Sample records for zone flow qualifiers

  1. SATURATED ZONE FLOW AND TRANSPORT MODEL ABSTRACTION

    SciTech Connect (OSTI)

    B.W. ARNOLD

    2004-10-27T23:59:59.000Z

    The purpose of the saturated zone (SZ) flow and transport model abstraction task is to provide radionuclide-transport simulation results for use in the total system performance assessment (TSPA) for license application (LA) calculations. This task includes assessment of uncertainty in parameters that pertain to both groundwater flow and radionuclide transport in the models used for this purpose. This model report documents the following: (1) The SZ transport abstraction model, which consists of a set of radionuclide breakthrough curves at the accessible environment for use in the TSPA-LA simulations of radionuclide releases into the biosphere. These radionuclide breakthrough curves contain information on radionuclide-transport times through the SZ. (2) The SZ one-dimensional (I-D) transport model, which is incorporated in the TSPA-LA model to simulate the transport, decay, and ingrowth of radionuclide decay chains in the SZ. (3) The analysis of uncertainty in groundwater-flow and radionuclide-transport input parameters for the SZ transport abstraction model and the SZ 1-D transport model. (4) The analysis of the background concentration of alpha-emitting species in the groundwater of the SZ.

  2. Electrically heated particulate filter with zoned exhaust flow control

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI

    2012-06-26T23:59:59.000Z

    A system includes a particulate matter (PM) filter that includes X zones. An electrical heater includes Y heater segments that are associated with respective ones of the X zones. The electrical heater is arranged upstream from and proximate with the PM filter. A valve assembly includes Z sections that are associated with respective ones of the X zones. A control module adjusts flow through each of the Z sections during regeneration of the PM filter via control of the valve assembly. X, Y and Z are integers.

  3. www.VadoseZoneJournal.org | 12011, Vol. 10 Flow Processes in the Dry

    E-Print Network [OSTI]

    Wildenschild, Dorthe

    www.VadoseZoneJournal.org | 12011, Vol. 10 Flow Processes in the Dry Regime: The Effect believe that noncontinuum processes such as vapor diffusion and film flow contribute to the observed vadose zone processes in general. Using a theoreti- cal film flow equation that incorporates the surface

  4. Anisotropy and mantle flow in the Chile-Argentina subduction zone from shear wave splitting analysis

    E-Print Network [OSTI]

    Fouch, Matthew J.

    Anisotropy and mantle flow in the Chile-Argentina subduction zone from shear wave splitting subduction zone. Data is from the CHARGE network, which traversed Chile and western Argentina across two, M. L., G. Zandt, E. Triep, M. Fouch, and S. Beck (2004), Anisotropy and mantle flow in the Chile-Argentina

  5. Renaissance Zones (North Dakota)

    Broader source: Energy.gov [DOE]

    Renaissance Zones allow qualifying businesses and individuals to claim one or more tax incentives for purchasing, leasing, or making improvements to real property located in a North Dakota...

  6. Transient Flow in a Heterogeneous Vadose Zone with Uncertain Parameters

    SciTech Connect (OSTI)

    A. M. Tartakovsky; Luis Garcia-Naranjo; Daniel M. Tartakovsky

    2004-02-01T23:59:59.000Z

    We consider transient flow in unsaturated heterogeneous porous media with uncertain hydraulic parameters. Our aim is to provide unbiased predictions (estimates) of system states, such as pressure head, water content, and fluxes, and to quantify the uncertainty associated with such predictions. We achieve this goal by treating hydraulic parameters as random fields and the corresponding flow equations as stochastic. Current stochastic analyses of transient flow in partially saturated soils require linearization of the constitutive relations, which may lead to significant inaccuracies when these relations are highly nonlinear. If relative conductivity and saturation vary exponentially with pressure and the corresponding scaling parameters are random variables, the transient Richards equation is mapped onto a linear equation by means of the Kirchhoff transformation. This allows us to develop deterministic differential equations for the first and second ensemble moments of pressure and saturation. We solve these equations analytically, for vertical infiltration, and compare them with direct Monte Carlo simulations.

  7. PREFERENTIAL FLOW THROUGH EARTHEN LANDFILL COVERS: FIELD EVALUATION OF ROOT ZONE WATER QUALITY MODEL (RZWQM) AND

    E-Print Network [OSTI]

    Abstract PREFERENTIAL FLOW THROUGH EARTHEN LANDFILL COVERS: FIELD EVALUATION OF ROOT ZONE WATER into the waste, earthen landfill covers are constructed once a landfill reaches its capacity. Formation earthen landfill covers during service. Most commonly used water balance models that are used

  8. Field tracer investigation of unsaturated zone flow paths and mechanisms in agricultural soils of northwestern Mississippi, USA

    E-Print Network [OSTI]

    of agricultural chemicals and withdrawal of groundwater for irrigation have led to water quality and supply issues flow of water below the root zone is consid- ered minimal; regional groundwater models predict only 5 within and below the root zone of a fallow soy- bean field were assessed by performing a 2-m ring

  9. Meridional Flow in the Solar Convection Zone II: Helioseismic Inversions of GONG Data

    E-Print Network [OSTI]

    Jackiewicz, J; Kholikov, S

    2015-01-01T23:59:59.000Z

    Meridional flow is thought to play a very important role in the dynamics of the solar convection zone; however, because of its relatively small amplitude, precisely measuring it poses a significant challenge. Here we present a complete time-distance helioseismic analysis of about two years of ground-based GONG Doppler data to retrieve the meridional circulation profile for modest latitudes, in an attempt to corroborate results from other studies. We use an empirical correction to the travel times due to an unknown center-to-limb systematic effect. The helioseismic inversion procedure is first tested and reasonably validated on artificial data from a large-scale numerical simulation, followed by a test to broadly recover the solar differential rotation found from global seismology. From GONG data, we measure poleward photospheric flows at all latitudes with properties that are comparable with earlier studies, and a shallow equatorward flow about $65$\\,Mm beneath the surface, in agreement with recent findings f...

  10. Energy Simulation of Integrated Multiple-Zone Variable Refrigerant Flow System

    SciTech Connect (OSTI)

    Shen, Bo [ORNL] [ORNL; Rice, C Keith [ORNL] [ORNL; Baxter, Van D [ORNL] [ORNL

    2013-01-01T23:59:59.000Z

    We developed a detailed steady-state system model, to simulate the performance of an integrated five-zone variable refrigerant flow (VRF)heat pump system. The system is multi-functional, capable of space cooling, space heating, combined space cooling and water heating, and dedicated water heating. Methods were developed to map the VRF performance in each mode, based on the abundant data produced by the equipment system model. The performance maps were used in TRNSYS annual energy simulations. Using TRNSYS, we have successfully setup and run cases for a multiple-split, VRF heat pump and dehumidifier combination in 5-zone houses in 5 climates that control indoor dry-bulb temperature and relative humidity. We compared the calculated energy consumptions for the VRF heat pump against that of a baseline central air source heat pump, coupled with electric water heating and the standalone dehumidifiers. In addition, we investigated multiple control scenarios for the VRF heat pump, i.e. on/off control, variable indoor air flow rate, and using different zone temperature setting schedules, etc. The energy savings for the multiple scenarios were assessed.

  11. Gas-powder flow in blast furnace with different shapes of cohesive zone

    SciTech Connect (OSTI)

    Dong, X.F.; Pinson, D.; Zhang, S.J.; Yu, A.B.; Zulli, P. [University of New South Wales, Sydney, NSW (Australia)

    2006-11-15T23:59:59.000Z

    With high PCI rate operations, a large quantity of unburned coal/char fines will flow together with the gas into the blast furnace. Under some operating conditions, the holdup of fines results in deterioration of furnace permeability and lower production efficiency. Therefore, it is important to understand the behaviour of powder (unburnt coal/char) inside the blast furnace when operating with different cohesive zone (CZ) shapes. This work is mainly concerned with the effect of cohesive zone shape on the powder flow and accumulation in a blast furnace. A model is presented which is capable of simulating a clear and stable accumulation region in the lower central region of the furnace. The results indicate that powder is likely to accumulate at the lower part of W-shaped CZs and the upper part of V- and inverse V-shaped CZs. For the same CZ shape, a thick cohesive layer can result in a large pressure drop while the resistance of narrow cohesive layers to gas-powder flow is found to be relatively small. Implications of the findings to blast furnace operation are also discussed.

  12. Tax Deduction Qualified Software

    Broader source: Energy.gov [DOE]

    On this page you'll find information about the EnergyGauge Summit version 3.20 (incorporating DOE-2.1E (v120)) qualified computer software (buildings.energy.gov/qualified_software.html), which calculates energy and power cost savings that meet federal tax incentive requirements for commercial buildings.

  13. Tax Deduction Qualified Software

    Broader source: Energy.gov [DOE]

    On this page you'll find information about the EnergyGauge Summit version 3.22 (incorporating DOE-2.1E (v120)) qualified computer software (buildings.energy.gov/qualified_software.html), which calculates energy and power cost savings that meet federal tax incentive requirements for commercial buildings.

  14. Tax Deduction Qualified Software

    Broader source: Energy.gov [DOE]

    On this page you'll find information about the EnergyGauge Summit version 3.21 (incorporating DOE-2.1E (v120)) qualified computer software (buildings.energy.gov/qualified_software.html), which calculates energy and power cost savings that meet federal tax incentive requirements for commercial buildings.

  15. Keystone Opportunity Zones (Pennsylvania)

    Broader source: Energy.gov [DOE]

    Keystone Opportunity Zones allows businesses located within designated areas to qualify for a tax exemption, deduction, credit, or abatement of state and local taxes such as sales and use tax,...

  16. Statewide Empire Zone Program (New York)

    Broader source: Energy.gov [DOE]

    Business that do not meet the requirements for standard financing, but are in need of capital, may qualify for NYBDC’s Statewide Empire Zone Program. The Statewide Zone Capital Corporation (SZCC),...

  17. Geostatistical and Stochastic Study of Flow and Transport in the Unsaturated Zone at Yucca Mountain

    SciTech Connect (OSTI)

    Ye, Ming; Pan, Feng; Hu, Xiaolong; Zhu, Jianting

    2007-08-14T23:59:59.000Z

    Yucca Mountain has been proposed by the U.S. Department of Energy as the nation’s long-term, permanent geologic repository for spent nuclear fuel or high-level radioactive waste. The potential repository would be located in Yucca Mountain’s unsaturated zone (UZ), which acts as a critical natural barrier delaying arrival of radionuclides to the water table. Since radionuclide transport in groundwater can pose serious threats to human health and the environment, it is important to understand how much and how fast water and radionuclides travel through the UZ to groundwater. The UZ system consists of multiple hydrogeologic units whose hydraulic and geochemical properties exhibit systematic and random spatial variation, or heterogeneity, at multiple scales. Predictions of radionuclide transport under such complicated conditions are uncertain, and the uncertainty complicates decision making and risk analysis. This project aims at using geostatistical and stochastic methods to assess uncertainty of unsaturated flow and radionuclide transport in the UZ at Yucca Mountain. Focus of this study is parameter uncertainty of hydraulic and transport properties of the UZ. The parametric uncertainty arises since limited parameter measurements are unable to deterministically describe spatial variability of the parameters. In this project, matrix porosity, permeability and sorption coefficient of the reactive tracer (neptunium) of the UZ are treated as random variables. Corresponding propagation of parametric uncertainty is quantitatively measured using mean, variance, 5th and 95th percentiles of simulated state variables (e.g., saturation, capillary pressure, percolation flux, and travel time). These statistics are evaluated using a Monte Carlo method, in which a three-dimensional flow and transport model implemented using the TOUGH2 code is executed with multiple parameter realizations of the random model parameters. The project specifically studies uncertainty of unsaturated flow and radionuclide transport caused by multi-scale heterogeneity at the layer and local scales. Typically, in studies of Yucca Mountain, the layer scale refers to hydrogeologic layers with layer-wise average properties, and the local scale refers to the spatial variation of hydraulic properties within a layer. While most studies of radionuclide transport in the UZ have been conducted at the layer scale, the uncertainty at the local scale within a layer is also important, since it affects flow path, velocity, and travel time of radionuclide. This report first presents the uncertainty caused by layer-scale heterogeneity of matrix permeability, porosity, and sorption coefficients of reactive tracers. Homogeneous fields of the parameters are generated at each hydrogeologic layer for Monte Carlo simulations. This study is referred to as the homogeneous case. To assess the uncertainty caused by local-scale heterogeneity, the sequential Gaussian simulator (SGSIM) of GSLIB (Deutsch and Journel, 1998) is used to generate heterogeneous parameter fields within each layer, and Monte Carlo simulations are conducted. This study is referred to as the heterogeneous cases. For the homogeneous and heterogeneous cases, the mean, variance, 5th and 95th percentiles of simulated state variables are estimated for uncertainty assessment. In addition, the statistics of the two cases are compared to investigate effect of local-scale heterogeneity on the unsaturated flow and radionuclide transport. It is found that the local-scale heterogeneity increased the predictive uncertainty of percolation flux and cumulative mass arrival for computational blocks below the footprint of proposed repository, whereas mean predictions are hardly affected. The local-scale heterogeneity significantly affects travel times to the water table for both conservative and reactive tracers. In the early simulation period, tracer mean travel times are delayed, whereas the influence of local-scale heterogeneity diminishes during the late simulation period. Simulated state variables in this project are more reali

  18. Method and apparatus for affecting a recirculation zone in a cross flow

    DOE Patents [OSTI]

    Bathina, Mahesh (Andhra Pradesh, IN); Singh, Ramanand (Uttar Pradesh, IN)

    2012-07-17T23:59:59.000Z

    Disclosed is a cross flow apparatus including a surface and at least one outlet located at the surface. The cross flow apparatus further includes at least one guide at the surface configured to direct an intersecting flow flowing across the surface and increase a velocity of a cross flow being expelled from the at least one outlet downstream from the at least one outlet.

  19. Water Flow Through Geotextiles Used to Support the Root Zone of Turfgrass on Sports Fields

    E-Print Network [OSTI]

    Rose-Harvey, Keisha M.

    2010-01-14T23:59:59.000Z

    to address the concern that fine particles in the root zone may migrate under the influence of percolating water, clog geotextile pores, and restrict the amount of water drained from a sports field. In test columns, six root zone mixtures with different...

  20. Influence of Atmospheric Pressure and Water Table Fluctuations on Gas Phase Flow and Transport of Volatile Organic Compounds (VOCs) in Unsaturated Zones

    E-Print Network [OSTI]

    You, Kehua

    2013-04-19T23:59:59.000Z

    Understanding the gas phase flow and transport of volatile organic compounds (VOCs) in unsaturated zones is indispensable to develop effective environmental remediation strategies, to create precautions for fresh water protection, and to provide...

  1. Qualified Energy Conservation Bonds (Ohio)

    Broader source: Energy.gov [DOE]

    The Ohio Air Quality Development Authority (OAQDA) administers the Qualified Energy Conservation Bonds (QECB) program in Ohio. QECBs have been used by local governments and public universities to...

  2. Measuring Spatial Variability of Vapor Flux to Characterize Vadose-zone VOC Sources: Flow-cell Experiments

    SciTech Connect (OSTI)

    Mainhagu, Jon; Morrison, C.; Truex, Michael J.; Oostrom, Martinus; Brusseau, Mark

    2014-10-20T23:59:59.000Z

    A method termed vapor-phase tomography has recently been proposed to characterize the distribution of volatile organic contaminant mass in vadose-zone source areas, and to measure associated three-dimensional distributions of local contaminant mass discharge. The method is based on measuring the spatial variability of vapor flux, and thus inherent to its effectiveness is the premise that the magnitudes and temporal variability of vapor concentrations measured at different monitoring points within the interrogated area will be a function of the geospatial positions of the points relative to the source location. A series of flow-cell experiments was conducted to evaluate this premise. A well-defined source zone was created by injection and extraction of a non-reactive gas (SF6). Spatial and temporal concentration distributions obtained from the tests were compared to simulations produced with a mathematical model describing advective and diffusive transport. Tests were conducted to characterize both areal and vertical components of the application. Decreases in concentration over time were observed for monitoring points located on the opposite side of the source zone from the local–extraction point, whereas increases were observed for monitoring points located between the local–extraction point and the source zone. The results illustrate that comparison of temporal concentration profiles obtained at various monitoring points gives a general indication of the source location with respect to the extraction and monitoring points.

  3. MECHANICS AND MODELING OF FLOW, SEDIMENT TRANSPORT AND MORPHOLOGIC CHANGE IN RIVERINE LATERAL SEPARATION ZONES

    E-Print Network [OSTI]

    factors that control the morphology of the reach. INTRODUCTION Lateral separation zones or eddies below channel constrictions store sediment in the form of sand bars in the Grand Canyon (Figure 1). Backwaters for several endangered fish species and subaerially exposed portions of the sand bars provide surfaces

  4. TQP Qualifying Official Training Approaches - Livermore Site...

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

    TQP Qualifying Official Training Approaches - Livermore Site Office TQP Qualifying Official Training Approaches - Livermore Site Office A QO is an individual who has the technical...

  5. The hydraulics of exchange flow between adjacent confined building zones Saleh Nabi*, M.R. Flynn

    E-Print Network [OSTI]

    Flynn, Morris R.

    2012 Keywords: Buoyancy-driven exchange flow Boussinesq flow Natural ventilation Plumes Gravity with an adjacent volume of ambient fluid is a common problem in fluid mechanics with numerous examples in natural for the design of HVAC (heating, ventilation, and air conditioning) systems or for increasing the efficiency

  6. Gliding flow and recrystallization of halite gouge in experimental shear zones 

    E-Print Network [OSTI]

    Knapp, Steven Thomas

    1983-01-01T23:59:59.000Z

    rate. Differential stress versus shear strain diagram that illustrates the effect of variations in thickness of the gouge zone. 18 20 22 23 FIGURE 8: Differential stress versus shear strain diagram shows the similarity in behavior for synthetic... be seen. . . . . . . . . . . . . . . . 34 LIST OF FIGURES (continuedj PAGE FIGURE 14: Photomicrograph of a specimen deformed to where the neoblasts begfn to coalesce, Test 1635, y = 6. 22 37 FIGURE 15 Photomicrographs of the recrystallized mosaic...

  7. Qualified Energy Conservation Bonds (QECBs)

    Broader source: Energy.gov [DOE]

    The ''Energy Improvement and Extension Act of 2008'', enacted in October 2008, authorized the issuance of Qualified Energy Conservation Bonds (QECBs) that may be used by state, local and tribal...

  8. Estimation of unsaturated zone traveltimes for Rainier Mesa and Shoshone Mountain, Nevada Test Site, Nevada, using a source-responsive preferential-flow model

    SciTech Connect (OSTI)

    Brian A. Ebel; John R. Nimmo

    2009-09-11T23:59:59.000Z

    Traveltimes for contaminant transport by water from a point in the unsaturated zone to the saturated zone are a concern at Rainier Mesa and Shoshone Mountain in the Nevada Test Site, Nevada. Where nuclear tests were conducted in the unsaturated zone, contaminants must traverse hundreds of meters of variably saturated rock before they enter the saturated zone in the carbonate rock, where the regional groundwater system has the potential to carry them substantial distances to a location of concern. The unsaturated-zone portion of the contaminant transport path may cause a significant delay, in addition to the time required to travel within the saturated zone, and thus may be important in the overall evaluation of the potential hazard from contamination. Downward contaminant transport through the unsaturated zone occurs through various processes and pathways; this can lead to a broad distribution of contaminant traveltimes, including exceedingly slow and unexpectedly fast extremes. Though the bulk of mobile contaminant arrives between the time-scale end members, the fastest contaminant transport speed, in other words the speed determined by the combination of possible processes and pathways that would bring a measureable quantity of contaminant to the aquifer in the shortest time, carries particular regulatory significance because of its relevance in formulating the most conservative hazard-prevention scenarios. Unsaturated-zone flow is usually modeled as a diffusive process responding to gravity and pressure gradients as mediated by the unsaturated hydraulic properties of the materials traversed. The mathematical formulation of the diffuse-flow concept is known as Richards' equation, which when coupled to a solute transport equation, such as the advection-dispersion equation, provides a framework to simulate contaminant migration in the unsaturated zone. In recent decades awareness has increased that much fluid flow and contaminant transport within the unsaturated zone takes place as preferential flow, faster than would be predicted by the coupled Richards' and advection-dispersion equations with hydraulic properties estimated by traditional means. At present the hydrologic community has not achieved consensus as to whether a modification of Richards' equation, or a fundamentally different formulation, would best quantify preferential flow. Where the fastest contaminant transport speed is what needs to be estimated, there is the possibility of simplification of the evaluation process. One way of doing so is by a two-step process in which the first step is to evaluate whether significant preferential flow and solute transport is possible for the media and conditions of concern. The second step is to carry out (a) a basic Richards' and advection-dispersion equation analysis if it is concluded that preferential flow is not possible or (b) an analysis that considers only the fastest possible preferential-flow processes, if preferential flow is possible. For the preferential-flow situation, a recently published model describable as a Source-Responsive Preferential-Flow (SRPF) model is an easily applied option. This report documents the application of this two-step process to flow through the thick unsaturated zones of Rainier Mesa and Shoshone Mountain in the Nevada Test Site. Application of the SRPF model involves distinguishing between continuous and intermittent water supply to preferential flow paths. At Rainier Mesa and Shoshone Mountain this issue is complicated by the fact that contaminant travel begins at a location deep in the subsurface, where there may be perched water that may or may not act like a continuous supply, depending on such features as the connectedness of fractures and the nature of impeding layers. We have treated this situation by hypothesizing both continuous and intermittent scenarios for contaminant transport to the carbonate aquifer and reporting estimation of the fastest speed for both of these end members.

  9. Multiple-Zone Variable Refrigerant Flow System Modeling and Equipment Performance Mapping

    SciTech Connect (OSTI)

    Shen, Bo [ORNL] [ORNL; Rice, C Keith [ORNL] [ORNL

    2012-01-01T23:59:59.000Z

    We developed a variable refrigerant flow (VRF) vapor compression system model, which has five indoor units, one outdoor unit and one water heater. The VRF system can run simultaneous space conditioning (cooling or heating) and water heating. The indoor units and outdoor unit use fin-&-tube coil heat exchangers, and the water heater uses a tube-in-tube heat exchanger. The fin-&-tube coil heat exchangers are modeled using a segment-by-segment approach and the tube-in-tube water heater is modeled using a phase-by-phase approach. The compressor used is a variable-speed rotary design. We calibrated our model against a manufacturer s product literature. Based on the vapor compression system model, we investigated the methodology for generating VRF equipment performance maps, which can be used for energy simulations in TRNSYS and EnergyPlus, etc. In the study, the major independent variables for mapping are identified and the deviations between the simplified performance map and the actual equipment system simulation are quantified.

  10. Algebra Qualifying Exam August 2010

    E-Print Network [OSTI]

    Passman, Donald S.

    Algebra Qualifying Exam August 2010 Do all 5 problems. 1. Let G be a finite group and let N be a minimal normal subgroup of G. Suppose N = S1 × S2 × · · · × Sr, where each Si is a simple subgroup and where S1 is not abelian. (a) Show that Z(N) = 1, where Z(N) is the center of N, and deduce that each Si

  11. www.VadoseZoneJournal.org Vadose Zone Journal

    E-Print Network [OSTI]

    Vrugt, Jasper A.

    , biofuels, sustainability, and nanotechnology. Since its inception, Vadose Zone Journal has grown tre, multicomponent (reactive) transport modeling, radionuclide transport, multiphase flow, recharge in arid transport, remote sensing of vadose zone properties, hillslope hydrology, gas diffusion, environmental

  12. Qualified Energy Conservation Bonds | Department of Energy

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

    description of qualified energy conservation bonds, including process and mechanics, case studies, utilization trends, barriers, and regulatory and legal issues. Author:...

  13. QUALIFYING EXAMINATION JANUARY 2004 MATH 571 - Prof ...

    E-Print Network [OSTI]

    1910-31-22T23:59:59.000Z

    QUALIFYING EXAMINATION. JANUARY 2004. MATH 571 - Prof. Smith. 1. A space is second countable if it has a countable basis. Let X = R n be the product of ...

  14. QUALIFYING EXAMINATION JANUARY 2001 MATH 571 - Prof ...

    E-Print Network [OSTI]

    1910-10-22T23:59:59.000Z

    QUALIFYING EXAMINATION. JANUARY 2001. MATH 571 - Prof. Smith. I. a) Give the definition of a normal topology. b) Let M be a metric space. Show that the ...

  15. QUALIFYING EXAMINATION JANUARY 2002 MATH 571 - Prof ...

    E-Print Network [OSTI]

    1910-20-40T23:59:59.000Z

    QUALIFYING EXAMINATION. JANUARY 2002. MATH 571 - Prof. Smith. I. Let f : E ? B be a covering of a compact Hausdorff space B. Prove that E is compact if ...

  16. Mixing Cell Model: A One-Dimensional Numerical Model for Assessment of Water Flow and Contaminant Transport in the Unsaturated Zone

    SciTech Connect (OSTI)

    A. S. Rood

    2010-10-01T23:59:59.000Z

    This report describes the Mixing Cell Model code, a one-dimensional model for water flow and solute transport in the unsaturated zone under steady-state or transient flow conditions. The model is based on the principles and assumptions underlying mixing cell model formulations. The unsaturated zone is discretized into a series of independent mixing cells. Each cell may have unique hydrologic, lithologic, and sorptive properties. Ordinary differential equations describe the material (water and solute) balance within each cell. Water flow equations are derived from the continuity equation assuming that unit-gradient conditions exist at all times in each cell. Pressure gradients are considered implicitly through model discretization. Unsaturated hydraulic conductivity and moisture contents are determined by the material-specific moisture characteristic curves. Solute transport processes include explicit treatment of advective processes, first-order chain decay, and linear sorption reactions. Dispersion is addressed through implicit and explicit dispersion. Implicit dispersion is an inherent feature of all mixing cell models and originates from the formulation of the problem in terms of mass balance around fully mixed volume elements. Expressions are provided that relate implicit dispersion to the physical dispersion of the system. Two FORTRAN codes were developed to solve the water flow and solute transport equations: (1) the Mixing-Cell Model for Flow (MCMF) solves transient water flow problems and (2) the Mixing Cell Model for Transport (MCMT) solves the solute transport problem. The transient water flow problem is typically solved first by estimating the water flux through each cell in the model domain as a function of time using the MCMF code. These data are stored in either ASCII or binary files that are later read by the solute transport code (MCMT). Code output includes solute pore water concentrations, water and solute inventories in each cell and at each specified output time, and water and solute fluxes through each cell and specified output time. Computer run times for coupled transient water flow and solute transport were typically several seconds on a 2 GHz Intel Pentium IV desktop computer. The model was benchmarked against analytical solutions and finite-element approximations to the partial differential equations (PDE) describing unsaturated flow and transport. Differences between the maximum solute flux estimated by the mixing-cell model and the PDE models were typically less than two percent.

  17. Qualified Energy Conservation Bond Webinars | Department of Energy

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

    listing of past qualified energy conservation bond webinars and associated files. Author: U.S. Department of Energy Qualified Energy Conservation Webinars Website More Documents &...

  18. Breakthrough in Bioenergy: American Process Sells First RIN-qualified...

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

    Breakthrough in Bioenergy: American Process Sells First RIN-qualified Cellulosic Ethanol Shipment Breakthrough in Bioenergy: American Process Sells First RIN-qualified Cellulosic...

  19. Influences of Flow Transients and Porous Medium Heterogeneity on Colloid-Associated Contaminant Transport in the Vadose Zone

    SciTech Connect (OSTI)

    James Saiers; Joseph Ryan

    2006-07-02T23:59:59.000Z

    Radionuclides, metals, and dense non-aqueous phase liquids have contaminated about six billion cubic meters of soil at Department of Energy (DOE) sites. The subsurface transport of many of these contaminants is facilitated by colloids (i.e., microscopic, waterborne particles). The first step in the transport of contaminants from their sources to off-site surface water and groundwater is migration through the vadose zone. Developing our understanding of the migration of colloids and colloid-associated contaminants through the vadose zone is critical to assessing and controlling the release of contaminants from DOE sites. In this study, we examined the mobilization, transport, and filtration (retention) of mineral colloids and colloidassociated radionuclides within unsaturated porous media. This investigation involved laboratory column experiments designed to identify properties that affect colloid mobilization and retention and pore-scale visualization experiments designed to elucidate mechanisms that govern these colloid-mass transfer processes. The experiments on colloid mobilization and retention were supplemented with experiments on radionuclide transport through porous media and on radionuclide adsorption to mineral colloids. Observations from all of these experiments – the column and visualization experiments with colloids and the experiments with radionuclides – were used to guide the development of mathematical models appropriate for describing colloids and colloid-facilitated radionuclide transport through the vadose zone.

  20. Influences of Flow Transients and Porous Medium Heterogeneity on Colloid-Associated Contaminant Transport in the Vadose Zone

    SciTech Connect (OSTI)

    James Saiers

    2006-06-28T23:59:59.000Z

    Radionuclides, metals, and dense non-aqueous phase liquids have contaminated about six billion cubic meters of soil at Department of Energy (DOE) sites. The subsurface transport of many of these contaminants is facilitated by colloids (i.e., microscopic, waterborne particles). The first step in the transport of contaminants from their sources to off-site surface water and groundwater is migration through the vadose zone. Developing our understanding of the migration of colloids and colloid-associated contaminants through the vadose zone is critical to assessing and controlling the release of contaminants from DOE sites. In this study, we examined the mobilization, transport, and filtration (retention) of mineral colloids and colloid-associated radionuclides within unsaturated porous media. This investigation involved laboratory column experiments designed to identify properties that affect colloid mobilization and retention and pore-scale visualization experiments designed to elucidate mechanisms that govern these colloid-mass transfer processes. The experiments on colloid mobilization and retention were supplemented with experiments on radionuclide transport through porous media and on radionuclide adsorption to mineral colloids. Observations from all of these experiments – the column and visualization experiments with colloids and the experiments with radionuclides – were used to guide the development of mathematical models appropriate for describing colloids and colloid-facilitated radionuclide transport through the vadose zone.

  1. Negotiating Rates and Contracts for Qualifying Facilities

    E-Print Network [OSTI]

    Collier, S. E.

    The implementation of a cogeneration project or other qualifying facility (QF) requires the development of contractual relationships with one or more electric utilities. The relationships may involve the application of existing rates and contracts...

  2. Qualified Target Industry Tax Refund (Florida)

    Broader source: Energy.gov [DOE]

    The Qualified Target Industry Tax Refund incentive is available for companies that create high wage jobs in targeted high value-added industries. The incentive refunds up to $3,000 per new full...

  3. Qualifying Advanced Energy Manufacturing Investment Tax Credit

    Broader source: Energy.gov [DOE]

    2013 Update: Phase II of the Qualifying Advanced Energy Project is open. Required concept papers are due to the U.S. Department of Energy (DOE) by April 9, 2013. The U.S. DOE will review concept...

  4. Variation of Fish Habitat and Extent of the Low-Salinity Zone with Freshwater Flow in the San Francisco Estuary

    E-Print Network [OSTI]

    Kimmerer, Wim J.; MacWilliams, Michael L.; Gross, Edward S.

    2013-01-01T23:59:59.000Z

    prey, and fish early-life histories to striped bass Moroneby striped bass larvae. Trans Am Fish Soc 117(1):72–77.fish, freshwater flow, resource selec- tion function, delta smelt, longfin smelt, striped bass,

  5. Qualified Energy Conservation Bond State-by-State Summary Tables

    Broader source: Energy.gov [DOE]

    Provides a list of qualified energy conservation bond state summary tables. Author: Energy Programs Consortium

  6. Graduate Study in Mathematics: Qualifying Exams & Exam Archive

    E-Print Network [OSTI]

    Academic Programs Undergraduate Graduate Applied Math Actuarial. > Home > Academic Programs > Graduate. Qualifying Exams. The Department of ...

  7. Simulation of fluid flow mechanisms in high permeability zones (Super-K) in a giant naturally fractured carbonate reservoir

    E-Print Network [OSTI]

    Abu-Hassoun, Amer H.

    2009-05-15T23:59:59.000Z

    and fractures were treated as two systems. Reservoir management practices and decisions should be very carefully reviewed and executed in this dual continuum reservoir based on the results of this work. Studying this dual media flow behavior is vital for better...

  8. A chaotic-dynamical conceptual model to describe fluid flow and contaminant transport in a fractured vadose zone. 1997 progress report and presentations at the annual meeting, Ernest Orlando Lawrence Berkeley National Laboratory, December 3--4, 1997

    SciTech Connect (OSTI)

    Faybishenko, B.; Doughty, C.; Geller, J. [and others

    1998-07-01T23:59:59.000Z

    Understanding subsurface flow and transport processes is critical for effective assessment, decision-making, and remediation activities for contaminated sites. However, for fluid flow and contaminant transport through fractured vadose zones, traditional hydrogeological approaches are often found to be inadequate. In this project, the authors examine flow and transport through a fractured vadose zone as a deterministic chaotic dynamical process, and develop a model of it in these terms. Initially, the authors examine separately the geometric model of fractured rock and the flow dynamics model needed to describe chaotic behavior. Ultimately they will put the geometry and flow dynamics together to develop a chaotic-dynamical model of flow and transport in a fractured vadose zone. They investigate water flow and contaminant transport on several scales, ranging from small-scale laboratory experiments in fracture replicas and fractured cores, to field experiments conducted in a single exposed fracture at a basalt outcrop, and finally to a ponded infiltration test using a pond of 7 by 8 m. In the field experiments, they measure the time-variation of water flux, moisture content, and hydraulic head at various locations, as well as the total inflow rate to the subsurface. Such variations reflect the changes in the geometry and physics of water flow that display chaotic behavior, which they try to reconstruct using the data obtained. In the analysis of experimental data, a chaotic model can be used to predict the long-term bounds on fluid flow and transport behavior, known as the attractor of the system, and to examine the limits of short-term predictability within these bounds. This approach is especially well suited to the need for short-term predictions to support remediation decisions and long-term bounding studies. View-graphs from ten presentations made at the annual meeting held December 3--4, 1997 are included in an appendix to this report.

  9. Radiant zone heated particulate filter

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI

    2011-12-27T23:59:59.000Z

    A system includes a particulate matter (PM) filter including an upstream end for receiving exhaust gas and a downstream end. A radiant zoned heater includes N zones, where N is an integer greater than one, wherein each of the N zones includes M sub-zones, where M is an integer greater than or equal to one. A control module selectively activates at least a selected one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones, restricts exhaust gas flow in a portion of the PM filter that corresponds to the selected one of the N zones, and deactivates non-selected ones of the N zones.

  10. MA Ph.D. Qualifying Exam Directions

    E-Print Network [OSTI]

    Liblit, Ben

    MA Ph.D. Qualifying Exam Fall 2010 Directions: Use careful reasoning to develop the answers to each numerical answers. You may use the LZGS text for reference for this exam. 1. Explain in detail why the mean with the system. Each query type i also generates a small amount of further processing time, with average Si

  11. DOE Qualified List of ESCO Application Cover Letter

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

    April 1, 2015 Thank you for your firm's interest in the Department of Energy's (DOE's) Qualified List of Energy Service Companies. Firms on the qualified list may perform energy...

  12. Tax Deduction Qualified Software Tas version 9.3.1

    Broader source: Energy.gov [DOE]

    Information about the Tas version 9.3.1 qualified computer software and federal tax incentive requirements for commercial buildings.

  13. July 18, 2012 Using Qualified Energy Conservation Bonds for Public

    E-Print Network [OSTI]

    July 18, 2012 Using Qualified Energy Conservation Bonds for Public Building Upgrades: Reducing Energy Bills in the City of Philadelphia Qualified Energy Conservation Bonds (QECBs) are federally Energy Conservation Bond (QECB) is a bond that enables qualified state, tribal and local government

  14. arid vadose zone: Topics by E-print Network

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

    XI, Universit de 13 Uniform and Preferential Flow Mechanisms in the Vadose Zone Environmental Management and Restoration Websites Summary: . Both types of flow occur...

  15. Vadose zone water fluxmeter

    DOE Patents [OSTI]

    Faybishenko, Boris A.

    2005-10-25T23:59:59.000Z

    A Vadose Zone Water Fluxmeter (WFM) or Direct Measurement WFM provides direct measurement of unsaturated water flow in the vadose zone. The fluxmeter is a cylindrical device that fits in a borehole or can be installed near the surface, or in pits, or in pile structures. The fluxmeter is primarily a combination of tensiometers and a porous element or plate in a water cell that is used for water injection or extraction under field conditions. The same water pressure measured outside and inside of the soil sheltered by the lower cylinder of the fluxmeter indicates that the water flux through the lower cylinder is similar to the water flux in the surrounding soil. The fluxmeter provides direct measurement of the water flow rate in the unsaturated soils and then determines the water flux, i.e. the water flow rate per unit area.

  16. Qualified Energy Conservation Bonds | Department of Energy

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

    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 742EnergyOn April 23, 2014, an OHASeptember 2010In addition to analysis3 News7:ThomasA Qualified

  17. Qualified Energy Conservation Bond (QECB) Update: New

    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'tOrigin of ContaminationHubs+18, 2012 Qualified Energy Conservation Bond (QECB) Update: New

  18. Making it Easier to Complete Clean Energy Projects with Qualified...

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

    are dedicated to trying to make these Qualified Energy Conservation Bonds available to finance clean energy and energy efficiency projects at local levels across the country, but...

  19. Using Qualified Energy Conservation Bonds for Public Building...

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

    Summarizes how the City of Philadelphia leveraged 6.25 million in qualified energy conservation bonds to upgrade the energy efficiency of city buildings. Author: Lawrence Berkeley...

  20. Qualified Energy Conservation Bonds (QECBs) APPENDIX A: QECB...

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

    Qualified energy conservation bonds appendices. Author: U. S. Department of Energy Appendix A: QECB Counsel, Underwriters, Banks and Trustees More Documents & Publications...

  1. Qualified Energy Conservation Bonds (QECBs) & New Clean Renewable...

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

    presentation overview of qualified energy conservation bond and new clean renewable energy bonds, including characteristics, mechanics, allocated volume, and other information....

  2. Qualified Energy Conservation Bonds (QECBs?) & New Clean Renewable...

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

    Qualified Energy Conservation Bonds ("QECBs") & New Clean Renewable Energy Bonds ("New CREBs") Slide 1 DISCLAIMER: The information in this presentation is for informational...

  3. Qualified Energy Conservation Bond (QECB) Update: New Guidance...

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

    Lawrence Berkeley National Laboratory Qualified Energy Conservation Bond (QECB) Update: New Guidance from the U.S. Department of Treasury and the Internal Revenue Service...

  4. July 18, 2012 Qualified Energy Conservation Bond (QECB) Update: New

    E-Print Network [OSTI]

    July 18, 2012 Qualified Energy Conservation Bond (QECB) Update: New Guidance from the U.S. Department of Treasury and the Internal Revenue Service Qualified Energy Conservation Bonds (QECBs a range of energy conservation projects at very attractive borrowing rates over long contract terms

  5. Guidance on the Elements Necessary to Qualify as an Energy Conservatio...

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

    the Elements Necessary to Qualify as an Energy Conservation Measure Under an ESPC Guidance on the Elements Necessary to Qualify as an Energy Conservation Measure Under an ESPC...

  6. QUALIFYING EXAMINATION AUGUST 2001 MATH 571 - PROF. J ...

    E-Print Network [OSTI]

    1910-10-82T23:59:59.000Z

    QUALIFYING EXAMINATION. AUGUST 2001. MATH 571 - PROF. J. SMITH. 1.(10 pts) Let X be a compact space and let. A1 ? A2 ?···? Ak ··· be a descending ...

  7. The minimum information for a qualified BioBrick

    E-Print Network [OSTI]

    Zhou, Mubing

    2012-10-11T23:59:59.000Z

    Since the information of many existing BioBricks is incomplete, thus the usage of the BioBricks will be affected. It is necessary to standardize the minimum information required for a qualified BioBrick. Furthermore this ...

  8. DOE Qualified List of ESCO Application Cover Letter

    Broader source: Energy.gov [DOE]

    Document displays the U.S. Department of Energy's (DOE) application cover letter, which thanks a firm for its interest in the DOE Qualified List of Energy Service Companies (ESCOs) and describes the application documents and application review process. Firms on the DOE Qualified List may perform energy savings performance contracting (ESPC) in accordance with the Energy Policy Act of 1992 and 10 CFR 436. Also see the Standard Form 129 and Supplemental Questionnaire.

  9. Refraction of shear zones in granular materials

    E-Print Network [OSTI]

    Tamas Unger

    2007-01-08T23:59:59.000Z

    We study strain localization in slow shear flow focusing on layered granular materials. A heretofore unknown effect is presented here. We show that shear zones are refracted at material interfaces in analogy with refraction of light beams in optics. This phenomenon can be obtained as a consequence of a recent variational model of shear zones. The predictions of the model are tested and confirmed by 3D discrete element simulations. We found that shear zones follow Snell's law of light refraction.

  10. 2001 TRAFFIC ZONE BOUNDARIES Zone Numbers

    E-Print Network [OSTI]

    Toronto, University of

    2001 TRAFFIC ZONE BOUNDARIES Zone Numbers & Detailed Definitions #12;2001 TRAFFIC ZONE BOUNDARIES of Toronto Joint Program in Transportation January 2003 #12;PREFACE This report presents the 2001 traffic zone numbers by local municipalities in the 2001 TTS survey area. The second part presents detailed

  11. Oral Qualifying Exam Syllabus Nicholas Weininger

    E-Print Network [OSTI]

    codes, minimum-cost span- ning trees. Planarity: Euler's formula, Kuratowski's theorem. Coloring and spanning trees: basic properties, Menger's theorem, Max- Flow-Min-Cut theorem, Matrix-Tree Theorem, Prüfer probabilities, law of total probability, Chebyshev's inequality, Cherno#27; bound, coupling and stochastic

  12. Structure of processes in flow reactor and closed reactor: Flow reactor

    E-Print Network [OSTI]

    Greifswald, Ernst-Moritz-Arndt-Universität

    Structure of processes in flow reactor and closed reactor: Flow reactor Closed reactor Active Zone -- chemical quasi- equilibria, similarity principles and macroscopic kinetics", in: Lectures on Plasma Physics

  13. Enterprise Zone Incentives (Florida)

    Broader source: Energy.gov [DOE]

    Enterprise Zone Incentives encourage business growth within certain geographic areas targeted for economic revitalization. Businesses which create jobs within a designated zone are eligible for...

  14. Qualifying geospatial workflow models for adaptive controlled validity and accuracy

    E-Print Network [OSTI]

    Stock, Kristin

    Qualifying geospatial workflow models for adaptive controlled validity and accuracy Didier Leibovici, Gobe Hobona, Kristin Stock and Mike Jackson Centre for Geospatial Sciences, University.leibovici@nottingham.ac.uk Abstract--Sharing geospatial data and geoprocessing models within a system like GEOSS (Global Earth

  15. Advanced Analysis Qualifying Examination Department of Mathematics and Statistics

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    be a continuous increasing invertible function. Let µF and µF be the Lebesgue-Stieljes measures associated to FNAME: Advanced Analysis Qualifying Examination Department of Mathematics and Statistics University function or characteristic function of A. 2. If a measure is not specified, use Lebesgue measure on R

  16. FREQUENTLY ASKED QUESTIONS ABOUT THE TTP PHD QUALIFYING EXAMINATION (QE)

    E-Print Network [OSTI]

    California at Davis, University of

    FREQUENTLY ASKED QUESTIONS ABOUT THE TTP PHD QUALIFYING EXAMINATION (QE) Pat Mokhtarian, TTP Chair this document helpful. What is the QE and what is its purpose? The QE is the last big hurdle to finishing the PhD dissertation research, and by implication to eventually receive a PhD. We interpret "preparation" to mean two

  17. Using Qualified Energy Conservation Bonds (QECBs) to Fund a Residential Energy Efficiency Loan Program: Case Study on Saint Louis County, MO

    E-Print Network [OSTI]

    Zimring, Mark

    2012-01-01T23:59:59.000Z

    2011 Using Qualified Energy Conservation Bonds (QECBs) toCounty, MO Qualified Energy Conservation Bonds (QECBs) arerange of qualified energy conservation projects. QECBs offer

  18. Tax Deduction Qualified Software DesignBuilder version 4.2.0.054

    Broader source: Energy.gov [DOE]

    Information about the DesignBuilder version 4.2.0.054 qualified computer software (www.buildings.energy.gov/qualified_software.html), which calculates energy and power cost savings that meet federal tax incentive requirements for commercial buildings.

  19. Not Excavated (still on site) As All data Zone 1 Zone 2 Zone 3 Zone 4

    E-Print Network [OSTI]

    .12 11.68 10.29 AL: 50 xrf_allzones_20060810 Page 1 of 174notx summary #12;Mo All data Zone 1 Zone 2 Zone.35 2.36 2.37 U95: 57.95 62.41 60.56 51.63 70.50 U99: 58.98 64.27 62.34 52.75 74.38 AL: 550 xrf99: 12.48 AL: xrf_allzones_20060810 Page 3 of 174x summary #12;Mo All data Zone 1 Zone 2 Zone 3 Zone

  20. Request for Proposals for Final Energy Service Company Selection from Pre-Qualified Pool Documents

    Broader source: Energy.gov [DOE]

    Information and documents about the Request for Proposals to select an Energy Service Company from a pre-qualified pool.

  1. Qualified Specialists in Industrial Assessment Tools | 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'tOrigin of ContaminationHubs+18, 2012 Qualified Energy Conservation Bond (QECB)

  2. NUMERICAL ANALYSIS OF VAPOR BUBBLE GROWTH AND WALL HEAT TRANSFER DURING FLOW BOILING OF WATER IN A MICROCHANNEL

    E-Print Network [OSTI]

    Kandlikar, Satish

    . (2004) developed three- zone flow boiling heat transfer model to describe evaporation of elongated

  3. Alternative Energy Zone (Ohio)

    Broader source: Energy.gov [DOE]

    Ohio's Alternative Energy Zones are made possible through Ohio's Senate Bill 232, which reduced taxes on alternative energy projects. The Alternative Energy Zones are designated on a county-by...

  4. The PhD Qualifying Exam All PhD seeking students are required to attempt the PhD Written Qualifying Exam after their

    E-Print Network [OSTI]

    New Mexico, University of

    The PhD Qualifying Exam All PhD seeking students are required to attempt the PhD Written Qualifying before the beginning of the fall semester. The "Common Exam" that all PhD students must take consists of in August of each year. The "Concentration Exam" tests the PhD student in the specific 2 courses of his

  5. DOE Qualified List of Energy Service Companies | 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't Your Destiny: Theof"WaveInteractions and Policy (2009)|PublishesDOE Qualified List of

  6. DOE Qualifying Official Training Approaches | 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't Your Destiny: Theof"WaveInteractions and Policy (2009)|PublishesDOE Qualified List

  7. Qualified Software for Calculating Commercial Building Tax Deductions |

    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'tOrigin of ContaminationHubs+18, 2012 Qualified Energy Conservation Bond (QECB) Update:Department

  8. Two-zone countercurrent smelter system and process

    DOE Patents [OSTI]

    Cox, James H. (Toronto, CA); Fruehan, Richard J. (Murrysville, PA); Elliott, deceased, John F. (late of Winchester, MA)

    1995-01-01T23:59:59.000Z

    A process for continuously smelting iron ore by use of coal to yield molten iron or semi-steel is disclosed. The process comprises the steps of establishing a melt covered by slag; inducing the slag and the molten iron to flow countercurrently to one another, toward opposite ends of the smelter; maintaining iron oxide-reducing conditions in that zone of the smelter towards which the slag flows; maintaining carbon-oxidizing conditions in that zone of the smelter towards which the molten iron flows; continuously or semicontinuously tapping the slag from the reducing zone end of the smelter; continuously or semicontinuously tapping the molten iron from the oxidizing zone end of the smelter; and adding to both zones iron ore, coal, oxygen, and flux at addition rates sufficient to keep the molten iron in the reducing zone substantially saturated with carbon, maintain in the slag being tapped an FeO content of about 5 weight percent or less, and maintain in the molten iron being tapped a carbon content of about 0.5 to 5 weight percent. A slag dam preferably is included in the smelter, to impede the backflow of the slag from the reducing zone to the oxidizing zone. A metal bath dam with one or more flow-through portals also is preferably used, submerged below the slag dam, to impede the backflow of the hot metal.

  9. Two-zone countercurrent smelter system and process

    DOE Patents [OSTI]

    Cox, J.H.; Fruehan, R.J.; Elliott, J.F.

    1995-01-03T23:59:59.000Z

    A process for continuously smelting iron ore by use of coal to yield molten iron or semi-steel is disclosed. The process comprises the steps of establishing a melt covered by slag; inducing the slag and the molten iron to flow countercurrently to one another, toward opposite ends of the smelter; maintaining iron oxide-reducing conditions in that zone of the smelter towards which the slag flows; maintaining carbon-oxidizing conditions in that zone of the smelter towards which the molten iron flows; continuously or semicontinuously tapping the slag from the reducing zone end of the smelter; continuously or semicontinuously tapping the molten iron from the oxidizing zone end of the smelter; and adding to both zones iron ore, coal, oxygen, and flux at addition rates sufficient to keep the molten iron in the reducing zone substantially saturated with carbon, maintain in the slag being tapped an FeO content of about 5 weight percent or less, and maintain in the molten iron being tapped a carbon content of about 0.5 to 5 weight percent. A slag dam preferably is included in the smelter, to impede the backflow of the slag from the reducing zone to the oxidizing zone. A metal bath dam with one or more flow-through portals also is preferably used, submerged below the slag dam, to impede the backflow of the hot metal. 8 figures.

  10. Statistically qualified neuro-analytic failure detection method and system

    DOE Patents [OSTI]

    Vilim, Richard B. (Aurora, IL); Garcia, Humberto E. (Idaho Falls, ID); Chen, Frederick W. (Naperville, IL)

    2002-03-02T23:59:59.000Z

    An apparatus and method for monitoring a process involve development and application of a statistically qualified neuro-analytic (SQNA) model to accurately and reliably identify process change. The development of the SQNA model is accomplished in two stages: deterministic model adaption and stochastic model modification of the deterministic model adaptation. Deterministic model adaption involves formulating an analytic model of the process representing known process characteristics, augmenting the analytic model with a neural network that captures unknown process characteristics, and training the resulting neuro-analytic model by adjusting the neural network weights according to a unique scaled equation error minimization technique. Stochastic model modification involves qualifying any remaining uncertainty in the trained neuro-analytic model by formulating a likelihood function, given an error propagation equation, for computing the probability that the neuro-analytic model generates measured process output. Preferably, the developed SQNA model is validated using known sequential probability ratio tests and applied to the process as an on-line monitoring system. Illustrative of the method and apparatus, the method is applied to a peristaltic pump system.

  11. Tax Deduction Qualified Software Tas version 9.2.1.5

    Broader source: Energy.gov [DOE]

    information about the Tas version 9.2.1.5 qualified computer software and federal tax incentive requirements for commercial buildings

  12. Tax Deduction Qualified Software Tas version 9.2.1.7

    Broader source: Energy.gov [DOE]

    Information about the Tas version 9.2.1.7 qualified computer software and federal tax incentive requirements for commercial buildings.

  13. Tax Deduction Qualified Software Tas version 9.2.1.4

    Broader source: Energy.gov [DOE]

    information about the Tas version 9.2.1.4 qualified computer software and federal tax incentive requirements for commercial buildings

  14. Department of Energys Qualified List of Energy Service Companies...

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

    DEPARTMENT OF ENERGY'S QUALIFIED LIST OF ENERGY SERVICE COMPANIES June 2015 1 Abengoa Solar, Inc. Amparo Pazos Division Director 1250 Simms Street Unit 101 Lakewood, CO 80401 P:...

  15. Making it Easier to Complete Clean Energy Projects with Qualified Energy Conservation Bonds (QECBs)

    Broader source: Energy.gov [DOE]

    This presentation, given through the DOE's Technical Assitance Program (TAP), provides information on How to to Complete Clean Energy Projects with Qualified Energy Conservation Bonds (QECBs)

  16. Renewable Energy Renaissance Zones

    Broader source: Energy.gov [DOE]

    For the purposes of renaissance zone designation, “renewable energy facility” means a facility that creates energy, fuels, or chemicals directly from the wind, the sun, trees, grasses, biosolids,...

  17. Geothermal: Educational Zone

    Office of Scientific and Technical Information (OSTI)

    Educational Zone Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us HomeBasic Search About Publications Advanced Search New Hot Docs News Related Links...

  18. Tax Deduction Qualified Software- EnerSim version 9.02

    Broader source: Energy.gov [DOE]

    On this page you'll find information about the EnerSim version 9.02 qualified computer software (buildings.energy.gov/qualified_software.html), which calculates energy and power cost savings that meet federal tax incentive requirements for commercial buildings.

  19. Tax Deduction Qualified Software DesignBuilder version 3.0.0.105

    Broader source: Energy.gov [DOE]

    On this page you'll find information about the DesignBuilder version 3.0.0.105 qualified computer software (www.buildings.energy.gov/qualified_software.html), which calculates energy and power cost savings that meet federal tax incentive requirements for commercial buildings.

  20. Questions for PhD Qualifying Exam in Algorithms Spring 2014

    E-Print Network [OSTI]

    Madden, Patrick H.

    1 Questions for PhD Qualifying Exam in Algorithms Spring 2014 DIRECTIONS: Please make sure to write with PhD qualifying exam students and the professor who will be administering the exam. The professor will meet with only a single student at a time, and each student i can only meet from start time si to end

  1. Queen Anne's County- Solar Zoning

    Broader source: Energy.gov [DOE]

    Queen Anne's County zoning code allows for ground mounted solar arrays in areas zoned as "open space," "agricultural," and "countryside" districts.

  2. Opportunity and Enterprise Zones (Oklahoma)

    Broader source: Energy.gov [DOE]

    Opportunity and Enterprise Zones provide enhanced financial incentives for businesses located in such zones aimed at stimulating economic expansion in rural and disadvantaged communities...

  3. Mandatory Disclosure Requirements and Rating Agency Catering: A Study of the Rule Changes for Qualified Special Purpose Entities

    E-Print Network [OSTI]

    van den Berg, Jur

    for Qualified Special Purpose Entities Kevin Koharki The Pennsylvania State University kjk199@psu.edu December

  4. Streamside Management Zones (Montana)

    Broader source: Energy.gov [DOE]

    This chapter sets streamside management zones as encompassing a strip at least 50 feet wide on each side of a stream, lake, or other body of water, measured from the ordinary high-water mark, and...

  5. ON HYDRODYNAMIC MOTIONS IN DEAD ZONES

    SciTech Connect (OSTI)

    Oishi, Jeffrey S. [Department of Astronomy, 601 Campbell Hall, University of California at Berkeley, Berkeley, CA 94720-3411 (United States); Mac Low, Mordecai-Mark, E-mail: jsoishi@astro.berkeley.ed, E-mail: mordecai@amnh.or [Department of Astrophysics, American Museum of Natural History, 79th Street at Central Park West, New York, NY 10024-5192 (United States)

    2009-10-20T23:59:59.000Z

    We investigate fluid motions near the midplane of vertically stratified accretion disks with highly resistive midplanes. In such disks, the magnetorotational instability drives turbulence in thin layers surrounding a resistive, stable dead zone. The turbulent layers in turn drive motions in the dead zone. We examine the properties of these motions using three-dimensional, stratified, local, shearing-box, non-ideal, magnetohydrodynamical simulations. Although the turbulence in the active zones provides a source of vorticity to the midplane, no evidence for coherent vortices is found in our simulations. It appears that this is because of strong vertical oscillations in the dead zone. By analyzing time series of azimuthally averaged flow quantities, we identify an axisymmetric wave mode particular to models with dead zones. This mode is reduced in amplitude, but not suppressed entirely, by changing the equation of state from isothermal to ideal. These waves are too low frequency to affect sedimentation of dust to the midplane, but may have significance for the gravitational stability of the resulting midplane dust layers.

  6. Evolution of shear zones in granular materials

    E-Print Network [OSTI]

    Balazs Szabo; Janos Torok; Ellak Somfai; Sandra Wegner; Ralf Stannarius; Axel Bose; Georg Rose; Frank Angenstein; Tamas Borzsonyi

    2014-08-07T23:59:59.000Z

    The evolution of wide shear zones (or shear bands) was investigated experimentally and numerically for quasistatic dry granular flows in split bottom shear cells. We compare the behavior of materials consisting of beads, irregular grains (e.g. sand) and elongated particles. Shearing an initially random sample, the zone width was found to significantly decrease in the first stage of the process. The characteristic shear strain associated with this decrease is about unity and it is systematically increasing with shape anisotropy, i.e. when the grain shape changes from spherical to irregular (e.g. sand) and becomes elongated (pegs). The strongly decreasing tendency of the zone width is followed by a slight increase which is more pronounced for rod like particles than for grains with smaller shape anisotropy (beads or irregular particles). The evolution of the zone width is connected to shear induced density change and for nonspherical particles it also involves grain reorientation effects. The final zone width is significantly smaller for irregular grains than for spherical beads.

  7. Space qualified nanosatellite electronics platform for photon pair experiments

    E-Print Network [OSTI]

    Cheng, Cliff; Tan, Yue Chuan; Ling, Alexander

    2015-01-01T23:59:59.000Z

    We report the design and implementation of a complete electronics platform for conducting a quantum optics experiment that will be operated on board a 1U CubeSat (a 10 x 10 x 10 cm satellite). The quantum optics experiment is designed to produce polarization-entangled photon pairs using non-linear optical crystals and requires opto-electronic components such as a pump laser, single photon detectors and liquid crystal based polarization rotators in addition to passive optical elements. The platform provides mechanical support for the optical assembly. It also communicates autonomously with the host satellite to provide experiment data for transmission to a ground station. A limited number of commands can be transmitted from ground to the platform enabling it to switch experimental modes. This platform requires less than 1.5W for all operations, and is space qualified. The implementation of this electronics platform is a major step on the road to operating quantum communication experiments using nanosatellites.

  8. Space qualified nanosatellite electronics platform for photon pair experiments

    E-Print Network [OSTI]

    Cliff Cheng; Rakhitha Chandrasekara; Yue Chuan Tan; Alexander Ling

    2015-05-25T23:59:59.000Z

    We report the design and implementation of a complete electronics platform for conducting a quantum optics experiment that will be operated on board a 1U CubeSat (a 10 x 10 x 10 cm satellite). The quantum optics experiment is designed to produce polarization-entangled photon pairs using non-linear optical crystals and requires opto-electronic components such as a pump laser, single photon detectors and liquid crystal based polarization rotators in addition to passive optical elements. The platform provides mechanical support for the optical assembly. It also communicates autonomously with the host satellite to provide experiment data for transmission to a ground station. A limited number of commands can be transmitted from ground to the platform enabling it to switch experimental modes. This platform requires less than 1.5W for all operations, and is space qualified. The implementation of this electronics platform is a major step on the road to operating quantum communication experiments using nanosatellites.

  9. Development of Hydrologic Characterization Technology of Fault Zones

    SciTech Connect (OSTI)

    Karasaki, Kenzi; Onishi, Tiemi; Wu, Yu-Shu

    2008-03-31T23:59:59.000Z

    Through an extensive literature survey we find that there is very limited amount of work on fault zone hydrology, particularly in the field using borehole testing. The common elements of a fault include a core, and damage zones. The core usually acts as a barrier to the flow across it, whereas the damage zone controls the flow either parallel to the strike or dip of a fault. In most of cases the damage zone isthe one that is controlling the flow in the fault zone and the surroundings. The permeability of damage zone is in the range of two to three orders of magnitude higher than the protolith. The fault core can have permeability up to seven orders of magnitude lower than the damage zone. The fault types (normal, reverse, and strike-slip) by themselves do not appear to be a clear classifier of the hydrology of fault zones. However, there still remains a possibility that other additional geologic attributes and scaling relationships can be used to predict or bracket the range of hydrologic behavior of fault zones. AMT (Audio frequency Magneto Telluric) and seismic reflection techniques are often used to locate faults. Geochemical signatures and temperature distributions are often used to identify flow domains and/or directions. ALSM (Airborne Laser Swath Mapping) or LIDAR (Light Detection and Ranging) method may prove to be a powerful tool for identifying lineaments in place of the traditional photogrammetry. Nonetheless not much work has been done to characterize the hydrologic properties of faults by directly testing them using pump tests. There are some uncertainties involved in analyzing pressure transients of pump tests: both low permeability and high permeability faults exhibit similar pressure responses. A physically based conceptual and numerical model is presented for simulating fluid and heat flow and solute transport through fractured fault zones using a multiple-continuum medium approach. Data from the Horonobe URL site are analyzed to demonstrate the proposed approach and to examine the flow direction and magnitude on both sides of a suspected fault. We describe a strategy for effective characterization of fault zone hydrology. We recommend conducting a long term pump test followed by a long term buildup test. We do not recommend isolating the borehole into too many intervals. We do recommend ensuring durability and redundancy for long term monitoring.

  10. Tax Deduction Qualified Software- Green Building Studio Web Service version 3.4

    Broader source: Energy.gov [DOE]

    Information about the Green Building Studio Web Service version 3.4 qualified computer software, which calculates energy and power cost savings that meet federal tax incentive requirements for commercial buildings.

  11. Tax Deduction Qualified Software DesignBuilder version 3.0.0...

    Office of Environmental Management (EM)

    this page you'll find information about the DesignBuilder version 3.0.0.105 qualified computer software, which calculates energy and power cost savings that meet federal tax...

  12. Building Technologies Program: Tax Deduction Qualified Software- DOE-2.2 version 47d

    Broader source: Energy.gov [DOE]

    On this page you'll find information about the DOE-2.2 version 47d qualified computer software, which calculates energy and power cost savings that meet federal tax incentive requirements for commercial buildings.

  13. Tax Deduction Qualified Software DesignBuilder version 3.0.0.097

    Broader source: Energy.gov [DOE]

    On this page you'll find information about the DesignBuilder version 3.0.0.097 qualified computer software, which calculates energy and power cost savings that meet federal tax incentive requirements for commercial buildings.

  14. Qualified Energy Property Tax Exemption for Projects over 250 kW (Payment in Lieu)

    Broader source: Energy.gov [DOE]

    Ohio's Renewable and Advanced Energy Project Property Tax Exemption, enacted with the passage of Ohio S.B. 232 in the summer of 2010, exempts qualified energy projects in Ohio from public utility...

  15. Qualified Energy Property Tax Exemption for Projects 250 kW or Less

    Broader source: Energy.gov [DOE]

    Ohio's Renewable and Advanced Energy Project Property Tax Exemption, enacted with the passage of Ohio S.B. 232 in the summer of 2010, exempts qualified energy projects in Ohio from public utility...

  16. Tax Deduction Qualified Software - EnergyPlus version 3.1.0.027...

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

    On this page you'll find information about the EnergyPlus version 3.1.0.027 qualified computer software which calculates energy and power cost savings that meet federal tax...

  17. Tax Deduction Qualified Software - EnergyPlus version 3.0.0.028...

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

    On this page you'll find information about the EnergyPlus version 3.0.0.028 qualified computer software which calculates energy and power cost savings that meet federal tax...

  18. Tax Deduction Qualified Software: EnergyPlus version 5.0.0.031...

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

    Tax Deduction Qualified Software: EnergyPlus version 5.0.0.031 Provides required documentation that EnergyPlus version 5.0.0.031 meets Internal Revenue Code 179D, Notice...

  19. Tax Deduction Qualified Software: EnergyPlus version 6.0.0.023...

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

    Tax Deduction Qualified Software: EnergyPlus version 6.0.0.023 Provides required documentation that EnergyPlus version 6.0.0.023 meets Internal Revenue Code 179D, Notice...

  20. SATURATED ZONE IN-SITU TESTING

    SciTech Connect (OSTI)

    P.W. REIMUS

    2004-11-08T23:59:59.000Z

    The purpose of this scientific analysis is to document the results and interpretations of field experiments that test and validate conceptual flow and radionuclide transport models in the saturated zone (SZ) near Yucca Mountain, Nevada. The test interpretations provide estimates of flow and transport parameters used in the development of parameter distributions for total system performance assessment (TSPA) calculations. These parameter distributions are documented in ''Site-Scale Saturated Zone Flow Model (BSC 2004 [DIRS 170037]), Site-Scale Saturated Zone Transport'' (BSC 2004 [DIRS 170036]), Saturated Zone Colloid Transport (BSC 2004 [DIRS 170006]), and ''Saturated Zone Flow and Transport Model Abstraction'' (BSC 2004 [DIRS 170042]). Specifically, this scientific analysis contributes the following to the assessment of the capability of the SZ to serve as part of a natural barrier for waste isolation for the Yucca Mountain repository system: (1) The bases for selection of conceptual flow and transport models in the saturated volcanics and the saturated alluvium located near Yucca Mountain. (2) Results and interpretations of hydraulic and tracer tests conducted in saturated fractured volcanics at the C-wells complex near Yucca Mountain. The test interpretations include estimates of hydraulic conductivities, anisotropy in hydraulic conductivity, storativities, total porosities, effective porosities, longitudinal dispersivities, matrix diffusion mass transfer coefficients, matrix diffusion coefficients, fracture apertures, and colloid transport parameters. (3) Results and interpretations of hydraulic and tracer tests conducted in saturated alluvium at the Alluvial Testing Complex (ATC) located at the southwestern corner of the Nevada Test Site (NTS). The test interpretations include estimates of hydraulic conductivities, storativities, total porosities, effective porosities, longitudinal dispersivities, matrix diffusion mass transfer coefficients, and colloid transport parameters. (4) Comparisons of sorption parameter estimates for a reactive solute tracer (lithium ion) derived from the C-wells field tracer tests and laboratory tests using C-wells core samples. (5) Sorption parameter estimates for lithium ion derived from laboratory tests using alluvium samples from ATC well NC-EWDP-19D. These estimates will allow a comparison of laboratory- and field-derived sorption parameters to be made in saturated alluvium if cross-hole tracer tests are conducted at the ATC.

  1. Supraoptimal root-zone temperature effects on water use of three Cercis spp 

    E-Print Network [OSTI]

    Lawrence, Beth Jez

    1993-01-01T23:59:59.000Z

    Committee: Dr. Jayne M. Zajicek Stem flow rates of three Cercis spp. exposed to supraoptimal root- zone temperatures were characterized in a controlled environment chamber using a water bath to maintain treatment temperatures. Flow rates of sap... in the xylem were measured every 15 sec and averaged over 15 min intervals. Sap flow measurements were correlated to root-zone temperatures recorded during the same time intervals. Whole plant transpiration was also measured gravimetrically. Root...

  2. Vadose Zone Transport Field Study: FY 2002 Status Report

    SciTech Connect (OSTI)

    Ward, Anderson L.; Gee, Glendon W.; Zhang, Z. F.; Keller, Jason M.

    2003-01-02T23:59:59.000Z

    This work reported here is part of the U. S. Department of Energy’s Science and Technology Initiative to develop improved conceptual models of flow and transport in the vadose zone, particularly for the Hanford Site, Washington. The National Academy of Sciences has identified significant knowledge gaps in conceptual model development as one reason for discovery of subsurface contamination in unexpected places. Inadequate conceptualizations limits, not only the understanding of long-term fate and transport, but also the selection and design of remediation technologies. Current conceptual models are limited partly because they do not account for the random heterogeneity that occurs under the extremes of very nonlinear flow behavior typical of the Hanford vadose zone. A major improvement in conceptual modeling of the Hanford vadose zone includes a better understanding and description of soil anisotropy, a property that appears to control much of the subsurface flow and transport in layered sediments at the Hanford Site.

  3. Vadose Zone Transport Field Study: Summary Report

    SciTech Connect (OSTI)

    Ward, Andy L.; Conrad, Mark E.; Daily, William D.; Fink, James B.; Freedman, Vicky L.; Gee, Glendon W.; Hoversten, Gary M.; Keller, Jason M.; Majer, Ernest L.; Murray, Christopher J.; White, Mark D.; Yabusaki, Steven B.; Zhang, Z. F.

    2006-07-31T23:59:59.000Z

    From FY 2000 through FY 2003, a series of vadose zone transport field experiments were conducted as part of the U.S. Department of Energy’s Groundwater/Vadose Zone Integration Project Science and Technology Project, now known as the Remediation and Closure Science Project, and managed by the Pacific Northwest National Laboratory (PNNL). The series of experiments included two major field campaigns, one at a 299-E24-11 injection test site near PUREX and a second at a clastic dike site off Army Loop Road. The goals of these experiments were to improve our understanding of vadose zone transport processes; to develop data sets to validate and calibrate vadose zone flow and transport models; and to identify advanced monitoring techniques useful for evaluating flow-and-transport mechanisms and delineating contaminant plumes in the vadose zone at the Hanford Site. This report summarizes the key findings from the field studies and demonstrates how data collected from these studies are being used to improve conceptual models and develop numerical models of flow and transport in Hanford’s vadose zone. Results of these tests have led to a better understanding of the vadose zone. Fine-scale geologic heterogeneities, including grain fabric and lamination, were observed to have a strong effect on the large-scale behavior of contaminant plumes, primarily through increased lateral spreading resulting from anisotropy. Conceptual models have been updated to include lateral spreading and numerical models of unsaturated flow and transport have revised accordingly. A new robust model based on the concept of a connectivity tensor was developed to describe saturation-dependent anisotropy in strongly heterogeneous soils and has been incorporated into PNNL’s Subsurface Transport Over Multiple Phases (STOMP) simulator. Application to field-scale transport problems have led to a better understanding plume behavior at a number of sites where lateral spreading may have dominated waste migration (e.g. BC Cribs and Trenches). The improved models have been also coupled with inverse models and newly-developed parameter scaling techniques to allow estimation of field-scale and effective transport parameters for the vadose zone. The development and utility of pedotransfer functions for describing fine-scale hydrogeochemical heterogeneity and for incorporating this heterogeneity into reactive transport models was explored. An approach based on grain-size statistics appears feasible and has been used to describe heterogeneity in hydraulic properties and sorption properties, such as the cation exchange capacity and the specific surface area of Hanford sediments. This work has also led to the development of inverse modeling capabilities for time-dependent, subsurface, reactive transport with transient flow fields using an automated optimization algorithm. In addition, a number of geophysical techniques investigated for their potential to provide detailed information on the subtle changes in lithology and bedding surfaces; plume delineation, leak detection. High-resolution resistivity is now being used for detecting saline plumes at several waste sites at Hanford, including tank farms. Results from the field studies and associated analysis have appeared in more than 46 publications generated over the past 4 years. These publications include test plans and status reports, in addition to numerous technical notes and peer reviewed papers.

  4. EnginEEring ZonE "The Engineering Zone

    E-Print Network [OSTI]

    Tobar, Michael

    EnginEEring ZonE "The Engineering Zone will push the limits in collaborative learning and research, and empower people to change the world. "Winthrop Professor John Dell Dean, Faculty of Engineering, Computing and Mathematics #12;2 | nEw CEntury Campaign ­ EnginEEring ZonE #12;nEw CEntury Campaign ­ EnginEEring ZonE | 3

  5. Summary -Procedure For Shutting Off The Oxygen Zone Valve 1. Implement RACE Call the Emergency Operator at 4-2012.

    E-Print Network [OSTI]

    Acton, Scott

    Summary - Procedure For Shutting Off The Oxygen Zone Valve 1. Implement RACE ­ Call the Emergency-cylinders for low oxygen needs and bag ventilated patients using E-cylinders. 4. Identify oxygen zone valve for the affected rooms/areas. 5. Turn off the flow of oxygen at the zone valve if the oxygen cannot be turned off

  6. Western Renewable Energy Zones, Phase 1: QRA Identification Technical Report

    SciTech Connect (OSTI)

    Pletka, R.; Finn, J.

    2009-10-01T23:59:59.000Z

    This report describes the Western Renewable Energy Zones (WREZ) Initiative Phase 1 Qualified Resource Area identification process, including the identification and economic analysis of Qualified Resource Areas (QRAs) and 'non-REZ' resources. These data and analyses will assist the Western US in its renewable energy transmission planning goals. The economic analysis in this report produced the input data for the WREZ Generation and Transmission model, which is a screening-level model to determine the optimal routing for and cost of delivering renewable energy from QRAs to load centers throughout the Western Interconnection. In June 2009, the Western Governors' Association accepted the Western Governors' Association WREZ Phase 1 Report in which the QRAs were mapped and the entire WREZ Phase 1 process was explained in general. That same month the Lawrence Berkeley National Laboratory released the WREZ Generation and Transmission Model (GTM), which was also developed by Black & Veatch. This report details the assumptions and methodologies that were used to produce the maps and resource analyses in the WGA report as well as the economic data used by the WREZ GTM. This report also provides the results of the non-REZ resource analysis for the first time in the WREZ initiative.

  7. The Enterprise Zone (Rhode Island)

    Broader source: Energy.gov [DOE]

    The Enterprise Zone offers tax incentives to business expanding their workforce by 5% at facilities in designated enterprise zones. The tax credit is equal to 50% of the annual wages paid to a new...

  8. Hydrogeological aspects of fault zones on various scales in the Roer Valley Rift System

    E-Print Network [OSTI]

    Bense, Victor

    within fault zones has important implications for the modeling of groundwater flow in sedimentary aquifer; Groundwater flow; Unconsolidated sediments; The Netherlands 1. Introduction Numerous studies carried out, 1081 HV Amsterdam, The Netherlands Abstract The impact of faults on the groundwater flow system

  9. abnormal resistive zones: Topics by E-print Network

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

    NO PRINTING ZONE NO PRINTING ZONE NO PRINTING ZONE NO PRINTING ZONE Kainen, Paul C. 11 Seismic Amplitude Versus Offset (AVO) Character of Geopressured Transition Zones Geosciences...

  10. Deficiencies in Vadose Zone Understanding at the INEEL

    SciTech Connect (OSTI)

    Wood, Thomas Ronald; Bates, Dona Louise; Bishop, Carolyn Wagoner; Heard, Robert Eugene; Hubbell, Joel Michael; Hull, Laurence Charles; Lehman, Richard Michael; Magnuson, Swen O; Mattson, Earl Douglas; Mccarthy, James Michael; Porro, Indrek; Ritter, Paul David; Roddy, Michael Scott; Singler, Robert Edward; Smith, Richard Paul

    2000-08-01T23:59:59.000Z

    Subsurface contamination in the vadose zone, that portion of the subsurface pathway between land surface and an underlying aquifer, poses environmental problems at the Idaho National Engineering and Environmental Laboratory (INEEL) in eastern Idaho and across the U.S. Department of Energy complex. Assessing potential adverse impacts from these contaminated sites requires an understanding of the mechanisms controlling contaminant transport. Currently, vadose zone experts at the INEEL cannot with confidence predict the movement of water and contaminants in the complex, heterogeneous, fractured subsurface at the INEEL, especially within the vadose zone. In the draft version (Revision 1) of the Vadose Zone Deficiencies document, deficiencies in scientific understanding of flow and transport processes in the vadose zone at the INEEL were identified and grouped into 13 categories and recommendations were provided to address each of the deficiencies. The draft document provided the basis for an INEEL Vadose Zone Workshop that was conducted October 20 and 21, 1999, in Idaho Falls, Idaho. The workshop was conducted to group and rank the previously identified deficiencies and for the subsequent development of science plans to address the deficiencies that limit reliable predictions of water and contaminant movement in the subsurface. The workshop participants, comprising INEEL and scientists and project managers and non-INEEL scientists knowledgeable about the vadose zone, developed science- and technology-based recommendations derived through a series of technical sessions at the workshop. In this document, the final version of the Vadose Zone Deficiencies document, the draft document has been incorporated, largely intact, as well as the results from the workshop. The workshop participants grouped the deficiencies in vadose zone understanding at the INEEL into seven categories. These seven categories will be the focus areas of five science plans that are being developed to address the deficiencies. This document lays the foundation for the INEEL Site-wide vadose zone roadmap.

  11. Liquid zone seal

    DOE Patents [OSTI]

    Klebanoff, Leonard E. (Dublin, CA)

    2001-01-01T23:59:59.000Z

    A seal assembly that provides a means for establishing multiple pressure zones within a system. The seal assembly combines a plate extending from the inner wall of a housing or inner enclosure that intersects with and is immersed in the fluid contained in a well formed in a tray contained within the enclosure. The fluid is a low vapor pressure oil, chemically inert and oxidation resistant. The use of a fluid as the sealing component provides a seal that is self-healing and mechanically robust not subject to normal mechanical wear, breakage, and formation of cracks or pinholes and decouples external mechanical vibrations from internal structural members.

  12. Saturated Zone Colloid Transport

    SciTech Connect (OSTI)

    H. S. Viswanathan

    2004-10-07T23:59:59.000Z

    This scientific analysis provides retardation factors for colloids transporting in the saturated zone (SZ) and the unsaturated zone (UZ). These retardation factors represent the reversible chemical and physical filtration of colloids in the SZ. The value of the colloid retardation factor, R{sub col} is dependent on several factors, such as colloid size, colloid type, and geochemical conditions (e.g., pH, Eh, and ionic strength). These factors are folded into the distributions of R{sub col} that have been developed from field and experimental data collected under varying geochemical conditions with different colloid types and sizes. Attachment rate constants, k{sub att}, and detachment rate constants, k{sub det}, of colloids to the fracture surface have been measured for the fractured volcanics, and separate R{sub col} uncertainty distributions have been developed for attachment and detachment to clastic material and mineral grains in the alluvium. Radionuclides such as plutonium and americium sorb mostly (90 to 99 percent) irreversibly to colloids (BSC 2004 [DIRS 170025], Section 6.3.3.2). The colloid retardation factors developed in this analysis are needed to simulate the transport of radionuclides that are irreversibly sorbed onto colloids; this transport is discussed in the model report ''Site-Scale Saturated Zone Transport'' (BSC 2004 [DIRS 170036]). Although it is not exclusive to any particular radionuclide release scenario, this scientific analysis especially addresses those scenarios pertaining to evidence from waste-degradation experiments, which indicate that plutonium and americium may be irreversibly attached to colloids for the time scales of interest. A section of this report will also discuss the validity of using microspheres as analogs to colloids in some of the lab and field experiments used to obtain the colloid retardation factors. In addition, a small fraction of colloids travels with the groundwater without any significant retardation. Radionuclides irreversibly sorbed onto this fraction of colloids also transport without retardation. The transport times for these radionuclides will be the same as those for nonsorbing radionuclides. The fraction of nonretarding colloids developed in this analysis report is used in the abstraction of SZ and UZ transport models in support of the total system performance assessment (TSPA) for the license application (LA). This analysis report uses input from two Yucca Mountain Project (YMP) analysis reports. This analysis uses the assumption from ''Waste Form and In-Drift Colloids-Associated Radionuclide Concentrations: Abstraction and Summary'' that plutonium and americium are irreversibly sorbed to colloids generated by the waste degradation processes (BSC 2004 [DIRS 170025]). In addition, interpretations from RELAP analyses from ''Saturated Zone In-Situ Testing'' (BSC 2004 [DIRS 170010]) are used to develop the retardation factor distributions in this analysis.

  13. Vertical flow chemical detection portal

    DOE Patents [OSTI]

    Linker, K.L.; Hannum, D.W.; Conrad, F.J.

    1999-06-22T23:59:59.000Z

    A portal apparatus is described for screening objects or persons for the presence of trace amounts of chemical substances such as illicit drugs or explosives. The apparatus has a test space, in which a person may stand, defined by two generally upright sides spanned by a horizontal transom. One or more fans in the transom generate a downward air flow (uni-directional) within the test space. The air flows downwardly from a high pressure upper zone, past the object or person to be screened. Air moving past the object dislodges from the surface thereof both volatile and nonvolatile particles of the target substance. The particles are entrained into the air flow which continues flowing downward to a lower zone of reduced pressure, where the particle-bearing air stream is directed out of the test space and toward preconcentrator and detection components. The sides of the portal are specially configured to partially contain and maintain the air flow. 3 figs.

  14. Solid oxide fuel cell systems with hot zones having improved reactant distribution

    DOE Patents [OSTI]

    Poshusta, Joseph C; Booten, Charles W; Martin, Jerry L

    2013-12-24T23:59:59.000Z

    A Solid Oxide Fuel Cell (SOFC) system having a hot zone with a center cathode air feed tube for improved reactant distribution, a CPOX reactor attached at the anode feed end of the hot zone with a tail gas combustor at the opposing end for more uniform heat distribution, and a counter-flow heat exchanger for efficient heat retention.

  15. Solid oxide fuel cell systems with hot zones having improved reactant distribution

    DOE Patents [OSTI]

    Poshusta, Joseph C.; Booten, Charles W.; Martin, Jerry L.

    2012-11-06T23:59:59.000Z

    A Solid Oxide Fuel Cell (SOFC) system having a hot zone with a center cathode air feed tube for improved reactant distribution, a CPOX reactor attached at the anode feed end of the hot zone with a tail gas combustor at the opposing end for more uniform heat distribution, and a counter-flow heat exchanger for efficient heat retention.

  16. Contaminants in Vadose Zone Environments

    SciTech Connect (OSTI)

    Wellman, Dawn M.; Freshley, Mark D.; Johnson, Timothy C.; Miracle, Ann L.

    2012-11-01T23:59:59.000Z

    Contaminants in vadose zone environments pose a long-term source and threat to groundwater resources, human health, and the environment. Several technical, regulatory, and policy challenges and opportunities are associated with contamination in vadose zone environments, particularly in remediation. In this special issue, ten papers present novel approaches to characterize, monitor, remediate, and predict the transport and fate of contaminants in vadose zone environments.

  17. Western Renewable Energy Zones (Presentation)

    SciTech Connect (OSTI)

    Hein, J.

    2011-06-01T23:59:59.000Z

    This presentation summarizes recent developments and trends pertaining to competitive renewable energy zones, transmission planning and the integration of renewable generation resources.

  18. QUALIFIED FORECAST OF ENSEMBLE POWER PRODUCTION BY SPATIALLY DISPERSED GRID-CONNECTED PV SYSTEMS

    E-Print Network [OSTI]

    Heinemann, Detlev

    QUALIFIED FORECAST OF ENSEMBLE POWER PRODUCTION BY SPATIALLY DISPERSED GRID- CONNECTED PV SYSTEMS: The contribution of power production by Photovoltaic (PV) systems to the electricity supply is constantly of the electricity grids and for energy trading. This paper presents an approach to predict regional PV power output

  19. Ver. CSI-T HB Sept 2012 INSTRUCTIONS FOR QUALIFYING AS A PPD PROVIDER

    E-Print Network [OSTI]

    Ver. CSI-T HB Sept 2012 INSTRUCTIONS FOR QUALIFYING AS A PPD PROVIDER FOR THE CALIFORNIA SOLAR to the requirements set forth in the CSI-Thermal Program Handbook. BACKGROUND AND REQUIREMENTS Customers participating to PAs as requested Provide technical support to PAs as well as customer support Communicate meter

  20. The TECHNICAL QUALIFYING EVALUATION (TQE) Department of Electrical Engineering and Computer Science

    E-Print Network [OSTI]

    Leiserson, Charles E.

    The TECHNICAL QUALIFYING EVALUATION (TQE) Department of Electrical Engineering and Computer Science are required from an approved TQE grid composed of 9 Groups. Two subjects must be selected from a single Group of B must be obtained to pass the TQE outright. The approved TQE grid is found below with the subject

  1. Rev. 9-29-08 Certification of Tax-Qualified Dependents / Domestic Partner Health & Dental Benefits

    E-Print Network [OSTI]

    Rev. 9-29-08 Certification of Tax-Qualified Dependents / Domestic Partner Health & Dental Benefits of the employee with respect to health and dental plan coverage. This form is to enable the employee the domestic partnership. Prior to completing this form, carefully read the handout entitled "Important Tax

  2. Electrical Engineering Ph.D. Qualifying Examination Guidelines for the Graduate Student

    E-Print Network [OSTI]

    O'Toole, Alice J.

    .), narrow band and broadband matching circuits, low noise amplifiers, noise figure, noise parameters references, opamp design, frequency response, stability and compensation, two-stage amplifiers. #12;f in the first three weeks of the semester using the "Application for the Doctoral Qualifying Examination" form

  3. How to Qualify for NIH Small Business Innovation and Technology Transfer Grants

    E-Print Network [OSTI]

    Berdichevsky, Victor

    How to Qualify for NIH Small Business Innovation and Technology Transfer Grants Professional Auditorium BBCetc is an Ann Arbor-based company that provides Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) proposal development services to technology based

  4. Breathing zone air sampler

    SciTech Connect (OSTI)

    Tobin, John (Bethel Park, PA)

    1989-01-01T23:59:59.000Z

    A sampling apparatus is provided which comprises a sampler for sampling air in the breathing zone of a wearer of the apparatus and a support for the sampler preferably in the form of a pair of eyeglasses. The sampler comprises a sampling assembly supported on the frame of the eyeglasses and including a pair of sample transport tubes which are suspended, in use, centrally of the frame so as to be disposed on opposite sides of the nose of the wearer and which each include an inlet therein that, in use, is disposed adjacent to a respective nostril of the nose of the wearer. A filter holder connected to sample transport tubes supports a removable filter for filtering out particulate material in the air sampled by the apparatus. The sample apparatus is connected to a pump for drawing air into the apparatus through the tube inlets so that the air passes through the filter.

  5. Breathing zone air sampler

    SciTech Connect (OSTI)

    Tobin, J.

    1989-08-22T23:59:59.000Z

    A sampling apparatus is presented which comprises a sampler for sampling air in the breathing zone of a wearer of the apparatus and a support for the sampler preferably in the form of a pair of eyeglasses. The sampler comprises a sampling assembly supported on the frame of the eyeglasses and including a pair of sample transport tubes which are suspended, in use, centrally of the frame so as to be disposed on opposite sides of the nose of the wearer and which each include an inlet therein that, in use, is disposed adjacent to a respective nostril of the nose of the wearer. A filter holder connected to sample transport tubes supports a removable filter for filtering out particulate material in the air sampled by the apparatus. The sample apparatus is connected to a pump for drawing air into the apparatus through the tube inlets so that the air passes through the filter.

  6. Geology and hydrogeology of the Edwards Aquifer Transition Zone, Bexar County, Texas

    E-Print Network [OSTI]

    Neathery, Jeffrey Stephen

    1989-01-01T23:59:59.000Z

    into the Edwards Aquifer (Figure 5). Rainfall and stream flow on the Balcones Fault Zone/Transition Zone also contributes to the water migrating to and recharging the Edwards Aquifer. Water 14 OKLAHOMA ARKANSAS TEXAS l a g/ CENTRAL I I(l TEXAS I I PLA M I... WATER LINE Glen Roee Llmeetone aneltlon Z one F Oem ~ lion FLOWING ARTESIAN WELL nanna fa an r aaneltlon Z one DWA AQUIFER EDWARDS PLATEAU BALCONES ESCARPMENT Glen Roe e Lime alone ALCONE FAULT ZONE Generalized cross section...

  7. Method for continuously recovering metals using a dual zone chemical reactor

    DOE Patents [OSTI]

    Bronson, Mark C. (Livermore, CA)

    1995-01-01T23:59:59.000Z

    A dual zone chemical reactor continuously processes metal-containing materials while regenerating and circulating a liquid carrier. The starting materials are fed into a first reaction zone of a vessel containing a molten salt carrier. The starting materials react to form a metal product and a by-product that dissolves in the molten salt that flows to a second reaction zone in the reaction vessel. The second reaction zone is partitioned from, but in fluid communication with, the first reaction zone. The liquid carrier continuously circulates along a pathway between the first reaction zone and the second reaction zone. A reactive gas is introduced into the second reaction zone to react with the reaction by-product to generate the molten salt. The metal product, the gaseous waste products, and the excess liquid carrier are removed without interrupting the operation of the reactor. The design of the dual zone reactor can be adapted to combine a plurality of liquid carrier regeneration zones in a multiple dual zone chemical reactor for production scale processing.

  8. Method for continuously recovering metals using a dual zone chemical reactor

    DOE Patents [OSTI]

    Bronson, M.C.

    1995-02-14T23:59:59.000Z

    A dual zone chemical reactor continuously processes metal-containing materials while regenerating and circulating a liquid carrier. The starting materials are fed into a first reaction zone of a vessel containing a molten salt carrier. The starting materials react to form a metal product and a by-product that dissolves in the molten salt that flows to a second reaction zone in the reaction vessel. The second reaction zone is partitioned from, but in fluid communication with, the first reaction zone. The liquid carrier continuously circulates along a pathway between the first reaction zone and the second reaction zone. A reactive gas is introduced into the second reaction zone to react with the reaction by-product to generate the molten salt. The metal product, the gaseous waste products, and the excess liquid carrier are removed without interrupting the operation of the reactor. The design of the dual zone reactor can be adapted to combine a plurality of liquid carrier regeneration zones in a multiple dual zone chemical reactor for production scale processing. 6 figs.

  9. Zone refining of plutonium metal

    SciTech Connect (OSTI)

    Blau, M.S.

    1994-08-01T23:59:59.000Z

    The zone refining process was applied to Pu metal containing known amounts of impurities. Rod specimens of plutonium metal were melted into and contained in tantalum boats, each of which was passed horizontally through a three-turn, high-frequency coil in such a manner as to cause a narrow molten zone to pass through the Pu metal rod 10 times. The impurity elements Co, Cr, Fe, Ni, Np, U were found to move in the same direction as the molten zone as predicted by binary phase diagrams. The elements Al, Am, and Ga moved in the opposite direction of the molten zone as predicted by binary phase diagrams. As the impurity alloy was zone refined, {delta}-phase plutonium metal crystals were produced. The first few zone refining passes were more effective than each later pass because an oxide layer formed on the rod surface. There was no clear evidence of better impurity movement at the slower zone refining speed. Also, constant or variable coil power appeared to have no effect on impurity movement during a single run (10 passes). This experiment was the first step to developing a zone refining process for plutonium metal.

  10. 3, 335364, 2006 Hyporheic zone

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    HESSD 3, 335­364, 2006 Hyporheic zone dynamics E. Hoehn and O. A. Cirpka Title Page Abstract dynamics in two alluvial flood plains of the Southern Alps using water temperature and tracers E. Hoehn: E. Hoehn (hoehn@eawag.ch) 335 #12;HESSD 3, 335­364, 2006 Hyporheic zone dynamics E. Hoehn and O. A

  11. Space-qualified, abuttable packaging for LBNL p-channel CCDs, Part II

    E-Print Network [OSTI]

    California at Berkeley, University of

    Space-qualified, abuttable packaging for LBNL p-channel CCDs, Part II R.W. Besuner1 , C. Baltay2 for 10.5 m pixel, 3.5k x 3.5k p-channel LBNL CCDs. These packages are built around a silicon carbide of 36.8mm square may be packed on a detector pitch as small as 44mm. LBNL-developed Front End

  12. How much can I qualify for? An eligible student may receive a SMART award of up

    E-Print Network [OSTI]

    Rosen, Jay

    How much can I qualify for? An eligible student may receive a SMART award of up to $4,000 for each.260.5700 ACHIEVERS NEW YORK CITY COLLEGE OF TECHNOLOGY CITY TECH O F F I C E O F F I N A N C I A L A I D ACHIEVE. Under the National SMART Grant program, CUNY will identify Pell eligible federal student aid recipients

  13. Sandia National Laboratories: critical marginal ice zone

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

    marginal ice zone NASA Award for Marginal Ice Zone Observations and Process Experiment (MIZOPEX) On February 24, 2015, in Analysis, Climate, Modeling & Analysis, Monitoring, News,...

  14. Long-Term Wisconsin Capital Assets Deferral and Wisconsin-Source Asset Exclusion Qualified Wisconsin Business Certification (Wisconsin)

    Broader source: Energy.gov [DOE]

    WEDC may certify businesses as a “Qualified Wisconsin Business”. The designation allows investors with WI capital gains tax liability to both defer that tax liability and if an investment is...

  15. Tax Deduction Qualified Software TRNSYS version 17.01.0016 TESS Libraries version 17.1.01

    Broader source: Energy.gov [DOE]

    provides information about the TRNSYS version 17.01.0016 and TESS Libraries version 17.1.01 qualified computer software, which calculates energy and power cost savings that meet federal tax incentive requirements for commercial buildings.

  16. PREPARED TESTIMONY OF ROBERT B. WEISENMILLER, PH.D. Qualifying Facilities: Resource Planning and Avoided Costs Methodology ................................ 1

    E-Print Network [OSTI]

    Calculation and Pricing Options for Qualifying Facilities Submitted by Independent Power Corporation on behalf.............................................................................................. 8 Market Power Assessments) for the Independent Energy Producers Association and the Department of General Services and the Solid Waste Management

  17. Kirchhoff integrals and Fresnel zones Ludek Klimes

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Kirchhoff integrals and Fresnel zones LudŸek KlimeŸs Department of Geophysics, Charles University of discrete values necessary for the numerical quadra­ ture. The Fresnel zones are then derived as the minimum of Fresnel zones is purely local, independent of the reference travel times. The definition of Fresnel zones

  18. MODELING OF POROSITY FORMATION AND FEEDING FLOW IN STEEL CASTING

    E-Print Network [OSTI]

    Beckermann, Christoph

    . By combining Darcy's law, which governs fluid flow in the mushy zone, with the equation for Stokes' flow, which governs the motion of slow-flowing pure liquid, it is possible to derive a momentum equation that is valid everywhere in the solution domain. A pressure equation is then derived by combining this momentum equation

  19. Overlap zoned electrically heated particulate filter

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI; Chapman, Mark R [Brighton, MI

    2011-07-19T23:59:59.000Z

    A system includes a particulate matter (PM) filter that includes an upstream end for receiving exhaust gas and a downstream end. A zoned heater is arranged spaced from the upstream end and comprises N zones, where N is an integer greater than one, wherein each of the N zones comprises M sub-zones, where M is an integer greater than or equal to one, and wherein the N zones and the M sub-zones are arranged in P layers, where P is an integer greater than one. A control module selectively activates at least a selected one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones and deactivates non-selected ones of the N zones.

  20. Zone refining of plutonium metal

    SciTech Connect (OSTI)

    NONE

    1997-05-01T23:59:59.000Z

    The purpose of this study was to investigate zone refining techniques for the purification of plutonium metal. The redistribution of 10 impurity elements from zone melting was examined. Four tantalum boats were loaded with plutonium impurity alloy, placed in a vacuum furnace, heated to 700{degrees}C, and held at temperature for one hour. Ten passes were made with each boat. Metallographic and chemical analyses performed on the plutonium rods showed that, after 10 passes, moderate movement of certain elements were achieved. Molten zone speeds of 1 or 2 inches per hour had no effect on impurity element movement. Likewise, the application of constant or variable power had no effect on impurity movement. The study implies that development of a zone refining process to purify plutonium is feasible. Development of a process will be hampered by two factors: (1) the effect on impurity element redistribution of the oxide layer formed on the exposed surface of the material is not understood, and (2) the tantalum container material is not inert in the presence of plutonium. Cold boat studies are planned, with higher temperature and vacuum levels, to determine the effect on these factors. 5 refs., 1 tab., 5 figs.

  1. Gas flow to a barometric pumping well in a multilayer unsaturated Kehua You,1

    E-Print Network [OSTI]

    Zhan, Hongbin

    Gas flow to a barometric pumping well in a multilayer unsaturated zone Kehua You,1 Hongbin Zhan,1. [1] When an open well is installed in an unsaturated zone, gas can flow between the subsurface and the well depending on the gas pressure gradient near the well. This well is called a barometric pumping

  2. A study of a zone approach to IAEA (International Atomic Energy Agency) safeguards: The low-enriched-uranium zone of a light-water-reactor fuel cycle

    SciTech Connect (OSTI)

    Fishbone, L.G.; Higinbotham, W.A.

    1986-06-01T23:59:59.000Z

    At present the IAEA designs its safeguards approach with regard to each type of nuclear facility so that the safeguards activities and effort are essentially the same for a given type and size of nuclear facility wherever it may be located. Conclusions regarding a state are derived by combining the conclusions regarding the effectiveness of safeguards for the individual facilities within a state. In this study it was convenient to define three zones in a state with a closed light-water-reactor nuclear fuel cycle. Each zone contains those facilities or parts thereof which use or process nuclear materials of the same safeguards significance: low-enriched uranium, radioactive spent fuel, or recovered plutonium. The possibility that each zone might be treated as an extended material balance area for safeguards purposes is under investigation. The approach includes defining the relevant features of the facilities in the three zones and listing the safeguards activities which are now practiced. This study has focussed on the fresh-fuel zone, the several facilities of which use or process low-enriched uranium. At one extreme, flows and inventories would be verified at each material balance area. At the other extreme, the flows into and out of the zone and the inventory of the whole zone would be verified. There are a number of possible safeguards approaches which fall between the two extremes. The intention is to develop a rational approach which will make it possible to compare the technical effectiveness and the inspection effort for the facility-oriented approach, for the approach involving the zone as a material balance area, and for some reasonable intermediate safeguards approaches.

  3. Renewable Energy Generation Zone Property Tax Abatement

    Broader source: Energy.gov [DOE]

    Local areas in Mimssouri can be designated as Renewable Energy Generation Zones and receive property tax abatements as part of the Enhanced Enterprise Zone program. Legislation (H.B. 737) enacted...

  4. Enterprise Zone Sales Tax Exemption (Kansas)

    Broader source: Energy.gov [DOE]

    The Enterprise Zone Sales Tax Exemption offers businesses located in such economic development zones a 100 percent sales tax exemption on the purchase of labor and materials to construct or remodel...

  5. Local Option- Rural Renewable Energy Development Zones

    Broader source: Energy.gov [DOE]

    Cities, counties, or several contiguous counties in Oregon can set up Rural Renewable Energy Development Zones. The zone can only cover territory outside of the urban growth boundary of any large...

  6. Keystone Innovation Zone Tax Credit Program (Pennsylvania)

    Broader source: Energy.gov [DOE]

    The Keystone Innovation Zone Tax Credit Program provides tax credits to companies less than eight years old who operate within designated innovation zones. A total pool of $25 million in tax...

  7. Virginia Enterprise Zone Job Creation Grant (Virginia)

    Broader source: Energy.gov [DOE]

    The Virginia Enterprise Zone Job Creation Grant provides cash grants to businesses located in Enterprise zones that create permanent new jobs over a four-job threshold. State incentives are...

  8. Santa Clara County- Zoning Ordinance (California)

    Broader source: Energy.gov [DOE]

    Santa Clara County's Zoning Ordinance includes standards for wind and solar structures for residential, agricultural, and commercial uses.

  9. Saturated Zone In-Situ Testing

    SciTech Connect (OSTI)

    P. W. Reimus; M. J. Umari

    2003-12-23T23:59:59.000Z

    The purpose of this scientific analysis is to document the results and interpretations of field experiments that have been conducted to test and validate conceptual flow and radionuclide transport models in the saturated zone (SZ) near Yucca Mountain. The test interpretations provide estimates of flow and transport parameters that are used in the development of parameter distributions for Total System Performance Assessment (TSPA) calculations. These parameter distributions are documented in the revisions to the SZ flow model report (BSC 2003 [ 162649]), the SZ transport model report (BSC 2003 [ 162419]), the SZ colloid transport report (BSC 2003 [162729]), and the SZ transport model abstraction report (BSC 2003 [1648701]). Specifically, this scientific analysis report provides the following information that contributes to the assessment of the capability of the SZ to serve as a barrier for waste isolation for the Yucca Mountain repository system: (1) The bases for selection of conceptual flow and transport models in the saturated volcanics and the saturated alluvium located near Yucca Mountain. (2) Results and interpretations of hydraulic and tracer tests conducted in saturated fractured volcanics at the C-wells complex near Yucca Mountain. The test interpretations include estimates of hydraulic conductivities, anisotropy in hydraulic conductivity, storativities, total porosities, effective porosities, longitudinal dispersivities, matrix diffusion mass transfer coefficients, matrix diffusion coefficients, fracture apertures, and colloid transport parameters. (3) Results and interpretations of hydraulic and tracer tests conducted in saturated alluvium at the Alluvium Testing Complex (ATC), which is located at the southwestern corner of the Nevada Test Site (NTS). The test interpretations include estimates of hydraulic conductivities, storativities, total porosities, effective porosities, longitudinal dispersivities, matrix diffusion mass transfer coefficients, and colloid transport parameters. (4) Comparisons of sorption parameter estimates for a reactive solute tracer (lithium ion) derived from both the C-wells field tracer tests and laboratory tests using C-wells core samples. (5) Sorption parameter estimates for lithium ion derived from laboratory tests using alluvium samples from NC-EWDP-19D1 (one of the wells at the ATC) so that a comparison of laboratory- and field-derived sorption parameters can be made in saturated alluvium if cross-hole tracer tests are conducted at the ATC.

  10. LOCALISATION OF A REACTIVE TRANSPORT ZONE IN A SATU-RATED KARSTIC CONDUIT DEDUICED FROM NATURAL AND ARTI-

    E-Print Network [OSTI]

    Boyer, Edmond

    : For groundwater resources managers, flow modeling is a useful tool to investigate sustainable scenarios of water the diameter of the conduit zone by an estimated 40 cm in 100 years. INTRODUCTION For groundwater resource managers, groundwater flow modeling is an essential tool for investigating proposed sustainable scenarios

  11. Combustion Air Zone (CAZ) Best Practices | Department of Energy

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

    Combustion Air Zone (CAZ) Best Practices Combustion Air Zone (CAZ) Best Practices Combustion Air Zone (CAZ) Best Practices Webinar. Presentation More Documents & Publications...

  12. Global transition zone tomography Jeroen Ritsema1

    E-Print Network [OSTI]

    Ritsema, Jeroen

    Global transition zone tomography Jeroen Ritsema1 and Hendrik Jan van Heijst Seismological on accurate models of seismic velocity variation in the upper mantle transition zone (400­1000 km depth. Such data provide new global transition zone constraints. We combined more than a million measurements

  13. Eastern Energy Zones Mapping Tool

    Broader source: Energy.gov [DOE]

    The Eastern Interconnection States’ Planning Council (EISPC) has released the Energy Zones (EZ) Mapping Tool, a free, web-based interactive tool that will help states and other stakeholders in the Eastern Interconnection identify geographic areas suitable for the development of clean energy resources (natural gas, sequestration or utilitization locations for C02 from coal, nuclear, and renewable) which can potentially provide significant amounts of new electric power generation.

  14. Finite element analysis of heat transport in a hydrothermal zone

    SciTech Connect (OSTI)

    Bixler, N.E.; Carrigan, C.R.

    1987-01-01T23:59:59.000Z

    Two-phase heat transport in the vicinity of a heated, subsurface zone is important for evaluation of nuclear waste repository design and estimation of geothermal energy recovery, as well as prediction of magma solidification rates. Finite element analyses of steady, two-phase, heat and mass transport have been performed to determine the relative importance of conduction and convection in a permeable medium adjacent to a hot, impermeable, vertical surface. The model includes the effects of liquid flow due to capillarity and buoyancy and vapor flow due to pressure gradients. Change of phase, with its associated latent heat effects, is also modeled. The mechanism of capillarity allows for the presence of two-phase zones, where both liquid and vapor can coexist, which has not been considered in previous investigations. The numerical method employs the standard Galerkin/finite element method, using eight-node, subparametric or isoparametric quadrilateral elements. In order to handle the extreme nonlinearities inherent in two-phase, nonisothermal, porous-flow problems, steady-state results are computed by integrating transients out to a long time (a method that is highly robust).

  15. Statistical factors to qualify the superconducting magnets for the SSC based on warm/cold correlations

    SciTech Connect (OSTI)

    Kim, K.; Devred, A.; Coles, M.; Tompkins, J.

    1993-05-01T23:59:59.000Z

    All of the SSC production magnets will be measured at room temperature (warm), but only a fraction of these will be measured at liquid helium temperature (cold). The fractional information will then be analyzed to determine warm acceptance criteria for the field quality of the SSC magnets. Regarding predictors of the field quality based on partial information, there are several observations and studies based on the warm/cold correlation. A different facet of the acceptance test is production control, which interprets the warm/cold correlation to adjust the process parameters. For these applications, we are evaluating statistical techniques relying on asymptotic estimators of the systematic errors and random errors, and their respective confidence intervals. The estimators are useful to qualify the population magnets based on a subset of sample magnets. We present the status of our work, including: (i) a recapitulation of analytic formulas, (ii) a justification based on HERA magnet experience, and (iii) a practical interpretation of these estimators.

  16. Late Tertiary paleomagnetic data from Leyte, Philippines: implications for Philippine fault zone motion

    E-Print Network [OSTI]

    Cole, Jay Timothy

    1988-01-01T23:59:59.000Z

    samples were collected from 19 lava, flows (one site per flow) in Leyte and nearby islands to the north. The data collected from these sites were combined with previously reported results I'rom northeastern Mindanao. The paleomagnetic data from Neogene... rocks within or very near the Philippine fault zone on Leyte, Mindanao, Biliran, Maripipi, and Genuruan Islands fall into two populations. Seventeen late Neogene sites (14 normal polarity and 3 reversed polarity) yield a mean direction D = 358. 9', I...

  17. Interpretation of chemical and isotopic data from boreholes in the unsaturated zone at Yucca Mountain, Nevada

    SciTech Connect (OSTI)

    Yang, I.C.; Rattray, G.W. [Geological Survey, Denver, CO (United States); Yu, P. [Univ. of Colorado, Boulder, CO (United States)

    1996-12-31T23:59:59.000Z

    Analyses of pore water from boreholes at Yucca Mountain indicate that unsaturated-zone pore water has significantly larger concentrations of chloride and dissolved solids than the saturated-zone water or perched-water bodies. Chemical compositions are of the calcium sulfate or calcium chloride types in the Paintbrush Group (Tiva Canyon, Yucca Mountain, Pah Canyon, and bedded tuffs), and sodium carbonate or bicarbonate type water in the Calico Hills Formation. Tritium profiles from boreholes at Yucca Mountain indicate tritium-concentration inversions (larger tritium concentrations are located below the smaller tritium concentration in a vertical profile) occur in many places. These inversions indicate preferential flow through fractures. Rock-gas compositions are similar to that of atmospheric air except that carbon dioxide concentrations are generally larger than those in the air. The delta carbon-13 values of gas are fairly constant from surface to 365.8 meters, indicating little interaction between the gas CO{sub 2} and caliche in the soil. Model calculations indicate that the gas transport in the unsaturated zone at Yucca Mountain agrees well with the gas-diffusion process. Tritium-modeling results indicate that the high tritium value of about 100 tritium units in the Calico Hills Formation of UZ-16 is within limits of a piston-flow model with a water residence time of 32 to 35 years. The large variations in tritium concentrations with narrow peaks imply piston flow or preferential fracture flow rather than matrix flow. In reality, the aqueous-phase flow in the unsaturated zone is between piston and well-mixed flows but is closer to a piston flow.

  18. QUALIFYING EXAM (SPRING 2002) Answer any six of the following eight questions. You must state clearly any general

    E-Print Network [OSTI]

    Hagen, Thomas

    QUALIFYING EXAM (SPRING 2002) ALGEBRA Answer any six of the following eight questions. You must state clearly any general results you use. 1. Prove that if G is a non-trivial p-group then the center of G is non-trivial. Deduce that every p-group is solvable. 2. Prove that if G is a simple group

  19. Archway Education Professional The University of Georgia is seeking a qualified candidate to serve as the Archway Education Professional in

    E-Print Network [OSTI]

    Arnold, Jonathan

    Archway Education Professional The University of Georgia is seeking a qualified candidate to serve as the Archway Education Professional in Dalton-Whitfield County, Georgia. The Archway Partnership was initiated with the University of Georgia. The Archway Education Professional is a UGA Public Service (Public Service Assistant

  20. COMPUTER/NETWORK SUPPORT ASSISTANT The University Wisconsin -Milwaukee School of Continuing Education is seeking a qualified

    E-Print Network [OSTI]

    Saldin, Dilano

    Education is seeking a qualified student to assist with Network Administration and Computer Support Building at 161 W. Wisconsin Ave., in downtown Milwaukee. Job Description Assist Network Administrator and availability to: scetech@uwm.edu Network Administration and Computer Support School of Continuing Education

  1. Percolated water can leach undesirable chemical compounds below the rooting zone of plants and

    E-Print Network [OSTI]

    a great threat to plant and animal health, the environment, the economy, and civilization. Further ReadingPercolated water can leach undesirable chemical compounds below the rooting zone of plants. Surface runoff typically begins as sheet flow but, as it accelerates and gains in erosive power

  2. Old F-Area Seepage Basin Transport Analyses in Support of a SCDHEC Mixing Zone Application

    SciTech Connect (OSTI)

    Aleman, S.E.

    1998-12-04T23:59:59.000Z

    This report documents the groundwater flow and transport results presented in the groundwater mixing zone application (GWMZ) for the Old F-Area Seepage Basin (OFASB) submitted to the South Carolina Department of Health and Environmental Control (SCDHEC) in March, 1997 (WSRC, 1997).

  3. Accommodation Zone | 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 directedAnnualProperty Edit withTianlinPapersWindey Wind6:00-06:00About OpenEIAccionaAccommodation Zone Jump

  4. Pajarito Plateau Groundwater Flow and Transport Modeling Process-Level and Systems Models of Groundwater Flow and

    E-Print Network [OSTI]

    Lu, Zhiming

    Pajarito Plateau Groundwater Flow and Transport Modeling 1 Process-Level and Systems Models of Groundwater Flow and Transport Beneath the Pajarito Plateau: Migration of High Explosives from Technical Area Groundwater Modeling Project Systems Model Vadose Zone Model Regional Aquifer Model #12;Pajarito Plateau

  5. Flow chamber

    DOE Patents [OSTI]

    Morozov, Victor (Manassas, VA)

    2011-01-18T23:59:59.000Z

    A flow chamber having a vacuum chamber and a specimen chamber. The specimen chamber may have an opening through which a fluid may be introduced and an opening through which the fluid may exit. The vacuum chamber may have an opening through which contents of the vacuum chamber may be evacuated. A portion of the flow chamber may be flexible, and a vacuum may be used to hold the components of the flow chamber together.

  6. Geological flows

    E-Print Network [OSTI]

    Yu. N. Bratkov

    2008-11-19T23:59:59.000Z

    In this paper geology and planetology are considered using new conceptual basis of high-speed flow dynamics. Recent photo technics allow to see all details of a flow, 'cause the flow is static during very short time interval. On the other hand, maps and images of many planets are accessible. Identity of geological flows and high-speed gas dynamics is demonstrated. There is another time scale, and no more. All results, as far as the concept, are new and belong to the author. No formulae, pictures only.

  7. Safety relief valve sizing: comparison of two-phase flow models to empirical data

    E-Print Network [OSTI]

    Meiller, Paul Robert

    2013-02-22T23:59:59.000Z

    Releases", Plant Operations Progress, v. 4, no. 3, pp. 132-134 (1985). 34 13. Bannerjee, S. , and S. Behring, "A Qualified Database for the Critical Flow of Water", EPRI Report NP-4556 (May 1986). 14. Sozzi, G. L. and W. A. Sutherland, "Critical Flow.... Most of this research was driven by work on boiling water reactors and predictions of flow rates in boiler tubes and broken pipes or leaks. One EPRI Report (13) compiled the available data sources and then screened the sources for inconsistent...

  8. Sandia National Laboratories: Marginal Ice Zone Observations...

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

    Marginal Ice Zone Observations and Processes Experiment mission Sierra Unmanned Aerial Vehicle to Begin Flights Over Arctic Sea Ice On July 25, 2013, in Climate, Customers &...

  9. Enterprise Zone Retraining Credit Program (South Carolina)

    Broader source: Energy.gov [DOE]

    The Enterprise Zone Retraining Credit Program is a discretionary incentive that helps existing industries maintain their competitive edge and retain their existing workforce by allowing them to...

  10. Maricopa County- Renewable Energy Systems Zoning Ordinance

    Broader source: Energy.gov [DOE]

    The Maricopa County Zoning Ordinance contains provisions for siting renewable energy systems. The ordinance defines renewable energy as "energy derived primarily from sources other than fossil...

  11. The Ohio Enterprise Zone program (Ohio)

    Broader source: Energy.gov [DOE]

    The Ohio Enterprise Zone program is an economic development tool administered by municipal and county governments that provides real and personal property tax exemptions to businesses making...

  12. Enrichment Zoning Options for the Small Nuclear Rocket Engine (SNRE)

    SciTech Connect (OSTI)

    Bruce G. Schnitzler; Stanley K. Borowski

    2010-07-01T23:59:59.000Z

    Advancement of U.S. scientific, security, and economic interests through a robust space exploration program requires high performance propulsion systems to support a variety of robotic and crewed missions beyond low Earth orbit. In NASA’s recent Mars Design Reference Architecture (DRA) 5.0 study (NASA-SP-2009-566, July 2009), nuclear thermal propulsion (NTP) was again selected over chemical propulsion as the preferred in-space transportation system option because of its high thrust and high specific impulse (-900 s) capability, increased tolerance to payload mass growth and architecture changes, and lower total initial mass in low Earth orbit. An extensive nuclear thermal rocket technology development effort was conducted from 1955-1973 under the Rover/NERVA Program. The Small Nuclear Rocket Engine (SNRE) was the last engine design studied by the Los Alamos National Laboratory during the program. At the time, this engine was a state-of-the-art design incorporating lessons learned from the very successful technology development program. Past activities at the NASA Glenn Research Center have included development of highly detailed MCNP Monte Carlo transport models of the SNRE and other small engine designs. Preliminary core configurations typically employ fuel elements with fixed fuel composition and fissile material enrichment. Uniform fuel loadings result in undesirable radial power and temperature profiles in the engines. Engine performance can be improved by some combination of propellant flow control at the fuel element level and by varying the fuel composition. Enrichment zoning at the fuel element level with lower enrichments in the higher power elements at the core center and on the core periphery is particularly effective. Power flattening by enrichment zoning typically results in more uniform propellant exit temperatures and improved engine performance. For the SNRE, element enrichment zoning provided very flat radial power profiles with 551 of the 564 fuel elements within 1% of the average element power. Results for this and alternate enrichment zoning options for the SNRE are compared.

  13. Nuclear qualified in-containment electrical connectors and method of connecting electrical conductors

    DOE Patents [OSTI]

    Powell, J. G. (Clifton Park, NY)

    1991-01-01T23:59:59.000Z

    A nuclear qualified in-containment electrical connection comprises an insulated, sheathed instrument lead having electrical conductors extending from one end thereof to provide two exposed lead wires, a watertight cable having electrical conducting wires therein and extending from one end of the cable to provide two lead wires therefrom, two butt splice connectors each connecting the ends of respective ones of the lead wires from the instrument lead and cable, a length of heat shrinkable plastic tubing positioned over each butt splice connector and an adjacent portion of a respective lead wire from the cable and heat shrunk into position, a length of heat shrinkable plastic tubing on the end portion of the instrument lead adjacent the lead wires therefrom and heat shrunk thereon and a length of outer heat shrinkable plastic tubing extending over the end portion of the instrument lead and the heat shrinkable tubing thereon and over the butt splice connectors and a portion of the cable adjacent the cable lead lines, the outer heat shrinkable tubing being heat shrunk into sealing position on the instrument lead and cable.

  14. Confined zone dispersion project. Final technical report

    SciTech Connect (OSTI)

    NONE

    1994-06-01T23:59:59.000Z

    This report describes the performance of the confined zone dispersion (CZD) flue gas desulfurization (FGD) system in removing sulfur dioxide (SO{sub 2}) from flue gas in the coal-fired boiler. The CZD-FGD system, installed at Pennsylvania Electric Company`s (Penelec`s) Seward Power Station, was designed to remove 50% of the SO{sub 2} from one-half of Unit No. 5`s flue gas when the boiler is fired with 1.5% sulfur coal. Section 1 discusses the significance of CZD, the purpose of this report, the history of the project, and the role of DOE in the project, describes the project organization, and lists the six design areas involving proprietary information. Section 2 presents project location, objectives, and phases, and discusses the test program. Section 3 explains the process flow diagram, piping and instrumentation diagrams and operating controls, site plan, equipment layouts, and process equipment. Section 4 provides an integrated discussion of all the test results obtained during the test program, backed by tabulations and graphics. Section 5 describes the testing failures and corrective actions taken. Section 6, reliability/availability/maintainability analysis data of major equipment, covers the following systems: atomizing, sootblowing, lime, flue gas, and controls and instrumentation. Section 7 summarizes the capital cost requirements for the Seward CZD demonstration unit and discusses the capital and operating costs of installing the process at plants with various unit capacities. Section 8 discusses plans to continue the CZD demonstration to achieve longer term continuous operation at SO{sub 2} removals of 50%. Section 9 presents the principal findings of the CZD demonstration and recommends additional testing.

  15. Author's personal copy Numerical study of interference between simple-shape bodies in hypersonic flows

    E-Print Network [OSTI]

    Riabov, Vladimir V.

    2008 Available online 3 December 2008 Keywords: Hypersonic rarefied-gas flows Direct simulation Monte-Carlo method Flow interference Simple-shape bodies Toroidal balloon a b s t r a c t Hypersonic rarefied-gas, the configuration of subsonic flow zones), skin friction, pressure distribu- tion, lift, and drag have been found. Ó

  16. Reference Phase of Fresnel Zone Plates

    E-Print Network [OSTI]

    G. W. Webb

    2003-02-28T23:59:59.000Z

    The standard zone plate assumes that the shortest ray connecting a radiation source and a detection point has a phase of 0 deg thereby defining a reference phase. Here we examine the experimental consequences of varying this reference phase from 0 deg to 360 deg. It is concluded that reference phase is an intrinsic and useful property of zone plates.

  17. Treating tar sands formations with karsted zones

    DOE Patents [OSTI]

    Vinegar, Harold J. (Bellaire, TX); Karanikas, John Michael (Houston, TX)

    2010-03-09T23:59:59.000Z

    Methods for treating a tar sands formation are described herein. The tar sands formation may have one or more karsted zones. Methods may include providing heat from one or more heaters to one or more karsted zones of the tar sands formation to mobilize fluids in the formation. At least some of the mobilized fluids may be produced from the formation.

  18. Colloid Facilitated Transport of Radioactive Cations in the Vadose Zone: Field Experiments Oak Ridge

    SciTech Connect (OSTI)

    James E. Saiers

    2012-09-20T23:59:59.000Z

    The overarching goal of this study was to improve understanding of colloid-facilitated transport of radioactive cations through unsaturated soils and sediments. We conducted a suite of laboratory experiments and field experiments on the vadose-zone transport of colloids, organic matter, and associated contaminants of interest to the U.S. Department of Energy (DOE). The laboratory and field experiments, together with transport modeling, were designed to accomplish the following detailed objectives: 1. Evaluation of the relative importance of inorganic colloids and organic matter to the facilitation of radioactive cation transport in the vadose zone; 2. Assessment of the role of adsorption and desorption kinetics in the facilitated transport of radioactive cations in the vadose zone; 3. Examination of the effects of rainfall and infiltration dynamics and in the facilitated transport of radioactive cations through the vadose zone; 4. Exploration of the role of soil heterogeneity and preferential flow paths (e.g., macropores) on the facilitated transport of radioactive cations in the vadose zone; 5. Development of a mathematical model of facilitated transport of contaminants in the vadose zone that accurately incorporates pore-scale and column-scale processes with the practicality of predicting transport with readily available parameters.

  19. Ring diagram analysis of velocity fields within the solar convection zone

    E-Print Network [OSTI]

    Sarbani Basu; H. M. Antia; S. C. Tripathy

    1998-06-23T23:59:59.000Z

    Ring diagram analysis of solar oscillation power spectra obtained from MDI data is performed to study the velocity fields within the solar convection zone. The three dimensional power spectra are fitted to a model with a Lorentzian profile in frequency and includes the advection of the wave front by horizontal flows to obtain the two horizontal components of flows as a function of the horizontal wave number and radial order of the oscillation modes. This information is then inverted using the OLA and RLS techniques to infer the variation in flow velocity with depth. The resulting velocity fields yield the mean rotation velocity at different latitudes which agrees reasonably with helioseismic estimates. The zonal flow inferred in the outermost layers also appears to be in agreement with other measurements. A meridional flow from equator polewards is found to have an amplitude of about 25 m/s near the surface and the amplitude appears to increase with depth.

  20. January 2006 UNL Mathematics Qualifying Exam 852/970 Do seven questions. Of these at least three should be from section A and at least three from

    E-Print Network [OSTI]

    Logan, David

    January 2006 UNL Mathematics Qualifying Exam 852/970 Do seven questions. Of these at least three} such that Pi is a path from si to ti. Question 3. Prove that every planar graph G has (G) 5. Question 4

  1. Global helioseismic evidence for a deeply penetrating Solar meridional flow consisting of multiple flow cells

    E-Print Network [OSTI]

    Schad, A; Roth, M

    2013-01-01T23:59:59.000Z

    We use a novel global helioseismic analysis method to infer the meridional flow in the deep Solar interior. The method is based on the perturbation of eigenfunctions of Solar p modes due to meridional flow. We apply this method to time series obtained from Dopplergrams measured by the Michelson Doppler Imager aboard the Solar and Heliospheric Observatory (SOHO) covering the observation period 2004-2010. Our results show evidence that the meridional flow reaches down to the base of the convection zone. The flow profile has a complex spatial structure consisting of multiple flow cells distributed in depth and latitude. Toward the Solar surface, our results are in good agreement with flow measurements from local helioseismology.

  2. Remedy Evaluation Framework for Inorganic, Non-Volatile Contaminants in the Vadose Zone

    SciTech Connect (OSTI)

    Truex, Michael J.; Carroll, Kenneth C.

    2013-05-01T23:59:59.000Z

    Contaminants in the vadose zone may act as a potential long-term source of groundwater contamination and need to be considered in remedy evaluations. In many cases, remediation decisions for the vadose zone will need to be made all or in part based on projected impacts to groundwater. Because there are significant natural attenuation processes inherent in vadose zone contaminant transport, remediation in the vadose zone to protect groundwater is functionally a combination of natural attenuation and use of other remediation techniques, as needed, to mitigate contaminant flux to groundwater. Attenuation processes include both hydrobiogeochemical processes that serve to retain contaminants within porous media and physical processes that mitigate the rate of water flux. In particular, the physical processes controlling fluid flow in the vadose zone are quite different and generally have a more significant attenuation impact on contaminant transport relative to those within the groundwater system. A remedy evaluation framework is presented herein that uses an adaptation of the established EPA Monitored Natural Attenuation (MNA) evaluation approach and a conceptual model based approach focused on identifying and quantifying features and processes that control contaminant flux through the vadose zone. A key concept for this framework is to recognize that MNA will comprise some portion of all remedies in the vadose zone. Thus, structuring evaluation of vadose zone waste sites to use an MNA-based approach provides information necessary to either select MNA as the remedy, if appropriate, or to quantify how much additional attenuation would need to be induced by a remedial action (e.g., technologies considered in a feasibility study) to augment the natural attenuation processes and meet groundwater protection goals.

  3. Cooling Flows or Heating Flows?

    E-Print Network [OSTI]

    James Binney

    2003-10-08T23:59:59.000Z

    It is now clear that AGN heat cooling flows, largely by driving winds. The winds may contain a relativistic component that generates powerful synchrotron radiation, but it is not clear that all winds do so. The spatial and temporal stability of the AGN/cooling flow interaction are discussed. Collimation of the winds probably provides spatial stability. Temporal stability may be possible only for black holes with masses above a critical value. Both the failure of cooling flows to have adiabatic cores and the existence of X-ray cavities confirm the importance of collimated outflows. I quantify the scale of the convective flow that the AGN Hydra would need to drive if it balanced radiative inward flow by outward flow parallel to the jets. At least in Virgo any such flow must be confined to r<~20 kpc. Hydrodynamical simulations suggest that AGN outbursts cannot last longer than ~25 Myr. Data for four clusters with well studied X-ray cavities suggests that heating associated with cavity formation approximately balances radiative cooling. The role of cosmic infall and the mechanism of filament formation are briefly touched on.

  4. Mobile machine hazardous working zone warning system

    DOE Patents [OSTI]

    Schiffbauer, W.H.; Ganoe, C.W.

    1999-08-17T23:59:59.000Z

    A warning system is provided for a mobile working machine to alert an individual of a potentially dangerous condition in the event the individual strays into a hazardous working zone of the machine. The warning system includes a transmitter mounted on the machine and operable to generate a uniform magnetic field projecting beyond an outer periphery of the machine in defining a hazardous working zone around the machine during operation. A receiver, carried by the individual and activated by the magnetic field, provides an alarm signal to alert the individual when he enters the hazardous working zone of the machine. 3 figs.

  5. Mixing zones in magnetized differentially rotating stars

    E-Print Network [OSTI]

    V. Urpin

    2005-09-29T23:59:59.000Z

    We study the secular instability of magnetized differentially rotating radiative zones taking account of viscosity and magnetic and thermal diffusivities. The considered instability generalizes the well-known Goldreich-Schubert-Fricke instability for the case of a sufficiently strong magnetic field. In magnetized stars, instability can lead to a formation of non-spherical unstable zones where weak turbulence mixes the material between the surface and interiors. Such unstable zones can manifest themselves by a non-spherical distribution of abundance anormalies on the stellar surface.

  6. Mobile machine hazardous working zone warning system

    DOE Patents [OSTI]

    Schiffbauer, William H. (Connellsville, PA); Ganoe, Carl W. (Pittsburgh, PA)

    1999-01-01T23:59:59.000Z

    A warning system is provided for a mobile working machine to alert an individual of a potentially dangerous condition in the event the individual strays into a hazardous working zone of the machine. The warning system includes a transmitter mounted on the machine and operable to generate a uniform magnetic field projecting beyond an outer periphery of the machine in defining a hazardous working zone around the machine during operation thereof. A receiver, carried by the individual and activated by the magnetic field, provides an alarm signal to alert the individual when he enters the hazardous working zone of the machine.

  7. Modeling of the AISI Two-Zone Smelter, Part II: Physical Modeling and the AISI Pilot Plant Trials

    SciTech Connect (OSTI)

    Keller, Joseph George; Zhang, X.; Fuehan, R. J.; Vassilicos, A.; Sarma, B.

    2001-06-01T23:59:59.000Z

    Physical modeling experiments were conducted for the American Iron and Steel Institute (AISI) two-zone smelter process. The effects of geometrical and operating parameters on backmixing flow rates were investigated. It was found that the driving force for a backmixing flow in the AISI smelter comes from gas stirring in a liquid bath. The backmixing flow rate in the AISI smelter is proportional to a bath depth and an opening area of a barrier. Based on the results of the physical modeling experiments, a dimensional analysis was performed to extrapolate the water modeling results to the operating conditions in the AISI pilot plant. Copper tracer trials were conducted at the AISI pilot plant to investigate the backmixing flow of the AISI two-zone smelter process. The results obtained from the pilot plant trials and the water modeling experiments were compared.

  8. Emission Zone Control in Blue Organic Electrophosphorescent Devices...

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

    Zone Control in Blue Organic Electrophosphorescent Devices Through Chemical Modification of Host Materials . Emission Zone Control in Blue Organic Electrophosphorescent Devices...

  9. Modeling-Computer Simulations At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Modeling-Computer Simulations At Central Nevada Seismic Zone Region (Biasi, Et Al., 2009) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region...

  10. Reference Buildings by Climate Zone and Representative City:...

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

    Reference Buildings by Climate Zone and Representative City: 4B Albuquerque, New Mexico Reference Buildings by Climate Zone and Representative City: 4B Albuquerque, New...

  11. Reference Buildings by Climate Zone and Representative City:...

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

    More Documents & Publications Reference Buildings by Climate Zone and Representative City: 5B Boulder, Colorado Reference Buildings by Climate Zone and Representative...

  12. Reference Buildings by Climate Zone and Representative City:...

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

    More Documents & Publications Reference Buildings by Climate Zone and Representative City: 4C Seattle, Washington Reference Buildings by Climate Zone and Representative...

  13. Reference Buildings by Climate Zone and Representative City:...

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

    More Documents & Publications Reference Buildings by Climate Zone and Representative City: 6B Helena, Montana Reference Buildings by Climate Zone and Representative...

  14. Reference Buildings by Climate Zone and Representative City:...

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

    More Documents & Publications Reference Buildings by Climate Zone and Representative City: 8 Fairbanks, Alaska Reference Buildings by Climate Zone and Representative...

  15. Reference Buildings by Climate Zone and Representative City:...

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

    More Documents & Publications Reference Buildings by Climate Zone and Representative City: 5A Chicago, Illinois Reference Buildings by Climate Zone and Representative...

  16. Reference Buildings by Climate Zone and Representative City:...

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

    More Documents & Publications Reference Buildings by Climate Zone and Representative City: 3B Las Vegas, Nevada Reference Buildings by Climate Zone and Representative...

  17. Reference Buildings by Climate Zone and Representative City:...

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

    More Documents & Publications Reference Buildings by Climate Zone and Representative City: 4A Baltimore, Maryland Reference Buildings by Climate Zone and Representative...

  18. Paesaggio ed economia delle zone rurali Tiziano Tempesta

    E-Print Network [OSTI]

    Tempesta, Tiziano

    Paesaggio ed economia delle zone rurali Tiziano Tempesta Dipartimento Territorio e Sistemi Agroforestali Università di Padova Estratto da : Tempesta T. (2012), Paesaggio ed economia delle zone rurali

  19. Development of Characterization Technology for Fault Zone Hydrology

    E-Print Network [OSTI]

    Karasaki, Kenzi

    2010-01-01T23:59:59.000Z

    TECHNOLOGY FOR FAULT ZONE HYDROLOGY Kenzi Karasaki Lawrencefor characterizing the hydrology of fault zones, recognizingstructure of faults to hydrology, that it still may be

  20. Geographic Information System At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    Zone Region (Laney, 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Geographic Information System Activity...

  1. Geodetic Survey At Walker-Lane Transitional Zone Region (Blewitt...

    Open Energy Info (EERE)

    Zone Region (Blewitt Et Al, 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Geodetic Survey Activity Date...

  2. Compound and Elemental Analysis At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    Zone Region (Coolbaugh, Et Al., 2010) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Compound and Elemental Analysis...

  3. Teleseismic-Seismic Monitoring At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    Zone Region (Biasi, Et Al., 2008) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Teleseismic-Seismic Monitoring Activity...

  4. Field Mapping At Walker-Lane Transitional Zone Region (Blewitt...

    Open Energy Info (EERE)

    Zone Region (Blewitt Et Al, 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Field Mapping Activity Date Usefulness...

  5. AltaRock Energy Announces Successful Multiple-Zone Stimulation...

    Office of Environmental Management (EM)

    Announces Successful Multiple-Zone Stimulation of Well at the Newberry Enhanced Geothermal Systems Demonstration AltaRock Energy Announces Successful Multiple-Zone Stimulation...

  6. Reference Buildings by Climate Zone and Representative City:...

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

    akfairbankspre1980v1-47-2.zip More Documents & Publications Reference Buildings by Climate Zone and Representative City: 8 Fairbanks, Alaska Reference Buildings by Climate Zone...

  7. Vadose Zone Soil Moisture Wicking Using Super Absorbent Polymers...

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

    Vadose Zone Soil Moisture Wicking Using Super Absorbent Polymers. Vadose Zone Soil Moisture Wicking Using Super Absorbent Polymers. Abstract: Super-absorbent polymers (SAPs) have...

  8. Perched-Water Analysis Related to Deep Vadose Zone Contaminant...

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

    Perched-Water Analysis Related to Deep Vadose Zone Contaminant Transport and Impact to Groundwater. Perched-Water Analysis Related to Deep Vadose Zone Contaminant Transport and...

  9. DOE New Madrid Seismic Zone Electric Utility Workshop Summary...

    Office of Environmental Management (EM)

    New Madrid Seismic Zone Electric Utility Workshop Summary Report - August 2010 DOE New Madrid Seismic Zone Electric Utility Workshop Summary Report - August 2010 The DOE New Madrid...

  10. Compound and Elemental Analysis At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Central Nevada Seismic Zone Region (Laney, 2005) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Compound and Elemental...

  11. High energy density redox flow device

    DOE Patents [OSTI]

    Chiang, Yet-Ming; Carter, William Craig; Duduta, Mihai; Limthongkul, Pimpa

    2014-05-13T23:59:59.000Z

    Redox flow devices are described including a positive electrode current collector, a negative electrode current collector, and an ion-permeable membrane separating said positive and negative current collectors, positioned and arranged to define a positive electroactive zone and a negative electroactive zone; wherein at least one of said positive and negative electroactive zone comprises a flowable semi-solid composition comprising ion storage compound particles capable of taking up or releasing said ions during operation of the cell, and wherein the ion storage compound particles have a polydisperse size distribution in which the finest particles present in at least 5 vol % of the total volume, is at least a factor of 5 smaller than the largest particles present in at least 5 vol % of the total volume.

  12. Pine Tree Development Zones Program (Maine)

    Broader source: Energy.gov [DOE]

    The Pine Tree Development Zones program offers eligible businesses the chance to reduce, and sometimes eliminate, state taxes for up to ten years. There is a statutory requirement of hiring a...

  13. Innovation and Success in Planning and Zoning

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

    Planning and Zoning July 24, 2013 Why we're here: The Big Picture 2 SunShot Initiative SunShot Initiative 6kWh without subsidy 75% cost reduction by the end of the decade Price...

  14. Microbial oceanography of anoxic oxygen minimum zones

    E-Print Network [OSTI]

    Ulloa, Osvaldo

    Vast expanses of oxygen-deficient and nitrite-rich water define the major oxygen minimum zones (OMZs) of the global ocean. They support diverse microbial communities that influence the nitrogen economy of the oceans, ...

  15. Wave Patterns and Southern Hemisphere Convergence Zones 

    E-Print Network [OSTI]

    Ramotowski, Michelle R.

    2013-04-11T23:59:59.000Z

    Data from satellites and reanalysis products are analyzed to study the behavior of wave trains in the three major Southern Hemisphere Convergences zones: the South Pacific, the South Atlantic, and the South Indian. Using ...

  16. Kentucky Economic Opportunity Zone Program (KEOZ) (Kentucky)

    Broader source: Energy.gov [DOE]

    The Kentucky Economic Opportunity Zone Program (KEOZ) focuses on the development of areas with high unemployment and poverty levels. The program provides an income tax credit of up to 100% of the...

  17. Vadose Zone Transport Field Study: Status Report

    SciTech Connect (OSTI)

    Gee, Glendon W.; Ward, Anderson L.

    2001-11-30T23:59:59.000Z

    Studies were initiated at the Hanford Site to evaluate the process controlling the transport of fluids in the vadose zone and to develop a reliable database upon which vadose-zone transport models can be calibrated. These models are needed to evaluate contaminant migration through the vadose zone to underlying groundwaters at Hanford. A study site that had previously been extensively characterized using geophysical monitoring techniques was selected in the 200 E Area. Techniques used previously included neutron probe for water content, spectral gamma logging for radionuclide tracers, and gamma scattering for wet bulk density. Building on the characterization efforts of the past 20 years, the site was instrumented to facilitate the comparison of nine vadose-zone characterization methods: advanced tensiometers, neutron probe, electrical resistance tomography (ERT), high-resolution resistivity (HRR), electromagnetic induction imaging (EMI), cross-borehole radar (XBR), and cross-borehole seismic (XBS). Soil coring was used to obtain soil samples for analyzing ionic and isotopic tracers.

  18. Zone heated diesel particulate filter electrical connection

    DOE Patents [OSTI]

    Gonze, Eugene V. (Pinckney, MI); Paratore, Jr., Michael J. (Howell, MI)

    2010-03-30T23:59:59.000Z

    An electrical connection system for a particulate filter is provided. The system includes: a particulate filter (PF) disposed within an outer shell wherein the PF is segmented into a plurality of heating zones; an outer mat disposed between the particulate filter and the outer shell; an electrical connector coupled to the outer shell of the PF; and a plurality of printed circuit connections that extend along the outer surface of the PF from the electrical connector to the plurality of heating zones.

  19. Treating nahcolite containing formations and saline zones

    DOE Patents [OSTI]

    Vinegar, Harold J

    2013-06-11T23:59:59.000Z

    A method for treating a nahcolite containing subsurface formation includes removing water from a saline zone in or near the formation. The removed water is heated using a steam and electricity cogeneration facility. The heated water is provided to the nahcolite containing formation. A fluid is produced from the nahcolite containing formation. The fluid includes at least some dissolved nahcolite. At least some of the fluid is provided to the saline zone.

  20. Zone methods and the fermion sign problem

    E-Print Network [OSTI]

    Dean Lee

    2002-09-03T23:59:59.000Z

    We review a recently proposed approach to the problem of alternating signs for fermionic many body Monte Carlo simulations in finite temperature simulations. We derive an estimate for fermion wandering lengths and introduce the notion of permutation zones, special regions of the lattice where identical fermions may interchange and outside of which they may not. Using successively larger permutation zones, one can extrapolate to obtain thermodynamic observables in regimes where direct simulation is impossible.

  1. Dry Transfer Facility #1 - Ventilation Confinement Zoning Analysis

    SciTech Connect (OSTI)

    K.D. Draper

    2005-03-23T23:59:59.000Z

    The purpose of this analysis is to establish the preliminary Ventilation Confinement Zone (VCZ) for the Dry Transfer Facility (DTF). The results of this document is used to determine the air quantities for each VCZ that will eventually be reflected in the development of the Ventilation Flow Diagrams. The calculations contained in this document were developed by D and E/Mechanical-HVAC and are intended solely for the use of the D and E/Mechanical-HVAC department in its work regarding the HVAC system for the Dry Transfer Facility. Yucca Mountain Project personnel from the D and E/Mechanical-HVAC department should be consulted before use of the calculation for purposes other than those stated herein or used by individuals other than authorized personnel in D and E/Mechanical-HVAC department.

  2. Radionuclide Transport in Fracture-Granite Interface Zones

    SciTech Connect (OSTI)

    Hu, Q; Mori, A

    2007-09-12T23:59:59.000Z

    In situ radionuclide migration experiments, followed by excavation and sample characterization, were conducted in a water-conducting shear zone at the Grimsel Test Site (GTS) in Switzerland to study diffusion paths of radionuclides in fractured granite. In this work, we employed a micro-scale mapping technique that interfaces laser ablation sampling with inductively coupled plasma-mass spectrometry (LA/ICP-MS) to measure the fine-scale (micron-range) distribution of actinides ({sup 234}U, {sup 235}U, and {sup 237}Np) in the fracture-granite interface zones. Long-lived {sup 234}U, {sup 235}U, and {sup 237}Np were detected in flow channels, as well as in the adjacent rock matrix, using the sensitive, feature-based mapping of the LA/ICP-MS technique. The injected sorbing actinides are mainly located within the advective flowing fractures and the immediately adjacent regions. The water-conducting fracture studied in this work is bounded on one side by mylonite and the other by granitic matrix regions. These actinides did not penetrate into the mylonite side as much as the relatively higher-porosity granite matrix, most likely due to the low porosity, hydraulic conductivity, and diffusivity of the fracture wall (a thickness of about 0.4 mm separates the mylonite region from the fracture) and the mylonite region itself. Overall, the maximum penetration depth detected with this technique for the more diffusive {sup 237}Np over the field experimental time scale of about 60 days was about 10 mm in the granitic matrix, illustrating the importance of matrix diffusion in retarding radionuclide transport from the advective fractures. Laboratory tests and numerical modeling of radionuclide diffusion into granitic matrix was conducted to complement and help interpret the field results. Measured apparent diffusivity of multiple tracers in granite provided consistent predictions for radionuclide transport in the fractured granitic rock.

  3. Heat-flow reconnaissance of the Gulf Coastal Plain

    SciTech Connect (OSTI)

    Smith, D.L.; Shannon, S.S. Jr.

    1982-04-01T23:59:59.000Z

    Most of the 46 new values of heat flow determined for the Gulf Coastal Plain are in the low to normal range, but heat-flow values averaging 1.8 heat-flow unit (HFU) were obtained in Claiborne, Ouachita, and Union parishes, Louisiana. Moreover, a zone of relatively high heat-flow values and steep thermal gradients (35 to 46/sup 0/C/km) extends from northern Louisiana into southwestern Mississippi. Also near Pensacola, Florida, temperatures of 50/sup 0/C at 1-km depth have been extrapolated from thermal gradients. Future development of low-grade geothermal resources may be warranted in these areas.

  4. Solar cycle variations of large scale flows in the Sun

    E-Print Network [OSTI]

    Sarbani Basu; H. M. Antia

    2000-01-17T23:59:59.000Z

    Using data from the Michelson Doppler Imager (MDI) instrument on board the Solar and Heliospheric Observatory (SOHO), we study the large-scale velocity fields in the outer part of the solar convection zone using the ring diagram technique. We use observations from four different times to study possible temporal variations in flow velocity. We find definite changes in both the zonal and meridional components of the flows. The amplitude of the zonal flow appears to increase with solar activity and the flow pattern also shifts towards lower latitude with time.

  5. Nonlinear elasto-plastic model for dense granular flow

    E-Print Network [OSTI]

    Ken Kamrin

    2009-05-07T23:59:59.000Z

    This work proposes a model for granular deformation that predicts the stress and velocity profiles in well-developed dense granular flows. Recent models for granular elasticity (Jiang and Liu 2003) and rate-sensitive plastic flow (Jop et al. 2006) are reformulated and combined into one universal granular continuum law, capable of predicting flowing regions and stagnant zones simultaneously in any arbitrary 3D flow geometry. The unification is performed by justifying and implementing a Kroner-Lee elasto-plastic decomposition, with care taken to ensure certain continuum physical principles are necessarily upheld. The model is then numerically implemented in multiple geometries and results are compared to experiments and discrete simulations.

  6. Inductively coupled plasma torch with laminar flow cooling

    DOE Patents [OSTI]

    Rayson, Gary D. (Las Cruces, NM); Shen, Yang (Las Cruces, NM)

    1991-04-30T23:59:59.000Z

    An improved inductively coupled gas plasma torch. The torch includes inner and outer quartz sleeves and tubular insert snugly fitted between the sleeves. The insert includes outwardly opening longitudinal channels. Gas flowing through the channels of the insert emerges in a laminar flow along the inside surface of the outer sleeve, in the zone of plasma heating. The laminar flow cools the outer sleeve and enables the torch to operate at lower electrical power and gas consumption levels additionally, the laminar flow reduces noise levels in spectroscopic measurements of the gaseous plasma.

  7. FRESNEL-ZONE MEASUREMENT AND ANALYSIS OF A DUAL-

    E-Print Network [OSTI]

    Collings, Iain B.

    FRESNEL-ZONE MEASUREMENT AND ANALYSIS OF A DUAL- POLARIZED METEOROLOGICAL RADAR ANTENNA D.B. HaymanBi gain Horizontal and vertical polarizations #12;Range Length 4 m9 2 3 4 = D Fresnel Zone Criterion Data Corrected Fresnel Zone Data Aperture Data Far Field Data Raw Fresnel Zone Data Mask D+2 Fourier

  8. Zoned electrical heater arranged in spaced relationship from particulate filter

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI

    2011-11-15T23:59:59.000Z

    A system comprises a particulate matter (PM) filter that comprises an upstream end for receiving exhaust gas and a downstream end. A zoned heater is arranged spaced from the upstream end and comprises N zones, where N is an integer greater than one, wherein each of the N zones comprises M sub-zones, where M is an integer greater than one. A control module selectively activates at least a selected one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones and deactivates non-selected ones of the N zones.

  9. The influence of small stresses on the dynamics of glaciers and subduction zones

    E-Print Network [OSTI]

    Walter, Jacob Ineman

    2012-01-01T23:59:59.000Z

    in the Mexican subduction zone, Geofisica Internacional 49Mexican subduction zone, Geofisica Internacional 49 Klein,

  10. Problem of Vain Energy Consumption in a VAV Air Conditioning System Shared By an Inner Zone and Exterior Zone

    E-Print Network [OSTI]

    Wenji, G.; Ling, C.; Dongdong, L.; Mei, S.; Li, Z.

    2006-01-01T23:59:59.000Z

    In northern China, there are a large number of space buildings divided in inner zone and exterior zone based on usage requirements. The exterior zone needs to be heated in winter and cooled in summer, while the inner zone needs to be cooled both...

  11. TSPA Model for the Yucca Mountain Unsaturated Zone

    SciTech Connect (OSTI)

    M.L. Wilson; C.K. Ho

    2001-12-12T23:59:59.000Z

    Yucca Mountain, Nevada, is being considered as a potential site for a repository for spent nuclear fuel and high-level radioactive waste. Total-system performance-assessment (TSPA) calculations are performed to evaluate the safety of the site. Such calculations require submodels for all important engineered and natural components of the disposal system. There are five submodels related to the unsaturated zone: climate, infiltration, mountain-scale flow of water, seepage into emplacement drifts, and radionuclide transport. For each of these areas, models have been developed and implemented for use in TSPA. The climate model is very simple (a set of climate states have been deduced from paleoclimate data, and the times when climate changes occur in the future have been estimated), but the other four models make use of complex process models involving time-consuming computer runs. An important goal is to evaluate the impact of uncertainties (e.g., incomplete knowledge of the site) on the estimates of potential repository performance, so particular attention is given to the key uncertainties for each area. Uncertainties in climate, infiltration, and mountain-scale flow are represented in TSPA simulations by means of discrete high, medium, and low cases, Uncertainties in seepage and radionuclide transport are represented by means of continuous probability distributions for several key parameters.

  12. TSPA Model for the Yucca Mountain Unsaturated Zone

    SciTech Connect (OSTI)

    Wilson, M. L.; Ho, C. K.

    2002-02-26T23:59:59.000Z

    Yucca Mountain, Nevada, is being considered as a potential site for a repository for spent nuclear fuel and high-level radioactive waste. Total-system performance-assessment (TSPA) calculations are performed to evaluate the safety of the site. Such calculations require submodels for all important engineered and natural components of the disposal system. There are five submodels related to the unsaturated zone: climate, infiltration, mountain-scale flow of water, seepage into emplacement drifts, and radionuclide transport. For each of these areas, models have been developed and implemented for use in TSPA. The climate model is very simple (a set of climate states have been deduced from paleoclimate data, and the times when climate changes occur in the future have been estimated), but the other four models make use of complex process models involving time-consuming computer runs. An important goal is to evaluate the impact of uncertainties (e.g., incomplete knowledge of the site) on the estimates of potential repository performance, so particular attention is given to the key uncertainties for each area. Uncertainties in climate, infiltration, and mountain-scale flow are represented in TSPA simulations by means of discrete high, medium, and low cases. Uncertainties in seepage and radionuclide transport are represented by means of continuous probability distributions for several key parameters.

  13. Fluidized bed boiler convective zone tube replacement

    SciTech Connect (OSTI)

    Not Available

    1991-03-21T23:59:59.000Z

    A major problem with the Georgetown University Atomspheric-Pressure, Fluidized-Bed Combustor-Boiler (GU AFBC) experienced during the first six years of operation was tube erosion. Previous corrective measures for in-bed tube erosion appeared to be effective, but excessive wear of the convective zone tubes was still occurring, and the entire heat transfer tube bundle in the boiler required replacement. In the planned project,the eroded tubes would be replaced, and the convective zone modified to eliminate the problem. Progress is discussed.

  14. Spatial analysis of hypocenter to fault relationships for determining fault process zone width in Japan.

    SciTech Connect (OSTI)

    Arnold, Bill Walter; Roberts, Barry L.; McKenna, Sean Andrew; Coburn, Timothy C. (Abilene Christian University, Abilene, TX)

    2004-09-01T23:59:59.000Z

    Preliminary investigation areas (PIA) for a potential repository of high-level radioactive waste must be evaluated by NUMO with regard to a number of qualifying factors. One of these factors is related to earthquakes and fault activity. This study develops a spatial statistical assessment method that can be applied to the active faults in Japan to perform such screening evaluations. This analysis uses the distribution of seismicity near faults to define the width of the associated process zone. This concept is based on previous observations of aftershock earthquakes clustered near active faults and on the assumption that such seismic activity is indicative of fracturing and associated impacts on bedrock integrity. Preliminary analyses of aggregate data for all of Japan confirmed that the frequency of earthquakes is higher near active faults. Data used in the analysis were obtained from NUMO and consist of three primary sources: (1) active fault attributes compiled in a spreadsheet, (2) earthquake hypocenter data, and (3) active fault locations. Examination of these data revealed several limitations with regard to the ability to associate fault attributes from the spreadsheet to locations of individual fault trace segments. In particular, there was no direct link between attributes of the active faults in the spreadsheet and the active fault locations in the GIS database. In addition, the hypocenter location resolution in the pre-1983 data was less accurate than for later data. These pre-1983 hypocenters were eliminated from further analysis.

  15. Using Qualified Energy Conservation Bonds (QECBs) to Fund a Residential Energy Efficiency Loan Program: Case Study on Saint Louis County, MO

    SciTech Connect (OSTI)

    Zimring, Mark

    2011-06-23T23:59:59.000Z

    Qualified Energy Conservation Bonds (QECBs) are federally-subsidized debt instruments that enable state, tribal, and local government issuers to borrow money to fund a range of qualified energy conservation projects. QECBs offer issuers very attractive borrowing rates and long terms, and can fund low-interest energy efficiency loans for home and commercial property owners. Saint Louis County, MO recently issued over $10 million of QECBs to finance the Saint Louis County SAVES residential energy efficiency loan program. The county's experience negotiating QECB regulations and restrictions can inform future issuers.

  16. Study of the Natural Gas Hydrate 'Trap Zone' and the Methane Hydrate Potential in the Sverdrup Basin, Canada

    SciTech Connect (OSTI)

    Majorowicz, J. A. [Northern Geothermal Consult. (Canada)], E-mail: majorowi@show.ca; Hannigan, P. K.; Osadetz, K. G. [Geological Survey of Canada, Calgary (Canada)

    2002-06-15T23:59:59.000Z

    The methane hydrate stability zone beneath Sverdrup Basin has developed to a depth of 2 km underneath the Canadian Arctic Islands and 1 km below sea level under the deepest part of the inter-island sea channels. It is not, however, a continuous zone. Methane hydrates are detected in this zone, but the gas hydrate/free gas contact occurs rarely. Interpretation of well logs indicate that methane hydrate occurs within the methane stability zone in 57 of 150 analyzed wells. Fourteen wells show the methane hydrate/free gas contact. Analysis of the distribution of methane hydrate and hydrate/gas contact occurrences with respect to the present methane hydrate stability zone indicate that, in most instances, the detected methane hydrate occurs well above the base of methane hydrate stability. This relationship suggests that these methane hydrates were formed in shallower strata than expected with respect to the present hydrate stability zone from methane gases which migrated upward into hydrate trap zones. Presently, only a small proportion of gas hydrate occurrences occur in close proximity to the base of predicted methane hydrate stability. The association of the majority of detected hydrates with deeply buried hydrocarbon discoveries, mostly conventional natural gas accumulations, or mapped seismic closures, some of which are dry, located in structures in western and central Sverdrup Basin, indicate the concurring relationship of hydrate occurrence with areas of high heat flow. Either present-day or paleo-high heat flows are relevant. Twenty-three hydrate occurrences coincide directly with underlying conventional hydrocarbon accumulations. Other gas hydrate occurrences are associated with structures filled with water with evidence of precursor hydrocarbons that were lost because of upward leakage.

  17. Standard guide for evaluating and qualifying oilfield and refinery corrosion inhibitors in the laboratory

    E-Print Network [OSTI]

    American Society for Testing and Materials. Philadelphia

    2006-01-01T23:59:59.000Z

    1.1 This guide covers some generally accepted laboratory methodologies that are used for evaluating corrosion inhibitors for oilfield and refinery applications in well defined flow conditions. 1.2 This guide does not cover detailed calculations and methods, but rather covers a range of approaches which have found application in inhibitor evaluation. 1.3 Only those methodologies that have found wide acceptance in inhibitor evaluation are considered in this guide. 1.4 This guide is intended to assist in the selection of methodologies that can be used for evaluating corrosion inhibitors. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.

  18. Thin discs, thick discs and transition zones

    E-Print Network [OSTI]

    Guillaume Dubus

    2002-06-13T23:59:59.000Z

    Accretion onto a compact object must occur through a disc when the material has some initial angular momentum. Thin discs and the thicker low radiative efficiency accretion flows are solutions to this problem that have been widely studied and applied. This is an introduction to these accretion flows within the context of X-ray binaries and cataclysmic variables.

  19. Cross-flow electrochemical reactor cells, cross-flow reactors, and use of cross-flow reactors for oxidation reactions

    DOE Patents [OSTI]

    Balachandran, Uthamalingam (Hinsdale, IL); Poeppel, Roger B. (Glen Ellyn, IL); Kleefisch, Mark S. (Naperville, IL); Kobylinski, Thaddeus P. (Lisle, IL); Udovich, Carl A. (Joliet, IL)

    1994-01-01T23:59:59.000Z

    This invention discloses cross-flow electrochemical reactor cells containing oxygen permeable materials which have both electron conductivity and oxygen ion conductivity, cross-flow reactors, and electrochemical processes using cross-flow reactor cells having oxygen permeable monolithic cores to control and facilitate transport of oxygen from an oxygen-containing gas stream to oxidation reactions of organic compounds in another gas stream. These cross-flow electrochemical reactors comprise a hollow ceramic blade positioned across a gas stream flow or a stack of crossed hollow ceramic blades containing a channel or channels for flow of gas streams. Each channel has at least one channel wall disposed between a channel and a portion of an outer surface of the ceramic blade, or a common wall with adjacent blades in a stack comprising a gas-impervious mixed metal oxide material of a perovskite structure having electron conductivity and oxygen ion conductivity. The invention includes reactors comprising first and second zones seprated by gas-impervious mixed metal oxide material material having electron conductivity and oxygen ion conductivity. Prefered gas-impervious materials comprise at least one mixed metal oxide having a perovskite structure or perovskite-like structure. The invention includes, also, oxidation processes controlled by using these electrochemical reactors, and these reactions do not require an external source of electrical potential or any external electric circuit for oxidation to proceed.

  20. Coordinator of Operations The University of Georgia is seeking a qualified candidate to serve as the Coordinator of Operations with the

    E-Print Network [OSTI]

    Arnold, Jonathan

    with the University of Georgia. The Archway Partnership has received funding from the Board of Regents to continueCoordinator of Operations The University of Georgia is seeking a qualified candidate to serve to bring the University of Georgia's expertise to communities and to facilitate community interaction

  1. Guidelines on Employment References Effective July 1, 1991, Florida Statute 768.095 provides qualified immunity from civil liability for employers who

    E-Print Network [OSTI]

    Wu, Shin-Tson

    Guidelines on Employment References Effective July 1, 1991, Florida Statute 768.095 provides qualified immunity from civil liability for employers who disclose information relating to the job performance of former employees to the former employees' prospective employers. The statute reads in full: 768

  2. anatolian fault zone: Topics by E-print Network

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

    across the Mudurnu segment of the North Anatolian Fault Zone (NAFZ) in northwestern Turkey Ben-Zion, Yehuda 2 Velocity contrast across the 1944 rupture zone of the North...

  3. oZONE Faculty and Staff Enrolling Students

    E-Print Network [OSTI]

    Oklahoma, University of

    oZONE Faculty and Staff Enrolling Students Log in to ozone.ou.edu. Click the Advising tab. Please lecture schedule CRN ­ Course Reference Number In oZONE the Registration Add Errors will display one

  4. Agricultural Zoning as a Farmland Protection Tool in Georgia

    E-Print Network [OSTI]

    Rosemond, Amy Daum

    Agricultural Zoning as a Farmland Protection Tool in Georgia Prepared by: Emily Franzen, Staff Attorney UGA River Basin Center 706-583-0282 emilyf@uga.edu Table of Contents Introduction to Agricultural Exclusive Agricultural Zoning

  5. Incentive zoning and environmental quality in Boston's Fenway neighborhood

    E-Print Network [OSTI]

    DeFlorio, Joshua (Joshua C.)

    2007-01-01T23:59:59.000Z

    A density bonus, also called incentive zoning, is a conditional liberalization of zoning regulations, allowing a real estate development to exceed as-of-right density limits in exchange for the in-kind provision or purchase ...

  6. oZONE Faculty and Staff Exporting and Importing Grades

    E-Print Network [OSTI]

    Oklahoma, University of

    oZONE Faculty and Staff Exporting and Importing Grades Exporting/Importing Grades in oZONE The new - Log in to ozone.ou.edu using your OU Net ID (4+4) as you would in any other OU system. Click Importing Grades from a Exported oZONE template If you exported a course template from the oZONE grading

  7. Geothermometry At Central Nevada Seismic Zone Region (Shevenell...

    Open Energy Info (EERE)

    ENERGYGeothermal Home Exploration Activity: Geothermometry At Central Nevada Seismic Zone Region (Shevenell & De Rocher, 2005) Exploration Activity Details Location...

  8. Geographic Information System At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Home Exploration Activity: Geographic Information System At Central Nevada Seismic Zone Region (Laney, 2005) Exploration Activity Details Location Central Nevada...

  9. Visualization of microcrack anisotropy in granite affected by afault zone, using confocal laser scanning microscope

    SciTech Connect (OSTI)

    Onishi, Celia T.; Shimizu, Ichiko

    2004-01-02T23:59:59.000Z

    Brittle deformation in granite can generate a fracture system with different patterns. Detailed fracture analyses at both macroscopic and microscopic scales, together with physical property data from a drill-core, are used to classify the effects of reverse fault deformation in four domains: (1) undeformed granite, (2) fractured granite with cataclastic seams, (3) fractured granite from the damage zone, and (4) foliated cataclasite from the core of the fault. Intact samples from two orthogonal directions, horizontal (H) and vertical (V), from the four domains indicate a developing fracture anisotropy toward the fault, which is highly developed in the damage zone. As a specific illustration of this phenomenon, resin impregnation, using a confocal laser scanning microscope (CLSM) technique is applied to visualize the fracture anisotropy developed in the Toki Granite, Japan. As a result, microcrack networks have been observed to develop in H sections and elongate open cracks in V sections, suggesting that flow pathways can be determined by deformation.

  10. A Unified Cohesive Zone Approach to Model Ductile Brittle Transition in Reactor Pressure Vessel Steels

    SciTech Connect (OSTI)

    Pritam Chakraborty; S. Bulent Biner

    2014-08-01T23:59:59.000Z

    In this study, a unified cohesive zone model has been proposed to predict, Ductile to Brittle Transition, DBT, in Reactor Pressure Vessel, RPV, steels. A general procedure is described to obtain the Cohesive Zone Model, CZM, parameters for the different temperatures and fracture probabilities. In order to establish the full master-curve, the procedure requires three calibration points with one at the upper-shelf for ductile fracture and two for the fracture probabilities, Pf, of 5% and 95% at the lower-shelf. In the current study, these calibrations were carried out by utilizing the experimental fracture toughness values and flow curves. After the calibration procedure, the simulations of fracture behavior (ranging from completely unstable to stable crack extension behavior) in one inch thick compact tension specimens at different temperatures yielded values that were comparable to the experimental fracture toughness values, indicating the viability of such unified modeling approach.

  11. Low volume flow meter

    DOE Patents [OSTI]

    Meixler, Lewis D. (East Windsor, NJ)

    1993-01-01T23:59:59.000Z

    The low flow monitor provides a means for determining if a fluid flow meets a minimum threshold level of flow. The low flow monitor operates with a minimum of intrusion by the flow detection device into the flow. The electrical portion of the monitor is externally located with respect to the fluid stream which allows for repairs to the monitor without disrupting the flow. The electronics provide for the adjustment of the threshold level to meet the required conditions. The apparatus can be modified to provide an upper limit to the flow monitor by providing for a parallel electronic circuit which provides for a bracketing of the desired flow rate.

  12. Demonstration of 12 nm resolution Fresnel zone plate lens based soft x-ray microscopy

    E-Print Network [OSTI]

    Chao, W.

    2010-01-01T23:59:59.000Z

    of 12 nm Resolution Fresnel Zone Plate Lens based Soft X-raynanofabrication process for Fresnel zone plate lenses. Theoptical performance of Fresnel zone plate lens based imaging

  13. Radioactive waste disposal in thick unsaturated zones

    SciTech Connect (OSTI)

    Winograd, I.J.

    1981-06-26T23:59:59.000Z

    Portions of the Great Basin are undergoing crustal extension and have unsaturated zones as much as 600 meters thick. These areas contain multiple natural barriers capable of isolating solidified toxic wastes from the biosphere for tens of thousands to perhaps hundreds of thousands of years. An example of the potential utilization of such arid zone environments for toxic waste isolation is the burial of transuranic radioactive wastes at relatively shallow depths (15 to 100 meters) in Sedan Crater, Yucca Flat, Nevada. The volume of this man-made crater is several times that of the projected volume of such wastes to the year 2000. Disposal in Sedan Crater could be accomplished at a savings on the order of $0.5 billion, in comparison with current schemes for burial of such wastes in mined repositories at depths of 600 to 900 meters, and with an apparently equal likelihood of waste isolation from the biosphere. 4 figures.

  14. Permutation zones and the fermion sign problem

    E-Print Network [OSTI]

    Dean Lee

    2002-10-22T23:59:59.000Z

    We present a new approach to the problem of alternating signs for fermionic many body Monte Carlo simulations. We demonstrate that the exchange of identical fermions is typically short-ranged even when the underlying physics is dominated by long distance correlations. We show that the exchange process has a maximum characteristic range of sqrt[2*(1-f)*beta*h] lattice sites, where beta is the inverse temperature, h is the hopping parameter, and f is the filling fraction. We introduce the notion of permutation zones, special regions of the lattice where identical fermions may interchange and outside of which they may not. Using successively larger permutation zones, one can extrapolate to obtain thermodynamic observables in regimes where direct simulation is impossible.

  15. Surf zone eddies coupled with rip current morphology

    E-Print Network [OSTI]

    Kirby, James T.

    Surf zone eddies coupled with rip current morphology Jamie H. MacMahan Oceanography Department. Thornton, and T. P. Stanton (2004), Surf zone eddies coupled with rip current morphology, J. Geophys. Res) surf zone eddies (SZEs) were observed on a beach composed of shore-connected shoals with quasi

  16. oZONE Faculty and Staff Course Overrides

    E-Print Network [OSTI]

    Oklahoma, University of

    oZONE Faculty and Staff Course Overrides and the Registration Add Errors They Resolve Departments of the overrides within the registration component of oZONE. We have, however, retained a few instances where some. There is also a link to this document on the Student Training and Instructions page in the oZONE info site

  17. Form-based zoning : what place is this code?

    E-Print Network [OSTI]

    Mehta, Shilpa, M.C.P. Massachusetts Institute of Technology

    2006-01-01T23:59:59.000Z

    Form-based zoning is a relatively recent innovation in zoning reform. Many cities in the U.S. have adopted form-based codes in lieu of or as a supplement to conventional zoning and many more are in the process of studying ...

  18. Diffraction theory for azimuthally structured Fresnel zone plate

    E-Print Network [OSTI]

    Jahns, Jürgen

    Diffraction theory for azimuthally structured Fresnel zone plate Thordis Vierke and Jürgen Jahns A conventional Fresnel zone plate (FZP) consists of concentric rings with an alternating binary transmission of zero and one. In an azimuthally structured Fresnel zone plate (aFZP), the light transmission

  19. Comprehensive focusing analysis of various Fresnel zone plates

    E-Print Network [OSTI]

    Jahns, Jürgen

    Comprehensive focusing analysis of various Fresnel zone plates Qing Cao and Ju¨rgen Jahns Optische and the linear superposition principle, of the focusing performances of various Fresnel zone plates. Many similarity between Fresnel zone plates and multilevel diffractive lenses, most of the obtained results

  20. Modified Fresnel zone plates that produce sharp Gaussian focal spots

    E-Print Network [OSTI]

    Jahns, Jürgen

    Modified Fresnel zone plates that produce sharp Gaussian focal spots Qing Cao and Ju¨rgen Jahns Fresnel zone plate that can produce an approximate Gaussian focal spot is proposed for the focusing of 7.7 nm can be produced by a modified Fresnel zone plate with a minimum structure size of 30 nm

  1. a bStomach Lung cell zone Clara cell

    E-Print Network [OSTI]

    Krasnow, Mark A.

    a bStomach Lung Chief-cell zone Stem-cell zone Mucus- cell zone Clara cell Tracheal airway Basal independent studies show that, if push comes to shove, differentiated cells of the stomach and lung can act and the other by Stange et al.2 published in Cell, find that followingdepletionofstemcellsinthestomach or lung

  2. Diesel particulate filter with zoned resistive heater

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI

    2011-03-08T23:59:59.000Z

    A diesel particulate filter assembly comprises a diesel particulate filter (DPF) and a heater assembly. The DPF filters a particulate from exhaust produced by an engine. The heater assembly has a first metallic layer that is applied to the DPF, a resistive layer that is applied to the first metallic layer, and a second metallic layer that is applied to the resistive layer. The second metallic layer is etched to form a plurality of zones.

  3. Capillary zone electrophoresis-mass spectrometer interface

    DOE Patents [OSTI]

    D'Silva, Arthur (Ames, IA)

    1996-08-06T23:59:59.000Z

    A device for providing equal electrical potential between two loci unconnected by solid or liquid electrical conducts is provided. The device comprises a first electrical conducting terminal, a second electrical conducting terminal connected to the first terminal by a rigid dielectric structure, and an electrically conducting gas contacting the first and second terminals. This device is particularly suitable for application in the electrospray ionization interface between a capillary zone electrophoresis apparatus and a mass spectrometer.

  4. Movement of VOCs through the vadose zone

    E-Print Network [OSTI]

    Patel, Pinakin K.

    1989-01-01T23:59:59.000Z

    chapter provides a summary and suggestions regarding applications and future modifications of this work. CHAPTER II LITERATURE REVIEW This chapter reviews the literature related to gaseous transport processes in the vadose zone. The first section... with both, analytical solutions and experimental results. While other numerical approaches are available, the method of characteristics appears to be one of the best and most general numerical methods for solving the transport equation. B. Diffusion...

  5. Capillary zone electrophoresis-mass spectrometer interface

    DOE Patents [OSTI]

    D`Silva, A.

    1996-08-06T23:59:59.000Z

    A device for providing equal electrical potential between two loci unconnected by solid or liquid electrical conductors is provided. The device comprises a first electrical conducting terminal, a second electrical conducting terminal connected to the first terminal by a rigid dielectric structure, and an electrically conducting gas contacting the first and second terminals. This device is particularly suitable for application in the electrospray ionization interface between a capillary zone electrophoresis apparatus and a mass spectrometer. 1 fig.

  6. Review of Literature on Terminal Box Control, Occupancy Sensing Technology and Multi-zone Demand Control Ventilation (DCV)

    SciTech Connect (OSTI)

    Liu, Guopeng; Dasu, Aravind R.; Zhang, Jian

    2012-03-01T23:59:59.000Z

    This report presents an overall review of the standard requirement, the terminal box control, occupancy sensing technology and DCV. There is system-specific guidance for single-zone systems, but DCV application guidance for multi-zone variable air volume (VAV) systems is not available. No real-world implementation case studies have been found using the CO2-based DCV. The review results also show that the constant minimum air flow set point causes excessive fan power consumption and potential simultaneous heating and cooling. Occupancy-based control (OBC) is needed for the terminal box in order to achieve deep energy savings. Key to OBC is a technology for sensing the actual occupancy of the zone served in real time. Several technologies show promise, but none currently fully meets the need with adequate accuracy and sufficiently low cost.

  7. Techniques for determining physical zones of influence

    SciTech Connect (OSTI)

    Hamann, Hendrik F; Lopez-Marrero, Vanessa

    2013-11-26T23:59:59.000Z

    Techniques for analyzing flow of a quantity in a given domain are provided. In one aspect, a method for modeling regions in a domain affected by a flow of a quantity is provided which includes the following steps. A physical representation of the domain is provided. A grid that contains a plurality of grid-points in the domain is created. Sources are identified in the domain. Given a vector field that defines a direction of flow of the quantity within the domain, a boundary value problem is defined for each of one or more of the sources identified in the domain. Each of the boundary value problems is solved numerically to obtain a solution for the boundary value problems at each of the grid-points. The boundary problem solutions are post-processed to model the regions affected by the flow of the quantity on the physical representation of the domain.

  8. Bacteria in shear flow

    E-Print Network [OSTI]

    Marcos, Ph.D. Massachusetts Institute of Technology

    2011-01-01T23:59:59.000Z

    Bacteria are ubiquitous and play a critical role in many contexts. Their environment is nearly always dynamic due to the prevalence of fluid flow: creeping flow in soil, highly sheared flow in bodily conduits, and turbulent ...

  9. Dispersed flow film boiling

    E-Print Network [OSTI]

    Yoder, Graydon L.

    1980-01-01T23:59:59.000Z

    Dispersed flow consists of small liquid droplets entrained in a flowing vapor. This flow regime can occur in cryogenic equipment, in steam generators, and during nuclear reactor loss of coolant accidents. A theoretical ...

  10. Multiphase flow calculation software

    DOE Patents [OSTI]

    Fincke, James R. (Idaho Falls, ID)

    2003-04-15T23:59:59.000Z

    Multiphase flow calculation software and computer-readable media carrying computer executable instructions for calculating liquid and gas phase mass flow rates of high void fraction multiphase flows. The multiphase flow calculation software employs various given, or experimentally determined, parameters in conjunction with a plurality of pressure differentials of a multiphase flow, preferably supplied by a differential pressure flowmeter or the like, to determine liquid and gas phase mass flow rates of the high void fraction multiphase flows. Embodiments of the multiphase flow calculation software are suitable for use in a variety of applications, including real-time management and control of an object system.

  11. Use of Polyphosphate to Decrease Uranium Leaching in Hanford 300 Area Smear Zone Sediments

    SciTech Connect (OSTI)

    Szecsody, James E.; Zhong, Lirong; Oostrom, Martinus; Vermeul, Vincent R.; Fruchter, Jonathan S.; Williams, Mark D.

    2012-09-30T23:59:59.000Z

    The primary objective of this study is to summarize the laboratory investigations performed to evaluate short- and long-term effects of phosphate treatment on uranium leaching from 300 area smear zone sediments. Column studies were used to compare uranium leaching in phosphate-treated to untreated sediments over a year with multiple stop flow events to evaluate longevity of the uranium leaching rate and mass. A secondary objective was to compare polyphosphate injection, polyphosphate/xanthan injection, and polyphosphate infiltration technologies that deliver phosphate to sediment.

  12. Investigation of static zones and wall slip through sequential ram extrusion of contrasting micro-crystalline cellulose-based pastes

    E-Print Network [OSTI]

    Bryan, M. P.; Rough, S. L.; Wilson, D. I.

    2014-08-23T23:59:59.000Z

    , or alternatively lubricate the shear flow of MCC par- ticles in the convergent zone. The force reduction could also be attributed to increased water availability in the MCC-graphite matrix. As the graphite particles do not ab- sorb water (in contrast to MCC... the walls of the simulation geometry and towards the convergent and corner regions. References [1] P. Forzatti, D. Ballardini, L. Sighicelli, Preparation and char- acterization of extruded monolithic ceramic catalysts, Catal- ysis Today 41 (1-3) (1998) 87...

  13. Hydrodynamic force characteristics in the splash zone

    SciTech Connect (OSTI)

    Daliri, M.R.; Haritos, N. [Univ. of Melbourne, Parkville, Victoria (Australia). Dept. of Civil and Environmental Engineering

    1996-12-31T23:59:59.000Z

    A comprehensive experimental study concerned with the hydrodynamic force characteristics of both rigid and compliant surface piercing cylinders, with a major focus on the local nature of these characteristics as realized in the splash zone and in the fully submerged zone immediately below this region, has been in progress at the University of Melbourne for the last three years. This paper concentrates on a portion of this study associated with uni-directional regular wave inputs with wave steepness (H/{lambda}) in the range 0.0005--0.1580 and Keulegan-Carpenter (KC) numbers in the range 2--15 which encompasses inertia force dominant (KC<5) to drag force significant conditions (5zone are higher and exhibit a mild frequency dependence in comparison with their corresponding counterparts for the fully submerged segments. For weakly nonlinear waves (H/{lambda}<0.1) only wave fluctuation is found to be important and any mild nonlinearities do not significantly affect the test model force response and consequently the force coefficient values. However, for relatively nonlinear waves (0.1

  14. GridZone | 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 beingZealand Jump to: navigation, search OpenEI ReferenceJump to:Information 9297484°,GreylockGridWiseGridZone

  15. Wetlands and Riparian Zones | 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 beingZealand Jump to:Ezfeedflag JumpID-fTri GlobalJump to:Westwood Renewables Jump to: navigation,Riparian Zones

  16. Deep Vadose Zone | Department of Energy

    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 33 111 1,613 122Commercial602 1,39732 DOE F 243.2Dashboards DashboardsDeep Vadose Zone Deep Vadose

  17. ZipZone Technologies | 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 YouKizildere IRaghuraji Agro IndustriesTownDells, Wisconsin: EnergyWyandanch,Eaga Solar LtdZhonghuiteZim'sZipZone

  18. Pellet Zone Ltd | 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 YouKizildere I Geothermal Pwer PlantMunhall,Missouri:EnergyOssian,Parle Biscuits PvtPawPearland,Peekskill,Pellet Zone Ltd

  19. Dolomitization by ground-water flow systems in carbonate platforms

    SciTech Connect (OSTI)

    Simms, M.

    1984-09-01T23:59:59.000Z

    Dolomite occurs throughout the subsurface of modern carbonate platforms such as the Bahamas. Groundwater flow systems must be responsible for delivery of reactants needed for dolomitization. Reflux, freshwater lens flows, and thermal convection are large-scale flow systems that may be widespread in active platforms. The author has evaluated some aspects of the dynamics and characteristics of these processes with ground-water flow theory and by scaled sandbox experiments. Reflux is not restricted to hypersaline brines, but can occur with bankwaters of only slightly elevated salinity such as those found on the Bahama Banks today (42%). The lack of evaporites in a stratigraphic section, therefore, does not rule out the possibility that reflux may have operated. Flows associated with freshwater lenses include flow in the lens, in the mixing zone, and in the seawater beneath and offshore of the lens. Upward transfer of seawater through the platform margins occurs when surrounding cold ocean water migrates into the platform and is heated. This type of thermal convection (Kohout convection) has been studied by Francis Kohout in south Florida. The ranges of mass flux of magnesium in these processes are all comparable and are all sufficient to account for young dolomites beneath modern platforms. Each process yields dolomitized zones of characteristic shape and location and perhaps may be distinguishable in ancient rocks. The concepts presented here may have application to exploration for dolomite reservoirs in the Gulf Coast and elsewhere.

  20. Theoretical and experimental studies of churn flow in vertical tubes. Final technical report

    SciTech Connect (OSTI)

    Not Available

    1986-01-27T23:59:59.000Z

    The pattern known as churn flow is a highly unsteady pattern with stochastic features and is extremely complex. However, calculations show that for many geothermal wells the condition of churn flow consists over much of the length of the two phase zone. Furthermore, it frequently exists at the surface so that design of separation equipment and surface piping depends on the accurate modelling of this type of flow. It has been the long term purpose of this project to develop physically based models for churn flow which can be used as a basis for predicting holdup, frictional loss and heat transfer rates for this flow pattern in geothermal systems. To achieve this end, it was necessary to develop new methods for measuring the time dependent characteristics of the flow and thus be able to uncover the basic physics of the flow. Models can then be developed based on this understanding which characterizes the flow and equations for holdup, friction and heat transfer evolved.

  1. Freshwater Flow Charts - 1995

    SciTech Connect (OSTI)

    Kaiper, G V

    2003-11-21T23:59:59.000Z

    This report covers the following: (1) Explanation of Charts Showing Freshwater Flow in 1995; (2) Estimated U.S. Freshwater Flow in 1995 (chart); (3) Estimated California Freshwater Flow in 1995 (chart); (4) Estimated New Mexico Freshwater Flow in 1995 (chart); and (5) Web locations and credits.

  2. Portable wastewater flow meter

    DOE Patents [OSTI]

    Hunter, Robert M. (320 S. Wilson Ave., Bozeman, MT 59715)

    1990-01-01T23:59:59.000Z

    A portable wastewater flow meter particularly adapted for temporary use at a single location in measuring the rate of liquid flow in a circular entrance conduit of a sewer manhole both under free flow and submerged, open channel conditions and under full pipe, surcharged conditions, comprising an apparatus having a cylindrical external surface and an inner surface that constricts the flow through the apparatus in such a manner that a relationship exists between (1) the difference between the static pressure head of liquid flowing through the entrance of the apparatus and the static pressure head of liquid flowing through the constriction, and (2) the rate of liquid flow through the apparatus.

  3. Portable wastewater flow meter

    DOE Patents [OSTI]

    Hunter, Robert M. (320 S. Wilson Ave., Bozeman, MT 59715)

    1999-02-02T23:59:59.000Z

    A portable wastewater flow meter particularly adapted for temporary use at a single location in measuring the rate of liquid flow in a circular entrance conduit of a sewer manhole both under free flow and submerged, open channel conditions and under fill pipe, surcharged conditions, comprising an apparatus having a cylindrical external surface and an inner surface that constricts the flow through the apparatus in such a manner that a relationship exists between (1) the difference between the static pressure head of liquid flowing through the entrance of the apparatus and the static pressure head of liquid flowing through the constriction, and (2) the rate of liquid flow through the apparatus.

  4. Thermal lens elimination by gradient-reduced zone coupling of optical beams

    DOE Patents [OSTI]

    Page, Ralph H. (San Ramon, CA); Beach, Raymond J. (Livermore, CA)

    2000-01-01T23:59:59.000Z

    A thermal gradient-reduced-zone laser includes a laser medium and an optically transparent plate with an index of refraction that is less than the index of refraction of the laser medium. The pump face of the laser medium is bonded to a surface of the optically transparent member. Pump light is directed through the transparent plate to optically pump the solid state laser medium. Heat conduction is mainly through the surface of the laser medium where the heat is introduced by the pump light. Heat flows in a direction opposite to that of the pump light because the side of the laser medium that is opposite to that of the pump face is not in thermal contact with a conductor and thus there is no heat flux (and hence, no temperature gradient), thus producing a thermal gradient-reduced zone. A laser cavity is formed around the laser medium such that laser light oscillating within the laser cavity reflects by total-internal-reflection from the interface between the pump face and the optically transparent plate and enters and exits through a thermal gradient-reduced zone.

  5. Microbial metatranscriptomics in a permanent marine oxygen minimum zone

    E-Print Network [OSTI]

    Stewart, Frank J.

    Simultaneous characterization of taxonomic composition, metabolic gene content and gene expression in marine oxygen minimum zones (OMZs) has potential to broaden perspectives on the microbial and biogeochemical dynamics ...

  6. Modeling-Computer Simulations At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Central Nevada Seismic Zone Geothermal Region Exploration Technique Modeling-Computer Simulations Activity Date Usefulness not indicated DOE-funding Unknown References J. W....

  7. Modeling-Computer Simulations At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Walker-Lane Transitional Zone Region (Biasi, Et Al., 2009) Exploration...

  8. Modeling-Computer Simulations At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Walker-Lane Transitional Zone Region (Pritchett, 2004) Exploration...

  9. Alteration And Geochemical Zoning In Bodie Bluff, Bodie Mining...

    Open Energy Info (EERE)

    Alteration And Geochemical Zoning In Bodie Bluff, Bodie Mining District, Eastern California Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article:...

  10. andean subduction zone: Topics by E-print Network

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

    Because subduction zones generate the largest earthquakes, seismic hazard assessment relies on understanding the degree to which slow earthquakes reduce the energy...

  11. Trace Element Geochemical Zoning in the Roosevelt Hot Springs...

    Open Energy Info (EERE)

    Capuano. 1980. Trace Element Geochemical Zoning in the Roosevelt Hot Springs Thermal Area, Utah. In: Transactions. GRC Annual Meeting; 09091980; Salt Lake City, UT. Salt...

  12. Innovation and Success in Planning and Zoning | Department of...

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

    summarizes several successful initiatives to implement solar-friendly planes and zoning codes. webinar072413planningzoning.pdf More Documents & Publications...

  13. Production from multiple zones of a tar sands formation

    DOE Patents [OSTI]

    Karanikas, John Michael; Vinegar, Harold J

    2013-02-26T23:59:59.000Z

    A method for treating a tar sands formation includes providing heat to at least part of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. The heat is allowed to transfer from the heaters to at least a portion of the formation. Fluids are produced from the formation through at least one production well that is located in at least two zones in the formation. The first zone has an initial permeability of at least 1 darcy. The second zone has an initial of at most 0.1 darcy. The two zones are separated by a substantially impermeable barrier.

  14. Shear zone refraction and deflection in layered granular materials

    E-Print Network [OSTI]

    Tamas Borzsonyi; Tamas Unger; Balazs Szabo

    2009-12-09T23:59:59.000Z

    Refraction and deflection of shear zones in layered granular materials was studied experimentally and numerically. We show, that (i) according to a recent theoretical prediction [T. Unger, Phys. Rev. Lett. 98, 018301 (2007)] shear zones refract in layered systems in analogy with light refraction, (ii) zone refraction obeys Snell's law known from geometric optics and (iii) under natural pressure conditions (i.e. in the presence of gravity) the zone can also be deflected by the interface so that the deformation of the high friction material is avoided.

  15. Field Mapping At Walker-Lane Transitional Zone Region (Shevenell...

    Open Energy Info (EERE)

    Region (Shevenell, Et Al., 2008) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Field Mapping Activity Date Usefulness...

  16. Geothermometry At Walker-Lane Transitional Zone Region (Shevenell...

    Open Energy Info (EERE)

    (Shevenell & De Rocher, 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Geothermometry Activity Date Usefulness...

  17. Refraction Survey At Walker-Lane Transitional Zone Region (Heimgartner...

    Open Energy Info (EERE)

    Region (Heimgartner, Et Al., 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Refraction Survey Activity Date...

  18. Reference Buildings by Climate Zone and Representative City:...

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

    minneapolispre1980v1-47-2.zip More Documents & Publications Reference Buildings by Climate Zone and Representative City: 6A Minneapolis, Minnesota Reference Buildings by...

  19. affected zone southern: Topics by E-print Network

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

    to mylonites. The sampled peridotites therefore represent Stern, Robert J. 6 Wind speed influence on phytoplankton bloom dynamics in the Southern Ocean Marginal Ice Zone...

  20. Fracture toughness and process zone kinetics in amorphous polymers

    SciTech Connect (OSTI)

    Kim, A.

    1992-01-01T23:59:59.000Z

    Usually, a process (deformation) zone is formed ahead of a crack as a response to the stress concentration in ductile materials. Then the crack initiation and propagation are inseparable from the evolution of the process zone accompanying the crack. Thus the kinetics of process zone evolution is closely coupled with the time dependency of fracture. In this study, we report the effects of weathering, scale and loading rate on fracture toughness parameters, and the kinetics of process zone evolution. We also propose a kinetic equation for process zone as a basis for modeling of the time dependency of polycarbonate fracture. Since the well-known Griffith's criterion is usually implemented for characterization of brittle fracture, we have reviewed the applicability of the conventional toughness parameter to characterization of brittle polymers. After that we applied the developed experimental and analytical technique to polycarbonate which possesses ductility and thus does not obey the conventional fracture toughness characterization requirements. The fracture toughness analysis leads to recognition of the important role of process zone evolution in fracture phenomena. As result, one of the main topics of the present work is the experimental and theoretical studies of the process zone kinetics. The kinetic equation is derived following the first principle of thermodynamics of irreversible processes. It provides a master curve for the process zone evolution for various initial conditions. The kinetic equation for the evolution of the process zone in polycarbonate is the main achievement of the thesis. The results provide the basis for mathematical modeling of time dependency of fracture.

  1. Eastern Energy Zones Mapping Tool Now Available | Department...

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

    Addthis The Eastern Interconnection States' Planning Council (EISPC) has released the Energy Zones (EZ) Mapping Tool, a free, web-based interactive tool that will help states...

  2. Stress and fault rock controls on fault zone hydrology, Coso...

    Open Energy Info (EERE)

    rock controls on fault zone hydrology, Coso geothermal field, CA Abstract In crystalline rock of the Coso Geothermal Field, CA, fractures are the primary source of permeability....

  3. Geodetic Survey At Central Nevada Seismic Zone Region (Blewitt...

    Open Energy Info (EERE)

    ENERGYGeothermal Home Exploration Activity: Geodetic Survey At Central Nevada Seismic Zone Region (Blewitt Et Al, 2005) Exploration Activity Details Location Central...

  4. Teleseismic-Seismic Monitoring At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Central Nevada Seismic Zone Region (Biasi, Et Al., 2009) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At...

  5. Geodetic Survey At Central Nevada Seismic Zone Region (Blewitt...

    Open Energy Info (EERE)

    Blewitt, Et Al., 2003) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Geodetic Survey Activity Date Usefulness useful...

  6. Teleseismic-Seismic Monitoring At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Central Nevada Seismic Zone Region (Biasi, Et Al., 2008) Exploration...

  7. Field Mapping At Central Nevada Seismic Zone Region (Blewitt...

    Open Energy Info (EERE)

    Region (Blewitt, Et Al., 2003) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Field Mapping Activity Date Usefulness...

  8. Geographic Information System At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Home Exploration Activity: Geographic Information System At Central Nevada Seismic Zone Region (Coolbaugh, Et Al., 2005 - 2) Exploration Activity Details Location...

  9. Field Mapping At Central Nevada Seismic Zone Region (Shevenell...

    Open Energy Info (EERE)

    Shevenell, Et Al., 2008) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Field Mapping Activity Date Usefulness could be...

  10. Geographic Information System At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Central Nevada Seismic Zone Geothermal Region Exploration Technique Geographic Information System Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown...

  11. Refraction Survey At Central Nevada Seismic Zone Region (Heimgartner...

    Open Energy Info (EERE)

    Central Nevada Seismic Zone Region (Heimgartner, Et Al., 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Refraction Survey At Central...

  12. Teleseismic-Seismic Monitoring At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Walker-Lane Transitional Zone Region (Biasi, Et Al., 2009) Exploration...

  13. ROSSBY WAVE INSTABILITY AT DEAD ZONE BOUNDARIES IN THREE-DIMENSIONAL RESISTIVE MAGNETOHYDRODYNAMICAL GLOBAL MODELS OF PROTOPLANETARY DISKS

    SciTech Connect (OSTI)

    Lyra, Wladimir; Mac Low, Mordecai-Mark, E-mail: wlyra@jpl.nasa.gov, E-mail: mordecai@amnh.org [Department of Astrophysics, American Museum of Natural History, 79th Street at Central Park West, New York, NY 10024 (United States)

    2012-09-01T23:59:59.000Z

    It has been suggested that the transition between magnetorotationally active and dead zones in protoplanetary disks should be prone to the excitation of vortices via Rossby wave instability (RWI). However, the only numerical evidence for this has come from alpha disk models, where the magnetic field evolution is not followed, and the effect of turbulence is parameterized by Laplacian viscosity. We aim to establish the phenomenology of the flow in the transition in three-dimensional resistive-magnetohydrodynamical models. We model the transition by a sharp jump in resistivity, as expected in the inner dead zone boundary, using the PENCIL CODE to simulate the flow. We find that vortices are readily excited in the dead side of the transition. We measure the mass accretion rate finding similar levels of Reynolds stress at the dead and active zones, at the {alpha} Almost-Equal-To 10{sup -2} level. The vortex sits in a pressure maximum and does not migrate, surviving until the end of the simulation. A pressure maximum in the active zone also triggers the RWI. The magnetized vortex that results should be disrupted by parasitical magneto-elliptic instabilities, yet it subsists in high resolution. This suggests that either the parasitic modes are still numerically damped or that the RWI supplies vorticity faster than they can destroy it. We conclude that the resistive transition between the active and dead zones in the inner regions of protoplanetary disks, if sharp enough, can indeed excite vortices via RWI. Our results lend credence to previous works that relied on the alpha-disk approximation, and caution against the use of overly reduced azimuthal coverage on modeling this transition.

  14. Characterization of fracture networks for fluid flow analysis

    SciTech Connect (OSTI)

    Long, J.C.S.; Billaux, D.; Hestir, K.; Majer, E.L.; Peterson, J.; Karasaki, K.; Nihei, K.; Gentier, S.; Cox, L.

    1989-06-01T23:59:59.000Z

    The analysis of fluid flow through fractured rocks is difficult because the only way to assign hydraulic parameters to fractures is to perform hydraulic tests. However, the interpretation of such tests, or ''inversion'' of the data, requires at least that we know the geometric pattern formed by the fractures. Combining a statistical approach with geophysical data may be extremely helpful in defining the fracture geometry. Cross-hole geophysics, either seismic or radar, can provide tomograms which are pixel maps of the velocity or attenuation anomalies in the rock. These anomalies are often due to fracture zones. Therefore, tomograms can be used to identify fracture zones and provide information about the structure within the fracture zones. This structural information can be used as the basis for simulating the degree of fracturing within the zones. Well tests can then be used to further refine the model. Because the fracture network is only partially connected, the resulting geometry of the flow paths may have fractal properties. We are studying the behavior of well tests under such geometry. Through understanding of this behavior, it may be possible to use inverse techniques to refine the a priori assignment of fractures and their conductances such that we obtain the best fit to a series of well test results simultaneously. The methodology described here is under development and currently being applied to several field sites. 4 refs., 14 figs.

  15. Influence of faults on groundwater flow and transport at YuccaMountain, Nevada

    SciTech Connect (OSTI)

    Cohen, Andrew J.B.; Sitar, Nicholas

    1999-10-07T23:59:59.000Z

    Numerical simulations of groundwater flow at Yucca Mountain, Nevada are used to investigate how faults influence groundwater flow pathways and regional-scale macrodispersion. The 3-D model has a unique grid block discretization that facilitates the accurate representation of the complex geologic structure present in faulted formations. Each hydrogeologic layer is discretized into a single layer of irregular and dipping grid blocks, and faults are discretized such that they are laterally continuous and varied in displacement varies along strike. In addition, the presence of altered fault zones is explicitly modeled, as appropriate. Simulations show that upward head gradients can be readily explained by the geometry of hydrogeologic layers, the variability of layer permeabilities, and the presence of permeable fault zones or faults with displacement only, not necessarily by upwelling from a deep aquifer. Large-scale macrodispersion results from the vertical and lateral diversion of flow near the contact of high- and low-permeability layers at faults, and from upward flow within high-permeability fault zones. Conversely, large-scale channeling can occur as a result of groundwater flow into areas with minimal fault displacement. Contaminants originating at the water table can flow in a direction significantly different from that of the water table gradient, and isolated zones of contaminants can occur at the water table downgradient. By conducting both 2-D and 3-D simulations, we show that the 2-D cross-sectional models traditionally used to examine flow in faulted formations may not be appropriate. In addition, the influence of a particular type of fault cannot be generalized; depending on the location where contaminants enter the saturated zone, faults may either enhance or inhibit vertical dispersion.

  16. Report on Hydrologic Flow in Low-Permeability Media

    SciTech Connect (OSTI)

    Liu, Hui-Hai; Birkholzer, Jens

    2013-11-13T23:59:59.000Z

    We demonstrate that under normal conditions (under which there are no intersections between tunnels/drifts and conductive geological structures, such as faults), the water flow velocity in the damage zone, as a result of non-Darcian flow behavior, is extremely small such that solute transport is dominated by diffusion, rather than advection. We show that unless non-Darcian flow behavior is considered, significant errors can occur in the “measured” relative-permeability values. We propose a hypothesis to consider the temperature impact based on limited test results from the petroleum literature. To consider the bedding effects, we present an empirical relationship between water flux and hydraulic gradient for non-Darcian water flow in anisotropic cases.

  17. Qualifying Exams Writers List

    E-Print Network [OSTI]

    2014-10-03T23:59:59.000Z

    Wang. DasGupta Garofalo. Donnelly. Smith. Rice. Aug 2005. Dasin. Banuelos. Lipman. Wilkerson. Davis. Petrosyan. McClure. Jan 2005. Lempert. Neugebauer.

  18. Who qualifies for SAGE

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

    (four preferred). Students with a quantitative background and some introduction to geophysics, though they need not be geophysics majors Math and physics majors, and other...

  19. Qualifying Energy Conservation Bonds

    E-Print Network [OSTI]

    Briggs, J.

    2013-01-01T23:59:59.000Z

    ESL-KT-13-12-39 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio, Texas Dec. 16-18 Allocated Utilized Arizona $ 67 mm $ 16 mm Arkansas $ 30 mm $ 0 mm California $381 mm $275 mm Colorado $ 51 mm $ 43 mm Florida $190 mm... $ 0 mm Georgia $100 mm $ 5 mm Illinois $134 mm $ 50 mm Kansas $ 29 mm $ 29 mm Louisiana $ 45 mm $ 30 mm Michigan $104 mm $ 11 mm Mississippi $ 30 mm $ 0 mm Oklahoma $ 38 mm $ 0 mm Washington $ 68 mm $ 40 mm TEXAS $252 mm $ 16...

  20. Method and apparatus for controlling the flow rate of mercury in a flow system

    DOE Patents [OSTI]

    Grossman, Mark W. (Belmont, MA); Speer, Richard (Reading, MA)

    1991-01-01T23:59:59.000Z

    A method for increasing the mercury flow rate to a photochemical mercury enrichment utilizing an entrainment system comprises the steps of passing a carrier gas over a pool of mercury maintained at a first temperature T1, wherein the carrier gas entrains mercury vapor; passing said mercury vapor entrained carrier gas to a second temperature zone T2 having temperature less than T1 to condense said entrained mercury vapor, thereby producing a saturated Hg condition in the carrier gas; and passing said saturated Hg carrier gas to said photochemical enrichment reactor.

  1. GROUNDWATER NITRATE REMOVAL CAPACITY OF RIPARIAN ZONES IN

    E-Print Network [OSTI]

    Gold, Art

    , and 3 in Urban watersheds to study denitrification capacity. Mini-piezometers were installed at eachGROUNDWATER NITRATE REMOVAL CAPACITY OF RIPARIAN ZONES IN URBANIZING WATERSHEDS BY TARA KIMBERLY and geomorphology of riparian zones, potentially changing riparian groundwater denitrification capacity. Little work

  2. Wireless Sensor Networks Routing over Zones Kamal Beydoun, Violeta Felea

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Wireless Sensor Networks Routing over Zones Kamal Beydoun, Violeta Felea Laboratory of Computer univ-fcomte dot fr Abstract--In this paper, we propose a routing protocol for wireless sensor networks to determine a lower bound for the number of zones. Index Terms--wireless sensor networks, hierarchical routing

  3. abscission zone cells: Topics by E-print Network

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

    ZONE Computer Technologies and Information Sciences Websites Summary: N O P R I N TI N G Z O N E N O P R I N TI N G Z O N E N O P R I N TI N G Z O N E NO PRINTING ZONE NO...

  4. Significance of Soft Zone Sediments at the SRS

    SciTech Connect (OSTI)

    Aadland, R.K.

    2000-02-03T23:59:59.000Z

    The purpose of this report is to provide information on the origin, extent and stability of ''soft zones'' in the carbonate bearing strata at the Savannah River Site (SRS). As part of this study, a comprehensive historical compendium of how soft zones have been addressed during the past 47 years at SRS is reviewed.

  5. Ultrasonic flow metering system

    DOE Patents [OSTI]

    Gomm, Tyler J. (Meridian, ID); Kraft, Nancy C. (Idaho Falls, ID); Mauseth, Jason A. (Pocatello, ID); Phelps, Larry D. (Pocatello, ID); Taylor, Steven C. (Idaho Falls, ID)

    2002-01-01T23:59:59.000Z

    A system for determining the density, flow velocity, and mass flow of a fluid comprising at least one sing-around circuit that determines the velocity of a signal in the fluid and that is correlatable to a database for the fluid. A system for determining flow velocity uses two of the inventive circuits with directional transmitters and receivers, one of which is set at an angle to the direction of flow that is different from the others.

  6. Geochemical Processes Data Package for the Vadose Zone in the Single-Shell Tank Waste Management Areas at the Hanford Site

    SciTech Connect (OSTI)

    Cantrell, Kirk J.; Zachara, John M.; Dresel, P. Evan; Krupka, Kenneth M.; Serne, R. Jeffrey

    2007-09-28T23:59:59.000Z

    This data package discusses the geochemistry of vadose zone sediments beneath the single-shell tank farms at the U.S. Department of Energy’s (DOE’s) Hanford Site. The purpose of the report is to provide a review of the most recent and relevant geochemical process information available for the vadose zone beneath the single-shell tank farms and the Integrated Disposal Facility. Two companion reports to this one were recently published which discuss the geology of the farms (Reidel and Chamness 2007) and groundwater flow and contamination beneath the farms (Horton 2007).

  7. A macroscopic relationship for preferential flow in the vadose zone: Theory and Validation

    E-Print Network [OSTI]

    Liu, H.H.

    2010-01-01T23:59:59.000Z

    water volume (excluding residual water) in the active regionwater content excluding residual water content). Similarly,water, excluding the residual water content, is as- sumed to

  8. Calibration of Predicted Hourly Zone-Level Supply Air Flows with Measurements

    E-Print Network [OSTI]

    Mihai, A.; Zmeureanu, R.

    2013-01-01T23:59:59.000Z

    and Saturday instead, but only after February 28th. h) Initially, the predictions presented a one hour lag compared to the measurements; after investigations, it was discovered that the measurements do not take into consideration the daylight savings...

  9. Gliding flow and recrystallization of halite gouge in experimental shear zones

    E-Print Network [OSTI]

    Knapp, Steven Thomas

    1983-01-01T23:59:59.000Z

    . REFERENCES CITED. V I TA. 10 10 12 12 14 15 26 26 29 40 40 50 50 53 61 69 71 72 74 78 LIST OF FIGURES PAGE FIGURE 1: FIGURE 2: FIGURE 3: Crystal Structure of Halite (NaCl) from Nicolas and Poirier, 1976. Schematic diagram... 57 60 INTRODUCTION A vast amount of experimental information has been obtained in standard coaxial, triaxial tests on the mechanical behavior of and deformation mechanisms in halite single crystals (Carter and Heard, 1970; Guillope and Poirier...

  10. Granular flow in the marginal ice zone BY DANIEL L. FELTHAM

    E-Print Network [OSTI]

    Feltham, Daniel

    and the balance equation of fluctuation kinetic energy. The steady solution of these equations is found to leading in determining the dynamics of the MIZ. Here, sea ice is treated as a granular material with a composite rheology. A simplified model of the MIZ is introduced consisting of the along and across momentum balance of the sea ice

  11. A Site-Scale Model For Fluid And Heat Flow In The Unsaturated Zone Of Yucca

    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 beingZealand Jump to:Ezfeedflag JumpID-fTriWildcat 1 WindtheEnergy InformationOfand Range ProvinceMountain,

  12. Elbow mass flow meter

    DOE Patents [OSTI]

    McFarland, Andrew R. (College Station, TX); Rodgers, John C. (Santa Fe, NM); Ortiz, Carlos A. (Bryan, TX); Nelson, David C. (Santa Fe, NM)

    1994-01-01T23:59:59.000Z

    Elbow mass flow meter. The present invention includes a combination of an elbow pressure drop generator and a shunt-type mass flow sensor for providing an output which gives the mass flow rate of a gas that is nearly independent of the density of the gas. For air, the output is also approximately independent of humidity.

  13. High gain photoconductive semiconductor switch having tailored doping profile zones

    DOE Patents [OSTI]

    Baca, Albert G. (Albuquerque, NM); Loubriel, Guillermo M. (Albuquerque, NM); Mar, Alan (Albuquerque, NM); Zutavern, Fred J (Albuquerque, NM); Hjalmarson, Harold P. (Albuquerque, NM); Allerman, Andrew A. (Albuquerque, NM); Zipperian, Thomas E. (Edgewood, NM); O'Malley, Martin W. (Edgewood, NM); Helgeson, Wesley D. (Albuquerque, NM); Denison, Gary J. (Sandia Park, NM); Brown, Darwin J. (Albuquerque, NM); Sullivan, Charles T. (Albuquerque, NM); Hou, Hong Q. (Albuquerque, NM)

    2001-01-01T23:59:59.000Z

    A photoconductive semiconductor switch with tailored doping profile zones beneath and extending laterally from the electrical contacts to the device. The zones are of sufficient depth and lateral extent to isolate the contacts from damage caused by the high current filaments that are created in the device when it is turned on. The zones may be formed by etching depressions into the substrate, then conducting epitaxial regrowth in the depressions with material of the desired doping profile. They may be formed by surface epitaxy. They may also be formed by deep diffusion processes. The zones act to reduce the energy density at the contacts by suppressing collective impact ionization and formation of filaments near the contact and by reducing current intensity at the contact through enhanced current spreading within the zones.

  14. Lateral flow strip assay

    DOE Patents [OSTI]

    Miles, Robin R. (Danville, CA); Benett, William J. (Livermore, CA); Coleman, Matthew A. (Oakland, CA); Pearson, Francesca S. (Livermore, CA); Nasarabadi, Shanavaz L. (Livermore, CA)

    2011-03-08T23:59:59.000Z

    A lateral flow strip assay apparatus comprising a housing; a lateral flow strip in the housing, the lateral flow strip having a receiving portion; a sample collection unit; and a reagent reservoir. Saliva and/or buccal cells are collected from an individual using the sample collection unit. The sample collection unit is immersed in the reagent reservoir. The tip of the lateral flow strip is immersed in the reservoir and the reagent/sample mixture wicks up into the lateral flow strip to perform the assay.

  15. Study of natural ventilation design by integrating the multi-zone model with CFD simulation

    E-Print Network [OSTI]

    Tan, Gang, 1974-

    2005-01-01T23:59:59.000Z

    Natural ventilation is widely applied in sustainable building design because of its energy saving, indoor air qualify and indoor thermal environment improvement. It is important for architects and engineers to accurately ...

  16. Vadose zone drilling at the NTS

    SciTech Connect (OSTI)

    Efurd, D.W.

    1994-08-01T23:59:59.000Z

    The Yucca Mountain Project has an opportunity to evaluate possible mobilization and transport of radioactive materials away from the storage horizon in the proposed repository. One scenario by which such transport could occur involves water leaving the storage area and carrying radioactive particulates of colloidal size. The colloids could move along the gas-liquid interface in partially filled fractures within the vadose zone. It should be possible to check the reality of this proposed scenario by examining ``anthropogenic analogs`` of the repository. These are sites of nuclear tests conducted in unsaturated tuff at the Nevada Test Site (NTS). We propose to drill under one or more such sites to determine if radionuclides have moved from their original confinement in the puddle- glass at the bottom of the cavity. This document examines the characteristics of an ideal test site for such a study, suggests several possible locations that have some of the desired characteristics, and recommends one of these sites for the proposed drilling.

  17. Method and apparatus for controlling the flow rate of mercury in a flow system

    SciTech Connect (OSTI)

    Grossman, M.W.; Speer, R.

    1991-01-01T23:59:59.000Z

    This patent describes a process for increasing the mercury flow rate {ital Q{sub Hg}} to a photochemical mercury enrichment process. It comprises: utilizing an entrainment system having a temperature regulated pool of mercury, a bubbler or sparger system, and a carrier gas for entraining mercury vapor; passing the carrier gas over a pool of mercury maintained at a first temperature, T{sub 1} wherein the carrier gas entrains mercury vapor; and passing the mercury vapor entrained carrier gas to a second temperature zone, maintained at a temperature T{sub 2}, such that T{sub 2} is less than T{sub 1}, in which the entrained mercury vapor is condensed, thereby producing a saturated Hg conditioning the carrier gas; and passing the saturated Hg carrier gas to the photochemical enrichment reactor, yielding a high flow rate {ital Q{sub Hg}}.

  18. LONG-TERM COLLOID MOBILIZATION AND COLLOID-FACILITATED TRANSPORT OF RADIONUCLIDES IN A SEMI-ARID VADOSE ZONE

    SciTech Connect (OSTI)

    Markus Flury; James B. Harsh; Fred Zhang; Glendon W. Gee; Earl D. Mattson; Peter C. L

    2012-08-01T23:59:59.000Z

    The main purpose of this project was to improve the fundamental mechanistic understanding and quantification of long-term colloid mobilization and colloid-facilitated transport of radionuclides in the vadose zone, with special emphasis on the semi-arid Hanford site. While we focused some of the experiments on hydrogeological and geochemical conditions of the Hanford site, many of our results apply to colloid and colloid-facilitated transport in general. Specific objectives were (1) to determine the mechanisms of colloid mobilization and colloid-facilitated radionuclide transport in undisturbed Hanford sediments under unsaturated flow, (2) to quantify in situ colloid mobilization and colloid-facilitated radionuclidetransport from Hanford sediments under field conditions, and (3) to develop a field-scale conceptual and numerical model for colloid mobilization and transport at the Hanford vadose zone, and use that model to predict long-term colloid and colloid- facilitated radionuclide transport. To achieve these goals and objectives, we have used a combination of experimental, theoretical, and numerical methods at different spatial scales, ranging from microscopic investigationsof single particle attachment and detachment to larger-scale field experiments using outdoor lysimeters at the Hanford site. Microscopic and single particle investigations provided fundamental insight into mechanisms of colloid interactions with the air-water interface. We could show that a moving air water interface (such as a moving water front during infiltration and drainage) is very effective in removing and mobilizing particles from a stationary surface. We further demonstrated that it is particularly the advancing air-water interface which is mainly responsible for colloid mobilization. Forces acting on the colloids calculated from theory corroborated our experimental results, and confirm that the detachment forces (surface tension forces) during the advancing air-water interface movement were stronger than during the receding movement. Theory indicates that, for hydrophilic colloids, the advancing interface movement generally exerts a stronger detachment force than the receding, except when the hysteresis of the colloid-air-water contact angle is small. These results of our study are particularly relevant for colloid mobilization and transport related to three process in the vadose zone at Hanford: (1) water infiltration into sediments during rainfall or snowmelt events, (2) groundwater fluctuations as caused by river stage fluctuations, and (3) steady-state, low-flow recharge in deep vadose zone sediments. Transient water flow, like during infiltration or groundwater level fluctuations, are most conducive for colloid mobilization, but even during steady-state, low-flow recharge, colloids can be mobile, although to a much lesser extent. The results of this project have led to a comprehensive and fundamental understanding of colloid transport and mobilization under unsaturated flow conditions at the Hanford site.

  19. AnalyzeHOLE: An Integrated Wellbore Flow Analysis Tool

    SciTech Connect (OSTI)

    Keith J. Halford

    2009-10-01T23:59:59.000Z

    Conventional interpretation of flow logs assumes that hydraulic conductivity is directly proportional to flow change with depth. However, well construction can significantly alter the expected relation between changes in fluid velocity and hydraulic conductivity. Strong hydraulic conductivity contrasts between lithologic intervals can be masked in continuously screened wells. Alternating intervals of screen and blank casing also can greatly complicate the relation between flow and hydraulic properties. More permeable units are not necessarily associated with rapid fluid-velocity increases. Thin, highly permeable units can be misinterpreted as thick and less permeable intervals or not identified at all. These conditions compromise standard flow-log interpretation because vertical flow fields are induced near the wellbore. AnalyzeHOLE, an integrated wellbore analysis tool for simulating flow and transport in wells and aquifer systems, provides a better alternative for simulating and evaluating complex well-aquifer system interaction. A pumping well and adjacent aquifer system are simulated with an axisymmetric, radial geometry in a two-dimensional MODFLOW model. Hydraulic conductivities are distributed by depth and estimated with PEST by minimizing squared differences between simulated and measured flows and drawdowns. Hydraulic conductivity can vary within a lithology but variance is limited with regularization. Transmissivity of the simulated system also can be constrained to estimates from single-well, pumping tests. Water-quality changes in the pumping well are simulated with simple mixing models between zones of differing water quality. These zones are differentiated by backtracking thousands of particles from the well screens with MODPATH. An Excel spreadsheet is used to interface the various components of AnalyzeHOLE by (1) creating model input files, (2) executing MODFLOW, MODPATH, PEST, and supporting FORTRAN routines, and (3) importing and graphically displaying pertinent results.

  20. Characterization of Persistent Volatile Contaminant Sources in the Vadose Zone

    SciTech Connect (OSTI)

    Carroll, Kenneth C.; Truex, Michael J.; Brusseau, Mark L.; Parker, Kyle R.; Mackley, Rob D.; Rohay, Virginia J.

    2013-05-01T23:59:59.000Z

    Remediation activities over time will alter the subsurface distribution of contaminants and likely create significant changes in the source-zone architecture. A field method was demonstrated for use of data collected from multiple individual soil vapor extraction (SVE) system well tests to locate and characterize the distribution of persistent VOC sources in the vadose zone. Operational data collected at the Department of Energy’s Hanford site were used to examine source zone alteration over time due to SVE operation and to illustrate the source-zone characterization approach. Individual well test results confirmed a heterogeneous distribution of permeability and contaminant mass discharge throughout the vadose zone. The trends in mass discharge and concentration were analyzed to determine the location and extent of the primary source zone within a lower-permeability unit at the site. This information is useful to evaluate the performance of SVE operations, and support decisions concerning system alteration or closure based on risk assessments of the impact of vadose-zone sources on groundwater contamination or vapor intrusion.

  1. Large Eddy Simulation Analysis of Flow Field Inside a High-g Combustor

    E-Print Network [OSTI]

    Raman, Venkat

    Large Eddy Simulation Analysis of Flow Field Inside a High-g Combustor C. Heye , C. Lietz , J-compact combustors (UCC) are a technology for reducing the size of combustors. In these combustors the fuel and air results exhibit significant entrainment of fuel into recirculation zones inside the combustor, however

  2. Air and water flows in a large sand box with a two-layer aquifer system

    E-Print Network [OSTI]

    Jiao, Jiu Jimmy

    Air and water flows in a large sand box with a two-layer aquifer system Xingxing Kuang & Jiu Jimmy negative air pressure can be generated in the vadose zone during pumping. The negative air pressure. The initial water-table depth has a significant effect on the generated negative air pressure. The shallower

  3. Revised process for work zone decision-making based on quantitative performance measures

    E-Print Network [OSTI]

    Hartmann, Thomas Wayne

    2008-10-10T23:59:59.000Z

    Work zones create one of the most challenging environments for drivers. Implementing work zones on urban freeways creates many issues, especially with respect to mobility. Decisions made regarding the work zone should be informed by quantitative...

  4. Preplanning for D and D: Monitoring the Vadose Zone at Radioactive Waste Trenches

    SciTech Connect (OSTI)

    Wyatt, Douglas [Washington Group, Safety Management Solutions, 2131 S. Centennial Dr., Aiken, SC 29803 (United States)

    2008-01-15T23:59:59.000Z

    Planning for ultimate Decontamination and Decommissioning (D and D) of a nuclear facility is as much a part of a successful nuclear strategy as is the ultimate disposal of radioactive waste. As facilities, in this case radioactive waste disposal trenches, are closed and abandoned leading to ultimate decommissioning, long term monitoring may be required. However, preplanning by characterizing, modeling, and monitoring the environment around the facility prior to and during operations will allow a performance assessment to be made and future behavior predicted. In the radioactive waste burial grounds of the Savannah River Site new slit trenches were constructed to receive demolition debris associated with site foot print reduction. Some of the construction debris and associated process waste contained small amounts of tritium. Since the trenches were constructed over an existing tritium groundwater plume the monitoring and performance assessment of the trench, particularly with respect to tritium contributions to the vadose zone and groundwater, were important. These disposal trenches vary in length and width but are typically constructed within the upper 7 to 8 meters (21 to 24 feet) of the local sediments. The unconfined aquifer (water table) typically underlies the area at depths varying from 20 to 24 meters (60 to 72 feet), depending on elevation. Therefore, with downward flow and 13 to 16 meters (40 to 48 feet) of unsaturated sediments separating the base of the waste trenches from the unconfined aquifer, there was potential for an environmental impact to the sediments within the vadose zone and to the underlying groundwater. Monitoring and predicting this impact can support ultimate D and D activities and future performance assessment evaluation. From this work several key observations were made that will support long term monitoring and subsequent D and D: - The observed lateral variation of thinly bedded sands and clays may be less than 20 meters particularly if lenticular sands are present. Ultimate D and D should consider monitoring and remedial activities that consider sampling on scales to address this issue. - The detailed modeling, when compared with the modeled depositional patterns, indicates flow paths for vadose zone fluids, therefore a plan should allow for these flow paths. - Detailed lithostratigraphic modeling, when based on correlations between soil properties, CPT soundings and borehole geophysical logs, can aid in precision placement of subsurface sensors and sample points for performance monitoring and D and D assessment.

  5. Dissolved Nutrient Retention Dynamics in River Networks: A Modeling Investigation of Transient Flow and Scale Effects

    SciTech Connect (OSTI)

    Ye, Sheng; Covino, Timothy P.; Sivapalan, Murugesu; Basu, Nandita; Li, Hongyi; Wang, Shaowen

    2012-06-30T23:59:59.000Z

    In this paper, we use a dynamic network flow model, coupled with a transient storage zone biogeochemical model, to simulate dissolved nutrient removal processes at the channel network scale. We have explored several scenarios in respect of the combination of rainfall variability, and the biological and geomorphic characteristics of the catchment, to understand the dominant controls on removal and delivery of dissolved nutrients (e.g., nitrate). These model-based theoretical analyses suggested that while nutrient removal efficiency is lower during flood events compared to during baseflow periods, flood events contribute significantly to bulk nutrient removal, whereas bulk removal during baseflow periods is less. This is due to the fact that nutrient supply is larger during flood events; this trend is even stronger in large rivers. However, the efficiency of removal during both periods decreases in larger rivers, however, due to (i) increasing flow velocities and thus decreasing residence time, and (ii) increasing flow depth, and thus decreasing nutrient uptake rates. Besides nutrient removal processes can be divided into two parts: in the main channel and in the hyporheic transient storage zone. When assessing their relative contributions the size of the transient storage zone is a dominant control, followed by uptake rates in the main channel and in the transient storage zone. Increasing size of the transient storage zone with downstream distance affects the relative contributions to nutrient removal of the water column and the transient storage zone, which also impacts the way nutrient removal rates scale with increasing size of rivers. Intra-annual hydrologic variability has a significant impact on removal rates at all scales: the more variable the streamflow is, compared to mean discharge, the less nutrient is removed in the channel network. A scale-independent first order uptake coefficient, ke, estimated from model simulations, is highly dependent on the relative size of the transient storage zone and how it changes in the downstream direction, as well as the nature of hydrologic variability.

  6. FLOW SOURCES AND FORMATION LAWS OF SOLAR WIND N. A. LOTOVA1, V. N. OBRIDKO1, K. V. VLADIMIRSKII2, M. K. BIRD3 and

    E-Print Network [OSTI]

    Padmanabhan, Janardhan

    FLOW SOURCES AND FORMATION LAWS OF SOLAR WIND STREAMS N. A. LOTOVA1, V. N. OBRIDKO1, K. V. VLADIMIRSKII2, M. K. BIRD3 and P. JANARDHAN3, 1IZMIRAN, Troitsk, Moscow Region, 142190, Russia (e-mail: nlotova structure of the solar wind flow is studied in the main acceleration zone from 10 to 40 solar radii from

  7. Flow calculations for Yucca Mountain groundwater travel time (GWTT-95)

    SciTech Connect (OSTI)

    Altman, S.J.; Arnold, B.W.; Barnard, R.W.; Barr, G.E.; Ho, C.K.; McKenna, S.A.; Eaton, R.R.

    1996-09-01T23:59:59.000Z

    In 1983, high-level radioactive waste repository performance requirements related to groundwater travel time were defined by NRC subsystem regulation 10 CFR 60.113. Although DOE is not presently attempting to demonstrate compliance with that regulation, understanding of the prevalence of fast paths in the groundwater flow system remains a critical element of any safety analyses for a potential repository system at Yucca Mountain, Nevada. Therefore, this analysis was performed to allow comparison of fast-path flow against the criteria set forth in the regulation. Models developed to describe the conditions for initiation, propagation, and sustainability of rapid groundwater movement in both the unsaturated and saturated zones will form part of the technical basis for total- system analyses to assess site viability and site licensability. One of the most significant findings is that the fastest travel times in both unsaturated and saturated zones are in the southern portion of the potential repository, so it is recommended that site characterization studies concentrate on this area. Results support the assumptions regarding the importance of an appropriate conceptual model of groundwater flow and the incorporation of heterogeneous material properties into the analyses. Groundwater travel times are sensitive to variation/uncertainty in hydrologic parameters and in infiltration flux at upper boundary of the problem domain. Simulated travel times are also sensitive to poorly constrained parameters of the interaction between flow in fractures and in the matrix.

  8. Colorado Heat Flow Data from IHFC

    SciTech Connect (OSTI)

    Zehner, Richard E.

    2012-02-01T23:59:59.000Z

    Citation Information: Originator: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Originator: The International Heat Flow Commission (IHFC) Publication Date: 2012 Title: Colorado IHFC Data Edition: First Publication Information: Publication Place: Earth Science & Observation Center, Cooperative Institute for Research in Environmental Science (CIRES), University of Colorado, Boulder Publisher: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Description: Abstract: This layer contains the heat flow sites and data of the State of Colorado compiled from the International Heat Flow Commission (IHFC) of the International Association of Seismology and Physics of the Earth's Interior (IASPEI) global heat flow database (www.heatflow.und.edu/index2.html). The data include different items: Item number, descriptive code, name of site, latitude and longitude, elevation, depth interval, number of temperature data, temperature gradient, number of conductivity measurement, average conductivity, number of heat generation measurements, average heat production, heat flow, number of individual sites, references, and date of publication. Spatial Domain: Extent: Top: 4522121.800672 m Left: 165356.134075 m Right: 621836.776246 m Bottom: 4097833.419676 m Contact Information: Contact Organization: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Contact Person: Khalid Hussein Address: CIRES, Ekeley Building Earth Science & Observation Center (ESOC) 216 UCB City: Boulder State: CO Postal Code: 80309-0216 Country: USA Contact Telephone: 303-492-6782 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS’1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude Of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System 1984 (WGS ’1984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shape file

  9. The Viability of Sustainable, Self-Propping Shear Zones in Ehanced...

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

    Self-Propping Shear Zones in Ehanced Geothermal Systems: Measurement of Reaction Rates at Elevated Temperatures The Viability of Sustainable, Self-Propping Shear Zones in...

  10. Exploration of Resource and Transmission Expansion Decisions in the Western Renewable Energy Zone Initiative

    E-Print Network [OSTI]

    Mills, Andrew D

    2011-01-01T23:59:59.000Z

    Colorado: National Renewable Energy Laboratory. NREL/SR-Decisions in the Western Renewable Energy Zone Initiative.Finn, J. 2009. Western Renewable Energy Zones, Phase 1: QRA

  11. Human dimensions perspectives on the impacts of coastal zone marine renewable energy

    E-Print Network [OSTI]

    Pomeroy, Caroline; Conway, Flaxen; Hall-Arber, Madeleine

    2013-01-01T23:59:59.000Z

    coastal zone marine renewable energy generation. REFERENCESOuter Continental Shelf Renewable Energy Space-Use ConflictsOF COASTAL ZONE MARINE RENEWABLE ENERGY Caroline Pomeroy,

  12. Turbulent flow in graphene

    E-Print Network [OSTI]

    Kumar S. Gupta; Siddhartha Sen

    2010-06-05T23:59:59.000Z

    We demonstrate the possibility of a turbulent flow of electrons in graphene in the hydrodynamic region, by calculating the corresponding turbulent probability density function. This is used to calculate the contribution of the turbulent flow to the conductivity within a quantum Boltzmann approach. The dependence of the conductivity on the system parameters arising from the turbulent flow is very different from that due to scattering.

  13. Reaction zones and their structure in MILD combustion

    E-Print Network [OSTI]

    Minamoto, Y.; Swaminathan, N.; Cant, R. S.; Leung, T.

    2014-06-26T23:59:59.000Z

    ¨nning & Wu¨nning, 1997; Cavaliere & de Joannon, 2004; Medwell, 2007). Thus, MILD combustor design is not constrained by the requirements of recirculation zones or flame holders, which is advantageous for high-speed combustion. Furthermore, MILD conditions...

  14. Nitrous Oxide Production in the Gulf of Mexico Hypoxic Zone 

    E-Print Network [OSTI]

    Visser, Lindsey A.

    2010-10-12T23:59:59.000Z

    The Gulf of Mexico hypoxic zone is created by strong persistent water stratification and nutrient loading from the Mississippi River which fuels primary production and bacterial decomposition. The Texas-Louisiana shelf ...

  15. Controls on earthquake rupture and triggering mechanisms in subduction zones

    E-Print Network [OSTI]

    Llenos, Andrea Lesley

    2010-01-01T23:59:59.000Z

    Large earthquake rupture and triggering mechanisms that drive seismicity in subduction zones are investigated in this thesis using a combination of earthquake observations, statistical and physical modeling. A comparison ...

  16. A micromechanical model for a viscoelastic cohesive zone

    E-Print Network [OSTI]

    Searcy, Chad Randall, 1972-

    1998-01-01T23:59:59.000Z

    A micromechanical model for a viscoelastic cohesive aphics. zone is formulated herein. Care has been taken in the construction of a physically-based continuum mechanics model of the damaged region ahead of the crack tip. The homogenization...

  17. A Gas-Fired Heat Pipe Zone Heater 

    E-Print Network [OSTI]

    Winn, C. B.; Burns, P.; Guire, J.

    1984-01-01T23:59:59.000Z

    A gas-fired vented zone heater has recently been developed by the Altar Corporation for Colorado State University (CSU) under a Gas Research Institute (GRI) contract. The unit war developed for auxiliary heating applications in passive solar...

  18. Oklahoma Local Development and Enterprise Zone Incentive Leverage Act (Oklahoma)

    Broader source: Energy.gov [DOE]

    The Oklahoma Local Development and Enterprise Zone Incentive Leverage Act provides funding for local units of government to match local tax revenue dedicated to support a project located in an...

  19. Shaping urban form without zoning: a case study of houston

    E-Print Network [OSTI]

    Qian, Zhu

    2009-05-15T23:59:59.000Z

    , civic and private organizations such as super neighborhoods and homeowner associations fill the gaps left by the lack of land use zoning. These two aspects contribute to land use planning and urban form of the city. Houston presents a contradiction...

  20. Reference Buildings by Climate Zone and Representative City:...

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

    A Baltimore, Maryland Reference Buildings by Climate Zone and Representative City: 4A Baltimore, Maryland In addition to the ZIP file for each building type, you can directly view...

  1. Reference Buildings by Climate Zone and Representative City:...

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

    A Chicago, Illinois Reference Buildings by Climate Zone and Representative City: 5A Chicago, Illinois In addition to the ZIP file for each building type, you can directly view the...

  2. Reference Buildings by Climate Zone and Representative City:...

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

    B Helena, Montana Reference Buildings by Climate Zone and Representative City: 6B Helena, Montana In addition to the ZIP file for each building type, you can directly view the...

  3. Reference Buildings by Climate Zone and Representative City:...

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

    B Boulder, Colorado Reference Buildings by Climate Zone and Representative City: 5B Boulder, Colorado In addition to the ZIP file for each building type, you can directly view the...

  4. Reference Buildings by Climate Zone and Representative City:...

    Energy Savers [EERE]

    1A Miami, Florida Reference Buildings by Climate Zone and Representative City: 1A Miami, Florida In addition to the ZIP file for each building type, you can directly view the...

  5. Reference Buildings by Climate Zone and Representative City:...

    Energy Savers [EERE]

    7 Duluth, Minnesota Reference Buildings by Climate Zone and Representative City: 7 Duluth, Minnesota In addition to the ZIP file for each building type, you can directly view the...

  6. Reference Buildings by Climate Zone and Representative City:...

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

    B Phoenix, Arizona Reference Buildings by Climate Zone and Representative City: 2B Phoenix, Arizona In addition to the ZIP file for each building type, you can directly view the...

  7. Reference Buildings by Climate Zone and Representative City:...

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

    B Las Vegas, Nevada Reference Buildings by Climate Zone and Representative City: 3B Las Vegas, Nevada In addition to the ZIP file for each building type, you can directly view the...

  8. Reference Buildings by Climate Zone and Representative City:...

    Energy Savers [EERE]

    B Los Angeles, California Reference Buildings by Climate Zone and Representative City: 3B Los Angeles, California In addition to the ZIP file for each building type, you can...

  9. Reference Buildings by Climate Zone and Representative City:...

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

    C San Francisco, California Reference Buildings by Climate Zone and Representative City: 3C San Francisco, California In addition to the ZIP file for each building type, you can...

  10. Reference Buildings by Climate Zone and Representative City:...

    Energy Savers [EERE]

    A Atlanta, Georgia Reference Buildings by Climate Zone and Representative City: 3A Atlanta, Georgia In addition to the ZIP file for each building type, you can directly view the...

  11. Reference Buildings by Climate Zone and Representative City:...

    Energy Savers [EERE]

    A Houston, Texas Reference Buildings by Climate Zone and Representative City: 2A Houston, Texas In addition to the ZIP file for each building type, you can directly view the...

  12. Reference Buildings by Climate Zone and Representative City:...

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

    C Seattle, Washington Reference Buildings by Climate Zone and Representative City: 4C Seattle, Washington In addition to the ZIP file for each building type, you can directly view...

  13. A Simple Technique for Islanding Detection with Negligible Nondetection Zone

    E-Print Network [OSTI]

    Kirtley Jr, James L.

    Although active islanding detection techniques have smaller nondetection zones than passive techniques, active methods could degrade the system power quality and are not as simple and easy to implement as passive methods. ...

  14. Hydrological and Oceanographic Considerations for Integrated Coastal Zone Management

    E-Print Network [OSTI]

    sustainable economic development. This study aims to support environmental management at the scaleHydrological and Oceanographic Considerations for Integrated Coastal Zone Management in Southern reduce soil fertility in the uplands and nega- tively affect mangrove, seagrass, and coral reef

  15. Mate Choice, Genetic Variation, and Population Structure in Hybrid Zones

    E-Print Network [OSTI]

    Culumber, Zachary Wyatt

    2012-02-14T23:59:59.000Z

    informative single nucleotide polymorphisms (SNPs) in one mitochondrial and three nuclear intron loci, I show that hybrid zones occur in replicated fashion in multiple stream reaches along a gradient from high to low elevation. Tests of FIS and linkage...

  16. Reference Buildings by Climate Zone and Representative City:...

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

    new2004v1.35.0.zip refbldg3ausagaatlantanew2004v1-47-2.zip More Documents & Publications Reference Buildings by Climate Zone and Representative City: 3A Atlanta, Georgia...

  17. Reference Buildings by Climate Zone and Representative City:...

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

    new2004v1.35.0.zip refbldg1ausaflmiaminew2004v1-47-2.zip More Documents & Publications Reference Buildings by Climate Zone and Representative City: 1A Miami, Florida...

  18. Reference Buildings by Climate Zone and Representative City:...

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

    new2004v1.35.0.zip refbldg2ausatxhoustonnew2004v1-47-2.zip More Documents & Publications Reference Buildings by Climate Zone and Representative City: 2A Houston, Texas...

  19. arid zones: Topics by E-print Network

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

    vadose zones in arid regions. 1. Bridget R. Scanlon; Scott W. Tyler; Peter J. Wierenga 1997-01-01 13 DRAINAGE EXPERIENCES IN ARID AND SEMI-ARID REGIONS EXPRIENCES DE DRAINAGE...

  20. arid zone exploratory: Topics by E-print Network

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

    vadose zones in arid regions. 1. Bridget R. Scanlon; Scott W. Tyler; Peter J. Wierenga 1997-01-01 14 DRAINAGE EXPERIENCES IN ARID AND SEMI-ARID REGIONS EXPRIENCES DE DRAINAGE...

  1. Carbon Dioxide Emissions From Vegetation-Kill Zones Around The...

    Open Energy Info (EERE)

    Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Carbon Dioxide Emissions From Vegetation-Kill Zones Around The Resurgent Dome Of Long Valley...

  2. A Gas-Fired Heat Pipe Zone Heater

    E-Print Network [OSTI]

    Winn, C. B.; Burns, P.; Guire, J.

    1984-01-01T23:59:59.000Z

    A gas-fired vented zone heater has recently been developed by the Altar Corporation for Colorado State University (CSU) under a Gas Research Institute (GRI) contract. The unit war developed for auxiliary heating applications in passive solar...

  3. Reference Buildings by Climate Zone and Representative City:...

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

    B Albuquerque, New Mexico Reference Buildings by Climate Zone and Representative City: 4B Albuquerque, New Mexico In addition to the ZIP file for each building type, you can...

  4. Analysis Of Residence Time Distribution Of Fluid Flow By Axial Dispersion Model

    SciTech Connect (OSTI)

    Sugiharto [Department of Physics, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, Jl. Ganesha 10, Bandung 40132 (Indonesia); Centre for Applications of Isotopes and Radiation Technology-National Nuclear Energy Agency, Jl. Lebak Bulus Raya No. 49, Jakarta 12440 (Indonesia); Su'ud, Zaki; Kurniadi, Rizal; Waris, Abdul [Centre for Applications of Isotopes and Radiation Technology-National Nuclear Energy Agency, Jl. Lebak Bulus Raya No. 49, Jakarta 12440 (Indonesia); Abidin, Zainal [Department of Physics, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, Jl. Ganesha 10, Bandung 40132 (Indonesia)

    2010-12-23T23:59:59.000Z

    Radioactive tracer {sup 82}Br in the form of KBr-82 with activity {+-} 1 mCi has been injected into steel pipeline to qualify the extent dispersion of water flowing inside it. Internal diameter of the pipe is 3 in. The water source was originated from water tank through which the water flow gravitically into the pipeline. Two collimated sodium iodide detectors were used in this experiment each of which was placed on the top of the pipeline at the distance of 8 and 11 m from injection point respectively. Residence time distribution (RTD) curves obtained from injection of tracer are elaborated numerically to find information of the fluid flow properties. The transit time of tracer calculated from the mean residence time (MRT) of each RTD curves is 14.9 s, therefore the flow velocity of the water is 0.2 m/s. The dispersion number, D/uL, for each RTD curve estimated by using axial dispersion model are 0.055 and 0.06 respectively. These calculations are performed after fitting the simulated axial dispersion model on the experiment curves. These results indicated that the extent of dispersion of water flowing in the pipeline is in the category of intermediate.

  5. Possible solar cycle variations in the convection zone

    E-Print Network [OSTI]

    Sarbani Basu; H. M. Antia

    2000-01-26T23:59:59.000Z

    Using data from the Global Oscillations Network Group (GONG) that covers the period from 1995 to 1998 we study the change in frequencies of solar oscillations with solar activity. From these frequencies we attempt to determine any possible variation in solar structure with solar activity. We do not find any evidence of a change in the convection zone depth or extent of overshoot below the convection zone during the solar cycle.

  6. Two experiments for measuring specific viscoelastic cohesive zone parameters

    E-Print Network [OSTI]

    Williams, Justin Joel

    2002-01-01T23:59:59.000Z

    CHAPTER III ESEM EXPERIMENTS The second experiment was designed to perform the same kind of test as the first, but be conducted inside an Environmental Scanning Electron Microscope (ESEM) and produces images of much smaller cohesive zones and fibrils... experiments, only on a much smaller scale. Some materials have cohesive zones small enough to require the use of electron microscopy. Unfortunately, samples are preparation intensive for S E M tests. For this thesis it was decided to use the Environmental...

  7. Mechanical properties and fabric of the Punchbowl fault zone, California

    E-Print Network [OSTI]

    Chester, Frederick Michael

    1983-01-01T23:59:59.000Z

    MECHANICAL PROPERIIES AND FABRIC OF THE PUiVCHBOlv'L FAULT ZONE, CALIFORNIA A Thesis by FREDERICK MICHAEL CHESTER Subm-', tted to the Graduate College of Texas ABM University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE December 1983 Major Subject: Geology MECHANICAL PROPERTIES AND FABRIC OF THE PUNCHBOWL FAULT ZONE, CALIFORNIA A Thesis by FREDERICK MICHAEL CHESTER Approved as to sty1e and content by: on . . an airman o ommittee) Me1vin edman...

  8. Varying heating in dawsonite zones in hydrocarbon containing formations

    SciTech Connect (OSTI)

    Vinegar, Harold J. (Bellaire, TX); Xie, Xueying (Houston, TX); Miller, David Scott (Katy, TX)

    2009-07-07T23:59:59.000Z

    A method for treating an oil shale formation comprising dawsonite includes assessing a dawsonite composition of one or more zones in the formation. Heat from one or more heaters is provided to the formation such that different amounts of heat are provided to zones with different dawsonite compositions. The provided heat is allowed to transfer from the heaters to the formation. Fluids are produced from the formation.

  9. Method for processing seismic data to identify anomalous absorption zones

    DOE Patents [OSTI]

    Taner, M. Turhan

    2006-01-03T23:59:59.000Z

    A method is disclosed for identifying zones anomalously absorptive of seismic energy. The method includes jointly time-frequency decomposing seismic traces, low frequency bandpass filtering the decomposed traces to determine a general trend of mean frequency and bandwidth of the seismic traces, and high frequency bandpass filtering the decomposed traces to determine local variations in the mean frequency and bandwidth of the seismic traces. Anomalous zones are determined where there is difference between the general trend and the local variations.

  10. Standard practice for evaluating and qualifying oil field and refinery corrosion inhibitors using the rotating cylinder electrode

    E-Print Network [OSTI]

    American Society for Testing and Materials. Philadelphia

    2006-01-01T23:59:59.000Z

    1.1 This practice covers a generally accepted procedure to use the rotating cylinder electrode (RCE) for evaluating corrosion inhibitors for oil field and refinery applications in defined flow conditions. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

  11. Permeability-dependent propagation of polyacrylamides under near-wellbore flow conditions

    SciTech Connect (OSTI)

    Zitha, P.; Chauveteau, G.; Zaitoun, A. [Inst. Francais du Petrole, Rueil-Malmaison (France)

    1995-11-01T23:59:59.000Z

    A new type of polyacrylamide flow-induced retention has been observed in core experiments simulating near-wellbore flow conditions. The retention is due to the bridging of pore throats by adsorbed macromolecules previously stretched under elongational flow. It occurs in low-to-medium permeability granular packs (up to k = 1,000 mD in the test conditions) and leads to progressive but severe plugging. The present paper shows that polymer placement in the reservoir surrounding the wellbore can be very different from what is predicted from stable values of polymer mobility. In heterogeneous reservoirs, polymer penetration in low-permeability layers is expected to be strongly reduced, thus allowing a deeper penetration into higher permeability zones. The polymer can thus improve reservoir conformance around the wellbore when injected directly through the entire opened interval. Near-wellbore polymer or gel treatments may thus not require zone isolation to be efficient.

  12. Extended reaction zone of La0.6Sr0.4Co0.2Fe0.8O3 cathode for solid oxide fuel cell

    SciTech Connect (OSTI)

    Lu, Zigui; Hardy, John S.; Templeton, Jared W.; Stevenson, Jeffry W.

    2012-01-03T23:59:59.000Z

    The oxygen reduction reaction at the cathode of solid oxide fuel cell (SOFC) is a complicated process which involves the interaction of oxygen molecules, electrons, and oxygen ions. Therefore, it can only proceed at locations where gas, electronic conductor, and an oxygen ion conductor meet. Although the extension of the reaction zone beyond the traditional so-called triple-phase-boundary (TPB) is widely accepted for a mixed ionically and electronically conductive cathode, work in this area has yet to reach a consensus on how far the reaction zone can be extended. In this study, anode-supported fuel cells with a variety of LSCF cathode thicknesses were fabricated and tested in two cathode environments, flowing oxygen and flowing air. In flowing oxygen, the cell performance increased with LSCF cathode thickness over the entire range investigated (from 5 to 33 ?m). In flowing air, the cell performance also increased with the LSCF cathode thickness from 5 to 13 ?m, but then remained almost constant with further increase in cathode thickness. In flowing oxygen, since there was no concentration polarization related to oxygen diffusion, the polarization resistance of oxygen reduction decreased with the LSCF cathode thickness because of the increased number of reaction sites. A linear relationship was established between the reciprocal of the polarization resistance and the cathode thickness, which was explained by a model developed for aqueous gas diffusion electrodes.

  13. Features, Events, and Processes in UZ Flow and Transport

    SciTech Connect (OSTI)

    J.E. Houseworth

    2001-04-10T23:59:59.000Z

    Unsaturated zone (UZ) flow and radionuclide transport is a component of the natural barriers that affects potential repository performance. The total system performance assessment (TSPA) model, and underlying process models, of this natural barrier component capture some, but not all, of the associated features, events, and processes (FEPs) as identified in the FEPs Database (Freeze, et al. 2001 [154365]). This analysis and model report (AMR) discusses all FEPs identified as associated with UZ flow and radionuclide transport. The purpose of this analysis is to give a comprehensive summary of all UZ flow and radionuclide transport FEPs and their treatment in, or exclusion from, TSPA models. The scope of this analysis is to provide a summary of the FEPs associated with the UZ flow and radionuclide transport and to provide a reference roadmap to other documentation where detailed discussions of these FEPs, treated explicitly in TSPA models, are offered. Other FEPs may be screened out from treatment in TSPA by direct regulatory exclusion or through arguments concerning low probability and/or low consequence of the FEPs on potential repository performance. Arguments for exclusion of FEPs are presented in this analysis. Exclusion of specific FEPs from the UZ flow and transport models does not necessarily imply that the FEP is excluded from the TSPA. Similarly, in the treatment of included FEPs, only the way in which the FEPs are included in the UZ flow and transport models is discussed in this document. This report has been prepared in accordance with the technical work plan for the unsaturated zone subproduct element (CRWMS M&O 2000 [153447]). The purpose of this report is to document that all FEPs are either included in UZ flow and transport models for TSPA, or can be excluded from UZ flow and transport models for TSPA on the basis of low probability or low consequence. Arguments for exclusion are presented in this analysis. Exclusion of specific FEPs from UZ flow and transport models does not necessarily imply that the FEP is excluded from the TSPA. Similarly, in the treatment of included FEPs, only the way in which FEPs are included in UZ flow and transport models is discussed in this document.

  14. Microelectromechanical flow control apparatus

    DOE Patents [OSTI]

    Okandan, Murat (NE Albuquerque, NM)

    2009-06-02T23:59:59.000Z

    A microelectromechanical (MEM) flow control apparatus is disclosed which includes a fluid channel formed on a substrate from a first layer of a nonconducting material (e.g. silicon nitride). A first electrode is provided on the first layer of the nonconducting material outside the flow channel; and a second electrode is located on a second layer of the nonconducting material above the first layer. A voltage applied between the first and second electrodes deforms the fluid channel to increase its cross-sectional size and thereby increase a flow of a fluid through the channel. In certain embodiments of the present invention, the fluid flow can be decreased or stopped by applying a voltage between the first electrode and the substrate. A peristaltic pumping of the fluid through the channel is also possible when the voltage is applied in turn between a plurality of first electrodes and the substrate. A MEM flow control assembly can also be formed by providing one or more MEM flow control devices on a common substrate together with a submicron filter. The MEM flow control assembly can optionally include a plurality of pressure sensors for monitoring fluid pressure and determining flow rates through the assembly.

  15. Modelling of multiphase flow in ironmaking blast furnace

    SciTech Connect (OSTI)

    Dong, X.F.; Yu, A.B.; Burgess, J.M.; Pinson, D.; Chew, S.; Zulli, P. [University of New South Wales, Sydney, NSW (Australia). School for Material Science and Engineering

    2009-01-15T23:59:59.000Z

    A mathematical model for the four-phase (gas, powder, liquid, and solids) flow in a two-dimensional ironmaking blast furnace is presented by extending the existing two-fluid flow models. The model describes the motion of gas, solid, and powder phases, based on the continuum approach, and implements the so-called force balance model for the flow of liquids, such as metal and slag in a blast furnace. The model results demonstrate a solid stagnant zone and dense powder hold-up region, as well as a dense liquid flow region that exists in the lower part of a blast furnace, which are consistent with the experimental observations reported in the literature. The simulation is extended to investigate the effects of packing properties and operational conditions on the flow and the volume fraction distribution of each phase in a blast furnace. It is found that solid movement has a significant effect on powder holdup distribution. Small solid particles and low porosity distribution are predicted to affect the fluid flow considerably, and this can cause deterioration in bed permeability. The dynamic powder holdup in a furnace increases significantly with the increase of powder diameter. The findings should be useful to better understand and control blast furnace operations.

  16. A regenerative multiple zone model for HCCI combustion

    SciTech Connect (OSTI)

    Hamosfakidis, Vasileios; Im, Hong G.; Assanis, Dennis N. [Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109 (United States)

    2009-04-15T23:59:59.000Z

    A new conserved scalar approach, the so-called regenerative multiple zone (RMZ) model, is introduced to simulate combustion in homogeneous charge compression ignition (HCCI) engines with significant products of combustion. In this approach, two conserved scalars are introduced, the mixture fraction Z and the initial exhaust gas fraction J, to determine uniquely the state of the reactive system as a function of the two conserved scalars and time. For the numerical solution of the HCCI combustion, the conserved scalar plane is divided into different zones, which represent homogeneous reactors with constant initial exhaust gas level. Particularly, the zones are created based on the distribution of the initial exhaust gases and are mixed and regenerated at every time step during combustion in order to account for the history effects which are due to the finite rate chemistry. A proper methodology to create and initialize the new zones during the combustion, the so-called zone creation strategy (ZCS), is also proposed. For validation, the RMZ model is implemented in the 2DRD code, which is a computational fluid dynamics code that solves the governing equations for a two-dimensional reaction-diffusion problem. Initially, the consistency of the new model is validated in a one-dimensional reaction-diffusion (RD) case. Subsequently, the necessity for a proper zone creation strategy is demonstrated by a two-dimensional RD case. Next, a parametric study is performed to investigate the sensitivity of the new model on the maximum number of zones that is used. Finally, the limitations as well as the advantages of the RMZ model are discussed. (author)

  17. Review and selection of unsaturated flow models

    SciTech Connect (OSTI)

    Reeves, M.; Baker, N.A.; Duguid, J.O. [INTERA, Inc., Las Vegas, NV (United States)

    1994-04-04T23:59:59.000Z

    Since the 1960`s, ground-water flow models have been used for analysis of water resources problems. In the 1970`s, emphasis began to shift to analysis of waste management problems. This shift in emphasis was largely brought about by site selection activities for geologic repositories for disposal of high-level radioactive wastes. Model development during the 1970`s and well into the 1980`s focused primarily on saturated ground-water flow because geologic repositories in salt, basalt, granite, shale, and tuff were envisioned to be below the water table. Selection of the unsaturated zone at Yucca Mountain, Nevada, for potential disposal of waste began to shift model development toward unsaturated flow models. Under the US Department of Energy (DOE), the Civilian Radioactive Waste Management System Management and Operating Contractor (CRWMS M&O) has the responsibility to review, evaluate, and document existing computer models; to conduct performance assessments; and to develop performance assessment models, where necessary. This document describes the CRWMS M&O approach to model review and evaluation (Chapter 2), and the requirements for unsaturated flow models which are the bases for selection from among the current models (Chapter 3). Chapter 4 identifies existing models, and their characteristics. Through a detailed examination of characteristics, Chapter 5 presents the selection of models for testing. Chapter 6 discusses the testing and verification of selected models. Chapters 7 and 8 give conclusions and make recommendations, respectively. Chapter 9 records the major references for each of the models reviewed. Appendix A, a collection of technical reviews for each model, contains a more complete list of references. Finally, Appendix B characterizes the problems used for model testing.

  18. DYES AS TRACERS FOR VADOSE ZONE HYDROLOGY Markus Flury and Nu Nu Wai

    E-Print Network [OSTI]

    Flury, Markus

    in the subsurface. Groundwater contamination often originates in the va- dose zone. Agrochemicals applied

  19. Nanofocusing of soft X-ray laser pulses with Fresnel zone plate and its applications

    E-Print Network [OSTI]

    x Nanofocusing of soft X-ray laser pulses with Fresnel zone plate and its applications 699220056 #12;#12;i keep the faith #12;ii 200 0.16 (Fresnel zone plate) X 100.3 ................................................ 37 40 #12;1 1.1 NA X X (Fresnel zone plate) X (Fresnel zone plate) X #12;2 1

  20. Diffraction theory for azimuthally structured Fresnel zone plate Thordis Vierke and Jurgen Jahns

    E-Print Network [OSTI]

    Jahns, Jürgen

    Diffraction theory for azimuthally structured Fresnel zone plate Thordis Vierke and J¨urgen Jahns on the classical Fresnel zone plate (FZP) [1]. A simple FZP consists of alternating opaque and transparent rings Fresnel zone plate but to add bridges that hold the zones in place [4], see Fig. 1 right. We refer

  1. Magnetically stimulated fluid flow patterns

    ScienceCinema (OSTI)

    Martin, Jim; Solis, Kyle

    2014-08-06T23:59:59.000Z

    Sandia National Laboratories' Jim Martin and Kyle Solis explain research on the effects of magnetic fields on fluid flows and how they stimulate vigorous flows. Fluid flow is a necessary phenomenon in everything from reactors to cooling engines in cars.

  2. Magnetically stimulated fluid flow patterns

    SciTech Connect (OSTI)

    Martin, Jim; Solis, Kyle

    2014-03-06T23:59:59.000Z

    Sandia National Laboratories' Jim Martin and Kyle Solis explain research on the effects of magnetic fields on fluid flows and how they stimulate vigorous flows. Fluid flow is a necessary phenomenon in everything from reactors to cooling engines in cars.

  3. Idaho National Laboratory Vadose Zone Research Park Geohydrological Monitoring Results

    SciTech Connect (OSTI)

    Kristine Baker

    2006-01-01T23:59:59.000Z

    Vadose zone lithology, hydrological characterization of interbed sediments, and hydrological data from subsurface monitoring of Idaho Nuclear Technology and Engineering Center wastewater infiltration are presented. Three-dimensional subsurface lithology of the vadose zone beneath the Vadose Zone Research Park is represented in a 2 dimensional (2 D) diagram showing interpolated lithology between monitoring wells. Laboratory-measured values for saturated hydraulic conductivity and porosity are given for three major interbeds, denoted as the B BC interbed (20 to 35 m bls), the C D interbed (40 to 45 m bls), and the DE 1 2 interbed (55 to 65 m bls), along with an overall physical description of the sediments and geologic depositional environments. Pre-operational pore water pressure conditions are presented to show the presence and location of perched water zones before pond discharge at the New Percolation Ponds. Subsurface infiltration conditions during initial high-volume discharge are presented to show water arrival times and arrival sequences. Steady-state conditions are then presented to show formation and locations of perched water zones and recharge sources after several months of discharge to the New Percolation Ponds.

  4. Parametric Analyses of Alternative Flow Models at Yucca Mountain, Nevada Calibrations and Controls - State of Nevada-Funded Research

    SciTech Connect (OSTI)

    Lehman, L.; Brown, T. P.

    2002-02-26T23:59:59.000Z

    The controls on the potentiometric surface and temperature distribution at Yucca Mountain have long been thought to be related to major fault zones. The exact way the faults influence these distributions has been somewhat elusive. The parametric studies discussed in this paper show that the fault zone x, y and z permeability tensors, as well as the alignment of the fault zone in relation to the flow field (1), are major contributing factors in the pressure and temperature distributions. A series of runs were conducted for the State of Nevada with a 3-dimensional model utilizing the AT2VOC version of the A-TOUGH code (2),(3). The runs were conducted under steady state conditions and utilized fully coupled heat and flow conditions. The model setup and boundary conditions are fully described. Comparisons were done with varying degrees of anisotropic permeability ratios in the fault zones. The resulting temperature and pressure profiles are compared. The model, while simple, allowed us to examine the relationship of the head and temperature distributions to the position and permeability of major fault zones. It is our conclusion that the major faults included in this model do significantly affect the observed head and temperature distributions. Performance Assessments currently may not reflect actual doses at the Compliance boundary due to the potential for radionuclide flow to be captured in the Ghost Dance Fault and be transported primarily south with little dilution and dispersion.

  5. Reflection and Exclusion of Shear Zones in Inhomogeneous Granular Materials

    E-Print Network [OSTI]

    Tamas Borzsonyi; Tamas Unger; Balazs Szabo; Sandra Wegner; Frank Angenstein; Ralf Stannarius

    2011-08-17T23:59:59.000Z

    Shear localization in granular materials is studied experimentally and numerically. The system consists of two material layers with different effective frictions. The presence of the material interface leads to a special type of "total internal reflection" of the shear zone. In a wide range of configurations the reflection is characterized by a fixed angle which is analogous to the critical angle of refraction in optics. The zone leaves and reenters the high friction region at this critical angle and in between it stays near the interface in the low friction region. The formalism describing the geometry of the shear zones and that of refracted and reflected light beams is very similar. For the internal visualization of shear localization two independent experimental techniques were used (i) excavation and (ii) Magnetic Resonance Imaging.

  6. Parallel flow diffusion battery

    DOE Patents [OSTI]

    Yeh, H.C.; Cheng, Y.S.

    1984-01-01T23:59:59.000Z

    A parallel flow diffusion battery for determining the mass distribution of an aerosol has a plurality of diffusion cells mounted in parallel to an aerosol stream, each diffusion cell including a stack of mesh wire screens of different density.

  7. Optical flow switching

    E-Print Network [OSTI]

    Chan, Vincent W. S.

    Present-day networks are being challenged by dramatic increases in bandwidth demand of emerging applications. We will explore a new transport, ldquooptical flow switchingrdquo, that will enable significant growth and ...

  8. Olefin Autoxidation in Flow

    E-Print Network [OSTI]

    Neuenschwander, Ulrich

    Handling hazardous multiphase reactions in flow brings not only safety advantages but also significantly improved performance, due to better mass transfer characteristics. In this paper, we present a continuous microreactor ...

  9. Interactive display system having a scaled virtual target zone

    DOE Patents [OSTI]

    Veligdan, James T.; DeSanto, Leonard

    2006-06-13T23:59:59.000Z

    A display system includes a waveguide optical panel having an inlet face and an opposite outlet face. A projector and imaging device cooperate with the panel for projecting a video image thereon. An optical detector bridges at least a portion of the waveguides for detecting a location on the outlet face within a target zone of an inbound light spot. A controller is operatively coupled to the imaging device and detector for displaying a cursor on the outlet face corresponding with the detected location of the spot within the target zone.

  10. Conjugate flow action functionals

    SciTech Connect (OSTI)

    Venturi, Daniele, E-mail: daniele-venturi@brown.edu [Division of Applied Mathematics, Brown University, Rhode Island 02912 (United States)] [Division of Applied Mathematics, Brown University, Rhode Island 02912 (United States)

    2013-11-15T23:59:59.000Z

    We present a new general framework to construct an action functional for a non-potential field theory. The key idea relies on representing the governing equations relative to a diffeomorphic flow of curvilinear coordinates which is assumed to be functionally dependent on the solution field. Such flow, which will be called the conjugate flow, evolves in space and time similarly to a physical fluid flow of classical mechanics and it can be selected in order to symmetrize the Gâteaux derivative of the field equations with respect to suitable local bilinear forms. This is equivalent to requiring that the governing equations of the field theory can be derived from a principle of stationary action on a Lie group manifold. By using a general operator framework, we obtain the determining equations of such manifold and the corresponding conjugate flow action functional. In particular, we study scalar and vector field theories governed by second-order nonlinear partial differential equations. The identification of transformation groups leaving the conjugate flow action functional invariant could lead to the discovery of new conservation laws in fluid dynamics and other disciplines.

  11. Section 13: Flow control 1 Section 13: Flow control

    E-Print Network [OSTI]

    Kohlenbach, Ulrich

    Geometries for Energyefficient Flow Around Bodies Abstract 14:30 ­ 14:50: Elfriede Friedmann (Universität

  12. Geochemical, mineralogical and microbiological characteristics of sediment from a naturally reduced zone in a uranium-contaminated aquifer

    SciTech Connect (OSTI)

    Campbell, Kate M.; Kukkadapu, Ravi K.; Qafoku, Nikolla; Peacock, Aaron D.; Lesher, E.; Williams, Kenneth H.; Bargar, John R.; Wilkins, Michael J.; Figueroa, Linda A.; Ranville, James; Davis, James; Long, Philip E.

    2012-05-23T23:59:59.000Z

    Localized zones or lenses of naturally reduced sediments have the potential to play a significant role in the fate and transport of redox-sensitive metals and metalloids in aquifers. To assess the mineralogy, microbiology, and redox processes that occur in these zones, we examined several cores from a region of naturally occurring reducing conditions in a uranium-contaminated aquifer (Rifle, CO). Sediment samples from a transect of cores ranging from oxic/suboxic Rifle aquifer sediment to naturally reduced sediment were analyzed for uranium and iron content, oxidation state, and mineralogy, reduced sulfur phases, and solid phase organic carbon content using a suite of analytical and spectroscopic techniques on bulk sediment and size fractions. Solid-phase uranium concentrations were higher in the naturally reduced zone, with a high proportion of the uranium present as reduced U(IV). The sediments were also elevated in reduced sulfur phases and Fe(II), indicating it is very likely that U(VI), Fe(III), and sulfate reduction occurred or is occurring in the sediment. The microbial community was assessed using lipid- and DNA-based techniques, and statistical redundancy analysis was performed to determine correlations between the microbial community and the geochemistry. Increased concentration of solid phase organic carbon and biomass in the naturally reduced sediment suggests that natural bioreduction is stimulated by a zone of increased organic carbon concentration associated with fine-grained material and lower permeability to groundwater flow. Characterization of the naturally bioreduced sediment provides an understanding of the natural processes that occur in the sediment under reducing conditions and how they may impact natural attenuation of radionuclides and other redox sensitive materials. Results also suggest the importance of recalcitrant organic carbon for maintaining reducing conditions and uranium immobilization.

  13. Numerical studies of gas production from several CH4-hydrate zones at the Mallik Site, Mackenzie Delta, Canada

    SciTech Connect (OSTI)

    Moridis, George J.; Collett, Timothy S.; Dallimore, Scott R.; Satoh, Tohru; Hancock, Steven; Weatherill, Brian

    2002-05-08T23:59:59.000Z

    The Mallik site represents an onshore permafrost-associated gas hydrate accumulation in the Mackenzie Delta, Northwest Territories, Canada. A gas hydrate research well was drilled at the site in 1998. The objective of this study is the analysis of various gas production scenarios from several gas-hydrate-bearing zones at the Mallik site. The TOUGH2 general-purpose simulator with the EOSHYDR2 module were used for the analysis. EOSHYDR2 is designed to model the non-isothermal CH{sub 4} release, phase behavior and flow under conditions typical of methane-hydrate deposits by solving the coupled equations of mass and heat balance, and can describe any combination of gas hydrate dissociation mechanisms. Numerical simulations indicated that significant gas hydrate production at the Mallik site was possible by drawing down the pressure on a thin free-gas zone at the base of the hydrate stability field. Gas hydrate zones with underlying aquifers yielded significant gas production entirely from dissociated gas hydrate, but large amounts of produced water. Lithologically isolated gas-hydrate-bearing reservoirs with no underlying free gas or water zones, and gas-hydrate saturations of at least 50% were also studied. In these cases, it was assumed that thermal stimulation by circulating hot water in the well was the method used to induce dissociation. Sensitivity studies indicated that the methane release from the hydrate accumulations increases with gas-hydrate saturation, the initial formation temperature, the temperature of the circulating water in the well, and the formation thermal conductivity. Methane production appears to be less sensitive to the rock and hydrate specific heat and permeability of the formation.

  14. Two-phase unsaturated flow at Yucca Mountain, Nevada - A Report on Current Understanding

    SciTech Connect (OSTI)

    Pruess, K.

    1998-08-01T23:59:59.000Z

    The U.S. civilian nuclear waste program is unique in its focus on disposal of high-level wastes in the unsaturated zone (UZ), above the water table. The potential repository site currently under investigation is located in a semi-arid region of the southwestern U.S. at Yucca Mountain, Nevada. The geology of the site consists of layered sequences of faulted, fractured, and bedded tuffs. The groundwater table is approximately 600 m beneath the land surface, while the proposed repository horizon is at a nominal depth of approximately 375 m. In this kind of environment, two-phase flow is not just a localized perturbation to natural conditions, as in the saturated zone, but is the predominant mode of water and gas flow. The purpose of this report is to review the current understanding of gas and water flow, and mass transport, in the unique hydrogeologic environment of Yucca Mountain. Characteristics of the Yucca Mountain site are examined, and concepts and mathematical modeling approaches are described for variably saturated flow in thick unsaturated zones of fractured rock. The paper includes a brief summary of the disposal concept and repository design, as developed by a team of engineering contractors to the U.S. Department of Energy (DOE), with strong participation from the DOE National Laboratories.

  15. Energy Flow Energy Flow Energy Flow A.Ukleja, T.Tymieniecka, I.Skillicorn 1 Azimuthal asymmetry

    E-Print Network [OSTI]

    Energy Flow Energy Flow Energy Flow A.Ukleja, T.Tymieniecka, I.Skillicorn 1 Azimuthal asymmetry using energy flow method Azimuthal angle distribution at Q2 >100 GeV2 Energy flow method.Ukleja on behalf of the ZEUS Collaboration #12; Energy Flow Energy Flow Energy Flow A.Ukleja, T.Tymieniecka, I

  16. The influence of fluid flow through granitic crust: a thermo-tectonic study in and on Mont Blanc

    E-Print Network [OSTI]

    Glasgow, University of

    The influence of fluid flow through granitic crust: a thermo-tectonic study in and on Mont Blanc Tim Dempster, Cristina Persano and Zoe Shipton *Tim.Dempster@ges.gla.ac.uk Granitic and gneissose within a evolving mountain zone, the metasomatic influence of fluids in granite gneiss and the resulting

  17. Deep groundwater flow as the main pathway for chemical outputs in a small headwater watershed (Mule Hole, South India)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Deep groundwater flow as the main pathway for chemical outputs in a small headwater watershed (Mule of a groundwater baseflow located into the active zone of the crystalline aquifer, below the weir. These findings indicate that groundwater contributes to a large part of chemical outputs at the catchment scale

  18. A meteorological experiment in the melting zone of the Greenland ice sheet

    SciTech Connect (OSTI)

    Oerlemans, J. (Utrecht Univ. (Netherlands)); Vugts, H.F. (Free Univ. of Amsterdam (Netherlands))

    1993-03-01T23:59:59.000Z

    Preliminary results are described from a glaciometeorological experiment carried out in the margin (melting zone) of the Greenland ice sheet in the summers of 1990 and 1991. This work was initiated within the framework of a Dutch research program on land ice and sea level change. Seven meteostations were operated along a transect running from the tundra well onto the ice sheet. At the ice edge, humidity, temperature, and wind profiles were obtained with a tethered balloon. On the ice sheet, 90 km from the edge, a boundary-layer research unit, including a sound detecting and ranging system (SODAR) and a radio acoustic sounding system (RASS), was established. Although focusing on the relation between surface energy balance, glacier mass balance, and ice flow, the experiment has also delivered a unique dataset on the dynamics of the atmospheric boundary layer around the warm tundra-cold ice sheet transition. Unexpected behavior was found for the surface albedo during the melt season. Lowest values are not found close to the ice edge, which is usual for glaciers, but higher on the ice sheet. Meltwater accumulation due to inefficient surface drainage was found to be the cause for this. The wind regime is dominated by katabatic flow from the ice sheet. The katabatic layer is typically 100-200 m thick. Close to the ice edge, the flow exhibits a very regular daily rhythm, with maximum wind speed in the afternoon. Farther on the ice sheet, the regime changes, and wind speed reaches maximum values in late night/early morning.

  19. Use of Melt Flow Rate Test in Reliability Study of Thermoplastic Encapsulation Materials in Photovoltaic Modules

    SciTech Connect (OSTI)

    Moseley, J.; Miller, D.; Shah, Q.-U.-A. S. J.; Sakurai, K.; Kempe, M.; Tamizhmani, G.; Kurtz, S.

    2011-10-01T23:59:59.000Z

    Use of thermoplastic materials as encapsulants in photovoltaic (PV) modules presents a potential concern in terms of high temperature creep, which should be evaluated before thermoplastics are qualified for use in the field. Historically, the issue of creep has been avoided by using thermosetting polymers as encapsulants, such as crosslinked ethylene-co-vinyl acetate (EVA). Because they lack crosslinked networks, however, thermoplastics may be subject to phase transitions and visco-elastic flow at the temperatures and mechanical stresses encountered by modules in the field, creating the potential for a number of reliability and safety issues. Thermoplastic materials investigated in this study include PV-grade uncured-EVA (without curing agents and therefore not crosslinked); polyvinyl butyral (PVB); thermoplastic polyurethane (TPU); and three polyolefins (PO), which have been proposed for use as PV encapsulation. Two approaches were used to evaluate the performance of these materials as encapsulants: module-level testing and a material-level testing.

  20. Development of a capillary wick unsaturated zone pore water sampler

    E-Print Network [OSTI]

    Holder, Michael Wayne

    1989-01-01T23:59:59.000Z

    % of the water added at the surface percolated quickly through the soil and completely bypassed the porous suction cups. Additionally, the pattern of the flow around the cup itself has an effect on the sample collected. Numerical models developed... most efficiently sample pulsed saturated flow. They compared porous ceramic suction samplers with soil filled troughs. They concluded that suction samplers sample unsaturated flow more efficiently than free drainage samplers, whereas the free...

  1. An effective dimensional inspection method based on zone fitting

    E-Print Network [OSTI]

    Pendse, Nachiket Vishwas

    2006-04-12T23:59:59.000Z

    transformation that places the set of points in the zone is modeled as a nonlinear optimization problem. The algorithm is employed to find the form tolerance of 2-D (line, circle) as well as 3-D geometries (cylinder). It is also used to propose an inspection...

  2. NOAAINMFS Developments NOAA Raises Coastal Zone Management Status

    E-Print Network [OSTI]

    attention on the coastal zone for deepwater ports, floating nuclear power plants, and offshore oil and gas to eight vessels supplying three processing plants, with a total output of around 1.2 million pounds of the deep-sea red crab, and declining consumer buying power, make the fu- ture for the red crab market

  3. Experimental and simulation studies of zone isolation in horizontal wells

    E-Print Network [OSTI]

    Tan, Joo Sitt

    1997-01-01T23:59:59.000Z

    into the problem zone may be calculated by knowing the duration of injection before the formation gel sets. Simulation results show that relatively high injection rates (10-30 gal/min) for low viscosity gel (1-5 cp) are obtained with a pressure differential of 50...

  4. Effects of remediation amendments on vadose zone microorganisms

    SciTech Connect (OSTI)

    Miller, Hannah M.; Tilton, Fred A.

    2012-08-10T23:59:59.000Z

    Surfactant-based foam delivery technology has been studied to remediate Hanford 200 area deep vadose zone sediment. However, the surfactants and remediation amendments have an unknown effect on indigenous subsurface microorganisms. Microbial populations are important factors to consider in remediation efforts due to their potential to alter soil geochemistry. This project focuses on measuring microbial metabolic responses to remediation amendments in batch and column studies using Deep Vadose Zone Sediments. Initial studies of the microbes from Hanford 200 area deep vadose zone sediment showed surfactants sodium dodecyl sulfate (SDS) and cocamidopropyl betaine (CAPB) and remediation amendment calcium polysulfide (CPS) had no affect on microbial growth using BiologTM Ecoplates. To move towards a more realistic field analog, soil columns were packed with Hanford 200 Area sediment. Once microbial growth in the column was verified by observing growth of the effluent solution on tryptic soy agar plates, remedial surfactants were injected into the columns, and the resulting metabolic diversity was measured. Results suggest surfactant sodium dodecyl sulfate (SDS) stimulates microbial growth. The soil columns were also visualized using X-ray microtomography to inspect soil packing and possibly probe for evidence of biofilms. Overall, BiologTM Ecoplates provide a rapid assay to predict effects of remediation amendments on Hanford 200 area deep vadose zone microorganisms.

  5. Identifying fracture zones in the Austin Chalk using seismic attributes

    E-Print Network [OSTI]

    Bafia, Daniel Joseph

    1998-01-01T23:59:59.000Z

    . After studying various attributes, it was determined that there is no direct evidence of these fracture zones, but areas that are more prone to fracturing can be deduced from lithology. "Clean chalk, or areas that lack shale interbeds, is more brittle...

  6. Archived Reference Climate Zone: 3B Los Angeles, California

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  7. Archived Reference Climate Zone: 3B Los Angeles, California

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  8. Archived Reference Climate Zone: 3B Las Vegas, Nevada

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  9. Archived Reference Climate Zone: 3B Las Vegas, Nevada

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  10. Archived Reference Climate Zone: TMY2 Weather Data

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  11. Archived Reference Climate Zone: TMY2 Weather Data

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  12. Seismic Imaging of Transition Zone Discontinuities Suggests Hot

    E-Print Network [OSTI]

    Rhoads, James

    inconclusive. To investigate pertinent thermal anomalies, we imaged with inverse scattering of SS waves interior concerns mantle plumes, and as the archetype for plume-related hotspot activity, Hawaii has long upwelling from a thermal boundary near the base of the transition zone (11) and shallow-mantle processes (12

  13. Deciding Timed Bisimulation for Timed Automata Using Zone Valuation Graph

    E-Print Network [OSTI]

    Prasad, Sanjiva

    Deciding Timed Bisimulation for Timed Automata Using Zone Valuation Graph Shibashis Guha, Chinmay was first proved to be decidable for timed automata by Cerans using a product construction method on region graph. Several other methods have been proposed in the literature since then for decid- ing timed

  14. Identifying fracture zones in the Austin Chalk using seismic attributes 

    E-Print Network [OSTI]

    Bafia, Daniel Joseph

    1998-01-01T23:59:59.000Z

    . After studying various attributes, it was determined that there is no direct evidence of these fracture zones, but areas that are more prone to fracturing can be deduced from lithology. "Clean chalk, or areas that lack shale interbeds, is more brittle...

  15. www.VadoseZoneJournal.org Soil Architecture and

    E-Print Network [OSTI]

    Wildenschild, Dorthe

    www.VadoseZoneJournal.org Soil Architecture and Physicochemical Func ons: An Introduc on Soils func engineers with the best educa on possible. The 16 papers in this special sec on on soil architecture measurement, visualiza on, and modeling of soil structure (architecture) and physical, chemical

  16. Spectroscopic Evidence for Uranium Bearing Precipitates in Vadose Zone

    E-Print Network [OSTI]

    Northwest Laboratory, Richland, Washington 99352 Uranium (U) solid-state speciation in vadose zone sediments of past nuclear fuel fabrication processes, uranium (U) has been recognized as one of the most widespreadHanfordsitesthatreceivedU-containingwastesduring its mission of Pu production between 1940 and 1990. Unirradiated fuel rod wastes were disposed

  17. Archived Reference Climate Zone: 2A Houston, Texas

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  18. Archived Reference Climate Zone: 2A Houston, Texas

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  19. Capture zone design for a contaminated shallow unconfined aquifer

    E-Print Network [OSTI]

    Cann, Eric Roy

    1997-01-01T23:59:59.000Z

    from the early 1950's to 1987. The extent of the ground water contamination has impacted City of Austin properties, private residential areas, and is migrating towards the Colorado River to the South. A capture zone is proposed to stop the contaminants...

  20. air pollution zones: Topics by E-print Network

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

    air pollution zones First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Environmental Pollution Air...

  1. Development of Hydrologic Characterization Technology of Fault Zones

    E-Print Network [OSTI]

    Karasaki, Kenzi

    2009-01-01T23:59:59.000Z

    model for fissured fractured reservoir, Soc. Pet. Eng. J. ,flow simulations in fractured reservoirs, Report LBL-15227,behavior of naturally fractured reservoirs, Soc. Pet. Eng.

  2. Piezoelectric axial flow microvalve

    SciTech Connect (OSTI)

    Gemmen, Randall; Thornton, Jimmy; Vipperman, Jeffrey S.; Clark, William W.

    2007-01-09T23:59:59.000Z

    This invention is directed to a fuel cell operable with a quantity of fuel and a quantity of an oxidizer to produce electrical power, the fuel cell including a fuel cell body including a labyrinth system structured to permit the fuel and the oxidizer to flow therethrough; at least a first catalyst in fluid communication with the labyrinth; and at least a first microvalve operably disposed within at least a portion of the labyrinth. The microvalve utilizes a deflectable member operable upon the application of a voltage from a voltage source. The microvalve includes an elongated flow channel formed therein and extending substantially longitudinally between the first and second ends to permit substantially longitudinal flow of the fluid therethrough and between the first and second ends; and the deflectable member disposed on the valve body, the deflectable member including at least a first piezoelectric portion that is piezoelectrically operable to deflect the deflectable member between an open position and a closed position upon the application of a voltage, the deflectable member in the closed position being operable to resist the flow of the fluid through the flow channel.

  3. Progressive flow cracking of coal/oil mixtures with high metals content catalyst

    SciTech Connect (OSTI)

    Zandona, O.J.

    1989-10-10T23:59:59.000Z

    This patent describes a process for economically producing liquid fuel products at least partly from coal. It comprises: introducing a progressive flow catalytic cracking zone a charge stock comprising a pumpable mixture of solid, particulate coal and carbo-metallic oil and forming within the zone a stream having a linear velocity of at least about 25 feet per second. The stream comprising the charge stock and a hydrocarbon zeolite cracking catalyst promoting dehydrogenation of the charge stock; forming mobile hydrogen within the zone by the dehydrogenation; introducing the mobile hydrogen into the stream by dehydrogenation of the charge stock in the absence of added molecular hydrogen, thereby producing liquid products from the charge stock while laying down coke on the hydrocarbon cracking catalyst in the range of about 0.3% to about 3% and thereby producing spent catalyst; separating from the spent catalyst the liquid products.

  4. Gaseous Flows in Galaxies

    E-Print Network [OSTI]

    F. Combes

    2007-09-02T23:59:59.000Z

    The gas component plays a major role in the dynamics of spiral galaxies, because of its dissipative character, and its ability to exchange angular momentum with stars in the disk. Due to its small velocity dispersion, it triggers gravitational instabilities, and the corresponding non-axisymmetric patterns produce gravity torques, which mediate these angular momentum exchanges. When a srong bar pattern develops with the same pattern speed all over the disk, only gas inside corotation can flow towards the center. But strong bars are not long lived in presence of gas, and multiple-speed spiral patterns can develop between bar phases, and help the galaxy to accrete external gas flowing from cosmic filaments. The gas is then intermittently driven to the galaxy center, to form nuclear starbursts and fuel an active nucleus. The various time-scales of these gaseous flows are described.

  5. Perched-Water Analysis Related to Deep Vadose Zone Contaminant Transport and Impact to Groundwater

    SciTech Connect (OSTI)

    Oostrom, Martinus; Truex, Michael J.; Carroll, KC; Chronister, Glen B.

    2013-11-15T23:59:59.000Z

    Perched-water conditions have been observed in the vadose zone above a fine-grained zone that is located just a few meters above the water table beneath the B-complex at the Hanford Site. The perched water, containing elevated concentrations of uranium and technetium-99, is important to consider in evaluating the future flux of contaminated water into the groundwater. A study was conducted to examine the perched-water conditions and quantitatively evaluate 1) factors that control perching behavior, 2) contaminant flux toward groundwater, and, 3) associated groundwater impact. Based on the current vertical transport pathways and large areal extent of the perched system, the evaluation was conducted using a one-dimensional (1-D) analysis. Steady-state scoping calculations showed that the perching-layer hydraulic conductivity is likely to be up to two orders of magnitude less than the base case value obtained from Hanford site literature. Numerical flow and transport simulations provided both steady-state and transient system estimates of water and contaminant behavior and were used to further refine the range of conditions consistent with current observations of perched water height and to provide estimates of future water and contaminant flux to groundwater. With a recharge rate of 6 cm/yr, representative of current disturbed surface conditions, contaminant flux from the perched water occurs over a time interval of tens of years. However, if the recharge rate is 0.35 cm/yr, representative of returning recharge to pre-Hanford Site levels, the contaminant flux into the groundwater is spread over hundreds of years. It was also demonstrated that removal of perched water by pumping would reduce the flux of water (and associated contaminants) to the groundwater, thereby impacting the long-term rate of contaminant movement to the groundwater.

  6. Zoning, Land-use Fragmentation And Environmental Justice In Early Phoenix, AZ Euclidean Zoning adopted by Phoenix in 1930 to

    E-Print Network [OSTI]

    Hall, Sharon J.

    (6) Planing and flour mills, industrial steam laundries, ice manufacturing and cold storage, chemical and Light Industrial ·Multifamily Residential zones as buffers between homogeneous, racially+ : distancing of Phoenecian suburbs from expanding industry and problems of CBD; Boosterism thrives ·Onset

  7. Boullier The fault zone geology 1 Fault zone geology: lessons from drilling through the Nojima and 1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    drilling through the Nojima and 1 Chelungpu faults 2 3 Anne-Marie Boullier 4-Marie.Boullier@obs.ujf-grenoble.fr 8 9 Abstract 10 Several drilling projects have been conducted through significant topics 32 for future research, one of which was "fault zone drilling

  8. Boullier The fault zone geology 1 Fault zone geology: lessons from drilling through the Nojima and 1

    E-Print Network [OSTI]

    Boyer, Edmond

    drilling through the Nojima and 1 Chelungpu faults 2 3 Anne-Marie Boullier 4-Marie.Boullier@obs.ujf-grenoble.fr 8 9 Abstract 10 Several drilling projects have been conducted through was "fault zone drilling combined with surface-based 33 geophysical and geological

  9. Busted Butte Unsaturated Zone Transport Test: Fiscal Year 1998 Status Report Yucca Mountain Site Characterization Program Deliverable SPU85M4

    SciTech Connect (OSTI)

    Bussod, G.Y.; Turin, H.J.; Lowry, W.E.

    1999-11-01T23:59:59.000Z

    This report describes the status of the Busted Butte Unsaturated Zone Transport Test (UZTT) and documents the progress of construction activities and site and laboratory characterization activities undertaken in fiscal year 1998. Also presented are predictive flow-and-transport simulations for Test Phases 1 and 2 of testing and the preliminary results and status of these test phases. Future anticipated results obtained from unsaturated-zone (UZ) transport testing in the Calico Hills Formation at Busted Butte are also discussed in view of their importance to performance assessment (PA) needs to build confidence in and reduce the uncertainty of site-scale flow-and-transport models and their abstractions for performance for license application. The principal objectives of the test are to address uncertainties associated with flow and transport in the UZ site-process models for Yucca Mountain, as identified by the PA working group in February 1997. These include but are not restricted to: (1) The effect of heterogeneities on flow and transport in unsaturated and partially saturated conditions in the Calico Hills Formation. In particular, the test aims to address issues relevant to fracture-matrix interactions and permeability contrast boundaries; (2) The migration behavior of colloids in fractured and unfractured Calico Hills rocks; (3) The validation through field testing of laboratory sorption experiments in unsaturated Calico Hills rocks; (4) The evaluation of the 3-D site-scale flow-and-transport process model (i.e., equivalent-continuum/dual-permeability/discrete-fracture-fault representations of flow and transport) used in the PA abstractions for license application; and (5) The effect of scaling from lab scale to field scale and site scale.

  10. Multiphase cooling flows

    E-Print Network [OSTI]

    Peter A. Thomas

    1996-08-20T23:59:59.000Z

    I discuss the multiphase nature of the intracluster medium whose neglect can lead to overestimates of the baryon fraction of clusters by up to a factor of two. The multiphase form of the cooling flow equations are derived and reduced to a simple form for a wide class of self-similar density distributions. It is shown that steady-state cooling flows are \\emph{not} consistent with all possible emissivity profiles which can therefore be used as a test of the theory. In combination, they provide strong constraints on the mass distribution within the cooling radius.

  11. Behavior of the Mass Transfer Zone in a Biosorption Column

    E-Print Network [OSTI]

    Volesky, Bohumil

    in a flow-through fixed-bed sorption column enabled the prediction of breakthrough curves for Cu2+ and Ca in a flow-through fixed-bed column. Copper has been chosen as a typical toxic heavy metal with simple

  12. A nanomechanical investigation of the crack tip process zone of marble

    E-Print Network [OSTI]

    Brooks, Zenzile (Zenzile Z.)

    2010-01-01T23:59:59.000Z

    This study explores the interaction between crack initiation and nanomechanical properties in the crack tip process zone (zone of microcracking at the tip of a propagating crack) of a brittle geomaterial. Samples of Carrara ...

  13. "Table HC9.5 Space Heating Usage Indicators by Climate Zone...

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

    5 Space Heating Usage Indicators by Climate Zone, 2005" " Million U.S. Housing Units" ,,"Climate Zone1" ,,"Less than 2,000 CDD and --",,,,"2,000 CDD or More and Less than 4,000...

  14. Deep Vadose Zone–Applied Field Research Initiative Fiscal Year 2012 Annual Report

    SciTech Connect (OSTI)

    Wellman, Dawn M.; Truex, Michael J.; Johnson, Timothy C.; Bunn, Amoret L.; Golovich, Elizabeth C.

    2013-03-14T23:59:59.000Z

    This annual report describes the background of the Deep Vadose Zone-Applied Field Research Initiative, and some of the programmatic approaches and transformational technologies in groundwater and deep vadose zone remediation developed during fiscal year 2012.

  15. Collateral damage: Evolution with displacement of fracture distribution and secondary fault strands in fault damage zones

    E-Print Network [OSTI]

    Savage, Heather M.; Brodsky, Emily E.

    2011-01-01T23:59:59.000Z

    E. McCallum (1999), Reservoir damage around faults: OutcropSkar (2005), Controls on damage zone asymmetry of a normal2007), The evolution of the damage zone with fault growth in

  16. "Table HC9.10 Home Appliances Usage Indicators by Climate Zone...

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

    0 Home Appliances Usage Indicators by Climate Zone, 2005" " Million U.S. Housing Units" ,,"Climate Zone1" ,,"Less than 2,000 CDD and --",,,,"2,000 CDD or More and Less than 4,000...

  17. Trapping capacity of fault zones, downdip Yegua Formation, Texas Gulf Coast basin 

    E-Print Network [OSTI]

    Hintz, Jena Christine

    2001-01-01T23:59:59.000Z

    The homogenization of sediment from shearing forms traps in both the hanging wall and footwall due to capillary pressure differences. The sheared zone associated with large faults can form traps. Sheared zones associated ...

  18. Zoning and occupancy-moderation for residential space-conditioning under demand-driven electricity pricing

    E-Print Network [OSTI]

    Leow, Woei Ling, 1977-

    2012-01-01T23:59:59.000Z

    Occupancy-moderated zonal space-conditioning (OZS) refers to the partitioning of a residence into different zones and independently operating the space-conditioning equipment of each zone based on its occupancy. OZS remains ...

  19. Flow cytometry apparatus

    DOE Patents [OSTI]

    Pinkel, Daniel (Walnut Creek, CA)

    1991-01-01T23:59:59.000Z

    An obstruction across the flow chamber creates a one dimensional convergence of a sheath fluid. A passageway in the construction directs flat cells near to the area of one dimensional convergence in the sheath fluid to provide proper orientation of flat cells at fast rates.

  20. AGN and Cooling Flows

    E-Print Network [OSTI]

    James Binney

    2001-03-23T23:59:59.000Z

    For two decades the steady-state cooling-flow model has dominated the literature of cluster and elliptical-galaxy X-ray sources. For ten years this model has been in severe difficulty from a theoretical point of view, and it is now coming under increasing pressure observationally. For two decades the steady-state cooling-flow model has dominated the literature of cluster and elliptical-galaxy X-ray sources. For ten years this model has been in severe difficulty from a theoretical point of view, and it is now coming under increasing pressure observationally. A small number of enthusiasts have argued for a radically different interpretation of the data, but had little impact on prevailing opinion because the unsteady heating picture that they advocate is extremely hard to work out in detail. Here I explain why it is difficult to extract robust observational predictions from the heating picture. Major problems include the variability of the sources, the different ways in which a bi-polar flow can impact on X-ray emission, the weakness of synchrotron emission from sub-relativistic flows, and the sensitivity of synchrotron emission to a magnetic field that is probably highly localized.

  1. Three-dimensional numerical modeling of the influence of faults on groundwater flow at Yucca Mountain, Nevada

    SciTech Connect (OSTI)

    Cohen, Andrew J.B.

    1999-06-01T23:59:59.000Z

    Numerical simulations of groundwater flow at Yucca Mountain, Nevada are used to investigate how the faulted hydrogeologic structure influences groundwater flow from a proposed high-level nuclear waste repository. Simulations are performed using a 3-D model that has a unique grid block discretization to accurately represent the faulted geologic units, which have variable thicknesses and orientations. Irregular grid blocks enable explicit representation of these features. Each hydrogeologic layer is discretized into a single layer of irregular and dipping grid blocks, and faults are discretized such that they are laterally continuous and displacement varies along strike. In addition, the presence of altered fault zones is explicitly modeled, as appropriate. The model has 23 layers and 11 faults, and approximately 57,000 grid blocks and 200,000 grid block connections. In the past, field measurement of upward vertical head gradients and high water table temperatures near faults were interpreted as indicators of upwelling from a deep carbonate aquifer. Simulations show, however, that these features can be readily explained by the geometry of hydrogeologic layers, the variability of layer permeabilities and thermal conductivities, and by the presence of permeable fault zones or faults with displacement only. In addition, a moderate water table gradient can result from fault displacement or a laterally continuous low permeability fault zone, but not from a high permeability fault zone, as others postulated earlier. Large-scale macrodispersion results from the vertical and lateral diversion of flow near the contact of high and low permeability layers at faults, and from upward flow within high permeability fault zones. Conversely, large-scale channeling can occur due to groundwater flow into areas with minimal fault displacement. Contaminants originating at the water table can flow in a direction significantly different than that of the water table gradient, and isolated zones of contaminants will occur at the water table downgradient. This behavior is not predicted by traditional models of contaminant transport. In addition, the influence of a particular type of fault cannot be generalized; depending on the location where contaminants enter the saturated zone, faults may either enhance of inhibit vertical dispersion.

  2. Blockage of natural convection boundary layer flow in a multizone enclosure

    SciTech Connect (OSTI)

    Scott, D.; Anderson, R.; Figliola, R.S.

    1986-02-01T23:59:59.000Z

    This paper reports the results of an experimental study that examines the transition between flow regimes, as a function of aperture size, in a two-zone enclosure with heated and cooled end walls. A constant heat flux boundary condition was maintained on one vertical end wall, and an isothermal cold temperature sink was maintained on the opposite vertical end wall. All of the remaining surfaces were highly insulated. The transition between the boundary layer driven regime and the bulk density driven regime was established as a function of the geometry of the aperture in the partition that separated the hot and cold zones. The results demonstrate that transition from the boundary layer driven regime to the bulk density driven regime is caused by blockage of the boundary layer flow, when the area of the flow aperture is reduced below a critical value. A simple flow model has been developed which predicts that the critical aperture area for the onset of flow blockage is directly proportional to the number of active heat transfer surfaces and inversely proportional to the Rayleigh number which characterizes the level of heating and cooling provided to the active heat transfer surfaces.

  3. Extreme-UV lithography vacuum chamber zone seal

    DOE Patents [OSTI]

    Haney, Steven J. (Tracy, CA); Herron, Donald Joe (Manteca, CA); Klebanoff, Leonard E. (San Ramon, CA); Replogle, William C. (Livermore, CA)

    2003-04-15T23:59:59.000Z

    Control of particle contamination on the reticle and carbon contamination of optical surfaces in photolithography systems can be achieved by the establishment of multiple pressure zones in the photolithography systems. The different zones will enclose the reticle, projection optics, wafer, and other components of system. The system includes a vacuum apparatus that includes: a housing defining a vacuum chamber; one or more metrology trays situated within the vacuum chamber each of which is supported by at least one support member, wherein the tray separates the vacuum chamber into a various compartments that are maintained at different pressures; and conductance seal devices for adjoining the perimeter of each tray to an inner surface of the housing wherein the tray is decoupled from vibrations emanating from the inner surface of the housing.

  4. Extreme-UV lithography vacuum chamber zone seal

    DOE Patents [OSTI]

    Haney, Steven J. (Tracy, CA); Herron, Donald Joe (Manteca, CA); Klebanoff, Leonard E. (San Ramon, CA); Replogle, William C. (Livermore, CA)

    2003-04-08T23:59:59.000Z

    Control of particle contamination on the reticle and carbon contamination of optical surfaces in photolithography systems can be achieved by the establishment of multiple pressure zones in the photolithography systems. The different zones will enclose the reticle, projection optics, wafer, and other components of system. The system includes a vacuum apparatus that includes: a housing defining a vacuum chamber; one or more metrology trays situated within the vacuum chamber each of which is supported by at least one support member, wherein the tray separates the vacuum chamber into a various compartments that are maintained at different pressures; and conductance seal devices for adjoining the perimeter of each tray to an inner surface of the housing wherein the tray is decoupled from vibrations emanating from the inner surface of the housing.

  5. Extreme-UV lithography vacuum chamber zone seal

    DOE Patents [OSTI]

    Haney, Steven J. (Tracy, CA); Herron, Donald Joe (Manteca, CA); Klebanoff, Leonard E. (San Ramon, CA); Replogle, William C. (Livermore, CA)

    2001-01-01T23:59:59.000Z

    Control of particle contamination on the reticle and carbon contamination of optical surfaces in photolithography systems can be achieved by the establishment of multiple pressure zones in the photolithography systems. The different zones will enclose the reticle, projection optics, wafer, and other components of system. The system includes a vacuum apparatus that includes: a housing defining a vacuum chamber; one or more metrology trays situated within the vacuum chamber each of which is supported by at least one support member, wherein the tray separates the vacuum chamber into a various compartments that are maintained at different pressures; and conductance seal devices for adjoining the perimeter of each tray to an inner surface of the housing wherein the tray is decoupled from vibrations emanating from the inner surface of the housing.

  6. Diamagnetic pumping near the base of a stellar convection zone

    E-Print Network [OSTI]

    L. L. Kitchatinov; G. Rüdiger

    2008-02-18T23:59:59.000Z

    The property of inhomogeneous turbulence in conducting fluids to expel large-scale magnetic fields in the direction of decreasing turbulence intensity is shown as important for the magnetic field dynamics near the base of a stellar convection zone. The downward diamagnetic pumping confines a fossil internal magnetic field in the radiative core so that the field geometry is appropriate for formation of the solar tachocline. For the stars of solar age, the diamagnetic confinement is efficient only if the ratio of turbulent magnetic diffusivity of the convection zone to the (microscopic or turbulent) diffusivity of the radiative interiour is larger than 10^5. Confinement in younger stars require still larger diffusivity ratio. The observation of persistent magnetic structures on young solar-type stars can thus provide evidences for the nonexistence of tachoclines in stellar interiors and on the level of turbulence in radiative cores.

  7. Characterization of the solar light field within the ocean mesopelagic zone based on radiative transfer simulations

    E-Print Network [OSTI]

    Stramski, Dariusz

    Characterization of the solar light field within the ocean mesopelagic zone based on radiative light field Apparent optical properties Mesopelagic zone Radiative transfer modeling a b s t r a c t The solar light field within the ocean from the sea surface to the bottom of the mesopelagic zone

  8. STATE OF CALIFORNIA CONSTANT VOLUME SINGLE ZONE UNITARY AIR CONDITIONER AND HEAT PUMP SYSTEMS

    E-Print Network [OSTI]

    STATE OF CALIFORNIA CONSTANT VOLUME SINGLE ZONE UNITARY AIR CONDITIONER AND HEAT PUMP SYSTEMS CEC Volume Single Zone Unitary Air Conditioner and Heat Pump Systems (Page 1 of 4) Project Name CONSTANT VOLUME SINGLE ZONE UNITARY AIR CONDITIONER AND HEAT PUMP SYSTEMS CEC-MECH-3A (Revised 08

  9. Can the transition zone test the Plate and Plume hypotheses? Gillian R. Foulger

    E-Print Network [OSTI]

    Foulger, G. R.

    Can the transition zone test the Plate and Plume hypotheses? Gillian R. Foulger Dept. Earth wave-speed anomalies above, within and below the transition zone. The Plate model, in contrast and on into the transition zone, but rarely, if ever, deeper and through the 660-km discontinuity. The 410-km discontinuity

  10. Down the retirement risk zone with gun and camera Geoffrey Kingston

    E-Print Network [OSTI]

    Blennerhassett, Peter

    for negotiating the risk zone.1 Fortunately, economic logic comes to the rescue. Early retirement is particularly1 Down the retirement risk zone with gun and camera Geoffrey Kingston Lance Fisher Department;2 Abstract The retirement risk zone represents a fragile period in the financial life cycle of people

  11. IEA BESTEST Multi-Zone Non-Airflow In-Depth Diagnostic Cases: Preprint

    SciTech Connect (OSTI)

    Neymark, J.; Judkoff, R.; Alexander, D.; Felsmann, C.; Strachan, P.; Wijsman, A.

    2011-11-01T23:59:59.000Z

    This paper documents a set of in-depth diagnostic test cases for multi-zone heat transfer models that do not include the heat and mass transfer effects of airflow between zones. The multi-zone non-airflow test cases represent an extension to IEA BESTEST (Judkoff and Neymark 1995a).

  12. Defining the Fresnel zone for broadband radiation Jeremy Pearce and Daniel Mittleman*

    E-Print Network [OSTI]

    Mittleman, Daniel

    Defining the Fresnel zone for broadband radiation Jeremy Pearce and Daniel Mittleman* Department of the Fresnel zone is central to many areas of imaging. In tomographic imaging, the transverse spatial resolution can be limited by the size of the first Fresnel zone, usually defined only for monochromatic

  13. Volume Fresnel zone plates fabricated by femtosecond laser direct writing Pornsak Srisungsitthisunti

    E-Print Network [OSTI]

    Xu, Xianfan

    Volume Fresnel zone plates fabricated by femtosecond laser direct writing Pornsak October 2006; accepted 29 November 2006; published online 2 January 2007 In this letter, volume Fresnel. A volume zone plate consists of a number of layers of Fresnel zone plates designed to focus light together

  14. Accurate and fast simulation of Fresnel zone plates and multi-level diffractive lenses

    E-Print Network [OSTI]

    Jahns, Jürgen

    Accurate and fast simulation of Fresnel zone plates and multi-level diffractive lenses Qing Cao, such as various Fresnel zone plates [1, 2] and muti-level diffractive lenses [3], can be used for focusing and fast simulation of various Fresnel zone plates and multi-level diffractive lenses. As two tests, we

  15. FRESNEL-ZONE MEASUREMENT AND ANALYSIS OF A DUAL-POLARIZED METEOROLOGICAL RADAR ANTENNA

    E-Print Network [OSTI]

    Collings, Iain B.

    FRESNEL-ZONE MEASUREMENT AND ANALYSIS OF A DUAL- POLARIZED METEOROLOGICAL RADAR ANTENNA D.B. Hayman Fresnel-zone holographic technique was used to obtain the radiation pattern for the upgraded antenna in the measurement of this antenna and the analysis of the results. Keywords: Antenna measurements, Fresnel zone

  16. Modified Fresnel zone plates with sharp Gaussian focal spots Qing Cao and Jurgen Jahns

    E-Print Network [OSTI]

    Jahns, Jürgen

    Modified Fresnel zone plates with sharp Gaussian focal spots Qing Cao and J¨urgen Jahns Traditional Fresnel zone plates (TFZPs) and photon sieves [1, 2, 3] can be used for the focusing and imaging of soft x.e. a modified Fresnel zone plate, MFZP) can realized the same functions as a photon sieve. In particular, we

  17. Scanning microscopy using a short-focal-length Fresnel zone plate

    E-Print Network [OSTI]

    Scanning microscopy using a short-focal-length Fresnel zone plate Ethan Schonbrun,* Winnie N. Ye demonstrate a form of scanning microscopy using a short-focal-length Fresnel zone plate and a low-NA relay. In this scheme, parallel scanning microscopy using a Fresnel zone-plate array would require only a single spatial

  18. Modified composite Fresnel zone plates with high numerical apertures Qing Cao and Jurgen Jahns

    E-Print Network [OSTI]

    Jahns, Jürgen

    Modified composite Fresnel zone plates with high numerical apertures Qing Cao and J¨urgen Jahns Traditional Fresnel zone plates (TFZPs) can be used for the focusing and imaging of soft x-rays and EUV proposed the modified Fresnel zone plates that can produce sharp Gaussian focal spots (we call them

  19. Zone heated inlet ignited diesel particulate filter regeneration

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI; Ament, Frank [Troy, MI

    2012-06-26T23:59:59.000Z

    An exhaust system that processes exhaust generated by an engine is provided. The system includes: a particulate filter (PF) that is disposed downstream of the engine and that filters particulates from the exhaust; and a grid that includes electrically resistive material that is segmented by non-conductive material into a plurality of zones and wherein the grid is applied to an exterior upstream surface of the PF.

  20. Motorist understanding of alternative construction work zone signing

    E-Print Network [OSTI]

    Ogden, Michael Anthony

    1991-01-01T23:59:59.000Z

    of this report. Previous research has documented motorist misinterpretation of construction work zone signing. Two previous studies were used to identify the four study signs for this project. These four signs were: 1) The Advance Road Construction Sign, 2.... More than five hundred motorists were surveyed for this research project. An additional sample of twenty-five transportation professionals were surveyed to gain further insight on the current signs and their alternatives. The results were compared...