Sample records for media enhanced vapor-phase

  1. Enhanced Vapor-Phase Diffusion in Porous Media - LDRD Final Report

    SciTech Connect (OSTI)

    Ho, C.K.; Webb, S.W.

    1999-01-01T23:59:59.000Z

    As part of the Laboratory-Directed Research and Development (LDRD) Program at Sandia National Laboratories, an investigation into the existence of enhanced vapor-phase diffusion (EVD) in porous media has been conducted. A thorough literature review was initially performed across multiple disciplines (soil science and engineering), and based on this review, the existence of EVD was found to be questionable. As a result, modeling and experiments were initiated to investigate the existence of EVD. In this LDRD, the first mechanistic model of EVD was developed which demonstrated the mechanisms responsible for EVD. The first direct measurements of EVD have also been conducted at multiple scales. Measurements have been made at the pore scale, in a two- dimensional network as represented by a fracture aperture, and in a porous medium. Significant enhancement of vapor-phase transport relative to Fickian diffusion was measured in all cases. The modeling and experimental results provide additional mechanisms for EVD beyond those presented by the generally accepted model of Philip and deVries (1957), which required a thermal gradient for EVD to exist. Modeling and experimental results show significant enhancement under isothermal conditions. Application of EVD to vapor transport in the near-surface vadose zone show a significant variation between no enhancement, the model of Philip and deVries, and the present results. Based on this information, the model of Philip and deVries may need to be modified, and additional studies are recommended.

  2. ZnO nanorod growth by plasma-enhanced vapor phase transport with different growth durations

    SciTech Connect (OSTI)

    Kim, Chang-Yong; Oh, Hee-bong [Department of Nano Science and Engineering, Inje University, Obang-dong, Gimhae, Gyeongnam 621-749 (Korea, Republic of); Ryu, Hyukhyun, E-mail: hhryu@inje.ac.kr [Department of Nano Science and Engineering, Center for Nano Manufacturing, Inje University, Obang-dong, Gimhae, Gyeongnam 621-749 (Korea, Republic of); Yun, Jondo [Department of Nano Science and Engineering, Kyungnam University, Changwon, Gyeongnam 631-701 (Korea, Republic of); Lee, Won-Jae [Department of Materials and Components Engineering, Dong-Eui University, 995 Eomgwangno, Busanjin-gu, Busan 614-714 (Korea, Republic of)

    2014-09-01T23:59:59.000Z

    In this study, the structural properties of ZnO nanostructures grown by plasma-enhanced vapor phase transport (PEVPT) were investigated. Plasma-treated oxygen gas was used as the oxygen source for the ZnO growth. The structural properties of ZnO nanostructures grown for different durations were measured by scanning electron microscopy, x-ray diffraction, and transmission electron microscopy. The authors comprehensively analyzed the growth of the ZnO nanostructures with different growth durations both with and without the use of plasma-treated oxygen gas. It was found that PEVPT has a significant influence on the growth of the ZnO nanorods. PEVPT with plasma-treated oxygen gas facilitated the generation of nucleation sites, and the resulting ZnO nanorod structures were more vertical than those prepared by conventional VPT without plasma-treated oxygen gas. As a result, the ZnO nanostructures grown using PEVPT showed improved structural properties compared to those prepared by the conventional VPT method.

  3. Vapor phase modifiers for oxidative coupling

    DOE Patents [OSTI]

    Warren, Barbara K. (Charleston, WV)

    1991-01-01T23:59:59.000Z

    Volatilized metal compounds retard vapor phase alkane conversion reactions in oxidative coupling processes that convert lower alkanes to higher hydrocarbons.

  4. Vapor phase modifiers for oxidative coupling

    DOE Patents [OSTI]

    Warren, B.K.

    1991-12-17T23:59:59.000Z

    Volatilized metal compounds are described which are capable of retarding vapor phase alkane conversion reactions in oxidative coupling processes that convert lower alkanes to higher hydrocarbons.

  5. Quantitative Infrared Intensity Studies of Vapor-PhaseGlyoxal...

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

    Infrared Intensity Studies of Vapor-Phase Glyoxal,Methylglyoxal, and 2,3-Butanedione (Diacetyl) with Quantitative Infrared Intensity Studies of Vapor-Phase Glyoxal,Methylglyoxal,...

  6. Absolute integrated intensities of vapor-phase hydrogen peroxide...

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

    Absolute integrated intensities of vapor-phase hydrogen peroxide (H202) in the mid-infrared at atmospheric pressure. Absolute integrated intensities of vapor-phase hydrogen...

  7. Vapor-phase heat-transport system

    SciTech Connect (OSTI)

    Hedstrom, J.C.

    1983-01-01T23:59:59.000Z

    A vapor-phase heat-transport system is being tested in one of the passive test cells at Los Alamos. The system consists of one selective-surface collector and a condenser inside a water storage tank. The refrigerant, R-11, can be returned to the collector by gravity or with a pump. Results from several operating configurations are presented, together with a comparison with other passive systems. A new self-pumping concept is presented.

  8. The control of confined vapor phase explosions

    SciTech Connect (OSTI)

    Scilly, N.F. [Laporte plc, Widnes (United Kingdom); Owen, O.J.R. [Fine Organics, Ltd., Middlesborough (United Kingdom); Wilberforce, J.K. [Solvay SA, Brussels (Belgium)

    1995-12-31T23:59:59.000Z

    The probability of, for example, a fire or explosion occurring during a process operation is related both to the fire-related properties of the materials used, such as flash point, flammable limits etc., i.e. the material or intrinsic factors, and the nature of the operation and the equipment used, i.e. the extrinsic factors. The risk, or frequency of occurrence, of other hazards such as reaction runaway, major toxic release etc. can be determined in a similar manner. For a vapor phase explosion (and a fire) the probability of the event is the product of the probability of generating a flammable atmosphere and the probability of ignition. Firstly, materials may be coded using properties that are relevant to the hazard in question. Secondly, different operations have different degrees of risk and these risks are assigned as Low, Medium, High etc. according to criteria outlined here. Combination of these two factors will then be a measure of the overall risk of the operation with the specified material and may be used to define operating standards. Currently, the hazard/risk of a vapor phase explosions is examined by this method but in due course dust explosions, fires, condensed phase explosions, reaction runaways, physical explosions, major toxic releases and incompatibility will be included.

  9. Zinc enhanced hard disk media

    DOE Patents [OSTI]

    Zou, Jie (Pittsburgh, PA); Lambeth, David N. (Pittsburgh, PA); Laughlin, David E. (Pittsburgh, PA)

    2002-01-01T23:59:59.000Z

    The present invention provides a magnetic recording media incorporating Zn containing layers in close proximity to a magnetic layer to provide media having increased coercivity and lower noise. The Zn containing layer can be incorporated in a rotating, translating or stationary recording media to operate in conjunction with magnetic transducing heads for recording and reading of magnetic data, as well as other applications. The magnetic recording medium of the invention preferably includes a Co or Co alloy film magnetic layer, underlayer structures to promote epitaxial crystalline structure in the magnetic layer, and a Zn containing layer to promote isolation between the magnetic grains. The medium can further include seed layers, underlayers, intermediate layers, and overlayers. The process of manufacture includes promoting diffusion of Zn to the magnetic layer grain boundaries.

  10. Monitoring of vapor phase polycyclic aromatic hydrocarbons

    DOE Patents [OSTI]

    Vo-Dinh, Tuan; Hajaligol, Mohammad R.

    2004-06-01T23:59:59.000Z

    An apparatus for monitoring vapor phase polycyclic aromatic hydrocarbons in a high-temperature environment has an excitation source producing electromagnetic radiation, an optical path having an optical probe optically communicating the electromagnetic radiation received at a proximal end to a distal end, a spectrometer or polychromator, a detector, and a positioner coupled to the first optical path. The positioner can slidably move the distal end of the optical probe to maintain the distal end position with respect to an area of a material undergoing combustion. The emitted wavelength can be directed to a detector in a single optical probe 180.degree. backscattered configuration, in a dual optical probe 180.degree. backscattered configuration or in a dual optical probe 90.degree. side scattered configuration. The apparatus can be used to monitor an emitted wavelength of energy from a polycyclic aromatic hydrocarbon as it fluoresces in a high temperature environment.

  11. Characterizing A MediaEnhanced Classroom Server November 4, 1999

    E-Print Network [OSTI]

    Chervenak, Ann

    Characterizing A Media­Enhanced Classroom Server November 4, 1999 Abstract Media­enhanced classrooms are changing the way we teach and learn. Servers for such applications differ from a typical web server in the nature and geographic spread of the user community and the type of information accessed

  12. Assessment of radionuclide vapor-phase transport in unsaturated tuff

    SciTech Connect (OSTI)

    Smith, D.M.; Updegraff, C.D.; Bonano, E.J.; Randall, J.D.

    1986-11-01T23:59:59.000Z

    This report describes bounding calculations performed to investigate the possibility of radionuclide migration in a vapor phase associated with the emplacement of high-level waste canister in unsaturated tuff formations. Two potential radionuclide transport mechanisms in the vapor phase were examined: aerosol migration and convection/diffusion of volatile species. The former may have significant impact on the release of radionuclides to the accessible environment as the concentration in the aerosols will be equal to that in the ground water. A conservative analysis of air diffusion in a stagnant liquid film indicated that for all expected repository conditions, aerosol formation is not possible. The migration of volatile species was examined both in the vicinity of a waste canister and outside the thermally disturbed zone. Two-dimensional (radial) and three-dimensional (radial-vertical) coupled heat transfer-gas flow-liquid flow simulations were performed using the TOUGH computer code. The gas flow rate relative to the liquid flow rate predicted from the simulations allowed calculations of mobility ratios due to convection which led to the conclusion that, except for the immediate region near the canister, transport in the liquid phase will be dominant for radionuclides heavier than radon. Near the waste canister, iodine transport may also be important in the vapor phase. Bounding calculations for vertical mobility ratios were carried out as a function of saturation. These calculations are conservative and agree well with the two-dimensional simulations. Based on this analysis, it is clear that vapor-phase transport will not be important for radionuclides such as cesium and heavier species. Vapor transport for iodine may play a role in the overall release scenario depending on the particular repository conditions.

  13. Review of enhanced vapor diffusion in porous media

    SciTech Connect (OSTI)

    Webb, S.W.; Ho, C.K.

    1998-08-01T23:59:59.000Z

    Vapor diffusion in porous media in the presence of its own liquid has often been treated similar to gas diffusion. The gas diffusion rate in porous media is much lower than in free space due to the presence of the porous medium and any liquid present. However, enhanced vapor diffusion has also been postulated such that the diffusion rate may approach free-space values. Existing data and models for enhanced vapor diffusion, including those in TOUGH2, are reviewed in this paper.

  14. Liquid-phase compositions from vapor-phase analyses

    SciTech Connect (OSTI)

    Davis, W. Jr. (Oak Ridge Gaseous Diffusion Plant, TN (USA)); Cochran, H.D. (Oak Ridge National Lab., TN (USA))

    1990-02-01T23:59:59.000Z

    Arsenic normally is not considered to be a contaminant. However, because arsenic was found in many cylinders of UF{sub 6}, including in corrosion products, a study was performed of the distribution of the two arsenic fluorides, AsF{sub 3} and AsF{sub 5}, between liquid and vapor phases. The results of the study pertain to condensation or vaporization of liquid UF{sub 6}. This study includes use of various experimental data plus many extrapolations necessitated by the meagerness of the experimental data. The results of this study provide additional support for the vapor-liquid equilibrium model of J.M. Prausnitz and his coworkers as a means of describing the distribution of various impurities between vapor and liquid phases of UF{sub 6}. Thus, it is concluded that AsF{sub 3} will tend to concentrate in the liquid phase but that the concentration of AsF{sub 5} in the vapor phase will exceed its liquid-phase concentration by a factor of about 7.5, which is in agreement with experimental data. Because the weight of the liquid phase in a condensation operation may be in the range of thousands of times that of the vapor phase, most of any AsF{sub 5} will be in the liquid phase in spite of this separation factor of 7.5. It may also be concluded that any arsenic fluorides fed into a uranium isotope separation plant will either travel with other low-molecular-weight gases or react with materials present in the plant. 25 refs., 3 figs., 6 tabs.

  15. Vapor phase elemental sulfur amendment for sequestering mercury in contaminated soil

    DOE Patents [OSTI]

    Looney, Brian B.; Denham, Miles E.; Jackson, Dennis G.

    2014-07-08T23:59:59.000Z

    The process of treating elemental mercury within the soil is provided by introducing into the soil a heated vapor phase of elemental sulfur. As the vapor phase of elemental sulfur cools, sulfur is precipitated within the soil and then reacts with any elemental mercury thereby producing a reaction product that is less hazardous than elemental mercury.

  16. Carbon-Supported bimetallic Pd-Fe catalysts for vapor-phase hydrodeoxygenation of guaiacol

    SciTech Connect (OSTI)

    Sun, Junming; Karim, Ayman M.; Zhang, He; Kovarik, Libor; Li, Xiaohong S.; Hensley, Alyssa; McEwen, Jean-Sabin; Wang, Yong

    2013-10-01T23:59:59.000Z

    Abstract Carbon supported metal catalysts (Cu/C, Fe/C, Pd/C, Pt/C, PdFe/C and Ru/C) have been prepared, characterized and tested for vapor-phase hydrodeoxygenation (HDO) of guaiacol (GUA) at atmospheric pressure. Phenol was the major intermediate on all catalysts. Over the noble metal catalysts saturation of the aromatic ring was the major pathway observed at low temperature (250 °C), forming predominantly cyclohexanone and cyclohexanol. Substantial ring opening reaction was observed on Pt/C and Ru/C at higher reaction temperatures (e.g., 350 °C). Base metal catalysts, especially Fe/C, were found to exhibit high HDO activity without ring-saturation or ring-opening with the main products being benzene, phenol along with small amounts of cresol, toluene and trimethylbenzene (TMB). A substantial enhancement in HDO activity was observed on the PdFe/C catalysts. Compared with Fe/C, the yield to oxygen-free aromatic products (i.e., benzene/toluene/TMB) on PdFe/C increased by a factor of four at 350 °C, and by approximately a factor of two (83.2% versus 43.3%) at 450 °C. The enhanced activity of PdFe/C is attributed to the formation of PdFe alloy as evidenced by STEM, EDS and TPR.

  17. Sulfurization of a carbon surface for vapor phase mercury removal II: Sulfur forms and mercury uptake

    E-Print Network [OSTI]

    Borguet, Eric

    promote the formation of organic sulfur and the presence of H2S during the cooling process increased in the presence of H2S was very effective towards Hg uptake in nitrogen. Corre- lation of mercury uptake capacitySulfurization of a carbon surface for vapor phase mercury removal ­ II: Sulfur forms and mercury

  18. Vapor phase deposition of oligo,,phenylene ethynylene... molecules for use in molecular electronic devices

    E-Print Network [OSTI]

    Bean, John C.

    , many groups have made headway fab- ricating molecular electronic test devices.1­18 These devices exceptions,22,23 the field of mo- lecular electronics is plagued by problems including a lack of deviceVapor phase deposition of oligo,,phenylene ethynylene... molecules for use in molecular electronic

  19. In situ, subsurface monitoring of vapor-phase TCE using fiber optics

    SciTech Connect (OSTI)

    Rossabi, J. [Westinghouse Savannah River Co., Aiken, SC (United States); Colston, B. Jr.; Brown, S.; Milanovich, F. [Lawrence Livermore National Lab., CA (United States); Lee, L.T. Jr. [Army Engineer Waterways Experiment Station, Vicksburg, MS (United States). Geotechnical Lab.

    1993-03-05T23:59:59.000Z

    A vapor-phase, reagent-based, fiber optic trichloroethylene (TCE) sensor developed by Lawrence Livermore National Laboratory (LLNL) was demonstrated at the Savannah River Site (SRS) in two configurations. The first incorporated the sensor into a down-well instrument bounded by two inflatable packers capable of sealing an area for discrete depth analysis. The second involved an integration of the sensor into the probe tip of the Army Corps of Engineers Waterways Experiment Station (WES) cone penetrometry system. Discrete depth measurements of vapor-phase concentrations of TCE in the vadose zone were successfully made using both configurations. These measurements demonstrate the first successful in situ sensing (as opposed to sampling) of TCE at a field site.

  20. A model for enhanced fluid percolation in porous media by application of low-frequency elastic waves

    E-Print Network [OSTI]

    Beresnev, Igor

    , primarily in connection with the appli- cations to enhanced oil recovery (EOR) and remediation of nonaqueousA model for enhanced fluid percolation in porous media by application of low-frequency elastic can significantly enhance transport of nonaqueous phase liquids (NAPLs) in porous media. Our analyses

  1. The particulate and vapor phase components of airborne polyaromatic hydrocarbons (PAHs) in coal gasification pilot plants 

    E-Print Network [OSTI]

    Brink, Eric Jon

    1980-01-01T23:59:59.000Z

    , the hot gases flow into a condenser where they are (1-3, 7) cooled and the liquid sulfur 1s removed. The final steps 1n the gasif1cation process are to compr ess the methanated gas from appr oximately 140 psig to pipel1ne pr essure of 1000 psig...THE PARTICULATE AND VAPOR PHASE COMPONENTS OF AIRBORNE POLYAROMATIC HYDROCARBONS(PAHs) IN COAL GASIFICATION PILOT PLANTS A Thesis by ERIC JON BRINK Submitted to the Graduate College of Texas A & M University in partial fulfillment...

  2. A description of the vapor phase in the lithium thionyl chloride battery

    E-Print Network [OSTI]

    Morales, Rodolfo

    1988-01-01T23:59:59.000Z

    A DESCRIPTION OF TIIE YAPOP, PHASE IN THF. LITHIUM THIONYI. CHLORIDE BATTERY A Thesis by RODOLFO MORALES, JR. Submitted to the Graduate College of Texas AEzM University in partial fulfrHment of the requirement for the degree oi' MASTER... OF SCIENCE August 1988 Major Subject: Chemical Engineering A DESCRIPTION OF THE VAPOR PHASE IN THE LITHIUM THIONYL CHLORIDE BATTERY A Thesis bv RODOLFO 'vIORALES, JR. Approved as to style and content by: Ralph E. White (Chairman of Committee) James...

  3. MEMS Lubrication by In-Situ Tribochemical Reactions From the Vapor Phase.

    SciTech Connect (OSTI)

    Dugger, Michael T.; Asay, David B.; Kim, Seong H.

    2008-01-01T23:59:59.000Z

    Vapor Phase Lubrication (VPL) of silicon surfaces with pentanol has been demonstrated. Two potential show stoppers with respect to application of this approach to real MEMS devices have been investigated. Water vapor was found to reduce the effectiveness of VPL with alcohol for a given alcohol concentration, but the basic reaction mechanism observed in water-free environments is still active, and devices operated much longer in mixed alcohol and water vapor environments than with chemisorbed monolayer lubricants alone. Complex MEMS gear trains were successfully lubricated with alcohol vapors, resulting in a factor of 104 improvement in operating life without failure. Complex devices could be made to fail if operated at much higher frequencies than previously used, and there is some evidence that the observed failure is due to accumulation of reaction products at deeply buried interfaces. However, if hypothetical reaction mechanisms involving heated surfaces are valid, then the failures observed at high frequency may not be relevant to operation at normal frequencies. Therefore, this work demonstrates that VPL is a viable approach for complex MEMS devices in conventional packages. Further study of the VPL reaction mechanisms are recommended so that the vapor composition may be optimized for low friction and for different substrate materials with potential application to conventionally fabricated, metal alloy parts in weapons systems. Reaction kinetics should be studied to define effective lubrication regimes as a function of the partial pressure of the vapor phase constituent, interfacial shear rate, substrate composition, and temperature.

  4. Liquid-vapor phase transition in nuclei or compound nucleus decay?

    E-Print Network [OSTI]

    L. G. Moretto; J. B. Elliott; L. Phair; G. J. Wozniak

    2002-09-12T23:59:59.000Z

    Recent analyses of multifragmentation in terms of Fisher's model and the related construction of a phase diagram brings forth the problem of the true existence of the vapor phase and the meaning of its associated pressure. Our analysis shows that a thermal emission picture is equivalent to a Fisher-like equilibrium description which avoids the problem of the vapor and explains the recently observed Boltzmann-like distribution of the emission times. In this picture a simple Fermi gas thermometric relation is naturally justified. Low energy compound nucleus emission of intermediate mass fragments is shown to scale according to Fisher's formula and can be simultaneously fit with the much higher energy ISiS multifragmentation data.

  5. DOI: 10.1002/adma.200502721 Vapor-Phase Synthesis and Characterization of e-FeSi Nanowires**

    E-Print Network [OSTI]

    Deshmukh, Mandar M.

    -dimensional inorganic nano- structures have emerged as promising materials for funda- mental studies and possibleDOI: 10.1002/adma.200502721 Vapor-Phase Synthesis and Characterization of e-FeSi Nanowires-rod or thin-film samples. Here, we report the synthesis of single-crystalline FeSi nanowires

  6. Organometallic vapor-phase homoepitaxy of gallium arsenide assisted by a downstream hydrogen afterglow plasma in the growth region

    E-Print Network [OSTI]

    Collins, George J.

    Organometallic vapor-phase homoepitaxy of gallium arsenide assisted by a downstream hydrogen 1991; accepted for publication 3 April 1992) hz situ generated arsenic hydrides are reacted downstream with trimethylgallium (TMGa), both in the presence of and in the absence of a downstream hydrogen afterglow plasma. The

  7. Compound nuclear decay and the liquid to vapor phase transition: a physical picture

    E-Print Network [OSTI]

    L. G. Moretto; J. B. Elliott; L. Phair

    2005-07-08T23:59:59.000Z

    Analyses of multifragmentation in terms of the Fisher droplet model (FDM) and the associated construction of a nuclear phase diagram bring forth the problem of the actual existence of the nuclear vapor phase and the meaning of its associated pressure. We present here a physical picture of fragment production from excited nuclei that solves this problem and establishes the relationship between the FDM and the standard compound nucleus decay rate for rare particles emitted in first-chance decay. The compound thermal emission picture is formally equivalent to a FDM-like equilibrium description and avoids the problem of the vapor while also explaining the observation of Boltzmann-like distribution of emission times. In this picture a simple Fermi gas thermometric relation is naturally justified and verified in the fragment yields and time scales. Low energy compound nucleus fragment yields scale according to the FDM and lead to an estimate of the infinite symmetric nuclear matter critical temperature between 18 and 27 MeV depending on the choice of the surface energy coefficient of nuclear matter.

  8. Hydride vapor phase epitaxy and characterization of high-quality ScN epilayers

    SciTech Connect (OSTI)

    Oshima, Yuichi, E-mail: OSHIMA.Yuichi@nims.go.jp; Víllora, Encarnación G.; Shimamura, Kiyoshi [Environment and Energy Materials Research Division, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)

    2014-04-21T23:59:59.000Z

    The heteroepitaxial growth of ScN films was investigated on various substrates by hydride vapor phase epitaxy (HVPE). Single crystalline mirror-like ScN(100) and ScN(110) layers were successfully deposited on r- and m-plane sapphire substrates, respectively. Homogeneous stoichiometric films (N/Sc ratio 1.01?±?0.10) up to 40??m in thickness were deposited. Their mosaicity drastically improved with increasing the film thickness. The band gap was determined by optical methods to be 2.06?eV. Impurity concentrations including H, C, O, Si, and Cl were investigated through energy dispersive X-ray spectrometry and secondary ion mass spectrometry. As a result, it was found that the presence of impurities was efficiently suppressed in comparison with that of HVPE-grown ScN films reported in the past, which was possible thanks to the home-designed corrosion-free HVPE reactor. Room-temperature Hall measurements indicated that the residual free electron concentrations ranged between 10{sup 18}–10{sup 20}?cm{sup ?3}, which was markedly lower than the reported values. The carrier mobility increased monotonically with the decreasing in carrier concentration, achieving the largest value ever reported, 284?cm{sup 2}?V{sup ?1}?s{sup ?1} at n?=?3.7?×?10{sup 18}?cm{sup ?3}.

  9. Characterization and fate of vapor-phase organic constituents from atmospheric pressure fluidized bed combustors (AFBC): East Stroudsburg University AFBC

    SciTech Connect (OSTI)

    Yeh, Hsu-Chi; Newton, G.J.; Henderson, T.R.; Hobbs, C.H.

    1987-08-01T23:59:59.000Z

    Very little research has been devoted to the characterization of vapor-phase organic compounds in gaseous streams. Because of the concerns that gaseous organic compounds from FBCs may include potentially toxic and/or mutagenic materials. We will measure vapor-phase hydrocarbon concentrations in the process streams of operating FBCs. This report describes our field sampling results on the atmospheric pressure fluidized bed combustor (AFBC) at the East Stroudsburg University during its normal operation for supplying heat and hot water to the campus. This AFBC has a bed size of 36 ft/sup 2/ and was burning anthracite culm. The culm consumption rates during the week of our sampling period were 1600 to 3000 lb/hr. Emphasis was placed on characterization of process stream effluents, including particles and vapor-phase organic constituents. Results indicated that the mass concentration (or loading) of particulate matter within the effluent stream was similar to other FBCs that have been studied. The particulate mass concentration measured after the baghouse location was 0.0048 g/m/sup 3/ (0.0047 lb/10/sup 6/ Btu). This was equivalent to a total of 35 g/hr of particulate emissions. The fraction of particulate material presented as organics (extractable fraction) was, on the average, less than 2% of total mass of particulate emissions. The vapor-phase organic contents indicated that the quantities of individual polycyclic aromatic hydrocarbons (PAHs) were low, being less than 2.5 ..mu..g/m/sup 3/ for any individual sample. Most of the PAHs detected were low boiling compounds such as naphthalene or phenanthrene, with trace amounts of pyrene. 22 refs., 13 figs., 11 tabs.

  10. Method of varying a characteristic of an optical vertical cavity structure formed by metalorganic vapor phase epitaxy

    DOE Patents [OSTI]

    Hou, Hong Q. (Albuquerque, NM); Coltrin, Michael E. (Albuquerque, NM); Choquette, Kent D. (Albuquerque, NM)

    2001-01-01T23:59:59.000Z

    A process for forming an array of vertical cavity optical resonant structures wherein the structures in the array have different detection or emission wavelengths. The process uses selective area growth (SAG) in conjunction with annular masks of differing dimensions to control the thickness and chemical composition of the materials in the optical cavities in conjunction with a metalorganic vapor phase epitaxy (MOVPE) process to build these arrays.

  11. Recent progress in GaInAsSb thermophotovoltaics grown by organometallic vapor phase epitaxy

    SciTech Connect (OSTI)

    Wang, C.A.; Choi, H.K.; Oakley, D.C. [Massachusetts Inst. of Tech., Lexington, MA (United States). Lincoln Lab.; Charache, G.W. [Lockheed Martin, Inc., Schenectady, NY (United States)

    1998-06-01T23:59:59.000Z

    Studies on the materials development of Ga{sub 1{minus}x}In{sub x}As{sub y}Sb{sub 1{minus}y} alloys for thermophotovoltaic (TPV) devices are reviewed. Ga{sub 1{minus}x}In{sub x}As{sub y}Sb{sub 1{minus}y} epilayers were grown lattice matched to GaSb substrates by organometallic vapor phase epitaxy (OMVPE) using all organometallic precursors including triethylgallium, trimethylindium, tertiarybutylarsine, and trimethylantimony with diethyltellurium and dimethylzinc as the n- and p-type dopants, respectively. The overall material quality of these alloys depends on growth temperature, In content, V/III ratio, substrate misorientation, and to a lesser extent, growth rate. A mirror-like surface morphology and room temperature photoluminescence (PL) are obtained for GaInAsSb layers with peak emission in the wavelength range between 2 and 2.5 {micro}m. The crystal quality improves for growth temperature decreasing from 575 to 525 C, and with decreasing In content, as based on epilayer surface morphology and low temperature PL spectra. A trend of smaller full width at half-maximum for low temperature PL spectra is observed as the growth rate is increased from 1.5 to 2.5 and 5 {micro}m/h. In general, GaInAsSb layers grown on (100) GaSb substrates with a 6{degree} toward (111)B misorientation exhibited overall better material quality than layers grown on the more standard substrate (100)2{degree} toward (110). Consistent growth of high performance lattice-matched GaInAsSb TPV devices is also demonstrated.

  12. Treatment of Produced Water Using a Surfactant Modified Zeolite/Vapor Phase Bioreactor System

    SciTech Connect (OSTI)

    Lynn E. Katz; Kerry A. Kinney; Robert S. Bowman; Enid J. Sullivan; Soondong Kwon; Elaine B. Darby; Li-Jung Chen; Craig R. Altare

    2006-01-31T23:59:59.000Z

    Co-produced water from the oil and gas industry accounts for a significant waste stream in the United States. Produced waters typically contain a high total dissolved solids content, dissolved organic constituents such as benzene and toluene, an oil and grease component as well as chemicals added during the oil-production process. It has been estimated that a total of 14 billion barrels of produced water were generated in 2002 from onshore operations (Veil, 2004). Although much of this produced water is disposed via reinjection, environmental and cost considerations can make surface discharge of this water a more practical means of disposal. In addition, reinjection is not always a feasible option because of geographic, economic, or regulatory considerations. In these situations, it may be desirable, and often necessary from a regulatory viewpoint, to treat produced water before discharge. It may also be feasible to treat waters that slightly exceed regulatory limits for re-use in arid or drought-prone areas, rather than losing them to reinjection. A previous project conducted under DOE Contract DE-AC26-99BC15221 demonstrated that surfactant modified zeolite (SMZ) represents a potential treatment technology for produced water containing BTEX. Laboratory and field experiments suggest that: (1) sorption of benzene, toluene, ethylbenzene and xylenes (BTEX) to SMZ follows linear isotherms in which sorption increases with increasing solute hydrophobicity; (2) the presence of high salt concentrations substantially increases the capacity of the SMZ for BTEX; (3) competitive sorption among the BTEX compounds is negligible; and, (4) complete recovery of the SMZ sorption capacity for BTEX can be achieved by air sparging the SMZ. This report summarizes research for a follow on project to optimize the regeneration process for multiple sorption/regeneration cycles, and to develop and incorporate a vapor phase bioreactor (VPB) system for treatment of the off-gas generated during air sparging. To this end, we conducted batch and column laboratory SMZ and VPB experiments with synthetic and actual produced waters. Based on the results of the laboratory testing, a pilot scale study was designed and conducted to evaluate the combined SMZ/VPB process. An economic and regulatory feasibility analysis was also completed as part of the current study to assess the viability of the process for various water re-use options.

  13. TREATMENT OF PRODUCED WATERS USING A SURFACTANT MODIFIED ZEOLITE/VAPOR PHASE BIOREATOR SYSTEM

    SciTech Connect (OSTI)

    LYNN E. KATZ; KERRY A. KINNEY; R.S. BOWMAN; E.J. SULLIVAN

    2003-10-01T23:59:59.000Z

    Co-produced water from the oil and gas industry is by some estimates the largest single waste stream in the country, aside from nonhazardous industrial wastes. Characteristics of produced water include high total dissolved solids content, dissolved organic constituents such as benzene and toluene, an oil and grease component, and chemicals added during the oil-production process. While most of the produced water is disposed via reinjection, some of them must be treated to remove organic constituents before the water is discharged. An efficient, cost-effective treatment technology is needed to remove these constituents. Surfactant-modified zeolite (SMZ) has been used successfully to treat contaminated ground water for organic and inorganic constituents. In addition, the low cost of natural zeolites makes their use attractive in water-treatment applications. Our previous DOE research work (DE-AC26-99BC15221) demonstrated that SMZ could successfully remove BTEX compounds from the produced water. In addition, SMZ could be regenerated through a simple air sparging process. The primary goal of this project is to develop a robust SMZ/VPB treatment system to efficiently remove the organic constituents from produced water in a cost-effective manner. This report summarizes work of this project from March 2003 through September 2003. We have continued our investigation of SMZ regeneration from our previous DOE project. Ten saturation/stripping cycles have been completed for SMZ columns saturated with BTEX compounds. The results suggest that BTEX sorption capacity is not lost after ten saturation/regeneration cycles. The composition of produced water from a site operated by Crystal Solutions Ltd. in Wyoming has been characterized and was used to identify key semi-volatile components. Isotherms with selected semi-volatile components have been initiated and preliminary results have been obtained. The experimental vapor phase bioreactors for this project have been designed and assembled to treat the off-gas from the SMZ regeneration process. These columns will be used both in the laboratory and in the proposed field testing to be conducted next year. Innocula for the columns that degrade all of the BTEX columns have been developed.

  14. Photoresponse properties of large-area MoS{sub 2} atomic layer synthesized by vapor phase deposition

    SciTech Connect (OSTI)

    Luo, Siwei; Qi, Xiang, E-mail: xqi@xtu.edu.cn, E-mail: jxzhong@xtu.edu.cn; Ren, Long; Hao, Guolin; Fan, Yinping; Liu, Yundan; Han, Weijia; Zang, Chen; Li, Jun; Zhong, Jianxin, E-mail: xqi@xtu.edu.cn, E-mail: jxzhong@xtu.edu.cn [Hunan Key Laboratory for Micro-Nano Energy Materials and Devices, People's Republic of China Laboratory for Quantum Engineering and Micro-Nano Energy Technology, and Faculty of Materials and Optoelectronic Physics, Xiangtan University, Hunan 411105 (China)

    2014-10-28T23:59:59.000Z

    Photoresponse properties of a large area MoS{sub 2} atomic layer synthesized by vapor phase deposition method without any catalyst are studied. Scanning electron microscopy, atomic force microscopy, Raman spectrum, and photoluminescence spectrum characterizations confirm that the two-dimensional microstructures of MoS{sub 2} atomic layer are of high quality. Photoelectrical results indicate that the as-prepared MoS{sub 2} devices have an excellent sensitivity and a good reproducibility as a photodetector, which is proposed to be ascribed to the potential-assisted charge separation mechanism.

  15. Flow in porous media, phase and ultralow interfacial tensions: Mechanisms of enhanced petroleum recovery

    SciTech Connect (OSTI)

    Davis, H.T.; Scriven, L.E.

    1991-07-01T23:59:59.000Z

    A major program of university research, longer-ranged and more fundamental in approach than industrial research, into basic mechanisms of enhancing petroleum recovery and into underlying physics, chemistry, geology, applied mathematics, computation, and engineering science has been built at Minnesota. The original focus was surfactant-based chemical flooding, but the approach taken was sufficiently fundamental that the research, longer-ranged than industrial efforts, has become quite multidirectional. Topics discussed are volume controlled porosimetry; fluid distribution and transport in porous media at low wetting phase saturation; molecular dynamics of fluids in ultranarrow pores; molecular dynamics and molecular theory of wetting and adsorption; new numerical methods to handle initial and boundary conditions in immiscible displacement; electron microscopy of surfactant fluid microstructure; low cost system for animating liquid crystallites viewed with polarized light; surfaces of constant mean curvature with prescribed contact angle.

  16. ZnO/Cu(InGa)Se.sub.2 solar cells prepared by vapor phase Zn doping

    SciTech Connect (OSTI)

    Ramanathan, Kannan; Hasoon, Falah S.; Asher, Sarah E.; Dolan, James; Keane, James C.

    2007-02-20T23:59:59.000Z

    A process for making a thin film ZnO/Cu(InGa)Se.sub.2 solar cell without depositing a buffer layer and by Zn doping from a vapor phase, comprising: depositing Cu(InGa)Se.sub.2 layer on a metal back contact deposited on a glass substrate; heating the Cu(InGa)Se.sub.2 layer on the metal back contact on the glass substrate to a temperature range between about 100.degree. C. to about 250.degree. C.; subjecting the heated layer of Cu(InGa)Se.sub.2 to an evaporant species from a Zn compound; and sputter depositing ZnO on the Zn compound evaporant species treated layer of Cu(InGa)Se.sub.2.

  17. ZnO/Cu(InGa)Se2 solar cells prepared by vapor phase Zn doping

    DOE Patents [OSTI]

    Ramanathan, Kannan; Hasoon, Falah S.; Asher, Sarah E.; Dolan, James; Keane, James C.

    2007-02-20T23:59:59.000Z

    A process for making a thin film ZnO/Cu(InGa)Se2 solar cell without depositing a buffer layer and by Zn doping from a vapor phase, comprising: depositing Cu(InGa)Se2 layer on a metal back contact deposited on a glass substrate; heating the Cu(InGa)Se2 layer on the metal back contact on the glass substrate to a temperature range between about 100.degree. C. to about 250.degree. C.; subjecting the heated layer of Cu(InGa)Se2 to an evaporant species from a Zn compound; and sputter depositing ZnO on the Zn compound evaporant species treated layer of Cu(InGa)Se2.

  18. Simple Vapor-Phase Synthesis of Single-Crystalline Ag Nanowires and Single-Nanowire Surface-Enhanced Raman Scattering

    E-Print Network [OSTI]

    Ihee, Hyotcherl

    in. diameter horizontal quartz tube furnace. The NWs were grown at a few centimeters downstream from downstream by the flow of 500 sccm of Ar at 5-10 Torr to a lower temperature zone (T2 ) 500 °C), where Ag NWs

  19. Effect of surfactant Sb on In incorporation and thin film morphology of InGaN layers grown by organometallic vapor phase epitaxy

    E-Print Network [OSTI]

    Simons, Jack

    was interpreted as due to a surfactant-induced change of surface phase on the InGaN films. & 2013 Elsevier B of GaN and InN [2]. These problems con- tribute to material defects, inhomogeneous alloying, and phase the lateral epitaxial overgrowth (LEO) of GaN by organome- tallic vapor phase epitaxy (OMVPE). A change

  20. Photoluminescence linewidths in metalorganic vapor phase epitaxially grown ordered and disordered InAlGaP alloys

    SciTech Connect (OSTI)

    Schneider, R.P. Jr.; Jones, E.D.; Lott, J.A.; Bryan, R.P. (Sandia National Laboratories, Albuquerque, New Mexico 87185-5800 (United States))

    1992-12-01T23:59:59.000Z

    The dependence of the photoluminescent properties of In{sub 0.48}(Al{sub {ital y}}Ga{sub 1{minus}{ital y}}){sub 0.52}P alloys (0{le}{ital y}{le}0.5) on growth temperature and substrate misorientation off GaAs(100) has been studied. Samples were grown using low-pressure metalorganic vapor phase epitaxy. By studying the dependence of ordering behavior in InGaP as a function of substrate misorientation and growth temperature simultaneously, a very large range in low-temperature photoluminescence emission energy---135 meV---has been obtained. The photoluminescence linewidth exhibits a strong, continuous dependence on the extent of atomic ordering (the emission energy) in the alloys. The results indicate that inhomogeneity in the microstructure of the material (i.e., between ordered'' domains and the disordered'' matrix) is the dominant photoluminescence broadening mechanism. This investigation has allowed a significant optimization of the optical properties of these materials, including the narrowest low-temperature photoluminescent linewidths reported for all of the In(Al{sub {ital y}}Ga{sub 1{minus}{ital y}})P alloys exhibiting direct band gaps (4.2 meV for InGaP).

  1. Journal of Light Emitting Diodes Vol 2 N0 1, April 2010 1 Abstract--In metal organic vapor phase epitaxy we developed

    E-Print Network [OSTI]

    Wetzel, Christian M.

    Journal of Light Emitting Diodes Vol 2 N0 1, April 2010 1 Abstract-- In metal organic vapor phase epitaxy we developed GaInN/GaN quantum well material suitable for 500 ­ 580 nm light emitting diodes at longer wavelengths. Index Terms-- a-plane GaN, GaInN, Green light emitting diode, m-plane GaN I

  2. Plasmas in Multiphase Media: Bubble Enhanced Discharges in Liquids and Plasma/Liquid Phase Boundaries

    SciTech Connect (OSTI)

    Kushner, Mark Jay [University of Michigan] [University of Michigan

    2014-07-10T23:59:59.000Z

    In this research project, the interaction of atmospheric pressure plasmas with multi-phase media was computationally investigated. Multi-phase media includes liquids, particles, complex materials and porous surfaces. Although this investigation addressed fundamental plasma transport and chemical processes, the outcomes directly and beneficially affected applications including biotechnology, medicine and environmental remediation (e.g., water purification). During this project, we made advances in our understanding of the interaction of atmospheric pressure plasmas in the form of dielectric barrier discharges and plasma jets with organic materials and liquids. We also made advances in our ability to use computer modeling to represent these complex processes. We determined the method that atmospheric pressure plasmas flow along solid and liquid surfaces, and through endoscopic like tubes, deliver optical and high energy ion activation energy to organic and liquid surfaces, and produce reactivity in thin liquid layers, as might cover a wound. We determined the mechanisms whereby plasmas can deliver activation energy to the inside of liquids by sustaining plasmas in bubbles. These findings are important to the advancement of new technology areas such as plasma medicine

  3. Interfacial Co nanolayers for enhancing interlayer exchange coupling in antiferromagnetic interlayer exchange coupling media

    E-Print Network [OSTI]

    Laughlin, David E.

    Interfacial Co nanolayers for enhancing interlayer exchange coupling in antiferromagnetic of the interlayer coupling strength has been achieved by depositing Co nanolayers on both sides of the Ru layer in a conventional CoCrPt/Ru/CoCrPt antiferromagnetic interlayer exchange coupling structure. The interlayer coupling

  4. Deep Illumination Angular Domain Imaging within Highly Scattering Media Enhanced by Image Processing

    E-Print Network [OSTI]

    Chapman, Glenn H.

    tissue damage and increasing cancer risks proportionate to the cumulative dose of radiation applied [2 techniques to enhance the spatial image resolution and image contrast and to reduce noise. Keywords: Optical tomography, Angular Domain Imaging, Deep Illumination, Lasers, Tissue Optics, angular filter, Silicon

  5. Para-nitrobenzyl esterases with enhanced activity in aqueous and nonaqueous media

    DOE Patents [OSTI]

    Arnold, Frances H. (Pasadena, CA); Moore, Jeffrey C. (Pasadena, CA)

    1999-01-01T23:59:59.000Z

    A method for isolating and identifying modified para-nitrobenzyl esterases which exhibit improved stability and/or esterase hydrolysis activity toward selected substrates and under selected reaction conditions relative to the unmodified para-nitrobenzyl esterase. The method involves preparing a library of modified para-nitrobenzyl esterase nucleic acid segments (genes) which have nucleotide sequences that differ from the nucleic acid segment which encodes for unmodified para-nitrobenzyl esterase. The library of modified para-nitrobenzyl nucleic acid segments is expressed to provide a plurality of modified enzymes. The clones expressing modified enzymes are then screened to identify which enzymes have improved esterase activity by measuring the ability of the enzymes to hydrolyze the selected substrate under the selected reaction conditions. Specific modified para-nitrobenzyl esterases are disclosed which have improved stability and/or ester hydrolysis activity in aqueous or aqueous-organic media relative to the stability and/or ester hydrolysis activity of unmodified naturally occurring para-nitrobenzyl esterase.

  6. Para-nitrobenzyl esterases with enhanced activity in aqueous and nonaqueous media

    DOE Patents [OSTI]

    Arnold, F.H.; Moore, J.C.

    1999-05-25T23:59:59.000Z

    A method is disclosed for isolating and identifying modified para-nitrobenzyl esterases which exhibit improved stability and/or esterase hydrolysis activity toward selected substrates and under selected reaction conditions relative to the unmodified para-nitrobenzyl esterase. The method involves preparing a library of modified para-nitrobenzyl esterase nucleic acid segments (genes) which have nucleotide sequences that differ from the nucleic acid segment which encodes for unmodified para-nitrobenzyl esterase. The library of modified para-nitrobenzyl nucleic acid segments is expressed to provide a plurality of modified enzymes. The clones expressing modified enzymes are then screened to identify which enzymes have improved esterase activity by measuring the ability of the enzymes to hydrolyze the selected substrate under the selected reaction conditions. Specific modified para-nitrobenzyl esterases are disclosed which have improved stability and/or ester hydrolysis activity in aqueous or aqueous-organic media relative to the stability and/or ester hydrolysis activity of unmodified naturally occurring para-nitrobenzyl esterase. 43 figs.

  7. Para-nitrobenzyl esterases with enhanced activity in aqueous and nonaqueous media

    DOE Patents [OSTI]

    Arnold, F.H.; Moore, J.C.

    1998-04-21T23:59:59.000Z

    A method is disclosed for isolating and identifying modified para-nitrobenzyl esterases. These enzymes exhibit improved stability and/or esterase hydrolysis activity toward selected substrates and under selected reaction conditions relative to the unmodified para-nitrobenzyl esterase. The method involves preparing a library of modified para-nitrobenzyl esterase nucleic acid segments (genes) which have nucleotide sequences that differ from the nucleic acid segment which encodes for unmodified para-nitrobenzyl esterase. The library of modified para-nitrobenzyl nucleic acid segments is expressed to provide a plurality of modified enzymes. The clones expressing modified enzymes are then screened to identify which enzymes have improved esterase activity by measuring the ability of the enzymes to hydrolyze the selected substrate under the selected reaction conditions. Specific modified para-nitrobenzyl esterases are disclosed which have improved stability and/or ester hydrolysis activity in aqueous or aqueous-organic media relative to the stability and/or ester hydrolysis activity of unmodified naturally occurring para-nitrobenzyl esterase. 43 figs.

  8. Para-nitrobenzyl esterases with enhanced activity in aqueous and nonaqueous media

    DOE Patents [OSTI]

    Arnold, Frances H. (Pasadena, CA); Moore, Jeffrey C. (Pasadena, CA)

    1998-01-01T23:59:59.000Z

    A method for isolating and identifying modified para-nitrobenzyl esterases which exhibit improved stability and/or esterase hydrolysis activity toward selected substrates and under selected reaction conditions relative to the unmodified para-nitrobenzyl esterase. The method involves preparing a library of modified para-nitrobenzyl esterase nucleic acid segments (genes) which have nucleotide sequences that differ from the nucleic acid segment which encodes for unmodified para-nitrobenzyl esterase. The library of modified para-nitrobenzyl nucleic acid segments is expressed to provide a plurality of modified enzymes. The clones expressing modified enzymes are then screened to identify which enzymes have improved esterase activity by measuring the ability of the enzymes to hydrolyze the selected substrate under the selected reaction conditions. Specific modified para-nitrobenzyl esterases are disclosed which have improved stability and/or ester hydrolysis activity in aqueous or aqueous-organic media relative to the stability and/or ester hydrolysis activity of unmodified naturally occurring para-nitrobenzyl esterase.

  9. Simulation of EOR (enhanced oil recovery) processes in stochastically generated permeable media

    SciTech Connect (OSTI)

    Waggoner, J.R.; Castillo, J.L.; Lake, L.W. (Texas Univ., Austin, TX (USA). Dept. of Petroleum Engineering)

    1990-01-01T23:59:59.000Z

    Many enhanced oil recovery (EOR) processes involve injecting an agent, such as steam or CO{sub 2}, that is much more mobile than the resident oil. Other EOR processes attempt to improve sweep efficiency by adding polymer or surfactant to the injected water to create a favorable mobility ratio. This study examines the effect of statistically generated heterogeneity on miscible displacements at unfavorable and favorable mobility ratios. The principal goal is to delineate the effects of fingering, dispersion and channeling on volumetric sweep efficiency. Two-dimensional heterogeneous permeability fields are generated with variability (heterogeneity) and spatial correlation as characterizing parameters. Four levels of correlation and three of variability make up a 12 element matrix. At each element of the matrix, a miscible displacement simulation at unit mobility ratio shows the effect of the heterogeneity, and simulations at mobility ratios of 10 and 0.5 show the effect of viscous force differences combined with heterogeneity. 20 refs., 7 figs., 3 tabs.

  10. Preparation of Ag Schottky contacts on n-type GaN bulk crystals grown in nitrogen rich atmosphere by the hydride vapor phase epitaxy technique

    SciTech Connect (OSTI)

    Stübner, R., E-mail: ronald.stuebner@physik.tu-dresden.de; Kolkovsky, Vl.; Weber, J. [Technische Universität Dresden, 01062 Dresden (Germany); Leibiger, Gunnar; Habel, Frank [Freiberger Compound Materials GmbH, 09599 Freiberg (Germany)

    2014-10-14T23:59:59.000Z

    Electrical properties of Schottky contacts on n-type GaN grown in nitrogen rich atmosphere with different N/Ga ratios by hydride vapor phase epitaxy were investigated. We show that tunneling of electrons from the conduction band of GaN to the metal is dominant in our samples. The quality of Schottky contacts does not only depend on surface preparation but also on the growth conditions of the crystals. Schottky contacts on these crystals show an increasing deterioration when higher N/Ga growth ratios are used. We correlate our results with the presence of negatively charged gallium vacancies in the samples. These charges compensate the positively charged donors and lead to a significant increase in series resistance.

  11. X-ray determination of threading dislocation densities in GaN/Al{sub 2}O{sub 3}(0001) films grown by metalorganic vapor phase epitaxy

    SciTech Connect (OSTI)

    Kopp, Viktor S., E-mail: victor.kopp@pdi-berlin.de; Kaganer, Vladimir M. [Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5–7, 10117 Berlin (Germany); Baidakova, Marina V.; Lundin, Wsevolod V.; Nikolaev, Andrey E.; Verkhovtceva, Elena V.; Yagovkina, Maria A. [Ioffe Physical-Technical Institute of the Russian Academy of Sciences, Politekhnicheskaya 26, 194021 St.-Petersburg (Russian Federation); Cherkashin, Nikolay [CEMES-CNRS and Université de Toulouse, 29 rue J. Marvig, 31055 Toulouse (France)

    2014-02-21T23:59:59.000Z

    Densities of a- and a+c-type threading dislocations for a series of GaN films grown in different modes by metalorganic vapor phase epitaxy are determined from the x-ray diffraction profiles in skew geometry. The reciprocal space maps are also studied. Theory of x-ray scattering from crystals with dislocations is extended in order to take into account contribution from both threading and misfit dislocations. The broadening of the reciprocal space maps along the surface normal and the rotation of the intensity distribution ellipse is attributed to misfit dislocations at the interface. We find that the presence of a sharp AlN/GaN interface leads to an ordering of misfit dislocations and reduces strain inhomogeneity in GaN films.

  12. Substrate misorientation induced strong increase in the hole concentration in Mg doped GaN grown by metalorganic vapor phase epitaxy

    SciTech Connect (OSTI)

    Suski, T.; Litwin-Staszewska, E.; Piotrzkowski, R.; Krysko, M.; Nowak, G.; Franssen, G.; Dmowski, L. H.; Lucznik, B. [Institute of High Pressure Physics UNIPRESS, Polish Academy of Sciences, Sokolowska 29/37, 01-142 Warsaw (Poland); Czernecki, R.; Grzanka, S. [TopGaN Ltd., Sokolowska 29/37 01-142 Warszawa (Poland); Leszczynski, M.; Perlin, P.; Grzegory, I. [Institute of High Pressure Physics UNIPRESS, Polish Academy of Sciences, Sokolowska 29/37, 01-142 Warsaw (Poland); TopGaN Ltd., Sokolowska 29/37 01-142 Warsaw (Poland); Jakiela, R. [Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32, 02-668 Warsaw (Poland)

    2008-10-27T23:59:59.000Z

    We demonstrate that relatively small GaN substrate misorientation can strongly change hole carrier concentration in Mg doped GaN layers grown by metalorganic vapor phase epitaxy. In this work intentionally misoriented GaN substrates (up to 2 deg. with respect to ideal <0001> plane) were employed. An increase in the hole carrier concentration to the level above 10{sup 18} cm{sup -3} and a decrease in GaN:Mg resistivity below 1 {omega} cm were achieved. Using secondary ion mass spectroscopy we found that Mg incorporation does not change with varying misorientation angle. This finding suggests that the compensation rate, i.e., a decrease in unintentional donor density, is responsible for the observed increase in the hole concentration. Analysis of the temperature dependence of electrical transport confirms this interpretation.

  13. Study of the simultaneous heat and mass transfer in two-dimensional porous media

    E-Print Network [OSTI]

    Suh, Young Bae

    1988-01-01T23:59:59.000Z

    in an unsaturated porous medium. A chronological discussion of the details of the review follows. Philip and De Vries[1] were the early investigators of the general topic of moisture migration in porous media with temperature gradients. The analysis revealed... for drying in a porous medium. The model accounted for the ca, pillary flow of the liquid phs, se and the diffusion of the vapor phase, including heat-conduction through the solid matrix. The coupled, non-linear governing equations, together...

  14. A study of vapor-liquid flow in porous media

    SciTech Connect (OSTI)

    Satik, Cengiz; Yortsos, Yanis C.

    1994-01-20T23:59:59.000Z

    We study the heat transfer-driven liquid-to-vapor phase change in single-component systems in porous media by using pore network models and flow visualization experiments. Experiments using glass micromodels were conducted. The flow visualization allowed us to define the rules for the numerical pore network model. A numerical pore network model is developed for vapor-liquid displacement where fluid flow, heat transfer and capillarity are included at the pore level. We examine the growth process at two different boundary conditions.

  15. COMBINED THEORETICAL AND EXPERIMENTAL INVESTIGATION OF MECHANISMS AND KINETICS OF VAPOR-PHASE MERCURY UPTAKE BY CARBONACOUES SURFACES

    SciTech Connect (OSTI)

    Radisav D. Vidic

    2002-05-01T23:59:59.000Z

    The first part of this study evaluated the application of a versatile optical technique to study the adsorption and desorption of model adsorbates representative of volatile polar (acetone) and non-polar (propane) organic compounds on a model carbonaceous surface under ultra high vacuum (UHV) conditions. The results showed the strong correlation between optical differential reflectance (ODR) and adsorbate coverage determined by temperature programmed desorption (TPD). ODR technique was proved to be a powerful tool to investigate surface adsorption and desorption from UHV to high pressure conditions. The effects of chemical functionality and surface morphology on the adsorption/desorption behavior of acetone, propane and mercury were investigated for two model carbonaceous surfaces, namely air-cleaved highly oriented pyrolytic graphite (HOPG) and plasma-oxidized HOPG. They can be removed by thermal treatment (> 500 K). The presence of these groups almost completely suppresses propane adsorption at 90K and removal of these groups leads to dramatic increase in adsorption capacity. The amount of acetone adsorbed is independent of surface heat treatment and depends only on total exposure. The effects of morphological heterogeneity is evident for plasma-oxidized HOPG as this substrate provides greater surface area, as well as higher energy binding sites. Mercury adsorption at 100 K on HOPG surfaces with and without chemical functionalities and topological heterogeneity created by plasma oxidation occurs through physisorption. The removal of chemical functionalities from HOPG surface enhances mercury physisorption. Plasma oxidation of HOPG provides additional surface area for mercury adsorption. Mercury adsorption by activated carbon at atmospheric pressure occurs through two distinct mechanisms, physisorption below 348 K and chemisorption above 348 K. No significant impact of oxygen functionalities was observed in the chemisorption region. The key findings of this study open the possibility to apply scientific information obtained from the studies with simple surfaces like HOPG under ideal conditions (UHV) to industrial sorbents under realistic process conditions. HOPG surface can be modified chemically and topologically by plasma oxidation to simulate key features of activated carbon adsorbents.

  16. Enhanced Separation Efficiency in Olefin/Paraffin Distillation

    Broader source: Energy.gov [DOE]

    This factsheet describes a research project whose main objective is to develop technologies to enhance separation efficiencies by replacing the conventional packing materials with hollow fiber membranes, which have a high specific area and separated channels for both liquid and vapor phases. The use of hollow fibers in distillation columns can help refineries decrease operating costs, reduce greenhouse gas emissions through reduced heating costs, and help expand U.S. refining capacity through improvements to existing sites, without large scale capital investment.

  17. Digital Media Design Students Constitution

    E-Print Network [OSTI]

    Jones, Michelle

    Digital Media Design Students Constitution ARTICLE I: ORGANIZATION'S NAME AND PURPOSE Section 1. Name The name of this organization is Digital Media Design Students (DMDS). Section 2: Purpose A. To promote, enhance and further develop educational and social achievements and interests in digital media. B

  18. X-231A demonstration of in-situ remediation of DNAPL compounds in low permeability media by soil fracturing with thermally enhanced mass recovery or reactive barrier destruction

    SciTech Connect (OSTI)

    Siegrist, R.L. [Oak Ridge National Lab., TN (United States)] [Oak Ridge National Lab., TN (United States); [Colorado School of Mines, Golden, CO (United States). Environmental Science and Engineering Div.; Lowe, K.S. [Oak Ridge National Lab., Grand Junction, CO (United States). Life Sciences Div.] [Oak Ridge National Lab., Grand Junction, CO (United States). Life Sciences Div.; Murdoch, L.D. [FRx, Inc., Cincinnati, OH (United States)] [FRx, Inc., Cincinnati, OH (United States); [Clemson Univ., SC (United States); Slack, W.W. [FRx, Inc., Cincinnati, OH (United States)] [FRx, Inc., Cincinnati, OH (United States); Houk, T.C. [Lockheed Martin Energy Systems, Piketon, OH (United States)] [Lockheed Martin Energy Systems, Piketon, OH (United States)

    1998-03-01T23:59:59.000Z

    The overall goal of the program of activities is to demonstrate robust and cost-effective technologies for in situ remediation of DNAPL compounds in low permeability media (LPM), including adaptations and enhancements of conventional technologies to achieve improved performance for DNAPLs in LPM. The technologies sought should be potential for application at simple, small sites (e.g., gasoline underground storage tanks) as well as at complex, larger sites (e.g., DOE land treatment units). The technologies involved in the X-231A demonstration at Portsmouth Gaseous Diffusion Plant (PORTS) utilized subsurface manipulation of the LPM through soil fracturing with thermally enhanced mass recovery or horizontal barrier in place destruction. To enable field evaluation of these approaches, a set of four test cells was established at the X-231A land treatment unit at the DOE PORTS plant in August 1996 and a series of demonstration field activities occurred through December 1997. The principal objectives of the PORTS X-231A demonstration were to: determine and compare the operational features of hydraulic fractures as an enabling technology for steam and hot air enhanced soil vapor extraction and mass recovery, in situ interception and reductive destruction by zero valent iron, and in situ interception and oxidative destruction by potassium permanganate; determine the interaction of the delivered agents with the LPM matrix adjacent to the fracture and within the fractured zone and assess the beneficial modifications to the transport and/or reaction properties of the LPM deposit; and determine the remediation efficiency achieved by each of the technology strategies.

  19. Mechanism of coercivity enhancement by Ag addition in FePt-C granular films for heat assisted magnetic recording media

    SciTech Connect (OSTI)

    Varaprasad, B. S. D. Ch. S.; Takahashi, Y. K., E-mail: takahashi.yukiko@nims.go.jp; Wang, J.; Hono, K. [National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba 305-0047 (Japan); Ina, T.; Nakamura, T.; Ueno, W.; Nitta, K.; Uruga, T. [Japan Synchrotron Radiation Research Institute (JASRI/SPring-8), 1-1-1 Kouto, Sayo, Hyogo 679-5198 (Japan)

    2014-06-02T23:59:59.000Z

    We investigated the Ag distribution in a FePtAg-C granular film that is under consideration for a heat assisted magnetic recording medium by aberration-corrected scanning transmission electron microscope-energy dispersive X-ray spectroscopy and X-ray absorption fine structure. Ag is rejected from the core of FePt grains during the deposition, forming Ag-enriched shell surrounding L1{sub 0}-ordered FePt grains. Since Ag has no solubility in both Fe and Pt, the rejection of Ag induces atomic diffusions thereby enhancing the kinetics of the L1{sub 0}-order in the FePt grains.

  20. An Experimental Study of Micron-Size Zero-Valent Iron Emplacement in Permeable Porous Media Using Polymer-Enhanced Fluids

    SciTech Connect (OSTI)

    Oostrom, Mart; Wietsma, Thomas W.; Covert, Matthew A.; Vermeul, Vince R.

    2005-12-22T23:59:59.000Z

    At the Hanford Site, an extensive In Situ Redox Manipulation (ISRM) permeable reactive barrier was installed to prevent chromate from reaching the Columbia River. However, chromium has been detected in several wells, indicating a premature loss of the reductive capacity in the aquifer. One possible cause for premature chromate breakthrough is associated with the presence of high-permeability zones in the aquifer. In these zones, groundwater moves relatively fast and is able to oxidize iron more rapidly. There is also a possibility that the high-permeability flow paths are deficient in reducing equivalents (e.g. reactive iron), required for barrier performance. One way enhancement of the current barrier reductive capacity can be achieved is by the addition of micron-scale zero-valent iron to the high-permeability zones within the aquifer. The potential emplacement of zero-valent iron (Fe0) into high-permeability Hanford sediments (Ringold Unit E gravels) using shear-thinning fluids containing polymers was investigated in three-dimensional wedge-shaped aquifer models. Polymers were used to create a suspension viscous enough to keep the Fe0 in solution for extended time periods to improve colloid movement into the porous media without causing a permanent detrimental decrease in hydraulic conductivity. Porous media were packed in the wedge-shaped flow cell to create either a heterogeneous layered system with a high-permeability zone in between two low-permeability zones or a high-permeability channel surrounded by low-permeability materials. The injection flow rate, polymer type, polymer concentration, and injected pore volumes were determined based on preliminary short- and long-column experiments.

  1. Long Term Field Development of a Surfactant Modified Zeolite/Vapor Phase Bioreactor System for Treatment of Produced Waters for Power Generation

    SciTech Connect (OSTI)

    Lynn Katz; Kerry Kinney; Robert Bowman; Enid Sullivan; Soondong Kwon; Elaine Darby; Li-Jung Chen; Craig Altare

    2007-12-31T23:59:59.000Z

    The main goal of this research was to investigate the feasibility of using a combined physicochemical/biological treatment system to remove the organic constituents present in saline produced water. In order to meet this objective, a physical/chemical adsorption process was developed and two separate biological treatment techniques were investigated. Two previous research projects focused on the development of the surfactant modified zeolite adsorption process (DE-AC26-99BC15221) and development of a vapor phase biofilter (VPB) to treat the regeneration off-gas from the surfactant modified zeolite (SMZ) adsorption system (DE-FC26-02NT15461). In this research, the SMZ/VPB was modified to more effectively attenuate peak loads and to maintain stable biodegradation of the BTEX constituents from the produced water. Specifically, a load equalization system was incorporated into the regeneration flow stream. In addition, a membrane bioreactor (MBR) system was tested for its ability to simultaneously remove the aromatic hydrocarbon and carboxylate components from produced water. The specific objectives related to these efforts included the following: (1) Optimize the performance VPBs treating the transient loading expected during SMZ regeneration: (a) Evaluate the impact of biofilter operating parameters on process performance under stable operating conditions. (b) Investigate how transient loads affect biofilter performance, and identify an appropriate technology to improve biological treatment performance during the transient regeneration period of an SMZ adsorption system. (c) Examine the merits of a load equalization technology to attenuate peak VOC loads prior to a VPB system. (d) Evaluate the capability of an SMZ/VPB to remove BTEX from produced water in a field trial. (2) Investigate the feasibility of MBR treatment of produced water: (a) Evaluate the biodegradation of carboxylates and BTEX constituents from synthetic produced water in a laboratory-scale MBR. (b) Evaluate the capability of an SMZ/MBR system to remove carboxylates and BTEX from produced water in a field trial. Laboratory experiments were conducted to provide a better understanding of each component of the SMZ/VPB and SMZ/MBR process. Laboratory VPB studies were designed to address the issue of influent variability and periodic operation (see DE-FC26-02NT15461). These experiments examined multiple influent loading cycles and variable concentration loadings that simulate air sparging as the regeneration option for the SMZ system. Two pilot studies were conducted at a produced water processing facility near Farmington, New Mexico. The first field test evaluated SMZ adsorption, SMZ regeneration, VPB buffering, and VPB performance, and the second test focused on MBR and SMZ/MBR operation. The design of the field studies were based on the results from the previous field tests and laboratory studies. Both of the biological treatment systems were capable of removing the BTEX constituents in the laboratory and in the field over a range of operating conditions. For the VPB, separation of the BTEX constituents from the saline aqueous phase yielded high removal efficiencies. However, carboxylates remained in the aqueous phase and were not removed in the combined VPB/SMZ system. In contrast, the MBR was capable of directly treating the saline produced water and simultaneously removing the BTEX and carboxylate constituents. The major limitation of the MBR system is the potential for membrane fouling, particularly when the system is treating produced water under field conditions. The combined process was able to effectively pretreat water for reverse osmosis treatment and subsequent downstream reuse options including utilization in power generation facilities. The specific conclusions that can be drawn from this study are summarized.

  2. Flow in porous media, phase behavior and ultralow interfacial tensions: mechanisms of enhanced petroleum recovery. Final technical report

    SciTech Connect (OSTI)

    Davis, H.T.; Scriven, L.E.

    1982-01-01T23:59:59.000Z

    A major program of university research, longer-ranged and more fundamental in approach than industrial research, into basic mechanisms of enhancing petroleum recovery and into underlying physics, chemistry, geology, applied mathematics, computation, and engineering science has been built at Minnesota. The 1982 outputs of the interdisciplinary team of investigators were again ideas, instruments, techniques, data, understanding and skilled people: forty-one scientific and engineering papers in leading journals; four pioneering Ph.D. theses; numerous presentations to scientific and technical meetings, and to industrial, governmental and university laboratories; vigorous program of research visits to and from Minnesota; and two outstanding Ph.D.'s to research positions in the petroleum industry, one to a university faculty position, one to research leadership in a governmental institute. This report summarizes the 1982 papers and theses and features sixteen major accomplishments of the program during that year. Abstracts of all forty-five publications in the permanent literature are appended. Further details of information transfer and personnel exchange with industrial, governmental and university laboratories appear in 1982 Quarterly Reports available from the Department of Energy and are not reproduced here. The Minnesota program continues in 1983, notwithstanding earlier uncertainty about the DOE funding which finally materialized and is the bulk of support. Supplemental grants-in-aid from nine companies in the petroleum industry are important, as are the limited University and departmental contributions. 839 references, 172 figures, 29 tables.

  3. Ge-related faceting and segregation during the growth of metastable (GaAs){sub 1{minus}x}(Ge{sub 2}){sub x} alloy layers by metal{endash}organic vapor-phase epitaxy

    SciTech Connect (OSTI)

    Norman, A.G.; Olson, J.M.; Geisz, J.F.; Moutinho, H.R.; Mason, A.; Al-Jassim, M.M. [National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, Colorado 80401 (United States)] [National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, Colorado 80401 (United States); Vernon, S.M. [Spire Corporation, One Patriots Park, Bedford, Massachusetts 01730 (United States)] [Spire Corporation, One Patriots Park, Bedford, Massachusetts 01730 (United States)

    1999-03-01T23:59:59.000Z

    (GaAs){sub 1{minus}x}(Ge{sub 2}){sub x} alloy layers, 0{lt}x{lt}0.22, have been grown by metal{endash}organic vapor-phase epitaxy on vicinal (001) GaAs substrates. Transmission electron microscopy revealed pronounced phase separation in these layers, resulting in regions of GaAs-rich zinc-blende and Ge-rich diamond cubic material that appears to lead to substantial band-gap narrowing. For x=0.1 layers, the phase-separated microstructure consisted of intersecting sheets of Ge-rich material on {l_brace}115{r_brace}B planes surrounding cells of GaAs-rich material, with little evidence of antiphase boundaries. Atomic force microscopy revealed {l_brace}115{r_brace}B surface faceting associated with the phase separation. {copyright} {ital 1999 American Institute of Physics.}

  4. Chemical penetration enhancers and in situ-forming reservoirs for trans-tympanic drug delivery : progress toward improved treatment of Otitis media

    E-Print Network [OSTI]

    Simons, Emmanuel John

    2008-01-01T23:59:59.000Z

    Otitis media (OM) is the most common specifically-treated childhood disease in the United States. The widespread use of systemic antibiotics against a disease of such high incidence is believed to be a driving force behind ...

  5. Media & Press

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

    Science Engagement Move your data Programs & Workshops Science Requirements Reviews Case Studies News & Publications ESnet News Media & Press Publications and Presentations...

  6. Media Contacts

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > The EnergyCenter (LMI-EFRC)MaRIETechnologies | BlandineMedia MediaMedia

  7. Media, media practice and cultural studies

    E-Print Network [OSTI]

    Sussex, University of

    MA in Digital Media MA in Filmmaking MA in Gender and Media MA in Media and Cultural Studies MA in Digital Documentary, MA in Digital Media, MA in Filmmaking A first- or upper second-class undergraduateMedia, media practice and cultural studies MPhil, PhD Normally a Masters degree with a Merit

  8. Measurement of vapor phase mercury emissions at coal-fired power plants using regular and speciating sorbent traps with in-stack and out-of-stack sampling methods

    SciTech Connect (OSTI)

    Chin-Min Cheng; Chien-Wei Chen; Jiashun Zhu; Chin-Wei Chen; Yao-Wen Kuo; Tung-Han Lin; Shu-Hsien Wen; Yong-Siang Zeng; Juei-Chun Liu; Wei-Ping Pan [Western Kentucky University, Bowling Green, KY (United States). Institute for Combustion Science and Environmental Technology

    2009-09-15T23:59:59.000Z

    A systematic investigation of sorbent-trap sampling, which is a method that uses paired sorbent traps to measure total vapor phase mercury (Hg), was carried out at two coal-fired power plants. The objective of the study was to evaluate the effects (if any) on data quality when the following aspects of the sorbent trap method are varied: (a) sorbent trap configuration; (b) sampling time; and (c) analytical technique. Also, the performance of a speciating sorbent trap (i.e., a trap capable of separating elemental Hg from oxidized Hg), was evaluated by direct comparison against the Ontario Hydro (OH) reference method. Flue gas samples were taken using both 'regular' and modified sorbent trap measurement systems. Both short-term (1.5 h) and long-term (18 h to 10 days) samples were collected. The in-stack and out-of-stack sampling methods produced satisfactory relative accuracy results for both the short-term and long-term testing. For the short-term tests, the in-stack sampling results compared more favorably to the OH method than did the out-of-stack results. The relative deviation between the paired traps was considerably higher for the short-term out-of-stack tests than for the long-term tests. A one-way analysis of variance (ANOVA), showed a statistically significant difference (p < 0.1) between the direct combustion and wet-chemistry analytical methods used in the study; the results from the direct combustion method were consistently higher than the wet-chemistry results. The evaluation of the speciating mercury sorbent trap demonstrated that the trap is capable of providing reasonably accurate total mercury concentrations and speciation data that are somewhat comparable to data obtained with the OH method. 5 refs., 4 figs., 8 tabs.

  9. Phase separation and convection in heterogeneous porous media

    E-Print Network [OSTI]

    Simon, Emmanuel

    permeability fields. In mid-ocean ridge hydrothermal systems, a dense brine phase and a coexisting vapor phase permeabilities can act as a store for brines and facilitate the formation of much thicker brine layers than separates into a dense brine phase and a coexisting low-salinity vapor phase at elevated temperatures

  10. Media Training

    ScienceCinema (OSTI)

    None

    2011-10-06T23:59:59.000Z

    With the LHC starting up soon, the world's media are again turning their attention to CERN. We're all likely to be called upon to explain what is happening at CERN to media, friends and neighbours. The seminar will be given by BBC television news journalists Liz Pike and Nadia Marchant, and will deal with the kind of questions we're likely to be confronted with through the restart period. The training is open for everybody. Make sure you arrive early enough to get a seat - there are only 200 seats in the Globe. The session will also be webcast: http://webcast.cern.ch/

  11. Multiphase flow in fractured porous media

    SciTech Connect (OSTI)

    Firoozabadi, A.

    1995-02-01T23:59:59.000Z

    The major goal of this research project was to improve the understanding of the gas-oil two-phase flow in fractured porous media. In addition, miscible displacement was studied to evaluate its promise for enhanced recovery.

  12. Detection of volatile organic compounds using surface enhanced Raman scattering

    SciTech Connect (OSTI)

    Chang, A S; Maiti, A; Ileri, N; Bora, M; Larson, C C; Britten, J A; Bond, T C

    2012-03-22T23:59:59.000Z

    The authors present the detection of volatile organic compounds directly in their vapor phase by surface-enhanced Raman scattering (SERS) substrates based on lithographically-defined two-dimensional rectangular array of nanopillars. The type of nanopillars is known as the tapered pillars. For the tapered pillars, SERS enhancement arises from the nanofocusing effect due to the sharp tip on top. SERS experiments were carried out on these substrates using various concentrations of toluene vapor. The results show that SERS signal from a toluene vapor concentration of ppm level can be achieved, and the toluene vapor can be detected within minutes of exposing the SERS substrate to the vapor. A simple adsorption model is developed which gives results matching the experimental data. The results also show promising potential for the use of these substrates in environmental monitoring of gases and vapors.

  13. Social Media

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > TheNuclearHomelandMultivariateSite Map Main Menu AboutsmrSocial Media

  14. Social Media QMUL Digital Communications Strategy Social Media

    E-Print Network [OSTI]

    Chittka, Lars

    Social Media ­ QMUL Digital Communications Strategy 1 Social Media QMUL Media ­ QMUL Digital Communications Strategy 2 Use of this document Use Media ­ QMUL Digital Communications Strategy 3 What is social media

  15. Digital Media Developing Digital

    E-Print Network [OSTI]

    Developing Digital Media Developing Digital Media Digital Media Case Study During 2012, IT Services component of student and staff development." In terms of the use of digital media for teaching, Mark Dixon this digital content, mentorship of paramedic students was informal and delivered locally. According to Mairéad

  16. The Media Mural Project: Empowering Youth in New Mass Media

    E-Print Network [OSTI]

    Damsen, Jess

    2007-01-01T23:59:59.000Z

    distribution, is a digital media education program developedpresenting their own digital media messages to the world (orconcepts related to digital media production. Some training

  17. ORISE: Media Analysis and Monitoring

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

    Media Analysis and Monitoring The Oak Ridge Institute for Science and Education (ORISE) uses comprehensive media analysis and monitoring tools to define media interest and the...

  18. New Media Practices in Korea

    E-Print Network [OSTI]

    Ok, Hyeryoung

    2011-01-01T23:59:59.000Z

    P. , & Kerr, A. (2001). Digital media, nation-states andmost advanced IT and digital media culture, Korean youths’construction of the global digital media scene. Introduction

  19. Modelling Flow through Porous Media under Large Pressure Gradients

    E-Print Network [OSTI]

    Srinivasan, Shriram

    2013-11-01T23:59:59.000Z

    The most interesting and technologically important problems in the study of flow through porous media involve very high pressures and pressure gradients in the flow do- main such as enhanced oil recovery and carbon dioxide sequestration. The popular...

  20. COLLEGE OF MEDIA CORE (12 hrs) Media & Society

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    hrs) Visual Journalism/ New Media JRL 225 (3 hrs) Media Ethics & Law JRL 428 (3 hrs) STRATEGICCOLLEGE OF MEDIA CORE (12 hrs) Intro to Media & Society JRL 101 (3 hrs) Media Writing JRL 215 (3: Creative I ADV 401 (3 hrs) Media Planning & Strategy ADV 403 (3 hrs) Interactive Marketing Communications

  1. 02-06-2007 11:15 Code: 096 The New Media

    E-Print Network [OSTI]

    02-06-2007 11:15 Code: 096 The New Media Modern Electronic Methods and Who is Using Them Dr Karen troll web 2.0 ·mashup ·social networking ·dooced #12;Why use New Media? enhance the interactive nature's opinions improve the speed of dissemination `many hands make light work' #12;Pitfalls of New Media validity

  2. Entrepreneurship and the Media: Do Media Portrayals of Entrepreneurs Matter?

    E-Print Network [OSTI]

    Mottram, Nigel

    -entrepreneurs think more positively about entrepreneurs in general. While 12% of new founders said the media were1 Entrepreneurship and the Media: Do Media Portrayals of Entrepreneurs Matter? Jonathan Levie: www.strath.ac.uk/huntercentre #12;2 Entrepreneurship and the Media: Do Media Portrayals

  3. Communication, Media and Film Media are all around us, influencing

    E-Print Network [OSTI]

    BA in Communication, Media and Film. Additionally, we offer a Combined Honours Program in Digital focus on a particular area of study within Communication, Media and Film such as new media and digital culture; digital media production; popular culture and media literacy; advertising, public relations

  4. Content Protection for Optical Media Content Protection for Optical Media

    E-Print Network [OSTI]

    Amir, Yair

    Content Protection for Optical Media Content Protection for Optical Media A Comparison of Self-Protecting Digital Content and AACS Independent Security Evaluators www.securityevaluators.com May 3, 2005 Copyright for Optical Media 2 #12;Content Protection for Optical Media Content Protection for Optical Media 3 Executive

  5. On Capillary Slowdown of Viscous Fingering in Immiscible Displacement in Porous Media

    E-Print Network [OSTI]

    Daripa, Prabir

    of enhancement of oil recovery from underground reservoirs. Such enhanced oil recovery typically involves fingering) which can be controlled to enhance oil recovery in some types of reservoirs. For example, in Al on enhanced oil recovery is discussed in a practical way. Such porous media flows enjoy some similarities

  6. Social Media Ad Metrics Definitions

    E-Print Network [OSTI]

    Collins, Gary S.

    these metrics to encourage growth through consistency. Social media speaks to a new way of understanding howSocial Media Ad Metrics Definitions Released May 2009 #12;Social Media Metrics Definitions © 2008 & Social Media Committee. About the IAB's User-Generated Content & Social Media Committee: The User

  7. Media with no Fresnel equation

    E-Print Network [OSTI]

    Peinke, Joachim

    Media with no Fresnel equation Alberto Favaro & Ismo V. Lindell Outline Part 1: Local linear media Part 2: Jump conditions Part 3: media with no G(q) Conclusions Electromagnetic media with no Fresnel with no Fresnel equation Alberto Favaro & Ismo V. Lindell Outline Part 1: Local linear media Part 2: Jump

  8. The Remote Media Immersion (RMI)

    E-Print Network [OSTI]

    Shahabi, Cyrus

    the ultimate digital media delivery platform. Its streaming media server delivers multiple high- bandwidth aspects). The hope is that our advances in digital media delivery will enable new applicationsThe Remote Media Immersion (RMI) system blends multiple cutting- edge media technologies to create

  9. Rotary Microfilter Media Evaluation

    SciTech Connect (OSTI)

    Poirier, M

    2005-04-20T23:59:59.000Z

    Savannah River National Laboratory (SRNL) received funding from DOE EM-21, Office of Cleanup Technologies, to develop the rotary microfilter for high level radioactive service. One aspect of this project evaluated alternative filter media to select one for the 2nd generation rotary microfilter being procured as a prefilter to a small column ion exchange process. The authors conducted screening tests on a variety of filter media and pore sizes using a stirred cell followed by pilot-scale testing on a more limited number of filter media and pore sizes with a three disk rotary microfilter. These tests used 5.6 molar sodium supernate, and sludge plus monosodium titanate (MST) solids. The conclusions from this work are: (1) The 0.1 {micro} nominal TruMem{reg_sign} ceramic and the Pall PMM M050 (0.5 {micro} nominal) stainless steel filter media produced the highest flux in rotary filter testing. (2) The Pall PMM M050 media produced the highest flux of the stainless steel media tested in rotary filter testing. (3) The Pall PMM M050 media met filtrate quality requirements for the rotary filter. (4) The 0.1 {micro} TruMem{reg_sign} and 0.1 {micro} Pall PMM media met filtrate quality requirements as well. (5) The Pall PMM M050 media produced comparable flux to the 0.1 {micro} TruMem{reg_sign} media, and proved more durable and easier to weld. Based on these test results, the authors recommend Pall PMM M050 filter media for the 2nd generation rotary microfilter.

  10. Photonic layered media

    DOE Patents [OSTI]

    Fleming, James G. (Albuquerque, NM); Lin, Shawn-Yu (Albuquerque, NM)

    2002-01-01T23:59:59.000Z

    A new class of structured dielectric media which exhibit significant photonic bandstructure has been invented. The new structures, called photonic layered media, are easy to fabricate using existing layer-by-layer growth techniques, and offer the ability to significantly extend our practical ability to tailor the properties of such optical materials.

  11. Media Contacts | Argonne National Laboratory

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

    Media Contacts Christopher J. Kramer Argonne National Laboratory Christopher J. Kramer is the manager of media relations and external affairs for Argonne. Contact him at...

  12. Roadmap: Electronic Media Electronic Media Sports Production Bachelor of Science

    E-Print Network [OSTI]

    Sheridan, Scott

    Roadmap: Electronic Media ­ Electronic Media Sports Production ­ Bachelor of Science [CI­2013 Page 1 of 4 | Last Updated: 23-May-12/LNHD This roadmap is a recommended semester-by-semester plan requirement #12;Roadmap: Electronic Media ­ Electronic Media Sports Production ­ Bachelor of Science [CI

  13. Cinetic Media Internship Program Cinetic Media www.cineticmedia.com

    E-Print Network [OSTI]

    collection, research and digital rights management as well as talent management. The national media companiesCinetic Media Internship Program Cinetic Media ­ www.cineticmedia.com services to the entertainment and media industries. Key areas of concentration include film finance, film sales, corporate consultation

  14. FLUID DYNAMICAL AND MODELING ISSUES OF CHEMICAL FLOODING FOR ENHANCED OIL RECOVERY

    E-Print Network [OSTI]

    Daripa, Prabir

    FLUID DYNAMICAL AND MODELING ISSUES OF CHEMICAL FLOODING FOR ENHANCED OIL RECOVERY Prabir Daripa developed flows in enhanced oil recovery (EOR). In a recent exhaustive study [Transport in Porous Media, 93 fluid flows that occur in porous media during tertiary dis- placement process of chemical enhanced oil

  15. TECHNETIUM SORPTION MEDIA REVIEW

    SciTech Connect (OSTI)

    DUNCAN JB; KELLY SE; ROBBINS RA; ADAMS RD; THORSON MA; HAASS CC

    2011-08-25T23:59:59.000Z

    This report presents information and references to aid in the selection of 99Tc sorption media for feasibility studies regarding the removal of 99Tc from Hanford's low activity waste. The report contains literature search material for sorption media (including ion exchange media) for the most tested media to date, including SuperLig 639, Reillex HPQ, TAM (Kruion), Purolite A520E and A530E, and Dowex 1X8. The U.S. Department of Energy (DOE), Office of River Protection (ORP) is responsible for management and completion of the River Protection Project (RPP) mission, which comprises both the Hanford Site tank farms and the Waste Treatment and Immobilization Plant (WTP). The RPP mission is to store, retrieve and treat Hanford's tank waste; store and dispose of treated wastes; and close the tank farm waste management areas and treatment facilities in a safe, environmentally compliant, cost-effective and energy-effective manner.

  16. Media Sanitization Manual

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2008-12-23T23:59:59.000Z

    The Manual establishes minimum technical and management requirements for the sanitization of electronic media, hardware, and devices and a risk-based approach to sanitization. Does not cancel other directives.

  17. Vapor Phase Synthesis and Characterization of -FeSi Nanowires

    E-Print Network [OSTI]

    Heller, Eric

    HF and placed in a horizontal tube furnace, between the center and the downstream end of the alumina tube. Anhydrous FeCl3 powder (Aldrich, 99.99%) was placed in an alumina boat upstream of the substrates. An inert atmosphere was maintained with a flow rate of 100 sccm N2, and the temperature at the center

  18. Organic lateral heterojunction devices for vapor-phase chemical detection

    E-Print Network [OSTI]

    Ho, John C., 1980-

    2009-01-01T23:59:59.000Z

    As the U.S. is engaged in battle overseas, there is an urgent need for the development of sensors for early warning and protection of military forces against potential attacks. On the battlefields, improvised explosive ...

  19. MODELLING AND SIMULATION OF LIQUID-VAPOR PHASE TRANSITION

    E-Print Network [OSTI]

    Faccanoni, Gloria

    and Steam (secondary loop) Water (cooling loop) Pump Steam Generator Turbine Generator Cooling Tower Water pressurized (primary loop) Water and Steam (secondary loop) Water (cooling loop) Pump Steam Generator Turbine Generator Cooling Tower Condenser Cooling Water Pump Reactor Core Reactor Vessel Control

  20. Annual Simulation Results for an Air-Cooled Binary Power Cycle Employing Flash Cooling Enhancement

    SciTech Connect (OSTI)

    Buys, A.; Gladden, C.; Kutscher, C.

    2006-01-01T23:59:59.000Z

    Objective is to perform detailed simulation of air cooled cycle with flash supplied cooling water using two types of evaporative enhancement, spray nozzels and evaporative media.

  1. Open Media Training Session

    ScienceCinema (OSTI)

    None

    2011-10-06T23:59:59.000Z

    Have you ever wondered how the media work and why some topics make it into the news and other don't? Would you like to know how to (and how not to) give an interview to a journalist? With the LHC preparing for first collisions at high energies, the world's media are again turning their attention to CERN. We're all likely to be called upon to explain what is happening at CERN to media, friends and neighbours. The seminar will be given by BBC television news journalists Liz Pike and Nadia Marchant, and will deal with the kind of questions we're likely to be confronted with through the restart period. Follow the webcast: http://webcast.cern.ch/

  2. Studying colloid transport in porous media using a geocentrifuge Prabhakar Sharma,1,2,3

    E-Print Network [OSTI]

    Flury, Markus

    Studying colloid transport in porous media using a geocentrifuge Prabhakar Sharma,1,2,3 Markus enhance the transport of contaminants. The excessive time required to conduct flow and transport experiments in porous media led to the use of centrifuges to evaluate subsurface transport processes

  3. Nuclear magnetic resonance imaging and analysis for determination of porous media properties

    E-Print Network [OSTI]

    Uh, Jinsoo

    2007-04-25T23:59:59.000Z

    heterogeneous porous media. The permeability distributions are determined by solving the inverse problem formulated in terms of flow models and the velocity data. We present new experimental designs associated with flow conditions to enhance the accuracy...

  4. Master of Science in Gestione dei Media Gestione dei Media

    E-Print Network [OSTI]

    Krause, Rolf

    Master of Science in Gestione dei Media Gestione dei Media Laurea Magistrale Obiettivi e contenuti 120 #12;Master of Science in Gestione dei Media Contenuto e obiettivi dei corsi Primo semestre mercati di riferimento delle industrie editoriali (cinema, radio-tv, stampa giornal

  5. Media Sanitization Manual

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2008-12-23T23:59:59.000Z

    The Manual establishes minimum technical and management requirements for the sanitization of electronic media, hardware, and devices and a risk-based approach to sanitization. Admin Chg 1 dated 9-1-09. Canceled by DOE O 205.1B.

  6. Media Sanitization Manual

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2008-12-23T23:59:59.000Z

    The Manual establishes minimum technical and management requirements for the sanitization of electronic media, hardware, and devices and a risk-based approach to sanitization. Admin Chg 1 dated 9-1-09; Admin Chg 2 dated 12-22-09. Canceled by DOE O 205.1B

  7. Hydrodynamic instability in strong media

    SciTech Connect (OSTI)

    Bakhrakh, S.M.; Drennov, O.B.; Kovalev, N.P. [Russian Federal Nuclear Center (Russian Federation)] [and others

    1997-03-05T23:59:59.000Z

    This paper reviews the All Russian Scientific Research Institute of Experimental Physics open publications on hydrodynamic instability in strong media.

  8. Mediating Contradictions of Digital Media

    E-Print Network [OSTI]

    Barrett, Jeffrey A.

    675 Mediating Contradictions of Digital Media Yong Ming Kow* and Bonnie Nardi** Introduction replied. "No no!" said Arthur.1 INTRODUCTION Digital media enable multiple forms of end user creativity inhabit such digital media environments. For example, ownership rights to digital artifacts developed

  9. Enhancement of Hydrogen Storage Capacity in Hydrate Lattices

    SciTech Connect (OSTI)

    Yoo, Soohaeng; Xantheas, Sotiris S.

    2012-02-16T23:59:59.000Z

    First principles electronic structure calculations of the gas phase pentagonal dodecahedron (H2O)20 (D-cage) and tetrakaidecahedron (H2O)24 (T-cage), which are building blocks of structure I (sI) hydrate lattice, suggest that these can accommodate up to a maximum of 5 and 7 guest hydrogen molecules, respectively. For the pure hydrogen hydrate, Born-Oppenheimer Molecular Dynamics (BOMD) simulations of periodic (sI) hydrate lattices indicate that the guest molecules are released into the vapor phase via the hexagonal phases of the larger T-cages. An additional mechanism for the migration between neighboring D- and T-cages was found to occur through a shared pentagonal face via the breaking and reforming of a hydrogen bond. This molecular mechanism is also found for the expulsion of a CH4 molecule from the D-cage. The presence of methane in the larger T-cages was found to block this release, therefore suggesting possible scenarios for the stabilization of these mixed guest clathrate hydrates and the potential enhancement of their hydrogen storage capacity.

  10. Marketing & Driving Demand Collaborative - Social Media Tools...

    Energy Savers [EERE]

    drivingdemandsocialmedia010611.pdf More Documents & Publications Marketing & Driving Demand: Social Media Tools & Strategies - January 16, 2011 Social Media for Natural...

  11. NYC MEDIA LAB 2 Metrotech Center, 10

    E-Print Network [OSTI]

    Aronov, Boris

    Justin Hendrix Named Executive Director of NYC Media Lab NEW YORK, New York ­ NYC Media Lab is pleased, testing, and commercializing new digital media business concepts. Prior to this role, Hendrix directed ! About NYC Media Lab NYC Media Lab connects companies seeking to advance new media technologies

  12. Taught degrees MA in Creative Media Practice

    E-Print Network [OSTI]

    Sussex, University of

    informed creative practice across digital media, photography and a range of aural and visual forms.maddox@sussex.ac.uk www.sussex.ac.uk/mfm Essentials Taught degrees MA in Creative Media Practice MA in Digital Documentary MA in Digital Media MA in Gender and Media MA in Media and Cultural Studies MA in Media Practice

  13. Media Contacts - Hanford Site

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > The EnergyCenter (LMI-EFRC)MaRIETechnologies | BlandineMedia

  14. Media Contacts | ORNL

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > The EnergyCenter (LMI-EFRC)MaRIETechnologies | BlandineMedia News

  15. Media Kit | Jefferson Lab

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > The EnergyCenter (LMI-EFRC)MaRIETechnologies | BlandineMedia NewsNews

  16. Media & Press

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |IsLove Your Home andDispositionMechanical R&D Contact: WillMedia

  17. LANSCE | News & Media | Activity Report

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

    background News Multimedia Events Profiles Highlights Activity Reports The Pulse User Program Headlines News & Media dotline Activity Reports 2012 2011 LANSCE Activity Report 2012...

  18. Visual Arts and Communication, Media and Film

    E-Print Network [OSTI]

    media, digital video and new media, while also emphasizing the critical and theoretical concerns, print media, photography, sculpture, bio art and integrated media (digital imaging, sound and video). We offer a complete range of advanced, industry-standard digital media equipment and state-of-the-art post

  19. Drama and Communication, Media and Film

    E-Print Network [OSTI]

    of contemporary communication technologies. If you wish to take courses in digital media production, please meet in more specialized areas in theatre production, performance, media studies and digital media productionDrama and Communication, Media and Film Drama and Communication, Media and Film is a dynamic

  20. 1/08 AMJ; Media Transition Group Media Material Location/Circulation Options

    E-Print Network [OSTI]

    Stowell, Michael

    materials, media or otherwise. Choosing a location When you place a new order for media materials, specify1/08 AMJ; Media Transition Group Media Material Location/Circulation Options With the closure of the media library, bibliographers have the following options for where dvd and video media materials can

  1. Using Social Media in Exercises

    SciTech Connect (OSTI)

    Donaldson, Jeff

    2014-04-28T23:59:59.000Z

    This presentation discusses the use of social media as a tool during the full-scale exercise Tremor-14 in Las Vegas, and examines Lessons Learned as a path forward in using social media to disseminate Emergency Public Information (EPI) on a regular basis.

  2. Image processing for the non-destructive characterization of porous media. Application to limestones and trabecular bones

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ) and manmade materials (e.g. industrial foams, ceramics, electronic nanodevices) are examples of porous media their complex geometry, in order to improve and enhance their performance (glass or carbon fiber), to avoid (or

  3. Aerogel Fingerprint Media

    SciTech Connect (OSTI)

    Miller, Fred S.; Andresen, Brian D.

    1999-09-21T23:59:59.000Z

    A fingerprint medium which is made of an aerogel having a predetermined density. The fingerprint medium may have a midrange density for forming plates or may be crushed forming a powder. The fingerprint medium may further include at least one of a metal and metal oxide to enhance characteristics desirable in a fingerprint medium.

  4. Video Stores, Media Technologies, and Memory

    E-Print Network [OSTI]

    Wilken, Rowan

    2010-01-01T23:59:59.000Z

    both for analogue and digital media (e.g. , memory loss duefrom all forms of digital media usage (broadband downloadingin relation to digital media is signal compression and audio

  5. Porous polymer media

    DOE Patents [OSTI]

    Shepodd, Timothy J. (Livermore, CA)

    2002-01-01T23:59:59.000Z

    Highly crosslinked monolithic porous polymer materials for chromatographic applications. By using solvent compositions that provide not only for polymerization of acrylate monomers in such a fashion that a porous polymer network is formed prior to phase separation but also for exchanging the polymerization solvent for a running buffer using electroosmotic flow, the need for high pressure purging is eliminated. The polymer materials have been shown to be an effective capillary electrochromatographic separations medium at lower field strengths than conventional polymer media. Further, because of their highly crosslinked nature these polymer materials are structurally stable in a wide range of organic and aqueous solvents and over a pH range of 2-12.

  6. Social Media's New Role in Emergency Management

    SciTech Connect (OSTI)

    Ethan Huffman; Sara Prentice

    2008-03-01T23:59:59.000Z

    As technology continues to evolve, emergency management organizations must adapt to new ways of responding to the media and public. This paper examines a brief overview of social media's new role in emergency management. This includes definitions of social media, the benefits of utilizing social media, examples of social media being used and finally a discussion of how agencies, such as Department of Energy national laboratories, can begin including social media in their emergency management plans.

  7. Enhancing practice Quality Enhancement Themes

    E-Print Network [OSTI]

    Azzopardi, Leif

    .sparqs.org.uk) a national programme of Enhancement Themes aimed at developing and sharing good practice to enhance of establishing a programme of development activities, which draw on national and international good practice Scotland #12;Contents Acknowledgements 1 1 Outline and scope 2 2 A guide for readers 3 3 Practical

  8. Bacteria transport through porous media. Annual report, December 31, 1984

    SciTech Connect (OSTI)

    Yen, T.F.

    1986-09-01T23:59:59.000Z

    The following five chapters in this report have been processed separately for inclusion in the Energy Data Base: (1) theoretical model of convective diffusion of motile and non-motile bacteria toward solid surfaces; (2) interfacial electrochemistry of oxide surfaces in oil-bearing sands and sandstones; (3) effects of sodium pyrophosphate additive on the ''huff and puff''/nutrient flooding MEOR process; (4) interaction of Escherichia coli B, B/4, and bacteriophage T4D with Berea sandstone rock in relation to enhanced oil recovery; and (5) transport of bacteria in porous media and its significance in microbial enhanced oil recovery.

  9. Media Advisory: News Media invited to cover Feb. 10 Virginia...

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

    News Media invited to cover Feb. 10 Virginia Regional High School Science Bowl at Jefferson Lab; 19 teams competing January 30, 2007 The Department of Energy's Jefferson Lab in...

  10. Capillary Fracturing in Granular Media

    E-Print Network [OSTI]

    Holtzman, Ran

    We study the displacement of immiscible fluids in deformable, noncohesive granular media. Experimentally, we inject air into a thin bed of water-saturated glass beads and observe the invasion morphology. The control ...

  11. MEDIA RELEASE 17 May 2012

    E-Print Network [OSTI]

    Pedersen, Tom

    heating systems known as District Energy (DE) Systems generate heat at a centralMEDIA RELEASE 17 May 2012 District Energy heating an effective way for BC communities to reduce greenhouse gases? Centralized

  12. Nonhyperbolic reflection moveout for orthorhombic media

    E-Print Network [OSTI]

    Al-Dajani, A.

    2002-01-01T23:59:59.000Z

    Reflection moveout in azimuthally anisotropic media is not only azimuthally dependent but it is also

  13. Graduate Certificate in Communication and New Media The Graduate Certificate in Communication and New Media emphasizes theory, production,

    E-Print Network [OSTI]

    Berdichevsky, Victor

    Graduate Certificate in Communication and New Media The Graduate Certificate in Communication and New Media emphasizes theory, production, and application of new media: COM 5280: New Media Practices (3 cr) COM 6270: New Media Theory (3 cr

  14. HISTORICIZING NEW MEDIA -1 Historicizing New Media: a content analysis of Twitter

    E-Print Network [OSTI]

    Fisher, Kathleen

    HISTORICIZING NEW MEDIA - 1 Historicizing New Media: a content analysis of Twitter Lee Humphreys Communication Association 2012 Annual Conference. Key Words: Twitter, diaries, accounting, new media, history, social media, personal writing, audience #12;HISTORICIZING NEW MEDIA - 2 Abstract This paper seeks

  15. MediaConnector: A Gestalt Media Sharing System Surjit Savji Patel

    E-Print Network [OSTI]

    Bove Jr., V. Michael

    by the Digital Life Consortium, MIT Media Lab and by Kodak Research and Development #12;- 3 - Media- 1 - MediaConnector: A Gestalt Media Sharing System By Surjit Savji Patel B.S.c (Hons) Computer Science Manchester University Manchester, United Kingdom 1992 Submitted to the Program in Media Arts

  16. Tenure-Track Assistant Professor of Digital Media (Games) School of Literature, Media, and Communication

    E-Print Network [OSTI]

    Tenure-Track Assistant Professor of Digital Media (Games) School of Literature, Media of media studies common to Digital Media; a demonstrated capacity for significant original research in game development. The Digital Media program in LMC covers three core areas-- Knowledge and Creativity

  17. The Seattle Central Library: Civic Architecture in the Age of Media [Media and the City

    E-Print Network [OSTI]

    Murphy, Amy

    2006-01-01T23:59:59.000Z

    other more immersive digital media. In much of the rhetoricarchitecture in an age of digital media by using spatiallyutopia. In the world of digital media, as exempli?ed in

  18. Composite media for ion processing

    DOE Patents [OSTI]

    Mann, Nick R. (Blackfoot, ID); Wood, Donald J. (Peshastin, WA); Todd, Terry A. (Aberdeen, ID); Sebesta, Ferdinand (Prague, CZ)

    2009-12-08T23:59:59.000Z

    Composite media, systems, and devices for substantially removing, or otherwise processing, one or more constituents of a fluid stream. The composite media comprise a plurality of beads, each having a matrix substantially comprising polyacrylonitrile (PAN) and supporting one or more active components which are effective in removing, by various mechanisms, one or more constituents from a fluid stream. Due to the porosity and large surface area of the beads, a high level of contact is achieved between composite media of the present invention and the fluid stream being processed. Further, the homogeneity of the beads facilitates use of the beads in high volume applications where it is desired to effectively process a large volume of flow per unit of time.

  19. News Media invited to interview Jefferson Lab summer science...

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

    JLab Media Advisory: News Media invited to interview Jefferson Lab summer science enrichment program participants; cover closing Poster Session July 29, 2005 News Media...

  20. Media Mentions | ornl.gov

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHighand Retrievals from a NewCuneoTechnologyCHPRC NewsMarch 4,5,MediaMedia

  1. Measuring large optical reflection matrices of turbid media

    E-Print Network [OSTI]

    Yu, Hyeonseung; Park, YongKeun

    2015-01-01T23:59:59.000Z

    We report the measurement of a large optical reflection matrix (RM) of a highly disordered medium. Incident optical fields onto a turbid sample are controlled by a spatial light modulator, and the corresponding fields reflected from the sample are measured using full-field Michelson interferometry. The number of modes in the measured RM is set to exceed the number of resolvable modes in the scattering media. We successfully study the subtle intrinsic correlations in the RM which agrees with the theoretical prediction by random-matrix theory when the effect of the limited numerical aperture on the eigenvalue distribution of the RM is taken into account. The possibility of the enhanced delivery of incident energy into scattering media is also examined from the eigenvalue distribution which promises efficient light therapeutic applications.

  2. Radiation trapping in coherent media

    E-Print Network [OSTI]

    A. B. Matsko; I. Novikova; M. O. Scully; G. R. Welch

    2001-01-31T23:59:59.000Z

    We show that the effective decay rate of Zeeman coherence, generated in a Rb87 vapor by linearly polarized laser light, increases significantly with the atomic density. We explain this phenomenon as the result of radiation trapping. Our study shows that radiation trapping must be taken into account to fully understand many electromagnetically induced transparency experiments with optically thick media.

  3. Optical Theorem in Nonlinear Media

    E-Print Network [OSTI]

    Li, Wei

    2015-01-01T23:59:59.000Z

    We consider the optical theorem for scattering of electromagnetic waves in nonlinear media. This result is used to obtain the power extinguished from a field by a nonlinear scatterer. The cases of second harmonic generation and the Kerr effect are studied in some detail. Applications to nonlinear apertureless scanning near-field optical microscopy are considered.

  4. MEDIA RELEASE 10 February 2011

    E-Print Network [OSTI]

    Pedersen, Tom

    If British Columbia ramps up production to become a major electricity exporter there is no guaranteeMEDIA RELEASE 10 February 2011 Report reveals gaps in BC's electricity export policy framework Solutions (PICS). The report, The Export Question: Designing Policy for British Columbia Electricity Trade

  5. Sea Level Rise Media Release

    E-Print Network [OSTI]

    Hu, Aixue

    Sea Level Rise Media Release Coverage Report 07/06/2009 Melting Ice Could Lead to Massive Waves 06/11/2009 Rising sea levels could see U.S. Atlantic coast cities make hard choices; Where to let Baltimore Chronicle & Sentinel, The 06/08/2009 Rapid rise in sea levels on East Coast predicted Pittsburgh

  6. Young people, new media and sport 

    E-Print Network [OSTI]

    Wong, Donna Shy Yun

    2009-07-06T23:59:59.000Z

    This thesis investigates how sport is employed in the new media age as mediated sport goes through the liminal phase of new media. Set against the contextual background of recurrent ‘moral panics’ that accompanied each ...

  7. CMS.801 Media in Transition, Fall 2004

    E-Print Network [OSTI]

    Ravel, Jeffrey S.

    This course centers on historical eras in which the form and function of media technologies were radically transformed. It includes consideration of the "Gutenberg Revolution," the rise of modern mass media, and the "digital ...

  8. Digital imaging tracing technology for print media

    E-Print Network [OSTI]

    Milne, Stewart William

    1997-01-01T23:59:59.000Z

    This thesis examines and analyzes the existing state of digital technology use in print media and the attitudes of those using the technology to develop a technology that would help prevent the unethical manipulation of images in mass media...

  9. How to Work With the Media Webinar

    Broader source: Energy.gov [DOE]

    How to Work With the Media Webinar, from the U.S. Department of Energy's Better Buildings Neighborhood Program.

  10. Biosciences Division Media Mentions | Clean Energy | ORNL

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

    Biosciences Division Publications Newsletters Organizational Charts Research Highlights Media Mentions Clean Energy Home | Science & Discovery | Clean Energy | Supporting...

  11. MEDIA ALERT August 12, 2014 New NIAR Ballistics Lab to hold Media Day/Open House

    E-Print Network [OSTI]

    MEDIA ALERT ­ August 12, 2014 New NIAR Ballistics Lab to hold Media Day/Open House What: The new entrance. When: Thursday, Aug. 14 Media Hour: 9-10 a.m. (media only) Live Fire: 10 a.m. Open House: 10:15 a

  12. NEW MEDIA LITERACY communication for sustainability

    E-Print Network [OSTI]

    Neirotti, Juan Pablo

    1 NEW MEDIA LITERACY communication for sustainability John Blewitt, Director of Lifelong Learning - its habitats and peoples - is derived from new and traditional media, it is imperative that any notion critical freedom', then we will perceive the media, traditional and new, as essential tools and instruments

  13. Decomposition of Electromagnetic Q and P Media

    E-Print Network [OSTI]

    Lindell, I V

    2015-01-01T23:59:59.000Z

    Two previously studied classes of electromagnetic media, labeled as those of Q media and P media, are decomposed according to the natural decomposition introduced by Hehl and Obukhov. Six special cases based on either non-existence or sole existence of the three Hehl-Obukhov components, are defined for both medium classes.

  14. Digital Media in History: Remediating Data and Narratives

    E-Print Network [OSTI]

    Tanaka, Stefan

    2009-01-01T23:59:59.000Z

    History and New Media Digital Media in History: Remediatingto think about how digital media help us to teach, research,history. The computer and digital media are terrific tools

  15. Media Relations Policy Responsible Administrative Unit: Office of the President

    E-Print Network [OSTI]

    with the media (i.e., print and online publications, television, radio and new media) be accurate, appropriateMedia Relations Policy Responsible Administrative Unit: Office of the President Policy Contact on media relations. 2.0 POLICY 2.1 Institutional Outreach to the Media: All announcements to the media from

  16. Transmission Lines Emulating Moving Media

    E-Print Network [OSTI]

    Vehmas, Joni; Tretyakov, Sergei

    2014-01-01T23:59:59.000Z

    In this paper, we show how the electromagnetic phenomena in moving magnetodielectric media can be emulated using artificial composite structures at rest. In particular, we introduce nonreciprocal periodically loaded transmission lines which support waves obeying the same rules as plane electromagnetic waves in moving media. Because the actual physical structure is at rest, in these transmission lines there are no fundamental limitations on the velocity values, which may take values larger than the speed of light or even complex values (considering complex amplitudes in the time-harmonic regime). An example circuit of a unit cell of a "moving" transmission line is presented and analyzed both numerically and experimentally. The special case of composite right/left handed host line is also studied numerically. Besides the fundamental interest, the study is relevant for potential applications in realizing engineered materials for various transformations of electromagnetic fields.

  17. Digital Media Tenure Track Position Georgia Tech's School of Literature, Media, and Communication (LMC), which provides diverse

    E-Print Network [OSTI]

    Li, Mo

    Digital Media Tenure Track Position Georgia Tech's School of Literature, Media, and Communication Digital Media tenure track position at the rank of Assistant Professor, beginning in the fall of 2013. We's Computational Media and Digital Media programs. A Ph.D. in an appropriate field is required (e.g. digital media

  18. FULL-SCALE TESTING OF ENHANCED MERCURY CONTROL TECHNOLOGIES FOR WET FGD SYSTEMS

    SciTech Connect (OSTI)

    D.K. McDonald; G.T. Amrhein; G.A. Kudlac; D. Madden Yurchison

    2003-05-07T23:59:59.000Z

    Wet flue gas desulfurization (wet FGD) systems are currently installed on about 25% of the coal-fired utility generating capacity in the U.S., representing about 15% of the number of coal-fired units. Depending on the effect of operating parameters such as mercury content of the coal, form of mercury (elemental or oxidized) in the flue gas, scrubber spray tower configuration, liquid-to-gas ratio, and slurry chemistry, FGD systems can provide cost-effective, near-term mercury emissions control options with a proven history of commercial operation. For boilers already equipped with FGD systems, the incremental cost of any vapor phase mercury removal achieved is minimal. To be widely accepted and implemented, technical approaches that improve mercury removal performance for wet FGD systems should also have low incremental costs and have little or no impact on operation and SO{sub 2} removal performance. The ultimate goal of the Full-scale Testing of Enhanced Mercury Control for Wet FGD Systems Program was to commercialize methods for the control of mercury in coal-fired electric utility systems equipped with wet flue gas desulfurization (wet FGD). The program was funded by the U.S. Department of Energy's National Energy Technology Laboratory, the Ohio Coal Development Office within the Ohio Department of Development, and Babcock & Wilcox. Host sites and associated support were provided by Michigan South Central Power Agency (MSCPA) and Cinergy. Field-testing was completed at two commercial coal-fired utilities with wet FGD systems: (1) MSCPA's 55 MW{sub e} Endicott Station and (2) Cinergy's 1300 MW{sub e} Zimmer Station. Testing was conducted at these two locations because of the large differences in size and wet scrubber chemistry. Endicott employs a limestone, forced oxidation (LSFO) wet FGD system, whereas Zimmer uses Thiosorbic{reg_sign} Lime (magnesium enhanced lime) and ex situ oxidation. Both locations burn Ohio bituminous coal.

  19. METAL MEDIA FILTERS, AG-1 SECTION FI

    SciTech Connect (OSTI)

    Adamson, D.

    2012-05-23T23:59:59.000Z

    One application of metal media filters is in various nuclear air cleaning processes including applications for protecting workers, the public and the environment from hazardous and radioactive particles. To support this application the development of the ASME AG-1 FI Standard on Metal Media has been under way for more than ten years. Development of the proposed section has required resolving several difficult issues associated with operating conditions (media velocity, pressure drop, etc.), qualification testing, and quality acceptance testing. Performance characteristics of metal media are dramatically different than the glass fiber media with respect to parameters like differential pressures, operating temperatures, media strength, etc. These differences make existing data for a glass fiber media inadequate for qualifying a metal media filter for AG-1. In the past much work has been conducted on metal media filters at facilities such as Lawrence Livermore National Laboratory (LLNL) and Savannah River National Laboratory (SRNL) to qualify the media as High Efficiency Particulate Air (HEPA) Filters. Particle retention testing has been conducted at Oak Ridge Filter Test Facility and at Air Techniques International (ATI) to prove that the metal media meets or exceeds the 99.97% particle retention required for a HEPA Filter. Even with his testing, data was lacking to complete an AG-1 FI Standard on metal media. With funding secured by Mississippi State University (MSU) from National Nuclear Security Administration (NNSA), a research test stand is being designed and fabricated at MSU's Institute for Clean Energy Technology (ICET) Facility to obtain qualification data on metal media. This in turn will support required data needed for the FI Standard. The paper will discuss in detail how the test stand at MSU will obtain the necessary data to complete the FI Standard.

  20. Sandia National Laboratories: News: Media Resources: Media Contacts

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > TheNuclearHomeland and Nuclear SecurityHomelandImage GalleryMedia

  1. MEDIA RELEASE 12 September 2012

    E-Print Network [OSTI]

    Pedersen, Tom

    to ensure we have the knowledge base required to reduce greenhouse gas emissions and foster a vibrant, low wind energy resources in western Canada · Developing floating offshore wind turbines for BC · Enhancing

  2. Media Resources | The Ames Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > The EnergyCenter (LMI-EFRC)MaRIETechnologies | BlandineMedia

  3. Media Mentions | Nuclear Science | ORNL

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHighand Retrievals from a NewCuneoTechnologyCHPRC NewsMarch 4,5,Media

  4. Social Media | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOriginEducationVideo »UsageSecretary ofSmallConfidential, 4/22/2013 2013Social Media SocialAbout

  5. Greentech Media | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating AGeothermal/ExplorationGoods | Open EnergyGreenrock EnergyGreentech Media

  6. Wave Propagation in Fractured Poroelastic Media

    E-Print Network [OSTI]

    2014-06-22T23:59:59.000Z

    Wave Propagation in Fractured. Poroelastic Media. WCCM, Barcelona, Spain, July 2014. Juan E. Santos,. 1. 1. Instituto del Gas y del Petr´oleo (IGPUBA), UBA,

  7. Video Stores, Media Technologies, and Memory

    E-Print Network [OSTI]

    Wilken, Rowan

    2010-01-01T23:59:59.000Z

    a collection entitled Mobile Technology & Place (Routledge,Identity,” in Mobile Technologies: From Telecommunicationsin an essay on mobile media technologies and memory, Nicola

  8. Diffusion Dominant Solute Transport Modelling In Deep Repository Under The Effect of Emplacement Media Degradation - 13285

    SciTech Connect (OSTI)

    Kwong, S. [National Nuclear Laboratory (United Kingdom)] [National Nuclear Laboratory (United Kingdom); Jivkov, A.P. [Research Centre for Radwaste and Decommissioning and Modelling and Simulation Centre, University of Manchester (United Kingdom)] [Research Centre for Radwaste and Decommissioning and Modelling and Simulation Centre, University of Manchester (United Kingdom)

    2013-07-01T23:59:59.000Z

    Deep geologic disposal of high activity and long-lived radioactive waste is being actively considered and pursued in many countries, where low permeability geological formations are used to provide long term waste contaminant with minimum impact to the environment and risk to the biosphere. A multi-barrier approach that makes use of both engineered and natural barriers (i.e. geological formations) is often used to further enhance the containment performance of the repository. As the deep repository system subjects to a variety of thermo-hydro-chemo-mechanical (THCM) effects over its long 'operational' lifespan (e.g. 0.1 to 1.0 million years, the integrity of the barrier system will decrease over time (e.g. fracturing in rock or clay)). This is broadly referred as media degradation in the present study. This modelling study examines the effects of media degradation on diffusion dominant solute transport in fractured media that are typical of deep geological environment. In particular, reactive solute transport through fractured media is studied using a 2-D model, that considers advection and diffusion, to explore the coupled effects of kinetic and equilibrium chemical processes, while the effects of degradation is studied using a pore network model that considers the media diffusivity and network changes. Model results are presented to demonstrate the use of a 3D pore-network model, using a novel architecture, to calculate macroscopic properties of the medium such as diffusivity, subject to pore space changes as the media degrade. Results from a reactive transport model of a representative geological waste disposal package are also presented to demonstrate the effect of media property change on the solute migration behaviour, illustrating the complex interplay between kinetic biogeochemical processes and diffusion dominant transport. The initial modelling results demonstrate the feasibility of a coupled modelling approach (using pore-network model and reactive transport model) to examine the long term behaviour of deep geological repositories with media property change under complex geochemical conditions. (authors)

  9. Foam Transport in Porous Media - A Review

    SciTech Connect (OSTI)

    Zhang, Z. F.; Freedman, Vicky L.; Zhong, Lirong

    2009-11-11T23:59:59.000Z

    Amendment solutions with or without surfactants have been used to remove contaminants from soil. However, it has drawbacks such that the amendment solution often mobilizes the plume, and its movement is controlled by gravity and preferential flow paths. Foam is an emulsion-like, two-phase system in which gas cells are dispersed in a liquid and separated by thin liquid films called lamellae. Potential advantages of using foams in sub-surface remediation include providing better control on the volume of fluids injected, uniformity of contact, and the ability to contain the migration of contaminant laden liquids. It is expected that foam can serve as a carrier of amendments for vadose zone remediation, e.g., at the Hanford Site. As part of the U.S. Department of Energy’s EM-20 program, a numerical simulation capability will be added to the Subsurface Transport Over Multiple Phases (STOMP) flow simulator. The primary purpose of this document is to review the modeling approaches of foam transport in porous media. However, as an aid to understanding the simulation approaches, some experiments under unsaturated conditions and the processes of foam transport are also reviewed. Foam may be formed when the surfactant concentration is above the critical micelle concentration. There are two main types of foams – the ball foam (microfoam) and the polyhedral foam. The characteristics of bulk foam are described by the properties such as foam quality, texture, stability, density, surface tension, disjoining pressure, etc. Foam has been used to flush contaminants such as metals, organics, and nonaqueous phase liquids from unsaturated soil. Ball foam, or colloidal gas aphrons, reportedly have been used for soil flushing in contaminated site remediation and was found to be more efficient than surfactant solutions on the basis of weight of contaminant removed per gram of surfactant. Experiments also indicate that the polyhedral foam can be used to enhance soil remediation. The transport of foam in porous media is complicated in that the number of lamellae present governs flow characteristics such as viscosity, relative permeability, fluid distribution, and interactions between fluids. Hence, foam is a non-Newtonian fluid. During transport, foam destruction and formation occur. The net result of the two processes determines the foam texture (i.e., bubble density). Some of the foam may be trapped during transport. According to the impacts of the aqueous and gas flow rates, foam flow generally has two regimes – weak and strong foam. There is also a minimum pressure gradient to initiate foam flow and a critical capillary for foam to be sustained. Similar to other fluids, the transport of foam is described by Darcy’s law with the exception that the foam viscosity is variable. Three major approaches to modeling foam transport in porous media are the empirical, semi-empirical, and mechanistic methods. Mechanistic approaches can be complete in principal but may be difficult to obtain reliable parameters, whereas empirical and semi-empirical approaches can be limited by the detail used to describe foam rheology and mobility. Mechanistic approaches include the bubble population-balance model, the network/percolation theory, the catastrophe theory, and the filtration theory. Among these methods, all were developed for modeling polyhedral foam with the exception that the method based on the filtration theory was for the ball foam (microfoam).

  10. Thermal Transport in Porous Media with Application to Fuel Cell Diffusion Media and Metal Foams

    E-Print Network [OSTI]

    Victoria, University of

    Thermal Transport in Porous Media with Application to Fuel Cell Diffusion Media and Metal Foams to Fuel Cell Diffusion Media and Metal Foams by Ehsan Sadeghi B.Sc., Sharif University of Technology, Iran make them excellent candidates for a variety of thermofluid applications including fuel cells, compact

  11. Coupled S waves in inhomogeneous weakly anisotropic media

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    media. The new proce- dure can be used to compute S waves propagating in smooth inhomogeneous isotropicCoupled S waves in inhomogeneous weakly anisotropic media using first-order ray tracing V or anisotropic media. In isotropic media, it reduces to standard S-wave ray tracing. In anisotropic media, it can

  12. UNIVERSITY OF CALIFORNIA, SANTA CRUZ DEPARTMENT OF FILM & DIGITAL MEDIA

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    UNIVERSITY OF CALIFORNIA, SANTA CRUZ DEPARTMENT OF FILM & DIGITAL MEDIA Lecturer Pool: Digital Media Production and Critical Studies The Film and Digital Media Department at the University courses in the area of digital media production and/or the critical study of digital media. Qualified

  13. Doug MacLellan 2014 Communication, Media and Film

    E-Print Network [OSTI]

    that combines a social sciences, theory based format with digital media production. This makes our program Honours Program in Digital Journalism and Communication, Media and Film and other Combined Honours, Media and Film such as new media and digital culture; digital media production; popular culture

  14. Mass Media Minor Requirements (total 20 credits) Prerequisites

    E-Print Network [OSTI]

    Bates, Rebecca A.

    in Mass Media · MASS 334 (04) Writing and Speaking For Broadcast · MASS 351 (04) Digital Imaging For Mass Media · MASS 360 (04) Digital Design For Mass Media · MASS 412 (04) Mass Media History · MASS 431 (04Mass Media Minor Requirements (total 20 credits) Prerequisites: · MASS 110 Introduction to Mass

  15. MediaBench II Jason Fritts

    E-Print Network [OSTI]

    Fritts, Jason

    recognition Security MD5, IDEA, DES, RSA Graphics Rendering, Lighting, Shading #12;Applications MPEG-2: video industry for computer architecture and compiler research Why a Consortium? Facilitate continual updates of MediaBench, enabling MediaBench to better characterize multimedia and communications industry Ensure

  16. MEDIA RELEASE NEW ERA BEGINS AS

    E-Print Network [OSTI]

    Peters, Richard

    MEDIA RELEASE NEW ERA BEGINS AS THE AGE AND THE SYDNEY MORNING HERALD COMPACT EDITIONS ARE LAUNCHED Media CEO, Jack Matthews, said. As the presses rolled on the new weekday The Age and Herald, new -biggest change ever undertaken by Fairfax- -new format is easier to pick up, harder to put down- March 4

  17. A Transmission Control Framework Continuous Media

    E-Print Network [OSTI]

    Whitton, Mary C.

    Rights Reserved #12;ABSTRACT A Transmission Control Framework for Continuous Media (Under the directionA Transmission Control Framework for Continuous Media by Terry Michael Talley A dissertation by integrating real-time two-way audio and video with the computer system. Unfortunately, the quality of video

  18. ON DIFFUSION IN HETEROGENEOUS MEDIA YOUXUE ZHANG*,

    E-Print Network [OSTI]

    Liu, Liping

    , heterogeneous media, multi-mineral rocks, multi-phase media, composite materials, kinetics, porous rocks to bulk diffusion, and porous materials (such as plants, soil, rock with partial melt or fluid, sediment of air and moisture in soils, drying of paint, wood, and concrete, diffusion of gases in rubber, movement

  19. Internship -Fall 2011 Search Solutions Digital Media

    E-Print Network [OSTI]

    Cinabro, David

    Internship - Fall 2011 Search Solutions Digital Media SSdigitalmedia.com About us: Search Solutions Search Solutions Digital Media 1500 N. Stephenson HWY Royal Oak, MI 48067 Amanda are a full service digital advertising agency. We build custom web packages to meet our clients' exact needs

  20. Digital reverse propagation in focusing Kerr media

    SciTech Connect (OSTI)

    Goy, Alexandre; Psaltis, Demetri [Laboratoire d'Optique, School of Engineering, Ecole Polytechnique Federale de Lausanne (Switzerland)

    2011-03-15T23:59:59.000Z

    Lenses allow the formation of clear images in homogeneous linear media. Holography is an alternative imaging method, but its use is limited to cases in which it provides an advantage, such as three-dimensional imaging. In nonlinear media, lenses no longer work. The light produces intensity-dependent aberrations. The reverse propagation method used in digital holography to form images from recorded holograms works even in Kerr media [M. Tsang, D. Psaltis, and F. G. Omenetto, Opt. Lett. 28, 1873 (2003).]. The principle has been experimentally demonstrated recently in defocusing media [C. Barsi, W.Wan, and J.W. Fleischer, Nat. Photonics 3, 211 (2009).]. Here, we report experimental results in focusing media.

  1. U.S. Navy Social Media Registration Checklist December 2013

    E-Print Network [OSTI]

    1 U.S. Navy Social Media Registration Checklist December 2013 Thank you for your interest in registering with the Navy's social media directory. Before you contact the Navy's Emerging Media Team at 703- 614-9154 or usnsocialmedia

  2. Special Section: New Media in International Contexts Introduction

    E-Print Network [OSTI]

    Horst, Heather A.; Wallis, Cara

    2011-01-01T23:59:59.000Z

    Youth, identity and digital media (pp. 119–142). Cambridge,Youth, identity and digital media. Cambridge, MA: MIT Press.Working Group” at the Digital Media and Learning Research

  3. Plasmon Enhanced Photoemission

    E-Print Network [OSTI]

    Polyakov, Aleksandr

    2013-01-01T23:59:59.000Z

    56 SPP Surface Plasmon7 SPR Surface Plasmon Resonance . . . . . .Quantum Efficiency . . . 1.3 Plasmon Enhancement . . . . .

  4. Application for CHE-CCE 2013 Summer Internship Title of project: Use of Social Media and Mobile Technology

    E-Print Network [OSTI]

    Keinan, Alon

    of mobile technology, The ultimate goal of the project will be a pilot test of weekly messages sent via medial and mobile technology for enhancing the direct nutrition education currently provided via EFNEPApplication for CHE-CCE 2013 Summer Internship Title of project: Use of Social Media and Mobile

  5. Social Media, Social Kids: Sociocultural Implications of 21st Century Media for Development in the Preteen Period.

    E-Print Network [OSTI]

    Tehranian, Yalda

    2013-01-01T23:59:59.000Z

    Foundation Series on Digital Media and Learning (1st ed. ).connected: The new digital media habits of young children.Foundation Series on Digital Media and Learning (1st ed. ).

  6. Integrated Energy Systems Multi-Media Webcast: Three CHP Sites...

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

    Multi-Media Webcast: Three CHP Sites Yield Important Lessons Learned, September 2005 Integrated Energy Systems Multi-Media Webcast: Three CHP Sites Yield Important Lessons Learned,...

  7. Determination of Water Saturation in Relatively Dry Porous Media...

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

    Water Saturation in Relatively Dry Porous Media Using Gas-phase Tracer Tests. Determination of Water Saturation in Relatively Dry Porous Media Using Gas-phase Tracer Tests....

  8. Consumer Light Bulb Changes: Briefing and Resources for Media...

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

    Consumer Light Bulb Changes: Briefing and Resources for Media and Retailers Consumer Light Bulb Changes: Briefing and Resources for Media and Retailers This presentation provides...

  9. Project Profile: Sensible Heat, Direct, Dual-Media Thermal Energy...

    Energy Savers [EERE]

    Sensible Heat, Direct, Dual-Media Thermal Energy Storage Module Project Profile: Sensible Heat, Direct, Dual-Media Thermal Energy Storage Module Acciona logo Acciona Solar, under...

  10. acidic phosphoric media: Topics by E-print Network

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

    optics of spatial transformation media CERN Preprints Summary: We show how transformation media J. B. Pendry, D. Schurig, and D. R. Smith, Science 312, 1780 (2006); U. Leonhardt...

  11. alkaline media simulating: Topics by E-print Network

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

    optics of spatial transformation media CERN Preprints Summary: We show how transformation media J. B. Pendry, D. Schurig, and D. R. Smith, Science 312, 1780 (2006); U. Leonhardt...

  12. aqueous media estudio: Topics by E-print Network

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

    optics of spatial transformation media CERN Preprints Summary: We show how transformation media J. B. Pendry, D. Schurig, and D. R. Smith, Science 312, 1780 (2006); U. Leonhardt...

  13. alcoholic fermentation media: Topics by E-print Network

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

    in Rough Media Mathematics Websites Summary: Concentration of Eigenfunctions in Rough Media Hart F. Smith Department of Mathematics University of Washington, Seattle UC Irvine...

  14. aqueous media treatment: Topics by E-print Network

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

    optics of spatial transformation media CERN Preprints Summary: We show how transformation media J. B. Pendry, D. Schurig, and D. R. Smith, Science 312, 1780 (2006); U. Leonhardt...

  15. ammoniacal leaching media: Topics by E-print Network

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

    optics of spatial transformation media CERN Preprints Summary: We show how transformation media J. B. Pendry, D. Schurig, and D. R. Smith, Science 312, 1780 (2006); U. Leonhardt...

  16. aqueous nitrate media: Topics by E-print Network

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

    optics of spatial transformation media CERN Preprints Summary: We show how transformation media J. B. Pendry, D. Schurig, and D. R. Smith, Science 312, 1780 (2006); U. Leonhardt...

  17. aggressive media exposed: Topics by E-print Network

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

    optics of spatial transformation media CERN Preprints Summary: We show how transformation media J. B. Pendry, D. Schurig, and D. R. Smith, Science 312, 1780 (2006); U. Leonhardt...

  18. acetic acid media: Topics by E-print Network

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

    optics of spatial transformation media CERN Preprints Summary: We show how transformation media J. B. Pendry, D. Schurig, and D. R. Smith, Science 312, 1780 (2006); U. Leonhardt...

  19. aqueous media catalyzed: Topics by E-print Network

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

    optics of spatial transformation media CERN Preprints Summary: We show how transformation media J. B. Pendry, D. Schurig, and D. R. Smith, Science 312, 1780 (2006); U. Leonhardt...

  20. acidic sulfate media: Topics by E-print Network

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

    optics of spatial transformation media CERN Preprints Summary: We show how transformation media J. B. Pendry, D. Schurig, and D. R. Smith, Science 312, 1780 (2006); U. Leonhardt...

  1. abiotic media upgradient: Topics by E-print Network

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

    optics of spatial transformation media CERN Preprints Summary: We show how transformation media J. B. Pendry, D. Schurig, and D. R. Smith, Science 312, 1780 (2006); U. Leonhardt...

  2. News Media invited to interview Jefferson Lab summer science...

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

    News Media invited to interview Jefferson Lab summer science enrichment program participants; cover closing Poster Session August 1, 2007 News Media representatives are invited to...

  3. Information storage media and method

    DOE Patents [OSTI]

    Miller, Steven D. (Richland, WA); Endres, George W. (Richland, WA)

    1999-01-01T23:59:59.000Z

    Disclosed is a method for storing and retrieving information. More specifically, the present invention is a method for forming predetermined patterns, or data structures, using materials which exhibit enhanced absorption of light at certain wavelengths or, when interrogated with a light having a first wavelength, provide a luminescent response at a second wavelength. These materials may exhibit this response to light inherently, or may be made to exhibit this response by treating the materials with ionizing radiation.

  4. Optically generated ultrasound for enhanced drug delivery

    DOE Patents [OSTI]

    Visuri, Steven R. (Livermore, CA); Campbell, Heather L. (Baltimore, MD); Da Silva, Luiz (Danville, CA)

    2002-01-01T23:59:59.000Z

    High frequency acoustic waves, analogous to ultrasound, can enhance the delivery of therapeutic compounds into cells. The compounds delivered may be chemotherapeutic drugs, antibiotics, photodynamic drugs or gene therapies. The therapeutic compounds are administered systemically, or preferably locally to the targeted site. Local delivery can be accomplished through a needle, cannula, or through a variety of vascular catheters, depending on the location of routes of access. To enhance the systemic or local delivery of the therapeutic compounds, high frequency acoustic waves are generated locally near the target site, and preferably near the site of compound administration. The acoustic waves are produced via laser radiation interaction with an absorbing media and can be produced via thermoelastic expansion, thermodynamic vaporization, material ablation, or plasma formation. Acoustic waves have the effect of temporarily permeabilizing the membranes of local cells, increasing the diffusion of the therapeutic compound into the cells, allowing for decreased total body dosages, decreased side effects, and enabling new therapies.

  5. Circular polarization memory in polydisperse scattering media

    E-Print Network [OSTI]

    Macdonald, Callum M; Meglinski, Igor

    2015-01-01T23:59:59.000Z

    We investigate the survival of circularly polarized light in random scattering media. The surprising persistence of this form of polarization has a known dependence on the size and refractive index of scattering particles, however a general description regarding polydisperse media is lacking. Through analysis of Mie theory, we present a means of calculating the magnitude of circular polarization memory in complex media, with total generality in the distribution of particle sizes and refractive indices. Quantification of this memory effect enables an alternate pathway towards recovering particle size distribution, based on measurements of diffusing circularly polarized light.

  6. Morf - Towards Next Generation Digital Media Management

    SciTech Connect (OSTI)

    Almquist, Justin P.; Connell, Linda M.; Johns, Zoe C.; Dillon, Heather E.; Elliott, Geoffrey

    2005-07-27T23:59:59.000Z

    The Morf project is developing next generation digital media management technologies by incorporating features of traditional systems such as digital libraries, knowledge bases, and content management systems. In particular, Morf supports fine-grained content management by allowing text, graphics, or any media to be reused throughout the system, which creates for a ?change once, permeate everywhere? environment. Additionally, Morf provides searching and browsing capabilities of multiple media types across internal and external content. This paper describes the requirements, design, and implementation of Morf and presents three web tools currently driven by the Morf platform.

  7. Centrifuge Techniques and Apparatus for Transport Experiments in Porous Media

    SciTech Connect (OSTI)

    Earl D. Mattson; Carl D. Paler; Robert W. Smith; Markus Flury

    2010-06-01T23:59:59.000Z

    This paper describes experimental approaches and apparatus that we have developed to study solute and colloid transport in porous media using Idaho National Laboratory's 2-m radius centrifuge. The ex-perimental techniques include water flux scaling with applied acceleration at the top of the column and sub-atmospheric pressure control at the column base, automation of data collection, and remote experimental con-trol over the internet. These apparatus include a constant displacement piston pump, a custom designed liquid fraction collector based on switching valve technology, and modified moisture monitoring equipment. Suc-cessful development of these experimental techniques and equipment is illustrated through application to transport of a conservative tracer through unsaturated sand column, with centrifugal acceleration up to 40 gs. Development of such experimental equipment that can withstand high accelerations enhances the centrifuge technique to conduct highly controlled unsaturated solute/colloid transport experiments and allows in-flight liquid sample collection of the effluent.

  8. Sulfur Impregnation on Activated Carbon Fibers through H2S Oxidation for Vapor Phase

    E-Print Network [OSTI]

    Borguet, Eric

    surface in a fixed-bed reactor. By changing the temperature and duration of the sulfur impregnation mercury adsorption experiments were carried out in a fixed-bed reactor. Sulfur was impregnated mainly a fixed-bed adsorber at room temperature decreased with an increase in sulfur content. Such behavior

  9. Bundles of carbon nanotubes generated by vapor-phase growth Maohui Ge and Klaus Sattler

    E-Print Network [OSTI]

    Sattler, Klaus

    show that another hollow carbon structure is possible to form under such high density conditions. We report the observation of assemblies of carbon nano- tubes in the form of bundles. The bundles. It is located horizontally on the flat graphite substrate. It is separated from other deposited carbon nano

  10. Supporting information Vapor Phase Synthesis of Single-Crystalline Ag Nanowires and Single-

    E-Print Network [OSTI]

    Ihee, Hyotcherl

    of a 1 inch diameter horizontal quartz tube furnace. The NWs were grown at about 3-4 cm down-stream from downstream by the flow of 500 sccm of argon gas at a pressure of 5 to 10 Torr to a lower temperature zone (T2

  11. A NOVEL VAPOR-PHASE PROCESS FOR DEEP DESULFURIZATION OF NAPHTHA/DIESEL

    SciTech Connect (OSTI)

    B.S. Turk; R.P. Gupta; S.K. Gangwal

    2003-06-30T23:59:59.000Z

    Tier 2 regulations issued by the U.S. Environmental Protection Agency (EPA) require a substantial reduction in the sulfur content of gasoline. Similar regulations have been enacted for the sulfur level in on-road diesel and recently off-road diesel. The removal of this sulfur with existing and installed technology faces technical and economic challenges. These challenges created the opportunity for new emerging technologies. Research Triangle Institute (RTI) with subcontract support from Kellogg Brown & Root, Inc., (KBR) used this opportunity to develop RTI's transport reactor naphtha desulfurization (TReND) process. Starting with a simple conceptual process design and some laboratory results that showed promise, RTI initiated an accelerated research program for sorbent development, process development, and marketing and commercialization. Sorbent development has resulted in the identification of an active and attrition resistant sorbent that has been prepared in commercial equipment in 100 lb batches. Process development has demonstrated both the sulfur removal performance and regeneration potential of this sorbent. Process development has scaled up testing from small laboratory to pilot plant transport reactor testing. Testing in the transport reactor pilot plant has demonstrated the attrition resistance, selective sulfur removal activity, and regeneration activity of this sorbent material. Marketing and commercialization activities have shown with the existing information that the process has significant capital and operating cost benefits over existing and other emerging technologies. The market assessment and analysis provided valuable feedback about the testing and performance requirements for the technical development program. This market analysis also provided a list of potential candidates for hosting a demonstration unit. Although the narrow window of opportunity generated by the new sulfur regulations and the conservative nature of the refining industry slowed progress of the demonstration unit, negotiations with potential partners are proceeding for commercialization of this process.

  12. Vapor-Phase Metalation by Atomic Layer Deposition in a Metal-Organic Framework

    E-Print Network [OSTI]

    encompass deposition onto micro- and nanopowders14 and coating of nanoparticle films15 as well as aerogel coating of porous materials that exhibit ultrahigh-aspect ratios.12,13 To date, some striking examples

  13. The role of polymer formation during vapor phase lubrication of silicon.

    SciTech Connect (OSTI)

    Dugger, Michael Thomas; Dirk, Shawn M.; Ohlhausen, James Anthony

    2010-10-01T23:59:59.000Z

    The lubrication of silicon surfaces with alcohol vapors has recently been demonstrated. With a sufficient concentration of pentanol vapor present, sliding of a silica ball on an oxidized silicon wafer can proceed with no measurable wear. The initial results of time-of-flight secondary ion mass spectrometry (ToF-SIMS) analysis of wear surfaces revealed a reaction product having thickness on the order of a monolayer, and with an ion spectrum that included fragments having molecular weights of 200 or more that occurred only inside the wear tracks. The parent alcohol molecule pentanol, has molecular weight of 88amu, suggesting that reactions of adsorbed alcohols on the wearing surfaces allowed polymerization of the alcohols to form higher molecular weight species. In addition to pin-on-disk studies, lubrication of silicon surfaces with pentanol vapors has also been demonstrated using MicroElectroMechanical Systems (MEMS) devices. Recent investigations of the reaction mechanisms of the alcohol molecules with the oxidized silicon surfaces have shown that wearless sliding requires a concentration of the alcohol vapor that is dependent upon the contact stress during sliding, with higher stress requiring a greater concentration of alcohol. Different vapor precursors including those with acid functionality, olefins, and methyl termination also produce polymeric reaction products, and can lubricate the silica surfaces. Doping the operating environment with oxygen was found to quench the formation of the polymeric reaction product, and demonstrates that polymer formation is not necessary for wearless sliding.

  14. Chirality-Dependent Vapor-Phase Epitaxial Growth and Termination of Single-Wall Carbon Nanotubes

    E-Print Network [OSTI]

    Zhou, Chongwu

    cylinders from graphene sheets.1 The structure of a SWCNT is uniquely determined by a pair of integers, (n and optical characteristics of SWCNTs rely on their chiralities,2,3 and chirality-controlled preparation

  15. Liquid-phase and vapor-phase dehydration of organic/water solutions

    DOE Patents [OSTI]

    Huang, Yu (Palo Alto, CA); Ly, Jennifer (San Jose, CA); Aldajani, Tiem (San Jose, CA); Baker, Richard W. (Palo Alto, CA)

    2011-08-23T23:59:59.000Z

    Processes for dehydrating an organic/water solution by pervaporation or vapor separation using fluorinated membranes. The processes are particularly useful for treating mixtures containing light organic components, such as ethanol, isopropanol or acetic acid.

  16. NOVEL PROCESS FOR REMOVAL AND RECOVERY OF VAPOR-PHASE MERCURY

    SciTech Connect (OSTI)

    Craig S. Turchi

    2000-09-29T23:59:59.000Z

    The goal of this project is to investigate the use of a regenerable sorbent for removing and recovering mercury from the flue gas of coal-fired power plants. The process is based on the sorption of mercury by noble metals and the thermal regeneration of the sorbent, recovering the desorbed mercury in a small volume for recycling or disposal. The project was carried out in two phases, covering five years. Phase I ran from September 1995 through September 1997 and involved development and testing of sorbent materials and field tests at a pilot coal-combustor. Phase II began in January 1998 and ended September 2000. Phase II culminated with pilot-scale testing at a coal-fired power plant. The use of regenerable sorbents holds the promise of capturing mercury in a small volume, suitable for either stable disposal or recycling. Unlike single-use injected sorbents such as activated carbon, there is no impact on the quality of the fly ash. During Phase II, tests were run with a 20-acfm pilot unit on coal-combustion flue gas at a 100 lb/hr pilot combustor and a utility boiler for four months and six months respectively. These studies, and subsequent laboratory comparisons, indicated that the sorbent capacity and life were detrimentally affected by the flue gas constituents. Sorbent capacity dropped by a factor of 20 to 35 during operations in flue gas versus air. Thus, a sorbent designed to last 24 hours between recycling lasted less than one hour. The effect resulted from an interaction between SO{sub 2} and either NO{sub 2} or HCl. When SO{sub 2} was combined with either of these two gases, total breakthrough was seen within one hour in flue gas. This behavior is similar to that reported by others with carbon adsorbents (Miller et al., 1998).

  17. Sulfurization of carbon surface for vapor phase mercury removal I: Effect of temperature and sulfurization protocol

    E-Print Network [OSTI]

    Borguet, Eric

    with the decomposition of surface functionalities, which creates active sites for sulfur bonding. The presence of H2S2S adsorption, and that surface chemistry played a significant role in the uptake of H2S. Mikhalovsky and Zaitsev [9] showed that H2S adsorption from an inert atmosphere on activated carbons resulted

  18. The particulate and vapor phase components of airborne polyaromatic hydrocarbons (PAHs) in coal gasification pilot plants

    E-Print Network [OSTI]

    Brink, Eric Jon

    1980-01-01T23:59:59.000Z

    sources. Technologies with some promise of fulfilling this need include solar power, laser fusion, nuclear fission, nuclear fusion, geothermal power, wind power, wave power, hydr oelectric power, oil shale, tar sands, and coal conversion. Although...

  19. Desalination-of water by vapor-phase transport through hydrophobic nanopores

    E-Print Network [OSTI]

    Lee, Jongho

    We propose a new approach to desalination of water whereby a pressure difference across a vapor-trapping nanopore induces selective transport of water by isothermal evaporation and condensation across the pore. Transport ...

  20. Interrupted Energy Transfer: Highly Selective Detection of Cyclic Ketones in the Vapor Phase

    E-Print Network [OSTI]

    Swager, Timothy Manning

    We detail our efforts toward the selective detection of cyclic ketones, e.g. cyclohexanone, a component of plasticized explosives. Thin films comprised of a conjugated polymer are used to amplify the emission of an emissive ...

  1. Vapor phase ketonization of acetic acid on ceria based metal oxides

    SciTech Connect (OSTI)

    Liu, Changjun; Karim, Ayman M.; Lebarbier, Vanessa MC; Mei, Donghai; Wang, Yong

    2013-12-01T23:59:59.000Z

    The activities of CeO2, Mn2O3-CeO2 and ZrO2-CeO2 were measured for acetic acid ketonization under reaction conditions relevant to pyrolysis vapor upgrading. We show that the catalyst ranking changed depending on the reaction conditions. Mn2O3-CeO2 was the most active catalyst at 350 oC, while ZrO2 - CeO2 was the most active catalyst at 450 oC. Under high CO2 and steam concentration in the reactants, Mn2O3-CeO2 was the most active catalyst at 350 and 450 °C. The binding energies of steam and CO2 with the active phase were calculated to provide the insight into the tolerance of Mn2O3-CeO2 to steam and CO2.

  2. Manipulation and abuse on social media

    E-Print Network [OSTI]

    Ferrara, Emilio

    2015-01-01T23:59:59.000Z

    The computer science research community has became increasingly interested in the study of social media due to their pervasiveness in the everyday life of millions of individuals. Methodological questions and technical challenges abound as more and more data from social platforms become available for analysis. This data deluge not only yields the unprecedented opportunity to unravel questions about online individuals' behavior at scale, but also allows to explore the potential perils that the massive adoption of social media brings to our society. These communication channels provide plenty of incentives (both economical and social) and opportunities for abuse. As social media activity became increasingly intertwined with the events in the offline world, individuals and organizations have found ways to exploit these platforms to spread misinformation, to attack and smear others, or to deceive and manipulate. During crises, social media have been effectively used for emergency response, but fear-mongering acti...

  3. Crowdsourcing affective responses for predicting media effectiveness

    E-Print Network [OSTI]

    McDuff, Daniel Jonathan

    2014-01-01T23:59:59.000Z

    Emotion is key to the effectiveness of media, whether it be in influencing memory, likability or persuasion. Stories and narratives, even if fictional, have the ability to induce a genuine emotional response. However, the ...

  4. Social media analytics in business intelligence applications

    E-Print Network [OSTI]

    Lo, Bobby

    2008-01-01T23:59:59.000Z

    Social media is becoming increasingly important in society and culture, empowering consumers to group together on common interests and share opinions through the Internet. The social web shifts the originators of content ...

  5. Global Social Media Directory: A Resource Guide

    SciTech Connect (OSTI)

    Noonan, Christine F.; Piatt, Andrew W.

    2014-10-23T23:59:59.000Z

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

  6. Commercialization of bit-patterned media

    E-Print Network [OSTI]

    Esterina, Ria

    2009-01-01T23:59:59.000Z

    Realm of data storage density has expanded from gigabyte- to terabyte-domain. In such a high areal density, bit-patterned media is a promising candidate to overcome the superparamagnetic limit faced by the conventional ...

  7. Video Stores, Media Technologies, and Memory

    E-Print Network [OSTI]

    Wilken, Rowan

    2010-01-01T23:59:59.000Z

    Deb Verhoeven, “Film, Video, DVD and Media Fields Journal133-154. 17 Paul McDonald, Video and DVD Industries (London:BFI, 2007). 18 McDonald, Video and DVD Industries, 109. 19

  8. Nonlinear properties of dense coherent media

    E-Print Network [OSTI]

    Mikhailov, Eugeniy Eugenievich

    2004-09-30T23:59:59.000Z

    as to style and content by: George R. Welch (Chair of Committee) Edward S. Fry (Member) M. Suhail Zubairy (Member) Paul S. Cremer (Member) Edward S. Fry (Head of Department) August 2003 Major Subject: Physics iii ABSTRACT Nonlinear Properties of Dense Coherent... Media. (August 2003) Eugeniy Eugenievich Mikhailov, B.S., Moscow State Engineering Physics Institute Chair of Advisory Committee: Dr. George R. Welch Properties of coherent media in the regime of electromagnetically induced trans- parency (EIT...

  9. Characterization of naturally occurring porous media

    E-Print Network [OSTI]

    Riley, Robert Daniel

    1965-01-01T23:59:59.000Z

    characteristics of natural occur- ring porous media, The gR /K dimensionless ratio is related to the minimum water saturation in the reverse manner as is permeability. REFERENCES Wyllie, M. R. J. and M. B. Spangler: Application of Electrical Resistivity...: Resistivity of Brine-Saturated Sands in Relation to Pore Seometry. Cornell, D. snd D. L. Kstz: Flow of Sases through Consolidated Porous Media. Industrial and En ineeri hemietr (October 1953) Vo . 5, p. 21 5. Leverett, N, C. : Capillary Behavior...

  10. Master of Communication Studies New Media and Society in Europe

    E-Print Network [OSTI]

    Einmahl, Uwe

    Master of Communication Studies New Media and Society in Europe A one-year programme in English-year (60 ECTS) academic master with a focus on New Media and Society in Europe. This English language/or user aspects of new media. Digitisation of media, the emergence of the Internet and the mobile

  11. Fluid Flow and Infiltration in Structured Fibrous Porous Media

    SciTech Connect (OSTI)

    Papathanasiou, Thanasis D.

    2006-08-09T23:59:59.000Z

    Present the results of an extensive computational investigation of flow through structured fibrous media.

  12. Multiscale Modeling and Simulation of Fluid Flows in Inelastic Media

    E-Print Network [OSTI]

    Popov, Peter

    in porous media (e.g. soil), Elasticity equations in heterogeneous media (concrete, asphalt), etc porous media s The Fluid-Structure interaction (FSI) problem at the microscale and numerical methods with computational solutions s Numerical upscaling of flow in deformable porous media #12;- p. 3/42 Why homogenize

  13. Method for enhancing microbial utilization rates of gases using perfluorocarbons

    DOE Patents [OSTI]

    Turick, Charles E. (Idaho Falls, ID)

    1997-01-01T23:59:59.000Z

    A method of enhancing the bacterial reduction of industrial gases using perfluorocarbons (PFCs) is disclosed. Because perfluorocarbons (PFCs) allow for a much greater solubility of gases than water does, PFCs have the potential to deliver gases in higher concentrations to microorganisms when used as an additive to microbial growth media thereby increasing the rate of the industrial gas conversion to economically viable chemicals and gases.

  14. Method for enhancing microbial utilization rates of gases using perfluorocarbons

    DOE Patents [OSTI]

    Turick, C.E.

    1997-06-10T23:59:59.000Z

    A method of enhancing the bacterial reduction of industrial gases using perfluorocarbons (PFCs) is disclosed. Because perfluorocarbons (PFCs) allow for a much greater solubility of gases than water does, PFCs have the potential to deliver gases in higher concentrations to microorganisms when used as an additive to microbial growth media thereby increasing the rate of the industrial gas conversion to economically viable chemicals and gases. 3 figs.

  15. Magnetic levitation of metamaterial bodies enhanced with magnetostatic surface resonances

    E-Print Network [OSTI]

    Urzhumov, Yaroslav; Bingham, Chris; Padilla, Willie; Smith, David R

    2011-01-01T23:59:59.000Z

    We propose that macroscopic objects built from negative-permeability metamaterials may experience resonantly enhanced magnetic force in low-frequency magnetic fields. Resonant enhancement of the time-averaged force originates from magnetostatic surface resonances (MSR) which are analogous to the electrostatic resonances of negative-permittivity particles, well known as surface plasmon resonances in optics. We generalize the classical problem of MSR of a homogeneous object to include anisotropic metamaterials, and consider the most extreme case of anisotropy where the permeability is negative in one direction but positive in the others. It is shown that deeply subwavelength objects made of such indefinite (hyperbolic) media exhibit a pronounced magnetic dipole resonance that couples strongly to uniform or weakly inhomogeneous magnetic field and provides strong enhancement of the magnetic force, enabling applications such as enhanced magnetic levitation.

  16. The Department of English, Comparative Literature, and Linguistics NEW MEDIA/LEGACY MEDIA

    E-Print Network [OSTI]

    de Lijser, Peter

    The Department of English, Comparative Literature, and Linguistics Presents: NEW MEDIA/LEGACY MEDIA in New York. After earning her MFA in film and television at UCLA, she began producing drama in Los Angeles, New York, and Cincinnati. Professor Lewis has served as a juror for the CINE Golden Eagle

  17. Technische Universitat Munchen, Institute for Media Technology Massachussets Institute of Technology, Media Lab

    E-Print Network [OSTI]

    Technische Universit¨at M¨unchen, Institute for Media Technology Massachussets Institute of Technology, Media Lab Prof. Dr.-Ing. Eckehard Steinbach Prof. Joseph A. Paradiso, PhD Diplomarbeit Fusion of implementation. µ Thanks to Bo for his programming tips. µ Thanks to Spinner to fill useless free time slots. µ

  18. Isotope Specific Remediation Media and Systems - 13614

    SciTech Connect (OSTI)

    Denton, Mark S.; Mertz, Joshua L. [Kurion, Inc. Oak Ridge, Tennessee 37831 (United States)] [Kurion, Inc. Oak Ridge, Tennessee 37831 (United States); Morita, Keisuke [Japan Atomic Energy Agency, Tokai Research and Development Center, Fukushima Project Team, Tokai-mura, Ibaraki-ken, 319-1195 (Japan)] [Japan Atomic Energy Agency, Tokai Research and Development Center, Fukushima Project Team, Tokai-mura, Ibaraki-ken, 319-1195 (Japan)

    2013-07-01T23:59:59.000Z

    On March 11, 2011, now two years ago, the magnitude 9.0 Great East Japan earthquake, Tohoku, hit off the Fukushima coast of Japan. While, of course, most of the outcome of this unprecedented natural and manmade disaster was a negative, both in Japan and worldwide, there have been some extremely invaluable lessons learned and new emergency recovery technologies and systems developed. As always, the mother of invention is necessity. Among these developments has been the development and full-scale implementation of proven isotope specific media (ISMs) with the intent of surgically removing specific hazardous isotopes for the purpose of minimizing dose to workers and the environment. The first such ISMs to be deployed at the Fukushima site were those removing cesium (Cs-137) and iodine (I-129). Since deployment on June 17, 2011, along with treated cooling water recycle, some 70% of the curies in the building liquid wastes have been removed by the Kurion system alone. The current levels of cesium are now only 2% of the original levels. Such an unprecedented, 'external cooling system' not only allowed the eventual cold shut down of the reactors in mid-December, 2011, but has allowed workers to concentrate on the cleanup of other areas of the site. Water treatment will continue for quite some time due to continued leakage into the buildings and the eventual goal of cleaning up the reactors and fuel pools themselves. With the cesium removal now in routine operation, other isotopes of concern are likely to become priorities. One such isotope is that of strontium, and yttrium (Sr-90 and Y-90), which is still at original levels causing further dose issues as well as impediments to discharge of the treated waste waters. For over a year now, a new synthetic strontium specific media has been under development and testing both in our licensed facility in Oak Ridge, Tennessee, but also in confirmatory tests by the Japan Atomic Energy Agency (JAEA) in Japan for Tokyo Electric Power Company (TEPCO). The tests have proven quite successful, even in high salt conditions, and, with loading and dose calculations being completed, will be proposed to add to the existing cesium system. There is no doubt, as high gamma isotopes are removed, other recalcitrant isotopes such as this will require innovative removal media, systems and techniques. Also coming out of this international effort are other ISM media and systems that can be applied more broadly to both Commercial Nuclear Power Plants (NPPs) as well as in Department of Energy (DOE) applications. This cesium and strontium specific media has further been successfully tested in 2012 at a Magnox station in the UK. The resulting proposed mitigation systems for pond and vault cleanup look quite promising. An extremely unusual ISM for carbon 14 (C-14), nickel (Ni-63) and cesium (Cs-137) has been developed for Diablo Canyon NPP for dose reduction testing in their fuel pool. These media will be deployed in Submersible Media Filter (SMF) and Submersible Columns (SC) systems adapted to standard Tri-Nuclear{sup R} housings common in the U.S. and UK. External Vessel Systems (mini-Fukushima) have also been developed as a second mitigation system for D and D and outages. Finally, technetium (Tc- 99) specific media developed for the Waste Treatment Plant (WTP) recycle or condensate (secondary) waste streams (WM 2011) are being further perfected and tested for At-Tank Tc-99 removal, as well as At Tank Cs media. In addition to the on-going media development, systems for deploying such media have developed over the last year and are in laboratory- and full-scale testing. These systems include the fore mentioned Submersible Media Filters (SMF), Submersible Columns (SC) and external pilot- and full-scale, lead-lag, canister systems. This paper will include the media development and testing, as well as that of the deployment systems themselves. (authors)

  19. Transformation Optics with Photonic Band Gap Media

    E-Print Network [OSTI]

    Urzhumov, Yaroslav A

    2010-01-01T23:59:59.000Z

    We introduce a class of optical media based on adiabatically modulated, dielectric-only, and potentially extremely low-loss, photonic crystals. The media we describe represent a generalization of the eikonal limit of transformation optics (TO). The foundation of the concept is the possibility to fit frequency isosurfaces in the k-space of photonic crystals with elliptic surfaces, allowing them to mimic the dispersion relation of light in anisotropic effective media. Photonic crystal cloaks and other TO devices operating at visible wavelengths can be constructed from optically transparent substances like glasses, whose attenuation coefficient can be as small as 10 dB/km, suggesting the TO design methodology can be applied to the development of optical devices not limited by the losses inherent to metal-based, passive metamaterials.

  20. Inspection Report on "Internal Controls over Accountable Classified Removable Electronic Media at Oak Ridge National Laboratory"

    SciTech Connect (OSTI)

    None

    2009-05-01T23:59:59.000Z

    The Department of Energy's Oak Ridge National Laboratory (ORNL) conducts cutting edge scientific research. ORNL utilizes removable electronic media, such as computer hard drives, compact disks, data tapes, etc., to store vast amounts of classified information. Incidents involving breakdowns in controls over classified removable electronic media have been a continuous challenge for the Department. The loss of even one piece of such media can have serious national security implications. In 2004, the Department had a complex-wide 'stand-down' of all activities using classified removable electronic media, and such media containing Secret/Restricted Data or higher classified data was designated 'Accountable Classified Removable Electronic Media' (ACREM). As part of the stand-down, sites were required to conduct a 100 percent physical inventory of all ACREM; enter it all into accountability; and conduct security procedure reviews and training. Further, the Department implemented a series of controls, including conducting periodic inventories, utilizing tamper proof devices on ACREM safes, and appointing trained custodians to be responsible for the material. After performance testing and validation that the required accountability systems were in place, ACREM operations at ORNL were approved for restart on August 10, 2004. We conducted a review at ORNL and associated facilities to determine whether ACREM is managed, protected, and controlled consistent with applicable requirements. We found that: (1) Eight pieces of Secret/Restricted Data media had not been identified as ACREM and placed into a system of accountability. Consequently, the items were not subject to all required protections and controls, such as periodic accountability inventories, oversight by a trained custodian, or storage in a designated ACREM safe. (However, the items were secured in safes approved for classified material.) (2) Other required ACREM protections and controls were not implemented as follows: a tamper indicating device was not being used on an ACREM safe; records documenting when a certain safe was opened did not support that a purported inventory had been conducted; and a safe inventory had not been completed in a timely manner. (3) A Personal Digital Assistant and a thumb drive, both capable of recording or transmitting data, were stored in a security area without an analysis to identify vulnerabilities and compensatory measures having been conducted, as required. We also found that an ORNL Cooperative Research and Development Agreement partner had not disabled classified computer ports at the partner's site that were capable of writing classified information to external or removable media, as required. We made several recommendations designed to enhance the security of ACREM, security areas, and computers.

  1. Secondary Pollutants from Ozone Reaction with Ventilation Filters and Degradation of Filter Media Additives

    E-Print Network [OSTI]

    Destaillats, Hugo

    2012-01-01T23:59:59.000Z

    and degradation of filter media additives H. Destaillats, W.and Degradation of Filter Media Additives Hugo Destaillatsand degradation of filter media additives Hugo Destaillats

  2. Seriality, the Literary and Database in Homestar Runner: Some Old Issues in New Media

    E-Print Network [OSTI]

    Boluk, Stephanie

    2009-01-01T23:59:59.000Z

    been reconfigured in digital media. Using Homestar Runner asthe range of what many digital media scholars might strictlyheavily on serial logics. Digital media and specifically, a

  3. Virtual worlds, real subjectivities : media anthropology at the personal/public interface

    E-Print Network [OSTI]

    Fontana, Erica Lynn

    2009-01-01T23:59:59.000Z

    and anthropological studies of digital media, and thus toand studies of new or digital media specifically, I argueon computer-based digital media, which is typically

  4. Scholarly Civilization: Utilizing 4X Gaming as a Framework for Humanities Digital Media

    E-Print Network [OSTI]

    Meeks, Elijah

    2009-01-01T23:59:59.000Z

    for Humanities Digital Media Elijah Meeks University ofof new humanities digital media. The defined interactiontranslation into academic digital media than the latter. It

  5. Non-participation in digital media. Toward a framework of mediated political action

    E-Print Network [OSTI]

    Casemajor, Nathalie; Couture, Stéphane; Delfin, Mauricio; Goerzen, Matt; Delfanti, Alessandro

    2015-01-01T23:59:59.000Z

    Non-participation in digital media. Toward a framework ofparticipation through digital media. The evolution of theNon-participation in digital media. Toward a framework of

  6. Propagation of polymer slugs through porous media

    SciTech Connect (OSTI)

    Lecourtier, J.; Chauveteau, G.

    1984-09-01T23:59:59.000Z

    This paper describes an experimental and theoretical study of the mechanisms governing polymer slug propagation through porous media. An analytical model taking into account the macromolecule exclusion from pore walls is proposed to predict rodlike polymer velocity in porous media and thus the spreading out of polydispersed polymer slugs. Under conditions where this wall exclusion is maximum, i.e. at low shear rates and polymer concentrations, the experiments show that xanthan propagation is effectively predicted by this model. At higher flow rates and polymer concentrations, the effects of hydrodynamic dispersion and viscous fingering are analyzed. A new fractionation method for determining molecular weight distribution of polymers used in EOR is proposed.

  7. Media - Combustion Energy Frontier Research Center

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > The EnergyCenter (LMI-EFRC)MaRIETechnologies | BlandineMedia Media

  8. Media Room | National Nuclear Security Administration

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > The EnergyCenter (LMI-EFRC)MaRIETechnologies | BlandineMediaMedia Room

  9. Credit Enhancement Program (Oklahoma)

    Broader source: Energy.gov [DOE]

    The Credit Enhancement Program is a means by which the Oklahoma Finance Authority provides guarantees for small companies, manufacturing facilities and communities in need of funds for expansion...

  10. Plasmon Enhanced Photoemission

    E-Print Network [OSTI]

    Polyakov, Aleksandr

    2013-01-01T23:59:59.000Z

    160 µm diameter. Such ultra-short laser pulse has a finiteprovided by the ultra-short laser pulses, a plasmon enhanced

  11. Plasmon Enhanced Photoemission

    E-Print Network [OSTI]

    Polyakov, Aleksandr N.

    2012-01-01T23:59:59.000Z

    160 µm diameter. Such ultra-short laser pulse has a finiteprovided by the ultra-short laser pulses, a plasmon enhanced

  12. Interface physics in microporous media : LDRD final report.

    SciTech Connect (OSTI)

    Yaklin, Melissa A.; Knutson, Chad E.; Noble, David R.; Aragon, Alicia R.; Chen, Ken Shuang; Giordano, Nicholas J. (Purdue University, West Lafayette, IN); Brooks, Carlton, F.; Pyrak-Nolte, Laura J. (Purdue University, West Lafayette, IN); Liu, Yihong (Purdue University, West Lafayette, IN)

    2008-09-01T23:59:59.000Z

    This document contains a summary of the work performed under the LDRD project entitled 'Interface Physics in Microporous Media'. The presence of fluid-fluid interfaces, which can carry non-zero stresses, distinguishes multiphase flows from more readily understood single-phase flows. In this work the physics active at these interfaces has been examined via a combined experimental and computational approach. One of the major difficulties of examining true microporous systems of the type found in filters, membranes, geologic media, etc. is the geometric uncertainty. To help facilitate the examination of transport at the pore-scale without this complication, a significant effort has been made in the area of fabrication of both two-dimensional and three-dimensional micromodels. Using these micromodels, multiphase flow experiments have been performed for liquid-liquid and liquid-gas systems. Laser scanning confocal microscopy has been utilized to provide high resolution, three-dimensional reconstructions as well as time resolved, two-dimensional reconstructions. Computational work has focused on extending lattice Boltzmann (LB) and finite element methods for probing the interface physics at the pore scale. A new LB technique has been developed that provides over 100x speed up for steady flows in complex geometries. A new LB model has been developed that allows for arbitrary density ratios, which has been a significant obstacle in applying LB to air-water flows. A new reduced order model has been developed and implemented in finite element code for examining non-equilibrium wetting in microchannel systems. These advances will enhance Sandia's ability to quantitatively probe the rich interfacial physics present in microporous systems.

  13. Polarization of Cerenkov radiation in anisotropic media

    SciTech Connect (OSTI)

    Orisa, B.D. [Moi Univ., Eldoret (Kenya)

    1995-10-01T23:59:59.000Z

    Using the method of Stokes parameters, we examine the polarization of Cerenkov radiation in anisotropic media. The study reveals that the radiation is totally polarized and that circular polarization is purely a quantum effect. We examine two cases; when the particle initially moves along the optical axis and when the particle initially moves perpendicular to the optical axis.

  14. REACTIVE ENVIRONMENTS AND AUGMENTED MEDIA SPACES

    E-Print Network [OSTI]

    Cooperstock, Jeremy R.

    REACTIVE ENVIRONMENTS AND AUGMENTED MEDIA SPACES by Jeremy R. Cooperstock A thesis submitted in conformity with the requirements for the degree of Doctor of Philosophy Graduate Department of Electrical and Computer Engineering University of Toronto © Copyright by Jeremy R. Cooperstock, 1996 #12;ii REACTIVE

  15. Inversion of Moment Tensors in Anisotropic Media

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    -Bohemia, Long Valley ­ volcanic areas! Volumetric components are often interpreted as tensile faulting media may comprise apparent (non-real) volumetric components. Anisotropy effects wave amplitudes and anisotropy in the source area, formulas Outline #12;Theory ­ Seismic Moment Tensor n s A isotropic materials

  16. MEDIA RELATIONS OFFICE JET PROPULSION LABORATORY

    E-Print Network [OSTI]

    Christian, Eric

    MEDIA RELATIONS OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL FROM SHATTERED STAR The signal of a cataclysmic magnetic flare emanating from a star that cracked apart about some of the most unusual stars in the universe. The magnetic burst from the star SGR1900

  17. Interview: Using digital media in research

    E-Print Network [OSTI]

    Gray, Stephen

    2011-03-02T23:59:59.000Z

    Digital media (e.g. video, audio, images) formats are changing fairly rapidly, which can lead to data loss or distortion when researchers try to re-use or access these materials. In this short interview, Stephen Gray provides pointers and examples...

  18. Fukushima Media Involvement: Lessons Learned and Challenges

    SciTech Connect (OSTI)

    Harvey, Geoffrey L.; Koller, Greg L.; Johnson, Wayne L.

    2013-04-01T23:59:59.000Z

    Only days after the Fukushima nuclear reactor disaster on March 11, 2011, the Department of Energy’s Pacific Northwest National Laboratory, or PNNL, found itself in a maelstrom of media attention following announcement of the detection of minute levels of radioactive material originating from the damaged reactors 4,500 miles away. Within days, PNNL had set up a technical team in support of the U.S. government’s efforts to assist the devastated country. While a vast amount of information began to flow from Japan, the situation rapidly evolved challenging PNNL scientists and engineers, as well as news media and the general public to deal with a complex and often conflicting information stream. Over the course of about three weeks, PNNL’s News & Media Relations staff and its scientists and engineers responded to more than one hundred requests for information, and engaged in dozens of personal interviews with international, national, regional and local media. While many of the interviews and resulting stories were accurate and well done, to say that all communication went flawless would be far from the truth. In the midst of chaos and confusion, which are part of any significant crisis, hiccoughs are sure to occur. Even when communications guidelines are established and agreed-to ahead of time, and spokespeople promise to stay on message and within their areas of expertise, there is no guarantee the ball will not be dropped on occasion. Addressed here is “the rest of the story.”

  19. Active Social Media Management: The Case of Health Care

    E-Print Network [OSTI]

    Miller, Amalia R.

    Given the demand for authentic personal interactions over social media, it is unclear how much firms should actively manage their social media presence. We study this question empirically in a health care setting. We show ...

  20. Master Thesis Proposal Eddy Current Imaging of Electrically Conducting Media

    E-Print Network [OSTI]

    Vuik, Kees

    Master Thesis Proposal Eddy Current Imaging of Electrically Conducting Media Domenico Lahaye and optimization techniques en- abling the eddy current imaging of electrically conducting media. Examples: · perform a literature study into topics such as eddy current imaging, inverse problems including

  1. Storied navigation : toward media collection-based storytelling

    E-Print Network [OSTI]

    Shen, Edward Yu-Te

    2007-01-01T23:59:59.000Z

    Life is filled with stories. Modern technologies enable us to document and share life events with various kinds of media, such as photos, videos, etc. But people still find it time-consuming to select and arrange media ...

  2. Evaluating a Social Media Application for Sustainability in the Workplace

    E-Print Network [OSTI]

    Lehrer, David; Vasudev, Janani

    2011-01-01T23:59:59.000Z

    Keywords Sustainability, social media, energy feedback,societal problem — energy and sustainability. Referencessustainability, it is not surprising that a number of social media sites have emerged that are devoted solely to conversations on energy

  3. Characterizing digital media exchanges in a university campus network

    E-Print Network [OSTI]

    Peha, Jon M.

    Characterizing digital media exchanges in a university campus network Alexandre M. Mateus 1 and Jon role in combating illegal transfers of copyrighted media over P2P by deploying deep packet inspection

  4. CODED SPECTROSCOPY FOR ETHANOL DETECTION IN DIFFUSE, FLUORESCENT MEDIA

    E-Print Network [OSTI]

    ABSTRACT CODED SPECTROSCOPY FOR ETHANOL DETECTION IN DIFFUSE, FLUORESCENT MEDIA by Scott Thomas Mc FOR ETHANOL DETECTION IN DIFFUSE, FLUORESCENT MEDIA by Scott Thomas McCain Department of Electrical

  5. State-of-the-Art of Social Media Analytics Research

    SciTech Connect (OSTI)

    Gastelum, Zoe N.; Whattam, Kevin M.

    2013-01-01T23:59:59.000Z

    Overview of current state-of-the-art of social media for NTI Working Group III: Societal Verification

  6. Active dendrites enhance neuronal dynamic range

    E-Print Network [OSTI]

    Leonardo L. Gollo; Osame Kinouchi; Mauro Copelli

    2009-08-08T23:59:59.000Z

    Since the first experimental evidences of active conductances in dendrites, most neurons have been shown to exhibit dendritic excitability through the expression of a variety of voltage-gated ion channels. However, despite experimental and theoretical efforts undertaken in the last decades, the role of this excitability for some kind of dendritic computation has remained elusive. Here we show that, owing to very general properties of excitable media, the average output of a model of active dendritic trees is a highly non-linear function of their afferent rate, attaining extremely large dynamic ranges (above 50 dB). Moreover, the model yields double-sigmoid response functions as experimentally observed in retinal ganglion cells. We claim that enhancement of dynamic range is the primary functional role of active dendritic conductances. We predict that neurons with larger dendritic trees should have larger dynamic range and that blocking of active conductances should lead to a decrease of dynamic range.

  7. Contrast-Enhanced Digital Mammography and Angiogenesis

    SciTech Connect (OSTI)

    Rosado-Mendez, I.; Palma, B. A. [Instituto de Fisica, Universidad Nacional Autonoma de Mexico (Mexico); UNAM Medical Physics Program, Mexico City (Mexico); Villasenor, Y. [Instituto Nacional de Cancerologia (INCan) (Mexico); Benitez-Bribiesca, L. [Centro Medico Nacional Siglo XXI (Mexico); Brandan, M. E. [Instituto de Fisica, Universidad Nacional Autonoma de Mexico (Mexico)

    2007-11-26T23:59:59.000Z

    Angiogenesis could be a means for pouring contrast media around tumors. In this work, optimization of radiological parameters for contrast-enhanced subtraction techniques in mammography has been performed. A modification of Lemacks' analytical formalism was implemented to model the X-ray absorption in the breast with contrast medium and detection by a digital image receptor. Preliminary results of signal-to-noise ratio analysis show the advantage of subtracting two images taken at different energies, one prior and one posterior to the injection of contrast medium. Preliminary experimental results using a custom-made phantom have shown good agreement with calculations. A proposal is presented for the clinical application of the optimized technique, which aims at finding correlations between angiogenesis indicators and dynamic variables of contrast medium uptake.

  8. MEDIA RESOURCES ADAPTATION FOR LIMITED DEVICES TAYEB LEMLOUMA1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    MEDIA RESOURCES ADAPTATION FOR LIMITED DEVICES TAYEB LEMLOUMA1 ; NABIL LAYADA1 1 WAM Project, INRIA.Lemlouma@inrialpes.fr; Nabil.Layaida@inrialpes.fr In this paper, we define a framework for media resources manipulation in an adaptive content delivery system. We discuss the media resources manipulation in an adaptation

  9. Matching of asymptotic expansions for the wave propagation in media

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Matching of asymptotic expansions for the wave propagation in media with thin slot S-SAM Matching of asymptotic expansions for the wave propagation in media with thin slot ­ p.1/38 inria-00528070 of asymptotic expansions for the wave propagation in media with thin slot ­ p.2/38 inria-00528070,version1-21Oct

  10. Matching of asymptotic expansions for the wave propagation in media

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Matching of asymptotic expansions for the wave propagation in media with thin slot S-SAM Matching of asymptotic expansions for the wave propagation in media with thin slot ­ p.1/29 inria-00528072 The wavelength The width of the slot ¡ Matching of asymptotic expansions for the wave propagation in media

  11. The College of Engineering Electronic Media Disposal Policy

    E-Print Network [OSTI]

    Demirel, Melik C.

    The College of Engineering Electronic Media Disposal Policy COE­EMD­01 1.0 Purpose The purpose of this policy is to establish requirements for the proper disposal of electronic media containing sensitive data of information resources contain electronic media including, but not limited to: computer systems, personal

  12. SIMULATING NON-DARCY FLOW THROUGH POROUS MEDIA USING SUNDANCE

    E-Print Network [OSTI]

    Kelley, C. T. "Tim"

    Abstract A non-Darcy partial differential equation (PDE) model for flow through porous media is presentedSIMULATING NON-DARCY FLOW THROUGH POROUS MEDIA USING SUNDANCE J. P. REESE1 , K. R. LONG2 , C. T media has been modeled using either the linear Darcy's law or some empirical nonlinear relationship

  13. Supporting a Social Media Observatory with Customizable Index Structures --Architecture

    E-Print Network [OSTI]

    research activity in analysis of social media and micro- blogging data in recent years suggests media data. To support these "social media observatories" effectively, a storage platform must satisfy special requirements for loading and storage of multi-terabyte datasets, as well as efficient evaluation

  14. Media Framing and Public Attitudes Toward Biofuels Ashlie Delshad

    E-Print Network [OSTI]

    Media Framing and Public Attitudes Toward Biofuels Ashlie Delshad Department of Political Science between media framing and public opinion on the issue of biofuels--transportation fuels made from plants, animal products, or organic waste. First, the paper investigates how media framing of biofuels has

  15. Digital Media Studies Major Learning Objectives and Assessment Plan

    E-Print Network [OSTI]

    Cantlon, Jessica F.

    Digital Media Studies Major Learning Objectives and Assessment Plan Learning Objectives The program of text and visual media objects · Draw on a rigorous combination of theory, analysis and hands-on digital work in development of original ideas in digital media · Collaborate as a team in development from

  16. OFFICE OF THE PRESIDENT DIGITAL AND MEDIA COPYRIGHT COMPLIANCE

    E-Print Network [OSTI]

    Hemmers, Oliver

    OFFICE OF THE PRESIDENT DIGITAL AND MEDIA COPYRIGHT COMPLIANCE RESPONSIBLE ADMlNISTRA TOR and supervisors, deans, directors, and department heads should read this policy. #12;DIGITAL AND MEDIA COPYRIGHT will investigate all digital and media copyright infringement complaints and take appropriate action. NOTE

  17. DIGITAL AND SOCIAL MEDIA SEARCH DEPARTMENT OF COMMUNICATION AND CULTURE

    E-Print Network [OSTI]

    Indiana University

    DIGITAL AND SOCIAL MEDIA SEARCH DEPARTMENT OF COMMUNICATION AND CULTURE INDIANA UNIVERSTIY for a tenure-track Assistant Professor position in Digital and Social Media to begin Fall 2012. We seek and social media and advanced undergraduate courses in digital televisual studies, as well as for actively

  18. MEDIA RELEASE FAIRFAX TO LAUNCH DIGITAL SUBSCRIPTIONS FOR

    E-Print Network [OSTI]

    Peters, Richard

    MEDIA RELEASE FAIRFAX TO LAUNCH DIGITAL SUBSCRIPTIONS FOR THE SYDNEY MORNING HERALD AND THE AGE for the first month - 6 June 2013: Fairfax Media today announced that digital subscriptions for The Sydney development to our digital strategy since Fairfax Media began producing digital content and products

  19. Digital Media Curriculum Development Project Yue-Ling Wong

    E-Print Network [OSTI]

    Burg, Jennifer J.

    Digital Media Curriculum Development Project Yue-Ling Wong Computer Science Department Art University USA burg@wfu.edu Abstract: This paper presents and discusses an interdisciplinary digital media for a digital media curriculum that addresses both the technical and the aesthetic elements of multimedia

  20. Secure Streaming Media and Digital Rights Management Deepali Holankar

    E-Print Network [OSTI]

    Stamp, Mark

    Secure Streaming Media and Digital Rights Management Deepali Holankar Department of Computer of our secure streaming media system and we give some performance results. 1 #12;2 Digital rights. Company A only wants to allow paying customers to have access to the media stream. Digital rights

  1. Combined Honours BA Digital Journalism and Communication, Media, and Film

    E-Print Network [OSTI]

    Combined Honours BA Digital Journalism and Communication, Media, and Film Are you looking in Digital Journalism (DJ) and Communication, Media, and Film (CMF) is for you. That's because our DJ for a career combining your interests in media with a practical skill-set? If so, the Combined Honours program

  2. Combined Honours BA Digital Journalism and Communication, Media, and Film

    E-Print Network [OSTI]

    Combined Honours BA Digital Journalism and Communication, Media, and Film Are you looking in Digital Journalism (DJ) and Communication, Media, and Film (CMF) is for you. That's because our DJ Honours BA Digital Journalism and Communication, Media, and Film We look forward to meeting you! Student

  3. Enhanced Diffraction from a Grating on the Surface of a Negative-Index Metamaterial D. R. Smith, P. M. Rye, J. J. Mock, D. C. Vier, and A. F. Starr

    E-Print Network [OSTI]

    Nemat-Nasser, Sia

    Enhanced Diffraction from a Grating on the Surface of a Negative-Index Metamaterial D. R. Smith, P be carefully reexamined in the context of negative-index media. For example, in an analysis of the imaging

  4. SOCIAL MEDIA AD Intreat is looking for a part-time Social Media Guru to help build and

    E-Print Network [OSTI]

    SOCIAL MEDIA AD Intreat is looking for a part-time Social Media Guru to help build and engage our to work for a startup in a new and dynamically growing market. We are a small team with big goals in our app? Are you an outgoing creative who is interested in working in social media marketing? Do you

  5. On the transport of emulsions in porous media

    E-Print Network [OSTI]

    Cortis, Andrea; Ghezzehei, Teamrat A.

    2008-01-01T23:59:59.000Z

    remediation, and enhanced oil-recovery. Modeling emulsionNearly all enhanced oil recovery processes involve emulsiongroundwater [5] and enhanced oil-recovery [6–8]. Emulsion

  6. MATHEMATICAL MODELS OF THERMAL AND CHEMICAL TRANSPORT IN GEOLOGIC MEDIA

    E-Print Network [OSTI]

    Lai, C.-H.

    2010-01-01T23:59:59.000Z

    s materials, and enhanced oil recovery processes. To obtainin tracer tests or enhanced oil recovery processes and, moreresource development, enhanced oil recovery processes, and

  7. Laser preheat enhanced ignition

    DOE Patents [OSTI]

    Early, James W. (Los Alamos, NM)

    1999-01-01T23:59:59.000Z

    A method for enhancing fuel ignition performance by preheating the fuel with laser light at a wavelength that is absorbable by the fuel prior to ignition with a second laser is provided.

  8. Plasmon Enhanced Photoemission

    E-Print Network [OSTI]

    Polyakov, Aleksandr N.

    2012-01-01T23:59:59.000Z

    160 µm diameter. Such ultra-short laser pulse has a finiteprovided by the ultra-short laser pulses, a plasmon enhancedFigures Free Electron Laser is an ultra-bright light source

  9. Plasmon Enhanced Photoemission

    E-Print Network [OSTI]

    Polyakov, Aleksandr

    2013-01-01T23:59:59.000Z

    160 µm diameter. Such ultra-short laser pulse has a finiteprovided by the ultra-short laser pulses, a plasmon enhancedFigures Free Electron Laser is an ultra-bright light source

  10. Enhanced metabolite generation

    DOE Patents [OSTI]

    Chidambaram, Devicharan (Middle Island, NY)

    2012-03-27T23:59:59.000Z

    The present invention relates to the enhanced production of metabolites by a process whereby a carbon source is oxidized with a fermentative microbe in a compartment having a portal. An electron acceptor is added to the compartment to assist the microbe in the removal of excess electrons. The electron acceptor accepts electrons from the microbe after oxidation of the carbon source. Other transfers of electrons can take place to enhance the production of the metabolite, such as acids, biofuels or brewed beverages.

  11. Method and apparatus for injecting particulate media into the ground

    DOE Patents [OSTI]

    Dwyer, Brian P.; Dwyer, Stephen F.; Vigil, Francine S.; Stewart, Willis E.

    2004-12-28T23:59:59.000Z

    An improved method and apparatus for injecting particulate media into the ground for constructing underground permeable reactive barriers, which are used for environmental remediation of subsurface contaminated soil and water. A media injector sub-assembly attached to a triple wall drill string pipe sprays a mixture of active particulate media suspended in a carrier fluid radially outwards from the sub-assembly, at the same time that a mixing fluid is sprayed radially outwards. The media spray intersects the mixing spray at a relatively close distance from the point of injection, which entrains the particulate media into the mixing spray and ensures a uniform and deep dispersion of the active media in the surrounding soil. The media injector sub-assembly can optionally include channels for supplying compressed air to an attached down-the-hole hammer drive assembly for use during drilling.

  12. Ion processing element with composite media

    DOE Patents [OSTI]

    Mann, Nick R. (Blackfoot, ID); Tranter, Troy J. (Idaho Falls, ID); Todd, Terry A. (Aberdeen, ID); Sebesta, Ferdinand (Prague, CZ)

    2009-03-24T23:59:59.000Z

    An ion processing element employing composite media disposed in a porous substrate, for facilitating removal of selected chemical species from a fluid stream. The ion processing element includes a porous fibrous glass substrate impregnated by composite media having one or more active components supported by a matrix material of polyacrylonitrile. The active components are effective in removing, by various mechanisms, one or more constituents from a fluid stream passing through the ion processing element. Due to the porosity and large surface area of both the composite medium and the substrate in which it is disposed, a high degree of contact is achieved between the active component and the fluid stream being processed. Further, the porosity of the matrix material and the substrate facilitates use of the ion processing element in high volume applications where it is desired to effectively process a high volume flows.

  13. Letter report: Media information review, 1991

    SciTech Connect (OSTI)

    Harvey, G.L.

    1992-04-01T23:59:59.000Z

    The media information review, requested by the Communications Subcommittee of the Technical Steering Panel (TSP), provides a general indication of the media's areas of interests with regard to the Hanford Environmental Dose Reconstruction (HEDR) Project. This review briefly assesses 24 newspaper and magazine articles collected between September 1991 and January 1992 by Pacific Northwest Laboratory (PNL). Articles that mention the project, activities closely associated with it, or members of the Panel were included in the analysis. Attempts were made to identify general categories and issues found within the articles and display the results in an order of ranking. This review is unscientific and is not meant to display a technical analysis of the materials.

  14. Peculiarities of wave fields in nonlocal media

    E-Print Network [OSTI]

    V. A. Danylenko; S. I. Skurativskyi

    2015-03-02T23:59:59.000Z

    The article summarizes the studies of wave fields in structured non-equilibrium media describing by means of nonlocal hydrodynamic models. Due to the symmetry properties of models, we derived the invariant wave solutions satisfying autonomous dynamical systems. Using the methods of numerical and qualitative analysis, we have shown that these systems possess periodic, multiperiodic, quasiperiodic, chaotic, and soliton-like solutions. Bifurcation phenomena caused by the varying of nonlinearity and nonlocality degree are investigated as well.

  15. Manganese containing layer for magnetic recording media

    DOE Patents [OSTI]

    Lambeth, David N. (Pittsburgh, PA); Lee, Li-Lien (Santa Clara, CA); Laughlin, David E. (Pittsburgh, PA)

    1999-01-01T23:59:59.000Z

    The present invention provides for a magnetic recording media incorporating Mn-containing layers between a substrate and a magnetic layer to provide media having increased coercivity and lower noise. The Mn-containing layer can be incorporated in a rotating, translating or stationary recording media to operate in conjunction with magnetic transducing heads for recording and reading of magnetic data, as well as other applications. The magnetic recording medium of the invention preferably includes a Co or Co alloy film magnetic layer, and Mn-containing layer, preferably comprised of VMn, TiMn, MnZn, CrMnMo, CrMnW, CrMnV, and CrMnTi, and most preferably a CrMn alloy, disposed between the substrate and the magnetic layer to promote an epitaxial crystalline structure in the magnetic layer. The medium can further include seed layers, preferably polycrystalline MgO for longitudinal media, underlayers, and intermediate layers. Underlayers and intermediate layers are comprised of materials having either an A2 structure or a B2-ordered crystalline structure disposed between the seed layer and the magnetic layer. Materials having an A2 structure are preferably Cr or Cr alloys, such as CrV, CrMo, CrW and CrTi. Materials having a B2-ordered structure having a lattice constant that is substantially comparable to that of Cr, such as those preferably selected from the group consisting of NiAl, AILCo, FeAl, FeTi, CoFe, CoTi, CoHf, CoZr, NiTi, CuBe, CuZn, A-LMn, AlRe, AgMg, and Al.sub.2 FeMn.sub.2, and is most preferably FeAl or NiAl.

  16. Immunoassay sensitivity and kinetic enhancement in cell culture media using electrokinetic preconcentration

    E-Print Network [OSTI]

    Li, Leon Daliang

    2009-01-01T23:59:59.000Z

    The microfluidic cell culture enables the study of cell signaling in previously impossible or impractical ways by allowing the precise spatial and temporal control of the microenvironment to better mimic in vivo conditions. ...

  17. Angular domain optical imaging of turbid media using enhanced micro-tunnel filter arrays

    E-Print Network [OSTI]

    Chapman, Glenn H.

    performed in tissue mimicking phantoms using a 2-cm thick optical cell with 0.25% IntralipidTM and a near infrared laser. This paper also presents experimental results of the angular domain imaging system employing novel micro-tunnel arrays with minimal internal reflection which can accept the non- scattered

  18. SPEECH ENHANCEMENT FOR CROSSTALK INTERFERENCE

    E-Print Network [OSTI]

    SPEECH ENHANCEMENT FOR CROSS­TALK INTERFERENCE by Levent M. Arslan and John H.L. Hansen Robust. Based on this noise esti­ mate, a new speech enhancement technique is proposed. The enhancement method EDICS Code: SPL.SA.1.5 Speech Enhancement submitted Jan. 19, 1996 to IEEE Signal Processing Letters

  19. Jefferson Lab Public Affairs: Electronic Media

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12 InvestigationLabNew SafetyLab TheElectronic Media

  20. News and Media | Photosynthetic Antenna Research Center

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > The EnergyCenterDioxideDocumentationThreeNews ReleasesNews and Media

  1. News/Media | Photosynthetic Antenna Research Center

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated CodesTransparencyDOE Project Taps HPCNew4 News Releases Media

  2. Spatially Dispersive Inhomogeneous Electromagnetic Media with Periodic Structure

    E-Print Network [OSTI]

    Gratus, Jonathan

    2015-01-01T23:59:59.000Z

    Spatially dispersive (also known as non-local) electromagnetic media are considered where the parameters defining the permittivity relation vary periodically. Maxwell's equations give rise to a difference equation corresponding to the Floquet modes. A complete set of approximate solutions is calculated which are valid when the inhomogeneity is small. This is applied to inhomogeneous wire media. A new feature arises when considering spatially dispersive media, that is the existence of coupled modes.

  3. Investigation of porous media structures using NMR restricted diffusion measurements

    E-Print Network [OSTI]

    Miao, Peizhi

    1993-01-01T23:59:59.000Z

    coefficient which produces a new description of molecule diffusion in porous media. Experimental Details Model porous media chosen for investigation are water saturated glass bead packs of different bead sizes from 50 to 300 microns. First the glass beads... is accessible with the aid of sufficiently developed analysis procedures, NMR techniques can be applied to porous structure analysis. For the hypothesis that water saturated in porous media consists of two phases: water removed from domain boundaries...

  4. Gyro Enhanced Orientation Sensor

    E-Print Network [OSTI]

    Sheikh, Yaser Ajmal

    ­ container handling, hydraulic lift systems, machine tools www.microstrain.com #12;Copyright © 2006 Micro3DM-GX1® Gyro Enhanced Orientation Sensor Technical Product Overview Micro Sensors.Big Ideas protocol. Embedded microcontrollers relieve the host system from the burden of orientation calculations

  5. The Enhanced Fujita Tornado

    E-Print Network [OSTI]

    Beaufort Force 12 with Mach 1 in twelve steps. The equation relating the wind velocities (V in mphThe Enhanced Fujita Tornado Scale Wind speeds in tornadoes range from values below that of weak hurricane speeds to more than 300 miles per hour! Unlike hurricanes, which produce wind speeds of generally

  6. anisotropic piezoelectric media: Topics by E-print Network

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

    Page Last Page Topic Index 1 A finite element method for modelling electromechanical wave propagation in anisotropic piezoelectric media CERN Preprints Summary: We describe and...

  7. MEDIA BRIEFING CONFERENCE CALL: Secretary Chu to Host Solar Energy...

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

    BRIEFING CONFERENCE CALL: Secretary Chu to Host Solar Energy Conference Call MEDIA BRIEFING CONFERENCE CALL: Secretary Chu to Host Solar Energy Conference Call February 4, 2011 -...

  8. Development of Model Filtration Media for Investigating Size...

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

    Efficiency A novel method for fabricating custom porous filtration media for emission control has been developed. Controlled pore sizes could be used to optimize...

  9. Nano fabrication approaches for patterned magnetic recording media

    E-Print Network [OSTI]

    Choi, Chulmin

    2010-01-01T23:59:59.000Z

    for bit patterned media (BPM). ix Figure 20. (a) Obliquedescription of the BPM nanostructures. 67by SQUID measurements for (a) BPM with unremoved magnetic

  10. Transport in Porous Media ISSN 0169-3913

    E-Print Network [OSTI]

    Zhan, Hongbin

    -011-9720-2 Applicability of the Linearized Governing Equation of Gas Flow in Porous Media Jian Li · Hongbin Zhan · Guanhua

  11. artery intima media: Topics by E-print Network

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

    World Senior Games. Open Access Theses and Dissertations Summary: ??Carotid intima-media thickness (cIMT) is a valid measure of cardiovascular disease (CVD). Physical...

  12. arteria cerebral media: Topics by E-print Network

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

    to illustrate types of enterprise networks and considerations for their analysis. Marc Smith; Derek L. Hansen; Eric Gleave 104 New Media Practices in Korea University of...

  13. Kinetics, Mechanics and Microstructure Changes in Storage Media...

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

    the Kinetics, Mechanics and Microstructure Changes in Storage Media given at the DOE Theory Focus Session on Hydrogen Storage Materials on May 18, 2006. storagetheorysessionei...

  14. On-Site Wastewater Treatment Systems: Constructed Wetland Media

    E-Print Network [OSTI]

    Lesikar, Bruce J.; Weaver, Richard; Richter, Amanda; O'Neill, Courtney

    2005-02-19T23:59:59.000Z

    This publication explains the functions, characteristics, choices, configurations and maintenance needs for constructed wetland media in on-site wastewater treatment systems....

  15. News Media invited to interview JLab summer, science enrichment...

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

    2003 Education Poster Session News Media invited to interview JLab summer, science enrichment program participants; cover closing Poster Session July 28, 2004 Newport News, VA. -...

  16. Contact micromechanics in granular media with clay

    SciTech Connect (OSTI)

    Ita, S.L.

    1994-08-01T23:59:59.000Z

    Many granular materials, including sedimentary rocks and soils, contain clay particles in the pores, grain contacts, or matrix. The amount and location of the clays and fluids can influence the mechanical and hydraulic properties of the granular material. This research investigated the mechanical effects of clay at grain-to-grain contacts in the presence of different fluids. Laboratory seismic wave propagation tests were conducted at ultrasonic frequencies using spherical glass beads coated with Montmorillonite clay (SWy-1) onto which different fluids were adsorbed. For all bead samples, seismic velocity increased and attenuation decreased as the contact stiffnesses increased with increasing stress demonstrating that grain contacts control seismic transmission in poorly consolidated and unconsolidated granular material. Coating the beads with clay added stiffness and introduced viscosity to the mechanical contact properties that increased the velocity and attenuation of the propagating seismic wave. Clay-fluid interactions were studied by allowing the clay coating to absorb water, ethyl alcohol, and hexadecane. Increasing water amounts initially increased seismic attenuation due to clay swelling at the contacts. Attenuation decreased for higher water amounts where the clay exceeded the plastic limit and was forced from the contact areas into the surrounding open pore space during sample consolidation. This work investigates how clay located at grain contacts affects the micromechanical, particularly seismic, behavior of granular materials. The need for this work is shown by a review of the effects of clays on seismic wave propagation, laboratory measurements of attenuation in granular media, and proposed mechanisms for attenuation in granular media.

  17. Wave Propagation in Jointed Geologic Media

    SciTech Connect (OSTI)

    Antoun, T

    2009-12-17T23:59:59.000Z

    Predictive modeling capabilities for wave propagation in a jointed geologic media remain a modern day scientific frontier. In part this is due to a lack of comprehensive understanding of the complex physical processes associated with the transient response of geologic material, and in part it is due to numerical challenges that prohibit accurate representation of the heterogeneities that influence the material response. Constitutive models whose properties are determined from laboratory experiments on intact samples have been shown to over-predict the free field environment in large scale field experiments. Current methodologies for deriving in situ properties from laboratory measured properties are based on empirical equations derived for static geomechanical applications involving loads of lower intensity and much longer durations than those encountered in applications of interest involving wave propagation. These methodologies are not validated for dynamic applications, and they do not account for anisotropic behavior stemming from direcitonal effects associated with the orientation of joint sets in realistic geologies. Recent advances in modeling capabilities coupled with modern high performance computing platforms enable physics-based simulations of jointed geologic media with unprecedented details, offering a prospect for significant advances in the state of the art. This report provides a brief overview of these modern computational approaches, discusses their advantages and limitations, and attempts to formulate an integrated framework leading to the development of predictive modeling capabilities for wave propagation in jointed and fractured geologic materials.

  18. Risk, media, and stigma at Rocky Flats

    SciTech Connect (OSTI)

    Flynn, J.; Peters, E.; Mertz, C.K.; Slovic, P. [Decision Research, Eugene, OR (United States)] [Decision Research, Eugene, OR (United States)

    1998-12-01T23:59:59.000Z

    Public responses to nuclear technologies are often strongly negative. Events, such as accidents or evidence of unsafe conditions at nuclear facilities, receive extensive and dramatic coverage by the news media. These news stories affect public perceptions of nuclear risks and the geographic areas near nuclear facilities. One result of these perceptions, avoidance behavior, is a form of technological stigma that leads to losses in property values near nuclear facilities. The social amplification of risk is a conceptual framework that attempts to explain how stigma is created through media transmission of information about hazardous places and public perceptions and decisions. This paper examines stigma associated with the US Department of energy`s Rocky Flats facility, a major production plant in the nation`s nuclear weapons complex, located near Denver, Colorado. This study, based upon newspaper analyses and a survey of Denver area residents, finds that the social amplification theory provides a reasonable framework for understanding the events and public responses that took place in regard to Rocky Flats during a 6-year period, beginning with an FBI raid of the facility in 1989.

  19. Faculty of Arts, Humanities and Social Sciences Media Art Histories and

    E-Print Network [OSTI]

    , drawing, sculpture, print media, digital video and new media, while also emphasizing the critical As the everyday use of images expands exponentially across digital media, our combined BA program in Media Art, media, and cultural management positions · curating and events management · digital archives

  20. Social Media, Social Kids: Sociocultural Implications of 21st Century Media for Development in the Preteen Period.

    E-Print Network [OSTI]

    Tehranian, Yalda

    2013-01-01T23:59:59.000Z

    their media use is mobile technology, a new feature of theof the Internet, mobile technologies, and the rapid21 st century, as mobile technology and the Internet became

  1. Beyond the Base? Political Parties, Citizen Activists, and Digital Media Use in the 2009 German Federal Election Campaign

    E-Print Network [OSTI]

    Römmele, Andrea; Copeland, Lauren

    2013-01-01T23:59:59.000Z

    political mobilization: Digital media and the organizationonline: Learning how digital media can engage youth (pp. 51-Norris, 2000). When digital media emerged, a big debate

  2. Enhanced mercury oxidation

    SciTech Connect (OSTI)

    Gretta, W.J.; Wu, S.; Kikkawa, H. [Hitachi Power Systems America, Basting Ridge, NJ (United States)

    2009-06-15T23:59:59.000Z

    A new catalyst offers a new way to enhance mercury control from bituminous coal-fired power plants. Hitachi has developed an SCR catalyst which satisfies high Hg{sup 0} oxidation and low SO{sub 2} oxidation requirements under high temperatures (716 to 770 F). This triple action catalysts, TRAC can significantly enhance mercury oxidation and reduce or eliminate the need for additional mercury control measures such as activated carbon injection. After laboratory testing, pilot-scale tests confirmed an activity of 1.4-1.7 times higher than that of conventional SCR catalyst. The new catalyst has been successfully applied in a commercial PRB-fired boiler without the need for halogens to be added to the fuel feed or flue gas. 2 figs.

  3. Lignite Fuel Enhancement

    SciTech Connect (OSTI)

    Charles Bullinger

    2006-02-03T23:59:59.000Z

    This 6th quarterly Technical Progress Report for the Lignite Fuel Enhancement Project summarizes activities from October 1st through December 31st of 2005. It also summarizes the subsequent purchasing activity and dryer/process construction. Hypothesis remains the same. We will be able to dry lignite an increment to benefit the performance of and reduce emissions from a coal burning electric power generating station.

  4. Calibration of hydraulic and tracer tests in fractured media

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

    Calibration of hydraulic and tracer tests in fractured media represented by a DFN Model L. D. Donado, X. Sanchez-Vila, E. Ruiz* & F. J. Elorza** * Enviros Spain S.L. ** UPM #12;Fractured Media Water flows through fractures (matrix basically impervious ­ though relevant to transport) Fractures at all

  5. Fundamental studies of fluid mechanics and stability in porous media

    SciTech Connect (OSTI)

    Homsy, G.M.

    1991-08-01T23:59:59.000Z

    This report summarizes accomplished and proposed work for the fundamental studies of fluid mechanics and stability in porous media. Topics discussed include: viscous fingering in miscible displacements; polymer flow interactions in free shear layers of viscoelastic fluids; effect of nonmonotonic viscosity profiles on the stability of miscible displacements in porous media; and references. (JL)

  6. Stability of Miscible Displacements Across Stratified Porous Media

    SciTech Connect (OSTI)

    Shariati, Maryam; Yortsos, Yanis C.

    2000-09-11T23:59:59.000Z

    This report studied macro-scale heterogeneity effects. Reflecting on their importance, current simulation practices of flow and displacement in porous media were invariably based on heterogeneous permeability fields. Here, it was focused on a specific aspect of such problems, namely the stability of miscible displacements in stratified porous media, where the displacement is perpendicular to the direction of stratification.

  7. The "FISH" Quad Hand Sensor Physics and Media Group

    E-Print Network [OSTI]

    The "FISH" Quad Hand Sensor Physics and Media Group MIT Media Laboratory 20 Ames Street E15 OF CONTENTS ----------------- 1. ASCII SERIAL FISH PROTOCAL 2. HOW TO MAKE FISH ANTENNA 3. CALIBRATION SOFTWARE INSTALLATION 4. HOW TO CALIBRATE A FISH 5. COMPONENT PLACEMENT 6. SCHEMATICS 7. PARTS LIST HOW

  8. New Monte Carlo schemes for simulating diffusions in discontinuous media

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    New Monte Carlo schemes for simulating diffusions in discontinuous media Antoine Lejay1,2,3,4,5 Sylvain Maire6,7 April 28, 2012 Abstract We introduce new Monte Carlo simulation schemes for diffusions in a dis- continuous media divided in subdomains with piecewise constant diffusivity. These schemes

  9. New Monte Carlo schemes for simulating diffusions in discontinuous media

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    New Monte Carlo schemes for simulating diffusions in discontinuous media Antoine Lejay1,2,3,4,5 Sylvain Maire6,7 December 13, 2012 Abstract We introduce new Monte Carlo simulation schemes for diffusions in a dis- continuous media divided in subdomains with piecewise constant diffusivity. These schemes

  10. Social Media Guidelines LSUHSC School of Medicine in New Orleans

    E-Print Network [OSTI]

    Social Media Guidelines LSUHSC School of Medicine in New Orleans Employees and Students At LSUHSC School of Medicine ­ New Orleans (SOM), social networking (both on LSUHSC-provided services to the community. The SOM is committed to facilitating a successful social media strategy for its faculty, staff

  11. Grinding media oscillation: effect on torsional vibrations in tumble mills

    E-Print Network [OSTI]

    Toram, Kiran Kumar

    2005-11-01T23:59:59.000Z

    of oscillation of grinding media on torsional vibrations of the mill. A theoretical model was developed to determine the oscillating frequency of the grinding media. A 12" (0.3 m) diameter tumble mill test rig was built with a 0.5 hp DC motor. The rig is tested...

  12. A RESISTIVE FORCE MODEL FOR LEGGED LOCOMOTION ON GRANULAR MEDIA*

    E-Print Network [OSTI]

    Goodisman, Michael

    on granular surfaces like sand and gravel. Understanding the mechanics of legged locomotion on granular media and kinematics, e.g., a bio-inspired robot L-leg rotated through uniform granular media (loosely packed ~ 1 mm including insects, lizards, and mammals encounter granular surfaces like sand and gravel in their natural

  13. Diffusion with dissolution and precipitation in a porous media

    E-Print Network [OSTI]

    Herbin, Raphaèle

    Diffusion with dissolution and precipitation in a porous media approximation by a finite volume numériques sont ensuite montrés. KEYWORDS: diffusion, dissolution-precipitation, porous media, finite volumes barriers. For such a use, cement concrete offers the advantage of having a weak porosity. However, disposal

  14. China's News Media: Transition Shaped by Power and Money

    E-Print Network [OSTI]

    Dodla, Ramana

    China's News Media: Transition Shaped by Power and Money EAST ASIA INSTITUTE of CommunicaDon, gave a lecture on August 31, 2010 Dtled China's News Media: Transi1on Dr. Zhang examined the changes made throughout China's history. Many guests

  15. Numerical Computation of Multiphase Flows in Porous Media

    E-Print Network [OSTI]

    Bastian, Peter

    Preface iii Notation ix Introduction 1 1 Modeling Immiscible Fluid Flow in Porous Media 7 1.1 Porous Media legendi im Fachgebiet Informatik (Wissenschaftliches Rechnen) #12;ii #12;Preface Groundwater is a precious resource that is important for all forms of life on earth. The quality of groundwater is impaired

  16. COMPARISON OF VARIOUS FORMULATIONS OF THREEPHASE FLOW IN POROUS MEDIA

    E-Print Network [OSTI]

    , oil, and gas) flow in porous media, including phase, global, and pseudo­global pressure three­phase (e.g., water, oil, and gas) flow in porous media. We show that, under a so­called total­global pressure and two saturations without any assumption. However, it turns out that the phase and pseudo

  17. Conservation and Documentation of New Media Art by Laura Barreca

    E-Print Network [OSTI]

    Qian, Ning

    Conservation and Documentation of New Media Art by Laura Barreca The debate around the conservation and documentation of New Media Art has been internationally developed, due to the increase of the use of ephemeral. Moreover the documentation of the artist's intent should be considered as guiding principles

  18. FRACTURE STIMULATION IN ENHANCED GEOTHERMAL

    E-Print Network [OSTI]

    Stanford University

    FRACTURE STIMULATION IN ENHANCED GEOTHERMAL SYSTEMS A REPORT SUBMITTED TO THE DEPARTMENT OF ENERGY (Principal Advisor) #12;#12;v Abstract Enhanced Geothermal Systems (EGS) are geothermal reservoirs formed

  19. Automotive Component Product Development Enhancement

    E-Print Network [OSTI]

    of Science in Engineering and Management February 2005 ABSTRACT Automotive industry is facing a tough periodAutomotive Component Product Development Enhancement Through Multi-Attribute System Design Engineering Systems Division #12;Automotive Component Product Development Enhancement Through Multi

  20. The institute of optimism for professional journalism in the social media era

    E-Print Network [OSTI]

    Lee, Jin Kyu, M. Arch. Massachusetts Institute of Technology

    2013-01-01T23:59:59.000Z

    The ecology of contemporary journalism is experiencing a power shift from traditional media such as newspapers and TV news to social media. This shift is bringing a crisis of professional journalism in the traditional media ...

  1. Q&A About Media Coverage of Domestic Violence New York State Office for the

    E-Print Network [OSTI]

    Qiu, Weigang

    Q&A About Media Coverage of Domestic Violence New York State Office for the Prevention of Domestic..............................................................................................Cover Media Coverage of Domestic Violence...................................................................................... Page 2 Q&A About Media Coverage of Domestic Violence

  2. For immediate release --October 1, 2014 New media practices converge across disciplines

    E-Print Network [OSTI]

    Hossain, Shahadat

    For immediate release -- October 1, 2014 New media practices converge across disciplines Students entering the field of new media might not be aware of all the ways new media tools are being used across disciplines

  3. Resource-based view of social media as a source of sustained competitive advantage

    E-Print Network [OSTI]

    Pervaje, Amith (Amith Kumar)

    2011-01-01T23:59:59.000Z

    Executive summary: Social Media is increasingly becoming prevalent and firms are increasingly adopting social media. Managers are concerned about the value social media provides and how it can be used for competitive ...

  4. Making It Better : : LGBT Youth and New Pedagogies of Media Production

    E-Print Network [OSTI]

    Berliner, Lauren Samara

    online: Learning how digital media can engage youth . TheYouth, Identity, and Digital Media: 1-24. ———. 2000. AfterYouth, Identity, and Digital Media: 71-94. Herr- Stephenson,

  5. Zaragoza's Digital Mile: Place-Making in a New Public Realm [Media and the City

    E-Print Network [OSTI]

    Frenchman, Dennis; Rojas, Francisca

    2006-01-01T23:59:59.000Z

    aims to incorporate digital media into everyday aspects offor experi- ments with digital media. One of Spain’s oldestthe transmutable qualities of digital media? Can it create a

  6. Grant Title: MACARTHUR FOUNDATION AND HASTAC -DIGITAL MEDIA AND LEARNING COMPETITION

    E-Print Network [OSTI]

    Farritor, Shane

    Grant Title: MACARTHUR FOUNDATION AND HASTAC - DIGITAL MEDIA AND LEARNING COMPETITION Funding of the Digital Media and Learning Competition. Today, young people are learning, socializing, and participating Digital Media and Learning Competition challenges designers, entrepreneurs, practitioners, researchers

  7. Ground rubber: Reactive permeable barrier sorption media

    SciTech Connect (OSTI)

    Kershaw, D.S.; Pamukcu, S. [Lehigh Univ., Bethlehem, PA (United States)

    1997-12-31T23:59:59.000Z

    The objective of this research was to examine the feasibility of using ground tire rubber as a sorbent media in reactive permeable barrier systems. Previous research by the current authors has demonstrated that tire rubber can sorb significant quantities of benzene, toluene, ethylbenzene and O-xylene from aqueous solutions. The current research was run to examine the usage rate of ground rubber in a packed bed reactor under specific contact times. In addition, desorption and repetitive sorption tests were run to determine the reversibility of the sorption process for ground tire rubber. These tests were run to determine the regeneration capacity of ground tire rubber. Results of the study show that the usage rates are greater than 50% with an empty bed contact times of 37 minutes, and minimal amounts of energy are needed to regenerate the tire rubber after use.

  8. MARQUETTE UNIVERSITY Speech Signal Enhancement

    E-Print Network [OSTI]

    Johnson, Michael T.

    MARQUETTE UNIVERSITY Speech Signal Enhancement Using A Microphone Array A THESIS SUBMITTED Reserved #12;iii Preface This thesis describes the design and implementation of a speech enhancement system that uses microphone array beamforming and speech enhancement algorithms applied to a speech signal

  9. Green Roof Media Selection forGreen Roof Media Selection for the Minimization of Pollutantthe Minimization of Pollutant

    E-Print Network [OSTI]

    Clark, Shirley E.

    1 Green Roof Media Selection forGreen Roof Media Selection for the Minimization of Pollutantthe Minimization of Pollutant Loadings in Roof RunoffLoadings in Roof Runoff Brett LongBrett Long Shirley Clark for Green Roof Research Green Roofs:Green Roofs: The New BMP (at least in the US)The New BMP (at least

  10. Conversion of above- and below-bandgap photons via InAs quantum dot media embedded into GaAs solar cell

    SciTech Connect (OSTI)

    Sablon, K.; Little, J. [U.S. Army Research Laboratory, Adelphi, Maryland 20783 (United States); Vagidov, N. [Optoelectronic Nanodevices LLC, Amherst, New York 14226 (United States); Li, Y.; Mitin, V.; Sergeev, A. [EE Department, University at Buffalo—SUNY, Buffalo, New York 14260 (United States)

    2014-06-23T23:59:59.000Z

    Quantum dots (QDs) provide photovoltaic conversion of below-bandgap photons due to multistep electron transitions. QDs also increase conversion efficiency of the above-bandgap photons due to extraction of electrons from QDs via Coulomb interaction with hot electrons excited by high-energy photons. Nanoscale potential profile (potential barriers) and nanoscale band engineering (AlGaAs atomically thin barriers) allow for suppression of photoelectron capture to QDs. To study these kinetic effects and to distinguish them from the absorption enhancement due to light scattering on QDs, we investigate long, 3-?m base GaAs devices with various InAs QD media with 20 and 40 QD layers. Quantum efficiency measurements show that, at least at low doping, the multistep processes in QD media are strongly affected by the wetting layer (WL). The QD media with WLs provide substantial conversion of below-bandgap photons and for devices with 40 QD layers the short circuit current reaches 29.2?mA/cm{sup 2}. The QD media with band-engineered AlGaAs barriers and reduced wetting layers (RWL) enhance conversion of high-energy photons and decrease the relaxation (thermal) losses.

  11. Social Media and Messages That Matter: Top Tips and Tools Peer...

    Office of Environmental Management (EM)

    Social Media and Messages That Matter: Top Tips and Tools Peer Exchange Call Social Media and Messages That Matter: Top Tips and Tools Peer Exchange Call July 9...

  12. Using Social Media for Long-Term Branding | Department of Energy

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

    Using Social Media for Long-Term Branding Using Social Media for Long-Term Branding Better Buildings Residential Network Marketing and Outreach Peer Exchange Call Series: Using...

  13. Enhanced Chemical Cleaning

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic Plan Departmentof EnergyPublic LawEnergyEnhanced Chemical Cleaning

  14. "Smart" Multifunctional Polymers for Enhanced Oil Recovery

    SciTech Connect (OSTI)

    Charles McCormick; Andrew Lowe

    2005-10-15T23:59:59.000Z

    Herein we report the synthesis and solution characterization of a novel series of AB diblock copolymers with neutral, water-soluble A blocks comprised of N,N-dimethylacrylamide (DMA) and pH-responsive B blocks of N,N-dimethylvinylbenzylamine (DMVBA). To our knowledge, this represents the first example of an acrylamido-styrenic block copolymer prepared directly in homogeneous aqueous solution. The best blocking order (using polyDMA as a macro-CTA) was shown to yield well-defined block copolymers with minimal homopolymer impurity. Reversible aggregation of these block copolymers in aqueous media was studied by {sup 1}H NMR spectroscopy and dynamic light scattering. Finally, an example of core-crosslinked micelles was demonstrated by the addition of a difunctional crosslinking agent to a micellar solution of the parent block copolymer. Our ability to form micelles directly in water that are responsive to pH represents an important milestone in developing ''smart'' multifunctional polymers that have potential for oil mobilization in Enhanced Oil Recovery Processes.

  15. Tribology Letters Vol. 10, No. 3, 2001 179 Activation of the SiC surface for vapor phase lubrication

    E-Print Network [OSTI]

    Gellman, Andrew J.

    above 500 C [2,3,11,12]. Since liquid lubricants cannot withstand such extreme conditions, a number deposition 1. Introduction The lubrication of ceramic surfaces working at extremely high temperatures has lubrication by Fe chemical vapor deposition from Fe(CO)5 Daxing Ren, Dougyong Sung and Andrew J. Gellman

  16. Chemically sensitive polymer-mediated nanoporous alumina SAW sensors for the detection of vapor-phase analytes 

    E-Print Network [OSTI]

    Perez, Gregory Paul

    2005-08-29T23:59:59.000Z

    We have investigated the chemical sensitivity of nanoporous (NP) alumina-coated surface acoustic wave (SAW) devices that have been surface-modified with polymeric mediating films. The research in this dissertation covers the refinement of the NP...

  17. Formation of etch pits during carbon doping of gallium arsenide with carbon tetrachloride by metalorganic vapor-phase epitaxy

    E-Print Network [OSTI]

    Li, Lian

    Formation of etch pits during carbon doping of gallium arsenide with carbon tetrachloride to examine the effects of carbon tetrachloride concentration and temperature on the morphology of carbon with increasing carbon tetrachloride concentration. Step bunching and pinning was observed at a IV/III ratio

  18. Method and apparatus for maintaining condensable constituents of a gas in a vapor phase during sample transport

    DOE Patents [OSTI]

    Felix, Larry Gordon; Farthing, William Earl; Irvin, James Hodges; Snyder, Todd Robert

    2010-05-18T23:59:59.000Z

    A system for fluid transport at elevated temperatures having a conduit having a fluid inlet end and a fluid outlet end and at least one heating element disposed within the conduit providing direct heating of a fluid flowing through the conduit. The system is particularly suited for preventing condensable constituents of a high temperature fluid from condensing out of the fluid prior to analysis of the fluid. In addition, operation of the system so as to prevent the condensable constituents from condensing out of the fluid surprisingly does not alter the composition of the fluid.

  19. Chemically sensitive polymer-mediated nanoporous alumina SAW sensors for the detection of vapor-phase analytes

    E-Print Network [OSTI]

    Perez, Gregory Paul

    2005-08-29T23:59:59.000Z

    We have investigated the chemical sensitivity of nanoporous (NP) alumina-coated surface acoustic wave (SAW) devices that have been surface-modified with polymeric mediating films. The research in this dissertation covers the refinement of the NP...

  20. High-temperature characteristics of Seebeck coefficients for AlInN alloys grown by metalorganic vapor phase epitaxy

    E-Print Network [OSTI]

    Gilchrist, James F.

    importance for efficient thermal management in high power devices. The availability of III- nitride the calculation of surface and interface energies J. Appl. Phys. 110, 113910 (2011) A strain relief mode of Physics. [doi:10.1063/1.3624761] I. INTRODUCTION High power density and high-temperature requirements

  1. Vapor-phase synthesis of a solid precursor for {alpha}-alumina through a catalytic decomposition of aluminum triisopropoxide

    SciTech Connect (OSTI)

    Nguyen, Tu Quang [Department of Chemical Engineering, Kongju National University, 275 Budae-dong, Cheonan, Chungnam 330-717 (Korea, Republic of)] [Department of Chemical Engineering, Kongju National University, 275 Budae-dong, Cheonan, Chungnam 330-717 (Korea, Republic of); Park, Kyun Young, E-mail: kypark@kongju.ac.kr [Department of Chemical Engineering, Kongju National University, 275 Budae-dong, Cheonan, Chungnam 330-717 (Korea, Republic of); Jung, Kyeong Youl [Department of Chemical Engineering, Kongju National University, 275 Budae-dong, Cheonan, Chungnam 330-717 (Korea, Republic of)] [Department of Chemical Engineering, Kongju National University, 275 Budae-dong, Cheonan, Chungnam 330-717 (Korea, Republic of); Cho, Sung Baek [Korea Institute of Geoscience and Mineral Resources (KIGAM), 92 Gwahang-no, Yuseong-gu 305-350 (Korea, Republic of)] [Korea Institute of Geoscience and Mineral Resources (KIGAM), 92 Gwahang-no, Yuseong-gu 305-350 (Korea, Republic of)

    2011-12-15T23:59:59.000Z

    Highlights: Black-Right-Pointing-Pointer A new solid precursor for {alpha}-alumina was prepared at about 200 Degree-Sign C from aluminum tri-isopropoxide vapor. Black-Right-Pointing-Pointer The obtained precursor was calcined at 1200 Degree-Sign C to form {alpha}-alumina particles, 75 nm in surface area equivalent diameter. Black-Right-Pointing-Pointer The weight loss of the precursor upon calcination was 24%, lower than that of Al(OH){sub 3}, a conventional alumina precursor. -- Abstract: A new solid precursor, hydrous aluminum oxide, for {alpha}-alumina nanoparticles was prepared by thermal decomposition of aluminum triisopropoxide (ATI) vapor in a 500 mL batch reactor at 170-250 Degree-Sign C with HCl as catalyst. The conversion of ATI increased with increasing temperature and catalyst content; it was nearly complete at 250 Degree-Sign C with the catalyst at 10 mol% of the ATI. The obtained precursor particles were amorphous, spherical and loosely agglomerated. The primary particle size is in the range 50-150 nm. The ignition loss of the precursor was 24%, considerably lower than 35% of Al(OH){sub 3}, the popular precursor for alumina particles. Upon calcination of the precursor at 1200 Degree-Sign C in the air with a heating rate of 10 Degree-Sign C/min and a holding time of 2 h, the phase was completely transformed into {alpha}. The spherical particles composing the precursor turned worm-like by the calcination probably due to sintering between neighboring particles. The surface area equivalent diameter of the resulting {alpha}-alumina was 75 nm.

  2. Apparatus and method for maintaining multi-component sample gas constituents in vapor phase during sample extraction and cooling

    DOE Patents [OSTI]

    Felix, Larry Gordon; Farthing, William Earl; Irvin, James Hodges; Snyder, Todd Robert

    2010-05-11T23:59:59.000Z

    A dilution apparatus for diluting a gas sample. The apparatus includes a sample gas conduit having a sample gas inlet end and a diluted sample gas outlet end, and a sample gas flow restricting orifice disposed proximate the sample gas inlet end connected with the sample gas conduit and providing fluid communication between the exterior and the interior of the sample gas conduit. A diluted sample gas conduit is provided within the sample gas conduit having a mixing end with a mixing space inlet opening disposed proximate the sample gas inlet end, thereby forming an annular space between the sample gas conduit and the diluted sample gas conduit. The mixing end of the diluted sample gas conduit is disposed at a distance from the sample gas flow restricting orifice. A dilution gas source connected with the sample gas inlet end of the sample gas conduit is provided for introducing a dilution gas into the annular space, and a filter is provided for filtering the sample gas. The apparatus is particularly suited for diluting heated sample gases containing one or more condensable components.

  3. Method and apparatus for maintaining multi-component sample gas constituents in vapor phase during sample extraction and cooling

    DOE Patents [OSTI]

    Farthing, William Earl (Pinson, AL) [Pinson, AL; Felix, Larry Gordon (Pelham, AL) [Pelham, AL; Snyder, Todd Robert (Birmingham, AL) [Birmingham, AL

    2008-02-12T23:59:59.000Z

    An apparatus and method for diluting and cooling that is extracted from high temperature and/or high pressure industrial processes. Through a feedback process, a specialized, CFD-modeled dilution cooler is employed along with real-time estimations of the point at which condensation will occur within the dilution cooler to define a level of dilution and diluted gas temperature that results in a gas that can be conveyed to standard gas analyzers that contains no condensed hydrocarbon compounds or condensed moisture.

  4. Method and apparatus maintaining multi-component sample gas constituents in vapor phase during sample extraction and cooling

    DOE Patents [OSTI]

    Farthing, William Earl (Pinson, AL); Felix, Larry Gordon (Pelham, AL); Snyder, Todd Robert (Birmingham, AL)

    2009-12-15T23:59:59.000Z

    An apparatus and method for diluting and cooling that is extracted from high temperature and/or high pressure industrial processes. Through a feedback process, a specialized, CFD-modeled dilution cooler is employed along with real-time estimations of the point at which condensation will occur within the dilution cooler to define a level of dilution and diluted gas temperature that results in a gas that can be conveyed to standard gas analyzers that contains no condensed hydrocarbon compounds or condensed moisture.

  5. Towards improved methods for determining porous media multiphase flow functions

    E-Print Network [OSTI]

    Xue, Song

    2004-09-30T23:59:59.000Z

    to the empirical relation by using the three-dimensional saturation and relaxation data. 7 CHAPTER II ESTIMATION OF POROUS MEDIA FLOW FUNCTIONS Multiphase flow functions are required to simulate the flow of multiple fluid phases through porous media....3) Snw + Sw = 1: (2.4) Together with boundary and initial conditions, Eqs. (2.1)-(2.4) provide a mathemat- ical model of three-dimensional, two-phase fluid flow in porous media. Several properties have to be specified in the above model. The densities...

  6. Direct Assay of Filter Media following DEOX Testing

    SciTech Connect (OSTI)

    R.P. Lind; J.J. Giglio; D.G. Cummings; M.W. Huntley; C.D. Morgan; K.J. Bateman; D.L. Wahlquist; D.A. Sell

    2007-09-01T23:59:59.000Z

    The direct assay of filter media by gamma spectrometry following DEOX testing has distinct advantages over analytical chemistry. Prior to using gamma spectrometry for the quantification of cesium (Cs-137), a calibration must be established with known sources since gamma spectrometry yields relative results. Quantitative analytical chemistry, in particular ICP-MS, has been performed on the filter media for comparison to the gamma spectrometry data. The correlation of gamma spectrometry to ICP-MS data is presented to justify the continued use of gamma spectrometry for filter media.

  7. Direct assay of filter media following DEOX testing

    SciTech Connect (OSTI)

    Westphal, B.R.; Lind, R.P.; Giglio, J.J.; Cummings, D.G.; Huntley, M.W.; Morgan, C.D.; Bateman, K.J.; Wahlquist, D.L.; Sell, D.A. [Idaho National Laboratory: P.O. Box 1625, Idaho Falls, ID, 83415 (United States)

    2007-07-01T23:59:59.000Z

    The direct assay of filter media by gamma spectrometry following DEOX testing has distinct advantages over analytical chemistry. Prior to using gamma spectrometry for the quantification of cesium (Cs- 137), a calibration must be established with known sources since gamma spectrometry yields relative results. Quantitative analytical chemistry, in particular ICP-MS, has been performed on the filter media for comparison to the gamma spectrometry data. The correlation of gamma spectrometry to ICP-MS data is presented to justify the continued use of gamma spectrometry for filter media. (authors)

  8. Effect of experimental parameters on optimal transmission of light through opaque media

    E-Print Network [OSTI]

    Anderson, Benjamin R; Eilers, Hergen

    2015-01-01T23:59:59.000Z

    Spatial light modulator (SLM) controlled transmission of light through opaque media is a relatively new experimental method with wide applications in various fields. While there has been a surge in research into the technique, there has been little work reported considering the effects of various experimental parameters on the efficiency of optimization. In this study, we explore the effects of various experimental conditions on optimization and find that the intensity enhancement depends on the number of modulated channels, number of phase steps, feedback integration radius, beam spot size, and active SLM area. We also develop a model, based on the propagation of a Gaussian beam with a random phase front, to account for most of the measured effects.

  9. Voluntary Initiative: Partnering to Enhance Program Capacity...

    Energy Savers [EERE]

    to Enhance Program Capacity Better Buildings Residential Network Program Sustainability Peer Exchange Call Series: Voluntary Initiative: Partnering to Enhance Program...

  10. Enhancing Railroad Hazardous Materials Transportation Safety...

    Office of Environmental Management (EM)

    Enhancing Railroad Hazardous Materials Transportation Safety Rail Routing Enhancing Railroad Hazardous Materials Transportation Safety Rail Routing Presentation made by Kevin...

  11. Atomic Ordering Enhanced Electrocatalytic Activity of Nanoalloys...

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

    Ordering Enhanced Electrocatalytic Activity of Nanoalloys for Oxygen Reduction Reaction. Atomic Ordering Enhanced Electrocatalytic Activity of Nanoalloys for Oxygen Reduction...

  12. Probing Nanoscale Surface Enhanced Raman Scattering Fluctuation...

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

    Nanoscale Surface Enhanced Raman Scattering Fluctuation Dynamics using Correalted AFM and Confocal Ultramicroscopy. Probing Nanoscale Surface Enhanced Raman Scattering Fluctuation...

  13. Seismic Fracture Characterization Methods for Enhanced Geothermal...

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

    Seismic Fracture Characterization Methods for Enhanced Geothermal Systems Seismic Fracture Characterization Methods for Enhanced Geothermal Systems Project objective: Make Seismic...

  14. Advanced interferometric profile measurements through refractive media

    SciTech Connect (OSTI)

    Koev, Stephan T.; Ghodssi, Reza [MEMS Sensors and Actuators Laboratory (MSAL), Department of Electrical and Computer Engineering, Institute for Systems Research, University of Maryland, College Park, Maryland 20742 (United States)

    2008-09-15T23:59:59.000Z

    Optical profilers are valuable tools for the characterization of microelectromechanical systems (MEMSs). They use phase sifting interferometry (PSI) or vertical scanning interferometry to measure the topography of microscale structures with nanometer resolution. However, for many emerging MEMS applications, the sample needs to be imaged while placed in a liquid or in a package with a glass window. The increased refractive index of the transparent medium degrades the interference image contrast and prevents any measurement of the sample. We report on the modification of a Veeco NT1100 optical profiler to enable PSI measurements through refractive media. This approach can be applied to any other optical profiler with PSI capability. The modification consists in replacing the original illumination source with a custom-built narrow linewidth source, which increases the coherence length of the light and the contrast of the interference image. We present measurements taken with the modified configuration on samples covered with 3 mm water or 500 {mu}m glass, and we compare them to measurements of uncovered samples. We show that the measurement precision is only slightly reduced by the water and glass, and that it is still sufficiently high for typical MEMS applications. The described method can be readily used for measuring through other types and thicknesses of refractive materials.

  15. Fluid flow control with transformation media

    E-Print Network [OSTI]

    Urzhumov, Yaroslav A

    2011-01-01T23:59:59.000Z

    We introduce a new concept for the manipulation of fluid flow around three-dimensional bodies. Inspired by transformation optics, the concept is based on a mathematical idea of coordinate transformations, and physically implemented with anisotropic porous media permeable to the flow of fluids. In two different situations - for an impermeable object situated either in a free-flowing fluid or in a fluid-filled porous medium - we show that the object can be coated with a properly chosen inhomogeneous, anisotropic permeable medium, such as to preserve the streamlines of flow and the pressure distribution that would have existed in the absence of the object. The proposed fluid flow cloak completely eliminates any disturbance of the flow by the object, including the downstream wake. Consequently, the structure helps prevent the onset of turbulence by keeping the flow laminar even above the typical critical Reynolds number for the object of the same shape and size. The cloak also cancels the viscous drag force. This...

  16. Plasmonic enhanced ultrafast switch.

    SciTech Connect (OSTI)

    Subramania,Ganapathi Subramanian; Reno, John Louis; Passmore, Brandon Scott; Harris, Tom.; Shaner, Eric Arthur; Barrick, Todd A.

    2009-09-01T23:59:59.000Z

    Ultrafast electronic switches fabricated from defective material have been used for several decades in order to produce picosecond electrical transients and TeraHertz radiation. Due to the ultrashort recombination time in the photoconductor materials used, these switches are inefficient and are ultimately limited by the amount of optical power that can be applied to the switch before self-destruction. The goal of this work is to create ultrafast (sub-picosecond response) photoconductive switches on GaAs that are enhanced through plasmonic coupling structures. Here, the plasmonic coupler primarily plays the role of being a radiation condenser which will cause carriers to be generated adjacent to metallic electrodes where they can more efficiently be collected.

  17. Enhanced oil recovery system

    DOE Patents [OSTI]

    Goldsberry, Fred L. (Spring, TX)

    1989-01-01T23:59:59.000Z

    All energy resources available from a geopressured geothermal reservoir are used for the production of pipeline quality gas using a high pressure separator/heat exchanger and a membrane separator, and recovering waste gas from both the membrane separator and a low pressure separator in tandem with the high pressure separator for use in enhanced oil recovery, or in powering a gas engine and turbine set. Liquid hydrocarbons are skimmed off the top of geothermal brine in the low pressure separator. High pressure brine from the geothermal well is used to drive a turbine/generator set before recovering waste gas in the first separator. Another turbine/generator set is provided in a supercritical binary power plant that uses propane as a working fluid in a closed cycle, and uses exhaust heat from the combustion engine and geothermal energy of the brine in the separator/heat exchanger to heat the propane.

  18. Enhanced Geothermal Systems Technologies

    Broader source: Energy.gov [DOE]

    Geothermal Energy an?d the Enhanced Geothermal Systems Concept The Navy 1 geothermal power plant near Coso Hot Springs, California, is applying EGS technology. Heat is naturally present everywhere in the earth. For all intents and purposes, heat from the earth is inexhaustible. Water is not nearly as ubiquitous in the earth as heat. Most aqueous fluids are derived from surface waters that have percolated into the earth along permeable pathways such as faults. Permeability is a measure of the ease of fluid flow through rock. The permeability of rock results from pores, fractures, joints, faults, and other openings which allow fluids to move. High permeability implies that fluids can flow rapidly through the rock. Permeability and, subsequently, the amount of fluids tend to decrease with depth as openings in the rocks compress from the weight of the overburden.

  19. Photon enhanced thermionic emission

    DOE Patents [OSTI]

    Schwede, Jared; Melosh, Nicholas; Shen, Zhixun

    2014-10-07T23:59:59.000Z

    Photon Enhanced Thermionic Emission (PETE) is exploited to provide improved efficiency for radiant energy conversion. A hot (greater than 200.degree. C.) semiconductor cathode is illuminated such that it emits electrons. Because the cathode is hot, significantly more electrons are emitted than would be emitted from a room temperature (or colder) cathode under the same illumination conditions. As a result of this increased electron emission, the energy conversion efficiency can be significantly increased relative to a conventional photovoltaic device. In PETE, the cathode electrons can be (and typically are) thermalized with respect to the cathode. As a result, PETE does not rely on emission of non-thermalized electrons, and is significantly easier to implement than hot-carrier emission approaches.

  20. LAND REFORM IN NAMIBIA: AN ANALYSIS OF MEDIA COVERAGE

    E-Print Network [OSTI]

    Engelbrecht, Petrus J.

    2014-08-31T23:59:59.000Z

    in ensuring that land reform is successfully designed and executed. The media informs the public, sets the public and political agenda, holds the government accountable, and serves as a public sphere. This project analyses Namibia's three primary daily...

  1. Characterization by mercury porosimetry of nonwoven fiber media with deformation

    E-Print Network [OSTI]

    Rutledge, Gregory C.

    The porosity and pore diameter distribution are important characteristics of nonwoven fiber media. With the advent of electrospinning, the production of mats of nonwoven fibrous materials with fiber diameters in the 0.1-10 ...

  2. Using Social Media to Engage the Community in Energy Efficiency...

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

    Courtney: Well, thank you very much. Julia Diana: Bye-bye. End of Audio Using Social Media to Engage the Community in Energy Efficiency Projects Page 36 of 36 Courtney Smith,...

  3. Evaluation of the Effects of Porous Media Structure on Mixing...

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

    of the Effects of Porous Media Structure on Mixing-Controlled Reactions Using Pore-Scale Modeling and Micromodel Abstract: The objectives of this work were to determine if a...

  4. User-generated censorship : manipulating the maps of social media

    E-Print Network [OSTI]

    Peterson, Christopher E., S.M. Massachusetts Institute of Technology

    2013-01-01T23:59:59.000Z

    The last decade has seen the rise of new technologies for making information more broadly available and accessible. Variously called 'user-generated content,' 'social media,''social news,' 'crowd-curation,' and so on, these ...

  5. A Media Player for Use in Distance Education

    E-Print Network [OSTI]

    Huang, Kai

    We have developed a media player for use in distance education. The player can incorporate several time-indexed sources, including video, audio, PowerPoint, and text index. We have converted all the SMA 5503 Introduction ...

  6. A ceaseless becoming : narratives of adolescence across media

    E-Print Network [OSTI]

    Grigsby, Neal A. (Neal Alan)

    2007-01-01T23:59:59.000Z

    Thesis explores the broad appeal of narratives with adolescent protagonists across a variety of media, including literature, film, and video games. An analysis of key texts within their historical contexts reveals affinities ...

  7. Atom-light interactions in ultracold anisotropic media

    E-Print Network [OSTI]

    Vengalattore, Mukund T., 1977-

    2005-01-01T23:59:59.000Z

    A series of studies on atom-light interactions in ultracold anisotropic media were conducted. Methods to trap ultracold neutral atoms in novel traps with widely tunable trap frequencies and anisotropies were investigated. ...

  8. Flow of pH-responsive microcapsules in porous media

    E-Print Network [OSTI]

    Gun, Wei Jin; Routh, Alexander F.

    2014-11-20T23:59:59.000Z

    1 Flow of pH-responsive microcapsules in porous media Wei Jin Gun and Alexander F. Routh* BP Institute for Multiphase Flow, Department of Chemical Engineering and Biotechnology, University of Cambridge, CB3 0EZ, United Kingdom. Abstract...

  9. Creators, Audiences, and New Media: Creativity in an Interactive Environment

    E-Print Network [OSTI]

    Bell, Isaac William

    2014-08-31T23:59:59.000Z

    interact with creators. In the process, the conceptual limits of bounded roles such as "publics" and "fandoms" will be examined, and the complicating factors of new media interactivity will be established. Chapter Two, "Permeable Boundaries: The Shifting...

  10. Evaluation of Alternative Filter Media for the Rotary Microfilter

    SciTech Connect (OSTI)

    Poirier, M. [Savannah River National Laboratory, Environmental and Chemical Process Technology; Herman, [Savannah River National Laboratory, Environmental and Chemical Process Technology; Bhave, Ramesh R [ORNL

    2012-01-01T23:59:59.000Z

    M. R. Poirier , D. T. Herman & R. Bhave (2012) Evaluation of Alternative Filter Media for the Rotary Microfilter, Separation Science and Technology, 47:14-15, 2108-2114

  11. Uncertainty quantification using multiscale methods for porous media flows

    E-Print Network [OSTI]

    Dostert, Paul Francis

    2009-05-15T23:59:59.000Z

    numerical models. When solving the flow and transport through heterogeneous porous media some type of upscaling or coarsening is needed due to scale disparity. We describe multiscale techniques used for solving the spatial component of the stochastic flow...

  12. Katy Haswell Space on TV and the New Media

    E-Print Network [OSTI]

    Media Players · Archos, Sony PSP etc · Hardrives with a screen. · On the Go internet. · Download. Stream · Sony has already patented the basics for the technology. · Next: Downloading images directly to your

  13. Effective hydraulic conductivity of bounded, strongly heterogeneous porous media

    E-Print Network [OSTI]

    Tartakovsky, Daniel M.

    Effective hydraulic conductivity of bounded, strongly heterogeneous porous media Evangelos K of Arizona, Tucson Abstract. We develop analytical expressions for the effective hydraulic conductivity Ke boundaries. The log hydraulic conductivity Y forms a Gaussian, statistically homogeneous and anisotropic

  14. Celebrity Power: Spotlighting and Persuasion in the Media

    E-Print Network [OSTI]

    Harvey, Mark A.

    2014-05-31T23:59:59.000Z

    As technological and business demands have transformed the operation and demands on news and entertainment media, celebrity activists have proliferated. Only a few years ago, the notion that these celebrities were anything ...

  15. Overlimiting Current and Shock Electrodialysis in Porous Media

    E-Print Network [OSTI]

    Deng, Daosheng

    Most electrochemical processes, such as electrodialysis, are limited by diffusion, but in porous media, surface conduction and electroosmotic flow also contribute to ionic flux. In this article, we report experimental ...

  16. Media Summary 13 19 September 2014 The Star Flying High

    E-Print Network [OSTI]

    West of England, University of the

    ­ Inspiring new generation of talented engineers Bristol Post - Omnidynamics 3D printing business, based ­ Bristol Robotics Laboratory based Omnidynamics 3D printing business Venue ­ Here to help Media Appearances

  17. U-084: Cisco Digital Media Manager Lets Remote Authenticated...

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

    authenticated user can gain elevated privileges on the target system. PLATFORM: Cisco Digital Media Manager: Version(s) 5.22 and prior, 5.2.3 ABSTRACT: The system does not...

  18. PRIMO SEMESTRE (36 ECTS) Economia e politica dei media 6

    E-Print Network [OSTI]

    Krause, Rolf

    , coordinamento, ricerca e sviluppo all'interno di imprese mediali. Master of Science in Gestione dei media Il mercati di riferimento delle industrie editoriali (cinema, radio-tv, stampa giornalistica e libraria, ecc

  19. antimony selective media: Topics by E-print Network

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

    file server. Figure 1 shows a screen dump of the brows... Lawrence A. Rowe; Brian C. Smith 1992-01-01 70 Social Media Success Guide Biology and Medicine Websites Summary: % of...

  20. aqueous perchlorate media: Topics by E-print Network

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

    file server. Figure 1 shows a screen dump of the brows... Lawrence A. Rowe; Brian C. Smith 1992-01-01 80 Social Media Success Guide Biology and Medicine Websites Summary: % of...

  1. america bulletin media: Topics by E-print Network

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

    the imminent End of the World and hence the promised-1- Religion and the Electronic Media in Latin America: A Review Dennis A. Smith First Page Previous Page 1 2 3 4 5 6 7 8...

  2. advanced media research: Topics by E-print Network

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

    7.5 to 13 micron range, which means it is more useable Nebraska-Lincoln, University of 20 Media Contact: Gretchen Smith New Hampshire Innovation Research Center Materials Science...

  3. aqueous media cloreto: Topics by E-print Network

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

    file server. Figure 1 shows a screen dump of the brows... Lawrence A. Rowe; Brian C. Smith 1992-01-01 27 Social Media Success Guide Biology and Medicine Websites Summary: % of...

  4. acute otitis media: Topics by E-print Network

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

    file server. Figure 1 shows a screen dump of the brows... Lawrence A. Rowe; Brian C. Smith 1992-01-01 39 Media Briefing February 2010 Biology and Medicine Websites Summary:...

  5. acidic media correlation: Topics by E-print Network

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

    file server. Figure 1 shows a screen dump of the brows... Lawrence A. Rowe; Brian C. Smith 1992-01-01 88 Social Media Success Guide Biology and Medicine Websites Summary: % of...

  6. aqueous media renaissance: Topics by E-print Network

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

    file server. Figure 1 shows a screen dump of the brows... Lawrence A. Rowe; Brian C. Smith 1992-01-01 96 Social Media Success Guide Biology and Medicine Websites Summary: % of...

  7. aqueous media sintesis: Topics by E-print Network

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

    file server. Figure 1 shows a screen dump of the brows... Lawrence A. Rowe; Brian C. Smith 1992-01-01 31 Social Media Success Guide Biology and Medicine Websites Summary: % of...

  8. acoustic tiltedti media: Topics by E-print Network

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

    especially those operating under lean-premixed (LPM) conditions. While LPM (more) Smith, Zachary A. 2011-01-01 17 Effects of acoustic waves on stickslip in granular media...

  9. approaching media consumption: Topics by E-print Network

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

    Luneburg lens. Ray-trace studies provide a confirmation of the performance of the QCTO media, while also revealing the limited performance of index-only versions of these...

  10. angiographic contrast media: Topics by E-print Network

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

    file server. Figure 1 shows a screen dump of the brows... Lawrence A. Rowe; Brian C. Smith 1992-01-01 52 Social Media Success Guide Biology and Medicine Websites Summary: % of...

  11. aqueous media stereoselectivity: Topics by E-print Network

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

    file server. Figure 1 shows a screen dump of the brows... Lawrence A. Rowe; Brian C. Smith 1992-01-01 40 Social Media Success Guide Biology and Medicine Websites Summary: % of...

  12. acid media ehkstraktsionnye: Topics by E-print Network

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

    file server. Figure 1 shows a screen dump of the brows... Lawrence A. Rowe; Brian C. Smith 1992-01-01 30 Social Media Success Guide Biology and Medicine Websites Summary: % of...

  13. antismoking media campaigns: Topics by E-print Network

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

    file server. Figure 1 shows a screen dump of the brows... Lawrence A. Rowe; Brian C. Smith 1992-01-01 137 Social Media Success Guide Biology and Medicine Websites Summary: %...

  14. aqueous media sintese: Topics by E-print Network

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

    file server. Figure 1 shows a screen dump of the brows... Lawrence A. Rowe; Brian C. Smith 1992-01-01 28 Social Media Success Guide Biology and Medicine Websites Summary: % of...

  15. Social Media, Research, and Ethics: Challenges and Strategies

    E-Print Network [OSTI]

    Biederman, Irving

    Chair in Ethics University of Wisconsin-Stout Presentation for The Department of Energy, skype, social media, tweets, online course software, etc · Increasingly, the line between tool ­ Description of research risks/potential benefits ­ Solicitation of identifiable private information (e

  16. Induced Magnetism in Color-Superconducting Media

    E-Print Network [OSTI]

    Efrain J. Ferrer

    2010-01-22T23:59:59.000Z

    The dense core of compact stars is the natural medium for the realization of color superconductivity. A common characteristic of such astrophysical objects is their strong magnetic fields, especially those of the so called magnetars. In this talk, I discuss how a color superconducting core can generate or/and enhance the stellar magnetic field independently of a magnetohydrodynamic dynamo mechanism. The magnetic field generator is in this case a gluonic current which circulates to stabilize the color superconductor in the presence of a strong magnetic field or under the pairing stress produced in the medium by the neutrality and $\\beta$-equilibrium constraints.

  17. Backside configured surface plasmonic enhancement

    SciTech Connect (OSTI)

    Gu, Guiru; Lu, Xuejun, E-mail: xuejun-lu@uml.edu [Department of Electrical and Computer Engineering, University of Massachusetts Lowell, One University Avenue, Lowell, MA 01854 (United States); Vaillancourt, Jarrod [Applied NanoFemto Technologies, LLC, 181 Stedman St. 2, Lowell, MA 01851 (United States)

    2014-03-31T23:59:59.000Z

    In this work, we fabricated, measured and compared the quantum dots infrared photodetector enhancement by the top- and backside- configured plasmonic structures. The backside configured plasmonic structure can provide much higher device performance enhancement. Furthermore, the excitation of the surface plasmonic waves by the top- and backside- configured plasmonic structures was analyzed. Detailed simulation results of the electric field at different wavelength from top illumination and backside illumination were provided. The stronger electric field from the backside illumination attributed to the higher enhancement.

  18. Method to manufacture bit patterned magnetic recording media

    DOE Patents [OSTI]

    Raeymaekers, Bart; Sinha, Dipen N

    2014-05-13T23:59:59.000Z

    A method to increase the storage density on magnetic recording media by physically separating the individual bits from each other with a non-magnetic medium (so-called bit patterned media). This allows the bits to be closely packed together without creating magnetic "cross-talk" between adjacent bits. In one embodiment, ferromagnetic particles are submerged in a resin solution, contained in a reservoir. The bottom of the reservoir is made of piezoelectric material.

  19. Increasing energy efficiency of grinding media through microscale comminution studies

    SciTech Connect (OSTI)

    Lo, Y.C.; Goller, G.A. [GS Technologies/Control International Inc., Salt Lake City, UT (United States)

    1995-12-31T23:59:59.000Z

    Microscale studies involving an ultrafast load cell have been shown to provide direct and accurate measurements of particle strength, particle fracture energy and particle breakage functions under different loading geometry conditions. The effect of grinding media size, shape, density and surface properties on the energy efficiency can be quantitatively determined for different materials to be ground. The applications of microscale comminution studies have been demonstrated to provide good predictions of grinding mill performance with different grinding media.

  20. Enhanced Control Installations.pdf

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

    correctness. Title: Individual Permit, High Priority Sites, Examples of Enhanced Control Installations, Poster, Individual Permit for Storm Water, NPDES Permit No. NM0030759...

  1. MAS Media Arts and Studies KEY: # = new course * = course changed = course dropped

    E-Print Network [OSTI]

    MacAdam, Keith

    MAS Media Arts and Studies KEY: # = new course * = course changed = course dropped University TO MEDIA AND CULTURE. (3) This course focuses on the study of electronic mass media. It surveys media, culture, and power. MAS 201 COMMUNICATION TECHNOLOGIES AND SOCIETY. (3

  2. DYNAMICS OF FREE SURFACES IN RANDOM POROUS MEDIA DANIEL M. TARTAKOVSKY AND C. L. WINTER

    E-Print Network [OSTI]

    Tartakovsky, Daniel M.

    media to be concrete. Predicting flow through natural porous media is complicated by their high degreeDYNAMICS OF FREE SURFACES IN RANDOM POROUS MEDIA DANIEL M. TARTAKOVSKY AND C. L. WINTER SIAM J­1876 Abstract. We consider free surface flow in random porous media by treating hydraulic conduc- tivity

  3. Macrodispersivity tensor for nonreactive solute transport in isotropic and anisotropic fractal porous media

    E-Print Network [OSTI]

    Zhan, Hongbin

    porous media: Analytical solutions Hongbin Zhan1 and Stephen W. Wheatcraft Hydrology/Hydrogeology Program

  4. UNIVERSITY OF CALIFORNIA, SANTA CRUZ DEPARTMENT OF FILM AND DIGITAL MEDIA DEPARTMENT

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    UNIVERSITY OF CALIFORNIA, SANTA CRUZ DEPARTMENT OF FILM AND DIGITAL MEDIA DEPARTMENT Lecturer Pool: Film and Television Industry The Film and Digital Media Department at the University of California: Master's or doctorate degree in film, digital media, art, television, new media, social documentation

  5. Extended papers from NPAR 2010 Stylized ambient displays of digital media collections

    E-Print Network [OSTI]

    Collomosse, John

    Extended papers from NPAR 2010 Stylized ambient displays of digital media collections Tinghuai Wang collections of personal digital media. However, once captured, this media is infrequently accessed and often lies dormant on users' PCs. We present a system to breathe life into home digital media collections

  6. A digital platform for marketing communications in the mobile and social media space

    E-Print Network [OSTI]

    Boyer, Edmond

    A digital platform for marketing communications in the mobile and social media space Otto Petrovic media. Keywords: digital marketing platform, mobile advertising, social media marketing, mobile of communications via mobile messaging with numerous other digital media, e.g. mobile websites, mobile clients for i

  7. Fundamental Studies of Fluid Mechanics: Stability in Porous Media

    SciTech Connect (OSTI)

    George M. Homsy

    2005-04-28T23:59:59.000Z

    This work has been concerned with theoretical, computational and experimental studies of a variety of flow and transport problems that are of generic interest and applicability in energy-related and energy-intensive processes. These include the following. (1) Problems associated with oil recovery: the global economy continues to be dependent on the stable and predictable supply of oil and fossil fuels. This will remain the case for the near term, as current estimates are that world production of oil will peak between 2025 and 2100, depending on assumptions regarding growth. Most of these resources reside in porous rocks and other naturally occurring media. Studies of flow-induced instabilities are relevant to the areas of secondary and enhanced oil recovery. (2) Small scale and Stokes flows: flows in microgeometries and involving interfaces and surfactants are of interest in a myriad of energy-related contexts. These include: pore-level modeling of the fundamental processes by which oil held in porous materials is mobilized and produced; heating and cooling energy cycles involving significant expenditure of energy in conditioning of human environments, heat pipes, and compact heat exchangers; and energy efficiency in large scale separation processes such as distillation and absorption-processes that underlie the chemical process industries. (3) Coating flows: these are of interest in information technologies, including the manufacture of integrated circuits and data storage and retrieval devices. It is estimated that 50-70% of the starting raw materials and intermediate devices in information technology processes must be discarded as a result of imperfections and failure to meet specifications. These in turn are often the result of the inability to control fluid-mechanical processes and flow instabilities. Our work over the grant period is primarily fundamental in nature. We are interested in establishing general principles and behaviors that relate to a variety of processes in a variety of contexts. Our work has focused and will continue to focus on fluid mechanical phenomena that are of interest in energy-related technologies, with an emphasis on interfacial flows.

  8. Production Well Performance Enhancement using Sonication Technology

    SciTech Connect (OSTI)

    Adewumi, Michael A; Ityokumbul, M Thaddeus; Watson, Robert W; Eltohami, Eltohami; Farias, Mario; Heckman, Glenn; Houlihan, Brendan; Karoor, Samata Prakash; Miller, Bruce G; Mohammed, Nazia; Olanrewaju, Johnson; Ozdemir, Mine; Rejepov, Dautmamed; Sadegh, Abdallah A; Quammie, Kevin E; Zaghloul, Jose; Hughes, W Jack; Montgomery, Thomas C

    2005-12-31T23:59:59.000Z

    The objective of this project was to develop a sonic well performance enhancement technology that focused on near wellbore formation damage. In order to successfully achieve this objective, a three-year project was defined. The entire project was broken into four tasks. The overall objective of all this was to foster a better understanding of the mechanisms involved in sonic energy interactions with fluid flow in porous media and adapt such knowledge for field applications. The fours tasks are: • Laboratory studies • Mathematical modeling • Sonic tool design and development • Field demonstration The project was designed to be completed in three years; however, due to budget cuts, support was only provided for the first year, and hence the full objective of the project could not be accomplished. This report summarizes what was accomplished with the support provided by the US Department of Energy. Experiments performed focused on determining the inception of cavitation, studying thermal dissipation under cavitation conditions, investigating sonic energy interactions with glass beads and oil, and studying the effects of sonication on crude oil properties. Our findings show that the voltage threshold for onset of cavitation is independent of transducer-hydrophone separation distance. In addition, thermal dissipation under cavitation conditions contributed to the mobilization of deposited paraffins and waxes. Our preliminary laboratory experiments suggest that waxes are mobilized when the fluid temperature approaches 40°C. Experiments were conducted that provided insights into the interactions between sonic wave and the fluid contained in the porous media. Most of these studies were carried out in a slim-tube apparatus. A numerical model was developed for simulating the effect of sonication in the nearwellbore region. The numerical model developed was validated using a number of standard testbed problems. However, actual application of the model for scale-up purposes was limited due to funding constraints. The overall plan for this task was to perlorm field trials with the sonication tooL These trials were to be performed in production and/or injection wells located in Pennsylvania, New York, and West Virginia. Four new wells were drilled in preparation for the field demonstration. Baseline production data were collected and reservoir simulator tuned to simulate these oil reservoirs. The sonication tools were designed for these wells. However, actual field testing could not be carried out because of premature termination of the project.

  9. 36 AUGUST | 2011 EnhancEd TurbinE

    E-Print Network [OSTI]

    Kusiak, Andrew

    36 AUGUST | 2011 EnhancEd TurbinE PErformancE moniToring comPonEnTs of wind TurbinEs are affected by asymmetric loads, variable wind speeds, and se- vere weather conditions which cause wind turbines to change their states. A typical wind turbine under- goes various states during its daily operations. The wind turbine

  10. Spacer-less, decoupled granular L1{sub 0} FePt magnetic media using Ar-He sputtering gas

    SciTech Connect (OSTI)

    Kundu, Shreya [Department of Electrical and Computer Engineering, National University of Singapore, 21 Lower Kent Ridge Road, Singapore 117576 (Singapore); Institute of Materials Research and Engineering, A-STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602 (Singapore); Gaur, Nikita; Yang, Hyunsoo; Bhatia, Charanjit S. [Department of Electrical and Computer Engineering, National University of Singapore, 21 Lower Kent Ridge Road, Singapore 117576 (Singapore); Saifullah, M. S. M. [Institute of Materials Research and Engineering, A-STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602 (Singapore)

    2012-12-01T23:59:59.000Z

    Spacer materials are often used to fabricate granular L1{sub 0} FePt media and reduce the grain size, however, at the expense of reduced out-of-plane coercivity. Here, we demonstrate a spacer-less method in which adding 1% helium to argon sputtering gas leads to a substantial improvement in the chemical ordering, as well as the magnetic and microstructural properties of FePt. This change is attributed to the modification in the ion current density of the plasma caused by the excited metastable helium species. Helium plays a pivotal role in providing the Fe and Pt atoms optimal adatom mobility, thereby, producing well-ordered L1{sub 0} FePt media. This leads to an enhancement of the out-of-plane coercivity from 15 to 22 kOe. Furthermore, exchange decoupled grains with a twofold reduction in their diameter to {approx}24 nm are also achieved. These properties are crucial for magnetic media of the future for data storage recording densities beyond 1 Tb/in{sup 2}.

  11. Lignite Fuel Enhancement

    SciTech Connect (OSTI)

    Charles Bullinger; Nenad Sarunac

    2010-03-31T23:59:59.000Z

    Pulverized coal power plants which fire lignites and other low-rank high-moisture coals generally operate with reduced efficiencies and increased stack emissions due to the impacts of high fuel moisture on stack heat loss and pulverizer and fan power. A process that uses plant waste heat sources to evaporate a portion of the fuel moisture from the lignite feedstock in a moving bed fluidized bed dryer (FBD) was developed in the U.S. by a team led by Great River Energy (GRE). The demonstration was conducted with Department of Energy (DOE) funding under DOE Award Number DE-FC26-04NT41763. The objectives of GRE's Lignite Fuel Enhancement project were to demonstrate reduction in lignite moisture content by using heat rejected from the power plant, apply technology at full scale at Coal Creek Station (CCS), and commercialize it. The Coal Creek Project has involved several stages, beginning with lignite drying tests in a laboratory-scale FBD at the Energy Research Center (ERC) and development of theoretical models for predicting dryer performance. Using results from these early stage research efforts, GRE built a 2 ton/hour pilot-scale dryer, and a 75 ton/hour prototype drying system at Coal Creek Station. Operated over a range of drying conditions, the results from the pilot-scale and prototype-scale dryers confirmed the performance of the basic dryer design concept and provided the knowledge base needed to scale the process up to commercial size. Phase 2 of the GRE's Lignite Fuel Enhancement project included design, construction and integration of a full-scale commercial coal drying system (four FBDs per unit) with Coal Creek Units 1 and 2 heat sources and coal handling system. Two series of controlled tests were conducted at Coal Creek Unit 1 with wet and dried lignite to determine effect of dried lignite on unit performance and emissions. Wet lignite was fired during the first, wet baseline, test series conducted in September 2009. The second test series was performed in March/April 2010 after commercial coal drying system was commissioned. Preliminary tests with dried coal were performed in March/April 2010. During the test Unit 2 was in outage and, therefore, test unit (Unit 1) was carrying entire station load and, also, supplying all auxiliary steam extractions. This resulted in higher station service, lower gross power output, and higher turbine cycle heat rate. Although, some of these effects could be corrected out, this would introduce uncertainty in calculated unit performance and effect of dried lignite on unit performance. Baseline tests with dried coal are planned for second half of 2010 when both units at Coal Creek will be in service to establish baseline performance with dried coal and determine effect of coal drying on unit performance. Application of GRE's coal drying technology will significantly enhance the value of lignite as a fuel in electrical power generation power plants. Although existing lignite power plants are designed to burn wet lignite, the reduction in moisture content will increase efficiency, reduce pollution and CO{sub 2} emissions, and improve plant economics. Furthermore, the efficiency of ultra supercritical units burning high-moisture coals will be improved significantly by using dried coal as a fuel. To date, Great River Energy has had 63 confidentiality agreements signed by vendors and suppliers of equipment and 15 utilities. GRE has had agreements signed from companies in Canada, Australia, China, India, Indonesia, and Europe.

  12. Hyperbolic-metamaterial antennas for broadband enhancement of dipole emission to free space

    SciTech Connect (OSTI)

    Valagiannopoulos, C. A. [Department of Radio Science and Engineering, School of Electrical Engineering, Aalto University, P.O. Box 13000, FI-00076 Aalto (Finland); Department of Electrical and Computer Engineering, University of Texas at Austin, 1616 Guadalupe St., Texas 78712 (United States); Mirmoosa, M. S.; Nefedov, I. S.; Tretyakov, S. A.; Simovski, C. R. [Department of Radio Science and Engineering, School of Electrical Engineering, Aalto University, P.O. Box 13000, FI-00076 Aalto (Finland)

    2014-10-28T23:59:59.000Z

    Dipole emitters used in nano optics and nanophotonics (e.g., fluorescent molecules or quantum dots) are weak radiators and thus detecting the radiation of a single emitter gets possible only if it is significantly enhanced. For this enhancement, one often utilizes resonant nanoantennas (Purcell's effect); this method, however, requires the exact knowledge of source location and radiation frequency which constitute a significant drawback. One known possibility for broadband location-insensitive radiation enhancement is to use a layer of the so-called hyperbolic metamaterial. However, the enhanced radiated energy is mainly directed into the volume of the lossy medium, where it is lost to heating. In this work, we suggest specific shapes of macroscopic hyperbolic metamaterial samples to open radiation windows for enhanced radiation to free space. We show that hyperbolic media slabs with properly shaped macroscopic grooves convert the evanescent waves produced by a dipole into waves traveling in free space, which results in the enhancement of useful radiation by one to two orders of magnitude. That level of enhancement of radiation into free-space which is also wideband and of non-resonant nature has not been reported up to now. These results may open possibilities for realization of broadband and directive antennas, where the primary radiators are randomly positioned fluorescent molecules or quantum dots.

  13. Grating enhanced solid-state laser amplifiers

    DOE Patents [OSTI]

    Erlandson, Alvin C. (Livermore, CA); Britten, Jerald A. (Clayton, CA)

    2010-11-09T23:59:59.000Z

    A novel method and apparatus for suppressing ASE and parasitic oscillation modes in a high average power laser is introduced. Such an invention, as disclosed herein, uses diffraction gratings to increase gain, stored energy density, and pumping efficiency of solid-state laser gain media, such as, but not limited to rods, disks and slabs. By coupling predetermined gratings to solid-state gain media, such as crystal or ceramic laser gain media, ASE and parasitic oscillation modes can be effectively suppressed.

  14. Media, Markets and Meaning: Placing Sustainable Development and Environmental Conservation and Enrichment at Risk

    E-Print Network [OSTI]

    Hershock, Peter D

    2006-01-01T23:59:59.000Z

    . In countries with mature media markets—the U.S. is, perhaps, the best, though not necessarily most extreme, example—time spend in media consumption now exceeds a per capita average of 6 hours per day.12 This is time not spent developing new relational... and media consumption that did not depend upon media content performing a coupling function. As a result of advances in communication technologies, the scale of media consumption crossed a decisive threshold beyond which the explicit content...

  15. Manufacturing serendipity: Chicago Innovation Exchange enhancing...

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

    Social Media Photos Videos Fact Sheets, Brochures and Reports Summer Science Writing Internship John Flavin, Executive Director of the Chicago Innovation Exchange, started a small...

  16. Enhanced local tomography

    DOE Patents [OSTI]

    Katsevich, Alexander J. (Los Alamos, NM); Ramm, Alexander G. (Manhattan, KS)

    1996-01-01T23:59:59.000Z

    Local tomography is enhanced to determine the location and value of a discontinuity between a first internal density of an object and a second density of a region within the object. A beam of radiation is directed in a predetermined pattern through the region of the object containing the discontinuity. Relative attenuation data of the beam is determined within the predetermined pattern having a first data component that includes attenuation data through the region. In a first method for evaluating the value of the discontinuity, the relative attenuation data is inputted to a local tomography function .function..sub..LAMBDA. to define the location S of the density discontinuity. The asymptotic behavior of .function..sub..LAMBDA. is determined in a neighborhood of S, and the value for the discontinuity is estimated from the asymptotic behavior of .function..sub..LAMBDA.. In a second method for evaluating the value of the discontinuity, a gradient value for a mollified local tomography function .gradient..function..sub..LAMBDA..epsilon. (x.sub.ij) is determined along the discontinuity; and the value of the jump of the density across the discontinuity curve (or surface) S is estimated from the gradient values.

  17. Enhanced Micellar Catalysis LDRD.

    SciTech Connect (OSTI)

    Betty, Rita G.; Tucker, Mark David; Taggart, Gretchen; Kinnan, Mark K.; Glen, Crystal Chanea; Rivera, Danielle; Sanchez, Andres; Alam, Todd Michael

    2012-12-01T23:59:59.000Z

    The primary goals of the Enhanced Micellar Catalysis project were to gain an understanding of the micellar environment of DF-200, or similar liquid CBW surfactant-based decontaminants, as well as characterize the aerosolized DF-200 droplet distribution and droplet chemistry under baseline ITW rotary atomization conditions. Micellar characterization of limited surfactant solutions was performed externally through the collection and measurement of Small Angle X-Ray Scattering (SAXS) images and Cryo-Transmission Electron Microscopy (cryo-TEM) images. Micellar characterization was performed externally at the University of Minnesota's Characterization Facility Center, and at the Argonne National Laboratory Advanced Photon Source facility. A micellar diffusion study was conducted internally at Sandia to measure diffusion constants of surfactants over a concentration range, to estimate the effective micelle diameter, to determine the impact of individual components to the micellar environment in solution, and the impact of combined components to surfactant phase behavior. Aerosolized DF-200 sprays were characterized for particle size and distribution and limited chemical composition. Evaporation rates of aerosolized DF-200 sprays were estimated under a set of baseline ITW nozzle test system parameters.

  18. Enhanced membrane gas separations

    SciTech Connect (OSTI)

    Prasad, R.

    1993-07-13T23:59:59.000Z

    An improved membrane gas separation process is described comprising: (a) passing a feed gas stream to the non-permeate side of a membrane system adapted for the passage of purge gas on the permeate side thereof, and for the passage of the feed gas stream in a counter current flow pattern relative to the flow of purge gas on the permeate side thereof, said membrane system being capable of selectively permeating a fast permeating component from said feed gas, at a feed gas pressure at or above atmospheric pressure; (b) passing purge gas to the permeate side of the membrane system in counter current flow to the flow of said feed gas stream in order to facilitate carrying away of said fast permeating component from the surface of the membrane and maintaining the driving force for removal of the fast permeating component through the membrane from the feed gas stream, said permeate side of the membrane being maintained at a subatmospheric pressure within the range of from about 0.1 to about 5 psia by vacuum pump means; (c) recovering a product gas stream from the non-permeate side of the membrane; and (d) discharging purge gas and the fast permeating component that has permeated the membrane from the permeate side of the membrane, whereby the vacuum conditions maintained on the permeate side of the membrane by said vacuum pump means enhance the efficiency of the gas separation operation, thereby reducing the overall energy requirements thereof.

  19. Slow light enhanced photon echoes

    E-Print Network [OSTI]

    J. Hahn; B. S. Ham

    2009-09-28T23:59:59.000Z

    We report a slow light-enhanced photon echo method, whose retrieval efficiency is two orders of magnitude higher than that of conventional photon echoes. The enhanced photon echo efficiency is due to lengthened interaction time given by ultraslow group velocity.

  20. Modeling shear failure and permeability enhancement due to coupled Thermal-Hydrological-Mechanical processes in Enhanced Geothermal Reservoirs

    SciTech Connect (OSTI)

    Kelkar, Sharad [Los Alamos National Laboratory

    2011-01-01T23:59:59.000Z

    The connectivity and accessible surface area of flowing fractures, whether natural or man-made, is possibly the single most important factor, after temperature, which determines the feasibility of an Enhanced Geothermal System (EGS). Rock deformation and in-situ stress changes induced by injected fluids can lead to shear failure on preexisting fractures which can generate microseismic events, and also enhance the permeability and accessible surface area of the geothermal formation. Hence, the ability to accurately model the coupled thermal-hydrologic-mechanical (THM) processes in fractured geological formations is critical in effective EGS reservoir development and management strategies. The locations of the microseismic events can serve as indicators of the zones of enhanced permeability, thus providing vital information for verification of the coupled THM models. We will describe a general purpose computational code, FEHM, developed for this purpose, that models coupled THM processes during multiphase fluid flow and transport in fractured porous media. The code incorporates several models of fracture aperture and stress behavior combined with permeability relationships. We provide field scale examples of applications to geothermal systems to demonstrate the utility of the method.

  1. Innovative Porous Media Approach in Modeling Biofilm Applications, Human Eye and Nanofluid Based Heat Pipes

    E-Print Network [OSTI]

    Shafahi, Maryam

    2010-01-01T23:59:59.000Z

    bioremediation, microbial enhanced oil recovery, and metalin bioremediation, microbial enhanced oil recovery and metalwater treatment, enhanced oil recovery, groundwater recharge

  2. Competition between extinction and enhancement in surface enhanced Raman spectroscopy

    E-Print Network [OSTI]

    van Dijk, Thomas; DeVetter, Brent M; Yang, Timothy K; Schulmerich, Matthew V; Murphy, Catherine J; Bhargava, Rohit; Carney, P Scott

    2013-01-01T23:59:59.000Z

    Conjugated metallic nanoparticles are a promising means to achieve ultrasensitive and multiplexed sensing in intact three-dimensional samples, especially for biological applications, via surface enhanced Raman scattering (SERS). We show that enhancement and extinction are linked and compete in a collection of metallic nanoparticles. Counterintuitively, the Raman signal vanishes when nanoparticles are excited at their plasmon resonance, while increasing nanoparticle concentrations at off-resonance excitation sometimes leads to decreased signal. We develop an effective medium theory that explains both phenomena. Optimal choices of excitation wavelength, individual particle enhancement factor and concentrations are indicated.

  3. Numerical Simulation of Compositional Fluid Flow in Porous Media

    E-Print Network [OSTI]

    Ewing, Richard E.

    variables is developed for modeling the enhanced oil recovery pro- cesses. A mixed #12;nite element method to predict the reservoir performance under various exploita- tion schemes. In many enhanced oil recovery. Computational results for two- and three-phase multi-component uid ow occurring in enhanced oil re- covery

  4. Block copolymer nanolithography for the fabrication of patterned media.

    SciTech Connect (OSTI)

    Warke, Vishal V [ORNL; Bakker, Martin G [ORNL; Hong, Kunlun [ORNL; Mays, Jimmy [ORNL; Britt, Phillip F [ORNL; Li, Xuefa [Argonne National Laboratory (ANL); Wang, Jin [Argonne National Laboratory (ANL)

    2008-01-01T23:59:59.000Z

    Abstract Bit patterned perpendicular media has the potential to increase the density of magnetic recording beyond what can be achieved by granular media. Self assembling diblock copolymers are of interest as templates for patterned media, as they potentially provide a low cost fabrication route. A method to fabricate the desired pattern using cylinder forming diblock copolymers of (PS-b-PMMA) as template is reported. Upon phase separation hexagonally packed cylinders of the minority phase (PMMA) surrounded by the continuous majority phase (PS) are obtained. The processing sequence began with spin coating the block copolymer on a suitable substrate, followed by annealing the block copolymer thin film in vacuum to orient it perpendicular to the substrate. Block copolymer templates were obtained by glacial acetic acid treatment which opened the pores in the block copolymer thin film. Ni was electrodeposited in the block copolymer templates and this pattern was then transferred onto the underlying substrate by ion milling

  5. RMOTC - Testing - Enhanced Oil Recovery

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

    Enhanced Oil Recovery Notice: As of July 1st, 2014, Testing at RMOTC has officially completed. We would like to thank all of our testing partners and everyone who helped make the...

  6. Geothermal Permeability Enhancement - Final Report

    SciTech Connect (OSTI)

    Joe Beall; Mark Walters

    2009-06-30T23:59:59.000Z

    The overall objective is to apply known permeability enhancement techniques to reduce the number of wells needed and demonstrate the applicability of the techniques to other undeveloped or under-developed fields. The Enhanced Geothermal System (EGS) concept presented in this project enhances energy extraction from reduced permeability zones in the super-heated, vapor-dominated Aidlin Field of the The Geysers geothermal reservoir. Numerous geothermal reservoirs worldwide, over a wide temperature range, contain zones of low permeability which limit the development potential and the efficient recovery of heat from these reservoirs. Low permeability results from poorly connected fractures or the lack of fractures. The Enhanced Geothermal System concept presented here expands these technologies by applying and evaluating them in a systematic, integrated program.

  7. Loan Enhancement Program (New Hampshire)

    Broader source: Energy.gov [DOE]

    The Loan Enhancement Program enables bank and other lending institutions to provide up to 90% fixed asset financing by guaranteeing that the portion of the loan exceeding the bank’s lending...

  8. Composite media for fluid stream processing, a method of forming the composite media, and a related method of processing a fluid stream

    DOE Patents [OSTI]

    Garn, Troy G; Law, Jack D; Greenhalgh, Mitchell R; Tranter, Rhonda

    2014-04-01T23:59:59.000Z

    A composite media including at least one crystalline aluminosilicate material in polyacrylonitrile. A method of forming a composite media is also disclosed. The method comprises dissolving polyacrylonitrile in an organic solvent to form a matrix solution. At least one crystalline aluminosilicate material is combined with the matrix solution to form a composite media solution. The organic solvent present in the composite media solution is diluted. The composite media solution is solidified. In addition, a method of processing a fluid stream is disclosed. The method comprises providing a beads of a composite media comprising at least one crystalline aluminosilicate material dispersed in a polyacrylonitrile matrix. The beads of the composite media are contacted with a fluid stream comprising at least one constituent. The at least one constituent is substantially removed from the fluid stream.

  9. Growth of chrysanthemums in sewage sludge amended media

    E-Print Network [OSTI]

    Schlutt, Edward Frederick

    1979-01-01T23:59:59.000Z

    1979 ABSTRACT Growth of Chrysanthemums in Sewage Sludge Amended Media. (December 1979) Edwaz d Fnedez ick Schlutt, Jr . B. S. , Texas AFN University Chairman of Advisory Committee: Dr. Everett R. Emino Chr santhemum morifolium cv. 'Bz ight Golden... porosity, total postharvest porosity, non-capillazy pore space, pre- harvest pH and postharvest pH in sewage sludge amended peat-perlite media. 40 TABLE 14. Average heavy metal content in 100% sewage sludge (ug/gm) . 42 TABLE 16. Zinc content (ug/gm...

  10. Sustained infectivity of chlamydial organisms in different transport media 

    E-Print Network [OSTI]

    Garner, Stephen Alan

    1986-01-01T23:59:59.000Z

    solution (SAPS) (9). One mammalian strain, LW 679 (LW) was isolated from a sheep (30). One avian isolate (TT), recovered from a turkey in Texas in 1952, was used (1). Avian isolate (WWD) was from a white-winged dove (14). The fourth strain, designated... LGV 440, was a human isolate of C. trachomatis. Stock cultures of each isolate were grown in embryonating hens' eggs according to the procedure of Lennette et al. (19). Transport media. Four transport media were examined in this study' SAPS has...

  11. Enhanced Renewable Methane Production System | Argonne National...

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

    Enhanced Renewable Methane Production System Technology available for licensing: Enhanced renewable methane production system provides a low-cost process that accelerates...

  12. Develop & evaluate materials & additives that enhance thermal...

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

    evaluate materials & additives that enhance thermal & overcharge abuse Develop & evaluate materials & additives that enhance thermal & overcharge abuse 2009 DOE Hydrogen Program...

  13. Develop & Evaluate Materials & Additives that Enhance Thermal...

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

    Evaluate Materials & Additives that Enhance Thermal & Overcharge Abuse Develop & Evaluate Materials & Additives that Enhance Thermal & Overcharge Abuse 2011 DOE Hydrogen and Fuel...

  14. Optimize carbon dioxide sequestration, enhance oil recovery

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

    Optimize carbon dioxide sequestration, enhance oil recovery Optimize carbon dioxide sequestration, enhance oil recovery The simulation provides an important approach to estimate...

  15. Prospects for Enhancing Carbon Sequestration and Reclamation...

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

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

  16. Lab Breakthrough: Desiccant Enhanced Evaporative Air Conditioning...

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

    Desiccant Enhanced Evaporative Air Conditioning Lab Breakthrough: Desiccant Enhanced Evaporative Air Conditioning May 29, 2012 - 5:22pm Addthis This breakthrough combines desiccant...

  17. Sandia Energy - Continuous Reliability Enhancement for Wind ...

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

    Enhancement for Wind (CREW): Project Update Home Renewable Energy Energy News Wind Energy News & Events Systems Analysis Continuous Reliability Enhancement for Wind (CREW):...

  18. Seismic stimulation for enhanced oil recovery

    E-Print Network [OSTI]

    Pride, S.R.

    2008-01-01T23:59:59.000Z

    aims to enhance oil production by sending seismic wavesbe expected to enhance oil production. INTRODUCTION The hopethe reservoir can cause oil production to increase. Quite

  19. Speech enhancement and source separation using probabilistic models

    E-Print Network [OSTI]

    Hao, Jiucang

    2008-01-01T23:59:59.000Z

    Speech Enhancement using Gaussian Scale MixtureResults for Speech Enhancement . . . . . . . . .Part I: Speech Enhancement . . . . . . . . . . 1.3.2 Part

  20. Empowering Students to Develop Literacy and Narrative Skills in ASL and English Through Digital Media/Visual Arts in Storytelling /

    E-Print Network [OSTI]

    Sharer, Valerie Anne

    2013-01-01T23:59:59.000Z

    English through Digital Media/Visual Arts in Storytelling,English through Digital Media/Visual Arts in Storytelling AEnglish Through Digital Media/Visual Arts in Storytelling A

  1. Final Report - Montana State University - Microbial Activity and Precipitation at Solution-Solution Mixing Zones in Porous Media

    SciTech Connect (OSTI)

    Gerlach, Robin [Montana State University

    2014-10-31T23:59:59.000Z

    Background. The use of biological and chemical processes that degrade or immobilize contaminants in subsurface environments is a cornerstone of remediation technology. The enhancement of biological and chemical processes in situ, involves the transport, displacement, distribution and mixing of one or more reactive agents. Biological and chemical reactions all require diffusive transport of solutes to reaction sites at the molecular scale and accordingly, the success of processes at the meter-scale and larger is dictated by the success of phenomena that occur at the micron-scale. However, current understanding of scaling effects on the mixing and delivery of nutrients in biogeochemically dynamic porous media systems is limited, despite the limitations this imposes on the efficiency and effectiveness of the remediation challenges at hand. Objectives. We therefore proposed to experimentally characterize and computationally describe the growth, evolution, and distribution of microbial activity and mineral formation as well as changes in transport processes in porous media that receive two or more reactive amendments. The model system chosen for this project was based on a method for immobilizing 90Sr, which involves stimulating microbial urea hydrolysis with ensuing mineral precipitation (CaCO3), and co-precipitation of Sr. Studies at different laboratory scales were used to visualize and quantitatively describe the spatial relationships between amendment transport and consumption that stimulate the production of biomass and mineral phases that subsequently modify the permeability and heterogeneity of porous media. Biomass growth, activity, and mass deposition in mixing zones was investigated using two-dimensional micro-model flow cells as well as flow cells that could be analyzed using synchrotron-based x-ray tomography. Larger-scale flow-cell experiments were conducted where the spatial distribution of media properties, flow, segregation of biological activity and impact on ancillary constituents (i.e., Sr) was determined. Model simulations accompanied the experimental efforts. Benefits and Outcomes of the Project. The research contributed towards defining the key physical, chemical, and biological processes influencing the form and mobility of DOE priority contaminants (e.g., 60Co, 90Sr, U) in the subsurface. The work conducted and reported herein, will in the future (i) contribute to controlling the juxtaposition of microbial activity, contaminants and amendments, (ii) promote new strategies for delivering amendments, and (iii) allow new approaches for modifying permeability and flow in porous media. We feel that the work has already translated directly to improving the efficiency of amendment based remediation strategies. Products. The results of the project have been published in a number of peer reviewed journal articles. The abstracts and citations to those articles, given in section 2.0 below, make up the bulk of this final report.

  2. Social media offers many ways to grow business

    SciTech Connect (OSTI)

    Madison, Alison L.

    2011-03-13T23:59:59.000Z

    Facebook and Twitter and YouTube, oh my! For some of us the added communications channels offered by social media can feel overwhelming in a hurry. But whether we like it or not, they’re proving to be valuable marketing tools that small and large companies alike are jumping on board to explore.

  3. Web-Based Visual Analytics for Social Media

    SciTech Connect (OSTI)

    Best, Daniel M.; Bruce, Joseph R.; Dowson, Scott T.; Love, Oriana J.; McGrath, Liam R.

    2012-05-20T23:59:59.000Z

    Social media provides a rich source of data that reflects current trends and public opinion on a multitude of topics. The data can be harvested from Twitter, Facebook, Blogs, and other social applications. The high rate of adoption of social media has created a domain that has an ever expanding volume of data that make it difficult to use the raw data for analysis. Information visual analytics is key in drawing out features of interest in social media. The Scalable Reasoning System is an application that couples a back end server performing analysis algorithms and an intuitive front end visualization to allow for investigation. We provide a componentized system that can be rapidly adapted to customer needs such that the information they are most interested in is brought to their attention through the application. To this end, we have developed a social media application for use by emergency operations for the city of Seattle to show current weather and traffic trends which is important for their tasks.

  4. Combustion fronts in porous media with two layers Steve Schecter

    E-Print Network [OSTI]

    Schecter, Stephen

    Combustion fronts in porous media with two layers layer 1 layer 2 Steve Schecter North Carolina Subject: Propagation of a combustion front through a porous medium with two parallel layers having different properties. · Each layer admits a traveling combustion wave. · The layers are coupled by heat

  5. Mechanisms of virus removal during transport in unsaturated porous media

    E-Print Network [OSTI]

    Flury, Markus

    Mechanisms of virus removal during transport in unsaturated porous media Yanjie Chu and Yan Jin retention and retardation during transport in unsaturated systems. In this study, bacteriophages X174 and MS at the solid-water interface rather than at the air-water interface dominates in virus removal and transport

  6. Media contact: FOR IMMEDIATE RELEASE Diana Hanford September 24, 2012

    E-Print Network [OSTI]

    Belogay, Eugene A.

    to 22 technology companies working in conjunction with the FAU College of Engineering and ComputerMedia contact: FOR IMMEDIATE RELEASE Diana Hanford September 24, 2012 Ambit Advertising and Public by FAU student-based teams working on industry projects. It also serves as a knowledge resource center

  7. Modulational instability and solitons in nonlocal media with competing nonlinearities

    SciTech Connect (OSTI)

    Esbensen, B. K.; Bache, M.; Bang, O. [DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, DK-2800 Kgs. Lyngby (Denmark); Wlotzka, A. [Department of Physics, Institut fuer Theoretische Festkoerperphysik, University of Karlsruhe, D-76128 Karlsruhe (Germany); Krolikowski, W. [Laser Physics Centre, Research School of Physics and Engineering, Australian National University, Canberra, Australian Capital Territory 0200 (Australia)

    2011-11-15T23:59:59.000Z

    We investigate analytically and numerically propagation and spatial localization of light in nonlocal media with competing nonlinearities. In particular, we discuss conditions for the modulational instability of plane waves and formation of spatial solitons. We show that the competing focusing and defocusing nonlinearities enable coexistence of dark or bright spatial solitons in the same medium by varying the intensity of the beam.

  8. Non-dissipative electromagnetic media with two Lorentz null cones

    SciTech Connect (OSTI)

    Dahl, Matias F., E-mail: matias.dahl@aalto.fi

    2013-03-15T23:59:59.000Z

    We study Maxwell's equations on a 4-manifold where the electromagnetic medium is modeled by an antisymmetric (2/2 )-tensor with 21 real coefficients. In this setting the Fresnel surface is a fourth-order polynomial surface that describes the dynamical response of the medium in the geometric optics limit. For example, in an isotropic medium the Fresnel surface is a Lorentz null cone. The contribution of this paper is the pointwise description of all electromagnetic medium tensors {kappa} with real coefficients that satisfy the following three conditions: (i)medium {kappa} is invertible, (ii)medium {kappa} is skewon-free, or non-dissipative, (iii)the Fresnel surface of {kappa} is the union of two distinct Lorentz null cones. We show that there are only three classes of media with these properties and give explicit expressions in local coordinates for each class. - Highlights: Black-Right-Pointing-Pointer We find two new electromagnetic media classes for which the Fresnel surface decomposes into two light cones. Black-Right-Pointing-Pointer In a suitable setting we classify all electromagnetic media where this is the case. Black-Right-Pointing-Pointer We find an electromagnetic medium tensor with three different signal speeds in one direction. Black-Right-Pointing-Pointer The work is related to [5], which classifies all media with one light cone (in a suitable setting).

  9. California Energy Commission Media Office POWER PLANT FACT SHEET

    E-Print Network [OSTI]

    California Energy Commission Media Office POWER PLANT FACT SHEET Updated: 12/4/2012 (Includes: Lodi has licensed or given small power plant exemptions to 78 power plants, totaling 29,156* megawatts (MW). Fifty-four licensed power plants are in operation, producing 17,737 MW. Since Governor Brown took office

  10. Ubiquitous Media Agents for Managing Personal Multimedia Files

    E-Print Network [OSTI]

    Liu, Wenyin

    1 Ubiquitous Media Agents for Managing Personal Multimedia Files Liu Wenyin, Zheng Chen, Fan Lin personalized semantic indices of multimedia data on behalf of the user whenever and wherever he/she accesses/uses these multimedia data. The sources of these semantic descriptions are the textual context of the same documents

  11. CAMBIENCE: A Video-Driven Sonic Ecology for Media Spaces

    E-Print Network [OSTI]

    Greenberg, Saul

    CAMBIENCE: A Video-Driven Sonic Ecology for Media Spaces Rob Diaz-Marino and Saul Greenberg Processing Software. General Terms Algorithms, Human Factors. Keywords Cambience, Sonic Ecologies, Abstract computers relies on our visual perception, so it is no wonder that continuous awareness information

  12. Validated Leverett Approach for Multiphase Flow in PEFC Diffusion Media

    E-Print Network [OSTI]

    Mench, Matthew M.

    . Kumbur,* K. V. Sharp, and M. M. Mench**,z Fuel Cell Dynamics and Diagnostics Laboratory, Department in thin-film polymer electrolyte fuel cell PEFC diffusion media DM . The present work is devoted temperature under various compressions 0, 0.6, and 1.4 MPa typically encountered in a fuel cell assembly

  13. Validated Leverett Approach for Multiphase Flow in PEFC Diffusion Media

    E-Print Network [OSTI]

    Mench, Matthew M.

    . C. Kumbur,* K. V. Sharp, and M. M. Mench**,z Fuel Cell Dynamics and Diagnostics Laboratory function appropriate for SGL 24 series carbon paper fuel cell diffusion media DM that describes to obtain estimates for the water retention capacity of a typical fuel cell DM as a function

  14. Acoustic wave propagation in two-phase heterogeneous porous media

    E-Print Network [OSTI]

    J. I. Osypik; N. I. Pushkina; Ya. M. Zhileikin

    2015-03-19T23:59:59.000Z

    The propagation of an acoustic wave through two-phase porous media with spatial variation in porosity is studied. The evolutionary wave equation is derived, and the propagation of an acoustic wave is numerically analyzed in application to marine sediments with various physical parameters.

  15. Engineering of Ferrite-Graphite Composite Media for Microwave Shields

    E-Print Network [OSTI]

    Koledintseva, Marina Y.

    Engineering of Ferrite-Graphite Composite Media for Microwave Shields Marina Koledintseva, PoornaAA@mpei.ru Abstract-- An electromagnetic shielding of objects using ferrite-graphite composites is considered- shielding; dielectric base material; ferrite- graphite composite, Maxwell Garnett formulation I

  16. THE INFLUENCING MACHINE BROOKE GLADSTONE ON THE MEDIA

    E-Print Network [OSTI]

    Pantaleone, Jim

    THE INFLUENCING MACHINE BROOKE GLADSTONE ON THE MEDIA UAA/APU Books Yearof the www. When members of the community take it upon themselves to report on an issue or event using the press. "A Picture is Worth a Thousand Words." Does The Influencing Machine affirm this statement? Please

  17. Remote Health Monitoring Using Online Social Media Systems

    E-Print Network [OSTI]

    Bhatti, Saleem N.

    Remote Health Monitoring Using Online Social Media Systems Chonlatee Khorakhun University of St@cs.st-andrews.ac.uk Abstract--Remote monitoring is considered an essential part of future eHealth systems to enable the general requirements of a remote monitoring scenario and the process of building and using a Facebook

  18. Modeling Multicomponent Diffusion and Convection in Porous Media

    E-Print Network [OSTI]

    Firoozabadi, Abbas

    the bottom-hot side of the porous media, may be at higher concentration at the cold-top side in ternary apparatus.8-10 On the other hand, in hy- drocarbon reservoirs, there is generally more methane on the cold

  19. Diffusion with dissolution and precipitation in a porous media

    E-Print Network [OSTI]

    Herbin, Raphaèle

    Diffusion with dissolution and precipitation in a porous media approximation by a finite volume. Quelques tests numériques sont ensuite montrés. KEYWORDS: diffusion, dissolution­precipitation, porous­ ficiency of such disposals relies on material barriers. For such a use, cement concrete offers

  20. Meek School of Journalism and New Media Journalism Internship Guidelines

    E-Print Network [OSTI]

    Tchumper, Gregory S.

    Meek School of Journalism and New Media Journalism Internship Guidelines An internship is vital preparation for your career in journalism. To get credit for an internship, it must give you significant be at least of junior-level standing to get credit for your internship. You must be a Journalism major. STEP 1

  1. Digital Media and Publishing have never been closer than

    E-Print Network [OSTI]

    Digital Media and Publishing have never been closer than they are today. In 2014 we have a full slate of workshops on trending topics. NEW! Creating Digital Fiction with Kate Pullinger JUNE 9 ­ 13 An immersive writing/authoring workshop with digital fiction pioneer Kate Pullinger. Digital Publishing 101

  2. Seismic response of fractures and induced anisotropy in poroelastic media

    E-Print Network [OSTI]

    Santos, Juan

    Seismic response of fractures and induced anisotropy in poroelastic media Juan E. Santos stituto) and R. Mart´inez Corredor (UNLP) Department of Mathematics, University of Calgary, October 2014 Seismic variations of velocity and attenuation of seismic waves. Seismic response of fractures and induced anisotropy

  3. Trinity College Dublin Procedures for recording media broadcasts on campus

    E-Print Network [OSTI]

    O'Mahony, Donal E.

    Trinity College Dublin Procedures for recording media broadcasts on campus Introduction: Trinity of communication through which the College can communicate with large audiences and Trinity welcomes arises. Trinity receives many requests to film and record programme material and in order to facilitate

  4. Foams and granular media known state of mat-

    E-Print Network [OSTI]

    Cox, Simon

    Foams and granular media 2 known state of mat- design glasses with de- perties on an industrial n disordered ail in this review, mod- proaches to the glass ledge of advanced liq- renormalization group, FIG a broad range of lengthscales, such as atomic (top left), colloidal (top right) systems, but also in foams

  5. V-236: MediaWiki CentralAuth Extension Authentication Bypass...

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

    in the CentralAuth extension for MediaWiki, which can be exploited by malicious people to bypass certain security restrictions. PLATFORM: MediaWiki CentralAuth Extension...

  6. A gestural media framework : tools for expressive gesture recognition and mapping in rehearsal and performance

    E-Print Network [OSTI]

    Jessop, Elena Naomi

    2010-01-01T23:59:59.000Z

    As human movement is an incredibly rich mode of communication and expression, performance artists working with digital media often use performers' movement and gestures to control and shape that digital media as part of a ...

  7. From Writers and Readers to Participants: A Rhetorical/Historical Perspective on Authorship in Social Media

    E-Print Network [OSTI]

    Melzow, Candice

    2012-10-19T23:59:59.000Z

    of social media content. First, past models of authorship are surveyed to locate rhetorical precedents for the model(s) that currently exists in social media. After comparing potential historical precedents to the overall process of content creation...

  8. An unstructured finite volume simulator for multiphase flow through fractured-porous media

    E-Print Network [OSTI]

    Bajaj, Reena

    2009-01-01T23:59:59.000Z

    Modeling of multiphase flow in fractured media plays an integral role in management and performance prediction of oil and gas reserves. Geological characterization and nmultiphase flow simulations in fractured media are ...

  9. Participatory media and collaborative facilitation : developing tools for aligning values to practice in organizations

    E-Print Network [OSTI]

    Martin, Danielle Marie, M. C. P. Massachusetts Institute of Technology

    2009-01-01T23:59:59.000Z

    The advantages of participation, collaboration, and iteration shape the functionality of media tools like blogs, social networks, and user-created media sharing sites. At first glance, these tools should easily align with ...

  10. Isis, Cabbage and Viper : new tools and strategies for designing responsive media

    E-Print Network [OSTI]

    Agamanolis, Stefan Panayiotis

    2001-01-01T23:59:59.000Z

    Responsive media are media that can sense and react intelligently to factors like presentation conditions or equipment, audience identity or profile, direct interaction, history or anticipation of involvement, and so on. ...

  11. Analytical Solutions for 1D Countercurrent Imbibition in Water-Wet Media

    E-Print Network [OSTI]

    Firoozabadi, Abbas

    are thin. The imbibition of water in the matrix block of a fractured reservoir when immersed in water is often important in two-phase flow in fractured porous media and in layered media where individual layers

  12. L10-FePt Media for Next-Generation Data Storage Devices

    E-Print Network [OSTI]

    Fernandez, Robert Anthony

    2010-01-01T23:59:59.000Z

    substrates for the use in BPM, with a heat sink layer forsuch as bit-patterned media (BPM), heat-assisted magneticas bit-patterned media (BPM) 77 , heat-assisted magnetic

  13. The management of transmedia production in an era of media and digital convergence

    E-Print Network [OSTI]

    Merkin, Andrew D. (Andrew David)

    2010-01-01T23:59:59.000Z

    As the digital and media convergence era hits its full stride and media companies struggle to maintain profitability in sectors of the entertainment industry, the production of transmedia experiences is becoming more ...

  14. DIGITAL MEDIA INDEXING ON THE CELL PROCESSOR Lurng-Kuo Liu1

    E-Print Network [OSTI]

    Kuzmanov, Georgi

    and entertainment business is being changed by the deluge of digital media content. This deluge is driving the need

  15. Origin of second-harmonic generation enhancement in optical split-ring resonators

    E-Print Network [OSTI]

    Ciracě, Cristian; Scalora, Michael; Smith, David R

    2012-01-01T23:59:59.000Z

    We present a study of the second-order nonlinear optical properties of metal-based metamaterials. A hydrodynamic model for electronic response is used, in which nonlinear surface contributions are expressed in terms of the bulk polarization. The model is in good agreement with published experimental results, and clarifies the mechanisms contributing to the nonlinear response. In particular, we show that the reported enhancement of second-harmonic in split-ring resonator based media is driven by the electric rather than the magnetic properties of the structure.

  16. RHIC Enhanced Luminosity Program Wolfram Fischer

    E-Print Network [OSTI]

    experiments ~ 5% maintenance and access goal 100h/week #12;Wolfram Fischer 9 Enhanced Design Parameters #12;Wolfram Fischer 10 Enhanced Design Parameters (~2008*) Parameter unit Achieved Enhanced design Au1 RHIC Enhanced Luminosity Program Wolfram Fischer Science and Technology Review by the Office

  17. SPEECH DECOMPOSITION AND ENHANCEMENT Sungyub Yoo

    E-Print Network [OSTI]

    Allen, Jont

    SPEECH DECOMPOSITION AND ENHANCEMENT by Sungyub Yoo BS, Soonchunhyang University, 1995 MS enhance speech intelligibility is examined. Computer algorithms to decompose speech into two different enhanced speech. The energy of the enhanced speech was adjusted to be equal to the original speech

  18. Enhancement of Topological Insulators Surface Conduction

    E-Print Network [OSTI]

    Yu, Xinxin

    2012-01-01T23:59:59.000Z

    Enhancement of Topological Insulators Surface Conduction AEnhancement of Topological Insulators Surface Conduction byTopological Insulator

  19. Leadership Enhancement Program What is it?

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    Van Stryland, Eric

    Leadership Enhancement Program What is it? The UCF Leadership Enhancement Program provides leadership development opportunities for program scholars to gain career enhancing skills and leadership their date of employment by July 1 of the current year are eligible to apply for the Leadership Enhancement

  20. Leadership Enhancement Program What is it?

    E-Print Network [OSTI]

    Van Stryland, Eric

    Leadership Enhancement Program What is it? The UCF Leadership Enhancement Program provides leadership development opportunities for program scholars to gain career enhancing skills and leadership for the Leadership Enhancement Program. What are the Benefits? Monthly Seminars--a common core of seminars