMPORAL AND SPATIAL PREDICTION OF RADIOCAESIUM TRANSFER TO FOOD PRODUCTS A.G. GILLETT1 , N #12;2 ABSTRACT A recently developed semi-mechanistic temporal model to is used predict food product (exchangeable K, pH, % clay and % organic matter content). A raster database of soil characteristics

  3. Adaptable Query Optimization and Evaluation in Temporal Middleware

    E-Print Network [OSTI]

    Snodgrass, Richard T.

    that such data- base applications may benefit substantially from built-in temporal support in the DBMS the DBMS proper or as a source level translation from temporal queries to conventional SQL. This paper proposes a new approach: using a middleware component on top of a conventional DBMS. This component accepts

  4. Implementing Temporal Integrity Constraints Using an Active DBMS

    E-Print Network [OSTI]

    Toman, David

    Implementing Temporal Integrity Constraints Using an Active DBMS David Toman Jan Chomicki constraints formu­ lated in past temporal logic into rules of the Starburst DBMS. During the compilation Logic; the constraint checking can then be done with­ out referring to the whole past history

  5. Handling Database Updates in Two-dimensional Temporal Logic

    E-Print Network [OSTI]

    Finger, Marcelo

    Handling Database Updates in Two-dimensional Temporal Logic Marcelo Finger y Department (Draft version 0.2) Abstract This paper deals with the description of the evolution of the understanding in database systems due to updates. For this purpose, we introduce a two-dimensional temporal logic

  6. Predicting Protein Folding Kinetics via Temporal Logic Model Checking

    E-Print Network [OSTI]

    Predicting Protein Folding Kinetics via Temporal Logic Model Checking Christopher James Langmead award from the U.S. Department of Energy. #12;Keywords: protein folding, model checking, temporal logic #12;Abstract We present a novel approach for predicting protein folding kinetics using techniques from

  7. Constraint Orientated Specification with CSP and Real Time Temporal Logic

    E-Print Network [OSTI]

    Kent, University of

    Constraint Orientated Specification with CSP and Real Time Temporal Logic Justin Pearson Department Processes (CSP) [Hoa85] and a version of Propositional Temporal Logic (PTL), derived from [Eme90]. CSP. The behaviour of a CSP process is dependent on its environment; it is therefore difficult to assert global

  8. Spatial Patterns and Temporal Trajectories of the Bog Ground Layer

    E-Print Network [OSTI]

    Benscoter, Brian W.

    Spatial Patterns and Temporal Trajectories of the Bog Ground Layer Along a Post-Fire Chronosequence following fire is poorly understood. Here we assess spatial and temporal changes in community composition along a chronosequence of post-fire bogs (1­105 years since fire) in north central Alberta, Canada. We

  9. Method for determining formation quality factor from well log...

    Office of Scientific and Technical Information (OSTI)

    determining formation quality factor from well log data and its application to seismic reservoir characterization Citation Details In-Document Search Title: Method for...

  10. Stratum Approaches to Temporal DBMS Implementation Kristian Torp Christian S. Jensen

    E-Print Network [OSTI]

    Snodgrass, Richard T.

    Stratum Approaches to Temporal DBMS Implementation Kristian Torp Christian S. Jensen Department temporal DBMSs have assumed that a temporal DBMS must be built from scratch, employing an integrated a temporal DBMS as a stratum on top of an existing non-temporal DBMS, rendering implementation more feasible

  11. Temporal variations in temperature over Northeastern Africa 

    E-Print Network [OSTI]

    Peterson, Robby Douglas

    1994-01-01

    unavailable data from Northeastern Africa from 1900 to 1950, the data are analyzed to determine whether thermal patterns are identifiable in maximum and minimum temperatures over smaller scales in the tropics and sub-tropics. First, the Alexandersson Test...

  12. Reward system and temporal pole contributions to affective evaluation during a first person shooter video game

    E-Print Network [OSTI]

    Mathiak, Krystyna A; Klasen, Martin; Weber, René; Ackermann, Hermann; Shergill, Sukhwinder S; Mathiak, Klaus

    2011-01-01

    Y: The Enigmatic temporal pole: a review of findings onS, Miyashita Y: Temporal pole activity during perception ofReward system and temporal pole contributions to affective

  13. Optic probe for semiconductor characterization

    DOE Patents [OSTI]

    Sopori, Bhushan L. (Denver, CO); Hambarian, Artak (Yerevan, AM)

    2008-09-02

    Described herein is an optical probe (120) for use in characterizing surface defects in wafers, such as semiconductor wafers. The optical probe (120) detects laser light reflected from the surface (124) of the wafer (106) within various ranges of angles. Characteristics of defects in the surface (124) of the wafer (106) are determined based on the amount of reflected laser light detected in each of the ranges of angles. Additionally, a wafer characterization system (100) is described that includes the described optical probe (120).

  14. Simultaneous determination of mass and thermal accommodation coefficients from temporal evolution

    E-Print Network [OSTI]

    of Physics of the Polish Academy of Sciences, al.Lotnik´ow 32/46, 02-668 Warsaw, Poland E-mail: jakub: J. Phys. D: Appl. Phys. 1. Introduction The processes of evaporation and condensation coefficient with a so called evaporation (condensation) or mass accommodation coefficient C. Likewise

  15. USING TEMPORAL COHERENCE TO DETERMINE THE RESPONSE TO CLIMATE CHANGE IN BOREAL SHIELD LAKES

    E-Print Network [OSTI]

    Arnott, Shelley

    . In some lakes in Sudbury and Dorset, pH was dependent on extreme events. For example, El Nino related frequency of El Nino events (Urban et al., 2000). An important challenge is to predict how these changes

  16. Oil & Natural Gas Technology Temporal Characterization of Hydrates System Dynamics beneath Seafloor

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass mapSpeeding access toOctober 1996 -Workers'OfficialSan Miguel CountyOklahoma City,Oil

  17. High-order temporal coherences of chaotic and laser light

    E-Print Network [OSTI]

    Berggren, Karl K.

    We demonstrate a new approach to measuring high-order temporal coherences that uses a four-element superconducting nanowire single-photon detector. The four independent, interleaved single-photon-sensitive elements parse ...

  18. Cineplastic : temporal paradox in the movement-image medium

    E-Print Network [OSTI]

    Hanks, Travis W. (Travis Wesley)

    2006-01-01

    It could be argued that the term 'digital' as a prefix to architecture is evidence that contemporary design practice is lost in time. Modernity's predilection of spatial constructs over temporal ones continues to cast a ...

  19. Temporally Scalable Visual SLAM using a Reduced Pose Graph

    E-Print Network [OSTI]

    Johannsson, Hordur

    2012-05-25

    In this paper, we demonstrate a system for temporally scalable visual SLAM using a reduced pose graph representation. Unlike previous visual SLAM approaches that use keyframes, our approach continually uses new measurements ...

  20. Temporal Geochemical Variations In Volatile Emissions From Mount...

    Open Energy Info (EERE)

    Temporal Geochemical Variations In Volatile Emissions From Mount St Helens, Usa, 1980-1994 Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article:...

  1. Temporally scalable visual SLAM using a reduced pose graph

    E-Print Network [OSTI]

    Johannsson, Hordur

    In this paper, we demonstrate a system for temporally scalable visual SLAM using a reduced pose graph representation. Unlike previous visual SLAM approaches that maintain static keyframes, our approach uses new measurements ...

  2. Learning temporal statistics for sensory predictions in mild cognitive impairment

    E-Print Network [OSTI]

    Di Bernardi Luft, Caroline; Baker, Rosalind; Bentham, Peter; Kourtzi, Zoe

    2015-06-18

    of processing and longer response times (Curran, 1997; Simon, Yokomizo, & Bottino, 2012). In contrast, using an explicit prediction test, we demonstrate that predictions related to identification of objects are facilitated by implicit knowledge of temporal...

  3. Spatio-Temporal Conceptual Models: Data Structures + Space + Time

    E-Print Network [OSTI]

    Libre de Bruxelles, Université

    facilities. Responses to such requirements may be found in Geographic Information Systems (GIS), in some DBMS are needed. Major DBMS tools are incorporating facilities for spatial or temporal data management (e

  4. Spatio-temporal resolution of primary processes of photosynthesis

    E-Print Network [OSTI]

    Junge, Wolfgang

    Spatio-temporal resolution of primary processes of photosynthesis Wolfgang Junge* Received 24th the founders of atomic and molecular physics convened in 1927 at the 5th Solvay Conference on "Electrons

  5. Predicting Protein Folding Kinetics via Temporal Logic Model Checking: Extended

    E-Print Network [OSTI]

    Langmead, Christopher James

    Predicting Protein Folding Kinetics via Temporal Logic Model Checking: Extended Abstract Abstract. We present a novel approach for predicting protein folding kinetics using techniques from checking. We tested our method on 19 test proteins. The quantitative predictions regarding folding rates

  6. On Temporal Planning as CSP Amol Dattatraya Mali

    E-Print Network [OSTI]

    Mali, Amol D.

    On Temporal Planning as CSP Amol Dattatraya Mali Electrical Engg. & Computer Science, University of Wisconsin, Milwaukee, WI 53211 mali@miller.cs.uwm.edu, Fax: 1­414­229­2769 Abstract (Appears as a regular

  7. On Temporal Planning as CSP Amol Dattatraya Mali

    E-Print Network [OSTI]

    Mali, Amol D.

    On Temporal Planning as CSP Amol Dattatraya Mali Electrical Engg. & Computer Science, University of Wisconsin, Milwaukee, WI 53211 mali@miller.cs.uwm.edu, Fax: 1-414-229-2769 Abstract (Appears as a regular

  8. Time-Varying Networks: Recovering Temporally Rewiring Genetic

    E-Print Network [OSTI]

    Murphy, Robert F.

    structures. Using a new machine learning method called Tesla, which builds on a novel temporal logistic regression technique, we report the first successful genome-wide reverse- engineering of the latent sequence

  9. Spatio-temporal Bounded Noises, and transitions induced by them in solutions of real Ginzburg-Landau model

    E-Print Network [OSTI]

    Sebastiano de Franciscis; Alberto d'Onofrio

    2012-05-23

    In this work, we introduce two spatio-temporal colored bounded noises, based on the zero-dimensional Cai-Lin and Tsallis-Borland noises. We then study and characterize the dependence of the defined bounded noises on both a temporal correlation parameter $\\tau$ and on a spatial coupling parameter $\\lambda$. The boundedness of these noises has some consequences on their equilibrium distributions. Indeed in some cases varying $\\lambda$ may induce a transition of the distribution of the noise from bimodality to unimodality. With the aim to study the role played by bounded noises on nonlinear dynamical systems, we investigate the behavior of the real Ginzburg-Landau time-varying model additively perturbed by such noises. The observed phase transitions phenomenology is quite different from the one observed when the perturbations are unbounded. In particular, we observed an inverse "order-to-disorder" transition, and a re-entrant transition, with dependence on the specific type of bounded noise.

  10. Temporal Stability of Visual Search-Driven Biometrics

    SciTech Connect (OSTI)

    Yoon, Hong-Jun; Carmichael, Tandy; Tourassi, Georgia

    2015-01-01

    Previously, we have shown the potential of using an individual s visual search pattern as a possible biometric. That study focused on viewing images displaying dot-patterns with different spatial relationships to determine which pattern can be more effective in establishing the identity of an individual. In this follow-up study we investigated the temporal stability of this biometric. We performed an experiment with 16 individuals asked to search for a predetermined feature of a random-dot pattern as we tracked their eye movements. Each participant completed four testing sessions consisting of two dot patterns repeated twice. One dot pattern displayed concentric circles shifted to the left or right side of the screen overlaid with visual noise, and participants were asked which side the circles were centered on. The second dot-pattern displayed a number of circles (between 0 and 4) scattered on the screen overlaid with visual noise, and participants were asked how many circles they could identify. Each session contained 5 untracked tutorial questions and 50 tracked test questions (200 total tracked questions per participant). To create each participant s "fingerprint", we constructed a Hidden Markov Model (HMM) from the gaze data representing the underlying visual search and cognitive process. The accuracy of the derived HMM models was evaluated using cross-validation for various time-dependent train-test conditions. Subject identification accuracy ranged from 17.6% to 41.8% for all conditions, which is significantly higher than random guessing (1/16 = 6.25%). The results suggest that visual search pattern is a promising, fairly stable personalized fingerprint of perceptual organization.

  11. From Temporal GIS to Dynamics GIS

    E-Print Network [OSTI]

    Yuan, May

    2008-11-19

    Snapshots fields objects Discover Geographic Dynamics Collaborator: John McIntosh Data for Our Case Study • The Arkansas Red River Basin Forecast Center generates hourly radar derived digital precipitation arrays – 8760 raster layers per year Arkansas... and measurements. • The observed remains the same. • Grain and scale determine what and how much of the observed that the observer is able to obtain for examination. Identification of Entities • Definitional entities: – Observer- generated to outline what...

  12. Query Plans for Conventional and Temporal Queries Involving Duplicates and Ordering

    E-Print Network [OSTI]

    Snodgrass, Richard T.

    substantially from built- in temporal support in the DBMS. To achieve this, temporal query representation for providing temporal support both via a stand-alone temporal DBMS and via a layer on top of a conventional DBMS. By capturing duplicate removal and retention and order preservation for all queries, as well

  13. Topological Properties and Temporal Dynamics of Place Networks in Urban Environments

    E-Print Network [OSTI]

    Noulas, Anastasios; Lambiotte, Renaud; Mascolo, Cecilia

    2015-01-01

    Understanding the spatial networks formed by the trajectories of mobile users can be beneficial to applications ranging from epidemiology to local search in modern mobile applications. Despite the potential for impact in a number of fields, several aspects of human mobility networks remain largely unexplored due to the lack of large-scale data at a fine spatiotemporal resolution. Using a longitudinal dataset from the location-based service Foursquare, we perform an empirical analysis on the growth patterns, temporal dynamics and topological properties of place networks in urban environments. Despite their highly dynamic nature in terms of new edge generation, these networks demonstrate evolutionary properties that are remarkably consistent across a diverse set of one hundred metropolitan areas from around the globe. In terms of topological properties, place networks are similar to online social networks, being characterized by heavy-tailed degree distributions, triadic closure mechanisms and the small world p...

  14. Rock Physics Based Determination of Reservoir Microstructure for Reservoir Characterization 

    E-Print Network [OSTI]

    Adesokan, Hamid 1976-

    2013-01-09

    of pore shape distribution is needed to explain the often-encountered complex interrelationship between seismic parameters (e.g. seismic velocity) and the independent physical properties (e.g. porosity) of hydrocarbon reservoirs. However, our knowledge...

  15. Direct characterization of linear-optical networks

    E-Print Network [OSTI]

    Saleh Rahimi-Keshari; Matthew A. Broome; Robert Fickler; Alessandro Fedrizzi; Timothy C. Ralph; Andrew G. White

    2013-05-31

    We introduce an efficient method for fully characterizing multimode linear-optical networks. Our approach requires only a standard laser source and intensity measurements to directly and uniquely determine all moduli and non-trivial phases of the matrix describing a network. We experimentally demonstrate the characterization of a $6{\\times}6$ fiber-optic network and independently verify the results via nonclassical two-photon interference.

  16. Classical Propagation of Light in Spatio-Temporal Periodic Media

    E-Print Network [OSTI]

    Alexandrov, B S; Findikoglu, A T; Bishop, A R; Kostadinov, I Z

    2006-01-01

    We analyze the propagation of electromagnetic waves in media where the dielectric constants undergo rapid temporal periodic modulation. Both spatially homogeneous and periodic media are studied. Fast periodic temporal modulation of the dielectric constant of a homogeneous medium leads to existence of photonic band-gap like phenomena. In the presence of both spatial and tem- poral periodicity the electromagnetic spectrum is described in a four-dimensional cube, defining an effective Brillouin zone. In the case of incommensurability between space and time periodicities, completely dispersed point spectra exist.

  17. Photon temporal modes: a complete framework for quantum information science

    E-Print Network [OSTI]

    B. Brecht; Dileep V. Reddy; C. Silberhorn; M. G. Raymer

    2015-07-30

    Field-orthogonal temporal modes of photonic quantum states provide a new framework for quantum information science (QIS). They intrinsically span a high-dimensional Hilbert space and lend themselves to integration into existing single-mode fiber communication networks. We show that the three main requirements to construct a valid framework for QIS -- the controlled generation of resource states, the targeted and highly efficient manipulation of temporal modes and their efficient detection -- can be fulfilled with current technology. We suggest implementations of diverse QIS applications based on this complete set of building blocks.

  18. Reservoir Characterization Research Laboratory

    E-Print Network [OSTI]

    Texas at Austin, University of

    Reservoir Characterization Research Laboratory for Carbonate Studies Executive Summary for 2014 Outcrop and Subsurface Characterization of Carbonate Reservoirs for Improved Recovery of Remaining/Al 0.00 0.02 0.04 Eagle Ford Fm #12;#12; Reservoir Characterization Research Laboratory Research Plans

  19. CHARACTERIZATION Volume 1: Report

    E-Print Network [OSTI]

    #12;EFFLUENT CHARACTERIZATION STUDY Volume 1: Report for FRASER RIVER ESTUARY MANAGEMENT PROGRAM Report No.: F07201RP.J11 #12;EFFLUENT CHARACTERIZATION STUDY i PREFACE The Fraser River Estuary Resource Inc. (TRI) was contracted to characterize the effluent from eleven industrial sites. Mc

  20. The role of magnetic islands in modifying long range temporal correlations of density fluctuations and local heat transport

    E-Print Network [OSTI]

    van Milligen, B Ph; Garcia, L; Bruna, D Lopez; Carreras, B A; Xu, Y; Ochando, M; Hidalgo, C; Reynolds-Barredo, J M; Fraguas, A Lopez

    2015-01-01

    This work explores the relation between magnetic islands, long range temporal correlations and heat transport. A low order rational surface ($\\iota/2\\pi = 3/2$) was purposely scanned outward through an Electron Cyclotron Resonance Heated (ECRH) plasma in the TJ-II stellarator. Density turbulence and the poloidal flow velocity (or radial electric field) were characterized using a two channel Doppler Reflectometer. Simultaneously, the ECRH power was modulated to characterize heat transport, using measurements from a 12 channel Electron Cyclotron Emission diagnostic. A systematic variation of the poloidal velocity was found to be associated with the stationary $\\iota/2\\pi = 3/2$ magnetic island. Inside from the rational surface, the Hurst coefficient, quantifying the nature of long-range correlations, was found to be significantly enhanced. Simultaneously, heat transport was enhanced as well, establishing a clear link between density fluctuations and anomalous heat transport. The variation of the Hurst coefficie...

  1. Temporal Information Extraction Xiao Ling and Daniel S. Weld

    E-Print Network [OSTI]

    Temporal Information Extraction Xiao Ling and Daniel S. Weld Department of Computer Science and Engineering University of Washington Seattle, WA 98195-2350, U.S.A. {xiaoling, weld- supervised probabilistic sequential models (Banko et al. 2007; Wu and Weld 2007), and numerous other ap

  2. TEMPORAL PERFORMANCE EVALUATION OF CONTROL ARCHITECTURE IN AUTOMATION

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    TEMPORAL PERFORMANCE EVALUATION OF CONTROL ARCHITECTURE IN AUTOMATION SYSTEMS Pascal Meunier, Bruno, France pascal.meunier@lurpa.ens-cachan.fr (Pascal Meunier) Abstract The performances of automation are the merger of a hardware structure ­ industrial computers and logic controllers connected to networks

  3. A Spatio-Temporal Point Process Model for Ambulance Demand

    E-Print Network [OSTI]

    Woodard, Dawn B.

    (EMS) managers need accurate demand estimates to mini- mize response times to emergencies and keep. Several studies have modeled aggregate ambulance demand as a temporal process. Channouf et al. (2007) use by combining a dynamic latent factor structure with integer time series models. Other aggregate demand studies

  4. Incorporating Temporal Reasoning into Activity Recognition for Smart Home Residents

    E-Print Network [OSTI]

    Cook, Diane J.

    Incorporating Temporal Reasoning into Activity Recognition for Smart Home Residents Geetika Singla be employed for valuable functions such as at- home health monitoring. In this project, we are using smart-2752 {gsingla, djcook, schmitter-e}@wsu.edu Abstract Smart environments rely on artificial intelligence

  5. On the Expressive Power of Temporal Concurrent Constraint Programming Languages

    E-Print Network [OSTI]

    Valencia, Frank D.

    On the Expressive Power of Temporal Concurrent Constraint Programming Languages Mogens Nielsen behavior have been proposed in the literature. In this paper we study the expressive power of some programming, timed systems, expressiveness The contribution of Mogens Nielsen and Frank D. Valen- cia

  6. MOBILE PHONE USE AND TEMPORAL SKIN HEAT SENSATION

    E-Print Network [OSTI]

    Boyer, Edmond

    in the phone by the battery currents and running of the radiofrequency (RF) electronic circuits measured the temperature of the temporal skin due to GSM 1800 MHz MP radiated power (125 mW). We suppressed of the heat produced in the phone by the battery currents and running of the radiofrequency (RF) electronic

  7. Does blending of chlorophyll data bias temporal trend?

    E-Print Network [OSTI]

    Myers, Ransom A.

    Does blending of chlorophyll data bias temporal trend? ARISING FROM D. G. Boyce, M. R. Lewis & B of the bias component. To obtain a larger and longer data set, Boyce et al.1 pooled estimates of local, CT 5 457 D22.37 . Blending of data types can introduce error unless their expected values E(CT) and E

  8. Temporal Index Sharding for Space-Time Efficiency

    E-Print Network [OSTI]

    Waldmann, Uwe

    each index list with almost zero increase in index size but still minimizes the cost of reading indexTemporal Index Sharding for Space-Time Efficiency in Archive Search Avishek Anand Srikanta Bedathur involve slicing either the entire collection [19] or individual index lists [9] along the time-axis. Both

  9. Spatio-Temporal Signal Recovery from Political Tweets in Indonesia

    E-Print Network [OSTI]

    Davulcu, Hasan

    Spatio-Temporal Signal Recovery from Political Tweets in Indonesia Anisha Mazumder, Arun Das activity in the provinces of Indonesia. Based on analysis of radical/counter radical sentiments expressed in tweets by Twitter users, we create a Heat Map of Indonesia which visually demonstrates the degree

  10. Using Temporal Logics to Express Search Control Knowledge for Planning

    E-Print Network [OSTI]

    Kabanza, Froduald

    of hierarchical task network (HTN) planners have been stud- ied in the literature and utilized in planning systemsUsing Temporal Logics to Express Search Control Knowledge for Planning Fahiem Bacchus Dept kabanza@dmi.usherb.ca June 7, 1999 Abstract Over the years increasingly sophisticated planning algorithms

  11. Temporal Conditions and Integrity Constraints in Active Database Systems \\Lambda

    E-Print Network [OSTI]

    Wolfson, Ouri E.

    to specify conditions that involve both, events and database states, and their evolution over time. BasicallyTemporal Conditions and Integrity Constraints in Active Database Systems \\Lambda A. Prasad Sistla, for specifying conditions and events in the rules for active database sys­ tem. This language permits

  12. The GLIMS Glacier Database: a spatio-temporal database

    E-Print Network [OSTI]

    Raup, Bruce H.

    The GLIMS Glacier Database: a spatio-temporal database implemented using Open Source tools Bruce countries #12;#12;#12;#12;#12;System components PostgreSQL (relational database) PostGIS (geospatial) GDAL (Geospatial Data Abstraction Library) Perl, PHP, Shapelib, ... #12;GLIMS Glacier Database System

  13. Football analysis using spatio-temporal tools Joachim Gudmundsson

    E-Print Network [OSTI]

    Wolle, Thomas

    Football analysis using spatio-temporal tools Joachim Gudmundsson University of Sydney and NICTA, Australia thomas.wolle@gmail.com ABSTRACT Analysing a football match is without doubt an important task specifically for analysing the performance of football players and teams. The aim, functionality

  14. Spatio-Temporal Credit Assignment in Neuronal Population Learning

    E-Print Network [OSTI]

    Senn, Walter

    provides a viable mechanism for temporal credit assignment. Further, learning speeds up with increasing). The funders had no role in study design, data collection and analysis, decision to publish, or preparation they are adaptive, synapses may be viewed as the elementary decision making entities in the brain

  15. Scaling Behavior in the Temporal Context Model Marc W. Howard

    E-Print Network [OSTI]

    Howard, Marc

    Scaling Behavior in the Temporal Context Model Marc W. Howard Department of Psychology Syracuse numerous helpful comments on an earlier draft. Supported by 2-RO1 MH55687. Corre- spondence to Marc Howard, Syracuse University, Department of Psychology, 430 Huntington Hall, Syracuse, NY 13244-2340, or marc

  16. JournalofCellScience ERK and phosphoinositide 3-kinase temporally

    E-Print Network [OSTI]

    Amaya, Enrique

    JournalofCellScience ERK and phosphoinositide 3-kinase temporally coordinate different modes and distinct downstream targets. The sequential activation of ERK and phosphoinositide 3-kinase (PI3K) signalling divides Xenopus embryonic wound healing into two phases. In the first phase, activated ERK

  17. University of Alberta Gradient Temporal-Difference Learning Algorithms

    E-Print Network [OSTI]

    Sutton, Richard S.

    University of Alberta Gradient Temporal-Difference Learning Algorithms by Hamid Reza Maei A thesis, Alberta Permission is hereby granted to the University of Alberta Libraries to reproduce single copies the thesis is converted to, or otherwise made available in digital form, the University of Alberta

  18. Temporal coupled-mode theory for resonant Lieven Verslegers,1,

    E-Print Network [OSTI]

    Fan, Shanhui

    are concepts that are fundamentally important for character- izing electromagnetic properties of individualTemporal coupled-mode theory for resonant apertures Lieven Verslegers,1, * Zongfu Yu,1 Peter B 9, 2010 We develop the coupled-mode theory for nanoscale resonant apertures. We show

  19. Multivariate Receptor Modeling for Temporally Correlated Data by Using MCMC

    E-Print Network [OSTI]

    Washington at Seattle, University of

    Multivariate Receptor Modeling for Temporally Correlated Data by Using MCMC Eun Sug Park Peter Protection Agency which provides the Center's primary funding. #12;Multivariate Receptor Modeling Multivariate receptor modeling aims to estimate pollution source profiles and the amounts of pollution based

  20. Circuit Area Optimization in Energy Temporal Sparse Scenarios for

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

    Circuit Area Optimization in Energy Temporal Sparse Scenarios for Multiple Harvester Powered.alarcon@upc.edu Abstract--Multi-source energy harvesters are gaining interest as a robust alternative to power wireless sensors, since the sensor node can maintain its operation regardless of the fact that one of its energy

  1. A Temporal Threshold for Formaldehyde Crosslinking and Fixation

    E-Print Network [OSTI]

    MacDonald, Andrew

    A Temporal Threshold for Formaldehyde Crosslinking and Fixation Lars Schmiedeberg. , Pete Skene, United Kingdom Abstract Background: Formaldehyde crosslinking is in widespread use as a biological in the microscope after formaldehyde fixation, though they are obvious in live cells. The stark contrast between

  2. Spatio-Temporal Optical Flow Statistics (STOFS) for Activity Classification

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    al's 30-pixel man [5], and Roth and Black's idea [9] of learning optical flow statis- tics to learn flow statis- tics of activities. Specifically, this work concerns itself with learning Spatio-Temporal Optical Flow histogram Statis- tics(STOFS). It should be clarified that some recent work on optical flow

  3. University of Alberta Gradient Temporal-Difference Learning Algorithms

    E-Print Network [OSTI]

    Sutton, Richard S.

    of convergence--in on-policy problems. #12;Acknowledgements This PhD thesis is developed through collaboration;Abstract We present a new family of gradient temporal-difference (TD) learning methods with func- tion- proximation. In particular, convergence cannot be guaranteed for these methods when they are used with off-policy

  4. HOMOGENEOUS TEMPORAL ACTIVITY PATTERNS IN A LARGE ONLINE

    E-Print Network [OSTI]

    Gómez, Vicenç

    technology-news website Slashdot has been studied. We have concentrated on the dynamics of message production-mails, loan registers, credit card transactions, blogs, etc. This huge amount of generated data allows the temporal patterns of the many-to-many social interaction on a technology-related news-website which

  5. NEURAL CODING OF TEMPORAL INFORMATION IN AUDITORY THALAMUS AND CORTEX

    E-Print Network [OSTI]

    Wang, Xiaoqin

    to our understanding of mecha- nisms underlying speech processing. Time-varying signals are fundamental. LU,1 D. BENDOR1 AND E. BARTLETT1 Laboratory of Auditory Neurophysiology, Department of Biomedical 21205, USA Abstract--How the brain processes temporal information embedded in sounds is a core question

  6. Revista Electrnica Nova Scientia Propagacin temporal de algunas enfermedades

    E-Print Network [OSTI]

    Cipolatti, Rolci

    Revista Electrónica Nova Scientia Propagación temporal de algunas enfermedades bacterianas: un: a mathematical model Revista Electrónica Nova Scientia, Nº 8 Vol. 4 (2), 2012. ISSN 2007 - 0705. pp: 42 - 65 - 43;Cipolatti, R. et al. Revista Electrónica Nova Scientia, Nº 8 Vol. 4 (2), 2012. ISSN 2007 - 0705. pp: 42 ­ 65

  7. The Post Anachronism: The Temporal Dimension of Facebook Privacy

    E-Print Network [OSTI]

    Bauer, Lujo

    The Post Anachronism: The Temporal Dimension of Facebook Privacy Lujo Bauer , Lorrie Faith Cranor the audience and emphasis of Facebook posts change over time. In a 63-participant longitudinal study, par- ticipants gave their audience and emphasis preferences for up to ten of their Facebook posts in the week

  8. Ground surface temperatures in Canada: Spatial and temporal variability

    E-Print Network [OSTI]

    Long, Bernard

    show that the ground has warmed about 0.7 K in the last 100 years. Spatial variability is significant temperatures in Canada: Spatial and temporal variability, Geophys. Res. Lett., 30(10), 1499, doi:10.1029/2003GL inferred from geothermal data have shown that the study of perturbations to the Earth's energy balance

  9. Optimal Control with Weighted Average Costs and Temporal Logic Specifications

    E-Print Network [OSTI]

    Murray, Richard M.

    Optimal Control with Weighted Average Costs and Temporal Logic Specifications Eric M. Wolff Control and Dynamical Systems California Institute of Technology Pasadena, California 91125 Email: ewolff@caltech.edu Ufuk Topcu Control and Dynamical Systems California Institute of Technology Pasadena, California 91125

  10. Shaping Biphoton Temporal Waveforms with Modulated Classical Fields

    SciTech Connect (OSTI)

    Chen, J. F.; Zhang Shanchao; Yan Hui; Loy, M. M. T.; Wong, G. K. L.; Du Shengwang [Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon (Hong Kong)

    2010-05-07

    We experimentally demonstrate a technique for shaping the temporal quantum waveform of narrow-band biphotons generated in a cold atomic ensemble via four-wave mixing by periodically modulating the two input classical lasers. We show that it is possible to generate nonclassical paired photons with a predesigned shape of the correlation function.

  11. Precipitation event distribution in Central Argentina: spatial and temporal patterns

    E-Print Network [OSTI]

    Nacional de San Luis, Universidad

    Precipitation event distribution in Central Argentina: spatial and temporal patterns Patricio N, C1417DSE Buenos Aires, Argentina ABSTRACT The annual amount of precipitation inputs received, these inputs have to escape runoff, favoured by large and less frequent precipitation events, and evaporation

  12. Characterization Theorems by Generalized Indiscernibles

    E-Print Network [OSTI]

    Scow, Lynn Cho

    2010-01-01

    5.2 Characterization of NIP T . . . . . . . . .Property 3.3.1 Characterization: sufficiency . . . . .3.3.2 Characterization: necessity . . . . . . 4 Trees 4.1

  13. Empirical Characterization of Camera Noise

    E-Print Network [OSTI]

    Manduchi, Roberto; Baumgartner, Jeremy; Hinsche, Markus

    2013-01-01

    Empirical Characterization of Camera Noise JeremyAbstract. Noise characterization is important for severalprocedure produces a characterization of camera noise as a

  14. TECHNICAL EVALUATION OF TEMPORAL GROUNDWATER MONITORING VARIABILITY IN MW66 AND NEARBY WELLS, PADUCAH GASEOUS DIFFUSION PLANT

    SciTech Connect (OSTI)

    Looney, B.; Eddy-Dilek, C.

    2012-08-28

    Evaluation of disposal records, soil data, and spatial/temporal groundwater data from the Paducah Gaseous Diffusion Plant (PGDP) Solid Waste Management Unit (SWMU) 7 indicate that the peak contaminant concentrations measured in monitoring well (MW) 66 result from the influence of the regional PGDP NW Plume, and does not support the presence of significant vertical transport from local contaminant sources in SWMU 7. This updated evaluation supports the 2006 conceptualization which suggested the high and low concentrations in MW66 represent different flow conditions (i.e., local versus regional influences). Incorporation of the additional lines of evidence from data collected since 2006 provide the basis to link high contaminant concentrations in MW66 (peaks) to the regional 'Northwest Plume' and to the upgradient source, specifically, the C400 Building Area. The conceptual model was further refined to demonstrate that groundwater and the various contaminant plumes respond to complex site conditions in predictable ways. This type of conceptualization bounds the expected system behavior and supports development of environmental cleanup strategies, providing a basis to support decisions even if it is not feasible to completely characterize all of the 'complexities' present in the system. We recommend that the site carefully consider the potential impacts to groundwater and contaminant plume migration as they plan and implement onsite production operations, remediation efforts, and reconfiguration activities. For example, this conceptual model suggests that rerouting drainage water, constructing ponds or basin, reconfiguring cooling water systems, capping sites, decommissioning buildings, fixing (or not fixing) water leaks, and other similar actions will potentially have a 'direct' impact on the groundwater contaminant plumes. Our conclusion that the peak concentrations in MW66 are linked to the regional PGDP NW Plume does not imply that there TCE is not present in SWMU 7. The available soil and groundwater data indicate that the some of the waste disposed in this facility contacted and/or were contaminated by TCE. In our assessment, the relatively small amount of TCE associated with SWMU 7 is not contributing detectable TCE to the groundwater and does not represent a significant threat to the environment, particularly in an area where remediation and/or management of TCE in the NW plume will be required for an extended timeframe. If determined to be necessary by the PGDP team and regulators, additional TCE characterization or cleanup activities could be performed. Consistent with the limited quantity of TCE in SWMU 7, we identify a range of low cost approaches for such activities (e.g., soil gas surveys for characterization or SVE for remediation). We hope that this information is useful to the Paducah team and to their regulators and stakeholders to develop a robust environmental management path to address the groundwater and soil contamination associated with the burial ground areas.

  15. Reservoir CharacterizationReservoir Characterization Research LaboratoryResearch Laboratory

    E-Print Network [OSTI]

    Texas at Austin, University of

    Reservoir CharacterizationReservoir Characterization Research LaboratoryResearch Laboratory at Austin Austin, Texas 78713Austin, Texas 78713--89248924 #12;Reservoir Characterization Research Laboratory for Carbonate Studies Research Plans for 2012 Outcrop and Subsurface Characterization of Carbonate

  16. Petroleum characterization by perfluorocarbon tracers

    SciTech Connect (OSTI)

    Senum, G.I.; Fajer, R.W. (Brookhaven National Lab., Upton, NY (United States)); Harris, B.R. Jr. (USDOE Naval Petroleum Reserves in California, Tupman, CA (United States)); DeRose, W.E. (Bechtel Petroleum Operations, Inc., Tupman, CA (United States)); Ottaviani, W.L. (Chevron U.S.A., Inc., Bakersfield, CA (United States))

    1992-02-01

    Perfluorocarbon tracers (PFTs), a class of six compounds, were used to help characterize the Shallow Oil Zone (SOZ) reservoir at the Naval Petroleum Reserve in California (NPRC) at Elk Hills. The SOZ reservoir is undergoing a pilot gas injection program to assess the technical feasibility and economic viability of injecting gas into the SOZ for improved oil recovery. PFTs were utilized in the pilot gas injection to qualitatively assess the extent of the pilot gas injection so as to determine the degree of gas containment within the SOZ reservoir.

  17. Characterizing scientific production and consumption in Physics

    E-Print Network [OSTI]

    Zhang, Qian; Goncalves, Bruno; Ciulla, Fabio; Vespignani, Alessandro

    2013-01-01

    We analyze the entire publication database of the American Physical Society generating longitudinal (50 years) citation networks geolocalized at the level of single urban areas. We define the knowledge diffusion proxy, and scientific production ranking algorithms to capture the spatio-temporal dynamics of Physics knowledge worldwide. By using the knowledge diffusion proxy we identify the key cities in the production and consumption of knowledge in Physics as a function of time. The results from the scientific production ranking algorithm allow us to characterize the top cities for scholarly research in Physics. Although we focus on a single dataset concerning a specific field, the methodology presented here opens the path to comparative studies of the dynamics of knowledge across disciplines and research areas

  18. Synchronous Characterization of Semiconductor Microcavity Laser Beam

    E-Print Network [OSTI]

    Wang, Tao

    2015-01-01

    We report on a high-resolution double-channel imaging method used to synchronously map the intensity- and optical-frequency-distribution of a laser beam in the plane orthogonal to the propagation direction. The synchronous measurement allows us to show that the laser frequency is an inhomogeneous distribution below threshold, but that it becomes homogeneous across the fundamental Gaussian mode above threshold. The beam's tails deviations from the Gaussian shape, however, are accompanied by sizeable fluctuations in the laser wavelength, possibly deriving from manufacturing details and from the influence of spontaneous emission in the very low intensity wings. In addition to the synchronous spatial characterization, a temporal analysis at any given point in the beam cross-section is carried out. Using this method, the beam homogeneity and spatial shape, energy density, energy center and the defects-related spectrum can also be extracted from these high-resolution pictures.

  19. A Corticostriatal Neural System Enhances Auditory Perception through Temporal Context Processing

    E-Print Network [OSTI]

    Geiser, Eveline

    The temporal context of an acoustic signal can greatly influence its perception. The present study investigated the neural correlates underlying perceptual facilitation by regular temporal contexts in humans. Participants ...

  20. Undecidability and temporal logic: some landmarks from Turing to the present

    E-Print Network [OSTI]

    Goranko, Valentin

    . INTRODUCTION Temporal logic was born in the mid 1950s, right after the death of Alan Turing in temporal logic was essentially Alan Turing's celebrated Undecidability of the Halting problem of (what

  1. Classification and volumetric analysis of temporal bone pneumatization using cone beam computed tomography

    E-Print Network [OSTI]

    Terasaki, Mark

    Classification and volumetric analysis of temporal bone pneumatization using cone beam computed Objective. This study performed volumetric analysis and classified different repeated patterns of temporal. Volumetric analysis of the pneumatization was performed using a window thresholding procedure on multiplanar

  2. Landscape Characterization and Representativeness Analysis for Understanding Sampling Network Coverage

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

    Maddalena, Damian; Hoffman, Forrest; Kumar, Jitendra; Hargrove, William

    Sampling networks rarely conform to spatial and temporal ideals, often comprised of network sampling points which are unevenly distributed and located in less than ideal locations due to access constraints, budget limitations, or political conflict. Quantifying the global, regional, and temporal representativeness of these networks by quantifying the coverage of network infrastructure highlights the capabilities and limitations of the data collected, facilitates upscaling and downscaling for modeling purposes, and improves the planning efforts for future infrastructure investment under current conditions and future modeled scenarios. The work presented here utilizes multivariate spatiotemporal clustering analysis and representativeness analysis for quantitative landscape characterization and assessment of the Fluxnet, RAINFOR, and ForestGEO networks. Results include ecoregions that highlight patterns of bioclimatic, topographic, and edaphic variables and quantitative representativeness maps of individual and combined networks.

  3. Landscape Characterization and Representativeness Analysis for Understanding Sampling Network Coverage

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

    Maddalena, Damian; Hoffman, Forrest; Kumar, Jitendra; Hargrove, William

    2014-08-01

    Sampling networks rarely conform to spatial and temporal ideals, often comprised of network sampling points which are unevenly distributed and located in less than ideal locations due to access constraints, budget limitations, or political conflict. Quantifying the global, regional, and temporal representativeness of these networks by quantifying the coverage of network infrastructure highlights the capabilities and limitations of the data collected, facilitates upscaling and downscaling for modeling purposes, and improves the planning efforts for future infrastructure investment under current conditions and future modeled scenarios. The work presented here utilizes multivariate spatiotemporal clustering analysis and representativeness analysis for quantitative landscape characterization and assessment of the Fluxnet, RAINFOR, and ForestGEO networks. Results include ecoregions that highlight patterns of bioclimatic, topographic, and edaphic variables and quantitative representativeness maps of individual and combined networks.

  4. Modeling Temporal Primitives: Back to Basics Iqbal A. Goralwalla, Yuri Leontiev, M. Tamer Ozsu and Duane Szafron

    E-Print Network [OSTI]

    Szafron, Duane

    Modeling Temporal Primitives: Back to Basics Iqbal A. Goralwalla, Yuri Leontiev, M. Tamer ¨Ozsu of the design space of any temporal model since it is comprised of the basic temporal features that un- derlie

  5. Double tracks test site characterization report

    SciTech Connect (OSTI)

    NONE

    1996-05-01

    This report presents the results of site characterization activities performed at the Double Tracks Test Site, located on Range 71 North, of the Nellis Air Force Range (NAFR) in southern Nevada. Site characterization activities included reviewing historical data from the Double Tracks experiment, previous site investigation efforts, and recent site characterization data. The most recent site characterization activities were conducted in support of an interim corrective action to remediate the Double Tracks Test Site to an acceptable risk to human health and the environment. Site characterization was performed using a phased approach. First, previously collected data and historical records sere compiled and reviewed. Generalized scopes of work were then prepared to fill known data gaps. Field activities were conducted and the collected data were then reviewed to determine whether data gaps were filled and whether other areas needed to be investigated. Additional field efforts were then conducted, as required, to adequately characterize the site. Characterization of the Double Tracks Test Site was conducted in accordance with the US Department of Energy`s (DOE) Streamlined Approach for Environmental Restoration (SAFER).

  6. BRICSLS-97-1Chomicki&Toman:TemporalLogicinInformationSystems BRICSBasic Research in Computer Science

    E-Print Network [OSTI]

    Toman, David

    BRICSLS-97-1Chomicki&Toman:TemporalLogicinInformationSystems BRICSBasic Research in Computer Science Temporal Logic in Information Systems Jan Chomicki David Toman BRICS Lecture Series LS-97-1 ISSN/1/ #12;Temporal Logic in Information Systems Jan Chomicki David Toman #12;#12;Jan Chomicki Dept

  7. Author's personal copy Temporal and spatial trends of total petroleum hydrocarbons in the seawater

    E-Print Network [OSTI]

    Ma, Lena

    Author's personal copy Temporal and spatial trends of total petroleum hydrocarbons in the seawater hydrocarbons Bohai Bay Temporal and spatial trends Seawater a b s t r a c t The temporal and spatial distribution of total petroleum hydrocarbons (TPH) in the seawater of Tianjin Bohai Bay during 1996

  8. ECEM/EAML 2004 Segmentation of paleoecological spatio-temporal count data

    E-Print Network [OSTI]

    Toivonen, Hannu

    ECEM/EAML 2004 Segmentation of paleoecological spatio-temporal count data Kari Vasko1 , Hannu will consider applications of segmentation analysis towards analysis of paleoecological spatio-temporal time framework for the spatio-temporal segmentation problems that occurs in paleoecology and discuss

  9. IEEE TRANSACTIONS ON EVOLUTIONARY COMPUTATION, VOL. 13, NO. 1, FEBRUARY 2009 169 Optimization of Temporal Processes

    E-Print Network [OSTI]

    Kusiak, Andrew

    , nonlinear temporal process, optimization. NOMENCLATURE Vector of controllable variables of a process. th of Temporal Processes: A Model Predictive Control Approach Zhe Song and Andrew Kusiak, Member, IEEE Abstract--A dynamic predictive-control model of a nonlinear and temporal process is considered. Evolutionary

  10. Spatial-temporal event detection in climate parameter imagery.

    SciTech Connect (OSTI)

    McKenna, Sean Andrew; Gutierrez, Karen A.

    2011-10-01

    Previously developed techniques that comprise statistical parametric mapping, with applications focused on human brain imaging, are examined and tested here for new applications in anomaly detection within remotely-sensed imagery. Two approaches to analysis are developed: online, regression-based anomaly detection and conditional differences. These approaches are applied to two example spatial-temporal data sets: data simulated with a Gaussian field deformation approach and weekly NDVI images derived from global satellite coverage. Results indicate that anomalies can be identified in spatial temporal data with the regression-based approach. Additionally, la Nina and el Nino climatic conditions are used as different stimuli applied to the earth and this comparison shows that el Nino conditions lead to significant decreases in NDVI in both the Amazon Basin and in Southern India.

  11. Temporal Intermittency of Energy Dissipation in Magnetohydrodynamic Turbulence

    E-Print Network [OSTI]

    Zhdankin, Vladimir; Boldyrev, Stanislav

    2015-01-01

    Energy dissipation in magnetohydrodynamic (MHD) turbulence is known to be highly intermittent in space, being concentrated in sheet-like coherent structures. Much less is known about intermittency in time, another fundamental aspect of turbulence which has great importance for observations of solar flares and other space/astrophysical phenomena. In this Letter, we investigate the temporal intermittency of energy dissipation in numerical simulations of MHD turbulence. We consider four-dimensional spatiotemporal structures, "flare events", responsible for a large fraction of the energy dissipation. We find that although the flare events are often highly complex, they exhibit robust power-law distributions and scaling relations. We find that the probability distribution of dissipated energy has a power law index close to -1.75, similar to observations of solar flares, indicating that intense dissipative events dominate the heating of the system. We also discuss the temporal asymmetry of flare events as a signatu...

  12. The spatio-temporal spectrum of turbulent flows

    E-Print Network [OSTI]

    di Leoni, P Clark; Mininni, P D

    2015-01-01

    Identification and extraction of vortical structures and of waves in a disorganized flow is a mayor challegen in the study of turbulence. We present a study of the spatio-temporal behavior of turbulent flows in the presence of different restitutive forces. We show how to compute and analyze the spatio-temporal spectrum from data stemming from numerical simulations and from laboratory experiments. Four cases are considered: homogeneous and isotropic turbulence, rotating turbulence, stratified turbulence, and water wave turbulence. For homogeneous and isotropic turbulence, the spectrum allows identification of random sweeping. For rotating and for stratified turbulence, the spectrum allows identification of the waves, quantification of the energy in the waves and in the turbulent eddies, and identification of physical mechanisms such as Doppler shift and wave absorption in critical layers. Finally, in water wave turbulence the spectrum shows a transition from gravity-capillary waves to bound waves as the amplit...

  13. ORISE: Characterization surveys

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

    objective characterization surveys to define the extent of radiological contamination at sites scheduled for decontamination and decommissioning (D&D). A fundamental...

  14. Renewable energy technology characterizations

    SciTech Connect (OSTI)

    None, None

    1997-12-01

    The Renewable Energy Technology Characterizations describe the technical and economic status of the major emerging renewable energy options for electricity supply.

  15. Characterization of Contour Shapes Achievable with a MEMS Deformable Mirror

    E-Print Network [OSTI]

    Bifano, Thomas

    Characterization of Contour Shapes Achievable with a MEMS Deformable Mirror Yaopeng Zhou and Thomas for a particular AO application can be determined. In this paper, we characterize one MEMS DM that was recently electrostatic actuation in an architecture that has been described previously. We incorporated the MEMS mirror

  16. Tensor analysis methods for activity characterization in spatiotemporal data

    SciTech Connect (OSTI)

    Haass, Michael Joseph; Van Benthem, Mark Hilary; Ochoa, Edward M.

    2014-03-01

    Tensor (multiway array) factorization and decomposition offers unique advantages for activity characterization in spatio-temporal datasets because these methods are compatible with sparse matrices and maintain multiway structure that is otherwise lost in collapsing for regular matrix factorization. This report describes our research as part of the PANTHER LDRD Grand Challenge to develop a foundational basis of mathematical techniques and visualizations that enable unsophisticated users (e.g. users who are not steeped in the mathematical details of matrix algebra and mulitway computations) to discover hidden patterns in large spatiotemporal data sets.

  17. Single-shot 35 fs temporal resolution electron shadowgraphy

    SciTech Connect (OSTI)

    Scoby, C. M.; Li, R. K.; Threlkeld, E.; To, H.; Musumeci, P. [Department of Physics and Astronomy, UCLA, Los Angeles, California 90095 (United States)] [Department of Physics and Astronomy, UCLA, Los Angeles, California 90095 (United States)

    2013-01-14

    We obtain single-shot time-resolved shadowgraph images of the electromagnetic fields resulting from the interaction of a high intensity ultrashort laser pulse with a metal surface. Using a high brightness relativistic electron beam and a high streaking speed radiofrequency deflector, we report <35 fs temporal resolution enabling a direct visualization of the retarded-time dominated field evolution which follows the laser-induced charge emission. A model including the finite signal propagation speed well reproduces the data and yields measurements of fundamental parameters in short pulse laser-matter interaction such as the amount of emitted charge and the emission time scale.

  18. Three-Dimensional Characterization of

    E-Print Network [OSTI]

    Rohrer, Gregory S.

    Three-Dimensional Characterization of Microstructure by Electron Back-Scatter Diffraction Anthony D scanning, statistical reconstruction, microscopy, texture, EBSD Abstract The characterization;MOTIVATION We review briefly the motivation for the characterization of materials in three dimen- sions. Most

  19. RECOMMENDED GUIDELINES FOR WASTEWATER CHARACTERIZATION

    E-Print Network [OSTI]

    #12;RECOMMENDED GUIDELINES FOR WASTEWATER CHARACTERIZATION IN THE FRASER RIVER BASIN VOLUME II Ont. June 1993 Amended April 1994 #12;GUIDELINES FOR WASTEWATER CHARACTERIZATION PREFACE Ltd., Calgary, Alberta. #12;GUIDELINES FOR WASTEWATER CHARACTERIZATION EXECUTIVE SUMMARY The Fraser

  20. Electromagnetics in characterizations

    E-Print Network [OSTI]

    Wu, Bae-Ian, 1975-

    2003-01-01

    (cont.) Characterization of the differential guided mode of a coupled-strip transmission line allows us to understand its behaviors in high frequency circuit applications. S-parameters of the differential mode of a ...

  1. A Query Calculus for Spatio-Temporal Object Databases Tony Griffiths, Alvaro A. A. Fernandes, Nassima Djafri, Norman W. Paton

    E-Print Network [OSTI]

    Paton, Norman

    the development of a com- plete spatio-temporal DBMS. This has given rise to a sub- stantial collection of results and aspatial data. ODMG Model Temporal Types Spatial Types Histories Spatio-Temporal Algebra Spatio using histories. A history is a set of timestamp-value pairs, where the timestamp is of a temporal type

  2. A Query Calculus for SpatioTemporal Object Databases Tony Griffiths, Alvaro A. A. Fernandes, Nassima Djafri, Norman W. Paton

    E-Print Network [OSTI]

    Fernandes, Alvaro A. A.

    the development of a com­ plete spatio­temporal DBMS. This has given rise to a sub­ stantial collection of results and aspatial data. ODMG Model Temporal Types Spatial Types Histories Spatio-Temporal Algebra Spatio using histories. A history is a set of timestamp­value pairs, where the timestamp is of a temporal type

  3. Optical Characterization of Plasmonic Metamaterials

    E-Print Network [OSTI]

    Cho, David Jaeyun

    2012-01-01

    V. Shalaev, Optical Metamaterials (Springer, 2010). L. D.Characterization of Plasmonic Metamaterials by David JaeyunCharacterization of Plasmonic Metamaterials Copyright 2012

  4. The POLARBEAR Experiment: Design and Characterization

    E-Print Network [OSTI]

    Kermish, Zigmund David

    2012-01-01

    Beam characterization infocal plane characterization . . . . . . . . . . .5.2.13 Pre-Cedar Flat Receiver Characterization 3.1 Fractional

  5. Spatial structure and temporal evolution of energetic particle injections in the inner magnetosphere during the 14 July 2013 substorm event

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

    Gkioulidou, Matina; Ohtani, S.; Mitchell, D. G.; Ukhorskiy, A. Y.; Reeves, G. D.; Turner, D. L.; Gjerloev, J. W.; Nosé, M.; Koga, K.; Rodriguez, J. V.; et al

    2015-03-20

    Recent results by the Van Allen Probes mission showed that the occurrence of energetic ion injections inside geosynchronous orbit could be very frequent throughout the main phase of a geomagnetic storm. Understanding, therefore, the formation and evolution of energetic particle injections is critical in order to quantify their effect in the inner magnetosphere. We present a case study of a substorm event that occurred during a weak storm (Dst ~ –40 nT) on 14 July 2013. Van Allen Probe B, inside geosynchronous orbit, observed two energetic proton injections within 10 min, with different dipolarization signatures and duration. The first onemore »is a dispersionless, short-timescale injection pulse accompanied by a sharp dipolarization signature, while the second one is a dispersed, longer-timescale injection pulse accompanied by a gradual dipolarization signature. We combined ground magnetometer data from various stations and in situ particle and magnetic field data from multiple satellites in the inner magnetosphere and near-Earth plasma sheet to determine the spatial extent of these injections, their temporal evolution, and their effects in the inner magnetosphere. Our results indicate that there are different spatial and temporal scales at which injections can occur in the inner magnetosphere and depict the necessity of multipoint observations of both particle and magnetic field data in order to determine these scales.« less

  6. Characterization of DWPF recycle condensate materials

    SciTech Connect (OSTI)

    Bannochie, C. J.; Adamson, D. J.; King, W. D.

    2015-04-01

    A Defense Waste Processing Facility (DWPF) Recycle Condensate Tank (RCT) sample was delivered to the Savannah River National Laboratory (SRNL) for characterization with particular interest in the concentration of I-129, U-233, U-235, total U, and total Pu. Since a portion of Salt Batch 8 will contain DWPF recycle materials, the concentration of I-129 is important to understand for salt batch planning purposes. The chemical and physical characterizations are also needed as input to the interpretation of future work aimed at determining the propensity of the RCT material to foam, and methods to remediate any foaming potential. According to DWPF the Tank Farm 2H evaporator has experienced foaming while processing DWPF recycle materials. The characterization work on the RCT samples has been completed and is reported here.

  7. BNFL Report Glass Formers Characterization

    SciTech Connect (OSTI)

    Schumacher, R.F.

    2000-07-27

    The objective of this task was to obtain powder property data on candidate glass former materials, sufficient to guide conceptual design and estimate the cost of glass former handling facilities as requested under Part B1 of BNFL Technical and Development Support. Twenty-nine glass forming materials were selected and obtained from vendors for the characterization of their physical properties, durability in caustic solution, and powder flow characteristics. A glass former was selected based on the characterization for each of the ten oxide classes required for Envelope A, B, and C mixtures. Three blends (A, B, and C) were prepared based on formulations provided by Vitreous State Laboratory and evaluated with the same methods employed for the glass formers. The properties obtained are presented in a series of attached Tables. It was determined that five of the ten glass formers, (kyanite, iron oxide, titania, zircon, and zinc oxide) have the potential to cause some level of solids f low problems. The problems might include arching or ratholing in the silo/hopper. In addition, all of the blends may require consideration for their handling.

  8. BNFL Report Glass Formers Characterization

    SciTech Connect (OSTI)

    Schumacher, R.F.

    2000-07-27

    The objective of this task was to obtain powder property data on candidate glass former materials, sufficient to guide conceptual design and estimate the cost of glass former handling facilities as requested under Part B1 of BNFL Technical and Development Support. Twenty-nine glass forming materials were selected and obtained from vendors for the characterization of their physical properties, durability in caustic solution, and powder flow characteristics. A glass former was selected based on the characterization for each of the ten oxide classes required for Envelope A, B, and C mixtures. Three blends (A, B, and C) were prepared based on formulations provided by Vitreous State Laboratory and evaluated with the same methods employed for the glass formers. The properties obtained are presented in a series of attached Tables. It was determined that five of the ten glass formers, (kyanite, iron oxide, titania, zircon, and zinc oxide) have the potential to cause some level of solids f low problems. In addition, all of the blends may require consideration for their handling. A number of engineering considerations and recommendations were prepared based on the experimental findings, experience, and other process considerations. Recommendations for future testing are included. In conjunction with future work, it is recommended that a professional consultant be engaged to guide and assist with testing and design input.

  9. Quantitative Characterization of Nanostructured Materials

    SciTech Connect (OSTI)

    Dr. Frank Bridges, University of California-Santa Cruz

    2010-08-05

    The two-and-a-half day symposium on the "Quantitative Characterization of Nanostructured Materials" will be the first comprehensive meeting on this topic held under the auspices of a major U.S. professional society. Spring MRS Meetings provide a natural venue for this symposium as they attract a broad audience of researchers that represents a cross-section of the state-of-the-art regarding synthesis, structure-property relations, and applications of nanostructured materials. Close interactions among the experts in local structure measurements and materials researchers will help both to identify measurement needs pertinent to â??real-worldâ? materials problems and to familiarize the materials research community with the state-of-the-art local structure measurement techniques. We have chosen invited speakers that reflect the multidisciplinary and international nature of this topic and the need to continually nurture productive interfaces among university, government and industrial laboratories. The intent of the symposium is to provide an interdisciplinary forum for discussion and exchange of ideas on the recent progress in quantitative characterization of structural order in nanomaterials using different experimental techniques and theory. The symposium is expected to facilitate discussions on optimal approaches for determining atomic structure at the nanoscale using combined inputs from multiple measurement techniques.

  10. Interferometric at-wavelength flare characterization of EUV optical systems

    DOE Patents [OSTI]

    Naulleau, Patrick P. (Oakland, CA); Goldberg, Kenneth Alan (Berkeley, CA)

    2001-01-01

    The extreme ultraviolet (EUV) phase-shifting point diffraction interferometer (PS/PDI) provides the high-accuracy wavefront characterization critical to the development of EUV lithography systems. Enhancing the implementation of the PS/PDI can significantly extend its spatial-frequency measurement bandwidth. The enhanced PS/PDI is capable of simultaneously characterizing both wavefront and flare. The enhanced technique employs a hybrid spatial/temporal-domain point diffraction interferometer (referred to as the dual-domain PS/PDI) that is capable of suppressing the scattered-reference-light noise that hinders the conventional PS/PDI. Using the dual-domain technique in combination with a flare-measurement-optimized mask and an iterative calculation process for removing flare contribution caused by higher order grating diffraction terms, the enhanced PS/PDI can be used to simultaneously measure both figure and flare in optical systems.

  11. Spectro-temporal shaping of seeded free-electron laser pulses

    E-Print Network [OSTI]

    Gauthier, David; De Ninno, Giovanni; Allaria, Enrico; Cinquegrana, Paolo; Danailov, Miltcho Boyanov; Demidovich, Alexander; Ferrari, Eugenio; Giannessi, Luca; Mahieu, Benoît; Penco, Giuseppe

    2015-01-01

    We demonstrate the ability to control and shape the spectro-temporal content of extreme-ultraviolet (XUV) pulses produced by a seeded free-electron laser (FEL). The control over the spectro-temporal properties of XUV light was achieved by precisely manipulating the linear frequency chirp of the seed laser. Our results agree with existing theory, which allows retrieving the temporal properties (amplitude and phase) of the FEL pulse from measurements of the spectra as a function of the FEL operating parameters. Furthermore, we show the first direct evidence of the full temporal coherence of FEL light and generate Fourier limited pulses by fine-tuning the FEL temporal phase. The possibility to tailor the spectro-temporal content of intense short-wavelength pulses represents the first step towards efficient nonlinear optics in the XUV to X-ray spectral region and will enable precise manipulation of core-electron excitations using the methods of coherent quantum control.

  12. Apparatus for characterizing conductivity of superconducting materials

    DOE Patents [OSTI]

    Doss, J.D.

    1993-12-07

    Apparatus and method for noncontact, radio-frequency shielding current characterization of materials. Self- or mutual inductance changes in one or more inductive elements, respectively, occur when materials capable of supporting shielding currents are placed in proximity thereto, or undergo change in resistivity while in place. Such changes can be observed by incorporating the inductor(s) in a resonant circuit and determining the frequency of oscillation or by measuring the voltage induced on a coupled inductive element. The present invention is useful for determining the critical temperature and superconducting transition width for superconducting samples. 10 figures.

  13. Apparatus for characterizing conductivity of superconducting materials

    DOE Patents [OSTI]

    Doss, James D. (Los Alamos, NM)

    1993-01-01

    Apparatus and method for noncontact, radio-frequency shielding current characterization of materials. Self- or mutual inductance changes in one or more inductive elements, respectively, occur when materials capable of supporting shielding currents are placed in proximity thereto, or undergo change in resistivity while in place. Such changes can be observed by incorporating the inductor(s) in a resonant circuit and determining the frequency of oscillation or by measuring the voltage induced on a coupled inductive element. The present invention is useful for determining the critical temperature and superconducting transition width for superconducting samples.

  14. THERMOGRAVIMETRIC CHARACTERIZATION OF GLOVEBOX GLOVES

    SciTech Connect (OSTI)

    Korinko, P.

    2012-02-29

    An experimental project was initiated to characterize mass loss when heating different polymer glovebox glove material samples to three elevated temperatures, 90, 120, and 150 C. Samples from ten different polymeric gloves that are being considered for use in the tritium gloveboxes were tested. The intent of the study was to determine the amount of material lost. These data will be used in a subsequent study to characterize the composition of the material lost. One goal of the study was to determine which glove composition would least affect the glovebox atmosphere stripper system. Samples lost most of the mass in the initial 60 minutes of thermal exposure and as expected increasing the temperature increased the mass loss and shortened the time to achieve a steady state loss. The most mass loss was experienced by Jung butyl-Hypalon{reg_sign} at 146 C with 12.9% mass loss followed by Piercan Hypalon{reg_sign} at 144 C with 11.4 % mass loss and Jung butyl-Viton{reg_sign} at 140 C with 5.2% mass loss. The least mass loss was experienced by the Jung Viton{reg_sign} and the Piercan polyurethane. Unlike the permeation testing (1) the vendor and fabrication route influences the amount of gaseous species that is evolved. Additional testing to characterize these products is recommended. Savannah River Site (SRS) has many gloveboxes deployed in the Tritium Facility. These gloveboxes are used to protect the workers and to ensure a suitable environment in which to handle tritium gas products. The gas atmosphere in the gloveboxes is purified using a stripper system. The process gas strippers collect molecules that may have hydrogen or its isotopes attached, e.g., waters of hydration, acids, etc. Recently, sulfur containing compounds were detected in the stripper system and the presence of these compounds accelerates the stripper system's aging process. This accelerated aging requires the strippers to be replaced more often which can impact the facility's schedule and operational cost. It was posited that sulfur bearing and other volatile compounds were derived from glove off-gassing. Due to the large number of gloves in the facility, small mass loss from each glove could result in a significant total mass of undesirable material entering the glovebox atmosphere and subsequently the stripper system. A thermogravimetric analysis (TGA) study was conducted to determine the amount of low temperature volatiles that may be expected to offgas from the gloves. The data were taken on relatively small samples but are normalized with respect to the sample's surface area. Additional testing is needed to determine the composition of the off-gassing species. The TGA study was conducted to ascertain the magnitude of the issue and to determine if further experimentation is warranted or necessary.

  15. Three-dimensional hippocampal atrophy maps distinguish two common temporal lobe

    E-Print Network [OSTI]

    Thompson, Paul

    Three-dimensional hippocampal atrophy maps distinguish two common temporal lobe seizure ictal onset patterns (Engel, 1990). Hyper- synchronous (HYP) onsets consist of long-lasting (>5-s

  16. The Importance of High Temporal Resolution in Modeling Renewable Energy Penetration Scenarios

    E-Print Network [OSTI]

    Nicolosi, Marco

    2011-01-01

    P. E. (2008): Wind Power in the Danish liberalized powereconomics of large-scale wind power in a carbon constraineddifferences. Keywords: Wind power integration, temporal-

  17. Two-dimensional spatio-temporal signal processing for dispersion compensation in time-stretched ADC

    E-Print Network [OSTI]

    Tarighat, Alireza; Gupta, Shalabh; Sayed, Ali H.; Jalali, Bahrain

    2007-01-01

    SPATIO-TEMPORAL SIGNAL PROCESSING [4] P. W. Juodawlkis, J.are in communication theory and signal processing, includingon Acoustics, Speech, and Signal Processing, 2008. Bahram

  18. Improving microbial fitness in the mammalian gut by in vivo temporal functional metagenomics

    E-Print Network [OSTI]

    Yaung, Stephanie J.

    Elucidating functions of commensal microbial genes in the mammalian gut is challenging because many commensals are recalcitrant to laboratory cultivation and genetic manipulation. We present Temporal FUnctional Metagenomics ...

  19. Baseline Graphite Characterization: First Billet

    SciTech Connect (OSTI)

    Mark C. Carroll; Joe Lords; David Rohrbaugh

    2010-09-01

    The Next Generation Nuclear Plant Project Graphite Research and Development program is currently establishing the safe operating envelope of graphite core components for a very high temperature reactor design. To meet this goal, the program is generating the extensive amount of quantitative data necessary for predicting the behavior and operating performance of the available nuclear graphite grades. In order determine the in-service behavior of the graphite for the latest proposed designs, two main programs are underway. The first, the Advanced Graphite Creep (AGC) program, is a set of experiments that are designed to evaluate the irradiated properties and behavior of nuclear grade graphite over a large spectrum of temperatures, neutron fluences, and compressive loads. Despite the aggressive experimental matrix that comprises the set of AGC test runs, a limited amount of data can be generated based upon the availability of space within the Advanced Test Reactor and the geometric constraints placed on the AGC specimens that will be inserted. In order to supplement the AGC data set, the Baseline Graphite Characterization program will endeavor to provide supplemental data that will characterize the inherent property variability in nuclear-grade graphite without the testing constraints of the AGC program. This variability in properties is a natural artifact of graphite due to the geologic raw materials that are utilized in its production. This variability will be quantified not only within a single billet of as-produced graphite, but also from billets within a single lot, billets from different lots of the same grade, and across different billets of the numerous grades of nuclear graphite that are presently available. The thorough understanding of this variability will provide added detail to the irradiated property data, and provide a more thorough understanding of the behavior of graphite that will be used in reactor design and licensing. This report covers the development of the Baseline Graphite Characterization program from a testing and data collection standpoint through the completion of characterization on the first billet of nuclear-grade graphite. This data set is the starting point for all future evaluations and comparisons of material properties.

  20. WRAP Module 1 waste characterization plan

    SciTech Connect (OSTI)

    Mayancsik, B.A.

    1995-01-23

    The purpose of this document is to present the characterization methodology for waste generated, processed, or otherwise the responsibility of the Waste Receiving and Processing (WRAP) Module 1 facility. The scope of this document includes all solid low level waste (LLW), transuranic (TRU), mixed waste (MW), and dangerous waste. This document is not meant to be all-inclusive of the waste processed or generated within WRAP Module 1, but to present a methodology for characterization. As other streams are identified, the method of characterization will be consistent with the other streams identified in this plan. The WRAP Module 1 facility is located in the 200 West Area of the Hanford Site. The facility`s function is two-fold. The first is to verify/characterize, treat and repackage contact handled (CH) waste currently in retrievable storage in the LLW Burial Grounds, Hanford Central Waste Complex, and the Transuranic Storage and Assay Facility (TRUSAF). The second is to verify newly generated CH TRU waste and LLW, including MW. The WRAP Module 1 facility provides NDE and NDA of the waste for both drums and boxes. The NDE is used to identify the physical contents of the waste containers to support waste characterization and processing, verification, or certification. The NDA results determine the radioactive content and distribution of the waste.

  1. Tank characterization reference guide

    SciTech Connect (OSTI)

    De Lorenzo, D.S.; DiCenso, A.T.; Hiller, D.B.; Johnson, K.W.; Rutherford, J.H.; Smith, D.J. [Los Alamos Technical Associates, Kennewick, WA (United States); Simpson, B.C. [Westinghouse Hanford Co., Richland, WA (United States)

    1994-09-01

    Characterization of the Hanford Site high-level waste storage tanks supports safety issue resolution; operations and maintenance requirements; and retrieval, pretreatment, vitrification, and disposal technology development. Technical, historical, and programmatic information about the waste tanks is often scattered among many sources, if it is documented at all. This Tank Characterization Reference Guide, therefore, serves as a common location for much of the generic tank information that is otherwise contained in many documents. The report is intended to be an introduction to the issues and history surrounding the generation, storage, and management of the liquid process wastes, and a presentation of the sampling, analysis, and modeling activities that support the current waste characterization. This report should provide a basis upon which those unfamiliar with the Hanford Site tank farms can start their research.

  2. Apparatus for characterizing the temporo-spatial properties of a dynamic fluid front and method thereof

    DOE Patents [OSTI]

    Battiste, Richard L. (Oak Ridge, TN)

    2007-12-25

    Methods and apparatus are described for characterizing the temporal-spatial properties of a dynamic fluid front within a mold space while the mold space is being filled with fluid. A method includes providing a mold defining a mold space and having one or more openings into the mold space; heating a plurality of temperature sensors that extend into the mold space; injecting a fluid into the mold space through the openings, the fluid experiencing a dynamic fluid front while filling the mold space with the fluid; and characterizing temporal-spatial properties of the dynamic fluid front by monitoring a temperature of each of the plurality of heated temperature sensors while the mold space is being filled with the fluid. An apparatus includes a mold defining a mold space; one or more openings for introducing a fluid into the mold space and filling the mold space with the fluid, the fluid experiencing a dynamic fluid front while filling the mold space; a plurality of heated temperature sensors extending into the mold space; and a computer coupled to the plurality of heated temperature sensors for characterizing the temporal-spatial properties of the dynamic fluid front.

  3. Apparatus for characterizing the temporo-spatial properties of a dynamic fluid front and method thereof

    DOE Patents [OSTI]

    Battiste, Richard L

    2013-12-31

    Methods and apparatus are described for characterizing the temporal-spatial properties of a dynamic fluid front within a mold space while the mold space is being filled with fluid. A method includes providing a mold defining a mold space and having one or more openings into the mold space; heating a plurality of temperature sensors that extend into the mold space; injecting a fluid into th emold space through the openings, the fluid experiencing a dynamic fluid front while filling the mold space with a fluid; and characterizing temporal-spatial properties of the dynamic fluid front by monitoring a termperature of each of the plurality of heated temperature sensors while the mold space is being filled with the fluid. An apparatus includes a mold defining a mold space; one or more openings for introducing a fluid into th emold space and filling the mold space with the fluid, the fluid experiencing a dynamic fluid front while filling the mold space; a plurality of heated temperature sensors extending into the mold space; and a computer coupled to the plurality of heated temperature sensors for characterizing the temporal-spatial properties of the dynamic fluid front.

  4. Spatio-temporal characteristics of Trichel pulse at low pressure

    SciTech Connect (OSTI)

    He, Shoujie, E-mail: hedajingdian@126.com [College of Physics Science and Technology, Hebei University, Baoding (China)] [College of Physics Science and Technology, Hebei University, Baoding (China); Jing, Ha [Institute of Science, Hebei Agriculture University, Baoding (China)] [Institute of Science, Hebei Agriculture University, Baoding (China)

    2014-01-15

    Trichel pulses are investigated using a needle-to-plane electrode geometry at low pressure. The evolution of current and voltage, the spatio-temporal discharge images of Trichel pulse are measured. The rising time and duration time in a pulse are about 10??s and several tens of microseconds, respectively. One period of pulse can be divided into three stages: the stage preceding cathode breakdown, cathode glow formation, and discharge decaying process. Besides a cathode glow and a dark space, an anode glow is also observed. The emission spectra mainly originate from the C{sup 3}?{sub u} ? B{sup 3}?{sub g} transition for nitrogen. In addition, the capacitances in parallel connected with the discharge cell have important influence on the pulsing frequency.

  5. Hydrogeologic characterization of Illinois wetlands

    SciTech Connect (OSTI)

    Miner, J.J.; Miller, M.V.; Rorick, N.L.; Fucciolo, C.S. (Illinois State Geological Survey, Champaign, IL (United States))

    1994-04-01

    The Illinois State Geological Survey (ISGS), under contract from the Illinois Department of Transportation (IDOT), is evaluating a series of selected wetlands and sites proposed for wetland construction and/or restoration. The program is associated with wetland mitigation for unavoidable effects of state highway construction. The goal of this ongoing program is: (1) to collect commonly lacking geologic, geomorphic, hydrologic, and geochemical data from various wetland sites; and (2) to create a database of this information for use by government agencies and the private sector. Some of the potential uses of this database include: (1) determination of history, role, and possible life cycle of various wetland types allowing more effective design criteria; (2) functional comparison of constructed or restored wetlands versus natural wetlands; (3) testing of wetland hypotheses and delineation techniques under a variety of known hydrogeologic conditions in Illinois; (4) hydrogeologic assessment of potential mitigation sites against a suite of known sites; and (5) determination of data and collection methods appropriate for hydrogeologic wetland studies. A series of tasks is required to complete each study. Historical information is collected from ISGS records, including data regarding topography, soils, sediments, bedrock, and local well records. A field-testing plan is prepared, which includes goals of the study, methods, research potential, and potential results. An initial report is prepared after geologic and geochemical characterization and the installation of needed ground water monitoring wells and surface water gauges. After one year of water-level monitoring, a final report is prepared regarding the present conditions of a site. Further monitoring may be required to determine the performance at constructed and/or restored sites.

  6. Applying reservoir characterization technology

    SciTech Connect (OSTI)

    Lake, L.W.

    1994-12-31

    While reservoir characterization is an old discipline, only within the last 10 years have engineers and scientists been able to make quantitative descriptions, due mostly to improvements in high-resolution computational power, sophisticated graphics, and geostatistics. This paper summarizes what has been learned during the past decade by using these technologies.

  7. WebWorkload Characterization

    E-Print Network [OSTI]

    Zilles, Craig

    WebWorkload Characterization at a Micro­architectural Level Ramesh Radhakrishnan, Lizy John Laboratory, IBM Austin, TX. #12; Goals of this study n We study the behavior of modernWeb server applications programs to understand how they interact with the underlyingWeb server, hardware and OS under realistic

  8. Temperature determination using pyrometry

    DOE Patents [OSTI]

    Breiland, William G. (Albuquerque, NM); Gurary, Alexander I. (Bridgewater, NJ); Boguslavskiy, Vadim (Princeton, NJ)

    2002-01-01

    A method for determining the temperature of a surface upon which a coating is grown using optical pyrometry by correcting Kirchhoff's law for errors in the emissivity or reflectance measurements associated with the growth of the coating and subsequent changes in the surface thermal emission and heat transfer characteristics. By a calibration process that can be carried out in situ in the chamber where the coating process occurs, an error calibration parameter can be determined that allows more precise determination of the temperature of the surface using optical pyrometry systems. The calibration process needs only to be carried out when the physical characteristics of the coating chamber change.

  9. Estimating mutation parameters, population history and genealogy simultaneously from temporally spaced

    E-Print Network [OSTI]

    Nicholls, Geoff

    Estimating mutation parameters, population history and genealogy simultaneously from temporally and population size that incorporates the uncertainty in the genealogy of such temporally spaced sequences features of this approach on a genealogy of HIV-1 envelope (env) partial sequences. #12;1 Introduction One

  10. Long-range temporal correlations of ocean surface currents Yosef Ashkenazy1

    E-Print Network [OSTI]

    Ashkenazy, Yossi "Yosef"

    Long-range temporal correlations of ocean surface currents Yosef Ashkenazy1 and Hezi Gildor2 of ocean surface currents, J. Geophys. Res., 114, C09009, doi:10.1029/2008JC005235. 1. Introduction [2 study the temporal correlations of sea surface currents at the Gulf of Eilat (also known as Gulf

  11. Temporal Evolution of Free Magnetic Energy Associated with Four X-class Flares

    E-Print Network [OSTI]

    energy for much of the solar activity such as flares and coronal mass ejections (CMEs)(see, for review magnetic configuration for conversion into kinetic and/or thermal energy) and its temporal variationTemporal Evolution of Free Magnetic Energy Associated with Four X-class Flares Ju Jing1 , P. F

  12. Experimental quiescent drifting dusty plasmas and temporal dust acoustic wave growth

    E-Print Network [OSTI]

    Merlino, Robert L.

    Experimental quiescent drifting dusty plasmas and temporal dust acoustic wave growth J. R. Heinrich quiescent drifting dusty plasmas and temporal dust acoustic wave growth J. R. Heinrich, S.-H. Kim, J. K report on dust acoustic wave growth rate measurements taken in a dc (anode glow) discharge plasma device

  13. Fast Gradient-Descent Methods for Temporal-Difference Learning with Linear Function Approximation

    E-Print Network [OSTI]

    Szepesvari, Csaba

    Fast Gradient-Descent Methods for Temporal-Difference Learning with Linear Function Approximation with both linear function ap- proximation and off-policy training, and whose complexity scales only linearly requirements. 1. Motivation Temporal-difference methods based on gradient descent and linear function

  14. Challenges for Temporal Planning with Uncertain Durations Mausam and Daniel S. Weld

    E-Print Network [OSTI]

    Challenges for Temporal Planning with Uncertain Durations Mausam and Daniel S. Weld Dept of Computer Science and Engineering University of Washington Seattle, WA-98195 {mausam,weld temporal model is used in TGP (Smith & Weld 1999). TGP-style actions require preconditions to be true

  15. Autologistic Regression Analysis of Spatial-Temporal Binary Data via Monte Carlo

    E-Print Network [OSTI]

    Aukema, Brian

    Autologistic Regression Analysis of Spatial-Temporal Binary Data via Monte Carlo Maximum Likelihood regression analysis of binary data that are measured on a spatial lattice and repeatedly over discrete time points. We propose a spatial- temporal autologistic regression model and draw statistical inference via

  16. Spatial and Temporal Distribution of the Vibrionaceae in Coastal Waters of Hawaii, Australia, and France

    E-Print Network [OSTI]

    Ruby, Edward G.

    Microbial Ecology Spatial and Temporal Distribution of the Vibrionaceae in Coastal Waters of Hawaii and temporal distribution of the Vibrionaceae with respect to V. fischeri and V. logei in Hawaii, southeastern (temperature) and biotic (host distribution) factors both influence popula- tion dynamics. In Hawaii, three

  17. Reconstruction of Missing Data in Social Networks Based on Temporal Patterns of Interactions

    E-Print Network [OSTI]

    Bertozzi, Andrea L.

    Reconstruction of Missing Data in Social Networks Based on Temporal Patterns of Interactions Alexey events in the future. Such event #12;Reconstruction of Missing Data Based on Temporal Patterns 2 the missing data about the participants based on the behavioral model. t t t Figure 2. Graphical

  18. Reconstruction of Missing Data in Social Networks Based on Temporal Patterns of Interactions

    E-Print Network [OSTI]

    Soatto, Stefano

    Reconstruction of Missing Data in Social Networks Based on Temporal Patterns of Interactions Alexey events in the future. Such event #12;Reconstruction of Missing Data Based on Temporal Patterns 2 Angeles E-mail: alexey@math.ucla.edu, mbshort@math.ucla.edu, bertozzi@math.ucla.edu Abstract. We discuss

  19. Radiation dose reduction in computed tomography perfusion using spatial-temporal Bayesian methods

    E-Print Network [OSTI]

    Chen, Tsuhan

    in mean-square-error (MSE) of 40% at low dose radiation of 43mA. Keywords: spatial-temporal, BayesianRadiation dose reduction in computed tomography perfusion using spatial-temporal Bayesian methods-ray radiation dose is of significant concern to patients and operators, especially CT perfusion (CTP) imaging

  20. EXEMPLAR-BASED UNIT SELECTION FOR VOICE CONVERSION UTILIZING TEMPORAL INFORMATION

    E-Print Network [OSTI]

    Virtanen, Tuomas

    EXEMPLAR-BASED UNIT SELECTION FOR VOICE CONVERSION UTILIZING TEMPORAL INFORMATION Zhizheng Wu1 methods. Index Terms-- Voice conversion, unit selection, multi-frame exemplar, temporal information 1 shown to play an important role in perception, most of the voice conversion ap- proaches assume

  1. Passive spatial and temporal integration of excitatory synaptic inputs in cerebellar Purkinje cells of young rats

    E-Print Network [OSTI]

    Passive spatial and temporal integration of excitatory synaptic inputs in cerebellar Purkinje cells linearly independent of the spatial and temporal separation of inputs. Summation of inputs in a passive. Keywords: Dendritic integration; Parallel fiber; Excitation; Timing; Synchrony; Rat Based on a passive

  2. Temporal Relations in Geographic Information Systems: A Workshop at the University of Maine,

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    Temporal Relations in Geographic Information Systems: A Workshop at the University of Maine, Orono and Analysis Report 91-4 #12;Abstract A workshop on temporal relations in Geographic Information Systems (GIS of Surveying Engineering University of Maine Orono, ME 04469 National Center for Geographic Information

  3. Spatial-temporal mesoscale modelling of rainfall intensity using gage and radar data

    E-Print Network [OSTI]

    Reich, Brian J.

    values. We use spatial logistic regression to model the probability of rain for both sources of data modelling, spatial logistic regression, spatial temporal models. 1 #12;and allows the temporal evolution detailed spatial structure of rain fields is costly and their maintenance is time-consuming. Remote sensing

  4. Using the Context-enhanced Additive Heuristic for Temporal and Numeric Planning

    E-Print Network [OSTI]

    Vetter, Thomas

    , the main dif- ference lies in the heuristic: Sapa utilizes a temporal version of planning graphs firstUsing the Context-enhanced Additive Heuristic for Temporal and Numeric Planning Patrick Eyerich,mattmuel,roeger}@informatik.uni-freiburg.de Abstract Planning systems for real-world applications need the abil- ity to handle concurrency and numeric

  5. Spatio-TemporalDatabases in Practice: Directly Supporting Previously Developed Data using Tripod

    E-Print Network [OSTI]

    Paton, Norman

    University of Staffordshire UK 1 Introduction This demo presents a complete spatio-temporal object DBMS of fusion, fission or reallocation that must be catered for in tracking the life histories of individual The Tripod System The demo focuses on the benefits arising from use of a spatio-temporal DBMS on an important

  6. Managing Schema Evolution using a Temporal Object Model Iqbal A. Goralwalla, Duane Szafron, M. Tamer Ozsu

    E-Print Network [OSTI]

    Szafron, Duane

    of schema evolution and temporal support for many object database management systems applications can be used to investigate advanced database features such as schema evolution. GivenManaging Schema Evolution using a Temporal Object Model Iqbal A. Goralwalla, Duane Szafron, M

  7. The Temporal Dimension of Dynamic Function Allocation Michael Hildebrandt and Michael Harrison

    E-Print Network [OSTI]

    Harrison, Michael

    1 The Temporal Dimension of Dynamic Function Allocation Michael Hildebrandt and Michael Harrison.Harrison}@cs.york.ac.uk Abstract Current Dynamic Function Allocation methods are designed to switch adaptively between levels a temporal perspective on function allocation by discussing how functions can be scheduled on a joint human

  8. Greening Effect of Spatio-Temporal Power Sharing Policies in Cellular Networks with Energy Constraints

    E-Print Network [OSTI]

    Yi, Yung

    1 Greening Effect of Spatio-Temporal Power Sharing Policies in Cellular Networks with Energy greening, from which we first develop four IM schemes governed by different power sharing: no sharing, only the spatial and/or temporal power sharing policies, (ii) tighter greening regulation (i.e., smaller total

  9. Impact of Spatio-Temporal Power Sharing Policies on Cellular Network Greening

    E-Print Network [OSTI]

    Yi, Yung

    Impact of Spatio-Temporal Power Sharing Policies on Cellular Network Greening Jeongho Kwak, Kyuho in IM schemes on cellular network greening, where different spatio-temporal power sharing policies with greening, from which we first develop four IM schemes with different power sharing policies. Through

  10. Single-heartbeat electromechanical wave imaging with optimal strain estimation using temporally unequispaced acquisition sequences

    E-Print Network [OSTI]

    Konofagou, Elisa E.

    Single-heartbeat electromechanical wave imaging with optimal strain estimation using temporally-heartbeat electromechanical wave imaging with optimal strain estimation using temporally unequispaced acquisition sequences Published 1 February 2012 Online at stacks.iop.org/PMB/57/1095 Abstract Electromechanical Wave Imaging (EWI

  11. Identify Temporal Websites Based on User Behavior Analysis Yong Wang, Yiqun Liu,

    E-Print Network [OSTI]

    proportion of temporal pages are published by a small number of web sites providing news services, which temporal pages can be picked up with a small overhead of untemporal pages. With this method, web crawlers can focus on these web sites and download pages from them with high priority. 1 Introduction Many web

  12. An energy-momentum-conserving temporal discretization scheme for adhesive contact problems

    E-Print Network [OSTI]

    An energy-momentum-conserving temporal discretization scheme for adhesive contact problems Sachin S' knowledge, none have been proposed for adhesive contact problems. In this work, an energy-momentum-conserving temporal discretization scheme for adhesive contact problems is proposed. A contact criterion is also

  13. Spatial and temporal variations of the Kuroshio east of Taiwan, 19822005: A numerical study

    E-Print Network [OSTI]

    Wu, Chau-Ron

    Spatial and temporal variations of the Kuroshio east of Taiwan, 1982­2005: A numerical study Yi the spatial and temporal variations of the Kuroshio east of Taiwan. Between 22 and 25°N, the mean state of Taiwan and the branching of the Kuroshio northeast of Taiwan, are well reproduced by the model. Southeast

  14. Application of a single step temporal imaging of magnetic induction tomography for metal flow visualization

    E-Print Network [OSTI]

    Adler, Andy

    and sensing coils. MIT has potential in visualization of metal flow for continuous casting mainly because of spatio-temporal resolution using the real metal flow in continuous casting. Results are comparedApplication of a single step temporal imaging of magnetic induction tomography for metal flow

  15. Intro Temporal Tests Declustering Methods Tests on SCEC data Spatiotemporal Test Discussion Testing for Poisson Behavior

    E-Print Network [OSTI]

    Stark, Philip B.

    Intro Temporal Tests Declustering Methods Tests on SCEC data Spatiotemporal Test Discussion Testing Seismological Society of America Annual Meeting San Diego, CA #12;Intro Temporal Tests Declustering Methods Tests on SCEC data Spatiotemporal Test Discussion Quake Physics versus Quake Statistics · Distribution

  16. Spatio-temporal availability of soft mast in clearcuts in the Southern Appalachians

    E-Print Network [OSTI]

    Mitchell, Mike

    Spatio-temporal availability of soft mast in clearcuts in the Southern Appalachians Melissa J availability of soft mast though time is not fully understood. We tested a theoretical model of temporal availability of soft mast in clearcuts using empirical data on percent cover and berry production

  17. Measuring marine fish biodiversity: temporal changes in abundance, life history and

    E-Print Network [OSTI]

    Hutchings, Jeffrey A.

    Measuring marine fish biodiversity: temporal changes in abundance, life history and demography, B3H 4J1 Canada Patterns in marine fish biodiversity can be assessed by quantifying temporal), sole (Solea solea) and pelagic sharks. Combining population data across regions and species, marine

  18. Spatio-temporal precipitation modeling based on time-varying regressions Oleg Makhnin

    E-Print Network [OSTI]

    Borchers, Brian

    Spatio-temporal precipitation modeling based on time-varying regressions Oleg Makhnin Department on monthly precipitation data from gauge measurements. The model accounts for orographic effects in northern New Mexico. We assess spatio-temporal variability and also trace the dependence of precipitation

  19. NEPA Determination Complete

    Broader source: Energy.gov [DOE]

    DOE has determined that this proposed project is a major Federal action that may significantly affect the quality of the human environment. To comply with the National Environmental Policy Act ...

  20. Solids mass flow determination

    DOE Patents [OSTI]

    Macko, Joseph E. (Hempfield Township, Westmoreland County, PA)

    1981-01-01

    Method and apparatus for determining the mass flow rate of solids mixed with a transport fluid to form a flowing mixture. A temperature differential is established between the solids and fluid. The temperature of the transport fluid prior to mixing, the temperature of the solids prior to mixing, and the equilibrium temperature of the mixture are monitored and correlated in a heat balance with the heat capacities of the solids and fluid to determine the solids mass flow rate.

  1. Temporal trends in and influence of wind on PAH concentrations measured near the Great Lakes

    SciTech Connect (OSTI)

    Cortes, D.R.; Basu, I.; Sweet, C.W.; Hites, R.A.

    2000-02-01

    This paper reports on temporal trends in gas- and particle-phase PAH concentrations measured at three sites in the Great Lakes' Integrated Atmospheric Deposition Network: Eagle Harbor, near Lake Superior, Sleeping Bear Dunes, near Lake Michigan, and Sturgeon Point, near Lake Erie. While gas-phase concentrations have been decreasing since 1991 at all sites, particle-phase concentrations have been decreasing only at Sleeping Bear Dunes. To determine whether these results represent trends in background levels or regional emissions, the average concentrations are compared to those found in urban and rural studies. In addition, the influence of local wind direction on PAH concentrations is investigated, with the assumption that dependence on wind direction implies regional sources. Using these two methods, it is found that PAH concentrations at Eagle Harbor and Sleeping Bear Dunes represent regional background levels but that PAH from the Buffalo Region intrude on the background levels measured at the Sturgeon Point site. At this site, wind from over Lake Erie reduces local PAH concentrations.

  2. Attempt to distinguish long-range temporal correlations from the statistics of the increments by natural time analysis

    SciTech Connect (OSTI)

    Varotsos, P. A. [Solid State Section, Physics Department, University of Athens, Panepistimiopolis, Zografos 157 84, Athens (Greece); Solid Earth Physics Institute, Physics Department, University of Athens, Panepistimiopolis, Zografos 157 84, Athens (Greece); Sarlis, N. V.; Lazaridou, M. S. [Solid State Section, Physics Department, University of Athens, Panepistimiopolis, Zografos 157 84, Athens (Greece); Skordas, E. S. [Solid Earth Physics Institute, Physics Department, University of Athens, Panepistimiopolis, Zografos 157 84, Athens (Greece); Tanaka, H. K. [Earthquake Prediction Research Center, Tokai University 3-20-1, Shimizu-Orido, Shizuoka 424-8610 (Japan)

    2006-08-15

    Self-similarity may originate from two origins: i.e., the process memory and the process' increments 'infinite' variance. A distinction is attempted by employing the natural time {chi}. Concerning the first origin, we analyze recent data on seismic electric signals, which support the view that they exhibit infinitely ranged temporal correlations. Concerning the second, slowly driven systems that emit bursts of various energies E obeying the power-law distribution--i.e., P(E){approx}E{sup -{gamma}}--are studied. An interrelation between the exponent {gamma} and the variance {kappa}{sub 1}({identical_to}<{chi}{sup 2}>-<{chi}>{sup 2}) is obtained for the shuffled (randomized) data. For real earthquake data, the most probable value of {kappa}{sub 1} of the shuffled data is found to be approximately equal to that of the original data, the difference most likely arising from temporal correlation. Finally, it is found that the differential entropy associated with the probability P({kappa}{sub 1}) maximizes for {gamma} around {gamma}{approx_equal}1.6-1.7, which is comparable to the value determined experimentally in diverse phenomena: e.g., solar flares, icequakes, dislocation glide in stressed single crystals of ice, etc. It also agrees with the b value in the Gutenberg-Richter law of earthquakes. In addition, the case of multiplicative cascades is studied in the natural time domain.

  3. Expedited Site Characterization Geophysics: Geophysical Methods and Tools for Site Characterization

    E-Print Network [OSTI]

    Goldstein, N.E.

    2009-01-01

    EXPEDITED ITE S CHARACTERIZATION EOPHYSICS G GEOPHYSICALM AND TOOLSFORSITE CHARACTERIZATION NORMAN E. GOLDSTEINExpedited Site Characterization Geophysics CONTENTS

  4. CX-100032: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Seismic Analysis of Spatio-Temporal Fracture Generation During EGS Resource Development CX(s) Applied: A9 Date: 09/04/2014 Location(s): California Offices(s): Golden Field Office Technology Office: Geothermal Technologies Award Number: DE-EE0006766

  5. CX-001190: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    An Integrated Experimental and Numerical Study: Developing a Reaction Transport Model that Couples Chemical Reactions of Mineral Dissolution/Precipitation with Spatial and Temporal Flow Variations in Carbon Dioxide/Brine/Rock SystemsCX(s) Applied: A9, B3.6Date: 03/21/2010Location(s): Minneapolis, MinnesotaOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  6. WFPC2 CTE Characterization

    E-Print Network [OSTI]

    Andrew E. Dolphin

    2002-12-04

    The limiting factor of the accuracy of WFPC2 photometry is the CTE loss, which has increased to the level of 50% or more for faint stars at the top of the chips. I describe recent work on characterizing this effect, and provide improved equations for CTE correction. I also examine issues affecting background measurement, which if not done correctly can introduce artificial nonlinearities into photometry.

  7. Temporal evolution of bubble tip velocity in classical Rayleigh-Taylor instability at arbitrary Atwood numbers

    SciTech Connect (OSTI)

    Liu, W. H.; HEDPS and CAPT, Peking University, Beijing 100871 ; Wang, L. F.; Ye, W. H.; Institute of Applied Physics and Computational Mathematics, Beijing 100088; Department of Physics, Zhejiang University, Hangzhou 310027 ; He, X. T.; Institute of Applied Physics and Computational Mathematics, Beijing 100088

    2013-06-15

    In this research, the temporal evolution of the bubble tip velocity in Rayleigh-Taylor instability (RTI) at arbitrary Atwood numbers and different initial perturbation velocities with a discontinuous profile in irrotational, incompressible, and inviscid fluids (i.e., classical RTI) is investigated. Potential models from Layzer [Astrophys. J. 122, 1 (1955)] and perturbation velocity potentials from Goncharov [Phys. Rev. Lett. 88, 134502 (2002)] are introduced. It is found that the temporal evolution of bubble tip velocity [u(t)] depends essentially on the initial perturbation velocity [u(0)]. First, when the u(0)determined by a numerical approach. The model proposed here agrees with hydrodynamic simulations. Thus, it should be included in applications where the bubble tip velocity plays an important role, such as the design of the ignition target of inertial confinement fusion where the Richtmyer-Meshkov instability (RMI) can create the seed of RTI with u(0)?u{sup asp}, and stellar formation and evolution in astrophysics where the deflagration wave front propagating outwardly from the star is subject to the combined RMI and RTI.

  8. Measurements and Characterization (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-06-01

    Capabilities fact sheet for the National Center for Photovoltaics: Measurements and Characterization that includes scope, core competencies and capabilities, and contact/web information for Analytical Microscopy, Electro-Optical Characterization, Surface Analysis, and Cell and Module Performance.

  9. Biofuels supply chain characterization

    E-Print Network [OSTI]

    Banerjee, Anindya, M. Eng. Massachusetts Institute of Technology

    2007-01-01

    Ethanol can be made from agricultural residues like wheat straw and from crops dedicated to energy use, like switchgrass. We study the logistics aspects of this transformation and determine the main characteristics of the ...

  10. Spatial and temporal resolution of fluid flows: LDRD final report

    SciTech Connect (OSTI)

    Tieszen, S.R.; O`Hern, T.J.; Schefer, R.W.; Perea, L.D.

    1998-02-01

    This report describes a Laboratory Directed Research and Development (LDRD) activity to develop a diagnostic technique for simultaneous temporal and spatial resolution of fluid flows. The goal is to obtain two orders of magnitude resolution in two spatial dimensions and time simultaneously. The approach used in this study is to scale up Particle Image Velocimetry (PIV) and Planar Laser Induced Fluorescence (PLIF) to acquire meter-size images at up to 200 frames/sec. Experiments were conducted in buoyant, fully turbulent, non-reacting and reacting plumes with a base diameter of one meter. The PIV results were successful in the ambient gas for all flows, and in the plume for non-reacting helium and reacting methane, but not reacting hydrogen. No PIV was obtained in the hot combustion product region as the seed particles chosen vaporized. Weak signals prevented PLIF in the helium. However, in reacting methane flows, PLIF images speculated to be from Poly-Aromatic-Hydrocarbons were obtained which mark the flame sheets. The results were unexpected and very insightful. A natural fluorescence from the seed particle vapor was also noted in the hydrogen tests.

  11. Temporal analysis of acoustic emission from a plunged granular bed

    E-Print Network [OSTI]

    Daisuke Tsuji; Hiroaki Katsuragi

    2015-09-18

    The statistical property of acoustic emission (AE) events from a plunged granular bed is analyzed by means of actual time and natural time analyses. These temporal analysis methods allow us to investigate the details of AE events that follow a power-law distribution. In the actual time analysis, the calm time distribution and the decay of the event-occurrence density after the largest event (i.e., Omori-Utsu law) are measured. Although the former always shows a power-law form, the latter does not always obey a power law. Markovianity of the event-occurrence process is also verified using a scaling law by assuming that both of them exhibit power laws. We find that the effective shear strain rate is a key parameter to classify the emergence rate of power-law nature and Markovianity in the granular AE events. For the natural time analysis, the existence of self organized critical (SOC) states is revealed by calculating the variance of natural time $\\chi_k$, where $k$th natural time of N events is defined as $\\chi_k=k/N$. In addition, the energy difference distribution can be fitted by a $q$-Gaussian form, which is also consistent with the criticality of the system.

  12. Turbulence transport modeling of the temporal outer heliosphere

    SciTech Connect (OSTI)

    Adhikari, L.; Zank, G. P.; Hu, Q.; Dosch, A.

    2014-09-20

    The solar wind can be regarded as a turbulent magnetofluid, evolving in an expanding solar wind and subject to turbulent driving by a variety of in situ sources. Furthermore, the solar wind and the drivers of turbulence are highly time-dependent and change with solar cycle. Turbulence transport models describing low-frequency magnetic and velocity fluctuations in the solar wind have so far neglected solar cycle effects. Here we consider the effects of solar cycle variability on a turbulence transport model developed by Zank et al. This model is appropriate for the solar wind beyond about 1 AU, and extensions have described the steady-state dependence of the magnetic energy density fluctuations, correlation length, and solar wind temperature throughout the outer heliosphere. We find that the temporal solar wind introduces a periodic variability, particularly beyond ?10 AU, in the magnetic energy density fluctuations, correlation length, and solar wind temperature. The variability is insufficient to account for the full observed variability in these quantities, but we find that the time-dependent solutions trace the steady-state solutions quite well, suggesting that the steady-state models are reasonable first approximations.

  13. Spatio-temporal self-organization in mudstones.

    SciTech Connect (OSTI)

    Dewers, Thomas A.

    2010-12-01

    Shales and other mudstones are the most abundant rock types in sedimentary basins, yet have received comparatively little attention. Common as hydrocarbon seals, these are increasingly being targeted as unconventional gas reservoirs, caprocks for CO2 sequestration, and storage repositories for waste. The small pore and grain size, large specific surface areas, and clay mineral structures lend themselves to rapid reaction rates, high capillary pressures, and semi-permeable membrane behavior accompanying changes in stress, pressure, temperature and chemical conditions. Under far from equilibrium conditions, mudrocks display a variety of spatio-temporal self-organized phenomena arising from nonlinear thermo-mechano-chemo-hydro coupling. Beginning with a detailed examination of nano-scale pore network structures in mudstones, we discuss the dynamics behind such self-organized phenomena as pressure solitons in unconsolidated muds, chemically-induced flow self focusing and permeability transients, localized compaction, time dependent well-bore failure, and oscillatory osmotic fluxes as they occur in clay-bearing sediments. Examples are draw from experiments, numerical simulation, and the field. These phenomena bear on the ability of these rocks to serve as containment barriers.

  14. TSAR2.3. Temporal Scattering And Response

    SciTech Connect (OSTI)

    McLeod, R.R.; Ray, S.L.; Laguna, G.; Allison, M.; Cabral, B.

    1991-12-01

    TSAR2.3 (Temporal Scattering and Response) is a finite-difference time-domain electromagnetics code suite. TSAR2.3 is a software package for simulating the interactions of electromagnetic waves with linear materials through the use of the finite-difference time-domain method. The code suite contains grid generation, grid verification, input-file creation and post-processing utilities. The physics package, written in Fortran 77, can be pre-processed to run on many different architectures including Cray, Vax and many Unix workstations. Tools are provided to easily port the code to new computers. The physics package is an efficient, flexible electromagnetic simulator. A body under study can be represented as a three-dimensional grid of materials with arbitrary linear properties. This grid can be simulated in a number of ways including incident plane waves, dipoles, and arbitrary incident fields. The grid can be terminated with numerous boundary conditions including free-space radiation, electric conductor, or magnetic conductor. Projection to the far-field in both the time and frequency domains is possible. This distribution includes make files for installing and maintaining the entire code suite.

  15. Duct Remediation Program: Material characterization and removal/handling

    SciTech Connect (OSTI)

    Beckman, T.d.; Davis, M.M.; Karas, T.M.

    1992-11-01

    Remediation efforts were successfully performed at Rocky Flats to locate, characterize, and remove plutonium holdup from process exhaust ducts. Non-Destructive Assay (NDA) techniques were used to determine holdup locations and quantities. Visual characterization using video probes helped determine the physical properties of the material, which were used for remediation planning. Assorted equipment types, such as vacuum systems, scoops, brushes, and a rotating removal system, were developed to remove specific material types. Personnel safety and material handling requirements were addressed throughout the project.

  16. SATELLITE IMAGING OF TEMPORAL PHENOMENA Because the World is Watching

    E-Print Network [OSTI]

    CH-47 helicopter blades at the Stockton, CA Municipal Airport and windmill blades at Ponnequin Wind Detection of runway features and multiple helicopter blade features. Determination of helicopter blade

  17. Sound temporal envelope and time-patterns of activity in the human auditory pathway : an fMRI study

    E-Print Network [OSTI]

    Harms, Michael Patrick, 1972-

    2002-01-01

    The temporal envelope of sound strongly influences the intelligibility of speech, pattern analysis, and the grouping of sequential stimuli. This thesis examined the coding of sound temporal envelope in the time-patterns ...

  18. Materials Characterization | Advanced Materials | ORNL

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

    Electron Microscopy X-ray Scattering Neutron Scattering Mechanical Properties Thermal Optical Spectroscopy Nuclear Magnetic Resonance Macromolecular Characterization Nuclear...

  19. CARD No. 24 Waste Characterization

    E-Print Network [OSTI]

    CARD No. 24 Waste Characterization 24.A.1 BACKGROUND DOE must provide waste inventory information Report (TWBIR), Revisions 2 and 3, which provides waste characterization information specific to DOE solidified waste forms was included. Waste described in TWBIR Revision 3 was primarily characterized through

  20. Workload Characterization Issues and Methodologiesy

    E-Print Network [OSTI]

    Calzarossa, Maria Carla

    Workload Characterization Issues and Methodologiesy Maria Calzarossa, Luisa Massari, and Daniele, Italy fmcc,massari,tesserag@alice.unipv.it http://mafalda.unipv.it/ Abstract. Workload characterization for this characterization. The complexity of the new emerging systems and of their workloads makes these approaches quite

  1. RECOMMENDED GUIDELINES FOR WASTEWATER CHARACTERIZATION

    E-Print Network [OSTI]

    #12;I RECOMMENDED GUIDELINES FOR WASTEWATER CHARACTERIZATION IN THE FRASER RIVER BASIN VOLUME I CONSULTANTS LTD. Richmond, B.C. June 1993 #12;DEVELOPMENT DOCUMENT FOR WASTEWATER CHARACTERIZATION 1 PREFACE and the loadings of specific contaminants by characterizing wastewater releases to the Fraser River and its

  2. Letter Report for Characterization of Biochar

    SciTech Connect (OSTI)

    Amonette, James E.

    2013-04-09

    On 27 November 2012, a bulk biochar sample was received for characterization of selected physical and chemical properties. The main purpose of the characterization was to help determine the degree to which biochar would be suitable as a soil amendment to aid in growth of plants. Towards this end, analyses to determine specific surface, pH, cation-exchange capacity, water retention, and wettability (i.e. surface tension) were conducted. A second objective was to determine how uniform these properties were in the sample. Towards this end, the sample was separated into fractions based on initial particle size and on whether the material was from the external surface or the internal portion of the particle. Based on the results, the biochar has significant liming potentials, significant cation-retention capacities, and highly variable plant-available moisture retention properties that, under the most favorable circumstances, could be helpful to plants. As a consequence, it would be quite suitable for addition to acidic soils and should enhance the fertility of those soils.

  3. DYNAMIC MECHANICAL ANALYSIS CHARACTERIZATION OF GLOVEBOX GLOVES

    SciTech Connect (OSTI)

    Korinko, P.

    2012-02-29

    As part of the characterization of various glovebox glove material from four vendors, the permeability of gas through each type as a function of temperature was determined and a discontinuity in the permeability with temperature was revealed. A series of tests to determine the viscoelastic properties of the glove materials as a function of temperature using Dynamic Mechanical Analysis (DMA) was initiated. The glass transition temperature and the elastic and viscoelastic properties as a function of temperature up to maximum use temperature were determined for each glove material. The glass transition temperatures of the gloves were -60 C for butyl, -30 C for polyurethane, -16 C Hypalon{reg_sign}, - 16 C for Viton{reg_sign}, and -24 C for polyurethane-Hypalon{reg_sign}. The glass transition was too complex for the butyl-Hypalon{reg_sign} and butyl-Viton{reg_sign} composite gloves to be characterized by a single glass transition temperature. All of the glass transition temperatures exceed the vendor projected use temperatures.

  4. CHARACTERIZATION OF DISCONTINUITIES IN THE SPRIPA GRANITE

    E-Print Network [OSTI]

    Thorpe, R.K.

    2010-01-01

    of time-scale drift* Characterization of Jointing In orderPaulsson, Rock mass characterization for storage of nuclearDoe, Hydrogeologic characterizations of fractured rocks for

  5. Thorough characterization of a EUV mask

    E-Print Network [OSTI]

    McIntyre, G.

    2010-01-01

    SRAM (M! ) thorough characterization Figure 13 shows theresults of a thorough characterization of the SRAM area onFigure 13 Thorough characterization of 32nm technology node

  6. Characterization of Fuel-Cell Diffusion Media

    E-Print Network [OSTI]

    Gunterman, Haluna Penelope Frances

    2011-01-01

    Characterization of Fuel-Cell Diffusion Media by HalunaFall 2011 Abstract Characterization of Fuel-Cell Diffusionpredictive capabilities. Characterization of DM and their

  7. Central Characterization Program (CCP) Transuranic Waste Characterizat...

    Office of Environmental Management (EM)

    Characterization Quality Assurance Project Plan Central Characterization Program (CCP) Transuranic Waste Characterization Quality Assurance Project Plan This document was used to...

  8. TRU waste characterization chamber gloveboxes.

    SciTech Connect (OSTI)

    Duncan, D. S.

    1998-07-02

    Argonne National Laboratory-West (ANL-W) is participating in the Department of Energy's (DOE) National Transuranic Waste Program in support of the Waste Isolation Pilot Plant (WIPP). The Laboratory's support currently consists of intrusive characterization of a selected population of drums containing transuranic waste. This characterization is performed in a complex of alpha containment gloveboxes termed the Waste Characterization Gloveboxes. Made up of the Waste Characterization Chamber, Sample Preparation Glovebox, and the Equipment Repair Glovebox, they were designed as a small production characterization facility for support of the Idaho National Engineering and Environmental Laboratory (INEEL). This paper presents salient features of these gloveboxes.

  9. Optical Characterization Laboratory (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-10-01

    This fact sheet describes the purpose, lab specifications, applications scenarios, and information on how to partner with NREL's Optical Characterization Laboratory at the Energy Systems Integration Facility. The Optical Characterization Laboratory at NREL's Energy Systems Integration Facility (ESIF) conducts optical characterization of large solar concentration devices. Concentration solar power (CSP) mirror panels and concentrating solar systems are tested with an emphasis is on measurement of parabolic trough mirror panels. The Optical Characterization Laboratory provides state-of-the-art characterization and testing capabilities for assessing the optical surface quality and optical performance for various CSP technologies including parabolic troughs, linear Fresnel, dishes, and heliostats.

  10. Tunable temporal gap based on simultaneous fast and slow light in electro-optic photonic crystals

    E-Print Network [OSTI]

    Li, Guangzhen; Jiang, Haowei; Liu, Yi'an; Liu, Xiao; Chen, Xianfeng

    2015-01-01

    We demonstrated a tunable temporal gap based on simultaneous fast and slow light in electro-optic photonic crystals. The light experiences an anomalous dispersion near the transmission center and a normal dispersion away from the center, where it can be accelerated and slowed down, respectively. We also obtained the switch between fast and slow light by adjusting the external electric filed. The observed largest temporal gap is 541 ps, which is crucial in practical event operation inside the gap. The results offer a new solution for temporal cloak.

  11. Methods of Photoelectrode Characterization with High Spatial...

    Office of Scientific and Technical Information (OSTI)

    and Temporal Resolution Authors: Esposito, Daniel V ; Baxter, Jason B ; John, Jimmy ; Lewis, Nathan S. ; Moffat, Thomas P ; Ogitsu, Tadashi ; O'Neil, Glen D ; Pham, T. D. ;...

  12. Nondestructive material characterization

    DOE Patents [OSTI]

    Deason, Vance A. (Idaho Falls, ID); Johnson, John A. (Idaho Falls, ID); Telschow, Kenneth L. (Idaho Falls, ID)

    1991-01-01

    A method and apparatus for nondestructive material characterization, such as identification of material flaws or defects, material thickness or uniformity and material properties such as acoustic velocity. The apparatus comprises a pulsed laser used to excite a piezoelectric (PZ) transducer, which sends acoustic waves through an acoustic coupling medium to the test material. The acoustic wave is absorbed and thereafter reflected by the test material, whereupon it impinges on the PZ transducer. The PZ transducer converts the acoustic wave to electrical impulses, which are conveyed to a monitor.

  13. Characterizing Heavy Ion

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D BGene Network ShapingDate:Characterization ofArctic

  14. Radiometer Characterization System

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMassR&D100 Winners * Impacts on GlobalRachel2 Radiometer Characterization System The

  15. ORISE: Characterization surveys

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesseworkSURVEY UNIVERSE The 2014Capabilities ORISE technicianCharacterization

  16. Ultrasonic characterization of solid liquid suspensions

    DOE Patents [OSTI]

    Panetta, Paul D.

    2010-06-22

    Using an ultrasonic field, properties of a solid liquid suspension such as through-transmission attenuation, backscattering, and diffuse field are measured. These properties are converted to quantities indicating the strength of different loss mechanisms (such as absorption, single scattering and multiple scattering) among particles in the suspension. Such separation of the loss mechanisms can allow for direct comparison of the attenuating effects of the mechanisms. These comparisons can also indicate a model most likely to accurately characterize the suspension and can aid in determination of properties such as particle size, concentration, and density of the suspension.

  17. PUNCTURE TEST CHARACTERIZATION OF GLOVEBOX GLOVES

    SciTech Connect (OSTI)

    Korinko, P.; Chapman, G.

    2012-02-29

    An experiment was conducted to determine the puncture resistance of 15 gloves that are used or proposed for use in the Tritium Facility at Savannah River Site (SRS). These data will serve as a baseline for characterization and may be incorporated into the glove procurement specification. The testing was conducted in agreement with ASTM D120 and all of the gloves met or exceeded the minimum requirements. Butyl gloves exhibited puncture resistance nearly 2.5 times the minimum requirements at SRS while Polyurethane was nearly 7.5x the minimum.

  18. Spatio-temporal relationships between feral hogs and cattle with implicatons for disease transmission 

    E-Print Network [OSTI]

    Deck, Aubrey Lynn

    2007-09-17

    ) could harbor and shed disease in areas used by domestic livestock such as cattle (Bos taurus). Extent of risk logically depends on spatio-temporal interactions between species. I used Global Positioning System (GPS) collars on cattle and hogs...

  19. Structured video content analysis : learning spatio-temporal and multimodal structures

    E-Print Network [OSTI]

    Song, Yale

    2014-01-01

    Video data exhibits a variety of structures: pixels exhibit spatial structure, e.g., the same class of objects share certain shapes and/or colors in image; sequences of frames exhibit temporal structure, e.g., dynamic ...

  20. Supplementary Information for: In situ spatially and temporally resolved measurements of salt

    E-Print Network [OSTI]

    Santiago, Juan G.

    Supplementary Information for: In situ spatially and temporally resolved measurements of salt additional figures. #12;SI1 SI1: Additional comparisons of salt concentration profiles In Figure SI1, we

  1. A Bayesian approach to integrate temporal data into probabilistic risk analysis of monitored NAPL remediation

    E-Print Network [OSTI]

    Bolster, Diogo

    A Bayesian approach to integrate temporal data into probabilistic risk analysis of monitored NAPL quantifying risks associated with the failure of such efforts. We conduct a probabilistic risk analysis (PRA

  2. 2006 Special issue Perceiving the unusual: Temporal properties of hierarchical motor

    E-Print Network [OSTI]

    Demiris, Yiannis

    2006 Special issue Perceiving the unusual: Temporal properties of hierarchical motor of demonstrated actions to the observer robot's equivalent motor representations (Alissandrakis, Nehaniv visual information and retrieving motor representations, differ in the way that the perceptual

  3. Nanoparticle coatings for spatial and temporal control of cancer imaging and therapy

    E-Print Network [OSTI]

    Harris, Todd J

    2008-01-01

    Nature has evolved elegant strategies to temporally and spatially control protein activity, including the synthesis of subunits that require assembly for function, the incorporation of pro-domains that require cleavage for ...

  4. Spatio-temporal variability and predictability of summer monsoon onset over the Philippines

    E-Print Network [OSTI]

    Robertson, Andrew W.

    1 Spatio-temporal variability and predictability of summer monsoon onset over the Philippines V + International Research Institute for Climate and Society, Columbia University, USA * Philippine Atmospheric Geophysical and Astronomical Services Administration, Manila, Philippines Submitted to Climate Dynamics

  5. Author's personal copy Thorium-234 as a tracer of spatial, temporal and vertical variability

    E-Print Network [OSTI]

    Buesseler, Ken

    Author's personal copy Thorium-234 as a tracer of spatial, temporal and vertical variability 2009 Accepted 6 April 2009 Available online 16 April 2009 Keywords: Thorium-234 Particle flux Sediment

  6. Generating spatially and temporally controllable long-range concentration gradients in a microfluidic device

    E-Print Network [OSTI]

    Vidula, Mahesh K.

    Concentration gradients have important applications in chemical and biological studies. Here we have achieved rapid generation of spatially and temporally controllable concentration gradients of diffusible molecules (i.e. ...

  7. Temporal Variation in Space and Resource Use of Macaws in the Southeastern Peruvian Amazon 

    E-Print Network [OSTI]

    Adamek, Krista Anne

    2012-07-16

    data on macaws in a region with relatively intact rainforest. Specific objectives were to (1) quantify space use, describe the spatial and temporal variation in movement patterns, explore habitat selection and spatial pattern of resources during the non...

  8. Spatio-temporal analysis of eukaryotic cell motility by improved force cytometry

    E-Print Network [OSTI]

    Firtel, Richard A.

    Spatio-temporal analysis of eukaryotic cell motility by improved force cytometry Juan C. del A´ lamo*, Ruedi Meili , Baldomero Alonso-Latorre*, Javier Rodri´guez-Rodri´guez*, Alberto Aliseda

  9. Spatial and temporal winter territory use and behavioral responses of whooping cranes to human activities 

    E-Print Network [OSTI]

    LaFever, Kristin E.

    2009-06-02

    I investigated spatial and temporal winter behavior and behavioral responses of 5 territorial whooping crane families to human activities at Aransas National Wildlife Refuge during winters 2003-2004 and 2004-2005. Adult and juvenile cranes spent...

  10. Supplementary Information for Methanol as a sensitive probe for spatial and temporal variations of the

    E-Print Network [OSTI]

    Supplementary Information for Methanol as a sensitive probe for spatial and temporal variations.757 0.68(5) Table I. Methanol (12 CH16 3 OH) maser transitions and accurate rest frequencies taken from

  11. Querying Temporal Databases via OWL 2 QL Szymon Klarman and Thomas Meyer

    E-Print Network [OSTI]

    Meyer, Tommie

    Intelligence Research, CSIR Meraka and University of KwaZulu-Natal, South Africa {sklarman architecture and differing in the flavour and depth of temporal reasoning they support, aim at addressing

  12. Analyzing spatial-temporal patterns of motor vehicle crashes using GIS: a case study in Dallas 

    E-Print Network [OSTI]

    Lu, Bing

    2003-01-01

    This paper uses GIS to analyze the characteristics of temporal and spatial distributions of motor vehicle crashes. These characteristics include that traffic accidents are most likely to occur in the afternoon "rush hour" (4:00 - 6:00PM...

  13. Temporal Patterns of Medications Dispensed to Children and Adolescents in a National Insured Population

    E-Print Network [OSTI]

    Olson, Karen L.

    This study aimed to comprehensively describe prevalence and temporal dispensing patterns for medications prescribed to children and adolescents in the United States. Participants were 1.6 million children (49% female) under ...

  14. An analysis of spatial and temporal variation in fecal indicator concentrations in Singapore

    E-Print Network [OSTI]

    Shin, Suejung

    2012-01-01

    This study used extensive measurements of indicator concentrations to describe spatial and temporal patterns of four fecal indicators: E. coli, enterococci, total coliform, and human factor. Twenty twelve-hour time series ...

  15. Temporal and spatial variation in methyl bromide emissions from a salt marsh 

    E-Print Network [OSTI]

    Drewer, Julia; Heal, Mathew R; Heal, Kate V; Smith, Keith A

    2006-01-01

    Methyl bromide (CH3Br) is a trace gas involved in stratospheric ozone depletion with both anthropogenic and natural sources. Estimates of natural source strengths are highly uncertain. In this study, >320 highly temporally ...

  16. The petrous portion of the human temporal bone: potential for forensic individuation 

    E-Print Network [OSTI]

    Wiersema, Jason Matthew

    2009-06-02

    are threefold: (1) To investigate variability in the shape of the petrous portion of the human temporal bone using two-dimensional morphometric analysis; (2) to evaluate the reliability of the resultant method in forensic identification; and (3) to consider...

  17. Time-Varying Networks: Recovering Temporally Rewiring Genetic Networks During the Life Cycle

    E-Print Network [OSTI]

    . Using a new machine learning method called Tesla, which builds on a novel temporal logistic regression technique, we report the first successful genome-wide reverse- engineering of the latent sequence

  18. Intro Temporal Poisson Spatiotemporal exchangeability Discussion Are Declustered Earthquake Catalogs Poisson?

    E-Print Network [OSTI]

    Stark, Philip B.

    Phenomenology · Earthquakes destroy and kill. Studied since ancient times. Prediction is an old goal: save livesIntro Temporal Poisson Spatiotemporal exchangeability Discussion Are Declustered Earthquake fit Poisson process models have used tests that ignore earthquake locations. They divide time

  19. Mixed waste characterization reference document

    SciTech Connect (OSTI)

    1997-09-01

    Waste characterization and monitoring are major activities in the management of waste from generation through storage and treatment to disposal. Adequate waste characterization is necessary to ensure safe storage, selection of appropriate and effective treatment, and adherence to disposal standards. For some wastes characterization objectives can be difficult and costly to achieve. The purpose of this document is to evaluate costs of characterizing one such waste type, mixed (hazardous and radioactive) waste. For the purpose of this document, waste characterization includes treatment system monitoring, where monitoring is a supplement or substitute for waste characterization. This document establishes a cost baseline for mixed waste characterization and treatment system monitoring requirements from which to evaluate alternatives. The cost baseline established as part of this work includes costs for a thermal treatment technology (i.e., a rotary kiln incinerator), a nonthermal treatment process (i.e., waste sorting, macronencapsulation, and catalytic wet oxidation), and no treatment (i.e., disposal of waste at the Waste Isolation Pilot Plant (WIPP)). The analysis of improvement over the baseline includes assessment of promising areas for technology development in front-end waste characterization, process equipment, off gas controls, and monitoring. Based on this assessment, an ideal characterization and monitoring configuration is described that minimizes costs and optimizes resources required for waste characterization.

  20. Spatial and Temporal Infiltration Dynamics during Managed Aquifer Recharge

    E-Print Network [OSTI]

    Fisher, Andrew

    in storage), whereas point-specific infiltration rates were determined using8 heat as a tracer and time demand worldwide, to satisfy urban, agricultural,21 industrial, and environmental needs, particularly basins in California are overdrafted, such that the combined influence of31 groundwater pumping

  1. Characterization of single photons using two-photon interference

    E-Print Network [OSTI]

    T. Legero; T. Wilk; A. Kuhn; G. Rempe

    2005-12-02

    Adiabatic passage techniques allow the generation of single photons which are very long compared to the typical detector time resolution. Therefore the detection time of a photon can be measured within the duration of the single-photon wavepacket. As a consequence, two-photon interference can be investigated in a time-resolved manner, i.e., the coincidence rate can be measured as a function of the time between photodetections. The theoretical analysis shows that this method not only gives information about the duration of single photons, but also about their coherence time. Here we discuss how to use this method for a spectral or temporal characterization of a single-photon source.

  2. Nighttime atmospheric stability changes and their effects on the temporal intensity of a mesoscale convective complex 

    E-Print Network [OSTI]

    Hovis, Jeffrey Scott

    1988-01-01

    NIGHTTIME ATMOSPHERIC STABILITY CHANGES AND THEIR EFFECTS ON THE TEMPORAL INTENSITY OF A MESOSCALE CONVECTIVE COMPLEX A Thesis JEFFREY SCOTT HOVIS Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE May 1988 Major Subject: Meteorology NIGHTTIME ATMOSPHERIC STABILITY CHANGES AND THEIR EFFECTS ON THE TEMPORAL INTENSITY OF A MESOSCALE CONVECTIVE COMPLEX A Thesis JEFFREY SCOTT HOVIS Approved as to style...

  3. Mechanical Characterization of Fuel Injector Piezoactuators and...

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

    Characterization of Fuel Injector Piezoactuators and their Piezoceramics Mechanical Characterization of Fuel Injector Piezoactuators and their Piezoceramics 2007 Diesel...

  4. CLEERS Activities: Diesel Soot Filter Characterization & NOx...

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

    Activities: Diesel Soot Filter Characterization & NOx Control Fundamentals CLEERS Activities: Diesel Soot Filter Characterization & NOx Control Fundamentals 2009 DOE Hydrogen...

  5. Microearthquake Technology for EGS Fracture Characterization...

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

    Microearthquake Technology for EGS Fracture Characterization; 2010 Geothermal Technology Program Peer Review Report Microearthquake Technology for EGS Fracture Characterization;...

  6. Bacterial Diversity in Livestock Manure Composts as Characterized by Terminal

    E-Print Network [OSTI]

    Tiquia-Arashiro, Sonia M.

    Bacterial Diversity in Livestock Manure Composts as Characterized by Terminal Restriction Fragment in the decomposition of organic matter during the composting process. However, microbial communities active in composts of bacterial communities in livestock manure compost was determined based on terminal restriction fragment

  7. Characterization of Nanoporous Metal-Carbon Nanotube Composite Arrays

    E-Print Network [OSTI]

    Collins, Gary S.

    Characterization of Nanoporous Metal-Carbon Nanotube Composite Arrays Chloe Heinen, Dr. David Bahr plating CNTs were researched to determine a proper method. It was found that electroless nickel plating of an important six step pretreatment followed by the plating solution. The plating solution consisted of: ·Nickel

  8. Page 1 of 8 AN INNOVATIVE EXPERIMENTAL DEVICE TO CHARACTERIZE

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    to determine the residual capacity of aged specimens. This paper aims at describing the proposed creep test test configuration and the creep load was applied to the specimens by means of a sustained dead weightPage 1 of 8 AN INNOVATIVE EXPERIMENTAL DEVICE TO CHARACTERIZE THE CREEP BEHAVIOR OF CONCRETE

  9. Characterization of Mesoamerican jade

    SciTech Connect (OSTI)

    Bishop, R.L.; Sayre, E.V.; van Zelst, L.

    1983-11-23

    Jadeite occurring in the Motague River Valley of Guatemala has been characterized by neutron activation analysis and forms two district, phase-related groups. Comparison of the compositional profiles of Mayan jadeite artifacts reveals many specimens having profiles matching those of the Montagua source. Of particular interest are the large number of jadeite artifacts which show internal similarity yet have compositional patterns which are significantly different from the Montagua samples and Montagua-related artifacts. A few of the analyzed Costa Rican artifacts show patterns similar to those of the Motagua yet the vast majority fall within one of the two Costa Rican compositional groups. When considering the non-Motagua related Mayan artifacts, the analytical approach appears to be sufficiently sensitive so as to distinguish differences between the Chrome-green and Chichen-green material. Even two Honduran site specific groups of albite - cultural jade - form distinct groups.

  10. Photoelectronic characterization of heterointerfaces.

    SciTech Connect (OSTI)

    Brumbach, Michael Todd

    2012-02-01

    In many devices such as solar cells, light emitting diodes, transistors, etc., the performance relies on the electronic structure at interfaces between materials within the device. The objective of this work was to perform robust characterization of hybrid (organic/inorganic) interfaces by tailoring the interfacial region for photoelectron spectroscopy. Self-assembled monolayers (SAM) were utilized to induce dipoles of various magnitudes at the interface. Additionally, SAMs of molecules with varying dipolar characteristics were mixed into spatially organized structures to systematically vary the apparent work function. Polymer thin films were characterized by depositing films of varying thicknesses on numerous substrates with and without interfacial modifications. Hard X-ray photoelectron spectroscopy (HAXPES) was performed to evaluate a buried interface between indium tin oxide (ITO), treated under various conditions, and poly(3-hexylthiophene) (P3HT). Conducting polymer films were found to be sufficiently conducting such that no significant charge redistribution in the polymer films was observed. Consequently, a further departure from uniform substrates was taken whereby electrically disconnected regions of the substrate presented ideally insulating interfacial contacts. In order to accomplish this novel strategy, interdigitated electrodes were used as the substrate. Conducting fingers of one half of the electrodes were electrically grounded while the other set of electrodes were electronically floating. This allowed for the evaluation of substrate charging on photoelectron spectra (SCOPES) in the presence of overlying semiconducting thin films. Such an experiment has never before been reported. This concept was developed out of the previous experiments on interfacial modification and thin film depositions and presents new opportunities for understanding chemical and electronic changes in a multitude of materials and interfaces.

  11. PUREX low-level waste radionuclide characterization

    SciTech Connect (OSTI)

    Ellis, M.W.; LeBaron, G.J.

    1995-01-16

    The PUREX low-level waste (LLW) radionuclide characterization document describes the methodology for the characterization of solid LLW and solid low-level mixed waste (MW) with the respect to radiological characteristics. This document only serves as an overview of the PUREX radionuclide characterization methodology and provides specific examples for how the radionuclide distribution is derived. It would be impractical to provide all background information in this document. If further clarification and background information is required, consult the PUREX Regulatory Compliance group files. This document applies to only that waste generated in or is the responsibility of the PUREX facilities. The US Department of Energy (DOE) establishes the requirements for radioactive solid waste in DOE Order 5820.2A Radioactive Waste Management. Chapters 2 and 3 from DOE Order 5820.2A requires that generators of solid wastes in the LLW categories and the radioactive mixed waste subcategories: (1) identify the major radionuclides in each solid waste matrix and (2) determine the radionuclide concentrations and waste classes of their solid wastes. In addition, the Order also requires each generator to carry out a compliance program that ensures the proper certification of the solid waste generated.

  12. 2010 US Lighting Market Characterization

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

    2010 U.S. Lighting Market Characterization January 2012 Prepared for: Solid-State Lighting Program Building Technologies Program Office of Energy Efficiency and Renewable Energy...

  13. Temporal Structure of ENSO in 20th Century Climate Simulations

    E-Print Network [OSTI]

    Wittenberg, Andrew

    - onal width determines how far from the equator extra-equatorial Rossby waves are generated, thus structure of ENSO in simulations of the 20th century performed with the latest generation of climate models (Japan) 2.6 15.6 177.9 GFDL-CM2.0 GFDL (USA) 2.5 14.9 171.9 IPSL-CM4 IPSL (France) 2.3 12.0 190.1 CCSM3

  14. Characterization of nuclear physics targets using Rutherford backscattering and particle induced x-ray emission

    E-Print Network [OSTI]

    Th. Rubehn; G. J. Wozniak; L. Phair; L. G. Moretto; Kin M. Yu

    1996-09-23

    Rutherford backscattering and particle induced x-ray emission have been utilized to precisely characterize targets used in nuclear fission experiments. The method allows for a fast and non destructive determination of target thickness, homogeneity and element composition.

  15. Characterization of Thin-Bedded Reservoir in the Gulf of Mexico: An Integrated Approach. 

    E-Print Network [OSTI]

    Lalande, Severine

    2004-09-30

    complex but the quality of the reservoir is determined by connection and length of beds below the resolution of usual reflection data. Improved characterization is needed to improve development and production of these reservoirs. This study presents...

  16. Chemical characterization of dissolved organic matter (DOM) in seawater : structure, cycling, and the role of biology

    E-Print Network [OSTI]

    Quan, Tracy M. (Tracy Michelle), 1977-

    2005-01-01

    The goal of this thesis is to investigate three different areas relating to the characterization of dissolved organic matter (DOM): further determination of the chemical compounds present in high molecular weight DOM ...

  17. Final report for the Iowa Livestock Industry Waste Characterization and Methane Recovery Information Dissemination Project

    SciTech Connect (OSTI)

    Garrison, M.V.; Richard, Thomas L

    2001-11-13

    This report summarizes analytical methods, characterizes Iowa livestock wastes, determines fossil fuel displacement by methane use, assesses the market potential, and offers recommendations for the implementation of methane recovery technologies.

  18. Characterization report for the ferrocyanide safety issue

    SciTech Connect (OSTI)

    Pulsipher, B.A.; Burger, L.L.; Liebetrau, A.M.; Scheele, R.D.

    1997-06-01

    Recently PNNL was tasked by DOE to develop and demonstrate a risk-based strategic approach to characterizing Hanford`s Nuclear Waste Tanks. This strategic approach was documented in a report entitled ``A Risk-Based Focused Decision-Management Approach for Justifying Characterization of Hanford Tank Waste``. In support of the general approach, a specific strategy for addressing each of the several safety issues associated with the tanks was developed. This report documents the approach for the Ferrocyanide Safety Issue. The purpose of this report is to describe a structured logic diagram (SLD) for determining the risk associated with the ferrocyanide tank safety issue and provide the supporting information for the SLD. The SLD addresses the resolution of risks resulting from the presence of ferrocyanide layers within the Hanford tanks. The informational requirements for determining risk from any reaction stemming from ferrocyanide are outlined in the SLD. This report will describe the potential paths to a successful resolution of the ferrocyanide safety issue. Complete development of the intervention pathway is outside the scope of this current activity. General descriptions of the approach, key components of the SLD, and conclusions are provided in the body of this report. The complete SLD, descriptions of each box shown in the SLD, a discussion on how to fill data needs, and a list of contributors is provided in the appendices.

  19. Noncontact semiconductor wafer characterization with the terahertz Hall D. M. Mittleman,a)

    E-Print Network [OSTI]

    Natelson, Douglas

    of Physics. S0003-6951 97 01427-7 Doped semiconductors are frequently characterized by two material properties and quality. They also determine many of the electrical and optical properties of the material. NNoncontact semiconductor wafer characterization with the terahertz Hall effect D. M. Mittleman,a) J

  20. Spatial and temporal variations in indoor environmental conditions, human occupancy, and operational characteristics in a new hospital building

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

    Ramos, Tiffanie; Dedesko, Sandra; Siegel, Jeffrey A.; Gilbert, Jack A.; Stephens, Brent

    2015-03-02

    The dynamics of indoor environmental conditions, human occupancy, and operational characteristics of buildings influence human comfort and indoor environmental quality, including the survival and progression of microbial communities. A suite of continuous, long-term environmental and operational parameters were measured in ten patient rooms and two nurse stations in a new hospital building in Chicago, IL to characterize the indoor environment in which microbial samples were taken for the Hospital Microbiome Project. Measurements included environmental conditions (indoor dry-bulb temperature, relative humidity, humidity ratio, and illuminance) in the patient rooms and nurse stations; differential pressure between the patient rooms and hallways; surrogatemore »measures for human occupancy and activity in the patient rooms using both indoor air CO? concentrations and infrared doorway beam-break counters; and outdoor air fractions in the heating, ventilating, and air-conditioning systems serving the sampled spaces. Measurements were made at 5-minute intervals over consecutive days for nearly one year, providing a total of ~8×10? data points. Indoor temperature, illuminance, and human occupancy/activity were all weakly correlated between rooms, while relative humidity, humidity ratio, and outdoor air fractions showed strong temporal (seasonal) patterns and strong spatial correlations between rooms. Differential pressure measurements confirmed that all patient rooms were operated at neutral pressure. The patient rooms averaged about 100 combined entrances and exits per day, which suggests they were relatively lightly occupied compared to higher traffic environments (e.g., retail buildings) and more similar to lower traffic office environments. There were also clear differences in several environmental parameters before and after the hospital was occupied with patients and staff. Characterizing and understanding factors that influence these building dynamics is vital for hospital environments, where they can impact patient health and the survival and spread of healthcare associated infections.« less

  1. Spatial and temporal variations in indoor environmental conditions, human occupancy, and operational characteristics in a new hospital building

    SciTech Connect (OSTI)

    Ramos, Tiffanie; Dedesko, Sandra; Siegel, Jeffrey A.; Gilbert, Jack A.; Stephens, Brent

    2015-03-02

    The dynamics of indoor environmental conditions, human occupancy, and operational characteristics of buildings influence human comfort and indoor environmental quality, including the survival and progression of microbial communities. A suite of continuous, long-term environmental and operational parameters were measured in ten patient rooms and two nurse stations in a new hospital building in Chicago, IL to characterize the indoor environment in which microbial samples were taken for the Hospital Microbiome Project. Measurements included environmental conditions (indoor dry-bulb temperature, relative humidity, humidity ratio, and illuminance) in the patient rooms and nurse stations; differential pressure between the patient rooms and hallways; surrogate measures for human occupancy and activity in the patient rooms using both indoor air CO? concentrations and infrared doorway beam-break counters; and outdoor air fractions in the heating, ventilating, and air-conditioning systems serving the sampled spaces. Measurements were made at 5-minute intervals over consecutive days for nearly one year, providing a total of ~8×10? data points. Indoor temperature, illuminance, and human occupancy/activity were all weakly correlated between rooms, while relative humidity, humidity ratio, and outdoor air fractions showed strong temporal (seasonal) patterns and strong spatial correlations between rooms. Differential pressure measurements confirmed that all patient rooms were operated at neutral pressure. The patient rooms averaged about 100 combined entrances and exits per day, which suggests they were relatively lightly occupied compared to higher traffic environments (e.g., retail buildings) and more similar to lower traffic office environments. There were also clear differences in several environmental parameters before and after the hospital was occupied with patients and staff. Characterizing and understanding factors that influence these building dynamics is vital for hospital environments, where they can impact patient health and the survival and spread of healthcare associated infections.

  2. System for generating pluralities of optical pulses with predetermined frequencies in a temporally and spatially overlapped relationship

    DOE Patents [OSTI]

    Meyerhofer, D.D.; Schmid, A.W.; Chuang, Y.

    1992-03-10

    Ultrashort (pico second and shorter) laser pulses having components of different frequency which are overlapped coherently in space and with a predetermined constant relationship in time, are generated and may be used in applications where plural spectrally separate, time-synchronized pulses are needed as in wave-length resolved spectroscopy and spectral pump probe measurements for characterization of materials. A Chirped Pulse Amplifier (CPA), such as a regenerative amplifier, which provides amplified, high intensity pulses at the output thereof which have the same spatial intensity profile, is used to process a series of chirped pulses, each with a different central frequency (the desired frequencies contained in the output pulses). Each series of chirped pulses is obtained from a single chirped pulse by spectral windowing with a mask in a dispersive expansion stage ahead of the laser amplifier. The laser amplifier amplifies the pulses and provides output pulses with like spatial and temporal profiles. A compression stage then compresses the amplified pulses. All the individual pulses of different frequency, which originated in each single chirped pulse, are compressed and thereby coherently overlapped in space and time. The compressed pulses may be used for the foregoing purposes and other purposes wherien pulses having a plurality of discrete frequency components are required. 4 figs.

  3. On coaxial minors of determinants

    E-Print Network [OSTI]

    Babcock, Wealthy Consuelo

    1922-01-01

    . Approved by: ROOlOb SlSb^ Contents Page I. Introduction 1 II. Independence of Coaxial Minors of Special Determinants 9 A. Symmetric Determinant 9 B. Skew-symmetric Determinant ...14 C. Circulant 17 D. Hankel's Determinant 19 III... Introduction The work on coaxial minors of a deter­ minant has centered about the problems of deter­ mining the number of independent coaxial minors, of finding independent sets, and of expressing the determinant in terms of the minors of an independent set...

  4. Hydrate characterization research overview

    SciTech Connect (OSTI)

    Malone, R.D.

    1993-06-01

    Gas hydrate research has been focused primarily on the development of a basic understanding of hydrate formation and dissociation in the laboratory, as well as in the field. Laboratory research on gas hydrates characterized the physical system, which focused on creating methane hydrates samples, tetrahydrofuran (THF) hydrate samples, consolidated rock samples, frost base mixtures, water/ice-base mixtures, and water-base mixtures. Laboratory work produced measurements of sonic velocity and electrical resistivity of hydrates. As work progressed, areas, such as the Gulf of Mexico and the Guatemala Trench, where gas hydrates are likely to occur were identified, and specific high potential areas were targeted for detailed investigation. The testing of samples and recovered cores from such areas provided information for detection of hydrate formations in the natural environment. Natural gas hydrate samples have been tested for thermal properties, dissociation properties, fracture mechanics, and optical properties. Acoustical properties were investigated both in the laboratory and, as possible, in the field. Sonic velocity and electrical resistivity measurements will continue to be obtained. These activities have been undertaken in hydrate deposits on Alaska`s North Slope, the Gulf of Mexico and the US East coast offshore, as well as other gas hydrate target areas.

  5. Plant Phenotype Characterization System

    SciTech Connect (OSTI)

    Daniel W McDonald; Ronald B Michaels

    2005-09-09

    This report is the final scientific report for the DOE Inventions and Innovations Project: Plant Phenotype Characterization System, DE-FG36-04GO14334. The period of performance was September 30, 2004 through July 15, 2005. The project objective is to demonstrate the viability of a new scientific instrument concept for the study of plant root systems. The root systems of plants are thought to be important in plant yield and thus important to DOE goals in renewable energy sources. The scientific study and understanding of plant root systems is hampered by the difficulty in observing root activity and the inadequacy of existing root study instrumentation options. We have demonstrated a high throughput, non-invasive, high resolution technique for visualizing plant root systems in-situ. Our approach is based upon low-energy x-ray radiography and the use of containers and substrates (artificial soil) which are virtually transparent to x-rays. The system allows us to germinate and grow plant specimens in our containers and substrates and to generate x-ray images of the developing root system over time. The same plant can be imaged at different times in its development. The system can be used for root studies in plant physiology, plant morphology, plant breeding, plant functional genomics and plant genotype screening.

  6. Spatio-temporal evolution of the H ? L back transition

    SciTech Connect (OSTI)

    Miki, K.; Center for Computational Science and e-Systems, Japan Atomic Energy Agency, Chiba 277-8587 ; Diamond, P. H.; Center for Momentum Transport and Flow Organization, University of California, San Diego, California 92093 ; Schmitz, L.; McDonald, D. C.; Estrada, T.; Gürcan, Ö. D.; Tynan, G. R.

    2013-06-15

    Since ITER will operate close to threshold and with limited control, the H ? L back transition is a topic important for machine operations as well as physics. Using a reduced mesoscale model [Miki et al., Phys. Plasmas 19, 092306 (2012)], we investigate ELM-free H ? L back transition dynamics in order to isolate transport physics effects. Model studies indicate that turbulence spreading is the key process which triggers the back transition. The transition involves a feedback loop linking turbulence and profiles. The I-phase appears during the back transition following a slow power ramp down, while fast ramp-downs reveal a single burst of zonal flow during the back transition. The I-phase nucleates at the pedestal shoulder, as this is the site of the residual turbulence in H-mode. Hysteresis in the profile gradient scale length is characterized by the Nusselt number, where Nu=?{sub i,turb}/?{sub i,neo}. Relative hysteresis of temperature gradient vs density gradient is sensitive to the pedestal Prandtl number, where Pr{sub ped}=D{sub ped}/?{sub i,neo}. We expect the H-mode to be somewhat more resilient in density than in temperature.

  7. Temporal evolution characteristics of an annular-mode gliding arc discharge in a vortex flow

    SciTech Connect (OSTI)

    Zhao, Tian-Liang; Liu, Jing-Lin; Li, Xiao-Song; Liu, Jin-Bao; Song, Yuan-Hong; Xu, Yong; Zhu, Ai-Min

    2014-05-15

    An annular-mode gliding arc discharge powered by a 50?Hz alternating current (ac) supply was studied in a vortex flow of dry and humid air. Its temporal evolution characteristics were investigated by electrical measurement, temporally resolved imaging, and temporally resolved optical emission spectroscopic measurements. Three discharge stages of arc-ignition, arc-gliding, and arc-extinction were clearly observed in each half-cycle of the discharge. During the arc-gliding stage, the intensity of light emission from the arc root at the cathode was remarkably higher than that at other areas. The spectral intensity of N{sub 2}(C{sup 3}?{sub u}?B{sup 3}?{sub g}) during the arc-ignition stage was much higher than that during the arc-gliding stage, which was contrary to the temporal evolutions of spectral intensities for N{sub 2}{sup +}(B{sup 2}?{sub u}{sup +}?X{sup 2}?{sub g}{sup +}) and OH(A{sup 2}?{sup +}?X{sup 2}?{sub i}). Temporally resolved vibrational and rotational temperatures of N{sub 2} were also presented and decreased with increasing the water vapor content.

  8. CX-012427: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Alaska Hydrate Production Testing: Test Site Selection and Characterization CX(s) Applied: A1, A9Date: 41879 Location(s): ColoradoOffices(s): National Energy Technology Laboratory

  9. CX-003495: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Seismic Fracture Characterization Methodologies for Enhanced Geothermal SystemsCX(s) Applied: A9, B3.1Date: 08/18/2010Location(s): NevadaOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  10. CX-010356: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Site Characterization Investigation and Environmental Monitoring Activities CX(s) Applied: B3.1 Date: 11/19/2012 Location(s): Tennessee, California, Virginia Offices(s): Berkeley Site Office

  11. CX-012271: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Quantitative Characterization of Impacts of Couple Geomechanics and Flow - Lab Experiments/Modeling CX(s) Applied: B3.6 Date: 06/25/2014 Location(s): California Offices(s): National Energy Technology Laboratory

  12. CX-012270: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Quantitative Characterization of Impacts of Couple Geomechanics and Flow - Lab Experiments/Modeling CX(s) Applied: B3.6 Date: 06/25/2014 Location(s): Colorado Offices(s): National Energy Technology Laboratory

  13. CX-004281: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Characterizing Stimulation Domains for Improved Well Completions in Gas ShalesCX(s) Applied: A9Date: 10/18/2010Location(s): Tulsa, OklahomaOffice(s): Fossil Energy, National Energy Technology Laboratory

  14. CX-006068: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Site Characterization and Environmental MonitoringCX(s) Applied: B3.1Date: 06/20/2011Location(s): Richland, WashingtonOffice(s): Office of River Protection-Richland Office

  15. CX-004218: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Recombinant Protein Expression, Purification, Characterization, and Immobilizations in Functionalized MaterialsCX(s) Applied: B3.12Date: 06/07/2010Location(s): New MexicoOffice(s): Sandia Site Office

  16. CX-004280: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Characterizing Stimulation Domains for Improved Well Completions in Gas ShalesCX(s) Applied: A9Date: 10/18/2010Location(s): Albuquerque, New MexicoOffice(s): Fossil Energy, National Energy Technology Laboratory

  17. CX-010847: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Characterization of Methanotrophs at the Old Integrated Demonstration Site, M Area CX(s) Applied: B3.1 Date: 07/23/2013 Location(s): South Carolina Offices(s): Savannah River Operations Office

  18. CX-012265: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Characterization of Pliocene and Miocene Formations in the Wilmington Graben, Offshore Los Angeles… CX(s) Applied: B3.1 Date: 06/26/2014 Location(s): California, California, California Offices(s): National Energy Technology Laboratory

  19. CX-010451: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Characterization of Pliocene and Miocene Formations in the Wilmington Graben, Offshore Los Angeles CX(s) Applied: B3.16 Date: 06/17/2013 Location(s): California Offices(s): National Energy Technology Laboratory

  20. CX-012266: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Characterization of Pliocene and Miocene Formations in the Wilmington Graben, Offshore Los Angeles… CX(s) Applied: A9 Date: 06/26/2014 Location(s): California Offices(s): National Energy Technology Laboratory

  1. CX-011573: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Predictive Characterization of Aging and Degradation of Reactor Materials in Extreme Environments CX(s) Applied: B3.6 Date: 11/14/2013 Location(s): Illinois Offices(s): Idaho Operations Office

  2. CX-012320: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Irradiated Materials Characterization Laboratory (IMCL) Equipment Installation Project CX(s) Applied: B1.31 Date: 05/21/2014 Location(s): Idaho Offices(s): Nuclear Energy

  3. CX-008297: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Characterization of Most Promising Carbon Capture and Sequestration Formations CX(s) Applied: B3.1 Date: 04/27/2012 Location(s): Colorado Offices(s): National Energy Technology Laboratory

  4. CX-005052: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Shoot 2-Dimensional Seismic at Characterization SiteCX(s) Applied: B3.1Date: 01/19/2011Location(s): Craig, ColoradoOffice(s): Fossil Energy, National Energy Technology Laboratory

  5. CX-009639: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Characterization, Investigation, and Environmental Monitoring Activities CX(s) Applied: B3.1 Date: 11/19/2012 Location(s): Tennessee, California, California, Virginia Offices(s): Oak Ridge Office

  6. CX-001229: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Characterization of Fluidized Beds by Pressure Fluctuation AnalysisCX(s) Applied: B3.6Date: 03/11/2010Location(s): IdahoOffice(s): Idaho Operations Office, Nuclear Energy

  7. CX-010257: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Characterizing Fracture Properties Using Resistivity measured at Different Frequencies CX(s) Applied: A9, B3.6 Date: 04/03/2013 Location(s): California Offices(s): Golden Field Office

  8. CX-011666: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Characterization of Building 690-N (Ford Building) and Ancillary Equipment CX(s) Applied: B3.1 Date: 12/12/2013 Location(s): South Carolina Offices(s): Savannah River Operations Office

  9. CX-010141: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Characterization of Process Solutions and Solids CX(s) Applied: B3.6 Date: 03/06/2013 Location(s): South Carolina Offices(s): Savannah River Operations Office

  10. CX-005869: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Waste Analysis Characterization Methods in the Analytical Development Wet Chemistry LabCX(s) Applied: B3.6Date: 03/08/2011Location(s): Aiken, South CarolinaOffice(s): Environmental Management, Savannah River Operations Office

  11. CX-002993: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Waste Analysis Characterization Methods in the Analytical Development Wet Chemistry LaboratoryCX(s) Applied: B3.6Date: 06/16/2010Location(s): Aiken, South CarolinaOffice(s): Environmental Management, Savannah River Operations Office

  12. CX-012599: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Metallurgical Laboratory (Met Lab) Hazardous Waste Management Facility (HWMF) Vadose Zone Remedial Characterization CX(s) Applied: B3.1Date: 41823 Location(s): South CarolinaOffices(s): Savannah River Operations Office

  13. CX-011682: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Characterization of SCO Sludge, Supernate, and Glass for Tank Farm Return CX(s) Applied: B3.6 Date: 12/02/2013 Location(s): South Carolina Offices(s): Savannah River Operations Office

  14. CX-012593: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Western Sector Characterization Soil Borings and Groundwater Monitoring Well Installation, Phase III CX(s) Applied: B3.1Date: 41829 Location(s): South CarolinaOffices(s): Savannah River Operations Office

  15. What if CLIQUE were fast? Maximum Cliques in Information Networks and Strong Components in Temporal Networks

    E-Print Network [OSTI]

    Rossi, Ryan A; Gebremedhin, Assefaw H; Patwary, Md Mostofa Ali

    2012-01-01

    Exact maximum clique finders have progressed to the point where we can investigate cliques in million-node social and information networks, as well as find strongly connected components in temporal networks. We use one such finder to study a large collection of modern networks emanating from biological, social, and technological domains. We show inter-relationships between maximum cliques and several other common network properties, including network density, maximum core, and number of triangles. In temporal networks, we find that the largest temporal strong components have around 20-30% of the vertices of the entire network. These components represent groups of highly communicative individuals. In addition, we discuss and improve the performance and utility of the maximum clique finder itself.

  16. Non-equilibrium electron transport in gases: Influence of magnetic fields on temporal and spatial relaxation

    SciTech Connect (OSTI)

    White, R. D.; Dujko, S.; Ness, K. F. [School of Mathematics, Physics and IT, James Cook University, Townsville, QLD (Australia); Li, B. [School of Physics, University of Sydney, NSW 2006 (Australia); Robson, R. E. [Research School of Physical Sciences, Australian National University, ACT 2600 (Australia); School of Mathematics, Physics and IT, James Cook University, Townsville, QLD (Australia)

    2006-12-01

    The ability to control the temporal and spatial relaxation of electron swarms in gases through application of an orthogonal magnetic field is examined via solutions of Boltzmann's equation. Multi-term solutions of Boltzmann's equation are presented for two specific applications: temporal relaxation in the time-dependent hydrodynamic regime, and spatial relaxation in the steady state non-hydrodynamic regime. We highlight the commonality of methods and techniques for handling the velocity dependence of the phase-space distribution function as well as their point of departure for treating the spatial dependence. We present results for model and real gases highlighting the explicit influence of the magnetic field on spatial and temporal relaxation characteristics, including the existence of transiently negative diffusion coefficients.

  17. Temporal Gillespie algorithm: Fast simulation of contagion processes on time-varying networks

    E-Print Network [OSTI]

    Vestergaard, Christian L

    2015-01-01

    Stochastic simulations are one of the cornerstones of the analysis of dynamical processes on complex networks, and are often the only accessible way to explore their behavior. The development of fast algorithms is paramount to allow large-scale simulations. The Gillespie algorithm can be used for fast simulation of stochastic processes, and variants of it have been applied to simulate dynamical processes on static networks. However, its adaptation to temporal networks remains non-trivial. We here present a temporal Gillespie algorithm that solves this problem. Our method is applicable to general Poisson (constant-rate) processes on temporal networks, stochastically exact, and up to orders of magnitude faster than traditional simulation schemes based on rejection sampling. We also show how it can be extended to simulate non-Markovian processes. The algorithm is easily applicable in practice, and as an illustration we detail how to simulate both Poissonian and non-Markovian models of epidemic spreading. Namely,...

  18. The media frame : the theory and practice of integrating a variety of production protocol in modern experimental temporal art

    E-Print Network [OSTI]

    Karre, Ross Patrick

    2009-01-01

    Professor Professor Steven Schick, Chair Amy Alexander2009 Professor Steven Schick, Chair Temporal art productiona piece written for Steven Schick, Justin DeHart, and me and

  19. Determining the neutrino mass hierarchy

    SciTech Connect (OSTI)

    Parke, Stephen J.; /Fermilab

    2006-07-01

    In this proceedings I review the physics that future experiments will use to determine the neutrino mass hierarchy.

  20. The temporal effect of traffic violations and accidents on accident occurrence 

    E-Print Network [OSTI]

    McKemie, Martha Susan

    1979-01-01

    THE TEMPORAL EFFECT OF TRAFFIC VIOLATIONS AND ACCIDENTS ON ACCIDENT OCCURRENCE A Thesis by . 1artha Susan McKemie Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE December 1979 Major Subject: Industrial Engineering THE TEMPORAL El'FECT OF TRAI'FIC VIOIATIONS AND ACCIDENTS ON XCCIDENT OCCURPEENCE A Thesis by Martha Susan McKemie Approved as to style and content by: / ~J' (Chairman of Commi tee...

  1. Complete Characterization of Quantum-Optical Processes

    E-Print Network [OSTI]

    Lvovsky, Alexander

    Complete Characterization of Quantum-Optical Processes Mirko Lobino, Dmitry Korystov, Connor characterization and assessment of processes that occur within quantum devices. We present a method for characterizing, with arbitrarily high accuracy, any quantum optical process. Our protocol recovers complete

  2. International Symposium on Site Characterization for CO2Geological Storage

    SciTech Connect (OSTI)

    Tsang, Chin-Fu

    2006-02-23

    Several technological options have been proposed to stabilize atmospheric concentrations of CO{sub 2}. One proposed remedy is to separate and capture CO{sub 2} from fossil-fuel power plants and other stationary industrial sources and to inject the CO{sub 2} into deep subsurface formations for long-term storage and sequestration. Characterization of geologic formations for sequestration of large quantities of CO{sub 2} needs to be carefully considered to ensure that sites are suitable for long-term storage and that there will be no adverse impacts to human health or the environment. The Intergovernmental Panel on Climate Change (IPCC) Special Report on Carbon Dioxide Capture and Storage (Final Draft, October 2005) states that ''Site characterization, selection and performance prediction are crucial for successful geological storage. Before selecting a site, the geological setting must be characterized to determine if the overlying cap rock will provide an effective seal, if there is a sufficiently voluminous and permeable storage formation, and whether any abandoned or active wells will compromise the integrity of the seal. Moreover, the availability of good site characterization data is critical for the reliability of models''. This International Symposium on Site Characterization for CO{sub 2} Geological Storage (CO2SC) addresses the particular issue of site characterization and site selection related to the geologic storage of carbon dioxide. Presentations and discussions cover the various aspects associated with characterization and selection of potential CO{sub 2} storage sites, with emphasis on advances in process understanding, development of measurement methods, identification of key site features and parameters, site characterization strategies, and case studies.

  3. Determining the Volatility of Ultrafine (UF) PM Emissions from CNG Vehicles

    E-Print Network [OSTI]

    Determining the Volatility of Ultrafine (UF) PM Emissions from CNG Vehicles Contract#: 500. Limited research has been done to characterize compressed natural gas (CNG) mass emissions and practically no work focused on the determination of the size- segregated volatility of UF particles from CNG engines

  4. Expedited Site Characterization Geophysics: Geophysical Methods and Tools for Site Characterization

    E-Print Network [OSTI]

    Goldstein, N.E.

    2009-01-01

    Site Characterization Geophysics CONTENTS INTRODUCTIONSite Characterization Geophysics SELF-POTENTIAL Referencesand Environmental Geophysics, S. H. Ward, ed. (Soc. Expl.

  5. Cryogenic characterization of Josephson junctions

    E-Print Network [OSTI]

    Brown, Keith Andrew

    2006-01-01

    Cryogenic characterization is a crucial part of understanding the behavior of low-temperature quantum electronics. Reliable device testing provides the feedback to fabrication process development, facilitating the rapid ...

  6. 324 Building Baseline Radiological Characterization

    SciTech Connect (OSTI)

    R.J. Reeder, J.C. Cooper

    2010-06-24

    This report documents the analysis of radiological data collected as part of the characterization study performed in 1998. The study was performed to create a baseline of the radiological conditions in the 324 Building.

  7. ON THE TEMPORAL EVOLUTION OF THE DISK COUNTERPART OF TYPE II SPICULES IN THE QUIET SUN

    SciTech Connect (OSTI)

    Sekse, D. H.; Rouppe van der Voort, L.; De Pontieu, B.

    2013-02-20

    The newly established type II spicule has been speculated to provide enough hot plasma to play an important role in the mass loading and heating of the solar corona. With the identification of rapid blueshifted excursions (RBEs) as the on-disk counterpart of type II spicules we have analyzed three different high-quality timeseries with the CRisp Imaging SpectroPolarimeter (CRISP) at the Swedish Solar Telescope on La Palma and subjected to an automated detection routine to detect a large number of RBEs for statistical purposes. Our observations are of a quiet-Sun region at disk center and we find lower Doppler velocities, 15-40 km s{sup -1}, and Doppler widths, 2-15 km s{sup -1}, of RBEs than in earlier coronal hole studies, 30-50 km s{sup -1} and 7-23 km s{sup -1}, respectively. In addition, we examine the spatial dependence of Doppler velocities and widths along the RBE axis and conclude that there is no clear trend to this over the field of view or in individual RBEs in the quiet Sun at disk center. These differences with previous coronal hole studies are attributed to the more varying magnetic field configuration in quiet-Sun conditions. Using an extremely high-cadence data set has allowed us to improve greatly on the determination of lifetimes of RBEs, which we find to range from 5 to 60 s with an average lifetime of 30 s, as well as the transverse motions in RBEs, with transverse velocities up to 55 km s{sup -1} and averaging 12 km s{sup -1}. Furthermore, our measurements of the recurrence rates of RBEs provide important new constraints on coronal heating by spicules. We also see many examples of a sinusoidal wave pattern in the transverse motion of RBEs with periods averaging 54 s and amplitudes from 21.5 to 129 km which agrees well with previous studies of wave motion in spicules at the limb. We interpret the appearance of RBEs over their full length within a few seconds as the result of a combination of three kinds of motions as is earlier reported for spicules. Finally, we look at the temporal connection between H{alpha} and Ca II 8542 RBEs and find that Ca II 8542 RBEs in addition to being located closer to the footpoint also appear before the H{alpha} RBEs. This connection between Ca II 8542 and H{alpha} supports the idea that heating is occurring in spicules and contributes more weight to the prominence of spicules as a source for heating and mass loading of the corona.

  8. NMR characterization of thin films

    DOE Patents [OSTI]

    Gerald, II, Rex E. (Brookfield, IL); Klingler, Robert J. (Glenview, IL); Rathke, Jerome W. (Homer Glen, IL); Diaz, Rocio (Chicago, IL); Vukovic, Lela (Westchester, IL)

    2008-11-25

    A method, apparatus, and system for characterizing thin film materials. The method, apparatus, and system includes a container for receiving a starting material, applying a gravitational force, a magnetic force, and an electric force or combinations thereof to at least the starting material, forming a thin film material, sensing an NMR signal from the thin film material and analyzing the NMR signal to characterize the thin film of material.

  9. NMR characterization of thin films

    DOE Patents [OSTI]

    Gerald II, Rex E.; Klingler, Robert J.; Rathke, Jerome W.; Diaz, Rocio; Vukovic, Lela

    2010-06-15

    A method, apparatus, and system for characterizing thin film materials. The method, apparatus, and system includes a container for receiving a starting material, applying a gravitational force, a magnetic force, and an electric force or combinations thereof to at least the starting material, forming a thin film material, sensing an NMR signal from the thin film material and analyzing the NMR signal to characterize the thin film of material.

  10. Low Temperature Performance Characterization | Department of...

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

    Characterization Low Temperature Performance Characterization Presentation from the U.S. DOE Office of Vehicle Technologies "Mega" Merit Review 2008 on February 25, 2008 in...

  11. Focal Fish Species Focal Fish Species Characterization

    E-Print Network [OSTI]

    Focal Fish Species Focal Fish Species Characterization APPENDIX I This chapter describes the fish selected the focal species based on their significance and ability to characterize the health

  12. Expedited Site Characterization | The Ames Laboratory

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

    Expedited Site Characterization Working to save time and money in the characterization of DOE sites, Ames Lab scientists are advancing adoption of innovative technologies along...

  13. Plant Phenotype Characterization System | Department of Energy

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

    Plant Phenotype Characterization System Plant Phenotype Characterization System New X-Ray Technology Accelerates Plant Research The ability to analyze plant root structure and...

  14. DISSERTATION DEVICE CHARACTERIZATION OF CADMIUM TELLURIDE PHOTOVOLTAICS

    E-Print Network [OSTI]

    Sites, James R.

    DISSERTATION DEVICE CHARACTERIZATION OF CADMIUM TELLURIDE PHOTOVOLTAICS Submitted by Russell M Reserved #12;ABSTRACT DEVICE CHARACTERIZATION OF CADMIUM TELLURIDE PHOTOVOLTAICS Thin-film photovoltaics

  15. Waste Characterization, Reduction, and Repackaging Facility ...

    Office of Environmental Management (EM)

    Operations, EP-WCRR-WO-DOP-0233 Waste Characterization, Reduction, and Repackaging Facility (WCRRF) Waste Characterization Glovebox Operations, EP-WCRR-WO-DOP-0233 The documents...

  16. Assembly and electrical transport characterization of nanostructures...

    Office of Scientific and Technical Information (OSTI)

    Conference: Assembly and electrical transport characterization of nanostructures. Citation Details In-Document Search Title: Assembly and electrical transport characterization of...

  17. Implantation, Activation, Characterization and Prevention/Mitigation...

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

    Activation, Characterization and PreventionMitigation of Internal Short Circuits in Lithium-Ion Cells Implantation, Activation, Characterization and PreventionMitigation of...

  18. Materials Characterization Capabilities at the HTML: Surface...

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

    Materials Characterization Capabilities at the HTML: SurfaceSub-surface dislocation density analysis of forming samples using advanced characterization techniques 2011 DOE...

  19. Characterization of Light Scattering in Transparent Polycrystalline Laser Ceramics

    E-Print Network [OSTI]

    Sharma, Saurabh

    2013-01-01

    Loss ………………………………………..…… 7 Characterization of BulkImages, the utility of characterization techniques towardsapplicable towards the characterization of any transparent

  20. Characterizing cemented TRU waste for RCRA hazardous constituents

    SciTech Connect (OSTI)

    Yeamans, D.R.; Betts, S.E.; Bodenstein, S.A. [and others

    1996-06-01

    Los Alamos National Laboratory (LANL) has characterized drums of solidified transuranic (TRU) waste from four major waste streams. The data will help the State of New Mexico determine whether or not to issue a no-migration variance of the Waste Isolation Pilot Plant (WIPP) so that WIPP can receive and dispose of waste. The need to characterize TRU waste stored at LANL is driven by two additional factors: (1) the LANL RCRA Waste Analysis Plan for EPA compliant safe storage of hazardous waste; (2) the WIPP Waste Acceptance Criteria (WAC) The LANL characterization program includes headspace gas analysis, radioassay and radiography for all drums and solids sampling on a random selection of drums from each waste stream. Data are presented showing that the only identified non-metal RCRA hazardous component of the waste is methanol.

  1. Results of Detailed Hydrologic Characterization Tests - Fiscal Year 2000

    SciTech Connect (OSTI)

    Spane, Frank A.; Thorne, Paul D.; Newcomer, Darrell R.

    2001-05-15

    This report provides the resluts of detailed hydrologic characterization tests conducted within eleven Hanford Site wells during fiscal year 2000. Detailed characterization tests performed included groundwater-flow characterization; barometric response evaluation; slug tests; single-well tracer tests; constant-rate pumping tests; and in-well, vertical flow tests. Hydraulic property estimates obtained from the detailed hydrologic tests include transmissivity; hydraulic conductivity; specific yield; effective porosity; in-well, lateral flow velocity; aquifer-flow velocity; vertical distribution of hydraulic conductivity (within the well-screen section); and in-well, verticla flow velocity. In addition, local groundwater-flow characteristics (i.e., hydraulic gradient and flow direction) were determined for four sites where detailed well testing was performed.

  2. Results of Detailed Hydrologic Characterization Tests - Fiscal Year 1999

    SciTech Connect (OSTI)

    Spane, Frank A.; Thorne, Paul D.; Newcomer, Darrell R.

    2001-01-19

    This report provides the results of detailed hydrologic characterization tests conducted within newly constructed Hanford Site wells during FY 1999. Detailed characterization tests performed during FY 1999 included: groundwater flow characterization, barometric response evaluation, slug tests, single-well tracer tests, constant-rate pumping tests, and in-well vertical flow tests. Hydraulic property estimates obtained from the detailed hydrologic tests include: transmissivity, hydraulic conductivity, specific yield, effective porosity, in-well lateral flow velocity, aquifer flow velocity, vertical distribution of hydraulic conductivity (within the well-screen section) and in-well vertical flow velocity. In addition, local groundwater flow characteristics (i.e., hydraulic gradient and flow direction) were determined for four sites where detailed well testing was performed.

  3. Characterization of Savannah River Plant waste glass

    SciTech Connect (OSTI)

    Plodinec, M J

    1985-01-01

    The objective of the glass characterization programs at the Savannah River Laboratory (SRL) is to ensure that glass containing Savannah River Plant high-level waste can be permanently stored in a federal repository, in an environmentally acceptable manner. To accomplish this objective, SRL is carrying out several experimental programs, including: fundamental studies of the reactions between waste glass and water, particularly repository groundwater; experiments in which candidate repository environments are simulated as accurately as possible; burial tests of simulated waste glass in candidate repository geologies; large-scale tests of glass durability; and determination of the effects of process conditions on glass quality. In this paper, the strategy and current status of each of these programs is discussed. The results indicate that waste packages containing SRP waste glass will satisfy emerging regulatory criteria.

  4. Inverse determination of effective mechanical properties of adhesive bondlines

    E-Print Network [OSTI]

    Hass, Philipp; Mendoza, Miller; Herrmann, Hans J; Niemz, Peter

    2015-01-01

    A new approach for determining effective mechanical bondline properties using a combined experimental-numerical modal analysis technique is proposed. After characterizing clear spruce wood boards, an adhesive layer is applied to the boards surfaces. The shift of the eigenfrequencies resulting from the adhesive layer together with information on the bondline geometry can then be used to inversely determine the mechanical properties of the adhesive layer using Finite Element Models. The calculated values for clear wood as well as for the adhesive layer lie within reasonable ranges, thus demonstrating the methods potential.

  5. Beam Characterization at the Neutron Radiography Facility

    SciTech Connect (OSTI)

    Sarah Morgan; Jeffrey King

    2013-01-01

    The quality of a neutron imaging beam directly impacts the quality of radiographic images produced using that beam. Fully characterizing a neutron beam, including determination of the beam’s effective length-to-diameter ratio, neutron flux profile, energy spectrum, image quality, and beam divergence, is vital for producing quality radiographic images. This project characterized the east neutron imaging beamline at the Idaho National Laboratory Neutron Radiography Reactor (NRAD). The experiments which measured the beam’s effective length-to-diameter ratio and image quality are based on American Society for Testing and Materials (ASTM) standards. An analysis of the image produced by a calibrated phantom measured the beam divergence. The energy spectrum measurements consist of a series of foil irradiations using a selection of activation foils, compared to the results produced by a Monte Carlo n-Particle (MCNP) model of the beamline. Improvement of the existing NRAD MCNP beamline model includes validation of the model’s energy spectrum and the development of enhanced image simulation methods. The image simulation methods predict the radiographic image of an object based on the foil reaction rate data obtained by placing a model of the object in front of the image plane in an MCNP beamline model.

  6. Second ILAW Site Borehole Characterization Plan

    SciTech Connect (OSTI)

    SP Reidel

    2000-08-10

    The US Department of Energy's Hanford Site has the most diverse and largest amounts of radioactive tank waste in the US. High-level radioactive waste has been stored at Hanford since 1944. Approximately 209,000 m{sup 3} (54 Mgal) of waste are currently stored in 177 tanks. Vitrification and onsite disposal of low-activity tank waste (LAW) are embodied in the strategy described in the Tri-Party Agreement. The tank waste is to be retrieved, separated into low- and high-level fractions, and then immobilized. The low-activity vitrified waste will be disposed of in the 200 East Area of the Hanford Site. This report is a plan to drill and characterize the second borehole for the Performance Assessment. The first characterization borehole was drilled in 1998. The plan describes data collection activities for determining physical and chemical properties of the vadose zone and saturated zone on the northeast side of the proposed disposal site. These data will then be used in the 2005 Performance Assessment.

  7. Spatial and Temporal Impacts on Water Consumption in Texas from Shale Gas Development and Use

    E-Print Network [OSTI]

    in water consumption if the increased natural gas production is used at natural gas combined cycle power water consumption in natural gas production have focused on quantifying the total water used4Spatial and Temporal Impacts on Water Consumption in Texas from Shale Gas Development and Use Adam

  8. OVERVIEW OF SELECTED SURROGATE TECHNOLOGIES FOR HIGH-TEMPORAL RESOLUTION SUSPENDED-SEDIMENT MONITORING

    E-Print Network [OSTI]

    OVERVIEW OF SELECTED SURROGATE TECHNOLOGIES FOR HIGH- TEMPORAL RESOLUTION SUSPENDED such surrogate technology, and the first to be sanctioned by the U.S. Geological Survey for use in producing data in the National Water Information System. Other technologies, including laser-diffraction, digital photo

  9. Concurrent Probabilistic Temporal Planning : Initial Results Mausam and Daniel S. Weld

    E-Print Network [OSTI]

    Concurrent Probabilistic Temporal Planning : Initial Results Mausam and Daniel S. Weld Dept of Computer Science and Engineering University of Washington Seattle, WA-98195 {mausam,weld & Weld 2004)) to efficiently solve concurrent MDPs with actions of unit length. The focus of this paper

  10. Concurrent Probabilistic Temporal Planning : Initial Results Mausam and Daniel S. Weld

    E-Print Network [OSTI]

    Mausam

    Concurrent Probabilistic Temporal Planning : Initial Results Mausam and Daniel S. Weld Dept of Computer Science and Engineering University of Washington Seattle, WA­98195 {mausam,weld & Weld 2004)) to efficiently solve concurrent MDPs with actions of unit length. The focus of this paper

  11. Spatial and temporal patterns of carbon emissions from forest fires in China from 1950 to 2000

    E-Print Network [OSTI]

    Spatial and temporal patterns of carbon emissions from forest fires in China from 1950 to 2000 hydrocarbons) from forest fires in China for the time period from 1950 to 2000 by using a combination of remote of carbon emissions from forest fires in China from 1950 to 2000, J. Geophys. Res., 111, D05313, doi:10

  12. APPLIED ISSUES Spatial and temporal impacts of a diesel fuel spill

    E-Print Network [OSTI]

    McIntosh, Angus

    APPLIED ISSUES Spatial and temporal impacts of a diesel fuel spill on stream invertebrates DAVID A, Cornell University, Ithaca, New York, U.S.A. SUMMARY 1. We assessed the effects of a 26 500 L diesel fuel, but the degree of dominance was twice as large at the impact site. 5. We concluded that the diesel fuel spill

  13. Point-to-Point Car Racing: an Initial Study of Evolution Versus Temporal Difference Learning

    E-Print Network [OSTI]

    Togelius, Julian

    Point-to-Point Car Racing: an Initial Study of Evolution Versus Temporal Difference Learning Simon, jtogel}@essex.ac.uk Abstract-- This paper considers variations on an extremely simple form of car racing-evaluation neural networks, and these were greatly superior to human drivers. Keywords: Car racing, reinforcement

  14. Analysis of hydraulic tomography using temporal moments of drawdown recovery data

    E-Print Network [OSTI]

    Daniels, Jeffrey J.

    Analysis of hydraulic tomography using temporal moments of drawdown recovery data Junfeng Zhu 2006. [1] Transient hydraulic tomography (THT) is a potentially cost-effective and high- resolution technique for mapping spatial distributions of the hydraulic conductivity and specific storage in aquifers

  15. 4-Dimensional Local Spatio-Temporal Features for Human Activity Recognition

    E-Print Network [OSTI]

    Parker, Lynne E.

    human activities, Latent Dirichlet Allocation with Gibbs sampling is used as the classifier. Experiments4-Dimensional Local Spatio-Temporal Features for Human Activity Recognition Hao Zhang and Lynne E. Abstract-- Recognizing human activities from common color image sequences faces many challenges

  16. Anomaly Detection Using Temporal Data Mining in a Smart Home Environment

    E-Print Network [OSTI]

    Cook, Diane J.

    Anomaly Detection Using Temporal Data Mining in a Smart Home Environment V. Jakkula and D.J. Cook of smart home technologies, many people with cognitive and physical disabilities can lead independent lives to automatically learn models of resident behaviour in a smart home, and that the results can be used to perform

  17. Design and Implementation of a Temporal Extension of SQL Cindy X. Chen

    E-Print Network [OSTI]

    Chen, Cindy

    point-based temporal queries and data model into equivalent internal representations based on time Computer Science Department University of California at Los Angeles Los Angeles, CA 90095, U.S.A. jkong@cs.ucla.edu Carlo Zaniolo Computer Science Department University of California at Los Angeles Los Angeles, CA 90095

  18. 4D Computed Tomography Reconstruction from Few-Projection Data via Temporal Non-local

    E-Print Network [OSTI]

    Zakharov, Vladimir

    4D Computed Tomography Reconstruction from Few-Projection Data via Temporal Non, University of California, Los Angeles, Los Angeles, CA 90095-1555, USA 3 Department of Mathematics be reconstructed simultaneously based on extremely under-sampled x-ray projections. Our algorithm is validated

  19. Water Detection through Spatio-Temporal Invariant Descriptors Pascal Mettesa,1,

    E-Print Network [OSTI]

    Veltkamp, Remco

    Water Detection through Spatio-Temporal Invariant Descriptors Pascal Mettesa,1, , Robby T. Tana,2, the Netherlands Abstract In this work, we aim to segment and detect water in videos. Water detection is beneficial recognition. Here, we analyze several motion properties of water. First, we describe a video pre

  20. Spatial pattern and temporal dynamics of northern bobwhite abundance and agricultural landuse, and potential casual factors 

    E-Print Network [OSTI]

    Okay, Atiye Zeynep

    2006-04-12

    recognizable periods in the spatial and temporal dynamics of NBW abundance between 1920 and 1990. Severe weather conditions and habitat loss due to land use change appeared to be the most important factors influencing the long-term trends and spatial patterns...

  1. Multivariate spatial-temporal modeling and prediction of speciated fine particles 1

    E-Print Network [OSTI]

    Reich, Brian J.

    framework to speciated PM2.5 data in the United States for the year 2004. Key words: Air pollution; Bayesian.5) is an atmospheric pollutant that has been linked to serious health problems, including mortality. PM2.5 has five-temporal epidemiological stud- ies of the association of these pollutants and adverse health effects. We introduce

  2. Nordic Journal of Computing 9(2002), 145188. TEMPORAL CONCURRENT CONSTRAINT

    E-Print Network [OSTI]

    Valencia, Frank D.

    2002-01-01

    on this semantics, we develop a proof system for linear-temporal properties of these processes. The expressiveness of ntcc is illustrated by modeling cells, timed systems such as RCX controllers, multi-agent systems programming, calculi for concurrency, pro- gram specification, timed systems, reactive systems, multi

  3. Author's personal copy Temporal and spatial trends of total petroleum hydrocarbons in the seawater

    E-Print Network [OSTI]

    Ma, Lena

    (Zhou et al., 2004). Petroleum hydrocarbons as priority organic contaminants are extremely complexAuthor's personal copy Temporal and spatial trends of total petroleum hydrocarbons in the seawater-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China c Soil and Water Science Department

  4. Research papers Temporal and spatial variability in fall storm induced sediment resuspension

    E-Print Network [OSTI]

    Research papers Temporal and spatial variability in fall storm induced sediment resuspension February 2011 Received in revised form 20 July 2012 Accepted 3 August 2012 Keywords: Sediment resuspension a b s t r a c t Storm-driven sediment resuspension is an episodic process that is an important

  5. Temporal controls on global dust emissions: The role of surface S. Engelstaedter1

    E-Print Network [OSTI]

    Washington, Richard

    in the atmosphere will not be realistic either. While climatically important atmospheric gases such as CO2 are well with constraining dust emissions spatially came with the `preferred source' concept following analysis of the firstTemporal controls on global dust emissions: The role of surface gustiness S. Engelstaedter1 and R

  6. Simulated Longwave Clearsky Irradiance over the Ocean: Spatial and Temporal Variability 19791993

    E-Print Network [OSTI]

    Allan, Richard P.

    Simulated Long­wave Clear­sky Irradiance over the Ocean: Spatial and Temporal Variability 1979.: OA8038 First author: Allan 1 Simulated Long­wave Clear­sky Irradiance over the Ocean: Spatial­wave irradiances calculated by a wide­band radiation code applied to the ECMWF re­analysis are used to investigate

  7. A Finger on the Pulse: Temporal Rhythms and Information Seeking in Medical Work

    E-Print Network [OSTI]

    Dourish,Paul

    A Finger on the Pulse: Temporal Rhythms and Information Seeking in Medical Work Madhu Reddy and Paul Dourish Information and Computer Science University of California Irvine Irvine, CA 92697-3425 USA {mreddy, jpd}@ics.uci.edu ABSTRACT Most cooperative work takes place in information-rich environments

  8. Optimizing OID Indexing Cost in Temporal Object-Oriented Database Systems

    E-Print Network [OSTI]

    Optimizing OID Indexing Cost in Temporal Object-Oriented Database Systems Kjetil N rvag and Kjell access cost and optimal use of memory for index page bu er and OD cache, with di erent access patterns in the context of general secondary index access cost and index entry caching. Keywords: Index organization

  9. Stochastic Generation of Synthetic Precipitation Time Series with High Temporal and Spatial Resolution for Engineering Practice

    E-Print Network [OSTI]

    Cirpka, Olaf Arie

    Stochastic Generation of Synthetic Precipitation Time Series with High Temporal and Spatial.Brommundt@iws.uni-stuttgart.de Introduction The stochastic precipitation time series generator, NiedSim, has been developed and installed been generated. In the year 2004 NiedSim was set up for Hessen and Rheinland-Pfalz. The total project

  10. A Kernel-Based Spatio-Temporal Dynamical Model for Nowcasting Weather Radar Reflectivities

    E-Print Network [OSTI]

    A Kernel-Based Spatio-Temporal Dynamical Model for Nowcasting Weather Radar Reflectivities Ke Xu of the technique and its potential for nowcasting weather radar reflectivities. Key Words: Bayesian, dilation to nowcasting weather radar reflectivities into two general categories. The first is the use of simple

  11. Local Likelihood Modeling of Temporal Text Streams Guy Lebanon lebanon@stat.purdue.edu

    E-Print Network [OSTI]

    Lebanon, Guy

    zhao18@stat.purdue.edu Department of Statistics, Purdue University ­ West Lafayette, IN 47907 Abstract containing a temporal sequence of Reuters news stories. 1. Introduction Time stamped documents such as news the Reuters RCV1 dataset (Lewis et al., 2004) which contains over 800,000 news sto- ries gathered in a period

  12. A Tool for Transforming Conceptual Schemas of Spatio-Temporal Databases with Multiple Representation

    E-Print Network [OSTI]

    Libre de Bruxelles, Université

    of a physical schema for a relational or an object-relational DBMS. However, when developing spatial or temporal are then automatically translated into the language supported by the target GIS and/or DBMS software (e.g., SQL schema- ware, and a Wrapper module that generates the data struc- tures in the language of the GIS and/or DBMS

  13. A Temporal Approach to Managing Schema Evolution in Object Database Systems

    E-Print Network [OSTI]

    Szafron, Duane

    incremental design and experimentation, the evolutionary histories of the schema objects should be traceable. The approach described in this work is conducted within the context of the TIGUKAT temporal DBMS. However, the results reported here extend to any ODBMS that uses time to model evolution histories of objects. Schema

  14. Using XML to Build Efficient Transaction-Time Temporal Database Systems on Relational Databases

    E-Print Network [OSTI]

    Zaniolo, Carlo

    (virtual) representations of the database history, (b) XQuery to express powerful temporal queries with time [1, 2]; unfortunately, DBMS vendors and standard groups have not moved aggressively to extend, we propose a very useful generalization of this idea, by showing that the evolution history of a rela

  15. FAST SPATIAL LAYER MODE DECISION BASED ON TEMPORAL LEVELS IN H.264/AVC SCALABLE EXTENSION

    E-Print Network [OSTI]

    Chang, Pao-Chi

    FAST SPATIAL LAYER MODE DECISION BASED ON TEMPORAL LEVELS IN H.264/AVC SCALABLE EXTENSION Yen layer coding. A fast mode decision algorithm that reduces the candidate modes in motion estimation can a little R-D loss is desirable. Recently, many kinds of fast mode decision schemes have been developed

  16. An Integrated Framework for Spatio-Temporal-Textual Search and Mining

    E-Print Network [OSTI]

    Cortes, Corinna

    An Integrated Framework for Spatio-Temporal-Textual Search and Mining Bingsheng Wang1 , Haili Dong1 and implement a search and mining system that adapts to the needs of both desktop and mobile users. Although there exist search engines [2] and pattern mining techniques [3] for crime incidents and terrorism threats

  17. Temporal and spatial variation in age-specific survival rates of a long-lived mammal,

    E-Print Network [OSTI]

    Aberdeen, University of

    for endangered Hawaiian monk seals (Monachus schauinslandi ) based on capture­recapture analyses of more than 85: Hawaiian monk seal; life history; survival; senescence; spatial variability; temporal variability 1 represent larger-scale patterns across the species range. The Hawaiian monk seal (Monachus schauinslandi

  18. Evolution-cast: Temporal Evolution in Wireless Social Networks and Its Impact on Capacity

    E-Print Network [OSTI]

    Wang, Xinbing

    1 Evolution-cast: Temporal Evolution in Wireless Social Networks and Its Impact on Capacity Luoyi, the corresponding capacity is significantly impacted by both social relations and network evolution. In particular with each other through social relations but employ transmission via wireless communications. The network

  19. Temporal profile of optical transmission probe for pulsed-laser heating of amorphous silicon films

    E-Print Network [OSTI]

    Leung, Pui-Tak "Peter"

    Temporal profile of optical transmission probe for pulsed-laser heating of amorphous silicon films is studied. Experimental optical transmission data are compared with heat transfer modeling results; accepted for publication 4 June 1992) The transient temperature field development during heating

  20. Vision Research 40 (2000) 30733081 Spatial and temporal properties of light adaptation in the rod

    E-Print Network [OSTI]

    He, Sheng

    2000-01-01

    Vision Research 40 (2000) 3073­3081 Spatial and temporal properties of light adaptation in the rod of light adaptation in the rod system we presented a uniform flickering background, sinusoidally modulated that receptor adap- tation is not important in humans, and that light- adapted rods retain their full dark-adapted

  1. Spatio-Temporal Decision Support System for Natural Crisis Management with TweetComP1

    E-Print Network [OSTI]

    Middleton, Stuart E.

    to a Tsunami warning centre. However, social media streams also bear risks: such data has variable quality Tsunami warning control room engineers of the value social media reports offer to a situation pictureSpatio-Temporal Decision Support System for Natural Crisis Management with TweetComP1 Stuart E

  2. Spatio-Temporal Decision Support System for Natural Crisis Management with TweetComP1

    E-Print Network [OSTI]

    Middleton, Stuart E.

    a system for tsunami detection and early warning, developed in the project Collaborative, Complex1 Spatio-Temporal Decision Support System for Natural Crisis Management with TweetComP1 Zielinski, Andrea Fraunhofer Institute of Optronics, System Technologies and Image Exploitation Karlsruhe, Germany

  3. Temporal integration of focus position signal during compensation for pursuit in optic flow

    E-Print Network [OSTI]

    Krekelberg, Bart

    Temporal integration of focus position signal during compensation for pursuit in optic flow Center in optic flow that specifies heading. Concurrent smooth pursuit causes distortion of the retinal flow on optic flow perception has received little attention. Here we separated the effects of velocity and gaze

  4. MULTI-SET MULTI-TEMPORAL CANONICAL ANALYSIS OF PSORIASIS Technical University of Denmark

    E-Print Network [OSTI]

    MULTI-SET MULTI-TEMPORAL CANONICAL ANALYSIS OF PSORIASIS IMAGES ÓÑ Þ½ Å Ð ØØ ¾ Æ Ð× Ò½ Ö× ÓÐÐ different time series collected from psoriasis patients dur- ing 4 different sessions is conducted analysis, im- age registration, psoriasis 1. INTRODUCTION One of the main problems in the treatment

  5. Temporal Models for Groundwater Level Prediction in Regions of Maharashtra Dissertation Report

    E-Print Network [OSTI]

    Sohoni, Milind

    Temporal Models for Groundwater Level Prediction in Regions of Maharashtra Dissertation Report In this project work we perform analysis of groundwater level data in three districts of Maha- rashtra - Thane of these districts and developed seasonal models to represent the groundwater be- havior. Three different type

  6. Visualization Support for Fusing Relational, Spatio-Temporal Data: Building Career Histories

    E-Print Network [OSTI]

    Blythe, Jim

    Visualization Support for Fusing Relational, Spatio-Temporal Data: Building Career Histories Jim elastic pipes, and the second on wave propagation. We discuss both types of visualizations in the context will draw examples from the domain of building career histories for scientists. The goal is to fuse in

  7. A Temporal Motif Mining Approach to Unsupervised Energy Disaggregation: Applications to Residential and Commercial Buildings

    E-Print Network [OSTI]

    Ramakrishnan, Naren

    every device in a building. The ensu- ing computational problem is to disaggregate total energy us- ageA Temporal Motif Mining Approach to Unsupervised Energy Disaggregation: Applications to Residential Sustainable Ecosystems Research Group, HP Labs, Palo Alto, CA 94304 Abstract Non-intrusive appliance load

  8. An electrophysiological analysis of contextual and temporal constraints on parafoveal word processing

    E-Print Network [OSTI]

    Kutas, Marta

    An electrophysiological analysis of contextual and temporal constraints on parafoveal word During natural reading, parafoveal information is processed to some degree. Although isolated words can in which volunteers read sentences presented word by word at fixation, flanked bilaterally by the next word

  9. Temporal Changes in Wind as Objects for Evaluating Mesoscale Numerical Weather Prediction

    E-Print Network [OSTI]

    Knievel, Jason Clark

    Temporal Changes in Wind as Objects for Evaluating Mesoscale Numerical Weather Prediction DARAN L changes in simulated and observed 10-m (AGL) winds. The method is demon- strated on a 1-yr collection of 1-day simulations by the fifth-generation Pennsylvania State University­ National Center for Atmospheric

  10. Temporal shaping of nanosecond CO/sub 2/ laser pulses in multiphoton saturable absorbers

    SciTech Connect (OSTI)

    Haglund, R.F. Jr.

    1981-01-01

    It was shown that substantial temporal distortion of nanosecond 10.6 ..mu..m laser pulses occurs in traversing multiphoton saturable absorbers. The risetime and pulse delay effects appear to depend both on fluence and wavelength, and to be qualitatively consistent with predictions of a simple two-level absorption model.

  11. Neurobiology of Disease Spatial and Temporal Properties of Tic-Related Neuronal

    E-Print Network [OSTI]

    Bar-Gad, Izhar

    Neurobiology of Disease Spatial and Temporal Properties of Tic-Related Neuronal Activity of Life Sciences, Bar- Ilan University, Ramat-Gan 52900, Israel Motor tics are involuntary brief muscle the pathophysiology of tics is still largely unknown, multiple lines of evidence suggest the involvement

  12. A Microfluidic Device for Temporally Controlled Gene Expression and Long-Term Fluorescent Imaging in

    E-Print Network [OSTI]

    Siggia, Eric

    A Microfluidic Device for Temporally Controlled Gene Expression and Long-Term Fluorescent Imaging of the cell cycle. Over the past ten years, microfluidic techniques in cell biology have emerged that allow a microfluidic flow cell to grow Saccharomyces Cerevisiae for more than 8 generations (

  13. Analysis of the Temporal Evolution of Thermal Conductivity in Alumina-Water Nanofluid 

    E-Print Network [OSTI]

    Fortenberry, Stephen

    2009-09-30

    of several months. This corresponded to a change in the thermal conductivity enhancement realized due to the suspension of nanoparticles in fluid from an initial value of 11.2% to a final value of 7.2%. Temporal evolution of the nanofluid’s thermal...

  14. Automatic Selection of Mask and Arterial Phase Images for Temporally Resolved MR Digital

    E-Print Network [OSTI]

    Zabih, Ramin

    Automatic Selection of Mask and Arterial Phase Images for Temporally Resolved MR Digital Subtraction Angiography Junhwan Kim,1* Martin R. Prince,2 Ramin Zabih,1,2 Jeff Bezanson,2 Richard Watts,2 Hale angiography (CEMRA) has become a routine clinical tool for pretreat- ment mapping of vasculature (1). Among

  15. Two ERP studies on Dutch temporal semantics Giosu`e Baggio

    E-Print Network [OSTI]

    Amsterdam, University of

    Two ERP studies on Dutch temporal semantics Giosu`e Baggio #12;Abstract Although meaning has been to make sense of empirical data. In this thesis we try to fill this gap presenting the results of two ERP memory, have different ERP correlates. In brief, our work suggests that the use of formal semantics

  16. Temporal, Spatial, and Constraint Handling in the Conceptual Programming Environment, CP

    E-Print Network [OSTI]

    Hartley, Roger

    Temporal, Spatial, and Constraint Handling in the Conceptual Programming Environment, CP Heather D)646-1218 email: hdp@dnmsu.edu and rth@nmsu.edu ABSTRACT The Conceptual Programming environment, CP, being-world, scientific analysis (strong) applications. CP is based upon a graphical methodology of visualization derived

  17. Emergence of temporal-pattern sensitive neurons in the midbrain of weakly electric fish Gymnarchus niloticus

    E-Print Network [OSTI]

    Kawasaki, Masashi

    Emergence of temporal-pattern sensitive neurons in the midbrain of weakly electric fish Gymnarchus fish, Gymnarchus niloticus, to two stimulus parameters that are critical for its behavior the jamming frequencies of fish's own electric organ and that of a neighbor's. The second parameter is the spatial

  18. IEEE TRANSACTIONS ON POWER SYSTEMS 1 A Spatio-temporal Analysis Approach for

    E-Print Network [OSTI]

    Zhang, Junshan

    of Wind Farm Generation Miao He, Member, IEEE, Lei Yang, Member, IEEE, Junshan Zhang, Fellow, IEEE, and Vijay Vittal, Fellow, IEEE Abstract--In this paper, short-term forecast of wind farm generation is investigated by applying spatio-temporal analysis to extensive measurement data collected from a large wind

  19. Evolution versus Temporal Difference Learning for Learning to Play Ms. Pac-Man

    E-Print Network [OSTI]

    Lucas, Simon M.

    of a system to learn to play Ms. Pac-Man. For this study Ms. Pac-Man provides a game of appropriate complexityEvolution versus Temporal Difference Learning for Learning to Play Ms. Pac-Man Peter Burrow-layer perceptrons. I. INTRODUCTION Ms. Pac-Man is a classic computer game which has the advantage of being complex

  20. Temporal dynamics of blue and green virtual water trade networks N. Hanasaki,2

    E-Print Network [OSTI]

    Konar, Megan

    is predominantly rain-fed (i.e., produced using ``green'' water). Approximately 60%­70% of the global food supply is produced on rain-fed lands [Falkenmark and Rockstrom, 2004]. Green water supplies remain important evenTemporal dynamics of blue and green virtual water trade networks M. Konar,1 C. Dalin,1 N. Hanasaki

  1. Bayesian Spatio-Temporal Modelling to Deliver More Accurate and Instantaneous Air Pollution

    E-Print Network [OSTI]

    Sahu, Sujit K

    Bayesian Spatio-Temporal Modelling to Deliver More Accurate and Instantaneous Air Pollution concentrations in the atmosphere. Many urban and suburban areas have high levels of ozone concentrations, but many ru- ral areas also have high ozone levels as winds carry emissions hundreds of miles from

  2. Towards a Predictive Model for Opal Exploration using a Spatio-temporal Data Mining Approach

    E-Print Network [OSTI]

    Müller, Dietmar

    Towards a Predictive Model for Opal Exploration using a Spatio-temporal Data Mining Approach Andrew depositional, unclassified Opal deposit 140°E120°E 20°S 40°S Winton Opalton Jundah Eromanga Quilpie Lightning Ridge White Cliffs Stuart Creek LambinaMintabie Coober Pedy Surat Basin Eromanga Basin Opal mining town

  3. Saving for the future self: Neural measures of future self-continuity predict temporal discounting

    E-Print Network [OSTI]

    Knutson, Brian

    Saving for the future self: Neural measures of future self-continuity predict temporal discounting gains over future gains. According to a future self-continuity hypothesis, individuals per- ceive and treat the future self differently from the present self, and so might fail to save for their future

  4. Behavioral/Systems/Cognitive Specializations for Chromatic and Temporal Signals in

    E-Print Network [OSTI]

    Wandell, Brian A.

    -cones. These signals are transformed by retinal and thalamic circuitry specialized for encoding different aspects additional specializations for chromatic and temporal processing take place (Meadows, 1974; Zeki et al., 1991 processing? For some insights about how to approach this problem, we might consider the best understood

  5. Spatio-temporal variations of double-couple aftershock mechanisms and possible volumetric earthquake strain

    E-Print Network [OSTI]

    Ben-Zion, Yehuda

    Spatio-temporal variations of double-couple aftershock mechanisms and possible volumetric of the early focal mechanisms around the edges of the Landers rupture suggest possible volumetric earthquake volumetric earthquake strain, J. Geophys. Res. Solid Earth, 118, 2347­2355, doi:10.1002/jgrb.50202. 1

  6. Temporal Trends in Migration in the Åland Islands: Effects of Population Size and Geographic Distance

    E-Print Network [OSTI]

    Mielke, James H.; Relethford, John H.; Eriksson, Aldur W.

    1994-06-01

    Using a model developed by Relethford (1992), we assess temporal trends (1750-1949) in marital migration in the Aland Islands, Finland, in relation to both geographic distance and population size. The 200-year time period was divided into four 50...

  7. System and technique for ultrasonic characterization of settling suspensions

    DOE Patents [OSTI]

    Greenwood, Margaret S. (Richland, WA); Panetta, Paul D. (Richland, WA); Bamberger, Judith A. (Richland, WA); Pappas, Richard A. (Richland, WA)

    2006-11-28

    A system for determining properties of settling suspensions includes a settling container, a mixer, and devices for ultrasonic interrogation transverse to the settling direction. A computer system controls operation of the mixer and the interrogation devices and records the response to the interrogating as a function of settling time, which is then used to determine suspension properties. Attenuation versus settling time for dilute suspensions, such as dilute wood pulp suspension, exhibits a peak at different settling times for suspensions having different properties, and the location of this peak is used as one mechanism for characterizing suspensions. Alternatively or in addition, a plurality of ultrasound receivers are arranged at different angles to a common transmitter to receive scattering responses at a variety of angles during particle settling. Angular differences in scattering as a function of settling time are also used to characterize the suspension.

  8. Bioforensics: Characterization of biological weapons agents by NanoSIMS

    SciTech Connect (OSTI)

    Weber, P K; Ghosal, S; Leighton, T J; Wheeler, K E; Hutcheon, I D

    2007-02-26

    The anthrax attacks of Fall 2001 highlight the need to develop forensic methods based on multiple identifiers to determine the origin of biological weapons agents. Genetic typing methods (i.e., DNA and RNA-based) provide one attribution technology, but genetic information alone is not usually sufficient to determine the provenance of the material. Non-genetic identifiers, including elemental and isotopic signatures, provide complementary information that can be used to identify the means, geographic location and date of production. Under LDRD funding, we have successfully developed the techniques necessary to perform bioforensic characterization with the NanoSIMS at the individual spore level. We have developed methods for elemental and isotopic characterization at the single spore scale. We have developed methods for analyzing spore sections to map elemental abundance within spores. We have developed rapid focused ion beam (FIB) sectioning techniques for spores to preserve elemental and structural integrity. And we have developed a high-resolution depth profiling method to characterize the elemental distribution in individual spores without sectioning. We used these newly developed methods to study the controls on elemental abundances in spores, characterize the elemental distribution of in spores, and to study elemental uptake by spores. Our work under this LDRD project attracted FBI and DHS funding for applied purposes.

  9. Hybrid spatio-temporal structuring and browsing of an image collection acquired from a personal camera phone

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    as an unsu- pervised classification problem, in both space and time. A criterion and an estimation procedure-temporal classification is presented, obtained by fusing the temporal and geolocation-based par- titions, providing be distinguished from the digital library viewpoint by the content itself (nature of the scenes), the partial

  10. A Data Analytics Framework for Smart Grids: Spatio-temporal Wind Power Analysis and Synchrophasor Data Mining

    E-Print Network [OSTI]

    Zhang, Junshan

    A Data Analytics Framework for Smart Grids: Spatio-temporal Wind Power Analysis and Synchrophasor-temporal wind power analysis for wind generation forecast and integration, and II) data mining and information fusion of synchrophasor measurements toward secure power grids. Part I is centered around wind power

  11. 784 IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 18. NO. 5, OCTOBER 1990 Temporal Evolution of Plasma From a Highly Ionized

    E-Print Network [OSTI]

    Rocca, Jorge J.

    -3 transitions of HeII has been observed following plasma recombination in a flowing arc jet [9]. However the low784 IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 18. NO. 5, OCTOBER 1990 Temporal Evolution of Plasma the temporal ev- olution of a highly ionized helium plasma generated in a l-mm-diameter capillary by a fast (90

  12. Temporal evolution of the electron energy distribution function in oxygen and chlorine gases under dc and ac fields

    E-Print Network [OSTI]

    Economou, Demetre J.

    Temporal evolution of the electron energy distribution function in oxygen and chlorine gases under for publication 19 February 1993) An analysis of the temporal evolution of the electron energy distribution of the distribution function is dominant. The electron energy distribution function (EEDF) can be derived from

  13. Basic characterization of highly enriched uranium by gamma spectrometry

    E-Print Network [OSTI]

    Cong Tam Nguyen; Jozsef Zsigrai

    2005-08-25

    Gamma-spectrometric methods suitable for the characterization of highly enriched uranium samples encountered in illicit trafficking of nuclear materials are presented. In particular, procedures for determining the 234U, 235U, 238U, 232U and 236U contents and the age of highly enriched uranium are described. Consequently, the total uranium content and isotopic composition can be calculated. For determining the 238U and 232U contents a low background chamber was used. In addition, age dating of uranium was also performed using low-background spectrometry.

  14. Basic characterization of highly enriched uranium by gamma spectrometry

    E-Print Network [OSTI]

    Nguyen, C T

    2006-01-01

    Gamma-spectrometric methods suitable for the characterization of highly enriched uranium samples encountered in illicit trafficking of nuclear materials are presented. In particular, procedures for determining the 234U, 235U, 238U, 232U and 236U contents and the age of highly enriched uranium are described. Consequently, the total uranium content and isotopic composition can be calculated. For determining the 238U and 232U contents a low background chamber was used. In addition, age dating of uranium was also performed using low-background spectrometry.

  15. Apparatus and method for characterizing conductivity of materials

    DOE Patents [OSTI]

    Doss, J.D.

    1988-04-13

    Apparatus and method for noncontact, radio-frequency shielding current characterization of materials. Self- or mutual inductance changes in one or more inductive elements, respectively, occur when materials capable of supporting shielding currents are placed in proximity thereto, or undergo change in resistivity while in place. Such changes can be observed by incorporating the inductor(s) in a resonant circuit and determining the frequency of oscillation or by measuring the voltage induced on a coupled inductive element. The present invention is useful for determining the critical temperature and superconducting transition width for superconducting samples. 8 figs.

  16. CX-010689: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Generic CX Determination for Financial Assistance Awards CX(s) Applied: Unknown Date: 07/17/2013 Location(s): Illinois Offices(s): Chicago Office

  17. CX-012200: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Determination of Excess Real Property CX(s) Applied: B1.36 Date: 05/01/2014 Location(s): Colorado Offices(s): Legacy Management

  18. Means and method for characterizing high power, ultra short laser pulses in a real time, on line manner

    DOE Patents [OSTI]

    Veligdan, James T. (Manorville, NY)

    1994-01-01

    An ultra short (<10 ps), high power laser pulse is temporally characterized by a system that uses a physical measurement of a wavefront that has been altered in a known manner. The system includes a first reflection switch to remove a portion of a pulse from a beam of pulses, then includes a second reflection switch, operating in a mode that is opposite to the first reflection switch, to slice off a portion of that removed portion. The sliced portion is then directed to a measuring device for physical measurement. The two reflection switches are arranged with respect to each other and with respect to the beam of ultra short pulses such that physical measurement of the sliced portion is related to the temporal measurement of the ultra short pulse by a geometric or trigonometric relationship. The reflection switches are operated by a control pulse that is directed to impinge on each of the reflection switches at a 90.degree. angle of incidence.

  19. Characterization of the surface properties of Illinois Basin Coals

    SciTech Connect (OSTI)

    Demir, I.

    1991-01-01

    The overall objective of this research project is to provide fundamental data on the physical and chemical surface properties of Illinois coals, specifically those of the Illinois Basin Coal Sample Program (IBCSP). This will help coal researchers achieve an optimal match between Illinois Basin coals and potential coal cleaning and conversion processes (or at least reduce the number of coals suitable for a particular process) and may lead to improved desulfurization and increased utilization of Illinois Basin coals. The specific tasks scheduled to meet our objective are: (1) Physical Characterization: Determine total surface area, porosity, pore size and volume distributions of IBCSP coals crushed to two particle sizes, {minus}100 and {minus}400 mesh (exclusive of IBC-108 which is available only in {minus}400 mesh form), in both an unoxidized and oxidized state. (2) Chemical Characterization: Determine the surface charge (electrokinetic mobility) as a function of pH by electrophoresis and analyze the surface chemical structure of the above samples using Diffuse Reflectance Infrared Spectroscopy (DRIS). (3) Multivariate Statistical Analyses: Explore possible relationships among the newly determined surface properties and other available characterization data, including chemical and petrographic compositions, vitrinite reflectance, free swelling index, ash yield, sulfur forms, and other relevant properties.

  20. Biomass Surface Characterization Laboratory (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-04-01

    This fact sheet provides information about Biomass Surface Characterization Laboratory capabilities and applications at NREL.

  1. Characterization of Piezoelectric Materials for Transducers

    E-Print Network [OSTI]

    Stewart Sherrit; Binu K. Mukherjee

    2007-11-16

    Review of techniques for characterizing piezoelectric/electrostrictive material for transducer applications.

  2. CX-012384: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Eleven Soil Bores Along the M-Area Abandoned Process Sewer Line for Vadose Zone Characterization CX(s) Applied: B3.1 Date: 05/19/2014 Location(s): South Carolina Offices(s): Savannah River Operations Office

  3. CX-100003: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Surface and Subsurface Geodesy Combined with Active Borehole Experimentation for the Advanced Characterization of EGS Reservoirs Award Number: DE-EE0006761 CX(s) Applied: A9 Geothermal Technologies Date: 08/27/2014 Location(s): Pennsylvania Office(s): Golden Field Office

  4. CX-012267: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Integrated Characterization of Carbon Dioxide Storage Reservoirs on the Rock Springs Uplift Combining Geomechanical… CX(s) Applied: A1, A9, B3.6 Date: 06/26/2014 Location(s): Wyoming Offices(s): National Energy Technology Laboratory

  5. CX-000738: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Site Characterization of the Highest-Priority Geologic Formations for Carbon Dioxide storage in WyomingCX(s) Applied: B3.1, B3.7, B3.8Date: 01/22/2010Location(s): Sweetwater County, WyomingOffice(s): Fossil Energy, National Energy Technology Laboratory

  6. CX-011548: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Lower Length Scale Characterization and Validation of Formation and Stability of Helium Bubbles in Nano-structured Ferritic Alloys under Irradiation CX(s) Applied: B3.6 Date: 11/26/2013 Location(s): South Carolina Offices(s): Idaho Operations Office

  7. CX-010922: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Borehole Tool for the Comprehensive Characterization of Hydrate-Bearing Sediments CX(s) Applied: A1, A9, B3.6, Other: Bench Scale Laboratory Research Date: 09/25/2013 Location(s): Georgia Offices(s): National Energy Technology Laboratory

  8. CX-006461: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Production and Characterization of Novel Photovoltaic Materials? A Minority University Research Associates Program at North Carolina Central UniversityCX(s) Applied: A9, B3.6Date: 08/11/2011Location(s): St. Durham, North CarolinaOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  9. CX-012717: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Serial Sectioning Equipment for 3-D Characterization of Microstructure and Composition Effects on Mechanical Behavior of Enhanced Uranium Oxide Fuels - Arizona State University CX(s) Applied: B3.6Date: 41844 Location(s): ArizonaOffices(s): Nuclear Energy

  10. CX-001057: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Characterizing Fractures in Geyser's Geothermal Field by Micro-Seismic Data, Using Soft Computing, Fractals, and Shear Wave AnisotropyCX(s) Applied: A9Date: 03/10/2010Location(s): CaliforniaOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  11. CX-010094: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Activity-Specific Categorical Exclusion for Deep Borehole Drilling, Sampling, and Characterization for the Proposed Natural Gas Pipeline from Pasco, Washington to the Hanford Site 200 East Area CX(s) Applied: B3.1 Date: 04/03/2013 Location(s): Washington Offices(s): River Protection-Richland Operations Office

  12. CX-005957: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Characterization of Hydrocarbon Samples and/or Qualitative/Quantitative Analysis of Hydrocarbon MixturesCX(s) Applied: B3.6Date: 05/26/2011Location(s): Pittsburgh, PennsylvaniaOffice(s): Fossil Energy, National Energy Technology Laboratory

  13. CX-005634: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Characterization of Hydrocarbon Samples and/or Qualitative/Quantitative Analysis of Hydrocarbon MixturesCX(s) Applied: B3.6Date: 04/19/2011Location(s): Pittsburgh, PennsylvaniaOffice(s): Fossil Energy, National Energy Technology Laboratory

  14. CX-005942: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Characterization of Most Promising Sequestration Formations in the Rocky Mountain Region - Drilling/Coring ActionsCX(s) Applied: B3.1, B3.8Date: 06/04/2011Location(s): Craig, ColoradoOffice(s): Fossil Energy, National Energy Technology Laboratory

  15. CX-010144: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Additional Characterization Sampling at the Coal Pile Ash Basin 788-3A and the Ash Pile 788-A CX(s) Applied: B3.1 Date: 03/06/2013 Location(s): South Carolina Offices(s): Savannah River Operations Office

  16. CX-000750: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Characterization of Pilocene and Miocene Formations in the Wilmington Graben, Offshore Los Angeles for Large Scale Geologic Storage of Carbon Dioxide (Terminal Island Drilling)CX(s) Applied: A9, B3.1Date: 01/29/2010Location(s): San Pedro, CaliforniaOffice(s): Fossil Energy, National Energy Technology Laboratory

  17. CX-000419: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Characterization of the Triassic Newark Basin of New York and New Jersey for Geologic Storage of Carbon DioxideCX(s) Applied: B3.1, A9Date: 12/11/2009Location(s): Orangetown, New YorkOffice(s): Fossil Energy, National Energy Technology Laboratory

  18. CX-000420: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Characterization of the Triassic Newark Basin of New York and New Jersey for Geologic Storage of Carbon DioxideCX(s) Applied: B3.1, A9Date: 12/11/2009Location(s): Houston, TexasOffice(s): Fossil Energy, National Energy Technology Laboratory

  19. CX-000418: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Characterization of the Triassic Newark Basin of New York and New Jersey for Geologic Storage of Carbon DioxideCX(s) Applied: B3.1, A9Date: 12/11/2009Location(s): Poughkeepsie, New YorkOffice(s): Fossil Energy, National Energy Technology Laboratory

  20. CX-008301: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Characterization of the Triassic Newark Basin of New York and New Jersey for Geologic Storage CX(s) Applied: B3.1, B3.7 Date: 04/25/2012 Location(s): New York Offices(s): National Energy Technology Laboratory